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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.99 by root, Sat Dec 23 05:25:35 2006 UTC vs.
Revision 1.111 by root, Mon Jan 1 12:28:47 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;
18use Coro::AIO;
18 19
20use Digest::MD5;
21use Fcntl;
19use IO::AIO 2.3; 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 my $busy = 1;
203 my @res;
204
205 my $coro = Coro::async {
206 @res = eval { $job->() };
207 warn $@ if $@;
208 undef $busy;
209 };
210
211 if ($Coro::current == $Coro::main) {
212 # TODO: use suspend/resume instead
213 local $FREEZE = 1;
214 $coro->prio (Coro::PRIO_MAX);
215 while ($busy) {
216 Coro::cede_notself;
217 Event::one_event unless Coro::nready;
218 }
219 } else {
220 $coro->join;
221 }
222
223 wantarray ? @res : $res[0]
224}
225
226=item $coro = cf::coro { BLOCK }
227
228Creates and returns a new coro. This coro is automcatially being canceled
229when the extension calling this is being unloaded.
230
231=cut
232
233sub coro(&) {
234 my $cb = shift;
235
236 my $coro; $coro = async {
237 eval {
238 $cb->();
239 };
240 warn $@ if $@;
241 };
242
243 $coro->on_destroy (sub {
244 delete $EXT_CORO{$coro+0};
245 });
246 $EXT_CORO{$coro+0} = $coro;
247
248 $coro
249}
250
251sub write_runtime {
252 my $runtime = cf::localdir . "/runtime";
253
254 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255 or return;
256
257 my $value = $cf::RUNTIME;
258 (aio_write $fh, 0, (length $value), $value, 0) <= 0
259 and return;
260
261 aio_fsync $fh
262 and return;
263
264 close $fh
265 or return;
266
267 aio_rename "$runtime~", $runtime
268 and return;
269
270 1
271}
272
146=back 273=back
147 274
148=cut 275=cut
276
277#############################################################################
278
279package cf::path;
280
281sub new {
282 my ($class, $path, $base) = @_;
283
284 $path = $path->as_string if ref $path;
285
286 my $self = bless { }, $class;
287
288 if ($path =~ s{^\?random/}{}) {
289 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290 $self->{random} = cf::from_json $data;
291 } else {
292 if ($path =~ s{^~([^/]+)?}{}) {
293 $self->{user_rel} = 1;
294
295 if (defined $1) {
296 $self->{user} = $1;
297 } elsif ($base =~ m{^~([^/]+)/}) {
298 $self->{user} = $1;
299 } else {
300 warn "cannot resolve user-relative path without user <$path,$base>\n";
301 }
302 } elsif ($path =~ /^\//) {
303 # already absolute
304 } else {
305 $base =~ s{[^/]+/?$}{};
306 return $class->new ("$base/$path");
307 }
308
309 for ($path) {
310 redo if s{/\.?/}{/};
311 redo if s{/[^/]+/\.\./}{/};
312 }
313 }
314
315 $self->{path} = $path;
316
317 $self
318}
319
320# the name / primary key / in-game path
321sub as_string {
322 my ($self) = @_;
323
324 $self->{user_rel} ? "~$self->{user}$self->{path}"
325 : $self->{random} ? "?random/$self->{path}"
326 : $self->{path}
327}
328
329# the displayed name, this is a one way mapping
330sub visible_name {
331 my ($self) = @_;
332
333# if (my $rmp = $self->{random}) {
334# # todo: be more intelligent about this
335# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336# } else {
337 $self->as_string
338# }
339}
340
341# escape the /'s in the path
342sub _escaped_path {
343 # ∕ is U+2215
344 (my $path = $_[0]{path}) =~ s/\//∕/g;
345 $path
346}
347
348# the original (read-only) location
349sub load_path {
350 my ($self) = @_;
351
352 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353}
354
355# the temporary/swap location
356sub save_path {
357 my ($self) = @_;
358
359 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362}
363
364# the unique path, might be eq to save_path
365sub uniq_path {
366 my ($self) = @_;
367
368 $self->{user_rel} || $self->{random}
369 ? undef
370 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371}
372
373# return random map parameters, or undef
374sub random_map_params {
375 my ($self) = @_;
376
377 $self->{random}
378}
379
380# this is somewhat ugly, but style maps do need special treatment
381sub is_style_map {
382 $_[0]{path} =~ m{^/styles/}
383}
384
385package cf;
149 386
150############################################################################# 387#############################################################################
151 388
152=head2 ATTACHABLE OBJECTS 389=head2 ATTACHABLE OBJECTS
153 390
269exception. 506exception.
