struct timeval tv;
GETTIMEOFDAY (&tv, NULL);
- ret.value = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+ ret.value =
+ (uint64_t) (((uint64_t) tv.tv_sec * 1000LL) +
+ ((uint64_t) tv.tv_usec / 1000LL));
return ret;
}
return zero;
}
+
+/**
+ * Return absolute time of 0ms.
+ */
+struct GNUNET_TIME_Absolute
+GNUNET_TIME_absolute_get_zero ()
+{
+ static struct GNUNET_TIME_Absolute zero;
+ return zero;
+}
+
/**
* Return relative time of 1ms.
*/
/**
* Return the minimum of two relative time values.
*
+ * @param t1 first timestamp
+ * @param t2 other timestamp
* @return timestamp that is smaller
*/
-struct GNUNET_TIME_Relative GNUNET_TIME_relative_min (struct
- GNUNET_TIME_Relative
- t1,
- struct
- GNUNET_TIME_Relative t2)
+struct GNUNET_TIME_Relative
+GNUNET_TIME_relative_min (struct
+ GNUNET_TIME_Relative
+ t1, struct GNUNET_TIME_Relative t2)
{
return (t1.value < t2.value) ? t1 : t2;
}
+
+/**
+ * Return the maximum of two relative time values.
+ *
+ * @param t1 first timestamp
+ * @param t2 other timestamp
+ * @return timestamp that is larger
+ */
+struct GNUNET_TIME_Relative
+GNUNET_TIME_relative_max (struct
+ GNUNET_TIME_Relative
+ t1, struct GNUNET_TIME_Relative t2)
+{
+ return (t1.value > t2.value) ? t1 : t2;
+}
+
+
+
+/**
+ * Return the minimum of two relative time values.
+ *
+ * @param t1 first timestamp
+ * @param t2 other timestamp
+ * @return timestamp that is smaller
+ */
+struct GNUNET_TIME_Absolute
+GNUNET_TIME_absolute_min (struct
+ GNUNET_TIME_Absolute
+ t1, struct GNUNET_TIME_Absolute t2)
+{
+ return (t1.value < t2.value) ? t1 : t2;
+}
+
+
+/**
+ * Return the maximum of two relative time values.
+ *
+ * @param t1 first timestamp
+ * @param t2 other timestamp
+ * @return timestamp that is smaller
+ */
+struct GNUNET_TIME_Absolute
+GNUNET_TIME_absolute_max (struct
+ GNUNET_TIME_Absolute
+ t1, struct GNUNET_TIME_Absolute t2)
+{
+ return (t1.value > t2.value) ? t1 : t2;
+}
+
+
/**
* Given a timestamp in the future, how much time
* remains until then?
return ret;
}
+
+/**
+ * Subtract a given relative duration from the
+ * given start time.
+ *
+ * @param start some absolute time
+ * @param duration some relative time to subtract
+ * @return ZERO if start <= duration, or FOREVER if start time is FOREVER; start-duration otherwise
+ */
+struct GNUNET_TIME_Absolute
+GNUNET_TIME_absolute_subtract (struct
+ GNUNET_TIME_Absolute
+ start,
+ struct
+ GNUNET_TIME_Relative
+ duration)
+{
+ struct GNUNET_TIME_Absolute ret;
+ if (start.value <= duration.value)
+ return GNUNET_TIME_UNIT_ZERO_ABS;
+ if (start.value == GNUNET_TIME_UNIT_FOREVER_ABS.value)
+ return GNUNET_TIME_UNIT_FOREVER_ABS;
+ ret.value = start.value - duration.value;
+ return ret;
+}
+
+
/**
* Multiply relative time by a given factor.
*
struct GNUNET_TIME_Relative ret;
if (factor == 0)
return GNUNET_TIME_relative_get_zero ();
- ret.value = rel.value * factor;
+ ret.value = rel.value * (unsigned long long) factor;
if (ret.value / factor != rel.value)
{
GNUNET_break (0);
return ret;
}
+
+/**
+ * Divide relative time by a given factor.
