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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.180 by root, Fri Jan 19 00:38:02 2007 UTC vs.
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket;
8use Storable; 9use Storable;
10use Event;
9use Opcode; 11use Opcode;
10use Safe; 12use Safe;
11use Safe::Hole; 13use Safe::Hole;
12 14
13use Coro 3.4 (); 15use Coro 3.61 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
19 24
25use BDB ();
20use Data::Dumper; 26use Data::Dumper;
21use Digest::MD5; 27use Digest::MD5;
22use Fcntl; 28use Fcntl;
29use YAML::Syck ();
23use IO::AIO 2.32 (); 30use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 31use Time::HiRes;
32use Compress::LZF;
26 33
34# configure various modules to our taste
35#
36$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
38Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 40$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 41
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 42# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 43$YAML::Syck::ImplicitUnicode = 1;
33 44
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 45$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46
47sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 48
36our %COMMAND = (); 49our %COMMAND = ();
37our %COMMAND_TIME = (); 50our %COMMAND_TIME = ();
38 51
39our @EXTS = (); # list of extension package names 52our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 53our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 54our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 55our %EXT_MAP = (); # pluggable maps
43 56
57our $RELOAD; # number of reloads so far
44our @EVENT; 58our @EVENT;
45our $LIBDIR = datadir . "/ext"; 59our $LIBDIR = datadir . "/ext";
46 60
47our $TICK = MAX_TIME * 1e-6; 61our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48our $TICK_WATCHER; 62our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 63our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 64our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 65our $NEXT_TICK;
52our $NOW; 66our $NOW;
67our $USE_FSYNC = 1; # use fsync to write maps - default off
68
69our $BDB_POLL_WATCHER;
70our $DB_ENV;
53 71
54our %CFG; 72our %CFG;
55 73
56our $UPTIME; $UPTIME ||= time; 74our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 75our $RUNTIME;
58 76
59our %PLAYER; # all users 77our %PLAYER; # all users
60our %MAP; # all maps 78our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 79our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 80our $RANDOM_MAPS = cf::localdir . "/random";
63 81our $BDB_ENV_DIR = cf::localdir . "/db";
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 82
67# used to convert map paths into valid unix filenames by replacing / by ∕ 83# used to convert map paths into valid unix filenames by replacing / by ∕
68our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 84our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69 85
70binmode STDOUT; 86binmode STDOUT;
80mkdir cf::localdir; 96mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 97mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 98mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 99mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 100mkdir $RANDOM_MAPS;
101mkdir $BDB_ENV_DIR;
85 102
86our $EMERGENCY_POSITION; 103our $EMERGENCY_POSITION;
104
105sub cf::map::normalise;
87 106
88############################################################################# 107#############################################################################
89 108
90=head2 GLOBAL VARIABLES 109=head2 GLOBAL VARIABLES
91 110
116=item %cf::CFG 135=item %cf::CFG
117 136
118Configuration for the server, loaded from C</etc/crossfire/config>, or 137Configuration for the server, loaded from C</etc/crossfire/config>, or
119from wherever your confdir points to. 138from wherever your confdir points to.
120 139
121=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 140=item cf::wait_for_tick, cf::wait_for_tick_begin
122 141
123These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 142These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 143returns directly I<after> the tick processing (and consequently, can only wake one process
125processing has been done. Call C<< ->wait >> on them to maximise the 144per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126window of cpu time available, or simply to synchronise to the server tick.
127 145
128=back 146=back
129 147
130=cut 148=cut
131 149
132BEGIN { 150BEGIN {
133 *CORE::GLOBAL::warn = sub { 151 *CORE::GLOBAL::warn = sub {
134 my $msg = join "", @_; 152 my $msg = join "", @_;
135 utf8::encode $msg;
136 153
137 $msg .= "\n" 154 $msg .= "\n"
138 unless $msg =~ /\n$/; 155 unless $msg =~ /\n$/;
139 156
157 $msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158
159 utf8::encode $msg;
140 LOG llevError, $msg; 160 LOG llevError, $msg;
141 }; 161 };
142} 162}
143 163
144@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 164@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
190 $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;
191 $d 211 $d
192 } || "[unable to dump $_[0]: '$@']"; 212 } || "[unable to dump $_[0]: '$@']";
193} 213}
194 214
195use JSON::Syck (); # TODO# replace by JSON::PC once working 215use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196 216
197=item $ref = cf::from_json $json 217=item $ref = cf::from_json $json
198 218
199Converts a JSON string into the corresponding perl data structure. 219Converts a JSON string into the corresponding perl data structure.
200 220
201=cut
202
203sub from_json($) {
204 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205 JSON::Syck::Load $_[0]
206}
207
208=item $json = cf::to_json $ref 221=item $json = cf::to_json $ref
209 222
210Converts a perl data structure into its JSON representation. 223Converts a perl data structure into its JSON representation.
211
212=cut
213
214sub to_json($) {
215 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216 JSON::Syck::Dump $_[0]
217}
218 224
219=item cf::lock_wait $string 225=item cf::lock_wait $string
220 226
221Wait until the given lock is available. See cf::lock_acquire. 227Wait until the given lock is available. See cf::lock_acquire.
222 228
261sub freeze_mainloop { 267sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 268 return unless $TICK_WATCHER->is_active;
263 269
264 my $guard = Coro::guard { 270 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 271 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 272 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 273 $TICK_WATCHER->stop;
270 $guard 274 $guard
271} 275}
272 276
273=item cf::async { BLOCK } 277=item cf::async { BLOCK }
344 348
345 $coro 349 $coro
346} 350}
347 351
348sub write_runtime { 352sub write_runtime {
353 my $guard = cf::lock_acquire "write_runtime";
354
349 my $runtime = cf::localdir . "/runtime"; 355 my $runtime = cf::localdir . "/runtime";
350 356
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 357 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 358 or return;
353 359
360 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 361 # 10 is the runtime save interval, for a monotonic clock
362 # 60 allows for the watchdog to kill the server.
363
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 364 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 365 and return;
357 366
367 # always fsync - this file is important
358 aio_fsync $fh 368 aio_fsync $fh
359 and return; 369 and return;
360 370
361 close $fh 371 close $fh
362 or return; 372 or return;
363 373
364 aio_rename "$runtime~", $runtime 374 aio_rename "$runtime~", $runtime
365 and return; 375 and return;
366 376
367 1 377 1
378}
379
380=item cf::datalog type => key => value, ...
381
382Log a datalog packet of the given type with the given key-value pairs.
