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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.226 by root, Wed Mar 14 04:12:29 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 (); 26use IO::AIO 2.32 ();
23use YAML::Syck (); 27use YAML::Syck ();
24use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
25 30
31Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
32Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 33$Event::Eval = 1; # no idea why this is required, but it is
34
35sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27 36
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 37# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 38$YAML::Syck::ImplicitUnicode = 1;
30 39
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 40$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 41
35our %COMMAND = (); 42our %COMMAND = ();
36our %COMMAND_TIME = (); 43our %COMMAND_TIME = ();
44
45our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 46our %EXTCMD = ();
47our %EXT_CORO = (); # coroutines bound to extensions
48our %EXT_MAP = (); # pluggable maps
38 49
50our $RELOAD; # number of reloads so far
39our @EVENT; 51our @EVENT;
40our $LIBDIR = datadir . "/ext"; 52our $LIBDIR = datadir . "/ext";
41 53
42our $TICK = MAX_TIME * 1e-6; 54our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 55our $TICK_WATCHER;
56our $AIO_POLL_WATCHER;
57our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 58our $NEXT_TICK;
45our $NOW; 59our $NOW;
60our $USE_FSYNC = 1; # use fsync to write maps - default off
61
62our $BDB_POLL_WATCHER;
63our $DB_ENV;
46 64
47our %CFG; 65our %CFG;
48 66
49our $UPTIME; $UPTIME ||= time; 67our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 68our $RUNTIME;
51 69
70our %PLAYER; # all users
52our %MAP; # all maps 71our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 72our $LINK_MAP; # the special {link} map, which is always available
54our $RANDOM_MAPS = cf::localdir . "/random"; 73our $RANDOM_MAPS = cf::localdir . "/random";
55our %EXT_CORO; 74our $BDB_ENV_DIR = cf::localdir . "/db";
75
76our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
77our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
78
79# used to convert map paths into valid unix filenames by replacing / by ∕
80our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56 81
57binmode STDOUT; 82binmode STDOUT;
58binmode STDERR; 83binmode STDERR;
59 84
60# read virtual server time, if available 85# read virtual server time, if available
67mkdir cf::localdir; 92mkdir cf::localdir;
68mkdir cf::localdir . "/" . cf::playerdir; 93mkdir cf::localdir . "/" . cf::playerdir;
69mkdir cf::localdir . "/" . cf::tmpdir; 94mkdir cf::localdir . "/" . cf::tmpdir;
70mkdir cf::localdir . "/" . cf::uniquedir; 95mkdir cf::localdir . "/" . cf::uniquedir;
71mkdir $RANDOM_MAPS; 96mkdir $RANDOM_MAPS;
97mkdir $BDB_ENV_DIR;
72 98
73# a special map that is always available
74our $LINK_MAP;
75our $EMERGENCY_POSITION; 99our $EMERGENCY_POSITION;
100
101sub cf::map::normalise;
76 102
77############################################################################# 103#############################################################################
78 104
79=head2 GLOBAL VARIABLES 105=head2 GLOBAL VARIABLES
80 106
104 130
105=item %cf::CFG 131=item %cf::CFG
106 132
107Configuration for the server, loaded from C</etc/crossfire/config>, or 133Configuration for the server, loaded from C</etc/crossfire/config>, or
108from wherever your confdir points to. 134from wherever your confdir points to.
135
136=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
137
138These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
139or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
140processing has been done. Call C<< ->wait >> on them to maximise the
141window of cpu time available, or simply to synchronise to the server tick.
109 142
110=back 143=back
111 144
112=cut 145=cut
113 146
117 utf8::encode $msg; 150 utf8::encode $msg;
118 151
119 $msg .= "\n" 152 $msg .= "\n"
120 unless $msg =~ /\n$/; 153 unless $msg =~ /\n$/;
121 154
122 LOG llevError, "cfperl: $msg"; 155 LOG llevError, $msg;
123 }; 156 };
124} 157}
125 158
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 159@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 160@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 178
146$Event::DIED = sub { 179$Event::DIED = sub {
147 warn "error in event callback: @_"; 180 warn "error in event callback: @_";
148}; 181};
149 182
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 183=head2 UTILITY FUNCTIONS
155 184
156=over 4 185=over 4
157 186
187=item dumpval $ref
188
158=cut 189=cut
190
191sub dumpval {
192 eval {
193 local $SIG{__DIE__};
194 my $d;
195 if (1) {
196 $d = new Data::Dumper([$_[0]], ["*var"]);
197 $d->Terse(1);
198 $d->Indent(2);
199 $d->Quotekeys(0);
200 $d->Useqq(1);
201 #$d->Bless(...);
202 $d->Seen($_[1]) if @_ > 1;
203 $d = $d->Dump();
204 }
205 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
206 $d
207 } || "[unable to dump $_[0]: '$@']";
208}
159 209
160use JSON::Syck (); # TODO# replace by JSON::PC once working 210use JSON::Syck (); # TODO# replace by JSON::PC once working
161 211
162=item $ref = cf::from_json $json 212=item $ref = cf::from_json $json
163 213
179sub to_json($) { 229sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 230 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0] 231 JSON::Syck::Dump $_[0]
182} 232}
183 233
184=item my $guard = cf::guard { BLOCK }
185
186Run the given callback when the guard object gets destroyed (useful for
187coroutine cancellations).
188
189You can call C<< ->cancel >> on the guard object to stop the block from
190being executed.
191
192=cut
193
194sub guard(&) {
195 bless \(my $cb = $_[0]), cf::guard::;
196}
197
198sub cf::guard::cancel {
199 ${$_[0]} = sub { };
200}
201
202sub cf::guard::DESTROY {
203 ${$_[0]}->();
204}
205
206=item cf::lock_wait $string 234=item cf::lock_wait $string
207 235
208Wait until the given lock is available. See cf::lock_acquire. 236Wait until the given lock is available. See cf::lock_acquire.
209 237
210=item my $lock = cf::lock_acquire $string 238=item my $lock = cf::lock_acquire $string
211 239
212Wait until the given lock is available and then acquires it and returns 240Wait until the given lock is available and then acquires it and returns
213a guard object. If the guard object gets destroyed (goes out of scope, 241a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214for example when the coroutine gets canceled), the lock is automatically 242for example when the coroutine gets canceled), the lock is automatically
215returned. 243returned.
216 244
217Lock names should begin with a unique identifier (for example, cf::map::find 245Lock names should begin with a unique identifier (for example, cf::map::find
218uses map_find and cf::map::load uses map_load). 246uses map_find and cf::map::load uses map_load).
237 # wait, to be sure we are not locked 265 # wait, to be sure we are not locked
238 lock_wait $key; 266 lock_wait $key;
239 267
240 $LOCK{$key} = []; 268 $LOCK{$key} = [];
241 269
242 cf::guard { 270 Coro::guard {
243 # wake up all waiters, to be on the safe side 271 # wake up all waiters, to be on the safe side
244 $_->ready for @{ delete $LOCK{$key} }; 272 $_->ready for @{ delete $LOCK{$key} };
245 } 273 }
246} 274}
247 275
248=item cf::async { BLOCK }
249
250Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251error instead of exiting the server in case of a problem.
252
253=cut
254
255sub async(&) {
256 my ($cb) = @_;
257
258 Coro::async {
259 eval { $cb->() };
260 warn $@ if $@;
261 }
262}
263
264sub freeze_mainloop { 276sub freeze_mainloop {
265 return unless $TICK_WATCHER->is_active; 277 return unless $TICK_WATCHER->is_active;
266 278
267 my $guard = guard { $TICK_WATCHER->start }; 279 my $guard = Coro::guard {
280 $TICK_WATCHER->start;
281 };
268 $TICK_WATCHER->stop; 282 $TICK_WATCHER->stop;
269 $guard 283 $guard
270} 284}
285
286=item cf::async { BLOCK }
287
288Currently the same as Coro::async_pool, meaning you cannot use
289C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
290thing you are allowed to do is call C<prio> on it.
291
292=cut
293
294BEGIN { *async = \&Coro::async_pool }
271 295
272=item cf::sync_job { BLOCK } 296=item cf::sync_job { BLOCK }
273 297
274The design of crossfire+ requires that the main coro ($Coro::main) is 298The design of crossfire+ requires that the main coro ($Coro::main) is
275always able to handle events or runnable, as crossfire+ is only partly 299always able to handle events or runnable, as crossfire+ is only partly
294 my $freeze_guard = freeze_mainloop; 318 my $freeze_guard = freeze_mainloop;
295 319
296 my $busy = 1; 320 my $busy = 1;
297 my @res; 321 my @res;
298 322
299 (Coro::async { 323 (async {
300 @res = eval { $job->() }; 324 @res = eval { $job->() };
301 warn $@ if $@; 325 warn $@ if $@;
302 undef $busy; 326 undef $busy;
303 })->prio (Coro::PRIO_MAX); 327 })->prio (Coro::PRIO_MAX);
304 328
305 while ($busy) { 329 while ($busy) {
306 Coro::cede_notself; 330 Coro::cede or Event::one_event;
307 Event::one_event unless Coro::nready;
308 } 331 }
309 332
310 wantarray ? @res : $res[0] 333 wantarray ? @res : $res[0]
311 } else { 334 } else {
312 # we are in another coroutine, how wonderful, everything just works 335 # we are in another coroutine, how wonderful, everything just works
313 336
314 $job->() 337 $job->()
315 } 338 }
316} 339}
317 340
318=item $coro = cf::coro { BLOCK } 341=item $coro = cf::async_ext { BLOCK }
319 342
320Creates and returns a new coro. This coro is automcatially being canceled 343Like async, but this coro is automatically being canceled when the
321when the extension calling this is being unloaded. 344extension calling this is being unloaded.
