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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.263 by root, Sat May 5 05:40:27 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 ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		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
26	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
27		41
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # 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
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	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(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	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;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut	234	=item cf::lock_wait $string
180		235
181	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
183	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
184	}	264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
185		305
186	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
187		307
188	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
205		325
206	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	327	# (but this is cancel-safe)
208	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
209		329
210	my $busy = 1;	330	my $busy = 1;
211	my @res;	331	my @res;
212		332
213	(Coro::async {	333	(async {
214	@res = eval { $job->() };	334	@res = eval { $job->() };
215	warn $@ if $@;	335	warn $@ if $@;
216	undef $busy;	336	undef $busy;
217	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
218		338
219	while ($busy) {	339	while ($busy) {
220	Coro::cede_notself;	340	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	341	}
223		342
224	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
225	} else {	344	} else {
226	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
227		346
228	$job->()	347	$job->()
229	}	348	}
230	}	349	}
231		350
232	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
233		352
234	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
236		355
237	=cut	356	=cut
238		357
239	sub coro(&) {	358	sub async_ext(&) {
240	my $cb = shift;	359	my $cb = shift;
241		360
242	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		362
249	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
251	});	365	});
252	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
253		367
254	$coro	368	$coro
255	}	369	}
256		370
257	sub write_runtime {	371	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
259		373
		374	my $runtime = "$LOCALDIR/runtime";
		375
		376	warn "starting to write runtime...\n";#d#
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	378	or return;
262		379
		380	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	381	# 10 is the runtime save interval, for a monotonic clock
		382	# 60 allows for the watchdog to kill the server.
		383
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	384	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	385	and return;
266		386
		387	# always fsync - this file is important
267	aio_fsync $fh	388	aio_fsync $fh
268	and return;	389	and return;
269		390
270	close $fh	391	close $fh
271	or return;	392	or return;
272		393
273	aio_rename "$runtime~", $runtime	394	aio_rename "$runtime~", $runtime
274	and return;	395	and return;
275		396
		397	warn "... done writing runtime.\n";#d#
		398
276	1	399	1
277	}	400	}
278		401
		402	=item cf::datalog type => key => value, ...
		403
		404	Log a datalog packet of the given type with the given key-value pairs.
		405
		406	=cut
		407
		408	sub datalog($@) {
		409	my ($type, %kv) = @_;
		410	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		411	}
		412
279	=back	413	=back
280		414
281	=cut	415	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		416
403	#############################################################################	417	#############################################################################
404		418
405	=head2 ATTACHABLE OBJECTS	419	=head2 ATTACHABLE OBJECTS
406		420
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	546	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	547	our @CB_MAP = ();
534		548
535	my %attachment;	549	my %attachment;
536		550
		551	sub cf::attachable::thawer_merge {
		552	# simply override everything except _meta
		553	local $_[0]{_meta};
		554	%{$_[0]} = %{$_[1]};
		555	}
		556
537	sub _attach_cb($$$$) {	557	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	558	my ($registry, $event, $prio, $cb) = @_;
539		559
540	use sort 'stable';	560	use sort 'stable';
541		561
…		…
712	# object support	732	# object support
713		733
714	sub reattach {	734	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	735	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	736	my ($obj) = @_;
		737
		738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		739
718	my $registry = $obj->registry;	740	my $registry = $obj->registry;
719		741
720	@$registry = ();	742	@$registry = ();
721		743
…		…
768	$filename, length $$rdata, scalar @$objs;	790	$filename, length $$rdata, scalar @$objs;
769		791
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	793	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	795	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	796	close $fh;
775		797
776	if (@$objs) {	798	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	799	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	800	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	801	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	802	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	803	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	804	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	805	aio_rename "$filename.pst~", "$filename.pst";
784	}	806	}
785	} else {	807	} else {
786	aio_unlink "$filename.pst";	808	aio_unlink "$filename.pst";
…		…
853	=cut	875	=cut
854		876
855	sub register_extcmd {	877	sub register_extcmd {
856	my ($name, $cb) = @_;	878	my ($name, $cb) = @_;
857		879
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	880	$EXTCMD{$name} = $cb;
862	}	881	}
863		882
864	cf::player->attach (	883	cf::player->attach (
865	on_command => sub {	884	on_command => sub {
866	my ($pl, $name, $params) = @_;	885	my ($pl, $name, $params) = @_;
…		…
879		898
880	my $msg = eval { from_json $buf };	899	my $msg = eval { from_json $buf };
881		900
882	if (ref $msg) {	901	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	903	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	904	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	905	}
887	}	906	}
888	} else {	907	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		910
892	cf::override;	911	cf::override;
893	},	912	},
894	);	913	);
895		914
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	915	sub load_extension {
903	my ($path) = @_;	916	my ($path) = @_;
904		917
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
906	my $base = $1;	919	my $base = $1;
907	my $pkg = $1;	920	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;	921	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";	922	$pkg = "ext::$pkg";
910		923
911	warn "loading '$path' into '$pkg'\n";	924	warn "... loading '$path' into '$pkg'\n";
912		925
913	open my $fh, "<:utf8", $path	926	open my $fh, "<:utf8", $path
914	or die "$path: $!";	927	or die "$path: $!";
915		928
916	my $source =	929	my $source =
917	"package $pkg; use strict; use utf8;\n"	930	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"	931	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })	932	. (do { local $/; <$fh> })
920	. "\n};\n1";	933	. "\n};\n1";
921		934
922	eval $source	935	unless (eval $source) {
923	or die $@ ? "$path: $@\n"	936	my $msg = $@ ? "$path: $@\n"
924	: "extension disabled.\n";	937	: "extension disabled.\n";
925		938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
926	push @exts, $pkg;	939	warn $@;
927	$ext_pkg{$base} = $pkg;	940	warn "mandatory extension failed to load, exiting.\n";
928		941	exit 1;
929	# no strict 'refs';	942	}
930	# @{"$pkg\::ISA"} = ext::;	943	die $@;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	944	}
945		945
946	# remove commands	946	push @EXTS, $pkg;
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	947	}
971		948
972	sub load_extensions {	949	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {	950	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	951	next unless -r $ext;
…		…
978	} or warn "$ext not loaded: $@";	955	} or warn "$ext not loaded: $@";
979	}	956	}
980	}	957	}
981		958
982	#############################################################################	959	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019		960
1020	=head2 CORE EXTENSIONS	961	=head2 CORE EXTENSIONS
1021		962
1022	Functions and methods that extend core crossfire objects.	963	Functions and methods that extend core crossfire objects.
1023		964
		965	=cut
		966
		967	package cf::player;
		968
		969	use Coro::AIO;
		970
1024	=head3 cf::player	971	=head3 cf::player
1025		972
1026	=over 4	973	=over 4
1027		974
1028	=item cf::player::exists $login	975	=item cf::player::find $login
1029		976
1030	Returns true when the given account exists.	977	Returns the given player object, loading it if necessary (might block).
