eio_sendfile
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.
Parameters
- 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.
Return Values
eio_sendfile returns request resource on success, or false on failure.