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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.273 by root, Mon Jun 4 12:19:08 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		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
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut	249	=item cf::lock_wait $string
180		250
181	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
183	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
184	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
185		320
186	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
187		322
188	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	332	=cut
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
		340	# this is the main coro, too bad, we have to block
		341	# till the operation succeeds, freezing the server :/
		342
212	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	344	# (but this is cancel-safe)
		345	my $freeze_guard = freeze_mainloop;
		346
		347	my $busy = 1;
		348	my @res;
		349
		350	(async {
		351	@res = eval { $job->() };
		352	warn $@ if $@;
		353	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
		355
215	while ($busy) {	356	while ($busy) {
216	Coro::cede_notself;	357	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
		367	wantarray ? @res : $res[0]
219	} else {	368	} else {
220	$coro->join;	369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
221	}	372	}
222
223	wantarray ? @res : $res[0]
224	}	373	}
225		374
226	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
227		376
228	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
230		379
231	=cut	380	=cut
232		381
233	sub coro(&) {	382	sub async_ext(&) {
234	my $cb = shift;	383	my $cb = shift;
235		384
236	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		386
243	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
245	});	389	});
246	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
247		391
248	$coro	392	$coro
249	}	393	}
250		394
251	sub write_runtime {	395	sub write_runtime {
252	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
253		404
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	406	or return;
256		407
257	my $value = $cf::RUNTIME;	408	my $value = $cf::RUNTIME + 90 + 10;
		409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	413	and return;
260		414
		415	# always fsync - this file is important
261	aio_fsync $fh	416	aio_fsync $fh
262	and return;	417	and return;
263		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
264	close $fh	422	close $fh
265	or return;	423	or return;
266		424
267	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
268	and return;	426	and return;
269		427
		428	warn "runtime file written.\n";#d#
		429
270	1	430	1
271	}	431	}
272		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
273	=back	444	=back
274		445
275	=cut	446	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		447
387	#############################################################################	448	#############################################################################
388		449
389	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
390		451
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	578	our @CB_MAP = ();
518		579
519	my %attachment;	580	my %attachment;
520		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
521	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
523		590
524	use sort 'stable';	591	use sort 'stable';
525		592
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
560		627
561	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		632
566	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	634	my $pkg = shift @arg;
568		635
569	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
610	if (ref $_[0]) {	677	if (ref $_[0]) {
611	_object_attach @_;	678	_object_attach @_;
612	} else {	679	} else {
613	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
614	}	681	}
		682	_recalc_want;
615	};	683	};
616		684
617	# all those should be optimised	685	# all those should be optimised
618	sub cf::attachable::detach {	686	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
623	reattach ($obj);	691	reattach ($obj);
624	} else {	692	} else {
625	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
626	}	694	}
		695	_recalc_want;
627	};	696	};
628		697
629	sub cf::attachable::attached {	698	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
631		700
…		…
696	# object support	765	# object support
697		766
698	sub reattach {	767	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		772
702	my $registry = $obj->registry;	773	my $registry = $obj->registry;
703		774
704	@$registry = ();	775	@$registry = ();
705		776
…		…
752	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
753		824
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	829	close $fh;
759		830
760	if (@$objs) {	831	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	837	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
768	}	839	}
769	} else {	840	} else {
770	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
798	or return;	869	or return;
799		870
800	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	872	(aio_load "$filename.pst", $av) >= 0
802	or return;	873	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
804	}	875	}
805		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	879	return ($data, $av);
807	}	880	}
808		881
809	#############################################################################	882	#############################################################################
810	# command handling &c	883	# command handling &c
…		…
835	=cut	908	=cut
836		909
837	sub register_extcmd {	910	sub register_extcmd {
838	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
839		912
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
844	}	914	}
845		915
846	cf::player->attach (	916	cf::player->attach (
847	on_command => sub {	917	on_command => sub {
848	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
861		931
862	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
863		933
