event_buffer_new(3) [php man page]

EVENT_BUFFER_NEW(3)							 1						       EVENT_BUFFER_NEW(3)

event_buffer_new - Create new buffered event

SYNOPSIS

       resource event_buffer_new (resource  $stream, mixed  $readcb, mixed  $writecb, mixed  $errorcb, [mixed  $arg])

DESCRIPTION

	Libevent provides an abstraction layer on top of the regular event API. Using buffered event you don't need to deal with the I/O manually,
       instead it provides input and output buffers that get filled and drained automatically.

PARAMETERS

	      o $stream
		- Valid PHP stream resource. Must be castable to file descriptor.

	      o $readcb
		- Callback to invoke where there is data to read, or NULL if no callback is desired.

	      o $writecb
		- Callback to invoke where the descriptor is ready for writing, or NULL if no callback is desired.

	      o $errorcb
		- Callback to invoke where there is an error on the descriptor, cannot be NULL.

	      o $arg
		- An argument that will be passed to each of the callbacks (optional).

RETURN VALUES

       event_buffer_new(3) returns new buffered event resource on success or FALSE on error.

PHP Documentation Group 												       EVENT_BUFFER_NEW(3)

EIO_SEEK(3)								 1							       EIO_SEEK(3)

eio_seek - Repositions the offset of the open file associated with the$fdargument to the argument$offsetaccording to the directive$whence

SYNOPSIS

       resource  eio_seek  (mixed   $fd,  int  $offset, int  $whence, [int  $pri = EIO_PRI_DEFAULT], [callable	$callback = NULL], [mixed  $data =
       NULL])

DESCRIPTION

       eio_seek(3) repositions the offset of the open file associated with stream, Socket resource, or file descriptor specified  by  $fd  to  the
       argument $offset according to the directive $whence as follows:

	      o EIO_SEEK_SET - Set position equal to $offset bytes.

	      o EIO_SEEK_CUR - Set position to current location plus $offset.

	      o EIO_SEEK_END - Set position to end-of-file plus $offset.

PARAMETERS

	      o $fd
		- Stream, Socket resource, or numeric file descriptor

	      o $offset
		- Starting point from which data is to be read.

	      o $length
		- Number of bytes to be read.

	      o $pri
		-The  request  priority:  EIO_PRI_DEFAULT,  EIO_PRI_MIN,  EIO_PRI_MAX,	or  NULL.  If  NULL  passed,  $pri  internally	is  set to
		EIO_PRI_DEFAULT.

	      o $callback
		-$callback function is called when the request is done. It should match the following prototype:

	      void callback(mixed $data, int $result[, resource $req]);

		     o $data
		       -is custom data passed to the request.

		     o $result
		       -request-specific result value; basically, the value returned by corresponding system call.

		     o $req
		       -is optional request resource which can be used with functions like eio_get_last_error(3)

	      o $data
		- Arbitrary variable passed to $callback.

RETURN VALUES

       eio_seek(3) returns request resource on success or FALSE on error.

PHP Documentation Group 													       EIO_SEEK(3)