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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.373 by root, Sat Sep 15 15:58:06 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 ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28		44
29	# 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?
30	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
31		47
32	$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
33		49
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	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(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	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;
47		89
48	our %CFG;	90	our %CFG;
49		91
50	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	93	our $RUNTIME;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	98
57	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 $tick_start; # for load detecting purposes
58		105
59	binmode STDOUT;	106	binmode STDOUT;
60	binmode STDERR;	107	binmode STDERR;
61		108
62	# read virtual server time, if available	109	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
67	}	114	}
68		115
69	mkdir cf::localdir;	116	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		118
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	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
92	every server tick.	136	every server tick.
93		137
94	=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
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	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.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123		194
124	LOG llevError, $msg;	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		206
135	# 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
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	249	$d
180	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
181	}	251	}
182		252
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
186		254
187	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
188		256
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
197		258
198	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
199		260
200	=cut	261	=cut
201		262
202	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
204	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
205	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
206		267
207	=item cf::lock_wait $string	268	=item cf::lock_wait $string
208		269
209	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
210		271
…		…
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
216	returned.	277	returned.
217		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
218	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
219	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
220		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
221	=cut	289	=cut
222		290
223	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
224		293
225	sub lock_wait($) {	294	sub lock_wait($) {
226	my ($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#
227		301
228	# wait for lock, if any	302	# wait for lock, if any
229	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	305	Coro::schedule;
…		…
237		311
238	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
239	lock_wait $key;	313	lock_wait $key;
240		314
241	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
242		317
243	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
246	}	322	}
247	}	323	}
248		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
249	sub freeze_mainloop {	331	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
251		333
252	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
253	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
254	$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;
255	}	395	}
256		396
257	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
258		398
259	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		404
265	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
266		406
267	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
268		408
269	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)
270	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
271	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.
272		413
273	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
274	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
275	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
276	fast or be very important.	417	fast or be very important.
…		…
279		420
280	sub sync_job(&) {	421	sub sync_job(&) {
281	my ($job) = @_;	422	my ($job) = @_;
282		423
283	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
284	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
286		429
287	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
299		442
300	while ($busy) {	443	while ($busy) {
301	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
302	}	445	}
303		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
304	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
305	} else {	455	} else {
306	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
307		457
308	$job->()	458	$job->()
309	}	459	}
310	}	460	}
311		461
312	=item $coro = cf::async_ext { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
313		463
314	Like async, but this coro is automcatially being canceled when the	464	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	465	extension calling this is being unloaded.
316		466
317	=cut	467	=cut
318		468
319	sub async_ext(&) {	469	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
328		478
329	$coro	479	$coro
330	}	480	}
331		481
332	sub write_runtime {	482	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		483
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
336	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.
337		488
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		490
342	aio_fsync $fh	491	sub fork_call(&@) {
343	and return;	492	my ($cb, @args) = @_;
344		493
345	close $fh	494	# we seemingly have to make a local copy of the whole thing,
346	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
347		497
348	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
349	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
350		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
351	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 });
352	}	642	}
353		643
354	=back	644	=back
355		645
356	=cut	646	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		647
480	#############################################################################	648	#############################################################################
481		649
482	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
483		651
…		…
485	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")
486	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
487		655
488	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>
489	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
490	crossfire+).	658	Crossfire TRT).
491		659
492	=over 4	660	=over 4
493		661
494	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
495		663
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	778	our @CB_MAP = ();
611		779
612	my %attachment;	780	my %attachment;
613		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
614	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
616		790
617	use sort 'stable';	791	use sort 'stable';
618		792
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
653		827
654	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		832
659	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	834	my $pkg = shift @arg;
661		835
662	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
692	}	866	}
693		867
694	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
695	} else {	869	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	871	}
698		872
699	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
700	}	874	}
701		875
…		…
703	if (ref $_[0]) {	877	if (ref $_[0]) {
704	_object_attach @_;	878	_object_attach @_;
705	} else {	879	} else {
706	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
707	}	881	}
		882	_recalc_want;
708	};	883	};
709		884
710	# all those should be optimised	885	# all those should be optimised
711	sub cf::attachable::detach {	886	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
716	reattach ($obj);	891	reattach ($obj);
717	} else {	892	} else {
718	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
719	}	894	}
		895	_recalc_want;
720	};	896	};
721		897
722	sub cf::attachable::attached {	898	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
724		900
…		…
739	";	915	";
740	die if $@;	916	die if $@;
741	}	917	}
742		918
743	our $override;	919	our $override;
744	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?
745		921
746	sub override {	922	sub override {
747	$override = 1;	923	$override = 1;
748	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
749	}	925	}
750		926
751	sub do_invoke {	927	sub do_invoke {
752	my $event = shift;	928	my $event = shift;
753	my $callbacks = shift;	929	my $callbacks = shift;
754		930
755	@invoke_results = ();	931	@INVOKE_RESULTS = ();
756		932
757	local $override;	933	local $override;
758		934
759	for (@$callbacks) {	935	for (@$callbacks) {
760	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
777		953
778	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
779		955
780	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
781	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
782	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		959
784	=back	960	=back
785		961
786	=cut	962	=cut
787		963
788	#############################################################################	964	#############################################################################
789	# 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	}
790		977
791	sub reattach {	978	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		983
795	my $registry = $obj->registry;	984	my $registry = $obj->registry;
796		985
797	@$registry = ();	986	@$registry = ();
798		987
…		…
839	sub object_freezer_save {	1028	sub object_freezer_save {
840	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
841		1030
842	sync_job {	1031	sync_job {
843	if (length $$rdata) {	1032	if (length $$rdata) {
		1033	utf8::decode (my $decname = $filename);
844	warn sprintf "saving %s (%d,%d)\n",	1034	warn sprintf "saving %s (%d,%d)\n",
845	$filename, length $$rdata, scalar @$objs;	1035	$decname, length $$rdata, scalar @$objs;
846		1036
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1037	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1038	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1039	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1040	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1041	close $fh;
852		1042
853	if (@$objs) {	1043	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1044	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1045	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1046	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1047	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1048	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1049	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1050	aio_rename "$filename.pst~", "$filename.pst";
861	}	1051	}
862	} else {	1052	} else {
863	aio_unlink "$filename.pst";	1053	aio_unlink "$filename.pst";
…		…
869	}	1059	}
870	} else {	1060	} else {
871	aio_unlink $filename;	1061	aio_unlink $filename;
872	aio_unlink "$filename.pst";	1062	aio_unlink "$filename.pst";
873	}	1063	}
874	}	1064	};
875	}	1065	}
876		1066
877	sub object_freezer_as_string {	1067	sub object_freezer_as_string {
878	my ($rdata, $objs) = @_;	1068	my ($rdata, $objs) = @_;
879		1069
…		…
891	or return;	1081	or return;
892		1082
893	unless (aio_stat "$filename.pst") {	1083	unless (aio_stat "$filename.pst") {
894	(aio_load "$filename.pst", $av) >= 0	1084	(aio_load "$filename.pst", $av) >= 0
895	or return;	1085	or return;
		1086
896	$av = eval { (Storable::thaw $av)->{objs} };	1087	$av = eval { (Storable::thaw $av)->{objs} };
897	}	1088	}
898		1089
		1090	utf8::decode (my $decname = $filename);
899	warn sprintf "loading %s (%d)\n",	1091	warn sprintf "loading %s (%d,%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1092	$decname, length $data, scalar @{$av || []};
		1093
901	return ($data, $av);	1094	($data, $av)
902	}	1095	}
		1096
		1097	=head2 COMMAND CALLBACKS
		1098
		1099	=over 4
		1100
		1101	=cut
903		1102
904	#############################################################################	1103	#############################################################################
905	# command handling &c	1104	# command handling &c
906		1105
907	=item cf::register_command $name => \&callback($ob,$args);	1106	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1119	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1120	}
922		1121
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1122	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1123
925	Register a callbackf ro execution when the client sends an extcmd packet.	1124	Register a callback for execution when the client sends an (synchronous)
		1125	extcmd packet. Ext commands will be processed in the order they are
		1126	received by the server, like other user commands. The first argument is
		1127	the logged-in player. Ext commands can only be processed after a player
		1128	has logged in successfully.
926		1129
927	If the callback returns something, it is sent back as if reply was being	1130	If the callback returns something, it is sent back as if reply was being
928	called.	1131	called.
