-/* $Id$ */
-
/***
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
#include <config.h>
#endif
+#include <stdlib.h>
+
#include <avahi-common/domain.h>
#include <avahi-common/timeval.h>
+#include <avahi-common/malloc.h>
#include "probe-sched.h"
#include "log.h"
+#include "rr-util.h"
#define AVAHI_PROBE_HISTORY_MSEC 150
#define AVAHI_PROBE_DEFER_MSEC 50
struct AvahiProbeJob {
AvahiProbeScheduler *scheduler;
AvahiTimeEvent *time_event;
-
- gboolean chosen; /* Use for packet assembling */
- gboolean done;
+
+ int chosen; /* Use for packet assembling */
+ int done;
struct timeval delivery;
AvahiRecord *record;
-
+
AVAHI_LLIST_FIELDS(AvahiProbeJob, jobs);
};
AVAHI_LLIST_HEAD(AvahiProbeJob, history);
};
-static AvahiProbeJob* job_new(AvahiProbeScheduler *s, AvahiRecord *record, gboolean done) {
+static AvahiProbeJob* job_new(AvahiProbeScheduler *s, AvahiRecord *record, int done) {
AvahiProbeJob *pj;
-
- g_assert(s);
- g_assert(record);
- pj = g_new(AvahiProbeJob, 1);
+ assert(s);
+ assert(record);
+
+ if (!(pj = avahi_new(AvahiProbeJob, 1))) {
+ avahi_log_error(__FILE__": Out of memory");
+ return NULL; /* OOM */
+ }
+
pj->scheduler = s;
pj->record = avahi_record_ref(record);
pj->time_event = NULL;
- pj->chosen = FALSE;
+ pj->chosen = 0;
if ((pj->done = done))
AVAHI_LLIST_PREPEND(AvahiProbeJob, jobs, s->history, pj);
}
static void job_free(AvahiProbeScheduler *s, AvahiProbeJob *pj) {
- g_assert(pj);
+ assert(pj);
if (pj->time_event)
- avahi_time_event_queue_remove(s->time_event_queue, pj->time_event);
+ avahi_time_event_free(pj->time_event);
if (pj->done)
AVAHI_LLIST_REMOVE(AvahiProbeJob, jobs, s->history, pj);
AVAHI_LLIST_REMOVE(AvahiProbeJob, jobs, s->jobs, pj);
avahi_record_unref(pj->record);
- g_free(pj);
+ avahi_free(pj);
}
-static void elapse_callback(AvahiTimeEvent *e, gpointer data);
+static void elapse_callback(AvahiTimeEvent *e, void* data);
-static void job_set_elapse_time(AvahiProbeScheduler *s, AvahiProbeJob *pj, guint msec, guint jitter) {
+static void job_set_elapse_time(AvahiProbeScheduler *s, AvahiProbeJob *pj, unsigned msec, unsigned jitter) {
struct timeval tv;
- g_assert(s);
- g_assert(pj);
+ assert(s);
+ assert(pj);
avahi_elapse_time(&tv, msec, jitter);
if (pj->time_event)
- avahi_time_event_queue_update(s->time_event_queue, pj->time_event, &tv);
+ avahi_time_event_update(pj->time_event, &tv);
else
- pj->time_event = avahi_time_event_queue_add(s->time_event_queue, &tv, elapse_callback, pj);
+ pj->time_event = avahi_time_event_new(s->time_event_queue, &tv, elapse_callback, pj);
}
static void job_mark_done(AvahiProbeScheduler *s, AvahiProbeJob *pj) {
- g_assert(s);
- g_assert(pj);
+ assert(s);
+ assert(pj);
- g_assert(!pj->done);
+ assert(!pj->done);
AVAHI_LLIST_REMOVE(AvahiProbeJob, jobs, s->jobs, pj);
AVAHI_LLIST_PREPEND(AvahiProbeJob, jobs, s->history, pj);
- pj->done = TRUE;
+ pj->done = 1;
job_set_elapse_time(s, pj, AVAHI_PROBE_HISTORY_MSEC, 0);
gettimeofday(&pj->delivery, NULL);
AvahiProbeScheduler *avahi_probe_scheduler_new(AvahiInterface *i) {
AvahiProbeScheduler *s;
- g_assert(i);
+ assert(i);
+
+ if (!(s = avahi_new(AvahiProbeScheduler, 1))) {
+ avahi_log_error(__FILE__": Out of memory");
+ return NULL;
+ }
- s = g_new(AvahiProbeScheduler, 1);
