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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.160 by root, Wed Jan 10 22:54:06 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 $path
362} 452}
363 453
364# the original (read-only) location 454# the original (read-only) location
365sub load_path { 455sub load_path {
817 (aio_load "$filename.pst", $av) >= 0 907 (aio_load "$filename.pst", $av) >= 0
818 or return; 908 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 909 $av = eval { (Storable::thaw $av)->{objs} };
820 } 910 }
821 911
912 warn sprintf "loading %s (%d)\n",
913 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 914 return ($data, $av);
823} 915}
824 916
825############################################################################# 917#############################################################################
826# command handling &c 918# command handling &c
851=cut 943=cut
852 944
853sub register_extcmd { 945sub register_extcmd {
854 my ($name, $cb) = @_; 946 my ($name, $cb) = @_;
855 947
856 my $caller = caller;
857 #warn "registering extcmd '$name' to '$caller'";
858
859 $EXTCMD{$name} = [$cb, $caller]; 948 $EXTCMD{$name} = $cb;
860} 949}
861 950
862cf::player->attach ( 951cf::player->attach (
863 on_command => sub { 952 on_command => sub {
864 my ($pl, $name, $params) = @_; 953 my ($pl, $name, $params) = @_;
877 966
878 my $msg = eval { from_json $buf }; 967 my $msg = eval { from_json $buf };
879 968
880 if (ref $msg) { 969 if (ref $msg) {
881 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 970 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882 if (my %reply = $cb->[0]->($pl, $msg)) { 971 if (my %reply = $cb->($pl, $msg)) {
883 $pl->ext_reply ($msg->{msgid}, %reply); 972 $pl->ext_reply ($msg->{msgid}, %reply);
884 } 973 }
885 } 974 }
886 } else { 975 } else {
887 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 976 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889 978
890 cf::override; 979 cf::override;
891 }, 980 },
892); 981);
893 982
894sub register {
895 my ($base, $pkg) = @_;
896
897 #TODO
898}
899
900sub load_extension { 983sub load_extension {
901 my ($path) = @_; 984 my ($path) = @_;
902 985
903 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 986 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
904 my $base = $1; 987 my $base = $1;
905 my $pkg = $1; 988 my $pkg = $1;
906 $pkg =~ s/[^[:word:]]/_/g; 989 $pkg =~ s/[^[:word:]]/_/g;
907 $pkg = "ext::$pkg"; 990 $pkg = "ext::$pkg";
908 991
909 warn "loading '$path' into '$pkg'\n"; 992 warn "... loading '$path' into '$pkg'\n";
910 993
911 open my $fh, "<:utf8", $path 994 open my $fh, "<:utf8", $path
912 or die "$path: $!"; 995 or die "$path: $!";
913 996
914 my $source = 997 my $source =
919 1002
920 eval $source 1003 eval $source
921 or die $@ ? "$path: $@\n" 1004 or die $@ ? "$path: $@\n"
922 : "extension disabled.\n"; 1005 : "extension disabled.\n";
923 1006
924 push @exts, $pkg; 1007 push @EXTS, $pkg;
925 $ext_pkg{$base} = $pkg;
926
927# no strict 'refs';
928# @{"$pkg\::ISA"} = ext::;
929
930 register $base, $pkg;
931}
932
933sub unload_extension {
934 my ($pkg) = @_;
935
936 warn "removing extension $pkg\n";
937
938 # remove hooks
939 #TODO
940# for my $idx (0 .. $#PLUGIN_EVENT) {
941# delete $hook[$idx]{$pkg};
942# }
943
944 # remove commands
945 for my $name (keys %COMMAND) {
946 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948 if (@cb) {
949 $COMMAND{$name} = \@cb;
950 } else {
951 delete $COMMAND{$name};
