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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.322 by root, Fri Jul 27 10:10:51 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 ();
		27	use Data::Dumper;
		28	use Digest::MD5;
20	use Fcntl;	29	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
23	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
24		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
25	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
26		43
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
29		46
30	$Coro::main->prio (2); # 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
31		48
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		50
34	our %COMMAND = ();	51	our %COMMAND = ();
35	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
37		59
		60	our $RELOAD; # number of reloads so far
38	our @EVENT;	61	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		62
41	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(!)
42	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	79	our $NEXT_TICK;
44	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;
45		85
46	our %CFG;	86	our %CFG;
47		87
48	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	89	our $RUNTIME;
50		90
		91	our %PLAYER; # all users
51	our %MAP; # all maps	92	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	94
		95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
54		101
55	binmode STDOUT;	102	binmode STDOUT;
56	binmode STDERR;	103	binmode STDERR;
57		104
58	# read virtual server time, if available	105	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
63	}	110	}
64		111
65	mkdir cf::localdir;	112	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		114
70	our %EXT_CORO;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
71		118
72	#############################################################################	119	#############################################################################
73		120
74	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
75		122
…		…
82	=item $cf::RUNTIME	129	=item $cf::RUNTIME
83		130
84	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
85	every server tick.	132	every server tick.
86		133
87	=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
88		137
89	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
90	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.
91		142
92	=item $cf::NOW	143	=item $cf::NOW
93		144
94	The time of the last (current) server tick.	145	The time of the last (current) server tick.
95		146
96	=item $cf::TICK	147	=item $cf::TICK
97		148
98	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.
99		160
100	=item %cf::CFG	161	=item %cf::CFG
101		162
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		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.
104		177
105	=back	178	=back
106		179
107	=cut	180	=cut
108		181
109	BEGIN {	182	BEGIN {
110	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	184	my $msg = join "", @_;
112	utf8::encode $msg;
113		185
114	$msg .= "\n"	186	$msg .= "\n"
115	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
116		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
117	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
118	};	193	};
119	}	194	}
120		195
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@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';
126	@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)
127		203
128	# 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
129	# within the Safe compartment.	205	# within the Safe compartment.
130	for my $pkg (qw(	206	for my $pkg (qw(
131	cf::global cf::attachable	207	cf::global cf::attachable
…		…
140		216
141	$Event::DIED = sub {	217	$Event::DIED = sub {
142	warn "error in event callback: @_";	218	warn "error in event callback: @_";
143	};	219	};
144		220
145	my %ext_pkg;	221	#############################################################################
146	my @exts;
147	my @hook;
148		222
149	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
150		224
151	=over 4	225	=over 4
152		226
153	=cut	227	=item dumpval $ref
154		228
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
156		249
157	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
158		251
159	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
160		253
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
169		255
170	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
171		257
172	=cut	258	=cut
173		259
174	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
176	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Lock names should begin with a unique identifier (for example, cf::map::find
		277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
		283	=cut
		284
		285	our %LOCK;
		286
		287	sub lock_wait($) {
		288	my ($key) = @_;
		289
		290	# wait for lock, if any
		291	while ($LOCK{$key}) {
		292	push @{ $LOCK{$key} }, $Coro::current;
		293	Coro::schedule;
		294	}
177	}	295	}
		296
		297	sub lock_acquire($) {
		298	my ($key) = @_;
		299
		300	# wait, to be sure we are not locked
		301	lock_wait $key;
		302
		303	$LOCK{$key} = [];
		304
		305	Coro::guard {
		306	# wake up all waiters, to be on the safe side
		307	$_->ready for @{ delete $LOCK{$key} };
		308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		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;
		381	}
		382
		383	=item cf::async { BLOCK }
		384
		385	Currently the same as Coro::async_pool, meaning you cannot use
		386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		387	thing you are allowed to do is call C<prio> on it.
		388
		389	=cut
		390
		391	BEGIN { *async = \&Coro::async_pool }
178		392
179	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
180		394
181	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)
182	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
183	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.
184		399
185	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
186	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
187	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
188	fast or be very important.	403	fast or be very important.
…		…
190	=cut	405	=cut
191		406
192	sub sync_job(&) {	407	sub sync_job(&) {
193	my ($job) = @_;	408	my ($job) = @_;
194		409
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
		413	# this is the main coro, too bad, we have to block
		414	# till the operation succeeds, freezing the server :/
		415
		416	# TODO: use suspend/resume instead
		417	# (but this is cancel-safe)
		418	my $freeze_guard = freeze_mainloop;
		419
		420	my $busy = 1;
		421	my @res;
		422
		423	(async {
		424	@res = eval { $job->() };
		425	warn $@ if $@;
		426	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
		428
209	while ($busy) {	429	while ($busy) {
210	Coro::cede_notself;	430	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	431	}
		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
		440	wantarray ? @res : $res[0]
213	} else {	441	} else {
214	$coro->join;	442	# we are in another coroutine, how wonderful, everything just works
		443
		444	$job->()
215	}	445	}
216
217	wantarray ? @res : $res[0]
218	}	446	}
219		447
220	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
221		449
222	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
224		452
225	=cut	453	=cut
226		454
227	sub coro(&) {	455	sub async_ext(&) {
228	my $cb = shift;	456	my $cb = shift;
229		457
230	my $coro; $coro = async {	458	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		459
237	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
239	});	462	});
240	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
241		464
242	$coro	465	$coro
243	}	466	}
244		467
		468	=item fork_call { }, $args
		469
		470	Executes the given code block with the given arguments in a seperate
		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.
		474
		475	=cut
		476
		477	sub _store_scalar {
		478	open my $fh, ">", \my $buf
		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
		481	close $fh;
		482
		483	$buf
		484	}
		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;
		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 });
		655	}
		656
245	=back	657	=back
246		658
247	=cut	659	=cut
248		660
249	#############################################################################	661	#############################################################################
…		…
254	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")
255	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
256		668
257	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>
258	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
259	crossfire+).	671	Crossfire TRT).
260		672
261	=over 4	673	=over 4
262		674
263	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
264		676
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	791	our @CB_MAP = ();
380		792
381	my %attachment;	793	my %attachment;
382		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
383	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
385		803
386	use sort 'stable';	804	use sort 'stable';
387		805
…		…
421	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
422		840
423	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
424	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
425	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
427		845
428	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
429	my $pkg = shift @arg;	847	my $pkg = shift @arg;
430		848
431	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
460	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
461	}	879	}
462		880
463	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
464	} else {	882	} else {
465	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
466	}	884	}
467		885
468	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
469	}	887	}
470		888
…		…
472	if (ref $_[0]) {	890	if (ref $_[0]) {
473	_object_attach @_;	891	_object_attach @_;
474	} else {	892	} else {
475	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
476	}	894	}
		895	_recalc_want;
477	};	896	};
478		897
479	# all those should be optimised	898	# all those should be optimised
480	sub cf::attachable::detach {	899	sub cf::attachable::detach {
481	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
484	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
485	reattach ($obj);	904	reattach ($obj);
486	} else {	905	} else {
487	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
488	}	907	}
		908	_recalc_want;
489	};	909	};
490		910
491	sub cf::attachable::attached {	911	sub cf::attachable::attached {
492	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
493		913
…		…
508	";	928	";
509	die if $@;	929	die if $@;
510	}	930	}
511		931
512	our $override;	932	our $override;
513	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?
