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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 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;
282 365
283############################################################################# 366#############################################################################
284 367
285package cf::path; 368package cf::path;
286 369
370use overload
371 '""' => \&as_string;
372
373# used to convert map paths into valid unix filenames by repalcing / by ∕
374our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
287sub new { 376sub new {
288 my ($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;
291 380
292 my $self = bless { }, $class; 381 my $self = bless { }, $class;
293 382
383 # {... are special paths that are not touched
384 # ?xxx/... are special absolute paths
385 # ?random/... random maps
386 # /! non-realised random map exit
387 # /... normal maps
388 # ~/... per-player maps without a specific player (DO NOT USE)
389 # ~user/... per-player map of a specific user
390
391 $path =~ s/$PATH_SEP/\//go;
392
393 if ($path =~ /^{/) {
394 # fine as it is
294 if ($path =~ s{^\?random/}{}) { 395 } elsif ($path =~ s{^\?random/}{}) {
295 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data; 396 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296 $self->{random} = cf::from_json $data; 397 $self->{random} = cf::from_json $data;
297 } else { 398 } else {
298 if ($path =~ s{^~([^/]+)?}{}) { 399 if ($path =~ s{^~([^/]+)?}{}) {
299 $self->{user_rel} = 1; 400 $self->{user_rel} = 1;
344# } 445# }
345} 446}
346 447
347# escape the /'s in the path 448# escape the /'s in the path
348sub _escaped_path { 449sub _escaped_path {
349 # ∕ is U+2215
350 (my $path = $_[0]{path}) =~ s/\///g; 450 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
351 $path 451 $path
352} 452}
353 453
354# the original (read-only) location 454# the original (read-only) location
355sub load_path { 455sub load_path {
804 or return; 904 or return;
805 905
806 unless (aio_stat "$filename.pst") { 906 unless (aio_stat "$filename.pst") {
807 (aio_load "$filename.pst", $av) >= 0 907 (aio_load "$filename.pst", $av) >= 0
808 or return; 908 or return;
809 $av = eval { (Storable::thaw <$av>)->{objs} }; 909 $av = eval { (Storable::thaw $av)->{objs} };
810 } 910 }
811 911
912 warn sprintf "loading %s (%d)\n",
913 $filename, length $data, scalar @{$av || []};#d#
812 return ($data, $av); 914 return ($data, $av);
813} 915}
814 916
815############################################################################# 917#############################################################################
816# command handling &c 918# command handling &c
841=cut 943=cut
842 944
843sub register_extcmd { 945sub register_extcmd {
844 my ($name, $cb) = @_; 946 my ($name, $cb) = @_;
845 947
846 my $caller = caller;
847 #warn "registering extcmd '$name' to '$caller'";
848
849 $EXTCMD{$name} = [$cb, $caller]; 948 $EXTCMD{$name} = $cb;
850} 949}
851 950
852cf::player->attach ( 951cf::player->attach (
853 on_command => sub { 952 on_command => sub {
854 my ($pl, $name, $params) = @_; 953 my ($pl, $name, $params) = @_;
867 966
868 my $msg = eval { from_json $buf }; 967 my $msg = eval { from_json $buf };
869 968
870 if (ref $msg) { 969 if (ref $msg) {
871 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 970 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872 if (my %reply = $cb->[0]->($pl, $msg)) { 971 if (my %reply = $cb->($pl, $msg)) {
873 $pl->ext_reply ($msg->{msgid}, %reply); 972 $pl->ext_reply ($msg->{msgid}, %reply);
874 } 973 }
875 } 974 }
876 } else { 975 } else {
877 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 976 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
879 978
880 cf::override; 979 cf::override;
881 }, 980 },
882); 981);
883 982
884sub register {
885 my ($base, $pkg) = @_;
886
887 #TODO
888}
889
890sub load_extension { 983sub load_extension {
891 my ($path) = @_; 984 my ($path) = @_;
892 985
893 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 986 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
894 my $base = $1; 987 my $base = $1;
909 1002
910 eval $source 1003 eval $source
