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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.202 by root, Mon Jan 29 20:16:28 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;
87 103
88sub cf::map::normalise; 104sub cf::map::normalise;
89 105
… …
192 $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;
193 $d 209 $d
194 } || "[unable to dump $_[0]: '$@']"; 210 } || "[unable to dump $_[0]: '$@']";
195} 211}
196 212
197use JSON::Syck (); # TODO# replace by JSON::PC once working 213use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
198 214
199=item $ref = cf::from_json $json 215=item $ref = cf::from_json $json
200 216
201Converts a JSON string into the corresponding perl data structure. 217Converts a JSON string into the corresponding perl data structure.
202 218
203=cut
204
205sub from_json($) {
206 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207 JSON::Syck::Load $_[0]
208}
209
210=item $json = cf::to_json $ref 219=item $json = cf::to_json $ref
211 220
212Converts a perl data structure into its JSON representation. 221Converts a perl data structure into its JSON representation.
213
214=cut
215
216sub to_json($) {
217 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218 JSON::Syck::Dump $_[0]
219}
220 222
221=item cf::lock_wait $string 223=item cf::lock_wait $string
222 224
223Wait until the given lock is available. See cf::lock_acquire. 225Wait until the given lock is available. See cf::lock_acquire.
224 226
… …
263sub freeze_mainloop { 265sub freeze_mainloop {
264 return unless $TICK_WATCHER->is_active; 266 return unless $TICK_WATCHER->is_active;
265 267
266 my $guard = Coro::guard { 268 my $guard = Coro::guard {
267 $TICK_WATCHER->start; 269 $TICK_WATCHER->start;
268 $WRITE_RUNTIME_WATCHER->start;
269 }; 270 };
270 $WRITE_RUNTIME_WATCHER->stop;
271 $TICK_WATCHER->stop; 271 $TICK_WATCHER->stop;
272 $guard 272 $guard
273} 273}
274 274
275=item cf::async { BLOCK } 275=item cf::async { BLOCK }
… …
346 346
347 $coro 347 $coro
348} 348}
349 349
350sub write_runtime { 350sub write_runtime {
351 my $guard = cf::lock_acquire "write_runtime";
352
351 my $runtime = cf::localdir . "/runtime"; 353 my $runtime = cf::localdir . "/runtime";
352 354
353 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 355 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354 or return; 356 or return;
355 357
… …
358 # 60 allows for the watchdog to kill the server. 360 # 60 allows for the watchdog to kill the server.
359 361
360 (aio_write $fh, 0, (length $value), $value, 0) <= 0 362 (aio_write $fh, 0, (length $value), $value, 0) <= 0
361 and return; 363 and return;
362 364
365 # always fsync - this file is important
363 aio_fsync $fh 366 aio_fsync $fh
364 and return; 367 and return;
365 368
366 close $fh 369 close $fh
367 or return; 370 or return;
368 371
369 aio_rename "$runtime~", $runtime 372 aio_rename "$runtime~", $runtime
370 and return; 373 and return;
371 374
372 1 375 1
376}
377
378=item cf::datalog type => key => value, ...
379
380Log a datalog packet of the given type with the given key-value pairs.
