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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 2007 UTC

20use Coro::Signal; 20use Coro::Signal;
21use Coro::Semaphore; 21use Coro::Semaphore;
22use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable; 23use Coro::Storable;
24 24
25use JSON::XS 1.4 ();
25use BDB (); 26use BDB ();
26use Data::Dumper; 27use Data::Dumper;
27use Digest::MD5; 28use Digest::MD5;
28use Fcntl; 29use Fcntl;
29use YAML::Syck (); 30use YAML::Syck ();
30use IO::AIO 2.32 (); 31use IO::AIO 2.32 ();
31use Time::HiRes; 32use Time::HiRes;
32use Compress::LZF; 33use Compress::LZF;
34use Digest::MD5 ();
33 35
34# configure various modules to our taste 36# configure various modules to our taste
35# 37#
36$Storable::canonical = 1; # reduce rsync transfers 38$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 39Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
49our %COMMAND = (); 51our %COMMAND = ();
50our %COMMAND_TIME = (); 52our %COMMAND_TIME = ();
51 53
52our @EXTS = (); # list of extension package names 54our @EXTS = (); # list of extension package names
53our %EXTCMD = (); 55our %EXTCMD = ();
56our %EXTICMD = ();
54our %EXT_CORO = (); # coroutines bound to extensions 57our %EXT_CORO = (); # coroutines bound to extensions
55our %EXT_MAP = (); # pluggable maps 58our %EXT_MAP = (); # pluggable maps
56 59
57our $RELOAD; # number of reloads so far 60our $RELOAD; # number of reloads so far
58our @EVENT; 61our @EVENT;
164 167
165These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only 168These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166returns directly I<after> the tick processing (and consequently, can only wake one process 169returns directly I<after> the tick processing (and consequently, can only wake one process
167per tick), while cf::wait_for_tick wakes up all waiters after tick processing. 170per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168 171
172=item @cf::INVOKE_RESULTS
173
174This array contains the results of the last C<invoke ()> call. When
175C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
176that call.
177
169=back 178=back
170 179
171=cut 180=cut
172 181
173BEGIN { 182BEGIN {
206} 215}
207 216
208$Event::DIED = sub { 217$Event::DIED = sub {
209 warn "error in event callback: @_"; 218 warn "error in event callback: @_";
210}; 219};
220
221#############################################################################
211 222
212=head2 UTILITY FUNCTIONS 223=head2 UTILITY FUNCTIONS
213 224
214=over 4 225=over 4
215 226
234 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 245 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235 $d 246 $d
236 } || "[unable to dump $_[0]: '$@']"; 247 } || "[unable to dump $_[0]: '$@']";
237} 248}
238 249
239use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241=item $ref = cf::from_json $json 250=item $ref = cf::from_json $json
242 251
243Converts a JSON string into the corresponding perl data structure. 252Converts a JSON string into the corresponding perl data structure.
244 253
245=item $json = cf::to_json $ref 254=item $json = cf::to_json $ref
246 255
247Converts a perl data structure into its JSON representation. 256Converts a perl data structure into its JSON representation.
257
258=cut
259
260our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
261
262sub to_json ($) { $json_coder->encode ($_[0]) }
263sub from_json ($) { $json_coder->decode ($_[0]) }
248 264
249=item cf::lock_wait $string 265=item cf::lock_wait $string
250 266
251Wait until the given lock is available. See cf::lock_acquire. 267Wait until the given lock is available. See cf::lock_acquire.
252 268
318 334
319BEGIN { *async = \&Coro::async_pool } 335BEGIN { *async = \&Coro::async_pool }
320 336
321=item cf::sync_job { BLOCK } 337=item cf::sync_job { BLOCK }
322 338
323The design of crossfire+ requires that the main coro ($Coro::main) is 339The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324always able to handle events or runnable, as crossfire+ is only partly 340is always able to handle events or runnable, as Crossfire TRT is only
325reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 341partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
342acceptable.
326 343
327If it must be done, put the blocking parts into C<sync_job>. This will run 344If it must be done, put the blocking parts into C<sync_job>. This will run
328the given BLOCK in another coroutine while waiting for the result. The 345the given BLOCK in another coroutine while waiting for the result. The
329server will be frozen during this time, so the block should either finish 346server will be frozen during this time, so the block should either finish
330fast or be very important. 347fast or be very important.
390 $EXT_CORO{$coro+0} = $coro; 407 $EXT_CORO{$coro+0} = $coro;
391 408
392 $coro 409 $coro
393} 410}
394 411
395sub write_runtime { 412=item fork_call { }, $args
396 my $runtime = "$LOCALDIR/runtime";
397 413
398 # first touch the runtime file to show we are still running: 414Executes the given code block with the given arguments in a seperate
399 # the fsync below can take a very very long time. 415process, returning the results. Everything must be serialisable with
416Coro::Storable. May, of course, block. Note that the executed sub may
417never block itself or use any form of Event handling.
400 418
401 IO::AIO::aio_utime $runtime, undef, undef; 419=cut
402 420
403 my $guard = cf::lock_acquire "write_runtime"; 421sub _store_scalar {
404 422 open my $fh, ">", \my $buf
405 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 423 or die "fork_call: cannot open fh-to-buf in child : $!";
406 or return; 424 Storable::store_fd $_[0], $fh;
407
408 my $value = $cf::RUNTIME + 90 + 10;
409 # 10 is the runtime save interval, for a monotonic clock
410 # 60 allows for the watchdog to kill the server.