911 or die $@ ? "$path: $@\n" 1004 or die $@ ? "$path: $@\n"
912 : "extension disabled.\n"; 1005 : "extension disabled.\n";
913 1006
914 push @exts, $pkg; 1007 push @EXTS, $pkg;
915 $ext_pkg{$base} = $pkg;
916
917# no strict 'refs';
918# @{"$pkg\::ISA"} = ext::;
919
920 register $base, $pkg;
921}
922
923sub unload_extension {
924 my ($pkg) = @_;
925
926 warn "removing extension $pkg\n";
927
928 # remove hooks
929 #TODO
930# for my $idx (0 .. $#PLUGIN_EVENT) {
931# delete $hook[$idx]{$pkg};
932# }
933
934 # remove commands
935 for my $name (keys %COMMAND) {
936 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938 if (@cb) {
939 $COMMAND{$name} = \@cb;
940 } else {
941 delete $COMMAND{$name};
942 }
943 }
944
945 # remove extcmds
946 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947 delete $EXTCMD{$name};
948 }
949
950 if (my $cb = $pkg->can ("unload")) {
951 eval {
952 $cb->($pkg);
953 1
954 } or warn "$pkg unloaded, but with errors: $@";
955 }
956
957 Symbol::delete_package $pkg;
958} 1008}
959 1009
960sub load_extensions { 1010sub load_extensions {
961 for my $ext (<$LIBDIR/*.ext>) { 1011 for my $ext (<$LIBDIR/*.ext>) {
962 next unless -r $ext; 1012 next unless -r $ext;
980}; 1030};
981 1031
982cf::map->attach (prio => -10000, package => cf::mapsupport::); 1032cf::map->attach (prio => -10000, package => cf::mapsupport::);
983 1033
984############################################################################# 1034#############################################################################
985# load/save perl data associated with player->ob objects
986
987sub all_objects(@) {
988 @_, map all_objects ($_->inv), @_
989}
990
991# TODO: compatibility cruft, remove when no longer needed
992cf::player->attach (
993 on_load => sub {
994 my ($pl, $path) = @_;
995
996 for my $o (all_objects $pl->ob) {
997 if (my $value = $o->get_ob_key_value ("_perl_data")) {
998 $o->set_ob_key_value ("_perl_data");
999
1000 %$o = %{ Storable::thaw pack "H*", $value };
1001 }
1002 }
1003 },
1004);
1005
1006#############################################################################
1007 1035
1008=head2 CORE EXTENSIONS 1036=head2 CORE EXTENSIONS
1009 1037
1010Functions and methods that extend core crossfire objects. 1038Functions and methods that extend core crossfire objects.
1011 1039
1040=cut
1041
1042package cf::player;
1043
1044use Coro::AIO;
1045
1012=head3 cf::player 1046=head3 cf::player
1013 1047
1014=over 4 1048=over 4
1015 1049
1016=item cf::player::exists $login 1050=item cf::player::find $login
1017 1051
1018Returns true when the given account exists. 1052Returns the given player object, loading it if necessary (might block).
1019 1053
1020=cut 1054=cut
1021 1055
1022sub cf::player::exists($) { 1056sub playerdir($) {
1023 cf::player::find $_[0] 1057 cf::localdir
1024 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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
1025} 1202}
1026 1203
1027=item $player->ext_reply ($msgid, $msgtype, %msg) 1204=item $player->ext_reply ($msgid, $msgtype, %msg)
1028 1205
1029Sends an ext reply to the player. 1206Sends an ext reply to the player.
1030 1207
1031=cut 1208=cut
1032 1209
1033sub cf::player::ext_reply($$$%) { 1210sub ext_reply($$$%) {
1034 my ($self, $id, %msg) = @_; 1211 my ($self, $id, %msg) = @_;
1035 1212
1036 $msg{msgid} = $id; 1213 $msg{msgid} = $id;
1037 1214
1038 $self->send ("ext " . to_json \%msg); 1215 $self->send ("ext " . cf::to_json \%msg);
1039} 1216}
1217
1218package cf;
1040 1219
1041=back 1220=back
1042 1221
1043 1222
1044=head3 cf::map 1223=head3 cf::map
1050package cf::map; 1229package cf::map;
1051 1230
1052use Fcntl; 1231use Fcntl;
1053use Coro::AIO; 1232use Coro::AIO;
1054 1233
1055our $MAX_RESET = 7200; 1234our $MAX_RESET = 3600;
1056our $DEFAULT_RESET = 3600; 1235our $DEFAULT_RESET = 3000;
1057 1236
1058sub generate_random_map { 1237sub generate_random_map {
1059 my ($path, $rmp) = @_; 1238 my ($path, $rmp) = @_;
1060 1239
1061 # mit "rum" bekleckern, nicht 1240 # mit "rum" bekleckern, nicht
1077# and all this just because we cannot iterate over 1256# and all this just because we cannot iterate over
1078# all maps in C++... 1257# all maps in C++...
