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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		194
135	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
157		213
158	=over 4	214	=over 4
159		215
160	=cut	216	=item dumpval $ref
161		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		240
164	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
165		242
166	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
167		244
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
176		246
177	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
178		248
179	=cut	249	=item cf::lock_wait $string
180		250
181	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
183	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
184	}	279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
185		320
186	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
187		322
188	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		333
199	sub sync_job(&) {	334	sub sync_job(&) {
200	my ($job) = @_;	335	my ($job) = @_;
201		336
202	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
203	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
205		342
206	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	344	# (but this is cancel-safe)
208	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
209		346
210	my $busy = 1;	347	my $busy = 1;
211	my @res;	348	my @res;
212		349
213	(Coro::async {	350	(async {
214	@res = eval { $job->() };	351	@res = eval { $job->() };
215	warn $@ if $@;	352	warn $@ if $@;
216	undef $busy;	353	undef $busy;
217	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
218		355
219	while ($busy) {	356	while ($busy) {
220	Coro::cede_notself;	357	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	358	}
		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
223		366
224	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
225	} else {	368	} else {
226	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
227		370
228	$job->()	371	$job->()
229	}	372	}
230	}	373	}
231		374
232	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
233		376
234	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
236		379
237	=cut	380	=cut
238		381
239	sub coro(&) {	382	sub async_ext(&) {
240	my $cb = shift;	383	my $cb = shift;
241		384
242	my $coro; $coro = async {	385	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		386
249	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
251	});	389	});
252	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
253		391
254	$coro	392	$coro
255	}	393	}
256		394
257	sub write_runtime {	395	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
259		404
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	406	or return;
262		407
		408	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	413	and return;
266		414
		415	# always fsync - this file is important
267	aio_fsync $fh	416	aio_fsync $fh
268	and return;	417	and return;
269		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
270	close $fh	422	close $fh
271	or return;	423	or return;
272		424
273	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
274	and return;	426	and return;
275		427
		428	warn "runtime file written.\n";
		429
276	1	430	1
277	}	431	}
278		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
279	=back	444	=back
280		445
281	=cut	446	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		447
403	#############################################################################	448	#############################################################################
404		449
405	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
406		451
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	578	our @CB_MAP = ();
534		579
535	my %attachment;	580	my %attachment;
536		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
537	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
539		590
540	use sort 'stable';	591	use sort 'stable';
541		592
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
576		627
577	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		632
582	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	634	my $pkg = shift @arg;
584		635
585	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
626	if (ref $_[0]) {	677	if (ref $_[0]) {
627	_object_attach @_;	678	_object_attach @_;
628	} else {	679	} else {
629	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
630	}	681	}
		682	_recalc_want;
631	};	683	};
632		684
633	# all those should be optimised	685	# all those should be optimised
634	sub cf::attachable::detach {	686	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
639	reattach ($obj);	691	reattach ($obj);
640	} else {	692	} else {
641	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
642	}	694	}
		695	_recalc_want;
643	};	696	};
644		697
645	sub cf::attachable::attached {	698	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
647		700
…		…
712	# object support	765	# object support
713		766
714	sub reattach {	767	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		772
718	my $registry = $obj->registry;	773	my $registry = $obj->registry;
719		774
720	@$registry = ();	775	@$registry = ();
721		776
…		…
768	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
769		824
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	829	close $fh;
775		830
776	if (@$objs) {	831	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	837	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
784	}	839	}
785	} else {	840	} else {
786	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
818	or return;	873	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
820	}	875	}
821		876
822	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	879	return ($data, $av);
825	}	880	}
826		881
827	#############################################################################	882	#############################################################################
828	# command handling &c	883	# command handling &c
…		…
853	=cut	908	=cut
854		909
855	sub register_extcmd {	910	sub register_extcmd {
856	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
857		912
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
862	}	914	}
863		915
864	cf::player->attach (	916	cf::player->attach (
865	on_command => sub {	917	on_command => sub {
866	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
879		931
880	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
881		933
882	if (ref $msg) {	934	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	938	}
887	}	939	}
888	} else {	940	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		943
892	cf::override;	944	cf::override;
893	},	945	},
894	);	946	);
895		947
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	948	sub load_extension {
903	my ($path) = @_;	949	my ($path) = @_;
904		950
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
906	my $base = $1;	952	my $base = $1;
907	my $pkg = $1;	953	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
910		956
911	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
912		958
913	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
914	or die "$path: $!";	960	or die "$path: $!";
915		961
916	my $source =	962	my $source =
917	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
920	. "\n};\n1";	966	. "\n};\n1";
921		967
922	eval $source	968	unless (eval $source) {
923	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
924	: "extension disabled.\n";	970	: "extension disabled.\n";
925		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
926	push @exts, $pkg;	972	warn $@;
927	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
928		974	exit 1;
929	# no strict 'refs';	975	}
930	# @{"$pkg\::ISA"} = ext::;	976	die $@;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	977	}
945		978
946	# remove commands	979	push @EXTS, $pkg;
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	980	}
971		981
972	sub load_extensions {	982	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	984	next unless -r $ext;
…		…
978	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
979	}	989	}
980	}	990	}
981		991
982	#############################################################################	992	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019		993
1020	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1021		995
1022	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1023		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1024	=head3 cf::player	1004	=head3 cf::player
1025		1005
1026	=over 4	1006	=over 4
1027		1007
1028	=item cf::player::exists $login	1008	=item cf::player::find $login
1029		1009
1030	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1031		1011
1032	=cut	1012	=cut
1033		1013
1034	sub cf::player::exists($) {	1014	sub playerdir($) {
1035	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1037	}	1017	}
1038		1018
		1019	sub path($) {
		1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1021
		1022	(playerdir $login) . "/playerdata"
		1023	}
		1024
		1025	sub find_active($) {
		1026	$cf::PLAYER{$_[0]}
		1027	and $cf::PLAYER{$_[0]}->active
		1028	and $cf::PLAYER{$_[0]}
		1029	}
		1030
		1031	sub exists($) {
		1032	my ($login) = @_;
		1033
		1034	$cf::PLAYER{$login}
		1035	or cf::sync_job { !aio_stat path $login }
		1036	}
		1037
		1038	sub find($) {
		1039	return $cf::PLAYER{$_[0]} || do {
		1040	my $login = $_[0];
		1041
		1042	my $guard = cf::lock_acquire "user_find:$login";
		1043
		1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
		1052	my $pl = load_pl path $login
		1053	or return;
		1054	$cf::PLAYER{$login} = $pl
		1055	}
		1056	}
		1057	}
		1058
		1059	sub save($) {
		1060	my ($pl) = @_;
		1061
		1062	return if $pl->{deny_save};
		1063
		1064	my $path = path $pl;
		1065	my $guard = cf::lock_acquire "user_save:$path";
		1066
		1067	return if $pl->{deny_save};
		1068
		1069	aio_mkdir playerdir $pl, 0770;
		1070	$pl->{last_save} = $cf::RUNTIME;
		1071
		1072	$pl->save_pl ($path);
		1073	Coro::cede;
		1074	}
		1075
		1076	sub new($) {
		1077	my ($login) = @_;
		1078
		1079	my $self = create;
		1080
		1081	$self->ob->name ($login);
		1082	$self->{deny_save} = 1;
		1083
		1084	$cf::PLAYER{$login} = $self;
		1085
		1086	$self
		1087	}
		1088
		1089	=item $pl->quit_character
		1090
		1091	Nukes the player without looking back. If logged in, the connection will
		1092	be destroyed. May block for a long time.
