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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.148 by root, Mon Jan 8 12:39:16 2007 UTC vs.
Revision 1.364 by root, Tue Sep 11 08:41:11 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
22	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO; # coroutines bound to extensions	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
77		121
78	#############################################################################	122	#############################################################################
79		123
80	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
81		125
…		…
88	=item $cf::RUNTIME	132	=item $cf::RUNTIME
89		133
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	135	every server tick.
92		136
93	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		140
95	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
97		145
98	=item $cf::NOW	146	=item $cf::NOW
99		147
100	The time of the last (current) server tick.	148	The time of the last (current) server tick.
101		149
102	=item $cf::TICK	150	=item $cf::TICK
103		151
104	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
105		163
106	=item %cf::CFG	164	=item %cf::CFG
107		165
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
110		180
111	=back	181	=back
112		182
113	=cut	183	=cut
114		184
115	BEGIN {	185	BEGIN {
116	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	187	my $msg = join "", @_;
118	utf8::encode $msg;
119		188
120	$msg .= "\n"	189	$msg .= "\n"
121	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
122		193
123	LOG llevError, $msg;	194	LOG llevError, $msg;
124	};	195	};
125	}	196	}
126		197
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		205
134	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	207	# within the Safe compartment.
136	for my $pkg (qw(	208	for my $pkg (qw(
137	cf::global cf::attachable	209	cf::global cf::attachable
…		…
146		218
147	$Event::DIED = sub {	219	$Event::DIED = sub {
148	warn "error in event callback: @_";	220	warn "error in event callback: @_";
149	};	221	};
150		222
151	my %ext_pkg;	223	#############################################################################
152	my @exts;
153	my @hook;
154		224
155	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
156		226
157	=over 4	227	=over 4
158		228
159	=cut	229	=item dumpval $ref
160		230
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
162		251
163	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
164		253
165	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
166		255
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
175		257
176	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
177		259
178	=cut	260	=cut
179		261
180	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
182	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
184		266
185	=item cf::lock_wait $string	267	=item cf::lock_wait $string
186		268
187	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
188		270
…		…
191	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
194	returned.	276	returned.
195		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
196	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
198		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
199	=cut	288	=cut
200		289
201	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
202		292
203	sub lock_wait($) {	293	sub lock_wait($) {
204	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
205		300
206	# wait for lock, if any	301	# wait for lock, if any
207	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	304	Coro::schedule;
…		…
215		310
216	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
217	lock_wait $key;	312	lock_wait $key;
218		313
219	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
220		316
221	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
224	}	321	}
225	}	322	}
226		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
227	sub freeze_mainloop {	330	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
229		332
230	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
231	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
232	$guard	337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
233	}	394	}
234		395
235	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
236		397
237	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		403
243	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
244		405
245	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
246		407
247	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
250		412
251	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
254	fast or be very important.	416	fast or be very important.
…		…
257		419
258	sub sync_job(&) {	420	sub sync_job(&) {
259	my ($job) = @_;	421	my ($job) = @_;
260		422
261	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
262	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
264		428
265	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
277		441
278	while ($busy) {	442	while ($busy) {
279	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
280	}	444	}
281		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
282	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
283	} else {	454	} else {
284	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
285		456
286	$job->()	457	$job->()
287	}	458	}
288	}	459	}
289		460
290	=item $coro = cf::async_ext { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
291		462
292	Like async, but this coro is automcatially being canceled when the	463	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	464	extension calling this is being unloaded.
294		465
295	=cut	466	=cut
296		467
297	sub async_ext(&) {	468	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
306		477
307	$coro	478	$coro
308	}	479	}
309		480
310	sub write_runtime {	481	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		482
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
314	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
315		487
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		489
320	aio_fsync $fh	490	sub fork_call(&@) {
321	and return;	491	my ($cb, @args) = @_;
322		492
323	close $fh	493	# we seemingly have to make a local copy of the whole thing,
324	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
325		496
326	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
327	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
328		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
329	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	641	}
331		642
332	=back	643	=back
333		644
334	=cut	645	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		646
456	#############################################################################	647	#############################################################################
457		648
458	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
459		650
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
463		654
464	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	657	Crossfire TRT).
467		658
468	=over 4	659	=over 4
469		660
470	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
471		662
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	777	our @CB_MAP = ();
587		778
588	my %attachment;	779	my %attachment;
589		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
590	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
592		789
593	use sort 'stable';	790	use sort 'stable';
594		791
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
629		826
630	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		831
635	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	833	my $pkg = shift @arg;
637		834
638	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
668	}	865	}
669		866
670	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
671	} else {	868	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	870	}
674		871
675	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
676	}	873	}
677		874
…		…
679	if (ref $_[0]) {	876	if (ref $_[0]) {
680	_object_attach @_;	877	_object_attach @_;
681	} else {	878	} else {
682	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
683	}	880	}
		881	_recalc_want;
684	};	882	};
685		883
686	# all those should be optimised	884	# all those should be optimised
687	sub cf::attachable::detach {	885	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
692	reattach ($obj);	890	reattach ($obj);
693	} else {	891	} else {
694	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
695	}	893	}
		894	_recalc_want;
696	};	895	};
697		896
698	sub cf::attachable::attached {	897	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
700		899
…		…
715	";	914	";
716	die if $@;	915	die if $@;
717	}	916	}
718		917
719	our $override;	918	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		920
722	sub override {	921	sub override {
723	$override = 1;	922	$override = 1;
724	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
725	}	924	}
726		925
727	sub do_invoke {	926	sub do_invoke {
728	my $event = shift;	927	my $event = shift;
729	my $callbacks = shift;	928	my $callbacks = shift;
730		929
731	@invoke_results = ();	930	@INVOKE_RESULTS = ();
732		931
733	local $override;	932	local $override;
734		933
735	for (@$callbacks) {	934	for (@$callbacks) {
736	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
753		952
754	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
755		954
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		958
760	=back	959	=back
761		960
762	=cut	961	=cut
763		962
764	#############################################################################	963	#############################################################################
765	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
766		976
767	sub reattach {	977	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		982
771	my $registry = $obj->registry;	983	my $registry = $obj->registry;
772		984
773	@$registry = ();	985	@$registry = ();
774		986
…		…
813	);	1025	);
814		1026
815	sub object_freezer_save {	1027	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
817		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
818	sync_job {	1032	sync_job {
819	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
822		1037
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1042	close $fh;
828		1043
829	if (@$objs) {	1044	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1050	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
837	}	1052	}
838	} else {	1053	} else {
839	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
845	}	1060	}
846	} else {	1061	} else {
847	aio_unlink $filename;	1062	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
849	}	1064	}
850	}	1065	};
		1066
		1067	undef $guard;
851	}	1068	}
852		1069
853	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
855		1072
…		…
860		1077
861	sub object_thawer_load {	1078	sub object_thawer_load {
862	my ($filename) = @_;	1079	my ($filename) = @_;
863		1080
864	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
865		1084
866	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
867	or return;	1086	or return;
868		1087
869	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
871	or return;	1090	or return;
		1091
		1092	undef $guard;
872	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
873	}	1094	}
874		1095
		1096	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
877	return ($data, $av);	1100	($data, $av)
878	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
879		1108
880	#############################################################################	1109	#############################################################################
881	# command handling &c	1110	# command handling &c
882		1111
883	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1126	}
898		1127
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1129
901	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
902		1135
903	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
904	called.	1137	called.
