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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.275 by root, Thu Jun 7 19:12:22 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	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
91	every server tick.	129	every server tick.
92		130
93	=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
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	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.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		194
134	# 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
135	# within the Safe compartment.	196	# within the Safe compartment.
136	for my $pkg (qw(	197	for my $pkg (qw(
137	cf::global cf::attachable	198	cf::global cf::attachable
…		…
146		207
147	$Event::DIED = sub {	208	$Event::DIED = sub {
148	warn "error in event callback: @_";	209	warn "error in event callback: @_";
149	};	210	};
150		211
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
156		213
157	=over 4	214	=over 4
158		215
159	=cut	216	=item dumpval $ref
160		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
161	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
162		240
163	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
164		242
165	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
166		244
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
175		246
176	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
177		248
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	249	=item cf::lock_wait $string
208		250
209	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
210		252
211	=item my $lock = cf::lock_acquire $string	253	=item my $lock = cf::lock_acquire $string
212		254
213	Wait until the given lock is available and then acquires it and returns	255	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	257	for example when the coroutine gets canceled), the lock is automatically
216	returned.	258	returned.
217		259
218	Lock names should begin with a unique identifier (for example, find_map	260	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	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.
220		266
221	=cut	267	=cut
222		268
223	our %LOCK;	269	our %LOCK;
224		270
…		…
238	# wait, to be sure we are not locked	284	# wait, to be sure we are not locked
239	lock_wait $key;	285	lock_wait $key;
240		286
241	$LOCK{$key} = [];	287	$LOCK{$key} = [];
242		288
243	cf::guard {	289	Coro::guard {
244	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
246	}	292	}
247	}	293	}
248		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	$guard
		309	}
		310
249	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
250		312
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	313	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
253		316
254	=cut	317	=cut
255		318
256	sub async(&) {	319	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		320
265	=item cf::sync_job { BLOCK }	321	=item cf::sync_job { BLOCK }
266		322
267	The design of crossfire+ requires that the main coro ($Coro::main) is	323	The design of crossfire+ requires that the main coro ($Coro::main) is
268	always able to handle events or runnable, as crossfire+ is only partly	324	always able to handle events or runnable, as crossfire+ is only partly
…		…
277		333
278	sub sync_job(&) {	334	sub sync_job(&) {
279	my ($job) = @_;	335	my ($job) = @_;
280		336
281	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
282	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
284		342
285	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	344	# (but this is cancel-safe)
287	local $FREEZE = 1;	345	my $freeze_guard = freeze_mainloop;
288		346
289	my $busy = 1;	347	my $busy = 1;
290	my @res;	348	my @res;
291		349
292	(Coro::async {	350	(async {
293	@res = eval { $job->() };	351	@res = eval { $job->() };
294	warn $@ if $@;	352	warn $@ if $@;
295	undef $busy;	353	undef $busy;
296	})->prio (Coro::PRIO_MAX);	354	})->prio (Coro::PRIO_MAX);
297		355
298	while ($busy) {	356	while ($busy) {
299	Coro::cede_notself;	357	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	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
302		366
303	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
304	} else {	368	} else {
305	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
306		370
307	$job->()	371	$job->()
308	}	372	}
309	}	373	}
310		374
311	=item $coro = cf::coro { BLOCK }	375	=item $coro = cf::async_ext { BLOCK }
312		376
313	Creates and returns a new coro. This coro is automcatially being canceled	377	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	378	extension calling this is being unloaded.