411
412 (aio_write $fh, 0, (length $value), $value, 0) <= 0
413 and return;
414
415 # always fsync - this file is important
416 aio_fsync $fh
417 and return;
418
419 # touch it again to show we are up-to-date
420 aio_utime $fh, undef, undef;
421
422 close $fh 425 close $fh;
423 or return;
424 426
425 aio_rename "$runtime~", $runtime 427 $buf
426 and return; 428}
427 429
428 warn "runtime file written.\n"; 430sub fork_call(&@) {
431 my ($cb, @args) = @_;
429 432
433# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
434# or die "socketpair: $!";
435 pipe my $fh1, my $fh2
436 or die "pipe: $!";
437
438 if (my $pid = fork) {
439 close $fh2;
440
441 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
442 warn "pst<$res>" unless $res =~ /^pst/;
443 $res = Coro::Storable::thaw $res;
444
445 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
446
447 Carp::confess $$res unless "ARRAY" eq ref $res;
448
449 return wantarray ? @$res : $res->[-1];
450 } else {
451 reset_signals;
452 local $SIG{__WARN__};
453 local $SIG{__DIE__};
454 # just in case, this hack effectively disables event
455 # in the child. cleaner and slower would be canceling all watchers,
456 # but this works for the time being.
457 local $Coro::idle;
458 $Coro::current->prio (Coro::PRIO_MAX);
459
460 eval {
461 close $fh1;
462
463 my @res = eval { $cb->(@args) };
464
465 syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
466 close $fh2;
467 };
468
469 warn $@ if $@;
470 _exit 0;
430 1 471 }
472}
473
474=item $value = cf::db_get $family => $key
475
476Returns a single value from the environment database.
477
478=item cf::db_put $family => $key => $value
479
480Stores the given C<$value> in the family. It can currently store binary
481data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
482
483=cut
484
485our $DB;
486
487sub db_init {
488 unless ($DB) {
489 $DB = BDB::db_create $DB_ENV;
490
491 cf::sync_job {
492 eval {
493 $DB->set_flags (BDB::CHKSUM);
494
495 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
496 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
497 cf::cleanup "db_open(db): $!" if $!;
498 };
499 cf::cleanup "db_open(db): $@" if $@;
500 };
501 }
502}
503
504sub db_get($$) {
505 my $key = "$_[0]/$_[1]";
506
507 cf::sync_job {
508 BDB::db_get $DB, undef, $key, my $data;
509
510 $! ? ()
511 : $data
512 }
513}
514
515sub db_put($$$) {
516 BDB::dbreq_pri 4;
517 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
518}
519
520=item cf::cache $id => [$paths...], $processversion => $process
521
522Generic caching function that returns the value of the resource $id,
523caching and regenerating as required.
524
525This function can block.
526
527=cut
528
529sub cache {
530 my ($id, $src, $processversion, $process) = @_;
531
532 my $meta =
533 join "\x00",
534 $processversion,
535 map {
536 aio_stat $_
537 and Carp::croak "$_: $!";
538
539 ($_, (stat _)[7,9])
540 } @$src;
541
542 my $dbmeta = db_get cache => "$id/meta";
543 if ($dbmeta ne $meta) {
544 # changed, we may need to process
545
546 my @data;
547 my $md5;
548
549 for (0 .. $#$src) {
550 0 <= aio_load $src->[$_], $data[$_]
551 or Carp::croak "$src->[$_]: $!";
552 }
553
554 # if processing is expensive, check
555 # checksum first
556 if (1) {
557 $md5 =
558 join "\x00",
559 $processversion,
560 map {
561 Coro::cede;
562 ($src->[$_], Digest::MD5::md5_hex $data[$_])
563 } 0.. $#$src;
564
565
566 my $dbmd5 = db_get cache => "$id/md5";
567 if ($dbmd5 eq $md5) {
568 db_put cache => "$id/meta", $meta;
569
570 return db_get cache => "$id/data";
571 }
572 }
573
574 my $t1 = Time::HiRes::time;
575 my $data = $process->(\@data);
576 my $t2 = Time::HiRes::time;
577
578 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
579
580 db_put cache => "$id/data", $data;
581 db_put cache => "$id/md5" , $md5;
582 db_put cache => "$id/meta", $meta;
583
584 return $data;
585 }
586
587 db_get cache => "$id/data"
431} 588}
432 589
433=item cf::datalog type => key => value, ... 590=item cf::datalog type => key => value, ...
434 591
435Log a datalog packet of the given type with the given key-value pairs. 592Log a datalog packet of the given type with the given key-value pairs.
453attach callbacks/event handlers (a collection of which is called an "attachment") 610attach callbacks/event handlers (a collection of which is called an "attachment")
454to it. All such attachable objects support the following methods. 611to it. All such attachable objects support the following methods.
455 612
456In the following description, CLASS can be any of C<global>, C<object> 613In the following description, CLASS can be any of C<global>, C<object>
457C<player>, C<client> or C<map> (i.e. the attachable objects in 614C<player>, C<client> or C<map> (i.e. the attachable objects in
458crossfire+). 615Crossfire TRT).
459 616
460=over 4 617=over 4
461 618
462=item $attachable->attach ($attachment, key => $value...) 619=item $attachable->attach ($attachment, key => $value...)
