mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2026-09-24 22:04:54 +08:00
🎯 Sync smart & scheduler codes (#8537)
Signed-off-by: Shell <smokewood@qq.com> Co-authored-by: xqyjlj <xqyjlj@126.com>
This commit is contained in:
@@ -21,9 +21,7 @@ static void _rt_pipe_resume_writer(struct rt_audio_pipe *pipe)
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RT_ASSERT(pipe->flag & RT_PIPE_FLAG_BLOCK_WR);
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/* get suspended thread */
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thread = rt_list_entry(pipe->suspended_write_list.next,
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struct rt_thread,
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tlist);
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thread = RT_THREAD_LIST_NODE_ENTRY(pipe->suspended_write_list.next);
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/* resume the write thread */
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rt_thread_resume(thread);
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@@ -73,7 +71,7 @@ static rt_ssize_t rt_pipe_read(rt_device_t dev,
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rt_thread_suspend(thread);
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/* waiting on suspended read list */
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rt_list_insert_before(&(pipe->suspended_read_list),
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&(thread->tlist));
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&RT_THREAD_LIST_NODE(thread));
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rt_hw_interrupt_enable(level);
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rt_schedule();
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@@ -103,9 +101,7 @@ static void _rt_pipe_resume_reader(struct rt_audio_pipe *pipe)
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RT_ASSERT(pipe->flag & RT_PIPE_FLAG_BLOCK_RD);
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/* get suspended thread */
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thread = rt_list_entry(pipe->suspended_read_list.next,
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struct rt_thread,
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tlist);
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thread = RT_THREAD_LIST_NODE_ENTRY(pipe->suspended_read_list.next);
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/* resume the read thread */
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rt_thread_resume(thread);
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@@ -161,7 +157,7 @@ static rt_ssize_t rt_pipe_write(rt_device_t dev,
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rt_thread_suspend(thread);
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/* waiting on suspended read list */
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rt_list_insert_before(&(pipe->suspended_write_list),
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&(thread->tlist));
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&RT_THREAD_LIST_NODE(thread));
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rt_hw_interrupt_enable(level);
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rt_schedule();
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@@ -13,18 +13,22 @@
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#include <rtconfig.h>
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/**
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* Completion
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* Completion - A tiny IPC implementation for resource-constrained scenarios
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*
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* It's an IPC using one CPU word with the encoding:
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*
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* BIT | MAX-1 ----------------- 1 | 0 |
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* CONTENT | suspended_thread & ~1 | completed flag |
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*/
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struct rt_completion
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{
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rt_uint32_t flag;
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/* suspended list */
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rt_list_t suspended_list;
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struct rt_spinlock spinlock;
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/* suspended thread, and completed flag */
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rt_base_t susp_thread_n_flag;
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};
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#define RT_COMPLETION_INIT(comp) {0}
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void rt_completion_init(struct rt_completion *completion);
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rt_err_t rt_completion_wait(struct rt_completion *completion,
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rt_int32_t timeout);
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@@ -8,6 +8,6 @@ if not GetDepend('RT_USING_HEAP'):
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SrcRemove(src, 'dataqueue.c')
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SrcRemove(src, 'pipe.c')
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group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_DEVICE_IPC'], CPPPATH = CPPPATH)
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group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_DEVICE_IPC'], CPPPATH = CPPPATH, LOCAL_CPPDEFINES=['__RT_IPC_SOURCE__'])
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Return('group')
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@@ -8,13 +8,24 @@
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* 2012-09-30 Bernard first version.
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* 2021-08-18 chenyingchun add comments
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* 2023-09-15 xqyjlj perf rt_hw_interrupt_disable/enable
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* 2024-01-25 Shell reduce resource usage in completion for better synchronization
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* and smaller footprint.
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*/
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#define DBG_TAG "drivers.ipc"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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#include <rthw.h>
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#include <rtdevice.h>
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#define RT_COMPLETED 1
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#define RT_UNCOMPLETED 0
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#define RT_COMPLETION_FLAG(comp) ((comp)->susp_thread_n_flag & 1)
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#define RT_COMPLETION_THREAD(comp) ((rt_thread_t)((comp)->susp_thread_n_flag & ~1))
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#define RT_COMPLETION_NEW_STAT(thread, flag) (((flag) & 1) | (((rt_base_t)thread) & ~1))
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static struct rt_spinlock _completion_lock = RT_SPINLOCK_INIT;
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/**
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* @brief This function will initialize a completion object.