		1093
		1094	=cut
		1095
		1096	sub quit_character {
		1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
		1100
		1101	$pl->{deny_save} = 1;
		1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1103
		1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1105	$pl->deactivate;
		1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1107	$pl->ns->destroy if $pl->ns;
		1108
		1109	my $path = playerdir $pl;
		1110	my $temp = "$path~$cf::RUNTIME~deleting~";
		1111	aio_rename $path, $temp;
		1112	delete $cf::PLAYER{$pl->ob->name};
		1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
		1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
		1135	}
		1136
		1137	=item cf::player::list_logins
		1138
		1139	Returns am arrayref of all valid playernames in the system, can take a
		1140	while and may block, so not sync_job-capable, ever.
		1141
		1142	=cut
		1143
		1144	sub list_logins {
		1145	my $dirs = aio_readdir $PLAYERDIR
		1146	or return [];
		1147
		1148	my @logins;
		1149
		1150	for my $login (@$dirs) {
		1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1152	aio_read $fh, 0, 512, my $buf, 0 or next;
		1153	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1154
		1155	utf8::decode $login;
		1156	push @logins, $login;
		1157	}
		1158
		1159	\@logins
		1160	}
		1161
		1162	=item $player->maps
		1163
		1164	Returns an arrayref of map paths that are private for this
		1165	player. May block.
		1166
		1167	=cut
		1168
		1169	sub maps($) {
		1170	my ($pl) = @_;
		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
		1174	my $files = aio_readdir playerdir $pl
		1175	or return;
		1176
		1177	my @paths;
		1178
		1179	for (@$files) {
		1180	utf8::decode $_;
		1181	next if /\.(?:pl|pst)$/;
		1182	next unless /^$PATH_SEP/o;
		1183
		1184	push @paths, cf::map::normalise "~$pl/$_";
		1185	}
		1186
		1187	\@paths
		1188	}
		1189
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1040		1191
1041	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1042		1193
1043	=cut	1194	=cut
1044		1195
1045	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1046	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1047		1198
1048	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1049		1200
1050	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
1051	}	1243	}
1052		1244
1053	=back	1245	=back
1054
1055		1246
1056	=head3 cf::map	1247	=head3 cf::map
1057		1248
1058	=over 4	1249	=over 4
1059		1250
…		…
1062	package cf::map;	1253	package cf::map;
1063		1254
1064	use Fcntl;	1255	use Fcntl;
1065	use Coro::AIO;	1256	use Coro::AIO;
1066		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1067	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1069		1264
1070	sub generate_random_map {	1265	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1268	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1277	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
		1280	)
		1281	}
		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
		1291	sub register {
		1292	my (undef, $regex, $prio) = @_;
		1293	my $pkg = caller;
		1294
		1295	no strict;
		1296	push @{"$pkg\::ISA"}, __PACKAGE__;
		1297
		1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1299	}
		1300
		1301	# also paths starting with '/'
		1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310	local $self->{deny_save};
		1311	local $self->{deny_reset};
		1312
		1313	$self->SUPER::thawer_merge ($merge);
		1314	}
		1315
		1316	sub normalise {
		1317	my ($path, $base) = @_;
		1318
		1319	$path = "$path"; # make sure its a string
		1320
		1321	$path =~ s/\.map$//;
		1322
		1323	# map plan:
		1324	#
		1325	# /! non-realised random map exit (special hack!)
		1326	# {... are special paths that are not being touched
		1327	# ?xxx/... are special absolute paths
		1328	# ?random/... random maps
		1329	# /... normal maps
		1330	# ~user/... per-player map of a specific user
		1331
		1332	$path =~ s/$PATH_SEP/\//go;
		1333
		1334	# treat it as relative path if it starts with
		1335	# something that looks reasonable
		1336	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1337	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1338
		1339	$base =~ s{[^/]+/?$}{};
		1340	$path = "$base/$path";
		1341	}
		1342
		1343	for ($path) {
		1344	redo if s{//}{/};
		1345	redo if s{/\.?/}{/};
		1346	redo if s{/[^/]+/\.\./}{/};
		1347	}
		1348
		1349	$path
		1350	}
		1351
		1352	sub new_from_path {
		1353	my (undef, $path, $base) = @_;
		1354
		1355	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1356
		1357	$path = normalise $path, $base;
		1358
		1359	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1360	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1361	my $self = bless cf::map::new, $pkg;
		1362	$self->{path} = $path; $self->path ($path);
		1363	$self->init; # pass $1 etc.