905		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
906	=cut	1150	=cut
907		1151
908	sub register_extcmd {	1152	sub register_extcmd {
909	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
910		1154
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
915	}	1162	}
916		1163
917	cf::player->attach (	1164	cf::player->attach (
918	on_command => sub {	1165	on_command => sub {
919	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1175	cf::override;
929	},	1176	},
930	on_extcmd => sub {	1177	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
932		1179
933	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1181
935	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
941	} else {	1197	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1199	}
944		1200
945	cf::override;	1201	cf::override;
946	},	1202	},
947	);	1203	);
948		1204
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1026	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1210	next unless -r $path;
1028	eval {	1211
1029	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
1030	1	1269	}
1031	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1032	}	1275	};
1033	}	1276	}
1034		1277
1035	#############################################################################	1278	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1279
1038	*cf::mapsupport::on_clean = sub {	1280	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1281
1073	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1074		1283
1075	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1076		1285
1077	=cut	1286	=cut
1078		1287
1079	package cf::player;	1288	package cf::player;
1080		1289
		1290	use Coro::AIO;
		1291
1081	=head3 cf::player	1292	=head3 cf::player
1082		1293
1083	=over 4	1294	=over 4
1084		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
1085	=item cf::player::find $login	1310	=item cf::player::find $login
1086		1311
1087	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
1088		1313
1089	=cut	1314	=cut
1090		1315
1091	sub playerdir($) {	1316	sub playerdir($) {
1092	cf::localdir	1317	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1319	}
1098		1320
1099	sub path($) {	1321	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1323
1102	(playerdir $login) . "/$login.pl"	1324	(playerdir $login) . "/playerdata"
1103	}	1325	}
1104		1326
1105	sub find_active($) {	1327	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1328	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1329	and $cf::PLAYER{$_[0]}->active
…		…
1110		1332
1111	sub exists($) {	1333	sub exists($) {
1112	my ($login) = @_;	1334	my ($login) = @_;
1113		1335
1114	$cf::PLAYER{$login}	1336	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1337	or cf::sync_job { !aio_stat path $login }
1116	}	1338	}
1117		1339
1118	sub find($) {	1340	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1341	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1342	my $login = $_[0];
1121		1343
1122	my $guard = cf::lock_acquire "user_find:$login";	1344	my $guard = cf::lock_acquire "user_find:$login";
1123		1345
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
1125	};	1364	}
1126	}	1365	}
1127		1366
1128	sub save($) {	1367	sub save($) {
1129	my ($pl) = @_;	1368	my ($pl) = @_;
1130		1369
…		…
1133	my $path = path $pl;	1372	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1373	my $guard = cf::lock_acquire "user_save:$path";
1135		1374
1136	return if $pl->{deny_save};	1375	return if $pl->{deny_save};
1137		1376
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1140		1379
1141	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1142	Coro::cede;	1381	cf::cede_to_tick;
1143	}	1382	}
1144		1383
1145	sub new($) {	1384	sub new($) {
1146	my ($login) = @_;	1385	my ($login) = @_;
1147		1386
…		…
1153	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1154		1393
1155	$self	1394	$self
1156	}	1395	}
1157		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
1158	sub quit_character {	1414	sub quit_character {
1159	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1160		1418
1161	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
1163		1421
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1425	$pl->ns->destroy if $pl->ns;
1168		1426
1169	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	IO::AIO::aio_rename $path, $temp, sub {	1429	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1431	$pl->destroy;
1174		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1175	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
1176	};	1480	}
1177	}
1178		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1179	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1180		1565
1181	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1182		1567
1183	=cut	1568	=cut
1184		1569
1185	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1186	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1187		1572
1188	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1189
1190	$self->send ("ext " . cf::to_json \%msg);
1191	}	1574	}
1192		1575
1193	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1194		1616
1195	=back	1617	=back
1196
1197		1618
1198	=head3 cf::map	1619	=head3 cf::map
1199		1620
1200	=over 4	1621	=over 4
1201		1622
…		…
1204	package cf::map;	1625	package cf::map;
1205		1626
1206	use Fcntl;	1627	use Fcntl;
1207	use Coro::AIO;	1628	use Coro::AIO;
1208		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1209	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1210	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1211		1636
1212	sub generate_random_map {	1637	sub generate_random_map {
1213	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1214
1215	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1216	cf::map::_create_random_map	1640	$self->_create_random_map (
1217	$path,
1218	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1219	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1220	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1221	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1222	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1223	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1224	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1225	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1226	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1227	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1228	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1229	}	1780	}
1230		1781
1231	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1232	# all maps in C++...	1783	# all maps in C++...
1233	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1235		1786
1236	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1237	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1238	}	1789	}
1239		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1240	sub try_load_header($) {	1807	sub load_header_from($) {
1241	my ($path) = @_;	1808	my ($self, $path) = @_;
1242		1809
1243	utf8::encode $path;	1810	utf8::encode $path;
1244	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1245	or return;	1812	or return;
1246		1813
1247	my $map = cf::map::new	1814	$self->_load_header ($f)
1248	or return;	1815	or return;
1249		1816
1250	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1251	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1252		1819
1253	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1254	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1255		1866
1256	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1257		1869
1258	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1259	}	1874	}
1260		1875
1261	sub find;	1876	sub find;
1262	sub find {	1877	sub find {
1263	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1264		1879
1265	#warn "find<$path,$origin>\n";#d#
1266
1267	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1268	my $key = $path->as_string;
1269		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1270	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1271		1884
1272	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1273	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1274		1888
1275	# do it the slow way	1889	my $map = new_from_path cf::map $path
1276	my $map = try_load_header $path->save_path;
1277
1278	Coro::cede;
1279
1280	if ($map) {
1281	$map->last_access ((delete $map->{last_access})
1282	|| $cf::RUNTIME); #d#
1283	# safety
1284	$map->{instantiate_time} = $cf::RUNTIME
1285	if $map->{instantiate_time} > $cf::RUNTIME;
1286	} else {
1287	if (my $rmp = $path->random_map_params) {
1288	$map = generate_random_map $key, $rmp;
1289	} else {
1290	$map = try_load_header $path->load_path;
1291	}
1292
1293	$map or return;	1890	or return;
1294		1891
1295	$map->{load_original} = 1;
1296	$map->{instantiate_time} = $cf::RUNTIME;
1297	$map->last_access ($cf::RUNTIME);
1298	$map->instantiate;
1299
1300	# per-player maps become, after loading, normal maps
1301	$map->per_player (0) if $path->{user_rel};
1302	}
1303
1304	$map->path ($key);
1305	$map->{path} = $path;
1306	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1307		1893
1308	Coro::cede;	1894	$map->load_header
		1895	or return;
1309		1896
1310	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1311	$map->reset;	1902	$map->reset;
1312	undef $guard;
1313	$map = find $path	1903	return find $path;
1314	or return;
1315	}	1904	}
1316		1905
1317	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1318	}	1907	}
1319	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1320		1912
1321	sub load {	1913	sub load {
1322	my ($self) = @_;	1914	my ($self) = @_;
1323		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1324	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1325	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1326		1922
		1923	return unless $self->valid;
1327	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1328		1925
1329	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1330		1927
1331	$self->alloc;	1928	$self->alloc;
1332	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1333	or return;	1936	or return;
1334		1937
1335	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1336	if delete $self->{load_original};	1939	if delete $self->{load_original};
1337		1940
1338	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1339	utf8::encode $uniq;	1942	utf8::encode $uniq;
