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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC vs.
Revision 1.215 by root, Thu Feb 15 03:19:02 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 $NEXT_RUNTIME_WRITE; # when should the runtime file be written
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 };
279 $TICK_WATCHER->stop;
280 $guard
281}
282
283=item cf::async { BLOCK }
284
285Currently the same as Coro::async_pool, meaning you cannot use
286C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287thing you are allowed to do is call C<prio> on it.
288
289=cut
290
291BEGIN { *async = \&Coro::async_pool }
185 292
186=item cf::sync_job { BLOCK } 293=item cf::sync_job { BLOCK }
187 294
188The design of crossfire+ requires that the main coro ($Coro::main) is 295The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 296always able to handle events or runnable, as crossfire+ is only partly
203 # this is the main coro, too bad, we have to block 310 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 311 # till the operation succeeds, freezing the server :/
205 312
206 # TODO: use suspend/resume instead 313 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 314 # (but this is cancel-safe)
208 local $FREEZE = 1; 315 my $freeze_guard = freeze_mainloop;
209 316
210 my $busy = 1; 317 my $busy = 1;
211 my @res; 318 my @res;
212 319
213 (Coro::async { 320 (async {
214 @res = eval { $job->() }; 321 @res = eval { $job->() };
215 warn $@ if $@; 322 warn $@ if $@;
216 undef $busy; 323 undef $busy;
217 })->prio (Coro::PRIO_MAX); 324 })->prio (Coro::PRIO_MAX);
218 325
219 while ($busy) { 326 while ($busy) {
220 Coro::cede_notself; 327 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 328 }
223 329
224 wantarray ? @res : $res[0] 330 wantarray ? @res : $res[0]
225 } else { 331 } else {
226 # we are in another coroutine, how wonderful, everything just works 332 # we are in another coroutine, how wonderful, everything just works
227 333
228 $job->() 334 $job->()
229 } 335 }
230} 336}
231 337
232=item $coro = cf::coro { BLOCK } 338=item $coro = cf::async_ext { BLOCK }
233 339
234Creates and returns a new coro. This coro is automcatially being canceled 340Like async, but this coro is automatically being canceled when the
235when the extension calling this is being unloaded. 341extension calling this is being unloaded.
236 342
237=cut 343=cut
238 344
239sub coro(&) { 345sub async_ext(&) {
240 my $cb = shift; 346 my $cb = shift;
241 347
242 my $coro; $coro = async { 348 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 349
249 $coro->on_destroy (sub { 350 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 351 delete $EXT_CORO{$coro+0};
251 }); 352 });
252 $EXT_CORO{$coro+0} = $coro; 353 $EXT_CORO{$coro+0} = $coro;
258 my $runtime = cf::localdir . "/runtime"; 359 my $runtime = cf::localdir . "/runtime";
259 360
260 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 361 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261 or return; 362 or return;
262 363
364 my $value = $cf::RUNTIME + 90 + 10;
263 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 365 # 10 is the runtime save interval, for a monotonic clock
366 # 60 allows for the watchdog to kill the server.
367
264 (aio_write $fh, 0, (length $value), $value, 0) <= 0 368 (aio_write $fh, 0, (length $value), $value, 0) <= 0
265 and return; 369 and return;
266 370
371 # always fsync - this file is important
267 aio_fsync $fh 372 aio_fsync $fh
268 and return; 373 and return;
269 374
270 close $fh 375 close $fh
271 or return; 376 or return;
277} 382}
278 383
279=back 384=back
280 385
281=cut 386=cut
282
283#############################################################################
284
285package cf::path;
286
287sub new {
288 my ($class, $path, $base) = @_;
289
290 $path = $path->as_string if ref $path;
291
292 my $self = bless { }, $class;
293
294 # {... are special paths that are not touched
295 # ?xxx/... are special absolute paths
296 # ?random/... random maps
297 # /! non-realised random map exit
298 # /... normal maps
299 # ~/... per-player maps without a specific player (DO NOT USE)
300 # ~user/... per-player map of a specific user
301
302 if ($path =~ /^{/) {
303 # fine as it is
304 } elsif ($path =~ s{^\?random/}{}) {
305 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306 $self->{random} = cf::from_json $data;
307 } else {
308 if ($path =~ s{^~([^/]+)?}{}) {
309 $self->{user_rel} = 1;
310
311 if (defined $1) {
312 $self->{user} = $1;
313 } elsif ($base =~ m{^~([^/]+)/}) {
314 $self->{user} = $1;
315 } else {
316 warn "cannot resolve user-relative path without user <$path,$base>\n";
317 }
318 } elsif ($path =~ /^\//) {
319 # already absolute
320 } else {
321 $base =~ s{[^/]+/?$}{};
322 return $class->new ("$base/$path");
323 }
324
325 for ($path) {
326 redo if s{/\.?/}{/};
327 redo if s{/[^/]+/\.\./}{/};
328 }
329 }
330
331 $self->{path} = $path;
332
333 $self
334}
335
336# the name / primary key / in-game path
337sub as_string {
338 my ($self) = @_;
339
340 $self->{user_rel} ? "~$self->{user}$self->{path}"
341 : $self->{random} ? "?random/$self->{path}"
342 : $self->{path}
343}
344
345# the displayed name, this is a one way mapping
346sub visible_name {
347 my ($self) = @_;
348
349# if (my $rmp = $self->{random}) {
350# # todo: be more intelligent about this
351# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352# } else {
353 $self->as_string
354# }
355}
356
357# escape the /'s in the path
358sub _escaped_path {
359 # ∕ is U+2215
360 (my $path = $_[0]{path}) =~ s/\//∕/g;
361 $path
362}
363
364# the original (read-only) location
365sub load_path {
366 my ($self) = @_;
367
368 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369}
370
371# the temporary/swap location
372sub save_path {
373 my ($self) = @_;
374
375 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378}
379
380# the unique path, might be eq to save_path
381sub uniq_path {
382 my ($self) = @_;
383
384 $self->{user_rel} || $self->{random}
385 ? undef
386 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387}
388
389# return random map parameters, or undef
390sub random_map_params {
391 my ($self) = @_;
392
393 $self->{random}
394}
395
396# this is somewhat ugly, but style maps do need special treatment
397sub is_style_map {
398 $_[0]{path} =~ m{^/styles/}
399}
400
401package cf;
402 387
403############################################################################# 388#############################################################################
404 389
405=head2 ATTACHABLE OBJECTS 390=head2 ATTACHABLE OBJECTS
406 391
532our @CB_TYPE = (); # registry for type (cf-object class) based events 517our @CB_TYPE = (); # registry for type (cf-object class) based events
533our @CB_MAP = (); 518our @CB_MAP = ();
534 519
535my %attachment; 520my %attachment;
536 521
522sub cf::attachable::thawer_merge {
523 # simply override everything except _meta
524 local $_[0]{_meta};
525 %{$_[0]} = %{$_[1]};
526}
527
537sub _attach_cb($$$$) { 528sub _attach_cb($$$$) {
538 my ($registry, $event, $prio, $cb) = @_; 529 my ($registry, $event, $prio, $cb) = @_;
539 530
540 use sort 'stable'; 531 use sort 'stable';
541 532
712# object support 703# object support
713 704
714sub reattach { 705sub reattach {
715 # basically do the same as instantiate, without calling instantiate 706 # basically do the same as instantiate, without calling instantiate
716 my ($obj) = @_; 707 my ($obj) = @_;
708
709 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717 710
718 my $registry = $obj->registry; 711 my $registry = $obj->registry;
719 712
720 @$registry = (); 713 @$registry = ();
721 714
768 $filename, length $$rdata, scalar @$objs; 761 $filename, length $$rdata, scalar @$objs;
769 762
770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 763 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771 chmod SAVE_MODE, $fh; 764 chmod SAVE_MODE, $fh;
772 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 765 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773 aio_fsync $fh; 766 aio_fsync $fh if $cf::USE_FSYNC;
774 close $fh; 767 close $fh;
775 768
776 if (@$objs) { 769 if (@$objs) {
777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
779 my $data = Storable::nfreeze { version => 1, objs => $objs }; 772 my $data = Storable::nfreeze { version => 1, objs => $objs };
780 aio_write $fh, 0, (length $data), $data, 0; 773 aio_write $fh, 0, (length $data), $data, 0;
781 aio_fsync $fh; 774 aio_fsync $fh if $cf::USE_FSYNC;
782 close $fh; 775 close $fh;
