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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.209 by root, Mon Feb 12 01:25:55 2007 UTC

8use Storable; 8use Storable;
9use Opcode; 9use Opcode;
10use Safe; 10use Safe;
11use Safe::Hole; 11use Safe::Hole;
12 12
13use Coro 3.3; 13use Coro 3.5 ();
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; 18use Coro::AIO;
19 19
20use BDB ();
21use Data::Dumper;
20use Digest::MD5; 22use Digest::MD5;
21use Fcntl; 23use Fcntl;
22use IO::AIO 2.31 (); 24use IO::AIO 2.32 ();
23use YAML::Syck (); 25use YAML::Syck ();
24use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25 30
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 34
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 36$YAML::Syck::ImplicitUnicode = 1;
30 37
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 39
35our %COMMAND = (); 40our %COMMAND = ();
36our %COMMAND_TIME = (); 41our %COMMAND_TIME = ();
42
43our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 44our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps
38 47
39our @EVENT; 48our @EVENT;
40our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
41 50
42our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 52our $TICK_WATCHER;
53our $AIO_POLL_WATCHER;
54our $WRITE_RUNTIME_WATCHER;
44our $NEXT_TICK; 55our $NEXT_TICK;
45our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
46 61
47our %CFG; 62our %CFG;
48 63
49our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 65our $RUNTIME;
51 66
67our %PLAYER; # all users
52our %MAP; # all maps 68our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 69our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75
76# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 78
58binmode STDOUT; 79binmode STDOUT;
59binmode STDERR; 80binmode STDERR;
60 81
61# read virtual server time, if available 82# read virtual server time, if available
68mkdir cf::localdir; 89mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
73 95
74# a special map that is always available 96our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 97
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 98sub cf::map::normalise;
78 99
79############################################################################# 100#############################################################################
80 101
81=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
82 103
106 127
107=item %cf::CFG 128=item %cf::CFG
108 129
109Configuration for the server, loaded from C</etc/crossfire/config>, or 130Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 131from wherever your confdir points to.
132
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
134
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
137processing has been done. Call C<< ->wait >> on them to maximise the
138window of cpu time available, or simply to synchronise to the server tick.
111 139
112=back 140=back
113 141
114=cut 142=cut
115 143
119 utf8::encode $msg; 147 utf8::encode $msg;
120 148
121 $msg .= "\n" 149 $msg .= "\n"
122 unless $msg =~ /\n$/; 150 unless $msg =~ /\n$/;
123 151
124 LOG llevError, "cfperl: $msg"; 152 LOG llevError, $msg;
125 }; 153 };
126} 154}
127 155
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 175
148$Event::DIED = sub { 176$Event::DIED = sub {
149 warn "error in event callback: @_"; 177 warn "error in event callback: @_";
150}; 178};
151 179
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 180=head2 UTILITY FUNCTIONS
157 181
158=over 4 182=over 4
159 183
184=item dumpval $ref
185
160=cut 186=cut
187
188sub dumpval {
189 eval {
190 local $SIG{__DIE__};
191 my $d;
192 if (1) {
193 $d = new Data::Dumper([$_[0]], ["*var"]);
194 $d->Terse(1);
195 $d->Indent(2);
196 $d->Quotekeys(0);
197 $d->Useqq(1);
198 #$d->Bless(...);
199 $d->Seen($_[1]) if @_ > 1;
200 $d = $d->Dump();
201 }
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d
204 } || "[unable to dump $_[0]: '$@']";
205}
161 206
162use JSON::Syck (); # TODO# replace by JSON::PC once working 207use JSON::Syck (); # TODO# replace by JSON::PC once working
163 208
164=item $ref = cf::from_json $json 209=item $ref = cf::from_json $json
165 210
180 225
181sub to_json($) { 226sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 228 JSON::Syck::Dump $_[0]
184} 229}
230
231=item cf::lock_wait $string
232
233Wait until the given lock is available. See cf::lock_acquire.
234
235=item my $lock = cf::lock_acquire $string
236
237Wait until the given lock is available and then acquires it and returns
238a Coro::guard object. If the guard object gets destroyed (goes out of scope,
239for example when the coroutine gets canceled), the lock is automatically
240returned.
241
242Lock names should begin with a unique identifier (for example, cf::map::find
243uses map_find and cf::map::load uses map_load).
244
245=cut
246
247our %LOCK;
248
249sub lock_wait($) {
250 my ($key) = @_;
251
252 # wait for lock, if any
253 while ($LOCK{$key}) {
254 push @{ $LOCK{$key} }, $Coro::current;
255 Coro::schedule;
256 }
257}
258
259sub lock_acquire($) {
260 my ($key) = @_;
261
262 # wait, to be sure we are not locked
263 lock_wait $key;
264
265 $LOCK{$key} = [];
266
267 Coro::guard {
268 # wake up all waiters, to be on the safe side
269 $_->ready for @{ delete $LOCK{$key} };
270 }
271}
272
273sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active;
275
276 my $guard = Coro::guard {
277 $TICK_WATCHER->start;
278 $WRITE_RUNTIME_WATCHER->start;
279 };
280 $WRITE_RUNTIME_WATCHER->stop;
281 $TICK_WATCHER->stop;
282 $guard
283}
284
285=item cf::async { BLOCK }
286
287Currently the same as Coro::async_pool, meaning you cannot use
288C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
289thing you are allowed to do is call C<prio> on it.
290
291=cut
292
293BEGIN { *async = \&Coro::async_pool }
185 294
186=item cf::sync_job { BLOCK } 295=item cf::sync_job { BLOCK }
187 296
188The design of crossfire+ requires that the main coro ($Coro::main) is 297The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 298always able to handle events or runnable, as crossfire+ is only partly
197=cut 306=cut
198 307
199sub sync_job(&) { 308sub sync_job(&) {
200 my ($job) = @_; 309 my ($job) = @_;
201 310
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 == $Coro::main) { 311 if ($Coro::current == $Coro::main) {
312 # this is the main coro, too bad, we have to block
313 # till the operation succeeds, freezing the server :/
314
212 # TODO: use suspend/resume instead 315 # TODO: use suspend/resume instead
213 local $FREEZE = 1; 316 # (but this is cancel-safe)
317 my $freeze_guard = freeze_mainloop;
318
319 my $busy = 1;
320 my @res;
321
322 (async {
323 @res = eval { $job->() };
324 warn $@ if $@;
325 undef $busy;
214 $coro->prio (Coro::PRIO_MAX); 326 })->prio (Coro::PRIO_MAX);
327
215 while ($busy) { 328 while ($busy) {
216 Coro::cede_notself; 329 Coro::cede or Event::one_event;
217 Event::one_event unless Coro::nready;
218 } 330 }
331
332 wantarray ? @res : $res[0]
219 } else { 333 } else {
220 $coro->join; 334 # we are in another coroutine, how wonderful, everything just works
335
336 $job->()
221 } 337 }
222
223 wantarray ? @res : $res[0]
224} 338}
225 339
226=item $coro = cf::coro { BLOCK } 340=item $coro = cf::async_ext { BLOCK }
227 341
228Creates and returns a new coro. This coro is automcatially being canceled 342Like async, but this coro is automatically being canceled when the
229when the extension calling this is being unloaded. 343extension calling this is being unloaded.
