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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 1.237 by root, Fri Apr 13 05:08:51 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);
1150}
1151
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);
1112} 1162}
1113 1163
1114package cf; 1164package cf;
1115 1165
1116=back 1166=back
… …
1294 my ($self) = @_; 1344 my ($self) = @_;
1295 1345
1296 utf8::encode (my $save = $self->save_path); 1346 utf8::encode (my $save = $self->save_path);
1297 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1347 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1348 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} 1349}
1305 1350
1306sub load_header_from($) { 1351sub load_header_from($) {
1307 my ($self, $path) = @_; 1352 my ($self, $path) = @_;
1308 1353
… …
1596 return if $self->players; 1641 return if $self->players;
1597 return if $self->isa ("ext::map_per_player");#d# 1642 return if $self->isa ("ext::map_per_player");#d#
1598 1643
1599 warn "resetting map ", $self->path;#d# 1644 warn "resetting map ", $self->path;#d#
1600 1645
1646 $self->in_memory (cf::MAP_SWAPPED);
1647
1648 # need to save uniques path
1649 unless ($self->{deny_save}) {
1650 my $uniq = $self->uniq_path; utf8::encode $uniq;
1651
1652 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1653 if $uniq;
1654 }
1655
1601 delete $cf::MAP{$self->path}; 1656 delete $cf::MAP{$self->path};
1602 1657
1603 $self->in_memory (cf::MAP_SWAPPED);
1604 $self->clear; 1658 $self->clear;
1605 1659
1606 $_->clear_links_to ($self) for values %cf::MAP; 1660 $_->clear_links_to ($self) for values %cf::MAP;
1607 1661
1608 $self->unlink_save; 1662 $self->unlink_save;
… …
1798 $map->load; 1852 $map->load;
1799 $map->load_diag; 1853 $map->load_diag;
1800 1854
1801 return unless $self->contr->active; 1855 return unless $self->contr->active;
1802 $self->activate_recursive; 1856 $self->activate_recursive;
1857
1858 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803 $self->enter_map ($map, $x, $y); 1859 $self->enter_map ($map, $x, $y);
1804} 1860}
1805 1861
1806cf::player->attach ( 1862cf::player->attach (
1807 on_logout => sub { 1863 on_logout => sub {
… …
1820 # try to abort aborted map switching on player login :) 1876 # try to abort aborted map switching on player login :)
1821 # should happen only on crashes 1877 # should happen only on crashes
1822 if ($pl->ob->{_link_pos}) { 1878 if ($pl->ob->{_link_pos}) {
1823 $pl->ob->enter_link; 1879 $pl->ob->enter_link;
1824 (async { 1880 (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, 1881 $pl->ob->reply (undef,
1828 "There was an internal problem at your last logout, " 1882 "There was an internal problem at your last logout, "
1829 . "the server will try to bring you to your intended destination in a second.", 1883 . "the server will try to bring you to your intended destination in a second.",
1830 cf::NDI_RED); 1884 cf::NDI_RED);
1885 # we need this sleep as the login has a concurrent enter_exit running
1886 # and this sleep increases chances of the player not ending up in scorn
1831 Coro::Timer::sleep 1; 1887 Coro::Timer::sleep 1;
1832 $pl->ob->leave_link; 1888 $pl->ob->leave_link;
1833 })->prio (2); 1889 })->prio (2);
1834 } 1890 }
1835 }, 1891 },
… …
1918 1974
1919 return unless $self->type == cf::PLAYER; 1975 return unless $self->type == cf::PLAYER;
1920 1976
1921 if ($exit->slaying eq "/!") { 1977 if ($exit->slaying eq "/!") {
1922 #TODO: this should de-fi-ni-te-ly not be a sync-job 1978 #TODO: this should de-fi-ni-te-ly not be a sync-job
1979 # the problem is that $exit might not survive long enough
1980 # so it needs to be done right now, right here
