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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.159 by root, Wed Jan 10 22:50:12 2007 UTC

15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use Data::Dumper;
20use Digest::MD5; 21use Digest::MD5;
21use Fcntl; 22use Fcntl;
22use IO::AIO 2.31 (); 23use IO::AIO 2.32 ();
23use YAML::Syck (); 24use YAML::Syck ();
24use Time::HiRes; 25use Time::HiRes;
25 26
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 27use Event; $Event::Eval = 1; # no idea why this is required, but it is
27 28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 32$YAML::Syck::ImplicitUnicode = 1;
30 33
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 35
35our %COMMAND = (); 36our %COMMAND = ();
36our %COMMAND_TIME = (); 37our %COMMAND_TIME = ();
38
39our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 40our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions
38 42
39our @EVENT; 43our @EVENT;
40our $LIBDIR = datadir . "/ext"; 44our $LIBDIR = datadir . "/ext";
41 45
42our $TICK = MAX_TIME * 1e-6; 46our $TICK = MAX_TIME * 1e-6;
47our %CFG; 51our %CFG;
48 52
49our $UPTIME; $UPTIME ||= time; 53our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 54our $RUNTIME;
51 55
56our %PLAYER; # all users
52our %MAP; # all maps 57our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 58our $LINK_MAP; # the special {link} map
54our $RANDOM_MAPS = cf::localdir . "/random"; 59our $RANDOM_MAPS = cf::localdir . "/random";
55our %EXT_CORO; 60
61our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
62our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
56 63
57binmode STDOUT; 64binmode STDOUT;
58binmode STDERR; 65binmode STDERR;
59 66
60# read virtual server time, if available 67# read virtual server time, if available
105=item %cf::CFG 112=item %cf::CFG
106 113
107Configuration for the server, loaded from C</etc/crossfire/config>, or 114Configuration for the server, loaded from C</etc/crossfire/config>, or
108from wherever your confdir points to. 115from wherever your confdir points to.
109 116
117=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
118
119These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
120or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
121processing has been done. Call C<< ->wait >> on them to maximise the
122window of cpu time available, or simply to synchronise to the server tick.
123
110=back 124=back
111 125
112=cut 126=cut
113 127
114BEGIN { 128BEGIN {
117 utf8::encode $msg; 131 utf8::encode $msg;
118 132
119 $msg .= "\n" 133 $msg .= "\n"
120 unless $msg =~ /\n$/; 134 unless $msg =~ /\n$/;
121 135
122 LOG llevError, "cfperl: $msg"; 136 LOG llevError, $msg;
123 }; 137 };
124} 138}
125 139
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 140@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 141@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 159
146$Event::DIED = sub { 160$Event::DIED = sub {
147 warn "error in event callback: @_"; 161 warn "error in event callback: @_";
148}; 162};
149 163
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 164=head2 UTILITY FUNCTIONS
155 165
156=over 4 166=over 4
157 167
168=item dumpval $ref
169
158=cut 170=cut
171
172sub dumpval {
173 eval {
174 local $SIG{__DIE__};
175 my $d;
176 if (1) {
177 $d = new Data::Dumper([$_[0]], ["*var"]);
178 $d->Terse(1);
179 $d->Indent(2);
180 $d->Quotekeys(0);
181 $d->Useqq(1);
182 #$d->Bless(...);
183 $d->Seen($_[1]) if @_ > 1;
184 $d = $d->Dump();
185 }
186 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
187 $d
188 } || "[unable to dump $_[0]: '$@']";
189}
159 190
160use JSON::Syck (); # TODO# replace by JSON::PC once working 191use JSON::Syck (); # TODO# replace by JSON::PC once working
161 192
162=item $ref = cf::from_json $json 193=item $ref = cf::from_json $json
163 194
179sub to_json($) { 210sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 211 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 212 JSON::Syck::Dump $_[0]
182} 213}
183 214
184=item my $guard = cf::guard { BLOCK }
185
186Run the given callback when the guard object gets destroyed (useful for
187coroutine cancellations).
188
189You can call C<< ->cancel >> on the guard object to stop the block from
190being executed.
191
192=cut
193
194sub guard(&) {
195 bless \(my $cb = $_[0]), cf::guard::;
196}
197
198sub cf::guard::cancel {
199 ${$_[0]} = sub { };
200}
201
202sub cf::guard::DESTROY {
203 ${$_[0]}->();
204}
205
206=item cf::lock_wait $string 215=item cf::lock_wait $string
207 216
208Wait until the given lock is available. See cf::lock_acquire. 217Wait until the given lock is available. See cf::lock_acquire.
209 218
210=item my $lock = cf::lock_acquire $string 219=item my $lock = cf::lock_acquire $string
211 220
212Wait until the given lock is available and then acquires it and returns 221Wait until the given lock is available and then acquires it and returns
213a guard object. If the guard object gets destroyed (goes out of scope, 222a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214for example when the coroutine gets canceled), the lock is automatically 223for example when the coroutine gets canceled), the lock is automatically
215returned. 224returned.
216 225
217Lock names should begin with a unique identifier (for example, cf::map::find 226Lock names should begin with a unique identifier (for example, cf::map::find
218uses map_find and cf::map::load uses map_load). 227uses map_find and cf::map::load uses map_load).
