ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 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
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	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;
51		88
52	our %CFG;	89	our %CFG;
53		90
54	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	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
98	every server tick.	136	every server tick.
99		137
100	=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
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
112		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
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	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.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		206
148	# 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
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
156	)) {	215	)) {
157	no strict 'refs';	216	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	217	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$EV::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$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;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::decode_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::encode_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub encode_json($) { $json_coder->encode ($_[0]) }
214	}	266	sub decode_json($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	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
223	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,
224	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	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
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($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#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$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	$sig->wait;
264	}	412	}
265		413
266	=item cf::async { BLOCK }	414	=item cf::async { BLOCK }
267		415
268	Currently the same as Coro::async_pool, meaning you cannot use	416	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		421
274	BEGIN { *async = \&Coro::async_pool }	422	BEGIN { *async = \&Coro::async_pool }
275		423
276	=item cf::sync_job { BLOCK }	424	=item cf::sync_job { BLOCK }
277		425
278	The design of crossfire+ requires that the main coro ($Coro::main) is	426	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	427	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	428	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		429	acceptable.
281		430
282	If it must be done, put the blocking parts into C<sync_job>. This will run	431	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	432	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	433	server will be frozen during this time, so the block should either finish
285	fast or be very important.	434	fast or be very important.
…		…
288		437
289	sub sync_job(&) {	438	sub sync_job(&) {
290	my ($job) = @_;	439	my ($job) = @_;
291		440
292	if ($Coro::current == $Coro::main) {	441	if ($Coro::current == $Coro::main) {
		442	my $time = EV::time;
		443
293	# this is the main coro, too bad, we have to block	444	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	445	# till the operation succeeds, freezing the server :/
295		446
		447	LOG llevError, Carp::longmess "sync job";#d#
		448
296	# TODO: use suspend/resume instead	449	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	450	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	451	my $freeze_guard = freeze_mainloop;
299		452
300	my $busy = 1;	453	my $busy = 1;
301	my @res;	454	my @res;
302		455
303	(async {	456	(async {
		457	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	458	@res = eval { $job->() };
305	warn $@ if $@;	459	warn $@ if $@;
306	undef $busy;	460	undef $busy;
307	})->prio (Coro::PRIO_MAX);	461	})->prio (Coro::PRIO_MAX);
308		462
309	while ($busy) {	463	while ($busy) {
310	Coro::cede or Event::one_event;	464	if (Coro::nready) {
		465	Coro::cede_notself;
		466	} else {
		467	EV::loop EV::LOOP_ONESHOT;
311	}	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
312		477
313	wantarray ? @res : $res[0]	478	wantarray ? @res : $res[0]
314	} else {	479	} else {
315	# we are in another coroutine, how wonderful, everything just works	480	# we are in another coroutine, how wonderful, everything just works
316		481
…		…
336	$EXT_CORO{$coro+0} = $coro;	501	$EXT_CORO{$coro+0} = $coro;
337		502
338	$coro	503	$coro
339	}	504	}
340		505
341	sub write_runtime {	506	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		507
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	508	Executes the given code block with the given arguments in a seperate
345	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.
346		512
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	513	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		514
351	aio_fsync $fh	515	sub fork_call(&@) {
352	and return;	516	my ($cb, @args) = @_;
353		517
354	close $fh	518	# we seemingly have to make a local copy of the whole thing,
355	or return;	519	# otherwise perl prematurely frees the stuff :/
		520	# TODO: investigate and fix (likely this will be rather laborious)
356		521
357	aio_rename "$runtime~", $runtime	522	my @res = Coro::Util::fork_eval {
358	and return;	523	reset_signals;
		524	&$cb
		525	}, @args;
359		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($$) {
		572	my $key = "$_[0]/$_[1]";
		573
		574	cf::sync_job {
		575	BDB::db_get $DB, undef, $key, my $data;
		576
		577	$! ? ()
		578	: $data
360	1	579	}
		580	}
		581
		582	sub db_put($$$) {
		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 });
361	}	666	}
362		667
363	=back	668	=back
364		669
365	=cut	670	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		671
543	#############################################################################	672	#############################################################################
544		673
545	=head2 ATTACHABLE OBJECTS	674	=head2 ATTACHABLE OBJECTS
546		675
…		…
548	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")
549	to it. All such attachable objects support the following methods.	678	to it. All such attachable objects support the following methods.
550		679
551	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>
552	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
553	crossfire+).	682	Deliantra).
554		683
555	=over 4	684	=over 4
556		685
557	=item $attachable->attach ($attachment, key => $value...)	686	=item $attachable->attach ($attachment, key => $value...)
558		687
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	801	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	802	our @CB_MAP = ();
674		803
675	my %attachment;	804	my %attachment;
676		805
		806	sub cf::attachable::thawer_merge {
		807	# simply override everything except _meta
		808	local $_[0]{_meta};
		809	%{$_[0]} = %{$_[1]};
		810	}
		811
677	sub _attach_cb($$$$) {	812	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	813	my ($registry, $event, $prio, $cb) = @_;
679		814
680	use sort 'stable';	815	use sort 'stable';
681		816
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	850	$registry = $CB_TYPE[$object_type] ||= [];
716		851
717	} elsif ($type eq "subtype") {	852	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	853	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	854	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	855	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		856
722	} elsif ($type eq "package") {	857	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	858	my $pkg = shift @arg;
724		859
725	while (my ($name, $id) = each %cb_id) {	860	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	889	_attach $registry, $klass, @attach;
755	}	890	}
756		891
757	$obj->{$name} = \%arg;	892	$obj->{$name} = \%arg;
758	} else {	893	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	894	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	895	}
761		896
762	$obj->{_attachment}{$name} = undef;	897	$obj->{_attachment}{$name} = undef;
763	}	898	}
764		899
…		…
766	if (ref $_[0]) {	901	if (ref $_[0]) {
767	_object_attach @_;	902	_object_attach @_;
768	} else {	903	} else {
769	_attach shift->_attach_registry, @_;	904	_attach shift->_attach_registry, @_;
770	}	905	}
		906	_recalc_want;
771	};	907	};
772		908
773	# all those should be optimised	909	# all those should be optimised
774	sub cf::attachable::detach {	910	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	911	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	914	delete $obj->{_attachment}{$name};
779	reattach ($obj);	915	reattach ($obj);
780	} else {	916	} else {
781	Carp::croak "cannot, currently, detach class attachments";	917	Carp::croak "cannot, currently, detach class attachments";
782	}	918	}
		919	_recalc_want;
783	};	920	};
784		921
785	sub cf::attachable::attached {	922	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
787		924
…		…
802	";	939	";
803	die if $@;	940	die if $@;
804	}	941	}
805		942
806	our $override;	943	our $override;
807	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?