783 aio_rename "$filename.pst~", "$filename.pst"; 776 aio_rename "$filename.pst~", "$filename.pst";
784 } 777 }
785 } else { 778 } else {
786 aio_unlink "$filename.pst"; 779 aio_unlink "$filename.pst";
792 } 785 }
793 } else { 786 } else {
794 aio_unlink $filename; 787 aio_unlink $filename;
795 aio_unlink "$filename.pst"; 788 aio_unlink "$filename.pst";
796 } 789 }
790
791 #d##TODO# nuke non .map-files if exist
792 if ($filename =~ s/\.map$//) {
793 aio_unlink $filename;
794 aio_unlink "$filename.pst";
795 }
797 } 796 }
798} 797}
799 798
800sub object_freezer_as_string { 799sub object_freezer_as_string {
801 my ($rdata, $objs) = @_; 800 my ($rdata, $objs) = @_;
807 806
808sub object_thawer_load { 807sub object_thawer_load {
809 my ($filename) = @_; 808 my ($filename) = @_;
810 809
811 my ($data, $av); 810 my ($data, $av);
811
812 #d#TODO remove .map if file does not exist
813 aio_stat $filename and $filename =~ s/\.map$//;
812 814
813 (aio_load $filename, $data) >= 0 815 (aio_load $filename, $data) >= 0
814 or return; 816 or return;
815 817
816 unless (aio_stat "$filename.pst") { 818 unless (aio_stat "$filename.pst") {
817 (aio_load "$filename.pst", $av) >= 0 819 (aio_load "$filename.pst", $av) >= 0
818 or return; 820 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 821 $av = eval { (Storable::thaw $av)->{objs} };
820 } 822 }
821 823
824 warn sprintf "loading %s (%d)\n",
825 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 826 return ($data, $av);
823} 827}
824 828
825############################################################################# 829#############################################################################
826# command handling &c 830# command handling &c
851=cut 855=cut
852 856
853sub register_extcmd { 857sub register_extcmd {
854 my ($name, $cb) = @_; 858 my ($name, $cb) = @_;
855 859
856 my $caller = caller;
857 #warn "registering extcmd '$name' to '$caller'";
858
859 $EXTCMD{$name} = [$cb, $caller]; 860 $EXTCMD{$name} = $cb;
860} 861}
861 862
862cf::player->attach ( 863cf::player->attach (
863 on_command => sub { 864 on_command => sub {
864 my ($pl, $name, $params) = @_; 865 my ($pl, $name, $params) = @_;
877 878
878 my $msg = eval { from_json $buf }; 879 my $msg = eval { from_json $buf };
879 880
880 if (ref $msg) { 881 if (ref $msg) {
881 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 882 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882 if (my %reply = $cb->[0]->($pl, $msg)) { 883 if (my %reply = $cb->($pl, $msg)) {
883 $pl->ext_reply ($msg->{msgid}, %reply); 884 $pl->ext_reply ($msg->{msgid}, %reply);
884 } 885 }
885 } 886 }
886 } else { 887 } else {
887 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 888 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889 890
890 cf::override; 891 cf::override;
891 }, 892 },
892); 893);
893 894
894sub register {
895 my ($base, $pkg) = @_;
896
897 #TODO
898}
899
900sub load_extension { 895sub load_extension {
901 my ($path) = @_; 896 my ($path) = @_;
902 897
903 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 898 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
904 my $base = $1; 899 my $base = $1;
905 my $pkg = $1; 900 my $pkg = $1;
906 $pkg =~ s/[^[:word:]]/_/g; 901 $pkg =~ s/[^[:word:]]/_/g;
907 $pkg = "ext::$pkg"; 902 $pkg = "ext::$pkg";
908 903
909 warn "loading '$path' into '$pkg'\n"; 904 warn "... loading '$path' into '$pkg'\n";
910 905
911 open my $fh, "<:utf8", $path 906 open my $fh, "<:utf8", $path
912 or die "$path: $!"; 907 or die "$path: $!";
913 908
914 my $source = 909 my $source =
915 "package $pkg; use strict; use utf8;\n" 910 "package $pkg; use strict; use utf8;\n"
916 . "#line 1 \"$path\"\n{\n" 911 . "#line 1 \"$path\"\n{\n"
917 . (do { local $/; <$fh> }) 912 . (do { local $/; <$fh> })
918 . "\n};\n1"; 913 . "\n};\n1";
919 914
920 eval $source 915 unless (eval $source) {
921 or die $@ ? "$path: $@\n" 916 my $msg = $@ ? "$path: $@\n"
922 : "extension disabled.\n"; 917 : "extension disabled.\n";
923 918 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924 push @exts, $pkg; 919 warn $@;
925 $ext_pkg{$base} = $pkg; 920 warn "mandatory extension failed to load, exiting.\n";
926 921 exit 1;
927# no strict 'refs'; 922 }
928# @{"$pkg\::ISA"} = ext::; 923 die $@;
929
930 register $base, $pkg;
931}
932
933sub unload_extension {
934 my ($pkg) = @_;
935
936 warn "removing extension $pkg\n";
937
938 # remove hooks
939 #TODO
940# for my $idx (0 .. $#PLUGIN_EVENT) {
941# delete $hook[$idx]{$pkg};
942# } 924 }
943 925
944 # remove commands 926 push @EXTS, $pkg;
945 for my $name (keys %COMMAND) {
946 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948 if (@cb) {
949 $COMMAND{$name} = \@cb;
950 } else {
951 delete $COMMAND{$name};
952 }
953 }
954
955 # remove extcmds
956 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957 delete $EXTCMD{$name};
958 }
959
960 if (my $cb = $pkg->can ("unload")) {
961 eval {
962 $cb->($pkg);
963 1
964 } or warn "$pkg unloaded, but with errors: $@";
965 }
966
967 Symbol::delete_package $pkg;
968} 927}
969 928
970sub load_extensions { 929sub load_extensions {
971 for my $ext (<$LIBDIR/*.ext>) { 930 for my $ext (<$LIBDIR/*.ext>) {
972 next unless -r $ext; 931 next unless -r $ext;
976 } or warn "$ext not loaded: $@"; 935 } or warn "$ext not loaded: $@";
977 } 936 }
978} 937}
979 938
980############################################################################# 939#############################################################################
981# load/save/clean perl data associated with a map
982
983*cf::mapsupport::on_clean = sub {
984 my ($map) = @_;
985
986 my $path = $map->tmpname;
987 defined $path or return;
988
989 unlink "$path.pst";
990};
991
992cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994#############################################################################
995# load/save perl data associated with player->ob objects
996
997sub all_objects(@) {
998 @_, map all_objects ($_->inv), @_
999}
1000
1001# TODO: compatibility cruft, remove when no longer needed
1002cf::player->attach (
1003 on_load => sub {
1004 my ($pl, $path) = @_;
1005
1006 for my $o (all_objects $pl->ob) {
1007 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008 $o->set_ob_key_value ("_perl_data");
1009
1010 %$o = %{ Storable::thaw pack "H*", $value };
1011 }
1012 }
1013 },
1014);
1015
1016#############################################################################
1017 940
1018=head2 CORE EXTENSIONS 941=head2 CORE EXTENSIONS
1019 942
1020Functions and methods that extend core crossfire objects. 943Functions and methods that extend core crossfire objects.
1021 944
945=cut
946
947package cf::player;
948
949use Coro::AIO;
950
1022=head3 cf::player 951=head3 cf::player
1023 952
1024=over 4 953=over 4
1025 954
1026=item cf::player::exists $login 955=item cf::player::find $login
1027 956
1028Returns true when the given account exists. 957Returns the given player object, loading it if necessary (might block).
1029 958
1030=cut 959=cut
1031 960
1032sub cf::player::exists($) { 961sub playerdir($) {
1033 cf::player::find $_[0] 962 cf::localdir
1034 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 963 . "/"
964 . cf::playerdir
965 . "/"
966 . (ref $_[0] ? $_[0]->ob->name : $_[0])
967}
968
969sub path($) {
970 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
971
972 (playerdir $login) . "/$login.pl"
973}
974
975sub find_active($) {
976 $cf::PLAYER{$_[0]}
977 and $cf::PLAYER{$_[0]}->active
978 and $cf::PLAYER{$_[0]}
979}
980
981sub exists($) {
982 my ($login) = @_;
983
984 $cf::PLAYER{$login}
985 or cf::sync_job { !aio_stat path $login }
986}
987
988sub find($) {
989 return $cf::PLAYER{$_[0]} || do {
990 my $login = $_[0];
991
992 my $guard = cf::lock_acquire "user_find:$login";
993
994 $cf::PLAYER{$_[0]} || do {
995 my $pl = load_pl path $login
996 or return;
997 $cf::PLAYER{$login} = $pl
998 }
999 }
1000}
1001
1002sub save($) {
1003 my ($pl) = @_;
1004
1005 return if $pl->{deny_save};
1006
1007 my $path = path $pl;
1008 my $guard = cf::lock_acquire "user_save:$path";
1009
1010 return if $pl->{deny_save};
1011
1012 aio_mkdir playerdir $pl, 0770;
1013 $pl->{last_save} = $cf::RUNTIME;
1014
1015 $pl->save_pl ($path);
1016 Coro::cede;
1017}
1018
1019sub new($) {
1020 my ($login) = @_;
1021
1022 my $self = create;
1023
1024 $self->ob->name ($login);
1025 $self->{deny_save} = 1;
1026
1027 $cf::PLAYER{$login} = $self;
1028
1029 $self
1030}
1031
1032=item $pl->quit_character
1033
1034Nukes the player without looking back. If logged in, the connection will
1035be destroyed. May block for a long time.
