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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC

4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.5 (); 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
21use Coro::Storable;
19 22
23use BDB ();
20use Data::Dumper; 24use Data::Dumper;
21use Digest::MD5; 25use Digest::MD5;
22use Fcntl; 26use Fcntl;
27use YAML::Syck ();
23use IO::AIO 2.32 (); 28use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 29use Time::HiRes;
30use Compress::LZF;
26 31
32# configure various modules to our taste
33#
34$Storable::canonical = 1; # reduce rsync transfers
35Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
36Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 38$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 39
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 40# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 41$YAML::Syck::ImplicitUnicode = 1;
33 42
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 43$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44
45sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 46
36our %COMMAND = (); 47our %COMMAND = ();
37our %COMMAND_TIME = (); 48our %COMMAND_TIME = ();
38 49
39our @EXTS = (); # list of extension package names 50our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 51our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 52our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 53our %EXT_MAP = (); # pluggable maps
43 54
55our $RELOAD; # number of reloads so far
44our @EVENT; 56our @EVENT;
45our $LIBDIR = datadir . "/ext"; 57our $LIBDIR = datadir . "/ext";
46 58
47our $TICK = MAX_TIME * 1e-6; 59our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 60our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 61our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 62our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 63our $NEXT_TICK;
52our $NOW; 64our $NOW;
65our $USE_FSYNC = 1; # use fsync to write maps - default off
66
67our $BDB_POLL_WATCHER;
68our $DB_ENV;
53 69
54our %CFG; 70our %CFG;
55 71
56our $UPTIME; $UPTIME ||= time; 72our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 73our $RUNTIME;
58 74
59our %PLAYER; # all users 75our %PLAYER; # all users
60our %MAP; # all maps 76our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 77our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 78our $RANDOM_MAPS = cf::localdir . "/random";
79our $BDB_ENV_DIR = cf::localdir . "/db";
63 80
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 81our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 82our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 83
67# used to convert map paths into valid unix filenames by replacing / by ∕ 84# used to convert map paths into valid unix filenames by replacing / by ∕
80mkdir cf::localdir; 97mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 98mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 99mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 100mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 101mkdir $RANDOM_MAPS;
102mkdir $BDB_ENV_DIR;
85 103
86our $EMERGENCY_POSITION; 104our $EMERGENCY_POSITION;
87 105
88sub cf::map::normalise; 106sub cf::map::normalise;
89 107
192 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 210 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193 $d 211 $d
194 } || "[unable to dump $_[0]: '$@']"; 212 } || "[unable to dump $_[0]: '$@']";
195} 213}
196 214
197use JSON::Syck (); # TODO# replace by JSON::PC once working 215use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
198 216
199=item $ref = cf::from_json $json 217=item $ref = cf::from_json $json
200 218
201Converts a JSON string into the corresponding perl data structure. 219Converts a JSON string into the corresponding perl data structure.
202 220
203=cut
204
205sub from_json($) {
206 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207 JSON::Syck::Load $_[0]
208}
209
210=item $json = cf::to_json $ref 221=item $json = cf::to_json $ref
211 222
212Converts a perl data structure into its JSON representation. 223Converts a perl data structure into its JSON representation.
213
214=cut
215
216sub to_json($) {
217 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218 JSON::Syck::Dump $_[0]
219}
220 224
221=item cf::lock_wait $string 225=item cf::lock_wait $string
222 226
223Wait until the given lock is available. See cf::lock_acquire. 227Wait until the given lock is available. See cf::lock_acquire.
224 228
263sub freeze_mainloop { 267sub freeze_mainloop {
264 return unless $TICK_WATCHER->is_active; 268 return unless $TICK_WATCHER->is_active;
265 269
266 my $guard = Coro::guard { 270 my $guard = Coro::guard {
267 $TICK_WATCHER->start; 271 $TICK_WATCHER->start;
268 $WRITE_RUNTIME_WATCHER->start;
269 }; 272 };
270 $WRITE_RUNTIME_WATCHER->stop;
271 $TICK_WATCHER->stop; 273 $TICK_WATCHER->stop;
272 $guard 274 $guard
273} 275}
274 276
275=item cf::async { BLOCK } 277=item cf::async { BLOCK }
346 348
347 $coro 349 $coro
348} 350}
349 351
350sub write_runtime { 352sub write_runtime {
353 my $guard = cf::lock_acquire "write_runtime";
354
351 my $runtime = cf::localdir . "/runtime"; 355 my $runtime = cf::localdir . "/runtime";
352 356
353 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 357 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354 or return; 358 or return;
355 359
358 # 60 allows for the watchdog to kill the server. 362 # 60 allows for the watchdog to kill the server.