808		945
809	sub override {	946	sub override {
810	$override = 1;	947	$override = 1;
811	@invoke_results = ();	948	@INVOKE_RESULTS = (@_);
812	}	949	}
813		950
814	sub do_invoke {	951	sub do_invoke {
815	my $event = shift;	952	my $event = shift;
816	my $callbacks = shift;	953	my $callbacks = shift;
817		954
818	@invoke_results = ();	955	@INVOKE_RESULTS = ();
819		956
820	local $override;	957	local $override;
821		958
822	for (@$callbacks) {	959	for (@$callbacks) {
823	eval { &{$_->[1]} };	960	eval { &{$_->[1]} };
…		…
840		977
841	Generate an object-specific event with the given arguments.	978	Generate an object-specific event with the given arguments.
842		979
843	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
844	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
845	results (if you must, access C<@cf::invoke_results> directly).	982	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		983
847	=back	984	=back
848		985
849	=cut	986	=cut
850		987
851	#############################################################################	988	#############################################################################
852	# object support	989	# object support
		990
		991	sub _object_equal($$);
		992	sub _object_equal($$) {
		993	my ($a, $b) = @_;
		994
		995	return 0 unless (ref $a) eq (ref $b);
		996
		997	if ("HASH" eq ref $a) {
		998	my @ka = keys %$a;
		999	my @kb = keys %$b;
		1000
		1001	return 0 if @ka != @kb;
		1002
		1003	for (0 .. $#ka) {
		1004	return 0 unless $ka[$_] eq $kb[$_];
		1005	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1006	}
		1007
		1008	} elsif ("ARRAY" eq ref $a) {
		1009
		1010	return 0 if @$a != @$b;
		1011
		1012	for (0 .. $#$a) {
		1013	return 0 unless _object_equal $a->[$_], $b->[$_];
		1014	}
		1015
		1016	} elsif ($a ne $b) {
		1017	return 0;
		1018	}
		1019
		1020	1
		1021	}
		1022
		1023	our $SLOW_MERGES;#d#
		1024	sub _can_merge {
		1025	my ($ob1, $ob2) = @_;
		1026
		1027	++$SLOW_MERGES;#d#
		1028
		1029	# we do the slow way here
		1030	return _object_equal $ob1, $ob2
		1031	}
853		1032
854	sub reattach {	1033	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1034	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1035	my ($obj) = @_;
		1036
		1037	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1038
858	my $registry = $obj->registry;	1039	my $registry = $obj->registry;
859		1040
860	@$registry = ();	1041	@$registry = ();
861		1042
…		…
876	cf::attachable->attach (	1057	cf::attachable->attach (
877	prio => -1000000,	1058	prio => -1000000,
878	on_instantiate => sub {	1059	on_instantiate => sub {
879	my ($obj, $data) = @_;	1060	my ($obj, $data) = @_;
880		1061
881	$data = from_json $data;	1062	$data = decode_json $data;
882		1063
883	for (@$data) {	1064	for (@$data) {
884	my ($name, $args) = @$_;	1065	my ($name, $args) = @$_;
885		1066
886	$obj->attach ($name, %{$args || {} });	1067	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1083	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1084	my ($filename, $rdata, $objs) = @_;
904		1085
905	sync_job {	1086	sync_job {
906	if (length $$rdata) {	1087	if (length $$rdata) {
		1088	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1089	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1090	$decname, length $$rdata, scalar @$objs;
909		1091
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1092	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1093	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1094	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1095	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1096	close $fh;
915		1097
916	if (@$objs) {	1098	if (@$objs) {
917	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) {
918	chmod SAVE_MODE, $fh;	1100	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1101	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1102	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1103	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1104	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1105	aio_rename "$filename.pst~", "$filename.pst";
924	}	1106	}
925	} else {	1107	} else {
926	aio_unlink "$filename.pst";	1108	aio_unlink "$filename.pst";
…		…
932	}	1114	}
933	} else {	1115	} else {
934	aio_unlink $filename;	1116	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1117	aio_unlink "$filename.pst";
936	}	1118	}
937	}	1119	};
938	}	1120	}
939		1121
940	sub object_freezer_as_string {	1122	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1123	my ($rdata, $objs) = @_;
942		1124
…		…
954	or return;	1136	or return;
955		1137
956	unless (aio_stat "$filename.pst") {	1138	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1139	(aio_load "$filename.pst", $av) >= 0
958	or return;	1140	or return;
		1141
959	$av = eval { (Storable::thaw $av)->{objs} };	1142	my $st = eval { Coro::Storable::thaw $av };
		1143	$av = $st->{objs};
960	}	1144	}
961		1145
		1146	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1147	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1148	$decname, length $data, scalar @{$av || []};
		1149
964	return ($data, $av);	1150	($data, $av)
965	}	1151	}
		1152
		1153	=head2 COMMAND CALLBACKS
		1154
		1155	=over 4
		1156
		1157	=cut
966		1158
967	#############################################################################	1159	#############################################################################
968	# command handling &c	1160	# command handling &c
969		1161
970	=item cf::register_command $name => \&callback($ob,$args);	1162	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1175	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1176	}
985		1177
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1178	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1179
988	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.
989		1185
990	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
991	called.	1187	called.
992		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
993	=cut	1200	=cut
994		1201
995	sub register_extcmd {	1202	sub register_extcmd {
996	my ($name, $cb) = @_;	1203	my ($name, $cb) = @_;
997		1204
998	$EXTCMD{$name} = $cb;	1205	$EXTCMD{$name} = $cb;
		1206	}
		1207
		1208	sub register_exticmd {
		1209	my ($name, $cb) = @_;
		1210
		1211	$EXTICMD{$name} = $cb;
999	}	1212	}
1000		1213
1001	cf::player->attach (	1214	cf::player->attach (
1002	on_command => sub {	1215	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1216	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1225	cf::override;
1013	},	1226	},
1014	on_extcmd => sub {	1227	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1228	my ($pl, $buf) = @_;
1016		1229
1017	my $msg = eval { from_json $buf };	1230	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1231
1019	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
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1240	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1241	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1242	}
		1243
		1244	$pl->ext_reply ($reply, @reply)
		1245	if $reply;
		1246
1025	} else {	1247	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1248	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1249	}
1028		1250
1029	cf::override;	1251	cf::override;
1030	},	1252	},
1031	);	1253	);
1032		1254
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1255	sub load_extensions {
		1256	cf::sync_job {
		1257	my %todo;
		1258
1061	for my $ext (<$LIBDIR/*.ext>) {	1259	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1260	next unless -r $path;
1063	eval {	1261
1064	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;
1065	1	1319	}
1066	} or warn "$ext not loaded: $@";	1320
		1321	skip:
		1322	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1323	unless $progress;
		1324	}
1067	}	1325	};
1068	}	1326	}
1069		1327
1070	#############################################################################	1328	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1329
1073	*cf::mapsupport::on_clean = sub {	1330	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1331
1086	=head2 CORE EXTENSIONS	1332	=head2 CORE EXTENSIONS
1087		1333
1088	Functions and methods that extend core crossfire objects.	1334	Functions and methods that extend core crossfire objects.