929		1132
		1133	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1134
		1135	Register a callback for execution when the client sends an (asynchronous)
		1136	exticmd packet. Exti commands are processed by the server as soon as they
		1137	are received, i.e. out of order w.r.t. other commands. The first argument
		1138	is a client socket. Exti commands can be received anytime, even before
		1139	log-in.
		1140
		1141	If the callback returns something, it is sent back as if reply was being
		1142	called.
		1143
930	=cut	1144	=cut
931		1145
932	sub register_extcmd {	1146	sub register_extcmd {
933	my ($name, $cb) = @_;	1147	my ($name, $cb) = @_;
934		1148
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1149	$EXTCMD{$name} = $cb;
		1150	}
		1151
		1152	sub register_exticmd {
		1153	my ($name, $cb) = @_;
		1154
		1155	$EXTICMD{$name} = $cb;
939	}	1156	}
940		1157
941	cf::player->attach (	1158	cf::player->attach (
942	on_command => sub {	1159	on_command => sub {
943	my ($pl, $name, $params) = @_;	1160	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1169	cf::override;
953	},	1170	},
954	on_extcmd => sub {	1171	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1172	my ($pl, $buf) = @_;
956		1173
957	my $msg = eval { from_json $buf };	1174	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1175
959	if (ref $msg) {	1176	if (ref $msg) {
		1177	my ($type, $reply, @payload) =
		1178	"ARRAY" eq ref $msg
		1179	? @$msg
		1180	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1181
		1182	my @reply;
		1183
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1184	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1185	@reply = $cb->($pl, @payload);
962	$pl->ext_reply ($msg->{msgid}, %reply);
963	}
964	}	1186	}
		1187
		1188	$pl->ext_reply ($reply, @reply)
		1189	if $reply;
		1190
965	} else {	1191	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1193	}
968		1194
969	cf::override;	1195	cf::override;
970	},	1196	},
971	);	1197	);
972		1198
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {
980	my ($path) = @_;
981
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;
984	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}
1048
1049	sub load_extensions {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
1050	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1204	next unless -r $path;
1052	eval {	1205
1053	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
1054	1	1263	}
1055	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
1056	}	1269	};
1057	}	1270	}
1058		1271
1059	#############################################################################	1272	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1273
1062	*cf::mapsupport::on_clean = sub {	1274	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1275
1097	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
1098		1277
1099	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
1100		1279
…		…
1106		1285
1107	=head3 cf::player	1286	=head3 cf::player
1108		1287
1109	=over 4	1288	=over 4
1110		1289
		1290	=item cf::player::num_playing
		1291
		1292	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1293
		1294	=cut
		1295
		1296	sub num_playing {
		1297	scalar grep
		1298	$_->ob->map
		1299	&& !$_->hidden
		1300	&& !$_->ob->flag (cf::FLAG_WIZ),
		1301	cf::player::list
		1302	}
		1303
1111	=item cf::player::find $login	1304	=item cf::player::find $login
1112		1305
1113	Returns the given player object, loading it if necessary (might block).	1306	Returns the given player object, loading it if necessary (might block).
1114		1307
1115	=cut	1308	=cut
1116		1309
1117	sub playerdir($) {	1310	sub playerdir($) {
1118	cf::localdir	1311	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1312	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1313	}
1124		1314
1125	sub path($) {	1315	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1316	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1317
1128	(playerdir $login) . "/$login.pl"	1318	(playerdir $login) . "/playerdata"
1129	}	1319	}
1130		1320
1131	sub find_active($) {	1321	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1322	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1323	and $cf::PLAYER{$_[0]}->active
…		…
1136		1326
1137	sub exists($) {	1327	sub exists($) {
1138	my ($login) = @_;	1328	my ($login) = @_;
1139		1329
1140	$cf::PLAYER{$login}	1330	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1331	or cf::sync_job { !aio_stat path $login }
1142	}	1332	}
1143		1333
1144	sub find($) {	1334	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1335	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1336	my $login = $_[0];
1147		1337
1148	my $guard = cf::lock_acquire "user_find:$login";	1338	my $guard = cf::lock_acquire "user_find:$login";
1149		1339
1150	$cf::PLAYER{$_[0]} || do {	1340	$cf::PLAYER{$_[0]} || do {
1151	my $pl = load_pl path $login	1341	# rename old playerfiles to new ones
		1342	#TODO: remove when no longer required
		1343	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1344	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1345	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1346	aio_unlink +(playerdir $login) . "/$login.pl";
		1347
		1348	my $f = new_from_file cf::object::thawer path $login
1152	or return;	1349	or return;
		1350
		1351	my $pl = cf::player::load_pl $f
		1352	or return;
		1353	local $cf::PLAYER_LOADING{$login} = $pl;
		1354	$f->resolve_delayed_derefs;
1153	$cf::PLAYER{$login} = $pl	1355	$cf::PLAYER{$login} = $pl
1154	}	1356	}
1155	}	1357	}
1156	}	1358	}
1157		1359
…		…
1167		1369
1168	aio_mkdir playerdir $pl, 0770;	1370	aio_mkdir playerdir $pl, 0770;
1169	$pl->{last_save} = $cf::RUNTIME;	1371	$pl->{last_save} = $cf::RUNTIME;
1170		1372
1171	$pl->save_pl ($path);	1373	$pl->save_pl ($path);
1172	Coro::cede;	1374	cf::cede_to_tick;
1173	}	1375	}
1174		1376
1175	sub new($) {	1377	sub new($) {
1176	my ($login) = @_;	1378	my ($login) = @_;
1177		1379
…		…
1183	$cf::PLAYER{$login} = $self;	1385	$cf::PLAYER{$login} = $self;
1184		1386
1185	$self	1387	$self
1186	}	1388	}
1187		1389
		1390	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1391
		1392	=cut
		1393
		1394	sub send_msg {
		1395	my $ns = shift->ns
		1396	or return;
		1397	$ns->send_msg (@_);
		1398	}
		1399
1188	=item $pl->quit_character	1400	=item $pl->quit_character
1189		1401
1190	Nukes the player without looking back. If logged in, the connection will	1402	Nukes the player without looking back. If logged in, the connection will
1191	be destroyed. May block for a long time.	1403	be destroyed. May block for a long time.
1192		1404
1193	=cut	1405	=cut
1194		1406
1195	sub quit_character {	1407	sub quit_character {
1196	my ($pl) = @_;	1408	my ($pl) = @_;
		1409
		1410	my $name = $pl->ob->name;
1197		1411
1198	$pl->{deny_save} = 1;	1412	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1413	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1414
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1415	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1420	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1421	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1422	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1423	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1424	$pl->destroy;
		1425
		1426	my $prefix = qr<^~\Q$name\E/>;
		1427
		1428	# nuke player maps
		1429	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1430
1211	IO::AIO::aio_rmtree $temp;	1431	IO::AIO::aio_rmtree $temp;
		1432	}
		1433
		1434	=item $pl->kick
		1435
		1436	Kicks a player out of the game. This destroys the connection.
		1437
		1438	=cut
		1439
		1440	sub kick {
		1441	my ($pl, $kicker) = @_;
		1442
		1443	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1444	$pl->killer ("kicked");
		1445	$pl->ns->destroy;
1212	}	1446	}
1213		1447
1214	=item cf::player::list_logins	1448	=item cf::player::list_logins
1215		1449
1216	Returns am arrayref of all valid playernames in the system, can take a	1450	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1451	while and may block, so not sync_job-capable, ever.
1218		1452
1219	=cut	1453	=cut
1220		1454
1221	sub list_logins {	1455	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1456	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1457	or return [];
1224		1458
1225	my @logins;	1459	my @logins;
1226		1460
1227	for my $login (@$dirs) {	1461	for my $login (@$dirs) {
		1462	my $path = path $login;
		1463
		1464	# a .pst is a dead give-away for a valid player
		1465	unless (-e "$path.pst") {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1466	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1467	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1468	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1469	}
1231		1470
1232	utf8::decode $login;	1471	utf8::decode $login;
1233	push @logins, $login;	1472	push @logins, $login;
1234	}	1473	}
1235		1474
1236	\@logins	1475	\@logins
1237	}	1476	}
1238		1477
1239	=item $player->maps	1478	=item $player->maps
1240		1479
1241	Returns an arrayref of cf::path's of all maps that are private for this	1480	Returns an arrayref of map paths that are private for this
1242	player. May block.	1481	player. May block.