514		934
515	sub override {	935	sub override {
516	$override = 1;	936	$override = 1;
517	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
518	}	938	}
519		939
520	sub do_invoke {	940	sub do_invoke {
521	my $event = shift;	941	my $event = shift;
522	my $callbacks = shift;	942	my $callbacks = shift;
523		943
524	@invoke_results = ();	944	@INVOKE_RESULTS = ();
525		945
526	local $override;	946	local $override;
527		947
528	for (@$callbacks) {	948	for (@$callbacks) {
529	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
546		966
547	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
548		968
549	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
550	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
551	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
552		972
553	=back	973	=back
554		974
555	=cut	975	=cut
556		976
557	#############################################################################	977	#############################################################################
558	# 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	}
559		990
560	sub reattach {	991	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		996
564	my $registry = $obj->registry;	997	my $registry = $obj->registry;
565		998
566	@$registry = ();	999	@$registry = ();
567		1000
…		…
614	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
615		1048
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	1053	close $fh;
621		1054
622	if (@$objs) {	1055	if (@$objs) {
623	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) {
624	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	1061	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
630	}	1063	}
631	} else {	1064	} else {
632	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
660	or return;	1093	or return;
661		1094
662	unless (aio_stat "$filename.pst") {	1095	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	1096	(aio_load "$filename.pst", $av) >= 0
664	or return;	1097	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
666	}	1099	}
667		1100
		1101	warn sprintf "loading %s (%d)\n",
		1102	$filename, length $data, scalar @{$av || []};
668	return ($data, $av);	1103	return ($data, $av);
669	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
670		1111
671	#############################################################################	1112	#############################################################################
672	# command handling &c	1113	# command handling &c
673		1114
674	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
687	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
688	}	1129	}
689		1130
690	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
691		1132
692	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.
693		1138
694	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
695	called.	1140	called.
696		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
697	=cut	1153	=cut
698		1154
699	sub register_extcmd {	1155	sub register_extcmd {
700	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
701		1157
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
706	}	1165	}
707		1166
708	cf::player->attach (	1167	cf::player->attach (
709	on_command => sub {	1168	on_command => sub {
710	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
719	cf::override;	1178	cf::override;
720	},	1179	},
721	on_extcmd => sub {	1180	on_extcmd => sub {
722	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
723		1182
724	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
725		1184
726	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
729	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
730	}	1195	if $reply;
731	}	1196	}
732	} else {	1197	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
734	}	1199	}
735		1200
736	cf::override;	1201	cf::override;
737	},	1202	},
738	);	1203	);
739		1204
		1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $pl = load_pl path $login
		1341	or return;
		1342	$cf::PLAYER{$login} = $pl
		1343	}
		1344	}
		1345	}
		1346
		1347	sub save($) {
		1348	my ($pl) = @_;
		1349
		1350	return if $pl->{deny_save};
		1351
		1352	my $path = path $pl;
		1353	my $guard = cf::lock_acquire "user_save:$path";
		1354
		1355	return if $pl->{deny_save};
		1356
		1357	aio_mkdir playerdir $pl, 0770;
		1358	$pl->{last_save} = $cf::RUNTIME;
		1359
		1360	$pl->save_pl ($path);
		1361	Coro::cede;
		1362	}
		1363
		1364	sub new($) {
		1365	my ($login) = @_;
		1366
		1367	my $self = create;
		1368
		1369	$self->ob->name ($login);
		1370	$self->{deny_save} = 1;
		1371
		1372	$cf::PLAYER{$login} = $self;
		1373
		1374	$self
		1375	}
		1376
		1377	=item $pl->quit_character
		1378
		1379	Nukes the player without looking back. If logged in, the connection will
		1380	be destroyed. May block for a long time.
		1381
		1382	=cut
		1383
		1384	sub quit_character {
		1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
		1388
		1389	$pl->{deny_save} = 1;
		1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1391
		1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1393	$pl->deactivate;
		1394	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1395	$pl->ns->destroy if $pl->ns;
		1396
		1397	my $path = playerdir $pl;
		1398	my $temp = "$path~$cf::RUNTIME~deleting~";
		1399	aio_rename $path, $temp;
		1400	delete $cf::PLAYER{$pl->ob->name};
		1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
		1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
		1423	}
		1424
		1425	=item cf::player::list_logins
		1426
		1427	Returns am arrayref of all valid playernames in the system, can take a
		1428	while and may block, so not sync_job-capable, ever.
		1429
		1430	=cut
		1431
		1432	sub list_logins {
		1433	my $dirs = aio_readdir $PLAYERDIR
		1434	or return [];
		1435
		1436	my @logins;
		1437
		1438	for my $login (@$dirs) {
		1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1440	aio_read $fh, 0, 512, my $buf, 0 or next;
		1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1442
		1443	utf8::decode $login;
		1444	push @logins, $login;
		1445	}
		1446
		1447	\@logins
		1448	}
		1449
		1450	=item $player->maps
		1451
		1452	Returns an arrayref of map paths that are private for this
		1453	player. May block.
		1454
		1455	=cut
		1456
		1457	sub maps($) {
		1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
		1462	my $files = aio_readdir playerdir $pl
		1463	or return;
		1464
		1465	my @paths;
		1466
		1467	for (@$files) {
		1468	utf8::decode $_;
		1469	next if /\.(?:pl|pst)$/;
		1470	next unless /^$PATH_SEP/o;
		1471
		1472	push @paths, cf::map::normalise "~$pl/$_";
		1473	}
		1474
		1475	\@paths
		1476	}
		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	if ($self->ns->extcmd == 2) {
		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
		1544	}
		1545
		1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
		1586
		1587	=back
		1588
		1589	=head3 cf::map
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::map;
		1596
		1597	use Fcntl;
		1598	use Coro::AIO;
		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
		1604	our $MAX_RESET = 3600;
		1605	our $DEFAULT_RESET = 3000;
		1606
		1607	sub generate_random_map {
		1608	my ($self, $rmp) = @_;
		1609	# mit "rum" bekleckern, nicht
		1610	$self->_create_random_map (
		1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1614	$rmp->{exit_on_final_map},
		1615	$rmp->{xsize}, $rmp->{ysize},
		1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
740	sub register {	1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
741	my ($base, $pkg) = @_;	1647	my ($self, $merge) = @_;
742		1648
743	#TODO	1649	# we have to keep some variables in memory intact
744	}	1650	local $self->{path};
		1651	local $self->{load_path};
745		1652
746	sub load_extension {	1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
747	my ($path) = @_;	1657	my ($path, $base) = @_;
748		1658
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1659	$path = "$path"; # make sure its a string
750	my $base = $1;
751	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";
754		1660
755	warn "loading '$path' into '$pkg'\n";	1661	$path =~ s/\.map$//;
756		1662
757	open my $fh, "<:utf8", $path	1663	# map plan:
758	or die "$path: $!";	1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
759		1671
760	my $source =	1672	$path =~ s/$PATH_SEP/\//go;
761	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })
764	. "\n};\n1";
765		1673
766	eval $source	1674	# treat it as relative path if it starts with
767	or die $@ ? "$path: $@\n"	1675	# something that looks reasonable
768	: "extension disabled.\n";	1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
769		1678
770	push @exts, $pkg;	1679	$base =~ s{[^/]+/?$}{};
771	$ext_pkg{$base} = $pkg;	1680	$path = "$base/$path";
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	1681	}
789		1682
790	# remove commands	1683	for ($path) {
791	for my $name (keys %COMMAND) {	1684	redo if s{//}{/};
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
793		1688
794	if (@cb) {	1689	$path
795	$COMMAND{$name} = \@cb;	1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
		1750	}
		1751
		1752	# and all this just because we cannot iterate over
		1753	# all maps in C++...
