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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.150 by root, Mon Jan 8 19:25:53 2007 UTC vs.
Revision 1.368 by root, Wed Sep 12 11:18:25 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	Coro::AIO::aio_rename $path, $temp;	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;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1174	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
1175	}	1439	}
1176		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;
		1480	}
		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
1177	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1178		1565
1179	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1180		1567
1181	=cut	1568	=cut
1182		1569
1183	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1184	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1185		1572
1186	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1187
1188	$self->send ("ext " . cf::to_json \%msg);
1189	}	1574	}
1190		1575
1191	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		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	}
1192		1616
1193	=back	1617	=back
1194
1195		1618
1196	=head3 cf::map	1619	=head3 cf::map
1197		1620
1198	=over 4	1621	=over 4
1199		1622
…		…
1202	package cf::map;	1625	package cf::map;
1203		1626
1204	use Fcntl;	1627	use Fcntl;
1205	use Coro::AIO;	1628	use Coro::AIO;
1206		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1207	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1208	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1209		1636
1210	sub generate_random_map {	1637	sub generate_random_map {
1211	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1212
1213	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1214	cf::map::_create_random_map	1640	$self->_create_random_map (
1215	$path,
1216	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1217	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1218	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1219	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1220	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1221	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1222	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1223	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1224	$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},
1225	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1226	(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"
1227	}	1780	}
1228		1781
1229	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1230	# all maps in C++...	1783	# all maps in C++...
1231	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1233		1786
1234	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1235	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1236	}	1789	}
1237		1790
		1791	sub decay_objects {
		1792	my ($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
1238	sub try_load_header($) {	1807	sub load_header_from($) {
1239	my ($path) = @_;	1808	my ($self, $path) = @_;
1240		1809
1241	utf8::encode $path;	1810	utf8::encode $path;
1242	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1243	or return;	1812	or return;
1244		1813
1245	my $map = cf::map::new	1814	$self->_load_header ($f)
1246	or return;	1815	or return;
1247		1816
1248	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1249	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1250		1819
1251	$map->load_header ($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
1252	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1253		1866
1254	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1255		1869
1256	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1257	}	1874	}
1258		1875
1259	sub find;	1876	sub find;
1260	sub find {	1877	sub find {
1261	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1262		1879
1263	#warn "find<$path,$origin>\n";#d#
1264
1265	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1266	my $key = $path->as_string;
1267		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1268	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1269		1884
1270	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1271	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
1272		1888
1273	# do it the slow way	1889	my $map = new_from_path cf::map $path
1274	my $map = try_load_header $path->save_path;
1275
1276	Coro::cede;
1277
1278	if ($map) {
1279	$map->last_access ((delete $map->{last_access})
1280	|| $cf::RUNTIME); #d#
1281	# safety
1282	$map->{instantiate_time} = $cf::RUNTIME
1283	if $map->{instantiate_time} > $cf::RUNTIME;
1284	} else {
1285	if (my $rmp = $path->random_map_params) {
1286	$map = generate_random_map $key, $rmp;
1287	} else {
1288	$map = try_load_header $path->load_path;
1289	}
1290
1291	$map or return;	1890	or return;
1292		1891
1293	$map->{load_original} = 1;
1294	$map->{instantiate_time} = $cf::RUNTIME;
1295	$map->last_access ($cf::RUNTIME);
1296	$map->instantiate;
1297
1298	# per-player maps become, after loading, normal maps
1299	$map->per_player (0) if $path->{user_rel};
1300	}
1301
1302	$map->path ($key);
1303	$map->{path} = $path;
1304	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1305		1893
1306	Coro::cede;	1894	$map->load_header
		1895	or return;
1307		1896
1308	if ($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;
1309	$map->reset;	1902	$map->reset;
1310	undef $guard;
1311	$map = find $path	1903	return find $path;
1312	or return;
1313	}	1904	}
1314		1905
1315	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1316	}	1907	}
1317	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1318		1912
1319	sub load {	1913	sub load {
1320	my ($self) = @_;	1914	my ($self) = @_;
1321		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1322	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1323	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1324		1922
		1923	return unless $self->valid;
1325	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1326		1925
1327	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1328		1927
1329	$self->alloc;	1928	$self->alloc;
1330	$self->load_objects ($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)
1331	or return;	1936	or return;
1332		1937
1333	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1334	if delete $self->{load_original};	1939	if delete $self->{load_original};
1335		1940
1336	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1337	utf8::encode $uniq;	1942	utf8::encode $uniq;
1338	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1339	$self->clear_unique_items;	1945	$self->clear_unique_items;
1340	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1341	}	1949	}
1342	}	1950	}
1343		1951
1344	Coro::cede;	1952	$f->resolve_delayed_derefs;
1345		1953
		1954	cf::cede_to_tick;
1346	# now do the right thing for maps	1955	# now do the right thing for maps
1347	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1348
