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/*
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* Copyright (C) 2000,2001 Onlyer (onlyer@263.net)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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 "common/setup_before.h"
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#include "setup.h"
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#ifdef STDC_HEADERS
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# include <stdlib.h>
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#else
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# ifdef HAVE_MALLOC_H
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# include <malloc.h>
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# endif
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#endif
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#include <errno.h>
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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# ifdef HAVE_MEMORY_H
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# include <memory.h>
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# endif
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#endif
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#include "compat/strdup.h"
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#ifdef TIME_WITH_SYS_TIME
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# include <time.h>
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# include <sys/time.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#ifdef DO_POSIXSIG
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# include <signal.h>
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# include "compat/signal.h"
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#endif
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#ifdef HAVE_FCNTL_H
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# include <fcntl.h>
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#else
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# ifdef HAVE_SYS_FILE_H
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# include <sys/file.h>
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# endif
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include "dbserver.h"
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#include "prefs.h"
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#include "d2ladder.h"
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#include "cmdline_parse.h"
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#include "handle_signal.h"
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#include "common/eventlog.h"
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#include "common/xalloc.h"
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#include "common/setup_after.h"
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static void on_signal(int s);
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static volatile struct
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{
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unsigned char do_quit;
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unsigned char cancel_quit;
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unsigned char reload_config;
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unsigned char save_ladder;
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unsigned int exit_time;
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} signal_data ={ 0, 0, 0, 0, 0 };
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extern int d2dbs_handle_signal(void)
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{
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time_t now;
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char const * levels;
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char * temp;
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char const * tok;
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if (signal_data.cancel_quit) {
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signal_data.cancel_quit=0;
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if (!signal_data.exit_time) {
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eventlog(eventlog_level_info,__FUNCTION__,"there is no previous shutdown to be canceled");
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} else {
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signal_data.exit_time=0;
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eventlog(eventlog_level_info,__FUNCTION__,"shutdown was canceled due to signal");
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}
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}
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if (signal_data.do_quit) {
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signal_data.do_quit=0;
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now=time(NULL);
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if (!signal_data.exit_time) {
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signal_data.exit_time=now+d2dbs_prefs_get_shutdown_delay();
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} else {
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signal_data.exit_time-=d2dbs_prefs_get_shutdown_decr();
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}
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eventlog(eventlog_level_info,__FUNCTION__,"the server is going to shutdown in %lu minutes",(signal_data.exit_time-now)/60);
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}
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if (signal_data.exit_time) {
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now=time(NULL);
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if (now >= (signed)signal_data.exit_time) {
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eventlog(eventlog_level_info,__FUNCTION__,"shutdown server due to signal");
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return -1;
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}
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}
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if (signal_data.reload_config) {
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signal_data.reload_config=0;
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eventlog(eventlog_level_info,__FUNCTION__,"reloading configuartion file due to signal");
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if (d2dbs_prefs_reload(d2dbs_cmdline_get_prefs_file())<0) {
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eventlog(eventlog_level_error,__FUNCTION__,"error reload configuration file,exitting");
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return -1;
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}
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eventlog_clear_level();
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if ((levels = d2dbs_prefs_get_loglevels()))
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{
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temp = xstrdup(levels);
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tok = strtok(temp,","); /* strtok modifies the string it is passed */
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while (tok)
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{
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if (eventlog_add_level(tok)<0)
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eventlog(eventlog_level_error,__FUNCTION__,"could not add log level \"%s\"",tok);
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tok = strtok(NULL,",");
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}
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xfree(temp);
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}
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if (!d2dbs_cmdline_get_debugmode()) eventlog_open(d2dbs_prefs_get_logfile());
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}
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if (signal_data.save_ladder) {
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signal_data.save_ladder=0;
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eventlog(eventlog_level_info,__FUNCTION__,"save ladder data due to signal");
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d2ladder_saveladder();
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}
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return 0;
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}
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#ifdef WIN32
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extern void d2dbs_signal_quit_wrapper(void)
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{
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signal_data.do_quit=1;
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}
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extern void d2dbs_signal_reload_config_wrapper(void)
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{
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signal_data.reload_config = 1;
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}
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extern void d2dbs_signal_save_ladder_wrapper(void)
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{
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signal_data.save_ladder = 1;
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}
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extern void d2dbs_signal_exit_wrapper(void)
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{
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signal_data.exit_time = 1;
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signal_data.do_quit = 1;
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}
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#else
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extern int d2dbs_handle_signal_init(void)
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{
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signal(SIGINT,on_signal);
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signal(SIGTERM,on_signal);
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signal(SIGABRT,on_signal);
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signal(SIGHUP,on_signal);
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signal(SIGUSR1,on_signal);
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signal(SIGPIPE,on_signal);
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return 0;
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}
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static void on_signal(int s)
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{
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switch (s) {
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case SIGINT:
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eventlog(eventlog_level_debug,__FUNCTION__,"sigint received");
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signal_data.do_quit=1;
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break;
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case SIGTERM:
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eventlog(eventlog_level_debug,__FUNCTION__,"sigint received");
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signal_data.do_quit=1;
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break;
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case SIGABRT:
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eventlog(eventlog_level_debug,__FUNCTION__,"sigabrt received");
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signal_data.cancel_quit=1;
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break;
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case SIGHUP:
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eventlog(eventlog_level_debug,__FUNCTION__,"sighup received");
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signal_data.reload_config=1;
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break;
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case SIGUSR1:
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eventlog(eventlog_level_debug,__FUNCTION__,"sigusr1 received");
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signal_data.save_ladder=1;
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break;
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case SIGPIPE:
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eventlog(eventlog_level_debug,__FUNCTION__,"sigpipe received");
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break;
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}
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signal(s,on_signal);
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}
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#endif
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