463 620
665 _attach $registry, $klass, @attach; 822 _attach $registry, $klass, @attach;
666 } 823 }
667 824
668 $obj->{$name} = \%arg; 825 $obj->{$name} = \%arg;
669 } else { 826 } else {
670 warn "object uses attachment '$name' that is not available, postponing.\n"; 827 warn "object uses attachment '$name' which is not available, postponing.\n";
671 } 828 }
672 829
673 $obj->{_attachment}{$name} = undef; 830 $obj->{_attachment}{$name} = undef;
674} 831}
675 832
715 "; 872 ";
716 die if $@; 873 die if $@;
717} 874}
718 875
719our $override; 876our $override;
720our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 877our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721 878
722sub override { 879sub override {
723 $override = 1; 880 $override = 1;
724 @invoke_results = (); 881 @INVOKE_RESULTS = (@_);
725} 882}
726 883
727sub do_invoke { 884sub do_invoke {
728 my $event = shift; 885 my $event = shift;
729 my $callbacks = shift; 886 my $callbacks = shift;
730 887
731 @invoke_results = (); 888 @INVOKE_RESULTS = ();
732 889
733 local $override; 890 local $override;
734 891
735 for (@$callbacks) { 892 for (@$callbacks) {
736 eval { &{$_->[1]} }; 893 eval { &{$_->[1]} };
753 910
754Generate an object-specific event with the given arguments. 911Generate an object-specific event with the given arguments.
755 912
756This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 913This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757removed in future versions), and there is no public API to access override 914removed in future versions), and there is no public API to access override
758results (if you must, access C<@cf::invoke_results> directly). 915results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759 916
760=back 917=back
761 918
762=cut 919=cut
763 920
764############################################################################# 921#############################################################################
765# object support 922# object support
923#
924
925sub _can_merge {
926 my ($ob1, $ob2) = @_;
927
928 local $Storable::canonical = 1;
929 my $fob1 = Storable::freeze $ob1;
930 my $fob2 = Storable::freeze $ob2;
931
932 $fob1 eq $fob2
933}
766 934
767sub reattach { 935sub reattach {
768 # basically do the same as instantiate, without calling instantiate 936 # basically do the same as instantiate, without calling instantiate
769 my ($obj) = @_; 937 my ($obj) = @_;
770 938
877 warn sprintf "loading %s (%d)\n", 1045 warn sprintf "loading %s (%d)\n",
878 $filename, length $data, scalar @{$av || []}; 1046 $filename, length $data, scalar @{$av || []};
879 return ($data, $av); 1047 return ($data, $av);
880} 1048}
881 1049
1050=head2 COMMAND CALLBACKS
1051
1052=over 4
1053
1054=cut
1055
882############################################################################# 1056#############################################################################
883# command handling &c 1057# command handling &c
884 1058
885=item cf::register_command $name => \&callback($ob,$args); 1059=item cf::register_command $name => \&callback($ob,$args);
886 1060
898 push @{ $COMMAND{$name} }, [$caller, $cb]; 1072 push @{ $COMMAND{$name} }, [$caller, $cb];
899} 1073}
900 1074
901=item cf::register_extcmd $name => \&callback($pl,$packet); 1075=item cf::register_extcmd $name => \&callback($pl,$packet);
902 1076
903Register a callbackf ro execution when the client sends an extcmd packet. 1077Register a callback for execution when the client sends an (synchronous)
1078extcmd packet. Ext commands will be processed in the order they are
1079received by the server, like other user commands. The first argument is
1080the logged-in player. Ext commands can only be processed after a player
1081has logged in successfully.
904 1082
905If the callback returns something, it is sent back as if reply was being 1083If the callback returns something, it is sent back as if reply was being
906called. 1084called.
907 1085
1086=item cf::register_exticmd $name => \&callback($ns,$packet);
1087
1088Register a callback for execution when the client sends an (asynchronous)
1089exticmd packet. Exti commands are processed by the server as soon as they
1090are received, i.e. out of order w.r.t. other commands. The first argument
1091is a client socket. Exti commands can be received anytime, even before
1092log-in.
1093
1094If the callback returns something, it is sent back as if reply was being
1095called.
1096
908=cut 1097=cut
909 1098
910sub register_extcmd { 1099sub register_extcmd {
911 my ($name, $cb) = @_; 1100 my ($name, $cb) = @_;
912 1101
913 $EXTCMD{$name} = $cb; 1102 $EXTCMD{$name} = $cb;
1103}
1104
1105sub register_exticmd {
1106 my ($name, $cb) = @_;
1107
1108 $EXTICMD{$name} = $cb;
914} 1109}
915 1110
916cf::player->attach ( 1111cf::player->attach (
917 on_command => sub { 1112 on_command => sub {
918 my ($pl, $name, $params) = @_; 1113 my ($pl, $name, $params) = @_;
927 cf::override; 1122 cf::override;
928 }, 1123 },
929 on_extcmd => sub { 1124 on_extcmd => sub {
930 my ($pl, $buf) = @_; 1125 my ($pl, $buf) = @_;
931 1126
932 my $msg = eval { from_json $buf }; 1127 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933 1128
934 if (ref $msg) { 1129 if (ref $msg) {
935 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1130 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936 if (my %reply = $cb->($pl, $msg)) { 1131 if (my %reply = $cb->($pl, $msg)) {
