ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.390 by root, Thu Oct 25 09:01:24 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
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		656
543	#############################################################################	657	#############################################################################
544		658
545	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
546		660
…		…
548	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")
549	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
550		664
551	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>
552	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
553	crossfire+).	667	Crossfire TRT).
554		668
555	=over 4	669	=over 4
556		670
557	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
558		672
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	787	our @CB_MAP = ();
674		788
675	my %attachment;	789	my %attachment;
676		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
677	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
679		799
680	use sort 'stable';	800	use sort 'stable';
681		801
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
716		836
717	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		841
722	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	843	my $pkg = shift @arg;
724		844
725	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
755	}	875	}
756		876
757	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
758	} else {	878	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	880	}
761		881
762	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
763	}	883	}
764		884
…		…
766	if (ref $_[0]) {	886	if (ref $_[0]) {
767	_object_attach @_;	887	_object_attach @_;
768	} else {	888	} else {
769	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
770	}	890	}
		891	_recalc_want;
771	};	892	};
772		893
773	# all those should be optimised	894	# all those should be optimised
774	sub cf::attachable::detach {	895	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
779	reattach ($obj);	900	reattach ($obj);
780	} else {	901	} else {
781	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
782	}	903	}
		904	_recalc_want;
783	};	905	};
784		906
785	sub cf::attachable::attached {	907	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
787		909
…		…
802	";	924	";
803	die if $@;	925	die if $@;
804	}	926	}
805		927
806	our $override;	928	our $override;
807	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?
808		930
809	sub override {	931	sub override {
810	$override = 1;	932	$override = 1;
811	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
812	}	934	}
813		935
814	sub do_invoke {	936	sub do_invoke {
815	my $event = shift;	937	my $event = shift;
816	my $callbacks = shift;	938	my $callbacks = shift;
817		939
818	@invoke_results = ();	940	@INVOKE_RESULTS = ();
819		941
820	local $override;	942	local $override;
821		943
822	for (@$callbacks) {	944	for (@$callbacks) {
823	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
840		962
841	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
842		964
843	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
844	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
845	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		968
847	=back	969	=back
848		970
849	=cut	971	=cut
850		972
851	#############################################################################	973	#############################################################################
852	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
853		1017
854	sub reattach {	1018	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1023
858	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
859		1025
860	@$registry = ();	1026	@$registry = ();
861		1027
…		…
902	sub object_freezer_save {	1068	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
904		1070
905	sync_job {	1071	sync_job {
906	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
909		1076
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1081	close $fh;
915		1082
916	if (@$objs) {	1083	if (@$objs) {
917	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) {
918	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1089	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
924	}	1091	}
925	} else {	1092	} else {
926	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
932	}	1099	}
933	} else {	1100	} else {
934	aio_unlink $filename;	1101	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
936	}	1103	}
937	}	1104	};
938	}	1105	}
939		1106
940	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
942		1109
…		…
954	or return;	1121	or return;
955		1122
956	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
958	or return;	1125	or return;
		1126
959	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
960	}	1129	}
961		1130
		1131	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
964	return ($data, $av);	1135	($data, $av)
965	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
966		1143
967	#############################################################################	1144	#############################################################################
968	# command handling &c	1145	# command handling &c
969		1146
970	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1161	}
985		1162
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1164
988	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
989		1170
990	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
991	called.	1172	called.
992		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
993	=cut	1185	=cut
994		1186
995	sub register_extcmd {	1187	sub register_extcmd {
996	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
997		1189
998	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
999	}	1197	}
1000		1198
1001	cf::player->attach (	1199	cf::player->attach (
1002	on_command => sub {	1200	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1210	cf::override;
1013	},	1211	},
1014	on_extcmd => sub {	1212	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
1016		1214
1017	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1216
1019	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
1025	} else {	1232	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1234	}
1028		1235
1029	cf::override;	1236	cf::override;
1030	},	1237	},
1031	);	1238	);
1032		1239
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1061	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1245	next unless -r $path;
1063	eval {	1246
1064	load_extension $ext;	1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
1065	1	1304	}
1066	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1067	}	1310	};
1068	}	1311	}
1069		1312
1070	#############################################################################	1313	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1314
1073	*cf::mapsupport::on_clean = sub {	1315	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1316
1086	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1087		1318
1088	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1089		1320
…		…
1095		1326
1096	=head3 cf::player	1327	=head3 cf::player
1097		1328
1098	=over 4	1329	=over 4
1099		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
1100	=item cf::player::find $login	1345	=item cf::player::find $login
1101		1346
1102	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1103		1348
1104	=cut	1349	=cut
1105		1350
1106	sub playerdir($) {	1351	sub playerdir($) {
1107	cf::localdir	1352	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1354	}
1113		1355
1114	sub path($) {	1356	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1358
1117	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1118	}	1360	}
1119		1361
1120	sub find_active($) {	1362	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1125		1367
1126	sub exists($) {	1368	sub exists($) {
1127	my ($login) = @_;	1369	my ($login) = @_;
1128		1370
1129	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1131	}	1373	}
1132		1374
1133	sub find($) {	1375	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1377	my $login = $_[0];
1136		1378
1137	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1138		1380
1139	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1143	}	1397	}
1144	}	1398	}
1145	}	1399	}
1146		1400
…		…
1156		1410
1157	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1159		1413
1160	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1161	Coro::cede;	1415	cf::cede_to_tick;
1162	}	1416	}
1163		1417
1164	sub new($) {	1418	sub new($) {
1165	my ($login) = @_;	1419	my ($login) = @_;
1166		1420
…		…
1172	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1173		1427
1174	$self	1428	$self
1175	}	1429	}
1176		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
1177	=item $pl->quit_character	1441	=item $pl->quit_character
1178		1442
1179	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1181		1445
1182	=cut	1446	=cut
1183		1447
1184	sub quit_character {	1448	sub quit_character {
1185	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1186		1452
1187	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1455
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
1200	IO::AIO::aio_rmtree $temp;	1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
1201	}	1487	}
1202		1488
1203	=item cf::player::list_logins	1489	=item cf::player::list_logins
1204		1490
1205	Returns am arrayref of all valid playernames in the system, can take a	1491	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1207		1493
1208	=cut	1494	=cut
1209		1495
1210	sub list_logins {	1496	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1498	or return [];
1213		1499
1214	my @logins;	1500	my @logins;
1215		1501
1216	for my $login (@$dirs) {	1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1220		1511
1221	utf8::decode $login;	1512	utf8::decode $login;
1222	push @logins, $login;	1513	push @logins, $login;
1223	}	1514	}
1224		1515
1225	\@logins	1516	\@logins
1226	}	1517	}
1227		1518
1228	=item $player->maps	1519	=item $player->maps
1229		1520
1230	Returns an arrayref of cf::path's of all maps that are private for this	1521	Returns an arrayref of map paths that are private for this
1231	player. May block.	1522	player. May block.
