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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.174 by root, Sun Jan 14 19:55:37 2007 UTC vs.
Revision 1.315 by root, Mon Jul 23 17:53:55 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 JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	132	every server tick.
102		133
103	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
127		177
128	=back	178	=back
129		179
130	=cut	180	=cut
131		181
132	BEGIN {	182	BEGIN {
133	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	184	my $msg = join "", @_;
135	utf8::encode $msg;
136		185
137	$msg .= "\n"	186	$msg .= "\n"
138	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
139		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
140	LOG llevError, $msg;	192	LOG llevError, $msg;
141	};	193	};
142	}	194	}
143		195
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		203
151	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	205	# within the Safe compartment.
153	for my $pkg (qw(	206	for my $pkg (qw(
154	cf::global cf::attachable	207	cf::global cf::attachable
…		…
162	}	215	}
163		216
164	$Event::DIED = sub {	217	$Event::DIED = sub {
165	warn "error in event callback: @_";	218	warn "error in event callback: @_";
166	};	219	};
		220
		221	#############################################################################
167		222
168	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
169		224
170	=over 4	225	=over 4
171		226
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	246	$d
192	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
193	}	248	}
194		249
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
198		251
199	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
200		253
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
209		255
210	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
211		257
212	=cut	258	=cut
213		259
214	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
216	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
218		264
219	=item cf::lock_wait $string	265	=item cf::lock_wait $string
220		266
221	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
222		268
…		…
228	returned.	274	returned.
229		275
230	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
232		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
233	=cut	283	=cut
234		284
235	our %LOCK;	285	our %LOCK;
236		286
237	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
258	}	308	}
259	}	309	}
260		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
261	sub freeze_mainloop {	317	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
263		319
264	my $guard = Coro::guard {	320	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	322	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
270	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
271	}	381	}
272		382
273	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
274		384
275	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		390
281	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
282		392
283	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
284		394
285	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
288		399
289	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
292	fast or be very important.	403	fast or be very important.
…		…
295		406
296	sub sync_job(&) {	407	sub sync_job(&) {
297	my ($job) = @_;	408	my ($job) = @_;
298		409
299	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
300	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
302		415
303	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
315		428
316	while ($busy) {	429	while ($busy) {
317	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
318	}	431	}
319		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
320	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
321	} else {	441	} else {
322	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
323		443
324	$job->()	444	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
344		464
345	$coro	465	$coro
346	}	466	}
347		467
348	sub write_runtime {	468	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		469
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
352	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
353		474
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		476
358	aio_fsync $fh	477	sub _store_scalar {
359	and return;	478	open my $fh, ">", \my $buf
360		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
361	close $fh	481	close $fh;
362	or return;
363		482
364	aio_rename "$runtime~", $runtime	483	$buf
365	and return;	484	}
366		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
367	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	655	}
369		656
370	=back	657	=back
371		658
372	=cut	659	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
381		668
382	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	671	Crossfire TRT).
385		672
386	=over 4	673	=over 4
387		674
388	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
389		676
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
553		840
554	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		845
559	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	847	my $pkg = shift @arg;
561		848
562	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
592	}	879	}
593		880
594	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
595	} else {	882	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	884	}
598		885
599	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
600	}	887	}
601		888
…		…
603	if (ref $_[0]) {	890	if (ref $_[0]) {
604	_object_attach @_;	891	_object_attach @_;
605	} else {	892	} else {
606	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
607	}	894	}
		895	_recalc_want;
608	};	896	};
609		897
610	# all those should be optimised	898	# all those should be optimised
611	sub cf::attachable::detach {	899	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
616	reattach ($obj);	904	reattach ($obj);
617	} else {	905	} else {
618	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
619	}	907	}
		908	_recalc_want;
620	};	909	};
621		910
622	sub cf::attachable::attached {	911	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
624		913
…		…
639	";	928	";
640	die if $@;	929	die if $@;
641	}	930	}
642		931
643	our $override;	932	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		934
646	sub override {	935	sub override {
647	$override = 1;	936	$override = 1;
648	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
649	}	938	}
650		939
651	sub do_invoke {	940	sub do_invoke {
652	my $event = shift;	941	my $event = shift;
653	my $callbacks = shift;	942	my $callbacks = shift;
654		943
655	@invoke_results = ();	944	@INVOKE_RESULTS = ();
656		945
657	local $override;	946	local $override;
658		947
659	for (@$callbacks) {	948	for (@$callbacks) {
660	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
677		966
678	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
679		968
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		972
684	=back	973	=back
685		974
686	=cut	975	=cut
687		976
688	#############################################################################	977	#############################################################################
689	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
690		990
691	sub reattach {	991	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	993	my ($obj) = @_;
694		994
…		…
747	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
748		1048
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	1053	close $fh;
754		1054
755	if (@$objs) {	1055	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	1061	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
763	}	1063	}
764	} else {	1064	} else {
765	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
797	or return;	1097	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1099	}
800		1100
801	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1103	return ($data, $av);
804	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
805		1111
806	#############################################################################	1112	#############################################################################
807	# command handling &c	1113	# command handling &c
808		1114
809	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1129	}
824		1130
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1132
827	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
828		1138
829	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
830	called.	1140	called.
831		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
832	=cut	1153	=cut
833		1154
834	sub register_extcmd {	1155	sub register_extcmd {
835	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
836		1157
837	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
838	}	1165	}
839		1166
840	cf::player->attach (	1167	cf::player->attach (
841	on_command => sub {	1168	on_command => sub {
842	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1178	cf::override;
852	},	1179	},
853	on_extcmd => sub {	1180	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
855		1182
856	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1184
858	if (ref $msg) {	1185	if (ref $msg) {
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1186	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
860	if (my %reply = $cb->($pl, $msg)) {	1187	if (my %reply = $cb->($pl, $msg)) {
861	$pl->ext_reply ($msg->{msgid}, %reply);	1188	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
867		1194
868	cf::override;	1195	cf::override;
869	},	1196	},
870	);	1197	);
871		1198
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
907	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1204	next unless -r $path;
909	eval {	1205
910	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
911	1	1263	}
912	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
913	}	1269	};
914	}	1270	}
915		1271
916	#############################################################################	1272	#############################################################################
917		1273
		1274	=back
		1275
918	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
919		1277
920	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
921		1279
922	=cut	1280	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1292	Returns the given player object, loading it if necessary (might block).
935		1293
936	=cut	1294	=cut
937		1295
938	sub playerdir($) {	1296	sub playerdir($) {
939	cf::localdir	1297	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1298	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1299	}
945		1300
946	sub path($) {	1301	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1302	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1303
949	(playerdir $login) . "/$login.pl"	1304	(playerdir $login) . "/playerdata"
950	}	1305	}
951		1306
952	sub find_active($) {	1307	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1308	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1309	and $cf::PLAYER{$_[0]}->active
…		…
957		1312
958	sub exists($) {	1313	sub exists($) {
959	my ($login) = @_;	1314	my ($login) = @_;
960		1315
961	$cf::PLAYER{$login}	1316	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1317	or cf::sync_job { !aio_stat path $login }
963	}	1318	}
964		1319
965	sub find($) {	1320	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1321	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1322	my $login = $_[0];
968		1323
969	my $guard = cf::lock_acquire "user_find:$login";	1324	my $guard = cf::lock_acquire "user_find:$login";
970		1325
971	$cf::PLAYER{$_[0]} || do {	1326	$cf::PLAYER{$_[0]} || do {
		1327	# rename old playerfiles to new ones
		1328	#TODO: remove when no longer required
		1329	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1330	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1331	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1332	aio_unlink +(playerdir $login) . "/$login.pl";
		1333
972	my $pl = load_pl path $login	1334	my $pl = load_pl path $login
973	or return;	1335	or return;
974	$cf::PLAYER{$login} = $pl	1336	$cf::PLAYER{$login} = $pl
975	}	1337	}
976	}	1338	}
…		…
1013		1375
1014	=cut	1376	=cut
1015		1377
1016	sub quit_character {	1378	sub quit_character {
1017	my ($pl) = @_;	1379	my ($pl) = @_;
		1380
		1381	my $name = $pl->ob->name;
1018		1382
1019	$pl->{deny_save} = 1;	1383	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1384	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1385
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1386	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1391	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1392	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1393	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1394	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1395	$pl->destroy;
		1396
		1397	my $prefix = qr<^~\Q$name\E/>;
		1398
		1399	# nuke player maps
		1400	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1401
1032	IO::AIO::aio_rmtree $temp;	1402	IO::AIO::aio_rmtree $temp;
		1403	}
		1404
		1405	=item $pl->kick
		1406
		1407	Kicks a player out of the game. This destroys the connection.
		1408
		1409	=cut
		1410
		1411	sub kick {
		1412	my ($pl, $kicker) = @_;
		1413
		1414	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1415	$pl->killer ("kicked");
		1416	$pl->ns->destroy;
1033	}	1417	}
1034		1418
1035	=item cf::player::list_logins	1419	=item cf::player::list_logins
1036		1420
1037	Returns am arrayref of all valid playernames in the system, can take a	1421	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1422	while and may block, so not sync_job-capable, ever.
