firefox-main/mozglue/misc/Mutex_windows.cpp (file symbol)

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/PlatformMutex.h"
#include <windows.h>
#include "MutexPlatformData_windows.h"
mozilla::detail::MutexImpl::MutexImpl() {
InitializeSRWLock(&platformData()->lock);
}
mozilla::detail::MutexImpl::~MutexImpl() {}
void mozilla::detail::MutexImpl::lock() {
AcquireSRWLockExclusive(&platformData()->lock);
}
bool mozilla::detail::MutexImpl::tryLock() { return mutexTryLock(); }
bool mozilla::detail::MutexImpl::mutexTryLock() {
return !!TryAcquireSRWLockExclusive(&platformData()->lock);
}
void mozilla::detail::MutexImpl::unlock() {
ReleaseSRWLockExclusive(&platformData()->lock);
}
mozilla::detail::MutexImpl::PlatformData*
mozilla::detail::MutexImpl::platformData() {
static_assert(sizeof(platformData_) >= sizeof(PlatformData),
"platformData_ is too small");
return reinterpret_cast<PlatformData*>(platformData_);
}