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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.260 by root, Fri Apr 27 19:53:05 2007 UTC vs.
Revision 1.352 by root, Sun Sep 2 04:57:14 2007 UTC

10use Event; 10use Event;
11use Opcode; 11use Opcode;
12use Safe; 12use Safe;
13use Safe::Hole; 13use Safe::Hole;
14 14
15use Coro 3.61 (); 15use Coro 3.64 ();
16use Coro::State; 16use Coro::State;
17use Coro::Handle; 17use Coro::Handle;
18use Coro::Event; 18use Coro::Event;
19use Coro::Timer; 19use Coro::Timer;
20use Coro::Signal; 20use Coro::Signal;
21use Coro::Semaphore; 21use Coro::Semaphore;
22use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable; 23use Coro::Storable;
24use Coro::Util ();
24 25
26use JSON::XS ();
25use BDB (); 27use BDB ();
26use Data::Dumper; 28use Data::Dumper;
27use Digest::MD5; 29use Digest::MD5;
28use Fcntl; 30use Fcntl;
29use YAML::Syck (); 31use YAML::Syck ();
30use IO::AIO 2.32 (); 32use IO::AIO 2.32 ();
31use Time::HiRes; 33use Time::HiRes;
32use Compress::LZF; 34use Compress::LZF;
35use Digest::MD5 ();
33 36
34# configure various modules to our taste 37# configure various modules to our taste
35# 38#
36$Storable::canonical = 1; # reduce rsync transfers 39$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 40Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
49our %COMMAND = (); 52our %COMMAND = ();
50our %COMMAND_TIME = (); 53our %COMMAND_TIME = ();
51 54
52our @EXTS = (); # list of extension package names 55our @EXTS = (); # list of extension package names
53our %EXTCMD = (); 56our %EXTCMD = ();
57our %EXTICMD = ();
54our %EXT_CORO = (); # coroutines bound to extensions 58our %EXT_CORO = (); # coroutines bound to extensions
55our %EXT_MAP = (); # pluggable maps 59our %EXT_MAP = (); # pluggable maps
56 60
57our $RELOAD; # number of reloads so far 61our $RELOAD; # number of reloads so far
58our @EVENT; 62our @EVENT;
90our $LINK_MAP; # the special {link} map, which is always available 94our $LINK_MAP; # the special {link} map, which is always available
91 95
92# used to convert map paths into valid unix filenames by replacing / by ∕ 96# used to convert map paths into valid unix filenames by replacing / by ∕
93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 97our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94 98
99our $LOAD; # a number between 0 (idle) and 1 (too many objects)
100our $LOADAVG; # same thing, but with alpha-smoothing
101our $tick_start; # for load detecting purposes
102
95binmode STDOUT; 103binmode STDOUT;
96binmode STDERR; 104binmode STDERR;
97 105
98# read virtual server time, if available 106# read virtual server time, if available
99unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 107unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
139 147
140=item $cf::TICK 148=item $cf::TICK
141 149
142The interval between server ticks, in seconds. 150The interval between server ticks, in seconds.
143 151
152=item $cf::LOADAVG
153
154The current CPU load on the server (alpha-smoothed), as a value between 0
155(none) and 1 (overloaded), indicating how much time is spent on processing
156objects per tick. Healthy values are < 0.5.
157
158=item $cf::LOAD
159
160The raw value load value from the last tick.
161
144=item %cf::CFG 162=item %cf::CFG
145 163
146Configuration for the server, loaded from C</etc/crossfire/config>, or 164Configuration for the server, loaded from C</etc/crossfire/config>, or
147from wherever your confdir points to. 165from wherever your confdir points to.
148 166
149=item cf::wait_for_tick, cf::wait_for_tick_begin 167=item cf::wait_for_tick, cf::wait_for_tick_begin
150 168
151These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only 169These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152returns directly I<after> the tick processing (and consequently, can only wake one process 170returns directly I<after> the tick processing (and consequently, can only wake one process
153per tick), while cf::wait_for_tick wakes up all waiters after tick processing. 171per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
172
173=item @cf::INVOKE_RESULTS
174
175This array contains the results of the last C<invoke ()> call. When
176C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
177that call.
154 178
155=back 179=back
156 180
157=cut 181=cut
158 182
173@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 197@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 198@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 199@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 200@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 201@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
202@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 203@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179 204
180# we bless all objects into (empty) derived classes to force a method lookup 205# we bless all objects into (empty) derived classes to force a method lookup
181# within the Safe compartment. 206# within the Safe compartment.
182for my $pkg (qw( 207for my $pkg (qw(
183 cf::global cf::attachable 208 cf::global cf::attachable
191} 216}
192 217
193$Event::DIED = sub { 218$Event::DIED = sub {
194 warn "error in event callback: @_"; 219 warn "error in event callback: @_";
195}; 220};
221
222#############################################################################
196 223
197=head2 UTILITY FUNCTIONS 224=head2 UTILITY FUNCTIONS
198 225
199=over 4 226=over 4
200 227
219 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 246 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220 $d 247 $d
221 } || "[unable to dump $_[0]: '$@']"; 248 } || "[unable to dump $_[0]: '$@']";
222} 249}
223 250
224use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226=item $ref = cf::from_json $json 251=item $ref = cf::from_json $json
227 252
228Converts a JSON string into the corresponding perl data structure. 253Converts a JSON string into the corresponding perl data structure.
229 254
230=item $json = cf::to_json $ref 255=item $json = cf::to_json $ref
231 256
232Converts a perl data structure into its JSON representation. 257Converts a perl data structure into its JSON representation.
258
259=cut
260
261our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
262
263sub to_json ($) { $json_coder->encode ($_[0]) }
264sub from_json ($) { $json_coder->decode ($_[0]) }
233 265
234=item cf::lock_wait $string 266=item cf::lock_wait $string
235 267
236Wait until the given lock is available. See cf::lock_acquire. 268Wait until the given lock is available. See cf::lock_acquire.
237 269
239 271
240Wait until the given lock is available and then acquires it and returns 272Wait until the given lock is available and then acquires it and returns
241a Coro::guard object. If the guard object gets destroyed (goes out of scope, 273a Coro::guard object. If the guard object gets destroyed (goes out of scope,
242for example when the coroutine gets canceled), the lock is automatically 274for example when the coroutine gets canceled), the lock is automatically
243returned. 275returned.
276
277Locks are *not* recursive, locking from the same coro twice results in a
278deadlocked coro.
244 279
245Lock names should begin with a unique identifier (for example, cf::map::find 280Lock names should begin with a unique identifier (for example, cf::map::find
246uses map_find and cf::map::load uses map_load). 281uses map_find and cf::map::load uses map_load).
247 282
248=item $locked = cf::lock_active $string 283=item $locked = cf::lock_active $string
291 }; 326 };
292 $TICK_WATCHER->stop; 327 $TICK_WATCHER->stop;
293 $guard 328 $guard
294} 329}
295 330
331=item cf::get_slot $time[, $priority[, $name]]
332
333Allocate $time seconds of blocking CPU time at priority C<$priority>:
334This call blocks and returns only when you have at least C<$time> seconds
335of cpu time till the next tick. The slot is only valid till the next cede.
336
337The optional C<$name> can be used to identify the job to run. It might be
338used for statistical purposes and should identify the same time-class.
339
340Useful for short background jobs.
341
342=cut
343
344our @SLOT_QUEUE;
345our $SLOT_QUEUE;
346
347$SLOT_QUEUE->cancel if $SLOT_QUEUE;
348$SLOT_QUEUE = Coro::async {
349 my $signal = new Coro::Signal;
350
351 while () {
352 next_job:
353 my $avail = cf::till_tick;
354 if ($avail > 0.01) {
355 for (0 .. $#SLOT_QUEUE) {
356 if ($SLOT_QUEUE[$_][0] < $avail) {
357 my $job = splice @SLOT_QUEUE, $_, 1, ();
358 $job->[2]->send;
359 Coro::cede;
360 goto next_job;
361 }
362 }
363 }
364
365 if (@SLOT_QUEUE) {
366 # we do not use wait_For_tick() as it returns immediately when tick is inactive
367 push @cf::WAIT_FOR_TICK, $signal;
368 $signal->wait;
369 } else {
370 Coro::schedule;
371 }
372 }
373};
374
375sub get_slot($;$$) {
376 my ($time, $pri, $name) = @_;
377
378 $time = $TICK * .6 if $time > $TICK * .6;
379 my $sig = new Coro::Signal;
380
381 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
382 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
383 $SLOT_QUEUE->ready;
384 $sig->wait;
385}
386
296=item cf::async { BLOCK } 387=item cf::async { BLOCK }
297 388
298Currently the same as Coro::async_pool, meaning you cannot use 389Currently the same as Coro::async_pool, meaning you cannot use
299C<on_destroy>, C<join> or other gimmicks on these coroutines. The only 390C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
300thing you are allowed to do is call C<prio> on it. 391thing you are allowed to do is call C<prio> on it.
303 394
304BEGIN { *async = \&Coro::async_pool } 395BEGIN { *async = \&Coro::async_pool }
305 396
306=item cf::sync_job { BLOCK } 397=item cf::sync_job { BLOCK }
307 398
308The design of crossfire+ requires that the main coro ($Coro::main) is 399The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309always able to handle events or runnable, as crossfire+ is only partly 400is always able to handle events or runnable, as Crossfire TRT is only
310reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 401partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
402acceptable.
311 403
312If it must be done, put the blocking parts into C<sync_job>. This will run 404If it must be done, put the blocking parts into C<sync_job>. This will run
313the given BLOCK in another coroutine while waiting for the result. The 405the given BLOCK in another coroutine while waiting for the result. The
314server will be frozen during this time, so the block should either finish 406server will be frozen during this time, so the block should either finish
315fast or be very important. 407fast or be very important.