937 $pl->ext_reply ($msg->{msgid}, %reply); 1132 $pl->ext_reply ($msg->{msgid}, %reply);
967 path => $path, 1162 path => $path,
968 base => $base, 1163 base => $base,
969 pkg => $pkg, 1164 pkg => $pkg,
970 ); 1165 );
971 1166
972 $ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 } 1167 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973 if $source =~ /^#!.*?perl.*?#\s*(.*)$/; 1168 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
974 1169
975 $ext{source} = 1170 $ext{source} =
976 "package $pkg; use strict; use utf8;\n" 1171 "package $pkg; use strict; use utf8;\n"
977 . "#line 1 \"$path\"\n{\n" 1172 . "#line 1 \"$path\"\n{\n"
978 . $source 1173 . $source
984 my %done; 1179 my %done;
985 while (%todo) { 1180 while (%todo) {
986 my $progress; 1181 my $progress;
987 1182
988 while (my ($k, $v) = each %todo) { 1183 while (my ($k, $v) = each %todo) {
989 for (split /,\s*/, $ext{meta}{depends}) { 1184 for (split /,\s*/, $v->{meta}{depends}) {
990 goto skip 1185 goto skip
991 unless exists $done{$_}; 1186 unless exists $done{$_};
992 } 1187 }
993 1188
994 warn "... loading '$k' into '$v->{pkg}'\n"; 1189 warn "... loading '$k' into '$v->{pkg}'\n";
995 1190
996 unless (eval $v->{source}) { 1191 unless (eval $v->{source}) {
997 my $msg = $@ ? "$v->{path}: $@\n" 1192 my $msg = $@ ? "$v->{path}: $@\n"
998 : "extension disabled.\n"; 1193 : "$v->{base}: extension inactive.\n";
999 1194
1000 if (exists $v->{meta}{mandatory}) { 1195 if (exists $v->{meta}{mandatory}) {
1001 warn $msg; 1196 warn $msg;
1002 warn "mandatory extension failed to load, exiting.\n"; 1197 warn "mandatory extension failed to load, exiting.\n";
1003 exit 1; 1198 exit 1;
1004 } 1199 }
1005 1200
1006 die $msg; 1201 warn $msg;
1007 } 1202 }
1008 1203
1009 $done{$k} = delete $todo{$k}; 1204 $done{$k} = delete $todo{$k};
1010 push @EXTS, $v->{pkg}; 1205 push @EXTS, $v->{pkg};
1206 $progress = 1;
1011 } 1207 }
1012 1208
1013 skip: 1209 skip:
1014 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n" 1210 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1015 unless $progress; 1211 unless $progress;
1016 } 1212 }
1017 }; 1213 };
1018} 1214}
1019 1215
1020############################################################################# 1216#############################################################################
1217
1218=back
1021 1219
1022=head2 CORE EXTENSIONS 1220=head2 CORE EXTENSIONS
1023 1221
1024Functions and methods that extend core crossfire objects. 1222Functions and methods that extend core crossfire objects.
1025 1223
1213 } 1411 }
1214 1412
1215 \@paths 1413 \@paths
1216} 1414}
1217 1415
1416=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1417
1418Expand crossfire pod fragments into protocol xml.
1419
1420=cut
1421
1422sub expand_cfpod {
1423 ((my $self), (local $_)) = @_;
1424
1425 # escape & and <
1426 s/&/&amp;/g;
1427 s/(?<![BIUGH])</&lt;/g;
1428
1429 # this is buggy, it needs to properly take care of nested <'s
1430
1431 1 while
1432 # replace B<>, I<>, U<> etc.
1433 s/B<([^\>]*)>/<b>$1<\/b>/
1434 || s/I<([^\>]*)>/<i>$1<\/i>/
1435 || s/U<([^\>]*)>/<u>$1<\/u>/
1436 # replace G<male|female> tags
1437 || s{G<([^>|]*)\|([^>]*)>}{
1438 $self->gender ? $2 : $1
1439 }ge
1440 # replace H<hint text>
1441 || s{H<([^\>]*)>}
1442 {
1443 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
1444 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1445 "")
1446 [$self->{hintmode}]
1447 }ge;
1448
1449 # create single paragraphs (very hackish)
1450 s/(?<=\S)\n(?=\w)/ /g;
1451
1452 # compress some whitespace
1453 s/\s+\n/\n/g; # ws line-ends
1454 s/\n\n+/\n/g; # double lines
1455 s/^\n+//; # beginning lines
1456 s/\n+$//; # ending lines
1457
1458 $_
1459}
1460
1461sub hintmode {
1462 $_[0]{hintmode} = $_[1] if @_ > 1;
1463 $_[0]{hintmode}
1464}
1465
1218=item $player->ext_reply ($msgid, %msg) 1466=item $player->ext_reply ($msgid, %msg)
1219 1467
1220Sends an ext reply to the player. 1468Sends an ext reply to the player.
1221 1469
1222=cut 1470=cut
1223 1471
1224sub ext_reply($$%) { 1472sub ext_reply($$%) {
1225 my ($self, $id, %msg) = @_; 1473 my ($self, $id, %msg) = @_;
1226 1474
1227 $msg{msgid} = $id; 1475 $msg{msgid} = $id;
1228 1476 $self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1229 $self->send ("ext " . cf::to_json \%msg);
1230} 1477}
1231 1478
1232=item $player->ext_event ($type, %msg) 1479=item $player->ext_event ($type, %msg)
1233 1480
1234Sends an ext event to the client. 1481Sends an ext event to the client.
1249 1496
1250package cf::region; 1497package cf::region;
1251 1498
1252=item cf::region::find_by_path $path 1499=item cf::region::find_by_path $path
1253 1500
1254Tries to decuce the probable region for a map knowing only its path. 1501Tries to decuce the likely region for a map knowing only its path.
1255 1502
1256=cut 1503=cut
1257 1504
1258sub find_by_path($) { 1505sub find_by_path($) {
1259 my ($path) = @_; 1506 my ($path) = @_;
1260 1507
1261 my ($match, $specificity); 1508 my ($match, $specificity);
1262 1509
1263 for my $region (list) { 1510 for my $region (list) {
1264 if ($region->match && $path =~ $region->match) { 1511 if ($region->{match} && $path =~ $region->{match}) {
1265 ($match, $specificity) = ($region, $region->specificity) 1512 ($match, $specificity) = ($region, $region->specificity)
1266 if $region->specificity > $specificity; 1513 if $region->specificity > $specificity;
1267 } 1514 }
1268 } 1515 }
1269 1516
1389 $self->init; # pass $1 etc. 1636 $self->init; # pass $1 etc.
