Android Training Course (34)

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In the init. rc file, you can see the following services loaded:

Service nexus/system/bin/nexus

Socket nexus stream 0660 root system

Disabled

 

The nexus service code is in the directory:

Android-2.0/system/core/nexus

 

The nexus Service monitors network commands and provides network management functions.

The main function code is analyzed as follows:

Int main (){

LOGI ("Nexus version 0.1 firing up ");

 

CommandListener * cl = new CommandListener ();

This Code creates a command listener.

 

NetworkManager * nm;

If (! (Nm = NetworkManager: Instance ())){

LOGE ("Unable to create NetworkManager ");

Exit (-1 );

};

This Code creates a network manager.

 

 

Nm-> setBroadcaster (SocketListener *) cl );

 

Nm-> attachController (new LoopController (nm-> getPropMngr (), nm ));

Nm-> attachController (new TiwlanWifiController (nm-> getPropMngr (), nm, "/system/lib/modules/wlan. ko", "wlan ",""));

// Nm-> attachController (new AndroidL2TPVpnController (nm-> getPropMngr (), nm ));

Nm-> attachController (new OpenVpnController (nm-> getPropMngr (), nm ));

This Code sets the network listener.

 

 

 

If (NetworkManager: Instance ()-> run ()){

LOGE ("Unable to Run NetworkManager (% s)", strerror (errno ));

Exit (1 );

}

 

If (cl-> startListener ()){

LOGE ("Unable to start CommandListener (% s)", strerror (errno ));

Exit (1 );

}

 

// XXX: well use the main thread for the NetworkManager eventually

 

While (1 ){

Sleep (1000 );

}

This code starts the network listener and keeps the network listener processing commands.

 

 

LOGI ("Nexus exiting ");

Exit (0 );

}