ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/lib/cf.pm
(Generate patch)

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.224 by root, Mon Mar 12 21:42:12 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 $FREEZE;
55our $RANDOM_MAPS = cf::localdir . "/random"; 73our $RANDOM_MAPS = cf::localdir . "/random";
56our %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
57 81
58binmode STDOUT; 82binmode STDOUT;
59binmode STDERR; 83binmode STDERR;
60 84
61# read virtual server time, if available 85# read virtual server time, if available
68mkdir cf::localdir; 92mkdir cf::localdir;
69mkdir cf::localdir . "/" . cf::playerdir; 93mkdir cf::localdir . "/" . cf::playerdir;
70mkdir cf::localdir . "/" . cf::tmpdir; 94mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir; 95mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS; 96mkdir $RANDOM_MAPS;
97mkdir $BDB_ENV_DIR;
73 98
74# a special map that is always available 99our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 100
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 101sub cf::map::normalise;
78 102
79############################################################################# 103#############################################################################
80 104
81=head2 GLOBAL VARIABLES 105=head2 GLOBAL VARIABLES
82 106
106 130
107=item %cf::CFG 131=item %cf::CFG
108 132
109Configuration for the server, loaded from C</etc/crossfire/config>, or 133Configuration for the server, loaded from C</etc/crossfire/config>, or
110from 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.
111 142
112=back 143=back
113 144
114=cut 145=cut
115 146
119 utf8::encode $msg; 150 utf8::encode $msg;
120 151
121 $msg .= "\n" 152 $msg .= "\n"
122 unless $msg =~ /\n$/; 153 unless $msg =~ /\n$/;
123 154
124 LOG llevError, "cfperl: $msg"; 155 LOG llevError, $msg;
125 }; 156 };
126} 157}
127 158
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 159@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 160@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
147 178
148$Event::DIED = sub { 179$Event::DIED = sub {
149 warn "error in event callback: @_"; 180 warn "error in event callback: @_";
150}; 181};
151 182
152my %ext_pkg;
153my @exts;
154my @hook;
155
156=head2 UTILITY FUNCTIONS 183=head2 UTILITY FUNCTIONS
157 184
158=over 4 185=over 4
159 186
187=item dumpval $ref
188
160=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}
161 209
162use JSON::Syck (); # TODO# replace by JSON::PC once working 210use JSON::Syck (); # TODO# replace by JSON::PC once working
163 211
164=item $ref = cf::from_json $json 212=item $ref = cf::from_json $json
165 213
181sub to_json($) { 229sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 230 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 231 JSON::Syck::Dump $_[0]
184} 232}
185 233
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 234=item cf::lock_wait $string
209 235
210Wait until the given lock is available. See cf::lock_acquire. 236Wait until the given lock is available. See cf::lock_acquire.
211 237
212=item my $lock = cf::lock_acquire $string 238=item my $lock = cf::lock_acquire $string
213 239
214Wait 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
215a 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,
216for example when the coroutine gets canceled), the lock is automatically 242for example when the coroutine gets canceled), the lock is automatically
217returned. 243returned.
218 244
219Lock names should begin with a unique identifier (for example, find_map 245Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 246uses map_find and cf::map::load uses map_load).
221 247
222=cut 248=cut
223 249
224our %LOCK; 250our %LOCK;
225 251
239 # wait, to be sure we are not locked 265 # wait, to be sure we are not locked
240 lock_wait $key; 266 lock_wait $key;
241 267
242 $LOCK{$key} = []; 268 $LOCK{$key} = [];
243 269
244 cf::guard { 270 Coro::guard {
245 # wake up all waiters, to be on the safe side 271 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 272 $_->ready for @{ delete $LOCK{$key} };
247 } 273 }
248} 274}
249 275
276sub freeze_mainloop {
277 return unless $TICK_WATCHER->is_active;
278
279 my $guard = Coro::guard {
280 $TICK_WATCHER->start;
281 };
282 $TICK_WATCHER->stop;
283 $guard
284}
285
250=item cf::async { BLOCK } 286=item cf::async { BLOCK }
251 287
252Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 288Currently the same as Coro::async_pool, meaning you cannot use
253error instead of exiting the server in case of a problem. 289C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
290thing you are allowed to do is call C<prio> on it.
254 291
255=cut 292=cut
256 293
257sub async(&) { 294BEGIN { *async = \&Coro::async_pool }
258 my ($cb) = @_;
259
260 Coro::async {
261 eval { $cb->() };
262 warn $@ if $@;
263 }
264}
265 295
266=item cf::sync_job { BLOCK } 296=item cf::sync_job { BLOCK }
267 297
268The design of crossfire+ requires that the main coro ($Coro::main) is 298The design of crossfire+ requires that the main coro ($Coro::main) is
269always able to handle events or runnable, as crossfire+ is only partly 299always able to handle events or runnable, as crossfire+ is only partly
283 # this is the main coro, too bad, we have to block 313 # this is the main coro, too bad, we have to block
284 # till the operation succeeds, freezing the server :/ 314 # till the operation succeeds, freezing the server :/
285 315
286 # TODO: use suspend/resume instead 316 # TODO: use suspend/resume instead
287 # (but this is cancel-safe) 317 # (but this is cancel-safe)
288 local $FREEZE = 1; 318 my $freeze_guard = freeze_mainloop;
289 319
290 my $busy = 1; 320 my $busy = 1;
291 my @res; 321 my @res;
292 322
293 (Coro::async { 323 (async {
294 @res = eval { $job->() }; 324 @res = eval { $job->() };
295 warn $@ if $@; 325 warn $@ if $@;
296 undef $busy; 326 undef $busy;
297 })->prio (Coro::PRIO_MAX); 327 })->prio (Coro::PRIO_MAX);
298 328
299 while ($busy) { 329 while ($busy) {
300 Coro::cede_notself; 330 Coro::cede or Event::one_event;
301 Event::one_event unless Coro::nready;
302 } 331 }
303 332
304 wantarray ? @res : $res[0] 333 wantarray ? @res : $res[0]
305 } else { 334 } else {
306 # we are in another coroutine, how wonderful, everything just works 335 # we are in another coroutine, how wonderful, everything just works
307 336
308 $job->() 337 $job->()
309 } 338 }
310} 339}
311 340
312=item $coro = cf::coro { BLOCK } 341=item $coro = cf::async_ext { BLOCK }
313 342
314Creates and returns a new coro. This coro is automcatially being canceled 343Like async, but this coro is automatically being canceled when the
315when the extension calling this is being unloaded. 344extension calling this is being unloaded.
