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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 1.385 by root, Fri Oct 12 19:13:26 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) {
309	Coro::cede or Event::one_event;	449	Coro::cede or Event::one_event;
310	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
311		458
312	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
313	} else {	460	} else {
314	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
315		462
…		…
335	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
336		483
337	$coro	484	$coro
338	}	485	}
339		486
340	sub write_runtime {	487	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		488
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
344	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
345		493
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		495
350	aio_fsync $fh	496	sub fork_call(&@) {
351	and return;	497	my ($cb, @args) = @_;
352		498
353	close $fh	499	# we seemingly have to make a local copy of the whole thing,
354	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
355		502
356	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
357	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
358		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
359	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
360	}	647	}
361		648
362	=back	649	=back
363		650
364	=cut	651	=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		652
493	#############################################################################	653	#############################################################################
494		654
495	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
496		656
…		…
498	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
499	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
500		660
501	In the following description, CLASS can be any of C<global>, C<object>	661	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	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
503	crossfire+).	663	Crossfire TRT).
504		664
505	=over 4	665	=over 4
506		666
507	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
508		668
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	783	our @CB_MAP = ();
624		784
625	my %attachment;	785	my %attachment;
626		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
627	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
629		795
630	use sort 'stable';	796	use sort 'stable';
631		797
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
666		832
667	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		837
672	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	839	my $pkg = shift @arg;
674		840
675	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
705	}	871	}
706		872
707	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
708	} else {	874	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	876	}
711		877
712	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
713	}	879	}
714		880
…		…
716	if (ref $_[0]) {	882	if (ref $_[0]) {
717	_object_attach @_;	883	_object_attach @_;
718	} else {	884	} else {
719	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
720	}	886	}
		887	_recalc_want;
721	};	888	};
722		889
723	# all those should be optimised	890	# all those should be optimised
724	sub cf::attachable::detach {	891	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
729	reattach ($obj);	896	reattach ($obj);
730	} else {	897	} else {
731	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
732	}	899	}
		900	_recalc_want;
733	};	901	};
734		902
735	sub cf::attachable::attached {	903	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
737		905
…		…
752	";	920	";
753	die if $@;	921	die if $@;
754	}	922	}
755		923
756	our $override;	924	our $override;
757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
758		926
759	sub override {	927	sub override {
760	$override = 1;	928	$override = 1;
761	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
762	}	930	}
763		931
764	sub do_invoke {	932	sub do_invoke {
765	my $event = shift;	933	my $event = shift;
766	my $callbacks = shift;	934	my $callbacks = shift;
767		935
768	@invoke_results = ();	936	@INVOKE_RESULTS = ();
769		937
770	local $override;	938	local $override;
771		939
772	for (@$callbacks) {	940	for (@$callbacks) {
773	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
790		958
791	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
792		960
793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	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	962	removed in future versions), and there is no public API to access override
795	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		964
797	=back	965	=back
798		966
799	=cut	967	=cut
800		968
801	#############################################################################	969	#############################################################################
802	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	return 1;#d#
		977
		978	#todo#d# kill yourself and do some recursive checking manually without storable
		979	sync_job {
		980	my $guard = Coro::Storable::guard;
		981	local $Storable::canonical = 1;
		982	my $fob1 = Storable::freeze $ob1;
		983	my $fob2 = Storable::freeze $ob2;
		984	$fob1 eq $fob2
		985	}
		986	}
803		987
804	sub reattach {	988	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	989	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	990	my ($obj) = @_;
		991
		992	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		993
808	my $registry = $obj->registry;	994	my $registry = $obj->registry;
809		995
810	@$registry = ();	996	@$registry = ();
811		997
…		…
852	sub object_freezer_save {	1038	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1039	my ($filename, $rdata, $objs) = @_;
854		1040
855	sync_job {	1041	sync_job {
856	if (length $$rdata) {	1042	if (length $$rdata) {
		1043	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1044	warn sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1045	$decname, length $$rdata, scalar @$objs;
859		1046
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1049	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	1051	close $fh;
865		1052
866	if (@$objs) {	1053	if (@$objs) {
867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1054	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
868	chmod SAVE_MODE, $fh;	1055	chmod SAVE_MODE, $fh;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1056	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1057	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	1058	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	1059	close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1060	aio_rename "$filename.pst~", "$filename.pst";
874	}	1061	}
875	} else {	1062	} else {
876	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
…		…
882	}	1069	}
883	} else {	1070	} else {
884	aio_unlink $filename;	1071	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1072	aio_unlink "$filename.pst";
886	}	1073	}
887	}	1074	};
888	}	1075	}
889		1076
890	sub object_freezer_as_string {	1077	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1078	my ($rdata, $objs) = @_;
892		1079
…		…
904	or return;	1091	or return;
905		1092
906	unless (aio_stat "$filename.pst") {	1093	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1094	(aio_load "$filename.pst", $av) >= 0
908	or return;	1095	or return;
909	$av = eval { (Storable::thaw $av)->{objs} };
910	}
911		1096
		1097	my $st = eval { Coro::Storable::thaw $av }
		1098	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1099	$av = $st->{objs};
		1100	}
		1101
		1102	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1103	warn sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1104	$decname, length $data, scalar @{$av || []};
		1105
914	return ($data, $av);	1106	($data, $av)
915	}	1107	}
		1108
		1109	=head2 COMMAND CALLBACKS
		1110
		1111	=over 4
		1112
		1113	=cut
916		1114
917	#############################################################################	1115	#############################################################################
918	# command handling &c	1116	# command handling &c
919		1117
920	=item cf::register_command $name => \&callback($ob,$args);	1118	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1131	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1132	}
935		1133
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1134	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1135
938	Register a callbackf ro execution when the client sends an extcmd packet.	1136	Register a callback for execution when the client sends an (synchronous)
		1137	extcmd packet. Ext commands will be processed in the order they are
		1138	received by the server, like other user commands. The first argument is
		1139	the logged-in player. Ext commands can only be processed after a player
		1140	has logged in successfully.
939		1141
940	If the callback returns something, it is sent back as if reply was being	1142	If the callback returns something, it is sent back as if reply was being
941	called.	1143	called.
942		1144
		1145	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1146
		1147	Register a callback for execution when the client sends an (asynchronous)
		1148	exticmd packet. Exti commands are processed by the server as soon as they
		1149	are received, i.e. out of order w.r.t. other commands. The first argument
		1150	is a client socket. Exti commands can be received anytime, even before
		1151	log-in.
		1152
		1153	If the callback returns something, it is sent back as if reply was being
		1154	called.
		1155
943	=cut	1156	=cut
944		1157
945	sub register_extcmd {	1158	sub register_extcmd {
946	my ($name, $cb) = @_;	1159	my ($name, $cb) = @_;
947		1160
948	$EXTCMD{$name} = $cb;	1161	$EXTCMD{$name} = $cb;
		1162	}
		1163
		1164	sub register_exticmd {
		1165	my ($name, $cb) = @_;
		1166
		1167	$EXTICMD{$name} = $cb;
949	}	1168	}
950		1169
951	cf::player->attach (	1170	cf::player->attach (
952	on_command => sub {	1171	on_command => sub {
953	my ($pl, $name, $params) = @_;	1172	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1181	cf::override;
963	},	1182	},
964	on_extcmd => sub {	1183	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1184	my ($pl, $buf) = @_;
966		1185
967	my $msg = eval { from_json $buf };	1186	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1187
969	if (ref $msg) {	1188	if (ref $msg) {
		1189	my ($type, $reply, @payload) =
		1190	"ARRAY" eq ref $msg
		1191	? @$msg
		1192	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1193
		1194	my @reply;
		1195
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1196	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1197	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1198	}
		1199
		1200	$pl->ext_reply ($reply, @reply)
		1201	if $reply;
		1202
975	} else {	1203	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1204	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1205	}
978		1206
979	cf::override;	1207	cf::override;
980	},	1208	},
981	);	1209	);
982		1210
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 {	1211	sub load_extensions {
		1212	cf::sync_job {
		1213	my %todo;
		1214
1011	for my $ext (<$LIBDIR/*.ext>) {	1215	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1216	next unless -r $path;
1013	eval {	1217
1014	load_extension $ext;	1218	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1219	my $base = $1;
		1220	my $pkg = $1;
		1221	$pkg =~ s/[^[:word:]]/_/g;
		1222	$pkg = "ext::$pkg";
		1223
		1224	open my $fh, "<:utf8", $path
		1225	or die "$path: $!";
		1226
		1227	my $source = do { local $/; <$fh> };
		1228
		1229	my %ext = (
		1230	path => $path,
		1231	base => $base,
		1232	pkg => $pkg,
		1233	);
		1234
		1235	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1236	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1237
		1238	$ext{source} =
		1239	"package $pkg; use strict; use utf8;\n"
		1240	. "#line 1 \"$path\"\n{\n"
		1241	. $source
		1242	. "\n};\n1";
		1243
		1244	$todo{$base} = \%ext;
		1245	}
		1246
		1247	my %done;
		1248	while (%todo) {
		1249	my $progress;
		1250
		1251	while (my ($k, $v) = each %todo) {
		1252	for (split /,\s*/, $v->{meta}{depends}) {
		1253	goto skip
		1254	unless exists $done{$_};
		1255	}
		1256
		1257	warn "... loading '$k' into '$v->{pkg}'\n";
		1258
		1259	unless (eval $v->{source}) {
		1260	my $msg = $@ ? "$v->{path}: $@\n"
		1261	: "$v->{base}: extension inactive.\n";
		1262
		1263	if (exists $v->{meta}{mandatory}) {
		1264	warn $msg;
		1265	warn "mandatory extension failed to load, exiting.\n";
		1266	exit 1;
		1267	}
		1268
		1269	warn $msg;
		1270	}
		1271
		1272	$done{$k} = delete $todo{$k};
		1273	push @EXTS, $v->{pkg};
		1274	$progress = 1;
1015	1	1275	}
1016	} or warn "$ext not loaded: $@";	1276
		1277	skip:
		1278	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1279	unless $progress;
		1280	}
1017	}	1281	};
1018	}	1282	}
1019		1283
1020	#############################################################################	1284	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1285
1023	*cf::mapsupport::on_clean = sub {	1286	=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		1287
1036	=head2 CORE EXTENSIONS	1288	=head2 CORE EXTENSIONS
1037		1289
1038	Functions and methods that extend core crossfire objects.	1290	Functions and methods that extend core crossfire objects.
