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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut	234	=item cf::lock_wait $string
180		235
181	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
183	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
184	}	264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
185		305
186	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
187		307
188	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	317	=cut
198		318
199	sub sync_job(&) {	319	sub sync_job(&) {
200	my ($job) = @_;	320	my ($job) = @_;
201		321
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 == $Coro::main) {	322	if ($Coro::current == $Coro::main) {
		323	# this is the main coro, too bad, we have to block
		324	# till the operation succeeds, freezing the server :/
		325
212	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	327	# (but this is cancel-safe)
		328	my $freeze_guard = freeze_mainloop;
		329
		330	my $busy = 1;
		331	my @res;
		332
		333	(async {
		334	@res = eval { $job->() };
		335	warn $@ if $@;
		336	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
		338
215	while ($busy) {	339	while ($busy) {
216	Coro::cede_notself;	340	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	341	}
		342
		343	wantarray ? @res : $res[0]
219	} else {	344	} else {
220	$coro->join;	345	# we are in another coroutine, how wonderful, everything just works
		346
		347	$job->()
221	}	348	}
222
223	wantarray ? @res : $res[0]
224	}	349	}
225		350
226	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
227		352
228	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
230		355
231	=cut	356	=cut
232		357
233	sub coro(&) {	358	sub async_ext(&) {
234	my $cb = shift;	359	my $cb = shift;
235		360
236	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		362
243	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
245	});	365	});
246	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
247		367
248	$coro	368	$coro
249	}	369	}
250		370
251	sub write_runtime {	371	sub write_runtime {
252	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
253		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	386	or return;
256		387
257	my $value = $cf::RUNTIME;	388	my $value = $cf::RUNTIME + 90 + 10;
		389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	393	and return;
260		394
		395	# always fsync - this file is important
261	aio_fsync $fh	396	aio_fsync $fh
262	and return;	397	and return;
263		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
264	close $fh	402	close $fh
265	or return;	403	or return;
266		404
267	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
268	and return;	406	and return;
269		407
		408	warn "... done writing runtime.\n";#d#
		409
270	1	410	1
271	}	411	}
272		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
273	=back	424	=back
274		425
275	=cut	426	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($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		427
387	#############################################################################	428	#############################################################################
388		429
389	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
390		431
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	558	our @CB_MAP = ();
518		559
519	my %attachment;	560	my %attachment;
520		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
521	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
523		570
524	use sort 'stable';	571	use sort 'stable';
525		572
…		…
696	# object support	743	# object support
697		744
698	sub reattach {	745	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		750
702	my $registry = $obj->registry;	751	my $registry = $obj->registry;
703		752
704	@$registry = ();	753	@$registry = ();
705		754
…		…
752	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
753		802
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	807	close $fh;
759		808
760	if (@$objs) {	809	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	815	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
768	}	817	}
769	} else {	818	} else {
770	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
798	or return;	847	or return;
799		848
800	unless (aio_stat "$filename.pst") {	849	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	850	(aio_load "$filename.pst", $av) >= 0
802	or return;	851	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	852	$av = eval { (Storable::thaw $av)->{objs} };
804	}	853	}
805		854
		855	warn sprintf "loading %s (%d)\n",
		856	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	857	return ($data, $av);
807	}	858	}
808		859
809	#############################################################################	860	#############################################################################
810	# command handling &c	861	# command handling &c
…		…
835	=cut	886	=cut
836		887
837	sub register_extcmd {	888	sub register_extcmd {
838	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
839		890
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
844	}	892	}
845		893
846	cf::player->attach (	894	cf::player->attach (
847	on_command => sub {	895	on_command => sub {
848	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
861		909
862	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
863		911
