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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.98 by root, Fri Dec 22 16:34:00 2006 UTC vs.
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro; 13use Coro 3.3;
14use Coro::Event; 14use Coro::Event;
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18
19use IO::AIO; 18use Coro::AIO;
19
20use Digest::MD5;
21use Fcntl;
22use IO::AIO 2.31 ();
20use YAML::Syck (); 23use YAML::Syck ();
21use Time::HiRes; 24use Time::HiRes;
22 25
23use Event; $Event::Eval = 1; # no idea why this is required, but it is 26use Event; $Event::Eval = 1; # no idea why this is required, but it is
24 27
25# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26$YAML::Syck::ImplicitUnicode = 1; 29$YAML::Syck::ImplicitUnicode = 1;
27 30
28$Coro::main->prio (Coro::PRIO_MIN); 31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
29 32
30sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31 34
32our %COMMAND = (); 35our %COMMAND = ();
33our %COMMAND_TIME = (); 36our %COMMAND_TIME = ();
34our %EXTCMD = (); 37our %EXTCMD = ();
35 38
36_init_vars;
37
38our @EVENT; 39our @EVENT;
39our $LIBDIR = datadir . "/ext"; 40our $LIBDIR = datadir . "/ext";
40 41
41our $TICK = MAX_TIME * 1e-6; 42our $TICK = MAX_TIME * 1e-6;
42our $TICK_WATCHER; 43our $TICK_WATCHER;
43our $NEXT_TICK; 44our $NEXT_TICK;
45our $NOW;
44 46
45our %CFG; 47our %CFG;
46 48
47our $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];
48 78
49############################################################################# 79#############################################################################
50 80
51=head2 GLOBAL VARIABLES 81=head2 GLOBAL VARIABLES
52 82
53=over 4 83=over 4
54 84
55=item $cf::UPTIME 85=item $cf::UPTIME
56 86
57The 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.
58 93
59=item $cf::LIBDIR 94=item $cf::LIBDIR
60 95
61The perl library directory, where extensions and cf-specific modules can 96The perl library directory, where extensions and cf-specific modules can
62be 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.
63 102
64=item $cf::TICK 103=item $cf::TICK
65 104
66The interval between server ticks, in seconds. 105The interval between server ticks, in seconds.
67 106
75=cut 114=cut
76 115
77BEGIN { 116BEGIN {
78 *CORE::GLOBAL::warn = sub { 117 *CORE::GLOBAL::warn = sub {
79 my $msg = join "", @_; 118 my $msg = join "", @_;
119 utf8::encode $msg;
120
80 $msg .= "\n" 121 $msg .= "\n"
81 unless $msg =~ /\n$/; 122 unless $msg =~ /\n$/;
82 123
83 print STDERR "cfperl: $msg";
84 LOG llevError, "cfperl: $msg"; 124 LOG llevError, "cfperl: $msg";
85 }; 125 };
86} 126}
87 127
88@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
93@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 133@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94 134
95# 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
96# within the Safe compartment. 136# within the Safe compartment.
97for my $pkg (qw( 137for my $pkg (qw(
98 cf::global 138 cf::global cf::attachable
99 cf::object cf::object::player 139 cf::object cf::object::player
100 cf::client cf::player 140 cf::client cf::player
101 cf::arch cf::living 141 cf::arch cf::living
102 cf::map cf::party cf::region 142 cf::map cf::party cf::region
103)) { 143)) {
141sub to_json($) { 181sub to_json($) {
142 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
143 JSON::Syck::Dump $_[0] 183 JSON::Syck::Dump $_[0]
144} 184}
145 185
186=item cf::sync_job { BLOCK }
187
188The design of crossfire+ requires that the main coro ($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~", $runtime
274 and return;
275
276 1
277}
278
146=back 279=back
147 280
148=cut 281=cut
282
283#############################################################################
284
285package cf::path;
286
287sub new {
288 my ($class, $path, $base) = @_;
289
290 $path = $path->as_string if ref $path;
291
292 my $self = bless { }, $class;
293
294 # {... are special paths that are not touched
295 # ?xxx/... are special absolute paths
296 # ?random/... random maps
297 # /! non-realised random map exit
298 # /... normal maps