1390 return $self; 1637 return $self;
1391 } 1638 }
1392 } 1639 }
1393 1640
1394 Carp::carp "unable to resolve path '$path' (base '$base')."; 1641 Carp::cluck "unable to resolve path '$path' (base '$base').";
1395 () 1642 ()
1396} 1643}
1397 1644
1398sub init { 1645sub init {
1399 my ($self) = @_; 1646 my ($self) = @_;
1677 1924
1678 undef $MAP_PREFETCH{$path}; 1925 undef $MAP_PREFETCH{$path};
1679 $MAP_PREFETCHER ||= cf::async { 1926 $MAP_PREFETCHER ||= cf::async {
1680 while (%MAP_PREFETCH) { 1927 while (%MAP_PREFETCH) {
1681 for my $path (keys %MAP_PREFETCH) { 1928 for my $path (keys %MAP_PREFETCH) {
1682 my $map = find $path 1929 if (my $map = find $path) {
1683 or next;
1684 $map->load; 1930 $map->load;
1931 }
1685 1932
1686 delete $MAP_PREFETCH{$path}; 1933 delete $MAP_PREFETCH{$path};
1687 } 1934 }
1688 } 1935 }
1689 undef $MAP_PREFETCHER; 1936 undef $MAP_PREFETCHER;
1911 2158
1912 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2159 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1913 2160
1914 if ($self->{record_replies}) { 2161 if ($self->{record_replies}) {
1915 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2162 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2163
1916 } else { 2164 } else {
2165 my $pl = $self->contr;
2166
2167 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2168 my $diag = $pl->{npc_dialog};
2169 $diag->{pl}->ext_reply (
2170 $diag->{id},
2171 msgtype => "reply",
2172 msg => $diag->{pl}->expand_cfpod ($msg),
2173 add_topics => []
2174 );
2175
2176 } else {
1917 $msg = $npc->name . " says: $msg" if $npc; 2177 $msg = $npc->name . " says: $msg" if $npc;
1918 $self->message ($msg, $flags); 2178 $self->message ($msg, $flags);
2179 }
1919 } 2180 }
1920} 2181}
1921 2182
1922=item $player_object->may ("access") 2183=item $player_object->may ("access")
1923 2184
2012 2273
2013 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2274 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2014 $self->enter_map ($map, $x, $y); 2275 $self->enter_map ($map, $x, $y);
2015} 2276}
2016 2277
2017=item $player_object->goto ($path, $x, $y[, $check->($map)]) 2278=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2018 2279
2019Moves the player to the given map-path and coordinates by first freezing 2280Moves the player to the given map-path and coordinates by first freezing
2020her, loading and preparing them map, calling the provided $check callback 2281her, loading and preparing them map, calling the provided $check callback
2021that has to return the map if sucecssful, and then unfreezes the player on 2282that has to return the map if sucecssful, and then unfreezes the player on
2022the new (success) or old (failed) map position. 2283the new (success) or old (failed) map position. In either case, $done will
2284be called at the end of this process.
2023 2285
2024=cut 2286=cut
2025 2287
2026our $GOTOGEN; 2288our $GOTOGEN;
2027 2289
2028sub cf::object::player::goto { 2290sub cf::object::player::goto {
2029 my ($self, $path, $x, $y, $check) = @_; 2291 my ($self, $path, $x, $y, $check, $done) = @_;
2030 2292
2031 # do generation counting so two concurrent goto's will be executed in-order 2293 # do generation counting so two concurrent goto's will be executed in-order
2032 my $gen = $self->{_goto_generation} = ++$GOTOGEN; 2294 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2033 2295
2034 $self->enter_link; 2296 $self->enter_link;
2054 2316
2055 if ($gen == $self->{_goto_generation}) { 2317 if ($gen == $self->{_goto_generation}) {
2056 delete $self->{_goto_generation}; 2318 delete $self->{_goto_generation};
2057 $self->leave_link ($map, $x, $y); 2319 $self->leave_link ($map, $x, $y);
2058 } 2320 }
2321
2322 $done->() if $done;
2059 })->prio (1); 2323 })->prio (1);
2060} 2324}
2061 2325
2062=item $player_object->enter_exit ($exit_object) 2326=item $player_object->enter_exit ($exit_object)
2063 2327
2132 my $hp = $exit->stats->hp; 2396 my $hp = $exit->stats->hp;
2133 my $sp = $exit->stats->sp; 2397 my $sp = $exit->stats->sp;
2134 2398
2135 $self->enter_link; 2399 $self->enter_link;
2136 2400
2401 # if exit is damned, update players death & WoR home-position
2402 $self->contr->savebed ($slaying, $hp, $sp)
2403 if $exit->flag (FLAG_DAMNED);
2404
2137 (async { 2405 (async {
2138 $self->deactivate_recursive; # just to be sure 2406 $self->deactivate_recursive; # just to be sure
2139 unless (eval { 2407 unless (eval {
2140 $self->goto ($slaying, $hp, $sp); 2408 $self->goto ($slaying, $hp, $sp);
2141 2409
2168 2436
2169 utf8::encode $text; 2437 utf8::encode $text;
2170 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text); 2438 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2171} 2439}
2172 2440
2441=item $client->send_msg ($channel, $msg, $color, [extra...])
2442
2443Send a drawinfo or msg packet to the client, formatting the msg for the
2444client if neccessary. C<$type> should be a string identifying the type of
2445the message, with C<log> being the default. If C<$color> is negative, suppress
2446the message unless the client supports the msg packet.
