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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.385 by root, Fri Oct 12 19:13:26 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 Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		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;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
47		89
48	our %CFG;	90	our %CFG;
49		91
50	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	93	our $RUNTIME;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		98
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
61		105
62	binmode STDOUT;	106	binmode STDOUT;
63	binmode STDERR;	107	binmode STDERR;
64		108
65	# read virtual server time, if available	109	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
70	}	114	}
71		115
72	mkdir cf::localdir;	116	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		118
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
81		122
82	#############################################################################	123	#############################################################################
83		124
84	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
85		126
…		…
92	=item $cf::RUNTIME	133	=item $cf::RUNTIME
93		134
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	136	every server tick.
96		137
97	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		141
99	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
101		146
102	=item $cf::NOW	147	=item $cf::NOW
103		148
104	The time of the last (current) server tick.	149	The time of the last (current) server tick.
105		150
106	=item $cf::TICK	151	=item $cf::TICK
107		152
108	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
109		164
110	=item %cf::CFG	165	=item %cf::CFG
111		166
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	168	from wherever your confdir points to.
114		169
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		171
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
121		181
122	=back	182	=back
123		183
124	=cut	184	=cut
125		185
126	BEGIN {	186	BEGIN {
127	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	188	my $msg = join "", @_;
129	utf8::encode $msg;
130		189
131	$msg .= "\n"	190	$msg .= "\n"
132	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
133		194
134	LOG llevError, $msg;	195	LOG llevError, $msg;
135	};	196	};
136	}	197	}
137		198
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		206
145	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	208	# within the Safe compartment.
147	for my $pkg (qw(	209	for my $pkg (qw(
148	cf::global cf::attachable	210	cf::global cf::attachable
…		…
157		219
158	$Event::DIED = sub {	220	$Event::DIED = sub {
159	warn "error in event callback: @_";	221	warn "error in event callback: @_";
160	};	222	};
161		223
162	my %ext_pkg;	224	#############################################################################
163	my @exts;
164	my @hook;
165		225
166	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
167		227
168	=over 4	228	=over 4
169		229
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	249	$d
190	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
191	}	251	}
192		252
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
196		254
197	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
198		256
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
207		258
208	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
209		260
210	=cut	261	=cut
211		262
212	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
214	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
215	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
216		267
217	=item cf::lock_wait $string	268	=item cf::lock_wait $string
218		269
219	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
220		271
…		…
223	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
226	returned.	277	returned.
227		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
228	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
230		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
231	=cut	289	=cut
232		290
233	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
234		293
235	sub lock_wait($) {	294	sub lock_wait($) {
236	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
237		301
238	# wait for lock, if any	302	# wait for lock, if any
239	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	305	Coro::schedule;
…		…
247		311
248	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
249	lock_wait $key;	313	lock_wait $key;
250		314
251	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
252		317
253	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
256	}	322	}
257	}	323	}
258		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
259	sub freeze_mainloop {	331	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
261		333
262	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
263	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
264	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
265	}	397	}
266		398
267	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
268		400
269	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		406
275	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
276		408
277	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
278		410
279	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
282		415
283	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
286	fast or be very important.	419	fast or be very important.
…		…
289		422
290	sub sync_job(&) {	423	sub sync_job(&) {
291	my ($job) = @_;	424	my ($job) = @_;
292		425
293	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
294	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
296		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
297	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	435	# (but this is cancel-safe)
299	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
300		437
301	my $busy = 1;	438	my $busy = 1;
302	my @res;	439	my @res;
303		440
304	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	443	@res = eval { $job->() };
306	warn $@ if $@;	444	warn $@ if $@;
307	undef $busy;	445	undef $busy;
308	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
309		447
310	while ($busy) {	448	while ($busy) {
311	Coro::cede or Event::one_event;	449	Coro::cede or Event::one_event;
312	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
313		458
314	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
315	} else {	460	} else {
316	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
317		462
…		…
319	}	464	}
320	}	465	}
321		466
322	=item $coro = cf::async_ext { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
323		468
324	Like async, but this coro is automcatially being canceled when the	469	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	470	extension calling this is being unloaded.
326		471
327	=cut	472	=cut
328		473
329	sub async_ext(&) {	474	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
338		483
339	$coro	484	$coro
340	}	485	}
341		486
342	sub write_runtime {	487	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		488
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
346	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
347		493
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		495
352	aio_fsync $fh	496	sub fork_call(&@) {
353	and return;	497	my ($cb, @args) = @_;
354		498
355	close $fh	499	# we seemingly have to make a local copy of the whole thing,
356	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
357		502
358	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
359	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
360		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
361	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	647	}
363		648
364	=back	649	=back
365		650
366	=cut	651	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		652
490	#############################################################################	653	#############################################################################
491		654
492	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
493		656
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
497		660
498	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	663	Crossfire TRT).
501		664
502	=over 4	665	=over 4
503		666
504	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
505		668
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	783	our @CB_MAP = ();
621		784
622	my %attachment;	785	my %attachment;
623		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
624	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
626		795
627	use sort 'stable';	796	use sort 'stable';
628		797
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
663		832
664	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		837
669	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	839	my $pkg = shift @arg;
671		840
672	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
702	}	871	}
703		872
704	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
705	} else {	874	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	876	}
708		877
709	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
710	}	879	}
711		880
…		…
713	if (ref $_[0]) {	882	if (ref $_[0]) {
714	_object_attach @_;	883	_object_attach @_;
715	} else {	884	} else {
716	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
717	}	886	}
		887	_recalc_want;
718	};	888	};
719		889
720	# all those should be optimised	890	# all those should be optimised
721	sub cf::attachable::detach {	891	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
726	reattach ($obj);	896	reattach ($obj);
727	} else {	897	} else {
728	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
729	}	899	}
		900	_recalc_want;
730	};	901	};
731		902
732	sub cf::attachable::attached {	903	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
734		905
…		…
749	";	920	";
750	die if $@;	921	die if $@;
751	}	922	}
752		923
753	our $override;	924	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		926
756	sub override {	927	sub override {
757	$override = 1;	928	$override = 1;
758	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
759	}	930	}
760		931
761	sub do_invoke {	932	sub do_invoke {
762	my $event = shift;	933	my $event = shift;
763	my $callbacks = shift;	934	my $callbacks = shift;
764		935
765	@invoke_results = ();	936	@INVOKE_RESULTS = ();
766		937
767	local $override;	938	local $override;
768		939
769	for (@$callbacks) {	940	for (@$callbacks) {
770	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
787		958
788	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
789		960
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		964
794	=back	965	=back
795		966
796	=cut	967	=cut
797		968
798	#############################################################################	969	#############################################################################
799	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	return 1;#d#
		977
		978	#todo#d# kill yourself and do some recursive checking manually without storable
		979	sync_job {
		980	my $guard = Coro::Storable::guard;
		981	local $Storable::canonical = 1;
		982	my $fob1 = Storable::freeze $ob1;
		983	my $fob2 = Storable::freeze $ob2;
		984	$fob1 eq $fob2
		985	}
		986	}
800		987
801	sub reattach {	988	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	989	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	990	my ($obj) = @_;
		991
		992	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		993
805	my $registry = $obj->registry;	994	my $registry = $obj->registry;
806		995
807	@$registry = ();	996	@$registry = ();
808		997
…		…
849	sub object_freezer_save {	1038	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1039	my ($filename, $rdata, $objs) = @_;
851		1040
852	sync_job {	1041	sync_job {
853	if (length $$rdata) {	1042	if (length $$rdata) {
		1043	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1044	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1045	$decname, length $$rdata, scalar @$objs;
856		1046
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1049	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1051	close $fh;
862		1052
863	if (@$objs) {	1053	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1054	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1055	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1056	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1057	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1058	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1059	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1060	aio_rename "$filename.pst~", "$filename.pst";
871	}	1061	}
872	} else {	1062	} else {
873	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
…		…
879	}	1069	}
880	} else {	1070	} else {
881	aio_unlink $filename;	1071	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1072	aio_unlink "$filename.pst";
883	}	1073	}
884	}	1074	};
885	}	1075	}
886		1076
887	sub object_freezer_as_string {	1077	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1078	my ($rdata, $objs) = @_;
889		1079
…		…
901	or return;	1091	or return;
902		1092
903	unless (aio_stat "$filename.pst") {	1093	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1094	(aio_load "$filename.pst", $av) >= 0
905	or return;	1095	or return;
906	$av = eval { (Storable::thaw $av)->{objs} };
907	}
908		1096
		1097	my $st = eval { Coro::Storable::thaw $av }
		1098	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1099	$av = $st->{objs};
		1100	}
		1101
		1102	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1103	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1104	$decname, length $data, scalar @{$av || []};
		1105
911	return ($data, $av);	1106	($data, $av)
912	}	1107	}
		1108
		1109	=head2 COMMAND CALLBACKS
		1110
		1111	=over 4
		1112
		1113	=cut
913		1114
914	#############################################################################	1115	#############################################################################
915	# command handling &c	1116	# command handling &c
916		1117
917	=item cf::register_command $name => \&callback($ob,$args);	1118	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1131	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1132	}
932		1133
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1134	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1135
935	Register a callbackf ro execution when the client sends an extcmd packet.	1136	Register a callback for execution when the client sends an (synchronous)
		1137	extcmd packet. Ext commands will be processed in the order they are
		1138	received by the server, like other user commands. The first argument is
		1139	the logged-in player. Ext commands can only be processed after a player
		1140	has logged in successfully.
936		1141
937	If the callback returns something, it is sent back as if reply was being	1142	If the callback returns something, it is sent back as if reply was being
938	called.	1143	called.
939		1144
		1145	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1146
		1147	Register a callback for execution when the client sends an (asynchronous)
		1148	exticmd packet. Exti commands are processed by the server as soon as they
		1149	are received, i.e. out of order w.r.t. other commands. The first argument
		1150	is a client socket. Exti commands can be received anytime, even before
		1151	log-in.
		1152
		1153	If the callback returns something, it is sent back as if reply was being
		1154	called.