864	if (ref $msg) {	934	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	938	}
869	}	939	}
870	} else {	940	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		943
874	cf::override;	944	cf::override;
875	},	945	},
876	);	946	);
877		947
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	948	sub load_extension {
885	my ($path) = @_;	949	my ($path) = @_;
886		950
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	952	my $base = $1;
889	my $pkg = $1;	953	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
892		956
893	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
894		958
895	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
896	or die "$path: $!";	960	or die "$path: $!";
897		961
898	my $source =	962	my $source =
899	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
902	. "\n};\n1";	966	. "\n};\n1";
903		967
904	eval $source	968	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	970	: "extension disabled.\n";
907		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	972	warn $@;
909	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
910		974	exit 1;
911	# no strict 'refs';	975	}
912	# @{"$pkg\::ISA"} = ext::;	976	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	977	}
927		978
928	# remove commands	979	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	980	}
953		981
954	sub load_extensions {	982	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	984	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
961	}	989	}
962	}	990	}
963		991
964	#############################################################################	992	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		993
1002	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1003		995
1004	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1005		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1006	=head3 cf::player	1004	=head3 cf::player
1007		1005
1008	=over 4	1006	=over 4
1009		1007
1010	=item cf::player::exists $login	1008	=item cf::player::find $login
1011		1009
1012	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1013		1011
1014	=cut	1012	=cut
1015		1013
1016	sub cf::player::exists($) {	1014	sub playerdir($) {
1017	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1019	}	1017	}
1020		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1022		1191
1023	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1024		1193
1025	=cut	1194	=cut
1026		1195
1027	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1028	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1029		1198
1030	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1031		1200
1032	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
1033	}	1243	}
1034		1244
1035	=back	1245	=back
1036
1037		1246
1038	=head3 cf::map	1247	=head3 cf::map
1039		1248
1040	=over 4	1249	=over 4
1041		1250
…		…
1044	package cf::map;	1253	package cf::map;
1045		1254
1046	use Fcntl;	1255	use Fcntl;
1047	use Coro::AIO;	1256	use Coro::AIO;
1048		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1049	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1264
1054	sub generate_random_map {	1265	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1268	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1071	}	1410	}
1072		1411
1073	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1074	# all maps in C++...	1413	# all maps in C++...
1075	sub change_all_map_light {	1414	sub change_all_map_light {
1076	my ($change) = @_;	1415	my ($change) = @_;
1077		1416
1078	$_->change_map_light ($change) for values %cf::MAP;	1417	$_->change_map_light ($change)
		1418	for grep $_->outdoor, values %cf::MAP;
1079	}	1419	}
1080		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1081	sub try_load_header($) {	1429	sub load_header_from($) {
1082	my ($path) = @_;	1430	my ($self, $path) = @_;
1083		1431
1084	utf8::encode $path;	1432	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1086	or return;	1437	or return;
1087		1438
1088	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1089	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1090		1485
1091	$map->load_header ($path)	1486	$self->default_region (cf::region::find_by_path $self->{path})
1092	or return;	1487	unless $self->default_region;
1093		1488
1094	$map->{load_path} = $path;	1489	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1490	}
1099		1491
		1492	sub find;
1100	sub find_map {	1493	sub find {
1101	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1102		1495
1103	#warn "find_map<$path,$origin>\n";#d#	1496	$path = normalise $path, $origin && $origin->path;
1104		1497
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1498	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1499
1108	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1109	# do it the slow way	1501	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1502	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1503	or return;
1124		1504
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1505	$map->{last_save} = $cf::RUNTIME;
1136		1506
1137	$map->reset if $map->should_reset;	1507	$map->load_header
		1508	or return;
1138		1509
		1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
		1513	$map->reset;
		1514	undef $guard;
		1515	return find $path;
		1516	}
		1517
1139	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1140	}	1519	}
1141	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1142		1524
1143	sub load {	1525	sub load {
1144	my ($self) = @_;	1526	my ($self) = @_;
1145		1527
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1528	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		1529
1150	my $path = $self->{path};	1530	my $path = $self->{path};
1151		1531
		1532	{
		1533	my $guard = cf::lock_acquire "map_load:$path";
		1534
		1535	return if $self->in_memory != cf::MAP_SWAPPED;
		1536
		1537	$self->in_memory (cf::MAP_LOADING);
		1538
1152	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1153	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1545	or return;
1155		1546
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1548	if delete $self->{load_original};
