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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.183 by root, Fri Jan 19 19:42:37 2007 UTC vs.
Revision 1.369 by root, Thu Sep 13 08:35:25 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.4 ();	15	use Coro 3.64 ();
		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;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
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;
49	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	80	our $NEXT_TICK;
52	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_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
53		88
54	our %CFG;	89	our %CFG;
55		90
56	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	92	our $RUNTIME;
58		93
59	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		97
67	# used to convert map paths into valid unix filenames by replacing / by ∕	98	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
		104
70	binmode STDOUT;	105	binmode STDOUT;
71	binmode STDERR;	106	binmode STDERR;
72		107
73	# read virtual server time, if available	108	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
78	}	113	}
79		114
80	mkdir cf::localdir;	115	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		117
86	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
87		121
88	#############################################################################	122	#############################################################################
89		123
90	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
91		125
…		…
98	=item $cf::RUNTIME	132	=item $cf::RUNTIME
99		133
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	135	every server tick.
102		136
103	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		140
105	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
107		145
108	=item $cf::NOW	146	=item $cf::NOW
109		147
110	The time of the last (current) server tick.	148	The time of the last (current) server tick.
111		149
112	=item $cf::TICK	150	=item $cf::TICK
113		151
114	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
115		163
116	=item %cf::CFG	164	=item %cf::CFG
117		165
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	167	from wherever your confdir points to.
120		168
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		170
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	172	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
127		180
128	=back	181	=back
129		182
130	=cut	183	=cut
131		184
132	BEGIN {	185	BEGIN {
133	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	187	my $msg = join "", @_;
135	utf8::encode $msg;
136		188
137	$msg .= "\n"	189	$msg .= "\n"
138	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
139		193
140	LOG llevError, $msg;	194	LOG llevError, $msg;
141	};	195	};
142	}	196	}
143		197
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		205
151	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	207	# within the Safe compartment.
153	for my $pkg (qw(	208	for my $pkg (qw(
154	cf::global cf::attachable	209	cf::global cf::attachable
…		…
162	}	217	}
163		218
164	$Event::DIED = sub {	219	$Event::DIED = sub {
165	warn "error in event callback: @_";	220	warn "error in event callback: @_";
166	};	221	};
		222
		223	#############################################################################
167		224
168	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
169		226
170	=over 4	227	=over 4
171		228
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	248	$d
192	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
193	}	250	}
194		251
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
198		253
199	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
200		255
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
209		257
210	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
211		259
212	=cut	260	=cut
213		261
214	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
216	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
218		266
219	=item cf::lock_wait $string	267	=item cf::lock_wait $string
220		268
221	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
222		270
…		…
225	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
228	returned.	276	returned.
229		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
230	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
232		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
233	=cut	288	=cut
234		289
235	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
236		292
237	sub lock_wait($) {	293	sub lock_wait($) {
238	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
239		300
240	# wait for lock, if any	301	# wait for lock, if any
241	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	304	Coro::schedule;
…		…
249		310
250	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
251	lock_wait $key;	312	lock_wait $key;
252		313
253	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
254		316
255	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
258	}	321	}
259	}	322	}
260		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
261	sub freeze_mainloop {	330	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
263		332
264	my $guard = Coro::guard {	333	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	334	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	335	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
270	$guard	337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
271	}	394	}
272		395
273	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
274		397
275	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		403
281	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
282		405
283	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
284		407
285	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
288		412
289	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
292	fast or be very important.	416	fast or be very important.
…		…
295		419
296	sub sync_job(&) {	420	sub sync_job(&) {
297	my ($job) = @_;	421	my ($job) = @_;
298		422
299	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
300	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
302		428
303	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
315		441
316	while ($busy) {	442	while ($busy) {
317	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
318	}	444	}
319		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
320	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
321	} else {	454	} else {
322	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
323		456
324	$job->()	457	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
344		477
345	$coro	478	$coro
346	}	479	}
347		480
348	sub write_runtime {	481	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		482
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
352	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
353		487
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		489
358	aio_fsync $fh	490	sub fork_call(&@) {
359	and return;	491	my ($cb, @args) = @_;
360		492
361	close $fh	493	# we seemingly have to make a local copy of the whole thing,
362	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
363		496
364	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
365	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
366		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
367	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	641	}
369		642
370	=back	643	=back
371		644
372	=cut	645	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
381		654
382	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	657	Crossfire TRT).