359 363
360 (aio_write $fh, 0, (length $value), $value, 0) <= 0 364 (aio_write $fh, 0, (length $value), $value, 0) <= 0
361 and return; 365 and return;
362 366
367 # always fsync - this file is important
363 aio_fsync $fh 368 aio_fsync $fh
364 and return; 369 and return;
365 370
366 close $fh 371 close $fh
367 or return; 372 or return;
368 373
369 aio_rename "$runtime~", $runtime 374 aio_rename "$runtime~", $runtime
370 and return; 375 and return;
371 376
372 1 377 1
378}
379
380=item cf::datalog type => key => value, ...
381
382Log a datalog packet of the given type with the given key-value pairs.
383
384=cut
385
386sub datalog($@) {
387 my ($type, %kv) = @_;
388 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373} 389}
374 390
375=back 391=back
376 392
377=cut 393=cut
752 $filename, length $$rdata, scalar @$objs; 768 $filename, length $$rdata, scalar @$objs;
753 769
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 772 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 773 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 774 close $fh;
759 775
760 if (@$objs) { 776 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh; 778 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 779 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 780 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 781 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 782 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 783 aio_rename "$filename.pst~", "$filename.pst";
768 } 784 }
769 } else { 785 } else {
770 aio_unlink "$filename.pst"; 786 aio_unlink "$filename.pst";
776 } 792 }
777 } else { 793 } else {
778 aio_unlink $filename; 794 aio_unlink $filename;
779 aio_unlink "$filename.pst"; 795 aio_unlink "$filename.pst";
780 } 796 }
781
782 #d##TODO# nuke non .map-files if exist
783 if ($filename =~ s/\.map$//) {
784 aio_unlink $filename;
785 aio_unlink "$filename.pst";
786 }
787 } 797 }
788} 798}
789 799
790sub object_freezer_as_string { 800sub object_freezer_as_string {
791 my ($rdata, $objs) = @_; 801 my ($rdata, $objs) = @_;
797 807
798sub object_thawer_load { 808sub object_thawer_load {
799 my ($filename) = @_; 809 my ($filename) = @_;
800 810
801 my ($data, $av); 811 my ($data, $av);
802
803 #d#TODO remove .map if file does not exist
804 aio_stat $filename and $filename =~ s/\.map$//;
805 812
806 (aio_load $filename, $data) >= 0 813 (aio_load $filename, $data) >= 0
807 or return; 814 or return;
808 815
809 unless (aio_stat "$filename.pst") { 816 unless (aio_stat "$filename.pst") {
958} 965}
959 966
960sub path($) { 967sub path($) {
961 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962 969
963 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
964} 971}
965 972
966sub find_active($) { 973sub find_active($) {
967 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
968 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
981 my $login = $_[0]; 988 my $login = $_[0];
982 989
983 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
984 991
985 $cf::PLAYER{$_[0]} || do { 992 $cf::PLAYER{$_[0]} || do {
993 # rename old playerfiles to new ones
994 #TODO: remove when no longer required
995 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997 aio_unlink +(playerdir $login) . "/$login.pl.pst";
998 aio_unlink +(playerdir $login) . "/$login.pl";
999
986 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
987 or return; 1001 or return;
988 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
989 } 1003 }
990 } 1004 }
1027 1041
1028=cut 1042=cut
1029 1043
1030sub quit_character { 1044sub quit_character {
1031 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1032 1048
1033 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1034 $pl->password ("*"); # this should lock out the player until we nuked the dir 1050 $pl->password ("*"); # this should lock out the player until we nuked the dir
1035 1051
1036 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1041 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1042 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1043 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1044 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1045 $pl->destroy; 1061 $pl->destroy;
1062
1063 my $prefix = qr<^~\Q$name\E/>;
1064
1065 # nuke player maps
1066 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1067
1046 IO::AIO::aio_rmtree $temp; 1068 IO::AIO::aio_rmtree $temp;
1069}
1070
1071=item $pl->kick
1072
1073Kicks a player out of the game. This destroys the connection.