383
384=cut
385
386sub datalog($@) {
387 my ($type, %kv) = @_;
388 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368} 389}
369 390
370=back 391=back
371 392
372=cut 393=cut
747 $filename, length $$rdata, scalar @$objs; 768 $filename, length $$rdata, scalar @$objs;
748 769
749 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
751 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 772 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752 aio_fsync $fh; 773 aio_fsync $fh if $cf::USE_FSYNC;
753 close $fh; 774 close $fh;
754 775
755 if (@$objs) { 776 if (@$objs) {
756 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) {
757 chmod SAVE_MODE, $fh; 778 chmod SAVE_MODE, $fh;
758 my $data = Storable::nfreeze { version => 1, objs => $objs }; 779 my $data = Storable::nfreeze { version => 1, objs => $objs };
759 aio_write $fh, 0, (length $data), $data, 0; 780 aio_write $fh, 0, (length $data), $data, 0;
760 aio_fsync $fh; 781 aio_fsync $fh if $cf::USE_FSYNC;
761 close $fh; 782 close $fh;
762 aio_rename "$filename.pst~", "$filename.pst"; 783 aio_rename "$filename.pst~", "$filename.pst";
763 } 784 }
764 } else { 785 } else {
765 aio_unlink "$filename.pst"; 786 aio_unlink "$filename.pst";
944} 965}
945 966
946sub path($) { 967sub path($) {
947 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948 969
949 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
950} 971}
951 972
952sub find_active($) { 973sub find_active($) {
953 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
954 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
967 my $login = $_[0]; 988 my $login = $_[0];
968 989
969 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
970 991
971 $cf::PLAYER{$_[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
972 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
973 or return; 1001 or return;
974 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
975 } 1003 }
976 } 1004 }
1013 1041
1014=cut 1042=cut
1015 1043
1016sub quit_character { 1044sub quit_character {
1017 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1018 1048
1019 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1020 $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
1021 1051
1022 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1027 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1028 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1029 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1030 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1031 $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
1032 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 $pl->ns->destroy;
1033} 1083}
1034 1084
1035=item cf::player::list_logins 1085=item cf::player::list_logins
1036 1086
1037Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
1065=cut 1115=cut
1066 1116
1067sub maps($) { 1117sub maps($) {
1068 my ($pl) = @_; 1118 my ($pl) = @_;
1069 1119
1120 $pl = ref $pl ? $pl->ob->name : $pl;
1121
1070 my $files = aio_readdir playerdir $pl 1122 my $files = aio_readdir playerdir $pl
1071 or return; 1123 or return;
1072 1124
1073 my @paths; 1125 my @paths;
1074 1126
1075 for (@$files) { 1127 for (@$files) {
1076 utf8::decode $_; 1128 utf8::decode $_;
1077 next if /\.(?:pl|pst)$/; 1129 next if /\.(?:pl|pst)$/;
1078 next unless /^$PATH_SEP/o; 1130 next unless /^$PATH_SEP/o;
1079 1131
1080 s/\.map$//; 1132 push @paths, cf::map::normalise "~$pl/$_";
1081 push @paths, "~" . $pl->ob->name . "/" . $_;
1082 } 1133 }
1083 1134
1084 \@paths 1135 \@paths
1085} 1136}
1086 1137
1087=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1088 1139
1089Sends an ext reply to the player. 1140Sends an ext reply to the player.
1090 1141
1091=cut 1142=cut
1092 1143
1093sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1094 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1095 1146
1096 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1097 1148
1098 $self->send ("ext " . cf::to_json \%msg); 1149 $self->send ("ext " . cf::to_json \%msg);
1099} 1150}
1100 1151
1101package cf; 1152=item $player->ext_event ($type, %msg)
1153
1154Sends an ext event to the client.
1155
1156=cut
1157
1158sub ext_event($$%) {
1159 my ($self, $type, %msg) = @_;
1160
1161 $self->ns->ext_event ($type, %msg);
1162}
1163
1164=head3 cf::region
1165
1166=over 4
1167
1168=cut
1169
1170package cf::region;
1171
1172=item cf::region::find_by_path $path
1173
1174Tries to decuce the probable region for a map knowing only its path.
1175
1176=cut
1177
1178sub find_by_path($) {
1179 my ($path) = @_;
1180
1181 my ($match, $specificity);
1182
1183 for my $region (list) {
1184 if ($region->match && $path =~ $region->match) {
1185 ($match, $specificity) = ($region, $region->specificity)
1186 if $region->specificity > $specificity;
1187 }
1188 }
1189
1190 $match
1191}
1102 1192
1103=back 1193=back
1104
1105 1194
1106=head3 cf::map 1195=head3 cf::map
1107 1196
1108=over 4 1197=over 4
1109 1198
1137 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1226 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138 (cf::region::find $rmp->{region}), $rmp->{custom} 1227 (cf::region::find $rmp->{region}), $rmp->{custom}
1139 ) 1228 )
1140} 1229}
1141 1230
1231=item cf::map->register ($regex, $prio)
1232
1233Register a handler for the map path matching the given regex at the
1234givne priority (higher is better, built-in handlers have priority 0, the
1235default).
1236
1237=cut
1238
1142sub register { 1239sub register {
1143 my (undef, $regex) = @_; 1240 my (undef, $regex, $prio) = @_;
1144 my $pkg = caller; 1241 my $pkg = caller;
1145 1242
1146 no strict; 1243 no strict;
1147 push @{"$pkg\::ISA"}, __PACKAGE__; 1244 push @{"$pkg\::ISA"}, __PACKAGE__;
1148 1245
1149 $EXT_MAP{$pkg} = qr<$regex>; 1246 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150} 1247}
1151 1248
1152# also paths starting with '/' 1249# also paths starting with '/'
1153$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1250$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154 1251
1155sub thawer_merge { 1252sub thawer_merge {
1156 my ($self, $merge) = @_; 1253 my ($self, $merge) = @_;
1157 1254
1158 # we have to keep some variables in memory intact 1255 # we have to keep some variables in memory intact
1164 $self->SUPER::thawer_merge ($merge); 1261 $self->SUPER::thawer_merge ($merge);
1165} 1262}
1166 1263
1167sub normalise { 1264sub normalise {
1168 my ($path, $base) = @_; 1265 my ($path, $base) = @_;
1266
1267 $path = "$path"; # make sure its a string
1268
1269 $path =~ s/\.map$//;
1169 1270
1170 # map plan: 1271 # map plan:
1171 # 1272 #
1172 # /! non-realised random map exit (special hack!) 1273 # /! non-realised random map exit (special hack!)
1173 # {... are special paths that are not being touched 1274 # {... are special paths that are not being touched
1201 1302
1202 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1303 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203 1304
1204 $path = normalise $path, $base; 1305 $path = normalise $path, $base;
1205 1306
1206 for my $pkg (keys %EXT_MAP) { 1307 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207 if ($path =~ $EXT_MAP{$pkg}) { 1308 if ($path =~ $EXT_MAP{$pkg}[1]) {
1208 my $self = bless cf::map::new, $pkg; 1309 my $self = bless cf::map::new, $pkg;
1209 $self->{path} = $path; $self->path ($path); 1310 $self->{path} = $path; $self->path ($path);
1210 $self->init; # pass $1 etc. 1311 $self->init; # pass $1 etc.
