(PECL libevent >= 0.0.1)
event_buffer_watermark_set — Set the watermarks for read and write events
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
Valid buffered event resource.
Any combination of