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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.159 by root, Wed Jan 10 22:50:12 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3; 13use Coro 3.3 ();
14use Coro::Event; 14use Coro::Event;
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 $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 59our $RANDOM_MAPS = cf::localdir . "/random";
56our %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;
57 63
58binmode STDOUT; 64binmode STDOUT;
59binmode STDERR; 65binmode STDERR;
60 66
61# read virtual server time, if available 67# read virtual server time, if available
71mkdir cf::localdir . "/" . cf::uniquedir; 77mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 78mkdir $RANDOM_MAPS;
73 79
74# a special map that is always available 80# a special map that is always available
75our $LINK_MAP; 81our $LINK_MAP;
76 82our $EMERGENCY_POSITION;
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78 83
79############################################################################# 84#############################################################################
80 85
81=head2 GLOBAL VARIABLES 86=head2 GLOBAL VARIABLES
82 87
106 111
107=item %cf::CFG 112=item %cf::CFG
108 113
109Configuration for the server, loaded from C</etc/crossfire/config>, or 114Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 115from wherever your confdir points to.
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.
111 123
112=back 124=back
113 125
114=cut 126=cut
115 127
119 utf8::encode $msg; 131 utf8::encode $msg;
120 132
121 $msg .= "\n" 133 $msg .= "\n"
122 unless $msg =~ /\n$/; 134 unless $msg =~ /\n$/;
123 135
124 LOG llevError, "cfperl: $msg"; 136 LOG llevError, $msg;
125 }; 137 };
126} 138}
127 139
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 140@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 141@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 159
148$Event::DIED = sub { 160$Event::DIED = sub {
149 warn "error in event callback: @_"; 161 warn "error in event callback: @_";
150}; 162};
151 163
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 164=head2 UTILITY FUNCTIONS
157 165
158=over 4 166=over 4
159 167
168=item dumpval $ref
169
160=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}
161 190
162use JSON::Syck (); # TODO# replace by JSON::PC once working 191use JSON::Syck (); # TODO# replace by JSON::PC once working
163 192
164=item $ref = cf::from_json $json 193=item $ref = cf::from_json $json
165 194
180 209
181sub to_json($) { 210sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 211 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 212 JSON::Syck::Dump $_[0]
184} 213}
214
215=item cf::lock_wait $string
216
217Wait until the given lock is available. See cf::lock_acquire.
218
219=item my $lock = cf::lock_acquire $string
220
221Wait until the given lock is available and then acquires it and returns
222a Coro::guard object. If the guard object gets destroyed (goes out of scope,
223for example when the coroutine gets canceled), the lock is automatically
224returned.
225
226Lock names should begin with a unique identifier (for example, cf::map::find
227uses map_find and cf::map::load uses map_load).
228
229=cut
230
231our %LOCK;
232
233sub lock_wait($) {
234 my ($key) = @_;
235
236 # wait for lock, if any
237 while ($LOCK{$key}) {
238 push @{ $LOCK{$key} }, $Coro::current;
239 Coro::schedule;
240 }
241}
242
243sub lock_acquire($) {
244 my ($key) = @_;
245
246 # wait, to be sure we are not locked
247 lock_wait $key;
248
249 $LOCK{$key} = [];
250
251 Coro::guard {
252 # wake up all waiters, to be on the safe side
253 $_->ready for @{ delete $LOCK{$key} };
254 }
255}
256
257sub freeze_mainloop {
258 return unless $TICK_WATCHER->is_active;
259
260 my $guard = Coro::guard { $TICK_WATCHER->start };
261 $TICK_WATCHER->stop;
262 $guard
263}
264
265=item cf::async { BLOCK }
266
267Currently the same as Coro::async_pool, meaning you cannot use
268C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
269thing you are allowed to do is call C<prio> on it.
270
271=cut
272
273BEGIN { *async = \&Coro::async_pool }
185 274
186=item cf::sync_job { BLOCK } 275=item cf::sync_job { BLOCK }
187 276
188The design of crossfire+ requires that the main coro ($Coro::main) is 277The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 278always able to handle events or runnable, as crossfire+ is only partly
203 # this is the main coro, too bad, we have to block 292 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 293 # till the operation succeeds, freezing the server :/
205 294
206 # TODO: use suspend/resume instead 295 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 296 # (but this is cancel-safe)
208 local $FREEZE = 1; 297 my $freeze_guard = freeze_mainloop;
209 298
210 my $busy = 1; 299 my $busy = 1;
211 my @res; 300 my @res;
212 301
213 (Coro::async { 302 (async {
214 @res = eval { $job->() }; 303 @res = eval { $job->() };
215 warn $@ if $@; 304 warn $@ if $@;
216 undef $busy; 305 undef $busy;
217 })->prio (Coro::PRIO_MAX); 306 })->prio (Coro::PRIO_MAX);
218 307
219 while ($busy) { 308 while ($busy) {
220 Coro::cede_notself; 309 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 310 }
223 311
224 wantarray ? @res : $res[0] 312 wantarray ? @res : $res[0]
225 } else { 313 } else {
226 # we are in another coroutine, how wonderful, everything just works 314 # we are in another coroutine, how wonderful, everything just works
227 315
228 $job->() 316 $job->()
229 } 317 }
230} 318}
231 319
232=item $coro = cf::coro { BLOCK } 320=item $coro = cf::async_ext { BLOCK }
233 321
234Creates and returns a new coro. This coro is automcatially being canceled 322Like async, but this coro is automatically being canceled when the
235when the extension calling this is being unloaded. 323extension calling this is being unloaded.