1211 return $self; 1312 return $self;
1212 } 1313 }
1213 } 1314 }
1214 1315
1215 Carp::carp "unable to resolve path '$path'."; 1316 Carp::carp "unable to resolve path '$path' (base '$base').";
1216 () 1317 ()
1217} 1318}
1218 1319
1219sub init { 1320sub init {
1220 my ($self) = @_; 1321 my ($self) = @_;
1235 1336
1236# the original (read-only) location 1337# the original (read-only) location
1237sub load_path { 1338sub load_path {
1238 my ($self) = @_; 1339 my ($self) = @_;
1239 1340
1240 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1341 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1241} 1342}
1242 1343
1243# the temporary/swap location 1344# the temporary/swap location
1244sub save_path { 1345sub save_path {
1245 my ($self) = @_; 1346 my ($self) = @_;
1246 1347
1247 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1348 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1349 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1249} 1350}
1250 1351
1251# the unique path, undef == no special unique path 1352# the unique path, undef == no special unique path
1252sub uniq_path { 1353sub uniq_path {
1253 my ($self) = @_; 1354 my ($self) = @_;
1275 1376
1276sub load_header_from($) { 1377sub load_header_from($) {
1277 my ($self, $path) = @_; 1378 my ($self, $path) = @_;
1278 1379
1279 utf8::encode $path; 1380 utf8::encode $path;
1280 aio_open $path, O_RDONLY, 0 1381 #aio_open $path, O_RDONLY, 0
1281 or return; 1382 # or return;
1282 1383
1283 $self->_load_header ($path) 1384 $self->_load_header ($path)
1284 or return; 1385 or return;
1285 1386
1286 $self->{load_path} = $path; 1387 $self->{load_path} = $path;
1287 1388
1288 1 1389 1
1289} 1390}
1290 1391
1291sub load_orig { 1392sub load_header_orig {
1292 my ($self) = @_; 1393 my ($self) = @_;
1293 1394
1294 $self->load_header_from ($self->load_path) 1395 $self->load_header_from ($self->load_path)
1295} 1396}
1296 1397
1297sub load_temp { 1398sub load_header_temp {
1298 my ($self) = @_; 1399 my ($self) = @_;
1299 1400
1300 $self->load_header_from ($self->save_path) 1401 $self->load_header_from ($self->save_path)
1402}
1403
1404sub prepare_temp {
1405 my ($self) = @_;
1406
1407 $self->last_access ((delete $self->{last_access})
1408 || $cf::RUNTIME); #d#
1409 # safety
1410 $self->{instantiate_time} = $cf::RUNTIME
1411 if $self->{instantiate_time} > $cf::RUNTIME;
1412}
1413
1414sub prepare_orig {
1415 my ($self) = @_;
1416
1417 $self->{load_original} = 1;
1418 $self->{instantiate_time} = $cf::RUNTIME;
1419 $self->last_access ($cf::RUNTIME);
1420 $self->instantiate;
1301} 1421}
1302 1422
1303sub load_header { 1423sub load_header {
1304 my ($self) = @_; 1424 my ($self) = @_;
1305 1425
1306 if ($self->load_temp) { 1426 if ($self->load_header_temp) {
1307 $self->last_access ((delete $self->{last_access}) 1427 $self->prepare_temp;
1308 || $cf::RUNTIME); #d#
1309 # safety
1310 $self->{instantiate_time} = $cf::RUNTIME
1311 if $self->{instantiate_time} > $cf::RUNTIME;
1312 } else { 1428 } else {
1313 $self->load_orig 1429 $self->load_header_orig
1314 or return; 1430 or return;
1315 1431 $self->prepare_orig;
1316 $self->{load_original} = 1;
1317 $self->{instantiate_time} = $cf::RUNTIME;
1318 $self->last_access ($cf::RUNTIME);
1319 $self->instantiate;
1320 } 1432 }
1433
1434 $self->default_region (cf::region::find_by_path $self->{path})
1435 unless $self->default_region;
1321 1436
1322 1 1437 1
1323} 1438}
1324 1439
1325sub find; 1440sub find;
1338 $map->{last_save} = $cf::RUNTIME; 1453 $map->{last_save} = $cf::RUNTIME;
1339 1454
1340 $map->load_header 1455 $map->load_header
1341 or return; 1456 or return;
1342 1457
1343 if ($map->should_reset) { 1458 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1459 # doing this can freeze the server in a sync job, obviously
1344 $cf::WAIT_FOR_TICK->wait; 1460 #$cf::WAIT_FOR_TICK->wait;
1345 $map->reset; 1461 $map->reset;
1346 undef $guard; 1462 undef $guard;
1347 $map = find $path 1463 return find $path;
1348 or return;
1349 } 1464 }
1350 1465
1351 $cf::MAP{$path} = $map 1466 $cf::MAP{$path} = $map
1352 } 1467 }
1353} 1468}
1469
1470sub pre_load { }
1471sub post_load { }
1354 1472
1355sub load { 1473sub load {
1356 my ($self) = @_; 1474 my ($self) = @_;
1357 1475
1476 local $self->{deny_reset} = 1; # loading can take a long time
1477
1358 my $path = $self->{path}; 1478 my $path = $self->{path};
1359 my $guard = cf::lock_acquire "map_load:$path"; 1479 my $guard = cf::lock_acquire "map_load:$path";
1360 1480
1361 return if $self->in_memory != cf::MAP_SWAPPED; 1481 return if $self->in_memory != cf::MAP_SWAPPED;
1362 1482
1363 $self->in_memory (cf::MAP_LOADING); 1483 $self->in_memory (cf::MAP_LOADING);
1364 1484
1365 $self->alloc; 1485 $self->alloc;
1486
1487 $self->pre_load;
1488 Coro::cede;
1489
1366 $self->_load_objects ($self->{load_path}, 1) 1490 $self->_load_objects ($self->{load_path}, 1)
1367 or return; 1491 or return;
1368 1492
1369 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1493 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1370 if delete $self->{load_original}; 1494 if delete $self->{load_original};
1376 $self->_load_objects ($uniq, 0); 1500 $self->_load_objects ($uniq, 0);
1377 } 1501 }
1378 } 1502 }
1379 1503
1380 Coro::cede; 1504 Coro::cede;
1381
1382 # now do the right thing for maps 1505 # now do the right thing for maps
1383 $self->link_multipart_objects; 1506 $self->link_multipart_objects;
1507 Coro::cede;
1384 1508
1385 unless ($self->{deny_activate}) { 1509 unless ($self->{deny_activate}) {
1386 $self->decay_objects; 1510 $self->decay_objects;
1387 $self->fix_auto_apply; 1511 $self->fix_auto_apply;
1388 $self->update_buttons; 1512 $self->update_buttons;
1390 $self->set_darkness_map; 1514 $self->set_darkness_map;
1391 $self->difficulty ($self->estimate_difficulty) 1515 $self->difficulty ($self->estimate_difficulty)
1392 unless $self->difficulty; 1516 unless $self->difficulty;
1393 Coro::cede; 1517 Coro::cede;
1394 $self->activate; 1518 $self->activate;
1519 Coro::cede;
1395 } 1520 }
1521
1522 $self->post_load;
1523 Coro::cede;
1396 1524
1397 $self->in_memory (cf::MAP_IN_MEMORY); 1525 $self->in_memory (cf::MAP_IN_MEMORY);
1398} 1526}
1399 1527
1400sub customise_for { 1528sub customise_for {
1441 1569
1442 cf::sync_job { $map->load }; 1570 cf::sync_job { $map->load };
1443} 1571}
1444 1572
1445our %MAP_PREFETCH; 1573our %MAP_PREFETCH;
1446our $MAP_PREFETCHER = Coro::async { 1574our $MAP_PREFETCHER = undef;
1447 while () {
