gecko-dev/gfx/2d/CriticalSection.h
Daniel Holbert 126bd9e1a4 Bug 1412427 part 8: (automated patch) Switch a bunch of C++ files in gfx to use our standard mode lines. r=jrmuizel
This patch was generated automatically by the "modeline.py" script, available
here: https://github.com/amccreight/moz-source-tools/blob/master/modeline.py

For every file that is modified in this patch, the changes are as follows:
 (1) The patch changes the file to use the exact C++ mode lines from the
     Mozilla coding style guide, available here:
https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Coding_Style#Mode_Line

 (2) The patch deletes any blank lines between the mode line & the MPL
     boilerplate comment.

 (3) If the file previously had the mode lines and MPL boilerplate in a
     single contiguous C++ comment, then the patch splits them into
     separate C++ comments, to match the boilerplate in the coding style.

MozReview-Commit-ID: 77D61xpSmIl

--HG--
extra : rebase_source : c6162fa3cf539a07177a19838324bf368faa162b
2017-10-27 16:10:06 -07:00

82 lines
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#ifndef MOZILLA_GFX_CRITICALSECTION_H_
#define MOZILLA_GFX_CRITICALSECTION_H_
#ifdef WIN32
#include <windows.h>
#else
#include <pthread.h>
#include "mozilla/DebugOnly.h"
#endif
namespace mozilla {
namespace gfx {
#ifdef WIN32
class CriticalSection {
public:
CriticalSection() { ::InitializeCriticalSection(&mCriticalSection); }
~CriticalSection() { ::DeleteCriticalSection(&mCriticalSection); }
void Enter() { ::EnterCriticalSection(&mCriticalSection); }
void Leave() { ::LeaveCriticalSection(&mCriticalSection); }
protected:
CRITICAL_SECTION mCriticalSection;
};
#else
// posix
class PosixCondvar;
class CriticalSection {
public:
CriticalSection() {
DebugOnly<int> err = pthread_mutex_init(&mMutex, nullptr);
MOZ_ASSERT(!err);
}
~CriticalSection() {
DebugOnly<int> err = pthread_mutex_destroy(&mMutex);
MOZ_ASSERT(!err);
}
void Enter() {
DebugOnly<int> err = pthread_mutex_lock(&mMutex);
MOZ_ASSERT(!err);
}
void Leave() {
DebugOnly<int> err = pthread_mutex_unlock(&mMutex);
MOZ_ASSERT(!err);
}
protected:
pthread_mutex_t mMutex;
friend class PosixCondVar;
};
#endif
/// RAII helper.
struct CriticalSectionAutoEnter {
explicit CriticalSectionAutoEnter(CriticalSection* aSection) : mSection(aSection) { mSection->Enter(); }
~CriticalSectionAutoEnter() { mSection->Leave(); }
protected:
CriticalSection* mSection;
};
} // namespace
} // namespace
#endif