385		658
386	=over 4	659	=over 4
387		660
388	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
389		662
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
553		826
554	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		831
559	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	833	my $pkg = shift @arg;
561		834
562	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
592	}	865	}
593		866
594	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
595	} else {	868	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	870	}
598		871
599	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
600	}	873	}
601		874
…		…
603	if (ref $_[0]) {	876	if (ref $_[0]) {
604	_object_attach @_;	877	_object_attach @_;
605	} else {	878	} else {
606	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
607	}	880	}
		881	_recalc_want;
608	};	882	};
609		883
610	# all those should be optimised	884	# all those should be optimised
611	sub cf::attachable::detach {	885	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
616	reattach ($obj);	890	reattach ($obj);
617	} else {	891	} else {
618	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
619	}	893	}
		894	_recalc_want;
620	};	895	};
621		896
622	sub cf::attachable::attached {	897	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
624		899
…		…
639	";	914	";
640	die if $@;	915	die if $@;
641	}	916	}
642		917
643	our $override;	918	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		920
646	sub override {	921	sub override {
647	$override = 1;	922	$override = 1;
648	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
649	}	924	}
650		925
651	sub do_invoke {	926	sub do_invoke {
652	my $event = shift;	927	my $event = shift;
653	my $callbacks = shift;	928	my $callbacks = shift;
654		929
655	@invoke_results = ();	930	@INVOKE_RESULTS = ();
656		931
657	local $override;	932	local $override;
658		933
659	for (@$callbacks) {	934	for (@$callbacks) {
660	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
677		952
678	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
679		954
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		958
684	=back	959	=back
685		960
686	=cut	961	=cut
687		962
688	#############################################################################	963	#############################################################################
689	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
690		976
691	sub reattach {	977	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	979	my ($obj) = @_;
694		980
…		…
739	);	1025	);
740		1026
741	sub object_freezer_save {	1027	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
743		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
744	sync_job {	1032	sync_job {
745	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
748		1037
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	1042	close $fh;
754		1043
755	if (@$objs) {	1044	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	1050	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
763	}	1052	}
764	} else {	1053	} else {
765	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
771	}	1060	}
772	} else {	1061	} else {
773	aio_unlink $filename;	1062	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
775	}	1064	}
776	}	1065	};
		1066
		1067	undef $guard;
777	}	1068	}
778		1069
779	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
781		1072
…		…
786		1077
787	sub object_thawer_load {	1078	sub object_thawer_load {
788	my ($filename) = @_;	1079	my ($filename) = @_;
789		1080
790	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
791		1084
792	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
793	or return;	1086	or return;
794		1087
795	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
797	or return;	1090	or return;
		1091
		1092	undef $guard;
798	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1094	}
800		1095
		1096	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
803	return ($data, $av);	1100	($data, $av)
804	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
805		1108
806	#############################################################################	1109	#############################################################################
807	# command handling &c	1110	# command handling &c
808		1111
809	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1126	}
824		1127
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1129
827	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
828		1135
829	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
830	called.	1137	called.
831		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
832	=cut	1150	=cut
833		1151
834	sub register_extcmd {	1152	sub register_extcmd {
835	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
836		1154
837	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
838	}	1162	}
839		1163
840	cf::player->attach (	1164	cf::player->attach (
841	on_command => sub {	1165	on_command => sub {
842	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1175	cf::override;
852	},	1176	},
853	on_extcmd => sub {	1177	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
855		1179
856	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1181
858	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
864	} else {	1197	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1199	}
867		1200
868	cf::override;	1201	cf::override;
869	},	1202	},
870	);	1203	);
871		1204
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
907	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1210	next unless -r $path;
909	eval {	1211
910	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
911	1	1269	}
912	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
913	}	1275	};
914	}	1276	}
915		1277
916	#############################################################################	1278	#############################################################################
917		1279
		1280	=back
		1281
918	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
919		1283
920	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
921		1285
922	=cut	1286	=cut
…		…
927		1291
928	=head3 cf::player	1292	=head3 cf::player
929		1293
930	=over 4	1294	=over 4
931		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
932	=item cf::player::find $login	1310	=item cf::player::find $login
933		1311
934	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
935		1313
936	=cut	1314	=cut
937		1315
938	sub playerdir($) {	1316	sub playerdir($) {
939	cf::localdir	1317	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1319	}
945		1320
946	sub path($) {	1321	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1323
949	(playerdir $login) . "/$login.pl"	1324	(playerdir $login) . "/playerdata"
950	}	1325	}
951		1326
952	sub find_active($) {	1327	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1328	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1329	and $cf::PLAYER{$_[0]}->active
…		…
967	my $login = $_[0];	1342	my $login = $_[0];
968		1343
969	my $guard = cf::lock_acquire "user_find:$login";	1344	my $guard = cf::lock_acquire "user_find:$login";
970		1345
971	$cf::PLAYER{$_[0]} || do {	1346	$cf::PLAYER{$_[0]} || do {
972	my $pl = load_pl path $login	1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
973	or return;	1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
974	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
975	}	1363	}
976	}	1364	}
977	}	1365	}
978		1366
…		…
988		1376
989	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
991		1379
992	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
993	Coro::cede;	1381	cf::cede_to_tick;
994	}	1382	}
995		1383
996	sub new($) {	1384	sub new($) {
997	my ($login) = @_;	1385	my ($login) = @_;
998		1386
…		…
1004	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1005		1393
1006	$self	1394	$self
1007	}	1395	}
1008		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