1039		1291
…		…
1045		1297
1046	=head3 cf::player	1298	=head3 cf::player
1047		1299
1048	=over 4	1300	=over 4
1049		1301
		1302	=item cf::player::num_playing
		1303
		1304	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1305
		1306	=cut
		1307
		1308	sub num_playing {
		1309	scalar grep
		1310	$_->ob->map
		1311	&& !$_->hidden
		1312	&& !$_->ob->flag (cf::FLAG_WIZ),
		1313	cf::player::list
		1314	}
		1315
1050	=item cf::player::find $login	1316	=item cf::player::find $login
1051		1317
1052	Returns the given player object, loading it if necessary (might block).	1318	Returns the given player object, loading it if necessary (might block).
1053		1319
1054	=cut	1320	=cut
1055		1321
1056	sub playerdir($) {	1322	sub playerdir($) {
1057	cf::localdir	1323	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1324	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1325	}
1063		1326
1064	sub path($) {	1327	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1328	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1329
1067	(playerdir $login) . "/$login.pl"	1330	(playerdir $login) . "/playerdata"
1068	}	1331	}
1069		1332
1070	sub find_active($) {	1333	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1334	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1335	and $cf::PLAYER{$_[0]}->active
…		…
1075		1338
1076	sub exists($) {	1339	sub exists($) {
1077	my ($login) = @_;	1340	my ($login) = @_;
1078		1341
1079	$cf::PLAYER{$login}	1342	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1343	or cf::sync_job { !aio_stat path $login }
1081	}	1344	}
1082		1345
1083	sub find($) {	1346	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1347	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1348	my $login = $_[0];
1086		1349
1087	my $guard = cf::lock_acquire "user_find:$login";	1350	my $guard = cf::lock_acquire "user_find:$login";
1088		1351
1089	$cf::PLAYER{$_[0]} || do {	1352	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1353	# rename old playerfiles to new ones
		1354	#TODO: remove when no longer required
		1355	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1356	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1357	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1358	aio_unlink +(playerdir $login) . "/$login.pl";
		1359
		1360	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1361	or return;
		1362
		1363	my $pl = cf::player::load_pl $f
		1364	or return;
		1365	local $cf::PLAYER_LOADING{$login} = $pl;
		1366	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1367	$cf::PLAYER{$login} = $pl
1093	}	1368	}
1094	}	1369	}
1095	}	1370	}
1096		1371
…		…
1106		1381
1107	aio_mkdir playerdir $pl, 0770;	1382	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1383	$pl->{last_save} = $cf::RUNTIME;
1109		1384
1110	$pl->save_pl ($path);	1385	$pl->save_pl ($path);
1111	Coro::cede;	1386	cf::cede_to_tick;
1112	}	1387	}
1113		1388
1114	sub new($) {	1389	sub new($) {
1115	my ($login) = @_;	1390	my ($login) = @_;
1116		1391
…		…
1122	$cf::PLAYER{$login} = $self;	1397	$cf::PLAYER{$login} = $self;
1123		1398
1124	$self	1399	$self
1125	}	1400	}
1126		1401
		1402	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1403
		1404	=cut
		1405
		1406	sub send_msg {
		1407	my $ns = shift->ns
		1408	or return;
		1409	$ns->send_msg (@_);
		1410	}
		1411
1127	=item $pl->quit_character	1412	=item $pl->quit_character
1128		1413
1129	Nukes the player without looking back. If logged in, the connection will	1414	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1415	be destroyed. May block for a long time.
1131		1416
1132	=cut	1417	=cut
1133		1418
1134	sub quit_character {	1419	sub quit_character {
1135	my ($pl) = @_;	1420	my ($pl) = @_;
		1421
		1422	my $name = $pl->ob->name;
1136		1423
1137	$pl->{deny_save} = 1;	1424	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1425	$pl->password ("*"); # this should lock out the player until we nuked the dir
1139		1426
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1427	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1432	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1433	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1434	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1435	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1436	$pl->destroy;
		1437
		1438	my $prefix = qr<^~\Q$name\E/>;
		1439
		1440	# nuke player maps
		1441	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1442
1150	IO::AIO::aio_rmtree $temp;	1443	IO::AIO::aio_rmtree $temp;
		1444	}
		1445
		1446	=item $pl->kick
		1447
		1448	Kicks a player out of the game. This destroys the connection.
		1449
		1450	=cut
		1451
		1452	sub kick {
		1453	my ($pl, $kicker) = @_;
		1454
		1455	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1456	$pl->killer ("kicked");
		1457	$pl->ns->destroy;
1151	}	1458	}
1152		1459
1153	=item cf::player::list_logins	1460	=item cf::player::list_logins
1154		1461
1155	Returns am arrayref of all valid playernames in the system, can take a	1462	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1463	while and may block, so not sync_job-capable, ever.
1157		1464
1158	=cut	1465	=cut
1159		1466
1160	sub list_logins {	1467	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1468	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1469	or return [];
1163		1470
1164	my @logins;	1471	my @logins;
1165		1472
1166	for my $login (@$dirs) {	1473	for my $login (@$dirs) {
		1474	my $path = path $login;
		1475
		1476	# a .pst is a dead give-away for a valid player
		1477	unless (-e "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1478	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1479	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1480	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1481	}
1170		1482
1171	utf8::decode $login;	1483	utf8::decode $login;
1172	push @logins, $login;	1484	push @logins, $login;
1173	}	1485	}
1174		1486
1175	\@logins	1487	\@logins
1176	}	1488	}
1177		1489
1178	=item $player->maps	1490	=item $player->maps
1179		1491
1180	Returns an arrayref of cf::path's of all maps that are private for this	1492	Returns an arrayref of map paths that are private for this
1181	player. May block.	1493	player. May block.
1182		1494
1183	=cut	1495	=cut
1184		1496
1185	sub maps($) {	1497	sub maps($) {
1186	my ($pl) = @_;	1498	my ($pl) = @_;
		1499
		1500	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1501
1188	my $files = aio_readdir playerdir $pl	1502	my $files = aio_readdir playerdir $pl
1189	or return;	1503	or return;
1190		1504
1191	my @paths;	1505	my @paths;
…		…
1193	for (@$files) {	1507	for (@$files) {
1194	utf8::decode $_;	1508	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1509	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1510	next unless /^$PATH_SEP/o;
1197		1511
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1512	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1513	}
1200		1514
1201	\@paths	1515	\@paths
1202	}	1516	}
1203		1517
		1518	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1519
		1520	Expand crossfire pod fragments into protocol xml.
		1521
		1522	=cut
		1523
		1524	sub expand_cfpod {
		1525	((my $self), (local $_)) = @_;
		1526
		1527	# escape & and <
		1528	s/&/&amp;/g;
		1529	s/(?<![BIUGHT])</&lt;/g;
		1530
		1531	# this is buggy, it needs to properly take care of nested <'s
		1532
		1533	1 while
		1534	# replace B<>, I<>, U<> etc.
		1535	s/B<([^\>]*)>/<b>$1<\/b>/
		1536	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1537	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1538	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1539	# replace G<male|female> tags
		1540	|| s{G<([^>|]*)\|([^>]*)>}{
		1541	$self->gender ? $2 : $1
		1542	}ge
		1543	# replace H<hint text>
		1544	|| s{H<([^\>]*)>}
		1545	{
		1546	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1547	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1548	"")
		1549	[$self->{hintmode}]
		1550	}ge;
		1551
		1552	# create single paragraphs (very hackish)
		1553	s/(?<=\S)\n(?=\w)/ /g;
		1554
		1555	# compress some whitespace
		1556	s/\s+\n/\n/g; # ws line-ends
		1557	s/\n\n+/\n/g; # double lines
		1558	s/^\n+//; # beginning lines
		1559	s/\n+$//; # ending lines
		1560
		1561	$_
		1562	}
		1563
		1564	sub hintmode {
		1565	$_[0]{hintmode} = $_[1] if @_ > 1;
		1566	$_[0]{hintmode}
		1567	}
		1568
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1569	=item $player->ext_reply ($msgid, @msg)
1205		1570
1206	Sends an ext reply to the player.	1571	Sends an ext reply to the player.
1207		1572
1208	=cut	1573	=cut
1209		1574
1210	sub ext_reply($$$%) {	1575	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1576	my ($self, $id, @msg) = @_;
1212		1577
1213	$msg{msgid} = $id;	1578	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1579	}
1217		1580
1218	package cf;	1581	=item $player->ext_msg ($type, @msg)
		1582
		1583	Sends an ext event to the client.
		1584
		1585	=cut
		1586
		1587	sub ext_msg($$@) {
		1588	my ($self, $type, @msg) = @_;
		1589
		1590	$self->ns->ext_msg ($type, @msg);
		1591	}
		1592
		1593	=head3 cf::region
		1594
		1595	=over 4
		1596
		1597	=cut
		1598
		1599	package cf::region;
		1600
		1601	=item cf::region::find_by_path $path
		1602
		1603	Tries to decuce the likely region for a map knowing only its path.
		1604
		1605	=cut
		1606
		1607	sub find_by_path($) {
		1608	my ($path) = @_;
		1609
		1610	my ($match, $specificity);
		1611
		1612	for my $region (list) {
		1613	if ($region->{match} && $path =~ $region->{match}) {
		1614	($match, $specificity) = ($region, $region->specificity)
		1615	if $region->specificity > $specificity;
		1616	}
		1617	}
		1618
		1619	$match
		1620	}
1219		1621
1220	=back	1622	=back
1221
1222		1623
1223	=head3 cf::map	1624	=head3 cf::map
1224		1625
1225	=over 4	1626	=over 4
1226		1627
…		…
1229	package cf::map;	1630	package cf::map;
1230		1631
1231	use Fcntl;	1632	use Fcntl;
1232	use Coro::AIO;	1633	use Coro::AIO;
1233		1634
		1635	use overload
		1636	'""' => \&as_string,
		1637	fallback => 1;
		1638
1234	our $MAX_RESET = 3600;	1639	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1640	our $DEFAULT_RESET = 3000;
1236		1641
1237	sub generate_random_map {	1642	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1643	my ($self, $rmp) = @_;
1239
1240	# mit "rum" bekleckern, nicht	1644	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1645	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1646	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1647	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1648	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1649	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1650	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1651	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1652	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1653	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1654	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1655	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1656	(cf::region::find $rmp->{region}), $rmp->{custom}
		1657	)
		1658	}
		1659
		1660	=item cf::map->register ($regex, $prio)
		1661
		1662	Register a handler for the map path matching the given regex at the
		1663	givne priority (higher is better, built-in handlers have priority 0, the
		1664	default).
