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[ipc] support of lockless rt_completion (#8887)

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* [ipc] lockless rt_completion implementation

The new rt_completion implemented by lockless algorithm can improve timer resolution for up to ~12%, compare to sem IPC.

Signed-off-by: Shell <smokewood@qq.com>

* fixup: error

* remove useless changes

---------

Signed-off-by: Shell <smokewood@qq.com>
This commit is contained in:
Shell
2024-05-08 09:25:57 +08:00
committed by GitHub
parent 9ba6cec663
commit 48bd0e49f2
17 changed files with 968 additions and 91 deletions
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components/drivers/include/ipc/completion.h
+6 -3
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@@ -5,6 +5,7 @@
*
* Change Logs:
* Date Author Notes
* 2024-04-28 Shell Add new wait_flags() & wakeup_by_errno() API
*/
#ifndef COMPLETION_H_
#define COMPLETION_H_
@@ -13,7 +14,7 @@
#include <rtconfig.h>
/**
* Completion - A tiny IPC implementation for resource-constrained scenarios
* Completion - A tiny & rapid IPC primitive for resource-constrained scenarios
*
* It's an IPC using one CPU word with the encoding:
*
@@ -24,7 +25,7 @@
struct rt_completion
{
/* suspended thread, and completed flag */
rt_base_t susp_thread_n_flag;
rt_atomic_t susp_thread_n_flag;
};
#define RT_COMPLETION_INIT(comp) {0}
@@ -32,7 +33,9 @@ struct rt_completion
void rt_completion_init(struct rt_completion *completion);
rt_err_t rt_completion_wait(struct rt_completion *completion,
rt_int32_t timeout);
rt_err_t rt_completion_wait_flags(struct rt_completion *completion,
rt_int32_t timeout, int suspend_flag);
void rt_completion_done(struct rt_completion *completion);
rt_err_t rt_completion_wakeup(struct rt_completion *completion);
rt_err_t rt_completion_wakeup_by_errno(struct rt_completion *completion, rt_err_t error);
#endif