eio_poll(3) [php man page]

EIO_POLL(3)								 1							       EIO_POLL(3)

eio_poll - Can be to be called whenever there are pending requests that need finishing.

SYNOPSIS

       int eio_poll (void  )

DESCRIPTION

       eio_poll(3) can be used to implement special event loop. For this eio_nreqs(3) could be used to test if there are unprocessed requests.

       Note

	      Applicable only when implementing userspace event loop.

PARAMETERS

       This function has no parameters.

RETURN VALUES

	If any request invocation returns a non-zero value, returns that value. Otherwise, it returns 0.

EXAMPLES

       Example #1

	      eio_poll(3) example

	      <?php
	      function res_cb($data, $result) {
		  var_dump($data);
		  var_dump($result);
	      }

	      eio_nop(EIO_PRI_DEFAULT, "res_cb", "1");
	      eio_nop(EIO_PRI_DEFAULT, "res_cb", "2");
	      eio_nop(EIO_PRI_DEFAULT, "res_cb", "3");

	      while (eio_nreqs()) {
		  // Some specific IPC or so
		  eio_poll();
	      }
	      ?>

	      The above example will output something similar to:

	      string(1) "1"
	      int(0)
	      string(1) "3"
	      int(0)
	      string(1) "2"
	      int(0)

SEE ALSO eio_nreqs.
PHP Documentation Group 													       EIO_POLL(3)

EIO_LSTAT(3)								 1							      EIO_LSTAT(3)

eio_lstat - Get file status

SYNOPSIS

       resource eio_lstat (string  $path, int  $pri, callable  $callback, [mixed  $data = NULL])

DESCRIPTION

       eio_lstat(3) returns file status information in $result argument of $callback

PARAMETERS

	      o $path
		- The file path

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

EXAMPLES

       Example #1

	      eio_lstat(3) example

	      <?php
	      $tmp_filename = dirname(__FILE__). "/eio-file.tmp";
	      touch($tmp_filename);

	      function my_res_cb($data, $result) {
		  var_dump($data);
		  var_dump($result);
	      }

	      function my_open_cb($data, $result) {
		  eio_close($result);
		  eio_event_loop();

		  @unlink($data);
	      }

	      eio_lstat($tmp_filename, EIO_PRI_DEFAULT, "my_res_cb", "eio_lstat");
	      eio_open($tmp_filename, EIO_O_RDONLY, NULL,
	       EIO_PRI_DEFAULT, "my_open_cb", $tmp_filename);
	      eio_event_loop();
	      ?>

	      The above example will output something similar to:

	      string(9) "eio_lstat"
	      array(12) {
	       ["st_dev"]=>
		int(2050)
		["st_ino"]=>
		int(2099197)
		["st_mode"]=>
		int(33188)
		["st_nlink"]=>
		int(1)
		["st_uid"]=>
		int(1000)
		["st_gid"]=>
		int(100)
		["st_rdev"]=>
		int(0)
		["st_blksize"]=>
		int(4096)
		["st_blocks"]=>
		int(0)
		["st_atime"]=>
		int(1318235777)
		["st_mtime"]=>
		int(1318235777)
		["st_ctime"]=>
		int(1318235777)
	      }

SEE ALSO eio_stat, eio_fstat.
PHP Documentation Group 													      EIO_LSTAT(3)