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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.400 by root, Mon Dec 17 06:36:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
53		87
54	our %CFG;	88	our %CFG;
55		89
56	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
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;
87		119
88	sub cf::map::normalise;	120	sub cf::map::normalise;
89		121
…		…
100	=item $cf::RUNTIME	132	=item $cf::RUNTIME
101		133
102	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
103	every server tick.	135	every server tick.
104		136
105	=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
106		140
107	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		145
110	=item $cf::NOW	146	=item $cf::NOW
111		147
112	The time of the last (current) server tick.	148	The time of the last (current) server tick.
113		149
114	=item $cf::TICK	150	=item $cf::TICK
115		151
116	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
117		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.
		163
118	=item %cf::CFG	164	=item %cf::CFG
119		165
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	167	from wherever your confdir points to.
122		168
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		170
125	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
126	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
127	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.
128	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.
129		180
130	=back	181	=back
131		182
132	=cut	183	=cut
133		184
134	BEGIN {	185	BEGIN {
135	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	187	my $msg = join "", @_;
137	utf8::encode $msg;
138		188
139	$msg .= "\n"	189	$msg .= "\n"
140	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
141		193
142	LOG llevError, $msg;	194	LOG llevError, $msg;
143	};	195	};
144	}	196	}
145		197
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@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';
151	@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)
152		205
153	# 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
154	# within the Safe compartment.	207	# within the Safe compartment.
155	for my $pkg (qw(	208	for my $pkg (qw(
156	cf::global cf::attachable	209	cf::global cf::attachable
…		…
161	)) {	214	)) {
162	no strict 'refs';	215	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	217	}
165		218
166	$Event::DIED = sub {	219	$EV::DIED = sub {
167	warn "error in event callback: @_";	220	warn "error in event callback: @_";
168	};	221	};
		222
		223	#############################################################################
169		224
170	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
171		226
172	=over 4	227	=over 4
173		228
…		…
192	$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;
193	$d	248	$d
194	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
195	}	250	}
196		251
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
200		253
201	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
202		255
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
211		257
212	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
213		259
214	=cut	260	=cut
215		261
216	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
218	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
219	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
220		266
221	=item cf::lock_wait $string	267	=item cf::lock_wait $string
222		268
223	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
224		270
…		…
227	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
228	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,
229	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
230	returned.	276	returned.
231		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
232	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
233	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
234		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
235	=cut	288	=cut
236		289
237	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
238		292
239	sub lock_wait($) {	293	sub lock_wait($) {
240	my ($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#
241		300
242	# wait for lock, if any	301	# wait for lock, if any
243	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;	304	Coro::schedule;
…		…
251		310
252	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
253	lock_wait $key;	312	lock_wait $key;
254		313
255	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
256		316
257	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
258	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
260	}	321	}
261	}	322	}
262		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
263	sub freeze_mainloop {	330	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
265		332
266	my $guard = Coro::guard {	333	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	334	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	335	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
272	$guard	337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
273	}	411	}
274		412
275	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
276		414
277	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		420
283	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
284		422
285	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
286		424
287	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
290		429
291	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
294	fast or be very important.	433	fast or be very important.
…		…
297		436
298	sub sync_job(&) {	437	sub sync_job(&) {
299	my ($job) = @_;	438	my ($job) = @_;
300		439
301	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
302	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
304		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
305	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	449	# (but this is cancel-safe)
307	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
308		451
309	my $busy = 1;	452	my $busy = 1;
310	my @res;	453	my @res;
311		454
312	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	457	@res = eval { $job->() };
314	warn $@ if $@;	458	warn $@ if $@;
315	undef $busy;	459	undef $busy;
316	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
317		461
318	while ($busy) {	462	while ($busy) {
319	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
320	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
321		476
322	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
323	} else {	478	} else {
324	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
325		480
…		…
345	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
346		501
347	$coro	502	$coro
348	}	503	}
349		504
350	sub write_runtime {	505	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		506
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
354	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
355		511
356	my $value = $cf::RUNTIME + 90 + 10;	512	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		513
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	514	sub fork_call(&@) {
361	and return;	515	my ($cb, @args) = @_;
362		516
363	aio_fsync $fh	517	# we seemingly have to make a local copy of the whole thing,
364	and return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
365		520
366	close $fh	521	my @res = Coro::Util::fork_eval {
367	or return;	522	reset_signals;
		523	&$cb
		524	}, @args;
368		525
369	aio_rename "$runtime~", $runtime	526	wantarray ? @res : $res[-1]
370	and return;	527	}
371		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
372	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	665	}
374		666
375	=back	667	=back
376		668
377	=cut	669	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
386		678
387	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	681	Deliantra).
