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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.161 by root, Thu Jan 11 00:16:58 2007 UTC vs.
Revision 1.387 by root, Mon Oct 15 23:49:10 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 = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	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(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	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;
51		89
52	our %CFG;	90	our %CFG;
53		91
54	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	93	our $RUNTIME;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
63	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 $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	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
98	every server tick.	136	every server tick.
99		137
100	=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
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	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.
112		164
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	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
121	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
122	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.
123	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.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		206
148	# 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
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$Event::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$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;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	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
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($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#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$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;
264	}	397	}
265		398
266	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
267		400
268	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		406
274	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
275		408
276	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
277		410
278	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)
279	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
280	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.
281		415
282	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
283	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
284	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
285	fast or be very important.	419	fast or be very important.
…		…
288		422
289	sub sync_job(&) {	423	sub sync_job(&) {
290	my ($job) = @_;	424	my ($job) = @_;
291		425
292	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
293	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
295		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
296	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	435	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
299		437
300	my $busy = 1;	438	my $busy = 1;
301	my @res;	439	my @res;
302		440
303	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	443	@res = eval { $job->() };
305	warn $@ if $@;	444	warn $@ if $@;
306	undef $busy;	445	undef $busy;
307	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
308		447
309	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
310	Coro::cede or Event::one_event;	452	Event::one_event;
311	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
312		462
313	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
314	} else {	464	} else {
315	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
316		466
…		…
336	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
337		487
338	$coro	488	$coro
339	}	489	}
340		490
341	sub write_runtime {	491	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		492
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
345	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
346		497
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		499
351	aio_fsync $fh	500	sub fork_call(&@) {
352	and return;	501	my ($cb, @args) = @_;
353		502
354	close $fh	503	# we seemingly have to make a local copy of the whole thing,
355	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
356		506
357	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
358	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
359		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
360	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	651	}
362		652
363	=back	653	=back
364		654
365	=cut	655	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477	$path
478	}
479
480	# the original (read-only) location
481	sub load_path {
482	my ($self) = @_;
483
484	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
485	}
486
487	# the temporary/swap location
488	sub save_path {
489	my ($self) = @_;
490
491	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
492	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
493	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
494	}
495
496	# the unique path, undef == no special unique path
497	sub uniq_path {
498	my ($self) = @_;
499
500	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
501	}
502
503	# this is somewhat ugly, but style maps do need special treatment
504	sub is_style_map {
505	$_[0]{path} =~ m{^/styles/}
506	}
507
508	sub load_orig {
509	my ($self) = @_;
510
511	&cf::map::load_map_header ($self->load_path)
512	}
513
514	sub load_temp {
515	my ($self) = @_;
516
517	&cf::map::load_map_header ($self->save_path)
518	}
519
520	package cf;
521		656
522	#############################################################################	657	#############################################################################
523		658
524	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
525		660
…		…
527	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
528	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
529		664
530	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
531	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
532	crossfire+).	667	Crossfire TRT).
533		668
534	=over 4	669	=over 4
535		670
536	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
537		672
…		…
651	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
652	our @CB_MAP = ();	787	our @CB_MAP = ();
653		788
654	my %attachment;	789	my %attachment;
655		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
656	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
657	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
658		799
659	use sort 'stable';	800	use sort 'stable';
660		801
…		…
694	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
695		836
696	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
697	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
698	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
699	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
700		841
701	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
702	my $pkg = shift @arg;	843	my $pkg = shift @arg;
703		844
704	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
733	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
734	}	875	}
735		876
736	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
737	} else {	878	} else {
738	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
739	}	880	}
740		881
741	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
742	}	883	}
743		884
…		…
745	if (ref $_[0]) {	886	if (ref $_[0]) {
746	_object_attach @_;	887	_object_attach @_;
747	} else {	888	} else {
748	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
749	}	890	}
		891	_recalc_want;
750	};	892	};
751		893
752	# all those should be optimised	894	# all those should be optimised
753	sub cf::attachable::detach {	895	sub cf::attachable::detach {
754	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
757	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
758	reattach ($obj);	900	reattach ($obj);
759	} else {	901	} else {
760	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
761	}	903	}
		904	_recalc_want;
762	};	905	};
763		906
764	sub cf::attachable::attached {	907	sub cf::attachable::attached {
765	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
766		909
…		…
781	";	924	";
782	die if $@;	925	die if $@;
783	}	926	}
784		927
785	our $override;	928	our $override;
786	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
787		930
788	sub override {	931	sub override {
789	$override = 1;	932	$override = 1;
790	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
791	}	934	}
792		935
793	sub do_invoke {	936	sub do_invoke {
794	my $event = shift;	937	my $event = shift;
795	my $callbacks = shift;	938	my $callbacks = shift;
796		939
797	@invoke_results = ();	940	@INVOKE_RESULTS = ();
798		941
799	local $override;	942	local $override;
800		943
801	for (@$callbacks) {	944	for (@$callbacks) {
802	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
819		962
820	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
821		964
822	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
823	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
824	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
825		968
826	=back	969	=back
827		970
828	=cut	971	=cut
829		972
830	#############################################################################	973	#############################################################################
831	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
832		1017
833	sub reattach {	1018	sub reattach {
834	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
835	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
836		1023
837	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
838		1025
839	@$registry = ();	1026	@$registry = ();
840		1027
…		…
881	sub object_freezer_save {	1068	sub object_freezer_save {
882	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
883		1070
884	sync_job {	1071	sync_job {
885	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
886	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
887	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
888		1076
889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
890	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
892	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
893	close $fh;	1081	close $fh;
894		1082
895	if (@$objs) {	1083	if (@$objs) {
896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
897	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
898	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
899	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
900	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
901	close $fh;	1089	close $fh;
902	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
903	}	1091	}
904	} else {	1092	} else {
905	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
911	}	1099	}
912	} else {	1100	} else {
913	aio_unlink $filename;	1101	aio_unlink $filename;
914	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
915	}	1103	}
916	}	1104	};
917	}	1105	}
918		1106
919	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
920	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
921		1109
…		…
933	or return;	1121	or return;
934		1122
935	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
936	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
937	or return;	1125	or return;
938	$av = eval { (Storable::thaw $av)->{objs} };
939	}
940		1126
		1127	my $st = eval { Coro::Storable::thaw $av }
		1128	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1129	$av = $st->{objs};
		1130	}
		1131
		1132	utf8::decode (my $decname = $filename);
941	warn sprintf "loading %s (%d)\n",	1133	warn sprintf "loading %s (%d,%d)\n",
942	$filename, length $data, scalar @{$av || []};#d#	1134	$decname, length $data, scalar @{$av || []};
		1135
943	return ($data, $av);	1136	($data, $av)
944	}	1137	}
		1138
		1139	=head2 COMMAND CALLBACKS
		1140
		1141	=over 4
		1142
		1143	=cut
945		1144
946	#############################################################################	1145	#############################################################################
947	# command handling &c	1146	# command handling &c
948		1147
949	=item cf::register_command $name => \&callback($ob,$args);	1148	=item cf::register_command $name => \&callback($ob,$args);
…		…
962	push @{ $COMMAND{$name} }, [$caller, $cb];	1161	push @{ $COMMAND{$name} }, [$caller, $cb];
963	}	1162	}
964		1163
965	=item cf::register_extcmd $name => \&callback($pl,$packet);	1164	=item cf::register_extcmd $name => \&callback($pl,$packet);
966		1165
967	Register a callbackf ro execution when the client sends an extcmd packet.	1166	Register a callback for execution when the client sends an (synchronous)
		1167	extcmd packet. Ext commands will be processed in the order they are
		1168	received by the server, like other user commands. The first argument is
		1169	the logged-in player. Ext commands can only be processed after a player
		1170	has logged in successfully.
968		1171
969	If the callback returns something, it is sent back as if reply was being	1172	If the callback returns something, it is sent back as if reply was being
970	called.	1173	called.
971		1174
		1175	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1176
		1177	Register a callback for execution when the client sends an (asynchronous)
		1178	exticmd packet. Exti commands are processed by the server as soon as they
		1179	are received, i.e. out of order w.r.t. other commands. The first argument
		1180	is a client socket. Exti commands can be received anytime, even before
		1181	log-in.
		1182
		1183	If the callback returns something, it is sent back as if reply was being
		1184	called.
		1185
972	=cut	1186	=cut
973		1187
974	sub register_extcmd {	1188	sub register_extcmd {
975	my ($name, $cb) = @_;	1189	my ($name, $cb) = @_;
976		1190
977	$EXTCMD{$name} = $cb;	1191	$EXTCMD{$name} = $cb;
		1192	}
		1193
		1194	sub register_exticmd {
		1195	my ($name, $cb) = @_;
		1196
		1197	$EXTICMD{$name} = $cb;
978	}	1198	}
979		1199
980	cf::player->attach (	1200	cf::player->attach (
981	on_command => sub {	1201	on_command => sub {
982	my ($pl, $name, $params) = @_;	1202	my ($pl, $name, $params) = @_;
…		…
991	cf::override;	1211	cf::override;
992	},	1212	},
993	on_extcmd => sub {	1213	on_extcmd => sub {
994	my ($pl, $buf) = @_;	1214	my ($pl, $buf) = @_;
995		1215
996	my $msg = eval { from_json $buf };	1216	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
997		1217
998	if (ref $msg) {	1218	if (ref $msg) {
		1219	my ($type, $reply, @payload) =
		1220	"ARRAY" eq ref $msg
		1221	? @$msg
		1222	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1223
		1224	my @reply;
		1225
999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1226	if (my $cb = $EXTCMD{$type}) {
1000	if (my %reply = $cb->($pl, $msg)) {	1227	@reply = $cb->($pl, @payload);
1001	$pl->ext_reply ($msg->{msgid}, %reply);
1002	}
1003	}	1228	}
		1229
		1230	$pl->ext_reply ($reply, @reply)
		1231	if $reply;
		1232
1004	} else {	1233	} else {
1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1234	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1006	}	1235	}
1007		1236
1008	cf::override;	1237	cf::override;
1009	},	1238	},
1010	);	1239	);
1011		1240
1012	sub load_extension {
1013	my ($path) = @_;
1014
1015	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1016	my $base = $1;
1017	my $pkg = $1;
1018	$pkg =~ s/[^[:word:]]/_/g;
1019	$pkg = "ext::$pkg";
1020
1021	warn "... loading '$path' into '$pkg'\n";
1022
1023	open my $fh, "<:utf8", $path
1024	or die "$path: $!";
1025
1026	my $source =
1027	"package $pkg; use strict; use utf8;\n"
1028	. "#line 1 \"$path\"\n{\n"
1029	. (do { local $/; <$fh> })
1030	. "\n};\n1";
1031
1032	eval $source
1033	or die $@ ? "$path: $@\n"
1034	: "extension disabled.\n";
1035
1036	push @EXTS, $pkg;
1037	}
1038
1039	sub load_extensions {	1241	sub load_extensions {
		1242	cf::sync_job {
		1243	my %todo;
		1244
1040	for my $ext (<$LIBDIR/*.ext>) {	1245	for my $path (<$LIBDIR/*.ext>) {
1041	next unless -r $ext;	1246	next unless -r $path;
1042	eval {	1247
1043	load_extension $ext;	1248	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1249	my $base = $1;
		1250	my $pkg = $1;
		1251	$pkg =~ s/[^[:word:]]/_/g;
		1252	$pkg = "ext::$pkg";
		1253
		1254	open my $fh, "<:utf8", $path
		1255	or die "$path: $!";
		1256
		1257	my $source = do { local $/; <$fh> };
		1258
		1259	my %ext = (
		1260	path => $path,
		1261	base => $base,
		1262	pkg => $pkg,
		1263	);
		1264
		1265	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1266	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1267
		1268	$ext{source} =
		1269	"package $pkg; use strict; use utf8;\n"
		1270	. "#line 1 \"$path\"\n{\n"
		1271	. $source
		1272	. "\n};\n1";
		1273
		1274	$todo{$base} = \%ext;
		1275	}
		1276
		1277	my %done;
		1278	while (%todo) {
		1279	my $progress;
		1280
		1281	while (my ($k, $v) = each %todo) {
		1282	for (split /,\s*/, $v->{meta}{depends}) {
		1283	goto skip
		1284	unless exists $done{$_};
		1285	}
		1286
		1287	warn "... loading '$k' into '$v->{pkg}'\n";
		1288
		1289	unless (eval $v->{source}) {
		1290	my $msg = $@ ? "$v->{path}: $@\n"
		1291	: "$v->{base}: extension inactive.\n";
		1292
		1293	if (exists $v->{meta}{mandatory}) {
		1294	warn $msg;
		1295	warn "mandatory extension failed to load, exiting.\n";
		1296	exit 1;
		1297	}
		1298
		1299	warn $msg;
		1300	}
		1301
		1302	$done{$k} = delete $todo{$k};
		1303	push @EXTS, $v->{pkg};
		1304	$progress = 1;
1044	1	1305	}
1045	} or warn "$ext not loaded: $@";	1306
		1307	skip:
		1308	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1309	unless $progress;
		1310	}
1046	}	1311	};
1047	}	1312	}
1048		1313
1049	#############################################################################	1314	#############################################################################
1050	# load/save/clean perl data associated with a map
1051		1315
1052	*cf::mapsupport::on_clean = sub {	1316	=back
1053	my ($map) = @_;
1054
1055	my $path = $map->tmpname;
1056	defined $path or return;
1057
1058	unlink "$path.pst";
1059	};
1060
1061	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1062
1063	#############################################################################
1064		1317
1065	=head2 CORE EXTENSIONS	1318	=head2 CORE EXTENSIONS
1066		1319
1067	Functions and methods that extend core crossfire objects.	1320	Functions and methods that extend core crossfire objects.
