'How to make process tree using fork

Assume that the following two variables have been declared and initialized: int pid1 = 1; int pid2 = 0; Draw a process tree for each of the following program segment: 1.

pid1 = fork();
pid2 = fork();
if (pid1 == 0)
fork();

 pid1 = fork();
pid2 = fork();
if (pid1 != 0 || pid2 != 0)
fork();

Would there be any effect of initialization prior calling fork.

linuxgccprocessfork


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