952 }
953 }
954
955 # remove extcmds
956 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957 delete $EXTCMD{$name};
958 }
959
960 if (my $cb = $pkg->can ("unload")) {
961 eval {
962 $cb->($pkg);
963 1
964 } or warn "$pkg unloaded, but with errors: $@";
965 }
966
967 Symbol::delete_package $pkg;
968} 1008}
969 1009
970sub load_extensions { 1010sub load_extensions {
971 for my $ext (<$LIBDIR/*.ext>) { 1011 for my $ext (<$LIBDIR/*.ext>) {
972 next unless -r $ext; 1012 next unless -r $ext;
990}; 1030};
991 1031
992cf::map->attach (prio => -10000, package => cf::mapsupport::); 1032cf::map->attach (prio => -10000, package => cf::mapsupport::);
993 1033
994############################################################################# 1034#############################################################################
995# load/save perl data associated with player->ob objects
996
997sub all_objects(@) {
998 @_, map all_objects ($_->inv), @_
999}
1000
1001# TODO: compatibility cruft, remove when no longer needed
1002cf::player->attach (
1003 on_load => sub {
1004 my ($pl, $path) = @_;
1005
1006 for my $o (all_objects $pl->ob) {
1007 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008 $o->set_ob_key_value ("_perl_data");
1009
1010 %$o = %{ Storable::thaw pack "H*", $value };
1011 }
1012 }
1013 },
1014);
1015
1016#############################################################################
1017 1035
1018=head2 CORE EXTENSIONS 1036=head2 CORE EXTENSIONS
1019 1037
1020Functions and methods that extend core crossfire objects. 1038Functions and methods that extend core crossfire objects.
1021 1039
1040=cut
1041
1042package cf::player;
1043
1044use Coro::AIO;
1045
1022=head3 cf::player 1046=head3 cf::player
1023 1047
1024=over 4 1048=over 4
1025 1049
1026=item cf::player::exists $login 1050=item cf::player::find $login
1027 1051
1028Returns true when the given account exists. 1052Returns the given player object, loading it if necessary (might block).
1029 1053
1030=cut 1054=cut
1031 1055
1032sub cf::player::exists($) { 1056sub playerdir($) {
1033 cf::player::find $_[0] 1057 cf::localdir
1034 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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
1035} 1202}
1036 1203
1037=item $player->ext_reply ($msgid, $msgtype, %msg) 1204=item $player->ext_reply ($msgid, $msgtype, %msg)
1038 1205
1039Sends an ext reply to the player. 1206Sends an ext reply to the player.
1040 1207
1041=cut 1208=cut
1042 1209
1043sub cf::player::ext_reply($$$%) { 1210sub ext_reply($$$%) {
1044 my ($self, $id, %msg) = @_; 1211 my ($self, $id, %msg) = @_;
1045 1212
1046 $msg{msgid} = $id; 1213 $msg{msgid} = $id;
1047 1214
1048 $self->send ("ext " . to_json \%msg); 1215 $self->send ("ext " . cf::to_json \%msg);
1049} 1216}
1217
1218package cf;
1050 1219
1051=back 1220=back
1052 1221
1053 1222
1054=head3 cf::map 1223=head3 cf::map
1060package cf::map; 1229package cf::map;
1061 1230
1062use Fcntl; 1231use Fcntl;
1063use Coro::AIO; 1232use Coro::AIO;
1064 1233
1065our $MAX_RESET = 7200; 1234our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1235our $DEFAULT_RESET = 3000;
1067 1236
1068sub generate_random_map { 1237sub generate_random_map {
1069 my ($path, $rmp) = @_; 1238 my ($path, $rmp) = @_;
1070 1239
1071 # mit "rum" bekleckern, nicht 1240 # mit "rum" bekleckern, nicht
1087# and all this just because we cannot iterate over 1256# and all this just because we cannot iterate over
1088# all maps in C++... 1257# all maps in C++...