		1155
940	=cut	1156	=cut
941		1157
942	sub register_extcmd {	1158	sub register_extcmd {
943	my ($name, $cb) = @_;	1159	my ($name, $cb) = @_;
944		1160
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1161	$EXTCMD{$name} = $cb;
		1162	}
		1163
		1164	sub register_exticmd {
		1165	my ($name, $cb) = @_;
		1166
		1167	$EXTICMD{$name} = $cb;
949	}	1168	}
950		1169
951	cf::player->attach (	1170	cf::player->attach (
952	on_command => sub {	1171	on_command => sub {
953	my ($pl, $name, $params) = @_;	1172	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1181	cf::override;
963	},	1182	},
964	on_extcmd => sub {	1183	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1184	my ($pl, $buf) = @_;
966		1185
967	my $msg = eval { from_json $buf };	1186	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1187
969	if (ref $msg) {	1188	if (ref $msg) {
		1189	my ($type, $reply, @payload) =
		1190	"ARRAY" eq ref $msg
		1191	? @$msg
		1192	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1193
		1194	my @reply;
		1195
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1196	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1197	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1198	}
		1199
		1200	$pl->ext_reply ($reply, @reply)
		1201	if $reply;
		1202
975	} else {	1203	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1204	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1205	}
978		1206
979	cf::override;	1207	cf::override;
980	},	1208	},
981	);	1209	);
982		1210
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1211	sub load_extensions {
		1212	cf::sync_job {
		1213	my %todo;
		1214
1060	for my $ext (<$LIBDIR/*.ext>) {	1215	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1216	next unless -r $path;
1062	eval {	1217
1063	load_extension $ext;	1218	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1219	my $base = $1;
		1220	my $pkg = $1;
		1221	$pkg =~ s/[^[:word:]]/_/g;
		1222	$pkg = "ext::$pkg";
		1223
		1224	open my $fh, "<:utf8", $path
		1225	or die "$path: $!";
		1226
		1227	my $source = do { local $/; <$fh> };
		1228
		1229	my %ext = (
		1230	path => $path,
		1231	base => $base,
		1232	pkg => $pkg,
		1233	);
		1234
		1235	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1236	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1237
		1238	$ext{source} =
		1239	"package $pkg; use strict; use utf8;\n"
		1240	. "#line 1 \"$path\"\n{\n"
		1241	. $source
		1242	. "\n};\n1";
		1243
		1244	$todo{$base} = \%ext;
		1245	}
		1246
		1247	my %done;
		1248	while (%todo) {
		1249	my $progress;
		1250
		1251	while (my ($k, $v) = each %todo) {
		1252	for (split /,\s*/, $v->{meta}{depends}) {
		1253	goto skip
		1254	unless exists $done{$_};
		1255	}
		1256
		1257	warn "... loading '$k' into '$v->{pkg}'\n";
		1258
		1259	unless (eval $v->{source}) {
		1260	my $msg = $@ ? "$v->{path}: $@\n"
		1261	: "$v->{base}: extension inactive.\n";
		1262
		1263	if (exists $v->{meta}{mandatory}) {
		1264	warn $msg;
		1265	warn "mandatory extension failed to load, exiting.\n";
		1266	exit 1;
		1267	}
		1268
		1269	warn $msg;
		1270	}
		1271
		1272	$done{$k} = delete $todo{$k};
		1273	push @EXTS, $v->{pkg};
		1274	$progress = 1;
1064	1	1275	}
1065	} or warn "$ext not loaded: $@";	1276
		1277	skip:
		1278	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1279	unless $progress;
		1280	}
1066	}	1281	};
1067	}	1282	}
1068		1283
1069	#############################################################################	1284	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1285
1072	*cf::mapsupport::on_clean = sub {	1286	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1287
1085	=head2 CORE EXTENSIONS	1288	=head2 CORE EXTENSIONS
1086		1289
1087	Functions and methods that extend core crossfire objects.	1290	Functions and methods that extend core crossfire objects.
1088		1291
…		…
1094		1297
1095	=head3 cf::player	1298	=head3 cf::player
1096		1299
1097	=over 4	1300	=over 4
1098		1301
		1302	=item cf::player::num_playing
		1303
		1304	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1305
		1306	=cut
		1307
		1308	sub num_playing {
		1309	scalar grep
		1310	$_->ob->map
		1311	&& !$_->hidden
		1312	&& !$_->ob->flag (cf::FLAG_WIZ),
		1313	cf::player::list
		1314	}
		1315
1099	=item cf::player::find $login	1316	=item cf::player::find $login
1100		1317
1101	Returns the given player object, loading it if necessary (might block).	1318	Returns the given player object, loading it if necessary (might block).
1102		1319
1103	=cut	1320	=cut
1104		1321
1105	sub playerdir($) {	1322	sub playerdir($) {
1106	cf::localdir	1323	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1324	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1325	}
1112		1326
1113	sub path($) {	1327	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1328	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1329
1116	(playerdir $login) . "/$login.pl"	1330	(playerdir $login) . "/playerdata"
1117	}	1331	}
1118		1332
1119	sub find_active($) {	1333	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1334	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1335	and $cf::PLAYER{$_[0]}->active
…		…
1124		1338
1125	sub exists($) {	1339	sub exists($) {
1126	my ($login) = @_;	1340	my ($login) = @_;
1127		1341
1128	$cf::PLAYER{$login}	1342	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1343	or cf::sync_job { !aio_stat path $login }
1130	}	1344	}
1131		1345
1132	sub find($) {	1346	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1347	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1348	my $login = $_[0];
1135		1349
1136	my $guard = cf::lock_acquire "user_find:$login";	1350	my $guard = cf::lock_acquire "user_find:$login";
1137		1351
1138	$cf::PLAYER{$_[0]} || do {	1352	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1353	# rename old playerfiles to new ones
		1354	#TODO: remove when no longer required
		1355	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1356	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1357	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1358	aio_unlink +(playerdir $login) . "/$login.pl";
		1359
		1360	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1361	or return;
		1362
		1363	my $pl = cf::player::load_pl $f
		1364	or return;
		1365	local $cf::PLAYER_LOADING{$login} = $pl;
		1366	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1367	$cf::PLAYER{$login} = $pl
1142	}	1368	}
1143	}	1369	}
1144	}	1370	}
1145		1371
…		…
1155		1381
1156	aio_mkdir playerdir $pl, 0770;	1382	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1383	$pl->{last_save} = $cf::RUNTIME;
1158		1384
1159	$pl->save_pl ($path);	1385	$pl->save_pl ($path);
1160	Coro::cede;	1386	cf::cede_to_tick;
1161	}	1387	}
1162		1388
1163	sub new($) {	1389	sub new($) {
1164	my ($login) = @_;	1390	my ($login) = @_;
1165		1391
…		…
1171	$cf::PLAYER{$login} = $self;	1397	$cf::PLAYER{$login} = $self;
1172		1398
1173	$self	1399	$self
1174	}	1400	}
1175		1401
		1402	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1403
		1404	=cut
		1405
		1406	sub send_msg {
		1407	my $ns = shift->ns
		1408	or return;
		1409	$ns->send_msg (@_);
		1410	}
		1411
1176	=item $pl->quit_character	1412	=item $pl->quit_character
1177		1413
1178	Nukes the player without looking back. If logged in, the connection will	1414	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1415	be destroyed. May block for a long time.
1180		1416
1181	=cut	1417	=cut
1182		1418
1183	sub quit_character {	1419	sub quit_character {
1184	my ($pl) = @_;	1420	my ($pl) = @_;
		1421
		1422	my $name = $pl->ob->name;
1185		1423
1186	$pl->{deny_save} = 1;	1424	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1425	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1426
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1427	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1432	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1433	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1434	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1435	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1436	$pl->destroy;
		1437
		1438	my $prefix = qr<^~\Q$name\E/>;
		1439
		1440	# nuke player maps
		1441	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1442
1199	IO::AIO::aio_rmtree $temp;	1443	IO::AIO::aio_rmtree $temp;
		1444	}
		1445
		1446	=item $pl->kick
		1447
		1448	Kicks a player out of the game. This destroys the connection.
		1449
		1450	=cut
		1451
		1452	sub kick {
		1453	my ($pl, $kicker) = @_;
		1454
		1455	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1456	$pl->killer ("kicked");
		1457	$pl->ns->destroy;
1200	}	1458	}
1201		1459
1202	=item cf::player::list_logins	1460	=item cf::player::list_logins
1203		1461
1204	Returns am arrayref of all valid playernames in the system, can take a	1462	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1463	while and may block, so not sync_job-capable, ever.
1206		1464
1207	=cut	1465	=cut
1208		1466
1209	sub list_logins {	1467	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1468	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1469	or return [];
1212		1470
1213	my @logins;	1471	my @logins;
1214		1472
1215	for my $login (@$dirs) {	1473	for my $login (@$dirs) {
		1474	my $path = path $login;
		1475
		1476	# a .pst is a dead give-away for a valid player
		1477	unless (-e "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1478	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1479	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1480	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1481	}
1219		1482
1220	utf8::decode $login;	1483	utf8::decode $login;
1221	push @logins, $login;	1484	push @logins, $login;
1222	}	1485	}
1223		1486
1224	\@logins	1487	\@logins
1225	}	1488	}
1226		1489
1227	=item $player->maps	1490	=item $player->maps
1228		1491
1229	Returns an arrayref of cf::path's of all maps that are private for this	1492	Returns an arrayref of map paths that are private for this
1230	player. May block.	1493	player. May block.
1231		1494
1232	=cut	1495	=cut
1233		1496
1234	sub maps($) {	1497	sub maps($) {
1235	my ($pl) = @_;	1498	my ($pl) = @_;
		1499
		1500	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1501
1237	my $files = aio_readdir playerdir $pl	1502	my $files = aio_readdir playerdir $pl
1238	or return;	1503	or return;
1239		1504
1240	my @paths;	1505	my @paths;
1241		1506
1242	for (@$files) {	1507	for (@$files) {
1243	utf8::decode $_;	1508	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1509	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1510	next unless /^$PATH_SEP/o;
1246		1511
1247	s/$PATH_SEP/\//g;	1512	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1513	}
1250		1514
1251	\@paths	1515	\@paths
1252	}	1516	}
1253		1517
		1518	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1519
		1520	Expand crossfire pod fragments into protocol xml.
		1521
		1522	=cut
		1523
		1524	sub expand_cfpod {
		1525	((my $self), (local $_)) = @_;
		1526
		1527	# escape & and <
		1528	s/&/&amp;/g;
		1529	s/(?<![BIUGHT])</&lt;/g;
		1530
		1531	# this is buggy, it needs to properly take care of nested <'s
		1532
		1533	1 while
		1534	# replace B<>, I<>, U<> etc.