315		379
316	=cut	380	=cut
317		381
318	sub coro(&) {	382	sub async_ext(&) {
319	my $cb = shift;	383	my $cb = shift;
320		384
321	my $coro = &cf::async ($cb);	385	my $coro = &Coro::async ($cb);
322		386
323	$coro->on_destroy (sub {	387	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	388	delete $EXT_CORO{$coro+0};
325	});	389	});
326	$EXT_CORO{$coro+0} = $coro;	390	$EXT_CORO{$coro+0} = $coro;
327		391
328	$coro	392	$coro
329	}	393	}
330		394
331	sub write_runtime {	395	sub write_runtime {
332	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";
333		404
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	406	or return;
336		407
		408	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	413	and return;
340		414
		415	# always fsync - this file is important
341	aio_fsync $fh	416	aio_fsync $fh
342	and return;	417	and return;
343		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
344	close $fh	422	close $fh
345	or return;	423	or return;
346		424
347	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
348	and return;	426	and return;
349		427
		428	warn "runtime file written.\n";
		429
350	1	430	1
351	}	431	}
352		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		442	}
		443
353	=back	444	=back
354		445
355	=cut	446	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		447
477	#############################################################################	448	#############################################################################
478		449
479	=head2 ATTACHABLE OBJECTS	450	=head2 ATTACHABLE OBJECTS
480		451
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	578	our @CB_MAP = ();
608		579
609	my %attachment;	580	my %attachment;
610		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
611	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
613		590
614	use sort 'stable';	591	use sort 'stable';
615		592
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
650		627
651	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		632
656	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	634	my $pkg = shift @arg;
658		635
659	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
700	if (ref $_[0]) {	677	if (ref $_[0]) {
701	_object_attach @_;	678	_object_attach @_;
702	} else {	679	} else {
703	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
704	}	681	}
		682	_recalc_want;
705	};	683	};
706		684
707	# all those should be optimised	685	# all those should be optimised
708	sub cf::attachable::detach {	686	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
713	reattach ($obj);	691	reattach ($obj);
714	} else {	692	} else {
715	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
716	}	694	}
		695	_recalc_want;
717	};	696	};
718		697
719	sub cf::attachable::attached {	698	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
721		700
…		…
786	# object support	765	# object support
787		766
788	sub reattach {	767	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		772
792	my $registry = $obj->registry;	773	my $registry = $obj->registry;
793		774
794	@$registry = ();	775	@$registry = ();
795		776
…		…
842	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
843		824
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	829	close $fh;
849		830
850	if (@$objs) {	831	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	837	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
858	}	839	}
859	} else {	840	} else {
860	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
892	or return;	873	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
894	}	875	}
895		876
896	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	879	return ($data, $av);
899	}	880	}
900		881
901	#############################################################################	882	#############################################################################
902	# command handling &c	883	# command handling &c
…		…
927	=cut	908	=cut
928		909
929	sub register_extcmd {	910	sub register_extcmd {
930	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
931		912
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
936	}	914	}
937		915
938	cf::player->attach (	916	cf::player->attach (
939	on_command => sub {	917	on_command => sub {
940	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
953		931
954	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
955		933
956	if (ref $msg) {	934	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	938	}
961	}	939	}
962	} else {	940	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		943
966	cf::override;	944	cf::override;
967	},	945	},
968	);	946	);
969		947
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	948	sub load_extension {
977	my ($path) = @_;	949	my ($path) = @_;
978		950
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	952	my $base = $1;
981	my $pkg = $1;	953	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	954	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	955	$pkg = "ext::$pkg";
984		956
985	warn "loading '$path' into '$pkg'\n";	957	warn "... loading '$path' into '$pkg'\n";
986		958
987	open my $fh, "<:utf8", $path	959	open my $fh, "<:utf8", $path
988	or die "$path: $!";	960	or die "$path: $!";
989		961
990	my $source =	962	my $source =
991	"package $pkg; use strict; use utf8;\n"	963	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	964	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	965	. (do { local $/; <$fh> })
994	. "\n};\n1";	966	. "\n};\n1";
995		967
996	eval $source	968	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	969	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	970	: "extension disabled.\n";
999		971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	972	warn $@;
1001	$ext_pkg{$base} = $pkg;	973	warn "mandatory extension failed to load, exiting.\n";
1002		974	exit 1;
1003	# no strict 'refs';	975	}
1004	# @{"$pkg\::ISA"} = ext::;	976	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	977	}
1019		978
1020	# remove commands	979	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	980	}
1045		981
1046	sub load_extensions {	982	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	983	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	984	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	988	} or warn "$ext not loaded: $@";
1053	}	989	}
1054	}	990	}
1055		991
1056	#############################################################################	992	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		993
1094	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
1095		995
1096	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
1097		997
		998	=cut
		999
		1000	package cf::player;
		1001
		1002	use Coro::AIO;
		1003
1098	=head3 cf::player	1004	=head3 cf::player
1099		1005
1100	=over 4	1006	=over 4
1101		1007
1102	=item cf::player::exists $login	1008	=item cf::player::find $login
1103		1009
1104	Returns true when the given account exists.	1010	Returns the given player object, loading it if necessary (might block).