1349	if ($self->{path}->is_style_map) {
1350	$self->{deny_save} = 1;
1351	$self->{deny_reset} = 1;
1352	} else {
1353	$self->fix_auto_apply;
1354	$self->decay_objects;
1355	$self->update_buttons;
1356	$self->set_darkness_map;
1357	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1358	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;
1359	$self->activate;	1968	$self->activate;
1360	}	1969	}
1361		1970
1362	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1363		1973
1364	$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	$neigh->load;
		2015	}
1365	}	2016	}
1366		2017
1367	sub find_sync {	2018	sub find_sync {
1368	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1369		2020
1370	cf::sync_job { cf::map::find $path, $origin }	2021	cf::sync_job { find $path, $origin }
1371	}	2022	}
1372		2023
1373	sub do_load_sync {	2024	sub do_load_sync {
1374	my ($map) = @_;	2025	my ($map) = @_;
1375		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1376	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	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1377	}	2062	}
1378		2063
1379	sub save {	2064	sub save {
1380	my ($self) = @_;	2065	my ($self) = @_;
1381		2066
1382	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1383		2068
1384	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1385		2070
1386	return unless $self->dirty;	2071	return unless $self->dirty;
1387		2072
1388	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1389	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1390		2075
1391	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1392		2077
1393	return if $self->{deny_save};	2078	return if $self->{deny_save};
1394		2079
…		…
1397	cf::async {	2082	cf::async {
1398	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1399	};	2084	};
1400		2085
1401	if ($uniq) {	2086	if ($uniq) {
1402	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1403	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1404	} else {	2089	} else {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1406	}	2091	}
1407	}	2092	}
1408		2093
1409	sub swap_out {	2094	sub swap_out {
1410	my ($self) = @_;	2095	my ($self) = @_;
1411		2096
1412	# save first because save cedes	2097	# save first because save cedes
1413	$self->save;	2098	$self->save;
1414		2099
1415	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1416		2101
1417	return if $self->players;	2102	return if $self->players;
1418	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1419	return if $self->{deny_save};	2104	return if $self->{deny_save};
1420		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1421	$self->clear;	2110	$self->clear;
1422	$self->in_memory (cf::MAP_SWAPPED);
1423	}	2111	}
1424		2112
1425	sub reset_at {	2113	sub reset_at {
1426	my ($self) = @_;	2114	my ($self) = @_;
1427		2115
1428	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1429	return 1e99 if $self->{path}{user_rel};
1430	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1431		2118
1432	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1433	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1434		2121
…		…
1439	my ($self) = @_;	2126	my ($self) = @_;
1440		2127
1441	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1442	}	2129	}
1443		2130
1444	sub unlink_save {
1445	my ($self) = @_;
1446
1447	utf8::encode (my $save = $self->{path}->save_path);
1448	aioreq_pri 3; IO::AIO::aio_unlink $save;
1449	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1450	}
1451
1452	sub rename {
1453	my ($self, $new_path) = @_;
1454
1455	$self->unlink_save;
1456
1457	delete $cf::MAP{$self->path};
1458	$self->{path} = new cf::path $new_path;
1459	$self->path ($self->{path}->as_string);
1460	$cf::MAP{$self->path} = $self;
1461
1462	$self->save;
1463	}
1464
1465	sub reset {	2131	sub reset {
1466	my ($self) = @_;	2132	my ($self) = @_;
1467		2133
1468	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1469		2135
1470	return if $self->players;	2136	return if $self->players;
1471	return if $self->{path}{user_rel};#d#
1472		2137
1473	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	}
1474		2149
1475	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1476		2151
		2152	$self->deactivate;
1477	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1478		2155
1479	$self->unlink_save;	2156	$self->unlink_save;
1480	$self->destroy;	2157	$self->destroy;
1481	}	2158	}
1482		2159
1483	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1484		2161
1485	sub nuke {	2162	sub nuke {
1486	my ($self) = @_;	2163	my ($self) = @_;
1487		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};
1488	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1489	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1490	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1491	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1492	}	2182	}
1493		2183
1494	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1495	my ($map, $ob) = @_;
1496		2185
1497	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1498	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1499	}	2192	[
1500		2193	map {
1501	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1502	}	2200	}
1503		2201
1504	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1505	my $freeze_guard = cf::freeze_mainloop;
1506		2203
1507	warn "enter emergency perl save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1508		2206
1509	cf::sync_job {	2207	=cut
1510	warn "begin emergency player save\n";
1511	$_->save for values %cf::PLAYER;
1512	warn "end emergency player save\n";
1513		2208
1514	warn "begin emergency map save\n";	2209	sub random_maps() {
1515	$_->save for values %cf::MAP;	2210	[
1516	warn "end emergency map save\n";	2211	map {
1517	};	2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
1518		2219
1519	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	]
1520	}	2236	}
1521		2237
1522	package cf;	2238	package cf;
1523		2239
1524	=back	2240	=back
1525		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
1526		2299
1527	=head3 cf::object::player	2300	=head3 cf::object::player
1528		2301
1529	=over 4	2302	=over 4
1530		2303
…		…
1544		2317
1545	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1546		2319
1547	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1548	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1549	} 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 {
1550	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1551	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1552	}	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 (@_);
1553	}	2345	}
1554		2346
1555	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1556		2348
1557	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1570		2362
1571	=item $player_object->enter_link	2363	=item $player_object->enter_link
1572		2364
1573	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}>).
