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/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __NVGPU_COND_H__
#define __NVGPU_COND_H__
#ifdef __KERNEL__
#include <nvgpu/linux/cond.h>
#endif
/*
* struct nvgpu_cond
*
* Should be implemented per-OS in a separate library
*/
struct nvgpu_cond;
/**
* nvgpu_cond_init - Initialize a condition variable
*
* @cond - The condition variable to initialize
*
* Initialize a condition variable before using it.
*/
int nvgpu_cond_init(struct nvgpu_cond *cond);
/**
* nvgpu_cond_signal - Signal a condition variable
*
* @cond - The condition variable to signal
*
* Wake up a waiter for a condition variable to check if its condition has been
* satisfied.
*
* The waiter is using an uninterruptible wait.
*/
int nvgpu_cond_signal(struct nvgpu_cond *cond);
/**
* nvgpu_cond_signal_interruptible - Signal a condition variable
*
* @cond - The condition variable to signal
*
* Wake up a waiter for a condition variable to check if its condition has been
* satisfied.
*
* The waiter is using an interruptible wait.
*/
int nvgpu_cond_signal_interruptible(struct nvgpu_cond *cond);
/**
* nvgpu_cond_broadcast - Signal all waiters of a condition variable
*
* @cond - The condition variable to signal
*
* Wake up all waiters for a condition variable to check if their conditions
* have been satisfied.
*
* The waiters are using an uninterruptible wait.
*/
int nvgpu_cond_broadcast(struct nvgpu_cond *cond);
/**
* nvgpu_cond_broadcast_interruptible - Signal all waiters of a condition
* variable
*
* @cond - The condition variable to signal
*
* Wake up all waiters for a condition variable to check if their conditions
* have been satisfied.
*
* The waiters are using an interruptible wait.
*/
int nvgpu_cond_broadcast_interruptible(struct nvgpu_cond *cond);
/**
* nvgpu_cond_destroy - Destroy a condition variable
*
* @cond - The condition variable to destroy
*/
void nvgpu_cond_destroy(struct nvgpu_cond *cond);
#endif /* __NVGPU_COND_H__ */
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