1157		1549
1158	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1551	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1553	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1163	}	1555	}
1164	}	1556	}
1165		1557
		1558	Coro::cede;
1166	# now do the right thing for maps	1559	# now do the right thing for maps
1167	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1179	$self->activate;	1572	$self->activate;
1180	}	1573	}
1181		1574
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1576	}
1184		1577
1185	sub load_map_sync {	1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
		1612	}
		1613
		1614	sub find_sync {
1186	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1187		1616
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1617	cf::sync_job { find $path, $origin }
		1618	}
1189		1619
1190	cf::sync_job {	1620	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1621	my ($map) = @_;
1192	or return;	1622
		1623	cf::sync_job { $map->load };
		1624	}
		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
1193	$map->load;	1644	$map->load;
1194	$map	1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
1195	}	1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
1196	}	1654	}
1197		1655
1198	sub save {	1656	sub save {
1199	my ($self) = @_;	1657	my ($self) = @_;
1200		1658
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1660
1204	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1205		1662
1206	return unless $self->dirty;	1663	return unless $self->dirty;
1207		1664
		1665	my $save = $self->save_path; utf8::encode $save;
		1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1667
1208	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1209		1669
1210	return if $self->{deny_save};	1670	return if $self->{deny_save};
1211		1671
1212	warn "saving map ", $self->path;	1672	local $self->{last_access} = $self->last_access;#d#
		1673
		1674	cf::async {
		1675	$_->contr->save for $self->players;
		1676	};
1213		1677
1214	if ($uniq) {	1678	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1681	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1683	}
1220	}	1684	}
1221		1685
1222	sub swap_out {	1686	sub swap_out {
1223	my ($self) = @_;	1687	my ($self) = @_;
		1688
		1689	# save first because save cedes
		1690	$self->save;
		1691
		1692	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1693
1225	return if $self->players;	1694	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1696	return if $self->{deny_save};
1228		1697
1229	$self->save;
1230	$self->clear;	1698	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1699	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1700	}
1233		1701
		1702	sub reset_at {
		1703	my ($self) = @_;
		1704
		1705	# TODO: safety, remove and allow resettable per-player maps
		1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1707	return 1e99 if $self->{deny_reset};
		1708
		1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1711
		1712	$time + $to
		1713	}
		1714
1234	sub should_reset {	1715	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1716	my ($self) = @_;
1251		1717
1252	utf8::encode (my $save = $self->{path}->save_path);	1718	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1719	}
1256		1720
1257	sub reset {	1721	sub reset {
1258	my ($self) = @_;	1722	my ($self) = @_;
1259		1723
		1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1725
1260	return if $self->players;	1726	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1262		1728
1263	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;#d#
1264		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
		1740
1265	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1266		1744
1267	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1268		1746
1269	$self->unlink_save;	1747	$self->unlink_save;
1270	$self->destroy;	1748	$self->destroy;
1271	}	1749	}
1272		1750
1273	sub customise_for {	1751	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1752
1276	if ($map->per_player) {	1753	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1754	my ($self) = @_;
1278	}
1279		1755
1280	$map	1756	delete $cf::MAP{$self->path};
1281	}
1282		1757
1283	sub emergency_save {	1758	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1759
1286	warn "enter emergency map save\n";	1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
		1762	$self->{deny_save} = 1;
		1763	$self->reset_timeout (1);
		1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1765
1288	cf::sync_job {	1766	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1767
1290	$_->save for values %cf::MAP;	1768	$self->reset; # polite request, might not happen
		1769	}
		1770
		1771	=item cf::map::unique_maps
		1772
		1773	Returns an arrayref of paths of all shared maps that have
		1774	instantiated unique items. May block.
		1775
		1776	=cut
		1777
		1778	sub unique_maps() {
		1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
		1781
		1782	my @paths;
		1783
		1784	for (@$files) {
		1785	utf8::decode $_;
		1786	next if /\.pst$/;
		1787	next unless /^$PATH_SEP/o;
		1788
		1789	push @paths, cf::map::normalise $_;
1291	};	1790	}
1292		1791
1293	warn "end emergency map save\n";	1792	\@paths
1294	}	1793	}
1295		1794
1296	package cf;	1795	package cf;
1297		1796
1298	=back	1797	=back
1299		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
		1804
		1805	=over 4
		1806
		1807	=item $ob->inv_recursive
		1808
		1809	Returns the inventory of the object _and_ their inventories, recursively.
		1810
		1811	=cut
		1812
		1813	sub inv_recursive_;
		1814	sub inv_recursive_ {
		1815	map { $_, inv_recursive_ $_->inv } @_
		1816	}
		1817
		1818	sub inv_recursive {
		1819	inv_recursive_ inv $_[0]
		1820	}
		1821
		1822	package cf;
		1823
		1824	=back
1300		1825
1301	=head3 cf::object::player	1826	=head3 cf::object::player
1302		1827
1303	=over 4	1828	=over 4
1304		1829
…		…
1340	(ref $cf::CFG{"may_$access"}	1865	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1866	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1867	: $cf::CFG{"may_$access"})
