1 /* libs/graphics/ports/SkThread_none.cpp 2 ** 3 ** Copyright 2008, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 #include <windows.h> 19 #include "SkThread.h" 20 sk_atomic_inc(int32_t * addr)21int32_t sk_atomic_inc(int32_t* addr) 22 { 23 // InterlockedIncrement returns the new value, we want to return the old. 24 return InterlockedIncrement(reinterpret_cast<LONG*>(addr)) - 1; 25 } 26 sk_atomic_dec(int32_t * addr)27int32_t sk_atomic_dec(int32_t* addr) 28 { 29 return InterlockedDecrement(reinterpret_cast<LONG*>(addr)) + 1; 30 } 31 SkMutex(bool)32SkMutex::SkMutex(bool /* isGlobal */) 33 { 34 SK_COMPILE_ASSERT(sizeof(fStorage) > sizeof(CRITICAL_SECTION), 35 NotEnoughSizeForCriticalSection); 36 InitializeCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); 37 } 38 ~SkMutex()39SkMutex::~SkMutex() 40 { 41 DeleteCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); 42 } 43 acquire()44void SkMutex::acquire() 45 { 46 EnterCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); 47 } 48 release()49void SkMutex::release() 50 { 51 LeaveCriticalSection(reinterpret_cast<CRITICAL_SECTION*>(&fStorage)); 52 } 53 54