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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
77		111
78	#############################################################################	112	#############################################################################
79		113
80	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
81		115
…		…
88	=item $cf::RUNTIME	122	=item $cf::RUNTIME
89		123
90	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
91	every server tick.	125	every server tick.
92		126
93	=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
94		130
95	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		135
98	=item $cf::NOW	136	=item $cf::NOW
99		137
100	The time of the last (current) server tick.	138	The time of the last (current) server tick.
101		139
…		…
105		143
106	=item %cf::CFG	144	=item %cf::CFG
107		145
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		154
111	=back	155	=back
112		156
113	=cut	157	=cut
114		158
115	BEGIN {	159	BEGIN {
116	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	161	my $msg = join "", @_;
118	utf8::encode $msg;
119		162
120	$msg .= "\n"	163	$msg .= "\n"
121	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
122		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
124	};	170	};
125	}	171	}
126		172
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		192
147	$Event::DIED = sub {	193	$Event::DIED = sub {
148	warn "error in event callback: @_";	194	warn "error in event callback: @_";
149	};	195	};
150		196
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
156		198
157	=over 4	199	=over 4
158		200
159	=cut	201	=item dumpval $ref
160		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
161	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
162		225
163	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
164		227
165	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
166		229
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
175		231
176	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
177		233
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	234	=item cf::lock_wait $string
208		235
209	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
210		237
211	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
212		239
213	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
216	returned.	243	returned.
217		244
218	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	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.
220		251
221	=cut	252	=cut
222		253
223	our %LOCK;	254	our %LOCK;
224		255
…		…
238	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
239	lock_wait $key;	270	lock_wait $key;
240		271
241	$LOCK{$key} = [];	272	$LOCK{$key} = [];
242		273
243	cf::guard {	274	Coro::guard {
244	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
246	}	277	}
247	}	278	}
248		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	$guard
		294	}
		295
249	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
250		297
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
253		301
254	=cut	302	=cut
255		303
256	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		305
265	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
266		307
267	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
268	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
…		…
282	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
284		325
285	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	327	# (but this is cancel-safe)
287	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
288		329
289	my $busy = 1;	330	my $busy = 1;
290	my @res;	331	my @res;
291		332
292	(Coro::async {	333	(async {
293	@res = eval { $job->() };	334	@res = eval { $job->() };
294	warn $@ if $@;	335	warn $@ if $@;
295	undef $busy;	336	undef $busy;
296	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
297		338
298	while ($busy) {	339	while ($busy) {
299	Coro::cede_notself;	340	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	341	}
302		342
303	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
304	} else {	344	} else {
305	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
306		346
307	$job->()	347	$job->()
308	}	348	}
309	}	349	}
310		350
311	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
312		352
313	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
315		355
316	=cut	356	=cut
317		357
318	sub coro(&) {	358	sub async_ext(&) {
319	my $cb = shift;	359	my $cb = shift;
320		360
321	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
322		362
323	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
325	});	365	});
326	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
327		367
328	$coro	368	$coro
329	}	369	}
330		370
331	sub write_runtime {	371	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
333		373
		374	my $runtime = "$LOCALDIR/runtime";
		375
		376	warn "starting to write runtime...\n";#d#
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	378	or return;
336		379
		380	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	384	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	385	and return;
340		386
		387	# always fsync - this file is important
341	aio_fsync $fh	388	aio_fsync $fh
342	and return;	389	and return;
343		390
344	close $fh	391	close $fh
345	or return;	392	or return;
346		393
347	aio_rename "$runtime~", $runtime	394	aio_rename "$runtime~", $runtime
348	and return;	395	and return;
349		396
		397	warn "... done writing runtime.\n";#d#
		398
350	1	399	1
351	}	400	}
352		401
		402	=item cf::datalog type => key => value, ...
