ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/lib/cf.pm
(Generate patch)

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.95 by root, Fri Dec 22 02:04:20 2006 UTC vs.
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC

1package cf; 1package cf;
2
3use utf8;
4use strict;
2 5
3use Symbol; 6use Symbol;
4use List::Util; 7use List::Util;
5use Storable; 8use Storable;
6use Opcode; 9use Opcode;
7use Safe; 10use Safe;
8use Safe::Hole; 11use Safe::Hole;
9 12
13use Coro 3.3;
14use Coro::Event;
15use Coro::Timer;
16use Coro::Signal;
17use Coro::Semaphore;
18use Coro::AIO;
19
20use Digest::MD5;
21use Fcntl;
10use IO::AIO (); 22use IO::AIO 2.31 ();
11use YAML::Syck (); 23use YAML::Syck ();
12use Time::HiRes; 24use Time::HiRes;
13use Event; 25
14$Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
15 27
16# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
18 30
19use strict; 31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20 32
21sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22 34
23our %COMMAND = (); 35our %COMMAND = ();
24our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
25our %EXTCMD = (); 37our %EXTCMD = ();
26 38
27_init_vars;
28
29our @EVENT; 39our @EVENT;
30our $LIBDIR = datadir . "/ext"; 40our $LIBDIR = datadir . "/ext";
31 41
32our $TICK = MAX_TIME * 1e-6; 42our $TICK = MAX_TIME * 1e-6;
33our $TICK_WATCHER; 43our $TICK_WATCHER;
34our $NEXT_TICK; 44our $NEXT_TICK;
45our $NOW;
35 46
36our %CFG; 47our %CFG;
37 48
38our $UPTIME; $UPTIME ||= time; 49our $UPTIME; $UPTIME ||= time;
50our $RUNTIME;
51
52our %MAP; # all maps
53our $LINK_MAP; # the special {link} map
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO;
57
58binmode STDOUT;
59binmode STDERR;
60
61# read virtual server time, if available
62unless ($RUNTIME || !-e cf::localdir . "/runtime") {
63 open my $fh, "<", cf::localdir . "/runtime"
64 or die "unable to read runtime file: $!";
65 $RUNTIME = <$fh> + 0.;
66}
67
68mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS;
73
74# a special map that is always available
75our $LINK_MAP;
76
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
39 78
40############################################################################# 79#############################################################################
41 80
42=head2 GLOBAL VARIABLES 81=head2 GLOBAL VARIABLES
43 82
44=over 4 83=over 4
45 84
46=item $cf::UPTIME 85=item $cf::UPTIME
47 86
48The timestamp of the server start (so not actually an uptime). 87The timestamp of the server start (so not actually an uptime).
88
89=item $cf::RUNTIME
90
91The time this server has run, starts at 0 and is increased by $cf::TICK on
92every server tick.
49 93
50=item $cf::LIBDIR 94=item $cf::LIBDIR
51 95
52The perl library directory, where extensions and cf-specific modules can 96The perl library directory, where extensions and cf-specific modules can
53be found. It will be added to C<@INC> automatically. 97be found. It will be added to C<@INC> automatically.
98
99=item $cf::NOW
100
101The time of the last (current) server tick.
54 102
55=item $cf::TICK 103=item $cf::TICK
56 104
57The interval between server ticks, in seconds. 105The interval between server ticks, in seconds.
58 106
66=cut 114=cut
67 115
68BEGIN { 116BEGIN {
69 *CORE::GLOBAL::warn = sub { 117 *CORE::GLOBAL::warn = sub {
70 my $msg = join "", @_; 118 my $msg = join "", @_;
119 utf8::encode $msg;
120
71 $msg .= "\n" 121 $msg .= "\n"
72 unless $msg =~ /\n$/; 122 unless $msg =~ /\n$/;
73 123
74 print STDERR "cfperl: $msg";
75 LOG llevError, "cfperl: $msg"; 124 LOG llevError, "cfperl: $msg";
76 }; 125 };
77} 126}
78 127
79@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
84@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 133@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85 134
86# we bless all objects into (empty) derived classes to force a method lookup 135# we bless all objects into (empty) derived classes to force a method lookup
87# within the Safe compartment. 136# within the Safe compartment.
88for my $pkg (qw( 137for my $pkg (qw(
89 cf::global 138 cf::global cf::attachable
90 cf::object cf::object::player 139 cf::object cf::object::player
91 cf::client cf::player 140 cf::client cf::player
92 cf::arch cf::living 141 cf::arch cf::living
93 cf::map cf::party cf::region 142 cf::map cf::party cf::region
94)) { 143)) {
132sub to_json($) { 181sub to_json($) {
133 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134 JSON::Syck::Dump $_[0] 183 JSON::Syck::Dump $_[0]
135} 184}
136 185
186=item cf::sync_job { BLOCK }
187
188The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly
190reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
191
192If it must be done, put the blocking parts into C<sync_job>. This will run
193the given BLOCK in another coroutine while waiting for the result. The
194server will be frozen during this time, so the block should either finish
195fast or be very important.
