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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.203 by root, Thu Feb 1 19:40:42 2007 UTC vs.
Revision 1.398 by root, Wed Dec 5 11:08:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.1 ();
		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::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS 2.01 ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
28		38	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
53		87
54	our %CFG;	88	our %CFG;
55		89
56	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	91	our $RUNTIME;
58		92
59	our %PLAYER; # all users	93	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	94	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	95	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		96
67	# used to convert map paths into valid unix filenames by replacing / by ∕	97	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
		103
70	binmode STDOUT;	104	binmode STDOUT;
71	binmode STDERR;	105	binmode STDERR;
72		106
73	# read virtual server time, if available	107	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
78	}	112	}
79		113
80	mkdir cf::localdir;	114	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		116
86	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
87		118
88	sub cf::map::normalise;	119	sub cf::map::normalise;
89		120
…		…
100	=item $cf::RUNTIME	131	=item $cf::RUNTIME
101		132
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	134	every server tick.
104		135
105	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		139
107	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
109		144
110	=item $cf::NOW	145	=item $cf::NOW
111		146
112	The time of the last (current) server tick.	147	The time of the last (current) server tick.
113		148
114	=item $cf::TICK	149	=item $cf::TICK
115		150
116	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
117		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
118	=item %cf::CFG	163	=item %cf::CFG
119		164
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
121	from wherever your confdir points to.	166	from wherever your confdir points to.
122		167
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	168	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		169
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	171	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.	173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
129		179
130	=back	180	=back
131		181
132	=cut	182	=cut
133		183
134	BEGIN {	184	BEGIN {
135	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	186	my $msg = join "", @_;
137	utf8::encode $msg;
138		187
139	$msg .= "\n"	188	$msg .= "\n"
140	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
141		192
142	LOG llevError, $msg;	193	LOG llevError, $msg;
143	};	194	};
144	}	195	}
145		196
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		204
153	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	206	# within the Safe compartment.
155	for my $pkg (qw(	207	for my $pkg (qw(
156	cf::global cf::attachable	208	cf::global cf::attachable
…		…
161	)) {	213	)) {
162	no strict 'refs';	214	no strict 'refs';
163	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
164	}	216	}
165		217
166	$Event::DIED = sub {	218	$EV::DIED = sub {
167	warn "error in event callback: @_";	219	warn "error in event callback: @_";
168	};	220	};
		221
		222	#############################################################################
169		223
170	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
171		225
172	=over 4	226	=over 4
173		227
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	247	$d
194	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
195	}	249	}
196		250
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	251	=item $ref = cf::decode_json $json
200		252
201	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
202		254
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	255	=item $json = cf::encode_json $ref
211		256
212	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
213		258
214	=cut	259	=cut
215		260
216	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
218	JSON::Syck::Dump $_[0]	263	sub encode_json($) { $json_coder->encode ($_[0]) }
219	}	264	sub decode_json($) { $json_coder->decode ($_[0]) }
220		265
221	=item cf::lock_wait $string	266	=item cf::lock_wait $string
222		267
223	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
224		269
…		…
227	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
229	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
230	returned.	275	returned.
231		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
232	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
234		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
235	=cut	287	=cut
236		288
237	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
238		291
239	sub lock_wait($) {	292	sub lock_wait($) {
240	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
241		299
242	# wait for lock, if any	300	# wait for lock, if any
243	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
244	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
245	Coro::schedule;	303	Coro::schedule;
…		…
251		309
252	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
253	lock_wait $key;	311	lock_wait $key;
254		312
255	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
256		315
257	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
258	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
260	}	320	}
261	}	321	}
262		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
263	sub freeze_mainloop {	329	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
265		331
266	my $guard = Coro::guard {	332	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	333	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	334	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
272	$guard	336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
273	}	410	}
274		411
275	=item cf::async { BLOCK }	412	=item cf::async { BLOCK }
276		413
277	Currently the same as Coro::async_pool, meaning you cannot use	414	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		419
283	BEGIN { *async = \&Coro::async_pool }	420	BEGIN { *async = \&Coro::async_pool }
284		421
285	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
286		423
287	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
290		428
291	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
294	fast or be very important.	432	fast or be very important.
…		…
297		435
298	sub sync_job(&) {	436	sub sync_job(&) {
299	my ($job) = @_;	437	my ($job) = @_;
300		438
301	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
302	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
304		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
305	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	448	# (but this is cancel-safe)
307	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
308		450
309	my $busy = 1;	451	my $busy = 1;
310	my @res;	452	my @res;
311		453
312	(async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	456	@res = eval { $job->() };
314	warn $@ if $@;	457	warn $@ if $@;
315	undef $busy;	458	undef $busy;
316	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
317		460
318	while ($busy) {	461	while ($busy) {
319	Coro::cede or Event::one_event;	462	if (Coro::nready) {
		463	Coro::cede_notself;
		464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
320	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
321		475
322	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
323	} else {	477	} else {
324	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
325		479
…		…
345	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
346		500
347	$coro	501	$coro
348	}	502	}
349		503
350	sub write_runtime {	504	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		505
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
354	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
355		510
356	my $value = $cf::RUNTIME + 90 + 10;	511	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		512
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	513	sub fork_call(&@) {
361	and return;	514	my ($cb, @args) = @_;
362		515
363	aio_fsync $fh	516	# we seemingly have to make a local copy of the whole thing,
364	and return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
365		519
366	close $fh	520	my @res = Coro::Util::fork_eval {
367	or return;	521	reset_signals;
		522	&$cb
		523	}, @args;
368		524
369	aio_rename "$runtime~", $runtime	525	wantarray ? @res : $res[-1]
370	and return;	526	}
371		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
372	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	664	}
374		665
375	=back	666	=back
376		667
377	=cut	668	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
386		677
387	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	680	Deliantra).