237 # wait, to be sure we are not locked 246 # wait, to be sure we are not locked
238 lock_wait $key; 247 lock_wait $key;
239 248
240 $LOCK{$key} = []; 249 $LOCK{$key} = [];
241 250
242 cf::guard { 251 Coro::guard {
243 # wake up all waiters, to be on the safe side 252 # wake up all waiters, to be on the safe side
244 $_->ready for @{ delete $LOCK{$key} }; 253 $_->ready for @{ delete $LOCK{$key} };
245 } 254 }
246} 255}
247 256
248=item cf::async { BLOCK }
249
250Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251error instead of exiting the server in case of a problem.
252
253=cut
254
255sub async(&) {
256 my ($cb) = @_;
257
258 Coro::async {
259 eval { $cb->() };
260 warn $@ if $@;
261 }
262}
263
264sub freeze_mainloop { 257sub freeze_mainloop {
265 return unless $TICK_WATCHER->is_active; 258 return unless $TICK_WATCHER->is_active;
266 259
267 my $guard = guard { $TICK_WATCHER->start }; 260 my $guard = Coro::guard { $TICK_WATCHER->start };
268 $TICK_WATCHER->stop; 261 $TICK_WATCHER->stop;
269 $guard 262 $guard
270} 263}
264
265=item cf::async { BLOCK }
266
267Currently the same as Coro::async_pool, meaning you cannot use
268C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
269thing you are allowed to do is call C<prio> on it.
270
271=cut
272
273BEGIN { *async = \&Coro::async_pool }
271 274
272=item cf::sync_job { BLOCK } 275=item cf::sync_job { BLOCK }
273 276
274The design of crossfire+ requires that the main coro ($Coro::main) is 277The design of crossfire+ requires that the main coro ($Coro::main) is
275always able to handle events or runnable, as crossfire+ is only partly 278always able to handle events or runnable, as crossfire+ is only partly
294 my $freeze_guard = freeze_mainloop; 297 my $freeze_guard = freeze_mainloop;
295 298
296 my $busy = 1; 299 my $busy = 1;
297 my @res; 300 my @res;
298 301
299 (Coro::async { 302 (async {
300 @res = eval { $job->() }; 303 @res = eval { $job->() };
301 warn $@ if $@; 304 warn $@ if $@;
302 undef $busy; 305 undef $busy;
303 })->prio (Coro::PRIO_MAX); 306 })->prio (Coro::PRIO_MAX);
304 307
305 while ($busy) { 308 while ($busy) {
306 Coro::cede_notself; 309 Coro::cede or Event::one_event;
307 Event::one_event unless Coro::nready;
308 } 310 }
309 311
310 wantarray ? @res : $res[0] 312 wantarray ? @res : $res[0]
311 } else { 313 } else {
312 # we are in another coroutine, how wonderful, everything just works 314 # we are in another coroutine, how wonderful, everything just works
313 315
314 $job->() 316 $job->()
315 } 317 }
316} 318}
317 319
318=item $coro = cf::coro { BLOCK } 320=item $coro = cf::async_ext { BLOCK }
319 321
320Creates and returns a new coro. This coro is automcatially being canceled 322Like async, but this coro is automatically being canceled when the
321when the extension calling this is being unloaded. 323extension calling this is being unloaded.
322 324
323=cut 325=cut
324 326
325sub coro(&) { 327sub async_ext(&) {
326 my $cb = shift; 328 my $cb = shift;
327 329
328 my $coro = &cf::async ($cb); 330 my $coro = &Coro::async ($cb);
329 331
330 $coro->on_destroy (sub { 332 $coro->on_destroy (sub {
331 delete $EXT_CORO{$coro+0}; 333 delete $EXT_CORO{$coro+0};
332 }); 334 });
333 $EXT_CORO{$coro+0} = $coro; 335 $EXT_CORO{$coro+0} = $coro;
362=cut 364=cut
363 365
364############################################################################# 366#############################################################################
365 367
366package cf::path; 368package cf::path;
369
370use overload
371 '""' => \&as_string;
372
373# used to convert map paths into valid unix filenames by repalcing / by ∕
374our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
367 375
368sub new { 376sub new {
369 my ($class, $path, $base) = @_; 377 my ($class, $path, $base) = @_;
370 378
371 $path = $path->as_string if ref $path; 379 $path = $path->as_string if ref $path;
377 # ?random/... random maps 385 # ?random/... random maps
378 # /! non-realised random map exit 386 # /! non-realised random map exit
379 # /... normal maps 387 # /... normal maps
380 # ~/... per-player maps without a specific player (DO NOT USE) 388 # ~/... per-player maps without a specific player (DO NOT USE)
381 # ~user/... per-player map of a specific user 389 # ~user/... per-player map of a specific user
390
391 $path =~ s/$PATH_SEP/\//go;
382 392
383 if ($path =~ /^{/) { 393 if ($path =~ /^{/) {
384 # fine as it is 394 # fine as it is
385 } elsif ($path =~ s{^\?random/}{}) { 395 } elsif ($path =~ s{^\?random/}{}) {
386 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 396 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