1009	=item $pl->quit_character	1407	=item $pl->quit_character
1010		1408
1011	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1013		1411
1014	=cut	1412	=cut
1015		1413
1016	sub quit_character {	1414	sub quit_character {
1017	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1018		1418
1019	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1421
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1032	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
1033	}	1453	}
1034		1454
1035	=item cf::player::list_logins	1455	=item cf::player::list_logins
1036		1456
1037	Returns am arrayref of all valid playernames in the system, can take a	1457	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1039		1459
1040	=cut	1460	=cut
1041		1461
1042	sub list_logins {	1462	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1464	or return [];
1045		1465
1046	my @logins;	1466	my @logins;
1047		1467
1048	for my $login (@$dirs) {	1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1052		1477
1053	utf8::decode $login;	1478	utf8::decode $login;
1054	push @logins, $login;	1479	push @logins, $login;
1055	}	1480	}
1056		1481
…		…
1064		1489
1065	=cut	1490	=cut
1066		1491
1067	sub maps($) {	1492	sub maps($) {
1068	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1496
1070	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1071	or return;	1498	or return;
1072		1499
1073	my @paths;	1500	my @paths;
…		…
1075	for (@$files) {	1502	for (@$files) {
1076	utf8::decode $_;	1503	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1079		1506
1080	s/\.map$//;	1507	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1508	}
1083		1509
1084	\@paths	1510	\@paths
1085	}	1511	}
1086		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1088		1565
1089	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1090		1567
1091	=cut	1568	=cut
1092		1569
1093	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1095		1572
1096	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1574	}
1100		1575
1101	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1102		1616
1103	=back	1617	=back
1104
1105		1618
1106	=head3 cf::map	1619	=head3 cf::map
1107		1620
1108	=over 4	1621	=over 4
1109		1622
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1652	)
1140	}	1653	}
1141		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
1142	sub register {	1663	sub register {
1143	my (undef, $regex) = @_;	1664	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1665	my $pkg = caller;
1145		1666
1146	no strict;	1667	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1668	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1669
1149	$EXT_MAP{$pkg} = qr<$regex>;	1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1671	}
1151		1672
1152	# also paths starting with '/'	1673	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1675
1155	sub thawer_merge {	1676	sub thawer_merge {
1156	my ($self, $merge) = @_;	1677	my ($self, $merge) = @_;
1157		1678
1158	# we have to keep some variables in memory intact	1679	# we have to keep some variables in memory intact
1159	local $self->{path};	1680	local $self->{path};
1160	local $self->{load_path};	1681	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1682
1164	$self->SUPER::thawer_merge ($merge);	1683	$self->SUPER::thawer_merge ($merge);
1165	}	1684	}
1166		1685
1167	sub normalise {	1686	sub normalise {
1168	my ($path, $base) = @_;	1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
1169		1692
1170	# map plan:	1693	# map plan:
1171	#	1694	#
1172	# /! non-realised random map exit (special hack!)	1695	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1696	# {... are special paths that are not being touched
…		…
1201		1724
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1726
1204	$path = normalise $path, $base;	1727	$path = normalise $path, $base;
1205		1728
1206	for my $pkg (keys %EXT_MAP) {	1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1731	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1732	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1733	$self->init; # pass $1 etc.
1211	return $self;	1734	return $self;
1212	}	1735	}
1213	}	1736	}
1214		1737
1215	Carp::carp "unable to resolve path '$path'.";	1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
1216	()	1739	()
1217	}	1740	}
1218		1741
1219	sub init {	1742	sub init {
1220	my ($self) = @_;	1743	my ($self) = @_;
…		…
1235		1758
1236	# the original (read-only) location	1759	# the original (read-only) location
1237	sub load_path {	1760	sub load_path {
1238	my ($self) = @_;	1761	my ($self) = @_;
1239		1762
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1763	"$MAPDIR/$self->{path}.map"
1241	}	1764	}
1242		1765
1243	# the temporary/swap location	1766	# the temporary/swap location
1244	sub save_path {	1767	sub save_path {
1245	my ($self) = @_;	1768	my ($self) = @_;
1246		1769
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1771	"$TMPDIR/$path.map"
1249	}	1772	}
1250		1773
1251	# the unique path, undef == no special unique path	1774	# the unique path, undef == no special unique path
1252	sub uniq_path {	1775	sub uniq_path {
1253	my ($self) = @_;	1776	my ($self) = @_;
1254		1777
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1779	"$UNIQUEDIR/$path"
1257	}	1780	}
1258		1781
1259	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1260	# all maps in C++...	1783	# all maps in C++...
1261	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1263		1786
1264	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1266	}	1789	}
1267		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
1268	sub unlink_save {	1799	sub unlink_save {
1269	my ($self) = @_;	1800	my ($self) = @_;
1270		1801
1271	utf8::encode (my $save = $self->save_path);	1802	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1806
1276	sub load_header_from($) {	1807	sub load_header_from($) {
1277	my ($self, $path) = @_;	1808	my ($self, $path) = @_;
1278		1809
1279	utf8::encode $path;	1810	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1281	or return;	1812	or return;
1282		1813
1283	$self->_load_header ($path)	1814	$self->_load_header ($f)
1284	or return;	1815	or return;
1285		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
1286	$self->{load_path} = $path;	1820	$self->{load_path} = $path;
1287		1821
1288	1	1822	1
1289	}	1823	}
1290		1824
1291	sub load_orig {	1825	sub load_header_orig {
1292	my ($self) = @_;	1826	my ($self) = @_;
1293		1827
1294	$self->load_header_from ($self->load_path)	1828	$self->load_header_from ($self->load_path)
1295	}	1829	}
1296		1830
1297	sub load_temp {	1831	sub load_header_temp {
1298	my ($self) = @_;	1832	my ($self) = @_;
1299		1833
1300	$self->load_header_from ($self->save_path)	1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
1301	}	1854	}
1302		1855
1303	sub load_header {	1856	sub load_header {
1304	my ($self) = @_;	1857	my ($self) = @_;
1305		1858
1306	if ($self->load_temp) {	1859	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1860	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1861	} else {
1313	$self->load_orig	1862	$self->load_header_orig
1314	or return;	1863	or return;
1315		1864	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1865	}
		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
		1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
1321		1872
1322	1	1873	1
1323	}	1874	}
1324		1875
1325	sub find;	1876	sub find;
1326	sub find {	1877	sub find {
1327	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1328		1879
1329	$path = normalise $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1330		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1331	cf::lock_wait "map_find:$path";	1883	cf::lock_wait "map_find:$path";
1332		1884
1333	$cf::MAP{$path} || do {	1885	$cf::MAP{$path} || do {
1334	my $guard = cf::lock_acquire "map_find:$path";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
