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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.284 by root, Sun Jun 24 04:15:42 2007 UTC

90our $LINK_MAP; # the special {link} map, which is always available 90our $LINK_MAP; # the special {link} map, which is always available
91 91
92# used to convert map paths into valid unix filenames by replacing / by ∕ 92# used to convert map paths into valid unix filenames by replacing / by ∕
93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94 94
95our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96our $LOADAVG; # same thing, but with alpha-smoothing
97our $tick_start; # for load detecting purposes
98
95binmode STDOUT; 99binmode STDOUT;
96binmode STDERR; 100binmode STDERR;
97 101
98# read virtual server time, if available 102# read virtual server time, if available
99unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 103unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
139 143
140=item $cf::TICK 144=item $cf::TICK
141 145
142The interval between server ticks, in seconds. 146The interval between server ticks, in seconds.
143 147
148=item $cf::LOADAVG
149
150The current CPU load on the server (alpha-smoothed), as a value between 0
151(none) and 1 (overloaded), indicating how much time is spent on processing
152objects per tick. Healthy values are < 0.5.
153
154=item $cf::LOAD
155
156The raw value load value from the last tick.
157
144=item %cf::CFG 158=item %cf::CFG
145 159
146Configuration for the server, loaded from C</etc/crossfire/config>, or 160Configuration for the server, loaded from C</etc/crossfire/config>, or
147from wherever your confdir points to. 161from wherever your confdir points to.
148 162
173@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 187@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 188@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 189@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 190@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 191@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
192@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 193@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179 194
180# we bless all objects into (empty) derived classes to force a method lookup 195# we bless all objects into (empty) derived classes to force a method lookup
181# within the Safe compartment. 196# within the Safe compartment.
182for my $pkg (qw( 197for my $pkg (qw(
183 cf::global cf::attachable 198 cf::global cf::attachable
191} 206}
192 207
193$Event::DIED = sub { 208$Event::DIED = sub {
194 warn "error in event callback: @_"; 209 warn "error in event callback: @_";
195}; 210};
211
212#############################################################################
196 213
197=head2 UTILITY FUNCTIONS 214=head2 UTILITY FUNCTIONS
198 215
199=over 4 216=over 4
200 217
303 320
304BEGIN { *async = \&Coro::async_pool } 321BEGIN { *async = \&Coro::async_pool }
305 322
306=item cf::sync_job { BLOCK } 323=item cf::sync_job { BLOCK }
307 324
308The design of crossfire+ requires that the main coro ($Coro::main) is 325The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309always able to handle events or runnable, as crossfire+ is only partly 326is always able to handle events or runnable, as Crossfire TRT is only
310reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 327partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
328acceptable.
311 329
312If it must be done, put the blocking parts into C<sync_job>. This will run 330If it must be done, put the blocking parts into C<sync_job>. This will run
313the given BLOCK in another coroutine while waiting for the result. The 331the given BLOCK in another coroutine while waiting for the result. The
314server will be frozen during this time, so the block should either finish 332server will be frozen during this time, so the block should either finish
315fast or be very important. 333fast or be very important.
318 336
319sub sync_job(&) { 337sub sync_job(&) {
320 my ($job) = @_; 338 my ($job) = @_;
321 339
322 if ($Coro::current == $Coro::main) { 340 if ($Coro::current == $Coro::main) {
341 my $time = Event::time;
342
323 # this is the main coro, too bad, we have to block 343 # this is the main coro, too bad, we have to block
324 # till the operation succeeds, freezing the server :/ 344 # till the operation succeeds, freezing the server :/
325 345
326 # TODO: use suspend/resume instead 346 # TODO: use suspend/resume instead
327 # (but this is cancel-safe) 347 # (but this is cancel-safe)
338 358
339 while ($busy) { 359 while ($busy) {
340 Coro::cede or Event::one_event; 360 Coro::cede or Event::one_event;
341 } 361 }
342 362
363 $time = Event::time - $time;
364
365 LOG llevError | logBacktrace, Carp::longmess "long sync job"
366 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
367
368 $tick_start += $time; # do not account sync jobs to server load
369
343 wantarray ? @res : $res[0] 370 wantarray ? @res : $res[0]
344 } else { 371 } else {
345 # we are in another coroutine, how wonderful, everything just works 372 # we are in another coroutine, how wonderful, everything just works
346 373
347 $job->() 374 $job->()
366 $EXT_CORO{$coro+0} = $coro; 393 $EXT_CORO{$coro+0} = $coro;
367 394
368 $coro 395 $coro
369} 396}
370 397
371sub write_runtime { 398=item fork_call { }, $args
372 my $runtime = "$LOCALDIR/runtime";
373 399
374 # first touch the runtime file to show we are still running: 400Executes the given code block with the given arguments in a seperate
375 # the fsync below can take a very very long time. 401process, returning the results. Everything must be serialisable with
402Coro::Storable. May, of course, block. Note that the executed sub may
403never block itself or use any form of Event handling.
376 404
377 warn "touching runtime...\n";#d# 405=cut
378 if (my $fh = aio_open $runtime, O_WRONLY, 0) {
379 utime undef, undef, $fh;
380 }
381 406
382 my $guard = cf::lock_acquire "write_runtime"; 407sub fork_call(&@) {
408 my ($cb, @args) = @_;
383 409
384 warn "starting to write runtime...\n";#d# 410# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
385 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 411# or die "socketpair: $!";
386 or return; 412 pipe my $fh1, my $fh2
413 or die "pipe: $!";
387 414
388 my $value = $cf::RUNTIME + 90 + 10; 415 if (my $pid = fork) {
389 # 10 is the runtime save interval, for a monotonic clock
390 # 60 allows for the watchdog to kill the server.