318 410
319sub sync_job(&) { 411sub sync_job(&) {
320 my ($job) = @_; 412 my ($job) = @_;
321 413
322 if ($Coro::current == $Coro::main) { 414 if ($Coro::current == $Coro::main) {
415 my $time = Event::time;
416
323 # this is the main coro, too bad, we have to block 417 # this is the main coro, too bad, we have to block
324 # till the operation succeeds, freezing the server :/ 418 # till the operation succeeds, freezing the server :/
325 419
326 # TODO: use suspend/resume instead 420 # TODO: use suspend/resume instead
327 # (but this is cancel-safe) 421 # (but this is cancel-safe)
338 432
339 while ($busy) { 433 while ($busy) {
340 Coro::cede or Event::one_event; 434 Coro::cede or Event::one_event;
341 } 435 }
342 436
437 $time = Event::time - $time;
438
439 LOG llevError | logBacktrace, Carp::longmess "long sync job"
440 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
441
442 $tick_start += $time; # do not account sync jobs to server load
443
343 wantarray ? @res : $res[0] 444 wantarray ? @res : $res[0]
344 } else { 445 } else {
345 # we are in another coroutine, how wonderful, everything just works 446 # we are in another coroutine, how wonderful, everything just works
346 447
347 $job->() 448 $job->()
366 $EXT_CORO{$coro+0} = $coro; 467 $EXT_CORO{$coro+0} = $coro;
367 468
368 $coro 469 $coro
369} 470}
370 471
371sub write_runtime { 472=item fork_call { }, $args
372 my $guard = cf::lock_acquire "write_runtime";
373 473
374 my $runtime = "$LOCALDIR/runtime"; 474Executes the given code block with the given arguments in a seperate
475process, returning the results. Everything must be serialisable with
476Coro::Storable. May, of course, block. Note that the executed sub may
477never block itself or use any form of Event handling.
375 478
376 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 479=cut
377 or return;
378 480
379 my $value = $cf::RUNTIME + 90 + 10; 481sub fork_call(&@) {
380 # 10 is the runtime save interval, for a monotonic clock 482 my ($cb, @args) = @_;
381 # 60 allows for the watchdog to kill the server.
382 483
383 (aio_write $fh, 0, (length $value), $value, 0) <= 0 484 # we seemingly have to make a local copy of the whole thing,
384 and return; 485 # otherwise perl prematurely frees the stuff :/
486 # TODO: investigate and fix (liekly this will be rather laborious)
385 487
386 # always fsync - this file is important 488 my @res = Coro::Util::fork_eval {
387 aio_fsync $fh 489 reset_signals;
388 and return; 490 &$cb
491 }, @args;
389 492
390 close $fh 493 wantarray ? @res : $res[-1]
391 or return; 494}
392 495
393 aio_rename "$runtime~", $runtime 496=item $value = cf::db_get $family => $key
394 and return;
395 497
498Returns a single value from the environment database.
499
500=item cf::db_put $family => $key => $value
501
502Stores the given C<$value> in the family. It can currently store binary
503data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
504
505=cut
506
507our $DB;
508
509sub db_init {
510 unless ($DB) {
511 $DB = BDB::db_create $DB_ENV;
512
513 cf::sync_job {
514 eval {
515 $DB->set_flags (BDB::CHKSUM);
516
517 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
518 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
519 cf::cleanup "db_open(db): $!" if $!;
520 };
521 cf::cleanup "db_open(db): $@" if $@;
522 };
396 1 523 }
524}
525
526sub db_get($$) {
527 my $key = "$_[0]/$_[1]";
528
529 cf::sync_job {
530 BDB::db_get $DB, undef, $key, my $data;
531
532 $! ? ()
533 : $data
534 }
535}
536
537sub db_put($$$) {
538 BDB::dbreq_pri 4;
539 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
540}
541
542=item cf::cache $id => [$paths...], $processversion => $process
543
544Generic caching function that returns the value of the resource $id,
545caching and regenerating as required.
546
547This function can block.
548
549=cut
550
551sub cache {
552 my ($id, $src, $processversion, $process) = @_;
553
554 my $meta =
555 join "\x00",
556 $processversion,
557 map {
558 aio_stat $_
559 and Carp::croak "$_: $!";
560
561 ($_, (stat _)[7,9])
562 } @$src;
563
564 my $dbmeta = db_get cache => "$id/meta";
565 if ($dbmeta ne $meta) {
566 # changed, we may need to process
567
568 my @data;
569 my $md5;
570
571 for (0 .. $#$src) {
572 0 <= aio_load $src->[$_], $data[$_]
573 or Carp::croak "$src->[$_]: $!";
574 }
575
576 # if processing is expensive, check
577 # checksum first
578 if (1) {
579 $md5 =
580 join "\x00",
581 $processversion,
582 map {
583 cf::cede_to_tick;
584 ($src->[$_], Digest::MD5::md5_hex $data[$_])
585 } 0.. $#$src;
586
587
588 my $dbmd5 = db_get cache => "$id/md5";
589 if ($dbmd5 eq $md5) {
590 db_put cache => "$id/meta", $meta;
591
592 return db_get cache => "$id/data";
593 }
594 }
595
596 my $t1 = Time::HiRes::time;
597 my $data = $process->(\@data);
598 my $t2 = Time::HiRes::time;
599
600 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
601
602 db_put cache => "$id/data", $data;
603 db_put cache => "$id/md5" , $md5;
604 db_put cache => "$id/meta", $meta;
605
606 return $data;
607 }
608
609 db_get cache => "$id/data"
397} 610}
398 611
399=item cf::datalog type => key => value, ... 612=item cf::datalog type => key => value, ...
400 613
401Log a datalog packet of the given type with the given key-value pairs. 614Log a datalog packet of the given type with the given key-value pairs.
419attach callbacks/event handlers (a collection of which is called an "attachment") 632attach callbacks/event handlers (a collection of which is called an "attachment")
420to it. All such attachable objects support the following methods. 633to it. All such attachable objects support the following methods.
421 634
422In the following description, CLASS can be any of C<global>, C<object> 635In the following description, CLASS can be any of C<global>, C<object>
423C<player>, C<client> or C<map> (i.e. the attachable objects in 636C<player>, C<client> or C<map> (i.e. the attachable objects in
424crossfire+). 637Crossfire TRT).
425 638
426=over 4 639=over 4
427 640
428=item $attachable->attach ($attachment, key => $value...) 641=item $attachable->attach ($attachment, key => $value...)
429 642
592 $registry = $CB_TYPE[$object_type] ||= []; 805 $registry = $CB_TYPE[$object_type] ||= [];
593 806
594 } elsif ($type eq "subtype") { 807 } elsif ($type eq "subtype") {
595 defined $object_type or Carp::croak "subtype specified without type"; 808 defined $object_type or Carp::croak "subtype specified without type";
596 my $object_subtype = shift @arg; 809 my $object_subtype = shift @arg;
597 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 810 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598 811
599 } elsif ($type eq "package") { 812 } elsif ($type eq "package") {
600 my $pkg = shift @arg; 813 my $pkg = shift @arg;
601 814
602 while (my ($name, $id) = each %cb_id) { 815 while (my ($name, $id) = each %cb_id) {
631 _attach $registry, $klass, @attach; 844 _attach $registry, $klass, @attach;
632 } 845 }
633 846
634 $obj->{$name} = \%arg; 847 $obj->{$name} = \%arg;
635 } else { 848 } else {
636 warn "object uses attachment '$name' that is not available, postponing.\n"; 849 warn "object uses attachment '$name' which is not available, postponing.\n";
637 } 850 }
638 851
639 $obj->{_attachment}{$name} = undef; 852 $obj->{_attachment}{$name} = undef;
640} 853}
641 854
643 if (ref $_[0]) { 856 if (ref $_[0]) {
644 _object_attach @_; 857 _object_attach @_;
645 } else { 858 } else {
646 _attach shift->_attach_registry, @_; 859 _attach shift->_attach_registry, @_;
647 } 860 }
861 _recalc_want;
648}; 862};
649 863
650# all those should be optimised 864# all those should be optimised
651sub cf::attachable::detach { 865sub cf::attachable::detach {
652 my ($obj, $name) = @_; 866 my ($obj, $name) = @_;
655 delete $obj->{_attachment}{$name}; 869 delete $obj->{_attachment}{$name};
656 reattach ($obj); 870 reattach ($obj);
657 } else { 871 } else {
658 Carp::croak "cannot, currently, detach class attachments"; 872 Carp::croak "cannot, currently, detach class attachments";
659 } 873 }
874 _recalc_want;
660}; 875};
661 876
662sub cf::attachable::attached { 877sub cf::attachable::attached {
663 my ($obj, $name) = @_; 878 my ($obj, $name) = @_;
664 879
679 "; 894 ";
680 die if $@; 895 die if $@;
681} 896}
682 897
683our $override; 898our $override;
684our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 899our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685 900
686sub override { 901sub override {
687 $override = 1; 902 $override = 1;
688 @invoke_results = (); 903 @INVOKE_RESULTS = (@_);
689} 904}
690 905
691sub do_invoke { 906sub do_invoke {
692 my $event = shift; 907 my $event = shift;
693 my $callbacks = shift; 908 my $callbacks = shift;
694 909
695 @invoke_results = (); 910 @INVOKE_RESULTS = ();
696 911
697 local $override; 912 local $override;
698 913
699 for (@$callbacks) { 914 for (@$callbacks) {
700 eval { &{$_->[1]} }; 915 eval { &{$_->[1]} };
717 932
718Generate an object-specific event with the given arguments. 933Generate an object-specific event with the given arguments.
719 934
720This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 935This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721removed in future versions), and there is no public API to access override 936removed in future versions), and there is no public API to access override
722results (if you must, access C<@cf::invoke_results> directly). 937results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723 938
724=back 939=back
725 940
726=cut 941=cut
727 942
728############################################################################# 943#############################################################################
729# object support 944# object support
945#
946
947sub _can_merge {
948 my ($ob1, $ob2) = @_;
949
950 local $Storable::canonical = 1;
951 my $fob1 = Storable::freeze $ob1;
952 my $fob2 = Storable::freeze $ob2;
953
954 $fob1 eq $fob2
955}
730 956
731sub reattach { 957sub reattach {
732 # basically do the same as instantiate, without calling instantiate 958 # basically do the same as instantiate, without calling instantiate
733 my ($obj) = @_; 959 my ($obj) = @_;
734 960
837 or return; 1063 or return;
838 $av = eval { (Storable::thaw $av)->{objs} }; 1064 $av = eval { (Storable::thaw $av)->{objs} };
839 } 1065 }
840 1066
841 warn sprintf "loading %s (%d)\n", 1067 warn sprintf "loading %s (%d)\n",
842 $filename, length $data, scalar @{$av || []};#d# 1068 $filename, length $data, scalar @{$av || []};
843 return ($data, $av); 1069 return ($data, $av);
844} 1070}
1071
1072=head2 COMMAND CALLBACKS
1073
1074=over 4
1075
1076=cut
845 1077
846############################################################################# 1078#############################################################################
847# command handling &c 1079# command handling &c
848 1080
849=item cf::register_command $name => \&callback($ob,$args); 1081=item cf::register_command $name => \&callback($ob,$args);
862 push @{ $COMMAND{$name} }, [$caller, $cb]; 1094 push @{ $COMMAND{$name} }, [$caller, $cb];
863} 1095}
864 1096
865=item cf::register_extcmd $name => \&callback($pl,$packet); 1097=item cf::register_extcmd $name => \&callback($pl,$packet);
866 1098
867Register a callbackf ro execution when the client sends an extcmd packet. 1099Register a callback for execution when the client sends an (synchronous)
1100extcmd packet. Ext commands will be processed in the order they are
1101received by the server, like other user commands. The first argument is
1102the logged-in player. Ext commands can only be processed after a player
1103has logged in successfully.