1232		1523
1233	=cut	1524	=cut
1234		1525
1235	sub maps($) {	1526	sub maps($) {
1236	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1530
1238	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1239	or return;	1532	or return;
1240		1533
1241	my @paths;	1534	my @paths;
…		…
1243	for (@$files) {	1536	for (@$files) {
1244	utf8::decode $_;	1537	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1539	next unless /^$PATH_SEP/o;
1247		1540
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1541	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1542	}
1250		1543
1251	\@paths	1544	\@paths
1252	}	1545	}
1253		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1598	=item $player->ext_reply ($msgid, @msg)
1255		1599
1256	Sends an ext reply to the player.	1600	Sends an ext reply to the player.
1257		1601
1258	=cut	1602	=cut
1259		1603
1260	sub ext_reply($$$%) {	1604	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1605	my ($self, $id, @msg) = @_;
1262		1606
1263	$msg{msgid} = $id;	1607	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1608	}
1267		1609
1268	package cf;	1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
		1637	my ($path) = @_;
		1638
		1639	my ($match, $specificity);
		1640
		1641	for my $region (list) {
		1642	if ($region->{match} && $path =~ $region->{match}) {
		1643	($match, $specificity) = ($region, $region->specificity)
		1644	if $region->specificity > $specificity;
		1645	}
		1646	}
		1647
		1648	$match
		1649	}
1269		1650
1270	=back	1651	=back
1271
1272		1652
1273	=head3 cf::map	1653	=head3 cf::map
1274		1654
1275	=over 4	1655	=over 4
1276		1656
…		…
1279	package cf::map;	1659	package cf::map;
1280		1660
1281	use Fcntl;	1661	use Fcntl;
1282	use Coro::AIO;	1662	use Coro::AIO;
1283		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1284	our $MAX_RESET = 3600;	1668	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1669	our $DEFAULT_RESET = 3000;
1286		1670
1287	sub generate_random_map {	1671	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1674	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1686	)
1305	}	1687	}
1306		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
		1814	}
		1815
1307	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1308	# all maps in C++...	1817	# all maps in C++...
1309	sub change_all_map_light {	1818	sub change_all_map_light {
1310	my ($change) = @_;	1819	my ($change) = @_;
1311		1820
1312	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1314	}	1823	}
1315		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1316	sub load_map_header($) {	1841	sub load_header_from($) {
1317	my ($path) = @_;	1842	my ($self, $path) = @_;
1318		1843
1319	utf8::encode $path;	1844	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1321	or return;	1846	or return;
1322		1847
1323	my $map = cf::map::new	1848	$self->_load_header ($f)
1324	or return;	1849	or return;
1325		1850
1326	# for better error messages only, will be overwritten later	1851	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1852	$f->resolve_delayed_derefs;
1328		1853
1329	$map->load_header ($path)	1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1330	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1331		1900
1332	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1333		1903
1334	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
		1905	unless $self->default_region;
		1906
		1907	1
1335	}	1908	}
1336		1909
1337	sub find;	1910	sub find;
1338	sub find {	1911	sub find {
1339	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1340		1913
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1347		1918
1348	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1350		1922
1351	# do it the slow way	1923	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1924	or return;
1365		1925
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1378		1927
1379	Coro::cede;	1928	$map->load_header
		1929	or return;
1380		1930
1381	if ($map->should_reset) {	1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1382	$map->reset;	1936	$map->reset;
1383	undef $guard;
1384	$map = find $path	1937	return find $path;
1385	or return;
1386	}	1938	}
1387		1939
1388	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1389	}	1941	}
1390	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1391		1946
1392	sub load {	1947	sub load {
1393	my ($self) = @_;	1948	my ($self) = @_;
1394		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1395	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1397		1956
		1957	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		1959
1400	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1401		1961
1402	$self->alloc;	1962	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1404	or return;	1970	or return;
1405		1971
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	1973	if delete $self->{load_original};
1408		1974
1409	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	1976	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	1979	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1414	}	1983	}
1415	}	1984	}
1416		1985
1417	Coro::cede;	1986	$f->resolve_delayed_derefs;
1418		1987
		1988	cf::cede_to_tick;
1419	# now do the right thing for maps	1989	# now do the right thing for maps
1420	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1432	$self->activate;	2002	$self->activate;
1433	}	2003	}
1434		2004
1435	Coro::cede;	2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
1436		2007
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
		2009	}
		2010
		2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
1438	}	2024	}
1439		2025
1440	# find and load all maps in the 3x3 area around a map	2026	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2027	sub load_neighbours {
1442	my ($map) = @_;	2028	my ($map) = @_;
1443		2029
1444	my @diag; # diagonal neighbours	2030	my @neigh; # diagonal neighbours
1445		2031
1446	for (0 .. 3) {	2032	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2033	my $neigh = $map->tile_path ($_)
1448	or next;	2034	or next;
1449	$neigh = find $neigh, $map	2035	$neigh = find $neigh, $map
1450	or next;	2036	or next;
1451	$neigh->load;	2037	$neigh->load;
1452		2038
		2039	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2042	}
1456		2043
