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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 1.227 by root, Fri Mar 23 18:32:48 2007 UTC

4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.3; 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
19 21
22use BDB ();
23use Data::Dumper;
20use Digest::MD5; 24use Digest::MD5;
21use Fcntl; 25use Fcntl;
22use IO::AIO 2.31 ();
23use YAML::Syck (); 26use YAML::Syck ();
27use IO::AIO 2.32 ();
24use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
25 30
31# configure various modules to our taste
32#
33Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 36$Event::Eval = 1; # no idea why this is required, but it is
27 37
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 38# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 39$YAML::Syck::ImplicitUnicode = 1;
30 40
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 41$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 42
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 43sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 44
35our %COMMAND = (); 45our %COMMAND = ();
36our %COMMAND_TIME = (); 46our %COMMAND_TIME = ();
47
48our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 49our %EXTCMD = ();
50our %EXT_CORO = (); # coroutines bound to extensions
51our %EXT_MAP = (); # pluggable maps
38 52
53our $RELOAD; # number of reloads so far
39our @EVENT; 54our @EVENT;
40our $LIBDIR = datadir . "/ext"; 55our $LIBDIR = datadir . "/ext";
41 56
42our $TICK = MAX_TIME * 1e-6; 57our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 58our $TICK_WATCHER;
59our $AIO_POLL_WATCHER;
60our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 61our $NEXT_TICK;
45our $NOW; 62our $NOW;
63our $USE_FSYNC = 1; # use fsync to write maps - default off
64
65our $BDB_POLL_WATCHER;
66our $DB_ENV;
46 67
47our %CFG; 68our %CFG;
48 69
49our $UPTIME; $UPTIME ||= time; 70our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 71our $RUNTIME;
51 72
73our %PLAYER; # all users
52our %MAP; # all maps 74our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 75our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 76our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 77our $BDB_ENV_DIR = cf::localdir . "/db";
78
79our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81
82# used to convert map paths into valid unix filenames by replacing / by ∕
83our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 84
58binmode STDOUT; 85binmode STDOUT;
59binmode STDERR; 86binmode STDERR;
60 87
61# read virtual server time, if available 88# read virtual server time, if available
68mkdir cf::localdir; 95mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 96mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 97mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 98mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 99mkdir $RANDOM_MAPS;
100mkdir $BDB_ENV_DIR;
73 101
74# a special map that is always available 102our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 103
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 104sub cf::map::normalise;
78 105
79############################################################################# 106#############################################################################
80 107
81=head2 GLOBAL VARIABLES 108=head2 GLOBAL VARIABLES
82 109
106 133
107=item %cf::CFG 134=item %cf::CFG
108 135
109Configuration for the server, loaded from C</etc/crossfire/config>, or 136Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 137from wherever your confdir points to.
138
139=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
140
141These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
142or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
143processing has been done. Call C<< ->wait >> on them to maximise the
144window of cpu time available, or simply to synchronise to the server tick.
111 145
112=back 146=back
113 147
114=cut 148=cut
115 149
119 utf8::encode $msg; 153 utf8::encode $msg;
120 154
121 $msg .= "\n" 155 $msg .= "\n"
122 unless $msg =~ /\n$/; 156 unless $msg =~ /\n$/;
123 157
124 LOG llevError, "cfperl: $msg"; 158 LOG llevError, $msg;
125 }; 159 };
126} 160}
127 161
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 162@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 163@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 181
148$Event::DIED = sub { 182$Event::DIED = sub {
149 warn "error in event callback: @_"; 183 warn "error in event callback: @_";
150}; 184};
151 185
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 186=head2 UTILITY FUNCTIONS
157 187
158=over 4 188=over 4
159 189
160=cut 190=item dumpval $ref
161 191
192=cut
193
194sub dumpval {
195 eval {
196 local $SIG{__DIE__};
197 my $d;
198 if (1) {
199 $d = new Data::Dumper([$_[0]], ["*var"]);
200 $d->Terse(1);
201 $d->Indent(2);
202 $d->Quotekeys(0);
203 $d->Useqq(1);
204 #$d->Bless(...);
205 $d->Seen($_[1]) if @_ > 1;
206 $d = $d->Dump();
207 }
208 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209 $d
210 } || "[unable to dump $_[0]: '$@']";
211}
212
162use JSON::Syck (); # TODO# replace by JSON::PC once working 213use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163 214
164=item $ref = cf::from_json $json 215=item $ref = cf::from_json $json
165 216
166Converts a JSON string into the corresponding perl data structure. 217Converts a JSON string into the corresponding perl data structure.
167 218
168=cut
169
170sub from_json($) {
171 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172 JSON::Syck::Load $_[0]
173}
174
175=item $json = cf::to_json $ref 219=item $json = cf::to_json $ref
176 220
177Converts a perl data structure into its JSON representation. 221Converts a perl data structure into its JSON representation.
178 222
179=cut 223=item cf::lock_wait $string
180 224
181sub to_json($) { 225Wait until the given lock is available. See cf::lock_acquire.
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 226
183 JSON::Syck::Dump $_[0] 227=item my $lock = cf::lock_acquire $string
228
229Wait until the given lock is available and then acquires it and returns
230a Coro::guard object. If the guard object gets destroyed (goes out of scope,
231for example when the coroutine gets canceled), the lock is automatically
232returned.
233
234Lock names should begin with a unique identifier (for example, cf::map::find
235uses map_find and cf::map::load uses map_load).
236
237=cut
238
239our %LOCK;
240
241sub lock_wait($) {
242 my ($key) = @_;
243
244 # wait for lock, if any
245 while ($LOCK{$key}) {
246 push @{ $LOCK{$key} }, $Coro::current;
247 Coro::schedule;
248 }
184} 249}
250
251sub lock_acquire($) {
252 my ($key) = @_;
253
254 # wait, to be sure we are not locked
255 lock_wait $key;
256
257 $LOCK{$key} = [];
258
259 Coro::guard {
260 # wake up all waiters, to be on the safe side
261 $_->ready for @{ delete $LOCK{$key} };
262 }
263}
264
265sub freeze_mainloop {
266 return unless $TICK_WATCHER->is_active;
267
268 my $guard = Coro::guard {
269 $TICK_WATCHER->start;
270 };
271 $TICK_WATCHER->stop;
272 $guard
273}
274
275=item cf::async { BLOCK }
276
277Currently the same as Coro::async_pool, meaning you cannot use
278C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
279thing you are allowed to do is call C<prio> on it.
280
281=cut
282
283BEGIN { *async = \&Coro::async_pool }
185 284
186=item cf::sync_job { BLOCK } 285=item cf::sync_job { BLOCK }
187 286
188The design of crossfire+ requires that the main coro ($Coro::main) is 287The design of crossfire+ requires that the main coro ($Coro::main) is
189always able to handle events or runnable, as crossfire+ is only partly 288always able to handle events or runnable, as crossfire+ is only partly
203 # this is the main coro, too bad, we have to block 302 # this is the main coro, too bad, we have to block
204 # till the operation succeeds, freezing the server :/ 303 # till the operation succeeds, freezing the server :/
205 304
206 # TODO: use suspend/resume instead 305 # TODO: use suspend/resume instead
207 # (but this is cancel-safe) 306 # (but this is cancel-safe)
208 local $FREEZE = 1; 307 my $freeze_guard = freeze_mainloop;
209 308
210 my $busy = 1; 309 my $busy = 1;
211 my @res; 310 my @res;
212 311
213 (Coro::async { 312 (async {
214 @res = eval { $job->() }; 313 @res = eval { $job->() };
215 warn $@ if $@; 314 warn $@ if $@;
216 undef $busy; 315 undef $busy;
217 })->prio (Coro::PRIO_MAX); 316 })->prio (Coro::PRIO_MAX);
218 317
219 while ($busy) { 318 while ($busy) {
220 Coro::cede_notself; 319 Coro::cede or Event::one_event;
221 Event::one_event unless Coro::nready;
222 } 320 }
223 321
224 wantarray ? @res : $res[0] 322 wantarray ? @res : $res[0]
225 } else { 323 } else {
226 # we are in another coroutine, how wonderful, everything just works 324 # we are in another coroutine, how wonderful, everything just works
227 325
228 $job->() 326 $job->()
229 } 327 }
230} 328}
231 329
232=item $coro = cf::coro { BLOCK } 330=item $coro = cf::async_ext { BLOCK }
233 331
234Creates and returns a new coro. This coro is automcatially being canceled 332Like async, but this coro is automatically being canceled when the
235when the extension calling this is being unloaded. 333extension calling this is being unloaded.
