/**
* Returns the difference (in u_long 1/100th secs) between the two markers
* (functionally this is what sysUpTime needs)
*/
u_long
uatime_hdiff(const_marker_t first, const_marker_t second)
{
struct timeval diff;
NETSNMP_TIMERSUB((const struct timeval *) second, (const struct timeval *) first, &diff);
return ((u_long) diff.tv_sec) * 100 + diff.tv_usec / 10000;
}
/**
* Compute (*now - *then) in centiseconds.
*/
int
calculate_time_diff(const struct timeval *now, const struct timeval *then)
{
struct timeval diff;
NETSNMP_TIMERSUB(now, then, &diff);
return (int)(diff.tv_sec * 100 + diff.tv_usec / 10000);
}
/** Compute rounded (*now - *then) in seconds. */
u_int
calculate_sectime_diff(const struct timeval *now, const struct timeval *then)
{
struct timeval diff;
NETSNMP_TIMERSUB(now, then, &diff);
return diff.tv_sec + (diff.tv_usec >= 500000L);
}
/**
* Returns the difference (in msec) between the two markers
*/
long
atime_diff(const_marker_t first, const_marker_t second)
{
struct timeval diff;
NETSNMP_TIMERSUB((const struct timeval *) second, (const struct timeval *) first, &diff);
return (long)(diff.tv_sec * 1000 + diff.tv_usec / 1000);
}
/**
* Is the current time past (marked time plus delta) ?
*
* @param[in] pm Pointer to marked time as obtained via
* netsnmp_set_monotonic_marker().
* @param[in] delta_ms Time delta in milliseconds.
*
* @return pm != NULL && now >= (*pm + delta_ms)
*/
int
netsnmp_ready_monotonic(const_marker_t pm, int delta_ms)
{
struct timeval now, diff, delta;
netsnmp_assert(delta_ms >= 0);
if (pm) {
netsnmp_get_monotonic_clock(&now);
NETSNMP_TIMERSUB(&now, (const struct timeval *) pm, &diff);
delta.tv_sec = delta_ms / 1000;
delta.tv_usec = (delta_ms % 1000) * 1000UL;
return timercmp(&diff, &delta, >=) ? TRUE : FALSE;
} else {
return FALSE;
