PHP Manual
EventBuffer
Linearizes data within buffer and returns it's contents as a string

EventBuffer::pullup

(PECL event >= 1.2.6-beta)

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

说明

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.

Warning

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

参数

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.

参见

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

php eventbuffer append data to the end of an event buffer php eventbuffer move all data from a buffer provided to the current instance of eventbuffer php eventbuffer removes specified number of bytes from the front of the buffer without copying it anywhere php eventbuffer prepend data to the front of the buffer php eventbuffer moves all data from source buffer to the front of current buffer php eventbuffer linearizes data within buffer and returns it s contents as a string php eventbuffer read data from a file onto the end of the buffer php eventbuffer scans the buffer for an occurrence of a string php eventbuffer substracts a portion of the buffer data php eventbuffer re enable calls that modify an event buffer php eventbuffer write contents of the buffer to a file or socket php eventbufferevent read buffer s data php eventhttprequest returns the output buffer of the request php 多字节字符串函数 returns position and length of a matched part of the multibyte regular expression for a predefined multibyte string php openal 函数 load a buffer with data php gearmanclient returns an error string for the last error encountered php mongogridfsfile returns this file s contents as a string of bytes php normalizer normalizes the input provided and returns the normalized string php phardata set the contents of a file within the tar/zip to those of an external file or string php swoole buffer append the string or binary data at the end of the memory buffer and return the new size of memory allocated.