宏定义
#define	AOS_EVENT_AND 0x02u

#define	AOS_EVENT_AND_CLEAR 0x03u

#define	AOS_EVENT_OR 0x00u

#define	AOS_EVENT_OR_CLEAR 0x01u

类型定义
typedef aos_hdl_t	aos_event_t

函数
aos_status_t	aos_event_create (aos_event_t *event, uint32_t value, uint32_t options)

void	aos_event_free (aos_event_t *event)

aos_status_t	aos_event_get (aos_event_t event, uint32_t value, uint32_t opt, uint32_t actl_value, uint32_t timeout)

aos_status_t	aos_event_set (aos_event_t *event, uint32_t value, uint32_t opt)

aos_status_t	aos_event_new (aos_event_t *event, uint32_t value)

bool	aos_event_is_valid (aos_event_t *event)

aos_status_t	aos_queue_new (aos_queue_t queue, void buf, size_t size, size_t max_msg)

bool	aos_queue_is_valid (aos_queue_t *queue)

void *	aos_queue_buf_ptr (aos_queue_t *queue)

详细描述

提供AliOS Things系统内核事件功能的基础API.

宏定义说明

◆ AOS_EVENT_AND

#define AOS_EVENT_AND 0x02u

期望事件标志位均为1时，即等待所有事件均发生时，任务解除阻塞

在文件 kernel.h 第 53 行定义.

◆ AOS_EVENT_AND_CLEAR

#define AOS_EVENT_AND_CLEAR 0x03u

期望事件标志位均为1时，即等待所有事件均发生时，任务解除阻塞且将事件标志位清零

在文件 kernel.h 第 54 行定义.

◆ AOS_EVENT_OR

#define AOS_EVENT_OR 0x00u

期望任意事件标志位为1时，即等待的任意事件发生，任务解除阻塞

在文件 kernel.h 第 55 行定义.

◆ AOS_EVENT_OR_CLEAR

#define AOS_EVENT_OR_CLEAR 0x01u

期望任意事件标志位为1时，即等待的任意事件发生，任务解除阻塞且将事件标志位清零

在文件 kernel.h 第 56 行定义.

类型定义说明

◆ aos_event_t

typedef aos_hdl_t aos_event_t

AOS信号量对象句柄类型

在文件 kernel.h 第 128 行定义.

函数说明

◆ aos_event_create()

aos_status_t aos_event_create	(	aos_event_t *	event,
		uint32_t	value,
		uint32_t	options
	)

Alloc a event.

参数

[out]	sem	pointer of event object, event object must be alloced, hdl pointer in aos_sem_t will refer a kernel obj internally.
[in]	value	initial event value.
[in]	options	reserved.

返回: 0:success.

◆ aos_event_free()

void aos_event_free ( aos_event_t * event )

Destroy a event.

参数

[in] event pointer of event object, mem refered by hdl pointer in aos_hdl_t will be freed internally.

◆ aos_event_get()

aos_status_t aos_event_get	(	aos_event_t *	event,
		uint32_t	value,
		uint32_t	opt,
		uint32_t *	actl_value,
		uint32_t	timeout
	)

Get a event.

参数

[in]	event	event object.
[in]	value	Expect value.
[in]	opt	Mode of operation, one of AND/AND_CLEAR/OR/OR_CLEAR
	[OUT]	actl_value Actual acquired value
[in]	timeout	waiting until timeout in milliseconds.

返回
0:success.

◆ aos_event_is_valid()

bool aos_event_is_valid ( aos_event_t * event )

This function will check if event is valid. Deprecated, not Recommended.

参数

[in] event pointer to the event.

返回: false: invalid, true: valid.

◆ aos_event_new()

aos_status_t aos_event_new	(	aos_event_t *	event,
		uint32_t	value
	)

Alloc a event. Deprecated, not Recommended.

参数

[out]	event	pointer of event object, event object must be alloced, hdl pointer in aos_hdl_t will refer a kernel obj internally.
[in]	value	initial event value.

返回: 0:success.

◆ aos_event_set()

aos_status_t aos_event_set	(	aos_event_t *	event,
		uint32_t	value,
		uint32_t	opt
	)

Set a event.

参数

[in]	event	event object.
[in]	value	The value to set.
[in]	opt	Mode of operation, one of AND/AND_CLEAR/OR/OR_CLEAR
[in]	timeout	waiting until timeout in milliseconds.

返回: 0:success.

◆ aos_queue_buf_ptr()

void* aos_queue_buf_ptr ( aos_queue_t * queue )

This function will return buf start ptr if queue is inited. Deprecated, not Recommended.

参数

[in] queue pointer to the queue.

返回: NULL: error.

◆ aos_queue_is_valid()

bool aos_queue_is_valid ( aos_queue_t * queue )

This function will check if queue is valid. Deprecated, not Recommended.

参数

[in] queue pointer to the queue.

返回: false: invalid, true: valid.

◆ aos_queue_new()

aos_status_t aos_queue_new	(	aos_queue_t *	queue,
		void *	buf,
		size_t	size,
		size_t	max_msg
	)

This function will create a queue. Deprecated, not Recommended.

参数

[in]	queue	pointer to the queue(the space is provided by user).
[in]	buf	buf of the queue(provided by user).
[in]	size	the bytes of the buf.
[in]	max_msg	the max size of the msg.

返回: 0: success.