GoLang EventBufferEvent::setWatermark

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PHP EventBufferEvent::setWatermark

PHP original manual for EventBufferEvent::setWatermark [ show | php.net ]


(PECL event >= 1.2.6-beta)

EventBufferEvent::setWatermarkAdjusts read and/or write watermarks


public void EventBufferEvent::setWatermark ( int $events , int $lowmark , int $highmark )

Adjusts the read watermarks, the write watermarks , or both, of a single buffer event.

A buffer event watermark is an edge, a value specifying number of bytes to be read or written before callback is invoked. By default every read/write event triggers a callback invokation. See » Fast portable non-blocking network programming with Libevent: Callbacks and watermarks



Bitmask of Event::READ , Event::WRITE , or both.


Minimum watermark value.


Maximum watermark value. 0 means "unlimited".

Return Values

No value is returned.