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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 2007 UTC vs.
Revision 1.387 by root, Mon Oct 15 23:49:10 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 ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		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
26	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
27		44
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$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
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	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(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	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;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	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
90	every server tick.	136	every server tick.
91		137
92	=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
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	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.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		206
133	# 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
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	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
191	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,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	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
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($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#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
226	sub freeze_mainloop {	331	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
228		333
229	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
230	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
231	$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;
232	}	397	}
233		398
234	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
235		400
236	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		406
242	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
243		408
244	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
245		410
246	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)
247	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
248	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.
249		415
250	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
251	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
252	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
253	fast or be very important.	419	fast or be very important.
…		…
256		422
257	sub sync_job(&) {	423	sub sync_job(&) {
258	my ($job) = @_;	424	my ($job) = @_;
259		425
260	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
261	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
263		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
264	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	435	# (but this is cancel-safe)
266	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
267		437
268	my $busy = 1;	438	my $busy = 1;
269	my @res;	439	my @res;
270		440
271	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	443	@res = eval { $job->() };
273	warn $@ if $@;	444	warn $@ if $@;
274	undef $busy;	445	undef $busy;
275	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
276		447
277	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
278	Coro::cede or Event::one_event;	452	Event::one_event;
279	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
280		462
281	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
282	} else {	464	} else {
283	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
284		466
…		…
286	}	468	}
287	}	469	}
288		470
289	=item $coro = cf::async_ext { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
290		472
291	Like async, but this coro is automcatially being canceled when the	473	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	474	extension calling this is being unloaded.
293		475
294	=cut	476	=cut
295		477
296	sub async_ext(&) {	478	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
305		487
306	$coro	488	$coro
307	}	489	}
308		490
309	sub write_runtime {	491	=item fork_call { }, $args
310	my $runtime = cf::localdir . "/runtime";
311		492
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
313	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
314		497
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		499
319	aio_fsync $fh	500	sub fork_call(&@) {
320	and return;	501	my ($cb, @args) = @_;
321		502
322	close $fh	503	# we seemingly have to make a local copy of the whole thing,
323	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
324		506
325	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
326	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
327		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
328	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
329	}	651	}
330		652
331	=back	653	=back
332		654
333	=cut	655	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		656
455	#############################################################################	657	#############################################################################
456		658
457	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
458		660
…		…
460	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
461	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
462		664
463	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
464	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
465	crossfire+).	667	Crossfire TRT).
466		668
467	=over 4	669	=over 4
468		670
469	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
470		672
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	787	our @CB_MAP = ();
586		788
587	my %attachment;	789	my %attachment;
588		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
589	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
591		799
592	use sort 'stable';	800	use sort 'stable';
593		801
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
628		836
629	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		841
634	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	843	my $pkg = shift @arg;
636		844
637	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
667	}	875	}
668		876
669	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
670	} else {	878	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	880	}
673		881
674	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
675	}	883	}
676		884
…		…
678	if (ref $_[0]) {	886	if (ref $_[0]) {
679	_object_attach @_;	887	_object_attach @_;
680	} else {	888	} else {
681	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
682	}	890	}
		891	_recalc_want;
683	};	892	};
684		893
685	# all those should be optimised	894	# all those should be optimised
686	sub cf::attachable::detach {	895	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
691	reattach ($obj);	900	reattach ($obj);
692	} else {	901	} else {
693	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
694	}	903	}
		904	_recalc_want;
695	};	905	};
696		906
697	sub cf::attachable::attached {	907	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
699		909
…		…
714	";	924	";
715	die if $@;	925	die if $@;
716	}	926	}
717		927
718	our $override;	928	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		930
721	sub override {	931	sub override {
722	$override = 1;	932	$override = 1;
723	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
724	}	934	}
725		935
726	sub do_invoke {	936	sub do_invoke {
727	my $event = shift;	937	my $event = shift;
728	my $callbacks = shift;	938	my $callbacks = shift;
729		939
730	@invoke_results = ();	940	@INVOKE_RESULTS = ();
731		941
732	local $override;	942	local $override;
733		943
734	for (@$callbacks) {	944	for (@$callbacks) {
735	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
752		962
753	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
754		964
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		968
759	=back	969	=back
760		970
761	=cut	971	=cut
762		972
763	#############################################################################	973	#############################################################################
764	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
765		1017
766	sub reattach {	1018	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		1023
770	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
771		1025
772	@$registry = ();	1026	@$registry = ();
773		1027
…		…
814	sub object_freezer_save {	1068	sub object_freezer_save {
815	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
816		1070
817	sync_job {	1071	sync_job {
818	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
819	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
820	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
821		1076
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	1081	close $fh;
827		1082
828	if (@$objs) {	1083	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	1089	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
836	}	1091	}
837	} else {	1092	} else {
838	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
844	}	1099	}
845	} else {	1100	} else {
846	aio_unlink $filename;	1101	aio_unlink $filename;
847	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
848	}	1103	}
849	}	1104	};
850	}	1105	}
851		1106
852	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
853	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
854		1109
…		…
866	or return;	1121	or return;
867		1122
868	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
869	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
870	or return;	1125	or return;
871	$av = eval { (Storable::thaw $av)->{objs} };
872	}
873		1126
		1127	my $st = eval { Coro::Storable::thaw $av }
		1128	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1129	$av = $st->{objs};
		1130	}
		1131
		1132	utf8::decode (my $decname = $filename);
874	warn sprintf "loading %s (%d)\n",	1133	warn sprintf "loading %s (%d,%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1134	$decname, length $data, scalar @{$av || []};
		1135
876	return ($data, $av);	1136	($data, $av)
877	}	1137	}
		1138
		1139	=head2 COMMAND CALLBACKS
		1140
		1141	=over 4
		1142
		1143	=cut
878		1144
879	#############################################################################	1145	#############################################################################
880	# command handling &c	1146	# command handling &c
881		1147
882	=item cf::register_command $name => \&callback($ob,$args);	1148	=item cf::register_command $name => \&callback($ob,$args);
…		…
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1161	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1162	}
897		1163
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1164	=item cf::register_extcmd $name => \&callback($pl,$packet);
899		1165
900	Register a callbackf ro execution when the client sends an extcmd packet.	1166	Register a callback for execution when the client sends an (synchronous)
		1167	extcmd packet. Ext commands will be processed in the order they are
		1168	received by the server, like other user commands. The first argument is
		1169	the logged-in player. Ext commands can only be processed after a player
		1170	has logged in successfully.
901		1171
902	If the callback returns something, it is sent back as if reply was being	1172	If the callback returns something, it is sent back as if reply was being
903	called.	1173	called.
904		1174
		1175	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1176
		1177	Register a callback for execution when the client sends an (asynchronous)
		1178	exticmd packet. Exti commands are processed by the server as soon as they
		1179	are received, i.e. out of order w.r.t. other commands. The first argument
		1180	is a client socket. Exti commands can be received anytime, even before
		1181	log-in.
		1182
		1183	If the callback returns something, it is sent back as if reply was being
		1184	called.
		1185
905	=cut	1186	=cut
906		1187
907	sub register_extcmd {	1188	sub register_extcmd {
908	my ($name, $cb) = @_;	1189	my ($name, $cb) = @_;
909		1190
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1191	$EXTCMD{$name} = $cb;
		1192	}
		1193
		1194	sub register_exticmd {
		1195	my ($name, $cb) = @_;
		1196
		1197	$EXTICMD{$name} = $cb;
914	}	1198	}
915		1199
916	cf::player->attach (	1200	cf::player->attach (
917	on_command => sub {	1201	on_command => sub {
918	my ($pl, $name, $params) = @_;	1202	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1211	cf::override;
928	},	1212	},
929	on_extcmd => sub {	1213	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1214	my ($pl, $buf) = @_;
931		1215
932	my $msg = eval { from_json $buf };	1216	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1217
934	if (ref $msg) {	1218	if (ref $msg) {
		1219	my ($type, $reply, @payload) =
		1220	"ARRAY" eq ref $msg
		1221	? @$msg
		1222	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1223
		1224	my @reply;
		1225
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1226	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1227	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1228	}
		1229
		1230	$pl->ext_reply ($reply, @reply)
		1231	if $reply;
		1232
940	} else {	1233	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1234	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1235	}
943		1236
944	cf::override;	1237	cf::override;
945	},	1238	},
946	);	1239	);
947		1240
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	1241	sub load_extensions {
		1242	cf::sync_job {
		1243	my %todo;
		1244
		1245	for my $path (<$LIBDIR/*.ext>) {
		1246	next unless -r $path;
		1247
		1248	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1249	my $base = $1;
		1250	my $pkg = $1;
		1251	$pkg =~ s/[^[:word:]]/_/g;
		1252	$pkg = "ext::$pkg";
		1253
		1254	open my $fh, "<:utf8", $path
		1255	or die "$path: $!";
		1256
		1257	my $source = do { local $/; <$fh> };
		1258
		1259	my %ext = (
		1260	path => $path,
		1261	base => $base,
		1262	pkg => $pkg,
		1263	);
		1264
		1265	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1266	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1267
		1268	$ext{source} =
		1269	"package $pkg; use strict; use utf8;\n"
		1270	. "#line 1 \"$path\"\n{\n"
		1271	. $source
		1272	. "\n};\n1";
		1273
		1274	$todo{$base} = \%ext;
		1275	}
		1276
		1277	my %done;
		1278	while (%todo) {
		1279	my $progress;
		1280
		1281	while (my ($k, $v) = each %todo) {
		1282	for (split /,\s*/, $v->{meta}{depends}) {
		1283	goto skip
		1284	unless exists $done{$_};
		1285	}
		1286
		1287	warn "... loading '$k' into '$v->{pkg}'\n";
		1288
		1289	unless (eval $v->{source}) {
		1290	my $msg = $@ ? "$v->{path}: $@\n"
		1291	: "$v->{base}: extension inactive.\n";
		1292
		1293	if (exists $v->{meta}{mandatory}) {
		1294	warn $msg;
		1295	warn "mandatory extension failed to load, exiting.\n";
		1296	exit 1;
		1297	}
		1298
		1299	warn $msg;
		1300	}
		1301
		1302	$done{$k} = delete $todo{$k};
		1303	push @EXTS, $v->{pkg};
		1304	$progress = 1;
		1305	}
		1306
		1307	skip:
		1308	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1309	unless $progress;
		1310	}
		1311	};
		1312	}
		1313
		1314	#############################################################################