1079sub change_all_map_light { 1258sub change_all_map_light {
1080 my ($change) = @_; 1259 my ($change) = @_;
1081 1260
1082 $_->change_map_light ($change) for values %cf::MAP; 1261 $_->change_map_light ($change)
1262 for grep $_->outdoor, values %cf::MAP;
1083} 1263}
1084 1264
1085sub try_load_header($) { 1265sub try_load_header($) {
1086 my ($path) = @_; 1266 my ($path) = @_;
1087 1267
1090 or return; 1270 or return;
1091 1271
1092 my $map = cf::map::new 1272 my $map = cf::map::new
1093 or return; 1273 or return;
1094 1274
1275 # for better error messages only, will be overwritten
1276 $map->path ($path);
1277
1095 $map->load_header ($path) 1278 $map->load_header ($path)
1096 or return; 1279 or return;
1097 1280
1098 $map->{load_path} = $path; 1281 $map->{load_path} = $path;
1099 1282
1100 $map 1283 $map
1101} 1284}
1102 1285
1286sub find;
1103sub find_map { 1287sub find {
1104 my ($path, $origin) = @_; 1288 my ($path, $origin) = @_;
1105 1289
1106 #warn "find_map<$path,$origin>\n";#d# 1290 #warn "find<$path,$origin>\n";#d#
1107 1291
1108 $path = new cf::path $path, $origin && $origin->path; 1292 $path = new cf::path $path, $origin && $origin->path;
1109 my $key = $path->as_string; 1293 my $key = $path->as_string;
1110 1294
1295 cf::lock_wait "map_find:$key";
1296
1111 $cf::MAP{$key} || do { 1297 $cf::MAP{$key} || do {
1298 my $guard = cf::lock_acquire "map_find:$key";
1299
1112 # do it the slow way 1300 # do it the slow way
1113 my $map = try_load_header $path->save_path; 1301 my $map = try_load_header $path->save_path;
1114 1302
1303 Coro::cede;
1304
1115 if ($map) { 1305 if ($map) {
1306 $map->last_access ((delete $map->{last_access})
1307 || $cf::RUNTIME); #d#
1116 # safety 1308 # safety
1117 $map->{instantiate_time} = $cf::RUNTIME 1309 $map->{instantiate_time} = $cf::RUNTIME
1118 if $map->{instantiate_time} > $cf::RUNTIME; 1310 if $map->{instantiate_time} > $cf::RUNTIME;
1119 } else { 1311 } else {
1120 if (my $rmp = $path->random_map_params) { 1312 if (my $rmp = $path->random_map_params) {
1125 1317
1126 $map or return; 1318 $map or return;
1127 1319
1128 $map->{load_original} = 1; 1320 $map->{load_original} = 1;
1129 $map->{instantiate_time} = $cf::RUNTIME; 1321 $map->{instantiate_time} = $cf::RUNTIME;
1322 $map->last_access ($cf::RUNTIME);
1130 $map->instantiate; 1323 $map->instantiate;
1131 1324
1132 # per-player maps become, after loading, normal maps 1325 # per-player maps become, after loading, normal maps
1133 $map->per_player (0) if $path->{user_rel}; 1326 $map->per_player (0) if $path->{user_rel};
1134 } 1327 }
1135 1328
1136 $map->path ($key); 1329 $map->path ($key);
1137 $map->{path} = $path; 1330 $map->{path} = $path;
1138 $map->last_access ($cf::RUNTIME); 1331 $map->{last_save} = $cf::RUNTIME;
1332
1333 Coro::cede;
1139 1334
1140 if ($map->should_reset) { 1335 if ($map->should_reset) {
1141 $map->reset; 1336 $map->reset;
1337 undef $guard;
1142 $map = find_map $path; 1338 $map = find $path
1339 or return;
1143 } 1340 }
1144 1341
1145 $cf::MAP{$key} = $map 1342 $cf::MAP{$key} = $map
1146 } 1343 }
1147} 1344}
1148 1345
1149sub load { 1346sub load {
1150 my ($self) = @_; 1347 my ($self) = @_;
1151 1348
1349 my $path = $self->{path};
1350 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1351
1152 return if $self->in_memory != cf::MAP_SWAPPED; 1352 return if $self->in_memory != cf::MAP_SWAPPED;
1153 1353
1154 $self->in_memory (cf::MAP_LOADING); 1354 $self->in_memory (cf::MAP_LOADING);
1155
1156 my $path = $self->{path};
1157 1355
1158 $self->alloc; 1356 $self->alloc;
1159 $self->load_objects ($self->{load_path}, 1) 1357 $self->load_objects ($self->{load_path}, 1)
1160 or return; 1358 or return;
1161 1359
1167 if (aio_open $uniq, O_RDONLY, 0) { 1365 if (aio_open $uniq, O_RDONLY, 0) {
1168 $self->clear_unique_items; 1366 $self->clear_unique_items;
1169 $self->load_objects ($uniq, 0); 1367 $self->load_objects ($uniq, 0);
1170 } 1368 }
1171 } 1369 }
1370
1371 Coro::cede;
1172 1372
1173 # now do the right thing for maps 1373 # now do the right thing for maps
1174 $self->link_multipart_objects; 1374 $self->link_multipart_objects;
1175 1375
1176 if ($self->{path}->is_style_map) { 1376 if ($self->{path}->is_style_map) {
1184 $self->difficulty ($self->estimate_difficulty) 1384 $self->difficulty ($self->estimate_difficulty)
1185 unless $self->difficulty; 1385 unless $self->difficulty;
1186 $self->activate; 1386 $self->activate;
1187 } 1387 }
1188 1388
1389 Coro::cede;
1390
1189 $self->in_memory (cf::MAP_IN_MEMORY); 1391 $self->in_memory (cf::MAP_IN_MEMORY);
1190} 1392}
1191 1393
1192sub load_map_sync { 1394# find and load all maps in the 3x3 area around a map
1395sub load_diag {
1396 my ($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 $neigh->load;
1415 }
1416}
1417
1418sub find_sync {
1193 my ($path, $origin) = @_; 1419 my ($path, $origin) = @_;
1194 1420
1195 #warn "load_map_sync<$path, $origin>\n";#d# 1421 cf::sync_job { find $path, $origin }