2447
2448=cut
2449
2450sub cf::client::send_msg {
2451 my ($self, $channel, $msg, $color, @extra) = @_;
2452
2453 $msg = $self->pl->expand_cfpod ($msg);
2454
2455 return unless @extra || length $msg;
2456
2457 $color &= ~cf::NDI_UNIQUE; # just in case...
2458
2459 if (ref $channel) {
2460 # send meta info to client, if not yet sent
2461 unless (exists $self->{channel}{$channel->{id}}) {
2462 $self->{channel}{$channel->{id}} = $channel;
2463 $self->ext_event (channel_info => %$channel);
2464 }
2465
2466 $channel = $channel->{id};
2467 }
2468
2469 if ($self->can_msg) {
2470 $self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
2471 } else {
2472 # replace some tags by gcfclient-compatible ones
2473 for ($msg) {
2474 1 while
2475 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2476 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2477 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2478 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2479 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2480 }
2481
2482 if ($color >= 0) {
2483 if (0 && $msg =~ /\[/) {
2484 $self->send_packet ("drawextinfo $color 4 0 $msg")
2485 } else {
2486 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2487 $self->send_packet ("drawinfo $color $msg")
2488 }
2489 }
2490 }
2491}
2492
2173=item $client->ext_event ($type, %msg) 2493=item $client->ext_event ($type, %msg)
2174 2494
2175Sends an exti event to the client. 2495Sends an ext event to the client.
2176 2496
2177=cut 2497=cut
2178 2498
2179sub cf::client::ext_event($$%) { 2499sub cf::client::ext_event($$%) {
2180 my ($self, $type, %msg) = @_; 2500 my ($self, $type, %msg) = @_;
2181 2501
2502 return unless $self->extcmd;
2503
2182 $msg{msgtype} = "event_$type"; 2504 $msg{msgtype} = "event_$type";
2183 $self->send_packet ("ext " . cf::to_json \%msg); 2505 $self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2184} 2506}
2185 2507
2186=item $success = $client->query ($flags, "text", \&cb) 2508=item $success = $client->query ($flags, "text", \&cb)
2187 2509
2188Queues a query to the client, calling the given callback with 2510Queues a query to the client, calling the given callback with
2189the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2511the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2190C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2512C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2191 2513
2192Queries can fail, so check the return code. Or don't, as queries will become 2514Queries can fail, so check the return code. Or don't, as queries will
2193reliable at some point in the future. 2515become reliable at some point in the future.
2194 2516
2195=cut 2517=cut
2196 2518
2197sub cf::client::query { 2519sub cf::client::query {
2198 my ($self, $flags, $text, $cb) = @_; 2520 my ($self, $flags, $text, $cb) = @_;
2206 utf8::encode $text; 2528 utf8::encode $text;
2207 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2529 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208 2530
2209 $self->send_packet ($self->{query_queue}[0][0]) 2531 $self->send_packet ($self->{query_queue}[0][0])
2210 if @{ $self->{query_queue} } == 1; 2532 if @{ $self->{query_queue} } == 1;
2533
2534 1
2211} 2535}
2212 2536
2213cf::client->attach ( 2537cf::client->attach (
2538 on_connect => sub {
2539 my ($ns) = @_;
2540
2541 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2542 },
2214 on_reply => sub { 2543 on_reply => sub {
2215 my ($ns, $msg) = @_; 2544 my ($ns, $msg) = @_;
2216 2545
2217 # this weird shuffling is so that direct followup queries 2546 # this weird shuffling is so that direct followup queries
2218 # get handled first 2547 # get handled first
2230 } else { 2559 } else {
2231 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2560 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232 } 2561 }
2233 } 2562 }
2234 }, 2563 },
2564 on_exticmd => sub {
2565 my ($ns, $buf) = @_;
2566
2567 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2568
2569 if (ref $msg) {
2570 if (my $cb = $EXTICMD{$msg->{msgtype}}) {
2571 if (my %reply = $cb->($ns, $msg)) {
2572 $reply{msgid} = $msg->{msgid};
2573 $ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
2574 }
2575 }
2576 } else {
2577 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2578 }
2579
2580 cf::override;
2581 },
2235); 2582);
2236 2583
2237=item $client->async (\&cb) 2584=item $client->async (\&cb)
2238 2585
2239Create a new coroutine, running the specified callback. The coroutine will 2586Create a new coroutine, running the specified callback. The coroutine will
2288 2635
2289=pod 2636=pod
2290 2637
2291The following functions and methods are available within a safe environment: 2638The following functions and methods are available within a safe environment:
2292 2639
2293 cf::object contr pay_amount pay_player map 2640 cf::object
2641 contr pay_amount pay_player map x y force_find force_add
2642 insert remove
2643
2294 cf::object::player player 2644 cf::object::player
2295 cf::player peaceful 2645 player
2296 cf::map trigger 2646
2647 cf::player
2648 peaceful
2649
2650 cf::map
2651 trigger
2297 2652
2298=cut 2653=cut
2299 2654
2300for ( 2655for (
2301 ["cf::object" => qw(contr pay_amount pay_player map)], 2656 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
2657 insert remove)],
2302 ["cf::object::player" => qw(player)], 2658 ["cf::object::player" => qw(player)],
2303 ["cf::player" => qw(peaceful)], 2659 ["cf::player" => qw(peaceful)],
2304 ["cf::map" => qw(trigger)], 2660 ["cf::map" => qw(trigger)],
2305) { 2661) {
2306 no strict 'refs'; 2662 no strict 'refs';
2377=back 2733=back
2378 2734
2379=cut 2735=cut
2380 2736
2381############################################################################# 2737#############################################################################
2382
2383=head2 EXTENSION DATABASE SUPPORT
2384
2385Crossfire maintains a very simple database for extension use. It can
2386currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387convert to/from binary).