1068		1321
…		…
1074		1327
1075	=head3 cf::player	1328	=head3 cf::player
1076		1329
1077	=over 4	1330	=over 4
1078		1331
		1332	=item cf::player::num_playing
		1333
		1334	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1335
		1336	=cut
		1337
		1338	sub num_playing {
		1339	scalar grep
		1340	$_->ob->map
		1341	&& !$_->hidden
		1342	&& !$_->ob->flag (cf::FLAG_WIZ),
		1343	cf::player::list
		1344	}
		1345
1079	=item cf::player::find $login	1346	=item cf::player::find $login
1080		1347
1081	Returns the given player object, loading it if necessary (might block).	1348	Returns the given player object, loading it if necessary (might block).
1082		1349
1083	=cut	1350	=cut
1084		1351
1085	sub playerdir($) {	1352	sub playerdir($) {
1086	cf::localdir	1353	"$PLAYERDIR/"
1087	. "/"
1088	. cf::playerdir
1089	. "/"
1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1354	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1091	}	1355	}
1092		1356
1093	sub path($) {	1357	sub path($) {
1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1358	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1095		1359
1096	(playerdir $login) . "/$login.pl"	1360	(playerdir $login) . "/playerdata"
1097	}	1361	}
1098		1362
1099	sub find_active($) {	1363	sub find_active($) {
1100	$cf::PLAYER{$_[0]}	1364	$cf::PLAYER{$_[0]}
1101	and $cf::PLAYER{$_[0]}->active	1365	and $cf::PLAYER{$_[0]}->active
…		…
1104		1368
1105	sub exists($) {	1369	sub exists($) {
1106	my ($login) = @_;	1370	my ($login) = @_;
1107		1371
1108	$cf::PLAYER{$login}	1372	$cf::PLAYER{$login}
1109	or cf::sync_job { !aio_stat $login }	1373	or cf::sync_job { !aio_stat path $login }
1110	}	1374	}
1111		1375
1112	sub find($) {	1376	sub find($) {
1113	return $cf::PLAYER{$_[0]} || do {	1377	return $cf::PLAYER{$_[0]} || do {
1114	my $login = $_[0];	1378	my $login = $_[0];
1115		1379
1116	my $guard = cf::lock_acquire "user_find:$login";	1380	my $guard = cf::lock_acquire "user_find:$login";
1117		1381
1118	$cf::PLAYER{$_[0]} || do {	1382	$cf::PLAYER{$_[0]} || do {
1119	my $pl = load_pl path $login	1383	# rename old playerfiles to new ones
		1384	#TODO: remove when no longer required
		1385	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1386	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1387	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1388	aio_unlink +(playerdir $login) . "/$login.pl";
		1389
		1390	my $f = new_from_file cf::object::thawer path $login
1120	or return;	1391	or return;
		1392
		1393	my $pl = cf::player::load_pl $f
		1394	or return;
		1395	local $cf::PLAYER_LOADING{$login} = $pl;
		1396	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1397	$cf::PLAYER{$login} = $pl
1122	}	1398	}
1123	}	1399	}
1124	}	1400	}
1125		1401
…		…
1135		1411
1136	aio_mkdir playerdir $pl, 0770;	1412	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1413	$pl->{last_save} = $cf::RUNTIME;
1138		1414
1139	$pl->save_pl ($path);	1415	$pl->save_pl ($path);
1140	Coro::cede;	1416	cf::cede_to_tick;
1141	}	1417	}
1142		1418
1143	sub new($) {	1419	sub new($) {
1144	my ($login) = @_;	1420	my ($login) = @_;
1145		1421
…		…
1151	$cf::PLAYER{$login} = $self;	1427	$cf::PLAYER{$login} = $self;
1152		1428
1153	$self	1429	$self
1154	}	1430	}
1155		1431
		1432	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1433
		1434	=cut
		1435
		1436	sub send_msg {
		1437	my $ns = shift->ns
		1438	or return;
		1439	$ns->send_msg (@_);
		1440	}
		1441
1156	=item $pl->quit_character	1442	=item $pl->quit_character
1157		1443
1158	Nukes the player without looking back. If logged in, the connection will	1444	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1445	be destroyed. May block for a long time.
1160		1446
1161	=cut	1447	=cut
1162		1448
1163	sub quit_character {	1449	sub quit_character {
1164	my ($pl) = @_;	1450	my ($pl) = @_;
		1451
		1452	my $name = $pl->ob->name;
1165		1453
1166	$pl->{deny_save} = 1;	1454	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1455	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1456
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1457	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1462	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1463	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1464	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1465	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1466	$pl->destroy;
		1467
		1468	my $prefix = qr<^~\Q$name\E/>;
		1469
		1470	# nuke player maps
		1471	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1472
1179	IO::AIO::aio_rmtree $temp;	1473	IO::AIO::aio_rmtree $temp;
		1474	}
		1475
		1476	=item $pl->kick
		1477
		1478	Kicks a player out of the game. This destroys the connection.
		1479
		1480	=cut
		1481
		1482	sub kick {
		1483	my ($pl, $kicker) = @_;
		1484
		1485	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1486	$pl->killer ("kicked");
		1487	$pl->ns->destroy;
1180	}	1488	}
1181		1489
1182	=item cf::player::list_logins	1490	=item cf::player::list_logins
1183		1491
1184	Returns am arrayref of all valid playernames in the system, can take a	1492	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1493	while and may block, so not sync_job-capable, ever.
1186		1494
1187	=cut	1495	=cut
1188		1496
1189	sub list_logins {	1497	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1498	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1499	or return [];
1192		1500
1193	my @logins;	1501	my @logins;
1194		1502
1195	for my $login (@$dirs) {	1503	for my $login (@$dirs) {
		1504	my $path = path $login;
		1505
		1506	# a .pst is a dead give-away for a valid player
		1507	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1508	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1509	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1510	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1511	}
1199		1512
1200	utf8::decode $login;	1513	utf8::decode $login;
1201	push @logins, $login;	1514	push @logins, $login;
1202	}	1515	}
1203		1516
1204	\@logins	1517	\@logins
1205	}	1518	}
1206		1519
1207	=item $player->maps	1520	=item $player->maps
1208		1521
1209	Returns an arrayref of cf::path's of all maps that are private for this	1522	Returns an arrayref of map paths that are private for this
1210	player. May block.	1523	player. May block.
1211		1524
1212	=cut	1525	=cut
1213		1526
1214	sub maps($) {	1527	sub maps($) {
1215	my ($pl) = @_;	1528	my ($pl) = @_;
		1529
		1530	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1531
1217	my $files = aio_readdir playerdir $pl	1532	my $files = aio_readdir playerdir $pl
1218	or return;	1533	or return;
1219		1534
1220	my @paths;	1535	my @paths;
…		…
1222	for (@$files) {	1537	for (@$files) {
1223	utf8::decode $_;	1538	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1539	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1540	next unless /^$PATH_SEP/o;
1226		1541
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1542	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1543	}
1229		1544
1230	\@paths	1545	\@paths
1231	}	1546	}
1232		1547
		1548	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1549
		1550	Expand crossfire pod fragments into protocol xml.
		1551
		1552	=cut
		1553
		1554	sub expand_cfpod {
		1555	((my $self), (local $_)) = @_;
		1556
		1557	# escape & and <
		1558	s/&/&amp;/g;
		1559	s/(?<![BIUGHT])</&lt;/g;
		1560
		1561	# this is buggy, it needs to properly take care of nested <'s
		1562
		1563	1 while
		1564	# replace B<>, I<>, U<> etc.