1422}
1196 1423
1197 cf::sync_job { 1424sub do_load_sync {
1198 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
1199 or return; 1435 or next;
1436 my $path = delete $MAP_PREFETCH{$key};
1437
1438 my $map = find $path
1439 or next;
1200 $map->load; 1440 $map->load;
1201 $map 1441 }
1442 Coro::schedule;
1202 } 1443 }
1444};
1445
1446sub find_async {
1447 my ($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 $MAP_PREFETCHER->ready;
1458
1459 ()
1203} 1460}
1204 1461
1205sub save { 1462sub save {
1206 my ($self) = @_; 1463 my ($self) = @_;
1207 1464
1465 my $lock = cf::lock_acquire "map_data:" . $self->path;
1466
1467 $self->{last_save} = $cf::RUNTIME;
1468
1469 return unless $self->dirty;
1470
1208 my $save = $self->{path}->save_path; utf8::encode $save; 1471 my $save = $self->{path}->save_path; utf8::encode $save;
1209 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1472 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210 1473
1211 $self->{last_save} = $cf::RUNTIME;
1212
1213 return unless $self->dirty;
1214
1215 $self->{load_path} = $save; 1474 $self->{load_path} = $save;
1216 1475
1217 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 $self->players;
1482 };
1218 1483
1219 if ($uniq) { 1484 if ($uniq) {
1220 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1485 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221 $self->save_objects ($uniq, cf::IO_UNIQUES); 1486 $self->save_objects ($uniq, cf::IO_UNIQUES);
1222 } else { 1487 } else {
1225} 1490}
1226 1491
1227sub swap_out { 1492sub swap_out {
1228 my ($self) = @_; 1493 my ($self) = @_;
1229 1494
1495 # save first because save cedes
1496 $self->save;
1497
1498 my $lock = cf::lock_acquire "map_data:" . $self->path;
1499
1230 return if $self->players; 1500 return if $self->players;
1231 return if $self->in_memory != cf::MAP_IN_MEMORY; 1501 return if $self->in_memory != cf::MAP_IN_MEMORY;
1232 return if $self->{deny_save}; 1502 return if $self->{deny_save};
1233 1503
1234 $self->save;
1235 $self->clear; 1504 $self->clear;
1236 $self->in_memory (cf::MAP_SWAPPED); 1505 $self->in_memory (cf::MAP_SWAPPED);
1237} 1506}
1238 1507
1239sub reset_at { 1508sub reset_at {
1240 my ($self) = @_; 1509 my ($self) = @_;
1241 1510
1242 # TODO: safety, remove and allow resettable per-player maps 1511 # TODO: safety, remove and allow resettable per-player maps
1243 return 1e100 if $self->{path}{user_rel}; 1512 return 1e99 if $self->{path}{user_rel};
1244 return 1e100 if $self->{deny_reset}; 1513 return 1e99 if $self->{deny_reset};
1245 1514
1246 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1515 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247 my $to = $self->reset_timeout || $DEFAULT_RESET; 1516 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248 $to = $MAX_RESET if $to > $MAX_RESET;
1249 1517
1250 $time + $to 1518 $time + $to
1251} 1519}
1252 1520
1253sub should_reset { 1521sub should_reset {
1262 utf8::encode (my $save = $self->{path}->save_path); 1530 utf8::encode (my $save = $self->{path}->save_path);
1263 aioreq_pri 3; IO::AIO::aio_unlink $save; 1531 aioreq_pri 3; IO::AIO::aio_unlink $save;
1264 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst"; 1532 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265} 1533}
1266 1534
1535sub rename {
1536 my ($self, $new_path) = @_;
1537
1538 $self->unlink_save;
1539
1540 delete $cf::MAP{$self->path};
1541 $self->{path} = new cf::path $new_path;
1542 $self->path ($self->{path}->as_string);
1543 $cf::MAP{$self->path} = $self;
1544
1545 $self->save;
1546}
1547
1267sub reset { 1548sub reset {
1268 my ($self) = @_; 1549 my ($self) = @_;
1269 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1270 return if $self->players; 1553 return if $self->players;
1271 return if $self->{path}{user_rel};#d# 1554 return if $self->{path}{user_rel};#d#
1272 1555
1273 warn "resetting map ", $self->path;#d# 1556 warn "resetting map ", $self->path;#d#
1274 1557
1278 1561
1279 $self->unlink_save; 1562 $self->unlink_save;
1280 $self->destroy; 1563 $self->destroy;
1281} 1564}
1282 1565
1566my $nuke_counter = "aaaa";
1567
1568sub nuke {
1569 my ($self) = @_;
1570
1571 $self->{deny_save} = 1;
1572 $self->reset_timeout (1);
1573 $self->rename ("{nuke}/" . ($nuke_counter++));
1574 $self->reset; # polite request, might not happen
1575}
1576
1283sub customise_for { 1577sub customise_for {
1284 my ($map, $ob) = @_; 1578 my ($map, $ob) = @_;
1285 1579
1286 if ($map->per_player) { 1580 if ($map->per_player) {
1287 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1581 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1288 } 1582 }
1289 1583
1290 $map 1584 $map
1291} 1585}
1292 1586
1293sub emergency_save { 1587=item cf::map::unique_maps
1294 local $cf::FREEZE = 1;
1295 1588
1296 warn "enter emergency map save\n"; 1589Returns an arrayref of cf::path's of all shared maps that have
1590instantiated unique items. May block.
