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[DeviceDrivers] Fix the re-work issue in workqueue.

This commit is contained in:
Bernard Xiong 2017-02-27 00:58:11 +08:00
parent 5e20f41638
commit c442db81fc
2 changed files with 143 additions and 88 deletions
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5
components/drivers/include/rtdevice.h
View File

@ -150,8 +150,9 @@ struct rt_data_queue
/* workqueue implementation */
struct rt_workqueue
{
rt_list_t work_list;
rt_thread_t work_thread;
rt_list_t work_list;
struct rt_work *work_current; /* current work */
rt_thread_t work_thread;
};
struct rt_work

226
components/drivers/src/workqueue.c
View File

@ -1,139 +1,193 @@
/*
* File : workqueue.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2017-02-27 bernard fix the re-work issue.
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#ifdef RT_USING_HEAP
static void _workqueue_thread_entry(void* parameter)
{
struct rt_work* work;
struct rt_workqueue* queue;
queue = (struct rt_workqueue*) parameter;
RT_ASSERT(queue != RT_NULL);
rt_base_t level;
struct rt_work* work;
struct rt_workqueue* queue;
while (1)
{
if (rt_list_isempty(&(queue->work_list)))
{
/* no software timer exist, suspend self. */
rt_thread_suspend(rt_thread_self());
rt_schedule();
}
queue = (struct rt_workqueue*) parameter;
RT_ASSERT(queue != RT_NULL);
/* we have work to do with. */
rt_enter_critical();
work = rt_list_entry(queue->work_list.next, struct rt_work, list);
rt_list_remove(&(work->list));
rt_exit_critical();
while (1)
{
if (rt_list_isempty(&(queue->work_list)))
{
/* no software timer exist, suspend self. */
rt_thread_suspend(rt_thread_self());
rt_schedule();
}
/* do work */
work->work_func(work, work->work_data);
}
/* we have work to do with. */
level = rt_hw_interrupt_disable();
work = rt_list_entry(queue->work_list.next, struct rt_work, list);
rt_list_remove(&(work->list));
queue->work_current = work;
rt_hw_interrupt_enable(level);
/* do work */
work->work_func(work, work->work_data);
level = rt_hw_interrupt_disable();
/* clean current work */
queue->work_current = RT_NULL;
rt_hw_interrupt_enable(level);
}
}
struct rt_workqueue *rt_workqueue_create(const char* name, rt_uint16_t stack_size, rt_uint8_t priority)
{
struct rt_workqueue *queue = RT_NULL;
struct rt_workqueue *queue = RT_NULL;
queue = (struct rt_workqueue*)RT_KERNEL_MALLOC(sizeof(struct rt_workqueue));
if (queue != RT_NULL)
{
queue = (struct rt_workqueue*)RT_KERNEL_MALLOC(sizeof(struct rt_workqueue));
if (queue != RT_NULL)
{
/* initialize work list */
rt_list_init(&(queue->work_list));
/* create the work thread */
queue->work_thread = rt_thread_create(name, _workqueue_thread_entry, queue, stack_size, priority, 10);
if (queue->work_thread == RT_NULL)
{
RT_KERNEL_FREE(queue);
return RT_NULL;
}
queue->work_current = RT_NULL;
rt_thread_startup(queue->work_thread);
}
/* create the work thread */
queue->work_thread = rt_thread_create(name, _workqueue_thread_entry, queue, stack_size, priority, 10);
if (queue->work_thread == RT_NULL)
{
RT_KERNEL_FREE(queue);
return RT_NULL;
}
return queue;
rt_thread_startup(queue->work_thread);
}
return queue;
}
rt_err_t rt_workqueue_destroy(struct rt_workqueue* queue)
{
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(queue != RT_NULL);
rt_thread_delete(queue->work_thread);
RT_KERNEL_FREE(queue);
rt_thread_delete(queue->work_thread);
RT_KERNEL_FREE(queue);
return RT_EOK;
return RT_EOK;
}
rt_err_t rt_workqueue_dowork(struct rt_workqueue* queue, struct rt_work* work)
{
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
rt_base_t level;
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
rt_enter_critical();
/* NOTE: the work MUST be initialized firstly */
rt_list_remove(&(work->list));
level = rt_hw_interrupt_disable();
if (queue->work_current == work)
{
rt_hw_interrupt_enable(level);
return -RT_EBUSY;
}
rt_list_insert_after(queue->work_list.prev, &(work->list));
if (queue->work_thread->stat != RT_THREAD_READY)
{
rt_exit_critical();
/* resume work thread */
rt_thread_resume(queue->work_thread);
rt_schedule();
}
else rt_exit_critical();
/* NOTE: the work MUST be initialized firstly */
rt_list_remove(&(work->list));
return RT_EOK;
rt_list_insert_after(queue->work_list.prev, &(work->list));
/* whether the workqueue is doing work */
if (queue->work_current == RT_NULL)
{
rt_hw_interrupt_enable(level);
/* resume work thread */
rt_thread_resume(queue->work_thread);
rt_schedule();
}
else rt_hw_interrupt_enable(level);
return RT_EOK;
}
rt_err_t rt_workqueue_critical_work(struct rt_workqueue* queue, struct rt_work* work)
{
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
rt_base_t level;
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
rt_enter_critical();
/* NOTE: the work MUST be initialized firstly */
rt_list_remove(&(work->list));
level = rt_hw_interrupt_disable();
if (queue->work_current == work)
{
rt_hw_interrupt_enable(level);
return -RT_EBUSY;
}
rt_list_insert_after(queue->work_list.prev, &(work->list));
if (queue->work_thread->stat != RT_THREAD_READY)
{
rt_exit_critical();
/* resume work thread */
rt_thread_resume(queue->work_thread);
rt_schedule();
}
else rt_exit_critical();
/* NOTE: the work MUST be initialized firstly */
rt_list_remove(&(work->list));
return RT_EOK;
rt_list_insert_after(queue->work_list.prev, &(work->list));
if (queue->work_current == RT_NULL)
{
rt_hw_interrupt_enable(level);
/* resume work thread */
rt_thread_resume(queue->work_thread);
rt_schedule();
}
else rt_hw_interrupt_enable(level);
return RT_EOK;
}
rt_err_t rt_workqueue_cancel_work(struct rt_workqueue* queue, struct rt_work* work)
{
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
rt_base_t level;
rt_enter_critical();
rt_list_remove(&(work->list));
rt_exit_critical();
RT_ASSERT(queue != RT_NULL);
RT_ASSERT(work != RT_NULL);
return RT_EOK;
level = rt_hw_interrupt_disable();
if (queue->work_current == work)
{
rt_hw_interrupt_enable(level);
return -RT_EBUSY;
}
rt_list_remove(&(work->list));
rt_hw_interrupt_enable(level);
return RT_EOK;
}
rt_err_t rt_workqueue_cancel_all_work(struct rt_workqueue* queue)
{
struct rt_list_node *node, *next;
RT_ASSERT(queue != RT_NULL);
struct rt_list_node *node, *next;
RT_ASSERT(queue != RT_NULL);
rt_enter_critical();
for (node = queue->work_list.next; node != &(queue->work_list); node = next)
{
next = node->next;
rt_list_remove(node);
}
rt_exit_critical();
rt_enter_critical();
for (node = queue->work_list.next; node != &(queue->work_list); node = next)
{
next = node->next;
rt_list_remove(node);
}
rt_exit_critical();
return RT_EOK;
return RT_EOK;
}
#endif