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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.155 by root, Tue Jan 9 21:32:42 2007 UTC vs.
Revision 1.271 by root, Fri Jun 1 06:04:08 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		91
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
61		98
62	binmode STDOUT;	99	binmode STDOUT;
63	binmode STDERR;	100	binmode STDERR;
64		101
65	# read virtual server time, if available	102	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
70	}	107	}
71		108
72	mkdir cf::localdir;	109	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		111
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
81		115
82	#############################################################################	116	#############################################################################
83		117
84	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
85		119
…		…
92	=item $cf::RUNTIME	126	=item $cf::RUNTIME
93		127
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	129	every server tick.
96		130
97	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		134
99	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
101		139
102	=item $cf::NOW	140	=item $cf::NOW
103		141
104	The time of the last (current) server tick.	142	The time of the last (current) server tick.
105		143
106	=item $cf::TICK	144	=item $cf::TICK
107		145
108	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
109		157
110	=item %cf::CFG	158	=item %cf::CFG
111		159
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	161	from wherever your confdir points to.
114		162
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		164
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.
121		168
122	=back	169	=back
123		170
124	=cut	171	=cut
125		172
126	BEGIN {	173	BEGIN {
127	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	175	my $msg = join "", @_;
129	utf8::encode $msg;
130		176
131	$msg .= "\n"	177	$msg .= "\n"
132	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
133		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
134	LOG llevError, $msg;	183	LOG llevError, $msg;
135	};	184	};
136	}	185	}
137		186
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
156	}	205	}
157		206
158	$Event::DIED = sub {	207	$Event::DIED = sub {
159	warn "error in event callback: @_";	208	warn "error in event callback: @_";
160	};	209	};
161
162	my %ext_pkg;
163	my @exts;
164	my @hook;
165		210
166	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
167		212
168	=over 4	213	=over 4
169		214
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	234	$d
190	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
191	}	236	}
192		237
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
194		239
195	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
196		241
197	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
198		243
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
207		245
208	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		247
217	=item cf::lock_wait $string	248	=item cf::lock_wait $string
218		249
219	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
220		251
…		…
226	returned.	257	returned.
227		258
228	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
230		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
231	=cut	266	=cut
232		267
233	our %LOCK;	268	our %LOCK;
234		269
235	sub lock_wait($) {	270	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
256	}	291	}
257	}	292	}
258		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
259	sub freeze_mainloop {	300	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
261		302
262	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
263	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
264	$guard	307	$guard
265	}	308	}
266		309
267	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
289		332
290	sub sync_job(&) {	333	sub sync_job(&) {
291	my ($job) = @_;	334	my ($job) = @_;
292		335
293	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
294	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
296		341
297	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
309		354
310	while ($busy) {	355	while ($busy) {
311	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
312	}	357	}
313		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
314	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
315	} else {	367	} else {
316	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
317		369
318	$job->()	370	$job->()
319	}	371	}
320	}	372	}
321		373
322	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
323		375
324	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	377	extension calling this is being unloaded.
326		378
327	=cut	379	=cut
328		380
329	sub async_ext(&) {	381	sub async_ext(&) {
…		…
338		390
339	$coro	391	$coro
340	}	392	}
341		393
342	sub write_runtime {	394	sub write_runtime {
343	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
344		403
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
346	or return;	405	or return;
347		406
		407	my $value = $cf::RUNTIME + 90 + 10;
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	408	# 10 is the runtime save interval, for a monotonic clock
		409	# 60 allows for the watchdog to kill the server.