230 344
231=cut 345=cut
232 346
233sub coro(&) { 347sub async_ext(&) {
234 my $cb = shift; 348 my $cb = shift;
235 349
236 my $coro; $coro = async { 350 my $coro = &Coro::async ($cb);
237 eval {
238 $cb->();
239 };
240 warn $@ if $@;
241 };
242 351
243 $coro->on_destroy (sub { 352 $coro->on_destroy (sub {
244 delete $EXT_CORO{$coro+0}; 353 delete $EXT_CORO{$coro+0};
245 }); 354 });
246 $EXT_CORO{$coro+0} = $coro; 355 $EXT_CORO{$coro+0} = $coro;
252 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
253 362
254 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255 or return; 364 or return;
256 365
257 my $value = $cf::RUNTIME; 366 my $value = $cf::RUNTIME + 90 + 10;
367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369
258 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
259 and return; 371 and return;
260 372
373 # always fsync - this file is important
261 aio_fsync $fh 374 aio_fsync $fh
262 and return; 375 and return;
263 376
264 close $fh 377 close $fh
265 or return; 378 or return;
271} 384}
272 385
273=back 386=back
274 387
275=cut 388=cut
276
277#############################################################################
278
279package cf::path;
280
281sub new {
282 my ($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;
386 389
387############################################################################# 390#############################################################################
388 391
389=head2 ATTACHABLE OBJECTS 392=head2 ATTACHABLE OBJECTS
390 393
516our @CB_TYPE = (); # registry for type (cf-object class) based events 519our @CB_TYPE = (); # registry for type (cf-object class) based events
517our @CB_MAP = (); 520our @CB_MAP = ();
518 521
519my %attachment; 522my %attachment;
520 523
524sub cf::attachable::thawer_merge {
525 # simply override everything except _meta
526 local $_[0]{_meta};
527 %{$_[0]} = %{$_[1]};
528}
529
521sub _attach_cb($$$$) { 530sub _attach_cb($$$$) {
522 my ($registry, $event, $prio, $cb) = @_; 531 my ($registry, $event, $prio, $cb) = @_;
523 532
524 use sort 'stable'; 533 use sort 'stable';
525 534
696# object support 705# object support
697 706
698sub reattach { 707sub reattach {
699 # basically do the same as instantiate, without calling instantiate 708 # basically do the same as instantiate, without calling instantiate
700 my ($obj) = @_; 709 my ($obj) = @_;
710
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701 712
702 my $registry = $obj->registry; 713 my $registry = $obj->registry;
703 714
704 @$registry = (); 715 @$registry = ();
705 716
752 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
753 764
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 769 close $fh;
759 770
760 if (@$objs) { 771 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 777 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
768 } 779 }
769 } else { 780 } else {
770 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
776 } 787 }
777 } else { 788 } else {
778 aio_unlink $filename; 789 aio_unlink $filename;
779 aio_unlink "$filename.pst"; 790 aio_unlink "$filename.pst";
780 } 791 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
781 } 798 }
782} 799}
783 800
784sub object_freezer_as_string { 801sub object_freezer_as_string {
785 my ($rdata, $objs) = @_; 802 my ($rdata, $objs) = @_;
791 808
792sub object_thawer_load { 809sub object_thawer_load {
793 my ($filename) = @_; 810 my ($filename) = @_;
794 811
795 my ($data, $av); 812 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
796 816
797 (aio_load $filename, $data) >= 0 817 (aio_load $filename, $data) >= 0
798 or return; 818 or return;
799 819
800 unless (aio_stat "$filename.pst") { 820 unless (aio_stat "$filename.pst") {
801 (aio_load "$filename.pst", $av) >= 0 821 (aio_load "$filename.pst", $av) >= 0
802 or return; 822 or return;
803 $av = eval { (Storable::thaw <$av>)->{objs} }; 823 $av = eval { (Storable::thaw $av)->{objs} };
804 } 824 }
805 825
826 warn sprintf "loading %s (%d)\n",
827 $filename, length $data, scalar @{$av || []};#d#
806 return ($data, $av); 828 return ($data, $av);
807} 829}
808 830
809############################################################################# 831#############################################################################
810# command handling &c 832# command handling &c
835=cut 857=cut
836 858
837sub register_extcmd { 859sub register_extcmd {
838 my ($name, $cb) = @_; 860 my ($name, $cb) = @_;
839 861
840 my $caller = caller;
841 #warn "registering extcmd '$name' to '$caller'";
842
843 $EXTCMD{$name} = [$cb, $caller]; 862 $EXTCMD{$name} = $cb;
844} 863}
845 864
846cf::player->attach ( 865cf::player->attach (
847 on_command => sub { 866 on_command => sub {
848 my ($pl, $name, $params) = @_; 867 my ($pl, $name, $params) = @_;
861 880
862 my $msg = eval { from_json $buf }; 881 my $msg = eval { from_json $buf };
863 882
864 if (ref $msg) { 883 if (ref $msg) {
865 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 884 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866 if (my %reply = $cb->[0]->($pl, $msg)) { 885 if (my %reply = $cb->($pl, $msg)) {
867 $pl->ext_reply ($msg->{msgid}, %reply); 886 $pl->ext_reply ($msg->{msgid}, %reply);
868 } 887 }
869 } 888 }
870 } else { 889 } else {
871 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 890 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
873 892
874 cf::override; 893 cf::override;
875 }, 894 },
876); 895);
877 896
878sub register {
879 my ($base, $pkg) = @_;
880
881 #TODO
882}
883
884sub load_extension { 897sub load_extension {
885 my ($path) = @_; 898 my ($path) = @_;
886 899
887 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 900 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
888 my $base = $1; 901 my $base = $1;
889 my $pkg = $1; 902 my $pkg = $1;
890 $pkg =~ s/[^[:word:]]/_/g; 903 $pkg =~ s/[^[:word:]]/_/g;
891 $pkg = "ext::$pkg"; 904 $pkg = "ext::$pkg";
892 905
893 warn "loading '$path' into '$pkg'\n"; 906 warn "... loading '$path' into '$pkg'\n";
894 907
895 open my $fh, "<:utf8", $path 908 open my $fh, "<:utf8", $path
896 or die "$path: $!"; 909 or die "$path: $!";
897 910
898 my $source = 911 my $source =
899 "package $pkg; use strict; use utf8;\n" 912 "package $pkg; use strict; use utf8;\n"
900 . "#line 1 \"$path\"\n{\n" 913 . "#line 1 \"$path\"\n{\n"
901 . (do { local $/; <$fh> }) 914 . (do { local $/; <$fh> })
902 . "\n};\n1"; 915 . "\n};\n1";
903 916
904 eval $source 917 unless (eval $source) {
905 or die $@ ? "$path: $@\n" 918 my $msg = $@ ? "$path: $@\n"
906 : "extension disabled.\n"; 919 : "extension disabled.\n";
907 920 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908 push @exts, $pkg; 921 warn $@;
909 $ext_pkg{$base} = $pkg; 922 warn "mandatory extension failed to load, exiting.\n";
910 923 exit 1;
911# no strict 'refs'; 924 }
912# @{"$pkg\::ISA"} = ext::; 925 die $@;
913
914 register $base, $pkg;
915}
916
917sub unload_extension {
918 my ($pkg) = @_;
919
920 warn "removing extension $pkg\n";
921
922 # remove hooks
923 #TODO
924# for my $idx (0 .. $#PLUGIN_EVENT) {
925# delete $hook[$idx]{$pkg};
926# } 926 }
927 927
928 # remove commands 928 push @EXTS, $pkg;
929 for my $name (keys %COMMAND) {
930 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932 if (@cb) {
933 $COMMAND{$name} = \@cb;
934 } else {
935 delete $COMMAND{$name};
936 }
937 }
938
939 # remove extcmds
940 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941 delete $EXTCMD{$name};
942 }
943
944 if (my $cb = $pkg->can ("unload")) {
945 eval {
946 $cb->($pkg);
947 1
948 } or warn "$pkg unloaded, but with errors: $@";
949 }
950
951 Symbol::delete_package $pkg;
952} 929}
953 930
954sub load_extensions { 931sub load_extensions {
955 for my $ext (<$LIBDIR/*.ext>) { 932 for my $ext (<$LIBDIR/*.ext>) {
956 next unless -r $ext; 933 next unless -r $ext;
960 } or warn "$ext not loaded: $@"; 937 } or warn "$ext not loaded: $@";
961 } 938 }
962} 939}
963 940
964############################################################################# 941#############################################################################
965# load/save/clean perl data associated with a map
966
967*cf::mapsupport::on_clean = sub {
968 my ($map) = @_;
969
970 my $path = $map->tmpname;
971 defined $path or return;
972
973 unlink "$path.pst";
974};
975
976cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978#############################################################################
979# load/save perl data associated with player->ob objects
980
981sub all_objects(@) {
982 @_, map all_objects ($_->inv), @_
983}
984
985# TODO: compatibility cruft, remove when no longer needed
986cf::player->attach (
987 on_load => sub {
988 my ($pl, $path) = @_;
989
990 for my $o (all_objects $pl->ob) {
991 if (my $value = $o->get_ob_key_value ("_perl_data")) {
992 $o->set_ob_key_value ("_perl_data");
993
994 %$o = %{ Storable::thaw pack "H*", $value };
995 }
996 }
997 },
998);
999
1000#############################################################################
1001 942
1002=head2 CORE EXTENSIONS 943=head2 CORE EXTENSIONS
1003 944
1004Functions and methods that extend core crossfire objects. 945Functions and methods that extend core crossfire objects.
1005 946
947=cut
948
949package cf::player;
950
951use Coro::AIO;
952
1006=head3 cf::player 953=head3 cf::player
1007 954
1008=over 4 955=over 4
1009 956
1010=item cf::player::exists $login 957=item cf::player::find $login
1011 958
1012Returns true when the given account exists. 959Returns the given player object, loading it if necessary (might block).