		1315
		1316	=back
		1317
		1318	=head2 CORE EXTENSIONS
		1319
		1320	Functions and methods that extend core crossfire objects.
		1321
		1322	=cut
		1323
		1324	package cf::player;
		1325
		1326	use Coro::AIO;
		1327
		1328	=head3 cf::player
		1329
		1330	=over 4
		1331
		1332	=item cf::player::num_playing
		1333
		1334	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1335
		1336	=cut
		1337
		1338	sub num_playing {
		1339	scalar grep
		1340	$_->ob->map
		1341	&& !$_->hidden
		1342	&& !$_->ob->flag (cf::FLAG_WIZ),
		1343	cf::player::list
		1344	}
		1345
		1346	=item cf::player::find $login
		1347
		1348	Returns the given player object, loading it if necessary (might block).
		1349
		1350	=cut
		1351
		1352	sub playerdir($) {
		1353	"$PLAYERDIR/"
		1354	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1355	}
		1356
		1357	sub path($) {
		1358	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1359
		1360	(playerdir $login) . "/playerdata"
		1361	}
		1362
		1363	sub find_active($) {
		1364	$cf::PLAYER{$_[0]}
		1365	and $cf::PLAYER{$_[0]}->active
		1366	and $cf::PLAYER{$_[0]}
		1367	}
		1368
		1369	sub exists($) {
		1370	my ($login) = @_;
		1371
		1372	$cf::PLAYER{$login}
		1373	or cf::sync_job { !aio_stat path $login }
		1374	}
		1375
		1376	sub find($) {
		1377	return $cf::PLAYER{$_[0]} || do {
		1378	my $login = $_[0];
		1379
		1380	my $guard = cf::lock_acquire "user_find:$login";
		1381
		1382	$cf::PLAYER{$_[0]} || do {
		1383	# rename old playerfiles to new ones
		1384	#TODO: remove when no longer required
		1385	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1386	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1387	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1388	aio_unlink +(playerdir $login) . "/$login.pl";
		1389
		1390	my $f = new_from_file cf::object::thawer path $login
		1391	or return;
		1392
		1393	my $pl = cf::player::load_pl $f
		1394	or return;
		1395	local $cf::PLAYER_LOADING{$login} = $pl;
		1396	$f->resolve_delayed_derefs;
		1397	$cf::PLAYER{$login} = $pl
		1398	}
		1399	}
		1400	}
		1401
		1402	sub save($) {
		1403	my ($pl) = @_;
		1404
		1405	return if $pl->{deny_save};
		1406
		1407	my $path = path $pl;
		1408	my $guard = cf::lock_acquire "user_save:$path";
		1409
		1410	return if $pl->{deny_save};
		1411
		1412	aio_mkdir playerdir $pl, 0770;
		1413	$pl->{last_save} = $cf::RUNTIME;
		1414
		1415	$pl->save_pl ($path);
		1416	cf::cede_to_tick;
		1417	}
		1418
		1419	sub new($) {
		1420	my ($login) = @_;
		1421
		1422	my $self = create;
		1423
		1424	$self->ob->name ($login);
		1425	$self->{deny_save} = 1;
		1426
		1427	$cf::PLAYER{$login} = $self;
		1428
		1429	$self
		1430	}
		1431
		1432	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1433
		1434	=cut
		1435
		1436	sub send_msg {
		1437	my $ns = shift->ns
		1438	or return;
		1439	$ns->send_msg (@_);
		1440	}
		1441
		1442	=item $pl->quit_character
		1443
		1444	Nukes the player without looking back. If logged in, the connection will
		1445	be destroyed. May block for a long time.
		1446
		1447	=cut
		1448
		1449	sub quit_character {
		1450	my ($pl) = @_;
		1451
		1452	my $name = $pl->ob->name;
		1453
		1454	$pl->{deny_save} = 1;
		1455	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1456
		1457	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1458	$pl->deactivate;
		1459	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1460	$pl->ns->destroy if $pl->ns;
		1461
		1462	my $path = playerdir $pl;
		1463	my $temp = "$path~$cf::RUNTIME~deleting~";
		1464	aio_rename $path, $temp;
		1465	delete $cf::PLAYER{$pl->ob->name};
		1466	$pl->destroy;
		1467
		1468	my $prefix = qr<^~\Q$name\E/>;
		1469
		1470	# nuke player maps
		1471	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1472
		1473	IO::AIO::aio_rmtree $temp;
		1474	}
		1475
		1476	=item $pl->kick
		1477
		1478	Kicks a player out of the game. This destroys the connection.
		1479
		1480	=cut
		1481
		1482	sub kick {
		1483	my ($pl, $kicker) = @_;
		1484
		1485	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1486	$pl->killer ("kicked");
		1487	$pl->ns->destroy;
		1488	}
		1489
		1490	=item cf::player::list_logins
		1491
		1492	Returns am arrayref of all valid playernames in the system, can take a
		1493	while and may block, so not sync_job-capable, ever.
		1494
		1495	=cut
		1496
		1497	sub list_logins {
		1498	my $dirs = aio_readdir $PLAYERDIR
		1499	or return [];
		1500
		1501	my @logins;
		1502
		1503	for my $login (@$dirs) {
		1504	my $path = path $login;
		1505
		1506	# a .pst is a dead give-away for a valid player
		1507	unless (-e "$path.pst") {
		1508	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1509	aio_read $fh, 0, 512, my $buf, 0 or next;
		1510	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1511	}
		1512
		1513	utf8::decode $login;
		1514	push @logins, $login;
		1515	}
		1516
		1517	\@logins
		1518	}
		1519
		1520	=item $player->maps
		1521
		1522	Returns an arrayref of map paths that are private for this
		1523	player. May block.
		1524
		1525	=cut
		1526
		1527	sub maps($) {
		1528	my ($pl) = @_;
		1529
		1530	$pl = ref $pl ? $pl->ob->name : $pl;
		1531
		1532	my $files = aio_readdir playerdir $pl
		1533	or return;
		1534
		1535	my @paths;
		1536
		1537	for (@$files) {
		1538	utf8::decode $_;
		1539	next if /\.(?:pl|pst)$/;
		1540	next unless /^$PATH_SEP/o;
		1541
		1542	push @paths, cf::map::normalise "~$pl/$_";
		1543	}
		1544
		1545	\@paths
		1546	}
		1547
		1548	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1549
		1550	Expand crossfire pod fragments into protocol xml.
		1551
		1552	=cut
		1553
		1554	sub expand_cfpod {
		1555	((my $self), (local $_)) = @_;
		1556
		1557	# escape & and <
		1558	s/&/&amp;/g;
		1559	s/(?<![BIUGHT])</&lt;/g;
		1560
		1561	# this is buggy, it needs to properly take care of nested <'s
		1562
		1563	1 while
		1564	# replace B<>, I<>, U<> etc.
		1565	s/B<([^\>]*)>/<b>$1<\/b>/
		1566	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1567	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1568	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1569	# replace G<male|female> tags
		1570	|| s{G<([^>|]*)\|([^>]*)>}{
		1571	$self->gender ? $2 : $1
		1572	}ge
		1573	# replace H<hint text>
		1574	|| s{H<([^\>]*)>}
		1575	{
		1576	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1577	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1578	"")
		1579	[$self->{hintmode}]
		1580	}ge;
		1581
		1582	# create single paragraphs (very hackish)
		1583	s/(?<=\S)\n(?=\w)/ /g;
		1584
		1585	# compress some whitespace
		1586	s/\s+\n/\n/g; # ws line-ends
		1587	s/\n\n+/\n/g; # double lines
		1588	s/^\n+//; # beginning lines
		1589	s/\n+$//; # ending lines
		1590
		1591	$_
		1592	}
		1593
		1594	sub hintmode {
		1595	$_[0]{hintmode} = $_[1] if @_ > 1;
		1596	$_[0]{hintmode}
		1597	}
		1598
		1599	=item $player->ext_reply ($msgid, @msg)
		1600
		1601	Sends an ext reply to the player.
		1602
		1603	=cut
		1604
		1605	sub ext_reply($$@) {
		1606	my ($self, $id, @msg) = @_;
		1607
		1608	$self->ns->ext_reply ($id, @msg)
		1609	}
		1610
		1611	=item $player->ext_msg ($type, @msg)
		1612
		1613	Sends an ext event to the client.
		1614
		1615	=cut
		1616
		1617	sub ext_msg($$@) {
		1618	my ($self, $type, @msg) = @_;
		1619
		1620	$self->ns->ext_msg ($type, @msg);
		1621	}
		1622
		1623	=head3 cf::region
		1624
		1625	=over 4
		1626
		1627	=cut
		1628
		1629	package cf::region;
		1630
		1631	=item cf::region::find_by_path $path
		1632
		1633	Tries to decuce the likely region for a map knowing only its path.
		1634
		1635	=cut
		1636
		1637	sub find_by_path($) {
955	my ($path) = @_;	1638	my ($path) = @_;
956		1639
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1640	my ($match, $specificity);
958	my $base = $1;
959	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962		1641
963	warn "loading '$path' into '$pkg'\n";	1642	for my $region (list) {
964		1643	if ($region->{match} && $path =~ $region->{match}) {
965	open my $fh, "<:utf8", $path	1644	($match, $specificity) = ($region, $region->specificity)
966	or die "$path: $!";	1645	if $region->specificity > $specificity;
967		1646	}
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	1647	}
997		1648
998	# remove commands	1649	$match
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}
1023
1024	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;
1027	eval {
1028	load_extension $ext;
1029	1
1030	} or warn "$ext not loaded: $@";
1031	}
1032	}
1033
1034	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071
1072	=head2 CORE EXTENSIONS
1073
1074	Functions and methods that extend core crossfire objects.
1075
1076	=head3 cf::player
1077
1078	=over 4
1079
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut
1085
1086	sub cf::player::exists($) {
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092
1093	Sends an ext reply to the player.
1094
1095	=cut
1096
1097	sub cf::player::ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;
1099
1100	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . to_json \%msg);
1103	}	1650	}
1104		1651
1105	=back	1652	=back
1106
1107		1653
1108	=head3 cf::map	1654	=head3 cf::map
1109		1655
1110	=over 4	1656	=over 4
1111		1657
…		…
1114	package cf::map;	1660	package cf::map;
1115		1661
1116	use Fcntl;	1662	use Fcntl;
1117	use Coro::AIO;	1663	use Coro::AIO;
1118		1664
		1665	use overload
		1666	'""' => \&as_string,
		1667	fallback => 1;
		1668
1119	our $MAX_RESET = 3600;	1669	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1670	our $DEFAULT_RESET = 3000;
1121		1671
1122	sub generate_random_map {	1672	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1673	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1674	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1675	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1676	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1677	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1678	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1679	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1680	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1681	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1682	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1683	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1684	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1685	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1686	(cf::region::find $rmp->{region}), $rmp->{custom}
		1687	)
		1688	}
		1689
		1690	=item cf::map->register ($regex, $prio)
		1691
		1692	Register a handler for the map path matching the given regex at the
		1693	givne priority (higher is better, built-in handlers have priority 0, the
		1694	default).
		1695
		1696	=cut
		1697
		1698	sub register {
		1699	my (undef, $regex, $prio) = @_;
		1700	my $pkg = caller;
		1701
		1702	no strict;
		1703	push @{"$pkg\::ISA"}, __PACKAGE__;
		1704
		1705	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1706	}
		1707
		1708	# also paths starting with '/'
		1709	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1710
		1711	sub thawer_merge {
		1712	my ($self, $merge) = @_;
		1713
		1714	# we have to keep some variables in memory intact
		1715	local $self->{path};
		1716	local $self->{load_path};
		1717
		1718	$self->SUPER::thawer_merge ($merge);
		1719	}
		1720
		1721	sub normalise {
		1722	my ($path, $base) = @_;
		1723
		1724	$path = "$path"; # make sure its a string
		1725
		1726	$path =~ s/\.map$//;
		1727
		1728	# map plan:
		1729	#
		1730	# /! non-realised random map exit (special hack!)
		1731	# {... are special paths that are not being touched
		1732	# ?xxx/... are special absolute paths
		1733	# ?random/... random maps
		1734	# /... normal maps
		1735	# ~user/... per-player map of a specific user
		1736
		1737	$path =~ s/$PATH_SEP/\//go;
		1738
		1739	# treat it as relative path if it starts with
		1740	# something that looks reasonable
		1741	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1742	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1743
		1744	$base =~ s{[^/]+/?$}{};
		1745	$path = "$base/$path";
		1746	}
		1747
		1748	for ($path) {
		1749	redo if s{//}{/};
		1750	redo if s{/\.?/}{/};
		1751	redo if s{/[^/]+/\.\./}{/};
		1752	}
		1753
		1754	$path
		1755	}
		1756
		1757	sub new_from_path {
		1758	my (undef, $path, $base) = @_;
		1759
		1760	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1761
		1762	$path = normalise $path, $base;
		1763
		1764	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1765	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1766	my $self = bless cf::map::new, $pkg;
		1767	$self->{path} = $path; $self->path ($path);
		1768	$self->init; # pass $1 etc.
		1769	return $self;
		1770	}
		1771	}
		1772
		1773	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1774	()
		1775	}
		1776
		1777	sub init {
		1778	my ($self) = @_;
		1779
		1780	$self
		1781	}
		1782
		1783	sub as_string {
		1784	my ($self) = @_;
		1785
		1786	"$self->{path}"
		1787	}
		1788
		1789	# the displayed name, this is a one way mapping
		1790	sub visible_name {
		1791	&as_string
		1792	}
		1793
		1794	# the original (read-only) location
		1795	sub load_path {
		1796	my ($self) = @_;
		1797
		1798	"$MAPDIR/$self->{path}.map"
		1799	}
		1800
		1801	# the temporary/swap location
		1802	sub save_path {
		1803	my ($self) = @_;
		1804
		1805	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1806	"$TMPDIR/$path.map"
		1807	}
		1808
		1809	# the unique path, undef == no special unique path
		1810	sub uniq_path {
		1811	my ($self) = @_;
		1812
		1813	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1814	"$UNIQUEDIR/$path"
1139	}	1815	}
1140		1816
1141	# and all this just because we cannot iterate over	1817	# and all this just because we cannot iterate over
1142	# all maps in C++...	1818	# all maps in C++...
1143	sub change_all_map_light {	1819	sub change_all_map_light {
…		…
1145		1821
1146	$_->change_map_light ($change)	1822	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1823	for grep $_->outdoor, values %cf::MAP;
1148	}	1824	}
1149		1825
		1826	sub decay_objects {
		1827	my ($self) = @_;
		1828
		1829	return if $self->{deny_reset};
		1830
		1831	$self->do_decay_objects;
		1832	}
		1833
		1834	sub unlink_save {
		1835	my ($self) = @_;
		1836
		1837	utf8::encode (my $save = $self->save_path);
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1839	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1840	}
		1841
1150	sub try_load_header($) {	1842	sub load_header_from($) {
1151	my ($path) = @_;	1843	my ($self, $path) = @_;
1152		1844
1153	utf8::encode $path;	1845	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1846	my $f = new_from_file cf::object::thawer $path
1155	or return;	1847	or return;
1156		1848
1157	my $map = cf::map::new	1849	$self->_load_header ($f)
1158	or return;	1850	or return;
1159		1851
1160	# for better error messages only, will be overwritten	1852	local $MAP_LOADING{$self->{path}} = $self;
1161	$map->path ($path);	1853	$f->resolve_delayed_derefs;
1162		1854
1163	$map->load_header ($path)	1855	$self->{load_path} = $path;
		1856
		1857	1
		1858	}
		1859
		1860	sub load_header_orig {
		1861	my ($self) = @_;
		1862
		1863	$self->load_header_from ($self->load_path)
		1864	}
		1865
		1866	sub load_header_temp {
		1867	my ($self) = @_;
		1868
		1869	$self->load_header_from ($self->save_path)
		1870	}
		1871
		1872	sub prepare_temp {
		1873	my ($self) = @_;
		1874
		1875	$self->last_access ((delete $self->{last_access})
		1876	|| $cf::RUNTIME); #d#
		1877	# safety
		1878	$self->{instantiate_time} = $cf::RUNTIME
		1879	if $self->{instantiate_time} > $cf::RUNTIME;
		1880	}
		1881
		1882	sub prepare_orig {
		1883	my ($self) = @_;
		1884
		1885	$self->{load_original} = 1;
		1886	$self->{instantiate_time} = $cf::RUNTIME;
		1887	$self->last_access ($cf::RUNTIME);
		1888	$self->instantiate;
		1889	}
		1890
		1891	sub load_header {
		1892	my ($self) = @_;
		1893
		1894	if ($self->load_header_temp) {
		1895	$self->prepare_temp;
		1896	} else {
		1897	$self->load_header_orig
1164	or return;	1898	or return;
		1899	$self->prepare_orig;
		1900	}
1165		1901
1166	$map->{load_path} = $path;	1902	$self->{deny_reset} = 1
		1903	if $self->no_reset;
1167		1904
1168	$map	1905	$self->default_region (cf::region::find_by_path $self->{path})
		1906	unless $self->default_region;
		1907
		1908	1
1169	}	1909	}
1170		1910
1171	sub find;	1911	sub find;
1172	sub find {	1912	sub find {
1173	my ($path, $origin) = @_;	1913	my ($path, $origin) = @_;
1174		1914
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1915	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1916
		1917	cf::lock_wait "map_data:$path";#d#remove
1180	cf::lock_wait "map_find:$key";	1918	cf::lock_wait "map_find:$path";
1181		1919
1182	$cf::MAP{$key} || do {	1920	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1921	my $guard1 = cf::lock_acquire "map_find:$path";
		1922	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1184		1923
1185	# do it the slow way	1924	my $map = new_from_path cf::map $path
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1925	or return;
1204		1926
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1927	$map->{last_save} = $cf::RUNTIME;
1217		1928
1218	Coro::cede;	1929	$map->load_header
		1930	or return;
1219		1931
1220	if ($map->should_reset) {	1932	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1933	# doing this can freeze the server in a sync job, obviously
		1934	#$cf::WAIT_FOR_TICK->wait;
		1935	undef $guard1;
		1936	undef $guard2;
1221	$map->reset;	1937	$map->reset;
1222	undef $guard;
1223	$map = find $path	1938	return find $path;
1224	or return;
1225	}	1939	}
1226		1940
1227	$cf::MAP{$key} = $map	1941	$cf::MAP{$path} = $map
1228	}	1942	}
1229	}	1943	}
		1944
		1945	sub pre_load { }
		1946	sub post_load { }
1230		1947
1231	sub load {	1948	sub load {
1232	my ($self) = @_;	1949	my ($self) = @_;
1233		1950
		1951	local $self->{deny_reset} = 1; # loading can take a long time
		1952
1234	my $path = $self->{path};	1953	my $path = $self->{path};
		1954
		1955	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1956	my $guard = cf::lock_acquire "map_data:$path";
1236		1957
		1958	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1959	return unless $self->in_memory == cf::MAP_SWAPPED;
1238		1960
1239	$self->in_memory (cf::MAP_LOADING);	1961	$self->in_memory (cf::MAP_LOADING);
1240		1962
1241	$self->alloc;	1963	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	1964
		1965	$self->pre_load;
		1966	cf::cede_to_tick;
		1967
		1968	my $f = new_from_file cf::object::thawer $self->{load_path};
		1969	$f->skip_block;
		1970	$self->_load_objects ($f)
1243	or return;	1971	or return;
1244		1972
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1973	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1974	if delete $self->{load_original};
1247		1975
1248	if (my $uniq = $path->uniq_path) {	1976	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1977	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1978	unless (aio_stat $uniq) {
		1979	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	1980	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1981	$self->_load_objects ($f);
		1982	$f->resolve_delayed_derefs;
		1983	}
1253	}	1984	}
1254	}	1985	}
1255		1986
1256	Coro::cede;	1987	$f->resolve_delayed_derefs;
1257		1988
		1989	cf::cede_to_tick;
