/* Iterate through all the event lists (such as connect_events, read_events,
* timer_events, etc) and take action for those that have completed (due to
* timeout, i/o, etc) */
void iterate_through_event_lists(mspool *nsp, int evcount) {
int n;
struct kqueue_engine_info *kinfo = (struct kqueue_engine_info *)nsp->engine_data;
msiod *nsi;
for (n = 0; n < evcount; n++) {
struct kevent *kev = &kinfo->events[n];
nsi = (msiod *)kev->udata;
/* process all the pending events for this IOD */
process_iod_events(nsp, nsi, get_evmask(nsi, kev));
IOD_PROPSET(nsi, IOD_PROCESSED);
}
for (n = 0; n < evcount; n++) {
struct kevent *kev = &kinfo->events[n];
nsi = (msiod *)kev->udata;
if (nsi->state == NSIOD_STATE_DELETED) {
if (IOD_PROPGET(nsi, IOD_PROCESSED)) {
IOD_PROPCLR(nsi, IOD_PROCESSED);
gh_list_remove(&nsp->active_iods, &nsi->nodeq);
gh_list_prepend(&nsp->free_iods, &nsi->nodeq);
}
}
}
/* iterate through timers and expired events */
process_expired_events(nsp);
}
int poll_iod_register(struct npool *nsp, struct niod *iod, int ev) {
struct poll_engine_info *pinfo = (struct poll_engine_info *)nsp->engine_data;
int sd;
assert(!IOD_PROPGET(iod, IOD_REGISTERED));
iod->watched_events = ev;
sd = nsi_getsd(iod);
while (pinfo->capacity < sd + 1)
evlist_grow(pinfo);
pinfo->events[sd].fd = sd;
pinfo->events[sd].events = 0;
pinfo->events[sd].revents = 0;
pinfo->max_fd = MAX(pinfo->max_fd, sd);
if (ev & EV_READ)
pinfo->events[sd].events |= POLL_R_FLAGS;
if (ev & EV_WRITE)
pinfo->events[sd].events |= POLL_W_FLAGS;
#ifndef WIN32
if (ev & EV_EXCEPT)
pinfo->events[sd].events |= POLL_X_FLAGS;
#endif
IOD_PROPSET(iod, IOD_REGISTERED);
return 1;
}
int epoll_iod_register(mspool *nsp, msiod *iod, int ev) {
int sd;
struct epoll_event epev;
struct epoll_engine_info *einfo = (struct epoll_engine_info *)nsp->engine_data;
assert(!IOD_PROPGET(iod, IOD_REGISTERED));
iod->watched_events = ev;
memset(&epev, 0x00, sizeof(struct epoll_event));
epev.events = EPOLLET;
epev.data.ptr = (void *)iod;
if (ev & EV_READ)
epev.events |= EPOLL_R_FLAGS;
if (ev & EV_WRITE)
epev.events |= EPOLL_W_FLAGS;
if (ev & EV_EXCEPT)
epev.events |= EPOLL_X_FLAGS;
sd = nsi_getsd(iod);
if (epoll_ctl(einfo->epfd, EPOLL_CTL_ADD, sd, &epev) < 0)
fatal("Unable to register IOD #%lu: %s", iod->id, strerror(errno));
IOD_PROPSET(iod, IOD_REGISTERED);
return 1;
}
int select_iod_register(mspool *nsp, msiod *iod, int ev) {
assert(!IOD_PROPGET(iod, IOD_REGISTERED));
iod->watched_events = ev;
select_iod_modify(nsp, iod, ev, EV_NONE);
IOD_PROPSET(iod, IOD_REGISTERED);
return 1;
}
/* Iterate through all the event lists (such as connect_events, read_events,
* timer_events, etc) and take action for those that have completed (due to
* timeout, i/o, etc) */
void iterate_through_event_lists(mspool *nsp, int evcount) {
int n;
struct kqueue_engine_info *kinfo = (struct kqueue_engine_info *)nsp->engine_data;
gh_list_elem *current, *next, *last, *timer_last;
msevent *nse;
msiod *nsi;
/* Clear it -- We will find the next event as we go through the list */
nsp->next_ev.tv_sec = 0;
last = GH_LIST_LAST_ELEM(&nsp->active_iods);
timer_last = GH_LIST_LAST_ELEM(&nsp->timer_events);
for (n = 0; n < evcount; n++) {
struct kevent *kev = &kinfo->events[n];
nsi = (msiod *)kev->udata;
/* process all the pending events for this IOD */
process_iod_events(nsp, nsi, get_evmask(nsi, kev));
IOD_PROPSET(nsi, IOD_PROCESSED);
}
current = GH_LIST_FIRST_ELEM(&nsp->active_iods);
/* cull timeouts amongst the non active IODs */
while (current != NULL && GH_LIST_ELEM_PREV(current) != last) {
msiod *nsi = (msiod *)GH_LIST_ELEM_DATA(current);
if (IOD_PROPGET(nsi, IOD_PROCESSED))
IOD_PROPCLR(nsi, IOD_PROCESSED);
else if (nsi->state != NSIOD_STATE_DELETED && nsi->events_pending)
process_iod_events(nsp, nsi, EV_NONE);
next = GH_LIST_ELEM_NEXT(current);
if (nsi->state == NSIOD_STATE_DELETED) {
gh_list_remove_elem(&nsp->active_iods, current);
gh_list_prepend(&nsp->free_iods, nsi);
}
current = next;
}
/* iterate through timers */
for (current = GH_LIST_FIRST_ELEM(&nsp->timer_events);
current != NULL && GH_LIST_ELEM_PREV(current) != timer_last; current = next) {
nse = (msevent *)GH_LIST_ELEM_DATA(current);
process_event(nsp, &nsp->timer_events, nse, EV_NONE);
next = GH_LIST_ELEM_NEXT(current);
if (nse->event_done)
gh_list_remove_elem(&nsp->timer_events, current);
}
}
int kqueue_iod_register(mspool *nsp, msiod *iod, int ev) {
struct kqueue_engine_info *kinfo = (struct kqueue_engine_info *)nsp->engine_data;
assert(!IOD_PROPGET(iod, IOD_REGISTERED));
IOD_PROPSET(iod, IOD_REGISTERED);
iod->watched_events = EV_NONE;
kqueue_iod_modify(nsp, iod, ev, EV_NONE);
if (nsi_getsd(iod) > kinfo->maxfd)
kinfo->maxfd = nsi_getsd(iod);
return 1;
}
