EventBuffer::pullup

(PECL event >= 1.2.6-beta)

EventBuffer::pullup — Linearizes data within buffer and returns it's contents as a string

說(shuō)明

public EventBuffer::pullup( int $size ): string

"Linearizes" the first size bytes of the buffer, copying or moving them as needed to ensure that they are all contiguous and occupying the same chunk of memory. If size is negative, the function linearizes the entire buffer.

警告

Calling EventBuffer::pullup() with a large size can be quite slow, since it potentially needs to copy the entire buffer's contents.

參數

size: The number of bytes required to be contiguous within the buffer.

返回值

If size is greater than the number of bytes in the buffer, the function returns null. Otherwise, EventBuffer::pullup() returns string.

參見(jiàn)

EventBuffer::copyout() - Copies out specified number of bytes from the front of the buffer
EventBuffer::drain() - Removes specified number of bytes from the front of the buffer without copying it anywhere
EventBuffer::read() - Read data from an evbuffer and drain the bytes read
EventBuffer::readLine() - Extracts a line from the front of the buffer
EventBuffer::appendFrom() - Moves the specified number of bytes from a source buffer to the end of the current buffer

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EventBuffer::pullup

說(shuō)明

參數

返回值

參見(jiàn)