1031		978
1032	=cut	979	=cut
1033		980
1034	sub cf::player::exists($) {	981	sub playerdir($) {
1035	cf::player::find $_[0]	982	"$PLAYERDIR/"
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	983	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1037	}	984	}
1038		985
		986	sub path($) {
		987	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		988
		989	(playerdir $login) . "/playerdata"
		990	}
		991
		992	sub find_active($) {
		993	$cf::PLAYER{$_[0]}
		994	and $cf::PLAYER{$_[0]}->active
		995	and $cf::PLAYER{$_[0]}
		996	}
		997
		998	sub exists($) {
		999	my ($login) = @_;
		1000
		1001	$cf::PLAYER{$login}
		1002	or cf::sync_job { !aio_stat path $login }
		1003	}
		1004
		1005	sub find($) {
		1006	return $cf::PLAYER{$_[0]} || do {
		1007	my $login = $_[0];
		1008
		1009	my $guard = cf::lock_acquire "user_find:$login";
		1010
		1011	$cf::PLAYER{$_[0]} || do {
		1012	# rename old playerfiles to new ones
		1013	#TODO: remove when no longer required
		1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1017	aio_unlink +(playerdir $login) . "/$login.pl";
		1018
		1019	my $pl = load_pl path $login
		1020	or return;
		1021	$cf::PLAYER{$login} = $pl
		1022	}
		1023	}
		1024	}
		1025
		1026	sub save($) {
		1027	my ($pl) = @_;
		1028
		1029	return if $pl->{deny_save};
		1030
		1031	my $path = path $pl;
		1032	my $guard = cf::lock_acquire "user_save:$path";
		1033
		1034	return if $pl->{deny_save};
		1035
		1036	aio_mkdir playerdir $pl, 0770;
		1037	$pl->{last_save} = $cf::RUNTIME;
		1038
		1039	$pl->save_pl ($path);
		1040	Coro::cede;
		1041	}
		1042
		1043	sub new($) {
		1044	my ($login) = @_;
		1045
		1046	my $self = create;
		1047
		1048	$self->ob->name ($login);
		1049	$self->{deny_save} = 1;
		1050
		1051	$cf::PLAYER{$login} = $self;
		1052
		1053	$self
		1054	}
		1055
		1056	=item $pl->quit_character
		1057
		1058	Nukes the player without looking back. If logged in, the connection will
		1059	be destroyed. May block for a long time.
		1060
		1061	=cut
		1062
		1063	sub quit_character {
		1064	my ($pl) = @_;
		1065
		1066	my $name = $pl->ob->name;
		1067
		1068	$pl->{deny_save} = 1;
		1069	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1072	$pl->deactivate;
		1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1074	$pl->ns->destroy if $pl->ns;
		1075
		1076	my $path = playerdir $pl;
		1077	my $temp = "$path~$cf::RUNTIME~deleting~";
		1078	aio_rename $path, $temp;
		1079	delete $cf::PLAYER{$pl->ob->name};
		1080	$pl->destroy;
		1081
		1082	my $prefix = qr<^~\Q$name\E/>;
		1083
		1084	# nuke player maps
		1085	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1086
		1087	IO::AIO::aio_rmtree $temp;
		1088	}
		1089
		1090	=item $pl->kick
		1091
		1092	Kicks a player out of the game. This destroys the connection.
		1093
		1094	=cut
		1095
		1096	sub kick {
		1097	my ($pl, $kicker) = @_;
		1098
		1099	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1100	$pl->killer ("kicked");
		1101	$pl->ns->destroy;
		1102	}
		1103
		1104	=item cf::player::list_logins
		1105
		1106	Returns am arrayref of all valid playernames in the system, can take a
		1107	while and may block, so not sync_job-capable, ever.
		1108
		1109	=cut
		1110
		1111	sub list_logins {
		1112	my $dirs = aio_readdir $PLAYERDIR
		1113	or return [];
		1114
		1115	my @logins;
		1116
		1117	for my $login (@$dirs) {
		1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1119	aio_read $fh, 0, 512, my $buf, 0 or next;
		1120	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1121
		1122	utf8::decode $login;
		1123	push @logins, $login;
		1124	}
		1125
		1126	\@logins
		1127	}
		1128
		1129	=item $player->maps
		1130
		1131	Returns an arrayref of map paths that are private for this
		1132	player. May block.
		1133
		1134	=cut
		1135
		1136	sub maps($) {
		1137	my ($pl) = @_;
		1138
		1139	$pl = ref $pl ? $pl->ob->name : $pl;
		1140
		1141	my $files = aio_readdir playerdir $pl
		1142	or return;
		1143
		1144	my @paths;
		1145
		1146	for (@$files) {
		1147	utf8::decode $_;
		1148	next if /\.(?:pl|pst)$/;
		1149	next unless /^$PATH_SEP/o;
		1150
		1151	push @paths, cf::map::normalise "~$pl/$_";
		1152	}
		1153
		1154	\@paths
		1155	}
		1156
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1157	=item $player->ext_reply ($msgid, %msg)
1040		1158
1041	Sends an ext reply to the player.	1159	Sends an ext reply to the player.
1042		1160
1043	=cut	1161	=cut
1044		1162
1045	sub cf::player::ext_reply($$$%) {	1163	sub ext_reply($$%) {
1046	my ($self, $id, %msg) = @_;	1164	my ($self, $id, %msg) = @_;
1047		1165
1048	$msg{msgid} = $id;	1166	$msg{msgid} = $id;
1049		1167
1050	$self->send ("ext " . to_json \%msg);	1168	$self->send ("ext " . cf::to_json \%msg);
		1169	}
		1170
		1171	=item $player->ext_event ($type, %msg)
		1172
		1173	Sends an ext event to the client.
		1174
		1175	=cut
		1176
		1177	sub ext_event($$%) {
		1178	my ($self, $type, %msg) = @_;
		1179
		1180	$self->ns->ext_event ($type, %msg);
		1181	}
		1182
		1183	=head3 cf::region
		1184
		1185	=over 4
		1186
		1187	=cut
		1188
		1189	package cf::region;
		1190
		1191	=item cf::region::find_by_path $path
		1192
		1193	Tries to decuce the probable region for a map knowing only its path.
		1194
		1195	=cut
		1196
		1197	sub find_by_path($) {
		1198	my ($path) = @_;
		1199
		1200	my ($match, $specificity);
		1201
		1202	for my $region (list) {
		1203	if ($region->match && $path =~ $region->match) {
		1204	($match, $specificity) = ($region, $region->specificity)
		1205	if $region->specificity > $specificity;
		1206	}
		1207	}
		1208
		1209	$match
1051	}	1210	}
1052		1211
1053	=back	1212	=back
1054
1055		1213
1056	=head3 cf::map	1214	=head3 cf::map
1057		1215
1058	=over 4	1216	=over 4
1059		1217
…		…
1062	package cf::map;	1220	package cf::map;
1063		1221
1064	use Fcntl;	1222	use Fcntl;
1065	use Coro::AIO;	1223	use Coro::AIO;
1066		1224
		1225	use overload
		1226	'""' => \&as_string,
		1227	fallback => 1;
		1228
1067	our $MAX_RESET = 7200;	1229	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1230	our $DEFAULT_RESET = 3000;
1069		1231
1070	sub generate_random_map {	1232	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1233	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1234	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1235	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1239	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1240	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1241	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1242	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1243	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1244	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1245	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1246	(cf::region::find $rmp->{region}), $rmp->{custom}
		1247	)
		1248	}
		1249
		1250	=item cf::map->register ($regex, $prio)
		1251
		1252	Register a handler for the map path matching the given regex at the
		1253	givne priority (higher is better, built-in handlers have priority 0, the
		1254	default).
		1255
		1256	=cut
		1257
		1258	sub register {
		1259	my (undef, $regex, $prio) = @_;
		1260	my $pkg = caller;
		1261
		1262	no strict;
		1263	push @{"$pkg\::ISA"}, __PACKAGE__;
		1264
		1265	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1266	}
		1267
		1268	# also paths starting with '/'
		1269	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1270
		1271	sub thawer_merge {
		1272	my ($self, $merge) = @_;
		1273
		1274	# we have to keep some variables in memory intact
		1275	local $self->{path};
		1276	local $self->{load_path};
		1277	local $self->{deny_save};
		1278	local $self->{deny_reset};
		1279
		1280	$self->SUPER::thawer_merge ($merge);
		1281	}
		1282
		1283	sub normalise {
		1284	my ($path, $base) = @_;
		1285
		1286	$path = "$path"; # make sure its a string
		1287
		1288	$path =~ s/\.map$//;
		1289
		1290	# map plan:
		1291	#
		1292	# /! non-realised random map exit (special hack!)
		1293	# {... are special paths that are not being touched
		1294	# ?xxx/... are special absolute paths
		1295	# ?random/... random maps
		1296	# /... normal maps
		1297	# ~user/... per-player map of a specific user
		1298
		1299	$path =~ s/$PATH_SEP/\//go;
		1300
		1301	# treat it as relative path if it starts with
		1302	# something that looks reasonable
		1303	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1304	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1305
		1306	$base =~ s{[^/]+/?$}{};
		1307	$path = "$base/$path";
		1308	}
		1309
		1310	for ($path) {
		1311	redo if s{//}{/};
		1312	redo if s{/\.?/}{/};
		1313	redo if s{/[^/]+/\.\./}{/};
		1314	}
		1315
		1316	$path
		1317	}
		1318
		1319	sub new_from_path {
		1320	my (undef, $path, $base) = @_;
		1321
		1322	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1323
		1324	$path = normalise $path, $base;
		1325
		1326	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1327	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1328	my $self = bless cf::map::new, $pkg;
		1329	$self->{path} = $path; $self->path ($path);
		1330	$self->init; # pass $1 etc.
		1331	return $self;
		1332	}
		1333	}
		1334
		1335	Carp::carp "unable to resolve path '$path' (base '$base').";
		1336	()
		1337	}
		1338
		1339	sub init {
		1340	my ($self) = @_;
		1341
		1342	$self
		1343	}
		1344
		1345	sub as_string {
		1346	my ($self) = @_;
		1347
		1348	"$self->{path}"
		1349	}
		1350
		1351	# the displayed name, this is a one way mapping
		1352	sub visible_name {
		1353	&as_string
		1354	}
		1355
		1356	# the original (read-only) location
		1357	sub load_path {
		1358	my ($self) = @_;
		1359
		1360	"$MAPDIR/$self->{path}.map"
		1361	}
		1362
		1363	# the temporary/swap location
		1364	sub save_path {
		1365	my ($self) = @_;
		1366
		1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1368	"$TMPDIR/$path.map"
		1369	}
		1370
		1371	# the unique path, undef == no special unique path
		1372	sub uniq_path {
		1373	my ($self) = @_;
		1374
		1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1376	"$UNIQUEDIR/$path"
1087	}	1377	}
1088		1378
1089	# and all this just because we cannot iterate over	1379	# and all this just because we cannot iterate over
1090	# all maps in C++...	1380	# all maps in C++...
1091	sub change_all_map_light {	1381	sub change_all_map_light {
1092	my ($change) = @_;	1382	my ($change) = @_;
1093		1383
1094	$_->change_map_light ($change) for values %cf::MAP;	1384	$_->change_map_light ($change)
		1385	for grep $_->outdoor, values %cf::MAP;
1095	}	1386	}
1096		1387
		1388	sub unlink_save {
		1389	my ($self) = @_;
		1390
		1391	utf8::encode (my $save = $self->save_path);
		1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1393	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1394	}
		1395
1097	sub try_load_header($) {	1396	sub load_header_from($) {
1098	my ($path) = @_;	1397	my ($self, $path) = @_;
1099		1398
1100	utf8::encode $path;	1399	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1400	#aio_open $path, O_RDONLY, 0
		1401	# or return;
		1402
		1403	$self->_load_header ($path)
1102	or return;	1404	or return;
1103		1405
1104	my $map = cf::map::new	1406	$self->{load_path} = $path;
		1407
		1408	1
		1409	}
		1410
		1411	sub load_header_orig {
		1412	my ($self) = @_;
		1413
		1414	$self->load_header_from ($self->load_path)
		1415	}
		1416
		1417	sub load_header_temp {
		1418	my ($self) = @_;
		1419
		1420	$self->load_header_from ($self->save_path)
		1421	}
		1422
		1423	sub prepare_temp {
		1424	my ($self) = @_;
		1425
		1426	$self->last_access ((delete $self->{last_access})
		1427	|| $cf::RUNTIME); #d#
		1428	# safety
		1429	$self->{instantiate_time} = $cf::RUNTIME
		1430	if $self->{instantiate_time} > $cf::RUNTIME;
		1431	}
		1432
		1433	sub prepare_orig {
		1434	my ($self) = @_;
		1435
		1436	$self->{load_original} = 1;
		1437	$self->{instantiate_time} = $cf::RUNTIME;
		1438	$self->last_access ($cf::RUNTIME);
		1439	$self->instantiate;
		1440	}
		1441
		1442	sub load_header {
		1443	my ($self) = @_;
		1444
		1445	if ($self->load_header_temp) {
		1446	$self->prepare_temp;
		1447	} else {
		1448	$self->load_header_orig
1105	or return;	1449	or return;
		1450	$self->prepare_orig;
		1451	}
1106		1452
1107	$map->load_header ($path)	1453	$self->default_region (cf::region::find_by_path $self->{path})
1108	or return;	1454	unless $self->default_region;
1109		1455
1110	$map->{load_path} = $path;	1456	1
1111
1112	$map
1113	}	1457	}
1114		1458
		1459	sub find;
1115	sub find_map {	1460	sub find {
1116	my ($path, $origin) = @_;	1461	my ($path, $origin) = @_;
1117		1462
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1463	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1464
		1465	cf::lock_wait "map_find:$path";
		1466
1123	$cf::MAP{$key} || do {	1467	$cf::MAP{$path} || do {
1124	# do it the slow way	1468	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1469	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1470	or return;
1139		1471
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1472	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1473
1154	if ($map->should_reset) {	1474	$map->load_header
		1475	or return;
		1476
		1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1478	# doing this can freeze the server in a sync job, obviously
		1479	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1480	$map->reset;
1156	$map = find_map $path;	1481	undef $guard;
		1482	return find $path;
1157	}	1483	}
1158		1484
1159	$cf::MAP{$key} = $map	1485	$cf::MAP{$path} = $map
1160	}	1486	}
1161	}	1487	}
		1488
		1489	sub pre_load { }
		1490	sub post_load { }
1162		1491
1163	sub load {	1492	sub load {
1164	my ($self) = @_;	1493	my ($self) = @_;
1165		1494
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1495	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1496
1170	my $path = $self->{path};	1497	my $path = $self->{path};
1171		1498
		1499	{
		1500	my $guard = cf::lock_acquire "map_load:$path";
		1501
		1502	return if $self->in_memory != cf::MAP_SWAPPED;
		1503
		1504	$self->in_memory (cf::MAP_LOADING);
		1505
1172	$self->alloc;	1506	$self->alloc;
		1507
		1508	$self->pre_load;
		1509	Coro::cede;
		1510
1173	$self->load_objects ($self->{load_path}, 1)	1511	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1512	or return;
1175		1513
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1515	if delete $self->{load_original};
1178		1516
1179	if (my $uniq = $path->uniq_path) {	1517	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1518	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1519	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1520	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1521	$self->_load_objects ($uniq, 0);
1184	}	1522	}
1185	}	1523	}
1186		1524
		1525	Coro::cede;
1187	# now do the right thing for maps	1526	# now do the right thing for maps
1188	$self->link_multipart_objects;	1527	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1528	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1529	unless $self->difficulty;
		1530	Coro::cede;
		1531
		1532	unless ($self->{deny_activate}) {
		1533	$self->decay_objects;
		1534	$self->fix_auto_apply;
		1535	$self->update_buttons;
		1536	Coro::cede;
		1537	$self->set_darkness_map;
		1538	Coro::cede;
1200	$self->activate;	1539	$self->activate;
1201	}	1540	}
1202		1541
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1542	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1543	}
1205		1544
1206	sub load_map_sync {	1545	$self->post_load;
		1546	}
		1547
		1548	sub customise_for {
		1549	my ($self, $ob) = @_;
		1550
		1551	return find "~" . $ob->name . "/" . $self->{path}
		1552	if $self->per_player;
		1553
		1554	$self
		1555	}
		1556
		1557	# find and load all maps in the 3x3 area around a map
		1558	sub load_diag {
		1559	my ($map) = @_;
		1560