		1665
		1666	=cut
		1667
		1668	sub register {
		1669	my (undef, $regex, $prio) = @_;
		1670	my $pkg = caller;
		1671
		1672	no strict;
		1673	push @{"$pkg\::ISA"}, __PACKAGE__;
		1674
		1675	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1676	}
		1677
		1678	# also paths starting with '/'
		1679	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1680
		1681	sub thawer_merge {
		1682	my ($self, $merge) = @_;
		1683
		1684	# we have to keep some variables in memory intact
		1685	local $self->{path};
		1686	local $self->{load_path};
		1687
		1688	$self->SUPER::thawer_merge ($merge);
		1689	}
		1690
		1691	sub normalise {
		1692	my ($path, $base) = @_;
		1693
		1694	$path = "$path"; # make sure its a string
		1695
		1696	$path =~ s/\.map$//;
		1697
		1698	# map plan:
		1699	#
		1700	# /! non-realised random map exit (special hack!)
		1701	# {... are special paths that are not being touched
		1702	# ?xxx/... are special absolute paths
		1703	# ?random/... random maps
		1704	# /... normal maps
		1705	# ~user/... per-player map of a specific user
		1706
		1707	$path =~ s/$PATH_SEP/\//go;
		1708
		1709	# treat it as relative path if it starts with
		1710	# something that looks reasonable
		1711	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1712	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1713
		1714	$base =~ s{[^/]+/?$}{};
		1715	$path = "$base/$path";
		1716	}
		1717
		1718	for ($path) {
		1719	redo if s{//}{/};
		1720	redo if s{/\.?/}{/};
		1721	redo if s{/[^/]+/\.\./}{/};
		1722	}
		1723
		1724	$path
		1725	}
		1726
		1727	sub new_from_path {
		1728	my (undef, $path, $base) = @_;
		1729
		1730	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1731
		1732	$path = normalise $path, $base;
		1733
		1734	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1735	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1736	my $self = bless cf::map::new, $pkg;
		1737	$self->{path} = $path; $self->path ($path);
		1738	$self->init; # pass $1 etc.
		1739	return $self;
		1740	}
		1741	}
		1742
		1743	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1744	()
		1745	}
		1746
		1747	sub init {
		1748	my ($self) = @_;
		1749
		1750	$self
		1751	}
		1752
		1753	sub as_string {
		1754	my ($self) = @_;
		1755
		1756	"$self->{path}"
		1757	}
		1758
		1759	# the displayed name, this is a one way mapping
		1760	sub visible_name {
		1761	&as_string
		1762	}
		1763
		1764	# the original (read-only) location
		1765	sub load_path {
		1766	my ($self) = @_;
		1767
		1768	"$MAPDIR/$self->{path}.map"
		1769	}
		1770
		1771	# the temporary/swap location
		1772	sub save_path {
		1773	my ($self) = @_;
		1774
		1775	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1776	"$TMPDIR/$path.map"
		1777	}
		1778
		1779	# the unique path, undef == no special unique path
		1780	sub uniq_path {
		1781	my ($self) = @_;
		1782
		1783	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1784	"$UNIQUEDIR/$path"
1254	}	1785	}
1255		1786
1256	# and all this just because we cannot iterate over	1787	# and all this just because we cannot iterate over
1257	# all maps in C++...	1788	# all maps in C++...
1258	sub change_all_map_light {	1789	sub change_all_map_light {
…		…
1260		1791
1261	$_->change_map_light ($change)	1792	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1793	for grep $_->outdoor, values %cf::MAP;
1263	}	1794	}
1264		1795
		1796	sub decay_objects {
		1797	my ($self) = @_;
		1798
		1799	return if $self->{deny_reset};
		1800
		1801	$self->do_decay_objects;
		1802	}
		1803
		1804	sub unlink_save {
		1805	my ($self) = @_;
		1806
		1807	utf8::encode (my $save = $self->save_path);
		1808	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1809	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1810	}
		1811
1265	sub try_load_header($) {	1812	sub load_header_from($) {
1266	my ($path) = @_;	1813	my ($self, $path) = @_;
1267		1814
1268	utf8::encode $path;	1815	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1816	my $f = new_from_file cf::object::thawer $path
1270	or return;	1817	or return;
1271		1818
1272	my $map = cf::map::new	1819	$self->_load_header ($f)
1273	or return;	1820	or return;
1274		1821
1275	# for better error messages only, will be overwritten	1822	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	1823	$f->resolve_delayed_derefs;
1277		1824
1278	$map->load_header ($path)	1825	$self->{load_path} = $path;
		1826
		1827	1
		1828	}
		1829
		1830	sub load_header_orig {
		1831	my ($self) = @_;
		1832
		1833	$self->load_header_from ($self->load_path)
		1834	}
		1835
		1836	sub load_header_temp {
		1837	my ($self) = @_;
		1838
		1839	$self->load_header_from ($self->save_path)
		1840	}
		1841
		1842	sub prepare_temp {
		1843	my ($self) = @_;
		1844
		1845	$self->last_access ((delete $self->{last_access})
		1846	|| $cf::RUNTIME); #d#
		1847	# safety
		1848	$self->{instantiate_time} = $cf::RUNTIME
		1849	if $self->{instantiate_time} > $cf::RUNTIME;
		1850	}
		1851
		1852	sub prepare_orig {
		1853	my ($self) = @_;
		1854
		1855	$self->{load_original} = 1;
		1856	$self->{instantiate_time} = $cf::RUNTIME;
		1857	$self->last_access ($cf::RUNTIME);
		1858	$self->instantiate;
		1859	}
		1860
		1861	sub load_header {
		1862	my ($self) = @_;
		1863
		1864	if ($self->load_header_temp) {
		1865	$self->prepare_temp;
		1866	} else {
		1867	$self->load_header_orig
1279	or return;	1868	or return;
		1869	$self->prepare_orig;
		1870	}
1280		1871
1281	$map->{load_path} = $path;	1872	$self->{deny_reset} = 1
		1873	if $self->no_reset;
1282		1874
1283	$map	1875	$self->default_region (cf::region::find_by_path $self->{path})
		1876	unless $self->default_region;
		1877
		1878	1
1284	}	1879	}
1285		1880
1286	sub find;	1881	sub find;
1287	sub find {	1882	sub find {
1288	my ($path, $origin) = @_;	1883	my ($path, $origin) = @_;
1289		1884
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1885	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1886
		1887	cf::lock_wait "map_data:$path";#d#remove
1295	cf::lock_wait "map_find:$key";	1888	cf::lock_wait "map_find:$path";
1296		1889
1297	$cf::MAP{$key} || do {	1890	$cf::MAP{$path} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	1891	my $guard1 = cf::lock_acquire "map_find:$path";
		1892	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1299		1893
1300	# do it the slow way	1894	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;	1895	or return;
1319		1896
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;	1897	$map->{last_save} = $cf::RUNTIME;
1332		1898
1333	Coro::cede;	1899	$map->load_header
		1900	or return;
1334		1901
1335	if ($map->should_reset) {	1902	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1903	# doing this can freeze the server in a sync job, obviously
		1904	#$cf::WAIT_FOR_TICK->wait;
		1905	undef $guard1;
		1906	undef $guard2;
1336	$map->reset;	1907	$map->reset;
1337	undef $guard;
1338	$map = find $path	1908	return find $path;
1339	or return;
1340	}	1909	}
1341		1910
1342	$cf::MAP{$key} = $map	1911	$cf::MAP{$path} = $map
1343	}	1912	}
1344	}	1913	}
		1914
		1915	sub pre_load { }
		1916	sub post_load { }
1345		1917
1346	sub load {	1918	sub load {
1347	my ($self) = @_;	1919	my ($self) = @_;
1348		1920
		1921	local $self->{deny_reset} = 1; # loading can take a long time
		1922
1349	my $path = $self->{path};	1923	my $path = $self->{path};
		1924
		1925	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1926	my $guard = cf::lock_acquire "map_data:$path";
1351		1927
		1928	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	1929	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		1930
1354	$self->in_memory (cf::MAP_LOADING);	1931	$self->in_memory (cf::MAP_LOADING);
1355		1932
1356	$self->alloc;	1933	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	1934
		1935	$self->pre_load;
		1936	cf::cede_to_tick;
		1937
		1938	my $f = new_from_file cf::object::thawer $self->{load_path};
		1939	$f->skip_block;
		1940	$self->_load_objects ($f)
1358	or return;	1941	or return;
1359		1942
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1943	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	1944	if delete $self->{load_original};
1362		1945
1363	if (my $uniq = $path->uniq_path) {	1946	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	1947	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	1948	unless (aio_stat $uniq) {
		1949	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	1950	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	1951	$self->_load_objects ($f);
		1952	$f->resolve_delayed_derefs;
		1953	}
1368	}	1954	}
1369	}	1955	}
1370		1956
1371	Coro::cede;	1957	$f->resolve_delayed_derefs;
1372		1958
		1959	cf::cede_to_tick;
1373	# now do the right thing for maps	1960	# now do the right thing for maps
1374	$self->link_multipart_objects;	1961	$self->link_multipart_objects;
1375
1376	if ($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)	1962	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	1963	unless $self->difficulty;
		1964	cf::cede_to_tick;
		1965
		1966	unless ($self->{deny_activate}) {
		1967	$self->decay_objects;
		1968	$self->fix_auto_apply;
		1969	$self->update_buttons;
		1970	cf::cede_to_tick;
		1971	$self->set_darkness_map;
		1972	cf::cede_to_tick;
1386	$self->activate;	1973	$self->activate;
1387	}	1974	}
1388		1975
1389	Coro::cede;	1976	$self->{last_save} = $cf::RUNTIME;
		1977	$self->last_access ($cf::RUNTIME);
1390		1978
1391	$self->in_memory (cf::MAP_IN_MEMORY);	1979	$self->in_memory (cf::MAP_IN_MEMORY);
		1980	}
		1981
		1982	$self->post_load;
		1983	}
		1984