1039		1423
1040	=cut	1424	=cut
1041		1425
1042	sub list_logins {	1426	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1427	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1428	or return [];
1045		1429
1046	my @logins;	1430	my @logins;
1047		1431
1048	for my $login (@$dirs) {	1432	for my $login (@$dirs) {
…		…
1065	=cut	1449	=cut
1066		1450
1067	sub maps($) {	1451	sub maps($) {
1068	my ($pl) = @_;	1452	my ($pl) = @_;
1069		1453
		1454	$pl = ref $pl ? $pl->ob->name : $pl;
		1455
1070	my $files = aio_readdir playerdir $pl	1456	my $files = aio_readdir playerdir $pl
1071	or return;	1457	or return;
1072		1458
1073	my @paths;	1459	my @paths;
1074		1460
1075	for (@$files) {	1461	for (@$files) {
1076	utf8::decode $_;	1462	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1463	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1464	next unless /^$PATH_SEP/o;
1079		1465
1080	s/\.map$//;	1466	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1467	}
1083		1468
1084	\@paths	1469	\@paths
1085	}	1470	}
1086		1471
		1472	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1473
		1474	Expand crossfire pod fragments into protocol xml.
		1475
		1476	=cut
		1477
		1478	sub expand_cfpod {
		1479	((my $self), (local $_)) = @_;
		1480
		1481	# escape & and <
		1482	s/&/&amp;/g;
		1483	s/(?<![BIUGH])</&lt;/g;
		1484
		1485	# this is buggy, it needs to properly take care of nested <'s
		1486
		1487	1 while
		1488	# replace B<>, I<>, U<> etc.
		1489	s/B<([^\>]*)>/<b>$1<\/b>/
		1490	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1491	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1492	# replace G<male|female> tags
		1493	|| s{G<([^>|]*)\|([^>]*)>}{
		1494	$self->gender ? $2 : $1
		1495	}ge
		1496	# replace H<hint text>
		1497	|| s{H<([^\>]*)>}
		1498	{
		1499	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1500	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1501	"")
		1502	[$self->{hintmode}]
		1503	}ge;
		1504
		1505	# create single paragraphs (very hackish)
		1506	s/(?<=\S)\n(?=\w)/ /g;
		1507
		1508	# compress some whitespace
		1509	s/\s+\n/\n/g; # ws line-ends
		1510	s/\n\n+/\n/g; # double lines
		1511	s/^\n+//; # beginning lines
		1512	s/\n+$//; # ending lines
		1513
		1514	$_
		1515	}
		1516
		1517	sub hintmode {
		1518	$_[0]{hintmode} = $_[1] if @_ > 1;
		1519	$_[0]{hintmode}
		1520	}
		1521
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1522	=item $player->ext_reply ($msgid, %msg)
1088		1523
1089	Sends an ext reply to the player.	1524	Sends an ext reply to the player.
1090		1525
1091	=cut	1526	=cut
1092		1527
1093	sub ext_reply($$$%) {	1528	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1529	my ($self, $id, %msg) = @_;
1095		1530
1096	$msg{msgid} = $id;	1531	$msg{msgid} = $id;
1097		1532	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1533	}
1100		1534
1101	package cf;	1535	=item $player->ext_event ($type, %msg)
		1536
		1537	Sends an ext event to the client.
		1538
		1539	=cut
		1540
		1541	sub ext_event($$%) {
		1542	my ($self, $type, %msg) = @_;
		1543
		1544	$self->ns->ext_event ($type, %msg);
		1545	}
		1546
		1547	=head3 cf::region
		1548
		1549	=over 4
		1550
		1551	=cut
		1552
		1553	package cf::region;
		1554
		1555	=item cf::region::find_by_path $path
		1556
		1557	Tries to decuce the likely region for a map knowing only its path.
		1558
		1559	=cut
		1560
		1561	sub find_by_path($) {
		1562	my ($path) = @_;
		1563
		1564	my ($match, $specificity);
		1565
		1566	for my $region (list) {
		1567	if ($region->{match} && $path =~ $region->{match}) {
		1568	($match, $specificity) = ($region, $region->specificity)
		1569	if $region->specificity > $specificity;
		1570	}
		1571	}
		1572
		1573	$match
		1574	}
1102		1575
1103	=back	1576	=back
1104
1105		1577
1106	=head3 cf::map	1578	=head3 cf::map
1107		1579
1108	=over 4	1580	=over 4
1109		1581
…		…
1121	our $MAX_RESET = 3600;	1593	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1594	our $DEFAULT_RESET = 3000;
1123		1595
1124	sub generate_random_map {	1596	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1597	my ($self, $rmp) = @_;
1126
1127	# mit "rum" bekleckern, nicht	1598	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1599	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1600	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1601	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1602	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1609	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1610	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1611	)
1141	}	1612	}
1142		1613
		1614	=item cf::map->register ($regex, $prio)
		1615
		1616	Register a handler for the map path matching the given regex at the
		1617	givne priority (higher is better, built-in handlers have priority 0, the
		1618	default).
		1619
		1620	=cut
		1621
1143	sub register {	1622	sub register {
1144	my (undef, $regex) = @_;	1623	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1624	my $pkg = caller;
1146		1625
1147	no strict;	1626	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1627	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1628
1150	$EXT_MAP{$pkg} = qr<$regex>;	1629	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1630	}
1152		1631
1153	# also paths starting with '/'	1632	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1633	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1155		1634
1156	sub thawer_merge {	1635	sub thawer_merge {
1157	my ($self, $merge) = @_;	1636	my ($self, $merge) = @_;
1158		1637
1159	# we have to keep some variables in memory intact	1638	# we have to keep some variables in memory intact
1160	local $self->{path};	1639	local $self->{path};
1161	local $self->{load_path};	1640	local $self->{load_path};
1162	local $self->{deny_save};
1163	local $self->{deny_reset};
1164		1641
1165	$self->SUPER::thawer_merge ($merge);	1642	$self->SUPER::thawer_merge ($merge);
1166	}	1643	}
1167		1644
1168	sub normalise {	1645	sub normalise {
1169	my ($path, $base) = @_;	1646	my ($path, $base) = @_;
		1647
		1648	$path = "$path"; # make sure its a string
		1649
		1650	$path =~ s/\.map$//;
1170		1651
1171	# map plan:	1652	# map plan:
1172	#	1653	#
1173	# /! non-realised random map exit (special hack!)	1654	# /! non-realised random map exit (special hack!)
1174	# {... are special paths that are not being touched	1655	# {... are special paths that are not being touched
…		…
1202		1683
1203	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1684	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1204		1685
1205	$path = normalise $path, $base;	1686	$path = normalise $path, $base;
1206		1687
1207	for my $pkg (keys %EXT_MAP) {	1688	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1208	if ($path =~ $EXT_MAP{$pkg}) {	1689	if ($path =~ $EXT_MAP{$pkg}[1]) {
1209	my $self = bless cf::map::new, $pkg;	1690	my $self = bless cf::map::new, $pkg;
1210	$self->{path} = $path; $self->path ($path);	1691	$self->{path} = $path; $self->path ($path);
1211	$self->init; # pass $1 etc.	1692	$self->init; # pass $1 etc.
1212	return $self;	1693	return $self;
1213	}	1694	}
1214	}	1695	}
1215		1696
1216	Carp::carp "unable to resolve path '$path'.";	1697	Carp::cluck "unable to resolve path '$path' (base '$base').";
1217	()	1698	()
1218	}	1699	}
1219		1700
1220	sub init {	1701	sub init {
1221	my ($self) = @_;	1702	my ($self) = @_;
…		…
1236		1717
1237	# the original (read-only) location	1718	# the original (read-only) location
1238	sub load_path {	1719	sub load_path {
1239	my ($self) = @_;	1720	my ($self) = @_;
1240		1721
1241	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1722	"$MAPDIR/$self->{path}.map"
1242	}	1723	}
1243		1724
1244	# the temporary/swap location	1725	# the temporary/swap location
1245	sub save_path {	1726	sub save_path {
1246	my ($self) = @_;	1727	my ($self) = @_;
1247		1728
1248	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1729	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1249	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1730	"$TMPDIR/$path.map"
1250	}	1731	}
1251		1732
1252	# the unique path, undef == no special unique path	1733	# the unique path, undef == no special unique path
1253	sub uniq_path {	1734	sub uniq_path {
1254	my ($self) = @_;	1735	my ($self) = @_;
1255		1736
1256	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1737	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1257	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1738	"$UNIQUEDIR/$path"
1258	}	1739	}
1259		1740
1260	# and all this just because we cannot iterate over	1741	# and all this just because we cannot iterate over
1261	# all maps in C++...	1742	# all maps in C++...
