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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.257 by root, Sat Apr 21 17:34:24 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	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
249		305
250	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
251		307
252	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
253	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
…		…
267	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
269		325
270	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	327	# (but this is cancel-safe)
272	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
273		329
274	my $busy = 1;	330	my $busy = 1;
275	my @res;	331	my @res;
276		332
277	(Coro::async {	333	(async {
278	@res = eval { $job->() };	334	@res = eval { $job->() };
279	warn $@ if $@;	335	warn $@ if $@;
280	undef $busy;	336	undef $busy;
281	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
282		338
283	while ($busy) {	339	while ($busy) {
284	Coro::cede_notself;	340	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	341	}
287		342
288	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
289	} else {	344	} else {
290	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
291		346
292	$job->()	347	$job->()
293	}	348	}
294	}	349	}
295		350
296	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
297		352
298	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
300		355
301	=cut	356	=cut
302		357
303	sub coro(&) {	358	sub async_ext(&) {
304	my $cb = shift;	359	my $cb = shift;
305		360
306	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		362
313	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
315	});	365	});
316	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
317		367
318	$coro	368	$coro
319	}	369	}
320		370
321	sub write_runtime {	371	sub write_runtime {
322	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
323		375
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	377	or return;
326		378
		379	my $value = $cf::RUNTIME + 90 + 10;
327	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
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	384	and return;
330		385
		386	# always fsync - this file is important
331	aio_fsync $fh	387	aio_fsync $fh
332	and return;	388	and return;
333		389
334	close $fh	390	close $fh
335	or return;	391	or return;
…		…
338	and return;	394	and return;
339		395
340	1	396	1
341	}	397	}
342		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
343	=back	410	=back
344		411
345	=cut	412	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		413
467	#############################################################################	414	#############################################################################
468		415
469	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
470		417
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	544	our @CB_MAP = ();
598		545
599	my %attachment;	546	my %attachment;
600		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
601	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
603		556
604	use sort 'stable';	557	use sort 'stable';
605		558
…		…
776	# object support	729	# object support
777		730
778	sub reattach {	731	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		736
782	my $registry = $obj->registry;	737	my $registry = $obj->registry;
783		738
784	@$registry = ();	739	@$registry = ();
785		740
…		…
832	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
833		788
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	793	close $fh;
839		794
840	if (@$objs) {	795	if (@$objs) {
841	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) {
842	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	801	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
848	}	803	}
849	} else {	804	} else {
850	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
917	=cut	872	=cut
918		873
919	sub register_extcmd {	874	sub register_extcmd {
920	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
921		876
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
926	}	878	}
927		879
928	cf::player->attach (	880	cf::player->attach (
929	on_command => sub {	881	on_command => sub {
930	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
943		895
944	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
945		897
946	if (ref $msg) {	898	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	902	}
951	}	903	}
952	} else {	904	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		907
956	cf::override;	908	cf::override;
957	},	909	},
958	);	910	);
959		911
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	912	sub load_extension {
967	my ($path) = @_;	913	my ($path) = @_;
968		914
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	916	my $base = $1;
971	my $pkg = $1;	917	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
974		920
975	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
976		922
977	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
978	or die "$path: $!";	924	or die "$path: $!";
979		925
980	my $source =	926	my $source =
981	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
984	. "\n};\n1";	930	. "\n};\n1";
985		931
986	eval $source	932	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	934	: "extension disabled.\n";
989		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	936	warn $@;
991	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
992		938	exit 1;
993	# no strict 'refs';	939	}
994	# @{"$pkg\::ISA"} = ext::;	940	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	941	}
1009		942
1010	# remove commands	943	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	944	}
1035		945
1036	sub load_extensions {	946	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	948	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1043	}	953	}
1044	}	954	}
1045		955
1046	#############################################################################	956	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		957
1084	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1085		959
1086	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1087		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1088	=head3 cf::player	968	=head3 cf::player
1089		969
1090	=over 4	970	=over 4
1091		971
1092	=item cf::player::exists $login	972	=item cf::player::find $login
1093		973
1094	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1095		975
1096	=cut	976	=cut
1097		977
1098	sub cf::player::exists($) {	978	sub playerdir($) {
1099	cf::player::find $_[0]	979	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	981	}
1102		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
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1104		1155
1105	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1106		1157
1107	=cut	1158	=cut
1108		1159
1109	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1111		1162
1112	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1113		1164
1114	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		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
1115	}	1207	}
1116		1208
1117	=back	1209	=back
1118
1119		1210
1120	=head3 cf::map	1211	=head3 cf::map
1121		1212
1122	=over 4	1213	=over 4
1123		1214
…		…
1126	package cf::map;	1217	package cf::map;
1127		1218
1128	use Fcntl;	1219	use Fcntl;
1129	use Coro::AIO;	1220	use Coro::AIO;
1130		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1131	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1133		1228
1134	sub generate_random_map {	1229	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1232	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$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},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(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"
1151	}	1374	}
1152		1375
1153	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1154	# all maps in C++...	1377	# all maps in C++...
