Panda3D
conditionVarDirect.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file conditionVarDirect.h
10  * @author drose
11  * @date 2006-02-13
12  */
13 
14 #ifndef CONDITIONVARDIRECT_H
15 #define CONDITIONVARDIRECT_H
16 
17 #include "pandabase.h"
18 #include "mutexDirect.h"
19 #include "conditionVarImpl.h"
20 
21 #ifndef DEBUG_THREADS
22 
23 /**
24  * A condition variable, usually used to communicate information about
25  * changing state to a thread that is waiting for something to happen. A
26  * condition variable can be used to "wake up" a thread when some arbitrary
27  * condition has changed.
28  *
29  * A condition variable is associated with a single mutex, and several
30  * condition variables may share the same mutex.
31  */
32 class EXPCL_PANDA_PIPELINE ConditionVarDirect {
33 public:
34  INLINE explicit ConditionVarDirect(MutexDirect &mutex);
35  ConditionVarDirect(const ConditionVarDirect &copy) = delete;
36  ~ConditionVarDirect() = default;
37 
38  ConditionVarDirect &operator = (const ConditionVarDirect &copy) = delete;
39 
40 PUBLISHED:
41  INLINE MutexDirect &get_mutex() const;
42 
43  BLOCKING INLINE void wait();
44  BLOCKING INLINE void wait(double timeout);
45  INLINE void notify();
46  void output(std::ostream &out) const;
47 
48 private:
49  MutexDirect &_mutex;
50  ConditionVarImpl _impl;
51 };
52 
53 INLINE std::ostream &
54 operator << (std::ostream &out, const ConditionVarDirect &cv) {
55  cv.output(out);
56  return out;
57 }
58 
59 #include "conditionVarDirect.I"
60 
61 #endif // !DEBUG_THREADS
62 
63 #endif
A condition variable, usually used to communicate information about changing state to a thread that i...
void output(std::ostream &out) const
This method is declared virtual in ConditionVarDebug, but non-virtual in ConditionVarDirect.
This class implements a standard mutex by making direct calls to the underlying implementation layer.
Definition: mutexDirect.h:30
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.