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