1923 cf::sync_job { prepare_random_map $exit }; 1981 cf::sync_job { prepare_random_map $exit };
1924 } 1982 }
1925 1983
1926 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 1984 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927 my $hp = $exit->stats->hp; 1985 my $hp = $exit->stats->hp;
… …
1935 $self->goto ($slaying, $hp, $sp); 1993 $self->goto ($slaying, $hp, $sp);
1936 1994
1937 1; 1995 1;
1938 }) { 1996 }) {
1939 $self->message ("Something went wrong deep within the crossfire server. " 1997 $self->message ("Something went wrong deep within the crossfire server. "
1940 . "I'll try to bring you back to the map you were before. " 1998 . "I'll try to bring you back to the map you were before. "
1941 . "Please report this to the dungeon master!", 1999 . "Please report this to the dungeon master!",
1942 cf::NDI_UNIQUE | cf::NDI_RED); 2000 cf::NDI_UNIQUE | cf::NDI_RED);
1943 2001
1944 warn "ERROR in enter_exit: $@"; 2002 warn "ERROR in enter_exit: $@";
1945 $self->leave_link; 2003 $self->leave_link;
1946 } 2004 }
1947 })->prio (1); 2005 })->prio (1);
… …
1960 2018
1961sub cf::client::send_drawinfo { 2019sub cf::client::send_drawinfo {
1962 my ($self, $text, $flags) = @_; 2020 my ($self, $text, $flags) = @_;
1963 2021
1964 utf8::encode $text; 2022 utf8::encode $text;
1965 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2023 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966} 2024}
1967 2025
2026=item $client->ext_event ($type, %msg)
2027
2028Sends an exti event to the client.
2029
2030=cut
2031
2032sub cf::client::ext_event($$%) {
2033 my ($self, $type, %msg) = @_;
2034
2035 $msg{msgtype} = "event_$type";
2036 $self->send_packet ("ext " . cf::to_json \%msg);
2037}
1968 2038
1969=item $success = $client->query ($flags, "text", \&cb) 2039=item $success = $client->query ($flags, "text", \&cb)
1970 2040
1971Queues a query to the client, calling the given callback with 2041Queues a query to the client, calling the given callback with
1972the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2042the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
… …
2001 # get handled first 2071 # get handled first
2002 my $queue = delete $ns->{query_queue} 2072 my $queue = delete $ns->{query_queue}
2003 or return; # be conservative, not sure how that can happen, but we saw a crash here 2073 or return; # be conservative, not sure how that can happen, but we saw a crash here
2004 2074
2005 (shift @$queue)->[1]->($msg); 2075 (shift @$queue)->[1]->($msg);
2076 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006 2077
2007 push @{ $ns->{query_queue} }, @$queue; 2078 push @{ $ns->{query_queue} }, @$queue;
2008 2079
2009 if (@{ $ns->{query_queue} } == @$queue) { 2080 if (@{ $ns->{query_queue} } == @$queue) {
2010 if (@$queue) { 2081 if (@$queue) {
… …
2068 2139
2069# here we export the classes and methods available to script code 2140# here we export the classes and methods available to script code
2070 2141
2071=pod 2142=pod
2072 2143
2073The following fucntions and emthods are available within a safe environment: 2144The following functions and methods are available within a safe environment:
2074 2145
2075 cf::object contr pay_amount pay_player map 2146 cf::object contr pay_amount pay_player map
2076 cf::object::player player 2147 cf::object::player player
2077 cf::player peaceful 2148 cf::player peaceful
2078 cf::map trigger 2149 cf::map trigger
… …
2171The parameter C<$family> should best start with the name of the extension 2242The parameter C<$family> should best start with the name of the extension
2172using it, it should be unique. 2243using it, it should be unique.