391
392 (aio_write $fh, 0, (length $value), $value, 0) <= 0
393 and return;
394
395 # always fsync - this file is important
396 aio_fsync $fh
397 and return;
398
399 # touch it again to show we are up-to-date
400 utime undef, undef, $fh;
401
402 close $fh 416 close $fh2;
403 or return;
404 417
405 aio_rename "$runtime~", $runtime 418 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
406 and return; 419 $res = Coro::Storable::thaw $res;
407 420
408 warn "... done writing runtime.\n";#d# 421 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
409 422
423 die $$res unless "ARRAY" eq ref $res;
424
425 return wantarray ? @$res : $res->[-1];
426 } else {
427 reset_signals;
428 local $SIG{__WARN__};
429 local $SIG{__DIE__};
430 eval {
431 close $fh1;
432
433 my @res = eval { $cb->(@args) };
434 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
435 };
436
437 warn $@ if $@;
438 _exit 0;
410 1 439 }
440}
441
442=item $value = cf::db_get $family => $key
443
444Returns a single value from the environment database.
445
446=item cf::db_put $family => $key => $value
447
448Stores the given C<$value> in the family. It can currently store binary
449data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
450
451=cut
452
453our $DB;
454
455sub db_init {
456 unless ($DB) {
457 $DB = BDB::db_create $DB_ENV;
458
459 cf::sync_job {
460 eval {
461 $DB->set_flags (BDB::CHKSUM);
462
463 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
464 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
465 cf::cleanup "db_open(db): $!" if $!;
466 };
467 cf::cleanup "db_open(db): $@" if $@;
468 };
469 }
470}
471
472sub db_get($$) {
473 my $key = "$_[0]/$_[1]";
474
475 cf::sync_job {
476 BDB::db_get $DB, undef, $key, my $data;
477
478 $! ? ()
479 : $data
480 }
481}
482
483sub db_put($$$) {
484 BDB::dbreq_pri 4;
485 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
486}
487
488=item cf::cache $id => [$paths...], $processversion => $process
489
490Generic caching function that returns the value of the resource $id,
491caching and regenerating as required.
492
493This function can block.
494
495=cut
496
497sub cache {
498 my ($id, $src, $processversion, $process) = @_;
499
500 my $meta =
501 join "\x00",
502 $processversion,
503 map {
504 aio_stat $_
505 and Carp::croak "$_: $!";
506
507 ($_, (stat _)[7,9])
508 } @$src;
509
510 my $dbmeta = db_get cache => "$id/meta";
511 if ($dbmeta ne $meta) {
512 # changed, we may need to process
513
514 my @data;
515 my $md5;
516
517 for (0 .. $#$src) {
518 0 <= aio_load $src->[$_], $data[$_]
519 or Carp::croak "$src->[$_]: $!";
520 }
521
522 # if processing is expensive, check
523 # checksum first
524 if (1) {
525 $md5 =
526 join "\x00",
527 $processversion,
528 map {
529 Coro::cede;
530 ($src->[$_], Digest::MD5::md5_hex $data[$_])
531 } 0.. $#$src;
532
533
534 my $dbmd5 = db_get cache => "$id/md5";
535 if ($dbmd5 eq $md5) {
536 db_put cache => "$id/meta", $meta;
537
538 return db_get cache => "$id/data";
539 }
540 }
541
542 my $t1 = Time::HiRes::time;
543 my $data = $process->(\@data);
544 my $t2 = Time::HiRes::time;
545
546 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
547
548 db_put cache => "$id/data", $data;
549 db_put cache => "$id/md5" , $md5;
550 db_put cache => "$id/meta", $meta;
551
552 return $data;
553 }
554
555 db_get cache => "$id/data"
411} 556}
412 557
413=item cf::datalog type => key => value, ... 558=item cf::datalog type => key => value, ...
414 559
415Log a datalog packet of the given type with the given key-value pairs. 560Log a datalog packet of the given type with the given key-value pairs.
433attach callbacks/event handlers (a collection of which is called an "attachment") 578attach callbacks/event handlers (a collection of which is called an "attachment")
434to it. All such attachable objects support the following methods. 579to it. All such attachable objects support the following methods.
435 580
436In the following description, CLASS can be any of C<global>, C<object> 581In the following description, CLASS can be any of C<global>, C<object>
437C<player>, C<client> or C<map> (i.e. the attachable objects in 582C<player>, C<client> or C<map> (i.e. the attachable objects in
438crossfire+). 583Crossfire TRT).
439 584
440=over 4 585=over 4
441 586
442=item $attachable->attach ($attachment, key => $value...) 587=item $attachable->attach ($attachment, key => $value...)