1258	# now do the right thing for maps	1990	# now do the right thing for maps
1259	$self->link_multipart_objects;	1991	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1992	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1993	unless $self->difficulty;
		1994	cf::cede_to_tick;
		1995
		1996	unless ($self->{deny_activate}) {
		1997	$self->decay_objects;
		1998	$self->fix_auto_apply;
		1999	$self->update_buttons;
		2000	cf::cede_to_tick;
		2001	$self->set_darkness_map;
		2002	cf::cede_to_tick;
1271	$self->activate;	2003	$self->activate;
1272	}	2004	}
1273		2005
1274	Coro::cede;	2006	$self->{last_save} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
1275		2008
1276	$self->in_memory (cf::MAP_IN_MEMORY);	2009	$self->in_memory (cf::MAP_IN_MEMORY);
		2010	}
		2011
		2012	$self->post_load;
		2013	}
		2014
		2015	sub customise_for {
		2016	my ($self, $ob) = @_;
		2017
		2018	return find "~" . $ob->name . "/" . $self->{path}
		2019	if $self->per_player;
		2020
		2021	# return find "?party/" . $ob->name . "/" . $self->{path}
		2022	# if $self->per_party;
		2023
		2024	$self
		2025	}
		2026
		2027	# find and load all maps in the 3x3 area around a map
		2028	sub load_neighbours {
		2029	my ($map) = @_;
		2030
		2031	my @neigh; # diagonal neighbours
		2032
		2033	for (0 .. 3) {
		2034	my $neigh = $map->tile_path ($_)
		2035	or next;
		2036	$neigh = find $neigh, $map
		2037	or next;
		2038	$neigh->load;
		2039
		2040	push @neigh,
		2041	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2042	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2043	}
		2044
		2045	for (grep defined $_->[0], @neigh) {
		2046	my ($path, $origin) = @$_;
		2047	my $neigh = find $path, $origin
		2048	or next;
		2049	$neigh->load;
		2050	}
1277	}	2051	}
1278		2052
1279	sub find_sync {	2053	sub find_sync {
1280	my ($path, $origin) = @_;	2054	my ($path, $origin) = @_;
1281		2055
1282	cf::sync_job { cf::map::find $path, $origin }	2056	cf::sync_job { find $path, $origin }
1283	}	2057	}
1284		2058
1285	sub do_load_sync {	2059	sub do_load_sync {
1286	my ($map) = @_;	2060	my ($map) = @_;
1287		2061
		2062	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2063	if $Coro::current == $Coro::main;
		2064
1288	cf::sync_job { $map->load };	2065	cf::sync_job { $map->load };
		2066	}
		2067
		2068	our %MAP_PREFETCH;
		2069	our $MAP_PREFETCHER = undef;
		2070
		2071	sub find_async {
		2072	my ($path, $origin, $load) = @_;
		2073
		2074	$path = normalise $path, $origin && $origin->{path};
		2075
		2076	if (my $map = $cf::MAP{$path}) {
		2077	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2078	}
		2079
		2080	$MAP_PREFETCH{$path} |= $load;
		2081
		2082	$MAP_PREFETCHER ||= cf::async {
		2083	$Coro::current->{desc} = "map prefetcher";
		2084
		2085	while (%MAP_PREFETCH) {
		2086	while (my ($k, $v) = each %MAP_PREFETCH) {
		2087	if (my $map = find $k) {
		2088	$map->load if $v;
		2089	}
		2090
		2091	delete $MAP_PREFETCH{$k};
		2092	}
		2093	}
		2094	undef $MAP_PREFETCHER;
		2095	};
		2096	$MAP_PREFETCHER->prio (6);
		2097
		2098	()
1289	}	2099	}
1290		2100
1291	sub save {	2101	sub save {
1292	my ($self) = @_;	2102	my ($self) = @_;
1293		2103
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
1295		2105
1296	$self->{last_save} = $cf::RUNTIME;	2106	$self->{last_save} = $cf::RUNTIME;
1297		2107
1298	return unless $self->dirty;	2108	return unless $self->dirty;
1299		2109
1300	my $save = $self->{path}->save_path; utf8::encode $save;	2110	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2111	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		2112
1303	$self->{load_path} = $save;	2113	$self->{load_path} = $save;
1304		2114
1305	return if $self->{deny_save};	2115	return if $self->{deny_save};
1306		2116
1307	local $self->{last_access} = $self->last_access;#d#	2117	local $self->{last_access} = $self->last_access;#d#
1308		2118
		2119	cf::async {
		2120	$Coro::current->{desc} = "map player save";
		2121	$_->contr->save for $self->players;
		2122	};
		2123
1309	if ($uniq) {	2124	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2125	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	2126	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	2127	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2128	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	2129	}
1315	}	2130	}
1316		2131
1317	sub swap_out {	2132	sub swap_out {
1318	my ($self) = @_;	2133	my ($self) = @_;
1319		2134
1320	# save first because save cedes	2135	# save first because save cedes
1321	$self->save;	2136	$self->save;
1322		2137
1323	my $lock = cf::lock_acquire "map_data:" . $self->path;	2138	my $lock = cf::lock_acquire "map_data:$self->{path}";
1324		2139
1325	return if $self->players;	2140	return if $self->players;
1326	return if $self->in_memory != cf::MAP_IN_MEMORY;	2141	return if $self->in_memory != cf::MAP_IN_MEMORY;
1327	return if $self->{deny_save};	2142	return if $self->{deny_save};
1328		2143
		2144	$self->in_memory (cf::MAP_SWAPPED);
		2145
		2146	$self->deactivate;
		2147	$_->clear_links_to ($self) for values %cf::MAP;
1329	$self->clear;	2148	$self->clear;
1330	$self->in_memory (cf::MAP_SWAPPED);
1331	}	2149	}
1332		2150
1333	sub reset_at {	2151	sub reset_at {
1334	my ($self) = @_;	2152	my ($self) = @_;
1335		2153
1336	# TODO: safety, remove and allow resettable per-player maps	2154	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2155	return 1e99 if $self->{deny_reset};
1339		2156
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2157	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2158	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2159
…		…
1347	my ($self) = @_;	2164	my ($self) = @_;
1348		2165
1349	$self->reset_at <= $cf::RUNTIME	2166	$self->reset_at <= $cf::RUNTIME
1350	}	2167	}
1351		2168
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2169	sub reset {
1374	my ($self) = @_;	2170	my ($self) = @_;
1375		2171
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2173
1378	return if $self->players;	2174	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2175
1381	warn "resetting map ", $self->path;#d#	2176	warn "resetting map ", $self->path;
		2177
		2178	$self->in_memory (cf::MAP_SWAPPED);
		2179
		2180	# need to save uniques path
		2181	unless ($self->{deny_save}) {
		2182	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2183
		2184	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2185	if $uniq;
		2186	}
1382		2187
1383	delete $cf::MAP{$self->path};	2188	delete $cf::MAP{$self->path};
1384		2189
		2190	$self->deactivate;
1385	$_->clear_links_to ($self) for values %cf::MAP;	2191	$_->clear_links_to ($self) for values %cf::MAP;
		2192	$self->clear;
1386		2193
1387	$self->unlink_save;	2194	$self->unlink_save;
1388	$self->destroy;	2195	$self->destroy;
1389	}	2196	}
1390		2197
1391	my $nuke_counter = "aaaa";	2198	my $nuke_counter = "aaaa";
1392		2199
1393	sub nuke {	2200	sub nuke {
1394	my ($self) = @_;	2201	my ($self) = @_;
1395		2202
		2203	{
		2204	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2205
		2206	delete $cf::MAP{$self->path};
		2207
		2208	$self->unlink_save;
		2209
		2210	bless $self, "cf::map";
		2211	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2212	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2213	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2214	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2215
		2216	$cf::MAP{$self->path} = $self;
		2217	}
		2218
1399	$self->reset; # polite request, might not happen	2219	$self->reset; # polite request, might not happen
1400	}	2220	}
1401		2221
1402	sub customise_for {	2222	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2223
1405	if ($map->per_player) {	2224	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2225	maps. May block.
		2226
		2227	=cut
		2228
		2229	sub tmp_maps() {
1407	}	2230	[
1408		2231	map {
1409	$map	2232	utf8::decode $_;
		2233	/\.map$/
		2234	? normalise $_
		2235	: ()
		2236	} @{ aio_readdir $TMPDIR or [] }
		2237	]
1410	}	2238	}
1411		2239
1412	sub emergency_save {	2240	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2241
1415	warn "enter emergency map save\n";	2242	Returns an arrayref with all map paths of currently instantiated and saved
		2243	random maps. May block.
1416		2244
1417	cf::sync_job {	2245	=cut
1418	warn "begin emergency map save\n";
1419	$_->save for values %cf::MAP;
1420	};
1421		2246
1422	warn "end emergency map save\n";	2247	sub random_maps() {
		2248	[
		2249	map {
		2250	utf8::decode $_;
		2251	/\.map$/
		2252	? normalise "?random/$_"
		2253	: ()
		2254	} @{ aio_readdir $RANDOMDIR or [] }
		2255	]
		2256	}
		2257
		2258	=item cf::map::unique_maps
		2259
		2260	Returns an arrayref of paths of all shared maps that have
		2261	instantiated unique items. May block.