1262	sub change_all_map_light {	1743	sub change_all_map_light {
…		…
1264		1745
1265	$_->change_map_light ($change)	1746	$_->change_map_light ($change)
1266	for grep $_->outdoor, values %cf::MAP;	1747	for grep $_->outdoor, values %cf::MAP;
1267	}	1748	}
1268		1749
		1750	sub decay_objects {
		1751	my ($self) = @_;
		1752
		1753	return if $self->{deny_reset};
		1754
		1755	$self->do_decay_objects;
		1756	}
		1757
1269	sub unlink_save {	1758	sub unlink_save {
1270	my ($self) = @_;	1759	my ($self) = @_;
1271		1760
1272	utf8::encode (my $save = $self->save_path);	1761	utf8::encode (my $save = $self->save_path);
1273	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1762	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1276		1765
1277	sub load_header_from($) {	1766	sub load_header_from($) {
1278	my ($self, $path) = @_;	1767	my ($self, $path) = @_;
1279		1768
1280	utf8::encode $path;	1769	utf8::encode $path;
1281	aio_open $path, O_RDONLY, 0	1770	#aio_open $path, O_RDONLY, 0
1282	or return;	1771	# or return;
1283		1772
1284	$self->_load_header ($path)	1773	$self->_load_header ($path)
1285	or return;	1774	or return;
1286		1775
1287	$self->{load_path} = $path;	1776	$self->{load_path} = $path;
1288		1777
1289	1	1778	1
1290	}	1779	}
1291		1780
1292	sub load_orig {	1781	sub load_header_orig {
1293	my ($self) = @_;	1782	my ($self) = @_;
1294		1783
1295	$self->load_header_from ($self->load_path)	1784	$self->load_header_from ($self->load_path)
1296	}	1785	}
1297		1786
1298	sub load_temp {	1787	sub load_header_temp {
1299	my ($self) = @_;	1788	my ($self) = @_;
1300		1789
1301	$self->load_header_from ($self->save_path)	1790	$self->load_header_from ($self->save_path)
		1791	}
		1792
		1793	sub prepare_temp {
		1794	my ($self) = @_;
		1795
		1796	$self->last_access ((delete $self->{last_access})
		1797	|| $cf::RUNTIME); #d#
		1798	# safety
		1799	$self->{instantiate_time} = $cf::RUNTIME
		1800	if $self->{instantiate_time} > $cf::RUNTIME;
		1801	}
		1802
		1803	sub prepare_orig {
		1804	my ($self) = @_;
		1805
		1806	$self->{load_original} = 1;
		1807	$self->{instantiate_time} = $cf::RUNTIME;
		1808	$self->last_access ($cf::RUNTIME);
		1809	$self->instantiate;
1302	}	1810	}
1303		1811
1304	sub load_header {	1812	sub load_header {
1305	my ($self) = @_;	1813	my ($self) = @_;
1306		1814
1307	if ($self->load_temp) {	1815	if ($self->load_header_temp) {
1308	$self->last_access ((delete $self->{last_access})	1816	$self->prepare_temp;
1309	|| $cf::RUNTIME); #d#
1310	# safety
1311	$self->{instantiate_time} = $cf::RUNTIME
1312	if $self->{instantiate_time} > $cf::RUNTIME;
1313	} else {	1817	} else {
1314	$self->load_orig	1818	$self->load_header_orig
1315	or return;	1819	or return;
1316		1820	$self->prepare_orig;
1317	$self->{load_original} = 1;
1318	$self->{instantiate_time} = $cf::RUNTIME;
1319	$self->last_access ($cf::RUNTIME);
1320	$self->instantiate;
1321	}	1821	}
		1822
		1823	$self->{deny_reset} = 1
		1824	if $self->no_reset;
		1825
		1826	$self->default_region (cf::region::find_by_path $self->{path})
		1827	unless $self->default_region;
1322		1828
1323	1	1829	1
1324	}	1830	}
1325		1831
1326	sub find;	1832	sub find;
…		…
1339	$map->{last_save} = $cf::RUNTIME;	1845	$map->{last_save} = $cf::RUNTIME;
1340		1846
1341	$map->load_header	1847	$map->load_header
1342	or return;	1848	or return;
1343		1849
1344	if ($map->should_reset) {	1850	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1851	# doing this can freeze the server in a sync job, obviously
1345	$cf::WAIT_FOR_TICK->wait;	1852	#$cf::WAIT_FOR_TICK->wait;
1346	$map->reset;	1853	$map->reset;
1347	undef $guard;	1854	undef $guard;
1348	$map = find $path	1855	return find $path;
1349	or return;
1350	}	1856	}
1351		1857
1352	$cf::MAP{$path} = $map	1858	$cf::MAP{$path} = $map
1353	}	1859	}
1354	}	1860	}
		1861
		1862	sub pre_load { }
		1863	sub post_load { }
1355		1864
1356	sub load {	1865	sub load {
1357	my ($self) = @_;	1866	my ($self) = @_;
1358		1867
		1868	local $self->{deny_reset} = 1; # loading can take a long time
		1869
1359	my $path = $self->{path};	1870	my $path = $self->{path};
		1871
		1872	{
1360	my $guard = cf::lock_acquire "map_load:$path";	1873	my $guard = cf::lock_acquire "map_load:$path";
1361		1874
1362	return if $self->in_memory != cf::MAP_SWAPPED;	1875	return if $self->in_memory != cf::MAP_SWAPPED;
1363		1876
1364	$self->in_memory (cf::MAP_LOADING);	1877	$self->in_memory (cf::MAP_LOADING);
1365		1878
1366	$self->alloc;	1879	$self->alloc;
1367	$self->_load_objects ($self->{load_path}, 1)
1368	or return;
1369		1880
1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1881	$self->pre_load;
1371	if delete $self->{load_original};
1372
1373	if (my $uniq = $self->uniq_path) {
1374	utf8::encode $uniq;
1375	if (aio_open $uniq, O_RDONLY, 0) {
1376	$self->clear_unique_items;
1377	$self->_load_objects ($uniq, 0);
1378	}
1379	}
1380
1381	Coro::cede;
1382
1383	# now do the right thing for maps
1384	$self->link_multipart_objects;
1385
1386	unless ($self->{deny_activate}) {
1387	$self->decay_objects;
1388	$self->fix_auto_apply;
1389	$self->update_buttons;
1390	Coro::cede;	1882	Coro::cede;
1391	$self->set_darkness_map;	1883
		1884	$self->_load_objects ($self->{load_path}, 1)
		1885	or return;
		1886
		1887	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1888	if delete $self->{load_original};
		1889
		1890	if (my $uniq = $self->uniq_path) {
		1891	utf8::encode $uniq;
		1892	if (aio_open $uniq, O_RDONLY, 0) {
		1893	$self->clear_unique_items;
		1894	$self->_load_objects ($uniq, 0);
		1895	}
		1896	}
		1897
		1898	Coro::cede;
		1899	# now do the right thing for maps
		1900	$self->link_multipart_objects;
1392	$self->difficulty ($self->estimate_difficulty)	1901	$self->difficulty ($self->estimate_difficulty)
1393	unless $self->difficulty;	1902	unless $self->difficulty;
1394	Coro::cede;	1903	Coro::cede;
		1904
		1905	unless ($self->{deny_activate}) {
		1906	$self->decay_objects;
		1907	$self->fix_auto_apply;
		1908	$self->update_buttons;
		1909	Coro::cede;
		1910	$self->set_darkness_map;
		1911	Coro::cede;
1395	$self->activate;	1912	$self->activate;
1396	}	1913	}
1397		1914
1398	$self->in_memory (cf::MAP_IN_MEMORY);	1915	$self->in_memory (cf::MAP_IN_MEMORY);
		1916	}
		1917
		1918	$self->post_load;
1399	}	1919	}
1400		1920
1401	sub customise_for {	1921	sub customise_for {
1402	my ($self, $ob) = @_;	1922	my ($self, $ob) = @_;
1403		1923
1404	return find "~" . $ob->name . "/" . $self->{path}	1924	return find "~" . $ob->name . "/" . $self->{path}
1405	if $self->per_player;	1925	if $self->per_player;
		1926
		1927	# return find "?party/" . $ob->name . "/" . $self->{path}
		1928	# if $self->per_party;
1406		1929
1407	$self	1930	$self
1408	}	1931	}
1409		1932
1410	# find and load all maps in the 3x3 area around a map	1933	# find and load all maps in the 3x3 area around a map
…		…
1442		1965
1443	cf::sync_job { $map->load };	1966	cf::sync_job { $map->load };
1444	}	1967	}
1445		1968
1446	our %MAP_PREFETCH;	1969	our %MAP_PREFETCH;
1447	our $MAP_PREFETCHER = Coro::async {	1970	our $MAP_PREFETCHER = undef;
1448	while () {
1449	for my $path (keys %MAP_PREFETCH) {
1450	my $map = find $path
1451	or next;
1452	$map->load;
1453
1454	delete $MAP_PREFETCH{$path};
1455	}
1456	Coro::schedule;
1457	}
1458	};
1459		1971
1460	sub find_async {	1972	sub find_async {
1461	my ($path, $origin) = @_;	1973	my ($path, $origin) = @_;
1462		1974
1463	$path = normalise $path, $origin && $origin->{path};	1975	$path = normalise $path, $origin && $origin->{path};
1464		1976
1465	if (my $map = $cf::MAP{$path}) {	1977	if (my $map = $cf::MAP{$path}) {
1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1978	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1467	}	1979	}
1468		1980
1469	$MAP_PREFETCH{$path} = 0;	1981	undef $MAP_PREFETCH{$path};
		1982	$MAP_PREFETCHER ||= cf::async {
		1983	while (%MAP_PREFETCH) {
		1984	for my $path (keys %MAP_PREFETCH) {
		1985	if (my $map = find $path) {
		1986	$map->load;
		1987	}
		1988
		1989	delete $MAP_PREFETCH{$path};
		1990	}
		1991	}
		1992	undef $MAP_PREFETCHER;
		1993	};
1470	$MAP_PREFETCHER->ready;	1994	$MAP_PREFETCHER->prio (6);
1471		1995
1472	()	1996	()
1473	}	1997	}
1474		1998
1475	sub save {	1999	sub save {
…		…
1520		2044
1521	sub reset_at {	2045	sub reset_at {
1522	my ($self) = @_;	2046	my ($self) = @_;
1523		2047
1524	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1526	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1527		2050
1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1530		2053
…		…
1541	my ($self) = @_;	2064	my ($self) = @_;
1542		2065
1543	my $lock = cf::lock_acquire "map_data:$self->{path}";	2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2067
1545	return if $self->players;	2068	return if $self->players;
1546	return if $self->isa ("ext::map_per_player");#d#
1547		2069
1548	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
1549		2081
1550	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
1551		2083
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	$self->clear;	2084	$self->clear;
1554		2085
1555	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1556		2087
1557	$self->unlink_save;	2088	$self->unlink_save;
…		…
1576	$cf::MAP{$self->path} = $self;	2107	$cf::MAP{$self->path} = $self;
1577		2108
1578	$self->reset; # polite request, might not happen	2109	$self->reset; # polite request, might not happen
1579	}	2110	}
1580		2111
		2112	=item $maps = cf::map::tmp_maps
		2113
		2114	Returns an arrayref with all map paths of currently instantiated and saved
		2115	maps. May block.
