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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.233 by root, Wed Apr 4 02:20:27 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;
19 21
22use BDB ();
20use Data::Dumper; 23use Data::Dumper;
21use Digest::MD5; 24use Digest::MD5;
22use Fcntl; 25use Fcntl;
26use YAML::Syck ();
23use IO::AIO 2.32 (); 27use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
26 30
31# configure various modules to our taste
32#
33Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 36$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 37
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 38# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 39$YAML::Syck::ImplicitUnicode = 1;
33 40
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 41$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42
43sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 44
36our %COMMAND = (); 45our %COMMAND = ();
37our %COMMAND_TIME = (); 46our %COMMAND_TIME = ();
38 47
39our @EXTS = (); # list of extension package names 48our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 49our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 50our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 51our %EXT_MAP = (); # pluggable maps
43 52
53our $RELOAD; # number of reloads so far
44our @EVENT; 54our @EVENT;
45our $LIBDIR = datadir . "/ext"; 55our $LIBDIR = datadir . "/ext";
46 56
47our $TICK = MAX_TIME * 1e-6; 57our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 58our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 59our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 60our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 61our $NEXT_TICK;
52our $NOW; 62our $NOW;
63our $USE_FSYNC = 1; # use fsync to write maps - default off
64
65our $BDB_POLL_WATCHER;
66our $DB_ENV;
53 67
54our %CFG; 68our %CFG;
55 69
56our $UPTIME; $UPTIME ||= time; 70our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 71our $RUNTIME;
58 72
59our %PLAYER; # all users 73our %PLAYER; # all users
60our %MAP; # all maps 74our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 75our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 76our $RANDOM_MAPS = cf::localdir . "/random";
77our $BDB_ENV_DIR = cf::localdir . "/db";
63 78
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 79our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 80our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 81
67# used to convert map paths into valid unix filenames by replacing / by ∕ 82# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 95mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 96mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 97mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 98mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 99mkdir $RANDOM_MAPS;
100mkdir $BDB_ENV_DIR;
85 101
86our $EMERGENCY_POSITION; 102our $EMERGENCY_POSITION;
103
104sub cf::map::normalise;
87 105
88############################################################################# 106#############################################################################
89 107
90=head2 GLOBAL VARIABLES 108=head2 GLOBAL VARIABLES
91 109
… …
190 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 208 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191 $d 209 $d
192 } || "[unable to dump $_[0]: '$@']"; 210 } || "[unable to dump $_[0]: '$@']";
193} 211}
194 212
195use JSON::Syck (); # TODO# replace by JSON::PC once working 213use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196 214
197=item $ref = cf::from_json $json 215=item $ref = cf::from_json $json
198 216
199Converts a JSON string into the corresponding perl data structure. 217Converts a JSON string into the corresponding perl data structure.
200 218
201=cut
202
203sub from_json($) {
204 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205 JSON::Syck::Load $_[0]
206}
207
208=item $json = cf::to_json $ref 219=item $json = cf::to_json $ref
209 220
210Converts a perl data structure into its JSON representation. 221Converts a perl data structure into its JSON representation.
211
212=cut
213
214sub to_json($) {
215 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216 JSON::Syck::Dump $_[0]
217}
218 222
219=item cf::lock_wait $string 223=item cf::lock_wait $string
220 224
221Wait until the given lock is available. See cf::lock_acquire. 225Wait until the given lock is available. See cf::lock_acquire.
222 226
… …
261sub freeze_mainloop { 265sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 266 return unless $TICK_WATCHER->is_active;
263 267
264 my $guard = Coro::guard { 268 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 269 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 270 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 271 $TICK_WATCHER->stop;
270 $guard 272 $guard
271} 273}
272 274
273=item cf::async { BLOCK } 275=item cf::async { BLOCK }
… …
344 346
345 $coro 347 $coro
346} 348}
347 349
348sub write_runtime { 350sub write_runtime {
351 my $guard = cf::lock_acquire "write_runtime";
352
349 my $runtime = cf::localdir . "/runtime"; 353 my $runtime = cf::localdir . "/runtime";
350 354
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 355 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 356 or return;
353 357
… …
356 # 60 allows for the watchdog to kill the server. 360 # 60 allows for the watchdog to kill the server.