		1985	sub customise_for {
		1986	my ($self, $ob) = @_;
		1987
		1988	return find "~" . $ob->name . "/" . $self->{path}
		1989	if $self->per_player;
		1990
		1991	# return find "?party/" . $ob->name . "/" . $self->{path}
		1992	# if $self->per_party;
		1993
		1994	$self
1392	}	1995	}
1393		1996
1394	# find and load all maps in the 3x3 area around a map	1997	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	1998	sub load_neighbours {
1396	my ($map) = @_;	1999	my ($map) = @_;
1397		2000
1398	my @diag; # diagonal neighbours	2001	my @neigh; # diagonal neighbours
1399		2002
1400	for (0 .. 3) {	2003	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	2004	my $neigh = $map->tile_path ($_)
1402	or next;	2005	or next;
1403	$neigh = find $neigh, $map	2006	$neigh = find $neigh, $map
1404	or next;	2007	or next;
1405	$neigh->load;	2008	$neigh->load;
1406		2009
		2010	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2011	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2012	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2013	}
1410		2014
1411	for (@diag) {	2015	for (grep defined $_->[0], @neigh) {
		2016	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2017	my $neigh = find $path, $origin
1413	or next;	2018	or next;
1414	$neigh->load;	2019	$neigh->load;
1415	}	2020	}
1416	}	2021	}
1417		2022
…		…
1422	}	2027	}
1423		2028
1424	sub do_load_sync {	2029	sub do_load_sync {
1425	my ($map) = @_;	2030	my ($map) = @_;
1426		2031
		2032	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2033	if $Coro::current == $Coro::main;
		2034
1427	cf::sync_job { $map->load };	2035	cf::sync_job { $map->load };
1428	}	2036	}
1429		2037
1430	our %MAP_PREFETCH;	2038	our %MAP_PREFETCH;
		2039	our $MAP_PREFETCHER = undef;
		2040
		2041	sub find_async {
		2042	my ($path, $origin, $load) = @_;
		2043
		2044	$path = normalise $path, $origin && $origin->{path};
		2045
		2046	if (my $map = $cf::MAP{$path}) {
		2047	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2048	}
		2049
		2050	$MAP_PREFETCH{$path} |= $load;
		2051
1431	our $MAP_PREFETCHER = Coro::async {	2052	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2053	$Coro::current->{desc} = "map prefetcher";
		2054
1433	while (%MAP_PREFETCH) {	2055	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2056	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2057	if (my $map = find $k) {
		2058	$map->load if $v;
		2059	}
		2060
1436	my $path = delete $MAP_PREFETCH{$key};	2061	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2062	}
1442	Coro::schedule;	2063	}
		2064	undef $MAP_PREFETCHER;
1443	}	2065	};
1444	};
1445
1446	sub find_async {
1447	my ($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;	2066	$MAP_PREFETCHER->prio (6);
1458		2067
1459	()	2068	()
1460	}	2069	}
1461		2070
1462	sub save {	2071	sub save {
1463	my ($self) = @_;	2072	my ($self) = @_;
1464		2073
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2074	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2075
1467	$self->{last_save} = $cf::RUNTIME;	2076	$self->{last_save} = $cf::RUNTIME;
1468		2077
1469	return unless $self->dirty;	2078	return unless $self->dirty;
1470		2079
1471	my $save = $self->{path}->save_path; utf8::encode $save;	2080	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2081	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		2082
1474	$self->{load_path} = $save;	2083	$self->{load_path} = $save;
1475		2084
1476	return if $self->{deny_save};	2085	return if $self->{deny_save};
1477		2086
1478	local $self->{last_access} = $self->last_access;#d#	2087	local $self->{last_access} = $self->last_access;#d#
1479		2088
1480	cf::async {	2089	cf::async {
		2090	$Coro::current->{desc} = "map player save";
1481	$_->contr->save for $self->players;	2091	$_->contr->save for $self->players;
1482	};	2092	};
1483		2093
1484	if ($uniq) {	2094	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2095	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	2096	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	2097	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2098	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	2099	}
1490	}	2100	}
1491		2101
1492	sub swap_out {	2102	sub swap_out {
1493	my ($self) = @_;	2103	my ($self) = @_;
1494		2104
1495	# save first because save cedes	2105	# save first because save cedes
1496	$self->save;	2106	$self->save;
1497		2107
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2108	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2109
1500	return if $self->players;	2110	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;	2111	return if $self->in_memory != cf::MAP_IN_MEMORY;
1502	return if $self->{deny_save};	2112	return if $self->{deny_save};
1503		2113
		2114	$self->in_memory (cf::MAP_SWAPPED);
		2115
		2116	$self->deactivate;
		2117	$_->clear_links_to ($self) for values %cf::MAP;
1504	$self->clear;	2118	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2119	}
1507		2120
1508	sub reset_at {	2121	sub reset_at {
1509	my ($self) = @_;	2122	my ($self) = @_;
1510		2123
1511	# TODO: safety, remove and allow resettable per-player maps	2124	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2125	return 1e99 if $self->{deny_reset};
1514		2126
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2127	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2128	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2129
…		…
1522	my ($self) = @_;	2134	my ($self) = @_;
1523		2135
1524	$self->reset_at <= $cf::RUNTIME	2136	$self->reset_at <= $cf::RUNTIME
1525	}	2137	}
1526		2138
1527	sub unlink_save {
1528	my ($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	$self->save;
1546	}
1547
1548	sub reset {	2139	sub reset {
1549	my ($self) = @_;	2140	my ($self) = @_;
1550		2141
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2143
1553	return if $self->players;	2144	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2145
1556	warn "resetting map ", $self->path;#d#	2146	warn "resetting map ", $self->path;
		2147
		2148	$self->in_memory (cf::MAP_SWAPPED);
		2149
		2150	# need to save uniques path
		2151	unless ($self->{deny_save}) {
		2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2153
		2154	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2155	if $uniq;
		2156	}
1557		2157
1558	delete $cf::MAP{$self->path};	2158	delete $cf::MAP{$self->path};
1559		2159
		2160	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2161	$_->clear_links_to ($self) for values %cf::MAP;
		2162	$self->clear;
1561		2163
1562	$self->unlink_save;	2164	$self->unlink_save;
1563	$self->destroy;	2165	$self->destroy;
1564	}	2166	}
1565		2167
1566	my $nuke_counter = "aaaa";	2168	my $nuke_counter = "aaaa";
1567		2169
1568	sub nuke {	2170	sub nuke {
1569	my ($self) = @_;	2171	my ($self) = @_;
1570		2172
		2173	{
		2174	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2175
		2176	delete $cf::MAP{$self->path};
		2177
		2178	$self->unlink_save;
		2179
		2180	bless $self, "cf::map";
		2181	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2182	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2183	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2184	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2185
		2186	$cf::MAP{$self->path} = $self;
		2187	}
		2188
1574	$self->reset; # polite request, might not happen	2189	$self->reset; # polite request, might not happen
1575	}	2190	}
1576		2191
1577	sub customise_for {	2192	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2193
1580	if ($map->per_player) {	2194	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2195	maps. May block.
		2196
		2197	=cut
		2198
		2199	sub tmp_maps() {
1582	}	2200	[
		2201	map {
		2202	utf8::decode $_;
		2203	/\.map$/
		2204	? normalise $_
		2205	: ()
		2206	} @{ aio_readdir $TMPDIR or [] }
		2207	]
		2208	}
1583		2209
1584	$map	2210	=item $maps = cf::map::random_maps
		2211
		2212	Returns an arrayref with all map paths of currently instantiated and saved
		2213	random maps. May block.
		2214
		2215	=cut
		2216
		2217	sub random_maps() {
		2218	[
		2219	map {
		2220	utf8::decode $_;
		2221	/\.map$/
		2222	? normalise "?random/$_"
		2223	: ()
		2224	} @{ aio_readdir $RANDOMDIR or [] }
		2225	]
1585	}	2226	}
1586		2227
1587	=item cf::map::unique_maps	2228	=item cf::map::unique_maps
1588		2229
1589	Returns an arrayref of cf::path's of all shared maps that have	2230	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2231	instantiated unique items. May block.
1591		2232
1592	=cut	2233	=cut
1593		2234
1594	sub unique_maps() {	2235	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2236	[
1596	or return;	2237	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2238	utf8::decode $_;
1602	next if /\.pst$/;	2239	/\.map$/
1603	next unless /^$PATH_SEP/o;	2240	? normalise $_
1604		2241	: ()
1605	push @paths, new cf::path $_;	2242	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2243	]
1607
1608	\@paths
1609	}	2244	}
1610		2245
1611	package cf;	2246	package cf;
1612		2247
1613	=back	2248	=back
…		…
1631	map { $_, inv_recursive_ $_->inv } @_	2266	map { $_, inv_recursive_ $_->inv } @_
1632	}	2267	}
1633		2268
1634	sub inv_recursive {	2269	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2270	inv_recursive_ inv $_[0]
		2271	}
		2272
		2273	=item $ref = $ob->ref
		2274
		2275	creates and returns a persistent reference to an objetc that can be stored as a string.
		2276
		2277	=item $ob = cf::object::deref ($refstring)
		2278
		2279	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2280	even if the object actually exists. May block.