1574		2366
1575	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
1576	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1577		2369
		2370	Will never block.
		2371
1578	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1579		2373
1580	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1581	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1582	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1583	to the emergency map position.	2377	fails, to the emergency map position.
1584		2378
1585	Might block.	2379	Might block.
1586		2380
1587	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($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	$LINK_MAP
		2391	}
1588		2392
1589	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1590	my ($self) = @_;	2394	my ($self) = @_;
1591		2395
1592	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1593		2397
1594	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1595		2399
1596	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1597	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1598		2402
1599	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1600	}	2404	}
1601		2405
1602	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1603	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1604		2410
1605	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1606		2412
1607	unless ($map) {	2413	unless ($map) {
1608	# restore original map position	2414	# restore original map position
…		…
1622	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1623	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1624	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1625		2431
1626	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1627		2434
1628	return unless $self->contr->active;	2435	return unless $self->contr->active;
1629	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1630	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1631	}	2440	}
1632		2441
1633	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1634	on_logout => sub {
1635	my ($pl) = @_;
1636		2443
1637	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1638	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1639	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1640	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1641	};	2448	be called at the end of this process.
1642	}
1643	},
1644	on_login => sub {
1645	my ($pl) = @_;
1646		2449
1647	# try to abort aborted map switching on player login :)
1648	# should happen only on crashes
1649	if ($pl->ob->{_link_pos}) {
1650	$pl->ob->enter_link;
1651	(async {
1652	# we need this sleep as the login has a concurrent enter_exit running
1653	# and this sleep increases chances of the player not ending up in scorn
1654	$pl->ob->reply (undef,
1655	"There was an internal problem at your last logout, "
1656	. "the server will try to bring you to your intended destination in a second.",
1657	cf::NDI_RED);
1658	Coro::Timer::sleep 1;
1659	$pl->ob->leave_link;
1660	})->prio (2);
1661	}
1662	},
1663	);
1664
1665	=item $player_object->goto ($path, $x, $y)
1666
1667	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1668		2453
1669	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1670	my ($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;
1671		2459
1672	$self->enter_link;	2460	$self->enter_link;
1673		2461
1674	(async {	2462	(async {
1675	$path = new cf::path $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
1676		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	}
		2472	# else put him there anyways for now #d#
		2473
		2474	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2475	}
		2476	}
		2477
		2478	my $map = eval {
1677	my $map = cf::map::find $path->as_string;	2479	my $map = cf::map::find $path;
		2480
		2481	if ($map) {
1678	$map = $map->customise_for ($self) if $map;	2482	$map = $map->customise_for ($self);
1679		2483	$map = $check->($map) if $check && $map;
1680	# warn "entering ", $map->path, " at ($x, $y)\n"	2484	} else {
1681	# if $map;
1682
1683	$map or $map->cluck ("oy");#d#
1684	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2485	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	}
1685		2487
		2488	$map
		2489	};
		2490
		2491	if ($@) {
		2492	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2493	LOG llevError | logBacktrace, Carp::longmess $@;
		2494	}
		2495
		2496	if ($gen == $self->{_goto_generation}) {
		2497	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2498	$self->leave_link ($map, $x, $y);
		2499	}
		2500
		2501	$done->() if $done;
1687	})->prio (1);	2502	})->prio (1);
1688	}	2503	}
1689		2504
1690	=item $player_object->enter_exit ($exit_object)	2505	=item $player_object->enter_exit ($exit_object)
1691		2506
…		…
1693		2508
1694	sub parse_random_map_params {	2509	sub parse_random_map_params {
1695	my ($spec) = @_;	2510	my ($spec) = @_;
1696		2511
1697	my $rmp = { # defaults	2512	my $rmp = { # defaults
1698	xsize => 10,	2513	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2514	ysize => (cf::rndm 15, 40),
		2515	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2516	#layout => string,
1700	};	2517	};
1701		2518
1702	for (split /\n/, $spec) {	2519	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2520	my ($k, $v) = split /\s+/, $_, 2;
1704		2521
…		…
1708	$rmp	2525	$rmp
1709	}	2526	}
1710		2527
1711	sub prepare_random_map {	2528	sub prepare_random_map {
1712	my ($exit) = @_;	2529	my ($exit) = @_;
		2530
		2531	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2532
1714	# all this does is basically replace the /! path by	2533	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2534	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2535	# that depends on the exit object
1717		2536
1718	my $rmp = parse_random_map_params $exit->msg;	2537	my $rmp = parse_random_map_params $exit->msg;
1719		2538