357 361
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 362 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 363 and return;
360 364
365 # always fsync - this file is important
361 aio_fsync $fh 366 aio_fsync $fh
362 and return; 367 and return;
363 368
364 close $fh 369 close $fh
365 or return; 370 or return;
366 371
367 aio_rename "$runtime~", $runtime 372 aio_rename "$runtime~", $runtime
368 and return; 373 and return;
369 374
370 1 375 1
376}
377
378=item cf::datalog type => key => value, ...
379
380Log a datalog packet of the given type with the given key-value pairs.
381
382=cut
383
384sub datalog($@) {
385 my ($type, %kv) = @_;
386 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371} 387}
372 388
373=back 389=back
374 390
375=cut 391=cut
… …
750 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
751 767
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 772 close $fh;
757 773
758 if (@$objs) { 774 if (@$objs) {
759 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 780 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
766 } 782 }
767 } else { 783 } else {
768 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
… …
1017=cut 1033=cut
1018 1034
1019sub quit_character { 1035sub quit_character {
1020 my ($pl) = @_; 1036 my ($pl) = @_;
1021 1037
1038 my $name = $pl->ob->name;
1039
1022 $pl->{deny_save} = 1; 1040 $pl->{deny_save} = 1;
1023 $pl->password ("*"); # this should lock out the player until we nuked the dir 1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1024 1042
1025 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026 $pl->deactivate; 1044 $pl->deactivate;
… …
1030 my $path = playerdir $pl; 1048 my $path = playerdir $pl;
1031 my $temp = "$path~$cf::RUNTIME~deleting~"; 1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1032 aio_rename $path, $temp; 1050 aio_rename $path, $temp;
1033 delete $cf::PLAYER{$pl->ob->name}; 1051 delete $cf::PLAYER{$pl->ob->name};
1034 $pl->destroy; 1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1035 IO::AIO::aio_rmtree $temp; 1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1036} 1074}
1037 1075
1038=item cf::player::list_logins 1076=item cf::player::list_logins
1039 1077
1040Returns am arrayref of all valid playernames in the system, can take a 1078Returns am arrayref of all valid playernames in the system, can take a
… …
1068=cut 1106=cut
1069 1107
1070sub maps($) { 1108sub maps($) {
1071 my ($pl) = @_; 1109 my ($pl) = @_;
1072 1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1073 my $files = aio_readdir playerdir $pl 1113 my $files = aio_readdir playerdir $pl
1074 or return; 1114 or return;
1075 1115
1076 my @paths; 1116 my @paths;
1077 1117
1078 for (@$files) { 1118 for (@$files) {
1079 utf8::decode $_; 1119 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1120 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1121 next unless /^$PATH_SEP/o;
1082 1122
1083 s/\.map$//; 1123 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1124 }
1086 1125
1087 \@paths 1126 \@paths
1088} 1127}
1089 1128
1090=item $player->ext_reply ($msgid, $msgtype, %msg) 1129=item $player->ext_reply ($msgid, %msg)
1091 1130
1092Sends an ext reply to the player. 1131Sends an ext reply to the player.
1093 1132
1094=cut 1133=cut
1095 1134
1096sub ext_reply($$$%) { 1135sub ext_reply($$%) {
1097 my ($self, $id, %msg) = @_; 1136 my ($self, $id, %msg) = @_;
1098 1137
1099 $msg{msgid} = $id; 1138 $msg{msgid} = $id;
1100 1139
1101 $self->send ("ext " . cf::to_json \%msg); 1140 $self->send ("ext " . cf::to_json \%msg);
1141}
1142
1143=item $player->ext_event ($type, %msg)
1144
1145Sends an ext event to the client.
1146
1147=cut
1148
1149sub ext_event($$%) {
1150 my ($self, $type, %msg) = @_;
1151
1152 $self->ns->ext_event ($type, %msg);
1102} 1153}
1103 1154
1104package cf; 1155package cf;
1105 1156
1106=back 1157=back
… …
1178sub normalise { 1229sub normalise {
1179 my ($path, $base) = @_; 1230 my ($path, $base) = @_;
1180 1231
1181 $path = "$path"; # make sure its a string 1232 $path = "$path"; # make sure its a string
1182 1233
1234 $path =~ s/\.map$//;
1235
1183 # map plan: 1236 # map plan:
1184 # 1237 #
1185 # /! non-realised random map exit (special hack!) 1238 # /! non-realised random map exit (special hack!)