s->interface = i;
s->time_event_queue = i->monitor->server->time_event_queue;
AVAHI_LLIST_HEAD_INIT(AvahiProbeJob, s->jobs);
AVAHI_LLIST_HEAD_INIT(AvahiProbeJob, s->history);
-
+
return s;
}
void avahi_probe_scheduler_free(AvahiProbeScheduler *s) {
- g_assert(s);
+ assert(s);
avahi_probe_scheduler_clear(s);
- g_free(s);
+ avahi_free(s);
}
void avahi_probe_scheduler_clear(AvahiProbeScheduler *s) {
- g_assert(s);
-
+ assert(s);
+
while (s->jobs)
job_free(s, s->jobs);
while (s->history)
job_free(s, s->history);
}
-
-static gboolean packet_add_probe_query(AvahiProbeScheduler *s, AvahiDnsPacket *p, AvahiProbeJob *pj) {
- guint size;
+
+static int packet_add_probe_query(AvahiProbeScheduler *s, AvahiDnsPacket *p, AvahiProbeJob *pj) {
+ size_t size;
AvahiKey *k;
- gboolean b;
+ int b;
+
+ assert(s);
+ assert(p);
+ assert(pj);
- g_assert(s);
- g_assert(p);
- g_assert(pj);
+ assert(!pj->chosen);
- g_assert(!pj->chosen);
-
/* Estimate the size for this record */
size =
avahi_key_get_estimate_size(pj->record->key) +
/* Too large */
if (size > avahi_dns_packet_space(p))
- return FALSE;
+ return 0;
/* Create the probe query */
- k = avahi_key_new(pj->record->key->name, pj->record->key->clazz, AVAHI_DNS_TYPE_ANY);
- b = !!avahi_dns_packet_append_key(p, k, FALSE);
- g_assert(b);
+ if (!(k = avahi_key_new(pj->record->key->name, pj->record->key->clazz, AVAHI_DNS_TYPE_ANY)))
+ return 0; /* OOM */
+
+ b = !!avahi_dns_packet_append_key(p, k, 0);
+ assert(b);
/* Mark this job for addition to the packet */
- pj->chosen = TRUE;
+ pj->chosen = 1;
/* Scan for more jobs whith matching key pattern */
for (pj = s->jobs; pj; pj = pj->jobs_next) {
/* Does the record match the probe? */
if (k->clazz != pj->record->key->clazz || !avahi_domain_equal(k->name, pj->record->key->name))
continue;
-
+
/* This job wouldn't fit in */
if (avahi_record_get_estimate_size(pj->record) > avahi_dns_packet_space(p))
break;
/* Mark this job for addition to the packet */
- pj->chosen = TRUE;
+ pj->chosen = 1;
}
avahi_key_unref(k);
-
- return TRUE;
+
+ return 1;
}
-static void elapse_callback(AvahiTimeEvent *e, gpointer data) {
+static void elapse_callback(AVAHI_GCC_UNUSED AvahiTimeEvent *e, void* data) {
AvahiProbeJob *pj = data, *next;
AvahiProbeScheduler *s;
AvahiDnsPacket *p;
- guint n;
+ unsigned n;
- g_assert(pj);
+ assert(pj);
s = pj->scheduler;
if (pj->done) {
return;
}
- p = avahi_dns_packet_new_query(s->interface->hardware->mtu);
+ if (!(p = avahi_dns_packet_new_query(s->interface->hardware->mtu)))
+ return; /* OOM */
n = 1;
-
+
/* Add the import probe */
if (!packet_add_probe_query(s, p, pj)) {
- guint size;
+ size_t size;
AvahiKey *k;
- gboolean b;
+ int b;
avahi_dns_packet_free(p);
avahi_key_get_estimate_size(pj->record->key) +
avahi_record_get_estimate_size(pj->record) +
AVAHI_DNS_PACKET_HEADER_SIZE;
-
- if (size > AVAHI_DNS_PACKET_MAX_SIZE)
- size = AVAHI_DNS_PACKET_MAX_SIZE;
-
- p = avahi_dns_packet_new_query(size);
-
- k = avahi_key_new(pj->record->key->name, pj->record->key->clazz, AVAHI_DNS_TYPE_ANY);
- b = avahi_dns_packet_append_key(p, k, FALSE) && avahi_dns_packet_append_record(p, pj->record, FALSE, 0);
+
+ if (!(p = avahi_dns_packet_new_query(size + AVAHI_DNS_PACKET_EXTRA_SIZE)))
+ return; /* OOM */
