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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SkThread_platform_DEFINED
#define SkThread_platform_DEFINED
#ifdef ANDROID
#include <utils/threads.h>
#include <utils/Atomic.h>
#define sk_atomic_inc(addr) android_atomic_inc(addr)
#define sk_atomic_dec(addr) android_atomic_dec(addr)
class SkMutex : android::Mutex {
public:
// if isGlobal is true, then ignore any errors in the platform-specific
// destructor
SkMutex(bool isGlobal = true) {}
~SkMutex() {}
void acquire() { this->lock(); }
void release() { this->unlock(); }
};
#else
/** Implemented by the porting layer, this function adds 1 to the int specified
by the address (in a thread-safe manner), and returns the previous value.
*/
int32_t sk_atomic_inc(int32_t* addr);
/** Implemented by the porting layer, this function subtracts 1 to the int
specified by the address (in a thread-safe manner), and returns the previous
value.
*/
int32_t sk_atomic_dec(int32_t* addr);
class SkMutex {
public:
// if isGlobal is true, then ignore any errors in the platform-specific
// destructor
SkMutex(bool isGlobal = true);
~SkMutex();
void acquire();
void release();
private:
bool fIsGlobal;
enum {
kStorageIntCount = 12
};
uint32_t fStorage[kStorageIntCount];
};
#endif
#endif
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