1036
1037=cut
1038
1039sub quit_character {
1040 my ($pl) = @_;
1041
1042 $pl->{deny_save} = 1;
1043 $pl->password ("*"); # this should lock out the player until we nuked the dir
1044
1045 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1046 $pl->deactivate;
1047 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1048 $pl->ns->destroy if $pl->ns;
1049
1050 my $path = playerdir $pl;
1051 my $temp = "$path~$cf::RUNTIME~deleting~";
1052 aio_rename $path, $temp;
1053 delete $cf::PLAYER{$pl->ob->name};
1054 $pl->destroy;
1055 IO::AIO::aio_rmtree $temp;
1056}
1057
1058=item cf::player::list_logins
1059
1060Returns am arrayref of all valid playernames in the system, can take a
1061while and may block, so not sync_job-capable, ever.
1062
1063=cut
1064
1065sub list_logins {
1066 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1067 or return [];
1068
1069 my @logins;
1070
1071 for my $login (@$dirs) {
1072 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1073 aio_read $fh, 0, 512, my $buf, 0 or next;
1074 $buf !~ /^password -------------$/m or next; # official not-valid tag
1075
1076 utf8::decode $login;
1077 push @logins, $login;
1078 }
1079
1080 \@logins
1081}
1082
1083=item $player->maps
1084
1085Returns an arrayref of map paths that are private for this
1086player. May block.
1087
1088=cut
1089
1090sub maps($) {
1091 my ($pl) = @_;
1092
1093 $pl = ref $pl ? $pl->ob->name : $pl;
1094
1095 my $files = aio_readdir playerdir $pl
1096 or return;
1097
1098 my @paths;
1099
1100 for (@$files) {
1101 utf8::decode $_;
1102 next if /\.(?:pl|pst)$/;
1103 next unless /^$PATH_SEP/o;
1104
1105 push @paths, cf::map::normalise "~$pl/$_";
1106 }
1107
1108 \@paths
1035} 1109}
1036 1110
1037=item $player->ext_reply ($msgid, $msgtype, %msg) 1111=item $player->ext_reply ($msgid, $msgtype, %msg)
1038 1112
1039Sends an ext reply to the player. 1113Sends an ext reply to the player.
1040 1114
1041=cut 1115=cut
1042 1116
1043sub cf::player::ext_reply($$$%) { 1117sub ext_reply($$$%) {
1044 my ($self, $id, %msg) = @_; 1118 my ($self, $id, %msg) = @_;
1045 1119
1046 $msg{msgid} = $id; 1120 $msg{msgid} = $id;
1047 1121
1048 $self->send ("ext " . to_json \%msg); 1122 $self->send ("ext " . cf::to_json \%msg);
1049} 1123}
1124
1125package cf;
1050 1126
1051=back 1127=back
1052 1128
1053 1129
1054=head3 cf::map 1130=head3 cf::map
1060package cf::map; 1136package cf::map;
1061 1137
1062use Fcntl; 1138use Fcntl;
1063use Coro::AIO; 1139use Coro::AIO;
1064 1140
1141use overload
1142 '""' => \&as_string,
1143 fallback => 1;
1144
1065our $MAX_RESET = 7200; 1145our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1146our $DEFAULT_RESET = 3000;
1067 1147
1068sub generate_random_map { 1148sub generate_random_map {
1069 my ($path, $rmp) = @_; 1149 my ($self, $rmp) = @_;
1070
1071 # mit "rum" bekleckern, nicht 1150 # mit "rum" bekleckern, nicht
1072 cf::map::_create_random_map 1151 $self->_create_random_map (
1073 $path,
1074 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1152 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1153 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1154 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077 $rmp->{exit_on_final_map}, 1155 $rmp->{exit_on_final_map},
1078 $rmp->{xsize}, $rmp->{ysize}, 1156 $rmp->{xsize}, $rmp->{ysize},
1079 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1157 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1158 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1159 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1160 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1161 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084 (cf::region::find $rmp->{region}) 1162 (cf::region::find $rmp->{region}), $rmp->{custom}
1163 )
1164}
1165
1166=item cf::map->register ($regex, $prio)
1167
1168Register a handler for the map path matching the given regex at the
1169givne priority (higher is better, built-in handlers have priority 0, the
1170default).
1171
1172=cut
1173
1174sub register {
1175 my (undef, $regex, $prio) = @_;
1176 my $pkg = caller;
1177
1178 no strict;
1179 push @{"$pkg\::ISA"}, __PACKAGE__;
1180
1181 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1182}
1183
1184# also paths starting with '/'
1185$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1186
1187sub thawer_merge {
1188 my ($self, $merge) = @_;
1189
1190 # we have to keep some variables in memory intact
1191 local $self->{path};
1192 local $self->{load_path};
1193 local $self->{deny_save};
1194 local $self->{deny_reset};
1195
1196 $self->SUPER::thawer_merge ($merge);
1197}
1198
1199sub normalise {
1200 my ($path, $base) = @_;
1201
1202 $path = "$path"; # make sure its a string
1203
1204 $path =~ s/\.map$//;
1205
1206 # map plan:
1207 #
1208 # /! non-realised random map exit (special hack!)
1209 # {... are special paths that are not being touched
1210 # ?xxx/... are special absolute paths
1211 # ?random/... random maps
1212 # /... normal maps
1213 # ~user/... per-player map of a specific user
1214
1215 $path =~ s/$PATH_SEP/\//go;
1216
1217 # treat it as relative path if it starts with
1218 # something that looks reasonable
1219 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1220 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1221
1222 $base =~ s{[^/]+/?$}{};
1223 $path = "$base/$path";
1224 }
1225
1226 for ($path) {
1227 redo if s{//}{/};
1228 redo if s{/\.?/}{/};
1229 redo if s{/[^/]+/\.\./}{/};
1230 }
1231
1232 $path
1233}
1234
1235sub new_from_path {
1236 my (undef, $path, $base) = @_;
1237
1238 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1239
1240 $path = normalise $path, $base;
1241
1242 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1243 if ($path =~ $EXT_MAP{$pkg}[1]) {
1244 my $self = bless cf::map::new, $pkg;
1245 $self->{path} = $path; $self->path ($path);
1246 $self->init; # pass $1 etc.
1247 return $self;
1248 }
1249 }
1250
1251 Carp::carp "unable to resolve path '$path' (base '$base').";
1252 ()
1253}
1254
1255sub init {
1256 my ($self) = @_;
1257
1258 $self
1259}
1260
1261sub as_string {
1262 my ($self) = @_;
1263
1264 "$self->{path}"
1265}
1266
1267# the displayed name, this is a one way mapping
1268sub visible_name {
1269 &as_string
1270}
1271
1272# the original (read-only) location
1273sub load_path {
1274 my ($self) = @_;
1275
1276 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1277}
1278
1279# the temporary/swap location
1280sub save_path {
1281 my ($self) = @_;
1282
1283 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1284 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1285}
1286
1287# the unique path, undef == no special unique path
1288sub uniq_path {
1289 my ($self) = @_;
1290
1291 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1292 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1085} 1293}
1086 1294
1087# and all this just because we cannot iterate over 1295# and all this just because we cannot iterate over
1088# all maps in C++... 1296# all maps in C++...
