osal_event.h

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/*
 * Copyright (c) HiSilicon (Shanghai) Technologies Co., Ltd. 2021-2022. All rights reserved.
 * Description: OS Abstract Layer.
 */
 
#ifndef __OSAL_EVENT_H__
#define __OSAL_EVENT_H__
 
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif
#endif
 
/* timeout forever macro */
#define OSAL_EVENT_FOREVER 0xFFFFFFFF
 
// Event reading mode: The task waits for all its expected events to occur.
#define OSAL_WAITMODE_AND 4U
// Event reading mode: The task waits for any of its expected events to occur.
#define OSAL_WAITMODE_OR 2U
// Event reading mode: The event flag is immediately cleared after the event is read.
#define OSAL_WAITMODE_CLR 1U
 
typedef struct {
    void *event;
} osal_event;
 
int osal_event_init(osal_event *event_obj);
 
int osal_event_write(osal_event *event_obj, unsigned int mask);
 
int osal_event_read(osal_event *event_obj, unsigned int mask, unsigned int timeout_ms, unsigned int mode);
 
int osal_event_clear(osal_event *event_obj, unsigned int mask);
 
int osal_event_destroy(osal_event *event_obj);
 
#ifdef __cplusplus
#if __cplusplus
}
#endif
#endif
#endif /* __OSAL_EVENT_H__ */