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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 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 "$filename.pst";
… …
949} 965}
950 966
951sub path($) { 967sub path($) {
952 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953 969
954 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
955} 971}
956 972
957sub find_active($) { 973sub find_active($) {
958 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
959 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
… …
972 my $login = $_[0]; 988 my $login = $_[0];
973 989
974 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
975 991
976 $cf::PLAYER{$_[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
977 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
978 or return; 1001 or return;
979 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
980 } 1003 }
981 } 1004 }
… …
1018 1041
1019=cut 1042=cut
1020 1043
1021sub quit_character { 1044sub quit_character {
1022 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1023 1048
1024 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1025 $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
1026 1051
1027 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
… …
1032 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1033 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1034 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1035 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1036 $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
1037 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 $pl->ns->destroy;
1038} 1083}
1039 1084
1040=item cf::player::list_logins 1085=item cf::player::list_logins
1041 1086
1042Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
… …
1070=cut 1115=cut
1071 1116
1072sub maps($) { 1117sub maps($) {
1073 my ($pl) = @_; 1118 my ($pl) = @_;
1074 1119
1120 $pl = ref $pl ? $pl->ob->name : $pl;
1121
1075 my $files = aio_readdir playerdir $pl 1122 my $files = aio_readdir playerdir $pl
1076 or return; 1123 or return;
1077 1124
1078 my @paths; 1125 my @paths;
1079 1126
1080 for (@$files) { 1127 for (@$files) {
1081 utf8::decode $_; 1128 utf8::decode $_;
1082 next if /\.(?:pl|pst)$/; 1129 next if /\.(?:pl|pst)$/;
1083 next unless /^$PATH_SEP/o; 1130 next unless /^$PATH_SEP/o;
1084 1131
1085 push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_; 1132 push @paths, cf::map::normalise "~$pl/$_";
1086 } 1133 }
1087 1134
1088 \@paths 1135 \@paths
1089} 1136}
1090 1137
1091=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1092 1139
1093Sends an ext reply to the player. 1140Sends an ext reply to the player.
1094 1141
1095=cut 1142=cut
1096 1143
1097sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1098 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1099 1146
1100 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1101 1148
1102 $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);
1103} 1162}
1104 1163
1105package cf; 1164package cf;
1106 1165
1107=back 1166=back
… …
1251 1310
1252# the original (read-only) location 1311# the original (read-only) location
1253sub load_path { 1312sub load_path {
1254 my ($self) = @_; 1313 my ($self) = @_;
1255 1314
1256 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1315 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1257} 1316}
1258 1317
1259# the temporary/swap location 1318# the temporary/swap location
1260sub save_path { 1319sub save_path {
1261 my ($self) = @_; 1320 my ($self) = @_;
1262 1321
1263 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1322 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1323 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1265} 1324}
1266 1325
1267# the unique path, undef == no special unique path 1326# the unique path, undef == no special unique path
1268sub uniq_path { 1327sub uniq_path {
1269 my ($self) = @_; 1328 my ($self) = @_;
… …
1291 1350
1292sub load_header_from($) { 1351sub load_header_from($) {
1293 my ($self, $path) = @_; 1352 my ($self, $path) = @_;
1294 1353
1295 utf8::encode $path; 1354 utf8::encode $path;
1296 aio_open $path, O_RDONLY, 0 1355 #aio_open $path, O_RDONLY, 0
1297 or return; 1356 # or return;
1298 1357
1299 $self->_load_header ($path) 1358 $self->_load_header ($path)
1300 or return; 1359 or return;
1301 1360
1302 $self->{load_path} = $path; 1361 $self->{load_path} = $path;
… …
1582 return if $self->players; 1641 return if $self->players;
1583 return if $self->isa ("ext::map_per_player");#d# 1642 return if $self->isa ("ext::map_per_player");#d#
1584 1643
1585 warn "resetting map ", $self->path;#d# 1644 warn "resetting map ", $self->path;#d#
1586 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
1587 delete $cf::MAP{$self->path}; 1656 delete $cf::MAP{$self->path};
1588 1657
1589 $self->in_memory (cf::MAP_SWAPPED);
1590 $self->clear; 1658 $self->clear;
1591 1659
1592 $_->clear_links_to ($self) for values %cf::MAP; 1660 $_->clear_links_to ($self) for values %cf::MAP;
