pthread_barrier.h
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1 /*
2  * Copyright (C) 2014 Freie Universit├Ąt Berlin
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 SYS__POSIX__PTHREAD_BARRIER__H
18 #define SYS__POSIX__PTHREAD_BARRIER__H
19 
20 #include "mutex.h"
21 
22 #ifdef __cplusplus
23 extern "C" {
24 #endif
25 
32 #define PTHREAD_PROCESS_SHARED (0)
33 
39 #define PTHREAD_PROCESS_PRIVATE (1)
40 
45 {
48  volatile int cont;
50 
57 typedef struct
58 {
61  volatile int count;
63 
69 typedef struct
70 {
71  int pshared;
73 
82  const pthread_barrierattr_t *attr,
83  unsigned int count);
84 
93 
101 
109 
117 
124 int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared);
125 
134 
135 #ifdef __cplusplus
136 }
137 #endif
138 
139 #endif /* SYS__POSIX__PTHREAD_BARRIER__H */
140 
mutex_t mutex
Mutex to unlock to wake the thread up.
volatile int count
Wait for N more threads before waking everyone up.
volatile int cont
0 = spurious wake up, 1 = wake up
int16_t kernel_pid_t
Unique process identifier.
Definition: kernel_types.h:83
int pshared
See pthread_barrierattr_setpshared() and pthread_barrierattr_getpshared().
int pthread_barrierattr_getpshared(const pthread_barrierattr_t *attr, int *pshared)
Returns whether the barrier attribute was set to be shared.
int pthread_barrier_destroy(pthread_barrier_t *barrier)
Destroys a pthread_barrier_t.
Details for a pthread_barrier_t.
struct pthread_barrier_waiting_node pthread_barrier_waiting_node_t
Internal structure to store the list of waiting threads.
int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
Set if the barrier should be shared with child processes.
int pthread_barrier_init(pthread_barrier_t *barrier, const pthread_barrierattr_t *attr, unsigned int count)
Initializes a pthread_barrier_t.
int pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
Destroy a pthread_barrierattr_t.
struct pthread_barrier_waiting_node * next
The next waiting thread.
int pthread_barrier_wait(pthread_barrier_t *barrier)
Waiting on a synchronization barrier.
struct pthread_barrier_waiting_node * next
The first waiting thread.
RIOT synchronization API.
Internal structure to store the list of waiting threads.
Mutex structure.
Definition: mutex.h:36
kernel_pid_t pid
The current thread to wake up.
A synchronization barrier.
int pthread_barrierattr_init(pthread_barrierattr_t *attr)
Initialize a pthread_barrierattr_t.