		1754	sub change_all_map_light {
		1755	my ($change) = @_;
		1756
		1757	$_->change_map_light ($change)
		1758	for grep $_->outdoor, values %cf::MAP;
		1759	}
		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
		1777	sub load_header_from($) {
		1778	my ($self, $path) = @_;
		1779
		1780	utf8::encode $path;
		1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
		1785	or return;
		1786
		1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
796	} else {	1828	} else {
797	delete $COMMAND{$name};	1829	$self->load_header_orig
798	}	1830	or return;
		1831	$self->prepare_orig;
		1832	}
		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
		1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
		1839
799	}	1840	1
		1841	}
800		1842
801	# remove extcmds	1843	sub find;
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1844	sub find {
803	delete $EXTCMD{$name};	1845	my ($path, $origin) = @_;
		1846
		1847	$path = normalise $path, $origin && $origin->path;
		1848
		1849	cf::lock_wait "map_find:$path";
		1850
		1851	$cf::MAP{$path} || do {
		1852	my $guard = cf::lock_acquire "map_find:$path";
		1853	my $map = new_from_path cf::map $path
		1854	or return;
		1855
		1856	$map->{last_save} = $cf::RUNTIME;
		1857
		1858	$map->load_header
		1859	or return;
		1860
		1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
		1864	$map->reset;
		1865	undef $guard;
		1866	return find $path;
		1867	}
		1868
		1869	$cf::MAP{$path} = $map
		1870	}
		1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
		1875
		1876	sub load {
		1877	my ($self) = @_;
		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
		1881	my $path = $self->{path};
		1882
804	}	1883	{
		1884	my $guard = cf::lock_acquire "map_load:$path";
805		1885
806	if (my $cb = $pkg->can ("unload")) {	1886	return if $self->in_memory != cf::MAP_SWAPPED;
807	eval {	1887
808	$cb->($pkg);	1888	$self->in_memory (cf::MAP_LOADING);
		1889
		1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
		1895	$self->_load_objects ($self->{load_path}, 1)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	if (aio_open $uniq, O_RDONLY, 0) {
		1904	$self->clear_unique_items;
		1905	$self->_load_objects ($uniq, 0);
809	1	1906	}
810	} or warn "$pkg unloaded, but with errors: $@";	1907	}
811	}
812		1908
813	Symbol::delete_package $pkg;	1909	Coro::cede;
814	}	1910	# now do the right thing for maps
		1911	$self->link_multipart_objects;
		1912	$self->difficulty ($self->estimate_difficulty)
		1913	unless $self->difficulty;
		1914	Coro::cede;
815		1915
816	sub load_extensions {	1916	unless ($self->{deny_activate}) {
817	for my $ext (<$LIBDIR/*.ext>) {	1917	$self->decay_objects;
818	next unless -r $ext;	1918	$self->fix_auto_apply;
819	eval {	1919	$self->update_buttons;
820	load_extension $ext;	1920	Coro::cede;
821	1	1921	$self->set_darkness_map;
822	} or warn "$ext not loaded: $@";	1922	Coro::cede;
823	}	1923	$self->activate;
824	}	1924	}
825		1925
826	#############################################################################	1926	$self->in_memory (cf::MAP_IN_MEMORY);
827	# load/save/clean perl data associated with a map	1927	}
828		1928
829	*cf::mapsupport::on_clean = sub {	1929	$self->post_load;
		1930	}
		1931
		1932	sub customise_for {
		1933	my ($self, $ob) = @_;
		1934
		1935	return find "~" . $ob->name . "/" . $self->{path}
		1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
		1941	$self
		1942	}
		1943
		1944	# find and load all maps in the 3x3 area around a map
		1945	sub load_diag {
830	my ($map) = @_;	1946	my ($map) = @_;
831		1947
832	my $path = $map->tmpname;	1948	my @diag; # diagonal neighbours
833	defined $path or return;
834		1949
835	unlink "$path.pst";	1950	for (0 .. 3) {
836	};	1951	my $neigh = $map->tile_path ($_)
		1952	or next;
		1953	$neigh = find $neigh, $map
		1954	or next;
		1955	$neigh->load;
837		1956
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1957	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1958	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1959	}
839		1960
840	#############################################################################	1961	for (@diag) {
841	# load/save perl data associated with player->ob objects	1962	my $neigh = find @$_
842		1963	or next;
843	sub all_objects(@) {	1964	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1965	}
845	}	1966	}
846		1967
847	# TODO: compatibility cruft, remove when no longer needed	1968	sub find_sync {
848	cf::player->attach (	1969	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1970
852	for my $o (all_objects $pl->ob) {	1971	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1972	}
854	$o->set_ob_key_value ("_perl_data");
855		1973
856	%$o = %{ Storable::thaw pack "H*", $value };	1974	sub do_load_sync {
		1975	my ($map) = @_;
		1976
		1977	cf::sync_job { $map->load };
		1978	}
		1979
		1980	our %MAP_PREFETCH;
		1981	our $MAP_PREFETCHER = undef;
		1982
		1983	sub find_async {
		1984	my ($path, $origin) = @_;
		1985
		1986	$path = normalise $path, $origin && $origin->{path};
		1987
		1988	if (my $map = $cf::MAP{$path}) {
		1989	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1990	}
		1991
		1992	undef $MAP_PREFETCH{$path};
		1993	$MAP_PREFETCHER ||= cf::async {
		1994	while (%MAP_PREFETCH) {
		1995	for my $path (keys %MAP_PREFETCH) {
		1996	if (my $map = find $path) {
		1997	$map->load;
		1998	}
		1999
		2000	delete $MAP_PREFETCH{$path};
857	}	2001	}
858	}	2002	}
		2003	undef $MAP_PREFETCHER;
		2004	};
		2005	$MAP_PREFETCHER->prio (6);
		2006
		2007	()
		2008	}
		2009
		2010	sub save {
		2011	my ($self) = @_;
		2012
		2013	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2014
		2015	$self->{last_save} = $cf::RUNTIME;
		2016
		2017	return unless $self->dirty;
		2018
		2019	my $save = $self->save_path; utf8::encode $save;
		2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2021
		2022	$self->{load_path} = $save;
		2023
		2024	return if $self->{deny_save};
		2025
		2026	local $self->{last_access} = $self->last_access;#d#
		2027
		2028	cf::async {
		2029	$_->contr->save for $self->players;
		2030	};
		2031
		2032	if ($uniq) {
		2033	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2034	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2035	} else {
		2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	2037	}
860	);	2038	}
861		2039
862	#############################################################################	2040	sub swap_out {
		2041	my ($self) = @_;
863		2042
864	=head2 CORE EXTENSIONS	2043	# save first because save cedes
		2044	$self->save;
865		2045
866	Functions and methods that extend core crossfire objects.	2046	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		2047
