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- /*-
- * Copyright 2019 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- #include "libev_helper.h"
-
- static void
- rspamd_ev_watcher_io_cb (EV_P_ struct ev_io *w, int revents)
- {
- struct rspamd_io_ev *ev = (struct rspamd_io_ev *)w->data;
-
- ev->last_activity = ev_now (EV_A);
- ev->cb (ev->io.fd, revents, ev->ud);
- }
-
- static void
- rspamd_ev_watcher_timer_cb (EV_P_ struct ev_timer *w, int revents)
- {
- struct rspamd_io_ev *ev = (struct rspamd_io_ev *)w->data;
-
- ev_tstamp after = ev->last_activity - ev_now (EV_A) + ev->timeout;
-
- if (after < 0.) {
- /* Real timeout */
- ev->cb (ev->io.fd, EV_TIMER, ev->ud);
- }
- else {
- /* Start another cycle as there was some activity */
- w->repeat = after;
- ev_timer_again (EV_A_ w);
- }
- }
-
-
- void
- rspamd_ev_watcher_init (struct rspamd_io_ev *ev,
- int fd,
- short what,
- rspamd_ev_cb cb,
- void *ud)
- {
- ev_io_init (&ev->io, rspamd_ev_watcher_io_cb, fd, what);
- ev->io.data = ev;
- ev_init (&ev->tm, rspamd_ev_watcher_timer_cb);
- ev->tm.data = ev;
- ev->ud = ud;
- ev->cb = cb;
- }
-
- void
- rspamd_ev_watcher_start (struct ev_loop *loop,
- struct rspamd_io_ev *ev,
- ev_tstamp timeout)
- {
- g_assert (ev->cb != NULL);
-
- ev->last_activity = ev_now (EV_A);
- ev_io_start (EV_A_ &ev->io);
-
- if (timeout > 0) {
- /* Update timestamp to avoid timers running early */
- ev_now_update (loop);
-
- ev->timeout = timeout;
- ev_timer_set (&ev->tm, timeout, 0.0);
- ev_timer_start (EV_A_ &ev->tm);
- }
- }
-
- void
- rspamd_ev_watcher_stop (struct ev_loop *loop,
- struct rspamd_io_ev *ev)
- {
- if (ev_can_stop (&ev->io)) {
- ev_io_stop (EV_A_ &ev->io);
- }
-
- if (ev->timeout > 0) {
- ev_timer_stop (EV_A_ &ev->tm);
- }
- }
-
- void
- rspamd_ev_watcher_reschedule (struct ev_loop *loop,
- struct rspamd_io_ev *ev,
- short what)
- {
- g_assert (ev->cb != NULL);
-
- if (ev_can_stop (&ev->io)) {
- ev_io_stop (EV_A_ &ev->io);
- ev_io_set (&ev->io, ev->io.fd, what);
- ev_io_start (EV_A_ &ev->io);
- }
- else {
- ev->io.data = ev;
- ev_io_init (&ev->io, rspamd_ev_watcher_io_cb, ev->io.fd, what);
- ev_io_start (EV_A_ &ev->io);
- }
-
- if (ev->timeout > 0) {
- if (!(ev_can_stop (&ev->tm))) {
- /* Update timestamp to avoid timers running early */
- ev_now_update (loop);
-
- ev->tm.data = ev;
- ev_timer_init (&ev->tm, rspamd_ev_watcher_timer_cb, ev->timeout, 0.0);
- ev_timer_start (EV_A_ &ev->tm);
- }
- }
-
- ev->last_activity = ev_now (EV_A);
- }
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