pthread_cond.h
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1 /*
2  * Copyright (C) 2014 Hamburg University of Applied Sciences (HAW)
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser
5  * General Public License v2.1. See the file LICENSE in the top level
6  * directory for more details.
7  */
8 
17 #ifndef PTHREAD_COND_H
18 #define PTHREAD_COND_H
19 
20 #include <time.h>
21 #include "mutex.h"
22 #include "priority_queue.h"
23 
24 #if defined(__WITH_AVRLIBC__)
25 /* avr-libc 'time.h' does not include 'sys/types.h' but we need 'clockid_t' */
26 # include <sys/types.h>
27 #endif
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
36 typedef struct {
38  int __dummy;
40 
46 typedef struct {
49 
56 
63 
71 int pthread_condattr_getpshared(const pthread_condattr_t *attr, int *pshared);
72 
81 
89 int pthread_condattr_getclock(const pthread_condattr_t *attr, clockid_t *clock_id);
90 
98 int pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id);
99 
107 
114 
122 
130 int pthread_cond_timedwait(pthread_cond_t *cond, mutex_t *mutex, const struct timespec *abstime);
131 
138 
145 
146 #ifdef __cplusplus
147 }
148 #endif
149 
150 #endif /* PTHREAD_COND_H */
151 
Mutex for thread synchronization.
A simple priority queue.
int pthread_condattr_getclock(const pthread_condattr_t *attr, clockid_t *clock_id)
Get the clock selected for the condition variable attribute attr.
int pthread_condattr_setpshared(pthread_condattr_t *attr, int pshared)
Set the process-shared attribute in an initialized attributes object referenced by attr.
int pthread_cond_signal(pthread_cond_t *cond)
unblock at least one of the threads that are blocked on the specified condition variable cond
int pthread_cond_condattr_destroy(pthread_condattr_t *attr)
Uninitializes a condition attribute variable object.
int pthread_cond_destroy(pthread_cond_t *cond)
Destroy the condition variable cond.
int pthread_cond_condattr_init(pthread_condattr_t *attr)
Initializes a condition attribute variable object using default values.
int pthread_condattr_setclock(pthread_condattr_t *attr, clockid_t clock_id)
Set the clock selected for the condition variable attribute ATTR.
int pthread_cond_init(pthread_cond_t *cond, pthread_condattr_t *attr)
Initializes a condition variable object.
int pthread_cond_timedwait(pthread_cond_t *cond, mutex_t *mutex, const struct timespec *abstime)
blocks the calling thread until the specified condition cond is signalled
int pthread_cond_wait(pthread_cond_t *cond, mutex_t *mutex)
blocks the calling thread until the specified condition cond is signalled
int pthread_cond_broadcast(pthread_cond_t *cond)
unblock all threads that are currently blocked on the specified condition variable cond
int pthread_condattr_getpshared(const pthread_condattr_t *attr, int *pshared)
Get the process-shared attribute in an initialized attributes object referenced by attr.
Mutex structure.
Definition: mutex.h:146
data type for priority queues
Condition variable.
Definition: pthread_cond.h:46
priority_queue_t queue
Threads currently waiting to be signaled.
Definition: pthread_cond.h:47
int __dummy
dumdidum
Definition: pthread_cond.h:38