299 # ~/... per-player maps without a specific player (DO NOT USE)
300 # ~user/... per-player map of a specific user
301
302 if ($path =~ /^{/) {
303 # fine as it is
304 } elsif ($path =~ s{^\?random/}{}) {
305 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306 $self->{random} = cf::from_json $data;
307 } else {
308 if ($path =~ s{^~([^/]+)?}{}) {
309 $self->{user_rel} = 1;
310
311 if (defined $1) {
312 $self->{user} = $1;
313 } elsif ($base =~ m{^~([^/]+)/}) {
314 $self->{user} = $1;
315 } else {
316 warn "cannot resolve user-relative path without user <$path,$base>\n";
317 }
318 } elsif ($path =~ /^\//) {
319 # already absolute
320 } else {
321 $base =~ s{[^/]+/?$}{};
322 return $class->new ("$base/$path");
323 }
324
325 for ($path) {
326 redo if s{/\.?/}{/};
327 redo if s{/[^/]+/\.\./}{/};
328 }
329 }
330
331 $self->{path} = $path;
332
333 $self
334}
335
336# the name / primary key / in-game path
337sub as_string {
338 my ($self) = @_;
339
340 $self->{user_rel} ? "~$self->{user}$self->{path}"
341 : $self->{random} ? "?random/$self->{path}"
342 : $self->{path}
343}
344
345# the displayed name, this is a one way mapping
346sub visible_name {
347 my ($self) = @_;
348
349# if (my $rmp = $self->{random}) {
350# # todo: be more intelligent about this
351# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352# } else {
353 $self->as_string
354# }
355}
356
357# escape the /'s in the path
358sub _escaped_path {
359 # ∕ is U+2215
360 (my $path = $_[0]{path}) =~ s/\//∕/g;
361 $path
362}
363
364# the original (read-only) location
365sub load_path {
366 my ($self) = @_;
367
368 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369}
370
371# the temporary/swap location
372sub save_path {
373 my ($self) = @_;
374
375 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378}
379
380# the unique path, might be eq to save_path
381sub uniq_path {
382 my ($self) = @_;
383
384 $self->{user_rel} || $self->{random}
385 ? undef
386 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387}
388
389# return random map parameters, or undef
390sub random_map_params {
391 my ($self) = @_;
392
393 $self->{random}
394}
395
396# this is somewhat ugly, but style maps do need special treatment
397sub is_style_map {
398 $_[0]{path} =~ m{^/styles/}
399}
400
401package cf;
149 402
150############################################################################# 403#############################################################################
151 404
152=head2 ATTACHABLE OBJECTS 405=head2 ATTACHABLE OBJECTS
153 406
269exception. 522exception.
270 523
271=cut 524=cut
272 525
273# the following variables are defined in .xs and must not be re-created 526# the following variables are defined in .xs and must not be re-created
274our @CB_GLOBAL = (); # registry for all global events 527our @CB_GLOBAL = (); # registry for all global events
528our @CB_ATTACHABLE = (); # registry for all attachables
275our @CB_OBJECT = (); # all objects (should not be used except in emergency) 529our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276our @CB_PLAYER = (); 530our @CB_PLAYER = ();
277our @CB_CLIENT = (); 531our @CB_CLIENT = ();
278our @CB_TYPE = (); # registry for type (cf-object class) based events 532our @CB_TYPE = (); # registry for type (cf-object class) based events
279our @CB_MAP = (); 533our @CB_MAP = ();
280 534
281my %attachment; 535my %attachment;
282 536
283sub _attach_cb($$$$) { 537sub _attach_cb($$$$) {
284 my ($registry, $event, $prio, $cb) = @_; 538 my ($registry, $event, $prio, $cb) = @_;
289 543
290 @{$registry->[$event]} = sort 544 @{$registry->[$event]} = sort
291 { $a->[0] cmp $b->[0] } 545 { $a->[0] cmp $b->[0] }
292 @{$registry->[$event] || []}, $cb; 546 @{$registry->[$event] || []}, $cb;
293} 547}
548
549# hack
550my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294 551
295# attach handles attaching event callbacks 552# attach handles attaching event callbacks
296# the only thing the caller has to do is pass the correct 553# the only thing the caller has to do is pass the correct
297# registry (== where the callback attaches to). 554# registry (== where the callback attaches to).