1340	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1341	$self->clear_unique_items;	1945	$self->clear_unique_items;
1342	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1343	}	1949	}
1344	}	1950	}
1345		1951
1346	Coro::cede;	1952	$f->resolve_delayed_derefs;
1347		1953
		1954	cf::cede_to_tick;
1348	# now do the right thing for maps	1955	# now do the right thing for maps
1349	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1350
1351	if ($self->{path}->is_style_map) {
1352	$self->{deny_save} = 1;
1353	$self->{deny_reset} = 1;
1354	} else {
1355	$self->fix_auto_apply;
1356	$self->decay_objects;
1357	$self->update_buttons;
1358	$self->set_darkness_map;
1359	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1360	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1361	$self->activate;	1968	$self->activate;
1362	}	1969	}
1363		1970
1364	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1365		1973
1366	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
1367	}	2016	}
1368		2017
1369	sub find_sync {	2018	sub find_sync {
1370	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1371		2020
1372	cf::sync_job { cf::map::find $path, $origin }	2021	cf::sync_job { find $path, $origin }
1373	}	2022	}
1374		2023
1375	sub do_load_sync {	2024	sub do_load_sync {
1376	my ($map) = @_;	2025	my ($map) = @_;
1377		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1378	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
		2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1379	}	2062	}
1380		2063
1381	sub save {	2064	sub save {
1382	my ($self) = @_;	2065	my ($self) = @_;
1383		2066
1384	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1385		2068
1386	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1387		2070
1388	return unless $self->dirty;	2071	return unless $self->dirty;
1389		2072
1390	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1391	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1392		2075
1393	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1394		2077
1395	return if $self->{deny_save};	2078	return if $self->{deny_save};
1396		2079
…		…
1399	cf::async {	2082	cf::async {
1400	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1401	};	2084	};
1402		2085
1403	if ($uniq) {	2086	if ($uniq) {
1404	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1405	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1406	} else {	2089	} else {
1407	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1408	}	2091	}
1409	}	2092	}
1410		2093
1411	sub swap_out {	2094	sub swap_out {
1412	my ($self) = @_;	2095	my ($self) = @_;
1413		2096
1414	# save first because save cedes	2097	# save first because save cedes
1415	$self->save;	2098	$self->save;
1416		2099
1417	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1418		2101
1419	return if $self->players;	2102	return if $self->players;
1420	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1421	return if $self->{deny_save};	2104	return if $self->{deny_save};
1422		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1423	$self->clear;	2110	$self->clear;
1424	$self->in_memory (cf::MAP_SWAPPED);
1425	}	2111	}
1426		2112
1427	sub reset_at {	2113	sub reset_at {
1428	my ($self) = @_;	2114	my ($self) = @_;
1429		2115
1430	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1431	return 1e99 if $self->{path}{user_rel};
1432	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1433		2118
1434	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1435	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1436		2121
…		…
1441	my ($self) = @_;	2126	my ($self) = @_;
1442		2127
1443	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1444	}	2129	}
1445		2130
1446	sub unlink_save {
1447	my ($self) = @_;
1448
1449	utf8::encode (my $save = $self->{path}->save_path);
1450	aioreq_pri 3; IO::AIO::aio_unlink $save;
1451	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1452	}
1453
1454	sub rename {
1455	my ($self, $new_path) = @_;
1456
1457	$self->unlink_save;
1458
1459	delete $cf::MAP{$self->path};
1460	$self->{path} = new cf::path $new_path;
1461	$self->path ($self->{path}->as_string);
1462	$cf::MAP{$self->path} = $self;
1463
1464	$self->save;
1465	}
1466
1467	sub reset {	2131	sub reset {
1468	my ($self) = @_;	2132	my ($self) = @_;
1469		2133
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1471		2135
1472	return if $self->players;	2136	return if $self->players;
1473	return if $self->{path}{user_rel};#d#
1474		2137
1475	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1476		2149
1477	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1478		2151
		2152	$self->deactivate;
1479	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1480		2155
1481	$self->unlink_save;	2156	$self->unlink_save;
1482	$self->destroy;	2157	$self->destroy;
1483	}	2158	}
1484		2159
1485	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1486		2161
1487	sub nuke {	2162	sub nuke {
1488	my ($self) = @_;	2163	my ($self) = @_;
1489		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1490	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1491	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1492	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1493	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1494	}	2182	}
1495		2183
1496	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1497	my ($map, $ob) = @_;
1498		2185
1499	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1500	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1501	}	2192	[
1502		2193	map {
1503	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1504	}	2200	}
1505		2201
1506	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1507	my $freeze_guard = cf::freeze_mainloop;
1508		2203
1509	warn "enter emergency perl save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1510		2206
1511	cf::sync_job {	2207	=cut
1512	warn "begin emergency player save\n";
1513	$_->save for values %cf::PLAYER;
1514	warn "end emergency player save\n";
1515		2208
1516	warn "begin emergency map save\n";	2209	sub random_maps() {
1517	$_->save for values %cf::MAP;	2210	[
1518	warn "end emergency map save\n";	2211	map {
1519	};	2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
1520		2219
1521	warn "leave emergency perl save\n";	2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1522	}	2236	}
1523		2237
1524	package cf;	2238	package cf;
1525		2239
1526	=back	2240	=back
1527		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1528		2299
1529	=head3 cf::object::player	2300	=head3 cf::object::player
1530		2301
1531	=over 4	2302	=over 4
1532		2303
…		…
1546		2317
1547	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1548		2319
1549	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1550	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1551	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1552	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1553	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1554	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1555	}	2345	}
1556		2346
1557	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1558		2348
1559	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1572		2362
1573	=item $player_object->enter_link	2363	=item $player_object->enter_link
1574		2364
1575	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1576		2366
1577	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1578	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1579		2369
		2370	Will never block.
		2371
1580	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1581		2373
1582	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1583	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1584	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1585	to the emergency map position.	2377	fails, to the emergency map position.
1586		2378
1587	Might block.	2379	Might block.
1588		2380
1589	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1590		2392
1591	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1592	my ($self) = @_;	2394	my ($self) = @_;
1593		2395
1594	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1595		2397
1596	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1597		2399
1598	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1599	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1600		2402
1601	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1602	}	2404	}
1603		2405
1604	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1605	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1606		2410
1607	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1608		2412
1609	unless ($map) {	2413	unless ($map) {
1610	# restore original map position	2414	# restore original map position
…		…
1624	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1625	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1626	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1627		2431
1628	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1629		2434
1630	return unless $self->contr->active;	2435	return unless $self->contr->active;
1631	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1632	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1633	}	2440	}
1634		2441
1635	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1636	on_logout => sub {
1637	my ($pl) = @_;
1638		2443
1639	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1640	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1641	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1642	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1643	};	2448	be called at the end of this process.
1644	}
1645	},
1646	on_login => sub {
1647	my ($pl) = @_;
1648		2449
1649	# try to abort aborted map switching on player login :)
1650	# should happen only on crashes
1651	if ($pl->ob->{_link_pos}) {
1652	$pl->ob->enter_link;
1653	(async {
1654	# we need this sleep as the login has a concurrent enter_exit running
1655	# and this sleep increases chances of the player not ending up in scorn
1656	$pl->ob->reply (undef,
1657	"There was an internal problem at your last logout, "
1658	. "the server will try to bring you to your intended destination in a second.",
1659	cf::NDI_RED);
1660	Coro::Timer::sleep 1;
1661	$pl->ob->leave_link;
1662	})->prio (2);
1663	}
1664	},
1665	);
1666
1667	=item $player_object->goto ($path, $x, $y)
1668