236 334
237=cut 335=cut
238 336
239sub coro(&) { 337sub async_ext(&) {
240 my $cb = shift; 338 my $cb = shift;
241 339
242 my $coro; $coro = async { 340 my $coro = &Coro::async ($cb);
243 eval {
244 $cb->();
245 };
246 warn $@ if $@;
247 };
248 341
249 $coro->on_destroy (sub { 342 $coro->on_destroy (sub {
250 delete $EXT_CORO{$coro+0}; 343 delete $EXT_CORO{$coro+0};
251 }); 344 });
252 $EXT_CORO{$coro+0} = $coro; 345 $EXT_CORO{$coro+0} = $coro;
253 346
254 $coro 347 $coro
255} 348}
256 349
257sub write_runtime { 350sub write_runtime {
351 my $guard = cf::lock_acquire "write_runtime";
352
258 my $runtime = cf::localdir . "/runtime"; 353 my $runtime = cf::localdir . "/runtime";
259 354
260 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 355 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261 or return; 356 or return;
262 357
358 my $value = $cf::RUNTIME + 90 + 10;
263 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 359 # 10 is the runtime save interval, for a monotonic clock
360 # 60 allows for the watchdog to kill the server.
361
264 (aio_write $fh, 0, (length $value), $value, 0) <= 0 362 (aio_write $fh, 0, (length $value), $value, 0) <= 0
265 and return; 363 and return;
266 364
365 # always fsync - this file is important
267 aio_fsync $fh 366 aio_fsync $fh
268 and return; 367 and return;
269 368
270 close $fh 369 close $fh
271 or return; 370 or return;
277} 376}
278 377
279=back 378=back
280 379
281=cut 380=cut
282
283#############################################################################
284
285package cf::path;
286
287sub new {
288 my ($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;
402 381
403############################################################################# 382#############################################################################
404 383
405=head2 ATTACHABLE OBJECTS 384=head2 ATTACHABLE OBJECTS
406 385
532our @CB_TYPE = (); # registry for type (cf-object class) based events 511our @CB_TYPE = (); # registry for type (cf-object class) based events
533our @CB_MAP = (); 512our @CB_MAP = ();
534 513
535my %attachment; 514my %attachment;
536 515
516sub cf::attachable::thawer_merge {
517 # simply override everything except _meta
518 local $_[0]{_meta};
519 %{$_[0]} = %{$_[1]};
520}
521
537sub _attach_cb($$$$) { 522sub _attach_cb($$$$) {
538 my ($registry, $event, $prio, $cb) = @_; 523 my ($registry, $event, $prio, $cb) = @_;
539 524
540 use sort 'stable'; 525 use sort 'stable';
541 526
712# object support 697# object support
713 698
714sub reattach { 699sub reattach {
715 # basically do the same as instantiate, without calling instantiate 700 # basically do the same as instantiate, without calling instantiate
716 my ($obj) = @_; 701 my ($obj) = @_;
702
703 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717 704
718 my $registry = $obj->registry; 705 my $registry = $obj->registry;
719 706
720 @$registry = (); 707 @$registry = ();
721 708
768 $filename, length $$rdata, scalar @$objs; 755 $filename, length $$rdata, scalar @$objs;
769 756
770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 757 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771 chmod SAVE_MODE, $fh; 758 chmod SAVE_MODE, $fh;
772 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 759 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773 aio_fsync $fh; 760 aio_fsync $fh if $cf::USE_FSYNC;
774 close $fh; 761 close $fh;
775 762
776 if (@$objs) { 763 if (@$objs) {
777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 764 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778 chmod SAVE_MODE, $fh; 765 chmod SAVE_MODE, $fh;
779 my $data = Storable::nfreeze { version => 1, objs => $objs }; 766 my $data = Storable::nfreeze { version => 1, objs => $objs };
780 aio_write $fh, 0, (length $data), $data, 0; 767 aio_write $fh, 0, (length $data), $data, 0;
781 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
782 close $fh; 769 close $fh;
783 aio_rename "$filename.pst~", "$filename.pst"; 770 aio_rename "$filename.pst~", "$filename.pst";
784 } 771 }
785 } else { 772 } else {
786 aio_unlink "$filename.pst"; 773 aio_unlink "$filename.pst";
817 (aio_load "$filename.pst", $av) >= 0 804 (aio_load "$filename.pst", $av) >= 0
818 or return; 805 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 806 $av = eval { (Storable::thaw $av)->{objs} };
820 } 807 }
821 808
809 warn sprintf "loading %s (%d)\n",
810 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 811 return ($data, $av);
823} 812}
824 813
825############################################################################# 814#############################################################################
826# command handling &c 815# command handling &c
851=cut 840=cut
852 841
853sub register_extcmd { 842sub register_extcmd {
854 my ($name, $cb) = @_; 843 my ($name, $cb) = @_;
855 844
856 my $caller = caller;
857 #warn "registering extcmd '$name' to '$caller'";
858
859 $EXTCMD{$name} = [$cb, $caller]; 845 $EXTCMD{$name} = $cb;
860} 846}
861 847
862cf::player->attach ( 848cf::player->attach (
863 on_command => sub { 849 on_command => sub {
864 my ($pl, $name, $params) = @_; 850 my ($pl, $name, $params) = @_;
877 863
878 my $msg = eval { from_json $buf }; 864 my $msg = eval { from_json $buf };
879 865
880 if (ref $msg) { 866 if (ref $msg) {
881 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 867 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882 if (my %reply = $cb->[0]->($pl, $msg)) { 868 if (my %reply = $cb->($pl, $msg)) {
883 $pl->ext_reply ($msg->{msgid}, %reply); 869 $pl->ext_reply ($msg->{msgid}, %reply);
884 } 870 }
885 } 871 }
886 } else { 872 } else {
887 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 873 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889 875
890 cf::override; 876 cf::override;
891 }, 877 },
892); 878);
893 879
894sub register {
895 my ($base, $pkg) = @_;
896
897 #TODO
898}
899
900sub load_extension { 880sub load_extension {
901 my ($path) = @_; 881 my ($path) = @_;
902 882
903 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 883 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
904 my $base = $1; 884 my $base = $1;
905 my $pkg = $1; 885 my $pkg = $1;
906 $pkg =~ s/[^[:word:]]/_/g; 886 $pkg =~ s/[^[:word:]]/_/g;
907 $pkg = "ext::$pkg"; 887 $pkg = "ext::$pkg";
908 888
909 warn "loading '$path' into '$pkg'\n"; 889 warn "... loading '$path' into '$pkg'\n";
910 890
911 open my $fh, "<:utf8", $path 891 open my $fh, "<:utf8", $path
912 or die "$path: $!"; 892 or die "$path: $!";
913 893
914 my $source = 894 my $source =
915 "package $pkg; use strict; use utf8;\n" 895 "package $pkg; use strict; use utf8;\n"
916 . "#line 1 \"$path\"\n{\n" 896 . "#line 1 \"$path\"\n{\n"
917 . (do { local $/; <$fh> }) 897 . (do { local $/; <$fh> })
918 . "\n};\n1"; 898 . "\n};\n1";
919 899
920 eval $source 900 unless (eval $source) {
921 or die $@ ? "$path: $@\n" 901 my $msg = $@ ? "$path: $@\n"
922 : "extension disabled.\n"; 902 : "extension disabled.\n";
923 903 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924 push @exts, $pkg; 904 warn $@;
925 $ext_pkg{$base} = $pkg; 905 warn "mandatory extension failed to load, exiting.\n";
926 906 exit 1;
927# no strict 'refs'; 907 }
928# @{"$pkg\::ISA"} = ext::; 908 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# } 909 }
943 910
944 # remove commands 911 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} 912}
969 913
970sub load_extensions { 914sub load_extensions {
971 for my $ext (<$LIBDIR/*.ext>) { 915 for my $ext (<$LIBDIR/*.ext>) {
972 next unless -r $ext; 916 next unless -r $ext;
976 } or warn "$ext not loaded: $@"; 920 } or warn "$ext not loaded: $@";
977 } 921 }
978} 922}
979 923
980############################################################################# 924#############################################################################
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 925
1018=head2 CORE EXTENSIONS 926=head2 CORE EXTENSIONS
1019 927
1020Functions and methods that extend core crossfire objects. 928Functions and methods that extend core crossfire objects.
1021 929
930=cut
931
932package cf::player;
933
934use Coro::AIO;
935
1022=head3 cf::player 936=head3 cf::player
1023 937
1024=over 4 938=over 4
1025 939
1026=item cf::player::exists $login 940=item cf::player::find $login
1027 941
1028Returns true when the given account exists. 942Returns the given player object, loading it if necessary (might block).