1074
1075=cut
1076
1077sub kick {
1078 my ($pl, $kicker) = @_;
1079
1080 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1081 $pl->killer ("kicked");
1082 $pl->ns->destroy;
1047} 1083}
1048 1084
1049=item cf::player::list_logins 1085=item cf::player::list_logins
1050 1086
1051Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
1079=cut 1115=cut
1080 1116
1081sub maps($) { 1117sub maps($) {
1082 my ($pl) = @_; 1118 my ($pl) = @_;
1083 1119
1120 $pl = ref $pl ? $pl->ob->name : $pl;
1121
1084 my $files = aio_readdir playerdir $pl 1122 my $files = aio_readdir playerdir $pl
1085 or return; 1123 or return;
1086 1124
1087 my @paths; 1125 my @paths;
1088 1126
1089 for (@$files) { 1127 for (@$files) {
1090 utf8::decode $_; 1128 utf8::decode $_;
1091 next if /\.(?:pl|pst)$/; 1129 next if /\.(?:pl|pst)$/;
1092 next unless /^$PATH_SEP/o; 1130 next unless /^$PATH_SEP/o;
1093 1131
1094 push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_; 1132 push @paths, cf::map::normalise "~$pl/$_";
1095 } 1133 }
1096 1134
1097 \@paths 1135 \@paths
1098} 1136}
1099 1137
1100=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1101 1139
1102Sends an ext reply to the player. 1140Sends an ext reply to the player.
1103 1141
1104=cut 1142=cut
1105 1143
1106sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1107 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1108 1146
1109 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1110 1148
1111 $self->send ("ext " . cf::to_json \%msg); 1149 $self->send ("ext " . cf::to_json \%msg);
1112} 1150}
1113 1151
1114package cf; 1152=item $player->ext_event ($type, %msg)
1153
1154Sends an ext event to the client.
1155
1156=cut
1157
1158sub ext_event($$%) {
1159 my ($self, $type, %msg) = @_;
1160
1161 $self->ns->ext_event ($type, %msg);
1162}
1163
1164=head3 cf::region
1165
1166=over 4
1167
1168=cut
1169
1170package cf::region;
1171
1172=item cf::region::find_by_path $path
1173
1174Tries to decuce the probable region for a map knowing only its path.
1175
1176=cut
1177
1178sub find_by_path($) {
1179 my ($path) = @_;
1180
1181 my ($match, $specificity);
1182
1183 for my $region (list) {
1184 if ($region->match && $path =~ $region->match) {
1185 ($match, $specificity) = ($region, $region->specificity)
1186 if $region->specificity > $specificity;
1187 }
1188 }
1189
1190 $match
1191}
1115 1192
1116=back 1193=back
1117
1118 1194
1119=head3 cf::map 1195=head3 cf::map
1120 1196
1121=over 4 1197=over 4
1122 1198
1294 my ($self) = @_; 1370 my ($self) = @_;
1295 1371
1296 utf8::encode (my $save = $self->save_path); 1372 utf8::encode (my $save = $self->save_path);
1297 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1373 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1374 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300 #d#TODO remove .map and also nuke
1301 $save =~ s/\.map// or return;#d#
1302 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304} 1375}
1305 1376
1306sub load_header_from($) { 1377sub load_header_from($) {
1307 my ($self, $path) = @_; 1378 my ($self, $path) = @_;
1308 1379
1357 } else { 1428 } else {
1358 $self->load_header_orig 1429 $self->load_header_orig
1359 or return; 1430 or return;
1360 $self->prepare_orig; 1431 $self->prepare_orig;
1361 } 1432 }
1433
1434 $self->default_region (cf::region::find_by_path $self->{path})
1435 unless $self->default_region;
1362 1436
1363 1 1437 1
1364} 1438}
1365 1439
1366sub find; 1440sub find;
1596 return if $self->players; 1670 return if $self->players;
1597 return if $self->isa ("ext::map_per_player");#d# 1671 return if $self->isa ("ext::map_per_player");#d#
1598 1672
1599 warn "resetting map ", $self->path;#d# 1673 warn "resetting map ", $self->path;#d#
1600 1674
1675 $self->in_memory (cf::MAP_SWAPPED);
1676
1677 # need to save uniques path
1678 unless ($self->{deny_save}) {
1679 my $uniq = $self->uniq_path; utf8::encode $uniq;
1680
1681 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1682 if $uniq;