		403
		404	Log a datalog packet of the given type with the given key-value pairs.
		405
		406	=cut
		407
		408	sub datalog($@) {
		409	my ($type, %kv) = @_;
		410	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		411	}
		412
353	=back	413	=back
354		414
355	=cut	415	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		416
477	#############################################################################	417	#############################################################################
478		418
479	=head2 ATTACHABLE OBJECTS	419	=head2 ATTACHABLE OBJECTS
480		420
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	546	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	547	our @CB_MAP = ();
608		548
609	my %attachment;	549	my %attachment;
610		550
		551	sub cf::attachable::thawer_merge {
		552	# simply override everything except _meta
		553	local $_[0]{_meta};
		554	%{$_[0]} = %{$_[1]};
		555	}
		556
611	sub _attach_cb($$$$) {	557	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	558	my ($registry, $event, $prio, $cb) = @_;
613		559
614	use sort 'stable';	560	use sort 'stable';
615		561
…		…
786	# object support	732	# object support
787		733
788	sub reattach {	734	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	735	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	736	my ($obj) = @_;
		737
		738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		739
792	my $registry = $obj->registry;	740	my $registry = $obj->registry;
793		741
794	@$registry = ();	742	@$registry = ();
795		743
…		…
842	$filename, length $$rdata, scalar @$objs;	790	$filename, length $$rdata, scalar @$objs;
843		791
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	793	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	795	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	796	close $fh;
849		797
850	if (@$objs) {	798	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	800	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	801	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	802	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	803	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	804	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	805	aio_rename "$filename.pst~", "$filename.pst";
858	}	806	}
859	} else {	807	} else {
860	aio_unlink "$filename.pst";	808	aio_unlink "$filename.pst";
…		…
927	=cut	875	=cut
928		876
929	sub register_extcmd {	877	sub register_extcmd {
930	my ($name, $cb) = @_;	878	my ($name, $cb) = @_;
931		879
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	880	$EXTCMD{$name} = $cb;
936	}	881	}
937		882
938	cf::player->attach (	883	cf::player->attach (
939	on_command => sub {	884	on_command => sub {
940	my ($pl, $name, $params) = @_;	885	my ($pl, $name, $params) = @_;
…		…
953		898
954	my $msg = eval { from_json $buf };	899	my $msg = eval { from_json $buf };
955		900
956	if (ref $msg) {	901	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	903	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	904	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	905	}
961	}	906	}
962	} else {	907	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		910
966	cf::override;	911	cf::override;
967	},	912	},
968	);	913	);
969		914
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	915	sub load_extension {
977	my ($path) = @_;	916	my ($path) = @_;
978		917
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	919	my $base = $1;
981	my $pkg = $1;	920	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	921	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	922	$pkg = "ext::$pkg";
984		923
985	warn "loading '$path' into '$pkg'\n";	924	warn "... loading '$path' into '$pkg'\n";
986		925
987	open my $fh, "<:utf8", $path	926	open my $fh, "<:utf8", $path
988	or die "$path: $!";	927	or die "$path: $!";
989		928
990	my $source =	929	my $source =
991	"package $pkg; use strict; use utf8;\n"	930	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	931	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	932	. (do { local $/; <$fh> })
994	. "\n};\n1";	933	. "\n};\n1";
995		934
996	eval $source	935	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	936	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	937	: "extension disabled.\n";
999		938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	939	warn $@;
1001	$ext_pkg{$base} = $pkg;	940	warn "mandatory extension failed to load, exiting.\n";
1002		941	exit 1;
1003	# no strict 'refs';	942	}
1004	# @{"$pkg\::ISA"} = ext::;	943	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	944	}
1019		945
1020	# remove commands	946	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	947	}
1045		948
1046	sub load_extensions {	949	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	950	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	951	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	955	} or warn "$ext not loaded: $@";
1053	}	956	}
1054	}	957	}
1055		958
1056	#############################################################################	959	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		960
1094	=head2 CORE EXTENSIONS	961	=head2 CORE EXTENSIONS
1095		962
1096	Functions and methods that extend core crossfire objects.	963	Functions and methods that extend core crossfire objects.
1097		964
		965	=cut
		966
		967	package cf::player;
		968
		969	use Coro::AIO;
		970
1098	=head3 cf::player	971	=head3 cf::player
1099		972
1100	=over 4	973	=over 4
1101		974
1102	=item cf::player::exists $login	975	=item cf::player::find $login
1103		976
1104	Returns true when the given account exists.	977	Returns the given player object, loading it if necessary (might block).
1105		978
1106	=cut	979	=cut
1107		980
1108	sub cf::player::exists($) {	981	sub playerdir($) {
1109	cf::player::find $_[0]	982	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	983	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	984	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1157	=item $player->ext_reply ($msgid, %msg)
1114		1158
1115	Sends an ext reply to the player.	1159	Sends an ext reply to the player.
1116		1160
1117	=cut	1161	=cut
1118		1162
1119	sub cf::player::ext_reply($$$%) {	1163	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1164	my ($self, $id, %msg) = @_;
1121		1165
1122	$msg{msgid} = $id;	1166	$msg{msgid} = $id;
1123		1167
1124	$self->send ("ext " . to_json \%msg);	1168	$self->send ("ext " . cf::to_json \%msg);
		1169	}
		1170
		1171	=item $player->ext_event ($type, %msg)
		1172
		1173	Sends an ext event to the client.
		1174
		1175	=cut
		1176
		1177	sub ext_event($$%) {
		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
1125	}	1210	}
1126		1211
1127	=back	1212	=back
1128
1129		1213
1130	=head3 cf::map	1214	=head3 cf::map
1131		1215
1132	=over 4	1216	=over 4
1133		1217
…		…
1136	package cf::map;	1220	package cf::map;
1137		1221
1138	use Fcntl;	1222	use Fcntl;
1139	use Coro::AIO;	1223	use Coro::AIO;
1140		1224
		1225	use overload
		1226	'""' => \&as_string,
		1227	fallback => 1;
		1228
1141	our $MAX_RESET = 7200;	1229	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1230	our $DEFAULT_RESET = 3000;
1143		1231
1144	sub generate_random_map {	1232	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1233	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1234	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1235	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1239	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1240	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1241	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1242	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1243	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1245	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1377	}
1162		1378
1163	# and all this just because we cannot iterate over	1379	# and all this just because we cannot iterate over
1164	# all maps in C++...	1380	# all maps in C++...