435# } 445# }
436} 446}
437 447
438# escape the /'s in the path 448# escape the /'s in the path
439sub _escaped_path { 449sub _escaped_path {
440 # ∕ is U+2215
441 (my $path = $_[0]{path}) =~ s/\///g; 450 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
442 $path 451 $path
443} 452}
444 453
445# the original (read-only) location 454# the original (read-only) location
446sub load_path { 455sub load_path {
934=cut 943=cut
935 944
936sub register_extcmd { 945sub register_extcmd {
937 my ($name, $cb) = @_; 946 my ($name, $cb) = @_;
938 947
939 my $caller = caller;
940 #warn "registering extcmd '$name' to '$caller'";
941
942 $EXTCMD{$name} = [$cb, $caller]; 948 $EXTCMD{$name} = $cb;
943} 949}
944 950
945cf::player->attach ( 951cf::player->attach (
946 on_command => sub { 952 on_command => sub {
947 my ($pl, $name, $params) = @_; 953 my ($pl, $name, $params) = @_;
960 966
961 my $msg = eval { from_json $buf }; 967 my $msg = eval { from_json $buf };
962 968
963 if (ref $msg) { 969 if (ref $msg) {
964 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 970 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965 if (my %reply = $cb->[0]->($pl, $msg)) { 971 if (my %reply = $cb->($pl, $msg)) {
966 $pl->ext_reply ($msg->{msgid}, %reply); 972 $pl->ext_reply ($msg->{msgid}, %reply);
967 } 973 }
968 } 974 }
969 } else { 975 } else {
970 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 976 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
972 978
973 cf::override; 979 cf::override;
974 }, 980 },
975); 981);
976 982
977sub register {
978 my ($base, $pkg) = @_;
979
980 #TODO
981}
982
983sub load_extension { 983sub load_extension {
984 my ($path) = @_; 984 my ($path) = @_;
985 985
986 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 986 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
987 my $base = $1; 987 my $base = $1;
1002 1002
1003 eval $source 1003 eval $source
1004 or die $@ ? "$path: $@\n" 1004 or die $@ ? "$path: $@\n"
1005 : "extension disabled.\n"; 1005 : "extension disabled.\n";
1006 1006
1007 push @exts, $pkg; 1007 push @EXTS, $pkg;
1008 $ext_pkg{$base} = $pkg;
1009
1010# no strict 'refs';
1011# @{"$pkg\::ISA"} = ext::;
1012
1013 register $base, $pkg;
1014}
1015
1016sub unload_extension {
1017 my ($pkg) = @_;
1018
1019 warn "removing extension $pkg\n";
1020
1021 # remove hooks
1022 #TODO
1023# for my $idx (0 .. $#PLUGIN_EVENT) {
1024# delete $hook[$idx]{$pkg};
1025# }
1026
1027 # remove commands
1028 for my $name (keys %COMMAND) {
1029 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031 if (@cb) {
1032 $COMMAND{$name} = \@cb;
1033 } else {
1034 delete $COMMAND{$name};
1035 }
1036 }
1037
1038 # remove extcmds
1039 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040 delete $EXTCMD{$name};
1041 }
1042
1043 if (my $cb = $pkg->can ("unload")) {
1044 eval {
1045 $cb->($pkg);
1046 1
1047 } or warn "$pkg unloaded, but with errors: $@";
1048 }
1049
1050 Symbol::delete_package $pkg;
1051} 1008}
1052 1009
1053sub load_extensions { 1010sub load_extensions {
1054 for my $ext (<$LIBDIR/*.ext>) { 1011 for my $ext (<$LIBDIR/*.ext>) {
1055 next unless -r $ext; 1012 next unless -r $ext;
1073}; 1030};
1074 1031
1075cf::map->attach (prio => -10000, package => cf::mapsupport::); 1032cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076 1033
1077############################################################################# 1034#############################################################################
1078# load/save perl data associated with player->ob objects
1079
1080sub all_objects(@) {
1081 @_, map all_objects ($_->inv), @_
1082}
1083
1084# TODO: compatibility cruft, remove when no longer needed
1085cf::player->attach (
1086 on_load => sub {
1087 my ($pl, $path) = @_;
1088
1089 for my $o (all_objects $pl->ob) {
1090 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091 $o->set_ob_key_value ("_perl_data");
1092
1093 %$o = %{ Storable::thaw pack "H*", $value };
1094 }
1095 }
1096 },
1097);
1098
1099#############################################################################
1100 1035
1101=head2 CORE EXTENSIONS 1036=head2 CORE EXTENSIONS
1102 1037
1103Functions and methods that extend core crossfire objects. 1038Functions and methods that extend core crossfire objects.
1104 1039
1040=cut
1041
1042package cf::player;
1043
1044use Coro::AIO;
1045
1105=head3 cf::player 1046=head3 cf::player
1106 1047
1107=over 4 1048=over 4
1108 1049
1109=item cf::player::exists $login 1050=item cf::player::find $login
1110 1051
1111Returns true when the given account exists. 1052Returns the given player object, loading it if necessary (might block).
