50ccb0a738
Complements sk_atomic_inc for when you want to increase by more than one. This time, use the correct atomic add function on Windows. Reviewed at https://codereview.appspot.com/6399050/ Review URL: https://codereview.appspot.com/6407048 git-svn-id: http://skia.googlecode.com/svn/trunk@4623 2bbb7eff-a529-9590-31e7-b0007b416f81
69 lines
1.3 KiB
C++
69 lines
1.3 KiB
C++
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/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkThread_DEFINED
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#define SkThread_DEFINED
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#include "SkTypes.h"
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#include "SkThread_platform.h"
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/****** SkThread_platform needs to define the following...
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int32_t sk_atomic_inc(int32_t*);
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int32_t sk_atomic_add(int32_t*, int32_t);
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int32_t sk_atomic_dec(int32_t*);
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int32_t sk_atomic_conditional_inc(int32_t*);
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class SkMutex {
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public:
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SkMutex();
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~SkMutex();
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void acquire();
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void release();
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};
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****************/
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class SkAutoMutexAcquire : SkNoncopyable {
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public:
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explicit SkAutoMutexAcquire(SkBaseMutex& mutex) : fMutex(&mutex) {
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SkASSERT(fMutex != NULL);
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mutex.acquire();
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}
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SkAutoMutexAcquire(SkBaseMutex* mutex) : fMutex(mutex) {
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if (mutex) {
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mutex->acquire();
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}
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}
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/** If the mutex has not been release, release it now.
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*/
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~SkAutoMutexAcquire() {
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if (fMutex) {
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fMutex->release();
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}
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}
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/** If the mutex has not been release, release it now.
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*/
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void release() {
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if (fMutex) {
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fMutex->release();
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fMutex = NULL;
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}
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}
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private:
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SkBaseMutex* fMutex;
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};
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#endif
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