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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.129 by root, Wed Jan 3 00:41:19 2007 UTC vs.
Revision 1.223 by root, Sun Mar 11 02:12:44 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
48our $RELOAD; # number of reloads so far
39our @EVENT; 49our @EVENT;
40our $LIBDIR = datadir . "/ext"; 50our $LIBDIR = datadir . "/ext";
41 51
42our $TICK = MAX_TIME * 1e-6; 52our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 53our $TICK_WATCHER;
54our $AIO_POLL_WATCHER;
55our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 56our $NEXT_TICK;
45our $NOW; 57our $NOW;
58our $USE_FSYNC = 1; # use fsync to write maps - default off
59
60our $BDB_POLL_WATCHER;
61our $DB_ENV;
46 62
47our %CFG; 63our %CFG;
48 64
49our $UPTIME; $UPTIME ||= time; 65our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 66our $RUNTIME;
51 67
68our %PLAYER; # all users
52our %MAP; # all maps 69our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 70our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 71our $RANDOM_MAPS = cf::localdir . "/random";
56our %EXT_CORO; 72our $BDB_ENV_DIR = cf::localdir . "/db";
73
74our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76
77# used to convert map paths into valid unix filenames by replacing / by ∕
78our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57 79
58binmode STDOUT; 80binmode STDOUT;
59binmode STDERR; 81binmode STDERR;
60 82
61# read virtual server time, if available 83# read virtual server time, if available
68mkdir cf::localdir; 90mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 91mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 92mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 93mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 94mkdir $RANDOM_MAPS;
95mkdir $BDB_ENV_DIR;
73 96
74# a special map that is always available 97our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 98
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 99sub cf::map::normalise;
78 100
79############################################################################# 101#############################################################################
80 102
81=head2 GLOBAL VARIABLES 103=head2 GLOBAL VARIABLES
82 104
106 128
107=item %cf::CFG 129=item %cf::CFG
108 130
109Configuration for the server, loaded from C</etc/crossfire/config>, or 131Configuration for the server, loaded from C</etc/crossfire/config>, or
110from wherever your confdir points to. 132from wherever your confdir points to.
133
134=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
135
136These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
137or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
138processing has been done. Call C<< ->wait >> on them to maximise the
139window of cpu time available, or simply to synchronise to the server tick.
111 140
112=back 141=back
113 142
114=cut 143=cut
115 144
119 utf8::encode $msg; 148 utf8::encode $msg;
120 149
121 $msg .= "\n" 150 $msg .= "\n"
122 unless $msg =~ /\n$/; 151 unless $msg =~ /\n$/;
123 152
124 LOG llevError, "cfperl: $msg"; 153 LOG llevError, $msg;
125 }; 154 };
126} 155}
127 156
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 157@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 158@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 176
148$Event::DIED = sub { 177$Event::DIED = sub {
149 warn "error in event callback: @_"; 178 warn "error in event callback: @_";
150}; 179};
151 180
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 181=head2 UTILITY FUNCTIONS
157 182
158=over 4 183=over 4
159 184
185=item dumpval $ref
186
160=cut 187=cut
188
189sub dumpval {
190 eval {
191 local $SIG{__DIE__};
192 my $d;
193 if (1) {
194 $d = new Data::Dumper([$_[0]], ["*var"]);
195 $d->Terse(1);
196 $d->Indent(2);
197 $d->Quotekeys(0);
198 $d->Useqq(1);
199 #$d->Bless(...);
200 $d->Seen($_[1]) if @_ > 1;
201 $d = $d->Dump();
202 }
203 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204 $d
205 } || "[unable to dump $_[0]: '$@']";
206}
161 207
162use JSON::Syck (); # TODO# replace by JSON::PC once working 208use JSON::Syck (); # TODO# replace by JSON::PC once working
163 209
164=item $ref = cf::from_json $json 210=item $ref = cf::from_json $json
165 211
181sub to_json($) { 227sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 228 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 229 JSON::Syck::Dump $_[0]
184} 230}
185 231
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string 232=item cf::lock_wait $string
209 233
210Wait until the given lock is available. See cf::lock_acquire. 234Wait until the given lock is available. See cf::lock_acquire.
211 235
212=item my $lock = cf::lock_acquire $string 236=item my $lock = cf::lock_acquire $string
213 237
214Wait until the given lock is available and then acquires it and returns 238Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope, 239a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically 240for example when the coroutine gets canceled), the lock is automatically
217returned. 241returned.
218 242
219Lock names should begin with a unique identifier (for example, find_map 243Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 244uses map_find and cf::map::load uses map_load).
221 245
222=cut 246=cut
223 247
224our %LOCK; 248our %LOCK;
225 249
239 # wait, to be sure we are not locked 263 # wait, to be sure we are not locked
240 lock_wait $key; 264 lock_wait $key;
241 265
242 $LOCK{$key} = []; 266 $LOCK{$key} = [];
243 267
244 cf::guard { 268 Coro::guard {
245 # wake up all waiters, to be on the safe side 269 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 270 $_->ready for @{ delete $LOCK{$key} };
247 } 271 }
248} 272}
249 273
274sub freeze_mainloop {
275 return unless $TICK_WATCHER->is_active;
276
277 my $guard = Coro::guard {
278 $TICK_WATCHER->start;
279 };
280 $TICK_WATCHER->stop;
281 $guard
282}
283
250=item cf::async { BLOCK } 284=item cf::async { BLOCK }
251 285
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 286Currently the same as Coro::async_pool, meaning you cannot use
253error instead of exiting the server in case of a problem. 287C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
288thing you are allowed to do is call C<prio> on it.
254 289
255=cut 290=cut
256 291
257sub async(&) { 292BEGIN { *async = \&Coro::async_pool }
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265 293
266=item cf::sync_job { BLOCK } 294=item cf::sync_job { BLOCK }
267 295
268The design of crossfire+ requires that the main coro ($Coro::main) is 296The design of crossfire+ requires that the main coro ($Coro::main) is
269always able to handle events or runnable, as crossfire+ is only partly 297always able to handle events or runnable, as crossfire+ is only partly
283 # this is the main coro, too bad, we have to block 311 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/ 312 # till the operation succeeds, freezing the server :/
285 313
286 # TODO: use suspend/resume instead 314 # TODO: use suspend/resume instead
287 # (but this is cancel-safe) 315 # (but this is cancel-safe)
288 local $FREEZE = 1; 316 my $freeze_guard = freeze_mainloop;
289 317
290 my $busy = 1; 318 my $busy = 1;
291 my @res; 319 my @res;
292 320
293 (Coro::async { 321 (async {
294 @res = eval { $job->() }; 322 @res = eval { $job->() };
295 warn $@ if $@; 323 warn $@ if $@;
296 undef $busy; 324 undef $busy;
297 })->prio (Coro::PRIO_MAX); 325 })->prio (Coro::PRIO_MAX);
298 326
299 while ($busy) { 327 while ($busy) {
300 Coro::cede_notself; 328 Coro::cede or Event::one_event;
301 Event::one_event unless Coro::nready;
302 } 329 }
303 330
304 wantarray ? @res : $res[0] 331 wantarray ? @res : $res[0]
305 } else { 332 } else {
306 # we are in another coroutine, how wonderful, everything just works 333 # we are in another coroutine, how wonderful, everything just works
307 334
308 $job->() 335 $job->()
309 } 336 }
310} 337}
311 338
312=item $coro = cf::coro { BLOCK } 339=item $coro = cf::async_ext { BLOCK }
313 340
314Creates and returns a new coro. This coro is automcatially being canceled 341Like async, but this coro is automatically being canceled when the
315when the extension calling this is being unloaded. 342extension calling this is being unloaded.
316 343
317=cut 344=cut
318 345
319sub coro(&) { 346sub async_ext(&) {
320 my $cb = shift; 347 my $cb = shift;
321 348
322 my $coro = &cf::async ($cb); 349 my $coro = &Coro::async ($cb);
323 350
324 $coro->on_destroy (sub { 351 $coro->on_destroy (sub {
325 delete $EXT_CORO{$coro+0}; 352 delete $EXT_CORO{$coro+0};
326 }); 353 });
327 $EXT_CORO{$coro+0} = $coro; 354 $EXT_CORO{$coro+0} = $coro;
328 355
329 $coro 356 $coro
330} 357}
331 358
332sub write_runtime { 359sub write_runtime {
360 my $guard = cf::lock_acquire "write_runtime";
361
333 my $runtime = cf::localdir . "/runtime"; 362 my $runtime = cf::localdir . "/runtime";
334 363
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 364 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 365 or return;
337 366
367 my $value = $cf::RUNTIME + 90 + 10;
338 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 368 # 10 is the runtime save interval, for a monotonic clock
369 # 60 allows for the watchdog to kill the server.
