int adns_beforepoll(adns_state ads, struct pollfd *fds, int *nfds_io,
int *timeout_io, const struct timeval *now) {
#ifdef HAVE_POLL
struct timeval tv_nowbuf, tv_tobuf, *tv_to;
int space, found, timeout_ms, r;
struct pollfd fds_tmp[MAX_POLLFDS];
adns__consistency(ads,0,cc_entex);
if (timeout_io) {
adns__must_gettimeofday(ads,&now,&tv_nowbuf);
if (!now) { *nfds_io= 0; r= 0; goto xit; }
timeout_ms= *timeout_io;
if (timeout_ms == -1) {
tv_to= 0;
} else {
tv_tobuf.tv_sec= timeout_ms / 1000;
tv_tobuf.tv_usec= (timeout_ms % 1000)*1000;
tv_to= &tv_tobuf;
}
adns__timeouts(ads, 0, &tv_to,&tv_tobuf, *now);
if (tv_to) {
assert(tv_to == &tv_tobuf);
timeout_ms= (tv_tobuf.tv_usec+999)/1000;
assert(tv_tobuf.tv_sec < (INT_MAX-timeout_ms)/1000);
timeout_ms += tv_tobuf.tv_sec*1000;
} else {
timeout_ms= -1;
}
*timeout_io= timeout_ms;
}
space= *nfds_io;
if (space >= MAX_POLLFDS) {
found= adns__pollfds(ads,fds);
*nfds_io= found;
} else {
found= adns__pollfds(ads,fds_tmp);
*nfds_io= found;
if (space < found) { r= ERANGE; goto xit; }
memcpy(fds,fds_tmp,sizeof(struct pollfd)*found);
}
r= 0;
xit:
adns__consistency(ads,0,cc_entex);
return r;
#else
errno = ENOSYS;
return -1;
#endif
}
void adns_afterpoll(adns_state ads, const struct pollfd *fds, int nfds,
const struct timeval *now) {
struct timeval tv_buf;
adns__consistency(ads,0,cc_entex);
adns__must_gettimeofday(ads,&now,&tv_buf);
if (now) {
adns__timeouts(ads, 1, 0,0, *now);
adns__fdevents(ads, fds,nfds, 0,0,0,0, *now,0);
}
adns__consistency(ads,0,cc_entex);
}