316 345
317=cut 346=cut
318 347
319sub coro(&) { 348sub async_ext(&) {
320 my $cb = shift; 349 my $cb = shift;
321 350
322 my $coro = &cf::async ($cb); 351 my $coro = &Coro::async ($cb);
323 352
324 $coro->on_destroy (sub { 353 $coro->on_destroy (sub {
325 delete $EXT_CORO{$coro+0}; 354 delete $EXT_CORO{$coro+0};
326 }); 355 });
327 $EXT_CORO{$coro+0} = $coro; 356 $EXT_CORO{$coro+0} = $coro;
328 357
329 $coro 358 $coro
330} 359}
331 360
332sub write_runtime { 361sub write_runtime {
362 my $guard = cf::lock_acquire "write_runtime";
363
333 my $runtime = cf::localdir . "/runtime"; 364 my $runtime = cf::localdir . "/runtime";
334 365
335 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 366 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336 or return; 367 or return;
337 368
369 my $value = $cf::RUNTIME + 90 + 10;
338 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
339 (aio_write $fh, 0, (length $value), $value, 0) <= 0 373 (aio_write $fh, 0, (length $value), $value, 0) <= 0
340 and return; 374 and return;
341 375
376 # always fsync - this file is important
342 aio_fsync $fh 377 aio_fsync $fh
343 and return; 378 and return;
344 379
345 close $fh 380 close $fh
346 or return; 381 or return;
352} 387}
353 388
354=back 389=back
355 390
356=cut 391=cut
357
358#############################################################################
359
360package cf::path;
361
362sub new {
363 my ($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;
477 392
478############################################################################# 393#############################################################################
479 394
480=head2 ATTACHABLE OBJECTS 395=head2 ATTACHABLE OBJECTS
481 396
607our @CB_TYPE = (); # registry for type (cf-object class) based events 522our @CB_TYPE = (); # registry for type (cf-object class) based events
608our @CB_MAP = (); 523our @CB_MAP = ();
609 524
610my %attachment; 525my %attachment;
611 526
527sub cf::attachable::thawer_merge {
528 # simply override everything except _meta
529 local $_[0]{_meta};
530 %{$_[0]} = %{$_[1]};
531}
532
612sub _attach_cb($$$$) { 533sub _attach_cb($$$$) {
613 my ($registry, $event, $prio, $cb) = @_; 534 my ($registry, $event, $prio, $cb) = @_;
614 535
615 use sort 'stable'; 536 use sort 'stable';
616 537
787# object support 708# object support
788 709
789sub reattach { 710sub reattach {
790 # basically do the same as instantiate, without calling instantiate 711 # basically do the same as instantiate, without calling instantiate
791 my ($obj) = @_; 712 my ($obj) = @_;
713
714 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792 715
793 my $registry = $obj->registry; 716 my $registry = $obj->registry;
794 717
795 @$registry = (); 718 @$registry = ();
796 719
843 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
844 767
845 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
847 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
849 close $fh; 772 close $fh;
850 773
851 if (@$objs) { 774 if (@$objs) {
852 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) {
853 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
854 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
855 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
856 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
857 close $fh; 780 close $fh;
858 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
859 } 782 }
860 } else { 783 } else {
861 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
928=cut 851=cut
929 852
930sub register_extcmd { 853sub register_extcmd {
931 my ($name, $cb) = @_; 854 my ($name, $cb) = @_;
932 855
933 my $caller = caller;
934 #warn "registering extcmd '$name' to '$caller'";
935
936 $EXTCMD{$name} = [$cb, $caller]; 856 $EXTCMD{$name} = $cb;
937} 857}
938 858
939cf::player->attach ( 859cf::player->attach (
940 on_command => sub { 860 on_command => sub {
941 my ($pl, $name, $params) = @_; 861 my ($pl, $name, $params) = @_;
954 874
955 my $msg = eval { from_json $buf }; 875 my $msg = eval { from_json $buf };
956 876
957 if (ref $msg) { 877 if (ref $msg) {
958 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 878 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959 if (my %reply = $cb->[0]->($pl, $msg)) { 879 if (my %reply = $cb->($pl, $msg)) {
960 $pl->ext_reply ($msg->{msgid}, %reply); 880 $pl->ext_reply ($msg->{msgid}, %reply);
961 } 881 }
962 } 882 }
963 } else { 883 } else {
964 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 884 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
966 886
967 cf::override; 887 cf::override;
968 }, 888 },
969); 889);
970 890
971sub register {
972 my ($base, $pkg) = @_;
973
974 #TODO
975}
976
977sub load_extension { 891sub load_extension {
978 my ($path) = @_; 892 my ($path) = @_;
979 893
980 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 894 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
981 my $base = $1; 895 my $base = $1;
982 my $pkg = $1; 896 my $pkg = $1;
983 $pkg =~ s/[^[:word:]]/_/g; 897 $pkg =~ s/[^[:word:]]/_/g;
984 $pkg = "ext::$pkg"; 898 $pkg = "ext::$pkg";
985 899
986 warn "loading '$path' into '$pkg'\n"; 900 warn "... loading '$path' into '$pkg'\n";
987 901
988 open my $fh, "<:utf8", $path 902 open my $fh, "<:utf8", $path
989 or die "$path: $!"; 903 or die "$path: $!";
990 904
991 my $source = 905 my $source =
992 "package $pkg; use strict; use utf8;\n" 906 "package $pkg; use strict; use utf8;\n"
993 . "#line 1 \"$path\"\n{\n" 907 . "#line 1 \"$path\"\n{\n"
994 . (do { local $/; <$fh> }) 908 . (do { local $/; <$fh> })
995 . "\n};\n1"; 909 . "\n};\n1";
996 910
997 eval $source 911 unless (eval $source) {
998 or die $@ ? "$path: $@\n" 912 my $msg = $@ ? "$path: $@\n"
999 : "extension disabled.\n"; 913 : "extension disabled.\n";
1000 914 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001 push @exts, $pkg; 915 warn $@;
1002 $ext_pkg{$base} = $pkg; 916 warn "mandatory extension failed to load, exiting.\n";
1003 917 exit 1;
1004# no strict 'refs'; 918 }
1005# @{"$pkg\::ISA"} = ext::; 919 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# } 920 }
1020 921
1021 # remove commands 922 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} 923}
1046 924
1047sub load_extensions { 925sub load_extensions {
1048 for my $ext (<$LIBDIR/*.ext>) { 926 for my $ext (<$LIBDIR/*.ext>) {
1049 next unless -r $ext; 927 next unless -r $ext;
1053 } or warn "$ext not loaded: $@"; 931 } or warn "$ext not loaded: $@";
1054 } 932 }
1055} 933}
1056 934
1057############################################################################# 935#############################################################################
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 936
1095=head2 CORE EXTENSIONS 937=head2 CORE EXTENSIONS
1096 938
1097Functions and methods that extend core crossfire objects. 939Functions and methods that extend core crossfire objects.
1098 940
941=cut
942
943package cf::player;
944
945use Coro::AIO;
946
1099=head3 cf::player 947=head3 cf::player
1100 948
1101=over 4 949=over 4
1102 950
1103=item cf::player::exists $login 951=item cf::player::find $login
1104 952
1105Returns true when the given account exists. 953Returns the given player object, loading it if necessary (might block).
1106 954
1107=cut 955=cut
1108 956
1109sub cf::player::exists($) { 957sub playerdir($) {
1110 cf::player::find $_[0] 958 cf::localdir
1111 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
1112} 1127}
1113 1128
1114=item $player->ext_reply ($msgid, $msgtype, %msg) 1129=item $player->ext_reply ($msgid, $msgtype, %msg)
1115 1130
1116Sends an ext reply to the player. 1131Sends an ext reply to the player.