370
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 371 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 372 and return;
341 373
374 # always fsync - this file is important
342 aio_fsync $fh 375 aio_fsync $fh
343 and return; 376 and return;
344 377
345 close $fh 378 close $fh
346 or return; 379 or return;
352} 385}
353 386
354=back 387=back
355 388
356=cut 389=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($class, $path, $base) = @_;
364
365 $path = $path->as_string if ref $path;
366
367 my $self = bless { }, $class;
368
369 # {... are special paths that are not touched
370 # ?xxx/... are special absolute paths
371 # ?random/... random maps
372 # /! non-realised random map exit
373 # /... normal maps
374 # ~/... per-player maps without a specific player (DO NOT USE)
375 # ~user/... per-player map of a specific user
376
377 if ($path =~ /^{/) {
378 # fine as it is
379 } elsif ($path =~ s{^\?random/}{}) {
380 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381 $self->{random} = cf::from_json $data;
382 } else {
383 if ($path =~ s{^~([^/]+)?}{}) {
384 $self->{user_rel} = 1;
385
386 if (defined $1) {
387 $self->{user} = $1;
388 } elsif ($base =~ m{^~([^/]+)/}) {
389 $self->{user} = $1;
390 } else {
391 warn "cannot resolve user-relative path without user <$path,$base>\n";
392 }
393 } elsif ($path =~ /^\//) {
394 # already absolute
395 } else {
396 $base =~ s{[^/]+/?$}{};
397 return $class->new ("$base/$path");
398 }
399
400 for ($path) {
401 redo if s{/\.?/}{/};
402 redo if s{/[^/]+/\.\./}{/};
403 }
404 }
405
406 $self->{path} = $path;
407
408 $self
409}
410
411# the name / primary key / in-game path
412sub as_string {
413 my ($self) = @_;
414
415 $self->{user_rel} ? "~$self->{user}$self->{path}"
416 : $self->{random} ? "?random/$self->{path}"
417 : $self->{path}
418}
419
420# the displayed name, this is a one way mapping
421sub visible_name {
422 my ($self) = @_;
423
424# if (my $rmp = $self->{random}) {
425# # todo: be more intelligent about this
426# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427# } else {
428 $self->as_string
429# }
430}
431
432# escape the /'s in the path
433sub _escaped_path {
434 # ∕ is U+2215
435 (my $path = $_[0]{path}) =~ s/\//∕/g;
436 $path
437}
438
439# the original (read-only) location
440sub load_path {
441 my ($self) = @_;
442
443 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444}
445
446# the temporary/swap location
447sub save_path {
448 my ($self) = @_;
449
450 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453}
454
455# the unique path, might be eq to save_path
456sub uniq_path {
457 my ($self) = @_;
458
459 $self->{user_rel} || $self->{random}
460 ? undef
461 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462}
463
464# return random map parameters, or undef
465sub random_map_params {
466 my ($self) = @_;
467
468 $self->{random}
469}
470
471# this is somewhat ugly, but style maps do need special treatment
472sub is_style_map {
473 $_[0]{path} =~ m{^/styles/}
474}
475
476package cf;
477 390
478############################################################################# 391#############################################################################
479 392
480=head2 ATTACHABLE OBJECTS 393=head2 ATTACHABLE OBJECTS
481 394
607our @CB_TYPE = (); # registry for type (cf-object class) based events 520our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 521our @CB_MAP = ();
609 522
610my %attachment; 523my %attachment;
611 524
525sub cf::attachable::thawer_merge {
526 # simply override everything except _meta
527 local $_[0]{_meta};
528 %{$_[0]} = %{$_[1]};
529}
530
612sub _attach_cb($$$$) { 531sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 532 my ($registry, $event, $prio, $cb) = @_;
614 533
615 use sort 'stable'; 534 use sort 'stable';
616 535
787# object support 706# object support
788 707
789sub reattach { 708sub reattach {
790 # basically do the same as instantiate, without calling instantiate 709 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 710 my ($obj) = @_;
711
712 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 713
793 my $registry = $obj->registry; 714 my $registry = $obj->registry;
794 715
795 @$registry = (); 716 @$registry = ();
796 717
843 $filename, length $$rdata, scalar @$objs; 764 $filename, length $$rdata, scalar @$objs;
844 765
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 766 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 767 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 768 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 769 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 770 close $fh;
850 771
851 if (@$objs) { 772 if (@$objs) {
852 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 773 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853 chmod SAVE_MODE, $fh; 774 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 775 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 776 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 777 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 778 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 779 aio_rename "$filename.pst~", "$filename.pst";
859 } 780 }
860 } else { 781 } else {
861 aio_unlink "$filename.pst"; 782 aio_unlink "$filename.pst";
928=cut 849=cut
929 850
930sub register_extcmd { 851sub register_extcmd {
931 my ($name, $cb) = @_; 852 my ($name, $cb) = @_;
932 853
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 854 $EXTCMD{$name} = $cb;
937} 855}
938 856
939cf::player->attach ( 857cf::player->attach (
940 on_command => sub { 858 on_command => sub {
941 my ($pl, $name, $params) = @_; 859 my ($pl, $name, $params) = @_;
954 872
955 my $msg = eval { from_json $buf }; 873 my $msg = eval { from_json $buf };
956 874
957 if (ref $msg) { 875 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 876 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 877 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 878 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 879 }
962 } 880 }
963 } else { 881 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 882 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 884
967 cf::override; 885 cf::override;
968 }, 886 },
969); 887);
970 888
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 889sub load_extension {
978 my ($path) = @_; 890 my ($path) = @_;
979 891
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 892 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 893 my $base = $1;
982 my $pkg = $1; 894 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 895 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 896 $pkg = "ext::$pkg";
985 897
986 warn "loading '$path' into '$pkg'\n"; 898 warn "... loading '$path' into '$pkg'\n";
987 899
988 open my $fh, "<:utf8", $path 900 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 901 or die "$path: $!";
990 902
991 my $source = 903 my $source =
992 "package $pkg; use strict; use utf8;\n" 904 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 905 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 906 . (do { local $/; <$fh> })
995 . "\n};\n1"; 907 . "\n};\n1";
996 908
997 eval $source 909 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 910 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 911 : "extension disabled.\n";
1000 912 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 913 warn $@;
1002 $ext_pkg{$base} = $pkg; 914 warn "mandatory extension failed to load, exiting.\n";
1003 915 exit 1;
1004# no strict 'refs'; 916 }
1005# @{"$pkg\::ISA"} = ext::; 917 die $@;
1006
1007 register $base, $pkg;
1008}
1009
1010sub unload_extension {
1011 my ($pkg) = @_;
1012
1013 warn "removing extension $pkg\n";
1014
1015 # remove hooks
1016 #TODO
1017# for my $idx (0 .. $#PLUGIN_EVENT) {
1018# delete $hook[$idx]{$pkg};
1019# } 918 }
1020 919
1021 # remove commands 920 push @EXTS, $pkg;
1022 for my $name (keys %COMMAND) {
1023 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025 if (@cb) {
1026 $COMMAND{$name} = \@cb;
1027 } else {
1028 delete $COMMAND{$name};
1029 }
1030 }
1031
1032 # remove extcmds
1033 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034 delete $EXTCMD{$name};
1035 }
1036
1037 if (my $cb = $pkg->can ("unload")) {
1038 eval {
1039 $cb->($pkg);
1040 1
1041 } or warn "$pkg unloaded, but with errors: $@";
1042 }
1043
1044 Symbol::delete_package $pkg;
1045} 921}
1046 922
1047sub load_extensions { 923sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 924 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 925 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 929 } or warn "$ext not loaded: $@";
1054 } 930 }
1055} 931}
1056 932
1057############################################################################# 933#############################################################################
1058# load/save/clean perl data associated with a map
1059
1060*cf::mapsupport::on_clean = sub {
1061 my ($map) = @_;
1062
1063 my $path = $map->tmpname;
1064 defined $path or return;
1065
1066 unlink "$path.pst";
1067};
1068
1069cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071#############################################################################
1072# load/save perl data associated with player->ob objects
1073
1074sub all_objects(@) {
1075 @_, map all_objects ($_->inv), @_
1076}
1077
1078# TODO: compatibility cruft, remove when no longer needed
1079cf::player->attach (
1080 on_load => sub {
1081 my ($pl, $path) = @_;
1082
1083 for my $o (all_objects $pl->ob) {
1084 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085 $o->set_ob_key_value ("_perl_data");
1086
1087 %$o = %{ Storable::thaw pack "H*", $value };
1088 }
1089 }
1090 },
1091);
1092
1093#############################################################################
1094 934
1095=head2 CORE EXTENSIONS 935=head2 CORE EXTENSIONS
1096 936
1097Functions and methods that extend core crossfire objects. 937Functions and methods that extend core crossfire objects.
1098 938
939=cut
940
941package cf::player;
942
943use Coro::AIO;
944
1099=head3 cf::player 945=head3 cf::player
1100 946
1101=over 4 947=over 4
1102 948
1103=item cf::player::exists $login 949=item cf::player::find $login
1104 950
1105Returns true when the given account exists. 951Returns the given player object, loading it if necessary (might block).
