mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
f5bdb858e0
Moved all the threading code to one place. Added explicit support for Darwin, Linux, Pthreads, C11 threads and Win32 threads, including new implementations of Once for Linux, Pthreads, C11 and Win32. rdar://90776105
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
//===--- Thread.h - Thread abstraction ------------------------ -*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2022 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Provides an abstract Thread class that identifies a system thread,
|
|
// and can fetch the current and main threads as well as being comparable
|
|
// with other Thread instances.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_THREADING_THREAD_H
|
|
#define SWIFT_THREADING_THREAD_H
|
|
|
|
#include "Impl.h"
|
|
|
|
namespace swift {
|
|
|
|
/// Identifies a thread
|
|
class Thread {
|
|
private:
|
|
threading_impl::thread_id id_;
|
|
|
|
public:
|
|
Thread() {}
|
|
Thread(const Thread& other) : id_(other.id_) {}
|
|
Thread(Thread&& other) : id_(std::move(other.id_)) {}
|
|
|
|
Thread& operator=(const Thread& other) {
|
|
id_ = other.id_;
|
|
return *this;
|
|
}
|
|
|
|
Thread& operator=(Thread&& other) {
|
|
id_ = other.id_;
|
|
return *this;
|
|
}
|
|
|
|
/// Returns the currently executing thread
|
|
static Thread current() {
|
|
return Thread(threading_impl::thread_get_current());
|
|
}
|
|
|
|
/// Returns the main thread in this program
|
|
static Thread main() {
|
|
return Thread(threading_impl::thread_get_main());
|
|
}
|
|
|
|
/// Returns true iff executed on the main thread
|
|
static bool onMainThread() {
|
|
return threading_impl::thread_is_main();
|
|
}
|
|
|
|
/// Returns true if the two Thread values are equal
|
|
bool operator==(const Thread& other) const {
|
|
return threading_impl::threads_same(id_, other.id_);
|
|
}
|
|
bool operator!=(const Thread& other) const {
|
|
return !threading_impl::threads_same(id_, other.id_);
|
|
}
|
|
};
|
|
|
|
} // namespace swift
|
|
|
|
#endif // SWIFT_THREADING_THREAD_H
|