1117 1132
1118=cut 1133=cut
1119 1134
1120sub cf::player::ext_reply($$$%) { 1135sub ext_reply($$$%) {
1121 my ($self, $id, %msg) = @_; 1136 my ($self, $id, %msg) = @_;
1122 1137
1123 $msg{msgid} = $id; 1138 $msg{msgid} = $id;
1124 1139
1125 $self->send ("ext " . to_json \%msg); 1140 $self->send ("ext " . cf::to_json \%msg);
1126} 1141}
1142
1143package cf;
1127 1144
1128=back 1145=back
1129 1146
1130 1147
1131=head3 cf::map 1148=head3 cf::map
1137package cf::map; 1154package cf::map;
1138 1155
1139use Fcntl; 1156use Fcntl;
1140use Coro::AIO; 1157use Coro::AIO;
1141 1158
1159use overload
1160 '""' => \&as_string,
1161 fallback => 1;
1162
1142our $MAX_RESET = 7200; 1163our $MAX_RESET = 3600;
1143our $DEFAULT_RESET = 3600; 1164our $DEFAULT_RESET = 3000;
1144 1165
1145sub generate_random_map { 1166sub generate_random_map {
1146 my ($path, $rmp) = @_; 1167 my ($self, $rmp) = @_;
1147
1148 # mit "rum" bekleckern, nicht 1168 # mit "rum" bekleckern, nicht
1149 cf::map::_create_random_map 1169 $self->_create_random_map (
1150 $path,
1151 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1170 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1171 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1172 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154 $rmp->{exit_on_final_map}, 1173 $rmp->{exit_on_final_map},
1155 $rmp->{xsize}, $rmp->{ysize}, 1174 $rmp->{xsize}, $rmp->{ysize},
1156 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1175 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1176 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1177 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159 $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},
1160 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1179 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161 (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
1162} 1311}
1163 1312
1164# and all this just because we cannot iterate over 1313# and all this just because we cannot iterate over
1165# all maps in C++... 1314# all maps in C++...
1166sub change_all_map_light { 1315sub change_all_map_light {
1168 1317
1169 $_->change_map_light ($change) 1318 $_->change_map_light ($change)
1170 for grep $_->outdoor, values %cf::MAP; 1319 for grep $_->outdoor, values %cf::MAP;
1171} 1320}
1172 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
1173sub try_load_header($) { 1330sub load_header_from($) {
1174 my ($path) = @_; 1331 my ($self, $path) = @_;
1175 1332
1176 utf8::encode $path; 1333 utf8::encode $path;
1177 aio_open $path, O_RDONLY, 0 1334 #aio_open $path, O_RDONLY, 0
1335 # or return;
1336
1337 $self->_load_header ($path)
1178 or return; 1338 or return;
1179 1339
1180 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
1181 or return; 1383 or return;
1384 $self->prepare_orig;
1385 }
1182 1386
1183 $map->load_header ($path) 1387 1
1184 or return;
1185
1186 $map->{load_path} = $path;
1187
1188 $map
1189} 1388}
1190 1389
1191sub find_map; 1390sub find;
1192sub find_map { 1391sub find {
1193 my ($path, $origin) = @_; 1392 my ($path, $origin) = @_;
1194 1393
1195 #warn "find_map<$path,$origin>\n";#d#
1196
1197 $path = new cf::path $path, $origin && $origin->path; 1394 $path = normalise $path, $origin && $origin->path;
1198 my $key = $path->as_string;
1199 1395
1200 cf::lock_wait "map_find:$key"; 1396 cf::lock_wait "map_find:$path";
1201 1397
1202 $cf::MAP{$key} || do { 1398 $cf::MAP{$path} || do {
1203 my $guard = cf::lock_acquire "map_find:$key"; 1399 my $guard = cf::lock_acquire "map_find:$path";
1204 1400 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; 1401 or return;
1220 1402
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; 1403 $map->{last_save} = $cf::RUNTIME;
1232 $map->last_access ($cf::RUNTIME);
1233 1404
1234 if ($map->should_reset) { 1405 $map->load_header
1406 or return;
1407
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;
1235 $map->reset; 1411 $map->reset;
1236 undef $guard; 1412 undef $guard;
1237 $map = find_map $path 1413 return find $path;
1238 or return;
1239 } 1414 }
1240 1415
1241 $cf::MAP{$key} = $map 1416 $cf::MAP{$path} = $map
1242 } 1417 }
1243} 1418}
1419
1420sub pre_load { }
1421sub post_load { }
1244 1422
1245sub load { 1423sub load {
1246 my ($self) = @_; 1424 my ($self) = @_;
1247 1425
1426 local $self->{deny_reset} = 1; # loading can take a long time
1427
1248 my $path = $self->{path}; 1428 my $path = $self->{path};
1249 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1429 my $guard = cf::lock_acquire "map_load:$path";
1250 1430
1251 return if $self->in_memory != cf::MAP_SWAPPED; 1431 return if $self->in_memory != cf::MAP_SWAPPED;
1252 1432
1253 $self->in_memory (cf::MAP_LOADING); 1433 $self->in_memory (cf::MAP_LOADING);
1254 1434
1255 $self->alloc; 1435 $self->alloc;
1436
1437 $self->pre_load;
1438
1256 $self->load_objects ($self->{load_path}, 1) 1439 $self->_load_objects ($self->{load_path}, 1)
1257 or return; 1440 or return;
1258 1441
1259 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1442 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260 if delete $self->{load_original}; 1443 if delete $self->{load_original};
1261 1444
1262 if (my $uniq = $path->uniq_path) { 1445 if (my $uniq = $self->uniq_path) {
1263 utf8::encode $uniq; 1446 utf8::encode $uniq;
1264 if (aio_open $uniq, O_RDONLY, 0) { 1447 if (aio_open $uniq, O_RDONLY, 0) {
1265 $self->clear_unique_items; 1448 $self->clear_unique_items;
1266 $self->load_objects ($uniq, 0); 1449 $self->_load_objects ($uniq, 0);
1267 } 1450 }
1268 } 1451 }
1452
1453 Coro::cede;
1269 1454
1270 # now do the right thing for maps 1455 # now do the right thing for maps
1271 $self->link_multipart_objects; 1456 $self->link_multipart_objects;
1272 1457
1273 if ($self->{path}->is_style_map) { 1458 unless ($self->{deny_activate}) {
1274 $self->{deny_save} = 1; 1459 $self->decay_objects;
1275 $self->{deny_reset} = 1;
1276 } else {
1277 $self->fix_auto_apply; 1460 $self->fix_auto_apply;
1278 $self->decay_objects;
1279 $self->update_buttons; 1461 $self->update_buttons;
1462 Coro::cede;
1280 $self->set_darkness_map; 1463 $self->set_darkness_map;
1281 $self->difficulty ($self->estimate_difficulty) 1464 $self->difficulty ($self->estimate_difficulty)
1282 unless $self->difficulty; 1465 unless $self->difficulty;
1466 Coro::cede;
1283 $self->activate; 1467 $self->activate;
1284 } 1468 }
1285 1469
1470 $self->post_load;
1471
1286 $self->in_memory (cf::MAP_IN_MEMORY); 1472 $self->in_memory (cf::MAP_IN_MEMORY);
1287} 1473}
1288 1474
1289sub load_map_sync { 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 }