322 345
323=cut 346=cut
324 347
325sub coro(&) { 348sub async_ext(&) {
326 my $cb = shift; 349 my $cb = shift;
327 350
328 my $coro = &cf::async ($cb); 351 my $coro = &Coro::async ($cb);
329 352
330 $coro->on_destroy (sub { 353 $coro->on_destroy (sub {
331 delete $EXT_CORO{$coro+0}; 354 delete $EXT_CORO{$coro+0};
332 }); 355 });
333 $EXT_CORO{$coro+0} = $coro; 356 $EXT_CORO{$coro+0} = $coro;
334 357
335 $coro 358 $coro
336} 359}
337 360
338sub write_runtime { 361sub write_runtime {
362 my $guard = cf::lock_acquire "write_runtime";
363
339 my $runtime = cf::localdir . "/runtime"; 364 my $runtime = cf::localdir . "/runtime";
340 365
341 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 366 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342 or return; 367 or return;
343 368
369 my $value = $cf::RUNTIME + 90 + 10;
344 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 370 # 10 is the runtime save interval, for a monotonic clock
371 # 60 allows for the watchdog to kill the server.
372
345 (aio_write $fh, 0, (length $value), $value, 0) <= 0 373 (aio_write $fh, 0, (length $value), $value, 0) <= 0
346 and return; 374 and return;
347 375
376 # always fsync - this file is important
348 aio_fsync $fh 377 aio_fsync $fh
349 and return; 378 and return;
350 379
351 close $fh 380 close $fh
352 or return; 381 or return;
358} 387}
359 388
360=back 389=back
361 390
362=cut 391=cut
363
364#############################################################################
365
366package cf::path;
367
368sub new {
369 my ($class, $path, $base) = @_;
370
371 $path = $path->as_string if ref $path;
372
373 my $self = bless { }, $class;
374
375 # {... are special paths that are not touched
376 # ?xxx/... are special absolute paths
377 # ?random/... random maps
378 # /! non-realised random map exit
379 # /... normal maps
380 # ~/... per-player maps without a specific player (DO NOT USE)
381 # ~user/... per-player map of a specific user
382
383 if ($path =~ /^{/) {
384 # fine as it is
385 } elsif ($path =~ s{^\?random/}{}) {
386 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387 $self->{random} = cf::from_json $data;
388 } else {
389 if ($path =~ s{^~([^/]+)?}{}) {
390 $self->{user_rel} = 1;
391
392 if (defined $1) {
393 $self->{user} = $1;
394 } elsif ($base =~ m{^~([^/]+)/}) {
395 $self->{user} = $1;
396 } else {
397 warn "cannot resolve user-relative path without user <$path,$base>\n";
398 }
399 } elsif ($path =~ /^\//) {
400 # already absolute
401 } else {
402 $base =~ s{[^/]+/?$}{};
403 return $class->new ("$base/$path");
404 }
405
406 for ($path) {
407 redo if s{/\.?/}{/};
408 redo if s{/[^/]+/\.\./}{/};
409 }
410 }
411
412 $self->{path} = $path;
413
414 $self
415}
416
417# the name / primary key / in-game path
418sub as_string {
419 my ($self) = @_;
420
421 $self->{user_rel} ? "~$self->{user}$self->{path}"
422 : $self->{random} ? "?random/$self->{path}"
423 : $self->{path}
424}
425
426# the displayed name, this is a one way mapping
427sub visible_name {
428 my ($self) = @_;
429
430# if (my $rmp = $self->{random}) {
431# # todo: be more intelligent about this
432# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433# } else {
434 $self->as_string
435# }
436}
437
438# escape the /'s in the path
439sub _escaped_path {
440 # ∕ is U+2215
441 (my $path = $_[0]{path}) =~ s/\//∕/g;
442 $path
443}
444
445# the original (read-only) location
446sub load_path {
447 my ($self) = @_;
448
449 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450}
451
452# the temporary/swap location
453sub save_path {
454 my ($self) = @_;
455
456 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459}
460
461# the unique path, might be eq to save_path
462sub uniq_path {
463 my ($self) = @_;
464
465 $self->{user_rel} || $self->{random}
466 ? undef
467 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468}
469
470# return random map parameters, or undef
471sub random_map_params {
472 my ($self) = @_;
473
474 $self->{random}
475}
476
477# this is somewhat ugly, but style maps do need special treatment
478sub is_style_map {
479 $_[0]{path} =~ m{^/styles/}
480}
481
482package cf;
483 392
484############################################################################# 393#############################################################################
485 394
486=head2 ATTACHABLE OBJECTS 395=head2 ATTACHABLE OBJECTS
487 396
613our @CB_TYPE = (); # registry for type (cf-object class) based events 522our @CB_TYPE = (); # registry for type (cf-object class) based events
614our @CB_MAP = (); 523our @CB_MAP = ();
615 524
616my %attachment; 525my %attachment;
617 526
527sub cf::attachable::thawer_merge {
528 # simply override everything except _meta
529 local $_[0]{_meta};
530 %{$_[0]} = %{$_[1]};
531}
532
618sub _attach_cb($$$$) { 533sub _attach_cb($$$$) {
619 my ($registry, $event, $prio, $cb) = @_; 534 my ($registry, $event, $prio, $cb) = @_;
620 535
621 use sort 'stable'; 536 use sort 'stable';
622 537
793# object support 708# object support
794 709
795sub reattach { 710sub reattach {
796 # basically do the same as instantiate, without calling instantiate 711 # basically do the same as instantiate, without calling instantiate
797 my ($obj) = @_; 712 my ($obj) = @_;
713
714 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798 715
799 my $registry = $obj->registry; 716 my $registry = $obj->registry;
800 717
801 @$registry = (); 718 @$registry = ();
802 719
849 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
850 767
851 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
853 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
855 close $fh; 772 close $fh;
856 773
857 if (@$objs) { 774 if (@$objs) {
858 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
860 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
861 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
862 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
863 close $fh; 780 close $fh;
864 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
865 } 782 }
866 } else { 783 } else {
867 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
934=cut 851=cut
935 852
936sub register_extcmd { 853sub register_extcmd {
937 my ($name, $cb) = @_; 854 my ($name, $cb) = @_;
938 855
939 my $caller = caller;
940 #warn "registering extcmd '$name' to '$caller'";
941
942 $EXTCMD{$name} = [$cb, $caller]; 856 $EXTCMD{$name} = $cb;
943} 857}
944 858
945cf::player->attach ( 859cf::player->attach (
946 on_command => sub { 860 on_command => sub {
947 my ($pl, $name, $params) = @_; 861 my ($pl, $name, $params) = @_;
960 874
961 my $msg = eval { from_json $buf }; 875 my $msg = eval { from_json $buf };
962 876
963 if (ref $msg) { 877 if (ref $msg) {
964 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 878 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965 if (my %reply = $cb->[0]->($pl, $msg)) { 879 if (my %reply = $cb->($pl, $msg)) {
966 $pl->ext_reply ($msg->{msgid}, %reply); 880 $pl->ext_reply ($msg->{msgid}, %reply);
967 } 881 }
968 } 882 }
969 } else { 883 } else {
970 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 884 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
972 886
973 cf::override; 887 cf::override;
974 }, 888 },
975); 889);
976 890
977sub register {
978 my ($base, $pkg) = @_;
979
980 #TODO
981}
982
983sub load_extension { 891sub load_extension {
984 my ($path) = @_; 892 my ($path) = @_;
985 893
986 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 894 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
987 my $base = $1; 895 my $base = $1;
988 my $pkg = $1; 896 my $pkg = $1;
989 $pkg =~ s/[^[:word:]]/_/g; 897 $pkg =~ s/[^[:word:]]/_/g;
990 $pkg = "ext::$pkg"; 898 $pkg = "ext::$pkg";
991 899
992 warn "loading '$path' into '$pkg'\n"; 900 warn "... loading '$path' into '$pkg'\n";
993 901
994 open my $fh, "<:utf8", $path 902 open my $fh, "<:utf8", $path
995 or die "$path: $!"; 903 or die "$path: $!";
996 904
997 my $source = 905 my $source =
998 "package $pkg; use strict; use utf8;\n" 906 "package $pkg; use strict; use utf8;\n"
999 . "#line 1 \"$path\"\n{\n" 907 . "#line 1 \"$path\"\n{\n"
1000 . (do { local $/; <$fh> }) 908 . (do { local $/; <$fh> })
1001 . "\n};\n1"; 909 . "\n};\n1";
1002 910
1003 eval $source 911 unless (eval $source) {
1004 or die $@ ? "$path: $@\n" 912 my $msg = $@ ? "$path: $@\n"
1005 : "extension disabled.\n"; 913 : "extension disabled.\n";
1006 914 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007 push @exts, $pkg; 915 warn $@;
1008 $ext_pkg{$base} = $pkg; 916 warn "mandatory extension failed to load, exiting.\n";
1009 917 exit 1;
1010# no strict 'refs'; 918 }
1011# @{"$pkg\::ISA"} = ext::; 919 die $@;
1012
1013 register $base, $pkg;
1014}
1015
1016sub unload_extension {
1017 my ($pkg) = @_;
1018
1019 warn "removing extension $pkg\n";
1020
1021 # remove hooks
1022 #TODO
1023# for my $idx (0 .. $#PLUGIN_EVENT) {
1024# delete $hook[$idx]{$pkg};
1025# } 920 }
1026 921
1027 # remove commands 922 push @EXTS, $pkg;
1028 for my $name (keys %COMMAND) {
1029 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031 if (@cb) {
1032 $COMMAND{$name} = \@cb;
1033 } else {
1034 delete $COMMAND{$name};
1035 }
1036 }
1037
1038 # remove extcmds
1039 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040 delete $EXTCMD{$name};
1041 }
1042
1043 if (my $cb = $pkg->can ("unload")) {
1044 eval {
1045 $cb->($pkg);
1046 1
1047 } or warn "$pkg unloaded, but with errors: $@";
1048 }
1049
1050 Symbol::delete_package $pkg;
1051} 923}
1052 924
1053sub load_extensions { 925sub load_extensions {
1054 for my $ext (<$LIBDIR/*.ext>) { 926 for my $ext (<$LIBDIR/*.ext>) {
1055 next unless -r $ext; 927 next unless -r $ext;
1059 } or warn "$ext not loaded: $@"; 931 } or warn "$ext not loaded: $@";
1060 } 932 }
1061} 933}
1062 934
1063############################################################################# 935#############################################################################
1064# load/save/clean perl data associated with a map
1065
1066*cf::mapsupport::on_clean = sub {
1067 my ($map) = @_;
1068
1069 my $path = $map->tmpname;
1070 defined $path or return;
1071
1072 unlink "$path.pst";
1073};
1074
1075cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077#############################################################################
1078# load/save perl data associated with player->ob objects
1079
1080sub all_objects(@) {
1081 @_, map all_objects ($_->inv), @_
1082}
1083
1084# TODO: compatibility cruft, remove when no longer needed
1085cf::player->attach (
1086 on_load => sub {
1087 my ($pl, $path) = @_;
1088
1089 for my $o (all_objects $pl->ob) {
1090 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091 $o->set_ob_key_value ("_perl_data");
1092
1093 %$o = %{ Storable::thaw pack "H*", $value };
1094 }
1095 }
1096 },
1097);
1098
1099#############################################################################
1100 936
1101=head2 CORE EXTENSIONS 937=head2 CORE EXTENSIONS
1102 938
1103Functions and methods that extend core crossfire objects. 939Functions and methods that extend core crossfire objects.