2388
2389The parameter C<$family> should best start with the name of the extension
2390using it, it should be unique.
2391
2392=over 4
2393
2394=item $value = cf::db_get $family => $key
2395
2396Returns a single value from the database.
2397
2398=item cf::db_put $family => $key => $value
2399
2400Stores the given C<$value> in the family.
2401
2402=cut
2403
2404our $DB;
2405
2406sub db_init {
2407 unless ($DB) {
2408 $DB = BDB::db_create $DB_ENV;
2409
2410 cf::sync_job {
2411 eval {
2412 $DB->set_flags (BDB::CHKSUM);
2413
2414 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2416 cf::cleanup "db_open(db): $!" if $!;
2417 };
2418 cf::cleanup "db_open(db): $@" if $@;
2419 };
2420 }
2421}
2422
2423sub db_get($$) {
2424 my $key = "$_[0]/$_[1]";
2425
2426 cf::sync_job {
2427 BDB::db_get $DB, undef, $key, my $data;
2428
2429 $! ? ()
2430 : $data
2431 }
2432}
2433
2434sub db_put($$$) {
2435 BDB::dbreq_pri 4;
2436 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437}
2438
2439=item cf::cache $id => [$paths...], $processversion => $process
2440
2441Generic caching function that returns the value of the resource $id,
2442caching and regenerating as required.
2443
2444This function can block.
2445
2446=cut
2447
2448sub cache {
2449 my ($id, $src, $processversion, $process) = @_;
2450
2451 my $meta =
2452 join "\x00",
2453 $processversion,
2454 map {
2455 aio_stat $_
2456 and Carp::croak "$_: $!";
2457
2458 ($_, (stat _)[7,9])
2459 } @$src;
2460
2461 my $dbmeta = db_get cache => "$id/meta";
2462 if ($dbmeta ne $meta) {
2463 # changed, we may need to process
2464
2465 my @data;
2466 my $md5;
2467
2468 for (0 .. $#$src) {
2469 0 <= aio_load $src->[$_], $data[$_]
2470 or Carp::croak "$src->[$_]: $!";
2471 }
2472
2473 # if processing is expensive, check
2474 # checksum first
2475 if (1) {
2476 $md5 =
2477 join "\x00",
2478 $processversion,
2479 map {
2480 Coro::cede;
2481 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2482 } 0.. $#$src;
2483
2484
2485 my $dbmd5 = db_get cache => "$id/md5";
2486 if ($dbmd5 eq $md5) {
2487 db_put cache => "$id/meta", $meta;
2488
2489 return db_get cache => "$id/data";
2490 }
2491 }
2492
2493 my $t1 = Time::HiRes::time;
2494 my $data = $process->(\@data);
2495 my $t2 = Time::HiRes::time;
2496
2497 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499 db_put cache => "$id/data", $data;
2500 db_put cache => "$id/md5" , $md5;
2501 db_put cache => "$id/meta", $meta;
2502
2503 return $data;
2504 }
2505
2506 db_get cache => "$id/data"
2507}
2508
2509=item fork_call { }, $args
2510
2511Executes the given code block with the given arguments in a seperate
2512process, returning the results. Everything must be serialisable with
2513Coro::Storable. May, of course, block. Note that the executed sub may
2514never block itself or use any form of Event handling.
2515
2516=cut
2517
2518sub fork_call(&@) {
2519 my ($cb, @args) = @_;
2520
2521# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522# or die "socketpair: $!";
2523 pipe my $fh1, my $fh2
2524 or die "pipe: $!";
2525
2526 if (my $pid = fork) {
2527 close $fh2;
2528
2529 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530 $res = Coro::Storable::thaw $res;
2531
2532 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534 die $$res unless "ARRAY" eq ref $res;
2535
2536 return wantarray ? @$res : $res->[-1];
2537 } else {
2538 reset_signals;
2539 local $SIG{__WARN__};
2540 local $SIG{__DIE__};
2541 eval {
2542 close $fh1;
2543
2544 my @res = eval { $cb->(@args) };
2545 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546 };
2547
2548 warn $@ if $@;
2549 _exit 0;
2550 }
2551}
2552
2553#############################################################################
2554# the server's init and main functions 2738# the server's init and main functions
2555 2739
2556sub load_facedata($) { 2740sub load_facedata($) {
2557 my ($path) = @_; 2741 my ($path) = @_;
2558 2742
2570 { 2754 {
2571 my $faces = $facedata->{faceinfo}; 2755 my $faces = $facedata->{faceinfo};
2572 2756
2573 while (my ($face, $info) = each %$faces) { 2757 while (my ($face, $info) = each %$faces) {
2574 my $idx = (cf::face::find $face) || cf::face::alloc $face; 2758 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2575 cf::face::set $idx, $info->{visibility}, $info->{magicmap}; 2759 cf::face::set_visibility $idx, $info->{visibility};
2760 cf::face::set_magicmap $idx, $info->{magicmap};
2576 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32}; 2761 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2577 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64}; 2762 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2578 Coro::cede; 2763
2764 cf::cede_to_tick;
2579 } 2765 }
2580 2766
2581 while (my ($face, $info) = each %$faces) { 2767 while (my ($face, $info) = each %$faces) {
2582 next unless $info->{smooth}; 2768 next unless $info->{smooth};
2583 my $idx = cf::face::find $face 2769 my $idx = cf::face::find $face
2584 or next; 2770 or next;
2585 if (my $smooth = cf::face::find $info->{smooth}) { 2771 if (my $smooth = cf::face::find $info->{smooth}) {
2772 cf::face::set_smooth $idx, $smooth;
2586 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel}; 2773 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587 } else { 2774 } else {
2588 warn "smooth face '$info->{smooth}' not found for face '$face'"; 2775 warn "smooth face '$info->{smooth}' not found for face '$face'";
2589 } 2776 }
2590 Coro::cede; 2777
2778 cf::cede_to_tick;
2591 } 2779 }
2592 } 2780 }
2593 2781
2594 { 2782 {
2595 my $anims = $facedata->{animinfo}; 2783 my $anims = $facedata->{animinfo};
2596 2784
2597 while (my ($anim, $info) = each %$anims) { 2785 while (my ($anim, $info) = each %$anims) {
2598 cf::anim::set $anim, $info->{frames}, $info->{facings}; 2786 cf::anim::set $anim, $info->{frames}, $info->{facings};
2599 Coro::cede; 2787 cf::cede_to_tick;
2600 } 2788 }
2601 2789
2602 cf::anim::invalidate_all; # d'oh 2790 cf::anim::invalidate_all; # d'oh
2791 }
2792
2793 {
2794 # TODO: for gcfclient pleasure, we should give resources
2795 # that gcfclient doesn't grok a >10000 face index.