		410
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;	412	and return;
351		413
		414	# always fsync - this file is important
352	aio_fsync $fh	415	aio_fsync $fh
353	and return;	416	and return;
354		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
355	close $fh	421	close $fh
356	or return;	422	or return;
357		423
358	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
359	and return;	425	and return;
360		426
		427	warn "runtime file written.\n";#d#
		428
361	1	429	1
362	}	430	}
363		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		441	}
		442
364	=back	443	=back
365		444
366	=cut	445	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		446
490	#############################################################################	447	#############################################################################
491		448
492	=head2 ATTACHABLE OBJECTS	449	=head2 ATTACHABLE OBJECTS
493		450
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	576	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	577	our @CB_MAP = ();
621		578
622	my %attachment;	579	my %attachment;
623		580
		581	sub cf::attachable::thawer_merge {
		582	# simply override everything except _meta
		583	local $_[0]{_meta};
		584	%{$_[0]} = %{$_[1]};
		585	}
		586
624	sub _attach_cb($$$$) {	587	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	588	my ($registry, $event, $prio, $cb) = @_;
626		589
627	use sort 'stable';	590	use sort 'stable';
628		591
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
663		626
664	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		631
669	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	633	my $pkg = shift @arg;
671		634
672	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
713	if (ref $_[0]) {	676	if (ref $_[0]) {
714	_object_attach @_;	677	_object_attach @_;
715	} else {	678	} else {
716	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
717	}	680	}
		681	_recalc_want;
718	};	682	};
719		683
720	# all those should be optimised	684	# all those should be optimised
721	sub cf::attachable::detach {	685	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
726	reattach ($obj);	690	reattach ($obj);
727	} else {	691	} else {
728	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
729	}	693	}
		694	_recalc_want;
730	};	695	};
731		696
732	sub cf::attachable::attached {	697	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
734		699
…		…
799	# object support	764	# object support
800		765
801	sub reattach {	766	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		771
805	my $registry = $obj->registry;	772	my $registry = $obj->registry;
806		773
807	@$registry = ();	774	@$registry = ();
808		775
…		…
855	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
856		823
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	828	close $fh;
862		829
863	if (@$objs) {	830	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	836	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
871	}	838	}
872	} else {	839	} else {
873	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
940	=cut	907	=cut
941		908
942	sub register_extcmd {	909	sub register_extcmd {
943	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
944		911
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
949	}	913	}
950		914
951	cf::player->attach (	915	cf::player->attach (
952	on_command => sub {	916	on_command => sub {
953	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
966		930
967	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
968		932
969	if (ref $msg) {	933	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	937	}
974	}	938	}
975	} else {	939	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		942
979	cf::override;	943	cf::override;
980	},	944	},
981	);	945	);
982		946
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	947	sub load_extension {
990	my ($path) = @_;	948	my ($path) = @_;
991		949
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;	951	my $base = $1;
994	my $pkg = $1;	952	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
997		955
998	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
999		957
1000	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
1001	or die "$path: $!";	959	or die "$path: $!";
1002		960
1003	my $source =	961	my $source =
1004	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
1007	. "\n};\n1";	965	. "\n};\n1";
1008		966
1009	eval $source	967	unless (eval $source) {
1010	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
1011	: "extension disabled.\n";	969	: "extension disabled.\n";
1012		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1013	push @exts, $pkg;	971	warn $@;
1014	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
1015		973	exit 1;
1016	# no strict 'refs';	974	}
1017	# @{"$pkg\::ISA"} = ext::;	975	die $@;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }	976	}
1032		977
1033	# remove commands	978	push @EXTS, $pkg;
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	979	}
1058		980
1059	sub load_extensions {	981	sub load_extensions {
1060	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	983	next unless -r $ext;
…		…
1065	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1066	}	988	}
1067	}	989	}
1068		990
1069	#############################################################################	991	#############################################################################
1070	# load/save/clean perl data associated with a map
1071
1072	*cf::mapsupport::on_clean = sub {
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		992
1085	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1086		994
1087	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1088		996
…		…
1101	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1102		1010
1103	=cut	1011	=cut
1104		1012
1105	sub playerdir($) {	1013	sub playerdir($) {
1106	cf::localdir	1014	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1016	}
1112		1017
1113	sub path($) {	1018	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1020
1116	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1117	}	1022	}
1118		1023
1119	sub find_active($) {	1024	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1124		1029
1125	sub exists($) {	1030	sub exists($) {
1126	my ($login) = @_;	1031	my ($login) = @_;
1127		1032
1128	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1130	}	1035	}
1131		1036
1132	sub find($) {	1037	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1039	my $login = $_[0];
1135		1040
1136	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1137		1042
1138	$cf::PLAYER{$_[0]} || do {	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
1139	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1140	or return;	1052	or return;
1141	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1142	}	1054	}
1143	}	1055	}
…		…
1180		1092
1181	=cut	1093	=cut
1182		1094
1183	sub quit_character {	1095	sub quit_character {
1184	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1185		1099
1186	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1102
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1199	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
1200	}	1134	}
1201		1135
1202	=item cf::player::list_logins	1136	=item cf::player::list_logins
1203		1137
1204	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1206		1140
1207	=cut	1141	=cut
1208		1142
1209	sub list_logins {	1143	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1145	or return [];
1212		1146
1213	my @logins;	1147	my @logins;
1214		1148
1215	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1224	\@logins	1158	\@logins
1225	}	1159	}
1226		1160
1227	=item $player->maps	1161	=item $player->maps
1228		1162
1229	Returns an arrayref of cf::path's of all maps that are private for this	1163	Returns an arrayref of map paths that are private for this
1230	player. May block.	1164	player. May block.
