How to reset Host Only Adapter Networking for Oracle VirtualBox VM Manager

Question

I'm developing in C and I need ask an info about callback use.

Suppose I defined 3 callback with 3 different type in input for callback, example:

typedef void (*CB_1) (const struct paramType_1 *p);
typedef void (*CB_2) (const struct paramType_2 *p);
typedef void (*CB_3) (const struct paramType_3 *p);

Ok I have 3 array of callback, each for type of callback:

static CB_1         CB1List[10] ;
static CB_2         CB2List[10] ;
static CB_3         CB3List[10] ;

So I have defined 3 list of callback to call (in maybe different situation) and each list is of specific type of callback (CB_1 ,CB_2 or CB_3) that have a specific callback param (paramType_1,paramType_2 or paramType_3).

Suppose now that I need to perform an operation that is IDENTICAL for each callback ... I must copy paste 3 time the function due different specific param... suppose for example that i need to add a callback to array I need this;:

   static void CBAdd_1(CB_1 _cb) {   
      CB1List[i] = _cb
    }
   static void CBAdd_2(CB_2 _cb) {   
      CB2List[i] = _cb
    }
    static void CBAdd_3(CB_3 _cb) {  
      CB3List[i] = _cb
    }

what is a correct way to use a generic funcion "void CBAdd" for not replicate three time the function for the three callback? maybe using (void*) parameters or other?

thanks

Solution

Blindly using vboxnet0 as your interface name will not work for everyone, or even most people.

1. Use ifconfig to get a list of your network adapters.

2. On my machine it was the ethernet I wanted to restart, but yours may be wlan. The ethernet interface on my machine was enp0s3.

3. Use the ifconfig commands @encgoo mentioned. sudo ifconfig enp0s3 down && sudo ifconfig enp0s3 up. Replace enp0s3 with your own interface name of course.

Comments

[cleblanc]

I would probably use void * parameters I think.

[holyhope]

Goodmorning! Thanks for your answer! Now I test it!