1720	if ($exit->map) {	2539	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2540	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2541	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2542	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2543	$rmp->{origin_y} = $exit->y;
1725	}	2544	}
1726		2545
1727	$rmp->{random_seed} ||= $exit->random_seed;	2546	$rmp->{random_seed} ||= $exit->random_seed;
1728		2547
1729	my $data = cf::to_json $rmp;	2548	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2549	my $md5 = Digest::MD5::md5_hex $data;
		2550	my $meta = "$RANDOMDIR/$md5.meta";
1731		2551
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2552	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2553	aio_write $fh, 0, (length $data), $data, 0;
		2554	undef $fh;
		2555	aio_rename "$meta~", $meta;
1734		2556
1735	$exit->slaying ("?random/$md5");	2557	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2558	$exit->msg (undef);
1737	}	2559	}
1738	}	2560	}
…		…
1740	sub cf::object::player::enter_exit {	2562	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2563	my ($self, $exit) = @_;
1742		2564
1743	return unless $self->type == cf::PLAYER;	2565	return unless $self->type == cf::PLAYER;
1744		2566
		2567	if ($exit->slaying eq "/!") {
		2568	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2569	# the problem is that $exit might not survive long enough
		2570	# so it needs to be done right now, right here
		2571	cf::sync_job { prepare_random_map $exit };
		2572	}
		2573
		2574	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2575	my $hp = $exit->stats->hp;
		2576	my $sp = $exit->stats->sp;
		2577
1745	$self->enter_link;	2578	$self->enter_link;
		2579
		2580	# if exit is damned, update players death & WoR home-position
		2581	$self->contr->savebed ($slaying, $hp, $sp)
		2582	if $exit->flag (FLAG_DAMNED);
1746		2583
1747	(async {	2584	(async {
1748	$self->deactivate_recursive; # just to be sure	2585	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2586	unless (eval {
1750	prepare_random_map $exit	2587	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2588
1756	1;	2589	1;
1757	}) {	2590	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2591	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2592	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2593	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2594	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2595
1763	warn "ERROR in enter_exit: $@";	2596	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2597	$self->leave_link;
1765	}	2598	}
1766	})->prio (1);	2599	})->prio (1);
…		…
1779		2612
1780	sub cf::client::send_drawinfo {	2613	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2614	my ($self, $text, $flags) = @_;
1782		2615
1783	utf8::encode $text;	2616	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2617	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2618	}
1786		2619
		2620	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2621
		2622	Send a drawinfo or msg packet to the client, formatting the msg for the
		2623	client if neccessary. C<$type> should be a string identifying the type of
		2624	the message, with C<log> being the default. If C<$color> is negative, suppress
		2625	the message unless the client supports the msg packet.
		2626
		2627	=cut
		2628
		2629	our %CHANNEL = (
		2630	"c/identify" => {
		2631	id => "identify",
		2632	title => "Identify",
		2633	reply => undef,
		2634	tooltip => "Items recently identified",
		2635	},
		2636	"c/examine" => {
		2637	id => "examine",
		2638	title => "Examine",
		2639	reply => undef,
		2640	tooltip => "Signs and other items you examined",
		2641	},
		2642	);
		2643
		2644	sub cf::client::send_msg {
		2645	my ($self, $channel, $msg, $color, @extra) = @_;
		2646
		2647	$msg = $self->pl->expand_cfpod ($msg);
		2648
		2649	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2650
		2651	# check predefined channels, for the benefit of C
		2652	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2653
		2654	if (ref $channel) {
		2655	# send meta info to client, if not yet sent
		2656	unless (exists $self->{channel}{$channel->{id}}) {
		2657	$self->{channel}{$channel->{id}} = $channel;
		2658	$self->ext_msg (channel_info => $channel)
		2659	if $self->can_msg;
		2660	}
		2661
		2662	$channel = $channel->{id};
		2663	}
		2664
		2665	return unless @extra || length $msg;
		2666
		2667	if ($self->can_msg) {
		2668	# default colour, mask it out
		2669	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2670	if $color & cf::NDI_DEF;
		2671
		2672	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2673	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2674	} else {
		2675	if ($color >= 0) {
		2676	# replace some tags by gcfclient-compatible ones
		2677	for ($msg) {
		2678	1 while
		2679	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2680	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2681	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2682	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2683	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2684	}
		2685
		2686	$color &= cf::NDI_COLOR_MASK;
		2687
		2688	utf8::encode $msg;
		2689
		2690	if (0 && $msg =~ /\[/) {
		2691	# COMMAND/INFO
		2692	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2693	} else {
		2694	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2695	$self->send_packet ("drawinfo $color $msg")
		2696	}
		2697	}
		2698	}
		2699	}
		2700
		2701	=item $client->ext_msg ($type, @msg)
		2702
		2703	Sends an ext event to the client.
		2704
		2705	=cut
		2706
		2707	sub cf::client::ext_msg($$@) {
		2708	my ($self, $type, @msg) = @_;
		2709
		2710	if ($self->extcmd == 2) {
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2712	} elsif ($self->extcmd == 1) { # TODO: remove
		2713	push @msg, msgtype => "event_$type";
		2714	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2715	}
		2716	}
		2717
		2718	=item $client->ext_reply ($msgid, @msg)