1089sub change_all_map_light { 1258sub change_all_map_light {
1090 my ($change) = @_; 1259 my ($change) = @_;
1091 1260
1092 $_->change_map_light ($change) for values %cf::MAP; 1261 $_->change_map_light ($change)
1262 for grep $_->outdoor, values %cf::MAP;
1093} 1263}
1094 1264
1095sub try_load_header($) { 1265sub try_load_header($) {
1096 my ($path) = @_; 1266 my ($path) = @_;
1097 1267
1100 or return; 1270 or return;
1101 1271
1102 my $map = cf::map::new 1272 my $map = cf::map::new
1103 or return; 1273 or return;
1104 1274
1275 # for better error messages only, will be overwritten
1276 $map->path ($path);
1277
1105 $map->load_header ($path) 1278 $map->load_header ($path)
1106 or return; 1279 or return;
1107 1280
1108 $map->{load_path} = $path; 1281 $map->{load_path} = $path;
1109 1282
1110 $map 1283 $map
1111} 1284}
1112 1285
1286sub find;
1113sub find_map { 1287sub find {
1114 my ($path, $origin) = @_; 1288 my ($path, $origin) = @_;
1115 1289
1116 #warn "find_map<$path,$origin>\n";#d# 1290 #warn "find<$path,$origin>\n";#d#
1117 1291
1118 $path = new cf::path $path, $origin && $origin->path; 1292 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string; 1293 my $key = $path->as_string;
1120 1294
1295 cf::lock_wait "map_find:$key";
1296
1121 $cf::MAP{$key} || do { 1297 $cf::MAP{$key} || do {
1298 my $guard = cf::lock_acquire "map_find:$key";
1299
1122 # do it the slow way 1300 # do it the slow way
1123 my $map = try_load_header $path->save_path; 1301 my $map = try_load_header $path->save_path;
1124 1302
1303 Coro::cede;
1304
1125 if ($map) { 1305 if ($map) {
1306 $map->last_access ((delete $map->{last_access})
1307 || $cf::RUNTIME); #d#
1126 # safety 1308 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME 1309 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME; 1310 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else { 1311 } else {
1130 if (my $rmp = $path->random_map_params) { 1312 if (my $rmp = $path->random_map_params) {
1135 1317
1136 $map or return; 1318 $map or return;
1137 1319
1138 $map->{load_original} = 1; 1320 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME; 1321 $map->{instantiate_time} = $cf::RUNTIME;
1322 $map->last_access ($cf::RUNTIME);
1140 $map->instantiate; 1323 $map->instantiate;
1141 1324
1142 # per-player maps become, after loading, normal maps 1325 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel}; 1326 $map->per_player (0) if $path->{user_rel};
1144 } 1327 }
1145 1328
1146 $map->path ($key); 1329 $map->path ($key);
1147 $map->{path} = $path; 1330 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME); 1331 $map->{last_save} = $cf::RUNTIME;
1332
1333 Coro::cede;
1149 1334
1150 if ($map->should_reset) { 1335 if ($map->should_reset) {
1151 $map->reset; 1336 $map->reset;
1337 undef $guard;
1152 $map = find_map $path; 1338 $map = find $path
1339 or return;
1153 } 1340 }
1154 1341
1155 $cf::MAP{$key} = $map 1342 $cf::MAP{$key} = $map
1156 } 1343 }
1157} 1344}
1158 1345
1159sub load { 1346sub load {
1160 my ($self) = @_; 1347 my ($self) = @_;
1161 1348
1349 my $path = $self->{path};
1350 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1351
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1352 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1353
1164 $self->in_memory (cf::MAP_LOADING); 1354 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167 1355
1168 $self->alloc; 1356 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1) 1357 $self->load_objects ($self->{load_path}, 1)
1170 or return; 1358 or return;
1171 1359
1177 if (aio_open $uniq, O_RDONLY, 0) { 1365 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1366 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1367 $self->load_objects ($uniq, 0);
1180 } 1368 }
1181 } 1369 }
1370
1371 Coro::cede;
1182 1372
1183 # now do the right thing for maps 1373 # now do the right thing for maps
1184 $self->link_multipart_objects; 1374 $self->link_multipart_objects;
1185 1375
1186 if ($self->{path}->is_style_map) { 1376 if ($self->{path}->is_style_map) {
1194 $self->difficulty ($self->estimate_difficulty) 1384 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1385 unless $self->difficulty;
1196 $self->activate; 1386 $self->activate;
1197 } 1387 }
1198 1388
1389 Coro::cede;
1390
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1391 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1392}