1457	for (@diag) {	2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2046	my $neigh = find $path, $origin
1459	or next;	2047	or next;
1460	$neigh->load;	2048	$neigh->load;
1461	}	2049	}
1462	}	2050	}
1463		2051
…		…
1468	}	2056	}
1469		2057
1470	sub do_load_sync {	2058	sub do_load_sync {
1471	my ($map) = @_;	2059	my ($map) = @_;
1472		2060
		2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2062	if $Coro::current == $Coro::main;
		2063
1473	cf::sync_job { $map->load };	2064	cf::sync_job { $map->load };
1474	}	2065	}
1475		2066
1476	our %MAP_PREFETCH;	2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
1477	our $MAP_PREFETCHER = Coro::async {	2081	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2082	$Coro::current->{desc} = "map prefetcher";
		2083
1479	while (%MAP_PREFETCH) {	2084	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2085	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
1482	my $path = delete $MAP_PREFETCH{$key};	2090	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2091	}
1488	Coro::schedule;	2092	}
		2093	undef $MAP_PREFETCHER;
1489	}	2094	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2095	$MAP_PREFETCHER->prio (6);
1504		2096
1505	()	2097	()
1506	}	2098	}
1507		2099
1508	sub save {	2100	sub save {
1509	my ($self) = @_;	2101	my ($self) = @_;
1510		2102
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2104
1513	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1514		2106
1515	return unless $self->dirty;	2107	return unless $self->dirty;
1516		2108
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2111
1520	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1521		2113
1522	return if $self->{deny_save};	2114	return if $self->{deny_save};
1523		2115
1524	local $self->{last_access} = $self->last_access;#d#	2116	local $self->{last_access} = $self->last_access;#d#
1525		2117
1526	cf::async {	2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2120	$_->contr->save for $self->players;
1528	};	2121	};
1529		2122
1530	if ($uniq) {	2123	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2126	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2128	}
1536	}	2129	}
1537		2130
1538	sub swap_out {	2131	sub swap_out {
1539	my ($self) = @_;	2132	my ($self) = @_;
1540		2133
1541	# save first because save cedes	2134	# save first because save cedes
1542	$self->save;	2135	$self->save;
1543		2136
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2138
1546	return if $self->players;	2139	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2141	return if $self->{deny_save};
1549		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2147	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2148	}
1553		2149
1554	sub reset_at {	2150	sub reset_at {
1555	my ($self) = @_;	2151	my ($self) = @_;
1556		2152
1557	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1560		2155
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2158
…		…
1568	my ($self) = @_;	2163	my ($self) = @_;
1569		2164
1570	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1571	}	2166	}
1572		2167
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2168	sub reset {
1587	my ($self) = @_;	2169	my ($self) = @_;
1588		2170
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2172
1591	return if $self->players;	2173	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2174
1594	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1595		2186
1596	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1597		2188
		2189	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1599		2192
1600	$self->{path}->unlink_save;	2193	$self->unlink_save;
1601	$self->destroy;	2194	$self->destroy;
1602	}	2195	}
1603		2196
1604	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1605		2198
1606	sub nuke {	2199	sub nuke {
1607	my ($self) = @_;	2200	my ($self) = @_;
1608		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1612	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1613	}	2219	}
1614		2220
		2221	=item $maps = cf::map::tmp_maps
		2222
		2223	Returns an arrayref with all map paths of currently instantiated and saved
		2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
		2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
		2237	}
		2238
		2239	=item $maps = cf::map::random_maps
		2240
		2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
		2243
		2244	=cut
		2245
		2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
		2255	}
		2256
1615	=item cf::map::unique_maps	2257	=item cf::map::unique_maps
1616		2258
1617	Returns an arrayref of cf::path's of all shared maps that have	2259	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2260	instantiated unique items. May block.
1619		2261
1620	=cut	2262	=cut
1621		2263
1622	sub unique_maps() {	2264	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2265	[
1624	or return;	2266	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2267	utf8::decode $_;
1630	next if /\.pst$/;	2268	/\.map$/
1631	next unless /^$PATH_SEP/o;	2269	? normalise $_
1632		2270	: ()
1633	push @paths, new cf::path $_;	2271	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2272	]
1635
1636	\@paths
1637	}	2273	}
1638		2274
1639	package cf;	2275	package cf;
1640		2276
1641	=back	2277	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2295	map { $_, inv_recursive_ $_->inv } @_
1660	}	2296	}
1661		2297
1662	sub inv_recursive {	2298	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
1664	}	2328	}
1665		2329
1666	package cf;	2330	package cf;
1667		2331
1668	=back	2332	=back
…		…
1687		2351
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2353
1690	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1692	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1695	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1696	}	2379	}
1697		2380
1698	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1699		2382
1700	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1713		2396
1714	=item $player_object->enter_link	2397	=item $player_object->enter_link
1715		2398
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2400
1718	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1720		2403
		2404	Will never block.
		2405
1721	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1722		2407
1723	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2411	fails, to the emergency map position.