298sub _attach { 555sub _attach {
300 557
301 my $object_type; 558 my $object_type;
302 my $prio = 0; 559 my $prio = 0;
303 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 560 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304 561
562 #TODO: get rid of this hack
563 if ($attachable_klass{$klass}) {
564 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
565 }
566
305 while (@arg) { 567 while (@arg) {
306 my $type = shift @arg; 568 my $type = shift @arg;
307 569
308 if ($type eq "prio") { 570 if ($type eq "prio") {
309 $prio = shift @arg; 571 $prio = shift @arg;
384 my ($obj, $name) = @_; 646 my ($obj, $name) = @_;
385 647
386 exists $obj->{_attachment}{$name} 648 exists $obj->{_attachment}{$name}
387} 649}
388 650
389for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 651for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390 eval "#line " . __LINE__ . " 'cf.pm' 652 eval "#line " . __LINE__ . " 'cf.pm'
391 sub cf::\L$klass\E::_attach_registry { 653 sub cf::\L$klass\E::_attach_registry {
392 (\\\@CB_$klass, KLASS_$klass) 654 (\\\@CB_$klass, KLASS_$klass)
393 } 655 }
394 656
447=cut 709=cut
448 710
449############################################################################# 711#############################################################################
450# object support 712# object support
451 713
452sub instantiate {
453 my ($obj, $data) = @_;
454
455 $data = from_json $data;
456
457 for (@$data) {
458 my ($name, $args) = @$_;
459
460 $obj->attach ($name, %{$args || {} });
461 }
462}
463
464# basically do the same as instantiate, without calling instantiate
465sub reattach { 714sub reattach {
715 # basically do the same as instantiate, without calling instantiate
466 my ($obj) = @_; 716 my ($obj) = @_;
717
467 my $registry = $obj->registry; 718 my $registry = $obj->registry;
468 719
469 @$registry = (); 720 @$registry = ();
470 721
471 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 722 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480 warn "object uses attachment '$name' that is not available, postponing.\n"; 731 warn "object uses attachment '$name' that is not available, postponing.\n";
481 } 732 }
482 } 733 }
483} 734}
484 735
485sub object_freezer_save { 736cf::attachable->attach (
486 my ($filename, $rdata, $objs) = @_;
487
488 if (length $$rdata) {
489 warn sprintf "saving %s (%d,%d)\n",
490 $filename, length $$rdata, scalar @$objs;
491
492 if (open my $fh, ">:raw", "$filename~") {
493 chmod SAVE_MODE, $fh;
494 syswrite $fh, $$rdata;
495 close $fh;
496
497 if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498 chmod SAVE_MODE, $fh;
499 syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500 close $fh;
501 rename "$filename.pst~", "$filename.pst";
502 } else {
503 unlink "$filename.pst";
504 }
505
506 rename "$filename~", $filename;
507 } else {
508 warn "FATAL: $filename~: $!\n";
509 }
510 } else {
511 unlink $filename;
512 unlink "$filename.pst";
513 }
514}
515
516sub object_freezer_as_string {
517 my ($rdata, $objs) = @_;
518
519 use Data::Dumper;
520
521 $$rdata . Dumper $objs
522}
523
524sub object_thawer_load {
525 my ($filename) = @_;
526
527 local $/;
528
529 my $av;
530
531 #TODO: use sysread etc.
532 if (open my $data, "<:raw:perlio", $filename) {
533 $data = <$data>;
534 if (open my $pst, "<:raw:perlio", "$filename.pst") {
535 $av = eval { (Storable::thaw <$pst>)->{objs} };
536 }
537 return ($data, $av);
538 }
539
540 ()
541}
542
543cf::object->attach (
544 prio => -1000000, 737 prio => -1000000,
738 on_instantiate => sub {
739 my ($obj, $data) = @_;
740
741 $data = from_json $data;
742
743 for (@$data) {
744 my ($name, $args) = @$_;
745
746 $obj->attach ($name, %{$args || {} });
747 }
748 },
749 on_reattach => \&reattach,
545 on_clone => sub { 750 on_clone => sub {
546 my ($src, $dst) = @_; 751 my ($src, $dst) = @_;
547 752
548 @{$dst->registry} = @{$src->registry}; 753 @{$dst->registry} = @{$src->registry};
549 754
551 756
552 %{$dst->{_attachment}} = %{$src->{_attachment}} 757 %{$dst->{_attachment}} = %{$src->{_attachment}}
553 if exists $src->{_attachment}; 758 if exists $src->{_attachment};
554 }, 759 },
555); 760);
761
762sub object_freezer_save {
763 my ($filename, $rdata, $objs) = @_;
764