381
382=cut
383
384sub datalog($@) {
385 my ($type, %kv) = @_;
386 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373} 387}
374 388
375=back 389=back
376 390
377=cut 391=cut
… …
752 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
753 767
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 772 close $fh;
759 773
760 if (@$objs) { 774 if (@$objs) {
761 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) {
762 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 780 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
768 } 782 }
769 } else { 783 } else {
770 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
… …
776 } 790 }
777 } else { 791 } else {
778 aio_unlink $filename; 792 aio_unlink $filename;
779 aio_unlink "$filename.pst"; 793 aio_unlink "$filename.pst";
780 } 794 }
781
782 #d##TODO# nuke non .map-files if exist
783 if ($filename =~ s/\.map$//) {
784 aio_unlink $filename;
785 aio_unlink "$filename.pst";
786 }
787 } 795 }
788} 796}
789 797
790sub object_freezer_as_string { 798sub object_freezer_as_string {
791 my ($rdata, $objs) = @_; 799 my ($rdata, $objs) = @_;
… …
797 805
798sub object_thawer_load { 806sub object_thawer_load {
799 my ($filename) = @_; 807 my ($filename) = @_;
800 808
801 my ($data, $av); 809 my ($data, $av);
802
803 #d#TODO remove .map if file does not exist
804 aio_stat $filename and $filename =~ s/\.map$//;
805 810
806 (aio_load $filename, $data) >= 0 811 (aio_load $filename, $data) >= 0
807 or return; 812 or return;
808 813
809 unless (aio_stat "$filename.pst") { 814 unless (aio_stat "$filename.pst") {
… …
1028=cut 1033=cut
1029 1034
1030sub quit_character { 1035sub quit_character {
1031 my ($pl) = @_; 1036 my ($pl) = @_;
1032 1037
1038 my $name = $pl->ob->name;
1039
1033 $pl->{deny_save} = 1; 1040 $pl->{deny_save} = 1;
1034 $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
1035 1042
1036 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037 $pl->deactivate; 1044 $pl->deactivate;
… …
1041 my $path = playerdir $pl; 1048 my $path = playerdir $pl;
1042 my $temp = "$path~$cf::RUNTIME~deleting~"; 1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1043 aio_rename $path, $temp; 1050 aio_rename $path, $temp;
1044 delete $cf::PLAYER{$pl->ob->name}; 1051 delete $cf::PLAYER{$pl->ob->name};
1045 $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
1046 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;
1047} 1074}
1048 1075
1049=item cf::player::list_logins 1076=item cf::player::list_logins
1050 1077
1051Returns 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
… …
1097 } 1124 }
1098 1125
1099 \@paths 1126 \@paths
1100} 1127}
1101 1128
1102=item $player->ext_reply ($msgid, $msgtype, %msg) 1129=item $player->ext_reply ($msgid, %msg)
1103 1130
1104Sends an ext reply to the player. 1131Sends an ext reply to the player.
1105 1132
1106=cut 1133=cut
1107 1134
1108sub ext_reply($$$%) { 1135sub ext_reply($$%) {
1109 my ($self, $id, %msg) = @_; 1136 my ($self, $id, %msg) = @_;
1110 1137
1111 $msg{msgid} = $id; 1138 $msg{msgid} = $id;
1112 1139
1113 $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);
1114} 1153}
1115 1154
1116package cf; 1155package cf;
1117 1156
1118=back 1157=back
… …
1296 my ($self) = @_; 1335 my ($self) = @_;
1297 1336
1298 utf8::encode (my $save = $self->save_path); 1337 utf8::encode (my $save = $self->save_path);
1299 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1338 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1339 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302 #d#TODO remove .map and also nuke
1303 $save =~ s/\.map// or return;#d#
1304 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306} 1340}
1307 1341
1308sub load_header_from($) { 1342sub load_header_from($) {
1309 my ($self, $path) = @_; 1343 my ($self, $path) = @_;
1310 1344
… …
1598 return if $self->players; 1632 return if $self->players;
1599 return if $self->isa ("ext::map_per_player");#d# 1633 return if $self->isa ("ext::map_per_player");#d#
1600 1634
1601 warn "resetting map ", $self->path;#d# 1635 warn "resetting map ", $self->path;#d#
1602 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
1603 delete $cf::MAP{$self->path}; 1647 delete $cf::MAP{$self->path};
1604 1648
1605 $self->in_memory (cf::MAP_SWAPPED);
1606 $self->clear; 1649 $self->clear;
1607 1650
