/*
|
* 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 <xcam_std.h>
|
#include <xcam_mutex.h>
|
|
namespace XCam {
|
|
class Thread {
|
public:
|
Thread (const char *name = NULL);
|
virtual ~Thread ();
|
|
bool start ();
|
virtual bool emit_stop ();
|
bool stop ();
|
bool is_running ();
|
const char *get_name () const {
|
return _name;
|
}
|
|
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;
|
bool _stopped;
|
};
|
|
};
|
|
#endif //XCAM_THREAD_H
|