1089		1335
…		…
1095		1341
1096	=head3 cf::player	1342	=head3 cf::player
1097		1343
1098	=over 4	1344	=over 4
1099		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
1100	=item cf::player::find $login	1360	=item cf::player::find $login
1101		1361
1102	Returns the given player object, loading it if necessary (might block).	1362	Returns the given player object, loading it if necessary (might block).
1103		1363
1104	=cut	1364	=cut
1105		1365
1106	sub playerdir($) {	1366	sub playerdir($) {
1107	cf::localdir	1367	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1368	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1369	}
1113		1370
1114	sub path($) {	1371	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1372	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1373
1117	(playerdir $login) . "/$login.pl"	1374	(playerdir $login) . "/playerdata"
1118	}	1375	}
1119		1376
1120	sub find_active($) {	1377	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1378	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1379	and $cf::PLAYER{$_[0]}->active
…		…
1125		1382
1126	sub exists($) {	1383	sub exists($) {
1127	my ($login) = @_;	1384	my ($login) = @_;
1128		1385
1129	$cf::PLAYER{$login}	1386	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1387	or cf::sync_job { !aio_stat path $login }
1131	}	1388	}
1132		1389
1133	sub find($) {	1390	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1391	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1392	my $login = $_[0];
1136		1393
1137	my $guard = cf::lock_acquire "user_find:$login";	1394	my $guard = cf::lock_acquire "user_find:$login";
1138		1395
1139	$cf::PLAYER{$_[0]} || do {	1396	$cf::PLAYER{$_[0]} || do {
1140	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
1141	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;
1142	$cf::PLAYER{$login} = $pl	1411	$cf::PLAYER{$login} = $pl
1143	}	1412	}
1144	}	1413	}
1145	}	1414	}
1146		1415
…		…
1156		1425
1157	aio_mkdir playerdir $pl, 0770;	1426	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1427	$pl->{last_save} = $cf::RUNTIME;
1159		1428
1160	$pl->save_pl ($path);	1429	$pl->save_pl ($path);
1161	Coro::cede;	1430	cf::cede_to_tick;
1162	}	1431	}
1163		1432
1164	sub new($) {	1433	sub new($) {
1165	my ($login) = @_;	1434	my ($login) = @_;
1166		1435
…		…
1172	$cf::PLAYER{$login} = $self;	1441	$cf::PLAYER{$login} = $self;
1173		1442
1174	$self	1443	$self
1175	}	1444	}
1176		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
1177	=item $pl->quit_character	1456	=item $pl->quit_character
1178		1457
1179	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
1180	be destroyed. May block for a long time.	1459	be destroyed. May block for a long time.
1181		1460
1182	=cut	1461	=cut
1183		1462
1184	sub quit_character {	1463	sub quit_character {
1185	my ($pl) = @_;	1464	my ($pl) = @_;
		1465
		1466	my $name = $pl->ob->name;
1186		1467
1187	$pl->{deny_save} = 1;	1468	$pl->{deny_save} = 1;
1188	$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
1189		1470
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1471	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1476	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1477	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1478	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1479	delete $cf::PLAYER{$pl->ob->name};
1199	$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
1200	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;
1201	}	1502	}
1202		1503
1203	=item cf::player::list_logins	1504	=item cf::player::list_logins
1204		1505
1205	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
1206	while and may block, so not sync_job-capable, ever.	1507	while and may block, so not sync_job-capable, ever.
1207		1508
1208	=cut	1509	=cut
1209		1510
1210	sub list_logins {	1511	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1512	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1513	or return [];
1213		1514
1214	my @logins;	1515	my @logins;
1215		1516
1216	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") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1522	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1523	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1524	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1525	}
1220		1526
1221	utf8::decode $login;	1527	utf8::decode $login;
1222	push @logins, $login;	1528	push @logins, $login;
1223	}	1529	}
1224		1530
1225	\@logins	1531	\@logins
1226	}	1532	}
1227		1533
1228	=item $player->maps	1534	=item $player->maps
1229		1535
1230	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
1231	player. May block.	1537	player. May block.
1232		1538
1233	=cut	1539	=cut
1234		1540
1235	sub maps($) {	1541	sub maps($) {
1236	my ($pl) = @_;	1542	my ($pl) = @_;
		1543
		1544	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1545
1238	my $files = aio_readdir playerdir $pl	1546	my $files = aio_readdir playerdir $pl
1239	or return;	1547	or return;
1240		1548
1241	my @paths;	1549	my @paths;
…		…
1243	for (@$files) {	1551	for (@$files) {
1244	utf8::decode $_;	1552	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1553	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1554	next unless /^$PATH_SEP/o;
1247		1555
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1556	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1557	}
1250		1558
1251	\@paths	1559	\@paths
1252	}	1560	}
1253		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
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1655	=item $player->ext_reply ($msgid, @msg)
1255		1656
1256	Sends an ext reply to the player.	1657	Sends an ext reply to the player.
1257		1658
1258	=cut	1659	=cut
1259		1660
1260	sub ext_reply($$$%) {	1661	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1662	my ($self, $id, @msg) = @_;
1262		1663
1263	$msg{msgid} = $id;	1664	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1665	}
1267		1666
1268	package cf;	1667	=item $player->ext_msg ($type, @msg)
		1668
		1669	Sends an ext event to the client.
		1670
		1671	=cut
		1672
		1673	sub ext_msg($$@) {
		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	}
1269		1707
1270	=back	1708	=back
1271
1272		1709
1273	=head3 cf::map	1710	=head3 cf::map
1274		1711
1275	=over 4	1712	=over 4
1276		1713
…		…
1279	package cf::map;	1716	package cf::map;
1280		1717
1281	use Fcntl;	1718	use Fcntl;
1282	use Coro::AIO;	1719	use Coro::AIO;
1283		1720
		1721	use overload
		1722	'""' => \&as_string,
		1723	fallback => 1;
		1724
1284	our $MAX_RESET = 3600;	1725	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1726	our $DEFAULT_RESET = 3000;
1286		1727
1287	sub generate_random_map {	1728	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1729	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1730	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1731	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1732	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1733	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1734	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1735	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1736	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1741	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1742	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1743	)
1305	}	1744	}
1306		1745
		1746	=item cf::map->register ($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"
		1871	}
		1872
1307	# and all this just because we cannot iterate over	1873	# and all this just because we cannot iterate over
1308	# all maps in C++...	1874	# all maps in C++...