1335	my $map = new_from_path cf::map $path	1889	my $map = new_from_path cf::map $path
1336	or return;	1890	or return;
1337		1891
1338	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1339		1893
1340	$map->load_header	1894	$map->load_header
1341	or return;	1895	or return;
1342		1896
1343	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1345	$map->reset;	1902	$map->reset;
1346	undef $guard;
1347	$map = find $path	1903	return find $path;
1348	or return;
1349	}	1904	}
1350		1905
1351	$cf::MAP{$path} = $map	1906	$cf::MAP{$path} = $map
1352	}	1907	}
1353	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1354		1912
1355	sub load {	1913	sub load {
1356	my ($self) = @_;	1914	my ($self) = @_;
1357		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1358	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1359	my $guard = cf::lock_acquire "map_load:$path";	1921	my $guard = cf::lock_acquire "map_data:$path";
1360		1922
		1923	return unless $self->valid;
1361	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1362		1925
1363	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1364		1927
1365	$self->alloc;	1928	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1367	or return;	1936	or return;
1368		1937
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1370	if delete $self->{load_original};	1939	if delete $self->{load_original};
1371		1940
1372	if (my $uniq = $self->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;	1942	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1375	$self->clear_unique_items;	1945	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1377	}	1949	}
1378	}	1950	}
1379		1951
1380	Coro::cede;	1952	$f->resolve_delayed_derefs;
1381		1953
		1954	cf::cede_to_tick;
1382	# now do the right thing for maps	1955	# now do the right thing for maps
1383	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;
1390	$self->set_darkness_map;
1391	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	1958	unless $self->difficulty;
1393	Coro::cede;	1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1394	$self->activate;	1968	$self->activate;
1395	}	1969	}
1396		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1397	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
1398	}	1978	}
1399		1979
1400	sub customise_for {	1980	sub customise_for {
1401	my ($self, $ob) = @_;	1981	my ($self, $ob) = @_;
1402		1982
1403	return find "~" . $ob->name . "/" . $self->{path}	1983	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	1984	if $self->per_player;
1405		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
1406	$self	1989	$self
1407	}	1990	}
1408		1991
1409	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1410	sub load_diag {	1993	sub load_neighbours {
1411	my ($map) = @_;	1994	my ($map) = @_;
1412		1995
1413	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1414		1997
1415	for (0 .. 3) {	1998	for (0 .. 3) {
1416	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1417	or next;	2000	or next;
1418	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1419	or next;	2002	or next;
1420	$neigh->load;	2003	$neigh->load;
1421		2004
		2005	push @neigh,
1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1424	}	2008	}
1425		2009
1426	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1427	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1428	or next;	2013	or next;
1429	$neigh->load;	2014	$neigh->load;
1430	}	2015	}
1431	}	2016	}
1432		2017
…		…
1437	}	2022	}
1438		2023
1439	sub do_load_sync {	2024	sub do_load_sync {
1440	my ($map) = @_;	2025	my ($map) = @_;
1441		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1442	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1443	}	2031	}
1444		2032
1445	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = undef;	2034	our $MAP_PREFETCHER = undef;
1447		2035
1448	sub find_async {	2036	sub find_async {
1449	my ($path, $origin) = @_;	2037	my ($path, $origin, $load) = @_;
1450		2038
1451	$path = normalise $path, $origin && $origin->{path};	2039	$path = normalise $path, $origin && $origin->{path};
1452		2040
1453	if (my $map = $cf::MAP{$path}) {	2041	if (my $map = $cf::MAP{$path}) {
1454	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1455	}	2043	}
1456		2044
1457	undef $MAP_PREFETCH{$path};	2045	$MAP_PREFETCH{$path} |= $load;
		2046
1458	$MAP_PREFETCHER ||= cf::async {	2047	$MAP_PREFETCHER ||= cf::async {
1459	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1460	for my $path (keys %MAP_PREFETCH) {	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	warn "prefetching $path...\n";#d#
1462	my $map = find $path	2050	if (my $map = find $k) {
1463	or next;
1464	$map->load;	2051	$map->load if $v;
		2052	}
1465		2053
1466	delete $MAP_PREFETCH{$path};	2054	delete $MAP_PREFETCH{$k};
1467	}	2055	}
1468	}	2056	}
1469	undef $MAP_PREFETCHER;	2057	undef $MAP_PREFETCHER;
1470	};	2058	};
		2059	$MAP_PREFETCHER->prio (6);
1471		2060
1472	()	2061	()
1473	}	2062	}
1474		2063
1475	sub save {	2064	sub save {
1476	my ($self) = @_;	2065	my ($self) = @_;
1477		2066
1478	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1479		2068
1480	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1481		2070
1482	return unless $self->dirty;	2071	return unless $self->dirty;
1483		2072
…		…
1506	my ($self) = @_;	2095	my ($self) = @_;
1507		2096
1508	# save first because save cedes	2097	# save first because save cedes
1509	$self->save;	2098	$self->save;
1510		2099
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2101
1513	return if $self->players;	2102	return if $self->players;
1514	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1515	return if $self->{deny_save};	2104	return if $self->{deny_save};
1516		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1517	$self->clear;	2110	$self->clear;
1518	$self->in_memory (cf::MAP_SWAPPED);
1519	}	2111	}
1520		2112
1521	sub reset_at {	2113	sub reset_at {
1522	my ($self) = @_;	2114	my ($self) = @_;
1523		2115
1524	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1526	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1527		2118
1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1530		2121
…		…
1541	my ($self) = @_;	2132	my ($self) = @_;
1542		2133
1543	my $lock = cf::lock_acquire "map_data:$self->{path}";	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2135
1545	return if $self->players;	2136	return if $self->players;
1546	return if $self->isa ("ext::map_per_player");#d#
1547		2137
1548	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1549		2149
1550	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1551		2151
1552	$self->in_memory (cf::MAP_SWAPPED);	2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
1553	$self->clear;	2154	$self->clear;
1554
1555	$_->clear_links_to ($self) for values %cf::MAP;
1556		2155
1557	$self->unlink_save;	2156	$self->unlink_save;
1558	$self->destroy;	2157	$self->destroy;
1559	}	2158	}
1560		2159
1561	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1562		2161
1563	sub nuke {	2162	sub nuke {
1564	my ($self) = @_;	2163	my ($self) = @_;
1565		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
1566	delete $cf::MAP{$self->path};	2168	delete $cf::MAP{$self->path};
1567		2169
1568	$self->unlink_save;	2170	$self->unlink_save;
1569		2171
1570	bless $self, "cf::map";	2172	bless $self, "cf::map";
1571	delete $self->{deny_reset};	2173	delete $self->{deny_reset};
1572	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1573	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1575		2177
1576	$cf::MAP{$self->path} = $self;	2178	$cf::MAP{$self->path} = $self;
		2179	}
1577		2180
1578	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
1579	}	2218	}
1580		2219
1581	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1582		2221
1583	Returns an arrayref of paths of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	2223	instantiated unique items. May block.