		1565	s/B<([^\>]*)>/<b>$1<\/b>/
		1566	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1567	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1568	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1569	# replace G<male|female> tags
		1570	|| s{G<([^>|]*)\|([^>]*)>}{
		1571	$self->gender ? $2 : $1
		1572	}ge
		1573	# replace H<hint text>
		1574	|| s{H<([^\>]*)>}
		1575	{
		1576	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1577	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1578	"")
		1579	[$self->{hintmode}]
		1580	}ge;
		1581
		1582	# create single paragraphs (very hackish)
		1583	s/(?<=\S)\n(?=\w)/ /g;
		1584
		1585	# compress some whitespace
		1586	s/\s+\n/\n/g; # ws line-ends
		1587	s/\n\n+/\n/g; # double lines
		1588	s/^\n+//; # beginning lines
		1589	s/\n+$//; # ending lines
		1590
		1591	$_
		1592	}
		1593
		1594	sub hintmode {
		1595	$_[0]{hintmode} = $_[1] if @_ > 1;
		1596	$_[0]{hintmode}
		1597	}
		1598
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1599	=item $player->ext_reply ($msgid, @msg)
1234		1600
1235	Sends an ext reply to the player.	1601	Sends an ext reply to the player.
1236		1602
1237	=cut	1603	=cut
1238		1604
1239	sub ext_reply($$$%) {	1605	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1606	my ($self, $id, @msg) = @_;
1241		1607
1242	$msg{msgid} = $id;	1608	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1609	}
1246		1610
1247	package cf;	1611	=item $player->ext_msg ($type, @msg)
		1612
		1613	Sends an ext event to the client.
		1614
		1615	=cut
		1616
		1617	sub ext_msg($$@) {
		1618	my ($self, $type, @msg) = @_;
		1619
		1620	$self->ns->ext_msg ($type, @msg);
		1621	}
		1622
		1623	=head3 cf::region
		1624
		1625	=over 4
		1626
		1627	=cut
		1628
		1629	package cf::region;
		1630
		1631	=item cf::region::find_by_path $path
		1632
		1633	Tries to decuce the likely region for a map knowing only its path.
		1634
		1635	=cut
		1636
		1637	sub find_by_path($) {
		1638	my ($path) = @_;
		1639
		1640	my ($match, $specificity);
		1641
		1642	for my $region (list) {
		1643	if ($region->{match} && $path =~ $region->{match}) {
		1644	($match, $specificity) = ($region, $region->specificity)
		1645	if $region->specificity > $specificity;
		1646	}
		1647	}
		1648
		1649	$match
		1650	}
1248		1651
1249	=back	1652	=back
1250
1251		1653
1252	=head3 cf::map	1654	=head3 cf::map
1253		1655
1254	=over 4	1656	=over 4
1255		1657
…		…
1258	package cf::map;	1660	package cf::map;
1259		1661
1260	use Fcntl;	1662	use Fcntl;
1261	use Coro::AIO;	1663	use Coro::AIO;
1262		1664
		1665	use overload
		1666	'""' => \&as_string,
		1667	fallback => 1;
		1668
1263	our $MAX_RESET = 3600;	1669	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1670	our $DEFAULT_RESET = 3000;
1265		1671
1266	sub generate_random_map {	1672	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1673	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1674	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1675	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1676	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1677	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1678	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1679	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1680	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1681	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1682	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1683	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1684	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1685	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1686	(cf::region::find $rmp->{region}), $rmp->{custom}
		1687	)
		1688	}
		1689
		1690	=item cf::map->register ($regex, $prio)
		1691
		1692	Register a handler for the map path matching the given regex at the
		1693	givne priority (higher is better, built-in handlers have priority 0, the
		1694	default).
		1695
		1696	=cut
		1697
		1698	sub register {
		1699	my (undef, $regex, $prio) = @_;
		1700	my $pkg = caller;
		1701
		1702	no strict;
		1703	push @{"$pkg\::ISA"}, __PACKAGE__;
		1704
		1705	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1706	}
		1707
		1708	# also paths starting with '/'
		1709	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1710
		1711	sub thawer_merge {
		1712	my ($self, $merge) = @_;
		1713
		1714	# we have to keep some variables in memory intact
		1715	local $self->{path};
		1716	local $self->{load_path};
		1717
		1718	$self->SUPER::thawer_merge ($merge);
		1719	}
		1720
		1721	sub normalise {
		1722	my ($path, $base) = @_;
		1723
		1724	$path = "$path"; # make sure its a string
		1725
		1726	$path =~ s/\.map$//;
		1727
		1728	# map plan:
		1729	#
		1730	# /! non-realised random map exit (special hack!)
		1731	# {... are special paths that are not being touched
		1732	# ?xxx/... are special absolute paths
		1733	# ?random/... random maps
		1734	# /... normal maps
		1735	# ~user/... per-player map of a specific user
		1736
		1737	$path =~ s/$PATH_SEP/\//go;
		1738
		1739	# treat it as relative path if it starts with
		1740	# something that looks reasonable
		1741	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1742	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1743
		1744	$base =~ s{[^/]+/?$}{};
		1745	$path = "$base/$path";
		1746	}
		1747
		1748	for ($path) {
		1749	redo if s{//}{/};
		1750	redo if s{/\.?/}{/};
		1751	redo if s{/[^/]+/\.\./}{/};
		1752	}
		1753
		1754	$path
		1755	}
		1756
		1757	sub new_from_path {
		1758	my (undef, $path, $base) = @_;
		1759
		1760	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1761
		1762	$path = normalise $path, $base;
		1763
		1764	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1765	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1766	my $self = bless cf::map::new, $pkg;
		1767	$self->{path} = $path; $self->path ($path);
		1768	$self->init; # pass $1 etc.
		1769	return $self;
		1770	}
		1771	}
		1772
		1773	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1774	()
		1775	}
		1776
		1777	sub init {
		1778	my ($self) = @_;
		1779
		1780	$self
		1781	}
		1782
		1783	sub as_string {
		1784	my ($self) = @_;
		1785
		1786	"$self->{path}"
		1787	}
		1788
		1789	# the displayed name, this is a one way mapping
		1790	sub visible_name {
		1791	&as_string
		1792	}
		1793
		1794	# the original (read-only) location
		1795	sub load_path {
		1796	my ($self) = @_;
		1797
		1798	"$MAPDIR/$self->{path}.map"
		1799	}
		1800
		1801	# the temporary/swap location
		1802	sub save_path {
		1803	my ($self) = @_;
		1804
		1805	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1806	"$TMPDIR/$path.map"
		1807	}
		1808
		1809	# the unique path, undef == no special unique path
		1810	sub uniq_path {
		1811	my ($self) = @_;
		1812
		1813	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1814	"$UNIQUEDIR/$path"
1283	}	1815	}
1284		1816
1285	# and all this just because we cannot iterate over	1817	# and all this just because we cannot iterate over
1286	# all maps in C++...	1818	# all maps in C++...
1287	sub change_all_map_light {	1819	sub change_all_map_light {
…		…
1289		1821
1290	$_->change_map_light ($change)	1822	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1823	for grep $_->outdoor, values %cf::MAP;
1292	}	1824	}
1293		1825
		1826	sub decay_objects {
		1827	my ($self) = @_;
		1828
		1829	return if $self->{deny_reset};
		1830
		1831	$self->do_decay_objects;
		1832	}
		1833
		1834	sub unlink_save {
		1835	my ($self) = @_;
		1836
		1837	utf8::encode (my $save = $self->save_path);
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1839	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1840	}
		1841
1294	sub load_map_header($) {	1842	sub load_header_from($) {
1295	my ($path) = @_;	1843	my ($self, $path) = @_;
1296		1844
1297	utf8::encode $path;	1845	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1846	my $f = new_from_file cf::object::thawer $path
1299	or return;	1847	or return;
1300		1848
1301	my $map = cf::map::new	1849	$self->_load_header ($f)
1302	or return;	1850	or return;
1303		1851
1304	# for better error messages only, will be overwritten later	1852	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1853	$f->resolve_delayed_derefs;
1306		1854
1307	$map->load_header ($path)	1855	$self->{load_path} = $path;
		1856
		1857	1
		1858	}
		1859
		1860	sub load_header_orig {
		1861	my ($self) = @_;
		1862
		1863	$self->load_header_from ($self->load_path)
		1864	}
		1865
		1866	sub load_header_temp {
		1867	my ($self) = @_;
		1868
		1869	$self->load_header_from ($self->save_path)
		1870	}
		1871
		1872	sub prepare_temp {
		1873	my ($self) = @_;
		1874
		1875	$self->last_access ((delete $self->{last_access})
		1876	|| $cf::RUNTIME); #d#
		1877	# safety
		1878	$self->{instantiate_time} = $cf::RUNTIME
		1879	if $self->{instantiate_time} > $cf::RUNTIME;
		1880	}
		1881
		1882	sub prepare_orig {
		1883	my ($self) = @_;
		1884
		1885	$self->{load_original} = 1;
		1886	$self->{instantiate_time} = $cf::RUNTIME;
		1887	$self->last_access ($cf::RUNTIME);
		1888	$self->instantiate;
		1889	}
		1890
		1891	sub load_header {
		1892	my ($self) = @_;
		1893
		1894	if ($self->load_header_temp) {
		1895	$self->prepare_temp;
		1896	} else {
		1897	$self->load_header_orig
1308	or return;	1898	or return;
		1899	$self->prepare_orig;
		1900	}
1309		1901
1310	$map->{load_path} = $path;	1902	$self->{deny_reset} = 1
		1903	if $self->no_reset;
1311		1904
1312	$map	1905	$self->default_region (cf::region::find_by_path $self->{path})
		1906	unless $self->default_region;
		1907
		1908	1
1313	}	1909	}
1314		1910
1315	sub find;	1911	sub find;
1316	sub find {	1912	sub find {
1317	my ($path, $origin) = @_;	1913	my ($path, $origin) = @_;
1318		1914
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1915	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1916
		1917	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1918	cf::lock_wait "map_find:$path";
1325		1919
1326	$cf::MAP{$key} || do {	1920	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1921	my $guard1 = cf::lock_acquire "map_find:$path";
		1922	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1923
1329	# do it the slow way	1924	my $map = new_from_path cf::map $path
1330	my $map = $path->load_temp;
1331
1332	Coro::cede;
1333
1334	if ($map) {
1335	$map->last_access ((delete $map->{last_access})
1336	|| $cf::RUNTIME); #d#
1337	# safety
1338	$map->{instantiate_time} = $cf::RUNTIME
1339	if $map->{instantiate_time} > $cf::RUNTIME;
1340	} else {
1341	$map = $path->load_orig
1342	or return;	1925	or return;
1343		1926
1344	$map->{load_original} = 1;
1345	$map->{instantiate_time} = $cf::RUNTIME;
1346	$map->last_access ($cf::RUNTIME);
1347	$map->instantiate;
1348
1349	# per-player maps become, after loading, normal maps
1350	$map->per_player (0) if $path->{user_rel};
1351	}
1352
1353	$map->path ($key);
1354	$map->{path} = $path;
1355	$map->{last_save} = $cf::RUNTIME;	1927	$map->{last_save} = $cf::RUNTIME;
1356		1928
1357	Coro::cede;	1929	$map->load_header
		1930	or return;
1358		1931
1359	if ($map->should_reset) {	1932	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1933	# doing this can freeze the server in a sync job, obviously
		1934	#$cf::WAIT_FOR_TICK->wait;
		1935	undef $guard1;
		1936	undef $guard2;
1360	$map->reset;	1937	$map->reset;
1361	undef $guard;