		1364	return $self;
		1365	}
		1366	}
		1367
		1368	Carp::carp "unable to resolve path '$path' (base '$base').";
		1369	()
		1370	}
		1371
		1372	sub init {
		1373	my ($self) = @_;
		1374
		1375	$self
		1376	}
		1377
		1378	sub as_string {
		1379	my ($self) = @_;
		1380
		1381	"$self->{path}"
		1382	}
		1383
		1384	# the displayed name, this is a one way mapping
		1385	sub visible_name {
		1386	&as_string
		1387	}
		1388
		1389	# the original (read-only) location
		1390	sub load_path {
		1391	my ($self) = @_;
		1392
		1393	"$MAPDIR/$self->{path}.map"
		1394	}
		1395
		1396	# the temporary/swap location
		1397	sub save_path {
		1398	my ($self) = @_;
		1399
		1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1401	"$TMPDIR/$path.map"
		1402	}
		1403
		1404	# the unique path, undef == no special unique path
		1405	sub uniq_path {
		1406	my ($self) = @_;
		1407
		1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1409	"$UNIQUEDIR/$path"
1087	}	1410	}
1088		1411
1089	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1090	# all maps in C++...	1413	# all maps in C++...
1091	sub change_all_map_light {	1414	sub change_all_map_light {
1092	my ($change) = @_;	1415	my ($change) = @_;
1093		1416
1094	$_->change_map_light ($change) for values %cf::MAP;	1417	$_->change_map_light ($change)
		1418	for grep $_->outdoor, values %cf::MAP;
1095	}	1419	}
1096		1420
		1421	sub unlink_save {
		1422	my ($self) = @_;
		1423
		1424	utf8::encode (my $save = $self->save_path);
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1427	}
		1428
1097	sub try_load_header($) {	1429	sub load_header_from($) {
1098	my ($path) = @_;	1430	my ($self, $path) = @_;
1099		1431
1100	utf8::encode $path;	1432	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1433	#aio_open $path, O_RDONLY, 0
		1434	# or return;
		1435
		1436	$self->_load_header ($path)
1102	or return;	1437	or return;
1103		1438
1104	my $map = cf::map::new	1439	$self->{load_path} = $path;
		1440
		1441	1
		1442	}
		1443
		1444	sub load_header_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->load_header_from ($self->load_path)
		1448	}
		1449
		1450	sub load_header_temp {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->save_path)
		1454	}
		1455
		1456	sub prepare_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->last_access ((delete $self->{last_access})
		1460	|| $cf::RUNTIME); #d#
		1461	# safety
		1462	$self->{instantiate_time} = $cf::RUNTIME
		1463	if $self->{instantiate_time} > $cf::RUNTIME;
		1464	}
		1465
		1466	sub prepare_orig {
		1467	my ($self) = @_;
		1468
		1469	$self->{load_original} = 1;
		1470	$self->{instantiate_time} = $cf::RUNTIME;
		1471	$self->last_access ($cf::RUNTIME);
		1472	$self->instantiate;
		1473	}
		1474
		1475	sub load_header {
		1476	my ($self) = @_;
		1477
		1478	if ($self->load_header_temp) {
		1479	$self->prepare_temp;
		1480	} else {
		1481	$self->load_header_orig
1105	or return;	1482	or return;
		1483	$self->prepare_orig;
		1484	}
1106		1485
1107	$map->load_header ($path)	1486	$self->default_region (cf::region::find_by_path $self->{path})
1108	or return;	1487	unless $self->default_region;
1109		1488
1110	$map->{load_path} = $path;	1489	1
1111
1112	$map
1113	}	1490	}
1114		1491
		1492	sub find;
1115	sub find_map {	1493	sub find {
1116	my ($path, $origin) = @_;	1494	my ($path, $origin) = @_;
1117		1495
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1496	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1497
		1498	cf::lock_wait "map_find:$path";
		1499
1123	$cf::MAP{$key} || do {	1500	$cf::MAP{$path} || do {
1124	# do it the slow way	1501	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1502	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1503	or return;
1139		1504
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1505	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1506
1154	if ($map->should_reset) {	1507	$map->load_header
		1508	or return;
		1509
		1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1511	# doing this can freeze the server in a sync job, obviously
		1512	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1513	$map->reset;
1156	$map = find_map $path;	1514	undef $guard;
		1515	return find $path;
1157	}	1516	}
1158		1517
1159	$cf::MAP{$key} = $map	1518	$cf::MAP{$path} = $map
1160	}	1519	}
1161	}	1520	}
		1521
		1522	sub pre_load { }
		1523	sub post_load { }
1162		1524
1163	sub load {	1525	sub load {
1164	my ($self) = @_;	1526	my ($self) = @_;
1165		1527
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1528	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1529
1170	my $path = $self->{path};	1530	my $path = $self->{path};
1171		1531
		1532	{
		1533	my $guard = cf::lock_acquire "map_load:$path";
		1534
		1535	return if $self->in_memory != cf::MAP_SWAPPED;
		1536
		1537	$self->in_memory (cf::MAP_LOADING);
		1538
1172	$self->alloc;	1539	$self->alloc;
		1540
		1541	$self->pre_load;
		1542	Coro::cede;
		1543
1173	$self->load_objects ($self->{load_path}, 1)	1544	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1545	or return;
1175		1546
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1548	if delete $self->{load_original};
1178		1549
1179	if (my $uniq = $path->uniq_path) {	1550	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1551	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1552	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1553	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1554	$self->_load_objects ($uniq, 0);
1184	}	1555	}
1185	}	1556	}
1186		1557
		1558	Coro::cede;
1187	# now do the right thing for maps	1559	# now do the right thing for maps
1188	$self->link_multipart_objects;	1560	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1562	unless $self->difficulty;
		1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1200	$self->activate;	1572	$self->activate;
1201	}	1573	}
1202		1574
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1575	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1576	}
1205		1577
1206	sub load_map_sync {	1578	$self->post_load;
		1579	}
		1580
		1581	sub customise_for {
		1582	my ($self, $ob) = @_;
		1583
		1584	return find "~" . $ob->name . "/" . $self->{path}
		1585	if $self->per_player;
		1586
		1587	$self
		1588	}
		1589
		1590	# find and load all maps in the 3x3 area around a map
		1591	sub load_diag {
		1592	my ($map) = @_;
		1593
		1594	my @diag; # diagonal neighbours
		1595
		1596	for (0 .. 3) {
		1597	my $neigh = $map->tile_path ($_)
		1598	or next;
		1599	$neigh = find $neigh, $map
		1600	or next;
		1601	$neigh->load;
		1602
		1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1605	}
		1606
		1607	for (@diag) {
		1608	my $neigh = find @$_
		1609	or next;
		1610	$neigh->load;
		1611	}
		1612	}
		1613
		1614	sub find_sync {
1207	my ($path, $origin) = @_;	1615	my ($path, $origin) = @_;
1208		1616
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1617	cf::sync_job { find $path, $origin }
		1618	}
1210		1619
1211	cf::sync_job {	1620	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1621	my ($map) = @_;
1213	or return;	1622
		1623	cf::sync_job { $map->load };
		1624	}
		1625
		1626	our %MAP_PREFETCH;
		1627	our $MAP_PREFETCHER = undef;
		1628
		1629	sub find_async {
		1630	my ($path, $origin) = @_;
		1631
		1632	$path = normalise $path, $origin && $origin->{path};
		1633
		1634	if (my $map = $cf::MAP{$path}) {
		1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1636	}
		1637
		1638	undef $MAP_PREFETCH{$path};
		1639	$MAP_PREFETCHER ||= cf::async {
		1640	while (%MAP_PREFETCH) {
		1641	for my $path (keys %MAP_PREFETCH) {
		1642	my $map = find $path
		1643	or next;
1214	$map->load;	1644	$map->load;
1215	$map	1645
		1646	delete $MAP_PREFETCH{$path};
		1647	}
		1648	}
		1649	undef $MAP_PREFETCHER;
1216	}	1650	};
		1651	$MAP_PREFETCHER->prio (6);
		1652
		1653	()
1217	}	1654	}
1218		1655
1219	sub save {	1656	sub save {
1220	my ($self) = @_;	1657	my ($self) = @_;
1221		1658
		1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1660
1222	$self->{last_save} = $cf::RUNTIME;	1661	$self->{last_save} = $cf::RUNTIME;
1223		1662
1224	return unless $self->dirty;	1663	return unless $self->dirty;
1225		1664
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1665	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1666	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1667
1229	$self->{load_path} = $save;	1668	$self->{load_path} = $save;
1230		1669
1231	return if $self->{deny_save};	1670	return if $self->{deny_save};
1232		1671
		1672	local $self->{last_access} = $self->last_access;#d#
		1673
		1674	cf::async {
		1675	$_->contr->save for $self->players;
		1676	};
		1677
1233	if ($uniq) {	1678	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1681	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1683	}
1239	}	1684	}
1240		1685
1241	sub swap_out {	1686	sub swap_out {
1242	my ($self) = @_;	1687	my ($self) = @_;
		1688
		1689	# save first because save cedes
		1690	$self->save;
		1691
		1692	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1693
1244	return if $self->players;	1694	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1696	return if $self->{deny_save};
1247		1697
1248	$self->save;
1249	$self->clear;	1698	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1699	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1700	}
1252		1701
1253	sub reset_at {	1702	sub reset_at {
1254	my ($self) = @_;	1703	my ($self) = @_;
1255		1704
1256	# TODO: safety, remove and allow resettable per-player maps	1705	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};	1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1258	return 1e99 if $self->{deny_reset};	1707	return 1e99 if $self->{deny_reset};
1259		1708
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1711
…		…
1267	my ($self) = @_;	1716	my ($self) = @_;
1268		1717
1269	$self->reset_at <= $cf::RUNTIME	1718	$self->reset_at <= $cf::RUNTIME
1270	}	1719	}
1271		1720
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1721	sub reset {
1294	my ($self) = @_;	1722	my ($self) = @_;
1295		1723
		1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1725
1296	return if $self->players;	1726	return if $self->players;
1297	return if $self->{path}{user_rel};#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1298		1728
1299	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;
		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
1300		1740
1301	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
		1742
		1743	$self->clear;
1302		1744
1303	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1304		1746
1305	$self->unlink_save;	1747	$self->unlink_save;
1306	$self->destroy;	1748	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	1751	my $nuke_counter = "aaaa";
1310		1752
1311	sub nuke {	1753	sub nuke {
1312	my ($self) = @_;	1754	my ($self) = @_;
1313		1755
		1756	delete $cf::MAP{$self->path};
		1757
		1758	$self->unlink_save;
		1759
		1760	bless $self, "cf::map";
		1761	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	1762	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	1763	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1765
		1766	$cf::MAP{$self->path} = $self;
		1767
1317	$self->reset; # polite request, might not happen	1768	$self->reset; # polite request, might not happen
1318	}	1769	}
1319		1770
1320	sub customise_for {	1771	=item cf::map::unique_maps
1321	my ($map, $ob) = @_;
1322		1772
1323	if ($map->per_player) {	1773	Returns an arrayref of paths of all shared maps that have
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1774	instantiated unique items. May block.
1325	}
1326		1775
1327	$map	1776	=cut
1328	}
1329		1777
1330	sub emergency_save {	1778	sub unique_maps() {
1331	local $cf::FREEZE = 1;	1779	my $files = aio_readdir $UNIQUEDIR
		1780	or return;
1332		1781
1333	warn "enter emergency map save\n";	1782	my @paths;
1334		1783
1335	cf::sync_job {	1784	for (@$files) {
1336	warn "begin emergency map save\n";	1785	utf8::decode $_;
1337	$_->save for values %cf::MAP;	1786	next if /\.pst$/;
		1787	next unless /^$PATH_SEP/o;
		1788
		1789	push @paths, cf::map::normalise $_;
1338	};	1790	}
1339		1791
1340	warn "end emergency map save\n";	1792	\@paths
1341	}	1793	}
1342		1794
1343	package cf;	1795	package cf;
1344		1796
1345	=back	1797	=back
1346		1798
		1799	=head3 cf::object
		1800
		1801	=cut
		1802
		1803	package cf::object;
		1804
		1805	=over 4
		1806
		1807	=item $ob->inv_recursive
		1808
		1809	Returns the inventory of the object _and_ their inventories, recursively.
		1810
		1811	=cut
		1812
		1813	sub inv_recursive_;
		1814	sub inv_recursive_ {
		1815	map { $_, inv_recursive_ $_->inv } @_
		1816	}
		1817
		1818	sub inv_recursive {
		1819	inv_recursive_ inv $_[0]
		1820	}
		1821
		1822	package cf;
		1823
		1824	=back
1347		1825
1348	=head3 cf::object::player	1826	=head3 cf::object::player
1349		1827
1350	=over 4	1828	=over 4
1351		1829
…		…
1391		1869
1392	=item $player_object->enter_link	1870	=item $player_object->enter_link
1393		1871
1394	Freezes the player and moves him/her to a special map (C<{link}>).	1872	Freezes the player and moves him/her to a special map (C<{link}>).
1395		1873
1396	The player should be reaosnably safe there for short amounts of time. You	1874	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	1875	I<MUST> call C<leave_link> as soon as possible, though.
1398		1876
		1877	Will never block.
		1878
1399	=item $player_object->leave_link ($map, $x, $y)	1879	=item $player_object->leave_link ($map, $x, $y)
1400		1880
1401	Moves the player out of the specila link map onto the given map. If the	1881	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	1882	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	1883	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	1884	fails, to the emergency map position.
1405		1885
1406	Might block.	1886	Might block.
1407		1887
1408	=cut	1888	=cut
		1889
		1890	sub link_map {
		1891	unless ($LINK_MAP) {
		1892	$LINK_MAP = cf::map::find "{link}"
		1893	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1894	$LINK_MAP->load;
		1895	}
		1896
		1897	$LINK_MAP
		1898	}
1409		1899
1410	sub cf::object::player::enter_link {	1900	sub cf::object::player::enter_link {
1411	my ($self) = @_;	1901	my ($self) = @_;
1412		1902
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
		1904
		1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1906
		1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1908	if $self->map && $self->map->{path} ne "{link}";
		1909
		1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	1911	}
1421		1912
1422	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1424		1917
1425	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1426		1919
1427	unless ($map) {	1920	unless ($map) {
1428	# restore original map position	1921	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	1922	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	1923	$map = cf::map::find $map;
1431		1924
1432	unless ($map) {	1925	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	1926	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	1927	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	1928	or die "FATAL: cannot load emergency map\n";
1436	}	1929	}
1437	}	1930	}
1438		1931
1439	($x, $y) = (-1, -1)	1932	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	1935	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	1936	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	1937	if $x <=0 && $y <= 0;
1445		1938
1446	$map->load;	1939	$map->load;
		1940	$map->load_diag;
1447		1941
		1942	return unless $self->contr->active;
1448	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1450	}	1947	}
1451		1948
1452	=item $player_object->goto_map ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1453		1950
1454	=cut	1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
1455		1955
		1956	=cut
		1957
		1958	our $GOTOGEN;
		1959
1456	sub cf::object::player::goto_map {	1960	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		1965
1459	$self->enter_link;	1966	$self->enter_link;
1460		1967
1461	(Coro::async {	1968	(async {
1462	$path = new cf::path $path;	1969	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
1466		1974	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	1975	} else {
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
1471		1978
		1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
		1985	}
		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1473	})->prio (1);	1991	})->prio (1);
1474	}	1992	}
1475		1993
1476	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1477		1995
…		…
1479		1997
1480	sub parse_random_map_params {	1998	sub parse_random_map_params {
1481	my ($spec) = @_;	1999	my ($spec) = @_;
1482		2000
1483	my $rmp = { # defaults	2001	my $rmp = { # defaults
1484	xsize => 10,	2002	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2003	ysize => (cf::rndm 15, 40),
		2004	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2005	#layout => string,
1486	};	2006	};
1487		2007
1488	for (split /\n/, $spec) {	2008	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2009	my ($k, $v) = split /\s+/, $_, 2;
1490		2010
…		…
1494	$rmp	2014	$rmp
1495	}	2015	}
1496		2016
1497	sub prepare_random_map {	2017	sub prepare_random_map {
1498	my ($exit) = @_;	2018	my ($exit) = @_;
		2019
		2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2021
1500	# all this does is basically replace the /! path by	2022	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2023	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2024	# that depends on the exit object
1503		2025
1504	my $rmp = parse_random_map_params $exit->msg;	2026	my $rmp = parse_random_map_params $exit->msg;
1505		2027
1506	if ($exit->map) {	2028	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2029	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2030	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2031	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2032	$rmp->{origin_y} = $exit->y;
1511	}	2033	}
1512		2034
1513	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1514		2036
1515	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
		2039	my $meta = "$RANDOMDIR/$md5.meta";
1517		2040
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
		2043	undef $fh;
		2044	aio_rename "$meta~", $meta;
1520		2045
1521	$exit->slaying ("?random/$md5");	2046	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2047	$exit->msg (undef);
1523	}	2048	}
1524	}	2049	}
…		…
1526	sub cf::object::player::enter_exit {	2051	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2052	my ($self, $exit) = @_;
1528		2053
1529	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
1530		2055
		2056	if ($exit->slaying eq "/!") {
		2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
		2060	cf::sync_job { prepare_random_map $exit };
		2061	}
		2062
		2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2064	my $hp = $exit->stats->hp;
		2065	my $sp = $exit->stats->sp;
		2066
1531	$self->enter_link;	2067	$self->enter_link;
1532		2068
1533	(Coro::async {	2069	(async {
		2070	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2071	unless (eval {
1535		2072	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2073
1542	1;	2074	1;
1543	}) {	2075	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2078	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2080
1549	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2082	$self->leave_link;
1551	}	2083	}
1552	})->prio (1);	2084	})->prio (1);
…		…
1565		2097
1566	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1568		2100
1569	utf8::encode $text;	2101	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2103	}
1572		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1573		2117
1574	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1575		2119
1576	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1602	on_reply => sub {	2146	on_reply => sub {
1603	my ($ns, $msg) = @_;	2147	my ($ns, $msg) = @_;
1604		2148
1605	# this weird shuffling is so that direct followup queries	2149	# this weird shuffling is so that direct followup queries
1606	# get handled first	2150	# get handled first
1607	my $queue = delete $ns->{query_queue};	2151	my $queue = delete $ns->{query_queue}
		2152	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2153
1609	(shift @$queue)->[1]->($msg);	2154	(shift @$queue)->[1]->($msg);
		2155	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2156
1611	push @{ $ns->{query_queue} }, @$queue;	2157	push @{ $ns->{query_queue} }, @$queue;
1612		2158
1613	if (@{ $ns->{query_queue} } == @$queue) {	2159	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2160	if (@$queue) {
…		…
1618	}	2164	}
1619	}	2165	}
1620	},	2166	},
1621	);	2167	);
1622		2168
1623	=item $client->coro (\&cb)	2169	=item $client->async (\&cb)
1624		2170
1625	Create a new coroutine, running the specified callback. The coroutine will	2171	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2172	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2173	or loss of connection).
1628		2174
1629	=cut	2175	=cut
1630		2176
1631	sub cf::client::coro {	2177	sub cf::client::async {
1632	my ($self, $cb) = @_;	2178	my ($self, $cb) = @_;
1633		2179
1634	my $coro; $coro = async {	2180	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2181
1641	$coro->on_destroy (sub {	2182	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2183	delete $self->{_coro}{$coro+0};
1643	});	2184	});
1644		2185
…		…
1677		2218
1678	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
1679		2220
1680	=pod	2221	=pod
1681		2222
1682	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
1683		2224
1684	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
1685	cf::object::player player	2226	cf::object::player player
1686	cf::player peaceful	2227	cf::player peaceful
1687	cf::map trigger	2228	cf::map trigger
…		…
1772	#############################################################################	2313	#############################################################################
1773		2314
1774	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
1775		2316
1776	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
1777	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1778	excludes objects.	2319	convert to/from binary).
1779		2320
1780	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
1781	using it, it should be unique.	2322	using it, it should be unique.
1782		2323
1783	=over 4	2324	=over 4
1784		2325
1785	=item $hashref = cf::db_get $family
1786
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
1792		2327
1793	Returns a single value from the database	2328	Returns a single value from the database.
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799		2329
1800	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
1801		2331
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812		2333
1813	=cut	2334	=cut
1814		2335
1815	our $DB;	2336	our $DB;
1816		2337
1817	{	2338	sub db_init {
1818	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
1819		2341
1820	sub db_load() {	2342	cf::sync_job {
1821	warn "loading database $path\n";#d# remove later	2343	eval {
1822	$DB = stat $path ? Storable::retrieve $path : { };	2344	$DB->set_flags (BDB::CHKSUM);
1823	}
1824		2345
1825	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1826		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1827	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
1828	warn "saving database $path\n";#d# remove later	2349	};
1829	waitpid $pid, 0 if $pid;	2350	cf::cleanup "db_open(db): $@" if $@;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}	2351	};
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	2352	}
		2353	}
1848		2354
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {	2355	sub db_get($$) {
1855	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
1860	sub db_put($$;$) {	2366	sub db_put($$$) {
1861	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
1862	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1863	} else {	2369	}
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868		2370
1869	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
1870	prio => 10000,	2372
1871	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
1872	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
1873	},	2403	}
1874	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
1875	}	2483	}
1876		2484
1877	#############################################################################	2485	#############################################################################
1878	# the server's main()	2486	# the server's init and main functions
		2487
		2488	sub load_facedata($) {
		2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
		2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	#reload_archetypes;#d#
		2566	reload_archetypes;
		2567	reload_treasures;
		2568
		2569	warn "finished reloading resource files\n";
		2570	}
		2571
		2572	sub init {
		2573	reload_resources;
		2574	}
1879		2575
1880	sub cfg_load {	2576	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2577	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2578	or return;
1883		2579
1884	local $/;	2580	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2581	*CFG = YAML::Syck::Load <$fh>;
		2582
		2583	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2584
		2585	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2586	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2587
		2588	if (exists $CFG{mlockall}) {
		2589	eval {
		2590	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2591	and die "WARNING: m(un)lockall failed: $!\n";
		2592	};
		2593	warn $@ if $@;
		2594	}
1886	}	2595	}
1887		2596
1888	sub main {	2597	sub main {
1889	# we must not ever block the main coroutine	2598	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2599	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2600	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2601	(async {
1893	Event::one_event;	2602	Event::one_event;
1894	})->();	2603	})->prio (Coro::PRIO_MAX);
1895	};	2604	};
1896		2605
1897	cfg_load;	2606	cfg_load;
1898	db_load;	2607	db_init;
1899	load_extensions;	2608	load_extensions;
		2609
		2610	$TICK_WATCHER->start;
1900	Event::loop;	2611	Event::loop;
1901	}	2612	}
1902		2613
1903	#############################################################################	2614	#############################################################################
1904	# initialisation	2615	# initialisation and cleanup
1905		2616
		2617	# install some emergency cleanup handlers
		2618	BEGIN {
		2619	for my $signal (qw(INT HUP TERM)) {
		2620	Event->signal (
		2621	reentrant => 0,
		2622	data => WF_AUTOCANCEL,
		2623	signal => $signal,
		2624	prio => 0,
		2625	cb => sub {
		2626	cf::cleanup "SIG$signal";
		2627	},
		2628	);
		2629	}
		2630	}
		2631
		2632	sub emergency_save() {
		2633	my $freeze_guard = cf::freeze_mainloop;
		2634
		2635	warn "enter emergency perl save\n";
		2636
		2637	cf::sync_job {
		2638	# use a peculiar iteration method to avoid tripping on perl
		2639	# refcount bugs in for. also avoids problems with players
		2640	# and maps saved/destroyed asynchronously.
		2641	warn "begin emergency player save\n";
		2642	for my $login (keys %cf::PLAYER) {
		2643	my $pl = $cf::PLAYER{$login} or next;
		2644	$pl->valid or next;
		2645	$pl->save;
		2646	}
		2647	warn "end emergency player save\n";
		2648
		2649	warn "begin emergency map save\n";
		2650	for my $path (keys %cf::MAP) {
		2651	my $map = $cf::MAP{$path} or next;
		2652	$map->valid or next;
		2653	$map->save;
		2654	}
		2655	warn "end emergency map save\n";
		2656
		2657	warn "begin emergency database checkpoint\n";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659	warn "end emergency database checkpoint\n";
		2660	};
		2661
		2662	warn "leave emergency perl save\n";
		2663	}
		2664
		2665	sub post_cleanup {
		2666	my ($make_core) = @_;
		2667
		2668	warn Carp::longmess "post_cleanup backtrace"
		2669	if $make_core;
		2670	}
		2671
1906	sub reload() {	2672	sub do_reload_perl() {
1907	# can/must only be called in main	2673	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2674	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2675	warn "can only reload from main coroutine";
1910	return;	2676	return;
1911	}	2677	}
1912		2678
1913	warn "reloading...";	2679	warn "reloading...";
1914		2680
1915	local $FREEZE = 1;	2681	warn "entering sync_job";
		2682
		2683	cf::sync_job {
		2684	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2685	cf::emergency_save;
		2686	cf::write_runtime; # external watchdog should not bark
1917		2687
1918	eval {	2688	warn "syncing database to disk";
		2689	BDB::db_env_txn_checkpoint $DB_ENV;
		2690
1919	# if anything goes wrong in here, we should simply crash as we already saved	2691	# if anything goes wrong in here, we should simply crash as we already saved
1920		2692
1921	# cancel all watchers	2693	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2694	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2695	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2696	}
1925		2697
		2698	warn "flushing outstanding aio requests";
		2699	for (;;) {
		2700	BDB::flush;
		2701	IO::AIO::flush;
		2702	Coro::cede;
		2703	last unless IO::AIO::nreqs || BDB::nreqs;
		2704	warn "iterate...";
		2705	}
		2706
		2707	++$RELOAD;
		2708
1926	# cancel all extension coros	2709	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2710	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2711	%EXT_CORO = ();
1929		2712
1930	# unload all extensions	2713	warn "removing commands";
1931	for (@exts) {	2714	%COMMAND = ();
		2715
		2716	warn "removing ext commands";
		2717	%EXTCMD = ();
		2718
		2719	warn "unloading/nuking all extensions";
		2720	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2721	warn "... unloading $pkg";
1933	unload_extension $_;	2722
		2723	if (my $cb = $pkg->can ("unload")) {
		2724	eval {
		2725	$cb->($pkg);
		2726	1
		2727	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2728	}
1935		2729
		2730	warn "... nuking $pkg";
		2731	Symbol::delete_package $pkg;
		2732	}
		2733
1936	# unload all modules loaded from $LIBDIR	2734	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2735	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2736	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2737
1940	warn "removing <$k>";	2738	warn "... unloading $k";
1941	delete $INC{$k};	2739	delete $INC{$k};
1942		2740
1943	$k =~ s/\.pm$//;	2741	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	2742	$k =~ s/\//::/g;
1945		2743
…		…
1948	}	2746	}
1949		2747
1950	Symbol::delete_package $k;	2748	Symbol::delete_package $k;
1951	}	2749	}
1952		2750
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	2751	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	2752	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		2754
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	2755	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	2756	delete $INC{"cf.pm"};
		2757	delete $INC{"cf/pod.pm"};
1966		2758
1967	# don't, removes xs symbols, too,	2759	# don't, removes xs symbols, too,
1968	# and global variables created in xs	2760	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	2761	#Symbol::delete_package __PACKAGE__;
1970		2762
1971	# reload cf.pm	2763	warn "unload completed, starting to reload now";
		2764
1972	warn "reloading cf.pm";	2765	warn "reloading cf.pm";
1973	require cf;	2766	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		2768
1976	# load config and database again	2769	warn "loading config and database again";
1977	cf::cfg_load;	2770	cf::cfg_load;
1978	cf::db_load;
1979		2771
1980	# load extensions
1981	warn "load extensions";	2772	warn "loading extensions";
1982	cf::load_extensions;	2773	cf::load_extensions;
1983		2774
1984	# reattach attachments to objects	2775	warn "reattaching attachments to objects/players";
1985	warn "reattach";	2776	_global_reattach; # objects, sockets
1986	_global_reattach;	2777	warn "reattaching attachments to maps";
1987	};	2778	reattach $_ for values %MAP;
		2779	warn "reattaching attachments to players";
		2780	reattach $_ for values %PLAYER;
1988		2781
1989	if ($@) {	2782	warn "leaving sync_job";
		2783
		2784	1
		2785	} or do {
1990	warn $@;	2786	warn $@;
1991	warn "error while reloading, exiting.";	2787	warn "error while reloading, exiting.";
1992	exit 1;	2788	exit 1;
1993	}	2789	};
1994		2790
1995	warn "reloaded successfully";	2791	warn "reloaded";
1996	};	2792	};
1997		2793
1998	#############################################################################	2794	our $RELOAD_WATCHER; # used only during reload
1999		2795
2000	unless ($LINK_MAP) {	2796	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	2797	# doing reload synchronously and two reloads happen back-to-back,
		2798	# coro crashes during coro_state_free->destroy here.
2002		2799
2003	$LINK_MAP->width (41);	2800	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	2801	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	2802	after => 0,
		2803	data => WF_AUTOCANCEL,
2013	cb => sub {	2804	cb => sub {
2014	$_[0]->w->cancel;	2805	do_reload_perl;
2015		2806	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	2807	},
2034		2808	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	2809	}
2040
2041	register "<global>", __PACKAGE__;
2042		2810
2043	register_command "reload" => sub {	2811	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	2812	my ($who, $arg) = @_;
2045		2813
2046	if ($who->flag (FLAG_WIZ)) {	2814	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	2815	$who->message ("reloading server.");
		2816	async { reload_perl };
2050	}	2817	}
2051	};	2818	};
2052		2819
2053	unshift @INC, $LIBDIR;	2820	unshift @INC, $LIBDIR;
2054		2821
		2822	my $bug_warning = 0;
		2823
		2824	our @WAIT_FOR_TICK;
		2825	our @WAIT_FOR_TICK_BEGIN;
		2826
		2827	sub wait_for_tick {
		2828	return unless $TICK_WATCHER->is_active;
		2829	return if $Coro::current == $Coro::main;
		2830
		2831	my $signal = new Coro::Signal;
		2832	push @WAIT_FOR_TICK, $signal;
		2833	$signal->wait;
		2834	}
		2835
		2836	sub wait_for_tick_begin {
		2837	return unless $TICK_WATCHER->is_active;
		2838	return if $Coro::current == $Coro::main;
		2839
		2840	my $signal = new Coro::Signal;
		2841	push @WAIT_FOR_TICK_BEGIN, $signal;
		2842	$signal->wait;
		2843	}
		2844
		2845	my $min = 1e6;#d#
		2846	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	2847	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	2848	reentrant => 0,
		2849	parked => 1,
2057	prio => 0,	2850	prio => 0,
2058	at => $NEXT_TICK || $TICK,	2851	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	2852	data => WF_AUTOCANCEL,
2060	cb => sub {	2853	cb => sub {
2061	unless ($FREEZE) {	2854	if ($Coro::current != $Coro::main) {
		2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2856	unless ++$bug_warning > 10;
		2857	return;
		2858	}
		2859
		2860	$NOW = $tick_start = Event::time;
		2861
2062	cf::server_tick; # one server iteration	2862	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	2863
		2864	0 && sync_job {#d#
		2865	for(1..10) {
		2866	my $t = Event::time;
		2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2868	or die;
		2869
		2870	$map->width (50);
		2871	$map->height (50);
		2872	$map->alloc;
		2873	$map->_load_objects ("/tmp/x.map", 1);
		2874	my $t = Event::time - $t;
		2875
		2876	#next unless $t < 0.0013;#d#
		2877	if ($t < $min) {
		2878	$min = $t;
		2879	}
		2880	$avg = $avg * 0.99 + $t * 0.01;
		2881	}
		2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2883	exit 0;
		2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	2885	};
2065		2886
		2887	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	2888	$NEXT_TICK += $TICK;
2067		2889
		2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2892	Coro::async_pool {
		2893	write_runtime
		2894	or warn "ERROR: unable to write runtime file: $!";
		2895	};
		2896	}
		2897
		2898	# my $AFTER = Event::time;
		2899	# warn $AFTER - $NOW;#d#
		2900
		2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2902	$sig->send;
		2903	}
		2904	while (my $sig = shift @WAIT_FOR_TICK) {
		2905	$sig->send;
		2906	}
		2907
		2908	$NOW = Event::time;
		2909
2068	# if we are delayed by four ticks or more, skip them all	2910	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		2912
2071	$TICK_WATCHER->at ($NEXT_TICK);	2913	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	2914	$TICK_WATCHER->start;
		2915
		2916	$LOAD = ($NOW - $tick_start) / $TICK;
		2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2918
		2919	_post_tick;
		2920
		2921
2073	},	2922	},
2074	);	2923	);
2075		2924
		2925	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	2926	BDB::max_poll_time $TICK * 0.1;
2077		2927	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	2928	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	2929	fd => BDB::poll_fileno,
2080	poll => 'r',	2930	poll => 'r',
2081	prio => 5,	2931	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	2932	data => WF_AUTOCANCEL,
2088	after => 0,	2933	cb => \&BDB::poll_cb,
2089	interval => 10,	2934	);
2090	cb => sub {	2935	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	2936
2092	write_runtime	2937	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	2938	my $status;
		2939	my $current = $Coro::current;
		2940	(
		2941	sub {
		2942	$status = $!;
		2943	$current->ready; undef $current;
		2944	},
		2945	sub {
		2946	Coro::schedule while defined $current;
		2947	$! = $status;
		2948	},
		2949	)
		2950	};
		2951
		2952	unless ($DB_ENV) {
		2953	$DB_ENV = BDB::db_env_create;
		2954
		2955	cf::sync_job {
		2956	eval {
		2957	BDB::db_env_open
		2958	$DB_ENV,
		2959	$BDBDIR,
		2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2962	0666;
		2963
		2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2965
		2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2967	$DB_ENV->set_lk_detect;
		2968	};
		2969
		2970	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	2971	};
2095	},	2972	}
2096	);	2973	}
		2974
		2975	{
		2976	IO::AIO::min_parallel 8;
		2977
		2978	undef $Coro::AIO::WATCHER;
		2979	IO::AIO::max_poll_time $TICK * 0.1;
		2980	$AIO_POLL_WATCHER = Event->io (
		2981	reentrant => 0,
		2982	data => WF_AUTOCANCEL,
		2983	fd => IO::AIO::poll_fileno,
		2984	poll => 'r',
		2985	prio => 6,
		2986	cb => \&IO::AIO::poll_cb,
		2987	);
		2988	}
		2989
		2990	my $_log_backtrace;
		2991
		2992	sub _log_backtrace {
		2993	my ($msg, @addr) = @_;
		2994
		2995	$msg =~ s/\n//;
		2996
		2997	# limit the # of concurrent backtraces
		2998	if ($_log_backtrace < 2) {
		2999	++$_log_backtrace;
		3000	async {
		3001	my @bt = fork_call {
		3002	@addr = map { sprintf "%x", $_ } @addr;
		3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3005	or die "addr2line: $!";
		3006
		3007	my @funcs;
		3008	my @res = <$fh>;
		3009	chomp for @res;
		3010	while (@res) {
		3011	my ($func, $line) = splice @res, 0, 2, ();
		3012	push @funcs, "[$func] $line";
		3013	}
		3014
		3015	@funcs
		3016	};
		3017
		3018	LOG llevInfo, "[ABT] $msg\n";
		3019	LOG llevInfo, "[ABT] $_\n" for @bt;
		3020	--$_log_backtrace;
		3021	};
		3022	} else {
		3023	LOG llevInfo, "[ABT] $msg\n";
		3024	LOG llevInfo, "[ABT] [suppressed]\n";
		3025	}
		3026	}
		3027
		3028	# load additional modules
		3029	use cf::pod;
		3030
		3031	END { cf::emergency_save }
2097		3032
2098	1	3033	1
2099		3034

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