2173 2244
2174=over 4 2245=over 4
2175 2246
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 2247=item $value = cf::db_get $family => $key
2183 2248
2184Returns a single value from the database 2249Returns 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 2250
2191=item cf::db_put $family => $key => $value 2251=item cf::db_put $family => $key => $value
2192 2252
2193Stores the given C<$value> in the family hash. Updates are delayed, if you 2253Stores 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 2254
2204=cut 2255=cut
2205 2256
2206our $DB; 2257our $DB;
2207 2258
2208{ 2259sub db_init {
2260 unless ($DB) {
2261 $DB = BDB::db_create $DB_ENV;
2262
2263 cf::sync_job {
2264 eval {
2265 $DB->set_flags (BDB::CHKSUM);
2266
2267 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269 cf::cleanup "db_open(db): $!" if $!;
2270 };
2271 cf::cleanup "db_open(db): $@" if $@;
2272 };
2273
2209 my $path = cf::localdir . "/database.pst"; 2274 my $path = cf::localdir . "/database.pst";
2275 if (stat $path) {
2276 cf::sync_job {
2277 my $pst = Storable::retrieve $path;
2210 2278
2211 sub db_load() { 2279 cf::db_put (board => data => $pst->{board});
2212 $DB = stat $path ? Storable::retrieve $path : { }; 2280 cf::db_put (guildrules => data => $pst->{guildrules});
2213 } 2281 cf::db_put (rent => balance => $pst->{rent}{balance});
2282 BDB::db_env_txn_checkpoint $DB_ENV;
2214 2283
2215 my $pid; 2284 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 } 2285 };
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($$;$) {
2255 if (@_ >= 3) {
2256 $DB->{$_[0]}{$_[1]} = $_[2];
2257 } else {
2258 $DB->{$_[0]} = $_[1];
2259 }
2260 db_dirty;
2261 }
2262
2263 cf::global->attach (
2264 prio => 10000,
2265 on_cleanup => sub {
2266 db_sync;
2267 }, 2286 }
2268 ); 2287 }
2288}
2289
2290sub db_get($$) {
2291 my $key = "$_[0]/$_[1]";
2292
2293 cf::sync_job {
2294 BDB::db_get $DB, undef, $key, my $data;
2295
2296 $! ? ()
2297 : Compress::LZF::sthaw $data
2298 }
2299}
2300
2301sub db_put($$$) {
2302 BDB::dbreq_pri 4;
2303 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269} 2304}
2270 2305
2271############################################################################# 2306#############################################################################
2272# the server's main() 2307# the server's init and main functions
2308
2309sub load_facedata {
2310 my $path = sprintf "%s/facedata", cf::datadir;
2311
2312 warn "loading facedata from $path\n";
2313
2314 my $facedata;
2315 0 < aio_load $path, $facedata
2316 or die "$path: $!";
2317
2318 $facedata = Coro::Storable::thaw $facedata;
2319
2320 $facedata->{version} == 2
2321 or cf::cleanup "$path: version mismatch, cannot proceed.";
2322
2323 {
2324 my $faces = $facedata->{faceinfo};
2325
2326 while (my ($face, $info) = each %$faces) {
2327 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2328 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2329 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2330 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2331 Coro::cede;
2332 }
2333
2334 while (my ($face, $info) = each %$faces) {
2335 next unless $info->{smooth};
2336 my $idx = cf::face::find $face
2337 or next;
2338 if (my $smooth = cf::face::find $info->{smooth}) {
2339 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2340 } else {
2341 warn "smooth face '$info->{smooth}' not found for face '$face'";
2342 }
2343 Coro::cede;
2344 }
2345 }
2346
2347 {
2348 my $anims = $facedata->{animinfo};
2349
2350 while (my ($anim, $info) = each %$anims) {
2351 cf::anim::set $anim, $info->{frames}, $info->{facings};
2352 Coro::cede;
2353 }
2354
2355 cf::anim::invalidate_all; # d'oh
2356 }
2357
2358 1
2359}
2360
2361sub reload_resources {