196
197=cut
198
199sub sync_job(&) {
200 my ($job) = @_;
201
202 if ($Coro::current == $Coro::main) {
203 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/
205
206 # TODO: use suspend/resume instead
207 # (but this is cancel-safe)
208 local $FREEZE = 1;
209
210 my $busy = 1;
211 my @res;
212
213 (Coro::async {
214 @res = eval { $job->() };
215 warn $@ if $@;
216 undef $busy;
217 })->prio (Coro::PRIO_MAX);
218
219 while ($busy) {
220 Coro::cede_notself;
221 Event::one_event unless Coro::nready;
222 }
223
224 wantarray ? @res : $res[0]
225 } else {
226 # we are in another coroutine, how wonderful, everything just works
227
228 $job->()
229 }
230}
231
232=item $coro = cf::coro { BLOCK }
233
234Creates and returns a new coro. This coro is automcatially being canceled
235when the extension calling this is being unloaded.
236
237=cut
238
239sub coro(&) {
240 my $cb = shift;
241
242 my $coro; $coro = async {
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248
249 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0};
251 });
252 $EXT_CORO{$coro+0} = $coro;
253
254 $coro
255}
256
257sub write_runtime {
258 my $runtime = cf::localdir . "/runtime";
259
260 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261 or return;
262
263 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
264 (aio_write $fh, 0, (length $value), $value, 0) <= 0
265 and return;
266
267 aio_fsync $fh
268 and return;
269
270 close $fh
271 or return;
272
273 aio_rename "$runtime~", $runtime
274 and return;
275
276 1
277}
278
137=back 279=back
138 280
139=cut 281=cut
282
283#############################################################################
284
285package cf::path;
286
287sub new {
288 my ($class, $path, $base) = @_;
289
290 $path = $path->as_string if ref $path;
291
292 my $self = bless { }, $class;
293
294 if ($path =~ s{^\?random/}{}) {
295 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296 $self->{random} = cf::from_json $data;
297 } else {
298 if ($path =~ s{^~([^/]+)?}{}) {
299 $self->{user_rel} = 1;
300
301 if (defined $1) {
302 $self->{user} = $1;
303 } elsif ($base =~ m{^~([^/]+)/}) {
304 $self->{user} = $1;
305 } else {
306 warn "cannot resolve user-relative path without user <$path,$base>\n";
307 }
308 } elsif ($path =~ /^\//) {
309 # already absolute
310 } else {
311 $base =~ s{[^/]+/?$}{};
312 return $class->new ("$base/$path");
313 }
314
315 for ($path) {
316 redo if s{/\.?/}{/};
317 redo if s{/[^/]+/\.\./}{/};
318 }
319 }
320
321 $self->{path} = $path;
322
323 $self
324}
325
326# the name / primary key / in-game path
327sub as_string {
328 my ($self) = @_;
329
330 $self->{user_rel} ? "~$self->{user}$self->{path}"
331 : $self->{random} ? "?random/$self->{path}"
332 : $self->{path}
333}
334
335# the displayed name, this is a one way mapping
336sub visible_name {
337 my ($self) = @_;
338
339# if (my $rmp = $self->{random}) {
340# # todo: be more intelligent about this
341# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342# } else {
343 $self->as_string
344# }
345}
346
347# escape the /'s in the path
348sub _escaped_path {
349 # ∕ is U+2215
350 (my $path = $_[0]{path}) =~ s/\//∕/g;
351 $path
352}
353
354# the original (read-only) location
355sub load_path {
356 my ($self) = @_;
357
358 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359}
360
361# the temporary/swap location
362sub save_path {
363 my ($self) = @_;
364
365 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368}
369
370# the unique path, might be eq to save_path
371sub uniq_path {
372 my ($self) = @_;
373
374 $self->{user_rel} || $self->{random}
375 ? undef
376 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377}
378
379# return random map parameters, or undef
380sub random_map_params {
381 my ($self) = @_;
382
383 $self->{random}
384}
385
386# this is somewhat ugly, but style maps do need special treatment
387sub is_style_map {
388 $_[0]{path} =~ m{^/styles/}
389}
390
391package cf;
140 392
141############################################################################# 393#############################################################################
142 394
143=head2 ATTACHABLE OBJECTS 395=head2 ATTACHABLE OBJECTS
144 396
249 my ($self, $victim) = @_; 501 my ($self, $victim) = @_;
250 ... 502 ...
251 } 503 }
252 } 504 }
253 505
506=item $attachable->valid
507
508Just because you have a perl object does not mean that the corresponding
509C-level object still exists. If you try to access an object that has no
510valid C counterpart anymore you get an exception at runtime. This method
511can be used to test for existence of the C object part without causing an
512exception.