1106 952
1107=cut 953=cut
1108 954
1109sub cf::player::exists($) { 955sub playerdir($) {
1110 cf::player::find $_[0] 956 cf::localdir
1111 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 957 . "/"
958 . cf::playerdir
959 . "/"
960 . (ref $_[0] ? $_[0]->ob->name : $_[0])
961}
962
963sub path($) {
964 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965
966 (playerdir $login) . "/$login.pl"
967}
968
969sub find_active($) {
970 $cf::PLAYER{$_[0]}
971 and $cf::PLAYER{$_[0]}->active
972 and $cf::PLAYER{$_[0]}
973}
974
975sub exists($) {
976 my ($login) = @_;
977
978 $cf::PLAYER{$login}
979 or cf::sync_job { !aio_stat path $login }
980}
981
982sub find($) {
983 return $cf::PLAYER{$_[0]} || do {
984 my $login = $_[0];
985
986 my $guard = cf::lock_acquire "user_find:$login";
987
988 $cf::PLAYER{$_[0]} || do {
989 my $pl = load_pl path $login
990 or return;
991 $cf::PLAYER{$login} = $pl
992 }
993 }
994}
995
996sub save($) {
997 my ($pl) = @_;
998
999 return if $pl->{deny_save};
1000
1001 my $path = path $pl;
1002 my $guard = cf::lock_acquire "user_save:$path";
1003
1004 return if $pl->{deny_save};
1005
1006 aio_mkdir playerdir $pl, 0770;
1007 $pl->{last_save} = $cf::RUNTIME;
1008
1009 $pl->save_pl ($path);
1010 Coro::cede;
1011}
1012
1013sub new($) {
1014 my ($login) = @_;
1015
1016 my $self = create;
1017
1018 $self->ob->name ($login);
1019 $self->{deny_save} = 1;
1020
1021 $cf::PLAYER{$login} = $self;
1022
1023 $self
1024}
1025
1026=item $pl->quit_character
1027
1028Nukes the player without looking back. If logged in, the connection will
1029be destroyed. May block for a long time.
1030
1031=cut
1032
1033sub quit_character {
1034 my ($pl) = @_;
1035
1036 my $name = $pl->ob->name;
1037
1038 $pl->{deny_save} = 1;
1039 $pl->password ("*"); # this should lock out the player until we nuked the dir
1040
1041 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1042 $pl->deactivate;
1043 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1044 $pl->ns->destroy if $pl->ns;
1045
1046 my $path = playerdir $pl;
1047 my $temp = "$path~$cf::RUNTIME~deleting~";
1048 aio_rename $path, $temp;
1049 delete $cf::PLAYER{$pl->ob->name};
1050 $pl->destroy;
1051
1052 my $prefix = qr<^~\Q$name\E/>;
1053
1054 # nuke player maps
1055 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1056
1057 IO::AIO::aio_rmtree $temp;
1058}
1059
1060=item $pl->kick
1061
1062Kicks a player out of the game. This destroys the connection.
1063
1064=cut
1065
1066sub kick {
1067 my ($pl, $kicker) = @_;
1068
1069 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1070 $pl->killer ("kicked");
1071 $pl->ns->destroy;
1072}
1073
1074=item cf::player::list_logins
1075
1076Returns am arrayref of all valid playernames in the system, can take a
1077while and may block, so not sync_job-capable, ever.
1078
1079=cut
1080
1081sub list_logins {
1082 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1083 or return [];
1084
1085 my @logins;
1086
1087 for my $login (@$dirs) {
1088 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1089 aio_read $fh, 0, 512, my $buf, 0 or next;
1090 $buf !~ /^password -------------$/m or next; # official not-valid tag
1091
1092 utf8::decode $login;
1093 push @logins, $login;
1094 }
1095
1096 \@logins
1097}
1098
1099=item $player->maps
1100
1101Returns an arrayref of map paths that are private for this
1102player. May block.
1103
1104=cut
1105
1106sub maps($) {
1107 my ($pl) = @_;
1108
1109 $pl = ref $pl ? $pl->ob->name : $pl;
1110
1111 my $files = aio_readdir playerdir $pl
1112 or return;
1113
1114 my @paths;
1115
1116 for (@$files) {
1117 utf8::decode $_;
1118 next if /\.(?:pl|pst)$/;
1119 next unless /^$PATH_SEP/o;
1120
1121 push @paths, cf::map::normalise "~$pl/$_";
1122 }
1123
1124 \@paths
1112} 1125}
1113 1126
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1127=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1128
1116Sends an ext reply to the player. 1129Sends an ext reply to the player.
1117 1130
1118=cut 1131=cut
1119 1132
1120sub cf::player::ext_reply($$$%) { 1133sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1134 my ($self, $id, %msg) = @_;
1122 1135
1123 $msg{msgid} = $id; 1136 $msg{msgid} = $id;
1124 1137
1125 $self->send ("ext " . to_json \%msg); 1138 $self->send ("ext " . cf::to_json \%msg);
1126} 1139}
1140
1141package cf;
1127 1142
1128=back 1143=back
1129 1144
1130 1145
1131=head3 cf::map 1146=head3 cf::map
1137package cf::map; 1152package cf::map;
1138 1153
1139use Fcntl; 1154use Fcntl;
1140use Coro::AIO; 1155use Coro::AIO;
1141 1156
1157use overload
1158 '""' => \&as_string,
1159 fallback => 1;
1160
1142our $MAX_RESET = 7200; 1161our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1162our $DEFAULT_RESET = 3000;
1144 1163
1145sub generate_random_map { 1164sub generate_random_map {
1146 my ($path, $rmp) = @_; 1165 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1166 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1167 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1168 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1169 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1170 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1171 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1172 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1173 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1174 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1175 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1176 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1177 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (cf::region::find $rmp->{region}) 1178 (cf::region::find $rmp->{region}), $rmp->{custom}
1179 )
1180}
1181
1182=item cf::map->register ($regex, $prio)
1183
1184Register a handler for the map path matching the given regex at the
1185givne priority (higher is better, built-in handlers have priority 0, the
1186default).
1187
1188=cut
1189
1190sub register {
1191 my (undef, $regex, $prio) = @_;
1192 my $pkg = caller;
1193
1194 no strict;
1195 push @{"$pkg\::ISA"}, __PACKAGE__;
1196
1197 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1198}
1199
1200# also paths starting with '/'
1201$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1202
1203sub thawer_merge {
1204 my ($self, $merge) = @_;
1205
1206 # we have to keep some variables in memory intact
1207 local $self->{path};
1208 local $self->{load_path};
1209 local $self->{deny_save};
1210 local $self->{deny_reset};
1211
1212 $self->SUPER::thawer_merge ($merge);
1213}
1214
1215sub normalise {
1216 my ($path, $base) = @_;
1217
1218 $path = "$path"; # make sure its a string
1219
1220 $path =~ s/\.map$//;
1221
1222 # map plan:
1223 #
1224 # /! non-realised random map exit (special hack!)
1225 # {... are special paths that are not being touched
1226 # ?xxx/... are special absolute paths
1227 # ?random/... random maps
1228 # /... normal maps
1229 # ~user/... per-player map of a specific user
1230
1231 $path =~ s/$PATH_SEP/\//go;
1232
1233 # treat it as relative path if it starts with
1234 # something that looks reasonable
1235 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1236 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1237
1238 $base =~ s{[^/]+/?$}{};
1239 $path = "$base/$path";
1240 }
1241
1242 for ($path) {
1243 redo if s{//}{/};
1244 redo if s{/\.?/}{/};
1245 redo if s{/[^/]+/\.\./}{/};
1246 }
1247
1248 $path
1249}
1250
1251sub new_from_path {
1252 my (undef, $path, $base) = @_;
1253
1254 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1255
1256 $path = normalise $path, $base;
1257
1258 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1259 if ($path =~ $EXT_MAP{$pkg}[1]) {
1260 my $self = bless cf::map::new, $pkg;
1261 $self->{path} = $path; $self->path ($path);
1262 $self->init; # pass $1 etc.
1263 return $self;
1264 }
1265 }
1266
1267 Carp::carp "unable to resolve path '$path' (base '$base').";
1268 ()
1269}
1270
1271sub init {
1272 my ($self) = @_;
1273
1274 $self
1275}
1276
1277sub as_string {
1278 my ($self) = @_;
1279
1280 "$self->{path}"
1281}
1282
1283# the displayed name, this is a one way mapping
1284sub visible_name {
1285 &as_string
1286}
1287
1288# the original (read-only) location
1289sub load_path {
1290 my ($self) = @_;
1291
1292 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1293}
1294
1295# the temporary/swap location
1296sub save_path {
1297 my ($self) = @_;
1298
1299 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1301}
1302
1303# the unique path, undef == no special unique path
1304sub uniq_path {
1305 my ($self) = @_;
1306
1307 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1162} 1309}
1163 1310
1164# and all this just because we cannot iterate over 1311# and all this just because we cannot iterate over
1165# all maps in C++... 1312# all maps in C++...