1029 943
1030=cut 944=cut
1031 945
1032sub cf::player::exists($) { 946sub playerdir($) {
1033 cf::player::find $_[0] 947 cf::localdir
1034 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 948 . "/"
949 . cf::playerdir
950 . "/"
951 . (ref $_[0] ? $_[0]->ob->name : $_[0])
952}
953
954sub path($) {
955 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
956
957 (playerdir $login) . "/$login.pl"
958}
959
960sub find_active($) {
961 $cf::PLAYER{$_[0]}
962 and $cf::PLAYER{$_[0]}->active
963 and $cf::PLAYER{$_[0]}
964}
965
966sub exists($) {
967 my ($login) = @_;
968
969 $cf::PLAYER{$login}
970 or cf::sync_job { !aio_stat path $login }
971}
972
973sub find($) {
974 return $cf::PLAYER{$_[0]} || do {
975 my $login = $_[0];
976
977 my $guard = cf::lock_acquire "user_find:$login";
978
979 $cf::PLAYER{$_[0]} || do {
980 my $pl = load_pl path $login
981 or return;
982 $cf::PLAYER{$login} = $pl
983 }
984 }
985}
986
987sub save($) {
988 my ($pl) = @_;
989
990 return if $pl->{deny_save};
991
992 my $path = path $pl;
993 my $guard = cf::lock_acquire "user_save:$path";
994
995 return if $pl->{deny_save};
996
997 aio_mkdir playerdir $pl, 0770;
998 $pl->{last_save} = $cf::RUNTIME;
999
1000 $pl->save_pl ($path);
1001 Coro::cede;
1002}
1003
1004sub new($) {
1005 my ($login) = @_;
1006
1007 my $self = create;
1008
1009 $self->ob->name ($login);
1010 $self->{deny_save} = 1;
1011
1012 $cf::PLAYER{$login} = $self;
1013
1014 $self
1015}
1016
1017=item $pl->quit_character
1018
1019Nukes the player without looking back. If logged in, the connection will
1020be destroyed. May block for a long time.
1021
1022=cut
1023
1024sub quit_character {
1025 my ($pl) = @_;
1026
1027 my $name = $pl->ob->name;
1028
1029 $pl->{deny_save} = 1;
1030 $pl->password ("*"); # this should lock out the player until we nuked the dir
1031
1032 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1033 $pl->deactivate;
1034 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1035 $pl->ns->destroy if $pl->ns;
1036
1037 my $path = playerdir $pl;
1038 my $temp = "$path~$cf::RUNTIME~deleting~";
1039 aio_rename $path, $temp;
1040 delete $cf::PLAYER{$pl->ob->name};
1041 $pl->destroy;
1042
1043 my $prefix = qr<^~\Q$name\E/>;
1044
1045 # nuke player maps
1046 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1047
1048 IO::AIO::aio_rmtree $temp;
1049}
1050
1051=item $pl->kick
1052
1053Kicks a player out of the game. This destroys the connection.
1054
1055=cut
1056
1057sub kick {
1058 my ($pl, $kicker) = @_;
1059
1060 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1061 $pl->killer ("kicked");
1062 $pl->ns->destroy;
1063}
1064
1065=item cf::player::list_logins
1066
1067Returns am arrayref of all valid playernames in the system, can take a
1068while and may block, so not sync_job-capable, ever.
1069
1070=cut
1071
1072sub list_logins {
1073 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1074 or return [];
1075
1076 my @logins;
1077
1078 for my $login (@$dirs) {
1079 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1080 aio_read $fh, 0, 512, my $buf, 0 or next;
1081 $buf !~ /^password -------------$/m or next; # official not-valid tag
1082
1083 utf8::decode $login;
1084 push @logins, $login;
1085 }
1086
1087 \@logins
1088}
1089
1090=item $player->maps
1091
1092Returns an arrayref of map paths that are private for this
1093player. May block.
1094
1095=cut
1096
1097sub maps($) {
1098 my ($pl) = @_;
1099
1100 $pl = ref $pl ? $pl->ob->name : $pl;
1101
1102 my $files = aio_readdir playerdir $pl
1103 or return;
1104
1105 my @paths;
1106
1107 for (@$files) {
1108 utf8::decode $_;
1109 next if /\.(?:pl|pst)$/;
1110 next unless /^$PATH_SEP/o;
1111
1112 push @paths, cf::map::normalise "~$pl/$_";
1113 }
1114
1115 \@paths
1035} 1116}
1036 1117
1037=item $player->ext_reply ($msgid, $msgtype, %msg) 1118=item $player->ext_reply ($msgid, $msgtype, %msg)
1038 1119
1039Sends an ext reply to the player. 1120Sends an ext reply to the player.
1040 1121
1041=cut 1122=cut
1042 1123
1043sub cf::player::ext_reply($$$%) { 1124sub ext_reply($$$%) {
1044 my ($self, $id, %msg) = @_; 1125 my ($self, $id, %msg) = @_;
1045 1126
1046 $msg{msgid} = $id; 1127 $msg{msgid} = $id;
1047 1128
1048 $self->send ("ext " . to_json \%msg); 1129 $self->send ("ext " . cf::to_json \%msg);
1049} 1130}
1131
1132package cf;
1050 1133
1051=back 1134=back
1052 1135
1053 1136
1054=head3 cf::map 1137=head3 cf::map
1060package cf::map; 1143package cf::map;
1061 1144
1062use Fcntl; 1145use Fcntl;
1063use Coro::AIO; 1146use Coro::AIO;
1064 1147
1148use overload
1149 '""' => \&as_string,
1150 fallback => 1;
1151
1065our $MAX_RESET = 7200; 1152our $MAX_RESET = 3600;
1066our $DEFAULT_RESET = 3600; 1153our $DEFAULT_RESET = 3000;
1067 1154
1068sub generate_random_map { 1155sub generate_random_map {
1069 my ($path, $rmp) = @_; 1156 my ($self, $rmp) = @_;
1070
1071 # mit "rum" bekleckern, nicht 1157 # mit "rum" bekleckern, nicht
1072 cf::map::_create_random_map 1158 $self->_create_random_map (
1073 $path,
1074 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1159 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1160 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1161 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077 $rmp->{exit_on_final_map}, 1162 $rmp->{exit_on_final_map},
1078 $rmp->{xsize}, $rmp->{ysize}, 1163 $rmp->{xsize}, $rmp->{ysize},
1079 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1164 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1165 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1166 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1167 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1168 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084 (cf::region::find $rmp->{region}) 1169 (cf::region::find $rmp->{region}), $rmp->{custom}
1170 )
1171}
1172
1173=item cf::map->register ($regex, $prio)
1174
1175Register a handler for the map path matching the given regex at the
1176givne priority (higher is better, built-in handlers have priority 0, the
1177default).
1178
1179=cut
1180
1181sub register {
1182 my (undef, $regex, $prio) = @_;
1183 my $pkg = caller;
1184
1185 no strict;
1186 push @{"$pkg\::ISA"}, __PACKAGE__;
1187
1188 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1189}
1190
1191# also paths starting with '/'
1192$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1193
1194sub thawer_merge {
1195 my ($self, $merge) = @_;
1196
1197 # we have to keep some variables in memory intact
1198 local $self->{path};
1199 local $self->{load_path};
1200 local $self->{deny_save};
1201 local $self->{deny_reset};
1202
1203 $self->SUPER::thawer_merge ($merge);
1204}
1205
1206sub normalise {
1207 my ($path, $base) = @_;
1208
1209 $path = "$path"; # make sure its a string
1210
1211 $path =~ s/\.map$//;
1212
1213 # map plan:
1214 #
1215 # /! non-realised random map exit (special hack!)
1216 # {... are special paths that are not being touched
1217 # ?xxx/... are special absolute paths
1218 # ?random/... random maps
1219 # /... normal maps
1220 # ~user/... per-player map of a specific user
1221
1222 $path =~ s/$PATH_SEP/\//go;
1223
1224 # treat it as relative path if it starts with
1225 # something that looks reasonable
1226 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1227 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1228
1229 $base =~ s{[^/]+/?$}{};
1230 $path = "$base/$path";
1231 }
1232
1233 for ($path) {
1234 redo if s{//}{/};
1235 redo if s{/\.?/}{/};
1236 redo if s{/[^/]+/\.\./}{/};
1237 }
1238
1239 $path
1240}
1241
1242sub new_from_path {
1243 my (undef, $path, $base) = @_;
1244
1245 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1246
1247 $path = normalise $path, $base;
1248
1249 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1250 if ($path =~ $EXT_MAP{$pkg}[1]) {
1251 my $self = bless cf::map::new, $pkg;
1252 $self->{path} = $path; $self->path ($path);
1253 $self->init; # pass $1 etc.
1254 return $self;
1255 }
1256 }
1257
1258 Carp::carp "unable to resolve path '$path' (base '$base').";
1259 ()
1260}
1261
1262sub init {
1263 my ($self) = @_;
1264
1265 $self
1266}
1267
1268sub as_string {
1269 my ($self) = @_;
1270
1271 "$self->{path}"
1272}
1273
1274# the displayed name, this is a one way mapping
1275sub visible_name {
1276 &as_string
1277}
1278
1279# the original (read-only) location
1280sub load_path {
1281 my ($self) = @_;
1282
1283 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1284}
1285
1286# the temporary/swap location
1287sub save_path {
1288 my ($self) = @_;
1289
1290 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1292}
1293
1294# the unique path, undef == no special unique path
1295sub uniq_path {
1296 my ($self) = @_;
1297
1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1085} 1300}
1086 1301
1087# and all this just because we cannot iterate over 1302# and all this just because we cannot iterate over
1088# all maps in C++... 1303# all maps in C++...