1186 # {... are special paths that are not being touched 1239 # {... are special paths that are not being touched
1187 # ?xxx/... are special absolute paths 1240 # ?xxx/... are special absolute paths
… …
1248 1301
1249# the original (read-only) location 1302# the original (read-only) location
1250sub load_path { 1303sub load_path {
1251 my ($self) = @_; 1304 my ($self) = @_;
1252 1305
1253 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1306 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1254} 1307}
1255 1308
1256# the temporary/swap location 1309# the temporary/swap location
1257sub save_path { 1310sub save_path {
1258 my ($self) = @_; 1311 my ($self) = @_;
1259 1312
1260 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1313 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1314 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1262} 1315}
1263 1316
1264# the unique path, undef == no special unique path 1317# the unique path, undef == no special unique path
1265sub uniq_path { 1318sub uniq_path {
1266 my ($self) = @_; 1319 my ($self) = @_;
… …
1288 1341
1289sub load_header_from($) { 1342sub load_header_from($) {
1290 my ($self, $path) = @_; 1343 my ($self, $path) = @_;
1291 1344
1292 utf8::encode $path; 1345 utf8::encode $path;
1293 aio_open $path, O_RDONLY, 0 1346 #aio_open $path, O_RDONLY, 0
1294 or return; 1347 # or return;
1295 1348
1296 $self->_load_header ($path) 1349 $self->_load_header ($path)
1297 or return; 1350 or return;
1298 1351
1299 $self->{load_path} = $path; 1352 $self->{load_path} = $path;
… …
1579 return if $self->players; 1632 return if $self->players;
1580 return if $self->isa ("ext::map_per_player");#d# 1633 return if $self->isa ("ext::map_per_player");#d#
1581 1634
1582 warn "resetting map ", $self->path;#d# 1635 warn "resetting map ", $self->path;#d#
1583 1636
1637 $self->in_memory (cf::MAP_SWAPPED);
1638
1639 # need to save uniques path
1640 unless ($self->{deny_save}) {
1641 my $uniq = $self->uniq_path; utf8::encode $uniq;
1642
1643 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1644 if $uniq;
1645 }
1646
1584 delete $cf::MAP{$self->path}; 1647 delete $cf::MAP{$self->path};
1585 1648
1586 $self->in_memory (cf::MAP_SWAPPED);
1587 $self->clear; 1649 $self->clear;
1588 1650
1589 $_->clear_links_to ($self) for values %cf::MAP; 1651 $_->clear_links_to ($self) for values %cf::MAP;
1590 1652
1591 $self->unlink_save; 1653 $self->unlink_save;
… …
1628 for (@$files) { 1690 for (@$files) {
1629 utf8::decode $_; 1691 utf8::decode $_;
1630 next if /\.pst$/; 1692 next if /\.pst$/;
1631 next unless /^$PATH_SEP/o; 1693 next unless /^$PATH_SEP/o;
1632 1694
1633 s/\.map$//; 1695 push @paths, cf::map::normalise $_;
1634 push @paths, $_;
1635 } 1696 }
1636 1697
1637 \@paths 1698 \@paths
1638} 1699}
1639 1700
… …
1782 $map->load; 1843 $map->load;
1783 $map->load_diag; 1844 $map->load_diag;
1784 1845
1785 return unless $self->contr->active; 1846 return unless $self->contr->active;
1786 $self->activate_recursive; 1847 $self->activate_recursive;
1848
1849 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787 $self->enter_map ($map, $x, $y); 1850 $self->enter_map ($map, $x, $y);
1788} 1851}
1789 1852
