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/*
* Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "os_thread.h"
#include "os_util.h"
/**
* @brief Create and start a thread
*
* This function starts a new thread. The new thread starts execution by
* invoking entry(). The argument arg is passed as the sole argument of entry().
*
* @note After finishing execution, the new thread should call OS_ThreadDelete()
* to delete itself. Failing to do this and just returning from entry()
* will result in undefined behavior.
*
* @param[in] thread Pointer to the thread object
* @param[in] name A descriptive name for the thread. This is mainly used to
* facilitate debugging.
* @param[in] entry Entry, which is a function pointer, to the thread function
* @param[in] arg The sole argument passed to entry()
* @param[in] priority The priority at which the thread will execute
* @param[in] stackSize The number of bytes the thread stack can hold
* @retval OS_Status, OS_OK on success
*/
OS_Status OS_ThreadCreate(OS_Thread_t *thread, const char *name,
OS_ThreadEntry_t entry, void *arg,
OS_Priority priority, uint32_t stackSize)
{
OS_HANDLE_ASSERT(!OS_ThreadIsValid(thread), thread->handle);
thread->handle = rt_thread_create(name, entry, arg, stackSize,
priority, 20);
OS_DBG("%s(), name \"%s\", priority %d, stackSize %u, handle %p\n",
__func__, name, priority, (unsigned int)stackSize, thread->handle);
if (thread->handle == NULL) {
OS_ERR("rt_thread_create() failed!\n");
OS_ThreadSetInvalid(thread);
return OS_FAIL;
} else {
rt_thread_startup(thread->handle);
}
return OS_OK;
}
/**
* @brief Terminate the thread
* @note Only memory that is allocated to a thread by the kernel itself is
* automatically freed when a thread is deleted. Memory, or any other
* resource, that the application (rather than the kernel) allocates
* to a thread must be explicitly freed by the application when the task
* is deleted.
* @param[in] thread Pointer to the thread object to be deleted.
* A thread can delete itself by passing NULL in place of a
* valid thread object.
* @retval OS_Status, OS_OK on success
*/
OS_Status OS_ThreadDelete(OS_Thread_t *thread)
{
rt_thread_t handle;
rt_thread_t curHandle;
OS_DBG("%s(), handle %p\n", __func__, thread->handle);
if (thread == NULL) {
// vTaskDelete(NULL); /* delete self */
// OS_ERR("thread == NULL, %s delete self NC\n", __FUNCTION__);
return OS_OK;
}
OS_HANDLE_ASSERT(OS_ThreadIsValid(thread), thread->handle);
handle = thread->handle;
curHandle = OS_ThreadGetCurrentHandle();
if (handle == curHandle) {
/* delete self */
OS_ThreadSetInvalid(thread);
// vTaskDelete(NULL);
// OS_ERR("%s delete self NC\r\n", __FUNCTION__);
} else {
/* delete other thread */
OS_WRN("thread %"OS_HANDLE_F" delete %"OS_HANDLE_F"\n", curHandle, handle);
// vTaskDelete(handle);
rt_thread_delete(handle);
OS_ThreadSetInvalid(thread);
}
return OS_OK;
}
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