2362 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2363 or die "unable to load regions file\n";#d#
2364 load_facedata
2365 or die "unable to load facedata\n";#d#
2366}
2367
2368sub init {
2369 reload_resources;
2370}
2273 2371
2274sub cfg_load { 2372sub cfg_load {
2275 open my $fh, "<:utf8", cf::confdir . "/config" 2373 open my $fh, "<:utf8", cf::confdir . "/config"
2276 or return; 2374 or return;
2277 2375
… …
2300 Event::one_event; 2398 Event::one_event;
2301 })->prio (Coro::PRIO_MAX); 2399 })->prio (Coro::PRIO_MAX);
2302 }; 2400 };
2303 2401
2304 cfg_load; 2402 cfg_load;
2305 db_load; 2403 db_init;
2306 load_extensions; 2404 load_extensions;
2307 2405
2308 $TICK_WATCHER->start; 2406 $TICK_WATCHER->start;
2309 Event::loop; 2407 Event::loop;
2310} 2408}
… …
2349 my $map = $cf::MAP{$path} or next; 2447 my $map = $cf::MAP{$path} or next;
2350 $map->valid or next; 2448 $map->valid or next;
2351 $map->save; 2449 $map->save;
2352 } 2450 }
2353 warn "end emergency map save\n"; 2451 warn "end emergency map save\n";
2452
2453 warn "begin emergency database checkpoint\n";
2454 BDB::db_env_txn_checkpoint $DB_ENV;
2455 warn "end emergency database checkpoint\n";
2354 }; 2456 };
2355 2457
2356 warn "leave emergency perl save\n"; 2458 warn "leave emergency perl save\n";
2459}
2460
2461sub post_cleanup {
2462 my ($make_core) = @_;
2463
2464 warn Carp::longmess "post_cleanup backtrace"
2465 if $make_core;
2357} 2466}
2358 2467
2359sub reload() { 2468sub reload() {
2360 # can/must only be called in main 2469 # can/must only be called in main
2361 if ($Coro::current != $Coro::main) { 2470 if ($Coro::current != $Coro::main) {
… …
2363 return; 2472 return;
2364 } 2473 }
2365 2474
2366 warn "reloading..."; 2475 warn "reloading...";
2367 2476
2368 warn "cancelling server ticker"; 2477 warn "entering sync_job";
2369 $TICK_WATCHER->cancel;
2370 2478
2479 cf::sync_job {
2480 cf::write_runtime; # external watchdog should not bark
2371 cf::emergency_save; 2481 cf::emergency_save;
2482 cf::write_runtime; # external watchdog should not bark
2372 2483
2373 eval { 2484 warn "syncing database to disk";
2485 BDB::db_env_txn_checkpoint $DB_ENV;
2486
2374 # if anything goes wrong in here, we should simply crash as we already saved 2487 # 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 2488
2379 warn "cancelling all WF_AUTOCANCEL watchers"; 2489 warn "cancelling all WF_AUTOCANCEL watchers";
2380 for (Event::all_watchers) { 2490 for (Event::all_watchers) {
2381 $_->cancel if $_->data & WF_AUTOCANCEL; 2491 $_->cancel if $_->data & WF_AUTOCANCEL;
2382 } 2492 }
2383 2493
2384 warn "flushing outstanding aio requests"; 2494 warn "flushing outstanding aio requests";
2385 for (;;) { 2495 for (;;) {
2496 BDB::flush;
2386 IO::AIO::flush; 2497 IO::AIO::flush;
2387 Coro::cede; 2498 Coro::cede;
2388 last unless IO::AIO::nreqs; 2499 last unless IO::AIO::nreqs || BDB::nreqs;
2389 warn "iterate..."; 2500 warn "iterate...";
2390 } 2501 }
2502
2503 ++$RELOAD;
2391 2504
2392 warn "cancelling all extension coros"; 2505 warn "cancelling all extension coros";
2393 $_->cancel for values %EXT_CORO; 2506 $_->cancel for values %EXT_CORO;
2394 %EXT_CORO = (); 2507 %EXT_CORO = ();
2395 2508
… …
2448 require cf; 2561 require cf;
2449 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2562 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450 2563
2451 warn "loading config and database again"; 2564 warn "loading config and database again";
2452 cf::cfg_load; 2565 cf::cfg_load;
2453 cf::db_load;
2454 2566
2455 warn "loading extensions"; 2567 warn "loading extensions";
2456 cf::load_extensions; 2568 cf::load_extensions;
2457 2569
2458 warn "reattaching attachments to objects/players"; 2570 warn "reattaching attachments to objects/players";
2459 _global_reattach; 2571 _global_reattach; # objects, sockets