1727		2412
1728	Might block.	2413	Might block.
1729		2414
1730	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1731		2426
1732	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2428	my ($self) = @_;
1734		2429
1735	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1736		2431
1737	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2433
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1741		2436
1742	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2438	}
1744		2439
1745	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1747		2444
1748	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1749		2446
1750	unless ($map) {	2447	unless ($map) {
1751	# restore original map position	2448	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1768		2465
1769	$map->load;	2466	$map->load;
1770	$map->load_diag;	2467	$map->load_neighbours;
1771		2468
1772	return unless $self->contr->active;	2469	return unless $self->contr->active;
1773	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1775	}	2474	}
1776		2475
1777	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2477
1781	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1785	};	2482	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2483
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2484	=cut
		2485
		2486	our $GOTOGEN;
1812		2487
1813	sub cf::object::player::goto {	2488	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2490
1816	$path = new cf::path $path;	2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2493
1818	$self->enter_link;	2494	$self->enter_link;
1819		2495
1820	(async {	2496	(async {
1821	my $map = cf::map::find $path->as_string;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2498
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
1825	# if $map;	2521	if ($map) {
1826		2522	$map = $map->customise_for ($self);
		2523	$map = $check->($map) if $check && $map;
		2524	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1828		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1830	})->prio (1);	2542	})->prio (1);
1831	}	2543	}
1832		2544
1833	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1834		2546
…		…
1836		2548
1837	sub parse_random_map_params {	2549	sub parse_random_map_params {
1838	my ($spec) = @_;	2550	my ($spec) = @_;
1839		2551
1840	my $rmp = { # defaults	2552	my $rmp = { # defaults
1841	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1843	};	2557	};
1844		2558
1845	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1847		2561
…		…
1851	$rmp	2565	$rmp
1852	}	2566	}
1853		2567
1854	sub prepare_random_map {	2568	sub prepare_random_map {
1855	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2572
1857	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2575	# that depends on the exit object
1860		2576
1861	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1862		2578
1863	if ($exit->map) {	2579	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1868	}	2584	}
1869		2585
1870	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1871		2587
1872	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1874		2591
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1877		2596
1878	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2598	$exit->msg (undef);
1880	}	2599	}
1881	}	2600	}
…		…
1883	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1885		2604
1886	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1887		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1888	$self->enter_link;	2618	$self->enter_link;
1889		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1890	(async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
1891	$self->deactivate_recursive; # just to be sure	2627	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2628	unless (eval {
1893	prepare_random_map $exit	2629	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2630
1899	1;	2631	1;
1900	}) {	2632	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2635	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2637
1906	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2639	$self->leave_link;
1908	}	2640	}
1909	})->prio (1);	2641	})->prio (1);
…		…
1922		2654
1923	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1925		2657
1926	utf8::encode $text;	2658	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2660	}
1929		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/book" => {
		2685	id => "infobox",
		2686	title => "Book",
		2687	reply => undef,
		2688	tooltip => "The contents of a note or book",
		2689	},
		2690	"c/lookat" => {
		2691	id => "infobox",
		2692	title => "Look",
		2693	reply => undef,
		2694	tooltip => "What you saw there",
		2695	},
		2696	"c/who" => {
		2697	id => "infobox",
		2698	title => "Players",
		2699	reply => undef,
		2700	tooltip => "Shows players who are currently online",
		2701	},
		2702	"c/body" => {
		2703	id => "infobox",
		2704	title => "Body Parts",
		2705	reply => undef,
		2706	tooltip => "Shows which body parts you posess and are available",
		2707	},
		2708	"c/uptime" => {
		2709	id => "infobox",
		2710	title => "Uptime",
		2711	reply => undef,
		2712	tooltip => "How long the server has been running sicne last restart",
		2713	},
		2714	"c/mapinfo" => {
		2715	id => "infobox",
		2716	title => "Map Info",
		2717	reply => undef,
		2718	tooltip => "Information related to the maps",
		2719	},
		2720	);
		2721
		2722	sub cf::client::send_msg {
		2723	my ($self, $channel, $msg, $color, @extra) = @_;
		2724
		2725	$msg = $self->pl->expand_cfpod ($msg);
		2726
		2727	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2728
		2729	# check predefined channels, for the benefit of C
		2730	if ($CHANNEL{$channel}) {
		2731	$channel = $CHANNEL{$channel};
		2732
		2733	$self->ext_msg (channel_info => $channel)
		2734	if $self->can_msg;
		2735
		2736	$channel = $channel->{id};
		2737
		2738	} elsif (ref $channel) {
		2739	# send meta info to client, if not yet sent
		2740	unless (exists $self->{channel}{$channel->{id}}) {
		2741	$self->{channel}{$channel->{id}} = $channel;
		2742	$self->ext_msg (channel_info => $channel)
		2743	if $self->can_msg;
		2744	}
		2745
		2746	$channel = $channel->{id};
		2747	}
		2748
		2749	return unless @extra || length $msg;
		2750
		2751	if ($self->can_msg) {
		2752	# default colour, mask it out
		2753	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2754	if $color & cf::NDI_DEF;
		2755
		2756	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2757	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2758	} else {
		2759	if ($color >= 0) {
		2760	# replace some tags by gcfclient-compatible ones
		2761	for ($msg) {
		2762	1 while
		2763	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2764	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2765	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2766	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2767	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2768	}
		2769
		2770	$color &= cf::NDI_COLOR_MASK;
		2771
		2772	utf8::encode $msg;
		2773
		2774	if (0 && $msg =~ /\[/) {
		2775	# COMMAND/INFO
		2776	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2777	} else {
		2778	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2779	$self->send_packet ("drawinfo $color $msg")
		2780	}
		2781	}
		2782	}
		2783	}
		2784
		2785	=item $client->ext_msg ($type, @msg)
		2786
		2787	Sends an ext event to the client.
		2788
		2789	=cut
		2790
		2791	sub cf::client::ext_msg($$@) {
		2792	my ($self, $type, @msg) = @_;
		2793
		2794	if ($self->extcmd == 2) {
		2795	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2796	} elsif ($self->extcmd == 1) { # TODO: remove
		2797	push @msg, msgtype => "event_$type";
		2798	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2799	}
		2800	}
		2801
		2802	=item $client->ext_reply ($msgid, @msg)
		2803
		2804	Sends an ext reply to the client.
		2805
		2806	=cut
		2807
		2808	sub cf::client::ext_reply($$@) {
		2809	my ($self, $id, @msg) = @_;
		2810
		2811	if ($self->extcmd == 2) {
		2812	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2813	} elsif ($self->extcmd == 1) {
		2814	#TODO: version 1, remove
		2815	unshift @msg, msgtype => "reply", msgid => $id;
		2816	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2817	}
		2818	}
1930		2819
1931	=item $success = $client->query ($flags, "text", \&cb)	2820	=item $success = $client->query ($flags, "text", \&cb)
1932		2821
1933	Queues a query to the client, calling the given callback with	2822	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2823	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2824	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2825
1937	Queries can fail, so check the return code. Or don't, as queries will become	2826	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2827	become reliable at some point in the future.