1448 for my $path (keys %MAP_PREFETCH) {
1449 my $map = find $path
1450 or next;
1451 $map->load;
1452
1453 delete $MAP_PREFETCH{$path};
1454 }
1455 Coro::schedule;
1456 }
1457};
1458 1575
1459sub find_async { 1576sub find_async {
1460 my ($path, $origin) = @_; 1577 my ($path, $origin) = @_;
1461 1578
1462 $path = normalise $path, $origin && $origin->{path}; 1579 $path = normalise $path, $origin && $origin->{path};
1463 1580
1464 if (my $map = $cf::MAP{$path}) { 1581 if (my $map = $cf::MAP{$path}) {
1465 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1582 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466 } 1583 }
1467 1584
1468 $MAP_PREFETCH{$path} = 0; 1585 undef $MAP_PREFETCH{$path};
1586 $MAP_PREFETCHER ||= cf::async {
1587 while (%MAP_PREFETCH) {
1588 for my $path (keys %MAP_PREFETCH) {
1589 my $map = find $path
1590 or next;
1591 $map->load;
1592
1593 delete $MAP_PREFETCH{$path};
1594 }
1595 }
1596 undef $MAP_PREFETCHER;
1597 };
1469 $MAP_PREFETCHER->ready; 1598 $MAP_PREFETCHER->prio (6);
1470 1599
1471 () 1600 ()
1472} 1601}
1473 1602
1474sub save { 1603sub save {
1544 return if $self->players; 1673 return if $self->players;
1545 return if $self->isa ("ext::map_per_player");#d# 1674 return if $self->isa ("ext::map_per_player");#d#
1546 1675
1547 warn "resetting map ", $self->path;#d# 1676 warn "resetting map ", $self->path;#d#
1548 1677
1678 $self->in_memory (cf::MAP_SWAPPED);
1679
1680 # need to save uniques path
1681 unless ($self->{deny_save}) {
1682 my $uniq = $self->uniq_path; utf8::encode $uniq;
1683
1684 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1685 if $uniq;
1686 }
1687
1549 delete $cf::MAP{$self->path}; 1688 delete $cf::MAP{$self->path};
1550 1689
1551 $self->in_memory (cf::MAP_SWAPPED);
1552 $self->clear; 1690 $self->clear;
1553 1691
1554 $_->clear_links_to ($self) for values %cf::MAP; 1692 $_->clear_links_to ($self) for values %cf::MAP;
1555 1693
1556 $self->unlink_save; 1694 $self->unlink_save;
1593 for (@$files) { 1731 for (@$files) {
1594 utf8::decode $_; 1732 utf8::decode $_;
1595 next if /\.pst$/; 1733 next if /\.pst$/;
1596 next unless /^$PATH_SEP/o; 1734 next unless /^$PATH_SEP/o;
1597 1735
1598 s/\.map$//; 1736 push @paths, cf::map::normalise $_;
1599 push @paths, $_;
1600 } 1737 }
1601 1738
1602 \@paths 1739 \@paths
1603} 1740}
1604 1741
1698=cut 1835=cut
1699 1836
1700sub link_map { 1837sub link_map {
1701 unless ($LINK_MAP) { 1838 unless ($LINK_MAP) {
1702 $LINK_MAP = cf::map::find "{link}" 1839 $LINK_MAP = cf::map::find "{link}"
1703 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1840 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704 $LINK_MAP->load; 1841 $LINK_MAP->load;
1705 } 1842 }
1706 1843
1707 $LINK_MAP 1844 $LINK_MAP
1708} 1845}
1715 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1852 return if UNIVERSAL::isa $self->map, "ext::map_link";
1716 1853
1717 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1854 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718 if $self->map; 1855 if $self->map;
1719 1856
1720 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1857 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1721} 1858}
1722 1859
1723sub cf::object::player::leave_link { 1860sub cf::object::player::leave_link {
1724 my ($self, $map, $x, $y) = @_; 1861 my ($self, $map, $x, $y) = @_;
1725 1862
1747 $map->load; 1884 $map->load;
1748 $map->load_diag; 1885 $map->load_diag;
1749 1886
1750 return unless $self->contr->active; 1887 return unless $self->contr->active;
1751 $self->activate_recursive; 1888 $self->activate_recursive;
1889
1890 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1752 $self->enter_map ($map, $x, $y); 1891 $self->enter_map ($map, $x, $y);
1753} 1892}
1754 1893
1755cf::player->attach ( 1894cf::player->attach (
1756 on_logout => sub { 1895 on_logout => sub {
1769 # try to abort aborted map switching on player login :) 1908 # try to abort aborted map switching on player login :)
1770 # should happen only on crashes 1909 # should happen only on crashes
1771 if ($pl->ob->{_link_pos}) { 1910 if ($pl->ob->{_link_pos}) {
1772 $pl->ob->enter_link; 1911 $pl->ob->enter_link;
1773 (async { 1912 (async {
1774 # we need this sleep as the login has a concurrent enter_exit running
1775 # and this sleep increases chances of the player not ending up in scorn
1776 $pl->ob->reply (undef, 1913 $pl->ob->reply (undef,
1777 "There was an internal problem at your last logout, " 1914 "There was an internal problem at your last logout, "
1778 . "the server will try to bring you to your intended destination in a second.", 1915 . "the server will try to bring you to your intended destination in a second.",
1779 cf::NDI_RED); 1916 cf::NDI_RED);
1917 # we need this sleep as the login has a concurrent enter_exit running
1918 # and this sleep increases chances of the player not ending up in scorn
1780 Coro::Timer::sleep 1; 1919 Coro::Timer::sleep 1;
1781 $pl->ob->leave_link; 1920 $pl->ob->leave_link;
1782 })->prio (2); 1921 })->prio (2);
1783 } 1922 }
1784 }, 1923 },
1792 my ($self, $path, $x, $y) = @_; 1931 my ($self, $path, $x, $y) = @_;
1793 1932
1794 $self->enter_link; 1933 $self->enter_link;
1795 1934
1796 (async { 1935 (async {
1936 my $map = eval {
1797 my $map = cf::map::find $path; 1937 my $map = cf::map::find $path;
1798 $map = $map->customise_for ($self) if $map; 1938 $map = $map->customise_for ($self) if $map;
1799 1939 $map
1800# warn "entering ", $map->path, " at ($x, $y)\n" 1940 } or
1801# if $map;
1802
1803 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1941 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1804 1942
1805 $self->leave_link ($map, $x, $y); 1943 $self->leave_link ($map, $x, $y);
1806 })->prio (1); 1944 })->prio (1);
1807} 1945}
1808 1946
1812 1950
1813sub parse_random_map_params { 1951sub parse_random_map_params {
1814 my ($spec) = @_; 1952 my ($spec) = @_;
1815 1953
1816 my $rmp = { # defaults 1954 my $rmp = { # defaults
1817 xsize => -1, 1955 xsize => (cf::rndm 15, 40),
1818 ysize => -1, 1956 ysize => (cf::rndm 15, 40),
1957 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1958 #layout => string,
1819 }; 1959 };
1820 1960
1821 for (split /\n/, $spec) { 1961 for (split /\n/, $spec) {
1822 my ($k, $v) = split /\s+/, $_, 2; 1962 my ($k, $v) = split /\s+/, $_, 2;
1823 1963
1837 # that depends on the exit object 1977 # that depends on the exit object
1838 1978
1839 my $rmp = parse_random_map_params $exit->msg; 1979 my $rmp = parse_random_map_params $exit->msg;