1362	$map = find $path	1938	return find $path;
1363	or return;
1364	}	1939	}
1365		1940
1366	$cf::MAP{$key} = $map	1941	$cf::MAP{$path} = $map
1367	}	1942	}
1368	}	1943	}
		1944
		1945	sub pre_load { }
		1946	sub post_load { }
1369		1947
1370	sub load {	1948	sub load {
1371	my ($self) = @_;	1949	my ($self) = @_;
1372		1950
		1951	local $self->{deny_reset} = 1; # loading can take a long time
		1952
1373	my $path = $self->{path};	1953	my $path = $self->{path};
		1954
		1955	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1956	my $guard = cf::lock_acquire "map_data:$path";
1375		1957
		1958	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	1959	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		1960
1378	$self->in_memory (cf::MAP_LOADING);	1961	$self->in_memory (cf::MAP_LOADING);
1379		1962
1380	$self->alloc;	1963	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	1964
		1965	$self->pre_load;
		1966	cf::cede_to_tick;
		1967
		1968	my $f = new_from_file cf::object::thawer $self->{load_path};
		1969	$f->skip_block;
		1970	$self->_load_objects ($f)
1382	or return;	1971	or return;
1383		1972
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1973	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	1974	if delete $self->{load_original};
1386		1975
1387	if (my $uniq = $path->uniq_path) {	1976	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	1977	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	1978	unless (aio_stat $uniq) {
		1979	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	1980	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	1981	$self->_load_objects ($f);
		1982	$f->resolve_delayed_derefs;
		1983	}
1392	}	1984	}
1393	}	1985	}
1394		1986
1395	Coro::cede;	1987	$f->resolve_delayed_derefs;
1396		1988
		1989	cf::cede_to_tick;
1397	# now do the right thing for maps	1990	# now do the right thing for maps
1398	$self->link_multipart_objects;	1991	$self->link_multipart_objects;
1399
1400	if ($self->{path}->is_style_map) {
1401	$self->{deny_save} = 1;
1402	$self->{deny_reset} = 1;
1403	} else {
1404	$self->fix_auto_apply;
1405	$self->decay_objects;
1406	$self->update_buttons;
1407	$self->set_darkness_map;
1408	$self->difficulty ($self->estimate_difficulty)	1992	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	1993	unless $self->difficulty;
		1994	cf::cede_to_tick;
		1995
		1996	unless ($self->{deny_activate}) {
		1997	$self->decay_objects;
		1998	$self->fix_auto_apply;
		1999	$self->update_buttons;
		2000	cf::cede_to_tick;
		2001	$self->set_darkness_map;
		2002	cf::cede_to_tick;
1410	$self->activate;	2003	$self->activate;
1411	}	2004	}
1412		2005
1413	Coro::cede;	2006	$self->{last_save} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
1414		2008
1415	$self->in_memory (cf::MAP_IN_MEMORY);	2009	$self->in_memory (cf::MAP_IN_MEMORY);
		2010	}
		2011
		2012	$self->post_load;
		2013	}
		2014
		2015	sub customise_for {
		2016	my ($self, $ob) = @_;
		2017
		2018	return find "~" . $ob->name . "/" . $self->{path}
		2019	if $self->per_player;
		2020
		2021	# return find "?party/" . $ob->name . "/" . $self->{path}
		2022	# if $self->per_party;
		2023
		2024	$self
1416	}	2025	}
1417		2026
1418	# find and load all maps in the 3x3 area around a map	2027	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	2028	sub load_neighbours {
1420	my ($map) = @_;	2029	my ($map) = @_;
1421		2030
1422	my @diag; # diagonal neighbours	2031	my @neigh; # diagonal neighbours
1423		2032
1424	for (0 .. 3) {	2033	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	2034	my $neigh = $map->tile_path ($_)
1426	or next;	2035	or next;
1427	$neigh = find $neigh, $map	2036	$neigh = find $neigh, $map
1428	or next;	2037	or next;
1429	$neigh->load;	2038	$neigh->load;
1430		2039
		2040	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2041	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2042	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2043	}
1434		2044
1435	for (@diag) {	2045	for (grep defined $_->[0], @neigh) {
		2046	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2047	my $neigh = find $path, $origin
1437	or next;	2048	or next;
1438	$neigh->load;	2049	$neigh->load;
1439	}	2050	}
1440	}	2051	}
1441		2052
…		…
1446	}	2057	}
1447		2058
1448	sub do_load_sync {	2059	sub do_load_sync {
1449	my ($map) = @_;	2060	my ($map) = @_;
1450		2061
		2062	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2063	if $Coro::current == $Coro::main;
		2064
1451	cf::sync_job { $map->load };	2065	cf::sync_job { $map->load };
1452	}	2066	}
1453		2067
1454	our %MAP_PREFETCH;	2068	our %MAP_PREFETCH;
		2069	our $MAP_PREFETCHER = undef;
		2070
		2071	sub find_async {
		2072	my ($path, $origin, $load) = @_;
		2073
		2074	$path = normalise $path, $origin && $origin->{path};
		2075
		2076	if (my $map = $cf::MAP{$path}) {
		2077	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2078	}
		2079
		2080	$MAP_PREFETCH{$path} |= $load;
		2081
1455	our $MAP_PREFETCHER = Coro::async {	2082	$MAP_PREFETCHER ||= cf::async {
1456	while () {	2083	$Coro::current->{desc} = "map prefetcher";
		2084
1457	while (%MAP_PREFETCH) {	2085	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2086	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2087	if (my $map = find $k) {
		2088	$map->load if $v;
		2089	}
		2090
1460	my $path = delete $MAP_PREFETCH{$key};	2091	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2092	}
1466	Coro::schedule;	2093	}
		2094	undef $MAP_PREFETCHER;
1467	}	2095	};
1468	};
1469
1470	sub find_async {
1471	my ($path, $origin) = @_;
1472
1473	$path = new cf::path $path, $origin && $origin->path;
1474	my $key = $path->as_string;
1475
1476	if (my $map = $cf::MAP{$key}) {
1477	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1478	}
1479
1480	$MAP_PREFETCH{$key} = $path;
1481	$MAP_PREFETCHER->ready;	2096	$MAP_PREFETCHER->prio (6);
1482		2097
1483	()	2098	()
1484	}	2099	}
1485		2100
1486	sub save {	2101	sub save {
1487	my ($self) = @_;	2102	my ($self) = @_;
1488		2103
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2105
1491	$self->{last_save} = $cf::RUNTIME;	2106	$self->{last_save} = $cf::RUNTIME;
1492		2107
1493	return unless $self->dirty;	2108	return unless $self->dirty;
1494		2109
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2110	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2111	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2112
1498	$self->{load_path} = $save;	2113	$self->{load_path} = $save;
1499		2114
1500	return if $self->{deny_save};	2115	return if $self->{deny_save};
1501		2116
1502	local $self->{last_access} = $self->last_access;#d#	2117	local $self->{last_access} = $self->last_access;#d#
1503		2118
1504	cf::async {	2119	cf::async {
		2120	$Coro::current->{desc} = "map player save";
1505	$_->contr->save for $self->players;	2121	$_->contr->save for $self->players;
1506	};	2122	};
1507		2123
1508	if ($uniq) {	2124	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2125	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2126	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2127	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2128	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2129	}
1514	}	2130	}
1515		2131
1516	sub swap_out {	2132	sub swap_out {
1517	my ($self) = @_;	2133	my ($self) = @_;
1518		2134
1519	# save first because save cedes	2135	# save first because save cedes
1520	$self->save;	2136	$self->save;
1521		2137
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2138	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2139
1524	return if $self->players;	2140	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2141	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2142	return if $self->{deny_save};
1527		2143
		2144	$self->in_memory (cf::MAP_SWAPPED);
		2145
		2146	$self->deactivate;
		2147	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2148	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2149	}
1531		2150
1532	sub reset_at {	2151	sub reset_at {
1533	my ($self) = @_;	2152	my ($self) = @_;
1534		2153
1535	# TODO: safety, remove and allow resettable per-player maps	2154	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2155	return 1e99 if $self->{deny_reset};
1538		2156
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2157	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2158	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2159
…		…
1546	my ($self) = @_;	2164	my ($self) = @_;
1547		2165
1548	$self->reset_at <= $cf::RUNTIME	2166	$self->reset_at <= $cf::RUNTIME
1549	}	2167	}
1550		2168
1551	sub unlink_save {
1552	my ($self) = @_;
1553
1554	utf8::encode (my $save = $self->{path}->save_path);
1555	aioreq_pri 3; IO::AIO::aio_unlink $save;
1556	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1557	}
1558
1559	sub rename {
1560	my ($self, $new_path) = @_;
1561
1562	$self->unlink_save;
1563
1564	delete $cf::MAP{$self->path};
1565	$self->{path} = new cf::path $new_path;
1566	$self->path ($self->{path}->as_string);
1567	$cf::MAP{$self->path} = $self;
1568
1569	$self->save;
1570	}
1571
1572	sub reset {	2169	sub reset {
1573	my ($self) = @_;	2170	my ($self) = @_;
1574		2171
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2173
1577	return if $self->players;	2174	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2175
1580	warn "resetting map ", $self->path;#d#	2176	warn "resetting map ", $self->path;
		2177
		2178	$self->in_memory (cf::MAP_SWAPPED);
		2179
		2180	# need to save uniques path
		2181	unless ($self->{deny_save}) {
		2182	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2183
		2184	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2185	if $uniq;
		2186	}
1581		2187
1582	delete $cf::MAP{$self->path};	2188	delete $cf::MAP{$self->path};
1583		2189
		2190	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2191	$_->clear_links_to ($self) for values %cf::MAP;
		2192	$self->clear;
1585		2193
1586	$self->unlink_save;	2194	$self->unlink_save;
1587	$self->destroy;	2195	$self->destroy;
1588	}	2196	}
1589		2197
1590	my $nuke_counter = "aaaa";	2198	my $nuke_counter = "aaaa";
1591		2199
1592	sub nuke {	2200	sub nuke {
1593	my ($self) = @_;	2201	my ($self) = @_;
1594		2202
		2203	{
		2204	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2205
		2206	delete $cf::MAP{$self->path};
		2207
		2208	$self->unlink_save;
		2209
		2210	bless $self, "cf::map";
		2211	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2212	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2213	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2214	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2215
		2216	$cf::MAP{$self->path} = $self;
		2217	}
		2218
1598	$self->reset; # polite request, might not happen	2219	$self->reset; # polite request, might not happen
1599	}	2220	}
1600		2221
1601	sub customise_for {	2222	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2223
1604	if ($map->per_player) {	2224	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2225	maps. May block.
		2226
		2227	=cut
		2228
		2229	sub tmp_maps() {
1606	}	2230	[
		2231	map {
		2232	utf8::decode $_;
		2233	/\.map$/
		2234	? normalise $_
		2235	: ()
		2236	} @{ aio_readdir $TMPDIR or [] }
		2237	]
		2238	}
1607		2239
1608	$map	2240	=item $maps = cf::map::random_maps
		2241
		2242	Returns an arrayref with all map paths of currently instantiated and saved
		2243	random maps. May block.
		2244
		2245	=cut
		2246
		2247	sub random_maps() {
		2248	[
		2249	map {
		2250	utf8::decode $_;
		2251	/\.map$/
		2252	? normalise "?random/$_"
		2253	: ()
		2254	} @{ aio_readdir $RANDOMDIR or [] }
		2255	]
1609	}	2256	}
1610		2257
1611	=item cf::map::unique_maps	2258	=item cf::map::unique_maps
1612		2259
1613	Returns an arrayref of cf::path's of all shared maps that have	2260	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2261	instantiated unique items. May block.
1615		2262
1616	=cut	2263	=cut
1617		2264
1618	sub unique_maps() {	2265	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2266	[
1620	or return;	2267	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2268	utf8::decode $_;
1626	next if /\.pst$/;	2269	/\.map$/
1627	next unless /^$PATH_SEP/o;	2270	? normalise $_
1628		2271	: ()
1629	push @paths, new cf::path $_;	2272	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2273	]
1631
1632	\@paths
1633	}	2274	}
1634		2275
1635	package cf;	2276	package cf;
1636		2277
1637	=back	2278	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2296	map { $_, inv_recursive_ $_->inv } @_
1656	}	2297	}
1657		2298
1658	sub inv_recursive {	2299	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2300	inv_recursive_ inv $_[0]
		2301	}
		2302
		2303	=item $ref = $ob->ref
		2304
		2305	creates and returns a persistent reference to an objetc that can be stored as a string.
		2306
		2307	=item $ob = cf::object::deref ($refstring)
		2308
		2309	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2310	even if the object actually exists. May block.
		2311
		2312	=cut
		2313
		2314	sub deref {
		2315	my ($ref) = @_;
		2316
		2317	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2318	my ($uuid, $name) = ($1, $2);
		2319	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2320	or return;
		2321	$pl->ob->uuid eq $uuid
		2322	or return;
		2323
		2324	$pl->ob
		2325	} else {
		2326	warn "$ref: cannot resolve object reference\n";
		2327	undef
		2328	}
1660	}	2329	}
1661		2330
1662	package cf;	2331	package cf;
1663		2332
1664	=back	2333	=back
…		…
1683		2352
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2353	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2354
1686	if ($self->{record_replies}) {	2355	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2356	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2357
1688	} else {	2358	} else {
		2359	my $pl = $self->contr;
		2360
		2361	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2362	my $dialog = $pl->{npc_dialog};
		2363	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2364
		2365	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2366	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2367	$self->message ($msg, $flags);
		2368	}
1691	}	2369	}
		2370	}
		2371
		2372	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2373
		2374	=cut
		2375
		2376	sub cf::object::send_msg {
		2377	my $pl = shift->contr
		2378	or return;
		2379	$pl->send_msg (@_);
1692	}	2380	}
1693		2381
1694	=item $player_object->may ("access")	2382	=item $player_object->may ("access")
1695		2383
1696	Returns wether the given player is authorized to access resource "access"	2384	Returns wether the given player is authorized to access resource "access"
…		…
1709		2397
1710	=item $player_object->enter_link	2398	=item $player_object->enter_link
1711		2399
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2400	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2401
1714	The player should be reaosnably safe there for short amounts of time. You	2402	The player should be reasonably safe there for short amounts of time. You
1715	I<MUST> call C<leave_link> as soon as possible, though.	2403	I<MUST> call C<leave_link> as soon as possible, though.
1716		2404
		2405	Will never block.
		2406
1717	=item $player_object->leave_link ($map, $x, $y)	2407	=item $player_object->leave_link ($map, $x, $y)
1718		2408
1719	Moves the player out of the specila link map onto the given map. If the	2409	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2410	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2411	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2412	fails, to the emergency map position.
1723		2413
1724	Might block.	2414	Might block.
1725		2415
1726	=cut	2416	=cut
		2417
		2418	sub link_map {
		2419	unless ($LINK_MAP) {
		2420	$LINK_MAP = cf::map::find "{link}"
		2421	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2422	$LINK_MAP->load;
		2423	}
		2424
		2425	$LINK_MAP
		2426	}
1727		2427
1728	sub cf::object::player::enter_link {	2428	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2429	my ($self) = @_;
1730		2430
1731	$self->deactivate_recursive;	2431	$self->deactivate_recursive;
1732		2432
1733	return if $self->map == $LINK_MAP;	2433	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2434
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2435	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2436	if $self->map && $self->map->{path} ne "{link}";
1737		2437
1738	$self->enter_map ($LINK_MAP, 20, 20);	2438	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2439	}
1740		2440
1741	sub cf::object::player::leave_link {	2441	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2442	my ($self, $map, $x, $y) = @_;
		2443
		2444	return unless $self->contr->active;
1743		2445
1744	my $link_pos = delete $self->{_link_pos};	2446	my $link_pos = delete $self->{_link_pos};
1745		2447
1746	unless ($map) {	2448	unless ($map) {
1747	# restore original map position	2449	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2463	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2464	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2465	if $x <=0 && $y <= 0;
1764		2466
1765	$map->load;	2467	$map->load;
1766	$map->load_diag;	2468	$map->load_neighbours;
1767		2469
1768	return unless $self->contr->active;	2470	return unless $self->contr->active;
1769	$self->activate_recursive;	2471	$self->activate_recursive;
		2472
		2473	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2474	$self->enter_map ($map, $x, $y);
1771	}	2475	}
1772		2476
1773	cf::player->attach (	2477	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2478
1777	# abort map switching before logout	2479	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2480	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2481	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2482	the new (success) or old (failed) map position. In either case, $done will
1781	};	2483	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2484
1787	# try to abort aborted map switching on player login :)
1788	# should happen only on crashes
1789	if ($pl->ob->{_link_pos}) {
1790	$pl->ob->enter_link;
1791	(async {
1792	# we need this sleep as the login has a concurrent enter_exit running
1793	# and this sleep increases chances of the player not ending up in scorn
1794	$pl->ob->reply (undef,
1795	"There was an internal problem at your last logout, "
1796	. "the server will try to bring you to your intended destination in a second.",
1797	cf::NDI_RED);
1798	Coro::Timer::sleep 1;
1799	$pl->ob->leave_link;
1800	})->prio (2);
1801	}
1802	},
1803	);
1804
1805	=item $player_object->goto ($path, $x, $y)
1806
1807	=cut	2485	=cut
		2486
		2487	our $GOTOGEN;
1808		2488
1809	sub cf::object::player::goto {	2489	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2490	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2491
1812	$path = new cf::path $path;	2492	# do generation counting so two concurrent goto's will be executed in-order
		2493	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2494
1814	$self->enter_link;	2495	$self->enter_link;
1815		2496
1816	(async {	2497	(async {
1817	my $map = cf::map::find $path->as_string;	2498	$Coro::current->{desc} = "player::goto $path $x $y";
		2499
		2500	# *tag paths override both path and x|y
		2501	if ($path =~ /^\*(.*)$/) {
		2502	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2503	my $ob = $obs[rand @obs];
		2504
		2505	# see if we actually can go there
		2506	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2507	$ob = $obs[rand @obs];
		2508	} else {
		2509	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2510	}
		2511	# else put us there anyways for now #d#
		2512
		2513	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2514	} else {
		2515	($path, $x, $y) = (undef, undef, undef);
		2516	}
		2517	}
		2518
		2519	my $map = eval {
		2520	my $map = defined $path ? cf::map::find $path : undef;
		2521
		2522	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2523	$map = $map->customise_for ($self);
1819		2524	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2525	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2526	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2527	}
1824		2528
		2529	$map
		2530	};
		2531
		2532	if ($@) {
		2533	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2534	LOG llevError | logBacktrace, Carp::longmess $@;
		2535	}
		2536
		2537	if ($gen == $self->{_goto_generation}) {
		2538	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2539	$self->leave_link ($map, $x, $y);
		2540	}
		2541
		2542	$done->() if $done;
1826	})->prio (1);	2543	})->prio (1);
1827	}	2544	}
1828		2545
1829	=item $player_object->enter_exit ($exit_object)	2546	=item $player_object->enter_exit ($exit_object)
1830		2547
…		…
1832		2549
1833	sub parse_random_map_params {	2550	sub parse_random_map_params {
1834	my ($spec) = @_;	2551	my ($spec) = @_;
1835		2552
1836	my $rmp = { # defaults	2553	my $rmp = { # defaults
1837	xsize => 10,	2554	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2555	ysize => (cf::rndm 15, 40),
		2556	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2557	#layout => string,
1839	};	2558	};
1840		2559
1841	for (split /\n/, $spec) {	2560	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2561	my ($k, $v) = split /\s+/, $_, 2;
1843		2562
…		…
1847	$rmp	2566	$rmp
1848	}	2567	}
1849		2568
1850	sub prepare_random_map {	2569	sub prepare_random_map {
1851	my ($exit) = @_;	2570	my ($exit) = @_;
		2571
		2572	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2573
1853	# all this does is basically replace the /! path by	2574	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2575	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2576	# that depends on the exit object
1856		2577
1857	my $rmp = parse_random_map_params $exit->msg;	2578	my $rmp = parse_random_map_params $exit->msg;
1858		2579
1859	if ($exit->map) {	2580	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2581	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2582	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2583	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2584	$rmp->{origin_y} = $exit->y;
1864	}	2585	}
1865		2586
1866	$rmp->{random_seed} ||= $exit->random_seed;	2587	$rmp->{random_seed} ||= $exit->random_seed;
1867		2588
1868	my $data = cf::to_json $rmp;	2589	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2590	my $md5 = Digest::MD5::md5_hex $data;
		2591	my $meta = "$RANDOMDIR/$md5.meta";
1870		2592
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2593	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2594	aio_write $fh, 0, (length $data), $data, 0;
		2595	undef $fh;
		2596	aio_rename "$meta~", $meta;
1873		2597
1874	$exit->slaying ("?random/$md5");	2598	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2599	$exit->msg (undef);
1876	}	2600	}
1877	}	2601	}
…		…
1879	sub cf::object::player::enter_exit {	2603	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2604	my ($self, $exit) = @_;
1881		2605
1882	return unless $self->type == cf::PLAYER;	2606	return unless $self->type == cf::PLAYER;
1883		2607
		2608	if ($exit->slaying eq "/!") {
		2609	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2610	# the problem is that $exit might not survive long enough
		2611	# so it needs to be done right now, right here
		2612	cf::sync_job { prepare_random_map $exit };
		2613	}
		2614
		2615	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2616	my $hp = $exit->stats->hp;
		2617	my $sp = $exit->stats->sp;
		2618
1884	$self->enter_link;	2619	$self->enter_link;
1885		2620
		2621	# if exit is damned, update players death & WoR home-position
		2622	$self->contr->savebed ($slaying, $hp, $sp)
		2623	if $exit->flag (FLAG_DAMNED);
		2624
1886	(async {	2625	(async {
		2626	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2627
1887	$self->deactivate_recursive; # just to be sure	2628	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2629	unless (eval {
1889	prepare_random_map $exit	2630	$self->goto ($slaying, $hp, $sp);
1890	if $exit->slaying eq "/!";
1891
1892	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1893	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1894		2631
1895	1;	2632	1;
1896	}) {	2633	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2634	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2635	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2636	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2637	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2638
1902	warn "ERROR in enter_exit: $@";	2639	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2640	$self->leave_link;
1904	}	2641	}
1905	})->prio (1);	2642	})->prio (1);
…		…
1918		2655
1919	sub cf::client::send_drawinfo {	2656	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2657	my ($self, $text, $flags) = @_;
1921		2658
1922	utf8::encode $text;	2659	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2660	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2661	}
1925		2662
		2663	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2664
		2665	Send a drawinfo or msg packet to the client, formatting the msg for the
		2666	client if neccessary. C<$type> should be a string identifying the type of
		2667	the message, with C<log> being the default. If C<$color> is negative, suppress
		2668	the message unless the client supports the msg packet.
		2669
		2670	=cut
		2671
		2672	our %CHANNEL = (
		2673	"c/identify" => {
		2674	id => "infobox",
		2675	title => "Identify",
		2676	reply => undef,
		2677	tooltip => "Items recently identified",
		2678	},
		2679	"c/examine" => {
		2680	id => "infobox",
		2681	title => "Examine",
		2682	reply => undef,
		2683	tooltip => "Signs and other items you examined",
		2684	},
		2685	"c/lookat" => {
		2686	id => "infobox",
		2687	title => "Look",
		2688	reply => undef,
		2689	tooltip => "What you saw there",
		2690	},
		2691	);
		2692
		2693	sub cf::client::send_msg {
		2694	my ($self, $channel, $msg, $color, @extra) = @_;
		2695
		2696	$msg = $self->pl->expand_cfpod ($msg);
		2697
		2698	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2699
		2700	# check predefined channels, for the benefit of C
		2701	if ($CHANNEL{$channel}) {
		2702	$channel = $CHANNEL{$channel};
		2703
		2704	$self->ext_msg (channel_info => $channel)
		2705	if $self->can_msg;
		2706
		2707	$channel = $channel->{id};
		2708
		2709	} elsif (ref $channel) {
		2710	# send meta info to client, if not yet sent
		2711	unless (exists $self->{channel}{$channel->{id}}) {
		2712	$self->{channel}{$channel->{id}} = $channel;
		2713	$self->ext_msg (channel_info => $channel)
		2714	if $self->can_msg;
		2715	}
		2716
		2717	$channel = $channel->{id};
		2718	}
		2719
		2720	return unless @extra || length $msg;
		2721
		2722	if ($self->can_msg) {
		2723	# default colour, mask it out
		2724	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2725	if $color & cf::NDI_DEF;
		2726
		2727	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2728	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2729	} else {
		2730	if ($color >= 0) {
		2731	# replace some tags by gcfclient-compatible ones
		2732	for ($msg) {
		2733	1 while
		2734	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2735	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2736	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2737	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2738	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2739	}
		2740
		2741	$color &= cf::NDI_COLOR_MASK;
		2742
		2743	utf8::encode $msg;
		2744
		2745	if (0 && $msg =~ /\[/) {
		2746	# COMMAND/INFO
		2747	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2748	} else {
		2749	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2750	$self->send_packet ("drawinfo $color $msg")
		2751	}
		2752	}
		2753	}
		2754	}
		2755
		2756	=item $client->ext_msg ($type, @msg)
		2757
		2758	Sends an ext event to the client.
		2759
		2760	=cut
		2761
		2762	sub cf::client::ext_msg($$@) {
		2763	my ($self, $type, @msg) = @_;
		2764
		2765	if ($self->extcmd == 2) {
		2766	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2767	} elsif ($self->extcmd == 1) { # TODO: remove
		2768	push @msg, msgtype => "event_$type";
		2769	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2770	}
		2771	}
		2772
		2773	=item $client->ext_reply ($msgid, @msg)
		2774
		2775	Sends an ext reply to the client.
		2776
		2777	=cut
		2778
		2779	sub cf::client::ext_reply($$@) {
		2780	my ($self, $id, @msg) = @_;
		2781
		2782	if ($self->extcmd == 2) {
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2784	} elsif ($self->extcmd == 1) {
		2785	#TODO: version 1, remove
		2786	unshift @msg, msgtype => "reply", msgid => $id;
		2787	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2788	}
		2789	}
1926		2790
1927	=item $success = $client->query ($flags, "text", \&cb)	2791	=item $success = $client->query ($flags, "text", \&cb)
1928		2792
1929	Queues a query to the client, calling the given callback with	2793	Queues a query to the client, calling the given callback with
1930	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2794	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1931	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2795	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2796
1933	Queries can fail, so check the return code. Or don't, as queries will become	2797	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2798	become reliable at some point in the future.
1935		2799
1936	=cut	2800	=cut
1937		2801
1938	sub cf::client::query {	2802	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2803	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2811	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2812	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2813
1950	$self->send_packet ($self->{query_queue}[0][0])	2814	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2815	if @{ $self->{query_queue} } == 1;
		2816
		2817	1
1952	}	2818	}
1953		2819
1954	cf::client->attach (	2820	cf::client->attach (
		2821	on_connect => sub {
		2822	my ($ns) = @_;
		2823
		2824	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2825	},
1955	on_reply => sub {	2826	on_reply => sub {
1956	my ($ns, $msg) = @_;	2827	my ($ns, $msg) = @_;
1957		2828
1958	# this weird shuffling is so that direct followup queries	2829	# this weird shuffling is so that direct followup queries
1959	# get handled first	2830	# get handled first
1960	my $queue = delete $ns->{query_queue}	2831	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2832	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2833
1963	(shift @$queue)->[1]->($msg);	2834	(shift @$queue)->[1]->($msg);
		2835	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2836
1965	push @{ $ns->{query_queue} }, @$queue;	2837	push @{ $ns->{query_queue} }, @$queue;
1966		2838
1967	if (@{ $ns->{query_queue} } == @$queue) {	2839	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2840	if (@$queue) {
…		…
1970	} else {	2842	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2843	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2844	}
1973	}	2845	}
1974	},	2846	},
		2847	on_exticmd => sub {
		2848	my ($ns, $buf) = @_;
		2849
		2850	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2851
		2852	if (ref $msg) {
		2853	my ($type, $reply, @payload) =
		2854	"ARRAY" eq ref $msg
		2855	? @$msg
		2856	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2857
		2858	my @reply;
		2859
		2860	if (my $cb = $EXTICMD{$type}) {
		2861	@reply = $cb->($ns, @payload);
		2862	}
		2863
		2864	$ns->ext_reply ($reply, @reply)
		2865	if $reply;
		2866
		2867	} else {
		2868	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2869	}
		2870
		2871	cf::override;
		2872	},
1975	);	2873	);
1976		2874
1977	=item $client->async (\&cb)	2875	=item $client->async (\&cb)
1978		2876
1979	Create a new coroutine, running the specified callback. The coroutine will	2877	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	2918	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	2919	our $safe_hole = new Safe::Hole;
2022		2920
2023	$SIG{FPE} = 'IGNORE';	2921	$SIG{FPE} = 'IGNORE';
2024		2922
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2923	$safe->permit_only (Opcode::opset qw(
		2924	:base_core :base_mem :base_orig :base_math
		2925	grepstart grepwhile mapstart mapwhile
		2926	sort time
		2927	));
2026		2928
2027	# here we export the classes and methods available to script code	2929	# here we export the classes and methods available to script code
2028		2930
2029	=pod	2931	=pod
2030		2932
2031	The following fucntions and emthods are available within a safe environment:	2933	The following functions and methods are available within a safe environment:
2032		2934
2033	cf::object contr pay_amount pay_player map	2935	cf::object
		2936	contr pay_amount pay_player map x y force_find force_add destroy
		2937	insert remove name archname title slaying race decrease_ob_nr
		2938
2034	cf::object::player player	2939	cf::object::player
2035	cf::player peaceful	2940	player
2036	cf::map trigger	2941
		2942	cf::player
		2943	peaceful
		2944
		2945	cf::map
		2946	trigger
2037		2947
2038	=cut	2948	=cut
2039		2949
2040	for (	2950	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	2951	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2952	insert remove inv name archname title slaying race
		2953	decrease_ob_nr destroy)],
2042	["cf::object::player" => qw(player)],	2954	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	2955	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	2956	["cf::map" => qw(trigger)],
2045	) {	2957	) {
2046	no strict 'refs';	2958	no strict 'refs';
…		…
2117	=back	3029	=back
2118		3030
2119	=cut	3031	=cut
2120		3032
2121	#############################################################################	3033	#############################################################################
		3034	# the server's init and main functions
2122		3035
2123	=head2 EXTENSION DATABASE SUPPORT	3036	sub load_facedata($) {
		3037	my ($path) = @_;
2124		3038
2125	Crossfire maintains a very simple database for extension use. It can	3039	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	3040	# for this (global event?)
2127	excludes objects.	3041	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		3042
2129	The parameter C<$family> should best start with the name of the extension	3043	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		3044
2132	=over 4	3045	warn "loading facedata from $path\n";
2133		3046
2134	=item $hashref = cf::db_get $family	3047	my $facedata;
		3048	0 < aio_load $path, $facedata
		3049	or die "$path: $!";
2135		3050
2136	Return a hashref for use by the extension C<$family>, which can be	3051	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		3052
2140	=item $value = cf::db_get $family => $key	3053	$facedata->{version} == 2
		3054	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		3055
2142	Returns a single value from the database	3056	# patch in the exptable
2143		3057	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3058	type => FT_RSRC,
2145		3059	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2146	Stores the given family hashref into the database. Updates are delayed, if
2147	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2148
2149	=item cf::db_put $family => $key => $value
2150
2151	Stores the given C<$value> in the family hash. Updates are delayed, if you
2152	want the data to be synced to disk immediately, use C<cf::db_sync>.
2153
2154	=item cf::db_dirty
2155
2156	Marks the database as dirty, to be updated at a later time.
2157
2158	=item cf::db_sync
2159
2160	Immediately write the database to disk I<if it is dirty>.
2161
2162	=cut
2163
2164	our $DB;
2165
2166	{
2167	my $path = cf::localdir . "/database.pst";
2168
2169	sub db_load() {
2170	$DB = stat $path ? Storable::retrieve $path : { };
2171	}
2172
2173	my $pid;
2174
2175	sub db_save() {
2176	waitpid $pid, 0 if $pid;
2177	if (0 == ($pid = fork)) {
2178	$DB->{_meta}{version} = 1;
2179	Storable::nstore $DB, "$path~";
2180	rename "$path~", $path;
2181	cf::_exit 0 if defined $pid;
2182	}
2183	}
2184
2185	my $dirty;
2186
2187	sub db_sync() {
2188	db_save if $dirty;
2189	undef $dirty;
2190	}
2191
2192	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2193	db_sync;
2194	});	3060	};
		3061	cf::cede_to_tick;
2195		3062
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3063	{
		3064	my $faces = $facedata->{faceinfo};
2200		3065
2201	sub db_get($;$) {	3066	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3067	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3068	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3069	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3070	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3071	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3072
2207	sub db_put($$;$) {	3073	cf::cede_to_tick;
2208	if (@_ >= 3) {
2209	$DB->{$_[0]}{$_[1]} = $_[2];
2210	} else {
2211	$DB->{$_[0]} = $_[1];
2212	}
2213	db_dirty;
2214	}
2215
2216	cf::global->attach (
2217	prio => 10000,
2218	on_cleanup => sub {
2219	db_sync;
2220	},	3074	}
2221	);
2222	}
2223		3075
2224	#############################################################################	3076	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3077	next unless $info->{smooth};
		3078	my $idx = cf::face::find $face
		3079	or next;
		3080	if (my $smooth = cf::face::find $info->{smooth}) {
		3081	cf::face::set_smooth $idx, $smooth;
		3082	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3083	} else {
		3084	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3085	}
2226		3086
2227	sub cfg_load {	3087	cf::cede_to_tick;
		3088	}
		3089	}
		3090
		3091	{
		3092	my $anims = $facedata->{animinfo};
		3093
		3094	while (my ($anim, $info) = each %$anims) {
		3095	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3096	cf::cede_to_tick;
		3097	}
		3098
		3099	cf::anim::invalidate_all; # d'oh
		3100	}
		3101
		3102	{
		3103	# TODO: for gcfclient pleasure, we should give resources
		3104	# that gcfclient doesn't grok a >10000 face index.