+
+ if (!(k = avahi_key_new(pj->record->key->name, pj->record->key->clazz, AVAHI_DNS_TYPE_ANY))) {
+ avahi_dns_packet_free(p);
+ return; /* OOM */
+ }
+
+ b = avahi_dns_packet_append_key(p, k, 0) && avahi_dns_packet_append_record(p, pj->record, 0, 0);
avahi_key_unref(k);
if (b) {
avahi_dns_packet_set_field(p, AVAHI_DNS_FIELD_QDCOUNT, 1);
avahi_interface_send_packet(s->interface, p);
} else
- avahi_log_warn("Probe record too large, cannot send");
-
+ avahi_log_warn("Probe record too large, cannot send");
+
avahi_dns_packet_free(p);
job_mark_done(s, pj);
if (pj->chosen)
continue;
-
+
if (!packet_add_probe_query(s, p, pj))
break;
-
+
n++;
}
if (!pj->chosen)
continue;
- if (!avahi_dns_packet_append_record(p, pj->record, FALSE, 0)) {
- avahi_log_warn("Bad probe size estimate!");
+ if (!avahi_dns_packet_append_record(p, pj->record, 0, 0)) {
+/* avahi_log_warn("Bad probe size estimate!"); */
/* Unmark all following jobs */
for (; pj; pj = pj->jobs_next)
- pj->chosen = FALSE;
-
+ pj->chosen = 0;
+
break;
}
job_mark_done(s, pj);
-
+
n ++;
}
-
+
avahi_dns_packet_set_field(p, AVAHI_DNS_FIELD_NSCOUNT, n);
/* Send it now */
static AvahiProbeJob* find_scheduled_job(AvahiProbeScheduler *s, AvahiRecord *record) {
AvahiProbeJob *pj;
- g_assert(s);
- g_assert(record);
+ assert(s);
+ assert(record);
for (pj = s->jobs; pj; pj = pj->jobs_next) {
- g_assert(!pj->done);
-
+ assert(!pj->done);
+
if (avahi_record_equal_no_ttl(pj->record, record))
return pj;
}
static AvahiProbeJob* find_history_job(AvahiProbeScheduler *s, AvahiRecord *record) {
AvahiProbeJob *pj;
-
- g_assert(s);
- g_assert(record);
+
+ assert(s);
+ assert(record);
for (pj = s->history; pj; pj = pj->jobs_next) {
- g_assert(pj->done);
+ assert(pj->done);
if (avahi_record_equal_no_ttl(pj->record, record)) {
/* Check whether this entry is outdated */
job_free(s, pj);
return NULL;
}
-
+
return pj;
}
}
return NULL;
}
-gboolean avahi_probe_scheduler_post(AvahiProbeScheduler *s, AvahiRecord *record, gboolean immediately) {
+int avahi_probe_scheduler_post(AvahiProbeScheduler *s, AvahiRecord *record, int immediately) {
AvahiProbeJob *pj;
struct timeval tv;
-
- g_assert(s);
- g_assert(record);
- g_assert(!avahi_key_is_pattern(record->key));
+
+ assert(s);
+ assert(record);
+ assert(!avahi_key_is_pattern(record->key));
if ((pj = find_history_job(s, record)))
- return FALSE;
+ return 0;
avahi_elapse_time(&tv, immediately ? 0 : AVAHI_PROBE_DEFER_MSEC, 0);
if (avahi_timeval_compare(&tv, &pj->delivery) < 0) {
/* If the new entry should be scheduled earlier, update the old entry */
pj->delivery = tv;
- avahi_time_event_queue_update(s->time_event_queue, pj->time_event, &pj->delivery);
+ avahi_time_event_update(pj->time_event, &pj->delivery);
}
- return TRUE;
+ return 1;
} else {
/* Create a new job and schedule it */
- pj = job_new(s, record, FALSE);
+ if (!(pj = job_new(s, record, 0)))
+ return 0; /* OOM */
+
pj->delivery = tv;
- pj->time_event = avahi_time_event_queue_add(s->time_event_queue, &pj->delivery, elapse_callback, pj);
+ pj->time_event = avahi_time_event_new(s->time_event_queue, &pj->delivery, elapse_callback, pj);
+
-
/* avahi_log_debug("Accepted new probe job."); */
- return TRUE;
+ return 1;
}
}
projects / catta / blobdiff