513
254=cut 514=cut
255 515
256# the following variables are defined in .xs and must not be re-created 516# the following variables are defined in .xs and must not be re-created
257our @CB_GLOBAL = (); # registry for all global events 517our @CB_GLOBAL = (); # registry for all global events
518our @CB_ATTACHABLE = (); # registry for all attachables
258our @CB_OBJECT = (); # all objects (should not be used except in emergency) 519our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259our @CB_PLAYER = (); 520our @CB_PLAYER = ();
260our @CB_CLIENT = (); 521our @CB_CLIENT = ();
261our @CB_TYPE = (); # registry for type (cf-object class) based events 522our @CB_TYPE = (); # registry for type (cf-object class) based events
262our @CB_MAP = (); 523our @CB_MAP = ();
263 524
264my %attachment; 525my %attachment;
265 526
266sub _attach_cb($$$$) { 527sub _attach_cb($$$$) {
267 my ($registry, $event, $prio, $cb) = @_; 528 my ($registry, $event, $prio, $cb) = @_;
272 533
273 @{$registry->[$event]} = sort 534 @{$registry->[$event]} = sort
274 { $a->[0] cmp $b->[0] } 535 { $a->[0] cmp $b->[0] }
275 @{$registry->[$event] || []}, $cb; 536 @{$registry->[$event] || []}, $cb;
276} 537}
538
539# hack
540my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277 541
278# attach handles attaching event callbacks 542# attach handles attaching event callbacks
279# the only thing the caller has to do is pass the correct 543# the only thing the caller has to do is pass the correct
280# registry (== where the callback attaches to). 544# registry (== where the callback attaches to).
281sub _attach { 545sub _attach {
283 547
284 my $object_type; 548 my $object_type;
285 my $prio = 0; 549 my $prio = 0;
286 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 550 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287 551
552 #TODO: get rid of this hack
553 if ($attachable_klass{$klass}) {
554 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
555 }
556
288 while (@arg) { 557 while (@arg) {
289 my $type = shift @arg; 558 my $type = shift @arg;
290 559
291 if ($type eq "prio") { 560 if ($type eq "prio") {
292 $prio = shift @arg; 561 $prio = shift @arg;
367 my ($obj, $name) = @_; 636 my ($obj, $name) = @_;
368 637
369 exists $obj->{_attachment}{$name} 638 exists $obj->{_attachment}{$name}
370} 639}
371 640
372for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 641for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373 eval "#line " . __LINE__ . " 'cf.pm' 642 eval "#line " . __LINE__ . " 'cf.pm'
374 sub cf::\L$klass\E::_attach_registry { 643 sub cf::\L$klass\E::_attach_registry {
375 (\\\@CB_$klass, KLASS_$klass) 644 (\\\@CB_$klass, KLASS_$klass)
376 } 645 }
377 646
413 } 682 }
414 683
415 0 684 0
416} 685}
417 686
418=item $bool = cf::invoke EVENT_GLOBAL_XXX, ... 687=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419 688
420=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...) 689=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425 690
426=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428Generate a global/object/player/map-specific event with the given arguments. 691Generate an object-specific event with the given arguments.
429 692
430This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be 693This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431removed in future versions), and there is no public API to access override 694removed in future versions), and there is no public API to access override
432results (if you must, access C<@cf::invoke_results> directly). 695results (if you must, access C<@cf::invoke_results> directly).
433 696
434=back 697=back
435 698
436=cut 699=cut
437 700
438############################################################################# 701#############################################################################
439
440=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442Attachable objects includes objects, players, clients and maps.
443
444=over 4
445
446=item $object->valid
447
448Just because you have a perl object does not mean that the corresponding
449C-level object still exists. If you try to access an object that has no
450valid C counterpart anymore you get an exception at runtime. This method
451can be used to test for existence of the C object part without causing an
452exception.
453
454=back
455
456=cut
457
458#############################################################################
459# object support 702# object support
460 703
461sub instantiate {
462 my ($obj, $data) = @_;
463
464 $data = from_json $data;
465
466 for (@$data) {
467 my ($name, $args) = @$_;
468
469 $obj->attach ($name, %{$args || {} });
470 }
471}
472
473# basically do the same as instantiate, without calling instantiate
474sub reattach { 704sub reattach {
705 # basically do the same as instantiate, without calling instantiate
475 my ($obj) = @_; 706 my ($obj) = @_;
707
476 my $registry = $obj->registry; 708 my $registry = $obj->registry;
477 709
478 @$registry = (); 710 @$registry = ();
479 711
480 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 712 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
489 warn "object uses attachment '$name' that is not available, postponing.\n"; 721 warn "object uses attachment '$name' that is not available, postponing.\n";
490 } 722 }
491 } 723 }
492} 724}
493 725
494sub object_freezer_save { 726cf::attachable->attach (
495 my ($filename, $rdata, $objs) = @_;
496
497 if (length $$rdata) {
498 warn sprintf "saving %s (%d,%d)\n",
499 $filename, length $$rdata, scalar @$objs;
500
501 if (open my $fh, ">:raw", "$filename~") {
502 chmod SAVE_MODE, $fh;
503 syswrite $fh, $$rdata;
504 close $fh;
505
506 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507 chmod SAVE_MODE, $fh;
508 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509 close $fh;
510 rename "$filename.pst~", "$filename.pst";
511 } else {
512 unlink "$filename.pst";
513 }
514
515 rename "$filename~", $filename;
516 } else {
517 warn "FATAL: $filename~: $!\n";
518 }
519 } else {
520 unlink $filename;
521 unlink "$filename.pst";
522 }
523}
524
525sub object_freezer_as_string {
526 my ($rdata, $objs) = @_;
527
528 use Data::Dumper;
529
530 $$rdata . Dumper $objs
531}
532
533sub object_thawer_load {
534 my ($filename) = @_;
535
536 local $/;
537
538 my $av;
539
540 #TODO: use sysread etc.