1089sub change_all_map_light { 1297sub change_all_map_light {
1090 my ($change) = @_; 1298 my ($change) = @_;
1091 1299
1092 $_->change_map_light ($change) for values %cf::MAP; 1300 $_->change_map_light ($change)
1301 for grep $_->outdoor, values %cf::MAP;
1093} 1302}
1094 1303
1304sub unlink_save {
1305 my ($self) = @_;
1306
1307 utf8::encode (my $save = $self->save_path);
1308 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1309 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311 #d#TODO remove .map and also nuke
1312 $save =~ s/\.map// or return;#d#
1313 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1315}
1316
1095sub try_load_header($) { 1317sub load_header_from($) {
1096 my ($path) = @_; 1318 my ($self, $path) = @_;
1097 1319
1098 utf8::encode $path; 1320 utf8::encode $path;
1099 aio_open $path, O_RDONLY, 0 1321 #aio_open $path, O_RDONLY, 0
1322 # or return;
1323
1324 $self->_load_header ($path)
1100 or return; 1325 or return;
1101 1326
1102 my $map = cf::map::new 1327 $self->{load_path} = $path;
1328
1329 1
1330}
1331
1332sub load_header_orig {
1333 my ($self) = @_;
1334
1335 $self->load_header_from ($self->load_path)
1336}
1337
1338sub load_header_temp {
1339 my ($self) = @_;
1340
1341 $self->load_header_from ($self->save_path)
1342}
1343
1344sub prepare_temp {
1345 my ($self) = @_;
1346
1347 $self->last_access ((delete $self->{last_access})
1348 || $cf::RUNTIME); #d#
1349 # safety
1350 $self->{instantiate_time} = $cf::RUNTIME
1351 if $self->{instantiate_time} > $cf::RUNTIME;
1352}
1353
1354sub prepare_orig {
1355 my ($self) = @_;
1356
1357 $self->{load_original} = 1;
1358 $self->{instantiate_time} = $cf::RUNTIME;
1359 $self->last_access ($cf::RUNTIME);
1360 $self->instantiate;
1361}
1362
1363sub load_header {
1364 my ($self) = @_;
1365
1366 if ($self->load_header_temp) {
1367 $self->prepare_temp;
1368 } else {
1369 $self->load_header_orig
1103 or return; 1370 or return;
1371 $self->prepare_orig;
1372 }
1104 1373
1105 $map->load_header ($path) 1374 1
1106 or return;
1107
1108 $map->{load_path} = $path;
1109
1110 $map
1111} 1375}
1112 1376
1377sub find;
1113sub find_map { 1378sub find {
1114 my ($path, $origin) = @_; 1379 my ($path, $origin) = @_;
1115 1380
1116 #warn "find_map<$path,$origin>\n";#d#
1117
1118 $path = new cf::path $path, $origin && $origin->path; 1381 $path = normalise $path, $origin && $origin->path;
1119 my $key = $path->as_string;
1120 1382
1383 cf::lock_wait "map_find:$path";
1384
1121 $cf::MAP{$key} || do { 1385 $cf::MAP{$path} || do {
1122 # do it the slow way 1386 my $guard = cf::lock_acquire "map_find:$path";
1123 my $map = try_load_header $path->save_path; 1387 my $map = new_from_path cf::map $path
1124
1125 if ($map) {
1126 # safety
1127 $map->{instantiate_time} = $cf::RUNTIME
1128 if $map->{instantiate_time} > $cf::RUNTIME;
1129 } else {
1130 if (my $rmp = $path->random_map_params) {
1131 $map = generate_random_map $key, $rmp;
1132 } else {
1133 $map = try_load_header $path->load_path;
1134 }
1135
1136 $map or return; 1388 or return;
1137 1389
1138 $map->{load_original} = 1;
1139 $map->{instantiate_time} = $cf::RUNTIME;
1140 $map->instantiate;
1141
1142 # per-player maps become, after loading, normal maps
1143 $map->per_player (0) if $path->{user_rel};
1144 }
1145
1146 $map->path ($key);
1147 $map->{path} = $path;
1148 $map->last_access ($cf::RUNTIME); 1390 $map->{last_save} = $cf::RUNTIME;
1149 1391
1150 if ($map->should_reset) { 1392 $map->load_header
1393 or return;
1394
1395 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1396 # doing this can freeze the server in a sync job, obviously
1397 #$cf::WAIT_FOR_TICK->wait;
1151 $map->reset; 1398 $map->reset;
1152 $map = find_map $path; 1399 undef $guard;
1400 return find $path;
1153 } 1401 }
1154 1402
1155 $cf::MAP{$key} = $map 1403 $cf::MAP{$path} = $map
1156 } 1404 }
1157} 1405}
1406
1407sub pre_load { }
1408sub post_load { }
1158 1409
1159sub load { 1410sub load {
1160 my ($self) = @_; 1411 my ($self) = @_;
1161 1412
1413 local $self->{deny_reset} = 1; # loading can take a long time
1414
1415 my $path = $self->{path};
1416 my $guard = cf::lock_acquire "map_load:$path";
1417
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1418 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1419
1164 $self->in_memory (cf::MAP_LOADING); 1420 $self->in_memory (cf::MAP_LOADING);
1165 1421
1166 my $path = $self->{path};
1167
1168 $self->alloc; 1422 $self->alloc;
1423
1424 $self->pre_load;
1425
1169 $self->load_objects ($self->{load_path}, 1) 1426 $self->_load_objects ($self->{load_path}, 1)
1170 or return; 1427 or return;
1171 1428
1172 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1429 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173 if delete $self->{load_original}; 1430 if delete $self->{load_original};
1174 1431
1175 if (my $uniq = $path->uniq_path) { 1432 if (my $uniq = $self->uniq_path) {
1176 utf8::encode $uniq; 1433 utf8::encode $uniq;
1177 if (aio_open $uniq, O_RDONLY, 0) { 1434 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1435 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1436 $self->_load_objects ($uniq, 0);
1180 } 1437 }
1181 } 1438 }
1439
1440 Coro::cede;
1182 1441
1183 # now do the right thing for maps 1442 # now do the right thing for maps
1184 $self->link_multipart_objects; 1443 $self->link_multipart_objects;
1185 1444
1186 if ($self->{path}->is_style_map) { 1445 unless ($self->{deny_activate}) {
1187 $self->{deny_save} = 1; 1446 $self->decay_objects;
1188 $self->{deny_reset} = 1;
1189 } else {
1190 $self->fix_auto_apply; 1447 $self->fix_auto_apply;
1191 $self->decay_objects;
1192 $self->update_buttons; 1448 $self->update_buttons;
1449 Coro::cede;
1193 $self->set_darkness_map; 1450 $self->set_darkness_map;
1194 $self->difficulty ($self->estimate_difficulty) 1451 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1452 unless $self->difficulty;
1453 Coro::cede;
1196 $self->activate; 1454 $self->activate;
1197 } 1455 }
1198 1456
1457 $self->post_load;
1458
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1459 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1460}
1201 1461
1202sub load_map_sync { 1462sub customise_for {
1463 my ($self, $ob) = @_;
1464
1465 return find "~" . $ob->name . "/" . $self->{path}
1466 if $self->per_player;
1467
1468 $self
1469}
1470
1471# find and load all maps in the 3x3 area around a map
1472sub load_diag {
1473 my ($map) = @_;
1474
1475 my @diag; # diagonal neighbours
1476
1477 for (0 .. 3) {
1478 my $neigh = $map->tile_path ($_)
1479 or next;
1480 $neigh = find $neigh, $map
1481 or next;
1482 $neigh->load;
1483
1484 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1485 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1486 }
1487
1488 for (@diag) {
1489 my $neigh = find @$_
1490 or next;
1491 $neigh->load;
1492 }
1493}
1494
1495sub find_sync {
1203 my ($path, $origin) = @_; 1496 my ($path, $origin) = @_;
1204 1497
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1498 cf::sync_job { find $path, $origin }
1499}
1206 1500
1207 cf::sync_job { 1501sub do_load_sync {
1208 my $map = cf::map::find_map $path, $origin 1502 my ($map) = @_;
1209 or return; 1503
1504 cf::sync_job { $map->load };
1505}
1506
1507our %MAP_PREFETCH;
1508our $MAP_PREFETCHER = undef;
1509
1510sub find_async {
1511 my ($path, $origin) = @_;
1512
1513 $path = normalise $path, $origin && $origin->{path};
1514
1515 if (my $map = $cf::MAP{$path}) {
1516 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1517 }
1518
1519 undef $MAP_PREFETCH{$path};
1520 $MAP_PREFETCHER ||= cf::async {
1521 while (%MAP_PREFETCH) {
1522 for my $path (keys %MAP_PREFETCH) {
1523 my $map = find $path
1524 or next;
1210 $map->load; 1525 $map->load;
1211 $map 1526
1527 delete $MAP_PREFETCH{$path};
1528 }
1529 }
1530 undef $MAP_PREFETCHER;
1212 } 1531 };
1532 $MAP_PREFETCHER->prio (6);
1533
1534 ()
1213} 1535}
1214 1536
1215sub save { 1537sub save {
1216 my ($self) = @_; 1538 my ($self) = @_;
1217 1539
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1540 my $lock = cf::lock_acquire "map_data:" . $self->path;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1541
1221 $self->{last_save} = $cf::RUNTIME; 1542 $self->{last_save} = $cf::RUNTIME;
1222 1543
1223 return unless $self->dirty; 1544 return unless $self->dirty;
1224 1545
1546 my $save = $self->save_path; utf8::encode $save;
1547 my $uniq = $self->uniq_path; utf8::encode $uniq;
1548
1225 $self->{load_path} = $save; 1549 $self->{load_path} = $save;
1226 1550
1227 return if $self->{deny_save}; 1551 return if $self->{deny_save};
1228 1552
1553 local $self->{last_access} = $self->last_access;#d#
1554
1555 cf::async {
1556 $_->contr->save for $self->players;
1557 };
1558
1229 if ($uniq) { 1559 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1560 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1561 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1562 } else {
1233 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1563 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234 } 1564 }
1235} 1565}
1236 1566
1237sub swap_out { 1567sub swap_out {
1238 my ($self) = @_; 1568 my ($self) = @_;
1569
1570 # save first because save cedes
1571 $self->save;
1572
1573 my $lock = cf::lock_acquire "map_data:" . $self->path;
1239 1574
1240 return if $self->players; 1575 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1576 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1577 return if $self->{deny_save};
1243 1578
1244 $self->save;
1245 $self->clear; 1579 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1580 $self->in_memory (cf::MAP_SWAPPED);
1247} 1581}
1248 1582
1249sub reset_at { 1583sub reset_at {
1250 my ($self) = @_; 1584 my ($self) = @_;
1251 1585
1252 # TODO: safety, remove and allow resettable per-player maps 1586 # TODO: safety, remove and allow resettable per-player maps
1253 return 1e99 if $self->{path}{user_rel}; 1587 return 1e99 if $self->isa ("ext::map_per_player");#d#
1254 return 1e99 if $self->{deny_reset}; 1588 return 1e99 if $self->{deny_reset};
1255 1589
1256 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1590 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1591 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258 1592
1263 my ($self) = @_; 1597 my ($self) = @_;
1264 1598
1265 $self->reset_at <= $cf::RUNTIME 1599 $self->reset_at <= $cf::RUNTIME
1266} 1600}
1267 1601
1268sub unlink_save {
1269 my ($self) = @_;
1270
1271 utf8::encode (my $save = $self->{path}->save_path);
1272 aioreq_pri 3; IO::AIO::aio_unlink $save;
1273 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274}
1275
1276sub rename {
1277 my ($self, $new_path) = @_;
1278
1279 $self->unlink_save;
1280
1281 delete $cf::MAP{$self->path};
1282 $self->{path} = new cf::path $new_path;
1283 $self->path ($self->{path}->as_string);
1284 $cf::MAP{$self->path} = $self;
1285
1286 $self->save;
1287}
1288
1289sub reset { 1602sub reset {
1290 my ($self) = @_; 1603 my ($self) = @_;
1291 1604
1605 my $lock = cf::lock_acquire "map_data:$self->{path}";
1606
1292 return if $self->players; 1607 return if $self->players;
1293 return if $self->{path}{user_rel};#d# 1608 return if $self->isa ("ext::map_per_player");#d#
1294 1609
1295 warn "resetting map ", $self->path;#d# 1610 warn "resetting map ", $self->path;#d#
1296 1611
1612 $self->in_memory (cf::MAP_SWAPPED);
1613
1614 # need to save uniques path
1615 unless ($self->{deny_save}) {
1616 my $uniq = $self->uniq_path; utf8::encode $uniq;
1617
1618 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1619 if $uniq;
1620 }
1621
1297 delete $cf::MAP{$self->path}; 1622 delete $cf::MAP{$self->path};
1623
1624 $self->clear;
1298 1625
1299 $_->clear_links_to ($self) for values %cf::MAP; 1626 $_->clear_links_to ($self) for values %cf::MAP;
1300 1627
1301 $self->unlink_save; 1628 $self->unlink_save;
1302 $self->destroy; 1629 $self->destroy;
1305my $nuke_counter = "aaaa"; 1632my $nuke_counter = "aaaa";
1306 1633
1307sub nuke { 1634sub nuke {
1308 my ($self) = @_; 1635 my ($self) = @_;
1309 1636
1637 delete $cf::MAP{$self->path};
1638
1639 $self->unlink_save;
1640
1641 bless $self, "cf::map";
1642 delete $self->{deny_reset};
1310 $self->{deny_save} = 1; 1643 $self->{deny_save} = 1;
1311 $self->reset_timeout (1); 1644 $self->reset_timeout (1);
1312 $self->rename ("{nuke}/" . ($nuke_counter++)); 1645 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646
1647 $cf::MAP{$self->path} = $self;
1648
1313 $self->reset; # polite request, might not happen 1649 $self->reset; # polite request, might not happen
1314} 1650}
1315 1651
1316sub customise_for { 1652=item cf::map::unique_maps
1317 my ($map, $ob) = @_;
1318 1653
1319 if ($map->per_player) { 1654Returns an arrayref of paths of all shared maps that have
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1655instantiated unique items. May block.