		3105	my $res = $facedata->{resource};
		3106
		3107	my $soundconf = delete $res->{"res/sound.conf"};
		3108
		3109	while (my ($name, $info) = each %$res) {
		3110	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3111	my $data;
		3112
		3113	if ($info->{type} & 1) {
		3114	# prepend meta info
		3115
		3116	my $meta = $enc->encode ({
		3117	name => $name,
		3118	%{ $info->{meta} || {} },
		3119	});
		3120
		3121	$data = pack "(w/a*)*", $meta, $info->{data};
		3122	} else {
		3123	$data = $info->{data};
		3124	}
		3125
		3126	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3127	cf::face::set_type $idx, $info->{type};
		3128
		3129	cf::cede_to_tick;
		3130	}
		3131
		3132	if ($soundconf) {
		3133	$soundconf = $enc->decode (delete $soundconf->{data});
		3134
		3135	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3136	my $sound = $soundconf->{compat}[$_]
		3137	or next;
		3138
		3139	my $face = cf::face::find "sound/$sound->[1]";
		3140	cf::sound::set $sound->[0] => $face;
		3141	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3142	}
		3143
		3144	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3145	my $face = cf::face::find "sound/$v";
		3146	cf::sound::set $k => $face;
		3147	}
		3148	}
		3149	}
		3150
		3151	1
		3152	}
		3153
		3154	register_exticmd fx_want => sub {
		3155	my ($ns, $want) = @_;
		3156
		3157	while (my ($k, $v) = each %$want) {
		3158	$ns->fx_want ($k, $v);
		3159	}
		3160	};
		3161
		3162	sub reload_regions {
		3163	# HACK to clear player env face cache, we need some signal framework
		3164	# for this (global event?)
		3165	%ext::player_env::MUSIC_FACE_CACHE = ();
		3166
		3167	load_resource_file "$MAPDIR/regions"
		3168	or die "unable to load regions file\n";
		3169
		3170	for (cf::region::list) {
		3171	$_->{match} = qr/$_->{match}/
		3172	if exists $_->{match};
		3173	}
		3174	}
		3175
		3176	sub reload_facedata {
		3177	load_facedata "$DATADIR/facedata"
		3178	or die "unable to load facedata\n";
		3179	}
		3180
		3181	sub reload_archetypes {
		3182	load_resource_file "$DATADIR/archetypes"
		3183	or die "unable to load archetypes\n";
		3184	#d# NEED to laod twice to resolve forward references
		3185	# this really needs to be done in an extra post-pass
		3186	# (which needs to be synchronous, so solve it differently)
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	}
		3190
		3191	sub reload_treasures {
		3192	load_resource_file "$DATADIR/treasures"
		3193	or die "unable to load treasurelists\n";
		3194	}
		3195
		3196	sub reload_resources {
		3197	warn "reloading resource files...\n";
		3198
		3199	reload_regions;
		3200	reload_facedata;
		3201	#reload_archetypes;#d#
		3202	reload_archetypes;
		3203	reload_treasures;
		3204
		3205	warn "finished reloading resource files\n";
		3206	}
		3207
		3208	sub init {
		3209	reload_resources;
		3210	}
		3211
		3212	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3213	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3214	or return;
2230		3215
2231	local $/;	3216	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3217	*CFG = YAML::Syck::Load <$fh>;
2233		3218
…		…
2247		3232
2248	sub main {	3233	sub main {
2249	# we must not ever block the main coroutine	3234	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3235	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3237	(async {
		3238	$Coro::current->{desc} = "IDLE BUG HANDLER";
2252	async { Event::one_event };	3239	Event::one_event;
		3240	})->prio (Coro::PRIO_MAX);
2253	};	3241	};
2254		3242
2255	cfg_load;	3243	reload_config;
2256	db_load;	3244	db_init;
2257	load_extensions;	3245	load_extensions;
		3246
		3247	$TICK_WATCHER->start;
2258	Event::loop;	3248	Event::loop;
2259	}	3249	}
2260		3250
2261	#############################################################################	3251	#############################################################################
2262	# initialisation and cleanup	3252	# initialisation and cleanup
2263		3253
2264	# install some emergency cleanup handlers	3254	# install some emergency cleanup handlers
2265	BEGIN {	3255	BEGIN {
2266	for my $signal (qw(INT HUP TERM)) {	3256	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3257	Event->signal (
		3258	reentrant => 0,
2268	data => WF_AUTOCANCEL,	3259	data => WF_AUTOCANCEL,
2269	signal => $signal,	3260	signal => $signal,
		3261	prio => 0,
2270	cb => sub {	3262	cb => sub {
2271	cf::cleanup "SIG$signal";	3263	cf::cleanup "SIG$signal";
2272	},	3264	},
2273	);	3265	);
2274	}	3266	}
2275	}	3267	}
2276		3268
		3269	sub write_runtime {
		3270	my $runtime = "$LOCALDIR/runtime";
		3271
		3272	# first touch the runtime file to show we are still running:
		3273	# the fsync below can take a very very long time.
		3274
		3275	IO::AIO::aio_utime $runtime, undef, undef;
		3276
		3277	my $guard = cf::lock_acquire "write_runtime";
		3278
		3279	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3280	or return;
		3281
		3282	my $value = $cf::RUNTIME + 90 + 10;
		3283	# 10 is the runtime save interval, for a monotonic clock
		3284	# 60 allows for the watchdog to kill the server.
		3285
		3286	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3287	and return;
		3288
		3289	# always fsync - this file is important
		3290	aio_fsync $fh
		3291	and return;
		3292
		3293	# touch it again to show we are up-to-date
		3294	aio_utime $fh, undef, undef;
		3295
		3296	close $fh
		3297	or return;
		3298
		3299	aio_rename "$runtime~", $runtime
		3300	and return;
		3301
		3302	warn "runtime file written.\n";
		3303
		3304	1
		3305	}
		3306
2277	sub emergency_save() {	3307	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3308	my $freeze_guard = cf::freeze_mainloop;
2279		3309
2280	warn "enter emergency perl save\n";	3310	warn "enter emergency perl save\n";
2281		3311
2282	cf::sync_job {	3312	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3313	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3314	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3315	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3316	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3317	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3318	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3319	$pl->valid or next;
		3320	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2290	$pl->save;	3321	$pl->save;
2291	}	3322	}
2292	warn "end emergency player save\n";	3323	warn "end emergency player save\n";
2293		3324
2294	warn "begin emergency map save\n";	3325	warn "begin emergency map save\n";
…		…
2296	my $map = $cf::MAP{$path} or next;	3327	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3328	$map->valid or next;
2298	$map->save;	3329	$map->save;
2299	}	3330	}
2300	warn "end emergency map save\n";	3331	warn "end emergency map save\n";
		3332
		3333	warn "begin emergency database checkpoint\n";
		3334	BDB::db_env_txn_checkpoint $DB_ENV;
		3335	warn "end emergency database checkpoint\n";
2301	};	3336	};
2302		3337
2303	warn "leave emergency perl save\n";	3338	warn "leave emergency perl save\n";
2304	}	3339	}
2305		3340
		3341	sub post_cleanup {
		3342	my ($make_core) = @_;
		3343
		3344	warn Carp::longmess "post_cleanup backtrace"
		3345	if $make_core;
		3346	}
		3347
2306	sub reload() {	3348	sub do_reload_perl() {
2307	# can/must only be called in main	3349	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3350	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3351	warn "can only reload from main coroutine";
2310	return;	3352	return;
2311	}	3353	}
2312		3354
2313	warn "reloading...";	3355	warn "reloading...";
2314		3356
2315	warn "freezing server";	3357	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3358
		3359	cf::sync_job {
		3360	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3361	cf::emergency_save;
		3362	cf::write_runtime; # external watchdog should not bark
2318		3363
2319	warn "sync database to disk";	3364	warn "syncing database to disk";
2320	cf::db_sync;	3365	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3366
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3367	# if anything goes wrong in here, we should simply crash as we already saved
2325		3368
2326	warn "cancel all watchers";	3369	warn "cancelling all WF_AUTOCANCEL watchers";
2327	for (Event::all_watchers) {	3370	for (Event::all_watchers) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3371	$_->cancel if $_->data & WF_AUTOCANCEL;
2329	}	3372	}
2330		3373
		3374	warn "flushing outstanding aio requests";
		3375	for (;;) {
		3376	BDB::flush;
		3377	IO::AIO::flush;
		3378	Coro::cede_notself;
		3379	last unless IO::AIO::nreqs || BDB::nreqs;
		3380	warn "iterate...";
		3381	}
		3382
		3383	++$RELOAD;
		3384
2331	warn "cancel all extension coros";	3385	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3386	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3387	%EXT_CORO = ();
2334		3388
2335	warn "remove commands";	3389	warn "removing commands";
2336	%COMMAND = ();	3390	%COMMAND = ();
2337		3391
2338	warn "remove ext commands";	3392	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3393	%EXTCMD = ();
		3394	%EXTICMD = ();
2340		3395
2341	warn "unload/nuke all extensions";	3396	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3397	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3398	warn "... unloading $pkg";
2344		3399
2345	if (my $cb = $pkg->can ("unload")) {	3400	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3401	eval {
…		…
2351		3406
2352	warn "... nuking $pkg";	3407	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3408	Symbol::delete_package $pkg;
2354	}	3409	}
2355		3410
2356	warn "unload all perl modules loaded from $LIBDIR";	3411	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3412	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3413	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3414
2360	warn "removing <$k>";	3415	warn "... unloading $k";
2361	delete $INC{$k};	3416	delete $INC{$k};
2362		3417
2363	$k =~ s/\.pm$//;	3418	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3419	$k =~ s/\//::/g;
2365		3420
…		…
2368	}	3423	}
2369		3424
2370	Symbol::delete_package $k;	3425	Symbol::delete_package $k;
2371	}	3426	}
2372		3427
2373	warn "get rid of safe::, as good as possible";	3428	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3429	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3430	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3431
2377	warn "unload cf.pm \"a bit\"";	3432	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3433	delete $INC{"cf.pm"};
		3434	delete $INC{"cf/pod.pm"};
2379		3435
2380	# don't, removes xs symbols, too,	3436	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3437	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3438	#Symbol::delete_package __PACKAGE__;
2383		3439
		3440	warn "unload completed, starting to reload now";
		3441
2384	warn "reloading cf.pm";	3442	warn "reloading cf.pm";
2385	require cf;	3443	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3445
2388	warn "load config and database again";	3446	warn "loading config and database again";
2389	cf::cfg_load;	3447	cf::reload_config;
2390	cf::db_load;
2391		3448
2392	warn "load extensions";	3449	warn "loading extensions";
2393	cf::load_extensions;	3450	cf::load_extensions;
2394		3451
2395	warn "reattach attachments to objects/players";	3452	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3453	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3454	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3455	reattach $_ for values %MAP;
2399	};	3456	warn "reattaching attachments to players";
		3457	reattach $_ for values %PLAYER;
2400		3458
2401	if ($@) {	3459	warn "leaving sync_job";
		3460
		3461	1
		3462	} or do {
2402	warn $@;	3463	warn $@;
2403	warn "error while reloading, exiting.";	3464	warn "error while reloading, exiting.";
2404	exit 1;	3465	exit 1;
2405	}	3466	};
2406		3467
2407	warn "reloaded";	3468	warn "reloaded";
2408	};	3469	};
2409		3470
2410	#############################################################################	3471	our $RELOAD_WATCHER; # used only during reload
2411		3472
2412	unless ($LINK_MAP) {	3473	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3474	# doing reload synchronously and two reloads happen back-to-back,
		3475	# coro crashes during coro_state_free->destroy here.