1089sub change_all_map_light { 1304sub change_all_map_light {
1090 my ($change) = @_; 1305 my ($change) = @_;
1091 1306
1092 $_->change_map_light ($change) for values %cf::MAP; 1307 $_->change_map_light ($change)
1308 for grep $_->outdoor, values %cf::MAP;
1093} 1309}
1094 1310
1311sub unlink_save {
1312 my ($self) = @_;
1313
1314 utf8::encode (my $save = $self->save_path);
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1317}
1318
1095sub try_load_header($) { 1319sub load_header_from($) {
1096 my ($path) = @_; 1320 my ($self, $path) = @_;
1097 1321
1098 utf8::encode $path; 1322 utf8::encode $path;
1099 aio_open $path, O_RDONLY, 0 1323 #aio_open $path, O_RDONLY, 0
1324 # or return;
1325
1326 $self->_load_header ($path)
1100 or return; 1327 or return;
1101 1328
1102 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
1103 or return; 1372 or return;
1373 $self->prepare_orig;
1374 }
1104 1375
1105 $map->load_header ($path) 1376 1
1106 or return;
1107
1108 $map->{load_path} = $path;
1109
1110 $map
1111} 1377}
1112 1378
1379sub find;
1113sub find_map { 1380sub find {
1114 my ($path, $origin) = @_; 1381 my ($path, $origin) = @_;
1115 1382
1116 #warn "find_map<$path,$origin>\n";#d#
1117
1118 $path = new cf::path $path, $origin && $origin->path; 1383 $path = normalise $path, $origin && $origin->path;
1119 my $key = $path->as_string;
1120 1384
1385 cf::lock_wait "map_find:$path";
1386
1121 $cf::MAP{$key} || do { 1387 $cf::MAP{$path} || do {
1122 # do it the slow way 1388 my $guard = cf::lock_acquire "map_find:$path";
1123 my $map = try_load_header $path->save_path; 1389 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; 1390 or return;
1137 1391
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); 1392 $map->{last_save} = $cf::RUNTIME;
1149 1393
1150 if ($map->should_reset) { 1394 $map->load_header
1395 or return;
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;
1151 $map->reset; 1400 $map->reset;
1152 $map = find_map $path; 1401 undef $guard;
1402 return find $path;
1153 } 1403 }
1154 1404
1155 $cf::MAP{$key} = $map 1405 $cf::MAP{$path} = $map
1156 } 1406 }
1157} 1407}
1408
1409sub pre_load { }
1410sub post_load { }
1158 1411
1159sub load { 1412sub load {
1160 my ($self) = @_; 1413 my ($self) = @_;
1161 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
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1420 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1421
1164 $self->in_memory (cf::MAP_LOADING); 1422 $self->in_memory (cf::MAP_LOADING);
1165 1423
1166 my $path = $self->{path};
1167
1168 $self->alloc; 1424 $self->alloc;
1425
1426 $self->pre_load;
1427
1169 $self->load_objects ($self->{load_path}, 1) 1428 $self->_load_objects ($self->{load_path}, 1)
1170 or return; 1429 or return;
1171 1430
1172 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173 if delete $self->{load_original}; 1432 if delete $self->{load_original};
1174 1433
1175 if (my $uniq = $path->uniq_path) { 1434 if (my $uniq = $self->uniq_path) {
1176 utf8::encode $uniq; 1435 utf8::encode $uniq;
1177 if (aio_open $uniq, O_RDONLY, 0) { 1436 if (aio_open $uniq, O_RDONLY, 0) {
1178 $self->clear_unique_items; 1437 $self->clear_unique_items;
1179 $self->load_objects ($uniq, 0); 1438 $self->_load_objects ($uniq, 0);
1180 } 1439 }
1181 } 1440 }
1441
1442 Coro::cede;
1182 1443
1183 # now do the right thing for maps 1444 # now do the right thing for maps
1184 $self->link_multipart_objects; 1445 $self->link_multipart_objects;
1185 1446
1186 if ($self->{path}->is_style_map) { 1447 unless ($self->{deny_activate}) {
1187 $self->{deny_save} = 1; 1448 $self->decay_objects;
1188 $self->{deny_reset} = 1;
1189 } else {
1190 $self->fix_auto_apply; 1449 $self->fix_auto_apply;
1191 $self->decay_objects;
1192 $self->update_buttons; 1450 $self->update_buttons;
1451 Coro::cede;
1193 $self->set_darkness_map; 1452 $self->set_darkness_map;
1194 $self->difficulty ($self->estimate_difficulty) 1453 $self->difficulty ($self->estimate_difficulty)
1195 unless $self->difficulty; 1454 unless $self->difficulty;
1455 Coro::cede;
1196 $self->activate; 1456 $self->activate;
1197 } 1457 }
1198 1458
1459 $self->post_load;
1460
1199 $self->in_memory (cf::MAP_IN_MEMORY); 1461 $self->in_memory (cf::MAP_IN_MEMORY);
1200} 1462}
1201 1463
1202sub 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 {
1203 my ($path, $origin) = @_; 1498 my ($path, $origin) = @_;
1204 1499
1205 #warn "load_map_sync<$path, $origin>\n";#d# 1500 cf::sync_job { find $path, $origin }
1501}
1206 1502
1207 cf::sync_job { 1503sub do_load_sync {
1208 my $map = cf::map::find_map $path, $origin 1504 my ($map) = @_;
1209 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;
1210 $map->load; 1527 $map->load;
1211 $map 1528
1529 delete $MAP_PREFETCH{$path};
1530 }
1531 }
1532 undef $MAP_PREFETCHER;
1212 } 1533 };
1534 $MAP_PREFETCHER->prio (6);
1535
1536 ()
1213} 1537}
1214 1538
1215sub save { 1539sub save {
1216 my ($self) = @_; 1540 my ($self) = @_;
1217 1541
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220 1543
1221 $self->{last_save} = $cf::RUNTIME; 1544 $self->{last_save} = $cf::RUNTIME;
1222 1545
1223 return unless $self->dirty; 1546 return unless $self->dirty;
1224 1547
1548 my $save = $self->save_path; utf8::encode $save;
1549 my $uniq = $self->uniq_path; utf8::encode $uniq;
1550
1225 $self->{load_path} = $save; 1551 $self->{load_path} = $save;
1226 1552
1227 return if $self->{deny_save}; 1553 return if $self->{deny_save};
1228 1554
1555 local $self->{last_access} = $self->last_access;#d#
1556
1557 cf::async {
1558 $_->contr->save for $self->players;
1559 };
1560
1229 if ($uniq) { 1561 if ($uniq) {
1230 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231 $self->save_objects ($uniq, cf::IO_UNIQUES); 1563 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1232 } else { 1564 } else {
1233 $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);
1234 } 1566 }
1235} 1567}
1236 1568
1237sub swap_out { 1569sub swap_out {
1238 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;
1239 1576
1240 return if $self->players; 1577 return if $self->players;
1241 return if $self->in_memory != cf::MAP_IN_MEMORY; 1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1242 return if $self->{deny_save}; 1579 return if $self->{deny_save};
1243 1580
1244 $self->save;
1245 $self->clear; 1581 $self->clear;
1246 $self->in_memory (cf::MAP_SWAPPED); 1582 $self->in_memory (cf::MAP_SWAPPED);
1247} 1583}
1248 1584
1249sub reset_at { 1585sub reset_at {
1250 my ($self) = @_; 1586 my ($self) = @_;
1251 1587
1252 # TODO: safety, remove and allow resettable per-player maps 1588 # TODO: safety, remove and allow resettable per-player maps
1253 return 1e99 if $self->{path}{user_rel}; 1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1254 return 1e99 if $self->{deny_reset}; 1590 return 1e99 if $self->{deny_reset};
1255 1591
1256 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1593 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258 1594
1263 my ($self) = @_; 1599 my ($self) = @_;
1264 1600
1265 $self->reset_at <= $cf::RUNTIME 1601 $self->reset_at <= $cf::RUNTIME
1266} 1602}
1267 1603
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 { 1604sub reset {
1290 my ($self) = @_; 1605 my ($self) = @_;
1291 1606
1607 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608
1292 return if $self->players; 1609 return if $self->players;
1293 return if $self->{path}{user_rel};#d# 1610 return if $self->isa ("ext::map_per_player");#d#
1294 1611
1295 warn "resetting map ", $self->path;#d# 1612 warn "resetting map ", $self->path;#d#
1296 1613
1614 $self->in_memory (cf::MAP_SWAPPED);
1615
1616 # need to save uniques path
1617 unless ($self->{deny_save}) {
1618 my $uniq = $self->uniq_path; utf8::encode $uniq;
1619
1620 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1621 if $uniq;
1622 }
1623
1297 delete $cf::MAP{$self->path}; 1624 delete $cf::MAP{$self->path};
1625
1626 $self->clear;
1298 1627
1299 $_->clear_links_to ($self) for values %cf::MAP; 1628 $_->clear_links_to ($self) for values %cf::MAP;
1300 1629
1301 $self->unlink_save; 1630 $self->unlink_save;
1302 $self->destroy; 1631 $self->destroy;
1305my $nuke_counter = "aaaa"; 1634my $nuke_counter = "aaaa";
1306 1635
1307sub nuke { 1636sub nuke {
1308 my ($self) = @_; 1637 my ($self) = @_;
1309 1638
1639 delete $cf::MAP{$self->path};
1640
1641 $self->unlink_save;
1642
1643 bless $self, "cf::map";
1644 delete $self->{deny_reset};
1310 $self->{deny_save} = 1; 1645 $self->{deny_save} = 1;
1311 $self->reset_timeout (1); 1646 $self->reset_timeout (1);
1312 $self->rename ("{nuke}/" . ($nuke_counter++)); 1647 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648
1649 $cf::MAP{$self->path} = $self;
1650
1313 $self->reset; # polite request, might not happen 1651 $self->reset; # polite request, might not happen
1314} 1652}
1315 1653
1316sub customise_for { 1654=item cf::map::unique_maps
1317 my ($map, $ob) = @_;
1318 1655
1319 if ($map->per_player) { 1656Returns an arrayref of paths of all shared maps that have
1320 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1657instantiated unique items. May block.