390		682
391	=over 4	683	=over 4
392		684
393	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
394		686
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
558		850
559	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		855
564	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	857	my $pkg = shift @arg;
566		858
567	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
597	}	889	}
598		890
599	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
600	} else {	892	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	894	}
603		895
604	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
605	}	897	}
606		898
…		…
608	if (ref $_[0]) {	900	if (ref $_[0]) {
609	_object_attach @_;	901	_object_attach @_;
610	} else {	902	} else {
611	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
612	}	904	}
		905	_recalc_want;
613	};	906	};
614		907
615	# all those should be optimised	908	# all those should be optimised
616	sub cf::attachable::detach {	909	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
621	reattach ($obj);	914	reattach ($obj);
622	} else {	915	} else {
623	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
624	}	917	}
		918	_recalc_want;
625	};	919	};
626		920
627	sub cf::attachable::attached {	921	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
629		923
…		…
644	";	938	";
645	die if $@;	939	die if $@;
646	}	940	}
647		941
648	our $override;	942	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		944
651	sub override {	945	sub override {
652	$override = 1;	946	$override = 1;
653	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
654	}	948	}
655		949
656	sub do_invoke {	950	sub do_invoke {
657	my $event = shift;	951	my $event = shift;
658	my $callbacks = shift;	952	my $callbacks = shift;
659		953
660	@invoke_results = ();	954	@INVOKE_RESULTS = ();
661		955
662	local $override;	956	local $override;
663		957
664	for (@$callbacks) {	958	for (@$callbacks) {
665	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
682		976
683	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
684		978
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		982
689	=back	983	=back
690		984
691	=cut	985	=cut
692		986
693	#############################################################################	987	#############################################################################
694	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
695		1031
696	sub reattach {	1032	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1034	my ($obj) = @_;
699		1035
…		…
720	cf::attachable->attach (	1056	cf::attachable->attach (
721	prio => -1000000,	1057	prio => -1000000,
722	on_instantiate => sub {	1058	on_instantiate => sub {
723	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
724		1060
725	$data = from_json $data;	1061	$data = decode_json $data;
726		1062
727	for (@$data) {	1063	for (@$data) {
728	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
729		1065
730	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1082	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
748		1084
749	sync_job {	1085	sync_job {
750	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
753		1090
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1095	close $fh;
759		1096
760	if (@$objs) {	1097	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1103	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
768	}	1105	}
769	} else {	1106	} else {
770	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
776	}	1113	}
777	} else {	1114	} else {
778	aio_unlink $filename;	1115	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
780	}	1117	}
781	}	1118	};
782	}	1119	}
783		1120
784	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
786		1123
…		…
798	or return;	1135	or return;
799		1136
800	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
802	or return;	1139	or return;
		1140
803	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
804	}	1143	}
805		1144
		1145	utf8::decode (my $decname = $filename);
806	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
808	return ($data, $av);	1149	($data, $av)
809	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
810		1157
811	#############################################################################	1158	#############################################################################
812	# command handling &c	1159	# command handling &c
813		1160
814	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1175	}
829		1176
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1178
832	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
833		1184
834	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
835	called.	1186	called.
836		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
837	=cut	1199	=cut
838		1200
839	sub register_extcmd {	1201	sub register_extcmd {
840	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
841		1203
842	$EXTCMD{$name} = $cb;	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
843	}	1211	}
844		1212
845	cf::player->attach (	1213	cf::player->attach (
846	on_command => sub {	1214	on_command => sub {
847	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
856	cf::override;	1224	cf::override;
857	},	1225	},
858	on_extcmd => sub {	1226	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
860		1228
861	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1230
863	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
865	if (my %reply = $cb->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
866	$pl->ext_reply ($msg->{msgid}, %reply);
867	}
868	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
869	} else {	1246	} else {
870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
871	}	1248	}
872		1249
873	cf::override;	1250	cf::override;
874	},	1251	},
875	);	1252	);
876		1253
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
912	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1259	next unless -r $path;
914	eval {	1260
915	load_extension $ext;	1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
916	1	1318	}
917	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
918	}	1324	};
919	}	1325	}
920		1326
921	#############################################################################	1327	#############################################################################
922		1328
