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correct literals for dyn thread safe

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This commit is contained in:
SparrowLii 2023-04-07 21:20:26 +08:00
parent 9f8ab2a8d3
commit 089a38880b
11 changed files with 48 additions and 41 deletions
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2
compiler/rustc_ast/src/tokenstream.rs
View File

@ -48,7 +48,7 @@ pub enum TokenTree {
Delimited(DelimSpan, Delimiter, TokenStream),
}
// Ensure all fields of `TokenTree` is `DynSend` and `DynSync`.
// Ensure all fields of `TokenTree` are `DynSend` and `DynSync`.
#[cfg(parallel_compiler)]
fn _dummy()
where

21
compiler/rustc_data_structures/src/marker.rs
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@ -8,20 +8,20 @@ cfg_if!(
} else {
#[rustc_on_unimplemented(
message = "`{Self}` doesn't implement `DynSend`. \
Add it to `rustc_data_structures::marker` or use `IntoDyn` if it's already `Send`"
Add it to `rustc_data_structures::marker` or use `IntoDynSyncSend` if it's already `Send`"
)]
// This is an auto trait for types which can be sent across threads if `sync::is_dyn_thread_safe()`
// is true. These types can be wrapped in a `FromDyn` to get a `Send` type. Wrapping a
// `Send` type in `IntoDyn` will create a `DynSend` type.
// `Send` type in `IntoDynSyncSend` will create a `DynSend` type.
pub unsafe auto trait DynSend {}
#[rustc_on_unimplemented(
message = "`{Self}` doesn't implement `DynSync`. \
Add it to `rustc_data_structures::marker` or use `IntoDyn` if it's already `Sync`"
Add it to `rustc_data_structures::marker` or use `IntoDynSyncSend` if it's already `Sync`"
)]
// This is an auto trait for types which can be shared across threads if `sync::is_dyn_thread_safe()`
// is true. These types can be wrapped in a `FromDyn` to get a `Sync` type. Wrapping a
// `Sync` type in `IntoDyn` will create a `DynSync` type.
// `Sync` type in `IntoDynSyncSend` will create a `DynSync` type.
pub unsafe auto trait DynSync {}
// Same with `Sync` and `Send`.
@ -234,15 +234,18 @@ impl<T> const std::ops::Deref for FromDyn<T> {
}
}
// A wrapper to convert a struct that is already a `Send` or `Sync` into
// an instance of `DynSend` and `DynSync`, since the compiler cannot infer
// it automatically in some cases. (e.g. Box<dyn Send / Sync>)
#[derive(Copy, Clone)]
pub struct IntoDyn<T: ?Sized>(pub T);
pub struct IntoDynSyncSend<T: ?Sized>(pub T);
#[cfg(parallel_compiler)]
unsafe impl<T: ?Sized + Send> DynSend for IntoDyn<T> {}
unsafe impl<T: ?Sized + Send> DynSend for IntoDynSyncSend<T> {}
#[cfg(parallel_compiler)]
unsafe impl<T: ?Sized + Sync> DynSync for IntoDyn<T> {}
unsafe impl<T: ?Sized + Sync> DynSync for IntoDynSyncSend<T> {}
impl<T> const std::ops::Deref for IntoDyn<T> {
impl<T> const std::ops::Deref for IntoDynSyncSend<T> {
type Target = T;
fn deref(&self) -> &T {
@ -250,7 +253,7 @@ impl<T> const std::ops::Deref for IntoDyn<T> {
}
}
impl<T> const std::ops::DerefMut for IntoDyn<T> {
impl<T> const std::ops::DerefMut for IntoDynSyncSend<T> {
fn deref_mut(&mut self) -> &mut T {
&mut self.0
}