1231		1165
1232	=cut	1166	=cut
1233		1167
1234	sub maps($) {	1168	sub maps($) {
1235	my ($pl) = @_;	1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1172
1237	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1238	or return;	1174	or return;
1239		1175
1240	my @paths;	1176	my @paths;
1241		1177
1242	for (@$files) {	1178	for (@$files) {
1243	utf8::decode $_;	1179	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1181	next unless /^$PATH_SEP/o;
1246		1182
1247	s/$PATH_SEP/\//g;	1183	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1184	}
1250		1185
1251	\@paths	1186	\@paths
1252	}	1187	}
1253		1188
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1255		1190
1256	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1257		1192
1258	=cut	1193	=cut
1259		1194
1260	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1262		1197
1263	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1264		1199
1265	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1266	}	1201	}
1267		1202
1268	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1269		1243
1270	=back	1244	=back
1271
1272		1245
1273	=head3 cf::map	1246	=head3 cf::map
1274		1247
1275	=over 4	1248	=over 4
1276		1249
…		…
1279	package cf::map;	1252	package cf::map;
1280		1253
1281	use Fcntl;	1254	use Fcntl;
1282	use Coro::AIO;	1255	use Coro::AIO;
1283		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1284	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1286		1263
1287	sub generate_random_map {	1264	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1267	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1304	}	1409	}
1305		1410
1306	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1307	# all maps in C++...	1412	# all maps in C++...
1308	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1310		1415
1311	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1313	}	1418	}
1314		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1315	sub try_load_header($) {	1428	sub load_header_from($) {
1316	my ($path) = @_;	1429	my ($self, $path) = @_;
1317		1430
1318	utf8::encode $path;	1431	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1320	or return;	1436	or return;
1321		1437
1322	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1323	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1324		1484
1325	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1326	$map->path ($path);	1486	unless $self->default_region;
1327		1487
1328	$map->load_header ($path)	1488	1
1329	or return;
1330
1331	$map->{load_path} = $path;
1332
1333	$map
1334	}	1489	}
1335		1490
1336	sub find;	1491	sub find;
1337	sub find {	1492	sub find {
1338	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1339		1494
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1496
1345	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1346		1498
1347	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1349		1501	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1502	or return;
1369		1503
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1382		1505
1383	Coro::cede;	1506	$map->load_header
		1507	or return;
1384		1508
1385	if ($map->should_reset) {	1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1386	$map->reset;	1512	$map->reset;
1387	undef $guard;	1513	undef $guard;
1388	$map = find $path	1514	return find $path;
1389	or return;
1390	}	1515	}
1391		1516
1392	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1393	}	1518	}
1394	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1395		1523
1396	sub load {	1524	sub load {
1397	my ($self) = @_;	1525	my ($self) = @_;
1398		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1399	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1401		1533
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1535
1404	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1405		1537
1406	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1407	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1544	or return;
1409		1545
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1547	if delete $self->{load_original};
1412		1548
1413	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1550	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1552	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1418	}	1554	}
1419	}	1555	}
1420		1556
1421	Coro::cede;	1557	Coro::cede;
1422
1423	# now do the right thing for maps	1558	# now do the right thing for maps
1424	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1436	$self->activate;	1571	$self->activate;
1437	}	1572	}
1438		1573
1439	Coro::cede;
1440
1441	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
1442	}	1611	}
1443		1612
1444	sub find_sync {	1613	sub find_sync {
1445	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1446		1615
1447	cf::sync_job { cf::map::find $path, $origin }	1616	cf::sync_job { find $path, $origin }
1448	}	1617	}
1449		1618
1450	sub do_load_sync {	1619	sub do_load_sync {
1451	my ($map) = @_;	1620	my ($map) = @_;
1452		1621
1453	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1454	}	1623	}
1455		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
		1653	}
		1654
1456	sub save {	1655	sub save {
1457	my ($self) = @_;	1656	my ($self) = @_;
1458		1657
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1460		1659
1461	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1462		1661
1463	return unless $self->dirty;	1662	return unless $self->dirty;
1464		1663
1465	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		1666
1468	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1469		1668
1470	return if $self->{deny_save};	1669	return if $self->{deny_save};
1471		1670
…		…
1474	cf::async {	1673	cf::async {
1475	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1476	};	1675	};
1477		1676
1478	if ($uniq) {	1677	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	1680	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	1682	}
1484	}	1683	}
1485		1684
1486	sub swap_out {	1685	sub swap_out {
1487	my ($self) = @_;	1686	my ($self) = @_;
…		…
1501		1700
1502	sub reset_at {	1701	sub reset_at {
1503	my ($self) = @_;	1702	my ($self) = @_;
1504		1703
1505	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1507	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1508		1707
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		1710
…		…
1516	my ($self) = @_;	1715	my ($self) = @_;
1517		1716
1518	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1519	}	1718	}
1520		1719
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	1720	sub reset {
1543	my ($self) = @_;	1721	my ($self) = @_;
1544		1722
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		1724
1547	return if $self->players;	1725	return if $self->players;
1548	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1549		1727
1550	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1551		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1552	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1553		1743
1554	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1555		1745
1556	$self->unlink_save;	1746	$self->unlink_save;
1557	$self->destroy;	1747	$self->destroy;
…		…
1560	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1561		1751
1562	sub nuke {	1752	sub nuke {
1563	my ($self) = @_;	1753	my ($self) = @_;
1564		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1568	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1569	}	1768	}
1570		1769
1571	sub customise_for {	1770	=item cf::map::unique_maps
1572	my ($map, $ob) = @_;
1573		1771
1574	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1576	}
1577		1774
1578	$map	1775	=cut
		1776
		1777	sub unique_maps() {
		1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
		1780
		1781	my @paths;
		1782
		1783	for (@$files) {
		1784	utf8::decode $_;
		1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
		1789	}
		1790
		1791	\@paths
1579	}	1792	}
1580		1793
1581	package cf;	1794	package cf;