390		681
391	=over 4	682	=over 4
392		683
393	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
394		685
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
558		849
559	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		854
564	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	856	my $pkg = shift @arg;
566		857
567	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
597	}	888	}
598		889
599	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
600	} else {	891	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	893	}
603		894
604	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
605	}	896	}
606		897
…		…
608	if (ref $_[0]) {	899	if (ref $_[0]) {
609	_object_attach @_;	900	_object_attach @_;
610	} else {	901	} else {
611	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
612	}	903	}
		904	_recalc_want;
613	};	905	};
614		906
615	# all those should be optimised	907	# all those should be optimised
616	sub cf::attachable::detach {	908	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
621	reattach ($obj);	913	reattach ($obj);
622	} else {	914	} else {
623	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
624	}	916	}
		917	_recalc_want;
625	};	918	};
626		919
627	sub cf::attachable::attached {	920	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
629		922
…		…
644	";	937	";
645	die if $@;	938	die if $@;
646	}	939	}
647		940
648	our $override;	941	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		943
651	sub override {	944	sub override {
652	$override = 1;	945	$override = 1;
653	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
654	}	947	}
655		948
656	sub do_invoke {	949	sub do_invoke {
657	my $event = shift;	950	my $event = shift;
658	my $callbacks = shift;	951	my $callbacks = shift;
659		952
660	@invoke_results = ();	953	@INVOKE_RESULTS = ();
661		954
662	local $override;	955	local $override;
663		956
664	for (@$callbacks) {	957	for (@$callbacks) {
665	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
682		975
683	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
684		977
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		981
689	=back	982	=back
690		983
691	=cut	984	=cut
692		985
693	#############################################################################	986	#############################################################################
694	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
695		1030
696	sub reattach {	1031	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	1033	my ($obj) = @_;
699		1034
…		…
720	cf::attachable->attach (	1055	cf::attachable->attach (
721	prio => -1000000,	1056	prio => -1000000,
722	on_instantiate => sub {	1057	on_instantiate => sub {
723	my ($obj, $data) = @_;	1058	my ($obj, $data) = @_;
724		1059
725	$data = from_json $data;	1060	$data = decode_json $data;
726		1061
727	for (@$data) {	1062	for (@$data) {
728	my ($name, $args) = @$_;	1063	my ($name, $args) = @$_;
729		1064
730	$obj->attach ($name, %{$args || {} });	1065	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1081	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
748		1083
749	sync_job {	1084	sync_job {
750	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
753		1089
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1094	close $fh;
759		1095
760	if (@$objs) {	1096	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1102	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
768	}	1104	}
769	} else {	1105	} else {
770	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
776	}	1112	}
777	} else {	1113	} else {
778	aio_unlink $filename;	1114	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
780	}	1116	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1117	};
788	}	1118	}
789		1119
790	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
792		1122
…		…
797		1127
798	sub object_thawer_load {	1128	sub object_thawer_load {
799	my ($filename) = @_;	1129	my ($filename) = @_;
800		1130
801	my ($data, $av);	1131	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1132
806	(aio_load $filename, $data) >= 0	1133	(aio_load $filename, $data) >= 0
807	or return;	1134	or return;
808		1135
809	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
811	or return;	1138	or return;
		1139
812	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
813	}	1142	}
814		1143
		1144	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
817	return ($data, $av);	1148	($data, $av)
818	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
819		1156
820	#############################################################################	1157	#############################################################################
821	# command handling &c	1158	# command handling &c
822		1159
823	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1174	}
838		1175
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1177
841	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
842		1183
843	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
844	called.	1185	called.
845		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
846	=cut	1198	=cut
847		1199
848	sub register_extcmd {	1200	sub register_extcmd {
849	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
850		1202
851	$EXTCMD{$name} = $cb;	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
852	}	1210	}
853		1211
854	cf::player->attach (	1212	cf::player->attach (
855	on_command => sub {	1213	on_command => sub {
856	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
865	cf::override;	1223	cf::override;
866	},	1224	},
867	on_extcmd => sub {	1225	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
869		1227
870	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1229
872	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
878	} else {	1245	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1247	}
881		1248
882	cf::override;	1249	cf::override;
883	},	1250	},
884	);	1251	);
885		1252
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
921	for my $ext (<$LIBDIR/*.ext>) {	1257	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1258	next unless -r $path;
923	eval {	1259
924	load_extension $ext;	1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
925	1	1317	}
926	} or warn "$ext not loaded: $@";	1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
927	}	1323	};
928	}	1324	}
929		1325
930	#############################################################################	1326	#############################################################################
931		1327
		1328	=back
		1329
932	=head2 CORE EXTENSIONS	1330	=head2 CORE EXTENSIONS
933		1331
934	Functions and methods that extend core crossfire objects.	1332	Functions and methods that extend core crossfire objects.
935		1333
936	=cut	1334	=cut
…		…
941		1339
942	=head3 cf::player	1340	=head3 cf::player
943		1341
944	=over 4	1342	=over 4
945		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
946	=item cf::player::find $login	1358	=item cf::player::find $login
947		1359
948	Returns the given player object, loading it if necessary (might block).	1360	Returns the given player object, loading it if necessary (might block).
949		1361
950	=cut	1362	=cut
951		1363
952	sub playerdir($) {	1364	sub playerdir($) {
953	cf::localdir	1365	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1367	}
959		1368
960	sub path($) {	1369	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1371
963	(playerdir $login) . "/$login.pl"	1372	(playerdir $login) . "/playerdata"
964	}	1373	}
965		1374
966	sub find_active($) {	1375	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1376	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1377	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1390	my $login = $_[0];
982		1391
983	my $guard = cf::lock_acquire "user_find:$login";	1392	my $guard = cf::lock_acquire "user_find:$login";
984		1393
985	$cf::PLAYER{$_[0]} || do {	1394	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
987	or return;	1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
988	$cf::PLAYER{$login} = $pl	1409	$cf::PLAYER{$login} = $pl
989	}	1410	}
990	}	1411	}
991	}	1412	}
992		1413
…		…
1002		1423
1003	aio_mkdir playerdir $pl, 0770;	1424	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1425	$pl->{last_save} = $cf::RUNTIME;
1005		1426
1006	$pl->save_pl ($path);	1427	$pl->save_pl ($path);
1007	Coro::cede;	1428	cf::cede_to_tick;
1008	}	1429	}
1009		1430
1010	sub new($) {	1431	sub new($) {
1011	my ($login) = @_;	1432	my ($login) = @_;
1012		1433
…		…
1018	$cf::PLAYER{$login} = $self;	1439	$cf::PLAYER{$login} = $self;
1019		1440
1020	$self	1441	$self
1021	}	1442	}
1022		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
1023	=item $pl->quit_character	1454	=item $pl->quit_character
1024		1455
1025	Nukes the player without looking back. If logged in, the connection will	1456	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1457	be destroyed. May block for a long time.