1165	sub change_all_map_light {	1381	sub change_all_map_light {
…		…
1167		1383
1168	$_->change_map_light ($change)	1384	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1385	for grep $_->outdoor, values %cf::MAP;
1170	}	1386	}
1171		1387
		1388	sub unlink_save {
		1389	my ($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
1172	sub try_load_header($) {	1396	sub load_header_from($) {
1173	my ($path) = @_;	1397	my ($self, $path) = @_;
1174		1398
1175	utf8::encode $path;	1399	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1400	#aio_open $path, O_RDONLY, 0
		1401	# or return;
		1402
		1403	$self->_load_header ($path)
1177	or return;	1404	or return;
1178		1405
1179	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
1180	or return;	1449	or return;
		1450	$self->prepare_orig;
		1451	}
1181		1452
1182	$map->load_header ($path)	1453	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1454	unless $self->default_region;
1184		1455
1185	$map->{load_path} = $path;	1456	1
1186
1187	$map
1188	}	1457	}
1189		1458
1190	sub find_map;	1459	sub find;
1191	sub find_map {	1460	sub find {
1192	my ($path, $origin) = @_;	1461	my ($path, $origin) = @_;
1193		1462
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1463	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1464
1199	cf::lock_wait "map_find:$key";	1465	cf::lock_wait "map_find:$path";
1200		1466
1201	$cf::MAP{$key} || do {	1467	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1468	my $guard = cf::lock_acquire "map_find:$path";
1203		1469	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1470	or return;
1219		1471
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1472	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1473
1233	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;
1234	$map->reset;	1480	$map->reset;
1235	undef $guard;	1481	undef $guard;
1236	$map = find_map $path	1482	return find $path;
1237	or return;
1238	}	1483	}
1239		1484
1240	$cf::MAP{$key} = $map	1485	$cf::MAP{$path} = $map
1241	}	1486	}
1242	}	1487	}
		1488
		1489	sub pre_load { }
		1490	sub post_load { }
1243		1491
1244	sub load {	1492	sub load {
1245	my ($self) = @_;	1493	my ($self) = @_;
1246		1494
		1495	local $self->{deny_reset} = 1; # loading can take a long time
		1496
1247	my $path = $self->{path};	1497	my $path = $self->{path};
		1498
		1499	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1500	my $guard = cf::lock_acquire "map_load:$path";
1249		1501
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1502	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1503
1252	$self->in_memory (cf::MAP_LOADING);	1504	$self->in_memory (cf::MAP_LOADING);
1253		1505
1254	$self->alloc;	1506	$self->alloc;
		1507
		1508	$self->pre_load;
		1509	Coro::cede;
		1510
1255	$self->load_objects ($self->{load_path}, 1)	1511	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1512	or return;
1257		1513
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1515	if delete $self->{load_original};
1260		1516
1261	if (my $uniq = $path->uniq_path) {	1517	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1518	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1519	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1520	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1521	$self->_load_objects ($uniq, 0);
1266	}	1522	}
1267	}	1523	}
1268		1524
		1525	Coro::cede;
1269	# now do the right thing for maps	1526	# now do the right thing for maps
1270	$self->link_multipart_objects;	1527	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1528	$self->difficulty ($self->estimate_difficulty)
1281	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;
1282	$self->activate;	1539	$self->activate;
1283	}	1540	}
1284		1541
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1542	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1543	}
1287		1544
1288	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	$neigh->load;
		1578	}
		1579	}
		1580
		1581	sub find_sync {
1289	my ($path, $origin) = @_;	1582	my ($path, $origin) = @_;
1290		1583
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1584	cf::sync_job { find $path, $origin }
		1585	}
1292		1586
1293	cf::sync_job {	1587	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1588	my ($map) = @_;
1295	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;
1296	$map->load;	1611	$map->load;
1297	$map	1612
		1613	delete $MAP_PREFETCH{$path};
		1614	}
		1615	}
		1616	undef $MAP_PREFETCHER;
1298	}	1617	};
		1618	$MAP_PREFETCHER->prio (6);
		1619
		1620	()
1299	}	1621	}
1300		1622
1301	sub save {	1623	sub save {
1302	my ($self) = @_;	1624	my ($self) = @_;
1303		1625
		1626	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1627