2796 my $res = $facedata->{resource};
2797 my $enc = JSON::XS->new->utf8->canonical;
2798
2799 while (my ($name, $info) = each %$res) {
2800 my $meta = $enc->encode ({
2801 name => $name,
2802 type => $info->{type},
2803 copyright => $info->{copyright}, #TODO#
2804 });
2805
2806 my $idx = (cf::face::find $name) || cf::face::alloc $name;
2807
2808 if ($name =~ /\.jpg$/) {
2809 cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
2810 cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
2811 } else {
2812 my $data = pack "(w/a*)*", $meta, $info->{data};
2813 my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
2814
2815 cf::face::set_type $idx, 1;
2816 cf::face::set_data $idx, 0, $data, $chk;
2817 }
2818
2819 cf::cede_to_tick;
2820 }
2603 } 2821 }
2604 2822
2605 1 2823 1
2606} 2824}
2607 2825
2608sub reload_regions { 2826sub reload_regions {
2609 load_resource_file "$MAPDIR/regions" 2827 load_resource_file "$MAPDIR/regions"
2610 or die "unable to load regions file\n"; 2828 or die "unable to load regions file\n";
2829
2830 for (cf::region::list) {
2831 $_->{match} = qr/$_->{match}/
2832 if exists $_->{match};
2833 }
2611} 2834}
2612 2835
2613sub reload_facedata { 2836sub reload_facedata {
2614 load_facedata "$DATADIR/facedata" 2837 load_facedata "$DATADIR/facedata"
2615 or die "unable to load facedata\n"; 2838 or die "unable to load facedata\n";
2616} 2839}
2617 2840
2618sub reload_archetypes { 2841sub reload_archetypes {
2842 load_resource_file "$DATADIR/archetypes"
2843 or die "unable to load archetypes\n";
2844 #d# NEED to laod twice to resolve forward references
2845 # this really needs to be done in an extra post-pass
2846 # (which needs to be synchronous, so solve it differently)
2619 load_resource_file "$DATADIR/archetypes" 2847 load_resource_file "$DATADIR/archetypes"
2620 or die "unable to load archetypes\n"; 2848 or die "unable to load archetypes\n";
2621} 2849}
2622 2850
2623sub reload_treasures { 2851sub reload_treasures {
2695 }, 2923 },
2696 ); 2924 );
2697 } 2925 }
2698} 2926}
2699 2927
2928sub write_runtime {
2929 my $runtime = "$LOCALDIR/runtime";
2930
2931 # first touch the runtime file to show we are still running:
2932 # the fsync below can take a very very long time.
2933
2934 IO::AIO::aio_utime $runtime, undef, undef;
2935
2936 my $guard = cf::lock_acquire "write_runtime";
2937
2938 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
2939 or return;
2940
2941 my $value = $cf::RUNTIME + 90 + 10;
2942 # 10 is the runtime save interval, for a monotonic clock
2943 # 60 allows for the watchdog to kill the server.
2944
2945 (aio_write $fh, 0, (length $value), $value, 0) <= 0
2946 and return;
2947
2948 # always fsync - this file is important
2949 aio_fsync $fh
2950 and return;
2951
2952 # touch it again to show we are up-to-date
2953 aio_utime $fh, undef, undef;
2954
2955 close $fh
2956 or return;
2957
2958 aio_rename "$runtime~", $runtime
2959 and return;
2960
2961 warn "runtime file written.\n";
2962
2963 1
2964}
2965
2700sub emergency_save() { 2966sub emergency_save() {
2701 my $freeze_guard = cf::freeze_mainloop; 2967 my $freeze_guard = cf::freeze_mainloop;
2702 2968
2703 warn "enter emergency perl save\n"; 2969 warn "enter emergency perl save\n";
2704 2970
2779 %EXT_CORO = (); 3045 %EXT_CORO = ();
2780 3046
2781 warn "removing commands"; 3047 warn "removing commands";
2782 %COMMAND = (); 3048 %COMMAND = ();
2783 3049
2784 warn "removing ext commands"; 3050 warn "removing ext/exti commands";
2785 %EXTCMD = (); 3051 %EXTCMD = ();
3052 %EXTICMD = ();
2786 3053
2787 warn "unloading/nuking all extensions"; 3054 warn "unloading/nuking all extensions";
2788 for my $pkg (@EXTS) { 3055 for my $pkg (@EXTS) {
2789 warn "... unloading $pkg"; 3056 warn "... unloading $pkg";
2790 3057

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