1608 $_->clear_links_to ($self) for values %cf::MAP; 1651 $_->clear_links_to ($self) for values %cf::MAP;
1609 1652
1610 $self->unlink_save; 1653 $self->unlink_save;
… …
1800 $map->load; 1843 $map->load;
1801 $map->load_diag; 1844 $map->load_diag;
1802 1845
1803 return unless $self->contr->active; 1846 return unless $self->contr->active;
1804 $self->activate_recursive; 1847 $self->activate_recursive;
1848
1849 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1805 $self->enter_map ($map, $x, $y); 1850 $self->enter_map ($map, $x, $y);
1806} 1851}
1807 1852
1808cf::player->attach ( 1853cf::player->attach (
1809 on_logout => sub { 1854 on_logout => sub {
… …
1822 # try to abort aborted map switching on player login :) 1867 # try to abort aborted map switching on player login :)
1823 # should happen only on crashes 1868 # should happen only on crashes
1824 if ($pl->ob->{_link_pos}) { 1869 if ($pl->ob->{_link_pos}) {
1825 $pl->ob->enter_link; 1870 $pl->ob->enter_link;
1826 (async { 1871 (async {
1827 # we need this sleep as the login has a concurrent enter_exit running
1828 # and this sleep increases chances of the player not ending up in scorn
1829 $pl->ob->reply (undef, 1872 $pl->ob->reply (undef,
1830 "There was an internal problem at your last logout, " 1873 "There was an internal problem at your last logout, "
1831 . "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.",
1832 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
1833 Coro::Timer::sleep 1; 1878 Coro::Timer::sleep 1;
1834 $pl->ob->leave_link; 1879 $pl->ob->leave_link;
1835 })->prio (2); 1880 })->prio (2);
1836 } 1881 }
1837 }, 1882 },
… …
1920 1965
1921 return unless $self->type == cf::PLAYER; 1966 return unless $self->type == cf::PLAYER;
1922 1967
1923 if ($exit->slaying eq "/!") { 1968 if ($exit->slaying eq "/!") {
1924 #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
1925 cf::sync_job { prepare_random_map $exit }; 1972 cf::sync_job { prepare_random_map $exit };
1926 } 1973 }
1927 1974
1928 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;
1929 my $hp = $exit->stats->hp; 1976 my $hp = $exit->stats->hp;
… …
1937 $self->goto ($slaying, $hp, $sp); 1984 $self->goto ($slaying, $hp, $sp);
1938 1985
1939 1; 1986 1;
1940 }) { 1987 }) {
1941 $self->message ("Something went wrong deep within the crossfire server. " 1988 $self->message ("Something went wrong deep within the crossfire server. "
1942 . "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. "
1943 . "Please report this to the dungeon master!", 1990 . "Please report this to the dungeon master!",
1944 cf::NDI_UNIQUE | cf::NDI_RED); 1991 cf::NDI_UNIQUE | cf::NDI_RED);
1945 1992
1946 warn "ERROR in enter_exit: $@"; 1993 warn "ERROR in enter_exit: $@";
1947 $self->leave_link; 1994 $self->leave_link;
1948 } 1995 }
1949 })->prio (1); 1996 })->prio (1);
… …
1962 2009
1963sub cf::client::send_drawinfo { 2010sub cf::client::send_drawinfo {
1964 my ($self, $text, $flags) = @_; 2011 my ($self, $text, $flags) = @_;
1965 2012
1966 utf8::encode $text; 2013 utf8::encode $text;
1967 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2014 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968} 2015}
1969 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}
1970 2029
1971=item $success = $client->query ($flags, "text", \&cb) 2030=item $success = $client->query ($flags, "text", \&cb)
1972 2031
1973Queues a query to the client, calling the given callback with 2032Queues a query to the client, calling the given callback with
1974the 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>,
… …
2071 2130
2072# here we export the classes and methods available to script code 2131# here we export the classes and methods available to script code
2073 2132
2074=pod 2133=pod
2075 2134
2076The following fucntions and emthods are available within a safe environment: 2135The following functions and methods are available within a safe environment:
2077 2136
2078 cf::object contr pay_amount pay_player map 2137 cf::object contr pay_amount pay_player map
2079 cf::object::player player 2138 cf::object::player player
2080 cf::player peaceful 2139 cf::player peaceful
2081 cf::map trigger 2140 cf::map trigger
… …
2174The 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
2175using it, it should be unique. 2234using it, it should be unique.