		2262
		2263	=cut
		2264
		2265	sub unique_maps() {
		2266	[
		2267	map {
		2268	utf8::decode $_;
		2269	/\.map$/
		2270	? normalise $_
		2271	: ()
		2272	} @{ aio_readdir $UNIQUEDIR or [] }
		2273	]
1423	}	2274	}
1424		2275
1425	package cf;	2276	package cf;
1426		2277
1427	=back	2278	=back
1428		2279
		2280	=head3 cf::object
		2281
		2282	=cut
		2283
		2284	package cf::object;
		2285
		2286	=over 4
		2287
		2288	=item $ob->inv_recursive
		2289
		2290	Returns the inventory of the object _and_ their inventories, recursively.
		2291
		2292	=cut
		2293
		2294	sub inv_recursive_;
		2295	sub inv_recursive_ {
		2296	map { $_, inv_recursive_ $_->inv } @_
		2297	}
		2298
		2299	sub inv_recursive {
		2300	inv_recursive_ inv $_[0]
		2301	}
		2302
		2303	=item $ref = $ob->ref
		2304
		2305	creates and returns a persistent reference to an objetc that can be stored as a string.
		2306
		2307	=item $ob = cf::object::deref ($refstring)
		2308
		2309	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2310	even if the object actually exists. May block.
		2311
		2312	=cut
		2313
		2314	sub deref {
		2315	my ($ref) = @_;
		2316
		2317	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2318	my ($uuid, $name) = ($1, $2);
		2319	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2320	or return;
		2321	$pl->ob->uuid eq $uuid
		2322	or return;
		2323
		2324	$pl->ob
		2325	} else {
		2326	warn "$ref: cannot resolve object reference\n";
		2327	undef
		2328	}
		2329	}
		2330
		2331	package cf;
		2332
		2333	=back
1429		2334
1430	=head3 cf::object::player	2335	=head3 cf::object::player
1431		2336
1432	=over 4	2337	=over 4
1433		2338
…		…
1447		2352
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2353	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2354
1450	if ($self->{record_replies}) {	2355	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2356	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2357
1452	} else {	2358	} else {
		2359	my $pl = $self->contr;
		2360
		2361	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2362	my $dialog = $pl->{npc_dialog};
		2363	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2364
		2365	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2366	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2367	$self->message ($msg, $flags);
		2368	}
1455	}	2369	}
		2370	}
		2371
		2372	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2373
		2374	=cut
		2375
		2376	sub cf::object::send_msg {
		2377	my $pl = shift->contr
		2378	or return;
		2379	$pl->send_msg (@_);
1456	}	2380	}
1457		2381
1458	=item $player_object->may ("access")	2382	=item $player_object->may ("access")
1459		2383
1460	Returns wether the given player is authorized to access resource "access"	2384	Returns wether the given player is authorized to access resource "access"
…		…
1473		2397
1474	=item $player_object->enter_link	2398	=item $player_object->enter_link
1475		2399
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2400	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2401
1478	The player should be reaosnably safe there for short amounts of time. You	2402	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	2403	I<MUST> call C<leave_link> as soon as possible, though.
1480		2404
		2405	Will never block.
		2406
1481	=item $player_object->leave_link ($map, $x, $y)	2407	=item $player_object->leave_link ($map, $x, $y)
1482		2408
1483	Moves the player out of the specila link map onto the given map. If the	2409	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2410	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2411	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2412	fails, to the emergency map position.
1487		2413
1488	Might block.	2414	Might block.
1489		2415
1490	=cut	2416	=cut
		2417
		2418	sub link_map {
		2419	unless ($LINK_MAP) {
		2420	$LINK_MAP = cf::map::find "{link}"
		2421	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2422	$LINK_MAP->load;
		2423	}
		2424
		2425	$LINK_MAP
		2426	}
1491		2427
1492	sub cf::object::player::enter_link {	2428	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2429	my ($self) = @_;
1494		2430
1495	$self->deactivate_recursive;	2431	$self->deactivate_recursive;
1496		2432
1497	return if $self->map == $LINK_MAP;	2433	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2434
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2435	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2436	if $self->map && $self->map->{path} ne "{link}";
1501		2437
1502	$self->enter_map ($LINK_MAP, 20, 20);	2438	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	2439	}
1504		2440
1505	sub cf::object::player::leave_link {	2441	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2442	my ($self, $map, $x, $y) = @_;
		2443
		2444	return unless $self->contr->active;
1507		2445
1508	my $link_pos = delete $self->{_link_pos};	2446	my $link_pos = delete $self->{_link_pos};
1509		2447
1510	unless ($map) {	2448	unless ($map) {
1511	# restore original map position	2449	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2463	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2464	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2465	if $x <=0 && $y <= 0;
1528		2466
1529	$map->load;	2467	$map->load;
		2468	$map->load_neighbours;
1530		2469
		2470	return unless $self->contr->active;
1531	$self->activate_recursive;	2471	$self->activate_recursive;
		2472
		2473	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2474	$self->enter_map ($map, $x, $y);
1533	}	2475	}
1534		2476
1535	cf::player->attach (	2477	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1536	on_logout => sub {
1537	my ($pl) = @_;
1538		2478
1539	# abort map switching before logout	2479	Moves the player to the given map-path and coordinates by first freezing
1540	if ($pl->ob->{_link_pos}) {	2480	her, loading and preparing them map, calling the provided $check callback
1541	cf::sync_job {	2481	that has to return the map if sucecssful, and then unfreezes the player on
1542	$pl->ob->leave_link	2482	the new (success) or old (failed) map position. In either case, $done will
1543	};	2483	be called at the end of this process.
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2484
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)
1569
1570	=cut	2485	=cut
		2486
		2487	our $GOTOGEN;
1571		2488
1572	sub cf::object::player::goto {	2489	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2490	my ($self, $path, $x, $y, $check, $done) = @_;
		2491
		2492	# do generation counting so two concurrent goto's will be executed in-order
		2493	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2494
1575	$self->enter_link;	2495	$self->enter_link;
1576		2496
1577	(async {	2497	(async {
1578	$path = new cf::path $path;	2498	$Coro::current->{desc} = "player::goto $path $x $y";
1579		2499
1580	my $map = cf::map::find $path->as_string;	2500	# *tag paths override both path and x|y
		2501	if ($path =~ /^\*(.*)$/) {
		2502	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2503	my $ob = $obs[rand @obs];
		2504
		2505	# see if we actually can go there
		2506	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2507	$ob = $obs[rand @obs];
		2508	} else {
		2509	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2510	}
		2511	# else put us there anyways for now #d#
		2512
		2513	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2514	} else {
		2515	($path, $x, $y) = (undef, undef, undef);
		2516	}
		2517	}
		2518
		2519	my $map = eval {
		2520	my $map = defined $path ? cf::map::find $path : undef;
		2521
		2522	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2523	$map = $map->customise_for ($self);
1582		2524	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2525	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2526	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2527	}
1587		2528
		2529	$map
		2530	};
		2531
		2532	if ($@) {
		2533	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2534	LOG llevError | logBacktrace, Carp::longmess $@;
		2535	}
		2536
		2537	if ($gen == $self->{_goto_generation}) {
		2538	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2539	$self->leave_link ($map, $x, $y);
		2540	}
		2541
		2542	$done->() if $done;
1589	})->prio (1);	2543	})->prio (1);
1590	}	2544	}
1591		2545
1592	=item $player_object->enter_exit ($exit_object)	2546	=item $player_object->enter_exit ($exit_object)
1593		2547
…		…
1595		2549
1596	sub parse_random_map_params {	2550	sub parse_random_map_params {
1597	my ($spec) = @_;	2551	my ($spec) = @_;
1598		2552
1599	my $rmp = { # defaults	2553	my $rmp = { # defaults
1600	xsize => 10,	2554	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2555	ysize => (cf::rndm 15, 40),
		2556	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2557	#layout => string,
1602	};	2558	};
1603		2559
1604	for (split /\n/, $spec) {	2560	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2561	my ($k, $v) = split /\s+/, $_, 2;
1606		2562
…		…
1610	$rmp	2566	$rmp
1611	}	2567	}
1612		2568
1613	sub prepare_random_map {	2569	sub prepare_random_map {
1614	my ($exit) = @_;	2570	my ($exit) = @_;
		2571
		2572	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2573
1616	# all this does is basically replace the /! path by	2574	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2575	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2576	# that depends on the exit object
1619		2577
1620	my $rmp = parse_random_map_params $exit->msg;	2578	my $rmp = parse_random_map_params $exit->msg;
1621		2579
1622	if ($exit->map) {	2580	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2581	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2582	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2583	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2584	$rmp->{origin_y} = $exit->y;
1627	}	2585	}
1628		2586
1629	$rmp->{random_seed} ||= $exit->random_seed;	2587	$rmp->{random_seed} ||= $exit->random_seed;
1630		2588
1631	my $data = cf::to_json $rmp;	2589	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2590	my $md5 = Digest::MD5::md5_hex $data;
		2591	my $meta = "$RANDOMDIR/$md5.meta";
1633		2592
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2593	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2594	aio_write $fh, 0, (length $data), $data, 0;
		2595	undef $fh;
		2596	aio_rename "$meta~", $meta;
1636		2597
1637	$exit->slaying ("?random/$md5");	2598	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2599	$exit->msg (undef);
1639	}	2600	}
1640	}	2601	}
…		…
1642	sub cf::object::player::enter_exit {	2603	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2604	my ($self, $exit) = @_;
1644		2605
1645	return unless $self->type == cf::PLAYER;	2606	return unless $self->type == cf::PLAYER;
1646		2607
		2608	if ($exit->slaying eq "/!") {
		2609	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2610	# the problem is that $exit might not survive long enough
		2611	# so it needs to be done right now, right here
		2612	cf::sync_job { prepare_random_map $exit };
		2613	}
		2614
		2615	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2616	my $hp = $exit->stats->hp;
		2617	my $sp = $exit->stats->sp;
		2618
1647	$self->enter_link;	2619	$self->enter_link;
1648		2620
		2621	# if exit is damned, update players death & WoR home-position
		2622	$self->contr->savebed ($slaying, $hp, $sp)
		2623	if $exit->flag (FLAG_DAMNED);
		2624
1649	(async {	2625	(async {
		2626	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2627
1650	$self->deactivate_recursive; # just to be sure	2628	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2629	unless (eval {
1652	prepare_random_map $exit	2630	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2631
1658	1;	2632	1;
1659	}) {	2633	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2634	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2635	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2636	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2637	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2638
1665	warn "ERROR in enter_exit: $@";	2639	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2640	$self->leave_link;
1667	}	2641	}
1668	})->prio (1);	2642	})->prio (1);
…		…
1681		2655
1682	sub cf::client::send_drawinfo {	2656	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2657	my ($self, $text, $flags) = @_;
1684		2658
1685	utf8::encode $text;	2659	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2660	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2661	}
1688		2662
		2663	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2664
		2665	Send a drawinfo or msg packet to the client, formatting the msg for the
		2666	client if neccessary. C<$type> should be a string identifying the type of
		2667	the message, with C<log> being the default. If C<$color> is negative, suppress
		2668	the message unless the client supports the msg packet.