1840 1980
1841 if ($exit->map) { 1981 if ($exit->map) {
1842 $rmp->{region} = $exit->map->region_name; 1982 $rmp->{region} = $exit->region->name;
1843 $rmp->{origin_map} = $exit->map->path; 1983 $rmp->{origin_map} = $exit->map->path;
1844 $rmp->{origin_x} = $exit->x; 1984 $rmp->{origin_x} = $exit->x;
1845 $rmp->{origin_y} = $exit->y; 1985 $rmp->{origin_y} = $exit->y;
1846 } 1986 }
1847 1987
1864sub cf::object::player::enter_exit { 2004sub cf::object::player::enter_exit {
1865 my ($self, $exit) = @_; 2005 my ($self, $exit) = @_;
1866 2006
1867 return unless $self->type == cf::PLAYER; 2007 return unless $self->type == cf::PLAYER;
1868 2008
2009 if ($exit->slaying eq "/!") {
2010 #TODO: this should de-fi-ni-te-ly not be a sync-job
2011 # the problem is that $exit might not survive long enough
2012 # so it needs to be done right now, right here
2013 cf::sync_job { prepare_random_map $exit };
2014 }
2015
2016 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017 my $hp = $exit->stats->hp;
2018 my $sp = $exit->stats->sp;
2019
1869 $self->enter_link; 2020 $self->enter_link;
1870 2021
1871 (async { 2022 (async {
1872 $self->deactivate_recursive; # just to be sure 2023 $self->deactivate_recursive; # just to be sure
1873 unless (eval { 2024 unless (eval {
1874 prepare_random_map $exit 2025 $self->goto ($slaying, $hp, $sp);
1875 if $exit->slaying eq "/!";
1876
1877 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1878 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1879 2026
1880 1; 2027 1;
1881 }) { 2028 }) {
1882 $self->message ("Something went wrong deep within the crossfire server. " 2029 $self->message ("Something went wrong deep within the crossfire server. "
1883 . "I'll try to bring you back to the map you were before. " 2030 . "I'll try to bring you back to the map you were before. "
1884 . "Please report this to the dungeon master!", 2031 . "Please report this to the dungeon master!",
1885 cf::NDI_UNIQUE | cf::NDI_RED); 2032 cf::NDI_UNIQUE | cf::NDI_RED);
1886 2033
1887 warn "ERROR in enter_exit: $@"; 2034 warn "ERROR in enter_exit: $@";
1888 $self->leave_link; 2035 $self->leave_link;
1889 } 2036 }
1890 })->prio (1); 2037 })->prio (1);
1903 2050
1904sub cf::client::send_drawinfo { 2051sub cf::client::send_drawinfo {
1905 my ($self, $text, $flags) = @_; 2052 my ($self, $text, $flags) = @_;
1906 2053
1907 utf8::encode $text; 2054 utf8::encode $text;
1908 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2055 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909} 2056}
1910 2057
2058=item $client->ext_event ($type, %msg)
2059
2060Sends an exti event to the client.
2061
2062=cut
2063
2064sub cf::client::ext_event($$%) {
2065 my ($self, $type, %msg) = @_;
2066
2067 $msg{msgtype} = "event_$type";
2068 $self->send_packet ("ext " . cf::to_json \%msg);
2069}
1911 2070
1912=item $success = $client->query ($flags, "text", \&cb) 2071=item $success = $client->query ($flags, "text", \&cb)
1913 2072
1914Queues a query to the client, calling the given callback with 2073Queues a query to the client, calling the given callback with
1915the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2074the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1944 # get handled first 2103 # get handled first
1945 my $queue = delete $ns->{query_queue} 2104 my $queue = delete $ns->{query_queue}
1946 or return; # be conservative, not sure how that can happen, but we saw a crash here 2105 or return; # be conservative, not sure how that can happen, but we saw a crash here
1947 2106
1948 (shift @$queue)->[1]->($msg); 2107 (shift @$queue)->[1]->($msg);
2108 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949 2109
1950 push @{ $ns->{query_queue} }, @$queue; 2110 push @{ $ns->{query_queue} }, @$queue;
1951 2111
1952 if (@{ $ns->{query_queue} } == @$queue) { 2112 if (@{ $ns->{query_queue} } == @$queue) {
1953 if (@$queue) { 2113 if (@$queue) {
2011 2171
2012# here we export the classes and methods available to script code 2172# here we export the classes and methods available to script code
2013 2173
2014=pod 2174=pod
2015 2175
2016The following fucntions and emthods are available within a safe environment: 2176The following functions and methods are available within a safe environment:
2017 2177
2018 cf::object contr pay_amount pay_player map 2178 cf::object contr pay_amount pay_player map
2019 cf::object::player player 2179 cf::object::player player
2020 cf::player peaceful 2180 cf::player peaceful
2021 cf::map trigger 2181 cf::map trigger
2106############################################################################# 2266#############################################################################
2107 2267
2108=head2 EXTENSION DATABASE SUPPORT 2268=head2 EXTENSION DATABASE SUPPORT
2109 2269
2110Crossfire maintains a very simple database for extension use. It can 2270Crossfire maintains a very simple database for extension use. It can
2111currently store anything that can be serialised using Storable, which 2271currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2112excludes objects. 2272convert to/from binary).
2113 2273
2114The parameter C<$family> should best start with the name of the extension 2274The parameter C<$family> should best start with the name of the extension
2115using it, it should be unique. 2275using it, it should be unique.
2116 2276
2117=over 4 2277=over 4
2118 2278
2119=item $hashref = cf::db_get $family
2120
2121Return a hashref for use by the extension C<$family>, which can be
2122modified. After modifications, you have to call C<cf::db_dirty> or
2123C<cf::db_sync>.
2124
2125=item $value = cf::db_get $family => $key 2279=item $value = cf::db_get $family => $key
2126 2280
2127Returns a single value from the database 2281Returns a single value from the database.
2128
2129=item cf::db_put $family => $hashref
2130
2131Stores the given family hashref into the database. Updates are delayed, if
2132you want the data to be synced to disk immediately, use C<cf::db_sync>.
2133 2282
2134=item cf::db_put $family => $key => $value 2283=item cf::db_put $family => $key => $value
2135 2284
2136Stores the given C<$value> in the family hash. Updates are delayed, if you 2285Stores the given C<$value> in the family.
2137want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139=item cf::db_dirty
2140
2141Marks the database as dirty, to be updated at a later time.
2142
2143=item cf::db_sync
2144
2145Immediately write the database to disk I<if it is dirty>.
