Netbeans debugger (used for Linux-C development) terminates(does not hit break points) during/after waitpid

We are working on client/server application. I'm working on logging of different sorts. We recently moved to netbeans IDE because of some administrative decision.

I was developer of Asp.net and recently moved to low-level programming. As I know only basics of C (course-level programmig), I spent 2 days in understanding forking concepts of C.

Now I'm debugging a piece of following code which is written by a very senior developer (ofcourse she is out of town):

int UpdateLogsDuringExecution(char *Input)
{
pid_t pid;
int status;
pid = fork();
if (pid == 0)
{
//write data to file
return 1; //on successful execution & 0 otherwise.
}
else
{
do
{
waitpid(pid, &status, WUNTRACED); //after this statement debugger does not hit any break points
} while (!WIFEXITED(status) && !WIFSIGNALED(status));
}

kill(0, SIGTERM); //if I change WUNTRACED to any other flag (for testing/understanding), debugger gives error something like Forward and Continue, Pause and Continue etc.
return 1;
}

int main()

{
setuid(0);
int stat = 1;
while (stat)
{
char *userInput = TakeUserInput();
stat = UpdateLogsDuringExecution(userInput);
if(!stat)
break;
stat= checkAndExecFlag();
.
.
.
.
//do more work

}
return 1;
}


P.S this code works fine but I want to debug the code for understanding of business logic

Please help me to understand this behavior. I think probably waitpid cause this behavior, if WUNTRACED was changed into any other flag, then kill cause the debugger to not hit any break points further.

All suggestions are welcome.

Thanks in advance.

Edit

All function in my program have exactly same structure only

if(pid==0) //differs


kill()

fork()

CreateProcess()

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