1104 940
941=cut
942
943package cf::player;
944
945use Coro::AIO;
946
1105=head3 cf::player 947=head3 cf::player
1106 948
1107=over 4 949=over 4
1108 950
1109=item cf::player::exists $login 951=item cf::player::find $login
1110 952
1111Returns true when the given account exists. 953Returns the given player object, loading it if necessary (might block).
1112 954
1113=cut 955=cut
1114 956
1115sub cf::player::exists($) { 957sub playerdir($) {
1116 cf::player::find $_[0] 958 cf::localdir
1117 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 959 . "/"
960 . cf::playerdir
961 . "/"
962 . (ref $_[0] ? $_[0]->ob->name : $_[0])
963}
964
965sub path($) {
966 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967
968 (playerdir $login) . "/$login.pl"
969}
970
971sub find_active($) {
972 $cf::PLAYER{$_[0]}
973 and $cf::PLAYER{$_[0]}->active
974 and $cf::PLAYER{$_[0]}
975}
976
977sub exists($) {
978 my ($login) = @_;
979
980 $cf::PLAYER{$login}
981 or cf::sync_job { !aio_stat path $login }
982}
983
984sub find($) {
985 return $cf::PLAYER{$_[0]} || do {
986 my $login = $_[0];
987
988 my $guard = cf::lock_acquire "user_find:$login";
989
990 $cf::PLAYER{$_[0]} || do {
991 my $pl = load_pl path $login
992 or return;
993 $cf::PLAYER{$login} = $pl
994 }
995 }
996}
997
998sub save($) {
999 my ($pl) = @_;
1000
1001 return if $pl->{deny_save};
1002
1003 my $path = path $pl;
1004 my $guard = cf::lock_acquire "user_save:$path";
1005
1006 return if $pl->{deny_save};
1007
1008 aio_mkdir playerdir $pl, 0770;
1009 $pl->{last_save} = $cf::RUNTIME;
1010
1011 $pl->save_pl ($path);
1012 Coro::cede;
1013}
1014
1015sub new($) {
1016 my ($login) = @_;
1017
1018 my $self = create;
1019
1020 $self->ob->name ($login);
1021 $self->{deny_save} = 1;
1022
1023 $cf::PLAYER{$login} = $self;
1024
1025 $self
1026}
1027
1028=item $pl->quit_character
1029
1030Nukes the player without looking back. If logged in, the connection will
1031be destroyed. May block for a long time.
1032
1033=cut
1034
1035sub quit_character {
1036 my ($pl) = @_;
1037
1038 my $name = $pl->ob->name;
1039
1040 $pl->{deny_save} = 1;
1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1042
1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044 $pl->deactivate;
1045 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1046 $pl->ns->destroy if $pl->ns;
1047
1048 my $path = playerdir $pl;
1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1050 aio_rename $path, $temp;
1051 delete $cf::PLAYER{$pl->ob->name};
1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1074}
1075
1076=item cf::player::list_logins
1077
1078Returns am arrayref of all valid playernames in the system, can take a
1079while and may block, so not sync_job-capable, ever.
1080
1081=cut
1082
1083sub list_logins {
1084 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1085 or return [];
1086
1087 my @logins;
1088
1089 for my $login (@$dirs) {
1090 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1091 aio_read $fh, 0, 512, my $buf, 0 or next;
1092 $buf !~ /^password -------------$/m or next; # official not-valid tag
1093
1094 utf8::decode $login;
1095 push @logins, $login;
1096 }
1097
1098 \@logins
1099}
1100
1101=item $player->maps
1102
1103Returns an arrayref of map paths that are private for this
1104player. May block.
1105
1106=cut
1107
1108sub maps($) {
1109 my ($pl) = @_;
1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1113 my $files = aio_readdir playerdir $pl
1114 or return;
1115
1116 my @paths;
1117
1118 for (@$files) {
1119 utf8::decode $_;
1120 next if /\.(?:pl|pst)$/;
1121 next unless /^$PATH_SEP/o;
1122
1123 push @paths, cf::map::normalise "~$pl/$_";
1124 }
1125
1126 \@paths
1118} 1127}
1119 1128
1120=item $player->ext_reply ($msgid, $msgtype, %msg) 1129=item $player->ext_reply ($msgid, $msgtype, %msg)
1121 1130
1122Sends an ext reply to the player. 1131Sends an ext reply to the player.
1123 1132
1124=cut 1133=cut
1125 1134
1126sub cf::player::ext_reply($$$%) { 1135sub ext_reply($$$%) {
1127 my ($self, $id, %msg) = @_; 1136 my ($self, $id, %msg) = @_;
1128 1137
1129 $msg{msgid} = $id; 1138 $msg{msgid} = $id;
1130 1139
1131 $self->send ("ext " . to_json \%msg); 1140 $self->send ("ext " . cf::to_json \%msg);
1132} 1141}
1142
1143package cf;
1133 1144
1134=back 1145=back
1135 1146
1136 1147
1137=head3 cf::map 1148=head3 cf::map
1143package cf::map; 1154package cf::map;
1144 1155
1145use Fcntl; 1156use Fcntl;
1146use Coro::AIO; 1157use Coro::AIO;
1147 1158
1159use overload
1160 '""' => \&as_string,
1161 fallback => 1;
1162
1148our $MAX_RESET = 3600; 1163our $MAX_RESET = 3600;
1149our $DEFAULT_RESET = 3000; 1164our $DEFAULT_RESET = 3000;
1150 1165
1151sub generate_random_map { 1166sub generate_random_map {
1152 my ($path, $rmp) = @_; 1167 my ($self, $rmp) = @_;
1153
1154 # mit "rum" bekleckern, nicht 1168 # mit "rum" bekleckern, nicht
1155 cf::map::_create_random_map 1169 $self->_create_random_map (
1156 $path,
1157 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1170 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1171 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1172 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160 $rmp->{exit_on_final_map}, 1173 $rmp->{exit_on_final_map},
1161 $rmp->{xsize}, $rmp->{ysize}, 1174 $rmp->{xsize}, $rmp->{ysize},
1162 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1175 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1176 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1177 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1178 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1179 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167 (cf::region::find $rmp->{region}) 1180 (cf::region::find $rmp->{region}), $rmp->{custom}
1181 )
1182}
1183
1184=item cf::map->register ($regex, $prio)
1185
1186Register a handler for the map path matching the given regex at the
1187givne priority (higher is better, built-in handlers have priority 0, the
1188default).
1189
1190=cut
1191
1192sub register {
1193 my (undef, $regex, $prio) = @_;
1194 my $pkg = caller;
1195
1196 no strict;
1197 push @{"$pkg\::ISA"}, __PACKAGE__;
1198
1199 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1200}
1201
1202# also paths starting with '/'
1203$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1204
1205sub thawer_merge {
1206 my ($self, $merge) = @_;
1207
1208 # we have to keep some variables in memory intact
1209 local $self->{path};
1210 local $self->{load_path};
1211 local $self->{deny_save};
1212 local $self->{deny_reset};
1213
1214 $self->SUPER::thawer_merge ($merge);
1215}
1216
1217sub normalise {
1218 my ($path, $base) = @_;
1219
1220 $path = "$path"; # make sure its a string
1221
1222 $path =~ s/\.map$//;
1223
1224 # map plan:
1225 #
1226 # /! non-realised random map exit (special hack!)
1227 # {... are special paths that are not being touched
1228 # ?xxx/... are special absolute paths
1229 # ?random/... random maps
1230 # /... normal maps
1231 # ~user/... per-player map of a specific user
1232
1233 $path =~ s/$PATH_SEP/\//go;
1234
1235 # treat it as relative path if it starts with
1236 # something that looks reasonable
1237 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1238 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1239
1240 $base =~ s{[^/]+/?$}{};
1241 $path = "$base/$path";
1242 }
1243
1244 for ($path) {
1245 redo if s{//}{/};
1246 redo if s{/\.?/}{/};
1247 redo if s{/[^/]+/\.\./}{/};
1248 }
1249
1250 $path
1251}
1252
1253sub new_from_path {
1254 my (undef, $path, $base) = @_;
1255
1256 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1257
1258 $path = normalise $path, $base;
1259
1260 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1261 if ($path =~ $EXT_MAP{$pkg}[1]) {
1262 my $self = bless cf::map::new, $pkg;
1263 $self->{path} = $path; $self->path ($path);
1264 $self->init; # pass $1 etc.