1669	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1670		2453
1671	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1672	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1673		2459
1674	$self->enter_link;	2460	$self->enter_link;
1675		2461
1676	(async {	2462	(async {
1677	$path = new cf::path $path;	2463	my $map = eval {
1678
1679	my $map = cf::map::find $path->as_string;	2464	my $map = cf::map::find $path;
		2465
		2466	if ($map) {
1680	$map = $map->customise_for ($self) if $map;	2467	$map = $map->customise_for ($self);
1681		2468	$map = $check->($map) if $check && $map;
1682	# warn "entering ", $map->path, " at ($x, $y)\n"	2469	} else {
1683	# if $map;
1684
1685	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2470	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
1686		2472
		2473	$map
		2474	};
		2475
		2476	if ($@) {
		2477	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2478	LOG llevError | logBacktrace, Carp::longmess $@;
		2479	}
		2480
		2481	if ($gen == $self->{_goto_generation}) {
		2482	delete $self->{_goto_generation};
1687	$self->leave_link ($map, $x, $y);	2483	$self->leave_link ($map, $x, $y);
		2484	}
		2485
		2486	$done->() if $done;
1688	})->prio (1);	2487	})->prio (1);
1689	}	2488	}
1690		2489
1691	=item $player_object->enter_exit ($exit_object)	2490	=item $player_object->enter_exit ($exit_object)
1692		2491
…		…
1694		2493
1695	sub parse_random_map_params {	2494	sub parse_random_map_params {
1696	my ($spec) = @_;	2495	my ($spec) = @_;
1697		2496
1698	my $rmp = { # defaults	2497	my $rmp = { # defaults
1699	xsize => 10,	2498	xsize => (cf::rndm 15, 40),
1700	ysize => 10,	2499	ysize => (cf::rndm 15, 40),
		2500	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2501	#layout => string,
1701	};	2502	};
1702		2503
1703	for (split /\n/, $spec) {	2504	for (split /\n/, $spec) {
1704	my ($k, $v) = split /\s+/, $_, 2;	2505	my ($k, $v) = split /\s+/, $_, 2;
1705		2506
…		…
1709	$rmp	2510	$rmp
1710	}	2511	}
1711		2512
1712	sub prepare_random_map {	2513	sub prepare_random_map {
1713	my ($exit) = @_;	2514	my ($exit) = @_;
		2515
		2516	my $guard = cf::lock_acquire "exit_prepare:$exit";
1714		2517
1715	# all this does is basically replace the /! path by	2518	# all this does is basically replace the /! path by
1716	# a new random map path (?random/...) with a seed	2519	# a new random map path (?random/...) with a seed
1717	# that depends on the exit object	2520	# that depends on the exit object
1718		2521
1719	my $rmp = parse_random_map_params $exit->msg;	2522	my $rmp = parse_random_map_params $exit->msg;
1720		2523
1721	if ($exit->map) {	2524	if ($exit->map) {
1722	$rmp->{region} = $exit->map->region_name;	2525	$rmp->{region} = $exit->region->name;
1723	$rmp->{origin_map} = $exit->map->path;	2526	$rmp->{origin_map} = $exit->map->path;
1724	$rmp->{origin_x} = $exit->x;	2527	$rmp->{origin_x} = $exit->x;
1725	$rmp->{origin_y} = $exit->y;	2528	$rmp->{origin_y} = $exit->y;
1726	}	2529	}
1727		2530
1728	$rmp->{random_seed} ||= $exit->random_seed;	2531	$rmp->{random_seed} ||= $exit->random_seed;
1729		2532
1730	my $data = cf::to_json $rmp;	2533	my $data = cf::to_json $rmp;
1731	my $md5 = Digest::MD5::md5_hex $data;	2534	my $md5 = Digest::MD5::md5_hex $data;
		2535	my $meta = "$RANDOMDIR/$md5.meta";
1732		2536
1733	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2537	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1734	aio_write $fh, 0, (length $data), $data, 0;	2538	aio_write $fh, 0, (length $data), $data, 0;
		2539	undef $fh;
		2540	aio_rename "$meta~", $meta;
1735		2541
1736	$exit->slaying ("?random/$md5");	2542	$exit->slaying ("?random/$md5");
1737	$exit->msg (undef);	2543	$exit->msg (undef);
1738	}	2544	}
1739	}	2545	}
…		…
1741	sub cf::object::player::enter_exit {	2547	sub cf::object::player::enter_exit {
1742	my ($self, $exit) = @_;	2548	my ($self, $exit) = @_;
1743		2549
1744	return unless $self->type == cf::PLAYER;	2550	return unless $self->type == cf::PLAYER;
1745		2551
		2552	if ($exit->slaying eq "/!") {
		2553	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2554	# the problem is that $exit might not survive long enough
		2555	# so it needs to be done right now, right here
		2556	cf::sync_job { prepare_random_map $exit };
		2557	}
		2558
		2559	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2560	my $hp = $exit->stats->hp;
		2561	my $sp = $exit->stats->sp;
		2562
1746	$self->enter_link;	2563	$self->enter_link;
		2564
		2565	# if exit is damned, update players death & WoR home-position
		2566	$self->contr->savebed ($slaying, $hp, $sp)
		2567	if $exit->flag (FLAG_DAMNED);
1747		2568
1748	(async {	2569	(async {
1749	$self->deactivate_recursive; # just to be sure	2570	$self->deactivate_recursive; # just to be sure
1750	unless (eval {	2571	unless (eval {
1751	prepare_random_map $exit	2572	$self->goto ($slaying, $hp, $sp);
1752	if $exit->slaying eq "/!";
1753
1754	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1755	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1756		2573
1757	1;	2574	1;
1758	}) {	2575	}) {
1759	$self->message ("Something went wrong deep within the crossfire server. "	2576	$self->message ("Something went wrong deep within the crossfire server. "
1760	. "I'll try to bring you back to the map you were before. "	2577	. "I'll try to bring you back to the map you were before. "
1761	. "Please report this to the dungeon master",	2578	. "Please report this to the dungeon master!",
1762	cf::NDI_UNIQUE | cf::NDI_RED);	2579	cf::NDI_UNIQUE | cf::NDI_RED);
1763		2580
1764	warn "ERROR in enter_exit: $@";	2581	warn "ERROR in enter_exit: $@";
1765	$self->leave_link;	2582	$self->leave_link;
1766	}	2583	}
1767	})->prio (1);	2584	})->prio (1);
…		…
1780		2597
1781	sub cf::client::send_drawinfo {	2598	sub cf::client::send_drawinfo {
1782	my ($self, $text, $flags) = @_;	2599	my ($self, $text, $flags) = @_;
1783		2600
1784	utf8::encode $text;	2601	utf8::encode $text;
1785	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2602	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1786	}	2603	}
1787		2604
		2605	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2606
		2607	Send a drawinfo or msg packet to the client, formatting the msg for the
		2608	client if neccessary. C<$type> should be a string identifying the type of
		2609	the message, with C<log> being the default. If C<$color> is negative, suppress
		2610	the message unless the client supports the msg packet.
		2611
		2612	=cut
		2613
		2614	our %CHANNEL = (
		2615	"c/identify" => {
		2616	id => "identify",
		2617	title => "Identify",
		2618	reply => undef,
		2619	tooltip => "Items recently identified",
		2620	},
		2621	"c/examine" => {
		2622	id => "examine",
		2623	title => "Examine",
		2624	reply => undef,
		2625	tooltip => "Signs and other items you examined",
		2626	},
		2627	);
		2628
		2629	sub cf::client::send_msg {
		2630	my ($self, $channel, $msg, $color, @extra) = @_;
		2631
		2632	$msg = $self->pl->expand_cfpod ($msg);
		2633
		2634	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2635
		2636	# check predefined channels, for the benefit of C
		2637	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2638
		2639	if (ref $channel) {
		2640	# send meta info to client, if not yet sent
		2641	unless (exists $self->{channel}{$channel->{id}}) {
		2642	$self->{channel}{$channel->{id}} = $channel;
		2643	$self->ext_msg (channel_info => $channel)
		2644	if $self->can_msg;
		2645	}
		2646
		2647	$channel = $channel->{id};
		2648	}
		2649
		2650	return unless @extra || length $msg;
		2651
		2652	if ($self->can_msg) {
		2653	# default colour, mask it out
		2654	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2655	if $color & cf::NDI_DEF;
		2656
		2657	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2658	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2659	} else {
		2660	if ($color >= 0) {
		2661	# replace some tags by gcfclient-compatible ones
		2662	for ($msg) {
		2663	1 while
		2664	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2665	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2666	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2667	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2668	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2669	}
		2670
		2671	$color &= cf::NDI_COLOR_MASK;
		2672
		2673	utf8::encode $msg;
		2674
		2675	if (0 && $msg =~ /\[/) {
		2676	# COMMAND/INFO
		2677	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2678	} else {
		2679	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2680	$self->send_packet ("drawinfo $color $msg")
		2681	}
		2682	}
		2683	}
		2684	}
		2685
		2686	=item $client->ext_msg ($type, @msg)
		2687
		2688	Sends an ext event to the client.
		2689
		2690	=cut
		2691
		2692	sub cf::client::ext_msg($$@) {
		2693	my ($self, $type, @msg) = @_;
		2694
		2695	if ($self->extcmd == 2) {
		2696	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2697	} elsif ($self->extcmd == 1) { # TODO: remove
		2698	push @msg, msgtype => "event_$type";
		2699	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2700	}
		2701	}
		2702
		2703	=item $client->ext_reply ($msgid, @msg)
		2704
		2705	Sends an ext reply to the client.
		2706
		2707	=cut
		2708
		2709	sub cf::client::ext_reply($$@) {
		2710	my ($self, $id, @msg) = @_;
		2711
		2712	if ($self->extcmd == 2) {
		2713	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2714	} elsif ($self->extcmd == 1) {
		2715	#TODO: version 1, remove
		2716	unshift @msg, msgtype => "reply", msgid => $id;
		2717	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2718	}
		2719	}
1788		2720
1789	=item $success = $client->query ($flags, "text", \&cb)	2721	=item $success = $client->query ($flags, "text", \&cb)
1790		2722
1791	Queues a query to the client, calling the given callback with	2723	Queues a query to the client, calling the given callback with
1792	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2724	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1793	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2725	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1794		2726
1795	Queries can fail, so check the return code. Or don't, as queries will become	2727	Queries can fail, so check the return code. Or don't, as queries will
1796	reliable at some point in the future.	2728	become reliable at some point in the future.