1105		1011
1106	=cut	1012	=cut
1107		1013
1108	sub cf::player::exists($) {	1014	sub playerdir($) {
1109	cf::player::find $_[0]	1015	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1017	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1114		1191
1115	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1116		1193
1117	=cut	1194	=cut
1118		1195
1119	sub cf::player::ext_reply($$$%) {	1196	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1121		1198
1122	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1123		1200
1124	$self->send ("ext " . to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
		1202	}
		1203
		1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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
1125	}	1243	}
1126		1244
1127	=back	1245	=back
1128
1129		1246
1130	=head3 cf::map	1247	=head3 cf::map
1131		1248
1132	=over 4	1249	=over 4
1133		1250
…		…
1136	package cf::map;	1253	package cf::map;
1137		1254
1138	use Fcntl;	1255	use Fcntl;
1139	use Coro::AIO;	1256	use Coro::AIO;
1140		1257
		1258	use overload
		1259	'""' => \&as_string,
		1260	fallback => 1;
		1261
1141	our $MAX_RESET = 7200;	1262	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1263	our $DEFAULT_RESET = 3000;
1143		1264
1144	sub generate_random_map {	1265	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1268	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1272	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1273	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1276	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
		1313
		1314	sub normalise {
		1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
		1320
		1321	# map plan:
		1322	#
		1323	# /! non-realised random map exit (special hack!)
		1324	# {... are special paths that are not being touched
		1325	# ?xxx/... are special absolute paths
		1326	# ?random/... random maps
		1327	# /... normal maps
		1328	# ~user/... per-player map of a specific user
		1329
		1330	$path =~ s/$PATH_SEP/\//go;
		1331
		1332	# treat it as relative path if it starts with
		1333	# something that looks reasonable
		1334	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1335	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1336
		1337	$base =~ s{[^/]+/?$}{};
		1338	$path = "$base/$path";
		1339	}
		1340
		1341	for ($path) {
		1342	redo if s{//}{/};
		1343	redo if s{/\.?/}{/};
		1344	redo if s{/[^/]+/\.\./}{/};
		1345	}
		1346
		1347	$path
		1348	}
		1349
		1350	sub new_from_path {
		1351	my (undef, $path, $base) = @_;
		1352
		1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1354
		1355	$path = normalise $path, $base;
		1356
		1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1359	my $self = bless cf::map::new, $pkg;
		1360	$self->{path} = $path; $self->path ($path);
		1361	$self->init; # pass $1 etc.
		1362	return $self;
		1363	}
		1364	}
		1365
		1366	Carp::carp "unable to resolve path '$path' (base '$base').";
		1367	()
		1368	}
		1369
		1370	sub init {
		1371	my ($self) = @_;
		1372
		1373	$self
		1374	}
		1375
		1376	sub as_string {
		1377	my ($self) = @_;
		1378
		1379	"$self->{path}"
		1380	}
		1381
		1382	# the displayed name, this is a one way mapping
		1383	sub visible_name {
		1384	&as_string
		1385	}
		1386
		1387	# the original (read-only) location
		1388	sub load_path {
		1389	my ($self) = @_;
		1390
		1391	"$MAPDIR/$self->{path}.map"
		1392	}
		1393
		1394	# the temporary/swap location
		1395	sub save_path {
		1396	my ($self) = @_;
		1397
		1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1399	"$TMPDIR/$path.map"
		1400	}
		1401
		1402	# the unique path, undef == no special unique path
		1403	sub uniq_path {
		1404	my ($self) = @_;
		1405
		1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1407	"$UNIQUEDIR/$path"
1161	}	1408	}
1162		1409
1163	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1164	# all maps in C++...	1411	# all maps in C++...
1165	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1167		1414
1168	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1170	}	1417	}
1171		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
		1427	sub unlink_save {
		1428	my ($self) = @_;
		1429
		1430	utf8::encode (my $save = $self->save_path);
		1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1433	}
		1434
1172	sub try_load_header($) {	1435	sub load_header_from($) {
1173	my ($path) = @_;	1436	my ($self, $path) = @_;
1174		1437
1175	utf8::encode $path;	1438	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
		1440	# or return;
		1441
		1442	$self->_load_header ($path)
1177	or return;	1443	or return;
1178		1444
1179	my $map = cf::map::new	1445	$self->{load_path} = $path;
		1446
		1447	1
		1448	}
		1449
		1450	sub load_header_orig {
		1451	my ($self) = @_;
		1452
		1453	$self->load_header_from ($self->load_path)
		1454	}
		1455
		1456	sub load_header_temp {
		1457	my ($self) = @_;
		1458
		1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
		1479	}
		1480
		1481	sub load_header {
		1482	my ($self) = @_;
