Initial work

external/android-emugl/shared/OpenglCodecCommon/ChecksumCalculatorThreadInfo.h

@@ -0,0 +1,56 @@
+/*
+* Copyright (C) 2016 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.
+*/
+
+#pragma once
+
+#include "ChecksumCalculator.h"
+
+// ChecksumCalculatorThreadInfo is the class that makes ChecksumCalculator
+// thread-safe. On the host, please only use ChecksumCalculator through this
+// class.
+
+class ChecksumCalculatorThreadInfo {
+public:
+    ChecksumCalculatorThreadInfo();
+    ~ChecksumCalculatorThreadInfo();
+
+    static uint32_t getVersion();
+    static bool setVersion(uint32_t version);
+
+    static uint32_t getMaxVersion();
+    static const char* getMaxVersionString() {
+        return ChecksumCalculator::getMaxVersionStr();
+    }
+
+    static size_t checksumByteSize();
+    static bool writeChecksum(void* buf,
+                              size_t bufLen,
+                              void* outputChecksum,
+                              size_t outputChecksumLen);
+
+    static bool validate(void* buf,
+                         size_t bufLen,
+                         void* checksum,
+                         size_t checksumLen);
+    static void validOrDie(void* buf,
+                           size_t bufLen,
+                           void* checksum,
+                           size_t checksumLen,
+                           const char* message);
+
+private:
+    ChecksumCalculator m_protocol;
+};