541 if (open my $data, "<:raw:perlio", $filename) {
542 $data = <$data>;
543 if (open my $pst, "<:raw:perlio", "$filename.pst") {
544 $av = eval { (Storable::thaw <$pst>)->{objs} };
545 }
546 return ($data, $av);
547 }
548
549 ()
550}
551
552cf::object->attach (
553 prio => -1000000, 727 prio => -1000000,
728 on_instantiate => sub {
729 my ($obj, $data) = @_;
730
731 $data = from_json $data;
732
733 for (@$data) {
734 my ($name, $args) = @$_;
735
736 $obj->attach ($name, %{$args || {} });
737 }
738 },
739 on_reattach => \&reattach,
554 on_clone => sub { 740 on_clone => sub {
555 my ($src, $dst) = @_; 741 my ($src, $dst) = @_;
556 742
557 @{$dst->registry} = @{$src->registry}; 743 @{$dst->registry} = @{$src->registry};
558 744
560 746
561 %{$dst->{_attachment}} = %{$src->{_attachment}} 747 %{$dst->{_attachment}} = %{$src->{_attachment}}
562 if exists $src->{_attachment}; 748 if exists $src->{_attachment};
563 }, 749 },
564); 750);
751
752sub object_freezer_save {
753 my ($filename, $rdata, $objs) = @_;
754
755 sync_job {
756 if (length $$rdata) {
757 warn sprintf "saving %s (%d,%d)\n",
758 $filename, length $$rdata, scalar @$objs;
759
760 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761 chmod SAVE_MODE, $fh;
762 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763 aio_fsync $fh;
764 close $fh;
765
766 if (@$objs) {
767 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768 chmod SAVE_MODE, $fh;
769 my $data = Storable::nfreeze { version => 1, objs => $objs };
770 aio_write $fh, 0, (length $data), $data, 0;
771 aio_fsync $fh;
772 close $fh;
773 aio_rename "$filename.pst~", "$filename.pst";
774 }
775 } else {
776 aio_unlink "$filename.pst";
777 }
778
779 aio_rename "$filename~", $filename;
780 } else {
781 warn "FATAL: $filename~: $!\n";
782 }
783 } else {
784 aio_unlink $filename;
785 aio_unlink "$filename.pst";
786 }
787 }
788}
789
790sub object_freezer_as_string {
791 my ($rdata, $objs) = @_;
792
793 use Data::Dumper;
794
795 $$rdata . Dumper $objs
796}
797
798sub object_thawer_load {
799 my ($filename) = @_;
800
801 my ($data, $av);
802
803 (aio_load $filename, $data) >= 0
804 or return;
805
806 unless (aio_stat "$filename.pst") {
807 (aio_load "$filename.pst", $av) >= 0
808 or return;
809 $av = eval { (Storable::thaw <$av>)->{objs} };
810 }
811
812 return ($data, $av);
813}
565 814
566############################################################################# 815#############################################################################
567# command handling &c 816# command handling &c
568 817
569=item cf::register_command $name => \&callback($ob,$args); 818=item cf::register_command $name => \&callback($ob,$args);
789 $self->send ("ext " . to_json \%msg); 1038 $self->send ("ext " . to_json \%msg);
790} 1039}
791 1040
792=back 1041=back
793 1042
1043
1044=head3 cf::map
1045
1046=over 4
1047
1048=cut
1049
1050package cf::map;
1051
1052use Fcntl;
1053use Coro::AIO;
1054
1055our $MAX_RESET = 7200;
1056our $DEFAULT_RESET = 3600;
1057
1058sub generate_random_map {
1059 my ($path, $rmp) = @_;
1060
1061 # mit "rum" bekleckern, nicht
1062 cf::map::_create_random_map
1063 $path,
1064 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067 $rmp->{exit_on_final_map},
1068 $rmp->{xsize}, $rmp->{ysize},
1069 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074 (cf::region::find $rmp->{region})
1075}
1076
1077# and all this just because we cannot iterate over
1078# all maps in C++...