1797		2729
1798	=cut	2730	=cut
1799		2731
1800	sub cf::client::query {	2732	sub cf::client::query {
1801	my ($self, $flags, $text, $cb) = @_;	2733	my ($self, $flags, $text, $cb) = @_;
…		…
1809	utf8::encode $text;	2741	utf8::encode $text;
1810	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2742	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1811		2743
1812	$self->send_packet ($self->{query_queue}[0][0])	2744	$self->send_packet ($self->{query_queue}[0][0])
1813	if @{ $self->{query_queue} } == 1;	2745	if @{ $self->{query_queue} } == 1;
		2746
		2747	1
1814	}	2748	}
1815		2749
1816	cf::client->attach (	2750	cf::client->attach (
		2751	on_connect => sub {
		2752	my ($ns) = @_;
		2753
		2754	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2755	},
1817	on_reply => sub {	2756	on_reply => sub {
1818	my ($ns, $msg) = @_;	2757	my ($ns, $msg) = @_;
1819		2758
1820	# this weird shuffling is so that direct followup queries	2759	# this weird shuffling is so that direct followup queries
1821	# get handled first	2760	# get handled first
1822	my $queue = delete $ns->{query_queue}	2761	my $queue = delete $ns->{query_queue}
1823	or return; # be conservative, not sure how that can happen, but we saw a crash here	2762	or return; # be conservative, not sure how that can happen, but we saw a crash here
1824		2763
1825	(shift @$queue)->[1]->($msg);	2764	(shift @$queue)->[1]->($msg);
		2765	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1826		2766
1827	push @{ $ns->{query_queue} }, @$queue;	2767	push @{ $ns->{query_queue} }, @$queue;
1828		2768
1829	if (@{ $ns->{query_queue} } == @$queue) {	2769	if (@{ $ns->{query_queue} } == @$queue) {
1830	if (@$queue) {	2770	if (@$queue) {
…		…
1832	} else {	2772	} else {
1833	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2773	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1834	}	2774	}
1835	}	2775	}
1836	},	2776	},
		2777	on_exticmd => sub {
		2778	my ($ns, $buf) = @_;
		2779
		2780	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2781
		2782	if (ref $msg) {
		2783	my ($type, $reply, @payload) =
		2784	"ARRAY" eq ref $msg
		2785	? @$msg
		2786	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2787
		2788	my @reply;
		2789
		2790	if (my $cb = $EXTICMD{$type}) {
		2791	@reply = $cb->($ns, @payload);
		2792	}
		2793
		2794	$ns->ext_reply ($reply, @reply)
		2795	if $reply;
		2796
		2797	} else {
		2798	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2799	}
		2800
		2801	cf::override;
		2802	},
1837	);	2803	);
1838		2804
1839	=item $client->async (\&cb)	2805	=item $client->async (\&cb)
1840		2806
1841	Create a new coroutine, running the specified callback. The coroutine will	2807	Create a new coroutine, running the specified callback. The coroutine will
…		…
1882	our $safe = new Safe "safe";	2848	our $safe = new Safe "safe";
1883	our $safe_hole = new Safe::Hole;	2849	our $safe_hole = new Safe::Hole;
1884		2850
1885	$SIG{FPE} = 'IGNORE';	2851	$SIG{FPE} = 'IGNORE';
1886		2852
1887	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2853	$safe->permit_only (Opcode::opset qw(
		2854	:base_core :base_mem :base_orig :base_math
		2855	grepstart grepwhile mapstart mapwhile
		2856	sort time
		2857	));
1888		2858
1889	# here we export the classes and methods available to script code	2859	# here we export the classes and methods available to script code
1890		2860
1891	=pod	2861	=pod
1892		2862
1893	The following fucntions and emthods are available within a safe environment:	2863	The following functions and methods are available within a safe environment:
1894		2864
1895	cf::object contr pay_amount pay_player map	2865	cf::object
		2866	contr pay_amount pay_player map x y force_find force_add
		2867	insert remove name archname title slaying race decrease_ob_nr
		2868
1896	cf::object::player player	2869	cf::object::player
1897	cf::player peaceful	2870	player
1898	cf::map trigger	2871
		2872	cf::player
		2873	peaceful
		2874
		2875	cf::map
		2876	trigger
1899		2877
1900	=cut	2878	=cut
1901		2879
1902	for (	2880	for (
1903	["cf::object" => qw(contr pay_amount pay_player map)],	2881	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2882	insert remove inv name archname title slaying race
		2883	decrease_ob_nr)],
1904	["cf::object::player" => qw(player)],	2884	["cf::object::player" => qw(player)],
1905	["cf::player" => qw(peaceful)],	2885	["cf::player" => qw(peaceful)],
1906	["cf::map" => qw(trigger)],	2886	["cf::map" => qw(trigger)],
1907	) {	2887	) {
1908	no strict 'refs';	2888	no strict 'refs';
…		…
1979	=back	2959	=back
1980		2960
1981	=cut	2961	=cut
1982		2962
1983	#############################################################################	2963	#############################################################################
		2964	# the server's init and main functions
1984		2965
1985	=head2 EXTENSION DATABASE SUPPORT	2966	sub load_facedata($) {
		2967	my ($path) = @_;
1986		2968
1987	Crossfire maintains a very simple database for extension use. It can	2969	# HACK to clear player env face cache, we need some signal framework
1988	currently store anything that can be serialised using Storable, which	2970	# for this (global event?)
1989	excludes objects.	2971	%ext::player_env::MUSIC_FACE_CACHE = ();
1990		2972
1991	The parameter C<$family> should best start with the name of the extension	2973	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1992	using it, it should be unique.
1993		2974
1994	=over 4	2975	warn "loading facedata from $path\n";
1995		2976
1996	=item $hashref = cf::db_get $family	2977	my $facedata;
		2978	0 < aio_load $path, $facedata
		2979	or die "$path: $!";
1997		2980
1998	Return a hashref for use by the extension C<$family>, which can be	2981	$facedata = Coro::Storable::thaw $facedata;
1999	modified. After modifications, you have to call C<cf::db_dirty> or
2000	C<cf::db_sync>.
2001		2982
2002	=item $value = cf::db_get $family => $key	2983	$facedata->{version} == 2
		2984	or cf::cleanup "$path: version mismatch, cannot proceed.";
2003		2985
2004	Returns a single value from the database	2986	# patch in the exptable
2005		2987	$facedata->{resource}{"res/exp_table"} = {
2006	=item cf::db_put $family => $hashref	2988	type => FT_RSRC,
2007		2989	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2008	Stores the given family hashref into the database. Updates are delayed, if
2009	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2010
2011	=item cf::db_put $family => $key => $value
2012
2013	Stores the given C<$value> in the family hash. Updates are delayed, if you
2014	want the data to be synced to disk immediately, use C<cf::db_sync>.