		1535	s/B<([^\>]*)>/<b>$1<\/b>/
		1536	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1537	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1538	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1539	# replace G<male|female> tags
		1540	|| s{G<([^>|]*)\|([^>]*)>}{
		1541	$self->gender ? $2 : $1
		1542	}ge
		1543	# replace H<hint text>
		1544	|| s{H<([^\>]*)>}
		1545	{
		1546	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1547	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1548	"")
		1549	[$self->{hintmode}]
		1550	}ge;
		1551
		1552	# create single paragraphs (very hackish)
		1553	s/(?<=\S)\n(?=\w)/ /g;
		1554
		1555	# compress some whitespace
		1556	s/\s+\n/\n/g; # ws line-ends
		1557	s/\n\n+/\n/g; # double lines
		1558	s/^\n+//; # beginning lines
		1559	s/\n+$//; # ending lines
		1560
		1561	$_
		1562	}
		1563
		1564	sub hintmode {
		1565	$_[0]{hintmode} = $_[1] if @_ > 1;
		1566	$_[0]{hintmode}
		1567	}
		1568
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1569	=item $player->ext_reply ($msgid, @msg)
1255		1570
1256	Sends an ext reply to the player.	1571	Sends an ext reply to the player.
1257		1572
1258	=cut	1573	=cut
1259		1574
1260	sub ext_reply($$$%) {	1575	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1576	my ($self, $id, @msg) = @_;
1262		1577
1263	$msg{msgid} = $id;	1578	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1579	}
1267		1580
1268	package cf;	1581	=item $player->ext_msg ($type, @msg)
		1582
		1583	Sends an ext event to the client.
		1584
		1585	=cut
		1586
		1587	sub ext_msg($$@) {
		1588	my ($self, $type, @msg) = @_;
		1589
		1590	$self->ns->ext_msg ($type, @msg);
		1591	}
		1592
		1593	=head3 cf::region
		1594
		1595	=over 4
		1596
		1597	=cut
		1598
		1599	package cf::region;
		1600
		1601	=item cf::region::find_by_path $path
		1602
		1603	Tries to decuce the likely region for a map knowing only its path.
		1604
		1605	=cut
		1606
		1607	sub find_by_path($) {
		1608	my ($path) = @_;
		1609
		1610	my ($match, $specificity);
		1611
		1612	for my $region (list) {
		1613	if ($region->{match} && $path =~ $region->{match}) {
		1614	($match, $specificity) = ($region, $region->specificity)
		1615	if $region->specificity > $specificity;
		1616	}
		1617	}
		1618
		1619	$match
		1620	}
1269		1621
1270	=back	1622	=back
1271
1272		1623
1273	=head3 cf::map	1624	=head3 cf::map
1274		1625
1275	=over 4	1626	=over 4
1276		1627
…		…
1279	package cf::map;	1630	package cf::map;
1280		1631
1281	use Fcntl;	1632	use Fcntl;
1282	use Coro::AIO;	1633	use Coro::AIO;
1283		1634
		1635	use overload
		1636	'""' => \&as_string,
		1637	fallback => 1;
		1638
1284	our $MAX_RESET = 3600;	1639	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1640	our $DEFAULT_RESET = 3000;
1286		1641
1287	sub generate_random_map {	1642	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1643	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1644	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1645	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1646	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1647	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1648	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1649	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1650	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1651	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1652	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1653	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1654	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1655	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1656	(cf::region::find $rmp->{region}), $rmp->{custom}
		1657	)
		1658	}
		1659
		1660	=item cf::map->register ($regex, $prio)
		1661
		1662	Register a handler for the map path matching the given regex at the
		1663	givne priority (higher is better, built-in handlers have priority 0, the
		1664	default).
		1665
		1666	=cut
		1667
		1668	sub register {
		1669	my (undef, $regex, $prio) = @_;
		1670	my $pkg = caller;
		1671
		1672	no strict;
		1673	push @{"$pkg\::ISA"}, __PACKAGE__;
		1674
		1675	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1676	}
		1677
		1678	# also paths starting with '/'
		1679	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1680
		1681	sub thawer_merge {
		1682	my ($self, $merge) = @_;
		1683
		1684	# we have to keep some variables in memory intact
		1685	local $self->{path};
		1686	local $self->{load_path};
		1687
		1688	$self->SUPER::thawer_merge ($merge);
		1689	}
		1690
		1691	sub normalise {
		1692	my ($path, $base) = @_;
		1693
		1694	$path = "$path"; # make sure its a string
		1695
		1696	$path =~ s/\.map$//;
		1697
		1698	# map plan:
		1699	#
		1700	# /! non-realised random map exit (special hack!)
		1701	# {... are special paths that are not being touched
		1702	# ?xxx/... are special absolute paths
		1703	# ?random/... random maps
		1704	# /... normal maps
		1705	# ~user/... per-player map of a specific user
		1706
		1707	$path =~ s/$PATH_SEP/\//go;
		1708
		1709	# treat it as relative path if it starts with
		1710	# something that looks reasonable
		1711	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1712	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1713
		1714	$base =~ s{[^/]+/?$}{};
		1715	$path = "$base/$path";
		1716	}
		1717
		1718	for ($path) {
		1719	redo if s{//}{/};
		1720	redo if s{/\.?/}{/};
		1721	redo if s{/[^/]+/\.\./}{/};
		1722	}
		1723
		1724	$path
		1725	}
		1726
		1727	sub new_from_path {
		1728	my (undef, $path, $base) = @_;
		1729
		1730	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1731
		1732	$path = normalise $path, $base;
		1733
		1734	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1735	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1736	my $self = bless cf::map::new, $pkg;
		1737	$self->{path} = $path; $self->path ($path);
		1738	$self->init; # pass $1 etc.
		1739	return $self;
		1740	}
		1741	}
		1742
		1743	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1744	()
		1745	}
		1746
		1747	sub init {
		1748	my ($self) = @_;
		1749
		1750	$self
		1751	}
		1752
		1753	sub as_string {
		1754	my ($self) = @_;
		1755
		1756	"$self->{path}"
		1757	}
		1758
		1759	# the displayed name, this is a one way mapping
		1760	sub visible_name {
		1761	&as_string
		1762	}
		1763
		1764	# the original (read-only) location
		1765	sub load_path {
		1766	my ($self) = @_;
		1767
		1768	"$MAPDIR/$self->{path}.map"
		1769	}
		1770
		1771	# the temporary/swap location
		1772	sub save_path {
		1773	my ($self) = @_;
		1774
		1775	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1776	"$TMPDIR/$path.map"
		1777	}
		1778
		1779	# the unique path, undef == no special unique path
		1780	sub uniq_path {
		1781	my ($self) = @_;
		1782
		1783	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1784	"$UNIQUEDIR/$path"
1304	}	1785	}
1305		1786
1306	# and all this just because we cannot iterate over	1787	# and all this just because we cannot iterate over
1307	# all maps in C++...	1788	# all maps in C++...
1308	sub change_all_map_light {	1789	sub change_all_map_light {
…		…
1310		1791
1311	$_->change_map_light ($change)	1792	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1793	for grep $_->outdoor, values %cf::MAP;
1313	}	1794	}
1314		1795
		1796	sub decay_objects {
		1797	my ($self) = @_;
		1798
		1799	return if $self->{deny_reset};
		1800
		1801	$self->do_decay_objects;
		1802	}
		1803
		1804	sub unlink_save {
		1805	my ($self) = @_;
		1806
		1807	utf8::encode (my $save = $self->save_path);
		1808	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1809	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1810	}
		1811
1315	sub try_load_header($) {	1812	sub load_header_from($) {
1316	my ($path) = @_;	1813	my ($self, $path) = @_;
1317		1814
1318	utf8::encode $path;	1815	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1816	my $f = new_from_file cf::object::thawer $path
1320	or return;	1817	or return;
1321		1818
1322	my $map = cf::map::new	1819	$self->_load_header ($f)
1323	or return;	1820	or return;
1324		1821
1325	# for better error messages only, will be overwritten	1822	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1823	$f->resolve_delayed_derefs;
1327		1824
1328	$map->load_header ($path)	1825	$self->{load_path} = $path;
		1826
		1827	1
		1828	}
		1829
		1830	sub load_header_orig {
		1831	my ($self) = @_;
		1832
		1833	$self->load_header_from ($self->load_path)
		1834	}
		1835
		1836	sub load_header_temp {
		1837	my ($self) = @_;
		1838
		1839	$self->load_header_from ($self->save_path)
		1840	}
		1841
		1842	sub prepare_temp {
		1843	my ($self) = @_;
		1844
		1845	$self->last_access ((delete $self->{last_access})
		1846	|| $cf::RUNTIME); #d#
		1847	# safety
		1848	$self->{instantiate_time} = $cf::RUNTIME
		1849	if $self->{instantiate_time} > $cf::RUNTIME;
		1850	}
		1851
		1852	sub prepare_orig {
		1853	my ($self) = @_;
		1854
		1855	$self->{load_original} = 1;
		1856	$self->{instantiate_time} = $cf::RUNTIME;
		1857	$self->last_access ($cf::RUNTIME);
		1858	$self->instantiate;
		1859	}
		1860
		1861	sub load_header {
		1862	my ($self) = @_;
		1863
		1864	if ($self->load_header_temp) {
		1865	$self->prepare_temp;
		1866	} else {
		1867	$self->load_header_orig
1329	or return;	1868	or return;
		1869	$self->prepare_orig;
		1870	}
1330		1871
1331	$map->{load_path} = $path;	1872	$self->{deny_reset} = 1
		1873	if $self->no_reset;
1332		1874
1333	$map	1875	$self->default_region (cf::region::find_by_path $self->{path})
		1876	unless $self->default_region;
		1877
		1878	1
1334	}	1879	}
1335		1880
1336	sub find;	1881	sub find;
1337	sub find {	1882	sub find {
1338	my ($path, $origin) = @_;	1883	my ($path, $origin) = @_;
1339		1884
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1885	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1886
		1887	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	1888	cf::lock_wait "map_find:$path";
1346		1889
1347	$cf::MAP{$key} || do {	1890	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1891	my $guard1 = cf::lock_acquire "map_find:$path";
		1892	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1349		1893
1350	# do it the slow way	1894	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1895	or return;
1369		1896
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1897	$map->{last_save} = $cf::RUNTIME;
1382		1898
1383	Coro::cede;	1899	$map->load_header
		1900	or return;
1384		1901
1385	if ($map->should_reset) {	1902	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1903	# doing this can freeze the server in a sync job, obviously
		1904	#$cf::WAIT_FOR_TICK->wait;
		1905	undef $guard1;
		1906	undef $guard2;
1386	$map->reset;	1907	$map->reset;
1387	undef $guard;
1388	$map = find $path	1908	return find $path;
1389	or return;
1390	}	1909	}
1391		1910
1392	$cf::MAP{$key} = $map	1911	$cf::MAP{$path} = $map
1393	}	1912	}
1394	}	1913	}
		1914
		1915	sub pre_load { }
		1916	sub post_load { }
1395		1917
1396	sub load {	1918	sub load {
1397	my ($self) = @_;	1919	my ($self) = @_;
1398		1920
		1921	local $self->{deny_reset} = 1; # loading can take a long time
