(PECL eio >= 0.0.1dev)
eio_sendfile — Transfer data between file descriptors
$out_fd
, mixed $in_fd
, int $offset
, int $length
[, int $pri
[, callable $callback
[, string $data
]]] )eio_sendfile() copies data between one file descriptor and another. See SENDFILE(2) man page for details.
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, or NULL.
If NULL passed, pri internally is set to
EIO_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.
eio_sendfile() returns request resource on success or FALSE on error.