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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.405 by root, Mon Dec 17 08:03:22 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 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		43
29	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
30	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
31		46
32	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
33		48
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	our $NOW;	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
47		88
48	our %CFG;	89	our %CFG;
49		90
50	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	98
57	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
58		105
59	binmode STDOUT;	106	binmode STDOUT;
60	binmode STDERR;	107	binmode STDERR;
61		108
62	# read virtual server time, if available	109	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
67	}	114	}
68		115
69	mkdir cf::localdir;	116	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		118
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
106		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123		194
124	LOG llevError, $msg;	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
143	)) {	215	)) {
144	no strict 'refs';	216	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	217	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	218	}
147		219
148	$Event::DIED = sub {	220	$EV::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	249	$d
180	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
181	}	251	}
182		252
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	253	=item $ref = cf::decode_json $json
186		254
187	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
188		256
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	257	=item $json = cf::encode_json $ref
197		258
198	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
199		260
200	=cut	261	=cut
201		262
202	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
204	JSON::Syck::Dump $_[0]	265	sub encode_json($) { $json_coder->encode ($_[0]) }
205	}	266	sub decode_json($) { $json_coder->decode ($_[0]) }
206		267
207	=item cf::lock_wait $string	268	=item cf::lock_wait $string
208		269
209	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
210		271
…		…
213	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
214	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
216	returned.	277	returned.
217		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
218	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
220		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
221	=cut	289	=cut
222		290
223	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
224		293
225	sub lock_wait($) {	294	sub lock_wait($) {
226	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
227		301
228	# wait for lock, if any	302	# wait for lock, if any
229	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	305	Coro::schedule;
…		…
237		311
238	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
239	lock_wait $key;	313	lock_wait $key;
240		314
241	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
242		317
243	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
246	}	322	}
247	}	323	}
248		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
249	sub freeze_mainloop {	331	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
251		333
252	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
253	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
254	$guard	338	$guard
		339	}
		340
		341	=item cf::periodic $interval, $cb
		342
		343	Like EV::periodic, but randomly selects a starting point so that the actions
		344	get spread over timer.
		345
		346	=cut
		347
		348	sub periodic($$) {
		349	my ($interval, $cb) = @_;
		350
		351	my $start = rand List::Util::min 180, $interval;
		352
		353	EV::periodic $start, $interval, 0, $cb
		354	}
		355
		356	=item cf::get_slot $time[, $priority[, $name]]
		357
		358	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		359	This call blocks and returns only when you have at least C<$time> seconds
		360	of cpu time till the next tick. The slot is only valid till the next cede.
		361
		362	The optional C<$name> can be used to identify the job to run. It might be
		363	used for statistical purposes and should identify the same time-class.
		364
		365	Useful for short background jobs.
		366
		367	=cut
		368
		369	our @SLOT_QUEUE;
		370	our $SLOT_QUEUE;
		371
		372	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		373	$SLOT_QUEUE = Coro::async {
		374	$Coro::current->desc ("timeslot manager");
		375
		376	my $signal = new Coro::Signal;
		377
		378	while () {
		379	next_job:
		380	my $avail = cf::till_tick;
		381	if ($avail > 0.01) {
		382	for (0 .. $#SLOT_QUEUE) {
		383	if ($SLOT_QUEUE[$_][0] < $avail) {
		384	my $job = splice @SLOT_QUEUE, $_, 1, ();
		385	$job->[2]->send;
		386	Coro::cede;
		387	goto next_job;
		388	}
		389	}
		390	}
		391
		392	if (@SLOT_QUEUE) {
		393	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		394	push @cf::WAIT_FOR_TICK, $signal;
		395	$signal->wait;
		396	} else {
		397	Coro::schedule;
		398	}
		399	}
		400	};
		401
		402	sub get_slot($;$$) {
		403	my ($time, $pri, $name) = @_;
		404
		405	$time = $TICK * .6 if $time > $TICK * .6;
		406	my $sig = new Coro::Signal;
		407
		408	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		409	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		410	$SLOT_QUEUE->ready;
		411	$sig->wait;
255	}	412	}
256		413
257	=item cf::async { BLOCK }	414	=item cf::async { BLOCK }
258		415
259	Currently the same as Coro::async_pool, meaning you cannot use	416	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		421
265	BEGIN { *async = \&Coro::async_pool }	422	BEGIN { *async = \&Coro::async_pool }
266		423
267	=item cf::sync_job { BLOCK }	424	=item cf::sync_job { BLOCK }
268		425
269	The design of crossfire+ requires that the main coro ($Coro::main) is	426	The design of Deliantra requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	427	is always able to handle events or runnable, as Deliantra is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	428	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		429	acceptable.
272		430
273	If it must be done, put the blocking parts into C<sync_job>. This will run	431	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	432	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	433	server will be frozen during this time, so the block should either finish
276	fast or be very important.	434	fast or be very important.
…		…
279		437
280	sub sync_job(&) {	438	sub sync_job(&) {
281	my ($job) = @_;	439	my ($job) = @_;
282		440
283	if ($Coro::current == $Coro::main) {	441	if ($Coro::current == $Coro::main) {
		442	my $time = EV::time;
		443
284	# this is the main coro, too bad, we have to block	444	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	445	# till the operation succeeds, freezing the server :/
286		446
		447	LOG llevError, Carp::longmess "sync job";#d#
		448
287	# TODO: use suspend/resume instead	449	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	450	# (but this is cancel-safe)
289	my $freeze_guard = freeze_mainloop;	451	my $freeze_guard = freeze_mainloop;
290		452
291	my $busy = 1;	453	my $busy = 1;
292	my @res;	454	my @res;
293		455
294	(async {	456	(async {
		457	$Coro::current->desc ("sync job coro");
295	@res = eval { $job->() };	458	@res = eval { $job->() };
296	warn $@ if $@;	459	warn $@ if $@;
297	undef $busy;	460	undef $busy;
298	})->prio (Coro::PRIO_MAX);	461	})->prio (Coro::PRIO_MAX);
299		462
300	while ($busy) {	463	while ($busy) {
301	Coro::cede or Event::one_event;	464	if (Coro::nready) {
		465	Coro::cede_notself;
		466	} else {
		467	EV::loop EV::LOOP_ONESHOT;
302	}	468	}
		469	}
		470
		471	$time = EV::time - $time;
		472
		473	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		474	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		475
		476	$tick_start += $time; # do not account sync jobs to server load
303		477
304	wantarray ? @res : $res[0]	478	wantarray ? @res : $res[0]
305	} else {	479	} else {
306	# we are in another coroutine, how wonderful, everything just works	480	# we are in another coroutine, how wonderful, everything just works
307		481
…		…
309	}	483	}
310	}	484	}
311		485
312	=item $coro = cf::async_ext { BLOCK }	486	=item $coro = cf::async_ext { BLOCK }
313		487
314	Like async, but this coro is automcatially being canceled when the	488	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	489	extension calling this is being unloaded.
316		490
317	=cut	491	=cut
318		492
319	sub async_ext(&) {	493	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	501	$EXT_CORO{$coro+0} = $coro;
328		502
329	$coro	503	$coro
330	}	504	}
331		505
332	sub write_runtime {	506	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		507
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	508	Executes the given code block with the given arguments in a seperate
336	or return;	509	process, returning the results. Everything must be serialisable with
		510	Coro::Storable. May, of course, block. Note that the executed sub may
		511	never block itself or use any form of event handling.
337		512
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	513	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		514
342	aio_fsync $fh	515	sub fork_call(&@) {
343	and return;	516	my ($cb, @args) = @_;
344		517
345	close $fh	518	# we seemingly have to make a local copy of the whole thing,
346	or return;	519	# otherwise perl prematurely frees the stuff :/
		520	# TODO: investigate and fix (likely this will be rather laborious)
347		521
348	aio_rename "$runtime~", $runtime	522	my @res = Coro::Util::fork_eval {
349	and return;	523	reset_signals;
		524	&$cb
		525	}, @args;
350		526
		527	wantarray ? @res : $res[-1]
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=item $db = cf::db_table "name"
		540
		541	Create and/or open a new database table. The string must not be "db" and must be unique
		542	within each server.
		543
		544	=cut
		545
		546	sub db_table($) {
		547	my ($name) = @_;
		548	my $db = BDB::db_create $DB_ENV;
		549
		550	eval {
		551	$db->set_flags (BDB::CHKSUM);
		552
		553	utf8::encode $name;
		554	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		555	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		556	cf::cleanup "db_open(db): $!" if $!;
		557	};
		558	cf::cleanup "db_open(db): $@" if $@;
		559
		560	$db
		561	}
		562
		563	our $DB;
		564
		565	sub db_init {
		566	cf::sync_job {
		567	$DB ||= db_table "db";
		568	};
		569	}
		570
		571	sub db_get($$) {
		572	my $key = "$_[0]/$_[1]";
		573
		574	cf::sync_job {
		575	BDB::db_get $DB, undef, $key, my $data;
		576
		577	$! ? ()
		578	: $data
351	1	579	}
		580	}
		581
		582	sub db_put($$$) {
		583	BDB::dbreq_pri 4;
		584	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		585	}
		586
		587	=item cf::cache $id => [$paths...], $processversion => $process
		588
		589	Generic caching function that returns the value of the resource $id,
		590	caching and regenerating as required.
		591
		592	This function can block.
		593
		594	=cut
		595
		596	sub cache {
		597	my ($id, $src, $processversion, $process) = @_;
		598
		599	my $meta =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	aio_stat $_
		604	and Carp::croak "$_: $!";
		605
		606	($_, (stat _)[7,9])
		607	} @$src;
		608
		609	my $dbmeta = db_get cache => "$id/meta";
		610	if ($dbmeta ne $meta) {
		611	# changed, we may need to process
		612
		613	my @data;
		614	my $md5;
		615
		616	for (0 .. $#$src) {
		617	0 <= aio_load $src->[$_], $data[$_]
		618	or Carp::croak "$src->[$_]: $!";
		619	}
		620
		621	# if processing is expensive, check
		622	# checksum first
		623	if (1) {
		624	$md5 =
		625	join "\x00",
		626	$processversion,
		627	map {
		628	cf::cede_to_tick;
		629	($src->[$_], Digest::MD5::md5_hex $data[$_])
		630	} 0.. $#$src;
		631
		632
		633	my $dbmd5 = db_get cache => "$id/md5";
		634	if ($dbmd5 eq $md5) {
		635	db_put cache => "$id/meta", $meta;
		636
		637	return db_get cache => "$id/data";
		638	}
		639	}
		640
		641	my $t1 = Time::HiRes::time;
		642	my $data = $process->(\@data);
		643	my $t2 = Time::HiRes::time;
		644
		645	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		646
		647	db_put cache => "$id/data", $data;
		648	db_put cache => "$id/md5" , $md5;
		649	db_put cache => "$id/meta", $meta;
		650
		651	return $data;
		652	}
		653
		654	db_get cache => "$id/data"
		655	}
		656
		657	=item cf::datalog type => key => value, ...
		658
		659	Log a datalog packet of the given type with the given key-value pairs.
		660
		661	=cut
		662
		663	sub datalog($@) {
		664	my ($type, %kv) = @_;
		665	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	666	}
353		667
354	=back	668	=back
355		669
356	=cut	670	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		671
480	#############################################################################	672	#############################################################################
481		673
482	=head2 ATTACHABLE OBJECTS	674	=head2 ATTACHABLE OBJECTS
483		675
…		…
485	attach callbacks/event handlers (a collection of which is called an "attachment")	677	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	678	to it. All such attachable objects support the following methods.