		2669
		2670	=cut
		2671
		2672	our %CHANNEL = (
		2673	"c/identify" => {
		2674	id => "infobox",
		2675	title => "Identify",
		2676	reply => undef,
		2677	tooltip => "Items recently identified",
		2678	},
		2679	"c/examine" => {
		2680	id => "infobox",
		2681	title => "Examine",
		2682	reply => undef,
		2683	tooltip => "Signs and other items you examined",
		2684	},
		2685	"c/lookat" => {
		2686	id => "infobox",
		2687	title => "Look",
		2688	reply => undef,
		2689	tooltip => "What you saw there",
		2690	},
		2691	);
		2692
		2693	sub cf::client::send_msg {
		2694	my ($self, $channel, $msg, $color, @extra) = @_;
		2695
		2696	$msg = $self->pl->expand_cfpod ($msg);
		2697
		2698	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2699
		2700	# check predefined channels, for the benefit of C
		2701	if ($CHANNEL{$channel}) {
		2702	$channel = $CHANNEL{$channel};
		2703
		2704	$self->ext_msg (channel_info => $channel)
		2705	if $self->can_msg;
		2706
		2707	$channel = $channel->{id};
		2708
		2709	} elsif (ref $channel) {
		2710	# send meta info to client, if not yet sent
		2711	unless (exists $self->{channel}{$channel->{id}}) {
		2712	$self->{channel}{$channel->{id}} = $channel;
		2713	$self->ext_msg (channel_info => $channel)
		2714	if $self->can_msg;
		2715	}
		2716
		2717	$channel = $channel->{id};
		2718	}
		2719
		2720	return unless @extra || length $msg;
		2721
		2722	if ($self->can_msg) {
		2723	# default colour, mask it out
		2724	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2725	if $color & cf::NDI_DEF;
		2726
		2727	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2728	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2729	} else {
		2730	if ($color >= 0) {
		2731	# replace some tags by gcfclient-compatible ones
		2732	for ($msg) {
		2733	1 while
		2734	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2735	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2736	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2737	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2738	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2739	}
		2740
		2741	$color &= cf::NDI_COLOR_MASK;
		2742
		2743	utf8::encode $msg;
		2744
		2745	if (0 && $msg =~ /\[/) {
		2746	# COMMAND/INFO
		2747	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2748	} else {
		2749	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2750	$self->send_packet ("drawinfo $color $msg")
		2751	}
		2752	}
		2753	}
		2754	}
		2755
		2756	=item $client->ext_msg ($type, @msg)
		2757
		2758	Sends an ext event to the client.
		2759
		2760	=cut
		2761
		2762	sub cf::client::ext_msg($$@) {
		2763	my ($self, $type, @msg) = @_;
		2764
		2765	if ($self->extcmd == 2) {
		2766	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2767	} elsif ($self->extcmd == 1) { # TODO: remove
		2768	push @msg, msgtype => "event_$type";
		2769	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2770	}
		2771	}
		2772
		2773	=item $client->ext_reply ($msgid, @msg)
		2774
		2775	Sends an ext reply to the client.
		2776
		2777	=cut
		2778
		2779	sub cf::client::ext_reply($$@) {
		2780	my ($self, $id, @msg) = @_;
		2781
		2782	if ($self->extcmd == 2) {
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2784	} elsif ($self->extcmd == 1) {
		2785	#TODO: version 1, remove
		2786	unshift @msg, msgtype => "reply", msgid => $id;
		2787	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2788	}
		2789	}
1689		2790
1690	=item $success = $client->query ($flags, "text", \&cb)	2791	=item $success = $client->query ($flags, "text", \&cb)
1691		2792
1692	Queues a query to the client, calling the given callback with	2793	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2794	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2795	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2796
1696	Queries can fail, so check the return code. Or don't, as queries will become	2797	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2798	become reliable at some point in the future.
1698		2799
1699	=cut	2800	=cut
1700		2801
1701	sub cf::client::query {	2802	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2803	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2811	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2812	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2813
1713	$self->send_packet ($self->{query_queue}[0][0])	2814	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2815	if @{ $self->{query_queue} } == 1;
		2816
		2817	1
1715	}	2818	}
1716		2819
1717	cf::client->attach (	2820	cf::client->attach (
		2821	on_connect => sub {
		2822	my ($ns) = @_;
		2823
		2824	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2825	},
1718	on_reply => sub {	2826	on_reply => sub {
1719	my ($ns, $msg) = @_;	2827	my ($ns, $msg) = @_;
1720		2828
1721	# this weird shuffling is so that direct followup queries	2829	# this weird shuffling is so that direct followup queries
1722	# get handled first	2830	# get handled first
1723	my $queue = delete $ns->{query_queue}	2831	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2832	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2833
1726	(shift @$queue)->[1]->($msg);	2834	(shift @$queue)->[1]->($msg);
		2835	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2836
1728	push @{ $ns->{query_queue} }, @$queue;	2837	push @{ $ns->{query_queue} }, @$queue;
1729		2838
1730	if (@{ $ns->{query_queue} } == @$queue) {	2839	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2840	if (@$queue) {
…		…
1733	} else {	2842	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2843	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2844	}
1736	}	2845	}
1737	},	2846	},
		2847	on_exticmd => sub {
		2848	my ($ns, $buf) = @_;
		2849
		2850	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2851
		2852	if (ref $msg) {
		2853	my ($type, $reply, @payload) =
		2854	"ARRAY" eq ref $msg
		2855	? @$msg
		2856	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2857
		2858	my @reply;
		2859
		2860	if (my $cb = $EXTICMD{$type}) {
		2861	@reply = $cb->($ns, @payload);
		2862	}
		2863
		2864	$ns->ext_reply ($reply, @reply)
		2865	if $reply;
		2866
		2867	} else {
		2868	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2869	}
		2870
		2871	cf::override;
		2872	},
1738	);	2873	);
1739		2874
1740	=item $client->async (\&cb)	2875	=item $client->async (\&cb)
1741		2876
1742	Create a new coroutine, running the specified callback. The coroutine will	2877	Create a new coroutine, running the specified callback. The coroutine will
…		…
1783	our $safe = new Safe "safe";	2918	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	2919	our $safe_hole = new Safe::Hole;
1785		2920
1786	$SIG{FPE} = 'IGNORE';	2921	$SIG{FPE} = 'IGNORE';
1787		2922
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2923	$safe->permit_only (Opcode::opset qw(
		2924	:base_core :base_mem :base_orig :base_math
		2925	grepstart grepwhile mapstart mapwhile
		2926	sort time
		2927	));
1789		2928
1790	# here we export the classes and methods available to script code	2929	# here we export the classes and methods available to script code
1791		2930
1792	=pod	2931	=pod
1793		2932
1794	The following fucntions and emthods are available within a safe environment:	2933	The following functions and methods are available within a safe environment:
1795		2934
1796	cf::object contr pay_amount pay_player map	2935	cf::object
		2936	contr pay_amount pay_player map x y force_find force_add destroy
		2937	insert remove name archname title slaying race decrease_ob_nr
		2938
1797	cf::object::player player	2939	cf::object::player
1798	cf::player peaceful	2940	player
1799	cf::map trigger	2941
		2942	cf::player
		2943	peaceful
		2944
		2945	cf::map
		2946	trigger
1800		2947
1801	=cut	2948	=cut
1802		2949
1803	for (	2950	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	2951	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2952	insert remove inv name archname title slaying race
		2953	decrease_ob_nr destroy)],
1805	["cf::object::player" => qw(player)],	2954	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	2955	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	2956	["cf::map" => qw(trigger)],
1808	) {	2957	) {
1809	no strict 'refs';	2958	no strict 'refs';
…		…
1880	=back	3029	=back
1881		3030
1882	=cut	3031	=cut
1883		3032
1884	#############################################################################	3033	#############################################################################
		3034	# the server's init and main functions
1885		3035
1886	=head2 EXTENSION DATABASE SUPPORT	3036	sub load_facedata($) {
		3037	my ($path) = @_;
1887		3038
1888	Crossfire maintains a very simple database for extension use. It can	3039	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3040	# for this (global event?)
1890	excludes objects.	3041	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3042
1892	The parameter C<$family> should best start with the name of the extension	3043	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3044
1895	=over 4	3045	warn "loading facedata from $path\n";
1896		3046
1897	=item $hashref = cf::db_get $family	3047	my $facedata;
		3048	0 < aio_load $path, $facedata
		3049	or die "$path: $!";
1898		3050
1899	Return a hashref for use by the extension C<$family>, which can be	3051	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3052
1903	=item $value = cf::db_get $family => $key	3053	$facedata->{version} == 2
		3054	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3055
1905	Returns a single value from the database	3056	# patch in the exptable
1906		3057	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3058	type => FT_RSRC,
1908		3059	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3060	};
		3061	cf::cede_to_tick;
1958		3062
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3063	{
		3064	my $faces = $facedata->{faceinfo};
1963		3065
1964	sub db_get($;$) {	3066	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3067	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}	3068	cf::face::set_visibility $idx, $info->{visibility};
1967	: ($DB->{$_[0]} ||= { })	3069	cf::face::set_magicmap $idx, $info->{magicmap};
1968	}	3070	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3071	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1969		3072
1970	sub db_put($$;$) {	3073	cf::cede_to_tick;
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3074	}
1984	);
1985	}
1986		3075
1987	#############################################################################	3076	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3077	next unless $info->{smooth};
		3078	my $idx = cf::face::find $face
		3079	or next;
		3080	if (my $smooth = cf::face::find $info->{smooth}) {
		3081	cf::face::set_smooth $idx, $smooth;
		3082	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3083	} else {
		3084	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3085	}
1989		3086
1990	sub cfg_load {	3087	cf::cede_to_tick;
		3088	}
		3089	}
		3090
		3091	{
		3092	my $anims = $facedata->{animinfo};
		3093
		3094	while (my ($anim, $info) = each %$anims) {
		3095	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3096	cf::cede_to_tick;
		3097	}
		3098
		3099	cf::anim::invalidate_all; # d'oh
		3100	}
		3101
		3102	{
		3103	# TODO: for gcfclient pleasure, we should give resources
		3104	# that gcfclient doesn't grok a >10000 face index.
		3105	my $res = $facedata->{resource};
		3106
		3107	my $soundconf = delete $res->{"res/sound.conf"};
		3108
		3109	while (my ($name, $info) = each %$res) {
		3110	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3111	my $data;
		3112
		3113	if ($info->{type} & 1) {
		3114	# prepend meta info
		3115
		3116	my $meta = $enc->encode ({
		3117	name => $name,
		3118	%{ $info->{meta} || {} },
		3119	});
		3120
		3121	$data = pack "(w/a*)*", $meta, $info->{data};
		3122	} else {
		3123	$data = $info->{data};
		3124	}
		3125
		3126	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3127	cf::face::set_type $idx, $info->{type};
		3128
		3129	cf::cede_to_tick;
		3130	}
		3131
		3132	if ($soundconf) {
		3133	$soundconf = $enc->decode (delete $soundconf->{data});
		3134
		3135	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3136	my $sound = $soundconf->{compat}[$_]
		3137	or next;
		3138
		3139	my $face = cf::face::find "sound/$sound->[1]";
		3140	cf::sound::set $sound->[0] => $face;
		3141	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3142	}
		3143
		3144	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3145	my $face = cf::face::find "sound/$v";
		3146	cf::sound::set $k => $face;
		3147	}
		3148	}
		3149	}
		3150
		3151	1
		3152	}
		3153
		3154	register_exticmd fx_want => sub {
		3155	my ($ns, $want) = @_;
		3156
		3157	while (my ($k, $v) = each %$want) {
		3158	$ns->fx_want ($k, $v);
		3159	}
		3160	};
		3161
		3162	sub reload_regions {
		3163	# HACK to clear player env face cache, we need some signal framework
		3164	# for this (global event?)
		3165	%ext::player_env::MUSIC_FACE_CACHE = ();
		3166
		3167	load_resource_file "$MAPDIR/regions"
		3168	or die "unable to load regions file\n";
		3169
		3170	for (cf::region::list) {
		3171	$_->{match} = qr/$_->{match}/
		3172	if exists $_->{match};
		3173	}
		3174	}
		3175
		3176	sub reload_facedata {
		3177	load_facedata "$DATADIR/facedata"
		3178	or die "unable to load facedata\n";
		3179	}
		3180
		3181	sub reload_archetypes {
		3182	load_resource_file "$DATADIR/archetypes"
		3183	or die "unable to load archetypes\n";
		3184	#d# NEED to laod twice to resolve forward references
		3185	# this really needs to be done in an extra post-pass
		3186	# (which needs to be synchronous, so solve it differently)
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	}
		3190
		3191	sub reload_treasures {
		3192	load_resource_file "$DATADIR/treasures"
		3193	or die "unable to load treasurelists\n";
		3194	}
		3195
		3196	sub reload_resources {
		3197	warn "reloading resource files...\n";
		3198
		3199	reload_regions;
		3200	reload_facedata;
		3201	#reload_archetypes;#d#
		3202	reload_archetypes;
		3203	reload_treasures;
		3204
		3205	warn "finished reloading resource files\n";
		3206	}
		3207
		3208	sub init {
		3209	reload_resources;
		3210	}
		3211
		3212	sub reload_config {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3213	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3214	or return;
1993		3215
1994	local $/;	3216	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3217	*CFG = YAML::Syck::Load <$fh>;
1996		3218
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		3223
2002	if (exists $CFG{mlockall}) {	3224	if (exists $CFG{mlockall}) {
2003	eval {	3225	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	3226	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	3227	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	3228	};
2007	warn $@ if $@;	3229	warn $@ if $@;
2008	}	3230	}
2009	}	3231	}
2010		3232
2011	sub main {	3233	sub main {
2012	# we must not ever block the main coroutine	3234	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	3235	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3237	(async {
		3238	$Coro::current->{desc} = "IDLE BUG HANDLER";
2015	async { Event::one_event };	3239	Event::one_event;
		3240	})->prio (Coro::PRIO_MAX);
2016	};	3241	};
2017		3242
2018	cfg_load;	3243	reload_config;
2019	db_load;	3244	db_init;
2020	load_extensions;	3245	load_extensions;
		3246
		3247	$TICK_WATCHER->start;
2021	Event::loop;	3248	Event::loop;
2022	}	3249	}
2023		3250
2024	#############################################################################	3251	#############################################################################
2025	# initialisation	3252	# initialisation and cleanup
2026		3253
		3254	# install some emergency cleanup handlers
		3255	BEGIN {
		3256	for my $signal (qw(INT HUP TERM)) {
		3257	Event->signal (
		3258	reentrant => 0,
		3259	data => WF_AUTOCANCEL,
		3260	signal => $signal,
		3261	prio => 0,
		3262	cb => sub {
		3263	cf::cleanup "SIG$signal";
		3264	},
		3265	);
		3266	}
		3267	}
		3268
		3269	sub write_runtime {
		3270	my $runtime = "$LOCALDIR/runtime";
		3271
		3272	# first touch the runtime file to show we are still running:
		3273	# the fsync below can take a very very long time.
		3274
		3275	IO::AIO::aio_utime $runtime, undef, undef;
		3276
		3277	my $guard = cf::lock_acquire "write_runtime";
		3278
		3279	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3280	or return;
		3281
		3282	my $value = $cf::RUNTIME + 90 + 10;
		3283	# 10 is the runtime save interval, for a monotonic clock
		3284	# 60 allows for the watchdog to kill the server.
		3285
		3286	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3287	and return;
		3288
		3289	# always fsync - this file is important
		3290	aio_fsync $fh
		3291	and return;
		3292
		3293	# touch it again to show we are up-to-date
		3294	aio_utime $fh, undef, undef;
		3295
		3296	close $fh
		3297	or return;
		3298
		3299	aio_rename "$runtime~", $runtime
		3300	and return;
		3301
		3302	warn "runtime file written.\n";
		3303
		3304	1
		3305	}
		3306
		3307	sub emergency_save() {
		3308	my $freeze_guard = cf::freeze_mainloop;
		3309
		3310	warn "enter emergency perl save\n";
		3311
		3312	cf::sync_job {
		3313	# use a peculiar iteration method to avoid tripping on perl
		3314	# refcount bugs in for. also avoids problems with players
		3315	# and maps saved/destroyed asynchronously.
		3316	warn "begin emergency player save\n";
		3317	for my $login (keys %cf::PLAYER) {
		3318	my $pl = $cf::PLAYER{$login} or next;
		3319	$pl->valid or next;
		3320	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3321	$pl->save;
		3322	}
		3323	warn "end emergency player save\n";
		3324
		3325	warn "begin emergency map save\n";
		3326	for my $path (keys %cf::MAP) {
		3327	my $map = $cf::MAP{$path} or next;
		3328	$map->valid or next;
		3329	$map->save;
		3330	}
		3331	warn "end emergency map save\n";
		3332
		3333	warn "begin emergency database checkpoint\n";
		3334	BDB::db_env_txn_checkpoint $DB_ENV;
		3335	warn "end emergency database checkpoint\n";
		3336	};
		3337
		3338	warn "leave emergency perl save\n";
		3339	}
		3340
		3341	sub post_cleanup {
		3342	my ($make_core) = @_;
		3343
		3344	warn Carp::longmess "post_cleanup backtrace"
		3345	if $make_core;
		3346	}
		3347
2027	sub reload() {	3348	sub do_reload_perl() {
2028	# can/must only be called in main	3349	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3350	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	3351	warn "can only reload from main coroutine";
2031	return;	3352	return;
2032	}	3353	}
2033		3354
2034	warn "reloading...";	3355	warn "reloading...";
2035		3356
2036	my $guard = freeze_mainloop;	3357	warn "entering sync_job";
		3358
		3359	cf::sync_job {
		3360	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	3361	cf::emergency_save;
		3362	cf::write_runtime; # external watchdog should not bark
2038		3363
2039	eval {	3364	warn "syncing database to disk";
		3365	BDB::db_env_txn_checkpoint $DB_ENV;
		3366
2040	# if anything goes wrong in here, we should simply crash as we already saved	3367	# if anything goes wrong in here, we should simply crash as we already saved
2041		3368
2042	# cancel all watchers	3369	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	3370	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	3371	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	3372	}
2046		3373
		3374	warn "flushing outstanding aio requests";
		3375	for (;;) {
		3376	BDB::flush;
		3377	IO::AIO::flush;
		3378	Coro::cede_notself;
		3379	last unless IO::AIO::nreqs || BDB::nreqs;
		3380	warn "iterate...";
		3381	}
		3382
		3383	++$RELOAD;
		3384
2047	# cancel all extension coros	3385	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3386	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3387	%EXT_CORO = ();
2050		3388
2051	# unload all extensions	3389	warn "removing commands";
2052	for (@exts) {	3390	%COMMAND = ();
		3391
		3392	warn "removing ext/exti commands";
		3393	%EXTCMD = ();
		3394	%EXTICMD = ();
		3395
		3396	warn "unloading/nuking all extensions";
		3397	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	3398	warn "... unloading $pkg";
2054	unload_extension $_;	3399
		3400	if (my $cb = $pkg->can ("unload")) {
		3401	eval {
		3402	$cb->($pkg);
		3403	1
		3404	} or warn "$pkg unloaded, but with errors: $@";
2055	}	3405	}
2056		3406
		3407	warn "... nuking $pkg";
		3408	Symbol::delete_package $pkg;
		3409	}
		3410
2057	# unload all modules loaded from $LIBDIR	3411	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	3412	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3413	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		3414
2061	warn "removing <$k>";	3415	warn "... unloading $k";
2062	delete $INC{$k};	3416	delete $INC{$k};
2063		3417
2064	$k =~ s/\.pm$//;	3418	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	3419	$k =~ s/\//::/g;
2066		3420
…		…
2069	}	3423	}
2070		3424
2071	Symbol::delete_package $k;	3425	Symbol::delete_package $k;
2072	}	3426	}
2073		3427
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3428	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3429	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3430	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		3431
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	3432	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	3433	delete $INC{"cf.pm"};
		3434	delete $INC{"cf/pod.pm"};
2087		3435
2088	# don't, removes xs symbols, too,	3436	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3437	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3438	#Symbol::delete_package __PACKAGE__;
2091		3439
2092	# reload cf.pm	3440	warn "unload completed, starting to reload now";
		3441
2093	warn "reloading cf.pm";	3442	warn "reloading cf.pm";
2094	require cf;	3443	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		3445
2097	# load config and database again	3446	warn "loading config and database again";
2098	cf::cfg_load;	3447	cf::reload_config;
2099	cf::db_load;
2100		3448
2101	# load extensions
2102	warn "load extensions";	3449	warn "loading extensions";
2103	cf::load_extensions;	3450	cf::load_extensions;
2104		3451
2105	# reattach attachments to objects	3452	warn "reattaching attachments to objects/players";
2106	warn "reattach";	3453	_global_reattach; # objects, sockets
2107	_global_reattach;	3454	warn "reattaching attachments to maps";
2108	};	3455	reattach $_ for values %MAP;
		3456	warn "reattaching attachments to players";
		3457	reattach $_ for values %PLAYER;
2109		3458
2110	if ($@) {	3459	warn "leaving sync_job";
		3460
		3461	1
		3462	} or do {
2111	warn $@;	3463	warn $@;
2112	warn "error while reloading, exiting.";	3464	warn "error while reloading, exiting.";
2113	exit 1;	3465	exit 1;
2114	}	3466	};
2115		3467
2116	warn "reloaded successfully";	3468	warn "reloaded";
2117	};	3469	};
2118		3470
2119	#############################################################################	3471	our $RELOAD_WATCHER; # used only during reload
2120		3472
2121	unless ($LINK_MAP) {	3473	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	3474	# doing reload synchronously and two reloads happen back-to-back,
		3475	# coro crashes during coro_state_free->destroy here.
2123		3476
2124	$LINK_MAP->width (41);	3477	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	3478	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,	3479	after => 0,
		3480	data => WF_AUTOCANCEL,
2134	cb => sub {	3481	cb => sub {
2135	$_[0]->w->cancel;	3482	do_reload_perl;
2136		3483	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	3484	},
2155		3485	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	3486	}
2161
2162	register "<global>", __PACKAGE__;
2163		3487
2164	register_command "reload" => sub {	3488	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3489	my ($who, $arg) = @_;
2166		3490
2167	if ($who->flag (FLAG_WIZ)) {	3491	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3492	$who->message ("reloading server.");
		3493	async {
		3494	$Coro::current->{desc} = "perl_reload";
		3495	reload_perl;
		3496	};
2171	}	3497	}
2172	};	3498	};
2173		3499
2174	unshift @INC, $LIBDIR;	3500	unshift @INC, $LIBDIR;
		3501
		3502	my $bug_warning = 0;
		3503
		3504	our @WAIT_FOR_TICK;
		3505	our @WAIT_FOR_TICK_BEGIN;
		3506
		3507	sub wait_for_tick {
		3508	return unless $TICK_WATCHER->is_active;
		3509	return if $Coro::current == $Coro::main;
		3510
		3511	my $signal = new Coro::Signal;
		3512	push @WAIT_FOR_TICK, $signal;
		3513	$signal->wait;
		3514	}
		3515
		3516	sub wait_for_tick_begin {
		3517	return unless $TICK_WATCHER->is_active;
		3518	return if $Coro::current == $Coro::main;
		3519
		3520	my $signal = new Coro::Signal;
		3521	push @WAIT_FOR_TICK_BEGIN, $signal;
		3522	$signal->wait;
		3523	}
2175		3524
2176	$TICK_WATCHER = Event->timer (	3525	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	3526	reentrant => 0,
		3527	parked => 1,
2178	prio => 0,	3528	prio => 0,
2179	at => $NEXT_TICK || $TICK,	3529	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	3530	data => WF_AUTOCANCEL,
2181	cb => sub {	3531	cb => sub {
		3532	if ($Coro::current != $Coro::main) {
		3533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3534	unless ++$bug_warning > 10;
		3535	return;
		3536	}
		3537
		3538	$NOW = $tick_start = Event::time;
		3539
2182	cf::server_tick; # one server iteration	3540	cf::server_tick; # one server iteration
		3541
2183	$RUNTIME += $TICK;	3542	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	3543	$NEXT_TICK += $TICK;
2185		3544
		3545	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3546	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3547	Coro::async_pool {
		3548	$Coro::current->{desc} = "runtime saver";
		3549	write_runtime
		3550	or warn "ERROR: unable to write runtime file: $!";
		3551	};
		3552	}
		3553
		3554	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3555	$sig->send;
		3556	}
		3557	while (my $sig = shift @WAIT_FOR_TICK) {
		3558	$sig->send;
		3559	}
		3560
		3561	$NOW = Event::time;
		3562
2186	# if we are delayed by four ticks or more, skip them all	3563	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3564	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		3565
2189	$TICK_WATCHER->at ($NEXT_TICK);	3566	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	3567	$TICK_WATCHER->start;
		3568
		3569	$LOAD = ($NOW - $tick_start) / $TICK;
		3570	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3571
		3572	_post_tick;
2191	},	3573	},
2192	);	3574	);
2193		3575
		3576	{
		3577	BDB::min_parallel 8;
2194	IO::AIO::max_poll_time $TICK * 0.2;	3578	BDB::max_poll_time $TICK * 0.1;
2195		3579	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	3580	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	3581	fd => BDB::poll_fileno,
2198	poll => 'r',	3582	poll => 'r',
2199	prio => 5,	3583	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	3584	data => WF_AUTOCANCEL,
		3585	cb => \&BDB::poll_cb,
		3586	);
		3587
		3588	BDB::set_sync_prepare {
		3589	my $status;
		3590	my $current = $Coro::current;
		3591	(
		3592	sub {
		3593	$status = $!;
		3594	$current->ready; undef $current;
		3595	},
		3596	sub {
		3597	Coro::schedule while defined $current;
		3598	$! = $status;
		3599	},
		3600	)
		3601	};
		3602
		3603	unless ($DB_ENV) {
		3604	$DB_ENV = BDB::db_env_create;
		3605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3606	| BDB::LOG_AUTOREMOVE, 1);
		3607	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3608	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3609
		3610	cf::sync_job {
		3611	eval {
		3612	BDB::db_env_open
		3613	$DB_ENV,
		3614	$BDBDIR,
		3615	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3616	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3617	0666;
		3618
		3619	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3620	};
		3621
		3622	cf::cleanup "db_env_open(db): $@" if $@;
		3623	};
		3624	}
		3625
		3626	$BDB_DEADLOCK_WATCHER = Event->timer (
2206	after => 0,	3627	after => 3,
2207	interval => 10,	3628	interval => 1,
		3629	hard => 1,
		3630	prio => 0,
		3631	data => WF_AUTOCANCEL,
2208	cb => sub {	3632	cb => sub {
2209	(Coro::unblock_sub {	3633	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2210	write_runtime	3634	},
2211	or warn "ERROR: unable to write runtime file: $!";	3635	);
		3636	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3637	after => 11,
		3638	interval => 60,
		3639	hard => 1,
		3640	prio => 0,
		3641	data => WF_AUTOCANCEL,
		3642	cb => sub {
		3643	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3644	},
		3645	);
		3646	$BDB_TRICKLE_WATCHER = Event->timer (
		3647	after => 5,
		3648	interval => 10,
		3649	hard => 1,
		3650	prio => 0,
		3651	data => WF_AUTOCANCEL,
		3652	cb => sub {
		3653	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3654	},
		3655	);
		3656	}
		3657
		3658	{
		3659	IO::AIO::min_parallel 8;
		3660
		3661	undef $Coro::AIO::WATCHER;
		3662	IO::AIO::max_poll_time $TICK * 0.1;
		3663	$AIO_POLL_WATCHER = Event->io (
		3664	reentrant => 0,
		3665	data => WF_AUTOCANCEL,
		3666	fd => IO::AIO::poll_fileno,
		3667	poll => 'r',
		3668	prio => 0,
		3669	cb => \&IO::AIO::poll_cb,
		3670	);
		3671	}
		3672
		3673	my $_log_backtrace;
		3674
		3675	sub _log_backtrace {
		3676	my ($msg, @addr) = @_;
		3677
		3678	$msg =~ s/\n//;
		3679
		3680	# limit the # of concurrent backtraces
		3681	if ($_log_backtrace < 2) {
		3682	++$_log_backtrace;
		3683	async {
		3684	$Coro::current->{desc} = "abt $msg";
		3685
		3686	my @bt = fork_call {
		3687	@addr = map { sprintf "%x", $_ } @addr;
		3688	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3689	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3690	or die "addr2line: $!";
		3691
		3692	my @funcs;
		3693	my @res = <$fh>;
		3694	chomp for @res;
		3695	while (@res) {
		3696	my ($func, $line) = splice @res, 0, 2, ();
		3697	push @funcs, "[$func] $line";
		3698	}
		3699
		3700	@funcs
		3701	};
		3702
		3703	LOG llevInfo, "[ABT] $msg\n";
		3704	LOG llevInfo, "[ABT] $_\n" for @bt;
		3705	--$_log_backtrace;
2212	})->();	3706	};
		3707	} else {
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] [suppressed]\n";
2213	},	3710	}
2214	);	3711	}
		3712
		3713	# load additional modules
		3714	use cf::pod;
2215		3715
2216	END { cf::emergency_save }	3716	END { cf::emergency_save }
2217		3717
2218	1	3718	1
2219		3719

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