SIGNAL

System2/sendToFile/main.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+
+void handler(int signum)
+{
+    FILE *fp;
+    fp = fopen("test.txt", "w");
+    fprintf(fp, "coucou, je suis bien en vie!\n");
+    fclose(fp);
+}
+
+int main()
+{
+    signal(SIGUSR1, handler);
+    for (size_t i = 0; i < 30; i++)
+    {
+
+        printf("i = %d, In main\n", i);
+        sleep(1);
+    }
+    return 0;
+}