		2719
		2720	Sends an ext reply to the client.
		2721
		2722	=cut
		2723
		2724	sub cf::client::ext_reply($$@) {
		2725	my ($self, $id, @msg) = @_;
		2726
		2727	if ($self->extcmd == 2) {
		2728	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2729	} elsif ($self->extcmd == 1) {
		2730	#TODO: version 1, remove
		2731	unshift @msg, msgtype => "reply", msgid => $id;
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2733	}
		2734	}
1787		2735
1788	=item $success = $client->query ($flags, "text", \&cb)	2736	=item $success = $client->query ($flags, "text", \&cb)
1789		2737
1790	Queues a query to the client, calling the given callback with	2738	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2739	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1792	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2740	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1793		2741
1794	Queries can fail, so check the return code. Or don't, as queries will become	2742	Queries can fail, so check the return code. Or don't, as queries will
1795	reliable at some point in the future.	2743	become reliable at some point in the future.
1796		2744
1797	=cut	2745	=cut
1798		2746
1799	sub cf::client::query {	2747	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	2748	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	2756	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2757	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		2758
1811	$self->send_packet ($self->{query_queue}[0][0])	2759	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	2760	if @{ $self->{query_queue} } == 1;
		2761
		2762	1
1813	}	2763	}
1814		2764
1815	cf::client->attach (	2765	cf::client->attach (
		2766	on_connect => sub {
		2767	my ($ns) = @_;
		2768
		2769	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2770	},
1816	on_reply => sub {	2771	on_reply => sub {
1817	my ($ns, $msg) = @_;	2772	my ($ns, $msg) = @_;
1818		2773
1819	# this weird shuffling is so that direct followup queries	2774	# this weird shuffling is so that direct followup queries
1820	# get handled first	2775	# get handled first
1821	my $queue = delete $ns->{query_queue}	2776	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2777	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2778
1824	(shift @$queue)->[1]->($msg);	2779	(shift @$queue)->[1]->($msg);
		2780	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2781
1826	push @{ $ns->{query_queue} }, @$queue;	2782	push @{ $ns->{query_queue} }, @$queue;
1827		2783
1828	if (@{ $ns->{query_queue} } == @$queue) {	2784	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2785	if (@$queue) {
…		…
1831	} else {	2787	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2788	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	2789	}
1834	}	2790	}
1835	},	2791	},
		2792	on_exticmd => sub {
		2793	my ($ns, $buf) = @_;
		2794
		2795	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2796
		2797	if (ref $msg) {
		2798	my ($type, $reply, @payload) =
		2799	"ARRAY" eq ref $msg
		2800	? @$msg
		2801	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2802
		2803	my @reply;
		2804
		2805	if (my $cb = $EXTICMD{$type}) {
		2806	@reply = $cb->($ns, @payload);
		2807	}
		2808
		2809	$ns->ext_reply ($reply, @reply)
		2810	if $reply;
		2811
		2812	} else {
		2813	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2814	}
		2815
		2816	cf::override;
		2817	},
1836	);	2818	);
1837		2819
1838	=item $client->async (\&cb)	2820	=item $client->async (\&cb)
1839		2821
1840	Create a new coroutine, running the specified callback. The coroutine will	2822	Create a new coroutine, running the specified callback. The coroutine will
…		…
1881	our $safe = new Safe "safe";	2863	our $safe = new Safe "safe";
1882	our $safe_hole = new Safe::Hole;	2864	our $safe_hole = new Safe::Hole;
1883		2865
1884	$SIG{FPE} = 'IGNORE';	2866	$SIG{FPE} = 'IGNORE';
1885		2867
1886	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2868	$safe->permit_only (Opcode::opset qw(
		2869	:base_core :base_mem :base_orig :base_math
		2870	grepstart grepwhile mapstart mapwhile
		2871	sort time
		2872	));
1887		2873
1888	# here we export the classes and methods available to script code	2874	# here we export the classes and methods available to script code
1889		2875
1890	=pod	2876	=pod
1891		2877
1892	The following fucntions and emthods are available within a safe environment:	2878	The following functions and methods are available within a safe environment:
1893		2879
1894	cf::object contr pay_amount pay_player map	2880	cf::object
		2881	contr pay_amount pay_player map x y force_find force_add
		2882	insert remove name archname title slaying race decrease_ob_nr
		2883
1895	cf::object::player player	2884	cf::object::player
1896	cf::player peaceful	2885	player
1897	cf::map trigger	2886
		2887	cf::player
		2888	peaceful
		2889
		2890	cf::map
		2891	trigger
1898		2892
1899	=cut	2893	=cut
1900		2894
1901	for (	2895	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	2896	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2897	insert remove inv name archname title slaying race
		2898	decrease_ob_nr)],
1903	["cf::object::player" => qw(player)],	2899	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	2900	["cf::player" => qw(peaceful)],
1905	["cf::map" => qw(trigger)],	2901	["cf::map" => qw(trigger)],
1906	) {	2902	) {
1907	no strict 'refs';	2903	no strict 'refs';
…		…
1978	=back	2974	=back
1979		2975
1980	=cut	2976	=cut
1981		2977
1982	#############################################################################	2978	#############################################################################
		2979	# the server's init and main functions
1983		2980
1984	=head2 EXTENSION DATABASE SUPPORT	2981	sub load_facedata($) {
		2982	my ($path) = @_;
1985		2983
1986	Crossfire maintains a very simple database for extension use. It can	2984	# HACK to clear player env face cache, we need some signal framework
1987	currently store anything that can be serialised using Storable, which	2985	# for this (global event?)