1013 960
1014=cut 961=cut
1015 962
1016sub cf::player::exists($) { 963sub playerdir($) {
1017 cf::player::find $_[0] 964 cf::localdir
1018 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 965 . "/"
966 . cf::playerdir
967 . "/"
968 . (ref $_[0] ? $_[0]->ob->name : $_[0])
969}
970
971sub path($) {
972 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973
974 (playerdir $login) . "/$login.pl"
975}
976
977sub find_active($) {
978 $cf::PLAYER{$_[0]}
979 and $cf::PLAYER{$_[0]}->active
980 and $cf::PLAYER{$_[0]}
981}
982
983sub exists($) {
984 my ($login) = @_;
985
986 $cf::PLAYER{$login}
987 or cf::sync_job { !aio_stat path $login }
988}
989
990sub find($) {
991 return $cf::PLAYER{$_[0]} || do {
992 my $login = $_[0];
993
994 my $guard = cf::lock_acquire "user_find:$login";
995
996 $cf::PLAYER{$_[0]} || do {
997 my $pl = load_pl path $login
998 or return;
999 $cf::PLAYER{$login} = $pl
1000 }
1001 }
1002}
1003
1004sub save($) {
1005 my ($pl) = @_;
1006
1007 return if $pl->{deny_save};
1008
1009 my $path = path $pl;
1010 my $guard = cf::lock_acquire "user_save:$path";
1011
1012 return if $pl->{deny_save};
1013
1014 aio_mkdir playerdir $pl, 0770;
1015 $pl->{last_save} = $cf::RUNTIME;
1016
1017 $pl->save_pl ($path);
1018 Coro::cede;
1019}
1020
1021sub new($) {
1022 my ($login) = @_;
1023
1024 my $self = create;
1025
1026 $self->ob->name ($login);
1027 $self->{deny_save} = 1;
1028
1029 $cf::PLAYER{$login} = $self;
1030
1031 $self
1032}
1033
1034=item $pl->quit_character
1035
1036Nukes the player without looking back. If logged in, the connection will
1037be destroyed. May block for a long time.
1038
1039=cut
1040
1041sub quit_character {
1042 my ($pl) = @_;
1043
1044 $pl->{deny_save} = 1;
1045 $pl->password ("*"); # this should lock out the player until we nuked the dir
1046
1047 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048 $pl->deactivate;
1049 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1050 $pl->ns->destroy if $pl->ns;
1051
1052 my $path = playerdir $pl;
1053 my $temp = "$path~$cf::RUNTIME~deleting~";
1054 aio_rename $path, $temp;
1055 delete $cf::PLAYER{$pl->ob->name};
1056 $pl->destroy;
1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item cf::player::list_logins
1061
1062Returns am arrayref of all valid playernames in the system, can take a
1063while and may block, so not sync_job-capable, ever.
1064
1065=cut
1066
1067sub list_logins {
1068 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1069 or return [];
1070
1071 my @logins;
1072
1073 for my $login (@$dirs) {
1074 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1075 aio_read $fh, 0, 512, my $buf, 0 or next;
1076 $buf !~ /^password -------------$/m or next; # official not-valid tag
1077
1078 utf8::decode $login;
1079 push @logins, $login;
1080 }
1081
1082 \@logins
1083}
1084
1085=item $player->maps
1086
1087Returns an arrayref of map paths that are private for this
1088player. May block.
1089
1090=cut
1091
1092sub maps($) {
1093 my ($pl) = @_;
1094
1095 $pl = ref $pl ? $pl->ob->name : $pl;
1096
1097 my $files = aio_readdir playerdir $pl
1098 or return;
1099
1100 my @paths;
1101
1102 for (@$files) {
1103 utf8::decode $_;
1104 next if /\.(?:pl|pst)$/;
1105 next unless /^$PATH_SEP/o;
1106
1107 push @paths, cf::map::normalise "~$pl/$_";
1108 }
1109
1110 \@paths
1019} 1111}
1020 1112
1021=item $player->ext_reply ($msgid, $msgtype, %msg) 1113=item $player->ext_reply ($msgid, $msgtype, %msg)
1022 1114
1023Sends an ext reply to the player. 1115Sends an ext reply to the player.
1024 1116
1025=cut 1117=cut
1026 1118
1027sub cf::player::ext_reply($$$%) { 1119sub ext_reply($$$%) {
1028 my ($self, $id, %msg) = @_; 1120 my ($self, $id, %msg) = @_;
1029 1121
1030 $msg{msgid} = $id; 1122 $msg{msgid} = $id;
1031 1123
1032 $self->send ("ext " . to_json \%msg); 1124 $self->send ("ext " . cf::to_json \%msg);
1033} 1125}
1126
1127package cf;
1034 1128
1035=back 1129=back
1036 1130
1037 1131
1038=head3 cf::map 1132=head3 cf::map
1044package cf::map; 1138package cf::map;
1045 1139
1046use Fcntl; 1140use Fcntl;
1047use Coro::AIO; 1141use Coro::AIO;
1048 1142
1143use overload
1144 '""' => \&as_string,
1145 fallback => 1;
1146
1049our $MAX_RESET = 7200; 1147our $MAX_RESET = 3600;
1050our $DEFAULT_RESET = 3600; 1148our $DEFAULT_RESET = 3000;
1051$MAX_RESET = 10;#d#
1052$DEFAULT_RESET = 10;#d#
1053 1149
1054sub generate_random_map { 1150sub generate_random_map {
1055 my ($path, $rmp) = @_; 1151 my ($self, $rmp) = @_;
1056
1057 # mit "rum" bekleckern, nicht 1152 # mit "rum" bekleckern, nicht
1058 cf::map::_create_random_map 1153 $self->_create_random_map (
1059 $path,
1060 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1154 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1155 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1156 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063 $rmp->{exit_on_final_map}, 1157 $rmp->{exit_on_final_map},
1064 $rmp->{xsize}, $rmp->{ysize}, 1158 $rmp->{xsize}, $rmp->{ysize},
1065 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1159 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1160 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1161 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1162 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1163 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070 (cf::region::find $rmp->{region}) 1164 (cf::region::find $rmp->{region}), $rmp->{custom}
1165 )
1166}
1167
1168=item cf::map->register ($regex, $prio)
1169
1170Register a handler for the map path matching the given regex at the
1171givne priority (higher is better, built-in handlers have priority 0, the
1172default).
1173
1174=cut
1175
1176sub register {
1177 my (undef, $regex, $prio) = @_;
1178 my $pkg = caller;
1179
1180 no strict;
1181 push @{"$pkg\::ISA"}, __PACKAGE__;
1182
1183 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1184}
1185
1186# also paths starting with '/'
1187$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1188
1189sub thawer_merge {
1190 my ($self, $merge) = @_;
1191
1192 # we have to keep some variables in memory intact
1193 local $self->{path};
1194 local $self->{load_path};
1195 local $self->{deny_save};
1196 local $self->{deny_reset};
1197
1198 $self->SUPER::thawer_merge ($merge);
1199}
1200
1201sub normalise {
1202 my ($path, $base) = @_;
1203
1204 $path = "$path"; # make sure its a string
1205
1206 $path =~ s/\.map$//;
1207
1208 # map plan:
1209 #
1210 # /! non-realised random map exit (special hack!)
1211 # {... are special paths that are not being touched
1212 # ?xxx/... are special absolute paths
1213 # ?random/... random maps
1214 # /... normal maps
1215 # ~user/... per-player map of a specific user
1216
1217 $path =~ s/$PATH_SEP/\//go;
1218
1219 # treat it as relative path if it starts with
1220 # something that looks reasonable
1221 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1222 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1223
1224 $base =~ s{[^/]+/?$}{};
1225 $path = "$base/$path";
1226 }
1227
1228 for ($path) {
1229 redo if s{//}{/};
1230 redo if s{/\.?/}{/};
1231 redo if s{/[^/]+/\.\./}{/};
1232 }
1233
1234 $path
1235}
1236
1237sub new_from_path {
1238 my (undef, $path, $base) = @_;
1239
1240 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1241
1242 $path = normalise $path, $base;
1243
1244 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1245 if ($path =~ $EXT_MAP{$pkg}[1]) {
1246 my $self = bless cf::map::new, $pkg;
1247 $self->{path} = $path; $self->path ($path);
1248 $self->init; # pass $1 etc.
1249 return $self;
1250 }
1251 }
1252
1253 Carp::carp "unable to resolve path '$path' (base '$base').";
1254 ()
1255}
1256
1257sub init {
1258 my ($self) = @_;
1259
1260 $self
1261}
1262
1263sub as_string {
1264 my ($self) = @_;
1265
1266 "$self->{path}"
1267}
1268
1269# the displayed name, this is a one way mapping
1270sub visible_name {
1271 &as_string
1272}
1273
1274# the original (read-only) location
1275sub load_path {
1276 my ($self) = @_;
1277
1278 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1279}
1280
1281# the temporary/swap location
1282sub save_path {
1283 my ($self) = @_;
1284
1285 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1286 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1287}
1288
1289# the unique path, undef == no special unique path
1290sub uniq_path {
1291 my ($self) = @_;
1292
1293 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1294 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071} 1295}
1072 1296
1073# and all this just because we cannot iterate over 1297# and all this just because we cannot iterate over
1074# all maps in C++... 1298# all maps in C++...