1166sub change_all_map_light { 1313sub change_all_map_light {
1168 1315
1169 $_->change_map_light ($change) 1316 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1317 for grep $_->outdoor, values %cf::MAP;
1171} 1318}
1172 1319
1320sub unlink_save {
1321 my ($self) = @_;
1322
1323 utf8::encode (my $save = $self->save_path);
1324 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1325 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1326}
1327
1173sub try_load_header($) { 1328sub load_header_from($) {
1174 my ($path) = @_; 1329 my ($self, $path) = @_;
1175 1330
1176 utf8::encode $path; 1331 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1332 #aio_open $path, O_RDONLY, 0
1333 # or return;
1334
1335 $self->_load_header ($path)
1178 or return; 1336 or return;
1179 1337
1180 my $map = cf::map::new 1338 $self->{load_path} = $path;
1339
1340 1
1341}
1342
1343sub load_header_orig {
1344 my ($self) = @_;
1345
1346 $self->load_header_from ($self->load_path)
1347}
1348
1349sub load_header_temp {
1350 my ($self) = @_;
1351
1352 $self->load_header_from ($self->save_path)
1353}
1354
1355sub prepare_temp {
1356 my ($self) = @_;
1357
1358 $self->last_access ((delete $self->{last_access})
1359 || $cf::RUNTIME); #d#
1360 # safety
1361 $self->{instantiate_time} = $cf::RUNTIME
1362 if $self->{instantiate_time} > $cf::RUNTIME;
1363}
1364
1365sub prepare_orig {
1366 my ($self) = @_;
1367
1368 $self->{load_original} = 1;
1369 $self->{instantiate_time} = $cf::RUNTIME;
1370 $self->last_access ($cf::RUNTIME);
1371 $self->instantiate;
1372}
1373
1374sub load_header {
1375 my ($self) = @_;
1376
1377 if ($self->load_header_temp) {
1378 $self->prepare_temp;
1379 } else {
1380 $self->load_header_orig
1181 or return; 1381 or return;
1382 $self->prepare_orig;
1383 }
1182 1384
1183 $map->load_header ($path) 1385 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1386}
1190 1387
1191sub find_map; 1388sub find;
1192sub find_map { 1389sub find {
1193 my ($path, $origin) = @_; 1390 my ($path, $origin) = @_;
1194 1391
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1392 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1393
1200 cf::lock_wait "map_find:$key"; 1394 cf::lock_wait "map_find:$path";
1201 1395
1202 $cf::MAP{$key} || do { 1396 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1397 my $guard = cf::lock_acquire "map_find:$path";
1204 1398 my $map = new_from_path cf::map $path
1205 # do it the slow way
1206 my $map = try_load_header $path->save_path;
1207
1208 if ($map) {
1209 # safety
1210 $map->{instantiate_time} = $cf::RUNTIME
1211 if $map->{instantiate_time} > $cf::RUNTIME;
1212 } else {
1213 if (my $rmp = $path->random_map_params) {
1214 $map = generate_random_map $key, $rmp;
1215 } else {
1216 $map = try_load_header $path->load_path;
1217 }
1218
1219 $map or return; 1399 or return;
1220 1400
1221 $map->{load_original} = 1;
1222 $map->{instantiate_time} = $cf::RUNTIME;
1223 $map->instantiate;
1224
1225 # per-player maps become, after loading, normal maps
1226 $map->per_player (0) if $path->{user_rel};
1227 }
1228
1229 $map->path ($key);
1230 $map->{path} = $path;
1231 $map->{last_save} = $cf::RUNTIME; 1401 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1402
1234 if ($map->should_reset) { 1403 $map->load_header
1404 or return;
1405
1406 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1407 # doing this can freeze the server in a sync job, obviously
1408 #$cf::WAIT_FOR_TICK->wait;
1235 $map->reset; 1409 $map->reset;
1236 undef $guard; 1410 undef $guard;
1237 $map = find_map $path 1411 return find $path;
1238 or return;
1239 } 1412 }
1240 1413
1241 $cf::MAP{$key} = $map 1414 $cf::MAP{$path} = $map
1242 } 1415 }
1243} 1416}
1417
1418sub pre_load { }
1419sub post_load { }
1244 1420
1245sub load { 1421sub load {
1246 my ($self) = @_; 1422 my ($self) = @_;
1247 1423
1424 local $self->{deny_reset} = 1; # loading can take a long time
1425
1248 my $path = $self->{path}; 1426 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1427 my $guard = cf::lock_acquire "map_load:$path";
1250 1428
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1429 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1430
1253 $self->in_memory (cf::MAP_LOADING); 1431 $self->in_memory (cf::MAP_LOADING);
1254 1432
1255 $self->alloc; 1433 $self->alloc;
1434
1435 $self->pre_load;
1436
1256 $self->load_objects ($self->{load_path}, 1) 1437 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1438 or return;
1258 1439
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1440 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1441 if delete $self->{load_original};
1261 1442
1262 if (my $uniq = $path->uniq_path) { 1443 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1444 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1445 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1446 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1447 $self->_load_objects ($uniq, 0);
1267 } 1448 }
1268 } 1449 }
1450
1451 Coro::cede;
1269 1452
1270 # now do the right thing for maps 1453 # now do the right thing for maps
1271 $self->link_multipart_objects; 1454 $self->link_multipart_objects;
1272 1455
1273 if ($self->{path}->is_style_map) { 1456 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1457 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1458 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1459 $self->update_buttons;
1460 Coro::cede;
1280 $self->set_darkness_map; 1461 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1462 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1463 unless $self->difficulty;
1464 Coro::cede;
1283 $self->activate; 1465 $self->activate;
1284 } 1466 }
1285 1467
1468 $self->post_load;
1469
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1470 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1471}
1288 1472
1289sub load_map_sync { 1473sub customise_for {
1474 my ($self, $ob) = @_;
1475
1476 return find "~" . $ob->name . "/" . $self->{path}
1477 if $self->per_player;
1478
1479 $self
1480}
1481
1482# find and load all maps in the 3x3 area around a map
1483sub load_diag {
1484 my ($map) = @_;
1485
1486 my @diag; # diagonal neighbours
1487
1488 for (0 .. 3) {
1489 my $neigh = $map->tile_path ($_)
1490 or next;
1491 $neigh = find $neigh, $map
1492 or next;
1493 $neigh->load;
1494
1495 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1496 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1497 }
1498
1499 for (@diag) {
1500 my $neigh = find @$_
1501 or next;
1502 $neigh->load;
1503 }
1504}
1505
1506sub find_sync {
1290 my ($path, $origin) = @_; 1507 my ($path, $origin) = @_;
1291 1508
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1509 cf::sync_job { find $path, $origin }
1510}
1293 1511
1294 cf::sync_job { 1512sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1513 my ($map) = @_;
1296 or return; 1514
1515 cf::sync_job { $map->load };
1516}
1517
1518our %MAP_PREFETCH;
1519our $MAP_PREFETCHER = undef;
1520
1521sub find_async {
1522 my ($path, $origin) = @_;
1523
1524 $path = normalise $path, $origin && $origin->{path};
1525
1526 if (my $map = $cf::MAP{$path}) {
1527 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1528 }
1529
1530 undef $MAP_PREFETCH{$path};
1531 $MAP_PREFETCHER ||= cf::async {
1532 while (%MAP_PREFETCH) {
1533 for my $path (keys %MAP_PREFETCH) {
1534 my $map = find $path
1535 or next;
1297 $map->load; 1536 $map->load;
1298 $map 1537
1538 delete $MAP_PREFETCH{$path};
1539 }
1540 }
1541 undef $MAP_PREFETCHER;
1299 } 1542 };
1543 $MAP_PREFETCHER->prio (6);
1544
1545 ()
1300} 1546}
1301 1547
1302sub save { 1548sub save {
1303 my ($self) = @_; 1549 my ($self) = @_;
1304 1550
1551 my $lock = cf::lock_acquire "map_data:" . $self->path;
1552
1305 $self->{last_save} = $cf::RUNTIME; 1553 $self->{last_save} = $cf::RUNTIME;
1306 1554
1307 return unless $self->dirty; 1555 return unless $self->dirty;
1308 1556
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1557 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1558 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1559
1312 $self->{load_path} = $save; 1560 $self->{load_path} = $save;
1313 1561
1314 return if $self->{deny_save}; 1562 return if $self->{deny_save};
1315 1563
1564 local $self->{last_access} = $self->last_access;#d#
1565
1566 cf::async {
1567 $_->contr->save for $self->players;
1568 };
1569