1243		1482
1244	=cut	1483	=cut
1245		1484
1246	sub maps($) {	1485	sub maps($) {
1247	my ($pl) = @_;	1486	my ($pl) = @_;
		1487
		1488	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1489
1249	my $files = aio_readdir playerdir $pl	1490	my $files = aio_readdir playerdir $pl
1250	or return;	1491	or return;
1251		1492
1252	my @paths;	1493	my @paths;
1253		1494
1254	for (@$files) {	1495	for (@$files) {
1255	utf8::decode $_;	1496	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1497	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1498	next unless /^$PATH_SEP/o;
1258		1499
1259	s/$PATH_SEP/\//g;	1500	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1501	}
1262		1502
1263	\@paths	1503	\@paths
1264	}	1504	}
1265		1505
		1506	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1507
		1508	Expand crossfire pod fragments into protocol xml.
		1509
		1510	=cut
		1511
		1512	sub expand_cfpod {
		1513	((my $self), (local $_)) = @_;
		1514
		1515	# escape & and <
		1516	s/&/&amp;/g;
		1517	s/(?<![BIUGHT])</&lt;/g;
		1518
		1519	# this is buggy, it needs to properly take care of nested <'s
		1520
		1521	1 while
		1522	# replace B<>, I<>, U<> etc.
		1523	s/B<([^\>]*)>/<b>$1<\/b>/
		1524	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1525	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1526	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1527	# replace G<male|female> tags
		1528	|| s{G<([^>|]*)\|([^>]*)>}{
		1529	$self->gender ? $2 : $1
		1530	}ge
		1531	# replace H<hint text>
		1532	|| s{H<([^\>]*)>}
		1533	{
		1534	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1535	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1536	"")
		1537	[$self->{hintmode}]
		1538	}ge;
		1539
		1540	# create single paragraphs (very hackish)
		1541	s/(?<=\S)\n(?=\w)/ /g;
		1542
		1543	# compress some whitespace
		1544	s/\s+\n/\n/g; # ws line-ends
		1545	s/\n\n+/\n/g; # double lines
		1546	s/^\n+//; # beginning lines
		1547	s/\n+$//; # ending lines
		1548
		1549	$_
		1550	}
		1551
		1552	sub hintmode {
		1553	$_[0]{hintmode} = $_[1] if @_ > 1;
		1554	$_[0]{hintmode}
		1555	}
		1556
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1557	=item $player->ext_reply ($msgid, @msg)
1267		1558
1268	Sends an ext reply to the player.	1559	Sends an ext reply to the player.
1269		1560
1270	=cut	1561	=cut
1271		1562
1272	sub ext_reply($$$%) {	1563	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1564	my ($self, $id, @msg) = @_;
1274		1565
1275	$msg{msgid} = $id;	1566	$self->ns->ext_reply ($id, @msg)
1276
1277	$self->send ("ext " . cf::to_json \%msg);
1278	}	1567	}
1279		1568
1280	package cf;	1569	=item $player->ext_msg ($type, @msg)
		1570
		1571	Sends an ext event to the client.
		1572
		1573	=cut
		1574
		1575	sub ext_msg($$@) {
		1576	my ($self, $type, @msg) = @_;
		1577
		1578	$self->ns->ext_msg ($type, @msg);
		1579	}
		1580
		1581	=head3 cf::region
		1582
		1583	=over 4
		1584
		1585	=cut
		1586
		1587	package cf::region;
		1588
		1589	=item cf::region::find_by_path $path
		1590
		1591	Tries to decuce the likely region for a map knowing only its path.
		1592
		1593	=cut
		1594
		1595	sub find_by_path($) {
		1596	my ($path) = @_;
		1597
		1598	my ($match, $specificity);
		1599
		1600	for my $region (list) {
		1601	if ($region->{match} && $path =~ $region->{match}) {
		1602	($match, $specificity) = ($region, $region->specificity)
		1603	if $region->specificity > $specificity;
		1604	}
		1605	}
		1606
		1607	$match
		1608	}
1281		1609
1282	=back	1610	=back
1283
1284		1611
1285	=head3 cf::map	1612	=head3 cf::map
1286		1613
1287	=over 4	1614	=over 4
1288		1615
…		…
1291	package cf::map;	1618	package cf::map;
1292		1619
1293	use Fcntl;	1620	use Fcntl;
1294	use Coro::AIO;	1621	use Coro::AIO;
1295		1622
		1623	use overload
		1624	'""' => \&as_string,
		1625	fallback => 1;
		1626
1296	our $MAX_RESET = 3600;	1627	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1628	our $DEFAULT_RESET = 3000;
1298		1629
1299	sub generate_random_map {	1630	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1631	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1632	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1633	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1634	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1635	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1636	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1637	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1638	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1639	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1640	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1641	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1642	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1643	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1644	(cf::region::find $rmp->{region}), $rmp->{custom}
		1645	)
		1646	}
		1647
		1648	=item cf::map->register ($regex, $prio)
		1649
		1650	Register a handler for the map path matching the given regex at the
		1651	givne priority (higher is better, built-in handlers have priority 0, the
		1652	default).
		1653
		1654	=cut
		1655
		1656	sub register {
		1657	my (undef, $regex, $prio) = @_;
		1658	my $pkg = caller;
		1659
		1660	no strict;
		1661	push @{"$pkg\::ISA"}, __PACKAGE__;
		1662
		1663	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1664	}
		1665
		1666	# also paths starting with '/'
		1667	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1668
		1669	sub thawer_merge {
		1670	my ($self, $merge) = @_;
		1671
		1672	# we have to keep some variables in memory intact
		1673	local $self->{path};
		1674	local $self->{load_path};
		1675
		1676	$self->SUPER::thawer_merge ($merge);
		1677	}
		1678
		1679	sub normalise {
		1680	my ($path, $base) = @_;
		1681
		1682	$path = "$path"; # make sure its a string
		1683
		1684	$path =~ s/\.map$//;
		1685
		1686	# map plan:
		1687	#
		1688	# /! non-realised random map exit (special hack!)
		1689	# {... are special paths that are not being touched
		1690	# ?xxx/... are special absolute paths
		1691	# ?random/... random maps
		1692	# /... normal maps
		1693	# ~user/... per-player map of a specific user
		1694
		1695	$path =~ s/$PATH_SEP/\//go;
		1696
		1697	# treat it as relative path if it starts with
		1698	# something that looks reasonable
		1699	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1700	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1701
		1702	$base =~ s{[^/]+/?$}{};
		1703	$path = "$base/$path";
		1704	}
		1705
		1706	for ($path) {
		1707	redo if s{//}{/};
		1708	redo if s{/\.?/}{/};
		1709	redo if s{/[^/]+/\.\./}{/};
		1710	}
		1711
		1712	$path
		1713	}
		1714
		1715	sub new_from_path {
		1716	my (undef, $path, $base) = @_;
		1717
		1718	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1719
		1720	$path = normalise $path, $base;
		1721
		1722	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1723	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1724	my $self = bless cf::map::new, $pkg;
		1725	$self->{path} = $path; $self->path ($path);
		1726	$self->init; # pass $1 etc.
		1727	return $self;
		1728	}
		1729	}
		1730
		1731	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1732	()
		1733	}
		1734
		1735	sub init {
		1736	my ($self) = @_;
		1737
		1738	$self
		1739	}
		1740
		1741	sub as_string {
		1742	my ($self) = @_;
		1743
		1744	"$self->{path}"
		1745	}
		1746
		1747	# the displayed name, this is a one way mapping
		1748	sub visible_name {
		1749	&as_string
		1750	}
		1751
		1752	# the original (read-only) location
		1753	sub load_path {
		1754	my ($self) = @_;
		1755
		1756	"$MAPDIR/$self->{path}.map"
		1757	}
		1758
		1759	# the temporary/swap location
		1760	sub save_path {
		1761	my ($self) = @_;
		1762
		1763	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1764	"$TMPDIR/$path.map"
		1765	}
		1766
		1767	# the unique path, undef == no special unique path
		1768	sub uniq_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$UNIQUEDIR/$path"
1316	}	1773	}
1317		1774
1318	# and all this just because we cannot iterate over	1775	# and all this just because we cannot iterate over
1319	# all maps in C++...	1776	# all maps in C++...