1506}
1507
1508sub find_sync {
1290 my ($path, $origin) = @_; 1509 my ($path, $origin) = @_;
1291 1510
1292 #warn "load_map_sync<$path, $origin>\n";#d# 1511 cf::sync_job { find $path, $origin }
1512}
1293 1513
1294 cf::sync_job { 1514sub do_load_sync {
1295 my $map = cf::map::find_map $path, $origin 1515 my ($map) = @_;
1296 or return; 1516
1517 cf::sync_job { $map->load };
1518}
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;
1297 $map->load; 1538 $map->load;
1298 $map 1539
1540 delete $MAP_PREFETCH{$path};
1541 }
1542 }
1543 undef $MAP_PREFETCHER;
1299 } 1544 };
1545 $MAP_PREFETCHER->prio (6);
1546
1547 ()
1300} 1548}
1301 1549
1302sub save { 1550sub save {
1303 my ($self) = @_; 1551 my ($self) = @_;
1304 1552
1553 my $lock = cf::lock_acquire "map_data:" . $self->path;
1554
1305 $self->{last_save} = $cf::RUNTIME; 1555 $self->{last_save} = $cf::RUNTIME;
1306 1556
1307 return unless $self->dirty; 1557 return unless $self->dirty;
1308 1558
1309 my $save = $self->{path}->save_path; utf8::encode $save; 1559 my $save = $self->save_path; utf8::encode $save;
1310 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1560 my $uniq = $self->uniq_path; utf8::encode $uniq;
1311 1561
1312 $self->{load_path} = $save; 1562 $self->{load_path} = $save;
1313 1563
1314 return if $self->{deny_save}; 1564 return if $self->{deny_save};
1315 1565
1566 local $self->{last_access} = $self->last_access;#d#
1567
1568 cf::async {
1569 $_->contr->save for $self->players;
1570 };
1571
1316 if ($uniq) { 1572 if ($uniq) {
1317 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1573 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318 $self->save_objects ($uniq, cf::IO_UNIQUES); 1574 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1319 } else { 1575 } else {
1320 $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);
1321 } 1577 }
1322} 1578}
1323 1579
1324sub swap_out { 1580sub swap_out {
1325 my ($self) = @_; 1581 my ($self) = @_;
1326 1582
1327 # save first because save cedes 1583 # save first because save cedes
1328 $self->save; 1584 $self->save;
1585
1586 my $lock = cf::lock_acquire "map_data:" . $self->path;
1329 1587
1330 return if $self->players; 1588 return if $self->players;
1331 return if $self->in_memory != cf::MAP_IN_MEMORY; 1589 return if $self->in_memory != cf::MAP_IN_MEMORY;
1332 return if $self->{deny_save}; 1590 return if $self->{deny_save};
1333 1591
1337 1595
1338sub reset_at { 1596sub reset_at {
1339 my ($self) = @_; 1597 my ($self) = @_;
1340 1598
1341 # TODO: safety, remove and allow resettable per-player maps 1599 # TODO: safety, remove and allow resettable per-player maps
1342 return 1e99 if $self->{path}{user_rel}; 1600 return 1e99 if $self->isa ("ext::map_per_player");#d#
1343 return 1e99 if $self->{deny_reset}; 1601 return 1e99 if $self->{deny_reset};
1344 1602
1345 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1603 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346 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;
1347 1605
1352 my ($self) = @_; 1610 my ($self) = @_;
1353 1611
1354 $self->reset_at <= $cf::RUNTIME 1612 $self->reset_at <= $cf::RUNTIME
1355} 1613}
1356 1614
1357sub unlink_save {
1358 my ($self) = @_;
1359
1360 utf8::encode (my $save = $self->{path}->save_path);
1361 aioreq_pri 3; IO::AIO::aio_unlink $save;
1362 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363}
1364
1365sub rename {
1366 my ($self, $new_path) = @_;
1367
1368 $self->unlink_save;
1369
1370 delete $cf::MAP{$self->path};
1371 $self->{path} = new cf::path $new_path;
1372 $self->path ($self->{path}->as_string);
1373 $cf::MAP{$self->path} = $self;
1374
1375 $self->save;
1376}
1377
1378sub reset { 1615sub reset {
1379 my ($self) = @_; 1616 my ($self) = @_;
1380 1617
1618 my $lock = cf::lock_acquire "map_data:$self->{path}";
1619
1381 return if $self->players; 1620 return if $self->players;
1382 return if $self->{path}{user_rel};#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1383 1622
1384 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1385 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
1386 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1636
1637 $self->clear;
1387 1638
1388 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1389 1640
1390 $self->unlink_save; 1641 $self->unlink_save;
1391 $self->destroy; 1642 $self->destroy;
1394my $nuke_counter = "aaaa"; 1645my $nuke_counter = "aaaa";
1395 1646
1396sub nuke { 1647sub nuke {
1397 my ($self) = @_; 1648 my ($self) = @_;
1398 1649
1650 delete $cf::MAP{$self->path};
1651
1652 $self->unlink_save;
1653
1654 bless $self, "cf::map";
1655 delete $self->{deny_reset};
1399 $self->{deny_save} = 1; 1656 $self->{deny_save} = 1;
1400 $self->reset_timeout (1); 1657 $self->reset_timeout (1);
1401 $self->rename ("{nuke}/" . ($nuke_counter++)); 1658 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659
1660 $cf::MAP{$self->path} = $self;
1661
1402 $self->reset; # polite request, might not happen 1662 $self->reset; # polite request, might not happen
1403} 1663}
1404 1664
1405sub customise_for { 1665=item cf::map::unique_maps
1406 my ($map, $ob) = @_;
1407 1666
1408 if ($map->per_player) { 1667Returns an arrayref of paths of all shared maps that have
1409 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 1668instantiated unique items. May block.
1410 }
1411 1669
1412 $map 1670=cut
1413}
1414 1671
1415sub emergency_save { 1672sub unique_maps() {
1416 local $cf::FREEZE = 1; 1673 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1674 or return;
1417 1675
1418 warn "enter emergency map save\n"; 1676 my @paths;
1419 1677
1420 cf::sync_job { 1678 for (@$files) {
1421 warn "begin emergency map save\n"; 1679 utf8::decode $_;
1422 $_->save for values %cf::MAP; 1680 next if /\.pst$/;
1681 next unless /^$PATH_SEP/o;
1682
1683 push @paths, cf::map::normalise $_;
1423 }; 1684 }
1424 1685
1425 warn "end emergency map save\n"; 1686 \@paths
1426} 1687}
1427 1688
1428package cf; 1689package cf;
1429 1690
1430=back 1691=back
1431 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
1432 1719
1433=head3 cf::object::player 1720=head3 cf::object::player
1434 1721
1435=over 4 1722=over 4
1436 1723
1476 1763
1477=item $player_object->enter_link 1764=item $player_object->enter_link
1478 1765
1479Freezes 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}>).
1480 1767
1481The 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
1482I<MUST> call C<leave_link> as soon as possible, though. 1769I<MUST> call C<leave_link> as soon as possible, though.
1483 1770
1771Will never block.