1155	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1157		1380
1158	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1160	}	1383	}
1161		1384
		1385	sub unlink_save {
		1386	my ($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
1162	sub try_load_header($) {	1393	sub load_header_from($) {
1163	my ($path) = @_;	1394	my ($self, $path) = @_;
1164		1395
1165	utf8::encode $path;	1396	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1167	or return;	1401	or return;
1168		1402
1169	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
1170	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1171		1449
1172	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1173	or return;	1451	unless $self->default_region;
1174		1452
1175	$map->{load_path} = $path;	1453	1
1176
1177	$map
1178	}	1454	}
1179		1455
1180	sub find_map;	1456	sub find;
1181	sub find_map {	1457	sub find {
1182	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1183		1459
1184	#warn "find_map<$path,$origin>\n";#d#
1185
1186	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		1461
1189	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1190		1463
1191	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1193		1466	my $map = new_from_path cf::map $path
1194	# do it the slow way
1195	my $map = try_load_header $path->save_path;
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	1467	or return;
1209		1468
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		1470
1223	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;
1224	$map->reset;	1477	$map->reset;
1225	undef $guard;	1478	undef $guard;
1226	$map = find_map $path	1479	return find $path;
1227	or return;
1228	}	1480	}
1229		1481
1230	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1231	}	1483	}
1232	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1233		1488
1234	sub load {	1489	sub load {
1235	my ($self) = @_;	1490	my ($self) = @_;
1236		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1237	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1239		1498
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1500
1242	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1243		1502
1244	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1245	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1509	or return;
1247		1510
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1512	if delete $self->{load_original};
1250		1513
1251	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1515	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1517	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1256	}	1519	}
1257	}	1520	}
1258		1521
		1522	Coro::cede;
1259	# now do the right thing for maps	1523	# now do the right thing for maps
1260	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1271	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;
1272	$self->activate;	1536	$self->activate;
1273	}	1537	}
1274		1538
1275	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1276	}	1540	}
1277		1541
1278	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	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1279	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1280		1580
1281	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1282		1583
1283	cf::sync_job {	1584	sub do_load_sync {
1284	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1285	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;
1286	$map->load;	1608	$map->load;
1287	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1288	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1289	}	1618	}
1290		1619
1291	sub save {	1620	sub save {
1292	my ($self) = @_;	1621	my ($self) = @_;
1293		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1294	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1295		1626
1296	return unless $self->dirty;	1627	return unless $self->dirty;
1297		1628
1298	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1300		1631
1301	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1302		1633
1303	return if $self->{deny_save};	1634	return if $self->{deny_save};
1304		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1305	if ($uniq) {	1642	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1645	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1647	}
1311	}	1648	}
1312		1649
1313	sub swap_out {	1650	sub swap_out {
1314	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;
1315		1657
1316	return if $self->players;	1658	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	1660	return if $self->{deny_save};
1319		1661
1320	$self->save;
1321	$self->clear;	1662	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);	1663	$self->in_memory (cf::MAP_SWAPPED);
1323	}	1664	}
1324		1665
1325	sub reset_at {	1666	sub reset_at {
1326	my ($self) = @_;	1667	my ($self) = @_;
1327		1668
1328	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1330	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1331		1672
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		1675
…		…
1339	my ($self) = @_;	1680	my ($self) = @_;
1340		1681
1341	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1342	}	1683	}
1343		1684
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	1685	sub reset {
1366	my ($self) = @_;	1686	my ($self) = @_;
1367		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1368	return if $self->players;	1690	return if $self->players;
1369	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1370		1692
1371	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1372		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
1373	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1374		1708
1375	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1376		1710
1377	$self->unlink_save;	1711	$self->unlink_save;
1378	$self->destroy;	1712	$self->destroy;
…		…
1381	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1382		1716
1383	sub nuke {	1717	sub nuke {
1384	my ($self) = @_;	1718	my ($self) = @_;
1385		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1386	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1389	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1390	}	1733	}
1391		1734
1392	sub customise_for {	1735	=item cf::map::unique_maps
1393	my ($map, $ob) = @_;
1394		1736
1395	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1397	}
1398		1739
1399	$map	1740	=cut
1400	}
1401		1741
1402	sub emergency_save {	1742	sub unique_maps() {
1403	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1404		1745
1405	warn "enter emergency map save\n";	1746	my @paths;
1406		1747
1407	cf::sync_job {	1748	for (@$files) {
1408	warn "begin emergency map save\n";	1749	utf8::decode $_;
1409	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1410	};	1754	}
1411		1755
1412	warn "end emergency map save\n";	1756	\@paths
1413	}	1757	}
1414		1758
1415	package cf;	1759	package cf;
1416		1760
1417	=back	1761	=back
1418		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
1419		1789
1420	=head3 cf::object::player	1790	=head3 cf::object::player
1421		1791
1422	=over 4	1792	=over 4
1423		1793
…		…
1463		1833
1464	=item $player_object->enter_link	1834	=item $player_object->enter_link
1465		1835
1466	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}>).
1467		1837
1468	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
1469	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1470		1840
		1841	Will never block.
		1842
1471	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1472		1844
1473	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	1848	fails, to the emergency map position.