2015
2016	=item cf::db_dirty
2017
2018	Marks the database as dirty, to be updated at a later time.
2019
2020	=item cf::db_sync
2021
2022	Immediately write the database to disk I<if it is dirty>.
2023
2024	=cut
2025
2026	our $DB;
2027
2028	{
2029	my $path = cf::localdir . "/database.pst";
2030
2031	sub db_load() {
2032	$DB = stat $path ? Storable::retrieve $path : { };
2033	}
2034
2035	my $pid;
2036
2037	sub db_save() {
2038	waitpid $pid, 0 if $pid;
2039	if (0 == ($pid = fork)) {
2040	$DB->{_meta}{version} = 1;
2041	Storable::nstore $DB, "$path~";
2042	rename "$path~", $path;
2043	cf::_exit 0 if defined $pid;
2044	}
2045	}
2046
2047	my $dirty;
2048
2049	sub db_sync() {
2050	db_save if $dirty;
2051	undef $dirty;
2052	}
2053
2054	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2055	db_sync;
2056	});	2990	};
		2991	cf::cede_to_tick;
2057		2992
2058	sub db_dirty() {
2059	$dirty = 1;
2060	$idle->start;
2061	}	2993	{
		2994	my $faces = $facedata->{faceinfo};
2062		2995
2063	sub db_get($;$) {	2996	while (my ($face, $info) = each %$faces) {
2064	@_ >= 2	2997	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2065	? $DB->{$_[0]}{$_[1]}	2998	cf::face::set_visibility $idx, $info->{visibility};
2066	: ($DB->{$_[0]} ||= { })	2999	cf::face::set_magicmap $idx, $info->{magicmap};
2067	}	3000	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3001	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2068		3002
2069	sub db_put($$;$) {	3003	cf::cede_to_tick;
2070	if (@_ >= 3) {
2071	$DB->{$_[0]}{$_[1]} = $_[2];
2072	} else {
2073	$DB->{$_[0]} = $_[1];
2074	}
2075	db_dirty;
2076	}
2077
2078	cf::global->attach (
2079	prio => 10000,
2080	on_cleanup => sub {
2081	db_sync;
2082	},	3004	}
2083	);
2084	}
2085		3005
2086	#############################################################################	3006	while (my ($face, $info) = each %$faces) {
2087	# the server's main()	3007	next unless $info->{smooth};
		3008	my $idx = cf::face::find $face
		3009	or next;
		3010	if (my $smooth = cf::face::find $info->{smooth}) {
		3011	cf::face::set_smooth $idx, $smooth;
		3012	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3013	} else {
		3014	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3015	}
2088		3016
2089	sub cfg_load {	3017	cf::cede_to_tick;
		3018	}
		3019	}
		3020
		3021	{
		3022	my $anims = $facedata->{animinfo};
		3023
		3024	while (my ($anim, $info) = each %$anims) {
		3025	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3026	cf::cede_to_tick;
		3027	}
		3028
		3029	cf::anim::invalidate_all; # d'oh
		3030	}
		3031
		3032	{
		3033	# TODO: for gcfclient pleasure, we should give resources
		3034	# that gcfclient doesn't grok a >10000 face index.
		3035	my $res = $facedata->{resource};
		3036
		3037	my $soundconf = delete $res->{"res/sound.conf"};
		3038
		3039	while (my ($name, $info) = each %$res) {
		3040	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3041	my $data;
		3042
		3043	if ($info->{type} & 1) {
		3044	# prepend meta info
		3045
		3046	my $meta = $enc->encode ({
		3047	name => $name,
		3048	%{ $info->{meta} || {} },
		3049	});
		3050
		3051	$data = pack "(w/a*)*", $meta, $info->{data};
		3052	} else {
		3053	$data = $info->{data};
		3054	}
		3055
		3056	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3057	cf::face::set_type $idx, $info->{type};
		3058
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	if ($soundconf) {
		3063	$soundconf = $enc->decode (delete $soundconf->{data});
		3064
		3065	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3066	my $sound = $soundconf->{compat}[$_]
		3067	or next;
		3068
		3069	my $face = cf::face::find "sound/$sound->[1]";
		3070	cf::sound::set $sound->[0] => $face;
		3071	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3072	}
		3073
		3074	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3075	my $face = cf::face::find "sound/$v";
		3076	cf::sound::set $k => $face;
		3077	}
		3078	}
		3079	}
		3080
		3081	1
		3082	}
		3083
		3084	register_exticmd fx_want => sub {
		3085	my ($ns, $want) = @_;
		3086
		3087	while (my ($k, $v) = each %$want) {
		3088	$ns->fx_want ($k, $v);
		3089	}
		3090	};
		3091
		3092	sub reload_regions {
		3093	# HACK to clear player env face cache, we need some signal framework
		3094	# for this (global event?)
		3095	%ext::player_env::MUSIC_FACE_CACHE = ();
		3096
		3097	load_resource_file "$MAPDIR/regions"
		3098	or die "unable to load regions file\n";
		3099
		3100	for (cf::region::list) {
		3101	$_->{match} = qr/$_->{match}/
		3102	if exists $_->{match};
		3103	}
		3104	}
		3105
		3106	sub reload_facedata {
		3107	load_facedata "$DATADIR/facedata"
		3108	or die "unable to load facedata\n";
		3109	}
		3110
		3111	sub reload_archetypes {
		3112	load_resource_file "$DATADIR/archetypes"
		3113	or die "unable to load archetypes\n";
		3114	#d# NEED to laod twice to resolve forward references
		3115	# this really needs to be done in an extra post-pass
		3116	# (which needs to be synchronous, so solve it differently)
		3117	load_resource_file "$DATADIR/archetypes"
		3118	or die "unable to load archetypes\n";
		3119	}
		3120
		3121	sub reload_treasures {
		3122	load_resource_file "$DATADIR/treasures"
		3123	or die "unable to load treasurelists\n";
		3124	}
		3125
		3126	sub reload_resources {
		3127	warn "reloading resource files...\n";
		3128
		3129	reload_regions;
		3130	reload_facedata;
		3131	#reload_archetypes;#d#
		3132	reload_archetypes;
		3133	reload_treasures;
		3134
		3135	warn "finished reloading resource files\n";
		3136	}
		3137
		3138	sub init {
		3139	reload_resources;
		3140	}
		3141
		3142	sub reload_config {
2090	open my $fh, "<:utf8", cf::confdir . "/config"	3143	open my $fh, "<:utf8", "$CONFDIR/config"
2091	or return;	3144	or return;
2092		3145
2093	local $/;	3146	local $/;
2094	*CFG = YAML::Syck::Load <$fh>;	3147	*CFG = YAML::Syck::Load <$fh>;
2095		3148
…		…
2109		3162
2110	sub main {	3163	sub main {
2111	# we must not ever block the main coroutine	3164	# we must not ever block the main coroutine
2112	local $Coro::idle = sub {	3165	local $Coro::idle = sub {
2113	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3166	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3167	(async {
2114	async { Event::one_event };	3168	Event::one_event;
		3169	})->prio (Coro::PRIO_MAX);
2115	};	3170	};
2116		3171
2117	cfg_load;	3172	reload_config;
2118	db_load;	3173	db_init;
2119	load_extensions;	3174	load_extensions;
		3175
		3176	$TICK_WATCHER->start;
2120	Event::loop;	3177	Event::loop;
2121	}	3178	}
2122		3179
2123	#############################################################################	3180	#############################################################################
2124	# initialisation	3181	# initialisation and cleanup
2125		3182
		3183	# install some emergency cleanup handlers
		3184	BEGIN {
		3185	for my $signal (qw(INT HUP TERM)) {
		3186	Event->signal (
		3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
		3189	signal => $signal,
		3190	prio => 0,
		3191	cb => sub {
		3192	cf::cleanup "SIG$signal";
		3193	},
		3194	);
		3195	}
		3196	}
		3197
		3198	sub write_runtime {
		3199	my $runtime = "$LOCALDIR/runtime";
		3200
		3201	# first touch the runtime file to show we are still running:
		3202	# the fsync below can take a very very long time.
		3203
		3204	IO::AIO::aio_utime $runtime, undef, undef;
		3205
		3206	my $guard = cf::lock_acquire "write_runtime";
		3207
		3208	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3209	or return;
		3210
		3211	my $value = $cf::RUNTIME + 90 + 10;
		3212	# 10 is the runtime save interval, for a monotonic clock
		3213	# 60 allows for the watchdog to kill the server.
		3214
		3215	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3216	and return;
		3217
		3218	# always fsync - this file is important
		3219	aio_fsync $fh
		3220	and return;
		3221
		3222	# touch it again to show we are up-to-date
		3223	aio_utime $fh, undef, undef;
		3224
		3225	close $fh
		3226	or return;
		3227
		3228	aio_rename "$runtime~", $runtime
		3229	and return;
		3230
		3231	warn "runtime file written.\n";
		3232
		3233	1
		3234	}
		3235
		3236	sub emergency_save() {
		3237	my $freeze_guard = cf::freeze_mainloop;
		3238
		3239	warn "enter emergency perl save\n";
		3240
		3241	cf::sync_job {
		3242	# use a peculiar iteration method to avoid tripping on perl
		3243	# refcount bugs in for. also avoids problems with players
		3244	# and maps saved/destroyed asynchronously.