1297 1591
1298 cf::sync_job { 1592=cut
1299 warn "begin emergency map save\n"; 1593
1300 $_->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 $_;
1301 }; 1606 }
1302 1607
1303 warn "end emergency map save\n"; 1608 \@paths
1304} 1609}
1305 1610
1306package cf; 1611package cf;
1307 1612
1308=back 1613=back
1309 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
1310 1641
1311=head3 cf::object::player 1642=head3 cf::object::player
1312 1643
1313=over 4 1644=over 4
1314 1645
1350 (ref $cf::CFG{"may_$access"} 1681 (ref $cf::CFG{"may_$access"}
1351 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1682 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352 : $cf::CFG{"may_$access"}) 1683 : $cf::CFG{"may_$access"})
1353} 1684}
1354 1685
1686=item $player_object->enter_link
1687
1688Freezes the player and moves him/her to a special map (C<{link}>).
1689
1690The player should be reaosnably safe there for short amounts of time. You
1691I<MUST> call C<leave_link> as soon as possible, though.
1692
1693=item $player_object->leave_link ($map, $x, $y)
1694
1695Moves the player out of the specila link map onto the given map. If the
1696map is not valid (or omitted), the player will be moved back to the
1697location he/she was before the call to C<enter_link>, or, if that fails,
1698to the emergency map position.
1699
1700Might block.
1701
1702=cut
1703
1355sub cf::object::player::enter_link { 1704sub cf::object::player::enter_link {
1356 my ($self) = @_; 1705 my ($self) = @_;
1357 1706
1707 $self->deactivate_recursive;
1708
1358 return if $self->map == $LINK_MAP; 1709 return if $self->map == $LINK_MAP;
1359 1710
1360 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1711 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361 if $self->map; 1712 if $self->map;
1362 1713
1363 $self->enter_map ($LINK_MAP, 20, 20); 1714 $self->enter_map ($LINK_MAP, 20, 20);
1364 $self->deactivate_recursive;
1365} 1715}
1366 1716
1367sub cf::object::player::leave_link { 1717sub cf::object::player::leave_link {
1368 my ($self, $map, $x, $y) = @_; 1718 my ($self, $map, $x, $y) = @_;
1369 1719
1370 my $link_pos = delete $self->{_link_pos}; 1720 my $link_pos = delete $self->{_link_pos};
1371 1721
1372 unless ($map) { 1722 unless ($map) {
1373 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375 # restore original map position 1723 # restore original map position
1376 ($map, $x, $y) = @{ $link_pos || [] }; 1724 ($map, $x, $y) = @{ $link_pos || [] };
1377 $map = cf::map::find_map $map; 1725 $map = cf::map::find $map;
1378 1726
1379 unless ($map) { 1727 unless ($map) {
1380 ($map, $x, $y) = @$EMERGENCY_POSITION; 1728 ($map, $x, $y) = @$EMERGENCY_POSITION;
1381 $map = cf::map::find_map $map 1729 $map = cf::map::find $map
1382 or die "FATAL: cannot load emergency map\n"; 1730 or die "FATAL: cannot load emergency map\n";
1383 } 1731 }
1384 } 1732 }
1385 1733
1386 ($x, $y) = (-1, -1) 1734 ($x, $y) = (-1, -1)
1389 # use -1 or undef as default coordinates, not 0, 0 1737 # use -1 or undef as default coordinates, not 0, 0
1390 ($x, $y) = ($map->enter_x, $map->enter_y) 1738 ($x, $y) = ($map->enter_x, $map->enter_y)
1391 if $x <=0 && $y <= 0; 1739 if $x <=0 && $y <= 0;
1392 1740
1393 $map->load; 1741 $map->load;
1742 $map->load_diag;
1394 1743
1744 return unless $self->contr->active;
1395 $self->activate_recursive; 1745 $self->activate_recursive;
1396 $self->enter_map ($map, $x, $y); 1746 $self->enter_map ($map, $x, $y);
1397} 1747}
1398 1748