2176 2235
2177=over 4 2236=over 4
2178 2237
2179=item $hashref = cf::db_get $family
2180
2181Return a hashref for use by the extension C<$family>, which can be
2182modified. After modifications, you have to call C<cf::db_dirty> or
2183C<cf::db_sync>.
2184
2185=item $value = cf::db_get $family => $key 2238=item $value = cf::db_get $family => $key
2186 2239
2187Returns a single value from the database 2240Returns a single value from the database.
2188
2189=item cf::db_put $family => $hashref
2190
2191Stores the given family hashref into the database. Updates are delayed, if
2192you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193 2241
2194=item cf::db_put $family => $key => $value 2242=item cf::db_put $family => $key => $value
2195 2243
2196Stores the given C<$value> in the family hash. Updates are delayed, if you 2244Stores the given C<$value> in the family.
2197want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199=item cf::db_dirty
2200
2201Marks the database as dirty, to be updated at a later time.
2202
2203=item cf::db_sync
2204
2205Immediately write the database to disk I<if it is dirty>.
2206 2245
2207=cut 2246=cut
2208 2247
2209our $DB; 2248our $DB;
2210 2249
2211{ 2250sub db_init {
2251 unless ($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
2212 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;
2213 2269
2214 sub db_load() { 2270 cf::db_put (board => data => $pst->{board});
2215 $DB = stat $path ? Storable::retrieve $path : { }; 2271 cf::db_put (guildrules => data => $pst->{guildrules});
2216 } 2272 cf::db_put (rent => balance => $pst->{rent}{balance});
2273 BDB::db_env_txn_checkpoint $DB_ENV;
2217 2274
2218 my $pid; 2275 unlink $path;
2219
2220 sub db_save() {
2221 waitpid $pid, 0 if $pid;
2222 if (0 == ($pid = fork)) {
2223 $DB->{_meta}{version} = 1;
2224 Storable::nstore $DB, "$path~";
2225 rename "$path~", $path;
2226 cf::_exit 0 if defined $pid;
2227 } 2276 };
2277 }
2228 } 2278 }
2279}
2229 2280
2230 my $dirty;
2231
2232 sub db_sync() {
2233 db_save if $dirty;
2234 undef $dirty;
2235 }
2236
2237 my $idle = Event->idle (
2238 reentrant => 0,
2239 min => 10,
2240 max => 20,
2241 repeat => 0,
2242 data => WF_AUTOCANCEL,
2243 cb => \&db_sync,
2244 );
2245
2246 sub db_dirty() {
2247 $dirty = 1;
2248 $idle->start;
2249 }
2250
2251 sub db_get($;$) { 2281sub db_get($$) {
2252 @_ >= 2 2282 my $key = "$_[0]/$_[1]";
2253 ? $DB->{$_[0]}{$_[1]}
2254 : ($DB->{$_[0]} ||= { })
2255 }
2256 2283
2284 cf::sync_job {
2285 BDB::db_get $DB, undef, $key, my $data;
2286
2287 $! ? ()
2288 : Compress::LZF::sthaw $data
2289 }
2290}
2291
2257 sub db_put($$;$) { 2292sub db_put($$$) {
2258 if (@_ >= 3) { 2293 BDB::dbreq_pri 4;
2259 $DB->{$_[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;
2260 } else { 2331 } else {
2261 $DB->{$_[0]} = $_[1]; 2332 warn "smooth face '$info->{smooth}' not found for face '$face'";
2262 }
2263 db_dirty;
2264 }
2265
2266 cf::global->attach (
2267 prio => 10000,
2268 on_cleanup => sub {
2269 db_sync;
2270 }, 2333 }
2271 ); 2334 Coro::cede;
2272} 2335 }
2273 2336
2274############################################################################# 2337 1