+ *
+ * @param rel some duration
+ * @param factor integer to divide by
+ * @return FOREVER if rel=FOREVER or factor==0; otherwise rel/factor
+ */
+struct GNUNET_TIME_Relative
+GNUNET_TIME_relative_divide (struct GNUNET_TIME_Relative rel,
+ unsigned int factor)
+{
+ struct GNUNET_TIME_Relative ret;
+ if ( (factor == 0) ||
+ (rel.value == GNUNET_TIME_UNIT_FOREVER_REL.value) )
+ return GNUNET_TIME_UNIT_FOREVER_REL;
+ ret.value = rel.value / (unsigned long long) factor;
+ return ret;
+}
+
+
+/**
+ * Calculate the estimate time of arrival/completion
+ * for an operation.
+ *
+ * @param start when did the operation start?
+ * @param finished how much has been done?
+ * @param total how much must be done overall (same unit as for "finished")
+ * @return remaining duration for the operation,
+ * assuming it continues at the same speed
+ */
+struct GNUNET_TIME_Relative
+GNUNET_TIME_calculate_eta (struct GNUNET_TIME_Absolute start,
+ uint64_t finished, uint64_t total)
+{
+ struct GNUNET_TIME_Relative dur;
+ double exp;
+ struct GNUNET_TIME_Relative ret;
+
+ GNUNET_break (finished <= total);
+ if (finished >= total)
+ return GNUNET_TIME_UNIT_ZERO;
+ if (finished == 0)
+ return GNUNET_TIME_UNIT_FOREVER_REL;
+ dur = GNUNET_TIME_absolute_get_duration (start);
+ exp = ((double) dur.value) * ((double) total) / ((double) finished);
+ ret.value = ((uint64_t) exp) - dur.value;
+ return ret;
+}
+
+
/**
* Add relative times together.
*
+ * @param a1 first timestamp
+ * @param a2 second timestamp
* @return FOREVER if either argument is FOREVER or on overflow; a1+a2 otherwise
*/
struct GNUNET_TIME_Relative
}
+/**
+ * Subtract relative timestamp from the other.
+ *
+ * @param a1 first timestamp
+ * @param a2 second timestamp
+ * @return ZERO if a2>=a1 (including both FOREVER), FOREVER if a1 is FOREVER, a1-a2 otherwise
+ */
+struct GNUNET_TIME_Relative
+GNUNET_TIME_relative_subtract (struct GNUNET_TIME_Relative a1,
+ struct GNUNET_TIME_Relative a2)
+{
+ struct GNUNET_TIME_Relative ret;
+
+ if (a2.value >= a1.value)
+ return GNUNET_TIME_relative_get_zero ();
+ if (a1.value == (uint64_t) - 1LL)
+ return GNUNET_TIME_relative_get_forever ();
+ ret.value = a1.value - a2.value;
+ return ret;
+}
+
+
/**
* Convert relative time to network byte order.
+ *
+ * @param a time to convert
+ * @return time in network byte order
*/
struct GNUNET_TIME_RelativeNBO
GNUNET_TIME_relative_hton (struct GNUNET_TIME_Relative a)
{
struct GNUNET_TIME_RelativeNBO ret;
- ret.value = GNUNET_htonll (a.value);
+ ret.value__ = GNUNET_htonll (a.value);
return ret;
}
/**
* Convert relative time from network byte order.
+ *
+ * @param a time to convert
+ * @return time in host byte order
*/
struct GNUNET_TIME_Relative
GNUNET_TIME_relative_ntoh (struct GNUNET_TIME_RelativeNBO a)
{
struct GNUNET_TIME_Relative ret;
- ret.value = GNUNET_ntohll (a.value);
+ ret.value = GNUNET_ntohll (a.value__);
return ret;
}
/**
* Convert absolute time to network byte order.
+ *
+ * @param a time to convert
+ * @return time in network byte order
*/
struct GNUNET_TIME_AbsoluteNBO
GNUNET_TIME_absolute_hton (struct GNUNET_TIME_Absolute a)
{
struct GNUNET_TIME_AbsoluteNBO ret;
- ret.value = GNUNET_htonll (a.value);
+ ret.value__ = GNUNET_htonll (a.value);
return ret;
}
/**
* Convert absolute time from network byte order.
+ *
+ * @param a time to convert
+ * @return time in host byte order
*/
struct GNUNET_TIME_Absolute
GNUNET_TIME_absolute_ntoh (struct GNUNET_TIME_AbsoluteNBO a)
{
struct GNUNET_TIME_Absolute ret;
- ret.value = GNUNET_ntohll (a.value);
+ ret.value = GNUNET_ntohll (a.value__);
return ret;
}