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/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkThread_DEFINED
#define SkThread_DEFINED
#include "SkTypes.h"
#include "SkThread_platform.h"
/****** SkThread_platform needs to define the following...
int32_t sk_atomic_inc(int32_t*);
int32_t sk_atomic_add(int32_t*, int32_t);
int32_t sk_atomic_dec(int32_t*);
int32_t sk_atomic_conditional_inc(int32_t*);
class SkMutex {
public:
SkMutex();
~SkMutex();
void acquire();
void release();
};
****************/
class SkAutoMutexAcquire : SkNoncopyable {
public:
explicit SkAutoMutexAcquire(SkBaseMutex& mutex) : fMutex(&mutex) {
SkASSERT(fMutex != NULL);
mutex.acquire();
}
SkAutoMutexAcquire(SkBaseMutex* mutex) : fMutex(mutex) {
if (mutex) {
mutex->acquire();
}
}
/** If the mutex has not been release, release it now.
*/
~SkAutoMutexAcquire() {
if (fMutex) {
fMutex->release();
}
}
/** If the mutex has not been release, release it now.
*/
void release() {
if (fMutex) {
fMutex->release();
fMutex = NULL;
}
}
private:
SkBaseMutex* fMutex;
};
#define SkAutoMutexAcquire(...) SK_REQUIRE_LOCAL_VAR(SkAutoMutexAcquire)
#endif
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