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

### Description

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.

### Parameters

`size`

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

### Return Values

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

### See Also

- 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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