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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.153 by root, Mon Jan 8 23:36:16 2007 UTC vs.
Revision 1.371 by root, Thu Sep 13 16:16:01 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		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;
		31	use YAML::Syck ();
22	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
23	use YAML::Syck ();
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 %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	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
91	every server tick.	136	every server tick.
92		137
93	=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
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	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.
105		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
122		194
123	LOG llevError, $msg;	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
126		198
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		206
134	# 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
135	# within the Safe compartment.	208	# within the Safe compartment.
136	for my $pkg (qw(	209	for my $pkg (qw(
137	cf::global cf::attachable	210	cf::global cf::attachable
…		…
146		219
147	$Event::DIED = sub {	220	$Event::DIED = sub {
148	warn "error in event callback: @_";	221	warn "error in event callback: @_";
149	};	222	};
150		223
151	my %ext_pkg;	224	#############################################################################
152	my @exts;
153	my @hook;
154		225
155	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
156		227
157	=over 4	228	=over 4
158		229
159	=cut	230	=item dumpval $ref
160		231
161	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	}
162		252
163	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
164		254
165	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
166		256
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
175		258
176	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
177		260
178	=cut	261	=cut
179		262
180	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
182	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
184		267
185	=item cf::lock_wait $string	268	=item cf::lock_wait $string
186		269
187	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
188		271
…		…
191	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
192	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,
193	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
194	returned.	277	returned.
195		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
196	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
197	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
198		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
199	=cut	289	=cut
200		290
201	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
202		293
203	sub lock_wait($) {	294	sub lock_wait($) {
204	my ($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#
205		301
206	# wait for lock, if any	302	# wait for lock, if any
207	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	305	Coro::schedule;
…		…
215		311
216	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
217	lock_wait $key;	313	lock_wait $key;
218		314
219	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
220		317
221	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
224	}	322	}
225	}	323	}
226		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
227	sub freeze_mainloop {	331	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
229		333
230	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
231	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
232	$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	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
233	}	395	}
234		396
235	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
236		398
237	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		404
243	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
244		406
245	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
246		408
247	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
250		413
251	If it must be done, put the blocking parts into C<sync_job>. This will run	414	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	415	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	416	server will be frozen during this time, so the block should either finish
254	fast or be very important.	417	fast or be very important.
…		…
257		420
258	sub sync_job(&) {	421	sub sync_job(&) {
259	my ($job) = @_;	422	my ($job) = @_;
260		423
261	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
262	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
264		429
265	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
277		442
278	while ($busy) {	443	while ($busy) {
279	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
280	}	445	}
281		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
282	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
283	} else {	455	} else {
284	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
285		457
286	$job->()	458	$job->()
287	}	459	}
288	}	460	}
289		461
290	=item $coro = cf::async_ext { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
291		463
292	Like async, but this coro is automcatially being canceled when the	464	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	465	extension calling this is being unloaded.
294		466
295	=cut	467	=cut
296		468
297	sub async_ext(&) {	469	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
306		478
307	$coro	479	$coro
308	}	480	}
309		481
310	sub write_runtime {	482	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		483
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
314	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
315		488
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		490
320	aio_fsync $fh	491	sub fork_call(&@) {
321	and return;	492	my ($cb, @args) = @_;
322		493
323	close $fh	494	# we seemingly have to make a local copy of the whole thing,
324	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
325		497
326	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
327	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
328		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
329	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	642	}
331		643
332	=back	644	=back
333		645
334	=cut	646	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		647
456	#############################################################################	648	#############################################################################
457		649
458	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
459		651
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
463		655
464	In the following description, CLASS can be any of C<global>, C<object>	656	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	658	Crossfire TRT).
467		659
468	=over 4	660	=over 4
469		661
470	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
471		663
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	778	our @CB_MAP = ();
587		779
588	my %attachment;	780	my %attachment;
589		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
590	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
592		790
593	use sort 'stable';	791	use sort 'stable';
594		792
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
629		827
630	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		832
635	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	834	my $pkg = shift @arg;
637		835
638	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
668	}	866	}
669		867
670	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
671	} else {	869	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	871	}
674		872
675	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
676	}	874	}
677		875
…		…
679	if (ref $_[0]) {	877	if (ref $_[0]) {
680	_object_attach @_;	878	_object_attach @_;
681	} else {	879	} else {
682	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
683	}	881	}
		882	_recalc_want;
684	};	883	};
685		884
686	# all those should be optimised	885	# all those should be optimised
687	sub cf::attachable::detach {	886	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
692	reattach ($obj);	891	reattach ($obj);
693	} else {	892	} else {
694	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
695	}	894	}
		895	_recalc_want;
696	};	896	};
697		897
698	sub cf::attachable::attached {	898	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
700		900
…		…
715	";	915	";
716	die if $@;	916	die if $@;
717	}	917	}
718		918
719	our $override;	919	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		921
722	sub override {	922	sub override {
723	$override = 1;	923	$override = 1;
724	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
725	}	925	}
726		926
727	sub do_invoke {	927	sub do_invoke {
728	my $event = shift;	928	my $event = shift;
729	my $callbacks = shift;	929	my $callbacks = shift;
730		930
731	@invoke_results = ();	931	@INVOKE_RESULTS = ();
732		932
733	local $override;	933	local $override;
734		934
735	for (@$callbacks) {	935	for (@$callbacks) {
736	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
753		953
754	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
755		955
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	957	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		959
760	=back	960	=back
761		961
762	=cut	962	=cut
763		963
764	#############################################################################	964	#############################################################################
765	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
766		977
767	sub reattach {	978	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		983
771	my $registry = $obj->registry;	984	my $registry = $obj->registry;
772		985
773	@$registry = ();	986	@$registry = ();
774		987
…		…
813	);	1026	);
814		1027
815	sub object_freezer_save {	1028	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
817		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
818	sync_job {	1033	sync_job {
819	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
822		1038
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1043	close $fh;
828		1044
829	if (@$objs) {	1045	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1046	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1051	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
837	}	1053	}
838	} else {	1054	} else {
839	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
845	}	1061	}
846	} else {	1062	} else {
847	aio_unlink $filename;	1063	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
849	}	1065	}
850	}	1066	};
		1067
		1068	undef $guard;
851	}	1069	}
852		1070
853	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
855		1073
…		…
860		1078
861	sub object_thawer_load {	1079	sub object_thawer_load {
862	my ($filename) = @_;	1080	my ($filename) = @_;
863		1081
864	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
865		1085
866	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
867	or return;	1087	or return;
868		1088
869	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
871	or return;	1091	or return;
		1092
		1093	undef $guard;
872	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
873	}	1095	}
874		1096
		1097	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
877	return ($data, $av);	1101	($data, $av)
878	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
879		1109
880	#############################################################################	1110	#############################################################################
881	# command handling &c	1111	# command handling &c
882		1112
883	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1127	}
898		1128
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1130
901	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
902		1136
903	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
904	called.	1138	called.
905		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
906	=cut	1151	=cut
907		1152
908	sub register_extcmd {	1153	sub register_extcmd {
909	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
910		1155
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
915	}	1163	}
916		1164
917	cf::player->attach (	1165	cf::player->attach (
918	on_command => sub {	1166	on_command => sub {
919	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1176	cf::override;
929	},	1177	},
930	on_extcmd => sub {	1178	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
932		1180
933	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1182
935	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
941	} else {	1198	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1200	}
944		1201
945	cf::override;	1202	cf::override;
946	},	1203	},
947	);	1204	);
948		1205
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
1026	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1211	next unless -r $path;
1028	eval {	1212
1029	load_extension $ext;	1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
1030	1	1270	}
1031	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
1032	}	1276	};
1033	}	1277	}
1034		1278
1035	#############################################################################	1279	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1280
1038	*cf::mapsupport::on_clean = sub {	1281	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1282
1073	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1074		1284
1075	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1076		1286
1077	=cut	1287	=cut
1078		1288
1079	package cf::player;	1289	package cf::player;
1080		1290
		1291	use Coro::AIO;
		1292
1081	=head3 cf::player	1293	=head3 cf::player
1082		1294
1083	=over 4	1295	=over 4
1084		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
1085	=item cf::player::find $login	1311	=item cf::player::find $login
1086		1312
1087	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1088		1314
1089	=cut	1315	=cut
1090		1316
1091	sub playerdir($) {	1317	sub playerdir($) {
1092	cf::localdir	1318	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1320	}
1098		1321
1099	sub path($) {	1322	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1324
1102	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
1103	}	1326	}
1104		1327
1105	sub find_active($) {	1328	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
1110		1333
1111	sub exists($) {	1334	sub exists($) {
1112	my ($login) = @_;	1335	my ($login) = @_;
1113		1336
1114	$cf::PLAYER{$login}	1337	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1338	or cf::sync_job { !aio_stat path $login }
1116	}	1339	}
1117		1340
1118	sub find($) {	1341	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1342	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1343	my $login = $_[0];
1121		1344
1122	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
1123		1346
1124	$cf::PLAYER{$_[0]} || do {	1347	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1356	or return;
		1357
		1358	$f->next;
		1359	my $pl = cf::player::load_pl $f
		1360	or return;
		1361	local $cf::PLAYER_LOADING{$login} = $pl;
		1362	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1363	$cf::PLAYER{$login} = $pl
1128	}	1364	}
1129	}	1365	}
1130	}	1366	}
1131		1367
…		…
1137	my $path = path $pl;	1373	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1374	my $guard = cf::lock_acquire "user_save:$path";
1139		1375
1140	return if $pl->{deny_save};	1376	return if $pl->{deny_save};
1141		1377
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1378	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1379	$pl->{last_save} = $cf::RUNTIME;
1144		1380
1145	$pl->save_pl ($path);	1381	$pl->save_pl ($path);
1146	Coro::cede;	1382	cf::cede_to_tick;
1147	}	1383	}
1148		1384
1149	sub new($) {	1385	sub new($) {
1150	my ($login) = @_;	1386	my ($login) = @_;
1151		1387
…		…
1157	$cf::PLAYER{$login} = $self;	1393	$cf::PLAYER{$login} = $self;
1158		1394
1159	$self	1395	$self
1160	}	1396	}
1161		1397
		1398	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1399
		1400	=cut
		1401
		1402	sub send_msg {
		1403	my $ns = shift->ns
		1404	or return;
		1405	$ns->send_msg (@_);
		1406	}
		1407
		1408	=item $pl->quit_character
		1409
		1410	Nukes the player without looking back. If logged in, the connection will
		1411	be destroyed. May block for a long time.
