1 /* 2 * Copyright 2006 The Android Open Source Project 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "SkThread.h" 9 10 int32_t sk_atomic_inc(int32_t* addr) { 11 int32_t value = *addr; 12 *addr = value + 1; 13 return value; 14 } 15 16 int32_t sk_atomic_add(int32_t* addr, int32_t inc) { 17 int32_t value = *addr; 18 *addr = value + inc; 19 return value; 20 } 21 22 int32_t sk_atomic_dec(int32_t* addr) { 23 int32_t value = *addr; 24 *addr = value - 1; 25 return value; 26 } 27 void sk_membar_aquire__after_atomic_dec() { } 28 29 int32_t sk_atomic_conditional_inc(int32_t* addr) { 30 int32_t value = *addr; 31 if (value != 0) ++*addr; 32 return value; 33 } 34 void sk_membar_aquire__after_atomic_conditional_inc() { } 35 36 SkMutex::SkMutex() {} 37 38 SkMutex::~SkMutex() {} 39 40 #ifndef SK_USE_POSIX_THREADS 41 void SkMutex::acquire() {} 42 void SkMutex::release() {} 43 #endif 44