1772
1484=item $player_object->leave_link ($map, $x, $y) 1773=item $player_object->leave_link ($map, $x, $y)
1485 1774
1486Moves 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
1487map 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
1488location 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
1489to the emergency map position. 1778fails, to the emergency map position.
1490 1779
1491Might block. 1780Might block.
1492 1781
1493=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}
1494 1793
1495sub cf::object::player::enter_link { 1794sub cf::object::player::enter_link {
1496 my ($self) = @_; 1795 my ($self) = @_;
1497 1796
1498 $self->deactivate_recursive; 1797 $self->deactivate_recursive;
1499 1798
1500 return if $self->map == $LINK_MAP; 1799 return if UNIVERSAL::isa $self->map, "ext::map_link";
1501 1800
1502 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1801 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503 if $self->map; 1802 if $self->map;
1504 1803
1505 $self->enter_map ($LINK_MAP, 20, 20); 1804 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1506} 1805}
1507 1806
1508sub cf::object::player::leave_link { 1807sub cf::object::player::leave_link {
1509 my ($self, $map, $x, $y) = @_; 1808 my ($self, $map, $x, $y) = @_;
1510 1809
1511 my $link_pos = delete $self->{_link_pos}; 1810 my $link_pos = delete $self->{_link_pos};
1512 1811
1513 unless ($map) { 1812 unless ($map) {
1514 # restore original map position 1813 # restore original map position
1515 ($map, $x, $y) = @{ $link_pos || [] }; 1814 ($map, $x, $y) = @{ $link_pos || [] };
1516 $map = cf::map::find_map $map; 1815 $map = cf::map::find $map;
1517 1816
1518 unless ($map) { 1817 unless ($map) {
1519 ($map, $x, $y) = @$EMERGENCY_POSITION; 1818 ($map, $x, $y) = @$EMERGENCY_POSITION;
1520 $map = cf::map::find_map $map 1819 $map = cf::map::find $map
1521 or die "FATAL: cannot load emergency map\n"; 1820 or die "FATAL: cannot load emergency map\n";
1522 } 1821 }
1523 } 1822 }
1524 1823
1525 ($x, $y) = (-1, -1) 1824 ($x, $y) = (-1, -1)
1528 # use -1 or undef as default coordinates, not 0, 0 1827 # use -1 or undef as default coordinates, not 0, 0
1529 ($x, $y) = ($map->enter_x, $map->enter_y) 1828 ($x, $y) = ($map->enter_x, $map->enter_y)
1530 if $x <=0 && $y <= 0; 1829 if $x <=0 && $y <= 0;
1531 1830
1532 $map->load; 1831 $map->load;
1832 $map->load_diag;
1533 1833
1834 return unless $self->contr->active;
1534 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1536} 1839}
1537 1840
1538cf::player->attach ( 1841cf::player->attach (
1539 on_logout => sub { 1842 on_logout => sub {
1551 1854
1552 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1553 # should happen only on crashes 1856 # should happen only on crashes
1554 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1555 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1556 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);
1557 # 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
1558 # 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
1559 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1560 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1561 }; 1868 })->prio (2);
1562 } 1869 }
1563 }, 1870 },
1564); 1871);
1565 1872
1566=item $player_object->goto_map ($path, $x, $y) 1873=item $player_object->goto ($path, $x, $y)
1567 1874
1568=cut 1875=cut
1569 1876
1570sub cf::object::player::goto_map { 1877sub cf::object::player::goto {
1571 my ($self, $path, $x, $y) = @_; 1878 my ($self, $path, $x, $y) = @_;
1572 1879
1573 $self->enter_link; 1880 $self->enter_link;
1574 1881
1575 (cf::async { 1882 (async {
1576 $path = new cf::path $path; 1883 my $map = eval {
1577
1578 my $map = cf::map::find_map $path->as_string; 1884 my $map = cf::map::find $path;
1579 $map = $map->customise_for ($self) if $map; 1885 $map = $map->customise_for ($self) if $map;
1580 1886 $map
1581# warn "entering ", $map->path, " at ($x, $y)\n" 1887 } or
1582# if $map;
1583
1584 $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);
1585 1889
1586 $self->leave_link ($map, $x, $y); 1890 $self->leave_link ($map, $x, $y);
1587 })->prio (1); 1891 })->prio (1);
1588} 1892}
1589 1893
1593 1897
1594sub parse_random_map_params { 1898sub parse_random_map_params {
1595 my ($spec) = @_; 1899 my ($spec) = @_;
1596 1900
1597 my $rmp = { # defaults 1901 my $rmp = { # defaults
1598 xsize => 10, 1902 xsize => (cf::rndm 15, 40),
1599 ysize => 10, 1903 ysize => (cf::rndm 15, 40),
1904 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1905 #layout => string,
1600 }; 1906 };
1601 1907
1602 for (split /\n/, $spec) { 1908 for (split /\n/, $spec) {
1603 my ($k, $v) = split /\s+/, $_, 2; 1909 my ($k, $v) = split /\s+/, $_, 2;
1604 1910
1608 $rmp 1914 $rmp
1609} 1915}
1610 1916
1611sub prepare_random_map { 1917sub prepare_random_map {
1612 my ($exit) = @_; 1918 my ($exit) = @_;
1919
1920 my $guard = cf::lock_acquire "exit_prepare:$exit";
1613 1921
1614 # all this does is basically replace the /! path by 1922 # all this does is basically replace the /! path by
1615 # a new random map path (?random/...) with a seed 1923 # a new random map path (?random/...) with a seed
1616 # that depends on the exit object 1924 # that depends on the exit object
1617 1925
1618 my $rmp = parse_random_map_params $exit->msg; 1926 my $rmp = parse_random_map_params $exit->msg;
1619 1927
1620 if ($exit->map) { 1928 if ($exit->map) {
1621 $rmp->{region} = $exit->map->region_name; 1929 $rmp->{region} = $exit->region->name;
1622 $rmp->{origin_map} = $exit->map->path; 1930 $rmp->{origin_map} = $exit->map->path;
1623 $rmp->{origin_x} = $exit->x; 1931 $rmp->{origin_x} = $exit->x;
1624 $rmp->{origin_y} = $exit->y; 1932 $rmp->{origin_y} = $exit->y;
1625 } 1933 }
1626 1934
1627 $rmp->{random_seed} ||= $exit->random_seed; 1935 $rmp->{random_seed} ||= $exit->random_seed;
1628 1936
1629 my $data = cf::to_json $rmp; 1937 my $data = cf::to_json $rmp;
1630 my $md5 = Digest::MD5::md5_hex $data; 1938 my $md5 = Digest::MD5::md5_hex $data;
1939 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1631 1940
1632 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) {
1633 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;
1634 1945
1635 $exit->slaying ("?random/$md5"); 1946 $exit->slaying ("?random/$md5");
1636 $exit->msg (undef); 1947 $exit->msg (undef);
1637 } 1948 }
1638} 1949}
1640sub cf::object::player::enter_exit { 1951sub cf::object::player::enter_exit {
1641 my ($self, $exit) = @_; 1952 my ($self, $exit) = @_;
1642 1953
1643 return unless $self->type == cf::PLAYER; 1954 return unless $self->type == cf::PLAYER;
1644 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
1645 $self->enter_link; 1965 $self->enter_link;
1646 1966
1647 (cf::async { 1967 (async {
1968 $self->deactivate_recursive; # just to be sure
1648 unless (eval { 1969 unless (eval {
1649 prepare_random_map $exit 1970 $self->goto ($slaying, $hp, $sp);
1650 if $exit->slaying eq "/!";
1651
1652 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654 1971
1655 1; 1972 1;
1656 }) { 1973 }) {
1657 $self->message ("Something went wrong deep within the crossfire server. " 1974 $self->message ("Something went wrong deep within the crossfire server. "
1658 . "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. "
1659 . "Please report this to the dungeon master", 1976 . "Please report this to the dungeon master!",
1660 cf::NDI_UNIQUE | cf::NDI_RED); 1977 cf::NDI_UNIQUE | cf::NDI_RED);
1661 1978
1662 warn "ERROR in enter_exit: $@"; 1979 warn "ERROR in enter_exit: $@";
1663 $self->leave_link; 1980 $self->leave_link;
1664 } 1981 }
1719 # get handled first 2036 # get handled first
1720 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
1721 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
1722 2039
1723 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724 2042
1725 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
1726 2044
1727 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
1728 if (@$queue) { 2046 if (@$queue) {
1732 } 2050 }
1733 } 2051 }
1734 }, 2052 },
1735); 2053);
1736 2054
1737=item $client->coro (\&cb) 2055=item $client->async (\&cb)
1738 2056
1739Create a new coroutine, running the specified callback. The coroutine will 2057Create a new coroutine, running the specified callback. The coroutine will
1740be automatically cancelled when the client gets destroyed (e.g. on logout, 2058be automatically cancelled when the client gets destroyed (e.g. on logout,
1741or loss of connection). 2059or loss of connection).