1477		1849
1478	Might block.	1850	Might block.
1479		1851
1480	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($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	$LINK_MAP
		1862	}
1481		1863
1482	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1483	my ($self) = @_;	1865	my ($self) = @_;
1484		1866
1485	$self->deactivate_recursive;	1867	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486
1487	return if $self->map == $LINK_MAP;
1488		1868
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	1870	if $self->map;
1491		1871
1492	$self->enter_map ($LINK_MAP, 20, 20);	1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1493	}	1873	}
1494		1874
1495	sub cf::object::player::leave_link {	1875	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	1876	my ($self, $map, $x, $y) = @_;
1497		1877
1498	my $link_pos = delete $self->{_link_pos};	1878	my $link_pos = delete $self->{_link_pos};
1499		1879
1500	unless ($map) {	1880	unless ($map) {
1501	# restore original map position	1881	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	1882	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	1883	$map = cf::map::find $map;
1504		1884
1505	unless ($map) {	1885	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	1886	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	1887	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	1888	or die "FATAL: cannot load emergency map\n";
1509	}	1889	}
1510	}	1890	}
1511		1891
1512	($x, $y) = (-1, -1)	1892	($x, $y) = (-1, -1)
…		…
1515	# use -1 or undef as default coordinates, not 0, 0	1895	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	1896	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	1897	if $x <=0 && $y <= 0;
1518		1898
1519	$map->load;	1899	$map->load;
		1900	$map->load_diag;
1520		1901
		1902	return unless $self->contr->active;
1521	$self->activate_recursive;	1903	$self->activate_recursive;
		1904
		1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1522	$self->enter_map ($map, $x, $y);	1906	$self->enter_map ($map, $x, $y);
1523	}	1907	}
1524		1908
1525	cf::player->attach (	1909	cf::player->attach (
1526	on_logout => sub {	1910	on_logout => sub {
…		…
1538		1922
1539	# try to abort aborted map switching on player login :)	1923	# try to abort aborted map switching on player login :)
1540	# should happen only on crashes	1924	# should happen only on crashes
1541	if ($pl->ob->{_link_pos}) {	1925	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;	1926	$pl->ob->enter_link;
1543	Coro::async {	1927	(async {
		1928	$pl->ob->reply (undef,
		1929	"There was an internal problem at your last logout, "
		1930	. "the server will try to bring you to your intended destination in a second.",
		1931	cf::NDI_RED);
1544	# we need this sleep as the login has a concurrent enter_exit running	1932	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn	1933	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;	1934	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;	1935	$pl->ob->leave_link;
1548	};	1936	})->prio (2);
1549	}	1937	}
1550	},	1938	},
1551	);	1939	);
1552		1940
1553	=item $player_object->goto_map ($path, $x, $y)	1941	=item $player_object->goto ($path, $x, $y)
1554		1942
1555	=cut	1943	=cut
1556		1944
1557	sub cf::object::player::goto_map {	1945	sub cf::object::player::goto {
1558	my ($self, $path, $x, $y) = @_;	1946	my ($self, $path, $x, $y) = @_;
1559		1947
1560	$self->enter_link;	1948	$self->enter_link;
1561		1949
1562	(Coro::async {	1950	(async {
1563	$path = new cf::path $path;	1951	my $map = eval {
1564
1565	my $map = cf::map::find_map $path->as_string;	1952	my $map = cf::map::find $path;
1566	$map = $map->customise_for ($self) if $map;	1953	$map = $map->customise_for ($self) if $map;
1567		1954	$map
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	1955	} or
1569	# if $map;
1570
1571	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1572		1957
1573	$self->leave_link ($map, $x, $y);	1958	$self->leave_link ($map, $x, $y);
1574	})->prio (1);	1959	})->prio (1);
1575	}	1960	}
1576		1961
…		…
1580		1965
1581	sub parse_random_map_params {	1966	sub parse_random_map_params {
1582	my ($spec) = @_;	1967	my ($spec) = @_;
1583		1968
1584	my $rmp = { # defaults	1969	my $rmp = { # defaults
1585	xsize => 10,	1970	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	1971	ysize => (cf::rndm 15, 40),
		1972	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1973	#layout => string,
1587	};	1974	};
1588		1975
1589	for (split /\n/, $spec) {	1976	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	1977	my ($k, $v) = split /\s+/, $_, 2;
1591		1978
…		…
1595	$rmp	1982	$rmp
1596	}	1983	}
1597		1984
1598	sub prepare_random_map {	1985	sub prepare_random_map {
1599	my ($exit) = @_;	1986	my ($exit) = @_;
		1987
		1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1600		1989
1601	# all this does is basically replace the /! path by	1990	# all this does is basically replace the /! path by
1602	# a new random map path (?random/...) with a seed	1991	# a new random map path (?random/...) with a seed
1603	# that depends on the exit object	1992	# that depends on the exit object
1604		1993
1605	my $rmp = parse_random_map_params $exit->msg;	1994	my $rmp = parse_random_map_params $exit->msg;
1606		1995
1607	if ($exit->map) {	1996	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	1997	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	1998	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	1999	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2000	$rmp->{origin_y} = $exit->y;
1612	}	2001	}
1613		2002
1614	$rmp->{random_seed} ||= $exit->random_seed;	2003	$rmp->{random_seed} ||= $exit->random_seed;
1615		2004
1616	my $data = cf::to_json $rmp;	2005	my $data = cf::to_json $rmp;
1617	my $md5 = Digest::MD5::md5_hex $data;	2006	my $md5 = Digest::MD5::md5_hex $data;
		2007	my $meta = "$RANDOMDIR/$md5.meta";
1618		2008
1619	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1620	aio_write $fh, 0, (length $data), $data, 0;	2010	aio_write $fh, 0, (length $data), $data, 0;
		2011	undef $fh;
		2012	aio_rename "$meta~", $meta;
1621		2013
1622	$exit->slaying ("?random/$md5");	2014	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2015	$exit->msg (undef);
1624	}	2016	}
1625	}	2017	}
…		…
1627	sub cf::object::player::enter_exit {	2019	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2020	my ($self, $exit) = @_;
1629		2021
1630	return unless $self->type == cf::PLAYER;	2022	return unless $self->type == cf::PLAYER;
1631		2023
		2024	if ($exit->slaying eq "/!") {
		2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2026	# the problem is that $exit might not survive long enough
		2027	# so it needs to be done right now, right here
		2028	cf::sync_job { prepare_random_map $exit };
		2029	}
		2030
		2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2032	my $hp = $exit->stats->hp;
		2033	my $sp = $exit->stats->sp;
		2034
1632	$self->enter_link;	2035	$self->enter_link;
1633		2036
1634	(Coro::async {	2037	(async {
		2038	$self->deactivate_recursive; # just to be sure
1635	unless (eval {	2039	unless (eval {
1636		2040	$self->goto ($slaying, $hp, $sp);
1637	prepare_random_map $exit
1638	if $exit->slaying eq "/!";
1639
1640	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1642		2041
1643	1;	2042	1;
1644	}) {	2043	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2044	$self->message ("Something went wrong deep within the crossfire server. "
1646	. "I'll try to bring you back to the map you were before. "	2045	. "I'll try to bring you back to the map you were before. "
1647	. "Please report this to the dungeon master",	2046	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2047	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2048
1650	warn "ERROR in enter_exit: $@";	2049	warn "ERROR in enter_exit: $@";
1651	$self->leave_link;	2050	$self->leave_link;
1652	}	2051	}
1653	})->prio (1);	2052	})->prio (1);
…		…
1666		2065
1667	sub cf::client::send_drawinfo {	2066	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2067	my ($self, $text, $flags) = @_;
1669		2068
1670	utf8::encode $text;	2069	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2071	}
1673		2072
		2073	=item $client->ext_event ($type, %msg)