2275# 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}
2276 2350
2277sub cfg_load { 2351sub cfg_load {
2278 open my $fh, "<:utf8", cf::confdir . "/config" 2352 open my $fh, "<:utf8", cf::confdir . "/config"
2279 or return; 2353 or return;
2280 2354
… …
2303 Event::one_event; 2377 Event::one_event;
2304 })->prio (Coro::PRIO_MAX); 2378 })->prio (Coro::PRIO_MAX);
2305 }; 2379 };
2306 2380
2307 cfg_load; 2381 cfg_load;
2308 db_load; 2382 db_init;
2309 load_extensions; 2383 load_extensions;
2310 2384
2311 $TICK_WATCHER->start; 2385 $TICK_WATCHER->start;
2312 Event::loop; 2386 Event::loop;
2313} 2387}
… …
2352 my $map = $cf::MAP{$path} or next; 2426 my $map = $cf::MAP{$path} or next;
2353 $map->valid or next; 2427 $map->valid or next;
2354 $map->save; 2428 $map->save;
2355 } 2429 }
2356 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 $DB_ENV;
2434 warn "end emergency database checkpoint\n";
2357 }; 2435 };
2358 2436
2359 warn "leave emergency perl save\n"; 2437 warn "leave emergency perl save\n";
2438}
2439
2440sub post_cleanup {
2441 my ($make_core) = @_;
2442
2443 warn Carp::longmess "post_cleanup backtrace"
2444 if $make_core;
2360} 2445}
2361 2446
2362sub reload() { 2447sub reload() {
2363 # can/must only be called in main 2448 # can/must only be called in main
2364 if ($Coro::current != $Coro::main) { 2449 if ($Coro::current != $Coro::main) {
… …
2366 return; 2451 return;
2367 } 2452 }
2368 2453
2369 warn "reloading..."; 2454 warn "reloading...";
2370 2455
2371 warn "cancelling server ticker"; 2456 warn "entering sync_job";
2372 $TICK_WATCHER->cancel;
2373 2457
2458 cf::sync_job {
2459 cf::write_runtime; # external watchdog should not bark
2374 cf::emergency_save; 2460 cf::emergency_save;
2461 cf::write_runtime; # external watchdog should not bark
2375 2462
2376 eval { 2463 warn "syncing database to disk";
2464 BDB::db_env_txn_checkpoint $DB_ENV;
2465
2377 # 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
2378
2379 warn "syncing database to disk";
2380 cf::db_sync;
2381 2467
2382 warn "cancelling all WF_AUTOCANCEL watchers"; 2468 warn "cancelling all WF_AUTOCANCEL watchers";
2383 for (Event::all_watchers) { 2469 for (Event::all_watchers) {
2384 $_->cancel if $_->data & WF_AUTOCANCEL; 2470 $_->cancel if $_->data & WF_AUTOCANCEL;
2385 } 2471 }
2386 2472
2387 warn "flushing outstanding aio requests"; 2473 warn "flushing outstanding aio requests";
2388 for (;;) { 2474 for (;;) {
2475 BDB::flush;
2389 IO::AIO::flush; 2476 IO::AIO::flush;
2390 Coro::cede; 2477 Coro::cede;
2391 last unless IO::AIO::nreqs; 2478 last unless IO::AIO::nreqs || BDB::nreqs;
2392 warn "iterate..."; 2479 warn "iterate...";
2393 } 2480 }
2481
2482 ++$RELOAD;
2394 2483
2395 warn "cancelling all extension coros"; 2484 warn "cancelling all extension coros";
2396 $_->cancel for values %EXT_CORO; 2485 $_->cancel for values %EXT_CORO;
2397 %EXT_CORO = (); 2486 %EXT_CORO = ();
2398 2487
… …
2451 require cf; 2540 require cf;
2452 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2541 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2453 2542
2454 warn "loading config and database again"; 2543 warn "loading config and database again";
2455 cf::cfg_load; 2544 cf::cfg_load;
2456 cf::db_load;
2457 2545
2458 warn "loading extensions"; 2546 warn "loading extensions";
2459 cf::load_extensions; 2547 cf::load_extensions;
2460 2548
2461 warn "reattaching attachments to objects/players"; 2549 warn "reattaching attachments to objects/players";
2462 _global_reattach; 2550 _global_reattach; # objects, sockets
2463 warn "reattaching attachments to maps"; 2551 warn "reattaching attachments to maps";
2464 reattach $_ for values %MAP; 2552 reattach $_ for values %MAP;
2553 warn "reattaching attachments to players";
2554 reattach $_ for values %PLAYER;
2465 2555
2466 warn "restarting server ticker"; 2556 warn "loading reloadable resources";
2557 reload_resources;
2467 2558
2468 $TICK_WATCHER->start; 2559 warn "leaving sync_job";
2469 };
2470 2560
2471 if ($@) { 2561 1
2562 } or do {
2472 warn $@; 2563 warn $@;
2473 warn "error while reloading, exiting."; 2564 warn "error while reloading, exiting.";
2474 exit 1; 2565 exit 1;
2475 } 2566 };
2476 2567
2477 warn "reloaded"; 2568 warn "reloaded";
2478}; 2569};
2479 2570
2480our $RELOAD_WATCHER; # used only during reload 2571our $RELOAD_WATCHER; # used only during reload
… …
2521 2612
2522 cf::server_tick; # one server iteration 2613 cf::server_tick; # one server iteration
2523 $RUNTIME += $TICK; 2614 $RUNTIME += $TICK;
2524 $NEXT_TICK += $TICK; 2615 $NEXT_TICK += $TICK;
2525 2616
2617 if ($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
2526 $WAIT_FOR_TICK->broadcast; 2625 $WAIT_FOR_TICK->broadcast;
2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2626 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2528 2627
2529 Event::sweep;
2530 Coro::cede_notself;
2531
2532# my $AFTER = Event::time; 2628# my $AFTER = Event::time;
2533# warn $AFTER - $NOW;#d# 2629# warn $AFTER - $NOW;#d#
2534 2630
2535 # 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
2536 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2632 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2538 $TICK_WATCHER->at ($NEXT_TICK); 2634 $TICK_WATCHER->at ($NEXT_TICK);
2539 $TICK_WATCHER->start; 2635 $TICK_WATCHER->start;
2540 }, 2636 },
2541); 2637);
2542 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;
2543IO::AIO::max_poll_time $TICK * 0.1; 2693 IO::AIO::max_poll_time $TICK * 0.1;
2544
2545undef $Coro::AIO::WATCHER;
2546$AIO_POLL_WATCHER = Event->io ( 2694 $AIO_POLL_WATCHER = Event->io (
2547 reentrant => 0, 2695 reentrant => 0,
2696 data => WF_AUTOCANCEL,
2548 fd => IO::AIO::poll_fileno, 2697 fd => IO::AIO::poll_fileno,
2549 poll => 'r', 2698 poll => 'r',
2550 prio => 6, 2699 prio => 6,
2551 data => WF_AUTOCANCEL,
2552 cb => \&IO::AIO::poll_cb, 2700 cb => \&IO::AIO::poll_cb,
2553); 2701 );
2554 2702}
2555$WRITE_RUNTIME_WATCHER = Event->timer (
2556 reentrant => 0,
2557 data => WF_AUTOCANCEL,
2558 after => 1,
2559 interval => 10,
2560 prio => 6, # keep it lowest so it acts like a watchdog
2561 cb => Coro::unblock_sub {
2562 write_runtime
2563 or warn "ERROR: unable to write runtime file: $!";
2564 },
2565);
2566 2703
2567END { cf::emergency_save } 2704END { cf::emergency_save }
2568 2705
25691 27061
2570 2707

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