1585		2224
1586	=cut	2225	=cut
1587		2226
1588	sub unique_maps() {	2227	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1590	or return;	2229	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	2230	utf8::decode $_;
1596	next if /\.pst$/;
1597	next unless /^$PATH_SEP/o;
1598
1599	s/\.map$//;	2231	/\.map$/
1600	push @paths, $_;	2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
1601	}	2235	]
1602
1603	\@paths
1604	}	2236	}
1605		2237
1606	package cf;	2238	package cf;
1607		2239
1608	=back	2240	=back
…		…
1626	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1627	}	2259	}
1628		2260
1629	sub inv_recursive {	2261	sub inv_recursive {
1630	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
1631	}	2294	}
1632		2295
1633	package cf;	2296	package cf;
1634		2297
1635	=back	2298	=back
…		…
1654		2317
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2319
1657	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1659	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1660	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1662	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1663	}	2345	}
1664		2346
1665	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1666		2348
1667	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1699	=cut	2381	=cut
1700		2382
1701	sub link_map {	2383	sub link_map {
1702	unless ($LINK_MAP) {	2384	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2385	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2387	$LINK_MAP->load;
1706	}	2388	}
1707		2389
1708	$LINK_MAP	2390	$LINK_MAP
1709	}	2391	}
…		…
1714	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1715		2397
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2399
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1720		2402
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2404	}
1723		2405
1724	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1726		2410
1727	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1728		2412
1729	unless ($map) {	2413	unless ($map) {
1730	# restore original map position	2414	# restore original map position
…		…
1744	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1745	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1746	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1747		2431
1748	$map->load;	2432	$map->load;
1749	$map->load_diag;	2433	$map->load_neighbours;
1750		2434
1751	return unless $self->contr->active;	2435	return unless $self->contr->active;
1752	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1754	}	2440	}
1755		2441
1756	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1757	on_logout => sub {
1758	my ($pl) = @_;
1759		2443
1760	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1761	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1762	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1763	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1764	};	2448	be called at the end of this process.
1765	}
1766	},
1767	on_login => sub {
1768	my ($pl) = @_;
1769		2449
1770	# try to abort aborted map switching on player login :)
1771	# should happen only on crashes
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787
1788	=item $player_object->goto ($path, $x, $y)
1789
1790	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1791		2453
1792	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2459
1795	$self->enter_link;	2460	$self->enter_link;
1796		2461
1797	(async {	2462	(async {
1798	my $map = cf::map::find $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1800		2487	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1805		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1807	})->prio (1);	2506	})->prio (1);
1808	}	2507	}
1809		2508
1810	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1811		2510
…		…
1840	# that depends on the exit object	2539	# that depends on the exit object
1841		2540
1842	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1843		2542
1844	if ($exit->map) {	2543	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1849	}	2548	}
1850		2549
1851	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1852		2551
1853	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1854	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2554	my $meta = "$RANDOMDIR/$md5.meta";
1856		2555
1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1858	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
1859	undef $fh;	2558	undef $fh;
1860	aio_rename "$meta~", $meta;	2559	aio_rename "$meta~", $meta;
…		…
1867	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1868	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1869		2568
1870	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1871		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1872	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
1873		2587
1874	(async {	2588	(async {
1875	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1876	unless (eval {	2590	unless (eval {
1877	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1878	if $exit->slaying eq "/!";
1879
1880	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1881	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1882		2592
1883	1;	2593	1;
1884	}) {	2594	}) {
1885	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1886	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1887	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1888	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1889		2599
1890	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1891	$self->leave_link;	2601	$self->leave_link;
1892	}	2602	}
1893	})->prio (1);	2603	})->prio (1);
…		…
1906		2616
1907	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1908	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1909		2619
1910	utf8::encode $text;	2620	utf8::encode $text;
1911	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1912	}	2622	}
1913		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1914		2739
1915	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1916		2741
1917	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
1918	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1919	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1920		2745
1921	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1922	reliable at some point in the future.	2747	become reliable at some point in the future.