443 588
606 $registry = $CB_TYPE[$object_type] ||= []; 751 $registry = $CB_TYPE[$object_type] ||= [];
607 752
608 } elsif ($type eq "subtype") { 753 } elsif ($type eq "subtype") {
609 defined $object_type or Carp::croak "subtype specified without type"; 754 defined $object_type or Carp::croak "subtype specified without type";
610 my $object_subtype = shift @arg; 755 my $object_subtype = shift @arg;
611 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 756 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612 757
613 } elsif ($type eq "package") { 758 } elsif ($type eq "package") {
614 my $pkg = shift @arg; 759 my $pkg = shift @arg;
615 760
616 while (my ($name, $id) = each %cb_id) { 761 while (my ($name, $id) = each %cb_id) {
645 _attach $registry, $klass, @attach; 790 _attach $registry, $klass, @attach;
646 } 791 }
647 792
648 $obj->{$name} = \%arg; 793 $obj->{$name} = \%arg;
649 } else { 794 } else {
650 warn "object uses attachment '$name' that is not available, postponing.\n"; 795 warn "object uses attachment '$name' which is not available, postponing.\n";
651 } 796 }
652 797
653 $obj->{_attachment}{$name} = undef; 798 $obj->{_attachment}{$name} = undef;
654} 799}
655 800
657 if (ref $_[0]) { 802 if (ref $_[0]) {
658 _object_attach @_; 803 _object_attach @_;
659 } else { 804 } else {
660 _attach shift->_attach_registry, @_; 805 _attach shift->_attach_registry, @_;
661 } 806 }
807 _recalc_want;
662}; 808};
663 809
664# all those should be optimised 810# all those should be optimised
665sub cf::attachable::detach { 811sub cf::attachable::detach {
666 my ($obj, $name) = @_; 812 my ($obj, $name) = @_;
669 delete $obj->{_attachment}{$name}; 815 delete $obj->{_attachment}{$name};
670 reattach ($obj); 816 reattach ($obj);
671 } else { 817 } else {
672 Carp::croak "cannot, currently, detach class attachments"; 818 Carp::croak "cannot, currently, detach class attachments";
673 } 819 }
820 _recalc_want;
674}; 821};
675 822
676sub cf::attachable::attached { 823sub cf::attachable::attached {
677 my ($obj, $name) = @_; 824 my ($obj, $name) = @_;
678 825
851 or return; 998 or return;
852 $av = eval { (Storable::thaw $av)->{objs} }; 999 $av = eval { (Storable::thaw $av)->{objs} };
853 } 1000 }
854 1001
855 warn sprintf "loading %s (%d)\n", 1002 warn sprintf "loading %s (%d)\n",
856 $filename, length $data, scalar @{$av || []};#d# 1003 $filename, length $data, scalar @{$av || []};
857 return ($data, $av); 1004 return ($data, $av);
858} 1005}
1006
1007=head2 COMMAND CALLBACKS
1008
1009=over 4
1010
1011=cut
859 1012
860############################################################################# 1013#############################################################################
861# command handling &c 1014# command handling &c
862 1015
863=item cf::register_command $name => \&callback($ob,$args); 1016=item cf::register_command $name => \&callback($ob,$args);
876 push @{ $COMMAND{$name} }, [$caller, $cb]; 1029 push @{ $COMMAND{$name} }, [$caller, $cb];
877} 1030}
878 1031
879=item cf::register_extcmd $name => \&callback($pl,$packet); 1032=item cf::register_extcmd $name => \&callback($pl,$packet);
880 1033
881Register a callbackf ro execution when the client sends an extcmd packet. 1034Register a callback fro execution when the client sends an extcmd packet.
882 1035
883If the callback returns something, it is sent back as if reply was being 1036If the callback returns something, it is sent back as if reply was being
884called. 1037called.
885 1038
886=cut 1039=cut
921 1074
922 cf::override; 1075 cf::override;
923 }, 1076 },
924); 1077);
925 1078
926sub load_extension {
927 my ($path) = @_;
928
929 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
930 my $base = $1;
931 my $pkg = $1;
932 $pkg =~ s/[^[:word:]]/_/g;
933 $pkg = "ext::$pkg";
934
935 warn "... loading '$path' into '$pkg'\n";
936
937 open my $fh, "<:utf8", $path
938 or die "$path: $!";
939
940 my $source =
941 "package $pkg; use strict; use utf8;\n"
942 . "#line 1 \"$path\"\n{\n"
943 . (do { local $/; <$fh> })
944 . "\n};\n1";
945
946 unless (eval $source) {
947 my $msg = $@ ? "$path: $@\n"
948 : "extension disabled.\n";
949 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950 warn $@;
951 warn "mandatory extension failed to load, exiting.\n";
952 exit 1;
953 }
954 die $@;
955 }
956
957 push @EXTS, $pkg;
958}
959
960sub load_extensions { 1079sub load_extensions {
1080 cf::sync_job {
1081 my %todo;
1082
961 for my $ext (<$LIBDIR/*.ext>) { 1083 for my $path (<$LIBDIR/*.ext>) {
962 next unless -r $ext; 1084 next unless -r $path;
963 eval { 1085
964 load_extension $ext; 1086 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1087 my $base = $1;
1088 my $pkg = $1;
1089 $pkg =~ s/[^[:word:]]/_/g;
1090 $pkg = "ext::$pkg";
1091
1092 open my $fh, "<:utf8", $path
1093 or die "$path: $!";
1094
1095 my $source = do { local $/; <$fh> };
1096
1097 my %ext = (
1098 path => $path,
1099 base => $base,
1100 pkg => $pkg,
1101 );
1102
1103 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1104 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1105
1106 $ext{source} =
1107 "package $pkg; use strict; use utf8;\n"
1108 . "#line 1 \"$path\"\n{\n"
1109 . $source
1110 . "\n};\n1";
1111
1112 $todo{$base} = \%ext;
1113 }
1114
1115 my %done;
1116 while (%todo) {
1117 my $progress;
1118
1119 while (my ($k, $v) = each %todo) {
1120 for (split /,\s*/, $v->{meta}{depends}) {
1121 goto skip
1122 unless exists $done{$_};
1123 }
1124
1125 warn "... loading '$k' into '$v->{pkg}'\n";
1126
1127 unless (eval $v->{source}) {
1128 my $msg = $@ ? "$v->{path}: $@\n"
1129 : "$v->{base}: extension inactive.\n";
1130
1131 if (exists $v->{meta}{mandatory}) {
1132 warn $msg;
1133 warn "mandatory extension failed to load, exiting.\n";
1134 exit 1;
1135 }
1136
1137 warn $msg;
1138 }
1139
1140 $done{$k} = delete $todo{$k};
1141 push @EXTS, $v->{pkg};
1142 $progress = 1;
965 1 1143 }
966 } or warn "$ext not loaded: $@"; 1144
1145 skip:
1146 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1147 unless $progress;
1148 }
967 } 1149 };
968} 1150}
969 1151
970############################################################################# 1152#############################################################################
1153
1154=back
971 1155
972=head2 CORE EXTENSIONS 1156=head2 CORE EXTENSIONS
973 1157
974Functions and methods that extend core crossfire objects. 1158Functions and methods that extend core crossfire objects.
