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How many times fork() function is executed
main()
{
if(fork()||fork())
return fork();
else return 0;
}

how many times fork() function is executed?



  
Total Answers and Comments: 2 Last Update: February 05, 2009     Asked by: poojashetty 
  
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September 11, 2007 11:21:12   #1  
shivakumara.madegowda Member Since: January 2007   Contribution: 6    
RE: how many times fork() function is executed

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.


 
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February 04, 2009 16:49:16   #2  
suhaas.kaul Member Since: November 2008   Contribution: 1    
RE: How many times fork() function is executed

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