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My fork.
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#define _XOPEN_SOURCE | |
#include<stdio.h> | |
#include<string.h> | |
#include<time.h> | |
#include<unistd.h> | |
// Main. | |
int main(int argc, char **argv) { | |
// Defining variables. | |
time_t now, target; | |
struct tm target_tm; | |
int pid; | |
const char* target_str; | |
// Defining the target date. | |
target_str = "25/10/2014"; | |
// Parsing date. | |
strptime(target_str, "%d/%m/%Y", &target_tm); | |
// Convert struct tm into time_t. | |
target = mktime(&target_tm); | |
// Wait until the good time. | |
do { | |
now = time(NULL); | |
sleep(1); | |
} while (difftime(target, now) > 0); | |
// THE fork. | |
pid = fork(); | |
// Check PID. | |
if (pid == 0) { | |
// Child process. | |
printf("Waaaaaaa!\n"); | |
} else { | |
// Parent process. | |
printf("Happy!\n"); | |
} | |
// All went fine. | |
return 0; | |
} |
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