		2074
		2075	Sends an exti event to the client.
		2076
		2077	=cut
		2078
		2079	sub cf::client::ext_event($$%) {
		2080	my ($self, $type, %msg) = @_;
		2081
		2082	$msg{msgtype} = "event_$type";
		2083	$self->send_packet ("ext " . cf::to_json \%msg);
		2084	}
1674		2085
1675	=item $success = $client->query ($flags, "text", \&cb)	2086	=item $success = $client->query ($flags, "text", \&cb)
1676		2087
1677	Queues a query to the client, calling the given callback with	2088	Queues a query to the client, calling the given callback with
1678	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1703	on_reply => sub {	2114	on_reply => sub {
1704	my ($ns, $msg) = @_;	2115	my ($ns, $msg) = @_;
1705		2116
1706	# this weird shuffling is so that direct followup queries	2117	# this weird shuffling is so that direct followup queries
1707	# get handled first	2118	# get handled first
1708	my $queue = delete $ns->{query_queue};	2119	my $queue = delete $ns->{query_queue}
		2120	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		2121
1710	(shift @$queue)->[1]->($msg);	2122	(shift @$queue)->[1]->($msg);
		2123	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		2124
1712	push @{ $ns->{query_queue} }, @$queue;	2125	push @{ $ns->{query_queue} }, @$queue;
1713		2126
1714	if (@{ $ns->{query_queue} } == @$queue) {	2127	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	2128	if (@$queue) {
…		…
1719	}	2132	}
1720	}	2133	}
1721	},	2134	},
1722	);	2135	);
1723		2136
1724	=item $client->coro (\&cb)	2137	=item $client->async (\&cb)
1725		2138
1726	Create a new coroutine, running the specified callback. The coroutine will	2139	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	2140	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	2141	or loss of connection).
1729		2142
1730	=cut	2143	=cut
1731		2144
1732	sub cf::client::coro {	2145	sub cf::client::async {
1733	my ($self, $cb) = @_;	2146	my ($self, $cb) = @_;
1734		2147
1735	my $coro; $coro = async {	2148	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		2149
1742	$coro->on_destroy (sub {	2150	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	2151	delete $self->{_coro}{$coro+0};
1744	});	2152	});
1745		2153
…		…
1778		2186
1779	# here we export the classes and methods available to script code	2187	# here we export the classes and methods available to script code
1780		2188
1781	=pod	2189	=pod
1782		2190
1783	The following fucntions and emthods are available within a safe environment:	2191	The following functions and methods are available within a safe environment:
1784		2192
1785	cf::object contr pay_amount pay_player map	2193	cf::object contr pay_amount pay_player map
1786	cf::object::player player	2194	cf::object::player player
1787	cf::player peaceful	2195	cf::player peaceful
1788	cf::map trigger	2196	cf::map trigger
…		…
1873	#############################################################################	2281	#############################################################################
1874		2282
1875	=head2 EXTENSION DATABASE SUPPORT	2283	=head2 EXTENSION DATABASE SUPPORT
1876		2284
1877	Crossfire maintains a very simple database for extension use. It can	2285	Crossfire maintains a very simple database for extension use. It can
1878	currently store anything that can be serialised using Storable, which	2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1879	excludes objects.	2287	convert to/from binary).
1880		2288
1881	The parameter C<$family> should best start with the name of the extension	2289	The parameter C<$family> should best start with the name of the extension
1882	using it, it should be unique.	2290	using it, it should be unique.
1883		2291
1884	=over 4	2292	=over 4
1885		2293
1886	=item $hashref = cf::db_get $family
1887
1888	Return a hashref for use by the extension C<$family>, which can be
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891
1892	=item $value = cf::db_get $family => $key	2294	=item $value = cf::db_get $family => $key
1893		2295
1894	Returns a single value from the database	2296	Returns a single value from the database.
1895
1896	=item cf::db_put $family => $hashref
1897
1898	Stores the given family hashref into the database. Updates are delayed, if
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1900		2297
1901	=item cf::db_put $family => $key => $value	2298	=item cf::db_put $family => $key => $value
1902		2299
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you	2300	Stores the given C<$value> in the family.
