How to run a function in background using c

[johnb4u]

Hi All,

I want to run a function in background and continue with executing next statements,

eg:

main()
{

..
....
func(); // want to run in back ground and it is a while(1). executing
// in infinite loop
funct2(); // this should execute normally
..
...

}
kindly suggest me

Thanks in advance
john

[hugortega]

The fork() System Call

[djap]

Or use pthread.

Depends a litle what you want to do with this function that is running background.

[Rubberman]

You need to fork() the process in order to run the processes in parallel. As noted, threads can be used for this purpose as well, though with more complexity.

[Lakshmipathi]

I would also suggest fork().
check

man 2 fork

[Cabhan]

So, as said, there are two options for doing this: forking and threading. Forking creates a new _process_, threading creates a new thread within the same process.

Which of these is better for you depends on what you want to do. If your func() and funct2() interact in any way, then threading is better, because threads in the same process can share variables and other process state. Separate processes, on the other hand, can communicate, but they have their own separate copies of all variables.

If you give us some more details, we may be able to help you further.