1683 }
1684
1601 delete $cf::MAP{$self->path}; 1685 delete $cf::MAP{$self->path};
1602 1686
1603 $self->in_memory (cf::MAP_SWAPPED);
1604 $self->clear; 1687 $self->clear;
1605 1688
1606 $_->clear_links_to ($self) for values %cf::MAP; 1689 $_->clear_links_to ($self) for values %cf::MAP;
1607 1690
1608 $self->unlink_save; 1691 $self->unlink_save;
1798 $map->load; 1881 $map->load;
1799 $map->load_diag; 1882 $map->load_diag;
1800 1883
1801 return unless $self->contr->active; 1884 return unless $self->contr->active;
1802 $self->activate_recursive; 1885 $self->activate_recursive;
1886
1887 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803 $self->enter_map ($map, $x, $y); 1888 $self->enter_map ($map, $x, $y);
1804} 1889}
1805 1890
1806cf::player->attach ( 1891cf::player->attach (
1807 on_logout => sub { 1892 on_logout => sub {
1820 # try to abort aborted map switching on player login :) 1905 # try to abort aborted map switching on player login :)
1821 # should happen only on crashes 1906 # should happen only on crashes
1822 if ($pl->ob->{_link_pos}) { 1907 if ($pl->ob->{_link_pos}) {
1823 $pl->ob->enter_link; 1908 $pl->ob->enter_link;
1824 (async { 1909 (async {
1825 # we need this sleep as the login has a concurrent enter_exit running
1826 # and this sleep increases chances of the player not ending up in scorn
1827 $pl->ob->reply (undef, 1910 $pl->ob->reply (undef,
1828 "There was an internal problem at your last logout, " 1911 "There was an internal problem at your last logout, "
1829 . "the server will try to bring you to your intended destination in a second.", 1912 . "the server will try to bring you to your intended destination in a second.",
1830 cf::NDI_RED); 1913 cf::NDI_RED);
1914 # we need this sleep as the login has a concurrent enter_exit running
1915 # and this sleep increases chances of the player not ending up in scorn
1831 Coro::Timer::sleep 1; 1916 Coro::Timer::sleep 1;
1832 $pl->ob->leave_link; 1917 $pl->ob->leave_link;
1833 })->prio (2); 1918 })->prio (2);
1834 } 1919 }
1835 }, 1920 },
1918 2003
1919 return unless $self->type == cf::PLAYER; 2004 return unless $self->type == cf::PLAYER;
1920 2005
1921 if ($exit->slaying eq "/!") { 2006 if ($exit->slaying eq "/!") {
1922 #TODO: this should de-fi-ni-te-ly not be a sync-job 2007 #TODO: this should de-fi-ni-te-ly not be a sync-job
2008 # the problem is that $exit might not survive long enough
2009 # so it needs to be done right now, right here
1923 cf::sync_job { prepare_random_map $exit }; 2010 cf::sync_job { prepare_random_map $exit };
1924 } 2011 }
1925 2012
1926 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 2013 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927 my $hp = $exit->stats->hp; 2014 my $hp = $exit->stats->hp;
1935 $self->goto ($slaying, $hp, $sp); 2022 $self->goto ($slaying, $hp, $sp);
1936 2023
1937 1; 2024 1;
1938 }) { 2025 }) {
1939 $self->message ("Something went wrong deep within the crossfire server. " 2026 $self->message ("Something went wrong deep within the crossfire server. "
1940 . "I'll try to bring you back to the map you were before. " 2027 . "I'll try to bring you back to the map you were before. "
1941 . "Please report this to the dungeon master!", 2028 . "Please report this to the dungeon master!",
1942 cf::NDI_UNIQUE | cf::NDI_RED); 2029 cf::NDI_UNIQUE | cf::NDI_RED);
1943 2030
1944 warn "ERROR in enter_exit: $@"; 2031 warn "ERROR in enter_exit: $@";
1945 $self->leave_link; 2032 $self->leave_link;
1946 } 2033 }
1947 })->prio (1); 2034 })->prio (1);
1960 2047
1961sub cf::client::send_drawinfo { 2048sub cf::client::send_drawinfo {
1962 my ($self, $text, $flags) = @_; 2049 my ($self, $text, $flags) = @_;
1963 2050
1964 utf8::encode $text; 2051 utf8::encode $text;
1965 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2052 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966} 2053}
1967 2054
2055=item $client->ext_event ($type, %msg)
2056
2057Sends an exti event to the client.
2058
2059=cut
2060
2061sub cf::client::ext_event($$%) {
2062 my ($self, $type, %msg) = @_;
2063
2064 $msg{msgtype} = "event_$type";
2065 $self->send_packet ("ext " . cf::to_json \%msg);
2066}
1968 2067
1969=item $success = $client->query ($flags, "text", \&cb) 2068=item $success = $client->query ($flags, "text", \&cb)
1970 2069
1971Queues a query to the client, calling the given callback with 2070Queues a query to the client, calling the given callback with
1972the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2071the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2001 # get handled first 2100 # get handled first
2002 my $queue = delete $ns->{query_queue} 2101 my $queue = delete $ns->{query_queue}
2003 or return; # be conservative, not sure how that can happen, but we saw a crash here 2102 or return; # be conservative, not sure how that can happen, but we saw a crash here
2004 2103
2005 (shift @$queue)->[1]->($msg); 2104 (shift @$queue)->[1]->($msg);
2105 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006 2106
2007 push @{ $ns->{query_queue} }, @$queue; 2107 push @{ $ns->{query_queue} }, @$queue;
2008 2108
2009 if (@{ $ns->{query_queue} } == @$queue) { 2109 if (@{ $ns->{query_queue} } == @$queue) {
2010 if (@$queue) { 2110 if (@$queue) {
2068 2168
2069# here we export the classes and methods available to script code 2169# here we export the classes and methods available to script code
2070 2170
2071=pod 2171=pod
2072 2172
2073The following fucntions and emthods are available within a safe environment: 2173The following functions and methods are available within a safe environment:
2074 2174
2075 cf::object contr pay_amount pay_player map 2175 cf::object contr pay_amount pay_player map
2076 cf::object::player player 2176 cf::object::player player
2077 cf::player peaceful 2177 cf::player peaceful
2078 cf::map trigger 2178 cf::map trigger
2171The parameter C<$family> should best start with the name of the extension 2271The parameter C<$family> should best start with the name of the extension
2172using it, it should be unique. 2272using it, it should be unique.
2173 2273
2174=over 4 2274=over 4
2175 2275
2176=item $hashref = cf::db_get $family
2177
2178Return a hashref for use by the extension C<$family>, which can be
2179modified. After modifications, you have to call C<cf::db_dirty> or
2180C<cf::db_sync>.
2181
2182=item $value = cf::db_get $family => $key 2276=item $value = cf::db_get $family => $key
2183 2277
2184Returns a single value from the database 2278Returns a single value from the database.
2185
2186=item cf::db_put $family => $hashref
2187
2188Stores the given family hashref into the database. Updates are delayed, if
2189you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190 2279
2191=item cf::db_put $family => $key => $value 2280=item cf::db_put $family => $key => $value
2192 2281
2193Stores the given C<$value> in the family hash. Updates are delayed, if you 2282Stores the given C<$value> in the family.
2194want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196=item cf::db_dirty
2197
2198Marks the database as dirty, to be updated at a later time.
2199
2200=item cf::db_sync
2201
2202Immediately write the database to disk I<if it is dirty>.
2203 2283
2204=cut 2284=cut
2205 2285
2206our $DB; 2286our $DB;
2207 2287
2208{ 2288sub db_init {
2289 unless ($DB) {
2290 $DB = BDB::db_create $DB_ENV;
2291
2292 cf::sync_job {
2293 eval {
2294 $DB->set_flags (BDB::CHKSUM);
2295
2296 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2297 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2298 cf::cleanup "db_open(db): $!" if $!;
2299 };
2300 cf::cleanup "db_open(db): $@" if $@;
2301 };
2302
2209 my $path = cf::localdir . "/database.pst"; 2303 my $path = cf::localdir . "/database.pst";