		3245	warn "begin emergency player save\n";
		3246	for my $login (keys %cf::PLAYER) {
		3247	my $pl = $cf::PLAYER{$login} or next;
		3248	$pl->valid or next;
		3249	$pl->save;
		3250	}
		3251	warn "end emergency player save\n";
		3252
		3253	warn "begin emergency map save\n";
		3254	for my $path (keys %cf::MAP) {
		3255	my $map = $cf::MAP{$path} or next;
		3256	$map->valid or next;
		3257	$map->save;
		3258	}
		3259	warn "end emergency map save\n";
		3260
		3261	warn "begin emergency database checkpoint\n";
		3262	BDB::db_env_txn_checkpoint $DB_ENV;
		3263	warn "end emergency database checkpoint\n";
		3264	};
		3265
		3266	warn "leave emergency perl save\n";
		3267	}
		3268
		3269	sub post_cleanup {
		3270	my ($make_core) = @_;
		3271
		3272	warn Carp::longmess "post_cleanup backtrace"
		3273	if $make_core;
		3274	}
		3275
2126	sub reload() {	3276	sub do_reload_perl() {
2127	# can/must only be called in main	3277	# can/must only be called in main
2128	if ($Coro::current != $Coro::main) {	3278	if ($Coro::current != $Coro::main) {
2129	warn "can only reload from main coroutine\n";	3279	warn "can only reload from main coroutine";
2130	return;	3280	return;
2131	}	3281	}
2132		3282
2133	warn "reloading...";	3283	warn "reloading...";
2134		3284
2135	my $guard = freeze_mainloop;	3285	warn "entering sync_job";
		3286
		3287	cf::sync_job {
		3288	cf::write_runtime; # external watchdog should not bark
2136	cf::emergency_save;	3289	cf::emergency_save;
		3290	cf::write_runtime; # external watchdog should not bark
2137		3291
2138	eval {	3292	warn "syncing database to disk";
		3293	BDB::db_env_txn_checkpoint $DB_ENV;
		3294
2139	# if anything goes wrong in here, we should simply crash as we already saved	3295	# if anything goes wrong in here, we should simply crash as we already saved
2140		3296
2141	# cancel all watchers	3297	warn "cancelling all WF_AUTOCANCEL watchers";
2142	for (Event::all_watchers) {	3298	for (Event::all_watchers) {
2143	$_->cancel if $_->data & WF_AUTOCANCEL;	3299	$_->cancel if $_->data & WF_AUTOCANCEL;
2144	}	3300	}
2145		3301
		3302	warn "flushing outstanding aio requests";
		3303	for (;;) {
		3304	BDB::flush;
		3305	IO::AIO::flush;
		3306	Coro::cede;
		3307	last unless IO::AIO::nreqs || BDB::nreqs;
		3308	warn "iterate...";
		3309	}
		3310
		3311	++$RELOAD;
		3312
2146	# cancel all extension coros	3313	warn "cancelling all extension coros";
2147	$_->cancel for values %EXT_CORO;	3314	$_->cancel for values %EXT_CORO;
2148	%EXT_CORO = ();	3315	%EXT_CORO = ();
2149		3316
2150	# unload all extensions	3317	warn "removing commands";
2151	for (@exts) {	3318	%COMMAND = ();
		3319
		3320	warn "removing ext/exti commands";
		3321	%EXTCMD = ();
		3322	%EXTICMD = ();
		3323
		3324	warn "unloading/nuking all extensions";
		3325	for my $pkg (@EXTS) {
2152	warn "unloading <$_>";	3326	warn "... unloading $pkg";
2153	unload_extension $_;	3327
		3328	if (my $cb = $pkg->can ("unload")) {
		3329	eval {
		3330	$cb->($pkg);
		3331	1
		3332	} or warn "$pkg unloaded, but with errors: $@";
2154	}	3333	}
2155		3334
		3335	warn "... nuking $pkg";
		3336	Symbol::delete_package $pkg;
		3337	}
		3338
2156	# unload all modules loaded from $LIBDIR	3339	warn "unloading all perl modules loaded from $LIBDIR";
2157	while (my ($k, $v) = each %INC) {	3340	while (my ($k, $v) = each %INC) {
2158	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2159		3342
2160	warn "removing <$k>";	3343	warn "... unloading $k";
2161	delete $INC{$k};	3344	delete $INC{$k};
2162		3345
2163	$k =~ s/\.pm$//;	3346	$k =~ s/\.pm$//;
2164	$k =~ s/\//::/g;	3347	$k =~ s/\//::/g;
2165		3348
…		…
2168	}	3351	}
2169		3352
2170	Symbol::delete_package $k;	3353	Symbol::delete_package $k;
2171	}	3354	}
2172		3355
2173	# sync database to disk
2174	cf::db_sync;
2175	IO::AIO::flush;
2176
2177	# get rid of safe::, as good as possible	3356	warn "getting rid of safe::, as good as possible";
2178	Symbol::delete_package "safe::$_"	3357	Symbol::delete_package "safe::$_"
2179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3358	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2180		3359
2181	# remove register_script_function callbacks
2182	# TODO
2183
2184	# unload cf.pm "a bit"	3360	warn "unloading cf.pm \"a bit\"";
2185	delete $INC{"cf.pm"};	3361	delete $INC{"cf.pm"};
		3362	delete $INC{"cf/pod.pm"};
2186		3363
2187	# don't, removes xs symbols, too,	3364	# don't, removes xs symbols, too,
2188	# and global variables created in xs	3365	# and global variables created in xs
2189	#Symbol::delete_package __PACKAGE__;	3366	#Symbol::delete_package __PACKAGE__;
2190		3367
2191	# reload cf.pm	3368	warn "unload completed, starting to reload now";
		3369
2192	warn "reloading cf.pm";	3370	warn "reloading cf.pm";
2193	require cf;	3371	require cf;
2194	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3372	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2195		3373
2196	# load config and database again	3374	warn "loading config and database again";
2197	cf::cfg_load;	3375	cf::reload_config;
2198	cf::db_load;
2199		3376
2200	# load extensions
2201	warn "load extensions";	3377	warn "loading extensions";
2202	cf::load_extensions;	3378	cf::load_extensions;
2203		3379
2204	# reattach attachments to objects	3380	warn "reattaching attachments to objects/players";
2205	warn "reattach";	3381	_global_reattach; # objects, sockets
2206	_global_reattach;	3382	warn "reattaching attachments to maps";
2207	reattach $_ for values %MAP;	3383	reattach $_ for values %MAP;
2208	};	3384	warn "reattaching attachments to players";
		3385	reattach $_ for values %PLAYER;
2209		3386
2210	if ($@) {	3387	warn "leaving sync_job";
		3388
		3389	1
		3390	} or do {
2211	warn $@;	3391	warn $@;
2212	warn "error while reloading, exiting.";	3392	warn "error while reloading, exiting.";
2213	exit 1;	3393	exit 1;
2214	}	3394	};
2215		3395
2216	warn "reloaded successfully";	3396	warn "reloaded";
2217	};	3397	};
2218		3398
2219	#############################################################################	3399	our $RELOAD_WATCHER; # used only during reload
2220		3400
2221	unless ($LINK_MAP) {	3401	sub reload_perl() {
2222	$LINK_MAP = cf::map::new;	3402	# doing reload synchronously and two reloads happen back-to-back,
		3403	# coro crashes during coro_state_free->destroy here.
