#define PA_USEC_PER_SEC ((pa_usec_t) 1000000ULL)
/** The number of nanoseconds in a second */
-#define PA_NSEC_PER_SEC ((pa_usec_t) 1000000000ULL)
+#define PA_NSEC_PER_SEC ((unsigned long long) 1000000000ULL)
/** The number of microseconds in a millisecond */
#define PA_USEC_PER_MSEC ((pa_usec_t) 1000ULL)
/** The number of nanoseconds in a millisecond */
-#define PA_NSEC_PER_MSEC ((pa_usec_t) 1000000ULL)
+#define PA_NSEC_PER_MSEC ((unsigned long long) 1000000ULL)
/** The number of nanoseconds in a microsecond */
-#define PA_NSEC_PER_USEC ((pa_usec_t) 1000ULL)
+#define PA_NSEC_PER_USEC ((unsigned long long) 1000ULL)
+
+/** Invalid time in usec. \since 0.9.15 */
+#define PA_USEC_INVALID ((pa_usec_t) -1)
+
+/** Biggest time in usec. \since 0.9.18 */
+#define PA_USEC_MAX ((pa_usec_t) -2)
struct timeval;
-/** Return the current timestamp, just like UNIX gettimeofday() */
+/** Return the current wallclock timestamp, just like UNIX gettimeofday(). */
struct timeval *pa_gettimeofday(struct timeval *tv);
/** Calculate the difference between the two specified timeval
/** Return the time difference between now and the specified timestamp */
pa_usec_t pa_timeval_age(const struct timeval *tv);
-/** Add the specified time inmicroseconds to the specified timeval structure */
+/** Add the specified time in microseconds to the specified timeval structure */
struct timeval* pa_timeval_add(struct timeval *tv, pa_usec_t v);
-/** Subtract the specified time inmicroseconds to the specified timeval structure. \since 0.9.11 */
+/** Subtract the specified time in microseconds to the specified timeval structure. \since 0.9.11 */
struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v);
-/** Store the specified uec value in the timeval struct. \since 0.9.7 */
+/** Store the specified usec value in the timeval struct. \since 0.9.7 */
struct timeval* pa_timeval_store(struct timeval *tv, pa_usec_t v);
/** Load the specified tv value and return it in usec. \since 0.9.7 */