1321 }
1322 1656
1323 $map 1657=cut
1324}
1325 1658
1326sub emergency_save { 1659sub unique_maps() {
1327 local $cf::FREEZE = 1; 1660 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1661 or return;
1328 1662
1329 warn "enter emergency map save\n"; 1663 my @paths;
1330 1664
1331 cf::sync_job { 1665 for (@$files) {
1332 warn "begin emergency map save\n"; 1666 utf8::decode $_;
1333 $_->save for values %cf::MAP; 1667 next if /\.pst$/;
1668 next unless /^$PATH_SEP/o;
1669
1670 push @paths, cf::map::normalise $_;
1334 }; 1671 }
1335 1672
1336 warn "end emergency map save\n"; 1673 \@paths
1337} 1674}
1338 1675
1339package cf; 1676package cf;
1340 1677
1341=back 1678=back
1342 1679
1680=head3 cf::object
1681
1682=cut
1683
1684package cf::object;
1685
1686=over 4
1687
1688=item $ob->inv_recursive
1689
1690Returns the inventory of the object _and_ their inventories, recursively.
1691
1692=cut
1693
1694sub inv_recursive_;
1695sub inv_recursive_ {
1696 map { $_, inv_recursive_ $_->inv } @_
1697}
1698
1699sub inv_recursive {
1700 inv_recursive_ inv $_[0]
1701}
1702
1703package cf;
1704
1705=back
1343 1706
1344=head3 cf::object::player 1707=head3 cf::object::player
1345 1708
1346=over 4 1709=over 4
1347 1710
1387 1750
1388=item $player_object->enter_link 1751=item $player_object->enter_link
1389 1752
1390Freezes the player and moves him/her to a special map (C<{link}>). 1753Freezes the player and moves him/her to a special map (C<{link}>).
1391 1754
1392The player should be reaosnably safe there for short amounts of time. You 1755The player should be reasonably safe there for short amounts of time. You
1393I<MUST> call C<leave_link> as soon as possible, though. 1756I<MUST> call C<leave_link> as soon as possible, though.
1394 1757
1758Will never block.
1759
1395=item $player_object->leave_link ($map, $x, $y) 1760=item $player_object->leave_link ($map, $x, $y)
1396 1761
1397Moves the player out of the specila link map onto the given map. If the 1762Moves the player out of the special C<{link}> map onto the specified
1398map is not valid (or omitted), the player will be moved back to the 1763map. If the map is not valid (or omitted), the player will be moved back
1399location he/she was before the call to C<enter_link>, or, if that fails, 1764to the location he/she was before the call to C<enter_link>, or, if that
1400to the emergency map position. 1765fails, to the emergency map position.
1401 1766
1402Might block. 1767Might block.
1403 1768
1404=cut 1769=cut
1770
1771sub link_map {
1772 unless ($LINK_MAP) {
1773 $LINK_MAP = cf::map::find "{link}"
1774 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1775 $LINK_MAP->load;
1776 }
1777
1778 $LINK_MAP
1779}
1405 1780
1406sub cf::object::player::enter_link { 1781sub cf::object::player::enter_link {
1407 my ($self) = @_; 1782 my ($self) = @_;
1408 1783
1409 return if $self->map == $LINK_MAP; 1784 $self->deactivate_recursive;
1410 1785
1786 return if UNIVERSAL::isa $self->map, "ext::map_link";
1787
1411 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1788 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1412 if $self->map; 1789 if $self->map;
1413 1790
1414 $self->enter_map ($LINK_MAP, 20, 20); 1791 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1415 $self->deactivate_recursive;
1416} 1792}
1417 1793
1418sub cf::object::player::leave_link { 1794sub cf::object::player::leave_link {
1419 my ($self, $map, $x, $y) = @_; 1795 my ($self, $map, $x, $y) = @_;
1420 1796
1421 my $link_pos = delete $self->{_link_pos}; 1797 my $link_pos = delete $self->{_link_pos};
1422 1798
1423 unless ($map) { 1799 unless ($map) {
1424 # restore original map position 1800 # restore original map position
1425 ($map, $x, $y) = @{ $link_pos || [] }; 1801 ($map, $x, $y) = @{ $link_pos || [] };
1426 $map = cf::map::find_map $map; 1802 $map = cf::map::find $map;
1427 1803
1428 unless ($map) { 1804 unless ($map) {
1429 ($map, $x, $y) = @$EMERGENCY_POSITION; 1805 ($map, $x, $y) = @$EMERGENCY_POSITION;
1430 $map = cf::map::find_map $map 1806 $map = cf::map::find $map
1431 or die "FATAL: cannot load emergency map\n"; 1807 or die "FATAL: cannot load emergency map\n";
1432 } 1808 }
1433 } 1809 }
1434 1810
1435 ($x, $y) = (-1, -1) 1811 ($x, $y) = (-1, -1)
1438 # use -1 or undef as default coordinates, not 0, 0 1814 # use -1 or undef as default coordinates, not 0, 0
1439 ($x, $y) = ($map->enter_x, $map->enter_y) 1815 ($x, $y) = ($map->enter_x, $map->enter_y)
1440 if $x <=0 && $y <= 0; 1816 if $x <=0 && $y <= 0;
1441 1817
1442 $map->load; 1818 $map->load;
1819 $map->load_diag;
1443 1820
1821 return unless $self->contr->active;
1444 $self->activate_recursive; 1822 $self->activate_recursive;
1823
1824 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1445 $self->enter_map ($map, $x, $y); 1825 $self->enter_map ($map, $x, $y);
1446} 1826}
1447 1827
1828cf::player->attach (
1829 on_logout => sub {
1830 my ($pl) = @_;
1831
1832 # abort map switching before logout
1833 if ($pl->ob->{_link_pos}) {
1834 cf::sync_job {
1835 $pl->ob->leave_link
1836 };
1837 }
1838 },
1839 on_login => sub {
1840 my ($pl) = @_;
1841
1842 # try to abort aborted map switching on player login :)
1843 # should happen only on crashes
1844 if ($pl->ob->{_link_pos}) {
1845 $pl->ob->enter_link;
1846 (async {
1847 $pl->ob->reply (undef,
1848 "There was an internal problem at your last logout, "
1849 . "the server will try to bring you to your intended destination in a second.",
1850 cf::NDI_RED);
1851 # we need this sleep as the login has a concurrent enter_exit running
1852 # and this sleep increases chances of the player not ending up in scorn
1853 Coro::Timer::sleep 1;
1854 $pl->ob->leave_link;
1855 })->prio (2);
1856 }
1857 },
1858);
1859
1448=item $player_object->goto_map ($map, $x, $y) 1860=item $player_object->goto ($path, $x, $y)
1449 1861
1450=cut 1862=cut
1451 1863
1452sub cf::object::player::goto_map { 1864sub cf::object::player::goto {
1453 my ($self, $path, $x, $y) = @_; 1865 my ($self, $path, $x, $y) = @_;
1454 1866
1455 $self->enter_link; 1867 $self->enter_link;
1456 1868
1457 (Coro::async { 1869 (async {
1458 $path = new cf::path $path; 1870 my $map = eval {
1459
1460 my $map = cf::map::find_map $path->as_string; 1871 my $map = cf::map::find $path;
1461 $map = $map->customise_for ($self) if $map; 1872 $map = $map->customise_for ($self) if $map;
1462
1463 warn "entering ", $map->path, " at ($x, $y)\n"
1464 if $map; 1873 $map
1465 1874 } or
1466 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1875 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1467 1876
1468 $self->leave_link ($map, $x, $y); 1877 $self->leave_link ($map, $x, $y);
1469 })->prio (1); 1878 })->prio (1);
1470} 1879}
1471 1880
1475 1884
1476sub parse_random_map_params { 1885sub parse_random_map_params {
1477 my ($spec) = @_; 1886 my ($spec) = @_;
1478 1887
