EventBuffer::pullup

(PECL event >= 1.2.6-beta)

EventBuffer::pullup — Linearizes data within buffer and returns its contents as a string

説明

public function 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.

パラメータ

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

戻り値

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

参考

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

関連キーワード:

buffer EventBuffer bytes size pullup number Linearizes within contents read specified front copying contiguous entire drain prependBuffer event beta first moving them needed ensure they