1316 if ($uniq) { 1570 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1571 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1572 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1573 } else {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1574 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321 } 1575 }
1322} 1576}
1323 1577
1324sub swap_out { 1578sub swap_out {
1325 my ($self) = @_; 1579 my ($self) = @_;
1580
1581 # save first because save cedes
1582 $self->save;
1583
1584 my $lock = cf::lock_acquire "map_data:" . $self->path;
1326 1585
1327 return if $self->players; 1586 return if $self->players;
1328 return if $self->in_memory != cf::MAP_IN_MEMORY; 1587 return if $self->in_memory != cf::MAP_IN_MEMORY;
1329 return if $self->{deny_save}; 1588 return if $self->{deny_save};
1330 1589
1331 $self->save;
1332 $self->clear; 1590 $self->clear;
1333 $self->in_memory (cf::MAP_SWAPPED); 1591 $self->in_memory (cf::MAP_SWAPPED);
1334} 1592}
1335 1593
1336sub reset_at { 1594sub reset_at {
1337 my ($self) = @_; 1595 my ($self) = @_;
1338 1596
1339 # TODO: safety, remove and allow resettable per-player maps 1597 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1598 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1599 return 1e99 if $self->{deny_reset};
1342 1600
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1601 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1602 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345 1603
1350 my ($self) = @_; 1608 my ($self) = @_;
1351 1609
1352 $self->reset_at <= $cf::RUNTIME 1610 $self->reset_at <= $cf::RUNTIME
1353} 1611}
1354 1612
1355sub unlink_save {
1356 my ($self) = @_;
1357
1358 utf8::encode (my $save = $self->{path}->save_path);
1359 aioreq_pri 3; IO::AIO::aio_unlink $save;
1360 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361}
1362
1363sub rename {
1364 my ($self, $new_path) = @_;
1365
1366 $self->unlink_save;
1367
1368 delete $cf::MAP{$self->path};
1369 $self->{path} = new cf::path $new_path;
1370 $self->path ($self->{path}->as_string);
1371 $cf::MAP{$self->path} = $self;
1372
1373 $self->save;
1374}
1375
1376sub reset { 1613sub reset {
1377 my ($self) = @_; 1614 my ($self) = @_;
1378 1615
1616 my $lock = cf::lock_acquire "map_data:$self->{path}";
1617
1379 return if $self->players; 1618 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1619 return if $self->isa ("ext::map_per_player");#d#
1381 1620
1382 warn "resetting map ", $self->path;#d# 1621 warn "resetting map ", $self->path;#d#
1383 1622
1623 $self->in_memory (cf::MAP_SWAPPED);
1624
1625 # need to save uniques path
1626 unless ($self->{deny_save}) {
1627 my $uniq = $self->uniq_path; utf8::encode $uniq;
1628
1629 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1630 if $uniq;
1631 }
1632
1384 delete $cf::MAP{$self->path}; 1633 delete $cf::MAP{$self->path};
1634
1635 $self->clear;
1385 1636
1386 $_->clear_links_to ($self) for values %cf::MAP; 1637 $_->clear_links_to ($self) for values %cf::MAP;
1387 1638
1388 $self->unlink_save; 1639 $self->unlink_save;
1389 $self->destroy; 1640 $self->destroy;
1392my $nuke_counter = "aaaa"; 1643my $nuke_counter = "aaaa";
1393 1644
1394sub nuke { 1645sub nuke {
1395 my ($self) = @_; 1646 my ($self) = @_;
1396 1647
1648 delete $cf::MAP{$self->path};
1649
1650 $self->unlink_save;
1651
1652 bless $self, "cf::map";
1653 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1654 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1655 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1656 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1657
1658 $cf::MAP{$self->path} = $self;
1659
1400 $self->reset; # polite request, might not happen 1660 $self->reset; # polite request, might not happen
1401} 1661}
1402 1662
1403sub customise_for { 1663=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1664
1406 if ($map->per_player) { 1665Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1666instantiated unique items. May block.
1408 }
1409 1667
1410 $map 1668=cut
1411}
1412 1669
1413sub emergency_save { 1670sub unique_maps() {
1414 local $cf::FREEZE = 1; 1671 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1672 or return;
1415 1673
1416 warn "enter emergency map save\n"; 1674 my @paths;
1417 1675
1418 cf::sync_job { 1676 for (@$files) {
1419 warn "begin emergency map save\n"; 1677 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1678 next if /\.pst$/;
1679 next unless /^$PATH_SEP/o;
1680
1681 push @paths, cf::map::normalise $_;
1421 }; 1682 }
1422 1683
1423 warn "end emergency map save\n"; 1684 \@paths
1424} 1685}
1425 1686
1426package cf; 1687package cf;
1427 1688
1428=back 1689=back
1429 1690
1691=head3 cf::object
1692
1693=cut
1694
1695package cf::object;
1696
1697=over 4
1698
1699=item $ob->inv_recursive
1700
1701Returns the inventory of the object _and_ their inventories, recursively.
1702
1703=cut
1704
1705sub inv_recursive_;
1706sub inv_recursive_ {
1707 map { $_, inv_recursive_ $_->inv } @_
1708}
1709
1710sub inv_recursive {
1711 inv_recursive_ inv $_[0]
1712}
1713
1714package cf;
1715
1716=back
1430 1717
1431=head3 cf::object::player 1718=head3 cf::object::player
1432 1719
1433=over 4 1720=over 4
1434 1721
1474 1761
1475=item $player_object->enter_link 1762=item $player_object->enter_link
1476 1763
1477Freezes the player and moves him/her to a special map (C<{link}>). 1764Freezes the player and moves him/her to a special map (C<{link}>).
1478 1765
1479The player should be reaosnably safe there for short amounts of time. You 1766The player should be reasonably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though. 1767I<MUST> call C<leave_link> as soon as possible, though.
1481 1768
1769Will never block.
1770
1482=item $player_object->leave_link ($map, $x, $y) 1771=item $player_object->leave_link ($map, $x, $y)
1483 1772
1484Moves the player out of the specila link map onto the given map. If the 1773Moves the player out of the special C<{link}> map onto the specified
1485map is not valid (or omitted), the player will be moved back to the 1774map. If the map is not valid (or omitted), the player will be moved back
1486location he/she was before the call to C<enter_link>, or, if that fails, 1775to the location he/she was before the call to C<enter_link>, or, if that
1487to the emergency map position. 1776fails, to the emergency map position.
1488 1777
1489Might block. 1778Might block.
1490 1779
1491=cut 1780=cut
1781
1782sub link_map {
1783 unless ($LINK_MAP) {
1784 $LINK_MAP = cf::map::find "{link}"
1785 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1786 $LINK_MAP->load;
1787 }
1788
1789 $LINK_MAP
1790}
1492 1791
1493sub cf::object::player::enter_link { 1792sub cf::object::player::enter_link {
1494 my ($self) = @_; 1793 my ($self) = @_;
1495 1794
1496 $self->deactivate_recursive; 1795 $self->deactivate_recursive;
1497 1796
1498 return if $self->map == $LINK_MAP; 1797 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1798
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1799 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1800 if $self->map;
1502 1801
1503 $self->enter_map ($LINK_MAP, 20, 20); 1802 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1803}
1505 1804
1506sub cf::object::player::leave_link { 1805sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1806 my ($self, $map, $x, $y) = @_;
1508 1807
1509 my $link_pos = delete $self->{_link_pos}; 1808 my $link_pos = delete $self->{_link_pos};
1510 1809
1511 unless ($map) { 1810 unless ($map) {
1512 # restore original map position 1811 # restore original map position
1513 ($map, $x, $y) = @{ $link_pos || [] }; 1812 ($map, $x, $y) = @{ $link_pos || [] };
1514 $map = cf::map::find_map $map; 1813 $map = cf::map::find $map;
1515 1814
1516 unless ($map) { 1815 unless ($map) {
1517 ($map, $x, $y) = @$EMERGENCY_POSITION; 1816 ($map, $x, $y) = @$EMERGENCY_POSITION;
1518 $map = cf::map::find_map $map 1817 $map = cf::map::find $map
1519 or die "FATAL: cannot load emergency map\n"; 1818 or die "FATAL: cannot load emergency map\n";
1520 } 1819 }
1521 } 1820 }
1522 1821
1523 ($x, $y) = (-1, -1) 1822 ($x, $y) = (-1, -1)
1526 # use -1 or undef as default coordinates, not 0, 0 1825 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1826 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1827 if $x <=0 && $y <= 0;
1529 1828
1530 $map->load; 1829 $map->load;
1830 $map->load_diag;
1531 1831
1832 return unless $self->contr->active;
1532 $self->activate_recursive; 1833 $self->activate_recursive;
1834
1835 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533 $self->enter_map ($map, $x, $y); 1836 $self->enter_map ($map, $x, $y);
1534} 1837}
1535 1838