		2116
		2117	=cut
		2118
		2119	sub tmp_maps() {
		2120	[
		2121	map {
		2122	utf8::decode $_;
		2123	/\.map$/
		2124	? normalise $_
		2125	: ()
		2126	} @{ aio_readdir $TMPDIR or [] }
		2127	]
		2128	}
		2129
		2130	=item $maps = cf::map::random_maps
		2131
		2132	Returns an arrayref with all map paths of currently instantiated and saved
		2133	random maps. May block.
		2134
		2135	=cut
		2136
		2137	sub random_maps() {
		2138	[
		2139	map {
		2140	utf8::decode $_;
		2141	/\.map$/
		2142	? normalise "?random/$_"
		2143	: ()
		2144	} @{ aio_readdir $RANDOMDIR or [] }
		2145	]
		2146	}
		2147
1581	=item cf::map::unique_maps	2148	=item cf::map::unique_maps
1582		2149
1583	Returns an arrayref of paths of all shared maps that have	2150	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	2151	instantiated unique items. May block.
1585		2152
1586	=cut	2153	=cut
1587		2154
1588	sub unique_maps() {	2155	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2156	[
1590	or return;	2157	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	2158	utf8::decode $_;
1596	next if /\.pst$/;
1597	next unless /^$PATH_SEP/o;
1598
1599	s/\.map$//;	2159	/\.map$/
1600	push @paths, $_;	2160	? normalise $_
		2161	: ()
		2162	} @{ aio_readdir $UNIQUEDIR or [] }
1601	}	2163	]
1602
1603	\@paths
1604	}	2164	}
1605		2165
1606	package cf;	2166	package cf;
1607		2167
1608	=back	2168	=back
…		…
1654		2214
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2215	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2216
1657	if ($self->{record_replies}) {	2217	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2218	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2219
1659	} else {	2220	} else {
		2221	my $pl = $self->contr;
		2222
		2223	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2224	my $diag = $pl->{npc_dialog};
		2225	$diag->{pl}->ext_reply (
		2226	$diag->{id},
		2227	msgtype => "reply",
		2228	msg => $diag->{pl}->expand_cfpod ($msg),
		2229	add_topics => []
		2230	);
		2231
		2232	} else {
1660	$msg = $npc->name . " says: $msg" if $npc;	2233	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2234	$self->message ($msg, $flags);
		2235	}
1662	}	2236	}
1663	}	2237	}
1664		2238
1665	=item $player_object->may ("access")	2239	=item $player_object->may ("access")
1666		2240
…		…
1699	=cut	2273	=cut
1700		2274
1701	sub link_map {	2275	sub link_map {
1702	unless ($LINK_MAP) {	2276	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2277	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2278	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2279	$LINK_MAP->load;
1706	}	2280	}
1707		2281
1708	$LINK_MAP	2282	$LINK_MAP
1709	}	2283	}
…		…
1714	$self->deactivate_recursive;	2288	$self->deactivate_recursive;
1715		2289
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2290	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2291
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2292	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2293	if $self->map && $self->map->{path} ne "{link}";
1720		2294
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2295	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2296	}
1723		2297
1724	sub cf::object::player::leave_link {	2298	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2299	my ($self, $map, $x, $y) = @_;
		2300
		2301	return unless $self->contr->active;
1726		2302
1727	my $link_pos = delete $self->{_link_pos};	2303	my $link_pos = delete $self->{_link_pos};
1728		2304
1729	unless ($map) {	2305	unless ($map) {
1730	# restore original map position	2306	# restore original map position
…		…
1748	$map->load;	2324	$map->load;
1749	$map->load_diag;	2325	$map->load_diag;
1750		2326
1751	return unless $self->contr->active;	2327	return unless $self->contr->active;
1752	$self->activate_recursive;	2328	$self->activate_recursive;
		2329
		2330	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2331	$self->enter_map ($map, $x, $y);
1754	}	2332	}
1755		2333
1756	cf::player->attach (	2334	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1757	on_logout => sub {
1758	my ($pl) = @_;
1759		2335
1760	# abort map switching before logout	2336	Moves the player to the given map-path and coordinates by first freezing
1761	if ($pl->ob->{_link_pos}) {	2337	her, loading and preparing them map, calling the provided $check callback
1762	cf::sync_job {	2338	that has to return the map if sucecssful, and then unfreezes the player on
1763	$pl->ob->leave_link	2339	the new (success) or old (failed) map position. In either case, $done will
1764	};	2340	be called at the end of this process.
1765	}
1766	},
1767	on_login => sub {
1768	my ($pl) = @_;
1769		2341
1770	# try to abort aborted map switching on player login :)
1771	# should happen only on crashes
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787
1788	=item $player_object->goto ($path, $x, $y)
1789
1790	=cut	2342	=cut
		2343
		2344	our $GOTOGEN;
1791		2345
1792	sub cf::object::player::goto {	2346	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2347	my ($self, $path, $x, $y, $check, $done) = @_;
		2348
		2349	# do generation counting so two concurrent goto's will be executed in-order
		2350	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2351
1795	$self->enter_link;	2352	$self->enter_link;
1796		2353
1797	(async {	2354	(async {
		2355	my $map = eval {
1798	my $map = cf::map::find $path;	2356	my $map = cf::map::find $path;
		2357
		2358	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2359	$map = $map->customise_for ($self);
1800		2360	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2361	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2362	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2363	}
1805		2364
		2365	$map
		2366	};
		2367
		2368	if ($@) {
		2369	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2370	LOG llevError | logBacktrace, Carp::longmess $@;
		2371	}
		2372
		2373	if ($gen == $self->{_goto_generation}) {
		2374	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2375	$self->leave_link ($map, $x, $y);
		2376	}
		2377
		2378	$done->() if $done;
1807	})->prio (1);	2379	})->prio (1);
1808	}	2380	}
1809		2381
1810	=item $player_object->enter_exit ($exit_object)	2382	=item $player_object->enter_exit ($exit_object)
1811		2383
…		…
1813		2385
1814	sub parse_random_map_params {	2386	sub parse_random_map_params {
1815	my ($spec) = @_;	2387	my ($spec) = @_;
1816		2388
1817	my $rmp = { # defaults	2389	my $rmp = { # defaults
1818	xsize => 10,	2390	xsize => (cf::rndm 15, 40),
1819	ysize => 10,	2391	ysize => (cf::rndm 15, 40),
		2392	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2393	#layout => string,
1820	};	2394	};
1821		2395
1822	for (split /\n/, $spec) {	2396	for (split /\n/, $spec) {
1823	my ($k, $v) = split /\s+/, $_, 2;	2397	my ($k, $v) = split /\s+/, $_, 2;
1824		2398
…		…
1828	$rmp	2402	$rmp
1829	}	2403	}
1830		2404
1831	sub prepare_random_map {	2405	sub prepare_random_map {
1832	my ($exit) = @_;	2406	my ($exit) = @_;
		2407
		2408	my $guard = cf::lock_acquire "exit_prepare:$exit";
1833		2409
1834	# all this does is basically replace the /! path by	2410	# all this does is basically replace the /! path by
1835	# a new random map path (?random/...) with a seed	2411	# a new random map path (?random/...) with a seed
1836	# that depends on the exit object	2412	# that depends on the exit object
1837		2413
1838	my $rmp = parse_random_map_params $exit->msg;	2414	my $rmp = parse_random_map_params $exit->msg;
1839		2415
1840	if ($exit->map) {	2416	if ($exit->map) {
1841	$rmp->{region} = $exit->map->region_name;	2417	$rmp->{region} = $exit->region->name;
1842	$rmp->{origin_map} = $exit->map->path;	2418	$rmp->{origin_map} = $exit->map->path;
1843	$rmp->{origin_x} = $exit->x;	2419	$rmp->{origin_x} = $exit->x;
1844	$rmp->{origin_y} = $exit->y;	2420	$rmp->{origin_y} = $exit->y;
1845	}	2421	}
1846		2422
1847	$rmp->{random_seed} ||= $exit->random_seed;	2423	$rmp->{random_seed} ||= $exit->random_seed;
1848		2424
1849	my $data = cf::to_json $rmp;	2425	my $data = cf::to_json $rmp;
1850	my $md5 = Digest::MD5::md5_hex $data;	2426	my $md5 = Digest::MD5::md5_hex $data;
		2427	my $meta = "$RANDOMDIR/$md5.meta";
1851		2428
1852	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2429	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853	aio_write $fh, 0, (length $data), $data, 0;	2430	aio_write $fh, 0, (length $data), $data, 0;
		2431	undef $fh;
		2432	aio_rename "$meta~", $meta;
1854		2433
1855	$exit->slaying ("?random/$md5");	2434	$exit->slaying ("?random/$md5");
1856	$exit->msg (undef);	2435	$exit->msg (undef);
1857	}	2436	}
1858	}	2437	}
…		…
1860	sub cf::object::player::enter_exit {	2439	sub cf::object::player::enter_exit {
1861	my ($self, $exit) = @_;	2440	my ($self, $exit) = @_;
1862		2441
1863	return unless $self->type == cf::PLAYER;	2442	return unless $self->type == cf::PLAYER;
1864		2443
		2444	if ($exit->slaying eq "/!") {
		2445	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2446	# the problem is that $exit might not survive long enough