		1561	my @diag; # diagonal neighbours
		1562
		1563	for (0 .. 3) {
		1564	my $neigh = $map->tile_path ($_)
		1565	or next;
		1566	$neigh = find $neigh, $map
		1567	or next;
		1568	$neigh->load;
		1569
		1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1572	}
		1573
		1574	for (@diag) {
		1575	my $neigh = find @$_
		1576	or next;
		1577	$neigh->load;
		1578	}
		1579	}
		1580
		1581	sub find_sync {
1207	my ($path, $origin) = @_;	1582	my ($path, $origin) = @_;
1208		1583
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1584	cf::sync_job { find $path, $origin }
		1585	}
1210		1586
1211	cf::sync_job {	1587	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1588	my ($map) = @_;
1213	or return;	1589
		1590	cf::sync_job { $map->load };
		1591	}
		1592
		1593	our %MAP_PREFETCH;
		1594	our $MAP_PREFETCHER = undef;
		1595
		1596	sub find_async {
		1597	my ($path, $origin) = @_;
		1598
		1599	$path = normalise $path, $origin && $origin->{path};
		1600
		1601	if (my $map = $cf::MAP{$path}) {
		1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1603	}
		1604
		1605	undef $MAP_PREFETCH{$path};
		1606	$MAP_PREFETCHER ||= cf::async {
		1607	while (%MAP_PREFETCH) {
		1608	for my $path (keys %MAP_PREFETCH) {
		1609	my $map = find $path
		1610	or next;
1214	$map->load;	1611	$map->load;
1215	$map	1612
		1613	delete $MAP_PREFETCH{$path};
		1614	}
		1615	}
		1616	undef $MAP_PREFETCHER;
1216	}	1617	};
		1618	$MAP_PREFETCHER->prio (6);
		1619
		1620	()
1217	}	1621	}
1218		1622
1219	sub save {	1623	sub save {
1220	my ($self) = @_;	1624	my ($self) = @_;
1221		1625
		1626	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1627
1222	$self->{last_save} = $cf::RUNTIME;	1628	$self->{last_save} = $cf::RUNTIME;
1223		1629
1224	return unless $self->dirty;	1630	return unless $self->dirty;
1225		1631
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1632	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1633	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1634
1229	$self->{load_path} = $save;	1635	$self->{load_path} = $save;
1230		1636
1231	return if $self->{deny_save};	1637	return if $self->{deny_save};
1232		1638
		1639	local $self->{last_access} = $self->last_access;#d#
		1640
		1641	cf::async {
		1642	$_->contr->save for $self->players;
		1643	};
		1644
1233	if ($uniq) {	1645	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1648	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1649	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1650	}
1239	}	1651	}
1240		1652
1241	sub swap_out {	1653	sub swap_out {
1242	my ($self) = @_;	1654	my ($self) = @_;
		1655
		1656	# save first because save cedes
		1657	$self->save;
		1658
		1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1660
1244	return if $self->players;	1661	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1662	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1663	return if $self->{deny_save};
1247		1664
1248	$self->save;
1249	$self->clear;	1665	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1666	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1667	}
1252		1668
1253	sub reset_at {	1669	sub reset_at {
1254	my ($self) = @_;	1670	my ($self) = @_;
1255		1671
1256	# TODO: safety, remove and allow resettable per-player maps	1672	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};	1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1258	return 1e99 if $self->{deny_reset};	1674	return 1e99 if $self->{deny_reset};
1259		1675
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1678
…		…
1267	my ($self) = @_;	1683	my ($self) = @_;
1268		1684
1269	$self->reset_at <= $cf::RUNTIME	1685	$self->reset_at <= $cf::RUNTIME
1270	}	1686	}
1271		1687
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1688	sub reset {
1294	my ($self) = @_;	1689	my ($self) = @_;
1295		1690
		1691	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1692
1296	return if $self->players;	1693	return if $self->players;
1297	return if $self->{path}{user_rel};#d#	1694	return if $self->isa ("ext::map_per_player");#d#
1298		1695
1299	warn "resetting map ", $self->path;#d#	1696	warn "resetting map ", $self->path;#d#
1300		1697
		1698	$self->in_memory (cf::MAP_SWAPPED);
		1699
		1700	# need to save uniques path
		1701	unless ($self->{deny_save}) {
		1702	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1703
		1704	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1705	if $uniq;
		1706	}
		1707
1301	delete $cf::MAP{$self->path};	1708	delete $cf::MAP{$self->path};
		1709
		1710	$self->clear;
1302		1711
1303	$_->clear_links_to ($self) for values %cf::MAP;	1712	$_->clear_links_to ($self) for values %cf::MAP;
1304		1713
1305	$self->unlink_save;	1714	$self->unlink_save;
1306	$self->destroy;	1715	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	1718	my $nuke_counter = "aaaa";
1310		1719
1311	sub nuke {	1720	sub nuke {
1312	my ($self) = @_;	1721	my ($self) = @_;
1313		1722
		1723	delete $cf::MAP{$self->path};
		1724
		1725	$self->unlink_save;
		1726
		1727	bless $self, "cf::map";
		1728	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	1729	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	1730	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1732
		1733	$cf::MAP{$self->path} = $self;
		1734
1317	$self->reset; # polite request, might not happen	1735	$self->reset; # polite request, might not happen
1318	}	1736	}
1319		1737
1320	sub customise_for {	1738	=item cf::map::unique_maps
1321	my ($map, $ob) = @_;
1322		1739
1323	if ($map->per_player) {	1740	Returns an arrayref of paths of all shared maps that have
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1741	instantiated unique items. May block.
1325	}
1326		1742
1327	$map	1743	=cut
1328	}
1329		1744
1330	sub emergency_save {	1745	sub unique_maps() {
1331	local $cf::FREEZE = 1;	1746	my $files = aio_readdir $UNIQUEDIR
		1747	or return;
1332		1748
1333	warn "enter emergency map save\n";	1749	my @paths;
1334		1750
1335	cf::sync_job {	1751	for (@$files) {
1336	warn "begin emergency map save\n";	1752	utf8::decode $_;
1337	$_->save for values %cf::MAP;	1753	next if /\.pst$/;
		1754	next unless /^$PATH_SEP/o;
		1755
		1756	push @paths, cf::map::normalise $_;
1338	};	1757	}
1339		1758
1340	warn "end emergency map save\n";	1759	\@paths
1341	}	1760	}
1342		1761
1343	package cf;	1762	package cf;
1344		1763
1345	=back	1764	=back
1346		1765
		1766	=head3 cf::object
		1767
		1768	=cut
		1769
		1770	package cf::object;
		1771
		1772	=over 4
		1773
		1774	=item $ob->inv_recursive
		1775
		1776	Returns the inventory of the object _and_ their inventories, recursively.
		1777
		1778	=cut
		1779
		1780	sub inv_recursive_;
		1781	sub inv_recursive_ {
		1782	map { $_, inv_recursive_ $_->inv } @_
		1783	}
		1784
		1785	sub inv_recursive {
		1786	inv_recursive_ inv $_[0]
		1787	}
		1788
		1789	package cf;
		1790
		1791	=back
1347		1792
1348	=head3 cf::object::player	1793	=head3 cf::object::player
1349		1794
1350	=over 4	1795	=over 4
1351		1796
…		…
1391		1836
1392	=item $player_object->enter_link	1837	=item $player_object->enter_link
1393		1838
1394	Freezes the player and moves him/her to a special map (C<{link}>).	1839	Freezes the player and moves him/her to a special map (C<{link}>).
1395		1840
1396	The player should be reaosnably safe there for short amounts of time. You	1841	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	1842	I<MUST> call C<leave_link> as soon as possible, though.
1398		1843
		1844	Will never block.
		1845
1399	=item $player_object->leave_link ($map, $x, $y)	1846	=item $player_object->leave_link ($map, $x, $y)
1400		1847
1401	Moves the player out of the specila link map onto the given map. If the	1848	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	1849	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	1850	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	1851	fails, to the emergency map position.
