1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//===--- 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/Runtime/Config.h"
#include "swift/Threading/Mutex.h"
namespace swift {
// return the size in words for the given mutex primitive
SWIFT_CC(swift)
extern "C"
size_t _swift_async_stream_lock_size() {
size_t words = sizeof(Mutex) / sizeof(void *);
if (words < 1) { return 1; }
return words;
}
SWIFT_CC(swift)
extern "C" void _swift_async_stream_lock_init(Mutex &lock) {
new (&lock) Mutex();
}
SWIFT_CC(swift)
extern "C" void _swift_async_stream_lock_lock(Mutex &lock) { lock.lock(); }
SWIFT_CC(swift)
extern "C" void _swift_async_stream_lock_unlock(Mutex &lock) { lock.unlock(); }
}
|