1309	sub change_all_map_light {	1875	sub change_all_map_light {
1310	my ($change) = @_;	1876	my ($change) = @_;
1311		1877
1312	$_->change_map_light ($change)	1878	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1879	for grep $_->outdoor, values %cf::MAP;
1314	}	1880	}
1315		1881
		1882	sub decay_objects {
		1883	my ($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
1316	sub load_map_header($) {	1898	sub load_header_from($) {
1317	my ($path) = @_;	1899	my ($self, $path) = @_;
1318		1900
1319	utf8::encode $path;	1901	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1902	my $f = new_from_file cf::object::thawer $path
1321	or return;	1903	or return;
1322		1904
1323	my $map = cf::map::new	1905	$self->_load_header ($f)
1324	or return;	1906	or return;
1325		1907
1326	# for better error messages only, will be overwritten later	1908	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1909	$f->resolve_delayed_derefs;
1328		1910
1329	$map->load_header ($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
1330	or return;	1954	or return;
		1955	$self->prepare_orig;
		1956	}
1331		1957
1332	$map->{load_path} = $path;	1958	$self->{deny_reset} = 1
		1959	if $self->no_reset;
1333		1960
1334	$map	1961	$self->default_region (cf::region::find_by_path $self->{path})
		1962	unless $self->default_region;
		1963
		1964	1
1335	}	1965	}
1336		1966
1337	sub find;	1967	sub find;
1338	sub find {	1968	sub find {
1339	my ($path, $origin) = @_;	1969	my ($path, $origin) = @_;
1340		1970
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1971	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1972
		1973	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1974	cf::lock_wait "map_find:$path";
1347		1975
1348	$cf::MAP{$key} || do {	1976	$cf::MAP{$path} || do {
1349	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
1350		1979
1351	# do it the slow way	1980	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1981	or return;
1365		1982
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1983	$map->{last_save} = $cf::RUNTIME;
1378		1984
1379	Coro::cede;	1985	$map->load_header
		1986	or return;
1380		1987
1381	if ($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;
1382	$map->reset;	1993	$map->reset;
1383	undef $guard;
1384	$map = find $path	1994	return find $path;
1385	or return;
1386	}	1995	}
1387		1996
1388	$cf::MAP{$key} = $map	1997	$cf::MAP{$path} = $map
1389	}	1998	}
1390	}	1999	}
		2000
		2001	sub pre_load { }
		2002	sub post_load { }
1391		2003
1392	sub load {	2004	sub load {
1393	my ($self) = @_;	2005	my ($self) = @_;
1394		2006
		2007	local $self->{deny_reset} = 1; # loading can take a long time
		2008
1395	my $path = $self->{path};	2009	my $path = $self->{path};
		2010
		2011	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2012	my $guard = cf::lock_acquire "map_data:$path";
1397		2013
		2014	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2015	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		2016
1400	$self->in_memory (cf::MAP_LOADING);	2017	$self->in_memory (cf::MAP_LOADING);
1401		2018
1402	$self->alloc;	2019	$self->alloc;
1403	$self->load_objects ($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)
1404	or return;	2027	or return;
1405		2028
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2029	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	2030	if delete $self->{load_original};
1408		2031
1409	if (my $uniq = $path->uniq_path) {	2032	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2033	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2034	unless (aio_stat $uniq) {
		2035	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2036	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2037	$self->_load_objects ($f);
		2038	$f->resolve_delayed_derefs;
		2039	}
1414	}	2040	}
1415	}	2041	}
1416		2042
1417	Coro::cede;	2043	$f->resolve_delayed_derefs;
1418		2044
		2045	cf::cede_to_tick;
1419	# now do the right thing for maps	2046	# now do the right thing for maps
1420	$self->link_multipart_objects;	2047	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2048	$self->difficulty ($self->estimate_difficulty)
1431	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;
1432	$self->activate;	2059	$self->activate;
1433	}	2060	}
1434		2061
1435	Coro::cede;	2062	$self->{last_save} = $cf::RUNTIME;
		2063	$self->last_access ($cf::RUNTIME);
1436		2064
1437	$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	$self
1438	}	2081	}
1439		2082
1440	# find and load all maps in the 3x3 area around a map	2083	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2084	sub load_neighbours {
1442	my ($map) = @_;	2085	my ($map) = @_;
1443		2086
1444	my @diag; # diagonal neighbours	2087	my @neigh; # diagonal neighbours
1445		2088
1446	for (0 .. 3) {	2089	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2090	my $neigh = $map->tile_path ($_)
1448	or next;	2091	or next;
1449	$neigh = find $neigh, $map	2092	$neigh = find $neigh, $map
1450	or next;	2093	or next;
1451	$neigh->load;	2094	$neigh->load;
1452		2095
		2096	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2097	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2098	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2099	}
1456		2100
1457	for (@diag) {	2101	for (grep defined $_->[0], @neigh) {
		2102	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2103	my $neigh = find $path, $origin
1459	or next;	2104	or next;
1460	$neigh->load;	2105	$neigh->load;
1461	}	2106	}
1462	}	2107	}
1463		2108
…		…
1468	}	2113	}
1469		2114
1470	sub do_load_sync {	2115	sub do_load_sync {
1471	my ($map) = @_;	2116	my ($map) = @_;
1472		2117
		2118	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2119	if $Coro::current == $Coro::main;
		2120
1473	cf::sync_job { $map->load };	2121	cf::sync_job { $map->load };
1474	}	2122	}
1475		2123
1476	our %MAP_PREFETCH;	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
1477	our $MAP_PREFETCHER = Coro::async {	2138	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2139	$Coro::current->{desc} = "map prefetcher";
		2140
1479	while (%MAP_PREFETCH) {	2141	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2142	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2143	if (my $map = find $k) {
		2144	$map->load if $v;
		2145	}
		2146
1482	my $path = delete $MAP_PREFETCH{$key};	2147	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2148	}
1488	Coro::schedule;	2149	}
		2150	undef $MAP_PREFETCHER;
1489	}	2151	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2152	$MAP_PREFETCHER->prio (6);
1504		2153
1505	()	2154	()
1506	}	2155	}
1507		2156
1508	sub save {	2157	sub save {
1509	my ($self) = @_;	2158	my ($self) = @_;
1510		2159
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2160	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2161
1513	$self->{last_save} = $cf::RUNTIME;	2162	$self->{last_save} = $cf::RUNTIME;