1343	}	1868	}
1344		1869
		1870	=item $player_object->enter_link
		1871
		1872	Freezes the player and moves him/her to a special map (C<{link}>).
		1873
		1874	The player should be reasonably safe there for short amounts of time. You
		1875	I<MUST> call C<leave_link> as soon as possible, though.
		1876
		1877	Will never block.
		1878
		1879	=item $player_object->leave_link ($map, $x, $y)
		1880
		1881	Moves the player out of the special C<{link}> map onto the specified
		1882	map. If the map is not valid (or omitted), the player will be moved back
		1883	to the location he/she was before the call to C<enter_link>, or, if that
		1884	fails, to the emergency map position.
		1885
		1886	Might block.
		1887
		1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
		1899
1345	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1901	my ($self) = @_;
1347		1902
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
		1904
		1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1906
		1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1908	if $self->map && $self->map->{path} ne "{link}";
		1909
		1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	1911	}
1356		1912
1357	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
1359		1915
		1916	return unless $self->contr->active;
		1917
1360	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1361		1919
1362	unless ($map) {	1920	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1921	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1922	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1923	$map = cf::map::find $map;
1368		1924
1369	unless ($map) {	1925	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1926	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1927	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1928	or die "FATAL: cannot load emergency map\n";
1373	}	1929	}
1374	}	1930	}
1375		1931
1376	($x, $y) = (-1, -1)	1932	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1382		1938
1383	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1384		1941
		1942	return unless $self->contr->active;
1385	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1387	}	1947	}
1388		1948
1389	=item $player_object->goto_map ($map, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1390		1950
1391	=cut	1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
1392		1955
		1956	=cut
		1957
		1958	our $GOTOGEN;
		1959
1393	sub cf::object::player::goto_map {	1960	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		1965
1396	$self->enter_link;	1966	$self->enter_link;
1397		1967
1398	(Coro::async {	1968	(async {
1399	$path = new cf::path $path;	1969	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
		1974	$map = $check->($map) if $check && $map;
		1975	} else {
		1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1403		1978
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1979	$map
		1980	};
1406		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1408	})->prio (1);	1991	})->prio (1);
1409	}	1992	}
1410		1993
1411	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1412		1995
…		…
1414		1997
1415	sub parse_random_map_params {	1998	sub parse_random_map_params {
1416	my ($spec) = @_;	1999	my ($spec) = @_;
1417		2000
1418	my $rmp = { # defaults	2001	my $rmp = { # defaults
1419	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1421	};	2006	};
1422		2007
1423	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1425		2010
…		…
1429	$rmp	2014	$rmp
1430	}	2015	}
1431		2016
1432	sub prepare_random_map {	2017	sub prepare_random_map {
1433	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2021
1435	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2024	# that depends on the exit object
1438		2025
1439	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1440		2027
1441	if ($exit->map) {	2028	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1446	}	2033	}
1447		2034
1448	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1449		2036
1450	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1452		2040
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1455		2045
1456	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2047	$exit->msg (undef);
1458	}	2048	}
1459	}	2049	}
…		…
1461	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1463		2053
1464	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
1465		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
		2066
1466	$self->enter_link;	2067	$self->enter_link;
1467		2068
1468	(Coro::async {	2069	(async {
		2070	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2071	unless (eval {
1470		2072	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2073
1477	1;	2074	1;
1478	}) {	2075	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2080
1484	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2082	$self->leave_link;
1486	}	2083	}
1487	})->prio (1);	2084	})->prio (1);
…		…
1500		2097
1501	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1503		2100
1504	utf8::encode $text;	2101	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2103	}
1507		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1508		2117
1509	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1510		2119
1511	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1537	on_reply => sub {	2146	on_reply => sub {
1538	my ($ns, $msg) = @_;	2147	my ($ns, $msg) = @_;
1539		2148
1540	# this weird shuffling is so that direct followup queries	2149	# this weird shuffling is so that direct followup queries
1541	# get handled first	2150	# get handled first
1542	my $queue = delete $ns->{query_queue};	2151	my $queue = delete $ns->{query_queue}
		2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2153
1544	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2156
1546	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1547		2158
1548	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2160	if (@$queue) {
…		…
1553	}	2164	}
1554	}	2165	}
1555	},	2166	},
1556	);	2167	);
1557		2168
1558	=item $client->coro (\&cb)	2169	=item $client->async (\&cb)
1559		2170
1560	Create a new coroutine, running the specified callback. The coroutine will	2171	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2172	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2173	or loss of connection).
1563		2174
1564	=cut	2175	=cut
1565		2176
1566	sub cf::client::coro {	2177	sub cf::client::async {
1567	my ($self, $cb) = @_;	2178	my ($self, $cb) = @_;
1568		2179
1569	my $coro; $coro = async {	2180	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2181
1576	$coro->on_destroy (sub {	2182	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2183	delete $self->{_coro}{$coro+0};
1578	});	2184	});
1579		2185
…		…
1612		2218
1613	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1614		2220
1615	=pod	2221	=pod
1616		2222
1617	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1618		2224
1619	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1620	cf::object::player player	2226	cf::object::player player
1621	cf::player peaceful	2227	cf::player peaceful
1622	cf::map trigger	2228	cf::map trigger
…		…
1707	#############################################################################	2313	#############################################################################
1708		2314
1709	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
1710		2316
1711	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
1712	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1713	excludes objects.	2319	convert to/from binary).
1714		2320
1715	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
1716	using it, it should be unique.	2322	using it, it should be unique.
1717		2323
1718	=over 4	2324	=over 4
1719		2325
1720	=item $hashref = cf::db_get $family
1721
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
1727		2327
1728	Returns a single value from the database	2328	Returns a single value from the database.
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734		2329
1735	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
1736		2331
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747		2333
1748	=cut	2334	=cut
1749		2335
1750	our $DB;	2336	our $DB;
1751		2337
1752	{	2338	sub db_init {
1753	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
1754		2341
1755	sub db_load() {	2342	cf::sync_job {
1756	warn "loading database $path\n";#d# remove later	2343	eval {
1757	$DB = stat $path ? Storable::retrieve $path : { };	2344	$DB->set_flags (BDB::CHKSUM);
1758	}
1759		2345
1760	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1761		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1762	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
1763	warn "saving database $path\n";#d# remove later	2349	};
1764	waitpid $pid, 0 if $pid;	2350	cf::cleanup "db_open(db): $@" if $@;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}	2351	};
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});	2352	}
		2353	}
1783		2354
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {	2355	sub db_get($$) {
1790	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
1795	sub db_put($$;$) {	2366	sub db_put($$$) {
1796	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
1797	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1798	} else {	2369	}
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803		2370
1804	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
1805	prio => 10000,	2372
1806	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
1807	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
1808	},	2403	}
1809	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
1810	}	2483	}
1811		2484
1812	#############################################################################	2485	#############################################################################
1813	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	reload_archetypes;
		2566	reload_treasures;
		2567
		2568	warn "finished reloading resource files\n";
		2569	}
		2570
		2571	sub init {
		2572	reload_resources;
		2573	}
1814		2574
1815	sub cfg_load {	2575	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2576	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	2577	or return;
1818		2578
1819	local $/;	2579	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2580	*CFG = YAML::Syck::Load <$fh>;
		2581
		2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2583
		2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2586
		2587	if (exists $CFG{mlockall}) {
		2588	eval {
		2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2590	and die "WARNING: m(un)lockall failed: $!\n";
		2591	};
		2592	warn $@ if $@;
		2593	}
1821	}	2594	}
1822		2595
1823	sub main {	2596	sub main {
1824	# we must not ever block the main coroutine	2597	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2598	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2600	(async {
1828	Event::one_event;	2601	Event::one_event;
1829	})->();	2602	})->prio (Coro::PRIO_MAX);
1830	};	2603	};
1831		2604
1832	cfg_load;	2605	cfg_load;
1833	db_load;	2606	db_init;
1834	load_extensions;	2607	load_extensions;
		2608
		2609	$TICK_WATCHER->start;
1835	Event::loop;	2610	Event::loop;
1836	}	2611	}
1837		2612
1838	#############################################################################	2613	#############################################################################
1839	# initialisation	2614	# initialisation and cleanup
1840		2615
		2616	# install some emergency cleanup handlers
		2617	BEGIN {
		2618	for my $signal (qw(INT HUP TERM)) {
		2619	Event->signal (
		2620	reentrant => 0,
		2621	data => WF_AUTOCANCEL,
		2622	signal => $signal,
		2623	prio => 0,
		2624	cb => sub {
		2625	cf::cleanup "SIG$signal";
		2626	},
		2627	);
		2628	}
		2629	}
		2630
		2631	sub emergency_save() {
		2632	my $freeze_guard = cf::freeze_mainloop;
		2633
		2634	warn "enter emergency perl save\n";
		2635
		2636	cf::sync_job {
		2637	# use a peculiar iteration method to avoid tripping on perl
		2638	# refcount bugs in for. also avoids problems with players
		2639	# and maps saved/destroyed asynchronously.