1939		2828
1940	=cut	2829	=cut
1941		2830
1942	sub cf::client::query {	2831	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2832	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2840	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2841	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2842
1954	$self->send_packet ($self->{query_queue}[0][0])	2843	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2844	if @{ $self->{query_queue} } == 1;
		2845
		2846	1
1956	}	2847	}
1957		2848
1958	cf::client->attach (	2849	cf::client->attach (
		2850	on_connect => sub {
		2851	my ($ns) = @_;
		2852
		2853	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2854	},
1959	on_reply => sub {	2855	on_reply => sub {
1960	my ($ns, $msg) = @_;	2856	my ($ns, $msg) = @_;
1961		2857
1962	# this weird shuffling is so that direct followup queries	2858	# this weird shuffling is so that direct followup queries
1963	# get handled first	2859	# get handled first
1964	my $queue = delete $ns->{query_queue}	2860	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2861	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2862
1967	(shift @$queue)->[1]->($msg);	2863	(shift @$queue)->[1]->($msg);
		2864	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2865
1969	push @{ $ns->{query_queue} }, @$queue;	2866	push @{ $ns->{query_queue} }, @$queue;
1970		2867
1971	if (@{ $ns->{query_queue} } == @$queue) {	2868	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2869	if (@$queue) {
…		…
1974	} else {	2871	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2872	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2873	}
1977	}	2874	}
1978	},	2875	},
		2876	on_exticmd => sub {
		2877	my ($ns, $buf) = @_;
		2878
		2879	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2880
		2881	if (ref $msg) {
		2882	my ($type, $reply, @payload) =
		2883	"ARRAY" eq ref $msg
		2884	? @$msg
		2885	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2886
		2887	my @reply;
		2888
		2889	if (my $cb = $EXTICMD{$type}) {
		2890	@reply = $cb->($ns, @payload);
		2891	}
		2892
		2893	$ns->ext_reply ($reply, @reply)
		2894	if $reply;
		2895
		2896	} else {
		2897	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2898	}
		2899
		2900	cf::override;
		2901	},
1979	);	2902	);
1980		2903
1981	=item $client->async (\&cb)	2904	=item $client->async (\&cb)
1982		2905
1983	Create a new coroutine, running the specified callback. The coroutine will	2906	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	2947	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	2948	our $safe_hole = new Safe::Hole;
2026		2949
2027	$SIG{FPE} = 'IGNORE';	2950	$SIG{FPE} = 'IGNORE';
2028		2951
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2952	$safe->permit_only (Opcode::opset qw(
		2953	:base_core :base_mem :base_orig :base_math
		2954	grepstart grepwhile mapstart mapwhile
		2955	sort time
		2956	));
2030		2957
2031	# here we export the classes and methods available to script code	2958	# here we export the classes and methods available to script code
2032		2959
2033	=pod	2960	=pod
2034		2961
2035	The following fucntions and emthods are available within a safe environment:	2962	The following functions and methods are available within a safe environment:
2036		2963
2037	cf::object contr pay_amount pay_player map	2964	cf::object
		2965	contr pay_amount pay_player map x y force_find force_add destroy
		2966	insert remove name archname title slaying race decrease_ob_nr
		2967
2038	cf::object::player player	2968	cf::object::player
2039	cf::player peaceful	2969	player
2040	cf::map trigger	2970
		2971	cf::player
		2972	peaceful
		2973
		2974	cf::map
		2975	trigger
2041		2976
2042	=cut	2977	=cut
2043		2978
2044	for (	2979	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	2980	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2981	insert remove inv name archname title slaying race
		2982	decrease_ob_nr destroy)],
2046	["cf::object::player" => qw(player)],	2983	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	2984	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	2985	["cf::map" => qw(trigger)],
2049	) {	2986	) {
2050	no strict 'refs';	2987	no strict 'refs';
…		…
2121	=back	3058	=back
2122		3059
2123	=cut	3060	=cut
2124		3061
2125	#############################################################################	3062	#############################################################################
		3063	# the server's init and main functions
2126		3064
2127	=head2 EXTENSION DATABASE SUPPORT	3065	sub load_facedata($) {
		3066	my ($path) = @_;
2128		3067
2129	Crossfire maintains a very simple database for extension use. It can	3068	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3069	# for this (global event?)
2131	excludes objects.	3070	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3071
2133	The parameter C<$family> should best start with the name of the extension	3072	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3073
2136	=over 4	3074	warn "loading facedata from $path\n";
2137		3075
2138	=item $hashref = cf::db_get $family	3076	my $facedata;
		3077	0 < aio_load $path, $facedata
		3078	or die "$path: $!";
2139		3079
2140	Return a hashref for use by the extension C<$family>, which can be	3080	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3081
2144	=item $value = cf::db_get $family => $key	3082	$facedata->{version} == 2
		3083	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3084
2146	Returns a single value from the database	3085	# patch in the exptable
2147		3086	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3087	type => FT_RSRC,
2149		3088	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3089	};
		3090	cf::cede_to_tick;
2199		3091
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3092	{
		3093	my $faces = $facedata->{faceinfo};
2204		3094
2205	sub db_get($;$) {	3095	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3096	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}	3097	cf::face::set_visibility $idx, $info->{visibility};
2208	: ($DB->{$_[0]} ||= { })	3098	cf::face::set_magicmap $idx, $info->{magicmap};
2209	}	3099	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3100	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2210		3101
2211	sub db_put($$;$) {	3102	cf::cede_to_tick;
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219
2220	cf::global->attach (
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3103	}
2225	);
2226	}
2227		3104
2228	#############################################################################	3105	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3106	next unless $info->{smooth};
		3107	my $idx = cf::face::find $face
		3108	or next;
		3109	if (my $smooth = cf::face::find $info->{smooth}) {
		3110	cf::face::set_smooth $idx, $smooth;
		3111	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3112	} else {
		3113	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3114	}
2230		3115
2231	sub cfg_load {	3116	cf::cede_to_tick;
		3117	}
		3118	}
		3119
		3120	{
		3121	my $anims = $facedata->{animinfo};
		3122
		3123	while (my ($anim, $info) = each %$anims) {
		3124	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3125	cf::cede_to_tick;
		3126	}
		3127
		3128	cf::anim::invalidate_all; # d'oh
		3129	}
		3130
		3131	{
		3132	# TODO: for gcfclient pleasure, we should give resources
		3133	# that gcfclient doesn't grok a >10000 face index.