1112 1053
1113=cut 1054=cut
1114 1055
1115sub cf::player::exists($) { 1056sub playerdir($) {
1116 cf::player::find $_[0] 1057 cf::localdir
1117 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 1058 . "/"
1059 . cf::playerdir
1060 . "/"
1061 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1062}
1063
1064sub path($) {
1065 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066
1067 (playerdir $login) . "/$login.pl"
1068}
1069
1070sub find_active($) {
1071 $cf::PLAYER{$_[0]}
1072 and $cf::PLAYER{$_[0]}->active
1073 and $cf::PLAYER{$_[0]}
1074}
1075
1076sub exists($) {
1077 my ($login) = @_;
1078
1079 $cf::PLAYER{$login}
1080 or cf::sync_job { !aio_stat $login }
1081}
1082
1083sub find($) {
1084 return $cf::PLAYER{$_[0]} || do {
1085 my $login = $_[0];
1086
1087 my $guard = cf::lock_acquire "user_find:$login";
1088
1089 $cf::PLAYER{$_[0]} || do {
1090 my $pl = load_pl path $login
1091 or return;
1092 $cf::PLAYER{$login} = $pl
1093 }
1094 }
1095}
1096
1097sub save($) {
1098 my ($pl) = @_;
1099
1100 return if $pl->{deny_save};
1101
1102 my $path = path $pl;
1103 my $guard = cf::lock_acquire "user_save:$path";
1104
1105 return if $pl->{deny_save};
1106
1107 aio_mkdir playerdir $pl, 0770;
1108 $pl->{last_save} = $cf::RUNTIME;
1109
1110 $pl->save_pl ($path);
1111 Coro::cede;
1112}
1113
1114sub new($) {
1115 my ($login) = @_;
1116
1117 my $self = create;
1118
1119 $self->ob->name ($login);
1120 $self->{deny_save} = 1;
1121
1122 $cf::PLAYER{$login} = $self;
1123
1124 $self
1125}
1126
1127=item $pl->quit_character
1128
1129Nukes the player without looking back. If logged in, the connection will
1130be destroyed. May block for a long time.
1131
1132=cut
1133
1134sub quit_character {
1135 my ($pl) = @_;
1136
1137 $pl->{deny_save} = 1;
1138 $pl->password ("*"); # this should lock out the player until we nuked the dir
1139
1140 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1141 $pl->deactivate;
1142 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1143 $pl->ns->destroy if $pl->ns;
1144
1145 my $path = playerdir $pl;
1146 my $temp = "$path~$cf::RUNTIME~deleting~";
1147 aio_rename $path, $temp;
1148 delete $cf::PLAYER{$pl->ob->name};
1149 $pl->destroy;
1150 IO::AIO::aio_rmtree $temp;
1151}
1152
1153=item cf::player::list_logins
1154
1155Returns am arrayref of all valid playernames in the system, can take a
1156while and may block, so not sync_job-capable, ever.
1157
1158=cut
1159
1160sub list_logins {
1161 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1162 or return [];
1163
1164 my @logins;
1165
1166 for my $login (@$dirs) {
1167 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1168 aio_read $fh, 0, 512, my $buf, 0 or next;
1169 $buf !~ /^password -------------$/m or next; # official not-valid tag
1170
1171 utf8::decode $login;
1172 push @logins, $login;
1173 }
1174
1175 \@logins
1176}
1177
1178=item $player->maps
1179
1180Returns an arrayref of cf::path's of all maps that are private for this
1181player. May block.
1182
1183=cut
1184
1185sub maps($) {
1186 my ($pl) = @_;
1187
1188 my $files = aio_readdir playerdir $pl
1189 or return;
1190
1191 my @paths;
1192
1193 for (@$files) {
1194 utf8::decode $_;
1195 next if /\.(?:pl|pst)$/;
1196 next unless /^$PATH_SEP/o;
1197
1198 push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1199 }
1200
1201 \@paths
1118} 1202}
1119 1203
1120=item $player->ext_reply ($msgid, $msgtype, %msg) 1204=item $player->ext_reply ($msgid, $msgtype, %msg)
1121 1205
1122Sends an ext reply to the player. 1206Sends an ext reply to the player.
1123 1207
1124=cut 1208=cut
1125 1209
1126sub cf::player::ext_reply($$$%) { 1210sub ext_reply($$$%) {
1127 my ($self, $id, %msg) = @_; 1211 my ($self, $id, %msg) = @_;
1128 1212
1129 $msg{msgid} = $id; 1213 $msg{msgid} = $id;
1130 1214
1131 $self->send ("ext " . to_json \%msg); 1215 $self->send ("ext " . cf::to_json \%msg);
1132} 1216}
1217
1218package cf;
1133 1219
1134=back 1220=back
1135 1221
1136 1222
1137=head3 cf::map 1223=head3 cf::map
1184 or return; 1270 or return;
1185 1271
1186 my $map = cf::map::new 1272 my $map = cf::map::new
1187 or return; 1273 or return;
1188 1274
1275 # for better error messages only, will be overwritten
1276 $map->path ($path);
1277
1189 $map->load_header ($path) 1278 $map->load_header ($path)
1190 or return; 1279 or return;
1191 1280
1192 $map->{load_path} = $path; 1281 $map->{load_path} = $path;
1193 1282
1300 Coro::cede; 1389 Coro::cede;
1301 1390
1302 $self->in_memory (cf::MAP_IN_MEMORY); 1391 $self->in_memory (cf::MAP_IN_MEMORY);
1303} 1392}
1304 1393
1394# find and load all maps in the 3x3 area around a map
