Qore Programming Language  0.9.16
QoreCondition.h
1 /* -*- mode: c++; indent-tabs-mode: nil -*- */
2 /*
3  QoreCondition.h
4 
5  Qore Programming Language
6 
7  Copyright (C) 2005 - 2020 Qore Technologies, s.r.o.
8 
9  Permission is hereby granted, free of charge, to any person obtaining a
10  copy of this software and associated documentation files (the "Software"),
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14  Software is furnished to do so, subject to the following conditions:
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16  The above copyright notice and this permission notice shall be included in
17  all copies or substantial portions of the Software.
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27  Note that the Qore library is released under a choice of three open-source
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30 */
31 
32 #ifndef _QORE_QORECONDITION_H
33 
34 #define _QORE_QORECONDITION_H
35 
36 #include <pthread.h>
37 #include <sys/time.h>
38 
39 #include <qore/QoreThreadLock.h>
40 
42 
46 private:
48  pthread_cond_t c;
49 
51  DLLLOCAL QoreCondition(const QoreCondition&);
52 
54  DLLLOCAL QoreCondition& operator=(const QoreCondition&);
55 
56 public:
58  DLLEXPORT QoreCondition();
59 
61  DLLEXPORT ~QoreCondition();
62 
64  DLLEXPORT int signal();
65 
67  DLLEXPORT int broadcast();
68 
70 
75  DLLEXPORT int wait(pthread_mutex_t* m);
76 
78 
86  DLLEXPORT int wait(pthread_mutex_t* m, int timeout_ms);
87 
89 
95  DLLEXPORT int wait2(pthread_mutex_t* m, int64 timeout_ms);
96 
98 
103  DLLLOCAL int wait(QoreThreadLock* l) {
104  return wait(&l->ptm_lock);
105  }
106 
108 
116  DLLLOCAL int wait(QoreThreadLock* l, int timeout_ms) {
117  return wait(&l->ptm_lock, timeout_ms);
118  }
119 
121 
127  DLLLOCAL int wait2(QoreThreadLock* l, int64 timeout_ms) {
128  return wait2(&l->ptm_lock, timeout_ms);
129  }
130 
132 
137  DLLLOCAL int wait(QoreThreadLock& l) {
138  return wait(&l);
139  }
140 
142 
150  DLLLOCAL int wait(QoreThreadLock& l, int timeout_ms) {
151  return wait(&l, timeout_ms);
152  }
153 
155 
161  DLLLOCAL int wait2(QoreThreadLock& l, int64 timeout_ms) {
162  return wait2(&l, timeout_ms);
163  }
164 };
165 
166 #endif // QORE_CONDITION
QoreCondition::QoreCondition
DLLEXPORT QoreCondition()
creates the condition object
QoreCondition
a thread condition class implementing a wrapper for pthread_cond_t
Definition: QoreCondition.h:45
int64
long long int64
64bit integer type, cannot use int64_t here since it breaks the API on some 64-bit systems due to equ...
Definition: common.h:260
QoreCondition::broadcast
DLLEXPORT int broadcast()
singles all threads blocked on this condition to wake up
QoreCondition::signal
DLLEXPORT int signal()
signals a single waiting thread to wake up
QoreThreadLock
provides a mutually-exclusive thread lock
Definition: QoreThreadLock.h:49
QoreCondition::~QoreCondition
DLLEXPORT ~QoreCondition()
destroys the condition object
QoreCondition::wait
DLLEXPORT int wait(pthread_mutex_t *m)
blocks a thread on a mutex until the condition is signaled
QoreCondition::wait2
DLLEXPORT int wait2(pthread_mutex_t *m, int64 timeout_ms)
blocks a thread on a mutex for a certain number of milliseconds until the condition is signaled