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Program to create processes using fork() and check zombie state

Posted By: Tia Hughes     Category: C Programming     Views: 4779

Program to create processes using fork() and check zombie state.

Code for Program to create processes using fork() and check zombie state in C Programming

# include <stdio.h>
int main()
{    
    int pid;
    pid=getpid();
    
    printf("Current Process ID is : %d\n",pid);

    printf("[ Forking Child Process ... ] \n");    
    pid=fork(); /* This will Create Child Process and
Returns Child's PID */
if(pid < 0) { /* Process Creation Failed ... */
exit(-1); } elseif(pid==0) { /* Child Process */
printf("Child Process Started ...\n"); printf("Child Process Completed ...\n"); } else { /* Parent Process */
sleep(10); printf("Parent Process Running ... \n"); printf("I am In Zombie State ...\n"); while(1) { /*
Infinite Loop that Keeps the
Process Running
*/
} } return 0; } /* Output

[divyen@localhost PP-TW1]$ ./Prog01-Z &
[1] 2320
Current Process ID is : 2320
[ Forking Child Process ... ]
Child Process Started ...
Child Process Completed ...
[divyen@localhost PP-TW1]$ ps -l
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
0 S 500 2193 2192 0 75 0 - 1078 wait4 pts/2 00:00:00 bash
0 S 500 2320 2193 0 75 0 - 336 schedu pts/2 00:00:00 Prog01-Z
1 Z 500 2321 2320 0 75 0 - 0 t> pts/2 00:00:00 Prog01-Z <defunct>
0 R 500 2322 2193 0 81 0 - 788 - pts/2 00:00:00 ps
[divyen@localhost PP-TW1]$ Parent Process Running ...
I am In Zombie State ...

[divyen@localhost PP-TW1]$ ps -l
F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
0 S 500 2193 2192 0 76 0 - 1078 wait4 pts/2 00:00:00 bash
0 R 500 2320 2193 26 80 0 - 336 - pts/2 00:00:04 Prog01-Z
1 Z 500 2321 2320 0 75 0 - 0 t> pts/2 00:00:00 Prog01-Z <defunct>
0 R 500 2323 2193 5 81 0 - 787 - pts/2 00:00:00 ps


*/
  
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Tia Hughes
Tia Hughes author of Program to create processes using fork() and check zombie state is from London, United Kingdom.
 
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