		2447	# so it needs to be done right now, right here
		2448	cf::sync_job { prepare_random_map $exit };
		2449	}
		2450
		2451	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2452	my $hp = $exit->stats->hp;
		2453	my $sp = $exit->stats->sp;
		2454
1865	$self->enter_link;	2455	$self->enter_link;
		2456
		2457	# if exit is damned, update players death & WoR home-position
		2458	$self->contr->savebed ($slaying, $hp, $sp)
		2459	if $exit->flag (FLAG_DAMNED);
1866		2460
1867	(async {	2461	(async {
1868	$self->deactivate_recursive; # just to be sure	2462	$self->deactivate_recursive; # just to be sure
1869	unless (eval {	2463	unless (eval {
1870	prepare_random_map $exit	2464	$self->goto ($slaying, $hp, $sp);
1871	if $exit->slaying eq "/!";
1872
1873	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1874	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1875		2465
1876	1;	2466	1;
1877	}) {	2467	}) {
1878	$self->message ("Something went wrong deep within the crossfire server. "	2468	$self->message ("Something went wrong deep within the crossfire server. "
1879	. "I'll try to bring you back to the map you were before. "	2469	. "I'll try to bring you back to the map you were before. "
1880	. "Please report this to the dungeon master!",	2470	. "Please report this to the dungeon master!",
1881	cf::NDI_UNIQUE | cf::NDI_RED);	2471	cf::NDI_UNIQUE | cf::NDI_RED);
1882		2472
1883	warn "ERROR in enter_exit: $@";	2473	warn "ERROR in enter_exit: $@";
1884	$self->leave_link;	2474	$self->leave_link;
1885	}	2475	}
1886	})->prio (1);	2476	})->prio (1);
…		…
1899		2489
1900	sub cf::client::send_drawinfo {	2490	sub cf::client::send_drawinfo {
1901	my ($self, $text, $flags) = @_;	2491	my ($self, $text, $flags) = @_;
1902		2492
1903	utf8::encode $text;	2493	utf8::encode $text;
1904	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2494	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1905	}	2495	}
1906		2496
		2497	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2498
		2499	Send a drawinfo or msg packet to the client, formatting the msg for the
		2500	client if neccessary. C<$type> should be a string identifying the type of
		2501	the message, with C<log> being the default. If C<$color> is negative, suppress
		2502	the message unless the client supports the msg packet.
		2503
		2504	=cut
		2505
		2506	sub cf::client::send_msg {
		2507	my ($self, $channel, $msg, $color, @extra) = @_;
		2508
		2509	$msg = $self->pl->expand_cfpod ($msg);
		2510
		2511	$color &= ~cf::NDI_UNIQUE; # just in case...
		2512
		2513	if (ref $channel) {
		2514	# send meta info to client, if not yet sent
		2515	unless (exists $self->{channel}{$channel->{id}}) {
		2516	$self->{channel}{$channel->{id}} = $channel;
		2517	$self->ext_event (channel_info => %$channel);
		2518	}
		2519
		2520	$channel = $channel->{id};
		2521	}
		2522
		2523	return unless @extra || length $msg;
		2524
		2525	if ($self->can_msg) {
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2527	} else {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	if ($color >= 0) {
		2539	if (0 && $msg =~ /\[/) {
		2540	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2541	} else {
		2542	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2543	$self->send_packet ("drawinfo $color $msg")
		2544	}
		2545	}
		2546	}
		2547	}
		2548
		2549	=item $client->ext_event ($type, %msg)
		2550
		2551	Sends an ext event to the client.
		2552
		2553	=cut
		2554
		2555	sub cf::client::ext_event($$%) {
		2556	my ($self, $type, %msg) = @_;
		2557
		2558	return unless $self->extcmd;
		2559
		2560	$msg{msgtype} = "event_$type";
		2561	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2562	}
1907		2563
1908	=item $success = $client->query ($flags, "text", \&cb)	2564	=item $success = $client->query ($flags, "text", \&cb)
1909		2565
1910	Queues a query to the client, calling the given callback with	2566	Queues a query to the client, calling the given callback with
1911	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2567	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1912	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2568	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1913		2569
1914	Queries can fail, so check the return code. Or don't, as queries will become	2570	Queries can fail, so check the return code. Or don't, as queries will
1915	reliable at some point in the future.	2571	become reliable at some point in the future.
1916		2572
1917	=cut	2573	=cut
1918		2574
1919	sub cf::client::query {	2575	sub cf::client::query {
1920	my ($self, $flags, $text, $cb) = @_;	2576	my ($self, $flags, $text, $cb) = @_;
…		…
1928	utf8::encode $text;	2584	utf8::encode $text;
1929	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2585	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1930		2586
1931	$self->send_packet ($self->{query_queue}[0][0])	2587	$self->send_packet ($self->{query_queue}[0][0])
1932	if @{ $self->{query_queue} } == 1;	2588	if @{ $self->{query_queue} } == 1;
		2589
		2590	1
1933	}	2591	}
1934		2592
1935	cf::client->attach (	2593	cf::client->attach (
		2594	on_connect => sub {
		2595	my ($ns) = @_;
		2596
		2597	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2598	},
1936	on_reply => sub {	2599	on_reply => sub {
1937	my ($ns, $msg) = @_;	2600	my ($ns, $msg) = @_;
1938		2601
1939	# this weird shuffling is so that direct followup queries	2602	# this weird shuffling is so that direct followup queries
1940	# get handled first	2603	# get handled first
1941	my $queue = delete $ns->{query_queue}	2604	my $queue = delete $ns->{query_queue}
1942	or return; # be conservative, not sure how that can happen, but we saw a crash here	2605	or return; # be conservative, not sure how that can happen, but we saw a crash here
1943		2606
1944	(shift @$queue)->[1]->($msg);	2607	(shift @$queue)->[1]->($msg);
		2608	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1945		2609
1946	push @{ $ns->{query_queue} }, @$queue;	2610	push @{ $ns->{query_queue} }, @$queue;
1947		2611
1948	if (@{ $ns->{query_queue} } == @$queue) {	2612	if (@{ $ns->{query_queue} } == @$queue) {
1949	if (@$queue) {	2613	if (@$queue) {
…		…
1951	} else {	2615	} else {
1952	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2616	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1953	}	2617	}
1954	}	2618	}
1955	},	2619	},
		2620	on_exticmd => sub {
		2621	my ($ns, $buf) = @_;
		2622
		2623	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2624
		2625	if (ref $msg) {
		2626	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2627	if (my %reply = $cb->($ns, $msg)) {
		2628	$reply{msgid} = $msg->{msgid};
		2629	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2630	}
		2631	}
		2632	} else {
		2633	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2634	}
		2635
		2636	cf::override;
		2637	},
1956	);	2638	);
1957		2639
1958	=item $client->async (\&cb)	2640	=item $client->async (\&cb)
1959		2641
1960	Create a new coroutine, running the specified callback. The coroutine will	2642	Create a new coroutine, running the specified callback. The coroutine will
…		…
2007		2689
2008	# here we export the classes and methods available to script code	2690	# here we export the classes and methods available to script code
2009		2691
2010	=pod	2692	=pod
2011		2693
2012	The following fucntions and emthods are available within a safe environment:	2694	The following functions and methods are available within a safe environment:
2013		2695
2014	cf::object contr pay_amount pay_player map	2696	cf::object
		2697	contr pay_amount pay_player map x y force_find force_add
		2698	insert remove
		2699
2015	cf::object::player player	2700	cf::object::player
2016	cf::player peaceful	2701	player
2017	cf::map trigger	2702
		2703	cf::player
		2704	peaceful
		2705
		2706	cf::map
		2707	trigger
2018		2708
2019	=cut	2709	=cut
2020		2710
2021	for (	2711	for (
2022	["cf::object" => qw(contr pay_amount pay_player map)],	2712	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2713	insert remove)],
2023	["cf::object::player" => qw(player)],	2714	["cf::object::player" => qw(player)],
2024	["cf::player" => qw(peaceful)],	2715	["cf::player" => qw(peaceful)],
2025	["cf::map" => qw(trigger)],	2716	["cf::map" => qw(trigger)],
2026	) {	2717	) {
2027	no strict 'refs';	2718	no strict 'refs';
…		…
2098	=back	2789	=back
2099		2790
2100	=cut	2791	=cut
2101		2792
2102	#############################################################################	2793	#############################################################################
		2794	# the server's init and main functions
2103		2795
2104	=head2 EXTENSION DATABASE SUPPORT	2796	sub load_facedata($) {
		2797	my ($path) = @_;
2105		2798
2106	Crossfire maintains a very simple database for extension use. It can	2799	warn "loading facedata from $path\n";
2107	currently store anything that can be serialised using Storable, which
2108	excludes objects.