868 1104
869If the callback returns something, it is sent back as if reply was being 1105If the callback returns something, it is sent back as if reply was being
870called. 1106called.
871 1107
1108=item cf::register_exticmd $name => \&callback($ns,$packet);
1109
1110Register a callback for execution when the client sends an (asynchronous)
1111exticmd packet. Exti commands are processed by the server as soon as they
1112are received, i.e. out of order w.r.t. other commands. The first argument
1113is a client socket. Exti commands can be received anytime, even before
1114log-in.
1115
1116If the callback returns something, it is sent back as if reply was being
1117called.
1118
872=cut 1119=cut
873 1120
874sub register_extcmd { 1121sub register_extcmd {
875 my ($name, $cb) = @_; 1122 my ($name, $cb) = @_;
876 1123
877 $EXTCMD{$name} = $cb; 1124 $EXTCMD{$name} = $cb;
1125}
1126
1127sub register_exticmd {
1128 my ($name, $cb) = @_;
1129
1130 $EXTICMD{$name} = $cb;
878} 1131}
879 1132
880cf::player->attach ( 1133cf::player->attach (
881 on_command => sub { 1134 on_command => sub {
882 my ($pl, $name, $params) = @_; 1135 my ($pl, $name, $params) = @_;
891 cf::override; 1144 cf::override;
892 }, 1145 },
893 on_extcmd => sub { 1146 on_extcmd => sub {
894 my ($pl, $buf) = @_; 1147 my ($pl, $buf) = @_;
895 1148
896 my $msg = eval { from_json $buf }; 1149 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897 1150
898 if (ref $msg) { 1151 if (ref $msg) {
1152 my ($type, $reply, @payload) =
1153 "ARRAY" eq ref $msg
1154 ? @$msg
1155 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1156
1157 my @reply;
1158
899 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1159 if (my $cb = $EXTCMD{$type}) {
900 if (my %reply = $cb->($pl, $msg)) { 1160 @reply = $cb->($pl, @payload);
901 $pl->ext_reply ($msg->{msgid}, %reply);
902 }
903 } 1161 }
1162
1163 $pl->ext_reply ($reply, @reply)
1164 if $reply;
1165
904 } else { 1166 } else {
905 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1167 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906 } 1168 }
907 1169
908 cf::override; 1170 cf::override;
909 }, 1171 },
910); 1172);
911 1173
912sub load_extension {
913 my ($path) = @_;
914
915 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
916 my $base = $1;
917 my $pkg = $1;
918 $pkg =~ s/[^[:word:]]/_/g;
919 $pkg = "ext::$pkg";
920
921 warn "... loading '$path' into '$pkg'\n";
922
923 open my $fh, "<:utf8", $path
924 or die "$path: $!";
925
926 my $source =
927 "package $pkg; use strict; use utf8;\n"
928 . "#line 1 \"$path\"\n{\n"
929 . (do { local $/; <$fh> })
930 . "\n};\n1";
931
932 unless (eval $source) {
933 my $msg = $@ ? "$path: $@\n"
934 : "extension disabled.\n";
935 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936 warn $@;
937 warn "mandatory extension failed to load, exiting.\n";
938 exit 1;
939 }
940 die $@;
941 }
942
943 push @EXTS, $pkg;
944}
945
946sub load_extensions { 1174sub load_extensions {
1175 cf::sync_job {
1176 my %todo;
1177
947 for my $ext (<$LIBDIR/*.ext>) { 1178 for my $path (<$LIBDIR/*.ext>) {
948 next unless -r $ext; 1179 next unless -r $path;
949 eval { 1180
950 load_extension $ext; 1181 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1182 my $base = $1;
1183 my $pkg = $1;
1184 $pkg =~ s/[^[:word:]]/_/g;
1185 $pkg = "ext::$pkg";
1186
1187 open my $fh, "<:utf8", $path
1188 or die "$path: $!";
1189
1190 my $source = do { local $/; <$fh> };
1191
1192 my %ext = (
1193 path => $path,
1194 base => $base,
1195 pkg => $pkg,
1196 );
1197
1198 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1199 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1200
1201 $ext{source} =
1202 "package $pkg; use strict; use utf8;\n"
1203 . "#line 1 \"$path\"\n{\n"
1204 . $source
1205 . "\n};\n1";
1206
1207 $todo{$base} = \%ext;
1208 }
1209
1210 my %done;
1211 while (%todo) {
1212 my $progress;
1213
1214 while (my ($k, $v) = each %todo) {
1215 for (split /,\s*/, $v->{meta}{depends}) {
1216 goto skip
1217 unless exists $done{$_};
1218 }
1219
1220 warn "... loading '$k' into '$v->{pkg}'\n";
1221
1222 unless (eval $v->{source}) {
1223 my $msg = $@ ? "$v->{path}: $@\n"
1224 : "$v->{base}: extension inactive.\n";
1225
1226 if (exists $v->{meta}{mandatory}) {
1227 warn $msg;
1228 warn "mandatory extension failed to load, exiting.\n";
1229 exit 1;
1230 }
1231
1232 warn $msg;
1233 }
1234
1235 $done{$k} = delete $todo{$k};
1236 push @EXTS, $v->{pkg};
1237 $progress = 1;
951 1 1238 }
952 } or warn "$ext not loaded: $@"; 1239
1240 skip:
1241 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1242 unless $progress;
1243 }
953 } 1244 };
954} 1245}
955 1246
956############################################################################# 1247#############################################################################
1248
1249=back
957 1250
958=head2 CORE EXTENSIONS 1251=head2 CORE EXTENSIONS
959 1252
960Functions and methods that extend core crossfire objects. 1253Functions and methods that extend core crossfire objects.
961 1254
1032 1325
1033 aio_mkdir playerdir $pl, 0770; 1326 aio_mkdir playerdir $pl, 0770;
1034 $pl->{last_save} = $cf::RUNTIME; 1327 $pl->{last_save} = $cf::RUNTIME;
1035 1328
1036 $pl->save_pl ($path); 1329 $pl->save_pl ($path);
1037 Coro::cede; 1330 cf::cede_to_tick;
1038} 1331}
1039 1332
1040sub new($) { 1333sub new($) {
1041 my ($login) = @_; 1334 my ($login) = @_;
1042 1335
1046 $self->{deny_save} = 1; 1339 $self->{deny_save} = 1;
1047 1340
1048 $cf::PLAYER{$login} = $self; 1341 $cf::PLAYER{$login} = $self;
1049 1342
1050 $self 1343 $self
1344}
1345
1346=item $player->send_msg ($channel, $msg, $color, [extra...])
1347
1348=cut
1349
1350sub send_msg {
1351 my $ns = shift->ns
1352 or return;
1353 $ns->send_msg (@_);
1051} 1354}
1052 1355
1053=item $pl->quit_character 1356=item $pl->quit_character
1054 1357
1055Nukes the player without looking back. If logged in, the connection will 1358Nukes the player without looking back. If logged in, the connection will
1149 } 1452 }
1150 1453
1151 \@paths 1454 \@paths
1152} 1455}
1153 1456
1457=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1458
1459Expand crossfire pod fragments into protocol xml.
1460
1461=cut
1462
1463sub expand_cfpod {
1464 ((my $self), (local $_)) = @_;
1465
1466 # escape & and <
1467 s/&/&amp;/g;
1468 s/(?<![BIUGHT])</&lt;/g;
1469
1470 # this is buggy, it needs to properly take care of nested <'s
1471
1472 1 while
1473 # replace B<>, I<>, U<> etc.
1474 s/B<([^\>]*)>/<b>$1<\/b>/
1475 || s/I<([^\>]*)>/<i>$1<\/i>/
1476 || s/U<([^\>]*)>/<u>$1<\/u>/
1477 || s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
1478 # replace G<male|female> tags
1479 || s{G<([^>|]*)\|([^>]*)>}{
1480 $self->gender ? $2 : $1
1481 }ge
1482 # replace H<hint text>
1483 || s{H<([^\>]*)>}
1484 {
1485 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
1486 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1487 "")
1488 [$self->{hintmode}]
1489 }ge;
1490
1491 # create single paragraphs (very hackish)
1492 s/(?<=\S)\n(?=\w)/ /g;
1493
1494 # compress some whitespace
1495 s/\s+\n/\n/g; # ws line-ends
1496 s/\n\n+/\n/g; # double lines
1497 s/^\n+//; # beginning lines
1498 s/\n+$//; # ending lines
1499
1500 $_
1501}
1502
1503sub hintmode {
1504 $_[0]{hintmode} = $_[1] if @_ > 1;
1505 $_[0]{hintmode}
1506}
1507
1154=item $player->ext_reply ($msgid, %msg) 1508=item $player->ext_reply ($msgid, @msg)
1155 1509
1156Sends an ext reply to the player. 1510Sends an ext reply to the player.
1157 1511
1158=cut 1512=cut
1159 1513
1160sub ext_reply($$%) { 1514sub ext_reply($$@) {
1161 my ($self, $id, %msg) = @_; 1515 my ($self, $id, @msg) = @_;
1162 1516
1163 $msg{msgid} = $id; 1517 $self->ns->ext_reply ($id, @msg)
1164
1165 $self->send ("ext " . cf::to_json \%msg);
1166} 1518}
1167 1519
1168=item $player->ext_event ($type, %msg) 1520=item $player->ext_msg ($type, @msg)
1169 1521
1170Sends an ext event to the client. 1522Sends an ext event to the client.