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@@ -23,14 +34,9 @@
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*/
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void rt_completion_init(struct rt_completion *completion)
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{
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rt_base_t level;
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RT_ASSERT(completion != RT_NULL);
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rt_spin_lock_init(&(completion->spinlock));
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level = rt_spin_lock_irqsave(&(completion->spinlock));
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completion->flag = RT_UNCOMPLETED;
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rt_list_init(&completion->suspended_list);
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rt_spin_unlock_irqrestore(&(completion->spinlock), level);
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completion->susp_thread_n_flag = RT_COMPLETION_NEW_STAT(RT_NULL, RT_UNCOMPLETED);
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}
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RTM_EXPORT(rt_completion_init);
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@@ -64,11 +70,11 @@ rt_err_t rt_completion_wait(struct rt_completion *completion,
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result = RT_EOK;
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thread = rt_thread_self();
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level = rt_spin_lock_irqsave(&(completion->spinlock));
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if (completion->flag != RT_COMPLETED)
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level = rt_spin_lock_irqsave(&_completion_lock);
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if (RT_COMPLETION_FLAG(completion) != RT_COMPLETED)
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{
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/* only one thread can suspend on complete */
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RT_ASSERT(rt_list_isempty(&(completion->suspended_list)));
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RT_ASSERT(RT_COMPLETION_THREAD(completion) == RT_NULL);
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if (timeout == 0)
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{
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@@ -81,40 +87,43 @@ rt_err_t rt_completion_wait(struct rt_completion *completion,
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thread->error = RT_EOK;
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/* suspend thread */
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rt_thread_suspend_with_flag(thread, RT_UNINTERRUPTIBLE);
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/* add to suspended list */
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rt_list_insert_before(&(completion->suspended_list),
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&(thread->tlist));
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/* current context checking */
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RT_DEBUG_NOT_IN_INTERRUPT;
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/* start timer */
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if (timeout > 0)
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result = rt_thread_suspend_with_flag(thread, RT_UNINTERRUPTIBLE);
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if (result == RT_EOK)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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/* add to suspended thread */
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completion->susp_thread_n_flag = RT_COMPLETION_NEW_STAT(thread, RT_UNCOMPLETED);
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/* current context checking */
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RT_DEBUG_NOT_IN_INTERRUPT;
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/* start timer */
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if (timeout > 0)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&_completion_lock, level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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result = thread->error;
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level = rt_spin_lock_irqsave(&_completion_lock);
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&(completion->spinlock), level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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result = thread->error;
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level = rt_spin_lock_irqsave(&(completion->spinlock));
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}
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}
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/* clean completed flag */
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completion->flag = RT_UNCOMPLETED;
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/* clean completed flag & remove susp_thread on the case of waking by timeout */
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completion->susp_thread_n_flag = RT_COMPLETION_NEW_STAT(RT_NULL, RT_UNCOMPLETED);
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__exit:
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rt_spin_unlock_irqrestore(&(completion->spinlock), level);
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rt_spin_unlock_irqrestore(&_completion_lock, level);
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return result;
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}
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@@ -128,35 +137,33 @@ RTM_EXPORT(rt_completion_wait);
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void rt_completion_done(struct rt_completion *completion)
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{
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rt_base_t level;
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rt_err_t error;
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rt_thread_t suspend_thread;
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RT_ASSERT(completion != RT_NULL);
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if (completion->flag == RT_COMPLETED)
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level = rt_spin_lock_irqsave(&_completion_lock);
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if (RT_COMPLETION_FLAG(completion) == RT_COMPLETED)
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{
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rt_spin_unlock_irqrestore(&_completion_lock, level);
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return;
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}
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level = rt_spin_lock_irqsave(&(completion->spinlock));
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completion->flag = RT_COMPLETED;
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if (!rt_list_isempty(&(completion->suspended_list)))
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suspend_thread = RT_COMPLETION_THREAD(completion);
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if (suspend_thread)
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{
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/* there is one thread in suspended list */
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struct rt_thread *thread;
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/* get thread entry */
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thread = rt_list_entry(completion->suspended_list.next,
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struct rt_thread,
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tlist);
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/* resume it */
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rt_thread_resume(thread);
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rt_spin_unlock_irqrestore(&(completion->spinlock), level);
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error = rt_thread_resume(suspend_thread);
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if (error)
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{
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LOG_D("%s: failed to resume thread", __func__);
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}
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}
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/* perform a schedule */
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rt_schedule();
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}
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else
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{
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rt_spin_unlock_irqrestore(&(completion->spinlock), level);
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}
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completion->susp_thread_n_flag = RT_COMPLETION_NEW_STAT(RT_NULL, RT_COMPLETED);
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rt_spin_unlock_irqrestore(&_completion_lock, level);
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}
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RTM_EXPORT(rt_completion_done);
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@@ -8,6 +8,7 @@
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* 2012-09-30 Bernard first version.
