文字
EventBuffer::drain
(PECL event >= 1.2.6-beta)
EventBuffer::drain — Removes specified number of bytes from the front of the buffer without copying it anywhere
说明
public bool EventBuffer::drain
( int
$len
)Behaves as EventBuffer::read() , except that it does not copy the data: it just removes it from the front of the buffer.
参数
-
len -
The number of bytes to remove from the buffer.
返回值
Returns TRUE on success. Otherwise FALSE .
参见
- EventBuffer::read() - Read data from an evbuffer and drain the bytes read
- EventBuffer::appendFrom() - Moves the specified number of bytes from a source buffer to the end of the current buffer