1514		2163
1515	return unless $self->dirty;	2164	return unless $self->dirty;
1516		2165
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2166	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2167	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2168
1520	$self->{load_path} = $save;	2169	$self->{load_path} = $save;
1521		2170
1522	return if $self->{deny_save};	2171	return if $self->{deny_save};
1523		2172
1524	local $self->{last_access} = $self->last_access;#d#	2173	local $self->{last_access} = $self->last_access;#d#
1525		2174
1526	cf::async {	2175	cf::async {
		2176	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2177	$_->contr->save for $self->players;
1528	};	2178	};
1529		2179
1530	if ($uniq) {	2180	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2181	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2182	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2183	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2184	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2185	}
1536	}	2186	}
1537		2187
1538	sub swap_out {	2188	sub swap_out {
1539	my ($self) = @_;	2189	my ($self) = @_;
1540		2190
1541	# save first because save cedes	2191	# save first because save cedes
1542	$self->save;	2192	$self->save;
1543		2193
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2194	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2195
1546	return if $self->players;	2196	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2197	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2198	return if $self->{deny_save};
1549		2199
		2200	$self->in_memory (cf::MAP_SWAPPED);
		2201
		2202	$self->deactivate;
		2203	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2204	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2205	}
1553		2206
1554	sub reset_at {	2207	sub reset_at {
1555	my ($self) = @_;	2208	my ($self) = @_;
1556		2209
1557	# TODO: safety, remove and allow resettable per-player maps	2210	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2211	return 1e99 if $self->{deny_reset};
1560		2212
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2213	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2214	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2215
…		…
1568	my ($self) = @_;	2220	my ($self) = @_;
1569		2221
1570	$self->reset_at <= $cf::RUNTIME	2222	$self->reset_at <= $cf::RUNTIME
1571	}	2223	}
1572		2224
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2225	sub reset {
1587	my ($self) = @_;	2226	my ($self) = @_;
1588		2227
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2228	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2229
1591	return if $self->players;	2230	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2231
1594	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	}
1595		2243
1596	delete $cf::MAP{$self->path};	2244	delete $cf::MAP{$self->path};
1597		2245
		2246	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2247	$_->clear_links_to ($self) for values %cf::MAP;
		2248	$self->clear;
1599		2249
1600	$self->{path}->unlink_save;	2250	$self->unlink_save;
1601	$self->destroy;	2251	$self->destroy;
1602	}	2252	}
1603		2253
1604	my $nuke_counter = "aaaa";	2254	my $nuke_counter = "aaaa";
1605		2255
1606	sub nuke {	2256	sub nuke {
1607	my ($self) = @_;	2257	my ($self) = @_;
1608		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};
1609	$self->{deny_save} = 1;	2268	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2269	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2270	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2271
		2272	$cf::MAP{$self->path} = $self;
		2273	}
		2274
1612	$self->reset; # polite request, might not happen	2275	$self->reset; # polite request, might not happen
1613	}	2276	}
1614		2277
		2278	=item $maps = cf::map::tmp_maps
		2279
		2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	maps. May block.
		2282
		2283	=cut
		2284
		2285	sub tmp_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise $_
		2291	: ()
		2292	} @{ aio_readdir $TMPDIR or [] }
		2293	]
		2294	}
		2295
		2296	=item $maps = cf::map::random_maps
		2297
		2298	Returns an arrayref with all map paths of currently instantiated and saved
		2299	random maps. May block.
		2300
		2301	=cut
		2302
		2303	sub random_maps() {
		2304	[
		2305	map {
		2306	utf8::decode $_;
		2307	/\.map$/
		2308	? normalise "?random/$_"
		2309	: ()
		2310	} @{ aio_readdir $RANDOMDIR or [] }
		2311	]
		2312	}
		2313
1615	=item cf::map::unique_maps	2314	=item cf::map::unique_maps
1616		2315
1617	Returns an arrayref of cf::path's of all shared maps that have	2316	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2317	instantiated unique items. May block.
1619		2318
1620	=cut	2319	=cut
1621		2320
1622	sub unique_maps() {	2321	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2322	[
1624	or return;	2323	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2324	utf8::decode $_;
1630	next if /\.pst$/;	2325	/\.map$/
1631	next unless /^$PATH_SEP/o;	2326	? normalise $_
1632		2327	: ()
1633	push @paths, new cf::path $_;	2328	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2329	]
1635
1636	\@paths
1637	}	2330	}
1638		2331
1639	package cf;	2332	package cf;
1640		2333
1641	=back	2334	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2352	map { $_, inv_recursive_ $_->inv } @_
1660	}	2353	}
1661		2354
1662	sub inv_recursive {	2355	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	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	}
1664	}	2385	}
1665		2386
1666	package cf;	2387	package cf;
1667		2388
1668	=back	2389	=back
…		…
1687		2408
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2409	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2410
1690	if ($self->{record_replies}) {	2411	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2412	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2413
1692	} 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 {
1693	$msg = $npc->name . " says: $msg" if $npc;	2422	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2423	$self->message ($msg, $flags);
		2424	}
1695	}	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 (@_);
1696	}	2436	}
1697		2437
1698	=item $player_object->may ("access")	2438	=item $player_object->may ("access")
1699		2439
1700	Returns wether the given player is authorized to access resource "access"	2440	Returns wether the given player is authorized to access resource "access"
…		…
1713		2453
1714	=item $player_object->enter_link	2454	=item $player_object->enter_link
1715		2455
1716	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}>).
1717		2457
1718	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
1719	I<MUST> call C<leave_link> as soon as possible, though.	2459	I<MUST> call C<leave_link> as soon as possible, though.
1720		2460
		2461	Will never block.
		2462
1721	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1722		2464
1723	Moves the player out of the specila link map onto the given map. If the	2465	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2466	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2467	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2468	fails, to the emergency map position.
1727		2469
1728	Might block.	2470	Might block.
1729		2471
1730	=cut	2472	=cut
		2473
		2474	sub link_map {
		2475	unless ($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	$LINK_MAP
		2482	}
1731		2483
1732	sub cf::object::player::enter_link {	2484	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2485	my ($self) = @_;
1734		2486
1735	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1736		2488
1737	return if $self->map == $LINK_MAP;	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2490
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1741		2493
1742	$self->enter_map ($LINK_MAP, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2495	}
1744		2496
1745	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1747		2501
1748	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1749		2503
1750	unless ($map) {	2504	unless ($map) {
1751	# restore original map position	2505	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1768		2522
1769	$map->load;	2523	$map->load;
1770	$map->load_diag;	2524	$map->load_neighbours;
1771		2525
1772	return unless $self->contr->active;	2526	return unless $self->contr->active;
1773	$self->activate_recursive;	2527	$self->activate_recursive;
		2528
		2529	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2530	$self->enter_map ($map, $x, $y);
1775	}	2531	}
1776		2532
1777	cf::player->attach (	2533	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2534
1781	# abort map switching before logout	2535	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2536	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2537	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2538	the new (success) or old (failed) map position. In either case, $done will
1785	};	2539	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2540
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2541	=cut
		2542
		2543	our $GOTOGEN;
1812		2544
1813	sub cf::object::player::goto {	2545	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2546	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2547
1816	$path = new cf::path $path;	2548	# do generation counting so two concurrent goto's will be executed in-order
		2549	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2550
1818	$self->enter_link;	2551	$self->enter_link;
1819		2552
1820	(async {	2553	(async {
1821	my $map = cf::map::find $path->as_string;	2554	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2555
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2556	# *tag paths override both path and x|y
		2557	if ($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
1825	# if $map;	2578	if ($map) {
1826		2579	$map = $map->customise_for ($self);
		2580	$map = $check->($map) if $check && $map;
		2581	} else {
1827	$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	}
1828		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};
1829	$self->leave_link ($map, $x, $y);	2595	$self->leave_link ($map, $x, $y);
		2596	}
		2597
		2598	$done->() if $done;
1830	})->prio (1);	2599	})->prio (1);
1831	}	2600	}
1832		2601
1833	=item $player_object->enter_exit ($exit_object)	2602	=item $player_object->enter_exit ($exit_object)
1834		2603
…		…
1836		2605
1837	sub parse_random_map_params {	2606	sub parse_random_map_params {
1838	my ($spec) = @_;	2607	my ($spec) = @_;
1839		2608
1840	my $rmp = { # defaults	2609	my $rmp = { # defaults
1841	xsize => 10,	2610	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2611	ysize => (cf::rndm 15, 40),
		2612	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2613	#layout => string,
1843	};	2614	};
1844		2615
1845	for (split /\n/, $spec) {	2616	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2617	my ($k, $v) = split /\s+/, $_, 2;
1847		2618
…		…
1851	$rmp	2622	$rmp
1852	}	2623	}
1853		2624
1854	sub prepare_random_map {	2625	sub prepare_random_map {
1855	my ($exit) = @_;	2626	my ($exit) = @_;
		2627
		2628	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2629
1857	# all this does is basically replace the /! path by	2630	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2631	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2632	# that depends on the exit object
1860		2633
1861	my $rmp = parse_random_map_params $exit->msg;	2634	my $rmp = parse_random_map_params $exit->msg;
1862		2635
1863	if ($exit->map) {	2636	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2637	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2638	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2639	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2640	$rmp->{origin_y} = $exit->y;
1868	}	2641	}
1869		2642
1870	$rmp->{random_seed} ||= $exit->random_seed;	2643	$rmp->{random_seed} ||= $exit->random_seed;
1871		2644
1872	my $data = cf::to_json $rmp;	2645	my $data = cf::encode_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2646	my $md5 = Digest::MD5::md5_hex $data;
		2647	my $meta = "$RANDOMDIR/$md5.meta";
1874		2648
1875	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) {
1876	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;
1877		2653
1878	$exit->slaying ("?random/$md5");	2654	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2655	$exit->msg (undef);
1880	}	2656	}
1881	}	2657	}
…		…
1883	sub cf::object::player::enter_exit {	2659	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2660	my ($self, $exit) = @_;
1885		2661
1886	return unless $self->type == cf::PLAYER;	2662	return unless $self->type == cf::PLAYER;
1887		2663
		2664	if ($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
1888	$self->enter_link;	2675	$self->enter_link;
1889		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
1890	(async {	2681	(async {
		2682	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2683
1891	$self->deactivate_recursive; # just to be sure	2684	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2685	unless (eval {
1893	prepare_random_map $exit	2686	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2687
1899	1;	2688	1;
1900	}) {	2689	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2690	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "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. "
1903	. "Please report this to the dungeon master!",	2692	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2693	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2694
1906	warn "ERROR in enter_exit: $@";	2695	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2696	$self->leave_link;
1908	}	2697	}
1909	})->prio (1);	2698	})->prio (1);
…		…
1922		2711
1923	sub cf::client::send_drawinfo {	2712	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2713	my ($self, $text, $flags) = @_;
1925		2714
1926	utf8::encode $text;	2715	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2716	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2717	}
1929		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	}
1930		2877
1931	=item $success = $client->query ($flags, "text", \&cb)	2878	=item $success = $client->query ($flags, "text", \&cb)
1932		2879
1933	Queues a query to the client, calling the given callback with	2880	Queues a query to the client, calling the given callback with
1934	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>,
1935	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>.
1936		2883
1937	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
1938	reliable at some point in the future.	2885	become reliable at some point in the future.