1749cf::player->attach (
1750 on_logout => sub {
1751 my ($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
1399=item $player_object->goto_map ($map, $x, $y) 1781=item $player_object->goto ($path, $x, $y)
1400 1782
1401=cut 1783=cut
1402 1784
1403sub cf::object::player::goto_map { 1785sub cf::object::player::goto {
1404 my ($self, $path, $x, $y) = @_; 1786 my ($self, $path, $x, $y) = @_;
1405 1787
1788 $path = new cf::path $path;
1789
1406 $self->enter_link; 1790 $self->enter_link;
1407 1791
1408 (Coro::async { 1792 (async {
1409 $path = new cf::path $path;
1410
1411 my $map = cf::map::find_map $path->as_string; 1793 my $map = cf::map::find $path->as_string;
1412 $map = $map->customise_for ($self) if $map; 1794 $map = $map->customise_for ($self) if $map;
1413 1795
1414 warn "entering ", $map->path, " at ($x, $y)\n" 1796# warn "entering ", $map->path, " at ($x, $y)\n"
1415 if $map; 1797# if $map;
1798
1799 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416 1800
1417 $self->leave_link ($map, $x, $y); 1801 $self->leave_link ($map, $x, $y);
1418 })->prio (1); 1802 })->prio (1);
1419} 1803}
1420 1804
1473 1857
1474 return unless $self->type == cf::PLAYER; 1858 return unless $self->type == cf::PLAYER;
1475 1859
1476 $self->enter_link; 1860 $self->enter_link;
1477 1861
1478 (Coro::async { 1862 (async {
1863 $self->deactivate_recursive; # just to be sure
1479 unless (eval { 1864 unless (eval {
1480
1481 prepare_random_map $exit 1865 prepare_random_map $exit
1482 if $exit->slaying eq "/!"; 1866 if $exit->slaying eq "/!";
1483 1867
1484 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;
1485 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1869 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1486 1870
1487 1; 1871 1;
1488 }) { 1872 }) {
1489 $self->message ("Something went wrong deep within the crossfire server. " 1873 $self->message ("Something went wrong deep within the crossfire server. "
1490 . "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. "
1491 . "Please report this to the dungeon master", 1875 . "Please report this to the dungeon master!",
1492 cf::NDI_UNIQUE | cf::NDI_RED); 1876 cf::NDI_UNIQUE | cf::NDI_RED);
1493 1877
1494 warn "ERROR in enter_exit: $@"; 1878 warn "ERROR in enter_exit: $@";
1495 $self->leave_link; 1879 $self->leave_link;
1496 } 1880 }
1547 on_reply => sub { 1931 on_reply => sub {
1548 my ($ns, $msg) = @_; 1932 my ($ns, $msg) = @_;
1549 1933
1550 # this weird shuffling is so that direct followup queries 1934 # this weird shuffling is so that direct followup queries
1551 # get handled first 1935 # get handled first
1552 my $queue = delete $ns->{query_queue}; 1936 my $queue = delete $ns->{query_queue}
1937 or return; # be conservative, not sure how that can happen, but we saw a crash here
1553 1938
1554 (shift @$queue)->[1]->($msg); 1939 (shift @$queue)->[1]->($msg);
1555 1940
1556 push @{ $ns->{query_queue} }, @$queue; 1941 push @{ $ns->{query_queue} }, @$queue;
1557 1942
1563 } 1948 }
1564 } 1949 }
1565 }, 1950 },
1566); 1951);
1567 1952
1568=item $client->coro (\&cb) 1953=item $client->async (\&cb)
1569 1954
1570Create a new coroutine, running the specified callback. The coroutine will 1955Create a new coroutine, running the specified callback. The coroutine will
1571be automatically cancelled when the client gets destroyed (e.g. on logout, 1956be automatically cancelled when the client gets destroyed (e.g. on logout,
1572or loss of connection). 1957or loss of connection).