1320	sub change_all_map_light {	1777	sub change_all_map_light {
…		…
1322		1779
1323	$_->change_map_light ($change)	1780	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1781	for grep $_->outdoor, values %cf::MAP;
1325	}	1782	}
1326		1783
		1784	sub decay_objects {
		1785	my ($self) = @_;
		1786
		1787	return if $self->{deny_reset};
		1788
		1789	$self->do_decay_objects;
		1790	}
		1791
		1792	sub unlink_save {
		1793	my ($self) = @_;
		1794
		1795	utf8::encode (my $save = $self->save_path);
		1796	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1797	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1798	}
		1799
1327	sub try_load_header($) {	1800	sub load_header_from($) {
1328	my ($path) = @_;	1801	my ($self, $path) = @_;
1329		1802
1330	utf8::encode $path;	1803	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1804	my $f = new_from_file cf::object::thawer $path
1332	or return;	1805	or return;
1333		1806
1334	my $map = cf::map::new	1807	$self->_load_header ($f)
1335	or return;	1808	or return;
1336		1809
1337	# for better error messages only, will be overwritten	1810	local $MAP_LOADING{$self->{path}} = $self;
1338	$map->path ($path);	1811	$f->resolve_delayed_derefs;
1339		1812
1340	$map->load_header ($path)	1813	$self->{load_path} = $path;
		1814
		1815	1
		1816	}
		1817
		1818	sub load_header_orig {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->load_path)
		1822	}
		1823
		1824	sub load_header_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->load_header_from ($self->save_path)
		1828	}
		1829
		1830	sub prepare_temp {
		1831	my ($self) = @_;
		1832
		1833	$self->last_access ((delete $self->{last_access})
		1834	|| $cf::RUNTIME); #d#
		1835	# safety
		1836	$self->{instantiate_time} = $cf::RUNTIME
		1837	if $self->{instantiate_time} > $cf::RUNTIME;
		1838	}
		1839
		1840	sub prepare_orig {
		1841	my ($self) = @_;
		1842
		1843	$self->{load_original} = 1;
		1844	$self->{instantiate_time} = $cf::RUNTIME;
		1845	$self->last_access ($cf::RUNTIME);
		1846	$self->instantiate;
		1847	}
		1848
		1849	sub load_header {
		1850	my ($self) = @_;
		1851
		1852	if ($self->load_header_temp) {
		1853	$self->prepare_temp;
		1854	} else {
		1855	$self->load_header_orig
1341	or return;	1856	or return;
		1857	$self->prepare_orig;
		1858	}
1342		1859
1343	$map->{load_path} = $path;	1860	$self->{deny_reset} = 1
		1861	if $self->no_reset;
1344		1862
1345	$map	1863	$self->default_region (cf::region::find_by_path $self->{path})
		1864	unless $self->default_region;
		1865
		1866	1
1346	}	1867	}
1347		1868
1348	sub find;	1869	sub find;
1349	sub find {	1870	sub find {
1350	my ($path, $origin) = @_;	1871	my ($path, $origin) = @_;
1351		1872
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1873	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1874
		1875	cf::lock_wait "map_data:$path";#d#remove
1357	cf::lock_wait "map_find:$key";	1876	cf::lock_wait "map_find:$path";
1358		1877
1359	$cf::MAP{$key} || do {	1878	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1879	my $guard1 = cf::lock_acquire "map_find:$path";
		1880	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1361		1881
1362	# do it the slow way	1882	my $map = new_from_path cf::map $path
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1883	or return;
1381		1884
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1885	$map->{last_save} = $cf::RUNTIME;
1394		1886
1395	Coro::cede;	1887	$map->load_header
		1888	or return;
1396		1889
1397	if ($map->should_reset) {	1890	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1891	# doing this can freeze the server in a sync job, obviously
		1892	#$cf::WAIT_FOR_TICK->wait;
		1893	undef $guard1;
		1894	undef $guard2;
1398	$map->reset;	1895	$map->reset;
1399	undef $guard;
1400	$map = find $path	1896	return find $path;
1401	or return;
1402	}	1897	}
1403		1898
1404	$cf::MAP{$key} = $map	1899	$cf::MAP{$path} = $map
1405	}	1900	}
1406	}	1901	}
		1902
		1903	sub pre_load { }
		1904	sub post_load { }
1407		1905
1408	sub load {	1906	sub load {
1409	my ($self) = @_;	1907	my ($self) = @_;
1410		1908
		1909	local $self->{deny_reset} = 1; # loading can take a long time
		1910
1411	my $path = $self->{path};	1911	my $path = $self->{path};
		1912
		1913	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1914	my $guard = cf::lock_acquire "map_data:$path";
1413		1915
		1916	return unless $self->valid;
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1917	return unless $self->in_memory == cf::MAP_SWAPPED;
1415		1918
1416	$self->in_memory (cf::MAP_LOADING);	1919	$self->in_memory (cf::MAP_LOADING);
1417		1920
1418	$self->alloc;	1921	$self->alloc;
1419	$self->load_objects ($self->{load_path}, 1)	1922
		1923	$self->pre_load;
		1924	cf::cede_to_tick;
		1925
		1926	my $f = new_from_file cf::object::thawer $self->{load_path};
		1927	$f->skip_block;
		1928	$self->_load_objects ($f)
1420	or return;	1929	or return;
1421		1930
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1931	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1932	if delete $self->{load_original};
1424		1933
1425	if (my $uniq = $path->uniq_path) {	1934	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1935	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1936	unless (aio_stat $uniq) {
		1937	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	1938	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1939	$self->_load_objects ($f);
		1940	$f->resolve_delayed_derefs;
		1941	}
1430	}	1942	}
1431	}	1943	}
1432		1944
1433	Coro::cede;	1945	$f->resolve_delayed_derefs;
1434		1946
		1947	cf::cede_to_tick;
1435	# now do the right thing for maps	1948	# now do the right thing for maps
1436	$self->link_multipart_objects;	1949	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	1950	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1951	unless $self->difficulty;
		1952	cf::cede_to_tick;
		1953
		1954	unless ($self->{deny_activate}) {
		1955	$self->decay_objects;
		1956	$self->fix_auto_apply;
		1957	$self->update_buttons;
		1958	cf::cede_to_tick;
		1959	$self->set_darkness_map;
		1960	cf::cede_to_tick;
1448	$self->activate;	1961	$self->activate;
1449	}	1962	}
1450		1963
1451	Coro::cede;	1964	$self->{last_save} = $cf::RUNTIME;
		1965	$self->last_access ($cf::RUNTIME);
1452		1966
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1967	$self->in_memory (cf::MAP_IN_MEMORY);
		1968	}
		1969
		1970	$self->post_load;
		1971	}
		1972
		1973	sub customise_for {
		1974	my ($self, $ob) = @_;
		1975
		1976	return find "~" . $ob->name . "/" . $self->{path}
		1977	if $self->per_player;
		1978
		1979	# return find "?party/" . $ob->name . "/" . $self->{path}
		1980	# if $self->per_party;
		1981
		1982	$self
		1983	}
		1984
		1985	# find and load all maps in the 3x3 area around a map
		1986	sub load_neighbours {
		1987	my ($map) = @_;
		1988
		1989	my @neigh; # diagonal neighbours
		1990
		1991	for (0 .. 3) {
		1992	my $neigh = $map->tile_path ($_)
		1993	or next;
		1994	$neigh = find $neigh, $map
		1995	or next;
		1996	$neigh->load;
		1997
		1998	push @neigh,
		1999	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2000	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2001	}
		2002
		2003	for (grep defined $_->[0], @neigh) {
		2004	my ($path, $origin) = @$_;
		2005	my $neigh = find $path, $origin
		2006	or next;
		2007	$neigh->load;
		2008	}
1454	}	2009	}
1455		2010
1456	sub find_sync {	2011	sub find_sync {
1457	my ($path, $origin) = @_;	2012	my ($path, $origin) = @_;
1458		2013
1459	cf::sync_job { cf::map::find $path, $origin }	2014	cf::sync_job { find $path, $origin }
1460	}	2015	}
1461		2016
1462	sub do_load_sync {	2017	sub do_load_sync {
