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66b9d21000
Read/write locks are not as good as you'd think; a simple mutex is better in almost all cases. rdar://90776105
38 lines
1.0 KiB
C++
38 lines
1.0 KiB
C++
//===--- MutexC11.cpp - Supports Mutex.h using C11 threads ----------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2022 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Mutex and Read/Write lock implementations using C11 threads.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/Runtime/Mutex.h"
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#include "swift/Runtime/Debug.h"
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#if SWIFT_STDLIB_THREADING_C11
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using namespace swift;
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namespace c11threads {
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#ifndef SWIFT_FATAL_ERROR
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#define SWIFT_FATAL_ERROR swift::fatalError
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#endif
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// Triggered if a C11 threads call fails
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void fatalError(int errcode) {
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SWIFT_FATAL_ERROR(0, "C11 threads call failed with %d\n", errcode);
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}
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}
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#endif // SWIFT_STDLIB_THREADING_C11
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