1582		1795
1583	=back	1796	=back
…		…
1655		1868
1656	=item $player_object->enter_link	1869	=item $player_object->enter_link
1657		1870
1658	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1659		1872
1660	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1662		1875
		1876	Will never block.
		1877
1663	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1664		1879
1665	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	1883	fails, to the emergency map position.
1669		1884
1670	Might block.	1885	Might block.
1671		1886
1672	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1673		1898
1674	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1675	my ($self) = @_;	1900	my ($self) = @_;
1676		1901
1677	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1678		1903
1679	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		1905
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1683		1908
1684	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	1910	}
1686		1911
1687	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1689		1916
1690	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1691		1918
1692	unless ($map) {	1919	unless ($map) {
1693	# restore original map position	1920	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1710		1937
1711	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1712		1940
1713	return unless $self->contr->active;	1941	return unless $self->contr->active;
1714	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1716	}	1946	}
1717		1947
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1751		1949
		1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
		1954
1752	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1753		1958
1754	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
1756		1961
1757	$path = new cf::path $path;	1962	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		1964
1760	$self->enter_link;	1965	$self->enter_link;
1761		1966
1762	(async {	1967	(async {
		1968	my $map = eval {
1763	my $map = cf::map::find $path->as_string;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
1765		1973	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	1974	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
1770		1977
		1978	$map
		1979	};
		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
		1984	}
		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1772	})->prio (1);	1990	})->prio (1);
1773	}	1991	}
1774		1992
1775	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1776		1994
…		…
1778		1996
1779	sub parse_random_map_params {	1997	sub parse_random_map_params {
1780	my ($spec) = @_;	1998	my ($spec) = @_;
1781		1999
1782	my $rmp = { # defaults	2000	my $rmp = { # defaults
1783	xsize => 10,	2001	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2002	ysize => (cf::rndm 15, 40),
		2003	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2004	#layout => string,
1785	};	2005	};
1786		2006
1787	for (split /\n/, $spec) {	2007	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2008	my ($k, $v) = split /\s+/, $_, 2;
1789		2009
…		…
1793	$rmp	2013	$rmp
1794	}	2014	}
1795		2015
1796	sub prepare_random_map {	2016	sub prepare_random_map {
1797	my ($exit) = @_;	2017	my ($exit) = @_;
		2018
		2019	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2020
1799	# all this does is basically replace the /! path by	2021	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2022	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2023	# that depends on the exit object
1802		2024
1803	my $rmp = parse_random_map_params $exit->msg;	2025	my $rmp = parse_random_map_params $exit->msg;
1804		2026
1805	if ($exit->map) {	2027	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2028	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2029	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2030	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2031	$rmp->{origin_y} = $exit->y;
1810	}	2032	}
1811		2033
1812	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1813		2035
1814	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
		2038	my $meta = "$RANDOMDIR/$md5.meta";
1816		2039
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
		2042	undef $fh;
		2043	aio_rename "$meta~", $meta;
1819		2044
1820	$exit->slaying ("?random/$md5");	2045	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2046	$exit->msg (undef);
1822	}	2047	}
1823	}	2048	}
1824		2049
1825	sub cf::object::player::enter_exit {	2050	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2051	my ($self, $exit) = @_;
1827		2052
1828	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
		2054
		2055	if ($exit->slaying eq "/!") {
		2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
		2059	cf::sync_job { prepare_random_map $exit };
		2060	}
		2061
		2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2063	my $hp = $exit->stats->hp;
		2064	my $sp = $exit->stats->sp;
1829		2065
1830	$self->enter_link;	2066	$self->enter_link;
1831		2067
1832	(async {	2068	(async {
1833	$self->deactivate_recursive; # just to be sure	2069	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2070	unless (eval {
1835	prepare_random_map $exit	2071	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2072
1841	1;	2073	1;
1842	}) {	2074	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2077	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2079
1848	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2081	$self->leave_link;
1850	}	2082	}
1851	})->prio (1);	2083	})->prio (1);
…		…
1864		2096
1865	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1867		2099
1868	utf8::encode $text;	2100	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2102	}
1871		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1872		2116
1873	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1874		2118
1875	Queues a query to the client, calling the given callback with	2119	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1905	# get handled first	2149	# get handled first
1906	my $queue = delete $ns->{query_queue}	2150	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2151	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2152
1909	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2155
1911	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
1912		2157
1913	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2159	if (@$queue) {
…		…
1972		2217
1973	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
1974		2219
1975	=pod	2220	=pod
1976		2221
1977	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
1978		2223
1979	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
1980	cf::object::player player	2225	cf::object::player player
1981	cf::player peaceful	2226	cf::player peaceful
1982	cf::map trigger	2227	cf::map trigger
…		…
2067	#############################################################################	2312	#############################################################################
2068		2313
2069	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
2070		2315
2071	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
2072	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2073	excludes objects.	2318	convert to/from binary).
2074		2319
2075	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
2076	using it, it should be unique.	2321	using it, it should be unique.
2077		2322
2078	=over 4	2323	=over 4
2079		2324
2080	=item $hashref = cf::db_get $family
2081
2082	Return a hashref for use by the extension C<$family>, which can be
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085
2086	=item $value = cf::db_get $family => $key	2325	=item $value = cf::db_get $family => $key
2087		2326
2088	Returns a single value from the database	2327	Returns a single value from the database.
2089
2090	=item cf::db_put $family => $hashref
2091
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094		2328
2095	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
2096		2330
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	Stores the given C<$value> in the family.
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107		2332
2108	=cut	2333	=cut
2109		2334
2110	our $DB;	2335	our $DB;
2111		2336
2112	{	2337	sub db_init {
2113	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
2114		2340
2115	sub db_load() {	2341	cf::sync_job {
2116	$DB = stat $path ? Storable::retrieve $path : { };	2342	eval {
2117	}	2343	$DB->set_flags (BDB::CHKSUM);
2118		2344
2119	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2120		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2121	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
2122	waitpid $pid, 0 if $pid;	2348	};
2123	if (0 == ($pid = fork)) {	2349	cf::cleanup "db_open(db): $@" if $@;
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}	2350	};
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	2351	}
		2352	}
2141		2353
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}
2146
2147	sub db_get($;$) {	2354	sub db_get($$) {
2148	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
2153	sub db_put($$;$) {	2365	sub db_put($$$) {
2154	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
2155	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2156	} else {	2368	}
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		2369
2162	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
2163	prio => 10000,	2371
2164	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
2165	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
2166	},	2402	}
2167	);	2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
2168	}	2482	}
2169		2483
2170	#############################################################################	2484	#############################################################################
2171	# the server's main()	2485	# the server's init and main functions
		2486
		2487	sub load_facedata($) {
		2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2509	Coro::cede;
		2510	}
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	next unless $info->{smooth};
		2514	my $idx = cf::face::find $face
		2515	or next;
		2516	if (my $smooth = cf::face::find $info->{smooth}) {
		2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2518	} else {
		2519	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2520	}
		2521	Coro::cede;
		2522	}
		2523	}
		2524
		2525	{
		2526	my $anims = $facedata->{animinfo};
		2527
		2528	while (my ($anim, $info) = each %$anims) {
		2529	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2530	Coro::cede;
		2531	}
		2532
		2533	cf::anim::invalidate_all; # d'oh
		2534	}
		2535
		2536	1
		2537	}
		2538
		2539	sub reload_regions {
		2540	load_resource_file "$MAPDIR/regions"
		2541	or die "unable to load regions file\n";
		2542	}
		2543
		2544	sub reload_facedata {
		2545	load_facedata "$DATADIR/facedata"
		2546	or die "unable to load facedata\n";
		2547	}
		2548
		2549	sub reload_archetypes {
		2550	load_resource_file "$DATADIR/archetypes"
		2551	or die "unable to load archetypes\n";
		2552	}
		2553
		2554	sub reload_treasures {
		2555	load_resource_file "$DATADIR/treasures"
		2556	or die "unable to load treasurelists\n";
		2557	}
		2558
		2559	sub reload_resources {
		2560	warn "reloading resource files...\n";
		2561
		2562	reload_regions;
		2563	reload_facedata;
		2564	reload_archetypes;
		2565	reload_treasures;
		2566
		2567	warn "finished reloading resource files\n";
		2568	}
		2569
		2570	sub init {
		2571	reload_resources;
		2572	}
2172		2573
2173	sub cfg_load {	2574	sub cfg_load {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	2576	or return;
2176		2577
2177	local $/;	2578	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
2179		2580
…		…
2193		2594
2194	sub main {	2595	sub main {
2195	# we must not ever block the main coroutine	2596	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	2597	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2598	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2599	(async {
2198	async { Event::one_event };	2600	Event::one_event;
		2601	})->prio (Coro::PRIO_MAX);
2199	};	2602	};
2200		2603
2201	cfg_load;	2604	cfg_load;
2202	db_load;	2605	db_init;
2203	load_extensions;	2606	load_extensions;
		2607
		2608	$TICK_WATCHER->start;
2204	Event::loop;	2609	Event::loop;
2205	}	2610	}
2206		2611
2207	#############################################################################	2612	#############################################################################
2208	# initialisation and cleanup	2613	# initialisation and cleanup
2209		2614
2210	# install some emergency cleanup handlers	2615	# install some emergency cleanup handlers
2211	BEGIN {	2616	BEGIN {
2212	for my $signal (qw(INT HUP TERM)) {	2617	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	2618	Event->signal (
		2619	reentrant => 0,
2214	data => WF_AUTOCANCEL,	2620	data => WF_AUTOCANCEL,
2215	signal => $signal,	2621	signal => $signal,
		2622	prio => 0,
2216	cb => sub {	2623	cb => sub {
2217	cf::cleanup "SIG$signal";	2624	cf::cleanup "SIG$signal";
2218	},	2625	},
2219	);	2626	);
2220	}	2627	}
2221	}	2628	}
2222		2629
2223	sub emergency_save {	2630	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	2631	my $freeze_guard = cf::freeze_mainloop;
2225		2632
2226	warn "enter emergency perl save\n";	2633	warn "enter emergency perl save\n";
2227		2634
2228	cf::sync_job {	2635	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	2636	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	2637	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	2638	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	2639	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	2640	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	2641	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	2642	$pl->valid or next;
2236	$pl->save;	2643	$pl->save;
…		…
2242	my $map = $cf::MAP{$path} or next;	2649	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	2650	$map->valid or next;
2244	$map->save;	2651	$map->save;
2245	}	2652	}
2246	warn "end emergency map save\n";	2653	warn "end emergency map save\n";
		2654
		2655	warn "begin emergency database checkpoint\n";
		2656	BDB::db_env_txn_checkpoint $DB_ENV;
		2657	warn "end emergency database checkpoint\n";
2247	};	2658	};
2248		2659
2249	warn "leave emergency perl save\n";	2660	warn "leave emergency perl save\n";
2250	}	2661	}
2251		2662
		2663	sub post_cleanup {
		2664	my ($make_core) = @_;
		2665
		2666	warn Carp::longmess "post_cleanup backtrace"
		2667	if $make_core;
		2668	}
		2669
2252	sub reload() {	2670	sub do_reload_perl() {
2253	# can/must only be called in main	2671	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	2673	warn "can only reload from main coroutine";
2256	return;	2674	return;
2257	}	2675	}
2258		2676
2259	warn "reloading...";	2677	warn "reloading...";
2260		2678
2261	my $guard = freeze_mainloop;	2679	warn "entering sync_job";
		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
2263		2685
2264	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
2265	# if anything goes wrong in here, we should simply crash as we already saved	2689	# if anything goes wrong in here, we should simply crash as we already saved
2266		2690
2267	# cancel all watchers	2691	warn "cancelling all WF_AUTOCANCEL watchers";
2268	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}	2694	}
2271		2695
		2696	warn "flushing outstanding aio requests";
		2697	for (;;) {
		2698	BDB::flush;
		2699	IO::AIO::flush;
		2700	Coro::cede;
		2701	last unless IO::AIO::nreqs || BDB::nreqs;
		2702	warn "iterate...";
		2703	}
		2704
		2705	++$RELOAD;
		2706
2272	# cancel all extension coros	2707	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	2709	%EXT_CORO = ();
2275		2710
2276	# unload all extensions	2711	warn "removing commands";
2277	for (@exts) {	2712	%COMMAND = ();
		2713
		2714	warn "removing ext commands";
		2715	%EXTCMD = ();
		2716
		2717	warn "unloading/nuking all extensions";
		2718	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	2719	warn "... unloading $pkg";
2279	unload_extension $_;	2720
		2721	if (my $cb = $pkg->can ("unload")) {
		2722	eval {
		2723	$cb->($pkg);
		2724	1
		2725	} or warn "$pkg unloaded, but with errors: $@";
2280	}	2726	}
2281		2727
		2728	warn "... nuking $pkg";
		2729	Symbol::delete_package $pkg;
		2730	}
		2731
2282	# unload all modules loaded from $LIBDIR	2732	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	2733	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2734	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		2735
2286	warn "removing <$k>";	2736	warn "... unloading $k";
2287	delete $INC{$k};	2737	delete $INC{$k};
2288		2738
2289	$k =~ s/\.pm$//;	2739	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	2740	$k =~ s/\//::/g;
2291		2741
…		…
2294	}	2744	}
2295		2745
2296	Symbol::delete_package $k;	2746	Symbol::delete_package $k;
2297	}	2747	}
2298		2748
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	2749	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		2752
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	2753	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
2312		2756
2313	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
2314	# and global variables created in xs	2758	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
2316		2760
2317	# reload cf.pm	2761	warn "unload completed, starting to reload now";
		2762
2318	warn "reloading cf.pm";	2763	warn "reloading cf.pm";
2319	require cf;	2764	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		2766
2322	# load config and database again	2767	warn "loading config and database again";
2323	cf::cfg_load;	2768	cf::cfg_load;
2324	cf::db_load;
2325		2769
2326	# load extensions
2327	warn "load extensions";	2770	warn "loading extensions";
2328	cf::load_extensions;	2771	cf::load_extensions;
2329		2772
2330	# reattach attachments to objects	2773	warn "reattaching attachments to objects/players";
2331	warn "reattach";	2774	_global_reattach; # objects, sockets
2332	_global_reattach;	2775	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	2776	reattach $_ for values %MAP;
2334	};	2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
2335		2779
2336	if ($@) {	2780	warn "leaving sync_job";
		2781
		2782	1
		2783	} or do {
2337	warn $@;	2784	warn $@;
2338	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
2339	exit 1;	2786	exit 1;
2340	}	2787	};
2341		2788
2342	warn "reloaded successfully";	2789	warn "reloaded";
2343	};	2790	};
2344		2791
2345	#############################################################################	2792	our $RELOAD_WATCHER; # used only during reload
2346		2793
2347	unless ($LINK_MAP) {	2794	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	2795	# doing reload synchronously and two reloads happen back-to-back,
		2796	# coro crashes during coro_state_free->destroy here.
2349		2797
2350	$LINK_MAP->width (41);	2798	$RELOAD_WATCHER ||= Event->timer (
2351	$LINK_MAP->height (41);	2799	reentrant => 0,
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,	2800	after => 0,
		2801	data => WF_AUTOCANCEL,
2360	cb => sub {	2802	cb => sub {
2361	$_[0]->w->cancel;	2803	do_reload_perl;
2362		2804	undef $RELOAD_WATCHER;
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});	2805	},
2381		2806	);
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	2807	}
2387
2388	register "<global>", __PACKAGE__;
2389		2808
2390	register_command "reload" => sub {	2809	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
2392		2811
2393	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	2813	$who->message ("reloading server.");
		2814	async { reload_perl };
2397	}	2815	}
2398	};	2816	};
2399		2817
2400	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
2401		2819
		2820	my $bug_warning = 0;
		2821
		2822	our @WAIT_FOR_TICK;
		2823	our @WAIT_FOR_TICK_BEGIN;
		2824
		2825	sub wait_for_tick {
		2826	return unless $TICK_WATCHER->is_active;
		2827	return if $Coro::current == $Coro::main;
		2828
		2829	my $signal = new Coro::Signal;
		2830	push @WAIT_FOR_TICK, $signal;
		2831	$signal->wait;
		2832	}
		2833
		2834	sub wait_for_tick_begin {
		2835	return unless $TICK_WATCHER->is_active;
		2836	return if $Coro::current == $Coro::main;
		2837
		2838	my $signal = new Coro::Signal;
		2839	push @WAIT_FOR_TICK_BEGIN, $signal;
		2840	$signal->wait;
		2841	}
		2842
		2843	my $min = 1e6;#d#
		2844	my $avg = 10;
2402	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
2403	reentrant => 0,	2846	reentrant => 0,
		2847	parked => 1,
2404	prio => 0,	2848	prio => 0,
2405	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
2406	data => WF_AUTOCANCEL,	2850	data => WF_AUTOCANCEL,
2407	cb => sub {	2851	cb => sub {
		2852	if ($Coro::current != $Coro::main) {
		2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2854	unless ++$bug_warning > 10;
		2855	return;
		2856	}
		2857
		2858	$NOW = $tick_start = Event::time;
		2859