2146 2286
2147=cut 2287=cut
2148 2288
2149our $DB; 2289our $DB;
2150 2290
2151{ 2291sub db_init {
2152 my $path = cf::localdir . "/database.pst"; 2292 unless ($DB) {
2293 $DB = BDB::db_create $DB_ENV;
2153 2294
2154 sub db_load() { 2295 cf::sync_job {
2155 $DB = stat $path ? Storable::retrieve $path : { }; 2296 eval {
2156 } 2297 $DB->set_flags (BDB::CHKSUM);
2157 2298
2158 my $pid; 2299 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2159 2300 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2160 sub db_save() { 2301 cf::cleanup "db_open(db): $!" if $!;
2161 waitpid $pid, 0 if $pid; 2302 };
2162 if (0 == ($pid = fork)) { 2303 cf::cleanup "db_open(db): $@" if $@;
2163 $DB->{_meta}{version} = 1;
2164 Storable::nstore $DB, "$path~";
2165 rename "$path~", $path;
2166 cf::_exit 0 if defined $pid;
2167 } 2304 };
2168 }
2169
2170 my $dirty;
2171
2172 sub db_sync() {
2173 db_save if $dirty;
2174 undef $dirty;
2175 }
2176
2177 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178 db_sync;
2179 }); 2305 }
2306}
2180 2307
2181 sub db_dirty() {
2182 $dirty = 1;
2183 $idle->start;
2184 }
2185
2186 sub db_get($;$) { 2308sub db_get($$) {
2187 @_ >= 2 2309 my $key = "$_[0]/$_[1]";
2188 ? $DB->{$_[0]}{$_[1]}
2189 : ($DB->{$_[0]} ||= { })
2190 }
2191 2310
2311 cf::sync_job {
2312 BDB::db_get $DB, undef, $key, my $data;
2313
2314 $! ? ()
2315 : $data
2316 }
2317}
2318
2192 sub db_put($$;$) { 2319sub db_put($$$) {
2193 if (@_ >= 3) { 2320 BDB::dbreq_pri 4;
2194 $DB->{$_[0]}{$_[1]} = $_[2]; 2321 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2195 } else { 2322}
2196 $DB->{$_[0]} = $_[1];
2197 }
2198 db_dirty;
2199 }
2200 2323
2201 cf::global->attach ( 2324=item cf::cache $id => [$paths...], $processversion => $process
2202 prio => 10000, 2325
2203 on_cleanup => sub { 2326Generic caching function that returns the value of the resource $id,
2204 db_sync; 2327caching and regenerating as required.
2328
2329This function can block.
2330
2331=cut
2332
2333sub cache {
2334 my ($id, $src, $processversion, $process) = @_;
2335
2336 my $meta =
2337 join "\x00",
2338 $processversion,
2339 map {
2340 aio_stat $_
2341 and Carp::croak "$_: $!";
2342
2343 ($_, (stat _)[7,9])
2344 } @$src;
2345
2346 my $dbmeta = db_get cache => "$id/meta";
2347 if ($dbmeta ne $meta) {
2348 # changed, we may need to process
2349
2350 my @data;
2351 my $md5;
2352
2353 for (0 .. $#$src) {
2354 0 <= aio_load $src->[$_], $data[$_]
2355 or Carp::croak "$src->[$_]: $!";
2205 }, 2356 }
2206 ); 2357
2358 # if processing is expensive, check
2359 # checksum first
2360 if (1) {
2361 $md5 =
2362 join "\x00",
2363 $processversion,
2364 map {
2365 Coro::cede;
2366 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2367 } 0.. $#$src;
2368
2369
2370 my $dbmd5 = db_get cache => "$id/md5";
2371 if ($dbmd5 eq $md5) {
2372 db_put cache => "$id/meta", $meta;
2373
2374 return db_get cache => "$id/data";
2375 }
2376 }
2377
2378 my $data = $process->(\@data);
2379
2380 db_put cache => "$id/data", $data;
2381 db_put cache => "$id/md5" , $md5;
2382 db_put cache => "$id/meta", $meta;
2383
2384 return $data;
2385 }
2386
2387 db_get cache => "$id/data"
2207} 2388}
2389
2390=item fork_call { }, $args
2391
2392Executes the given code block with the given arguments in a seperate
2393process, returning the results. Everything must be serialisable with
2394Coro::Storable. May, of course, block. Note that the executed sub may
2395never block itself or use any form of Event handling.
2396
2397=cut
2398
2399sub fork_call(&@) {
2400 my ($cb, @args) = @_;
2401
2402# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403# or die "socketpair: $!";
2404 pipe my $fh1, my $fh2
2405 or die "pipe: $!";
2406
2407 if (my $pid = fork) {
2408 close $fh2;
2409
2410 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411 $res = Coro::Storable::thaw $res;
2412
2413 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415 die $$res unless "ARRAY" eq ref $res;
2416
2417 return wantarray ? @$res : $res->[-1];
2418 } else {
2419 local $SIG{__WARN__};
2420 eval {
2421 local $SIG{__DIE__};
2422 close $fh1;
2423
2424 my @res = eval { $cb->(@args) };
2425 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426 };
2427
2428 warn $@ if $@;
2429 _exit 0;
2430 }
2431}
2432
2433
2208 2434
2209############################################################################# 2435#############################################################################
2210# the server's main() 2436# the server's init and main functions
2437
2438sub load_facedata($) {
2439 my ($path) = @_;
2440
2441 warn "loading facedata from $path\n";
2442
2443 my $facedata;
2444 0 < aio_load $path, $facedata
2445 or die "$path: $!";
2446
2447 $facedata = Coro::Storable::thaw $facedata;
2448
2449 $facedata->{version} == 2
2450 or cf::cleanup "$path: version mismatch, cannot proceed.";
2451
2452 {
2453 my $faces = $facedata->{faceinfo};
2454
2455 while (my ($face, $info) = each %$faces) {
2456 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2457 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2458 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2459 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2460 Coro::cede;
2461 }
2462
2463 while (my ($face, $info) = each %$faces) {
2464 next unless $info->{smooth};
2465 my $idx = cf::face::find $face
2466 or next;
2467 if (my $smooth = cf::face::find $info->{smooth}) {
2468 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2469 } else {
2470 warn "smooth face '$info->{smooth}' not found for face '$face'";
2471 }
2472 Coro::cede;
2473 }
2474 }
2475
2476 {
2477 my $anims = $facedata->{animinfo};
2478
2479 while (my ($anim, $info) = each %$anims) {
2480 cf::anim::set $anim, $info->{frames}, $info->{facings};
2481 Coro::cede;
2482 }
2483
2484 cf::anim::invalidate_all; # d'oh
2485 }
2486
2487 1
2488}
2489
2490sub reload_facedata {
2491 load_facedata sprintf "%s/facedata", cf::datadir
2492 or die "unable to load facedata\n";
2493}
2494
2495sub reload_regions {
2496 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497 or die "unable to load regions file\n";
2498}
2499
2500sub reload_archetypes {
2501 load_resource_file sprintf "%s/archetypes", cf::datadir
2502 or die "unable to load archetypes\n";
2503}
2504
2505sub reload_treasures {
2506 load_resource_file sprintf "%s/treasures", cf::datadir
2507 or die "unable to load treasurelists\n";
2508}
2509
2510sub reload_resources {
2511 warn "reloading resource files...\n";
2512
2513 reload_regions;
2514 reload_facedata;
2515 reload_archetypes;
2516 reload_treasures;
2517
2518 warn "finished reloading resource files\n";
2519}
2520
2521sub init {
2522 reload_resources;
2523}
2211 2524
2212sub cfg_load { 2525sub cfg_load {
2213 open my $fh, "<:utf8", cf::confdir . "/config" 2526 open my $fh, "<:utf8", cf::confdir . "/config"
2214 or return; 2527 or return;
2215 2528
2238 Event::one_event; 2551 Event::one_event;
2239 })->prio (Coro::PRIO_MAX); 2552 })->prio (Coro::PRIO_MAX);
2240 }; 2553 };
2241 2554
2242 cfg_load; 2555 cfg_load;
