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/*
* Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef NVGPU_COND_H
#define NVGPU_COND_H
#ifdef __KERNEL__
#include <nvgpu/linux/cond.h>
#elif defined(__NVGPU_POSIX__)
#include <nvgpu/posix/cond.h>
#else
#include <nvgpu_rmos/include/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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