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| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <unistd.h> | |
| #include <sys/types.h> | |
| #include <sys/wait.h> | |
| #include <errno.h> | |
| pid_t Fork(void) | |
| { | |
| pid_t pid = fork(); | |
| if (pid < 0) | |
| { | |
| perror("Error, while calling fork\n"); | |
| exit(EXIT_FAILURE); | |
| } | |
| return pid; | |
| } | |
| pid_t Wait(int *status) | |
| { | |
| pid_t ret_pid = wait(status); | |
| if (ret_pid < 0) | |
| { | |
| perror("Error, while calling wait: "); | |
| exit(EXIT_FAILURE); | |
| } | |
| return ret_pid; | |
| } | |
| int main(int argc, char *argv[]) | |
| { | |
| pid_t child_pid, ret_pid; | |
| int status; | |
| if ( (child_pid = Fork()) == 0) | |
| { | |
| printf("Running in child process with PID: %d\n", getpid()); | |
| exit(EXIT_SUCCESS); | |
| } | |
| printf("Waiting for the child to terminate in Parent with PID %d\n", getpid()); | |
| ret_pid = Wait(&status); | |
| printf("Child with PID %d exited\n", ret_pid); | |
| return 0; | |
| } |
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