1171 1523
1172=cut 1524=cut
1173 1525
1174sub ext_event($$%) { 1526sub ext_msg($$@) {
1175 my ($self, $type, %msg) = @_; 1527 my ($self, $type, @msg) = @_;
1176 1528
1177 $self->ns->ext_event ($type, %msg); 1529 $self->ns->ext_msg ($type, @msg);
1178} 1530}
1179 1531
1180=head3 cf::region 1532=head3 cf::region
1181 1533
1182=over 4 1534=over 4
1185 1537
1186package cf::region; 1538package cf::region;
1187 1539
1188=item cf::region::find_by_path $path 1540=item cf::region::find_by_path $path
1189 1541
1190Tries to decuce the probable region for a map knowing only its path. 1542Tries to decuce the likely region for a map knowing only its path.
1191 1543
1192=cut 1544=cut
1193 1545
1194sub find_by_path($) { 1546sub find_by_path($) {
1195 my ($path) = @_; 1547 my ($path) = @_;
1196 1548
1197 my ($match, $specificity); 1549 my ($match, $specificity);
1198 1550
1199 for my $region (list) { 1551 for my $region (list) {
1200 if ($region->match && $path =~ $region->match) { 1552 if ($region->{match} && $path =~ $region->{match}) {
1201 ($match, $specificity) = ($region, $region->specificity) 1553 ($match, $specificity) = ($region, $region->specificity)
1202 if $region->specificity > $specificity; 1554 if $region->specificity > $specificity;
1203 } 1555 }
1204 } 1556 }
1205 1557
1269 my ($self, $merge) = @_; 1621 my ($self, $merge) = @_;
1270 1622
1271 # we have to keep some variables in memory intact 1623 # we have to keep some variables in memory intact
1272 local $self->{path}; 1624 local $self->{path};
1273 local $self->{load_path}; 1625 local $self->{load_path};
1274 local $self->{deny_save};
1275 local $self->{deny_reset};
1276 1626
1277 $self->SUPER::thawer_merge ($merge); 1627 $self->SUPER::thawer_merge ($merge);
1278} 1628}
1279 1629
1280sub normalise { 1630sub normalise {
1327 $self->init; # pass $1 etc. 1677 $self->init; # pass $1 etc.
1328 return $self; 1678 return $self;
1329 } 1679 }
1330 } 1680 }
1331 1681
1332 Carp::carp "unable to resolve path '$path' (base '$base')."; 1682 Carp::cluck "unable to resolve path '$path' (base '$base').";
1333 () 1683 ()
1334} 1684}
1335 1685
1336sub init { 1686sub init {
1337 my ($self) = @_; 1687 my ($self) = @_;
1378sub change_all_map_light { 1728sub change_all_map_light {
1379 my ($change) = @_; 1729 my ($change) = @_;
1380 1730
1381 $_->change_map_light ($change) 1731 $_->change_map_light ($change)
1382 for grep $_->outdoor, values %cf::MAP; 1732 for grep $_->outdoor, values %cf::MAP;
1733}
1734
1735sub decay_objects {
1736 my ($self) = @_;
1737
1738 return if $self->{deny_reset};
1739
1740 $self->do_decay_objects;
1383} 1741}
1384 1742
1385sub unlink_save { 1743sub unlink_save {
1386 my ($self) = @_; 1744 my ($self) = @_;
1387 1745
1445 $self->load_header_orig 1803 $self->load_header_orig
1446 or return; 1804 or return;
1447 $self->prepare_orig; 1805 $self->prepare_orig;
1448 } 1806 }
1449 1807
1808 $self->{deny_reset} = 1
1809 if $self->no_reset;
1810
1450 $self->default_region (cf::region::find_by_path $self->{path}) 1811 $self->default_region (cf::region::find_by_path $self->{path})
1451 unless $self->default_region; 1812 unless $self->default_region;
1452 1813
1453 1 1814 1
1454} 1815}
1469 $map->{last_save} = $cf::RUNTIME; 1830 $map->{last_save} = $cf::RUNTIME;
1470 1831
1471 $map->load_header 1832 $map->load_header
1472 or return; 1833 or return;
1473 1834
1474 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?) 1835 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475 # doing this can freeze the server in a sync job, obviously 1836 # doing this can freeze the server in a sync job, obviously
1476 #$cf::WAIT_FOR_TICK->wait; 1837 #$cf::WAIT_FOR_TICK->wait;
1477 $map->reset; 1838 $map->reset;
1478 undef $guard; 1839 undef $guard;
1479 return find $path; 1840 return find $path;
1492 local $self->{deny_reset} = 1; # loading can take a long time 1853 local $self->{deny_reset} = 1; # loading can take a long time
1493 1854
1494 my $path = $self->{path}; 1855 my $path = $self->{path};
1495 1856
1496 { 1857 {
1858 my $guard1 = cf::lock_acquire "map_data:$path";
1497 my $guard = cf::lock_acquire "map_load:$path"; 1859 my $guard2 = cf::lock_acquire "map_load:$path";
1498 1860
1499 return if $self->in_memory != cf::MAP_SWAPPED; 1861 return if $self->in_memory != cf::MAP_SWAPPED;
1500 1862
1501 $self->in_memory (cf::MAP_LOADING); 1863 $self->in_memory (cf::MAP_LOADING);
1502 1864
1503 $self->alloc; 1865 $self->alloc;
1504 1866
1505 $self->pre_load; 1867 $self->pre_load;
1506 Coro::cede; 1868 cf::cede_to_tick;
1507 1869
1508 $self->_load_objects ($self->{load_path}, 1) 1870 $self->_load_objects ($self->{load_path}, 1)
1509 or return; 1871 or return;
1510 1872
1511 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1873 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1517 $self->clear_unique_items; 1879 $self->clear_unique_items;
1518 $self->_load_objects ($uniq, 0); 1880 $self->_load_objects ($uniq, 0);
1519 } 1881 }
1520 } 1882 }
1521 1883
1522 Coro::cede; 1884 cf::cede_to_tick;
1523 # now do the right thing for maps 1885 # now do the right thing for maps
1524 $self->link_multipart_objects; 1886 $self->link_multipart_objects;
1525 $self->difficulty ($self->estimate_difficulty) 1887 $self->difficulty ($self->estimate_difficulty)
1526 unless $self->difficulty; 1888 unless $self->difficulty;
1527 Coro::cede; 1889 cf::cede_to_tick;
1528 1890
1529 unless ($self->{deny_activate}) { 1891 unless ($self->{deny_activate}) {
1530 $self->decay_objects; 1892 $self->decay_objects;
1531 $self->fix_auto_apply; 1893 $self->fix_auto_apply;
1532 $self->update_buttons; 1894 $self->update_buttons;
1533 Coro::cede; 1895 cf::cede_to_tick;
1534 $self->set_darkness_map; 1896 $self->set_darkness_map;
1535 Coro::cede; 1897 cf::cede_to_tick;
1536 $self->activate; 1898 $self->activate;
1537 } 1899 }
1900
1901 $self->{last_save} = $cf::RUNTIME;
1902 $self->last_access ($cf::RUNTIME);
1538 1903
1539 $self->in_memory (cf::MAP_IN_MEMORY); 1904 $self->in_memory (cf::MAP_IN_MEMORY);
1540 } 1905 }
1541 1906
1542 $self->post_load; 1907 $self->post_load;
1546 my ($self, $ob) = @_; 1911 my ($self, $ob) = @_;
1547 1912
1548 return find "~" . $ob->name . "/" . $self->{path} 1913 return find "~" . $ob->name . "/" . $self->{path}
1549 if $self->per_player; 1914 if $self->per_player;
1550 1915
1916# return find "?party/" . $ob->name . "/" . $self->{path}
1917# if $self->per_party;
1918
1551 $self 1919 $self
1552} 1920}
1553 1921
1554# find and load all maps in the 3x3 area around a map 1922# find and load all maps in the 3x3 area around a map
1555sub load_diag { 1923sub load_neighbours {
1556 my ($map) = @_; 1924 my ($map) = @_;
1557 1925
1558 my @diag; # diagonal neighbours 1926 my @neigh; # diagonal neighbours
1559 1927
1560 for (0 .. 3) { 1928 for (0 .. 3) {
1561 my $neigh = $map->tile_path ($_) 1929 my $neigh = $map->tile_path ($_)
1562 or next; 1930 or next;
1563 $neigh = find $neigh, $map 1931 $neigh = find $neigh, $map
1564 or next; 1932 or next;
1565 $neigh->load; 1933 $neigh->load;
1566 1934
1935 push @neigh,
1567 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh], 1936 [$neigh->tile_path (($_ + 3) % 4), $neigh],
1568 [$neigh->tile_path (($_ + 1) % 4), $neigh]; 1937 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1569 } 1938 }
1570 1939
1571 for (@diag) { 1940 for (grep defined $_->[0], @neigh) {
1941 my ($path, $origin) = @$_;
1572 my $neigh = find @$_ 1942 my $neigh = find $path, $origin
1573 or next; 1943 or next;
1574 $neigh->load; 1944 $neigh->load;
1575 } 1945 }
1576} 1946}
1577 1947
1582} 1952}
1583 1953
1584sub do_load_sync { 1954sub do_load_sync {
1585 my ($map) = @_; 1955 my ($map) = @_;
1586 1956
1957 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1958 if $Coro::current == $Coro::main;
1959
1587 cf::sync_job { $map->load }; 1960 cf::sync_job { $map->load };
1588} 1961}
1589 1962
1590our %MAP_PREFETCH; 1963our %MAP_PREFETCH;
1591our $MAP_PREFETCHER = undef; 1964our $MAP_PREFETCHER = undef;
1592 1965
1593sub find_async { 1966sub find_async {
1594 my ($path, $origin) = @_; 1967 my ($path, $origin, $load) = @_;
1595 1968
1596 $path = normalise $path, $origin && $origin->{path}; 1969 $path = normalise $path, $origin && $origin->{path};
1597 1970
1598 if (my $map = $cf::MAP{$path}) { 1971 if (my $map = $cf::MAP{$path}) {
1599 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1972 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1600 } 1973 }
1601 1974
1602 undef $MAP_PREFETCH{$path}; 1975 $MAP_PREFETCH{$path} |= $load;
1976
1603 $MAP_PREFETCHER ||= cf::async { 1977 $MAP_PREFETCHER ||= cf::async {
1604 while (%MAP_PREFETCH) { 1978 while (%MAP_PREFETCH) {
1605 for my $path (keys %MAP_PREFETCH) { 1979 while (my ($k, $v) = each %MAP_PREFETCH) {
1606 my $map = find $path 1980 if (my $map = find $k) {
1607 or next;
1608 $map->load; 1981 $map->load if $v;
1982 }
1609 1983
1610 delete $MAP_PREFETCH{$path}; 1984 delete $MAP_PREFETCH{$k};
1611 } 1985 }
1612 } 1986 }
1613 undef $MAP_PREFETCHER; 1987 undef $MAP_PREFETCHER;
1614 }; 1988 };
1615 $MAP_PREFETCHER->prio (6); 1989 $MAP_PREFETCHER->prio (6);
1618} 1992}
1619 1993
1620sub save { 1994sub save {
1621 my ($self) = @_; 1995 my ($self) = @_;
1622 1996
1623 my $lock = cf::lock_acquire "map_data:" . $self->path; 1997 my $lock = cf::lock_acquire "map_data:$self->{path}";
1624 1998
1625 $self->{last_save} = $cf::RUNTIME; 1999 $self->{last_save} = $cf::RUNTIME;
1626 2000
1627 return unless $self->dirty; 2001 return unless $self->dirty;
1628 2002
1651 my ($self) = @_; 2025 my ($self) = @_;
1652 2026
1653 # save first because save cedes 2027 # save first because save cedes
1654 $self->save; 2028 $self->save;
1655 2029
1656 my $lock = cf::lock_acquire "map_data:" . $self->path; 2030 my $lock = cf::lock_acquire "map_data:$self->{path}";
1657 2031
1658 return if $self->players; 2032 return if $self->players;
1659 return if $self->in_memory != cf::MAP_IN_MEMORY; 2033 return if $self->in_memory != cf::MAP_IN_MEMORY;
1660 return if $self->{deny_save}; 2034 return if $self->{deny_save};
1661 2035
1665 2039
1666sub reset_at { 2040sub reset_at {
1667 my ($self) = @_; 2041 my ($self) = @_;
1668 2042
1669 # TODO: safety, remove and allow resettable per-player maps 2043 # TODO: safety, remove and allow resettable per-player maps
1670 return 1e99 if $self->isa ("ext::map_per_player");#d#
1671 return 1e99 if $self->{deny_reset}; 2044 return 1e99 if $self->{deny_reset};
1672 2045
1673 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2046 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2047 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675 2048
1686 my ($self) = @_; 2059 my ($self) = @_;
1687 2060
1688 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2061 my $lock = cf::lock_acquire "map_data:$self->{path}";
1689 2062
1690 return if $self->players; 2063 return if $self->players;
1691 return if $self->isa ("ext::map_per_player");#d#
1692 2064
1693 warn "resetting map ", $self->path;#d# 2065 warn "resetting map ", $self->path;
1694 2066
1695 $self->in_memory (cf::MAP_SWAPPED); 2067 $self->in_memory (cf::MAP_SWAPPED);
1696 2068
1697 # need to save uniques path 2069 # need to save uniques path
1698 unless ($self->{deny_save}) { 2070 unless ($self->{deny_save}) {
1715my $nuke_counter = "aaaa"; 2087my $nuke_counter = "aaaa";
1716 2088
1717sub nuke { 2089sub nuke {
1718 my ($self) = @_; 2090 my ($self) = @_;
1719 2091
2092 {
2093 my $lock = cf::lock_acquire "map_data:$self->{path}";
2094
1720 delete $cf::MAP{$self->path}; 2095 delete $cf::MAP{$self->path};
1721 2096
1722 $self->unlink_save; 2097 $self->unlink_save;
1723 2098
1724 bless $self, "cf::map"; 2099 bless $self, "cf::map";
1725 delete $self->{deny_reset}; 2100 delete $self->{deny_reset};
1726 $self->{deny_save} = 1; 2101 $self->{deny_save} = 1;
1727 $self->reset_timeout (1); 2102 $self->reset_timeout (1);
1728 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++)); 2103 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729 2104
1730 $cf::MAP{$self->path} = $self; 2105 $cf::MAP{$self->path} = $self;
2106 }
1731 2107
1732 $self->reset; # polite request, might not happen 2108 $self->reset; # polite request, might not happen
2109}
2110
2111=item $maps = cf::map::tmp_maps
2112
2113Returns an arrayref with all map paths of currently instantiated and saved
2114maps. May block.
2115
2116=cut
2117
2118sub tmp_maps() {
2119 [
2120 map {
2121 utf8::decode $_;
2122 /\.map$/
2123 ? normalise $_
2124 : ()
2125 } @{ aio_readdir $TMPDIR or [] }
2126 ]
2127}
2128
2129=item $maps = cf::map::random_maps
2130
2131Returns an arrayref with all map paths of currently instantiated and saved
2132random maps. May block.
2133
2134=cut
2135
2136sub random_maps() {
2137 [
2138 map {
2139 utf8::decode $_;
2140 /\.map$/
2141 ? normalise "?random/$_"
2142 : ()
2143 } @{ aio_readdir $RANDOMDIR or [] }
2144 ]
1733} 2145}
1734 2146
1735=item cf::map::unique_maps 2147=item cf::map::unique_maps
1736 2148
1737Returns an arrayref of paths of all shared maps that have 2149Returns an arrayref of paths of all shared maps that have
1738instantiated unique items. May block. 2150instantiated unique items. May block.
1739 2151
1740=cut 2152=cut
1741 2153
1742sub unique_maps() { 2154sub unique_maps() {
1743 my $files = aio_readdir $UNIQUEDIR 2155 [
1744 or return; 2156 map {
1745
1746 my @paths;
1747
1748 for (@$files) {
1749 utf8::decode $_; 2157 utf8::decode $_;
1750 next if /\.pst$/; 2158 /\.map$/
1751 next unless /^$PATH_SEP/o; 2159 ? normalise $_
1752 2160 : ()
1753 push @paths, cf::map::normalise $_; 2161 } @{ aio_readdir $UNIQUEDIR or [] }
1754 } 2162 ]
1755
1756 \@paths
1757} 2163}
1758 2164
1759package cf; 2165package cf;
1760 2166
1761=back 2167=back
1807 2213
1808 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2214 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809 2215
1810 if ($self->{record_replies}) { 2216 if ($self->{record_replies}) {
1811 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2217 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2218
1812 } else { 2219 } else {
2220 my $pl = $self->contr;
2221
2222 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2223 my $dialog = $pl->{npc_dialog};
2224 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2225
2226 } else {
1813 $msg = $npc->name . " says: $msg" if $npc; 2227 $msg = $npc->name . " says: $msg" if $npc;
1814 $self->message ($msg, $flags); 2228 $self->message ($msg, $flags);
2229 }
1815 } 2230 }
2231}
2232
2233=item $object->send_msg ($channel, $msg, $color, [extra...])
2234
2235=cut
2236
2237sub cf::object::send_msg {
2238 my $pl = shift->contr
2239 or return;
2240 $pl->send_msg (@_);
1816} 2241}
1817 2242
1818=item $player_object->may ("access") 2243=item $player_object->may ("access")
1819 2244
1820Returns wether the given player is authorized to access resource "access" 2245Returns wether the given player is authorized to access resource "access"
1867 $self->deactivate_recursive; 2292 $self->deactivate_recursive;
1868 2293
1869 return if UNIVERSAL::isa $self->map, "ext::map_link"; 2294 return if UNIVERSAL::isa $self->map, "ext::map_link";
1870 2295
1871 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2296 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1872 if $self->map; 2297 if $self->map && $self->map->{path} ne "{link}";
1873 2298
1874 $self->enter_map ($LINK_MAP || link_map, 10, 10); 2299 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1875} 2300}
1876 2301
1877sub cf::object::player::leave_link { 2302sub cf::object::player::leave_link {
1878 my ($self, $map, $x, $y) = @_; 2303 my ($self, $map, $x, $y) = @_;
2304
2305 return unless $self->contr->active;
1879 2306
1880 my $link_pos = delete $self->{_link_pos}; 2307 my $link_pos = delete $self->{_link_pos};
1881 2308
1882 unless ($map) { 2309 unless ($map) {
1883 # restore original map position 2310 # restore original map position
1897 # use -1 or undef as default coordinates, not 0, 0 2324 # use -1 or undef as default coordinates, not 0, 0
1898 ($x, $y) = ($map->enter_x, $map->enter_y) 2325 ($x, $y) = ($map->enter_x, $map->enter_y)
1899 if $x <=0 && $y <= 0; 2326 if $x <=0 && $y <= 0;
1900 2327
1901 $map->load; 2328 $map->load;
1902 $map->load_diag; 2329 $map->load_neighbours;
1903 2330
1904 return unless $self->contr->active; 2331 return unless $self->contr->active;
1905 $self->activate_recursive; 2332 $self->activate_recursive;
1906 2333
1907 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2334 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1908 $self->enter_map ($map, $x, $y); 2335 $self->enter_map ($map, $x, $y);
1909} 2336}
1910 2337
1911cf::player->attach ( 2338=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1912 on_logout => sub {
1913 my ($pl) = @_;
1914 2339
1915 # abort map switching before logout 2340Moves the player to the given map-path and coordinates by first freezing
1916 if ($pl->ob->{_link_pos}) { 2341her, loading and preparing them map, calling the provided $check callback
1917 cf::sync_job { 2342that has to return the map if sucecssful, and then unfreezes the player on
1918 $pl->ob->leave_link 2343the new (success) or old (failed) map position. In either case, $done will
1919 }; 2344be called at the end of this process.
1920 }
1921 },
1922 on_login => sub {
1923 my ($pl) = @_;
1924 2345
1925 # try to abort aborted map switching on player login :)
1926 # should happen only on crashes
1927 if ($pl->ob->{_link_pos}) {
1928 $pl->ob->enter_link;
1929 (async {
1930 $pl->ob->reply (undef,
1931 "There was an internal problem at your last logout, "
1932 . "the server will try to bring you to your intended destination in a second.",
1933 cf::NDI_RED);
1934 # we need this sleep as the login has a concurrent enter_exit running
1935 # and this sleep increases chances of the player not ending up in scorn
1936 Coro::Timer::sleep 1;
1937 $pl->ob->leave_link;
1938 })->prio (2);
1939 }
1940 },
1941);
1942
1943=item $player_object->goto ($path, $x, $y)
1944
1945=cut 2346=cut
2347
2348our $GOTOGEN;
1946 2349
1947sub cf::object::player::goto { 2350sub cf::object::player::goto {
1948 my ($self, $path, $x, $y) = @_; 2351 my ($self, $path, $x, $y, $check, $done) = @_;
2352
2353 # do generation counting so two concurrent goto's will be executed in-order
2354 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1949 2355
1950 $self->enter_link; 2356 $self->enter_link;
1951 2357
1952 (async { 2358 (async {
1953 my $map = eval { 2359 my $map = eval {
1954 my $map = cf::map::find $path; 2360 my $map = cf::map::find $path;
2361
2362 if ($map) {
1955 $map = $map->customise_for ($self) if $map; 2363 $map = $map->customise_for ($self);
2364 $map = $check->($map) if $check && $map;
2365 } else {
2366 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2367 }
2368
1956 $map 2369 $map
2370 };
2371
2372 if ($@) {
2373 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2374 LOG llevError | logBacktrace, Carp::longmess $@;
1957 } or 2375 }
1958 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1959 2376
2377 if ($gen == $self->{_goto_generation}) {
2378 delete $self->{_goto_generation};
1960 $self->leave_link ($map, $x, $y); 2379 $self->leave_link ($map, $x, $y);
2380 }
2381
2382 $done->() if $done;
1961 })->prio (1); 2383 })->prio (1);
1962} 2384}
1963 2385
1964=item $player_object->enter_exit ($exit_object) 2386=item $player_object->enter_exit ($exit_object)
1965 2387
2034 my $hp = $exit->stats->hp; 2456 my $hp = $exit->stats->hp;
2035 my $sp = $exit->stats->sp; 2457 my $sp = $exit->stats->sp;
2036 2458
2037 $self->enter_link; 2459 $self->enter_link;
2038 2460
2461 # if exit is damned, update players death & WoR home-position
2462 $self->contr->savebed ($slaying, $hp, $sp)
2463 if $exit->flag (FLAG_DAMNED);
2464
2039 (async { 2465 (async {
2040 $self->deactivate_recursive; # just to be sure 2466 $self->deactivate_recursive; # just to be sure
2041 unless (eval { 2467 unless (eval {
2042 $self->goto ($slaying, $hp, $sp); 2468 $self->goto ($slaying, $hp, $sp);
2043 2469
2070 2496
2071 utf8::encode $text; 2497 utf8::encode $text;
2072 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text); 2498 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2073} 2499}
2074 2500
2501=item $client->send_msg ($channel, $msg, $color, [extra...])
2502
2503Send a drawinfo or msg packet to the client, formatting the msg for the
2504client if neccessary. C<$type> should be a string identifying the type of
2505the message, with C<log> being the default. If C<$color> is negative, suppress
2506the message unless the client supports the msg packet.
2507
2508=cut
2509
2510our %CHANNEL = (
2511 "c/identify" => {
2512 id => "identify",
2513 title => "Identify",
2514 reply => undef,
2515 tooltip => "Items recently identified",
2516 },
2517 "c/examine" => {
2518 id => "examine",
2519 title => "Examine",
2520 reply => undef,
2521 tooltip => "Signs and other items you examined",
2522 },
2523);
2524
2525sub cf::client::send_msg {
2526 my ($self, $channel, $msg, $color, @extra) = @_;
2527
2528 $msg = $self->pl->expand_cfpod ($msg);
2529
2530 $color &= cf::NDI_CLIENT_MASK; # just in case...
2531
2532 # check predefined channels, for the benefit of C
2533 $channel = $CHANNEL{$channel} if $CHANNEL{$channel};
2534
2535 if (ref $channel) {
2536 # send meta info to client, if not yet sent
2537 unless (exists $self->{channel}{$channel->{id}}) {
2538 $self->{channel}{$channel->{id}} = $channel;
2539 $self->ext_msg (channel_info => $channel);
2540 }
2541
2542 $channel = $channel->{id};
2543 }
2544
2545 return unless @extra || length $msg;
2546
2547 if ($self->can_msg) {
2548 # default colour, mask it out
2549 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2550 if $color & cf::NDI_DEF;
2551
2552 $self->send_packet ("msg " . $self->{json_coder}->encode (
2553 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
2554 } else {
2555 if ($color >= 0) {
2556 # replace some tags by gcfclient-compatible ones
2557 for ($msg) {
2558 1 while
2559 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2560 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2561 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2562 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2563 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2564 }
2565
2566 $color &= cf::NDI_COLOR_MASK;
2567
2568 utf8::encode $msg;
2569
2570 if (0 && $msg =~ /\[/) {
2571 # COMMAND/INFO
2572 $self->send_packet ("drawextinfo $color 10 8 $msg")
2573 } else {
2574 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2575 $self->send_packet ("drawinfo $color $msg")
2576 }
2577 }
2578 }
2579}
2580
2075=item $client->ext_event ($type, %msg) 2581=item $client->ext_msg ($type, @msg)
2076 2582
2077Sends an exti event to the client. 2583Sends an ext event to the client.
2078 2584
2079=cut 2585=cut
2080 2586
2081sub cf::client::ext_event($$%) { 2587sub cf::client::ext_msg($$@) {
2082 my ($self, $type, %msg) = @_; 2588 my ($self, $type, @msg) = @_;
2083 2589
2590 if ($self->extcmd == 2) {
2591 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2592 } elsif ($self->extcmd == 1) { # TODO: remove
2084 $msg{msgtype} = "event_$type"; 2593 push @msg, msgtype => "event_$type";
2085 $self->send_packet ("ext " . cf::to_json \%msg); 2594 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2595 }
2596}
2597
2598=item $client->ext_reply ($msgid, @msg)
2599
2600Sends an ext reply to the client.
2601
2602=cut
2603
2604sub cf::client::ext_reply($$@) {
2605 my ($self, $id, @msg) = @_;
2606
2607 if ($self->extcmd == 2) {
2608 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2609 } elsif ($self->extcmd == 1) {
2610 #TODO: version 1, remove
2611 unshift @msg, msgtype => "reply", msgid => $id;
2612 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2613 }
2086} 2614}
2087 2615
2088=item $success = $client->query ($flags, "text", \&cb) 2616=item $success = $client->query ($flags, "text", \&cb)
2089 2617
2090Queues a query to the client, calling the given callback with 2618Queues a query to the client, calling the given callback with
2091the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2619the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2092C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2620C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2093 2621
2094Queries can fail, so check the return code. Or don't, as queries will become 2622Queries can fail, so check the return code. Or don't, as queries will
2095reliable at some point in the future. 2623become reliable at some point in the future.
2096 2624
2097=cut 2625=cut
2098 2626
2099sub cf::client::query { 2627sub cf::client::query {
2100 my ($self, $flags, $text, $cb) = @_; 2628 my ($self, $flags, $text, $cb) = @_;
2108 utf8::encode $text; 2636 utf8::encode $text;
2109 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2637 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2110 2638
2111 $self->send_packet ($self->{query_queue}[0][0]) 2639 $self->send_packet ($self->{query_queue}[0][0])
2112 if @{ $self->{query_queue} } == 1; 2640 if @{ $self->{query_queue} } == 1;
2641
2642 1
2113} 2643}
2114 2644
2115cf::client->attach ( 2645cf::client->attach (
2646 on_connect => sub {
2647 my ($ns) = @_;
2648
2649 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2650 },
2116 on_reply => sub { 2651 on_reply => sub {
2117 my ($ns, $msg) = @_; 2652 my ($ns, $msg) = @_;
2118 2653
2119 # this weird shuffling is so that direct followup queries 2654 # this weird shuffling is so that direct followup queries
2120 # get handled first 2655 # get handled first
2132 } else { 2667 } else {
2133 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2668 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2134 } 2669 }
2135 } 2670 }
2136 }, 2671 },
2672 on_exticmd => sub {
2673 my ($ns, $buf) = @_;
2674
2675 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2676
2677 if (ref $msg) {
2678 my ($type, $reply, @payload) =
2679 "ARRAY" eq ref $msg
2680 ? @$msg
2681 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2682
2683 my @reply;
2684
2685 if (my $cb = $EXTICMD{$type}) {
2686 @reply = $cb->($ns, @payload);
2687 }
2688
2689 $ns->ext_reply ($reply, @reply)
2690 if $reply;
2691
2692 } else {
2693 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2694 }
2695
2696 cf::override;
2697 },
2137); 2698);
2138 2699
2139=item $client->async (\&cb) 2700=item $client->async (\&cb)
2140 2701
2141Create a new coroutine, running the specified callback. The coroutine will 2702Create a new coroutine, running the specified callback. The coroutine will
2182our $safe = new Safe "safe"; 2743our $safe = new Safe "safe";
2183our $safe_hole = new Safe::Hole; 2744our $safe_hole = new Safe::Hole;
2184 2745
2185$SIG{FPE} = 'IGNORE'; 2746$SIG{FPE} = 'IGNORE';
2186 2747
2187$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 2748$safe->permit_only (Opcode::opset qw(
2749 :base_core :base_mem :base_orig :base_math
2750 grepstart grepwhile mapstart mapwhile
2751 sort time
2752));
2188 2753
2189# here we export the classes and methods available to script code 2754# here we export the classes and methods available to script code
2190 2755
2191=pod 2756=pod
2192 2757
2193The following functions and methods are available within a safe environment: 2758The following functions and methods are available within a safe environment:
2194 2759
2195 cf::object contr pay_amount pay_player map 2760 cf::object
2761 contr pay_amount pay_player map x y force_find force_add
2762 insert remove name archname title slaying race decrease_ob_nr
2763
2196 cf::object::player player 2764 cf::object::player
2197 cf::player peaceful 2765 player
2198 cf::map trigger 2766
2767 cf::player
2768 peaceful
2769
2770 cf::map
2771 trigger
2199 2772
2200=cut 2773=cut
2201 2774
2202for ( 2775for (
2203 ["cf::object" => qw(contr pay_amount pay_player map)], 2776 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
2777 insert remove inv name archname title slaying race
2778 decrease_ob_nr)],
2204 ["cf::object::player" => qw(player)], 2779 ["cf::object::player" => qw(player)],
2205 ["cf::player" => qw(peaceful)], 2780 ["cf::player" => qw(peaceful)],
2206 ["cf::map" => qw(trigger)], 2781 ["cf::map" => qw(trigger)],
2207) { 2782) {
2208 no strict 'refs'; 2783 no strict 'refs';
2279=back 2854=back
2280 2855
2281=cut 2856=cut
2282 2857
2283############################################################################# 2858#############################################################################
2284
2285=head2 EXTENSION DATABASE SUPPORT
2286
2287Crossfire maintains a very simple database for extension use. It can
2288currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2289convert to/from binary).
2290
2291The parameter C<$family> should best start with the name of the extension
2292using it, it should be unique.
2293
2294=over 4
2295
2296=item $value = cf::db_get $family => $key
2297
2298Returns a single value from the database.
2299
2300=item cf::db_put $family => $key => $value
2301
2302Stores the given C<$value> in the family.
2303
2304=cut
2305
2306our $DB;
2307
2308sub db_init {
2309 unless ($DB) {
2310 $DB = BDB::db_create $DB_ENV;
2311
2312 cf::sync_job {
2313 eval {
2314 $DB->set_flags (BDB::CHKSUM);
2315
2316 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2317 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2318 cf::cleanup "db_open(db): $!" if $!;
2319 };
2320 cf::cleanup "db_open(db): $@" if $@;
2321 };
2322 }
2323}
2324
2325sub db_get($$) {
2326 my $key = "$_[0]/$_[1]";
2327
2328 cf::sync_job {
2329 BDB::db_get $DB, undef, $key, my $data;
2330
2331 $! ? ()
2332 : $data
2333 }
2334}
2335
2336sub db_put($$$) {
2337 BDB::dbreq_pri 4;
2338 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2339}
2340
2341=item cf::cache $id => [$paths...], $processversion => $process
2342
2343Generic caching function that returns the value of the resource $id,
2344caching and regenerating as required.
2345
2346This function can block.
2347
2348=cut
2349
2350sub cache {
2351 my ($id, $src, $processversion, $process) = @_;
2352
2353 my $meta =
2354 join "\x00",
2355 $processversion,
2356 map {
2357 aio_stat $_
2358 and Carp::croak "$_: $!";
2359
2360 ($_, (stat _)[7,9])
2361 } @$src;
2362
2363 my $dbmeta = db_get cache => "$id/meta";
2364 if ($dbmeta ne $meta) {
2365 # changed, we may need to process
2366
2367 my @data;
2368 my $md5;
2369
2370 for (0 .. $#$src) {
2371 0 <= aio_load $src->[$_], $data[$_]
2372 or Carp::croak "$src->[$_]: $!";
2373 }
2374
2375 # if processing is expensive, check
2376 # checksum first
2377 if (1) {
2378 $md5 =
2379 join "\x00",
2380 $processversion,
2381 map {
2382 Coro::cede;
2383 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2384 } 0.. $#$src;
2385
2386
2387 my $dbmd5 = db_get cache => "$id/md5";
2388 if ($dbmd5 eq $md5) {
2389 db_put cache => "$id/meta", $meta;
2390
2391 return db_get cache => "$id/data";
2392 }
2393 }
2394
2395 my $t1 = Time::HiRes::time;
2396 my $data = $process->(\@data);
2397 my $t2 = Time::HiRes::time;
2398
2399 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2400
2401 db_put cache => "$id/data", $data;
2402 db_put cache => "$id/md5" , $md5;
2403 db_put cache => "$id/meta", $meta;
2404
2405 return $data;
2406 }
2407
2408 db_get cache => "$id/data"
2409}
2410
2411=item fork_call { }, $args
2412
2413Executes the given code block with the given arguments in a seperate
2414process, returning the results. Everything must be serialisable with
2415Coro::Storable. May, of course, block. Note that the executed sub may
2416never block itself or use any form of Event handling.
2417
2418=cut
2419
2420sub fork_call(&@) {
2421 my ($cb, @args) = @_;
2422
2423# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2424# or die "socketpair: $!";
2425 pipe my $fh1, my $fh2
2426 or die "pipe: $!";
2427
2428 if (my $pid = fork) {
2429 close $fh2;
2430
2431 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2432 $res = Coro::Storable::thaw $res;
2433
2434 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2435
2436 die $$res unless "ARRAY" eq ref $res;
2437
2438 return wantarray ? @$res : $res->[-1];
2439 } else {
2440 local $SIG{__WARN__};
2441 eval {
2442 local $SIG{__DIE__};
2443 close $fh1;
2444
2445 my @res = eval { $cb->(@args) };
2446 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2447 };
2448
2449 warn $@ if $@;
2450 _exit 0;
2451 }
2452}
2453
2454
2455
2456#############################################################################
2457# the server's init and main functions 2859# the server's init and main functions
2458 2860
2459sub load_facedata($) { 2861sub load_facedata($) {
2460 my ($path) = @_; 2862 my ($path) = @_;
2863
2864 # HACK to clear player env face cache, we need some signal framework
2865 # for this (global event?)
2866 %ext::player_env::MUSIC_FACE_CACHE = ();
2867
2868 my $enc = JSON::XS->new->utf8->canonical->relaxed;
2461 2869
2462 warn "loading facedata from $path\n"; 2870 warn "loading facedata from $path\n";
2463 2871
2464 my $facedata; 2872 my $facedata;
2465 0 < aio_load $path, $facedata 2873 0 < aio_load $path, $facedata
2468 $facedata = Coro::Storable::thaw $facedata; 2876 $facedata = Coro::Storable::thaw $facedata;
2469 2877
2470 $facedata->{version} == 2 2878 $facedata->{version} == 2
2471 or cf::cleanup "$path: version mismatch, cannot proceed."; 2879 or cf::cleanup "$path: version mismatch, cannot proceed.";
2472 2880
2881 # patch in the exptable
2882 $facedata->{resource}{"res/exp_table"} = {
2883 type => FT_RSRC,
2884 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2885 };
2886 cf::cede_to_tick;
2887
2473 { 2888 {
2474 my $faces = $facedata->{faceinfo}; 2889 my $faces = $facedata->{faceinfo};
2475 2890
2476 while (my ($face, $info) = each %$faces) { 2891 while (my ($face, $info) = each %$faces) {
2477 my $idx = (cf::face::find $face) || cf::face::alloc $face; 2892 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2478 cf::face::set $idx, $info->{visibility}, $info->{magicmap}; 2893 cf::face::set_visibility $idx, $info->{visibility};
2894 cf::face::set_magicmap $idx, $info->{magicmap};
2479 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32}; 2895 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2480 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64}; 2896 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2481 Coro::cede; 2897
2898 cf::cede_to_tick;
2482 } 2899 }
2483 2900
2484 while (my ($face, $info) = each %$faces) { 2901 while (my ($face, $info) = each %$faces) {
2485 next unless $info->{smooth}; 2902 next unless $info->{smooth};
2486 my $idx = cf::face::find $face 2903 my $idx = cf::face::find $face
2487 or next; 2904 or next;
2488 if (my $smooth = cf::face::find $info->{smooth}) { 2905 if (my $smooth = cf::face::find $info->{smooth}) {
2906 cf::face::set_smooth $idx, $smooth;
2489 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel}; 2907 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2490 } else { 2908 } else {
2491 warn "smooth face '$info->{smooth}' not found for face '$face'"; 2909 warn "smooth face '$info->{smooth}' not found for face '$face'";
2492 } 2910 }
2493 Coro::cede; 2911
2912 cf::cede_to_tick;
2494 } 2913 }
2495 } 2914 }
2496 2915
2497 { 2916 {
2498 my $anims = $facedata->{animinfo}; 2917 my $anims = $facedata->{animinfo};
2499 2918
2500 while (my ($anim, $info) = each %$anims) { 2919 while (my ($anim, $info) = each %$anims) {
2501 cf::anim::set $anim, $info->{frames}, $info->{facings}; 2920 cf::anim::set $anim, $info->{frames}, $info->{facings};
2502 Coro::cede; 2921 cf::cede_to_tick;
2503 } 2922 }
2504 2923
2505 cf::anim::invalidate_all; # d'oh 2924 cf::anim::invalidate_all; # d'oh
2506 } 2925 }
2507 2926
2927 {
2928 # TODO: for gcfclient pleasure, we should give resources
2929 # that gcfclient doesn't grok a >10000 face index.
2930 my $res = $facedata->{resource};
2931
2932 my $soundconf = delete $res->{"res/sound.conf"};
2933
2934 while (my ($name, $info) = each %$res) {
2935 my $idx = (cf::face::find $name) || cf::face::alloc $name;
2936 my $data;
2937
2938 if ($info->{type} & 1) {
2939 # prepend meta info
2940
2941 my $meta = $enc->encode ({
2942 name => $name,
2943 %{ $info->{meta} || {} },
2944 });
2945
2946 $data = pack "(w/a*)*", $meta, $info->{data};
2947 } else {
2948 $data = $info->{data};
2949 }
2950
2951 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
2952 cf::face::set_type $idx, $info->{type};
2953
2954 cf::cede_to_tick;
2955 }
2956
2957 if ($soundconf) {
2958 $soundconf = $enc->decode (delete $soundconf->{data});
2959
2960 for (0 .. SOUND_CAST_SPELL_0 - 1) {
2961 my $sound = $soundconf->{compat}[$_]
2962 or next;
2963
2964 my $face = cf::face::find "sound/$sound->[1]";
2965 cf::sound::set $sound->[0] => $face;
2966 cf::sound::old_sound_index $_, $face; # gcfclient-compat
2967 }
2968
2969 while (my ($k, $v) = each %{$soundconf->{event}}) {
2970 my $face = cf::face::find "sound/$v";
2971 cf::sound::set $k => $face;
2972 }
2973 }
2974 }
2975
2508 1 2976 1
2509} 2977}
2510 2978
2979register_exticmd fx_want => sub {
2980 my ($ns, $want) = @_;
2981
2982 while (my ($k, $v) = each %$want) {
2983 $ns->fx_want ($k, $v);
2984 }
2985};
2986
2511sub reload_regions { 2987sub reload_regions {
2988 # HACK to clear player env face cache, we need some signal framework
2989 # for this (global event?)
2990 %ext::player_env::MUSIC_FACE_CACHE = ();
2991
2512 load_resource_file "$MAPDIR/regions" 2992 load_resource_file "$MAPDIR/regions"
2513 or die "unable to load regions file\n"; 2993 or die "unable to load regions file\n";
2994
2995 for (cf::region::list) {
2996 $_->{match} = qr/$_->{match}/
2997 if exists $_->{match};
2998 }
2514} 2999}
2515 3000
2516sub reload_facedata { 3001sub reload_facedata {
2517 load_facedata "$DATADIR/facedata" 3002 load_facedata "$DATADIR/facedata"
2518 or die "unable to load facedata\n"; 3003 or die "unable to load facedata\n";
2519} 3004}
2520 3005
2521sub reload_archetypes { 3006sub reload_archetypes {
2522 load_resource_file "$DATADIR/archetypes" 3007 load_resource_file "$DATADIR/archetypes"
2523 or die "unable to load archetypes\n"; 3008 or die "unable to load archetypes\n";
3009 #d# NEED to laod twice to resolve forward references
3010 # this really needs to be done in an extra post-pass
3011 # (which needs to be synchronous, so solve it differently)
3012 load_resource_file "$DATADIR/archetypes"
3013 or die "unable to load archetypes\n";
2524} 3014}
2525 3015
2526sub reload_treasures { 3016sub reload_treasures {
2527 load_resource_file "$DATADIR/treasures" 3017 load_resource_file "$DATADIR/treasures"
2528 or die "unable to load treasurelists\n"; 3018 or die "unable to load treasurelists\n";
2531sub reload_resources { 3021sub reload_resources {
2532 warn "reloading resource files...\n"; 3022 warn "reloading resource files...\n";
2533 3023
2534 reload_regions; 3024 reload_regions;
2535 reload_facedata; 3025 reload_facedata;
3026 #reload_archetypes;#d#
2536 reload_archetypes; 3027 reload_archetypes;
2537 reload_treasures; 3028 reload_treasures;
2538 3029
2539 warn "finished reloading resource files\n"; 3030 warn "finished reloading resource files\n";
2540} 3031}
2541 3032
2542sub init { 3033sub init {
2543 reload_resources; 3034 reload_resources;
2544} 3035}
2545 3036
2546sub cfg_load { 3037sub reload_config {
2547 open my $fh, "<:utf8", "$CONFDIR/config" 3038 open my $fh, "<:utf8", "$CONFDIR/config"
2548 or return; 3039 or return;
2549 3040
2550 local $/; 3041 local $/;
2551 *CFG = YAML::Syck::Load <$fh>; 3042 *CFG = YAML::Syck::Load <$fh>;
2571 (async { 3062 (async {
2572 Event::one_event; 3063 Event::one_event;
2573 })->prio (Coro::PRIO_MAX); 3064 })->prio (Coro::PRIO_MAX);
2574 }; 3065 };
2575 3066
2576 cfg_load; 3067 reload_config;
2577 db_init; 3068 db_init;
2578 load_extensions; 3069 load_extensions;
2579 3070
2580 $TICK_WATCHER->start; 3071 $TICK_WATCHER->start;
2581 Event::loop; 3072 Event::loop;
2597 }, 3088 },
2598 ); 3089 );
2599 } 3090 }
2600} 3091}
2601 3092
3093sub write_runtime {
3094 my $runtime = "$LOCALDIR/runtime";
3095
3096 # first touch the runtime file to show we are still running:
3097 # the fsync below can take a very very long time.
3098
3099 IO::AIO::aio_utime $runtime, undef, undef;
3100
3101 my $guard = cf::lock_acquire "write_runtime";
3102
3103 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
3104 or return;
3105
3106 my $value = $cf::RUNTIME + 90 + 10;
3107 # 10 is the runtime save interval, for a monotonic clock
3108 # 60 allows for the watchdog to kill the server.
3109
3110 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3111 and return;
3112
3113 # always fsync - this file is important
3114 aio_fsync $fh
3115 and return;
3116
3117 # touch it again to show we are up-to-date
3118 aio_utime $fh, undef, undef;
3119
3120 close $fh
3121 or return;
3122
3123 aio_rename "$runtime~", $runtime
3124 and return;
3125
3126 warn "runtime file written.\n";
3127
3128 1
3129}
3130
2602sub emergency_save() { 3131sub emergency_save() {
2603 my $freeze_guard = cf::freeze_mainloop; 3132 my $freeze_guard = cf::freeze_mainloop;
2604 3133
2605 warn "enter emergency perl save\n"; 3134 warn "enter emergency perl save\n";
2606 3135
2681 %EXT_CORO = (); 3210 %EXT_CORO = ();
2682 3211
2683 warn "removing commands"; 3212 warn "removing commands";
2684 %COMMAND = (); 3213 %COMMAND = ();
2685 3214
2686 warn "removing ext commands"; 3215 warn "removing ext/exti commands";
2687 %EXTCMD = (); 3216 %EXTCMD = ();
3217 %EXTICMD = ();
2688 3218
2689 warn "unloading/nuking all extensions"; 3219 warn "unloading/nuking all extensions";
2690 for my $pkg (@EXTS) { 3220 for my $pkg (@EXTS) {
2691 warn "... unloading $pkg"; 3221 warn "... unloading $pkg";
2692 3222
2735 warn "reloading cf.pm"; 3265 warn "reloading cf.pm";
2736 require cf; 3266 require cf;
2737 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3267 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2738 3268
2739 warn "loading config and database again"; 3269 warn "loading config and database again";
2740 cf::cfg_load; 3270 cf::reload_config;
2741 3271
2742 warn "loading extensions"; 3272 warn "loading extensions";
2743 cf::load_extensions; 3273 cf::load_extensions;
2744 3274
2745 warn "reattaching attachments to objects/players"; 3275 warn "reattaching attachments to objects/players";
2810 my $signal = new Coro::Signal; 3340 my $signal = new Coro::Signal;
2811 push @WAIT_FOR_TICK_BEGIN, $signal; 3341 push @WAIT_FOR_TICK_BEGIN, $signal;
2812 $signal->wait; 3342 $signal->wait;
2813} 3343}
2814 3344
3345 my $min = 1e6;#d#
3346 my $avg = 10;
2815$TICK_WATCHER = Event->timer ( 3347$TICK_WATCHER = Event->timer (
2816 reentrant => 0, 3348 reentrant => 0,
2817 parked => 1, 3349 parked => 1,
2818 prio => 0, 3350 prio => 0,
2819 at => $NEXT_TICK || $TICK, 3351 at => $NEXT_TICK || $TICK,
2823 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3355 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2824 unless ++$bug_warning > 10; 3356 unless ++$bug_warning > 10;
2825 return; 3357 return;
2826 } 3358 }
2827 3359
2828 $NOW = Event::time; 3360 $NOW = $tick_start = Event::time;
2829 3361
2830 cf::server_tick; # one server iteration 3362 cf::server_tick; # one server iteration
3363
3364 0 && sync_job {#d#
3365 for(1..10) {
3366 my $t = Event::time;
3367 my $map = my $map = new_from_path cf::map "/tmp/x.map"
3368 or die;
3369
3370 $map->width (50);
3371 $map->height (50);
3372 $map->alloc;
3373 $map->_load_objects ("/tmp/x.map", 1);
3374 my $t = Event::time - $t;
3375
3376 #next unless $t < 0.0013;#d#
3377 if ($t < $min) {
3378 $min = $t;
3379 }
3380 $avg = $avg * 0.99 + $t * 0.01;
3381 }
3382 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
3383 exit 0;
3384 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
3385 };
2831 3386
2832 $RUNTIME += $TICK; 3387 $RUNTIME += $TICK;
2833 $NEXT_TICK += $TICK; 3388 $NEXT_TICK += $TICK;
2834 3389
2835 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3390 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2841 } 3396 }
2842 3397
2843# my $AFTER = Event::time; 3398# my $AFTER = Event::time;
2844# warn $AFTER - $NOW;#d# 3399# warn $AFTER - $NOW;#d#
2845 3400
3401 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3402 $sig->send;
3403 }
3404 while (my $sig = shift @WAIT_FOR_TICK) {
3405 $sig->send;
3406 }
3407
3408 $NOW = Event::time;
3409
2846 # if we are delayed by four ticks or more, skip them all 3410 # if we are delayed by four ticks or more, skip them all
2847 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3411 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2848 3412
2849 $TICK_WATCHER->at ($NEXT_TICK); 3413 $TICK_WATCHER->at ($NEXT_TICK);
2850 $TICK_WATCHER->start; 3414 $TICK_WATCHER->start;
2851 3415
2852 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3416 $LOAD = ($NOW - $tick_start) / $TICK;
2853 $sig->send; 3417 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2854 }
2855 while (my $sig = shift @WAIT_FOR_TICK) {
2856 $sig->send;
2857 }
2858 3418
2859 _post_tick; 3419 _post_tick;
3420
3421
2860 }, 3422 },
2861); 3423);
2862 3424
2863{ 3425{
2864 BDB::max_poll_time $TICK * 0.1; 3426 BDB::max_poll_time $TICK * 0.1;
2923 prio => 6, 3485 prio => 6,
2924 cb => \&IO::AIO::poll_cb, 3486 cb => \&IO::AIO::poll_cb,
2925 ); 3487 );
2926} 3488}
2927 3489
3490my $_log_backtrace;
3491
2928sub _log_backtrace { 3492sub _log_backtrace {
2929 my ($msg, @addr) = @_; 3493 my ($msg, @addr) = @_;
2930 3494
3495 $msg =~ s/\n//;
3496
3497 # limit the # of concurrent backtraces
3498 if ($_log_backtrace < 2) {
3499 ++$_log_backtrace;
2931 async { 3500 async {
2932 my @bt = fork_call { 3501 my @bt = fork_call {
2933 @addr = map { sprintf "%x", $_ } @addr; 3502 @addr = map { sprintf "%x", $_ } @addr;
3503 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2934 open my $fh, "exec addr2line -C -f -i -e \Q$^X\E @addr 2>&1 |" 3504 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2935 or die "addr2line: $!"; 3505 or die "addr2line: $!";
2936 3506
2937 my @funcs; 3507 my @funcs;
2938 my @res = <$fh>; 3508 my @res = <$fh>;
2939 chomp for @res; 3509 chomp for @res;
2940 while (@res) { 3510 while (@res) {
2941 my ($func, $line) = splice @res, 0, 2, (); 3511 my ($func, $line) = splice @res, 0, 2, ();
2942 push @funcs, "[$func] $line"; 3512 push @funcs, "[$func] $line";
3513 }
3514
3515 @funcs
2943 } 3516 };
2944 3517
2945 @funcs 3518 LOG llevInfo, "[ABT] $msg\n";
3519 LOG llevInfo, "[ABT] $_\n" for @bt;
3520 --$_log_backtrace;
2946 }; 3521 };
2947 3522 } else {
2948 $msg =~ s/\n//;
2949
2950 LOG llevInfo, "[ABT] $msg\n"; 3523 LOG llevInfo, "[ABT] $msg\n";
2951 LOG llevInfo, "[ABT] $_\n" for @bt; 3524 LOG llevInfo, "[ABT] [suppressed]\n";
2952 }; 3525 }
2953} 3526}
2954 3527
2955# load additional modules 3528# load additional modules
2956use cf::pod; 3529use cf::pod;
2957 3530

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