From c58379bde376cb2298fca14f83a86626f1b76f2f Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Sat, 7 May 2005 13:37:03 +0000 Subject: rename libavahi-core to avahi-core git-svn-id: file:///home/lennart/svn/public/avahi/trunk@57 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe --- avahi-core/timeeventq.c | 185 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 185 insertions(+) create mode 100644 avahi-core/timeeventq.c (limited to 'avahi-core/timeeventq.c') diff --git a/avahi-core/timeeventq.c b/avahi-core/timeeventq.c new file mode 100644 index 0000000..efce7b7 --- /dev/null +++ b/avahi-core/timeeventq.c @@ -0,0 +1,185 @@ +/* $Id$ */ + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "timeeventq.h" +#include "util.h" + +static gint compare(gconstpointer _a, gconstpointer _b) { + const AvahiTimeEvent *a = _a, *b = _b; + + return avahi_timeval_compare(&a->expiry, &b->expiry); +} + +static gboolean prepare_func(GSource *source, gint *timeout) { + AvahiTimeEventQueue *q = (AvahiTimeEventQueue*) source; + AvahiTimeEvent *e; + GTimeVal now; + + g_assert(source); + g_assert(timeout); + + if (!q->prioq->root) { + *timeout = -1; + return FALSE; + } + + e = q->prioq->root->data; + g_assert(e); + + g_source_get_current_time(source, &now); + + if (avahi_timeval_compare(&now, &e->expiry) >= 0) { + *timeout = -1; + return TRUE; + } + + *timeout = (gint) (avahi_timeval_diff(&e->expiry, &now)/1000); + + return FALSE; +} + +static gboolean check_func(GSource *source) { + AvahiTimeEventQueue *q = (AvahiTimeEventQueue*) source; + AvahiTimeEvent *e; + GTimeVal now; + + g_assert(source); + + if (!q->prioq->root) + return FALSE; + + e = q->prioq->root->data; + g_assert(e); + + g_source_get_current_time(source, &now); + + return avahi_timeval_compare(&now, &e->expiry) >= 0; +} + +static gboolean dispatch_func(GSource *source, GSourceFunc callback, gpointer user_data) { + AvahiTimeEventQueue *q = (AvahiTimeEventQueue*) source; + GTimeVal now; + + g_assert(source); + + g_source_get_current_time(source, &now); + + while (q->prioq->root) { + AvahiTimeEvent *e = q->prioq->root->data; + + if (avahi_timeval_compare(&now, &e->expiry) < 0) + break; + + g_assert(e->callback); + e->callback(e, e->userdata); + } + + return TRUE; +} + +AvahiTimeEventQueue* avahi_time_event_queue_new(GMainContext *context, gint priority) { + AvahiTimeEventQueue *q; + + static GSourceFuncs source_funcs = { + prepare_func, + check_func, + dispatch_func, + NULL, + NULL, + NULL + }; + + q = (AvahiTimeEventQueue*) g_source_new(&source_funcs, sizeof(AvahiTimeEventQueue)); + q->prioq = avahi_prio_queue_new(compare); + + g_source_set_priority((GSource*) q, priority); + + g_source_attach(&q->source, context); + + return q; +} + +void avahi_time_event_queue_free(AvahiTimeEventQueue *q) { + g_assert(q); + + while (q->prioq->root) + avahi_time_event_queue_remove(q, q->prioq->root->data); + avahi_prio_queue_free(q->prioq); + + g_source_destroy(&q->source); + g_source_unref(&q->source); +} + +AvahiTimeEvent* avahi_time_event_queue_add(AvahiTimeEventQueue *q, const GTimeVal *timeval, void (*callback)(AvahiTimeEvent *e, void *userdata), void *userdata) { + AvahiTimeEvent *e; + + g_assert(q); + g_assert(timeval); + g_assert(callback); + g_assert(userdata); + + e = g_new(AvahiTimeEvent, 1); + e->queue = q; + e->expiry = *timeval; + e->callback = callback; + e->userdata = userdata; + + e->node = avahi_prio_queue_put(q->prioq, e); + + return e; +} + +void avahi_time_event_queue_remove(AvahiTimeEventQueue *q, AvahiTimeEvent *e) { + g_assert(q); + g_assert(e); + g_assert(e->queue == q); + + avahi_prio_queue_remove(q->prioq, e->node); + g_free(e); +} + +void avahi_time_event_queue_update(AvahiTimeEventQueue *q, AvahiTimeEvent *e, const GTimeVal *timeval) { + g_assert(q); + g_assert(e); + g_assert(e->queue == q); + + e->expiry = *timeval; + + avahi_prio_queue_shuffle(q->prioq, e->node); +} + +AvahiTimeEvent* avahi_time_event_queue_root(AvahiTimeEventQueue *q) { + g_assert(q); + + return q->prioq->root ? q->prioq->root->data : NULL; +} + +AvahiTimeEvent* avahi_time_event_next(AvahiTimeEvent *e) { + g_assert(e); + + return e->node->next->data; +} + + -- cgit