1988	excludes objects.	2986	%ext::player_env::MUSIC_FACE_CACHE = ();
1989		2987
1990	The parameter C<$family> should best start with the name of the extension	2988	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1991	using it, it should be unique.
1992		2989
1993	=over 4	2990	warn "loading facedata from $path\n";
1994		2991
1995	=item $hashref = cf::db_get $family	2992	my $facedata;
		2993	0 < aio_load $path, $facedata
		2994	or die "$path: $!";
1996		2995
1997	Return a hashref for use by the extension C<$family>, which can be	2996	$facedata = Coro::Storable::thaw $facedata;
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000		2997
2001	=item $value = cf::db_get $family => $key	2998	$facedata->{version} == 2
		2999	or cf::cleanup "$path: version mismatch, cannot proceed.";
2002		3000
2003	Returns a single value from the database	3001	# patch in the exptable
2004		3002	$facedata->{resource}{"res/exp_table"} = {
2005	=item cf::db_put $family => $hashref	3003	type => FT_RSRC,
2006		3004	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}
2033
2034	my $pid;
2035
2036	sub db_save() {
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	3005	};
		3006	cf::cede_to_tick;
2056		3007
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}	3008	{
		3009	my $faces = $facedata->{faceinfo};
2061		3010
2062	sub db_get($;$) {	3011	while (my ($face, $info) = each %$faces) {
2063	@_ >= 2	3012	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2064	? $DB->{$_[0]}{$_[1]}	3013	cf::face::set_visibility $idx, $info->{visibility};
2065	: ($DB->{$_[0]} ||= { })	3014	cf::face::set_magicmap $idx, $info->{magicmap};
2066	}	3015	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3016	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2067		3017
2068	sub db_put($$;$) {	3018	cf::cede_to_tick;
2069	if (@_ >= 3) {
2070	$DB->{$_[0]}{$_[1]} = $_[2];
2071	} else {
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076
2077	cf::global->attach (
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	3019	}
2082	);
2083	}
2084		3020
2085	#############################################################################	3021	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	3022	next unless $info->{smooth};
		3023	my $idx = cf::face::find $face
		3024	or next;
		3025	if (my $smooth = cf::face::find $info->{smooth}) {
		3026	cf::face::set_smooth $idx, $smooth;
		3027	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3028	} else {
		3029	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3030	}
2087		3031
2088	sub cfg_load {	3032	cf::cede_to_tick;
		3033	}
		3034	}
		3035
		3036	{
		3037	my $anims = $facedata->{animinfo};
		3038
		3039	while (my ($anim, $info) = each %$anims) {
		3040	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3041	cf::cede_to_tick;
		3042	}
		3043
		3044	cf::anim::invalidate_all; # d'oh
		3045	}
		3046
		3047	{
		3048	# TODO: for gcfclient pleasure, we should give resources
		3049	# that gcfclient doesn't grok a >10000 face index.
		3050	my $res = $facedata->{resource};
		3051
		3052	my $soundconf = delete $res->{"res/sound.conf"};
		3053
		3054	while (my ($name, $info) = each %$res) {
		3055	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3056	my $data;
		3057
		3058	if ($info->{type} & 1) {
		3059	# prepend meta info
		3060
		3061	my $meta = $enc->encode ({
		3062	name => $name,
		3063	%{ $info->{meta} || {} },
		3064	});
		3065
		3066	$data = pack "(w/a*)*", $meta, $info->{data};
		3067	} else {
		3068	$data = $info->{data};
		3069	}
		3070
		3071	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3072	cf::face::set_type $idx, $info->{type};
		3073
		3074	cf::cede_to_tick;
		3075	}
		3076
		3077	if ($soundconf) {
		3078	$soundconf = $enc->decode (delete $soundconf->{data});
		3079
		3080	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3081	my $sound = $soundconf->{compat}[$_]
		3082	or next;
		3083
		3084	my $face = cf::face::find "sound/$sound->[1]";
		3085	cf::sound::set $sound->[0] => $face;
		3086	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3087	}
		3088
		3089	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3090	my $face = cf::face::find "sound/$v";
		3091	cf::sound::set $k => $face;
		3092	}
		3093	}
		3094	}
		3095
		3096	1
		3097	}
		3098
		3099	register_exticmd fx_want => sub {
		3100	my ($ns, $want) = @_;
		3101
		3102	while (my ($k, $v) = each %$want) {
		3103	$ns->fx_want ($k, $v);
		3104	}
		3105	};
		3106
		3107	sub reload_regions {
		3108	# HACK to clear player env face cache, we need some signal framework
		3109	# for this (global event?)