		1922
1399	my $path = $self->{path};	1923	my $path = $self->{path};
		1924
		1925	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1926	my $guard = cf::lock_acquire "map_data:$path";
1401		1927
		1928	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1929	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		1930
1404	$self->in_memory (cf::MAP_LOADING);	1931	$self->in_memory (cf::MAP_LOADING);
1405		1932
1406	$self->alloc;	1933	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	1934
		1935	$self->pre_load;
		1936	cf::cede_to_tick;
		1937
		1938	my $f = new_from_file cf::object::thawer $self->{load_path};
		1939	$f->skip_block;
		1940	$self->_load_objects ($f)
1408	or return;	1941	or return;
1409		1942
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1943	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1944	if delete $self->{load_original};
1412		1945
1413	if (my $uniq = $path->uniq_path) {	1946	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1947	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1948	unless (aio_stat $uniq) {
		1949	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	1950	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1951	$self->_load_objects ($f);
		1952	$f->resolve_delayed_derefs;
		1953	}
1418	}	1954	}
1419	}	1955	}
1420		1956
1421	Coro::cede;	1957	$f->resolve_delayed_derefs;
1422		1958
		1959	cf::cede_to_tick;
1423	# now do the right thing for maps	1960	# now do the right thing for maps
1424	$self->link_multipart_objects;	1961	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1962	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	1963	unless $self->difficulty;
		1964	cf::cede_to_tick;
		1965
		1966	unless ($self->{deny_activate}) {
		1967	$self->decay_objects;
		1968	$self->fix_auto_apply;
		1969	$self->update_buttons;
		1970	cf::cede_to_tick;
		1971	$self->set_darkness_map;
		1972	cf::cede_to_tick;
1436	$self->activate;	1973	$self->activate;
1437	}	1974	}
1438		1975
1439	Coro::cede;	1976	$self->{last_save} = $cf::RUNTIME;
		1977	$self->last_access ($cf::RUNTIME);
1440		1978
1441	$self->in_memory (cf::MAP_IN_MEMORY);	1979	$self->in_memory (cf::MAP_IN_MEMORY);
		1980	}
		1981
		1982	$self->post_load;
		1983	}
		1984
		1985	sub customise_for {
		1986	my ($self, $ob) = @_;
		1987
		1988	return find "~" . $ob->name . "/" . $self->{path}
		1989	if $self->per_player;
		1990
		1991	# return find "?party/" . $ob->name . "/" . $self->{path}
		1992	# if $self->per_party;
		1993
		1994	$self
1442	}	1995	}
1443		1996
1444	# find and load all maps in the 3x3 area around a map	1997	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	1998	sub load_neighbours {
1446	my ($map) = @_;	1999	my ($map) = @_;
1447		2000
1448	my @diag; # diagonal neighbours	2001	my @neigh; # diagonal neighbours
1449		2002
1450	for (0 .. 3) {	2003	for (0 .. 3) {
1451	my $neigh = $map->tile_path ($_)	2004	my $neigh = $map->tile_path ($_)
1452	or next;	2005	or next;
1453	$neigh = find $neigh, $map	2006	$neigh = find $neigh, $map
1454	or next;	2007	or next;
1455	$neigh->load;	2008	$neigh->load;
1456		2009
		2010	push @neigh,
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2011	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2012	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}	2013	}
1460		2014
1461	for (@diag) {	2015	for (grep defined $_->[0], @neigh) {
		2016	my ($path, $origin) = @$_;
1462	my $neigh = find @$_	2017	my $neigh = find $path, $origin
1463	or next;	2018	or next;
1464	$neigh->load;	2019	$neigh->load;
1465	}	2020	}
1466	}	2021	}
1467		2022
…		…
1472	}	2027	}
1473		2028
1474	sub do_load_sync {	2029	sub do_load_sync {
1475	my ($map) = @_;	2030	my ($map) = @_;
1476		2031
		2032	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2033	if $Coro::current == $Coro::main;
		2034
1477	cf::sync_job { $map->load };	2035	cf::sync_job { $map->load };
1478	}	2036	}
1479		2037
1480	our %MAP_PREFETCH;	2038	our %MAP_PREFETCH;
		2039	our $MAP_PREFETCHER = undef;
		2040
		2041	sub find_async {
		2042	my ($path, $origin, $load) = @_;
		2043
		2044	$path = normalise $path, $origin && $origin->{path};
		2045
		2046	if (my $map = $cf::MAP{$path}) {
		2047	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2048	}
		2049
		2050	$MAP_PREFETCH{$path} |= $load;
		2051
1481	our $MAP_PREFETCHER = Coro::async {	2052	$MAP_PREFETCHER ||= cf::async {
1482	while () {	2053	$Coro::current->{desc} = "map prefetcher";
		2054
1483	while (%MAP_PREFETCH) {	2055	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2056	while (my ($k, $v) = each %MAP_PREFETCH) {
1485	or next;	2057	if (my $map = find $k) {
		2058	$map->load if $v;
		2059	}
		2060
1486	my $path = delete $MAP_PREFETCH{$key};	2061	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2062	}
1492	Coro::schedule;	2063	}
		2064	undef $MAP_PREFETCHER;
1493	}	2065	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2066	$MAP_PREFETCHER->prio (6);
1508		2067
1509	()	2068	()
1510	}	2069	}
1511		2070
1512	sub save {	2071	sub save {
1513	my ($self) = @_;	2072	my ($self) = @_;
1514		2073
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2074	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2075
1517	$self->{last_save} = $cf::RUNTIME;	2076	$self->{last_save} = $cf::RUNTIME;
1518		2077
1519	return unless $self->dirty;	2078	return unless $self->dirty;
1520		2079
1521	my $save = $self->{path}->save_path; utf8::encode $save;	2080	my $save = $self->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2081	my $uniq = $self->uniq_path; utf8::encode $uniq;
1523		2082
1524	$self->{load_path} = $save;	2083	$self->{load_path} = $save;
1525		2084
1526	return if $self->{deny_save};	2085	return if $self->{deny_save};
1527		2086
1528	local $self->{last_access} = $self->last_access;#d#	2087	local $self->{last_access} = $self->last_access;#d#
1529		2088
1530	cf::async {	2089	cf::async {
		2090	$Coro::current->{desc} = "map player save";
1531	$_->contr->save for $self->players;	2091	$_->contr->save for $self->players;
1532	};	2092	};
1533		2093
1534	if ($uniq) {	2094	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2095	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);	2096	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	2097	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2098	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}	2099	}
1540	}	2100	}
1541		2101
1542	sub swap_out {	2102	sub swap_out {
1543	my ($self) = @_;	2103	my ($self) = @_;
1544		2104
1545	# save first because save cedes	2105	# save first because save cedes
1546	$self->save;	2106	$self->save;
1547		2107
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2108	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2109
1550	return if $self->players;	2110	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2111	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};	2112	return if $self->{deny_save};
1553		2113
		2114	$self->in_memory (cf::MAP_SWAPPED);
		2115
		2116	$self->deactivate;
		2117	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2118	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2119	}
1557		2120
1558	sub reset_at {	2121	sub reset_at {
1559	my ($self) = @_;	2122	my ($self) = @_;
1560		2123
1561	# TODO: safety, remove and allow resettable per-player maps	2124	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2125	return 1e99 if $self->{deny_reset};
1564		2126
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2127	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2128	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2129
…		…
1572	my ($self) = @_;	2134	my ($self) = @_;
1573		2135
1574	$self->reset_at <= $cf::RUNTIME	2136	$self->reset_at <= $cf::RUNTIME
1575	}	2137	}
1576		2138
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2139	sub reset {
1599	my ($self) = @_;	2140	my ($self) = @_;
1600		2141
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2143
1603	return if $self->players;	2144	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2145
1606	warn "resetting map ", $self->path;#d#	2146	warn "resetting map ", $self->path;
		2147
		2148	$self->in_memory (cf::MAP_SWAPPED);
		2149
		2150	# need to save uniques path
		2151	unless ($self->{deny_save}) {
		2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2153
		2154	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2155	if $uniq;
		2156	}
1607		2157
1608	delete $cf::MAP{$self->path};	2158	delete $cf::MAP{$self->path};
1609		2159
		2160	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2161	$_->clear_links_to ($self) for values %cf::MAP;
		2162	$self->clear;
1611		2163
1612	$self->unlink_save;	2164	$self->unlink_save;
1613	$self->destroy;	2165	$self->destroy;
1614	}	2166	}
1615		2167
1616	my $nuke_counter = "aaaa";	2168	my $nuke_counter = "aaaa";
1617		2169
1618	sub nuke {	2170	sub nuke {
1619	my ($self) = @_;	2171	my ($self) = @_;
1620		2172
		2173	{
		2174	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2175
		2176	delete $cf::MAP{$self->path};
		2177
		2178	$self->unlink_save;
		2179
		2180	bless $self, "cf::map";
		2181	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2182	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2183	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2184	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2185
		2186	$cf::MAP{$self->path} = $self;
		2187	}
		2188
1624	$self->reset; # polite request, might not happen	2189	$self->reset; # polite request, might not happen
1625	}	2190	}
1626		2191
1627	sub customise_for {	2192	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2193
1630	if ($map->per_player) {	2194	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2195	maps. May block.
		2196
		2197	=cut
		2198
		2199	sub tmp_maps() {
1632	}	2200	[
		2201	map {
		2202	utf8::decode $_;
		2203	/\.map$/
		2204	? normalise $_
		2205	: ()
		2206	} @{ aio_readdir $TMPDIR or [] }
		2207	]
		2208	}
1633		2209
1634	$map	2210	=item $maps = cf::map::random_maps
		2211
		2212	Returns an arrayref with all map paths of currently instantiated and saved
		2213	random maps. May block.
		2214
		2215	=cut
		2216
		2217	sub random_maps() {
		2218	[
		2219	map {
		2220	utf8::decode $_;
		2221	/\.map$/
		2222	? normalise "?random/$_"
		2223	: ()
		2224	} @{ aio_readdir $RANDOMDIR or [] }
		2225	]
		2226	}
		2227
		2228	=item cf::map::unique_maps
		2229
		2230	Returns an arrayref of paths of all shared maps that have
		2231	instantiated unique items. May block.
		2232
		2233	=cut
		2234
		2235	sub unique_maps() {
		2236	[
		2237	map {
		2238	utf8::decode $_;
		2239	/\.map$/
		2240	? normalise $_
		2241	: ()
		2242	} @{ aio_readdir $UNIQUEDIR or [] }
		2243	]
1635	}	2244	}
1636		2245
1637	package cf;	2246	package cf;
1638		2247
1639	=back	2248	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2266	map { $_, inv_recursive_ $_->inv } @_
1658	}	2267	}
1659		2268
1660	sub inv_recursive {	2269	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2270	inv_recursive_ inv $_[0]
		2271	}
		2272
		2273	=item $ref = $ob->ref
		2274
		2275	creates and returns a persistent reference to an objetc that can be stored as a string.