2408	cf::server_tick; # one server iteration	2860	cf::server_tick; # one server iteration
		2861
		2862	0 && sync_job {#d#
		2863	for(1..10) {
		2864	my $t = Event::time;
		2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2866	or die;
		2867
		2868	$map->width (50);
		2869	$map->height (50);
		2870	$map->alloc;
		2871	$map->_load_objects ("/tmp/x.map", 1);
		2872	my $t = Event::time - $t;
		2873
		2874	#next unless $t < 0.0013;#d#
		2875	if ($t < $min) {
		2876	$min = $t;
		2877	}
		2878	$avg = $avg * 0.99 + $t * 0.01;
		2879	}
		2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2881	exit 0;
		2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2883	};
		2884
2409	$RUNTIME += $TICK;	2885	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
2411		2887
2412	$WAIT_FOR_TICK->broadcast;	2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2890	Coro::async_pool {
		2891	write_runtime
		2892	or warn "ERROR: unable to write runtime file: $!";
		2893	};
		2894	}
		2895
		2896	# my $AFTER = Event::time;
		2897	# warn $AFTER - $NOW;#d#
		2898
		2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2900	$sig->send;
		2901	}
		2902	while (my $sig = shift @WAIT_FOR_TICK) {
		2903	$sig->send;
		2904	}
		2905
		2906	$NOW = Event::time;
2414		2907
2415	# if we are delayed by four ticks or more, skip them all	2908	# if we are delayed by four ticks or more, skip them all
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2417		2910
2418	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;	2912	$TICK_WATCHER->start;
		2913
		2914	$LOAD = ($NOW - $tick_start) / $TICK;
		2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2916
		2917	_post_tick;
		2918
		2919
2420	},	2920	},
2421	);	2921	);
2422		2922
		2923	{
2423	IO::AIO::max_poll_time $TICK * 0.2;	2924	BDB::max_poll_time $TICK * 0.1;
2424		2925	$BDB_POLL_WATCHER = Event->io (
2425	Event->io (	2926	reentrant => 0,
2426	fd => IO::AIO::poll_fileno,	2927	fd => BDB::poll_fileno,
2427	poll => 'r',	2928	poll => 'r',
2428	prio => 5,	2929	prio => 0,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,	2930	data => WF_AUTOCANCEL,
2435	after => 0,	2931	cb => \&BDB::poll_cb,
2436	interval => 10,	2932	);
2437	cb => sub {	2933	BDB::min_parallel 8;
2438	(Coro::unblock_sub {	2934
2439	write_runtime	2935	BDB::set_sync_prepare {
2440	or warn "ERROR: unable to write runtime file: $!";	2936	my $status;
		2937	my $current = $Coro::current;
		2938	(
		2939	sub {
		2940	$status = $!;
		2941	$current->ready; undef $current;
		2942	},
		2943	sub {
		2944	Coro::schedule while defined $current;
		2945	$! = $status;
		2946	},
		2947	)
		2948	};
		2949
		2950	unless ($DB_ENV) {
		2951	$DB_ENV = BDB::db_env_create;
		2952
		2953	cf::sync_job {
		2954	eval {
		2955	BDB::db_env_open
		2956	$DB_ENV,
		2957	$BDBDIR,
		2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2960	0666;
		2961
		2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2963
		2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2965	$DB_ENV->set_lk_detect;
		2966	};
		2967
		2968	cf::cleanup "db_env_open(db): $@" if $@;
2441	})->();	2969	};
2442	},	2970	}
2443	);	2971	}
		2972
		2973	{
		2974	IO::AIO::min_parallel 8;
		2975
		2976	undef $Coro::AIO::WATCHER;
		2977	IO::AIO::max_poll_time $TICK * 0.1;
		2978	$AIO_POLL_WATCHER = Event->io (
		2979	reentrant => 0,
		2980	data => WF_AUTOCANCEL,
		2981	fd => IO::AIO::poll_fileno,
		2982	poll => 'r',
		2983	prio => 6,
		2984	cb => \&IO::AIO::poll_cb,
		2985	);
		2986	}
		2987
		2988	my $_log_backtrace;
		2989
		2990	sub _log_backtrace {
		2991	my ($msg, @addr) = @_;
		2992
		2993	$msg =~ s/\n//;
		2994
		2995	# limit the # of concurrent backtraces
		2996	if ($_log_backtrace < 2) {
		2997	++$_log_backtrace;
		2998	async {
		2999	my @bt = fork_call {
		3000	@addr = map { sprintf "%x", $_ } @addr;
		3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3003	or die "addr2line: $!";
		3004
		3005	my @funcs;
		3006	my @res = <$fh>;
		3007	chomp for @res;
		3008	while (@res) {
		3009	my ($func, $line) = splice @res, 0, 2, ();
		3010	push @funcs, "[$func] $line";
		3011	}
		3012
		3013	@funcs
		3014	};
		3015
		3016	LOG llevInfo, "[ABT] $msg\n";
		3017	LOG llevInfo, "[ABT] $_\n" for @bt;
		3018	--$_log_backtrace;
		3019	};
		3020	} else {
		3021	LOG llevInfo, "[ABT] $msg\n";
		3022	LOG llevInfo, "[ABT] [suppressed]\n";
		3023	}
		3024	}
		3025
		3026	# load additional modules
		3027	use cf::pod;
2444		3028
2445	END { cf::emergency_save }	3029	END { cf::emergency_save }
2446		3030
2447	1	3031	1
2448		3032

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