236 324
237=cut 325=cut
238 326
239sub coro(&) { 327sub async_ext(&) {
240 my $cb = shift; 328 my $cb = shift;
241 329
242 my $coro; $coro = async { 330 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 331
249 $coro->on_destroy (sub { 332 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 333 delete $EXT_CORO{$coro+0};
251 }); 334 });
252 $EXT_CORO{$coro+0} = $coro; 335 $EXT_CORO{$coro+0} = $coro;
281=cut 364=cut
282 365
283############################################################################# 366#############################################################################
284 367
285package 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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
286 375
287sub new { 376sub new {
288 my ($class, $path, $base) = @_; 377 my ($class, $path, $base) = @_;
289 378
290 $path = $path->as_string if ref $path; 379 $path = $path->as_string if ref $path;
296 # ?random/... random maps 385 # ?random/... random maps
297 # /! non-realised random map exit 386 # /! non-realised random map exit
298 # /... normal maps 387 # /... normal maps
299 # ~/... per-player maps without a specific player (DO NOT USE) 388 # ~/... per-player maps without a specific player (DO NOT USE)
300 # ~user/... per-player map of a specific user 389 # ~user/... per-player map of a specific user
390
391 $path =~ s/$PATH_SEP/\//go;
301 392
302 if ($path =~ /^{/) { 393 if ($path =~ /^{/) {
303 # fine as it is 394 # fine as it is
304 } elsif ($path =~ s{^\?random/}{}) { 395 } elsif ($path =~ s{^\?random/}{}) {
305 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 396 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
354# } 445# }
355} 446}
356 447
357# escape the /'s in the path 448# escape the /'s in the path
358sub _escaped_path { 449sub _escaped_path {
359 # ∕ is U+2215
360 (my $path = $_[0]{path}) =~ s/\///g; 450 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
361 $path 451 $path
362} 452}
363 453
364# the original (read-only) location 454# the original (read-only) location
365sub load_path { 455sub load_path {
853=cut 943=cut
854 944
855sub register_extcmd { 945sub register_extcmd {
856 my ($name, $cb) = @_; 946 my ($name, $cb) = @_;
857 947
858 my $caller = caller;
859 #warn "registering extcmd '$name' to '$caller'";
860
861 $EXTCMD{$name} = [$cb, $caller]; 948 $EXTCMD{$name} = $cb;
862} 949}
863 950
864cf::player->attach ( 951cf::player->attach (
865 on_command => sub { 952 on_command => sub {
866 my ($pl, $name, $params) = @_; 953 my ($pl, $name, $params) = @_;
879 966
880 my $msg = eval { from_json $buf }; 967 my $msg = eval { from_json $buf };
881 968
882 if (ref $msg) { 969 if (ref $msg) {
883 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 970 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884 if (my %reply = $cb->[0]->($pl, $msg)) { 971 if (my %reply = $cb->($pl, $msg)) {
885 $pl->ext_reply ($msg->{msgid}, %reply); 972 $pl->ext_reply ($msg->{msgid}, %reply);
886 } 973 }
887 } 974 }
888 } else { 975 } else {
889 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 976 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891 978
892 cf::override; 979 cf::override;
893 }, 980 },
894); 981);
895 982
896sub register {
897 my ($base, $pkg) = @_;
898
899 #TODO
900}
901
902sub load_extension { 983sub load_extension {
903 my ($path) = @_; 984 my ($path) = @_;
904 985
905 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 986 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
906 my $base = $1; 987 my $base = $1;
921 1002
922 eval $source 1003 eval $source
923 or die $@ ? "$path: $@\n" 1004 or die $@ ? "$path: $@\n"
924 : "extension disabled.\n"; 1005 : "extension disabled.\n";
925 1006
926 push @exts, $pkg; 1007 push @EXTS, $pkg;
927 $ext_pkg{$base} = $pkg;
928
929# no strict 'refs';
930# @{"$pkg\::ISA"} = ext::;
931
932 register $base, $pkg;
933}
934
935sub unload_extension {
936 my ($pkg) = @_;
937
938 warn "removing extension $pkg\n";
939
940 # remove hooks
941 #TODO
942# for my $idx (0 .. $#PLUGIN_EVENT) {
943# delete $hook[$idx]{$pkg};
944# }
945
946 # remove commands
947 for my $name (keys %COMMAND) {
948 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950 if (@cb) {
951 $COMMAND{$name} = \@cb;
952 } else {
953 delete $COMMAND{$name};
954 }
955 }
956
957 # remove extcmds
958 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959 delete $EXTCMD{$name};
960 }
961
962 if (my $cb = $pkg->can ("unload")) {
963 eval {
964 $cb->($pkg);
965 1
966 } or warn "$pkg unloaded, but with errors: $@";
967 }
968
969 Symbol::delete_package $pkg;
970} 1008}
971 1009
972sub load_extensions { 1010sub load_extensions {
973 for my $ext (<$LIBDIR/*.ext>) { 1011 for my $ext (<$LIBDIR/*.ext>) {
974 next unless -r $ext; 1012 next unless -r $ext;
992}; 1030};
993 1031
994cf::map->attach (prio => -10000, package => cf::mapsupport::); 1032cf::map->attach (prio => -10000, package => cf::mapsupport::);
995 1033
996############################################################################# 1034#############################################################################
997# load/save perl data associated with player->ob objects
998
999sub all_objects(@) {
1000 @_, map all_objects ($_->inv), @_
1001}
1002
1003# TODO: compatibility cruft, remove when no longer needed
1004cf::player->attach (
1005 on_load => sub {
1006 my ($pl, $path) = @_;
1007
1008 for my $o (all_objects $pl->ob) {
1009 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010 $o->set_ob_key_value ("_perl_data");
1011
1012 %$o = %{ Storable::thaw pack "H*", $value };
1013 }
1014 }
1015 },
1016);
1017
1018#############################################################################
1019 1035
1020=head2 CORE EXTENSIONS 1036=head2 CORE EXTENSIONS
1021 1037
1022Functions and methods that extend core crossfire objects. 1038Functions and methods that extend core crossfire objects.