2304 if (stat $path) {
2305 cf::sync_job {
2306 my $pst = Storable::retrieve $path;
2210 2307
2211 sub db_load() { 2308 cf::db_put (board => data => $pst->{board});
2212 $DB = stat $path ? Storable::retrieve $path : { }; 2309 cf::db_put (guildrules => data => $pst->{guildrules});
2213 } 2310 cf::db_put (rent => balance => $pst->{rent}{balance});
2311 BDB::db_env_txn_checkpoint $DB_ENV;
2214 2312
2215 my $pid; 2313 unlink $path;
2216
2217 sub db_save() {
2218 waitpid $pid, 0 if $pid;
2219 if (0 == ($pid = fork)) {
2220 $DB->{_meta}{version} = 1;
2221 Storable::nstore $DB, "$path~";
2222 rename "$path~", $path;
2223 cf::_exit 0 if defined $pid;
2224 } 2314 };
2225 }
2226
2227 my $dirty;
2228
2229 sub db_sync() {
2230 db_save if $dirty;
2231 undef $dirty;
2232 }
2233
2234 my $idle = Event->idle (
2235 reentrant => 0,
2236 min => 10,
2237 max => 20,
2238 repeat => 0,
2239 data => WF_AUTOCANCEL,
2240 cb => \&db_sync,
2241 );
2242
2243 sub db_dirty() {
2244 $dirty = 1;
2245 $idle->start;
2246 }
2247
2248 sub db_get($;$) {
2249 @_ >= 2
2250 ? $DB->{$_[0]}{$_[1]}
2251 : ($DB->{$_[0]} ||= { })
2252 }
2253
2254 sub db_put($$;$) {
2255 if (@_ >= 3) {
2256 $DB->{$_[0]}{$_[1]} = $_[2];
2257 } else {
2258 $DB->{$_[0]} = $_[1];
2259 }
2260 db_dirty;
2261 }
2262
2263 cf::global->attach (
2264 prio => 10000,
2265 on_cleanup => sub {
2266 db_sync;
2267 }, 2315 }
2268 ); 2316 }
2317}
2318
2319sub db_get($$) {
2320 my $key = "$_[0]/$_[1]";
2321
2322 cf::sync_job {
2323 BDB::db_get $DB, undef, $key, my $data;
2324
2325 $! ? ()
2326 : Compress::LZF::sthaw $data
2327 }
2328}
2329
2330sub db_put($$$) {
2331 BDB::dbreq_pri 4;
2332 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269} 2333}
2270 2334
2271############################################################################# 2335#############################################################################
2272# the server's main() 2336# the server's init and main functions
2337
2338sub load_facedata {
2339 my $path = sprintf "%s/facedata", cf::datadir;
2340
2341 warn "loading facedata from $path\n";
2342
2343 my $facedata;
2344 0 < aio_load $path, $facedata
2345 or die "$path: $!";
2346
2347 $facedata = Coro::Storable::thaw $facedata;
2348
2349 $facedata->{version} == 2
2350 or cf::cleanup "$path: version mismatch, cannot proceed.";
2351
2352 {
2353 my $faces = $facedata->{faceinfo};
2354
2355 while (my ($face, $info) = each %$faces) {
2356 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2357 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2358 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2359 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2360 Coro::cede;
2361 }
2362
2363 while (my ($face, $info) = each %$faces) {
2364 next unless $info->{smooth};
2365 my $idx = cf::face::find $face
2366 or next;
2367 if (my $smooth = cf::face::find $info->{smooth}) {
2368 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2369 } else {
2370 warn "smooth face '$info->{smooth}' not found for face '$face'";
2371 }
2372 Coro::cede;
2373 }
2374 }
2375
2376 {
2377 my $anims = $facedata->{animinfo};
2378
2379 while (my ($anim, $info) = each %$anims) {
2380 cf::anim::set $anim, $info->{frames}, $info->{facings};
2381 Coro::cede;
2382 }
2383
2384 cf::anim::invalidate_all; # d'oh
2385 }
2386
2387 1
2388}
2389
2390sub reload_resources {
2391 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2392 or die "unable to load regions file\n";#d#
2393 load_facedata
2394 or die "unable to load facedata\n";#d#
2395}
2396
2397sub init {
2398 reload_resources;
2399}
2273 2400
2274sub cfg_load { 2401sub cfg_load {
2275 open my $fh, "<:utf8", cf::confdir . "/config" 2402 open my $fh, "<:utf8", cf::confdir . "/config"
2276 or return; 2403 or return;
2277 2404
2300 Event::one_event; 2427 Event::one_event;