		1412
		1413	=cut
		1414
1162	sub quit_character {	1415	sub quit_character {
1163	my ($pl) = @_;	1416	my ($pl) = @_;
		1417
		1418	my $name = $pl->ob->name;
1164		1419
1165	$pl->{deny_save} = 1;	1420	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1421	$pl->password ("*"); # this should lock out the player until we nuked the dir
1167		1422
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1423	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1425	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1426	$pl->ns->destroy if $pl->ns;
1172		1427
1173	my $path = playerdir $pl;	1428	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1429	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1430	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1431	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1432	$pl->destroy;
		1433
		1434	my $prefix = qr<^~\Q$name\E/>;
		1435
		1436	# nuke player maps
		1437	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1438
1178	IO::AIO::aio_rmtree $temp;	1439	IO::AIO::aio_rmtree $temp;
1179	}	1440	}
1180		1441
		1442	=item $pl->kick
		1443
		1444	Kicks a player out of the game. This destroys the connection.
		1445
		1446	=cut
		1447
		1448	sub kick {
		1449	my ($pl, $kicker) = @_;
		1450
		1451	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1452	$pl->killer ("kicked");
		1453	$pl->ns->destroy;
		1454	}
		1455
		1456	=item cf::player::list_logins
		1457
		1458	Returns am arrayref of all valid playernames in the system, can take a
		1459	while and may block, so not sync_job-capable, ever.
		1460
		1461	=cut
		1462
		1463	sub list_logins {
		1464	my $dirs = aio_readdir $PLAYERDIR
		1465	or return [];
		1466
		1467	my @logins;
		1468
		1469	for my $login (@$dirs) {
		1470	my $path = path $login;
		1471
		1472	# a .pst is a dead give-away for a valid player
		1473	unless (-e "$path.pst") {
		1474	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1475	aio_read $fh, 0, 512, my $buf, 0 or next;
		1476	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1477	}
		1478
		1479	utf8::decode $login;
		1480	push @logins, $login;
		1481	}
		1482
		1483	\@logins
		1484	}
		1485
		1486	=item $player->maps
		1487
		1488	Returns an arrayref of map paths that are private for this
		1489	player. May block.
		1490
		1491	=cut
		1492
		1493	sub maps($) {
		1494	my ($pl) = @_;
		1495
		1496	$pl = ref $pl ? $pl->ob->name : $pl;
		1497
		1498	my $files = aio_readdir playerdir $pl
		1499	or return;
		1500
		1501	my @paths;
		1502
		1503	for (@$files) {
		1504	utf8::decode $_;
		1505	next if /\.(?:pl|pst)$/;
		1506	next unless /^$PATH_SEP/o;
		1507
		1508	push @paths, cf::map::normalise "~$pl/$_";
		1509	}
		1510
		1511	\@paths
		1512	}
		1513
		1514	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1515
		1516	Expand crossfire pod fragments into protocol xml.
		1517
		1518	=cut
		1519
		1520	sub expand_cfpod {
		1521	((my $self), (local $_)) = @_;
		1522
		1523	# escape & and <
		1524	s/&/&amp;/g;
		1525	s/(?<![BIUGHT])</&lt;/g;
		1526
		1527	# this is buggy, it needs to properly take care of nested <'s
		1528
		1529	1 while
		1530	# replace B<>, I<>, U<> etc.
		1531	s/B<([^\>]*)>/<b>$1<\/b>/
		1532	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1533	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1534	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1535	# replace G<male|female> tags
		1536	|| s{G<([^>|]*)\|([^>]*)>}{
		1537	$self->gender ? $2 : $1
		1538	}ge
		1539	# replace H<hint text>
		1540	|| s{H<([^\>]*)>}
		1541	{
		1542	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1543	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1544	"")
		1545	[$self->{hintmode}]
		1546	}ge;
		1547
		1548	# create single paragraphs (very hackish)
		1549	s/(?<=\S)\n(?=\w)/ /g;
		1550
		1551	# compress some whitespace
		1552	s/\s+\n/\n/g; # ws line-ends
		1553	s/\n\n+/\n/g; # double lines
		1554	s/^\n+//; # beginning lines
		1555	s/\n+$//; # ending lines
		1556
		1557	$_
		1558	}
		1559
		1560	sub hintmode {
		1561	$_[0]{hintmode} = $_[1] if @_ > 1;
		1562	$_[0]{hintmode}
		1563	}
		1564
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1565	=item $player->ext_reply ($msgid, @msg)
1182		1566
1183	Sends an ext reply to the player.	1567	Sends an ext reply to the player.
1184		1568
1185	=cut	1569	=cut
1186		1570
1187	sub ext_reply($$$%) {	1571	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1572	my ($self, $id, @msg) = @_;
1189		1573
1190	$msg{msgid} = $id;	1574	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1575	}
1194		1576
1195	package cf;	1577	=item $player->ext_msg ($type, @msg)
		1578
		1579	Sends an ext event to the client.
		1580
		1581	=cut
		1582
		1583	sub ext_msg($$@) {
		1584	my ($self, $type, @msg) = @_;
		1585
		1586	$self->ns->ext_msg ($type, @msg);
		1587	}
		1588
		1589	=head3 cf::region
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::region;
		1596
		1597	=item cf::region::find_by_path $path
		1598
		1599	Tries to decuce the likely region for a map knowing only its path.
		1600
		1601	=cut
		1602
		1603	sub find_by_path($) {
		1604	my ($path) = @_;
		1605
		1606	my ($match, $specificity);
		1607
		1608	for my $region (list) {
		1609	if ($region->{match} && $path =~ $region->{match}) {
		1610	($match, $specificity) = ($region, $region->specificity)
		1611	if $region->specificity > $specificity;
		1612	}
		1613	}
		1614
		1615	$match
		1616	}
1196		1617
1197	=back	1618	=back
1198
1199		1619
1200	=head3 cf::map	1620	=head3 cf::map
1201		1621
1202	=over 4	1622	=over 4
1203		1623
…		…
1206	package cf::map;	1626	package cf::map;
1207		1627
1208	use Fcntl;	1628	use Fcntl;
1209	use Coro::AIO;	1629	use Coro::AIO;
1210		1630
		1631	use overload
		1632	'""' => \&as_string,
		1633	fallback => 1;
		1634
1211	our $MAX_RESET = 3600;	1635	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1636	our $DEFAULT_RESET = 3000;
1213		1637
1214	sub generate_random_map {	1638	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1639	my ($self, $rmp) = @_;
1216
1217	# mit "rum" bekleckern, nicht	1640	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1641	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1642	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1643	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1644	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1645	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1646	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1647	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1648	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1649	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1650	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1651	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1652	(cf::region::find $rmp->{region}), $rmp->{custom}
		1653	)
		1654	}
		1655
		1656	=item cf::map->register ($regex, $prio)
		1657
		1658	Register a handler for the map path matching the given regex at the
		1659	givne priority (higher is better, built-in handlers have priority 0, the
		1660	default).
		1661
		1662	=cut
		1663
		1664	sub register {
		1665	my (undef, $regex, $prio) = @_;
		1666	my $pkg = caller;
		1667
		1668	no strict;
		1669	push @{"$pkg\::ISA"}, __PACKAGE__;
		1670
		1671	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1672	}
		1673
		1674	# also paths starting with '/'
		1675	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1676
		1677	sub thawer_merge {
		1678	my ($self, $merge) = @_;
		1679
		1680	# we have to keep some variables in memory intact
		1681	local $self->{path};
		1682	local $self->{load_path};
		1683
		1684	$self->SUPER::thawer_merge ($merge);
		1685	}
		1686
		1687	sub normalise {
		1688	my ($path, $base) = @_;
		1689
		1690	$path = "$path"; # make sure its a string
		1691
		1692	$path =~ s/\.map$//;
		1693
		1694	# map plan:
		1695	#
		1696	# /! non-realised random map exit (special hack!)
		1697	# {... are special paths that are not being touched
		1698	# ?xxx/... are special absolute paths
		1699	# ?random/... random maps
		1700	# /... normal maps
		1701	# ~user/... per-player map of a specific user
		1702
		1703	$path =~ s/$PATH_SEP/\//go;
		1704
		1705	# treat it as relative path if it starts with
		1706	# something that looks reasonable
		1707	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1708	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1709
		1710	$base =~ s{[^/]+/?$}{};
		1711	$path = "$base/$path";
		1712	}
		1713
		1714	for ($path) {
		1715	redo if s{//}{/};
		1716	redo if s{/\.?/}{/};
		1717	redo if s{/[^/]+/\.\./}{/};
		1718	}
		1719
		1720	$path
		1721	}
		1722
		1723	sub new_from_path {
		1724	my (undef, $path, $base) = @_;
		1725
		1726	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1727
		1728	$path = normalise $path, $base;
		1729
		1730	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1731	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1732	my $self = bless cf::map::new, $pkg;
		1733	$self->{path} = $path; $self->path ($path);
		1734	$self->init; # pass $1 etc.
		1735	return $self;
		1736	}
		1737	}
		1738
		1739	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1740	()
		1741	}
		1742
		1743	sub init {
		1744	my ($self) = @_;
		1745
		1746	$self
		1747	}
		1748
		1749	sub as_string {
		1750	my ($self) = @_;
		1751
		1752	"$self->{path}"
		1753	}
		1754
		1755	# the displayed name, this is a one way mapping
		1756	sub visible_name {
		1757	&as_string
		1758	}
		1759
		1760	# the original (read-only) location
		1761	sub load_path {
		1762	my ($self) = @_;
		1763
		1764	"$MAPDIR/$self->{path}.map"
		1765	}
		1766
		1767	# the temporary/swap location
		1768	sub save_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$TMPDIR/$path.map"
		1773	}
		1774
		1775	# the unique path, undef == no special unique path
		1776	sub uniq_path {
		1777	my ($self) = @_;
		1778
		1779	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1780	"$UNIQUEDIR/$path"
1231	}	1781	}
1232		1782
1233	# and all this just because we cannot iterate over	1783	# and all this just because we cannot iterate over
1234	# all maps in C++...	1784	# all maps in C++...
1235	sub change_all_map_light {	1785	sub change_all_map_light {
…		…
1237		1787
1238	$_->change_map_light ($change)	1788	$_->change_map_light ($change)
1239	for grep $_->outdoor, values %cf::MAP;	1789	for grep $_->outdoor, values %cf::MAP;
1240	}	1790	}
1241		1791
		1792	sub decay_objects {
		1793	my ($self) = @_;
		1794
		1795	return if $self->{deny_reset};
		1796
		1797	$self->do_decay_objects;
		1798	}
		1799
		1800	sub unlink_save {
		1801	my ($self) = @_;
		1802
		1803	utf8::encode (my $save = $self->save_path);
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1805	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1806	}
		1807
1242	sub try_load_header($) {	1808	sub load_header_from($) {
1243	my ($path) = @_;	1809	my ($self, $path) = @_;
1244		1810
1245	utf8::encode $path;	1811	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1812	my $f = new_from_file cf::object::thawer $path
1247	or return;	1813	or return;
1248		1814
1249	my $map = cf::map::new	1815	$self->_load_header ($f)
1250	or return;	1816	or return;
1251		1817
1252	# for better error messages only, will be overwritten	1818	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	1819	$f->resolve_delayed_derefs;
1254		1820
1255	$map->load_header ($path)	1821	$self->{load_path} = $path;
		1822
		1823	1
		1824	}
		1825
		1826	sub load_header_orig {
		1827	my ($self) = @_;
		1828
		1829	$self->load_header_from ($self->load_path)
		1830	}
		1831
		1832	sub load_header_temp {
		1833	my ($self) = @_;
		1834
		1835	$self->load_header_from ($self->save_path)
		1836	}
		1837
		1838	sub prepare_temp {
		1839	my ($self) = @_;
		1840
		1841	$self->last_access ((delete $self->{last_access})
		1842	|| $cf::RUNTIME); #d#
		1843	# safety
		1844	$self->{instantiate_time} = $cf::RUNTIME
		1845	if $self->{instantiate_time} > $cf::RUNTIME;
		1846	}
		1847
		1848	sub prepare_orig {
		1849	my ($self) = @_;
		1850
		1851	$self->{load_original} = 1;
		1852	$self->{instantiate_time} = $cf::RUNTIME;
		1853	$self->last_access ($cf::RUNTIME);
		1854	$self->instantiate;
		1855	}
		1856
		1857	sub load_header {
		1858	my ($self) = @_;
		1859
		1860	if ($self->load_header_temp) {
		1861	$self->prepare_temp;
		1862	} else {
		1863	$self->load_header_orig
1256	or return;	1864	or return;
		1865	$self->prepare_orig;
		1866	}
1257		1867
1258	$map->{load_path} = $path;	1868	$self->{deny_reset} = 1
		1869	if $self->no_reset;
1259		1870
1260	$map	1871	$self->default_region (cf::region::find_by_path $self->{path})
		1872	unless $self->default_region;
		1873
		1874	1
1261	}	1875	}
1262		1876
1263	sub find;	1877	sub find;
1264	sub find {	1878	sub find {
1265	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1266		1880
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	1881	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		1882
		1883	cf::lock_wait "map_data:$path";#d#remove
1272	cf::lock_wait "map_find:$key";	1884	cf::lock_wait "map_find:$path";
1273		1885
1274	$cf::MAP{$key} || do {	1886	$cf::MAP{$path} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	1887	my $guard1 = cf::lock_acquire "map_find:$path";
		1888	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1276		1889
1277	# do it the slow way	1890	my $map = new_from_path cf::map $path
1278	my $map = try_load_header $path->save_path;
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	1891	or return;
1296		1892
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	1893	$map->{last_save} = $cf::RUNTIME;
1309		1894
1310	Coro::cede;	1895	$map->load_header
		1896	or return;
1311		1897
1312	if ($map->should_reset) {	1898	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1899	# doing this can freeze the server in a sync job, obviously
		1900	#$cf::WAIT_FOR_TICK->wait;
		1901	undef $guard1;
		1902	undef $guard2;
1313	$map->reset;	1903	$map->reset;
1314	undef $guard;
1315	$map = find $path	1904	return find $path;
1316	or return;
1317	}	1905	}
1318		1906
1319	$cf::MAP{$key} = $map	1907	$cf::MAP{$path} = $map
1320	}	1908	}
1321	}	1909	}
		1910
		1911	sub pre_load { }
		1912	sub post_load { }
1322		1913
1323	sub load {	1914	sub load {
1324	my ($self) = @_;	1915	my ($self) = @_;
1325		1916
		1917	local $self->{deny_reset} = 1; # loading can take a long time
		1918
1326	my $path = $self->{path};	1919	my $path = $self->{path};
		1920
		1921	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1922	my $guard = cf::lock_acquire "map_data:$path";
1328		1923
		1924	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	1925	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		1926
1331	$self->in_memory (cf::MAP_LOADING);	1927	$self->in_memory (cf::MAP_LOADING);
1332		1928
1333	$self->alloc;	1929	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	1930
		1931	$self->pre_load;
		1932	cf::cede_to_tick;
		1933
		1934	my $f = new_from_file cf::object::thawer $self->{load_path};
		1935	$f->skip_block;
		1936	$self->_load_objects ($f)
1335	or return;	1937	or return;
1336		1938
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1939	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1338	if delete $self->{load_original};	1940	if delete $self->{load_original};
1339		1941
1340	if (my $uniq = $path->uniq_path) {	1942	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	1943	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	1944	unless (aio_stat $uniq) {
		1945	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	1946	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	1947	$self->_load_objects ($f);
		1948	$f->resolve_delayed_derefs;
		1949	}
1345	}	1950	}
1346	}	1951	}
1347		1952
1348	Coro::cede;	1953	$f->resolve_delayed_derefs;
1349		1954
		1955	cf::cede_to_tick;
1350	# now do the right thing for maps	1956	# now do the right thing for maps
1351	$self->link_multipart_objects;	1957	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	1958	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	1959	unless $self->difficulty;
		1960	cf::cede_to_tick;
		1961
		1962	unless ($self->{deny_activate}) {
		1963	$self->decay_objects;
		1964	$self->fix_auto_apply;
		1965	$self->update_buttons;
		1966	cf::cede_to_tick;
		1967	$self->set_darkness_map;
