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4babb2b5ab
Patch by bhackett and jlaster. Also reviewed by mccr8. Differential Revision: https://phabricator.services.mozilla.com/D60197 --HG-- extra : moz-landing-system : lando
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/Assertions.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/PlatformMutex.h"
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#include <windows.h>
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#include "MutexPlatformData_windows.h"
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mozilla::detail::MutexImpl::MutexImpl() {
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InitializeSRWLock(&platformData()->lock);
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}
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mozilla::detail::MutexImpl::~MutexImpl() {}
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void mozilla::detail::MutexImpl::lock() {
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AcquireSRWLockExclusive(&platformData()->lock);
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}
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bool mozilla::detail::MutexImpl::tryLock() { return mutexTryLock(); }
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bool mozilla::detail::MutexImpl::mutexTryLock() {
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return !!TryAcquireSRWLockExclusive(&platformData()->lock);
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}
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void mozilla::detail::MutexImpl::unlock() {
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ReleaseSRWLockExclusive(&platformData()->lock);
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}
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mozilla::detail::MutexImpl::PlatformData*
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mozilla::detail::MutexImpl::platformData() {
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static_assert(sizeof(platformData_) >= sizeof(PlatformData),
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"platformData_ is too small");
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return reinterpret_cast<PlatformData*>(platformData_);
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}
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