zephyr/lib/posix/pthread_barrier.c
Ramakrishna Pallala f603e603bb lib: posix: Move posix layer from 'kernel' to 'lib'
Move posix layer from 'kernel' to 'lib' folder as it is not
a core kernel feature.

Fixed posix header file dependencies as part of the move and
also removed NEWLIBC related macros from posix headers.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-04-05 16:43:05 -04:00

38 lines
603 B
C

/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <kernel.h>
#include <posix/pthread.h>
#include <ksched.h>
#include <wait_q.h>
#include <kswap.h>
void ready_one_thread(_wait_q_t *wq);
int pthread_barrier_wait(pthread_barrier_t *b)
{
int key = irq_lock();
b->count++;
if (b->count >= b->max) {
b->count = 0;
while (!sys_dlist_is_empty(&b->wait_q)) {
ready_one_thread(&b->wait_q);
}
if (!__must_switch_threads()) {
irq_unlock(key);
return 0;
}
} else {
_pend_current_thread(&b->wait_q, K_FOREVER);
}
return _Swap(key);
}