		1968	cf::cede_to_tick;
1363	$self->activate;	1969	$self->activate;
1364	}	1970	}
1365		1971
1366	Coro::cede;	1972	$self->{last_save} = $cf::RUNTIME;
		1973	$self->last_access ($cf::RUNTIME);
1367		1974
1368	$self->in_memory (cf::MAP_IN_MEMORY);	1975	$self->in_memory (cf::MAP_IN_MEMORY);
		1976	}
		1977
		1978	$self->post_load;
		1979	}
		1980
		1981	sub customise_for {
		1982	my ($self, $ob) = @_;
		1983
		1984	return find "~" . $ob->name . "/" . $self->{path}
		1985	if $self->per_player;
		1986
		1987	# return find "?party/" . $ob->name . "/" . $self->{path}
		1988	# if $self->per_party;
		1989
		1990	$self
		1991	}
		1992
		1993	# find and load all maps in the 3x3 area around a map
		1994	sub load_neighbours {
		1995	my ($map) = @_;
		1996
		1997	my @neigh; # diagonal neighbours
		1998
		1999	for (0 .. 3) {
		2000	my $neigh = $map->tile_path ($_)
		2001	or next;
		2002	$neigh = find $neigh, $map
		2003	or next;
		2004	$neigh->load;
		2005
		2006	push @neigh,
		2007	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2008	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2009	}
		2010
		2011	for (grep defined $_->[0], @neigh) {
		2012	my ($path, $origin) = @$_;
		2013	my $neigh = find $path, $origin
		2014	or next;
		2015	$neigh->load;
		2016	}
1369	}	2017	}
1370		2018
1371	sub find_sync {	2019	sub find_sync {
1372	my ($path, $origin) = @_;	2020	my ($path, $origin) = @_;
1373		2021
1374	cf::sync_job { cf::map::find $path, $origin }	2022	cf::sync_job { find $path, $origin }
1375	}	2023	}
1376		2024
1377	sub do_load_sync {	2025	sub do_load_sync {
1378	my ($map) = @_;	2026	my ($map) = @_;
1379		2027
		2028	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2029	if $Coro::current == $Coro::main;
		2030
1380	cf::sync_job { $map->load };	2031	cf::sync_job { $map->load };
		2032	}
		2033
		2034	our %MAP_PREFETCH;
		2035	our $MAP_PREFETCHER = undef;
		2036
		2037	sub find_async {
		2038	my ($path, $origin, $load) = @_;
		2039
		2040	$path = normalise $path, $origin && $origin->{path};
		2041
		2042	if (my $map = $cf::MAP{$path}) {
		2043	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2044	}
		2045
		2046	$MAP_PREFETCH{$path} |= $load;
		2047
		2048	$MAP_PREFETCHER ||= cf::async {
		2049	while (%MAP_PREFETCH) {
		2050	while (my ($k, $v) = each %MAP_PREFETCH) {
		2051	if (my $map = find $k) {
		2052	$map->load if $v;
		2053	}
		2054
		2055	delete $MAP_PREFETCH{$k};
		2056	}
		2057	}
		2058	undef $MAP_PREFETCHER;
		2059	};
		2060	$MAP_PREFETCHER->prio (6);
		2061
		2062	()
1381	}	2063	}
1382		2064
1383	sub save {	2065	sub save {
1384	my ($self) = @_;	2066	my ($self) = @_;
1385		2067
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2068	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2069
1388	$self->{last_save} = $cf::RUNTIME;	2070	$self->{last_save} = $cf::RUNTIME;
1389		2071
1390	return unless $self->dirty;	2072	return unless $self->dirty;
1391		2073
1392	my $save = $self->{path}->save_path; utf8::encode $save;	2074	my $save = $self->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2075	my $uniq = $self->uniq_path; utf8::encode $uniq;
1394		2076
1395	$self->{load_path} = $save;	2077	$self->{load_path} = $save;
1396		2078
1397	return if $self->{deny_save};	2079	return if $self->{deny_save};
1398		2080
…		…
1401	cf::async {	2083	cf::async {
1402	$_->contr->save for $self->players;	2084	$_->contr->save for $self->players;
1403	};	2085	};
1404		2086
1405	if ($uniq) {	2087	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {	2090	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}	2092	}
1411	}	2093	}
1412		2094
1413	sub swap_out {	2095	sub swap_out {
1414	my ($self) = @_;	2096	my ($self) = @_;
1415		2097
1416	# save first because save cedes	2098	# save first because save cedes
1417	$self->save;	2099	$self->save;
1418		2100
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2102
1421	return if $self->players;	2103	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};	2105	return if $self->{deny_save};
1424		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1425	$self->clear;	2111	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2112	}
1428		2113
1429	sub reset_at {	2114	sub reset_at {
1430	my ($self) = @_;	2115	my ($self) = @_;
1431		2116
1432	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1435		2119
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2122
…		…
1443	my ($self) = @_;	2127	my ($self) = @_;
1444		2128
1445	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1446	}	2130	}
1447		2131
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2132	sub reset {
1470	my ($self) = @_;	2133	my ($self) = @_;
1471		2134
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2136
1474	return if $self->players;	2137	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2138
1477	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1478		2150
1479	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1480		2152
		2153	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1482		2156
1483	$self->unlink_save;	2157	$self->unlink_save;
1484	$self->destroy;	2158	$self->destroy;
1485	}	2159	}
1486		2160
1487	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1488		2162
1489	sub nuke {	2163	sub nuke {
1490	my ($self) = @_;	2164	my ($self) = @_;
1491		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1495	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1496	}	2183	}
1497		2184
1498	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2186
1501	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1503	}	2193	[
1504		2194	map {
1505	$map	2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
1506	}	2201	}
1507		2202
1508	sub emergency_save {	2203	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2204
1511	warn "enter emergency perl save\n";	2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
1512		2207
1513	cf::sync_job {	2208	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2209
1518	warn "begin emergency map save\n";	2210	sub random_maps() {
1519	$_->save for values %cf::MAP;	2211	[
1520	warn "end emergency map save\n";	2212	map {
1521	};	2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
		2219	}
1522		2220
1523	warn "leave emergency perl save\n";	2221	=item cf::map::unique_maps
		2222
		2223	Returns an arrayref of paths of all shared maps that have
		2224	instantiated unique items. May block.
		2225
		2226	=cut
		2227
		2228	sub unique_maps() {
		2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $UNIQUEDIR or [] }
		2236	]
1524	}	2237	}
1525		2238
1526	package cf;	2239	package cf;
1527		2240
1528	=back	2241	=back
1529		2242
		2243	=head3 cf::object
		2244
		2245	=cut
		2246
		2247	package cf::object;
		2248
		2249	=over 4
		2250
		2251	=item $ob->inv_recursive
		2252
		2253	Returns the inventory of the object _and_ their inventories, recursively.
		2254
		2255	=cut
		2256
		2257	sub inv_recursive_;
		2258	sub inv_recursive_ {
		2259	map { $_, inv_recursive_ $_->inv } @_
		2260	}
		2261
		2262	sub inv_recursive {
		2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	# temporary compatibility#TODO#remove
		2281	$ref =~ s{^<}{player/<};
		2282
		2283	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2284	my ($uuid, $name) = ($1, $2);
		2285	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2286	or return;
		2287	$pl->ob->uuid eq $uuid
		2288	or return;
		2289
		2290	$pl->ob
		2291	} else {
		2292	warn "$ref: cannot resolve object reference\n";
		2293	undef
		2294	}
		2295	}
		2296
		2297	package cf;
		2298
		2299	=back
1530		2300
1531	=head3 cf::object::player	2301	=head3 cf::object::player
1532		2302
1533	=over 4	2303	=over 4
1534		2304
…		…
1548		2318
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2320
1551	if ($self->{record_replies}) {	2321	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2323
1553	} else {	2324	} else {
		2325	my $pl = $self->contr;
		2326
		2327	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2328	my $dialog = $pl->{npc_dialog};
		2329	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2330
		2331	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2332	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2333	$self->message ($msg, $flags);
		2334	}
1556	}	2335	}
		2336	}
		2337
		2338	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2339
		2340	=cut
		2341
		2342	sub cf::object::send_msg {
		2343	my $pl = shift->contr
		2344	or return;
		2345	$pl->send_msg (@_);
1557	}	2346	}
1558		2347
1559	=item $player_object->may ("access")	2348	=item $player_object->may ("access")
1560		2349
1561	Returns wether the given player is authorized to access resource "access"	2350	Returns wether the given player is authorized to access resource "access"
…		…
1574		2363
1575	=item $player_object->enter_link	2364	=item $player_object->enter_link
1576		2365
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2366	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2367
1579	The player should be reaosnably safe there for short amounts of time. You	2368	The player should be reasonably safe there for short amounts of time. You
1580	I<MUST> call C<leave_link> as soon as possible, though.	2369	I<MUST> call C<leave_link> as soon as possible, though.