1321 }
1322 1658
1323 $map 1659=cut
1324}
1325 1660
1326sub emergency_save { 1661sub unique_maps() {
1327 local $cf::FREEZE = 1; 1662 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1663 or return;
1328 1664
1329 warn "enter emergency map save\n"; 1665 my @paths;
1330 1666
1331 cf::sync_job { 1667 for (@$files) {
1332 warn "begin emergency map save\n"; 1668 utf8::decode $_;
1333 $_->save for values %cf::MAP; 1669 next if /\.pst$/;
1670 next unless /^$PATH_SEP/o;
1671
1672 push @paths, cf::map::normalise $_;
1334 }; 1673 }
1335 1674
1336 warn "end emergency map save\n"; 1675 \@paths
1337} 1676}
1338 1677
1339package cf; 1678package cf;
1340 1679
1341=back 1680=back
1342 1681
1682=head3 cf::object
1683
1684=cut
1685
1686package cf::object;
1687
1688=over 4
1689
1690=item $ob->inv_recursive
1691
1692Returns the inventory of the object _and_ their inventories, recursively.
1693
1694=cut
1695
1696sub inv_recursive_;
1697sub inv_recursive_ {
1698 map { $_, inv_recursive_ $_->inv } @_
1699}
1700
1701sub inv_recursive {
1702 inv_recursive_ inv $_[0]
1703}
1704
1705package cf;
1706
1707=back
1343 1708
1344=head3 cf::object::player 1709=head3 cf::object::player
1345 1710
1346=over 4 1711=over 4
1347 1712
1387 1752
1388=item $player_object->enter_link 1753=item $player_object->enter_link
1389 1754
1390Freezes the player and moves him/her to a special map (C<{link}>). 1755Freezes the player and moves him/her to a special map (C<{link}>).
1391 1756
1392The player should be reaosnably safe there for short amounts of time. You 1757The player should be reasonably safe there for short amounts of time. You
1393I<MUST> call C<leave_link> as soon as possible, though. 1758I<MUST> call C<leave_link> as soon as possible, though.
1394 1759
1760Will never block.
1761
1395=item $player_object->leave_link ($map, $x, $y) 1762=item $player_object->leave_link ($map, $x, $y)
1396 1763
1397Moves the player out of the specila link map onto the given map. If the 1764Moves 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 1765map. 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, 1766to the location he/she was before the call to C<enter_link>, or, if that
1400to the emergency map position. 1767fails, to the emergency map position.
1401 1768
1402Might block. 1769Might block.
1403 1770
1404=cut 1771=cut
1772
1773sub link_map {
1774 unless ($LINK_MAP) {
1775 $LINK_MAP = cf::map::find "{link}"
1776 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1777 $LINK_MAP->load;
1778 }
1779
1780 $LINK_MAP
1781}
1405 1782
1406sub cf::object::player::enter_link { 1783sub cf::object::player::enter_link {
1407 my ($self) = @_; 1784 my ($self) = @_;
1408 1785
1409 return if $self->map == $LINK_MAP; 1786 $self->deactivate_recursive;
1410 1787
1788 return if UNIVERSAL::isa $self->map, "ext::map_link";
1789
1411 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1790 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1412 if $self->map; 1791 if $self->map;
1413 1792
1414 $self->enter_map ($LINK_MAP, 20, 20); 1793 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1415 $self->deactivate_recursive;
1416} 1794}
1417 1795
1418sub cf::object::player::leave_link { 1796sub cf::object::player::leave_link {
1419 my ($self, $map, $x, $y) = @_; 1797 my ($self, $map, $x, $y) = @_;
1420 1798
1421 my $link_pos = delete $self->{_link_pos}; 1799 my $link_pos = delete $self->{_link_pos};
1422 1800
1423 unless ($map) { 1801 unless ($map) {
1424 # restore original map position 1802 # restore original map position
1425 ($map, $x, $y) = @{ $link_pos || [] }; 1803 ($map, $x, $y) = @{ $link_pos || [] };
1426 $map = cf::map::find_map $map; 1804 $map = cf::map::find $map;
1427 1805
1428 unless ($map) { 1806 unless ($map) {
1429 ($map, $x, $y) = @$EMERGENCY_POSITION; 1807 ($map, $x, $y) = @$EMERGENCY_POSITION;
1430 $map = cf::map::find_map $map 1808 $map = cf::map::find $map
1431 or die "FATAL: cannot load emergency map\n"; 1809 or die "FATAL: cannot load emergency map\n";
1432 } 1810 }
1433 } 1811 }
1434 1812
1435 ($x, $y) = (-1, -1) 1813 ($x, $y) = (-1, -1)
1438 # use -1 or undef as default coordinates, not 0, 0 1816 # use -1 or undef as default coordinates, not 0, 0
1439 ($x, $y) = ($map->enter_x, $map->enter_y) 1817 ($x, $y) = ($map->enter_x, $map->enter_y)
1440 if $x <=0 && $y <= 0; 1818 if $x <=0 && $y <= 0;
1441 1819
1442 $map->load; 1820 $map->load;
1821 $map->load_diag;
1443 1822
1823 return unless $self->contr->active;
1444 $self->activate_recursive; 1824 $self->activate_recursive;
1825
1826 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1445 $self->enter_map ($map, $x, $y); 1827 $self->enter_map ($map, $x, $y);
1446} 1828}
1447 1829
1830cf::player->attach (
1831 on_logout => sub {
1832 my ($pl) = @_;
1833
1834 # abort map switching before logout
1835 if ($pl->ob->{_link_pos}) {
1836 cf::sync_job {
1837 $pl->ob->leave_link
1838 };
1839 }
1840 },
1841 on_login => sub {
1842 my ($pl) = @_;
1843
1844 # try to abort aborted map switching on player login :)
1845 # should happen only on crashes
1846 if ($pl->ob->{_link_pos}) {
1847 $pl->ob->enter_link;
1848 (async {
1849 $pl->ob->reply (undef,
1850 "There was an internal problem at your last logout, "
1851 . "the server will try to bring you to your intended destination in a second.",
1852 cf::NDI_RED);
1853 # we need this sleep as the login has a concurrent enter_exit running
1854 # and this sleep increases chances of the player not ending up in scorn
1855 Coro::Timer::sleep 1;
1856 $pl->ob->leave_link;
1857 })->prio (2);
1858 }
1859 },
1860);
1861
1448=item $player_object->goto_map ($map, $x, $y) 1862=item $player_object->goto ($path, $x, $y)
1449 1863
1450=cut 1864=cut
1451 1865
1452sub cf::object::player::goto_map { 1866sub cf::object::player::goto {
1453 my ($self, $path, $x, $y) = @_; 1867 my ($self, $path, $x, $y) = @_;
1454 1868
1455 $self->enter_link; 1869 $self->enter_link;
1456 1870
1457 (Coro::async { 1871 (async {
1458 $path = new cf::path $path; 1872 my $map = eval {
1459
1460 my $map = cf::map::find_map $path->as_string; 1873 my $map = cf::map::find $path;
1461 $map = $map->customise_for ($self) if $map; 1874 $map = $map->customise_for ($self) if $map;
1462
1463 warn "entering ", $map->path, " at ($x, $y)\n"
1464 if $map; 1875 $map
1465 1876 } or
1466 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1877 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1467 1878