1075sub change_all_map_light { 1299sub change_all_map_light {
1076 my ($change) = @_; 1300 my ($change) = @_;
1077 1301
1078 $_->change_map_light ($change) for values %cf::MAP; 1302 $_->change_map_light ($change)
1303 for grep $_->outdoor, values %cf::MAP;
1079} 1304}
1080 1305
1306sub unlink_save {
1307 my ($self) = @_;
1308
1309 utf8::encode (my $save = $self->save_path);
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317}
1318
1081sub try_load_header($) { 1319sub load_header_from($) {
1082 my ($path) = @_; 1320 my ($self, $path) = @_;
1083 1321
1084 utf8::encode $path; 1322 utf8::encode $path;
1085 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1324 # or return;
1325
1326 $self->_load_header ($path)
1086 or return; 1327 or return;
1087 1328
1088 my $map = cf::map::new 1329 $self->{load_path} = $path;
1330
1331 1
1332}
1333
1334sub load_header_orig {
1335 my ($self) = @_;
1336
1337 $self->load_header_from ($self->load_path)
1338}
1339
1340sub load_header_temp {
1341 my ($self) = @_;
1342
1343 $self->load_header_from ($self->save_path)
1344}
1345
1346sub prepare_temp {
1347 my ($self) = @_;
1348
1349 $self->last_access ((delete $self->{last_access})
1350 || $cf::RUNTIME); #d#
1351 # safety
1352 $self->{instantiate_time} = $cf::RUNTIME
1353 if $self->{instantiate_time} > $cf::RUNTIME;
1354}
1355
1356sub prepare_orig {
1357 my ($self) = @_;
1358
1359 $self->{load_original} = 1;
1360 $self->{instantiate_time} = $cf::RUNTIME;
1361 $self->last_access ($cf::RUNTIME);
1362 $self->instantiate;
1363}
1364
1365sub load_header {
1366 my ($self) = @_;
1367
1368 if ($self->load_header_temp) {
1369 $self->prepare_temp;
1370 } else {
1371 $self->load_header_orig
1089 or return; 1372 or return;
1373 $self->prepare_orig;
1374 }
1090 1375
1091 $map->load_header ($path) 1376 1
1092 or return;
1093
1094 $map->{load_path} = $path;
1095 use Data::Dumper; warn Dumper $map;#d#
1096
1097 $map
1098} 1377}
1099 1378
1379sub find;
1100sub find_map { 1380sub find {
1101 my ($path, $origin) = @_; 1381 my ($path, $origin) = @_;
1102 1382
1103 #warn "find_map<$path,$origin>\n";#d# 1383 $path = normalise $path, $origin && $origin->path;
1104 1384
1105 $path = ref $path ? $path : new cf::path $path, $origin && $origin->path; 1385 cf::lock_wait "map_find:$path";
1106 my $key = $path->as_string;
1107 1386
1108 $cf::MAP{$key} || do { 1387 $cf::MAP{$path} || do {
1109 # do it the slow way 1388 my $guard = cf::lock_acquire "map_find:$path";
1110 my $map = try_load_header $path->save_path; 1389 my $map = new_from_path cf::map $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; 1390 or return;
1124 1391
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); 1392 $map->{last_save} = $cf::RUNTIME;
1136 1393
1137 $map->reset if $map->should_reset; 1394 $map->load_header
1395 or return;
1138 1396
1397 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1398 # doing this can freeze the server in a sync job, obviously
1399 #$cf::WAIT_FOR_TICK->wait;
1400 $map->reset;
1401 undef $guard;
1402 return find $path;
1403 }
1404
1139 $cf::MAP{$key} = $map 1405 $cf::MAP{$path} = $map
1140 } 1406 }
1141} 1407}
1408
1409sub pre_load { }
1410sub post_load { }
1142 1411
1143sub load { 1412sub load {
1144 my ($self) = @_; 1413 my ($self) = @_;
1145 1414
1415 local $self->{deny_reset} = 1; # loading can take a long time
1416
1417 my $path = $self->{path};
1418 my $guard = cf::lock_acquire "map_load:$path";
1419
1146 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
1147 1421
1148 $self->in_memory (cf::MAP_LOADING); 1422 $self->in_memory (cf::MAP_LOADING);
1149 1423
1150 my $path = $self->{path};
1151
1152 $self->alloc; 1424 $self->alloc;
1425
1426 $self->pre_load;
1427
1153 $self->load_objects ($self->{load_path}, 1) 1428 $self->_load_objects ($self->{load_path}, 1)
1154 or return; 1429 or return;
1155 1430
1156 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original}; 1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1432 if delete $self->{load_original};
1157 1433
1158 if (my $uniq = $path->uniq_path) { 1434 if (my $uniq = $self->uniq_path) {
1159 utf8::encode $uniq; 1435 utf8::encode $uniq;
1160 if (aio_open $uniq, O_RDONLY, 0) { 1436 if (aio_open $uniq, O_RDONLY, 0) {
1161 $self->clear_unique_items; 1437 $self->clear_unique_items;
1162 $self->load_objects ($uniq, 0); 1438 $self->_load_objects ($uniq, 0);
1163 } 1439 }
1164 } 1440 }
1441
1442 Coro::cede;
1165 1443
1166 # now do the right thing for maps 1444 # now do the right thing for maps
1167 $self->link_multipart_objects; 1445 $self->link_multipart_objects;
1168 1446
1169 if ($self->{path}->is_style_map) { 1447 unless ($self->{deny_activate}) {
1170 $self->{deny_save} = 1; 1448 $self->decay_objects;
1171 $self->{deny_reset} = 1;
1172 } else {
1173 $self->fix_auto_apply; 1449 $self->fix_auto_apply;
1174 $self->decay_objects;
1175 $self->update_buttons; 1450 $self->update_buttons;
1451 Coro::cede;
1176 $self->set_darkness_map; 1452 $self->set_darkness_map;
1177 $self->difficulty ($self->estimate_difficulty) 1453 $self->difficulty ($self->estimate_difficulty)
1178 unless $self->difficulty; 1454 unless $self->difficulty;
1455 Coro::cede;
1179 $self->activate; 1456 $self->activate;
1180 } 1457 }
1181 1458
1459 $self->post_load;
1460
1182 $self->in_memory (cf::MAP_IN_MEMORY); 1461 $self->in_memory (cf::MAP_IN_MEMORY);
1183} 1462}
1184 1463
1185sub load_map_sync { 1464sub customise_for {
1465 my ($self, $ob) = @_;
1466
1467 return find "~" . $ob->name . "/" . $self->{path}
1468 if $self->per_player;
1469
1470 $self
1471}
1472
1473# find and load all maps in the 3x3 area around a map
1474sub load_diag {
1475 my ($map) = @_;
1476
1477 my @diag; # diagonal neighbours
1478
1479 for (0 .. 3) {
1480 my $neigh = $map->tile_path ($_)
1481 or next;
1482 $neigh = find $neigh, $map
1483 or next;
1484 $neigh->load;
1485
1486 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1487 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1488 }
1489
1490 for (@diag) {
1491 my $neigh = find @$_
1492 or next;
1493 $neigh->load;
1494 }
1495}
1496
1497sub find_sync {
1186 my ($path, $origin) = @_; 1498 my ($path, $origin) = @_;
1187 1499
1188 #warn "load_map_sync<$path, $origin>\n";#d# 1500 cf::sync_job { find $path, $origin }
1501}
1189 1502
1190 cf::sync_job { 1503sub do_load_sync {
1191 my $map = cf::map::find_map $path, $origin 1504 my ($map) = @_;
1192 or return; 1505
1506 cf::sync_job { $map->load };
1507}
1508
1509our %MAP_PREFETCH;
1510our $MAP_PREFETCHER = undef;
1511
1512sub find_async {
1513 my ($path, $origin) = @_;
1514
1515 $path = normalise $path, $origin && $origin->{path};
1516
1517 if (my $map = $cf::MAP{$path}) {
1518 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1519 }
1520
1521 undef $MAP_PREFETCH{$path};
1522 $MAP_PREFETCHER ||= cf::async {
1523 while (%MAP_PREFETCH) {
1524 for my $path (keys %MAP_PREFETCH) {
1525 my $map = find $path
1526 or next;
1193 $map->load; 1527 $map->load;
1194 $map 1528
1529 delete $MAP_PREFETCH{$path};
1530 }
1531 }
1532 undef $MAP_PREFETCHER;
1195 } 1533 };
1534 $MAP_PREFETCHER->prio (6);
1535
1536 ()
1196} 1537}
1197 1538
1198sub save { 1539sub save {
1199 my ($self) = @_; 1540 my ($self) = @_;
1200 1541
1201 my $save = $self->{path}->save_path; utf8::encode $save; 1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1202 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203 1543
1204 $self->{last_save} = $cf::RUNTIME; 1544 $self->{last_save} = $cf::RUNTIME;
1205 1545
1206 return unless $self->dirty; 1546 return unless $self->dirty;
1207 1547
1548 my $save = $self->save_path; utf8::encode $save;
1549 my $uniq = $self->uniq_path; utf8::encode $uniq;
1550
1208 $self->{load_path} = $save; 1551 $self->{load_path} = $save;
1209 1552
1210 return if $self->{deny_save}; 1553 return if $self->{deny_save};
1211 1554
1212 warn "saving map ", $self->path; 1555 local $self->{last_access} = $self->last_access;#d#
1556
1557 cf::async {
1558 $_->contr->save for $self->players;
1559 };
1213 1560
1214 if ($uniq) { 1561 if ($uniq) {