1790cf::player->attach ( 1853cf::player->attach (
1791 on_logout => sub { 1854 on_logout => sub {
… …
1804 # try to abort aborted map switching on player login :) 1867 # try to abort aborted map switching on player login :)
1805 # should happen only on crashes 1868 # should happen only on crashes
1806 if ($pl->ob->{_link_pos}) { 1869 if ($pl->ob->{_link_pos}) {
1807 $pl->ob->enter_link; 1870 $pl->ob->enter_link;
1808 (async { 1871 (async {
1809 # we need this sleep as the login has a concurrent enter_exit running
1810 # and this sleep increases chances of the player not ending up in scorn
1811 $pl->ob->reply (undef, 1872 $pl->ob->reply (undef,
1812 "There was an internal problem at your last logout, " 1873 "There was an internal problem at your last logout, "
1813 . "the server will try to bring you to your intended destination in a second.", 1874 . "the server will try to bring you to your intended destination in a second.",
1814 cf::NDI_RED); 1875 cf::NDI_RED);
1876 # we need this sleep as the login has a concurrent enter_exit running
1877 # and this sleep increases chances of the player not ending up in scorn
1815 Coro::Timer::sleep 1; 1878 Coro::Timer::sleep 1;
1816 $pl->ob->leave_link; 1879 $pl->ob->leave_link;
1817 })->prio (2); 1880 })->prio (2);
1818 } 1881 }
1819 }, 1882 },
… …
1902 1965
1903 return unless $self->type == cf::PLAYER; 1966 return unless $self->type == cf::PLAYER;
1904 1967
1905 if ($exit->slaying eq "/!") { 1968 if ($exit->slaying eq "/!") {
1906 #TODO: this should de-fi-ni-te-ly not be a sync-job 1969 #TODO: this should de-fi-ni-te-ly not be a sync-job
1970 # the problem is that $exit might not survive long enough
1971 # so it needs to be done right now, right here
1907 cf::sync_job { prepare_random_map $exit }; 1972 cf::sync_job { prepare_random_map $exit };
1908 } 1973 }
1909 1974
1910 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 1975 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911 my $hp = $exit->stats->hp; 1976 my $hp = $exit->stats->hp;
… …
1919 $self->goto ($slaying, $hp, $sp); 1984 $self->goto ($slaying, $hp, $sp);
1920 1985
1921 1; 1986 1;
1922 }) { 1987 }) {
1923 $self->message ("Something went wrong deep within the crossfire server. " 1988 $self->message ("Something went wrong deep within the crossfire server. "
1924 . "I'll try to bring you back to the map you were before. " 1989 . "I'll try to bring you back to the map you were before. "
1925 . "Please report this to the dungeon master!", 1990 . "Please report this to the dungeon master!",
1926 cf::NDI_UNIQUE | cf::NDI_RED); 1991 cf::NDI_UNIQUE | cf::NDI_RED);
1927 1992
1928 warn "ERROR in enter_exit: $@"; 1993 warn "ERROR in enter_exit: $@";
1929 $self->leave_link; 1994 $self->leave_link;
1930 } 1995 }
1931 })->prio (1); 1996 })->prio (1);
… …
1944 2009
1945sub cf::client::send_drawinfo { 2010sub cf::client::send_drawinfo {
1946 my ($self, $text, $flags) = @_; 2011 my ($self, $text, $flags) = @_;
1947 2012
1948 utf8::encode $text; 2013 utf8::encode $text;
1949 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2014 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950} 2015}
1951 2016
2017=item $client->ext_event ($type, %msg)
2018
2019Sends an exti event to the client.