270 507
271=cut 508=cut
272 509
273# the following variables are defined in .xs and must not be re-created 510# the following variables are defined in .xs and must not be re-created
274our @CB_GLOBAL = (); # registry for all global events 511our @CB_GLOBAL = (); # registry for all global events
512our @CB_ATTACHABLE = (); # registry for all attachables
275our @CB_OBJECT = (); # all objects (should not be used except in emergency) 513our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276our @CB_PLAYER = (); 514our @CB_PLAYER = ();
277our @CB_CLIENT = (); 515our @CB_CLIENT = ();
278our @CB_TYPE = (); # registry for type (cf-object class) based events 516our @CB_TYPE = (); # registry for type (cf-object class) based events
279our @CB_MAP = (); 517our @CB_MAP = ();
280 518
281my %attachment; 519my %attachment;
282 520
283sub _attach_cb($$$$) { 521sub _attach_cb($$$$) {
284 my ($registry, $event, $prio, $cb) = @_; 522 my ($registry, $event, $prio, $cb) = @_;
289 527
290 @{$registry->[$event]} = sort 528 @{$registry->[$event]} = sort
291 { $a->[0] cmp $b->[0] } 529 { $a->[0] cmp $b->[0] }
292 @{$registry->[$event] || []}, $cb; 530 @{$registry->[$event] || []}, $cb;
293} 531}
532
533# hack
534my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294 535
295# attach handles attaching event callbacks 536# attach handles attaching event callbacks
296# the only thing the caller has to do is pass the correct 537# the only thing the caller has to do is pass the correct
297# registry (== where the callback attaches to). 538# registry (== where the callback attaches to).
298sub _attach { 539sub _attach {
300 541
301 my $object_type; 542 my $object_type;
302 my $prio = 0; 543 my $prio = 0;
303 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; 544 my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304 545
546 #TODO: get rid of this hack
547 if ($attachable_klass{$klass}) {
548 %cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
549 }
550
305 while (@arg) { 551 while (@arg) {
306 my $type = shift @arg; 552 my $type = shift @arg;
307 553
308 if ($type eq "prio") { 554 if ($type eq "prio") {
309 $prio = shift @arg; 555 $prio = shift @arg;
384 my ($obj, $name) = @_; 630 my ($obj, $name) = @_;
385 631
386 exists $obj->{_attachment}{$name} 632 exists $obj->{_attachment}{$name}
387} 633}
388 634
389for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) { 635for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390 eval "#line " . __LINE__ . " 'cf.pm' 636 eval "#line " . __LINE__ . " 'cf.pm'
391 sub cf::\L$klass\E::_attach_registry { 637 sub cf::\L$klass\E::_attach_registry {
392 (\\\@CB_$klass, KLASS_$klass) 638 (\\\@CB_$klass, KLASS_$klass)
393 } 639 }
394 640
447=cut 693=cut
448 694
449############################################################################# 695#############################################################################
450# object support 696# object support
451 697
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 { 698sub reattach {
699 # basically do the same as instantiate, without calling instantiate
466 my ($obj) = @_; 700 my ($obj) = @_;
701
467 my $registry = $obj->registry; 702 my $registry = $obj->registry;
468 703
469 @$registry = (); 704 @$registry = ();
470 705
471 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; 706 delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480 warn "object uses attachment '$name' that is not available, postponing.\n"; 715 warn "object uses attachment '$name' that is not available, postponing.\n";
481 } 716 }
482 } 717 }
483} 718}
484 719
485sub object_freezer_save { 720cf::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 $$rdata . Dumper $objs
522}
523
524sub object_thawer_load {
525 my ($filename) = @_;
526
527 local $/;
528
529 my $av;
530
531 #TODO: use sysread etc.