765 sync_job {
766 if (length $$rdata) {
767 warn sprintf "saving %s (%d,%d)\n",
768 $filename, length $$rdata, scalar @$objs;
769
770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771 chmod SAVE_MODE, $fh;
772 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773 aio_fsync $fh;
774 close $fh;
775
776 if (@$objs) {
777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778 chmod SAVE_MODE, $fh;
779 my $data = Storable::nfreeze { version => 1, objs => $objs };
780 aio_write $fh, 0, (length $data), $data, 0;
781 aio_fsync $fh;
782 close $fh;
783 aio_rename "$filename.pst~", "$filename.pst";
784 }
785 } else {
786 aio_unlink "$filename.pst";
787 }
788
789 aio_rename "$filename~", $filename;
790 } else {
791 warn "FATAL: $filename~: $!\n";
792 }
793 } else {
794 aio_unlink $filename;
795 aio_unlink "$filename.pst";
796 }
797 }
798}
799
800sub object_freezer_as_string {
801 my ($rdata, $objs) = @_;
802
803 use Data::Dumper;
804
805 $$rdata . Dumper $objs
806}
807
808sub object_thawer_load {
809 my ($filename) = @_;
810
811 my ($data, $av);
812
813 (aio_load $filename, $data) >= 0
814 or return;
815
816 unless (aio_stat "$filename.pst") {
817 (aio_load "$filename.pst", $av) >= 0
818 or return;
819 $av = eval { (Storable::thaw $av)->{objs} };
820 }
821
822 return ($data, $av);
823}
556 824
557############################################################################# 825#############################################################################
558# command handling &c 826# command handling &c
559 827
560=item cf::register_command $name => \&callback($ob,$args); 828=item cf::register_command $name => \&callback($ob,$args);
780 $self->send ("ext " . to_json \%msg); 1048 $self->send ("ext " . to_json \%msg);
781} 1049}
782 1050
783=back 1051=back
784 1052
1053
1054=head3 cf::map
1055
1056=over 4
1057
1058=cut
1059
1060package cf::map;
1061
1062use Fcntl;
1063use Coro::AIO;
1064
1065our $MAX_RESET = 7200;
1066our $DEFAULT_RESET = 3600;
1067
1068sub generate_random_map {
1069 my ($path, $rmp) = @_;
1070
1071 # mit "rum" bekleckern, nicht
1072 cf::map::_create_random_map
1073 $path,
1074 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077 $rmp->{exit_on_final_map},
1078 $rmp->{xsize}, $rmp->{ysize},
1079 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084 (cf::region::find $rmp->{region})
1085}
1086
1087# and all this just because we cannot iterate over
1088# all maps in C++...
1089sub change_all_map_light {
1090 my ($change) = @_;
1091
1092 $_->change_map_light ($change) for values %cf::MAP;
1093}
1094
1095sub try_load_header($) {
1096 my ($path) = @_;
1097
1098 utf8::encode $path;
1099 aio_open $path, O_RDONLY, 0
1100 or return;
1101
1102 my $map = cf::map::new
1103 or return;
1104
1105 $map->load_header ($path)
1106 or return;
1107
1108 $map->{load_path} = $path;
1109
1110 $map
1111}
1112
1113sub find_map {
1114 my ($path, $origin) = @_;
1115
1116 #warn "find_map<$path,$origin>\n";#d#
1117
1118 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string;
1120
1121 $cf::MAP{$key} || do {
1122 # do it the slow way
1123 my $map = try_load_header $path->save_path;
1124
1125 if ($map) {
1126 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else {
1130 if (my $rmp = $path->random_map_params) {
1131 $map = generate_random_map $key, $rmp;
1132 } else {
1133 $map = try_load_header $path->load_path;
1134 }
1135
1136 $map or return;
1137
1138 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME;
1140 $map->instantiate;
1141
1142 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel};
1144 }
1145
1146 $map->path ($key);
1147 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME);
1149
1150 if ($map->should_reset) {
1151 $map->reset;
1152 $map = find_map $path;
1153 }
1154
1155 $cf::MAP{$key} = $map
1156 }
1157}
1158
1159sub load {
1160 my ($self) = @_;
1161
1162 return if $self->in_memory != cf::MAP_SWAPPED;
1163
1164 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167
1168 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1)
1170 or return;
1171
1172 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173 if delete $self->{load_original};
1174
1175 if (my $uniq = $path->uniq_path) {
1176 utf8::encode $uniq;
1177 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0);