1463	my ($map) = @_;	2018	my ($map) = @_;
1464		2019
		2020	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2021	if $Coro::current == $Coro::main;
		2022
1465	cf::sync_job { $map->load };	2023	cf::sync_job { $map->load };
		2024	}
		2025
		2026	our %MAP_PREFETCH;
		2027	our $MAP_PREFETCHER = undef;
		2028
		2029	sub find_async {
		2030	my ($path, $origin, $load) = @_;
		2031
		2032	$path = normalise $path, $origin && $origin->{path};
		2033
		2034	if (my $map = $cf::MAP{$path}) {
		2035	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2036	}
		2037
		2038	$MAP_PREFETCH{$path} |= $load;
		2039
		2040	$MAP_PREFETCHER ||= cf::async {
		2041	while (%MAP_PREFETCH) {
		2042	while (my ($k, $v) = each %MAP_PREFETCH) {
		2043	if (my $map = find $k) {
		2044	$map->load if $v;
		2045	}
		2046
		2047	delete $MAP_PREFETCH{$k};
		2048	}
		2049	}
		2050	undef $MAP_PREFETCHER;
		2051	};
		2052	$MAP_PREFETCHER->prio (6);
		2053
		2054	()
1466	}	2055	}
1467		2056
1468	sub save {	2057	sub save {
1469	my ($self) = @_;	2058	my ($self) = @_;
1470		2059
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		2061
1473	$self->{last_save} = $cf::RUNTIME;	2062	$self->{last_save} = $cf::RUNTIME;
1474		2063
1475	return unless $self->dirty;	2064	return unless $self->dirty;
1476		2065
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2066	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2067	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2068
1480	$self->{load_path} = $save;	2069	$self->{load_path} = $save;
1481		2070
1482	return if $self->{deny_save};	2071	return if $self->{deny_save};
1483		2072
…		…
1486	cf::async {	2075	cf::async {
1487	$_->contr->save for $self->players;	2076	$_->contr->save for $self->players;
1488	};	2077	};
1489		2078
1490	if ($uniq) {	2079	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2080	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2081	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2082	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2083	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2084	}
1496	}	2085	}
1497		2086
1498	sub swap_out {	2087	sub swap_out {
1499	my ($self) = @_;	2088	my ($self) = @_;
1500		2089
1501	# save first because save cedes	2090	# save first because save cedes
1502	$self->save;	2091	$self->save;
1503		2092
1504	my $lock = cf::lock_acquire "map_data:" . $self->path;	2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
1505		2094
1506	return if $self->players;	2095	return if $self->players;
1507	return if $self->in_memory != cf::MAP_IN_MEMORY;	2096	return if $self->in_memory != cf::MAP_IN_MEMORY;
1508	return if $self->{deny_save};	2097	return if $self->{deny_save};
1509		2098
		2099	$self->in_memory (cf::MAP_SWAPPED);
		2100
		2101	$self->deactivate;
		2102	$_->clear_links_to ($self) for values %cf::MAP;
1510	$self->clear;	2103	$self->clear;
1511	$self->in_memory (cf::MAP_SWAPPED);
1512	}	2104	}
1513		2105
1514	sub reset_at {	2106	sub reset_at {
1515	my ($self) = @_;	2107	my ($self) = @_;
1516		2108
1517	# TODO: safety, remove and allow resettable per-player maps	2109	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2110	return 1e99 if $self->{deny_reset};
1520		2111
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2112	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2113	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2114
…		…
1528	my ($self) = @_;	2119	my ($self) = @_;
1529		2120
1530	$self->reset_at <= $cf::RUNTIME	2121	$self->reset_at <= $cf::RUNTIME
1531	}	2122	}
1532		2123
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2124	sub reset {
1555	my ($self) = @_;	2125	my ($self) = @_;
1556		2126
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2127	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2128
1559	return if $self->players;	2129	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2130
1562	warn "resetting map ", $self->path;#d#	2131	warn "resetting map ", $self->path;
		2132
		2133	$self->in_memory (cf::MAP_SWAPPED);
		2134
		2135	# need to save uniques path
		2136	unless ($self->{deny_save}) {
		2137	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2138
		2139	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2140	if $uniq;
		2141	}
1563		2142
1564	delete $cf::MAP{$self->path};	2143	delete $cf::MAP{$self->path};
1565		2144
		2145	$self->deactivate;
1566	$_->clear_links_to ($self) for values %cf::MAP;	2146	$_->clear_links_to ($self) for values %cf::MAP;
		2147	$self->clear;
1567		2148
1568	$self->unlink_save;	2149	$self->unlink_save;
1569	$self->destroy;	2150	$self->destroy;
1570	}	2151	}
1571		2152
1572	my $nuke_counter = "aaaa";	2153	my $nuke_counter = "aaaa";
1573		2154
1574	sub nuke {	2155	sub nuke {
1575	my ($self) = @_;	2156	my ($self) = @_;
1576		2157
		2158	{
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
		2161	delete $cf::MAP{$self->path};
		2162
		2163	$self->unlink_save;
		2164
		2165	bless $self, "cf::map";
		2166	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2167	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2168	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2169	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2170
		2171	$cf::MAP{$self->path} = $self;
		2172	}
		2173
1580	$self->reset; # polite request, might not happen	2174	$self->reset; # polite request, might not happen
1581	}	2175	}
1582		2176
1583	sub customise_for {	2177	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2178
1586	if ($map->per_player) {	2179	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2180	maps. May block.
		2181
		2182	=cut
		2183
		2184	sub tmp_maps() {
1588	}	2185	[
1589		2186	map {
1590	$map	2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $TMPDIR or [] }
		2192	]
1591	}	2193	}
1592		2194
1593	sub emergency_save {	2195	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2196
1596	warn "enter emergency perl save\n";	2197	Returns an arrayref with all map paths of currently instantiated and saved
		2198	random maps. May block.
1597		2199
1598	cf::sync_job {	2200	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2201
1603	warn "begin emergency map save\n";	2202	sub random_maps() {
1604	$_->save for values %cf::MAP;	2203	[
1605	warn "end emergency map save\n";	2204	map {
1606	};	2205	utf8::decode $_;
		2206	/\.map$/
		2207	? normalise "?random/$_"
		2208	: ()
		2209	} @{ aio_readdir $RANDOMDIR or [] }
		2210	]
		2211	}
1607		2212
1608	warn "leave emergency perl save\n";	2213	=item cf::map::unique_maps
		2214
		2215	Returns an arrayref of paths of all shared maps that have
		2216	instantiated unique items. May block.
		2217
		2218	=cut
		2219
		2220	sub unique_maps() {
		2221	[
		2222	map {
		2223	utf8::decode $_;
		2224	/\.map$/
		2225	? normalise $_
		2226	: ()
		2227	} @{ aio_readdir $UNIQUEDIR or [] }
		2228	]
1609	}	2229	}
1610		2230
1611	package cf;	2231	package cf;
1612		2232
1613	=back	2233	=back
1614		2234
		2235	=head3 cf::object
		2236
		2237	=cut
		2238
		2239	package cf::object;
		2240
		2241	=over 4
		2242
		2243	=item $ob->inv_recursive
		2244
		2245	Returns the inventory of the object _and_ their inventories, recursively.
		2246
		2247	=cut
		2248
		2249	sub inv_recursive_;
		2250	sub inv_recursive_ {
		2251	map { $_, inv_recursive_ $_->inv } @_
		2252	}
		2253
		2254	sub inv_recursive {
		2255	inv_recursive_ inv $_[0]
		2256	}
		2257
		2258	=item $ref = $ob->ref
		2259
		2260	creates and returns a persistent reference to an objetc that can be stored as a string.
		2261
		2262	=item $ob = cf::object::deref ($refstring)
		2263
		2264	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2265	even if the object actually exists. May block.
		2266
		2267	=cut
		2268
		2269	sub deref {
		2270	my ($ref) = @_;
		2271
		2272	# temporary compatibility#TODO#remove
		2273	$ref =~ s{^<}{player/<};
		2274
		2275	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2276	my ($uuid, $name) = ($1, $2);
		2277	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2278	or return;
		2279	$pl->ob->uuid eq $uuid
		2280	or return;
		2281
		2282	$pl->ob
		2283	} else {
		2284	warn "$ref: cannot resolve object reference\n";
		2285	undef
		2286	}
		2287	}
		2288
		2289	package cf;
		2290
		2291	=back
1615		2292
1616	=head3 cf::object::player	2293	=head3 cf::object::player
1617		2294
1618	=over 4	2295	=over 4
1619		2296
…		…
1633		2310
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2311	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2312
1636	if ($self->{record_replies}) {	2313	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2314	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2315
1638	} else {	2316	} else {
		2317	my $pl = $self->contr;
		2318
		2319	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2320	my $dialog = $pl->{npc_dialog};
		2321	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2322
		2323	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2324	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2325	$self->message ($msg, $flags);
		2326	}
1641	}	2327	}
		2328	}
		2329
		2330	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2331
		2332	=cut
		2333
		2334	sub cf::object::send_msg {
		2335	my $pl = shift->contr
		2336	or return;
		2337	$pl->send_msg (@_);
1642	}	2338	}
1643		2339
1644	=item $player_object->may ("access")	2340	=item $player_object->may ("access")
1645		2341
1646	Returns wether the given player is authorized to access resource "access"	2342	Returns wether the given player is authorized to access resource "access"
…		…
1659		2355
1660	=item $player_object->enter_link	2356	=item $player_object->enter_link
1661		2357
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2358	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2359
1664	The player should be reaosnably safe there for short amounts of time. You	2360	The player should be reasonably safe there for short amounts of time. You
1665	I<MUST> call C<leave_link> as soon as possible, though.	2361	I<MUST> call C<leave_link> as soon as possible, though.
1666		2362
		2363	Will never block.
		2364
1667	=item $player_object->leave_link ($map, $x, $y)	2365	=item $player_object->leave_link ($map, $x, $y)
1668		2366
1669	Moves the player out of the specila link map onto the given map. If the	2367	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2368	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2369	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2370	fails, to the emergency map position.
1673		2371
1674	Might block.	2372	Might block.
1675		2373
1676	=cut	2374	=cut
		2375
		2376	sub link_map {
		2377	unless ($LINK_MAP) {
		2378	$LINK_MAP = cf::map::find "{link}"
		2379	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2380	$LINK_MAP->load;
		2381	}
		2382
		2383	$LINK_MAP
		2384	}
1677		2385
1678	sub cf::object::player::enter_link {	2386	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2387	my ($self) = @_;
1680		2388
1681	$self->deactivate_recursive;	2389	$self->deactivate_recursive;
1682		2390
1683	return if $self->map == $LINK_MAP;	2391	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2392
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2393	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2394	if $self->map && $self->map->{path} ne "{link}";
1687		2395
1688	$self->enter_map ($LINK_MAP, 20, 20);	2396	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2397	}
1690		2398
1691	sub cf::object::player::leave_link {	2399	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2400	my ($self, $map, $x, $y) = @_;
		2401
		2402	return unless $self->contr->active;
1693		2403
1694	my $link_pos = delete $self->{_link_pos};	2404	my $link_pos = delete $self->{_link_pos};
1695		2405
1696	unless ($map) {	2406	unless ($map) {
1697	# restore original map position	2407	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2421	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2422	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2423	if $x <=0 && $y <= 0;
1714		2424
1715	$map->load;	2425	$map->load;
		2426	$map->load_neighbours;
1716		2427
1717	return unless $self->contr->active;	2428	return unless $self->contr->active;
1718	$self->activate_recursive;	2429	$self->activate_recursive;
		2430
		2431	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2432	$self->enter_map ($map, $x, $y);
1720	}	2433	}
1721		2434
1722	cf::player->attach (	2435	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2436
1726	# abort map switching before logout	2437	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2438	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2439	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2440	the new (success) or old (failed) map position. In either case, $done will
1730	};	2441	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2442
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)
1755
1756	=cut	2443	=cut
		2444
		2445	our $GOTOGEN;
1757		2446
1758	sub cf::object::player::goto {	2447	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2448	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2449
1761	$path = new cf::path $path;	2450	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2451	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2452
1764	$self->enter_link;	2453	$self->enter_link;
1765		2454
1766	(async {	2455	(async {
1767	my $map = cf::map::find $path->as_string;	2456	# *tag paths override both path and x|y
		2457	if ($path =~ /^\*(.*)$/) {
		2458	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2459	my $ob = $obs[rand @obs];
		2460
		2461	# see if we actually can go there
		2462	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2463	$ob = $obs[rand @obs];
		2464	} else {
		2465	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2466	}
		2467	# else put us there anyways for now #d#
		2468
		2469	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2470	} else {
		2471	($path, $x, $y) = (undef, undef, undef);
		2472	}
		2473	}
		2474
		2475	my $map = eval {
		2476	my $map = defined $path ? cf::map::find $path : undef;
		2477
		2478	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
1769		2480	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2481	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2482	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
1774		2484
		2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
		2491	}
		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1776	})->prio (1);	2499	})->prio (1);
1777	}	2500	}
1778		2501
1779	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1780		2503
…		…
1782		2505
1783	sub parse_random_map_params {	2506	sub parse_random_map_params {
1784	my ($spec) = @_;	2507	my ($spec) = @_;
1785		2508
1786	my $rmp = { # defaults	2509	my $rmp = { # defaults
1787	xsize => 10,	2510	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2511	ysize => (cf::rndm 15, 40),
		2512	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2513	#layout => string,
1789	};	2514	};
1790		2515
1791	for (split /\n/, $spec) {	2516	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2517	my ($k, $v) = split /\s+/, $_, 2;
1793		2518
…		…
1797	$rmp	2522	$rmp
1798	}	2523	}
1799		2524
1800	sub prepare_random_map {	2525	sub prepare_random_map {
1801	my ($exit) = @_;	2526	my ($exit) = @_;
		2527
		2528	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2529
1803	# all this does is basically replace the /! path by	2530	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2531	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2532	# that depends on the exit object
1806		2533
1807	my $rmp = parse_random_map_params $exit->msg;	2534	my $rmp = parse_random_map_params $exit->msg;
1808		2535
1809	if ($exit->map) {	2536	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2537	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2538	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2539	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2540	$rmp->{origin_y} = $exit->y;
1814	}	2541	}
1815		2542
1816	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1817		2544
1818	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
		2547	my $meta = "$RANDOMDIR/$md5.meta";
1820		2548
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
		2551	undef $fh;
		2552	aio_rename "$meta~", $meta;
1823		2553
1824	$exit->slaying ("?random/$md5");	2554	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2555	$exit->msg (undef);
1826	}	2556	}
1827	}	2557	}
…		…
1829	sub cf::object::player::enter_exit {	2559	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2560	my ($self, $exit) = @_;
1831		2561
1832	return unless $self->type == cf::PLAYER;	2562	return unless $self->type == cf::PLAYER;
1833		2563
		2564	if ($exit->slaying eq "/!") {
		2565	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2566	# the problem is that $exit might not survive long enough
		2567	# so it needs to be done right now, right here
		2568	cf::sync_job { prepare_random_map $exit };
		2569	}
		2570
		2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2572	my $hp = $exit->stats->hp;
		2573	my $sp = $exit->stats->sp;
		2574
1834	$self->enter_link;	2575	$self->enter_link;
		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
1835		2580
1836	(async {	2581	(async {
1837	$self->deactivate_recursive; # just to be sure	2582	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2583	unless (eval {
1839	prepare_random_map $exit	2584	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2585
1845	1;	2586	1;
1846	}) {	2587	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2588	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2589	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2590	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2591	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2592
1852	warn "ERROR in enter_exit: $@";	2593	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2594	$self->leave_link;
1854	}	2595	}
1855	})->prio (1);	2596	})->prio (1);
…		…
1868		2609
1869	sub cf::client::send_drawinfo {	2610	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2611	my ($self, $text, $flags) = @_;
1871		2612
1872	utf8::encode $text;	2613	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2615	}
1875		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
		2698	=item $client->ext_msg ($type, @msg)
		2699
		2700	Sends an ext event to the client.
		2701
		2702	=cut
		2703
		2704	sub cf::client::ext_msg($$@) {
		2705	my ($self, $type, @msg) = @_;
		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
		2710	push @msg, msgtype => "event_$type";
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
		2731	}
1876		2732
1877	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
1878		2734
1879	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2738
1883	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2740	become reliable at some point in the future.
