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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.403 by root, Mon Dec 17 07:09:18 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 ();
20	use BDB ();	28	use BDB ();
21	use Data::Dumper;	29	use Data::Dumper;
22	use Digest::MD5;	30	use Digest::MD5;
23	use Fcntl;	31	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
26	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
27		37
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
29		39	#
30	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
31		43
32	# 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?
33	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
34		46
35	$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
36		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
37	our %COMMAND = ();	51	our %COMMAND = ();
38	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
39		53
40	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
44		59
		60	our $RELOAD; # number of reloads so far
45	our @EVENT;	61	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		62
48	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(!)
49	our $TICK_WATCHER;	76	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	79	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		81
56	our $BDB_POLL_WATCHER;	82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	86	our $DB_ENV;
58		87
59	our %CFG;	88	our %CFG;
60		89
61	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
63		93
64	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		97
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $tick_start; # for load detecting purposes
		104
76	binmode STDOUT;	105	binmode STDOUT;
77	binmode STDERR;	106	binmode STDERR;
78		107
79	# read virtual server time, if available	108	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
84	}	113	}
85		114
86	mkdir cf::localdir;	115	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		117
93	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
94		119
95	sub cf::map::normalise;	120	sub cf::map::normalise;
96		121
…		…
107	=item $cf::RUNTIME	132	=item $cf::RUNTIME
108		133
109	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
110	every server tick.	135	every server tick.
111		136
112	=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
113		140
114	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		145
117	=item $cf::NOW	146	=item $cf::NOW
118		147
119	The time of the last (current) server tick.	148	The time of the last (current) server tick.
120		149
121	=item $cf::TICK	150	=item $cf::TICK
122		151
123	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
124		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
125	=item %cf::CFG	164	=item %cf::CFG
126		165
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	167	from wherever your confdir points to.
129		168
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		170
132	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
133	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
134	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.
135	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.
136		180
137	=back	181	=back
138		182
139	=cut	183	=cut
140		184
141	BEGIN {	185	BEGIN {
142	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	187	my $msg = join "", @_;
144	utf8::encode $msg;
145		188
146	$msg .= "\n"	189	$msg .= "\n"
147	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
148		193
149	LOG llevError, $msg;	194	LOG llevError, $msg;
150	};	195	};
151	}	196	}
152		197
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@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';
158	@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)
159		205
160	# 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
161	# within the Safe compartment.	207	# within the Safe compartment.
162	for my $pkg (qw(	208	for my $pkg (qw(
163	cf::global cf::attachable	209	cf::global cf::attachable
…		…
168	)) {	214	)) {
169	no strict 'refs';	215	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	217	}
172		218
173	$Event::DIED = sub {	219	$EV::DIED = sub {
174	warn "error in event callback: @_";	220	warn "error in event callback: @_";
175	};	221	};
		222
		223	#############################################################################
176		224
177	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
178		226
179	=over 4	227	=over 4
180		228
…		…
199	$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;
200	$d	248	$d
201	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
202	}	250	}
203		251
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
207		253
208	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
209		255
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
218		257
219	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
220		259
221	=cut	260	=cut
222		261
223	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
225	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
226	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
227		266
228	=item cf::lock_wait $string	267	=item cf::lock_wait $string
229		268
230	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
231		270
…		…
234	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
235	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,
236	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
237	returned.	276	returned.
238		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
239	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
240	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
241		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
242	=cut	288	=cut
243		289
244	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
245		292
246	sub lock_wait($) {	293	sub lock_wait($) {
247	my ($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#
248		300
249	# wait for lock, if any	301	# wait for lock, if any
250	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;	304	Coro::schedule;
…		…
258		310
259	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
260	lock_wait $key;	312	lock_wait $key;
261		313
262	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
263		316
264	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
265	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
267	}	321	}
268	}	322	}
269		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
270	sub freeze_mainloop {	330	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
272		332
273	my $guard = Coro::guard {	333	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	334	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	335	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
279	$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	$sig->wait;
280	}	411	}
281		412
282	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
283		414
284	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		420
290	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
291		422
292	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
293		424
294	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
297		429
298	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
301	fast or be very important.	433	fast or be very important.
…		…
304		436
305	sub sync_job(&) {	437	sub sync_job(&) {
306	my ($job) = @_;	438	my ($job) = @_;
307		439
308	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
309	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
311		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
312	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	449	# (but this is cancel-safe)
314	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
315		451
316	my $busy = 1;	452	my $busy = 1;
317	my @res;	453	my @res;
318		454
319	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	457	@res = eval { $job->() };
321	warn $@ if $@;	458	warn $@ if $@;
322	undef $busy;	459	undef $busy;
323	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
324		461
325	while ($busy) {	462	while ($busy) {
326	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
327	}	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
328		476
329	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
330	} else {	478	} else {
331	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
332		480
…		…
352	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
353		501
354	$coro	502	$coro
355	}	503	}
356		504
357	sub write_runtime {	505	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		506
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
361	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.
362		511
363	my $value = $cf::RUNTIME + 90 + 10;	512	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		513
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	514	sub fork_call(&@) {
368	and return;	515	my ($cb, @args) = @_;
369		516
370	# always fsync - this file is important	517	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	518	# otherwise perl prematurely frees the stuff :/
372	and return;	519	# TODO: investigate and fix (likely this will be rather laborious)
373		520
374	close $fh	521	my @res = Coro::Util::fork_eval {
375	or return;	522	reset_signals;
		523	&$cb
		524	}, @args;
376		525
377	aio_rename "$runtime~", $runtime	526	wantarray ? @res : $res[-1]
378	and return;	527	}
379		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($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
380	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		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 });
381	}	665	}
382		666
383	=back	667	=back
384		668
385	=cut	669	=cut
…		…
392	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")
393	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
394		678
395	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>
396	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
397	crossfire+).	681	Deliantra).
398		682
399	=over 4	683	=over 4
400		684
401	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
402		686
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
566		850
567	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		855
572	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	857	my $pkg = shift @arg;
574		858
575	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
605	}	889	}
606		890
607	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
608	} else {	892	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	894	}
611		895
612	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
613	}	897	}
614		898
…		…
616	if (ref $_[0]) {	900	if (ref $_[0]) {
617	_object_attach @_;	901	_object_attach @_;
618	} else {	902	} else {
619	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
620	}	904	}
		905	_recalc_want;
621	};	906	};
622		907
623	# all those should be optimised	908	# all those should be optimised
624	sub cf::attachable::detach {	909	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
629	reattach ($obj);	914	reattach ($obj);
630	} else {	915	} else {
631	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
632	}	917	}
		918	_recalc_want;
633	};	919	};
634		920
635	sub cf::attachable::attached {	921	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
637		923
…		…
652	";	938	";
653	die if $@;	939	die if $@;
654	}	940	}
655		941
656	our $override;	942	our $override;
657	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?
658		944
659	sub override {	945	sub override {
660	$override = 1;	946	$override = 1;
661	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
662	}	948	}
663		949
664	sub do_invoke {	950	sub do_invoke {
665	my $event = shift;	951	my $event = shift;
666	my $callbacks = shift;	952	my $callbacks = shift;
667		953
668	@invoke_results = ();	954	@INVOKE_RESULTS = ();
669		955
670	local $override;	956	local $override;
671		957
672	for (@$callbacks) {	958	for (@$callbacks) {
673	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
690		976
691	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
692		978
693	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
694	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
695	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		982
697	=back	983	=back
698		984
699	=cut	985	=cut
700		986
701	#############################################################################	987	#############################################################################
702	# 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, $ob2
		1030	}
703		1031
704	sub reattach {	1032	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1034	my ($obj) = @_;
707		1035
…		…
728	cf::attachable->attach (	1056	cf::attachable->attach (
729	prio => -1000000,	1057	prio => -1000000,
730	on_instantiate => sub {	1058	on_instantiate => sub {
731	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
732		1060
733	$data = from_json $data;	1061	$data = decode_json $data;
734		1062
735	for (@$data) {	1063	for (@$data) {
736	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
737		1065
738	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1082	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
756		1084
757	sync_job {	1085	sync_job {
758	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
761		1090
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1094	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1095	close $fh;
767		1096
768	if (@$objs) {	1097	if (@$objs) {
769	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) {
770	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1102	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1103	close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
776	}	1105	}
…		…
784	}	1113	}
785	} else {	1114	} else {
786	aio_unlink $filename;	1115	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
788	}	1117	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1118	};
796	}	1119	}
797		1120
798	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
800		1123
…		…
805		1128
806	sub object_thawer_load {	1129	sub object_thawer_load {
807	my ($filename) = @_;	1130	my ($filename) = @_;
808		1131
809	my ($data, $av);	1132	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1133
814	(aio_load $filename, $data) >= 0	1134	(aio_load $filename, $data) >= 0
815	or return;	1135	or return;
816		1136
817	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
819	or return;	1139	or return;
		1140
820	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
821	}	1143	}
822		1144
		1145	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
825	return ($data, $av);	1149	($data, $av)
826	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
827		1157
828	#############################################################################	1158	#############################################################################
829	# command handling &c	1159	# command handling &c
830		1160
831	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1175	}
846		1176
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1178
849	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.
850		1184
851	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
852	called.	1186	called.
853		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
854	=cut	1199	=cut
855		1200
856	sub register_extcmd {	1201	sub register_extcmd {
857	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
858		1203
859	$EXTCMD{$name} = $cb;	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
860	}	1211	}
861		1212
862	cf::player->attach (	1213	cf::player->attach (
863	on_command => sub {	1214	on_command => sub {
864	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1224	cf::override;
874	},	1225	},
875	on_extcmd => sub {	1226	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
877		1228
878	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1230
880	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
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
886	} else {	1246	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1248	}
889		1249
890	cf::override;	1250	cf::override;
891	},	1251	},
892	);	1252	);
893		1253
894	sub load_extension {
895	my ($path) = @_;
896
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
898	my $base = $1;
899	my $pkg = $1;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}
922	die $@;
923	}
924
925	push @EXTS, $pkg;
926	}
927
928	sub load_extensions {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
929	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1259	next unless -r $path;
931	eval {	1260
932	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	$progress = 1;
933	1	1318	}
934	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
935	}	1324	};
936	}	1325	}
937		1326
938	#############################################################################	1327	#############################################################################
939		1328
		1329	=back
		1330
940	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
941		1332
942	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
943		1334
944	=cut	1335	=cut
…		…
949		1340
950	=head3 cf::player	1341	=head3 cf::player
951		1342
952	=over 4	1343	=over 4
953		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
954	=item cf::player::find $login	1359	=item cf::player::find $login
955		1360
956	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
957		1362
958	=cut	1363	=cut
959		1364
960	sub playerdir($) {	1365	sub playerdir($) {
961	cf::localdir	1366	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1368	}
967		1369
968	sub path($) {	1370	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1372
971	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
972	}	1374	}
973		1375
974	sub find_active($) {	1376	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1391	my $login = $_[0];
990		1392
991	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
992		1394
993	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
994	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
995	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;
996	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
997	}	1411	}
998	}	1412	}
999	}	1413	}
1000		1414
…		…
1010		1424
1011	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
1013		1427
1014	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
1015	Coro::cede;	1429	cf::cede_to_tick;
1016	}	1430	}
1017		1431
1018	sub new($) {	1432	sub new($) {
1019	my ($login) = @_;	1433	my ($login) = @_;
1020		1434
…		…
1026	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1027		1441
1028	$self	1442	$self
1029	}	1443	}
1030		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
1031	=item $pl->quit_character	1455	=item $pl->quit_character
1032		1456
1033	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1035		1459
1036	=cut	1460	=cut
1037		1461
1038	sub quit_character {	1462	sub quit_character {
1039	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1040		1466
1041	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1042	$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
1043		1469
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1053	$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
1054	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;
1055	}	1501	}
1056		1502
1057	=item cf::player::list_logins	1503	=item cf::player::list_logins
1058		1504
1059	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
1060	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1061		1507
1062	=cut	1508	=cut
1063		1509
1064	sub list_logins {	1510	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1512	or return [];
1067		1513
1068	my @logins;	1514	my @logins;
1069		1515
1070	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") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1074		1525
1075	utf8::decode $login;	1526	utf8::decode $login;
1076	push @logins, $login;	1527	push @logins, $login;
1077	}	1528	}
1078		1529
…		…
1105	}	1556	}
1106		1557
1107	\@paths	1558	\@paths
1108	}	1559	}
1109		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
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1111		1655
1112	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1113		1657
1114	=cut	1658	=cut
1115		1659
1116	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1118		1662
1119	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1664	}
1123		1665
1124	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	$match
		1705	}
1125		1706
1126	=back	1707	=back
1127
1128		1708
1129	=head3 cf::map	1709	=head3 cf::map
1130		1710
1131	=over 4	1711	=over 4
1132		1712
…		…
1187	my ($self, $merge) = @_;	1767	my ($self, $merge) = @_;
1188		1768
1189	# we have to keep some variables in memory intact	1769	# we have to keep some variables in memory intact
1190	local $self->{path};	1770	local $self->{path};
1191	local $self->{load_path};	1771	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1772
1195	$self->SUPER::thawer_merge ($merge);	1773	$self->SUPER::thawer_merge ($merge);
1196	}	1774	}
1197		1775
1198	sub normalise {	1776	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1246	return $self;	1824	return $self;
1247	}	1825	}
1248	}	1826	}
1249		1827
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1829	()
1252	}	1830	}
1253		1831
1254	sub init {	1832	sub init {
1255	my ($self) = @_;	1833	my ($self) = @_;
…		…
1270		1848
1271	# the original (read-only) location	1849	# the original (read-only) location
1272	sub load_path {	1850	sub load_path {
1273	my ($self) = @_;	1851	my ($self) = @_;
1274		1852
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1276	}	1854	}
1277		1855
1278	# the temporary/swap location	1856	# the temporary/swap location
1279	sub save_path {	1857	sub save_path {
1280	my ($self) = @_;	1858	my ($self) = @_;
1281		1859
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1284	}	1862	}
1285		1863
1286	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1287	sub uniq_path {	1865	sub uniq_path {
1288	my ($self) = @_;	1866	my ($self) = @_;
1289		1867
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1292	}	1870	}
1293		1871
1294	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1295	# all maps in C++...	1873	# all maps in C++...
1296	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1298		1876
1299	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1301	}	1879	}
1302		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1303	sub unlink_save {	1889	sub unlink_save {
1304	my ($self) = @_;	1890	my ($self) = @_;
1305		1891
1306	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1895	}
1315		1896
1316	sub load_header_from($) {	1897	sub load_header_from($) {
1317	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1318		1899
1319	utf8::encode $path;	1900	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1325		1909
1326	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1327		1911
1328	1	1912	1
1329	}	1913	}
…		…
1368	$self->load_header_orig	1952	$self->load_header_orig
1369	or return;	1953	or return;
1370	$self->prepare_orig;	1954	$self->prepare_orig;
1371	}	1955	}
1372		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 $self->default_region;
		1962
1373	1	1963	1
1374	}	1964	}
1375		1965
1376	sub find;	1966	sub find;
1377	sub find {	1967	sub find {
1378	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1379		1969
1380	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1381		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1383		1974
1384	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1385	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
1386	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1387	or return;	1980	or return;
1388		1981
1389	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1390		1983
1391	$map->load_header	1984	$map->load_header
1392	or return;	1985	or return;
1393		1986
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1988	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1397	$map->reset;	1992	$map->reset;
1398	undef $guard;
1399	return find $path;	1993	return find $path;
1400	}	1994	}
1401		1995
1402	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1403	}	1997	}
…		…
1410	my ($self) = @_;	2004	my ($self) = @_;
1411		2005
1412	local $self->{deny_reset} = 1; # loading can take a long time	2006	local $self->{deny_reset} = 1; # loading can take a long time
1413		2007
1414	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1416		2012
		2013	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2015
1419	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1420		2017
1421	$self->alloc;	2018	$self->alloc;
1422		2019
1423	$self->pre_load;	2020	$self->pre_load;
		2021	cf::cede_to_tick;
1424		2022
1425	$self->_load_objects ($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)
1426	or return;	2026	or return;
1427		2027
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1429	if delete $self->{load_original};	2029	if delete $self->{load_original};
1430		2030
1431	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2032	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2035	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1436	}	2039	}
1437	}	2040	}
1438		2041
1439	Coro::cede;	2042	$f->resolve_delayed_derefs;
1440		2043
		2044	cf::cede_to_tick;
1441	# now do the right thing for maps	2045	# now do the right thing for maps
1442	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2048	unless $self->difficulty;
1452	Coro::cede;	2049	cf::cede_to_tick;
		2050
		2051	unless ($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;
1453	$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);
1454	}	2065	}
1455		2066
1456	$self->post_load;	2067	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2068	}
1460		2069
1461	sub customise_for {	2070	sub customise_for {
1462	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1463		2072
1464	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2074	if $self->per_player;
1466		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1467	$self	2079	$self
1468	}	2080	}
1469		2081
1470	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2083	sub load_neighbours {
1472	my ($map) = @_;	2084	my ($map) = @_;
1473		2085
1474	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1475		2087
1476	for (0 .. 3) {	2088	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1478	or next;	2090	or next;
1479	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1480	or next;	2092	or next;
1481	$neigh->load;	2093	$neigh->load;
1482		2094
		2095	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2098	}
1486		2099