1180 }
1181 }
1182
1183 # now do the right thing for maps
1184 $self->link_multipart_objects;
1185
1186 if ($self->{path}->is_style_map) {
1187 $self->{deny_save} = 1;
1188 $self->{deny_reset} = 1;
1189 } else {
1190 $self->fix_auto_apply;
1191 $self->decay_objects;
1192 $self->update_buttons;
1193 $self->set_darkness_map;
1194 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty;
1196 $self->activate;
1197 }
1198
1199 $self->in_memory (cf::MAP_IN_MEMORY);
1200}
1201
1202sub load_map_sync {
1203 my ($path, $origin) = @_;
1204
1205 #warn "load_map_sync<$path, $origin>\n";#d#
1206
1207 cf::sync_job {
1208 my $map = cf::map::find_map $path, $origin
1209 or return;
1210 $map->load;
1211 $map
1212 }
1213}
1214
1215sub save {
1216 my ($self) = @_;
1217
1218 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224
1225 $self->{load_path} = $save;
1226
1227 return if $self->{deny_save};
1228
1229 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES);
1232 } else {
1233 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234 }
1235}
1236
1237sub swap_out {
1238 my ($self) = @_;
1239
1240 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save};
1243
1244 $self->save;
1245 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED);
1247}
1248
1249sub reset_at {
1250 my ($self) = @_;
1251
1252 # TODO: safety, remove and allow resettable per-player maps
1253 return 1e99 if $self->{path}{user_rel};
1254 return 1e99 if $self->{deny_reset};
1255
1256 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258
1259 $time + $to
1260}
1261
1262sub should_reset {
1263 my ($self) = @_;
1264
1265 $self->reset_at <= $cf::RUNTIME
1266}
1267
1268sub unlink_save {
1269 my ($self) = @_;
1270
1271 utf8::encode (my $save = $self->{path}->save_path);
1272 aioreq_pri 3; IO::AIO::aio_unlink $save;
1273 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274}
1275
1276sub rename {
1277 my ($self, $new_path) = @_;
1278
1279 $self->unlink_save;
1280
1281 delete $cf::MAP{$self->path};
1282 $self->{path} = new cf::path $new_path;
1283 $self->path ($self->{path}->as_string);
1284 $cf::MAP{$self->path} = $self;
1285
1286 $self->save;
1287}
1288
1289sub reset {
1290 my ($self) = @_;
1291
1292 return if $self->players;
1293 return if $self->{path}{user_rel};#d#
1294
1295 warn "resetting map ", $self->path;#d#
1296
1297 delete $cf::MAP{$self->path};
1298
1299 $_->clear_links_to ($self) for values %cf::MAP;
1300
1301 $self->unlink_save;
1302 $self->destroy;
1303}
1304
1305my $nuke_counter = "aaaa";
1306
1307sub nuke {
1308 my ($self) = @_;
1309
1310 $self->{deny_save} = 1;
1311 $self->reset_timeout (1);
1312 $self->rename ("{nuke}/" . ($nuke_counter++));
1313 $self->reset; # polite request, might not happen
1314}
1315
1316sub customise_for {
1317 my ($map, $ob) = @_;
1318
1319 if ($map->per_player) {
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
1321 }
1322
1323 $map
1324}
1325
1326sub emergency_save {
1327 local $cf::FREEZE = 1;
1328
1329 warn "enter emergency map save\n";
1330
1331 cf::sync_job {
1332 warn "begin emergency map save\n";
1333 $_->save for values %cf::MAP;
1334 };
1335
1336 warn "end emergency map save\n";
1337}
1338
1339package cf;
1340
1341=back
1342
1343
785=head3 cf::object::player 1344=head3 cf::object::player
786 1345
787=over 4 1346=over 4
788 1347
789=item $player_object->reply ($npc, $msg[, $flags]) 1348=item $player_object->reply ($npc, $msg[, $flags])
822 1381
823 $self->flag (cf::FLAG_WIZ) || 1382 $self->flag (cf::FLAG_WIZ) ||
824 (ref $cf::CFG{"may_$access"} 1383 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 1385 : $cf::CFG{"may_$access"})
1386}
1387
1388=item $player_object->enter_link
1389
1390Freezes the player and moves him/her to a special map (C<{link}>).
1391
1392The player should be reaosnably safe there for short amounts of time. You
1393I<MUST> call C<leave_link> as soon as possible, though.
1394
1395=item $player_object->leave_link ($map, $x, $y)
1396
1397Moves the player out of the specila link map onto the given map. If the
1398map is not valid (or omitted), the player will be moved back to the
1399location he/she was before the call to C<enter_link>, or, if that fails,
1400to the emergency map position.
1401
1402Might block.