1581		2370
		2371	Will never block.
		2372
1582	=item $player_object->leave_link ($map, $x, $y)	2373	=item $player_object->leave_link ($map, $x, $y)
1583		2374
1584	Moves the player out of the specila link map onto the given map. If the	2375	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2376	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2377	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2378	fails, to the emergency map position.
1588		2379
1589	Might block.	2380	Might block.
1590		2381
1591	=cut	2382	=cut
		2383
		2384	sub link_map {
		2385	unless ($LINK_MAP) {
		2386	$LINK_MAP = cf::map::find "{link}"
		2387	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2388	$LINK_MAP->load;
		2389	}
		2390
		2391	$LINK_MAP
		2392	}
1592		2393
1593	sub cf::object::player::enter_link {	2394	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2395	my ($self) = @_;
1595		2396
1596	$self->deactivate_recursive;	2397	$self->deactivate_recursive;
1597		2398
1598	return if $self->map == $LINK_MAP;	2399	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2400
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2401	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2402	if $self->map && $self->map->{path} ne "{link}";
1602		2403
1603	$self->enter_map ($LINK_MAP, 20, 20);	2404	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1604	}	2405	}
1605		2406
1606	sub cf::object::player::leave_link {	2407	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2408	my ($self, $map, $x, $y) = @_;
		2409
		2410	return unless $self->contr->active;
1608		2411
1609	my $link_pos = delete $self->{_link_pos};	2412	my $link_pos = delete $self->{_link_pos};
1610		2413
1611	unless ($map) {	2414	unless ($map) {
1612	# restore original map position	2415	# restore original map position
…		…
1626	# use -1 or undef as default coordinates, not 0, 0	2429	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2430	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2431	if $x <=0 && $y <= 0;
1629		2432
1630	$map->load;	2433	$map->load;
		2434	$map->load_neighbours;
1631		2435
1632	return unless $self->contr->active;	2436	return unless $self->contr->active;
1633	$self->activate_recursive;	2437	$self->activate_recursive;
		2438
		2439	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1634	$self->enter_map ($map, $x, $y);	2440	$self->enter_map ($map, $x, $y);
1635	}	2441	}
1636		2442
1637	cf::player->attach (	2443	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1638	on_logout => sub {
1639	my ($pl) = @_;
1640		2444
1641	# abort map switching before logout	2445	Moves the player to the given map-path and coordinates by first freezing
1642	if ($pl->ob->{_link_pos}) {	2446	her, loading and preparing them map, calling the provided $check callback
1643	cf::sync_job {	2447	that has to return the map if sucecssful, and then unfreezes the player on
1644	$pl->ob->leave_link	2448	the new (success) or old (failed) map position. In either case, $done will
1645	};	2449	be called at the end of this process.
1646	}
1647	},
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2450
1651	# try to abort aborted map switching on player login :)
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668
1669	=item $player_object->goto ($path, $x, $y)
1670
1671	=cut	2451	=cut
		2452
		2453	our $GOTOGEN;
1672		2454
1673	sub cf::object::player::goto {	2455	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2456	my ($self, $path, $x, $y, $check, $done) = @_;
1675		2457
1676	$path = new cf::path $path;	2458	# do generation counting so two concurrent goto's will be executed in-order
1677	$path ne "/" or Carp::cluck ("oy");#d#	2459	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1678		2460
1679	$self->enter_link;	2461	$self->enter_link;
1680		2462
1681	(async {	2463	(async {
1682	my $map = cf::map::find $path->as_string;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1683	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1684		2488	$map = $check->($map) if $check && $map;
1685	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1686	# if $map;
1687
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1689		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1691	})->prio (1);	2507	})->prio (1);
1692	}	2508	}
1693		2509
1694	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1695		2511
…		…
1697		2513
1698	sub parse_random_map_params {	2514	sub parse_random_map_params {
1699	my ($spec) = @_;	2515	my ($spec) = @_;
1700		2516
1701	my $rmp = { # defaults	2517	my $rmp = { # defaults
1702	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1704	};	2522	};
1705		2523
1706	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1708		2526
…		…
1712	$rmp	2530	$rmp
1713	}	2531	}
1714		2532
1715	sub prepare_random_map {	2533	sub prepare_random_map {
1716	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1717		2537
1718	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1719	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1720	# that depends on the exit object	2540	# that depends on the exit object
1721		2541
1722	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1723		2543
1724	if ($exit->map) {	2544	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1729	}	2549	}
1730		2550
1731	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1732		2552
1733	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1734	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1735		2556
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1738		2561
1739	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2563	$exit->msg (undef);
1741	}	2564	}
1742	}	2565	}
…		…
1744	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1746		2569
1747	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1748		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1749	$self->enter_link;	2583	$self->enter_link;
		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
1750		2588
1751	(async {	2589	(async {
1752	$self->deactivate_recursive; # just to be sure	2590	$self->deactivate_recursive; # just to be sure
1753	unless (eval {	2591	unless (eval {
1754	prepare_random_map $exit	2592	$self->goto ($slaying, $hp, $sp);
1755	if $exit->slaying eq "/!";
1756
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1759		2593
1760	1;	2594	1;
1761	}) {	2595	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2596	$self->message ("Something went wrong deep within the crossfire server. "
1763	. "I'll try to bring you back to the map you were before. "	2597	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2598	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2599	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2600
1767	warn "ERROR in enter_exit: $@";	2601	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2602	$self->leave_link;
1769	}	2603	}
1770	})->prio (1);	2604	})->prio (1);
…		…
1783		2617
1784	sub cf::client::send_drawinfo {	2618	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2619	my ($self, $text, $flags) = @_;
1786		2620
1787	utf8::encode $text;	2621	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2622	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2623	}
1790		2624
		2625	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2626
		2627	Send a drawinfo or msg packet to the client, formatting the msg for the
		2628	client if neccessary. C<$type> should be a string identifying the type of
		2629	the message, with C<log> being the default. If C<$color> is negative, suppress
		2630	the message unless the client supports the msg packet.
		2631
		2632	=cut
		2633
		2634	our %CHANNEL = (
		2635	"c/identify" => {
		2636	id => "identify",
		2637	title => "Identify",
		2638	reply => undef,
		2639	tooltip => "Items recently identified",
		2640	},
		2641	"c/examine" => {
		2642	id => "examine",
		2643	title => "Examine",
		2644	reply => undef,
		2645	tooltip => "Signs and other items you examined",
		2646	},
		2647	);
		2648
		2649	sub cf::client::send_msg {
		2650	my ($self, $channel, $msg, $color, @extra) = @_;
		2651
		2652	$msg = $self->pl->expand_cfpod ($msg);
		2653
		2654	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2655
		2656	# check predefined channels, for the benefit of C
		2657	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2658
		2659	if (ref $channel) {
		2660	# send meta info to client, if not yet sent
		2661	unless (exists $self->{channel}{$channel->{id}}) {
		2662	$self->{channel}{$channel->{id}} = $channel;
		2663	$self->ext_msg (channel_info => $channel)
		2664	if $self->can_msg;
		2665	}
		2666
		2667	$channel = $channel->{id};
		2668	}
		2669
		2670	return unless @extra || length $msg;
		2671
		2672	if ($self->can_msg) {
		2673	# default colour, mask it out
		2674	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2675	if $color & cf::NDI_DEF;
		2676
		2677	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2678	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2679	} else {
		2680	if ($color >= 0) {
		2681	# replace some tags by gcfclient-compatible ones
		2682	for ($msg) {
		2683	1 while
		2684	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2685	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2686	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2687	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2688	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2689	}
		2690
		2691	$color &= cf::NDI_COLOR_MASK;
		2692
		2693	utf8::encode $msg;
		2694
		2695	if (0 && $msg =~ /\[/) {
		2696	# COMMAND/INFO
		2697	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2698	} else {
		2699	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2700	$self->send_packet ("drawinfo $color $msg")
		2701	}
		2702	}
		2703	}
		2704	}
		2705
		2706	=item $client->ext_msg ($type, @msg)