532 if (open my $data, "<:raw:perlio", $filename) {
533 $data = <$data>;
534 if (open my $pst, "<:raw:perlio", "$filename.pst") {
535 $av = eval { (Storable::thaw <$pst>)->{objs} };
536 }
537 return ($data, $av);
538 }
539
540 ()
541}
542
543cf::object->attach (
544 prio => -1000000, 721 prio => -1000000,
722 on_instantiate => sub {
723 my ($obj, $data) = @_;
724
725 $data = from_json $data;
726
727 for (@$data) {
728 my ($name, $args) = @$_;
729
730 $obj->attach ($name, %{$args || {} });
731 }
732 },
733 on_reattach => \&reattach,
545 on_clone => sub { 734 on_clone => sub {
546 my ($src, $dst) = @_; 735 my ($src, $dst) = @_;
547 736
548 @{$dst->registry} = @{$src->registry}; 737 @{$dst->registry} = @{$src->registry};
549 738
551 740
552 %{$dst->{_attachment}} = %{$src->{_attachment}} 741 %{$dst->{_attachment}} = %{$src->{_attachment}}
553 if exists $src->{_attachment}; 742 if exists $src->{_attachment};
554 }, 743 },
555); 744);
745
746sub object_freezer_save {
747 my ($filename, $rdata, $objs) = @_;
748
749 sync_job {
750 if (length $$rdata) {
751 warn sprintf "saving %s (%d,%d)\n",
752 $filename, length $$rdata, scalar @$objs;
753
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh;
758 close $fh;
759
760 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh;
766 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst";
768 }
769 } else {
770 aio_unlink "$filename.pst";
771 }
772
773 aio_rename "$filename~", $filename;
774 } else {
775 warn "FATAL: $filename~: $!\n";
776 }
777 } else {
778 aio_unlink $filename;
779 aio_unlink "$filename.pst";
780 }
781 }
782}
783
784sub object_freezer_as_string {
785 my ($rdata, $objs) = @_;
786
787 use Data::Dumper;
788
789 $$rdata . Dumper $objs
790}
791
792sub object_thawer_load {
793 my ($filename) = @_;
794
795 my ($data, $av);
796
797 (aio_load $filename, $data) >= 0
798 or return;
799
800 unless (aio_stat "$filename.pst") {
801 (aio_load "$filename.pst", $av) >= 0
802 or return;
803 $av = eval { (Storable::thaw <$av>)->{objs} };
804 }
805
806 return ($data, $av);
807}
556 808
557############################################################################# 809#############################################################################
558# command handling &c 810# command handling &c
559 811
560=item cf::register_command $name => \&callback($ob,$args); 812=item cf::register_command $name => \&callback($ob,$args);
780 $self->send ("ext " . to_json \%msg); 1032 $self->send ("ext " . to_json \%msg);
781} 1033}
782 1034
783=back 1035=back
784 1036
1037
1038=head3 cf::map
1039
1040=over 4
1041
1042=cut
1043
1044package cf::map;
1045
1046use Fcntl;
1047use Coro::AIO;
1048
1049our $MAX_RESET = 7200;
1050our $DEFAULT_RESET = 3600;
1051$MAX_RESET = 10;#d#
1052$DEFAULT_RESET = 10;#d#
1053
1054sub generate_random_map {
1055 my ($path, $rmp) = @_;
1056
1057 # mit "rum" bekleckern, nicht
1058 cf::map::_create_random_map
1059 $path,
1060 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063 $rmp->{exit_on_final_map},
1064 $rmp->{xsize}, $rmp->{ysize},
1065 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070 (cf::region::find $rmp->{region})
1071}
1072
1073# and all this just because we cannot iterate over
1074# all maps in C++...