		1329	=back
		1330
923	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
924		1332
925	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
926		1334
927	=cut	1335	=cut
…		…
932		1340
933	=head3 cf::player	1341	=head3 cf::player
934		1342
935	=over 4	1343	=over 4
936		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
937	=item cf::player::find $login	1359	=item cf::player::find $login
938		1360
939	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
940		1362
941	=cut	1363	=cut
942		1364
943	sub playerdir($) {	1365	sub playerdir($) {
944	cf::localdir	1366	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1368	}
950		1369
951	sub path($) {	1370	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1372
954	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
955	}	1374	}
956		1375
957	sub find_active($) {	1376	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1391	my $login = $_[0];
973		1392
974	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
975		1394
976	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
977	my $pl = load_pl path $login	1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
978	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
979	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
980	}	1411	}
981	}	1412	}
982	}	1413	}
983		1414
…		…
993		1424
994	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
995	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
996		1427
997	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
998	Coro::cede;	1429	cf::cede_to_tick;
999	}	1430	}
1000		1431
1001	sub new($) {	1432	sub new($) {
1002	my ($login) = @_;	1433	my ($login) = @_;
1003		1434
…		…
1009	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1010		1441
1011	$self	1442	$self
1012	}	1443	}
1013		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
1014	=item $pl->quit_character	1455	=item $pl->quit_character
1015		1456
1016	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1017	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1018		1459
1019	=cut	1460	=cut
1020		1461
1021	sub quit_character {	1462	sub quit_character {
1022	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1023		1466
1024	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1469
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
1037	IO::AIO::aio_rmtree $temp;	1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
1038	}	1501	}
1039		1502
1040	=item cf::player::list_logins	1503	=item cf::player::list_logins
1041		1504
1042	Returns am arrayref of all valid playernames in the system, can take a	1505	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1044		1507
1045	=cut	1508	=cut
1046		1509
1047	sub list_logins {	1510	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1512	or return [];
1050		1513
1051	my @logins;	1514	my @logins;
1052		1515
1053	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1054	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1055	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1056	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1057		1525
1058	utf8::decode $login;	1526	utf8::decode $login;
1059	push @logins, $login;	1527	push @logins, $login;
1060	}	1528	}
1061		1529
…		…
1069		1537
1070	=cut	1538	=cut
1071		1539
1072	sub maps($) {	1540	sub maps($) {
1073	my ($pl) = @_;	1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
1074		1544
1075	my $files = aio_readdir playerdir $pl	1545	my $files = aio_readdir playerdir $pl
1076	or return;	1546	or return;
1077		1547
1078	my @paths;	1548	my @paths;
…		…
1080	for (@$files) {	1550	for (@$files) {
1081	utf8::decode $_;	1551	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1552	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1553	next unless /^$PATH_SEP/o;
1084		1554
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1555	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1556	}
1087		1557
1088	\@paths	1558	\@paths
1089	}	1559	}
1090		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1092		1655
1093	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1094		1657
1095	=cut	1658	=cut
1096		1659
1097	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1098	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1099		1662
1100	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1101
1102	$self->send ("ext " . cf::to_json \%msg);
1103	}	1664	}
1104		1665
1105	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1106		1706
1107	=back	1707	=back
1108
1109		1708
1110	=head3 cf::map	1709	=head3 cf::map
1111		1710
1112	=over 4	1711	=over 4
1113		1712
…		…
1168	my ($self, $merge) = @_;	1767	my ($self, $merge) = @_;
1169		1768
1170	# we have to keep some variables in memory intact	1769	# we have to keep some variables in memory intact
1171	local $self->{path};	1770	local $self->{path};
1172	local $self->{load_path};	1771	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1772
1176	$self->SUPER::thawer_merge ($merge);	1773	$self->SUPER::thawer_merge ($merge);
1177	}	1774	}
1178		1775
1179	sub normalise {	1776	sub normalise {
…		…
1226	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1227	return $self;	1824	return $self;
1228	}	1825	}
1229	}	1826	}
1230		1827
1231	Carp::carp "unable to resolve path '$path' (base '$base').";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1232	()	1829	()
1233	}	1830	}
1234		1831
1235	sub init {	1832	sub init {
1236	my ($self) = @_;	1833	my ($self) = @_;
…		…
1251		1848
1252	# the original (read-only) location	1849	# the original (read-only) location
1253	sub load_path {	1850	sub load_path {
1254	my ($self) = @_;	1851	my ($self) = @_;
1255		1852
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1257	}	1854	}
1258		1855
1259	# the temporary/swap location	1856	# the temporary/swap location
1260	sub save_path {	1857	sub save_path {
1261	my ($self) = @_;	1858	my ($self) = @_;
1262		1859
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1265	}	1862	}
1266		1863
1267	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1268	sub uniq_path {	1865	sub uniq_path {
1269	my ($self) = @_;	1866	my ($self) = @_;
1270		1867
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1273	}	1870	}
1274		1871
1275	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1276	# all maps in C++...	1873	# all maps in C++...