1593 1661
1594 $self->unlink_save; 1662 $self->unlink_save;
… …
1784 $map->load; 1852 $map->load;
1785 $map->load_diag; 1853 $map->load_diag;
1786 1854
1787 return unless $self->contr->active; 1855 return unless $self->contr->active;
1788 $self->activate_recursive; 1856 $self->activate_recursive;
1857
1858 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789 $self->enter_map ($map, $x, $y); 1859 $self->enter_map ($map, $x, $y);
1790} 1860}
1791 1861
1792cf::player->attach ( 1862cf::player->attach (
1793 on_logout => sub { 1863 on_logout => sub {
… …
1806 # try to abort aborted map switching on player login :) 1876 # try to abort aborted map switching on player login :)
1807 # should happen only on crashes 1877 # should happen only on crashes
1808 if ($pl->ob->{_link_pos}) { 1878 if ($pl->ob->{_link_pos}) {
1809 $pl->ob->enter_link; 1879 $pl->ob->enter_link;
1810 (async { 1880 (async {
1811 # we need this sleep as the login has a concurrent enter_exit running
1812 # and this sleep increases chances of the player not ending up in scorn
1813 $pl->ob->reply (undef, 1881 $pl->ob->reply (undef,
1814 "There was an internal problem at your last logout, " 1882 "There was an internal problem at your last logout, "
1815 . "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.",
1816 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
1817 Coro::Timer::sleep 1; 1887 Coro::Timer::sleep 1;
1818 $pl->ob->leave_link; 1888 $pl->ob->leave_link;
1819 })->prio (2); 1889 })->prio (2);
1820 } 1890 }
1821 }, 1891 },
… …
1904 1974
1905 return unless $self->type == cf::PLAYER; 1975 return unless $self->type == cf::PLAYER;
1906 1976
1907 if ($exit->slaying eq "/!") { 1977 if ($exit->slaying eq "/!") {
1908 #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
1909 cf::sync_job { prepare_random_map $exit }; 1981 cf::sync_job { prepare_random_map $exit };
1910 } 1982 }
1911 1983
1912 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;
1913 my $hp = $exit->stats->hp; 1985 my $hp = $exit->stats->hp;
… …
1921 $self->goto ($slaying, $hp, $sp); 1993 $self->goto ($slaying, $hp, $sp);
1922 1994
1923 1; 1995 1;
1924 }) { 1996 }) {
1925 $self->message ("Something went wrong deep within the crossfire server. " 1997 $self->message ("Something went wrong deep within the crossfire server. "
1926 . "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. "
1927 . "Please report this to the dungeon master!", 1999 . "Please report this to the dungeon master!",
1928 cf::NDI_UNIQUE | cf::NDI_RED); 2000 cf::NDI_UNIQUE | cf::NDI_RED);
1929 2001
1930 warn "ERROR in enter_exit: $@"; 2002 warn "ERROR in enter_exit: $@";
1931 $self->leave_link; 2003 $self->leave_link;
1932 } 2004 }
1933 })->prio (1); 2005 })->prio (1);
… …
1946 2018
1947sub cf::client::send_drawinfo { 2019sub cf::client::send_drawinfo {
1948 my ($self, $text, $flags) = @_; 2020 my ($self, $text, $flags) = @_;
1949 2021
1950 utf8::encode $text; 2022 utf8::encode $text;
1951 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2023 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952} 2024}
1953 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}
1954 2038
1955=item $success = $client->query ($flags, "text", \&cb) 2039=item $success = $client->query ($flags, "text", \&cb)
1956 2040
1957Queues a query to the client, calling the given callback with 2041Queues a query to the client, calling the given callback with
1958the 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>,
… …
1987 # get handled first 2071 # get handled first
1988 my $queue = delete $ns->{query_queue} 2072 my $queue = delete $ns->{query_queue}
1989 or return; # be conservative, not sure how that can happen, but we saw a crash here 2073 or return; # be conservative, not sure how that can happen, but we saw a crash here
1990 2074
1991 (shift @$queue)->[1]->($msg); 2075 (shift @$queue)->[1]->($msg);
2076 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992 2077
1993 push @{ $ns->{query_queue} }, @$queue; 2078 push @{ $ns->{query_queue} }, @$queue;
1994 2079
1995 if (@{ $ns->{query_queue} } == @$queue) { 2080 if (@{ $ns->{query_queue} } == @$queue) {
1996 if (@$queue) { 2081 if (@$queue) {
… …
2054 2139
2055# here we export the classes and methods available to script code 2140# here we export the classes and methods available to script code
2056 2141
2057=pod 2142=pod
2058 2143
2059The following fucntions and emthods are available within a safe environment: 2144The following functions and methods are available within a safe environment:
2060 2145
2061 cf::object contr pay_amount pay_player map 2146 cf::object contr pay_amount pay_player map
2062 cf::object::player player 2147 cf::object::player player
2063 cf::player peaceful 2148 cf::player peaceful
2064 cf::map trigger 2149 cf::map trigger
… …
2157The 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
2158using it, it should be unique. 2243using it, it should be unique.