		3110	%ext::player_env::MUSIC_FACE_CACHE = ();
		3111
		3112	load_resource_file "$MAPDIR/regions"
		3113	or die "unable to load regions file\n";
		3114
		3115	for (cf::region::list) {
		3116	$_->{match} = qr/$_->{match}/
		3117	if exists $_->{match};
		3118	}
		3119	}
		3120
		3121	sub reload_facedata {
		3122	load_facedata "$DATADIR/facedata"
		3123	or die "unable to load facedata\n";
		3124	}
		3125
		3126	sub reload_archetypes {
		3127	load_resource_file "$DATADIR/archetypes"
		3128	or die "unable to load archetypes\n";
		3129	#d# NEED to laod twice to resolve forward references
		3130	# this really needs to be done in an extra post-pass
		3131	# (which needs to be synchronous, so solve it differently)
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	}
		3135
		3136	sub reload_treasures {
		3137	load_resource_file "$DATADIR/treasures"
		3138	or die "unable to load treasurelists\n";
		3139	}
		3140
		3141	sub reload_resources {
		3142	warn "reloading resource files...\n";
		3143
		3144	reload_regions;
		3145	reload_facedata;
		3146	#reload_archetypes;#d#
		3147	reload_archetypes;
		3148	reload_treasures;
		3149
		3150	warn "finished reloading resource files\n";
		3151	}
		3152
		3153	sub init {
		3154	reload_resources;
		3155	}
		3156
		3157	sub reload_config {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	3158	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	3159	or return;
2091		3160
2092	local $/;	3161	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	3162	*CFG = YAML::Syck::Load <$fh>;
2094		3163
…		…
2108		3177
2109	sub main {	3178	sub main {
2110	# we must not ever block the main coroutine	3179	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	3180	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3181	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3182	(async {
2113	async { Event::one_event };	3183	Event::one_event;
		3184	})->prio (Coro::PRIO_MAX);
2114	};	3185	};
2115		3186
2116	cfg_load;	3187	reload_config;
2117	db_load;	3188	db_init;
2118	load_extensions;	3189	load_extensions;
		3190
		3191	$TICK_WATCHER->start;
2119	Event::loop;	3192	Event::loop;
2120	}	3193	}
2121		3194
2122	#############################################################################	3195	#############################################################################
2123	# initialisation	3196	# initialisation and cleanup
2124		3197
		3198	# install some emergency cleanup handlers
		3199	BEGIN {
		3200	for my $signal (qw(INT HUP TERM)) {
		3201	Event->signal (
		3202	reentrant => 0,
		3203	data => WF_AUTOCANCEL,
		3204	signal => $signal,
		3205	prio => 0,
		3206	cb => sub {
		3207	cf::cleanup "SIG$signal";
		3208	},
		3209	);
		3210	}
		3211	}
		3212
		3213	sub write_runtime {
		3214	my $runtime = "$LOCALDIR/runtime";
		3215
		3216	# first touch the runtime file to show we are still running:
		3217	# the fsync below can take a very very long time.
		3218
		3219	IO::AIO::aio_utime $runtime, undef, undef;
		3220
		3221	my $guard = cf::lock_acquire "write_runtime";
		3222
		3223	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3224	or return;
		3225
		3226	my $value = $cf::RUNTIME + 90 + 10;
		3227	# 10 is the runtime save interval, for a monotonic clock
		3228	# 60 allows for the watchdog to kill the server.
		3229
		3230	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3231	and return;
		3232
		3233	# always fsync - this file is important
		3234	aio_fsync $fh
		3235	and return;
		3236
		3237	# touch it again to show we are up-to-date
		3238	aio_utime $fh, undef, undef;
		3239
		3240	close $fh
		3241	or return;
		3242
		3243	aio_rename "$runtime~", $runtime
		3244	and return;
		3245
		3246	warn "runtime file written.\n";
		3247
		3248	1
		3249	}
		3250
		3251	sub emergency_save() {
		3252	my $freeze_guard = cf::freeze_mainloop;
		3253
		3254	warn "enter emergency perl save\n";
		3255
		3256	cf::sync_job {
		3257	# use a peculiar iteration method to avoid tripping on perl
		3258	# refcount bugs in for. also avoids problems with players
		3259	# and maps saved/destroyed asynchronously.