487		679
488	In the following description, CLASS can be any of C<global>, C<object>	680	In the following description, CLASS can be any of C<global>, C<object>
489	C<player>, C<client> or C<map> (i.e. the attachable objects in	681	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	682	Deliantra).
491		683
492	=over 4	684	=over 4
493		685
494	=item $attachable->attach ($attachment, key => $value...)	686	=item $attachable->attach ($attachment, key => $value...)
495		687
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	801	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	802	our @CB_MAP = ();
611		803
612	my %attachment;	804	my %attachment;
613		805
		806	sub cf::attachable::thawer_merge {
		807	# simply override everything except _meta
		808	local $_[0]{_meta};
		809	%{$_[0]} = %{$_[1]};
		810	}
		811
614	sub _attach_cb($$$$) {	812	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	813	my ($registry, $event, $prio, $cb) = @_;
616		814
617	use sort 'stable';	815	use sort 'stable';
618		816
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	850	$registry = $CB_TYPE[$object_type] ||= [];
653		851
654	} elsif ($type eq "subtype") {	852	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	853	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	854	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	855	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		856
659	} elsif ($type eq "package") {	857	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	858	my $pkg = shift @arg;
661		859
662	while (my ($name, $id) = each %cb_id) {	860	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	889	_attach $registry, $klass, @attach;
692	}	890	}
693		891
694	$obj->{$name} = \%arg;	892	$obj->{$name} = \%arg;
695	} else {	893	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	894	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	895	}
698		896
699	$obj->{_attachment}{$name} = undef;	897	$obj->{_attachment}{$name} = undef;
700	}	898	}
701		899
…		…
703	if (ref $_[0]) {	901	if (ref $_[0]) {
704	_object_attach @_;	902	_object_attach @_;
705	} else {	903	} else {
706	_attach shift->_attach_registry, @_;	904	_attach shift->_attach_registry, @_;
707	}	905	}
		906	_recalc_want;
708	};	907	};
709		908
710	# all those should be optimised	909	# all those should be optimised
711	sub cf::attachable::detach {	910	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	911	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	914	delete $obj->{_attachment}{$name};
716	reattach ($obj);	915	reattach ($obj);
717	} else {	916	} else {
718	Carp::croak "cannot, currently, detach class attachments";	917	Carp::croak "cannot, currently, detach class attachments";
719	}	918	}
		919	_recalc_want;
720	};	920	};
721		921
722	sub cf::attachable::attached {	922	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
724		924
…		…
739	";	939	";
740	die if $@;	940	die if $@;
741	}	941	}
742		942
743	our $override;	943	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	944	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		945
746	sub override {	946	sub override {
747	$override = 1;	947	$override = 1;
748	@invoke_results = ();	948	@INVOKE_RESULTS = (@_);
749	}	949	}
750		950
751	sub do_invoke {	951	sub do_invoke {
752	my $event = shift;	952	my $event = shift;
753	my $callbacks = shift;	953	my $callbacks = shift;
754		954
755	@invoke_results = ();	955	@INVOKE_RESULTS = ();
756		956
757	local $override;	957	local $override;
758		958
759	for (@$callbacks) {	959	for (@$callbacks) {
760	eval { &{$_->[1]} };	960	eval { &{$_->[1]} };
…		…
777		977
778	Generate an object-specific event with the given arguments.	978	Generate an object-specific event with the given arguments.
779		979
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	980	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
781	removed in future versions), and there is no public API to access override	981	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	982	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		983
784	=back	984	=back
785		985
786	=cut	986	=cut
787		987
788	#############################################################################	988	#############################################################################
789	# object support	989	# object support
		990
		991	sub _object_equal($$);
		992	sub _object_equal($$) {
		993	my ($a, $b) = @_;
		994
		995	return 0 unless (ref $a) eq (ref $b);
		996
		997	if ("HASH" eq ref $a) {
		998	my @ka = keys %$a;
		999	my @kb = keys %$b;
		1000
		1001	return 0 if @ka != @kb;
		1002
		1003	for (0 .. $#ka) {
		1004	return 0 unless $ka[$_] eq $kb[$_];
		1005	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1006	}
		1007
		1008	} elsif ("ARRAY" eq ref $a) {
		1009
		1010	return 0 if @$a != @$b;
		1011
		1012	for (0 .. $#$a) {
		1013	return 0 unless _object_equal $a->[$_], $b->[$_];
		1014	}
		1015
		1016	} elsif ($a ne $b) {
		1017	return 0;
		1018	}
		1019
		1020	1
		1021	}
		1022
		1023	our $SLOW_MERGES;#d#
		1024	sub _can_merge {
		1025	my ($ob1, $ob2) = @_;
		1026
		1027	++$SLOW_MERGES;#d#
		1028
		1029	# we do the slow way here
		1030	return _object_equal $ob1, $ob2
		1031	}
790		1032
791	sub reattach {	1033	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	1034	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	1035	my ($obj) = @_;
		1036
		1037	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		1038
795	my $registry = $obj->registry;	1039	my $registry = $obj->registry;
796		1040
797	@$registry = ();	1041	@$registry = ();
798		1042
…		…
813	cf::attachable->attach (	1057	cf::attachable->attach (
814	prio => -1000000,	1058	prio => -1000000,
815	on_instantiate => sub {	1059	on_instantiate => sub {
816	my ($obj, $data) = @_;	1060	my ($obj, $data) = @_;
817		1061
818	$data = from_json $data;	1062	$data = decode_json $data;
819		1063
820	for (@$data) {	1064	for (@$data) {
821	my ($name, $args) = @$_;	1065	my ($name, $args) = @$_;
822		1066
823	$obj->attach ($name, %{$args || {} });	1067	$obj->attach ($name, %{$args || {} });
…		…
839	sub object_freezer_save {	1083	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1084	my ($filename, $rdata, $objs) = @_;
841		1085
842	sync_job {	1086	sync_job {
843	if (length $$rdata) {	1087	if (length $$rdata) {
		1088	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1089	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1090	$decname, length $$rdata, scalar @$objs;
846		1091
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1092	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1093	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1094	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1095	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1096	close $fh;
852		1097
853	if (@$objs) {	1098	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1099	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1100	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1101	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1102	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1103	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1104	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1105	aio_rename "$filename.pst~", "$filename.pst";
861	}	1106	}
862	} else {	1107	} else {
863	aio_unlink "$filename.pst";	1108	aio_unlink "$filename.pst";
…		…
869	}	1114	}
870	} else {	1115	} else {
871	aio_unlink $filename;	1116	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1117	aio_unlink "$filename.pst";
873	}	1118	}
874	}	1119	};
875	}	1120	}
876		1121
877	sub object_freezer_as_string {	1122	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1123	my ($rdata, $objs) = @_;
879		1124
…		…
891	or return;	1136	or return;
892		1137
893	unless (aio_stat "$filename.pst") {	1138	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1139	(aio_load "$filename.pst", $av) >= 0
895	or return;	1140	or return;
		1141
896	$av = eval { (Storable::thaw $av)->{objs} };	1142	my $st = eval { Coro::Storable::thaw $av };
		1143	$av = $st->{objs};
897	}	1144	}
898		1145
		1146	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1147	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1148	$decname, length $data, scalar @{$av || []};
		1149
901	return ($data, $av);	1150	($data, $av)
902	}	1151	}
		1152
		1153	=head2 COMMAND CALLBACKS
		1154
		1155	=over 4
		1156
		1157	=cut
903		1158
904	#############################################################################	1159	#############################################################################
905	# command handling &c	1160	# command handling &c
906		1161
907	=item cf::register_command $name => \&callback($ob,$args);	1162	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1175	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1176	}
922		1177
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1178	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1179
925	Register a callbackf ro execution when the client sends an extcmd packet.	1180	Register a callback for execution when the client sends an (synchronous)
		1181	extcmd packet. Ext commands will be processed in the order they are
		1182	received by the server, like other user commands. The first argument is
		1183	the logged-in player. Ext commands can only be processed after a player
		1184	has logged in successfully.
926		1185
927	If the callback returns something, it is sent back as if reply was being	1186	If the callback returns something, it is sent back as if reply was being
928	called.	1187	called.
929		1188
		1189	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1190
		1191	Register a callback for execution when the client sends an (asynchronous)
		1192	exticmd packet. Exti commands are processed by the server as soon as they
		1193	are received, i.e. out of order w.r.t. other commands. The first argument
		1194	is a client socket. Exti commands can be received anytime, even before
		1195	log-in.
		1196
		1197	If the callback returns something, it is sent back as if reply was being
		1198	called.
		1199
930	=cut	1200	=cut
931		1201
932	sub register_extcmd {	1202	sub register_extcmd {
933	my ($name, $cb) = @_;	1203	my ($name, $cb) = @_;
934		1204
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1205	$EXTCMD{$name} = $cb;
		1206	}
		1207
		1208	sub register_exticmd {
		1209	my ($name, $cb) = @_;
		1210
		1211	$EXTICMD{$name} = $cb;
939	}	1212	}
940		1213
941	cf::player->attach (	1214	cf::player->attach (
942	on_command => sub {	1215	on_command => sub {
943	my ($pl, $name, $params) = @_;	1216	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1225	cf::override;
953	},	1226	},
954	on_extcmd => sub {	1227	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1228	my ($pl, $buf) = @_;
956		1229
957	my $msg = eval { from_json $buf };	1230	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1231
959	if (ref $msg) {	1232	if (ref $msg) {
		1233	my ($type, $reply, @payload) =
		1234	"ARRAY" eq ref $msg
		1235	? @$msg
		1236	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1237
		1238	my @reply;
		1239
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1240	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1241	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1242	}
		1243
		1244	$pl->ext_reply ($reply, @reply)
		1245	if $reply;
		1246
965	} else {	1247	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1248	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1249	}
968		1250
969	cf::override;	1251	cf::override;
970	},	1252	},
971	);	1253	);
972		1254
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {
980	my ($path) = @_;
981
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;
984	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}
1048
1049	sub load_extensions {	1255	sub load_extensions {
		1256	cf::sync_job {
		1257	my %todo;
		1258
1050	for my $ext (<$LIBDIR/*.ext>) {	1259	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1260	next unless -r $path;
1052	eval {	1261
1053	load_extension $ext;	1262	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1263	my $base = $1;
		1264	my $pkg = $1;
		1265	$pkg =~ s/[^[:word:]]/_/g;
		1266	$pkg = "ext::$pkg";
		1267
		1268	open my $fh, "<:utf8", $path
		1269	or die "$path: $!";
		1270
		1271	my $source = do { local $/; <$fh> };
		1272
		1273	my %ext = (
		1274	path => $path,
		1275	base => $base,
		1276	pkg => $pkg,
		1277	);
		1278
		1279	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1280	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1281
		1282	$ext{source} =
		1283	"package $pkg; use strict; use utf8;\n"
		1284	. "#line 1 \"$path\"\n{\n"
		1285	. $source
		1286	. "\n};\n1";
		1287
		1288	$todo{$base} = \%ext;
		1289	}
		1290
		1291	my %done;
		1292	while (%todo) {
		1293	my $progress;
		1294
		1295	while (my ($k, $v) = each %todo) {
		1296	for (split /,\s*/, $v->{meta}{depends}) {
		1297	goto skip
		1298	unless exists $done{$_};
		1299	}
		1300
		1301	warn "... loading '$k' into '$v->{pkg}'\n";
		1302
		1303	unless (eval $v->{source}) {
		1304	my $msg = $@ ? "$v->{path}: $@\n"
		1305	: "$v->{base}: extension inactive.\n";
		1306
		1307	if (exists $v->{meta}{mandatory}) {
		1308	warn $msg;
		1309	warn "mandatory extension failed to load, exiting.\n";
		1310	exit 1;
		1311	}
		1312
		1313	warn $msg;
		1314	}
		1315
		1316	$done{$k} = delete $todo{$k};
		1317	push @EXTS, $v->{pkg};
		1318	$progress = 1;
1054	1	1319	}
1055	} or warn "$ext not loaded: $@";	1320
		1321	skip:
		1322	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1323	unless $progress;
		1324	}
1056	}	1325	};
1057	}	1326	}
1058		1327
1059	#############################################################################	1328	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1329
1062	*cf::mapsupport::on_clean = sub {	1330	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1331
1097	=head2 CORE EXTENSIONS	1332	=head2 CORE EXTENSIONS
1098		1333
1099	Functions and methods that extend core crossfire objects.	1334	Functions and methods that extend core crossfire objects.
