I want to understand the fork system call Please can you help me?

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Dear sir;

I want to understand the fork system call Please can you help me?

Thanks in advance

Dalia

Posted 6-Jul-12 22:28pm

Member 8697827

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OriginalGriff 7-Jul-12 4:37am

Don't repost a question to change the tags, or to add information - use the "Improve question" link instead.
I have deleted the older spare.

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OriginalGriff · Answer 1 · 2012-07-06T22:40:00

Solution 1

Google is your friend: Be nice and visit him often. He can answer questions a lot more quickly than posting them here...

A very quick search gave over three million results, the top of which was Wikipedia: http://en.wikipedia.org/wiki/Fork_(operating_system)[^] which gives a good general answer to a very general question.

In future, please try to do at least basic research yourself, and not waste your time or ours.

Posted 6-Jul-12 22:40pm

OriginalGriff

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Member 8697827 8-Jul-12 2:30am

I have read on google first but I cannot solve this problem
How may processes will be created when the following program is executed? Assume that all fork system calls are successful. what will be printed?
main()
{
int i=1;
int ret_val=0;
while(i{=5)
{
fork();
if(ret_val==0) /*child code*/
{printf("In child%d.\n",i);
exit(0);
}
else{/*parent code*/
i=i+1;
}}}

OriginalGriff 8-Jul-12 3:10am

Why not correct the compilation errors, and run it, and see?
Then you can ask "Why did I get xxx?"

Member 8697827 8-Jul-12 3:42am

ok could you put the link of the program because I don't have it

OriginalGriff 8-Jul-12 4:02am

You don't have the code you posted an hour ago?
Copy it from your reply above?

Member 8697827 8-Jul-12 9:13am

no the program not the code

OriginalGriff 8-Jul-12 9:47am

Which program? Are you trying to do development without a compiler?

Member 8697827 9-Jul-12 9:26am

yes I am reading in distributed system and I don't understand the fork and I haven't the compiler I try to download but don't find can you help me in understanding the fork

OriginalGriff 9-Jul-12 9:49am

You really aren't going to get far without a compiler of some form - so your first priority should be to get one!
What OS are you using, and what language are you learning?
If it's Windows, then Microsoft do Express versions of each of the Visual Studio languages for free, and it includes the IDE, compiler, libraries, pretty much everything you would need.