		1483
		1484	if ($self->load_header_temp) {
		1485	$self->prepare_temp;
		1486	} else {
		1487	$self->load_header_orig
1180	or return;	1488	or return;
		1489	$self->prepare_orig;
		1490	}
1181		1491
1182	$map->load_header ($path)	1492	$self->{deny_reset} = 1
1183	or return;	1493	if $self->no_reset;
1184		1494
1185	$map->{load_path} = $path;	1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
1186		1497
1187	$map	1498	1
1188	}	1499	}
1189		1500
1190	sub find_map;	1501	sub find;
1191	sub find_map {	1502	sub find {
1192	my ($path, $origin) = @_;	1503	my ($path, $origin) = @_;
1193		1504
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1505	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1506
1199	cf::lock_wait "map_find:$key";	1507	cf::lock_wait "map_find:$path";
1200		1508
1201	$cf::MAP{$key} || do {	1509	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1510	my $guard = cf::lock_acquire "map_find:$path";
1203		1511	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1512	or return;
1219		1513
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1515
1233	if ($map->should_reset) {	1516	$map->load_header
		1517	or return;
		1518
		1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1522	$map->reset;
1235	undef $guard;	1523	undef $guard;
1236	$map = find_map $path	1524	return find $path;
1237	or return;
1238	}	1525	}
1239		1526
1240	$cf::MAP{$key} = $map	1527	$cf::MAP{$path} = $map
1241	}	1528	}
1242	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1243		1533
1244	sub load {	1534	sub load {
1245	my ($self) = @_;	1535	my ($self) = @_;
1246		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1247	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1542	my $guard = cf::lock_acquire "map_load:$path";
1249		1543
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1545
1252	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1253		1547
1254	$self->alloc;	1548	$self->alloc;
		1549
		1550	$self->pre_load;
		1551	Coro::cede;
		1552
1255	$self->load_objects ($self->{load_path}, 1)	1553	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1554	or return;
1257		1555
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1557	if delete $self->{load_original};
1260		1558
1261	if (my $uniq = $path->uniq_path) {	1559	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1560	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1561	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1562	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1563	$self->_load_objects ($uniq, 0);
1266	}	1564	}
1267	}	1565	}
1268		1566
		1567	Coro::cede;
1269	# now do the right thing for maps	1568	# now do the right thing for maps
1270	$self->link_multipart_objects;	1569	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1571	unless $self->difficulty;
		1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1282	$self->activate;	1581	$self->activate;
1283	}	1582	}
1284		1583
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1585	}
1287		1586
1288	sub load_map_sync {	1587	$self->post_load;
		1588	}
		1589
		1590	sub customise_for {
		1591	my ($self, $ob) = @_;
		1592
		1593	return find "~" . $ob->name . "/" . $self->{path}
		1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
		1598
		1599	$self
		1600	}
		1601
		1602	# find and load all maps in the 3x3 area around a map
		1603	sub load_diag {
		1604	my ($map) = @_;
		1605
		1606	my @diag; # diagonal neighbours
		1607
		1608	for (0 .. 3) {
		1609	my $neigh = $map->tile_path ($_)
		1610	or next;
		1611	$neigh = find $neigh, $map
		1612	or next;
		1613	$neigh->load;
		1614
		1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1617	}
		1618
		1619	for (@diag) {
		1620	my $neigh = find @$_
		1621	or next;
		1622	$neigh->load;
		1623	}
		1624	}
		1625
		1626	sub find_sync {
1289	my ($path, $origin) = @_;	1627	my ($path, $origin) = @_;
1290		1628
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1629	cf::sync_job { find $path, $origin }
		1630	}
1292		1631
1293	cf::sync_job {	1632	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1633	my ($map) = @_;
1295	or return;	1634
		1635	cf::sync_job { $map->load };
		1636	}
		1637
		1638	our %MAP_PREFETCH;
		1639	our $MAP_PREFETCHER = undef;
		1640
		1641	sub find_async {
		1642	my ($path, $origin) = @_;
		1643
		1644	$path = normalise $path, $origin && $origin->{path};
		1645
		1646	if (my $map = $cf::MAP{$path}) {
		1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1648	}
		1649
		1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
1296	$map->load;	1656	$map->load;
1297	$map	1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
1298	}	1662	};
		1663	$MAP_PREFETCHER->prio (6);
		1664
		1665	()
1299	}	1666	}
1300		1667
1301	sub save {	1668	sub save {
1302	my ($self) = @_;	1669	my ($self) = @_;
1303		1670
		1671	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1672
1304	$self->{last_save} = $cf::RUNTIME;	1673	$self->{last_save} = $cf::RUNTIME;
1305		1674
1306	return unless $self->dirty;	1675	return unless $self->dirty;