		3134	my $res = $facedata->{resource};
		3135
		3136	my $soundconf = delete $res->{"res/sound.conf"};
		3137
		3138	while (my ($name, $info) = each %$res) {
		3139	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3140	my $data;
		3141
		3142	if ($info->{type} & 1) {
		3143	# prepend meta info
		3144
		3145	my $meta = $enc->encode ({
		3146	name => $name,
		3147	%{ $info->{meta} || {} },
		3148	});
		3149
		3150	$data = pack "(w/a*)*", $meta, $info->{data};
		3151	} else {
		3152	$data = $info->{data};
		3153	}
		3154
		3155	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3156	cf::face::set_type $idx, $info->{type};
		3157
		3158	cf::cede_to_tick;
		3159	}
		3160
		3161	if ($soundconf) {
		3162	$soundconf = $enc->decode (delete $soundconf->{data});
		3163
		3164	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3165	my $sound = $soundconf->{compat}[$_]
		3166	or next;
		3167
		3168	my $face = cf::face::find "sound/$sound->[1]";
		3169	cf::sound::set $sound->[0] => $face;
		3170	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3171	}
		3172
		3173	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3174	my $face = cf::face::find "sound/$v";
		3175	cf::sound::set $k => $face;
		3176	}
		3177	}
		3178	}
		3179
		3180	1
		3181	}
		3182
		3183	register_exticmd fx_want => sub {
		3184	my ($ns, $want) = @_;
		3185
		3186	while (my ($k, $v) = each %$want) {
		3187	$ns->fx_want ($k, $v);
		3188	}
		3189	};
		3190
		3191	sub reload_regions {
		3192	# HACK to clear player env face cache, we need some signal framework
		3193	# for this (global event?)
		3194	%ext::player_env::MUSIC_FACE_CACHE = ();
		3195
		3196	load_resource_file "$MAPDIR/regions"
		3197	or die "unable to load regions file\n";
		3198
		3199	for (cf::region::list) {
		3200	$_->{match} = qr/$_->{match}/
		3201	if exists $_->{match};
		3202	}
		3203	}
		3204
		3205	sub reload_facedata {
		3206	load_facedata "$DATADIR/facedata"
		3207	or die "unable to load facedata\n";
		3208	}
		3209
		3210	sub reload_archetypes {
		3211	load_resource_file "$DATADIR/archetypes"
		3212	or die "unable to load archetypes\n";
		3213	#d# NEED to laod twice to resolve forward references
		3214	# this really needs to be done in an extra post-pass
		3215	# (which needs to be synchronous, so solve it differently)
		3216	load_resource_file "$DATADIR/archetypes"
		3217	or die "unable to load archetypes\n";
		3218	}
		3219
		3220	sub reload_treasures {
		3221	load_resource_file "$DATADIR/treasures"
		3222	or die "unable to load treasurelists\n";
		3223	}
		3224
		3225	sub reload_resources {
		3226	warn "reloading resource files...\n";
		3227
		3228	reload_regions;
		3229	reload_facedata;
		3230	#reload_archetypes;#d#
		3231	reload_archetypes;
		3232	reload_treasures;
		3233
		3234	warn "finished reloading resource files\n";
		3235	}
		3236
		3237	sub init {
		3238	reload_resources;
		3239	}
		3240
		3241	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3242	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3243	or return;
2234		3244
2235	local $/;	3245	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3246	*CFG = YAML::Syck::Load <$fh>;
2237		3247
…		…
2251		3261
2252	sub main {	3262	sub main {
2253	# we must not ever block the main coroutine	3263	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3264	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3265	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3266	(async {
		3267	$Coro::current->{desc} = "IDLE BUG HANDLER";
2256	async { Event::one_event };	3268	Event::one_event;
		3269	})->prio (Coro::PRIO_MAX);
2257	};	3270	};
2258		3271
2259	cfg_load;	3272	reload_config;
2260	db_load;	3273	db_init;
2261	load_extensions;	3274	load_extensions;
		3275
		3276	$TICK_WATCHER->start;
2262	Event::loop;	3277	Event::loop;
2263	}	3278	}
2264		3279
2265	#############################################################################	3280	#############################################################################
2266	# initialisation and cleanup	3281	# initialisation and cleanup
2267		3282
2268	# install some emergency cleanup handlers	3283	# install some emergency cleanup handlers
2269	BEGIN {	3284	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	3285	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3286	Event->signal (
		3287	reentrant => 0,
2272	data => WF_AUTOCANCEL,	3288	data => WF_AUTOCANCEL,
2273	signal => $signal,	3289	signal => $signal,
		3290	prio => 0,
2274	cb => sub {	3291	cb => sub {
2275	cf::cleanup "SIG$signal";	3292	cf::cleanup "SIG$signal";
2276	},	3293	},
2277	);	3294	);
2278	}	3295	}
2279	}	3296	}
2280		3297
		3298	sub write_runtime {
		3299	my $runtime = "$LOCALDIR/runtime";
		3300
		3301	# first touch the runtime file to show we are still running:
		3302	# the fsync below can take a very very long time.
		3303
		3304	IO::AIO::aio_utime $runtime, undef, undef;
		3305
		3306	my $guard = cf::lock_acquire "write_runtime";
		3307
		3308	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3309	or return;
		3310
		3311	my $value = $cf::RUNTIME + 90 + 10;
		3312	# 10 is the runtime save interval, for a monotonic clock
		3313	# 60 allows for the watchdog to kill the server.
		3314
		3315	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3316	and return;
		3317
		3318	# always fsync - this file is important
		3319	aio_fsync $fh
		3320	and return;
		3321
		3322	# touch it again to show we are up-to-date
		3323	aio_utime $fh, undef, undef;
		3324
		3325	close $fh
		3326	or return;
		3327
		3328	aio_rename "$runtime~", $runtime
		3329	and return;
		3330
		3331	warn "runtime file written.\n";
		3332
		3333	1
		3334	}
		3335
2281	sub emergency_save() {	3336	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3337	my $freeze_guard = cf::freeze_mainloop;
2283		3338
2284	warn "enter emergency perl save\n";	3339	warn "enter emergency perl save\n";
2285		3340
2286	cf::sync_job {	3341	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3342	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3343	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3344	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3345	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3346	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3347	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3348	$pl->valid or next;
		3349	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3350	$pl->save;
2295	}	3351	}
2296	warn "end emergency player save\n";	3352	warn "end emergency player save\n";
2297		3353
2298	warn "begin emergency map save\n";	3354	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3356	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3357	$map->valid or next;
2302	$map->save;	3358	$map->save;
2303	}	3359	}
2304	warn "end emergency map save\n";	3360	warn "end emergency map save\n";
		3361
		3362	warn "begin emergency database checkpoint\n";
		3363	BDB::db_env_txn_checkpoint $DB_ENV;
		3364	warn "end emergency database checkpoint\n";
2305	};	3365	};
2306		3366
2307	warn "leave emergency perl save\n";	3367	warn "leave emergency perl save\n";
2308	}	3368	}
2309		3369
		3370	sub post_cleanup {
		3371	my ($make_core) = @_;
		3372
		3373	warn Carp::longmess "post_cleanup backtrace"
		3374	if $make_core;
		3375	}
		3376
2310	sub reload() {	3377	sub do_reload_perl() {
2311	# can/must only be called in main	3378	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3379	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3380	warn "can only reload from main coroutine";
2314	return;	3381	return;
2315	}	3382	}
2316		3383
2317	warn "reloading...";	3384	warn "reloading...";
2318		3385
2319	warn "freezing server";	3386	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3387
		3388	cf::sync_job {
		3389	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3390	cf::emergency_save;
		3391	cf::write_runtime; # external watchdog should not bark
2322		3392
2323	warn "sync database to disk";	3393	warn "syncing database to disk";
2324	cf::db_sync;	3394	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3395
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3396	# if anything goes wrong in here, we should simply crash as we already saved
2329		3397
2330	warn "cancel all watchers";	3398	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	3399	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3400	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	3401	}
2334		3402
		3403	warn "flushing outstanding aio requests";
		3404	for (;;) {
		3405	BDB::flush;
		3406	IO::AIO::flush;
		3407	Coro::cede_notself;
		3408	last unless IO::AIO::nreqs || BDB::nreqs;
		3409	warn "iterate...";
		3410	}
		3411
		3412	++$RELOAD;
		3413
2335	warn "cancel all extension coros";	3414	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3415	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3416	%EXT_CORO = ();
2338		3417
2339	warn "remove commands";	3418	warn "removing commands";
2340	%COMMAND = ();	3419	%COMMAND = ();
2341		3420
2342	warn "remove ext commands";	3421	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3422	%EXTCMD = ();
		3423	%EXTICMD = ();
2344		3424
2345	warn "unload/nuke all extensions";	3425	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3426	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3427	warn "... unloading $pkg";
2348		3428
2349	if (my $cb = $pkg->can ("unload")) {	3429	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3430	eval {
…		…
2355		3435
2356	warn "... nuking $pkg";	3436	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3437	Symbol::delete_package $pkg;
2358	}	3438	}
2359		3439
2360	warn "unload all perl modules loaded from $LIBDIR";	3440	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3441	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3442	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3443
2364	warn "removing <$k>";	3444	warn "... unloading $k";
2365	delete $INC{$k};	3445	delete $INC{$k};
2366		3446
2367	$k =~ s/\.pm$//;	3447	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3448	$k =~ s/\//::/g;
2369		3449
…		…
2372	}	3452	}
2373		3453
2374	Symbol::delete_package $k;	3454	Symbol::delete_package $k;
2375	}	3455	}
2376		3456
2377	warn "get rid of safe::, as good as possible";	3457	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3458	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3459	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3460
2381	warn "unload cf.pm \"a bit\"";	3461	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3462	delete $INC{"cf.pm"};
		3463	delete $INC{"cf/pod.pm"};
2383		3464
2384	# don't, removes xs symbols, too,	3465	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3466	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3467	#Symbol::delete_package __PACKAGE__;
2387		3468
		3469	warn "unload completed, starting to reload now";
		3470
2388	warn "reloading cf.pm";	3471	warn "reloading cf.pm";
2389	require cf;	3472	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3473	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3474
2392	warn "load config and database again";	3475	warn "loading config and database again";
2393	cf::cfg_load;	3476	cf::reload_config;
2394	cf::db_load;
2395		3477
2396	warn "load extensions";	3478	warn "loading extensions";
2397	cf::load_extensions;	3479	cf::load_extensions;
2398		3480
2399	warn "reattach attachments to objects/players";	3481	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3482	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3483	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3484	reattach $_ for values %MAP;
2403	};	3485	warn "reattaching attachments to players";
		3486	reattach $_ for values %PLAYER;
2404		3487
2405	if ($@) {	3488	warn "leaving sync_job";
		3489
		3490	1
		3491	} or do {
2406	warn $@;	3492	warn $@;
2407	warn "error while reloading, exiting.";	3493	warn "error while reloading, exiting.";
2408	exit 1;	3494	exit 1;
2409	}	3495	};
2410		3496
2411	warn "reloaded";	3497	warn "reloaded";
2412	};	3498	};
2413		3499
2414	#############################################################################	3500	our $RELOAD_WATCHER; # used only during reload
2415		3501
2416	unless ($LINK_MAP) {	3502	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3503	# doing reload synchronously and two reloads happen back-to-back,
		3504	# coro crashes during coro_state_free->destroy here.