2460 warn "reattaching attachments to maps"; 2572 warn "reattaching attachments to maps";
2461 reattach $_ for values %MAP; 2573 reattach $_ for values %MAP;
2574 warn "reattaching attachments to players";
2575 reattach $_ for values %PLAYER;
2462 2576
2463 warn "restarting server ticker"; 2577 warn "loading reloadable resources";
2578 reload_resources;
2464 2579
2465 $TICK_WATCHER->start; 2580 warn "leaving sync_job";
2466 };
2467 2581
2468 if ($@) { 2582 1
2583 } or do {
2469 warn $@; 2584 warn $@;
2470 warn "error while reloading, exiting."; 2585 warn "error while reloading, exiting.";
2471 exit 1; 2586 exit 1;
2472 } 2587 };
2473 2588
2474 warn "reloaded"; 2589 warn "reloaded";
2475}; 2590};
2476 2591
2477our $RELOAD_WATCHER; # used only during reload 2592our $RELOAD_WATCHER; # used only during reload
… …
2518 2633
2519 cf::server_tick; # one server iteration 2634 cf::server_tick; # one server iteration
2520 $RUNTIME += $TICK; 2635 $RUNTIME += $TICK;
2521 $NEXT_TICK += $TICK; 2636 $NEXT_TICK += $TICK;
2522 2637
2638 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639 $NEXT_RUNTIME_WRITE = $NOW + 10;
2640 Coro::async_pool {
2641 write_runtime
2642 or warn "ERROR: unable to write runtime file: $!";
2643 };
2644 }
2645
2523 $WAIT_FOR_TICK->broadcast; 2646 $WAIT_FOR_TICK->broadcast;
2524 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2647 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2525 2648
2526 Event::sweep;
2527 Coro::cede_notself;
2528
2529# my $AFTER = Event::time; 2649# my $AFTER = Event::time;
2530# warn $AFTER - $NOW;#d# 2650# warn $AFTER - $NOW;#d#
2531 2651
2532 # if we are delayed by four ticks or more, skip them all 2652 # if we are delayed by four ticks or more, skip them all
2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2653 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2535 $TICK_WATCHER->at ($NEXT_TICK); 2655 $TICK_WATCHER->at ($NEXT_TICK);
2536 $TICK_WATCHER->start; 2656 $TICK_WATCHER->start;
2537 }, 2657 },
2538); 2658);
2539 2659
2660{
2661 BDB::max_poll_time $TICK * 0.1;
2662 $BDB_POLL_WATCHER = Event->io (
2663 reentrant => 0,
2664 fd => BDB::poll_fileno,
2665 poll => 'r',
2666 prio => 0,
2667 data => WF_AUTOCANCEL,
2668 cb => \&BDB::poll_cb,
2669 );
2670 BDB::min_parallel 8;
2671
2672 BDB::set_sync_prepare {
2673 my $status;
2674 my $current = $Coro::current;
2675 (
2676 sub {
2677 $status = $!;
2678 $current->ready; undef $current;
2679 },
2680 sub {
2681 Coro::schedule while defined $current;
2682 $! = $status;
2683 },
2684 )
2685 };
2686
2687 unless ($DB_ENV) {
2688 $DB_ENV = BDB::db_env_create;
2689
2690 cf::sync_job {
2691 eval {
2692 BDB::db_env_open
2693 $DB_ENV,
2694 $BDB_ENV_DIR,
2695 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697 0666;
2698
2699 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2700
2701 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702 $DB_ENV->set_lk_detect;
2703 };
2704
2705 cf::cleanup "db_env_open(db): $@" if $@;
2706 };
2707 }
2708}
2709
2710{
2711 IO::AIO::min_parallel 8;
2712
2713 undef $Coro::AIO::WATCHER;
2540IO::AIO::max_poll_time $TICK * 0.1; 2714 IO::AIO::max_poll_time $TICK * 0.1;
2541
2542undef $Coro::AIO::WATCHER;
2543$AIO_POLL_WATCHER = Event->io ( 2715 $AIO_POLL_WATCHER = Event->io (
2544 reentrant => 0, 2716 reentrant => 0,
2717 data => WF_AUTOCANCEL,
2545 fd => IO::AIO::poll_fileno, 2718 fd => IO::AIO::poll_fileno,
2546 poll => 'r', 2719 poll => 'r',
2547 prio => 6, 2720 prio => 6,
2548 data => WF_AUTOCANCEL,
2549 cb => \&IO::AIO::poll_cb, 2721 cb => \&IO::AIO::poll_cb,
2550); 2722 );
2551 2723}
2552$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 2724
2564END { cf::emergency_save } 2725END { cf::emergency_save }
2565 2726
25661 27271
2567 2728

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