mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
ede4010cc3
A copy of the older Concurrency sources was just added to BackDeployConcurrency, replacing the `add_subdirectory(../Concurrency)` trick it was using previously. These need to be adjusted to work with the threading library. Fortunately, the necessary adjustments are the same as those required for the existing Concurrency library, give or take. rdar://90776105
34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
//===--- AsyncStream.cpp - Multi-resume locking interface -----------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2020 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include <new>
|
|
|
|
#include "swift/Threading/Mutex.h"
|
|
|
|
namespace swift {
|
|
// return the size in words for the given mutex primitive
|
|
extern "C"
|
|
size_t _swift_async_stream_lock_size() {
|
|
size_t words = sizeof(Mutex) / sizeof(void *);
|
|
if (words < 1) { return 1; }
|
|
return words;
|
|
}
|
|
|
|
extern "C" void _swift_async_stream_lock_init(Mutex &lock) {
|
|
new (&lock) Mutex();
|
|
}
|
|
|
|
extern "C" void _swift_async_stream_lock_lock(Mutex &lock) { lock.lock(); }
|
|
|
|
extern "C" void _swift_async_stream_lock_unlock(Mutex &lock) { lock.unlock(); }
|
|
}
|