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* 2016-10-31 armink fix some resume push and pop thread bugs
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* 2023-09-15 xqyjlj perf rt_hw_interrupt_disable/enable
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* 2024-01-25 Shell porting to susp_list API
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*/
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#include <rthw.h>
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@@ -121,27 +122,32 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
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thread->error = RT_EOK;
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/* suspend thread on the push list */
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rt_thread_suspend_with_flag(thread, RT_UNINTERRUPTIBLE);
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rt_list_insert_before(&(queue->suspended_push_list), &(thread->tlist));
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/* start timer */
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if (timeout > 0)
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result = rt_thread_suspend_to_list(thread, &queue->suspended_push_list,
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RT_IPC_FLAG_FIFO, RT_UNINTERRUPTIBLE);
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if (result == RT_EOK)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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/* start timer */
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if (timeout > 0)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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level = rt_spin_lock_irqsave(&(queue->spinlock));
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/* error may be modified by waker, so take the lock before accessing it */
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result = thread->error;
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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result = thread->error;
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level = rt_spin_lock_irqsave(&(queue->spinlock));
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if (result != RT_EOK) goto __exit;
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}
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@@ -159,15 +165,10 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
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}
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/* there is at least one thread in suspended list */
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if (!rt_list_isempty(&(queue->suspended_pop_list)))
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if (rt_susp_list_dequeue(&queue->suspended_push_list,
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RT_THREAD_RESUME_RES_THR_ERR))
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{
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/* get thread entry */
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thread = rt_list_entry(queue->suspended_pop_list.next,
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struct rt_thread,
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tlist);
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/* resume it */
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rt_thread_resume(thread);
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/* unlock and perform a schedule */
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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/* perform a schedule */
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@@ -239,29 +240,32 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
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thread->error = RT_EOK;
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/* suspend thread on the pop list */
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rt_thread_suspend_with_flag(thread, RT_UNINTERRUPTIBLE);
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rt_list_insert_before(&(queue->suspended_pop_list), &(thread->tlist));
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/* start timer */
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if (timeout > 0)
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result = rt_thread_suspend_to_list(thread, &queue->suspended_pop_list,
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RT_IPC_FLAG_FIFO, RT_UNINTERRUPTIBLE);
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if (result == RT_EOK)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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/* start timer */
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if (timeout > 0)
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{
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/* reset the timeout of thread timer and start it */
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rt_timer_control(&(thread->thread_timer),
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RT_TIMER_CTRL_SET_TIME,
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&timeout);
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rt_timer_start(&(thread->thread_timer));
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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level = rt_spin_lock_irqsave(&(queue->spinlock));
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result = thread->error;
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if (result != RT_EOK)
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goto __exit;
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}
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/* enable interrupt */
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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/* do schedule */
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rt_schedule();
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/* thread is waked up */
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result = thread->error;
|
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level = rt_spin_lock_irqsave(&(queue->spinlock));
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if (result != RT_EOK)
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goto __exit;
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}
|
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*data_ptr = queue->queue[queue->get_index].data_ptr;
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@@ -280,15 +284,10 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
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if (rt_data_queue_len(queue) <= queue->lwm)
|
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{
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/* there is at least one thread in suspended list */
|
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if (!rt_list_isempty(&(queue->suspended_push_list)))
|
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if (rt_susp_list_dequeue(&queue->suspended_push_list,
|
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RT_THREAD_RESUME_RES_THR_ERR))
|
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{
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/* get thread entry */