1100		1335
…		…
1106		1341
1107	=head3 cf::player	1342	=head3 cf::player
1108		1343
1109	=over 4	1344	=over 4
1110		1345
		1346	=item cf::player::num_playing
		1347
		1348	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1349
		1350	=cut
		1351
		1352	sub num_playing {
		1353	scalar grep
		1354	$_->ob->map
		1355	&& !$_->hidden
		1356	&& !$_->ob->flag (cf::FLAG_WIZ),
		1357	cf::player::list
		1358	}
		1359
1111	=item cf::player::find $login	1360	=item cf::player::find $login
1112		1361
1113	Returns the given player object, loading it if necessary (might block).	1362	Returns the given player object, loading it if necessary (might block).
1114		1363
1115	=cut	1364	=cut
1116		1365
1117	sub playerdir($) {	1366	sub playerdir($) {
1118	cf::localdir	1367	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1368	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1369	}
1124		1370
1125	sub path($) {	1371	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1372	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1373
1128	(playerdir $login) . "/$login.pl"	1374	(playerdir $login) . "/playerdata"
1129	}	1375	}
1130		1376
1131	sub find_active($) {	1377	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1378	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1379	and $cf::PLAYER{$_[0]}->active
…		…
1136		1382
1137	sub exists($) {	1383	sub exists($) {
1138	my ($login) = @_;	1384	my ($login) = @_;
1139		1385
1140	$cf::PLAYER{$login}	1386	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1387	or cf::sync_job { !aio_stat path $login }
1142	}	1388	}
1143		1389
1144	sub find($) {	1390	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1391	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1392	my $login = $_[0];
1147		1393
1148	my $guard = cf::lock_acquire "user_find:$login";	1394	my $guard = cf::lock_acquire "user_find:$login";
1149		1395
1150	$cf::PLAYER{$_[0]} || do {	1396	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1397	# rename old playerfiles to new ones
		1398	#TODO: remove when no longer required
		1399	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1400	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1401	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1402	aio_unlink +(playerdir $login) . "/$login.pl";
		1403
		1404	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1405	or return;
		1406
		1407	my $pl = cf::player::load_pl $f
		1408	or return;
		1409	local $cf::PLAYER_LOADING{$login} = $pl;
		1410	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1411	$cf::PLAYER{$login} = $pl
1154	}	1412	}
1155	}	1413	}
1156	}	1414	}
1157		1415
…		…
1167		1425
1168	aio_mkdir playerdir $pl, 0770;	1426	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1427	$pl->{last_save} = $cf::RUNTIME;
1170		1428
1171	$pl->save_pl ($path);	1429	$pl->save_pl ($path);
1172	Coro::cede;	1430	cf::cede_to_tick;
1173	}	1431	}
1174		1432
1175	sub new($) {	1433	sub new($) {
1176	my ($login) = @_;	1434	my ($login) = @_;
1177		1435
…		…
1183	$cf::PLAYER{$login} = $self;	1441	$cf::PLAYER{$login} = $self;
1184		1442
1185	$self	1443	$self
1186	}	1444	}
1187		1445
		1446	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1447
		1448	=cut
		1449
		1450	sub send_msg {
		1451	my $ns = shift->ns
		1452	or return;
		1453	$ns->send_msg (@_);
		1454	}
		1455
1188	=item $pl->quit_character	1456	=item $pl->quit_character
1189		1457
1190	Nukes the player without looking back. If logged in, the connection will	1458	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1459	be destroyed. May block for a long time.
1192		1460
1193	=cut	1461	=cut
1194		1462
1195	sub quit_character {	1463	sub quit_character {
1196	my ($pl) = @_;	1464	my ($pl) = @_;
		1465
		1466	my $name = $pl->ob->name;
1197		1467
1198	$pl->{deny_save} = 1;	1468	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1469	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1470
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1471	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1476	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1477	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1478	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1479	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1480	$pl->destroy;
		1481
		1482	my $prefix = qr<^~\Q$name\E/>;
		1483
		1484	# nuke player maps
		1485	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1486
1211	IO::AIO::aio_rmtree $temp;	1487	IO::AIO::aio_rmtree $temp;
		1488	}
		1489
		1490	=item $pl->kick
		1491
		1492	Kicks a player out of the game. This destroys the connection.
		1493
		1494	=cut
		1495
		1496	sub kick {
		1497	my ($pl, $kicker) = @_;
		1498
		1499	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1500	$pl->killer ("kicked");
		1501	$pl->ns->destroy;
1212	}	1502	}
1213		1503
1214	=item cf::player::list_logins	1504	=item cf::player::list_logins
1215		1505
1216	Returns am arrayref of all valid playernames in the system, can take a	1506	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1507	while and may block, so not sync_job-capable, ever.
1218		1508
1219	=cut	1509	=cut
1220		1510
1221	sub list_logins {	1511	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1512	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1513	or return [];
1224		1514
1225	my @logins;	1515	my @logins;
1226		1516
1227	for my $login (@$dirs) {	1517	for my $login (@$dirs) {
		1518	my $path = path $login;
		1519
		1520	# a .pst is a dead give-away for a valid player
		1521	unless (-e "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1522	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1523	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1524	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1525	}
1231		1526
1232	utf8::decode $login;	1527	utf8::decode $login;
1233	push @logins, $login;	1528	push @logins, $login;
1234	}	1529	}
1235		1530
1236	\@logins	1531	\@logins
1237	}	1532	}
1238		1533
1239	=item $player->maps	1534	=item $player->maps
1240		1535
1241	Returns an arrayref of cf::path's of all maps that are private for this	1536	Returns an arrayref of map paths that are private for this
1242	player. May block.	1537	player. May block.
1243		1538
1244	=cut	1539	=cut
1245		1540
1246	sub maps($) {	1541	sub maps($) {
1247	my ($pl) = @_;	1542	my ($pl) = @_;
		1543
		1544	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1545
1249	my $files = aio_readdir playerdir $pl	1546	my $files = aio_readdir playerdir $pl
1250	or return;	1547	or return;
1251		1548
1252	my @paths;	1549	my @paths;
1253		1550
1254	for (@$files) {	1551	for (@$files) {
1255	utf8::decode $_;	1552	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1553	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1554	next unless /^$PATH_SEP/o;
1258		1555
1259	s/$PATH_SEP/\//g;	1556	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1557	}
1262		1558
1263	\@paths	1559	\@paths
1264	}	1560	}
1265		1561
		1562	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1563
		1564	Expand crossfire pod fragments into protocol xml.
		1565
		1566	=cut
		1567
		1568	use re 'eval';
		1569
		1570	my $group;
		1571	my $interior; $interior = qr{
		1572	# match a pod interior sequence sans C<< >>
		1573	(?:
		1574	\ (.*?)\ (?{ $group = $^N })
		1575	| < (??{$interior}) >
		1576	)
		1577	}x;
		1578
		1579	sub expand_cfpod {
		1580	my ($self, $pod) = @_;
		1581
		1582	my $xml;
		1583
		1584	while () {
		1585	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1586	$group = $1;
		1587
		1588	$group =~ s/&/&amp;/g;
		1589	$group =~ s/</&lt;/g;
		1590
		1591	$xml .= $group;
		1592	} elsif ($pod =~ m%\G
		1593	([BCGHITU])
		1594	<
		1595	(?:
		1596	([^<>]*) (?{ $group = $^N })
		1597	| < $interior >
		1598	)
		1599	>
		1600	%gcsx
		1601	) {
		1602	my ($code, $data) = ($1, $group);
		1603
		1604	if ($code eq "B") {
		1605	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1606	} elsif ($code eq "I") {
		1607	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1608	} elsif ($code eq "U") {
		1609	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1610	} elsif ($code eq "C") {
		1611	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1612	} elsif ($code eq "T") {
		1613	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1614	} elsif ($code eq "G") {
		1615	my ($male, $female) = split /\|/, $data;
		1616	$data = $self->gender ? $female : $male;
		1617	$xml .= expand_cfpod ($self, $data);
		1618	} elsif ($code eq "H") {
		1619	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1620	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1621	"")
		1622	[$self->{hintmode}];
		1623	} else {
		1624	$xml .= "error processing '$code($data)' directive";
		1625	}
		1626	} else {
		1627	if ($pod =~ /\G(.+)/) {
		1628	warn "parse error while expanding $pod (at $1)";
		1629	}
		1630	last;
		1631	}
		1632	}
		1633
		1634	for ($xml) {
		1635	# create single paragraphs (very hackish)
		1636	s/(?<=\S)\n(?=\w)/ /g;
		1637
		1638	# compress some whitespace
		1639	s/\s+\n/\n/g; # ws line-ends
		1640	s/\n\n+/\n/g; # double lines
		1641	s/^\n+//; # beginning lines
		1642	s/\n+$//; # ending lines
		1643	}
		1644
		1645	$xml
		1646	}
		1647
		1648	no re 'eval';
		1649
		1650	sub hintmode {
		1651	$_[0]{hintmode} = $_[1] if @_ > 1;
		1652	$_[0]{hintmode}
		1653	}
		1654
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1655	=item $player->ext_reply ($msgid, @msg)
1267		1656
1268	Sends an ext reply to the player.	1657	Sends an ext reply to the player.
1269		1658
1270	=cut	1659	=cut
1271		1660
1272	sub ext_reply($$$%) {	1661	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1662	my ($self, $id, @msg) = @_;
1274		1663
1275	$msg{msgid} = $id;	1664	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1665	}
1279		1666
1280	package cf;	1667	=item $player->ext_msg ($type, @msg)
		1668
		1669	Sends an ext event to the client.
		1670
		1671	=cut
		1672
		1673	sub ext_msg($$@) {
		1674	my ($self, $type, @msg) = @_;
		1675
		1676	$self->ns->ext_msg ($type, @msg);
		1677	}
		1678
		1679	=head3 cf::region
		1680
		1681	=over 4
		1682
		1683	=cut
		1684
		1685	package cf::region;
		1686
		1687	=item cf::region::find_by_path $path
		1688
		1689	Tries to decuce the likely region for a map knowing only its path.
		1690
		1691	=cut
		1692
		1693	sub find_by_path($) {
		1694	my ($path) = @_;
		1695
		1696	my ($match, $specificity);
		1697
		1698	for my $region (list) {
		1699	if ($region->{match} && $path =~ $region->{match}) {
		1700	($match, $specificity) = ($region, $region->specificity)
		1701	if $region->specificity > $specificity;
		1702	}
		1703	}
		1704
		1705	$match
		1706	}
1281		1707
1282	=back	1708	=back
1283
1284		1709
1285	=head3 cf::map	1710	=head3 cf::map
1286		1711
1287	=over 4	1712	=over 4
1288		1713
…		…
1291	package cf::map;	1716	package cf::map;
1292		1717
1293	use Fcntl;	1718	use Fcntl;
1294	use Coro::AIO;	1719	use Coro::AIO;
1295		1720
		1721	use overload
		1722	'""' => \&as_string,
		1723	fallback => 1;
		1724
1296	our $MAX_RESET = 3600;	1725	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1726	our $DEFAULT_RESET = 3000;
1298		1727
1299	sub generate_random_map {	1728	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1729	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1730	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1731	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1732	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1733	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1734	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1735	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1736	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1737	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1738	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1739	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1740	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1741	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1742	(cf::region::find $rmp->{region}), $rmp->{custom}
		1743	)
		1744	}
		1745
		1746	=item cf::map->register ($regex, $prio)
		1747
		1748	Register a handler for the map path matching the given regex at the
		1749	givne priority (higher is better, built-in handlers have priority 0, the
		1750	default).
		1751
		1752	=cut
		1753
		1754	sub register {
		1755	my (undef, $regex, $prio) = @_;
		1756	my $pkg = caller;
		1757
		1758	no strict;
		1759	push @{"$pkg\::ISA"}, __PACKAGE__;
		1760
		1761	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1762	}
		1763
		1764	# also paths starting with '/'
		1765	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1766
		1767	sub thawer_merge {
		1768	my ($self, $merge) = @_;
		1769
		1770	# we have to keep some variables in memory intact
		1771	local $self->{path};
		1772	local $self->{load_path};
		1773
		1774	$self->SUPER::thawer_merge ($merge);
		1775	}
		1776
		1777	sub normalise {
		1778	my ($path, $base) = @_;
		1779
		1780	$path = "$path"; # make sure its a string
		1781
		1782	$path =~ s/\.map$//;
		1783
		1784	# map plan:
		1785	#
		1786	# /! non-realised random map exit (special hack!)
		1787	# {... are special paths that are not being touched
		1788	# ?xxx/... are special absolute paths
		1789	# ?random/... random maps
		1790	# /... normal maps
		1791	# ~user/... per-player map of a specific user
		1792
		1793	$path =~ s/$PATH_SEP/\//go;
		1794
		1795	# treat it as relative path if it starts with
		1796	# something that looks reasonable
		1797	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1798	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1799
		1800	$base =~ s{[^/]+/?$}{};
		1801	$path = "$base/$path";
		1802	}
		1803
		1804	for ($path) {
		1805	redo if s{//}{/};
		1806	redo if s{/\.?/}{/};
		1807	redo if s{/[^/]+/\.\./}{/};
		1808	}
		1809
		1810	$path
		1811	}
		1812
		1813	sub new_from_path {
		1814	my (undef, $path, $base) = @_;
		1815
		1816	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1817
		1818	$path = normalise $path, $base;
		1819
		1820	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1821	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1822	my $self = bless cf::map::new, $pkg;
		1823	$self->{path} = $path; $self->path ($path);
		1824	$self->init; # pass $1 etc.
		1825	return $self;
		1826	}
		1827	}
		1828
		1829	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1830	()
		1831	}
		1832
		1833	sub init {
		1834	my ($self) = @_;
		1835
		1836	$self
		1837	}
		1838
		1839	sub as_string {
		1840	my ($self) = @_;
		1841
		1842	"$self->{path}"
		1843	}
		1844
		1845	# the displayed name, this is a one way mapping
		1846	sub visible_name {
		1847	&as_string
		1848	}
		1849
		1850	# the original (read-only) location
		1851	sub load_path {
		1852	my ($self) = @_;
		1853
		1854	"$MAPDIR/$self->{path}.map"
		1855	}
		1856
		1857	# the temporary/swap location
		1858	sub save_path {
		1859	my ($self) = @_;
		1860
		1861	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1862	"$TMPDIR/$path.map"
		1863	}
		1864
		1865	# the unique path, undef == no special unique path
		1866	sub uniq_path {
		1867	my ($self) = @_;
		1868
		1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1870	"$UNIQUEDIR/$path"
1316	}	1871	}
1317		1872
1318	# and all this just because we cannot iterate over	1873	# and all this just because we cannot iterate over
1319	# all maps in C++...	1874	# all maps in C++...
1320	sub change_all_map_light {	1875	sub change_all_map_light {
…		…
1322		1877
1323	$_->change_map_light ($change)	1878	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1879	for grep $_->outdoor, values %cf::MAP;
1325	}	1880	}
1326		1881
		1882	sub decay_objects {
		1883	my ($self) = @_;
		1884
		1885	return if $self->{deny_reset};
		1886
		1887	$self->do_decay_objects;
		1888	}
		1889
		1890	sub unlink_save {
		1891	my ($self) = @_;
		1892
		1893	utf8::encode (my $save = $self->save_path);
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1895	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1896	}
		1897
1327	sub try_load_header($) {	1898	sub load_header_from($) {
1328	my ($path) = @_;	1899	my ($self, $path) = @_;
1329		1900
1330	utf8::encode $path;	1901	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1902	my $f = new_from_file cf::object::thawer $path
1332	or return;	1903	or return;
1333		1904
1334	my $map = cf::map::new	1905	$self->_load_header ($f)
1335	or return;	1906	or return;
1336		1907
1337	# for better error messages only, will be overwritten	1908	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1909	$f->resolve_delayed_derefs;
1339		1910
1340	$map->load_header ($path)	1911	$self->{load_path} = $path;
		1912
		1913	1
		1914	}
		1915
		1916	sub load_header_orig {
		1917	my ($self) = @_;
		1918
		1919	$self->load_header_from ($self->load_path)
		1920	}
		1921
		1922	sub load_header_temp {
		1923	my ($self) = @_;
		1924
		1925	$self->load_header_from ($self->save_path)
		1926	}
		1927
		1928	sub prepare_temp {
		1929	my ($self) = @_;
		1930
		1931	$self->last_access ((delete $self->{last_access})
		1932	|| $cf::RUNTIME); #d#
		1933	# safety
		1934	$self->{instantiate_time} = $cf::RUNTIME
		1935	if $self->{instantiate_time} > $cf::RUNTIME;
		1936	}
		1937
		1938	sub prepare_orig {
		1939	my ($self) = @_;
		1940
		1941	$self->{load_original} = 1;
		1942	$self->{instantiate_time} = $cf::RUNTIME;
		1943	$self->last_access ($cf::RUNTIME);
		1944	$self->instantiate;
		1945	}
		1946
		1947	sub load_header {
		1948	my ($self) = @_;
		1949
		1950	if ($self->load_header_temp) {
		1951	$self->prepare_temp;
		1952	} else {
		1953	$self->load_header_orig
1341	or return;	1954	or return;
		1955	$self->prepare_orig;
		1956	}
1342		1957
1343	$map->{load_path} = $path;	1958	$self->{deny_reset} = 1
		1959	if $self->no_reset;
1344		1960
1345	$map	1961	$self->default_region (cf::region::find_by_path $self->{path})
		1962	unless $self->default_region;
		1963
		1964	1
1346	}	1965	}
1347		1966
1348	sub find;	1967	sub find;
1349	sub find {	1968	sub find {
1350	my ($path, $origin) = @_;	1969	my ($path, $origin) = @_;
1351		1970
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1971	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1972
		1973	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1974	cf::lock_wait "map_find:$path";
1358		1975
1359	$cf::MAP{$key} || do {	1976	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1977	my $guard1 = cf::lock_acquire "map_find:$path";
		1978	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1979
1362	# do it the slow way	1980	my $map = new_from_path cf::map $path
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1981	or return;
1381		1982
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1983	$map->{last_save} = $cf::RUNTIME;
1394		1984
1395	Coro::cede;	1985	$map->load_header
		1986	or return;
1396		1987
1397	if ($map->should_reset) {	1988	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1989	# doing this can freeze the server in a sync job, obviously
		1990	#$cf::WAIT_FOR_TICK->wait;
		1991	undef $guard1;
		1992	undef $guard2;
1398	$map->reset;	1993	$map->reset;
1399	undef $guard;
1400	$map = find $path	1994	return find $path;
1401	or return;
1402	}	1995	}
1403		1996
1404	$cf::MAP{$key} = $map	1997	$cf::MAP{$path} = $map
1405	}	1998	}
1406	}	1999	}
		2000
		2001	sub pre_load { }
		2002	sub post_load { }
1407		2003
1408	sub load {	2004	sub load {
1409	my ($self) = @_;	2005	my ($self) = @_;
1410		2006
		2007	local $self->{deny_reset} = 1; # loading can take a long time
		2008
1411	my $path = $self->{path};	2009	my $path = $self->{path};
		2010
		2011	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2012	my $guard = cf::lock_acquire "map_data:$path";
1413		2013
		2014	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	2015	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		2016
1416	$self->in_memory (cf::MAP_LOADING);	2017	$self->in_memory (cf::MAP_LOADING);
1417		2018
1418	$self->alloc;	2019	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	2020
		2021	$self->pre_load;
		2022	cf::cede_to_tick;
		2023
		2024	my $f = new_from_file cf::object::thawer $self->{load_path};
		2025	$f->skip_block;
		2026	$self->_load_objects ($f)
1420	or return;	2027	or return;
1421		2028
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2029	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	2030	if delete $self->{load_original};
1424		2031
1425	if (my $uniq = $path->uniq_path) {	2032	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2033	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2034	unless (aio_stat $uniq) {
		2035	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2036	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	2037	$self->_load_objects ($f);
		2038	$f->resolve_delayed_derefs;
		2039	}
1430	}	2040	}
1431	}	2041	}
1432		2042
1433	Coro::cede;	2043	$f->resolve_delayed_derefs;
1434		2044
		2045	cf::cede_to_tick;
1435	# now do the right thing for maps	2046	# now do the right thing for maps
1436	$self->link_multipart_objects;	2047	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	2048	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	2049	unless $self->difficulty;
		2050	cf::cede_to_tick;
		2051
		2052	unless ($self->{deny_activate}) {
		2053	$self->decay_objects;
		2054	$self->fix_auto_apply;
		2055	$self->update_buttons;
		2056	cf::cede_to_tick;
		2057	$self->set_darkness_map;
		2058	cf::cede_to_tick;
1448	$self->activate;	2059	$self->activate;
1449	}	2060	}
1450		2061
1451	Coro::cede;	2062	$self->{last_save} = $cf::RUNTIME;
		2063	$self->last_access ($cf::RUNTIME);
1452		2064
1453	$self->in_memory (cf::MAP_IN_MEMORY);	2065	$self->in_memory (cf::MAP_IN_MEMORY);
		2066	}
		2067
		2068	$self->post_load;
		2069	}
		2070
		2071	sub customise_for {
		2072	my ($self, $ob) = @_;
		2073
		2074	return find "~" . $ob->name . "/" . $self->{path}
		2075	if $self->per_player;
		2076
		2077	# return find "?party/" . $ob->name . "/" . $self->{path}
		2078	# if $self->per_party;
		2079
		2080	$self
		2081	}
		2082
		2083	# find and load all maps in the 3x3 area around a map
		2084	sub load_neighbours {
		2085	my ($map) = @_;
		2086
		2087	my @neigh; # diagonal neighbours
		2088
		2089	for (0 .. 3) {
		2090	my $neigh = $map->tile_path ($_)
		2091	or next;
		2092	$neigh = find $neigh, $map
		2093	or next;
		2094	$neigh->load;
		2095
		2096	push @neigh,
		2097	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2098	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2099	}
		2100
		2101	for (grep defined $_->[0], @neigh) {
		2102	my ($path, $origin) = @$_;
		2103	my $neigh = find $path, $origin
		2104	or next;
		2105	$neigh->load;
		2106	}
1454	}	2107	}
1455		2108
1456	sub find_sync {	2109	sub find_sync {
1457	my ($path, $origin) = @_;	2110	my ($path, $origin) = @_;
1458		2111
1459	cf::sync_job { cf::map::find $path, $origin }	2112	cf::sync_job { find $path, $origin }
1460	}	2113	}
1461		2114
1462	sub do_load_sync {	2115	sub do_load_sync {
1463	my ($map) = @_;	2116	my ($map) = @_;
1464		2117
		2118	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2119	if $Coro::current == $Coro::main;
		2120
1465	cf::sync_job { $map->load };	2121	cf::sync_job { $map->load };
		2122	}
		2123
		2124	our %MAP_PREFETCH;
		2125	our $MAP_PREFETCHER = undef;
		2126
		2127	sub find_async {
		2128	my ($path, $origin, $load) = @_;
		2129
		2130	$path = normalise $path, $origin && $origin->{path};
		2131
		2132	if (my $map = $cf::MAP{$path}) {
		2133	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2134	}
		2135
		2136	$MAP_PREFETCH{$path} |= $load;
		2137
		2138	$MAP_PREFETCHER ||= cf::async {
		2139	$Coro::current->{desc} = "map prefetcher";
		2140
		2141	while (%MAP_PREFETCH) {
		2142	while (my ($k, $v) = each %MAP_PREFETCH) {
		2143	if (my $map = find $k) {
		2144	$map->load if $v;
		2145	}
		2146
		2147	delete $MAP_PREFETCH{$k};
		2148	}
		2149	}
		2150	undef $MAP_PREFETCHER;
		2151	};
		2152	$MAP_PREFETCHER->prio (6);
		2153
		2154	()
1466	}	2155	}
1467		2156
1468	sub save {	2157	sub save {
1469	my ($self) = @_;	2158	my ($self) = @_;
1470		2159
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2160	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2161
1473	$self->{last_save} = $cf::RUNTIME;	2162	$self->{last_save} = $cf::RUNTIME;
1474		2163
1475	return unless $self->dirty;	2164	return unless $self->dirty;
1476		2165
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2166	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2167	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2168
1480	$self->{load_path} = $save;	2169	$self->{load_path} = $save;
1481		2170
1482	return if $self->{deny_save};	2171	return if $self->{deny_save};
1483		2172
1484	local $self->{last_access} = $self->last_access;#d#	2173	local $self->{last_access} = $self->last_access;#d#
1485		2174
1486	cf::async {	2175	cf::async {
		2176	$Coro::current->{desc} = "map player save";
1487	$_->contr->save for $self->players;	2177	$_->contr->save for $self->players;
1488	};	2178	};
1489		2179
1490	if ($uniq) {	2180	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2181	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2182	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2183	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2184	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2185	}
1496	}	2186	}
1497		2187
1498	sub swap_out {	2188	sub swap_out {
1499	my ($self) = @_;	2189	my ($self) = @_;
1500		2190
1501	# save first because save cedes	2191	# save first because save cedes
1502	$self->save;	2192	$self->save;
1503		2193
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2194	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2195
1506	return if $self->players;	2196	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2197	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2198	return if $self->{deny_save};
1509		2199
		2200	$self->in_memory (cf::MAP_SWAPPED);
		2201
		2202	$self->deactivate;
		2203	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2204	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2205	}
1513		2206
1514	sub reset_at {	2207	sub reset_at {
1515	my ($self) = @_;	2208	my ($self) = @_;
1516		2209
1517	# TODO: safety, remove and allow resettable per-player maps	2210	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2211	return 1e99 if $self->{deny_reset};
1520		2212
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2213	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2214	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2215
…		…
1528	my ($self) = @_;	2220	my ($self) = @_;
1529		2221
1530	$self->reset_at <= $cf::RUNTIME	2222	$self->reset_at <= $cf::RUNTIME
1531	}	2223	}
1532		2224
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2225	sub reset {
1555	my ($self) = @_;	2226	my ($self) = @_;
1556		2227
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2228	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2229
1559	return if $self->players;	2230	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2231
1562	warn "resetting map ", $self->path;#d#	2232	warn "resetting map ", $self->path;
		2233
		2234	$self->in_memory (cf::MAP_SWAPPED);
		2235
		2236	# need to save uniques path
		2237	unless ($self->{deny_save}) {
		2238	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2239
		2240	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2241	if $uniq;
		2242	}
1563		2243
1564	delete $cf::MAP{$self->path};	2244	delete $cf::MAP{$self->path};
1565		2245
		2246	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2247	$_->clear_links_to ($self) for values %cf::MAP;
		2248	$self->clear;
1567		2249
1568	$self->unlink_save;	2250	$self->unlink_save;
1569	$self->destroy;	2251	$self->destroy;
1570	}	2252	}
1571		2253
1572	my $nuke_counter = "aaaa";	2254	my $nuke_counter = "aaaa";
1573		2255
1574	sub nuke {	2256	sub nuke {
1575	my ($self) = @_;	2257	my ($self) = @_;
1576		2258
		2259	{
		2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2261
		2262	delete $cf::MAP{$self->path};
		2263
		2264	$self->unlink_save;
		2265
		2266	bless $self, "cf::map";
		2267	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2268	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2269	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2270	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2271
		2272	$cf::MAP{$self->path} = $self;
		2273	}
		2274
1580	$self->reset; # polite request, might not happen	2275	$self->reset; # polite request, might not happen
1581	}	2276	}
1582		2277
1583	sub customise_for {	2278	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2279
1586	if ($map->per_player) {	2280	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2281	maps. May block.
		2282
		2283	=cut
		2284
		2285	sub tmp_maps() {
1588	}	2286	[
1589		2287	map {
1590	$map	2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise $_
		2291	: ()
		2292	} @{ aio_readdir $TMPDIR or [] }
		2293	]
1591	}	2294	}
1592		2295
1593	sub emergency_save {	2296	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2297
1596	warn "enter emergency perl save\n";	2298	Returns an arrayref with all map paths of currently instantiated and saved
		2299	random maps. May block.
1597		2300
1598	cf::sync_job {	2301	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2302
1603	warn "begin emergency map save\n";	2303	sub random_maps() {
1604	$_->save for values %cf::MAP;	2304	[
1605	warn "end emergency map save\n";	2305	map {
1606	};	2306	utf8::decode $_;
		2307	/\.map$/
		2308	? normalise "?random/$_"
		2309	: ()
		2310	} @{ aio_readdir $RANDOMDIR or [] }
		2311	]
		2312	}
1607		2313
1608	warn "leave emergency perl save\n";	2314	=item cf::map::unique_maps
		2315
		2316	Returns an arrayref of paths of all shared maps that have
		2317	instantiated unique items. May block.
		2318
		2319	=cut
		2320
		2321	sub unique_maps() {
		2322	[
		2323	map {
		2324	utf8::decode $_;
		2325	/\.map$/
		2326	? normalise $_
		2327	: ()
		2328	} @{ aio_readdir $UNIQUEDIR or [] }
		2329	]
1609	}	2330	}
1610		2331
1611	package cf;	2332	package cf;
1612		2333
1613	=back	2334	=back
1614		2335
		2336	=head3 cf::object
		2337
		2338	=cut
		2339
		2340	package cf::object;
		2341
		2342	=over 4
		2343
		2344	=item $ob->inv_recursive
		2345
		2346	Returns the inventory of the object _and_ their inventories, recursively.
		2347
		2348	=cut
		2349
		2350	sub inv_recursive_;
		2351	sub inv_recursive_ {
		2352	map { $_, inv_recursive_ $_->inv } @_
		2353	}
		2354
		2355	sub inv_recursive {
		2356	inv_recursive_ inv $_[0]
		2357	}
		2358
		2359	=item $ref = $ob->ref
		2360
		2361	creates and returns a persistent reference to an objetc that can be stored as a string.
		2362
		2363	=item $ob = cf::object::deref ($refstring)
		2364
		2365	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2366	even if the object actually exists. May block.
		2367
		2368	=cut
		2369
		2370	sub deref {
		2371	my ($ref) = @_;
		2372
		2373	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2374	my ($uuid, $name) = ($1, $2);
		2375	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2376	or return;
		2377	$pl->ob->uuid eq $uuid
		2378	or return;
		2379
		2380	$pl->ob
		2381	} else {
		2382	warn "$ref: cannot resolve object reference\n";
		2383	undef
		2384	}
		2385	}
		2386
		2387	package cf;
		2388
		2389	=back
1615		2390
1616	=head3 cf::object::player	2391	=head3 cf::object::player
1617		2392
1618	=over 4	2393	=over 4
1619		2394
…		…
1633		2408
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2410
1636	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1638	} else {	2414	} else {
		2415	my $pl = $self->contr;
		2416
		2417	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2418	my $dialog = $pl->{npc_dialog};
		2419	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2420
		2421	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2423	$self->message ($msg, $flags);
		2424	}
1641	}	2425	}
		2426	}
		2427
		2428	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2429
		2430	=cut
		2431
		2432	sub cf::object::send_msg {
		2433	my $pl = shift->contr
		2434	or return;
		2435	$pl->send_msg (@_);
1642	}	2436	}
1643		2437
1644	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1645		2439
1646	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1659		2453
1660	=item $player_object->enter_link	2454	=item $player_object->enter_link
1661		2455
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2456	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2457
1664	The player should be reaosnably safe there for short amounts of time. You	2458	The player should be reasonably safe there for short amounts of time. You
1665	I<MUST> call C<leave_link> as soon as possible, though.	2459	I<MUST> call C<leave_link> as soon as possible, though.
1666		2460
		2461	Will never block.
		2462
1667	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1668		2464
1669	Moves the player out of the specila link map onto the given map. If the	2465	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2466	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2467	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2468	fails, to the emergency map position.
