1 files changed, 69 insertions, 0 deletions
diff --git a/skia/include/corecg/SkThread.h b/skia/include/corecg/SkThread.h
new file mode 100644
index 0000000..8dc2402
--- /dev/null
+++ b/skia/include/corecg/SkThread.h
@@ -0,0 +1,69 @@
+/* include/corecg/SkThread.h
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkThread_DEFINED
+#define SkThread_DEFINED
+
+#include "SkTypes.h"
+#include "SkThread_platform.h"
+
+/****** SkThread_platform needs to define the following...
+
+int32_t sk_atomic_inc(int32_t*);
+int32_t sk_atomic_dec(int32_t*);
+
+class SkMutex {
+public:
+    SkMutex();
+    ~SkMutex();
+
+    void    acquire();
+    void    release();
+};
+
+****************/
+
+class SkAutoMutexAcquire : SkNoncopyable {
+public:
+    explicit SkAutoMutexAcquire(SkMutex& mutex) : fMutex(&mutex)
+    {
+        SkASSERT(fMutex != NULL);
+        mutex.acquire();
+    }
+    /** If the mutex has not been release, release it now.
+    */
+    ~SkAutoMutexAcquire()
+    {
+        if (fMutex)
+            fMutex->release();
+    }
+    /** If the mutex has not been release, release it now.
+    */
+    void release()
+    {
+        if (fMutex)
+        {
+            fMutex->release();
+            fMutex = NULL;
+        }
+    }
+        
+private:
+    SkMutex* fMutex;
+};
+
+#endif