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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_THREAD_H
#define NVGPU_THREAD_H
#ifdef __KERNEL__
#include <nvgpu/linux/thread.h>
#elif defined(__NVGPU_POSIX__)
#include <nvgpu/posix/thread.h>
#else
#include <nvgpu_rmos/include/thread.h>
#endif
#include <nvgpu/types.h>
/**
* nvgpu_thread_create - Create and run a new thread.
*
* @thread - thread structure to use
* @data - data to pass to threadfn
* @threadfn - Thread function
* @name - name of the thread
*
* Create a thread and run threadfn in it. The thread stays alive as long as
* threadfn is running. As soon as threadfn returns the thread is destroyed.
*
* threadfn needs to continuously poll nvgpu_thread_should_stop() to determine
* if it should exit.
*/
int nvgpu_thread_create(struct nvgpu_thread *thread,
void *data,
int (*threadfn)(void *data), const char *name);
/**
* nvgpu_thread_stop - Destroy or request to destroy a thread
*
* @thread - thread to stop
*
* Request a thread to stop by setting nvgpu_thread_should_stop() to
* true and wait for thread to exit.
*/
void nvgpu_thread_stop(struct nvgpu_thread *thread);
/**
* nvgpu_thread_should_stop - Query if thread should stop
*
* @thread
*
* Return true if thread should exit. Can be run only in the thread's own
* context and with the thread as parameter.
*/
bool nvgpu_thread_should_stop(struct nvgpu_thread *thread);
/**
* nvgpu_thread_is_running - Query if thread is running
*
* @thread
*
* Return true if thread is started.
*/
bool nvgpu_thread_is_running(struct nvgpu_thread *thread);
/**
* nvgpu_thread_join - join a thread to reclaim resources
* after it has exited
*
* @thread - thread to join
*
*/
void nvgpu_thread_join(struct nvgpu_thread *thread);
#endif /* NVGPU_THREAD_H */
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