1304	$self->{last_save} = $cf::RUNTIME;	1628	$self->{last_save} = $cf::RUNTIME;
1305		1629
1306	return unless $self->dirty;	1630	return unless $self->dirty;
1307		1631
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1632	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1633	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1634
1311	$self->{load_path} = $save;	1635	$self->{load_path} = $save;
1312		1636
1313	return if $self->{deny_save};	1637	return if $self->{deny_save};
1314		1638
		1639	local $self->{last_access} = $self->last_access;#d#
		1640
		1641	cf::async {
		1642	$_->contr->save for $self->players;
		1643	};
		1644
1315	if ($uniq) {	1645	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1648	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1649	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1650	}
1321	}	1651	}
1322		1652
1323	sub swap_out {	1653	sub swap_out {
1324	my ($self) = @_;	1654	my ($self) = @_;
1325		1655
1326	# save first because save cedes	1656	# save first because save cedes
1327	$self->save;	1657	$self->save;
		1658
		1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1660
1329	return if $self->players;	1661	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1662	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1663	return if $self->{deny_save};
1332		1664
…		…
1336		1668
1337	sub reset_at {	1669	sub reset_at {
1338	my ($self) = @_;	1670	my ($self) = @_;
1339		1671
1340	# TODO: safety, remove and allow resettable per-player maps	1672	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};	1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1342	return 1e99 if $self->{deny_reset};	1674	return 1e99 if $self->{deny_reset};
1343		1675
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1678
…		…
1351	my ($self) = @_;	1683	my ($self) = @_;
1352		1684
1353	$self->reset_at <= $cf::RUNTIME	1685	$self->reset_at <= $cf::RUNTIME
1354	}	1686	}
1355		1687
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1688	sub reset {
1378	my ($self) = @_;	1689	my ($self) = @_;
1379		1690
		1691	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1692
1380	return if $self->players;	1693	return if $self->players;
1381	return if $self->{path}{user_rel};#d#	1694	return if $self->isa ("ext::map_per_player");#d#
1382		1695
1383	warn "resetting map ", $self->path;#d#	1696	warn "resetting map ", $self->path;#d#
1384		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
1385	delete $cf::MAP{$self->path};	1708	delete $cf::MAP{$self->path};
		1709
		1710	$self->clear;
1386		1711
1387	$_->clear_links_to ($self) for values %cf::MAP;	1712	$_->clear_links_to ($self) for values %cf::MAP;
1388		1713
1389	$self->unlink_save;	1714	$self->unlink_save;
1390	$self->destroy;	1715	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1718	my $nuke_counter = "aaaa";
1394		1719
1395	sub nuke {	1720	sub nuke {
1396	my ($self) = @_;	1721	my ($self) = @_;
1397		1722
		1723	delete $cf::MAP{$self->path};
		1724
		1725	$self->unlink_save;
		1726
		1727	bless $self, "cf::map";
		1728	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1729	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1730	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1732
		1733	$cf::MAP{$self->path} = $self;
		1734
1401	$self->reset; # polite request, might not happen	1735	$self->reset; # polite request, might not happen
1402	}	1736	}
1403		1737
1404	sub customise_for {	1738	=item cf::map::unique_maps
1405	my ($map, $ob) = @_;
1406		1739
1407	if ($map->per_player) {	1740	Returns an arrayref of paths of all shared maps that have
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1741	instantiated unique items. May block.
1409	}
1410		1742
1411	$map	1743	=cut
1412	}
1413		1744
1414	sub emergency_save {	1745	sub unique_maps() {
1415	local $cf::FREEZE = 1;	1746	my $files = aio_readdir $UNIQUEDIR
		1747	or return;
1416		1748
1417	warn "enter emergency map save\n";	1749	my @paths;
1418		1750
1419	cf::sync_job {	1751	for (@$files) {
1420	warn "begin emergency map save\n";	1752	utf8::decode $_;
1421	$_->save for values %cf::MAP;	1753	next if /\.pst$/;
		1754	next unless /^$PATH_SEP/o;
		1755
		1756	push @paths, cf::map::normalise $_;
1422	};	1757	}
1423		1758
1424	warn "end emergency map save\n";	1759	\@paths
1425	}	1760	}
1426		1761
1427	package cf;	1762	package cf;
1428		1763
1429	=back	1764	=back
1430		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
1431		1792
1432	=head3 cf::object::player	1793	=head3 cf::object::player
1433		1794
1434	=over 4	1795	=over 4
1435		1796
…		…
1475		1836
1476	=item $player_object->enter_link	1837	=item $player_object->enter_link
1477		1838
1478	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}>).
1479		1840
1480	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
1481	I<MUST> call C<leave_link> as soon as possible, though.	1842	I<MUST> call C<leave_link> as soon as possible, though.
1482		1843
		1844	Will never block.
		1845
1483	=item $player_object->leave_link ($map, $x, $y)	1846	=item $player_object->leave_link ($map, $x, $y)
1484		1847
1485	Moves the player out of the specila link map onto the given map. If the	1848	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	1849	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	1850	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	1851	fails, to the emergency map position.
1489		1852
1490	Might block.	1853	Might block.
1491		1854
1492	=cut	1855	=cut
		1856
		1857	sub link_map {
		1858	unless ($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	$LINK_MAP
		1865	}
1493		1866
1494	sub cf::object::player::enter_link {	1867	sub cf::object::player::enter_link {
1495	my ($self) = @_;	1868	my ($self) = @_;
1496		1869
1497	$self->deactivate_recursive;	1870	$self->deactivate_recursive;
1498		1871
1499	return if $self->map == $LINK_MAP;	1872	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		1873
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	1875	if $self->map;
1503		1876
1504	$self->enter_map ($LINK_MAP, 20, 20);	1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	1878	}
1506		1879
1507	sub cf::object::player::leave_link {	1880	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	1881	my ($self, $map, $x, $y) = @_;
1509		1882
1510	my $link_pos = delete $self->{_link_pos};	1883	my $link_pos = delete $self->{_link_pos};
1511		1884
1512	unless ($map) {	1885	unless ($map) {
1513	# restore original map position	1886	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	1887	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	1888	$map = cf::map::find $map;
1516		1889
1517	unless ($map) {	1890	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	1891	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	1892	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	1893	or die "FATAL: cannot load emergency map\n";
1521	}	1894	}
1522	}	1895	}
1523		1896
1524	($x, $y) = (-1, -1)	1897	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	1900	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	1901	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	1902	if $x <=0 && $y <= 0;
1530		1903
1531	$map->load;	1904	$map->load;
		1905	$map->load_diag;
1532		1906
		1907	return unless $self->contr->active;
1533	$self->activate_recursive;	1908	$self->activate_recursive;
		1909
		1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	1911	$self->enter_map ($map, $x, $y);
1535	}	1912	}
1536		1913
1537	cf::player->attach (	1914	cf::player->attach (
1538	on_logout => sub {	1915	on_logout => sub {
…		…
1550		1927
1551	# try to abort aborted map switching on player login :)	1928	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes	1929	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {	1930	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;	1931	$pl->ob->enter_link;
1555	cf::async {	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);
1556	# we need this sleep as the login has a concurrent enter_exit running	1937	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn	1938	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;	1939	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;	1940	$pl->ob->leave_link;
1560	};	1941	})->prio (2);
1561	}	1942	}
1562	},	1943	},
1563	);	1944	);
1564		1945
1565	=item $player_object->goto_map ($path, $x, $y)	1946	=item $player_object->goto ($path, $x, $y)
1566		1947
1567	=cut	1948	=cut
1568		1949
1569	sub cf::object::player::goto_map {	1950	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	1951	my ($self, $path, $x, $y) = @_;
1571		1952
1572	$self->enter_link;	1953	$self->enter_link;
1573		1954
1574	(cf::async {	1955	(async {
1575	$path = new cf::path $path;	1956	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	1957	my $map = cf::map::find $path;
1578	$map = $map->customise_for ($self) if $map;	1958	$map = $map->customise_for ($self) if $map;
1579		1959	$map
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	1960	} or
1581	# if $map;
1582
1583	$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);
1584		1962
1585	$self->leave_link ($map, $x, $y);	1963	$self->leave_link ($map, $x, $y);
1586	})->prio (1);	1964	})->prio (1);
1587	}	1965	}
1588		1966
…		…
1592		1970
1593	sub parse_random_map_params {	1971	sub parse_random_map_params {
1594	my ($spec) = @_;	1972	my ($spec) = @_;
1595		1973
1596	my $rmp = { # defaults	1974	my $rmp = { # defaults
1597	xsize => 10,	1975	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	1976	ysize => (cf::rndm 15, 40),
		1977	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1978	#layout => string,
1599	};	1979	};
1600		1980
1601	for (split /\n/, $spec) {	1981	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	1982	my ($k, $v) = split /\s+/, $_, 2;
1603		1983
…		…
1607	$rmp	1987	$rmp
1608	}	1988	}
1609		1989
1610	sub prepare_random_map {	1990	sub prepare_random_map {
1611	my ($exit) = @_;	1991	my ($exit) = @_;
		1992
		1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		1994
1613	# all this does is basically replace the /! path by	1995	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	1996	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	1997	# that depends on the exit object
1616		1998