		2640	warn "begin emergency player save\n";
		2641	for my $login (keys %cf::PLAYER) {
		2642	my $pl = $cf::PLAYER{$login} or next;
		2643	$pl->valid or next;
		2644	$pl->save;
		2645	}
		2646	warn "end emergency player save\n";
		2647
		2648	warn "begin emergency map save\n";
		2649	for my $path (keys %cf::MAP) {
		2650	my $map = $cf::MAP{$path} or next;
		2651	$map->valid or next;
		2652	$map->save;
		2653	}
		2654	warn "end emergency map save\n";
		2655
		2656	warn "begin emergency database checkpoint\n";
		2657	BDB::db_env_txn_checkpoint $DB_ENV;
		2658	warn "end emergency database checkpoint\n";
		2659	};
		2660
		2661	warn "leave emergency perl save\n";
		2662	}
		2663
		2664	sub post_cleanup {
		2665	my ($make_core) = @_;
		2666
		2667	warn Carp::longmess "post_cleanup backtrace"
		2668	if $make_core;
		2669	}
		2670
1841	sub reload() {	2671	sub do_reload_perl() {
1842	# can/must only be called in main	2672	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2673	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2674	warn "can only reload from main coroutine";
1845	return;	2675	return;
1846	}	2676	}
1847		2677
1848	warn "reloading...";	2678	warn "reloading...";
1849		2679
1850	local $FREEZE = 1;	2680	warn "entering sync_job";
		2681
		2682	cf::sync_job {
		2683	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2684	cf::emergency_save;
		2685	cf::write_runtime; # external watchdog should not bark
1852		2686
1853	eval {	2687	warn "syncing database to disk";
		2688	BDB::db_env_txn_checkpoint $DB_ENV;
		2689
1854	# if anything goes wrong in here, we should simply crash as we already saved	2690	# if anything goes wrong in here, we should simply crash as we already saved
1855		2691
1856	# cancel all watchers	2692	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2693	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2694	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2695	}
1860		2696
		2697	warn "flushing outstanding aio requests";
		2698	for (;;) {
		2699	BDB::flush;
		2700	IO::AIO::flush;
		2701	Coro::cede;
		2702	last unless IO::AIO::nreqs || BDB::nreqs;
		2703	warn "iterate...";
		2704	}
		2705
		2706	++$RELOAD;
		2707
1861	# cancel all extension coros	2708	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2709	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2710	%EXT_CORO = ();
1864		2711
1865	# unload all extensions	2712	warn "removing commands";
1866	for (@exts) {	2713	%COMMAND = ();
		2714
		2715	warn "removing ext commands";
		2716	%EXTCMD = ();
		2717
		2718	warn "unloading/nuking all extensions";
		2719	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2720	warn "... unloading $pkg";
1868	unload_extension $_;	2721
		2722	if (my $cb = $pkg->can ("unload")) {
		2723	eval {
		2724	$cb->($pkg);
		2725	1
		2726	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2727	}
1870		2728
		2729	warn "... nuking $pkg";
		2730	Symbol::delete_package $pkg;
		2731	}
		2732
1871	# unload all modules loaded from $LIBDIR	2733	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2734	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2736
1875	warn "removing <$k>";	2737	warn "... unloading $k";
1876	delete $INC{$k};	2738	delete $INC{$k};
1877		2739
1878	$k =~ s/\.pm$//;	2740	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2741	$k =~ s/\//::/g;
1880		2742
…		…
1883	}	2745	}
1884		2746
1885	Symbol::delete_package $k;	2747	Symbol::delete_package $k;
1886	}	2748	}
1887		2749
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2750	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2751	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2753
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2754	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2755	delete $INC{"cf.pm"};
		2756	delete $INC{"cf/pod.pm"};
1901		2757
1902	# don't, removes xs symbols, too,	2758	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2759	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2760	#Symbol::delete_package __PACKAGE__;
1905		2761
