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112 lines
3.6 KiB
Rust
112 lines
3.6 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![allow(missing_docs)]
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#![allow(non_camel_case_types)]
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use io::{self, ErrorKind};
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use libc;
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use num::One;
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use ops::Neg;
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#[cfg(target_os = "android")] pub use os::android as platform;
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#[cfg(target_os = "bitrig")] pub use os::bitrig as platform;
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#[cfg(target_os = "dragonfly")] pub use os::dragonfly as platform;
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#[cfg(target_os = "freebsd")] pub use os::freebsd as platform;
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#[cfg(target_os = "ios")] pub use os::ios as platform;
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#[cfg(target_os = "linux")] pub use os::linux as platform;
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#[cfg(target_os = "macos")] pub use os::macos as platform;
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#[cfg(target_os = "nacl")] pub use os::nacl as platform;
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#[cfg(target_os = "netbsd")] pub use os::netbsd as platform;
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#[cfg(target_os = "openbsd")] pub use os::openbsd as platform;
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pub mod backtrace;
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pub mod c;
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pub mod condvar;
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pub mod ext;
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pub mod fd;
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pub mod fs;
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pub mod mutex;
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pub mod net;
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pub mod os;
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pub mod os_str;
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pub mod pipe;
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pub mod process;
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pub mod rwlock;
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pub mod stack_overflow;
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pub mod sync;
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pub mod thread;
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pub mod thread_local;
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pub mod time;
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pub mod stdio;
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#[cfg(not(target_os = "nacl"))]
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pub fn init() {
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use libc::funcs::posix01::signal::signal;
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// By default, some platforms will send a *signal* when an EPIPE error
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// would otherwise be delivered. This runtime doesn't install a SIGPIPE
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// handler, causing it to kill the program, which isn't exactly what we
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// want!
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//
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// Hence, we set SIGPIPE to ignore when the program starts up in order
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// to prevent this problem.
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unsafe {
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assert!(signal(libc::SIGPIPE, libc::SIG_IGN) != !0);
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}
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}
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#[cfg(target_os = "nacl")]
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pub fn init() { }
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pub fn decode_error_kind(errno: i32) -> ErrorKind {
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match errno as libc::c_int {
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libc::ECONNREFUSED => ErrorKind::ConnectionRefused,
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libc::ECONNRESET => ErrorKind::ConnectionReset,
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libc::EPERM | libc::EACCES => ErrorKind::PermissionDenied,
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libc::EPIPE => ErrorKind::BrokenPipe,
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libc::ENOTCONN => ErrorKind::NotConnected,
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libc::ECONNABORTED => ErrorKind::ConnectionAborted,
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libc::EADDRNOTAVAIL => ErrorKind::AddrNotAvailable,
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libc::EADDRINUSE => ErrorKind::AddrInUse,
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libc::ENOENT => ErrorKind::NotFound,
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libc::EINTR => ErrorKind::Interrupted,
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libc::EINVAL => ErrorKind::InvalidInput,
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libc::ETIMEDOUT => ErrorKind::TimedOut,
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libc::consts::os::posix88::EEXIST => ErrorKind::AlreadyExists,
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// These two constants can have the same value on some systems,
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// but different values on others, so we can't use a match
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// clause
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x if x == libc::EAGAIN || x == libc::EWOULDBLOCK =>
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ErrorKind::WouldBlock,
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_ => ErrorKind::Other,
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}
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}
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pub fn cvt<T: One + PartialEq + Neg<Output=T>>(t: T) -> io::Result<T> {
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let one: T = T::one();
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if t == -one {
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Err(io::Error::last_os_error())
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} else {
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Ok(t)
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}
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}
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pub fn cvt_r<T, F>(mut f: F) -> io::Result<T>
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where T: One + PartialEq + Neg<Output=T>, F: FnMut() -> T
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{
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loop {
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match cvt(f()) {
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Err(ref e) if e.kind() == ErrorKind::Interrupted => {}
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other => return other,
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}
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}
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}
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