1215 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216 $self->save_objects ($uniq, cf::IO_UNIQUES); 1563 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1217 } else { 1564 } else {
1218 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1565 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219 } 1566 }
1220} 1567}
1221 1568
1222sub swap_out { 1569sub swap_out {
1223 my ($self) = @_; 1570 my ($self) = @_;
1571
1572 # save first because save cedes
1573 $self->save;
1574
1575 my $lock = cf::lock_acquire "map_data:" . $self->path;
1224 1576
1225 return if $self->players; 1577 return if $self->players;
1226 return if $self->in_memory != cf::MAP_IN_MEMORY; 1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1227 return if $self->{deny_save}; 1579 return if $self->{deny_save};
1228 1580
1229 $self->save;
1230 $self->clear; 1581 $self->clear;
1231 $self->in_memory (cf::MAP_SWAPPED); 1582 $self->in_memory (cf::MAP_SWAPPED);
1232} 1583}
1233 1584
1585sub reset_at {
1586 my ($self) = @_;
1587
1588 # TODO: safety, remove and allow resettable per-player maps
1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1590 return 1e99 if $self->{deny_reset};
1591
1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594
1595 $time + $to
1596}
1597
1234sub should_reset { 1598sub 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) = @_; 1599 my ($self) = @_;
1251 1600
1252 utf8::encode (my $save = $self->{path}->save_path); 1601 $self->reset_at <= $cf::RUNTIME
1253 aioreq_pri 3; IO::AIO::aio_unlink $save;
1254 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255} 1602}
1256 1603
1257sub reset { 1604sub reset {
1258 my ($self) = @_; 1605 my ($self) = @_;
1259 1606
1607 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608
1260 return if $self->players; 1609 return if $self->players;
1261 return if $self->{path}{user_rel};#d# 1610 return if $self->isa ("ext::map_per_player");#d#
1262 1611
1263 warn "resetting map ", $self->path;#d# 1612 warn "resetting map ", $self->path;#d#
1264 1613
1265 delete $cf::MAP{$self->path}; 1614 delete $cf::MAP{$self->path};
1615
1616 $self->in_memory (cf::MAP_SWAPPED);
1617 $self->clear;
1266 1618
1267 $_->clear_links_to ($self) for values %cf::MAP; 1619 $_->clear_links_to ($self) for values %cf::MAP;
1268 1620
1269 $self->unlink_save; 1621 $self->unlink_save;
1270 $self->destroy; 1622 $self->destroy;
1271} 1623}
1272 1624
1273sub customise_for { 1625my $nuke_counter = "aaaa";
1274 my ($map, $ob) = @_;
1275 1626
1276 if ($map->per_player) { 1627sub nuke {
1277 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1628 my ($self) = @_;
1278 }
1279 1629
1280 $map 1630 delete $cf::MAP{$self->path};
1281}
1282 1631
1283sub emergency_save { 1632 $self->unlink_save;
1284 local $cf::FREEZE = 1;
1285 1633
1286 warn "enter emergency map save\n"; 1634 bless $self, "cf::map";
1635 delete $self->{deny_reset};
1636 $self->{deny_save} = 1;
1637 $self->reset_timeout (1);
1638 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287 1639
1288 cf::sync_job { 1640 $cf::MAP{$self->path} = $self;
1289 warn "begin emergency map save\n"; 1641
1290 $_->save for values %cf::MAP; 1642 $self->reset; # polite request, might not happen
1643}
1644
1645=item cf::map::unique_maps
1646
1647Returns an arrayref of paths of all shared maps that have
1648instantiated unique items. May block.
1649
1650=cut
1651
1652sub unique_maps() {
1653 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1654 or return;
1655
1656 my @paths;
1657
1658 for (@$files) {
1659 utf8::decode $_;
1660 next if /\.pst$/;
1661 next unless /^$PATH_SEP/o;
1662
1663 push @paths, cf::map::normalise $_;
1291 }; 1664 }
1292 1665
1293 warn "end emergency map save\n"; 1666 \@paths
1294} 1667}
1295 1668
1296package cf; 1669package cf;
1297 1670
1298=back 1671=back
1299 1672
1673=head3 cf::object
1674
1675=cut
1676
1677package cf::object;
1678
1679=over 4
1680
1681=item $ob->inv_recursive
1682
1683Returns the inventory of the object _and_ their inventories, recursively.
1684
1685=cut
1686
1687sub inv_recursive_;
1688sub inv_recursive_ {
1689 map { $_, inv_recursive_ $_->inv } @_
1690}
1691
1692sub inv_recursive {
1693 inv_recursive_ inv $_[0]
1694}
1695
1696package cf;
1697
1698=back
1300 1699
1301=head3 cf::object::player 1700=head3 cf::object::player
1302 1701
1303=over 4 1702=over 4
1304 1703
1340 (ref $cf::CFG{"may_$access"} 1739 (ref $cf::CFG{"may_$access"}
1341 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1740 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342 : $cf::CFG{"may_$access"}) 1741 : $cf::CFG{"may_$access"})
1343} 1742}
1344 1743
1744=item $player_object->enter_link
1745
1746Freezes the player and moves him/her to a special map (C<{link}>).
1747
1748The player should be reasonably safe there for short amounts of time. You
1749I<MUST> call C<leave_link> as soon as possible, though.
1750
1751Will never block.
1752
1753=item $player_object->leave_link ($map, $x, $y)
1754
1755Moves the player out of the special C<{link}> map onto the specified
1756map. If the map is not valid (or omitted), the player will be moved back
1757to the location he/she was before the call to C<enter_link>, or, if that
1758fails, to the emergency map position.
1759
1760Might block.
1761
1762=cut
1763
1764sub link_map {
1765 unless ($LINK_MAP) {
1766 $LINK_MAP = cf::map::find "{link}"
1767 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1768 $LINK_MAP->load;
1769 }
1770
1771 $LINK_MAP
1772}
1773
1345sub cf::object::player::enter_link { 1774sub cf::object::player::enter_link {
1346 my ($self) = @_; 1775 my ($self) = @_;
1347 1776
1348 return if $self->map == $LINK_MAP; 1777 $self->deactivate_recursive;
1349 1778
1779 return if UNIVERSAL::isa $self->map, "ext::map_link";
1780
1350 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1781 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351 if $self->map; 1782 if $self->map;
1352 1783
1353 $self->enter_map ($LINK_MAP, 20, 20); 1784 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1354 $self->deactivate_recursive;
1355} 1785}
1356 1786
1357sub cf::object::player::leave_link { 1787sub cf::object::player::leave_link {
1358 my ($self, $map, $x, $y) = @_; 1788 my ($self, $map, $x, $y) = @_;
1359 1789
1360 my $link_pos = delete $self->{_link_pos}; 1790 my $link_pos = delete $self->{_link_pos};
1361 1791
1362 unless ($map) { 1792 unless ($map) {
1363 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365 # restore original map position 1793 # restore original map position
1366 ($map, $x, $y) = @{ $link_pos || [] }; 1794 ($map, $x, $y) = @{ $link_pos || [] };
1367 $map = cf::map::find_map $map; 1795 $map = cf::map::find $map;
1368 1796
1369 unless ($map) { 1797 unless ($map) {
1370 ($map, $x, $y) = @$EMERGENCY_POSITION; 1798 ($map, $x, $y) = @$EMERGENCY_POSITION;
1371 $map = cf::map::find_map $map 1799 $map = cf::map::find $map
1372 or die "FATAL: cannot load emergency map\n"; 1800 or die "FATAL: cannot load emergency map\n";
1373 } 1801 }
1374 } 1802 }
1375 1803
1376 ($x, $y) = (-1, -1) 1804 ($x, $y) = (-1, -1)
1379 # use -1 or undef as default coordinates, not 0, 0 1807 # use -1 or undef as default coordinates, not 0, 0
1380 ($x, $y) = ($map->enter_x, $map->enter_y) 1808 ($x, $y) = ($map->enter_x, $map->enter_y)
1381 if $x <=0 && $y <= 0; 1809 if $x <=0 && $y <= 0;
1382 1810
1383 $map->load; 1811 $map->load;
1812 $map->load_diag;
1384 1813
1814 return unless $self->contr->active;
1385 $self->activate_recursive; 1815 $self->activate_recursive;
1386 $self->enter_map ($map, $x, $y); 1816 $self->enter_map ($map, $x, $y);
1387} 1817}
1388 1818
1819cf::player->attach (
1820 on_logout => sub {
1821 my ($pl) = @_;
1822
1823 # abort map switching before logout
1824 if ($pl->ob->{_link_pos}) {
1825 cf::sync_job {
1826 $pl->ob->leave_link
1827 };
1828 }
1829 },
1830 on_login => sub {
1831 my ($pl) = @_;
1832
1833 # try to abort aborted map switching on player login :)
1834 # should happen only on crashes
1835 if ($pl->ob->{_link_pos}) {
1836 $pl->ob->enter_link;
1837 (async {