2020
2021=cut
2022
2023sub cf::client::ext_event($$%) {
2024 my ($self, $type, %msg) = @_;
2025
2026 $msg{msgtype} = "event_$type";
2027 $self->send_packet ("ext " . cf::to_json \%msg);
2028}
1952 2029
1953=item $success = $client->query ($flags, "text", \&cb) 2030=item $success = $client->query ($flags, "text", \&cb)
1954 2031
1955Queues a query to the client, calling the given callback with 2032Queues a query to the client, calling the given callback with
1956the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2033the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
… …
1985 # get handled first 2062 # get handled first
1986 my $queue = delete $ns->{query_queue} 2063 my $queue = delete $ns->{query_queue}
1987 or return; # be conservative, not sure how that can happen, but we saw a crash here 2064 or return; # be conservative, not sure how that can happen, but we saw a crash here
1988 2065
1989 (shift @$queue)->[1]->($msg); 2066 (shift @$queue)->[1]->($msg);
2067 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990 2068
1991 push @{ $ns->{query_queue} }, @$queue; 2069 push @{ $ns->{query_queue} }, @$queue;
1992 2070
1993 if (@{ $ns->{query_queue} } == @$queue) { 2071 if (@{ $ns->{query_queue} } == @$queue) {
1994 if (@$queue) { 2072 if (@$queue) {
… …
2052 2130
2053# here we export the classes and methods available to script code 2131# here we export the classes and methods available to script code
2054 2132
2055=pod 2133=pod
2056 2134
2057The following fucntions and emthods are available within a safe environment: 2135The following functions and methods are available within a safe environment:
2058 2136
2059 cf::object contr pay_amount pay_player map 2137 cf::object contr pay_amount pay_player map
2060 cf::object::player player 2138 cf::object::player player
2061 cf::player peaceful 2139 cf::player peaceful
2062 cf::map trigger 2140 cf::map trigger
… …
2155The parameter C<$family> should best start with the name of the extension 2233The parameter C<$family> should best start with the name of the extension
2156using it, it should be unique. 2234using it, it should be unique.
2157 2235
2158=over 4 2236=over 4
2159 2237
2160=item $hashref = cf::db_get $family
2161
2162Return a hashref for use by the extension C<$family>, which can be
2163modified. After modifications, you have to call C<cf::db_dirty> or
2164C<cf::db_sync>.
2165
2166=item $value = cf::db_get $family => $key 2238=item $value = cf::db_get $family => $key
2167 2239
2168Returns a single value from the database 2240Returns a single value from the database.
2169
2170=item cf::db_put $family => $hashref
2171
2172Stores the given family hashref into the database. Updates are delayed, if
2173you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174 2241
2175=item cf::db_put $family => $key => $value 2242=item cf::db_put $family => $key => $value
2176 2243
2177Stores the given C<$value> in the family hash. Updates are delayed, if you 2244Stores the given C<$value> in the family.
2178want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180=item cf::db_dirty
2181
2182Marks the database as dirty, to be updated at a later time.
2183
2184=item cf::db_sync
2185
2186Immediately write the database to disk I<if it is dirty>.
2187 2245
2188=cut 2246=cut
2189 2247
2190our $DB; 2248our $DB;
2191 2249
2192{ 2250sub db_init {
2251 unless ($DB) {
2252 $DB = BDB::db_create $DB_ENV;
2253
2254 cf::sync_job {
2255 eval {
2256 $DB->set_flags (BDB::CHKSUM);
2257
2258 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2259 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2260 cf::cleanup "db_open(db): $!" if $!;
2261 };
2262 cf::cleanup "db_open(db): $@" if $@;
2263 };
2264