1265 return $self;
1266 }
1267 }
1268
1269 Carp::carp "unable to resolve path '$path' (base '$base').";
1270 ()
1271}
1272
1273sub init {
1274 my ($self) = @_;
1275
1276 $self
1277}
1278
1279sub as_string {
1280 my ($self) = @_;
1281
1282 "$self->{path}"
1283}
1284
1285# the displayed name, this is a one way mapping
1286sub visible_name {
1287 &as_string
1288}
1289
1290# the original (read-only) location
1291sub load_path {
1292 my ($self) = @_;
1293
1294 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1295}
1296
1297# the temporary/swap location
1298sub save_path {
1299 my ($self) = @_;
1300
1301 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1302 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1303}
1304
1305# the unique path, undef == no special unique path
1306sub uniq_path {
1307 my ($self) = @_;
1308
1309 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1310 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1168} 1311}
1169 1312
1170# and all this just because we cannot iterate over 1313# and all this just because we cannot iterate over
1171# all maps in C++... 1314# all maps in C++...
1172sub change_all_map_light { 1315sub change_all_map_light {
1174 1317
1175 $_->change_map_light ($change) 1318 $_->change_map_light ($change)
1176 for grep $_->outdoor, values %cf::MAP; 1319 for grep $_->outdoor, values %cf::MAP;
1177} 1320}
1178 1321
1322sub unlink_save {
1323 my ($self) = @_;
1324
1325 utf8::encode (my $save = $self->save_path);
1326 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1327 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1328}
1329
1179sub try_load_header($) { 1330sub load_header_from($) {
1180 my ($path) = @_; 1331 my ($self, $path) = @_;
1181 1332
1182 utf8::encode $path; 1333 utf8::encode $path;
1183 aio_open $path, O_RDONLY, 0 1334 #aio_open $path, O_RDONLY, 0
1335 # or return;
1336
1337 $self->_load_header ($path)
1184 or return; 1338 or return;
1185 1339
1186 my $map = cf::map::new 1340 $self->{load_path} = $path;
1341
1342 1
1343}
1344
1345sub load_header_orig {
1346 my ($self) = @_;
1347
1348 $self->load_header_from ($self->load_path)
1349}
1350
1351sub load_header_temp {
1352 my ($self) = @_;
1353
1354 $self->load_header_from ($self->save_path)
1355}
1356
1357sub prepare_temp {
1358 my ($self) = @_;
1359
1360 $self->last_access ((delete $self->{last_access})
1361 || $cf::RUNTIME); #d#
1362 # safety
1363 $self->{instantiate_time} = $cf::RUNTIME
1364 if $self->{instantiate_time} > $cf::RUNTIME;
1365}
1366
1367sub prepare_orig {
1368 my ($self) = @_;
1369
1370 $self->{load_original} = 1;
1371 $self->{instantiate_time} = $cf::RUNTIME;
1372 $self->last_access ($cf::RUNTIME);
1373 $self->instantiate;
1374}
1375
1376sub load_header {
1377 my ($self) = @_;
1378
1379 if ($self->load_header_temp) {
1380 $self->prepare_temp;
1381 } else {
1382 $self->load_header_orig
1187 or return; 1383 or return;
1384 $self->prepare_orig;
1385 }
1188 1386
1189 $map->load_header ($path) 1387 1
1190 or return;
1191
1192 $map->{load_path} = $path;
1193
1194 $map
1195} 1388}
1196 1389
1197sub find; 1390sub find;
1198sub find { 1391sub find {
1199 my ($path, $origin) = @_; 1392 my ($path, $origin) = @_;
1200 1393
1201 #warn "find<$path,$origin>\n";#d#
1202
1203 $path = new cf::path $path, $origin && $origin->path; 1394 $path = normalise $path, $origin && $origin->path;
1204 my $key = $path->as_string;
1205 1395
1206 cf::lock_wait "map_find:$key"; 1396 cf::lock_wait "map_find:$path";
1207 1397
1208 $cf::MAP{$key} || do { 1398 $cf::MAP{$path} || do {
1209 my $guard = cf::lock_acquire "map_find:$key"; 1399 my $guard = cf::lock_acquire "map_find:$path";
1210 1400 my $map = new_from_path cf::map $path
1211 # do it the slow way
1212 my $map = try_load_header $path->save_path;
1213
1214 Coro::cede;
1215
1216 if ($map) {
1217 $map->last_access ((delete $map->{last_access})
1218 || $cf::RUNTIME); #d#
1219 # safety
1220 $map->{instantiate_time} = $cf::RUNTIME
1221 if $map->{instantiate_time} > $cf::RUNTIME;
1222 } else {
1223 if (my $rmp = $path->random_map_params) {
1224 $map = generate_random_map $key, $rmp;
1225 } else {
1226 $map = try_load_header $path->load_path;
1227 }
1228
1229 $map or return; 1401 or return;
1230 1402
1231 $map->{load_original} = 1;
1232 $map->{instantiate_time} = $cf::RUNTIME;
1233 $map->last_access ($cf::RUNTIME);
1234 $map->instantiate;
1235
1236 # per-player maps become, after loading, normal maps
1237 $map->per_player (0) if $path->{user_rel};
1238 }
1239
1240 $map->path ($key);
1241 $map->{path} = $path;
1242 $map->{last_save} = $cf::RUNTIME; 1403 $map->{last_save} = $cf::RUNTIME;
1243 1404
1244 Coro::cede; 1405 $map->load_header
1406 or return;
1245 1407
1246 if ($map->should_reset) { 1408 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1409 # doing this can freeze the server in a sync job, obviously
1410 #$cf::WAIT_FOR_TICK->wait;
1247 $map->reset; 1411 $map->reset;
1248 undef $guard; 1412 undef $guard;
1249 $map = find $path 1413 return find $path;
1250 or return;
1251 } 1414 }
1252 1415
1253 $cf::MAP{$key} = $map 1416 $cf::MAP{$path} = $map
1254 } 1417 }
1255} 1418}
1419
1420sub pre_load { }
1421sub post_load { }
1256 1422
1257sub load { 1423sub load {
1258 my ($self) = @_; 1424 my ($self) = @_;
1259 1425
1426 local $self->{deny_reset} = 1; # loading can take a long time
1427
1260 my $path = $self->{path}; 1428 my $path = $self->{path};
1261 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1429 my $guard = cf::lock_acquire "map_load:$path";
1262 1430
1263 return if $self->in_memory != cf::MAP_SWAPPED; 1431 return if $self->in_memory != cf::MAP_SWAPPED;
1264 1432
1265 $self->in_memory (cf::MAP_LOADING); 1433 $self->in_memory (cf::MAP_LOADING);
1266 1434
1267 $self->alloc; 1435 $self->alloc;
1436
1437 $self->pre_load;
1438
1268 $self->load_objects ($self->{load_path}, 1) 1439 $self->_load_objects ($self->{load_path}, 1)
1269 or return; 1440 or return;
1270 1441
1271 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1442 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272 if delete $self->{load_original}; 1443 if delete $self->{load_original};
1273 1444
1274 if (my $uniq = $path->uniq_path) { 1445 if (my $uniq = $self->uniq_path) {
1275 utf8::encode $uniq; 1446 utf8::encode $uniq;
1276 if (aio_open $uniq, O_RDONLY, 0) { 1447 if (aio_open $uniq, O_RDONLY, 0) {
1277 $self->clear_unique_items; 1448 $self->clear_unique_items;
1278 $self->load_objects ($uniq, 0); 1449 $self->_load_objects ($uniq, 0);
1279 } 1450 }
1280 } 1451 }
1281 1452
1282 Coro::cede; 1453 Coro::cede;
1283 1454
1284 # now do the right thing for maps 1455 # now do the right thing for maps
1285 $self->link_multipart_objects; 1456 $self->link_multipart_objects;
1286 1457
1287 if ($self->{path}->is_style_map) { 1458 unless ($self->{deny_activate}) {
1288 $self->{deny_save} = 1; 1459 $self->decay_objects;
1289 $self->{deny_reset} = 1;
1290 } else {
1291 $self->fix_auto_apply; 1460 $self->fix_auto_apply;
1292 $self->decay_objects;
1293 $self->update_buttons; 1461 $self->update_buttons;
1462 Coro::cede;
1294 $self->set_darkness_map; 1463 $self->set_darkness_map;
1295 $self->difficulty ($self->estimate_difficulty) 1464 $self->difficulty ($self->estimate_difficulty)
1296 unless $self->difficulty; 1465 unless $self->difficulty;
1466 Coro::cede;
1297 $self->activate; 1467 $self->activate;
1298 } 1468 }
1299 1469
1300 Coro::cede; 1470 $self->post_load;
1301 1471
1302 $self->in_memory (cf::MAP_IN_MEMORY); 1472 $self->in_memory (cf::MAP_IN_MEMORY);
1473}
1474
1475sub customise_for {
1476 my ($self, $ob) = @_;
1477
1478 return find "~" . $ob->name . "/" . $self->{path}
1479 if $self->per_player;
1480
1481 $self
1482}
1483
1484# find and load all maps in the 3x3 area around a map
1485sub load_diag {
1486 my ($map) = @_;
1487
1488 my @diag; # diagonal neighbours
1489
1490 for (0 .. 3) {
1491 my $neigh = $map->tile_path ($_)
1492 or next;
1493 $neigh = find $neigh, $map
1494 or next;
1495 $neigh->load;
1496
1497 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1498 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1499 }
1500
1501 for (@diag) {
1502 my $neigh = find @$_
1503 or next;
1504 $neigh->load;
1505 }
1303} 1506}
1304 1507
1305sub find_sync { 1508sub find_sync {
1306 my ($path, $origin) = @_; 1509 my ($path, $origin) = @_;
1307 1510
