35 lines
681 B
C
35 lines
681 B
C
/*
|
|
* Copyright (c) 2017 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <zephyr/kernel.h>
|
|
#include <zephyr/posix/pthread.h>
|
|
#include <ksched.h>
|
|
#include <zephyr/wait_q.h>
|
|
|
|
extern struct k_spinlock z_pthread_spinlock;
|
|
|
|
int pthread_barrier_wait(pthread_barrier_t *b)
|
|
{
|
|
k_spinlock_key_t key = k_spin_lock(&z_pthread_spinlock);
|
|
int ret = 0;
|
|
|
|
b->count++;
|
|
|
|
if (b->count >= b->max) {
|
|
b->count = 0;
|
|
|
|
while (z_waitq_head(&b->wait_q)) {
|
|
_ready_one_thread(&b->wait_q);
|
|
}
|
|
z_reschedule(&z_pthread_spinlock, key);
|
|
ret = PTHREAD_BARRIER_SERIAL_THREAD;
|
|
} else {
|
|
(void) z_pend_curr(&z_pthread_spinlock, key, &b->wait_q, K_FOREVER);
|
|
}
|
|
|
|
return ret;
|
|
}
|