2301 })->prio (Coro::PRIO_MAX); 2428 })->prio (Coro::PRIO_MAX);
2302 }; 2429 };
2303 2430
2304 cfg_load; 2431 cfg_load;
2305 db_load; 2432 db_init;
2306 load_extensions; 2433 load_extensions;
2307 2434
2308 $TICK_WATCHER->start; 2435 $TICK_WATCHER->start;
2309 Event::loop; 2436 Event::loop;
2310} 2437}
2349 my $map = $cf::MAP{$path} or next; 2476 my $map = $cf::MAP{$path} or next;
2350 $map->valid or next; 2477 $map->valid or next;
2351 $map->save; 2478 $map->save;
2352 } 2479 }
2353 warn "end emergency map save\n"; 2480 warn "end emergency map save\n";
2481
2482 warn "begin emergency database checkpoint\n";
2483 BDB::db_env_txn_checkpoint $DB_ENV;
2484 warn "end emergency database checkpoint\n";
2354 }; 2485 };
2355 2486
2356 warn "leave emergency perl save\n"; 2487 warn "leave emergency perl save\n";
2488}
2489
2490sub post_cleanup {
2491 my ($make_core) = @_;
2492
2493 warn Carp::longmess "post_cleanup backtrace"
2494 if $make_core;
2357} 2495}
2358 2496
2359sub reload() { 2497sub reload() {
2360 # can/must only be called in main 2498 # can/must only be called in main
2361 if ($Coro::current != $Coro::main) { 2499 if ($Coro::current != $Coro::main) {
2363 return; 2501 return;
2364 } 2502 }
2365 2503
2366 warn "reloading..."; 2504 warn "reloading...";
2367 2505
2368 warn "cancelling server ticker"; 2506 warn "entering sync_job";
2369 $TICK_WATCHER->cancel;
2370 2507
2508 cf::sync_job {
2509 cf::write_runtime; # external watchdog should not bark
2371 cf::emergency_save; 2510 cf::emergency_save;
2511 cf::write_runtime; # external watchdog should not bark
2372 2512
2373 eval { 2513 warn "syncing database to disk";
2514 BDB::db_env_txn_checkpoint $DB_ENV;
2515
2374 # if anything goes wrong in here, we should simply crash as we already saved 2516 # if anything goes wrong in here, we should simply crash as we already saved
2375
2376 warn "syncing database to disk";
2377 cf::db_sync;
2378 2517
2379 warn "cancelling all WF_AUTOCANCEL watchers"; 2518 warn "cancelling all WF_AUTOCANCEL watchers";
2380 for (Event::all_watchers) { 2519 for (Event::all_watchers) {
2381 $_->cancel if $_->data & WF_AUTOCANCEL; 2520 $_->cancel if $_->data & WF_AUTOCANCEL;
2382 } 2521 }
2383 2522
2384 warn "flushing outstanding aio requests"; 2523 warn "flushing outstanding aio requests";
2385 for (;;) { 2524 for (;;) {
2525 BDB::flush;
2386 IO::AIO::flush; 2526 IO::AIO::flush;
2387 Coro::cede; 2527 Coro::cede;
2388 last unless IO::AIO::nreqs; 2528 last unless IO::AIO::nreqs || BDB::nreqs;
2389 warn "iterate..."; 2529 warn "iterate...";
2390 } 2530 }
2531
2532 ++$RELOAD;
2391 2533
2392 warn "cancelling all extension coros"; 2534 warn "cancelling all extension coros";
2393 $_->cancel for values %EXT_CORO; 2535 $_->cancel for values %EXT_CORO;
2394 %EXT_CORO = (); 2536 %EXT_CORO = ();
2395 2537
2448 require cf; 2590 require cf;
2449 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2591 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450 2592
2451 warn "loading config and database again"; 2593 warn "loading config and database again";
2452 cf::cfg_load; 2594 cf::cfg_load;
2453 cf::db_load;
2454 2595
2455 warn "loading extensions"; 2596 warn "loading extensions";
2456 cf::load_extensions; 2597 cf::load_extensions;
2457 2598
2458 warn "reattaching attachments to objects/players"; 2599 warn "reattaching attachments to objects/players";
2459 _global_reattach; 2600 _global_reattach; # objects, sockets
2460 warn "reattaching attachments to maps"; 2601 warn "reattaching attachments to maps";
2461 reattach $_ for values %MAP; 2602 reattach $_ for values %MAP;
2603 warn "reattaching attachments to players";
2604 reattach $_ for values %PLAYER;
2462 2605
2463 warn "restarting server ticker"; 2606 warn "loading reloadable resources";