1079sub change_all_map_light {
1080 my ($change) = @_;
1081
1082 $_->change_map_light ($change) for values %cf::MAP;
1083}
1084
1085sub try_load_header($) {
1086 my ($path) = @_;
1087
1088 utf8::encode $path;
1089 aio_open $path, O_RDONLY, 0
1090 or return;
1091
1092 my $map = cf::map::new
1093 or return;
1094
1095 $map->load_header ($path)
1096 or return;
1097
1098 $map->{load_path} = $path;
1099
1100 $map
1101}
1102
1103sub find_map {
1104 my ($path, $origin) = @_;
1105
1106 #warn "find_map<$path,$origin>\n";#d#
1107
1108 $path = new cf::path $path, $origin && $origin->path;
1109 my $key = $path->as_string;
1110
1111 $cf::MAP{$key} || do {
1112 # do it the slow way
1113 my $map = try_load_header $path->save_path;
1114
1115 if ($map) {
1116 # safety
1117 $map->{instantiate_time} = $cf::RUNTIME
1118 if $map->{instantiate_time} > $cf::RUNTIME;
1119 } else {
1120 if (my $rmp = $path->random_map_params) {
1121 $map = generate_random_map $key, $rmp;
1122 } else {
1123 $map = try_load_header $path->load_path;
1124 }
1125
1126 $map or return;
1127
1128 $map->{load_original} = 1;
1129 $map->{instantiate_time} = $cf::RUNTIME;
1130 $map->instantiate;
1131
1132 # per-player maps become, after loading, normal maps
1133 $map->per_player (0) if $path->{user_rel};
1134 }
1135
1136 $map->path ($key);
1137 $map->{path} = $path;
1138 $map->last_access ($cf::RUNTIME);
1139
1140 if ($map->should_reset) {
1141 $map->reset;
1142 $map = find_map $path;
1143 }
1144
1145 $cf::MAP{$key} = $map
1146 }
1147}
1148
1149sub load {
1150 my ($self) = @_;
1151
1152 return if $self->in_memory != cf::MAP_SWAPPED;
1153
1154 $self->in_memory (cf::MAP_LOADING);
1155
1156 my $path = $self->{path};
1157
1158 $self->alloc;
1159 $self->load_objects ($self->{load_path}, 1)
1160 or return;
1161
1162 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163 if delete $self->{load_original};
1164
1165 if (my $uniq = $path->uniq_path) {
1166 utf8::encode $uniq;
1167 if (aio_open $uniq, O_RDONLY, 0) {
1168 $self->clear_unique_items;
1169 $self->load_objects ($uniq, 0);
1170 }
1171 }
1172
1173 # now do the right thing for maps
1174 $self->link_multipart_objects;
1175
1176 if ($self->{path}->is_style_map) {
1177 $self->{deny_save} = 1;
1178 $self->{deny_reset} = 1;
1179 } else {
1180 $self->fix_auto_apply;
1181 $self->decay_objects;
1182 $self->update_buttons;
1183 $self->set_darkness_map;
1184 $self->difficulty ($self->estimate_difficulty)
1185 unless $self->difficulty;
1186 $self->activate;
1187 }
1188
1189 $self->in_memory (cf::MAP_IN_MEMORY);
1190}
1191
1192sub load_map_sync {
1193 my ($path, $origin) = @_;
1194
1195 #warn "load_map_sync<$path, $origin>\n";#d#
1196
1197 cf::sync_job {
1198 my $map = cf::map::find_map $path, $origin
1199 or return;
1200 $map->load;
1201 $map
1202 }
1203}
1204
1205sub save {
1206 my ($self) = @_;
1207
1208 my $save = $self->{path}->save_path; utf8::encode $save;
1209 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210
1211 $self->{last_save} = $cf::RUNTIME;
1212
1213 return unless $self->dirty;
1214
1215 $self->{load_path} = $save;
1216
1217 return if $self->{deny_save};
1218
1219 if ($uniq) {
1220 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221 $self->save_objects ($uniq, cf::IO_UNIQUES);
1222 } else {
1223 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224 }
1225}
1226
1227sub swap_out {
1228 my ($self) = @_;
1229
1230 return if $self->players;
1231 return if $self->in_memory != cf::MAP_IN_MEMORY;
1232 return if $self->{deny_save};
1233
1234 $self->save;
1235 $self->clear;
1236 $self->in_memory (cf::MAP_SWAPPED);
1237}
1238
1239sub reset_at {
1240 my ($self) = @_;
1241
1242 # TODO: safety, remove and allow resettable per-player maps
1243 return 1e100 if $self->{path}{user_rel};
1244 return 1e100 if $self->{deny_reset};
1245
1246 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247 my $to = $self->reset_timeout || $DEFAULT_RESET;
1248 $to = $MAX_RESET if $to > $MAX_RESET;
1249
1250 $time + $to
1251}
1252
1253sub should_reset {
1254 my ($self) = @_;
1255
1256 $self->reset_at <= $cf::RUNTIME
1257}
1258
1259sub unlink_save {
1260 my ($self) = @_;
1261
1262 utf8::encode (my $save = $self->{path}->save_path);
1263 aioreq_pri 3; IO::AIO::aio_unlink $save;
1264 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265}
1266
1267sub reset {
1268 my ($self) = @_;
1269
1270 return if $self->players;
1271 return if $self->{path}{user_rel};#d#
1272
1273 warn "resetting map ", $self->path;#d#
1274
1275 delete $cf::MAP{$self->path};
1276
1277 $_->clear_links_to ($self) for values %cf::MAP;
1278
1279 $self->unlink_save;
1280 $self->destroy;
1281}
1282
1283sub customise_for {
1284 my ($map, $ob) = @_;
1285
1286 if ($map->per_player) {
1287 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
1288 }
1289
1290 $map
1291}
1292
1293sub emergency_save {
1294 local $cf::FREEZE = 1;
1295
1296 warn "enter emergency map save\n";
1297
1298 cf::sync_job {
1299 warn "begin emergency map save\n";
1300 $_->save for values %cf::MAP;
1301 };
1302
1303 warn "end emergency map save\n";
1304}
1305
1306package cf;
1307
1308=back
1309
1310
794=head3 cf::object::player 1311=head3 cf::object::player
795 1312
796=over 4 1313=over 4
797 1314
798=item $player_object->reply ($npc, $msg[, $flags]) 1315=item $player_object->reply ($npc, $msg[, $flags])
833 (ref $cf::CFG{"may_$access"} 1350 (ref $cf::CFG{"may_$access"}
834 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1351 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
835 : $cf::CFG{"may_$access"}) 1352 : $cf::CFG{"may_$access"})
836} 1353}
837 1354
1355sub cf::object::player::enter_link {
1356 my ($self) = @_;
1357
1358 return if $self->map == $LINK_MAP;
1359
1360 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361 if $self->map;
1362
1363 $self->enter_map ($LINK_MAP, 20, 20);
1364 $self->deactivate_recursive;
1365}
1366
1367sub cf::object::player::leave_link {
1368 my ($self, $map, $x, $y) = @_;
1369
1370 my $link_pos = delete $self->{_link_pos};
1371
1372 unless ($map) {
1373 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375 # restore original map position
1376 ($map, $x, $y) = @{ $link_pos || [] };
1377 $map = cf::map::find_map $map;
1378
1379 unless ($map) {
1380 ($map, $x, $y) = @$EMERGENCY_POSITION;
1381 $map = cf::map::find_map $map
1382 or die "FATAL: cannot load emergency map\n";
1383 }
1384 }
1385
1386 ($x, $y) = (-1, -1)
1387 unless (defined $x) && (defined $y);
1388
1389 # use -1 or undef as default coordinates, not 0, 0
1390 ($x, $y) = ($map->enter_x, $map->enter_y)
1391 if $x <=0 && $y <= 0;
1392
1393 $map->load;
1394
1395 $self->activate_recursive;
1396 $self->enter_map ($map, $x, $y);
1397}
1398
1399=item $player_object->goto_map ($map, $x, $y)
1400
1401=cut
1402
1403sub cf::object::player::goto_map {
1404 my ($self, $path, $x, $y) = @_;
1405
1406 $self->enter_link;
1407
1408 (Coro::async {
1409 $path = new cf::path $path;
1410
1411 my $map = cf::map::find_map $path->as_string;
1412 $map = $map->customise_for ($self) if $map;
1413
1414 warn "entering ", $map->path, " at ($x, $y)\n"
1415 if $map;
1416
1417 $self->leave_link ($map, $x, $y);
1418 })->prio (1);
1419}
1420
1421=item $player_object->enter_exit ($exit_object)
1422
1423=cut
1424
1425sub parse_random_map_params {
1426 my ($spec) = @_;
1427
1428 my $rmp = { # defaults
1429 xsize => 10,
1430 ysize => 10,
1431 };
1432
1433 for (split /\n/, $spec) {
1434 my ($k, $v) = split /\s+/, $_, 2;
1435
1436 $rmp->{lc $k} = $v if (length $k) && (length $v);
1437 }
1438
1439 $rmp
1440}
1441
1442sub prepare_random_map {
1443 my ($exit) = @_;
1444
1445 # all this does is basically replace the /! path by
1446 # a new random map path (?random/...) with a seed
1447 # that depends on the exit object
1448
1449 my $rmp = parse_random_map_params $exit->msg;
1450
1451 if ($exit->map) {
1452 $rmp->{region} = $exit->map->region_name;
1453 $rmp->{origin_map} = $exit->map->path;
1454 $rmp->{origin_x} = $exit->x;
1455 $rmp->{origin_y} = $exit->y;
1456 }
1457
1458 $rmp->{random_seed} ||= $exit->random_seed;
1459
1460 my $data = cf::to_json $rmp;
1461 my $md5 = Digest::MD5::md5_hex $data;
1462
1463 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1464 aio_write $fh, 0, (length $data), $data, 0;
1465
1466 $exit->slaying ("?random/$md5");
1467 $exit->msg (undef);
1468 }
1469}
1470
1471sub cf::object::player::enter_exit {
1472 my ($self, $exit) = @_;
1473
1474 return unless $self->type == cf::PLAYER;
1475
1476 $self->enter_link;
1477
1478 (Coro::async {
1479 unless (eval {
1480
1481 prepare_random_map $exit
1482 if $exit->slaying eq "/!";
1483
1484 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486
1487 1;
1488 }) {
1489 $self->message ("Something went wrong deep within the crossfire server. "
1490 . "I'll try to bring you back to the map you were before. "
1491 . "Please report this to the dungeon master",
1492 cf::NDI_UNIQUE | cf::NDI_RED);
1493
1494 warn "ERROR in enter_exit: $@";
1495 $self->leave_link;
1496 }
1497 })->prio (1);
1498}
1499
838=head3 cf::client 1500=head3 cf::client
839 1501
840=over 4 1502=over 4
841 1503
842=item $client->send_drawinfo ($text, $flags) 1504=item $client->send_drawinfo ($text, $flags)
895 1557
896 if (@{ $ns->{query_queue} } == @$queue) { 1558 if (@{ $ns->{query_queue} } == @$queue) {
897 if (@$queue) { 1559 if (@$queue) {
898 $ns->send_packet ($ns->{query_queue}[0][0]); 1560 $ns->send_packet ($ns->{query_queue}[0][0]);
899 } else { 1561 } else {
900 $ns->state (ST_PLAYING); 1562 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
901 } 1563 }
902 } 1564 }
1565 },
1566);
1567
1568=item $client->coro (\&cb)
1569
1570Create a new coroutine, running the specified callback. The coroutine will
1571be automatically cancelled when the client gets destroyed (e.g. on logout,
1572or loss of connection).
1573
1574=cut
1575
1576sub cf::client::coro {
1577 my ($self, $cb) = @_;
1578
1579 my $coro; $coro = async {
1580 eval {
1581 $cb->();
1582 };
1583 warn $@ if $@;
1584 };
1585
1586 $coro->on_destroy (sub {
1587 delete $self->{_coro}{$coro+0};
1588 });
1589
1590 $self->{_coro}{$coro+0} = $coro;
1591
1592 $coro
1593}
1594
1595cf::client->attach (
1596 on_destroy => sub {
1597 my ($ns) = @_;
1598
1599 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
903 }, 1600 },
904); 1601);
905 1602
906=back 1603=back
907 1604
1132 local $/; 1829 local $/;
1133 *CFG = YAML::Syck::Load <$fh>; 1830 *CFG = YAML::Syck::Load <$fh>;
1134} 1831}
1135 1832
1136sub main { 1833sub main {
1834 # we must not ever block the main coroutine
1835 local $Coro::idle = sub {
1836 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1837 (Coro::unblock_sub {
1838 Event::one_event;
1839 })->();
1840 };
1841
1137 cfg_load; 1842 cfg_load;
1138 db_load; 1843 db_load;
1139 load_extensions; 1844 load_extensions;
1140 Event::loop; 1845 Event::loop;
1141} 1846}
1142 1847
1143############################################################################# 1848#############################################################################
1144# initialisation 1849# initialisation
1145 1850
1146sub _perl_reload(&) { 1851sub reload() {
1147 my ($msg) = @_; 1852 # can/must only be called in main
1853 if ($Coro::current != $Coro::main) {
1854 warn "can only reload from main coroutine\n";
1855 return;
1856 }
1148 1857
1149 $msg->("reloading..."); 1858 warn "reloading...";
1859
1860 local $FREEZE = 1;
1861 cf::emergency_save;
1150 1862
1151 eval { 1863 eval {
1864 # if anything goes wrong in here, we should simply crash as we already saved
1865
1152 # cancel all watchers 1866 # cancel all watchers
1153 for (Event::all_watchers) { 1867 for (Event::all_watchers) {
1154 $_->cancel if $_->data & WF_AUTOCANCEL; 1868 $_->cancel if $_->data & WF_AUTOCANCEL;
1155 } 1869 }
1156 1870
1871 # cancel all extension coros
1872 $_->cancel for values %EXT_CORO;
1873 %EXT_CORO = ();
1874
1157 # unload all extensions 1875 # unload all extensions
1158 for (@exts) { 1876 for (@exts) {
1159 $msg->("unloading <$_>"); 1877 warn "unloading <$_>";
1160 unload_extension $_; 1878 unload_extension $_;
1161 } 1879 }
1162 1880
1163 # unload all modules loaded from $LIBDIR 1881 # unload all modules loaded from $LIBDIR
1164 while (my ($k, $v) = each %INC) { 1882 while (my ($k, $v) = each %INC) {
1165 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 1883 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1166 1884
1167 $msg->("removing <$k>"); 1885 warn "removing <$k>";
1168 delete $INC{$k}; 1886 delete $INC{$k};
1169 1887
1170 $k =~ s/\.pm$//; 1888 $k =~ s/\.pm$//;
1171 $k =~ s/\//::/g; 1889 $k =~ s/\//::/g;
1172 1890
1177 Symbol::delete_package $k; 1895 Symbol::delete_package $k;
1178 } 1896 }
1179 1897
1180 # sync database to disk 1898 # sync database to disk
1181 cf::db_sync; 1899 cf::db_sync;
1900 IO::AIO::flush;
1182 1901
1183 # get rid of safe::, as good as possible 1902 # get rid of safe::, as good as possible
1184 Symbol::delete_package "safe::$_" 1903 Symbol::delete_package "safe::$_"
1185 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); 1904 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1186 1905
1187 # remove register_script_function callbacks 1906 # remove register_script_function callbacks
1188 # TODO 1907 # TODO
1189 1908
1190 # unload cf.pm "a bit" 1909 # unload cf.pm "a bit"
1193 # don't, removes xs symbols, too, 1912 # don't, removes xs symbols, too,
1194 # and global variables created in xs 1913 # and global variables created in xs
1195 #Symbol::delete_package __PACKAGE__; 1914 #Symbol::delete_package __PACKAGE__;
1196 1915
1197 # reload cf.pm 1916 # reload cf.pm
1198 $msg->("reloading cf.pm"); 1917 warn "reloading cf.pm";
1199 require cf; 1918 require cf;
1919 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1200 1920
1201 # load config and database again 1921 # load config and database again
1202 cf::cfg_load; 1922 cf::cfg_load;
1203 cf::db_load; 1923 cf::db_load;