868	=head3 cf::player	2048	return if $self->players;
		2049	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2050	return if $self->{deny_save};
		2051
		2052	$self->clear;
		2053	$self->in_memory (cf::MAP_SWAPPED);
		2054	}
		2055
		2056	sub reset_at {
		2057	my ($self) = @_;
		2058
		2059	# TODO: safety, remove and allow resettable per-player maps
		2060	return 1e99 if $self->{deny_reset};
		2061
		2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2064
		2065	$time + $to
		2066	}
		2067
		2068	sub should_reset {
		2069	my ($self) = @_;
		2070
		2071	$self->reset_at <= $cf::RUNTIME
		2072	}
		2073
		2074	sub reset {
		2075	my ($self) = @_;
		2076
		2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2078
		2079	return if $self->players;
		2080
		2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
		2092
		2093	delete $cf::MAP{$self->path};
		2094
		2095	$self->clear;
		2096
		2097	$_->clear_links_to ($self) for values %cf::MAP;
		2098
		2099	$self->unlink_save;
		2100	$self->destroy;
		2101	}
		2102
		2103	my $nuke_counter = "aaaa";
		2104
		2105	sub nuke {
		2106	my ($self) = @_;
		2107
		2108	delete $cf::MAP{$self->path};
		2109
		2110	$self->unlink_save;
		2111
		2112	bless $self, "cf::map";
		2113	delete $self->{deny_reset};
		2114	$self->{deny_save} = 1;
		2115	$self->reset_timeout (1);
		2116	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2117
		2118	$cf::MAP{$self->path} = $self;
		2119
		2120	$self->reset; # polite request, might not happen
		2121	}
		2122
		2123	=item $maps = cf::map::tmp_maps
		2124
		2125	Returns an arrayref with all map paths of currently instantiated and saved
		2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
		2131	[
		2132	map {
		2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
		2139	}
		2140
		2141	=item $maps = cf::map::random_maps
		2142
		2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
		2145
		2146	=cut
		2147
		2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
		2159	=item cf::map::unique_maps
		2160
		2161	Returns an arrayref of paths of all shared maps that have
		2162	instantiated unique items. May block.
		2163
		2164	=cut
		2165
		2166	sub unique_maps() {
		2167	[
		2168	map {
		2169	utf8::decode $_;
		2170	/\.map$/
		2171	? normalise $_
		2172	: ()
		2173	} @{ aio_readdir $UNIQUEDIR or [] }
		2174	]
		2175	}
		2176
		2177	package cf;
		2178
		2179	=back
		2180
		2181	=head3 cf::object
		2182
		2183	=cut
		2184
		2185	package cf::object;
869		2186
870	=over 4	2187	=over 4
871		2188
872	=item cf::player::exists $login	2189	=item $ob->inv_recursive
873		2190
874	Returns true when the given account exists.	2191	Returns the inventory of the object _and_ their inventories, recursively.
875		2192
876	=cut	2193	=cut
877		2194
878	sub cf::player::exists($) {	2195	sub inv_recursive_;
879	cf::player::find $_[0]	2196	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2197	map { $_, inv_recursive_ $_->inv } @_
881	}	2198	}
882		2199
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	2200	sub inv_recursive {
884		2201	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	2202	}
		2203
		2204	package cf;
896		2205
897	=back	2206	=back
898		2207
899	=head3 cf::object::player	2208	=head3 cf::object::player
900		2209
…		…
916		2225
917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
918		2227
919	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
920	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
921	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
922	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
923	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
924	}	2242	}
925	}	2243	}
926		2244
927	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
928		2246
…		…
938	(ref $cf::CFG{"may_$access"}	2256	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2257	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	2258	: $cf::CFG{"may_$access"})
941	}	2259	}
942		2260
		2261	=item $player_object->enter_link
		2262
		2263	Freezes the player and moves him/her to a special map (C<{link}>).
		2264
		2265	The player should be reasonably safe there for short amounts of time. You
		2266	I<MUST> call C<leave_link> as soon as possible, though.
		2267
		2268	Will never block.
		2269
		2270	=item $player_object->leave_link ($map, $x, $y)
		2271
		2272	Moves the player out of the special C<{link}> map onto the specified
		2273	map. If the map is not valid (or omitted), the player will be moved back
		2274	to the location he/she was before the call to C<enter_link>, or, if that
		2275	fails, to the emergency map position.
		2276
		2277	Might block.
		2278
		2279	=cut
		2280
		2281	sub link_map {
		2282	unless ($LINK_MAP) {
		2283	$LINK_MAP = cf::map::find "{link}"
		2284	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2285	$LINK_MAP->load;
		2286	}
		2287
		2288	$LINK_MAP
		2289	}
		2290
		2291	sub cf::object::player::enter_link {
		2292	my ($self) = @_;
		2293
		2294	$self->deactivate_recursive;
		2295
		2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2297
		2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2299	if $self->map && $self->map->{path} ne "{link}";
		2300
		2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2302	}
		2303
		2304	sub cf::object::player::leave_link {
		2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
		2308
		2309	my $link_pos = delete $self->{_link_pos};
		2310
		2311	unless ($map) {
		2312	# restore original map position
		2313	($map, $x, $y) = @{ $link_pos || [] };
		2314	$map = cf::map::find $map;
		2315
		2316	unless ($map) {
		2317	($map, $x, $y) = @$EMERGENCY_POSITION;
		2318	$map = cf::map::find $map
		2319	or die "FATAL: cannot load emergency map\n";
		2320	}
		2321	}
		2322
		2323	($x, $y) = (-1, -1)
		2324	unless (defined $x) && (defined $y);
		2325
		2326	# use -1 or undef as default coordinates, not 0, 0
		2327	($x, $y) = ($map->enter_x, $map->enter_y)
		2328	if $x <=0 && $y <= 0;
		2329
		2330	$map->load;
		2331	$map->load_diag;
		2332
		2333	return unless $self->contr->active;
		2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2337	$self->enter_map ($map, $x, $y);
		2338	}
		2339
		2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2341
		2342	Moves the player to the given map-path and coordinates by first freezing
		2343	her, loading and preparing them map, calling the provided $check callback
		2344	that has to return the map if sucecssful, and then unfreezes the player on
		2345	the new (success) or old (failed) map position. In either case, $done will
		2346	be called at the end of this process.
		2347
		2348	=cut
		2349
		2350	our $GOTOGEN;
		2351
		2352	sub cf::object::player::goto {
		2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2357
		2358	$self->enter_link;
		2359
		2360	(async {
		2361	my $map = eval {
		2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
		2365	$map = $map->customise_for ($self);
		2366	$map = $check->($map) if $check && $map;
		2367	} else {
		2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
		2370
		2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
		2377	}
		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
		2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
		2385	})->prio (1);
		2386	}
		2387
		2388	=item $player_object->enter_exit ($exit_object)
		2389
		2390	=cut
		2391
		2392	sub parse_random_map_params {
		2393	my ($spec) = @_;
		2394
		2395	my $rmp = { # defaults
		2396	xsize => (cf::rndm 15, 40),
		2397	ysize => (cf::rndm 15, 40),
		2398	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2399	#layout => string,
		2400	};
		2401
		2402	for (split /\n/, $spec) {
		2403	my ($k, $v) = split /\s+/, $_, 2;
		2404
		2405	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2406	}
		2407
		2408	$rmp
		2409	}
		2410
		2411	sub prepare_random_map {
		2412	my ($exit) = @_;
		2413
		2414	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2415
		2416	# all this does is basically replace the /! path by
		2417	# a new random map path (?random/...) with a seed
		2418	# that depends on the exit object
		2419
		2420	my $rmp = parse_random_map_params $exit->msg;
		2421
		2422	if ($exit->map) {
		2423	$rmp->{region} = $exit->region->name;
		2424	$rmp->{origin_map} = $exit->map->path;
		2425	$rmp->{origin_x} = $exit->x;
		2426	$rmp->{origin_y} = $exit->y;
		2427	}
		2428
		2429	$rmp->{random_seed} ||= $exit->random_seed;
		2430
		2431	my $data = cf::to_json $rmp;
		2432	my $md5 = Digest::MD5::md5_hex $data;
		2433	my $meta = "$RANDOMDIR/$md5.meta";
		2434
		2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2436	aio_write $fh, 0, (length $data), $data, 0;
		2437	undef $fh;
		2438	aio_rename "$meta~", $meta;
		2439
		2440	$exit->slaying ("?random/$md5");
		2441	$exit->msg (undef);
		2442	}
		2443	}
		2444
		2445	sub cf::object::player::enter_exit {
		2446	my ($self, $exit) = @_;
		2447
		2448	return unless $self->type == cf::PLAYER;
		2449
		2450	if ($exit->slaying eq "/!") {
		2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
		2454	cf::sync_job { prepare_random_map $exit };
		2455	}
		2456
		2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2458	my $hp = $exit->stats->hp;
		2459	my $sp = $exit->stats->sp;
		2460
		2461	$self->enter_link;
		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
		2466
		2467	(async {
		2468	$self->deactivate_recursive; # just to be sure
		2469	unless (eval {
		2470	$self->goto ($slaying, $hp, $sp);
		2471
		2472	1;
		2473	}) {
		2474	$self->message ("Something went wrong deep within the crossfire server. "
		2475	. "I'll try to bring you back to the map you were before. "
		2476	. "Please report this to the dungeon master!",
		2477	cf::NDI_UNIQUE | cf::NDI_RED);
		2478
		2479	warn "ERROR in enter_exit: $@";
		2480	$self->leave_link;
		2481	}
		2482	})->prio (1);
		2483	}
		2484
943	=head3 cf::client	2485	=head3 cf::client
944		2486
945	=over 4	2487	=over 4
946		2488
947	=item $client->send_drawinfo ($text, $flags)	2489	=item $client->send_drawinfo ($text, $flags)
…		…
953		2495
954	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
956		2498
957	utf8::encode $text;	2499	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2501	}
960		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => $channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
961		2573
962	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
963		2575
964	Queues a query to the client, calling the given callback with	2576	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
967		2579
968	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
969	reliable at some point in the future.	2581	become reliable at some point in the future.
970		2582
971	=cut	2583	=cut
972		2584
973	sub cf::client::query {	2585	sub cf::client::query {
974	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
982	utf8::encode $text;	2594	utf8::encode $text;
983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
984		2596
985	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
986	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
987	}	2601	}
988		2602
989	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
990	on_reply => sub {	2609	on_reply => sub {
991	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
992		2611
993	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
994	# get handled first	2613	# get handled first
995	my $queue = delete $ns->{query_queue};	2614	my $queue = delete $ns->{query_queue}
		2615	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2616
997	(shift @$queue)->[1]->($msg);	2617	(shift @$queue)->[1]->($msg);
		2618	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2619
999	push @{ $ns->{query_queue} }, @$queue;	2620	push @{ $ns->{query_queue} }, @$queue;
1000		2621
1001	if (@{ $ns->{query_queue} } == @$queue) {	2622	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2623	if (@$queue) {
…		…
1004	} else {	2625	} else {
1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1006	}	2627	}
1007	}	2628	}
1008	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
1009	);	2653	);
1010		2654
1011	=item $client->coro (\&cb)	2655	=item $client->async (\&cb)
1012		2656
1013	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2658	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2659	or loss of connection).
1016		2660
1017	=cut	2661	=cut
1018		2662
1019	sub cf::client::coro {	2663	sub cf::client::async {
1020	my ($self, $cb) = @_;	2664	my ($self, $cb) = @_;
1021		2665
1022	my $coro; $coro = async {	2666	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2667
1029	$coro->on_destroy (sub {	2668	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2669	delete $self->{_coro}{$coro+0};
1031	});	2670	});
1032		2671
…		…
1065		2704
1066	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
1067		2706
1068	=pod	2707	=pod
1069		2708
1070	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
1071		2710
1072	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
1073	cf::object::player player	2715	cf::object::player
1074	cf::player peaceful	2716	player
1075	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
1076		2723
1077	=cut	2724	=cut
1078		2725
1079	for (	2726	for (
1080	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
1081	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
1082	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
1083	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
1084	) {	2732	) {
1085	no strict 'refs';	2733	no strict 'refs';
…		…
1156	=back	2804	=back
1157		2805
1158	=cut	2806	=cut
1159		2807
1160	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
1161		2810
1162	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
1163		2813
1164	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
1165	currently store anything that can be serialised using Storable, which
1166	excludes objects.
1167		2815
1168	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
1169	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
1170		2819
1171	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
1172		2821
1173	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
1174		2824
1175	Return a hashref for use by the extension C<$family>, which can be
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178
1179	=item $value = cf::db_get $family => $key
1180
1181	Returns a single value from the database
1182
1183	=item cf::db_put $family => $hashref
1184
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187
1188	=item cf::db_put $family => $key => $value
1189
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200
1201	=cut
1202
1203	our $DB;
1204
1205	{
1206	my $path = cf::localdir . "/database.pst";
1207
1208	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
1212		2827
1213	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1214		2834
1215	sub db_save() {	2835	cf::cede_to_tick;
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}
1224	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});
1236
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}
1241
1242	sub db_get($;$) {
1243	@_ >= 2
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247
1248	sub db_put($$;$) {
1249	if (@_ >= 3) {
1250	$DB->{$_[0]}{$_[1]} = $_[2];
1251	} else {
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2836	}
1262	);
1263	}
1264		2837
1265	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
1266	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	my $soundconf = delete $res->{"res/sound.conf"};
		2871
		2872	while (my ($name, $info) = each %$res) {
		2873	my $meta = $enc->encode ({
		2874	name => $name,
		2875	%{ $info->{meta} || {} },
		2876	});
		2877
		2878	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2879
		2880	if ($info->{type} & 1) {
		2881	# prepend meta info
		2882
		2883	my $data = pack "(w/a*)*", $meta, $info->{data};
		2884	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2885
		2886	cf::face::set_data $idx, 0, $data, $chk;
		2887	} else {
		2888	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2889	}
		2890
		2891	cf::face::set_type $idx, $info->{type};
		2892
		2893	cf::cede_to_tick;
		2894	}
		2895
		2896	if ($soundconf) {
		2897	$soundconf = $enc->decode (delete $soundconf->{data});
		2898
		2899	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2900	my $sound = $soundconf->{compat}[$_]
		2901	or next;
		2902
		2903	my $face = cf::face::find "sound/$sound->[1]";
		2904
		2905	cf::sound::set $sound->[0] => $face;
		2906	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2907	}
		2908
		2909	#TODO
		2910	}
		2911	}
		2912
		2913	1
		2914	}
		2915
		2916	register_exticmd fx_want => sub {
		2917	my ($ns, $want) = @_;
		2918
		2919	while (my ($k, $v) = each %$want) {
		2920	$ns->fx_want ($k, $v);
		2921	}
		2922	};
		2923
		2924	sub reload_regions {
		2925	load_resource_file "$MAPDIR/regions"
		2926	or die "unable to load regions file\n";
		2927
		2928	for (cf::region::list) {
		2929	$_->{match} = qr/$_->{match}/
		2930	if exists $_->{match};
		2931	}
		2932	}
		2933
		2934	sub reload_facedata {
		2935	load_facedata "$DATADIR/facedata"
		2936	or die "unable to load facedata\n";
		2937	}
		2938
		2939	sub reload_archetypes {
		2940	load_resource_file "$DATADIR/archetypes"
		2941	or die "unable to load archetypes\n";
		2942	#d# NEED to laod twice to resolve forward references
		2943	# this really needs to be done in an extra post-pass
		2944	# (which needs to be synchronous, so solve it differently)
		2945	load_resource_file "$DATADIR/archetypes"
		2946	or die "unable to load archetypes\n";
		2947	}
		2948
		2949	sub reload_treasures {
		2950	load_resource_file "$DATADIR/treasures"
		2951	or die "unable to load treasurelists\n";
		2952	}
		2953
		2954	sub reload_resources {
		2955	warn "reloading resource files...\n";
		2956
		2957	reload_regions;
		2958	reload_facedata;
		2959	#reload_archetypes;#d#
		2960	reload_archetypes;
		2961	reload_treasures;
		2962
		2963	warn "finished reloading resource files\n";
		2964	}
		2965
		2966	sub init {
		2967	reload_resources;
		2968	}
1267		2969
1268	sub cfg_load {	2970	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2971	open my $fh, "<:utf8", "$CONFDIR/config"
1270	or return;	2972	or return;
1271		2973
1272	local $/;	2974	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2975	*CFG = YAML::Syck::Load <$fh>;
		2976
		2977	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2978
		2979	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2980	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2981
		2982	if (exists $CFG{mlockall}) {
		2983	eval {
		2984	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2985	and die "WARNING: m(un)lockall failed: $!\n";
		2986	};
		2987	warn $@ if $@;
		2988	}
1274	}	2989	}
1275		2990
1276	sub main {	2991	sub main {
		2992	# we must not ever block the main coroutine
		2993	local $Coro::idle = sub {
		2994	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2995	(async {
		2996	Event::one_event;
		2997	})->prio (Coro::PRIO_MAX);
		2998	};
		2999
1277	cfg_load;	3000	cfg_load;
1278	db_load;	3001	db_init;
1279	load_extensions;	3002	load_extensions;
		3003
		3004	$TICK_WATCHER->start;
1280	Event::loop;	3005	Event::loop;
1281	}	3006	}
1282		3007
1283	#############################################################################	3008	#############################################################################
1284	# initialisation	3009	# initialisation and cleanup
1285		3010
1286	sub perl_reload() {	3011	# install some emergency cleanup handlers
		3012	BEGIN {
		3013	for my $signal (qw(INT HUP TERM)) {
		3014	Event->signal (
		3015	reentrant => 0,
		3016	data => WF_AUTOCANCEL,
		3017	signal => $signal,
		3018	prio => 0,
		3019	cb => sub {
		3020	cf::cleanup "SIG$signal";
		3021	},
		3022	);
		3023	}
		3024	}
		3025
		3026	sub write_runtime {
		3027	my $runtime = "$LOCALDIR/runtime";
		3028
		3029	# first touch the runtime file to show we are still running:
		3030	# the fsync below can take a very very long time.
		3031
		3032	IO::AIO::aio_utime $runtime, undef, undef;
		3033
		3034	my $guard = cf::lock_acquire "write_runtime";
		3035
		3036	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3037	or return;
		3038
		3039	my $value = $cf::RUNTIME + 90 + 10;
		3040	# 10 is the runtime save interval, for a monotonic clock
		3041	# 60 allows for the watchdog to kill the server.
		3042
		3043	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3044	and return;
		3045
		3046	# always fsync - this file is important
		3047	aio_fsync $fh
		3048	and return;
		3049
		3050	# touch it again to show we are up-to-date
		3051	aio_utime $fh, undef, undef;
		3052
		3053	close $fh
		3054	or return;
		3055
		3056	aio_rename "$runtime~", $runtime
		3057	and return;
		3058
		3059	warn "runtime file written.\n";
		3060
		3061	1
		3062	}
		3063
		3064	sub emergency_save() {
		3065	my $freeze_guard = cf::freeze_mainloop;
		3066
		3067	warn "enter emergency perl save\n";
		3068
		3069	cf::sync_job {
		3070	# use a peculiar iteration method to avoid tripping on perl
		3071	# refcount bugs in for. also avoids problems with players
		3072	# and maps saved/destroyed asynchronously.
		3073	warn "begin emergency player save\n";
		3074	for my $login (keys %cf::PLAYER) {
		3075	my $pl = $cf::PLAYER{$login} or next;
		3076	$pl->valid or next;
		3077	$pl->save;
		3078	}
		3079	warn "end emergency player save\n";
		3080
		3081	warn "begin emergency map save\n";
		3082	for my $path (keys %cf::MAP) {
		3083	my $map = $cf::MAP{$path} or next;
		3084	$map->valid or next;
		3085	$map->save;
		3086	}
		3087	warn "end emergency map save\n";
		3088
		3089	warn "begin emergency database checkpoint\n";
		3090	BDB::db_env_txn_checkpoint $DB_ENV;
		3091	warn "end emergency database checkpoint\n";
		3092	};
		3093
		3094	warn "leave emergency perl save\n";
		3095	}
		3096
		3097	sub post_cleanup {
		3098	my ($make_core) = @_;
		3099
		3100	warn Carp::longmess "post_cleanup backtrace"
		3101	if $make_core;
		3102	}
		3103
		3104	sub do_reload_perl() {
1287	# can/must only be called in main	3105	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	3106	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	3107	warn "can only reload from main coroutine";
1290	return;	3108	return;
1291	}	3109	}
1292		3110
1293	warn "reloading...";	3111	warn "reloading...";
1294		3112
1295	local $FREEZE = 1;	3113	warn "entering sync_job";
		3114
		3115	cf::sync_job {
		3116	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	3117	cf::emergency_save;
		3118	cf::write_runtime; # external watchdog should not bark
1297		3119
1298	eval {	3120	warn "syncing database to disk";
		3121	BDB::db_env_txn_checkpoint $DB_ENV;
		3122
1299	# if anything goes wrong in here, we should simply crash as we already saved	3123	# if anything goes wrong in here, we should simply crash as we already saved
1300		3124
1301	# cancel all watchers	3125	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	3126	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	3127	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	3128	}
1305		3129
		3130	warn "flushing outstanding aio requests";
		3131	for (;;) {
		3132	BDB::flush;
		3133	IO::AIO::flush;
		3134	Coro::cede;
		3135	last unless IO::AIO::nreqs || BDB::nreqs;
		3136	warn "iterate...";
		3137	}
		3138
		3139	++$RELOAD;
		3140
1306	# cancel all extension coros	3141	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	3142	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	3143	%EXT_CORO = ();
1309		3144
1310	# unload all extensions	3145	warn "removing commands";
1311	for (@exts) {	3146	%COMMAND = ();
		3147
		3148	warn "removing ext/exti commands";
		3149	%EXTCMD = ();
		3150	%EXTICMD = ();
		3151
		3152	warn "unloading/nuking all extensions";
		3153	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	3154	warn "... unloading $pkg";
1313	unload_extension $_;	3155
		3156	if (my $cb = $pkg->can ("unload")) {
		3157	eval {
		3158	$cb->($pkg);
		3159	1
		3160	} or warn "$pkg unloaded, but with errors: $@";
1314	}	3161	}
1315		3162
		3163	warn "... nuking $pkg";
		3164	Symbol::delete_package $pkg;
		3165	}
		3166
1316	# unload all modules loaded from $LIBDIR	3167	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	3168	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3169	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		3170
1320	warn "removing <$k>";	3171	warn "... unloading $k";
1321	delete $INC{$k};	3172	delete $INC{$k};
1322		3173
1323	$k =~ s/\.pm$//;	3174	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	3175	$k =~ s/\//::/g;
1325		3176
…		…
1328	}	3179	}
1329		3180
1330	Symbol::delete_package $k;	3181	Symbol::delete_package $k;
1331	}	3182	}
1332		3183
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	3184	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	3185	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3186	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		3187
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	3188	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	3189	delete $INC{"cf.pm"};
		3190	delete $INC{"cf/pod.pm"};
1346		3191
1347	# don't, removes xs symbols, too,	3192	# don't, removes xs symbols, too,
1348	# and global variables created in xs	3193	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	3194	#Symbol::delete_package __PACKAGE__;
1350		3195
1351	# reload cf.pm	3196	warn "unload completed, starting to reload now";
		3197
1352	warn "reloading cf.pm";	3198	warn "reloading cf.pm";
1353	require cf;	3199	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3200	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		3201
1356	# load config and database again	3202	warn "loading config and database again";
1357	cf::cfg_load;	3203	cf::cfg_load;
1358	cf::db_load;
1359		3204
1360	# load extensions
1361	warn "load extensions";	3205	warn "loading extensions";
1362	cf::load_extensions;	3206	cf::load_extensions;
1363		3207
1364	# reattach attachments to objects	3208	warn "reattaching attachments to objects/players";
1365	warn "reattach";	3209	_global_reattach; # objects, sockets
1366	_global_reattach;	3210	warn "reattaching attachments to maps";
1367	};	3211	reattach $_ for values %MAP;
		3212	warn "reattaching attachments to players";
		3213	reattach $_ for values %PLAYER;
1368		3214
1369	if ($@) {	3215	warn "leaving sync_job";
		3216
		3217	1
		3218	} or do {
1370	warn $@;	3219	warn $@;
1371	warn "error while reloading, exiting.";	3220	warn "error while reloading, exiting.";
1372	exit 1;	3221	exit 1;
1373	}	3222	};
1374		3223
1375	warn "reloaded successfully";	3224	warn "reloaded";
1376	};	3225	};
1377		3226
1378	register "<global>", __PACKAGE__;	3227	our $RELOAD_WATCHER; # used only during reload
1379		3228
		3229	sub reload_perl() {
		3230	# doing reload synchronously and two reloads happen back-to-back,
		3231	# coro crashes during coro_state_free->destroy here.