1573 1958
1574=cut 1959=cut
1575 1960
1576sub cf::client::coro { 1961sub cf::client::async {
1577 my ($self, $cb) = @_; 1962 my ($self, $cb) = @_;
1578 1963
1579 my $coro; $coro = async { 1964 my $coro = &Coro::async ($cb);
1580 eval {
1581 $cb->();
1582 };
1583 warn $@ if $@;
1584 };
1585 1965
1586 $coro->on_destroy (sub { 1966 $coro->on_destroy (sub {
1587 delete $self->{_coro}{$coro+0}; 1967 delete $self->{_coro}{$coro+0};
1588 }); 1968 });
1589 1969
1761 2141
1762{ 2142{
1763 my $path = cf::localdir . "/database.pst"; 2143 my $path = cf::localdir . "/database.pst";
1764 2144
1765 sub db_load() { 2145 sub db_load() {
1766 warn "loading database $path\n";#d# remove later
1767 $DB = stat $path ? Storable::retrieve $path : { }; 2146 $DB = stat $path ? Storable::retrieve $path : { };
1768 } 2147 }
1769 2148
1770 my $pid; 2149 my $pid;
1771 2150
1772 sub db_save() { 2151 sub db_save() {
1773 warn "saving database $path\n";#d# remove later
1774 waitpid $pid, 0 if $pid; 2152 waitpid $pid, 0 if $pid;
1775 if (0 == ($pid = fork)) { 2153 if (0 == ($pid = fork)) {
1776 $DB->{_meta}{version} = 1; 2154 $DB->{_meta}{version} = 1;
1777 Storable::nstore $DB, "$path~"; 2155 Storable::nstore $DB, "$path~";
1778 rename "$path~", $path; 2156 rename "$path~", $path;
1826 open my $fh, "<:utf8", cf::confdir . "/config" 2204 open my $fh, "<:utf8", cf::confdir . "/config"
1827 or return; 2205 or return;
1828 2206
1829 local $/; 2207 local $/;
1830 *CFG = YAML::Syck::Load <$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 }
1831} 2222}
1832 2223
1833sub main { 2224sub main {
1834 # we must not ever block the main coroutine 2225 # we must not ever block the main coroutine
1835 local $Coro::idle = sub { 2226 local $Coro::idle = sub {
1836 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2227 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837 (Coro::unblock_sub {
1838 Event::one_event; 2228 async { Event::one_event };
1839 })->();
1840 }; 2229 };
1841 2230
1842 cfg_load; 2231 cfg_load;
1843 db_load; 2232 db_load;
1844 load_extensions; 2233 load_extensions;
1845 Event::loop; 2234 Event::loop;
1846} 2235}
1847 2236
1848############################################################################# 2237#############################################################################
1849# 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 $map->save;
2275 }
2276 warn "end emergency map save\n";
2277 };
2278
2279 warn "leave emergency perl save\n";
2280}
1850 2281
1851sub reload() { 2282sub reload() {
1852 # can/must only be called in main 2283 # can/must only be called in main
1853 if ($Coro::current != $Coro::main) { 2284 if ($Coro::current != $Coro::main) {
1854 warn "can only reload from main coroutine\n"; 2285 warn "can only reload from main coroutine\n";
1855 return; 2286 return;
1856 } 2287 }
1857 2288
1858 warn "reloading..."; 2289 warn "reloading...";
1859 2290
1860 local $FREEZE = 1; 2291 warn "freezing server";
2292 my $guard = freeze_mainloop;
1861 cf::emergency_save; 2293 cf::emergency_save;
2294
2295 warn "sync database to disk";
2296 cf::db_sync;
2297 IO::AIO::flush;
1862 2298
1863 eval { 2299 eval {
1864 # 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
1865 2301
1866 # cancel all watchers 2302 warn "cancel all watchers";
1867 for (Event::all_watchers) { 2303 for (Event::all_watchers) {
1868 $_->cancel if $_->data & WF_AUTOCANCEL; 2304 $_->cancel if $_->data & WF_AUTOCANCEL;
1869 } 2305 }
1870 2306
1871 # cancel all extension coros 2307 warn "cancel all extension coros";
1872 $_->cancel for values %EXT_CORO; 2308 $_->cancel for values %EXT_CORO;
1873 %EXT_CORO = (); 2309 %EXT_CORO = ();
1874 2310
2311 warn "remove commands";
2312 %COMMAND = ();
2313
2314 warn "remove ext commands";
2315 %EXTCMD = ();
2316
1875 # unload all extensions 2317 warn "unload/nuke all extensions";
1876 for (@exts) { 2318 for my $pkg (@EXTS) {
1877 warn "unloading <$_>"; 2319 warn "unloading <$pkg>";
1878 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: $@";
1879 } 2326 }
1880 2327
2328 Symbol::delete_package $pkg;
2329 }
2330
1881 # unload all modules loaded from $LIBDIR 2331 warn "unload all perl modules loaded from $LIBDIR";
1882 while (my ($k, $v) = each %INC) { 2332 while (my ($k, $v) = each %INC) {
1883 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2333 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884 2334
1885 warn "removing <$k>"; 2335 warn "removing <$k>";
