Initial work

external/android-emugl/shared/emugl/common/testing/test_thread.h

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+// Copyright (C) 2014 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.
+
+#ifndef EMUGL_COMMON_TESTING_TEST_THREAD_H
+#define EMUGL_COMMON_TESTING_TEST_THREAD_H
+
+#ifdef _WIN32
+#  define WIN32_LEAN_AND_MEAN 1
+#  include <windows.h>
+#else
+#  include <pthread.h>
+#endif
+
+namespace emugl {
+
+// Very basic platform thread wrapper that only uses a tiny stack.
+// This shall only be used during unit testing, and allows test code
+// to not depend on the implementation of emugl::Thread.
+class TestThread {
+public:
+    // Main thread function type.
+    typedef void* (ThreadFunction)(void* param);
+
+    // Constructor actually launches a new platform thread.
+    TestThread(ThreadFunction* func, void* funcParam) {
+#ifdef _WIN32
+        mThread = CreateThread(NULL,
+                            16384,
+                            (DWORD WINAPI (*)(void*))func,
+                            funcParam,
+                            0,
+                            NULL);
+#else
+        pthread_attr_t attr;
+        pthread_attr_init(&attr);
+        pthread_attr_setstacksize(&attr, 16384);
+        pthread_create(&mThread,  &attr, func, funcParam);
+        pthread_attr_destroy(&attr);
+#endif
+    }
+
+    ~TestThread() {
+#ifdef _WIN32
+        CloseHandle(mThread);
+#endif
+    }
+
+    void join() {
+#ifdef _WIN32
+        WaitForSingleObject(mThread, INFINITE);
+#else
+        void* ret = NULL;
+        pthread_join(mThread, &ret);
+#endif
+    }
+
+private:
+#ifdef _WIN32
+    HANDLE mThread;
+#else
+    pthread_t mThread;
+#endif
+};
+
+}  // namespace emugl
+
+#endif  // EMUGL_COMMON_TESTING_TEST_THREAD_H