2159 2244
2160=over 4 2245=over 4
2161 2246
2162=item $hashref = cf::db_get $family
2163
2164Return a hashref for use by the extension C<$family>, which can be
2165modified. After modifications, you have to call C<cf::db_dirty> or
2166C<cf::db_sync>.
2167
2168=item $value = cf::db_get $family => $key 2247=item $value = cf::db_get $family => $key
2169 2248
2170Returns a single value from the database 2249Returns a single value from the database.
2171
2172=item cf::db_put $family => $hashref
2173
2174Stores the given family hashref into the database. Updates are delayed, if
2175you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176 2250
2177=item cf::db_put $family => $key => $value 2251=item cf::db_put $family => $key => $value
2178 2252
2179Stores the given C<$value> in the family hash. Updates are delayed, if you 2253Stores the given C<$value> in the family.
2180want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182=item cf::db_dirty
2183
2184Marks the database as dirty, to be updated at a later time.
2185
2186=item cf::db_sync
2187
2188Immediately write the database to disk I<if it is dirty>.
2189 2254
2190=cut 2255=cut
2191 2256
2192our $DB; 2257our $DB;
2193 2258
2194{ 2259sub db_init {
2260 unless ($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
2195 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;
2196 2278
2197 sub db_load() { 2279 cf::db_put (board => data => $pst->{board});
2198 $DB = stat $path ? Storable::retrieve $path : { }; 2280 cf::db_put (guildrules => data => $pst->{guildrules});
2199 } 2281 cf::db_put (rent => balance => $pst->{rent}{balance});
2282 BDB::db_env_txn_checkpoint $DB_ENV;
2200 2283
2201 my $pid; 2284 unlink $path;
2202
2203 sub db_save() {
2204 waitpid $pid, 0 if $pid;
2205 if (0 == ($pid = fork)) {
2206 $DB->{_meta}{version} = 1;
2207 Storable::nstore $DB, "$path~";
2208 rename "$path~", $path;
2209 cf::_exit 0 if defined $pid;
2210 } 2285 };
2211 }
2212
2213 my $dirty;
2214
2215 sub db_sync() {
2216 db_save if $dirty;
2217 undef $dirty;
2218 }
2219
2220 my $idle = Event->idle (
2221 reentrant => 0,
2222 min => 10,
2223 max => 20,
2224 repeat => 0,
2225 data => WF_AUTOCANCEL,
2226 cb => \&db_sync,
2227 );
2228
2229 sub db_dirty() {
2230 $dirty = 1;
2231 $idle->start;
2232 }
2233
2234 sub db_get($;$) {
2235 @_ >= 2
2236 ? $DB->{$_[0]}{$_[1]}
2237 : ($DB->{$_[0]} ||= { })
2238 }
2239
2240 sub db_put($$;$) {
2241 if (@_ >= 3) {
2242 $DB->{$_[0]}{$_[1]} = $_[2];
2243 } else {
2244 $DB->{$_[0]} = $_[1];
2245 }
2246 db_dirty;
2247 }
2248
2249 cf::global->attach (
2250 prio => 10000,
2251 on_cleanup => sub {
2252 db_sync;
2253 }, 2286 }
2254 ); 2287 }
2288}
2289
2290sub db_get($$) {
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 { };
2255} 2304}
2256 2305
2257############################################################################# 2306#############################################################################
2258# 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}
2259 2371
2260sub cfg_load { 2372sub cfg_load {
2261 open my $fh, "<:utf8", cf::confdir . "/config" 2373 open my $fh, "<:utf8", cf::confdir . "/config"