1403
1404=cut
1405
1406sub cf::object::player::enter_link {
1407 my ($self) = @_;
1408
1409 return if $self->map == $LINK_MAP;
1410
1411 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1412 if $self->map;
1413
1414 $self->enter_map ($LINK_MAP, 20, 20);
1415 $self->deactivate_recursive;
1416}
1417
1418sub cf::object::player::leave_link {
1419 my ($self, $map, $x, $y) = @_;
1420
1421 my $link_pos = delete $self->{_link_pos};
1422
1423 unless ($map) {
1424 # restore original map position
1425 ($map, $x, $y) = @{ $link_pos || [] };
1426 $map = cf::map::find_map $map;
1427
1428 unless ($map) {
1429 ($map, $x, $y) = @$EMERGENCY_POSITION;
1430 $map = cf::map::find_map $map
1431 or die "FATAL: cannot load emergency map\n";
1432 }
1433 }
1434
1435 ($x, $y) = (-1, -1)
1436 unless (defined $x) && (defined $y);
1437
1438 # use -1 or undef as default coordinates, not 0, 0
1439 ($x, $y) = ($map->enter_x, $map->enter_y)
1440 if $x <=0 && $y <= 0;
1441
1442 $map->load;
1443
1444 $self->activate_recursive;
1445 $self->enter_map ($map, $x, $y);
1446}
1447
1448=item $player_object->goto_map ($map, $x, $y)
1449
1450=cut
1451
1452sub cf::object::player::goto_map {
1453 my ($self, $path, $x, $y) = @_;
1454
1455 $self->enter_link;
1456
1457 (Coro::async {
1458 $path = new cf::path $path;
1459
1460 my $map = cf::map::find_map $path->as_string;
1461 $map = $map->customise_for ($self) if $map;
1462
1463 warn "entering ", $map->path, " at ($x, $y)\n"
1464 if $map;
1465
1466 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1467
1468 $self->leave_link ($map, $x, $y);
1469 })->prio (1);
1470}
1471
1472=item $player_object->enter_exit ($exit_object)
1473
1474=cut
1475
1476sub parse_random_map_params {
1477 my ($spec) = @_;
1478
1479 my $rmp = { # defaults
1480 xsize => 10,
1481 ysize => 10,
1482 };
1483
1484 for (split /\n/, $spec) {
1485 my ($k, $v) = split /\s+/, $_, 2;
1486
1487 $rmp->{lc $k} = $v if (length $k) && (length $v);
1488 }
1489
1490 $rmp
1491}
1492
1493sub prepare_random_map {
1494 my ($exit) = @_;
1495
1496 # all this does is basically replace the /! path by
1497 # a new random map path (?random/...) with a seed
1498 # that depends on the exit object
1499
1500 my $rmp = parse_random_map_params $exit->msg;
1501
1502 if ($exit->map) {
1503 $rmp->{region} = $exit->map->region_name;
1504 $rmp->{origin_map} = $exit->map->path;
1505 $rmp->{origin_x} = $exit->x;
1506 $rmp->{origin_y} = $exit->y;
1507 }
1508
1509 $rmp->{random_seed} ||= $exit->random_seed;
1510
1511 my $data = cf::to_json $rmp;
1512 my $md5 = Digest::MD5::md5_hex $data;
1513
1514 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1515 aio_write $fh, 0, (length $data), $data, 0;
1516
1517 $exit->slaying ("?random/$md5");
1518 $exit->msg (undef);
1519 }
1520}
1521
1522sub cf::object::player::enter_exit {
1523 my ($self, $exit) = @_;
1524
1525 return unless $self->type == cf::PLAYER;
1526
1527 $self->enter_link;
1528
1529 (Coro::async {
1530 unless (eval {
1531
1532 prepare_random_map $exit
1533 if $exit->slaying eq "/!";
1534
1535 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1536 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1537
1538 1;
1539 }) {
1540 $self->message ("Something went wrong deep within the crossfire server. "
1541 . "I'll try to bring you back to the map you were before. "
1542 . "Please report this to the dungeon master",
1543 cf::NDI_UNIQUE | cf::NDI_RED);
1544
1545 warn "ERROR in enter_exit: $@";
1546 $self->leave_link;
1547 }
1548 })->prio (1);
827} 1549}
828 1550
829=head3 cf::client 1551=head3 cf::client
830 1552
831=over 4 1553=over 4
908 my $coro; $coro = async { 1630 my $coro; $coro = async {
909 eval { 1631 eval {
910 $cb->(); 1632 $cb->();
911 }; 1633 };
912 warn $@ if $@; 1634 warn $@ if $@;
1635 };
1636
1637 $coro->on_destroy (sub {
913 delete $self->{_coro}{$coro+0}; 1638 delete $self->{_coro}{$coro+0};
914 }; 1639 });
915 1640
916 $self->{_coro}{$coro+0} = $coro; 1641 $self->{_coro}{$coro+0} = $coro;
1642
