Thread: Why isn't this printing all 1024 processes?

Code:

#include "mpos-app.h"

volatile int counter;

void run_child(void);

void
start(void)
{
pid_t p;
int status;

counter = 0;

while (counter < 1025) {
int n_started = 0;

// Start as many processes as possible, until it fails to start
// a process or it has started 1025 processes total.
while (counter + n_started < 1025) {
p = sys_fork();
if (p == 0)
run_child();
else if (p > 0)
n_started++;
else
break;
}

if (n_started == 0)
break;

// Retrieve old processes' exit status with sys_wait(),
// to make room for new processes.
for (p = 2; p < NPROCS; p++)
(void) sys_wait(p);
}

sys_exit(0);
}

void
run_child(void)
{
int input_counter = counter;

counter++;

console_printf("Process %d lives, counter %d!\n",
sys_getpid(), input_counter);
sys_exit(input_counter);
}

Why isn't this printing all 1024 processes? - Dev Shed

Copypasta

LOL, Two forums and he gets almost the same responce... I did write why it was doing it but it's so simple I edited in my first post. I'm still not going to say why cause it's so simple being pointed to the while loop should be enough focus on the problem.

But to answer the question of the original poster as to why its not doing what it suppose to. Cause it's not logical right to produce the results you desire.