1075sub change_all_map_light {
1076 my ($change) = @_;
1077
1078 $_->change_map_light ($change) for values %cf::MAP;
1079}
1080
1081sub try_load_header($) {
1082 my ($path) = @_;
1083
1084 utf8::encode $path;
1085 aio_open $path, O_RDONLY, 0
1086 or return;
1087
1088 my $map = cf::map::new
1089 or return;
1090
1091 $map->load_header ($path)
1092 or return;
1093
1094 $map->{load_path} = $path;
1095 use Data::Dumper; warn Dumper $map;#d#
1096
1097 $map
1098}
1099
1100sub find_map {
1101 my ($path, $origin) = @_;
1102
1103 #warn "find_map<$path,$origin>\n";#d#
1104
1105 $path = ref $path ? $path : new cf::path $path, $origin && $origin->path;
1106 my $key = $path->as_string;
1107
1108 $cf::MAP{$key} || do {
1109 # do it the slow way
1110 my $map = try_load_header $path->save_path;
1111
1112 if ($map) {
1113 # safety
1114 $map->{instantiate_time} = $cf::RUNTIME
1115 if $map->{instantiate_time} > $cf::RUNTIME;
1116 } else {
1117 if (my $rmp = $path->random_map_params) {
1118 $map = generate_random_map $key, $rmp;
1119 } else {
1120 $map = try_load_header $path->load_path;
1121 }
1122
1123 $map or return;
1124
1125 $map->{load_original} = 1;
1126 $map->{instantiate_time} = $cf::RUNTIME;
1127 $map->instantiate;
1128
1129 # per-player maps become, after loading, normal maps
1130 $map->per_player (0) if $path->{user_rel};
1131 }
1132
1133 $map->path ($key);
1134 $map->{path} = $path;
1135 $map->last_access ($cf::RUNTIME);
1136
1137 $map->reset if $map->should_reset;
1138
1139 $cf::MAP{$key} = $map
1140 }
1141}
1142
1143sub load {
1144 my ($self) = @_;
1145
1146 return if $self->in_memory != cf::MAP_SWAPPED;
1147
1148 $self->in_memory (cf::MAP_LOADING);
1149
1150 my $path = $self->{path};
1151
1152 $self->alloc;
1153 $self->load_objects ($self->{load_path}, 1)
1154 or return;
1155
1156 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};
1157
1158 if (my $uniq = $path->uniq_path) {
1159 utf8::encode $uniq;
1160 if (aio_open $uniq, O_RDONLY, 0) {
1161 $self->clear_unique_items;
1162 $self->load_objects ($uniq, 0);
1163 }
1164 }
1165
1166 # now do the right thing for maps
1167 $self->link_multipart_objects;
1168
1169 if ($self->{path}->is_style_map) {
1170 $self->{deny_save} = 1;
1171 $self->{deny_reset} = 1;
1172 } else {
1173 $self->fix_auto_apply;
1174 $self->decay_objects;
1175 $self->update_buttons;
1176 $self->set_darkness_map;
1177 $self->difficulty ($self->estimate_difficulty)
1178 unless $self->difficulty;
1179 $self->activate;
1180 }
1181
1182 $self->in_memory (cf::MAP_IN_MEMORY);
1183}
1184
1185sub load_map_sync {
1186 my ($path, $origin) = @_;
1187
1188 #warn "load_map_sync<$path, $origin>\n";#d#
1189
1190 cf::sync_job {
1191 my $map = cf::map::find_map $path, $origin
1192 or return;
1193 $map->load;
1194 $map
1195 }
1196}
1197
1198sub save {
1199 my ($self) = @_;
1200
1201 my $save = $self->{path}->save_path; utf8::encode $save;
1202 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203
1204 $self->{last_save} = $cf::RUNTIME;
1205
1206 return unless $self->dirty;
1207
1208 $self->{load_path} = $save;
1209
1210 return if $self->{deny_save};
1211
1212 warn "saving map ", $self->path;
1213
1214 if ($uniq) {
1215 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216 $self->save_objects ($uniq, cf::IO_UNIQUES);
1217 } else {
1218 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219 }
1220}
1221
1222sub swap_out {
1223 my ($self) = @_;
1224
1225 return if $self->players;
1226 return if $self->in_memory != cf::MAP_IN_MEMORY;