1673		2469
1674	Might block.	2470	Might block.
1675		2471
1676	=cut	2472	=cut
		2473
		2474	sub link_map {
		2475	unless ($LINK_MAP) {
		2476	$LINK_MAP = cf::map::find "{link}"
		2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2478	$LINK_MAP->load;
		2479	}
		2480
		2481	$LINK_MAP
		2482	}
1677		2483
1678	sub cf::object::player::enter_link {	2484	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2485	my ($self) = @_;
1680		2486
1681	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1682		2488
1683	return if $self->map == $LINK_MAP;	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2490
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1687		2493
1688	$self->enter_map ($LINK_MAP, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2495	}
1690		2496
1691	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1693		2501
1694	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1695		2503
1696	unless ($map) {	2504	unless ($map) {
1697	# restore original map position	2505	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1714		2522
1715	$map->load;	2523	$map->load;
		2524	$map->load_neighbours;
1716		2525
1717	return unless $self->contr->active;	2526	return unless $self->contr->active;
1718	$self->activate_recursive;	2527	$self->activate_recursive;
		2528
		2529	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2530	$self->enter_map ($map, $x, $y);
1720	}	2531	}
1721		2532
1722	cf::player->attach (	2533	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2534
1726	# abort map switching before logout	2535	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2536	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2537	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2538	the new (success) or old (failed) map position. In either case, $done will
1730	};	2539	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2540
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)
1755
1756	=cut	2541	=cut
		2542
		2543	our $GOTOGEN;
1757		2544
1758	sub cf::object::player::goto {	2545	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2546	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2547
1761	$path = new cf::path $path;	2548	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2549	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2550
1764	$self->enter_link;	2551	$self->enter_link;
1765		2552
1766	(async {	2553	(async {
1767	my $map = cf::map::find $path->as_string;	2554	$Coro::current->{desc} = "player::goto $path $x $y";
		2555
		2556	# *tag paths override both path and x|y
		2557	if ($path =~ /^\*(.*)$/) {
		2558	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2559	my $ob = $obs[rand @obs];
		2560
		2561	# see if we actually can go there
		2562	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2563	$ob = $obs[rand @obs];
		2564	} else {
		2565	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2566	}
		2567	# else put us there anyways for now #d#
		2568
		2569	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2570	} else {
		2571	($path, $x, $y) = (undef, undef, undef);
		2572	}
		2573	}
		2574
		2575	my $map = eval {
		2576	my $map = defined $path ? cf::map::find $path : undef;
		2577
		2578	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2579	$map = $map->customise_for ($self);
1769		2580	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2581	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2582	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
1774		2584
		2585	$map
		2586	};
		2587
		2588	if ($@) {
		2589	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2590	LOG llevError | logBacktrace, Carp::longmess $@;
		2591	}
		2592
		2593	if ($gen == $self->{_goto_generation}) {
		2594	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2595	$self->leave_link ($map, $x, $y);
		2596	}
		2597
		2598	$done->() if $done;
1776	})->prio (1);	2599	})->prio (1);
1777	}	2600	}
1778		2601
1779	=item $player_object->enter_exit ($exit_object)	2602	=item $player_object->enter_exit ($exit_object)
1780		2603
…		…
1782		2605
1783	sub parse_random_map_params {	2606	sub parse_random_map_params {
1784	my ($spec) = @_;	2607	my ($spec) = @_;
1785		2608
1786	my $rmp = { # defaults	2609	my $rmp = { # defaults
1787	xsize => 10,	2610	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2611	ysize => (cf::rndm 15, 40),
		2612	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2613	#layout => string,
1789	};	2614	};
1790		2615
1791	for (split /\n/, $spec) {	2616	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2617	my ($k, $v) = split /\s+/, $_, 2;
1793		2618
…		…
1797	$rmp	2622	$rmp
1798	}	2623	}
1799		2624
1800	sub prepare_random_map {	2625	sub prepare_random_map {
1801	my ($exit) = @_;	2626	my ($exit) = @_;
		2627
		2628	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2629
1803	# all this does is basically replace the /! path by	2630	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2631	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2632	# that depends on the exit object
1806		2633
1807	my $rmp = parse_random_map_params $exit->msg;	2634	my $rmp = parse_random_map_params $exit->msg;
1808		2635
1809	if ($exit->map) {	2636	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2637	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2638	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2639	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2640	$rmp->{origin_y} = $exit->y;
1814	}	2641	}
1815		2642
1816	$rmp->{random_seed} ||= $exit->random_seed;	2643	$rmp->{random_seed} ||= $exit->random_seed;
1817		2644
1818	my $data = cf::to_json $rmp;	2645	my $data = cf::encode_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2646	my $md5 = Digest::MD5::md5_hex $data;
		2647	my $meta = "$RANDOMDIR/$md5.meta";
1820		2648
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2649	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2650	aio_write $fh, 0, (length $data), $data, 0;
		2651	undef $fh;
		2652	aio_rename "$meta~", $meta;
1823		2653
1824	$exit->slaying ("?random/$md5");	2654	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2655	$exit->msg (undef);
1826	}	2656	}
1827	}	2657	}
…		…
1829	sub cf::object::player::enter_exit {	2659	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2660	my ($self, $exit) = @_;
1831		2661
1832	return unless $self->type == cf::PLAYER;	2662	return unless $self->type == cf::PLAYER;
1833		2663
		2664	if ($exit->slaying eq "/!") {
		2665	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2666	# the problem is that $exit might not survive long enough
		2667	# so it needs to be done right now, right here
		2668	cf::sync_job { prepare_random_map $exit };
		2669	}
		2670
		2671	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2672	my $hp = $exit->stats->hp;
		2673	my $sp = $exit->stats->sp;
		2674
1834	$self->enter_link;	2675	$self->enter_link;
1835		2676
		2677	# if exit is damned, update players death & WoR home-position
		2678	$self->contr->savebed ($slaying, $hp, $sp)
		2679	if $exit->flag (FLAG_DAMNED);
		2680
1836	(async {	2681	(async {
		2682	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2683
1837	$self->deactivate_recursive; # just to be sure	2684	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2685	unless (eval {
1839	prepare_random_map $exit	2686	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2687
1845	1;	2688	1;
1846	}) {	2689	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2690	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2691	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2692	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2693	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2694
1852	warn "ERROR in enter_exit: $@";	2695	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2696	$self->leave_link;
1854	}	2697	}
1855	})->prio (1);	2698	})->prio (1);
…		…
1868		2711
1869	sub cf::client::send_drawinfo {	2712	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2713	my ($self, $text, $flags) = @_;
1871		2714
1872	utf8::encode $text;	2715	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2716	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2717	}
1875		2718
		2719	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2720
		2721	Send a drawinfo or msg packet to the client, formatting the msg for the
		2722	client if neccessary. C<$type> should be a string identifying the type of
		2723	the message, with C<log> being the default. If C<$color> is negative, suppress
		2724	the message unless the client supports the msg packet.
		2725
		2726	=cut
		2727
		2728	# non-persistent channels (usually the info channel)
		2729	our %CHANNEL = (
		2730	"c/identify" => {
		2731	id => "infobox",
		2732	title => "Identify",
		2733	reply => undef,
		2734	tooltip => "Items recently identified",
		2735	},
		2736	"c/examine" => {
		2737	id => "infobox",
		2738	title => "Examine",
		2739	reply => undef,
		2740	tooltip => "Signs and other items you examined",
		2741	},
		2742	"c/book" => {
		2743	id => "infobox",
		2744	title => "Book",
		2745	reply => undef,
		2746	tooltip => "The contents of a note or book",
		2747	},
		2748	"c/lookat" => {
		2749	id => "infobox",
		2750	title => "Look",
		2751	reply => undef,
		2752	tooltip => "What you saw there",
		2753	},
		2754	"c/who" => {
		2755	id => "infobox",
		2756	title => "Players",
		2757	reply => undef,
		2758	tooltip => "Shows players who are currently online",
		2759	},
		2760	"c/body" => {
		2761	id => "infobox",
		2762	title => "Body Parts",
		2763	reply => undef,
		2764	tooltip => "Shows which body parts you posess and are available",
		2765	},
		2766	"c/uptime" => {
		2767	id => "infobox",
		2768	title => "Uptime",
		2769	reply => undef,
		2770	tooltip => "How long the server has been running since last restart",
		2771	},
		2772	"c/mapinfo" => {
		2773	id => "infobox",
		2774	title => "Map Info",
		2775	reply => undef,
		2776	tooltip => "Information related to the maps",
		2777	},
		2778	);
		2779
		2780	sub cf::client::send_msg {
		2781	my ($self, $channel, $msg, $color, @extra) = @_;
		2782
		2783	$msg = $self->pl->expand_cfpod ($msg);
		2784
		2785	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2786
		2787	# check predefined channels, for the benefit of C
		2788	if ($CHANNEL{$channel}) {
		2789	$channel = $CHANNEL{$channel};
		2790
		2791	$self->ext_msg (channel_info => $channel)
		2792	if $self->can_msg;
		2793
		2794	$channel = $channel->{id};
		2795
		2796	} elsif (ref $channel) {
		2797	# send meta info to client, if not yet sent
		2798	unless (exists $self->{channel}{$channel->{id}}) {
		2799	$self->{channel}{$channel->{id}} = $channel;
		2800	$self->ext_msg (channel_info => $channel)
		2801	if $self->can_msg;
		2802	}
		2803
		2804	$channel = $channel->{id};
		2805	}
		2806
		2807	return unless @extra || length $msg;
		2808
		2809	if ($self->can_msg) {
		2810	# default colour, mask it out
		2811	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2812	if $color & cf::NDI_DEF;
		2813
		2814	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2815	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2816	} else {
		2817	if ($color >= 0) {
		2818	# replace some tags by gcfclient-compatible ones
		2819	for ($msg) {
		2820	1 while
		2821	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2822	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2823	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2824	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2825	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2826	}
		2827
		2828	$color &= cf::NDI_COLOR_MASK;
		2829
		2830	utf8::encode $msg;
		2831
		2832	if (0 && $msg =~ /\[/) {
		2833	# COMMAND/INFO
		2834	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2835	} else {
		2836	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2837	$self->send_packet ("drawinfo $color $msg")
		2838	}
		2839	}
		2840	}
		2841	}
		2842
		2843	=item $client->ext_msg ($type, @msg)
		2844
		2845	Sends an ext event to the client.
		2846
		2847	=cut
		2848
		2849	sub cf::client::ext_msg($$@) {
		2850	my ($self, $type, @msg) = @_;
		2851
		2852	if ($self->extcmd == 2) {
		2853	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2854	} elsif ($self->extcmd == 1) { # TODO: remove
		2855	push @msg, msgtype => "event_$type";
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
		2858	}
		2859
		2860	=item $client->ext_reply ($msgid, @msg)
		2861
		2862	Sends an ext reply to the client.
		2863
		2864	=cut
		2865
		2866	sub cf::client::ext_reply($$@) {
		2867	my ($self, $id, @msg) = @_;
		2868
		2869	if ($self->extcmd == 2) {
		2870	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2871	} elsif ($self->extcmd == 1) {
		2872	#TODO: version 1, remove
		2873	unshift @msg, msgtype => "reply", msgid => $id;
		2874	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2875	}
		2876	}
1876		2877
1877	=item $success = $client->query ($flags, "text", \&cb)	2878	=item $success = $client->query ($flags, "text", \&cb)
1878		2879
1879	Queues a query to the client, calling the given callback with	2880	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2881	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2882	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2883
1883	Queries can fail, so check the return code. Or don't, as queries will become	2884	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2885	become reliable at some point in the future.
1885		2886
1886	=cut	2887	=cut
1887		2888
1888	sub cf::client::query {	2889	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2890	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2898	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2899	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2900
1900	$self->send_packet ($self->{query_queue}[0][0])	2901	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2902	if @{ $self->{query_queue} } == 1;
		2903
		2904	1
1902	}	2905	}
1903		2906
1904	cf::client->attach (	2907	cf::client->attach (
		2908	on_connect => sub {
		2909	my ($ns) = @_;
		2910
		2911	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2912	},
1905	on_reply => sub {	2913	on_reply => sub {
1906	my ($ns, $msg) = @_;	2914	my ($ns, $msg) = @_;
1907		2915
1908	# this weird shuffling is so that direct followup queries	2916	# this weird shuffling is so that direct followup queries
1909	# get handled first	2917	# get handled first
1910	my $queue = delete $ns->{query_queue}	2918	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2919	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2920
1913	(shift @$queue)->[1]->($msg);	2921	(shift @$queue)->[1]->($msg);
		2922	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2923
1915	push @{ $ns->{query_queue} }, @$queue;	2924	push @{ $ns->{query_queue} }, @$queue;
1916		2925
1917	if (@{ $ns->{query_queue} } == @$queue) {	2926	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2927	if (@$queue) {
…		…
1920	} else {	2929	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2930	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2931	}
1923	}	2932	}
1924	},	2933	},
		2934	on_exticmd => sub {
		2935	my ($ns, $buf) = @_;
		2936
		2937	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2938
		2939	if (ref $msg) {
		2940	my ($type, $reply, @payload) =
		2941	"ARRAY" eq ref $msg
		2942	? @$msg
		2943	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2944
		2945	my @reply;
		2946
		2947	if (my $cb = $EXTICMD{$type}) {
		2948	@reply = $cb->($ns, @payload);
		2949	}
		2950
		2951	$ns->ext_reply ($reply, @reply)
		2952	if $reply;
		2953
		2954	} else {
		2955	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2956	}
		2957
		2958	cf::override;
		2959	},
1925	);	2960	);
1926		2961
1927	=item $client->async (\&cb)	2962	=item $client->async (\&cb)
1928		2963
1929	Create a new coroutine, running the specified callback. The coroutine will	2964	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	3005	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	3006	our $safe_hole = new Safe::Hole;
1972		3007
1973	$SIG{FPE} = 'IGNORE';	3008	$SIG{FPE} = 'IGNORE';
1974		3009
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3010	$safe->permit_only (Opcode::opset qw(
		3011	:base_core :base_mem :base_orig :base_math
		3012	grepstart grepwhile mapstart mapwhile
		3013	sort time
		3014	));
1976		3015
1977	# here we export the classes and methods available to script code	3016	# here we export the classes and methods available to script code
1978		3017
1979	=pod	3018	=pod
1980		3019
1981	The following fucntions and emthods are available within a safe environment:	3020	The following functions and methods are available within a safe environment:
1982		3021
1983	cf::object contr pay_amount pay_player map	3022	cf::object
		3023	contr pay_amount pay_player map x y force_find force_add destroy
		3024	insert remove name archname title slaying race decrease_ob_nr
		3025
1984	cf::object::player player	3026	cf::object::player
1985	cf::player peaceful	3027	player
1986	cf::map trigger	3028
		3029	cf::player
		3030	peaceful
		3031
		3032	cf::map
		3033	trigger
1987		3034
1988	=cut	3035	=cut
1989		3036
1990	for (	3037	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	3038	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3039	insert remove inv name archname title slaying race
		3040	decrease_ob_nr destroy)],
1992	["cf::object::player" => qw(player)],	3041	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	3042	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	3043	["cf::map" => qw(trigger)],
1995	) {	3044	) {
1996	no strict 'refs';	3045	no strict 'refs';
…		…
2067	=back	3116	=back
2068		3117
2069	=cut	3118	=cut
2070		3119
2071	#############################################################################	3120	#############################################################################
		3121	# the server's init and main functions
2072		3122
2073	=head2 EXTENSION DATABASE SUPPORT	3123	sub load_facedata($) {
		3124	my ($path) = @_;
2074		3125
2075	Crossfire maintains a very simple database for extension use. It can	3126	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	3127	# for this (global event?)
2077	excludes objects.	3128	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		3129
2079	The parameter C<$family> should best start with the name of the extension	3130	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		3131
2082	=over 4	3132	warn "loading facedata from $path\n";
2083		3133
2084	=item $hashref = cf::db_get $family	3134	my $facedata;
		3135	0 < aio_load $path, $facedata
		3136	or die "$path: $!";
2085		3137
2086	Return a hashref for use by the extension C<$family>, which can be	3138	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		3139
2090	=item $value = cf::db_get $family => $key	3140	$facedata->{version} == 2
		3141	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		3142
2092	Returns a single value from the database	3143	# patch in the exptable
2093		3144	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3145	type => FT_RSRC,
2095		3146	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3147	};
		3148	cf::cede_to_tick;
2145		3149
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3150	{
		3151	my $faces = $facedata->{faceinfo};
2150		3152
2151	sub db_get($;$) {	3153	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3154	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156		3155
2157	sub db_put($$;$) {	3156	cf::face::set_visibility $idx, $info->{visibility};
2158	if (@_ >= 3) {	3157	cf::face::set_magicmap $idx, $info->{magicmap};
2159	$DB->{$_[0]}{$_[1]} = $_[2];	3158	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2160	} else {	3159	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165		3160
2166	cf::global->attach (	3161	cf::cede_to_tick;
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3162	}
2171	);
2172	}
2173		3163
2174	#############################################################################	3164	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3165	next unless $info->{smooth};
2176		3166
2177	sub cfg_load {	3167	my $idx = cf::face::find $face
		3168	or next;
		3169
		3170	if (my $smooth = cf::face::find $info->{smooth}) {
		3171	cf::face::set_smooth $idx, $smooth;
		3172	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3173	} else {
		3174	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3175	}
		3176
		3177	cf::cede_to_tick;
		3178	}
		3179	}
		3180
		3181	{
		3182	my $anims = $facedata->{animinfo};
		3183
		3184	while (my ($anim, $info) = each %$anims) {
		3185	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3186	cf::cede_to_tick;
		3187	}
		3188
		3189	cf::anim::invalidate_all; # d'oh
		3190	}
		3191
		3192	{
		3193	# TODO: for gcfclient pleasure, we should give resources
		3194	# that gcfclient doesn't grok a >10000 face index.
		3195	my $res = $facedata->{resource};
		3196
		3197	while (my ($name, $info) = each %$res) {
		3198	if (defined $info->{type}) {
		3199	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3200	my $data;
		3201
		3202	if ($info->{type} & 1) {
		3203	# prepend meta info
		3204
		3205	my $meta = $enc->encode ({
		3206	name => $name,
		3207	%{ $info->{meta} || {} },
		3208	});
		3209
		3210	$data = pack "(w/a*)*", $meta, $info->{data};
		3211	} else {
		3212	$data = $info->{data};
		3213	}
		3214
		3215	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3216	cf::face::set_type $idx, $info->{type};
		3217	} else {
		3218	$RESOURCE{$name} = $info;
		3219	}
		3220
		3221	cf::cede_to_tick;
		3222	}
		3223
		3224	if (my $soundconf = delete $res->{"res/sound.conf"}) {
		3225	$soundconf = $enc->decode (delete $soundconf->{data});
		3226
		3227	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3228	my $sound = $soundconf->{compat}[$_]
		3229	or next;
		3230
		3231	my $face = cf::face::find "sound/$sound->[1]";
		3232	cf::sound::set $sound->[0] => $face;
		3233	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3234	}
		3235
		3236	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3237	my $face = cf::face::find "sound/$v";
		3238	cf::sound::set $k => $face;
		3239	}
		3240	}
		3241	}
		3242
		3243	1
		3244	}
		3245
		3246	register_exticmd fx_want => sub {
		3247	my ($ns, $want) = @_;
		3248
		3249	while (my ($k, $v) = each %$want) {
		3250	$ns->fx_want ($k, $v);
		3251	}
		3252	};
		3253
		3254	sub reload_regions {
		3255	# HACK to clear player env face cache, we need some signal framework
		3256	# for this (global event?)
		3257	%ext::player_env::MUSIC_FACE_CACHE = ();
		3258
		3259	load_resource_file "$MAPDIR/regions"
		3260	or die "unable to load regions file\n";
		3261
		3262	for (cf::region::list) {
		3263	$_->{match} = qr/$_->{match}/
		3264	if exists $_->{match};
		3265	}
		3266	}
		3267
		3268	sub reload_facedata {
		3269	load_facedata "$DATADIR/facedata"
		3270	or die "unable to load facedata\n";
		3271	}
		3272
		3273	sub reload_archetypes {
		3274	load_resource_file "$DATADIR/archetypes"
		3275	or die "unable to load archetypes\n";
		3276	#d# NEED to laod twice to resolve forward references
		3277	# this really needs to be done in an extra post-pass
		3278	# (which needs to be synchronous, so solve it differently)
		3279	load_resource_file "$DATADIR/archetypes"
		3280	or die "unable to load archetypes\n";
		3281	}
		3282
		3283	sub reload_treasures {
		3284	load_resource_file "$DATADIR/treasures"
		3285	or die "unable to load treasurelists\n";
		3286	}
		3287
		3288	sub reload_resources {
		3289	warn "reloading resource files...\n";
		3290
		3291	reload_regions;
		3292	reload_facedata;
		3293	#reload_archetypes;#d#
		3294	reload_archetypes;
		3295	reload_treasures;
		3296
		3297	warn "finished reloading resource files\n";
		3298	}
		3299
		3300	sub init {
		3301	reload_resources;
		3302	}
		3303
		3304	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3305	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3306	or return;
2180		3307
2181	local $/;	3308	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3309	*CFG = YAML::Syck::Load <$fh>;
2183		3310
…		…
2197		3324
2198	sub main {	3325	sub main {
2199	# we must not ever block the main coroutine	3326	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3327	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3328	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2202	async { Event::one_event };	3329	(async {
		3330	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3331	EV::loop EV::LOOP_ONESHOT;
		3332	})->prio (Coro::PRIO_MAX);
2203	};	3333	};
2204		3334
2205	cfg_load;	3335	reload_config;
2206	db_load;	3336	db_init;
2207	load_extensions;	3337	load_extensions;
		3338
		3339	$TICK_WATCHER->start;
		3340	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2208	Event::loop;	3341	EV::loop;
2209	}	3342	}
2210		3343
2211	#############################################################################	3344	#############################################################################
2212	# initialisation	3345	# initialisation and cleanup
2213		3346
		3347	# install some emergency cleanup handlers
		3348	BEGIN {
		3349	our %SIGWATCHER = ();
		3350	for my $signal (qw(INT HUP TERM)) {
		3351	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3352	cf::cleanup "SIG$signal";
		3353	};
		3354	}
		3355	}
		3356
		3357	sub write_runtime {
		3358	my $runtime = "$LOCALDIR/runtime";
		3359
		3360	# first touch the runtime file to show we are still running:
		3361	# the fsync below can take a very very long time.
		3362
		3363	IO::AIO::aio_utime $runtime, undef, undef;
		3364
		3365	my $guard = cf::lock_acquire "write_runtime";
		3366
		3367	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3368	or return;
		3369
		3370	my $value = $cf::RUNTIME + 90 + 10;
		3371	# 10 is the runtime save interval, for a monotonic clock
		3372	# 60 allows for the watchdog to kill the server.
		3373
		3374	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3375	and return;
		3376
		3377	# always fsync - this file is important
		3378	aio_fsync $fh
		3379	and return;
		3380
		3381	# touch it again to show we are up-to-date
		3382	aio_utime $fh, undef, undef;
		3383
		3384	close $fh
		3385	or return;
		3386
		3387	aio_rename "$runtime~", $runtime
		3388	and return;
		3389
		3390	warn "runtime file written.\n";
		3391
		3392	1
		3393	}
		3394
		3395	sub emergency_save() {
		3396	my $freeze_guard = cf::freeze_mainloop;
		3397
		3398	warn "enter emergency perl save\n";
		3399
		3400	cf::sync_job {
		3401	# use a peculiar iteration method to avoid tripping on perl
		3402	# refcount bugs in for. also avoids problems with players
		3403	# and maps saved/destroyed asynchronously.
