Added time management

include/timemanagement.h

@@ -0,0 +1,16 @@
+
+#ifndef TIME_MANAGEMENT_H
+#define TIME_MANAGEMENT_H 
+#endif
+
+/*Copies time struct ts into td*/
+void time_copy(struct timespec *td, struct timespec ts);
+
+/*Adds ms milliseconds to the time variable pointed by t*/
+void time_add_ms(struct timespec *t, int ms);
+
+/*	Returns 0 if t1 == t2
+*	Returns 1 if t1 > t2
+*	Returns -1 if t1 < 2
+*/
+int time_cmp(struct timespec t1,struct timespec t2);

src/timemanagement.c

@@ -0,0 +1,31 @@
+#include <time.h>
+#include <timemanagement.h>
+
+/*Copies time struct ts into td*/
+void time_copy(struct timespec *td, struct timespec ts){
+	td->tv_sec = ts.tv_sec;
+	td->tv_nsec = ts.tv_nsec;
+}
+
+/*Adds ms milliseconds to the time variable pointed by t*/
+void time_add_ms(struct timespec *t, int ms){
+	t->tv_sec += ms/1000;
+	t->tv_nsec += (ms%1000)*1000000;
+	if (t->tv_nsec > 1000000000) {
+		t->tv_nsec -= 1000000000;
+		t->tv_sec += 1;
+	}
+}
+
+/*	Returns 0 if t1 == t2
+*	Returns 1 if t1 > t2
+*	Returns -1 if t1 < 2
+*/
+int time_cmp(struct timespec t1,struct timespec t2){
+	if (t1.tv_sec > t2.tv_sec) return 1;
+	if (t1.tv_sec < t2.tv_sec) return -1;
+	if (t1.tv_nsec > t2.tv_nsec) return 1;
+	if (t1.tv_nsec < t2.tv_nsec) return -1;
+	return 0;
+}
+