864	if (ref $msg) {	912	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	916	}
869	}	917	}
870	} else {	918	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		921
874	cf::override;	922	cf::override;
875	},	923	},
876	);	924	);
877		925
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	926	sub load_extension {
885	my ($path) = @_;	927	my ($path) = @_;
886		928
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	930	my $base = $1;
889	my $pkg = $1;	931	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
892		934
893	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
894		936
895	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
896	or die "$path: $!";	938	or die "$path: $!";
897		939
898	my $source =	940	my $source =
899	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
902	. "\n};\n1";	944	. "\n};\n1";
903		945
904	eval $source	946	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	948	: "extension disabled.\n";
907		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	950	warn $@;
909	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
910		952	exit 1;
911	# no strict 'refs';	953	}
912	# @{"$pkg\::ISA"} = ext::;	954	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	# }	955	}
927		956
928	# remove commands	957	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	}	958	}
953		959
954	sub load_extensions {	960	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	962	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
961	}	967	}
962	}	968	}
963		969
964	#############################################################################	970	#############################################################################
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		971
1002	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1003		973
1004	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1005		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1006	=head3 cf::player	982	=head3 cf::player
1007		983
1008	=over 4	984	=over 4
1009		985
1010	=item cf::player::exists $login	986	=item cf::player::find $login
1011		987
1012	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1013		989
1014	=cut	990	=cut
1015		991
1016	sub cf::player::exists($) {	992	sub playerdir($) {
1017	cf::player::find $_[0]	993	"$PLAYERDIR/"
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1019	}	995	}
1020		996
		997	sub path($) {
		998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		999
		1000	(playerdir $login) . "/playerdata"
		1001	}
		1002
		1003	sub find_active($) {
		1004	$cf::PLAYER{$_[0]}
		1005	and $cf::PLAYER{$_[0]}->active
		1006	and $cf::PLAYER{$_[0]}
		1007	}
		1008
		1009	sub exists($) {
		1010	my ($login) = @_;
		1011
		1012	$cf::PLAYER{$login}
		1013	or cf::sync_job { !aio_stat path $login }
		1014	}
		1015
		1016	sub find($) {
		1017	return $cf::PLAYER{$_[0]} || do {
		1018	my $login = $_[0];
		1019
		1020	my $guard = cf::lock_acquire "user_find:$login";
		1021
		1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
		1030	my $pl = load_pl path $login
		1031	or return;
		1032	$cf::PLAYER{$login} = $pl
		1033	}
		1034	}
		1035	}
		1036
		1037	sub save($) {
		1038	my ($pl) = @_;
		1039
		1040	return if $pl->{deny_save};
		1041
		1042	my $path = path $pl;
		1043	my $guard = cf::lock_acquire "user_save:$path";
		1044
		1045	return if $pl->{deny_save};
		1046
		1047	aio_mkdir playerdir $pl, 0770;
		1048	$pl->{last_save} = $cf::RUNTIME;
		1049
		1050	$pl->save_pl ($path);
		1051	Coro::cede;
		1052	}
		1053
		1054	sub new($) {
		1055	my ($login) = @_;
		1056
		1057	my $self = create;
		1058
		1059	$self->ob->name ($login);
		1060	$self->{deny_save} = 1;
		1061
		1062	$cf::PLAYER{$login} = $self;
		1063
		1064	$self
		1065	}
		1066
		1067	=item $pl->quit_character
		1068
		1069	Nukes the player without looking back. If logged in, the connection will
		1070	be destroyed. May block for a long time.
		1071
		1072	=cut
		1073
		1074	sub quit_character {
		1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
		1078
		1079	$pl->{deny_save} = 1;
		1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1081
		1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1083	$pl->deactivate;
		1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1085	$pl->ns->destroy if $pl->ns;
		1086
		1087	my $path = playerdir $pl;
		1088	my $temp = "$path~$cf::RUNTIME~deleting~";
		1089	aio_rename $path, $temp;
		1090	delete $cf::PLAYER{$pl->ob->name};
		1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
		1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
		1113	}
		1114
		1115	=item cf::player::list_logins
		1116
		1117	Returns am arrayref of all valid playernames in the system, can take a
		1118	while and may block, so not sync_job-capable, ever.
		1119
		1120	=cut
		1121
		1122	sub list_logins {
		1123	my $dirs = aio_readdir $PLAYERDIR
		1124	or return [];
		1125
		1126	my @logins;
		1127
		1128	for my $login (@$dirs) {
		1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1130	aio_read $fh, 0, 512, my $buf, 0 or next;
		1131	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1132
		1133	utf8::decode $login;
		1134	push @logins, $login;
		1135	}
		1136
		1137	\@logins
		1138	}
		1139
		1140	=item $player->maps
		1141
		1142	Returns an arrayref of map paths that are private for this
		1143	player. May block.
		1144
		1145	=cut
		1146
		1147	sub maps($) {
		1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
		1152	my $files = aio_readdir playerdir $pl
		1153	or return;
		1154
		1155	my @paths;
		1156
		1157	for (@$files) {
		1158	utf8::decode $_;
		1159	next if /\.(?:pl|pst)$/;
		1160	next unless /^$PATH_SEP/o;
		1161
		1162	push @paths, cf::map::normalise "~$pl/$_";
		1163	}
		1164
		1165	\@paths
		1166	}
		1167
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1022		1169
1023	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1024		1171
1025	=cut	1172	=cut
1026		1173
1027	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1028	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1029		1176
1030	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1031		1178
1032	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
1033	}	1221	}
1034		1222
1035	=back	1223	=back
1036
1037		1224
1038	=head3 cf::map	1225	=head3 cf::map
1039		1226
1040	=over 4	1227	=over 4
1041		1228
…		…
1044	package cf::map;	1231	package cf::map;
1045		1232
1046	use Fcntl;	1233	use Fcntl;
1047	use Coro::AIO;	1234	use Coro::AIO;
1048		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1049	our $MAX_RESET = 7200;	1240	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1241	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1242
1054	sub generate_random_map {	1243	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1246	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
		1258	)
		1259	}
		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
1071	}	1388	}
1072		1389
1073	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1074	# all maps in C++...	1391	# all maps in C++...
1075	sub change_all_map_light {	1392	sub change_all_map_light {
1076	my ($change) = @_;	1393	my ($change) = @_;
1077		1394
1078	$_->change_map_light ($change) for values %cf::MAP;	1395	$_->change_map_light ($change)
		1396	for grep $_->outdoor, values %cf::MAP;
1079	}	1397	}
1080		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1081	sub try_load_header($) {	1407	sub load_header_from($) {
1082	my ($path) = @_;	1408	my ($self, $path) = @_;
1083		1409
1084	utf8::encode $path;	1410	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1086	or return;	1415	or return;
1087		1416
1088	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1089	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1090		1463
1091	$map->load_header ($path)	1464	$self->default_region (cf::region::find_by_path $self->{path})
1092	or return;	1465	unless $self->default_region;
1093		1466
1094	$map->{load_path} = $path;	1467	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1468	}
1099		1469
		1470	sub find;
1100	sub find_map {	1471	sub find {
1101	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1102		1473
1103	#warn "find_map<$path,$origin>\n";#d#	1474	$path = normalise $path, $origin && $origin->path;
1104		1475
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1476	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1477
1108	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1109	# do it the slow way	1479	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1480	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;	1481	or return;
1124		1482
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1483	$map->{last_save} = $cf::RUNTIME;
1135		1484
1136	$map->reset if $map->should_reset;	1485	$map->load_header
		1486	or return;
1137		1487
		1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
		1491	$map->reset;
		1492	undef $guard;
		1493	return find $path;
		1494	}
		1495
1138	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1139	}	1497	}
1140	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1141		1502
1142	sub load {	1503	sub load {
1143	my ($self) = @_;	1504	my ($self) = @_;
1144		1505
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1506	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		1507
1149	my $path = $self->{path};	1508	my $path = $self->{path};
1150		1509
		1510	{
		1511	my $guard = cf::lock_acquire "map_load:$path";
		1512
		1513	return if $self->in_memory != cf::MAP_SWAPPED;
		1514
		1515	$self->in_memory (cf::MAP_LOADING);
		1516
1151	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1152	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1523	or return;
1154		1524
		1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1526	if delete $self->{load_original};
		1527
1155	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1529	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1531	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1160	}	1533	}
1161	}	1534	}
1162		1535
		1536	Coro::cede;
1163	# now do the right thing for maps	1537	# now do the right thing for maps
1164	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1176	$self->activate;	1550	$self->activate;
1177	}	1551	}
1178		1552
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1554	}
1181		1555
1182	sub load_map_sync {	1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
		1590	}
		1591
		1592	sub find_sync {
1183	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1184		1594
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1595	cf::sync_job { find $path, $origin }
		1596	}
1186		1597
1187	cf::sync_job {	1598	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1599	my ($map) = @_;
1189	or return;	1600
		1601	cf::sync_job { $map->load };
		1602	}
		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
1190	$map->load;	1622	$map->load;
1191	$map	1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
1192	}	1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
1193	}	1632	}
1194		1633
1195	sub save {	1634	sub save {
1196	my ($self) = @_;	1635	my ($self) = @_;
1197		1636
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1638
1201	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1202		1640
1203	return unless $self->dirty;	1641	return unless $self->dirty;
1204		1642
		1643	my $save = $self->save_path; utf8::encode $save;
		1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1645
1205	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1206		1647
1207	return if $self->{deny_save};	1648	return if $self->{deny_save};
1208		1649
1209	warn "saving map ", $self->path;	1650	local $self->{last_access} = $self->last_access;#d#
		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
1210		1655
1211	if ($uniq) {	1656	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1659	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1661	}
1217	}	1662	}
1218		1663
1219	sub swap_out {	1664	sub swap_out {
1220	my ($self) = @_;	1665	my ($self) = @_;
		1666
		1667	# save first because save cedes
		1668	$self->save;
		1669
		1670	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1671
1222	return if $self->players;	1672	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1674	return if $self->{deny_save};
1225		1675
1226	$self->save;
1227	$self->clear;	1676	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1677	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1678	}
1230		1679
		1680	sub reset_at {
		1681	my ($self) = @_;
		1682
		1683	# TODO: safety, remove and allow resettable per-player maps
		1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1685	return 1e99 if $self->{deny_reset};
		1686
		1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1689
		1690	$time + $to
		1691	}
		1692
1231	sub should_reset {	1693	sub should_reset {
1232	my ($map) = @_;	1694	my ($self) = @_;
1233		1695
1234	# TODO: safety, remove and allow resettable per-player maps	1696	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1697	}
1243		1698
1244	sub reset {	1699	sub reset {
1245	my ($self) = @_;	1700	my ($self) = @_;
1246		1701
		1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1703
1247	return if $self->players;	1704	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1249		1706
1250	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1251		1708
1252	utf8::encode (my $save = $self->{path}->save_path);	1709	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1710
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
		1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1255		1722
1256	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1257		1724
		1725	$self->unlink_save;
1258	$self->clear;	1726	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1727	}
1262		1728
1263	sub customise_for {	1729	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1730
1266	if ($map->per_player) {	1731	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1732	my ($self) = @_;
1268	}
1269		1733
1270	$map	1734	delete $cf::MAP{$self->path};
1271	}
1272		1735
1273	sub emergency_save {	1736	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1737
1276	warn "enter emergency map save\n";	1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
		1740	$self->{deny_save} = 1;
		1741	$self->reset_timeout (1);
		1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1743
1278	cf::sync_job {	1744	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1745
1280	$_->save for values %cf::MAP;	1746	$self->reset; # polite request, might not happen
		1747	}
		1748
		1749	=item cf::map::unique_maps
		1750
		1751	Returns an arrayref of paths of all shared maps that have
		1752	instantiated unique items. May block.
		1753
		1754	=cut
		1755
		1756	sub unique_maps() {
		1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
		1759
		1760	my @paths;
		1761
		1762	for (@$files) {
		1763	utf8::decode $_;
		1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1281	};	1768	}
1282		1769
1283	warn "end emergency map save\n";	1770	\@paths
1284	}	1771	}
1285		1772
1286	package cf;	1773	package cf;
1287		1774
1288	=back	1775	=back
1289		1776
		1777	=head3 cf::object
		1778
		1779	=cut
		1780
		1781	package cf::object;
		1782
		1783	=over 4
		1784
		1785	=item $ob->inv_recursive
		1786
		1787	Returns the inventory of the object _and_ their inventories, recursively.
		1788
		1789	=cut
		1790
		1791	sub inv_recursive_;
		1792	sub inv_recursive_ {
		1793	map { $_, inv_recursive_ $_->inv } @_
		1794	}
		1795
		1796	sub inv_recursive {
		1797	inv_recursive_ inv $_[0]
		1798	}
		1799
		1800	package cf;
		1801
		1802	=back
1290		1803
1291	=head3 cf::object::player	1804	=head3 cf::object::player
1292		1805
1293	=over 4	1806	=over 4
1294		1807
…		…
1330	(ref $cf::CFG{"may_$access"}	1843	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1844	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1845	: $cf::CFG{"may_$access"})
1333	}	1846	}
1334		1847
		1848	=item $player_object->enter_link
		1849
		1850	Freezes the player and moves him/her to a special map (C<{link}>).
		1851
		1852	The player should be reasonably safe there for short amounts of time. You
		1853	I<MUST> call C<leave_link> as soon as possible, though.
		1854
		1855	Will never block.
		1856
		1857	=item $player_object->leave_link ($map, $x, $y)
		1858
		1859	Moves the player out of the special C<{link}> map onto the specified
		1860	map. If the map is not valid (or omitted), the player will be moved back
		1861	to the location he/she was before the call to C<enter_link>, or, if that
		1862	fails, to the emergency map position.
		1863
		1864	Might block.
		1865
		1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
		1877
1335	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1879	my ($self) = @_;
1337		1880
1338	return if $self->map == $LINK_MAP;	1881	$self->deactivate_recursive;
1339		1882
		1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1884
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1886	if $self->map;
1342		1887
1343	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1889	}
1346		1890
1347	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1349		1893
1350	my $link_pos = delete $self->{_link_pos};	1894	my $link_pos = delete $self->{_link_pos};
1351		1895
1352	unless ($map) {	1896	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1897	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1898	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1899	$map = cf::map::find $map;
1358		1900
1359	unless ($map) {	1901	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1902	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1903	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1904	or die "FATAL: cannot load emergency map\n";
1363	}	1905	}
1364	}	1906	}
1365		1907
1366	($x, $y) = (-1, -1)	1908	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1372		1914
1373	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1374		1917
		1918	return unless $self->contr->active;
1375	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1377	}	1923	}
1378		1924
		1925	cf::player->attach (
		1926	on_logout => sub {
		1927	my ($pl) = @_;
		1928
		1929	# abort map switching before logout
		1930	if ($pl->ob->{_link_pos}) {
		1931	cf::sync_job {
		1932	$pl->ob->leave_link
		1933	};
		1934	}
		1935	},
		1936	on_login => sub {
		1937	my ($pl) = @_;
		1938
		1939	# try to abort aborted map switching on player login :)
		1940	# should happen only on crashes
		1941	if ($pl->ob->{_link_pos}) {
		1942	$pl->ob->enter_link;
		1943	(async {
		1944	$pl->ob->reply (undef,
		1945	"There was an internal problem at your last logout, "
		1946	. "the server will try to bring you to your intended destination in a second.",
		1947	cf::NDI_RED);
		1948	# we need this sleep as the login has a concurrent enter_exit running
		1949	# and this sleep increases chances of the player not ending up in scorn
		1950	Coro::Timer::sleep 1;
		1951	$pl->ob->leave_link;
		1952	})->prio (2);
		1953	}
		1954	},
		1955	);
		1956
1379	=item $player_object->goto_map ($map, $x, $y)	1957	=item $player_object->goto ($path, $x, $y)
1380		1958
1381	=cut	1959	=cut
1382		1960
1383	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1385		1963
1386	$self->enter_link;	1964	$self->enter_link;
1387		1965
1388	(Coro::async {	1966	(async {
1389	$path = new cf::path $path;	1967	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1968	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1970	$map
		1971	} or
		1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1973
1397	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1975	})->prio (1);
1399	}	1976	}
1400		1977
…		…
1404		1981
1405	sub parse_random_map_params {	1982	sub parse_random_map_params {
1406	my ($spec) = @_;	1983	my ($spec) = @_;
1407		1984
1408	my $rmp = { # defaults	1985	my $rmp = { # defaults
1409	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1411	};	1990	};
1412		1991
1413	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1415		1994
…		…
1419	$rmp	1998	$rmp
1420	}	1999	}
1421		2000
1422	sub prepare_random_map {	2001	sub prepare_random_map {
1423	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2005
1425	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2008	# that depends on the exit object
1428		2009
1429	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1430		2011
1431	if ($exit->map) {	2012	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1436	}	2017	}
1437		2018
1438	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1439		2020
1440	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1442		2024
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1445		2029
1446	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2031	$exit->msg (undef);
1448	}	2032	}
1449	}	2033	}
…		…
1451	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1453		2037
1454	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
1455		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
		2050
1456	$self->enter_link;	2051	$self->enter_link;
1457		2052
1458	(Coro::async {	2053	(async {
		2054	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2055	unless (eval {
1460		2056	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		2057
1467	1;	2058	1;
1468	}) {	2059	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2064
1474	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2066	$self->leave_link;
1476	}	2067	}
1477	})->prio (1);	2068	})->prio (1);
…		…
1490		2081
1491	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1493		2084
1494	utf8::encode $text;	2085	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2087	}
1497		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1498		2101
1499	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1500		2103
1501	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1527	on_reply => sub {	2130	on_reply => sub {
1528	my ($ns, $msg) = @_;	2131	my ($ns, $msg) = @_;
1529		2132
1530	# this weird shuffling is so that direct followup queries	2133	# this weird shuffling is so that direct followup queries
1531	# get handled first	2134	# get handled first
1532	my $queue = delete $ns->{query_queue};	2135	my $queue = delete $ns->{query_queue}
		2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2137
1534	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2140
1536	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1537		2142
1538	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2144	if (@$queue) {
…		…
1543	}	2148	}
1544	}	2149	}
1545	},	2150	},
1546	);	2151	);
1547		2152
1548	=item $client->coro (\&cb)	2153	=item $client->async (\&cb)
1549		2154
1550	Create a new coroutine, running the specified callback. The coroutine will	2155	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2156	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2157	or loss of connection).
1553		2158
1554	=cut	2159	=cut
1555		2160
1556	sub cf::client::coro {	2161	sub cf::client::async {
1557	my ($self, $cb) = @_;	2162	my ($self, $cb) = @_;
1558		2163
1559	my $coro; $coro = async {	2164	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2165
1566	$coro->on_destroy (sub {	2166	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2167	delete $self->{_coro}{$coro+0};
1568	});	2168	});
1569		2169
…		…
1602		2202
1603	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1604		2204
1605	=pod	2205	=pod
1606		2206
1607	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1608		2208
1609	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1610	cf::object::player player	2210	cf::object::player player
1611	cf::player peaceful	2211	cf::player peaceful
1612	cf::map trigger	2212	cf::map trigger
…		…
1697	#############################################################################	2297	#############################################################################
1698		2298
1699	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1700		2300
1701	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1702	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1703	excludes objects.	2303	convert to/from binary).
1704		2304
1705	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2306	using it, it should be unique.
1707		2307
1708	=over 4	2308	=over 4
1709		2309
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
1717		2311
1718	Returns a single value from the database	2312	Returns a single value from the database.
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724		2313
1725	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1726		2315
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737		2317
1738	=cut	2318	=cut
1739		2319
1740	our $DB;	2320	our $DB;
1741		2321
1742	{	2322	sub db_init {
1743	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1744		2325
1745	sub db_load() {	2326	cf::sync_job {
1746	warn "loading database $path\n";#d# remove later	2327	eval {
1747	$DB = stat $path ? Storable::retrieve $path : { };	2328	$DB->set_flags (BDB::CHKSUM);
1748	}
1749		2329
1750	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1751		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1752	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1753	warn "saving database $path\n";#d# remove later	2333	};
1754	waitpid $pid, 0 if $pid;	2334	cf::cleanup "db_open(db): $@" if $@;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}	2335	};
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});	2336	}
		2337	}
1773		2338
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {	2339	sub db_get($$) {
1780	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1785	sub db_put($$;$) {	2350	sub db_put($$$) {
1786	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1787	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1788	} else {	2353	}
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793		2354
1794	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1795	prio => 10000,	2356
1796	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1797	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
1798	},	2387	}
1799	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
1800	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
1801		2470
1802	#############################################################################	2471	#############################################################################
1803	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
1804		2560
1805	sub cfg_load {	2561	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	2563	or return;
1808		2564
1809	local $/;	2565	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
		2567
		2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2569
		2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2572
		2573	if (exists $CFG{mlockall}) {
		2574	eval {
		2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2576	and die "WARNING: m(un)lockall failed: $!\n";
		2577	};
		2578	warn $@ if $@;
		2579	}
1811	}	2580	}
1812		2581
1813	sub main {	2582	sub main {
1814	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2586	(async {
1818	Event::one_event;	2587	Event::one_event;
1819	})->();	2588	})->prio (Coro::PRIO_MAX);
1820	};	2589	};
1821		2590
1822	cfg_load;	2591	cfg_load;
1823	db_load;	2592	db_init;
1824	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
1825	Event::loop;	2596	Event::loop;
1826	}	2597	}
1827		2598
1828	#############################################################################	2599	#############################################################################
1829	# initialisation	2600	# initialisation and cleanup
1830		2601
1831	sub perl_reload() {	2602	# install some emergency cleanup handlers
		2603	BEGIN {
		2604	for my $signal (qw(INT HUP TERM)) {
		2605	Event->signal (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	signal => $signal,
		2609	prio => 0,
		2610	cb => sub {
		2611	cf::cleanup "SIG$signal";
		2612	},
		2613	);
		2614	}
		2615	}
		2616
		2617	sub emergency_save() {
		2618	my $freeze_guard = cf::freeze_mainloop;
		2619
		2620	warn "enter emergency perl save\n";
		2621
		2622	cf::sync_job {
		2623	# use a peculiar iteration method to avoid tripping on perl
		2624	# refcount bugs in for. also avoids problems with players
		2625	# and maps saved/destroyed asynchronously.
		2626	warn "begin emergency player save\n";
		2627	for my $login (keys %cf::PLAYER) {
		2628	my $pl = $cf::PLAYER{$login} or next;
		2629	$pl->valid or next;
		2630	$pl->save;
		2631	}
		2632	warn "end emergency player save\n";
		2633
		2634	warn "begin emergency map save\n";
		2635	for my $path (keys %cf::MAP) {
		2636	my $map = $cf::MAP{$path} or next;
		2637	$map->valid or next;
		2638	$map->save;
		2639	}
		2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
		2645	};
		2646
		2647	warn "leave emergency perl save\n";
		2648	}
		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
		2657	sub do_reload_perl() {
1832	# can/must only be called in main	2658	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
1835	return;	2661	return;
1836	}	2662	}
1837		2663
1838	warn "reloading...";	2664	warn "reloading...";
1839		2665
1840	local $FREEZE = 1;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
1842		2672
1843	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
1844	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
1845		2677
1846	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2681	}
1850		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
1851	# cancel all extension coros	2694	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2696	%EXT_CORO = ();
1854		2697
1855	# unload all extensions	2698	warn "removing commands";
1856	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2706	warn "... unloading $pkg";
1858	unload_extension $_;	2707
		2708	if (my $cb = $pkg->can ("unload")) {
		2709	eval {
		2710	$cb->($pkg);
		2711	1
		2712	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2713	}
1860		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
1861	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2722
1865	warn "removing <$k>";	2723	warn "... unloading $k";
1866	delete $INC{$k};	2724	delete $INC{$k};
1867		2725
1868	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
1870		2728
…		…
1873	}	2731	}
1874		2732
1875	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
1876	}	2734	}
1877		2735
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2739
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
1891		2743
1892	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2745	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
1895		2747
1896	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
1897	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
1898	require cf;	2751	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2753
1901	# load config and database again	2754	warn "loading config and database again";
1902	cf::cfg_load;	2755	cf::cfg_load;
1903	cf::db_load;
1904		2756
1905	# load extensions
1906	warn "load extensions";	2757	warn "loading extensions";
1907	cf::load_extensions;	2758	cf::load_extensions;
1908		2759
1909	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
1910	warn "reattach";	2761	_global_reattach; # objects, sockets
1911	_global_reattach;	2762	warn "reattaching attachments to maps";
1912	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
1913		2766
1914	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
1915	warn $@;	2771	warn $@;
1916	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
1917	exit 1;	2773	exit 1;
1918	}	2774	};
1919		2775
1920	warn "reloaded successfully";	2776	warn "reloaded";
1921	};	2777	};
1922		2778
1923	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
1924		2780
1925	unless ($LINK_MAP) {	2781	sub reload_perl() {
1926	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
1927		2784
1928	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
1929	$LINK_MAP->height (41);	2786	reentrant => 0,
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
1938	cb => sub {	2789	cb => sub {
1939	$_[0]->w->cancel;	2790	do_reload_perl;
1940		2791	undef $RELOAD_WATCHER;
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});	2792	},
1959		2793	);
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	2794	}
1965		2795
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2796	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
1970		2798
1971	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
1975	}	2802	}
1976	};	2803	};
1977		2804
1978	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
1979		2829
1980	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
1982	prio => 0,	2833	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
1985	cb => sub {	2836	cb => sub {
1986	unless ($FREEZE) {	2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
1987	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
1988	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
1992		2860
1993	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2863
1996	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
1998	},	2875	},
1999	);	2876	);
2000		2877
		2878	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2002		2880	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2881	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2005	poll => 'r',	2883	poll => 'r',
2006	prio => 5,	2884	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2013	after => 0,	2886	cb => \&BDB::poll_cb,
2014	interval => 10,	2887	);
2015	cb => sub {	2888	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2889
2017	write_runtime	2890	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2924	};
2020	},	2925	}
2021	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
		2983
		2984	END { cf::emergency_save }
2022		2985
2023	1	2986	1
2024		2987

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