1906	# reload cf.pm	2762	warn "unload completed, starting to reload now";
		2763
1907	warn "reloading cf.pm";	2764	warn "reloading cf.pm";
1908	require cf;	2765	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2767
1911	# load config and database again	2768	warn "loading config and database again";
1912	cf::cfg_load;	2769	cf::cfg_load;
1913	cf::db_load;
1914		2770
1915	# load extensions
1916	warn "load extensions";	2771	warn "loading extensions";
1917	cf::load_extensions;	2772	cf::load_extensions;
1918		2773
1919	# reattach attachments to objects	2774	warn "reattaching attachments to objects/players";
1920	warn "reattach";	2775	_global_reattach; # objects, sockets
1921	_global_reattach;	2776	warn "reattaching attachments to maps";
1922	};	2777	reattach $_ for values %MAP;
		2778	warn "reattaching attachments to players";
		2779	reattach $_ for values %PLAYER;
1923		2780
1924	if ($@) {	2781	warn "leaving sync_job";
		2782
		2783	1
		2784	} or do {
1925	warn $@;	2785	warn $@;
1926	warn "error while reloading, exiting.";	2786	warn "error while reloading, exiting.";
1927	exit 1;	2787	exit 1;
1928	}	2788	};
1929		2789
1930	warn "reloaded successfully";	2790	warn "reloaded";
1931	};	2791	};
1932		2792
1933	#############################################################################	2793	our $RELOAD_WATCHER; # used only during reload
1934		2794
1935	unless ($LINK_MAP) {	2795	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	2796	# doing reload synchronously and two reloads happen back-to-back,
		2797	# coro crashes during coro_state_free->destroy here.
1937		2798
1938	$LINK_MAP->width (41);	2799	$RELOAD_WATCHER ||= Event->timer (
1939	$LINK_MAP->height (41);	2800	reentrant => 0,
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,	2801	after => 0,
		2802	data => WF_AUTOCANCEL,
1948	cb => sub {	2803	cb => sub {
1949	$_[0]->w->cancel;	2804	do_reload_perl;
1950		2805	undef $RELOAD_WATCHER;
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});	2806	},
1969		2807	);
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	2808	}
1975
1976	register "<global>", __PACKAGE__;
1977		2809
1978	register_command "reload" => sub {	2810	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2811	my ($who, $arg) = @_;
1980		2812
1981	if ($who->flag (FLAG_WIZ)) {	2813	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	2814	$who->message ("reloading server.");
		2815	async { reload_perl };
1985	}	2816	}
1986	};	2817	};
1987		2818
1988	unshift @INC, $LIBDIR;	2819	unshift @INC, $LIBDIR;
1989		2820
		2821	my $bug_warning = 0;
		2822
		2823	our @WAIT_FOR_TICK;
		2824	our @WAIT_FOR_TICK_BEGIN;
		2825
		2826	sub wait_for_tick {
		2827	return unless $TICK_WATCHER->is_active;
		2828	return if $Coro::current == $Coro::main;
		2829
		2830	my $signal = new Coro::Signal;
		2831	push @WAIT_FOR_TICK, $signal;
		2832	$signal->wait;
		2833	}
		2834
		2835	sub wait_for_tick_begin {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK_BEGIN, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	my $min = 1e6;#d#
		2845	my $avg = 10;
1990	$TICK_WATCHER = Event->timer (	2846	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2847	reentrant => 0,
		2848	parked => 1,
1992	prio => 0,	2849	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2850	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2851	data => WF_AUTOCANCEL,
1995	cb => sub {	2852	cb => sub {
1996	unless ($FREEZE) {	2853	if ($Coro::current != $Coro::main) {
		2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2855	unless ++$bug_warning > 10;
		2856	return;
		2857	}
		2858
		2859	$NOW = $tick_start = Event::time;
		2860
1997	cf::server_tick; # one server iteration	2861	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2862
		2863	0 && sync_job {#d#
		2864	for(1..10) {
		2865	my $t = Event::time;
		2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2867	or die;
		2868
		2869	$map->width (50);
		2870	$map->height (50);
		2871	$map->alloc;
		2872	$map->_load_objects ("/tmp/x.map", 1);
		2873	my $t = Event::time - $t;
		2874