1468 $self->leave_link ($map, $x, $y); 1879 $self->leave_link ($map, $x, $y);
1469 })->prio (1); 1880 })->prio (1);
1470} 1881}
1471 1882
1475 1886
1476sub parse_random_map_params { 1887sub parse_random_map_params {
1477 my ($spec) = @_; 1888 my ($spec) = @_;
1478 1889
1479 my $rmp = { # defaults 1890 my $rmp = { # defaults
1480 xsize => 10, 1891 xsize => (cf::rndm 15, 40),
1481 ysize => 10, 1892 ysize => (cf::rndm 15, 40),
1893 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1894 #layout => string,
1482 }; 1895 };
1483 1896
1484 for (split /\n/, $spec) { 1897 for (split /\n/, $spec) {
1485 my ($k, $v) = split /\s+/, $_, 2; 1898 my ($k, $v) = split /\s+/, $_, 2;
1486 1899
1490 $rmp 1903 $rmp
1491} 1904}
1492 1905
1493sub prepare_random_map { 1906sub prepare_random_map {
1494 my ($exit) = @_; 1907 my ($exit) = @_;
1908
1909 my $guard = cf::lock_acquire "exit_prepare:$exit";
1495 1910
1496 # all this does is basically replace the /! path by 1911 # all this does is basically replace the /! path by
1497 # a new random map path (?random/...) with a seed 1912 # a new random map path (?random/...) with a seed
1498 # that depends on the exit object 1913 # that depends on the exit object
1499 1914
1500 my $rmp = parse_random_map_params $exit->msg; 1915 my $rmp = parse_random_map_params $exit->msg;
1501 1916
1502 if ($exit->map) { 1917 if ($exit->map) {
1503 $rmp->{region} = $exit->map->region_name; 1918 $rmp->{region} = $exit->region->name;
1504 $rmp->{origin_map} = $exit->map->path; 1919 $rmp->{origin_map} = $exit->map->path;
1505 $rmp->{origin_x} = $exit->x; 1920 $rmp->{origin_x} = $exit->x;
1506 $rmp->{origin_y} = $exit->y; 1921 $rmp->{origin_y} = $exit->y;
1507 } 1922 }
1508 1923
1509 $rmp->{random_seed} ||= $exit->random_seed; 1924 $rmp->{random_seed} ||= $exit->random_seed;
1510 1925
1511 my $data = cf::to_json $rmp; 1926 my $data = cf::to_json $rmp;
1512 my $md5 = Digest::MD5::md5_hex $data; 1927 my $md5 = Digest::MD5::md5_hex $data;
1928 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1513 1929
1514 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1930 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1515 aio_write $fh, 0, (length $data), $data, 0; 1931 aio_write $fh, 0, (length $data), $data, 0;
1932 undef $fh;
1933 aio_rename "$meta~", $meta;
1516 1934
1517 $exit->slaying ("?random/$md5"); 1935 $exit->slaying ("?random/$md5");
1518 $exit->msg (undef); 1936 $exit->msg (undef);
1519 } 1937 }
1520} 1938}
1522sub cf::object::player::enter_exit { 1940sub cf::object::player::enter_exit {
1523 my ($self, $exit) = @_; 1941 my ($self, $exit) = @_;
1524 1942
1525 return unless $self->type == cf::PLAYER; 1943 return unless $self->type == cf::PLAYER;
1526 1944
1945 if ($exit->slaying eq "/!") {
1946 #TODO: this should de-fi-ni-te-ly not be a sync-job
1947 cf::sync_job { prepare_random_map $exit };
1948 }
1949
1950 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951 my $hp = $exit->stats->hp;
1952 my $sp = $exit->stats->sp;
1953
1527 $self->enter_link; 1954 $self->enter_link;
1528 1955
1529 (Coro::async { 1956 (async {
1957 $self->deactivate_recursive; # just to be sure
1530 unless (eval { 1958 unless (eval {
1531 1959 $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 1960
1538 1; 1961 1;
1539 }) { 1962 }) {
1540 $self->message ("Something went wrong deep within the crossfire server. " 1963 $self->message ("Something went wrong deep within the crossfire server. "
1541 . "I'll try to bring you back to the map you were before. " 1964 . "I'll try to bring you back to the map you were before. "
1542 . "Please report this to the dungeon master", 1965 . "Please report this to the dungeon master!",
1543 cf::NDI_UNIQUE | cf::NDI_RED); 1966 cf::NDI_UNIQUE | cf::NDI_RED);
1544 1967
1545 warn "ERROR in enter_exit: $@"; 1968 warn "ERROR in enter_exit: $@";
1546 $self->leave_link; 1969 $self->leave_link;
1547 } 1970 }
1561 1984
1562sub cf::client::send_drawinfo { 1985sub cf::client::send_drawinfo {
1563 my ($self, $text, $flags) = @_; 1986 my ($self, $text, $flags) = @_;
1564 1987
1565 utf8::encode $text; 1988 utf8::encode $text;
1566 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 1989 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1567} 1990}
1568 1991
1569 1992
1570=item $success = $client->query ($flags, "text", \&cb) 1993=item $success = $client->query ($flags, "text", \&cb)
1571 1994
1598 on_reply => sub { 2021 on_reply => sub {
1599 my ($ns, $msg) = @_; 2022 my ($ns, $msg) = @_;
1600 2023
1601 # this weird shuffling is so that direct followup queries 2024 # this weird shuffling is so that direct followup queries
1602 # get handled first 2025 # get handled first
1603 my $queue = delete $ns->{query_queue}; 2026 my $queue = delete $ns->{query_queue}
2027 or return; # be conservative, not sure how that can happen, but we saw a crash here
1604 2028
1605 (shift @$queue)->[1]->($msg); 2029 (shift @$queue)->[1]->($msg);
2030 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1606 2031
1607 push @{ $ns->{query_queue} }, @$queue; 2032 push @{ $ns->{query_queue} }, @$queue;
1608 2033
1609 if (@{ $ns->{query_queue} } == @$queue) { 2034 if (@{ $ns->{query_queue} } == @$queue) {
1610 if (@$queue) { 2035 if (@$queue) {
1614 } 2039 }
1615 } 2040 }
1616 }, 2041 },
1617); 2042);
1618 2043
1619=item $client->coro (\&cb) 2044=item $client->async (\&cb)
1620 2045
1621Create a new coroutine, running the specified callback. The coroutine will 2046Create a new coroutine, running the specified callback. The coroutine will
1622be automatically cancelled when the client gets destroyed (e.g. on logout, 2047be automatically cancelled when the client gets destroyed (e.g. on logout,
1623or loss of connection). 2048or loss of connection).
1624 2049
1625=cut 2050=cut
1626 2051
1627sub cf::client::coro { 2052sub cf::client::async {
1628 my ($self, $cb) = @_; 2053 my ($self, $cb) = @_;
1629 2054
1630 my $coro; $coro = async { 2055 my $coro = &Coro::async ($cb);
1631 eval {
1632 $cb->();
1633 };
1634 warn $@ if $@;
1635 };
1636 2056
1637 $coro->on_destroy (sub { 2057 $coro->on_destroy (sub {
1638 delete $self->{_coro}{$coro+0}; 2058 delete $self->{_coro}{$coro+0};
1639 }); 2059 });
1640 2060
1776The parameter C<$family> should best start with the name of the extension 2196The parameter C<$family> should best start with the name of the extension
1777using it, it should be unique. 2197using it, it should be unique.