975 1159
1163 } 1347 }
1164 1348
1165 \@paths 1349 \@paths
1166} 1350}
1167 1351
1352=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1353
1354Expand crossfire pod fragments into protocol xml.
1355
1356=cut
1357
1358sub expand_cfpod {
1359 ((my $self), (local $_)) = @_;
1360
1361 # escape & and <
1362 s/&/&amp;/g;
1363 s/(?<![BIUGH])</&lt;/g;
1364
1365 # this is buggy, it needs to properly take care of nested <'s
1366
1367 1 while
1368 # replace B<>, I<>, U<> etc.
1369 s/B<([^\>]*)>/<b>$1<\/b>/
1370 || s/I<([^\>]*)>/<i>$1<\/i>/
1371 || s/U<([^\>]*)>/<u>$1<\/u>/
1372 # replace G<male|female> tags
1373 || s{G<([^>|]*)\|([^>]*)>}{
1374 $self->gender ? $2 : $1
1375 }ge
1376 # replace H<hint text>
1377 || s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
1378
1379 # create single paragraphs (very hackish)
1380 s/(?<=\S)\n(?=\w)/ /g;
1381
1382 $_
1383}
1384
1168=item $player->ext_reply ($msgid, %msg) 1385=item $player->ext_reply ($msgid, %msg)
1169 1386
1170Sends an ext reply to the player. 1387Sends an ext reply to the player.
1171 1388
1172=cut 1389=cut
1199 1416
1200package cf::region; 1417package cf::region;
1201 1418
1202=item cf::region::find_by_path $path 1419=item cf::region::find_by_path $path
1203 1420
1204Tries to decuce the probable region for a map knowing only its path. 1421Tries to decuce the likely region for a map knowing only its path.
1205 1422
1206=cut 1423=cut
1207 1424
1208sub find_by_path($) { 1425sub find_by_path($) {
1209 my ($path) = @_; 1426 my ($path) = @_;
1283 my ($self, $merge) = @_; 1500 my ($self, $merge) = @_;
1284 1501
1285 # we have to keep some variables in memory intact 1502 # we have to keep some variables in memory intact
1286 local $self->{path}; 1503 local $self->{path};
1287 local $self->{load_path}; 1504 local $self->{load_path};
1288 local $self->{deny_save};
1289 local $self->{deny_reset};
1290 1505
1291 $self->SUPER::thawer_merge ($merge); 1506 $self->SUPER::thawer_merge ($merge);
1292} 1507}
1293 1508
1294sub normalise { 1509sub normalise {
1394 1609
1395 $_->change_map_light ($change) 1610 $_->change_map_light ($change)
1396 for grep $_->outdoor, values %cf::MAP; 1611 for grep $_->outdoor, values %cf::MAP;
1397} 1612}
1398 1613
1614sub decay_objects {
1615 my ($self) = @_;
1616
1617 return if $self->{deny_reset};
1618
1619 $self->do_decay_objects;
1620}
1621
1399sub unlink_save { 1622sub unlink_save {
1400 my ($self) = @_; 1623 my ($self) = @_;
1401 1624
1402 utf8::encode (my $save = $self->save_path); 1625 utf8::encode (my $save = $self->save_path);
1403 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1626 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1459 $self->load_header_orig 1682 $self->load_header_orig
1460 or return; 1683 or return;
1461 $self->prepare_orig; 1684 $self->prepare_orig;
1462 } 1685 }
1463 1686
1687 $self->{deny_reset} = 1
1688 if $self->no_reset;
1689
1464 $self->default_region (cf::region::find_by_path $self->{path}) 1690 $self->default_region (cf::region::find_by_path $self->{path})
1465 unless $self->default_region; 1691 unless $self->default_region;
1466 1692
1467 1 1693 1
1468} 1694}
1483 $map->{last_save} = $cf::RUNTIME; 1709 $map->{last_save} = $cf::RUNTIME;
1484 1710
1485 $map->load_header 1711 $map->load_header
1486 or return; 1712 or return;
1487 1713