2223		3404
2224	$LINK_MAP->width (41);	3405	$RELOAD_WATCHER ||= Event->timer (
2225	$LINK_MAP->height (41);	3406	reentrant => 0,
2226	$LINK_MAP->alloc;
2227	$LINK_MAP->path ("{link}");
2228	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2229	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2230
2231	# dirty hack because... archetypes are not yet loaded
2232	Event->timer (
2233	after => 10,	3407	after => 0,
		3408	data => WF_AUTOCANCEL,
2234	cb => sub {	3409	cb => sub {
2235	$_[0]->w->cancel;	3410	do_reload_perl;
2236		3411	undef $RELOAD_WATCHER;
2237	# provide some exits "home"
2238	my $exit = cf::object::new "exit";
2239
2240	$exit->slaying ($EMERGENCY_POSITION->[0]);
2241	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2242	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2243
2244	$LINK_MAP->insert ($exit->clone, 19, 19);
2245	$LINK_MAP->insert ($exit->clone, 19, 20);
2246	$LINK_MAP->insert ($exit->clone, 19, 21);
2247	$LINK_MAP->insert ($exit->clone, 20, 19);
2248	$LINK_MAP->insert ($exit->clone, 20, 21);
2249	$LINK_MAP->insert ($exit->clone, 21, 19);
2250	$LINK_MAP->insert ($exit->clone, 21, 20);
2251	$LINK_MAP->insert ($exit->clone, 21, 21);
2252
2253	$exit->destroy;
2254	});	3412	},
2255		3413	);
2256	$LINK_MAP->{deny_save} = 1;
2257	$LINK_MAP->{deny_reset} = 1;
2258
2259	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2260	}	3414	}
2261
2262	register "<global>", __PACKAGE__;
2263		3415
2264	register_command "reload" => sub {	3416	register_command "reload" => sub {
2265	my ($who, $arg) = @_;	3417	my ($who, $arg) = @_;
2266		3418
2267	if ($who->flag (FLAG_WIZ)) {	3419	if ($who->flag (FLAG_WIZ)) {
2268	$who->message ("start of reload.");
2269	reload;
2270	$who->message ("end of reload.");	3420	$who->message ("reloading server.");
		3421	async { reload_perl };
2271	}	3422	}
2272	};	3423	};
2273		3424
2274	unshift @INC, $LIBDIR;	3425	unshift @INC, $LIBDIR;
		3426
		3427	my $bug_warning = 0;
		3428
		3429	our @WAIT_FOR_TICK;
		3430	our @WAIT_FOR_TICK_BEGIN;
		3431
		3432	sub wait_for_tick {
		3433	return unless $TICK_WATCHER->is_active;
		3434	return if $Coro::current == $Coro::main;
		3435
		3436	my $signal = new Coro::Signal;
		3437	push @WAIT_FOR_TICK, $signal;
		3438	$signal->wait;
		3439	}
		3440
		3441	sub wait_for_tick_begin {
		3442	return unless $TICK_WATCHER->is_active;
		3443	return if $Coro::current == $Coro::main;
		3444
		3445	my $signal = new Coro::Signal;
		3446	push @WAIT_FOR_TICK_BEGIN, $signal;
		3447	$signal->wait;
		3448	}
		3449
		3450	our $stat_fh;
		3451	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2275		3452
2276	$TICK_WATCHER = Event->timer (	3453	$TICK_WATCHER = Event->timer (
2277	reentrant => 0,	3454	reentrant => 0,
		3455	parked => 1,
2278	prio => 0,	3456	prio => 0,
2279	at => $NEXT_TICK || $TICK,	3457	at => $NEXT_TICK || $TICK,
2280	data => WF_AUTOCANCEL,	3458	data => WF_AUTOCANCEL,
2281	cb => sub {	3459	cb => sub {
		3460	if ($Coro::current != $Coro::main) {
		3461	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3462	unless ++$bug_warning > 10;
		3463	return;
		3464	}
		3465
		3466	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3467
		3468	$NOW = $tick_start = Event::time;
		3469
2282	cf::server_tick; # one server iteration	3470	cf::server_tick; # one server iteration
		3471
2283	$RUNTIME += $TICK;	3472	$RUNTIME += $TICK;
2284	$NEXT_TICK += $TICK;	3473	$NEXT_TICK += $TICK;
2285		3474
		3475	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3476	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3477	Coro::async_pool {
		3478	write_runtime
		3479	or warn "ERROR: unable to write runtime file: $!";
		3480	};
		3481	}
		3482
		3483	# my $AFTER = Event::time;
		3484	# warn $AFTER - $NOW;#d#
		3485
		3486	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3487	$sig->send;
		3488	}
		3489	while (my $sig = shift @WAIT_FOR_TICK) {
		3490	$sig->send;
		3491	}
		3492
		3493	$NOW = Event::time;
		3494
2286	# if we are delayed by four ticks or more, skip them all	3495	# if we are delayed by four ticks or more, skip them all
2287	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3496	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2288		3497
2289	$TICK_WATCHER->at ($NEXT_TICK);	3498	$TICK_WATCHER->at ($NEXT_TICK);
2290	$TICK_WATCHER->start;	3499	$TICK_WATCHER->start;
		3500
		3501	$LOAD = ($NOW - $tick_start) / $TICK;
		3502	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3503
		3504	_post_tick;
		3505
		3506	# gather some statistics#d#
		3507	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3508	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2291	},	3509	},
2292	);	3510	);
2293		3511
		3512	{
		3513	BDB::min_parallel 8;
2294	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2295		3515	$BDB_POLL_WATCHER = Event->io (
2296	Event->io (	3516	reentrant => 0,
2297	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2298	poll => 'r',	3518	poll => 'r',
2299	prio => 5,	3519	prio => 0,
2300	data => WF_AUTOCANCEL,
2301	cb => \&IO::AIO::poll_cb,
2302	);
2303
2304	Event->timer (
2305	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
		3542	cf::sync_job {
		3543	eval {
		3544	BDB::db_env_open
		3545	$DB_ENV,
		3546	$BDBDIR,
		3547	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3548	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3549	0666;
		3550
		3551	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3552
		3553	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3554	| BDB::LOG_AUTOREMOVE, 1);
		3555	$DB_ENV->set_lk_detect;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_CHECKPOINT_WATCHER = Event->timer (
2306	after => 0,	3563	after => 11,
2307	interval => 10,	3564	interval => 60,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2308	cb => sub {	3568	cb => sub {
2309	(Coro::unblock_sub {	3569	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2310	write_runtime	3570	},
2311	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_TRICKLE_WATCHER = Event->timer (
		3573	after => 5,
		3574	interval => 10,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3580	},
		3581	);
		3582	}
		3583
		3584	{
		3585	IO::AIO::min_parallel 8;
		3586
		3587	undef $Coro::AIO::WATCHER;
		3588	IO::AIO::max_poll_time $TICK * 0.1;
		3589	$AIO_POLL_WATCHER = Event->io (
		3590	reentrant => 0,
		3591	data => WF_AUTOCANCEL,
		3592	fd => IO::AIO::poll_fileno,
		3593	poll => 'r',
		3594	prio => 6,
		3595	cb => \&IO::AIO::poll_cb,
		3596	);
		3597	}
		3598
		3599	my $_log_backtrace;
		3600
		3601	sub _log_backtrace {
		3602	my ($msg, @addr) = @_;
		3603
		3604	$msg =~ s/\n//;
		3605
		3606	# limit the # of concurrent backtraces
		3607	if ($_log_backtrace < 2) {
		3608	++$_log_backtrace;
		3609	async {
		3610	my @bt = fork_call {
		3611	@addr = map { sprintf "%x", $_ } @addr;
		3612	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3613	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3614	or die "addr2line: $!";
		3615
		3616	my @funcs;
		3617	my @res = <$fh>;
		3618	chomp for @res;
		3619	while (@res) {
		3620	my ($func, $line) = splice @res, 0, 2, ();
		3621	push @funcs, "[$func] $line";
		3622	}
		3623
		3624	@funcs
		3625	};
		3626
		3627	LOG llevInfo, "[ABT] $msg\n";
		3628	LOG llevInfo, "[ABT] $_\n" for @bt;
		3629	--$_log_backtrace;
2312	})->();	3630	};
		3631	} else {
		3632	LOG llevInfo, "[ABT] $msg\n";
		3633	LOG llevInfo, "[ABT] [suppressed]\n";
2313	},	3634	}
2314	);	3635	}
		3636
		3637	# load additional modules
		3638	use cf::pod;
2315		3639
2316	END { cf::emergency_save }	3640	END { cf::emergency_save }
2317		3641
2318	1	3642	1
2319		3643

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