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Implementing the BinaryLight device:
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gupnp functions , include functions , variable functions , post functions




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Beispiele
PHP Manual

Implementing the BinaryLight device

This is an example of UPnP device/service, implementing the BinaryLight device and SwitchPower services to emulate a light switch.

The user interface was purposely simplified in order to show basic concepts and methods.

Beispiel #1 Implementing light server

<?php

/* SetTarget */
function set_target_cb($service$action$arg)
{
    
/* Get the new target value */
    
$target gupnp_service_action_get($action'NewTargetValue'GUPNP_TYPE_BOOLEAN);

    
/* If the new target doesn't match the current status, change the status and
       emit a notification that the status has changed. */
    
if ($target != $GLOBALS['status']) {
        
$GLOBALS['status'] = $target;
        
gupnp_service_notify($service'Status'GUPNP_TYPE_BOOLEAN$GLOBALS['status']);
        
printf("The light is now %s.\n"$GLOBALS['status'] ? "on" "off");
    }

    
/* Return success to the client */
    
gupnp_service_action_return($action);
}

/* GetTarget */
function get_target_cb($service$action$arg)
{
    
gupnp_service_action_set($action'RetTargetValue'GUPNP_TYPE_BOOLEAN$GLOBALS['status']);
    
gupnp_service_action_return($action);
}

/* GetStatus */
function get_status_cb($service$action$arg)
{
    
gupnp_service_action_set($action'ResultStatus'GUPNP_TYPE_BOOLEAN$GLOBALS['status']);
    
gupnp_service_action_return($action);
}

/* By default the light is off */
$GLOBALS['status'] = false;
printf("The light is now %s.\n"$GLOBALS['status'] ? "on" "off");

/* Create the UPnP context */
$context gupnp_context_new();
if (!
$context) {
    
printf("Error creating the GUPnP context\n");
    exit(-
1);
}

/* Host the directory that contains device and service description files */
gupnp_context_host_path($context"./web""");

/* Create root device */
$location "/BinaryLight.xml";
$dev gupnp_root_device_new($context$location);
gupnp_root_device_set_available($devtrue);

/* Get the switch service from the root device */
$service_type "urn:schemas-upnp-org:service:SwitchPower:1";
$service gupnp_device_info_get_service($dev$service_type);
if (!
$service) {
    die(
"Cannot get SwitchPower1 service\n");
}

/* Set callback for action GetStatus */
gupnp_device_action_callback_set($serviceGUPNP_SIGNAL_ACTION_INVOKED"GetStatus"
    
"get_status_cb""action data, GetStatus");

/* Set callback for action GetTarget */
gupnp_device_action_callback_set($serviceGUPNP_SIGNAL_ACTION_INVOKED"GetTarget"
    
"get_target_cb""action data, GetTarget");

/* Set callback for action SetTarget */
gupnp_device_action_callback_set($serviceGUPNP_SIGNAL_ACTION_INVOKED"SetTarget"
    
"set_target_cb""action data, SetTarget");

/* Run the main loop */
gupnp_root_device_start($dev);

?>

Beispiel #2 Implementing light client

<?php

function service_proxy_available_cb($proxy$arg)
{
    
$mode $arg['mode'];

    
printf("Set subscribed\n");
    
gupnp_service_proxy_set_subscribed($proxytrue);

    
/* Add notify if status will be changed */
    
if (!gupnp_service_proxy_add_notify($proxy"Status"
            
GUPNP_TYPE_BOOLEAN"status_changed_cb"NULL)) {
        
printf("Failed to add notify\n");
    }
    
    if (
$mode == 'TOGGLE') {
        
/* We're toggling, so first fetch the current status */
        
$target gupnp_service_proxy_action_get($proxy'GetStatus''ResultStatus'GUPNP_TYPE_BOOLEAN);

        
/* And then toggle it */
        
$target = ! $target;
    } else {
        
/* Mode is a boolean, so the target is the mode thanks to our well chosen
           enumeration values. */
        
$target = ($mode == 'ON') ? true false;
    }

    
/* Set the target */
    
if (!gupnp_service_proxy_action_set($proxy'SetTarget''NewTargetValue'$targetGUPNP_TYPE_BOOLEAN)) {
        
printf("Cannot set switch\n");
    } else {
        
printf("Set switch to %s.\n"$target "on" "off");
    }
    
    
/* Stop browsing */
    
gupnp_control_point_browse_stop($arg['cp']);
}

function 
status_changed_cb($variable$value$arg)
{
    
printf("Status has been changed\n");
    
printf("\tvariable name: %s\n"$variable);
    
printf("\tvalue: %s\n", (int)$value);
    
printf("\n");
}

/* Check and parse command line arguments */
if (count($argv) != 2) {
    
printf("Usage: light-client.php [on|off|toggle]\n");
    exit(-
1);
}

if (
$argv[1] == "on") {
    
$mode 'ON';
} elseif (
$argv[1] == "off") {
    
$mode 'OFF';
} elseif (
$argv[1] == "toggle") {
    
$mode 'TOGGLE';
} else {
    
usage ();
    exit(-
1);
}

/* Create the UPnP context */
$context gupnp_context_new();
if (!
$context) {
    
printf("Error creating the GUPnP context\n");
    exit(-
1);
}

/* Create the control point, searching for SwitchPower services */
$cp gupnp_control_point_new ($context,
        
"urn:schemas-upnp-org:service:SwitchPower:1");

/* Connect to the service-found callback */
$cb "service_proxy_available_cb";
$arg = array('mode' => $mode'cp' => $cp);
gupnp_control_point_callback_set($cpGUPNP_SIGNAL_SERVICE_PROXY_AVAILABLE$cb$arg);

/* Start for browsing */
gupnp_control_point_browse_start($cp);

?>


Beispiele
PHP Manual

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