1488 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?) 1714 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489 # doing this can freeze the server in a sync job, obviously 1715 # doing this can freeze the server in a sync job, obviously
1490 #$cf::WAIT_FOR_TICK->wait; 1716 #$cf::WAIT_FOR_TICK->wait;
1491 $map->reset; 1717 $map->reset;
1492 undef $guard; 1718 undef $guard;
1493 return find $path; 1719 return find $path;
1560 my ($self, $ob) = @_; 1786 my ($self, $ob) = @_;
1561 1787
1562 return find "~" . $ob->name . "/" . $self->{path} 1788 return find "~" . $ob->name . "/" . $self->{path}
1563 if $self->per_player; 1789 if $self->per_player;
1564 1790
1791# return find "?party/" . $ob->name . "/" . $self->{path}
1792# if $self->per_party;
1793
1565 $self 1794 $self
1566} 1795}
1567 1796
1568# find and load all maps in the 3x3 area around a map 1797# find and load all maps in the 3x3 area around a map
1569sub load_diag { 1798sub load_diag {
1679 1908
1680sub reset_at { 1909sub reset_at {
1681 my ($self) = @_; 1910 my ($self) = @_;
1682 1911
1683 # TODO: safety, remove and allow resettable per-player maps 1912 # TODO: safety, remove and allow resettable per-player maps
1684 return 1e99 if $self->isa ("ext::map_per_player");#d#
1685 return 1e99 if $self->{deny_reset}; 1913 return 1e99 if $self->{deny_reset};
1686 1914
1687 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1915 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1916 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689 1917
1700 my ($self) = @_; 1928 my ($self) = @_;
1701 1929
1702 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1930 my $lock = cf::lock_acquire "map_data:$self->{path}";
1703 1931
1704 return if $self->players; 1932 return if $self->players;
1705 return if $self->isa ("ext::map_per_player");#d#
1706 1933
1707 warn "resetting map ", $self->path;#d# 1934 warn "resetting map ", $self->path;
1708 1935
1709 $self->in_memory (cf::MAP_SWAPPED); 1936 $self->in_memory (cf::MAP_SWAPPED);
1710 1937
1711 # need to save uniques path 1938 # need to save uniques path
1712 unless ($self->{deny_save}) { 1939 unless ($self->{deny_save}) {
1744 $cf::MAP{$self->path} = $self; 1971 $cf::MAP{$self->path} = $self;
1745 1972
1746 $self->reset; # polite request, might not happen 1973 $self->reset; # polite request, might not happen
1747} 1974}
1748 1975
1976=item $maps = cf::map::tmp_maps
1977
1978Returns an arrayref with all map paths of currently instantiated and saved
1979maps. May block.
1980
1981=cut
1982
1983sub tmp_maps() {
1984 [
1985 map {
1986 utf8::decode $_;
1987 /\.map$/
1988 ? normalise $_
1989 : ()
1990 } @{ aio_readdir $TMPDIR or [] }
1991 ]
1992}
1993
1994=item $maps = cf::map::random_maps
1995
1996Returns an arrayref with all map paths of currently instantiated and saved
1997random maps. May block.
1998
1999=cut
2000
2001sub random_maps() {
2002 [
2003 map {
2004 utf8::decode $_;
2005 /\.map$/
2006 ? normalise "?random/$_"
2007 : ()
2008 } @{ aio_readdir $RANDOMDIR or [] }
2009 ]
2010}
2011
1749=item cf::map::unique_maps 2012=item cf::map::unique_maps
1750 2013
1751Returns an arrayref of paths of all shared maps that have 2014Returns an arrayref of paths of all shared maps that have
1752instantiated unique items. May block. 2015instantiated unique items. May block.
