gupnp_context_timeout_add
(PECL gupnp >= 0.1.0)
gupnp_context_timeout_add — Sets a function to be called at regular intervals
说明
gupnp_context_timeout_add
( resource
$context
, int $timeout
, mixed $callback
[, mixed $arg
] ) : boolSets a function to be called at regular intervals.
参数
-
context -
A context identifier, returned by gupnp_context_new().
-
timeout -
A timeout in miliseconds.
-
callback -
The callback function calling every
timeoutperiod of time. Typically, callback function takes onargparameter. -
arg -
User data for
callback.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
Example #1 Create new UPnP context and set callback
<?php
$user_data = "user data";
function timeout_cb($arg)
{
printf("Call timeout_cb, user data: '%s'", $arg);
return true;
}
/* Create the UPnP context */
$context = gupnp_context_new();
if (!$context) {
die("Error creating the GUPnP context\n");
}
/* Create root device */
$dev = gupnp_root_device_new($context, "/devicedesc.xml");
/* Set callback for timeout */
gupnp_context_timeout_add($context, 5000, "timeout_cb", $user_data);
/* Run the main loop */
gupnp_root_device_start($dev);
?>
错误／异常
Issues E_WARNING with not valid callback function.