		2875	#next unless $t < 0.0013;#d#
		2876	if ($t < $min) {
		2877	$min = $t;
		2878	}
		2879	$avg = $avg * 0.99 + $t * 0.01;
		2880	}
		2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2882	exit 0;
		2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1999	}	2884	};
2000		2885
		2886	$RUNTIME += $TICK;
2001	$NEXT_TICK += $TICK;	2887	$NEXT_TICK += $TICK;
2002		2888
		2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2891	Coro::async_pool {
		2892	write_runtime
		2893	or warn "ERROR: unable to write runtime file: $!";
		2894	};
		2895	}
		2896
		2897	# my $AFTER = Event::time;
		2898	# warn $AFTER - $NOW;#d#
		2899
		2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2901	$sig->send;
		2902	}
		2903	while (my $sig = shift @WAIT_FOR_TICK) {
		2904	$sig->send;
		2905	}
		2906
		2907	$NOW = Event::time;
		2908
2003	# if we are delayed by four ticks or more, skip them all	2909	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2005		2911
2006	$TICK_WATCHER->at ($NEXT_TICK);	2912	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2913	$TICK_WATCHER->start;
		2914
		2915	$LOAD = ($NOW - $tick_start) / $TICK;
		2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2917
		2918	_post_tick;
		2919
		2920
2008	},	2921	},
2009	);	2922	);
2010		2923
		2924	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2925	BDB::max_poll_time $TICK * 0.1;
2012		2926	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2927	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2928	fd => BDB::poll_fileno,
2015	poll => 'r',	2929	poll => 'r',
2016	prio => 5,	2930	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2023	after => 0,	2932	cb => \&BDB::poll_cb,
2024	interval => 10,	2933	);
2025	cb => sub {	2934	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	2935
2027	write_runtime	2936	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	2937	my $status;
		2938	my $current = $Coro::current;
		2939	(
		2940	sub {
		2941	$status = $!;
		2942	$current->ready; undef $current;
		2943	},
		2944	sub {
		2945	Coro::schedule while defined $current;
		2946	$! = $status;
		2947	},
		2948	)
		2949	};
		2950
		2951	unless ($DB_ENV) {
		2952	$DB_ENV = BDB::db_env_create;
		2953
		2954	cf::sync_job {
		2955	eval {
		2956	BDB::db_env_open
		2957	$DB_ENV,
		2958	$BDBDIR,
		2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2961	0666;
		2962
		2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2964
		2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2966	$DB_ENV->set_lk_detect;
		2967	};
		2968
		2969	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	2970	};
2030	},	2971	}
2031	);	2972	}
		2973
		2974	{
		2975	IO::AIO::min_parallel 8;
		2976
		2977	undef $Coro::AIO::WATCHER;
		2978	IO::AIO::max_poll_time $TICK * 0.1;
		2979	$AIO_POLL_WATCHER = Event->io (
		2980	reentrant => 0,
		2981	data => WF_AUTOCANCEL,
		2982	fd => IO::AIO::poll_fileno,
		2983	poll => 'r',
		2984	prio => 6,
		2985	cb => \&IO::AIO::poll_cb,
		2986	);
		2987	}
		2988
		2989	my $_log_backtrace;
		2990
		2991	sub _log_backtrace {
		2992	my ($msg, @addr) = @_;
		2993
		2994	$msg =~ s/\n//;
		2995
		2996	# limit the # of concurrent backtraces
		2997	if ($_log_backtrace < 2) {
		2998	++$_log_backtrace;
		2999	async {
		3000	my @bt = fork_call {
		3001	@addr = map { sprintf "%x", $_ } @addr;
		3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3004	or die "addr2line: $!";
		3005
		3006	my @funcs;
		3007	my @res = <$fh>;
		3008	chomp for @res;
		3009	while (@res) {
		3010	my ($func, $line) = splice @res, 0, 2, ();
		3011	push @funcs, "[$func] $line";
		3012	}
		3013
		3014	@funcs
		3015	};
		3016
		3017	LOG llevInfo, "[ABT] $msg\n";
		3018	LOG llevInfo, "[ABT] $_\n" for @bt;
		3019	--$_log_backtrace;
		3020	};
		3021	} else {
		3022	LOG llevInfo, "[ABT] $msg\n";
		3023	LOG llevInfo, "[ABT] [suppressed]\n";
		3024	}
		3025	}
		3026
		3027	# load additional modules
		3028	use cf::pod;
		3029
		3030	END { cf::emergency_save }
2032		3031
2033	1	3032	1
2034		3033

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