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thread = rt_list_entry(queue->suspended_push_list.next,
|
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struct rt_thread,
|
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tlist);
|
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|
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/* resume it */
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rt_thread_resume(thread);
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/* unlock and perform a schedule */
|
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
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|
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/* perform a schedule */
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@@ -364,7 +363,6 @@ RTM_EXPORT(rt_data_queue_peek);
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void rt_data_queue_reset(struct rt_data_queue *queue)
|
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{
|
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rt_base_t level;
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struct rt_thread *thread;
|
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|
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RT_ASSERT(queue != RT_NULL);
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RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
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@@ -382,52 +380,13 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
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/* wakeup all suspend threads */
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/* resume on pop list */
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while (!rt_list_isempty(&(queue->suspended_pop_list)))
|
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{
|
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/* disable interrupt */
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level = rt_spin_lock_irqsave(&(queue->spinlock));
|
||||
|
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/* get next suspend thread */
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thread = rt_list_entry(queue->suspended_pop_list.next,
|
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struct rt_thread,
|
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tlist);
|
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/* set error code to -RT_ERROR */
|
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thread->error = -RT_ERROR;
|
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|
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/*
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* resume thread
|
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* In rt_thread_resume function, it will remove current thread from
|
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* suspend list
|
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*/
|
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rt_thread_resume(thread);
|
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|
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/* enable interrupt */
|
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rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
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}
|
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rt_susp_list_resume_all_irq(&queue->suspended_pop_list, RT_ERROR,
|
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&(queue->spinlock));
|
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|
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/* resume on push list */
|
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while (!rt_list_isempty(&(queue->suspended_push_list)))
|
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{
|
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/* disable interrupt */
|
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level = rt_spin_lock_irqsave(&(queue->spinlock));
|
||||
rt_susp_list_resume_all_irq(&queue->suspended_push_list, RT_ERROR,
|
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&(queue->spinlock));
|
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|
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/* get next suspend thread */
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thread = rt_list_entry(queue->suspended_push_list.next,
|
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struct rt_thread,
|
||||
tlist);
|
||||
/* set error code to -RT_ERROR */
|
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thread->error = -RT_ERROR;
|
||||
|
||||
/*
|
||||
* resume thread
|
||||
* In rt_thread_resume function, it will remove current thread from
|
||||
* suspend list
|
||||
*/
|
||||
rt_thread_resume(thread);
|
||||
|
||||
/* enable interrupt */
|
||||
rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
||||
}
|
||||
rt_exit_critical();
|
||||
|
||||
rt_schedule();
|
||||
|
||||
@@ -64,7 +64,10 @@ static void _workqueue_thread_entry(void *parameter)
|
||||
{
|
||||
/* no software timer exist, suspend self. */
|
||||
rt_thread_suspend_with_flag(rt_thread_self(), RT_UNINTERRUPTIBLE);
|
||||
|
||||
/* release lock after suspend so we will not lost any wakeups */
|
||||
rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
||||
|
||||
rt_schedule();
|
||||
continue;
|
||||
}
|
||||
@@ -105,13 +108,11 @@ static rt_err_t _workqueue_submit_work(struct rt_workqueue *queue,
|
||||
work->workqueue = queue;
|
||||
|
||||
/* whether the workqueue is doing work */
|
||||
if (queue->work_current == RT_NULL &&
|
||||
((queue->work_thread->stat & RT_THREAD_SUSPEND_MASK) == RT_THREAD_SUSPEND_MASK))
|
||||
if (queue->work_current == RT_NULL)
|
||||
{
|
||||
/* resume work thread */
|
||||
/* resume work thread, and do a re-schedule if succeed */
|
||||
rt_thread_resume(queue->work_thread);
|
||||
rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
||||
rt_schedule();
|
||||
}
|
||||
else
|
||||
{
|
||||
@@ -187,13 +188,11 @@ static void _delayed_work_timeout_handler(void *parameter)
|
||||
work->flags |= RT_WORK_STATE_PENDING;
|
||||
}
|
||||
/* whether the workqueue is doing work */
|
||||
if (queue->work_current == RT_NULL &&
|
||||
((queue->work_thread->stat & RT_THREAD_SUSPEND_MASK) == RT_THREAD_SUSPEND_MASK))
|
||||
if (queue->work_current == RT_NULL)
|
||||
{
|
||||
/* resume work thread */
|
||||
/* resume work thread, and do a re-schedule if succeed */
|
||||
rt_thread_resume(queue->work_thread);
|
||||
rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
||||
rt_schedule();
|
||||
}
|
||||
else
|
||||
{
|
||||
@@ -346,13 +345,11 @@ rt_err_t rt_workqueue_urgent_work(struct rt_workqueue *queue, struct rt_work *wo
|
||||
rt_list_remove(&(work->list));
|
||||
rt_list_insert_after(&queue->work_list, &(work->list));
|
||||
/* whether the workqueue is doing work */
|
||||
if (queue->work_current == RT_NULL &&
|
||||
((queue->work_thread->stat & RT_THREAD_SUSPEND_MASK) == RT_THREAD_SUSPEND_MASK))
|
||||
if (queue->work_current == RT_NULL)
|
||||
{
|
||||
/* resume work thread */
|
||||
/* resume work thread, and do a re-schedule if succeed */
|
||||
rt_thread_resume(queue->work_thread);
|
||||
rt_spin_unlock_irqrestore(&(queue->spinlock), level);
|
||||
rt_schedule();
|
||||
}
|
||||
else
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user