1885		2741
1886	=cut	2742	=cut
1887		2743
1888	sub cf::client::query {	2744	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2753	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2755
1900	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
1902	}	2760	}
1903		2761
1904	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
1905	on_reply => sub {	2768	on_reply => sub {
1906	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
1907		2770
1908	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
1909	# get handled first	2772	# get handled first
1910	my $queue = delete $ns->{query_queue}	2773	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2774	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2775
1913	(shift @$queue)->[1]->($msg);	2776	(shift @$queue)->[1]->($msg);
		2777	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2778
1915	push @{ $ns->{query_queue} }, @$queue;	2779	push @{ $ns->{query_queue} }, @$queue;
1916		2780
1917	if (@{ $ns->{query_queue} } == @$queue) {	2781	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2782	if (@$queue) {
…		…
1920	} else {	2784	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2786	}
1923	}	2787	}
1924	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
1925	);	2815	);
1926		2816
1927	=item $client->async (\&cb)	2817	=item $client->async (\&cb)
1928		2818
1929	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
…		…
1970	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
1971	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
1972		2862
1973	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
1974		2864
1975	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
1976		2870
1977	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
1978		2872
1979	=pod	2873	=pod
1980		2874
1981	The following fucntions and emthods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
1982		2876
1983	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
1984	cf::object::player player	2881	cf::object::player
1985	cf::player peaceful	2882	player
1986	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
1987		2889
1988	=cut	2890	=cut
1989		2891
1990	for (	2892	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
1992	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
1995	) {	2899	) {
1996	no strict 'refs';	2900	no strict 'refs';
…		…
2067	=back	2971	=back
2068		2972
2069	=cut	2973	=cut
2070		2974
2071	#############################################################################	2975	#############################################################################
		2976	# the server's init and main functions
2072		2977
2073	=head2 EXTENSION DATABASE SUPPORT	2978	sub load_facedata($) {
		2979	my ($path) = @_;
2074		2980
2075	Crossfire maintains a very simple database for extension use. It can	2981	# HACK to clear player env face cache, we need some signal framework
2076	currently store anything that can be serialised using Storable, which	2982	# for this (global event?)
2077	excludes objects.	2983	%ext::player_env::MUSIC_FACE_CACHE = ();
2078		2984
2079	The parameter C<$family> should best start with the name of the extension	2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2080	using it, it should be unique.
2081		2986
2082	=over 4	2987	warn "loading facedata from $path\n";
2083		2988
2084	=item $hashref = cf::db_get $family	2989	my $facedata;
		2990	0 < aio_load $path, $facedata
		2991	or die "$path: $!";
2085		2992
2086	Return a hashref for use by the extension C<$family>, which can be	2993	$facedata = Coro::Storable::thaw $facedata;
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089		2994
2090	=item $value = cf::db_get $family => $key	2995	$facedata->{version} == 2
		2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
2091		2997
2092	Returns a single value from the database	2998	# patch in the exptable
2093		2999	$facedata->{resource}{"res/exp_table"} = {
2094	=item cf::db_put $family => $hashref	3000	type => FT_RSRC,
2095		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}
2122
2123	my $pid;
2124
2125	sub db_save() {
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});	3002	};
		3003	cf::cede_to_tick;
2145		3004
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}	3005	{
		3006	my $faces = $facedata->{faceinfo};
2150		3007
2151	sub db_get($;$) {	3008	while (my ($face, $info) = each %$faces) {
2152	@_ >= 2	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2153	? $DB->{$_[0]}{$_[1]}	3010	cf::face::set_visibility $idx, $info->{visibility};
2154	: ($DB->{$_[0]} ||= { })	3011	cf::face::set_magicmap $idx, $info->{magicmap};
2155	}	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2156		3014
2157	sub db_put($$;$) {	3015	cf::cede_to_tick;
2158	if (@_ >= 3) {
2159	$DB->{$_[0]}{$_[1]} = $_[2];
2160	} else {
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165
2166	cf::global->attach (
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	3016	}
2171	);
2172	}
2173		3017
2174	#############################################################################	3018	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	3019	next unless $info->{smooth};
		3020	my $idx = cf::face::find $face
		3021	or next;
		3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
		3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3025	} else {
		3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3027	}
2176		3028
2177	sub cfg_load {	3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
		3093	1
		3094	}
		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
		3138	sub reload_resources {
		3139	warn "reloading resource files...\n";
		3140
		3141	reload_regions;
		3142	reload_facedata;
		3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
		3148	}
		3149
		3150	sub init {
		3151	reload_resources;
		3152	}
		3153
		3154	sub reload_config {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	3156	or return;
2180		3157
2181	local $/;	3158	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
2183		3160
…		…
2197		3174
2198	sub main {	3175	sub main {
2199	# we must not ever block the main coroutine	3176	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3177	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3178	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3179	(async {
2202	async { Event::one_event };	3180	Event::one_event;
		3181	})->prio (Coro::PRIO_MAX);
2203	};	3182	};
2204		3183
2205	cfg_load;	3184	reload_config;
2206	db_load;	3185	db_init;
2207	load_extensions;	3186	load_extensions;
		3187
		3188	$TICK_WATCHER->start;
2208	Event::loop;	3189	Event::loop;
2209	}	3190	}
2210		3191
2211	#############################################################################	3192	#############################################################################
2212	# initialisation	3193	# initialisation and cleanup
2213		3194
		3195	# install some emergency cleanup handlers
		3196	BEGIN {
		3197	for my $signal (qw(INT HUP TERM)) {
		3198	Event->signal (
		3199	reentrant => 0,
		3200	data => WF_AUTOCANCEL,
		3201	signal => $signal,
		3202	prio => 0,
		3203	cb => sub {
		3204	cf::cleanup "SIG$signal";
		3205	},
		3206	);
		3207	}
		3208	}
		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
		3248	sub emergency_save() {
		3249	my $freeze_guard = cf::freeze_mainloop;
		3250
		3251	warn "enter emergency perl save\n";
		3252
		3253	cf::sync_job {
		3254	# use a peculiar iteration method to avoid tripping on perl
		3255	# refcount bugs in for. also avoids problems with players
		3256	# and maps saved/destroyed asynchronously.