1405		1852
1406	Might block.	1853	Might block.
1407		1854
1408	=cut	1855	=cut
		1856
		1857	sub link_map {
		1858	unless ($LINK_MAP) {
		1859	$LINK_MAP = cf::map::find "{link}"
		1860	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1861	$LINK_MAP->load;
		1862	}
		1863
		1864	$LINK_MAP
		1865	}
1409		1866
1410	sub cf::object::player::enter_link {	1867	sub cf::object::player::enter_link {
1411	my ($self) = @_;	1868	my ($self) = @_;
1412		1869
1413	return if $self->map == $LINK_MAP;	1870	$self->deactivate_recursive;
1414		1871
		1872	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1873
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;	1875	if $self->map;
1417		1876
1418	$self->enter_map ($LINK_MAP, 20, 20);	1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1419	$self->deactivate_recursive;
1420	}	1878	}
1421		1879
1422	sub cf::object::player::leave_link {	1880	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	1881	my ($self, $map, $x, $y) = @_;
1424		1882
1425	my $link_pos = delete $self->{_link_pos};	1883	my $link_pos = delete $self->{_link_pos};
1426		1884
1427	unless ($map) {	1885	unless ($map) {
1428	# restore original map position	1886	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	1887	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	1888	$map = cf::map::find $map;
1431		1889
1432	unless ($map) {	1890	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	1891	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	1892	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	1893	or die "FATAL: cannot load emergency map\n";
1436	}	1894	}
1437	}	1895	}
1438		1896
1439	($x, $y) = (-1, -1)	1897	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	1900	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	1901	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	1902	if $x <=0 && $y <= 0;
1445		1903
1446	$map->load;	1904	$map->load;
		1905	$map->load_diag;
1447		1906
		1907	return unless $self->contr->active;
1448	$self->activate_recursive;	1908	$self->activate_recursive;
		1909
		1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	1911	$self->enter_map ($map, $x, $y);
1450	}	1912	}
1451		1913
		1914	cf::player->attach (
		1915	on_logout => sub {
		1916	my ($pl) = @_;
		1917
		1918	# abort map switching before logout
		1919	if ($pl->ob->{_link_pos}) {
		1920	cf::sync_job {
		1921	$pl->ob->leave_link
		1922	};
		1923	}
		1924	},
		1925	on_login => sub {
		1926	my ($pl) = @_;
		1927
		1928	# try to abort aborted map switching on player login :)
		1929	# should happen only on crashes
		1930	if ($pl->ob->{_link_pos}) {
		1931	$pl->ob->enter_link;
		1932	(async {
		1933	$pl->ob->reply (undef,
		1934	"There was an internal problem at your last logout, "
		1935	. "the server will try to bring you to your intended destination in a second.",
		1936	cf::NDI_RED);
		1937	# we need this sleep as the login has a concurrent enter_exit running
		1938	# and this sleep increases chances of the player not ending up in scorn
		1939	Coro::Timer::sleep 1;
		1940	$pl->ob->leave_link;
		1941	})->prio (2);
		1942	}
		1943	},
		1944	);
		1945
1452	=item $player_object->goto_map ($path, $x, $y)	1946	=item $player_object->goto ($path, $x, $y)
1453		1947
1454	=cut	1948	=cut
1455		1949
1456	sub cf::object::player::goto_map {	1950	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	1951	my ($self, $path, $x, $y) = @_;
1458		1952
1459	$self->enter_link;	1953	$self->enter_link;
1460		1954
1461	(Coro::async {	1955	(async {
1462	$path = new cf::path $path;	1956	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	1957	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;	1958	$map = $map->customise_for ($self) if $map;
1466		1959	$map
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	1960	} or
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1471		1962
1472	$self->leave_link ($map, $x, $y);	1963	$self->leave_link ($map, $x, $y);
1473	})->prio (1);	1964	})->prio (1);
1474	}	1965	}
1475		1966
…		…
1479		1970
1480	sub parse_random_map_params {	1971	sub parse_random_map_params {
1481	my ($spec) = @_;	1972	my ($spec) = @_;
1482		1973
1483	my $rmp = { # defaults	1974	my $rmp = { # defaults
1484	xsize => 10,	1975	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	1976	ysize => (cf::rndm 15, 40),
		1977	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1978	#layout => string,
1486	};	1979	};
1487		1980
1488	for (split /\n/, $spec) {	1981	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	1982	my ($k, $v) = split /\s+/, $_, 2;
1490		1983
…		…
1494	$rmp	1987	$rmp
1495	}	1988	}
1496		1989
1497	sub prepare_random_map {	1990	sub prepare_random_map {
1498	my ($exit) = @_;	1991	my ($exit) = @_;
		1992
		1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		1994
1500	# all this does is basically replace the /! path by	1995	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	1996	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	1997	# that depends on the exit object
1503		1998
1504	my $rmp = parse_random_map_params $exit->msg;	1999	my $rmp = parse_random_map_params $exit->msg;
1505		2000
1506	if ($exit->map) {	2001	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2002	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2003	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2004	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2005	$rmp->{origin_y} = $exit->y;
1511	}	2006	}
1512		2007
1513	$rmp->{random_seed} ||= $exit->random_seed;	2008	$rmp->{random_seed} ||= $exit->random_seed;
1514		2009
1515	my $data = cf::to_json $rmp;	2010	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2011	my $md5 = Digest::MD5::md5_hex $data;
		2012	my $meta = "$RANDOMDIR/$md5.meta";
1517		2013
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2015	aio_write $fh, 0, (length $data), $data, 0;
		2016	undef $fh;
		2017	aio_rename "$meta~", $meta;
1520		2018
1521	$exit->slaying ("?random/$md5");	2019	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2020	$exit->msg (undef);
1523	}	2021	}
1524	}	2022	}
…		…
1526	sub cf::object::player::enter_exit {	2024	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2025	my ($self, $exit) = @_;
1528		2026
1529	return unless $self->type == cf::PLAYER;	2027	return unless $self->type == cf::PLAYER;
1530		2028
		2029	if ($exit->slaying eq "/!") {
		2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2031	# the problem is that $exit might not survive long enough
		2032	# so it needs to be done right now, right here
		2033	cf::sync_job { prepare_random_map $exit };
		2034	}
		2035
		2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2037	my $hp = $exit->stats->hp;
		2038	my $sp = $exit->stats->sp;
		2039
1531	$self->enter_link;	2040	$self->enter_link;
1532		2041
1533	(Coro::async {	2042	(async {
		2043	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2044	unless (eval {
1535		2045	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2046
1542	1;	2047	1;
1543	}) {	2048	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2049	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2050	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2051	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2052	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2053
1549	warn "ERROR in enter_exit: $@";	2054	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2055	$self->leave_link;
1551	}	2056	}
1552	})->prio (1);	2057	})->prio (1);
…		…
1565		2070
1566	sub cf::client::send_drawinfo {	2071	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2072	my ($self, $text, $flags) = @_;
1568		2073
1569	utf8::encode $text;	2074	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2076	}
1572		2077
		2078	=item $client->ext_event ($type, %msg)
		2079
		2080	Sends an exti event to the client.
		2081
		2082	=cut
		2083
		2084	sub cf::client::ext_event($$%) {
		2085	my ($self, $type, %msg) = @_;
		2086
		2087	$msg{msgtype} = "event_$type";
		2088	$self->send_packet ("ext " . cf::to_json \%msg);
		2089	}
1573		2090
1574	=item $success = $client->query ($flags, "text", \&cb)	2091	=item $success = $client->query ($flags, "text", \&cb)
1575		2092
1576	Queues a query to the client, calling the given callback with	2093	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1602	on_reply => sub {	2119	on_reply => sub {
1603	my ($ns, $msg) = @_;	2120	my ($ns, $msg) = @_;
1604		2121
1605	# this weird shuffling is so that direct followup queries	2122	# this weird shuffling is so that direct followup queries
1606	# get handled first	2123	# get handled first
1607	my $queue = delete $ns->{query_queue};	2124	my $queue = delete $ns->{query_queue}
		2125	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2126
1609	(shift @$queue)->[1]->($msg);	2127	(shift @$queue)->[1]->($msg);
		2128	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2129
1611	push @{ $ns->{query_queue} }, @$queue;	2130	push @{ $ns->{query_queue} }, @$queue;
1612		2131
1613	if (@{ $ns->{query_queue} } == @$queue) {	2132	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2133	if (@$queue) {
…		…
1618	}	2137	}
1619	}	2138	}
1620	},	2139	},
1621	);	2140	);
1622		2141
1623	=item $client->coro (\&cb)	2142	=item $client->async (\&cb)
1624		2143
1625	Create a new coroutine, running the specified callback. The coroutine will	2144	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2145	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2146	or loss of connection).