1308 cf::sync_job { cf::map::find $path, $origin } 1511 cf::sync_job { find $path, $origin }
1309} 1512}
1310 1513
1311sub do_load_sync { 1514sub do_load_sync {
1312 my ($map) = @_; 1515 my ($map) = @_;
1313 1516
1314 cf::sync_job { $map->load }; 1517 cf::sync_job { $map->load };
1315} 1518}
1316 1519
1520our %MAP_PREFETCH;
1521our $MAP_PREFETCHER = undef;
1522
1523sub find_async {
1524 my ($path, $origin) = @_;
1525
1526 $path = normalise $path, $origin && $origin->{path};
1527
1528 if (my $map = $cf::MAP{$path}) {
1529 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1530 }
1531
1532 undef $MAP_PREFETCH{$path};
1533 $MAP_PREFETCHER ||= cf::async {
1534 while (%MAP_PREFETCH) {
1535 for my $path (keys %MAP_PREFETCH) {
1536 my $map = find $path
1537 or next;
1538 $map->load;
1539
1540 delete $MAP_PREFETCH{$path};
1541 }
1542 }
1543 undef $MAP_PREFETCHER;
1544 };
1545 $MAP_PREFETCHER->prio (6);
1546
1547 ()
1548}
1549
1317sub save { 1550sub save {
1318 my ($self) = @_; 1551 my ($self) = @_;
1319 1552
1553 my $lock = cf::lock_acquire "map_data:" . $self->path;
1554
1320 $self->{last_save} = $cf::RUNTIME; 1555 $self->{last_save} = $cf::RUNTIME;
1321 1556
1322 return unless $self->dirty; 1557 return unless $self->dirty;
1323 1558
1324 my $save = $self->{path}->save_path; utf8::encode $save; 1559 my $save = $self->save_path; utf8::encode $save;
1325 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1560 my $uniq = $self->uniq_path; utf8::encode $uniq;
1326 1561
1327 $self->{load_path} = $save; 1562 $self->{load_path} = $save;
1328 1563
1329 return if $self->{deny_save}; 1564 return if $self->{deny_save};
1330 1565
1331 local $self->{last_access} = $self->last_access;#d# 1566 local $self->{last_access} = $self->last_access;#d#
1332 1567
1568 cf::async {
1569 $_->contr->save for $self->players;
1570 };
1571
1333 if ($uniq) { 1572 if ($uniq) {
1334 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1573 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335 $self->save_objects ($uniq, cf::IO_UNIQUES); 1574 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1336 } else { 1575 } else {
1337 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1576 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338 } 1577 }
1339} 1578}
1340 1579
1341sub swap_out { 1580sub swap_out {
1342 my ($self) = @_; 1581 my ($self) = @_;
1343 1582
1344 # save first because save cedes 1583 # save first because save cedes
1345 $self->save; 1584 $self->save;
1585
1586 my $lock = cf::lock_acquire "map_data:" . $self->path;
1346 1587
1347 return if $self->players; 1588 return if $self->players;
1348 return if $self->in_memory != cf::MAP_IN_MEMORY; 1589 return if $self->in_memory != cf::MAP_IN_MEMORY;
1349 return if $self->{deny_save}; 1590 return if $self->{deny_save};
1350 1591
1354 1595
1355sub reset_at { 1596sub reset_at {
1356 my ($self) = @_; 1597 my ($self) = @_;
1357 1598
1358 # TODO: safety, remove and allow resettable per-player maps 1599 # TODO: safety, remove and allow resettable per-player maps
1359 return 1e99 if $self->{path}{user_rel}; 1600 return 1e99 if $self->isa ("ext::map_per_player");#d#
1360 return 1e99 if $self->{deny_reset}; 1601 return 1e99 if $self->{deny_reset};
1361 1602
1362 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1603 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1604 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364 1605
1369 my ($self) = @_; 1610 my ($self) = @_;
1370 1611
1371 $self->reset_at <= $cf::RUNTIME 1612 $self->reset_at <= $cf::RUNTIME
1372} 1613}
1373 1614
1374sub unlink_save {
1375 my ($self) = @_;
1376
1377 utf8::encode (my $save = $self->{path}->save_path);
1378 aioreq_pri 3; IO::AIO::aio_unlink $save;
1379 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380}
1381
1382sub rename {
1383 my ($self, $new_path) = @_;
1384
1385 $self->unlink_save;
1386
1387 delete $cf::MAP{$self->path};
1388 $self->{path} = new cf::path $new_path;
1389 $self->path ($self->{path}->as_string);
1390 $cf::MAP{$self->path} = $self;
1391
1392 $self->save;
1393}
1394
1395sub reset { 1615sub reset {
1396 my ($self) = @_; 1616 my ($self) = @_;
1397 1617
1618 my $lock = cf::lock_acquire "map_data:$self->{path}";
1619
1398 return if $self->players; 1620 return if $self->players;
1399 return if $self->{path}{user_rel};#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1400 1622
1401 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1402 1624
1625 $self->in_memory (cf::MAP_SWAPPED);
1626
1627 # need to save uniques path
1628 unless ($self->{deny_save}) {
1629 my $uniq = $self->uniq_path; utf8::encode $uniq;
1630
1631 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1632 if $uniq;
1633 }
1634
1403 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1636
1637 $self->clear;
1404 1638
1405 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1406 1640
1407 $self->unlink_save; 1641 $self->unlink_save;
1408 $self->destroy; 1642 $self->destroy;
1411my $nuke_counter = "aaaa"; 1645my $nuke_counter = "aaaa";
1412 1646
1413sub nuke { 1647sub nuke {
1414 my ($self) = @_; 1648 my ($self) = @_;
1415 1649
1650 delete $cf::MAP{$self->path};
1651
1652 $self->unlink_save;
1653
1654 bless $self, "cf::map";
1655 delete $self->{deny_reset};
1416 $self->{deny_save} = 1; 1656 $self->{deny_save} = 1;
1417 $self->reset_timeout (1); 1657 $self->reset_timeout (1);
1418 $self->rename ("{nuke}/" . ($nuke_counter++)); 1658 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659
1660 $cf::MAP{$self->path} = $self;
1661
1419 $self->reset; # polite request, might not happen 1662 $self->reset; # polite request, might not happen
1420} 1663}
1421 1664
1422sub customise_for { 1665=item cf::map::unique_maps
1423 my ($map, $ob) = @_;
1424 1666
1425 if ($map->per_player) { 1667Returns an arrayref of paths of all shared maps that have
1426 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 1668instantiated unique items. May block.
1427 }
1428 1669
1429 $map 1670=cut
1430}
1431 1671
1432sub emergency_save { 1672sub unique_maps() {
1433 my $freeze_guard = cf::freeze_mainloop; 1673 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1674 or return;
1434 1675
1435 warn "enter emergency map save\n"; 1676 my @paths;
1436 1677
1437 cf::sync_job { 1678 for (@$files) {
1438 warn "begin emergency map save\n"; 1679 utf8::decode $_;
1439 $_->save for values %cf::MAP; 1680 next if /\.pst$/;
1681 next unless /^$PATH_SEP/o;
1682
1683 push @paths, cf::map::normalise $_;
1440 }; 1684 }
1441 1685
1442 warn "end emergency map save\n"; 1686 \@paths
1443} 1687}
1444 1688
1445package cf; 1689package cf;
1446 1690
1447=back 1691=back
1448 1692
1693=head3 cf::object
1694
1695=cut
1696
1697package cf::object;
1698
1699=over 4
1700
1701=item $ob->inv_recursive
1702
1703Returns the inventory of the object _and_ their inventories, recursively.
1704
1705=cut
1706
1707sub inv_recursive_;
1708sub inv_recursive_ {
1709 map { $_, inv_recursive_ $_->inv } @_
1710}
1711
1712sub inv_recursive {
1713 inv_recursive_ inv $_[0]
1714}
1715
1716package cf;
1717
1718=back
1449 1719
1450=head3 cf::object::player 1720=head3 cf::object::player
1451 1721
1452=over 4 1722=over 4
1453 1723
1493 1763
1494=item $player_object->enter_link 1764=item $player_object->enter_link
1495 1765
1496Freezes the player and moves him/her to a special map (C<{link}>). 1766Freezes the player and moves him/her to a special map (C<{link}>).
1497 1767
1498The player should be reaosnably safe there for short amounts of time. You 1768The player should be reasonably safe there for short amounts of time. You
1499I<MUST> call C<leave_link> as soon as possible, though. 1769I<MUST> call C<leave_link> as soon as possible, though.
1500 1770
1771Will never block.
1772
1501=item $player_object->leave_link ($map, $x, $y) 1773=item $player_object->leave_link ($map, $x, $y)
1502 1774
1503Moves the player out of the specila link map onto the given map. If the 1775Moves the player out of the special C<{link}> map onto the specified
1504map is not valid (or omitted), the player will be moved back to the 1776map. If the map is not valid (or omitted), the player will be moved back
1505location he/she was before the call to C<enter_link>, or, if that fails, 1777to the location he/she was before the call to C<enter_link>, or, if that
1506to the emergency map position. 1778fails, to the emergency map position.
1507 1779
1508Might block. 1780Might block.