2262 or return; 2374 or return;
2263 2375
… …
2286 Event::one_event; 2398 Event::one_event;
2287 })->prio (Coro::PRIO_MAX); 2399 })->prio (Coro::PRIO_MAX);
2288 }; 2400 };
2289 2401
2290 cfg_load; 2402 cfg_load;
2291 db_load; 2403 db_init;
2292 load_extensions; 2404 load_extensions;
2293 2405
2294 $TICK_WATCHER->start; 2406 $TICK_WATCHER->start;
2295 Event::loop; 2407 Event::loop;
2296} 2408}
… …
2335 my $map = $cf::MAP{$path} or next; 2447 my $map = $cf::MAP{$path} or next;
2336 $map->valid or next; 2448 $map->valid or next;
2337 $map->save; 2449 $map->save;
2338 } 2450 }
2339 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 $DB_ENV;
2455 warn "end emergency database checkpoint\n";
2340 }; 2456 };
2341 2457
2342 warn "leave emergency perl save\n"; 2458 warn "leave emergency perl save\n";
2459}
2460
2461sub post_cleanup {
2462 my ($make_core) = @_;
2463
2464 warn Carp::longmess "post_cleanup backtrace"
2465 if $make_core;
2343} 2466}
2344 2467
2345sub reload() { 2468sub reload() {
2346 # can/must only be called in main 2469 # can/must only be called in main
2347 if ($Coro::current != $Coro::main) { 2470 if ($Coro::current != $Coro::main) {
… …
2349 return; 2472 return;
2350 } 2473 }
2351 2474
2352 warn "reloading..."; 2475 warn "reloading...";
2353 2476
2354 warn "cancelling server ticker"; 2477 warn "entering sync_job";
2355 $TICK_WATCHER->cancel;
2356 2478
2479 cf::sync_job {
2480 cf::write_runtime; # external watchdog should not bark
2357 cf::emergency_save; 2481 cf::emergency_save;
2482 cf::write_runtime; # external watchdog should not bark
2358 2483
2359 eval { 2484 warn "syncing database to disk";
2485 BDB::db_env_txn_checkpoint $DB_ENV;
2486
2360 # 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
2361
2362 warn "syncing database to disk";
2363 cf::db_sync;
2364 2488
2365 warn "cancelling all WF_AUTOCANCEL watchers"; 2489 warn "cancelling all WF_AUTOCANCEL watchers";
2366 for (Event::all_watchers) { 2490 for (Event::all_watchers) {
2367 $_->cancel if $_->data & WF_AUTOCANCEL; 2491 $_->cancel if $_->data & WF_AUTOCANCEL;
2368 } 2492 }
2369 2493
2370 warn "flushing outstanding aio requests"; 2494 warn "flushing outstanding aio requests";
2371 for (;;) { 2495 for (;;) {
2496 BDB::flush;
2372 IO::AIO::flush; 2497 IO::AIO::flush;
2373 Coro::cede; 2498 Coro::cede;
2374 last unless IO::AIO::nreqs; 2499 last unless IO::AIO::nreqs || BDB::nreqs;
2375 warn "iterate..."; 2500 warn "iterate...";
2376 } 2501 }
2502
2503 ++$RELOAD;
2377 2504
2378 warn "cancelling all extension coros"; 2505 warn "cancelling all extension coros";
2379 $_->cancel for values %EXT_CORO; 2506 $_->cancel for values %EXT_CORO;
2380 %EXT_CORO = (); 2507 %EXT_CORO = ();
2381 2508
… …
2434 require cf; 2561 require cf;
2435 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2562 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436 2563
2437 warn "loading config and database again"; 2564 warn "loading config and database again";
2438 cf::cfg_load; 2565 cf::cfg_load;
2439 cf::db_load;
2440 2566
2441 warn "loading extensions"; 2567 warn "loading extensions";