1027		1458
1028	=cut	1459	=cut
1029		1460
1030	sub quit_character {	1461	sub quit_character {
1031	my ($pl) = @_;	1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
1032		1465
1033	$pl->{deny_save} = 1;	1466	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1468
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1474	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1475	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1476	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1477	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
1046	IO::AIO::aio_rmtree $temp;	1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
1047	}	1500	}
1048		1501
1049	=item cf::player::list_logins	1502	=item cf::player::list_logins
1050		1503
1051	Returns am arrayref of all valid playernames in the system, can take a	1504	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1505	while and may block, so not sync_job-capable, ever.
1053		1506
1054	=cut	1507	=cut
1055		1508
1056	sub list_logins {	1509	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1510	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1511	or return [];
1059		1512
1060	my @logins;	1513	my @logins;
1061		1514
1062	for my $login (@$dirs) {	1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1521	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
1066		1524
1067	utf8::decode $login;	1525	utf8::decode $login;
1068	push @logins, $login;	1526	push @logins, $login;
1069	}	1527	}
1070		1528
…		…
1097	}	1555	}
1098		1556
1099	\@paths	1557	\@paths
1100	}	1558	}
1101		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1653	=item $player->ext_reply ($msgid, @msg)
1103		1654
1104	Sends an ext reply to the player.	1655	Sends an ext reply to the player.
1105		1656
1106	=cut	1657	=cut
1107		1658
1108	sub ext_reply($$$%) {	1659	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1660	my ($self, $id, @msg) = @_;
1110		1661
1111	$msg{msgid} = $id;	1662	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1663	}
1115		1664
1116	package cf;	1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
		1692	my ($path) = @_;
		1693
		1694	my ($match, $specificity);
		1695
		1696	for my $region (list) {
		1697	if ($region->{match} && $path =~ $region->{match}) {
		1698	($match, $specificity) = ($region, $region->specificity)
		1699	if $region->specificity > $specificity;
		1700	}
		1701	}
		1702
		1703	$match
		1704	}
1117		1705
1118	=back	1706	=back
1119
1120		1707
1121	=head3 cf::map	1708	=head3 cf::map
1122		1709
1123	=over 4	1710	=over 4
1124		1711
…		…
1179	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1180		1767
1181	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1182	local $self->{path};	1769	local $self->{path};
1183	local $self->{load_path};	1770	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1771
1187	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1188	}	1773	}
1189		1774
1190	sub normalise {	1775	sub normalise {
…		…
1237	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1238	return $self;	1823	return $self;
1239	}	1824	}
1240	}	1825	}
1241		1826
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1243	()	1828	()
1244	}	1829	}
1245		1830
1246	sub init {	1831	sub init {
1247	my ($self) = @_;	1832	my ($self) = @_;
…		…
1262		1847
1263	# the original (read-only) location	1848	# the original (read-only) location
1264	sub load_path {	1849	sub load_path {
1265	my ($self) = @_;	1850	my ($self) = @_;
1266		1851
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1268	}	1853	}
1269		1854
1270	# the temporary/swap location	1855	# the temporary/swap location
1271	sub save_path {	1856	sub save_path {
1272	my ($self) = @_;	1857	my ($self) = @_;
1273		1858
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1276	}	1861	}
1277		1862
1278	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1279	sub uniq_path {	1864	sub uniq_path {
1280	my ($self) = @_;	1865	my ($self) = @_;
1281		1866
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1284	}	1869	}
1285		1870
1286	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1287	# all maps in C++...	1872	# all maps in C++...
1288	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1290		1875
1291	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1292	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1293	}	1878	}
1294		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
1295	sub unlink_save {	1888	sub unlink_save {
1296	my ($self) = @_;	1889	my ($self) = @_;
1297		1890
1298	utf8::encode (my $save = $self->save_path);	1891	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302	#d#TODO remove .map and also nuke
1303	$save =~ s/\.map// or return;#d#
1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306	}	1894	}
1307		1895
1308	sub load_header_from($) {	1896	sub load_header_from($) {
1309	my ($self, $path) = @_;	1897	my ($self, $path) = @_;
1310		1898
1311	utf8::encode $path;	1899	utf8::encode $path;
1312	#aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1313	# or return;
1314
1315	$self->_load_header ($path)
1316	or return;	1901	or return;
		1902
		1903	$self->_load_header ($f)
		1904	or return;
		1905
		1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
1317		1908
1318	$self->{load_path} = $path;	1909	$self->{load_path} = $path;
1319		1910
1320	1	1911	1
1321	}	1912	}
…		…
1360	$self->load_header_orig	1951	$self->load_header_orig
1361	or return;	1952	or return;
1362	$self->prepare_orig;	1953	$self->prepare_orig;
1363	}	1954	}
1364		1955
		1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
		1958
		1959	$self->default_region (cf::region::find_by_path $self->{path})
		1960	unless $self->default_region;
		1961
1365	1	1962	1
1366	}	1963	}
1367		1964
1368	sub find;	1965	sub find;
1369	sub find {	1966	sub find {
1370	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1371		1968
1372	$path = normalise $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1373		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1374	cf::lock_wait "map_find:$path";	1972	cf::lock_wait "map_find:$path";
1375		1973
1376	$cf::MAP{$path} || do {	1974	$cf::MAP{$path} || do {
1377	my $guard = cf::lock_acquire "map_find:$path";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1977
1378	my $map = new_from_path cf::map $path	1978	my $map = new_from_path cf::map $path
1379	or return;	1979	or return;
1380		1980
1381	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1382		1982
1383	$map->load_header	1983	$map->load_header
1384	or return;	1984	or return;
1385		1985
1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1387	# doing this can freeze the server in a sync job, obviously	1987	# doing this can freeze the server in a sync job, obviously
1388	#$cf::WAIT_FOR_TICK->wait;	1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1389	$map->reset;	1991	$map->reset;
1390	undef $guard;
1391	return find $path;	1992	return find $path;
1392	}	1993	}
1393		1994
1394	$cf::MAP{$path} = $map	1995	$cf::MAP{$path} = $map
1395	}	1996	}
…		…
1402	my ($self) = @_;	2003	my ($self) = @_;
1403		2004
1404	local $self->{deny_reset} = 1; # loading can take a long time	2005	local $self->{deny_reset} = 1; # loading can take a long time
1405		2006
1406	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1407	my $guard = cf::lock_acquire "map_load:$path";	2010	my $guard = cf::lock_acquire "map_data:$path";
1408		2011
		2012	return unless $self->valid;
1409	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1410		2014
1411	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1412		2016
1413	$self->alloc;	2017	$self->alloc;
1414		2018
1415	$self->pre_load;	2019	$self->pre_load;
		2020	cf::cede_to_tick;
1416		2021
1417	$self->_load_objects ($self->{load_path}, 1)	2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1418	or return;	2025	or return;
1419		2026
1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1421	if delete $self->{load_original};	2028	if delete $self->{load_original};
1422		2029
1423	if (my $uniq = $self->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1424	utf8::encode $uniq;	2031	utf8::encode $uniq;
1425	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1426	$self->clear_unique_items;	2034	$self->clear_unique_items;
1427	$self->_load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1428	}	2038	}
1429	}	2039	}
1430		2040
1431	Coro::cede;	2041	$f->resolve_delayed_derefs;
1432		2042
		2043	cf::cede_to_tick;
1433	# now do the right thing for maps	2044	# now do the right thing for maps
1434	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1435
1436	unless ($self->{deny_activate}) {
1437	$self->decay_objects;
1438	$self->fix_auto_apply;
1439	$self->update_buttons;
1440	Coro::cede;
1441	$self->set_darkness_map;
1442	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1443	unless $self->difficulty;	2047	unless $self->difficulty;
1444	Coro::cede;	2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1445	$self->activate;	2057	$self->activate;
		2058	}
		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
		2063	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2064	}
1447		2065
1448	$self->post_load;	2066	$self->post_load;
1449
1450	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	2067	}
1452		2068
1453	sub customise_for {	2069	sub customise_for {
1454	my ($self, $ob) = @_;	2070	my ($self, $ob) = @_;
1455		2071
1456	return find "~" . $ob->name . "/" . $self->{path}	2072	return find "~" . $ob->name . "/" . $self->{path}
1457	if $self->per_player;	2073	if $self->per_player;
1458		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
1459	$self	2078	$self
1460	}	2079	}
1461		2080
1462	# find and load all maps in the 3x3 area around a map	2081	# find and load all maps in the 3x3 area around a map
1463	sub load_diag {	2082	sub load_neighbours {
1464	my ($map) = @_;	2083	my ($map) = @_;
1465		2084
1466	my @diag; # diagonal neighbours	2085	my @neigh; # diagonal neighbours
1467		2086
1468	for (0 .. 3) {	2087	for (0 .. 3) {
1469	my $neigh = $map->tile_path ($_)	2088	my $neigh = $map->tile_path ($_)
1470	or next;	2089	or next;
1471	$neigh = find $neigh, $map	2090	$neigh = find $neigh, $map
1472	or next;	2091	or next;
1473	$neigh->load;	2092	$neigh->load;
1474		2093
		2094	push @neigh,
1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1477	}	2097	}
1478		2098
1479	for (@diag) {	2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
1480	my $neigh = find @$_	2101	my $neigh = find $path, $origin
1481	or next;	2102	or next;
1482	$neigh->load;	2103	$neigh->load;
1483	}	2104	}
1484	}	2105	}
1485		2106
…		…
1490	}	2111	}
1491		2112
1492	sub do_load_sync {	2113	sub do_load_sync {
1493	my ($map) = @_;	2114	my ($map) = @_;
1494		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1495	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
1496	}	2120	}
1497		2121
1498	our %MAP_PREFETCH;	2122	our %MAP_PREFETCH;
1499	our $MAP_PREFETCHER = undef;	2123	our $MAP_PREFETCHER = undef;
1500		2124
1501	sub find_async {	2125	sub find_async {
1502	my ($path, $origin) = @_;	2126	my ($path, $origin, $load) = @_;
1503		2127
1504	$path = normalise $path, $origin && $origin->{path};	2128	$path = normalise $path, $origin && $origin->{path};
1505		2129
1506	if (my $map = $cf::MAP{$path}) {	2130	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1508	}	2132	}
1509		2133
1510	undef $MAP_PREFETCH{$path};	2134	$MAP_PREFETCH{$path} |= $load;
		2135
1511	$MAP_PREFETCHER ||= cf::async {	2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
1512	while (%MAP_PREFETCH) {	2139	while (%MAP_PREFETCH) {
1513	for my $path (keys %MAP_PREFETCH) {	2140	while (my ($k, $v) = each %MAP_PREFETCH) {
1514	my $map = find $path	2141	if (my $map = find $k) {
1515	or next;
1516	$map->load;	2142	$map->load if $v;
		2143	}
1517		2144
1518	delete $MAP_PREFETCH{$path};	2145	delete $MAP_PREFETCH{$k};
1519	}	2146	}
1520	}	2147	}
1521	undef $MAP_PREFETCHER;	2148	undef $MAP_PREFETCHER;
1522	};	2149	};
1523	$MAP_PREFETCHER->prio (6);	2150	$MAP_PREFETCHER->prio (6);
…		…
1526	}	2153	}
1527		2154
1528	sub save {	2155	sub save {
1529	my ($self) = @_;	2156	my ($self) = @_;
1530		2157
1531	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2159
1533	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1534		2161
1535	return unless $self->dirty;	2162	return unless $self->dirty;
1536		2163
…		…
1542	return if $self->{deny_save};	2169	return if $self->{deny_save};
1543		2170
1544	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1545		2172
1546	cf::async {	2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
1547	$_->contr->save for $self->players;	2175	$_->contr->save for $self->players;
1548	};	2176	};
1549		2177
1550	if ($uniq) {	2178	if ($uniq) {
1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1559	my ($self) = @_;	2187	my ($self) = @_;
1560		2188
1561	# save first because save cedes	2189	# save first because save cedes
1562	$self->save;	2190	$self->save;
1563		2191
1564	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1565		2193
1566	return if $self->players;	2194	return if $self->players;
1567	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1568	return if $self->{deny_save};	2196	return if $self->{deny_save};
1569		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1570	$self->clear;	2202	$self->clear;
1571	$self->in_memory (cf::MAP_SWAPPED);
1572	}	2203	}
1573		2204
1574	sub reset_at {	2205	sub reset_at {
1575	my ($self) = @_;	2206	my ($self) = @_;
1576		2207
1577	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1579	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1580		2210
1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1583		2213
…		…
1594	my ($self) = @_;	2224	my ($self) = @_;
1595		2225
1596	my $lock = cf::lock_acquire "map_data:$self->{path}";	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1597		2227
1598	return if $self->players;	2228	return if $self->players;
1599	return if $self->isa ("ext::map_per_player");#d#
1600		2229
1601	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1602		2241
1603	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1604		2243
1605	$self->in_memory (cf::MAP_SWAPPED);	2244	$self->deactivate;
		2245	$_->clear_links_to ($self) for values %cf::MAP;
1606	$self->clear;	2246	$self->clear;
1607
1608	$_->clear_links_to ($self) for values %cf::MAP;
1609		2247
1610	$self->unlink_save;	2248	$self->unlink_save;
1611	$self->destroy;	2249	$self->destroy;
1612	}	2250	}
1613		2251
1614	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1615		2253
1616	sub nuke {	2254	sub nuke {
1617	my ($self) = @_;	2255	my ($self) = @_;
1618		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
1619	delete $cf::MAP{$self->path};	2260	delete $cf::MAP{$self->path};
1620		2261
1621	$self->unlink_save;	2262	$self->unlink_save;
1622		2263
1623	bless $self, "cf::map";	2264	bless $self, "cf::map";
1624	delete $self->{deny_reset};	2265	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1628		2269
1629	$cf::MAP{$self->path} = $self;	2270	$cf::MAP{$self->path} = $self;
		2271	}
1630		2272
1631	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
		2274	}
		2275
		2276	=item $maps = cf::map::tmp_maps
		2277
		2278	Returns an arrayref with all map paths of currently instantiated and saved
		2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
		2284	[
		2285	map {
		2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
		2292	}
		2293
		2294	=item $maps = cf::map::random_maps
		2295
		2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
		2298
		2299	=cut
		2300
		2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
1632	}	2310	}
1633		2311
1634	=item cf::map::unique_maps	2312	=item cf::map::unique_maps
1635		2313
1636	Returns an arrayref of paths of all shared maps that have	2314	Returns an arrayref of paths of all shared maps that have
1637	instantiated unique items. May block.	2315	instantiated unique items. May block.
1638		2316
1639	=cut	2317	=cut
1640		2318
1641	sub unique_maps() {	2319	sub unique_maps() {
1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2320	[
1643	or return;	2321	map {
1644
1645	my @paths;
1646
1647	for (@$files) {
1648	utf8::decode $_;	2322	utf8::decode $_;
1649	next if /\.pst$/;	2323	/\.map$/
1650	next unless /^$PATH_SEP/o;	2324	? normalise $_
1651		2325	: ()
1652	push @paths, cf::map::normalise $_;	2326	} @{ aio_readdir $UNIQUEDIR or [] }
1653	}	2327	]
1654
1655	\@paths
1656	}	2328	}
1657		2329
1658	package cf;	2330	package cf;
1659		2331
1660	=back	2332	=back
…		…
1678	map { $_, inv_recursive_ $_->inv } @_	2350	map { $_, inv_recursive_ $_->inv } @_
1679	}	2351	}
1680		2352
1681	sub inv_recursive {	2353	sub inv_recursive {
1682	inv_recursive_ inv $_[0]	2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
1683	}	2383	}
1684		2384
1685	package cf;	2385	package cf;
1686		2386
1687	=back	2387	=back
…		…
1706		2406
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2408
1709	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1711	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1712	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1714	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1715	}	2434	}
1716		2435
1717	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1718		2437
1719	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1766	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1767		2486
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2488
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1772		2491
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1774	}	2493	}
1775		2494
1776	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1778		2499
1779	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1780		2501
1781	unless ($map) {	2502	unless ($map) {
1782	# restore original map position	2503	# restore original map position
…		…
1796	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1797	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1798	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1799		2520
1800	$map->load;	2521	$map->load;
1801	$map->load_diag;	2522	$map->load_neighbours;
1802		2523
1803	return unless $self->contr->active;	2524	return unless $self->contr->active;
1804	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1805	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1806	}	2529	}
1807		2530
1808	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1809	on_logout => sub {
1810	my ($pl) = @_;
1811		2532
1812	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1813	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1814	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1815	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1816	};	2537	be called at the end of this process.
1817	}
1818	},
1819	on_login => sub {
1820	my ($pl) = @_;
1821		2538
1822	# try to abort aborted map switching on player login :)
1823	# should happen only on crashes
1824	if ($pl->ob->{_link_pos}) {
1825	$pl->ob->enter_link;
1826	(async {
1827	# we need this sleep as the login has a concurrent enter_exit running
1828	# and this sleep increases chances of the player not ending up in scorn
1829	$pl->ob->reply (undef,
1830	"There was an internal problem at your last logout, "
1831	. "the server will try to bring you to your intended destination in a second.",
1832	cf::NDI_RED);
1833	Coro::Timer::sleep 1;
1834	$pl->ob->leave_link;
1835	})->prio (2);
1836	}
1837	},
1838	);
1839
1840	=item $player_object->goto ($path, $x, $y)
1841
1842	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1843		2542
1844	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1845	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1846		2548
1847	$self->enter_link;	2549	$self->enter_link;
1848		2550
1849	(async {	2551	(async {
		2552	$Coro::current->{desc} = "player::goto $path $x $y";
		2553
		2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
1850	my $map = eval {	2573	my $map = eval {
1851	my $map = cf::map::find $path;	2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1852	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
		2578	$map = $check->($map) if $check && $map;
		2579	} else {
		2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
		2582
1853	$map	2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
1854	} or	2589	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1858	})->prio (1);	2597	})->prio (1);
1859	}	2598	}
1860		2599
1861	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1862		2601
…		…
1899	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1900	}	2639	}
1901		2640
1902	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1903		2642
1904	my $data = cf::to_json $rmp;	2643	my $data = cf::encode_json $rmp;
1905	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2645	my $meta = "$RANDOMDIR/$md5.meta";
1907		2646
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2649	undef $fh;
1911	aio_rename "$meta~", $meta;	2650	aio_rename "$meta~", $meta;
…		…
1920		2659
1921	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1922		2661
1923	if ($exit->slaying eq "/!") {	2662	if ($exit->slaying eq "/!") {
1924	#TODO: this should de-fi-ni-te-ly not be a sync-job	2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
1925	cf::sync_job { prepare_random_map $exit };	2666	cf::sync_job { prepare_random_map $exit };
1926	}	2667	}
1927		2668
1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1929	my $hp = $exit->stats->hp;	2670	my $hp = $exit->stats->hp;
1930	my $sp = $exit->stats->sp;	2671	my $sp = $exit->stats->sp;
1931		2672
1932	$self->enter_link;	2673	$self->enter_link;
1933		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1934	(async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1935	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1936	unless (eval {	2683	unless (eval {
1937	$self->goto ($slaying, $hp, $sp);	2684	$self->goto ($slaying, $hp, $sp);
1938		2685
1939	1;	2686	1;
1940	}) {	2687	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1942	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1943	. "Please report this to the dungeon master!",	2690	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2692
1946	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1947	$self->leave_link;	2694	$self->leave_link;
1948	}	2695	}
1949	})->prio (1);	2696	})->prio (1);
…		…
1962		2709
1963	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1965		2712
1966	utf8::encode $text;	2713	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2715	}
1969		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1970		2875
1971	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1972		2877
1973	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1974	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1975	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1976		2881
1977	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1978	reliable at some point in the future.	2883	become reliable at some point in the future.
1979		2884
1980	=cut	2885	=cut
1981		2886
1982	sub cf::client::query {	2887	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	2896	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		2898
1994	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1996	}	2903	}
1997		2904
1998	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1999	on_reply => sub {	2911	on_reply => sub {
2000	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
2001		2913
2002	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
2003	# get handled first	2915	# get handled first
…		…
2015	} else {	2927	} else {
2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2017	}	2929	}
2018	}	2930	}
2019	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
2020	);	2958	);
2021		2959
2022	=item $client->async (\&cb)	2960	=item $client->async (\&cb)
2023		2961
2024	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
…		…
2065	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
2066	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
2067		3005
2068	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
2069		3007
2070	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
2071		3013
2072	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
2073		3015
2074	=pod	3016	=pod
2075		3017
2076	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
2077		3019
2078	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
2079	cf::object::player player	3024	cf::object::player
2080	cf::player peaceful	3025	player
2081	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
2082		3032
2083	=cut	3033	=cut
2084		3034
2085	for (	3035	for (
2086	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
2087	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
2088	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
2089	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
2090	) {	3042	) {
2091	no strict 'refs';	3043	no strict 'refs';
…		…
2162	=back	3114	=back
2163		3115
2164	=cut	3116	=cut
2165		3117
2166	#############################################################################	3118	#############################################################################
2167
2168	=head2 EXTENSION DATABASE SUPPORT
2169
2170	Crossfire maintains a very simple database for extension use. It can
2171	currently store anything that can be serialised using Storable, which
2172	excludes objects.
2173
2174	The parameter C<$family> should best start with the name of the extension
2175	using it, it should be unique.
2176
2177	=over 4
2178
2179	=item $hashref = cf::db_get $family
2180
2181	Return a hashref for use by the extension C<$family>, which can be
2182	modified. After modifications, you have to call C<cf::db_dirty> or
2183	C<cf::db_sync>.
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database
2188
2189	=item cf::db_put $family => $hashref
2190
2191	Stores the given family hashref into the database. Updates are delayed, if
2192	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family hash. Updates are delayed, if you
2197	want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199	=item cf::db_dirty
2200
2201	Marks the database as dirty, to be updated at a later time.
2202
2203	=item cf::db_sync
2204
2205	Immediately write the database to disk I<if it is dirty>.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	{
2212	my $path = cf::localdir . "/database.pst";
2213
2214	sub db_load() {
2215	$DB = stat $path ? Storable::retrieve $path : { };
2216	}
2217
2218	my $pid;
2219
2220	sub db_save() {
2221	waitpid $pid, 0 if $pid;
2222	if (0 == ($pid = fork)) {
2223	$DB->{_meta}{version} = 1;
2224	Storable::nstore $DB, "$path~";
2225	rename "$path~", $path;
2226	cf::_exit 0 if defined $pid;
2227	}
2228	}
2229
2230	my $dirty;
2231
2232	sub db_sync() {
2233	db_save if $dirty;
2234	undef $dirty;
2235	}
2236
2237	my $idle = Event->idle (
2238	reentrant => 0,
2239	min => 10,
2240	max => 20,
2241	repeat => 0,
2242	data => WF_AUTOCANCEL,
2243	cb => \&db_sync,
2244	);
2245
2246	sub db_dirty() {
2247	$dirty = 1;
2248	$idle->start;
2249	}
2250
2251	sub db_get($;$) {
2252	@_ >= 2
2253	? $DB->{$_[0]}{$_[1]}
2254	: ($DB->{$_[0]} ||= { })
2255	}
2256
2257	sub db_put($$;$) {
2258	if (@_ >= 3) {
2259	$DB->{$_[0]}{$_[1]} = $_[2];
2260	} else {
2261	$DB->{$_[0]} = $_[1];
2262	}
2263	db_dirty;
2264	}
2265
2266	cf::global->attach (
2267	prio => 10000,
2268	on_cleanup => sub {
2269	db_sync;
2270	},
2271	);
2272	}
2273
2274	#############################################################################
2275	# the server's init and main functions	3119	# the server's init and main functions
2276		3120
2277	sub load_resources {	3121	sub load_facedata($) {
2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3122	my ($path) = @_;
		3123
		3124	# HACK to clear player env face cache, we need some signal framework
		3125	# for this (global event?)
		3126	%ext::player_env::MUSIC_FACE_CACHE = ();
		3127
		3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3129
		3130	warn "loading facedata from $path\n";
		3131
		3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
		3135
		3136	$facedata = Coro::Storable::thaw $facedata;
		3137
		3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3140
		3141	# patch in the exptable
		3142	$facedata->{resource}{"res/exp_table"} = {
		3143	type => FT_RSRC,
		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3145	};
		3146	cf::cede_to_tick;
		3147
		3148	{
		3149	my $faces = $facedata->{faceinfo};
		3150
		3151	while (my ($face, $info) = each %$faces) {
		3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3153	cf::face::set_visibility $idx, $info->{visibility};
		3154	cf::face::set_magicmap $idx, $info->{magicmap};
		3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3157
		3158	cf::cede_to_tick;
		3159	}
		3160
		3161	while (my ($face, $info) = each %$faces) {
		3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
		3171
		3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
2279	or die "unable to load regions file\n";#d#	3253	or die "unable to load regions file\n";
2280	}
2281		3254
2282	sub cfg_load {	3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
2283	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
2284	or return;	3299	or return;
2285		3300
2286	local $/;	3301	local $/;
2287	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
2288		3303
…		…
2298	};	3313	};
2299	warn $@ if $@;	3314	warn $@ if $@;
2300	}	3315	}
2301	}	3316	}
2302		3317
2303	sub init {
2304	load_resources;
2305	}
2306
2307	sub main {	3318	sub main {
2308	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2309	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2311	(async {	3322	(async {
2312	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3324	EV::loop EV::LOOP_ONESHOT;
2313	})->prio (Coro::PRIO_MAX);	3325	})->prio (Coro::PRIO_MAX);
2314	};	3326	};
2315		3327
2316	cfg_load;	3328	reload_config;
2317	db_load;	3329	db_init;
2318	load_extensions;	3330	load_extensions;
2319		3331
2320	$TICK_WATCHER->start;	3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2321	Event::loop;	3334	EV::loop;
2322	}	3335	}
2323		3336
2324	#############################################################################	3337	#############################################################################
2325	# initialisation and cleanup	3338	# initialisation and cleanup
2326		3339
2327	# install some emergency cleanup handlers	3340	# install some emergency cleanup handlers
2328	BEGIN {	3341	BEGIN {
		3342	our %SIGWATCHER = ();
2329	for my $signal (qw(INT HUP TERM)) {	3343	for my $signal (qw(INT HUP TERM)) {
2330	Event->signal (	3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2331	reentrant => 0,
2332	data => WF_AUTOCANCEL,
2333	signal => $signal,
2334	prio => 0,
2335	cb => sub {
2336	cf::cleanup "SIG$signal";	3345	cf::cleanup "SIG$signal";
2337	},
2338	);	3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
2339	}	3385	1
2340	}	3386	}
2341		3387
2342	sub emergency_save() {	3388	sub emergency_save() {
2343	my $freeze_guard = cf::freeze_mainloop;	3389	my $freeze_guard = cf::freeze_mainloop;
2344		3390
…		…
2350	# and maps saved/destroyed asynchronously.	3396	# and maps saved/destroyed asynchronously.
2351	warn "begin emergency player save\n";	3397	warn "begin emergency player save\n";
2352	for my $login (keys %cf::PLAYER) {	3398	for my $login (keys %cf::PLAYER) {
2353	my $pl = $cf::PLAYER{$login} or next;	3399	my $pl = $cf::PLAYER{$login} or next;
2354	$pl->valid or next;	3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2355	$pl->save;	3402	$pl->save;
2356	}	3403	}
2357	warn "end emergency player save\n";	3404	warn "end emergency player save\n";
2358		3405
2359	warn "begin emergency map save\n";	3406	warn "begin emergency map save\n";
…		…
2361	my $map = $cf::MAP{$path} or next;	3408	my $map = $cf::MAP{$path} or next;
2362	$map->valid or next;	3409	$map->valid or next;
2363	$map->save;	3410	$map->save;
2364	}	3411	}
2365	warn "end emergency map save\n";	3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
2366	};	3417	};
2367		3418
2368	warn "leave emergency perl save\n";	3419	warn "leave emergency perl save\n";
2369	}	3420	}
2370		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2371	sub reload() {	3429	sub do_reload_perl() {
2372	# can/must only be called in main	3430	# can/must only be called in main
2373	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2374	warn "can only reload from main coroutine";	3432	warn "can only reload from main coroutine";
2375	return;	3433	return;
2376	}	3434	}
2377		3435
2378	warn "reloading...";	3436	warn "reloading...";
2379		3437
2380	warn "cancelling server ticker";	3438	warn "entering sync_job";
2381	$TICK_WATCHER->cancel;
2382		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2383	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2384		3444
2385	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
2386	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
2387
2388	warn "syncing database to disk";
2389	cf::db_sync;
2390
2391	warn "cancelling all WF_AUTOCANCEL watchers";
2392	for (Event::all_watchers) {
2393	$_->cancel if $_->data & WF_AUTOCANCEL;
2394	}
2395		3449
2396	warn "flushing outstanding aio requests";	3450	warn "flushing outstanding aio requests";
2397	for (;;) {	3451	for (;;) {
		3452	BDB::flush;
2398	IO::AIO::flush;	3453	IO::AIO::flush;
2399	Coro::cede;	3454	Coro::cede_notself;
2400	last unless IO::AIO::nreqs;	3455	last unless IO::AIO::nreqs || BDB::nreqs;
2401	warn "iterate...";	3456	warn "iterate...";
2402	}	3457	}
		3458
		3459	++$RELOAD;
2403		3460
2404	warn "cancelling all extension coros";	3461	warn "cancelling all extension coros";
2405	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2406	%EXT_CORO = ();	3463	%EXT_CORO = ();
2407		3464
2408	warn "removing commands";	3465	warn "removing commands";
2409	%COMMAND = ();	3466	%COMMAND = ();
2410		3467
2411	warn "removing ext commands";	3468	warn "removing ext/exti commands";