1838 # we need this sleep as the login has a concurrent enter_exit running
1839 # and this sleep increases chances of the player not ending up in scorn
1840 $pl->ob->reply (undef,
1841 "There was an internal problem at your last logout, "
1842 . "the server will try to bring you to your intended destination in a second.",
1843 cf::NDI_RED);
1844 Coro::Timer::sleep 1;
1845 $pl->ob->leave_link;
1846 })->prio (2);
1847 }
1848 },
1849);
1850
1389=item $player_object->goto_map ($map, $x, $y) 1851=item $player_object->goto ($path, $x, $y)
1390 1852
1391=cut 1853=cut
1392 1854
1393sub cf::object::player::goto_map { 1855sub cf::object::player::goto {
1394 my ($self, $path, $x, $y) = @_; 1856 my ($self, $path, $x, $y) = @_;
1395 1857
1396 $self->enter_link; 1858 $self->enter_link;
1397 1859
1398 (Coro::async { 1860 (async {
1399 $path = new cf::path $path; 1861 my $map = eval {
1400
1401 my $map = cf::map::find_map $path->as_string; 1862 my $map = cf::map::find $path;
1402 $map = $map->customise_for ($self) if $map; 1863 $map = $map->customise_for ($self) if $map;
1403
1404 warn "entering ", $map->path, " at ($x, $y)\n"
1405 if $map; 1864 $map
1865 } or
1866 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406 1867
1407 $self->leave_link ($map, $x, $y); 1868 $self->leave_link ($map, $x, $y);
1408 })->prio (1); 1869 })->prio (1);
1409} 1870}
1410 1871
1414 1875
1415sub parse_random_map_params { 1876sub parse_random_map_params {
1416 my ($spec) = @_; 1877 my ($spec) = @_;
1417 1878
1418 my $rmp = { # defaults 1879 my $rmp = { # defaults
1419 xsize => 10, 1880 xsize => (cf::rndm 15, 40),
1420 ysize => 10, 1881 ysize => (cf::rndm 15, 40),
1882 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1883 #layout => string,
1421 }; 1884 };
1422 1885
1423 for (split /\n/, $spec) { 1886 for (split /\n/, $spec) {
1424 my ($k, $v) = split /\s+/, $_, 2; 1887 my ($k, $v) = split /\s+/, $_, 2;
1425 1888
1429 $rmp 1892 $rmp
1430} 1893}
1431 1894
1432sub prepare_random_map { 1895sub prepare_random_map {
1433 my ($exit) = @_; 1896 my ($exit) = @_;
1897
1898 my $guard = cf::lock_acquire "exit_prepare:$exit";
1434 1899
1435 # all this does is basically replace the /! path by 1900 # all this does is basically replace the /! path by
1436 # a new random map path (?random/...) with a seed 1901 # a new random map path (?random/...) with a seed
1437 # that depends on the exit object 1902 # that depends on the exit object
1438 1903
1439 my $rmp = parse_random_map_params $exit->msg; 1904 my $rmp = parse_random_map_params $exit->msg;
1440 1905
1441 if ($exit->map) { 1906 if ($exit->map) {
1442 $rmp->{region} = $exit->map->region_name; 1907 $rmp->{region} = $exit->region->name;
1443 $rmp->{origin_map} = $exit->map->path; 1908 $rmp->{origin_map} = $exit->map->path;
1444 $rmp->{origin_x} = $exit->x; 1909 $rmp->{origin_x} = $exit->x;
1445 $rmp->{origin_y} = $exit->y; 1910 $rmp->{origin_y} = $exit->y;
1446 } 1911 }
1447 1912
1448 $rmp->{random_seed} ||= $exit->random_seed; 1913 $rmp->{random_seed} ||= $exit->random_seed;
1449 1914
1450 my $data = cf::to_json $rmp; 1915 my $data = cf::to_json $rmp;
1451 my $md5 = Digest::MD5::md5_hex $data; 1916 my $md5 = Digest::MD5::md5_hex $data;
1917 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452 1918
1453 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1919 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454 aio_write $fh, 0, (length $data), $data, 0; 1920 aio_write $fh, 0, (length $data), $data, 0;
1921 undef $fh;
1922 aio_rename "$meta~", $meta;
1455 1923
1456 $exit->slaying ("?random/$md5"); 1924 $exit->slaying ("?random/$md5");
1457 $exit->msg (undef); 1925 $exit->msg (undef);
1458 } 1926 }
1459} 1927}
1461sub cf::object::player::enter_exit { 1929sub cf::object::player::enter_exit {
1462 my ($self, $exit) = @_; 1930 my ($self, $exit) = @_;
1463 1931
1464 return unless $self->type == cf::PLAYER; 1932 return unless $self->type == cf::PLAYER;
1465 1933
1934 if ($exit->slaying eq "/!") {
1935 #TODO: this should de-fi-ni-te-ly not be a sync-job
1936 cf::sync_job { prepare_random_map $exit };
1937 }
1938
1939 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1940 my $hp = $exit->stats->hp;
1941 my $sp = $exit->stats->sp;
1942
1466 $self->enter_link; 1943 $self->enter_link;
1467 1944
1468 (Coro::async { 1945 (async {
1946 $self->deactivate_recursive; # just to be sure
1469 unless (eval { 1947 unless (eval {
1470 1948 $self->goto ($slaying, $hp, $sp);
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 1949
1477 1; 1950 1;
1478 }) { 1951 }) {
1479 $self->message ("Something went wrong deep within the crossfire server. " 1952 $self->message ("Something went wrong deep within the crossfire server. "
1480 . "I'll try to bring you back to the map you were before. " 1953 . "I'll try to bring you back to the map you were before. "
1481 . "Please report this to the dungeon master", 1954 . "Please report this to the dungeon master!",
1482 cf::NDI_UNIQUE | cf::NDI_RED); 1955 cf::NDI_UNIQUE | cf::NDI_RED);
1483 1956
1484 warn "ERROR in enter_exit: $@"; 1957 warn "ERROR in enter_exit: $@";
1485 $self->leave_link; 1958 $self->leave_link;
1486 } 1959 }
1537 on_reply => sub { 2010 on_reply => sub {
1538 my ($ns, $msg) = @_; 2011 my ($ns, $msg) = @_;
1539 2012
1540 # this weird shuffling is so that direct followup queries 2013 # this weird shuffling is so that direct followup queries
1541 # get handled first 2014 # get handled first
1542 my $queue = delete $ns->{query_queue}; 2015 my $queue = delete $ns->{query_queue}
2016 or return; # be conservative, not sure how that can happen, but we saw a crash here
1543 2017
1544 (shift @$queue)->[1]->($msg); 2018 (shift @$queue)->[1]->($msg);
2019 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545 2020
1546 push @{ $ns->{query_queue} }, @$queue; 2021 push @{ $ns->{query_queue} }, @$queue;
1547 2022
1548 if (@{ $ns->{query_queue} } == @$queue) { 2023 if (@{ $ns->{query_queue} } == @$queue) {
1549 if (@$queue) { 2024 if (@$queue) {
1553 } 2028 }
1554 } 2029 }
1555 }, 2030 },
1556); 2031);
1557 2032
1558=item $client->coro (\&cb) 2033=item $client->async (\&cb)
1559 2034
1560Create a new coroutine, running the specified callback. The coroutine will 2035Create a new coroutine, running the specified callback. The coroutine will
1561be automatically cancelled when the client gets destroyed (e.g. on logout, 2036be automatically cancelled when the client gets destroyed (e.g. on logout,
1562or loss of connection). 2037or loss of connection).
1563 2038
1564=cut 2039=cut
1565 2040
1566sub cf::client::coro { 2041sub cf::client::async {
1567 my ($self, $cb) = @_; 2042 my ($self, $cb) = @_;
1568 2043
1569 my $coro; $coro = async { 2044 my $coro = &Coro::async ($cb);
1570 eval {
1571 $cb->();
1572 };
1573 warn $@ if $@;
1574 };
1575 2045
1576 $coro->on_destroy (sub { 2046 $coro->on_destroy (sub {
1577 delete $self->{_coro}{$coro+0}; 2047 delete $self->{_coro}{$coro+0};
1578 }); 2048 });
1579 2049
1715The parameter C<$family> should best start with the name of the extension 2185The parameter C<$family> should best start with the name of the extension
1716using it, it should be unique. 2186using it, it should be unique.
1717 2187
1718=over 4 2188=over 4
1719 2189
1720=item $hashref = cf::db_get $family
1721
1722Return a hashref for use by the extension C<$family>, which can be
1723modified. After modifications, you have to call C<cf::db_dirty> or
1724C<cf::db_sync>.
1725
1726=item $value = cf::db_get $family => $key 2190=item $value = cf::db_get $family => $key
1727 2191
1728Returns a single value from the database 2192Returns a single value from the database.
1729
1730=item cf::db_put $family => $hashref
1731
1732Stores the given family hashref into the database. Updates are delayed, if
1733you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734 2193
1735=item cf::db_put $family => $key => $value 2194=item cf::db_put $family => $key => $value
1736 2195
1737Stores the given C<$value> in the family hash. Updates are delayed, if you 2196Stores the given C<$value> in the family.