1742 2060
1743=cut 2061=cut
1744 2062
1745sub cf::client::coro { 2063sub cf::client::async {
1746 my ($self, $cb) = @_; 2064 my ($self, $cb) = @_;
1747 2065
1748 my $coro = &cf::async ($cb); 2066 my $coro = &Coro::async ($cb);
1749 2067
1750 $coro->on_destroy (sub { 2068 $coro->on_destroy (sub {
1751 delete $self->{_coro}{$coro+0}; 2069 delete $self->{_coro}{$coro+0};
1752 }); 2070 });
1753 2071
1889The 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
1890using it, it should be unique. 2208using it, it should be unique.
1891 2209
1892=over 4 2210=over 4
1893 2211
1894=item $hashref = cf::db_get $family
1895
1896Return a hashref for use by the extension C<$family>, which can be
1897modified. After modifications, you have to call C<cf::db_dirty> or
1898C<cf::db_sync>.
1899
1900=item $value = cf::db_get $family => $key 2212=item $value = cf::db_get $family => $key
1901 2213
1902Returns a single value from the database 2214Returns a single value from the database.
1903
1904=item cf::db_put $family => $hashref
1905
1906Stores the given family hashref into the database. Updates are delayed, if
1907you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908 2215
1909=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
1910 2217
1911Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores the given C<$value> in the family.
1912want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914=item cf::db_dirty
1915
1916Marks the database as dirty, to be updated at a later time.
1917
1918=item cf::db_sync
1919
1920Immediately write the database to disk I<if it is dirty>.
1921 2219
1922=cut 2220=cut
1923 2221
1924our $DB; 2222our $DB;
1925 2223
1926{ 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
1927 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;
1928 2243
1929 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
1930 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
1931 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
1932 2248
1933 my $pid; 2249 unlink $path;
1934
1935 sub db_save() {
1936 waitpid $pid, 0 if $pid;
1937 if (0 == ($pid = fork)) {
1938 $DB->{_meta}{version} = 1;
1939 Storable::nstore $DB, "$path~";
1940 rename "$path~", $path;
1941 cf::_exit 0 if defined $pid;
1942 } 2250 };
1943 }
1944
1945 my $dirty;
1946
1947 sub db_sync() {
1948 db_save if $dirty;
1949 undef $dirty;
1950 }
1951
1952 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953 db_sync;
1954 });
1955
1956 sub db_dirty() {
1957 $dirty = 1;
1958 $idle->start;
1959 }
1960
1961 sub db_get($;$) {
1962 @_ >= 2
1963 ? $DB->{$_[0]}{$_[1]}
1964 : ($DB->{$_[0]} ||= { })
1965 }
1966
1967 sub db_put($$;$) {
1968 if (@_ >= 3) {
1969 $DB->{$_[0]}{$_[1]} = $_[2];
1970 } else {
1971 $DB->{$_[0]} = $_[1];
1972 }
1973 db_dirty;
1974 }
1975
1976 cf::global->attach (
1977 prio => 10000,
1978 on_cleanup => sub {
1979 db_sync;
1980 }, 2251 }
1981 ); 2252 }
2253}
2254
2255sub db_get($$) {
2256 my $key = "$_[0]/$_[1]";
2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
2266sub db_put($$$) {
2267 BDB::dbreq_pri 4;
2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1982} 2269}
1983 2270
1984############################################################################# 2271#############################################################################
1985# the server's main() 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 $faces;
2285 Coro::cede;
2286
2287 while (my ($face, $info) = each %$faces) {
2288 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2289 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2290 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2291 Coro::cede;
2292 }
2293
2294 1
2295}
2296
2297sub reload_resources {
2298 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2299 or die "unable to load regions file\n";#d#
2300 load_faces
2301 or die "unable to load faces\n";#d#
2302}
2303
2304sub init {
2305 reload_resources;
2306}
1986 2307
1987sub cfg_load { 2308sub cfg_load {
1988 open my $fh, "<:utf8", cf::confdir . "/config" 2309 open my $fh, "<:utf8", cf::confdir . "/config"
1989 or return; 2310 or return;
1990 2311
1991 local $/; 2312 local $/;
1992 *CFG = YAML::Syck::Load <$fh>; 2313 *CFG = YAML::Syck::Load <$fh>;
2314
2315 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2316
2317 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2318 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2319
2320 if (exists $CFG{mlockall}) {
2321 eval {
2322 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2323 and die "WARNING: m(un)lockall failed: $!\n";
2324 };
2325 warn $@ if $@;
2326 }
1993} 2327}
1994 2328
1995sub main { 2329sub main {
1996 # we must not ever block the main coroutine 2330 # we must not ever block the main coroutine
1997 local $Coro::idle = sub { 2331 local $Coro::idle = sub {
1998 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2332 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999 (Coro::unblock_sub { 2333 (async {
2000 Event::one_event; 2334 Event::one_event;
2001 })->(); 2335 })->prio (Coro::PRIO_MAX);
2002 }; 2336 };
2003 2337
2004 cfg_load; 2338 cfg_load;
2005 db_load; 2339 db_init;
2006 load_extensions; 2340 load_extensions;
2341
2342 $TICK_WATCHER->start;
2007 Event::loop; 2343 Event::loop;
2008} 2344}
2009 2345
2010############################################################################# 2346#############################################################################
2011# initialisation 2347# initialisation and cleanup
2348
2349# install some emergency cleanup handlers
2350BEGIN {
2351 for my $signal (qw(INT HUP TERM)) {
2352 Event->signal (
2353 reentrant => 0,
2354 data => WF_AUTOCANCEL,
2355 signal => $signal,
2356 prio => 0,
2357 cb => sub {
2358 cf::cleanup "SIG$signal";
2359 },
2360 );
2361 }
2362}
2363
2364sub emergency_save() {
2365 my $freeze_guard = cf::freeze_mainloop;
2366
2367 warn "enter emergency perl save\n";
2368
2369 cf::sync_job {
2370 # use a peculiar iteration method to avoid tripping on perl
2371 # refcount bugs in for. also avoids problems with players
2372 # and maps saved/destroyed asynchronously.