		2276
		2277	=item $ob = cf::object::deref ($refstring)
		2278
		2279	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2280	even if the object actually exists. May block.
		2281
		2282	=cut
		2283
		2284	sub deref {
		2285	my ($ref) = @_;
		2286
		2287	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2288	my ($uuid, $name) = ($1, $2);
		2289	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2290	or return;
		2291	$pl->ob->uuid eq $uuid
		2292	or return;
		2293
		2294	$pl->ob
		2295	} else {
		2296	warn "$ref: cannot resolve object reference\n";
		2297	undef
		2298	}
1662	}	2299	}
1663		2300
1664	package cf;	2301	package cf;
1665		2302
1666	=back	2303	=back
…		…
1685		2322
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2323	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2324
1688	if ($self->{record_replies}) {	2325	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2326	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2327
1690	} else {	2328	} else {
		2329	my $pl = $self->contr;
		2330
		2331	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2332	my $dialog = $pl->{npc_dialog};
		2333	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2334
		2335	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2336	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2337	$self->message ($msg, $flags);
		2338	}
1693	}	2339	}
		2340	}
		2341
		2342	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2343
		2344	=cut
		2345
		2346	sub cf::object::send_msg {
		2347	my $pl = shift->contr
		2348	or return;
		2349	$pl->send_msg (@_);
1694	}	2350	}
1695		2351
1696	=item $player_object->may ("access")	2352	=item $player_object->may ("access")
1697		2353
1698	Returns wether the given player is authorized to access resource "access"	2354	Returns wether the given player is authorized to access resource "access"
…		…
1711		2367
1712	=item $player_object->enter_link	2368	=item $player_object->enter_link
1713		2369
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2370	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2371
1716	The player should be reaosnably safe there for short amounts of time. You	2372	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2373	I<MUST> call C<leave_link> as soon as possible, though.
1718		2374
		2375	Will never block.
		2376
1719	=item $player_object->leave_link ($map, $x, $y)	2377	=item $player_object->leave_link ($map, $x, $y)
1720		2378
1721	Moves the player out of the specila link map onto the given map. If the	2379	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2380	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2381	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2382	fails, to the emergency map position.
1725		2383
1726	Might block.	2384	Might block.
1727		2385
1728	=cut	2386	=cut
		2387
		2388	sub link_map {
		2389	unless ($LINK_MAP) {
		2390	$LINK_MAP = cf::map::find "{link}"
		2391	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2392	$LINK_MAP->load;
		2393	}
		2394
		2395	$LINK_MAP
		2396	}
1729		2397
1730	sub cf::object::player::enter_link {	2398	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2399	my ($self) = @_;
1732		2400
1733	$self->deactivate_recursive;	2401	$self->deactivate_recursive;
1734		2402
1735	return if $self->map == $LINK_MAP;	2403	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2404
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2405	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2406	if $self->map && $self->map->{path} ne "{link}";
1739		2407
1740	$self->enter_map ($LINK_MAP, 20, 20);	2408	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2409	}
1742		2410
1743	sub cf::object::player::leave_link {	2411	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2412	my ($self, $map, $x, $y) = @_;
		2413
		2414	return unless $self->contr->active;
1745		2415
1746	my $link_pos = delete $self->{_link_pos};	2416	my $link_pos = delete $self->{_link_pos};
1747		2417
1748	unless ($map) {	2418	unless ($map) {
1749	# restore original map position	2419	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2433	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2434	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2435	if $x <=0 && $y <= 0;
1766		2436
1767	$map->load;	2437	$map->load;
1768	$map->load_diag;	2438	$map->load_neighbours;
1769		2439
1770	return unless $self->contr->active;	2440	return unless $self->contr->active;
1771	$self->activate_recursive;	2441	$self->activate_recursive;
		2442
		2443	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2444	$self->enter_map ($map, $x, $y);
1773	}	2445	}
1774		2446
1775	cf::player->attach (	2447	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2448
1779	# abort map switching before logout	2449	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2450	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2451	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2452	the new (success) or old (failed) map position. In either case, $done will
1783	};	2453	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2454
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2455	=cut
		2456
		2457	our $GOTOGEN;
1810		2458
1811	sub cf::object::player::goto {	2459	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2460	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2461
1814	$path = new cf::path $path;	2462	# do generation counting so two concurrent goto's will be executed in-order
1815	$path ne "/" or Carp::cluck ("oy");#d#	2463	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2464
1817	$self->enter_link;	2465	$self->enter_link;
1818		2466
1819	(async {	2467	(async {
1820	my $map = cf::map::find $path->as_string;	2468	$Coro::current->{desc} = "player::goto $path $x $y";
		2469
		2470	# *tag paths override both path and x|y
		2471	if ($path =~ /^\*(.*)$/) {
		2472	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2473	my $ob = $obs[rand @obs];
		2474
		2475	# see if we actually can go there
		2476	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2477	$ob = $obs[rand @obs];
		2478	} else {
		2479	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2480	}
		2481	# else put us there anyways for now #d#
		2482
		2483	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2484	} else {
		2485	($path, $x, $y) = (undef, undef, undef);
		2486	}
		2487	}
		2488
		2489	my $map = eval {
		2490	my $map = defined $path ? cf::map::find $path : undef;
		2491
		2492	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2493	$map = $map->customise_for ($self);
1822		2494	$map = $check->($map) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2495	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2496	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	}
1827		2498
		2499	$map
		2500	};
		2501
		2502	if ($@) {
		2503	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2504	LOG llevError | logBacktrace, Carp::longmess $@;
		2505	}
		2506
		2507	if ($gen == $self->{_goto_generation}) {
		2508	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2509	$self->leave_link ($map, $x, $y);
		2510	}
		2511
		2512	$done->() if $done;
1829	})->prio (1);	2513	})->prio (1);
1830	}	2514	}
1831		2515
1832	=item $player_object->enter_exit ($exit_object)	2516	=item $player_object->enter_exit ($exit_object)
1833		2517
…		…
1835		2519
1836	sub parse_random_map_params {	2520	sub parse_random_map_params {
1837	my ($spec) = @_;	2521	my ($spec) = @_;
1838		2522
1839	my $rmp = { # defaults	2523	my $rmp = { # defaults
1840	xsize => 10,	2524	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2525	ysize => (cf::rndm 15, 40),
		2526	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2527	#layout => string,
1842	};	2528	};
1843		2529
1844	for (split /\n/, $spec) {	2530	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2531	my ($k, $v) = split /\s+/, $_, 2;
1846		2532
…		…
1850	$rmp	2536	$rmp
1851	}	2537	}
1852		2538
1853	sub prepare_random_map {	2539	sub prepare_random_map {
1854	my ($exit) = @_;	2540	my ($exit) = @_;
		2541
		2542	my $guard = cf::lock_acquire "exit_prepare:$exit";
1855		2543
1856	# all this does is basically replace the /! path by	2544	# all this does is basically replace the /! path by
1857	# a new random map path (?random/...) with a seed	2545	# a new random map path (?random/...) with a seed
1858	# that depends on the exit object	2546	# that depends on the exit object
1859		2547
1860	my $rmp = parse_random_map_params $exit->msg;	2548	my $rmp = parse_random_map_params $exit->msg;
1861		2549
1862	if ($exit->map) {	2550	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2551	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2552	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2553	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2554	$rmp->{origin_y} = $exit->y;
1867	}	2555	}
1868		2556
1869	$rmp->{random_seed} ||= $exit->random_seed;	2557	$rmp->{random_seed} ||= $exit->random_seed;
1870		2558
1871	my $data = cf::to_json $rmp;	2559	my $data = cf::to_json $rmp;
1872	my $md5 = Digest::MD5::md5_hex $data;	2560	my $md5 = Digest::MD5::md5_hex $data;
		2561	my $meta = "$RANDOMDIR/$md5.meta";
1873		2562
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2563	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2564	aio_write $fh, 0, (length $data), $data, 0;
		2565	undef $fh;
		2566	aio_rename "$meta~", $meta;
1876		2567
1877	$exit->slaying ("?random/$md5");	2568	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2569	$exit->msg (undef);
1879	}	2570	}
1880	}	2571	}
…		…
1882	sub cf::object::player::enter_exit {	2573	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2574	my ($self, $exit) = @_;
1884		2575
1885	return unless $self->type == cf::PLAYER;	2576	return unless $self->type == cf::PLAYER;
1886		2577
		2578	if ($exit->slaying eq "/!") {
		2579	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2580	# the problem is that $exit might not survive long enough
		2581	# so it needs to be done right now, right here
		2582	cf::sync_job { prepare_random_map $exit };
		2583	}
		2584
		2585	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2586	my $hp = $exit->stats->hp;
		2587	my $sp = $exit->stats->sp;
		2588
1887	$self->enter_link;	2589	$self->enter_link;
1888		2590
		2591	# if exit is damned, update players death & WoR home-position
		2592	$self->contr->savebed ($slaying, $hp, $sp)
		2593	if $exit->flag (FLAG_DAMNED);
		2594
1889	(async {	2595	(async {
		2596	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2597
1890	$self->deactivate_recursive; # just to be sure	2598	$self->deactivate_recursive; # just to be sure
1891	unless (eval {	2599	unless (eval {
1892	prepare_random_map $exit	2600	$self->goto ($slaying, $hp, $sp);
1893	if $exit->slaying eq "/!";
1894
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1897		2601
1898	1;	2602	1;
1899	}) {	2603	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2604	$self->message ("Something went wrong deep within the crossfire server. "
1901	. "I'll try to bring you back to the map you were before. "	2605	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2606	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2607	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2608
1905	warn "ERROR in enter_exit: $@";	2609	warn "ERROR in enter_exit: $@";
1906	$self->leave_link;	2610	$self->leave_link;
1907	}	2611	}
1908	})->prio (1);	2612	})->prio (1);
…		…
1921		2625
1922	sub cf::client::send_drawinfo {	2626	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2627	my ($self, $text, $flags) = @_;
1924		2628
1925	utf8::encode $text;	2629	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2630	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2631	}
1928		2632
		2633	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2634
		2635	Send a drawinfo or msg packet to the client, formatting the msg for the
		2636	client if neccessary. C<$type> should be a string identifying the type of
		2637	the message, with C<log> being the default. If C<$color> is negative, suppress
		2638	the message unless the client supports the msg packet.