1227 return if $self->{deny_save};
1228
1229 $self->save;
1230 $self->clear;
1231 $self->in_memory (cf::MAP_SWAPPED);
1232}
1233
1234sub should_reset {
1235 my ($map) = @_;
1236
1237 # TODO: safety, remove and allow resettable per-player maps
1238 return if $map->{path}{user_rel};#d#
1239 return if $map->{deny_reset};
1240 #return unless $map->reset_timeout;
1241
1242 my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243 my $to = $map->reset_timeout || $DEFAULT_RESET;
1244 $to = $MAX_RESET if $to > $MAX_RESET;
1245
1246 $time + $to < $cf::RUNTIME
1247}
1248
1249sub unlink_save {
1250 my ($self) = @_;
1251
1252 utf8::encode (my $save = $self->{path}->save_path);
1253 aioreq_pri 3; IO::AIO::aio_unlink $save;
1254 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255}
1256
1257sub reset {
1258 my ($self) = @_;
1259
1260 return if $self->players;
1261 return if $self->{path}{user_rel};#d#
1262
1263 warn "resetting map ", $self->path;#d#
1264
1265 delete $cf::MAP{$self->path};
1266
1267 $_->clear_links_to ($self) for values %cf::MAP;
1268
1269 $self->unlink_save;
1270 $self->destroy;
1271}
1272
1273sub customise_for {
1274 my ($map, $ob) = @_;
1275
1276 if ($map->per_player) {
1277 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
1278 }
1279
1280 $map
1281}
1282
1283sub emergency_save {
1284 local $cf::FREEZE = 1;
1285
1286 warn "enter emergency map save\n";
1287
1288 cf::sync_job {
1289 warn "begin emergency map save\n";
1290 $_->save for values %cf::MAP;
1291 };
1292
1293 warn "end emergency map save\n";
1294}
1295
1296package cf;
1297
1298=back
1299
1300
785=head3 cf::object::player 1301=head3 cf::object::player
786 1302
787=over 4 1303=over 4
788 1304
789=item $player_object->reply ($npc, $msg[, $flags]) 1305=item $player_object->reply ($npc, $msg[, $flags])
822 1338
823 $self->flag (cf::FLAG_WIZ) || 1339 $self->flag (cf::FLAG_WIZ) ||
824 (ref $cf::CFG{"may_$access"} 1340 (ref $cf::CFG{"may_$access"}
825 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1341 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826 : $cf::CFG{"may_$access"}) 1342 : $cf::CFG{"may_$access"})
1343}
1344
1345sub cf::object::player::enter_link {
1346 my ($self) = @_;
1347
1348 return if $self->map == $LINK_MAP;
1349
1350 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351 if $self->map;
1352
1353 $self->enter_map ($LINK_MAP, 20, 20);
1354 $self->deactivate_recursive;
1355}
1356
1357sub cf::object::player::leave_link {
1358 my ($self, $map, $x, $y) = @_;
1359
1360 my $link_pos = delete $self->{_link_pos};
1361
1362 unless ($map) {
1363 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365 # restore original map position
1366 ($map, $x, $y) = @{ $link_pos || [] };
1367 $map = cf::map::find_map $map;
1368
1369 unless ($map) {
1370 ($map, $x, $y) = @$EMERGENCY_POSITION;
1371 $map = cf::map::find_map $map
1372 or die "FATAL: cannot load emergency map\n";
1373 }
1374 }
1375
1376 ($x, $y) = (-1, -1)
1377 unless (defined $x) && (defined $y);
1378
1379 # use -1 or undef as default coordinates, not 0, 0
1380 ($x, $y) = ($map->enter_x, $map->enter_y)
1381 if $x <=0 && $y <= 0;
1382
1383 $map->load;
1384
1385 $self->activate_recursive;
1386 $self->enter_map ($map, $x, $y);
1387}
1388
1389=item $player_object->goto_map ($map, $x, $y)
1390
1391=cut
1392
1393sub cf::object::player::goto_map {
1394 my ($self, $path, $x, $y) = @_;
1395
1396 $self->enter_link;
1397
1398 (Coro::async {
1399 $path = new cf::path $path;
1400