2373 warn "begin emergency player save\n";
2374 for my $login (keys %cf::PLAYER) {
2375 my $pl = $cf::PLAYER{$login} or next;
2376 $pl->valid or next;
2377 $pl->save;
2378 }
2379 warn "end emergency player save\n";
2380
2381 warn "begin emergency map save\n";
2382 for my $path (keys %cf::MAP) {
2383 my $map = $cf::MAP{$path} or next;
2384 $map->valid or next;
2385 $map->save;
2386 }
2387 warn "end emergency map save\n";
2388
2389 warn "begin emergency database checkpoint\n";
2390 BDB::db_env_txn_checkpoint $DB_ENV;
2391 warn "end emergency database checkpoint\n";
2392 };
2393
2394 warn "leave emergency perl save\n";
2395}
2396
2397sub post_cleanup {
2398 my ($make_core) = @_;
2399
2400 warn Carp::longmess "post_cleanup backtrace"
2401 if $make_core;
2402}
2012 2403
2013sub reload() { 2404sub reload() {
2014 # can/must only be called in main 2405 # can/must only be called in main
2015 if ($Coro::current != $Coro::main) { 2406 if ($Coro::current != $Coro::main) {
2016 warn "can only reload from main coroutine\n"; 2407 warn "can only reload from main coroutine";
2017 return; 2408 return;
2018 } 2409 }
2019 2410
2020 warn "reloading..."; 2411 warn "reloading...";
2021 2412
2022 local $FREEZE = 1; 2413 warn "entering sync_job";
2414
2415 cf::sync_job {
2416 cf::write_runtime; # external watchdog should not bark
2023 cf::emergency_save; 2417 cf::emergency_save;
2418 cf::write_runtime; # external watchdog should not bark
2024 2419
2025 eval { 2420 warn "syncing database to disk";
2421 BDB::db_env_txn_checkpoint $DB_ENV;
2422
2026 # if anything goes wrong in here, we should simply crash as we already saved 2423 # if anything goes wrong in here, we should simply crash as we already saved
2027 2424
2028 # cancel all watchers 2425 warn "cancelling all WF_AUTOCANCEL watchers";
2029 for (Event::all_watchers) { 2426 for (Event::all_watchers) {
2030 $_->cancel if $_->data & WF_AUTOCANCEL; 2427 $_->cancel if $_->data & WF_AUTOCANCEL;
2031 } 2428 }
2032 2429
2430 warn "flushing outstanding aio requests";
2431 for (;;) {
2432 BDB::flush;
2433 IO::AIO::flush;
2434 Coro::cede;
2435 last unless IO::AIO::nreqs || BDB::nreqs;
2436 warn "iterate...";
2437 }
2438
2439 ++$RELOAD;
2440
2033 # cancel all extension coros 2441 warn "cancelling all extension coros";
2034 $_->cancel for values %EXT_CORO; 2442 $_->cancel for values %EXT_CORO;
2035 %EXT_CORO = (); 2443 %EXT_CORO = ();
2036 2444
2037 # unload all extensions 2445 warn "removing commands";
2038 for (@exts) { 2446 %COMMAND = ();
2447
2448 warn "removing ext commands";
2449 %EXTCMD = ();
2450
2451 warn "unloading/nuking all extensions";
2452 for my $pkg (@EXTS) {
2039 warn "unloading <$_>"; 2453 warn "... unloading $pkg";
2040 unload_extension $_; 2454
2455 if (my $cb = $pkg->can ("unload")) {
2456 eval {
2457 $cb->($pkg);
2458 1
2459 } or warn "$pkg unloaded, but with errors: $@";
2041 } 2460 }
2042 2461
2462 warn "... nuking $pkg";
2463 Symbol::delete_package $pkg;
2464 }
2465
2043 # unload all modules loaded from $LIBDIR 2466 warn "unloading all perl modules loaded from $LIBDIR";
2044 while (my ($k, $v) = each %INC) { 2467 while (my ($k, $v) = each %INC) {
2045 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2468 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046 2469
2047 warn "removing <$k>"; 2470 warn "... unloading $k";
2048 delete $INC{$k}; 2471 delete $INC{$k};
2049 2472
2050 $k =~ s/\.pm$//; 2473 $k =~ s/\.pm$//;
2051 $k =~ s/\//::/g; 2474 $k =~ s/\//::/g;
2052 2475
2055 } 2478 }
2056 2479
2057 Symbol::delete_package $k; 2480 Symbol::delete_package $k;
2058 } 2481 }
2059 2482
2060 # sync database to disk
2061 cf::db_sync;
2062 IO::AIO::flush;
2063
2064 # get rid of safe::, as good as possible 2483 warn "getting rid of safe::, as good as possible";
2065 Symbol::delete_package "safe::$_" 2484 Symbol::delete_package "safe::$_"
2066 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2485 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067 2486
2068 # remove register_script_function callbacks
2069 # TODO
2070
2071 # unload cf.pm "a bit" 2487 warn "unloading cf.pm \"a bit\"";
2072 delete $INC{"cf.pm"}; 2488 delete $INC{"cf.pm"};
2073 2489
2074 # don't, removes xs symbols, too, 2490 # don't, removes xs symbols, too,
2075 # and global variables created in xs 2491 # and global variables created in xs
2076 #Symbol::delete_package __PACKAGE__; 2492 #Symbol::delete_package __PACKAGE__;
2077 2493
2078 # reload cf.pm 2494 warn "unload completed, starting to reload now";
2495
2079 warn "reloading cf.pm"; 2496 warn "reloading cf.pm";
2080 require cf; 2497 require cf;
2081 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2498 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082 2499
2083 # load config and database again 2500 warn "loading config and database again";
2084 cf::cfg_load; 2501 cf::cfg_load;
2085 cf::db_load;
2086 2502
2087 # load extensions
2088 warn "load extensions"; 2503 warn "loading extensions";
2089 cf::load_extensions; 2504 cf::load_extensions;
2090 2505
2091 # reattach attachments to objects 2506 warn "reattaching attachments to objects/players";
2092 warn "reattach"; 2507 _global_reattach; # objects, sockets
2093 _global_reattach; 2508 warn "reattaching attachments to maps";
2094 }; 2509 reattach $_ for values %MAP;
2510 warn "reattaching attachments to players";
2511 reattach $_ for values %PLAYER;
2095 2512
2096 if ($@) { 2513 warn "loading reloadable resources";
2514 reload_resources;
2515
2516 warn "leaving sync_job";
2517
2518 1
2519 } or do {
2097 warn $@; 2520 warn $@;
2098 warn "error while reloading, exiting."; 2521 warn "error while reloading, exiting.";
2099 exit 1; 2522 exit 1;
2100 } 2523 };