1628		2147
1629	=cut	2148	=cut
1630		2149
1631	sub cf::client::coro {	2150	sub cf::client::async {
1632	my ($self, $cb) = @_;	2151	my ($self, $cb) = @_;
1633		2152
1634	my $coro; $coro = async {	2153	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2154
1641	$coro->on_destroy (sub {	2155	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2156	delete $self->{_coro}{$coro+0};
1643	});	2157	});
1644		2158
…		…
1677		2191
1678	# here we export the classes and methods available to script code	2192	# here we export the classes and methods available to script code
1679		2193
1680	=pod	2194	=pod
1681		2195
1682	The following fucntions and emthods are available within a safe environment:	2196	The following functions and methods are available within a safe environment:
1683		2197
1684	cf::object contr pay_amount pay_player map	2198	cf::object contr pay_amount pay_player map
1685	cf::object::player player	2199	cf::object::player player
1686	cf::player peaceful	2200	cf::player peaceful
1687	cf::map trigger	2201	cf::map trigger
…		…
1772	#############################################################################	2286	#############################################################################
1773		2287
1774	=head2 EXTENSION DATABASE SUPPORT	2288	=head2 EXTENSION DATABASE SUPPORT
1775		2289
1776	Crossfire maintains a very simple database for extension use. It can	2290	Crossfire maintains a very simple database for extension use. It can
1777	currently store anything that can be serialised using Storable, which	2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1778	excludes objects.	2292	convert to/from binary).
1779		2293
1780	The parameter C<$family> should best start with the name of the extension	2294	The parameter C<$family> should best start with the name of the extension
1781	using it, it should be unique.	2295	using it, it should be unique.
1782		2296
1783	=over 4	2297	=over 4
1784		2298
1785	=item $hashref = cf::db_get $family
1786
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key	2299	=item $value = cf::db_get $family => $key
1792		2300
1793	Returns a single value from the database	2301	Returns a single value from the database.
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799		2302
1800	=item cf::db_put $family => $key => $value	2303	=item cf::db_put $family => $key => $value
1801		2304
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you	2305	Stores the given C<$value> in the family.
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812		2306
1813	=cut	2307	=cut
1814		2308
1815	our $DB;	2309	our $DB;
1816		2310
1817	{	2311	sub db_init {
1818	my $path = cf::localdir . "/database.pst";	2312	unless ($DB) {
		2313	$DB = BDB::db_create $DB_ENV;
1819		2314
1820	sub db_load() {	2315	cf::sync_job {
1821	warn "loading database $path\n";#d# remove later	2316	eval {
1822	$DB = stat $path ? Storable::retrieve $path : { };	2317	$DB->set_flags (BDB::CHKSUM);
1823	}
1824		2318
1825	my $pid;	2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1826		2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1827	sub db_save() {	2321	cf::cleanup "db_open(db): $!" if $!;
1828	warn "saving database $path\n";#d# remove later	2322	};
1829	waitpid $pid, 0 if $pid;	2323	cf::cleanup "db_open(db): $@" if $@;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}	2324	};
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	2325	}
		2326	}
1848		2327
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {	2328	sub db_get($$) {
1855	@_ >= 2	2329	my $key = "$_[0]/$_[1]";
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		2330
		2331	cf::sync_job {
		2332	BDB::db_get $DB, undef, $key, my $data;
		2333
		2334	$! ? ()
		2335	: $data
		2336	}
		2337	}
		2338
1860	sub db_put($$;$) {	2339	sub db_put($$$) {
1861	if (@_ >= 3) {	2340	BDB::dbreq_pri 4;
1862	$DB->{$_[0]}{$_[1]} = $_[2];	2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1863	} else {	2342	}
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868		2343
1869	cf::global->attach (	2344	=item cf::cache $id => [$paths...], $processversion => $process
1870	prio => 10000,	2345
1871	on_cleanup => sub {	2346	Generic caching function that returns the value of the resource $id,
1872	db_sync;	2347	caching and regenerating as required.
		2348
		2349	This function can block.
		2350
		2351	=cut
		2352
		2353	sub cache {
		2354	my ($id, $src, $processversion, $process) = @_;
		2355
		2356	my $meta =
		2357	join "\x00",
		2358	$processversion,
		2359	map {
		2360	aio_stat $_
		2361	and Carp::croak "$_: $!";
		2362
		2363	($_, (stat _)[7,9])
		2364	} @$src;
		2365
		2366	my $dbmeta = db_get cache => "$id/meta";
		2367	if ($dbmeta ne $meta) {
		2368	# changed, we may need to process
		2369
		2370	my @data;
		2371	my $md5;
		2372
		2373	for (0 .. $#$src) {
		2374	0 <= aio_load $src->[$_], $data[$_]
		2375	or Carp::croak "$src->[$_]: $!";
1873	},	2376	}
1874	);	2377
		2378	# if processing is expensive, check
		2379	# checksum first
		2380	if (1) {
		2381	$md5 =
		2382	join "\x00",
		2383	$processversion,
		2384	map {
		2385	Coro::cede;
		2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2387	} 0.. $#$src;
		2388
		2389
		2390	my $dbmd5 = db_get cache => "$id/md5";
		2391	if ($dbmd5 eq $md5) {
		2392	db_put cache => "$id/meta", $meta;
		2393
		2394	return db_get cache => "$id/data";
		2395	}
		2396	}
		2397
		2398	my $t1 = Time::HiRes::time;
		2399	my $data = $process->(\@data);
		2400	my $t2 = Time::HiRes::time;
		2401
		2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2403
		2404	db_put cache => "$id/data", $data;
		2405	db_put cache => "$id/md5" , $md5;
		2406	db_put cache => "$id/meta", $meta;
		2407
		2408	return $data;
		2409	}
		2410
		2411	db_get cache => "$id/data"
1875	}	2412	}
		2413
		2414	=item fork_call { }, $args
		2415
		2416	Executes the given code block with the given arguments in a seperate
		2417	process, returning the results. Everything must be serialisable with
		2418	Coro::Storable. May, of course, block. Note that the executed sub may
		2419	never block itself or use any form of Event handling.
		2420
		2421	=cut
		2422
		2423	sub fork_call(&@) {
		2424	my ($cb, @args) = @_;
		2425
		2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2427	# or die "socketpair: $!";
		2428	pipe my $fh1, my $fh2
		2429	or die "pipe: $!";
		2430
		2431	if (my $pid = fork) {
		2432	close $fh2;
		2433
		2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2435	$res = Coro::Storable::thaw $res;
		2436
		2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2438
		2439	die $$res unless "ARRAY" eq ref $res;
		2440
		2441	return wantarray ? @$res : $res->[-1];
		2442	} else {
		2443	reset_signals;
		2444	local $SIG{__WARN__};
		2445	local $SIG{__DIE__};
		2446	eval {
		2447	close $fh1;
		2448
		2449	my @res = eval { $cb->(@args) };
		2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2451	};
		2452
		2453	warn $@ if $@;
		2454	_exit 0;
		2455	}
		2456	}
		2457
		2458
1876		2459
1877	#############################################################################	2460	#############################################################################
1878	# the server's main()	2461	# the server's init and main functions
		2462
		2463	sub load_facedata($) {
		2464	my ($path) = @_;
		2465
		2466	warn "loading facedata from $path\n";
		2467
		2468	my $facedata;
		2469	0 < aio_load $path, $facedata
		2470	or die "$path: $!";
		2471
		2472	$facedata = Coro::Storable::thaw $facedata;
		2473
		2474	$facedata->{version} == 2
		2475	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2476
		2477	{
		2478	my $faces = $facedata->{faceinfo};
		2479
		2480	while (my ($face, $info) = each %$faces) {
		2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2485	Coro::cede;
		2486	}
		2487
		2488	while (my ($face, $info) = each %$faces) {
		2489	next unless $info->{smooth};
		2490	my $idx = cf::face::find $face
		2491	or next;
		2492	if (my $smooth = cf::face::find $info->{smooth}) {
		2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2494	} else {
		2495	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2496	}
		2497	Coro::cede;
		2498	}
		2499	}
		2500
		2501	{
		2502	my $anims = $facedata->{animinfo};
		2503
		2504	while (my ($anim, $info) = each %$anims) {
		2505	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2506	Coro::cede;
		2507	}
		2508
		2509	cf::anim::invalidate_all; # d'oh
		2510	}
		2511
		2512	1
		2513	}
		2514
		2515	sub reload_regions {
		2516	load_resource_file "$MAPDIR/regions"
		2517	or die "unable to load regions file\n";
		2518	}
		2519
		2520	sub reload_facedata {
		2521	load_facedata "$DATADIR/facedata"
		2522	or die "unable to load facedata\n";
		2523	}
		2524
		2525	sub reload_archetypes {
		2526	load_resource_file "$DATADIR/archetypes"
		2527	or die "unable to load archetypes\n";
		2528	}
		2529
		2530	sub reload_treasures {
		2531	load_resource_file "$DATADIR/treasures"
		2532	or die "unable to load treasurelists\n";
		2533	}
		2534
		2535	sub reload_resources {
		2536	warn "reloading resource files...\n";
		2537
		2538	reload_regions;
		2539	reload_facedata;
		2540	reload_archetypes;
		2541	reload_treasures;
		2542
		2543	warn "finished reloading resource files\n";
		2544	}
		2545
		2546	sub init {
		2547	reload_resources;
		2548	}
1879		2549
1880	sub cfg_load {	2550	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2551	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2552	or return;
1883		2553
1884	local $/;	2554	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2555	*CFG = YAML::Syck::Load <$fh>;
		2556
		2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2558
		2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2561
		2562	if (exists $CFG{mlockall}) {
		2563	eval {
		2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2565	and die "WARNING: m(un)lockall failed: $!\n";
		2566	};
		2567	warn $@ if $@;
		2568	}
1886	}	2569	}
1887		2570
1888	sub main {	2571	sub main {
1889	# we must not ever block the main coroutine	2572	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2573	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2575	(async {
1893	Event::one_event;	2576	Event::one_event;
1894	})->();	2577	})->prio (Coro::PRIO_MAX);
1895	};	2578	};
1896		2579
1897	cfg_load;	2580	cfg_load;
1898	db_load;	2581	db_init;
1899	load_extensions;	2582	load_extensions;
		2583
		2584	$TICK_WATCHER->start;
1900	Event::loop;	2585	Event::loop;
1901	}	2586	}
1902		2587
1903	#############################################################################	2588	#############################################################################
1904	# initialisation	2589	# initialisation and cleanup
1905		2590
		2591	# install some emergency cleanup handlers
		2592	BEGIN {
		2593	for my $signal (qw(INT HUP TERM)) {
		2594	Event->signal (
		2595	reentrant => 0,
		2596	data => WF_AUTOCANCEL,
		2597	signal => $signal,
		2598	prio => 0,
		2599	cb => sub {
		2600	cf::cleanup "SIG$signal";
		2601	},
		2602	);
		2603	}
		2604	}
		2605
		2606	sub emergency_save() {
		2607	my $freeze_guard = cf::freeze_mainloop;
		2608
		2609	warn "enter emergency perl save\n";
		2610
		2611	cf::sync_job {
		2612	# use a peculiar iteration method to avoid tripping on perl
		2613	# refcount bugs in for. also avoids problems with players
		2614	# and maps saved/destroyed asynchronously.
		2615	warn "begin emergency player save\n";
		2616	for my $login (keys %cf::PLAYER) {
		2617	my $pl = $cf::PLAYER{$login} or next;
		2618	$pl->valid or next;
		2619	$pl->save;
		2620	}
		2621	warn "end emergency player save\n";
		2622
		2623	warn "begin emergency map save\n";
		2624	for my $path (keys %cf::MAP) {
		2625	my $map = $cf::MAP{$path} or next;
		2626	$map->valid or next;
		2627	$map->save;
		2628	}
		2629	warn "end emergency map save\n";
		2630
		2631	warn "begin emergency database checkpoint\n";
		2632	BDB::db_env_txn_checkpoint $DB_ENV;
		2633	warn "end emergency database checkpoint\n";
		2634	};
		2635
		2636	warn "leave emergency perl save\n";
		2637	}
		2638
		2639	sub post_cleanup {
		2640	my ($make_core) = @_;
		2641
		2642	warn Carp::longmess "post_cleanup backtrace"
		2643	if $make_core;
		2644	}
		2645
1906	sub reload() {	2646	sub do_reload_perl() {
1907	# can/must only be called in main	2647	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2648	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2649	warn "can only reload from main coroutine";
1910	return;	2650	return;
1911	}	2651	}
1912		2652
1913	warn "reloading...";	2653	warn "reloading...";
1914		2654
1915	local $FREEZE = 1;	2655	warn "entering sync_job";
		2656
		2657	cf::sync_job {
		2658	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2659	cf::emergency_save;
		2660	cf::write_runtime; # external watchdog should not bark
1917		2661
1918	eval {	2662	warn "syncing database to disk";
		2663	BDB::db_env_txn_checkpoint $DB_ENV;
		2664
1919	# if anything goes wrong in here, we should simply crash as we already saved	2665	# if anything goes wrong in here, we should simply crash as we already saved
1920		2666
1921	# cancel all watchers	2667	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2668	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2669	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2670	}
1925		2671
		2672	warn "flushing outstanding aio requests";
		2673	for (;;) {
		2674	BDB::flush;
		2675	IO::AIO::flush;
		2676	Coro::cede;
		2677	last unless IO::AIO::nreqs || BDB::nreqs;
		2678	warn "iterate...";
		2679	}
		2680
		2681	++$RELOAD;
		2682
1926	# cancel all extension coros	2683	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2684	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2685	%EXT_CORO = ();
1929		2686
1930	# unload all extensions	2687	warn "removing commands";
1931	for (@exts) {	2688	%COMMAND = ();
		2689
		2690	warn "removing ext commands";
		2691	%EXTCMD = ();
		2692
		2693	warn "unloading/nuking all extensions";
		2694	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2695	warn "... unloading $pkg";
1933	unload_extension $_;	2696
		2697	if (my $cb = $pkg->can ("unload")) {
		2698	eval {
		2699	$cb->($pkg);
		2700	1
		2701	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2702	}
1935		2703
		2704	warn "... nuking $pkg";
		2705	Symbol::delete_package $pkg;
		2706	}
		2707
1936	# unload all modules loaded from $LIBDIR	2708	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2709	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2711
1940	warn "removing <$k>";	2712	warn "... unloading $k";
1941	delete $INC{$k};	2713	delete $INC{$k};
1942		2714
1943	$k =~ s/\.pm$//;	2715	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	2716	$k =~ s/\//::/g;
1945		2717
…		…
1948	}	2720	}
1949		2721
1950	Symbol::delete_package $k;	2722	Symbol::delete_package $k;
1951	}	2723	}
1952		2724
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	2725	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	2726	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		2728
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	2729	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	2730	delete $INC{"cf.pm"};
		2731	delete $INC{"cf/pod.pm"};
1966		2732
1967	# don't, removes xs symbols, too,	2733	# don't, removes xs symbols, too,
1968	# and global variables created in xs	2734	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	2735	#Symbol::delete_package __PACKAGE__;
1970		2736
1971	# reload cf.pm	2737	warn "unload completed, starting to reload now";
		2738
1972	warn "reloading cf.pm";	2739	warn "reloading cf.pm";
1973	require cf;	2740	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		2742
1976	# load config and database again	2743	warn "loading config and database again";
1977	cf::cfg_load;	2744	cf::cfg_load;
1978	cf::db_load;
1979		2745
1980	# load extensions
1981	warn "load extensions";	2746	warn "loading extensions";
1982	cf::load_extensions;	2747	cf::load_extensions;
1983		2748
1984	# reattach attachments to objects	2749	warn "reattaching attachments to objects/players";
1985	warn "reattach";	2750	_global_reattach; # objects, sockets
1986	_global_reattach;	2751	warn "reattaching attachments to maps";
1987	};	2752	reattach $_ for values %MAP;
		2753	warn "reattaching attachments to players";
		2754	reattach $_ for values %PLAYER;
1988		2755
1989	if ($@) {	2756	warn "leaving sync_job";
		2757
		2758	1
		2759	} or do {
1990	warn $@;	2760	warn $@;
1991	warn "error while reloading, exiting.";	2761	warn "error while reloading, exiting.";
1992	exit 1;	2762	exit 1;
1993	}	2763	};
1994		2764
1995	warn "reloaded successfully";	2765	warn "reloaded";
1996	};	2766	};
1997		2767
1998	#############################################################################	2768	our $RELOAD_WATCHER; # used only during reload
1999		2769
2000	unless ($LINK_MAP) {	2770	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	2771	# doing reload synchronously and two reloads happen back-to-back,
		2772	# coro crashes during coro_state_free->destroy here.