1643 $coro
917} 1644}
918 1645
919cf::client->attach ( 1646cf::client->attach (
920 on_destroy => sub { 1647 on_destroy => sub {
921 my ($ns) = @_; 1648 my ($ns) = @_;
1153 local $/; 1880 local $/;
1154 *CFG = YAML::Syck::Load <$fh>; 1881 *CFG = YAML::Syck::Load <$fh>;
1155} 1882}
1156 1883
1157sub main { 1884sub main {
1885 # we must not ever block the main coroutine
1886 local $Coro::idle = sub {
1887 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1888 (Coro::unblock_sub {
1889 Event::one_event;
1890 })->();
1891 };
1892
1158 cfg_load; 1893 cfg_load;
1159 db_load; 1894 db_load;
1160 load_extensions; 1895 load_extensions;
1161 Event::loop; 1896 Event::loop;
1162} 1897}
1163 1898
1164############################################################################# 1899#############################################################################
1165# initialisation 1900# initialisation
1166 1901
1167sub _perl_reload(&) { 1902sub reload() {
1168 my ($msg) = @_; 1903 # can/must only be called in main
1904 if ($Coro::current != $Coro::main) {
1905 warn "can only reload from main coroutine\n";
1906 return;
1907 }
1169 1908
1170 $msg->("reloading..."); 1909 warn "reloading...";
1910
1911 local $FREEZE = 1;
1912 cf::emergency_save;
1171 1913
1172 eval { 1914 eval {
1915 # if anything goes wrong in here, we should simply crash as we already saved
1916
1173 # cancel all watchers 1917 # cancel all watchers
1174 for (Event::all_watchers) { 1918 for (Event::all_watchers) {
1175 $_->cancel if $_->data & WF_AUTOCANCEL; 1919 $_->cancel if $_->data & WF_AUTOCANCEL;
1176 } 1920 }
1177 1921
1922 # cancel all extension coros
1923 $_->cancel for values %EXT_CORO;
1924 %EXT_CORO = ();
1925
1178 # unload all extensions 1926 # unload all extensions
1179 for (@exts) { 1927 for (@exts) {
1180 $msg->("unloading <$_>"); 1928 warn "unloading <$_>";
1181 unload_extension $_; 1929 unload_extension $_;
1182 } 1930 }
1183 1931
1184 # unload all modules loaded from $LIBDIR 1932 # unload all modules loaded from $LIBDIR
1185 while (my ($k, $v) = each %INC) { 1933 while (my ($k, $v) = each %INC) {
1186 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 1934 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187 1935
1188 $msg->("removing <$k>"); 1936 warn "removing <$k>";
1189 delete $INC{$k}; 1937 delete $INC{$k};
1190 1938
1191 $k =~ s/\.pm$//; 1939 $k =~ s/\.pm$//;
1192 $k =~ s/\//::/g; 1940 $k =~ s/\//::/g;
1193 1941
1198 Symbol::delete_package $k; 1946 Symbol::delete_package $k;
1199 } 1947 }
1200 1948
1201 # sync database to disk 1949 # sync database to disk
1202 cf::db_sync; 1950 cf::db_sync;
1951 IO::AIO::flush;
1203 1952
1204 # get rid of safe::, as good as possible 1953 # get rid of safe::, as good as possible
1205 Symbol::delete_package "safe::$_" 1954 Symbol::delete_package "safe::$_"
1206 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); 1955 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207 1956
1208 # remove register_script_function callbacks 1957 # remove register_script_function callbacks
1209 # TODO 1958 # TODO
1210 1959
1211 # unload cf.pm "a bit" 1960 # unload cf.pm "a bit"
1214 # don't, removes xs symbols, too, 1963 # don't, removes xs symbols, too,
1215 # and global variables created in xs 1964 # and global variables created in xs
1216 #Symbol::delete_package __PACKAGE__; 1965 #Symbol::delete_package __PACKAGE__;
1217 1966
1218 # reload cf.pm 1967 # reload cf.pm
1219 $msg->("reloading cf.pm"); 1968 warn "reloading cf.pm";
1220 require cf; 1969 require cf;
1970 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221 1971
1222 # load config and database again 1972 # load config and database again
1223 cf::cfg_load; 1973 cf::cfg_load;
1224 cf::db_load; 1974 cf::db_load;
1225 1975
1226 # load extensions 1976 # load extensions
1227 $msg->("load extensions"); 1977 warn "load extensions";
1228 cf::load_extensions; 1978 cf::load_extensions;
1229 1979
1230 # reattach attachments to objects 1980 # reattach attachments to objects
1231 $msg->("reattach"); 1981 warn "reattach";
1232 _global_reattach; 1982 _global_reattach;
1233 }; 1983 };
1234 $msg->($@) if $@;
1235 1984
1236 $msg->("reloaded"); 1985 if ($@) {
1986 warn $@;
1987 warn "error while reloading, exiting.";
1988 exit 1;
1989 }
1990
1991 warn "reloaded successfully";
1237}; 1992};
1238 1993
1239sub perl_reload() { 1994#############################################################################
1240 _perl_reload { 1995
1241 warn $_[0]; 1996unless ($LINK_MAP) {
1242 print "$_[0]\n"; 1997 $LINK_MAP = cf::map::new;
1243 }; 1998
1999 $LINK_MAP->width (41);
2000 $LINK_MAP->height (41);
2001 $LINK_MAP->alloc;
2002 $LINK_MAP->path ("{link}");
2003 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2004 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2005
2006 # dirty hack because... archetypes are not yet loaded
2007 Event->timer (
2008 after => 2,
2009 cb => sub {
2010 $_[0]->w->cancel;
2011
2012 # provide some exits "home"
2013 my $exit = cf::object::new "exit";
2014
2015 $exit->slaying ($EMERGENCY_POSITION->[0]);
2016 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2017 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2018
2019 $LINK_MAP->insert ($exit->clone, 19, 19);
2020 $LINK_MAP->insert ($exit->clone, 19, 20);
2021 $LINK_MAP->insert ($exit->clone, 19, 21);
2022 $LINK_MAP->insert ($exit->clone, 20, 19);
2023 $LINK_MAP->insert ($exit->clone, 20, 21);
2024 $LINK_MAP->insert ($exit->clone, 21, 19);
2025 $LINK_MAP->insert ($exit->clone, 21, 20);
2026 $LINK_MAP->insert ($exit->clone, 21, 21);
2027
2028 $exit->destroy;
2029 });
2030
2031 $LINK_MAP->{deny_save} = 1;
2032 $LINK_MAP->{deny_reset} = 1;
2033
2034 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1244} 2035}
1245 2036
1246register "<global>", __PACKAGE__; 2037register "<global>", __PACKAGE__;
1247 2038
1248register_command "perl-reload" => sub { 2039register_command "reload" => sub {
1249 my ($who, $arg) = @_; 2040 my ($who, $arg) = @_;
1250 2041
1251 if ($who->flag (FLAG_WIZ)) { 2042 if ($who->flag (FLAG_WIZ)) {
1252 _perl_reload { 2043 $who->message ("start of reload.");
1253 warn $_[0]; 2044 reload;
1254 $who->message ($_[0]); 2045 $who->message ("end of reload.");
1255 };
1256 } 2046 }
1257}; 2047};
1258 2048
1259unshift @INC, $LIBDIR; 2049unshift @INC, $LIBDIR;
1260 2050
1261$TICK_WATCHER = Event->timer ( 2051$TICK_WATCHER = Event->timer (
2052 reentrant => 0,
1262 prio => 0, 2053 prio => 0,
1263 at => $NEXT_TICK || 1, 2054 at => $NEXT_TICK || $TICK,
1264 data => WF_AUTOCANCEL, 2055 data => WF_AUTOCANCEL,
1265 cb => sub { 2056 cb => sub {
2057 unless ($FREEZE) {
1266 cf::server_tick; # one server iteration 2058 cf::server_tick; # one server iteration
2059 $RUNTIME += $TICK;
2060 }
1267 2061
1268 my $NOW = Event::time;
1269 $NEXT_TICK += $TICK; 2062 $NEXT_TICK += $TICK;
1270 2063
1271 # if we are delayed by four ticks or more, skip them all 2064 # if we are delayed by four ticks or more, skip them all
1272 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; 2065 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273 2066
1274 $TICK_WATCHER->at ($NEXT_TICK); 2067 $TICK_WATCHER->at ($NEXT_TICK);
1275 $TICK_WATCHER->start; 2068 $TICK_WATCHER->start;
1276 }, 2069 },
1277); 2070);
1278 2071
1279IO::AIO::max_poll_time $TICK * 0.2; 2072IO::AIO::max_poll_time $TICK * 0.2;
1280 2073
2074Event->io (
1281Event->io (fd => IO::AIO::poll_fileno, 2075 fd => IO::AIO::poll_fileno,
1282 poll => 'r', 2076 poll => 'r',
1283 prio => 5, 2077 prio => 5,
1284 data => WF_AUTOCANCEL, 2078 data => WF_AUTOCANCEL,
1285 cb => \&IO::AIO::poll_cb); 2079 cb => \&IO::AIO::poll_cb,
2080);
2081
2082Event->timer (
2083 data => WF_AUTOCANCEL,
2084 after => 0,
2085 interval => 10,
2086 cb => sub {
2087 (Coro::unblock_sub {
2088 write_runtime
2089 or warn "ERROR: unable to write runtime file: $!";
2090 })->();
2091 },
2092);
1286 2093
12871 20941
1288 2095

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