1753 2016
1754=cut 2017=cut
1755 2018
1756sub unique_maps() { 2019sub unique_maps() {
1757 my $files = aio_readdir $UNIQUEDIR 2020 [
1758 or return; 2021 map {
1759
1760 my @paths;
1761
1762 for (@$files) {
1763 utf8::decode $_; 2022 utf8::decode $_;
1764 next if /\.pst$/; 2023 /\.map$/
1765 next unless /^$PATH_SEP/o; 2024 ? normalise $_
1766 2025 : ()
1767 push @paths, cf::map::normalise $_; 2026 } @{ aio_readdir $UNIQUEDIR or [] }
1768 } 2027 ]
1769
1770 \@paths
1771} 2028}
1772 2029
1773package cf; 2030package cf;
1774 2031
1775=back 2032=back
1821 2078
1822 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2079 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823 2080
1824 if ($self->{record_replies}) { 2081 if ($self->{record_replies}) {
1825 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2082 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2083
1826 } else { 2084 } else {
2085 my $pl = $self->contr;
2086
2087 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2088 my $diag = $pl->{npc_dialog};
2089 $diag->{pl}->ext_reply (
2090 $diag->{id},
2091 msgtype => "reply",
2092 msg => $diag->{pl}->expand_cfpod ($msg),
2093 add_topics => []
2094 );
2095
2096 } else {
1827 $msg = $npc->name . " says: $msg" if $npc; 2097 $msg = $npc->name . " says: $msg" if $npc;
1828 $self->message ($msg, $flags); 2098 $self->message ($msg, $flags);
2099 }
1829 } 2100 }
1830} 2101}
1831 2102
1832=item $player_object->may ("access") 2103=item $player_object->may ("access")
1833 2104
1881 $self->deactivate_recursive; 2152 $self->deactivate_recursive;
1882 2153
1883 return if UNIVERSAL::isa $self->map, "ext::map_link"; 2154 return if UNIVERSAL::isa $self->map, "ext::map_link";
1884 2155
1885 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2156 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886 if $self->map; 2157 if $self->map && $self->map->{path} ne "{link}";
1887 2158
1888 $self->enter_map ($LINK_MAP || link_map, 10, 10); 2159 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1889} 2160}
1890 2161
1891sub cf::object::player::leave_link { 2162sub cf::object::player::leave_link {
1892 my ($self, $map, $x, $y) = @_; 2163 my ($self, $map, $x, $y) = @_;
2164
2165 return unless $self->contr->active;
1893 2166
1894 my $link_pos = delete $self->{_link_pos}; 2167 my $link_pos = delete $self->{_link_pos};
1895 2168
1896 unless ($map) { 2169 unless ($map) {
1897 # restore original map position 2170 # restore original map position
1920 2193
1921 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2194 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922 $self->enter_map ($map, $x, $y); 2195 $self->enter_map ($map, $x, $y);
1923} 2196}
1924 2197
1925cf::player->attach (
1926 on_logout => sub {
1927 my ($pl) = @_;
1928
1929 # abort map switching before logout
1930 if ($pl->ob->{_link_pos}) {
1931 cf::sync_job {
1932 $pl->ob->leave_link
1933 };
1934 }
1935 },
1936 on_login => sub {
1937 my ($pl) = @_;
1938
1939 # try to abort aborted map switching on player login :)
1940 # should happen only on crashes
1941 if ($pl->ob->{_link_pos}) {
1942 $pl->ob->enter_link;
1943 (async {
1944 $pl->ob->reply (undef,
1945 "There was an internal problem at your last logout, "
1946 . "the server will try to bring you to your intended destination in a second.",
1947 cf::NDI_RED);
1948 # we need this sleep as the login has a concurrent enter_exit running
1949 # and this sleep increases chances of the player not ending up in scorn
1950 Coro::Timer::sleep 1;
1951 $pl->ob->leave_link;
1952 })->prio (2);
1953 }
1954 },
1955);
1956
1957=item $player_object->goto ($path, $x, $y) 2198=item $player_object->goto ($path, $x, $y[, $check->($map)])
1958 2199
2200Moves the player to the given map-path and coordinates by first freezing
2201her, loading and preparing them map, calling the provided $check callback
2202that has to return the map if sucecssful, and then unfreezes the player on
2203the new (success) or old (failed) map position.
2204
1959=cut 2205=cut
2206
2207our $GOTOGEN;
1960 2208
1961sub cf::object::player::goto { 2209sub cf::object::player::goto {
1962 my ($self, $path, $x, $y) = @_; 2210 my ($self, $path, $x, $y, $check) = @_;
2211
2212 # do generation counting so two concurrent goto's will be executed in-order
2213 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963 2214
1964 $self->enter_link; 2215 $self->enter_link;
1965 2216
1966 (async { 2217 (async {
1967 my $map = eval { 2218 my $map = eval {
1968 my $map = cf::map::find $path; 2219 my $map = cf::map::find $path;
2220
2221 if ($map) {
1969 $map = $map->customise_for ($self) if $map; 2222 $map = $map->customise_for ($self);
2223 $map = $check->($map) if $check && $map;
2224 } else {
2225 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2226 }
2227
1970 $map 2228 $map
2229 };
2230
2231 if ($@) {
2232 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2233 LOG llevError | logBacktrace, Carp::longmess $@;
1971 } or 2234 }
1972 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973 2235
2236 if ($gen == $self->{_goto_generation}) {
2237 delete $self->{_goto_generation};
1974 $self->leave_link ($map, $x, $y); 2238 $self->leave_link ($map, $x, $y);
2239 }
1975 })->prio (1); 2240 })->prio (1);
1976} 2241}
1977 2242
1978=item $player_object->enter_exit ($exit_object) 2243=item $player_object->enter_exit ($exit_object)
1979 2244
2082sub cf::client::send_drawinfo { 2347sub cf::client::send_drawinfo {
2083 my ($self, $text, $flags) = @_; 2348 my ($self, $text, $flags) = @_;
2084 2349
2085 utf8::encode $text; 2350 utf8::encode $text;
2086 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text); 2351 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2352}
2353
2354=item $client->send_msg ($color, $type, $msg, [extra...])
2355
2356Send a drawinfo or msg packet to the client, formatting the msg for the
2357client if neccessary. C<$type> should be a string identifying the type of
2358the message, with C<log> being the default. If C<$color> is negative, suppress
2359the message unless the client supports the msg packet.