		2281
		2282	=cut
		2283
		2284	sub deref {
		2285	my ($ref) = @_;
		2286
		2287	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2288	my ($uuid, $name) = ($1, $2);
		2289	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2290	or return;
		2291	$pl->ob->uuid eq $uuid
		2292	or return;
		2293
		2294	$pl->ob
		2295	} else {
		2296	warn "$ref: cannot resolve object reference\n";
		2297	undef
		2298	}
1636	}	2299	}
1637		2300
1638	package cf;	2301	package cf;
1639		2302
1640	=back	2303	=back
…		…
1659		2322
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2323	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2324
1662	if ($self->{record_replies}) {	2325	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2326	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2327
1664	} else {	2328	} else {
		2329	my $pl = $self->contr;
		2330
		2331	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2332	my $dialog = $pl->{npc_dialog};
		2333	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2334
		2335	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2336	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2337	$self->message ($msg, $flags);
		2338	}
1667	}	2339	}
		2340	}
		2341
		2342	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2343
		2344	=cut
		2345
		2346	sub cf::object::send_msg {
		2347	my $pl = shift->contr
		2348	or return;
		2349	$pl->send_msg (@_);
1668	}	2350	}
1669		2351
1670	=item $player_object->may ("access")	2352	=item $player_object->may ("access")
1671		2353
1672	Returns wether the given player is authorized to access resource "access"	2354	Returns wether the given player is authorized to access resource "access"
…		…
1685		2367
1686	=item $player_object->enter_link	2368	=item $player_object->enter_link
1687		2369
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2370	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2371
1690	The player should be reaosnably safe there for short amounts of time. You	2372	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.	2373	I<MUST> call C<leave_link> as soon as possible, though.
1692		2374
		2375	Will never block.
		2376
1693	=item $player_object->leave_link ($map, $x, $y)	2377	=item $player_object->leave_link ($map, $x, $y)
1694		2378
1695	Moves the player out of the specila link map onto the given map. If the	2379	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2380	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2381	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2382	fails, to the emergency map position.
1699		2383
1700	Might block.	2384	Might block.
1701		2385
1702	=cut	2386	=cut
		2387
		2388	sub link_map {
		2389	unless ($LINK_MAP) {
		2390	$LINK_MAP = cf::map::find "{link}"
		2391	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2392	$LINK_MAP->load;
		2393	}
		2394
		2395	$LINK_MAP
		2396	}
1703		2397
1704	sub cf::object::player::enter_link {	2398	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2399	my ($self) = @_;
1706		2400
1707	$self->deactivate_recursive;	2401	$self->deactivate_recursive;
1708		2402
1709	return if $self->map == $LINK_MAP;	2403	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2404
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2405	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2406	if $self->map && $self->map->{path} ne "{link}";
1713		2407
1714	$self->enter_map ($LINK_MAP, 20, 20);	2408	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2409	}
1716		2410
1717	sub cf::object::player::leave_link {	2411	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2412	my ($self, $map, $x, $y) = @_;
		2413
		2414	return unless $self->contr->active;
1719		2415
1720	my $link_pos = delete $self->{_link_pos};	2416	my $link_pos = delete $self->{_link_pos};
1721		2417
1722	unless ($map) {	2418	unless ($map) {
1723	# restore original map position	2419	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2433	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2434	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2435	if $x <=0 && $y <= 0;
1740		2436
1741	$map->load;	2437	$map->load;
1742	$map->load_diag;	2438	$map->load_neighbours;
1743		2439
1744	return unless $self->contr->active;	2440	return unless $self->contr->active;
1745	$self->activate_recursive;	2441	$self->activate_recursive;
		2442
		2443	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2444	$self->enter_map ($map, $x, $y);
1747	}	2445	}
1748		2446
1749	cf::player->attach (	2447	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2448
1753	# abort map switching before logout	2449	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2450	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2451	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2452	the new (success) or old (failed) map position. In either case, $done will
1757	};	2453	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2454
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	2455	=cut
		2456
		2457	our $GOTOGEN;
1784		2458
1785	sub cf::object::player::goto {	2459	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2460	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2461
1788	$path = new cf::path $path;	2462	# do generation counting so two concurrent goto's will be executed in-order
		2463	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2464
1790	$self->enter_link;	2465	$self->enter_link;
1791		2466
1792	(async {	2467	(async {
1793	my $map = cf::map::find $path->as_string;	2468	$Coro::current->{desc} = "player::goto $path $x $y";
		2469
		2470	# *tag paths override both path and x|y
		2471	if ($path =~ /^\*(.*)$/) {
		2472	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2473	my $ob = $obs[rand @obs];
		2474
		2475	# see if we actually can go there
		2476	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2477	$ob = $obs[rand @obs];
		2478	} else {
		2479	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2480	}
		2481	# else put us there anyways for now #d#
		2482
		2483	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2484	} else {
		2485	($path, $x, $y) = (undef, undef, undef);
		2486	}
		2487	}
		2488
		2489	my $map = eval {
		2490	my $map = defined $path ? cf::map::find $path : undef;
		2491
		2492	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2493	$map = $map->customise_for ($self);
1795		2494	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2495	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2496	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	}
1800		2498
		2499	$map
		2500	};
		2501
		2502	if ($@) {
		2503	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2504	LOG llevError | logBacktrace, Carp::longmess $@;
		2505	}
		2506
		2507	if ($gen == $self->{_goto_generation}) {
		2508	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2509	$self->leave_link ($map, $x, $y);
		2510	}
		2511
		2512	$done->() if $done;
1802	})->prio (1);	2513	})->prio (1);
1803	}	2514	}
1804		2515
1805	=item $player_object->enter_exit ($exit_object)	2516	=item $player_object->enter_exit ($exit_object)
1806		2517
…		…
1808		2519
1809	sub parse_random_map_params {	2520	sub parse_random_map_params {
1810	my ($spec) = @_;	2521	my ($spec) = @_;
1811		2522
1812	my $rmp = { # defaults	2523	my $rmp = { # defaults
1813	xsize => 10,	2524	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2525	ysize => (cf::rndm 15, 40),
		2526	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2527	#layout => string,
1815	};	2528	};
1816		2529
1817	for (split /\n/, $spec) {	2530	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2531	my ($k, $v) = split /\s+/, $_, 2;
1819		2532
…		…
1823	$rmp	2536	$rmp
1824	}	2537	}
1825		2538
1826	sub prepare_random_map {	2539	sub prepare_random_map {
1827	my ($exit) = @_;	2540	my ($exit) = @_;
		2541
		2542	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2543
1829	# all this does is basically replace the /! path by	2544	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2545	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2546	# that depends on the exit object
1832		2547
1833	my $rmp = parse_random_map_params $exit->msg;	2548	my $rmp = parse_random_map_params $exit->msg;
1834		2549
1835	if ($exit->map) {	2550	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2551	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2552	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2553	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2554	$rmp->{origin_y} = $exit->y;
1840	}	2555	}
1841		2556
1842	$rmp->{random_seed} ||= $exit->random_seed;	2557	$rmp->{random_seed} ||= $exit->random_seed;
1843		2558
1844	my $data = cf::to_json $rmp;	2559	my $data = cf::to_json $rmp;
1845	my $md5 = Digest::MD5::md5_hex $data;	2560	my $md5 = Digest::MD5::md5_hex $data;
		2561	my $meta = "$RANDOMDIR/$md5.meta";
1846		2562
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2563	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2564	aio_write $fh, 0, (length $data), $data, 0;
		2565	undef $fh;
		2566	aio_rename "$meta~", $meta;
1849		2567
1850	$exit->slaying ("?random/$md5");	2568	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2569	$exit->msg (undef);
1852	}	2570	}
1853	}	2571	}
…		…
1855	sub cf::object::player::enter_exit {	2573	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2574	my ($self, $exit) = @_;
1857		2575
1858	return unless $self->type == cf::PLAYER;	2576	return unless $self->type == cf::PLAYER;
1859		2577
		2578	if ($exit->slaying eq "/!") {
		2579	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2580	# the problem is that $exit might not survive long enough
		2581	# so it needs to be done right now, right here
		2582	cf::sync_job { prepare_random_map $exit };
		2583	}
		2584
		2585	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2586	my $hp = $exit->stats->hp;
		2587	my $sp = $exit->stats->sp;
		2588
1860	$self->enter_link;	2589	$self->enter_link;
1861		2590
		2591	# if exit is damned, update players death & WoR home-position
		2592	$self->contr->savebed ($slaying, $hp, $sp)
		2593	if $exit->flag (FLAG_DAMNED);
		2594
1862	(async {	2595	(async {
		2596	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2597
1863	$self->deactivate_recursive; # just to be sure	2598	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2599	unless (eval {
1865	prepare_random_map $exit	2600	$self->goto ($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		2601
1871	1;	2602	1;
1872	}) {	2603	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2604	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "I'll try to bring you back to the map you were before. "	2605	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2606	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2607	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2608
1878	warn "ERROR in enter_exit: $@";	2609	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2610	$self->leave_link;
1880	}	2611	}
1881	})->prio (1);	2612	})->prio (1);
…		…
1894		2625
1895	sub cf::client::send_drawinfo {	2626	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2627	my ($self, $text, $flags) = @_;
1897		2628
1898	utf8::encode $text;	2629	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2630	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2631	}
1901		2632
		2633	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2634
		2635	Send a drawinfo or msg packet to the client, formatting the msg for the
		2636	client if neccessary. C<$type> should be a string identifying the type of
		2637	the message, with C<log> being the default. If C<$color> is negative, suppress
		2638	the message unless the client supports the msg packet.