1479 my $rmp = { # defaults 1888 my $rmp = { # defaults
1480 xsize => 10, 1889 xsize => (cf::rndm 15, 40),
1481 ysize => 10, 1890 ysize => (cf::rndm 15, 40),
1891 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1892 #layout => string,
1482 }; 1893 };
1483 1894
1484 for (split /\n/, $spec) { 1895 for (split /\n/, $spec) {
1485 my ($k, $v) = split /\s+/, $_, 2; 1896 my ($k, $v) = split /\s+/, $_, 2;
1486 1897
1490 $rmp 1901 $rmp
1491} 1902}
1492 1903
1493sub prepare_random_map { 1904sub prepare_random_map {
1494 my ($exit) = @_; 1905 my ($exit) = @_;
1906
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1495 1908
1496 # all this does is basically replace the /! path by 1909 # all this does is basically replace the /! path by
1497 # a new random map path (?random/...) with a seed 1910 # a new random map path (?random/...) with a seed
1498 # that depends on the exit object 1911 # that depends on the exit object
1499 1912
1500 my $rmp = parse_random_map_params $exit->msg; 1913 my $rmp = parse_random_map_params $exit->msg;
1501 1914
1502 if ($exit->map) { 1915 if ($exit->map) {
1503 $rmp->{region} = $exit->map->region_name; 1916 $rmp->{region} = $exit->region->name;
1504 $rmp->{origin_map} = $exit->map->path; 1917 $rmp->{origin_map} = $exit->map->path;
1505 $rmp->{origin_x} = $exit->x; 1918 $rmp->{origin_x} = $exit->x;
1506 $rmp->{origin_y} = $exit->y; 1919 $rmp->{origin_y} = $exit->y;
1507 } 1920 }
1508 1921
1509 $rmp->{random_seed} ||= $exit->random_seed; 1922 $rmp->{random_seed} ||= $exit->random_seed;
1510 1923
1511 my $data = cf::to_json $rmp; 1924 my $data = cf::to_json $rmp;
1512 my $md5 = Digest::MD5::md5_hex $data; 1925 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1513 1927
1514 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1928 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1515 aio_write $fh, 0, (length $data), $data, 0; 1929 aio_write $fh, 0, (length $data), $data, 0;
1930 undef $fh;
1931 aio_rename "$meta~", $meta;
1516 1932
1517 $exit->slaying ("?random/$md5"); 1933 $exit->slaying ("?random/$md5");
1518 $exit->msg (undef); 1934 $exit->msg (undef);
1519 } 1935 }
1520} 1936}
1522sub cf::object::player::enter_exit { 1938sub cf::object::player::enter_exit {
1523 my ($self, $exit) = @_; 1939 my ($self, $exit) = @_;
1524 1940
1525 return unless $self->type == cf::PLAYER; 1941 return unless $self->type == cf::PLAYER;
1526 1942
1943 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job
1945 cf::sync_job { prepare_random_map $exit };
1946 }
1947
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp;
1950 my $sp = $exit->stats->sp;
1951
1527 $self->enter_link; 1952 $self->enter_link;
1528 1953
1529 (Coro::async { 1954 (async {
1955 $self->deactivate_recursive; # just to be sure
1530 unless (eval { 1956 unless (eval {
1531 1957 $self->goto ($slaying, $hp, $sp);
1532 prepare_random_map $exit
1533 if $exit->slaying eq "/!";
1534
1535 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1536 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1537 1958
1538 1; 1959 1;
1539 }) { 1960 }) {
1540 $self->message ("Something went wrong deep within the crossfire server. " 1961 $self->message ("Something went wrong deep within the crossfire server. "
1541 . "I'll try to bring you back to the map you were before. " 1962 . "I'll try to bring you back to the map you were before. "
1542 . "Please report this to the dungeon master", 1963 . "Please report this to the dungeon master!",
1543 cf::NDI_UNIQUE | cf::NDI_RED); 1964 cf::NDI_UNIQUE | cf::NDI_RED);
1544 1965
1545 warn "ERROR in enter_exit: $@"; 1966 warn "ERROR in enter_exit: $@";
1546 $self->leave_link; 1967 $self->leave_link;
1547 } 1968 }
1598 on_reply => sub { 2019 on_reply => sub {
1599 my ($ns, $msg) = @_; 2020 my ($ns, $msg) = @_;
1600 2021
1601 # this weird shuffling is so that direct followup queries 2022 # this weird shuffling is so that direct followup queries
1602 # get handled first 2023 # get handled first
1603 my $queue = delete $ns->{query_queue}; 2024 my $queue = delete $ns->{query_queue}
2025 or return; # be conservative, not sure how that can happen, but we saw a crash here
1604 2026
1605 (shift @$queue)->[1]->($msg); 2027 (shift @$queue)->[1]->($msg);
2028 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1606 2029
1607 push @{ $ns->{query_queue} }, @$queue; 2030 push @{ $ns->{query_queue} }, @$queue;
1608 2031
1609 if (@{ $ns->{query_queue} } == @$queue) { 2032 if (@{ $ns->{query_queue} } == @$queue) {
1610 if (@$queue) { 2033 if (@$queue) {
1614 } 2037 }
1615 } 2038 }
1616 }, 2039 },
1617); 2040);
1618 2041
1619=item $client->coro (\&cb) 2042=item $client->async (\&cb)
1620 2043
1621Create a new coroutine, running the specified callback. The coroutine will 2044Create a new coroutine, running the specified callback. The coroutine will
1622be automatically cancelled when the client gets destroyed (e.g. on logout, 2045be automatically cancelled when the client gets destroyed (e.g. on logout,
1623or loss of connection). 2046or loss of connection).
1624 2047
1625=cut 2048=cut
1626 2049
1627sub cf::client::coro { 2050sub cf::client::async {
1628 my ($self, $cb) = @_; 2051 my ($self, $cb) = @_;
1629 2052
1630 my $coro; $coro = async { 2053 my $coro = &Coro::async ($cb);
1631 eval {
1632 $cb->();
1633 };
1634 warn $@ if $@;
1635 };
1636 2054
1637 $coro->on_destroy (sub { 2055 $coro->on_destroy (sub {
1638 delete $self->{_coro}{$coro+0}; 2056 delete $self->{_coro}{$coro+0};
1639 }); 2057 });
1640 2058
1776The parameter C<$family> should best start with the name of the extension 2194The parameter C<$family> should best start with the name of the extension
1777using it, it should be unique. 2195using it, it should be unique.
1778 2196
1779=over 4 2197=over 4
1780 2198
1781=item $hashref = cf::db_get $family
1782
1783Return a hashref for use by the extension C<$family>, which can be
1784modified. After modifications, you have to call C<cf::db_dirty> or
1785C<cf::db_sync>.
1786
1787=item $value = cf::db_get $family => $key 2199=item $value = cf::db_get $family => $key
1788 2200
1789Returns a single value from the database 2201Returns a single value from the database.
1790
1791=item cf::db_put $family => $hashref
1792
1793Stores the given family hashref into the database. Updates are delayed, if
1794you want the data to be synced to disk immediately, use C<cf::db_sync>.
1795 2202
1796=item cf::db_put $family => $key => $value 2203=item cf::db_put $family => $key => $value
1797 2204
1798Stores the given C<$value> in the family hash. Updates are delayed, if you 2205Stores the given C<$value> in the family.
1799want the data to be synced to disk immediately, use C<cf::db_sync>.
1800
1801=item cf::db_dirty
1802
1803Marks the database as dirty, to be updated at a later time.
1804
1805=item cf::db_sync
1806
1807Immediately write the database to disk I<if it is dirty>.