1738want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740=item cf::db_dirty
1741
1742Marks the database as dirty, to be updated at a later time.
1743
1744=item cf::db_sync
1745
1746Immediately write the database to disk I<if it is dirty>.
1747 2197
1748=cut 2198=cut
1749 2199
1750our $DB; 2200our $DB;
1751 2201
1752{ 2202unless ($DB) {
2203 $DB = BDB::db_create $DB_ENV;
2204
2205 cf::sync_job {
2206 eval {
2207 $DB->set_flags (BDB::CHKSUM);
2208
2209 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2210 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2211 cf::cleanup "db_open(db): $!" if $!;
2212 };
2213 cf::cleanup "db_open(db): $@" if $@;
2214 };
2215
1753 my $path = cf::localdir . "/database.pst"; 2216 my $path = cf::localdir . "/database.pst";
2217 if (stat $path) {
2218 cf::sync_job {
2219 my $pst = Storable::retrieve $path;
1754 2220
1755 sub db_load() { 2221 cf::db_put (board => data => $pst->{board});
1756 warn "loading database $path\n";#d# remove later 2222 cf::db_put (guildrules => data => $pst->{guildrules});
1757 $DB = stat $path ? Storable::retrieve $path : { }; 2223 cf::db_put (rent => balance => $pst->{rent}{balance});
1758 } 2224 BDB::db_env_txn_checkpoint $DB_ENV;
1759 2225
1760 my $pid; 2226 unlink $path;
1761
1762 sub db_save() {
1763 warn "saving database $path\n";#d# remove later
1764 waitpid $pid, 0 if $pid;
1765 if (0 == ($pid = fork)) {
1766 $DB->{_meta}{version} = 1;
1767 Storable::nstore $DB, "$path~";
1768 rename "$path~", $path;
1769 cf::_exit 0 if defined $pid;
1770 } 2227 };
1771 }
1772
1773 my $dirty;
1774
1775 sub db_sync() {
1776 db_save if $dirty;
1777 undef $dirty;
1778 }
1779
1780 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781 db_sync;
1782 }); 2228 }
2229}
1783 2230
1784 sub db_dirty() {
1785 $dirty = 1;
1786 $idle->start;
1787 }
1788
1789 sub db_get($;$) { 2231sub db_get($$) {
1790 @_ >= 2 2232 my $key = "$_[0]/$_[1]";
1791 ? $DB->{$_[0]}{$_[1]}
1792 : ($DB->{$_[0]} ||= { })
1793 }
1794 2233
2234 cf::sync_job {
2235 BDB::db_get $DB, undef, $key, my $data;
2236
2237 $! ? ()
2238 : Compress::LZF::sthaw $data
2239 }
2240}
2241
1795 sub db_put($$;$) { 2242sub db_put($$$) {
1796 if (@_ >= 3) { 2243 BDB::dbreq_pri 4;
1797 $DB->{$_[0]}{$_[1]} = $_[2]; 2244 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1798 } else {
1799 $DB->{$_[0]} = $_[1];
1800 }
1801 db_dirty;
1802 }
1803
1804 cf::global->attach (
1805 prio => 10000,
1806 on_cleanup => sub {
1807 db_sync;
1808 },
1809 );
1810} 2245}
1811 2246
1812############################################################################# 2247#############################################################################
1813# the server's main() 2248# the server's init and main functions
2249
2250sub load_resources {
2251 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2252 or die "unable to load regions file\n";#d#
2253}
1814 2254
1815sub cfg_load { 2255sub cfg_load {
1816 open my $fh, "<:utf8", cf::confdir . "/config" 2256 open my $fh, "<:utf8", cf::confdir . "/config"
1817 or return; 2257 or return;
1818 2258
1819 local $/; 2259 local $/;
1820 *CFG = YAML::Syck::Load <$fh>; 2260 *CFG = YAML::Syck::Load <$fh>;
2261
2262 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2263
2264 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2265 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2266
2267 if (exists $CFG{mlockall}) {
2268 eval {
2269 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2270 and die "WARNING: m(un)lockall failed: $!\n";
2271 };
2272 warn $@ if $@;
2273 }
2274}
2275
2276sub init {
2277 load_resources;
1821} 2278}
1822 2279
1823sub main { 2280sub main {
1824 # we must not ever block the main coroutine 2281 # we must not ever block the main coroutine
1825 local $Coro::idle = sub { 2282 local $Coro::idle = sub {
1826 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 2283 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827 (Coro::unblock_sub { 2284 (async {
1828 Event::one_event; 2285 Event::one_event;
1829 })->(); 2286 })->prio (Coro::PRIO_MAX);
1830 }; 2287 };
1831 2288
1832 cfg_load; 2289 cfg_load;
1833 db_load;
1834 load_extensions; 2290 load_extensions;
2291
2292 $TICK_WATCHER->start;
1835 Event::loop; 2293 Event::loop;
1836} 2294}
1837 2295
1838############################################################################# 2296#############################################################################
1839# initialisation 2297# initialisation and cleanup
2298
2299# install some emergency cleanup handlers
2300BEGIN {
2301 for my $signal (qw(INT HUP TERM)) {
2302 Event->signal (
2303 reentrant => 0,
2304 data => WF_AUTOCANCEL,
2305 signal => $signal,
2306 prio => 0,
2307 cb => sub {
2308 cf::cleanup "SIG$signal";
2309 },
2310 );
2311 }
2312}
2313
2314sub emergency_save() {
2315 my $freeze_guard = cf::freeze_mainloop;
2316
2317 warn "enter emergency perl save\n";
2318
2319 cf::sync_job {
2320 # use a peculiar iteration method to avoid tripping on perl
2321 # refcount bugs in for. also avoids problems with players
2322 # and maps saved/destroyed asynchronously.
2323 warn "begin emergency player save\n";
2324 for my $login (keys %cf::PLAYER) {
2325 my $pl = $cf::PLAYER{$login} or next;
2326 $pl->valid or next;
2327 $pl->save;
2328 }
2329 warn "end emergency player save\n";
2330
2331 warn "begin emergency map save\n";
2332 for my $path (keys %cf::MAP) {
2333 my $map = $cf::MAP{$path} or next;
2334 $map->valid or next;
2335 $map->save;
2336 }
2337 warn "end emergency map save\n";
2338
2339 warn "begin emergency database checkpoint\n";
2340 BDB::db_env_txn_checkpoint $DB_ENV;
2341 warn "end emergency database checkpoint\n";
2342 };
2343
2344 warn "leave emergency perl save\n";
2345}
1840 2346
1841sub reload() { 2347sub reload() {
1842 # can/must only be called in main 2348 # can/must only be called in main
1843 if ($Coro::current != $Coro::main) { 2349 if ($Coro::current != $Coro::main) {
1844 warn "can only reload from main coroutine\n"; 2350 warn "can only reload from main coroutine";
1845 return; 2351 return;
1846 } 2352 }
1847 2353
1848 warn "reloading..."; 2354 warn "reloading...";
1849 2355
1850 local $FREEZE = 1; 2356 warn "cancelling server ticker";
2357 $TICK_WATCHER->cancel;
2358
1851 cf::emergency_save; 2359 cf::emergency_save;
1852 2360
1853 eval { 2361 eval {
1854 # if anything goes wrong in here, we should simply crash as we already saved 2362 # if anything goes wrong in here, we should simply crash as we already saved
1855 2363
1856 # cancel all watchers 2364 warn "cancelling all WF_AUTOCANCEL watchers";
1857 for (Event::all_watchers) { 2365 for (Event::all_watchers) {
1858 $_->cancel if $_->data & WF_AUTOCANCEL; 2366 $_->cancel if $_->data & WF_AUTOCANCEL;
1859 } 2367 }
1860 2368
2369 warn "syncing database to disk";
2370 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2371
2372 warn "flushing outstanding aio requests";
2373 for (;;) {
2374 BDB::flush;
2375 IO::AIO::flush;
2376 Coro::cede;
2377 last unless IO::AIO::nreqs || BDB::nreqs;
2378 warn "iterate...";
2379 }
2380
1861 # cancel all extension coros 2381 warn "cancelling all extension coros";
1862 $_->cancel for values %EXT_CORO; 2382 $_->cancel for values %EXT_CORO;
1863 %EXT_CORO = (); 2383 %EXT_CORO = ();
1864 2384
1865 # unload all extensions 2385 warn "removing commands";
1866 for (@exts) { 2386 %COMMAND = ();
2387
2388 warn "removing ext commands";
2389 %EXTCMD = ();
2390
2391 warn "unloading/nuking all extensions";
2392 for my $pkg (@EXTS) {
1867 warn "unloading <$_>"; 2393 warn "... unloading $pkg";
1868 unload_extension $_; 2394
2395 if (my $cb = $pkg->can ("unload")) {
