DeviceApp¶

//
// Models the Device App entity as defined by the ETSI Multi-access Edge Computing (MEC)
// specifications. The Device App can be instantiated on a User Equipment (UE) that wants to
// dynamically instantiate a MEC application within a MEC system. It establishes a TCP connection
// with the User App Lifecycle Management Proxy (UALCMP) entity (see the ~Ualcmp module) and, upon
// receiving a MEC application instantiation request from another UE application, it sends a message
// to the UALCMP including the URI of the MEC application to be instantiated. Once the confirmation
// of successful instantiation is received, the Device App sends an acknowledgment to the UE
// application that requested it. Moreover,
// this module is responsible for requesting the deletion of the MEC application from the MEC system
// upon explicit request from the UE application.
//
simple DeviceApp like IApp
{
    string ualcmpAddress = default(""); // UALCMP address to connect to, may be left empty ("")
    int ualcmpPort = default(-1); // UALCMP port number to connect to
    int ualcmpLocalPort = default(8740); // UALCMP local port number

    string appProvider = default("");
    string appPackageSource = default("");

    string localAddress = default(""); // Local address used for the UE and the UALCMP, may be left empty ("")
    int localPort = default(-1); // UE port number to listen on
    int timeToLive = default(-1); // If not -1, set the TTL (IPv4) or Hop Limit (IPv6) field of sent packets to this value
    int dscp = default(-1); // If not -1, set the DSCP (IPv4/IPv6) field of sent packets to this value
    int tos = default(-1); // If not -1, set the Type of Service (IPv4) / Traffic Class (IPv6) field of sent packets to this value
    @display("i=block/app");

    gates:
        input socketIn @labels(TcpCommand/up);
        output socketOut @labels(TcpCommand/down);
}