1808 2206
1809=cut 2207=cut
1810 2208
1811our $DB; 2209our $DB;
1812 2210
1813{ 2211sub db_init {
2212 unless ($DB) {
2213 $DB = BDB::db_create $DB_ENV;
2214
2215 cf::sync_job {
2216 eval {
2217 $DB->set_flags (BDB::CHKSUM);
2218
2219 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!;
2222 };
2223 cf::cleanup "db_open(db): $@" if $@;
2224 };
2225
1814 my $path = cf::localdir . "/database.pst"; 2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
1815 2230
1816 sub db_load() { 2231 cf::db_put (board => data => $pst->{board});
1817 warn "loading database $path\n";#d# remove later 2232 cf::db_put (guildrules => data => $pst->{guildrules});
1818 $DB = stat $path ? Storable::retrieve $path : { }; 2233 cf::db_put (rent => balance => $pst->{rent}{balance});
1819 } 2234 BDB::db_env_txn_checkpoint $DB_ENV;
1820 2235
1821 my $pid; 2236 unlink $path;
1822
1823 sub db_save() {
1824 warn "saving database $path\n";#d# remove later
1825 waitpid $pid, 0 if $pid;
1826 if (0 == ($pid = fork)) {
1827 $DB->{_meta}{version} = 1;
1828 Storable::nstore $DB, "$path~";
1829 rename "$path~", $path;
1830 cf::_exit 0 if defined $pid;
1831 } 2237 };
1832 }
1833
1834 my $dirty;
1835
1836 sub db_sync() {
1837 db_save if $dirty;
1838 undef $dirty;
1839 }
1840
1841 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1842 db_sync;
1843 });
1844
1845 sub db_dirty() {
1846 $dirty = 1;
1847 $idle->start;
1848 }
1849
1850 sub db_get($;$) {
1851 @_ >= 2
1852 ? $DB->{$_[0]}{$_[1]}
1853 : ($DB->{$_[0]} ||= { })
1854 }
1855
1856 sub db_put($$;$) {
1857 if (@_ >= 3) {
1858 $DB->{$_[0]}{$_[1]} = $_[2];
1859 } else {
1860 $DB->{$_[0]} = $_[1];
1861 }
1862 db_dirty;
1863 }
1864
1865 cf::global->attach (
1866 prio => 10000,
1867 on_cleanup => sub {
1868 db_sync;
1869 }, 2238 }
1870 ); 2239 }
2240}
2241
2242sub db_get($$) {
2243 my $key = "$_[0]/$_[1]";
2244
2245 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data;
2247
2248 $! ? ()
2249 : Compress::LZF::sthaw $data
2250 }
2251}
2252
2253sub db_put($$$) {
2254 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1871} 2256}
1872 2257
1873############################################################################# 2258#############################################################################
1874# the server's main() 2259# the server's init and main functions
2260
2261sub load_resources {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2263 or die "unable to load regions file\n";#d#
2264}
1875 2265
1876sub cfg_load { 2266sub cfg_load {
1877 open my $fh, "<:utf8", cf::confdir . "/config" 2267 open my $fh, "<:utf8", cf::confdir . "/config"
1878 or return; 2268 or return;
1879 2269
1880 local $/; 2270 local $/;
1881 *CFG = YAML::Syck::Load <$fh>; 2271 *CFG = YAML::Syck::Load <$fh>;
2272
2273 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2274
2275 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2276 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2277
2278 if (exists $CFG{mlockall}) {
2279 eval {
2280 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2281 and die "WARNING: m(un)lockall failed: $!\n";
2282 };
2283 warn $@ if $@;
2284 }
2285}
2286
2287sub init {
2288 load_resources;
1882} 2289}
1883 2290
1884sub main { 2291sub main {
1885 # we must not ever block the main coroutine 2292 # we must not ever block the main coroutine
1886 local $Coro::idle = sub { 2293 local $Coro::idle = sub {
1887 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2294 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1888 (Coro::unblock_sub { 2295 (async {
1889 Event::one_event; 2296 Event::one_event;
1890 })->(); 2297 })->prio (Coro::PRIO_MAX);
1891 }; 2298 };
1892 2299
1893 cfg_load; 2300 cfg_load;
1894 db_load; 2301 db_init;
1895 load_extensions; 2302 load_extensions;
2303
2304 $TICK_WATCHER->start;
1896 Event::loop; 2305 Event::loop;
1897} 2306}
1898 2307
1899############################################################################# 2308#############################################################################
1900# initialisation 2309# initialisation and cleanup
2310
2311# install some emergency cleanup handlers
2312BEGIN {
2313 for my $signal (qw(INT HUP TERM)) {
2314 Event->signal (
2315 reentrant => 0,
2316 data => WF_AUTOCANCEL,
2317 signal => $signal,
2318 prio => 0,
2319 cb => sub {
2320 cf::cleanup "SIG$signal";
2321 },
2322 );
2323 }
2324}
2325
2326sub emergency_save() {
2327 my $freeze_guard = cf::freeze_mainloop;
2328
2329 warn "enter emergency perl save\n";
2330
2331 cf::sync_job {
2332 # use a peculiar iteration method to avoid tripping on perl
2333 # refcount bugs in for. also avoids problems with players
2334 # and maps saved/destroyed asynchronously.
2335 warn "begin emergency player save\n";
2336 for my $login (keys %cf::PLAYER) {
2337 my $pl = $cf::PLAYER{$login} or next;
2338 $pl->valid or next;
2339 $pl->save;
2340 }
2341 warn "end emergency player save\n";
2342
2343 warn "begin emergency map save\n";
2344 for my $path (keys %cf::MAP) {
2345 my $map = $cf::MAP{$path} or next;
2346 $map->valid or next;
2347 $map->save;
2348 }
2349 warn "end emergency map save\n";
2350
2351 warn "begin emergency database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n";
2354 };
2355
2356 warn "leave emergency perl save\n";
2357}
2358
2359sub post_cleanup {
2360 my ($make_core) = @_;
2361
2362 warn Carp::longmess "post_cleanup backtrace"
2363 if $make_core;
2364}
1901 2365
1902sub reload() { 2366sub reload() {
1903 # can/must only be called in main 2367 # can/must only be called in main
1904 if ($Coro::current != $Coro::main) { 2368 if ($Coro::current != $Coro::main) {
1905 warn "can only reload from main coroutine\n"; 2369 warn "can only reload from main coroutine";
1906 return; 2370 return;
1907 } 2371 }
1908 2372
1909 warn "reloading..."; 2373 warn "reloading...";
1910 2374
1911 local $FREEZE = 1; 2375 warn "entering sync_job";
2376
2377 cf::sync_job {
2378 cf::write_runtime; # external watchdog should not bark
1912 cf::emergency_save; 2379 cf::emergency_save;
2380 cf::write_runtime; # external watchdog should not bark
1913 2381
1914 eval { 2382 warn "syncing database to disk";
2383 BDB::db_env_txn_checkpoint $DB_ENV;
2384
1915 # if anything goes wrong in here, we should simply crash as we already saved 2385 # if anything goes wrong in here, we should simply crash as we already saved
1916 2386
1917 # cancel all watchers 2387 warn "cancelling all WF_AUTOCANCEL watchers";
1918 for (Event::all_watchers) { 2388 for (Event::all_watchers) {
1919 $_->cancel if $_->data & WF_AUTOCANCEL; 2389 $_->cancel if $_->data & WF_AUTOCANCEL;
1920 } 2390 }
1921 2391
2392 warn "flushing outstanding aio requests";
2393 for (;;) {
2394 BDB::flush;
2395 IO::AIO::flush;
2396 Coro::cede;
2397 last unless IO::AIO::nreqs || BDB::nreqs;
2398 warn "iterate...";
2399 }
2400
1922 # cancel all extension coros 2401 warn "cancelling all extension coros";
1923 $_->cancel for values %EXT_CORO; 2402 $_->cancel for values %EXT_CORO;
1924 %EXT_CORO = (); 2403 %EXT_CORO = ();
1925 2404
1926 # unload all extensions 2405 warn "removing commands";
1927 for (@exts) { 2406 %COMMAND = ();
2407
2408 warn "removing ext commands";
2409 %EXTCMD = ();
2410
2411 warn "unloading/nuking all extensions";
2412 for my $pkg (@EXTS) {
1928 warn "unloading <$_>"; 2413 warn "... unloading $pkg";
1929 unload_extension $_; 2414
2415 if (my $cb = $pkg->can ("unload")) {
2416 eval {
2417 $cb->($pkg);
2418 1
2419 } or warn "$pkg unloaded, but with errors: $@";
1930 } 2420 }
1931 2421
2422 warn "... nuking $pkg";
2423 Symbol::delete_package $pkg;
2424 }
2425
1932 # unload all modules loaded from $LIBDIR 2426 warn "unloading all perl modules loaded from $LIBDIR";
1933 while (my ($k, $v) = each %INC) { 2427 while (my ($k, $v) = each %INC) {
1934 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2428 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1935 2429
1936 warn "removing <$k>"; 2430 warn "... unloading $k";
1937 delete $INC{$k}; 2431 delete $INC{$k};