1395sub load_diag {
1396 my ($map) = @_;
1397
1398 my @diag; # diagonal neighbours
1399
1400 for (0 .. 3) {
1401 my $neigh = $map->tile_path ($_)
1402 or next;
1403 $neigh = find $neigh, $map
1404 or next;
1405 $neigh->load;
1406
1407 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1408 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1409 }
1410
1411 for (@diag) {
1412 my $neigh = find @$_
1413 or next;
1414 $neigh->load;
1415 }
1416}
1417
1305sub find_sync { 1418sub find_sync {
1306 my ($path, $origin) = @_; 1419 my ($path, $origin) = @_;
1307 1420
1308 cf::sync_job { cf::map::find $path, $origin } 1421 cf::sync_job { find $path, $origin }
1309} 1422}
1310 1423
1311sub do_load_sync { 1424sub do_load_sync {
1312 my ($map) = @_; 1425 my ($map) = @_;
1313 1426
1314 cf::sync_job { $map->load }; 1427 cf::sync_job { $map->load };
1315} 1428}
1316 1429
1430our %MAP_PREFETCH;
1431our $MAP_PREFETCHER = Coro::async {
1432 while () {
1433 while (%MAP_PREFETCH) {
1434 my $key = each %MAP_PREFETCH
1435 or next;
1436 my $path = delete $MAP_PREFETCH{$key};
1437
1438 my $map = find $path
1439 or next;
1440 $map->load;
1441 }
1442 Coro::schedule;
1443 }
1444};
1445
1446sub find_async {
1447 my ($path, $origin) = @_;
1448
1449 $path = new cf::path $path, $origin && $origin->path;
1450 my $key = $path->as_string;
1451
1452 if (my $map = $cf::MAP{$key}) {
1453 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454 }
1455
1456 $MAP_PREFETCH{$key} = $path;
1457 $MAP_PREFETCHER->ready;
1458
1459 ()
1460}
1461
1317sub save { 1462sub save {
1318 my ($self) = @_; 1463 my ($self) = @_;
1319 1464
1465 my $lock = cf::lock_acquire "map_data:" . $self->path;
1466
1320 $self->{last_save} = $cf::RUNTIME; 1467 $self->{last_save} = $cf::RUNTIME;
1321 1468
1322 return unless $self->dirty; 1469 return unless $self->dirty;
1323 1470
1324 my $save = $self->{path}->save_path; utf8::encode $save; 1471 my $save = $self->{path}->save_path; utf8::encode $save;
1327 $self->{load_path} = $save; 1474 $self->{load_path} = $save;
1328 1475
1329 return if $self->{deny_save}; 1476 return if $self->{deny_save};
1330 1477
1331 local $self->{last_access} = $self->last_access;#d# 1478 local $self->{last_access} = $self->last_access;#d#
1479
1480 cf::async {
1481 $_->contr->save for $self->players;
1482 };
1332 1483
1333 if ($uniq) { 1484 if ($uniq) {
1334 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1485 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335 $self->save_objects ($uniq, cf::IO_UNIQUES); 1486 $self->save_objects ($uniq, cf::IO_UNIQUES);
1336 } else { 1487 } else {
1342 my ($self) = @_; 1493 my ($self) = @_;
1343 1494
1344 # save first because save cedes 1495 # save first because save cedes
1345 $self->save; 1496 $self->save;
1346 1497
1498 my $lock = cf::lock_acquire "map_data:" . $self->path;
1499
1347 return if $self->players; 1500 return if $self->players;
1348 return if $self->in_memory != cf::MAP_IN_MEMORY; 1501 return if $self->in_memory != cf::MAP_IN_MEMORY;
1349 return if $self->{deny_save}; 1502 return if $self->{deny_save};
1350 1503
1351 $self->clear; 1504 $self->clear;
1393} 1546}
1394 1547
1395sub reset { 1548sub reset {
1396 my ($self) = @_; 1549 my ($self) = @_;
1397 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1398 return if $self->players; 1553 return if $self->players;
1399 return if $self->{path}{user_rel};#d# 1554 return if $self->{path}{user_rel};#d#
1400 1555
1401 warn "resetting map ", $self->path;#d# 1556 warn "resetting map ", $self->path;#d#
1402 1557
1427 } 1582 }
1428 1583
1429 $map 1584 $map
1430} 1585}
1431 1586
1432sub emergency_save { 1587=item cf::map::unique_maps
1433 my $freeze_guard = cf::freeze_mainloop;
1434 1588
1435 warn "enter emergency map save\n"; 1589Returns an arrayref of cf::path's of all shared maps that have
1590instantiated unique items. May block.
1436 1591
1437 cf::sync_job { 1592=cut
1438 warn "begin emergency map save\n"; 1593
1439 $_->save for values %cf::MAP; 1594sub unique_maps() {
1595 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1596 or return;
1597
1598 my @paths;
1599
1600 for (@$files) {
1601 utf8::decode $_;
1602 next if /\.pst$/;
1603 next unless /^$PATH_SEP/o;
1604
1605 push @paths, new cf::path $_;
1440 }; 1606 }
1441 1607
1442 warn "end emergency map save\n"; 1608 \@paths
1443} 1609}
1444 1610
1445package cf; 1611package cf;
1446 1612
1447=back 1613=back
1448 1614
1615=head3 cf::object
1616
1617=cut
1618
1619package cf::object;
1620
1621=over 4
1622
1623=item $ob->inv_recursive
1624
1625Returns the inventory of the object _and_ their inventories, recursively.