2418		3505
2419	$LINK_MAP->width (41);	3506	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	3507	reentrant => 0,
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,	3508	after => 0,
		3509	data => WF_AUTOCANCEL,
2429	cb => sub {	3510	cb => sub {
2430	$_[0]->w->cancel;	3511	do_reload_perl;
2431		3512	undef $RELOAD_WATCHER;
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});	3513	},
2450		3514	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3515	}
2456		3516
2457	register_command "reload" => sub {	3517	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3518	my ($who, $arg) = @_;
2459		3519
2460	if ($who->flag (FLAG_WIZ)) {	3520	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3521	$who->message ("reloading server.");
		3522	async {
		3523	$Coro::current->{desc} = "perl_reload";
		3524	reload_perl;
		3525	};
2464	}	3526	}
2465	};	3527	};
2466		3528
2467	unshift @INC, $LIBDIR;	3529	unshift @INC, $LIBDIR;
		3530
		3531	my $bug_warning = 0;
		3532
		3533	our @WAIT_FOR_TICK;
		3534	our @WAIT_FOR_TICK_BEGIN;
		3535
		3536	sub wait_for_tick {
		3537	return unless $TICK_WATCHER->is_active;
		3538	return if $Coro::current == $Coro::main;
		3539
		3540	my $signal = new Coro::Signal;
		3541	push @WAIT_FOR_TICK, $signal;
		3542	$signal->wait;
		3543	}
		3544
		3545	sub wait_for_tick_begin {
		3546	return unless $TICK_WATCHER->is_active;
		3547	return if $Coro::current == $Coro::main;
		3548
		3549	my $signal = new Coro::Signal;
		3550	push @WAIT_FOR_TICK_BEGIN, $signal;
		3551	$signal->wait;
		3552	}
2468		3553
2469	$TICK_WATCHER = Event->timer (	3554	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	3555	reentrant => 0,
		3556	parked => 1,
2471	prio => 0,	3557	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3558	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	3559	data => WF_AUTOCANCEL,
2474	cb => sub {	3560	cb => sub {
		3561	if ($Coro::current != $Coro::main) {
		3562	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3563	unless ++$bug_warning > 10;
		3564	return;
		3565	}
		3566
2475	$NOW = Event::time;	3567	$NOW = $tick_start = Event::time;
2476		3568
2477	cf::server_tick; # one server iteration	3569	cf::server_tick; # one server iteration
		3570
2478	$RUNTIME += $TICK;	3571	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3572	$NEXT_TICK += $TICK;
2480		3573
2481	$WAIT_FOR_TICK->broadcast;	3574	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3575	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3576	Coro::async_pool {
		3577	$Coro::current->{desc} = "runtime saver";
		3578	write_runtime
		3579	or warn "ERROR: unable to write runtime file: $!";
		3580	};
		3581	}
		3582
		3583	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3584	$sig->send;
		3585	}
		3586	while (my $sig = shift @WAIT_FOR_TICK) {
		3587	$sig->send;
		3588	}
		3589
		3590	$NOW = Event::time;
2483		3591
2484	# if we are delayed by four ticks or more, skip them all	3592	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3593	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		3594
2487	$TICK_WATCHER->at ($NEXT_TICK);	3595	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	3596	$TICK_WATCHER->start;
		3597
		3598	$LOAD = ($NOW - $tick_start) / $TICK;
		3599	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3600
		3601	_post_tick;
2489	},	3602	},
2490	);	3603	);
2491		3604
		3605	{
		3606	BDB::min_parallel 8;
2492	IO::AIO::max_poll_time $TICK * 0.2;	3607	BDB::max_poll_time $TICK * 0.1;
2493		3608	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	3609	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	3610	fd => BDB::poll_fileno,
2496	poll => 'r',	3611	poll => 'r',
2497	prio => 5,	3612	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	3613	data => WF_AUTOCANCEL,
		3614	cb => \&BDB::poll_cb,
		3615	);
		3616
		3617	BDB::set_sync_prepare {
		3618	my $status;
		3619	my $current = $Coro::current;
		3620	(
		3621	sub {
		3622	$status = $!;
		3623	$current->ready; undef $current;
		3624	},
		3625	sub {
		3626	Coro::schedule while defined $current;
		3627	$! = $status;
		3628	},
		3629	)
		3630	};
		3631
		3632	unless ($DB_ENV) {
		3633	$DB_ENV = BDB::db_env_create;
		3634	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3635	| BDB::LOG_AUTOREMOVE, 1);
		3636	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3637	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3638
		3639	cf::sync_job {
		3640	eval {
		3641	BDB::db_env_open
		3642	$DB_ENV,
		3643	$BDBDIR,
		3644	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3645	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3646	0666;
		3647
		3648	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3649	};
		3650
		3651	cf::cleanup "db_env_open(db): $@" if $@;
		3652	};
		3653	}
		3654
		3655	$BDB_DEADLOCK_WATCHER = Event->timer (
2504	after => 0,	3656	after => 3,
2505	interval => 10,	3657	interval => 1,
		3658	hard => 1,
		3659	prio => 0,
		3660	data => WF_AUTOCANCEL,
2506	cb => sub {	3661	cb => sub {
2507	(Coro::unblock_sub {	3662	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2508	write_runtime	3663	},
2509	or warn "ERROR: unable to write runtime file: $!";	3664	);
		3665	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3666	after => 11,
		3667	interval => 60,
		3668	hard => 1,
		3669	prio => 0,
		3670	data => WF_AUTOCANCEL,
		3671	cb => sub {
		3672	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3673	},
		3674	);
		3675	$BDB_TRICKLE_WATCHER = Event->timer (
		3676	after => 5,
		3677	interval => 10,
		3678	hard => 1,
		3679	prio => 0,
		3680	data => WF_AUTOCANCEL,
		3681	cb => sub {
		3682	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3683	},
		3684	);
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = Event->io (
		3693	reentrant => 0,
		3694	data => WF_AUTOCANCEL,
		3695	fd => IO::AIO::poll_fileno,
		3696	poll => 'r',
		3697	prio => 0,
		3698	cb => \&IO::AIO::poll_cb,
		3699	);
		3700	}
		3701
		3702	my $_log_backtrace;
		3703
		3704	sub _log_backtrace {
		3705	my ($msg, @addr) = @_;
		3706
		3707	$msg =~ s/\n//;
		3708
		3709	# limit the # of concurrent backtraces
		3710	if ($_log_backtrace < 2) {
		3711	++$_log_backtrace;
		3712	async {
		3713	$Coro::current->{desc} = "abt $msg";
		3714
		3715	my @bt = fork_call {
		3716	@addr = map { sprintf "%x", $_ } @addr;
		3717	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3718	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3719	or die "addr2line: $!";
		3720
		3721	my @funcs;
		3722	my @res = <$fh>;
		3723	chomp for @res;
		3724	while (@res) {
		3725	my ($func, $line) = splice @res, 0, 2, ();
		3726	push @funcs, "[$func] $line";
		3727	}
		3728
		3729	@funcs
		3730	};
		3731
		3732	LOG llevInfo, "[ABT] $msg\n";
		3733	LOG llevInfo, "[ABT] $_\n" for @bt;
		3734	--$_log_backtrace;
2510	})->();	3735	};
		3736	} else {
		3737	LOG llevInfo, "[ABT] $msg\n";
		3738	LOG llevInfo, "[ABT] [suppressed]\n";
2511	},	3739	}
2512	);	3740	}
		3741
		3742	# load additional modules
		3743	use cf::pod;
2513		3744
2514	END { cf::emergency_save }	3745	END { cf::emergency_save }
2515		3746
2516	1	3747	1
2517		3748

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines