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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.160 by root, Wed Jan 10 22:54:06 2007 UTC vs.
Revision 1.388 by root, Thu Oct 18 02:56:13 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 Event;
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 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
42		60
		61	our $RELOAD; # number of reloads so far
43	our @EVENT;	62	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		63
46	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
47	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	80	our $NEXT_TICK;
49	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
50		89
51	our %CFG;	90	our %CFG;
52		91
53	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	93	our $RUNTIME;
55		94
56	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
57	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
58	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		98
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
62	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 $tick_start; # for load detecting purposes
63		105
64	binmode STDOUT;	106	binmode STDOUT;
65	binmode STDERR;	107	binmode STDERR;
66		108
67	# read virtual server time, if available	109	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
69	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
70	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
71	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
72	}	114	}
73		115
74	mkdir cf::localdir;	116	mkdir $_
75	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		118
80	# a special map that is always available
81	our $LINK_MAP;
82	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
83		122
84	#############################################################################	123	#############################################################################
85		124
86	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
87		126
…		…
94	=item $cf::RUNTIME	133	=item $cf::RUNTIME
95		134
96	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
97	every server tick.	136	every server tick.
98		137
99	=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
100		141
101	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		146
104	=item $cf::NOW	147	=item $cf::NOW
105		148
106	The time of the last (current) server tick.	149	The time of the last (current) server tick.
107		150
108	=item $cf::TICK	151	=item $cf::TICK
109		152
110	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		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.
111		164
112	=item %cf::CFG	165	=item %cf::CFG
113		166
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
115	from wherever your confdir points to.	168	from wherever your confdir points to.
116		169
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		171
119	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
120	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
121	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.
122	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.
123		181
124	=back	182	=back
125		183
126	=cut	184	=cut
127		185
128	BEGIN {	186	BEGIN {
129	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	188	my $msg = join "", @_;
131	utf8::encode $msg;
132		189
133	$msg .= "\n"	190	$msg .= "\n"
134	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
135		194
136	LOG llevError, $msg;	195	LOG llevError, $msg;
137	};	196	};
138	}	197	}
139		198
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		206
147	# 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
148	# within the Safe compartment.	208	# within the Safe compartment.
149	for my $pkg (qw(	209	for my $pkg (qw(
150	cf::global cf::attachable	210	cf::global cf::attachable
…		…
158	}	218	}
159		219
160	$Event::DIED = sub {	220	$Event::DIED = sub {
161	warn "error in event callback: @_";	221	warn "error in event callback: @_";
162	};	222	};
		223
		224	#############################################################################
163		225
164	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
165		227
166	=over 4	228	=over 4
167		229
…		…
186	$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;
187	$d	249	$d
188	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
189	}	251	}
190		252
191	use JSON::Syck (); # TODO# replace by JSON::PC once working
192
193	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
194		254
195	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
196		256
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
205		258
206	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
207		260
208	=cut	261	=cut
209		262
210	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
212	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
213	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
214		267
215	=item cf::lock_wait $string	268	=item cf::lock_wait $string
216		269
217	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
218		271
…		…
221	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
222	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,
223	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
224	returned.	277	returned.
225		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
226	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
227	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
228		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
229	=cut	289	=cut
230		290
231	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
232		293
233	sub lock_wait($) {	294	sub lock_wait($) {
234	my ($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#
235		301
236	# wait for lock, if any	302	# wait for lock, if any
237	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;	305	Coro::schedule;
…		…
245		311
246	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
247	lock_wait $key;	313	lock_wait $key;
248		314
249	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
250		317
251	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
252	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
254	}	322	}
255	}	323	}
256		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
257	sub freeze_mainloop {	331	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
259		333
260	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
261	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
262	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
263	}	397	}
264		398
265	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
266		400
267	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		406
273	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
274		408
275	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
276		410
277	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
278	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
280		415
281	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
282	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
283	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
284	fast or be very important.	419	fast or be very important.
…		…
287		422
288	sub sync_job(&) {	423	sub sync_job(&) {
289	my ($job) = @_;	424	my ($job) = @_;
290		425
291	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
292	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
294		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
295	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
296	# (but this is cancel-safe)	435	# (but this is cancel-safe)
297	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
298		437
299	my $busy = 1;	438	my $busy = 1;
300	my @res;	439	my @res;
301		440
302	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
303	@res = eval { $job->() };	443	@res = eval { $job->() };
304	warn $@ if $@;	444	warn $@ if $@;
305	undef $busy;	445	undef $busy;
306	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
307		447
308	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
309	Coro::cede or Event::one_event;	452	Event::one_event;
310	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
311		462
312	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
313	} else {	464	} else {
314	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
315		466
…		…
335	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
336		487
337	$coro	488	$coro
338	}	489	}
339		490
340	sub write_runtime {	491	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		492
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
344	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
345		497
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		499
350	aio_fsync $fh	500	sub fork_call(&@) {
351	and return;	501	my ($cb, @args) = @_;
352		502
353	close $fh	503	# we seemingly have to make a local copy of the whole thing,
354	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
355		506
356	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
357	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
358		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
359	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
360	}	651	}
361		652
362	=back	653	=back
363		654
364	=cut	655	=cut
365
366	#############################################################################
367
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492		656
493	#############################################################################	657	#############################################################################
494		658
495	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
496		660
…		…
498	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
499	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
500		664
501	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
502	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
503	crossfire+).	667	Crossfire TRT).
504		668
505	=over 4	669	=over 4
506		670
507	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
508		672
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	787	our @CB_MAP = ();
624		788
625	my %attachment;	789	my %attachment;
626		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
627	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
629		799
630	use sort 'stable';	800	use sort 'stable';
631		801
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
666		836
667	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		841
672	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	843	my $pkg = shift @arg;
674		844
675	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
705	}	875	}
706		876
707	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
708	} else {	878	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	880	}
711		881
712	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
713	}	883	}
714		884
…		…
716	if (ref $_[0]) {	886	if (ref $_[0]) {
717	_object_attach @_;	887	_object_attach @_;
718	} else {	888	} else {
719	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
720	}	890	}
		891	_recalc_want;
721	};	892	};
722		893
723	# all those should be optimised	894	# all those should be optimised
724	sub cf::attachable::detach {	895	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
729	reattach ($obj);	900	reattach ($obj);
730	} else {	901	} else {
731	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
732	}	903	}
		904	_recalc_want;
733	};	905	};
734		906
735	sub cf::attachable::attached {	907	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
737		909
…		…
752	";	924	";
753	die if $@;	925	die if $@;
754	}	926	}
755		927
756	our $override;	928	our $override;
757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
758		930
759	sub override {	931	sub override {
760	$override = 1;	932	$override = 1;
761	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
762	}	934	}
763		935
764	sub do_invoke {	936	sub do_invoke {
765	my $event = shift;	937	my $event = shift;
766	my $callbacks = shift;	938	my $callbacks = shift;
767		939
768	@invoke_results = ();	940	@INVOKE_RESULTS = ();
769		941
770	local $override;	942	local $override;
771		943
772	for (@$callbacks) {	944	for (@$callbacks) {
773	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
790		962
791	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
792		964
793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
794	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
795	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		968
797	=back	969	=back
798		970
799	=cut	971	=cut
800		972
801	#############################################################################	973	#############################################################################
802	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
803		1017
804	sub reattach {	1018	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		1023
808	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
809		1025
810	@$registry = ();	1026	@$registry = ();
811		1027
…		…
852	sub object_freezer_save {	1068	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
854		1070
855	sync_job {	1071	sync_job {
856	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
859		1076
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	1081	close $fh;
865		1082
866	if (@$objs) {	1083	if (@$objs) {
867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
868	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	1089	close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
874	}	1091	}
875	} else {	1092	} else {
876	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
882	}	1099	}
883	} else {	1100	} else {
884	aio_unlink $filename;	1101	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
886	}	1103	}
887	}	1104	};
888	}	1105	}
889		1106
890	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
892		1109
…		…
904	or return;	1121	or return;
905		1122
906	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
908	or return;	1125	or return;
		1126
909	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
910	}	1129	}
911		1130
		1131	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
914	return ($data, $av);	1135	($data, $av)
915	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
916		1143
917	#############################################################################	1144	#############################################################################
918	# command handling &c	1145	# command handling &c
919		1146
920	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1161	}
935		1162
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1164
938	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
939		1170
940	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
941	called.	1172	called.