1939		2886
1940	=cut	2887	=cut
1941		2888
1942	sub cf::client::query {	2889	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2890	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2898	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2899	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2900
1954	$self->send_packet ($self->{query_queue}[0][0])	2901	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2902	if @{ $self->{query_queue} } == 1;
		2903
		2904	1
1956	}	2905	}
1957		2906
1958	cf::client->attach (	2907	cf::client->attach (
		2908	on_connect => sub {
		2909	my ($ns) = @_;
		2910
		2911	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2912	},
1959	on_reply => sub {	2913	on_reply => sub {
1960	my ($ns, $msg) = @_;	2914	my ($ns, $msg) = @_;
1961		2915
1962	# this weird shuffling is so that direct followup queries	2916	# this weird shuffling is so that direct followup queries
1963	# get handled first	2917	# get handled first
1964	my $queue = delete $ns->{query_queue}	2918	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2919	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2920
1967	(shift @$queue)->[1]->($msg);	2921	(shift @$queue)->[1]->($msg);
		2922	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2923
1969	push @{ $ns->{query_queue} }, @$queue;	2924	push @{ $ns->{query_queue} }, @$queue;
1970		2925
1971	if (@{ $ns->{query_queue} } == @$queue) {	2926	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2927	if (@$queue) {
…		…
1974	} else {	2929	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2930	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2931	}
1977	}	2932	}
1978	},	2933	},
		2934	on_exticmd => sub {
		2935	my ($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	},
1979	);	2960	);
1980		2961
1981	=item $client->async (\&cb)	2962	=item $client->async (\&cb)
1982		2963
1983	Create a new coroutine, running the specified callback. The coroutine will	2964	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	3005	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3006	our $safe_hole = new Safe::Hole;
2026		3007
2027	$SIG{FPE} = 'IGNORE';	3008	$SIG{FPE} = 'IGNORE';
2028		3009
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3010	$safe->permit_only (Opcode::opset qw(
		3011	:base_core :base_mem :base_orig :base_math
		3012	grepstart grepwhile mapstart mapwhile
		3013	sort time
		3014	));
2030		3015
2031	# here we export the classes and methods available to script code	3016	# here we export the classes and methods available to script code
2032		3017
2033	=pod	3018	=pod
2034		3019
2035	The following fucntions and emthods are available within a safe environment:	3020	The following functions and methods are available within a safe environment:
2036		3021
2037	cf::object contr pay_amount pay_player map	3022	cf::object
		3023	contr pay_amount pay_player map x y force_find force_add destroy
		3024	insert remove name archname title slaying race decrease_ob_nr
		3025
2038	cf::object::player player	3026	cf::object::player
2039	cf::player peaceful	3027	player
2040	cf::map trigger	3028
		3029	cf::player
		3030	peaceful
		3031
		3032	cf::map
		3033	trigger
2041		3034
2042	=cut	3035	=cut
2043		3036
2044	for (	3037	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3038	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3039	insert remove inv name archname title slaying race
		3040	decrease_ob_nr destroy)],
2046	["cf::object::player" => qw(player)],	3041	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3042	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	3043	["cf::map" => qw(trigger)],
2049	) {	3044	) {
2050	no strict 'refs';	3045	no strict 'refs';
…		…
2121	=back	3116	=back
2122		3117
2123	=cut	3118	=cut
2124		3119
2125	#############################################################################	3120	#############################################################################
		3121	# the server's init and main functions
2126		3122
2127	=head2 EXTENSION DATABASE SUPPORT	3123	sub load_facedata($) {
		3124	my ($path) = @_;
2128		3125
2129	Crossfire maintains a very simple database for extension use. It can	3126	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3127	# for this (global event?)
2131	excludes objects.	3128	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3129
2133	The parameter C<$family> should best start with the name of the extension	3130	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3131
2136	=over 4	3132	warn "loading facedata from $path\n";
2137		3133
2138	=item $hashref = cf::db_get $family	3134	my $facedata;
		3135	0 < aio_load $path, $facedata
		3136	or die "$path: $!";
2139		3137
2140	Return a hashref for use by the extension C<$family>, which can be	3138	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3139
2144	=item $value = cf::db_get $family => $key	3140	$facedata->{version} == 2
		3141	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3142
2146	Returns a single value from the database	3143	# patch in the exptable
2147		3144	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3145	type => FT_RSRC,
2149		3146	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3147	};
		3148	cf::cede_to_tick;
2199		3149
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3150	{
		3151	my $faces = $facedata->{faceinfo};
2204		3152
2205	sub db_get($;$) {	3153	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3154	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		3155
2211	sub db_put($$;$) {	3156	cf::face::set_visibility $idx, $info->{visibility};
2212	if (@_ >= 3) {	3157	cf::face::set_magicmap $idx, $info->{magicmap};
2213	$DB->{$_[0]}{$_[1]} = $_[2];	3158	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2214	} else {	3159	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219		3160
2220	cf::global->attach (	3161	cf::cede_to_tick;
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3162	}
2225	);
2226	}
2227		3163
2228	#############################################################################	3164	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3165	next unless $info->{smooth};
2230		3166
2231	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 {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3305	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3306	or return;
2234		3307
2235	local $/;	3308	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3309	*CFG = YAML::Syck::Load <$fh>;
2237		3310
…		…
2251		3324
2252	sub main {	3325	sub main {
2253	# we must not ever block the main coroutine	3326	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3327	local $Coro::idle = sub {
2255	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#
2256	async { Event::one_event };	3329	(async {
		3330	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3331	EV::loop EV::LOOP_ONESHOT;
		3332	})->prio (Coro::PRIO_MAX);
2257	};	3333	};
2258		3334
2259	cfg_load;	3335	reload_config;
2260	db_load;	3336	db_init;
2261	load_extensions;	3337	load_extensions;
		3338
		3339	$TICK_WATCHER->start;
		3340	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2262	Event::loop;	3341	EV::loop;
2263	}	3342	}
2264		3343
2265	#############################################################################	3344	#############################################################################
2266	# initialisation and cleanup	3345	# initialisation and cleanup
2267		3346
2268	# install some emergency cleanup handlers	3347	# install some emergency cleanup handlers
2269	BEGIN {	3348	BEGIN {
		3349	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3350	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3351	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3352	cf::cleanup "SIG$signal";
2276	},
2277	);	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
2278	}	3392	1
2279	}	3393	}
2280		3394
2281	sub emergency_save() {	3395	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3396	my $freeze_guard = cf::freeze_mainloop;
2283		3397
2284	warn "enter emergency perl save\n";	3398	warn "enter emergency perl save\n";
2285		3399