24
compiler/rustc_data_structures/src/sync.rs
View File

@ -61,25 +61,25 @@ mod mode {
use std::sync::atomic::AtomicU8;
const UNINITIALIZED: u8 = 0;
const DYN_NOT_SYNC: u8 = 1;
const DYN_SYNC: u8 = 2;
const DYN_NOT_THREAD_SAFE: u8 = 1;
const DYN_THREAD_SAFE: u8 = 2;
static DYN_SYNC_MODE: AtomicU8 = AtomicU8::new(UNINITIALIZED);
static DYN_THREAD_SAFE_MODE: AtomicU8 = AtomicU8::new(UNINITIALIZED);
// Weather control thread safety dynamically
// Whether thread safety is enabled (due to running under multiple threads).
#[inline]
pub fn is_dyn_thread_safe() -> bool {
match DYN_SYNC_MODE.load(Ordering::Relaxed) {
DYN_NOT_SYNC => false,
DYN_SYNC => true,
_ => panic!("uninitialized parallel mode!"),
match DYN_THREAD_SAFE_MODE.load(Ordering::Relaxed) {
DYN_NOT_THREAD_SAFE => false,
DYN_THREAD_SAFE => true,
_ => panic!("uninitialized dyn_thread_safe mode!"),
}
}
// Only set by the `-Z threads` compile option
pub fn set_dyn_thread_safe_mode(parallel: bool) {
let set: u8 = if parallel { DYN_SYNC } else { DYN_NOT_SYNC };
let previous = DYN_SYNC_MODE.compare_exchange(
pub fn set_dyn_thread_safe_mode(mode: bool) {
let set: u8 = if mode { DYN_THREAD_SAFE } else { DYN_NOT_THREAD_SAFE };
let previous = DYN_THREAD_SAFE_MODE.compare_exchange(
UNINITIALIZED,
set,
Ordering::Relaxed,
@ -401,7 +401,7 @@ cfg_if! {
if rustc_data_structures::sync::is_dyn_thread_safe() {
// Reverse the order of the later blocks since Rayon executes them in reverse order
// when using a single thread. This ensures the execution order matches that
// of a single threaded rustc
// of a single threaded rustc.
parallel!(impl $fblock [] [$($blocks),*]);
} else {
// We catch panics here ensuring that all the blocks execute.

4
compiler/rustc_driver_impl/src/lib.rs
View File

@ -255,8 +255,8 @@ fn run_compiler(
let sopts = config::build_session_options(&matches);
// Set parallel mode before thread pool creation as the session will already create locks.
interface::set_parallel_mode(&sopts.unstable_opts);
// Set parallel mode before thread pool creation, which will create `Lock`s.
interface::set_thread_safe_mode(&sopts.unstable_opts);
if let Some(ref code) = matches.opt_str("explain") {
handle_explain(diagnostics_registry(), code, sopts.error_format);

8
compiler/rustc_error_messages/src/lib.rs
View File

@ -11,7 +11,7 @@ extern crate tracing;
use fluent_bundle::FluentResource;
use fluent_syntax::parser::ParserError;
use icu_provider_adapters::fallback::{LocaleFallbackProvider, LocaleFallbacker};
use rustc_data_structures::sync::{IntoDyn, Lrc};
use rustc_data_structures::sync::{IntoDynSyncSend, Lrc};
use rustc_fluent_macro::fluent_messages;
use rustc_macros::{Decodable, Encodable};
use rustc_span::Span;
@ -38,16 +38,16 @@ pub use unic_langid::{langid, LanguageIdentifier};
fluent_messages! { "../messages.ftl" }
pub type FluentBundle =
IntoDyn<fluent_bundle::bundle::FluentBundle<FluentResource, IntlLangMemoizer>>;
IntoDynSyncSend<fluent_bundle::bundle::FluentBundle<FluentResource, IntlLangMemoizer>>;
#[cfg(not(parallel_compiler))]
fn new_bundle(locales: Vec<LanguageIdentifier>) -> FluentBundle {
IntoDyn(fluent_bundle::bundle::FluentBundle::new(locales))
IntoDynSyncSend(fluent_bundle::bundle::FluentBundle::new(locales))
}
#[cfg(parallel_compiler)]
fn new_bundle(locales: Vec<LanguageIdentifier>) -> FluentBundle {
IntoDyn(fluent_bundle::bundle::FluentBundle::new_concurrent(locales))
IntoDynSyncSend(fluent_bundle::bundle::FluentBundle::new_concurrent(locales))
}
#[derive(Debug)]

6
compiler/rustc_errors/src/lib.rs
View File

@ -32,7 +32,7 @@ use emitter::{is_case_difference, Emitter, EmitterWriter};
use registry::Registry;
use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet};
use rustc_data_structures::stable_hasher::{Hash128, StableHasher};
use rustc_data_structures::sync::{self, IntoDyn, Lock, Lrc};
use rustc_data_structures::sync::{self, IntoDynSyncSend, Lock, Lrc};
use rustc_data_structures::AtomicRef;
pub use rustc_error_messages::{
fallback_fluent_bundle, fluent_bundle, DelayDm, DiagnosticMessage, FluentBundle,
@ -409,7 +409,7 @@ struct HandlerInner {
err_count: usize,
warn_count: usize,
deduplicated_err_count: usize,
emitter: IntoDyn<Box<dyn Emitter + sync::Send>>,
emitter: IntoDynSyncSend<Box<dyn Emitter + sync::Send>>,
delayed_span_bugs: Vec<DelayedDiagnostic>,
delayed_good_path_bugs: Vec<DelayedDiagnostic>,
/// This flag indicates that an expected diagnostic was emitted and suppressed.
@ -605,7 +605,7 @@ impl Handler {
warn_count: 0,
deduplicated_err_count: 0,
deduplicated_warn_count: 0,
emitter: IntoDyn(emitter),
emitter: IntoDynSyncSend(emitter),
delayed_span_bugs: Vec::new(),
delayed_good_path_bugs: Vec::new(),
suppressed_expected_diag: false,

8
compiler/rustc_errors/src/tests.rs
View File

@ -2,7 +2,7 @@ use crate::error::{TranslateError, TranslateErrorKind};
use crate::fluent_bundle::*;
use crate::translation::Translate;
use crate::FluentBundle;
use rustc_data_structures::sync::{IntoDyn, Lrc};
use rustc_data_structures::sync::{IntoDynSyncSend, Lrc};
use rustc_error_messages::fluent_bundle::resolver::errors::{ReferenceKind, ResolverError};
use rustc_error_messages::langid;
use rustc_error_messages::DiagnosticMessage;
@ -28,11 +28,13 @@ fn make_dummy(ftl: &'static str) -> Dummy {
#[cfg(parallel_compiler)]
let mut bundle: FluentBundle =
IntoDyn(crate::fluent_bundle::bundle::FluentBundle::new_concurrent(vec![langid_en]));
IntoDynSyncSend(crate::fluent_bundle::bundle::FluentBundle::new_concurrent(vec![
langid_en,
]));
#[cfg(not(parallel_compiler))]
let mut bundle: FluentBundle =
IntoDyn(crate::fluent_bundle::bundle::FluentBundle::new(vec![langid_en]));
IntoDynSyncSend(crate::fluent_bundle::bundle::FluentBundle::new(vec![langid_en]));
bundle.add_resource(resource).expect("Failed to add FTL resources to the bundle.");

2
compiler/rustc_interface/src/interface.rs
View File

@ -61,7 +61,7 @@ impl Compiler {
}
#[allow(rustc::bad_opt_access)]
pub fn set_parallel_mode(sopts: &config::UnstableOptions) {
pub fn set_thread_safe_mode(sopts: &config::UnstableOptions) {
rustc_data_structures::sync::set_dyn_thread_safe_mode(sopts.threads > 1);
}

2
compiler/rustc_middle/src/ty/list.rs
View File

@ -199,7 +199,7 @@ impl<'a, T: Copy> IntoIterator for &'a List<T> {
unsafe impl<T: Sync> Sync for List<T> {}
// We need this since `List` uses extern type `OpaqueListContents`
// We need this since `List` uses extern type `OpaqueListContents`.
#[cfg(parallel_compiler)]
use rustc_data_structures::sync::DynSync;
#[cfg(parallel_compiler)]

8
compiler/rustc_span/src/source_map.rs
View File

@ -14,7 +14,9 @@ pub use crate::*;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::stable_hasher::{Hash128, Hash64, StableHasher};
use rustc_data_structures::sync::{AtomicU32, IntoDyn, Lrc, MappedReadGuard, ReadGuard, RwLock};
use rustc_data_structures::sync::{
AtomicU32, IntoDynSyncSend, Lrc, MappedReadGuard, ReadGuard, RwLock,
};
use std::cmp;
use std::hash::Hash;
use std::path::{self, Path, PathBuf};
@ -176,7 +178,7 @@ pub struct SourceMap {
used_address_space: AtomicU32,
files: RwLock<SourceMapFiles>,
file_loader: IntoDyn<Box<dyn FileLoader + Sync + Send>>,
file_loader: IntoDynSyncSend<Box<dyn FileLoader + Sync + Send>>,
// This is used to apply the file path remapping as specified via
// `--remap-path-prefix` to all `SourceFile`s allocated within this `SourceMap`.
path_mapping: FilePathMapping,
@ -202,7 +204,7 @@ impl SourceMap {
SourceMap {
used_address_space: AtomicU32::new(0),
files: Default::default(),
file_loader: IntoDyn(file_loader),
file_loader: IntoDynSyncSend(file_loader),
path_mapping,
hash_kind,
}

4
src/librustdoc/lib.rs
View File

@ -730,8 +730,8 @@ fn main_args(at_args: &[String]) -> MainResult {
}
};
// Set parallel mode early as the error handler will already create locks.
interface::set_parallel_mode(&options.unstable_opts);
// Set parallel mode before error handler creation, which will create `Lock`s.
interface::set_thread_safe_mode(&options.unstable_opts);
let diag = core::new_handler(
options.error_format,