1023 1039
1040=cut
1041
1042package cf::player;
1043
1044use Coro::AIO;
1045
1024=head3 cf::player 1046=head3 cf::player
1025 1047
1026=over 4 1048=over 4
1027 1049
1028=item cf::player::exists $login 1050=item cf::player::find $login
1029 1051
1030Returns true when the given account exists. 1052Returns the given player object, loading it if necessary (might block).
1031 1053
1032=cut 1054=cut
1033 1055
1034sub cf::player::exists($) { 1056sub playerdir($) {
1035 cf::player::find $_[0] 1057 cf::localdir
1036 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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
1037} 1202}
1038 1203
1039=item $player->ext_reply ($msgid, $msgtype, %msg) 1204=item $player->ext_reply ($msgid, $msgtype, %msg)
1040 1205
1041Sends an ext reply to the player. 1206Sends an ext reply to the player.
1042 1207
1043=cut 1208=cut
1044 1209
1045sub cf::player::ext_reply($$$%) { 1210sub ext_reply($$$%) {
1046 my ($self, $id, %msg) = @_; 1211 my ($self, $id, %msg) = @_;
1047 1212
1048 $msg{msgid} = $id; 1213 $msg{msgid} = $id;
1049 1214
1050 $self->send ("ext " . to_json \%msg); 1215 $self->send ("ext " . cf::to_json \%msg);
1051} 1216}
1217
1218package cf;
1052 1219
1053=back 1220=back
1054 1221
1055 1222
1056=head3 cf::map 1223=head3 cf::map
1062package cf::map; 1229package cf::map;
1063 1230
1064use Fcntl; 1231use Fcntl;
1065use Coro::AIO; 1232use Coro::AIO;
1066 1233
1067our $MAX_RESET = 7200; 1234our $MAX_RESET = 3600;
1068our $DEFAULT_RESET = 3600; 1235our $DEFAULT_RESET = 3000;
1069 1236
1070sub generate_random_map { 1237sub generate_random_map {
1071 my ($path, $rmp) = @_; 1238 my ($path, $rmp) = @_;
1072 1239
1073 # mit "rum" bekleckern, nicht 1240 # mit "rum" bekleckern, nicht
1089# and all this just because we cannot iterate over 1256# and all this just because we cannot iterate over
1090# all maps in C++... 1257# all maps in C++...
1091sub change_all_map_light { 1258sub change_all_map_light {
1092 my ($change) = @_; 1259 my ($change) = @_;
1093 1260
1094 $_->change_map_light ($change) for values %cf::MAP; 1261 $_->change_map_light ($change)
1262 for grep $_->outdoor, values %cf::MAP;
1095} 1263}
1096 1264
1097sub try_load_header($) { 1265sub try_load_header($) {
1098 my ($path) = @_; 1266 my ($path) = @_;
1099 1267
1102 or return; 1270 or return;
1103 1271
1104 my $map = cf::map::new 1272 my $map = cf::map::new
1105 or return; 1273 or return;
1106 1274
1275 # for better error messages only, will be overwritten
1276 $map->path ($path);
1277
1107 $map->load_header ($path) 1278 $map->load_header ($path)
1108 or return; 1279 or return;
1109 1280
1110 $map->{load_path} = $path; 1281 $map->{load_path} = $path;
1111 1282
1112 $map 1283 $map
1113} 1284}
1114 1285
1286sub find;
1115sub find_map { 1287sub find {
1116 my ($path, $origin) = @_; 1288 my ($path, $origin) = @_;
1117 1289
1118 #warn "find_map<$path,$origin>\n";#d# 1290 #warn "find<$path,$origin>\n";#d#
1119 1291
1120 $path = new cf::path $path, $origin && $origin->path; 1292 $path = new cf::path $path, $origin && $origin->path;
1121 my $key = $path->as_string; 1293 my $key = $path->as_string;
1122 1294
1295 cf::lock_wait "map_find:$key";
1296
1123 $cf::MAP{$key} || do { 1297 $cf::MAP{$key} || do {
1298 my $guard = cf::lock_acquire "map_find:$key";
1299
1124 # do it the slow way 1300 # do it the slow way
1125 my $map = try_load_header $path->save_path; 1301 my $map = try_load_header $path->save_path;
1126 1302
1303 Coro::cede;
1304
1127 if ($map) { 1305 if ($map) {
1306 $map->last_access ((delete $map->{last_access})
1307 || $cf::RUNTIME); #d#
1128 # safety 1308 # safety
1129 $map->{instantiate_time} = $cf::RUNTIME 1309 $map->{instantiate_time} = $cf::RUNTIME
1130 if $map->{instantiate_time} > $cf::RUNTIME; 1310 if $map->{instantiate_time} > $cf::RUNTIME;
1131 } else { 1311 } else {
1132 if (my $rmp = $path->random_map_params) { 1312 if (my $rmp = $path->random_map_params) {
1137 1317
1138 $map or return; 1318 $map or return;
1139 1319
1140 $map->{load_original} = 1; 1320 $map->{load_original} = 1;
1141 $map->{instantiate_time} = $cf::RUNTIME; 1321 $map->{instantiate_time} = $cf::RUNTIME;
1322 $map->last_access ($cf::RUNTIME);
1142 $map->instantiate; 1323 $map->instantiate;
1143 1324
1144 # per-player maps become, after loading, normal maps 1325 # per-player maps become, after loading, normal maps
1145 $map->per_player (0) if $path->{user_rel}; 1326 $map->per_player (0) if $path->{user_rel};
1146 } 1327 }
1147 #Coro::Timer::sleep 1;#d#
1148 1328
1149 $map->path ($key); 1329 $map->path ($key);
1150 $map->{path} = $path; 1330 $map->{path} = $path;
1151 $map->{last_save} = $cf::RUNTIME; 1331 $map->{last_save} = $cf::RUNTIME;
1152 $map->last_access ($cf::RUNTIME); 1332
1333 Coro::cede;
1153 1334
1154 if ($map->should_reset) { 1335 if ($map->should_reset) {
1155 $map->reset; 1336 $map->reset;
1337 undef $guard;
1156 $map = find_map $path; 1338 $map = find $path
1339 or return;
1157 } 1340 }
1158 1341
1159 $cf::MAP{$key} = $map 1342 $cf::MAP{$key} = $map
1160 } 1343 }
1161} 1344}
1162 1345
1163sub load { 1346sub load {
1164 my ($self) = @_; 1347 my ($self) = @_;
1165 1348
1349 my $path = $self->{path};
1350 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1351
1166 return if $self->in_memory != cf::MAP_SWAPPED; 1352 return if $self->in_memory != cf::MAP_SWAPPED;
1167 1353
1168 $self->in_memory (cf::MAP_LOADING); 1354 $self->in_memory (cf::MAP_LOADING);
1169
1170 my $path = $self->{path};
1171 1355
1172 $self->alloc; 1356 $self->alloc;
1173 $self->load_objects ($self->{load_path}, 1) 1357 $self->load_objects ($self->{load_path}, 1)
1174 or return; 1358 or return;
1175 1359
1181 if (aio_open $uniq, O_RDONLY, 0) { 1365 if (aio_open $uniq, O_RDONLY, 0) {
1182 $self->clear_unique_items; 1366 $self->clear_unique_items;
1183 $self->load_objects ($uniq, 0); 1367 $self->load_objects ($uniq, 0);
1184 } 1368 }
1185 } 1369 }
1370
1371 Coro::cede;
1186 1372
1187 # now do the right thing for maps 1373 # now do the right thing for maps
1188 $self->link_multipart_objects; 1374 $self->link_multipart_objects;
1189 1375
1190 if ($self->{path}->is_style_map) { 1376 if ($self->{path}->is_style_map) {
1198 $self->difficulty ($self->estimate_difficulty) 1384 $self->difficulty ($self->estimate_difficulty)
1199 unless $self->difficulty; 1385 unless $self->difficulty;
1200 $self->activate; 1386 $self->activate;
1201 } 1387 }
1202 1388
1389 Coro::cede;
1390
1203 $self->in_memory (cf::MAP_IN_MEMORY); 1391 $self->in_memory (cf::MAP_IN_MEMORY);
1204} 1392}
1205 1393
1206sub load_map_sync { 1394# find and load all maps in the 3x3 area around a map
1395sub load_diag {
1396 my ($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 $neigh->load;
1415 }
1416}
1417
1418sub find_sync {
1207 my ($path, $origin) = @_; 1419 my ($path, $origin) = @_;
1208 1420
1209 #warn "load_map_sync<$path, $origin>\n";#d# 1421 cf::sync_job { find $path, $origin }
1422}
1210 1423
1211 cf::sync_job { 1424sub do_load_sync {
1212 my $map = cf::map::find_map $path, $origin 1425 my ($map) = @_;
1426
1427 cf::sync_job { $map->load };
1428}
1429
1430our %MAP_PREFETCH;
1431our $MAP_PREFETCHER = Coro::async {
1432 while () {
1433 while (%MAP_PREFETCH) {
1434 my $key = each %MAP_PREFETCH
1213 or return; 1435 or next;
1436 my $path = delete $MAP_PREFETCH{$key};
1437
1438 my $map = find $path
1439 or next;
1214 $map->load; 1440 $map->load;
1215 $map 1441 }
1442 Coro::schedule;
1216 } 1443 }
1444};
1445
1446sub find_async {
1447 my ($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 $MAP_PREFETCHER->ready;
1458
1459 ()
1217} 1460}
1218 1461
1219sub save { 1462sub save {
1220 my ($self) = @_; 1463 my ($self) = @_;
1221 1464
1465 my $lock = cf::lock_acquire "map_data:" . $self->path;
1466
1222 $self->{last_save} = $cf::RUNTIME; 1467 $self->{last_save} = $cf::RUNTIME;
1223 1468
1224 return unless $self->dirty; 1469 return unless $self->dirty;
1225 1470
1226 my $save = $self->{path}->save_path; utf8::encode $save; 1471 my $save = $self->{path}->save_path; utf8::encode $save;
1227 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1472 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1228 1473
1229 $self->{load_path} = $save; 1474 $self->{load_path} = $save;
1230 1475
1231 return if $self->{deny_save}; 1476 return if $self->{deny_save};
1477
1478 local $self->{last_access} = $self->last_access;#d#
1479
1480 cf::async {
1481 $_->contr->save for $self->players;
1482 };
1232 1483
1233 if ($uniq) { 1484 if ($uniq) {
1234 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1485 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235 $self->save_objects ($uniq, cf::IO_UNIQUES); 1486 $self->save_objects ($uniq, cf::IO_UNIQUES);
1236 } else { 1487 } else {
1239} 1490}
1240 1491
1241sub swap_out { 1492sub swap_out {
1242 my ($self) = @_; 1493 my ($self) = @_;
1243 1494
1495 # save first because save cedes
1496 $self->save;
1497
1498 my $lock = cf::lock_acquire "map_data:" . $self->path;
1499
1244 return if $self->players; 1500 return if $self->players;
1245 return if $self->in_memory != cf::MAP_IN_MEMORY; 1501 return if $self->in_memory != cf::MAP_IN_MEMORY;
1246 return if $self->{deny_save}; 1502 return if $self->{deny_save};
1247 1503
1248 $self->save;
1249 $self->clear; 1504 $self->clear;
1250 $self->in_memory (cf::MAP_SWAPPED); 1505 $self->in_memory (cf::MAP_SWAPPED);
1251} 1506}
1252 1507
1253sub reset_at { 1508sub reset_at {
1291} 1546}
1292 1547
1293sub reset { 1548sub reset {
1294 my ($self) = @_; 1549 my ($self) = @_;
1295 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1296 return if $self->players; 1553 return if $self->players;
1297 return if $self->{path}{user_rel};#d# 1554 return if $self->{path}{user_rel};#d#
1298 1555
1299 warn "resetting map ", $self->path;#d# 1556 warn "resetting map ", $self->path;#d#
1300 1557
1319 1576
1320sub customise_for { 1577sub customise_for {
1321 my ($map, $ob) = @_; 1578 my ($map, $ob) = @_;
1322 1579
1323 if ($map->per_player) { 1580 if ($map->per_player) {
1324 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1581 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1325 } 1582 }
1326 1583
1327 $map 1584 $map
1328} 1585}
1329 1586
1330sub emergency_save { 1587=item cf::map::unique_maps
1331 local $cf::FREEZE = 1;
1332 1588
1333 warn "enter emergency map save\n"; 1589Returns an arrayref of cf::path's of all shared maps that have
1590instantiated unique items. May block.
1334 1591
1335 cf::sync_job { 1592=cut
1336 warn "begin emergency map save\n"; 1593
1337 $_->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 $_;
1338 }; 1606 }
1339 1607
1340 warn "end emergency map save\n"; 1608 \@paths
1341} 1609}
1342 1610
1343package cf; 1611package cf;
1344 1612
1345=back 1613=back
1346 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 $_[0]
1636}
1637
1638package cf;
1639
1640=back
1347 1641
1348=head3 cf::object::player 1642=head3 cf::object::player
1349 1643
1350=over 4 1644=over 4
1351 1645
1408=cut 1702=cut
1409 1703
1410sub cf::object::player::enter_link { 1704sub cf::object::player::enter_link {
1411 my ($self) = @_; 1705 my ($self) = @_;
1412 1706
1707 $self->deactivate_recursive;
1708
1413 return if $self->map == $LINK_MAP; 1709 return if $self->map == $LINK_MAP;
1414 1710
1415 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1711 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416 if $self->map; 1712 if $self->map;
1417 1713
1418 $self->enter_map ($LINK_MAP, 20, 20); 1714 $self->enter_map ($LINK_MAP, 20, 20);
1419 $self->deactivate_recursive;
1420} 1715}
1421 1716
1422sub cf::object::player::leave_link { 1717sub cf::object::player::leave_link {
1423 my ($self, $map, $x, $y) = @_; 1718 my ($self, $map, $x, $y) = @_;
1424 1719
1425 my $link_pos = delete $self->{_link_pos}; 1720 my $link_pos = delete $self->{_link_pos};
1426 1721
1427 unless ($map) { 1722 unless ($map) {
1428 # restore original map position 1723 # restore original map position
1429 ($map, $x, $y) = @{ $link_pos || [] }; 1724 ($map, $x, $y) = @{ $link_pos || [] };
1430 $map = cf::map::find_map $map; 1725 $map = cf::map::find $map;
1431 1726
1432 unless ($map) { 1727 unless ($map) {
1433 ($map, $x, $y) = @$EMERGENCY_POSITION; 1728 ($map, $x, $y) = @$EMERGENCY_POSITION;
1434 $map = cf::map::find_map $map 1729 $map = cf::map::find $map
1435 or die "FATAL: cannot load emergency map\n"; 1730 or die "FATAL: cannot load emergency map\n";
1436 } 1731 }
1437 } 1732 }
1438 1733
1439 ($x, $y) = (-1, -1) 1734 ($x, $y) = (-1, -1)
1442 # use -1 or undef as default coordinates, not 0, 0 1737 # use -1 or undef as default coordinates, not 0, 0
1443 ($x, $y) = ($map->enter_x, $map->enter_y) 1738 ($x, $y) = ($map->enter_x, $map->enter_y)
1444 if $x <=0 && $y <= 0; 1739 if $x <=0 && $y <= 0;
1445 1740
1446 $map->load; 1741 $map->load;
1742 $map->load_diag;
1447 1743
1744 return unless $self->contr->active;
1448 $self->activate_recursive; 1745 $self->activate_recursive;
1449 $self->enter_map ($map, $x, $y); 1746 $self->enter_map ($map, $x, $y);
1450} 1747}
1451 1748
1749cf::player->attach (
1750 on_logout => sub {
1751 my ($pl) = @_;
1752
1753 # abort map switching before logout
1754 if ($pl->ob->{_link_pos}) {
1755 cf::sync_job {
1756 $pl->ob->leave_link
1757 };
1758 }
1759 },
1760 on_login => sub {
1761 my ($pl) = @_;
1762
1763 # try to abort aborted map switching on player login :)
1764 # should happen only on crashes
1765 if ($pl->ob->{_link_pos}) {
1766 $pl->ob->enter_link;
1767 (async {
1768 # we need this sleep as the login has a concurrent enter_exit running
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);
1774 Coro::Timer::sleep 1;
1775 $pl->ob->leave_link;
1776 })->prio (2);
1777 }
1778 },
1779);
1780
1452=item $player_object->goto_map ($path, $x, $y) 1781=item $player_object->goto ($path, $x, $y)
1453 1782
1454=cut 1783=cut
1455 1784
1456sub cf::object::player::goto_map { 1785sub cf::object::player::goto {
1457 my ($self, $path, $x, $y) = @_; 1786 my ($self, $path, $x, $y) = @_;
1458 1787
1788 $path = new cf::path $path;
1789
1459 $self->enter_link; 1790 $self->enter_link;
1460 1791
1461 (Coro::async { 1792 (async {
1462 $path = new cf::path $path;
1463
1464 my $map = cf::map::find_map $path->as_string; 1793 my $map = cf::map::find $path->as_string;
1465 $map = $map->customise_for ($self) if $map; 1794 $map = $map->customise_for ($self) if $map;
1466 1795
1467# warn "entering ", $map->path, " at ($x, $y)\n" 1796# warn "entering ", $map->path, " at ($x, $y)\n"
1468# if $map; 1797# if $map;
1469 1798
1470 $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);
1471 1800
1472 $self->leave_link ($map, $x, $y); 1801 $self->leave_link ($map, $x, $y);
1473 })->prio (1); 1802 })->prio (1);
1474} 1803}
1475 1804
1528 1857
1529 return unless $self->type == cf::PLAYER; 1858 return unless $self->type == cf::PLAYER;
1530 1859
1531 $self->enter_link; 1860 $self->enter_link;
1532 1861
1533 (Coro::async { 1862 (async {
1863 $self->deactivate_recursive; # just to be sure
1534 unless (eval { 1864 unless (eval {
1535
1536 prepare_random_map $exit 1865 prepare_random_map $exit
1537 if $exit->slaying eq "/!"; 1866 if $exit->slaying eq "/!";
1538 1867
1539 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;
1540 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1869 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1541 1870
1542 1; 1871 1;
1543 }) { 1872 }) {
1544 $self->message ("Something went wrong deep within the crossfire server. " 1873 $self->message ("Something went wrong deep within the crossfire server. "
1545 . "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. "
1546 . "Please report this to the dungeon master", 1875 . "Please report this to the dungeon master!",
1547 cf::NDI_UNIQUE | cf::NDI_RED); 1876 cf::NDI_UNIQUE | cf::NDI_RED);
1548 1877
1549 warn "ERROR in enter_exit: $@"; 1878 warn "ERROR in enter_exit: $@";
1550 $self->leave_link; 1879 $self->leave_link;
1551 } 1880 }
1602 on_reply => sub { 1931 on_reply => sub {
1603 my ($ns, $msg) = @_; 1932 my ($ns, $msg) = @_;
1604 1933
1605 # this weird shuffling is so that direct followup queries 1934 # this weird shuffling is so that direct followup queries
1606 # get handled first 1935 # get handled first
1607 my $queue = delete $ns->{query_queue}; 1936 my $queue = delete $ns->{query_queue}
1937 or return; # be conservative, not sure how that can happen, but we saw a crash here
1608 1938
1609 (shift @$queue)->[1]->($msg); 1939 (shift @$queue)->[1]->($msg);
1610 1940
1611 push @{ $ns->{query_queue} }, @$queue; 1941 push @{ $ns->{query_queue} }, @$queue;
1612 1942
1618 } 1948 }
1619 } 1949 }
1620 }, 1950 },
1621); 1951);
1622 1952
1623=item $client->coro (\&cb) 1953=item $client->async (\&cb)
1624 1954
1625Create a new coroutine, running the specified callback. The coroutine will 1955Create a new coroutine, running the specified callback. The coroutine will
1626be automatically cancelled when the client gets destroyed (e.g. on logout, 1956be automatically cancelled when the client gets destroyed (e.g. on logout,
1627or loss of connection). 1957or loss of connection).
1628 1958
1629=cut 1959=cut
1630 1960
1631sub cf::client::coro { 1961sub cf::client::async {
1632 my ($self, $cb) = @_; 1962 my ($self, $cb) = @_;
1633 1963
1634 my $coro; $coro = async { 1964 my $coro = &Coro::async ($cb);
1635 eval {
1636 $cb->();
1637 };
1638 warn $@ if $@;
1639 };
1640 1965
1641 $coro->on_destroy (sub { 1966 $coro->on_destroy (sub {
1642 delete $self->{_coro}{$coro+0}; 1967 delete $self->{_coro}{$coro+0};
1643 }); 1968 });
1644 1969
1816 2141
1817{ 2142{
1818 my $path = cf::localdir . "/database.pst"; 2143 my $path = cf::localdir . "/database.pst";
1819 2144
1820 sub db_load() { 2145 sub db_load() {
1821 warn "loading database $path\n";#d# remove later
1822 $DB = stat $path ? Storable::retrieve $path : { }; 2146 $DB = stat $path ? Storable::retrieve $path : { };
1823 } 2147 }
1824 2148
1825 my $pid; 2149 my $pid;
1826 2150
1827 sub db_save() { 2151 sub db_save() {
1828 warn "saving database $path\n";#d# remove later
1829 waitpid $pid, 0 if $pid; 2152 waitpid $pid, 0 if $pid;
1830 if (0 == ($pid = fork)) { 2153 if (0 == ($pid = fork)) {
1831 $DB->{_meta}{version} = 1; 2154 $DB->{_meta}{version} = 1;
1832 Storable::nstore $DB, "$path~"; 2155 Storable::nstore $DB, "$path~";
1833 rename "$path~", $path; 2156 rename "$path~", $path;
1881 open my $fh, "<:utf8", cf::confdir . "/config" 2204 open my $fh, "<:utf8", cf::confdir . "/config"
1882 or return; 2205 or return;
1883 2206
1884 local $/; 2207 local $/;
1885 *CFG = YAML::Syck::Load <$fh>; 2208 *CFG = YAML::Syck::Load <$fh>;
2209
2210 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
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
2215 if (exists $CFG{mlockall}) {
2216 eval {
2217 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2218 and die "WARNING: m(un)lockall failed: $!\n";
2219 };
2220 warn $@ if $@;
2221 }
1886} 2222}
1887 2223
1888sub main { 2224sub main {
1889 # we must not ever block the main coroutine 2225 # we must not ever block the main coroutine
1890 local $Coro::idle = sub { 2226 local $Coro::idle = sub {
1891 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#
1892 (Coro::unblock_sub {
1893 Event::one_event; 2228 async { Event::one_event };
1894 })->();
1895 }; 2229 };
1896 2230
1897 cfg_load; 2231 cfg_load;
1898 db_load; 2232 db_load;
1899 load_extensions; 2233 load_extensions;
1900 Event::loop; 2234 Event::loop;
1901} 2235}
1902 2236
1903############################################################################# 2237#############################################################################
1904# 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 $map->save;
2275 }
2276 warn "end emergency map save\n";
2277 };
2278
2279 warn "leave emergency perl save\n";
2280}
1905 2281
1906sub reload() { 2282sub reload() {
1907 # can/must only be called in main 2283 # can/must only be called in main
1908 if ($Coro::current != $Coro::main) { 2284 if ($Coro::current != $Coro::main) {
1909 warn "can only reload from main coroutine\n"; 2285 warn "can only reload from main coroutine\n";
1910 return; 2286 return;
1911 } 2287 }
1912 2288
1913 warn "reloading..."; 2289 warn "reloading...";
1914 2290
1915 local $FREEZE = 1; 2291 warn "freezing server";
2292 my $guard = freeze_mainloop;
1916 cf::emergency_save; 2293 cf::emergency_save;
2294
2295 warn "sync database to disk";
2296 cf::db_sync;
2297 IO::AIO::flush;
1917 2298
1918 eval { 2299 eval {
1919 # 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
1920 2301
1921 # cancel all watchers 2302 warn "cancel all watchers";
1922 for (Event::all_watchers) { 2303 for (Event::all_watchers) {
1923 $_->cancel if $_->data & WF_AUTOCANCEL; 2304 $_->cancel if $_->data & WF_AUTOCANCEL;
1924 } 2305 }
1925 2306
1926 # cancel all extension coros 2307 warn "cancel all extension coros";
1927 $_->cancel for values %EXT_CORO; 2308 $_->cancel for values %EXT_CORO;
1928 %EXT_CORO = (); 2309 %EXT_CORO = ();
1929 2310
2311 warn "remove commands";
2312 %COMMAND = ();
2313
2314 warn "remove ext commands";
2315 %EXTCMD = ();
2316
1930 # unload all extensions 2317 warn "unload/nuke all extensions";
1931 for (@exts) { 2318 for my $pkg (@EXTS) {
1932 warn "unloading <$_>"; 2319 warn "unloading <$pkg>";
1933 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: $@";
1934 } 2326 }
1935 2327
2328 Symbol::delete_package $pkg;
2329 }
2330
1936 # unload all modules loaded from $LIBDIR 2331 warn "unload all perl modules loaded from $LIBDIR";
1937 while (my ($k, $v) = each %INC) { 2332 while (my ($k, $v) = each %INC) {
1938 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2333 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939 2334
1940 warn "removing <$k>"; 2335 warn "removing <$k>";
1941 delete $INC{$k}; 2336 delete $INC{$k};
1948 } 2343 }
1949 2344
1950 Symbol::delete_package $k; 2345 Symbol::delete_package $k;
1951 } 2346 }
1952 2347
1953 # sync database to disk
1954 cf::db_sync;
1955 IO::AIO::flush;
1956
1957 # get rid of safe::, as good as possible 2348 warn "get rid of safe::, as good as possible";
1958 Symbol::delete_package "safe::$_" 2349 Symbol::delete_package "safe::$_"
1959 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);
1960 2351
1961 # remove register_script_function callbacks
1962 # TODO
1963
1964 # unload cf.pm "a bit" 2352 warn "unload cf.pm \"a bit\"";
1965 delete $INC{"cf.pm"}; 2353 delete $INC{"cf.pm"};
1966 2354
1967 # don't, removes xs symbols, too, 2355 # don't, removes xs symbols, too,
1968 # and global variables created in xs 2356 # and global variables created in xs
1969 #Symbol::delete_package __PACKAGE__; 2357 #Symbol::delete_package __PACKAGE__;
1970 2358
1971 # reload cf.pm
1972 warn "reloading cf.pm"; 2359 warn "reloading cf.pm";
1973 require cf; 2360 require cf;
1974 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2361 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975 2362
1976 # load config and database again 2363 warn "load config and database again";
1977 cf::cfg_load; 2364 cf::cfg_load;
1978 cf::db_load; 2365 cf::db_load;
1979 2366
1980 # load extensions
1981 warn "load extensions"; 2367 warn "load extensions";
1982 cf::load_extensions; 2368 cf::load_extensions;
1983 2369
1984 # reattach attachments to objects 2370 warn "reattach attachments to objects/players";
1985 warn "reattach";
1986 _global_reattach; 2371 _global_reattach;
2372 warn "reattach attachments to maps";
2373 reattach $_ for values %MAP;
1987 }; 2374 };
1988 2375
1989 if ($@) { 2376 if ($@) {
1990 warn $@; 2377 warn $@;
1991 warn "error while reloading, exiting."; 2378 warn "error while reloading, exiting.";
1992 exit 1; 2379 exit 1;
1993 } 2380 }
1994 2381
1995 warn "reloaded successfully"; 2382 warn "reloaded";
1996}; 2383};
1997 2384
1998############################################################################# 2385#############################################################################
1999 2386
2000unless ($LINK_MAP) { 2387unless ($LINK_MAP) {
2007 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2394 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2395 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2009 2396
2010 # dirty hack because... archetypes are not yet loaded 2397 # dirty hack because... archetypes are not yet loaded
2011 Event->timer ( 2398 Event->timer (
2012 after => 2, 2399 after => 10,
2013 cb => sub { 2400 cb => sub {
2014 $_[0]->w->cancel; 2401 $_[0]->w->cancel;
2015 2402
2016 # provide some exits "home" 2403 # provide some exits "home"
2017 my $exit = cf::object::new "exit"; 2404 my $exit = cf::object::new "exit";
2036 $LINK_MAP->{deny_reset} = 1; 2423 $LINK_MAP->{deny_reset} = 1;
2037 2424
2038 $cf::MAP{$LINK_MAP->path} = $LINK_MAP; 2425 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039} 2426}
2040 2427
2041register "<global>", __PACKAGE__;
2042
2043register_command "reload" => sub { 2428register_command "reload" => sub {
2044 my ($who, $arg) = @_; 2429 my ($who, $arg) = @_;
2045 2430
2046 if ($who->flag (FLAG_WIZ)) { 2431 if ($who->flag (FLAG_WIZ)) {
2047 $who->message ("start of reload."); 2432 $who->message ("start of reload.");
2056 reentrant => 0, 2441 reentrant => 0,
2057 prio => 0, 2442 prio => 0,
2058 at => $NEXT_TICK || $TICK, 2443 at => $NEXT_TICK || $TICK,
2059 data => WF_AUTOCANCEL, 2444 data => WF_AUTOCANCEL,
2060 cb => sub { 2445 cb => sub {
2061 unless ($FREEZE) {
2062 cf::server_tick; # one server iteration 2446 cf::server_tick; # one server iteration
2063 $RUNTIME += $TICK; 2447 $RUNTIME += $TICK;
2064 }
2065
2066 $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;
2067 2452
2068 # 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
2069 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2454 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2070 2455
2071 $TICK_WATCHER->at ($NEXT_TICK); 2456 $TICK_WATCHER->at ($NEXT_TICK);
2093 or warn "ERROR: unable to write runtime file: $!"; 2478 or warn "ERROR: unable to write runtime file: $!";
2094 })->(); 2479 })->();
2095 }, 2480 },
2096); 2481);
2097 2482
2483END { cf::emergency_save }
2484
20981 24851
2099 2486

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