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913		2301
1914	=cut	2302	=cut
1915		2303
1916	our $DB;	2304	our $DB;
1917		2305
1918	{	2306	sub db_init {
1919	my $path = cf::localdir . "/database.pst";	2307	unless ($DB) {
		2308	$DB = BDB::db_create $DB_ENV;
1920		2309
1921	sub db_load() {	2310	cf::sync_job {
1922	$DB = stat $path ? Storable::retrieve $path : { };	2311	eval {
1923	}	2312	$DB->set_flags (BDB::CHKSUM);
1924		2313
1925	my $pid;	2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1926		2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1927	sub db_save() {	2316	cf::cleanup "db_open(db): $!" if $!;
1928	waitpid $pid, 0 if $pid;	2317	};
1929	if (0 == ($pid = fork)) {	2318	cf::cleanup "db_open(db): $@" if $@;
1930	$DB->{_meta}{version} = 1;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}	2319	};
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});	2320	}
		2321	}
1947		2322
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}
1952
1953	sub db_get($;$) {	2323	sub db_get($$) {
1954	@_ >= 2	2324	my $key = "$_[0]/$_[1]";
1955	? $DB->{$_[0]}{$_[1]}
1956	: ($DB->{$_[0]} ||= { })
1957	}
1958		2325
		2326	cf::sync_job {
		2327	BDB::db_get $DB, undef, $key, my $data;
		2328
		2329	$! ? ()
		2330	: $data
		2331	}
		2332	}
		2333
1959	sub db_put($$;$) {	2334	sub db_put($$$) {
1960	if (@_ >= 3) {	2335	BDB::dbreq_pri 4;
1961	$DB->{$_[0]}{$_[1]} = $_[2];	2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1962	} else {	2337	}
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967		2338
1968	cf::global->attach (	2339	=item cf::cache $id => [$paths...], $processversion => $process
1969	prio => 10000,	2340
1970	on_cleanup => sub {	2341	Generic caching function that returns the value of the resource $id,
1971	db_sync;	2342	caching and regenerating as required.
		2343
		2344	This function can block.
		2345
		2346	=cut
		2347
		2348	sub cache {
		2349	my ($id, $src, $processversion, $process) = @_;
		2350
		2351	my $meta =
		2352	join "\x00",
		2353	$processversion,
		2354	map {
		2355	aio_stat $_
		2356	and Carp::croak "$_: $!";
		2357
		2358	($_, (stat _)[7,9])
		2359	} @$src;
		2360
		2361	my $dbmeta = db_get cache => "$id/meta";
		2362	if ($dbmeta ne $meta) {
		2363	# changed, we may need to process
		2364
		2365	my @data;
		2366	my $md5;
		2367
		2368	for (0 .. $#$src) {
		2369	0 <= aio_load $src->[$_], $data[$_]
		2370	or Carp::croak "$src->[$_]: $!";
1972	},	2371	}
1973	);	2372
		2373	# if processing is expensive, check
		2374	# checksum first
		2375	if (1) {
		2376	$md5 =
		2377	join "\x00",
		2378	$processversion,
		2379	map {
		2380	Coro::cede;
		2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2382	} 0.. $#$src;
		2383
		2384
		2385	my $dbmd5 = db_get cache => "$id/md5";
		2386	if ($dbmd5 eq $md5) {
		2387	db_put cache => "$id/meta", $meta;
		2388
		2389	return db_get cache => "$id/data";
		2390	}
		2391	}
		2392
		2393	my $t1 = Time::HiRes::time;
		2394	my $data = $process->(\@data);
		2395	my $t2 = Time::HiRes::time;
		2396
		2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2398
		2399	db_put cache => "$id/data", $data;
		2400	db_put cache => "$id/md5" , $md5;
		2401	db_put cache => "$id/meta", $meta;
		2402
		2403	return $data;
		2404	}
		2405
		2406	db_get cache => "$id/data"
1974	}	2407	}
		2408
		2409	=item fork_call { }, $args
		2410
		2411	Executes the given code block with the given arguments in a seperate
		2412	process, returning the results. Everything must be serialisable with
		2413	Coro::Storable. May, of course, block. Note that the executed sub may
		2414	never block itself or use any form of Event handling.
		2415
		2416	=cut
		2417
		2418	sub fork_call(&@) {
		2419	my ($cb, @args) = @_;
		2420
		2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2422	# or die "socketpair: $!";
		2423	pipe my $fh1, my $fh2
		2424	or die "pipe: $!";
		2425
		2426	if (my $pid = fork) {
		2427	close $fh2;
		2428
		2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2430	$res = Coro::Storable::thaw $res;
		2431
		2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2433
		2434	die $$res unless "ARRAY" eq ref $res;
		2435
		2436	return wantarray ? @$res : $res->[-1];
		2437	} else {
		2438	local $SIG{__WARN__};
		2439	eval {
		2440	local $SIG{__DIE__};
		2441	close $fh1;
		2442
		2443	my @res = eval { $cb->(@args) };
		2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2445	};
		2446
		2447	warn $@ if $@;
		2448	_exit 0;
		2449	}
		2450	}
		2451
		2452
1975		2453
1976	#############################################################################	2454	#############################################################################
1977	# the server's main()	2455	# the server's init and main functions
		2456
		2457	sub load_facedata($) {
		2458	my ($path) = @_;
		2459
		2460	warn "loading facedata from $path\n";
		2461
		2462	my $facedata;
		2463	0 < aio_load $path, $facedata
		2464	or die "$path: $!";
		2465
		2466	$facedata = Coro::Storable::thaw $facedata;