2414		3476
2415	$LINK_MAP->width (41);	3477	$RELOAD_WATCHER ||= Event->timer (
2416	$LINK_MAP->height (41);	3478	reentrant => 0,
2417	$LINK_MAP->alloc;
2418	$LINK_MAP->path ("{link}");
2419	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2420	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2421
2422	# dirty hack because... archetypes are not yet loaded
2423	Event->timer (
2424	after => 10,	3479	after => 0,
		3480	data => WF_AUTOCANCEL,
2425	cb => sub {	3481	cb => sub {
2426	$_[0]->w->cancel;	3482	do_reload_perl;
2427		3483	undef $RELOAD_WATCHER;
2428	# provide some exits "home"
2429	my $exit = cf::object::new "exit";
2430
2431	$exit->slaying ($EMERGENCY_POSITION->[0]);
2432	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2433	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2434
2435	$LINK_MAP->insert ($exit->clone, 19, 19);
2436	$LINK_MAP->insert ($exit->clone, 19, 20);
2437	$LINK_MAP->insert ($exit->clone, 19, 21);
2438	$LINK_MAP->insert ($exit->clone, 20, 19);
2439	$LINK_MAP->insert ($exit->clone, 20, 21);
2440	$LINK_MAP->insert ($exit->clone, 21, 19);
2441	$LINK_MAP->insert ($exit->clone, 21, 20);
2442	$LINK_MAP->insert ($exit->clone, 21, 21);
2443
2444	$exit->destroy;
2445	});	3484	},
2446		3485	);
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3486	}
2452		3487
2453	register_command "reload" => sub {	3488	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3489	my ($who, $arg) = @_;
2455		3490
2456	if ($who->flag (FLAG_WIZ)) {	3491	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3492	$who->message ("reloading server.");
		3493	async {
		3494	$Coro::current->{desc} = "perl_reload";
		3495	reload_perl;
		3496	};
2460	}	3497	}
2461	};	3498	};
2462		3499
2463	unshift @INC, $LIBDIR;	3500	unshift @INC, $LIBDIR;
		3501
		3502	my $bug_warning = 0;
		3503
		3504	our @WAIT_FOR_TICK;
		3505	our @WAIT_FOR_TICK_BEGIN;
		3506
		3507	sub wait_for_tick {
		3508	return unless $TICK_WATCHER->is_active;
		3509	return if $Coro::current == $Coro::main;
		3510
		3511	my $signal = new Coro::Signal;
		3512	push @WAIT_FOR_TICK, $signal;
		3513	$signal->wait;
		3514	}
		3515
		3516	sub wait_for_tick_begin {
		3517	return unless $TICK_WATCHER->is_active;
		3518	return if $Coro::current == $Coro::main;
		3519
		3520	my $signal = new Coro::Signal;
		3521	push @WAIT_FOR_TICK_BEGIN, $signal;
		3522	$signal->wait;
		3523	}
2464		3524
2465	$TICK_WATCHER = Event->timer (	3525	$TICK_WATCHER = Event->timer (
2466	reentrant => 0,	3526	reentrant => 0,
		3527	parked => 1,
2467	prio => 0,	3528	prio => 0,
2468	at => $NEXT_TICK || $TICK,	3529	at => $NEXT_TICK || $TICK,
2469	data => WF_AUTOCANCEL,	3530	data => WF_AUTOCANCEL,
2470	cb => sub {	3531	cb => sub {
		3532	if ($Coro::current != $Coro::main) {
		3533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3534	unless ++$bug_warning > 10;
		3535	return;
		3536	}
		3537
		3538	$NOW = $tick_start = Event::time;
		3539
2471	cf::server_tick; # one server iteration	3540	cf::server_tick; # one server iteration
		3541
2472	$RUNTIME += $TICK;	3542	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3543	$NEXT_TICK += $TICK;
2474		3544
2475	$WAIT_FOR_TICK->broadcast;	3545	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3546	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3547	Coro::async_pool {
		3548	$Coro::current->{desc} = "runtime saver";
		3549	write_runtime
		3550	or warn "ERROR: unable to write runtime file: $!";
		3551	};
		3552	}
		3553
		3554	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3555	$sig->send;
		3556	}
		3557	while (my $sig = shift @WAIT_FOR_TICK) {
		3558	$sig->send;
		3559	}
		3560
		3561	$NOW = Event::time;
2477		3562
2478	# if we are delayed by four ticks or more, skip them all	3563	# if we are delayed by four ticks or more, skip them all
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3564	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2480		3565
2481	$TICK_WATCHER->at ($NEXT_TICK);	3566	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;	3567	$TICK_WATCHER->start;
		3568
		3569	$LOAD = ($NOW - $tick_start) / $TICK;
		3570	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3571
		3572	_post_tick;
2483	},	3573	},
2484	);	3574	);
2485		3575
		3576	{
		3577	BDB::min_parallel 8;
2486	IO::AIO::max_poll_time $TICK * 0.2;	3578	BDB::max_poll_time $TICK * 0.1;
2487		3579	$BDB_POLL_WATCHER = Event->io (
2488	Event->io (	3580	reentrant => 0,
2489	fd => IO::AIO::poll_fileno,	3581	fd => BDB::poll_fileno,
2490	poll => 'r',	3582	poll => 'r',
2491	prio => 5,	3583	prio => 0,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,	3584	data => WF_AUTOCANCEL,
		3585	cb => \&BDB::poll_cb,
		3586	);
		3587
		3588	BDB::set_sync_prepare {
		3589	my $status;
		3590	my $current = $Coro::current;
		3591	(
		3592	sub {
		3593	$status = $!;
		3594	$current->ready; undef $current;
		3595	},
		3596	sub {
		3597	Coro::schedule while defined $current;
		3598	$! = $status;
		3599	},
		3600	)
		3601	};
		3602
		3603	unless ($DB_ENV) {
		3604	$DB_ENV = BDB::db_env_create;
		3605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3606	| BDB::LOG_AUTOREMOVE, 1);
		3607	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3608	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3609
		3610	cf::sync_job {
		3611	eval {
		3612	BDB::db_env_open
		3613	$DB_ENV,
		3614	$BDBDIR,
		3615	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3616	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3617	0666;
		3618
		3619	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3620	};
		3621
		3622	cf::cleanup "db_env_open(db): $@" if $@;
		3623	};
		3624	}
		3625
		3626	$BDB_DEADLOCK_WATCHER = Event->timer (
2498	after => 0,	3627	after => 3,
2499	interval => 10,	3628	interval => 1,
		3629	hard => 1,
		3630	prio => 0,
		3631	data => WF_AUTOCANCEL,
2500	cb => sub {	3632	cb => sub {
2501	(Coro::unblock_sub {	3633	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2502	write_runtime	3634	},
2503	or warn "ERROR: unable to write runtime file: $!";	3635	);
		3636	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3637	after => 11,
		3638	interval => 60,
		3639	hard => 1,
		3640	prio => 0,
		3641	data => WF_AUTOCANCEL,
		3642	cb => sub {
		3643	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3644	},
		3645	);
		3646	$BDB_TRICKLE_WATCHER = Event->timer (
		3647	after => 5,
		3648	interval => 10,
		3649	hard => 1,
		3650	prio => 0,
		3651	data => WF_AUTOCANCEL,
		3652	cb => sub {
		3653	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3654	},
		3655	);
		3656	}
		3657
		3658	{
		3659	IO::AIO::min_parallel 8;
		3660
		3661	undef $Coro::AIO::WATCHER;
		3662	IO::AIO::max_poll_time $TICK * 0.1;
		3663	$AIO_POLL_WATCHER = Event->io (
		3664	reentrant => 0,
		3665	data => WF_AUTOCANCEL,
		3666	fd => IO::AIO::poll_fileno,
		3667	poll => 'r',
		3668	prio => 0,
		3669	cb => \&IO::AIO::poll_cb,
		3670	);
		3671	}
		3672
		3673	my $_log_backtrace;
		3674
		3675	sub _log_backtrace {
		3676	my ($msg, @addr) = @_;
		3677
		3678	$msg =~ s/\n//;
		3679
		3680	# limit the # of concurrent backtraces
		3681	if ($_log_backtrace < 2) {
		3682	++$_log_backtrace;
		3683	async {
		3684	$Coro::current->{desc} = "abt $msg";
		3685
		3686	my @bt = fork_call {
		3687	@addr = map { sprintf "%x", $_ } @addr;
		3688	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3689	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3690	or die "addr2line: $!";
		3691
		3692	my @funcs;
		3693	my @res = <$fh>;
		3694	chomp for @res;
		3695	while (@res) {
		3696	my ($func, $line) = splice @res, 0, 2, ();
		3697	push @funcs, "[$func] $line";
		3698	}
		3699
		3700	@funcs
		3701	};
		3702
		3703	LOG llevInfo, "[ABT] $msg\n";
		3704	LOG llevInfo, "[ABT] $_\n" for @bt;
		3705	--$_log_backtrace;
2504	})->();	3706	};
		3707	} else {
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] [suppressed]\n";
2505	},	3710	}
2506	);	3711	}
		3712
		3713	# load additional modules
		3714	use cf::pod;
2507		3715
2508	END { cf::emergency_save }	3716	END { cf::emergency_save }
2509		3717
2510	1	3718	1
2511		3719

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