1307		1676
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1677	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1679
1311	$self->{load_path} = $save;	1680	$self->{load_path} = $save;
1312		1681
1313	return if $self->{deny_save};	1682	return if $self->{deny_save};
1314		1683
		1684	local $self->{last_access} = $self->last_access;#d#
		1685
		1686	cf::async {
		1687	$_->contr->save for $self->players;
		1688	};
		1689
1315	if ($uniq) {	1690	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1691	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1692	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1693	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1694	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1695	}
1321	}	1696	}
1322		1697
1323	sub swap_out {	1698	sub swap_out {
1324	my ($self) = @_;	1699	my ($self) = @_;
1325		1700
1326	# save first because save cedes	1701	# save first because save cedes
1327	$self->save;	1702	$self->save;
		1703
		1704	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1705
1329	return if $self->players;	1706	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1707	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1708	return if $self->{deny_save};
1332		1709
…		…
1336		1713
1337	sub reset_at {	1714	sub reset_at {
1338	my ($self) = @_;	1715	my ($self) = @_;
1339		1716
1340	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1343		1719
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1722
…		…
1351	my ($self) = @_;	1727	my ($self) = @_;
1352		1728
1353	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1354	}	1730	}
1355		1731
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1732	sub reset {
1378	my ($self) = @_;	1733	my ($self) = @_;
1379		1734
		1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1736
1380	return if $self->players;	1737	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		1738
1383	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1384		1750
1385	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
		1752
		1753	$self->clear;
1386		1754
1387	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1388		1756
1389	$self->unlink_save;	1757	$self->unlink_save;
1390	$self->destroy;	1758	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1394		1762
1395	sub nuke {	1763	sub nuke {
1396	my ($self) = @_;	1764	my ($self) = @_;
1397		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1401	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1402	}	1779	}
1403		1780
1404	sub customise_for {	1781	=item cf::map::unique_maps
1405	my ($map, $ob) = @_;
1406		1782
1407	if ($map->per_player) {	1783	Returns an arrayref of paths of all shared maps that have
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1784	instantiated unique items. May block.
1409	}
1410		1785
1411	$map	1786	=cut
1412	}
1413		1787
1414	sub emergency_save {	1788	sub unique_maps() {
1415	local $cf::FREEZE = 1;	1789	my $files = aio_readdir $UNIQUEDIR
		1790	or return;
1416		1791
1417	warn "enter emergency map save\n";	1792	my @paths;
1418		1793
1419	cf::sync_job {	1794	for (@$files) {
1420	warn "begin emergency map save\n";	1795	utf8::decode $_;
1421	$_->save for values %cf::MAP;	1796	next if /\.pst$/;
		1797	next unless /^$PATH_SEP/o;
		1798
		1799	push @paths, cf::map::normalise $_;
1422	};	1800	}
1423		1801
1424	warn "end emergency map save\n";	1802	\@paths
1425	}	1803	}
1426		1804
1427	package cf;	1805	package cf;
1428		1806
1429	=back	1807	=back
1430		1808
		1809	=head3 cf::object
		1810
		1811	=cut
		1812
		1813	package cf::object;
		1814
		1815	=over 4
		1816
		1817	=item $ob->inv_recursive
		1818
		1819	Returns the inventory of the object _and_ their inventories, recursively.
		1820
		1821	=cut
		1822
		1823	sub inv_recursive_;
		1824	sub inv_recursive_ {
		1825	map { $_, inv_recursive_ $_->inv } @_
		1826	}
		1827
		1828	sub inv_recursive {
		1829	inv_recursive_ inv $_[0]
		1830	}
		1831
		1832	package cf;
		1833
		1834	=back
1431		1835
1432	=head3 cf::object::player	1836	=head3 cf::object::player
1433		1837
1434	=over 4	1838	=over 4
1435		1839
…		…
1475		1879
1476	=item $player_object->enter_link	1880	=item $player_object->enter_link
1477		1881
1478	Freezes the player and moves him/her to a special map (C<{link}>).	1882	Freezes the player and moves him/her to a special map (C<{link}>).
1479		1883
1480	The player should be reaosnably safe there for short amounts of time. You	1884	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	1885	I<MUST> call C<leave_link> as soon as possible, though.
1482		1886
		1887	Will never block.
		1888
1483	=item $player_object->leave_link ($map, $x, $y)	1889	=item $player_object->leave_link ($map, $x, $y)
1484		1890
1485	Moves the player out of the specila link map onto the given map. If the	1891	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	1892	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	1893	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	1894	fails, to the emergency map position.