		2639
		2640	=cut
		2641
		2642	our %CHANNEL = (
		2643	"c/identify" => {
		2644	id => "infobox",
		2645	title => "Identify",
		2646	reply => undef,
		2647	tooltip => "Items recently identified",
		2648	},
		2649	"c/examine" => {
		2650	id => "infobox",
		2651	title => "Examine",
		2652	reply => undef,
		2653	tooltip => "Signs and other items you examined",
		2654	},
		2655	"c/lookat" => {
		2656	id => "infobox",
		2657	title => "Look",
		2658	reply => undef,
		2659	tooltip => "What you saw there",
		2660	},
		2661	);
		2662
		2663	sub cf::client::send_msg {
		2664	my ($self, $channel, $msg, $color, @extra) = @_;
		2665
		2666	$msg = $self->pl->expand_cfpod ($msg);
		2667
		2668	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2669
		2670	# check predefined channels, for the benefit of C
		2671	if ($CHANNEL{$channel}) {
		2672	$channel = $CHANNEL{$channel};
		2673
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676
		2677	$channel = $channel->{id};
		2678
		2679	} elsif (ref $channel) {
		2680	# send meta info to client, if not yet sent
		2681	unless (exists $self->{channel}{$channel->{id}}) {
		2682	$self->{channel}{$channel->{id}} = $channel;
		2683	$self->ext_msg (channel_info => $channel)
		2684	if $self->can_msg;
		2685	}
		2686
		2687	$channel = $channel->{id};
		2688	}
		2689
		2690	return unless @extra || length $msg;
		2691
		2692	if ($self->can_msg) {
		2693	# default colour, mask it out
		2694	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2695	if $color & cf::NDI_DEF;
		2696
		2697	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2698	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2699	} else {
		2700	if ($color >= 0) {
		2701	# replace some tags by gcfclient-compatible ones
		2702	for ($msg) {
		2703	1 while
		2704	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2705	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2706	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2707	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2708	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2709	}
		2710
		2711	$color &= cf::NDI_COLOR_MASK;
		2712
		2713	utf8::encode $msg;
		2714
		2715	if (0 && $msg =~ /\[/) {
		2716	# COMMAND/INFO
		2717	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2718	} else {
		2719	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2720	$self->send_packet ("drawinfo $color $msg")
		2721	}
		2722	}
		2723	}
		2724	}
		2725
		2726	=item $client->ext_msg ($type, @msg)
		2727
		2728	Sends an ext event to the client.
		2729
		2730	=cut
		2731
		2732	sub cf::client::ext_msg($$@) {
		2733	my ($self, $type, @msg) = @_;
		2734
		2735	if ($self->extcmd == 2) {
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2737	} elsif ($self->extcmd == 1) { # TODO: remove
		2738	push @msg, msgtype => "event_$type";
		2739	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2740	}
		2741	}
		2742
		2743	=item $client->ext_reply ($msgid, @msg)
		2744
		2745	Sends an ext reply to the client.
		2746
		2747	=cut
		2748
		2749	sub cf::client::ext_reply($$@) {
		2750	my ($self, $id, @msg) = @_;
		2751
		2752	if ($self->extcmd == 2) {
		2753	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2754	} elsif ($self->extcmd == 1) {
		2755	#TODO: version 1, remove
		2756	unshift @msg, msgtype => "reply", msgid => $id;
		2757	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2758	}
		2759	}
1929		2760
1930	=item $success = $client->query ($flags, "text", \&cb)	2761	=item $success = $client->query ($flags, "text", \&cb)
1931		2762
1932	Queues a query to the client, calling the given callback with	2763	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2764	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2765	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		2766
1936	Queries can fail, so check the return code. Or don't, as queries will become	2767	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	2768	become reliable at some point in the future.
1938		2769
1939	=cut	2770	=cut
1940		2771
1941	sub cf::client::query {	2772	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	2773	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	2781	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2782	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		2783
1953	$self->send_packet ($self->{query_queue}[0][0])	2784	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	2785	if @{ $self->{query_queue} } == 1;
		2786
		2787	1
1955	}	2788	}
1956		2789
1957	cf::client->attach (	2790	cf::client->attach (
		2791	on_connect => sub {
		2792	my ($ns) = @_;
		2793
		2794	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2795	},
1958	on_reply => sub {	2796	on_reply => sub {
1959	my ($ns, $msg) = @_;	2797	my ($ns, $msg) = @_;
1960		2798
1961	# this weird shuffling is so that direct followup queries	2799	# this weird shuffling is so that direct followup queries
1962	# get handled first	2800	# get handled first
1963	my $queue = delete $ns->{query_queue}	2801	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	2802	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		2803
1966	(shift @$queue)->[1]->($msg);	2804	(shift @$queue)->[1]->($msg);
		2805	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		2806
1968	push @{ $ns->{query_queue} }, @$queue;	2807	push @{ $ns->{query_queue} }, @$queue;
1969		2808
1970	if (@{ $ns->{query_queue} } == @$queue) {	2809	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	2810	if (@$queue) {
…		…
1973	} else {	2812	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2813	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	2814	}
1976	}	2815	}
1977	},	2816	},
		2817	on_exticmd => sub {
		2818	my ($ns, $buf) = @_;
		2819
		2820	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2821
		2822	if (ref $msg) {
		2823	my ($type, $reply, @payload) =
		2824	"ARRAY" eq ref $msg
		2825	? @$msg
		2826	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2827
		2828	my @reply;
		2829
		2830	if (my $cb = $EXTICMD{$type}) {
		2831	@reply = $cb->($ns, @payload);
		2832	}
		2833
		2834	$ns->ext_reply ($reply, @reply)
		2835	if $reply;
		2836
		2837	} else {
		2838	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2839	}
		2840
		2841	cf::override;
		2842	},
1978	);	2843	);
1979		2844
1980	=item $client->async (\&cb)	2845	=item $client->async (\&cb)
1981		2846
1982	Create a new coroutine, running the specified callback. The coroutine will	2847	Create a new coroutine, running the specified callback. The coroutine will
…		…
2023	our $safe = new Safe "safe";	2888	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	2889	our $safe_hole = new Safe::Hole;
2025		2890
2026	$SIG{FPE} = 'IGNORE';	2891	$SIG{FPE} = 'IGNORE';
2027		2892
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2893	$safe->permit_only (Opcode::opset qw(
		2894	:base_core :base_mem :base_orig :base_math
		2895	grepstart grepwhile mapstart mapwhile
		2896	sort time
		2897	));
2029		2898
2030	# here we export the classes and methods available to script code	2899	# here we export the classes and methods available to script code
2031		2900
2032	=pod	2901	=pod
2033		2902
2034	The following fucntions and emthods are available within a safe environment:	2903	The following functions and methods are available within a safe environment:
2035		2904
2036	cf::object contr pay_amount pay_player map	2905	cf::object
		2906	contr pay_amount pay_player map x y force_find force_add destroy
		2907	insert remove name archname title slaying race decrease_ob_nr
		2908
2037	cf::object::player player	2909	cf::object::player
2038	cf::player peaceful	2910	player
2039	cf::map trigger	2911
		2912	cf::player
		2913	peaceful
		2914
		2915	cf::map
		2916	trigger
2040		2917
2041	=cut	2918	=cut
2042		2919
2043	for (	2920	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	2921	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2922	insert remove inv name archname title slaying race
		2923	decrease_ob_nr destroy)],
2045	["cf::object::player" => qw(player)],	2924	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	2925	["cf::player" => qw(peaceful)],
2047	["cf::map" => qw(trigger)],	2926	["cf::map" => qw(trigger)],
2048	) {	2927	) {
2049	no strict 'refs';	2928	no strict 'refs';
…		…
2120	=back	2999	=back
2121		3000
2122	=cut	3001	=cut
2123		3002
2124	#############################################################################	3003	#############################################################################
		3004	# the server's init and main functions
2125		3005
2126	=head2 EXTENSION DATABASE SUPPORT	3006	sub load_facedata($) {
		3007	my ($path) = @_;
2127		3008
2128	Crossfire maintains a very simple database for extension use. It can	3009	# HACK to clear player env face cache, we need some signal framework
2129	currently store anything that can be serialised using Storable, which	3010	# for this (global event?)
2130	excludes objects.	3011	%ext::player_env::MUSIC_FACE_CACHE = ();
2131		3012
2132	The parameter C<$family> should best start with the name of the extension	3013	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2133	using it, it should be unique.
2134		3014
2135	=over 4	3015	warn "loading facedata from $path\n";
2136		3016
2137	=item $hashref = cf::db_get $family	3017	my $facedata;
		3018	0 < aio_load $path, $facedata
		3019	or die "$path: $!";
2138		3020
2139	Return a hashref for use by the extension C<$family>, which can be	3021	$facedata = Coro::Storable::thaw $facedata;
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142		3022
2143	=item $value = cf::db_get $family => $key	3023	$facedata->{version} == 2
		3024	or cf::cleanup "$path: version mismatch, cannot proceed.";
2144		3025
2145	Returns a single value from the database	3026	# patch in the exptable
2146		3027	$facedata->{resource}{"res/exp_table"} = {
2147	=item cf::db_put $family => $hashref	3028	type => FT_RSRC,
2148		3029	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}
2175
2176	my $pid;
2177
2178	sub db_save() {
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	3030	};
		3031	cf::cede_to_tick;
2198		3032
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}	3033	{
		3034	my $faces = $facedata->{faceinfo};
2203		3035
2204	sub db_get($;$) {	3036	while (my ($face, $info) = each %$faces) {
2205	@_ >= 2	3037	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206	? $DB->{$_[0]}{$_[1]}	3038	cf::face::set_visibility $idx, $info->{visibility};
2207	: ($DB->{$_[0]} ||= { })	3039	cf::face::set_magicmap $idx, $info->{magicmap};
2208	}	3040	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3041	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2209		3042
2210	sub db_put($$;$) {	3043	cf::cede_to_tick;
2211	if (@_ >= 3) {
2212	$DB->{$_[0]}{$_[1]} = $_[2];
2213	} else {
2214	$DB->{$_[0]} = $_[1];
2215	}
2216	db_dirty;
2217	}
2218
2219	cf::global->attach (
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3044	}
2224	);
2225	}
2226		3045
2227	#############################################################################	3046	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	3047	next unless $info->{smooth};
		3048	my $idx = cf::face::find $face
		3049	or next;
		3050	if (my $smooth = cf::face::find $info->{smooth}) {
		3051	cf::face::set_smooth $idx, $smooth;
		3052	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3053	} else {
		3054	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3055	}
2229		3056
2230	sub cfg_load {	3057	cf::cede_to_tick;
		3058	}
		3059	}
		3060
		3061	{
		3062	my $anims = $facedata->{animinfo};
		3063
		3064	while (my ($anim, $info) = each %$anims) {
		3065	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3066	cf::cede_to_tick;
		3067	}
		3068
		3069	cf::anim::invalidate_all; # d'oh
		3070	}
		3071
		3072	{
		3073	# TODO: for gcfclient pleasure, we should give resources
		3074	# that gcfclient doesn't grok a >10000 face index.