1886 delete $INC{$k}; 2336 delete $INC{$k};
1893 } 2343 }
1894 2344
1895 Symbol::delete_package $k; 2345 Symbol::delete_package $k;
1896 } 2346 }
1897 2347
1898 # sync database to disk
1899 cf::db_sync;
1900 IO::AIO::flush;
1901
1902 # get rid of safe::, as good as possible 2348 warn "get rid of safe::, as good as possible";
1903 Symbol::delete_package "safe::$_" 2349 Symbol::delete_package "safe::$_"
1904 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);
1905 2351
1906 # remove register_script_function callbacks
1907 # TODO
1908
1909 # unload cf.pm "a bit" 2352 warn "unload cf.pm \"a bit\"";
1910 delete $INC{"cf.pm"}; 2353 delete $INC{"cf.pm"};
1911 2354
1912 # don't, removes xs symbols, too, 2355 # don't, removes xs symbols, too,
1913 # and global variables created in xs 2356 # and global variables created in xs
1914 #Symbol::delete_package __PACKAGE__; 2357 #Symbol::delete_package __PACKAGE__;
1915 2358
1916 # reload cf.pm
1917 warn "reloading cf.pm"; 2359 warn "reloading cf.pm";
1918 require cf; 2360 require cf;
1919 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2361 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920 2362
1921 # load config and database again 2363 warn "load config and database again";
1922 cf::cfg_load; 2364 cf::cfg_load;
1923 cf::db_load; 2365 cf::db_load;
1924 2366
1925 # load extensions
1926 warn "load extensions"; 2367 warn "load extensions";
1927 cf::load_extensions; 2368 cf::load_extensions;
1928 2369
1929 # reattach attachments to objects 2370 warn "reattach attachments to objects/players";
1930 warn "reattach";
1931 _global_reattach; 2371 _global_reattach;
2372 warn "reattach attachments to maps";
2373 reattach $_ for values %MAP;
1932 }; 2374 };
1933 2375
1934 if ($@) { 2376 if ($@) {
1935 warn $@; 2377 warn $@;
1936 warn "error while reloading, exiting."; 2378 warn "error while reloading, exiting.";
1937 exit 1; 2379 exit 1;
1938 } 2380 }
1939 2381
1940 warn "reloaded successfully"; 2382 warn "reloaded";
1941}; 2383};
1942 2384
1943############################################################################# 2385#############################################################################
1944 2386
1945unless ($LINK_MAP) { 2387unless ($LINK_MAP) {
1952 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2394 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2395 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1954 2396
1955 # dirty hack because... archetypes are not yet loaded 2397 # dirty hack because... archetypes are not yet loaded
1956 Event->timer ( 2398 Event->timer (
1957 after => 2, 2399 after => 10,
1958 cb => sub { 2400 cb => sub {
1959 $_[0]->w->cancel; 2401 $_[0]->w->cancel;
1960 2402
1961 # provide some exits "home" 2403 # provide some exits "home"
1962 my $exit = cf::object::new "exit"; 2404 my $exit = cf::object::new "exit";
1981 $LINK_MAP->{deny_reset} = 1; 2423 $LINK_MAP->{deny_reset} = 1;
1982 2424
1983 $cf::MAP{$LINK_MAP->path} = $LINK_MAP; 2425 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984} 2426}
1985 2427
1986register "<global>", __PACKAGE__;
1987
1988register_command "reload" => sub { 2428register_command "reload" => sub {
1989 my ($who, $arg) = @_; 2429 my ($who, $arg) = @_;
1990 2430
1991 if ($who->flag (FLAG_WIZ)) { 2431 if ($who->flag (FLAG_WIZ)) {
1992 $who->message ("start of reload."); 2432 $who->message ("start of reload.");
2001 reentrant => 0, 2441 reentrant => 0,
2002 prio => 0, 2442 prio => 0,
2003 at => $NEXT_TICK || $TICK, 2443 at => $NEXT_TICK || $TICK,
2004 data => WF_AUTOCANCEL, 2444 data => WF_AUTOCANCEL,
2005 cb => sub { 2445 cb => sub {
2006 unless ($FREEZE) {
2007 cf::server_tick; # one server iteration 2446 cf::server_tick; # one server iteration
2008 $RUNTIME += $TICK; 2447 $RUNTIME += $TICK;
2009 }
2010
2011 $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;
2012 2452
2013 # 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
2014 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2454 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015 2455
2016 $TICK_WATCHER->at ($NEXT_TICK); 2456 $TICK_WATCHER->at ($NEXT_TICK);
2038 or warn "ERROR: unable to write runtime file: $!"; 2478 or warn "ERROR: unable to write runtime file: $!";
2039 })->(); 2479 })->();
2040 }, 2480 },
2041); 2481);
2042 2482
2483END { cf::emergency_save }
2484
20431 24851
2044 2486

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