2396 eval {
2397 $cb->($pkg);
2398 1
2399 } or warn "$pkg unloaded, but with errors: $@";
1869 } 2400 }
1870 2401
2402 warn "... nuking $pkg";
2403 Symbol::delete_package $pkg;
2404 }
2405
1871 # unload all modules loaded from $LIBDIR 2406 warn "unloading all perl modules loaded from $LIBDIR";
1872 while (my ($k, $v) = each %INC) { 2407 while (my ($k, $v) = each %INC) {
1873 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2408 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874 2409
1875 warn "removing <$k>"; 2410 warn "... unloading $k";
1876 delete $INC{$k}; 2411 delete $INC{$k};
1877 2412
1878 $k =~ s/\.pm$//; 2413 $k =~ s/\.pm$//;
1879 $k =~ s/\//::/g; 2414 $k =~ s/\//::/g;
1880 2415
1883 } 2418 }
1884 2419
1885 Symbol::delete_package $k; 2420 Symbol::delete_package $k;
1886 } 2421 }
1887 2422
1888 # sync database to disk
1889 cf::db_sync;
1890 IO::AIO::flush;
1891
1892 # get rid of safe::, as good as possible 2423 warn "getting rid of safe::, as good as possible";
1893 Symbol::delete_package "safe::$_" 2424 Symbol::delete_package "safe::$_"
1894 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2425 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895 2426
1896 # remove register_script_function callbacks
1897 # TODO
1898
1899 # unload cf.pm "a bit" 2427 warn "unloading cf.pm \"a bit\"";
1900 delete $INC{"cf.pm"}; 2428 delete $INC{"cf.pm"};
1901 2429
1902 # don't, removes xs symbols, too, 2430 # don't, removes xs symbols, too,
1903 # and global variables created in xs 2431 # and global variables created in xs
1904 #Symbol::delete_package __PACKAGE__; 2432 #Symbol::delete_package __PACKAGE__;
1905 2433
1906 # reload cf.pm 2434 warn "unload completed, starting to reload now";
2435
1907 warn "reloading cf.pm"; 2436 warn "reloading cf.pm";
1908 require cf; 2437 require cf;
1909 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2438 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910 2439
1911 # load config and database again 2440 warn "loading config and database again";
1912 cf::cfg_load; 2441 cf::cfg_load;
1913 cf::db_load;
1914 2442
1915 # load extensions
1916 warn "load extensions"; 2443 warn "loading extensions";
1917 cf::load_extensions; 2444 cf::load_extensions;
1918 2445
1919 # reattach attachments to objects 2446 warn "reattaching attachments to objects/players";
1920 warn "reattach";
1921 _global_reattach; 2447 _global_reattach;
2448 warn "reattaching attachments to maps";
2449 reattach $_ for values %MAP;
2450
2451 warn "loading reloadable resources";
2452 load_resources;
2453
2454 warn "restarting server ticker";
2455
2456 $TICK_WATCHER->start;
1922 }; 2457 };
1923 2458
1924 if ($@) { 2459 if ($@) {
1925 warn $@; 2460 warn $@;
1926 warn "error while reloading, exiting."; 2461 warn "error while reloading, exiting.";
1927 exit 1; 2462 exit 1;
1928 } 2463 }
1929 2464
1930 warn "reloaded successfully"; 2465 warn "reloaded";
1931}; 2466};
1932 2467
1933############################################################################# 2468our $RELOAD_WATCHER; # used only during reload
1934
1935unless ($LINK_MAP) {
1936 $LINK_MAP = cf::map::new;
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} = $LINK_MAP;
1974}
1975
1976register "<global>", __PACKAGE__;
1977 2469
1978register_command "reload" => sub { 2470register_command "reload" => sub {
1979 my ($who, $arg) = @_; 2471 my ($who, $arg) = @_;
1980 2472
1981 if ($who->flag (FLAG_WIZ)) { 2473 if ($who->flag (FLAG_WIZ)) {
1982 $who->message ("start of reload."); 2474 $who->message ("reloading server.");
2475
2476 # doing reload synchronously and two reloads happen back-to-back,
2477 # coro crashes during coro_state_free->destroy here.
2478
2479 $RELOAD_WATCHER ||= Event->timer (
2480 reentrant => 0,
2481 after => 0,
2482 data => WF_AUTOCANCEL,
2483 cb => sub {
1983 reload; 2484 reload;
1984 $who->message ("end of reload."); 2485 undef $RELOAD_WATCHER;
2486 },
2487 );
1985 } 2488 }
1986}; 2489};
1987 2490
1988unshift @INC, $LIBDIR; 2491unshift @INC, $LIBDIR;
2492
2493my $bug_warning = 0;
1989 2494
1990$TICK_WATCHER = Event->timer ( 2495$TICK_WATCHER = Event->timer (
1991 reentrant => 0, 2496 reentrant => 0,
2497 parked => 1,
1992 prio => 0, 2498 prio => 0,
1993 at => $NEXT_TICK || $TICK, 2499 at => $NEXT_TICK || $TICK,
1994 data => WF_AUTOCANCEL, 2500 data => WF_AUTOCANCEL,
1995 cb => sub { 2501 cb => sub {
1996 unless ($FREEZE) { 2502 if ($Coro::current != $Coro::main) {
2503 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2504 unless ++$bug_warning > 10;
2505 return;
2506 }
2507
2508 $NOW = Event::time;
2509
1997 cf::server_tick; # one server iteration 2510 cf::server_tick; # one server iteration
1998 $RUNTIME += $TICK; 2511 $RUNTIME += $TICK;
1999 }
2000
2001 $NEXT_TICK += $TICK; 2512 $NEXT_TICK += $TICK;
2513
2514 $WAIT_FOR_TICK->broadcast;
2515 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2516
2517 Event::sweep;
2518 Coro::cede_notself;
2519
2520# my $AFTER = Event::time;
2521# warn $AFTER - $NOW;#d#
2002 2522
2003 # if we are delayed by four ticks or more, skip them all 2523 # if we are delayed by four ticks or more, skip them all
2004 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2524 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005 2525
2006 $TICK_WATCHER->at ($NEXT_TICK); 2526 $TICK_WATCHER->at ($NEXT_TICK);
2007 $TICK_WATCHER->start; 2527 $TICK_WATCHER->start;
2008 }, 2528 },
2009); 2529);
2010 2530
2531{
2532 BDB::max_poll_time $TICK * 0.1;
2533 $BDB_POLL_WATCHER = Event->io (
2534 reentrant => 0,
2535 fd => BDB::poll_fileno,
2536 poll => 'r',
2537 prio => 0,
2538 data => WF_AUTOCANCEL,
2539 cb => \&BDB::poll_cb,
2540 );
2541 BDB::min_parallel 8;
2542
2543 BDB::set_sync_prepare {
2544 my $status;
2545 my $current = $Coro::current;
2546 (
2547 sub {
2548 $status = $!;
2549 $current->ready; undef $current;
2550 },
2551 sub {
2552 Coro::schedule while defined $current;
2553 $! = $status;
2554 },
2555 )
2556 };
2557
2558 unless ($DB_ENV) {
2559 $DB_ENV = BDB::db_env_create;
2560
2561 cf::sync_job {
2562 eval {
2563 BDB::db_env_open
2564 $DB_ENV,
2565 $BDB_ENV_DIR,
2566 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2567 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2568 0666;
2569
2570 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2571
2572 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2573 $DB_ENV->set_lk_detect;
2574 };
2575
2576 cf::cleanup "db_env_open(db): $@" if $@;
2577 };
2578 }
2579}
2580
2581{
2582 IO::AIO::min_parallel 8;
2583
2584 undef $Coro::AIO::WATCHER;
2011IO::AIO::max_poll_time $TICK * 0.2; 2585 IO::AIO::max_poll_time $TICK * 0.1;
2012 2586 $AIO_POLL_WATCHER = Event->io (
2013Event->io ( 2587 reentrant => 0,
2014 fd => IO::AIO::poll_fileno, 2588 fd => IO::AIO::poll_fileno,
2015 poll => 'r', 2589 poll => 'r',
2016 prio => 5, 2590 prio => 6,
2017 data => WF_AUTOCANCEL, 2591 data => WF_AUTOCANCEL,
2018 cb => \&IO::AIO::poll_cb, 2592 cb => \&IO::AIO::poll_cb,
2019); 2593 );
2594}
2020 2595
2021Event->timer ( 2596$WRITE_RUNTIME_WATCHER = Event->timer (
2597 reentrant => 0,
2022 data => WF_AUTOCANCEL, 2598 data => WF_AUTOCANCEL,
2023 after => 0, 2599 after => 1,
2024 interval => 10, 2600 interval => 10,
2025 cb => sub { 2601 prio => 6, # keep it lowest so it acts like a watchdog
2026 (Coro::unblock_sub { 2602 cb => Coro::unblock_sub {
2027 write_runtime 2603 write_runtime
2028 or warn "ERROR: unable to write runtime file: $!"; 2604 or warn "ERROR: unable to write runtime file: $!";
2029 })->();
2030 }, 2605 },
2031); 2606);
2032 2607
2608END { cf::emergency_save }
2609
20331 26101
2034 2611

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