		2707
		2708	Sends an ext event to the client.
		2709
		2710	=cut
		2711
		2712	sub cf::client::ext_msg($$@) {
		2713	my ($self, $type, @msg) = @_;
		2714
		2715	if ($self->extcmd == 2) {
		2716	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2717	} elsif ($self->extcmd == 1) { # TODO: remove
		2718	push @msg, msgtype => "event_$type";
		2719	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2720	}
		2721	}
		2722
		2723	=item $client->ext_reply ($msgid, @msg)
		2724
		2725	Sends an ext reply to the client.
		2726
		2727	=cut
		2728
		2729	sub cf::client::ext_reply($$@) {
		2730	my ($self, $id, @msg) = @_;
		2731
		2732	if ($self->extcmd == 2) {
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2734	} elsif ($self->extcmd == 1) {
		2735	#TODO: version 1, remove
		2736	unshift @msg, msgtype => "reply", msgid => $id;
		2737	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2738	}
		2739	}
1791		2740
1792	=item $success = $client->query ($flags, "text", \&cb)	2741	=item $success = $client->query ($flags, "text", \&cb)
1793		2742
1794	Queues a query to the client, calling the given callback with	2743	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2744	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2745	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		2746
1798	Queries can fail, so check the return code. Or don't, as queries will become	2747	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	2748	become reliable at some point in the future.
1800		2749
1801	=cut	2750	=cut
1802		2751
1803	sub cf::client::query {	2752	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	2753	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	2761	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2762	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		2763
1815	$self->send_packet ($self->{query_queue}[0][0])	2764	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	2765	if @{ $self->{query_queue} } == 1;
		2766
		2767	1
1817	}	2768	}
1818		2769
1819	cf::client->attach (	2770	cf::client->attach (
		2771	on_connect => sub {
		2772	my ($ns) = @_;
		2773
		2774	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2775	},
1820	on_reply => sub {	2776	on_reply => sub {
1821	my ($ns, $msg) = @_;	2777	my ($ns, $msg) = @_;
1822		2778
1823	# this weird shuffling is so that direct followup queries	2779	# this weird shuffling is so that direct followup queries
1824	# get handled first	2780	# get handled first
1825	my $queue = delete $ns->{query_queue}	2781	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	2782	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		2783
1828	(shift @$queue)->[1]->($msg);	2784	(shift @$queue)->[1]->($msg);
		2785	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		2786
1830	push @{ $ns->{query_queue} }, @$queue;	2787	push @{ $ns->{query_queue} }, @$queue;
1831		2788
1832	if (@{ $ns->{query_queue} } == @$queue) {	2789	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	2790	if (@$queue) {
…		…
1835	} else {	2792	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2793	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	2794	}
1838	}	2795	}
1839	},	2796	},
		2797	on_exticmd => sub {
		2798	my ($ns, $buf) = @_;
		2799
		2800	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2801
		2802	if (ref $msg) {
		2803	my ($type, $reply, @payload) =
		2804	"ARRAY" eq ref $msg
		2805	? @$msg
		2806	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2807
		2808	my @reply;
		2809
		2810	if (my $cb = $EXTICMD{$type}) {
		2811	@reply = $cb->($ns, @payload);
		2812	}
		2813
		2814	$ns->ext_reply ($reply, @reply)
		2815	if $reply;
		2816
		2817	} else {
		2818	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2819	}
		2820
		2821	cf::override;
		2822	},
1840	);	2823	);
1841		2824
1842	=item $client->async (\&cb)	2825	=item $client->async (\&cb)
1843		2826
1844	Create a new coroutine, running the specified callback. The coroutine will	2827	Create a new coroutine, running the specified callback. The coroutine will
…		…
1885	our $safe = new Safe "safe";	2868	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	2869	our $safe_hole = new Safe::Hole;
1887		2870
1888	$SIG{FPE} = 'IGNORE';	2871	$SIG{FPE} = 'IGNORE';
1889		2872
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2873	$safe->permit_only (Opcode::opset qw(
		2874	:base_core :base_mem :base_orig :base_math
		2875	grepstart grepwhile mapstart mapwhile
		2876	sort time
		2877	));
1891		2878
1892	# here we export the classes and methods available to script code	2879	# here we export the classes and methods available to script code
1893		2880
1894	=pod	2881	=pod
1895		2882
1896	The following fucntions and emthods are available within a safe environment:	2883	The following functions and methods are available within a safe environment:
1897		2884
1898	cf::object contr pay_amount pay_player map	2885	cf::object
		2886	contr pay_amount pay_player map x y force_find force_add
		2887	insert remove name archname title slaying race decrease_ob_nr
		2888
1899	cf::object::player player	2889	cf::object::player
1900	cf::player peaceful	2890	player
1901	cf::map trigger	2891
		2892	cf::player
		2893	peaceful
		2894
		2895	cf::map
		2896	trigger
1902		2897
1903	=cut	2898	=cut
1904		2899
1905	for (	2900	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	2901	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2902	insert remove inv name archname title slaying race
		2903	decrease_ob_nr)],
1907	["cf::object::player" => qw(player)],	2904	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	2905	["cf::player" => qw(peaceful)],
1909	["cf::map" => qw(trigger)],	2906	["cf::map" => qw(trigger)],
1910	) {	2907	) {
1911	no strict 'refs';	2908	no strict 'refs';
…		…
1982	=back	2979	=back
1983		2980
1984	=cut	2981	=cut
1985		2982
1986	#############################################################################	2983	#############################################################################
		2984	# the server's init and main functions
1987		2985
1988	=head2 EXTENSION DATABASE SUPPORT	2986	sub load_facedata($) {
		2987	my ($path) = @_;
1989		2988
1990	Crossfire maintains a very simple database for extension use. It can	2989	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	2990	# for this (global event?)
1992	excludes objects.	2991	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		2992
1994	The parameter C<$family> should best start with the name of the extension	2993	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		2994
1997	=over 4	2995	warn "loading facedata from $path\n";
1998		2996
1999	=item $hashref = cf::db_get $family	2997	my $facedata;
		2998	0 < aio_load $path, $facedata
		2999	or die "$path: $!";
2000		3000
2001	Return a hashref for use by the extension C<$family>, which can be	3001	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		3002
2005	=item $value = cf::db_get $family => $key	3003	$facedata->{version} == 2
		3004	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		3005
2007	Returns a single value from the database	3006	# patch in the exptable
2008		3007	$facedata->{resource}{"res/exp_table"} = {
2009	=item cf::db_put $family => $hashref	3008	type => FT_RSRC,
2010		3009	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3010	};
		3011	cf::cede_to_tick;
2060		3012
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3013	{
		3014	my $faces = $facedata->{faceinfo};
2065		3015
2066	sub db_get($;$) {	3016	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3017	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}	3018	cf::face::set_visibility $idx, $info->{visibility};
2069	: ($DB->{$_[0]} ||= { })	3019	cf::face::set_magicmap $idx, $info->{magicmap};
2070	}	3020	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3021	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2071		3022
2072	sub db_put($$;$) {	3023	cf::cede_to_tick;
2073	if (@_ >= 3) {
2074	$DB->{$_[0]}{$_[1]} = $_[2];
2075	} else {
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080
2081	cf::global->attach (
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3024	}
2086	);
2087	}
2088		3025
2089	#############################################################################	3026	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3027	next unless $info->{smooth};
		3028	my $idx = cf::face::find $face
		3029	or next;
		3030	if (my $smooth = cf::face::find $info->{smooth}) {
		3031	cf::face::set_smooth $idx, $smooth;
		3032	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3033	} else {
		3034	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3035	}
2091		3036
2092	sub cfg_load {	3037	cf::cede_to_tick;
		3038	}
		3039	}
		3040
		3041	{
		3042	my $anims = $facedata->{animinfo};
		3043
		3044	while (my ($anim, $info) = each %$anims) {
		3045	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	cf::anim::invalidate_all; # d'oh
		3050	}
		3051
		3052	{
		3053	# TODO: for gcfclient pleasure, we should give resources
		3054	# that gcfclient doesn't grok a >10000 face index.