		3232
		3233	$RELOAD_WATCHER ||= Event->timer (
		3234	reentrant => 0,
		3235	after => 0,
		3236	data => WF_AUTOCANCEL,
		3237	cb => sub {
		3238	do_reload_perl;
		3239	undef $RELOAD_WATCHER;
		3240	},
		3241	);
		3242	}
		3243
1380	register_command "perl-reload" => sub {	3244	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	3245	my ($who, $arg) = @_;
1382		3246
1383	if ($who->flag (FLAG_WIZ)) {	3247	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	3248	$who->message ("reloading server.");
		3249	async { reload_perl };
1387	}	3250	}
1388	};	3251	};
1389		3252
1390	unshift @INC, $LIBDIR;	3253	unshift @INC, $LIBDIR;
1391		3254
		3255	my $bug_warning = 0;
		3256
		3257	our @WAIT_FOR_TICK;
		3258	our @WAIT_FOR_TICK_BEGIN;
		3259
		3260	sub wait_for_tick {
		3261	return unless $TICK_WATCHER->is_active;
		3262	return if $Coro::current == $Coro::main;
		3263
		3264	my $signal = new Coro::Signal;
		3265	push @WAIT_FOR_TICK, $signal;
		3266	$signal->wait;
		3267	}
		3268
		3269	sub wait_for_tick_begin {
		3270	return unless $TICK_WATCHER->is_active;
		3271	return if $Coro::current == $Coro::main;
		3272
		3273	my $signal = new Coro::Signal;
		3274	push @WAIT_FOR_TICK_BEGIN, $signal;
		3275	$signal->wait;
		3276	}
		3277
		3278	my $min = 1e6;#d#
		3279	my $avg = 10;
1392	$TICK_WATCHER = Event->timer (	3280	$TICK_WATCHER = Event->timer (
1393	reentrant => 0,	3281	reentrant => 0,
		3282	parked => 1,
1394	prio => 0,	3283	prio => 0,
1395	at => $NEXT_TICK || $TICK,	3284	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	3285	data => WF_AUTOCANCEL,
1397	cb => sub {	3286	cb => sub {
1398	unless ($FREEZE) {	3287	if ($Coro::current != $Coro::main) {
		3288	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3289	unless ++$bug_warning > 10;
		3290	return;
		3291	}
		3292
		3293	$NOW = $tick_start = Event::time;
		3294
1399	cf::server_tick; # one server iteration	3295	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	3296
		3297	0 && sync_job {#d#
		3298	for(1..10) {
		3299	my $t = Event::time;
		3300	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3301	or die;
		3302
		3303	$map->width (50);
		3304	$map->height (50);
		3305	$map->alloc;
		3306	$map->_load_objects ("/tmp/x.map", 1);
		3307	my $t = Event::time - $t;
		3308
		3309	#next unless $t < 0.0013;#d#
		3310	if ($t < $min) {
		3311	$min = $t;
		3312	}
		3313	$avg = $avg * 0.99 + $t * 0.01;
		3314	}
		3315	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3316	exit 0;
		3317	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1401	}	3318	};
1402		3319
		3320	$RUNTIME += $TICK;
1403	$NEXT_TICK += $TICK;	3321	$NEXT_TICK += $TICK;
1404		3322
		3323	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3324	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3325	Coro::async_pool {
		3326	write_runtime
		3327	or warn "ERROR: unable to write runtime file: $!";
		3328	};
		3329	}
		3330
		3331	# my $AFTER = Event::time;
		3332	# warn $AFTER - $NOW;#d#
		3333
		3334	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3335	$sig->send;
		3336	}
		3337	while (my $sig = shift @WAIT_FOR_TICK) {
		3338	$sig->send;
		3339	}
		3340
		3341	$NOW = Event::time;
		3342
1405	# if we are delayed by four ticks or more, skip them all	3343	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3344	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1407		3345
1408	$TICK_WATCHER->at ($NEXT_TICK);	3346	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;	3347	$TICK_WATCHER->start;
		3348
		3349	$LOAD = ($NOW - $tick_start) / $TICK;
		3350	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3351
		3352	_post_tick;
		3353
		3354
1410	},	3355	},
1411	);	3356	);
1412		3357
		3358	{
		3359	BDB::max_poll_time $TICK * 0.1;
		3360	$BDB_POLL_WATCHER = Event->io (
		3361	reentrant => 0,
		3362	fd => BDB::poll_fileno,
		3363	poll => 'r',
		3364	prio => 0,
		3365	data => WF_AUTOCANCEL,
		3366	cb => \&BDB::poll_cb,
		3367	);
		3368	BDB::min_parallel 8;
		3369
		3370	BDB::set_sync_prepare {
		3371	my $status;
		3372	my $current = $Coro::current;
		3373	(
		3374	sub {
		3375	$status = $!;
		3376	$current->ready; undef $current;
		3377	},
		3378	sub {
		3379	Coro::schedule while defined $current;
		3380	$! = $status;
		3381	},
		3382	)
		3383	};
		3384
		3385	unless ($DB_ENV) {
		3386	$DB_ENV = BDB::db_env_create;
		3387
		3388	cf::sync_job {
		3389	eval {
		3390	BDB::db_env_open
		3391	$DB_ENV,
		3392	$BDBDIR,
		3393	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3394	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3395	0666;
		3396
		3397	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3398
		3399	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3400	$DB_ENV->set_lk_detect;
		3401	};
		3402
		3403	cf::cleanup "db_env_open(db): $@" if $@;
		3404	};
		3405	}
		3406	}
		3407
		3408	{
		3409	IO::AIO::min_parallel 8;
		3410
		3411	undef $Coro::AIO::WATCHER;
1413	IO::AIO::max_poll_time $TICK * 0.2;	3412	IO::AIO::max_poll_time $TICK * 0.1;
1414		3413	$AIO_POLL_WATCHER = Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	3414	reentrant => 0,
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,	3415	data => WF_AUTOCANCEL,
		3416	fd => IO::AIO::poll_fileno,
		3417	poll => 'r',
		3418	prio => 6,
1419	cb => \&IO::AIO::poll_cb);	3419	cb => \&IO::AIO::poll_cb,
		3420	);
		3421	}
1420		3422
1421	# we must not ever block the main coroutine	3423	my $_log_backtrace;
1422	$Coro::idle = sub {	3424
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3425	sub _log_backtrace {
1424	warn "FATAL: Coro::idle was called, major BUG\n";	3426	my ($msg, @addr) = @_;
1425	(Coro::unblock_sub {	3427
1426	Event::one_event;	3428	$msg =~ s/\n//;
1427	})->();	3429
1428	};	3430	# limit the # of concurrent backtraces
		3431	if ($_log_backtrace < 2) {
		3432	++$_log_backtrace;
		3433	async {
		3434	my @bt = fork_call {
		3435	@addr = map { sprintf "%x", $_ } @addr;
		3436	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3437	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3438	or die "addr2line: $!";
		3439
		3440	my @funcs;
		3441	my @res = <$fh>;
		3442	chomp for @res;
		3443	while (@res) {
		3444	my ($func, $line) = splice @res, 0, 2, ();
		3445	push @funcs, "[$func] $line";
		3446	}
		3447
		3448	@funcs
		3449	};
		3450
		3451	LOG llevInfo, "[ABT] $msg\n";
		3452	LOG llevInfo, "[ABT] $_\n" for @bt;
		3453	--$_log_backtrace;
		3454	};
		3455	} else {
		3456	LOG llevInfo, "[ABT] $msg\n";
		3457	LOG llevInfo, "[ABT] [suppressed]\n";
		3458	}
		3459	}
		3460
		3461	# load additional modules
		3462	use cf::pod;
		3463
		3464	END { cf::emergency_save }
1429		3465
1430	1	3466	1
1431		3467

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