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Thread.h
1 /*
2  * This library is free software; you can redistribute it and/or
3  * modify it under the terms of the GNU Lesser General Public
4  * License as published by the Free Software Foundation; either
5  * version 2.1 of the License, or (at your option) any later version.
6  *
7  * This library is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10  * Lesser General Public License for more details.
11  *
12  * You should have received a copy of the GNU Lesser General Public
13  * License along with this library; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
15  *
16  * Thread.h
17  * A thread object.
18  * Copyright (C) 2010 Simon Newton
19  */
20 
21 #ifndef INCLUDE_OLA_THREAD_THREAD_H_
22 #define INCLUDE_OLA_THREAD_THREAD_H_
23 
24 #include <pthread.h>
25 #include <ola/thread/Mutex.h>
26 
27 namespace ola {
28 namespace thread {
29 
30 typedef pthread_t ThreadId;
31 
35 class Thread {
36  public:
37  Thread(): m_thread_id(), m_running(false) {}
38  virtual ~Thread() {}
39 
40  virtual bool Start();
41  virtual bool FastStart();
42  virtual bool Join(void *ptr = NULL);
43  bool IsRunning();
44 
45  ThreadId Id() const { return m_thread_id; }
46 
47  // Called by pthread_create
48  void *_InternalRun();
49 
50  static inline ThreadId Self() { return pthread_self(); }
51 
52  protected:
53  // Sub classes implement this.
54  virtual void *Run() = 0;
55 
56  private:
57  pthread_t m_thread_id;
58  bool m_running;
59  Mutex m_mutex; // protects m_running
60  ConditionVariable m_condition; // use to wait for the thread to start
61 };
62 } // namespace thread
63 } // namespace ola
64 #endif // INCLUDE_OLA_THREAD_THREAD_H_