1201 1393
1202sub load_map_sync { 1394# find and load all maps in the 3x3 area around a map
1395sub load_diag {
1396 my ($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 $neigh->load;
1415 }
1416}
1417
1418sub find_sync {
1203 my ($path, $origin) = @_; 1419 my ($path, $origin) = @_;
1204 1420
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1421 cf::sync_job { find $path, $origin }
1422}
1206 1423
1207 cf::sync_job { 1424sub do_load_sync {
1208 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
1209 or return; 1435 or next;
1436 my $path = delete $MAP_PREFETCH{$key};
1437
1438 my $map = find $path
1439 or next;
1210 $map->load; 1440 $map->load;
1211 $map 1441 }
1442 Coro::schedule;
1212 } 1443 }
1444};
1445
1446sub find_async {
1447 my ($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 $MAP_PREFETCHER->ready;
1458
1459 ()
1213} 1460}
1214 1461
1215sub save { 1462sub save {
1216 my ($self) = @_; 1463 my ($self) = @_;
1217 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
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1471 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1472 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1473
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224
1225 $self->{load_path} = $save; 1474 $self->{load_path} = $save;
1226 1475
1227 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 $self->players;
1482 };
1228 1483
1229 if ($uniq) { 1484 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1485 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1486 $self->save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1487 } else {
1235} 1490}
1236 1491
1237sub swap_out { 1492sub swap_out {
1238 my ($self) = @_; 1493 my ($self) = @_;
1239 1494
1495 # save first because save cedes
1496 $self->save;
1497
1498 my $lock = cf::lock_acquire "map_data:" . $self->path;
1499
1240 return if $self->players; 1500 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1501 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1502 return if $self->{deny_save};
1243 1503
1244 $self->save;
1245 $self->clear; 1504 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1505 $self->in_memory (cf::MAP_SWAPPED);
1247} 1506}
1248 1507
1249sub reset_at { 1508sub reset_at {
1287} 1546}
1288 1547
1289sub reset { 1548sub reset {
1290 my ($self) = @_; 1549 my ($self) = @_;
1291 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1292 return if $self->players; 1553 return if $self->players;
1293 return if $self->{path}{user_rel};#d# 1554 return if $self->{path}{user_rel};#d#
1294 1555
1295 warn "resetting map ", $self->path;#d# 1556 warn "resetting map ", $self->path;#d#
1296 1557
1315 1576
1316sub customise_for { 1577sub customise_for {
1317 my ($map, $ob) = @_; 1578 my ($map, $ob) = @_;
1318 1579
1319 if ($map->per_player) { 1580 if ($map->per_player) {
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1581 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
1321 } 1582 }
1322 1583
1323 $map 1584 $map
1324} 1585}
1325 1586
1326sub emergency_save { 1587=item cf::map::unique_maps
1327 local $cf::FREEZE = 1;
1328 1588
1329 warn "enter emergency map save\n"; 1589Returns an arrayref of cf::path's of all shared maps that have
1590instantiated unique items. May block.
1330 1591
1331 cf::sync_job { 1592=cut
1332 warn "begin emergency map save\n"; 1593
1333 $_->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 $_;
1334 }; 1606 }
1335 1607
1336 warn "end emergency map save\n"; 1608 \@paths
1337} 1609}
1338 1610
1339package cf; 1611package cf;
1340 1612
1341=back 1613=back
1342 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
1343 1641
1344=head3 cf::object::player 1642=head3 cf::object::player
1345 1643
1346=over 4 1644=over 4
1347 1645
1383 (ref $cf::CFG{"may_$access"} 1681 (ref $cf::CFG{"may_$access"}
1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1682 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385 : $cf::CFG{"may_$access"}) 1683 : $cf::CFG{"may_$access"})
1386} 1684}
1387 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, $y)
1694
1695Moves the player out of the specila link map onto the given map. If the
1696map is not valid (or omitted), the player will be moved back to the
1697location he/she was before the call to C<enter_link>, or, if that fails,
1698to the emergency map position.
1699
1700Might block.