1509 1781
1510=cut 1782=cut
1783
1784sub link_map {
1785 unless ($LINK_MAP) {
1786 $LINK_MAP = cf::map::find "{link}"
1787 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1788 $LINK_MAP->load;
1789 }
1790
1791 $LINK_MAP
1792}
1511 1793
1512sub cf::object::player::enter_link { 1794sub cf::object::player::enter_link {
1513 my ($self) = @_; 1795 my ($self) = @_;
1514 1796
1515 $self->deactivate_recursive; 1797 $self->deactivate_recursive;
1516 1798
1517 return if $self->map == $LINK_MAP; 1799 return if UNIVERSAL::isa $self->map, "ext::map_link";
1518 1800
1519 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1801 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520 if $self->map; 1802 if $self->map;
1521 1803
1522 $self->enter_map ($LINK_MAP, 20, 20); 1804 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1523} 1805}
1524 1806
1525sub cf::object::player::leave_link { 1807sub cf::object::player::leave_link {
1526 my ($self, $map, $x, $y) = @_; 1808 my ($self, $map, $x, $y) = @_;
1527 1809
1545 # use -1 or undef as default coordinates, not 0, 0 1827 # use -1 or undef as default coordinates, not 0, 0
1546 ($x, $y) = ($map->enter_x, $map->enter_y) 1828 ($x, $y) = ($map->enter_x, $map->enter_y)
1547 if $x <=0 && $y <= 0; 1829 if $x <=0 && $y <= 0;
1548 1830
1549 $map->load; 1831 $map->load;
1832 $map->load_diag;
1550 1833
1834 return unless $self->contr->active;
1551 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1553} 1839}
1554 1840
1555cf::player->attach ( 1841cf::player->attach (
1556 on_logout => sub { 1842 on_logout => sub {
1568 1854
1569 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1570 # should happen only on crashes 1856 # should happen only on crashes
1571 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1572 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1573 cf::async { 1859 (async {
1860 $pl->ob->reply (undef,
1861 "There was an internal problem at your last logout, "
1862 . "the server will try to bring you to your intended destination in a second.",
1863 cf::NDI_RED);
1574 # we need this sleep as the login has a concurrent enter_exit running 1864 # we need this sleep as the login has a concurrent enter_exit running
1575 # and this sleep increases chances of the player not ending up in scorn 1865 # and this sleep increases chances of the player not ending up in scorn
1576 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1577 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1578 }; 1868 })->prio (2);
1579 } 1869 }
1580 }, 1870 },
1581); 1871);
1582 1872
1583=item $player_object->goto_map ($path, $x, $y) 1873=item $player_object->goto ($path, $x, $y)
1584 1874
1585=cut 1875=cut
1586 1876
1587sub cf::object::player::goto_map { 1877sub cf::object::player::goto {
1588 my ($self, $path, $x, $y) = @_; 1878 my ($self, $path, $x, $y) = @_;
1589 1879
1590 $self->enter_link; 1880 $self->enter_link;
1591 1881
1592 (cf::async { 1882 (async {
1593 $path = new cf::path $path; 1883 my $map = eval {
1594
1595 my $map = cf::map::find $path->as_string; 1884 my $map = cf::map::find $path;
1596 $map = $map->customise_for ($self) if $map; 1885 $map = $map->customise_for ($self) if $map;
1597 1886 $map
1598# warn "entering ", $map->path, " at ($x, $y)\n" 1887 } or
1599# if $map;
1600
1601 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1888 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1602 1889
1603 $self->leave_link ($map, $x, $y); 1890 $self->leave_link ($map, $x, $y);
1604 })->prio (1); 1891 })->prio (1);
1605} 1892}
1606 1893
1610 1897
1611sub parse_random_map_params { 1898sub parse_random_map_params {
1612 my ($spec) = @_; 1899 my ($spec) = @_;
1613 1900
1614 my $rmp = { # defaults 1901 my $rmp = { # defaults
1615 xsize => 10, 1902 xsize => (cf::rndm 15, 40),
1616 ysize => 10, 1903 ysize => (cf::rndm 15, 40),
1904 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1905 #layout => string,
1617 }; 1906 };
1618 1907
1619 for (split /\n/, $spec) { 1908 for (split /\n/, $spec) {
1620 my ($k, $v) = split /\s+/, $_, 2; 1909 my ($k, $v) = split /\s+/, $_, 2;
1621 1910
1625 $rmp 1914 $rmp
1626} 1915}
1627 1916
1628sub prepare_random_map { 1917sub prepare_random_map {
1629 my ($exit) = @_; 1918 my ($exit) = @_;
1919
1920 my $guard = cf::lock_acquire "exit_prepare:$exit";
1630 1921
1631 # all this does is basically replace the /! path by 1922 # all this does is basically replace the /! path by
1632 # a new random map path (?random/...) with a seed 1923 # a new random map path (?random/...) with a seed
1633 # that depends on the exit object 1924 # that depends on the exit object
1634 1925
1635 my $rmp = parse_random_map_params $exit->msg; 1926 my $rmp = parse_random_map_params $exit->msg;
1636 1927
1637 if ($exit->map) { 1928 if ($exit->map) {
1638 $rmp->{region} = $exit->map->region_name; 1929 $rmp->{region} = $exit->region->name;
1639 $rmp->{origin_map} = $exit->map->path; 1930 $rmp->{origin_map} = $exit->map->path;
1640 $rmp->{origin_x} = $exit->x; 1931 $rmp->{origin_x} = $exit->x;
1641 $rmp->{origin_y} = $exit->y; 1932 $rmp->{origin_y} = $exit->y;
1642 } 1933 }
1643 1934
1644 $rmp->{random_seed} ||= $exit->random_seed; 1935 $rmp->{random_seed} ||= $exit->random_seed;
1645 1936
1646 my $data = cf::to_json $rmp; 1937 my $data = cf::to_json $rmp;
1647 my $md5 = Digest::MD5::md5_hex $data; 1938 my $md5 = Digest::MD5::md5_hex $data;
1939 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1648 1940
1649 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1941 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650 aio_write $fh, 0, (length $data), $data, 0; 1942 aio_write $fh, 0, (length $data), $data, 0;
1943 undef $fh;
1944 aio_rename "$meta~", $meta;
1651 1945
1652 $exit->slaying ("?random/$md5"); 1946 $exit->slaying ("?random/$md5");
1653 $exit->msg (undef); 1947 $exit->msg (undef);
1654 } 1948 }
1655} 1949}
1657sub cf::object::player::enter_exit { 1951sub cf::object::player::enter_exit {
1658 my ($self, $exit) = @_; 1952 my ($self, $exit) = @_;
1659 1953
1660 return unless $self->type == cf::PLAYER; 1954 return unless $self->type == cf::PLAYER;
1661 1955
1956 if ($exit->slaying eq "/!") {
1957 #TODO: this should de-fi-ni-te-ly not be a sync-job
1958 cf::sync_job { prepare_random_map $exit };
1959 }
1960
1961 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962 my $hp = $exit->stats->hp;
1963 my $sp = $exit->stats->sp;
1964
1662 $self->enter_link; 1965 $self->enter_link;
1663 1966
1664 (cf::async { 1967 (async {
1665 $self->deactivate_recursive; # just to be sure 1968 $self->deactivate_recursive; # just to be sure
1666 unless (eval { 1969 unless (eval {
1667 prepare_random_map $exit 1970 $self->goto ($slaying, $hp, $sp);
1668 if $exit->slaying eq "/!";
1669
1670 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672 1971
1673 1; 1972 1;
1674 }) { 1973 }) {
1675 $self->message ("Something went wrong deep within the crossfire server. " 1974 $self->message ("Something went wrong deep within the crossfire server. "
1676 . "I'll try to bring you back to the map you were before. " 1975 . "I'll try to bring you back to the map you were before. "
1677 . "Please report this to the dungeon master", 1976 . "Please report this to the dungeon master!",
1678 cf::NDI_UNIQUE | cf::NDI_RED); 1977 cf::NDI_UNIQUE | cf::NDI_RED);
1679 1978
1680 warn "ERROR in enter_exit: $@"; 1979 warn "ERROR in enter_exit: $@";
1681 $self->leave_link; 1980 $self->leave_link;
1682 } 1981 }
1696 1995
1697sub cf::client::send_drawinfo { 1996sub cf::client::send_drawinfo {
1698 my ($self, $text, $flags) = @_; 1997 my ($self, $text, $flags) = @_;
1699 1998
1700 utf8::encode $text; 1999 utf8::encode $text;
1701 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2000 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702} 2001}
1703 2002
1704 2003
1705=item $success = $client->query ($flags, "text", \&cb) 2004=item $success = $client->query ($flags, "text", \&cb)
1706 2005
1737 # get handled first 2036 # get handled first
1738 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
1739 or return; # be conservative, not sure how that can happen, but we saw a crash here 2038 or return; # be conservative, not sure how that can happen, but we saw a crash here
1740 2039
1741 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742 2042
1743 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
1744 2044
1745 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
1746 if (@$queue) { 2046 if (@$queue) {
1750 } 2050 }
1751 } 2051 }
1752 }, 2052 },
1753); 2053);
1754 2054
1755=item $client->coro (\&cb) 2055=item $client->async (\&cb)
1756 2056
1757Create a new coroutine, running the specified callback. The coroutine will 2057Create a new coroutine, running the specified callback. The coroutine will
1758be automatically cancelled when the client gets destroyed (e.g. on logout, 2058be automatically cancelled when the client gets destroyed (e.g. on logout,
1759or loss of connection). 2059or loss of connection).
1760 2060
1761=cut 2061=cut
1762 2062
1763sub cf::client::coro { 2063sub cf::client::async {
1764 my ($self, $cb) = @_; 2064 my ($self, $cb) = @_;
1765 2065
1766 my $coro = &cf::async ($cb); 2066 my $coro = &Coro::async ($cb);
1767 2067
1768 $coro->on_destroy (sub { 2068 $coro->on_destroy (sub {
1769 delete $self->{_coro}{$coro+0}; 2069 delete $self->{_coro}{$coro+0};
1770 }); 2070 });
1771 2071
1907The parameter C<$family> should best start with the name of the extension 2207The parameter C<$family> should best start with the name of the extension
1908using it, it should be unique. 2208using it, it should be unique.
1909 2209
1910=over 4 2210=over 4
1911 2211
1912=item $hashref = cf::db_get $family
1913
1914Return a hashref for use by the extension C<$family>, which can be
1915modified. After modifications, you have to call C<cf::db_dirty> or
1916C<cf::db_sync>.
1917
1918=item $value = cf::db_get $family => $key 2212=item $value = cf::db_get $family => $key
1919 2213
1920Returns a single value from the database 2214Returns a single value from the database.
1921
1922=item cf::db_put $family => $hashref
1923
1924Stores the given family hashref into the database. Updates are delayed, if
1925you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926 2215
1927=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
1928 2217
1929Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores the given C<$value> in the family.
1930want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932=item cf::db_dirty
1933
1934Marks the database as dirty, to be updated at a later time.
1935
1936=item cf::db_sync
1937
1938Immediately write the database to disk I<if it is dirty>.