2607 reload_resources;
2464 2608
2465 $TICK_WATCHER->start; 2609 warn "leaving sync_job";
2466 };
2467 2610
2468 if ($@) { 2611 1
2612 } or do {
2469 warn $@; 2613 warn $@;
2470 warn "error while reloading, exiting."; 2614 warn "error while reloading, exiting.";
2471 exit 1; 2615 exit 1;
2472 } 2616 };
2473 2617
2474 warn "reloaded"; 2618 warn "reloaded";
2475}; 2619};
2476 2620
2477our $RELOAD_WATCHER; # used only during reload 2621our $RELOAD_WATCHER; # used only during reload
2518 2662
2519 cf::server_tick; # one server iteration 2663 cf::server_tick; # one server iteration
2520 $RUNTIME += $TICK; 2664 $RUNTIME += $TICK;
2521 $NEXT_TICK += $TICK; 2665 $NEXT_TICK += $TICK;
2522 2666
2667 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2668 $NEXT_RUNTIME_WRITE = $NOW + 10;
2669 Coro::async_pool {
2670 write_runtime
2671 or warn "ERROR: unable to write runtime file: $!";
2672 };
2673 }
2674
2523 $WAIT_FOR_TICK->broadcast; 2675 $WAIT_FOR_TICK->broadcast;
2524 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2676 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2525 2677
2526 Event::sweep;
2527 Coro::cede_notself;
2528
2529# my $AFTER = Event::time; 2678# my $AFTER = Event::time;
2530# warn $AFTER - $NOW;#d# 2679# warn $AFTER - $NOW;#d#
2531 2680
2532 # if we are delayed by four ticks or more, skip them all 2681 # if we are delayed by four ticks or more, skip them all
2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2682 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2535 $TICK_WATCHER->at ($NEXT_TICK); 2684 $TICK_WATCHER->at ($NEXT_TICK);
2536 $TICK_WATCHER->start; 2685 $TICK_WATCHER->start;
2537 }, 2686 },
2538); 2687);
2539 2688
2689{
2690 BDB::max_poll_time $TICK * 0.1;
2691 $BDB_POLL_WATCHER = Event->io (
2692 reentrant => 0,
2693 fd => BDB::poll_fileno,
2694 poll => 'r',
2695 prio => 0,
2696 data => WF_AUTOCANCEL,
2697 cb => \&BDB::poll_cb,
2698 );
2699 BDB::min_parallel 8;
2700
2701 BDB::set_sync_prepare {
2702 my $status;
2703 my $current = $Coro::current;
2704 (
2705 sub {
2706 $status = $!;
2707 $current->ready; undef $current;
2708 },
2709 sub {
2710 Coro::schedule while defined $current;
2711 $! = $status;
2712 },
2713 )
2714 };
2715
2716 unless ($DB_ENV) {
2717 $DB_ENV = BDB::db_env_create;
2718
2719 cf::sync_job {
2720 eval {
2721 BDB::db_env_open
2722 $DB_ENV,
2723 $BDB_ENV_DIR,
2724 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2725 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2726 0666;
2727
2728 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2729
2730 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2731 $DB_ENV->set_lk_detect;
2732 };
2733
2734 cf::cleanup "db_env_open(db): $@" if $@;
2735 };
2736 }
2737}
2738
2739{
2740 IO::AIO::min_parallel 8;
2741
2742 undef $Coro::AIO::WATCHER;
2540IO::AIO::max_poll_time $TICK * 0.1; 2743 IO::AIO::max_poll_time $TICK * 0.1;
2541
2542undef $Coro::AIO::WATCHER;
2543$AIO_POLL_WATCHER = Event->io ( 2744 $AIO_POLL_WATCHER = Event->io (
2544 reentrant => 0, 2745 reentrant => 0,
2746 data => WF_AUTOCANCEL,
2545 fd => IO::AIO::poll_fileno, 2747 fd => IO::AIO::poll_fileno,
2546 poll => 'r', 2748 poll => 'r',
2547 prio => 6, 2749 prio => 6,
2548 data => WF_AUTOCANCEL,
2549 cb => \&IO::AIO::poll_cb, 2750 cb => \&IO::AIO::poll_cb,
2550); 2751 );
2551 2752}
2552$WRITE_RUNTIME_WATCHER = Event->timer (
2553 reentrant => 0,
2554 data => WF_AUTOCANCEL,
2555 after => 1,
2556 interval => 10,
2557 prio => 6, # keep it lowest so it acts like a watchdog
2558 cb => Coro::unblock_sub {
2559 write_runtime
2560 or warn "ERROR: unable to write runtime file: $!";
2561 },
2562);
2563 2753
2564END { cf::emergency_save } 2754END { cf::emergency_save }
2565 2755
25661 27561
2567 2757

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