2412	%EXTCMD = ();	3469	%EXTCMD = ();
		3470	%EXTICMD = ();
2413		3471
2414	warn "unloading/nuking all extensions";	3472	warn "unloading/nuking all extensions";
2415	for my $pkg (@EXTS) {	3473	for my $pkg (@EXTS) {
2416	warn "... unloading $pkg";	3474	warn "... unloading $pkg";
2417		3475
…		…
2447	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2449		3507
2450	warn "unloading cf.pm \"a bit\"";	3508	warn "unloading cf.pm \"a bit\"";
2451	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2452		3511
2453	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2454	# and global variables created in xs	3513	# and global variables created in xs
2455	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2456		3515
…		…
2459	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2460	require cf;	3519	require cf;
2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2462		3521
2463	warn "loading config and database again";	3522	warn "loading config and database again";
2464	cf::cfg_load;	3523	cf::reload_config;
2465	cf::db_load;
2466		3524
2467	warn "loading extensions";	3525	warn "loading extensions";
2468	cf::load_extensions;	3526	cf::load_extensions;
2469		3527
2470	warn "reattaching attachments to objects/players";	3528	warn "reattaching attachments to objects/players";
2471	_global_reattach;	3529	_global_reattach; # objects, sockets
2472	warn "reattaching attachments to maps";	3530	warn "reattaching attachments to maps";
2473	reattach $_ for values %MAP;	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2474		3534
2475	warn "loading reloadable resources";	3535	warn "leaving sync_job";
2476	load_resources;
2477		3536
2478	warn "restarting server ticker";	3537	1
2479		3538	} or do {
2480	$TICK_WATCHER->start;
2481	};
2482
2483	if ($@) {
2484	warn $@;	3539	warn $@;
2485	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2486	exit 1;	3541	exit 1;
2487	}	3542	};
2488		3543
2489	warn "reloaded";	3544	warn "reloaded";
2490	};	3545	};
2491		3546
2492	our $RELOAD_WATCHER; # used only during reload	3547	our $RELOAD_WATCHER; # used only during reload
2493		3548
		3549	sub reload_perl() {
		3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
		3552
		3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3554	undef $RELOAD_WATCHER;
		3555	do_reload_perl;
		3556	};
		3557	}
		3558
2494	register_command "reload" => sub {	3559	register_command "reload" => sub {
2495	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2496		3561
2497	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2498	$who->message ("reloading server.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
		3568	}
		3569	};
2499		3570
2500	# doing reload synchronously and two reloads happen back-to-back,	3571	unshift @INC, $LIBDIR;
2501	# coro crashes during coro_state_free->destroy here.
2502		3572
2503	$RELOAD_WATCHER ||= Event->timer (	3573	my $bug_warning = 0;
2504	reentrant => 0,	3574
2505	after => 0,	3575	our @WAIT_FOR_TICK;
2506	data => WF_AUTOCANCEL,	3576	our @WAIT_FOR_TICK_BEGIN;
		3577
		3578	sub wait_for_tick {
		3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
		3605	cf::server_tick; # one server iteration
		3606
		3607	$RUNTIME += $TICK;
		3608	$NEXT_TICK += $TICK;
		3609
		3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3612	Coro::async_pool {
		3613	$Coro::current->{desc} = "runtime saver";
		3614	write_runtime
		3615	or warn "ERROR: unable to write runtime file: $!";
		3616	};
		3617	}
		3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
2507	cb => sub {	3642	sub {
2508	reload;	3643	$status = $!;
2509	undef $RELOAD_WATCHER;	3644	$current->ready; undef $current;
2510	},	3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
2511	);	3650	)
2512	}	3651	};
2513	};
2514		3652
2515	unshift @INC, $LIBDIR;	3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2516		3659
2517	my $bug_warning = 0;	3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
2518		3668
2519	$TICK_WATCHER = Event->timer (	3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2520	reentrant => 0,	3670	};
2521	parked => 1,	3671
2522	prio => 0,	3672	cf::cleanup "db_env_open(db): $@" if $@;
2523	at => $NEXT_TICK || $TICK,
2524	data => WF_AUTOCANCEL,
2525	cb => sub {
2526	if ($Coro::current != $Coro::main) {
2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2528	unless ++$bug_warning > 10;
2529	return;
2530	}	3673	};
2531
2532	$NOW = Event::time;
2533
2534	cf::server_tick; # one server iteration
2535	$RUNTIME += $TICK;
2536	$NEXT_TICK += $TICK;
2537
2538	$WAIT_FOR_TICK->broadcast;
2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2540
2541	Event::sweep;
2542	Coro::cede_notself;
2543
2544	# my $AFTER = Event::time;
2545	# warn $AFTER - $NOW;#d#
2546
2547	# if we are delayed by four ticks or more, skip them all
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2549
2550	$TICK_WATCHER->at ($NEXT_TICK);
2551	$TICK_WATCHER->start;
2552	},	3674	}
2553	);
2554		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
2555	IO::AIO::max_poll_time $TICK * 0.1;	3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3693	}
2556		3694
2557	undef $Coro::AIO::WATCHER;	3695	my $_log_backtrace;
2558	$AIO_POLL_WATCHER = Event->io (
2559	reentrant => 0,
2560	fd => IO::AIO::poll_fileno,
2561	poll => 'r',
2562	prio => 6,
2563	data => WF_AUTOCANCEL,
2564	cb => \&IO::AIO::poll_cb,
2565	);
2566		3696
2567	$WRITE_RUNTIME_WATCHER = Event->timer (	3697	sub _log_backtrace {
2568	reentrant => 0,	3698	my ($msg, @addr) = @_;
2569	data => WF_AUTOCANCEL,	3699
2570	after => 1,	3700	$msg =~ s/\n//;
2571	interval => 10,	3701
2572	prio => 6, # keep it lowest so it acts like a watchdog	3702	# limit the # of concurrent backtraces
2573	cb => Coro::unblock_sub {	3703	if ($_log_backtrace < 2) {
2574	write_runtime	3704	++$_log_backtrace;
2575	or warn "ERROR: unable to write runtime file: $!";	3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
2576	},	3732	}
2577	);	3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2578		3737
2579	END { cf::emergency_save }	3738	END { cf::emergency_save }
2580		3739
2581	1	3740	1
2582		3741

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