1938 2432
1939 $k =~ s/\.pm$//; 2433 $k =~ s/\.pm$//;
1940 $k =~ s/\//::/g; 2434 $k =~ s/\//::/g;
1941 2435
1944 } 2438 }
1945 2439
1946 Symbol::delete_package $k; 2440 Symbol::delete_package $k;
1947 } 2441 }
1948 2442
1949 # sync database to disk
1950 cf::db_sync;
1951 IO::AIO::flush;
1952
1953 # get rid of safe::, as good as possible 2443 warn "getting rid of safe::, as good as possible";
1954 Symbol::delete_package "safe::$_" 2444 Symbol::delete_package "safe::$_"
1955 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2445 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1956 2446
1957 # remove register_script_function callbacks
1958 # TODO
1959
1960 # unload cf.pm "a bit" 2447 warn "unloading cf.pm \"a bit\"";
1961 delete $INC{"cf.pm"}; 2448 delete $INC{"cf.pm"};
1962 2449
1963 # don't, removes xs symbols, too, 2450 # don't, removes xs symbols, too,
1964 # and global variables created in xs 2451 # and global variables created in xs
1965 #Symbol::delete_package __PACKAGE__; 2452 #Symbol::delete_package __PACKAGE__;
1966 2453
1967 # reload cf.pm 2454 warn "unload completed, starting to reload now";
2455
1968 warn "reloading cf.pm"; 2456 warn "reloading cf.pm";
1969 require cf; 2457 require cf;
1970 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2458 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1971 2459
1972 # load config and database again 2460 warn "loading config and database again";
1973 cf::cfg_load; 2461 cf::cfg_load;
1974 cf::db_load;
1975 2462
1976 # load extensions
1977 warn "load extensions"; 2463 warn "loading extensions";
1978 cf::load_extensions; 2464 cf::load_extensions;
1979 2465
1980 # reattach attachments to objects 2466 warn "reattaching attachments to objects/players";
1981 warn "reattach";
1982 _global_reattach; 2467 _global_reattach;
1983 }; 2468 warn "reattaching attachments to maps";
2469 reattach $_ for values %MAP;
1984 2470
1985 if ($@) { 2471 warn "loading reloadable resources";
2472 load_resources;
2473
2474 warn "leaving sync_job";
2475
2476 1
2477 } or do {
1986 warn $@; 2478 warn $@;
1987 warn "error while reloading, exiting."; 2479 warn "error while reloading, exiting.";
1988 exit 1; 2480 exit 1;
1989 } 2481 };
1990 2482
1991 warn "reloaded successfully"; 2483 warn "reloaded";
1992}; 2484};
1993 2485
1994############################################################################# 2486our $RELOAD_WATCHER; # used only during reload
1995
1996unless ($LINK_MAP) {
1997 $LINK_MAP = cf::map::new;
1998
1999 $LINK_MAP->width (41);
2000 $LINK_MAP->height (41);
2001 $LINK_MAP->alloc;
2002 $LINK_MAP->path ("{link}");
2003 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2004 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2005
2006 # dirty hack because... archetypes are not yet loaded
2007 Event->timer (
2008 after => 2,
2009 cb => sub {
2010 $_[0]->w->cancel;
2011
2012 # provide some exits "home"
2013 my $exit = cf::object::new "exit";
2014
2015 $exit->slaying ($EMERGENCY_POSITION->[0]);
2016 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2017 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2018
2019 $LINK_MAP->insert ($exit->clone, 19, 19);
2020 $LINK_MAP->insert ($exit->clone, 19, 20);
2021 $LINK_MAP->insert ($exit->clone, 19, 21);
2022 $LINK_MAP->insert ($exit->clone, 20, 19);
2023 $LINK_MAP->insert ($exit->clone, 20, 21);
2024 $LINK_MAP->insert ($exit->clone, 21, 19);
2025 $LINK_MAP->insert ($exit->clone, 21, 20);
2026 $LINK_MAP->insert ($exit->clone, 21, 21);
2027
2028 $exit->destroy;
2029 });
2030
2031 $LINK_MAP->{deny_save} = 1;
2032 $LINK_MAP->{deny_reset} = 1;
2033
2034 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2035}
2036
2037register "<global>", __PACKAGE__;
2038 2487
2039register_command "reload" => sub { 2488register_command "reload" => sub {
2040 my ($who, $arg) = @_; 2489 my ($who, $arg) = @_;
2041 2490
2042 if ($who->flag (FLAG_WIZ)) { 2491 if ($who->flag (FLAG_WIZ)) {
2043 $who->message ("start of reload."); 2492 $who->message ("reloading server.");
2493
2494 # doing reload synchronously and two reloads happen back-to-back,
2495 # coro crashes during coro_state_free->destroy here.
2496
2497 $RELOAD_WATCHER ||= Event->timer (
2498 reentrant => 0,
2499 after => 0,
2500 data => WF_AUTOCANCEL,
2501 cb => sub {
2044 reload; 2502 reload;
2045 $who->message ("end of reload."); 2503 undef $RELOAD_WATCHER;
2504 },
2505 );
2046 } 2506 }
2047}; 2507};
2048 2508
2049unshift @INC, $LIBDIR; 2509unshift @INC, $LIBDIR;
2510
2511my $bug_warning = 0;
2050 2512
2051$TICK_WATCHER = Event->timer ( 2513$TICK_WATCHER = Event->timer (
2052 reentrant => 0, 2514 reentrant => 0,
2515 parked => 1,
2053 prio => 0, 2516 prio => 0,
2054 at => $NEXT_TICK || $TICK, 2517 at => $NEXT_TICK || $TICK,
2055 data => WF_AUTOCANCEL, 2518 data => WF_AUTOCANCEL,
2056 cb => sub { 2519 cb => sub {
2057 unless ($FREEZE) { 2520 if ($Coro::current != $Coro::main) {
2521 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522 unless ++$bug_warning > 10;
2523 return;
2524 }
2525
2526 $NOW = Event::time;
2527
2058 cf::server_tick; # one server iteration 2528 cf::server_tick; # one server iteration
2059 $RUNTIME += $TICK; 2529 $RUNTIME += $TICK;
2060 }
2061
2062 $NEXT_TICK += $TICK; 2530 $NEXT_TICK += $TICK;
2531
2532 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533 $NEXT_RUNTIME_WRITE = $NOW + 10;
2534 Coro::async_pool {
2535 write_runtime
2536 or warn "ERROR: unable to write runtime file: $!";
2537 };
2538 }
2539
2540
2541 $WAIT_FOR_TICK->broadcast;
2542 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2543
2544# my $AFTER = Event::time;
2545# warn $AFTER - $NOW;#d#
2063 2546
2064 # if we are delayed by four ticks or more, skip them all 2547 # if we are delayed by four ticks or more, skip them all
2065 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2548 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2066 2549
2067 $TICK_WATCHER->at ($NEXT_TICK); 2550 $TICK_WATCHER->at ($NEXT_TICK);
2068 $TICK_WATCHER->start; 2551 $TICK_WATCHER->start;
2069 }, 2552 },
2070); 2553);
2071 2554
2555{
2072IO::AIO::max_poll_time $TICK * 0.2; 2556 BDB::max_poll_time $TICK * 0.1;
2073 2557 $BDB_POLL_WATCHER = Event->io (
2074Event->io ( 2558 reentrant => 0,
2075 fd => IO::AIO::poll_fileno, 2559 fd => BDB::poll_fileno,
2076 poll => 'r', 2560 poll => 'r',
2077 prio => 5, 2561 prio => 0,
2078 data => WF_AUTOCANCEL,
2079 cb => \&IO::AIO::poll_cb,
2080);
2081
2082Event->timer (
2083 data => WF_AUTOCANCEL, 2562 data => WF_AUTOCANCEL,
2084 after => 0, 2563 cb => \&BDB::poll_cb,
2085 interval => 10, 2564 );
2086 cb => sub { 2565 BDB::min_parallel 8;
2087 (Coro::unblock_sub { 2566
2088 write_runtime 2567 BDB::set_sync_prepare {
2089 or warn "ERROR: unable to write runtime file: $!"; 2568 my $status;
2569 my $current = $Coro::current;
2570 (
2571 sub {
2572 $status = $!;
2573 $current->ready; undef $current;
2574 },
2575 sub {
2576 Coro::schedule while defined $current;
2577 $! = $status;
2578 },
2579 )
2580 };
2581
2582 unless ($DB_ENV) {
2583 $DB_ENV = BDB::db_env_create;
2584
2585 cf::sync_job {
2586 eval {
2587 BDB::db_env_open
2588 $DB_ENV,
2589 $BDB_ENV_DIR,
2590 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2591 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2592 0666;
2593
2594 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2595
2596 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2597 $DB_ENV->set_lk_detect;
2598 };
2599
2600 cf::cleanup "db_env_open(db): $@" if $@;
2090 })->(); 2601 };
2091 }, 2602 }
2092); 2603}
2604
2605{
2606 IO::AIO::min_parallel 8;
2607
2608 undef $Coro::AIO::WATCHER;
2609 IO::AIO::max_poll_time $TICK * 0.1;
2610 $AIO_POLL_WATCHER = Event->io (
2611 reentrant => 0,
2612 data => WF_AUTOCANCEL,
2613 fd => IO::AIO::poll_fileno,
2614 poll => 'r',
2615 prio => 6,
2616 cb => \&IO::AIO::poll_cb,
2617 );
2618}
2619
2620END { cf::emergency_save }
2093 2621
20941 26221
2095 2623

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