		3404	warn "begin emergency player save\n";
		3405	for my $login (keys %cf::PLAYER) {
		3406	my $pl = $cf::PLAYER{$login} or next;
		3407	$pl->valid or next;
		3408	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3409	$pl->save;
		3410	}
		3411	warn "end emergency player save\n";
		3412
		3413	warn "begin emergency map save\n";
		3414	for my $path (keys %cf::MAP) {
		3415	my $map = $cf::MAP{$path} or next;
		3416	$map->valid or next;
		3417	$map->save;
		3418	}
		3419	warn "end emergency map save\n";
		3420
		3421	warn "begin emergency database checkpoint\n";
		3422	BDB::db_env_txn_checkpoint $DB_ENV;
		3423	warn "end emergency database checkpoint\n";
		3424	};
		3425
		3426	warn "leave emergency perl save\n";
		3427	}
		3428
		3429	sub post_cleanup {
		3430	my ($make_core) = @_;
		3431
		3432	warn Carp::longmess "post_cleanup backtrace"
		3433	if $make_core;
		3434	}
		3435
2214	sub reload() {	3436	sub do_reload_perl() {
2215	# can/must only be called in main	3437	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3438	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3439	warn "can only reload from main coroutine";
2218	return;	3440	return;
2219	}	3441	}
2220		3442
2221	warn "reloading...";	3443	warn "reloading...";
2222		3444
2223	my $guard = freeze_mainloop;	3445	warn "entering sync_job";
		3446
		3447	cf::sync_job {
		3448	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3449	cf::emergency_save;
		3450	cf::write_runtime; # external watchdog should not bark
2225		3451
2226	eval {	3452	warn "syncing database to disk";
		3453	BDB::db_env_txn_checkpoint $DB_ENV;
		3454
2227	# if anything goes wrong in here, we should simply crash as we already saved	3455	# if anything goes wrong in here, we should simply crash as we already saved
2228		3456
2229	# cancel all watchers	3457	warn "flushing outstanding aio requests";
2230	for (Event::all_watchers) {	3458	for (;;) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3459	BDB::flush;
		3460	IO::AIO::flush;
		3461	Coro::cede_notself;
		3462	last unless IO::AIO::nreqs || BDB::nreqs;
		3463	warn "iterate...";
2232	}	3464	}
2233		3465
		3466	++$RELOAD;
		3467
2234	# cancel all extension coros	3468	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3469	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3470	%EXT_CORO = ();
2237		3471
2238	# unload all extensions	3472	warn "removing commands";
2239	for (@exts) {	3473	%COMMAND = ();
		3474
		3475	warn "removing ext/exti commands";
		3476	%EXTCMD = ();
		3477	%EXTICMD = ();
		3478
		3479	warn "unloading/nuking all extensions";
		3480	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3481	warn "... unloading $pkg";
2241	unload_extension $_;	3482
		3483	if (my $cb = $pkg->can ("unload")) {
		3484	eval {
		3485	$cb->($pkg);
		3486	1
		3487	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3488	}
2243		3489
		3490	warn "... nuking $pkg";
		3491	Symbol::delete_package $pkg;
		3492	}
		3493
2244	# unload all modules loaded from $LIBDIR	3494	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3495	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3496	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3497
2248	warn "removing <$k>";	3498	warn "... unloading $k";
2249	delete $INC{$k};	3499	delete $INC{$k};
2250		3500
2251	$k =~ s/\.pm$//;	3501	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3502	$k =~ s/\//::/g;
2253		3503
…		…
2256	}	3506	}
2257		3507
2258	Symbol::delete_package $k;	3508	Symbol::delete_package $k;
2259	}	3509	}
2260		3510
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3511	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3512	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3513	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3514
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3515	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3516	delete $INC{"cf.pm"};
		3517	delete $INC{"cf/pod.pm"};
2274		3518
2275	# don't, removes xs symbols, too,	3519	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3520	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3521	#Symbol::delete_package __PACKAGE__;
2278		3522
2279	# reload cf.pm	3523	warn "unload completed, starting to reload now";
		3524
2280	warn "reloading cf.pm";	3525	warn "reloading cf.pm";
2281	require cf;	3526	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3527	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3528
2284	# load config and database again	3529	warn "loading config and database again";
2285	cf::cfg_load;	3530	cf::reload_config;
2286	cf::db_load;
2287		3531
2288	# load extensions
2289	warn "load extensions";	3532	warn "loading extensions";
2290	cf::load_extensions;	3533	cf::load_extensions;
2291		3534
2292	# reattach attachments to objects	3535	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3536	_global_reattach; # objects, sockets
2294	_global_reattach;	3537	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3538	reattach $_ for values %MAP;
2296	};	3539	warn "reattaching attachments to players";
		3540	reattach $_ for values %PLAYER;
2297		3541
2298	if ($@) {	3542	warn "leaving sync_job";
		3543
		3544	1
		3545	} or do {
2299	warn $@;	3546	warn $@;
2300	warn "error while reloading, exiting.";	3547	warn "error while reloading, exiting.";
2301	exit 1;	3548	exit 1;
2302	}	3549	};
2303		3550
2304	warn "reloaded successfully";	3551	warn "reloaded";
2305	};	3552	};
2306		3553
2307	#############################################################################	3554	our $RELOAD_WATCHER; # used only during reload
2308		3555
2309	unless ($LINK_MAP) {	3556	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3557	# doing reload synchronously and two reloads happen back-to-back,
		3558	# coro crashes during coro_state_free->destroy here.
2311		3559
2312	$LINK_MAP->width (41);	3560	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2313	$LINK_MAP->height (41);	3561	undef $RELOAD_WATCHER;
2314	$LINK_MAP->alloc;	3562	do_reload_perl;
2315	$LINK_MAP->path ("{link}");	3563	};
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,
2322	cb => sub {
2323	$_[0]->w->cancel;
2324
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});
2343
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3564	}
2349
2350	register "<global>", __PACKAGE__;
2351		3565
2352	register_command "reload" => sub {	3566	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3567	my ($who, $arg) = @_;
2354		3568
2355	if ($who->flag (FLAG_WIZ)) {	3569	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3570	$who->message ("reloading server.");
		3571	async {
		3572	$Coro::current->{desc} = "perl_reload";
		3573	reload_perl;
		3574	};
2359	}	3575	}
2360	};	3576	};
2361		3577
2362	unshift @INC, $LIBDIR;	3578	unshift @INC, $LIBDIR;
2363		3579
2364	$TICK_WATCHER = Event->timer (	3580	my $bug_warning = 0;
2365	reentrant => 0,	3581
2366	prio => 0,	3582	our @WAIT_FOR_TICK;
2367	at => $NEXT_TICK || $TICK,	3583	our @WAIT_FOR_TICK_BEGIN;
2368	data => WF_AUTOCANCEL,	3584
2369	cb => sub {	3585	sub wait_for_tick {
		3586	return unless $TICK_WATCHER->is_active;
		3587	return if $Coro::current == $Coro::main;
		3588
		3589	my $signal = new Coro::Signal;
		3590	push @WAIT_FOR_TICK, $signal;
		3591	$signal->wait;
		3592	}
		3593
		3594	sub wait_for_tick_begin {
		3595	return unless $TICK_WATCHER->is_active;
		3596	return if $Coro::current == $Coro::main;
		3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK_BEGIN, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3604	if ($Coro::current != $Coro::main) {
		3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3606	unless ++$bug_warning > 10;
		3607	return;
		3608	}
		3609
		3610	$NOW = $tick_start = EV::now;
		3611
2370	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2371	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3615	$NEXT_TICK = $_[0]->at;
2373		3616
2374	# if we are delayed by four ticks or more, skip them all	3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3618	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2376		3619	Coro::async_pool {
2377	$TICK_WATCHER->at ($NEXT_TICK);	3620	$Coro::current->{desc} = "runtime saver";
2378	$TICK_WATCHER->start;
2379	},
2380	);
2381
2382	IO::AIO::max_poll_time $TICK * 0.2;
2383
2384	Event->io (
2385	fd => IO::AIO::poll_fileno,
2386	poll => 'r',
2387	prio => 5,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,
2394	after => 0,
2395	interval => 10,
2396	cb => sub {
2397	(Coro::unblock_sub {
2398	write_runtime	3621	write_runtime
2399	or warn "ERROR: unable to write runtime file: $!";	3622	or warn "ERROR: unable to write runtime file: $!";
2400	})->();	3623	};
2401	},	3624	}
2402	);	3625
		3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$LOAD = ($NOW - $tick_start) / $TICK;
		3634	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3635
		3636	_post_tick;
		3637	};
		3638	$TICK_WATCHER->priority (EV::MAXPRI);
		3639
		3640	{
		3641	# configure BDB
		3642
		3643	BDB::min_parallel 8;
		3644	BDB::max_poll_reqs $TICK * 0.1;
		3645	$Coro::BDB::WATCHER->priority (1);
		3646
		3647	unless ($DB_ENV) {
		3648	$DB_ENV = BDB::db_env_create;
		3649	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3650	| BDB::LOG_AUTOREMOVE, 1);
		3651	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3652	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3653
		3654	cf::sync_job {
		3655	eval {
		3656	BDB::db_env_open
		3657	$DB_ENV,
		3658	$BDBDIR,
		3659	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3660	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3661	0666;
		3662
		3663	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3664	};
		3665
		3666	cf::cleanup "db_env_open(db): $@" if $@;
		3667	};
		3668	}
		3669
		3670	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3671	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3672	};
		3673	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3674	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3675	};
		3676	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3677	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3678	};
		3679	}
		3680
		3681	{
		3682	# configure IO::AIO
		3683
		3684	IO::AIO::min_parallel 8;
		3685	IO::AIO::max_poll_time $TICK * 0.1;
		3686	$Coro::AIO::WATCHER->priority (1);
		3687	}
		3688
		3689	my $_log_backtrace;
		3690
		3691	sub _log_backtrace {
		3692	my ($msg, @addr) = @_;
		3693
		3694	$msg =~ s/\n//;
		3695
		3696	# limit the # of concurrent backtraces
		3697	if ($_log_backtrace < 2) {
		3698	++$_log_backtrace;
		3699	async {
		3700	$Coro::current->{desc} = "abt $msg";
		3701
		3702	my @bt = fork_call {
		3703	@addr = map { sprintf "%x", $_ } @addr;
		3704	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3705	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3706	or die "addr2line: $!";
		3707
		3708	my @funcs;
		3709	my @res = <$fh>;
		3710	chomp for @res;
		3711	while (@res) {
		3712	my ($func, $line) = splice @res, 0, 2, ();
		3713	push @funcs, "[$func] $line";
		3714	}
		3715
		3716	@funcs
		3717	};
		3718
		3719	LOG llevInfo, "[ABT] $msg\n";
		3720	LOG llevInfo, "[ABT] $_\n" for @bt;
		3721	--$_log_backtrace;
		3722	};
		3723	} else {
		3724	LOG llevInfo, "[ABT] $msg\n";
		3725	LOG llevInfo, "[ABT] [suppressed]\n";
		3726	}
		3727	}
		3728
		3729	# load additional modules
		3730	use cf::pod;
2403		3731
2404	END { cf::emergency_save }	3732	END { cf::emergency_save }
2405		3733
2406	1	3734	1
2407		3735

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