eio_sendfile
(PECL eio >= 0.0.1dev)
eio_sendfile — Transfer data between file descriptors
Beschreibung
mixed
$out_fd
,mixed
$in_fd
,int
$offset
,int
$length
,int
$pri
= ?,callable
$callback
= ?,string
$data
= ?): resource
eio_sendfile() copies data between one file descriptor
and another. See SENDFILE(2)
man page for details.
Parameter-Liste
-
out_fd
-
Output stream, Socket resource, or file descriptor. Should be opened for writing.
-
in_fd
-
Input stream, Socket resource, or file descriptor. Should be opened for reading.
-
offset
-
Offset within the source file.
-
length
-
Number of bytes to copy.
-
pri
-
The request priority:
EIO_PRI_DEFAULT
,EIO_PRI_MIN
,EIO_PRI_MAX
, ornull
. Ifnull
passed,pri
internally is set toEIO_PRI_DEFAULT
. -
callback
-
callback
function is called when the request is done. It should match the following prototype:void callback(mixed $data, int $result[, resource $req]);
-
data
-
is custom data passed to the request.
-
result
-
request-specific result value; basically, the value returned by corresponding system call.
-
req
-
is optional request resource which can be used with functions like eio_get_last_error()
-
-
data
-
Arbitrary variable passed to
callback
.
Rückgabewerte
eio_sendfile() returns request resource on success,Bei einem Fehler wird false
zurückgegeben..