2193 my $path = cf::localdir . "/database.pst"; 2265 my $path = cf::localdir . "/database.pst";
2266 if (stat $path) {
2267 cf::sync_job {
2268 my $pst = Storable::retrieve $path;
2194 2269
2195 sub db_load() { 2270 cf::db_put (board => data => $pst->{board});
2196 $DB = stat $path ? Storable::retrieve $path : { }; 2271 cf::db_put (guildrules => data => $pst->{guildrules});
2197 } 2272 cf::db_put (rent => balance => $pst->{rent}{balance});
2273 BDB::db_env_txn_checkpoint $DB_ENV;
2198 2274
2199 my $pid; 2275 unlink $path;
2200
2201 sub db_save() {
2202 waitpid $pid, 0 if $pid;
2203 if (0 == ($pid = fork)) {
2204 $DB->{_meta}{version} = 1;
2205 Storable::nstore $DB, "$path~";
2206 rename "$path~", $path;
2207 cf::_exit 0 if defined $pid;
2208 } 2276 };
2277 }
2209 } 2278 }
2279}
2210 2280
2211 my $dirty;
2212
2213 sub db_sync() {
2214 db_save if $dirty;
2215 undef $dirty;
2216 }
2217
2218 my $idle = Event->idle (
2219 reentrant => 0,
2220 min => 10,
2221 max => 20,
2222 repeat => 0,
2223 data => WF_AUTOCANCEL,
2224 cb => \&db_sync,
2225 );
2226
2227 sub db_dirty() {
2228 $dirty = 1;
2229 $idle->start;
2230 }
2231
2232 sub db_get($;$) { 2281sub db_get($$) {
2233 @_ >= 2 2282 my $key = "$_[0]/$_[1]";
2234 ? $DB->{$_[0]}{$_[1]}
2235 : ($DB->{$_[0]} ||= { })
2236 }
2237 2283
2284 cf::sync_job {
2285 BDB::db_get $DB, undef, $key, my $data;
2286
2287 $! ? ()
2288 : Compress::LZF::sthaw $data
2289 }
2290}
2291
2238 sub db_put($$;$) { 2292sub db_put($$$) {
2239 if (@_ >= 3) { 2293 BDB::dbreq_pri 4;
2240 $DB->{$_[0]}{$_[1]} = $_[2]; 2294 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2295}
2296
2297#############################################################################
2298# the server's init and main functions
2299
2300sub load_facedata {
2301 my $path = sprintf "%s/facedata", cf::datadir;
2302
2303 warn "loading facedata from $path\n";
2304
2305 my $faces;
2306 0 < aio_load $path, $faces
2307 or die "$path: $!";
2308
2309 Coro::cede;
2310 $faces = Storable::thaw $faces;
2311 Coro::cede;
2312
2313 my $meta = delete $faces->{""};
2314 $meta->{version} == 1
2315 or cf::cleanup "$path: version mismatch, cannot proceed.";
2316
2317 while (my ($face, $info) = each %$faces) {
2318 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2319 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2320 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2321 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2322 Coro::cede;
2323 }
2324
2325 while (my ($face, $info) = each %$faces) {
2326 next unless $info->{smooth};
2327 my $idx = cf::face::find $face
2328 or next;
2329 if (my $smooth = cf::face::find $info->{smooth}) {
2330 cf::face::set_smooth $idx, $smooth;
2241 } else { 2331 } else {
2242 $DB->{$_[0]} = $_[1]; 2332 warn "smooth face '$info->{smooth}' not found for face '$face'";
2243 }
2244 db_dirty;
2245 }
2246
2247 cf::global->attach (
2248 prio => 10000,
2249 on_cleanup => sub {
2250 db_sync;
2251 }, 2333 }
2252 ); 2334 Coro::cede;
2253} 2335 }
2254 2336
2255############################################################################# 2337 1
2256# the server's main() 2338}
2339
2340sub reload_resources {
2341 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2342 or die "unable to load regions file\n";#d#
2343 load_facedata
2344 or die "unable to load facedata\n";#d#
2345}
2346
2347sub init {
2348 reload_resources;
2349}
2257 2350
2258sub cfg_load { 2351sub cfg_load {
2259 open my $fh, "<:utf8", cf::confdir . "/config" 2352 open my $fh, "<:utf8", cf::confdir . "/config"
2260 or return; 2353 or return;
2261 2354
… …
2284 Event::one_event; 2377 Event::one_event;
2285 })->prio (Coro::PRIO_MAX); 2378 })->prio (Coro::PRIO_MAX);
2286 }; 2379 };
2287 2380
2288 cfg_load; 2381 cfg_load;
2289 db_load; 2382 db_init;
2290 load_extensions; 2383 load_extensions;
2291 2384
2292 $TICK_WATCHER->start; 2385 $TICK_WATCHER->start;
2293 Event::loop; 2386 Event::loop;
2294} 2387}
… …
2333 my $map = $cf::MAP{$path} or next; 2426 my $map = $cf::MAP{$path} or next;
2334 $map->valid or next; 2427 $map->valid or next;
2335 $map->save; 2428 $map->save;
2336 } 2429 }
2337 warn "end emergency map save\n"; 2430 warn "end emergency map save\n";
2431
2432 warn "begin emergency database checkpoint\n";
2433 BDB::db_env_txn_checkpoint $DB_ENV;
2434 warn "end emergency database checkpoint\n";
2338 }; 2435 };
2339 2436
2340 warn "leave emergency perl save\n"; 2437 warn "leave emergency perl save\n";
2438}
2439
2440sub post_cleanup {
2441 my ($make_core) = @_;
2442
2443 warn Carp::longmess "post_cleanup backtrace"
2444 if $make_core;
2341} 2445}
2342 2446
2343sub reload() { 2447sub reload() {
2344 # can/must only be called in main 2448 # can/must only be called in main
2345 if ($Coro::current != $Coro::main) { 2449 if ($Coro::current != $Coro::main) {
… …
2347 return; 2451 return;
2348 } 2452 }
2349 2453
2350 warn "reloading..."; 2454 warn "reloading...";
2351 2455
2352 warn "cancelling server ticker"; 2456 warn "entering sync_job";
2353 $TICK_WATCHER->cancel;
2354 2457
2458 cf::sync_job {
2459 cf::write_runtime; # external watchdog should not bark
2355 cf::emergency_save; 2460 cf::emergency_save;
2461 cf::write_runtime; # external watchdog should not bark
2356 2462
2357 eval { 2463 warn "syncing database to disk";
2464 BDB::db_env_txn_checkpoint $DB_ENV;
2465
2358 # if anything goes wrong in here, we should simply crash as we already saved 2466 # if anything goes wrong in here, we should simply crash as we already saved
2359
2360 warn "syncing database to disk";
2361 cf::db_sync;
2362 2467
2363 warn "cancelling all WF_AUTOCANCEL watchers"; 2468 warn "cancelling all WF_AUTOCANCEL watchers";
2364 for (Event::all_watchers) { 2469 for (Event::all_watchers) {
2365 $_->cancel if $_->data & WF_AUTOCANCEL; 2470 $_->cancel if $_->data & WF_AUTOCANCEL;
2366 } 2471 }
2367 2472
2368 warn "flushing outstanding aio requests"; 2473 warn "flushing outstanding aio requests";
2369 for (;;) { 2474 for (;;) {
2475 BDB::flush;
2370 IO::AIO::flush; 2476 IO::AIO::flush;
2371 Coro::cede; 2477 Coro::cede;
2372 last unless IO::AIO::nreqs; 2478 last unless IO::AIO::nreqs || BDB::nreqs;
2373 warn "iterate..."; 2479 warn "iterate...";
2374 } 2480 }
2481
2482 ++$RELOAD;
2375 2483
2376 warn "cancelling all extension coros"; 2484 warn "cancelling all extension coros";
2377 $_->cancel for values %EXT_CORO; 2485 $_->cancel for values %EXT_CORO;
2378 %EXT_CORO = (); 2486 %EXT_CORO = ();
2379 2487
… …
2432 require cf; 2540 require cf;
2433 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2541 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434 2542
2435 warn "loading config and database again"; 2543 warn "loading config and database again";
2436 cf::cfg_load; 2544 cf::cfg_load;
2437 cf::db_load;
2438 2545
2439 warn "loading extensions"; 2546 warn "loading extensions";
2440 cf::load_extensions; 2547 cf::load_extensions;
2441 2548
2442 warn "reattaching attachments to objects/players"; 2549 warn "reattaching attachments to objects/players";
2443 _global_reattach; 2550 _global_reattach; # objects, sockets
2444 warn "reattaching attachments to maps"; 2551 warn "reattaching attachments to maps";
2445 reattach $_ for values %MAP; 2552 reattach $_ for values %MAP;
2553 warn "reattaching attachments to players";
2554 reattach $_ for values %PLAYER;
2446 2555
2447 warn "restarting server ticker"; 2556 warn "loading reloadable resources";
2557 reload_resources;
2448 2558
2449 $TICK_WATCHER->start; 2559 warn "leaving sync_job";
2450 };
2451 2560
2452 if ($@) { 2561 1
2562 } or do {
2453 warn $@; 2563 warn $@;
2454 warn "error while reloading, exiting."; 2564 warn "error while reloading, exiting.";
2455 exit 1; 2565 exit 1;
2456 } 2566 };
2457 2567
2458 warn "reloaded"; 2568 warn "reloaded";
2459}; 2569};
2460 2570
2461our $RELOAD_WATCHER; # used only during reload 2571our $RELOAD_WATCHER; # used only during reload
… …
2502 2612
2503 cf::server_tick; # one server iteration 2613 cf::server_tick; # one server iteration
2504 $RUNTIME += $TICK; 2614 $RUNTIME += $TICK;
2505 $NEXT_TICK += $TICK; 2615 $NEXT_TICK += $TICK;
2506 2616
2617 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2618 $NEXT_RUNTIME_WRITE = $NOW + 10;
2619 Coro::async_pool {
2620 write_runtime
2621 or warn "ERROR: unable to write runtime file: $!";
2622 };
2623 }
2624
2507 $WAIT_FOR_TICK->broadcast; 2625 $WAIT_FOR_TICK->broadcast;
2508 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2626 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2509 2627
2510 Event::sweep;
2511 Coro::cede_notself;
2512
2513# my $AFTER = Event::time; 2628# my $AFTER = Event::time;
2514# warn $AFTER - $NOW;#d# 2629# warn $AFTER - $NOW;#d#
2515 2630
2516 # if we are delayed by four ticks or more, skip them all 2631 # if we are delayed by four ticks or more, skip them all
2517 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2632 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2519 $TICK_WATCHER->at ($NEXT_TICK); 2634 $TICK_WATCHER->at ($NEXT_TICK);
2520 $TICK_WATCHER->start; 2635 $TICK_WATCHER->start;
2521 }, 2636 },
2522); 2637);
2523 2638
2639{
2640 BDB::max_poll_time $TICK * 0.1;
2641 $BDB_POLL_WATCHER = Event->io (
2642 reentrant => 0,
2643 fd => BDB::poll_fileno,
2644 poll => 'r',
2645 prio => 0,
2646 data => WF_AUTOCANCEL,
2647 cb => \&BDB::poll_cb,
2648 );
2649 BDB::min_parallel 8;
2650
2651 BDB::set_sync_prepare {
2652 my $status;
2653 my $current = $Coro::current;
2654 (
2655 sub {
2656 $status = $!;
2657 $current->ready; undef $current;
2658 },
2659 sub {
2660 Coro::schedule while defined $current;
2661 $! = $status;
2662 },
2663 )
2664 };
2665
2666 unless ($DB_ENV) {
2667 $DB_ENV = BDB::db_env_create;
2668
2669 cf::sync_job {
2670 eval {
2671 BDB::db_env_open
2672 $DB_ENV,
2673 $BDB_ENV_DIR,
2674 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2675 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2676 0666;
2677
2678 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2679
2680 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2681 $DB_ENV->set_lk_detect;
2682 };
2683
2684 cf::cleanup "db_env_open(db): $@" if $@;
2685 };
2686 }
2687}
2688
2689{
2690 IO::AIO::min_parallel 8;
2691
2692 undef $Coro::AIO::WATCHER;
2524IO::AIO::max_poll_time $TICK * 0.1; 2693 IO::AIO::max_poll_time $TICK * 0.1;
2525
2526undef $Coro::AIO::WATCHER;
2527$AIO_POLL_WATCHER = Event->io ( 2694 $AIO_POLL_WATCHER = Event->io (
2528 reentrant => 0, 2695 reentrant => 0,
2696 data => WF_AUTOCANCEL,
2529 fd => IO::AIO::poll_fileno, 2697 fd => IO::AIO::poll_fileno,
2530 poll => 'r', 2698 poll => 'r',
2531 prio => 6, 2699 prio => 6,
2532 data => WF_AUTOCANCEL,
2533 cb => \&IO::AIO::poll_cb, 2700 cb => \&IO::AIO::poll_cb,
2534); 2701 );
2535 2702}
2536$WRITE_RUNTIME_WATCHER = Event->timer (
2537 reentrant => 0,
2538 data => WF_AUTOCANCEL,
2539 after => 1,
2540 interval => 10,
2541 prio => 6, # keep it lowest so it acts like a watchdog
2542 cb => Coro::unblock_sub {
2543 write_runtime
2544 or warn "ERROR: unable to write runtime file: $!";
2545 },
2546);
2547 2703
2548END { cf::emergency_save } 2704END { cf::emergency_save }
2549 2705
25501 27061
2551 2707

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