		2639
		2640	=cut
		2641
		2642	our %CHANNEL = (
		2643	"c/identify" => {
		2644	id => "infobox",
		2645	title => "Identify",
		2646	reply => undef,
		2647	tooltip => "Items recently identified",
		2648	},
		2649	"c/examine" => {
		2650	id => "infobox",
		2651	title => "Examine",
		2652	reply => undef,
		2653	tooltip => "Signs and other items you examined",
		2654	},
		2655	"c/lookat" => {
		2656	id => "infobox",
		2657	title => "Look",
		2658	reply => undef,
		2659	tooltip => "What you saw there",
		2660	},
		2661	);
		2662
		2663	sub cf::client::send_msg {
		2664	my ($self, $channel, $msg, $color, @extra) = @_;
		2665
		2666	$msg = $self->pl->expand_cfpod ($msg);
		2667
		2668	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2669
		2670	# check predefined channels, for the benefit of C
		2671	if ($CHANNEL{$channel}) {
		2672	$channel = $CHANNEL{$channel};
		2673
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676
		2677	$channel = $channel->{id};
		2678
		2679	} elsif (ref $channel) {
		2680	# send meta info to client, if not yet sent
		2681	unless (exists $self->{channel}{$channel->{id}}) {
		2682	$self->{channel}{$channel->{id}} = $channel;
		2683	$self->ext_msg (channel_info => $channel)
		2684	if $self->can_msg;
		2685	}
		2686
		2687	$channel = $channel->{id};
		2688	}
		2689
		2690	return unless @extra || length $msg;
		2691
		2692	if ($self->can_msg) {
		2693	# default colour, mask it out
		2694	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2695	if $color & cf::NDI_DEF;
		2696
		2697	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2698	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2699	} else {
		2700	if ($color >= 0) {
		2701	# replace some tags by gcfclient-compatible ones
		2702	for ($msg) {
		2703	1 while
		2704	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2705	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2706	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2707	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2708	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2709	}
		2710
		2711	$color &= cf::NDI_COLOR_MASK;
		2712
		2713	utf8::encode $msg;
		2714
		2715	if (0 && $msg =~ /\[/) {
		2716	# COMMAND/INFO
		2717	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2718	} else {
		2719	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2720	$self->send_packet ("drawinfo $color $msg")
		2721	}
		2722	}
		2723	}
		2724	}
		2725
		2726	=item $client->ext_msg ($type, @msg)
		2727
		2728	Sends an ext event to the client.
		2729
		2730	=cut
		2731
		2732	sub cf::client::ext_msg($$@) {
		2733	my ($self, $type, @msg) = @_;
		2734
		2735	if ($self->extcmd == 2) {
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2737	} elsif ($self->extcmd == 1) { # TODO: remove
		2738	push @msg, msgtype => "event_$type";
		2739	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2740	}
		2741	}
		2742
		2743	=item $client->ext_reply ($msgid, @msg)
		2744
		2745	Sends an ext reply to the client.
		2746
		2747	=cut
		2748
		2749	sub cf::client::ext_reply($$@) {
		2750	my ($self, $id, @msg) = @_;
		2751
		2752	if ($self->extcmd == 2) {
		2753	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2754	} elsif ($self->extcmd == 1) {
		2755	#TODO: version 1, remove
		2756	unshift @msg, msgtype => "reply", msgid => $id;
		2757	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2758	}
		2759	}
1902		2760
1903	=item $success = $client->query ($flags, "text", \&cb)	2761	=item $success = $client->query ($flags, "text", \&cb)
1904		2762
1905	Queues a query to the client, calling the given callback with	2763	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>,	2764	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>.	2765	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		2766
1909	Queries can fail, so check the return code. Or don't, as queries will become	2767	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	2768	become reliable at some point in the future.
1911		2769
1912	=cut	2770	=cut
1913		2771
1914	sub cf::client::query {	2772	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	2773	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	2781	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2782	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		2783
1926	$self->send_packet ($self->{query_queue}[0][0])	2784	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	2785	if @{ $self->{query_queue} } == 1;
		2786
		2787	1
1928	}	2788	}
1929		2789
1930	cf::client->attach (	2790	cf::client->attach (
		2791	on_connect => sub {
		2792	my ($ns) = @_;
		2793
		2794	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2795	},
1931	on_reply => sub {	2796	on_reply => sub {
1932	my ($ns, $msg) = @_;	2797	my ($ns, $msg) = @_;
1933		2798
1934	# this weird shuffling is so that direct followup queries	2799	# this weird shuffling is so that direct followup queries
1935	# get handled first	2800	# get handled first
1936	my $queue = delete $ns->{query_queue}	2801	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	2802	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		2803
1939	(shift @$queue)->[1]->($msg);	2804	(shift @$queue)->[1]->($msg);
		2805	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2806
1941	push @{ $ns->{query_queue} }, @$queue;	2807	push @{ $ns->{query_queue} }, @$queue;
1942		2808
1943	if (@{ $ns->{query_queue} } == @$queue) {	2809	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2810	if (@$queue) {
…		…
1946	} else {	2812	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2813	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	2814	}
1949	}	2815	}
1950	},	2816	},
		2817	on_exticmd => sub {
		2818	my ($ns, $buf) = @_;
		2819
		2820	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2821
		2822	if (ref $msg) {
		2823	my ($type, $reply, @payload) =
		2824	"ARRAY" eq ref $msg
		2825	? @$msg
		2826	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2827
		2828	my @reply;
		2829
		2830	if (my $cb = $EXTICMD{$type}) {
		2831	@reply = $cb->($ns, @payload);
		2832	}
		2833
		2834	$ns->ext_reply ($reply, @reply)
		2835	if $reply;
		2836
		2837	} else {
		2838	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2839	}
		2840
		2841	cf::override;
		2842	},
1951	);	2843	);
1952		2844
1953	=item $client->async (\&cb)	2845	=item $client->async (\&cb)
1954		2846
1955	Create a new coroutine, running the specified callback. The coroutine will	2847	Create a new coroutine, running the specified callback. The coroutine will
…		…
1996	our $safe = new Safe "safe";	2888	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	2889	our $safe_hole = new Safe::Hole;
1998		2890
1999	$SIG{FPE} = 'IGNORE';	2891	$SIG{FPE} = 'IGNORE';
2000		2892
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2893	$safe->permit_only (Opcode::opset qw(
		2894	:base_core :base_mem :base_orig :base_math
		2895	grepstart grepwhile mapstart mapwhile
		2896	sort time
		2897	));
2002		2898
2003	# here we export the classes and methods available to script code	2899	# here we export the classes and methods available to script code
2004		2900
2005	=pod	2901	=pod
2006		2902
2007	The following fucntions and emthods are available within a safe environment:	2903	The following functions and methods are available within a safe environment:
2008		2904
2009	cf::object contr pay_amount pay_player map	2905	cf::object
		2906	contr pay_amount pay_player map x y force_find force_add destroy
		2907	insert remove name archname title slaying race decrease_ob_nr
		2908
2010	cf::object::player player	2909	cf::object::player
2011	cf::player peaceful	2910	player
2012	cf::map trigger	2911
		2912	cf::player
		2913	peaceful
		2914
		2915	cf::map
		2916	trigger
2013		2917
2014	=cut	2918	=cut
2015		2919
2016	for (	2920	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	2921	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2922	insert remove inv name archname title slaying race
		2923	decrease_ob_nr destroy)],
2018	["cf::object::player" => qw(player)],	2924	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	2925	["cf::player" => qw(peaceful)],
2020	["cf::map" => qw(trigger)],	2926	["cf::map" => qw(trigger)],
2021	) {	2927	) {
2022	no strict 'refs';	2928	no strict 'refs';
…		…
2093	=back	2999	=back
2094		3000
2095	=cut	3001	=cut
2096		3002
2097	#############################################################################	3003	#############################################################################
		3004	# the server's init and main functions
2098		3005
2099	=head2 EXTENSION DATABASE SUPPORT	3006	sub load_facedata($) {
		3007	my ($path) = @_;
2100		3008
2101	Crossfire maintains a very simple database for extension use. It can	3009	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	3010	# for this (global event?)
2103	excludes objects.	3011	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		3012
2105	The parameter C<$family> should best start with the name of the extension	3013	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		3014
2108	=over 4	3015	warn "loading facedata from $path\n";
2109		3016
2110	=item $hashref = cf::db_get $family	3017	my $facedata;
		3018	0 < aio_load $path, $facedata
		3019	or die "$path: $!";
2111		3020
2112	Return a hashref for use by the extension C<$family>, which can be	3021	$facedata = Coro::Storable::thaw $facedata;
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115		3022
2116	=item $value = cf::db_get $family => $key	3023	$facedata->{version} == 2
		3024	or cf::cleanup "$path: version mismatch, cannot proceed.";
2117		3025
2118	Returns a single value from the database	3026	# patch in the exptable
2119		3027	$facedata->{resource}{"res/exp_table"} = {
2120	=item cf::db_put $family => $hashref	3028	type => FT_RSRC,
2121		3029	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	});	3030	};
		3031	cf::cede_to_tick;
2171		3032
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3033	{
		3034	my $faces = $facedata->{faceinfo};
2176		3035
2177	sub db_get($;$) {	3036	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3037	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}	3038	cf::face::set_visibility $idx, $info->{visibility};
2180	: ($DB->{$_[0]} ||= { })	3039	cf::face::set_magicmap $idx, $info->{magicmap};
2181	}	3040	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3041	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2182		3042
2183	sub db_put($$;$) {	3043	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	},	3044	}
2197	);
2198	}
2199		3045
2200	#############################################################################	3046	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3047	next unless $info->{smooth};
		3048	my $idx = cf::face::find $face
		3049	or next;
		3050	if (my $smooth = cf::face::find $info->{smooth}) {
		3051	cf::face::set_smooth $idx, $smooth;
		3052	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3053	} else {
		3054	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3055	}
2202		3056
2203	sub cfg_load {	3057	cf::cede_to_tick;
		3058	}
		3059	}
		3060
		3061	{
		3062	my $anims = $facedata->{animinfo};
		3063
		3064	while (my ($anim, $info) = each %$anims) {
		3065	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3066	cf::cede_to_tick;
		3067	}
		3068
		3069	cf::anim::invalidate_all; # d'oh
		3070	}
		3071
		3072	{
		3073	# TODO: for gcfclient pleasure, we should give resources
		3074	# that gcfclient doesn't grok a >10000 face index.