		3055	my $res = $facedata->{resource};
		3056
		3057	my $soundconf = delete $res->{"res/sound.conf"};
		3058
		3059	while (my ($name, $info) = each %$res) {
		3060	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3061	my $data;
		3062
		3063	if ($info->{type} & 1) {
		3064	# prepend meta info
		3065
		3066	my $meta = $enc->encode ({
		3067	name => $name,
		3068	%{ $info->{meta} || {} },
		3069	});
		3070
		3071	$data = pack "(w/a*)*", $meta, $info->{data};
		3072	} else {
		3073	$data = $info->{data};
		3074	}
		3075
		3076	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3077	cf::face::set_type $idx, $info->{type};
		3078
		3079	cf::cede_to_tick;
		3080	}
		3081
		3082	if ($soundconf) {
		3083	$soundconf = $enc->decode (delete $soundconf->{data});
		3084
		3085	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3086	my $sound = $soundconf->{compat}[$_]
		3087	or next;
		3088
		3089	my $face = cf::face::find "sound/$sound->[1]";
		3090	cf::sound::set $sound->[0] => $face;
		3091	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3092	}
		3093
		3094	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3095	my $face = cf::face::find "sound/$v";
		3096	cf::sound::set $k => $face;
		3097	}
		3098	}
		3099	}
		3100
		3101	1
		3102	}
		3103
		3104	register_exticmd fx_want => sub {
		3105	my ($ns, $want) = @_;
		3106
		3107	while (my ($k, $v) = each %$want) {
		3108	$ns->fx_want ($k, $v);
		3109	}
		3110	};
		3111
		3112	sub reload_regions {
		3113	# HACK to clear player env face cache, we need some signal framework
		3114	# for this (global event?)
		3115	%ext::player_env::MUSIC_FACE_CACHE = ();
		3116
		3117	load_resource_file "$MAPDIR/regions"
		3118	or die "unable to load regions file\n";
		3119
		3120	for (cf::region::list) {
		3121	$_->{match} = qr/$_->{match}/
		3122	if exists $_->{match};
		3123	}
		3124	}
		3125
		3126	sub reload_facedata {
		3127	load_facedata "$DATADIR/facedata"
		3128	or die "unable to load facedata\n";
		3129	}
		3130
		3131	sub reload_archetypes {
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	#d# NEED to laod twice to resolve forward references
		3135	# this really needs to be done in an extra post-pass
		3136	# (which needs to be synchronous, so solve it differently)
		3137	load_resource_file "$DATADIR/archetypes"
		3138	or die "unable to load archetypes\n";
		3139	}
		3140
		3141	sub reload_treasures {
		3142	load_resource_file "$DATADIR/treasures"
		3143	or die "unable to load treasurelists\n";
		3144	}
		3145
		3146	sub reload_resources {
		3147	warn "reloading resource files...\n";
		3148
		3149	reload_regions;
		3150	reload_facedata;
		3151	#reload_archetypes;#d#
		3152	reload_archetypes;
		3153	reload_treasures;
		3154
		3155	warn "finished reloading resource files\n";
		3156	}
		3157
		3158	sub init {
		3159	reload_resources;
		3160	}
		3161
		3162	sub reload_config {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3163	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	3164	or return;
2095		3165
2096	local $/;	3166	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	3167	*CFG = YAML::Syck::Load <$fh>;
2098		3168
…		…
2112		3182
2113	sub main {	3183	sub main {
2114	# we must not ever block the main coroutine	3184	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3185	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3186	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3187	(async {
2117	async { Event::one_event };	3188	Event::one_event;
		3189	})->prio (Coro::PRIO_MAX);
2118	};	3190	};
2119		3191
2120	cfg_load;	3192	reload_config;
2121	db_load;	3193	db_init;
2122	load_extensions;	3194	load_extensions;
		3195
		3196	$TICK_WATCHER->start;
2123	Event::loop;	3197	Event::loop;
2124	}	3198	}
2125		3199
2126	#############################################################################	3200	#############################################################################
2127	# initialisation	3201	# initialisation and cleanup
2128		3202
		3203	# install some emergency cleanup handlers
		3204	BEGIN {
		3205	for my $signal (qw(INT HUP TERM)) {
		3206	Event->signal (
		3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
		3209	signal => $signal,
		3210	prio => 0,
		3211	cb => sub {
		3212	cf::cleanup "SIG$signal";
		3213	},
		3214	);
		3215	}
		3216	}
		3217
		3218	sub write_runtime {
		3219	my $runtime = "$LOCALDIR/runtime";
		3220
		3221	# first touch the runtime file to show we are still running:
		3222	# the fsync below can take a very very long time.
		3223
		3224	IO::AIO::aio_utime $runtime, undef, undef;
		3225
		3226	my $guard = cf::lock_acquire "write_runtime";
		3227
		3228	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3229	or return;
		3230
		3231	my $value = $cf::RUNTIME + 90 + 10;
		3232	# 10 is the runtime save interval, for a monotonic clock
		3233	# 60 allows for the watchdog to kill the server.
		3234
		3235	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3236	and return;
		3237
		3238	# always fsync - this file is important
		3239	aio_fsync $fh
		3240	and return;
		3241
		3242	# touch it again to show we are up-to-date
		3243	aio_utime $fh, undef, undef;
		3244
		3245	close $fh
		3246	or return;
		3247
		3248	aio_rename "$runtime~", $runtime
		3249	and return;
		3250
		3251	warn "runtime file written.\n";
		3252
		3253	1
		3254	}
		3255
		3256	sub emergency_save() {
		3257	my $freeze_guard = cf::freeze_mainloop;
		3258
		3259	warn "enter emergency perl save\n";
		3260
		3261	cf::sync_job {
		3262	# use a peculiar iteration method to avoid tripping on perl
		3263	# refcount bugs in for. also avoids problems with players
		3264	# and maps saved/destroyed asynchronously.
		3265	warn "begin emergency player save\n";
		3266	for my $login (keys %cf::PLAYER) {
		3267	my $pl = $cf::PLAYER{$login} or next;
		3268	$pl->valid or next;
		3269	$pl->save;
		3270	}
		3271	warn "end emergency player save\n";
		3272
		3273	warn "begin emergency map save\n";
		3274	for my $path (keys %cf::MAP) {
		3275	my $map = $cf::MAP{$path} or next;
		3276	$map->valid or next;
		3277	$map->save;
		3278	}
		3279	warn "end emergency map save\n";
		3280
		3281	warn "begin emergency database checkpoint\n";
		3282	BDB::db_env_txn_checkpoint $DB_ENV;
		3283	warn "end emergency database checkpoint\n";
		3284	};
		3285
		3286	warn "leave emergency perl save\n";
		3287	}
		3288
		3289	sub post_cleanup {
		3290	my ($make_core) = @_;
		3291
		3292	warn Carp::longmess "post_cleanup backtrace"
		3293	if $make_core;
		3294	}
		3295
2129	sub reload() {	3296	sub do_reload_perl() {
2130	# can/must only be called in main	3297	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3298	if ($Coro::current != $Coro::main) {
2132	warn "can only reload from main coroutine\n";	3299	warn "can only reload from main coroutine";
2133	return;	3300	return;
2134	}	3301	}
2135		3302
2136	warn "reloading...";	3303	warn "reloading...";
2137		3304
2138	my $guard = freeze_mainloop;	3305	warn "entering sync_job";
		3306
		3307	cf::sync_job {
		3308	cf::write_runtime; # external watchdog should not bark
2139	cf::emergency_save;	3309	cf::emergency_save;
		3310	cf::write_runtime; # external watchdog should not bark
2140		3311
2141	eval {	3312	warn "syncing database to disk";
		3313	BDB::db_env_txn_checkpoint $DB_ENV;
		3314
2142	# if anything goes wrong in here, we should simply crash as we already saved	3315	# if anything goes wrong in here, we should simply crash as we already saved
2143		3316
2144	# cancel all watchers	3317	warn "cancelling all WF_AUTOCANCEL watchers";
2145	for (Event::all_watchers) {	3318	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	3319	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}	3320	}
2148		3321
		3322	warn "flushing outstanding aio requests";
		3323	for (;;) {
		3324	BDB::flush;
		3325	IO::AIO::flush;
		3326	Coro::cede;
		3327	last unless IO::AIO::nreqs || BDB::nreqs;
		3328	warn "iterate...";
		3329	}
		3330
		3331	++$RELOAD;
		3332
2149	# cancel all extension coros	3333	warn "cancelling all extension coros";
2150	$_->cancel for values %EXT_CORO;	3334	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	3335	%EXT_CORO = ();
2152		3336
2153	# unload all extensions	3337	warn "removing commands";
2154	for (@exts) {	3338	%COMMAND = ();
		3339
		3340	warn "removing ext/exti commands";
		3341	%EXTCMD = ();
		3342	%EXTICMD = ();
		3343
		3344	warn "unloading/nuking all extensions";
		3345	for my $pkg (@EXTS) {
2155	warn "unloading <$_>";	3346	warn "... unloading $pkg";
2156	unload_extension $_;	3347
		3348	if (my $cb = $pkg->can ("unload")) {
		3349	eval {
		3350	$cb->($pkg);
		3351	1
		3352	} or warn "$pkg unloaded, but with errors: $@";
2157	}	3353	}
2158		3354
		3355	warn "... nuking $pkg";
		3356	Symbol::delete_package $pkg;
		3357	}
		3358
2159	# unload all modules loaded from $LIBDIR	3359	warn "unloading all perl modules loaded from $LIBDIR";
2160	while (my ($k, $v) = each %INC) {	3360	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162		3362
2163	warn "removing <$k>";	3363	warn "... unloading $k";
2164	delete $INC{$k};	3364	delete $INC{$k};
2165		3365
2166	$k =~ s/\.pm$//;	3366	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;	3367	$k =~ s/\//::/g;
2168		3368
…		…
2171	}	3371	}
2172		3372
2173	Symbol::delete_package $k;	3373	Symbol::delete_package $k;
2174	}	3374	}
2175		3375
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	3376	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3377	Symbol::delete_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		3379
2184	# remove register_script_function callbacks
2185	# TODO
2186
2187	# unload cf.pm "a bit"	3380	warn "unloading cf.pm \"a bit\"";
2188	delete $INC{"cf.pm"};	3381	delete $INC{"cf.pm"};
		3382	delete $INC{"cf/pod.pm"};
2189		3383
2190	# don't, removes xs symbols, too,	3384	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3385	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3386	#Symbol::delete_package __PACKAGE__;
2193		3387
2194	# reload cf.pm	3388	warn "unload completed, starting to reload now";
		3389
2195	warn "reloading cf.pm";	3390	warn "reloading cf.pm";
2196	require cf;	3391	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3392	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2198		3393
2199	# load config and database again	3394	warn "loading config and database again";
2200	cf::cfg_load;	3395	cf::reload_config;
2201	cf::db_load;
2202		3396
2203	# load extensions
2204	warn "load extensions";	3397	warn "loading extensions";
2205	cf::load_extensions;	3398	cf::load_extensions;
2206		3399
2207	# reattach attachments to objects	3400	warn "reattaching attachments to objects/players";
2208	warn "reattach";	3401	_global_reattach; # objects, sockets
2209	_global_reattach;	3402	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	3403	reattach $_ for values %MAP;
2211	};	3404	warn "reattaching attachments to players";
		3405	reattach $_ for values %PLAYER;
2212		3406
2213	if ($@) {	3407	warn "leaving sync_job";
		3408
		3409	1
		3410	} or do {
2214	warn $@;	3411	warn $@;
2215	warn "error while reloading, exiting.";	3412	warn "error while reloading, exiting.";
2216	exit 1;	3413	exit 1;
2217	}	3414	};
2218		3415
2219	warn "reloaded successfully";	3416	warn "reloaded";
2220	};	3417	};
2221		3418
2222	#############################################################################	3419	our $RELOAD_WATCHER; # used only during reload
2223		3420
2224	unless ($LINK_MAP) {	3421	sub reload_perl() {
2225	$LINK_MAP = cf::map::new;	3422	# doing reload synchronously and two reloads happen back-to-back,
		3423	# coro crashes during coro_state_free->destroy here.
2226		3424
2227	$LINK_MAP->width (41);	3425	$RELOAD_WATCHER ||= Event->timer (
2228	$LINK_MAP->height (41);	3426	reentrant => 0,
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,	3427	after => 0,
		3428	data => WF_AUTOCANCEL,
2237	cb => sub {	3429	cb => sub {
2238	$_[0]->w->cancel;	3430	do_reload_perl;
2239		3431	undef $RELOAD_WATCHER;
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});	3432	},
2258		3433	);
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	3434	}
2264
2265	register "<global>", __PACKAGE__;
2266		3435
2267	register_command "reload" => sub {	3436	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	3437	my ($who, $arg) = @_;
2269		3438
2270	if ($who->flag (FLAG_WIZ)) {	3439	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	3440	$who->message ("reloading server.");
		3441	async { reload_perl };
2274	}	3442	}
2275	};	3443	};
2276		3444
2277	unshift @INC, $LIBDIR;	3445	unshift @INC, $LIBDIR;
		3446
		3447	my $bug_warning = 0;
		3448
		3449	our @WAIT_FOR_TICK;
		3450	our @WAIT_FOR_TICK_BEGIN;
		3451
		3452	sub wait_for_tick {
		3453	return unless $TICK_WATCHER->is_active;
		3454	return if $Coro::current == $Coro::main;
		3455
		3456	my $signal = new Coro::Signal;
		3457	push @WAIT_FOR_TICK, $signal;
		3458	$signal->wait;
		3459	}
		3460
		3461	sub wait_for_tick_begin {
		3462	return unless $TICK_WATCHER->is_active;
		3463	return if $Coro::current == $Coro::main;
		3464
		3465	my $signal = new Coro::Signal;
		3466	push @WAIT_FOR_TICK_BEGIN, $signal;
		3467	$signal->wait;
		3468	}
2278		3469
2279	$TICK_WATCHER = Event->timer (	3470	$TICK_WATCHER = Event->timer (
2280	reentrant => 0,	3471	reentrant => 0,
		3472	parked => 1,
2281	prio => 0,	3473	prio => 0,
2282	at => $NEXT_TICK || $TICK,	3474	at => $NEXT_TICK || $TICK,
2283	data => WF_AUTOCANCEL,	3475	data => WF_AUTOCANCEL,
2284	cb => sub {	3476	cb => sub {
		3477	if ($Coro::current != $Coro::main) {
		3478	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3479	unless ++$bug_warning > 10;
		3480	return;
		3481	}
		3482
		3483	$NOW = $tick_start = Event::time;
		3484
2285	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2286	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2288		3489
		3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
		3506
2289	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2291		3509
2292	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2293	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
2294	},	3517	},
2295	);	3518	);
2296		3519
		3520	{
		3521	BDB::min_parallel 8;
2297	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2298		3523	$BDB_POLL_WATCHER = Event->io (
2299	Event->io (	3524	reentrant => 0,
2300	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2301	poll => 'r',	3526	poll => 'r',
2302	prio => 5,	3527	prio => 0,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3550	| BDB::LOG_AUTOREMOVE, 1);
		3551	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3552	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3553
		3554	cf::sync_job {
		3555	eval {
		3556	BDB::db_env_open
		3557	$DB_ENV,
		3558	$BDBDIR,
		3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3561	0666;
		3562
		3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_DEADLOCK_WATCHER = Event->timer (
2309	after => 0,	3571	after => 3,
2310	interval => 10,	3572	interval => 1,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2311	cb => sub {	3576	cb => sub {
2312	(Coro::unblock_sub {	3577	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2313	write_runtime	3578	},
2314	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3581	after => 11,
		3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3588	},
		3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
		3600	}
		3601
		3602	{
		3603	IO::AIO::min_parallel 8;
		3604
		3605	undef $Coro::AIO::WATCHER;
		3606	IO::AIO::max_poll_time $TICK * 0.1;
		3607	$AIO_POLL_WATCHER = Event->io (
		3608	reentrant => 0,
		3609	data => WF_AUTOCANCEL,
		3610	fd => IO::AIO::poll_fileno,
		3611	poll => 'r',
		3612	prio => 6,
		3613	cb => \&IO::AIO::poll_cb,
		3614	);
		3615	}
		3616
		3617	my $_log_backtrace;
		3618
		3619	sub _log_backtrace {
		3620	my ($msg, @addr) = @_;
		3621
		3622	$msg =~ s/\n//;
		3623
		3624	# limit the # of concurrent backtraces
		3625	if ($_log_backtrace < 2) {
		3626	++$_log_backtrace;
		3627	async {
		3628	my @bt = fork_call {
		3629	@addr = map { sprintf "%x", $_ } @addr;
		3630	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3631	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3632	or die "addr2line: $!";
		3633
		3634	my @funcs;
		3635	my @res = <$fh>;
		3636	chomp for @res;
		3637	while (@res) {
		3638	my ($func, $line) = splice @res, 0, 2, ();
		3639	push @funcs, "[$func] $line";
		3640	}
		3641
		3642	@funcs
		3643	};
		3644
		3645	LOG llevInfo, "[ABT] $msg\n";
		3646	LOG llevInfo, "[ABT] $_\n" for @bt;
		3647	--$_log_backtrace;
2315	})->();	3648	};
		3649	} else {
		3650	LOG llevInfo, "[ABT] $msg\n";
		3651	LOG llevInfo, "[ABT] [suppressed]\n";
2316	},	3652	}
2317	);	3653	}
		3654
		3655	# load additional modules
		3656	use cf::pod;
2318		3657
2319	END { cf::emergency_save }	3658	END { cf::emergency_save }
2320		3659
2321	1	3660	1
2322		3661

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