942		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
943	=cut	1185	=cut
944		1186
945	sub register_extcmd {	1187	sub register_extcmd {
946	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
947		1189
948	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
949	}	1197	}
950		1198
951	cf::player->attach (	1199	cf::player->attach (
952	on_command => sub {	1200	on_command => sub {
953	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1210	cf::override;
963	},	1211	},
964	on_extcmd => sub {	1212	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
966		1214
967	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1216
969	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
975	} else {	1232	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1234	}
978		1235
979	cf::override;	1236	cf::override;
980	},	1237	},
981	);	1238	);
982		1239
983	sub load_extension {
984	my ($path) = @_;
985
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "... loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}
1009
1010	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1011	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1245	next unless -r $path;
1013	eval {	1246
1014	load_extension $ext;	1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
1015	1	1304	}
1016	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1017	}	1310	};
1018	}	1311	}
1019		1312
1020	#############################################################################	1313	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1314
1023	*cf::mapsupport::on_clean = sub {	1315	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1316
1036	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1037		1318
1038	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1039		1320
…		…
1045		1326
1046	=head3 cf::player	1327	=head3 cf::player
1047		1328
1048	=over 4	1329	=over 4
1049		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
1050	=item cf::player::find $login	1345	=item cf::player::find $login
1051		1346
1052	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1053		1348
1054	=cut	1349	=cut
1055		1350
1056	sub playerdir($) {	1351	sub playerdir($) {
1057	cf::localdir	1352	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1354	}
1063		1355
1064	sub path($) {	1356	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1358
1067	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1068	}	1360	}
1069		1361
1070	sub find_active($) {	1362	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1075		1367
1076	sub exists($) {	1368	sub exists($) {
1077	my ($login) = @_;	1369	my ($login) = @_;
1078		1370
1079	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1081	}	1373	}
1082		1374
1083	sub find($) {	1375	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1377	my $login = $_[0];
1086		1378
1087	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1088		1380
1089	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1093	}	1397	}
1094	}	1398	}
1095	}	1399	}
1096		1400
…		…
1106		1410
1107	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1109		1413
1110	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1111	Coro::cede;	1415	cf::cede_to_tick;
1112	}	1416	}
1113		1417
1114	sub new($) {	1418	sub new($) {
1115	my ($login) = @_;	1419	my ($login) = @_;
1116		1420
…		…
1122	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1123		1427
1124	$self	1428	$self
1125	}	1429	}
1126		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
1127	=item $pl->quit_character	1441	=item $pl->quit_character
1128		1442
1129	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1131		1445
1132	=cut	1446	=cut
1133		1447
1134	sub quit_character {	1448	sub quit_character {
1135	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1136		1452
1137	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
1139		1455
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
1150	IO::AIO::aio_rmtree $temp;	1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
1151	}	1487	}
1152		1488
1153	=item cf::player::list_logins	1489	=item cf::player::list_logins
1154		1490
1155	Returns am arrayref of all valid playernames in the system, can take a	1491	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1157		1493
1158	=cut	1494	=cut
1159		1495
1160	sub list_logins {	1496	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1498	or return [];
1163		1499
1164	my @logins;	1500	my @logins;
1165		1501
1166	for my $login (@$dirs) {	1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1170		1511
1171	utf8::decode $login;	1512	utf8::decode $login;
1172	push @logins, $login;	1513	push @logins, $login;
1173	}	1514	}
1174		1515
1175	\@logins	1516	\@logins
1176	}	1517	}
1177		1518
1178	=item $player->maps	1519	=item $player->maps
1179		1520
1180	Returns an arrayref of cf::path's of all maps that are private for this	1521	Returns an arrayref of map paths that are private for this
1181	player. May block.	1522	player. May block.
1182		1523
1183	=cut	1524	=cut
1184		1525
1185	sub maps($) {	1526	sub maps($) {
1186	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1530
1188	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1189	or return;	1532	or return;
1190		1533
1191	my @paths;	1534	my @paths;
…		…
1193	for (@$files) {	1536	for (@$files) {
1194	utf8::decode $_;	1537	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1539	next unless /^$PATH_SEP/o;
1197		1540
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1541	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1542	}
1200		1543
1201	\@paths	1544	\@paths
1202	}	1545	}
1203		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1598	=item $player->ext_reply ($msgid, @msg)
1205		1599
1206	Sends an ext reply to the player.	1600	Sends an ext reply to the player.
1207		1601
1208	=cut	1602	=cut
1209		1603
1210	sub ext_reply($$$%) {	1604	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1605	my ($self, $id, @msg) = @_;
1212		1606
1213	$msg{msgid} = $id;	1607	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1608	}
1217		1609
1218	package cf;	1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
		1637	my ($path) = @_;
		1638
		1639	my ($match, $specificity);
		1640
		1641	for my $region (list) {
		1642	if ($region->{match} && $path =~ $region->{match}) {
		1643	($match, $specificity) = ($region, $region->specificity)
		1644	if $region->specificity > $specificity;
		1645	}
		1646	}
		1647
		1648	$match
		1649	}
1219		1650
1220	=back	1651	=back
1221
1222		1652
1223	=head3 cf::map	1653	=head3 cf::map
1224		1654
1225	=over 4	1655	=over 4
1226		1656
…		…
1229	package cf::map;	1659	package cf::map;
1230		1660
1231	use Fcntl;	1661	use Fcntl;
1232	use Coro::AIO;	1662	use Coro::AIO;
1233		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1234	our $MAX_RESET = 3600;	1668	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1669	our $DEFAULT_RESET = 3000;
1236		1670
1237	sub generate_random_map {	1671	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1239
1240	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1674	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1254	}	1814	}
1255		1815
1256	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1257	# all maps in C++...	1817	# all maps in C++...
1258	sub change_all_map_light {	1818	sub change_all_map_light {
…		…
1260		1820
1261	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1263	}	1823	}
1264		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1265	sub try_load_header($) {	1841	sub load_header_from($) {
1266	my ($path) = @_;	1842	my ($self, $path) = @_;
1267		1843
1268	utf8::encode $path;	1844	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1270	or return;	1846	or return;
1271		1847
1272	my $map = cf::map::new	1848	$self->_load_header ($f)
1273	or return;	1849	or return;
1274		1850
1275	# for better error messages only, will be overwritten	1851	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	1852	$f->resolve_delayed_derefs;
1277		1853
1278	$map->load_header ($path)	1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1279	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1280		1900
1281	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1282		1903
1283	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
		1905	unless $self->default_region;
		1906
		1907	1
1284	}	1908	}
1285		1909
1286	sub find;	1910	sub find;
1287	sub find {	1911	sub find {
1288	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1289		1913
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1295	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1296		1918
1297	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1299		1922
1300	# do it the slow way	1923	my $map = new_from_path cf::map $path
1301	my $map = try_load_header $path->save_path;
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	1924	or return;
1319		1925
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1332		1927
1333	Coro::cede;	1928	$map->load_header
		1929	or return;
1334		1930
1335	if ($map->should_reset) {	1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1336	$map->reset;	1936	$map->reset;
1337	undef $guard;
1338	$map = find $path	1937	return find $path;
1339	or return;
1340	}	1938	}
1341		1939
1342	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1343	}	1941	}
1344	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1345		1946
1346	sub load {	1947	sub load {
1347	my ($self) = @_;	1948	my ($self) = @_;
1348		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1349	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1351		1956
		1957	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		1959
1354	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1355		1961
1356	$self->alloc;	1962	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1358	or return;	1970	or return;
1359		1971
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	1973	if delete $self->{load_original};
1362		1974
1363	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	1976	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	1979	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1368	}	1983	}
1369	}	1984	}
1370		1985
1371	Coro::cede;	1986	$f->resolve_delayed_derefs;
1372		1987
		1988	cf::cede_to_tick;
1373	# now do the right thing for maps	1989	# now do the right thing for maps
1374	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1386	$self->activate;	2002	$self->activate;
1387	}	2003	}
1388		2004
1389	Coro::cede;	2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
1390		2007
1391	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
		2009	}
		2010
		2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
1392	}	2024	}
1393		2025
1394	# find and load all maps in the 3x3 area around a map	2026	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	2027	sub load_neighbours {
1396	my ($map) = @_;	2028	my ($map) = @_;
1397		2029
1398	my @diag; # diagonal neighbours	2030	my @neigh; # diagonal neighbours
1399		2031
1400	for (0 .. 3) {	2032	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	2033	my $neigh = $map->tile_path ($_)
1402	or next;	2034	or next;
1403	$neigh = find $neigh, $map	2035	$neigh = find $neigh, $map
1404	or next;	2036	or next;
1405	$neigh->load;	2037	$neigh->load;
1406		2038
		2039	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2042	}
1410		2043
1411	for (@diag) {	2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2046	my $neigh = find $path, $origin
1413	or next;	2047	or next;
1414	$neigh->load;	2048	$neigh->load;
1415	}	2049	}
1416	}	2050	}
1417		2051
…		…
1422	}	2056	}
1423		2057
1424	sub do_load_sync {	2058	sub do_load_sync {
1425	my ($map) = @_;	2059	my ($map) = @_;
1426		2060
		2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2062	if $Coro::current == $Coro::main;
		2063
1427	cf::sync_job { $map->load };	2064	cf::sync_job { $map->load };
1428	}	2065	}
1429		2066
1430	our %MAP_PREFETCH;	2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
1431	our $MAP_PREFETCHER = Coro::async {	2081	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2082	$Coro::current->{desc} = "map prefetcher";
		2083
1433	while (%MAP_PREFETCH) {	2084	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2085	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
1436	my $path = delete $MAP_PREFETCH{$key};	2090	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2091	}
1442	Coro::schedule;	2092	}
		2093	undef $MAP_PREFETCHER;
1443	}	2094	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2095	$MAP_PREFETCHER->prio (6);
1458		2096
1459	()	2097	()
1460	}	2098	}
1461		2099
1462	sub save {	2100	sub save {
1463	my ($self) = @_;	2101	my ($self) = @_;
1464		2102
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2104
1467	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1468		2106
1469	return unless $self->dirty;	2107	return unless $self->dirty;
1470		2108
1471	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		2111
1474	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1475		2113
1476	return if $self->{deny_save};	2114	return if $self->{deny_save};
1477		2115
1478	local $self->{last_access} = $self->last_access;#d#	2116	local $self->{last_access} = $self->last_access;#d#
1479		2117
1480	cf::async {	2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
1481	$_->contr->save for $self->players;	2120	$_->contr->save for $self->players;
1482	};	2121	};
1483		2122
1484	if ($uniq) {	2123	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	2126	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	2128	}
1490	}	2129	}
1491		2130
1492	sub swap_out {	2131	sub swap_out {
1493	my ($self) = @_;	2132	my ($self) = @_;
1494		2133
1495	# save first because save cedes	2134	# save first because save cedes
1496	$self->save;	2135	$self->save;
1497		2136
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2138
1500	return if $self->players;	2139	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1502	return if $self->{deny_save};	2141	return if $self->{deny_save};
1503		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1504	$self->clear;	2147	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2148	}
1507		2149
1508	sub reset_at {	2150	sub reset_at {
1509	my ($self) = @_;	2151	my ($self) = @_;
1510		2152
1511	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1514		2155
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2158
…		…
1522	my ($self) = @_;	2163	my ($self) = @_;
1523		2164
1524	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1525	}	2166	}
1526		2167
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2168	sub reset {
1549	my ($self) = @_;	2169	my ($self) = @_;
1550		2170
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2172
1553	return if $self->players;	2173	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2174
1556	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1557		2186
1558	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1559		2188
		2189	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1561		2192
1562	$self->unlink_save;	2193	$self->unlink_save;
1563	$self->destroy;	2194	$self->destroy;
1564	}	2195	}
1565		2196
1566	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1567		2198
1568	sub nuke {	2199	sub nuke {
1569	my ($self) = @_;	2200	my ($self) = @_;
1570		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1574	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1575	}	2219	}
1576		2220
1577	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2222
1580	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1582	}	2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
		2237	}
1583		2238
1584	$map	2239	=item $maps = cf::map::random_maps
		2240
		2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
		2243
		2244	=cut
		2245
		2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
1585	}	2255	}
1586		2256
1587	=item cf::map::unique_maps	2257	=item cf::map::unique_maps
1588		2258
1589	Returns an arrayref of cf::path's of all shared maps that have	2259	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2260	instantiated unique items. May block.
1591		2261
1592	=cut	2262	=cut
1593		2263
1594	sub unique_maps() {	2264	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2265	[
1596	or return;	2266	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2267	utf8::decode $_;
1602	next if /\.pst$/;	2268	/\.map$/
1603	next unless /^$PATH_SEP/o;	2269	? normalise $_
1604		2270	: ()
1605	push @paths, new cf::path $_;	2271	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2272	]
1607
1608	\@paths
1609	}	2273	}
1610		2274
1611	package cf;	2275	package cf;
1612		2276
1613	=back	2277	=back
…		…
1631	map { $_, inv_recursive_ $_->inv } @_	2295	map { $_, inv_recursive_ $_->inv } @_
1632	}	2296	}
1633		2297
1634	sub inv_recursive {	2298	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
1636	}	2328	}
1637		2329
1638	package cf;	2330	package cf;
1639		2331
1640	=back	2332	=back
…		…
1659		2351
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2353
1662	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1664	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1667	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1668	}	2379	}
1669		2380
1670	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1671		2382
1672	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1685		2396
1686	=item $player_object->enter_link	2397	=item $player_object->enter_link
1687		2398
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2400
1690	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1691	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1692		2403
		2404	Will never block.
		2405
1693	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1694		2407
1695	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2411	fails, to the emergency map position.
1699		2412
1700	Might block.	2413	Might block.
1701		2414
1702	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1703		2426
1704	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2428	my ($self) = @_;
1706		2429
1707	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1708		2431
1709	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2433
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1713		2436
1714	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2438	}
1716		2439
1717	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1719		2444
1720	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1721		2446
1722	unless ($map) {	2447	unless ($map) {
1723	# restore original map position	2448	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1740		2465
1741	$map->load;	2466	$map->load;
1742	$map->load_diag;	2467	$map->load_neighbours;
1743		2468
1744	return unless $self->contr->active;	2469	return unless $self->contr->active;
1745	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1747	}	2474	}
1748		2475
1749	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2477
1753	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1757	};	2482	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2483
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2484	=cut
		2485
		2486	our $GOTOGEN;
1784		2487
1785	sub cf::object::player::goto {	2488	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2490
1788	$path = new cf::path $path;	2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2493
1790	$self->enter_link;	2494	$self->enter_link;
1791		2495
1792	(async {	2496	(async {
1793	my $map = cf::map::find $path->as_string;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
		2498
		2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1795		2523	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1800		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1802	})->prio (1);	2542	})->prio (1);
1803	}	2543	}
1804		2544
1805	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1806		2546
…		…
1808		2548
1809	sub parse_random_map_params {	2549	sub parse_random_map_params {
1810	my ($spec) = @_;	2550	my ($spec) = @_;
1811		2551
1812	my $rmp = { # defaults	2552	my $rmp = { # defaults
1813	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1815	};	2557	};
1816		2558
1817	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1819		2561
…		…
1823	$rmp	2565	$rmp
1824	}	2566	}
1825		2567
1826	sub prepare_random_map {	2568	sub prepare_random_map {
1827	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2572
1829	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2575	# that depends on the exit object
1832		2576
1833	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1834		2578
1835	if ($exit->map) {	2579	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1840	}	2584	}
1841		2585
1842	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1843		2587
1844	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1845	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1846		2591
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1849		2596
1850	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2598	$exit->msg (undef);
1852	}	2599	}
1853	}	2600	}
…		…
1855	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1857		2604
1858	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1859		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1860	$self->enter_link;	2618	$self->enter_link;
1861		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1862	(async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
1863	$self->deactivate_recursive; # just to be sure	2627	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2628	unless (eval {
1865	prepare_random_map $exit	2629	$self->goto ($slaying, $hp, $sp);
1866	if $exit->slaying eq "/!";
1867
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1870		2630
1871	1;	2631	1;
1872	}) {	2632	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2635	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2637
1878	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2639	$self->leave_link;
1880	}	2640	}
1881	})->prio (1);	2641	})->prio (1);
…		…
1894		2654
1895	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1897		2657
1898	utf8::encode $text;	2658	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2660	}
1901		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/lookat" => {
		2685	id => "infobox",
		2686	title => "Look",
		2687	reply => undef,
		2688	tooltip => "What you saw there",
		2689	},
		2690	);
		2691
		2692	sub cf::client::send_msg {
		2693	my ($self, $channel, $msg, $color, @extra) = @_;
		2694
		2695	$msg = $self->pl->expand_cfpod ($msg);
		2696
		2697	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2698
		2699	# check predefined channels, for the benefit of C
		2700	if ($CHANNEL{$channel}) {
		2701	$channel = $CHANNEL{$channel};
		2702
		2703	$self->ext_msg (channel_info => $channel)
		2704	if $self->can_msg;
		2705
		2706	$channel = $channel->{id};
		2707
		2708	} elsif (ref $channel) {
		2709	# send meta info to client, if not yet sent
		2710	unless (exists $self->{channel}{$channel->{id}}) {
		2711	$self->{channel}{$channel->{id}} = $channel;
		2712	$self->ext_msg (channel_info => $channel)
		2713	if $self->can_msg;
		2714	}
		2715
		2716	$channel = $channel->{id};
		2717	}
		2718
		2719	return unless @extra || length $msg;
		2720
		2721	if ($self->can_msg) {
		2722	# default colour, mask it out
		2723	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2724	if $color & cf::NDI_DEF;
		2725
		2726	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2727	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2728	} else {
		2729	if ($color >= 0) {
		2730	# replace some tags by gcfclient-compatible ones
		2731	for ($msg) {
		2732	1 while
		2733	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2734	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2735	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2736	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2737	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2738	}
		2739
		2740	$color &= cf::NDI_COLOR_MASK;
		2741
		2742	utf8::encode $msg;
		2743
		2744	if (0 && $msg =~ /\[/) {
		2745	# COMMAND/INFO
		2746	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2747	} else {
		2748	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2749	$self->send_packet ("drawinfo $color $msg")
		2750	}
		2751	}
		2752	}
		2753	}
		2754
		2755	=item $client->ext_msg ($type, @msg)
		2756
		2757	Sends an ext event to the client.
		2758
		2759	=cut
		2760
		2761	sub cf::client::ext_msg($$@) {
		2762	my ($self, $type, @msg) = @_;
		2763
		2764	if ($self->extcmd == 2) {
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2766	} elsif ($self->extcmd == 1) { # TODO: remove
		2767	push @msg, msgtype => "event_$type";
		2768	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2769	}
		2770	}
		2771
		2772	=item $client->ext_reply ($msgid, @msg)
		2773
		2774	Sends an ext reply to the client.
		2775
		2776	=cut
		2777
		2778	sub cf::client::ext_reply($$@) {
		2779	my ($self, $id, @msg) = @_;
		2780
		2781	if ($self->extcmd == 2) {
		2782	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2783	} elsif ($self->extcmd == 1) {
		2784	#TODO: version 1, remove
		2785	unshift @msg, msgtype => "reply", msgid => $id;
		2786	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2787	}
		2788	}
1902		2789
1903	=item $success = $client->query ($flags, "text", \&cb)	2790	=item $success = $client->query ($flags, "text", \&cb)
1904		2791
1905	Queues a query to the client, calling the given callback with	2792	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2794	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		2795
1909	Queries can fail, so check the return code. Or don't, as queries will become	2796	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	2797	become reliable at some point in the future.
1911		2798
1912	=cut	2799	=cut
1913		2800
1914	sub cf::client::query {	2801	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	2802	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	2810	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2811	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		2812
1926	$self->send_packet ($self->{query_queue}[0][0])	2813	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	2814	if @{ $self->{query_queue} } == 1;
		2815
		2816	1
1928	}	2817	}
1929		2818
1930	cf::client->attach (	2819	cf::client->attach (
		2820	on_connect => sub {
		2821	my ($ns) = @_;
		2822
		2823	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2824	},
1931	on_reply => sub {	2825	on_reply => sub {
1932	my ($ns, $msg) = @_;	2826	my ($ns, $msg) = @_;
1933		2827
1934	# this weird shuffling is so that direct followup queries	2828	# this weird shuffling is so that direct followup queries
1935	# get handled first	2829	# get handled first
1936	my $queue = delete $ns->{query_queue}	2830	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	2831	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		2832
1939	(shift @$queue)->[1]->($msg);	2833	(shift @$queue)->[1]->($msg);
		2834	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2835
1941	push @{ $ns->{query_queue} }, @$queue;	2836	push @{ $ns->{query_queue} }, @$queue;
1942		2837
1943	if (@{ $ns->{query_queue} } == @$queue) {	2838	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2839	if (@$queue) {
…		…
1946	} else {	2841	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2842	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	2843	}
1949	}	2844	}
1950	},	2845	},
		2846	on_exticmd => sub {
		2847	my ($ns, $buf) = @_;
		2848
		2849	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2850
		2851	if (ref $msg) {
		2852	my ($type, $reply, @payload) =
		2853	"ARRAY" eq ref $msg
		2854	? @$msg
		2855	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2856
		2857	my @reply;
		2858
		2859	if (my $cb = $EXTICMD{$type}) {
		2860	@reply = $cb->($ns, @payload);
		2861	}
		2862
		2863	$ns->ext_reply ($reply, @reply)
		2864	if $reply;
		2865
		2866	} else {
		2867	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2868	}
		2869
		2870	cf::override;
		2871	},
1951	);	2872	);
1952		2873
1953	=item $client->async (\&cb)	2874	=item $client->async (\&cb)
1954		2875
1955	Create a new coroutine, running the specified callback. The coroutine will	2876	Create a new coroutine, running the specified callback. The coroutine will
…		…
1996	our $safe = new Safe "safe";	2917	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	2918	our $safe_hole = new Safe::Hole;
1998		2919
1999	$SIG{FPE} = 'IGNORE';	2920	$SIG{FPE} = 'IGNORE';
2000		2921
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2922	$safe->permit_only (Opcode::opset qw(
		2923	:base_core :base_mem :base_orig :base_math
		2924	grepstart grepwhile mapstart mapwhile
		2925	sort time
		2926	));
2002		2927
2003	# here we export the classes and methods available to script code	2928	# here we export the classes and methods available to script code
2004		2929
2005	=pod	2930	=pod
2006		2931
2007	The following fucntions and emthods are available within a safe environment:	2932	The following functions and methods are available within a safe environment:
2008		2933
2009	cf::object contr pay_amount pay_player map	2934	cf::object
		2935	contr pay_amount pay_player map x y force_find force_add destroy
		2936	insert remove name archname title slaying race decrease_ob_nr
		2937
2010	cf::object::player player	2938	cf::object::player
2011	cf::player peaceful	2939	player
2012	cf::map trigger	2940
		2941	cf::player
		2942	peaceful
		2943
		2944	cf::map
		2945	trigger
2013		2946
2014	=cut	2947	=cut
2015		2948
2016	for (	2949	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	2950	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2951	insert remove inv name archname title slaying race
		2952	decrease_ob_nr destroy)],
2018	["cf::object::player" => qw(player)],	2953	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	2954	["cf::player" => qw(peaceful)],
2020	["cf::map" => qw(trigger)],	2955	["cf::map" => qw(trigger)],
2021	) {	2956	) {
2022	no strict 'refs';	2957	no strict 'refs';
…		…
2093	=back	3028	=back
2094		3029
2095	=cut	3030	=cut
2096		3031
2097	#############################################################################	3032	#############################################################################
		3033	# the server's init and main functions
2098		3034
2099	=head2 EXTENSION DATABASE SUPPORT	3035	sub load_facedata($) {
		3036	my ($path) = @_;
2100		3037
2101	Crossfire maintains a very simple database for extension use. It can	3038	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	3039	# for this (global event?)
2103	excludes objects.	3040	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		3041
2105	The parameter C<$family> should best start with the name of the extension	3042	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		3043
2108	=over 4	3044	warn "loading facedata from $path\n";
2109		3045
2110	=item $hashref = cf::db_get $family	3046	my $facedata;
		3047	0 < aio_load $path, $facedata
		3048	or die "$path: $!";
2111		3049
2112	Return a hashref for use by the extension C<$family>, which can be	3050	$facedata = Coro::Storable::thaw $facedata;
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115		3051
2116	=item $value = cf::db_get $family => $key	3052	$facedata->{version} == 2
		3053	or cf::cleanup "$path: version mismatch, cannot proceed.";
2117		3054
2118	Returns a single value from the database	3055	# patch in the exptable
2119		3056	$facedata->{resource}{"res/exp_table"} = {
2120	=item cf::db_put $family => $hashref	3057	type => FT_RSRC,
2121		3058	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}
2148
2149	my $pid;
2150
2151	sub db_save() {
2152	waitpid $pid, 0 if $pid;
2153	if (0 == ($pid = fork)) {
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	3059	};
		3060	cf::cede_to_tick;
2171		3061
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3062	{
		3063	my $faces = $facedata->{faceinfo};
2176		3064
2177	sub db_get($;$) {	3065	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3066	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}	3067	cf::face::set_visibility $idx, $info->{visibility};
2180	: ($DB->{$_[0]} ||= { })	3068	cf::face::set_magicmap $idx, $info->{magicmap};
2181	}	3069	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3070	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2182		3071
2183	sub db_put($$;$) {	3072	cf::cede_to_tick;
2184	if (@_ >= 3) {
2185	$DB->{$_[0]}{$_[1]} = $_[2];
2186	} else {
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191
2192	cf::global->attach (
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3073	}
2197	);
2198	}
2199		3074
2200	#############################################################################	3075	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3076	next unless $info->{smooth};
		3077	my $idx = cf::face::find $face
		3078	or next;
		3079	if (my $smooth = cf::face::find $info->{smooth}) {
		3080	cf::face::set_smooth $idx, $smooth;
		3081	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3082	} else {
		3083	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3084	}
2202		3085
2203	sub cfg_load {	3086	cf::cede_to_tick;
		3087	}
		3088	}
		3089
		3090	{
		3091	my $anims = $facedata->{animinfo};
		3092
		3093	while (my ($anim, $info) = each %$anims) {
		3094	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3095	cf::cede_to_tick;
		3096	}
		3097
		3098	cf::anim::invalidate_all; # d'oh
		3099	}
		3100
		3101	{
		3102	# TODO: for gcfclient pleasure, we should give resources
		3103	# that gcfclient doesn't grok a >10000 face index.
		3104	my $res = $facedata->{resource};
		3105
		3106	my $soundconf = delete $res->{"res/sound.conf"};
		3107
		3108	while (my ($name, $info) = each %$res) {
		3109	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3110	my $data;
		3111
		3112	if ($info->{type} & 1) {
		3113	# prepend meta info
		3114
		3115	my $meta = $enc->encode ({
		3116	name => $name,
		3117	%{ $info->{meta} || {} },
		3118	});
		3119
		3120	$data = pack "(w/a*)*", $meta, $info->{data};
		3121	} else {
		3122	$data = $info->{data};
		3123	}
		3124
		3125	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3126	cf::face::set_type $idx, $info->{type};
		3127
		3128	cf::cede_to_tick;
		3129	}
		3130
		3131	if ($soundconf) {
		3132	$soundconf = $enc->decode (delete $soundconf->{data});
		3133
		3134	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3135	my $sound = $soundconf->{compat}[$_]
		3136	or next;
		3137
		3138	my $face = cf::face::find "sound/$sound->[1]";
		3139	cf::sound::set $sound->[0] => $face;
		3140	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3141	}
		3142
		3143	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3144	my $face = cf::face::find "sound/$v";
		3145	cf::sound::set $k => $face;
		3146	}
		3147	}
		3148	}
		3149
		3150	1
		3151	}
		3152
		3153	register_exticmd fx_want => sub {
		3154	my ($ns, $want) = @_;
		3155
		3156	while (my ($k, $v) = each %$want) {
		3157	$ns->fx_want ($k, $v);
		3158	}
		3159	};
		3160
		3161	sub reload_regions {
		3162	# HACK to clear player env face cache, we need some signal framework
		3163	# for this (global event?)
		3164	%ext::player_env::MUSIC_FACE_CACHE = ();
		3165
		3166	load_resource_file "$MAPDIR/regions"
		3167	or die "unable to load regions file\n";
		3168
		3169	for (cf::region::list) {
		3170	$_->{match} = qr/$_->{match}/
		3171	if exists $_->{match};
		3172	}
		3173	}
		3174
		3175	sub reload_facedata {
		3176	load_facedata "$DATADIR/facedata"
		3177	or die "unable to load facedata\n";
		3178	}
		3179
		3180	sub reload_archetypes {
		3181	load_resource_file "$DATADIR/archetypes"
		3182	or die "unable to load archetypes\n";
		3183	#d# NEED to laod twice to resolve forward references
		3184	# this really needs to be done in an extra post-pass
		3185	# (which needs to be synchronous, so solve it differently)
		3186	load_resource_file "$DATADIR/archetypes"
		3187	or die "unable to load archetypes\n";
		3188	}
		3189
		3190	sub reload_treasures {
		3191	load_resource_file "$DATADIR/treasures"
		3192	or die "unable to load treasurelists\n";
		3193	}
		3194
		3195	sub reload_resources {
		3196	warn "reloading resource files...\n";
		3197
		3198	reload_regions;
		3199	reload_facedata;
		3200	#reload_archetypes;#d#
		3201	reload_archetypes;
		3202	reload_treasures;
		3203
		3204	warn "finished reloading resource files\n";
		3205	}
		3206
		3207	sub init {
		3208	reload_resources;
		3209	}
		3210
		3211	sub reload_config {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3212	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	3213	or return;
2206		3214
2207	local $/;	3215	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	3216	*CFG = YAML::Syck::Load <$fh>;
2209		3217
…		…
2223		3231
2224	sub main {	3232	sub main {
2225	# we must not ever block the main coroutine	3233	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3234	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3235	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3236	(async {
		3237	$Coro::current->{desc} = "IDLE BUG HANDLER";
2228	async { Event::one_event };	3238	Event::one_event;
		3239	})->prio (Coro::PRIO_MAX);
2229	};	3240	};
2230		3241
2231	cfg_load;	3242	reload_config;
2232	db_load;	3243	db_init;
2233	load_extensions;	3244	load_extensions;
		3245
		3246	$TICK_WATCHER->start;
2234	Event::loop;	3247	Event::loop;
2235	}	3248	}
2236		3249
2237	#############################################################################	3250	#############################################################################
2238	# initialisation and cleanup	3251	# initialisation and cleanup
2239		3252
2240	# install some emergency cleanup handlers	3253	# install some emergency cleanup handlers
2241	BEGIN {	3254	BEGIN {
2242	for my $signal (qw(INT HUP TERM)) {	3255	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3256	Event->signal (
		3257	reentrant => 0,
2244	data => WF_AUTOCANCEL,	3258	data => WF_AUTOCANCEL,
2245	signal => $signal,	3259	signal => $signal,
		3260	prio => 0,
2246	cb => sub {	3261	cb => sub {
2247	cf::cleanup "SIG$signal";	3262	cf::cleanup "SIG$signal";
2248	},	3263	},
2249	);	3264	);
2250	}	3265	}
2251	}	3266	}
2252		3267
		3268	sub write_runtime {
		3269	my $runtime = "$LOCALDIR/runtime";
		3270
		3271	# first touch the runtime file to show we are still running:
		3272	# the fsync below can take a very very long time.
		3273
		3274	IO::AIO::aio_utime $runtime, undef, undef;
		3275
		3276	my $guard = cf::lock_acquire "write_runtime";
		3277
		3278	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3279	or return;
		3280
		3281	my $value = $cf::RUNTIME + 90 + 10;
		3282	# 10 is the runtime save interval, for a monotonic clock
		3283	# 60 allows for the watchdog to kill the server.
		3284
		3285	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3286	and return;
		3287
		3288	# always fsync - this file is important
		3289	aio_fsync $fh
		3290	and return;
		3291
		3292	# touch it again to show we are up-to-date
		3293	aio_utime $fh, undef, undef;
		3294
		3295	close $fh
		3296	or return;
		3297
		3298	aio_rename "$runtime~", $runtime
		3299	and return;
		3300
		3301	warn "runtime file written.\n";
		3302
		3303	1
		3304	}
		3305
2253	sub emergency_save() {	3306	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3307	my $freeze_guard = cf::freeze_mainloop;
2255		3308
2256	warn "enter emergency perl save\n";	3309	warn "enter emergency perl save\n";
2257		3310
2258	cf::sync_job {	3311	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	3312	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3313	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3314	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3315	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	3316	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3317	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3318	$pl->valid or next;
		3319	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	3320	$pl->save;
2267	}	3321	}
2268	warn "end emergency player save\n";	3322	warn "end emergency player save\n";
2269		3323
2270	warn "begin emergency map save\n";	3324	warn "begin emergency map save\n";
…		…
2272	my $map = $cf::MAP{$path} or next;	3326	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3327	$map->valid or next;
2274	$map->save;	3328	$map->save;
2275	}	3329	}
2276	warn "end emergency map save\n";	3330	warn "end emergency map save\n";
		3331
		3332	warn "begin emergency database checkpoint\n";
		3333	BDB::db_env_txn_checkpoint $DB_ENV;
		3334	warn "end emergency database checkpoint\n";
2277	};	3335	};
2278		3336
2279	warn "leave emergency perl save\n";	3337	warn "leave emergency perl save\n";
2280	}	3338	}
2281		3339
		3340	sub post_cleanup {
		3341	my ($make_core) = @_;
		3342
		3343	warn Carp::longmess "post_cleanup backtrace"
		3344	if $make_core;
		3345	}
		3346
2282	sub reload() {	3347	sub do_reload_perl() {
2283	# can/must only be called in main	3348	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3349	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	3350	warn "can only reload from main coroutine";
2286	return;	3351	return;
2287	}	3352	}
2288		3353
2289	warn "reloading...";	3354	warn "reloading...";
2290		3355
2291	warn "freezing server";	3356	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	3357
		3358	cf::sync_job {
		3359	cf::write_runtime; # external watchdog should not bark
2293	cf::emergency_save;	3360	cf::emergency_save;
		3361	cf::write_runtime; # external watchdog should not bark
2294		3362
2295	warn "sync database to disk";	3363	warn "syncing database to disk";
2296	cf::db_sync;	3364	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		3365
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	3366	# if anything goes wrong in here, we should simply crash as we already saved
2301		3367
2302	warn "cancel all watchers";	3368	warn "cancelling all WF_AUTOCANCEL watchers";
2303	for (Event::all_watchers) {	3369	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	3370	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}	3371	}
2306		3372
		3373	warn "flushing outstanding aio requests";
		3374	for (;;) {
		3375	BDB::flush;
		3376	IO::AIO::flush;
		3377	Coro::cede_notself;
		3378	last unless IO::AIO::nreqs || BDB::nreqs;
		3379	warn "iterate...";
		3380	}
		3381
		3382	++$RELOAD;
		3383
2307	warn "cancel all extension coros";	3384	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	3385	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	3386	%EXT_CORO = ();
2310		3387
2311	warn "remove commands";	3388	warn "removing commands";
2312	%COMMAND = ();	3389	%COMMAND = ();
2313		3390
2314	warn "remove ext commands";	3391	warn "removing ext/exti commands";
2315	%EXTCMD = ();	3392	%EXTCMD = ();
		3393	%EXTICMD = ();
2316		3394
2317	warn "unload/nuke all extensions";	3395	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	3396	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	3397	warn "... unloading $pkg";
2320		3398
2321	if (my $cb = $pkg->can ("unload")) {	3399	if (my $cb = $pkg->can ("unload")) {
2322	eval {	3400	eval {
…		…
2327		3405
2328	warn "... nuking $pkg";	3406	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;	3407	Symbol::delete_package $pkg;
2330	}	3408	}
2331		3409
2332	warn "unload all perl modules loaded from $LIBDIR";	3410	warn "unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	3411	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3412	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		3413
2336	warn "removing <$k>";	3414	warn "... unloading $k";
2337	delete $INC{$k};	3415	delete $INC{$k};
2338		3416
2339	$k =~ s/\.pm$//;	3417	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	3418	$k =~ s/\//::/g;
2341		3419
…		…
2344	}	3422	}
2345		3423
2346	Symbol::delete_package $k;	3424	Symbol::delete_package $k;
2347	}	3425	}
2348		3426
2349	warn "get rid of safe::, as good as possible";	3427	warn "getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	3428	Symbol::delete_package "safe::$_"
2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3429	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2352		3430
2353	warn "unload cf.pm \"a bit\"";	3431	warn "unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	3432	delete $INC{"cf.pm"};
		3433	delete $INC{"cf/pod.pm"};
2355		3434
2356	# don't, removes xs symbols, too,	3435	# don't, removes xs symbols, too,
2357	# and global variables created in xs	3436	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	3437	#Symbol::delete_package __PACKAGE__;
2359		3438
		3439	warn "unload completed, starting to reload now";
		3440
2360	warn "reloading cf.pm";	3441	warn "reloading cf.pm";
2361	require cf;	3442	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3443	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2363		3444
2364	warn "load config and database again";	3445	warn "loading config and database again";
2365	cf::cfg_load;	3446	cf::reload_config;
2366	cf::db_load;
2367		3447
2368	warn "load extensions";	3448	warn "loading extensions";
2369	cf::load_extensions;	3449	cf::load_extensions;
2370		3450
2371	warn "reattach attachments to objects/players";	3451	warn "reattaching attachments to objects/players";
2372	_global_reattach;	3452	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	3453	warn "reattaching attachments to maps";
2374	reattach $_ for values %MAP;	3454	reattach $_ for values %MAP;
2375	};	3455	warn "reattaching attachments to players";
		3456	reattach $_ for values %PLAYER;
2376		3457
2377	if ($@) {	3458	warn "leaving sync_job";
		3459
		3460	1
		3461	} or do {
2378	warn $@;	3462	warn $@;
2379	warn "error while reloading, exiting.";	3463	warn "error while reloading, exiting.";
2380	exit 1;	3464	exit 1;
2381	}	3465	};
2382		3466
2383	warn "reloaded";	3467	warn "reloaded";
2384	};	3468	};
2385		3469
2386	#############################################################################	3470	our $RELOAD_WATCHER; # used only during reload
2387		3471
2388	unless ($LINK_MAP) {	3472	sub reload_perl() {
2389	$LINK_MAP = cf::map::new;	3473	# doing reload synchronously and two reloads happen back-to-back,
		3474	# coro crashes during coro_state_free->destroy here.
2390		3475
2391	$LINK_MAP->width (41);	3476	$RELOAD_WATCHER ||= Event->timer (
2392	$LINK_MAP->height (41);	3477	reentrant => 0,
2393	$LINK_MAP->alloc;
2394	$LINK_MAP->path ("{link}");
2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2397