2442 cf::load_extensions; 2568 cf::load_extensions;
2443 2569
2444 warn "reattaching attachments to objects/players"; 2570 warn "reattaching attachments to objects/players";
2445 _global_reattach; 2571 _global_reattach; # objects, sockets
2446 warn "reattaching attachments to maps"; 2572 warn "reattaching attachments to maps";
2447 reattach $_ for values %MAP; 2573 reattach $_ for values %MAP;
2574 warn "reattaching attachments to players";
2575 reattach $_ for values %PLAYER;
2448 2576
2449 warn "restarting server ticker"; 2577 warn "loading reloadable resources";
2578 reload_resources;
2450 2579
2451 $TICK_WATCHER->start; 2580 warn "leaving sync_job";
2452 };
2453 2581
2454 if ($@) { 2582 1
2583 } or do {
2455 warn $@; 2584 warn $@;
2456 warn "error while reloading, exiting."; 2585 warn "error while reloading, exiting.";
2457 exit 1; 2586 exit 1;
2458 } 2587 };
2459 2588
2460 warn "reloaded"; 2589 warn "reloaded";
2461}; 2590};
2462 2591
2463our $RELOAD_WATCHER; # used only during reload 2592our $RELOAD_WATCHER; # used only during reload
… …
2504 2633
2505 cf::server_tick; # one server iteration 2634 cf::server_tick; # one server iteration
2506 $RUNTIME += $TICK; 2635 $RUNTIME += $TICK;
2507 $NEXT_TICK += $TICK; 2636 $NEXT_TICK += $TICK;
2508 2637
2638 if ($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
2509 $WAIT_FOR_TICK->broadcast; 2646 $WAIT_FOR_TICK->broadcast;
2510 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2647 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2511 2648
2512 Event::sweep;
2513 Coro::cede_notself;
2514
2515# my $AFTER = Event::time; 2649# my $AFTER = Event::time;
2516# warn $AFTER - $NOW;#d# 2650# warn $AFTER - $NOW;#d#
2517 2651
2518 # 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
2519 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2653 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2521 $TICK_WATCHER->at ($NEXT_TICK); 2655 $TICK_WATCHER->at ($NEXT_TICK);
2522 $TICK_WATCHER->start; 2656 $TICK_WATCHER->start;
2523 }, 2657 },
2524); 2658);
2525 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;
2526IO::AIO::max_poll_time $TICK * 0.1; 2714 IO::AIO::max_poll_time $TICK * 0.1;
2527
2528undef $Coro::AIO::WATCHER;
2529$AIO_POLL_WATCHER = Event->io ( 2715 $AIO_POLL_WATCHER = Event->io (
2530 reentrant => 0, 2716 reentrant => 0,
2717 data => WF_AUTOCANCEL,
2531 fd => IO::AIO::poll_fileno, 2718 fd => IO::AIO::poll_fileno,
2532 poll => 'r', 2719 poll => 'r',
2533 prio => 6, 2720 prio => 6,
2534 data => WF_AUTOCANCEL,
2535 cb => \&IO::AIO::poll_cb, 2721 cb => \&IO::AIO::poll_cb,
2536); 2722 );
2537 2723}
2538$WRITE_RUNTIME_WATCHER = Event->timer (
2539 reentrant => 0,
2540 data => WF_AUTOCANCEL,
2541 after => 1,
2542 interval => 10,
2543 prio => 6, # keep it lowest so it acts like a watchdog
2544 cb => Coro::unblock_sub {
2545 write_runtime
2546 or warn "ERROR: unable to write runtime file: $!";
2547 },
2548);
2549 2724
2550END { cf::emergency_save } 2725END { cf::emergency_save }
2551 2726
25521 27271
2553 2728

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