		3257	warn "begin emergency player save\n";
		3258	for my $login (keys %cf::PLAYER) {
		3259	my $pl = $cf::PLAYER{$login} or next;
		3260	$pl->valid or next;
		3261	$pl->save;
		3262	}
		3263	warn "end emergency player save\n";
		3264
		3265	warn "begin emergency map save\n";
		3266	for my $path (keys %cf::MAP) {
		3267	my $map = $cf::MAP{$path} or next;
		3268	$map->valid or next;
		3269	$map->save;
		3270	}
		3271	warn "end emergency map save\n";
		3272
		3273	warn "begin emergency database checkpoint\n";
		3274	BDB::db_env_txn_checkpoint $DB_ENV;
		3275	warn "end emergency database checkpoint\n";
		3276	};
		3277
		3278	warn "leave emergency perl save\n";
		3279	}
		3280
		3281	sub post_cleanup {
		3282	my ($make_core) = @_;
		3283
		3284	warn Carp::longmess "post_cleanup backtrace"
		3285	if $make_core;
		3286	}
		3287
2214	sub reload() {	3288	sub do_reload_perl() {
2215	# can/must only be called in main	3289	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3291	warn "can only reload from main coroutine";
2218	return;	3292	return;
2219	}	3293	}
2220		3294
2221	warn "reloading...";	3295	warn "reloading...";
2222		3296
2223	my $guard = freeze_mainloop;	3297	warn "entering sync_job";
		3298
		3299	cf::sync_job {
		3300	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3301	cf::emergency_save;
		3302	cf::write_runtime; # external watchdog should not bark
2225		3303
2226	eval {	3304	warn "syncing database to disk";
		3305	BDB::db_env_txn_checkpoint $DB_ENV;
		3306
2227	# if anything goes wrong in here, we should simply crash as we already saved	3307	# if anything goes wrong in here, we should simply crash as we already saved
2228		3308
2229	# cancel all watchers	3309	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	3310	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3311	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	3312	}
2233		3313
		3314	warn "flushing outstanding aio requests";
		3315	for (;;) {
		3316	BDB::flush;
		3317	IO::AIO::flush;
		3318	Coro::cede;
		3319	last unless IO::AIO::nreqs || BDB::nreqs;
		3320	warn "iterate...";
		3321	}
		3322
		3323	++$RELOAD;
		3324
2234	# cancel all extension coros	3325	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3326	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3327	%EXT_CORO = ();
2237		3328
2238	# unload all extensions	3329	warn "removing commands";
2239	for (@exts) {	3330	%COMMAND = ();
		3331
		3332	warn "removing ext/exti commands";
		3333	%EXTCMD = ();
		3334	%EXTICMD = ();
		3335
		3336	warn "unloading/nuking all extensions";
		3337	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3338	warn "... unloading $pkg";
2241	unload_extension $_;	3339
		3340	if (my $cb = $pkg->can ("unload")) {
		3341	eval {
		3342	$cb->($pkg);
		3343	1
		3344	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3345	}
2243		3346
		3347	warn "... nuking $pkg";
		3348	Symbol::delete_package $pkg;
		3349	}
		3350
2244	# unload all modules loaded from $LIBDIR	3351	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3352	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3353	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3354
2248	warn "removing <$k>";	3355	warn "... unloading $k";
2249	delete $INC{$k};	3356	delete $INC{$k};
2250		3357
2251	$k =~ s/\.pm$//;	3358	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3359	$k =~ s/\//::/g;
2253		3360
…		…
2256	}	3363	}
2257		3364
2258	Symbol::delete_package $k;	3365	Symbol::delete_package $k;
2259	}	3366	}
2260		3367
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3368	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3371
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3372	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2274		3375
2275	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3377	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2278		3379
2279	# reload cf.pm	3380	warn "unload completed, starting to reload now";
		3381
2280	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2281	require cf;	3383	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3385
2284	# load config and database again	3386	warn "loading config and database again";
2285	cf::cfg_load;	3387	cf::reload_config;
2286	cf::db_load;
2287		3388
2288	# load extensions
2289	warn "load extensions";	3389	warn "loading extensions";
2290	cf::load_extensions;	3390	cf::load_extensions;
2291		3391
2292	# reattach attachments to objects	3392	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3393	_global_reattach; # objects, sockets
2294	_global_reattach;	3394	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3395	reattach $_ for values %MAP;
2296	};	3396	warn "reattaching attachments to players";
		3397	reattach $_ for values %PLAYER;
2297		3398
2298	if ($@) {	3399	warn "leaving sync_job";
		3400
		3401	1
		3402	} or do {
2299	warn $@;	3403	warn $@;
2300	warn "error while reloading, exiting.";	3404	warn "error while reloading, exiting.";
2301	exit 1;	3405	exit 1;
2302	}	3406	};
2303		3407
2304	warn "reloaded successfully";	3408	warn "reloaded";
2305	};	3409	};
2306		3410
2307	#############################################################################	3411	our $RELOAD_WATCHER; # used only during reload
2308		3412
2309	unless ($LINK_MAP) {	3413	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
2311		3416
2312	$LINK_MAP->width (41);	3417	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	3418	reentrant => 0,
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,	3419	after => 0,
		3420	data => WF_AUTOCANCEL,
2322	cb => sub {	3421	cb => sub {
2323	$_[0]->w->cancel;	3422	do_reload_perl;
2324		3423	undef $RELOAD_WATCHER;
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});	3424	},
2343		3425	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3426	}
2349
2350	register "<global>", __PACKAGE__;
2351		3427
2352	register_command "reload" => sub {	3428	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2354		3430
2355	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3432	$who->message ("reloading server.");
		3433	async { reload_perl };
2359	}	3434	}
2360	};	3435	};
2361		3436
2362	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
		3438
		3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
2363		3461
2364	$TICK_WATCHER = Event->timer (	3462	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	3463	reentrant => 0,
		3464	parked => 1,
2366	prio => 0,	3465	prio => 0,
2367	at => $NEXT_TICK || $TICK,	3466	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	3467	data => WF_AUTOCANCEL,
2369	cb => sub {	3468	cb => sub {
		3469	if ($Coro::current != $Coro::main) {
		3470	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3471	unless ++$bug_warning > 10;
		3472	return;
		3473	}
		3474
		3475	$NOW = $tick_start = Event::time;
		3476
2370	cf::server_tick; # one server iteration	3477	cf::server_tick; # one server iteration
		3478
2371	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2373		3481
		3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3484	Coro::async_pool {
		3485	write_runtime
		3486	or warn "ERROR: unable to write runtime file: $!";
		3487	};
		3488	}
		3489
		3490	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3491	$sig->send;
		3492	}
		3493	while (my $sig = shift @WAIT_FOR_TICK) {
		3494	$sig->send;
		3495	}
		3496
		3497	$NOW = Event::time;
		3498
2374	# if we are delayed by four ticks or more, skip them all	3499	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3500	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		3501
2377	$TICK_WATCHER->at ($NEXT_TICK);	3502	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	3503	$TICK_WATCHER->start;
		3504
		3505	$LOAD = ($NOW - $tick_start) / $TICK;
		3506	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3507
		3508	_post_tick;
2379	},	3509	},
2380	);	3510	);
2381		3511
		3512	{
		3513	BDB::min_parallel 8;
2382	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2383		3515	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	3516	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2386	poll => 'r',	3518	poll => 'r',
2387	prio => 5,	3519	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
		3521	cb => \&BDB::poll_cb,
		3522	);
		3523
		3524	BDB::set_sync_prepare {
		3525	my $status;
		3526	my $current = $Coro::current;
		3527	(
		3528	sub {
		3529	$status = $!;
		3530	$current->ready; undef $current;
		3531	},
		3532	sub {
		3533	Coro::schedule while defined $current;
		3534	$! = $status;
		3535	},
		3536	)
		3537	};
		3538
		3539	unless ($DB_ENV) {
		3540	$DB_ENV = BDB::db_env_create;
		3541	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3542	| BDB::LOG_AUTOREMOVE, 1);
		3543	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3544	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3545
		3546	cf::sync_job {
		3547	eval {
		3548	BDB::db_env_open
		3549	$DB_ENV,
		3550	$BDBDIR,
		3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3553	0666;
		3554
		3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_DEADLOCK_WATCHER = Event->timer (
2394	after => 0,	3563	after => 3,
2395	interval => 10,	3564	interval => 1,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2396	cb => sub {	3568	cb => sub {
2397	(Coro::unblock_sub {	3569	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2398	write_runtime	3570	},
2399	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3573	after => 11,
		3574	interval => 60,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3580	},
		3581	);
		3582	$BDB_TRICKLE_WATCHER = Event->timer (
		3583	after => 5,
		3584	interval => 10,
		3585	hard => 1,
		3586	prio => 0,
		3587	data => WF_AUTOCANCEL,
		3588	cb => sub {
		3589	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3590	},
		3591	);
		3592	}
		3593
		3594	{
		3595	IO::AIO::min_parallel 8;
		3596
		3597	undef $Coro::AIO::WATCHER;
		3598	IO::AIO::max_poll_time $TICK * 0.1;
		3599	$AIO_POLL_WATCHER = Event->io (
		3600	reentrant => 0,
		3601	data => WF_AUTOCANCEL,
		3602	fd => IO::AIO::poll_fileno,
		3603	poll => 'r',
		3604	prio => 6,
		3605	cb => \&IO::AIO::poll_cb,
		3606	);
		3607	}
		3608
		3609	my $_log_backtrace;
		3610
		3611	sub _log_backtrace {
		3612	my ($msg, @addr) = @_;
		3613
		3614	$msg =~ s/\n//;
		3615
		3616	# limit the # of concurrent backtraces
		3617	if ($_log_backtrace < 2) {
		3618	++$_log_backtrace;
		3619	async {
		3620	my @bt = fork_call {
		3621	@addr = map { sprintf "%x", $_ } @addr;
		3622	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3623	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3624	or die "addr2line: $!";
		3625
		3626	my @funcs;
		3627	my @res = <$fh>;
		3628	chomp for @res;
		3629	while (@res) {
		3630	my ($func, $line) = splice @res, 0, 2, ();
		3631	push @funcs, "[$func] $line";
		3632	}
		3633
		3634	@funcs
		3635	};
		3636
		3637	LOG llevInfo, "[ABT] $msg\n";
		3638	LOG llevInfo, "[ABT] $_\n" for @bt;
		3639	--$_log_backtrace;
2400	})->();	3640	};
		3641	} else {
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] [suppressed]\n";
2401	},	3644	}
2402	);	3645	}
		3646
		3647	# load additional modules
		3648	use cf::pod;
2403		3649
2404	END { cf::emergency_save }	3650	END { cf::emergency_save }
2405		3651
2406	1	3652	1
2407		3653

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