2109		2800
2110	The parameter C<$family> should best start with the name of the extension	2801	my $facedata;
2111	using it, it should be unique.	2802	0 < aio_load $path, $facedata
		2803	or die "$path: $!";
2112		2804
2113	=over 4	2805	$facedata = Coro::Storable::thaw $facedata;
2114		2806
2115	=item $hashref = cf::db_get $family	2807	$facedata->{version} == 2
		2808	or cf::cleanup "$path: version mismatch, cannot proceed.";
2116		2809
2117	Return a hashref for use by the extension C<$family>, which can be
2118	modified. After modifications, you have to call C<cf::db_dirty> or
2119	C<cf::db_sync>.
2120
2121	=item $value = cf::db_get $family => $key
2122
2123	Returns a single value from the database
2124
2125	=item cf::db_put $family => $hashref
2126
2127	Stores the given family hashref into the database. Updates are delayed, if
2128	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_put $family => $key => $value
2131
2132	Stores the given C<$value> in the family hash. Updates are delayed, if you
2133	want the data to be synced to disk immediately, use C<cf::db_sync>.
2134
2135	=item cf::db_dirty
2136
2137	Marks the database as dirty, to be updated at a later time.
2138
2139	=item cf::db_sync
2140
2141	Immediately write the database to disk I<if it is dirty>.
2142
2143	=cut
2144
2145	our $DB;
2146
2147	{
2148	my $path = cf::localdir . "/database.pst";
2149
2150	sub db_load() {
2151	$DB = stat $path ? Storable::retrieve $path : { };
2152	}	2810	{
		2811	my $faces = $facedata->{faceinfo};
2153		2812
2154	my $pid;	2813	while (my ($face, $info) = each %$faces) {
		2814	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2815	cf::face::set_visibility $idx, $info->{visibility};
		2816	cf::face::set_magicmap $idx, $info->{magicmap};
		2817	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2818	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2155		2819
2156	sub db_save() {	2820	cf::cede_to_tick;
2157	waitpid $pid, 0 if $pid;
2158	if (0 == ($pid = fork)) {
2159	$DB->{_meta}{version} = 1;
2160	Storable::nstore $DB, "$path~";
2161	rename "$path~", $path;
2162	cf::_exit 0 if defined $pid;
2163	}
2164	}
2165
2166	my $dirty;
2167
2168	sub db_sync() {
2169	db_save if $dirty;
2170	undef $dirty;
2171	}
2172
2173	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2174	db_sync;
2175	});
2176
2177	sub db_dirty() {
2178	$dirty = 1;
2179	$idle->start;
2180	}
2181
2182	sub db_get($;$) {
2183	@_ >= 2
2184	? $DB->{$_[0]}{$_[1]}
2185	: ($DB->{$_[0]} ||= { })
2186	}
2187
2188	sub db_put($$;$) {
2189	if (@_ >= 3) {
2190	$DB->{$_[0]}{$_[1]} = $_[2];
2191	} else {
2192	$DB->{$_[0]} = $_[1];
2193	}
2194	db_dirty;
2195	}
2196
2197	cf::global->attach (
2198	prio => 10000,
2199	on_cleanup => sub {
2200	db_sync;
2201	},	2821	}
2202	);
2203	}
2204		2822
2205	#############################################################################	2823	while (my ($face, $info) = each %$faces) {
2206	# the server's main()	2824	next unless $info->{smooth};
		2825	my $idx = cf::face::find $face
		2826	or next;
		2827	if (my $smooth = cf::face::find $info->{smooth}) {
		2828	cf::face::set_smooth $idx, $smooth;
		2829	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2830	} else {
		2831	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2832	}
		2833
		2834	cf::cede_to_tick;
		2835	}
		2836	}
		2837
		2838	{
		2839	my $anims = $facedata->{animinfo};
		2840
		2841	while (my ($anim, $info) = each %$anims) {
		2842	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2843	cf::cede_to_tick;
		2844	}
		2845
		2846	cf::anim::invalidate_all; # d'oh
		2847	}
		2848
		2849	{
		2850	# TODO: for gcfclient pleasure, we should give resources
		2851	# that gcfclient doesn't grok a >10000 face index.
		2852	my $res = $facedata->{resource};
		2853	my $enc = JSON::XS->new->utf8->canonical;
		2854
		2855	while (my ($name, $info) = each %$res) {
		2856	my $meta = $enc->encode ({
		2857	name => $name,
		2858	type => $info->{type},
		2859	copyright => $info->{copyright}, #TODO#
		2860	});
		2861
		2862	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2863
		2864	if ($name =~ /\.jpg$/) {
		2865	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2866	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2867	} else {
		2868	my $data = pack "(w/a*)*", $meta, $info->{data};
		2869	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2870
		2871	cf::face::set_type $idx, 1;
		2872	cf::face::set_data $idx, 0, $data, $chk;
		2873	}
		2874
		2875	cf::cede_to_tick;
		2876	}
		2877	}
		2878
		2879	1
		2880	}
		2881
		2882	sub reload_regions {
		2883	load_resource_file "$MAPDIR/regions"
		2884	or die "unable to load regions file\n";
		2885
		2886	for (cf::region::list) {
		2887	$_->{match} = qr/$_->{match}/
		2888	if exists $_->{match};
		2889	}
		2890	}
		2891
		2892	sub reload_facedata {
		2893	load_facedata "$DATADIR/facedata"
		2894	or die "unable to load facedata\n";
		2895	}
		2896
		2897	sub reload_archetypes {
		2898	load_resource_file "$DATADIR/archetypes"
		2899	or die "unable to load archetypes\n";
		2900	#d# NEED to laod twice to resolve forward references
		2901	# this really needs to be done in an extra post-pass
		2902	# (which needs to be synchronous, so solve it differently)
		2903	load_resource_file "$DATADIR/archetypes"
		2904	or die "unable to load archetypes\n";
		2905	}
		2906
		2907	sub reload_treasures {
		2908	load_resource_file "$DATADIR/treasures"
		2909	or die "unable to load treasurelists\n";
		2910	}
		2911
		2912	sub reload_resources {
		2913	warn "reloading resource files...\n";
		2914
		2915	reload_regions;
		2916	reload_facedata;
		2917	#reload_archetypes;#d#
		2918	reload_archetypes;
		2919	reload_treasures;
		2920
		2921	warn "finished reloading resource files\n";
		2922	}
		2923
		2924	sub init {
		2925	reload_resources;
		2926	}
2207		2927
2208	sub cfg_load {	2928	sub cfg_load {
2209	open my $fh, "<:utf8", cf::confdir . "/config"	2929	open my $fh, "<:utf8", "$CONFDIR/config"
2210	or return;	2930	or return;
2211		2931
2212	local $/;	2932	local $/;
2213	*CFG = YAML::Syck::Load <$fh>;	2933	*CFG = YAML::Syck::Load <$fh>;
2214		2934
…		…
2228		2948
2229	sub main {	2949	sub main {
2230	# we must not ever block the main coroutine	2950	# we must not ever block the main coroutine
2231	local $Coro::idle = sub {	2951	local $Coro::idle = sub {
2232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2952	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2953	(async {
2233	async { Event::one_event };	2954	Event::one_event;
		2955	})->prio (Coro::PRIO_MAX);
2234	};	2956	};
2235		2957
2236	cfg_load;	2958	cfg_load;
2237	db_load;	2959	db_init;
2238	load_extensions;	2960	load_extensions;
		2961
		2962	$TICK_WATCHER->start;
2239	Event::loop;	2963	Event::loop;
2240	}	2964	}
2241		2965
2242	#############################################################################	2966	#############################################################################
2243	# initialisation and cleanup	2967	# initialisation and cleanup
2244		2968
2245	# install some emergency cleanup handlers	2969	# install some emergency cleanup handlers
2246	BEGIN {	2970	BEGIN {
2247	for my $signal (qw(INT HUP TERM)) {	2971	for my $signal (qw(INT HUP TERM)) {
2248	Event->signal (	2972	Event->signal (
		2973	reentrant => 0,
2249	data => WF_AUTOCANCEL,	2974	data => WF_AUTOCANCEL,
2250	signal => $signal,	2975	signal => $signal,
		2976	prio => 0,
2251	cb => sub {	2977	cb => sub {
2252	cf::cleanup "SIG$signal";	2978	cf::cleanup "SIG$signal";
2253	},	2979	},
2254	);	2980	);
2255	}	2981	}
		2982	}
		2983
		2984	sub write_runtime {
		2985	my $runtime = "$LOCALDIR/runtime";
		2986
		2987	# first touch the runtime file to show we are still running:
		2988	# the fsync below can take a very very long time.