2286	cf::sync_job {	3400	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3401	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3402	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3403	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3404	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3405	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3406	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3407	$pl->valid or next;
		3408	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3409	$pl->save;
2295	}	3410	}
2296	warn "end emergency player save\n";	3411	warn "end emergency player save\n";
2297		3412
2298	warn "begin emergency map save\n";	3413	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3415	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3416	$map->valid or next;
2302	$map->save;	3417	$map->save;
2303	}	3418	}
2304	warn "end emergency map save\n";	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";
2305	};	3424	};
2306		3425
2307	warn "leave emergency perl save\n";	3426	warn "leave emergency perl save\n";
2308	}	3427	}
2309		3428
		3429	sub post_cleanup {
		3430	my ($make_core) = @_;
		3431
		3432	warn Carp::longmess "post_cleanup backtrace"
		3433	if $make_core;
		3434	}
		3435
2310	sub reload() {	3436	sub do_reload_perl() {
2311	# can/must only be called in main	3437	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3438	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3439	warn "can only reload from main coroutine";
2314	return;	3440	return;
2315	}	3441	}
2316		3442
2317	warn "reloading...";	3443	warn "reloading...";
2318		3444
2319	warn "freezing server";	3445	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3446
		3447	cf::sync_job {
		3448	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3449	cf::emergency_save;
		3450	cf::write_runtime; # external watchdog should not bark
2322		3451
2323	warn "sync database to disk";	3452	warn "syncing database to disk";
2324	cf::db_sync;	3453	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3454
2327	eval {
2328	# 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
2329		3456
2330	warn "cancel all watchers";	3457	warn "flushing outstanding aio requests";
2331	for (Event::all_watchers) {	3458	for (;;) {
2332	$_->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...";
2333	}	3464	}
2334		3465
		3466	++$RELOAD;
		3467
2335	warn "cancel all extension coros";	3468	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3469	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3470	%EXT_CORO = ();
2338		3471
2339	warn "remove commands";	3472	warn "removing commands";
2340	%COMMAND = ();	3473	%COMMAND = ();
2341		3474
2342	warn "remove ext commands";	3475	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3476	%EXTCMD = ();
		3477	%EXTICMD = ();
2344		3478
2345	warn "unload/nuke all extensions";	3479	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3480	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3481	warn "... unloading $pkg";
2348		3482
2349	if (my $cb = $pkg->can ("unload")) {	3483	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3484	eval {
…		…
2355		3489
2356	warn "... nuking $pkg";	3490	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3491	Symbol::delete_package $pkg;
2358	}	3492	}
2359		3493
2360	warn "unload all perl modules loaded from $LIBDIR";	3494	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3495	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3496	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3497
2364	warn "removing <$k>";	3498	warn "... unloading $k";
2365	delete $INC{$k};	3499	delete $INC{$k};
2366		3500
2367	$k =~ s/\.pm$//;	3501	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3502	$k =~ s/\//::/g;
2369		3503
…		…
2372	}	3506	}
2373		3507
2374	Symbol::delete_package $k;	3508	Symbol::delete_package $k;
2375	}	3509	}
2376		3510
2377	warn "get rid of safe::, as good as possible";	3511	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3512	Symbol::delete_package "safe::$_"
2379	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);
2380		3514
2381	warn "unload cf.pm \"a bit\"";	3515	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3516	delete $INC{"cf.pm"};
		3517	delete $INC{"cf/pod.pm"};
2383		3518
2384	# don't, removes xs symbols, too,	3519	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3520	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3521	#Symbol::delete_package __PACKAGE__;
2387		3522
		3523	warn "unload completed, starting to reload now";
		3524
2388	warn "reloading cf.pm";	3525	warn "reloading cf.pm";
2389	require cf;	3526	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3527	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3528
2392	warn "load config and database again";	3529	warn "loading config and database again";
2393	cf::cfg_load;	3530	cf::reload_config;
2394	cf::db_load;
2395		3531
2396	warn "load extensions";	3532	warn "loading extensions";
2397	cf::load_extensions;	3533	cf::load_extensions;
2398		3534
2399	warn "reattach attachments to objects/players";	3535	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3536	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3537	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3538	reattach $_ for values %MAP;
2403	};	3539	warn "reattaching attachments to players";
		3540	reattach $_ for values %PLAYER;
2404		3541
2405	if ($@) {	3542	warn "leaving sync_job";
		3543
		3544	1
		3545	} or do {
2406	warn $@;	3546	warn $@;
2407	warn "error while reloading, exiting.";	3547	warn "error while reloading, exiting.";
2408	exit 1;	3548	exit 1;
2409	}	3549	};
2410		3550
2411	warn "reloaded";	3551	warn "reloaded";
2412	};	3552	};
2413		3553
2414	#############################################################################	3554	our $RELOAD_WATCHER; # used only during reload
2415		3555
2416	unless ($LINK_MAP) {	3556	sub reload_perl() {
2417	$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.
2418		3559
2419	$LINK_MAP->width (41);	3560	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2420	$LINK_MAP->height (41);	3561	undef $RELOAD_WATCHER;
2421	$LINK_MAP->alloc;	3562	do_reload_perl;
2422	$LINK_MAP->path ("{link}");	3563	};
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3564	}
2456		3565
2457	register_command "reload" => sub {	3566	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3567	my ($who, $arg) = @_;
2459		3568
2460	if ($who->flag (FLAG_WIZ)) {	3569	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3570	$who->message ("reloading server.");
		3571	async {
		3572	$Coro::current->{desc} = "perl_reload";
		3573	reload_perl;
		3574	};
2464	}	3575	}
2465	};	3576	};
2466		3577
2467	unshift @INC, $LIBDIR;	3578	unshift @INC, $LIBDIR;
2468		3579
2469	$TICK_WATCHER = Event->timer (	3580	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		3581
		3582	our @WAIT_FOR_TICK;
		3583	our @WAIT_FOR_TICK_BEGIN;
		3584
		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
2477	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2478	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3615	$NEXT_TICK = $_[0]->at;
2480		3616
2481	$WAIT_FOR_TICK->broadcast;	3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3618	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2483		3619	Coro::async_pool {
2484	# if we are delayed by four ticks or more, skip them all	3620	$Coro::current->{desc} = "runtime saver";
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2486
2487	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;
2489	},
2490	);
2491
2492	IO::AIO::max_poll_time $TICK * 0.2;
2493
2494	Event->io (
2495	fd => IO::AIO::poll_fileno,
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,
2504	after => 0,
2505	interval => 10,
2506	cb => sub {
2507	(Coro::unblock_sub {
2508	write_runtime	3621	write_runtime
2509	or warn "ERROR: unable to write runtime file: $!";	3622	or warn "ERROR: unable to write runtime file: $!";
2510	})->();	3623	};
2511	},	3624	}
2512	);	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;
2513		3731
2514	END { cf::emergency_save }	3732	END { cf::emergency_save }
2515		3733
2516	1	3734	1
2517		3735

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines