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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.128 by root, Wed Jan 3 00:28:47 2007 UTC vs.
Revision 1.261 by root, Fri Apr 27 20:09:48 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	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
220	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.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	278	}
249		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	$guard
		294	}
		295
250	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
251		297
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
254		301
255	=cut	302	=cut
256		303
257	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		305
266	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
267		307
268	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
269	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
…		…
283	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
285		325
286	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	327	# (but this is cancel-safe)
288	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
289		329
290	my $busy = 1;	330	my $busy = 1;
291	my @res;	331	my @res;
292		332
293	(Coro::async {	333	(async {
294	@res = eval { $job->() };	334	@res = eval { $job->() };
295	warn $@ if $@;	335	warn $@ if $@;
296	undef $busy;	336	undef $busy;
297	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
298		338
299	while ($busy) {	339	while ($busy) {
300	Coro::cede_notself;	340	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	341	}
303		342
304	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
305	} else {	344	} else {
306	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
307		346
308	$job->()	347	$job->()
309	}	348	}
310	}	349	}
311		350
312	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
313		352
314	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
316		355
317	=cut	356	=cut
318		357
319	sub coro(&) {	358	sub async_ext(&) {
320	my $cb = shift;	359	my $cb = shift;
321		360
322	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
323		362
324	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
326	});	365	});
327	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
328		367
329	$coro	368	$coro
330	}	369	}
331		370
332	sub write_runtime {	371	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
334		375
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	377	or return;
337		378
		379	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	384	and return;
341		385
		386	# always fsync - this file is important
342	aio_fsync $fh	387	aio_fsync $fh
343	and return;	388	and return;
344		389
345	close $fh	390	close $fh
346	or return;	391	or return;
…		…
349	and return;	394	and return;
350		395
351	1	396	1
352	}	397	}
353		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
354	=back	410	=back
355		411
356	=cut	412	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		413
478	#############################################################################	414	#############################################################################
479		415
480	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
481		417
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	544	our @CB_MAP = ();
609		545
610	my %attachment;	546	my %attachment;
611		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
612	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
614		556
615	use sort 'stable';	557	use sort 'stable';
616		558
…		…
787	# object support	729	# object support
788		730
789	sub reattach {	731	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		736
793	my $registry = $obj->registry;	737	my $registry = $obj->registry;
794		738
795	@$registry = ();	739	@$registry = ();
796		740
…		…
843	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
844		788
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	793	close $fh;
850		794
851	if (@$objs) {	795	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	801	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
859	}	803	}
860	} else {	804	} else {
861	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
928	=cut	872	=cut
929		873
930	sub register_extcmd {	874	sub register_extcmd {
931	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
932		876
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
937	}	878	}
938		879
939	cf::player->attach (	880	cf::player->attach (
940	on_command => sub {	881	on_command => sub {
941	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
954		895
955	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
956		897
957	if (ref $msg) {	898	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	902	}
962	}	903	}
963	} else {	904	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		907
967	cf::override;	908	cf::override;
968	},	909	},
969	);	910	);
970		911
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	912	sub load_extension {
978	my ($path) = @_;	913	my ($path) = @_;
979		914
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	916	my $base = $1;
982	my $pkg = $1;	917	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
985		920
986	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
987		922
988	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
989	or die "$path: $!";	924	or die "$path: $!";
990		925
991	my $source =	926	my $source =
992	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
995	. "\n};\n1";	930	. "\n};\n1";
996		931
997	eval $source	932	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	934	: "extension disabled.\n";
1000		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	936	warn $@;
1002	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1003		938	exit 1;
1004	# no strict 'refs';	939	}
1005	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	941	}
1020		942
1021	# remove commands	943	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	944	}
1046		945
1047	sub load_extensions {	946	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	948	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1054	}	953	}
1055	}	954	}
1056		955
1057	#############################################################################	956	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		957
1095	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1096		959
1097	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1098		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1099	=head3 cf::player	968	=head3 cf::player
1100		969
1101	=over 4	970	=over 4
1102		971
1103	=item cf::player::exists $login	972	=item cf::player::find $login
1104		973
1105	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1106		975
1107	=cut	976	=cut
1108		977
1109	sub cf::player::exists($) {	978	sub playerdir($) {
1110	cf::player::find $_[0]	979	"$PLAYERDIR/"
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	981	}
1113		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1115		1155
1116	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1117		1157
1118	=cut	1158	=cut
1119		1159
1120	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1121	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1122		1162
1123	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1124		1164
1125	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1126	}	1207	}
1127		1208
1128	=back	1209	=back
1129
1130		1210
1131	=head3 cf::map	1211	=head3 cf::map
1132		1212
1133	=over 4	1213	=over 4
1134		1214
…		…
1137	package cf::map;	1217	package cf::map;
1138		1218
1139	use Fcntl;	1219	use Fcntl;
1140	use Coro::AIO;	1220	use Coro::AIO;
1141		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1142	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1144		1228
1145	sub generate_random_map {	1229	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1232	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1162	}	1374	}
1163		1375
1164	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1165	# all maps in C++...	1377	# all maps in C++...