		3075	my $res = $facedata->{resource};
		3076
		3077	my $soundconf = delete $res->{"res/sound.conf"};
		3078
		3079	while (my ($name, $info) = each %$res) {
		3080	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3081	my $data;
		3082
		3083	if ($info->{type} & 1) {
		3084	# prepend meta info
		3085
		3086	my $meta = $enc->encode ({
		3087	name => $name,
		3088	%{ $info->{meta} || {} },
		3089	});
		3090
		3091	$data = pack "(w/a*)*", $meta, $info->{data};
		3092	} else {
		3093	$data = $info->{data};
		3094	}
		3095
		3096	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3097	cf::face::set_type $idx, $info->{type};
		3098
		3099	cf::cede_to_tick;
		3100	}
		3101
		3102	if ($soundconf) {
		3103	$soundconf = $enc->decode (delete $soundconf->{data});
		3104
		3105	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3106	my $sound = $soundconf->{compat}[$_]
		3107	or next;
		3108
		3109	my $face = cf::face::find "sound/$sound->[1]";
		3110	cf::sound::set $sound->[0] => $face;
		3111	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3112	}
		3113
		3114	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3115	my $face = cf::face::find "sound/$v";
		3116	cf::sound::set $k => $face;
		3117	}
		3118	}
		3119	}
		3120
		3121	1
		3122	}
		3123
		3124	register_exticmd fx_want => sub {
		3125	my ($ns, $want) = @_;
		3126
		3127	while (my ($k, $v) = each %$want) {
		3128	$ns->fx_want ($k, $v);
		3129	}
		3130	};
		3131
		3132	sub reload_regions {
		3133	# HACK to clear player env face cache, we need some signal framework
		3134	# for this (global event?)
		3135	%ext::player_env::MUSIC_FACE_CACHE = ();
		3136
		3137	load_resource_file "$MAPDIR/regions"
		3138	or die "unable to load regions file\n";
		3139
		3140	for (cf::region::list) {
		3141	$_->{match} = qr/$_->{match}/
		3142	if exists $_->{match};
		3143	}
		3144	}
		3145
		3146	sub reload_facedata {
		3147	load_facedata "$DATADIR/facedata"
		3148	or die "unable to load facedata\n";
		3149	}
		3150
		3151	sub reload_archetypes {
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	#d# NEED to laod twice to resolve forward references
		3155	# this really needs to be done in an extra post-pass
		3156	# (which needs to be synchronous, so solve it differently)
		3157	load_resource_file "$DATADIR/archetypes"
		3158	or die "unable to load archetypes\n";
		3159	}
		3160
		3161	sub reload_treasures {
		3162	load_resource_file "$DATADIR/treasures"
		3163	or die "unable to load treasurelists\n";
		3164	}
		3165
		3166	sub reload_resources {
		3167	warn "reloading resource files...\n";
		3168
		3169	reload_regions;
		3170	reload_facedata;
		3171	#reload_archetypes;#d#
		3172	reload_archetypes;
		3173	reload_treasures;
		3174
		3175	warn "finished reloading resource files\n";
		3176	}
		3177
		3178	sub init {
		3179	reload_resources;
		3180	}
		3181
		3182	sub reload_config {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3183	open my $fh, "<:utf8", "$CONFDIR/config"
2232	or return;	3184	or return;
2233		3185
2234	local $/;	3186	local $/;
2235	*CFG = YAML::Syck::Load <$fh>;	3187	*CFG = YAML::Syck::Load <$fh>;
2236		3188
…		…
2250		3202
2251	sub main {	3203	sub main {
2252	# we must not ever block the main coroutine	3204	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3205	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3206	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3207	(async {
		3208	$Coro::current->{desc} = "IDLE BUG HANDLER";
2255	async { Event::one_event };	3209	Event::one_event;
		3210	})->prio (Coro::PRIO_MAX);
2256	};	3211	};
2257		3212
2258	cfg_load;	3213	reload_config;
2259	db_load;	3214	db_init;
2260	load_extensions;	3215	load_extensions;
		3216
		3217	$TICK_WATCHER->start;
2261	Event::loop;	3218	Event::loop;
2262	}	3219	}
2263		3220
2264	#############################################################################	3221	#############################################################################
2265	# initialisation and cleanup	3222	# initialisation and cleanup
2266		3223
2267	# install some emergency cleanup handlers	3224	# install some emergency cleanup handlers
2268	BEGIN {	3225	BEGIN {
2269	for my $signal (qw(INT HUP TERM)) {	3226	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3227	Event->signal (
		3228	reentrant => 0,
2271	data => WF_AUTOCANCEL,	3229	data => WF_AUTOCANCEL,
2272	signal => $signal,	3230	signal => $signal,
		3231	prio => 0,
2273	cb => sub {	3232	cb => sub {
2274	cf::cleanup "SIG$signal";	3233	cf::cleanup "SIG$signal";
2275	},	3234	},
2276	);	3235	);
2277	}	3236	}
2278	}	3237	}
2279		3238
		3239	sub write_runtime {
		3240	my $runtime = "$LOCALDIR/runtime";
		3241
		3242	# first touch the runtime file to show we are still running:
		3243	# the fsync below can take a very very long time.
		3244
		3245	IO::AIO::aio_utime $runtime, undef, undef;
		3246
		3247	my $guard = cf::lock_acquire "write_runtime";
		3248
		3249	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3250	or return;
		3251
		3252	my $value = $cf::RUNTIME + 90 + 10;
		3253	# 10 is the runtime save interval, for a monotonic clock
		3254	# 60 allows for the watchdog to kill the server.
		3255
		3256	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3257	and return;
		3258
		3259	# always fsync - this file is important
		3260	aio_fsync $fh
		3261	and return;
		3262
		3263	# touch it again to show we are up-to-date
		3264	aio_utime $fh, undef, undef;
		3265
		3266	close $fh
		3267	or return;
		3268
		3269	aio_rename "$runtime~", $runtime
		3270	and return;
		3271
		3272	warn "runtime file written.\n";
		3273
		3274	1
		3275	}
		3276
2280	sub emergency_save() {	3277	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3278	my $freeze_guard = cf::freeze_mainloop;
2282		3279
2283	warn "enter emergency perl save\n";	3280	warn "enter emergency perl save\n";
2284		3281
2285	cf::sync_job {	3282	cf::sync_job {
2286	# use a peculiar iteration method to avoid tripping on perl	3283	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3284	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3285	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3286	warn "begin emergency player save\n";
2290	for my $login (keys %cf::PLAYER) {	3287	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3288	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3289	$pl->valid or next;
		3290	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	3291	$pl->save;
2294	}	3292	}
2295	warn "end emergency player save\n";	3293	warn "end emergency player save\n";
2296		3294
2297	warn "begin emergency map save\n";	3295	warn "begin emergency map save\n";
…		…
2299	my $map = $cf::MAP{$path} or next;	3297	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3298	$map->valid or next;
2301	$map->save;	3299	$map->save;
2302	}	3300	}
2303	warn "end emergency map save\n";	3301	warn "end emergency map save\n";
		3302
		3303	warn "begin emergency database checkpoint\n";
		3304	BDB::db_env_txn_checkpoint $DB_ENV;
		3305	warn "end emergency database checkpoint\n";
2304	};	3306	};
2305		3307
2306	warn "leave emergency perl save\n";	3308	warn "leave emergency perl save\n";
2307	}	3309	}
2308		3310
		3311	sub post_cleanup {
		3312	my ($make_core) = @_;
		3313
		3314	warn Carp::longmess "post_cleanup backtrace"
		3315	if $make_core;
		3316	}
		3317
2309	sub reload() {	3318	sub do_reload_perl() {
2310	# can/must only be called in main	3319	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3320	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine\n";	3321	warn "can only reload from main coroutine";
2313	return;	3322	return;
2314	}	3323	}
2315		3324
2316	warn "reloading...";	3325	warn "reloading...";
2317		3326
2318	my $guard = freeze_mainloop;	3327	warn "entering sync_job";
		3328
		3329	cf::sync_job {
		3330	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3331	cf::emergency_save;
		3332	cf::write_runtime; # external watchdog should not bark
2320		3333
2321	eval {	3334	warn "syncing database to disk";
		3335	BDB::db_env_txn_checkpoint $DB_ENV;
		3336
2322	# if anything goes wrong in here, we should simply crash as we already saved	3337	# if anything goes wrong in here, we should simply crash as we already saved
2323		3338
2324	# cancel all watchers	3339	warn "cancelling all WF_AUTOCANCEL watchers";
2325	for (Event::all_watchers) {	3340	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;	3341	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}	3342	}
2328		3343
		3344	warn "flushing outstanding aio requests";
		3345	for (;;) {
		3346	BDB::flush;
		3347	IO::AIO::flush;
		3348	Coro::cede;
		3349	last unless IO::AIO::nreqs || BDB::nreqs;
		3350	warn "iterate...";
		3351	}
		3352
		3353	++$RELOAD;
		3354
2329	# cancel all extension coros	3355	warn "cancelling all extension coros";
2330	$_->cancel for values %EXT_CORO;	3356	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3357	%EXT_CORO = ();
2332		3358
2333	# unload all extensions	3359	warn "removing commands";
2334	for (@exts) {	3360	%COMMAND = ();
		3361
		3362	warn "removing ext/exti commands";
		3363	%EXTCMD = ();
		3364	%EXTICMD = ();
		3365
		3366	warn "unloading/nuking all extensions";
		3367	for my $pkg (@EXTS) {
2335	warn "unloading <$_>";	3368	warn "... unloading $pkg";
2336	unload_extension $_;	3369
		3370	if (my $cb = $pkg->can ("unload")) {
		3371	eval {
		3372	$cb->($pkg);
		3373	1
		3374	} or warn "$pkg unloaded, but with errors: $@";
2337	}	3375	}
2338		3376
		3377	warn "... nuking $pkg";
		3378	Symbol::delete_package $pkg;
		3379	}
		3380
2339	# unload all modules loaded from $LIBDIR	3381	warn "unloading all perl modules loaded from $LIBDIR";
2340	while (my ($k, $v) = each %INC) {	3382	while (my ($k, $v) = each %INC) {
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3383	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342		3384
2343	warn "removing <$k>";	3385	warn "... unloading $k";
2344	delete $INC{$k};	3386	delete $INC{$k};
2345		3387
2346	$k =~ s/\.pm$//;	3388	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;	3389	$k =~ s/\//::/g;
2348		3390
…		…
2351	}	3393	}
2352		3394
2353	Symbol::delete_package $k;	3395	Symbol::delete_package $k;
2354	}	3396	}
2355		3397
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	3398	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3399	Symbol::delete_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3400	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3401
2364	# remove register_script_function callbacks
2365	# TODO
2366
2367	# unload cf.pm "a bit"	3402	warn "unloading cf.pm \"a bit\"";
2368	delete $INC{"cf.pm"};	3403	delete $INC{"cf.pm"};
		3404	delete $INC{"cf/pod.pm"};
2369		3405
2370	# don't, removes xs symbols, too,	3406	# don't, removes xs symbols, too,
2371	# and global variables created in xs	3407	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	3408	#Symbol::delete_package __PACKAGE__;
2373		3409
2374	# reload cf.pm	3410	warn "unload completed, starting to reload now";
		3411
2375	warn "reloading cf.pm";	3412	warn "reloading cf.pm";
2376	require cf;	3413	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3414	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2378		3415
2379	# load config and database again	3416	warn "loading config and database again";
2380	cf::cfg_load;	3417	cf::reload_config;
2381	cf::db_load;
2382		3418
2383	# load extensions
2384	warn "load extensions";	3419	warn "loading extensions";
2385	cf::load_extensions;	3420	cf::load_extensions;
2386		3421
2387	# reattach attachments to objects	3422	warn "reattaching attachments to objects/players";
2388	warn "reattach";	3423	_global_reattach; # objects, sockets
2389	_global_reattach;	3424	warn "reattaching attachments to maps";
2390	reattach $_ for values %MAP;	3425	reattach $_ for values %MAP;
2391	};	3426	warn "reattaching attachments to players";
		3427	reattach $_ for values %PLAYER;
2392		3428
2393	if ($@) {	3429	warn "leaving sync_job";
		3430
		3431	1
		3432	} or do {
2394	warn $@;	3433	warn $@;
2395	warn "error while reloading, exiting.";	3434	warn "error while reloading, exiting.";
2396	exit 1;	3435	exit 1;
2397	}	3436	};
2398		3437
2399	warn "reloaded successfully";	3438	warn "reloaded";
2400	};	3439	};
2401		3440
2402	#############################################################################	3441	our $RELOAD_WATCHER; # used only during reload
2403		3442
2404	unless ($LINK_MAP) {	3443	sub reload_perl() {
2405	$LINK_MAP = cf::map::new;	3444	# doing reload synchronously and two reloads happen back-to-back,
		3445	# coro crashes during coro_state_free->destroy here.
