39 lines
969 B
C
39 lines
969 B
C
/*
|
|
* Copyright (c) 2006-2023, RT-Thread Development Team
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Change Logs:
|
|
* Date Author Notes
|
|
*/
|
|
#ifndef COMPLETION_H_
|
|
#define COMPLETION_H_
|
|
|
|
#include <rtdef.h>
|
|
#include <rtconfig.h>
|
|
|
|
/**
|
|
* Completion - A tiny IPC implementation for resource-constrained scenarios
|
|
*
|
|
* It's an IPC using one CPU word with the encoding:
|
|
*
|
|
* BIT | MAX-1 ----------------- 1 | 0 |
|
|
* CONTENT | suspended_thread & ~1 | completed flag |
|
|
*/
|
|
|
|
struct rt_completion
|
|
{
|
|
/* suspended thread, and completed flag */
|
|
rt_base_t susp_thread_n_flag;
|
|
};
|
|
|
|
#define RT_COMPLETION_INIT(comp) {0}
|
|
|
|
void rt_completion_init(struct rt_completion *completion);
|
|
rt_err_t rt_completion_wait(struct rt_completion *completion,
|
|
rt_int32_t timeout);
|
|
void rt_completion_done(struct rt_completion *completion);
|
|
rt_err_t rt_completion_wakeup(struct rt_completion *completion);
|
|
|
|
#endif
|