1626
1627=cut
1628
1629sub inv_recursive_;
1630sub inv_recursive_ {
1631 map { $_, inv_recursive_ $_->inv } @_
1632}
1633
1634sub inv_recursive {
1635 inv_recursive_ inv $_[0]
1636}
1637
1638package cf;
1639
1640=back
1449 1641
1450=head3 cf::object::player 1642=head3 cf::object::player
1451 1643
1452=over 4 1644=over 4
1453 1645
1545 # use -1 or undef as default coordinates, not 0, 0 1737 # use -1 or undef as default coordinates, not 0, 0
1546 ($x, $y) = ($map->enter_x, $map->enter_y) 1738 ($x, $y) = ($map->enter_x, $map->enter_y)
1547 if $x <=0 && $y <= 0; 1739 if $x <=0 && $y <= 0;
1548 1740
1549 $map->load; 1741 $map->load;
1742 $map->load_diag;
1550 1743
1744 return unless $self->contr->active;
1551 $self->activate_recursive; 1745 $self->activate_recursive;
1552 $self->enter_map ($map, $x, $y); 1746 $self->enter_map ($map, $x, $y);
1553} 1747}
1554 1748
1555cf::player->attach ( 1749cf::player->attach (
1568 1762
1569 # try to abort aborted map switching on player login :) 1763 # try to abort aborted map switching on player login :)
1570 # should happen only on crashes 1764 # should happen only on crashes
1571 if ($pl->ob->{_link_pos}) { 1765 if ($pl->ob->{_link_pos}) {
1572 $pl->ob->enter_link; 1766 $pl->ob->enter_link;
1573 cf::async { 1767 (async {
1574 # we need this sleep as the login has a concurrent enter_exit running 1768 # we need this sleep as the login has a concurrent enter_exit running
1575 # and this sleep increases chances of the player not ending up in scorn 1769 # and this sleep increases chances of the player not ending up in scorn
1770 $pl->ob->reply (undef,
1771 "There was an internal problem at your last logout, "
1772 . "the server will try to bring you to your intended destination in a second.",
1773 cf::NDI_RED);
1576 Coro::Timer::sleep 1; 1774 Coro::Timer::sleep 1;
1577 $pl->ob->leave_link; 1775 $pl->ob->leave_link;
1578 }; 1776 })->prio (2);
1579 } 1777 }
1580 }, 1778 },
1581); 1779);
1582 1780
1583=item $player_object->goto_map ($path, $x, $y) 1781=item $player_object->goto ($path, $x, $y)
1584 1782
1585=cut 1783=cut
1586 1784
1587sub cf::object::player::goto_map { 1785sub cf::object::player::goto {
1588 my ($self, $path, $x, $y) = @_; 1786 my ($self, $path, $x, $y) = @_;
1589 1787
1788 $path = new cf::path $path;
1789
1590 $self->enter_link; 1790 $self->enter_link;
1591 1791
1592 (cf::async { 1792 (async {
1593 $path = new cf::path $path;
1594
1595 my $map = cf::map::find $path->as_string; 1793 my $map = cf::map::find $path->as_string;
1596 $map = $map->customise_for ($self) if $map; 1794 $map = $map->customise_for ($self) if $map;
1597 1795
1598# warn "entering ", $map->path, " at ($x, $y)\n" 1796# warn "entering ", $map->path, " at ($x, $y)\n"
1599# if $map; 1797# if $map;
1600 1798
1601 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1799 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1602 1800
1603 $self->leave_link ($map, $x, $y); 1801 $self->leave_link ($map, $x, $y);
1604 })->prio (1); 1802 })->prio (1);
1605} 1803}
1606 1804
1659 1857
1660 return unless $self->type == cf::PLAYER; 1858 return unless $self->type == cf::PLAYER;
1661 1859
1662 $self->enter_link; 1860 $self->enter_link;
1663 1861
1664 (cf::async { 1862 (async {
1665 $self->deactivate_recursive; # just to be sure 1863 $self->deactivate_recursive; # just to be sure
1666 unless (eval { 1864 unless (eval {
1667 prepare_random_map $exit 1865 prepare_random_map $exit
1668 if $exit->slaying eq "/!"; 1866 if $exit->slaying eq "/!";
1669 1867
1670 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; 1868 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1869 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1672 1870
1673 1; 1871 1;
1674 }) { 1872 }) {
1675 $self->message ("Something went wrong deep within the crossfire server. " 1873 $self->message ("Something went wrong deep within the crossfire server. "
1676 . "I'll try to bring you back to the map you were before. " 1874 . "I'll try to bring you back to the map you were before. "
1677 . "Please report this to the dungeon master", 1875 . "Please report this to the dungeon master!",
1678 cf::NDI_UNIQUE | cf::NDI_RED); 1876 cf::NDI_UNIQUE | cf::NDI_RED);
1679 1877
1680 warn "ERROR in enter_exit: $@"; 1878 warn "ERROR in enter_exit: $@";
1681 $self->leave_link; 1879 $self->leave_link;
1682 } 1880 }
1750 } 1948 }
1751 } 1949 }
1752 }, 1950 },
1753); 1951);
1754 1952
1755=item $client->coro (\&cb) 1953=item $client->async (\&cb)
1756 1954
1757Create a new coroutine, running the specified callback. The coroutine will 1955Create a new coroutine, running the specified callback. The coroutine will
1758be automatically cancelled when the client gets destroyed (e.g. on logout, 1956be automatically cancelled when the client gets destroyed (e.g. on logout,
1759or loss of connection). 1957or loss of connection).