1277	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1279		1876
1280	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1282	}	1879	}
1283		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1284	sub unlink_save {	1889	sub unlink_save {
1285	my ($self) = @_;	1890	my ($self) = @_;
1286		1891
1287	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1896
1292	sub load_header_from($) {	1897	sub load_header_from($) {
1293	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1294		1899
1295	utf8::encode $path;	1900	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1297	or return;	1902	or return;
1298		1903
1299	$self->_load_header ($path)	1904	$self->_load_header ($f)
1300	or return;	1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1301		1909
1302	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1303		1911
1304	1	1912	1
1305	}	1913	}
…		…
1344	$self->load_header_orig	1952	$self->load_header_orig
1345	or return;	1953	or return;
1346	$self->prepare_orig;	1954	$self->prepare_orig;
1347	}	1955	}
1348		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
1349	1	1963	1
1350	}	1964	}
1351		1965
1352	sub find;	1966	sub find;
1353	sub find {	1967	sub find {
1354	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1355		1969
1356	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1357		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1358	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1359		1974
1360	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1361	my $guard = cf::lock_acquire "map_find:$path";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1978
1362	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1363	or return;	1980	or return;
1364		1981
1365	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1366		1983
1367	$map->load_header	1984	$map->load_header
1368	or return;	1985	or return;
1369		1986
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1988	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1373	$map->reset;	1992	$map->reset;
1374	undef $guard;
1375	return find $path;	1993	return find $path;
1376	}	1994	}
1377		1995
1378	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1379	}	1997	}
…		…
1386	my ($self) = @_;	2004	my ($self) = @_;
1387		2005
1388	local $self->{deny_reset} = 1; # loading can take a long time	2006	local $self->{deny_reset} = 1; # loading can take a long time
1389		2007
1390	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1391	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1392		2012
		2013	return unless $self->valid;
1393	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1394		2015
1395	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1396		2017
1397	$self->alloc;	2018	$self->alloc;
1398		2019
1399	$self->pre_load;	2020	$self->pre_load;
		2021	cf::cede_to_tick;
1400		2022
1401	$self->_load_objects ($self->{load_path}, 1)	2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1402	or return;	2026	or return;
1403		2027
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};	2029	if delete $self->{load_original};
1406		2030
1407	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;	2032	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1410	$self->clear_unique_items;	2035	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1412	}	2039	}
1413	}	2040	}
1414		2041
1415	Coro::cede;	2042	$f->resolve_delayed_derefs;
1416		2043
		2044	cf::cede_to_tick;
1417	# now do the right thing for maps	2045	# now do the right thing for maps
1418	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;
1425	$self->set_darkness_map;
1426	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	2048	unless $self->difficulty;
1428	Coro::cede;	2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1429	$self->activate;	2058	$self->activate;
		2059	}
		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
		2064	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2065	}
1431		2066
1432	$self->post_load;	2067	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	2068	}
1436		2069
1437	sub customise_for {	2070	sub customise_for {
1438	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1439		2072
1440	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	2074	if $self->per_player;
1442		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1443	$self	2079	$self
1444	}	2080	}
1445		2081
1446	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1447	sub load_diag {	2083	sub load_neighbours {
1448	my ($map) = @_;	2084	my ($map) = @_;
1449		2085
1450	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1451		2087
1452	for (0 .. 3) {	2088	for (0 .. 3) {
1453	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1454	or next;	2090	or next;
1455	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1456	or next;	2092	or next;
1457	$neigh->load;	2093	$neigh->load;
1458		2094
		2095	push @neigh,
1459	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1460	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1461	}	2098	}
1462		2099
1463	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1464	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1465	or next;	2103	or next;
1466	$neigh->load;	2104	$neigh->load;
1467	}	2105	}
1468	}	2106	}
1469		2107
…		…
1474	}	2112	}
1475		2113
1476	sub do_load_sync {	2114	sub do_load_sync {
1477	my ($map) = @_;	2115	my ($map) = @_;
1478		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1479	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1480	}	2121	}
1481		2122
1482	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1483	our $MAP_PREFETCHER = undef;	2124	our $MAP_PREFETCHER = undef;
1484		2125
1485	sub find_async {	2126	sub find_async {
1486	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1487		2128
1488	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1489		2130
1490	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1491	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1492	}	2133	}
1493		2134
1494	undef $MAP_PREFETCH{$path};	2135	$MAP_PREFETCH{$path} |= $load;
		2136
1495	$MAP_PREFETCHER ||= cf::async {	2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
1496	while (%MAP_PREFETCH) {	2140	while (%MAP_PREFETCH) {
1497	for my $path (keys %MAP_PREFETCH) {	2141	while (my ($k, $v) = each %MAP_PREFETCH) {
1498	my $map = find $path	2142	if (my $map = find $k) {
1499	or next;
1500	$map->load;	2143	$map->load if $v;
		2144	}
1501		2145
1502	delete $MAP_PREFETCH{$path};	2146	delete $MAP_PREFETCH{$k};
1503	}	2147	}
1504	}	2148	}
1505	undef $MAP_PREFETCHER;	2149	undef $MAP_PREFETCHER;
1506	};	2150	};
1507	$MAP_PREFETCHER->prio (6);	2151	$MAP_PREFETCHER->prio (6);
…		…
1510	}	2154	}
1511		2155
1512	sub save {	2156	sub save {
1513	my ($self) = @_;	2157	my ($self) = @_;
1514		2158
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2160
1517	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1518		2162
1519	return unless $self->dirty;	2163	return unless $self->dirty;
1520		2164
…		…
1526	return if $self->{deny_save};	2170	return if $self->{deny_save};
1527		2171
1528	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1529		2173
1530	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1531	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1532	};	2177	};
1533		2178
1534	if ($uniq) {	2179	if ($uniq) {
1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1543	my ($self) = @_;	2188	my ($self) = @_;
1544		2189
1545	# save first because save cedes	2190	# save first because save cedes
1546	$self->save;	2191	$self->save;
1547		2192
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2194
1550	return if $self->players;	2195	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};	2197	return if $self->{deny_save};
1553		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2203	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2204	}
1557		2205
1558	sub reset_at {	2206	sub reset_at {
1559	my ($self) = @_;	2207	my ($self) = @_;
1560		2208
1561	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1564		2211
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2214
…		…
1578	my ($self) = @_;	2225	my ($self) = @_;
1579		2226
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		2228
1582	return if $self->players;	2229	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		2230
1585	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1586		2242
1587	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1588		2244
1589	$self->in_memory (cf::MAP_SWAPPED);	2245	$self->deactivate;
		2246	$_->clear_links_to ($self) for values %cf::MAP;
1590	$self->clear;	2247	$self->clear;
1591
1592	$_->clear_links_to ($self) for values %cf::MAP;
1593		2248
1594	$self->unlink_save;	2249	$self->unlink_save;
1595	$self->destroy;	2250	$self->destroy;
1596	}	2251	}
1597		2252
1598	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1599		2254
1600	sub nuke {	2255	sub nuke {
1601	my ($self) = @_;	2256	my ($self) = @_;
1602		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
1603	delete $cf::MAP{$self->path};	2261	delete $cf::MAP{$self->path};
1604		2262
1605	$self->unlink_save;	2263	$self->unlink_save;
1606		2264
1607	bless $self, "cf::map";	2265	bless $self, "cf::map";
1608	delete $self->{deny_reset};	2266	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1611	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1612		2270
1613	$cf::MAP{$self->path} = $self;	2271	$cf::MAP{$self->path} = $self;
		2272	}
1614		2273
1615	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
		2275	}
		2276
		2277	=item $maps = cf::map::tmp_maps
		2278
		2279	Returns an arrayref with all map paths of currently instantiated and saved
		2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
		2285	[
		2286	map {
		2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
		2293	}
		2294
		2295	=item $maps = cf::map::random_maps
		2296
		2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
		2299
		2300	=cut
		2301
		2302	sub random_maps() {
		2303	[
		2304	map {
		2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
1616	}	2311	}
1617		2312
1618	=item cf::map::unique_maps	2313	=item cf::map::unique_maps
1619		2314
1620	Returns an arrayref of paths of all shared maps that have	2315	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2316	instantiated unique items. May block.
1622		2317
1623	=cut	2318	=cut
1624		2319
1625	sub unique_maps() {	2320	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2321	[
1627	or return;	2322	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2323	utf8::decode $_;
1633	next if /\.pst$/;	2324	/\.map$/
1634	next unless /^$PATH_SEP/o;	2325	? normalise $_
1635		2326	: ()
1636	push @paths, cf::map::normalise $_;	2327	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2328	]
1638
1639	\@paths
1640	}	2329	}
1641		2330
1642	package cf;	2331	package cf;
1643		2332
1644	=back	2333	=back
…		…
1662	map { $_, inv_recursive_ $_->inv } @_	2351	map { $_, inv_recursive_ $_->inv } @_
1663	}	2352	}
1664		2353
1665	sub inv_recursive {	2354	sub inv_recursive {
1666	inv_recursive_ inv $_[0]	2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
1667	}	2384	}
1668		2385
1669	package cf;	2386	package cf;
1670		2387
1671	=back	2388	=back
…		…
1690		2407
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2409
1693	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1695	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1698	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1699	}	2435	}
1700		2436
1701	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1702		2438
1703	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1750	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1751		2487
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2489
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1756		2492
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2494	}
1759		2495
1760	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1762		2500
1763	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1764		2502
1765	unless ($map) {	2503	unless ($map) {
1766	# restore original map position	2504	# restore original map position
…		…
1780	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1781	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1782	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1783		2521
1784	$map->load;	2522	$map->load;
1785	$map->load_diag;	2523	$map->load_neighbours;
1786		2524
1787	return unless $self->contr->active;	2525	return unless $self->contr->active;
1788	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1790	}	2530	}
1791		2531
1792	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1793	on_logout => sub {
1794	my ($pl) = @_;
1795		2533
1796	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1797	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1798	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1799	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1800	};	2538	be called at the end of this process.
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805		2539
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)
1825
1826	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1827		2543
1828	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
		2546
		2547	# do generation counting so two concurrent goto's will be executed in-order
		2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2549
1831	$self->enter_link;	2550	$self->enter_link;
1832		2551
1833	(async {	2552	(async {
		2553	$Coro::current->{desc} = "player::goto $path $x $y";
		2554
		2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
1834	my $map = eval {	2574	my $map = eval {
1835	my $map = cf::map::find $path;	2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
		2579	$map = $check->($map) if $check && $map;
		2580	} else {
		2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
		2583
1837	$map	2584	$map
		2585	};
		2586
		2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2590	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1842	})->prio (1);	2598	})->prio (1);
1843	}	2599	}
1844		2600
1845	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1846		2602
…		…
1883	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1884	}	2640	}
1885		2641
1886	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1887		2643
1888	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2646	my $meta = "$RANDOMDIR/$md5.meta";
1891		2647
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2650	undef $fh;
1895	aio_rename "$meta~", $meta;	2651	aio_rename "$meta~", $meta;
…		…
1904		2660
1905	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1906		2662
1907	if ($exit->slaying eq "/!") {	2663	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2667	cf::sync_job { prepare_random_map $exit };
1910	}	2668	}
1911		2669
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2671	my $hp = $exit->stats->hp;
1914	my $sp = $exit->stats->sp;	2672	my $sp = $exit->stats->sp;
1915		2673
1916	$self->enter_link;	2674	$self->enter_link;
1917		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1918	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1919	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1920	unless (eval {	2684	unless (eval {
1921	$self->goto ($slaying, $hp, $sp);	2685	$self->goto ($slaying, $hp, $sp);
1922		2686
1923	1;	2687	1;
1924	}) {	2688	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2691	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2693
1930	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2695	$self->leave_link;
1932	}	2696	}
1933	})->prio (1);	2697	})->prio (1);
…		…
1946		2710
1947	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1949		2713
1950	utf8::encode $text;	2714	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2716	}
1953		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1954		2876
1955	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1956		2878
1957	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2882
1961	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2884	become reliable at some point in the future.
1963		2885
1964	=cut	2886	=cut
1965		2887
1966	sub cf::client::query {	2888	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2897	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2899
1978	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1980	}	2904	}
1981		2905
1982	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1983	on_reply => sub {	2912	on_reply => sub {
1984	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1985		2914
1986	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1987	# get handled first	2916	# get handled first
1988	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2919
1991	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2922
1993	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1994		2924
1995	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2926	if (@$queue) {
…		…
1998	} else {	2928	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2930	}
2001	}	2931	}
2002	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
2003	);	2959	);
2004		2960
2005	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
2006		2962
2007	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
2049	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
2050		3006
2051	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
2052		3008
2053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
2054		3014
2055	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
2056		3016
2057	=pod	3017	=pod
2058		3018
2059	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
2060		3020
2061	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
2062	cf::object::player player	3025	cf::object::player
2063	cf::player peaceful	3026	player
2064	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
2065		3033
2066	=cut	3034	=cut
2067		3035
2068	for (	3036	for (
2069	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
2070	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
2071	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
2072	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
2073	) {	3043	) {
2074	no strict 'refs';	3044	no strict 'refs';
…		…
2145	=back	3115	=back
2146		3116
2147	=cut	3117	=cut
2148		3118
2149	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
2150		3121
2151	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
2152		3124
2153	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
2154	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
2155	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
2156		3128
2157	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2158	using it, it should be unique.
2159		3130
2160	=over 4	3131	warn "loading facedata from $path\n";
2161		3132
2162	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
2163		3136
2164	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167		3138
2168	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2169		3141
2170	Returns a single value from the database	3142	# patch in the exptable
2171		3143	$facedata->{resource}{"res/exp_table"} = {
2172	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
2173		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	3146	};
		3147	cf::cede_to_tick;
2200		3148
2201	my $pid;
2202
2203	sub db_save() {
2204	waitpid $pid, 0 if $pid;
2205	if (0 == ($pid = fork)) {
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
2212		3151
2213	my $dirty;	3152	while (my ($face, $info) = each %$faces) {
		3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3154	cf::face::set_visibility $idx, $info->{visibility};
		3155	cf::face::set_magicmap $idx, $info->{magicmap};
		3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2214		3158
2215	sub db_sync() {	3159	cf::cede_to_tick;
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	3160	}
2254	);
2255	}
2256		3161
2257	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
2259		3172
2260	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	3300	or return;
2263		3301
2264	local $/;	3302	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2266		3304
…		…
2281	sub main {	3319	sub main {
2282	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2283	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2284	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2285	(async {	3323	(async {
2286	Event::one_event;	3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
2287	})->prio (Coro::PRIO_MAX);	3326	})->prio (Coro::PRIO_MAX);
2288	};	3327	};
2289		3328
2290	cfg_load;	3329	reload_config;
2291	db_load;	3330	db_init;
2292	load_extensions;	3331	load_extensions;
2293		3332
2294	$TICK_WATCHER->start;	3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2295	Event::loop;	3335	EV::loop;
2296	}	3336	}
2297		3337
2298	#############################################################################	3338	#############################################################################
2299	# initialisation and cleanup	3339	# initialisation and cleanup
2300		3340
2301	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2302	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2303	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2304	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2305	reentrant => 0,
2306	data => WF_AUTOCANCEL,
2307	signal => $signal,
2308	prio => 0,
2309	cb => sub {
2310	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2311	},
2312	);	3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
2313	}	3386	1
2314	}	3387	}
2315		3388
2316	sub emergency_save() {	3389	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2318		3391
…		…
2324	# and maps saved/destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2325	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2326	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2327	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2328	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2329	$pl->save;	3403	$pl->save;
2330	}	3404	}
2331	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2332		3406
2333	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2335	my $map = $cf::MAP{$path} or next;	3409	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	3410	$map->valid or next;
2337	$map->save;	3411	$map->save;
2338	}	3412	}
2339	warn "end emergency map save\n";	3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
2340	};	3418	};
2341		3419
2342	warn "leave emergency perl save\n";	3420	warn "leave emergency perl save\n";
2343	}	3421	}
2344		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2345	sub reload() {	3430	sub do_reload_perl() {
2346	# can/must only be called in main	3431	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	3433	warn "can only reload from main coroutine";
2349	return;	3434	return;
2350	}	3435	}
2351		3436
2352	warn "reloading...";	3437	warn "reloading...";
2353		3438
2354	warn "cancelling server ticker";	3439	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2358		3445
2359	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2360	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364
2365	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}
2369		3450
2370	warn "flushing outstanding aio requests";	3451	warn "flushing outstanding aio requests";
2371	for (;;) {	3452	for (;;) {
		3453	BDB::flush;
2372	IO::AIO::flush;	3454	IO::AIO::flush;
2373	Coro::cede;	3455	Coro::cede_notself;
2374	last unless IO::AIO::nreqs;	3456	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	3457	warn "iterate...";
2376	}	3458	}
		3459
		3460	++$RELOAD;
2377		3461
2378	warn "cancelling all extension coros";	3462	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	3464	%EXT_CORO = ();
2381		3465
2382	warn "removing commands";	3466	warn "removing commands";
2383	%COMMAND = ();	3467	%COMMAND = ();
2384		3468
2385	warn "removing ext commands";	3469	warn "removing ext/exti commands";
2386	%EXTCMD = ();	3470	%EXTCMD = ();
		3471	%EXTICMD = ();
2387		3472
2388	warn "unloading/nuking all extensions";	3473	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	3474	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	3475	warn "... unloading $pkg";
2391		3476
…		…
2421	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		3508
2424	warn "unloading cf.pm \"a bit\"";	3509	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2426		3512
2427	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2428	# and global variables created in xs	3514	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2430		3516
…		…
2433	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2434	require cf;	3520	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		3522
2437	warn "loading config and database again";	3523	warn "loading config and database again";
2438	cf::cfg_load;	3524	cf::reload_config;
2439	cf::db_load;
2440		3525