2406		3446
2407	$LINK_MAP->width (41);	3447	$RELOAD_WATCHER ||= Event->timer (
2408	$LINK_MAP->height (41);	3448	reentrant => 0,
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,	3449	after => 0,
		3450	data => WF_AUTOCANCEL,
2417	cb => sub {	3451	cb => sub {
2418	$_[0]->w->cancel;	3452	do_reload_perl;
2419		3453	undef $RELOAD_WATCHER;
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});	3454	},
2438		3455	);
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	3456	}
2444
2445	register "<global>", __PACKAGE__;
2446		3457
2447	register_command "reload" => sub {	3458	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	3459	my ($who, $arg) = @_;
2449		3460
2450	if ($who->flag (FLAG_WIZ)) {	3461	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	3462	$who->message ("reloading server.");
		3463	async {
		3464	$Coro::current->{desc} = "perl_reload";
		3465	reload_perl;
		3466	};
2454	}	3467	}
2455	};	3468	};
2456		3469
2457	unshift @INC, $LIBDIR;	3470	unshift @INC, $LIBDIR;
		3471
		3472	my $bug_warning = 0;
		3473
		3474	our @WAIT_FOR_TICK;
		3475	our @WAIT_FOR_TICK_BEGIN;
		3476
		3477	sub wait_for_tick {
		3478	return unless $TICK_WATCHER->is_active;
		3479	return if $Coro::current == $Coro::main;
		3480
		3481	my $signal = new Coro::Signal;
		3482	push @WAIT_FOR_TICK, $signal;
		3483	$signal->wait;
		3484	}
		3485
		3486	sub wait_for_tick_begin {
		3487	return unless $TICK_WATCHER->is_active;
		3488	return if $Coro::current == $Coro::main;
		3489
		3490	my $signal = new Coro::Signal;
		3491	push @WAIT_FOR_TICK_BEGIN, $signal;
		3492	$signal->wait;
		3493	}
2458		3494
2459	$TICK_WATCHER = Event->timer (	3495	$TICK_WATCHER = Event->timer (
2460	reentrant => 0,	3496	reentrant => 0,
		3497	parked => 1,
2461	prio => 0,	3498	prio => 0,
2462	at => $NEXT_TICK || $TICK,	3499	at => $NEXT_TICK || $TICK,
2463	data => WF_AUTOCANCEL,	3500	data => WF_AUTOCANCEL,
2464	cb => sub {	3501	cb => sub {
		3502	if ($Coro::current != $Coro::main) {
		3503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3504	unless ++$bug_warning > 10;
		3505	return;
		3506	}
		3507
		3508	$NOW = $tick_start = Event::time;
		3509
2465	cf::server_tick; # one server iteration	3510	cf::server_tick; # one server iteration
		3511
2466	$RUNTIME += $TICK;	3512	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;	3513	$NEXT_TICK += $TICK;
2468		3514
2469	$WAIT_FOR_TICK->broadcast;	3515	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3516	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3517	Coro::async_pool {
		3518	$Coro::current->{desc} = "runtime saver";
		3519	write_runtime
		3520	or warn "ERROR: unable to write runtime file: $!";
		3521	};
		3522	}
		3523
		3524	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3525	$sig->send;
		3526	}
		3527	while (my $sig = shift @WAIT_FOR_TICK) {
		3528	$sig->send;
		3529	}
		3530
		3531	$NOW = Event::time;
2471		3532
2472	# if we are delayed by four ticks or more, skip them all	3533	# if we are delayed by four ticks or more, skip them all
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3534	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2474		3535
2475	$TICK_WATCHER->at ($NEXT_TICK);	3536	$TICK_WATCHER->at ($NEXT_TICK);
2476	$TICK_WATCHER->start;	3537	$TICK_WATCHER->start;
		3538
		3539	$LOAD = ($NOW - $tick_start) / $TICK;
		3540	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3541
		3542	_post_tick;
2477	},	3543	},
2478	);	3544	);
2479		3545
		3546	{
		3547	BDB::min_parallel 8;
2480	IO::AIO::max_poll_time $TICK * 0.2;	3548	BDB::max_poll_time $TICK * 0.1;
2481		3549	$BDB_POLL_WATCHER = Event->io (
2482	Event->io (	3550	reentrant => 0,
2483	fd => IO::AIO::poll_fileno,	3551	fd => BDB::poll_fileno,
2484	poll => 'r',	3552	poll => 'r',
2485	prio => 5,	3553	prio => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,	3554	data => WF_AUTOCANCEL,
		3555	cb => \&BDB::poll_cb,
		3556	);
		3557
		3558	BDB::set_sync_prepare {
		3559	my $status;
		3560	my $current = $Coro::current;
		3561	(
		3562	sub {
		3563	$status = $!;
		3564	$current->ready; undef $current;
		3565	},
		3566	sub {
		3567	Coro::schedule while defined $current;
		3568	$! = $status;
		3569	},
		3570	)
		3571	};
		3572
		3573	unless ($DB_ENV) {
		3574	$DB_ENV = BDB::db_env_create;
		3575	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3576	| BDB::LOG_AUTOREMOVE, 1);
		3577	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3578	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3579
		3580	cf::sync_job {
		3581	eval {
		3582	BDB::db_env_open
		3583	$DB_ENV,
		3584	$BDBDIR,
		3585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3587	0666;
		3588
		3589	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3590	};
		3591
		3592	cf::cleanup "db_env_open(db): $@" if $@;
		3593	};
		3594	}
		3595
		3596	$BDB_DEADLOCK_WATCHER = Event->timer (
2492	after => 0,	3597	after => 3,
2493	interval => 10,	3598	interval => 1,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
2494	cb => sub {	3602	cb => sub {
2495	(Coro::unblock_sub {	3603	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2496	write_runtime	3604	},
2497	or warn "ERROR: unable to write runtime file: $!";	3605	);
		3606	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3607	after => 11,
		3608	interval => 60,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3614	},
		3615	);
		3616	$BDB_TRICKLE_WATCHER = Event->timer (
		3617	after => 5,
		3618	interval => 10,
		3619	hard => 1,
		3620	prio => 0,
		3621	data => WF_AUTOCANCEL,
		3622	cb => sub {
		3623	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3624	},
		3625	);
		3626	}
		3627
		3628	{
		3629	IO::AIO::min_parallel 8;
		3630
		3631	undef $Coro::AIO::WATCHER;
		3632	IO::AIO::max_poll_time $TICK * 0.1;
		3633	$AIO_POLL_WATCHER = Event->io (
		3634	reentrant => 0,
		3635	data => WF_AUTOCANCEL,
		3636	fd => IO::AIO::poll_fileno,
		3637	poll => 'r',
		3638	prio => 0,
		3639	cb => \&IO::AIO::poll_cb,
		3640	);
		3641	}
		3642
		3643	my $_log_backtrace;
		3644
		3645	sub _log_backtrace {
		3646	my ($msg, @addr) = @_;
		3647
		3648	$msg =~ s/\n//;
		3649
		3650	# limit the # of concurrent backtraces
		3651	if ($_log_backtrace < 2) {
		3652	++$_log_backtrace;
		3653	async {
		3654	$Coro::current->{desc} = "abt $msg";
		3655
		3656	my @bt = fork_call {
		3657	@addr = map { sprintf "%x", $_ } @addr;
		3658	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3659	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3660	or die "addr2line: $!";
		3661
		3662	my @funcs;
		3663	my @res = <$fh>;
		3664	chomp for @res;
		3665	while (@res) {
		3666	my ($func, $line) = splice @res, 0, 2, ();
		3667	push @funcs, "[$func] $line";
		3668	}
		3669
		3670	@funcs
		3671	};
		3672
		3673	LOG llevInfo, "[ABT] $msg\n";
		3674	LOG llevInfo, "[ABT] $_\n" for @bt;
		3675	--$_log_backtrace;
2498	})->();	3676	};
		3677	} else {
		3678	LOG llevInfo, "[ABT] $msg\n";
		3679	LOG llevInfo, "[ABT] [suppressed]\n";
2499	},	3680	}
2500	);	3681	}
		3682
		3683	# load additional modules
		3684	use cf::pod;
2501		3685
2502	END { cf::emergency_save }	3686	END { cf::emergency_save }
2503		3687
2504	1	3688	1
2505		3689

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