init libxcam source code
diff --git a/xcore/xcam_thread.h b/xcore/xcam_thread.h
new file mode 100644
index 0000000..248d883
--- /dev/null
+++ b/xcore/xcam_thread.h
@@ -0,0 +1,63 @@
+/*
+ * xcam_thread.h - Thread
+ *
+ * Copyright (c) 2014 Intel Corporation
+ *
+ * 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.
+ *
+ * Author: Wind Yuan <feng.yuan@intel.com>
+ */
+
+#ifndef XCAM_THREAD_H
+#define XCAM_THREAD_H
+
+#include <pthread.h>
+#include "xcam_defs.h"
+#include "xcam_common.h"
+#include "xcam_mutex.h"
+
+namespace XCam {
+
+class Thread {
+public:
+ Thread (const char *name = NULL);
+ virtual ~Thread ();
+
+ bool start ();
+ bool stop ();
+ bool is_running ();
+
+protected:
+ // return true to start loop, else the thread stopped
+ virtual bool started ();
+ virtual void stopped ();
+ // return true to continue; false to stop
+ virtual bool loop () = 0;
+private:
+ XCAM_DEAD_COPY (Thread);
+
+
+private:
+ static int thread_func (void *user_data);
+
+private:
+ char *_name;
+ pthread_t _thread_id;
+ XCam::Mutex _mutex;
+ XCam::Cond _exit_cond;
+ bool _started;
+};
+
+};
+
+#endif //XCAM_THREAD_H