1536cf::player->attach ( 1839cf::player->attach (
1537 on_logout => sub { 1840 on_logout => sub {
1549 1852
1550 # try to abort aborted map switching on player login :) 1853 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1854 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1855 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1856 $pl->ob->enter_link;
1554 cf::async { 1857 (async {
1858 $pl->ob->reply (undef,
1859 "There was an internal problem at your last logout, "
1860 . "the server will try to bring you to your intended destination in a second.",
1861 cf::NDI_RED);
1555 # we need this sleep as the login has a concurrent enter_exit running 1862 # we need this sleep as the login has a concurrent enter_exit running
1556 # and this sleep increases chances of the player not ending up in scorn 1863 # and this sleep increases chances of the player not ending up in scorn
1557 Coro::Timer::sleep 1; 1864 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1865 $pl->ob->leave_link;
1559 }; 1866 })->prio (2);
1560 } 1867 }
1561 }, 1868 },
1562); 1869);
1563 1870
1564=item $player_object->goto_map ($path, $x, $y) 1871=item $player_object->goto ($path, $x, $y)
1565 1872
1566=cut 1873=cut
1567 1874
1568sub cf::object::player::goto_map { 1875sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1876 my ($self, $path, $x, $y) = @_;
1570 1877
1571 $self->enter_link; 1878 $self->enter_link;
1572 1879
1573 (cf::async { 1880 (async {
1574 $path = new cf::path $path; 1881 my $map = eval {
1575
1576 my $map = cf::map::find_map $path->as_string; 1882 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1883 $map = $map->customise_for ($self) if $map;
1578 1884 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1885 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1886 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1887
1584 $self->leave_link ($map, $x, $y); 1888 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1889 })->prio (1);
1586} 1890}
1587 1891
1591 1895
1592sub parse_random_map_params { 1896sub parse_random_map_params {
1593 my ($spec) = @_; 1897 my ($spec) = @_;
1594 1898
1595 my $rmp = { # defaults 1899 my $rmp = { # defaults
1596 xsize => 10, 1900 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1901 ysize => (cf::rndm 15, 40),
1902 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1903 #layout => string,
1598 }; 1904 };
1599 1905
1600 for (split /\n/, $spec) { 1906 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1907 my ($k, $v) = split /\s+/, $_, 2;
1602 1908
1606 $rmp 1912 $rmp
1607} 1913}
1608 1914
1609sub prepare_random_map { 1915sub prepare_random_map {
1610 my ($exit) = @_; 1916 my ($exit) = @_;
1917
1918 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1919
1612 # all this does is basically replace the /! path by 1920 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1921 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1922 # that depends on the exit object
1615 1923
1616 my $rmp = parse_random_map_params $exit->msg; 1924 my $rmp = parse_random_map_params $exit->msg;
1617 1925
1618 if ($exit->map) { 1926 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1927 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1928 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1929 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1930 $rmp->{origin_y} = $exit->y;
1623 } 1931 }
1624 1932
1625 $rmp->{random_seed} ||= $exit->random_seed; 1933 $rmp->{random_seed} ||= $exit->random_seed;
1626 1934
1627 my $data = cf::to_json $rmp; 1935 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1936 my $md5 = Digest::MD5::md5_hex $data;
1937 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1938
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1939 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1940 aio_write $fh, 0, (length $data), $data, 0;
1941 undef $fh;
1942 aio_rename "$meta~", $meta;
1632 1943
1633 $exit->slaying ("?random/$md5"); 1944 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1945 $exit->msg (undef);
1635 } 1946 }
1636} 1947}
1638sub cf::object::player::enter_exit { 1949sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1950 my ($self, $exit) = @_;
1640 1951
1641 return unless $self->type == cf::PLAYER; 1952 return unless $self->type == cf::PLAYER;
1642 1953
1954 if ($exit->slaying eq "/!") {
1955 #TODO: this should de-fi-ni-te-ly not be a sync-job
1956 cf::sync_job { prepare_random_map $exit };
1957 }
1958
1959 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960 my $hp = $exit->stats->hp;
1961 my $sp = $exit->stats->sp;
1962
1643 $self->enter_link; 1963 $self->enter_link;
1644 1964
1645 (cf::async { 1965 (async {
1966 $self->deactivate_recursive; # just to be sure
1646 unless (eval { 1967 unless (eval {
1647 prepare_random_map $exit 1968 $self->goto ($slaying, $hp, $sp);
1648 if $exit->slaying eq "/!";
1649
1650 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652 1969
1653 1; 1970 1;
1654 }) { 1971 }) {
1655 $self->message ("Something went wrong deep within the crossfire server. " 1972 $self->message ("Something went wrong deep within the crossfire server. "
1656 . "I'll try to bring you back to the map you were before. " 1973 . "I'll try to bring you back to the map you were before. "
1657 . "Please report this to the dungeon master", 1974 . "Please report this to the dungeon master!",
1658 cf::NDI_UNIQUE | cf::NDI_RED); 1975 cf::NDI_UNIQUE | cf::NDI_RED);
1659 1976
1660 warn "ERROR in enter_exit: $@"; 1977 warn "ERROR in enter_exit: $@";
1661 $self->leave_link; 1978 $self->leave_link;
1662 } 1979 }
1717 # get handled first 2034 # get handled first
1718 my $queue = delete $ns->{query_queue} 2035 my $queue = delete $ns->{query_queue}
1719 or return; # be conservative, not sure how that can happen, but we saw a crash here 2036 or return; # be conservative, not sure how that can happen, but we saw a crash here
1720 2037
1721 (shift @$queue)->[1]->($msg); 2038 (shift @$queue)->[1]->($msg);
2039 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722 2040
1723 push @{ $ns->{query_queue} }, @$queue; 2041 push @{ $ns->{query_queue} }, @$queue;
1724 2042
1725 if (@{ $ns->{query_queue} } == @$queue) { 2043 if (@{ $ns->{query_queue} } == @$queue) {
1726 if (@$queue) { 2044 if (@$queue) {
1730 } 2048 }
1731 } 2049 }
1732 }, 2050 },
1733); 2051);
1734 2052
1735=item $client->coro (\&cb) 2053=item $client->async (\&cb)
1736 2054
1737Create a new coroutine, running the specified callback. The coroutine will 2055Create a new coroutine, running the specified callback. The coroutine will
1738be automatically cancelled when the client gets destroyed (e.g. on logout, 2056be automatically cancelled when the client gets destroyed (e.g. on logout,
1739or loss of connection). 2057or loss of connection).
1740 2058
1741=cut 2059=cut
1742 2060
1743sub cf::client::coro { 2061sub cf::client::async {
1744 my ($self, $cb) = @_; 2062 my ($self, $cb) = @_;
1745 2063
1746 my $coro = &cf::async ($cb); 2064 my $coro = &Coro::async ($cb);
1747 2065
1748 $coro->on_destroy (sub { 2066 $coro->on_destroy (sub {
1749 delete $self->{_coro}{$coro+0}; 2067 delete $self->{_coro}{$coro+0};
1750 }); 2068 });
1751 2069
1887The parameter C<$family> should best start with the name of the extension 2205The parameter C<$family> should best start with the name of the extension
1888using it, it should be unique. 2206using it, it should be unique.
1889 2207
1890=over 4 2208=over 4
1891 2209
1892=item $hashref = cf::db_get $family
1893
1894Return a hashref for use by the extension C<$family>, which can be
1895modified. After modifications, you have to call C<cf::db_dirty> or
1896C<cf::db_sync>.
1897
1898=item $value = cf::db_get $family => $key 2210=item $value = cf::db_get $family => $key
1899 2211
1900Returns a single value from the database 2212Returns a single value from the database.
1901
1902=item cf::db_put $family => $hashref
1903
1904Stores the given family hashref into the database. Updates are delayed, if
1905you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906 2213
1907=item cf::db_put $family => $key => $value 2214=item cf::db_put $family => $key => $value
1908 2215
1909Stores the given C<$value> in the family hash. Updates are delayed, if you 2216Stores the given C<$value> in the family.
1910want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912=item cf::db_dirty
1913
1914Marks the database as dirty, to be updated at a later time.
1915
1916=item cf::db_sync
1917
1918Immediately write the database to disk I<if it is dirty>.