		3075	my $res = $facedata->{resource};
		3076
		3077	my $soundconf = delete $res->{"res/sound.conf"};
		3078
		3079	while (my ($name, $info) = each %$res) {
		3080	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3081	my $data;
		3082
		3083	if ($info->{type} & 1) {
		3084	# prepend meta info
		3085
		3086	my $meta = $enc->encode ({
		3087	name => $name,
		3088	%{ $info->{meta} || {} },
		3089	});
		3090
		3091	$data = pack "(w/a*)*", $meta, $info->{data};
		3092	} else {
		3093	$data = $info->{data};
		3094	}
		3095
		3096	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3097	cf::face::set_type $idx, $info->{type};
		3098
		3099	cf::cede_to_tick;
		3100	}
		3101
		3102	if ($soundconf) {
		3103	$soundconf = $enc->decode (delete $soundconf->{data});
		3104
		3105	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3106	my $sound = $soundconf->{compat}[$_]
		3107	or next;
		3108
		3109	my $face = cf::face::find "sound/$sound->[1]";
		3110	cf::sound::set $sound->[0] => $face;
		3111	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3112	}
		3113
		3114	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3115	my $face = cf::face::find "sound/$v";
		3116	cf::sound::set $k => $face;
		3117	}
		3118	}
		3119	}
		3120
		3121	1
		3122	}
		3123
		3124	register_exticmd fx_want => sub {
		3125	my ($ns, $want) = @_;
		3126
		3127	while (my ($k, $v) = each %$want) {
		3128	$ns->fx_want ($k, $v);
		3129	}
		3130	};
		3131
		3132	sub reload_regions {
		3133	# HACK to clear player env face cache, we need some signal framework
		3134	# for this (global event?)
		3135	%ext::player_env::MUSIC_FACE_CACHE = ();
		3136
		3137	load_resource_file "$MAPDIR/regions"
		3138	or die "unable to load regions file\n";
		3139
		3140	for (cf::region::list) {
		3141	$_->{match} = qr/$_->{match}/
		3142	if exists $_->{match};
		3143	}
		3144	}
		3145
		3146	sub reload_facedata {
		3147	load_facedata "$DATADIR/facedata"
		3148	or die "unable to load facedata\n";
		3149	}
		3150
		3151	sub reload_archetypes {
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	#d# NEED to laod twice to resolve forward references
		3155	# this really needs to be done in an extra post-pass
		3156	# (which needs to be synchronous, so solve it differently)
		3157	load_resource_file "$DATADIR/archetypes"
		3158	or die "unable to load archetypes\n";
		3159	}
		3160
		3161	sub reload_treasures {
		3162	load_resource_file "$DATADIR/treasures"
		3163	or die "unable to load treasurelists\n";
		3164	}
		3165
		3166	sub reload_resources {
		3167	warn "reloading resource files...\n";
		3168
		3169	reload_regions;
		3170	reload_facedata;
		3171	#reload_archetypes;#d#
		3172	reload_archetypes;
		3173	reload_treasures;
		3174
		3175	warn "finished reloading resource files\n";
		3176	}
		3177
		3178	sub init {
		3179	reload_resources;
		3180	}
		3181
		3182	sub reload_config {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3183	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	3184	or return;
2206		3185
2207	local $/;	3186	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	3187	*CFG = YAML::Syck::Load <$fh>;
2209		3188
…		…
2223		3202
2224	sub main {	3203	sub main {
2225	# we must not ever block the main coroutine	3204	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3205	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3206	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3207	(async {
		3208	$Coro::current->{desc} = "IDLE BUG HANDLER";
2228	async { Event::one_event };	3209	Event::one_event;
		3210	})->prio (Coro::PRIO_MAX);
2229	};	3211	};
2230		3212
2231	cfg_load;	3213	reload_config;
2232	db_load;	3214	db_init;
2233	load_extensions;	3215	load_extensions;
		3216
		3217	$TICK_WATCHER->start;
2234	Event::loop;	3218	Event::loop;
2235	}	3219	}
2236		3220
2237	#############################################################################	3221	#############################################################################
2238	# initialisation and cleanup	3222	# initialisation and cleanup
2239		3223
2240	# install some emergency cleanup handlers	3224	# install some emergency cleanup handlers
2241	BEGIN {	3225	BEGIN {
2242	for my $signal (qw(INT HUP TERM)) {	3226	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3227	Event->signal (
		3228	reentrant => 0,
2244	data => WF_AUTOCANCEL,	3229	data => WF_AUTOCANCEL,
2245	signal => $signal,	3230	signal => $signal,
		3231	prio => 0,
2246	cb => sub {	3232	cb => sub {
2247	cf::cleanup "SIG$signal";	3233	cf::cleanup "SIG$signal";
2248	},	3234	},
2249	);	3235	);
2250	}	3236	}
2251	}	3237	}
2252		3238
		3239	sub write_runtime {
		3240	my $runtime = "$LOCALDIR/runtime";
		3241
		3242	# first touch the runtime file to show we are still running:
		3243	# the fsync below can take a very very long time.
		3244
		3245	IO::AIO::aio_utime $runtime, undef, undef;
		3246
		3247	my $guard = cf::lock_acquire "write_runtime";
		3248
		3249	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3250	or return;
		3251
		3252	my $value = $cf::RUNTIME + 90 + 10;
		3253	# 10 is the runtime save interval, for a monotonic clock
		3254	# 60 allows for the watchdog to kill the server.
		3255
		3256	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3257	and return;
		3258
		3259	# always fsync - this file is important
		3260	aio_fsync $fh
		3261	and return;
		3262
		3263	# touch it again to show we are up-to-date
		3264	aio_utime $fh, undef, undef;
		3265
		3266	close $fh
		3267	or return;
		3268
		3269	aio_rename "$runtime~", $runtime
		3270	and return;
		3271
		3272	warn "runtime file written.\n";
		3273
		3274	1
		3275	}
		3276
2253	sub emergency_save() {	3277	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3278	my $freeze_guard = cf::freeze_mainloop;
2255		3279
2256	warn "enter emergency perl save\n";	3280	warn "enter emergency perl save\n";
2257		3281
2258	cf::sync_job {	3282	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	3283	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3284	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3285	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3286	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	3287	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3288	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3289	$pl->valid or next;
		3290	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	3291	$pl->save;
2267	}	3292	}
2268	warn "end emergency player save\n";	3293	warn "end emergency player save\n";
2269		3294
2270	warn "begin emergency map save\n";	3295	warn "begin emergency map save\n";
…		…
2272	my $map = $cf::MAP{$path} or next;	3297	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3298	$map->valid or next;
2274	$map->save;	3299	$map->save;
2275	}	3300	}
2276	warn "end emergency map save\n";	3301	warn "end emergency map save\n";
		3302
		3303	warn "begin emergency database checkpoint\n";
		3304	BDB::db_env_txn_checkpoint $DB_ENV;
		3305	warn "end emergency database checkpoint\n";
2277	};	3306	};
2278		3307
2279	warn "leave emergency perl save\n";	3308	warn "leave emergency perl save\n";
2280	}	3309	}
2281		3310
		3311	sub post_cleanup {
		3312	my ($make_core) = @_;
		3313
		3314	warn Carp::longmess "post_cleanup backtrace"
		3315	if $make_core;
		3316	}
		3317
2282	sub reload() {	3318	sub do_reload_perl() {
2283	# can/must only be called in main	3319	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3320	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	3321	warn "can only reload from main coroutine";
2286	return;	3322	return;
2287	}	3323	}
2288		3324
2289	warn "reloading...";	3325	warn "reloading...";
2290		3326
2291	warn "freezing server";	3327	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	3328
		3329	cf::sync_job {
		3330	cf::write_runtime; # external watchdog should not bark
2293	cf::emergency_save;	3331	cf::emergency_save;
		3332	cf::write_runtime; # external watchdog should not bark
2294		3333
2295	warn "sync database to disk";	3334	warn "syncing database to disk";
2296	cf::db_sync;	3335	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		3336
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	3337	# if anything goes wrong in here, we should simply crash as we already saved
2301		3338
2302	warn "cancel all watchers";	3339	warn "cancelling all WF_AUTOCANCEL watchers";
2303	for (Event::all_watchers) {	3340	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	3341	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}	3342	}
2306		3343
		3344	warn "flushing outstanding aio requests";
		3345	for (;;) {
		3346	BDB::flush;
		3347	IO::AIO::flush;
		3348	Coro::cede;
		3349	last unless IO::AIO::nreqs || BDB::nreqs;
		3350	warn "iterate...";
		3351	}
		3352
		3353	++$RELOAD;
		3354
2307	warn "cancel all extension coros";	3355	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	3356	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	3357	%EXT_CORO = ();
2310		3358
2311	warn "remove commands";	3359	warn "removing commands";
2312	%COMMAND = ();	3360	%COMMAND = ();
2313		3361
2314	warn "remove ext commands";	3362	warn "removing ext/exti commands";
2315	%EXTCMD = ();	3363	%EXTCMD = ();
		3364	%EXTICMD = ();
2316		3365
2317	warn "unload/nuke all extensions";	3366	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	3367	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	3368	warn "... unloading $pkg";
2320		3369
2321	if (my $cb = $pkg->can ("unload")) {	3370	if (my $cb = $pkg->can ("unload")) {
2322	eval {	3371	eval {
…		…
2327		3376
2328	warn "... nuking $pkg";	3377	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;	3378	Symbol::delete_package $pkg;
2330	}	3379	}
2331		3380
2332	warn "unload all perl modules loaded from $LIBDIR";	3381	warn "unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	3382	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3383	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		3384
2336	warn "removing <$k>";	3385	warn "... unloading $k";
2337	delete $INC{$k};	3386	delete $INC{$k};
2338		3387
2339	$k =~ s/\.pm$//;	3388	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	3389	$k =~ s/\//::/g;
2341		3390
…		…
2344	}	3393	}
2345		3394
2346	Symbol::delete_package $k;	3395	Symbol::delete_package $k;
2347	}	3396	}
2348		3397
2349	warn "get rid of safe::, as good as possible";	3398	warn "getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	3399	Symbol::delete_package "safe::$_"
2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3400	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2352		3401
2353	warn "unload cf.pm \"a bit\"";	3402	warn "unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	3403	delete $INC{"cf.pm"};
		3404	delete $INC{"cf/pod.pm"};
2355		3405
2356	# don't, removes xs symbols, too,	3406	# don't, removes xs symbols, too,
2357	# and global variables created in xs	3407	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	3408	#Symbol::delete_package __PACKAGE__;
2359		3409
		3410	warn "unload completed, starting to reload now";
		3411
2360	warn "reloading cf.pm";	3412	warn "reloading cf.pm";
2361	require cf;	3413	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3414	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2363		3415
2364	warn "load config and database again";	3416	warn "loading config and database again";
2365	cf::cfg_load;	3417	cf::reload_config;
2366	cf::db_load;
2367		3418
2368	warn "load extensions";	3419	warn "loading extensions";
2369	cf::load_extensions;	3420	cf::load_extensions;
2370		3421
2371	warn "reattach attachments to objects/players";	3422	warn "reattaching attachments to objects/players";
2372	_global_reattach;	3423	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	3424	warn "reattaching attachments to maps";
2374	reattach $_ for values %MAP;	3425	reattach $_ for values %MAP;
2375	};	3426	warn "reattaching attachments to players";
		3427	reattach $_ for values %PLAYER;
2376		3428
2377	if ($@) {	3429	warn "leaving sync_job";
		3430
		3431	1
		3432	} or do {
2378	warn $@;	3433	warn $@;
2379	warn "error while reloading, exiting.";	3434	warn "error while reloading, exiting.";
2380	exit 1;	3435	exit 1;
2381	}	3436	};
2382		3437
2383	warn "reloaded";	3438	warn "reloaded";
2384	};	3439	};
2385		3440
2386	#############################################################################	3441	our $RELOAD_WATCHER; # used only during reload
2387		3442
2388	unless ($LINK_MAP) {	3443	sub reload_perl() {
2389	$LINK_MAP = cf::map::new;	3444	# doing reload synchronously and two reloads happen back-to-back,
		3445	# coro crashes during coro_state_free->destroy here.