1760 1958
1761=cut 1959=cut
1762 1960
1763sub cf::client::coro { 1961sub cf::client::async {
1764 my ($self, $cb) = @_; 1962 my ($self, $cb) = @_;
1765 1963
1766 my $coro = &cf::async ($cb); 1964 my $coro = &Coro::async ($cb);
1767 1965
1768 $coro->on_destroy (sub { 1966 $coro->on_destroy (sub {
1769 delete $self->{_coro}{$coro+0}; 1967 delete $self->{_coro}{$coro+0};
1770 }); 1968 });
1771 1969
2009 local $/; 2207 local $/;
2010 *CFG = YAML::Syck::Load <$fh>; 2208 *CFG = YAML::Syck::Load <$fh>;
2011 2209
2012 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2210 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013 2211
2212 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2213 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2214
2014 if (exists $CFG{mlockall}) { 2215 if (exists $CFG{mlockall}) {
2015 eval { 2216 eval {
2016 $CFG{mlockall} ? &mlockall : &munlockall 2217 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017 and die "WARNING: m(un)lockall failed: $!\n"; 2218 and die "WARNING: m(un)lockall failed: $!\n";
2018 }; 2219 };
2019 warn $@ if $@; 2220 warn $@ if $@;
2020 } 2221 }
2021} 2222}
2022 2223
2023sub main { 2224sub main {
2024 # we must not ever block the main coroutine 2225 # we must not ever block the main coroutine
2025 local $Coro::idle = sub { 2226 local $Coro::idle = sub {
2026 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2227 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027 (Coro::unblock_sub {
2028 Event::one_event; 2228 async { Event::one_event };
2029 })->();
2030 }; 2229 };
2031 2230
2032 cfg_load; 2231 cfg_load;
2033 db_load; 2232 db_load;
2034 load_extensions; 2233 load_extensions;
2035 Event::loop; 2234 Event::loop;
2036} 2235}
2037 2236
2038############################################################################# 2237#############################################################################
2039# initialisation 2238# initialisation and cleanup
2239
2240# install some emergency cleanup handlers
2241BEGIN {
2242 for my $signal (qw(INT HUP TERM)) {
2243 Event->signal (
2244 data => WF_AUTOCANCEL,
2245 signal => $signal,
2246 cb => sub {
2247 cf::cleanup "SIG$signal";
2248 },
2249 );
2250 }
2251}
2252
2253sub emergency_save() {
2254 my $freeze_guard = cf::freeze_mainloop;
2255
2256 warn "enter emergency perl save\n";
2257
2258 cf::sync_job {
2259 # use a peculiar iteration method to avoid tripping on perl
2260 # refcount bugs in for. also avoids problems with players
2261 # and maps saved/Destroyed asynchronously.
2262 warn "begin emergency player save\n";
2263 for my $login (keys %cf::PLAYER) {
2264 my $pl = $cf::PLAYER{$login} or next;
2265 $pl->valid or next;
2266 $pl->save;
2267 }
2268 warn "end emergency player save\n";
2269
2270 warn "begin emergency map save\n";
2271 for my $path (keys %cf::MAP) {
2272 my $map = $cf::MAP{$path} or next;
2273 $map->valid or next;
2274 $map->save;
2275 }
2276 warn "end emergency map save\n";
2277 };
2278
2279 warn "leave emergency perl save\n";
2280}
2040 2281
2041sub reload() { 2282sub reload() {
2042 # can/must only be called in main 2283 # can/must only be called in main
2043 if ($Coro::current != $Coro::main) { 2284 if ($Coro::current != $Coro::main) {
2044 warn "can only reload from main coroutine\n"; 2285 warn "can only reload from main coroutine\n";
2045 return; 2286 return;
2046 } 2287 }
2047 2288
2048 warn "reloading..."; 2289 warn "reloading...";
2049 2290
2291 warn "freezing server";
2050 my $guard = freeze_mainloop; 2292 my $guard = freeze_mainloop;
2051 cf::emergency_save; 2293 cf::emergency_save;
2052 2294
2295 warn "sync database to disk";
2296 cf::db_sync;
2297 IO::AIO::flush;
2298
2053 eval { 2299 eval {
2054 # if anything goes wrong in here, we should simply crash as we already saved 2300 # if anything goes wrong in here, we should simply crash as we already saved
2055 2301
2056 # cancel all watchers 2302 warn "cancel all watchers";
2057 for (Event::all_watchers) { 2303 for (Event::all_watchers) {
2058 $_->cancel if $_->data & WF_AUTOCANCEL; 2304 $_->cancel if $_->data & WF_AUTOCANCEL;
2059 } 2305 }
2060 2306
2061 # cancel all extension coros 2307 warn "cancel all extension coros";
2062 $_->cancel for values %EXT_CORO; 2308 $_->cancel for values %EXT_CORO;
2063 %EXT_CORO = (); 2309 %EXT_CORO = ();
2064 2310
2311 warn "remove commands";
2312 %COMMAND = ();
2313
2314 warn "remove ext commands";
2315 %EXTCMD = ();
2316
2065 # unload all extensions 2317 warn "unload/nuke all extensions";
2066 for (@exts) { 2318 for my $pkg (@EXTS) {
2067 warn "unloading <$_>"; 2319 warn "unloading <$pkg>";
2068 unload_extension $_; 2320
2321 if (my $cb = $pkg->can ("unload")) {
2322 eval {