1939 2219
1940=cut 2220=cut
1941 2221
1942our $DB; 2222our $DB;
1943 2223
1944{ 2224sub db_init {
2225 unless ($DB) {
2226 $DB = BDB::db_create $DB_ENV;
2227
2228 cf::sync_job {
2229 eval {
2230 $DB->set_flags (BDB::CHKSUM);
2231
2232 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234 cf::cleanup "db_open(db): $!" if $!;
2235 };
2236 cf::cleanup "db_open(db): $@" if $@;
2237 };
2238
1945 my $path = cf::localdir . "/database.pst"; 2239 my $path = cf::localdir . "/database.pst";
2240 if (stat $path) {
2241 cf::sync_job {
2242 my $pst = Storable::retrieve $path;
1946 2243
1947 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
1948 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
1949 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
1950 2248
1951 my $pid; 2249 unlink $path;
1952
1953 sub db_save() {
1954 waitpid $pid, 0 if $pid;
1955 if (0 == ($pid = fork)) {
1956 $DB->{_meta}{version} = 1;
1957 Storable::nstore $DB, "$path~";
1958 rename "$path~", $path;
1959 cf::_exit 0 if defined $pid;
1960 } 2250 };
1961 } 2251 }
1962
1963 my $dirty;
1964
1965 sub db_sync() {
1966 db_save if $dirty;
1967 undef $dirty;
1968 }
1969
1970 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971 db_sync;
1972 }); 2252 }
2253}
1973 2254
1974 sub db_dirty() {
1975 $dirty = 1;
1976 $idle->start;
1977 }
1978
1979 sub db_get($;$) { 2255sub db_get($$) {
1980 @_ >= 2 2256 my $key = "$_[0]/$_[1]";
1981 ? $DB->{$_[0]}{$_[1]}
1982 : ($DB->{$_[0]} ||= { })
1983 }
1984 2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
1985 sub db_put($$;$) { 2266sub db_put($$$) {
1986 if (@_ >= 3) { 2267 BDB::dbreq_pri 4;
1987 $DB->{$_[0]}{$_[1]} = $_[2]; 2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269}
2270
2271#############################################################################
2272# the server's init and main functions
2273
2274sub load_faces {
2275 my $path = sprintf "%s/faces", cf::datadir;
2276
2277 warn "loading faces from $path\n";
2278
2279 my $faces;
2280 0 < aio_load $path, $faces
2281 or die "$path: $!";
2282
2283 Coro::cede;
2284 $faces = Storable::thaw $faces;
2285 Coro::cede;
2286
2287 my $meta = delete $faces->{""};
2288 $meta->{version} == 1
2289 or cf::cleanup "$path: version mismatch, cannot proceed.";
2290
2291 while (my ($face, $info) = each %$faces) {
2292 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2294 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2295 Coro::cede;
2296 }
2297
2298 while (my ($face, $info) = each %$faces) {
2299 next unless $info->{smooth};
2300 my $idx = cf::face::find $face
2301 or next;
2302 if (my $smooth = cf::face::find $info->{smooth}) {
2303 cf::face::set_smooth $idx, $smooth;
1988 } else { 2304 } else {
1989 $DB->{$_[0]} = $_[1]; 2305 warn "smooth face '$info->{smooth}' not found for face '$face'";
1990 }
1991 db_dirty;
1992 }
1993
1994 cf::global->attach (
1995 prio => 10000,
1996 on_cleanup => sub {
1997 db_sync;
1998 }, 2306 }
1999 ); 2307 Coro::cede;
2000} 2308 }
2001 2309
2002############################################################################# 2310 1
2003# the server's main() 2311}
2312
2313sub reload_resources {
2314 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2315 or die "unable to load regions file\n";#d#
2316 load_faces
2317 or die "unable to load faces\n";#d#
2318}
2319
2320sub init {
2321 reload_resources;
2322}
2004 2323
2005sub cfg_load { 2324sub cfg_load {
2006 open my $fh, "<:utf8", cf::confdir . "/config" 2325 open my $fh, "<:utf8", cf::confdir . "/config"
2007 or return; 2326 or return;
2008 2327
2009 local $/; 2328 local $/;
2010 *CFG = YAML::Syck::Load <$fh>; 2329 *CFG = YAML::Syck::Load <$fh>;
2011 2330
2012 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2331 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013 2332
2333 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2334 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2335
2014 if (exists $CFG{mlockall}) { 2336 if (exists $CFG{mlockall}) {
2015 eval { 2337 eval {
2016 $CFG{mlockall} ? &mlockall : &munlockall 2338 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017 and die "WARNING: m(un)lockall failed: $!\n"; 2339 and die "WARNING: m(un)lockall failed: $!\n";
2018 }; 2340 };
2019 warn $@ if $@; 2341 warn $@ if $@;
2020 } 2342 }
2021} 2343}
2022 2344
2023sub main { 2345sub main {
2024 # we must not ever block the main coroutine 2346 # we must not ever block the main coroutine
2025 local $Coro::idle = sub { 2347 local $Coro::idle = sub {
2026 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2348 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027 (Coro::unblock_sub { 2349 (async {
2028 Event::one_event; 2350 Event::one_event;
2029 })->(); 2351 })->prio (Coro::PRIO_MAX);
2030 }; 2352 };
2031 2353
2032 cfg_load; 2354 cfg_load;
2033 db_load; 2355 db_init;
2034 load_extensions; 2356 load_extensions;
2357
2358 $TICK_WATCHER->start;
2035 Event::loop; 2359 Event::loop;
2036} 2360}
2037 2361
2038############################################################################# 2362#############################################################################
2039# initialisation 2363# initialisation and cleanup
2364
2365# install some emergency cleanup handlers
2366BEGIN {
2367 for my $signal (qw(INT HUP TERM)) {
2368 Event->signal (
2369 reentrant => 0,
2370 data => WF_AUTOCANCEL,
2371 signal => $signal,
2372 prio => 0,
2373 cb => sub {
2374 cf::cleanup "SIG$signal";
2375 },
2376 );
2377 }
2378}
2379
2380sub emergency_save() {
2381 my $freeze_guard = cf::freeze_mainloop;
2382
2383 warn "enter emergency perl save\n";
2384
2385 cf::sync_job {
2386 # use a peculiar iteration method to avoid tripping on perl
2387 # refcount bugs in for. also avoids problems with players
2388 # and maps saved/destroyed asynchronously.
2389 warn "begin emergency player save\n";
2390 for my $login (keys %cf::PLAYER) {
2391 my $pl = $cf::PLAYER{$login} or next;
2392 $pl->valid or next;
2393 $pl->save;
2394 }
2395 warn "end emergency player save\n";
2396
2397 warn "begin emergency map save\n";
2398 for my $path (keys %cf::MAP) {
2399 my $map = $cf::MAP{$path} or next;
2400 $map->valid or next;
2401 $map->save;
2402 }
2403 warn "end emergency map save\n";
2404
2405 warn "begin emergency database checkpoint\n";
2406 BDB::db_env_txn_checkpoint $DB_ENV;
2407 warn "end emergency database checkpoint\n";
2408 };
2409
2410 warn "leave emergency perl save\n";
2411}
2412
2413sub post_cleanup {
2414 my ($make_core) = @_;
2415
2416 warn Carp::longmess "post_cleanup backtrace"
2417 if $make_core;
2418}
2040 2419
2041sub reload() { 2420sub reload() {
2042 # can/must only be called in main 2421 # can/must only be called in main
2043 if ($Coro::current != $Coro::main) { 2422 if ($Coro::current != $Coro::main) {
2044 warn "can only reload from main coroutine\n"; 2423 warn "can only reload from main coroutine";
2045 return; 2424 return;
2046 } 2425 }
2047 2426
2048 warn "reloading..."; 2427 warn "reloading...";
2049 2428
2050 my $guard = freeze_mainloop; 2429 warn "entering sync_job";
2430
2431 cf::sync_job {
2432 cf::write_runtime; # external watchdog should not bark
2051 cf::emergency_save; 2433 cf::emergency_save;
2434 cf::write_runtime; # external watchdog should not bark
2052 2435
2053 eval { 2436 warn "syncing database to disk";
2437 BDB::db_env_txn_checkpoint $DB_ENV;
2438
2054 # if anything goes wrong in here, we should simply crash as we already saved 2439 # if anything goes wrong in here, we should simply crash as we already saved
2055 2440
2056 # cancel all watchers 2441 warn "cancelling all WF_AUTOCANCEL watchers";
2057 for (Event::all_watchers) { 2442 for (Event::all_watchers) {
2058 $_->cancel if $_->data & WF_AUTOCANCEL; 2443 $_->cancel if $_->data & WF_AUTOCANCEL;
2059 } 2444 }
2060 2445
2446 warn "flushing outstanding aio requests";
2447 for (;;) {
2448 BDB::flush;
2449 IO::AIO::flush;
2450 Coro::cede;
2451 last unless IO::AIO::nreqs || BDB::nreqs;
2452 warn "iterate...";
2453 }
2454
2455 ++$RELOAD;
2456
2061 # cancel all extension coros 2457 warn "cancelling all extension coros";
2062 $_->cancel for values %EXT_CORO; 2458 $_->cancel for values %EXT_CORO;
2063 %EXT_CORO = (); 2459 %EXT_CORO = ();
2064 2460
2065 # unload all extensions 2461 warn "removing commands";
2066 for (@exts) { 2462 %COMMAND = ();
2463
2464 warn "removing ext commands";
2465 %EXTCMD = ();
2466
2467 warn "unloading/nuking all extensions";
2468 for my $pkg (@EXTS) {
2067 warn "unloading <$_>"; 2469 warn "... unloading $pkg";
2068 unload_extension $_; 2470
2471 if (my $cb = $pkg->can ("unload")) {