		2989
		2990	IO::AIO::aio_utime $runtime, undef, undef;
		2991
		2992	my $guard = cf::lock_acquire "write_runtime";
		2993
		2994	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2995	or return;
		2996
		2997	my $value = $cf::RUNTIME + 90 + 10;
		2998	# 10 is the runtime save interval, for a monotonic clock
		2999	# 60 allows for the watchdog to kill the server.
		3000
		3001	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3002	and return;
		3003
		3004	# always fsync - this file is important
		3005	aio_fsync $fh
		3006	and return;
		3007
		3008	# touch it again to show we are up-to-date
		3009	aio_utime $fh, undef, undef;
		3010
		3011	close $fh
		3012	or return;
		3013
		3014	aio_rename "$runtime~", $runtime
		3015	and return;
		3016
		3017	warn "runtime file written.\n";
		3018
		3019	1
2256	}	3020	}
2257		3021
2258	sub emergency_save() {	3022	sub emergency_save() {
2259	my $freeze_guard = cf::freeze_mainloop;	3023	my $freeze_guard = cf::freeze_mainloop;
2260		3024
…		…
2277	my $map = $cf::MAP{$path} or next;	3041	my $map = $cf::MAP{$path} or next;
2278	$map->valid or next;	3042	$map->valid or next;
2279	$map->save;	3043	$map->save;
2280	}	3044	}
2281	warn "end emergency map save\n";	3045	warn "end emergency map save\n";
		3046
		3047	warn "begin emergency database checkpoint\n";
		3048	BDB::db_env_txn_checkpoint $DB_ENV;
		3049	warn "end emergency database checkpoint\n";
2282	};	3050	};
2283		3051
2284	warn "leave emergency perl save\n";	3052	warn "leave emergency perl save\n";
2285	}	3053	}
2286		3054
		3055	sub post_cleanup {
		3056	my ($make_core) = @_;
		3057
		3058	warn Carp::longmess "post_cleanup backtrace"
		3059	if $make_core;
		3060	}
		3061
2287	sub reload() {	3062	sub do_reload_perl() {
2288	# can/must only be called in main	3063	# can/must only be called in main
2289	if ($Coro::current != $Coro::main) {	3064	if ($Coro::current != $Coro::main) {
2290	warn "can only reload from main coroutine\n";	3065	warn "can only reload from main coroutine";
2291	return;	3066	return;
2292	}	3067	}
2293		3068
2294	warn "reloading...";	3069	warn "reloading...";
2295		3070
2296	warn "freezing server";	3071	warn "entering sync_job";
2297	my $guard = freeze_mainloop;	3072
		3073	cf::sync_job {
		3074	cf::write_runtime; # external watchdog should not bark
2298	cf::emergency_save;	3075	cf::emergency_save;
		3076	cf::write_runtime; # external watchdog should not bark
2299		3077
2300	warn "sync database to disk";	3078	warn "syncing database to disk";
2301	cf::db_sync;	3079	BDB::db_env_txn_checkpoint $DB_ENV;
2302	IO::AIO::flush;
2303		3080
2304	eval {
2305	# if anything goes wrong in here, we should simply crash as we already saved	3081	# if anything goes wrong in here, we should simply crash as we already saved
2306		3082
2307	warn "cancel all watchers";	3083	warn "cancelling all WF_AUTOCANCEL watchers";
2308	for (Event::all_watchers) {	3084	for (Event::all_watchers) {
2309	$_->cancel if $_->data & WF_AUTOCANCEL;	3085	$_->cancel if $_->data & WF_AUTOCANCEL;
2310	}	3086	}
2311		3087
		3088	warn "flushing outstanding aio requests";
		3089	for (;;) {
		3090	BDB::flush;
		3091	IO::AIO::flush;
		3092	Coro::cede;
		3093	last unless IO::AIO::nreqs || BDB::nreqs;
		3094	warn "iterate...";
		3095	}
		3096
		3097	++$RELOAD;
		3098
2312	warn "cancel all extension coros";	3099	warn "cancelling all extension coros";
2313	$_->cancel for values %EXT_CORO;	3100	$_->cancel for values %EXT_CORO;
2314	%EXT_CORO = ();	3101	%EXT_CORO = ();
2315		3102
2316	warn "remove commands";	3103	warn "removing commands";
2317	%COMMAND = ();	3104	%COMMAND = ();
2318		3105
2319	warn "remove ext commands";	3106	warn "removing ext/exti commands";
2320	%EXTCMD = ();	3107	%EXTCMD = ();
		3108	%EXTICMD = ();
2321		3109
2322	warn "unload/nuke all extensions";	3110	warn "unloading/nuking all extensions";
2323	for my $pkg (@EXTS) {	3111	for my $pkg (@EXTS) {
2324	warn "... unloading $pkg";	3112	warn "... unloading $pkg";
2325		3113
2326	if (my $cb = $pkg->can ("unload")) {	3114	if (my $cb = $pkg->can ("unload")) {
2327	eval {	3115	eval {
…		…
2332		3120
2333	warn "... nuking $pkg";	3121	warn "... nuking $pkg";
2334	Symbol::delete_package $pkg;	3122	Symbol::delete_package $pkg;
2335	}	3123	}
2336		3124
2337	warn "unload all perl modules loaded from $LIBDIR";	3125	warn "unloading all perl modules loaded from $LIBDIR";
2338	while (my ($k, $v) = each %INC) {	3126	while (my ($k, $v) = each %INC) {
2339	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3127	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2340		3128
2341	warn "removing <$k>";	3129	warn "... unloading $k";
2342	delete $INC{$k};	3130	delete $INC{$k};
2343		3131
2344	$k =~ s/\.pm$//;	3132	$k =~ s/\.pm$//;
2345	$k =~ s/\//::/g;	3133	$k =~ s/\//::/g;
2346		3134
…		…
2349	}	3137	}
2350		3138
2351	Symbol::delete_package $k;	3139	Symbol::delete_package $k;
2352	}	3140	}
2353		3141
2354	warn "get rid of safe::, as good as possible";	3142	warn "getting rid of safe::, as good as possible";
2355	Symbol::delete_package "safe::$_"	3143	Symbol::delete_package "safe::$_"
2356	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2357		3145
2358	warn "unload cf.pm \"a bit\"";	3146	warn "unloading cf.pm \"a bit\"";
2359	delete $INC{"cf.pm"};	3147	delete $INC{"cf.pm"};
		3148	delete $INC{"cf/pod.pm"};
2360		3149
2361	# don't, removes xs symbols, too,	3150	# don't, removes xs symbols, too,
2362	# and global variables created in xs	3151	# and global variables created in xs
2363	#Symbol::delete_package __PACKAGE__;	3152	#Symbol::delete_package __PACKAGE__;
2364		3153
		3154	warn "unload completed, starting to reload now";
		3155
2365	warn "reloading cf.pm";	3156	warn "reloading cf.pm";
2366	require cf;	3157	require cf;
2367	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3158	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2368		3159
2369	warn "load config and database again";	3160	warn "loading config and database again";
2370	cf::cfg_load;	3161	cf::cfg_load;
2371	cf::db_load;
2372		3162
2373	warn "load extensions";	3163	warn "loading extensions";
2374	cf::load_extensions;	3164	cf::load_extensions;
2375		3165
2376	warn "reattach attachments to objects/players";	3166	warn "reattaching attachments to objects/players";
2377	_global_reattach;	3167	_global_reattach; # objects, sockets
2378	warn "reattach attachments to maps";	3168	warn "reattaching attachments to maps";
2379	reattach $_ for values %MAP;	3169	reattach $_ for values %MAP;
2380	};	3170	warn "reattaching attachments to players";
		3171	reattach $_ for values %PLAYER;
2381		3172
2382	if ($@) {	3173	warn "leaving sync_job";
		3174
		3175	1
		3176	} or do {
2383	warn $@;	3177	warn $@;
2384	warn "error while reloading, exiting.";	3178	warn "error while reloading, exiting.";
2385	exit 1;	3179	exit 1;
2386	}	3180	};
2387		3181
2388	warn "reloaded";	3182	warn "reloaded";
2389	};	3183	};
2390		3184
		3185	our $RELOAD_WATCHER; # used only during reload
		3186
		3187	sub reload_perl() {
		3188	# doing reload synchronously and two reloads happen back-to-back,
		3189	# coro crashes during coro_state_free->destroy here.