1166	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1168		1380
1169	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1171	}	1383	}
1172		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1173	sub try_load_header($) {	1393	sub load_header_from($) {
1174	my ($path) = @_;	1394	my ($self, $path) = @_;
1175		1395
1176	utf8::encode $path;	1396	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1178	or return;	1401	or return;
1179		1402
1180	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1181	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1182		1449
1183	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1184	or return;	1451	unless $self->default_region;
1185		1452
1186	$map->{load_path} = $path;	1453	1
1187
1188	$map
1189	}	1454	}
1190		1455
1191	sub find_map;	1456	sub find;
1192	sub find_map {	1457	sub find {
1193	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1194		1459
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1461
1200	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1201		1463
1202	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1204		1466	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1467	or return;
1220		1468
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1470
1234	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1477	$map->reset;
1236	undef $guard;	1478	undef $guard;
1237	$map = find_map $path	1479	return find $path;
1238	or return;
1239	}	1480	}
1240		1481
1241	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1242	}	1483	}
1243	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1244		1488
1245	sub load {	1489	sub load {
1246	my ($self) = @_;	1490	my ($self) = @_;
1247		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1248	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1250		1498
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1500
1253	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1254		1502
1255	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1256	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1509	or return;
1258		1510
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1512	if delete $self->{load_original};
1261		1513
1262	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1515	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1517	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1267	}	1519	}
1268	}	1520	}
1269		1521
		1522	Coro::cede;
1270	# now do the right thing for maps	1523	# now do the right thing for maps
1271	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1283	$self->activate;	1536	$self->activate;
1284	}	1537	}
1285		1538
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1540	}
1288		1541
1289	sub load_map_sync {	1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1290	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1291		1580
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1293		1583
1294	cf::sync_job {	1584	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1296	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
1297	$map->load;	1608	$map->load;
1298	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1299	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1300	}	1618	}
1301		1619
1302	sub save {	1620	sub save {
1303	my ($self) = @_;	1621	my ($self) = @_;
1304		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1305	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1306		1626
1307	return unless $self->dirty;	1627	return unless $self->dirty;
1308		1628
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1631
1312	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1313		1633
1314	return if $self->{deny_save};	1634	return if $self->{deny_save};
1315		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1316	if ($uniq) {	1642	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1645	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1647	}
1322	}	1648	}
1323		1649
1324	sub swap_out {	1650	sub swap_out {
1325	my ($self) = @_;	1651	my ($self) = @_;
		1652
		1653	# save first because save cedes
		1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1326		1657
1327	return if $self->players;	1658	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	1660	return if $self->{deny_save};
1330		1661
1331	$self->save;
1332	$self->clear;	1662	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	1663	$self->in_memory (cf::MAP_SWAPPED);
1334	}	1664	}
1335		1665
1336	sub reset_at {	1666	sub reset_at {
1337	my ($self) = @_;	1667	my ($self) = @_;
1338		1668
1339	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1342		1672
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1675
…		…
1350	my ($self) = @_;	1680	my ($self) = @_;
1351		1681
1352	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1353	}	1683	}
1354		1684
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1685	sub reset {
1377	my ($self) = @_;	1686	my ($self) = @_;
1378		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1379	return if $self->players;	1690	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1381		1692
1382	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1383		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1384	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1385		1708
1386	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1387		1710
1388	$self->unlink_save;	1711	$self->unlink_save;
1389	$self->destroy;	1712	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1393		1716
1394	sub nuke {	1717	sub nuke {
1395	my ($self) = @_;	1718	my ($self) = @_;
1396		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1400	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1401	}	1733	}
1402		1734
1403	sub customise_for {	1735	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1736
1406	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1408	}
1409		1739
1410	$map	1740	=cut
1411	}
1412		1741
1413	sub emergency_save {	1742	sub unique_maps() {
1414	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1415		1745
1416	warn "enter emergency map save\n";	1746	my @paths;
1417		1747
1418	cf::sync_job {	1748	for (@$files) {
1419	warn "begin emergency map save\n";	1749	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1421	};	1754	}
1422		1755
1423	warn "end emergency map save\n";	1756	\@paths
1424	}	1757	}
1425		1758
1426	package cf;	1759	package cf;
1427		1760
1428	=back	1761	=back
1429		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1430		1789
1431	=head3 cf::object::player	1790	=head3 cf::object::player
1432		1791
1433	=over 4	1792	=over 4
1434		1793
…		…
1474		1833
1475	=item $player_object->enter_link	1834	=item $player_object->enter_link
1476		1835
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1837
1479	The player should be reaosnably safe there for short amounts of time. You	1838	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1481		1840
		1841	Will never block.
		1842
1482	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1483		1844
1484	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1848	fails, to the emergency map position.
1488		1849
1489	Might block.	1850	Might block.
1490		1851
1491	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1492		1863
1493	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1865	my ($self) = @_;
1495		1866
1496	$self->deactivate_recursive;	1867	$self->deactivate_recursive;
1497		1868
1498	return if $self->map == $LINK_MAP;	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1870
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1872	if $self->map;
1502		1873
1503	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1875	}
1505		1876
1506	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1508		1879
1509	my $link_pos = delete $self->{_link_pos};	1880	my $link_pos = delete $self->{_link_pos};
1510		1881
1511	unless ($map) {	1882	unless ($map) {
1512	# restore original map position	1883	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	1884	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	1885	$map = cf::map::find $map;
1515		1886
1516	unless ($map) {	1887	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	1888	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	1889	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	1890	or die "FATAL: cannot load emergency map\n";
1520	}	1891	}
1521	}	1892	}
1522		1893
1523	($x, $y) = (-1, -1)	1894	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1529		1900
1530	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1531		1903
		1904	return unless $self->contr->active;
1532	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1534	}	1909	}
1535		1910
1536	cf::player->attach (	1911	cf::player->attach (
1537	on_logout => sub {	1912	on_logout => sub {
…		…
1549		1924
1550	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1926	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1554	cf::async {	1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
1555	# we need this sleep as the login has a concurrent enter_exit running	1934	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1935	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1559	};	1938	})->prio (2);
1560	}	1939	}
1561	},	1940	},
1562	);	1941	);
1563		1942
1564	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1565		1944
1566	=cut	1945	=cut
1567		1946
1568	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1570		1949
1571	$self->enter_link;	1950	$self->enter_link;
1572		1951
1573	(cf::async {	1952	(async {
1574	$path = new cf::path $path;	1953	my $map = eval {
1575
1576	my $map = cf::map::find_map $path->as_string;	1954	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1578		1956	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1959
1584	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1961	})->prio (1);
1586	}	1962	}
1587		1963
…		…
1591		1967
1592	sub parse_random_map_params {	1968	sub parse_random_map_params {
1593	my ($spec) = @_;	1969	my ($spec) = @_;
1594		1970
1595	my $rmp = { # defaults	1971	my $rmp = { # defaults
1596	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1598	};	1976	};
1599		1977
1600	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1602		1980
…		…
1606	$rmp	1984	$rmp
1607	}	1985	}
1608		1986
1609	sub prepare_random_map {	1987	sub prepare_random_map {
1610	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1991
1612	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1994	# that depends on the exit object
1615		1995
1616	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1617		1997
1618	if ($exit->map) {	1998	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1623	}	2003	}
1624		2004
1625	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1626		2006
1627	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1629		2010
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1632		2015
1633	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2017	$exit->msg (undef);
1635	}	2018	}
1636	}	2019	}
…		…
1638	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1640		2023
1641	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1642		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1643	$self->enter_link;	2037	$self->enter_link;
1644		2038
1645	(cf::async {	2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2041	unless (eval {
1647	prepare_random_map $exit	2042	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2043
1653	1;	2044	1;
1654	}) {	2045	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2050
1660	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2052	$self->leave_link;
1662	}	2053	}
1663	})->prio (1);	2054	})->prio (1);
…		…
1676		2067
1677	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1679		2070
1680	utf8::encode $text;	2071	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2073	}
1683		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1684		2087
1685	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1686		2089
1687	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1714	my ($ns, $msg) = @_;	2117	my ($ns, $msg) = @_;
1715		2118
1716	# this weird shuffling is so that direct followup queries	2119	# this weird shuffling is so that direct followup queries
1717	# get handled first	2120	# get handled first
1718	my $queue = delete $ns->{query_queue}	2121	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that cna happen, but we saw a crash here	2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2123
1721	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2126
1723	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1724		2128
1725	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2130	if (@$queue) {
…		…
1730	}	2134	}
1731	}	2135	}
1732	},	2136	},
1733	);	2137	);
1734		2138
1735	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1736		2140
1737	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	2143	or loss of connection).
1740		2144
1741	=cut	2145	=cut
1742		2146
1743	sub cf::client::coro {	2147	sub cf::client::async {
1744	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1745		2149
1746	my $coro = &cf::async ($cb);	2150	my $coro = &Coro::async ($cb);
1747		2151
1748	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1750	});	2154	});
1751		2155
…		…
1784		2188
1785	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1786		2190
1787	=pod	2191	=pod
1788		2192
1789	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1790		2194
1791	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1792	cf::object::player player	2196	cf::object::player player
1793	cf::player peaceful	2197	cf::player peaceful
1794	cf::map trigger	2198	cf::map trigger
…		…
1879	#############################################################################	2283	#############################################################################
1880		2284
1881	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1882		2286
1883	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1884	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1885	excludes objects.	2289	convert to/from binary).
1886		2290
1887	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1888	using it, it should be unique.	2292	using it, it should be unique.
1889		2293
1890	=over 4	2294	=over 4
1891		2295
1892	=item $hashref = cf::db_get $family
1893
1894	Return a hashref for use by the extension C<$family>, which can be
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897
1898	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1899		2297
1900	Returns a single value from the database	2298	Returns a single value from the database.
1901
1902	=item cf::db_put $family => $hashref
1903
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906		2299
1907	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1908		2301
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919		2303
1920	=cut	2304	=cut
1921		2305
1922	our $DB;	2306	our $DB;
1923		2307
1924	{	2308	sub db_init {
1925	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1926		2311
1927	sub db_load() {	2312	cf::sync_job {
1928	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
1929	}	2314	$DB->set_flags (BDB::CHKSUM);
1930		2315
1931	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1932		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1933	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1934	waitpid $pid, 0 if $pid;	2319	};
1935	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
1936	$DB->{_meta}{version} = 1;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}	2321	};
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});	2322	}
		2323	}
1953		2324
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}
1958
1959	sub db_get($;$) {	2325	sub db_get($$) {
1960	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1961	? $DB->{$_[0]}{$_[1]}
1962	: ($DB->{$_[0]} ||= { })
1963	}
1964		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1965	sub db_put($$;$) {	2336	sub db_put($$$) {
1966	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1967	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1968	} else {	2339	}
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973		2340
1974	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1975	prio => 10000,	2342
1976	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1977	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1978	},	2373	}
1979	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1980	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	local $SIG{__WARN__};
		2441	eval {
		2442	local $SIG{__DIE__};
		2443	close $fh1;
		2444
		2445	my @res = eval { $cb->(@args) };
		2446	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2447	};
		2448
		2449	warn $@ if $@;
		2450	_exit 0;
		2451	}
		2452	}
		2453
		2454
1981		2455
1982	#############################################################################	2456	#############################################################################
1983	# the server's main()	2457	# the server's init and main functions
		2458
		2459	sub load_facedata($) {
		2460	my ($path) = @_;
		2461
		2462	warn "loading facedata from $path\n";
		2463
		2464	my $facedata;
		2465	0 < aio_load $path, $facedata
		2466	or die "$path: $!";
		2467
		2468	$facedata = Coro::Storable::thaw $facedata;
		2469
		2470	$facedata->{version} == 2
		2471	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2472
		2473	{
		2474	my $faces = $facedata->{faceinfo};
		2475
		2476	while (my ($face, $info) = each %$faces) {
		2477	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2478	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2479	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2480	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2481	Coro::cede;
		2482	}
		2483
		2484	while (my ($face, $info) = each %$faces) {
		2485	next unless $info->{smooth};
		2486	my $idx = cf::face::find $face
		2487	or next;
		2488	if (my $smooth = cf::face::find $info->{smooth}) {
		2489	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2490	} else {
		2491	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2492	}
		2493	Coro::cede;
		2494	}
		2495	}
		2496
		2497	{
		2498	my $anims = $facedata->{animinfo};
		2499
		2500	while (my ($anim, $info) = each %$anims) {
		2501	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2502	Coro::cede;
		2503	}
		2504
		2505	cf::anim::invalidate_all; # d'oh
		2506	}
		2507
		2508	1
		2509	}
		2510
		2511	sub reload_regions {
		2512	load_resource_file "$MAPDIR/regions"
		2513	or die "unable to load regions file\n";
		2514	}
		2515
		2516	sub reload_facedata {
		2517	load_facedata "$DATADIR/facedata"
		2518	or die "unable to load facedata\n";
		2519	}
		2520
		2521	sub reload_archetypes {
		2522	load_resource_file "$DATADIR/archetypes"
		2523	or die "unable to load archetypes\n";
		2524	}
		2525
		2526	sub reload_treasures {
		2527	load_resource_file "$DATADIR/treasures"
		2528	or die "unable to load treasurelists\n";
		2529	}
		2530
		2531	sub reload_resources {
		2532	warn "reloading resource files...\n";
		2533
		2534	reload_regions;
		2535	reload_facedata;
		2536	reload_archetypes;
		2537	reload_treasures;
		2538
		2539	warn "finished reloading resource files\n";
		2540	}
		2541
		2542	sub init {
		2543	reload_resources;
		2544	}
1984		2545
1985	sub cfg_load {	2546	sub cfg_load {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	2547	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	2548	or return;
1988		2549
1989	local $/;	2550	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	2551	*CFG = YAML::Syck::Load <$fh>;
		2552
		2553	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2554
		2555	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2556	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2557
		2558	if (exists $CFG{mlockall}) {
		2559	eval {
		2560	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2561	and die "WARNING: m(un)lockall failed: $!\n";
		2562	};
		2563	warn $@ if $@;
		2564	}
1991	}	2565	}
1992		2566
1993	sub main {	2567	sub main {
1994	# we must not ever block the main coroutine	2568	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	2569	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2570	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	2571	(async {
1998	Event::one_event;	2572	Event::one_event;
1999	})->();	2573	})->prio (Coro::PRIO_MAX);
2000	};	2574	};
2001		2575
2002	cfg_load;	2576	cfg_load;
2003	db_load;	2577	db_init;
2004	load_extensions;	2578	load_extensions;
		2579
		2580	$TICK_WATCHER->start;
2005	Event::loop;	2581	Event::loop;
2006	}	2582	}
2007		2583
2008	#############################################################################	2584	#############################################################################
2009	# initialisation	2585	# initialisation and cleanup
2010		2586
		2587	# install some emergency cleanup handlers
		2588	BEGIN {
		2589	for my $signal (qw(INT HUP TERM)) {
		2590	Event->signal (
		2591	reentrant => 0,
		2592	data => WF_AUTOCANCEL,
		2593	signal => $signal,
		2594	prio => 0,
		2595	cb => sub {
		2596	cf::cleanup "SIG$signal";
		2597	},
		2598	);
		2599	}
		2600	}
		2601
		2602	sub emergency_save() {
		2603	my $freeze_guard = cf::freeze_mainloop;
		2604
		2605	warn "enter emergency perl save\n";
		2606
		2607	cf::sync_job {
		2608	# use a peculiar iteration method to avoid tripping on perl
		2609	# refcount bugs in for. also avoids problems with players
		2610	# and maps saved/destroyed asynchronously.
		2611	warn "begin emergency player save\n";
		2612	for my $login (keys %cf::PLAYER) {
		2613	my $pl = $cf::PLAYER{$login} or next;
		2614	$pl->valid or next;
		2615	$pl->save;
		2616	}
		2617	warn "end emergency player save\n";
		2618
		2619	warn "begin emergency map save\n";
		2620	for my $path (keys %cf::MAP) {
		2621	my $map = $cf::MAP{$path} or next;
		2622	$map->valid or next;
		2623	$map->save;
		2624	}
		2625	warn "end emergency map save\n";
		2626
		2627	warn "begin emergency database checkpoint\n";
		2628	BDB::db_env_txn_checkpoint $DB_ENV;
		2629	warn "end emergency database checkpoint\n";
		2630	};
		2631
		2632	warn "leave emergency perl save\n";
		2633	}
		2634
		2635	sub post_cleanup {
		2636	my ($make_core) = @_;
		2637
		2638	warn Carp::longmess "post_cleanup backtrace"
		2639	if $make_core;
		2640	}
		2641
2011	sub reload() {	2642	sub do_reload_perl() {
2012	# can/must only be called in main	2643	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	2644	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	2645	warn "can only reload from main coroutine";
2015	return;	2646	return;
2016	}	2647	}
2017		2648
2018	warn "reloading...";	2649	warn "reloading...";
2019		2650
2020	local $FREEZE = 1;	2651	warn "entering sync_job";
		2652
		2653	cf::sync_job {
		2654	cf::write_runtime; # external watchdog should not bark
2021	cf::emergency_save;	2655	cf::emergency_save;
		2656	cf::write_runtime; # external watchdog should not bark
2022		2657
2023	eval {	2658	warn "syncing database to disk";
		2659	BDB::db_env_txn_checkpoint $DB_ENV;
		2660
2024	# if anything goes wrong in here, we should simply crash as we already saved	2661	# if anything goes wrong in here, we should simply crash as we already saved
2025		2662
2026	# cancel all watchers	2663	warn "cancelling all WF_AUTOCANCEL watchers";
2027	for (Event::all_watchers) {	2664	for (Event::all_watchers) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	2665	$_->cancel if $_->data & WF_AUTOCANCEL;
2029	}	2666	}
2030		2667
		2668	warn "flushing outstanding aio requests";
		2669	for (;;) {
		2670	BDB::flush;
		2671	IO::AIO::flush;
		2672	Coro::cede;
		2673	last unless IO::AIO::nreqs || BDB::nreqs;
		2674	warn "iterate...";
		2675	}
		2676
		2677	++$RELOAD;
		2678
2031	# cancel all extension coros	2679	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	2680	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	2681	%EXT_CORO = ();
2034		2682
2035	# unload all extensions	2683	warn "removing commands";
2036	for (@exts) {	2684	%COMMAND = ();
		2685
		2686	warn "removing ext commands";
		2687	%EXTCMD = ();
		2688
		2689	warn "unloading/nuking all extensions";
		2690	for my $pkg (@EXTS) {
2037	warn "unloading <$_>";	2691	warn "... unloading $pkg";
2038	unload_extension $_;	2692
		2693	if (my $cb = $pkg->can ("unload")) {
		2694	eval {
		2695	$cb->($pkg);
		2696	1
		2697	} or warn "$pkg unloaded, but with errors: $@";
2039	}	2698	}
2040		2699
		2700	warn "... nuking $pkg";
		2701	Symbol::delete_package $pkg;
		2702	}
		2703
2041	# unload all modules loaded from $LIBDIR	2704	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	2705	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2706	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		2707
2045	warn "removing <$k>";	2708	warn "... unloading $k";
2046	delete $INC{$k};	2709	delete $INC{$k};
2047		2710
2048	$k =~ s/\.pm$//;	2711	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	2712	$k =~ s/\//::/g;
2050		2713
…		…
2053	}	2716	}
2054		2717
2055	Symbol::delete_package $k;	2718	Symbol::delete_package $k;
2056	}	2719	}
2057		2720
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	2721	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	2722	Symbol::delete_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2723	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		2724
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	2725	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	2726	delete $INC{"cf.pm"};
		2727	delete $INC{"cf/pod.pm"};
2071		2728
2072	# don't, removes xs symbols, too,	2729	# don't, removes xs symbols, too,
2073	# and global variables created in xs	2730	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	2731	#Symbol::delete_package __PACKAGE__;
2075		2732
2076	# reload cf.pm	2733	warn "unload completed, starting to reload now";
		2734
2077	warn "reloading cf.pm";	2735	warn "reloading cf.pm";
2078	require cf;	2736	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2737	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		2738
2081	# load config and database again	2739	warn "loading config and database again";
2082	cf::cfg_load;	2740	cf::cfg_load;
2083	cf::db_load;
2084		2741
2085	# load extensions
2086	warn "load extensions";	2742	warn "loading extensions";
2087	cf::load_extensions;	2743	cf::load_extensions;
2088		2744
2089	# reattach attachments to objects	2745	warn "reattaching attachments to objects/players";
2090	warn "reattach";	2746	_global_reattach; # objects, sockets
2091	_global_reattach;	2747	warn "reattaching attachments to maps";
2092	};	2748	reattach $_ for values %MAP;
		2749	warn "reattaching attachments to players";
		2750	reattach $_ for values %PLAYER;
2093		2751
2094	if ($@) {	2752	warn "leaving sync_job";
		2753
		2754	1
		2755	} or do {
2095	warn $@;	2756	warn $@;
2096	warn "error while reloading, exiting.";	2757	warn "error while reloading, exiting.";
2097	exit 1;	2758	exit 1;
2098	}	2759	};
2099		2760
2100	warn "reloaded successfully";	2761	warn "reloaded";
2101	};	2762	};
2102		2763
2103	#############################################################################	2764	our $RELOAD_WATCHER; # used only during reload
2104		2765
2105	unless ($LINK_MAP) {	2766	sub reload_perl() {
2106	$LINK_MAP = cf::map::new;	2767	# doing reload synchronously and two reloads happen back-to-back,
		2768	# coro crashes during coro_state_free->destroy here.
2107		2769
2108	$LINK_MAP->width (41);	2770	$RELOAD_WATCHER ||= Event->timer (
2109	$LINK_MAP->height (41);	2771	reentrant => 0,
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,	2772	after => 0,
		2773	data => WF_AUTOCANCEL,
2118	cb => sub {	2774	cb => sub {
2119	$_[0]->w->cancel;	2775	do_reload_perl;
2120		2776	undef $RELOAD_WATCHER;
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});	2777	},
2139		2778	);
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	2779	}
2145
2146	register "<global>", __PACKAGE__;
2147		2780
2148	register_command "reload" => sub {	2781	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	2782	my ($who, $arg) = @_;
2150		2783
2151	if ($who->flag (FLAG_WIZ)) {	2784	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	2785	$who->message ("reloading server.");
		2786	async { reload_perl };
2155	}	2787	}
2156	};	2788	};
2157		2789
2158	unshift @INC, $LIBDIR;	2790	unshift @INC, $LIBDIR;
		2791
		2792	my $bug_warning = 0;
		2793
		2794	our @WAIT_FOR_TICK;
		2795	our @WAIT_FOR_TICK_BEGIN;
		2796
		2797	sub wait_for_tick {
		2798	return unless $TICK_WATCHER->is_active;
		2799	return if $Coro::current == $Coro::main;
		2800
		2801	my $signal = new Coro::Signal;
		2802	push @WAIT_FOR_TICK, $signal;
		2803	$signal->wait;
		2804	}
		2805
		2806	sub wait_for_tick_begin {
		2807	return unless $TICK_WATCHER->is_active;
		2808	return if $Coro::current == $Coro::main;
		2809
		2810	my $signal = new Coro::Signal;
		2811	push @WAIT_FOR_TICK_BEGIN, $signal;
		2812	$signal->wait;
		2813	}
2159		2814
2160	$TICK_WATCHER = Event->timer (	2815	$TICK_WATCHER = Event->timer (
2161	reentrant => 0,	2816	reentrant => 0,
		2817	parked => 1,
2162	prio => 0,	2818	prio => 0,
2163	at => $NEXT_TICK || $TICK,	2819	at => $NEXT_TICK || $TICK,
2164	data => WF_AUTOCANCEL,	2820	data => WF_AUTOCANCEL,
2165	cb => sub {	2821	cb => sub {
2166	unless ($FREEZE) {	2822	if ($Coro::current != $Coro::main) {
		2823	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2824	unless ++$bug_warning > 10;
		2825	return;
		2826	}
		2827
		2828	$NOW = Event::time;
		2829
2167	cf::server_tick; # one server iteration	2830	cf::server_tick; # one server iteration
		2831
2168	$RUNTIME += $TICK;	2832	$RUNTIME += $TICK;
2169	}
2170
2171	$NEXT_TICK += $TICK;	2833	$NEXT_TICK += $TICK;
		2834
		2835	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2836	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2837	Coro::async_pool {
		2838	write_runtime
		2839	or warn "ERROR: unable to write runtime file: $!";
		2840	};
		2841	}
		2842
		2843	# my $AFTER = Event::time;
		2844	# warn $AFTER - $NOW;#d#
2172		2845
2173	# if we are delayed by four ticks or more, skip them all	2846	# if we are delayed by four ticks or more, skip them all
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2847	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2175		2848
2176	$TICK_WATCHER->at ($NEXT_TICK);	2849	$TICK_WATCHER->at ($NEXT_TICK);
2177	$TICK_WATCHER->start;	2850	$TICK_WATCHER->start;
		2851
		2852	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2853	$sig->send;
		2854	}
		2855	while (my $sig = shift @WAIT_FOR_TICK) {
		2856	$sig->send;
		2857	}
		2858
		2859	_post_tick;
2178	},	2860	},
2179	);	2861	);
2180		2862
		2863	{
2181	IO::AIO::max_poll_time $TICK * 0.2;	2864	BDB::max_poll_time $TICK * 0.1;
2182		2865	$BDB_POLL_WATCHER = Event->io (
2183	Event->io (	2866	reentrant => 0,
2184	fd => IO::AIO::poll_fileno,	2867	fd => BDB::poll_fileno,
2185	poll => 'r',	2868	poll => 'r',
2186	prio => 5,	2869	prio => 0,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,	2870	data => WF_AUTOCANCEL,
2193	after => 0,	2871	cb => \&BDB::poll_cb,
2194	interval => 10,	2872	);
2195	cb => sub {	2873	BDB::min_parallel 8;
2196	(Coro::unblock_sub {	2874
2197	write_runtime	2875	BDB::set_sync_prepare {
2198	or warn "ERROR: unable to write runtime file: $!";	2876	my $status;
		2877	my $current = $Coro::current;
		2878	(
		2879	sub {
		2880	$status = $!;
		2881	$current->ready; undef $current;
		2882	},
		2883	sub {
		2884	Coro::schedule while defined $current;
		2885	$! = $status;
		2886	},
		2887	)
		2888	};
		2889
		2890	unless ($DB_ENV) {
		2891	$DB_ENV = BDB::db_env_create;
		2892
		2893	cf::sync_job {
		2894	eval {
		2895	BDB::db_env_open
		2896	$DB_ENV,
		2897	$BDBDIR,
		2898	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2899	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2900	0666;
		2901
		2902	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2903
		2904	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2905	$DB_ENV->set_lk_detect;
		2906	};
		2907
		2908	cf::cleanup "db_env_open(db): $@" if $@;
2199	})->();	2909	};
2200	},	2910	}
2201	);	2911	}
		2912
		2913	{
		2914	IO::AIO::min_parallel 8;
		2915
		2916	undef $Coro::AIO::WATCHER;
		2917	IO::AIO::max_poll_time $TICK * 0.1;
		2918	$AIO_POLL_WATCHER = Event->io (
		2919	reentrant => 0,
		2920	data => WF_AUTOCANCEL,
		2921	fd => IO::AIO::poll_fileno,
		2922	poll => 'r',
		2923	prio => 6,
		2924	cb => \&IO::AIO::poll_cb,
		2925	);
		2926	}
		2927
		2928	sub _log_backtrace {
		2929	my ($msg, @addr) = @_;
		2930
		2931	async {
		2932	my @bt = fork_call {
		2933	@addr = map { sprintf "%x", $_ } @addr;
		2934	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2935	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2936	or die "addr2line: $!";
		2937
		2938	my @funcs;
		2939	my @res = <$fh>;
		2940	chomp for @res;
		2941	while (@res) {
		2942	my ($func, $line) = splice @res, 0, 2, ();
		2943	push @funcs, "[$func] $line";
		2944	}
		2945
		2946	@funcs
		2947	};
		2948
		2949	$msg =~ s/\n//;
		2950
		2951	LOG llevInfo, "[ABT] $msg\n";
		2952	LOG llevInfo, "[ABT] $_\n" for @bt;
		2953	};
		2954	}
		2955
		2956	# load additional modules
		2957	use cf::pod;
2202		2958
2203	END { cf::emergency_save }	2959	END { cf::emergency_save }
2204		2960
2205	1	2961	1
2206		2962

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