2323 $cb->($pkg);
2324 1
2325 } or warn "$pkg unloaded, but with errors: $@";
2069 } 2326 }
2070 2327
2328 Symbol::delete_package $pkg;
2329 }
2330
2071 # unload all modules loaded from $LIBDIR 2331 warn "unload all perl modules loaded from $LIBDIR";
2072 while (my ($k, $v) = each %INC) { 2332 while (my ($k, $v) = each %INC) {
2073 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2333 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074 2334
2075 warn "removing <$k>"; 2335 warn "removing <$k>";
2076 delete $INC{$k}; 2336 delete $INC{$k};
2083 } 2343 }
2084 2344
2085 Symbol::delete_package $k; 2345 Symbol::delete_package $k;
2086 } 2346 }
2087 2347
2088 # sync database to disk
2089 cf::db_sync;
2090 IO::AIO::flush;
2091
2092 # get rid of safe::, as good as possible 2348 warn "get rid of safe::, as good as possible";
2093 Symbol::delete_package "safe::$_" 2349 Symbol::delete_package "safe::$_"
2094 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2350 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095 2351
2096 # remove register_script_function callbacks
2097 # TODO
2098
2099 # unload cf.pm "a bit" 2352 warn "unload cf.pm \"a bit\"";
2100 delete $INC{"cf.pm"}; 2353 delete $INC{"cf.pm"};
2101 2354
2102 # don't, removes xs symbols, too, 2355 # don't, removes xs symbols, too,
2103 # and global variables created in xs 2356 # and global variables created in xs
2104 #Symbol::delete_package __PACKAGE__; 2357 #Symbol::delete_package __PACKAGE__;
2105 2358
2106 # reload cf.pm
2107 warn "reloading cf.pm"; 2359 warn "reloading cf.pm";
2108 require cf; 2360 require cf;
2109 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2361 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110 2362
2111 # load config and database again 2363 warn "load config and database again";
2112 cf::cfg_load; 2364 cf::cfg_load;
2113 cf::db_load; 2365 cf::db_load;
2114 2366
2115 # load extensions
2116 warn "load extensions"; 2367 warn "load extensions";
2117 cf::load_extensions; 2368 cf::load_extensions;
2118 2369
2119 # reattach attachments to objects 2370 warn "reattach attachments to objects/players";
2120 warn "reattach";
2121 _global_reattach; 2371 _global_reattach;
2372 warn "reattach attachments to maps";
2373 reattach $_ for values %MAP;
2122 }; 2374 };
2123 2375
2124 if ($@) { 2376 if ($@) {
2125 warn $@; 2377 warn $@;
2126 warn "error while reloading, exiting."; 2378 warn "error while reloading, exiting.";
2127 exit 1; 2379 exit 1;
2128 } 2380 }
2129 2381
2130 warn "reloaded successfully"; 2382 warn "reloaded";
2131}; 2383};
2132 2384
2133############################################################################# 2385#############################################################################
2134 2386
2135unless ($LINK_MAP) { 2387unless ($LINK_MAP) {
2142 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2394 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2395 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2144 2396
2145 # dirty hack because... archetypes are not yet loaded 2397 # dirty hack because... archetypes are not yet loaded
2146 Event->timer ( 2398 Event->timer (
2147 after => 2, 2399 after => 10,
2148 cb => sub { 2400 cb => sub {
2149 $_[0]->w->cancel; 2401 $_[0]->w->cancel;
2150 2402
2151 # provide some exits "home" 2403 # provide some exits "home"
2152 my $exit = cf::object::new "exit"; 2404 my $exit = cf::object::new "exit";
2170 $LINK_MAP->{deny_save} = 1; 2422 $LINK_MAP->{deny_save} = 1;
2171 $LINK_MAP->{deny_reset} = 1; 2423 $LINK_MAP->{deny_reset} = 1;
2172 2424
2173 $cf::MAP{$LINK_MAP->path} = $LINK_MAP; 2425 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174} 2426}
2175
2176register "<global>", __PACKAGE__;
2177 2427
2178register_command "reload" => sub { 2428register_command "reload" => sub {
2179 my ($who, $arg) = @_; 2429 my ($who, $arg) = @_;
2180 2430
2181 if ($who->flag (FLAG_WIZ)) { 2431 if ($who->flag (FLAG_WIZ)) {
2194 data => WF_AUTOCANCEL, 2444 data => WF_AUTOCANCEL,
2195 cb => sub { 2445 cb => sub {
2196 cf::server_tick; # one server iteration 2446 cf::server_tick; # one server iteration
2197 $RUNTIME += $TICK; 2447 $RUNTIME += $TICK;
2198 $NEXT_TICK += $TICK; 2448 $NEXT_TICK += $TICK;
2449
2450 $WAIT_FOR_TICK->broadcast;
2451 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2199 2452
2200 # if we are delayed by four ticks or more, skip them all 2453 # if we are delayed by four ticks or more, skip them all
2201 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2454 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202 2455
2203 $TICK_WATCHER->at ($NEXT_TICK); 2456 $TICK_WATCHER->at ($NEXT_TICK);

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