1778 2198
1779=over 4 2199=over 4
1780 2200
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 2201=item $value = cf::db_get $family => $key
1788 2202
1789Returns a single value from the database 2203Returns 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 2204
1796=item cf::db_put $family => $key => $value 2205=item cf::db_put $family => $key => $value
1797 2206
1798Stores the given C<$value> in the family hash. Updates are delayed, if you 2207Stores 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 2208
1809=cut 2209=cut
1810 2210
1811our $DB; 2211our $DB;
1812 2212
1813{ 2213sub db_init {
2214 unless ($DB) {
2215 $DB = BDB::db_create $DB_ENV;
2216
2217 cf::sync_job {
2218 eval {
2219 $DB->set_flags (BDB::CHKSUM);
2220
2221 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223 cf::cleanup "db_open(db): $!" if $!;
2224 };
2225 cf::cleanup "db_open(db): $@" if $@;
2226 };
2227
1814 my $path = cf::localdir . "/database.pst"; 2228 my $path = cf::localdir . "/database.pst";
2229 if (stat $path) {
2230 cf::sync_job {
2231 my $pst = Storable::retrieve $path;
1815 2232
1816 sub db_load() { 2233 cf::db_put (board => data => $pst->{board});
1817 warn "loading database $path\n";#d# remove later 2234 cf::db_put (guildrules => data => $pst->{guildrules});
1818 $DB = stat $path ? Storable::retrieve $path : { }; 2235 cf::db_put (rent => balance => $pst->{rent}{balance});
1819 } 2236 BDB::db_env_txn_checkpoint $DB_ENV;
1820 2237
1821 my $pid; 2238 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 } 2239 };
1832 } 2240 }
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 }); 2241 }
2242}
1844 2243
1845 sub db_dirty() {
1846 $dirty = 1;
1847 $idle->start;
1848 }
1849
1850 sub db_get($;$) { 2244sub db_get($$) {
1851 @_ >= 2 2245 my $key = "$_[0]/$_[1]";
1852 ? $DB->{$_[0]}{$_[1]}
1853 : ($DB->{$_[0]} ||= { })
1854 }
1855 2246
2247 cf::sync_job {
2248 BDB::db_get $DB, undef, $key, my $data;
2249
2250 $! ? ()
2251 : Compress::LZF::sthaw $data
2252 }
2253}
2254
1856 sub db_put($$;$) { 2255sub db_put($$$) {
1857 if (@_ >= 3) { 2256 BDB::dbreq_pri 4;
1858 $DB->{$_[0]}{$_[1]} = $_[2]; 2257 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258}
2259
2260#############################################################################
2261# the server's init and main functions
2262
2263sub load_faces {
2264 my $path = sprintf "%s/faces", cf::datadir;
2265
2266 warn "loading faces from $path\n";
2267
2268 my $faces;
2269 0 < aio_load $path, $faces
2270 or die "$path: $!";
2271
2272 Coro::cede;
2273 $faces = Storable::thaw $faces;
2274 Coro::cede;
2275
2276 my $meta = delete $faces->{""};
2277 $meta->{version} == 1
2278 or cf::cleanup "$path: version mismatch, cannot proceed.";
2279
2280 while (my ($face, $info) = each %$faces) {
2281 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2282 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2283 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2284 Coro::cede;
2285 }
2286
2287 while (my ($face, $info) = each %$faces) {
2288 next unless $info->{smooth};
2289 my $idx = cf::face::find $face
2290 or next;
2291 if (my $smooth = cf::face::find $info->{smooth}) {
2292 cf::face::set_smooth $idx, $smooth;
1859 } else { 2293 } else {
1860 $DB->{$_[0]} = $_[1]; 2294 warn "smooth face '$info->{smooth}' not found for face '$face'";
1861 }
1862 db_dirty;
1863 }
1864
1865 cf::global->attach (
1866 prio => 10000,
1867 on_cleanup => sub {
1868 db_sync;
1869 }, 2295 }
1870 ); 2296 Coro::cede;
1871} 2297 }
1872 2298
1873############################################################################# 2299 1
1874# the server's main() 2300}
2301
2302sub reload_resources {
2303 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2304 or die "unable to load regions file\n";#d#
2305 load_faces
2306 or die "unable to load faces\n";#d#
2307}
2308
2309sub init {
2310 reload_resources;
2311}
1875 2312
1876sub cfg_load { 2313sub cfg_load {
1877 open my $fh, "<:utf8", cf::confdir . "/config" 2314 open my $fh, "<:utf8", cf::confdir . "/config"
1878 or return; 2315 or return;
1879 2316
1880 local $/; 2317 local $/;
1881 *CFG = YAML::Syck::Load <$fh>; 2318 *CFG = YAML::Syck::Load <$fh>;
2319
2320 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2321
2322 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2323 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2324
2325 if (exists $CFG{mlockall}) {
2326 eval {
2327 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2328 and die "WARNING: m(un)lockall failed: $!\n";
2329 };
2330 warn $@ if $@;
2331 }
1882} 2332}
1883 2333
1884sub main { 2334sub main {
1885 # we must not ever block the main coroutine 2335 # we must not ever block the main coroutine
1886 local $Coro::idle = sub { 2336 local $Coro::idle = sub {
1887 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2337 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1888 (Coro::unblock_sub { 2338 (async {
1889 Event::one_event; 2339 Event::one_event;
1890 })->(); 2340 })->prio (Coro::PRIO_MAX);
1891 }; 2341 };
1892 2342
1893 cfg_load; 2343 cfg_load;
1894 db_load; 2344 db_init;
1895 load_extensions; 2345 load_extensions;
2346
2347 $TICK_WATCHER->start;
1896 Event::loop; 2348 Event::loop;
1897} 2349}
1898 2350
1899############################################################################# 2351#############################################################################
1900# initialisation 2352# initialisation and cleanup
2353
2354# install some emergency cleanup handlers
2355BEGIN {
2356 for my $signal (qw(INT HUP TERM)) {
2357 Event->signal (
2358 reentrant => 0,
2359 data => WF_AUTOCANCEL,
2360 signal => $signal,
2361 prio => 0,
2362 cb => sub {
2363 cf::cleanup "SIG$signal";
2364 },
2365 );
2366 }
2367}
2368
2369sub emergency_save() {
2370 my $freeze_guard = cf::freeze_mainloop;
2371
2372 warn "enter emergency perl save\n";
2373
2374 cf::sync_job {
2375 # use a peculiar iteration method to avoid tripping on perl
2376 # refcount bugs in for. also avoids problems with players
2377 # and maps saved/destroyed asynchronously.
2378 warn "begin emergency player save\n";
2379 for my $login (keys %cf::PLAYER) {
2380 my $pl = $cf::PLAYER{$login} or next;
2381 $pl->valid or next;
2382 $pl->save;
2383 }
2384 warn "end emergency player save\n";
2385
2386 warn "begin emergency map save\n";
2387 for my $path (keys %cf::MAP) {
2388 my $map = $cf::MAP{$path} or next;
2389 $map->valid or next;
2390 $map->save;
2391 }
2392 warn "end emergency map save\n";
2393
2394 warn "begin emergency database checkpoint\n";
2395 BDB::db_env_txn_checkpoint $DB_ENV;
2396 warn "end emergency database checkpoint\n";
2397 };
2398
2399 warn "leave emergency perl save\n";
2400}
2401
2402sub post_cleanup {
2403 my ($make_core) = @_;
2404
2405 warn Carp::longmess "post_cleanup backtrace"
2406 if $make_core;
2407}
1901 2408
1902sub reload() { 2409sub reload() {
1903 # can/must only be called in main 2410 # can/must only be called in main
1904 if ($Coro::current != $Coro::main) { 2411 if ($Coro::current != $Coro::main) {
1905 warn "can only reload from main coroutine\n"; 2412 warn "can only reload from main coroutine";
1906 return; 2413 return;
1907 } 2414 }
1908 2415
1909 warn "reloading..."; 2416 warn "reloading...";
1910 2417
1911 local $FREEZE = 1; 2418 warn "entering sync_job";
2419
2420 cf::sync_job {
2421 cf::write_runtime; # external watchdog should not bark
1912 cf::emergency_save; 2422 cf::emergency_save;
2423 cf::write_runtime; # external watchdog should not bark
1913 2424
1914 eval { 2425 warn "syncing database to disk";
2426 BDB::db_env_txn_checkpoint $DB_ENV;
2427
1915 # if anything goes wrong in here, we should simply crash as we already saved 2428 # if anything goes wrong in here, we should simply crash as we already saved
1916 2429
1917 # cancel all watchers 2430 warn "cancelling all WF_AUTOCANCEL watchers";
1918 for (Event::all_watchers) { 2431 for (Event::all_watchers) {
1919 $_->cancel if $_->data & WF_AUTOCANCEL; 2432 $_->cancel if $_->data & WF_AUTOCANCEL;
1920 } 2433 }
1921 2434
2435 warn "flushing outstanding aio requests";
2436 for (;;) {
2437 BDB::flush;
2438 IO::AIO::flush;
2439 Coro::cede;
2440 last unless IO::AIO::nreqs || BDB::nreqs;
2441 warn "iterate...";
2442 }
2443
2444 ++$RELOAD;
2445
1922 # cancel all extension coros 2446 warn "cancelling all extension coros";
1923 $_->cancel for values %EXT_CORO; 2447 $_->cancel for values %EXT_CORO;
1924 %EXT_CORO = (); 2448 %EXT_CORO = ();
1925 2449
1926 # unload all extensions 2450 warn "removing commands";
1927 for (@exts) { 2451 %COMMAND = ();
2452
2453 warn "removing ext commands";
2454 %EXTCMD = ();
2455
2456 warn "unloading/nuking all extensions";
2457 for my $pkg (@EXTS) {
1928 warn "unloading <$_>"; 2458 warn "... unloading $pkg";
1929 unload_extension $_; 2459
2460 if (my $cb = $pkg->can ("unload")) {
2461 eval {
2462 $cb->($pkg);
2463 1
2464 } or warn "$pkg unloaded, but with errors: $@";
1930 } 2465 }
1931 2466
2467 warn "... nuking $pkg";
2468 Symbol::delete_package $pkg;
2469 }
2470
1932 # unload all modules loaded from $LIBDIR 2471 warn "unloading all perl modules loaded from $LIBDIR";
1933 while (my ($k, $v) = each %INC) { 2472 while (my ($k, $v) = each %INC) {
1934 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2473 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1935 2474
1936 warn "removing <$k>"; 2475 warn "... unloading $k";
1937 delete $INC{$k}; 2476 delete $INC{$k};
1938 2477
1939 $k =~ s/\.pm$//; 2478 $k =~ s/\.pm$//;
1940 $k =~ s/\//::/g; 2479 $k =~ s/\//::/g;
1941 2480
1944 } 2483 }
1945 2484
1946 Symbol::delete_package $k; 2485 Symbol::delete_package $k;
1947 } 2486 }
1948 2487
1949 # sync database to disk
1950 cf::db_sync;
1951 IO::AIO::flush;
1952
1953 # get rid of safe::, as good as possible 2488 warn "getting rid of safe::, as good as possible";
1954 Symbol::delete_package "safe::$_" 2489 Symbol::delete_package "safe::$_"
1955 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2490 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1956 2491
1957 # remove register_script_function callbacks
1958 # TODO
1959
1960 # unload cf.pm "a bit" 2492 warn "unloading cf.pm \"a bit\"";
1961 delete $INC{"cf.pm"}; 2493 delete $INC{"cf.pm"};
1962 2494
1963 # don't, removes xs symbols, too, 2495 # don't, removes xs symbols, too,
1964 # and global variables created in xs 2496 # and global variables created in xs
1965 #Symbol::delete_package __PACKAGE__; 2497 #Symbol::delete_package __PACKAGE__;
1966 2498
1967 # reload cf.pm 2499 warn "unload completed, starting to reload now";
2500
1968 warn "reloading cf.pm"; 2501 warn "reloading cf.pm";
1969 require cf; 2502 require cf;
1970 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2503 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1971 2504
1972 # load config and database again 2505 warn "loading config and database again";
1973 cf::cfg_load; 2506 cf::cfg_load;
1974 cf::db_load;
1975 2507
1976 # load extensions
1977 warn "load extensions"; 2508 warn "loading extensions";
1978 cf::load_extensions; 2509 cf::load_extensions;
1979 2510
1980 # reattach attachments to objects 2511 warn "reattaching attachments to objects/players";
1981 warn "reattach"; 2512 _global_reattach; # objects, sockets
1982 _global_reattach; 2513 warn "reattaching attachments to maps";
1983 }; 2514 reattach $_ for values %MAP;
2515 warn "reattaching attachments to players";
2516 reattach $_ for values %PLAYER;
1984 2517
1985 if ($@) { 2518 warn "loading reloadable resources";
2519 reload_resources;
2520
2521 warn "leaving sync_job";
2522
2523 1
2524 } or do {
1986 warn $@; 2525 warn $@;
1987 warn "error while reloading, exiting."; 2526 warn "error while reloading, exiting.";
1988 exit 1; 2527 exit 1;
1989 } 2528 };
1990 2529
1991 warn "reloaded successfully"; 2530 warn "reloaded";
1992}; 2531};
1993 2532
1994############################################################################# 2533our $RELOAD_WATCHER; # used only during reload
1995
1996unless ($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} = $LINK_MAP;
2035}
2036
2037register "<global>", __PACKAGE__;
2038 2534
2039register_command "reload" => sub { 2535register_command "reload" => sub {
2040 my ($who, $arg) = @_; 2536 my ($who, $arg) = @_;
2041 2537
2042 if ($who->flag (FLAG_WIZ)) { 2538 if ($who->flag (FLAG_WIZ)) {
2043 $who->message ("start of reload."); 2539 $who->message ("reloading server.");
2540
2541 # doing reload synchronously and two reloads happen back-to-back,
2542 # coro crashes during coro_state_free->destroy here.
2543
2544 $RELOAD_WATCHER ||= Event->timer (
2545 reentrant => 0,
2546 after => 0,
2547 data => WF_AUTOCANCEL,
2548 cb => sub {
2044 reload; 2549 reload;
2045 $who->message ("end of reload."); 2550 undef $RELOAD_WATCHER;
2551 },
2552 );
2046 } 2553 }
2047}; 2554};
2048 2555
2049unshift @INC, $LIBDIR; 2556unshift @INC, $LIBDIR;
2557
2558my $bug_warning = 0;
2050 2559
2051$TICK_WATCHER = Event->timer ( 2560$TICK_WATCHER = Event->timer (
2052 reentrant => 0, 2561 reentrant => 0,
2562 parked => 1,
2053 prio => 0, 2563 prio => 0,
2054 at => $NEXT_TICK || $TICK, 2564 at => $NEXT_TICK || $TICK,
2055 data => WF_AUTOCANCEL, 2565 data => WF_AUTOCANCEL,
2056 cb => sub { 2566 cb => sub {
2057 unless ($FREEZE) { 2567 if ($Coro::current != $Coro::main) {
2568 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2569 unless ++$bug_warning > 10;
2570 return;
2571 }
2572
2573 $NOW = Event::time;
2574
2058 cf::server_tick; # one server iteration 2575 cf::server_tick; # one server iteration
2059 $RUNTIME += $TICK; 2576 $RUNTIME += $TICK;
2060 }
2061
2062 $NEXT_TICK += $TICK; 2577 $NEXT_TICK += $TICK;
2578
2579 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2580 $NEXT_RUNTIME_WRITE = $NOW + 10;
2581 Coro::async_pool {
2582 write_runtime
2583 or warn "ERROR: unable to write runtime file: $!";
2584 };
2585 }
2586
2587 $WAIT_FOR_TICK->broadcast;
2588 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2589
2590# my $AFTER = Event::time;
2591# warn $AFTER - $NOW;#d#
2063 2592
2064 # if we are delayed by four ticks or more, skip them all 2593 # if we are delayed by four ticks or more, skip them all
2065 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2594 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2066 2595
2067 $TICK_WATCHER->at ($NEXT_TICK); 2596 $TICK_WATCHER->at ($NEXT_TICK);
2068 $TICK_WATCHER->start; 2597 $TICK_WATCHER->start;
2069 }, 2598 },
2070); 2599);
2071 2600
2601{
2072IO::AIO::max_poll_time $TICK * 0.2; 2602 BDB::max_poll_time $TICK * 0.1;
2073 2603 $BDB_POLL_WATCHER = Event->io (
2074Event->io ( 2604 reentrant => 0,
2075 fd => IO::AIO::poll_fileno, 2605 fd => BDB::poll_fileno,
2076 poll => 'r', 2606 poll => 'r',
2077 prio => 5, 2607 prio => 0,
2078 data => WF_AUTOCANCEL,
2079 cb => \&IO::AIO::poll_cb,
2080);
2081
2082Event->timer (
2083 data => WF_AUTOCANCEL, 2608 data => WF_AUTOCANCEL,
2084 after => 0, 2609 cb => \&BDB::poll_cb,
2085 interval => 10, 2610 );
2086 cb => sub { 2611 BDB::min_parallel 8;
2087 (Coro::unblock_sub { 2612
2088 write_runtime 2613 BDB::set_sync_prepare {
2089 or warn "ERROR: unable to write runtime file: $!"; 2614 my $status;
2615 my $current = $Coro::current;
2616 (
2617 sub {
2618 $status = $!;
2619 $current->ready; undef $current;
2620 },
2621 sub {
2622 Coro::schedule while defined $current;
2623 $! = $status;
2624 },
2625 )
2626 };
2627
2628 unless ($DB_ENV) {
2629 $DB_ENV = BDB::db_env_create;
2630
2631 cf::sync_job {
2632 eval {
2633 BDB::db_env_open
2634 $DB_ENV,
2635 $BDB_ENV_DIR,
2636 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2637 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2638 0666;
2639
2640 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2641
2642 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2643 $DB_ENV->set_lk_detect;
2644 };
2645
2646 cf::cleanup "db_env_open(db): $@" if $@;
2090 })->(); 2647 };
2091 }, 2648 }
2092); 2649}
2650
2651{
2652 IO::AIO::min_parallel 8;
2653
2654 undef $Coro::AIO::WATCHER;
2655 IO::AIO::max_poll_time $TICK * 0.1;
2656 $AIO_POLL_WATCHER = Event->io (
2657 reentrant => 0,
2658 data => WF_AUTOCANCEL,
2659 fd => IO::AIO::poll_fileno,
2660 poll => 'r',
2661 prio => 6,
2662 cb => \&IO::AIO::poll_cb,
2663 );
2664}
2665
2666END { cf::emergency_save }
2093 2667
20941 26681
2095 2669

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