1489		1895
1490	Might block.	1896	Might block.
1491		1897
1492	=cut	1898	=cut
		1899
		1900	sub link_map {
		1901	unless ($LINK_MAP) {
		1902	$LINK_MAP = cf::map::find "{link}"
		1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1904	$LINK_MAP->load;
		1905	}
		1906
		1907	$LINK_MAP
		1908	}
1493		1909
1494	sub cf::object::player::enter_link {	1910	sub cf::object::player::enter_link {
1495	my ($self) = @_;	1911	my ($self) = @_;
1496		1912
1497	$self->deactivate_recursive;	1913	$self->deactivate_recursive;
1498		1914
1499	return if $self->map == $LINK_MAP;	1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		1916
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	1918	if $self->map && $self->map->{path} ne "{link}";
1503		1919
1504	$self->enter_map ($LINK_MAP, 20, 20);	1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	1921	}
1506		1922
1507	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
		1925
		1926	return unless $self->contr->active;
1509		1927
1510	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1511		1929
1512	unless ($map) {	1930	unless ($map) {
1513	# restore original map position	1931	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	1932	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	1933	$map = cf::map::find $map;
1516		1934
1517	unless ($map) {	1935	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	1936	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	1937	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	1938	or die "FATAL: cannot load emergency map\n";
1521	}	1939	}
1522	}	1940	}
1523		1941
1524	($x, $y) = (-1, -1)	1942	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	1945	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	1946	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	1947	if $x <=0 && $y <= 0;
1530		1948
1531	$map->load;	1949	$map->load;
		1950	$map->load_diag;
1532		1951
		1952	return unless $self->contr->active;
1533	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1535	}	1957	}
1536		1958
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1566		1960
1567	=cut	1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
1568		1965
		1966	=cut
		1967
		1968	our $GOTOGEN;
		1969
1569	sub cf::object::player::goto_map {	1970	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
		1972
		1973	# do generation counting so two concurrent goto's will be executed in-order
		1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		1975
1572	$self->enter_link;	1976	$self->enter_link;
1573		1977
1574	(cf::async {	1978	(async {
1575	$path = new cf::path $path;	1979	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
1579		1984	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	1985	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1584		1988
		1989	$map
		1990	};
		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1586	})->prio (1);	2001	})->prio (1);
1587	}	2002	}
1588		2003
1589	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1590		2005
…		…
1592		2007
1593	sub parse_random_map_params {	2008	sub parse_random_map_params {
1594	my ($spec) = @_;	2009	my ($spec) = @_;
1595		2010
1596	my $rmp = { # defaults	2011	my $rmp = { # defaults
1597	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1599	};	2016	};
1600		2017
1601	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1603		2020
…		…
1607	$rmp	2024	$rmp
1608	}	2025	}
1609		2026
1610	sub prepare_random_map {	2027	sub prepare_random_map {
1611	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2031
1613	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2034	# that depends on the exit object
1616		2035
1617	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1618		2037
1619	if ($exit->map) {	2038	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1624	}	2043	}
1625		2044
1626	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1627		2046
1628	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1630		2050
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1633		2055
1634	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2057	$exit->msg (undef);
1636	}	2058	}
1637	}	2059	}
…		…
1639	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1641		2063
1642	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
1643		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
		2076
1644	$self->enter_link;	2077	$self->enter_link;
1645		2078
1646	(cf::async {	2079	(async {
		2080	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2081	unless (eval {
1648	prepare_random_map $exit	2082	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2083
1654	1;	2084	1;
1655	}) {	2085	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2088	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2090
1661	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2092	$self->leave_link;
1663	}	2093	}
1664	})->prio (1);	2094	})->prio (1);
…		…
1677		2107
1678	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1680		2110
1681	utf8::encode $text;	2111	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2113	}
1684		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1685		2127
1686	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1687		2129
1688	Queues a query to the client, calling the given callback with	2130	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1718	# get handled first	2160	# get handled first
1719	my $queue = delete $ns->{query_queue}	2161	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2163
1722	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2166
1724	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1725		2168
1726	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2170	if (@$queue) {
…		…
1731	}	2174	}
1732	}	2175	}
1733	},	2176	},
1734	);	2177	);
1735		2178
1736	=item $client->coro (\&cb)	2179	=item $client->async (\&cb)
1737		2180
1738	Create a new coroutine, running the specified callback. The coroutine will	2181	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2182	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2183	or loss of connection).
1741		2184
1742	=cut	2185	=cut
1743		2186
1744	sub cf::client::coro {	2187	sub cf::client::async {
1745	my ($self, $cb) = @_;	2188	my ($self, $cb) = @_;
1746		2189
1747	my $coro = &cf::async ($cb);	2190	my $coro = &Coro::async ($cb);
1748		2191
1749	$coro->on_destroy (sub {	2192	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2193	delete $self->{_coro}{$coro+0};
1751	});	2194	});
1752		2195
…		…
1785		2228
1786	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1787		2230
1788	=pod	2231	=pod
1789		2232
1790	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1791		2234
1792	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2236	cf::object::player player
1794	cf::player peaceful	2237	cf::player peaceful
1795	cf::map trigger	2238	cf::map trigger
…		…
1880	#############################################################################	2323	#############################################################################
1881		2324
1882	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
1883		2326
1884	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
1885	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1886	excludes objects.	2329	convert to/from binary).
