auto import from //depot/cupcake/@135843
diff --git a/opengl/libagl/TokenManager.cpp b/opengl/libagl/TokenManager.cpp
new file mode 100644
index 0000000..eea6025
--- /dev/null
+++ b/opengl/libagl/TokenManager.cpp
@@ -0,0 +1,62 @@
+/* libs/opengles/surface.cpp
+**
+** Copyright 2006, The Android Open Source Project
+**
+** 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.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "TokenManager.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+TokenManager::TokenManager()
+{
+ // token 0 is always reserved
+ mTokenizer.reserve(0);
+}
+
+TokenManager::~TokenManager()
+{
+}
+
+status_t TokenManager::getToken(GLsizei n, GLuint *tokens)
+{
+ Mutex::Autolock _l(mLock);
+ for (GLsizei i=0 ; i<n ; i++)
+ *tokens++ = mTokenizer.acquire();
+ return NO_ERROR;
+}
+
+void TokenManager::recycleTokens(GLsizei n, const GLuint *tokens)
+{
+ Mutex::Autolock _l(mLock);
+ for (int i=0 ; i<n ; i++) {
+ const GLuint token = *tokens++;
+ if (token) {
+ mTokenizer.release(token);
+ }
+ }
+}
+
+bool TokenManager::isTokenValid(GLuint token) const
+{
+ Mutex::Autolock _l(mLock);
+ return mTokenizer.isAcquired(token);
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+