1919 2217
1920=cut 2218=cut
1921 2219
1922our $DB; 2220our $DB;
1923 2221
1924{ 2222sub db_init {
2223 unless ($DB) {
2224 $DB = BDB::db_create $DB_ENV;
2225
2226 cf::sync_job {
2227 eval {
2228 $DB->set_flags (BDB::CHKSUM);
2229
2230 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2231 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232 cf::cleanup "db_open(db): $!" if $!;
2233 };
2234 cf::cleanup "db_open(db): $@" if $@;
2235 };
2236
1925 my $path = cf::localdir . "/database.pst"; 2237 my $path = cf::localdir . "/database.pst";
2238 if (stat $path) {
2239 cf::sync_job {
2240 my $pst = Storable::retrieve $path;
1926 2241
1927 sub db_load() { 2242 cf::db_put (board => data => $pst->{board});
1928 $DB = stat $path ? Storable::retrieve $path : { }; 2243 cf::db_put (guildrules => data => $pst->{guildrules});
1929 } 2244 cf::db_put (rent => balance => $pst->{rent}{balance});
2245 BDB::db_env_txn_checkpoint $DB_ENV;
1930 2246
1931 my $pid; 2247 unlink $path;
1932
1933 sub db_save() {
1934 waitpid $pid, 0 if $pid;
1935 if (0 == ($pid = fork)) {
1936 $DB->{_meta}{version} = 1;
1937 Storable::nstore $DB, "$path~";
1938 rename "$path~", $path;
1939 cf::_exit 0 if defined $pid;
1940 } 2248 };
1941 }
1942
1943 my $dirty;
1944
1945 sub db_sync() {
1946 db_save if $dirty;
1947 undef $dirty;
1948 }
1949
1950 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951 db_sync;
1952 });
1953
1954 sub db_dirty() {
1955 $dirty = 1;
1956 $idle->start;
1957 }
1958
1959 sub db_get($;$) {
1960 @_ >= 2
1961 ? $DB->{$_[0]}{$_[1]}
1962 : ($DB->{$_[0]} ||= { })
1963 }
1964
1965 sub db_put($$;$) {
1966 if (@_ >= 3) {
1967 $DB->{$_[0]}{$_[1]} = $_[2];
1968 } else {
1969 $DB->{$_[0]} = $_[1];
1970 }
1971 db_dirty;
1972 }
1973
1974 cf::global->attach (
1975 prio => 10000,
1976 on_cleanup => sub {
1977 db_sync;
1978 }, 2249 }
1979 ); 2250 }
2251}
2252
2253sub db_get($$) {
2254 my $key = "$_[0]/$_[1]";
2255
2256 cf::sync_job {
2257 BDB::db_get $DB, undef, $key, my $data;
2258
2259 $! ? ()
2260 : Compress::LZF::sthaw $data
2261 }
2262}
2263
2264sub db_put($$$) {
2265 BDB::dbreq_pri 4;
2266 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1980} 2267}
1981 2268
1982############################################################################# 2269#############################################################################
1983# the server's main() 2270# the server's init and main functions
2271
2272sub load_faces {
2273 my $path = sprintf "%s/faces", cf::datadir;
2274
2275 warn "loading faces from $path\n";
2276
2277 my $faces;
2278 0 < aio_load $path, $faces
2279 or die "$path: $!";
2280
2281 Coro::cede;
2282 $faces = Storable::thaw $faces;
2283 Coro::cede;
2284
2285 while (my ($face, $info) = each %$faces) {
2286 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2289 Coro::cede;
2290 }
2291
2292 1
2293}
2294
2295sub reload_resources {
2296 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2297 or die "unable to load regions file\n";#d#
2298 load_faces
2299 or die "unable to load faces\n";#d#
2300}
2301
2302sub init {
2303 reload_resources;
2304}
1984 2305
1985sub cfg_load { 2306sub cfg_load {
1986 open my $fh, "<:utf8", cf::confdir . "/config" 2307 open my $fh, "<:utf8", cf::confdir . "/config"
1987 or return; 2308 or return;
1988 2309
1989 local $/; 2310 local $/;
1990 *CFG = YAML::Syck::Load <$fh>; 2311 *CFG = YAML::Syck::Load <$fh>;
2312
2313 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2314
2315 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2316 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2317
2318 if (exists $CFG{mlockall}) {
2319 eval {
2320 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2321 and die "WARNING: m(un)lockall failed: $!\n";
2322 };
2323 warn $@ if $@;
2324 }
1991} 2325}
1992 2326
1993sub main { 2327sub main {
1994 # we must not ever block the main coroutine 2328 # we must not ever block the main coroutine
1995 local $Coro::idle = sub { 2329 local $Coro::idle = sub {
1996 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2330 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997 (Coro::unblock_sub { 2331 (async {
1998 Event::one_event; 2332 Event::one_event;
1999 })->(); 2333 })->prio (Coro::PRIO_MAX);
2000 }; 2334 };
2001 2335
2002 cfg_load; 2336 cfg_load;
2003 db_load; 2337 db_init;
2004 load_extensions; 2338 load_extensions;
2339
2340 $TICK_WATCHER->start;
2005 Event::loop; 2341 Event::loop;
2006} 2342}
2007 2343
2008############################################################################# 2344#############################################################################
2009# initialisation 2345# initialisation and cleanup
2346
2347# install some emergency cleanup handlers
2348BEGIN {
2349 for my $signal (qw(INT HUP TERM)) {
2350 Event->signal (
2351 reentrant => 0,
2352 data => WF_AUTOCANCEL,
2353 signal => $signal,
2354 prio => 0,
2355 cb => sub {
2356 cf::cleanup "SIG$signal";
2357 },
2358 );
2359 }
2360}
2361
2362sub emergency_save() {
2363 my $freeze_guard = cf::freeze_mainloop;
2364
2365 warn "enter emergency perl save\n";
2366
2367 cf::sync_job {
2368 # use a peculiar iteration method to avoid tripping on perl
2369 # refcount bugs in for. also avoids problems with players
2370 # and maps saved/destroyed asynchronously.
2371 warn "begin emergency player save\n";
2372 for my $login (keys %cf::PLAYER) {
2373 my $pl = $cf::PLAYER{$login} or next;
2374 $pl->valid or next;
2375 $pl->save;
2376 }
2377 warn "end emergency player save\n";
2378
2379 warn "begin emergency map save\n";
2380 for my $path (keys %cf::MAP) {
2381 my $map = $cf::MAP{$path} or next;
2382 $map->valid or next;
2383 $map->save;
2384 }
2385 warn "end emergency map save\n";
2386
2387 warn "begin emergency database checkpoint\n";
2388 BDB::db_env_txn_checkpoint $DB_ENV;
2389 warn "end emergency database checkpoint\n";
2390 };
2391
2392 warn "leave emergency perl save\n";
2393}
2394
2395sub post_cleanup {
2396 my ($make_core) = @_;
2397
2398 warn Carp::longmess "post_cleanup backtrace"
2399 if $make_core;
2400}
2010 2401
2011sub reload() { 2402sub reload() {
2012 # can/must only be called in main 2403 # can/must only be called in main
2013 if ($Coro::current != $Coro::main) { 2404 if ($Coro::current != $Coro::main) {
2014 warn "can only reload from main coroutine\n"; 2405 warn "can only reload from main coroutine";
2015 return; 2406 return;
2016 } 2407 }
2017 2408
2018 warn "reloading..."; 2409 warn "reloading...";
2019 2410
2020 local $FREEZE = 1; 2411 warn "entering sync_job";
2412
2413 cf::sync_job {
2414 cf::write_runtime; # external watchdog should not bark
2021 cf::emergency_save; 2415 cf::emergency_save;
2416 cf::write_runtime; # external watchdog should not bark
2022 2417
2023 eval { 2418 warn "syncing database to disk";
2419 BDB::db_env_txn_checkpoint $DB_ENV;
2420
2024 # if anything goes wrong in here, we should simply crash as we already saved 2421 # if anything goes wrong in here, we should simply crash as we already saved
2025 2422
2026 # cancel all watchers 2423 warn "cancelling all WF_AUTOCANCEL watchers";
2027 for (Event::all_watchers) { 2424 for (Event::all_watchers) {
2028 $_->cancel if $_->data & WF_AUTOCANCEL; 2425 $_->cancel if $_->data & WF_AUTOCANCEL;
2029 } 2426 }
2030 2427
2428 warn "flushing outstanding aio requests";
2429 for (;;) {
2430 BDB::flush;
2431 IO::AIO::flush;
2432 Coro::cede;
2433 last unless IO::AIO::nreqs || BDB::nreqs;
2434 warn "iterate...";
2435 }
2436
2437 ++$RELOAD;
2438
2031 # cancel all extension coros 2439 warn "cancelling all extension coros";
2032 $_->cancel for values %EXT_CORO; 2440 $_->cancel for values %EXT_CORO;
2033 %EXT_CORO = (); 2441 %EXT_CORO = ();
2034 2442
2035 # unload all extensions 2443 warn "removing commands";
2036 for (@exts) { 2444 %COMMAND = ();
2445
2446 warn "removing ext commands";
2447 %EXTCMD = ();
2448
2449 warn "unloading/nuking all extensions";
2450 for my $pkg (@EXTS) {
2037 warn "unloading <$_>"; 2451 warn "... unloading $pkg";
2038 unload_extension $_; 2452
2453 if (my $cb = $pkg->can ("unload")) {
2454 eval {
2455 $cb->($pkg);
2456 1
2457 } or warn "$pkg unloaded, but with errors: $@";
2039 } 2458 }
2040 2459
2460 warn "... nuking $pkg";
2461 Symbol::delete_package $pkg;
2462 }
2463