		2467
		2468	$facedata->{version} == 2
		2469	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2470
		2471	{
		2472	my $faces = $facedata->{faceinfo};
		2473
		2474	while (my ($face, $info) = each %$faces) {
		2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2479	Coro::cede;
		2480	}
		2481
		2482	while (my ($face, $info) = each %$faces) {
		2483	next unless $info->{smooth};
		2484	my $idx = cf::face::find $face
		2485	or next;
		2486	if (my $smooth = cf::face::find $info->{smooth}) {
		2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2488	} else {
		2489	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2490	}
		2491	Coro::cede;
		2492	}
		2493	}
		2494
		2495	{
		2496	my $anims = $facedata->{animinfo};
		2497
		2498	while (my ($anim, $info) = each %$anims) {
		2499	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2500	Coro::cede;
		2501	}
		2502
		2503	cf::anim::invalidate_all; # d'oh
		2504	}
		2505
		2506	1
		2507	}
		2508
		2509	sub reload_regions {
		2510	load_resource_file "$MAPDIR/regions"
		2511	or die "unable to load regions file\n";
		2512	}
		2513
		2514	sub reload_facedata {
		2515	load_facedata "$DATADIR/facedata"
		2516	or die "unable to load facedata\n";
		2517	}
		2518
		2519	sub reload_archetypes {
		2520	load_resource_file "$DATADIR/archetypes"
		2521	or die "unable to load archetypes\n";
		2522	}
		2523
		2524	sub reload_treasures {
		2525	load_resource_file "$DATADIR/treasures"
		2526	or die "unable to load treasurelists\n";
		2527	}
		2528
		2529	sub reload_resources {
		2530	warn "reloading resource files...\n";
		2531
		2532	reload_regions;
		2533	reload_facedata;
		2534	reload_archetypes;
		2535	reload_treasures;
		2536
		2537	warn "finished reloading resource files\n";
		2538	}
		2539
		2540	sub init {
		2541	reload_resources;
		2542	}
1978		2543
1979	sub cfg_load {	2544	sub cfg_load {
1980	open my $fh, "<:utf8", cf::confdir . "/config"	2545	open my $fh, "<:utf8", "$CONFDIR/config"
1981	or return;	2546	or return;
1982		2547
1983	local $/;	2548	local $/;
1984	*CFG = YAML::Syck::Load <$fh>;	2549	*CFG = YAML::Syck::Load <$fh>;
		2550
		2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2552
		2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2555
		2556	if (exists $CFG{mlockall}) {
		2557	eval {
		2558	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2559	and die "WARNING: m(un)lockall failed: $!\n";
		2560	};
		2561	warn $@ if $@;
		2562	}
1985	}	2563	}
1986		2564
1987	sub main {	2565	sub main {
1988	# we must not ever block the main coroutine	2566	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	2567	local $Coro::idle = sub {
1990	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1991	(Coro::unblock_sub {	2569	(async {
1992	Event::one_event;	2570	Event::one_event;
1993	})->();	2571	})->prio (Coro::PRIO_MAX);
1994	};	2572	};
1995		2573
1996	cfg_load;	2574	cfg_load;
1997	db_load;	2575	db_init;
1998	load_extensions;	2576	load_extensions;
		2577
		2578	$TICK_WATCHER->start;
1999	Event::loop;	2579	Event::loop;
2000	}	2580	}
2001		2581
2002	#############################################################################	2582	#############################################################################
2003	# initialisation	2583	# initialisation and cleanup
2004		2584
		2585	# install some emergency cleanup handlers
		2586	BEGIN {
		2587	for my $signal (qw(INT HUP TERM)) {
		2588	Event->signal (
		2589	reentrant => 0,
		2590	data => WF_AUTOCANCEL,
		2591	signal => $signal,
		2592	prio => 0,
		2593	cb => sub {
		2594	cf::cleanup "SIG$signal";
		2595	},
		2596	);
		2597	}
		2598	}
		2599
		2600	sub emergency_save() {
		2601	my $freeze_guard = cf::freeze_mainloop;
		2602
		2603	warn "enter emergency perl save\n";
		2604
		2605	cf::sync_job {
		2606	# use a peculiar iteration method to avoid tripping on perl
		2607	# refcount bugs in for. also avoids problems with players
		2608	# and maps saved/destroyed asynchronously.
		2609	warn "begin emergency player save\n";
		2610	for my $login (keys %cf::PLAYER) {
		2611	my $pl = $cf::PLAYER{$login} or next;
		2612	$pl->valid or next;
		2613	$pl->save;
		2614	}
		2615	warn "end emergency player save\n";
		2616
		2617	warn "begin emergency map save\n";
		2618	for my $path (keys %cf::MAP) {
		2619	my $map = $cf::MAP{$path} or next;
		2620	$map->valid or next;
		2621	$map->save;
		2622	}
		2623	warn "end emergency map save\n";
		2624
		2625	warn "begin emergency database checkpoint\n";
		2626	BDB::db_env_txn_checkpoint $DB_ENV;
		2627	warn "end emergency database checkpoint\n";
		2628	};
		2629
		2630	warn "leave emergency perl save\n";
		2631	}
		2632
		2633	sub post_cleanup {
		2634	my ($make_core) = @_;
		2635
		2636	warn Carp::longmess "post_cleanup backtrace"
		2637	if $make_core;
		2638	}
		2639
2005	sub reload() {	2640	sub do_reload_perl() {
2006	# can/must only be called in main	2641	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	2642	if ($Coro::current != $Coro::main) {