1923		2748
1924	=cut	2749	=cut
1925		2750
1926	sub cf::client::query {	2751	sub cf::client::query {
1927	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1935	utf8::encode $text;	2760	utf8::encode $text;
1936	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1937		2762
1938	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1939	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1940	}	2767	}
1941		2768
1942	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1943	on_reply => sub {	2775	on_reply => sub {
1944	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1945		2777
1946	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1947	# get handled first	2779	# get handled first
1948	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1949	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1950		2782
1951	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1952		2785
1953	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1954		2787
1955	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1956	if (@$queue) {	2789	if (@$queue) {
…		…
1958	} else {	2791	} else {
1959	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1960	}	2793	}
1961	}	2794	}
1962	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
1963	);	2822	);
1964		2823
1965	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
1966		2825
1967	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2008	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2009	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2010		2869
2011	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2012		2871
2013	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2014		2877
2015	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2016		2879
2017	=pod	2880	=pod
2018		2881
2019	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2020		2883
2021	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2022	cf::object::player player	2888	cf::object::player
2023	cf::player peaceful	2889	player
2024	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2025		2896
2026	=cut	2897	=cut
2027		2898
2028	for (	2899	for (
2029	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2030	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2031	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2032	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2033	) {	2906	) {
2034	no strict 'refs';	2907	no strict 'refs';
…		…
2105	=back	2978	=back
2106		2979
2107	=cut	2980	=cut
2108		2981
2109	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2110		2984
2111	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2112		2987
2113	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2114	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2115	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2116		2991
2117	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2118	using it, it should be unique.
2119		2993
2120	=over 4	2994	warn "loading facedata from $path\n";
2121		2995
2122	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2123		2999
2124	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2125	modified. After modifications, you have to call C<cf::db_dirty> or
2126	C<cf::db_sync>.
2127		3001
2128	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2129		3004
2130	Returns a single value from the database	3005	# patch in the exptable
2131		3006	$facedata->{resource}{"res/exp_table"} = {
2132	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2133		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2134	Stores the given family hashref into the database. Updates are delayed, if
2135	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2136
2137	=item cf::db_put $family => $key => $value
2138
2139	Stores the given C<$value> in the family hash. Updates are delayed, if you
2140	want the data to be synced to disk immediately, use C<cf::db_sync>.
2141
2142	=item cf::db_dirty
2143
2144	Marks the database as dirty, to be updated at a later time.
2145
2146	=item cf::db_sync
2147
2148	Immediately write the database to disk I<if it is dirty>.
2149
2150	=cut
2151
2152	our $DB;
2153
2154	{
2155	my $path = cf::localdir . "/database.pst";
2156
2157	sub db_load() {
2158	$DB = stat $path ? Storable::retrieve $path : { };
2159	}
2160
2161	my $pid;
2162
2163	sub db_save() {
2164	waitpid $pid, 0 if $pid;
2165	if (0 == ($pid = fork)) {
2166	$DB->{_meta}{version} = 1;
2167	Storable::nstore $DB, "$path~";
2168	rename "$path~", $path;
2169	cf::_exit 0 if defined $pid;
2170	}
2171	}
2172
2173	my $dirty;
2174
2175	sub db_sync() {
2176	db_save if $dirty;
2177	undef $dirty;
2178	}
2179
2180	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2181	db_sync;
2182	});	3009	};
		3010	cf::cede_to_tick;
2183		3011
2184	sub db_dirty() {
2185	$dirty = 1;
2186	$idle->start;
2187	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2188		3014
2189	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
2190	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2191	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
2192	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
2193	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2194		3021
2195	sub db_put($$;$) {	3022	cf::cede_to_tick;
2196	if (@_ >= 3) {
2197	$DB->{$_[0]}{$_[1]} = $_[2];
2198	} else {
2199	$DB->{$_[0]} = $_[1];
2200	}
2201	db_dirty;
2202	}
2203
2204	cf::global->attach (
2205	prio => 10000,
2206	on_cleanup => sub {
2207	db_sync;
2208	},	3023	}
2209	);
2210	}
2211		3024
2212	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2213	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2214		3035
2215	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2216	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2217	or return;	3163	or return;
2218		3164
2219	local $/;	3165	local $/;
2220	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2221		3167
…		…
2240	(async {	3186	(async {