2441	warn "loading extensions";	3526	warn "loading extensions";
2442	cf::load_extensions;	3527	cf::load_extensions;
2443		3528
2444	warn "reattaching attachments to objects/players";	3529	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3530	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3531	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
		3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2448		3535
2449	warn "restarting server ticker";	3536	warn "leaving sync_job";
2450		3537
2451	$TICK_WATCHER->start;	3538	1
2452	};	3539	} or do {
2453
2454	if ($@) {
2455	warn $@;	3540	warn $@;
2456	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2457	exit 1;	3542	exit 1;
2458	}	3543	};
2459		3544
2460	warn "reloaded";	3545	warn "reloaded";
2461	};	3546	};
2462		3547
2463	our $RELOAD_WATCHER; # used only during reload	3548	our $RELOAD_WATCHER; # used only during reload
2464		3549
		3550	sub reload_perl() {
		3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
		3553
		3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3555	undef $RELOAD_WATCHER;
		3556	do_reload_perl;
		3557	};
		3558	}
		3559
2465	register_command "reload" => sub {	3560	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2467		3562
2468	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3564	$who->message ("reloading server.");
2470		3565	async {
2471	# doing reload synchronously and two reloads happen back-to-back,	3566	$Coro::current->{desc} = "perl_reload";
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;	3567	reload_perl;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);	3568	};
2483	}	3569	}
2484	};	3570	};
2485		3571
2486	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2487		3573
2488	my $bug_warning = 0;	3574	my $bug_warning = 0;
2489		3575
2490	$TICK_WATCHER = Event->timer (	3576	our @WAIT_FOR_TICK;
2491	reentrant => 0,	3577	our @WAIT_FOR_TICK_BEGIN;
2492	parked => 1,	3578
2493	prio => 0,	3579	sub wait_for_tick {
2494	at => $NEXT_TICK || $TICK,	3580	return unless $TICK_WATCHER->is_active;
2495	data => WF_AUTOCANCEL,	3581	return if $Coro::current == $Coro::main;
2496	cb => sub {	3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2497	if ($Coro::current != $Coro::main) {	3598	if ($Coro::current != $Coro::main) {
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3600	unless ++$bug_warning > 10;
2500	return;	3601	return;
2501	}	3602	}
2502		3603
2503	$NOW = Event::time;	3604	$NOW = $tick_start = EV::now;
2504		3605
2505	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2506	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2508		3610
2509	$WAIT_FOR_TICK->broadcast;	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3612	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3613	Coro::async_pool {
2512	Event::sweep;	3614	$Coro::current->{desc} = "runtime saver";
2513	Coro::cede_notself;
2514
2515	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#
2517
2518	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2520
2521	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;
2523	},
2524	);
2525
2526	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,
2531	fd => IO::AIO::poll_fileno,
2532	poll => 'r',
2533	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,
2536	);
2537
2538	$WRITE_RUNTIME_WATCHER = Event->timer (
2539	reentrant => 0,
2540	data => WF_AUTOCANCEL,
2541	after => 1,
2542	interval => 10,
2543	prio => 6, # keep it lowest so it acts like a watchdog
2544	cb => Coro::unblock_sub {
2545	write_runtime	3615	write_runtime
2546	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
		3617	};
2547	},	3618	}
2548	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	BDB::min_parallel 8;
		3636	BDB::max_poll_reqs $TICK * 0.1;
		3637
		3638	unless ($DB_ENV) {
		3639	$DB_ENV = BDB::db_env_create;
		3640	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3641	| BDB::LOG_AUTOREMOVE, 1);
		3642	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3643	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3644
		3645	cf::sync_job {
		3646	eval {
		3647	BDB::db_env_open
		3648	$DB_ENV,
		3649	$BDBDIR,
		3650	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3651	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3652	0666;
		3653
		3654	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3655	};
		3656
		3657	cf::cleanup "db_env_open(db): $@" if $@;
		3658	};
		3659	}
		3660
		3661	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3662	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3663	};
		3664	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3665	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3666	};
		3667	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3668	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3669	};
		3670	}
		3671
		3672	{
		3673	IO::AIO::min_parallel 8;
		3674
		3675	undef $Coro::AIO::WATCHER;
		3676	IO::AIO::max_poll_time $TICK * 0.1;
		3677	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3678	}
		3679
		3680	my $_log_backtrace;
		3681
		3682	sub _log_backtrace {
		3683	my ($msg, @addr) = @_;
		3684
		3685	$msg =~ s/\n//;
		3686
		3687	# limit the # of concurrent backtraces
		3688	if ($_log_backtrace < 2) {
		3689	++$_log_backtrace;
		3690	async {
		3691	$Coro::current->{desc} = "abt $msg";
		3692
		3693	my @bt = fork_call {
		3694	@addr = map { sprintf "%x", $_ } @addr;
		3695	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3696	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3697	or die "addr2line: $!";
		3698
		3699	my @funcs;
		3700	my @res = <$fh>;
		3701	chomp for @res;
		3702	while (@res) {
		3703	my ($func, $line) = splice @res, 0, 2, ();
		3704	push @funcs, "[$func] $line";
		3705	}
		3706
		3707	@funcs
		3708	};
		3709
		3710	LOG llevInfo, "[ABT] $msg\n";
		3711	LOG llevInfo, "[ABT] $_\n" for @bt;
		3712	--$_log_backtrace;
		3713	};
		3714	} else {
		3715	LOG llevInfo, "[ABT] $msg\n";
		3716	LOG llevInfo, "[ABT] [suppressed]\n";
		3717	}
		3718	}
		3719
		3720	# load additional modules
		3721	use cf::pod;
2549		3722
2550	END { cf::emergency_save }	3723	END { cf::emergency_save }
2551		3724
2552	1	3725	1
2553		3726

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