2472 eval {
2473 $cb->($pkg);
2474 1
2475 } or warn "$pkg unloaded, but with errors: $@";
2069 } 2476 }
2070 2477
2478 warn "... nuking $pkg";
2479 Symbol::delete_package $pkg;
2480 }
2481
2071 # unload all modules loaded from $LIBDIR 2482 warn "unloading all perl modules loaded from $LIBDIR";
2072 while (my ($k, $v) = each %INC) { 2483 while (my ($k, $v) = each %INC) {
2073 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2484 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074 2485
2075 warn "removing <$k>"; 2486 warn "... unloading $k";
2076 delete $INC{$k}; 2487 delete $INC{$k};
2077 2488
2078 $k =~ s/\.pm$//; 2489 $k =~ s/\.pm$//;
2079 $k =~ s/\//::/g; 2490 $k =~ s/\//::/g;
2080 2491
2083 } 2494 }
2084 2495
2085 Symbol::delete_package $k; 2496 Symbol::delete_package $k;
2086 } 2497 }
2087 2498
2088 # sync database to disk
2089 cf::db_sync;
2090 IO::AIO::flush;
2091
2092 # get rid of safe::, as good as possible 2499 warn "getting rid of safe::, as good as possible";
2093 Symbol::delete_package "safe::$_" 2500 Symbol::delete_package "safe::$_"
2094 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2501 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095 2502
2096 # remove register_script_function callbacks
2097 # TODO
2098
2099 # unload cf.pm "a bit" 2503 warn "unloading cf.pm \"a bit\"";
2100 delete $INC{"cf.pm"}; 2504 delete $INC{"cf.pm"};
2101 2505
2102 # don't, removes xs symbols, too, 2506 # don't, removes xs symbols, too,
2103 # and global variables created in xs 2507 # and global variables created in xs
2104 #Symbol::delete_package __PACKAGE__; 2508 #Symbol::delete_package __PACKAGE__;
2105 2509
2106 # reload cf.pm 2510 warn "unload completed, starting to reload now";
2511
2107 warn "reloading cf.pm"; 2512 warn "reloading cf.pm";
2108 require cf; 2513 require cf;
2109 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2514 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110 2515
2111 # load config and database again 2516 warn "loading config and database again";
2112 cf::cfg_load; 2517 cf::cfg_load;
2113 cf::db_load;
2114 2518
2115 # load extensions
2116 warn "load extensions"; 2519 warn "loading extensions";
2117 cf::load_extensions; 2520 cf::load_extensions;
2118 2521
2119 # reattach attachments to objects 2522 warn "reattaching attachments to objects/players";
2120 warn "reattach"; 2523 _global_reattach; # objects, sockets
2121 _global_reattach; 2524 warn "reattaching attachments to maps";
2122 }; 2525 reattach $_ for values %MAP;
2526 warn "reattaching attachments to players";
2527 reattach $_ for values %PLAYER;
2123 2528
2124 if ($@) { 2529 warn "loading reloadable resources";
2530 reload_resources;
2531
2532 warn "leaving sync_job";
2533
2534 1
2535 } or do {
2125 warn $@; 2536 warn $@;
2126 warn "error while reloading, exiting."; 2537 warn "error while reloading, exiting.";
2127 exit 1; 2538 exit 1;
2128 } 2539 };
2129 2540
2130 warn "reloaded successfully"; 2541 warn "reloaded";
2131}; 2542};
2132 2543
2133############################################################################# 2544our $RELOAD_WATCHER; # used only during reload
2134
2135unless ($LINK_MAP) {
2136 $LINK_MAP = cf::map::new;
2137
2138 $LINK_MAP->width (41);
2139 $LINK_MAP->height (41);
2140 $LINK_MAP->alloc;
2141 $LINK_MAP->path ("{link}");
2142 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145 # dirty hack because... archetypes are not yet loaded
2146 Event->timer (
2147 after => 2,
2148 cb => sub {
2149 $_[0]->w->cancel;
2150
2151 # provide some exits "home"
2152 my $exit = cf::object::new "exit";
2153
2154 $exit->slaying ($EMERGENCY_POSITION->[0]);
2155 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158 $LINK_MAP->insert ($exit->clone, 19, 19);
2159 $LINK_MAP->insert ($exit->clone, 19, 20);
2160 $LINK_MAP->insert ($exit->clone, 19, 21);
2161 $LINK_MAP->insert ($exit->clone, 20, 19);
2162 $LINK_MAP->insert ($exit->clone, 20, 21);
2163 $LINK_MAP->insert ($exit->clone, 21, 19);
2164 $LINK_MAP->insert ($exit->clone, 21, 20);
2165 $LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167 $exit->destroy;
2168 });
2169
2170 $LINK_MAP->{deny_save} = 1;
2171 $LINK_MAP->{deny_reset} = 1;
2172
2173 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174}
2175
2176register "<global>", __PACKAGE__;
2177 2545
2178register_command "reload" => sub { 2546register_command "reload" => sub {
2179 my ($who, $arg) = @_; 2547 my ($who, $arg) = @_;
2180 2548
2181 if ($who->flag (FLAG_WIZ)) { 2549 if ($who->flag (FLAG_WIZ)) {
2182 $who->message ("start of reload."); 2550 $who->message ("reloading server.");
2551
2552 # doing reload synchronously and two reloads happen back-to-back,
2553 # coro crashes during coro_state_free->destroy here.
2554
2555 $RELOAD_WATCHER ||= Event->timer (
2556 reentrant => 0,
2557 after => 0,
2558 data => WF_AUTOCANCEL,
2559 cb => sub {
2183 reload; 2560 reload;
2184 $who->message ("end of reload."); 2561 undef $RELOAD_WATCHER;
2562 },
2563 );
2185 } 2564 }
2186}; 2565};
2187 2566
2188unshift @INC, $LIBDIR; 2567unshift @INC, $LIBDIR;
2568
2569my $bug_warning = 0;
2189 2570
2190$TICK_WATCHER = Event->timer ( 2571$TICK_WATCHER = Event->timer (
2191 reentrant => 0, 2572 reentrant => 0,
2573 parked => 1,
2192 prio => 0, 2574 prio => 0,
2193 at => $NEXT_TICK || $TICK, 2575 at => $NEXT_TICK || $TICK,
2194 data => WF_AUTOCANCEL, 2576 data => WF_AUTOCANCEL,
2195 cb => sub { 2577 cb => sub {
2578 if ($Coro::current != $Coro::main) {
2579 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2580 unless ++$bug_warning > 10;
2581 return;
2582 }
2583
2584 $NOW = Event::time;
2585
2196 cf::server_tick; # one server iteration 2586 cf::server_tick; # one server iteration
2197 $RUNTIME += $TICK; 2587 $RUNTIME += $TICK;
2198 $NEXT_TICK += $TICK; 2588 $NEXT_TICK += $TICK;
2589
2590 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2591 $NEXT_RUNTIME_WRITE = $NOW + 10;
2592 Coro::async_pool {
2593 write_runtime
2594 or warn "ERROR: unable to write runtime file: $!";
2595 };
2596 }
2597
2598 $WAIT_FOR_TICK->broadcast;
2599 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2600
2601# my $AFTER = Event::time;
2602# warn $AFTER - $NOW;#d#
2199 2603
2200 # if we are delayed by four ticks or more, skip them all 2604 # if we are delayed by four ticks or more, skip them all
2201 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2605 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2202 2606
2203 $TICK_WATCHER->at ($NEXT_TICK); 2607 $TICK_WATCHER->at ($NEXT_TICK);
2204 $TICK_WATCHER->start; 2608 $TICK_WATCHER->start;
2205 }, 2609 },
2206); 2610);
2207 2611
2612{
2208IO::AIO::max_poll_time $TICK * 0.2; 2613 BDB::max_poll_time $TICK * 0.1;
2209 2614 $BDB_POLL_WATCHER = Event->io (
2210Event->io ( 2615 reentrant => 0,
2211 fd => IO::AIO::poll_fileno, 2616 fd => BDB::poll_fileno,
2212 poll => 'r', 2617 poll => 'r',
2213 prio => 5, 2618 prio => 0,
2214 data => WF_AUTOCANCEL,
2215 cb => \&IO::AIO::poll_cb,
2216);
2217
2218Event->timer (
2219 data => WF_AUTOCANCEL, 2619 data => WF_AUTOCANCEL,
2220 after => 0, 2620 cb => \&BDB::poll_cb,
2221 interval => 10, 2621 );
2222 cb => sub { 2622 BDB::min_parallel 8;
2223 (Coro::unblock_sub { 2623
2224 write_runtime 2624 BDB::set_sync_prepare {
2225 or warn "ERROR: unable to write runtime file: $!"; 2625 my $status;
2626 my $current = $Coro::current;
2627 (
2628 sub {
2629 $status = $!;
2630 $current->ready; undef $current;
2631 },
2632 sub {
2633 Coro::schedule while defined $current;
2634 $! = $status;
2635 },
2636 )
2637 };
2638
2639 unless ($DB_ENV) {
2640 $DB_ENV = BDB::db_env_create;
2641
2642 cf::sync_job {
2643 eval {
2644 BDB::db_env_open
2645 $DB_ENV,
2646 $BDB_ENV_DIR,
2647 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2648 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2649 0666;
2650
2651 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2652
2653 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2654 $DB_ENV->set_lk_detect;
2655 };
2656
2657 cf::cleanup "db_env_open(db): $@" if $@;
2226 })->(); 2658 };
2227 }, 2659 }
2228); 2660}
2661
2662{
2663 IO::AIO::min_parallel 8;
2664
2665 undef $Coro::AIO::WATCHER;
2666 IO::AIO::max_poll_time $TICK * 0.1;
2667 $AIO_POLL_WATCHER = Event->io (
2668 reentrant => 0,
2669 data => WF_AUTOCANCEL,
2670 fd => IO::AIO::poll_fileno,
2671 poll => 'r',
2672 prio => 6,
2673 cb => \&IO::AIO::poll_cb,
2674 );
2675}
2229 2676
2230END { cf::emergency_save } 2677END { cf::emergency_save }
2231 2678
22321 26791
2233 2680

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