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| #include <stdio.h>
| #include <unistd.h>
| #include <string.h>
| #include <errno.h>
|
| int main(int argc, char **argv)
| {
| pid_t pid;
|
| printf("Parent process PID[%d] start running...\n", getpid() );
|
| pid = fork();
| if(pid < 0)
| {
| printf("fork() create child process failure: %s\n", strerror(errno));
| return -1;
| }
| else if( pid == 0 )
| {
| printf("Child process PID[%d] start running, my parent PID is [%d]\n", getpid(), getppid());
| return 0;
| }
| else // if( pid > 0 )
| {
| printf("Parent process PID[%d] continue running, and child process PID is [%d]\n", getpid(), pid);
| return 0;
| }
| }
|
|
