2 * Copyright 2012 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #ifndef SkCondVar_DEFINED
9 #define SkCondVar_DEFINED
11 #ifdef SK_USE_POSIX_THREADS
13 #elif defined(SK_BUILD_FOR_WIN32)
18 * Condition variable for blocking access to shared data from other threads and
19 * controlling which threads are awake.
21 * Currently only supported on platforms with posix threads and Windows Vista and
30 * Lock a mutex. Must be done before calling the other functions on this object.
40 * Pause the calling thread. Will be awoken when signal() or broadcast() is called.
41 * Must be called while lock() is held (but gives it up while waiting). Once awoken,
42 * the calling thread will hold the lock once again.
47 * Wake one thread waiting on this condition. Must be called while lock()
53 * Wake all threads waiting on this condition. Must be called while lock()
59 #ifdef SK_USE_POSIX_THREADS
60 pthread_mutex_t fMutex;
62 #elif defined(SK_BUILD_FOR_WIN32)
63 CRITICAL_SECTION fCriticalSection;
64 CONDITION_VARIABLE fCondition;