2002		2773
2003	$LINK_MAP->width (41);	2774	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	2775	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	2776	after => 0,
		2777	data => WF_AUTOCANCEL,
2013	cb => sub {	2778	cb => sub {
2014	$_[0]->w->cancel;	2779	do_reload_perl;
2015		2780	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	2781	},
2034		2782	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	2783	}
2040
2041	register "<global>", __PACKAGE__;
2042		2784
2043	register_command "reload" => sub {	2785	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	2786	my ($who, $arg) = @_;
2045		2787
2046	if ($who->flag (FLAG_WIZ)) {	2788	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	2789	$who->message ("reloading server.");
		2790	async { reload_perl };
2050	}	2791	}
2051	};	2792	};
2052		2793
2053	unshift @INC, $LIBDIR;	2794	unshift @INC, $LIBDIR;
		2795
		2796	my $bug_warning = 0;
		2797
		2798	our @WAIT_FOR_TICK;
		2799	our @WAIT_FOR_TICK_BEGIN;
		2800
		2801	sub wait_for_tick {
		2802	return unless $TICK_WATCHER->is_active;
		2803	return if $Coro::current == $Coro::main;
		2804
		2805	my $signal = new Coro::Signal;
		2806	push @WAIT_FOR_TICK, $signal;
		2807	$signal->wait;
		2808	}
		2809
		2810	sub wait_for_tick_begin {
		2811	return unless $TICK_WATCHER->is_active;
		2812	return if $Coro::current == $Coro::main;
		2813
		2814	my $signal = new Coro::Signal;
		2815	push @WAIT_FOR_TICK_BEGIN, $signal;
		2816	$signal->wait;
		2817	}
2054		2818
2055	$TICK_WATCHER = Event->timer (	2819	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	2820	reentrant => 0,
		2821	parked => 1,
2057	prio => 0,	2822	prio => 0,
2058	at => $NEXT_TICK || $TICK,	2823	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	2824	data => WF_AUTOCANCEL,
2060	cb => sub {	2825	cb => sub {
2061	unless ($FREEZE) {	2826	if ($Coro::current != $Coro::main) {
		2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2828	unless ++$bug_warning > 10;
		2829	return;
		2830	}
		2831
		2832	$NOW = Event::time;
		2833
2062	cf::server_tick; # one server iteration	2834	cf::server_tick; # one server iteration
		2835
2063	$RUNTIME += $TICK;	2836	$RUNTIME += $TICK;
2064	}
2065
2066	$NEXT_TICK += $TICK;	2837	$NEXT_TICK += $TICK;
		2838
		2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2840	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2841	Coro::async_pool {
		2842	write_runtime
		2843	or warn "ERROR: unable to write runtime file: $!";
		2844	};
		2845	}
		2846
		2847	# my $AFTER = Event::time;
		2848	# warn $AFTER - $NOW;#d#
2067		2849
2068	# if we are delayed by four ticks or more, skip them all	2850	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2070		2852
2071	$TICK_WATCHER->at ($NEXT_TICK);	2853	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	2854	$TICK_WATCHER->start;
		2855
		2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2857	$sig->send;
		2858	}
		2859	while (my $sig = shift @WAIT_FOR_TICK) {
		2860	$sig->send;
		2861	}
		2862
		2863	_post_tick;
2073	},	2864	},
2074	);	2865	);
2075		2866
		2867	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	2868	BDB::max_poll_time $TICK * 0.1;
2077		2869	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	2870	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	2871	fd => BDB::poll_fileno,
2080	poll => 'r',	2872	poll => 'r',
2081	prio => 5,	2873	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2088	after => 0,	2875	cb => \&BDB::poll_cb,
2089	interval => 10,	2876	);
2090	cb => sub {	2877	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	2878
2092	write_runtime	2879	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	2880	my $status;
		2881	my $current = $Coro::current;
		2882	(
		2883	sub {
		2884	$status = $!;
		2885	$current->ready; undef $current;
		2886	},
		2887	sub {
		2888	Coro::schedule while defined $current;
		2889	$! = $status;
		2890	},
		2891	)
		2892	};
		2893
		2894	unless ($DB_ENV) {
		2895	$DB_ENV = BDB::db_env_create;
		2896
		2897	cf::sync_job {
		2898	eval {
		2899	BDB::db_env_open
		2900	$DB_ENV,
		2901	$BDBDIR,
		2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2904	0666;
		2905
		2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2907
		2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2909	$DB_ENV->set_lk_detect;
		2910	};
		2911
		2912	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	2913	};
2095	},	2914	}
2096	);	2915	}
		2916
		2917	{
		2918	IO::AIO::min_parallel 8;
		2919
		2920	undef $Coro::AIO::WATCHER;
		2921	IO::AIO::max_poll_time $TICK * 0.1;
		2922	$AIO_POLL_WATCHER = Event->io (
		2923	reentrant => 0,
		2924	data => WF_AUTOCANCEL,
		2925	fd => IO::AIO::poll_fileno,
		2926	poll => 'r',
		2927	prio => 6,
		2928	cb => \&IO::AIO::poll_cb,
		2929	);
		2930	}
		2931
		2932	my $_log_backtrace;
		2933
		2934	sub _log_backtrace {
		2935	my ($msg, @addr) = @_;
		2936
		2937	$msg =~ s/\n//;
		2938
		2939	# limit the # of concurrent backtraces
		2940	if ($_log_backtrace < 2) {
		2941	++$_log_backtrace;
		2942	async {
		2943	my @bt = fork_call {
		2944	@addr = map { sprintf "%x", $_ } @addr;
		2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2947	or die "addr2line: $!";
		2948
		2949	my @funcs;
		2950	my @res = <$fh>;
		2951	chomp for @res;
		2952	while (@res) {
		2953	my ($func, $line) = splice @res, 0, 2, ();
		2954	push @funcs, "[$func] $line";
		2955	}
		2956
		2957	@funcs
		2958	};
		2959
		2960	LOG llevInfo, "[ABT] $msg\n";
		2961	LOG llevInfo, "[ABT] $_\n" for @bt;
		2962	--$_log_backtrace;
		2963	};
		2964	} else {
		2965	LOG llevInfo, "[ABT] $msg\n";
		2966	LOG llevInfo, "[ABT] [suppressed]\n";
		2967	}
		2968	}
		2969
		2970	# load additional modules
		2971	use cf::pod;
		2972
		2973	END { cf::emergency_save }
2097		2974
2098	1	2975	1
2099		2976

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