2241	Event::one_event;	3187	Event::one_event;
2242	})->prio (Coro::PRIO_MAX);	3188	})->prio (Coro::PRIO_MAX);
2243	};	3189	};
2244		3190
2245	cfg_load;	3191	reload_config;
2246	db_load;	3192	db_init;
2247	load_extensions;	3193	load_extensions;
2248		3194
2249	$TICK_WATCHER->start;	3195	$TICK_WATCHER->start;
2250	Event::loop;	3196	Event::loop;
2251	}	3197	}
…		…
2255		3201
2256	# install some emergency cleanup handlers	3202	# install some emergency cleanup handlers
2257	BEGIN {	3203	BEGIN {
2258	for my $signal (qw(INT HUP TERM)) {	3204	for my $signal (qw(INT HUP TERM)) {
2259	Event->signal (	3205	Event->signal (
		3206	reentrant => 0,
2260	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2261	signal => $signal,	3208	signal => $signal,
		3209	prio => 0,
2262	cb => sub {	3210	cb => sub {
2263	cf::cleanup "SIG$signal";	3211	cf::cleanup "SIG$signal";
2264	},	3212	},
2265	);	3213	);
2266	}	3214	}
		3215	}
		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
2267	}	3253	}
2268		3254
2269	sub emergency_save() {	3255	sub emergency_save() {
2270	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2271		3257
…		…
2288	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2289	$map->valid or next;	3275	$map->valid or next;
2290	$map->save;	3276	$map->save;
2291	}	3277	}
2292	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2293	};	3283	};
2294		3284
2295	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2296	}	3286	}
2297		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2298	sub reload() {	3295	sub do_reload_perl() {
2299	# can/must only be called in main	3296	# can/must only be called in main
2300	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2301	warn "can only reload from main coroutine";	3298	warn "can only reload from main coroutine";
2302	return;	3299	return;
2303	}	3300	}
2304		3301
2305	warn "reloading...";	3302	warn "reloading...";
2306		3303
2307	warn "cancelling server ticker";	3304	warn "entering sync_job";
2308	$TICK_WATCHER->cancel;
2309		3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2310	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2311		3310
2312	eval {	3311	warn "syncing database to disk";
		3312	BDB::db_env_txn_checkpoint $DB_ENV;
		3313
2313	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2314
2315	warn "syncing database to disk";
2316	cf::db_sync;
2317		3315
2318	warn "cancelling all WF_AUTOCANCEL watchers";	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2319	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2320	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2321	}	3319	}
2322		3320
2323	warn "flushing outstanding aio requests";	3321	warn "flushing outstanding aio requests";
2324	for (;;) {	3322	for (;;) {
		3323	BDB::flush;
2325	IO::AIO::flush;	3324	IO::AIO::flush;
2326	Coro::cede;	3325	Coro::cede;
2327	last unless IO::AIO::nreqs;	3326	last unless IO::AIO::nreqs || BDB::nreqs;
2328	warn "iterate...";	3327	warn "iterate...";
2329	}	3328	}
		3329
		3330	++$RELOAD;
2330		3331
2331	warn "cancelling all extension coros";	3332	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3334	%EXT_CORO = ();
2334		3335
2335	warn "removing commands";	3336	warn "removing commands";
2336	%COMMAND = ();	3337	%COMMAND = ();
2337		3338
2338	warn "removing ext commands";	3339	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3340	%EXTCMD = ();
		3341	%EXTICMD = ();
2340		3342
2341	warn "unloading/nuking all extensions";	3343	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3344	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3345	warn "... unloading $pkg";
2344		3346
…		…
2374	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3378
2377	warn "unloading cf.pm \"a bit\"";	3379	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2379		3382
2380	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3384	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2383		3386
…		…
2386	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2387	require cf;	3390	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3392
2390	warn "loading config and database again";	3393	warn "loading config and database again";
2391	cf::cfg_load;	3394	cf::reload_config;
2392	cf::db_load;
2393		3395
2394	warn "loading extensions";	3396	warn "loading extensions";
2395	cf::load_extensions;	3397	cf::load_extensions;
2396		3398
2397	warn "reattaching attachments to objects/players";	3399	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3400	_global_reattach; # objects, sockets
2399	warn "reattaching attachments to maps";	3401	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
		3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2401		3405
2402	warn "restarting server ticker";	3406	warn "leaving sync_job";
2403		3407
2404	$TICK_WATCHER->start;	3408	1
2405	};	3409	} or do {
2406
2407	if ($@) {
2408	warn $@;	3410	warn $@;
2409	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2410	exit 1;	3412	exit 1;
2411	}	3413	};
2412		3414
2413	warn "reloaded";	3415	warn "reloaded";
2414	};	3416	};
2415		3417
2416	our $RELOAD_WATCHER; # used only during reload	3418	our $RELOAD_WATCHER; # used only during reload
2417		3419
		3420	sub reload_perl() {
		3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
		3423
		3424	$RELOAD_WATCHER ||= Event->timer (
		3425	reentrant => 0,
		3426	after => 0,
		3427	data => WF_AUTOCANCEL,
		3428	cb => sub {
		3429	do_reload_perl;
		3430	undef $RELOAD_WATCHER;
		3431	},
		3432	);
		3433	}
		3434
2418	register_command "reload" => sub {	3435	register_command "reload" => sub {
2419	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2420		3437
2421	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2422	$who->message ("reloading server.");	3439	$who->message ("reloading server.");
2423		3440	async { reload_perl };
2424	# doing reload synchronously and two reloads happen back-to-back,
2425	# coro crashes during coro_state_free->destroy here.