2243 db_load; 2556 db_init;
2244 load_extensions; 2557 load_extensions;
2558
2559 $TICK_WATCHER->start;
2245 Event::loop; 2560 Event::loop;
2246} 2561}
2247 2562
2248############################################################################# 2563#############################################################################
2249# initialisation and cleanup 2564# initialisation and cleanup
2250 2565
2251# install some emergency cleanup handlers 2566# install some emergency cleanup handlers
2252BEGIN { 2567BEGIN {
2253 for my $signal (qw(INT HUP TERM)) { 2568 for my $signal (qw(INT HUP TERM)) {
2254 Event->signal ( 2569 Event->signal (
2570 reentrant => 0,
2255 data => WF_AUTOCANCEL, 2571 data => WF_AUTOCANCEL,
2256 signal => $signal, 2572 signal => $signal,
2573 prio => 0,
2257 cb => sub { 2574 cb => sub {
2258 cf::cleanup "SIG$signal"; 2575 cf::cleanup "SIG$signal";
2259 }, 2576 },
2260 ); 2577 );
2261 } 2578 }
2262} 2579}
2283 my $map = $cf::MAP{$path} or next; 2600 my $map = $cf::MAP{$path} or next;
2284 $map->valid or next; 2601 $map->valid or next;
2285 $map->save; 2602 $map->save;
2286 } 2603 }
2287 warn "end emergency map save\n"; 2604 warn "end emergency map save\n";
2605
2606 warn "begin emergency database checkpoint\n";
2607 BDB::db_env_txn_checkpoint $DB_ENV;
2608 warn "end emergency database checkpoint\n";
2288 }; 2609 };
2289 2610
2290 warn "leave emergency perl save\n"; 2611 warn "leave emergency perl save\n";
2291} 2612}
2292 2613
2614sub post_cleanup {
2615 my ($make_core) = @_;
2616
2617 warn Carp::longmess "post_cleanup backtrace"
2618 if $make_core;
2619}
2620
2293sub reload() { 2621sub do_reload_perl() {
2294 # can/must only be called in main 2622 # can/must only be called in main
2295 if ($Coro::current != $Coro::main) { 2623 if ($Coro::current != $Coro::main) {
2296 warn "can only reload from main coroutine\n"; 2624 warn "can only reload from main coroutine";
2297 return; 2625 return;
2298 } 2626 }
2299 2627
2300 warn "reloading..."; 2628 warn "reloading...";
2301 2629
2302 warn "freezing server"; 2630 warn "entering sync_job";
2303 my $guard = freeze_mainloop; 2631
2632 cf::sync_job {
2633 cf::write_runtime; # external watchdog should not bark
2304 cf::emergency_save; 2634 cf::emergency_save;
2635 cf::write_runtime; # external watchdog should not bark
2305 2636
2306 warn "sync database to disk"; 2637 warn "syncing database to disk";
2307 cf::db_sync; 2638 BDB::db_env_txn_checkpoint $DB_ENV;
2308 IO::AIO::flush;
2309 2639
2310 eval {
2311 # if anything goes wrong in here, we should simply crash as we already saved 2640 # if anything goes wrong in here, we should simply crash as we already saved
2312 2641
2313 warn "cancel all watchers"; 2642 warn "cancelling all WF_AUTOCANCEL watchers";
2314 for (Event::all_watchers) { 2643 for (Event::all_watchers) {
2315 $_->cancel if $_->data & WF_AUTOCANCEL; 2644 $_->cancel if $_->data & WF_AUTOCANCEL;
2316 } 2645 }
2317 2646
2647 warn "flushing outstanding aio requests";
2648 for (;;) {
2649 BDB::flush;
2650 IO::AIO::flush;
2651 Coro::cede;
2652 last unless IO::AIO::nreqs || BDB::nreqs;
2653 warn "iterate...";
2654 }
2655
2656 ++$RELOAD;
2657
2318 warn "cancel all extension coros"; 2658 warn "cancelling all extension coros";
2319 $_->cancel for values %EXT_CORO; 2659 $_->cancel for values %EXT_CORO;
2320 %EXT_CORO = (); 2660 %EXT_CORO = ();
2321 2661
2322 warn "remove commands"; 2662 warn "removing commands";
2323 %COMMAND = (); 2663 %COMMAND = ();
2324 2664
2325 warn "remove ext commands"; 2665 warn "removing ext commands";
2326 %EXTCMD = (); 2666 %EXTCMD = ();
2327 2667
2328 warn "unload/nuke all extensions"; 2668 warn "unloading/nuking all extensions";
2329 for my $pkg (@EXTS) { 2669 for my $pkg (@EXTS) {
2330 warn "... unloading $pkg"; 2670 warn "... unloading $pkg";
2331 2671
2332 if (my $cb = $pkg->can ("unload")) { 2672 if (my $cb = $pkg->can ("unload")) {
2333 eval { 2673 eval {
2338 2678
2339 warn "... nuking $pkg"; 2679 warn "... nuking $pkg";
2340 Symbol::delete_package $pkg; 2680 Symbol::delete_package $pkg;
2341 } 2681 }
2342 2682
2343 warn "unload all perl modules loaded from $LIBDIR"; 2683 warn "unloading all perl modules loaded from $LIBDIR";
2344 while (my ($k, $v) = each %INC) { 2684 while (my ($k, $v) = each %INC) {
2345 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2685 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2346 2686
2347 warn "removing <$k>"; 2687 warn "... unloading $k";
2348 delete $INC{$k}; 2688 delete $INC{$k};
2349 2689
2350 $k =~ s/\.pm$//; 2690 $k =~ s/\.pm$//;
2351 $k =~ s/\//::/g; 2691 $k =~ s/\//::/g;
2352 2692
2355 } 2695 }
2356 2696
2357 Symbol::delete_package $k; 2697 Symbol::delete_package $k;
2358 } 2698 }
2359 2699
2360 warn "get rid of safe::, as good as possible"; 2700 warn "getting rid of safe::, as good as possible";
2361 Symbol::delete_package "safe::$_" 2701 Symbol::delete_package "safe::$_"
2362 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2702 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363 2703
2364 warn "unload cf.pm \"a bit\""; 2704 warn "unloading cf.pm \"a bit\"";
2365 delete $INC{"cf.pm"}; 2705 delete $INC{"cf.pm"};
2706 delete $INC{"cf/pod.pm"};
2366 2707
2367 # don't, removes xs symbols, too, 2708 # don't, removes xs symbols, too,
2368 # and global variables created in xs 2709 # and global variables created in xs
2369 #Symbol::delete_package __PACKAGE__; 2710 #Symbol::delete_package __PACKAGE__;
2370 2711
2712 warn "unload completed, starting to reload now";
2713
2371 warn "reloading cf.pm"; 2714 warn "reloading cf.pm";
2372 require cf; 2715 require cf;
2373 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2716 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2374 2717
2375 warn "load config and database again"; 2718 warn "loading config and database again";
2376 cf::cfg_load; 2719 cf::cfg_load;
2377 cf::db_load;
2378 2720
2379 warn "load extensions"; 2721 warn "loading extensions";
2380 cf::load_extensions; 2722 cf::load_extensions;
2381 2723
2382 warn "reattach attachments to objects/players"; 2724 warn "reattaching attachments to objects/players";
2383 _global_reattach; 2725 _global_reattach; # objects, sockets
2384 warn "reattach attachments to maps"; 2726 warn "reattaching attachments to maps";
2385 reattach $_ for values %MAP; 2727 reattach $_ for values %MAP;
2386 }; 2728 warn "reattaching attachments to players";
2729 reattach $_ for values %PLAYER;
2387 2730
2388 if ($@) { 2731 warn "leaving sync_job";
2732
2733 1
2734 } or do {
2389 warn $@; 2735 warn $@;
2390 warn "error while reloading, exiting."; 2736 warn "error while reloading, exiting.";
2391 exit 1; 2737 exit 1;
2392 } 2738 };
2393 2739
2394 warn "reloaded"; 2740 warn "reloaded";
2395}; 2741};
2396 2742
2397our $RELOAD_WATCHER; # used only during reload 2743our $RELOAD_WATCHER; # used only during reload
2398 2744
2745sub reload_perl() {
2746 # doing reload synchronously and two reloads happen back-to-back,
2747 # coro crashes during coro_state_free->destroy here.
2748
2749 $RELOAD_WATCHER ||= Event->timer (
2750 reentrant => 0,
2751 after => 0,
2752 data => WF_AUTOCANCEL,
2753 cb => sub {
2754 do_reload_perl;
2755 undef $RELOAD_WATCHER;
2756 },
2757 );
2758}
2759
2399register_command "reload" => sub { 2760register_command "reload" => sub {
2400 my ($who, $arg) = @_; 2761 my ($who, $arg) = @_;
2401 2762
2402 if ($who->flag (FLAG_WIZ)) { 2763 if ($who->flag (FLAG_WIZ)) {
2403 $who->message ("reloading server."); 2764 $who->message ("reloading server.");
2404 2765 async { reload_perl };
2405 # doing reload synchronously and two reloads happen back-to-back,
2406 # coro crashes during coro_state_free->destroy here.
2407
2408 $RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2409 reload;
2410 undef $RELOAD_WATCHER;
2411 });
2412 } 2766 }
2413}; 2767};
2414 2768
2415unshift @INC, $LIBDIR; 2769unshift @INC, $LIBDIR;
2770
2771my $bug_warning = 0;
2772
2773our @WAIT_FOR_TICK;
2774our @WAIT_FOR_TICK_BEGIN;
2775
2776sub wait_for_tick {
2777 return unless $TICK_WATCHER->is_active;
2778 return if $Coro::current == $Coro::main;
2779
2780 my $signal = new Coro::Signal;
2781 push @WAIT_FOR_TICK, $signal;
2782 $signal->wait;
2783}
2784
2785sub wait_for_tick_begin {
2786 return unless $TICK_WATCHER->is_active;
2787 return if $Coro::current == $Coro::main;
2788
2789 my $signal = new Coro::Signal;
2790 push @WAIT_FOR_TICK_BEGIN, $signal;
2791 $signal->wait;
2792}
2416 2793
2417$TICK_WATCHER = Event->timer ( 2794$TICK_WATCHER = Event->timer (
2418 reentrant => 0, 2795 reentrant => 0,
2796 parked => 1,
2419 prio => 0, 2797 prio => 0,
2420 at => $NEXT_TICK || $TICK, 2798 at => $NEXT_TICK || $TICK,
2421 data => WF_AUTOCANCEL, 2799 data => WF_AUTOCANCEL,
2422 cb => sub { 2800 cb => sub {
2801 if ($Coro::current != $Coro::main) {
2802 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803 unless ++$bug_warning > 10;
2804 return;
2805 }
2806
2423 $NOW = Event::time; 2807 $NOW = Event::time;
2424 2808
2425 cf::server_tick; # one server iteration 2809 cf::server_tick; # one server iteration
2810
2426 $RUNTIME += $TICK; 2811 $RUNTIME += $TICK;
2427 $NEXT_TICK += $TICK; 2812 $NEXT_TICK += $TICK;
2428 2813
2429 $WAIT_FOR_TICK->broadcast; 2814 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2430 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2815 $NEXT_RUNTIME_WRITE = $NOW + 10;
2816 Coro::async_pool {
2817 write_runtime
2818 or warn "ERROR: unable to write runtime file: $!";
2819 };
2820 }
2821
2822# my $AFTER = Event::time;
2823# warn $AFTER - $NOW;#d#
2431 2824
2432 # if we are delayed by four ticks or more, skip them all 2825 # if we are delayed by four ticks or more, skip them all
2433 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2826 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2434 2827
2435 $TICK_WATCHER->at ($NEXT_TICK); 2828 $TICK_WATCHER->at ($NEXT_TICK);
2436 $TICK_WATCHER->start; 2829 $TICK_WATCHER->start;
2830
2831 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2832 $sig->send;
2833 }
2834 while (my $sig = shift @WAIT_FOR_TICK) {
2835 $sig->send;
2836 }
2837
2838 _post_tick;
2437 }, 2839 },
2438); 2840);
2439 2841
2842{
2843 BDB::max_poll_time $TICK * 0.1;
2844 $BDB_POLL_WATCHER = Event->io (
2845 reentrant => 0,
2846 fd => BDB::poll_fileno,
2847 poll => 'r',
2848 prio => 0,
2849 data => WF_AUTOCANCEL,
2850 cb => \&BDB::poll_cb,
2851 );
2852 BDB::min_parallel 8;
2853
2854 BDB::set_sync_prepare {
2855 my $status;
2856 my $current = $Coro::current;
2857 (
2858 sub {
2859 $status = $!;
2860 $current->ready; undef $current;
2861 },
2862 sub {
2863 Coro::schedule while defined $current;
2864 $! = $status;
2865 },
2866 )
2867 };
2868
2869 unless ($DB_ENV) {
2870 $DB_ENV = BDB::db_env_create;
2871
2872 cf::sync_job {
2873 eval {
2874 BDB::db_env_open
2875 $DB_ENV,
2876 $BDB_ENV_DIR,
2877 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879 0666;
2880
2881 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2882
2883 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884 $DB_ENV->set_lk_detect;
2885 };
2886
2887 cf::cleanup "db_env_open(db): $@" if $@;
2888 };
2889 }
2890}
2891
2892{
2893 IO::AIO::min_parallel 8;
2894
2895 undef $Coro::AIO::WATCHER;
2440IO::AIO::max_poll_time $TICK * 0.2; 2896 IO::AIO::max_poll_time $TICK * 0.1;
2441
2442$AIO_POLL_WATCHER = Event->io ( 2897 $AIO_POLL_WATCHER = Event->io (
2443 fd => IO::AIO::poll_fileno, 2898 reentrant => 0,
2444 poll => 'r',
2445 prio => 5,
2446 data => WF_AUTOCANCEL,
2447 cb => \&IO::AIO::poll_cb,
2448);
2449
2450$WRITE_RUNTIME_WATCHER = Event->timer (
2451 data => WF_AUTOCANCEL, 2899 data => WF_AUTOCANCEL,
2452 after => 0, 2900 fd => IO::AIO::poll_fileno,
2453 interval => 10, 2901 poll => 'r',
2454 cb => sub { 2902 prio => 6,
2455 (Coro::unblock_sub { 2903 cb => \&IO::AIO::poll_cb,
2456 write_runtime 2904 );
2457 or warn "ERROR: unable to write runtime file: $!"; 2905}
2458 })->(); 2906
2459 }, 2907# load additional modules
2460); 2908use cf::pod;
2461 2909
2462END { cf::emergency_save } 2910END { cf::emergency_save }
2463 2911
24641 29121
2465 2913

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