How many times fork() function is executed

Main()
{
if(fork()||fork())
return fork();
else return 0;
}

how many times fork() function is executed?

poojashetty
Profile Answers by poojashetty Questions by poojashetty
Sep 8th, 2007
3
4031

Showing Answers 1 - 3 of 3 Answers

shivakumara.madegowda
Profile Answers by shivakumara.madegowda

Sep 11th, 2007

There are so many answer to ur question. The number of execution depends on is the fork function is returning 0 or not. actually scheduler will decide what to return.
If the first fork in if condition returns non zero value, then executes 2 times.
If the first fork in if condition returns zero then It will execute next fork in the if condition only. If that also returns zero, then 2 times only.
if the second fork returns one then if statement will execute. so it is 3 times.

Finally I could conclude, we can't tell how many times it executes fork call.

suhaas.kaul
Profile Answers by suhaas.kaul

Feb 4th, 2009

fork f1 = 1 will return f3;
fork f1 = 0, f2 = 1 return f3;
f1 = 0, f2 = 0 return 0;
in all 7 times;

geekeeg
Profile Answers by geekeeg

Jun 30th, 2010

4 times.

Main thread
fork()
         fork()     /* In Child process second fork call */
                       end /* Child of child, returns */
         fork()   /* Child process, return fork() */
                       end /* Child of child, returns */
fork() /* Main thread, return fork() . . .further no susequent calls */
fork()