2101 2524
2102 warn "reloaded successfully"; 2525 warn "reloaded";
2103}; 2526};
2104 2527
2105############################################################################# 2528our $RELOAD_WATCHER; # used only during reload
2106
2107unless ($LINK_MAP) {
2108 $LINK_MAP = cf::map::new;
2109
2110 $LINK_MAP->width (41);
2111 $LINK_MAP->height (41);
2112 $LINK_MAP->alloc;
2113 $LINK_MAP->path ("{link}");
2114 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117 # dirty hack because... archetypes are not yet loaded
2118 Event->timer (
2119 after => 2,
2120 cb => sub {
2121 $_[0]->w->cancel;
2122
2123 # provide some exits "home"
2124 my $exit = cf::object::new "exit";
2125
2126 $exit->slaying ($EMERGENCY_POSITION->[0]);
2127 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130 $LINK_MAP->insert ($exit->clone, 19, 19);
2131 $LINK_MAP->insert ($exit->clone, 19, 20);
2132 $LINK_MAP->insert ($exit->clone, 19, 21);
2133 $LINK_MAP->insert ($exit->clone, 20, 19);
2134 $LINK_MAP->insert ($exit->clone, 20, 21);
2135 $LINK_MAP->insert ($exit->clone, 21, 19);
2136 $LINK_MAP->insert ($exit->clone, 21, 20);
2137 $LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139 $exit->destroy;
2140 });
2141
2142 $LINK_MAP->{deny_save} = 1;
2143 $LINK_MAP->{deny_reset} = 1;
2144
2145 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146}
2147
2148register "<global>", __PACKAGE__;
2149 2529
2150register_command "reload" => sub { 2530register_command "reload" => sub {
2151 my ($who, $arg) = @_; 2531 my ($who, $arg) = @_;
2152 2532
2153 if ($who->flag (FLAG_WIZ)) { 2533 if ($who->flag (FLAG_WIZ)) {
2154 $who->message ("start of reload."); 2534 $who->message ("reloading server.");
2535
2536 # doing reload synchronously and two reloads happen back-to-back,
2537 # coro crashes during coro_state_free->destroy here.
2538
2539 $RELOAD_WATCHER ||= Event->timer (
2540 reentrant => 0,
2541 after => 0,
2542 data => WF_AUTOCANCEL,
2543 cb => sub {
2155 reload; 2544 reload;
2156 $who->message ("end of reload."); 2545 undef $RELOAD_WATCHER;
2546 },
2547 );
2157 } 2548 }
2158}; 2549};
2159 2550
2160unshift @INC, $LIBDIR; 2551unshift @INC, $LIBDIR;
2552
2553my $bug_warning = 0;
2161 2554
2162$TICK_WATCHER = Event->timer ( 2555$TICK_WATCHER = Event->timer (
2163 reentrant => 0, 2556 reentrant => 0,
2557 parked => 1,
2164 prio => 0, 2558 prio => 0,
2165 at => $NEXT_TICK || $TICK, 2559 at => $NEXT_TICK || $TICK,
2166 data => WF_AUTOCANCEL, 2560 data => WF_AUTOCANCEL,
2167 cb => sub { 2561 cb => sub {
2168 unless ($FREEZE) { 2562 if ($Coro::current != $Coro::main) {
2563 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2564 unless ++$bug_warning > 10;
2565 return;
2566 }
2567
2568 $NOW = Event::time;
2569
2169 cf::server_tick; # one server iteration 2570 cf::server_tick; # one server iteration
2170 $RUNTIME += $TICK; 2571 $RUNTIME += $TICK;
2171 }
2172
2173 $NEXT_TICK += $TICK; 2572 $NEXT_TICK += $TICK;
2573
2574 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2575 $NEXT_RUNTIME_WRITE = $NOW + 10;
2576 Coro::async_pool {
2577 write_runtime
2578 or warn "ERROR: unable to write runtime file: $!";
2579 };
2580 }
2581
2582 $WAIT_FOR_TICK->broadcast;
2583 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2584
2585# my $AFTER = Event::time;
2586# warn $AFTER - $NOW;#d#
2174 2587
2175 # if we are delayed by four ticks or more, skip them all 2588 # if we are delayed by four ticks or more, skip them all
2176 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2589 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2177 2590
2178 $TICK_WATCHER->at ($NEXT_TICK); 2591 $TICK_WATCHER->at ($NEXT_TICK);
2179 $TICK_WATCHER->start; 2592 $TICK_WATCHER->start;
2180 }, 2593 },
2181); 2594);
2182 2595
2596{
2183IO::AIO::max_poll_time $TICK * 0.2; 2597 BDB::max_poll_time $TICK * 0.1;
2184 2598 $BDB_POLL_WATCHER = Event->io (
2185Event->io ( 2599 reentrant => 0,
2186 fd => IO::AIO::poll_fileno, 2600 fd => BDB::poll_fileno,
2187 poll => 'r', 2601 poll => 'r',
2188 prio => 5, 2602 prio => 0,
2189 data => WF_AUTOCANCEL,
2190 cb => \&IO::AIO::poll_cb,
2191);
2192
2193Event->timer (
2194 data => WF_AUTOCANCEL, 2603 data => WF_AUTOCANCEL,
2195 after => 0, 2604 cb => \&BDB::poll_cb,
2196 interval => 10, 2605 );
2197 cb => sub { 2606 BDB::min_parallel 8;
2198 (Coro::unblock_sub { 2607
2199 write_runtime 2608 BDB::set_sync_prepare {
2200 or warn "ERROR: unable to write runtime file: $!"; 2609 my $status;
2610 my $current = $Coro::current;
2611 (
2612 sub {
2613 $status = $!;
2614 $current->ready; undef $current;
2615 },
2616 sub {
2617 Coro::schedule while defined $current;
2618 $! = $status;
2619 },
2620 )
2621 };
2622
2623 unless ($DB_ENV) {
2624 $DB_ENV = BDB::db_env_create;
2625
2626 cf::sync_job {
2627 eval {
2628 BDB::db_env_open
2629 $DB_ENV,
2630 $BDB_ENV_DIR,
2631 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2632 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2633 0666;
2634
2635 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2636
2637 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2638 $DB_ENV->set_lk_detect;
2639 };
2640
2641 cf::cleanup "db_env_open(db): $@" if $@;
2201 })->(); 2642 };
2202 }, 2643 }
2203); 2644}
2645
2646{
2647 IO::AIO::min_parallel 8;
2648
2649 undef $Coro::AIO::WATCHER;
2650 IO::AIO::max_poll_time $TICK * 0.1;
2651 $AIO_POLL_WATCHER = Event->io (
2652 reentrant => 0,
2653 data => WF_AUTOCANCEL,
2654 fd => IO::AIO::poll_fileno,
2655 poll => 'r',
2656 prio => 6,
2657 cb => \&IO::AIO::poll_cb,
2658 );
2659}
2204 2660
2205END { cf::emergency_save } 2661END { cf::emergency_save }
2206 2662
22071 26631
2208 2664

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines