1 files changed, 68 insertions, 0 deletions
diff --git a/utils/SkCondVar.cpp b/utils/SkCondVar.cpp
new file mode 100644
index 00000000..5d001c0e
--- /dev/null
+++ b/utils/SkCondVar.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkCondVar.h"
+
+SkCondVar::SkCondVar() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_mutex_init(&fMutex, NULL /* default mutex attr */);
+    pthread_cond_init(&fCond, NULL /* default cond attr */);
+#elif defined(SK_BUILD_FOR_WIN32)
+    InitializeCriticalSection(&fCriticalSection);
+    InitializeConditionVariable(&fCondition);
+#endif
+}
+
+SkCondVar::~SkCondVar() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_mutex_destroy(&fMutex);
+    pthread_cond_destroy(&fCond);
+#elif defined(SK_BUILD_FOR_WIN32)
+    DeleteCriticalSection(&fCriticalSection);
+    // No need to clean up fCondition.
+#endif
+}
+
+void SkCondVar::lock() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_mutex_lock(&fMutex);
+#elif defined(SK_BUILD_FOR_WIN32)
+    EnterCriticalSection(&fCriticalSection);
+#endif
+}
+
+void SkCondVar::unlock() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_mutex_unlock(&fMutex);
+#elif defined(SK_BUILD_FOR_WIN32)
+    LeaveCriticalSection(&fCriticalSection);
+#endif
+}
+
+void SkCondVar::wait() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_cond_wait(&fCond, &fMutex);
+#elif defined(SK_BUILD_FOR_WIN32)
+    SleepConditionVariableCS(&fCondition, &fCriticalSection, INFINITE);
+#endif
+}
+
+void SkCondVar::signal() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_cond_signal(&fCond);
+#elif defined(SK_BUILD_FOR_WIN32)
+    WakeConditionVariable(&fCondition);
+#endif
+}
+
+void SkCondVar::broadcast() {
+#ifdef SK_USE_POSIX_THREADS
+    pthread_cond_broadcast(&fCond);
+#elif defined(SK_BUILD_FOR_WIN32)
+    WakeAllConditionVariable(&fCondition);
+#endif
+}