1487	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1489	or next;	2103	or next;
1490	$neigh->load;	2104	$neigh->load;
1491	}	2105	}
1492	}	2106	}
1493		2107
…		…
1498	}	2112	}
1499		2113
1500	sub do_load_sync {	2114	sub do_load_sync {
1501	my ($map) = @_;	2115	my ($map) = @_;
1502		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1503	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1504	}	2121	}
1505		2122
1506	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2124	our $MAP_PREFETCHER = undef;
1508		2125
1509	sub find_async {	2126	sub find_async {
1510	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1511		2128
1512	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1513		2130
1514	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1516	}	2133	}
1517		2134
1518	undef $MAP_PREFETCH{$path};	2135	$MAP_PREFETCH{$path} |= $load;
		2136
1519	$MAP_PREFETCHER ||= cf::async {	2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
1520	while (%MAP_PREFETCH) {	2140	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2141	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2142	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2143	$map->load if $v;
		2144	}
1525		2145
1526	delete $MAP_PREFETCH{$path};	2146	delete $MAP_PREFETCH{$k};
1527	}	2147	}
1528	}	2148	}
1529	undef $MAP_PREFETCHER;	2149	undef $MAP_PREFETCHER;
1530	};	2150	};
1531	$MAP_PREFETCHER->prio (6);	2151	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2154	}
1535		2155
1536	sub save {	2156	sub save {
1537	my ($self) = @_;	2157	my ($self) = @_;
1538		2158
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2160
1541	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1542		2162
1543	return unless $self->dirty;	2163	return unless $self->dirty;
1544		2164
…		…
1550	return if $self->{deny_save};	2170	return if $self->{deny_save};
1551		2171
1552	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1553		2173
1554	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1556	};	2177	};
1557		2178
1558	if ($uniq) {	2179	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1567	my ($self) = @_;	2188	my ($self) = @_;
1568		2189
1569	# save first because save cedes	2190	# save first because save cedes
1570	$self->save;	2191	$self->save;
1571		2192
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2194
1574	return if $self->players;	2195	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1576	return if $self->{deny_save};	2197	return if $self->{deny_save};
1577		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2203	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2204	}
1581		2205
1582	sub reset_at {	2206	sub reset_at {
1583	my ($self) = @_;	2207	my ($self) = @_;
1584		2208
1585	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1588		2211
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2214
…		…
1602	my ($self) = @_;	2225	my ($self) = @_;
1603		2226
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2228
1606	return if $self->players;	2229	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2230
1609	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	}
1610		2242
1611	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1612		2244
1613	$self->in_memory (cf::MAP_SWAPPED);	2245	$self->deactivate;
		2246	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2247	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2248
1618	$self->unlink_save;	2249	$self->unlink_save;
1619	$self->destroy;	2250	$self->destroy;
1620	}	2251	}
1621		2252
1622	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1623		2254
1624	sub nuke {	2255	sub nuke {
1625	my ($self) = @_;	2256	my ($self) = @_;
1626		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
1627	delete $cf::MAP{$self->path};	2261	delete $cf::MAP{$self->path};
1628		2262
1629	$self->unlink_save;	2263	$self->unlink_save;
1630		2264
1631	bless $self, "cf::map";	2265	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2266	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2270
1637	$cf::MAP{$self->path} = $self;	2271	$cf::MAP{$self->path} = $self;
		2272	}
1638		2273
1639	$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	]
1640	}	2311	}
1641		2312
1642	=item cf::map::unique_maps	2313	=item cf::map::unique_maps
1643		2314
1644	Returns an arrayref of paths of all shared maps that have	2315	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2316	instantiated unique items. May block.
1646		2317
1647	=cut	2318	=cut
1648		2319
1649	sub unique_maps() {	2320	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2321	[
1651	or return;	2322	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2323	utf8::decode $_;
1657	next if /\.pst$/;	2324	/\.map$/
1658	next unless /^$PATH_SEP/o;	2325	? normalise $_
1659		2326	: ()
1660	push @paths, cf::map::normalise $_;	2327	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2328	]
1662
1663	\@paths
1664	}	2329	}
1665		2330
1666	package cf;	2331	package cf;
1667		2332
1668	=back	2333	=back
…		…
1686	map { $_, inv_recursive_ $_->inv } @_	2351	map { $_, inv_recursive_ $_->inv } @_
1687	}	2352	}
1688		2353
1689	sub inv_recursive {	2354	sub inv_recursive {
1690	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	}
1691	}	2384	}
1692		2385
1693	package cf;	2386	package cf;
1694		2387
1695	=back	2388	=back
…		…
1714		2407
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2409
1717	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1719	} 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 {
1720	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1722	}	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 (@_);
1723	}	2435	}
1724		2436
1725	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1726		2438
1727	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1774	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1775		2487
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2489
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1780		2492
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2494	}
1783		2495
1784	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1786		2500
1787	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1788		2502
1789	unless ($map) {	2503	unless ($map) {
1790	# restore original map position	2504	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1807		2521
1808	$map->load;	2522	$map->load;
1809	$map->load_diag;	2523	$map->load_neighbours;
1810		2524
1811	return unless $self->contr->active;	2525	return unless $self->contr->active;
1812	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1814	}	2530	}
1815		2531
1816	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2533
1820	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1824	};	2538	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2539
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1851		2543
1852	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1853	my ($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;
1854		2549
1855	$self->enter_link;	2550	$self->enter_link;
1856		2551
1857	(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
1858	my $map = eval {	2574	my $map = eval {
1859	my $map = cf::map::find $path;	2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1860	$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
1861	$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 $@;
1862	} or	2590	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1866	})->prio (1);	2598	})->prio (1);
1867	}	2599	}
1868		2600
1869	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1870		2602
…		…
1907	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1908	}	2640	}
1909		2641
1910	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1911		2643
1912	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2646	my $meta = "$RANDOMDIR/$md5.meta";
1915		2647
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2650	undef $fh;
1919	aio_rename "$meta~", $meta;	2651	aio_rename "$meta~", $meta;
…		…
1928		2660
1929	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1930		2662
1931	if ($exit->slaying eq "/!") {	2663	if ($exit->slaying eq "/!") {
1932	#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
1933	cf::sync_job { prepare_random_map $exit };	2667	cf::sync_job { prepare_random_map $exit };
1934	}	2668	}
1935		2669
1936	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;
1937	my $hp = $exit->stats->hp;	2671	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;	2672	my $sp = $exit->stats->sp;
1939		2673
1940	$self->enter_link;	2674	$self->enter_link;
1941		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
1942	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1943	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1944	unless (eval {	2684	unless (eval {
1945	$self->goto ($slaying, $hp, $sp);	2685	$self->goto ($slaying, $hp, $sp);
1946		2686
1947	1;	2687	1;
1948	}) {	2688	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "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. "
1951	. "Please report this to the dungeon master!",	2691	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2693
1954	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2695	$self->leave_link;
1956	}	2696	}
1957	})->prio (1);	2697	})->prio (1);
…		…
1970		2710
1971	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1973		2713
1974	utf8::encode $text;	2714	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2716	}
1977		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	}
1978		2876
1979	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1980		2878
1981	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1982	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>,
1983	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>.
1984		2882
1985	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
1986	reliable at some point in the future.	2884	become reliable at some point in the future.
1987		2885
1988	=cut	2886	=cut
1989		2887
1990	sub cf::client::query {	2888	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2897	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2899
2002	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
2004	}	2904	}
2005		2905
2006	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
2007	on_reply => sub {	2912	on_reply => sub {
2008	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
2009		2914
2010	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
2011	# get handled first	2916	# get handled first
…		…
2023	} else {	2928	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2930	}
2026	}	2931	}
2027	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($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	},
2028	);	2959	);
2029		2960
2030	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
2031		2962
2032	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
2075		3006
2076	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
2077		3008
2078	$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	));
2079		3014
2080	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
2081		3016
2082	=pod	3017	=pod
2083		3018
2084	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
2085		3020
2086	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
2087	cf::object::player player	3025	cf::object::player
2088	cf::player peaceful	3026	player
2089	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
2090		3033
2091	=cut	3034	=cut
2092		3035
2093	for (	3036	for (
2094	["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)],
2095	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
2098	) {	3043	) {
2099	no strict 'refs';	3044	no strict 'refs';
…		…
2170	=back	3115	=back
2171		3116
2172	=cut	3117	=cut
2173		3118
2174	#############################################################################	3119	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3120	# the server's init and main functions
2284		3121
2285	sub load_resources {	3122	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3123	my ($path) = @_;
		3124
		3125	# HACK to clear player env face cache, we need some signal framework
		3126	# for this (global event?)
		3127	%ext::player_env::MUSIC_FACE_CACHE = ();
		3128
		3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3130
		3131	warn "loading facedata from $path\n";
		3132
		3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
		3136
		3137	$facedata = Coro::Storable::thaw $facedata;
		3138
		3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3141
		3142	# patch in the exptable
		3143	$facedata->{resource}{"res/exp_table"} = {
		3144	type => FT_RSRC,
		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3146	};
		3147	cf::cede_to_tick;
		3148
		3149	{
		3150	my $faces = $facedata->{faceinfo};
		3151
		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};
		3158
		3159	cf::cede_to_tick;
		3160	}
		3161
		3162	while (my ($face, $info) = each %$faces) {
		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	}
		3172
		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"
2287	or die "unable to load regions file\n";#d#	3254	or die "unable to load regions file\n";
2288	}
2289		3255
2290	sub cfg_load {	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 {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3300	or return;
2293		3301
2294	local $/;	3302	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2296		3304
…		…
2306	};	3314	};
2307	warn $@ if $@;	3315	warn $@ if $@;
2308	}	3316	}
2309	}	3317	}
2310		3318
2311	sub init {
2312	load_resources;
2313	}
2314
2315	sub main {	3319	sub main {
2316	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2318	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#
2319	(async {	3323	(async {
2320	Event::one_event;	3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3326	})->prio (Coro::PRIO_MAX);
2322	};	3327	};
2323		3328
2324	cfg_load;	3329	reload_config;
2325	db_load;	3330	db_init;
2326	load_extensions;	3331	load_extensions;
2327		3332
2328	$TICK_WATCHER->start;	3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2329	Event::loop;	3335	EV::loop;
2330	}	3336	}
2331		3337
2332	#############################################################################	3338	#############################################################################
2333	# initialisation and cleanup	3339	# initialisation and cleanup
2334		3340
2335	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2336	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2345	},
2346	);	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
2347	}	3386	1
2348	}	3387	}
2349		3388
2350	sub emergency_save() {	3389	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2352		3391
…		…
2358	# and maps saved/destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2360	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3403	$pl->save;
2364	}	3404	}
2365	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2366		3406
2367	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2369	my $map = $cf::MAP{$path} or next;	3409	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3410	$map->valid or next;
2371	$map->save;	3411	$map->save;
2372	}	3412	}
2373	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";
2374	};	3418	};
2375		3419
2376	warn "leave emergency perl save\n";	3420	warn "leave emergency perl save\n";
2377	}	3421	}
2378		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2379	sub reload() {	3430	sub do_reload_perl() {
2380	# can/must only be called in main	3431	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3433	warn "can only reload from main coroutine";
2383	return;	3434	return;
2384	}	3435	}
2385		3436
2386	warn "reloading...";	3437	warn "reloading...";
2387		3438
2388	warn "cancelling server ticker";	3439	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2392		3445
2393	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2394	# 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
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403		3450
2404	warn "flushing outstanding aio requests";	3451	warn "flushing outstanding aio requests";
2405	for (;;) {	3452	for (;;) {
		3453	BDB::flush;
2406	IO::AIO::flush;	3454	IO::AIO::flush;
2407	Coro::cede;	3455	Coro::cede_notself;
2408	last unless IO::AIO::nreqs;	3456	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	3457	warn "iterate...";
2410	}	3458	}
		3459
		3460	++$RELOAD;
2411		3461
2412	warn "cancelling all extension coros";	3462	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	3464	%EXT_CORO = ();
2415		3465
2416	warn "removing commands";	3466	warn "removing commands";
2417	%COMMAND = ();	3467	%COMMAND = ();
2418		3468
2419	warn "removing ext commands";	3469	warn "removing ext/exti commands";
2420	%EXTCMD = ();	3470	%EXTCMD = ();
		3471	%EXTICMD = ();
2421		3472
2422	warn "unloading/nuking all extensions";	3473	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	3474	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	3475	warn "... unloading $pkg";
2425		3476
…		…
2455	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2456	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);
2457		3508
2458	warn "unloading cf.pm \"a bit\"";	3509	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2460		3512
2461	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3514	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2464		3516
…		…
2467	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2468	require cf;	3520	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3522
2471	warn "loading config and database again";	3523	warn "loading config and database again";
2472	cf::cfg_load;	3524	cf::reload_config;
2473	cf::db_load;
2474		3525
2475	warn "loading extensions";	3526	warn "loading extensions";
2476	cf::load_extensions;	3527	cf::load_extensions;
2477		3528
2478	warn "reattaching attachments to objects/players";	3529	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3530	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3531	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
		3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2482		3535
2483	warn "loading reloadable resources";	3536	warn "leaving sync_job";
2484	load_resources;
2485		3537
2486	warn "restarting server ticker";	3538	1
2487		3539	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	3540	warn $@;
2493	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2494	exit 1;	3542	exit 1;
2495	}	3543	};
2496		3544
2497	warn "reloaded";	3545	warn "reloaded";
2498	};	3546	};
2499		3547
2500	our $RELOAD_WATCHER; # used only during reload	3548	our $RELOAD_WATCHER; # used only during reload
2501		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
2502	register_command "reload" => sub {	3560	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2504		3562
2505	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3564	$who->message ("reloading server.");
2507		3565	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3566	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3567	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3568	};
2520	}	3569	}
2521	};	3570	};
2522		3571
2523	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2524		3573
2525	my $bug_warning = 0;	3574	my $bug_warning = 0;
2526		3575
2527	$TICK_WATCHER = Event->timer (	3576	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3577	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3578
2530	prio => 0,	3579	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3580	return unless $TICK_WATCHER->is_active;
2532	data => WF_AUTOCANCEL,	3581	return if $Coro::current == $Coro::main;
2533	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 {
2534	if ($Coro::current != $Coro::main) {	3598	if ($Coro::current != $Coro::main) {
2535	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"
2536	unless ++$bug_warning > 10;	3600	unless ++$bug_warning > 10;
2537	return;	3601	return;
2538	}	3602	}
2539		3603
2540	$NOW = Event::time;	3604	$NOW = $tick_start = EV::now;
2541		3605
2542	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2543	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2545		3610
2546	$WAIT_FOR_TICK->broadcast;	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2548		3613	Coro::async_pool {
2549	Event::sweep;	3614	$Coro::current->{desc} = "runtime saver";
2550	Coro::cede_notself;	3615	write_runtime
		3616	or warn "ERROR: unable to write runtime file: $!";
2551		3617	};
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3618	}
2561	);	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);
2562		3633
2563	{	3634	{
2564	BDB::max_poll_time $TICK * 0.1;	3635	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3636
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3637	BDB::min_parallel 8;
2574		3638	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3639	$Coro::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3640
2590	unless ($DB_ENV) {	3641	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3642	$DB_ENV = BDB::db_env_create;
		3643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3644	| BDB::LOG_AUTOREMOVE, 1);
		3645	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3646	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3647
2593	cf::sync_job {	3648	cf::sync_job {
		3649	eval {
2594	BDB::db_env_open	3650	BDB::db_env_open
2595	$DB_ENV,	3651	$DB_ENV,
2596	$BDB_ENV_DIR,	3652	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3653	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3654	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3655	0666;
2600		3656
2601	cf::cleanup "$!" if $!;	3657	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3658	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3659
2604	$DB_ENV->set_lk_detect;	3660	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3661	};
2606	}	3662	}
		3663
		3664	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3665	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3666	};
		3667	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3668	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3669	};
		3670	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3671	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3672	};
2607	}	3673	}
2608		3674
2609	{	3675	{
		3676	# configure IO::AIO
		3677
2610	IO::AIO::min_parallel 8;	3678	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3679	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3680	$Coro::AIO::WATCHER->priority (1);
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3681	}
2623		3682
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3683	my $_log_backtrace;
2625	reentrant => 0,	3684
2626	data => WF_AUTOCANCEL,	3685	sub _log_backtrace {
2627	after => 1,	3686	my ($msg, @addr) = @_;
2628	interval => 10,	3687
2629	prio => 6, # keep it lowest so it acts like a watchdog	3688	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3689
2631	write_runtime	3690	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3691	if ($_log_backtrace < 2) {
		3692	++$_log_backtrace;
		3693	async {
		3694	$Coro::current->{desc} = "abt $msg";
		3695
		3696	my @bt = fork_call {
		3697	@addr = map { sprintf "%x", $_ } @addr;
		3698	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3699	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3700	or die "addr2line: $!";
		3701
		3702	my @funcs;
		3703	my @res = <$fh>;
		3704	chomp for @res;
		3705	while (@res) {
		3706	my ($func, $line) = splice @res, 0, 2, ();
		3707	push @funcs, "[$func] $line";
		3708	}
		3709
		3710	@funcs
		3711	};
		3712
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] $_\n" for @bt;
		3715	--$_log_backtrace;
		3716	};
		3717	} else {
		3718	LOG llevInfo, "[ABT] $msg\n";
		3719	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3720	}
2634	);	3721	}
		3722
		3723	# load additional modules
		3724	use cf::pod;
2635		3725
2636	END { cf::emergency_save }	3726	END { cf::emergency_save }
2637		3727
2638	1	3728	1
2639		3729

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