2398	# dirty hack because... archetypes are not yet loaded
2399	Event->timer (
2400	after => 10,	3478	after => 0,
		3479	data => WF_AUTOCANCEL,
2401	cb => sub {	3480	cb => sub {
2402	$_[0]->w->cancel;	3481	do_reload_perl;
2403		3482	undef $RELOAD_WATCHER;
2404	# provide some exits "home"
2405	my $exit = cf::object::new "exit";
2406
2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2410
2411	$LINK_MAP->insert ($exit->clone, 19, 19);
2412	$LINK_MAP->insert ($exit->clone, 19, 20);
2413	$LINK_MAP->insert ($exit->clone, 19, 21);
2414	$LINK_MAP->insert ($exit->clone, 20, 19);
2415	$LINK_MAP->insert ($exit->clone, 20, 21);
2416	$LINK_MAP->insert ($exit->clone, 21, 19);
2417	$LINK_MAP->insert ($exit->clone, 21, 20);
2418	$LINK_MAP->insert ($exit->clone, 21, 21);
2419
2420	$exit->destroy;
2421	});	3483	},
2422		3484	);
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	3485	}
2428		3486
2429	register_command "reload" => sub {	3487	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	3488	my ($who, $arg) = @_;
2431		3489
2432	if ($who->flag (FLAG_WIZ)) {	3490	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	3491	$who->message ("reloading server.");
		3492	async {
		3493	$Coro::current->{desc} = "perl_reload";
		3494	reload_perl;
		3495	};
2436	}	3496	}
2437	};	3497	};
2438		3498
2439	unshift @INC, $LIBDIR;	3499	unshift @INC, $LIBDIR;
		3500
		3501	my $bug_warning = 0;
		3502
		3503	our @WAIT_FOR_TICK;
		3504	our @WAIT_FOR_TICK_BEGIN;
		3505
		3506	sub wait_for_tick {
		3507	return unless $TICK_WATCHER->is_active;
		3508	return if $Coro::current == $Coro::main;
		3509
		3510	my $signal = new Coro::Signal;
		3511	push @WAIT_FOR_TICK, $signal;
		3512	$signal->wait;
		3513	}
		3514
		3515	sub wait_for_tick_begin {
		3516	return unless $TICK_WATCHER->is_active;
		3517	return if $Coro::current == $Coro::main;
		3518
		3519	my $signal = new Coro::Signal;
		3520	push @WAIT_FOR_TICK_BEGIN, $signal;
		3521	$signal->wait;
		3522	}
2440		3523
2441	$TICK_WATCHER = Event->timer (	3524	$TICK_WATCHER = Event->timer (
2442	reentrant => 0,	3525	reentrant => 0,
		3526	parked => 1,
2443	prio => 0,	3527	prio => 0,
2444	at => $NEXT_TICK || $TICK,	3528	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,	3529	data => WF_AUTOCANCEL,
2446	cb => sub {	3530	cb => sub {
		3531	if ($Coro::current != $Coro::main) {
		3532	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3533	unless ++$bug_warning > 10;
		3534	return;
		3535	}
		3536
		3537	$NOW = $tick_start = Event::time;
		3538
2447	cf::server_tick; # one server iteration	3539	cf::server_tick; # one server iteration
		3540
2448	$RUNTIME += $TICK;	3541	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;	3542	$NEXT_TICK += $TICK;
2450		3543
2451	$WAIT_FOR_TICK->broadcast;	3544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3546	Coro::async_pool {
		3547	$Coro::current->{desc} = "runtime saver";
		3548	write_runtime
		3549	or warn "ERROR: unable to write runtime file: $!";
		3550	};
		3551	}
		3552
		3553	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3554	$sig->send;
		3555	}
		3556	while (my $sig = shift @WAIT_FOR_TICK) {
		3557	$sig->send;
		3558	}
		3559
		3560	$NOW = Event::time;
2453		3561
2454	# if we are delayed by four ticks or more, skip them all	3562	# if we are delayed by four ticks or more, skip them all
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3563	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2456		3564
2457	$TICK_WATCHER->at ($NEXT_TICK);	3565	$TICK_WATCHER->at ($NEXT_TICK);
2458	$TICK_WATCHER->start;	3566	$TICK_WATCHER->start;
		3567
		3568	$LOAD = ($NOW - $tick_start) / $TICK;
		3569	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3570
		3571	_post_tick;
2459	},	3572	},
2460	);	3573	);
2461		3574
		3575	{
		3576	BDB::min_parallel 8;
2462	IO::AIO::max_poll_time $TICK * 0.2;	3577	BDB::max_poll_time $TICK * 0.1;
2463		3578	$BDB_POLL_WATCHER = Event->io (
2464	Event->io (	3579	reentrant => 0,
2465	fd => IO::AIO::poll_fileno,	3580	fd => BDB::poll_fileno,
2466	poll => 'r',	3581	poll => 'r',
2467	prio => 5,	3582	prio => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471
2472	Event->timer (
2473	data => WF_AUTOCANCEL,	3583	data => WF_AUTOCANCEL,
		3584	cb => \&BDB::poll_cb,
		3585	);
		3586
		3587	BDB::set_sync_prepare {
		3588	my $status;
		3589	my $current = $Coro::current;
		3590	(
		3591	sub {
		3592	$status = $!;
		3593	$current->ready; undef $current;
		3594	},
		3595	sub {
		3596	Coro::schedule while defined $current;
		3597	$! = $status;
		3598	},
		3599	)
		3600	};
		3601
		3602	unless ($DB_ENV) {
		3603	$DB_ENV = BDB::db_env_create;
		3604	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3605	| BDB::LOG_AUTOREMOVE, 1);
		3606	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3607	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3608
		3609	cf::sync_job {
		3610	eval {
		3611	BDB::db_env_open
		3612	$DB_ENV,
		3613	$BDBDIR,
		3614	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3615	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3616	0666;
		3617
		3618	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3619	};
		3620
		3621	cf::cleanup "db_env_open(db): $@" if $@;
		3622	};
		3623	}
		3624
		3625	$BDB_DEADLOCK_WATCHER = Event->timer (
2474	after => 0,	3626	after => 3,
2475	interval => 10,	3627	interval => 1,
		3628	hard => 1,
		3629	prio => 0,
		3630	data => WF_AUTOCANCEL,
2476	cb => sub {	3631	cb => sub {
2477	(Coro::unblock_sub {	3632	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2478	write_runtime	3633	},
2479	or warn "ERROR: unable to write runtime file: $!";	3634	);
		3635	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3636	after => 11,
		3637	interval => 60,
		3638	hard => 1,
		3639	prio => 0,
		3640	data => WF_AUTOCANCEL,
		3641	cb => sub {
		3642	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3643	},
		3644	);
		3645	$BDB_TRICKLE_WATCHER = Event->timer (
		3646	after => 5,
		3647	interval => 10,
		3648	hard => 1,
		3649	prio => 0,
		3650	data => WF_AUTOCANCEL,
		3651	cb => sub {
		3652	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3653	},
		3654	);
		3655	}
		3656
		3657	{
		3658	IO::AIO::min_parallel 8;
		3659
		3660	undef $Coro::AIO::WATCHER;
		3661	IO::AIO::max_poll_time $TICK * 0.1;
		3662	$AIO_POLL_WATCHER = Event->io (
		3663	reentrant => 0,
		3664	data => WF_AUTOCANCEL,
		3665	fd => IO::AIO::poll_fileno,
		3666	poll => 'r',
		3667	prio => 0,
		3668	cb => \&IO::AIO::poll_cb,
		3669	);
		3670	}
		3671
		3672	my $_log_backtrace;
		3673
		3674	sub _log_backtrace {
		3675	my ($msg, @addr) = @_;
		3676
		3677	$msg =~ s/\n//;
		3678
		3679	# limit the # of concurrent backtraces
		3680	if ($_log_backtrace < 2) {
		3681	++$_log_backtrace;
		3682	async {
		3683	$Coro::current->{desc} = "abt $msg";
		3684
		3685	my @bt = fork_call {
		3686	@addr = map { sprintf "%x", $_ } @addr;
		3687	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3688	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3689	or die "addr2line: $!";
		3690
		3691	my @funcs;
		3692	my @res = <$fh>;
		3693	chomp for @res;
		3694	while (@res) {
		3695	my ($func, $line) = splice @res, 0, 2, ();
		3696	push @funcs, "[$func] $line";
		3697	}
		3698
		3699	@funcs
		3700	};
		3701
		3702	LOG llevInfo, "[ABT] $msg\n";
		3703	LOG llevInfo, "[ABT] $_\n" for @bt;
		3704	--$_log_backtrace;
2480	})->();	3705	};
		3706	} else {
		3707	LOG llevInfo, "[ABT] $msg\n";
		3708	LOG llevInfo, "[ABT] [suppressed]\n";
2481	},	3709	}
2482	);	3710	}
		3711
		3712	# load additional modules
		3713	use cf::pod;
2483		3714
2484	END { cf::emergency_save }	3715	END { cf::emergency_save }
2485		3716
2486	1	3717	1
2487		3718

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