1401 my $map = cf::map::find_map $path->as_string;
1402 $map = $map->customise_for ($self) if $map;
1403
1404 warn "entering ", $map->path, " at ($x, $y)\n"
1405 if $map;
1406
1407 $self->leave_link ($map, $x, $y);
1408 })->prio (1);
1409}
1410
1411=item $player_object->enter_exit ($exit_object)
1412
1413=cut
1414
1415sub parse_random_map_params {
1416 my ($spec) = @_;
1417
1418 my $rmp = { # defaults
1419 xsize => 10,
1420 ysize => 10,
1421 };
1422
1423 for (split /\n/, $spec) {
1424 my ($k, $v) = split /\s+/, $_, 2;
1425
1426 $rmp->{lc $k} = $v if (length $k) && (length $v);
1427 }
1428
1429 $rmp
1430}
1431
1432sub prepare_random_map {
1433 my ($exit) = @_;
1434
1435 # all this does is basically replace the /! path by
1436 # a new random map path (?random/...) with a seed
1437 # that depends on the exit object
1438
1439 my $rmp = parse_random_map_params $exit->msg;
1440
1441 if ($exit->map) {
1442 $rmp->{region} = $exit->map->region_name;
1443 $rmp->{origin_map} = $exit->map->path;
1444 $rmp->{origin_x} = $exit->x;
1445 $rmp->{origin_y} = $exit->y;
1446 }
1447
1448 $rmp->{random_seed} ||= $exit->random_seed;
1449
1450 my $data = cf::to_json $rmp;
1451 my $md5 = Digest::MD5::md5_hex $data;
1452
1453 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
1454 aio_write $fh, 0, (length $data), $data, 0;
1455
1456 $exit->slaying ("?random/$md5");
1457 $exit->msg (undef);
1458 }
1459}
1460
1461sub cf::object::player::enter_exit {
1462 my ($self, $exit) = @_;
1463
1464 return unless $self->type == cf::PLAYER;
1465
1466 $self->enter_link;
1467
1468 (Coro::async {
1469 unless (eval {
1470
1471 prepare_random_map $exit
1472 if $exit->slaying eq "/!";
1473
1474 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476
1477 1;
1478 }) {
1479 $self->message ("Something went wrong deep within the crossfire server. "
1480 . "I'll try to bring you back to the map you were before. "
1481 . "Please report this to the dungeon master",
1482 cf::NDI_UNIQUE | cf::NDI_RED);
1483
1484 warn "ERROR in enter_exit: $@";
1485 $self->leave_link;
1486 }
1487 })->prio (1);
827} 1488}
828 1489
829=head3 cf::client 1490=head3 cf::client
830 1491
831=over 4 1492=over 4
908 my $coro; $coro = async { 1569 my $coro; $coro = async {
909 eval { 1570 eval {
910 $cb->(); 1571 $cb->();
911 }; 1572 };
912 warn $@ if $@; 1573 warn $@ if $@;
1574 };
1575
1576 $coro->on_destroy (sub {
913 delete $self->{_coro}{$coro+0}; 1577 delete $self->{_coro}{$coro+0};
914 }; 1578 });
915 1579
916 $self->{_coro}{$coro+0} = $coro; 1580 $self->{_coro}{$coro+0} = $coro;
1581
1582 $coro
917} 1583}
918 1584
919cf::client->attach ( 1585cf::client->attach (
920 on_destroy => sub { 1586 on_destroy => sub {
921 my ($ns) = @_; 1587 my ($ns) = @_;
1153 local $/; 1819 local $/;
1154 *CFG = YAML::Syck::Load <$fh>; 1820 *CFG = YAML::Syck::Load <$fh>;
1155} 1821}
1156 1822
1157sub main { 1823sub main {
1824 # we must not ever block the main coroutine
1825 local $Coro::idle = sub {
1826 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1827 (Coro::unblock_sub {
1828 Event::one_event;
1829 })->();
1830 };
1831
1158 cfg_load; 1832 cfg_load;
1159 db_load; 1833 db_load;
1160 load_extensions; 1834 load_extensions;
1161 Event::loop; 1835 Event::loop;
1162} 1836}
1163 1837
1164############################################################################# 1838#############################################################################
1165# initialisation 1839# initialisation
1166 1840
1167sub _perl_reload(&) { 1841sub reload() {