		3190
		3191	$RELOAD_WATCHER ||= Event->timer (
		3192	reentrant => 0,
		3193	after => 0,
		3194	data => WF_AUTOCANCEL,
		3195	cb => sub {
		3196	do_reload_perl;
		3197	undef $RELOAD_WATCHER;
		3198	},
		3199	);
		3200	}
		3201
2391	register_command "reload" => sub {	3202	register_command "reload" => sub {
2392	my ($who, $arg) = @_;	3203	my ($who, $arg) = @_;
2393		3204
2394	if ($who->flag (FLAG_WIZ)) {	3205	if ($who->flag (FLAG_WIZ)) {
2395	$who->message ("start of reload.");
2396	reload;
2397	$who->message ("end of reload.");	3206	$who->message ("reloading server.");
		3207	async { reload_perl };
2398	}	3208	}
2399	};	3209	};
2400		3210
2401	unshift @INC, $LIBDIR;	3211	unshift @INC, $LIBDIR;
2402		3212
		3213	my $bug_warning = 0;
		3214
		3215	our @WAIT_FOR_TICK;
		3216	our @WAIT_FOR_TICK_BEGIN;
		3217
		3218	sub wait_for_tick {
		3219	return unless $TICK_WATCHER->is_active;
		3220	return if $Coro::current == $Coro::main;
		3221
		3222	my $signal = new Coro::Signal;
		3223	push @WAIT_FOR_TICK, $signal;
		3224	$signal->wait;
		3225	}
		3226
		3227	sub wait_for_tick_begin {
		3228	return unless $TICK_WATCHER->is_active;
		3229	return if $Coro::current == $Coro::main;
		3230
		3231	my $signal = new Coro::Signal;
		3232	push @WAIT_FOR_TICK_BEGIN, $signal;
		3233	$signal->wait;
		3234	}
		3235
		3236	my $min = 1e6;#d#
		3237	my $avg = 10;
2403	$TICK_WATCHER = Event->timer (	3238	$TICK_WATCHER = Event->timer (
2404	reentrant => 0,	3239	reentrant => 0,
		3240	parked => 1,
2405	prio => 0,	3241	prio => 0,
2406	at => $NEXT_TICK || $TICK,	3242	at => $NEXT_TICK || $TICK,
2407	data => WF_AUTOCANCEL,	3243	data => WF_AUTOCANCEL,
2408	cb => sub {	3244	cb => sub {
		3245	if ($Coro::current != $Coro::main) {
		3246	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3247	unless ++$bug_warning > 10;
		3248	return;
		3249	}
		3250
2409	$NOW = Event::time;	3251	$NOW = $tick_start = Event::time;
2410		3252
2411	cf::server_tick; # one server iteration	3253	cf::server_tick; # one server iteration
		3254
		3255	0 && sync_job {#d#
		3256	for(1..10) {
		3257	my $t = Event::time;
		3258	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3259	or die;
		3260
		3261	$map->width (50);
		3262	$map->height (50);
		3263	$map->alloc;
		3264	$map->_load_objects ("/tmp/x.map", 1);
		3265	my $t = Event::time - $t;
		3266
		3267	#next unless $t < 0.0013;#d#
		3268	if ($t < $min) {
		3269	$min = $t;
		3270	}
		3271	$avg = $avg * 0.99 + $t * 0.01;
		3272	}
		3273	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3274	exit 0;
		3275	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3276	};
		3277
2412	$RUNTIME += $TICK;	3278	$RUNTIME += $TICK;
2413	$NEXT_TICK += $TICK;	3279	$NEXT_TICK += $TICK;
2414		3280
2415	$WAIT_FOR_TICK->broadcast;	3281	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2416	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3282	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3283	Coro::async_pool {
		3284	write_runtime
		3285	or warn "ERROR: unable to write runtime file: $!";
		3286	};
		3287	}
		3288
		3289	# my $AFTER = Event::time;
		3290	# warn $AFTER - $NOW;#d#
		3291
		3292	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3293	$sig->send;
		3294	}
		3295	while (my $sig = shift @WAIT_FOR_TICK) {
		3296	$sig->send;
		3297	}
		3298
		3299	$NOW = Event::time;
2417		3300
2418	# if we are delayed by four ticks or more, skip them all	3301	# if we are delayed by four ticks or more, skip them all
2419	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3302	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2420		3303
2421	$TICK_WATCHER->at ($NEXT_TICK);	3304	$TICK_WATCHER->at ($NEXT_TICK);
2422	$TICK_WATCHER->start;	3305	$TICK_WATCHER->start;
		3306
		3307	$LOAD = ($NOW - $tick_start) / $TICK;
		3308	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3309
		3310	_post_tick;
		3311
		3312
2423	},	3313	},
2424	);	3314	);
2425		3315
		3316	{
		3317	BDB::max_poll_time $TICK * 0.1;
		3318	$BDB_POLL_WATCHER = Event->io (
		3319	reentrant => 0,
		3320	fd => BDB::poll_fileno,
		3321	poll => 'r',
		3322	prio => 0,
		3323	data => WF_AUTOCANCEL,
		3324	cb => \&BDB::poll_cb,
		3325	);
		3326	BDB::min_parallel 8;
		3327
		3328	BDB::set_sync_prepare {
		3329	my $status;
		3330	my $current = $Coro::current;
		3331	(
		3332	sub {
		3333	$status = $!;
		3334	$current->ready; undef $current;
		3335	},
		3336	sub {
		3337	Coro::schedule while defined $current;
		3338	$! = $status;
		3339	},
		3340	)
		3341	};
		3342
		3343	unless ($DB_ENV) {
		3344	$DB_ENV = BDB::db_env_create;
		3345
		3346	cf::sync_job {
		3347	eval {
		3348	BDB::db_env_open
		3349	$DB_ENV,
		3350	$BDBDIR,
		3351	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3352	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3353	0666;
		3354
		3355	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3356
		3357	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3358	$DB_ENV->set_lk_detect;
		3359	};
		3360
		3361	cf::cleanup "db_env_open(db): $@" if $@;
		3362	};
		3363	}
		3364	}
		3365
		3366	{
		3367	IO::AIO::min_parallel 8;
		3368
		3369	undef $Coro::AIO::WATCHER;
2426	IO::AIO::max_poll_time $TICK * 0.2;	3370	IO::AIO::max_poll_time $TICK * 0.1;
2427
2428	$AIO_POLL_WATCHER = Event->io (	3371	$AIO_POLL_WATCHER = Event->io (
2429	fd => IO::AIO::poll_fileno,	3372	reentrant => 0,
2430	poll => 'r',
2431	prio => 5,
2432	data => WF_AUTOCANCEL,
2433	cb => \&IO::AIO::poll_cb,
2434	);
2435
2436	$WRITE_RUNTIME_WATCHER = Event->timer (
2437	data => WF_AUTOCANCEL,	3373	data => WF_AUTOCANCEL,
2438	after => 0,	3374	fd => IO::AIO::poll_fileno,
2439	interval => 10,	3375	poll => 'r',
2440	cb => sub {	3376	prio => 6,
2441	(Coro::unblock_sub {	3377	cb => \&IO::AIO::poll_cb,
2442	write_runtime	3378	);
2443	or warn "ERROR: unable to write runtime file: $!";	3379	}
		3380
		3381	my $_log_backtrace;
		3382
		3383	sub _log_backtrace {
		3384	my ($msg, @addr) = @_;
		3385
		3386	$msg =~ s/\n//;
		3387
		3388	# limit the # of concurrent backtraces
		3389	if ($_log_backtrace < 2) {
		3390	++$_log_backtrace;
		3391	async {
		3392	my @bt = fork_call {
		3393	@addr = map { sprintf "%x", $_ } @addr;
		3394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3396	or die "addr2line: $!";
		3397
		3398	my @funcs;
		3399	my @res = <$fh>;
		3400	chomp for @res;
		3401	while (@res) {
		3402	my ($func, $line) = splice @res, 0, 2, ();
		3403	push @funcs, "[$func] $line";
		3404	}
		3405
		3406	@funcs
		3407	};
		3408
		3409	LOG llevInfo, "[ABT] $msg\n";
		3410	LOG llevInfo, "[ABT] $_\n" for @bt;
		3411	--$_log_backtrace;
2444	})->();	3412	};
		3413	} else {
		3414	LOG llevInfo, "[ABT] $msg\n";
		3415	LOG llevInfo, "[ABT] [suppressed]\n";
2445	},	3416	}
2446	);	3417	}
		3418
		3419	# load additional modules
		3420	use cf::pod;
2447		3421
2448	END { cf::emergency_save }	3422	END { cf::emergency_save }
2449		3423
2450	1	3424	1
2451		3425

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