+ tv->tv_usec -= (suseconds_t) PA_USEC_PER_SEC;
+ }
+
+ return tv;
+}
+
+struct timeval* pa_timeval_sub(struct timeval *tv, pa_usec_t v) {
+ unsigned long secs;
+ pa_assert(tv);
+
+ secs = (unsigned long) (v/PA_USEC_PER_SEC);
+ tv->tv_sec -= (time_t) secs;
+ v -= ((pa_usec_t) secs) * PA_USEC_PER_SEC;
+
+ if (tv->tv_usec >= (suseconds_t) v)
+ tv->tv_usec -= (suseconds_t) v;
+ else {
+ tv->tv_sec --;
+ tv->tv_usec += (suseconds_t) (PA_USEC_PER_SEC - v);