2008	warn "can only reload from main coroutine\n";	2643	warn "can only reload from main coroutine";
2009	return;	2644	return;
2010	}	2645	}
2011		2646
2012	warn "reloading...";	2647	warn "reloading...";
2013		2648
2014	local $FREEZE = 1;	2649	warn "entering sync_job";
		2650
		2651	cf::sync_job {
		2652	cf::write_runtime; # external watchdog should not bark
2015	cf::emergency_save;	2653	cf::emergency_save;
		2654	cf::write_runtime; # external watchdog should not bark
2016		2655
2017	eval {	2656	warn "syncing database to disk";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658
2018	# if anything goes wrong in here, we should simply crash as we already saved	2659	# if anything goes wrong in here, we should simply crash as we already saved
2019		2660
2020	# cancel all watchers	2661	warn "cancelling all WF_AUTOCANCEL watchers";
2021	for (Event::all_watchers) {	2662	for (Event::all_watchers) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;	2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2023	}	2664	}
2024		2665
		2666	warn "flushing outstanding aio requests";
		2667	for (;;) {
		2668	BDB::flush;
		2669	IO::AIO::flush;
		2670	Coro::cede;
		2671	last unless IO::AIO::nreqs || BDB::nreqs;
		2672	warn "iterate...";
		2673	}
		2674
		2675	++$RELOAD;
		2676
2025	# cancel all extension coros	2677	warn "cancelling all extension coros";
2026	$_->cancel for values %EXT_CORO;	2678	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();	2679	%EXT_CORO = ();
2028		2680
2029	# unload all extensions	2681	warn "removing commands";
2030	for (@exts) {	2682	%COMMAND = ();
		2683
		2684	warn "removing ext commands";
		2685	%EXTCMD = ();
		2686
		2687	warn "unloading/nuking all extensions";
		2688	for my $pkg (@EXTS) {
2031	warn "unloading <$_>";	2689	warn "... unloading $pkg";
2032	unload_extension $_;	2690
		2691	if (my $cb = $pkg->can ("unload")) {
		2692	eval {
		2693	$cb->($pkg);
		2694	1
		2695	} or warn "$pkg unloaded, but with errors: $@";
2033	}	2696	}
2034		2697
		2698	warn "... nuking $pkg";
		2699	Symbol::delete_package $pkg;
		2700	}
		2701
2035	# unload all modules loaded from $LIBDIR	2702	warn "unloading all perl modules loaded from $LIBDIR";
2036	while (my ($k, $v) = each %INC) {	2703	while (my ($k, $v) = each %INC) {
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2038		2705
2039	warn "removing <$k>";	2706	warn "... unloading $k";
2040	delete $INC{$k};	2707	delete $INC{$k};
2041		2708
2042	$k =~ s/\.pm$//;	2709	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;	2710	$k =~ s/\//::/g;
2044		2711
…		…
2047	}	2714	}
2048		2715
2049	Symbol::delete_package $k;	2716	Symbol::delete_package $k;
2050	}	2717	}
2051		2718
2052	# sync database to disk
2053	cf::db_sync;
2054	IO::AIO::flush;
2055
2056	# get rid of safe::, as good as possible	2719	warn "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	2720	Symbol::delete_package "safe::$_"
2058	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059		2722
2060	# remove register_script_function callbacks
2061	# TODO
2062
2063	# unload cf.pm "a bit"	2723	warn "unloading cf.pm \"a bit\"";
2064	delete $INC{"cf.pm"};	2724	delete $INC{"cf.pm"};
		2725	delete $INC{"cf/pod.pm"};
2065		2726
2066	# don't, removes xs symbols, too,	2727	# don't, removes xs symbols, too,
2067	# and global variables created in xs	2728	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	2729	#Symbol::delete_package __PACKAGE__;
2069		2730
2070	# reload cf.pm	2731	warn "unload completed, starting to reload now";
		2732
2071	warn "reloading cf.pm";	2733	warn "reloading cf.pm";
2072	require cf;	2734	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2074		2736
2075	# load config and database again	2737	warn "loading config and database again";
2076	cf::cfg_load;	2738	cf::cfg_load;
2077	cf::db_load;
2078		2739
2079	# load extensions
2080	warn "load extensions";	2740	warn "loading extensions";
2081	cf::load_extensions;	2741	cf::load_extensions;
2082		2742
2083	# reattach attachments to objects	2743	warn "reattaching attachments to objects/players";
2084	warn "reattach";	2744	_global_reattach; # objects, sockets
2085	_global_reattach;	2745	warn "reattaching attachments to maps";
2086	};	2746	reattach $_ for values %MAP;
		2747	warn "reattaching attachments to players";
		2748	reattach $_ for values %PLAYER;
2087		2749
2088	if ($@) {	2750	warn "leaving sync_job";
		2751
		2752	1
		2753	} or do {
2089	warn $@;	2754	warn $@;
2090	warn "error while reloading, exiting.";	2755	warn "error while reloading, exiting.";
2091	exit 1;	2756	exit 1;
2092	}	2757	};
2093		2758
2094	warn "reloaded successfully";	2759	warn "reloaded";
2095	};	2760	};
2096		2761
2097	#############################################################################	2762	our $RELOAD_WATCHER; # used only during reload
2098		2763
2099	unless ($LINK_MAP) {	2764	sub reload_perl() {
2100	$LINK_MAP = cf::map::new;	2765	# doing reload synchronously and two reloads happen back-to-back,
		2766	# coro crashes during coro_state_free->destroy here.
2101		2767
2102	$LINK_MAP->width (41);	2768	$RELOAD_WATCHER ||= Event->timer (
2103	$LINK_MAP->height (41);	2769	reentrant => 0,
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,	2770	after => 0,
		2771	data => WF_AUTOCANCEL,
2112	cb => sub {	2772	cb => sub {
2113	$_[0]->w->cancel;	2773	do_reload_perl;
2114		2774	undef $RELOAD_WATCHER;
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});	2775	},
2133		2776	);
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	2777	}
2139
2140	register "<global>", __PACKAGE__;
2141		2778
2142	register_command "reload" => sub {	2779	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	2780	my ($who, $arg) = @_;
2144		2781
2145	if ($who->flag (FLAG_WIZ)) {	2782	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	2783	$who->message ("reloading server.");
		2784	async { reload_perl };
2149	}	2785	}
2150	};	2786	};
2151		2787
2152	unshift @INC, $LIBDIR;	2788	unshift @INC, $LIBDIR;
		2789
		2790	my $bug_warning = 0;
		2791
		2792	our @WAIT_FOR_TICK;
		2793	our @WAIT_FOR_TICK_BEGIN;
		2794
		2795	sub wait_for_tick {
		2796	return unless $TICK_WATCHER->is_active;
		2797	return if $Coro::current == $Coro::main;
		2798
		2799	my $signal = new Coro::Signal;
		2800	push @WAIT_FOR_TICK, $signal;
		2801	$signal->wait;
		2802	}
		2803
		2804	sub wait_for_tick_begin {
		2805	return unless $TICK_WATCHER->is_active;
		2806	return if $Coro::current == $Coro::main;
		2807
		2808	my $signal = new Coro::Signal;
		2809	push @WAIT_FOR_TICK_BEGIN, $signal;
		2810	$signal->wait;
		2811	}
2153		2812
2154	$TICK_WATCHER = Event->timer (	2813	$TICK_WATCHER = Event->timer (
2155	reentrant => 0,	2814	reentrant => 0,
		2815	parked => 1,
2156	prio => 0,	2816	prio => 0,
2157	at => $NEXT_TICK || $TICK,	2817	at => $NEXT_TICK || $TICK,
2158	data => WF_AUTOCANCEL,	2818	data => WF_AUTOCANCEL,
2159	cb => sub {	2819	cb => sub {
2160	unless ($FREEZE) {	2820	if ($Coro::current != $Coro::main) {
		2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2822	unless ++$bug_warning > 10;
		2823	return;
		2824	}
		2825
		2826	$NOW = Event::time;
		2827
2161	cf::server_tick; # one server iteration	2828	cf::server_tick; # one server iteration
		2829
2162	$RUNTIME += $TICK;	2830	$RUNTIME += $TICK;
2163	}
2164
2165	$NEXT_TICK += $TICK;	2831	$NEXT_TICK += $TICK;
		2832
		2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2834	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2835	Coro::async_pool {
		2836	write_runtime
		2837	or warn "ERROR: unable to write runtime file: $!";
		2838	};
		2839	}
		2840
		2841	# my $AFTER = Event::time;
		2842	# warn $AFTER - $NOW;#d#
2166		2843
2167	# if we are delayed by four ticks or more, skip them all	2844	# if we are delayed by four ticks or more, skip them all
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2169		2846
2170	$TICK_WATCHER->at ($NEXT_TICK);	2847	$TICK_WATCHER->at ($NEXT_TICK);
2171	$TICK_WATCHER->start;	2848	$TICK_WATCHER->start;
		2849
		2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2851	$sig->send;
		2852	}
		2853	while (my $sig = shift @WAIT_FOR_TICK) {
		2854	$sig->send;
		2855	}
		2856
		2857	_post_tick;
2172	},	2858	},
2173	);	2859	);
2174		2860
		2861	{
2175	IO::AIO::max_poll_time $TICK * 0.2;	2862	BDB::max_poll_time $TICK * 0.1;
2176		2863	$BDB_POLL_WATCHER = Event->io (
2177	Event->io (	2864	reentrant => 0,
2178	fd => IO::AIO::poll_fileno,	2865	fd => BDB::poll_fileno,
2179	poll => 'r',	2866	poll => 'r',
2180	prio => 5,	2867	prio => 0,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,	2868	data => WF_AUTOCANCEL,
2187	after => 0,	2869	cb => \&BDB::poll_cb,
2188	interval => 10,	2870	);
2189	cb => sub {	2871	BDB::min_parallel 8;
2190	(Coro::unblock_sub {	2872
2191	write_runtime	2873	BDB::set_sync_prepare {
2192	or warn "ERROR: unable to write runtime file: $!";	2874	my $status;
		2875	my $current = $Coro::current;
		2876	(
		2877	sub {
		2878	$status = $!;
		2879	$current->ready; undef $current;
		2880	},
		2881	sub {
		2882	Coro::schedule while defined $current;
		2883	$! = $status;
		2884	},
		2885	)
		2886	};
		2887
		2888	unless ($DB_ENV) {
		2889	$DB_ENV = BDB::db_env_create;
		2890
		2891	cf::sync_job {
		2892	eval {
		2893	BDB::db_env_open
		2894	$DB_ENV,
		2895	$BDBDIR,
		2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2898	0666;
		2899
		2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2901
		2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2903	$DB_ENV->set_lk_detect;
		2904	};
		2905
		2906	cf::cleanup "db_env_open(db): $@" if $@;
2193	})->();	2907	};
2194	},	2908	}
2195	);	2909	}
		2910
		2911	{
		2912	IO::AIO::min_parallel 8;
		2913
		2914	undef $Coro::AIO::WATCHER;
		2915	IO::AIO::max_poll_time $TICK * 0.1;
		2916	$AIO_POLL_WATCHER = Event->io (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	fd => IO::AIO::poll_fileno,
		2920	poll => 'r',
		2921	prio => 6,
		2922	cb => \&IO::AIO::poll_cb,
		2923	);
		2924	}
		2925
		2926	# load additional modules
		2927	use cf::pod;
2196		2928
2197	END { cf::emergency_save }	2929	END { cf::emergency_save }
2198		2930
2199	1	2931	1
2200		2932

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