2041 # unload all modules loaded from $LIBDIR 2464 warn "unloading all perl modules loaded from $LIBDIR";
2042 while (my ($k, $v) = each %INC) { 2465 while (my ($k, $v) = each %INC) {
2043 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2466 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044 2467
2045 warn "removing <$k>"; 2468 warn "... unloading $k";
2046 delete $INC{$k}; 2469 delete $INC{$k};
2047 2470
2048 $k =~ s/\.pm$//; 2471 $k =~ s/\.pm$//;
2049 $k =~ s/\//::/g; 2472 $k =~ s/\//::/g;
2050 2473
2053 } 2476 }
2054 2477
2055 Symbol::delete_package $k; 2478 Symbol::delete_package $k;
2056 } 2479 }
2057 2480
2058 # sync database to disk
2059 cf::db_sync;
2060 IO::AIO::flush;
2061
2062 # get rid of safe::, as good as possible 2481 warn "getting rid of safe::, as good as possible";
2063 Symbol::delete_package "safe::$_" 2482 Symbol::delete_package "safe::$_"
2064 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2483 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065 2484
2066 # remove register_script_function callbacks
2067 # TODO
2068
2069 # unload cf.pm "a bit" 2485 warn "unloading cf.pm \"a bit\"";
2070 delete $INC{"cf.pm"}; 2486 delete $INC{"cf.pm"};
2071 2487
2072 # don't, removes xs symbols, too, 2488 # don't, removes xs symbols, too,
2073 # and global variables created in xs 2489 # and global variables created in xs
2074 #Symbol::delete_package __PACKAGE__; 2490 #Symbol::delete_package __PACKAGE__;
2075 2491
2076 # reload cf.pm 2492 warn "unload completed, starting to reload now";
2493
2077 warn "reloading cf.pm"; 2494 warn "reloading cf.pm";
2078 require cf; 2495 require cf;
2079 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2496 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080 2497
2081 # load config and database again 2498 warn "loading config and database again";
2082 cf::cfg_load; 2499 cf::cfg_load;
2083 cf::db_load;
2084 2500
2085 # load extensions
2086 warn "load extensions"; 2501 warn "loading extensions";
2087 cf::load_extensions; 2502 cf::load_extensions;
2088 2503
2089 # reattach attachments to objects 2504 warn "reattaching attachments to objects/players";
2090 warn "reattach"; 2505 _global_reattach; # objects, sockets
2091 _global_reattach; 2506 warn "reattaching attachments to maps";
2092 }; 2507 reattach $_ for values %MAP;
2508 warn "reattaching attachments to players";
2509 reattach $_ for values %PLAYER;
2093 2510
2094 if ($@) { 2511 warn "loading reloadable resources";
2512 reload_resources;
2513
2514 warn "leaving sync_job";
2515
2516 1
2517 } or do {
2095 warn $@; 2518 warn $@;
2096 warn "error while reloading, exiting."; 2519 warn "error while reloading, exiting.";
2097 exit 1; 2520 exit 1;
2098 } 2521 };
2099 2522
2100 warn "reloaded successfully"; 2523 warn "reloaded";
2101}; 2524};
2102 2525
2103############################################################################# 2526our $RELOAD_WATCHER; # used only during reload
2104
2105unless ($LINK_MAP) {
2106 $LINK_MAP = cf::map::new;
2107
2108 $LINK_MAP->width (41);
2109 $LINK_MAP->height (41);
2110 $LINK_MAP->alloc;
2111 $LINK_MAP->path ("{link}");
2112 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115 # dirty hack because... archetypes are not yet loaded
2116 Event->timer (
2117 after => 2,
2118 cb => sub {
2119 $_[0]->w->cancel;
2120
2121 # provide some exits "home"
2122 my $exit = cf::object::new "exit";
2123
2124 $exit->slaying ($EMERGENCY_POSITION->[0]);
2125 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128 $LINK_MAP->insert ($exit->clone, 19, 19);
2129 $LINK_MAP->insert ($exit->clone, 19, 20);
2130 $LINK_MAP->insert ($exit->clone, 19, 21);
2131 $LINK_MAP->insert ($exit->clone, 20, 19);
2132 $LINK_MAP->insert ($exit->clone, 20, 21);
2133 $LINK_MAP->insert ($exit->clone, 21, 19);
2134 $LINK_MAP->insert ($exit->clone, 21, 20);
2135 $LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137 $exit->destroy;
2138 });
2139
2140 $LINK_MAP->{deny_save} = 1;
2141 $LINK_MAP->{deny_reset} = 1;
2142
2143 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144}
2145
2146register "<global>", __PACKAGE__;
2147 2527
2148register_command "reload" => sub { 2528register_command "reload" => sub {
2149 my ($who, $arg) = @_; 2529 my ($who, $arg) = @_;
2150 2530
2151 if ($who->flag (FLAG_WIZ)) { 2531 if ($who->flag (FLAG_WIZ)) {
2152 $who->message ("start of reload."); 2532 $who->message ("reloading server.");
2533
2534 # doing reload synchronously and two reloads happen back-to-back,
2535 # coro crashes during coro_state_free->destroy here.
2536
2537 $RELOAD_WATCHER ||= Event->timer (
2538 reentrant => 0,
2539 after => 0,
2540 data => WF_AUTOCANCEL,
2541 cb => sub {
2153 reload; 2542 reload;
2154 $who->message ("end of reload."); 2543 undef $RELOAD_WATCHER;
2544 },
2545 );
2155 } 2546 }
2156}; 2547};
2157 2548
2158unshift @INC, $LIBDIR; 2549unshift @INC, $LIBDIR;
2550
2551my $bug_warning = 0;
2159 2552
2160$TICK_WATCHER = Event->timer ( 2553$TICK_WATCHER = Event->timer (
2161 reentrant => 0, 2554 reentrant => 0,
2555 parked => 1,
2162 prio => 0, 2556 prio => 0,
2163 at => $NEXT_TICK || $TICK, 2557 at => $NEXT_TICK || $TICK,
2164 data => WF_AUTOCANCEL, 2558 data => WF_AUTOCANCEL,
2165 cb => sub { 2559 cb => sub {
2166 unless ($FREEZE) { 2560 if ($Coro::current != $Coro::main) {
2561 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2562 unless ++$bug_warning > 10;
2563 return;
2564 }
2565
2566 $NOW = Event::time;
2567
2167 cf::server_tick; # one server iteration 2568 cf::server_tick; # one server iteration
2168 $RUNTIME += $TICK; 2569 $RUNTIME += $TICK;
2169 }
2170
2171 $NEXT_TICK += $TICK; 2570 $NEXT_TICK += $TICK;
2571
2572 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573 $NEXT_RUNTIME_WRITE = $NOW + 10;
2574 Coro::async_pool {
2575 write_runtime
2576 or warn "ERROR: unable to write runtime file: $!";
2577 };
2578 }
2579
2580 $WAIT_FOR_TICK->broadcast;
2581 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583# my $AFTER = Event::time;
2584# warn $AFTER - $NOW;#d#
2172 2585
2173 # if we are delayed by four ticks or more, skip them all 2586 # if we are delayed by four ticks or more, skip them all
2174 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2587 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175 2588
2176 $TICK_WATCHER->at ($NEXT_TICK); 2589 $TICK_WATCHER->at ($NEXT_TICK);
2177 $TICK_WATCHER->start; 2590 $TICK_WATCHER->start;
2178 }, 2591 },
2179); 2592);
2180 2593
2594{
2181IO::AIO::max_poll_time $TICK * 0.2; 2595 BDB::max_poll_time $TICK * 0.1;
2182 2596 $BDB_POLL_WATCHER = Event->io (
2183Event->io ( 2597 reentrant => 0,
2184 fd => IO::AIO::poll_fileno, 2598 fd => BDB::poll_fileno,
2185 poll => 'r', 2599 poll => 'r',
2186 prio => 5, 2600 prio => 0,
2187 data => WF_AUTOCANCEL,
2188 cb => \&IO::AIO::poll_cb,
2189);
2190
2191Event->timer (
2192 data => WF_AUTOCANCEL, 2601 data => WF_AUTOCANCEL,
2193 after => 0, 2602 cb => \&BDB::poll_cb,
2194 interval => 10, 2603 );
2195 cb => sub { 2604 BDB::min_parallel 8;
2196 (Coro::unblock_sub { 2605
2197 write_runtime 2606 BDB::set_sync_prepare {
2198 or warn "ERROR: unable to write runtime file: $!"; 2607 my $status;
2608 my $current = $Coro::current;
2609 (
2610 sub {
2611 $status = $!;
2612 $current->ready; undef $current;
2613 },
2614 sub {
2615 Coro::schedule while defined $current;
2616 $! = $status;
2617 },
2618 )
2619 };
2620
2621 unless ($DB_ENV) {
2622 $DB_ENV = BDB::db_env_create;
2623
2624 cf::sync_job {
2625 eval {
2626 BDB::db_env_open
2627 $DB_ENV,
2628 $BDB_ENV_DIR,
2629 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631 0666;
2632
2633 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2634
2635 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636 $DB_ENV->set_lk_detect;
2637 };
2638
2639 cf::cleanup "db_env_open(db): $@" if $@;
2199 })->(); 2640 };
2200 }, 2641 }
2201); 2642}
2643
2644{
2645 IO::AIO::min_parallel 8;
2646
2647 undef $Coro::AIO::WATCHER;
2648 IO::AIO::max_poll_time $TICK * 0.1;
2649 $AIO_POLL_WATCHER = Event->io (
2650 reentrant => 0,
2651 data => WF_AUTOCANCEL,
2652 fd => IO::AIO::poll_fileno,
2653 poll => 'r',
2654 prio => 6,
2655 cb => \&IO::AIO::poll_cb,
2656 );
2657}
2202 2658
2203END { cf::emergency_save } 2659END { cf::emergency_save }
2204 2660
22051 26611
2206 2662

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