fork()ing hell!!

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# 15  
Old 02-15-2002

hey guys,
i used aniruddha's code in sun and it doesn't work. can somebody give a more rfined and a compiled error free code that works.
# 16  
Old 02-15-2002
Hmm... no. The first time I tried it, I didn't enter anything - I figured maybe that was the problem. But it does the same thing when I type "ls", "/bin/ls", "ls -l", etc...

I scrapped the BSD box to try out Solaris x86, so I'll try it once I get g++ installed...
# 17  
Old 02-25-2002
Here is another one, using a guard and separating out the child code.
Somehow, I feel this one can be easier to read in some situations.
Especially with the requirement that all control stay in the parent.

bla, bla, code example, bla, bla, freely distributed, bla.
(C) Jan Atle Ramsli, Bug producer extraordinaire, esq.
#include <unistd.h>
#include <stdio.h>

/* A static variable will only be 0 when the parent is loaded */
pid_t statpid = 0;

printf("\tI am a child\n");
for (;Smilie


main(int ac, char *av[])
int i, num;
pid_t mypid;
pid_t children[100];

num = atoi(av[1]);
if(num < 1 || num > 99)
num = 10;

mypid = getpid();
printf("Hi, I am %d\n", mypid);

* First time : statpid = 0, mypid = 0xef
* Other times: statpid = 0xef, mypid = 0xef+x
* where x != 0
* I think it makes the code clearer if the flag is show here,
* documented here, and acted upon here.
if (statpid != 0)
exit(0); /* You may or may not get here */

* We are adult now, so we can allow ourselves to have
* children.
for (i = 0; i < atoi(av[1]); i++)
if (! statpid)
case 0:
statpid = getpid(); /* Note that we have had a child */
printf("Giving birth to child nr. %d is a wonderful thing\n", i+1);
printf("Uووووووووh, buuu-ووووh!\n");
* WE set it here, too :-]
statpid = getpid();

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