1701
1702=cut
1703
1388sub cf::object::player::enter_link { 1704sub cf::object::player::enter_link {
1389 my ($self) = @_; 1705 my ($self) = @_;
1390 1706
1707 $self->deactivate_recursive;
1708
1391 return if $self->map == $LINK_MAP; 1709 return if $self->map == $LINK_MAP;
1392 1710
1393 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1711 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394 if $self->map; 1712 if $self->map;
1395 1713
1396 $self->enter_map ($LINK_MAP, 20, 20); 1714 $self->enter_map ($LINK_MAP, 20, 20);
1397 $self->deactivate_recursive;
1398} 1715}
1399 1716
1400sub cf::object::player::leave_link { 1717sub cf::object::player::leave_link {
1401 my ($self, $map, $x, $y) = @_; 1718 my ($self, $map, $x, $y) = @_;
1402 1719
1403 my $link_pos = delete $self->{_link_pos}; 1720 my $link_pos = delete $self->{_link_pos};
1404 1721
1405 unless ($map) { 1722 unless ($map) {
1406 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408 # restore original map position 1723 # restore original map position
1409 ($map, $x, $y) = @{ $link_pos || [] }; 1724 ($map, $x, $y) = @{ $link_pos || [] };
1410 $map = cf::map::find_map $map; 1725 $map = cf::map::find $map;
1411 1726
1412 unless ($map) { 1727 unless ($map) {
1413 ($map, $x, $y) = @$EMERGENCY_POSITION; 1728 ($map, $x, $y) = @$EMERGENCY_POSITION;
1414 $map = cf::map::find_map $map 1729 $map = cf::map::find $map
1415 or die "FATAL: cannot load emergency map\n"; 1730 or die "FATAL: cannot load emergency map\n";
1416 } 1731 }
1417 } 1732 }
1418 1733
1419 ($x, $y) = (-1, -1) 1734 ($x, $y) = (-1, -1)
1422 # use -1 or undef as default coordinates, not 0, 0 1737 # use -1 or undef as default coordinates, not 0, 0
1423 ($x, $y) = ($map->enter_x, $map->enter_y) 1738 ($x, $y) = ($map->enter_x, $map->enter_y)
1424 if $x <=0 && $y <= 0; 1739 if $x <=0 && $y <= 0;
1425 1740
1426 $map->load; 1741 $map->load;
1742 $map->load_diag;
1427 1743
1744 return unless $self->contr->active;
1428 $self->activate_recursive; 1745 $self->activate_recursive;
1429 $self->enter_map ($map, $x, $y); 1746 $self->enter_map ($map, $x, $y);
1430} 1747}
1431 1748
1749cf::player->attach (
1750 on_logout => sub {
1751 my ($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
1432=item $player_object->goto_map ($map, $x, $y) 1781=item $player_object->goto ($path, $x, $y)
1433 1782
1434=cut 1783=cut
1435 1784
1436sub cf::object::player::goto_map { 1785sub cf::object::player::goto {
1437 my ($self, $path, $x, $y) = @_; 1786 my ($self, $path, $x, $y) = @_;
1438 1787
1788 $path = new cf::path $path;
1789
1439 $self->enter_link; 1790 $self->enter_link;
1440 1791
1441 (Coro::async { 1792 (async {
1442 $path = new cf::path $path;
1443
1444 my $map = cf::map::find_map $path->as_string; 1793 my $map = cf::map::find $path->as_string;
1445 $map = $map->customise_for ($self) if $map; 1794 $map = $map->customise_for ($self) if $map;
1446 1795
1447 warn "entering ", $map->path, " at ($x, $y)\n" 1796# warn "entering ", $map->path, " at ($x, $y)\n"
1448 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);
1449 1800
1450 $self->leave_link ($map, $x, $y); 1801 $self->leave_link ($map, $x, $y);
1451 })->prio (1); 1802 })->prio (1);
1452} 1803}
1453 1804
1506 1857
1507 return unless $self->type == cf::PLAYER; 1858 return unless $self->type == cf::PLAYER;
1508 1859
1509 $self->enter_link; 1860 $self->enter_link;
1510 1861
1511 (Coro::async { 1862 (async {
1863 $self->deactivate_recursive; # just to be sure
1512 unless (eval { 1864 unless (eval {
1513
1514 prepare_random_map $exit 1865 prepare_random_map $exit
1515 if $exit->slaying eq "/!"; 1866 if $exit->slaying eq "/!";
1516 1867
1517 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;
1518 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); 1869 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1519 1870
1520 1; 1871 1;
1521 }) { 1872 }) {
1522 $self->message ("Something went wrong deep within the crossfire server. " 1873 $self->message ("Something went wrong deep within the crossfire server. "
1523 . "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. "
1524 . "Please report this to the dungeon master", 1875 . "Please report this to the dungeon master!",
1525 cf::NDI_UNIQUE | cf::NDI_RED); 1876 cf::NDI_UNIQUE | cf::NDI_RED);
1526 1877
1527 warn "ERROR in enter_exit: $@"; 1878 warn "ERROR in enter_exit: $@";
1528 $self->leave_link; 1879 $self->leave_link;
1529 } 1880 }
1580 on_reply => sub { 1931 on_reply => sub {
1581 my ($ns, $msg) = @_; 1932 my ($ns, $msg) = @_;
1582 1933
1583 # this weird shuffling is so that direct followup queries 1934 # this weird shuffling is so that direct followup queries
1584 # get handled first 1935 # get handled first
1585 my $queue = delete $ns->{query_queue}; 1936 my $queue = delete $ns->{query_queue}
1937 or return; # be conservative, not sure how that can happen, but we saw a crash here
1586 1938
1587 (shift @$queue)->[1]->($msg); 1939 (shift @$queue)->[1]->($msg);
1588 1940
1589 push @{ $ns->{query_queue} }, @$queue; 1941 push @{ $ns->{query_queue} }, @$queue;
1590 1942
1596 } 1948 }
1597 } 1949 }
1598 }, 1950 },
1599); 1951);
1600 1952
1601=item $client->coro (\&cb) 1953=item $client->async (\&cb)
1602 1954
1603Create a new coroutine, running the specified callback. The coroutine will 1955Create a new coroutine, running the specified callback. The coroutine will
1604be automatically cancelled when the client gets destroyed (e.g. on logout, 1956be automatically cancelled when the client gets destroyed (e.g. on logout,
1605or loss of connection). 1957or loss of connection).
1606 1958
1607=cut 1959=cut
1608 1960
1609sub cf::client::coro { 1961sub cf::client::async {
1610 my ($self, $cb) = @_; 1962 my ($self, $cb) = @_;
1611 1963
1612 my $coro; $coro = async { 1964 my $coro = &Coro::async ($cb);
1613 eval {
1614 $cb->();
1615 };
1616 warn $@ if $@;
1617 };
1618 1965
1619 $coro->on_destroy (sub { 1966 $coro->on_destroy (sub {
1620 delete $self->{_coro}{$coro+0}; 1967 delete $self->{_coro}{$coro+0};
1621 }); 1968 });
1622 1969
1794 2141
1795{ 2142{
1796 my $path = cf::localdir . "/database.pst"; 2143 my $path = cf::localdir . "/database.pst";
1797 2144
1798 sub db_load() { 2145 sub db_load() {
1799 warn "loading database $path\n";#d# remove later
1800 $DB = stat $path ? Storable::retrieve $path : { }; 2146 $DB = stat $path ? Storable::retrieve $path : { };
1801 } 2147 }
1802 2148
1803 my $pid; 2149 my $pid;
1804 2150
1805 sub db_save() { 2151 sub db_save() {
1806 warn "saving database $path\n";#d# remove later
1807 waitpid $pid, 0 if $pid; 2152 waitpid $pid, 0 if $pid;
1808 if (0 == ($pid = fork)) { 2153 if (0 == ($pid = fork)) {
1809 $DB->{_meta}{version} = 1; 2154 $DB->{_meta}{version} = 1;
1810 Storable::nstore $DB, "$path~"; 2155 Storable::nstore $DB, "$path~";
1811 rename "$path~", $path; 2156 rename "$path~", $path;
1859 open my $fh, "<:utf8", cf::confdir . "/config" 2204 open my $fh, "<:utf8", cf::confdir . "/config"
1860 or return; 2205 or return;
1861 2206
1862 local $/; 2207 local $/;
1863 *CFG = YAML::Syck::Load <$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 }
1864} 2222}
1865 2223
1866sub main { 2224sub main {
1867 # we must not ever block the main coroutine 2225 # we must not ever block the main coroutine
1868 local $Coro::idle = sub { 2226 local $Coro::idle = sub {
1869 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#
1870 (Coro::unblock_sub {
1871 Event::one_event; 2228 async { Event::one_event };
1872 })->();
1873 }; 2229 };
1874 2230
1875 cfg_load; 2231 cfg_load;
1876 db_load; 2232 db_load;
1877 load_extensions; 2233 load_extensions;
1878 Event::loop; 2234 Event::loop;
1879} 2235}
1880 2236
1881############################################################################# 2237#############################################################################
1882# 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 $map->save;
2275 }
2276 warn "end emergency map save\n";
2277 };
2278
2279 warn "leave emergency perl save\n";
2280}
1883 2281
1884sub reload() { 2282sub reload() {
1885 # can/must only be called in main 2283 # can/must only be called in main
1886 if ($Coro::current != $Coro::main) { 2284 if ($Coro::current != $Coro::main) {
1887 warn "can only reload from main coroutine\n"; 2285 warn "can only reload from main coroutine\n";
1888 return; 2286 return;
1889 } 2287 }
1890 2288
1891 warn "reloading..."; 2289 warn "reloading...";
1892 2290
1893 local $FREEZE = 1; 2291 warn "freezing server";
2292 my $guard = freeze_mainloop;
1894 cf::emergency_save; 2293 cf::emergency_save;
2294
2295 warn "sync database to disk";
2296 cf::db_sync;
2297 IO::AIO::flush;
1895 2298
1896 eval { 2299 eval {
1897 # 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
1898 2301
1899 # cancel all watchers 2302 warn "cancel all watchers";
1900 for (Event::all_watchers) { 2303 for (Event::all_watchers) {
1901 $_->cancel if $_->data & WF_AUTOCANCEL; 2304 $_->cancel if $_->data & WF_AUTOCANCEL;
1902 } 2305 }
1903 2306
1904 # cancel all extension coros 2307 warn "cancel all extension coros";
1905 $_->cancel for values %EXT_CORO; 2308 $_->cancel for values %EXT_CORO;
1906 %EXT_CORO = (); 2309 %EXT_CORO = ();
1907 2310
2311 warn "remove commands";
2312 %COMMAND = ();
2313
2314 warn "remove ext commands";
2315 %EXTCMD = ();
2316
1908 # unload all extensions 2317 warn "unload/nuke all extensions";
1909 for (@exts) { 2318 for my $pkg (@EXTS) {
1910 warn "unloading <$_>"; 2319 warn "... unloading $pkg";
1911 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: $@";
1912 } 2326 }
1913 2327
2328 warn "... nuking $pkg";
2329 Symbol::delete_package $pkg;
2330 }
2331
1914 # unload all modules loaded from $LIBDIR 2332 warn "unload all perl modules loaded from $LIBDIR";
1915 while (my ($k, $v) = each %INC) { 2333 while (my ($k, $v) = each %INC) {
1916 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2334 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1917 2335
1918 warn "removing <$k>"; 2336 warn "removing <$k>";
1919 delete $INC{$k}; 2337 delete $INC{$k};
1926 } 2344 }
1927 2345
1928 Symbol::delete_package $k; 2346 Symbol::delete_package $k;
1929 } 2347 }
1930 2348
1931 # sync database to disk
1932 cf::db_sync;
1933 IO::AIO::flush;
1934
1935 # get rid of safe::, as good as possible 2349 warn "get rid of safe::, as good as possible";
1936 Symbol::delete_package "safe::$_" 2350 Symbol::delete_package "safe::$_"
1937 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2351 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1938 2352
1939 # remove register_script_function callbacks
1940 # TODO
1941
1942 # unload cf.pm "a bit" 2353 warn "unload cf.pm \"a bit\"";
1943 delete $INC{"cf.pm"}; 2354 delete $INC{"cf.pm"};
1944 2355
1945 # don't, removes xs symbols, too, 2356 # don't, removes xs symbols, too,
1946 # and global variables created in xs 2357 # and global variables created in xs
1947 #Symbol::delete_package __PACKAGE__; 2358 #Symbol::delete_package __PACKAGE__;
1948 2359
1949 # reload cf.pm
1950 warn "reloading cf.pm"; 2360 warn "reloading cf.pm";
1951 require cf; 2361 require cf;
1952 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2362 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1953 2363
1954 # load config and database again 2364 warn "load config and database again";
1955 cf::cfg_load; 2365 cf::cfg_load;
1956 cf::db_load; 2366 cf::db_load;
1957 2367
1958 # load extensions
1959 warn "load extensions"; 2368 warn "load extensions";
1960 cf::load_extensions; 2369 cf::load_extensions;
1961 2370
1962 # reattach attachments to objects 2371 warn "reattach attachments to objects/players";
1963 warn "reattach";
1964 _global_reattach; 2372 _global_reattach;
2373 warn "reattach attachments to maps";
2374 reattach $_ for values %MAP;
1965 }; 2375 };
1966 2376
1967 if ($@) { 2377 if ($@) {
1968 warn $@; 2378 warn $@;
1969 warn "error while reloading, exiting."; 2379 warn "error while reloading, exiting.";
1970 exit 1; 2380 exit 1;
1971 } 2381 }
1972 2382
1973 warn "reloaded successfully"; 2383 warn "reloaded";
1974}; 2384};
1975 2385
1976############################################################################# 2386#############################################################################
1977 2387
1978unless ($LINK_MAP) { 2388unless ($LINK_MAP) {
1985 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path"; 2395 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986 $LINK_MAP->in_memory (MAP_IN_MEMORY); 2396 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1987 2397
1988 # dirty hack because... archetypes are not yet loaded 2398 # dirty hack because... archetypes are not yet loaded
1989 Event->timer ( 2399 Event->timer (
1990 after => 2, 2400 after => 10,
1991 cb => sub { 2401 cb => sub {
1992 $_[0]->w->cancel; 2402 $_[0]->w->cancel;
1993 2403
1994 # provide some exits "home" 2404 # provide some exits "home"
1995 my $exit = cf::object::new "exit"; 2405 my $exit = cf::object::new "exit";
2014 $LINK_MAP->{deny_reset} = 1; 2424 $LINK_MAP->{deny_reset} = 1;
2015 2425
2016 $cf::MAP{$LINK_MAP->path} = $LINK_MAP; 2426 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2017} 2427}
2018 2428
2019register "<global>", __PACKAGE__;
2020
2021register_command "reload" => sub { 2429register_command "reload" => sub {
2022 my ($who, $arg) = @_; 2430 my ($who, $arg) = @_;
2023 2431
2024 if ($who->flag (FLAG_WIZ)) { 2432 if ($who->flag (FLAG_WIZ)) {
2025 $who->message ("start of reload."); 2433 $who->message ("start of reload.");
2034 reentrant => 0, 2442 reentrant => 0,
2035 prio => 0, 2443 prio => 0,
2036 at => $NEXT_TICK || $TICK, 2444 at => $NEXT_TICK || $TICK,
2037 data => WF_AUTOCANCEL, 2445 data => WF_AUTOCANCEL,
2038 cb => sub { 2446 cb => sub {
2039 unless ($FREEZE) {
2040 cf::server_tick; # one server iteration 2447 cf::server_tick; # one server iteration
2041 $RUNTIME += $TICK; 2448 $RUNTIME += $TICK;
2042 }
2043
2044 $NEXT_TICK += $TICK; 2449 $NEXT_TICK += $TICK;
2450
2451 $WAIT_FOR_TICK->broadcast;
2452 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2045 2453
2046 # if we are delayed by four ticks or more, skip them all 2454 # if we are delayed by four ticks or more, skip them all
2047 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2455 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2048 2456
2049 $TICK_WATCHER->at ($NEXT_TICK); 2457 $TICK_WATCHER->at ($NEXT_TICK);
2071 or warn "ERROR: unable to write runtime file: $!"; 2479 or warn "ERROR: unable to write runtime file: $!";
2072 })->(); 2480 })->();
2073 }, 2481 },
2074); 2482);
2075 2483
2484END { cf::emergency_save }
2485
20761 24861
2077 2487

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