1204 1924
1205 # load extensions 1925 # load extensions
1206 $msg->("load extensions"); 1926 warn "load extensions";
1207 cf::load_extensions; 1927 cf::load_extensions;
1208 1928
1209 # reattach attachments to objects 1929 # reattach attachments to objects
1210 $msg->("reattach"); 1930 warn "reattach";
1211 _global_reattach; 1931 _global_reattach;
1212 }; 1932 };
1213 $msg->($@) if $@;
1214 1933
1215 $msg->("reloaded"); 1934 if ($@) {
1935 warn $@;
1936 warn "error while reloading, exiting.";
1937 exit 1;
1938 }
1939
1940 warn "reloaded successfully";
1216}; 1941};
1217 1942
1218sub perl_reload() { 1943#############################################################################
1219 _perl_reload { 1944
1220 warn $_[0]; 1945unless ($LINK_MAP) {
1221 print "$_[0]\n"; 1946 $LINK_MAP = cf::map::new;
1222 }; 1947
1948 $LINK_MAP->width (41);
1949 $LINK_MAP->height (41);
1950 $LINK_MAP->alloc;
1951 $LINK_MAP->path ("{link}");
1952 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955 # dirty hack because... archetypes are not yet loaded
1956 Event->timer (
1957 after => 2,
1958 cb => sub {
1959 $_[0]->w->cancel;
1960
1961 # provide some exits "home"
1962 my $exit = cf::object::new "exit";
1963
1964 $exit->slaying ($EMERGENCY_POSITION->[0]);
1965 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968 $LINK_MAP->insert ($exit->clone, 19, 19);
1969 $LINK_MAP->insert ($exit->clone, 19, 20);
1970 $LINK_MAP->insert ($exit->clone, 19, 21);
1971 $LINK_MAP->insert ($exit->clone, 20, 19);
1972 $LINK_MAP->insert ($exit->clone, 20, 21);
1973 $LINK_MAP->insert ($exit->clone, 21, 19);
1974 $LINK_MAP->insert ($exit->clone, 21, 20);
1975 $LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977 $exit->destroy;
1978 });
1979
1980 $LINK_MAP->{deny_save} = 1;
1981 $LINK_MAP->{deny_reset} = 1;
1982
1983 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1223} 1984}
1224 1985
1225register "<global>", __PACKAGE__; 1986register "<global>", __PACKAGE__;
1226 1987
1227register_command "perl-reload" => sub { 1988register_command "reload" => sub {
1228 my ($who, $arg) = @_; 1989 my ($who, $arg) = @_;
1229 1990
1230 if ($who->flag (FLAG_WIZ)) { 1991 if ($who->flag (FLAG_WIZ)) {
1231 _perl_reload { 1992 $who->message ("start of reload.");
1232 warn $_[0]; 1993 reload;
1233 $who->message ($_[0]); 1994 $who->message ("end of reload.");
1234 };
1235 } 1995 }
1236}; 1996};
1237 1997
1238unshift @INC, $LIBDIR; 1998unshift @INC, $LIBDIR;
1239 1999
1240$TICK_WATCHER = Event->timer ( 2000$TICK_WATCHER = Event->timer (
2001 reentrant => 0,
1241 prio => 0, 2002 prio => 0,
1242 at => $NEXT_TICK || 1, 2003 at => $NEXT_TICK || $TICK,
1243 data => WF_AUTOCANCEL, 2004 data => WF_AUTOCANCEL,
1244 cb => sub { 2005 cb => sub {
2006 unless ($FREEZE) {
1245 cf::server_tick; # one server iteration 2007 cf::server_tick; # one server iteration
2008 $RUNTIME += $TICK;
2009 }
1246 2010
1247 my $NOW = Event::time;
1248 $NEXT_TICK += $TICK; 2011 $NEXT_TICK += $TICK;
1249 2012
1250 # if we are delayed by four ticks or more, skip them all 2013 # if we are delayed by four ticks or more, skip them all
1251 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; 2014 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1252 2015
1253 $TICK_WATCHER->at ($NEXT_TICK); 2016 $TICK_WATCHER->at ($NEXT_TICK);
1254 $TICK_WATCHER->start; 2017 $TICK_WATCHER->start;
1255 }, 2018 },
1256); 2019);
1257 2020
1258IO::AIO::max_poll_time $TICK * 0.2; 2021IO::AIO::max_poll_time $TICK * 0.2;
1259 2022
2023Event->io (
1260Event->io (fd => IO::AIO::poll_fileno, 2024 fd => IO::AIO::poll_fileno,
1261 poll => 'r', 2025 poll => 'r',
1262 prio => 5, 2026 prio => 5,
1263 data => WF_AUTOCANCEL, 2027 data => WF_AUTOCANCEL,
1264 cb => \&IO::AIO::poll_cb); 2028 cb => \&IO::AIO::poll_cb,
2029);
2030
2031Event->timer (
2032 data => WF_AUTOCANCEL,
2033 after => 0,
2034 interval => 10,
2035 cb => sub {
2036 (Coro::unblock_sub {
2037 write_runtime
2038 or warn "ERROR: unable to write runtime file: $!";
2039 })->();
2040 },
2041);
1265 2042
12661 20431
1267 2044

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines