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/* Copyright (c) 2013, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP execution barriers
*/
#ifndef ODP_API_BARRIER_H_
#define ODP_API_BARRIER_H_
#include <odp/visibility_begin.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup odp_barrier ODP BARRIER
* Thread execution and memory ordering barriers.
*
* @details
* <b> Thread execution barrier (odp_barrier_t) </b>
*
* Thread execution barrier synchronizes a group of threads to wait on the
* barrier until the entire group has reached the barrier.
* @{
*/
/**
* @typedef odp_barrier_t
* ODP thread synchronization barrier
*/
/**
* Initialize barrier with thread count.
*
* @param barr Pointer to a barrier variable
* @param count Thread count
*/
void odp_barrier_init(odp_barrier_t *barr, int count);
/**
* Synchronize thread execution on barrier.
* Wait for all threads to arrive at the barrier until they are let loose again.
* Threads will block (spin) until the last thread has arrived at the barrier.
* All memory operations before the odp_barrier_wait() call will be visible
* to all threads when they leave the barrier.
*
* @param barr Pointer to a barrier variable
*/
void odp_barrier_wait(odp_barrier_t *barr);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#include <odp/visibility_end.h>
#endif
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