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c6302cd6e7
git-svn-id: http://svn.irssi.org/repos/irssi/trunk@2016 dbcabf3a-b0e7-0310-adc4-f8d773084564
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/*
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lag.c : irssi
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Copyright (C) 1999 Timo Sirainen
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "module.h"
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#include "signals.h"
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#include "misc.h"
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#include "settings.h"
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#include "irc-servers.h"
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#include "servers-redirect.h"
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static int timeout_tag;
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static void lag_get(IRC_SERVER_REC *server)
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{
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g_get_current_time(&server->lag_sent);
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server->lag_last_check = time(NULL);
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server_redirect_event(server, "ping", 1, NULL, FALSE,
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"lag ping error",
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"event pong", "lag pong", NULL);
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irc_send_cmdv(server, "PING %s", server->real_address);
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}
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/* we didn't receive PONG for some reason .. try again */
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static void lag_ping_error(IRC_SERVER_REC *server)
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{
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lag_get(server);
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}
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static void lag_event_pong(IRC_SERVER_REC *server, const char *data,
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const char *nick, const char *addr)
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{
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GTimeVal now;
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g_return_if_fail(data != NULL);
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if (server->lag_sent.tv_sec == 0) {
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/* not expecting lag reply.. */
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return;
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}
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g_get_current_time(&now);
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server->lag = (int) get_timeval_diff(&now, &server->lag_sent);
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memset(&server->lag_sent, 0, sizeof(server->lag_sent));
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signal_emit("server lag", 1, server);
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}
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static int sig_check_lag(void)
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{
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GSList *tmp, *next;
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time_t now;
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int lag_check_time, max_lag;
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lag_check_time = settings_get_int("lag_check_time");
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max_lag = settings_get_int("lag_max_before_disconnect");
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if (lag_check_time <= 0)
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return 1;
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now = time(NULL);
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for (tmp = servers; tmp != NULL; tmp = next) {
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IRC_SERVER_REC *rec = tmp->data;
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next = tmp->next;
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if (!IS_IRC_SERVER(rec))
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continue;
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if (rec->lag_sent.tv_sec != 0) {
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/* waiting for lag reply */
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if (max_lag > 1 && now-rec->lag_sent.tv_sec > max_lag) {
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/* too much lag, disconnect */
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signal_emit("server lag disconnect", 1, rec);
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rec->connection_lost = TRUE;
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server_disconnect((SERVER_REC *) rec);
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}
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} else if (rec->lag_last_check+lag_check_time < now &&
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rec->cmdcount == 0 && rec->connected) {
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/* no commands in buffer - get the lag */
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lag_get(rec);
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}
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}
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return 1;
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}
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void lag_init(void)
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{
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settings_add_int("misc", "lag_check_time", 30);
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settings_add_int("misc", "lag_max_before_disconnect", 300);
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timeout_tag = g_timeout_add(1000, (GSourceFunc) sig_check_lag, NULL);
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signal_add_first("lag pong", (SIGNAL_FUNC) lag_event_pong);
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signal_add("lag ping error", (SIGNAL_FUNC) lag_ping_error);
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}
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void lag_deinit(void)
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{
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g_source_remove(timeout_tag);
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signal_remove("lag pong", (SIGNAL_FUNC) lag_event_pong);
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signal_remove("lag ping error", (SIGNAL_FUNC) lag_ping_error);
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}
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