event_buffer_set_callback

(PECL libevent >= 0.0.4)

event_buffer_set_callback — Set or reset callbacks for a buffered event

说明

event_buffer_set_callback ( resource $event , mixed $readcb , mixed $writecb , mixed $errorcb [, mixed $arg ] ) : bool

Sets or changes existing callbacks for the buffered event.

参数

event

Valid buffered event resource.

readcb

Callback to invoke where there is data to read, or NULL if no callback is desired.

writecb

Callback to invoke where the descriptor is ready for writing, or NULL if no callback is desired.

errorcb

Callback to invoke where there is an error on the descriptor, cannot be NULL.

arg

An argument that will be passed to each of the callbacks (optional).

返回值

成功时返回 TRUE， 或者在失败时返回 FALSE。

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