1168 my ($msg) = @_; 1842 # can/must only be called in main
1843 if ($Coro::current != $Coro::main) {
1844 warn "can only reload from main coroutine\n";
1845 return;
1846 }
1169 1847
1170 $msg->("reloading..."); 1848 warn "reloading...";
1849
1850 local $FREEZE = 1;
1851 cf::emergency_save;
1171 1852
1172 eval { 1853 eval {
1854 # if anything goes wrong in here, we should simply crash as we already saved
1855
1173 # cancel all watchers 1856 # cancel all watchers
1174 for (Event::all_watchers) { 1857 for (Event::all_watchers) {
1175 $_->cancel if $_->data & WF_AUTOCANCEL; 1858 $_->cancel if $_->data & WF_AUTOCANCEL;
1176 } 1859 }
1177 1860
1861 # cancel all extension coros
1862 $_->cancel for values %EXT_CORO;
1863 %EXT_CORO = ();
1864
1178 # unload all extensions 1865 # unload all extensions
1179 for (@exts) { 1866 for (@exts) {
1180 $msg->("unloading <$_>"); 1867 warn "unloading <$_>";
1181 unload_extension $_; 1868 unload_extension $_;
1182 } 1869 }
1183 1870
1184 # unload all modules loaded from $LIBDIR 1871 # unload all modules loaded from $LIBDIR
1185 while (my ($k, $v) = each %INC) { 1872 while (my ($k, $v) = each %INC) {
1186 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 1873 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187 1874
1188 $msg->("removing <$k>"); 1875 warn "removing <$k>";
1189 delete $INC{$k}; 1876 delete $INC{$k};
1190 1877
1191 $k =~ s/\.pm$//; 1878 $k =~ s/\.pm$//;
1192 $k =~ s/\//::/g; 1879 $k =~ s/\//::/g;
1193 1880
1198 Symbol::delete_package $k; 1885 Symbol::delete_package $k;
1199 } 1886 }
1200 1887
1201 # sync database to disk 1888 # sync database to disk
1202 cf::db_sync; 1889 cf::db_sync;
1890 IO::AIO::flush;
1203 1891
1204 # get rid of safe::, as good as possible 1892 # get rid of safe::, as good as possible
1205 Symbol::delete_package "safe::$_" 1893 Symbol::delete_package "safe::$_"
1206 for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region); 1894 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207 1895
1208 # remove register_script_function callbacks 1896 # remove register_script_function callbacks
1209 # TODO 1897 # TODO
1210 1898
1211 # unload cf.pm "a bit" 1899 # unload cf.pm "a bit"
1214 # don't, removes xs symbols, too, 1902 # don't, removes xs symbols, too,
1215 # and global variables created in xs 1903 # and global variables created in xs
1216 #Symbol::delete_package __PACKAGE__; 1904 #Symbol::delete_package __PACKAGE__;
1217 1905
1218 # reload cf.pm 1906 # reload cf.pm
1219 $msg->("reloading cf.pm"); 1907 warn "reloading cf.pm";
1220 require cf; 1908 require cf;
1909 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221 1910
1222 # load config and database again 1911 # load config and database again
1223 cf::cfg_load; 1912 cf::cfg_load;
1224 cf::db_load; 1913 cf::db_load;
1225 1914
1226 # load extensions 1915 # load extensions
1227 $msg->("load extensions"); 1916 warn "load extensions";
1228 cf::load_extensions; 1917 cf::load_extensions;
1229 1918
1230 # reattach attachments to objects 1919 # reattach attachments to objects
1231 $msg->("reattach"); 1920 warn "reattach";
1232 _global_reattach; 1921 _global_reattach;
1233 }; 1922 };
1234 $msg->($@) if $@;
1235 1923
1236 $msg->("reloaded"); 1924 if ($@) {
1925 warn $@;
1926 warn "error while reloading, exiting.";
1927 exit 1;
1928 }
1929
1930 warn "reloaded successfully";
1237}; 1931};
1238 1932
1239sub perl_reload() { 1933#############################################################################
1240 _perl_reload { 1934
1241 warn $_[0]; 1935unless ($LINK_MAP) {
1242 print "$_[0]\n"; 1936 $LINK_MAP = cf::map::new;
1243 }; 1937
1938 $LINK_MAP->width (41);
1939 $LINK_MAP->height (41);
1940 $LINK_MAP->alloc;
1941 $LINK_MAP->path ("{link}");
1942 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943 $LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945 # dirty hack because... archetypes are not yet loaded
1946 Event->timer (
1947 after => 2,
1948 cb => sub {
1949 $_[0]->w->cancel;
1950
1951 # provide some exits "home"
1952 my $exit = cf::object::new "exit";
1953
1954 $exit->slaying ($EMERGENCY_POSITION->[0]);
1955 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958 $LINK_MAP->insert ($exit->clone, 19, 19);
1959 $LINK_MAP->insert ($exit->clone, 19, 20);
1960 $LINK_MAP->insert ($exit->clone, 19, 21);
1961 $LINK_MAP->insert ($exit->clone, 20, 19);
1962 $LINK_MAP->insert ($exit->clone, 20, 21);
1963 $LINK_MAP->insert ($exit->clone, 21, 19);
1964 $LINK_MAP->insert ($exit->clone, 21, 20);
1965 $LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967 $exit->destroy;
1968 });
1969
1970 $LINK_MAP->{deny_save} = 1;
1971 $LINK_MAP->{deny_reset} = 1;
1972
1973 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1244} 1974}
1245 1975
1246register "<global>", __PACKAGE__; 1976register "<global>", __PACKAGE__;
1247 1977
1248register_command "perl-reload" => sub { 1978register_command "reload" => sub {
1249 my ($who, $arg) = @_; 1979 my ($who, $arg) = @_;
1250 1980
1251 if ($who->flag (FLAG_WIZ)) { 1981 if ($who->flag (FLAG_WIZ)) {
1252 _perl_reload { 1982 $who->message ("start of reload.");
1253 warn $_[0]; 1983 reload;
1254 $who->message ($_[0]); 1984 $who->message ("end of reload.");
1255 };
1256 } 1985 }
1257}; 1986};
1258 1987
1259unshift @INC, $LIBDIR; 1988unshift @INC, $LIBDIR;
1260 1989
1261$TICK_WATCHER = Event->timer ( 1990$TICK_WATCHER = Event->timer (
1991 reentrant => 0,
1262 prio => 0, 1992 prio => 0,
1263 at => $NEXT_TICK || 1, 1993 at => $NEXT_TICK || $TICK,
1264 data => WF_AUTOCANCEL, 1994 data => WF_AUTOCANCEL,
1265 cb => sub { 1995 cb => sub {
1996 unless ($FREEZE) {
1266 cf::server_tick; # one server iteration 1997 cf::server_tick; # one server iteration
1998 $RUNTIME += $TICK;
1999 }
1267 2000
1268 my $NOW = Event::time;
1269 $NEXT_TICK += $TICK; 2001 $NEXT_TICK += $TICK;
1270 2002
1271 # if we are delayed by four ticks or more, skip them all 2003 # if we are delayed by four ticks or more, skip them all
1272 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; 2004 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273 2005
1274 $TICK_WATCHER->at ($NEXT_TICK); 2006 $TICK_WATCHER->at ($NEXT_TICK);
1275 $TICK_WATCHER->start; 2007 $TICK_WATCHER->start;
1276 }, 2008 },
1277); 2009);
1278 2010
1279IO::AIO::max_poll_time $TICK * 0.2; 2011IO::AIO::max_poll_time $TICK * 0.2;
1280 2012
2013Event->io (
1281Event->io (fd => IO::AIO::poll_fileno, 2014 fd => IO::AIO::poll_fileno,
1282 poll => 'r', 2015 poll => 'r',
1283 prio => 5, 2016 prio => 5,
1284 data => WF_AUTOCANCEL, 2017 data => WF_AUTOCANCEL,
1285 cb => \&IO::AIO::poll_cb); 2018 cb => \&IO::AIO::poll_cb,
2019);
2020
2021Event->timer (
2022 data => WF_AUTOCANCEL,
2023 after => 0,
2024 interval => 10,
2025 cb => sub {
2026 (Coro::unblock_sub {
2027 write_runtime
2028 or warn "ERROR: unable to write runtime file: $!";
2029 })->();
2030 },
2031);
1286 2032
12871 20331
1288 2034

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