diff --git a/compiler/rustc_codegen_cranelift/build_sysroot/alloc_system/lib.rs b/compiler/rustc_codegen_cranelift/build_sysroot/alloc_system/lib.rs
index ca145e4f2a5..c832d5e5ebb 100644
--- a/compiler/rustc_codegen_cranelift/build_sysroot/alloc_system/lib.rs
+++ b/compiler/rustc_codegen_cranelift/build_sysroot/alloc_system/lib.rs
@@ -23,7 +23,7 @@
all(target_arch = "wasm32", not(target_os = "emscripten")),
feature(integer_atomics, stdsimd)
)]
-#![cfg_attr(any(unix, target_os = "cloudabi", target_os = "redox"), feature(libc))]
+#![cfg_attr(any(unix, target_os = "redox"), feature(libc))]
// The minimum alignment guaranteed by the architecture. This value is used to
// add fast paths for low alignment values.
#[cfg(all(any(target_arch = "x86",
@@ -69,7 +69,7 @@ const MIN_ALIGN: usize = 16;
/// independently of the standard library’s global allocator.
#[stable(feature = "alloc_system_type", since = "1.28.0")]
pub struct System;
-#[cfg(any(windows, unix, target_os = "cloudabi", target_os = "redox"))]
+#[cfg(any(windows, unix, target_os = "redox"))]
mod realloc_fallback {
use core::alloc::{GlobalAlloc, Layout};
use core::cmp;
@@ -89,7 +89,7 @@ mod realloc_fallback {
}
}
}
-#[cfg(any(unix, target_os = "cloudabi", target_os = "redox"))]
+#[cfg(any(unix, target_os = "redox"))]
mod platform {
extern crate libc;
use core::ptr;
diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_cloudabi.rs b/compiler/rustc_target/src/spec/aarch64_unknown_cloudabi.rs
deleted file mode 100644
index 67f69b40e55..00000000000
--- a/compiler/rustc_target/src/spec/aarch64_unknown_cloudabi.rs
+++ /dev/null
@@ -1,16 +0,0 @@
-use crate::spec::Target;
-
-pub fn target() -> Target {
- let mut base = super::cloudabi_base::opts();
- base.max_atomic_width = Some(128);
- base.unsupported_abis = super::arm_base::unsupported_abis();
- base.linker = Some("aarch64-unknown-cloudabi-cc".to_string());
-
- Target {
- llvm_target: "aarch64-unknown-cloudabi".to_string(),
- pointer_width: 64,
- data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".to_string(),
- arch: "aarch64".to_string(),
- options: base,
- }
-}
diff --git a/compiler/rustc_target/src/spec/armv7_unknown_cloudabi_eabihf.rs b/compiler/rustc_target/src/spec/armv7_unknown_cloudabi_eabihf.rs
deleted file mode 100644
index d47ee541b25..00000000000
--- a/compiler/rustc_target/src/spec/armv7_unknown_cloudabi_eabihf.rs
+++ /dev/null
@@ -1,18 +0,0 @@
-use crate::spec::{Target, TargetOptions};
-
-pub fn target() -> Target {
- let mut base = super::cloudabi_base::opts();
- base.cpu = "cortex-a8".to_string();
- base.max_atomic_width = Some(64);
- base.features = "+v7,+vfp3,+neon".to_string();
- base.unsupported_abis = super::arm_base::unsupported_abis();
- base.linker = Some("armv7-unknown-cloudabi-eabihf-cc".to_string());
-
- Target {
- llvm_target: "armv7-unknown-cloudabi-eabihf".to_string(),
- pointer_width: 32,
- data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
- arch: "arm".to_string(),
- options: TargetOptions { mcount: "\u{1}mcount".to_string(), ..base },
- }
-}
diff --git a/compiler/rustc_target/src/spec/cloudabi_base.rs b/compiler/rustc_target/src/spec/cloudabi_base.rs
deleted file mode 100644
index 20a095742ec..00000000000
--- a/compiler/rustc_target/src/spec/cloudabi_base.rs
+++ /dev/null
@@ -1,36 +0,0 @@
-use crate::spec::{LinkArgs, LinkerFlavor, RelroLevel, TargetOptions, TlsModel};
-
-pub fn opts() -> TargetOptions {
- let mut args = LinkArgs::new();
- args.insert(
- LinkerFlavor::Gcc,
- vec![
- "-Wl,-Bstatic".to_string(),
- "-Wl,--no-dynamic-linker".to_string(),
- "-Wl,--gc-sections".to_string(),
- ],
- );
-
- TargetOptions {
- os: "cloudabi".to_string(),
- executables: true,
- os_family: None,
- linker_is_gnu: true,
- pre_link_args: args,
- position_independent_executables: true,
- // As CloudABI only supports static linkage, there is no need
- // for dynamic TLS. The C library therefore does not provide
- // __tls_get_addr(), which is normally used to perform dynamic
- // TLS lookups by programs that make use of dlopen(). Only the
- // "local-exec" and "initial-exec" TLS models can be used.
- //
- // "local-exec" is more efficient than "initial-exec", as the
- // latter has one more level of indirection: it accesses the GOT
- // (Global Offset Table) to obtain the effective address of a
- // thread-local variable. Using a GOT is useful only when doing
- // dynamic linking.
- tls_model: TlsModel::LocalExec,
- relro_level: RelroLevel::Full,
- ..Default::default()
- }
-}
diff --git a/compiler/rustc_target/src/spec/i686_unknown_cloudabi.rs b/compiler/rustc_target/src/spec/i686_unknown_cloudabi.rs
deleted file mode 100644
index 0cdb9f9de56..00000000000
--- a/compiler/rustc_target/src/spec/i686_unknown_cloudabi.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-use crate::spec::{LinkerFlavor, Target};
-
-pub fn target() -> Target {
- let mut base = super::cloudabi_base::opts();
- base.cpu = "pentium4".to_string();
- base.max_atomic_width = Some(64);
- base.linker = Some("i686-unknown-cloudabi-cc".to_string());
- base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m32".to_string());
- base.stack_probes = true;
-
- Target {
- llvm_target: "i686-unknown-cloudabi".to_string(),
- pointer_width: 32,
- data_layout: "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-\
- f64:32:64-f80:32-n8:16:32-S128"
- .to_string(),
- arch: "x86".to_string(),
- options: base,
- }
-}
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs
index 045da7963c5..1bda33939b8 100644
--- a/compiler/rustc_target/src/spec/mod.rs
+++ b/compiler/rustc_target/src/spec/mod.rs
@@ -54,7 +54,6 @@ mod apple_base;
mod apple_sdk_base;
mod arm_base;
mod avr_gnu_base;
-mod cloudabi_base;
mod dragonfly_base;
mod freebsd_base;
mod fuchsia_base;
@@ -628,11 +627,6 @@ supported_targets! {
("msp430-none-elf", msp430_none_elf),
- ("aarch64-unknown-cloudabi", aarch64_unknown_cloudabi),
- ("armv7-unknown-cloudabi-eabihf", armv7_unknown_cloudabi_eabihf),
- ("i686-unknown-cloudabi", i686_unknown_cloudabi),
- ("x86_64-unknown-cloudabi", x86_64_unknown_cloudabi),
-
("aarch64-unknown-hermit", aarch64_unknown_hermit),
("x86_64-unknown-hermit", x86_64_unknown_hermit),
("x86_64-unknown-hermit-kernel", x86_64_unknown_hermit_kernel),
diff --git a/compiler/rustc_target/src/spec/x86_64_unknown_cloudabi.rs b/compiler/rustc_target/src/spec/x86_64_unknown_cloudabi.rs
deleted file mode 100644
index cf57f4ec624..00000000000
--- a/compiler/rustc_target/src/spec/x86_64_unknown_cloudabi.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-use crate::spec::{LinkerFlavor, Target};
-
-pub fn target() -> Target {
- let mut base = super::cloudabi_base::opts();
- base.cpu = "x86-64".to_string();
- base.max_atomic_width = Some(64);
- base.linker = Some("x86_64-unknown-cloudabi-cc".to_string());
- base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m64".to_string());
- base.stack_probes = true;
-
- Target {
- llvm_target: "x86_64-unknown-cloudabi".to_string(),
- pointer_width: 64,
- data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
- .to_string(),
- arch: "x86_64".to_string(),
- options: base,
- }
-}
diff --git a/library/panic_abort/src/lib.rs b/library/panic_abort/src/lib.rs
index 9690996e602..a8ebb4b3219 100644
--- a/library/panic_abort/src/lib.rs
+++ b/library/panic_abort/src/lib.rs
@@ -32,7 +32,7 @@ pub unsafe extern "C" fn __rust_start_panic(_payload: usize) -> u32 {
abort();
cfg_if::cfg_if! {
- if #[cfg(any(unix, target_os = "cloudabi"))] {
+ if #[cfg(unix)] {
unsafe fn abort() -> ! {
libc::abort();
}
diff --git a/library/panic_unwind/src/lib.rs b/library/panic_unwind/src/lib.rs
index 682289384c8..0b74a844fec 100644
--- a/library/panic_unwind/src/lib.rs
+++ b/library/panic_unwind/src/lib.rs
@@ -49,7 +49,6 @@ cfg_if::cfg_if! {
mod real_imp;
} else if #[cfg(any(
all(target_family = "windows", target_env = "gnu"),
- target_os = "cloudabi",
target_os = "psp",
target_family = "unix",
all(target_vendor = "fortanix", target_env = "sgx"),
diff --git a/library/std/build.rs b/library/std/build.rs
index f730569f74b..a14ac63c7a8 100644
--- a/library/std/build.rs
+++ b/library/std/build.rs
@@ -18,7 +18,6 @@ fn main() {
|| target.contains("uwp")
|| target.contains("windows")
|| target.contains("fuchsia")
- || target.contains("cloudabi")
|| (target.contains("sgx") && target.contains("fortanix"))
|| target.contains("hermit")
|| target.contains("l4re")
diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
index 4cff6cb6f10..e2d4f2e6a56 100644
--- a/library/std/src/fs.rs
+++ b/library/std/src/fs.rs
@@ -8,7 +8,7 @@
#![stable(feature = "rust1", since = "1.0.0")]
#![deny(unsafe_op_in_unsafe_fn)]
-#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten", target_env = "sgx"))))]
+#[cfg(all(test, not(any(target_os = "emscripten", target_env = "sgx"))))]
mod tests;
use crate::ffi::OsString;
diff --git a/library/std/src/net/tcp.rs b/library/std/src/net/tcp.rs
index 58c6343ea34..325acf0b979 100644
--- a/library/std/src/net/tcp.rs
+++ b/library/std/src/net/tcp.rs
@@ -1,6 +1,6 @@
#![deny(unsafe_op_in_unsafe_fn)]
-#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten"))))]
+#[cfg(all(test, not(target_os = "emscripten")))]
mod tests;
use crate::io::prelude::*;
diff --git a/library/std/src/net/udp.rs b/library/std/src/net/udp.rs
index 17e3e4497c4..2377a76a33d 100644
--- a/library/std/src/net/udp.rs
+++ b/library/std/src/net/udp.rs
@@ -1,4 +1,4 @@
-#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten", target_env = "sgx"))))]
+#[cfg(all(test, not(any(target_os = "emscripten", target_env = "sgx"))))]
mod tests;
use crate::fmt;
diff --git a/library/std/src/process.rs b/library/std/src/process.rs
index 2c7ed4614bc..77a11ac8201 100644
--- a/library/std/src/process.rs
+++ b/library/std/src/process.rs
@@ -97,7 +97,7 @@
#![stable(feature = "process", since = "1.0.0")]
#![deny(unsafe_op_in_unsafe_fn)]
-#[cfg(all(test, not(any(target_os = "cloudabi", target_os = "emscripten", target_env = "sgx"))))]
+#[cfg(all(test, not(any(target_os = "emscripten", target_env = "sgx"))))]
mod tests;
use crate::io::prelude::*;
diff --git a/library/std/src/sys/cloudabi/abi/bitflags.rs b/library/std/src/sys/cloudabi/abi/bitflags.rs
deleted file mode 100644
index 2383277ad72..00000000000
--- a/library/std/src/sys/cloudabi/abi/bitflags.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2018 Nuxi (https://nuxi.nl/) and contributors.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1. Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-// SUCH DAMAGE.
-
-#[cfg(feature = "bitflags")]
-use bitflags::bitflags;
-
-// Minimal implementation of bitflags! in case we can't depend on the bitflags
-// crate. Only implements `bits()` and a `from_bits_truncate()` that doesn't
-// actually truncate.
-#[cfg(not(feature = "bitflags"))]
-macro_rules! bitflags {
- (
- $(#[$attr:meta])*
- pub struct $name:ident: $type:ty {
- $($(#[$const_attr:meta])* const $const:ident = $val:expr;)*
- }
- ) => {
- $(#[$attr])*
- #[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
- pub struct $name { bits: $type }
- impl $name {
- $($(#[$const_attr])* pub const $const: $name = $name{ bits: $val };)*
- pub fn bits(&self) -> $type { self.bits }
- pub fn from_bits_truncate(bits: $type) -> Self { $name{ bits } }
- }
- }
-}
diff --git a/library/std/src/sys/cloudabi/abi/cloudabi.rs b/library/std/src/sys/cloudabi/abi/cloudabi.rs
deleted file mode 100644
index d67f0f81a9f..00000000000
--- a/library/std/src/sys/cloudabi/abi/cloudabi.rs
+++ /dev/null
@@ -1,2954 +0,0 @@
-// Copyright (c) 2016-2017 Nuxi and contributors.
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-// 1. Redistributions of source code must retain the above copyright
-// notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-// notice, this list of conditions and the following disclaimer in the
-// documentation and/or other materials provided with the distribution.
-//
-// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-// ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-// SUCH DAMAGE.
-//
-// This file is automatically generated. Do not edit.
-//
-// Source: https://github.com/NuxiNL/cloudabi
-
-// Appease Rust's tidy.
-// ignore-tidy-linelength
-
-//! **PLEASE NOTE: This entire crate including this
-//! documentation is automatically generated from
-//! [`cloudabi.txt`](https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt)**
-//!
-//! # Nuxi CloudABI
-//!
-//! CloudABI is what you get if you take POSIX, add capability-based
-//! security, and remove everything that's incompatible with that. The
-//! result is a minimal ABI consisting of only 49 syscalls.
-//!
-//! CloudABI doesn't have its own kernel, but instead is implemented in existing
-//! kernels: FreeBSD has CloudABI support for x86-64 and arm64, and [a patch-set
-//! for NetBSD](https://github.com/NuxiNL/netbsd) and [a patch-set for
-//! Linux](https://github.com/NuxiNL/linux) are available as well. This means that
-//! CloudABI binaries can be executed on different operating systems, without any
-//! modification.
-//!
-//! ## Capability-Based Security
-//!
-//! Capability-based security means that processes can only perform
-//! actions that have no global impact. Processes cannot open files by
-//! their absolute path, cannot open network connections, and cannot
-//! observe global system state such as the process table.
-//!
-//! The capabilities of a process are fully determined by its set of open
-//! file descriptors (fds). For example, files can only be opened if the
-//! process already has a file descriptor to a directory the file is in.
-//!
-//! Unlike in POSIX, where processes are normally started with file
-//! descriptors 0, 1, and 2 reserved for standard input, output, and
-//! error, CloudABI does not reserve any file descriptor numbers for
-//! specific purposes.
-//!
-//! In CloudABI, a process depends on its parent process to launch it with
-//! the right set of resources, since the process will not be able to open
-//! any new resources. For example, a simple static web server would need
-//! to be started with a file descriptor to a [TCP
-//! listener](https://github.com/NuxiNL/flower), and a file descriptor to
-//! the directory for which to serve files. The web server will then be
-//! unable to do anything other than reading files in that directory, and
-//! process incoming network connections.
-//!
-//! So, unknown CloudABI binaries can safely be executed without the need
-//! for containers, virtual machines, or other sandboxing technologies.
-//!
-//! Watch [Ed Schouten's Talk at
-//! 32C3](https://www.youtube.com/watch?v=3N29vrPoDv8) for more
-//! information about what capability-based security for UNIX means.
-//!
-//! ## Cloudlibc
-//!
-//! [Cloudlibc](https://github.com/NuxiNL/cloudlibc) is an implementation
-//! of the C standard library, without all CloudABI-incompatible
-//! functions. For example, Cloudlibc does not have `printf`, but does
-//! have `fprintf`. It does not have `open`, but does have `openat`.
-//!
-//! ## CloudABI-Ports
-//!
-//! [CloudABI-Ports](https://github.com/NuxiNL/cloudabi-ports) is a
-//! collection of ports of commonly used libraries and applications to
-//! CloudABI. It contains software such as `zlib`, `libpng`, `boost`,
-//! `memcached`, and much more. The software is patched to not depend on
-//! any global state, such as files in `/etc` or `/dev`, using `open()`,
-//! etc.
-//!
-//! ## Using CloudABI
-//!
-//! Instructions for using CloudABI (including kernel modules/patches,
-//! toolchain, and ports) are available for several operating systems:
-//!
-//! - [Arch Linux](https://nuxi.nl/cloudabi/archlinux/)
-//! - [Debian, Ubuntu, and other Debian derivatives](https://nuxi.nl/cloudabi/debian/)
-//! - [FreeBSD, PC-BSD and DragonFly BSD](https://nuxi.nl/cloudabi/freebsd/)
-//! - [Mac OS X](https://nuxi.nl/cloudabi/mac/)
-//! - [NetBSD](https://nuxi.nl/cloudabi/netbsd/)
-//!
-//! ## Specification of the ABI
-//!
-//! The entire ABI is specified in a file called
-//! [`cloudabi.txt`](https://github.com/NuxiNL/cloudabi/blob/master/cloudabi.txt),
-//! from which all
-//! [headers](https://github.com/NuxiNL/cloudabi/tree/master/headers)
-//! and documentation (including the one you're reading now) is generated.
-
-#![no_std]
-#![allow(non_camel_case_types)]
-#![allow(deprecated)] // FIXME: using `mem::uninitialized()`
-
-include!("bitflags.rs");
-
-/// File or memory access pattern advisory information.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum advice {
- /// The application expects that it will not access the
- /// specified data in the near future.
- DONTNEED = 1,
- /// The application expects to access the specified data
- /// once and then not reuse it thereafter.
- NOREUSE = 2,
- /// The application has no advice to give on its behavior
- /// with respect to the specified data.
- NORMAL = 3,
- /// The application expects to access the specified data
- /// in a random order.
- RANDOM = 4,
- /// The application expects to access the specified data
- /// sequentially from lower offsets to higher offsets.
- SEQUENTIAL = 5,
- /// The application expects to access the specified data
- /// in the near future.
- WILLNEED = 6,
-}
-
-/// Enumeration describing the kind of value stored in [`auxv`].
-#[repr(u32)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum auxtype {
- /// Base address of the binary argument data provided to
- /// [`proc_exec()`](fn.proc_exec.html).
- ARGDATA = 256,
- /// Length of the binary argument data provided to
- /// [`proc_exec()`](fn.proc_exec.html).
- ARGDATALEN = 257,
- /// Base address at which the executable is placed in
- /// memory.
- BASE = 7,
- /// Base address of a buffer of random data that may be
- /// used for non-cryptographic purposes, for example as a
- /// canary for stack smashing protection.
- CANARY = 258,
- /// Length of a buffer of random data that may be used
- /// for non-cryptographic purposes, for example as a
- /// canary for stack smashing protection.
- CANARYLEN = 259,
- /// Number of CPUs that the system this process is running
- /// on has.
- NCPUS = 260,
- /// Terminator of the auxiliary vector.
- NULL = 0,
- /// Smallest memory object size for which individual
- /// memory protection controls can be configured.
- PAGESZ = 6,
- /// Address of the first ELF program header of the
- /// executable.
- PHDR = 3,
- /// Number of ELF program headers of the executable.
- PHNUM = 4,
- /// Identifier of the process.
- ///
- /// This environment does not provide any simple numerical
- /// process identifiers, for the reason that these are not
- /// useful in distributed contexts. Instead, processes are
- /// identified by a UUID.
- ///
- /// This record should point to sixteen bytes of binary
- /// data, containing a version 4 UUID (fully random).
- PID = 263,
- /// Address of the ELF header of the vDSO.
- ///
- /// The vDSO is a shared library that is mapped in the
- /// address space of the process. It provides entry points
- /// for every system call supported by the environment,
- /// all having a corresponding symbol that is prefixed
- /// with `cloudabi_sys_`. System calls should be invoked
- /// through these entry points.
- ///
- /// The first advantage of letting processes call into a
- /// vDSO to perform system calls instead of raising
- /// hardware traps is that it allows for easy emulation of
- /// executables on top of existing operating systems. The
- /// second advantage is that in cases where an operating
- /// system provides native support for CloudABI executables,
- /// it may still implement partial userspace
- /// implementations of these system calls to improve
- /// performance (e.g., [`clock_time_get()`](fn.clock_time_get.html)). It also provides
- /// a more dynamic way of adding, removing or replacing
- /// system calls.
- SYSINFO_EHDR = 262,
- /// Thread ID of the initial thread of the process.
- TID = 261,
-}
-
-/// Identifiers for clocks.
-#[repr(u32)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum clockid {
- /// The system-wide monotonic clock, which is defined as a
- /// clock measuring real time, whose value cannot be
- /// adjusted and which cannot have negative clock jumps.
- ///
- /// The epoch of this clock is undefined. The absolute
- /// time value of this clock therefore has no meaning.
- MONOTONIC = 1,
- /// The CPU-time clock associated with the current
- /// process.
- PROCESS_CPUTIME_ID = 2,
- /// The system-wide clock measuring real time. Time value
- /// zero corresponds with 1970-01-01T00:00:00Z.
- REALTIME = 3,
- /// The CPU-time clock associated with the current thread.
- THREAD_CPUTIME_ID = 4,
-}
-
-/// A userspace condition variable.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct condvar(pub u32);
-/// The condition variable is in its initial state. There
-/// are no threads waiting to be woken up. If the
-/// condition variable has any other value, the kernel
-/// must be called to wake up any sleeping threads.
-pub const CONDVAR_HAS_NO_WAITERS: condvar = condvar(0);
-
-/// Identifier for a device containing a file system. Can be used
-/// in combination with [`inode`] to uniquely identify a file on the
-/// local system.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct device(pub u64);
-
-/// A reference to the offset of a directory entry.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct dircookie(pub u64);
-/// Permanent reference to the first directory entry
-/// within a directory.
-pub const DIRCOOKIE_START: dircookie = dircookie(0);
-
-/// Error codes returned by system calls.
-///
-/// Not all of these error codes are returned by the system calls
-/// provided by this environment, but are either used in userspace
-/// exclusively or merely provided for alignment with POSIX.
-#[repr(u16)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum errno {
- /// No error occurred. System call completed successfully.
- SUCCESS = 0,
- /// Argument list too long.
- TOOBIG = 1,
- /// Permission denied.
- ACCES = 2,
- /// Address in use.
- ADDRINUSE = 3,
- /// Address not available.
- ADDRNOTAVAIL = 4,
- /// Address family not supported.
- AFNOSUPPORT = 5,
- /// Resource unavailable, or operation would block.
- AGAIN = 6,
- /// Connection already in progress.
- ALREADY = 7,
- /// Bad file descriptor.
- BADF = 8,
- /// Bad message.
- BADMSG = 9,
- /// Device or resource busy.
- BUSY = 10,
- /// Operation canceled.
- CANCELED = 11,
- /// No child processes.
- CHILD = 12,
- /// Connection aborted.
- CONNABORTED = 13,
- /// Connection refused.
- CONNREFUSED = 14,
- /// Connection reset.
- CONNRESET = 15,
- /// Resource deadlock would occur.
- DEADLK = 16,
- /// Destination address required.
- DESTADDRREQ = 17,
- /// Mathematics argument out of domain of function.
- DOM = 18,
- /// Reserved.
- DQUOT = 19,
- /// File exists.
- EXIST = 20,
- /// Bad address.
- FAULT = 21,
- /// File too large.
- FBIG = 22,
- /// Host is unreachable.
- HOSTUNREACH = 23,
- /// Identifier removed.
- IDRM = 24,
- /// Illegal byte sequence.
- ILSEQ = 25,
- /// Operation in progress.
- INPROGRESS = 26,
- /// Interrupted function.
- INTR = 27,
- /// Invalid argument.
- INVAL = 28,
- /// I/O error.
- IO = 29,
- /// Socket is connected.
- ISCONN = 30,
- /// Is a directory.
- ISDIR = 31,
- /// Too many levels of symbolic links.
- LOOP = 32,
- /// File descriptor value too large.
- MFILE = 33,
- /// Too many links.
- MLINK = 34,
- /// Message too large.
- MSGSIZE = 35,
- /// Reserved.
- MULTIHOP = 36,
- /// Filename too long.
- NAMETOOLONG = 37,
- /// Network is down.
- NETDOWN = 38,
- /// Connection aborted by network.
- NETRESET = 39,
- /// Network unreachable.
- NETUNREACH = 40,
- /// Too many files open in system.
- NFILE = 41,
- /// No buffer space available.
- NOBUFS = 42,
- /// No such device.
- NODEV = 43,
- /// No such file or directory.
- NOENT = 44,
- /// Executable file format error.
- NOEXEC = 45,
- /// No locks available.
- NOLCK = 46,
- /// Reserved.
- NOLINK = 47,
- /// Not enough space.
- NOMEM = 48,
- /// No message of the desired type.
- NOMSG = 49,
- /// Protocol not available.
- NOPROTOOPT = 50,
- /// No space left on device.
- NOSPC = 51,
- /// Function not supported.
- NOSYS = 52,
- /// The socket is not connected.
- NOTCONN = 53,
- /// Not a directory or a symbolic link to a directory.
- NOTDIR = 54,
- /// Directory not empty.
- NOTEMPTY = 55,
- /// State not recoverable.
- NOTRECOVERABLE = 56,
- /// Not a socket.
- NOTSOCK = 57,
- /// Not supported, or operation not supported on socket.
- NOTSUP = 58,
- /// Inappropriate I/O control operation.
- NOTTY = 59,
- /// No such device or address.
- NXIO = 60,
- /// Value too large to be stored in data type.
- OVERFLOW = 61,
- /// Previous owner died.
- OWNERDEAD = 62,
- /// Operation not permitted.
- PERM = 63,
- /// Broken pipe.
- PIPE = 64,
- /// Protocol error.
- PROTO = 65,
- /// Protocol not supported.
- PROTONOSUPPORT = 66,
- /// Protocol wrong type for socket.
- PROTOTYPE = 67,
- /// Result too large.
- RANGE = 68,
- /// Read-only file system.
- ROFS = 69,
- /// Invalid seek.
- SPIPE = 70,
- /// No such process.
- SRCH = 71,
- /// Reserved.
- STALE = 72,
- /// Connection timed out.
- TIMEDOUT = 73,
- /// Text file busy.
- TXTBSY = 74,
- /// Cross-device link.
- XDEV = 75,
- /// Extension: Capabilities insufficient.
- NOTCAPABLE = 76,
-}
-
-bitflags! {
- /// The state of the file descriptor subscribed to with
- /// [`FD_READ`](enum.eventtype.html#variant.FD_READ) or [`FD_WRITE`](enum.eventtype.html#variant.FD_WRITE).
- #[repr(C)]
- pub struct eventrwflags: u16 {
- /// The peer of this socket has closed or disconnected.
- const HANGUP = 0x0001;
- }
-}
-
-/// Type of a subscription to an event or its occurrence.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum eventtype {
- /// The time value of clock [`subscription.union.clock.clock_id`](struct.subscription_clock.html#structfield.clock_id)
- /// has reached timestamp [`subscription.union.clock.timeout`](struct.subscription_clock.html#structfield.timeout).
- CLOCK = 1,
- /// Condition variable [`subscription.union.condvar.condvar`](struct.subscription_condvar.html#structfield.condvar) has
- /// been woken up and [`subscription.union.condvar.lock`](struct.subscription_condvar.html#structfield.lock) has been
- /// acquired for writing.
- CONDVAR = 2,
- /// File descriptor [`subscription.union.fd_readwrite.fd`](struct.subscription_fd_readwrite.html#structfield.fd) has
- /// data available for reading. This event always triggers
- /// for regular files.
- FD_READ = 3,
- /// File descriptor [`subscription.union.fd_readwrite.fd`](struct.subscription_fd_readwrite.html#structfield.fd) has
- /// capacity available for writing. This event always
- /// triggers for regular files.
- FD_WRITE = 4,
- /// Lock [`subscription.union.lock.lock`](struct.subscription_lock.html#structfield.lock) has been acquired for
- /// reading.
- LOCK_RDLOCK = 5,
- /// Lock [`subscription.union.lock.lock`](struct.subscription_lock.html#structfield.lock) has been acquired for
- /// writing.
- LOCK_WRLOCK = 6,
- /// The process associated with process descriptor
- /// [`subscription.union.proc_terminate.fd`](struct.subscription_proc_terminate.html#structfield.fd) has terminated.
- PROC_TERMINATE = 7,
-}
-
-/// Exit code generated by a process when exiting.
-pub type exitcode = u32;
-
-/// A file descriptor number.
-///
-/// Unlike on POSIX-compliant systems, none of the file descriptor
-/// numbers are reserved for a purpose (e.g., stdin, stdout,
-/// stderr). Operating systems are not required to allocate new
-/// file descriptors in ascending order.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct fd(pub u32);
-/// Returned to the child process by [`proc_fork()`](fn.proc_fork.html).
-pub const PROCESS_CHILD: fd = fd(0xffffffff);
-/// Passed to [`mem_map()`](fn.mem_map.html) when creating a mapping to
-/// anonymous memory.
-pub const MAP_ANON_FD: fd = fd(0xffffffff);
-
-bitflags! {
- /// File descriptor flags.
- #[repr(C)]
- pub struct fdflags: u16 {
- /// Append mode: Data written to the file is always
- /// appended to the file's end.
- const APPEND = 0x0001;
- /// Write according to synchronized I/O data integrity
- /// completion. Only the data stored in the file is
- /// synchronized.
- const DSYNC = 0x0002;
- /// Non-blocking mode.
- const NONBLOCK = 0x0004;
- /// Synchronized read I/O operations.
- const RSYNC = 0x0008;
- /// Write according to synchronized I/O file integrity
- /// completion. In addition to synchronizing the data
- /// stored in the file, the system may also synchronously
- /// update the file's metadata.
- const SYNC = 0x0010;
- }
-}
-
-bitflags! {
- /// Which file descriptor attributes to adjust.
- #[repr(C)]
- pub struct fdsflags: u16 {
- /// Adjust the file descriptor flags stored in
- /// [`fdstat.fs_flags`](struct.fdstat.html#structfield.fs_flags).
- const FLAGS = 0x0001;
- /// Restrict the rights of the file descriptor to the
- /// rights stored in [`fdstat.fs_rights_base`](struct.fdstat.html#structfield.fs_rights_base) and
- /// [`fdstat.fs_rights_inheriting`](struct.fdstat.html#structfield.fs_rights_inheriting).
- const RIGHTS = 0x0002;
- }
-}
-
-/// Relative offset within a file.
-pub type filedelta = i64;
-
-/// Non-negative file size or length of a region within a file.
-pub type filesize = u64;
-
-/// The type of a file descriptor or file.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum filetype {
- /// The type of the file descriptor or file is unknown or
- /// is different from any of the other types specified.
- UNKNOWN = 0,
- /// The file descriptor or file refers to a block device
- /// inode.
- BLOCK_DEVICE = 16,
- /// The file descriptor or file refers to a character
- /// device inode.
- CHARACTER_DEVICE = 17,
- /// The file descriptor or file refers to a directory
- /// inode.
- DIRECTORY = 32,
- /// The file descriptor refers to a process handle.
- PROCESS = 80,
- /// The file descriptor or file refers to a regular file
- /// inode.
- REGULAR_FILE = 96,
- /// The file descriptor refers to a shared memory object.
- SHARED_MEMORY = 112,
- /// The file descriptor or file refers to a datagram
- /// socket.
- SOCKET_DGRAM = 128,
- /// The file descriptor or file refers to a byte-stream
- /// socket.
- SOCKET_STREAM = 130,
- /// The file refers to a symbolic link inode.
- SYMBOLIC_LINK = 144,
-}
-
-bitflags! {
- /// Which file attributes to adjust.
- #[repr(C)]
- pub struct fsflags: u16 {
- /// Adjust the last data access timestamp to the value
- /// stored in [`filestat.st_atim`](struct.filestat.html#structfield.st_atim).
- const ATIM = 0x0001;
- /// Adjust the last data access timestamp to the time
- /// of clock [`REALTIME`](enum.clockid.html#variant.REALTIME).
- const ATIM_NOW = 0x0002;
- /// Adjust the last data modification timestamp to the
- /// value stored in [`filestat.st_mtim`](struct.filestat.html#structfield.st_mtim).
- const MTIM = 0x0004;
- /// Adjust the last data modification timestamp to the
- /// time of clock [`REALTIME`](enum.clockid.html#variant.REALTIME).
- const MTIM_NOW = 0x0008;
- /// Truncate or extend the file to the size stored in
- /// [`filestat.st_size`](struct.filestat.html#structfield.st_size).
- const SIZE = 0x0010;
- }
-}
-
-/// File serial number that is unique within its file system.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct inode(pub u64);
-
-/// Number of hard links to an inode.
-pub type linkcount = u32;
-
-/// A userspace read-recursive readers-writer lock, similar to a
-/// Linux futex or a FreeBSD umtx.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct lock(pub u32);
-/// Value indicating that the lock is in its initial
-/// unlocked state.
-pub const LOCK_UNLOCKED: lock = lock(0x00000000);
-/// Bitmask indicating that the lock is write-locked. If
-/// set, the lower 30 bits of the lock contain the
-/// identifier of the thread that owns the write lock.
-/// Otherwise, the lower 30 bits of the lock contain the
-/// number of acquired read locks.
-pub const LOCK_WRLOCKED: lock = lock(0x40000000);
-/// Bitmask indicating that the lock is either read locked
-/// or write locked, and that one or more threads have
-/// their execution suspended, waiting to acquire the
-/// lock. The last owner of the lock must call the
-/// kernel to unlock.
-///
-/// When the lock is acquired for reading and this bit is
-/// set, it means that one or more threads are attempting
-/// to acquire this lock for writing. In that case, other
-/// threads should only acquire additional read locks if
-/// suspending execution would cause a deadlock. It is
-/// preferred to suspend execution, as this prevents
-/// starvation of writers.
-pub const LOCK_KERNEL_MANAGED: lock = lock(0x80000000);
-/// Value indicating that the lock is in an incorrect
-/// state. A lock cannot be in its initial unlocked state,
-/// while also managed by the kernel.
-pub const LOCK_BOGUS: lock = lock(0x80000000);
-
-bitflags! {
- /// Flags determining the method of how paths are resolved.
- #[repr(C)]
- pub struct lookupflags: u32 {
- /// As long as the resolved path corresponds to a symbolic
- /// link, it is expanded.
- const SYMLINK_FOLLOW = 0x00000001;
- }
-}
-
-bitflags! {
- /// Memory mapping flags.
- #[repr(C)]
- pub struct mflags: u8 {
- /// Instead of mapping the contents of the file provided,
- /// create a mapping to anonymous memory. The file
- /// descriptor argument must be set to [`MAP_ANON_FD`](constant.MAP_ANON_FD.html),
- /// and the offset must be set to zero.
- const ANON = 0x01;
- /// Require that the mapping is performed at the base
- /// address provided.
- const FIXED = 0x02;
- /// Changes are private.
- const PRIVATE = 0x04;
- /// Changes are shared.
- const SHARED = 0x08;
- }
-}
-
-bitflags! {
- /// Memory page protection options.
- ///
- /// This implementation enforces the `W^X` property: Pages cannot be
- /// mapped for execution while also mapped for writing.
- #[repr(C)]
- pub struct mprot: u8 {
- /// Page can be executed.
- const EXEC = 0x01;
- /// Page can be written.
- const WRITE = 0x02;
- /// Page can be read.
- const READ = 0x04;
- }
-}
-
-bitflags! {
- /// Methods of synchronizing memory with physical storage.
- #[repr(C)]
- pub struct msflags: u8 {
- /// Performs asynchronous writes.
- const ASYNC = 0x01;
- /// Invalidates cached data.
- const INVALIDATE = 0x02;
- /// Performs synchronous writes.
- const SYNC = 0x04;
- }
-}
-
-/// Specifies the number of threads sleeping on a condition
-/// variable that should be woken up.
-pub type nthreads = u32;
-
-bitflags! {
- /// Open flags used by [`file_open()`](fn.file_open.html).
- #[repr(C)]
- pub struct oflags: u16 {
- /// Create file if it does not exist.
- const CREAT = 0x0001;
- /// Fail if not a directory.
- const DIRECTORY = 0x0002;
- /// Fail if file already exists.
- const EXCL = 0x0004;
- /// Truncate file to size 0.
- const TRUNC = 0x0008;
- }
-}
-
-bitflags! {
- /// Flags provided to [`sock_recv()`](fn.sock_recv.html).
- #[repr(C)]
- pub struct riflags: u16 {
- /// Returns the message without removing it from the
- /// socket's receive queue.
- const PEEK = 0x0004;
- /// On byte-stream sockets, block until the full amount
- /// of data can be returned.
- const WAITALL = 0x0010;
- }
-}
-
-bitflags! {
- /// File descriptor rights, determining which actions may be
- /// performed.
- #[repr(C)]
- pub struct rights: u64 {
- /// The right to invoke [`fd_datasync()`](fn.fd_datasync.html).
- ///
- /// If [`FILE_OPEN`](struct.rights.html#associatedconstant.FILE_OPEN) is set, includes the right to
- /// invoke [`file_open()`](fn.file_open.html) with [`DSYNC`](struct.fdflags.html#associatedconstant.DSYNC).
- const FD_DATASYNC = 0x0000000000000001;
- /// The right to invoke [`fd_read()`](fn.fd_read.html) and [`sock_recv()`](fn.sock_recv.html).
- ///
- /// If [`MEM_MAP`](struct.rights.html#associatedconstant.MEM_MAP) is set, includes the right to
- /// invoke [`mem_map()`](fn.mem_map.html) with memory protection option
- /// [`READ`](struct.mprot.html#associatedconstant.READ).
- ///
- /// If [`FD_SEEK`](struct.rights.html#associatedconstant.FD_SEEK) is set, includes the right to invoke
- /// [`fd_pread()`](fn.fd_pread.html).
- const FD_READ = 0x0000000000000002;
- /// The right to invoke [`fd_seek()`](fn.fd_seek.html). This flag implies
- /// [`FD_TELL`](struct.rights.html#associatedconstant.FD_TELL).
- const FD_SEEK = 0x0000000000000004;
- /// The right to invoke [`fd_stat_put()`](fn.fd_stat_put.html) with
- /// [`FLAGS`](struct.fdsflags.html#associatedconstant.FLAGS).
- const FD_STAT_PUT_FLAGS = 0x0000000000000008;
- /// The right to invoke [`fd_sync()`](fn.fd_sync.html).
- ///
- /// If [`FILE_OPEN`](struct.rights.html#associatedconstant.FILE_OPEN) is set, includes the right to
- /// invoke [`file_open()`](fn.file_open.html) with [`RSYNC`](struct.fdflags.html#associatedconstant.RSYNC) and
- /// [`DSYNC`](struct.fdflags.html#associatedconstant.DSYNC).
- const FD_SYNC = 0x0000000000000010;
- /// The right to invoke [`fd_seek()`](fn.fd_seek.html) in such a way that the
- /// file offset remains unaltered (i.e., [`CUR`](enum.whence.html#variant.CUR) with
- /// offset zero).
- const FD_TELL = 0x0000000000000020;
- /// The right to invoke [`fd_write()`](fn.fd_write.html) and [`sock_send()`](fn.sock_send.html).
- ///
- /// If [`MEM_MAP`](struct.rights.html#associatedconstant.MEM_MAP) is set, includes the right to
- /// invoke [`mem_map()`](fn.mem_map.html) with memory protection option
- /// [`WRITE`](struct.mprot.html#associatedconstant.WRITE).
- ///
- /// If [`FD_SEEK`](struct.rights.html#associatedconstant.FD_SEEK) is set, includes the right to
- /// invoke [`fd_pwrite()`](fn.fd_pwrite.html).
- const FD_WRITE = 0x0000000000000040;
- /// The right to invoke [`file_advise()`](fn.file_advise.html).
- const FILE_ADVISE = 0x0000000000000080;
- /// The right to invoke [`file_allocate()`](fn.file_allocate.html).
- const FILE_ALLOCATE = 0x0000000000000100;
- /// The right to invoke [`file_create()`](fn.file_create.html) with
- /// [`DIRECTORY`](enum.filetype.html#variant.DIRECTORY).
- const FILE_CREATE_DIRECTORY = 0x0000000000000200;
- /// If [`FILE_OPEN`](struct.rights.html#associatedconstant.FILE_OPEN) is set, the right to invoke
- /// [`file_open()`](fn.file_open.html) with [`CREAT`](struct.oflags.html#associatedconstant.CREAT).
- const FILE_CREATE_FILE = 0x0000000000000400;
- /// The right to invoke [`file_link()`](fn.file_link.html) with the file
- /// descriptor as the source directory.
- const FILE_LINK_SOURCE = 0x0000000000001000;
- /// The right to invoke [`file_link()`](fn.file_link.html) with the file
- /// descriptor as the target directory.
- const FILE_LINK_TARGET = 0x0000000000002000;
- /// The right to invoke [`file_open()`](fn.file_open.html).
- const FILE_OPEN = 0x0000000000004000;
- /// The right to invoke [`file_readdir()`](fn.file_readdir.html).
- const FILE_READDIR = 0x0000000000008000;
- /// The right to invoke [`file_readlink()`](fn.file_readlink.html).
- const FILE_READLINK = 0x0000000000010000;
- /// The right to invoke [`file_rename()`](fn.file_rename.html) with the file
- /// descriptor as the source directory.
- const FILE_RENAME_SOURCE = 0x0000000000020000;
- /// The right to invoke [`file_rename()`](fn.file_rename.html) with the file
- /// descriptor as the target directory.
- const FILE_RENAME_TARGET = 0x0000000000040000;
- /// The right to invoke [`file_stat_fget()`](fn.file_stat_fget.html).
- const FILE_STAT_FGET = 0x0000000000080000;
- /// The right to invoke [`file_stat_fput()`](fn.file_stat_fput.html) with
- /// [`SIZE`](struct.fsflags.html#associatedconstant.SIZE).
- ///
- /// If [`FILE_OPEN`](struct.rights.html#associatedconstant.FILE_OPEN) is set, includes the right to
- /// invoke [`file_open()`](fn.file_open.html) with [`TRUNC`](struct.oflags.html#associatedconstant.TRUNC).
- const FILE_STAT_FPUT_SIZE = 0x0000000000100000;
- /// The right to invoke [`file_stat_fput()`](fn.file_stat_fput.html) with
- /// [`ATIM`](struct.fsflags.html#associatedconstant.ATIM), [`ATIM_NOW`](struct.fsflags.html#associatedconstant.ATIM_NOW), [`MTIM`](struct.fsflags.html#associatedconstant.MTIM),
- /// and [`MTIM_NOW`](struct.fsflags.html#associatedconstant.MTIM_NOW).
- const FILE_STAT_FPUT_TIMES = 0x0000000000200000;
- /// The right to invoke [`file_stat_get()`](fn.file_stat_get.html).
- const FILE_STAT_GET = 0x0000000000400000;
- /// The right to invoke [`file_stat_put()`](fn.file_stat_put.html) with
- /// [`ATIM`](struct.fsflags.html#associatedconstant.ATIM), [`ATIM_NOW`](struct.fsflags.html#associatedconstant.ATIM_NOW), [`MTIM`](struct.fsflags.html#associatedconstant.MTIM),
- /// and [`MTIM_NOW`](struct.fsflags.html#associatedconstant.MTIM_NOW).
- const FILE_STAT_PUT_TIMES = 0x0000000000800000;
- /// The right to invoke [`file_symlink()`](fn.file_symlink.html).
- const FILE_SYMLINK = 0x0000000001000000;
- /// The right to invoke [`file_unlink()`](fn.file_unlink.html).
- const FILE_UNLINK = 0x0000000002000000;
- /// The right to invoke [`mem_map()`](fn.mem_map.html) with [`mprot`] set to
- /// zero.
- const MEM_MAP = 0x0000000004000000;
- /// If [`MEM_MAP`](struct.rights.html#associatedconstant.MEM_MAP) is set, the right to invoke
- /// [`mem_map()`](fn.mem_map.html) with [`EXEC`](struct.mprot.html#associatedconstant.EXEC).
- const MEM_MAP_EXEC = 0x0000000008000000;
- /// If [`FD_READ`](struct.rights.html#associatedconstant.FD_READ) is set, includes the right to
- /// invoke [`poll()`](fn.poll.html) to subscribe to [`FD_READ`](enum.eventtype.html#variant.FD_READ).
- ///
- /// If [`FD_WRITE`](struct.rights.html#associatedconstant.FD_WRITE) is set, includes the right to
- /// invoke [`poll()`](fn.poll.html) to subscribe to [`FD_WRITE`](enum.eventtype.html#variant.FD_WRITE).
- const POLL_FD_READWRITE = 0x0000000010000000;
- /// The right to invoke [`poll()`](fn.poll.html) to subscribe to
- /// [`PROC_TERMINATE`](enum.eventtype.html#variant.PROC_TERMINATE).
- const POLL_PROC_TERMINATE = 0x0000000040000000;
- /// The right to invoke [`proc_exec()`](fn.proc_exec.html).
- const PROC_EXEC = 0x0000000100000000;
- /// The right to invoke [`sock_shutdown()`](fn.sock_shutdown.html).
- const SOCK_SHUTDOWN = 0x0000008000000000;
- }
-}
-
-bitflags! {
- /// Flags returned by [`sock_recv()`](fn.sock_recv.html).
- #[repr(C)]
- pub struct roflags: u16 {
- /// Returned by [`sock_recv()`](fn.sock_recv.html): List of file descriptors
- /// has been truncated.
- const FDS_TRUNCATED = 0x0001;
- /// Returned by [`sock_recv()`](fn.sock_recv.html): Message data has been
- /// truncated.
- const DATA_TRUNCATED = 0x0008;
- }
-}
-
-/// Indicates whether an object is stored in private or shared
-/// memory.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum scope {
- /// The object is stored in private memory.
- PRIVATE = 4,
- /// The object is stored in shared memory.
- SHARED = 8,
-}
-
-bitflags! {
- /// Which channels on a socket need to be shut down.
- #[repr(C)]
- pub struct sdflags: u8 {
- /// Disables further receive operations.
- const RD = 0x01;
- /// Disables further send operations.
- const WR = 0x02;
- }
-}
-
-bitflags! {
- /// Flags provided to [`sock_send()`](fn.sock_send.html). As there are currently no flags
- /// defined, it must be set to zero.
- #[repr(C)]
- pub struct siflags: u16 {
- const DEFAULT = 0;
- }
-}
-
-/// Signal condition.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum signal {
- /// Process abort signal.
- ///
- /// Action: Terminates the process.
- ABRT = 1,
- /// Alarm clock.
- ///
- /// Action: Terminates the process.
- ALRM = 2,
- /// Access to an undefined portion of a memory object.
- ///
- /// Action: Terminates the process.
- BUS = 3,
- /// Child process terminated, stopped, or continued.
- ///
- /// Action: Ignored.
- CHLD = 4,
- /// Continue executing, if stopped.
- ///
- /// Action: Continues executing, if stopped.
- CONT = 5,
- /// Erroneous arithmetic operation.
- ///
- /// Action: Terminates the process.
- FPE = 6,
- /// Hangup.
- ///
- /// Action: Terminates the process.
- HUP = 7,
- /// Illegal instruction.
- ///
- /// Action: Terminates the process.
- ILL = 8,
- /// Terminate interrupt signal.
- ///
- /// Action: Terminates the process.
- INT = 9,
- /// Kill.
- ///
- /// Action: Terminates the process.
- KILL = 10,
- /// Write on a pipe with no one to read it.
- ///
- /// Action: Ignored.
- PIPE = 11,
- /// Terminal quit signal.
- ///
- /// Action: Terminates the process.
- QUIT = 12,
- /// Invalid memory reference.
- ///
- /// Action: Terminates the process.
- SEGV = 13,
- /// Stop executing.
- ///
- /// Action: Stops executing.
- STOP = 14,
- /// Bad system call.
- ///
- /// Action: Terminates the process.
- SYS = 15,
- /// Termination signal.
- ///
- /// Action: Terminates the process.
- TERM = 16,
- /// Trace/breakpoint trap.
- ///
- /// Action: Terminates the process.
- TRAP = 17,
- /// Terminal stop signal.
- ///
- /// Action: Stops executing.
- TSTP = 18,
- /// Background process attempting read.
- ///
- /// Action: Stops executing.
- TTIN = 19,
- /// Background process attempting write.
- ///
- /// Action: Stops executing.
- TTOU = 20,
- /// High bandwidth data is available at a socket.
- ///
- /// Action: Ignored.
- URG = 21,
- /// User-defined signal 1.
- ///
- /// Action: Terminates the process.
- USR1 = 22,
- /// User-defined signal 2.
- ///
- /// Action: Terminates the process.
- USR2 = 23,
- /// Virtual timer expired.
- ///
- /// Action: Terminates the process.
- VTALRM = 24,
- /// CPU time limit exceeded.
- ///
- /// Action: Terminates the process.
- XCPU = 25,
- /// File size limit exceeded.
- ///
- /// Action: Terminates the process.
- XFSZ = 26,
-}
-
-bitflags! {
- /// Flags determining how the timestamp provided in
- /// [`subscription.union.clock.timeout`](struct.subscription_clock.html#structfield.timeout) should be interpreted.
- #[repr(C)]
- pub struct subclockflags: u16 {
- /// If set, treat the timestamp provided in
- /// [`subscription.union.clock.timeout`](struct.subscription_clock.html#structfield.timeout) as an absolute timestamp
- /// of clock [`subscription.union.clock.clock_id`](struct.subscription_clock.html#structfield.clock_id).
- ///
- /// If clear, treat the timestamp provided in
- /// [`subscription.union.clock.timeout`](struct.subscription_clock.html#structfield.timeout) relative to the current
- /// time value of clock [`subscription.union.clock.clock_id`](struct.subscription_clock.html#structfield.clock_id).
- const ABSTIME = 0x0001;
- }
-}
-
-bitflags! {
- /// Flags influencing the method of polling for read or writing on
- /// a file descriptor.
- #[repr(C)]
- pub struct subrwflags: u16 {
- /// Deprecated. Must be set by callers and ignored by
- /// implementations.
- const POLL = 0x0001;
- }
-}
-
-/// Unique system-local identifier of a thread. This identifier is
-/// only valid during the lifetime of the thread.
-///
-/// Threads must be aware of their thread identifier, as it is
-/// written it into locks when acquiring them for writing. It is
-/// not advised to use these identifiers for any other purpose.
-///
-/// As the thread identifier is also stored in [`lock`] when
-/// [`LOCK_WRLOCKED`](constant.LOCK_WRLOCKED.html) is set, the top two bits of the thread
-/// must always be set to zero.
-#[repr(C)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-pub struct tid(pub u32);
-
-/// Timestamp in nanoseconds.
-pub type timestamp = u64;
-
-bitflags! {
- /// Specifies whether files are unlinked or directories are
- /// removed.
- #[repr(C)]
- pub struct ulflags: u8 {
- /// If set, removes a directory. Otherwise, unlinks any
- /// non-directory file.
- const REMOVEDIR = 0x01;
- }
-}
-
-/// User-provided value that can be attached to objects that is
-/// retained when extracted from the kernel.
-pub type userdata = u64;
-
-/// Relative to which position the offset of the file descriptor
-/// should be set.
-#[repr(u8)]
-#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
-#[non_exhaustive]
-pub enum whence {
- /// Seek relative to current position.
- CUR = 1,
- /// Seek relative to end-of-file.
- END = 2,
- /// Seek relative to start-of-file.
- SET = 3,
-}
-
-/// Auxiliary vector entry.
-///
-/// The auxiliary vector is a list of key-value pairs that is
-/// provided to the process on startup. Unlike structures, it is
-/// extensible, as it is possible to add new records later on.
-/// The auxiliary vector is always terminated by an entry having
-/// type [`NULL`](enum.auxtype.html#variant.NULL).
-///
-/// The auxiliary vector is part of the x86-64 ABI, but is used by
-/// this environment on all architectures.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct auxv {
- /// The type of the auxiliary vector entry.
- pub a_type: auxtype,
- pub union: auxv_union,
-}
-/// A union inside `auxv`.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub union auxv_union {
- /// Used when `a_type` is [`ARGDATALEN`](enum.auxtype.html#variant.ARGDATALEN), [`CANARYLEN`](enum.auxtype.html#variant.CANARYLEN), [`NCPUS`](enum.auxtype.html#variant.NCPUS), [`PAGESZ`](enum.auxtype.html#variant.PAGESZ), [`PHNUM`](enum.auxtype.html#variant.PHNUM), or [`TID`](enum.auxtype.html#variant.TID).
- /// A numerical value.
- pub a_val: usize,
- /// Used when `a_type` is [`ARGDATA`](enum.auxtype.html#variant.ARGDATA), [`BASE`](enum.auxtype.html#variant.BASE), [`CANARY`](enum.auxtype.html#variant.CANARY), [`PHDR`](enum.auxtype.html#variant.PHDR), [`PID`](enum.auxtype.html#variant.PID), or [`SYSINFO_EHDR`](enum.auxtype.html#variant.SYSINFO_EHDR).
- /// A pointer value.
- pub a_ptr: *mut (),
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn auxv_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: auxv = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.a_type as *const _ as usize - base, 0);
- assert_eq!(&obj.union.a_val as *const _ as usize - base, 4);
- assert_eq!(&obj.union.a_ptr as *const _ as usize - base, 4);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn auxv_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 16);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: auxv = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.a_type as *const _ as usize - base, 0);
- assert_eq!(&obj.union.a_val as *const _ as usize - base, 8);
- assert_eq!(&obj.union.a_ptr as *const _ as usize - base, 8);
- }
-}
-
-/// A region of memory for scatter/gather writes.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct ciovec {
- /// The address and length of the buffer to be written.
- pub buf: (*const (), usize),
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn ciovec_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: ciovec = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.buf.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.buf.1 as *const _ as usize - base, 4);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn ciovec_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 16);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: ciovec = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.buf.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.buf.1 as *const _ as usize - base, 8);
- }
-}
-
-/// A directory entry.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct dirent {
- /// The offset of the next directory entry stored in this
- /// directory.
- pub d_next: dircookie,
- /// The serial number of the file referred to by this
- /// directory entry.
- pub d_ino: inode,
- /// The length of the name of the directory entry.
- pub d_namlen: u32,
- /// The type of the file referred to by this directory
- /// entry.
- pub d_type: filetype,
-}
-#[test]
-fn dirent_layout_test() {
- assert_eq!(core::mem::size_of::(), 24);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: dirent = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.d_next as *const _ as usize - base, 0);
- assert_eq!(&obj.d_ino as *const _ as usize - base, 8);
- assert_eq!(&obj.d_namlen as *const _ as usize - base, 16);
- assert_eq!(&obj.d_type as *const _ as usize - base, 20);
- }
-}
-
-/// An event that occurred.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct event {
- /// User-provided value that got attached to
- /// [`subscription.userdata`](struct.subscription.html#structfield.userdata).
- pub userdata: userdata,
- /// If non-zero, an error that occurred while processing
- /// the subscription request.
- pub error: errno,
- /// The type of the event that occurred.
- pub type_: eventtype,
- pub union: event_union,
-}
-/// A union inside `event`.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub union event_union {
- /// Used when `type_` is [`FD_READ`](enum.eventtype.html#variant.FD_READ) or [`FD_WRITE`](enum.eventtype.html#variant.FD_WRITE).
- pub fd_readwrite: event_fd_readwrite,
- /// Used when `type_` is [`PROC_TERMINATE`](enum.eventtype.html#variant.PROC_TERMINATE).
- pub proc_terminate: event_proc_terminate,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct event_fd_readwrite {
- /// The number of bytes available
- /// for reading or writing.
- pub nbytes: filesize,
- /// Obsolete.
- pub unused: [u8; 4],
- /// The state of the file
- /// descriptor.
- pub flags: eventrwflags,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct event_proc_terminate {
- /// Obsolete.
- pub unused: [u8; 4],
- /// If zero, the process has
- /// exited.
- /// Otherwise, the signal
- /// condition causing it to
- /// terminated.
- pub signal: signal,
- /// If exited, the exit code of
- /// the process.
- pub exitcode: exitcode,
-}
-#[test]
-fn event_layout_test() {
- assert_eq!(core::mem::size_of::(), 32);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: event = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.userdata as *const _ as usize - base, 0);
- assert_eq!(&obj.error as *const _ as usize - base, 8);
- assert_eq!(&obj.type_ as *const _ as usize - base, 10);
- assert_eq!(&obj.union.fd_readwrite.nbytes as *const _ as usize - base, 16);
- assert_eq!(&obj.union.fd_readwrite.unused as *const _ as usize - base, 24);
- assert_eq!(&obj.union.fd_readwrite.flags as *const _ as usize - base, 28);
- assert_eq!(&obj.union.proc_terminate.unused as *const _ as usize - base, 16);
- assert_eq!(&obj.union.proc_terminate.signal as *const _ as usize - base, 20);
- assert_eq!(&obj.union.proc_terminate.exitcode as *const _ as usize - base, 24);
- }
-}
-
-/// File descriptor attributes.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct fdstat {
- /// File type.
- pub fs_filetype: filetype,
- /// File descriptor flags.
- pub fs_flags: fdflags,
- /// Rights that apply to this file descriptor.
- pub fs_rights_base: rights,
- /// Maximum set of rights that can be installed on new
- /// file descriptors that are created through this file
- /// descriptor, e.g., through [`file_open()`](fn.file_open.html).
- pub fs_rights_inheriting: rights,
-}
-#[test]
-fn fdstat_layout_test() {
- assert_eq!(core::mem::size_of::(), 24);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: fdstat = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.fs_filetype as *const _ as usize - base, 0);
- assert_eq!(&obj.fs_flags as *const _ as usize - base, 2);
- assert_eq!(&obj.fs_rights_base as *const _ as usize - base, 8);
- assert_eq!(&obj.fs_rights_inheriting as *const _ as usize - base, 16);
- }
-}
-
-/// File attributes.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct filestat {
- /// Device ID of device containing the file.
- pub st_dev: device,
- /// File serial number.
- pub st_ino: inode,
- /// File type.
- pub st_filetype: filetype,
- /// Number of hard links to the file.
- pub st_nlink: linkcount,
- /// For regular files, the file size in bytes. For
- /// symbolic links, the length in bytes of the pathname
- /// contained in the symbolic link.
- pub st_size: filesize,
- /// Last data access timestamp.
- pub st_atim: timestamp,
- /// Last data modification timestamp.
- pub st_mtim: timestamp,
- /// Last file status change timestamp.
- pub st_ctim: timestamp,
-}
-#[test]
-fn filestat_layout_test() {
- assert_eq!(core::mem::size_of::(), 56);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: filestat = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.st_dev as *const _ as usize - base, 0);
- assert_eq!(&obj.st_ino as *const _ as usize - base, 8);
- assert_eq!(&obj.st_filetype as *const _ as usize - base, 16);
- assert_eq!(&obj.st_nlink as *const _ as usize - base, 20);
- assert_eq!(&obj.st_size as *const _ as usize - base, 24);
- assert_eq!(&obj.st_atim as *const _ as usize - base, 32);
- assert_eq!(&obj.st_mtim as *const _ as usize - base, 40);
- assert_eq!(&obj.st_ctim as *const _ as usize - base, 48);
- }
-}
-
-/// A region of memory for scatter/gather reads.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct iovec {
- /// The address and length of the buffer to be filled.
- pub buf: (*mut (), usize),
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn iovec_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: iovec = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.buf.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.buf.1 as *const _ as usize - base, 4);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn iovec_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 16);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: iovec = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.buf.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.buf.1 as *const _ as usize - base, 8);
- }
-}
-
-/// Path lookup properties.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct lookup {
- /// The working directory at which the resolution of the
- /// path starts.
- pub fd: fd,
- /// Flags determining the method of how the path is
- /// resolved.
- pub flags: lookupflags,
-}
-#[test]
-fn lookup_layout_test() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: lookup = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.fd as *const _ as usize - base, 0);
- assert_eq!(&obj.flags as *const _ as usize - base, 4);
- }
-}
-
-/// Entry point for a process (`_start`).
-///
-/// **auxv**:
-/// The auxiliary vector. See [`auxv`].
-pub type processentry = unsafe extern "C" fn(auxv: *const auxv) -> ();
-
-/// Arguments of [`sock_recv()`](fn.sock_recv.html).
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct recv_in {
- /// List of scatter/gather vectors where message data
- /// should be stored.
- pub ri_data: (*const iovec, usize),
- /// Buffer where numbers of incoming file descriptors
- /// should be stored.
- pub ri_fds: (*mut fd, usize),
- /// Message flags.
- pub ri_flags: riflags,
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn recv_in_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 20);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: recv_in = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.ri_data.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.ri_data.1 as *const _ as usize - base, 4);
- assert_eq!(&obj.ri_fds.0 as *const _ as usize - base, 8);
- assert_eq!(&obj.ri_fds.1 as *const _ as usize - base, 12);
- assert_eq!(&obj.ri_flags as *const _ as usize - base, 16);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn recv_in_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 40);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: recv_in = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.ri_data.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.ri_data.1 as *const _ as usize - base, 8);
- assert_eq!(&obj.ri_fds.0 as *const _ as usize - base, 16);
- assert_eq!(&obj.ri_fds.1 as *const _ as usize - base, 24);
- assert_eq!(&obj.ri_flags as *const _ as usize - base, 32);
- }
-}
-
-/// Results of [`sock_recv()`](fn.sock_recv.html).
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct recv_out {
- /// Number of bytes stored in [`recv_in.ri_data`](struct.recv_in.html#structfield.ri_data).
- pub ro_datalen: usize,
- /// Number of file descriptors stored in [`recv_in.ri_fds`](struct.recv_in.html#structfield.ri_fds).
- pub ro_fdslen: usize,
- /// Fields that were used by previous implementations.
- pub ro_unused: [u8; 40],
- /// Message flags.
- pub ro_flags: roflags,
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn recv_out_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 52);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: recv_out = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.ro_datalen as *const _ as usize - base, 0);
- assert_eq!(&obj.ro_fdslen as *const _ as usize - base, 4);
- assert_eq!(&obj.ro_unused as *const _ as usize - base, 8);
- assert_eq!(&obj.ro_flags as *const _ as usize - base, 48);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn recv_out_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 64);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: recv_out = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.ro_datalen as *const _ as usize - base, 0);
- assert_eq!(&obj.ro_fdslen as *const _ as usize - base, 8);
- assert_eq!(&obj.ro_unused as *const _ as usize - base, 16);
- assert_eq!(&obj.ro_flags as *const _ as usize - base, 56);
- }
-}
-
-/// Arguments of [`sock_send()`](fn.sock_send.html).
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct send_in {
- /// List of scatter/gather vectors where message data
- /// should be retrieved.
- pub si_data: (*const ciovec, usize),
- /// File descriptors that need to be attached to the
- /// message.
- pub si_fds: (*const fd, usize),
- /// Message flags.
- pub si_flags: siflags,
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn send_in_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 20);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: send_in = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.si_data.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.si_data.1 as *const _ as usize - base, 4);
- assert_eq!(&obj.si_fds.0 as *const _ as usize - base, 8);
- assert_eq!(&obj.si_fds.1 as *const _ as usize - base, 12);
- assert_eq!(&obj.si_flags as *const _ as usize - base, 16);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn send_in_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 40);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: send_in = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.si_data.0 as *const _ as usize - base, 0);
- assert_eq!(&obj.si_data.1 as *const _ as usize - base, 8);
- assert_eq!(&obj.si_fds.0 as *const _ as usize - base, 16);
- assert_eq!(&obj.si_fds.1 as *const _ as usize - base, 24);
- assert_eq!(&obj.si_flags as *const _ as usize - base, 32);
- }
-}
-
-/// Results of [`sock_send()`](fn.sock_send.html).
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct send_out {
- /// Number of bytes transmitted.
- pub so_datalen: usize,
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn send_out_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 4);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: send_out = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.so_datalen as *const _ as usize - base, 0);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn send_out_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: send_out = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.so_datalen as *const _ as usize - base, 0);
- }
-}
-
-/// Subscription to an event.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription {
- /// User-provided value that is attached to the
- /// subscription in the kernel and returned through
- /// [`event.userdata`](struct.event.html#structfield.userdata).
- pub userdata: userdata,
- /// Used by previous implementations. Ignored.
- pub unused: u16,
- /// The type of the event to which to subscribe.
- ///
- /// Currently, [`CONDVAR`](enum.eventtype.html#variant.CONDVAR),
- /// [`LOCK_RDLOCK`](enum.eventtype.html#variant.LOCK_RDLOCK), and [`LOCK_WRLOCK`](enum.eventtype.html#variant.LOCK_WRLOCK)
- /// must be provided as the first subscription and may
- /// only be followed by up to one other subscription,
- /// having type [`CLOCK`](enum.eventtype.html#variant.CLOCK).
- pub type_: eventtype,
- pub union: subscription_union,
-}
-/// A union inside `subscription`.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub union subscription_union {
- /// Used when `type_` is [`CLOCK`](enum.eventtype.html#variant.CLOCK).
- pub clock: subscription_clock,
- /// Used when `type_` is [`CONDVAR`](enum.eventtype.html#variant.CONDVAR).
- pub condvar: subscription_condvar,
- /// Used when `type_` is [`FD_READ`](enum.eventtype.html#variant.FD_READ) or [`FD_WRITE`](enum.eventtype.html#variant.FD_WRITE).
- pub fd_readwrite: subscription_fd_readwrite,
- /// Used when `type_` is [`LOCK_RDLOCK`](enum.eventtype.html#variant.LOCK_RDLOCK) or [`LOCK_WRLOCK`](enum.eventtype.html#variant.LOCK_WRLOCK).
- pub lock: subscription_lock,
- /// Used when `type_` is [`PROC_TERMINATE`](enum.eventtype.html#variant.PROC_TERMINATE).
- pub proc_terminate: subscription_proc_terminate,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription_clock {
- /// The user-defined unique
- /// identifier of the clock.
- pub identifier: userdata,
- /// The clock against which the
- /// timestamp should be compared.
- pub clock_id: clockid,
- /// The absolute or relative
- /// timestamp.
- pub timeout: timestamp,
- /// The amount of time that the
- /// kernel may wait additionally
- /// to coalesce with other events.
- pub precision: timestamp,
- /// Flags specifying whether the
- /// timeout is absolute or
- /// relative.
- pub flags: subclockflags,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription_condvar {
- /// The condition variable on
- /// which to wait to be woken up.
- pub condvar: *mut condvar,
- /// The lock that will be
- /// released while waiting.
- ///
- /// The lock will be reacquired
- /// for writing when the condition
- /// variable triggers.
- pub lock: *mut lock,
- /// Whether the condition variable
- /// is stored in private or shared
- /// memory.
- pub condvar_scope: scope,
- /// Whether the lock is stored in
- /// private or shared memory.
- pub lock_scope: scope,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription_fd_readwrite {
- /// The file descriptor on which
- /// to wait for it to become ready
- /// for reading or writing.
- pub fd: fd,
- /// Under which conditions to
- /// trigger.
- pub flags: subrwflags,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription_lock {
- /// The lock that will be acquired
- /// for reading or writing.
- pub lock: *mut lock,
- /// Whether the lock is stored in
- /// private or shared memory.
- pub lock_scope: scope,
-}
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct subscription_proc_terminate {
- /// The process descriptor on
- /// which to wait for process
- /// termination.
- pub fd: fd,
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn subscription_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 56);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: subscription = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.userdata as *const _ as usize - base, 0);
- assert_eq!(&obj.unused as *const _ as usize - base, 8);
- assert_eq!(&obj.type_ as *const _ as usize - base, 10);
- assert_eq!(&obj.union.clock.identifier as *const _ as usize - base, 16);
- assert_eq!(&obj.union.clock.clock_id as *const _ as usize - base, 24);
- assert_eq!(&obj.union.clock.timeout as *const _ as usize - base, 32);
- assert_eq!(&obj.union.clock.precision as *const _ as usize - base, 40);
- assert_eq!(&obj.union.clock.flags as *const _ as usize - base, 48);
- assert_eq!(&obj.union.condvar.condvar as *const _ as usize - base, 16);
- assert_eq!(&obj.union.condvar.lock as *const _ as usize - base, 20);
- assert_eq!(&obj.union.condvar.condvar_scope as *const _ as usize - base, 24);
- assert_eq!(&obj.union.condvar.lock_scope as *const _ as usize - base, 25);
- assert_eq!(&obj.union.fd_readwrite.fd as *const _ as usize - base, 16);
- assert_eq!(&obj.union.fd_readwrite.flags as *const _ as usize - base, 20);
- assert_eq!(&obj.union.lock.lock as *const _ as usize - base, 16);
- assert_eq!(&obj.union.lock.lock_scope as *const _ as usize - base, 20);
- assert_eq!(&obj.union.proc_terminate.fd as *const _ as usize - base, 16);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn subscription_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 56);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: subscription = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.userdata as *const _ as usize - base, 0);
- assert_eq!(&obj.unused as *const _ as usize - base, 8);
- assert_eq!(&obj.type_ as *const _ as usize - base, 10);
- assert_eq!(&obj.union.clock.identifier as *const _ as usize - base, 16);
- assert_eq!(&obj.union.clock.clock_id as *const _ as usize - base, 24);
- assert_eq!(&obj.union.clock.timeout as *const _ as usize - base, 32);
- assert_eq!(&obj.union.clock.precision as *const _ as usize - base, 40);
- assert_eq!(&obj.union.clock.flags as *const _ as usize - base, 48);
- assert_eq!(&obj.union.condvar.condvar as *const _ as usize - base, 16);
- assert_eq!(&obj.union.condvar.lock as *const _ as usize - base, 24);
- assert_eq!(&obj.union.condvar.condvar_scope as *const _ as usize - base, 32);
- assert_eq!(&obj.union.condvar.lock_scope as *const _ as usize - base, 33);
- assert_eq!(&obj.union.fd_readwrite.fd as *const _ as usize - base, 16);
- assert_eq!(&obj.union.fd_readwrite.flags as *const _ as usize - base, 20);
- assert_eq!(&obj.union.lock.lock as *const _ as usize - base, 16);
- assert_eq!(&obj.union.lock.lock_scope as *const _ as usize - base, 24);
- assert_eq!(&obj.union.proc_terminate.fd as *const _ as usize - base, 16);
- }
-}
-
-/// The Thread Control Block (TCB).
-///
-/// After a thread begins execution (at program startup or when
-/// created through [`thread_create()`](fn.thread_create.html)), the CPU's registers
-/// controlling Thread-Local Storage (TLS) will already be
-/// initialized. They will point to an area only containing the
-/// TCB.
-///
-/// If the thread needs space for storing thread-specific
-/// variables, the thread may allocate a larger area and adjust
-/// the CPU's registers to point to that area instead. However, it
-/// does need to make sure that the TCB is copied over to the new
-/// TLS area.
-///
-/// The purpose of the TCB is that it allows light-weight
-/// emulators to store information related to individual threads.
-/// For example, it may be used to store a copy of the CPU
-/// registers prior emulation, so that TLS for the host system
-/// can be restored if needed.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct tcb {
- /// Pointer that may be freely assigned by the system. Its
- /// value cannot be interpreted by the application.
- pub parent: *mut (),
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn tcb_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 4);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: tcb = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.parent as *const _ as usize - base, 0);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn tcb_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 8);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: tcb = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.parent as *const _ as usize - base, 0);
- }
-}
-
-/// Entry point for additionally created threads.
-///
-/// `tid`: thread ID of the current thread.
-///
-/// `aux`: copy of the value stored in
-/// [`threadattr.argument`](struct.threadattr.html#structfield.argument).
-pub type threadentry = unsafe extern "C" fn(tid: tid, aux: *mut ()) -> ();
-
-/// Attributes for thread creation.
-#[repr(C)]
-#[derive(Copy, Clone)]
-pub struct threadattr {
- /// Initial program counter value.
- pub entry_point: threadentry,
- /// Region allocated to serve as stack space.
- pub stack: (*mut (), usize),
- /// Argument to be forwarded to the entry point function.
- pub argument: *mut (),
-}
-#[test]
-#[cfg(target_pointer_width = "32")]
-fn threadattr_layout_test_32() {
- assert_eq!(core::mem::size_of::(), 16);
- assert_eq!(core::mem::align_of::(), 4);
- unsafe {
- let obj: threadattr = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.entry_point as *const _ as usize - base, 0);
- assert_eq!(&obj.stack.0 as *const _ as usize - base, 4);
- assert_eq!(&obj.stack.1 as *const _ as usize - base, 8);
- assert_eq!(&obj.argument as *const _ as usize - base, 12);
- }
-}
-#[test]
-#[cfg(target_pointer_width = "64")]
-fn threadattr_layout_test_64() {
- assert_eq!(core::mem::size_of::(), 32);
- assert_eq!(core::mem::align_of::(), 8);
- unsafe {
- let obj: threadattr = core::mem::uninitialized();
- let base = &obj as *const _ as usize;
- assert_eq!(&obj.entry_point as *const _ as usize - base, 0);
- assert_eq!(&obj.stack.0 as *const _ as usize - base, 8);
- assert_eq!(&obj.stack.1 as *const _ as usize - base, 16);
- assert_eq!(&obj.argument as *const _ as usize - base, 24);
- }
-}
-
-/// The table with pointers to all syscall implementations.
-#[allow(improper_ctypes)]
-extern "C" {
- fn cloudabi_sys_clock_res_get(_: clockid, _: *mut timestamp) -> errno;
- fn cloudabi_sys_clock_time_get(_: clockid, _: timestamp, _: *mut timestamp) -> errno;
- fn cloudabi_sys_condvar_signal(_: *mut condvar, _: scope, _: nthreads) -> errno;
- fn cloudabi_sys_fd_close(_: fd) -> errno;
- fn cloudabi_sys_fd_create1(_: filetype, _: *mut fd) -> errno;
- fn cloudabi_sys_fd_create2(_: filetype, _: *mut fd, _: *mut fd) -> errno;
- fn cloudabi_sys_fd_datasync(_: fd) -> errno;
- fn cloudabi_sys_fd_dup(_: fd, _: *mut fd) -> errno;
- fn cloudabi_sys_fd_pread(_: fd, _: *const iovec, _: usize, _: filesize, _: *mut usize)
- -> errno;
- fn cloudabi_sys_fd_pwrite(
- _: fd,
- _: *const ciovec,
- _: usize,
- _: filesize,
- _: *mut usize,
- ) -> errno;
- fn cloudabi_sys_fd_read(_: fd, _: *const iovec, _: usize, _: *mut usize) -> errno;
- fn cloudabi_sys_fd_replace(_: fd, _: fd) -> errno;
- fn cloudabi_sys_fd_seek(_: fd, _: filedelta, _: whence, _: *mut filesize) -> errno;
- fn cloudabi_sys_fd_stat_get(_: fd, _: *mut fdstat) -> errno;
- fn cloudabi_sys_fd_stat_put(_: fd, _: *const fdstat, _: fdsflags) -> errno;
- fn cloudabi_sys_fd_sync(_: fd) -> errno;
- fn cloudabi_sys_fd_write(_: fd, _: *const ciovec, _: usize, _: *mut usize) -> errno;
- fn cloudabi_sys_file_advise(_: fd, _: filesize, _: filesize, _: advice) -> errno;
- fn cloudabi_sys_file_allocate(_: fd, _: filesize, _: filesize) -> errno;
- fn cloudabi_sys_file_create(_: fd, _: *const u8, _: usize, _: filetype) -> errno;
- fn cloudabi_sys_file_link(
- _: lookup,
- _: *const u8,
- _: usize,
- _: fd,
- _: *const u8,
- _: usize,
- ) -> errno;
- fn cloudabi_sys_file_open(
- _: lookup,
- _: *const u8,
- _: usize,
- _: oflags,
- _: *const fdstat,
- _: *mut fd,
- ) -> errno;
- fn cloudabi_sys_file_readdir(_: fd, _: *mut (), _: usize, _: dircookie, _: *mut usize)
- -> errno;
- fn cloudabi_sys_file_readlink(
- _: fd,
- _: *const u8,
- _: usize,
- _: *mut u8,
- _: usize,
- _: *mut usize,
- ) -> errno;
- fn cloudabi_sys_file_rename(
- _: fd,
- _: *const u8,
- _: usize,
- _: fd,
- _: *const u8,
- _: usize,
- ) -> errno;
- fn cloudabi_sys_file_stat_fget(_: fd, _: *mut filestat) -> errno;
- fn cloudabi_sys_file_stat_fput(_: fd, _: *const filestat, _: fsflags) -> errno;
- fn cloudabi_sys_file_stat_get(_: lookup, _: *const u8, _: usize, _: *mut filestat) -> errno;
- fn cloudabi_sys_file_stat_put(
- _: lookup,
- _: *const u8,
- _: usize,
- _: *const filestat,
- _: fsflags,
- ) -> errno;
- fn cloudabi_sys_file_symlink(_: *const u8, _: usize, _: fd, _: *const u8, _: usize) -> errno;
- fn cloudabi_sys_file_unlink(_: fd, _: *const u8, _: usize, _: ulflags) -> errno;
- fn cloudabi_sys_lock_unlock(_: *mut lock, _: scope) -> errno;
- fn cloudabi_sys_mem_advise(_: *mut (), _: usize, _: advice) -> errno;
- fn cloudabi_sys_mem_map(
- _: *mut (),
- _: usize,
- _: mprot,
- _: mflags,
- _: fd,
- _: filesize,
- _: *mut *mut (),
- ) -> errno;
- fn cloudabi_sys_mem_protect(_: *mut (), _: usize, _: mprot) -> errno;
- fn cloudabi_sys_mem_sync(_: *mut (), _: usize, _: msflags) -> errno;
- fn cloudabi_sys_mem_unmap(_: *mut (), _: usize) -> errno;
- fn cloudabi_sys_poll(_: *const subscription, _: *mut event, _: usize, _: *mut usize) -> errno;
- fn cloudabi_sys_proc_exec(_: fd, _: *const (), _: usize, _: *const fd, _: usize) -> errno;
- fn cloudabi_sys_proc_exit(_: exitcode) -> !;
- fn cloudabi_sys_proc_fork(_: *mut fd, _: *mut tid) -> errno;
- fn cloudabi_sys_proc_raise(_: signal) -> errno;
- fn cloudabi_sys_random_get(_: *mut (), _: usize) -> errno;
- fn cloudabi_sys_sock_recv(_: fd, _: *const recv_in, _: *mut recv_out) -> errno;
- fn cloudabi_sys_sock_send(_: fd, _: *const send_in, _: *mut send_out) -> errno;
- fn cloudabi_sys_sock_shutdown(_: fd, _: sdflags) -> errno;
- fn cloudabi_sys_thread_create(_: *mut threadattr, _: *mut tid) -> errno;
- fn cloudabi_sys_thread_exit(_: *mut lock, _: scope) -> !;
- fn cloudabi_sys_thread_yield() -> errno;
-}
-
-/// Obtains the resolution of a clock.
-///
-/// ## Parameters
-///
-/// **clock_id**:
-/// The clock for which the resolution needs to be
-/// returned.
-///
-/// **resolution**:
-/// The resolution of the clock.
-#[inline]
-pub unsafe fn clock_res_get(clock_id_: clockid, resolution_: &mut timestamp) -> errno {
- unsafe { cloudabi_sys_clock_res_get(clock_id_, resolution_) }
-}
-
-/// Obtains the time value of a clock.
-///
-/// ## Parameters
-///
-/// **clock_id**:
-/// The clock for which the time needs to be
-/// returned.
-///
-/// **precision**:
-/// The maximum lag (exclusive) that the returned
-/// time value may have, compared to its actual
-/// value.
-///
-/// **time**:
-/// The time value of the clock.
-#[inline]
-pub unsafe fn clock_time_get(
- clock_id_: clockid,
- precision_: timestamp,
- time_: *mut timestamp,
-) -> errno {
- unsafe { cloudabi_sys_clock_time_get(clock_id_, precision_, time_) }
-}
-
-/// Wakes up threads waiting on a userspace condition variable.
-///
-/// If an invocation of this system call causes all waiting
-/// threads to be woken up, the value of the condition variable
-/// is set to [`CONDVAR_HAS_NO_WAITERS`](constant.CONDVAR_HAS_NO_WAITERS.html). As long as the condition
-/// variable is set to this value, it is not needed to invoke this
-/// system call.
-///
-/// ## Parameters
-///
-/// **condvar**:
-/// The userspace condition variable that has
-/// waiting threads.
-///
-/// **scope**:
-/// Whether the condition variable is stored in
-/// private or shared memory.
-///
-/// **nwaiters**:
-/// The number of threads that need to be woken
-/// up. If it exceeds the number of waiting
-/// threads, all threads are woken up.
-#[inline]
-pub unsafe fn condvar_signal(condvar_: *mut condvar, scope_: scope, nwaiters_: nthreads) -> errno {
- unsafe { cloudabi_sys_condvar_signal(condvar_, scope_, nwaiters_) }
-}
-
-/// Closes a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor that needs to be closed.
-#[inline]
-pub unsafe fn fd_close(fd_: fd) -> errno {
- unsafe { cloudabi_sys_fd_close(fd_) }
-}
-
-/// Creates a file descriptor.
-///
-/// ## Parameters
-///
-/// **type**:
-/// Possible values:
-///
-/// - [`SHARED_MEMORY`](enum.filetype.html#variant.SHARED_MEMORY):
-/// Creates an anonymous shared memory
-/// object.
-///
-/// **fd**:
-/// The file descriptor that has been created.
-#[inline]
-pub unsafe fn fd_create1(type_: filetype, fd_: &mut fd) -> errno {
- unsafe { cloudabi_sys_fd_create1(type_, fd_) }
-}
-
-/// Creates a pair of file descriptors.
-///
-/// ## Parameters
-///
-/// **type**:
-/// Possible values:
-///
-/// - [`SOCKET_DGRAM`](enum.filetype.html#variant.SOCKET_DGRAM):
-/// Creates a UNIX datagram socket pair.
-/// - [`SOCKET_STREAM`](enum.filetype.html#variant.SOCKET_STREAM):
-/// Creates a UNIX byte-stream socket
-/// pair.
-///
-/// **fd1**:
-/// The first file descriptor of the pair.
-///
-/// **fd2**:
-/// The second file descriptor of the pair.
-#[inline]
-pub unsafe fn fd_create2(type_: filetype, fd1_: &mut fd, fd2_: &mut fd) -> errno {
- // SAFETY: the caller must uphold the safety contract for `cloudabi_sys_fd_create2`.
- unsafe { cloudabi_sys_fd_create2(type_, fd1_, fd2_) }
-}
-
-/// Synchronizes the data of a file to disk.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor of the file whose data
-/// needs to be synchronized to disk.
-#[inline]
-pub unsafe fn fd_datasync(fd_: fd) -> errno {
- // SAFETY: the caller must guarantee that `fd` is valid
- // for synchronization.
- unsafe { cloudabi_sys_fd_datasync(fd_) }
-}
-
-/// Duplicates a file descriptor.
-///
-/// ## Parameters
-///
-/// **from**:
-/// The file descriptor that needs to be
-/// duplicated.
-///
-/// **fd**:
-/// The new file descriptor.
-#[inline]
-pub unsafe fn fd_dup(from_: fd, fd_: &mut fd) -> errno {
- unsafe { cloudabi_sys_fd_dup(from_, fd_) }
-}
-
-/// Reads from a file descriptor, without using and updating the
-/// file descriptor's offset.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor from which data should be
-/// read.
-///
-/// **iovs**:
-/// List of scatter/gather vectors where data
-/// should be stored.
-///
-/// **offset**:
-/// The offset within the file at which reading
-/// should start.
-///
-/// **nread**:
-/// The number of bytes read.
-#[inline]
-pub unsafe fn fd_pread(fd_: fd, iovs_: &[iovec], offset_: filesize, nread_: &mut usize) -> errno {
- unsafe { cloudabi_sys_fd_pread(fd_, iovs_.as_ptr(), iovs_.len(), offset_, nread_) }
-}
-
-/// Writes to a file descriptor, without using and updating the
-/// file descriptor's offset.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor to which data should be
-/// written.
-///
-/// **iovs**:
-/// List of scatter/gather vectors where data
-/// should be retrieved.
-///
-/// **offset**:
-/// The offset within the file at which writing
-/// should start.
-///
-/// **nwritten**:
-/// The number of bytes written.
-#[inline]
-pub unsafe fn fd_pwrite(
- fd_: fd,
- iovs_: &[ciovec],
- offset_: filesize,
- nwritten_: &mut usize,
-) -> errno {
- unsafe { cloudabi_sys_fd_pwrite(fd_, iovs_.as_ptr(), iovs_.len(), offset_, nwritten_) }
-}
-
-/// Reads from a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor from which data should be
-/// read.
-///
-/// **iovs**:
-/// List of scatter/gather vectors where data
-/// should be stored.
-///
-/// **nread**:
-/// The number of bytes read.
-#[inline]
-pub unsafe fn fd_read(fd_: fd, iovs_: &[iovec], nread_: &mut usize) -> errno {
- unsafe { cloudabi_sys_fd_read(fd_, iovs_.as_ptr(), iovs_.len(), nread_) }
-}
-
-/// Atomically replaces a file descriptor by a copy of another
-/// file descriptor.
-///
-/// Due to the strong focus on thread safety, this environment
-/// does not provide a mechanism to duplicate a file descriptor to
-/// an arbitrary number, like dup2(). This would be prone to race
-/// conditions, as an actual file descriptor with the same number
-/// could be allocated by a different thread at the same time.
-///
-/// This system call provides a way to atomically replace file
-/// descriptors, which would disappear if dup2() were to be
-/// removed entirely.
-///
-/// ## Parameters
-///
-/// **from**:
-/// The file descriptor that needs to be copied.
-///
-/// **to**:
-/// The file descriptor that needs to be
-/// overwritten.
-#[inline]
-pub unsafe fn fd_replace(from_: fd, to_: fd) -> errno {
- unsafe { cloudabi_sys_fd_replace(from_, to_) }
-}
-
-/// Moves the offset of the file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor whose offset has to be
-/// moved.
-///
-/// **offset**:
-/// The number of bytes to move.
-///
-/// **whence**:
-/// Relative to which position the move should
-/// take place.
-///
-/// **newoffset**:
-/// The new offset of the file descriptor,
-/// relative to the start of the file.
-#[inline]
-pub unsafe fn fd_seek(
- fd_: fd,
- offset_: filedelta,
- whence_: whence,
- newoffset_: &mut filesize,
-) -> errno {
- unsafe { cloudabi_sys_fd_seek(fd_, offset_, whence_, newoffset_) }
-}
-
-/// Gets attributes of a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor whose attributes have to
-/// be obtained.
-///
-/// **buf**:
-/// The buffer where the file descriptor's
-/// attributes are stored.
-#[inline]
-pub unsafe fn fd_stat_get(fd_: fd, buf_: *mut fdstat) -> errno {
- unsafe { cloudabi_sys_fd_stat_get(fd_, buf_) }
-}
-
-/// Adjusts attributes of a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor whose attributes have to
-/// be adjusted.
-///
-/// **buf**:
-/// The desired values of the file descriptor
-/// attributes that are adjusted.
-///
-/// **flags**:
-/// A bitmask indicating which attributes have to
-/// be adjusted.
-#[inline]
-pub unsafe fn fd_stat_put(fd_: fd, buf_: *const fdstat, flags_: fdsflags) -> errno {
- unsafe { cloudabi_sys_fd_stat_put(fd_, buf_, flags_) }
-}
-
-/// Synchronizes the data and metadata of a file to disk.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor of the file whose data
-/// and metadata needs to be synchronized to disk.
-#[inline]
-pub unsafe fn fd_sync(fd_: fd) -> errno {
- unsafe { cloudabi_sys_fd_sync(fd_) }
-}
-
-/// Writes to a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor to which data should be
-/// written.
-///
-/// **iovs**:
-/// List of scatter/gather vectors where data
-/// should be retrieved.
-///
-/// **nwritten**:
-/// The number of bytes written.
-#[inline]
-pub unsafe fn fd_write(fd_: fd, iovs_: &[ciovec], nwritten_: &mut usize) -> errno {
- unsafe { cloudabi_sys_fd_write(fd_, iovs_.as_ptr(), iovs_.len(), nwritten_) }
-}
-
-/// Provides file advisory information on a file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor for which to provide file
-/// advisory information.
-///
-/// **offset**:
-/// The offset within the file to which the
-/// advisory applies.
-///
-/// **len**:
-/// The length of the region to which the advisory
-/// applies.
-///
-/// **advice**:
-/// The advice.
-#[inline]
-pub unsafe fn file_advise(fd_: fd, offset_: filesize, len_: filesize, advice_: advice) -> errno {
- unsafe { cloudabi_sys_file_advise(fd_, offset_, len_, advice_) }
-}
-
-/// Forces the allocation of space in a file.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file in which the space should be
-/// allocated.
-///
-/// **offset**:
-/// The offset at which the allocation should
-/// start.
-///
-/// **len**:
-/// The length of the area that is allocated.
-#[inline]
-pub unsafe fn file_allocate(fd_: fd, offset_: filesize, len_: filesize) -> errno {
- unsafe { cloudabi_sys_file_allocate(fd_, offset_, len_) }
-}
-
-/// Creates a file of a specified type.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the file to be created starts.
-///
-/// **path**:
-/// The path at which the file should be created.
-///
-/// **type**:
-/// Possible values:
-///
-/// - [`DIRECTORY`](enum.filetype.html#variant.DIRECTORY):
-/// Creates a directory.
-#[inline]
-pub unsafe fn file_create(fd_: fd, path_: &[u8], type_: filetype) -> errno {
- unsafe { cloudabi_sys_file_create(fd_, path_.as_ptr(), path_.len(), type_)}
-}
-
-/// Creates a hard link.
-///
-/// ## Parameters
-///
-/// **fd1**:
-/// The working directory at which the resolution
-/// of the source path starts.
-///
-/// **path1**:
-/// The source path of the file that should be
-/// hard linked.
-///
-/// **fd2**:
-/// The working directory at which the resolution
-/// of the destination path starts.
-///
-/// **path2**:
-/// The destination path at which the hard link
-/// should be created.
-#[inline]
-pub unsafe fn file_link(fd1_: lookup, path1_: &[u8], fd2_: fd, path2_: &[u8]) -> errno {
- unsafe { cloudabi_sys_file_link(fd1_, path1_.as_ptr(), path1_.len(), fd2_, path2_.as_ptr(), path2_.len()) }
-}
-
-/// Opens a file.
-///
-/// ## Parameters
-///
-/// **dirfd**:
-/// The working directory at which the resolution
-/// of the file to be opened starts.
-///
-/// **path**:
-/// The path of the file that should be opened.
-///
-/// **oflags**:
-/// The method at which the file should be opened.
-///
-/// **fds**:
-/// [`fdstat.fs_rights_base`](struct.fdstat.html#structfield.fs_rights_base) and
-/// [`fdstat.fs_rights_inheriting`](struct.fdstat.html#structfield.fs_rights_inheriting) specify the
-/// initial rights of the newly created file
-/// descriptor. The operating system is allowed to
-/// return a file descriptor with fewer rights
-/// than specified, if and only if those rights do
-/// not apply to the type of file being opened.
-///
-/// [`fdstat.fs_flags`](struct.fdstat.html#structfield.fs_flags) specifies the initial flags
-/// of the file descriptor.
-///
-/// [`fdstat.fs_filetype`](struct.fdstat.html#structfield.fs_filetype) is ignored.
-///
-/// **fd**:
-/// The file descriptor of the file that has been
-/// opened.
-#[inline]
-pub unsafe fn file_open(
- dirfd_: lookup,
- path_: &[u8],
- oflags_: oflags,
- fds_: *const fdstat,
- fd_: &mut fd,
-) -> errno {
- unsafe { cloudabi_sys_file_open(dirfd_, path_.as_ptr(), path_.len(), oflags_, fds_, fd_) }
-}
-
-/// Reads directory entries from a directory.
-///
-/// When successful, the contents of the output buffer consist of
-/// a sequence of directory entries. Each directory entry consists
-/// of a [`dirent`] object, followed by [`dirent.d_namlen`](struct.dirent.html#structfield.d_namlen) bytes
-/// holding the name of the directory entry.
-///
-/// This system call fills the output buffer as much as possible,
-/// potentially truncating the last directory entry. This allows
-/// the caller to grow its read buffer size in case it's too small
-/// to fit a single large directory entry, or skip the oversized
-/// directory entry.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The directory from which to read the directory
-/// entries.
-///
-/// **buf**:
-/// The buffer where directory entries are stored.
-///
-/// **cookie**:
-/// The location within the directory to start
-/// reading.
-///
-/// **bufused**:
-/// The number of bytes stored in the read buffer.
-/// If less than the size of the read buffer, the
-/// end of the directory has been reached.
-#[inline]
-pub unsafe fn file_readdir(
- fd_: fd,
- buf_: &mut [u8],
- cookie_: dircookie,
- bufused_: &mut usize,
-) -> errno {
- unsafe { cloudabi_sys_file_readdir(fd_, buf_.as_mut_ptr() as *mut (), buf_.len(), cookie_, bufused_) }
-}
-
-/// Reads the contents of a symbolic link.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the path of the symbolic starts.
-///
-/// **path**:
-/// The path of the symbolic link whose contents
-/// should be read.
-///
-/// **buf**:
-/// The buffer where the contents of the symbolic
-/// link should be stored.
-///
-/// **bufused**:
-/// The number of bytes placed in the buffer.
-#[inline]
-pub unsafe fn file_readlink(fd_: fd, path_: &[u8], buf_: &mut [u8], bufused_: &mut usize) -> errno {
- unsafe {
- cloudabi_sys_file_readlink(
- fd_,
- path_.as_ptr(),
- path_.len(),
- buf_.as_mut_ptr(),
- buf_.len(),
- bufused_,
- )
- }
-}
-
-/// Renames a file.
-///
-/// ## Parameters
-///
-/// **fd1**:
-/// The working directory at which the resolution
-/// of the source path starts.
-///
-/// **path1**:
-/// The source path of the file that should be
-/// renamed.
-///
-/// **fd2**:
-/// The working directory at which the resolution
-/// of the destination path starts.
-///
-/// **path2**:
-/// The destination path to which the file should
-/// be renamed.
-#[inline]
-pub unsafe fn file_rename(fd1_: fd, path1_: &[u8], fd2_: fd, path2_: &[u8]) -> errno {
- unsafe {
- cloudabi_sys_file_rename(
- fd1_,
- path1_.as_ptr(),
- path1_.len(),
- fd2_,
- path2_.as_ptr(),
- path2_.len(),
- )
- }
-}
-
-/// Gets attributes of a file by file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor whose attributes have to
-/// be obtained.
-///
-/// **buf**:
-/// The buffer where the file's attributes are
-/// stored.
-#[inline]
-pub unsafe fn file_stat_fget(fd_: fd, buf_: *mut filestat) -> errno {
- unsafe { cloudabi_sys_file_stat_fget(fd_, buf_) }
-}
-
-/// Adjusts attributes of a file by file descriptor.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The file descriptor whose attributes have to
-/// be adjusted.
-///
-/// **buf**:
-/// The desired values of the file attributes that
-/// are adjusted.
-///
-/// **flags**:
-/// A bitmask indicating which attributes have to
-/// be adjusted.
-#[inline]
-pub unsafe fn file_stat_fput(fd_: fd, buf_: *const filestat, flags_: fsflags) -> errno {
- unsafe { cloudabi_sys_file_stat_fput(fd_, buf_, flags_) }
-}
-
-/// Gets attributes of a file by path.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the path whose attributes have to be
-/// obtained starts.
-///
-/// **path**:
-/// The path of the file whose attributes have to
-/// be obtained.
-///
-/// **buf**:
-/// The buffer where the file's attributes are
-/// stored.
-#[inline]
-pub unsafe fn file_stat_get(fd_: lookup, path_: &[u8], buf_: *mut filestat) -> errno {
- unsafe { cloudabi_sys_file_stat_get(fd_, path_.as_ptr(), path_.len(), buf_) }
-}
-
-/// Adjusts attributes of a file by path.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the path whose attributes have to be
-/// adjusted starts.
-///
-/// **path**:
-/// The path of the file whose attributes have to
-/// be adjusted.
-///
-/// **buf**:
-/// The desired values of the file attributes that
-/// are adjusted.
-///
-/// **flags**:
-/// A bitmask indicating which attributes have to
-/// be adjusted.
-#[inline]
-pub unsafe fn file_stat_put(
- fd_: lookup,
- path_: &[u8],
- buf_: *const filestat,
- flags_: fsflags,
-) -> errno {
- unsafe { cloudabi_sys_file_stat_put(fd_, path_.as_ptr(), path_.len(), buf_, flags_) }
-}
-
-/// Creates a symbolic link.
-///
-/// ## Parameters
-///
-/// **path1**:
-/// The contents of the symbolic link.
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the destination path starts.
-///
-/// **path2**:
-/// The destination path at which the symbolic
-/// link should be created.
-#[inline]
-pub unsafe fn file_symlink(path1_: &[u8], fd_: fd, path2_: &[u8]) -> errno {
- unsafe { cloudabi_sys_file_symlink(path1_.as_ptr(), path1_.len(), fd_, path2_.as_ptr(), path2_.len()) }
-}
-
-/// Unlinks a file, or removes a directory.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// The working directory at which the resolution
-/// of the path starts.
-///
-/// **path**:
-/// The path that needs to be unlinked or removed.
-///
-/// **flags**:
-/// Possible values:
-///
-/// - [`REMOVEDIR`](struct.ulflags.html#associatedconstant.REMOVEDIR):
-/// If set, attempt to remove a directory.
-/// Otherwise, unlink a file.
-#[inline]
-pub unsafe fn file_unlink(fd_: fd, path_: &[u8], flags_: ulflags) -> errno {
- unsafe { cloudabi_sys_file_unlink(fd_, path_.as_ptr(), path_.len(), flags_) }
-}
-
-/// Unlocks a write-locked userspace lock.
-///
-/// If a userspace lock is unlocked while having its
-/// [`LOCK_KERNEL_MANAGED`](constant.LOCK_KERNEL_MANAGED.html) flag set, the lock cannot be unlocked in
-/// userspace directly. This system call needs to be performed
-/// instead, so that any waiting threads can be woken up.
-///
-/// To prevent spurious invocations of this system call, the lock
-/// must be locked for writing. This prevents other threads from
-/// acquiring additional read locks while the system call is in
-/// progress. If the lock is acquired for reading, it must first
-/// be upgraded to a write lock.
-///
-/// ## Parameters
-///
-/// **lock**:
-/// The userspace lock that is locked for writing
-/// by the calling thread.
-///
-/// **scope**:
-/// Whether the lock is stored in private or
-/// shared memory.
-#[inline]
-pub unsafe fn lock_unlock(lock_: *mut lock, scope_: scope) -> errno {
- unsafe { cloudabi_sys_lock_unlock(lock_, scope_) }
-}
-
-/// Provides memory advisory information on a region of memory.
-///
-/// ## Parameters
-///
-/// **mapping**:
-/// The pages for which to provide memory advisory
-/// information.
-///
-/// **advice**:
-/// The advice.
-#[inline]
-pub unsafe fn mem_advise(mapping_: &mut [u8], advice_: advice) -> errno {
- unsafe { cloudabi_sys_mem_advise(mapping_.as_mut_ptr() as *mut (), mapping_.len(), advice_) }
-}
-
-/// Creates a memory mapping, making the contents of a file
-/// accessible through memory.
-///
-/// ## Parameters
-///
-/// **addr**:
-/// If [`FIXED`](struct.mflags.html#associatedconstant.FIXED) is set, specifies to which
-/// address the file region is mapped. Otherwise,
-/// the mapping is performed at an unused
-/// location.
-///
-/// **len**:
-/// The length of the memory mapping to be
-/// created.
-///
-/// **prot**:
-/// Initial memory protection options for the
-/// memory mapping.
-///
-/// **flags**:
-/// Memory mapping flags.
-///
-/// **fd**:
-/// If [`ANON`](struct.mflags.html#associatedconstant.ANON) is set, this argument must be
-/// [`MAP_ANON_FD`](constant.MAP_ANON_FD.html). Otherwise, this argument
-/// specifies the file whose contents need to be
-/// mapped.
-///
-/// **off**:
-/// If [`ANON`](struct.mflags.html#associatedconstant.ANON) is set, this argument must be
-/// zero. Otherwise, this argument specifies the
-/// offset within the file at which the mapping
-/// starts.
-///
-/// **mem**:
-/// The starting address of the memory mapping.
-#[inline]
-pub unsafe fn mem_map(
- addr_: *mut (),
- len_: usize,
- prot_: mprot,
- flags_: mflags,
- fd_: fd,
- off_: filesize,
- mem_: &mut *mut (),
-) -> errno {
- unsafe { cloudabi_sys_mem_map(addr_, len_, prot_, flags_, fd_, off_, mem_) }
-}
-
-/// Changes the protection of a memory mapping.
-///
-/// ## Parameters
-///
-/// **mapping**:
-/// The pages that need their protection changed.
-///
-/// **prot**:
-/// New protection options.
-#[inline]
-pub unsafe fn mem_protect(mapping_: &mut [u8], prot_: mprot) -> errno {
- unsafe { cloudabi_sys_mem_protect(mapping_.as_mut_ptr() as *mut (), mapping_.len(), prot_) }
-}
-
-/// Synchronizes a region of memory with its physical storage.
-///
-/// ## Parameters
-///
-/// **mapping**:
-/// The pages that need to be synchronized.
-///
-/// **flags**:
-/// The method of synchronization.
-#[inline]
-pub unsafe fn mem_sync(mapping_: &mut [u8], flags_: msflags) -> errno {
- unsafe { cloudabi_sys_mem_sync(mapping_.as_mut_ptr() as *mut (), mapping_.len(), flags_) }
-}
-
-/// Unmaps a region of memory.
-///
-/// ## Parameters
-///
-/// **mapping**:
-/// The pages that needs to be unmapped.
-#[inline]
-pub unsafe fn mem_unmap(mapping_: &mut [u8]) -> errno {
- unsafe { cloudabi_sys_mem_unmap(mapping_.as_mut_ptr() as *mut (), mapping_.len()) }
-}
-
-/// Concurrently polls for the occurrence of a set of events.
-///
-/// ## Parameters
-///
-/// **in**:
-/// The events to which to subscribe.
-///
-/// **out**:
-/// The events that have occurred.
-///
-/// **nsubscriptions**:
-/// Both the number of subscriptions and events.
-///
-/// **nevents**:
-/// The number of events stored.
-#[inline]
-pub unsafe fn poll(
- in_: *const subscription,
- out_: *mut event,
- nsubscriptions_: usize,
- nevents_: *mut usize,
-) -> errno {
- unsafe { cloudabi_sys_poll(in_, out_, nsubscriptions_, nevents_) }
-}
-
-/// Replaces the process by a new executable.
-///
-/// Process execution in CloudABI differs from POSIX in two ways:
-/// handling of arguments and inheritance of file descriptors.
-///
-/// CloudABI does not use string command line arguments. Instead,
-/// a buffer with binary data is copied into the address space of
-/// the new executable. The kernel does not enforce any specific
-/// structure to this data, although CloudABI's C library uses it
-/// to store a tree structure that is semantically identical to
-/// YAML.
-///
-/// Due to the strong focus on thread safety, file descriptors
-/// aren't inherited through close-on-exec flags. An explicit
-/// list of file descriptors that need to be retained needs to be
-/// provided. After execution, file descriptors are placed in the
-/// order in which they are stored in the array. This not only
-/// makes the execution process deterministic. It also prevents
-/// potential information disclosures about the layout of the
-/// original process.
-///
-/// ## Parameters
-///
-/// **fd**:
-/// A file descriptor of the new executable.
-///
-/// **data**:
-/// Binary argument data that is passed on to the
-/// new executable.
-///
-/// **fds**:
-/// The layout of the file descriptor table after
-/// execution.
-#[inline]
-pub unsafe fn proc_exec(fd_: fd, data_: &[u8], fds_: &[fd]) -> errno {
- unsafe { cloudabi_sys_proc_exec(fd_, data_.as_ptr() as *const (), data_.len(), fds_.as_ptr(), fds_.len()) }
-}
-
-/// Terminates the process normally.
-///
-/// ## Parameters
-///
-/// **rval**:
-/// The exit code returned by the process. The
-/// exit code can be obtained by other processes
-/// through [`event.union.proc_terminate.exitcode`](struct.event_proc_terminate.html#structfield.exitcode).
-#[inline]
-pub unsafe fn proc_exit(rval_: exitcode) -> ! {
- unsafe { cloudabi_sys_proc_exit(rval_) }
-}
-
-/// Forks the process of the calling thread.
-///
-/// After forking, a new process shall be created, having only a
-/// copy of the calling thread. The parent process will obtain a
-/// process descriptor. When closed, the child process is
-/// automatically signaled with [`KILL`](enum.signal.html#variant.KILL).
-///
-/// ## Parameters
-///
-/// **fd**:
-/// In the parent process: the file descriptor
-/// number of the process descriptor.
-///
-/// In the child process: [`PROCESS_CHILD`](constant.PROCESS_CHILD.html).
-///
-/// **tid**:
-/// In the parent process: undefined.
-///
-/// In the child process: the thread ID of the
-/// initial thread of the child process.
-#[inline]
-pub unsafe fn proc_fork(fd_: &mut fd, tid_: &mut tid) -> errno {
- unsafe { cloudabi_sys_proc_fork(fd_, tid_) }
-}
-
-/// Sends a signal to the process of the calling thread.
-///
-/// ## Parameters
-///
-/// **sig**:
-/// The signal condition that should be triggered.
-/// If the signal causes the process to terminate,
-/// its condition can be obtained by other
-/// processes through
-/// [`event.union.proc_terminate.signal`](struct.event_proc_terminate.html#structfield.signal).
-#[inline]
-pub unsafe fn proc_raise(sig_: signal) -> errno {
- unsafe { cloudabi_sys_proc_raise(sig_) }
-}
-
-/// Obtains random data from the kernel random number generator.
-///
-/// As this interface is not guaranteed to be fast, it is advised
-/// that the random data obtained through this system call is used
-/// as the seed for a userspace pseudo-random number generator.
-///
-/// ## Parameters
-///
-/// **buf**:
-/// The buffer that needs to be filled with random
-/// data.
-#[inline]
-pub unsafe fn random_get(buf_: &mut [u8]) -> errno {
- unsafe { cloudabi_sys_random_get(buf_.as_mut_ptr() as *mut (), buf_.len()) }
-}
-
-/// Receives a message on a socket.
-///
-/// ## Parameters
-///
-/// **sock**:
-/// The socket on which a message should be
-/// received.
-///
-/// **in**:
-/// Input parameters.
-///
-/// **out**:
-/// Output parameters.
-#[inline]
-pub unsafe fn sock_recv(sock_: fd, in_: *const recv_in, out_: *mut recv_out) -> errno {
- unsafe { cloudabi_sys_sock_recv(sock_, in_, out_) }
-}
-
-/// Sends a message on a socket.
-///
-/// ## Parameters
-///
-/// **sock**:
-/// The socket on which a message should be sent.
-///
-/// **in**:
-/// Input parameters.
-///
-/// **out**:
-/// Output parameters.
-#[inline]
-pub unsafe fn sock_send(sock_: fd, in_: *const send_in, out_: *mut send_out) -> errno {
- unsafe { cloudabi_sys_sock_send(sock_, in_, out_) }
-}
-
-/// Shuts down socket send and receive channels.
-///
-/// ## Parameters
-///
-/// **sock**:
-/// The socket that needs its channels shut down.
-///
-/// **how**:
-/// Which channels on the socket need to be shut
-/// down.
-#[inline]
-pub unsafe fn sock_shutdown(sock_: fd, how_: sdflags) -> errno {
- unsafe { cloudabi_sys_sock_shutdown(sock_, how_) }
-}
-
-/// Creates a new thread within the current process.
-///
-/// ## Parameters
-///
-/// **attr**:
-/// The desired attributes of the new thread.
-///
-/// **tid**:
-/// The thread ID of the new thread.
-#[inline]
-pub unsafe fn thread_create(attr_: *mut threadattr, tid_: &mut tid) -> errno {
- unsafe { cloudabi_sys_thread_create(attr_, tid_) }
-}
-
-/// Terminates the calling thread.
-///
-/// This system call can also unlock a single userspace lock
-/// after termination, which can be used to implement thread
-/// joining.
-///
-/// ## Parameters
-///
-/// **lock**:
-/// Userspace lock that is locked for writing by
-/// the calling thread.
-///
-/// **scope**:
-/// Whether the lock is stored in private or
-/// shared memory.
-#[inline]
-pub unsafe fn thread_exit(lock_: *mut lock, scope_: scope) -> ! {
- unsafe { cloudabi_sys_thread_exit(lock_, scope_) }
-}
-
-/// Temporarily yields execution of the calling thread.
-#[inline]
-pub unsafe fn thread_yield() -> errno {
- unsafe { cloudabi_sys_thread_yield() }
-}
diff --git a/library/std/src/sys/cloudabi/abi/mod.rs b/library/std/src/sys/cloudabi/abi/mod.rs
deleted file mode 100644
index 9d01d24ea83..00000000000
--- a/library/std/src/sys/cloudabi/abi/mod.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-#[allow(warnings)]
-mod cloudabi;
-pub use self::cloudabi::*;
diff --git a/library/std/src/sys/cloudabi/args.rs b/library/std/src/sys/cloudabi/args.rs
deleted file mode 100644
index dea562abad3..00000000000
--- a/library/std/src/sys/cloudabi/args.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-pub use crate::sys::cloudabi::shims::args::*;
-
-#[allow(dead_code)]
-pub fn init(_: isize, _: *const *const u8) {}
-
-#[allow(dead_code)]
-pub fn cleanup() {}
diff --git a/library/std/src/sys/cloudabi/condvar.rs b/library/std/src/sys/cloudabi/condvar.rs
deleted file mode 100644
index f09bc01701b..00000000000
--- a/library/std/src/sys/cloudabi/condvar.rs
+++ /dev/null
@@ -1,149 +0,0 @@
-use crate::mem;
-use crate::sync::atomic::{AtomicU32, Ordering};
-use crate::sys::cloudabi::abi;
-use crate::sys::mutex::{self, Mutex};
-use crate::sys::time::checked_dur2intervals;
-use crate::time::Duration;
-
-extern "C" {
- #[thread_local]
- static __pthread_thread_id: abi::tid;
-}
-
-pub struct Condvar {
- condvar: AtomicU32,
-}
-
-pub type MovableCondvar = Condvar;
-
-unsafe impl Send for Condvar {}
-unsafe impl Sync for Condvar {}
-
-impl Condvar {
- pub const fn new() -> Condvar {
- Condvar { condvar: AtomicU32::new(abi::CONDVAR_HAS_NO_WAITERS.0) }
- }
-
- pub unsafe fn init(&mut self) {}
-
- pub unsafe fn notify_one(&self) {
- if self.condvar.load(Ordering::Relaxed) != abi::CONDVAR_HAS_NO_WAITERS.0 {
- let ret = abi::condvar_signal(
- &self.condvar as *const AtomicU32 as *mut abi::condvar,
- abi::scope::PRIVATE,
- 1,
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to signal on condition variable");
- }
- }
-
- pub unsafe fn notify_all(&self) {
- if self.condvar.load(Ordering::Relaxed) != abi::CONDVAR_HAS_NO_WAITERS.0 {
- let ret = abi::condvar_signal(
- &self.condvar as *const AtomicU32 as *mut abi::condvar,
- abi::scope::PRIVATE,
- abi::nthreads::MAX,
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to broadcast on condition variable");
- }
- }
-
- pub unsafe fn wait(&self, mutex: &Mutex) {
- let mutex = mutex::raw(mutex);
- assert_eq!(
- mutex.load(Ordering::Relaxed) & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "This lock is not write-locked by this thread"
- );
-
- // Call into the kernel to wait on the condition variable.
- let subscription = abi::subscription {
- type_: abi::eventtype::CONDVAR,
- union: abi::subscription_union {
- condvar: abi::subscription_condvar {
- condvar: &self.condvar as *const AtomicU32 as *mut abi::condvar,
- condvar_scope: abi::scope::PRIVATE,
- lock: mutex as *const AtomicU32 as *mut abi::lock,
- lock_scope: abi::scope::PRIVATE,
- },
- },
- ..mem::zeroed()
- };
- let mut event: mem::MaybeUninit = mem::MaybeUninit::uninit();
- let mut nevents: mem::MaybeUninit = mem::MaybeUninit::uninit();
- let ret = abi::poll(&subscription, event.as_mut_ptr(), 1, nevents.as_mut_ptr());
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to wait on condition variable");
- assert_eq!(
- event.assume_init().error,
- abi::errno::SUCCESS,
- "Failed to wait on condition variable"
- );
- }
-
- pub unsafe fn wait_timeout(&self, mutex: &Mutex, dur: Duration) -> bool {
- let mutex = mutex::raw(mutex);
- assert_eq!(
- mutex.load(Ordering::Relaxed) & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "This lock is not write-locked by this thread"
- );
-
- // Call into the kernel to wait on the condition variable.
- let timeout =
- checked_dur2intervals(&dur).expect("overflow converting duration to nanoseconds");
- let subscriptions = [
- abi::subscription {
- type_: abi::eventtype::CONDVAR,
- union: abi::subscription_union {
- condvar: abi::subscription_condvar {
- condvar: &self.condvar as *const AtomicU32 as *mut abi::condvar,
- condvar_scope: abi::scope::PRIVATE,
- lock: mutex as *const AtomicU32 as *mut abi::lock,
- lock_scope: abi::scope::PRIVATE,
- },
- },
- ..mem::zeroed()
- },
- abi::subscription {
- type_: abi::eventtype::CLOCK,
- union: abi::subscription_union {
- clock: abi::subscription_clock {
- clock_id: abi::clockid::MONOTONIC,
- timeout,
- ..mem::zeroed()
- },
- },
- ..mem::zeroed()
- },
- ];
- let mut events: [mem::MaybeUninit; 2] = [mem::MaybeUninit::uninit(); 2];
- let mut nevents: mem::MaybeUninit = mem::MaybeUninit::uninit();
- let ret = abi::poll(
- subscriptions.as_ptr(),
- mem::MaybeUninit::slice_as_mut_ptr(&mut events),
- 2,
- nevents.as_mut_ptr(),
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to wait on condition variable");
- let nevents = nevents.assume_init();
- for i in 0..nevents {
- assert_eq!(
- events[i].assume_init().error,
- abi::errno::SUCCESS,
- "Failed to wait on condition variable"
- );
- if events[i].assume_init().type_ == abi::eventtype::CONDVAR {
- return true;
- }
- }
- false
- }
-
- pub unsafe fn destroy(&self) {
- assert_eq!(
- self.condvar.load(Ordering::Relaxed),
- abi::CONDVAR_HAS_NO_WAITERS.0,
- "Attempted to destroy a condition variable with blocked threads"
- );
- }
-}
diff --git a/library/std/src/sys/cloudabi/io.rs b/library/std/src/sys/cloudabi/io.rs
deleted file mode 100644
index d5f475b4310..00000000000
--- a/library/std/src/sys/cloudabi/io.rs
+++ /dev/null
@@ -1,47 +0,0 @@
-use crate::mem;
-
-#[derive(Copy, Clone)]
-pub struct IoSlice<'a>(&'a [u8]);
-
-impl<'a> IoSlice<'a> {
- #[inline]
- pub fn new(buf: &'a [u8]) -> IoSlice<'a> {
- IoSlice(buf)
- }
-
- #[inline]
- pub fn advance(&mut self, n: usize) {
- self.0 = &self.0[n..]
- }
-
- #[inline]
- pub fn as_slice(&self) -> &[u8] {
- self.0
- }
-}
-
-pub struct IoSliceMut<'a>(&'a mut [u8]);
-
-impl<'a> IoSliceMut<'a> {
- #[inline]
- pub fn new(buf: &'a mut [u8]) -> IoSliceMut<'a> {
- IoSliceMut(buf)
- }
-
- #[inline]
- pub fn advance(&mut self, n: usize) {
- let slice = mem::replace(&mut self.0, &mut []);
- let (_, remaining) = slice.split_at_mut(n);
- self.0 = remaining;
- }
-
- #[inline]
- pub fn as_slice(&self) -> &[u8] {
- self.0
- }
-
- #[inline]
- pub fn as_mut_slice(&mut self) -> &mut [u8] {
- self.0
- }
-}
diff --git a/library/std/src/sys/cloudabi/mod.rs b/library/std/src/sys/cloudabi/mod.rs
deleted file mode 100644
index b4a9246ca4e..00000000000
--- a/library/std/src/sys/cloudabi/mod.rs
+++ /dev/null
@@ -1,73 +0,0 @@
-#![deny(unsafe_op_in_unsafe_fn)]
-
-use crate::io::ErrorKind;
-use crate::mem;
-
-#[path = "../unix/alloc.rs"]
-pub mod alloc;
-pub mod args;
-#[path = "../unix/cmath.rs"]
-pub mod cmath;
-pub mod condvar;
-pub mod io;
-#[path = "../unix/memchr.rs"]
-pub mod memchr;
-pub mod mutex;
-pub mod os;
-pub mod rwlock;
-pub mod stack_overflow;
-pub mod stdio;
-pub mod thread;
-#[path = "../unix/thread_local_key.rs"]
-pub mod thread_local_key;
-pub mod time;
-
-pub use crate::sys_common::os_str_bytes as os_str;
-
-mod abi;
-
-mod shims;
-pub use self::shims::*;
-
-#[allow(dead_code)]
-pub fn init() {}
-
-pub fn decode_error_kind(errno: i32) -> ErrorKind {
- match errno {
- x if x == abi::errno::ACCES as i32 => ErrorKind::PermissionDenied,
- x if x == abi::errno::ADDRINUSE as i32 => ErrorKind::AddrInUse,
- x if x == abi::errno::ADDRNOTAVAIL as i32 => ErrorKind::AddrNotAvailable,
- x if x == abi::errno::AGAIN as i32 => ErrorKind::WouldBlock,
- x if x == abi::errno::CONNABORTED as i32 => ErrorKind::ConnectionAborted,
- x if x == abi::errno::CONNREFUSED as i32 => ErrorKind::ConnectionRefused,
- x if x == abi::errno::CONNRESET as i32 => ErrorKind::ConnectionReset,
- x if x == abi::errno::EXIST as i32 => ErrorKind::AlreadyExists,
- x if x == abi::errno::INTR as i32 => ErrorKind::Interrupted,
- x if x == abi::errno::INVAL as i32 => ErrorKind::InvalidInput,
- x if x == abi::errno::NOENT as i32 => ErrorKind::NotFound,
- x if x == abi::errno::NOTCONN as i32 => ErrorKind::NotConnected,
- x if x == abi::errno::PERM as i32 => ErrorKind::PermissionDenied,
- x if x == abi::errno::PIPE as i32 => ErrorKind::BrokenPipe,
- x if x == abi::errno::TIMEDOUT as i32 => ErrorKind::TimedOut,
- _ => ErrorKind::Other,
- }
-}
-
-pub fn abort_internal() -> ! {
- core::intrinsics::abort();
-}
-
-pub use libc::strlen;
-
-pub fn hashmap_random_keys() -> (u64, u64) {
- unsafe {
- let mut v: mem::MaybeUninit<(u64, u64)> = mem::MaybeUninit::uninit();
- libc::arc4random_buf(v.as_mut_ptr() as *mut libc::c_void, mem::size_of_val(&v));
- v.assume_init()
- }
-}
-
-#[cfg_attr(feature = "backtrace", link(name = "unwind"))]
-#[link(name = "c")]
-#[link(name = "compiler_rt")]
-extern "C" {}
diff --git a/library/std/src/sys/cloudabi/mutex.rs b/library/std/src/sys/cloudabi/mutex.rs
deleted file mode 100644
index 9dafcbc1fba..00000000000
--- a/library/std/src/sys/cloudabi/mutex.rs
+++ /dev/null
@@ -1,153 +0,0 @@
-use crate::cell::Cell;
-use crate::mem;
-use crate::mem::MaybeUninit;
-use crate::sync::atomic::{AtomicU32, Ordering};
-use crate::sys::cloudabi::abi;
-use crate::sys::rwlock::{self, RWLock};
-
-extern "C" {
- #[thread_local]
- static __pthread_thread_id: abi::tid;
-}
-
-// Implement Mutex using an RWLock. This doesn't introduce any
-// performance overhead in this environment, as the operations would be
-// implemented identically.
-pub struct Mutex(RWLock);
-
-pub type MovableMutex = Mutex;
-
-pub unsafe fn raw(m: &Mutex) -> &AtomicU32 {
- rwlock::raw(&m.0)
-}
-
-impl Mutex {
- pub const fn new() -> Mutex {
- Mutex(RWLock::new())
- }
-
- pub unsafe fn init(&mut self) {
- // This function should normally reinitialize the mutex after
- // moving it to a different memory address. This implementation
- // does not require adjustments after moving.
- }
-
- pub unsafe fn try_lock(&self) -> bool {
- self.0.try_write()
- }
-
- pub unsafe fn lock(&self) {
- self.0.write()
- }
-
- pub unsafe fn unlock(&self) {
- self.0.write_unlock()
- }
-
- pub unsafe fn destroy(&self) {
- self.0.destroy()
- }
-}
-
-pub struct ReentrantMutex {
- lock: AtomicU32,
- recursion: Cell,
-}
-
-unsafe impl Send for ReentrantMutex {}
-unsafe impl Sync for ReentrantMutex {}
-
-impl ReentrantMutex {
- pub const unsafe fn uninitialized() -> ReentrantMutex {
- ReentrantMutex { lock: AtomicU32::new(abi::LOCK_UNLOCKED.0), recursion: Cell::new(0) }
- }
-
- pub unsafe fn init(&self) {}
-
- pub unsafe fn try_lock(&self) -> bool {
- // Attempt to acquire the lock.
- if let Err(old) = self.lock.compare_exchange(
- abi::LOCK_UNLOCKED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- Ordering::Acquire,
- Ordering::Relaxed,
- ) {
- // If we fail to acquire the lock, it may be the case
- // that we've already acquired it and may need to recurse.
- if old & !abi::LOCK_KERNEL_MANAGED.0 == __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0 {
- self.recursion.set(self.recursion.get() + 1);
- true
- } else {
- false
- }
- } else {
- // Success.
- assert_eq!(self.recursion.get(), 0, "Mutex has invalid recursion count");
- true
- }
- }
-
- pub unsafe fn lock(&self) {
- if !self.try_lock() {
- // Call into the kernel to acquire a write lock.
- let lock = &self.lock as *const AtomicU32;
- let subscription = abi::subscription {
- type_: abi::eventtype::LOCK_WRLOCK,
- union: abi::subscription_union {
- lock: abi::subscription_lock {
- lock: lock as *mut abi::lock,
- lock_scope: abi::scope::PRIVATE,
- },
- },
- ..mem::zeroed()
- };
- let mut event = MaybeUninit::::uninit();
- let mut nevents = MaybeUninit::::uninit();
- // SAFE: The caller must to ensure that `event` and `nevents` are initialized.
- let ret =
- unsafe { abi::poll(&subscription, event.as_mut_ptr(), 1, nevents.as_mut_ptr()) };
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to acquire mutex");
- let event = event.assume_init();
- assert_eq!(event.error, abi::errno::SUCCESS, "Failed to acquire mutex");
- }
- }
-
- pub unsafe fn unlock(&self) {
- assert_eq!(
- self.lock.load(Ordering::Relaxed) & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "This mutex is locked by a different thread"
- );
-
- let r = self.recursion.get();
- if r > 0 {
- self.recursion.set(r - 1);
- } else if !self
- .lock
- .compare_exchange(
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- abi::LOCK_UNLOCKED.0,
- Ordering::Release,
- Ordering::Relaxed,
- )
- .is_ok()
- {
- // Lock is managed by kernelspace. Call into the kernel
- // to unblock waiting threads.
- let ret = abi::lock_unlock(
- &self.lock as *const AtomicU32 as *mut abi::lock,
- abi::scope::PRIVATE,
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to unlock a mutex");
- }
- }
-
- pub unsafe fn destroy(&self) {
- assert_eq!(
- self.lock.load(Ordering::Relaxed),
- abi::LOCK_UNLOCKED.0,
- "Attempted to destroy locked mutex"
- );
- assert_eq!(self.recursion.get(), 0, "Recursion counter invalid");
- }
-}
diff --git a/library/std/src/sys/cloudabi/os.rs b/library/std/src/sys/cloudabi/os.rs
deleted file mode 100644
index 326faaa852a..00000000000
--- a/library/std/src/sys/cloudabi/os.rs
+++ /dev/null
@@ -1,26 +0,0 @@
-use crate::ffi::CStr;
-use crate::str;
-
-use libc::c_int;
-
-pub use crate::sys::cloudabi::shims::os::*;
-
-pub fn errno() -> i32 {
- extern "C" {
- #[thread_local]
- static errno: c_int;
- }
-
- unsafe { errno as i32 }
-}
-
-/// Gets a detailed string description for the given error number.
-pub fn error_string(errno: i32) -> String {
- // cloudlibc's strerror() is guaranteed to be thread-safe. There is
- // thus no need to use strerror_r().
- str::from_utf8(unsafe { CStr::from_ptr(libc::strerror(errno)) }.to_bytes()).unwrap().to_owned()
-}
-
-pub fn exit(code: i32) -> ! {
- unsafe { libc::exit(code as c_int) }
-}
diff --git a/library/std/src/sys/cloudabi/rwlock.rs b/library/std/src/sys/cloudabi/rwlock.rs
deleted file mode 100644
index 508de8ba47c..00000000000
--- a/library/std/src/sys/cloudabi/rwlock.rs
+++ /dev/null
@@ -1,215 +0,0 @@
-use crate::mem;
-use crate::mem::MaybeUninit;
-use crate::sync::atomic::{AtomicU32, Ordering};
-use crate::sys::cloudabi::abi;
-
-extern "C" {
- #[thread_local]
- static __pthread_thread_id: abi::tid;
-}
-
-#[thread_local]
-static mut RDLOCKS_ACQUIRED: u32 = 0;
-
-pub struct RWLock {
- lock: AtomicU32,
-}
-
-pub unsafe fn raw(r: &RWLock) -> &AtomicU32 {
- &r.lock
-}
-
-unsafe impl Send for RWLock {}
-unsafe impl Sync for RWLock {}
-
-impl RWLock {
- pub const fn new() -> RWLock {
- RWLock { lock: AtomicU32::new(abi::LOCK_UNLOCKED.0) }
- }
-
- pub unsafe fn try_read(&self) -> bool {
- let mut old = abi::LOCK_UNLOCKED.0;
- while let Err(cur) =
- self.lock.compare_exchange_weak(old, old + 1, Ordering::Acquire, Ordering::Relaxed)
- {
- if (cur & abi::LOCK_WRLOCKED.0) != 0 {
- // Another thread already has a write lock.
- assert_ne!(
- old & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "Attempted to acquire a read lock while holding a write lock"
- );
- return false;
- } else if (old & abi::LOCK_KERNEL_MANAGED.0) != 0 && RDLOCKS_ACQUIRED == 0 {
- // Lock has threads waiting for the lock. Only acquire
- // the lock if we have already acquired read locks. In
- // that case, it is justified to acquire this lock to
- // prevent a deadlock.
- return false;
- }
- old = cur;
- }
-
- RDLOCKS_ACQUIRED += 1;
- true
- }
-
- pub unsafe fn read(&self) {
- if !self.try_read() {
- // Call into the kernel to acquire a read lock.
- let subscription = abi::subscription {
- type_: abi::eventtype::LOCK_RDLOCK,
- union: abi::subscription_union {
- lock: abi::subscription_lock {
- lock: &self.lock as *const AtomicU32 as *mut abi::lock,
- lock_scope: abi::scope::PRIVATE,
- },
- },
- ..mem::zeroed()
- };
- let mut event = MaybeUninit::::uninit();
- let mut nevents = MaybeUninit::::uninit();
- let ret = abi::poll(&subscription, event.as_mut_ptr(), 1, nevents.as_mut_ptr());
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to acquire read lock");
- let event = event.assume_init();
- assert_eq!(event.error, abi::errno::SUCCESS, "Failed to acquire read lock");
-
- RDLOCKS_ACQUIRED += 1;
- }
- }
-
- pub unsafe fn read_unlock(&self) {
- // Perform a read unlock. We can do this in userspace, except when
- // other threads are blocked and we are performing the last unlock.
- // In that case, call into the kernel.
- //
- // Other threads may attempt to increment the read lock count,
- // meaning that the call into the kernel could be spurious. To
- // prevent this from happening, upgrade to a write lock first. This
- // allows us to call into the kernel, having the guarantee that the
- // lock value will not change in the meantime.
- assert!(RDLOCKS_ACQUIRED > 0, "Bad lock count");
- let mut old = 1;
- loop {
- if old == 1 | abi::LOCK_KERNEL_MANAGED.0 {
- // Last read lock while threads are waiting. Attempt to upgrade
- // to a write lock before calling into the kernel to unlock.
- if let Err(cur) = self.lock.compare_exchange_weak(
- old,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0 | abi::LOCK_KERNEL_MANAGED.0,
- Ordering::Acquire,
- Ordering::Relaxed,
- ) {
- old = cur;
- } else {
- // Call into the kernel to unlock.
- let ret = abi::lock_unlock(
- &self.lock as *const AtomicU32 as *mut abi::lock,
- abi::scope::PRIVATE,
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to write unlock a rwlock");
- break;
- }
- } else {
- // No threads waiting or not the last read lock. Just decrement
- // the read lock count.
- assert_ne!(old & !abi::LOCK_KERNEL_MANAGED.0, 0, "This rwlock is not locked");
- assert_eq!(
- old & abi::LOCK_WRLOCKED.0,
- 0,
- "Attempted to read-unlock a write-locked rwlock"
- );
- if let Err(cur) = self.lock.compare_exchange_weak(
- old,
- old - 1,
- Ordering::Acquire,
- Ordering::Relaxed,
- ) {
- old = cur;
- } else {
- break;
- }
- }
- }
-
- RDLOCKS_ACQUIRED -= 1;
- }
-
- pub unsafe fn try_write(&self) -> bool {
- // Attempt to acquire the lock.
- if let Err(old) = self.lock.compare_exchange(
- abi::LOCK_UNLOCKED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- Ordering::Acquire,
- Ordering::Relaxed,
- ) {
- // Failure. Crash upon recursive acquisition.
- assert_ne!(
- old & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "Attempted to recursive write-lock a rwlock",
- );
- false
- } else {
- // Success.
- true
- }
- }
-
- pub unsafe fn write(&self) {
- if !self.try_write() {
- // Call into the kernel to acquire a write lock.
- let subscription = abi::subscription {
- type_: abi::eventtype::LOCK_WRLOCK,
- union: abi::subscription_union {
- lock: abi::subscription_lock {
- lock: &self.lock as *const AtomicU32 as *mut abi::lock,
- lock_scope: abi::scope::PRIVATE,
- },
- },
- ..mem::zeroed()
- };
- let mut event = MaybeUninit::::uninit();
- let mut nevents = MaybeUninit::::uninit();
- let ret = abi::poll(&subscription, event.as_mut_ptr(), 1, nevents.as_mut_ptr());
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to acquire write lock");
- let event = event.assume_init();
- assert_eq!(event.error, abi::errno::SUCCESS, "Failed to acquire write lock");
- }
- }
-
- pub unsafe fn write_unlock(&self) {
- assert_eq!(
- self.lock.load(Ordering::Relaxed) & !abi::LOCK_KERNEL_MANAGED.0,
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- "This rwlock is not write-locked by this thread"
- );
-
- if !self
- .lock
- .compare_exchange(
- __pthread_thread_id.0 | abi::LOCK_WRLOCKED.0,
- abi::LOCK_UNLOCKED.0,
- Ordering::Release,
- Ordering::Relaxed,
- )
- .is_ok()
- {
- // Lock is managed by kernelspace. Call into the kernel
- // to unblock waiting threads.
- let ret = abi::lock_unlock(
- &self.lock as *const AtomicU32 as *mut abi::lock,
- abi::scope::PRIVATE,
- );
- assert_eq!(ret, abi::errno::SUCCESS, "Failed to write unlock a rwlock");
- }
- }
-
- pub unsafe fn destroy(&self) {
- assert_eq!(
- self.lock.load(Ordering::Relaxed),
- abi::LOCK_UNLOCKED.0,
- "Attempted to destroy locked rwlock"
- );
- }
-}
diff --git a/library/std/src/sys/cloudabi/shims/args.rs b/library/std/src/sys/cloudabi/shims/args.rs
deleted file mode 100644
index f5cf71caf6c..00000000000
--- a/library/std/src/sys/cloudabi/shims/args.rs
+++ /dev/null
@@ -1,35 +0,0 @@
-use crate::ffi::OsString;
-
-pub struct Args(());
-
-impl Args {
- pub fn inner_debug(&self) -> &[OsString] {
- &[]
- }
-}
-
-impl Iterator for Args {
- type Item = OsString;
- fn next(&mut self) -> Option {
- None
- }
- fn size_hint(&self) -> (usize, Option) {
- (0, Some(0))
- }
-}
-
-impl ExactSizeIterator for Args {
- fn len(&self) -> usize {
- 0
- }
-}
-
-impl DoubleEndedIterator for Args {
- fn next_back(&mut self) -> Option {
- None
- }
-}
-
-pub fn args() -> Args {
- Args(())
-}
diff --git a/library/std/src/sys/cloudabi/shims/env.rs b/library/std/src/sys/cloudabi/shims/env.rs
deleted file mode 100644
index de165a864b9..00000000000
--- a/library/std/src/sys/cloudabi/shims/env.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-pub mod os {
- pub const FAMILY: &str = "cloudabi";
- pub const OS: &str = "cloudabi";
- pub const DLL_PREFIX: &str = "lib";
- pub const DLL_SUFFIX: &str = ".so";
- pub const DLL_EXTENSION: &str = "so";
- pub const EXE_SUFFIX: &str = "";
- pub const EXE_EXTENSION: &str = "";
-}
diff --git a/library/std/src/sys/cloudabi/shims/fs.rs b/library/std/src/sys/cloudabi/shims/fs.rs
deleted file mode 100644
index a11cde9aea3..00000000000
--- a/library/std/src/sys/cloudabi/shims/fs.rs
+++ /dev/null
@@ -1,308 +0,0 @@
-use crate::ffi::OsString;
-use crate::fmt;
-use crate::hash::{Hash, Hasher};
-use crate::io::{self, IoSlice, IoSliceMut, SeekFrom};
-use crate::path::{Path, PathBuf};
-use crate::sys::time::SystemTime;
-use crate::sys::{unsupported, Void};
-
-pub struct File(Void);
-
-pub struct FileAttr(Void);
-
-pub struct ReadDir(Void);
-
-pub struct DirEntry(Void);
-
-#[derive(Clone, Debug)]
-pub struct OpenOptions {}
-
-pub struct FilePermissions(Void);
-
-pub struct FileType(Void);
-
-#[derive(Debug)]
-pub struct DirBuilder {}
-
-impl FileAttr {
- pub fn size(&self) -> u64 {
- match self.0 {}
- }
-
- pub fn perm(&self) -> FilePermissions {
- match self.0 {}
- }
-
- pub fn file_type(&self) -> FileType {
- match self.0 {}
- }
-
- pub fn modified(&self) -> io::Result {
- match self.0 {}
- }
-
- pub fn accessed(&self) -> io::Result {
- match self.0 {}
- }
-
- pub fn created(&self) -> io::Result {
- match self.0 {}
- }
-}
-
-impl Clone for FileAttr {
- fn clone(&self) -> FileAttr {
- match self.0 {}
- }
-}
-
-impl FilePermissions {
- pub fn readonly(&self) -> bool {
- match self.0 {}
- }
-
- pub fn set_readonly(&mut self, _readonly: bool) {
- match self.0 {}
- }
-}
-
-impl Clone for FilePermissions {
- fn clone(&self) -> FilePermissions {
- match self.0 {}
- }
-}
-
-impl PartialEq for FilePermissions {
- fn eq(&self, _other: &FilePermissions) -> bool {
- match self.0 {}
- }
-}
-
-impl Eq for FilePermissions {}
-
-impl fmt::Debug for FilePermissions {
- fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
- match self.0 {}
- }
-}
-
-impl FileType {
- pub fn is_dir(&self) -> bool {
- match self.0 {}
- }
-
- pub fn is_file(&self) -> bool {
- match self.0 {}
- }
-
- pub fn is_symlink(&self) -> bool {
- match self.0 {}
- }
-}
-
-impl Clone for FileType {
- fn clone(&self) -> FileType {
- match self.0 {}
- }
-}
-
-impl Copy for FileType {}
-
-impl PartialEq for FileType {
- fn eq(&self, _other: &FileType) -> bool {
- match self.0 {}
- }
-}
-
-impl Eq for FileType {}
-
-impl Hash for FileType {
- fn hash(&self, _h: &mut H) {
- match self.0 {}
- }
-}
-
-impl fmt::Debug for FileType {
- fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
- match self.0 {}
- }
-}
-
-impl fmt::Debug for ReadDir {
- fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
- match self.0 {}
- }
-}
-
-impl Iterator for ReadDir {
- type Item = io::Result;
-
- fn next(&mut self) -> Option> {
- match self.0 {}
- }
-}
-
-impl DirEntry {
- pub fn path(&self) -> PathBuf {
- match self.0 {}
- }
-
- pub fn file_name(&self) -> OsString {
- match self.0 {}
- }
-
- pub fn metadata(&self) -> io::Result {
- match self.0 {}
- }
-
- pub fn file_type(&self) -> io::Result {
- match self.0 {}
- }
-}
-
-impl OpenOptions {
- pub fn new() -> OpenOptions {
- OpenOptions {}
- }
-
- pub fn read(&mut self, _read: bool) {}
- pub fn write(&mut self, _write: bool) {}
- pub fn append(&mut self, _append: bool) {}
- pub fn truncate(&mut self, _truncate: bool) {}
- pub fn create(&mut self, _create: bool) {}
- pub fn create_new(&mut self, _create_new: bool) {}
-}
-
-impl File {
- pub fn open(_path: &Path, _opts: &OpenOptions) -> io::Result {
- unsupported()
- }
-
- pub fn file_attr(&self) -> io::Result {
- match self.0 {}
- }
-
- pub fn fsync(&self) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn datasync(&self) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn truncate(&self, _size: u64) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn read(&self, _buf: &mut [u8]) -> io::Result {
- match self.0 {}
- }
-
- pub fn read_vectored(&self, _bufs: &mut [IoSliceMut<'_>]) -> io::Result {
- match self.0 {}
- }
-
- pub fn is_read_vectored(&self) -> bool {
- match self.0 {}
- }
-
- pub fn write(&self, _buf: &[u8]) -> io::Result {
- match self.0 {}
- }
-
- pub fn write_vectored(&self, _bufs: &[IoSlice<'_>]) -> io::Result {
- match self.0 {}
- }
-
- pub fn is_write_vectored(&self) -> bool {
- match self.0 {}
- }
-
- pub fn flush(&self) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn seek(&self, _pos: SeekFrom) -> io::Result {
- match self.0 {}
- }
-
- pub fn duplicate(&self) -> io::Result {
- match self.0 {}
- }
-
- pub fn set_permissions(&self, _perm: FilePermissions) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn diverge(&self) -> ! {
- match self.0 {}
- }
-}
-
-impl DirBuilder {
- pub fn new() -> DirBuilder {
- DirBuilder {}
- }
-
- pub fn mkdir(&self, _p: &Path) -> io::Result<()> {
- unsupported()
- }
-}
-
-impl fmt::Debug for File {
- fn fmt(&self, _f: &mut fmt::Formatter<'_>) -> fmt::Result {
- match self.0 {}
- }
-}
-
-pub fn readdir(_p: &Path) -> io::Result {
- unsupported()
-}
-
-pub fn unlink(_p: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn rename(_old: &Path, _new: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn set_perm(_p: &Path, perm: FilePermissions) -> io::Result<()> {
- match perm.0 {}
-}
-
-pub fn rmdir(_p: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn remove_dir_all(_path: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn readlink(_p: &Path) -> io::Result {
- unsupported()
-}
-
-pub fn symlink(_original: &Path, _link: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn link(_src: &Path, _dst: &Path) -> io::Result<()> {
- unsupported()
-}
-
-pub fn stat(_p: &Path) -> io::Result {
- unsupported()
-}
-
-pub fn lstat(_p: &Path) -> io::Result {
- unsupported()
-}
-
-pub fn canonicalize(_p: &Path) -> io::Result {
- unsupported()
-}
-
-pub fn copy(_from: &Path, _to: &Path) -> io::Result {
- unsupported()
-}
diff --git a/library/std/src/sys/cloudabi/shims/mod.rs b/library/std/src/sys/cloudabi/shims/mod.rs
deleted file mode 100644
index b1b5f142f45..00000000000
--- a/library/std/src/sys/cloudabi/shims/mod.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-use crate::io;
-
-pub mod args;
-pub mod env;
-pub mod fs;
-pub mod net;
-pub mod os;
-#[path = "../../unix/path.rs"]
-pub mod path;
-pub mod pipe;
-pub mod process;
-
-// This enum is used as the storage for a bunch of types which can't actually exist.
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)]
-pub enum Void {}
-
-pub fn unsupported() -> io::Result {
- Err(io::Error::new(io::ErrorKind::Other, "This function is not available on CloudABI."))
-}
diff --git a/library/std/src/sys/cloudabi/shims/net.rs b/library/std/src/sys/cloudabi/shims/net.rs
deleted file mode 100644
index 375aaab405d..00000000000
--- a/library/std/src/sys/cloudabi/shims/net.rs
+++ /dev/null
@@ -1,326 +0,0 @@
-use crate::convert::TryFrom;
-use crate::fmt;
-use crate::io::{self, IoSlice, IoSliceMut};
-use crate::net::{Ipv4Addr, Ipv6Addr, Shutdown, SocketAddr};
-use crate::sys::{unsupported, Void};
-use crate::time::Duration;
-
-#[allow(unused_extern_crates)]
-pub extern crate libc as netc;
-
-pub struct TcpStream(Void);
-
-impl TcpStream {
- pub fn connect(_: io::Result<&SocketAddr>) -> io::Result {
- unsupported()
- }
-
- pub fn connect_timeout(_: &SocketAddr, _: Duration) -> io::Result {
- unsupported()
- }
-
- pub fn set_read_timeout(&self, _: Option) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn set_write_timeout(&self, _: Option) -> io::Result<()> {
- match self.0 {}
- }
-
- pub fn read_timeout(&self) -> io::Result