2426
2427	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2428	reload;
2429	undef $RELOAD_WATCHER;
2430	});
2431	}	3441	}
2432	};	3442	};
2433		3443
2434	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
2435		3445
2436	my $bug_warning = 0;	3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
		3468
		3469	our $stat_fh;
		3470	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2437		3471
2438	$TICK_WATCHER = Event->timer (	3472	$TICK_WATCHER = Event->timer (
2439	reentrant => 0,	3473	reentrant => 0,
2440	parked => 1,	3474	parked => 1,
2441	prio => 0,	3475	prio => 0,
…		…
2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3480	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2447	unless ++$bug_warning > 10;	3481	unless ++$bug_warning > 10;
2448	return;	3482	return;
2449	}	3483	}
2450		3484
		3485	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3486
2451	$NOW = Event::time;	3487	$NOW = $tick_start = Event::time;
2452		3488
2453	cf::server_tick; # one server iteration	3489	cf::server_tick; # one server iteration
		3490
2454	$RUNTIME += $TICK;	3491	$RUNTIME += $TICK;
2455	$NEXT_TICK += $TICK;	3492	$NEXT_TICK += $TICK;
2456		3493
2457	$WAIT_FOR_TICK->broadcast;	3494	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2458	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3495	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3496	Coro::async_pool {
		3497	write_runtime
		3498	or warn "ERROR: unable to write runtime file: $!";
		3499	};
		3500	}
		3501
		3502	# my $AFTER = Event::time;
		3503	# warn $AFTER - $NOW;#d#
		3504
		3505	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3506	$sig->send;
		3507	}
		3508	while (my $sig = shift @WAIT_FOR_TICK) {
		3509	$sig->send;
		3510	}
		3511
		3512	$NOW = Event::time;
2459		3513
2460	# if we are delayed by four ticks or more, skip them all	3514	# if we are delayed by four ticks or more, skip them all
2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3515	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2462		3516
2463	$TICK_WATCHER->at ($NEXT_TICK);	3517	$TICK_WATCHER->at ($NEXT_TICK);
2464	$TICK_WATCHER->start;	3518	$TICK_WATCHER->start;
		3519
		3520	$LOAD = ($NOW - $tick_start) / $TICK;
		3521	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3522
		3523	_post_tick;
		3524
		3525	# gather some statistics#d#
		3526	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3527	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2465	},	3528	},
2466	);	3529	);
2467		3530
		3531	{
		3532	BDB::min_parallel 8;
		3533	BDB::max_poll_time $TICK * 0.1;
		3534	$BDB_POLL_WATCHER = Event->io (
		3535	reentrant => 0,
		3536	fd => BDB::poll_fileno,
		3537	poll => 'r',
		3538	prio => 0,
		3539	data => WF_AUTOCANCEL,
		3540	cb => \&BDB::poll_cb,
		3541	);
		3542
		3543	BDB::set_sync_prepare {
		3544	my $status;
		3545	my $current = $Coro::current;
		3546	(
		3547	sub {
		3548	$status = $!;
		3549	$current->ready; undef $current;
		3550	},
		3551	sub {
		3552	Coro::schedule while defined $current;
		3553	$! = $status;
		3554	},
		3555	)
		3556	};
		3557
		3558	unless ($DB_ENV) {
		3559	$DB_ENV = BDB::db_env_create;
		3560
		3561	cf::sync_job {
		3562	eval {
		3563	BDB::db_env_open
		3564	$DB_ENV,
		3565	$BDBDIR,
		3566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3568	0666;
		3569
		3570	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3571
		3572	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3573	| BDB::LOG_AUTOREMOVE, 1);
		3574	$DB_ENV->set_lk_detect;
		3575	};
		3576
		3577	cf::cleanup "db_env_open(db): $@" if $@;
		3578	};
		3579	}
		3580
		3581	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3582	after => 11,
		3583	interval => 60,
		3584	hard => 1,
		3585	prio => 0,
		3586	data => WF_AUTOCANCEL,
		3587	cb => sub {
		3588	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3589	},
		3590	);
		3591	$BDB_TRICKLE_WATCHER = Event->timer (
		3592	after => 5,
		3593	interval => 10,
		3594	hard => 1,
		3595	prio => 0,
		3596	data => WF_AUTOCANCEL,
		3597	cb => sub {
		3598	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3599	},
		3600	);
		3601	}
		3602
		3603	{
		3604	IO::AIO::min_parallel 8;
		3605
		3606	undef $Coro::AIO::WATCHER;
2468	IO::AIO::max_poll_time $TICK * 0.2;	3607	IO::AIO::max_poll_time $TICK * 0.1;
2469
2470	$AIO_POLL_WATCHER = Event->io (	3608	$AIO_POLL_WATCHER = Event->io (
2471	fd => IO::AIO::poll_fileno,	3609	reentrant => 0,
2472	poll => 'r',
2473	prio => 5,
2474	data => WF_AUTOCANCEL,
2475	cb => \&IO::AIO::poll_cb,
2476	);
2477
2478	$WRITE_RUNTIME_WATCHER = Event->timer (
2479	data => WF_AUTOCANCEL,	3610	data => WF_AUTOCANCEL,
2480	after => 1,	3611	fd => IO::AIO::poll_fileno,
2481	interval => 10,	3612	poll => 'r',
2482	cb => Coro::unblock_sub {	3613	prio => 6,
2483	write_runtime	3614	cb => \&IO::AIO::poll_cb,
2484	or warn "ERROR: unable to write runtime file: $!";	3615	);
		3616	}
		3617
		3618	my $_log_backtrace;
		3619
		3620	sub _log_backtrace {
		3621	my ($msg, @addr) = @_;
		3622
		3623	$msg =~ s/\n//;
		3624
		3625	# limit the # of concurrent backtraces
		3626	if ($_log_backtrace < 2) {
		3627	++$_log_backtrace;
		3628	async {
		3629	my @bt = fork_call {
		3630	@addr = map { sprintf "%x", $_ } @addr;
		3631	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3632	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3633	or die "addr2line: $!";
		3634
		3635	my @funcs;
		3636	my @res = <$fh>;
		3637	chomp for @res;
		3638	while (@res) {
		3639	my ($func, $line) = splice @res, 0, 2, ();
		3640	push @funcs, "[$func] $line";
		3641	}
		3642
		3643	@funcs
		3644	};
		3645
		3646	LOG llevInfo, "[ABT] $msg\n";
		3647	LOG llevInfo, "[ABT] $_\n" for @bt;
		3648	--$_log_backtrace;
		3649	};
		3650	} else {
		3651	LOG llevInfo, "[ABT] $msg\n";
		3652	LOG llevInfo, "[ABT] [suppressed]\n";
2485	},	3653	}
2486	);	3654	}
		3655
		3656	# load additional modules
		3657	use cf::pod;
2487		3658
2488	END { cf::emergency_save }	3659	END { cf::emergency_save }
2489		3660
2490	1	3661	1
2491		3662

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