2360
2361=cut
2362
2363sub cf::client::send_msg {
2364 my ($self, $color, $type, $msg, @extra) = @_;
2365
2366 $msg = $self->pl->expand_cfpod ($msg);
2367
2368 if ($self->can_msg) {
2369 $self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
2370 } else {
2371 # replace some tags by gcfclient-compatible ones
2372 for ($msg) {
2373 1 while
2374 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2375 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2376 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2377 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2378 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${1}[\/color]/;
2379 }
2380
2381 if ($color >= 0) {
2382 if (0 && $msg =~ /\[/) {
2383 $self->send_packet ("drawextinfo $color 4 0 $msg")
2384 } else {
2385 s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2386 $self->send_packet ("drawinfo $color $msg")
2387 }
2388 }
2389 }
2087} 2390}
2088 2391
2089=item $client->ext_event ($type, %msg) 2392=item $client->ext_event ($type, %msg)
2090 2393
2091Sends an exti event to the client. 2394Sends an exti event to the client.
2293=back 2596=back
2294 2597
2295=cut 2598=cut
2296 2599
2297############################################################################# 2600#############################################################################
2298
2299=head2 EXTENSION DATABASE SUPPORT
2300
2301Crossfire maintains a very simple database for extension use. It can
2302currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303convert to/from binary).
2304
2305The parameter C<$family> should best start with the name of the extension
2306using it, it should be unique.
2307
2308=over 4
2309
2310=item $value = cf::db_get $family => $key
2311
2312Returns a single value from the database.
2313
2314=item cf::db_put $family => $key => $value
2315
2316Stores the given C<$value> in the family.
2317
2318=cut
2319
2320our $DB;
2321
2322sub db_init {
2323 unless ($DB) {
2324 $DB = BDB::db_create $DB_ENV;
2325
2326 cf::sync_job {
2327 eval {
2328 $DB->set_flags (BDB::CHKSUM);
2329
2330 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332 cf::cleanup "db_open(db): $!" if $!;
2333 };
2334 cf::cleanup "db_open(db): $@" if $@;
2335 };
2336 }
2337}
2338
2339sub db_get($$) {
2340 my $key = "$_[0]/$_[1]";
2341
2342 cf::sync_job {
2343 BDB::db_get $DB, undef, $key, my $data;
2344
2345 $! ? ()
2346 : $data
2347 }
2348}
2349
2350sub db_put($$$) {
2351 BDB::dbreq_pri 4;
2352 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353}
2354
2355=item cf::cache $id => [$paths...], $processversion => $process
2356
2357Generic caching function that returns the value of the resource $id,
2358caching and regenerating as required.
2359
2360This function can block.
2361
2362=cut
2363
2364sub cache {
2365 my ($id, $src, $processversion, $process) = @_;
2366
2367 my $meta =
2368 join "\x00",
2369 $processversion,
2370 map {
2371 aio_stat $_
2372 and Carp::croak "$_: $!";
2373
2374 ($_, (stat _)[7,9])
2375 } @$src;
2376
2377 my $dbmeta = db_get cache => "$id/meta";
2378 if ($dbmeta ne $meta) {
2379 # changed, we may need to process
2380
2381 my @data;
2382 my $md5;
2383
2384 for (0 .. $#$src) {
2385 0 <= aio_load $src->[$_], $data[$_]
2386 or Carp::croak "$src->[$_]: $!";
2387 }
2388
2389 # if processing is expensive, check
2390 # checksum first
2391 if (1) {
2392 $md5 =
2393 join "\x00",
2394 $processversion,
2395 map {
2396 Coro::cede;
2397 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2398 } 0.. $#$src;
2399
2400
2401 my $dbmd5 = db_get cache => "$id/md5";
2402 if ($dbmd5 eq $md5) {
2403 db_put cache => "$id/meta", $meta;
2404
2405 return db_get cache => "$id/data";
2406 }
2407 }
2408
2409 my $t1 = Time::HiRes::time;
2410 my $data = $process->(\@data);
2411 my $t2 = Time::HiRes::time;
2412
2413 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415 db_put cache => "$id/data", $data;
2416 db_put cache => "$id/md5" , $md5;
2417 db_put cache => "$id/meta", $meta;
2418
2419 return $data;
2420 }
2421
2422 db_get cache => "$id/data"
2423}
2424
2425=item fork_call { }, $args
2426
2427Executes the given code block with the given arguments in a seperate
2428process, returning the results. Everything must be serialisable with
2429Coro::Storable. May, of course, block. Note that the executed sub may
2430never block itself or use any form of Event handling.
2431
2432=cut
2433
2434sub fork_call(&@) {
2435 my ($cb, @args) = @_;
2436
2437# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438# or die "socketpair: $!";
2439 pipe my $fh1, my $fh2
2440 or die "pipe: $!";
2441
2442 if (my $pid = fork) {
2443 close $fh2;
2444
2445 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446 $res = Coro::Storable::thaw $res;
2447
2448 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450 die $$res unless "ARRAY" eq ref $res;
2451
2452 return wantarray ? @$res : $res->[-1];
2453 } else {
2454 reset_signals;
2455 local $SIG{__WARN__};
2456 local $SIG{__DIE__};
2457 eval {
2458 close $fh1;
2459
2460 my @res = eval { $cb->(@args) };
2461 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462 };
2463
2464 warn $@ if $@;
2465 _exit 0;
2466 }
2467}
2468
2469
2470
2471#############################################################################
2472# the server's init and main functions 2601# the server's init and main functions
2473 2602
2474sub load_facedata($) { 2603sub load_facedata($) {
2475 my ($path) = @_; 2604 my ($path) = @_;
2476 2605
2546sub reload_resources { 2675sub reload_resources {
2547 warn "reloading resource files...\n"; 2676 warn "reloading resource files...\n";
2548 2677
2549 reload_regions; 2678 reload_regions;
2550 reload_facedata; 2679 reload_facedata;
2680 #reload_archetypes;#d#
2551 reload_archetypes; 2681 reload_archetypes;
2552 reload_treasures; 2682 reload_treasures;
2553 2683
2554 warn "finished reloading resource files\n"; 2684 warn "finished reloading resource files\n";
2555} 2685}
2612 }, 2742 },
2613 ); 2743 );
2614 } 2744 }
2615} 2745}
2616 2746
2747sub write_runtime {
2748 my $runtime = "$LOCALDIR/runtime";
2749
2750 # first touch the runtime file to show we are still running:
2751 # the fsync below can take a very very long time.
2752
2753 IO::AIO::aio_utime $runtime, undef, undef;
2754
2755 my $guard = cf::lock_acquire "write_runtime";
2756
2757 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
2758 or return;
2759
2760 my $value = $cf::RUNTIME + 90 + 10;
2761 # 10 is the runtime save interval, for a monotonic clock
2762 # 60 allows for the watchdog to kill the server.
2763
2764 (aio_write $fh, 0, (length $value), $value, 0) <= 0
2765 and return;
2766
2767 # always fsync - this file is important
2768 aio_fsync $fh
2769 and return;
2770
2771 # touch it again to show we are up-to-date
2772 aio_utime $fh, undef, undef;
2773
2774 close $fh
2775 or return;
2776
2777 aio_rename "$runtime~", $runtime
2778 and return;
2779
2780 warn "runtime file written.\n";
2781
2782 1
2783}
2784
2617sub emergency_save() { 2785sub emergency_save() {
2618 my $freeze_guard = cf::freeze_mainloop; 2786 my $freeze_guard = cf::freeze_mainloop;
2619 2787
2620 warn "enter emergency perl save\n"; 2788 warn "enter emergency perl save\n";
2621 2789
2825 my $signal = new Coro::Signal; 2993 my $signal = new Coro::Signal;
2826 push @WAIT_FOR_TICK_BEGIN, $signal; 2994 push @WAIT_FOR_TICK_BEGIN, $signal;
2827 $signal->wait; 2995 $signal->wait;
2828} 2996}
2829 2997
2998 my $min = 1e6;#d#
2999 my $avg = 10;
2830$TICK_WATCHER = Event->timer ( 3000$TICK_WATCHER = Event->timer (
2831 reentrant => 0, 3001 reentrant => 0,
2832 parked => 1, 3002 parked => 1,
2833 prio => 0, 3003 prio => 0,
2834 at => $NEXT_TICK || $TICK, 3004 at => $NEXT_TICK || $TICK,
2838 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3008 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839 unless ++$bug_warning > 10; 3009 unless ++$bug_warning > 10;
2840 return; 3010 return;
2841 } 3011 }
2842 3012
2843 $NOW = Event::time; 3013 $NOW = $tick_start = Event::time;
2844 3014
2845 cf::server_tick; # one server iteration 3015 cf::server_tick; # one server iteration
3016
3017 0 && sync_job {#d#
3018 for(1..10) {
3019 my $t = Event::time;
3020 my $map = my $map = new_from_path cf::map "/tmp/x.map"
3021 or die;
3022
3023 $map->width (50);
3024 $map->height (50);
3025 $map->alloc;
3026 $map->_load_objects ("/tmp/x.map", 1);
3027 my $t = Event::time - $t;
3028
3029 #next unless $t < 0.0013;#d#
3030 if ($t < $min) {
3031 $min = $t;
3032 }
3033 $avg = $avg * 0.99 + $t * 0.01;
3034 }
3035 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
3036 exit 0;
3037 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
3038 };
2846 3039
2847 $RUNTIME += $TICK; 3040 $RUNTIME += $TICK;
2848 $NEXT_TICK += $TICK; 3041 $NEXT_TICK += $TICK;
2849 3042
2850 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3043 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2856 } 3049 }
2857 3050
2858# my $AFTER = Event::time; 3051# my $AFTER = Event::time;
2859# warn $AFTER - $NOW;#d# 3052# warn $AFTER - $NOW;#d#
2860 3053
3054 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3055 $sig->send;
3056 }
3057 while (my $sig = shift @WAIT_FOR_TICK) {
3058 $sig->send;
3059 }
3060
3061 $NOW = Event::time;
3062
2861 # if we are delayed by four ticks or more, skip them all 3063 # if we are delayed by four ticks or more, skip them all
2862 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3064 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863 3065
2864 $TICK_WATCHER->at ($NEXT_TICK); 3066 $TICK_WATCHER->at ($NEXT_TICK);
2865 $TICK_WATCHER->start; 3067 $TICK_WATCHER->start;
2866 3068
2867 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3069 $LOAD = ($NOW - $tick_start) / $TICK;
2868 $sig->send; 3070 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869 }
2870 while (my $sig = shift @WAIT_FOR_TICK) {
2871 $sig->send;
2872 }
2873 3071
2874 _post_tick; 3072 _post_tick;
3073
3074
2875 }, 3075 },
2876); 3076);
2877 3077
2878{ 3078{
2879 BDB::max_poll_time $TICK * 0.1; 3079 BDB::max_poll_time $TICK * 0.1;

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