event_buffer_watermark_set
(PECL libevent >= 0.0.1)
event_buffer_watermark_set — Set the watermarks for read and write events
Description
   void event_buffer_watermark_set
    ( resource $bevent
   , int $events
   , int $lowmark
   , int $highmark
   )
  Sets the watermarks for read and write events. Libevent does not invoke read callback unless there is at least lowmark bytes in the input buffer; if the read buffer is beyond the highmark, reading is stopped. On output, the write callback is invoked whenever the buffered data falls below the lowmark.
Parameters
- bevent
- 
      Valid buffered event resource. 
- events
- 
      Any combination of EV_READ and EV_WRITE. 
- lowmark
- 
      Low watermark. 
- highmark
- 
      High watermark.