2390		3446
2391	$LINK_MAP->width (41);	3447	$RELOAD_WATCHER ||= Event->timer (
2392	$LINK_MAP->height (41);	3448	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,	3449	after => 0,
		3450	data => WF_AUTOCANCEL,
2401	cb => sub {	3451	cb => sub {
2402	$_[0]->w->cancel;	3452	do_reload_perl;
2403		3453	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	});	3454	},
2422		3455	);
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	3456	}
2428		3457
2429	register_command "reload" => sub {	3458	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	3459	my ($who, $arg) = @_;
2431		3460
2432	if ($who->flag (FLAG_WIZ)) {	3461	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	3462	$who->message ("reloading server.");
		3463	async {
		3464	$Coro::current->{desc} = "perl_reload";
		3465	reload_perl;
		3466	};
2436	}	3467	}
2437	};	3468	};
2438		3469
2439	unshift @INC, $LIBDIR;	3470	unshift @INC, $LIBDIR;
		3471
		3472	my $bug_warning = 0;
		3473
		3474	our @WAIT_FOR_TICK;
		3475	our @WAIT_FOR_TICK_BEGIN;
		3476
		3477	sub wait_for_tick {
		3478	return unless $TICK_WATCHER->is_active;
		3479	return if $Coro::current == $Coro::main;
		3480
		3481	my $signal = new Coro::Signal;
		3482	push @WAIT_FOR_TICK, $signal;
		3483	$signal->wait;
		3484	}
		3485
		3486	sub wait_for_tick_begin {
		3487	return unless $TICK_WATCHER->is_active;
		3488	return if $Coro::current == $Coro::main;
		3489
		3490	my $signal = new Coro::Signal;
		3491	push @WAIT_FOR_TICK_BEGIN, $signal;
		3492	$signal->wait;
		3493	}
2440		3494
2441	$TICK_WATCHER = Event->timer (	3495	$TICK_WATCHER = Event->timer (
2442	reentrant => 0,	3496	reentrant => 0,
		3497	parked => 1,
2443	prio => 0,	3498	prio => 0,
2444	at => $NEXT_TICK || $TICK,	3499	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,	3500	data => WF_AUTOCANCEL,
2446	cb => sub {	3501	cb => sub {
		3502	if ($Coro::current != $Coro::main) {
		3503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3504	unless ++$bug_warning > 10;
		3505	return;
		3506	}
		3507
		3508	$NOW = $tick_start = Event::time;
		3509
2447	cf::server_tick; # one server iteration	3510	cf::server_tick; # one server iteration
		3511
2448	$RUNTIME += $TICK;	3512	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;	3513	$NEXT_TICK += $TICK;
2450		3514
2451	$WAIT_FOR_TICK->broadcast;	3515	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3516	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3517	Coro::async_pool {
		3518	$Coro::current->{desc} = "runtime saver";
		3519	write_runtime
		3520	or warn "ERROR: unable to write runtime file: $!";
		3521	};
		3522	}
		3523
		3524	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3525	$sig->send;
		3526	}
		3527	while (my $sig = shift @WAIT_FOR_TICK) {
		3528	$sig->send;
		3529	}
		3530
		3531	$NOW = Event::time;
2453		3532
2454	# if we are delayed by four ticks or more, skip them all	3533	# if we are delayed by four ticks or more, skip them all
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3534	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2456		3535
2457	$TICK_WATCHER->at ($NEXT_TICK);	3536	$TICK_WATCHER->at ($NEXT_TICK);
2458	$TICK_WATCHER->start;	3537	$TICK_WATCHER->start;
		3538
		3539	$LOAD = ($NOW - $tick_start) / $TICK;
		3540	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3541
		3542	_post_tick;
2459	},	3543	},
2460	);	3544	);
2461		3545
		3546	{
		3547	BDB::min_parallel 8;
2462	IO::AIO::max_poll_time $TICK * 0.2;	3548	BDB::max_poll_time $TICK * 0.1;
2463		3549	$BDB_POLL_WATCHER = Event->io (
2464	Event->io (	3550	reentrant => 0,
2465	fd => IO::AIO::poll_fileno,	3551	fd => BDB::poll_fileno,
2466	poll => 'r',	3552	poll => 'r',
2467	prio => 5,	3553	prio => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471
2472	Event->timer (
2473	data => WF_AUTOCANCEL,	3554	data => WF_AUTOCANCEL,
		3555	cb => \&BDB::poll_cb,
		3556	);
		3557
		3558	BDB::set_sync_prepare {
		3559	my $status;
		3560	my $current = $Coro::current;
		3561	(
		3562	sub {
		3563	$status = $!;
		3564	$current->ready; undef $current;
		3565	},
		3566	sub {
		3567	Coro::schedule while defined $current;
		3568	$! = $status;
		3569	},
		3570	)
		3571	};
		3572
		3573	unless ($DB_ENV) {
		3574	$DB_ENV = BDB::db_env_create;
		3575	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3576	| BDB::LOG_AUTOREMOVE, 1);
		3577	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3578	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3579
		3580	cf::sync_job {
		3581	eval {
		3582	BDB::db_env_open
		3583	$DB_ENV,
		3584	$BDBDIR,
		3585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3587	0666;
		3588
		3589	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3590	};
		3591
		3592	cf::cleanup "db_env_open(db): $@" if $@;
		3593	};
		3594	}
		3595
		3596	$BDB_DEADLOCK_WATCHER = Event->timer (
2474	after => 0,	3597	after => 3,
2475	interval => 10,	3598	interval => 1,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
2476	cb => sub {	3602	cb => sub {
2477	(Coro::unblock_sub {	3603	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2478	write_runtime	3604	},
2479	or warn "ERROR: unable to write runtime file: $!";	3605	);
		3606	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3607	after => 11,
		3608	interval => 60,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3614	},
		3615	);
		3616	$BDB_TRICKLE_WATCHER = Event->timer (
		3617	after => 5,
		3618	interval => 10,
		3619	hard => 1,
		3620	prio => 0,
		3621	data => WF_AUTOCANCEL,
		3622	cb => sub {
		3623	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3624	},
		3625	);
		3626	}
		3627
		3628	{
		3629	IO::AIO::min_parallel 8;
		3630
		3631	undef $Coro::AIO::WATCHER;
		3632	IO::AIO::max_poll_time $TICK * 0.1;
		3633	$AIO_POLL_WATCHER = Event->io (
		3634	reentrant => 0,
		3635	data => WF_AUTOCANCEL,
		3636	fd => IO::AIO::poll_fileno,
		3637	poll => 'r',
		3638	prio => 0,
		3639	cb => \&IO::AIO::poll_cb,
		3640	);
		3641	}
		3642
		3643	my $_log_backtrace;
		3644
		3645	sub _log_backtrace {
		3646	my ($msg, @addr) = @_;
		3647
		3648	$msg =~ s/\n//;
		3649
		3650	# limit the # of concurrent backtraces
		3651	if ($_log_backtrace < 2) {
		3652	++$_log_backtrace;
		3653	async {
		3654	$Coro::current->{desc} = "abt $msg";
		3655
		3656	my @bt = fork_call {
		3657	@addr = map { sprintf "%x", $_ } @addr;
		3658	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3659	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3660	or die "addr2line: $!";
		3661
		3662	my @funcs;
		3663	my @res = <$fh>;
		3664	chomp for @res;
		3665	while (@res) {
		3666	my ($func, $line) = splice @res, 0, 2, ();
		3667	push @funcs, "[$func] $line";
		3668	}
		3669
		3670	@funcs
		3671	};
		3672
		3673	LOG llevInfo, "[ABT] $msg\n";
		3674	LOG llevInfo, "[ABT] $_\n" for @bt;
		3675	--$_log_backtrace;
2480	})->();	3676	};
		3677	} else {
		3678	LOG llevInfo, "[ABT] $msg\n";
		3679	LOG llevInfo, "[ABT] [suppressed]\n";
2481	},	3680	}
2482	);	3681	}
		3682
		3683	# load additional modules
		3684	use cf::pod;
2483		3685
2484	END { cf::emergency_save }	3686	END { cf::emergency_save }
2485		3687
2486	1	3688	1
2487		3689

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