1887		2330
1888	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2332	using it, it should be unique.
1890		2333
1891	=over 4	2334	=over 4
1892		2335
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2336	=item $value = cf::db_get $family => $key
1900		2337
1901	Returns a single value from the database	2338	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2339
1908	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
1909		2341
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2343
1921	=cut	2344	=cut
1922		2345
1923	our $DB;	2346	our $DB;
1924		2347
1925	{	2348	sub db_init {
1926	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
1927		2351
1928	sub db_load() {	2352	cf::sync_job {
1929	$DB = stat $path ? Storable::retrieve $path : { };	2353	eval {
1930	}	2354	$DB->set_flags (BDB::CHKSUM);
1931		2355
1932	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1933		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1934	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
1935	waitpid $pid, 0 if $pid;	2359	};
1936	if (0 == ($pid = fork)) {	2360	cf::cleanup "db_open(db): $@" if $@;
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2361	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	2362	}
		2363	}
1954		2364
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {	2365	sub db_get($$) {
1961	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
1966	sub db_put($$;$) {	2376	sub db_put($$$) {
1967	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
1968	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1969	} else {	2379	}
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		2380
1975	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
1976	prio => 10000,	2382
1977	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
1978	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
1979	},	2413	}
1980	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
1981	}	2493	}
1982		2494
1983	#############################################################################	2495	#############################################################################
1984	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
1985		2585
1986	sub cfg_load {	2586	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2588	or return;
1989		2589
1990	local $/;	2590	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
1992		2592
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2593	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2594
		2595	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2596	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2597
1995	if (exists $CFG{mlockall}) {	2598	if (exists $CFG{mlockall}) {
1996	eval {	2599	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2600	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2601	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2602	};
2000	warn $@ if $@;	2603	warn $@ if $@;
2001	}	2604	}
2002	}	2605	}
2003		2606
2004	sub main {	2607	sub main {
2005	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2611	(async {
2009	Event::one_event;	2612	Event::one_event;
2010	})->();	2613	})->prio (Coro::PRIO_MAX);
2011	};	2614	};
2012		2615
2013	cfg_load;	2616	cfg_load;
2014	db_load;	2617	db_init;
2015	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
2016	Event::loop;	2621	Event::loop;
2017	}	2622	}
2018		2623
2019	#############################################################################	2624	#############################################################################
2020	# initialisation	2625	# initialisation and cleanup
2021		2626
		2627	# install some emergency cleanup handlers
		2628	BEGIN {
		2629	for my $signal (qw(INT HUP TERM)) {
		2630	Event->signal (
		2631	reentrant => 0,
		2632	data => WF_AUTOCANCEL,
		2633	signal => $signal,
		2634	prio => 0,
		2635	cb => sub {
		2636	cf::cleanup "SIG$signal";
		2637	},
		2638	);
		2639	}
		2640	}
		2641
		2642	sub emergency_save() {
		2643	my $freeze_guard = cf::freeze_mainloop;
		2644
		2645	warn "enter emergency perl save\n";
		2646
		2647	cf::sync_job {
		2648	# use a peculiar iteration method to avoid tripping on perl
		2649	# refcount bugs in for. also avoids problems with players
		2650	# and maps saved/destroyed asynchronously.
