EventBufferEvent::setWatermark
PHP function
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(PECL event >= 1.2.6-beta)
Adjusts read and/or write watermarks
Description
EventBufferEvent::setWatermark(int $events, int $lowmark, int $highmark): void
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 invocation. See Fast portable non-blocking network programming with Libevent: Callbacks and watermarks
Parameters
eventsBitmask of
Event::READ,Event::WRITE, or both.lowmarkMinimum watermark value.
highmarkMaximum watermark value.
0means "unlimited".
Return Values
Void