1617	my $rmp = parse_random_map_params $exit->msg;	1999	my $rmp = parse_random_map_params $exit->msg;
1618		2000
1619	if ($exit->map) {	2001	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2002	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2003	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2004	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2005	$rmp->{origin_y} = $exit->y;
1624	}	2006	}
1625		2007
1626	$rmp->{random_seed} ||= $exit->random_seed;	2008	$rmp->{random_seed} ||= $exit->random_seed;
1627		2009
1628	my $data = cf::to_json $rmp;	2010	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2011	my $md5 = Digest::MD5::md5_hex $data;
		2012	my $meta = "$RANDOMDIR/$md5.meta";
1630		2013
1631	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) {
1632	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;
1633		2018
1634	$exit->slaying ("?random/$md5");	2019	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2020	$exit->msg (undef);
1636	}	2021	}
1637	}	2022	}
…		…
1639	sub cf::object::player::enter_exit {	2024	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2025	my ($self, $exit) = @_;
1641		2026
1642	return unless $self->type == cf::PLAYER;	2027	return unless $self->type == cf::PLAYER;
1643		2028
		2029	if ($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
1644	$self->enter_link;	2040	$self->enter_link;
1645		2041
1646	(cf::async {	2042	(async {
		2043	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2044	unless (eval {
1648	prepare_random_map $exit	2045	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2046
1654	1;	2047	1;
1655	}) {	2048	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2049	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "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. "
1658	. "Please report this to the dungeon master",	2051	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2052	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2053
1661	warn "ERROR in enter_exit: $@";	2054	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2055	$self->leave_link;
1663	}	2056	}
1664	})->prio (1);	2057	})->prio (1);
…		…
1677		2070
1678	sub cf::client::send_drawinfo {	2071	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2072	my ($self, $text, $flags) = @_;
1680		2073
1681	utf8::encode $text;	2074	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2076	}
1684		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	}
1685		2090
1686	=item $success = $client->query ($flags, "text", \&cb)	2091	=item $success = $client->query ($flags, "text", \&cb)
1687		2092
1688	Queues a query to the client, calling the given callback with	2093	Queues a query to the client, calling the given callback with
1689	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>,
…		…
1718	# get handled first	2123	# get handled first
1719	my $queue = delete $ns->{query_queue}	2124	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2125	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2126
1722	(shift @$queue)->[1]->($msg);	2127	(shift @$queue)->[1]->($msg);
		2128	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2129
1724	push @{ $ns->{query_queue} }, @$queue;	2130	push @{ $ns->{query_queue} }, @$queue;
1725		2131
1726	if (@{ $ns->{query_queue} } == @$queue) {	2132	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2133	if (@$queue) {
…		…
1731	}	2137	}
1732	}	2138	}
1733	},	2139	},
1734	);	2140	);
1735		2141
1736	=item $client->coro (\&cb)	2142	=item $client->async (\&cb)
1737		2143
1738	Create a new coroutine, running the specified callback. The coroutine will	2144	Create a new coroutine, running the specified callback. The coroutine will
1739	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,
1740	or loss of connection).	2146	or loss of connection).
1741		2147
1742	=cut	2148	=cut
1743		2149
1744	sub cf::client::coro {	2150	sub cf::client::async {
1745	my ($self, $cb) = @_;	2151	my ($self, $cb) = @_;
1746		2152
1747	my $coro = &cf::async ($cb);	2153	my $coro = &Coro::async ($cb);
1748		2154
1749	$coro->on_destroy (sub {	2155	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2156	delete $self->{_coro}{$coro+0};
1751	});	2157	});
1752		2158
…		…
1785		2191
1786	# here we export the classes and methods available to script code	2192	# here we export the classes and methods available to script code
1787		2193
1788	=pod	2194	=pod
1789		2195
1790	The following fucntions and emthods are available within a safe environment:	2196	The following functions and methods are available within a safe environment:
1791		2197
1792	cf::object contr pay_amount pay_player map	2198	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2199	cf::object::player player
1794	cf::player peaceful	2200	cf::player peaceful
1795	cf::map trigger	2201	cf::map trigger
…		…
1880	#############################################################################	2286	#############################################################################
1881		2287
1882	=head2 EXTENSION DATABASE SUPPORT	2288	=head2 EXTENSION DATABASE SUPPORT
1883		2289
1884	Crossfire maintains a very simple database for extension use. It can	2290	Crossfire maintains a very simple database for extension use. It can
1885	currently store anything that can be serialised using Storable, which	2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1886	excludes objects.	2292	convert to/from binary).
1887		2293
1888	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
1889	using it, it should be unique.	2295	using it, it should be unique.
1890		2296
1891	=over 4	2297	=over 4
1892		2298
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2299	=item $value = cf::db_get $family => $key
1900		2300
1901	Returns a single value from the database	2301	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2302
1908	=item cf::db_put $family => $key => $value	2303	=item cf::db_put $family => $key => $value
1909		2304
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2305	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2306
1921	=cut	2307	=cut
1922		2308
1923	our $DB;	2309	our $DB;
1924		2310
1925	{	2311	sub db_init {
1926	my $path = cf::localdir . "/database.pst";	2312	unless ($DB) {
		2313	$DB = BDB::db_create $DB_ENV;
1927		2314
1928	sub db_load() {	2315	cf::sync_job {
1929	$DB = stat $path ? Storable::retrieve $path : { };	2316	eval {
1930	}	2317	$DB->set_flags (BDB::CHKSUM);
1931		2318
1932	my $pid;	2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1933		2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1934	sub db_save() {	2321	cf::cleanup "db_open(db): $!" if $!;
1935	waitpid $pid, 0 if $pid;	2322	};
1936	if (0 == ($pid = fork)) {	2323	cf::cleanup "db_open(db): $@" if $@;
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2324	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	2325	}
		2326	}
1954		2327
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {	2328	sub db_get($$) {
1961	@_ >= 2	2329	my $key = "$_[0]/$_[1]";
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		2330
		2331	cf::sync_job {
		2332	BDB::db_get $DB, undef, $key, my $data;
		2333
		2334	$! ? ()
		2335	: $data
		2336	}
		2337	}
		2338
1966	sub db_put($$;$) {	2339	sub db_put($$$) {
1967	if (@_ >= 3) {	2340	BDB::dbreq_pri 4;
1968	$DB->{$_[0]}{$_[1]} = $_[2];	2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1969	} else {	2342	}
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		2343
1975	cf::global->attach (	2344	=item cf::cache $id => [$paths...], $processversion => $process
1976	prio => 10000,	2345
1977	on_cleanup => sub {	2346	Generic caching function that returns the value of the resource $id,
1978	db_sync;	2347	caching and regenerating as required.
		2348
		2349	This function can block.
		2350
		2351	=cut
		2352
		2353	sub cache {
		2354	my ($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 "$src->[$_]: $!";
1979	},	2376	}
1980	);	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"
1981	}	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
1982		2459
1983	#############################################################################	2460	#############################################################################
1984	# 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	}
1985		2549
1986	sub cfg_load {	2550	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2551	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2552	or return;
1989		2553
1990	local $/;	2554	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2555	*CFG = YAML::Syck::Load <$fh>;
1992		2556
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		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
1995	if (exists $CFG{mlockall}) {	2562	if (exists $CFG{mlockall}) {
1996	eval {	2563	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2565	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2566	};
2000	warn $@ if $@;	2567	warn $@ if $@;
2001	}	2568	}
2002	}	2569	}
2003		2570
2004	sub main {	2571	sub main {
2005	# we must not ever block the main coroutine	2572	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2573	local $Coro::idle = sub {
2007	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#
2008	(Coro::unblock_sub {	2575	(async {
2009	Event::one_event;	2576	Event::one_event;
2010	})->();	2577	})->prio (Coro::PRIO_MAX);
2011	};	2578	};
2012		2579
2013	cfg_load;	2580	cfg_load;
2014	db_load;	2581	db_init;
2015	load_extensions;	2582	load_extensions;
		2583
		2584	$TICK_WATCHER->start;
2016	Event::loop;	2585	Event::loop;
2017	}	2586	}
2018		2587
2019	#############################################################################	2588	#############################################################################
2020	# initialisation	2589	# initialisation and cleanup
2021		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
2022	sub reload() {	2646	sub do_reload_perl() {
2023	# can/must only be called in main	2647	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2648	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2649	warn "can only reload from main coroutine";
2026	return;	2650	return;
2027	}	2651	}
2028		2652
2029	warn "reloading...";	2653	warn "reloading...";
2030		2654
2031	local $FREEZE = 1;	2655	warn "entering sync_job";
		2656
		2657	cf::sync_job {
		2658	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2659	cf::emergency_save;
		2660	cf::write_runtime; # external watchdog should not bark
2033		2661
2034	eval {	2662	warn "syncing database to disk";
		2663	BDB::db_env_txn_checkpoint $DB_ENV;
		2664
2035	# 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
2036		2666
2037	# cancel all watchers	2667	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2668	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2670	}
2041		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
2042	# cancel all extension coros	2683	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2684	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2685	%EXT_CORO = ();
2045		2686
2046	# unload all extensions	2687	warn "removing commands";
2047	for (@exts) {	2688	%COMMAND = ();
		2689
		2690	warn "removing ext commands";
		2691	%EXTCMD = ();
		2692
		2693	warn "unloading/nuking all extensions";
		2694	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2695	warn "... unloading $pkg";
2049	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: $@";
2050	}	2702	}
2051		2703
		2704	warn "... nuking $pkg";
		2705	Symbol::delete_package $pkg;
		2706	}
		2707
2052	# unload all modules loaded from $LIBDIR	2708	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2709	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2711
2056	warn "removing <$k>";	2712	warn "... unloading $k";
2057	delete $INC{$k};	2713	delete $INC{$k};
2058		2714
2059	$k =~ s/\.pm$//;	2715	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2716	$k =~ s/\//::/g;
2061		2717
…		…
2064	}	2720	}
2065		2721
2066	Symbol::delete_package $k;	2722	Symbol::delete_package $k;
2067	}	2723	}
2068		2724
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2725	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2726	Symbol::delete_package "safe::$_"
2075	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);
2076		2728
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2729	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2730	delete $INC{"cf.pm"};
		2731	delete $INC{"cf/pod.pm"};
2082		2732
2083	# don't, removes xs symbols, too,	2733	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2734	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2735	#Symbol::delete_package __PACKAGE__;
2086		2736
2087	# reload cf.pm	2737	warn "unload completed, starting to reload now";
		2738
2088	warn "reloading cf.pm";	2739	warn "reloading cf.pm";
2089	require cf;	2740	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2742
2092	# load config and database again	2743	warn "loading config and database again";
2093	cf::cfg_load;	2744	cf::cfg_load;
2094	cf::db_load;
2095		2745
2096	# load extensions
2097	warn "load extensions";	2746	warn "loading extensions";
2098	cf::load_extensions;	2747	cf::load_extensions;
2099		2748
2100	# reattach attachments to objects	2749	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2750	_global_reattach; # objects, sockets
2102	_global_reattach;	2751	warn "reattaching attachments to maps";
2103	};	2752	reattach $_ for values %MAP;
		2753	warn "reattaching attachments to players";
		2754	reattach $_ for values %PLAYER;
2104		2755
2105	if ($@) {	2756	warn "leaving sync_job";
		2757
		2758	1
		2759	} or do {
2106	warn $@;	2760	warn $@;
2107	warn "error while reloading, exiting.";	2761	warn "error while reloading, exiting.";
2108	exit 1;	2762	exit 1;
2109	}	2763	};
2110		2764
2111	warn "reloaded successfully";	2765	warn "reloaded";
2112	};	2766	};
2113		2767
2114	#############################################################################	2768	our $RELOAD_WATCHER; # used only during reload
2115		2769
2116	unless ($LINK_MAP) {	2770	sub reload_perl() {
2117	$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.
2118		2773
2119	$LINK_MAP->width (41);	2774	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	2775	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	2776	after => 0,
		2777	data => WF_AUTOCANCEL,
2129	cb => sub {	2778	cb => sub {
2130	$_[0]->w->cancel;	2779	do_reload_perl;
2131		2780	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	2781	},
2150		2782	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	2783	}
2156
2157	register "<global>", __PACKAGE__;
2158		2784
2159	register_command "reload" => sub {	2785	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2786	my ($who, $arg) = @_;
2161		2787
2162	if ($who->flag (FLAG_WIZ)) {	2788	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	2789	$who->message ("reloading server.");
		2790	async { reload_perl };
2166	}	2791	}
2167	};	2792	};
2168		2793
2169	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	}
2170		2818
2171	$TICK_WATCHER = Event->timer (	2819	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2820	reentrant => 0,
		2821	parked => 1,
2173	prio => 0,	2822	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2823	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2824	data => WF_AUTOCANCEL,
2176	cb => sub {	2825	cb => sub {
2177	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
2178	cf::server_tick; # one server iteration	2834	cf::server_tick; # one server iteration
		2835
2179	$RUNTIME += $TICK;	2836	$RUNTIME += $TICK;
2180	}
2181
2182	$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#
2183		2849
2184	# 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
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2186		2852
2187	$TICK_WATCHER->at ($NEXT_TICK);	2853	$TICK_WATCHER->at ($NEXT_TICK);
2188	$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;
2189	},	2864	},
2190	);	2865	);
2191		2866
		2867	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	2868	BDB::max_poll_time $TICK * 0.1;
2193		2869	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	2870	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	2871	fd => BDB::poll_fileno,
2196	poll => 'r',	2872	poll => 'r',
2197	prio => 5,	2873	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2204	after => 0,	2875	cb => \&BDB::poll_cb,
2205	interval => 10,	2876	);
2206	cb => sub {	2877	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	2878
2208	write_runtime	2879	BDB::set_sync_prepare {
2209	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 $@;
2210	})->();	2913	};
2211	},	2914	}
2212	);	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;
2213		2972
2214	END { cf::emergency_save }	2973	END { cf::emergency_save }
2215		2974
2216	1	2975	1
2217		2976

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