		2651	warn "begin emergency player save\n";
		2652	for my $login (keys %cf::PLAYER) {
		2653	my $pl = $cf::PLAYER{$login} or next;
		2654	$pl->valid or next;
		2655	$pl->save;
		2656	}
		2657	warn "end emergency player save\n";
		2658
		2659	warn "begin emergency map save\n";
		2660	for my $path (keys %cf::MAP) {
		2661	my $map = $cf::MAP{$path} or next;
		2662	$map->valid or next;
		2663	$map->save;
		2664	}
		2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
		2670	};
		2671
		2672	warn "leave emergency perl save\n";
		2673	}
		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
2022	sub reload() {	2682	sub do_reload_perl() {
2023	# can/must only be called in main	2683	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
2026	return;	2686	return;
2027	}	2687	}
2028		2688
2029	warn "reloading...";	2689	warn "reloading...";
2030		2690
2031	local $FREEZE = 1;	2691	warn "entering sync_job";
		2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
2033		2697
2034	eval {	2698	warn "syncing database to disk";
		2699	BDB::db_env_txn_checkpoint $DB_ENV;
		2700
2035	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
2036		2702
2037	# cancel all watchers	2703	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2706	}
2041		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
2042	# cancel all extension coros	2719	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2721	%EXT_CORO = ();
2045		2722
2046	# unload all extensions	2723	warn "removing commands";
2047	for (@exts) {	2724	%COMMAND = ();
		2725
		2726	warn "removing ext commands";
		2727	%EXTCMD = ();
		2728
		2729	warn "unloading/nuking all extensions";
		2730	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2731	warn "... unloading $pkg";
2049	unload_extension $_;	2732
		2733	if (my $cb = $pkg->can ("unload")) {
		2734	eval {
		2735	$cb->($pkg);
		2736	1
		2737	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2738	}
2051		2739
		2740	warn "... nuking $pkg";
		2741	Symbol::delete_package $pkg;
		2742	}
		2743
2052	# unload all modules loaded from $LIBDIR	2744	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2747
2056	warn "removing <$k>";	2748	warn "... unloading $k";
2057	delete $INC{$k};	2749	delete $INC{$k};
2058		2750
2059	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
2061		2753
…		…
2064	}	2756	}
2065		2757
2066	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
2067	}	2759	}
2068		2760
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2761	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2764
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2765	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
2082		2768
2083	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2770	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
2086		2772
2087	# reload cf.pm	2773	warn "unload completed, starting to reload now";
		2774
2088	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
2089	require cf;	2776	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2778
2092	# load config and database again	2779	warn "loading config and database again";
2093	cf::cfg_load;	2780	cf::cfg_load;
2094	cf::db_load;
2095		2781
2096	# load extensions
2097	warn "load extensions";	2782	warn "loading extensions";
2098	cf::load_extensions;	2783	cf::load_extensions;
2099		2784
2100	# reattach attachments to objects	2785	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2786	_global_reattach; # objects, sockets
2102	_global_reattach;	2787	warn "reattaching attachments to maps";
2103	};	2788	reattach $_ for values %MAP;
		2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
2104		2791
2105	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
2106	warn $@;	2796	warn $@;
2107	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
2108	exit 1;	2798	exit 1;
2109	}	2799	};
2110		2800
2111	warn "reloaded successfully";	2801	warn "reloaded";
2112	};	2802	};
2113		2803
2114	#############################################################################	2804	our $RELOAD_WATCHER; # used only during reload
2115		2805
2116	unless ($LINK_MAP) {	2806	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
2118		2809
2119	$LINK_MAP->width (41);	2810	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	2811	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	2812	after => 0,
		2813	data => WF_AUTOCANCEL,
2129	cb => sub {	2814	cb => sub {
2130	$_[0]->w->cancel;	2815	do_reload_perl;
2131		2816	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	2817	},
2150		2818	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	2819	}
2156
2157	register "<global>", __PACKAGE__;
2158		2820
2159	register_command "reload" => sub {	2821	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2161		2823
2162	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2166	}	2827	}
2167	};	2828	};
2168		2829
2169	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2170		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2173	prio => 0,	2860	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2176	cb => sub {	2863	cb => sub {
2177	unless ($FREEZE) {	2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
		2870	$NOW = $tick_start = Event::time;
		2871
2178	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	2895	};
2181		2896
		2897	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2183		2899
		2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
		2919
2184	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		2922
2187	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2189	},	2932	},
2190	);	2933	);
2191		2934
		2935	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	2936	BDB::max_poll_time $TICK * 0.1;
2193		2937	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	2938	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	2939	fd => BDB::poll_fileno,
2196	poll => 'r',	2940	poll => 'r',
2197	prio => 5,	2941	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	2942	data => WF_AUTOCANCEL,
2204	after => 0,	2943	cb => \&BDB::poll_cb,
2205	interval => 10,	2944	);
2206	cb => sub {	2945	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	2946
2208	write_runtime	2947	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	2981	};
2211	},	2982	}
2212	);	2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
		2989	IO::AIO::max_poll_time $TICK * 0.1;
		2990	$AIO_POLL_WATCHER = Event->io (
		2991	reentrant => 0,
		2992	data => WF_AUTOCANCEL,
		2993	fd => IO::AIO::poll_fileno,
		2994	poll => 'r',
		2995	prio => 6,
		2996	cb => \&IO::AIO::poll_cb,
		2997	);
		2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
		3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
		3035	}
		3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
2213		3040
2214	END { cf::emergency_save }	3041	END { cf::emergency_save }
2215		3042
2216	1	3043	1
2217		3044

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