		3260	warn "begin emergency player save\n";
		3261	for my $login (keys %cf::PLAYER) {
		3262	my $pl = $cf::PLAYER{$login} or next;
		3263	$pl->valid or next;
		3264	$pl->save;
		3265	}
		3266	warn "end emergency player save\n";
		3267
		3268	warn "begin emergency map save\n";
		3269	for my $path (keys %cf::MAP) {
		3270	my $map = $cf::MAP{$path} or next;
		3271	$map->valid or next;
		3272	$map->save;
		3273	}
		3274	warn "end emergency map save\n";
		3275
		3276	warn "begin emergency database checkpoint\n";
		3277	BDB::db_env_txn_checkpoint $DB_ENV;
		3278	warn "end emergency database checkpoint\n";
		3279	};
		3280
		3281	warn "leave emergency perl save\n";
		3282	}
		3283
		3284	sub post_cleanup {
		3285	my ($make_core) = @_;
		3286
		3287	warn Carp::longmess "post_cleanup backtrace"
		3288	if $make_core;
		3289	}
		3290
2125	sub reload() {	3291	sub do_reload_perl() {
2126	# can/must only be called in main	3292	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	3293	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	3294	warn "can only reload from main coroutine";
2129	return;	3295	return;
2130	}	3296	}
2131		3297
2132	warn "reloading...";	3298	warn "reloading...";
2133		3299
2134	my $guard = freeze_mainloop;	3300	warn "entering sync_job";
		3301
		3302	cf::sync_job {
		3303	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	3304	cf::emergency_save;
		3305	cf::write_runtime; # external watchdog should not bark
2136		3306
2137	eval {	3307	warn "syncing database to disk";
		3308	BDB::db_env_txn_checkpoint $DB_ENV;
		3309
2138	# if anything goes wrong in here, we should simply crash as we already saved	3310	# if anything goes wrong in here, we should simply crash as we already saved
2139		3311
2140	# cancel all watchers	3312	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	3313	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3314	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	3315	}
2144		3316
		3317	warn "flushing outstanding aio requests";
		3318	for (;;) {
		3319	BDB::flush;
		3320	IO::AIO::flush;
		3321	Coro::cede;
		3322	last unless IO::AIO::nreqs || BDB::nreqs;
		3323	warn "iterate...";
		3324	}
		3325
		3326	++$RELOAD;
		3327
2145	# cancel all extension coros	3328	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	3329	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	3330	%EXT_CORO = ();
2148		3331
2149	# unload all extensions	3332	warn "removing commands";
2150	for (@exts) {	3333	%COMMAND = ();
		3334
		3335	warn "removing ext/exti commands";
		3336	%EXTCMD = ();
		3337	%EXTICMD = ();
		3338
		3339	warn "unloading/nuking all extensions";
		3340	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	3341	warn "... unloading $pkg";
2152	unload_extension $_;	3342
		3343	if (my $cb = $pkg->can ("unload")) {
		3344	eval {
		3345	$cb->($pkg);
		3346	1
		3347	} or warn "$pkg unloaded, but with errors: $@";
2153	}	3348	}
2154		3349
		3350	warn "... nuking $pkg";
		3351	Symbol::delete_package $pkg;
		3352	}
		3353
2155	# unload all modules loaded from $LIBDIR	3354	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	3355	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3356	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		3357
2159	warn "removing <$k>";	3358	warn "... unloading $k";
2160	delete $INC{$k};	3359	delete $INC{$k};
2161		3360
2162	$k =~ s/\.pm$//;	3361	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	3362	$k =~ s/\//::/g;
2164		3363
…		…
2167	}	3366	}
2168		3367
2169	Symbol::delete_package $k;	3368	Symbol::delete_package $k;
2170	}	3369	}
2171		3370
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	3371	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3372	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3373	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		3374
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	3375	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	3376	delete $INC{"cf.pm"};
		3377	delete $INC{"cf/pod.pm"};
2185		3378
2186	# don't, removes xs symbols, too,	3379	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3380	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3381	#Symbol::delete_package __PACKAGE__;
2189		3382
2190	# reload cf.pm	3383	warn "unload completed, starting to reload now";
		3384
2191	warn "reloading cf.pm";	3385	warn "reloading cf.pm";
2192	require cf;	3386	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3387	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		3388
2195	# load config and database again	3389	warn "loading config and database again";
2196	cf::cfg_load;	3390	cf::reload_config;
2197	cf::db_load;
2198		3391
2199	# load extensions
2200	warn "load extensions";	3392	warn "loading extensions";
2201	cf::load_extensions;	3393	cf::load_extensions;
2202		3394
2203	# reattach attachments to objects	3395	warn "reattaching attachments to objects/players";
2204	warn "reattach";	3396	_global_reattach; # objects, sockets
2205	_global_reattach;	3397	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	3398	reattach $_ for values %MAP;
2207	};	3399	warn "reattaching attachments to players";
		3400	reattach $_ for values %PLAYER;
2208		3401
2209	if ($@) {	3402	warn "leaving sync_job";
		3403
		3404	1
		3405	} or do {
2210	warn $@;	3406	warn $@;
2211	warn "error while reloading, exiting.";	3407	warn "error while reloading, exiting.";
2212	exit 1;	3408	exit 1;
2213	}	3409	};
2214		3410
2215	warn "reloaded successfully";	3411	warn "reloaded";
2216	};	3412	};
2217		3413
2218	#############################################################################	3414	our $RELOAD_WATCHER; # used only during reload
2219		3415
2220	unless ($LINK_MAP) {	3416	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	3417	# doing reload synchronously and two reloads happen back-to-back,
		3418	# coro crashes during coro_state_free->destroy here.
2222		3419
2223	$LINK_MAP->width (41);	3420	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	3421	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	3422	after => 0,
		3423	data => WF_AUTOCANCEL,
2233	cb => sub {	3424	cb => sub {
2234	$_[0]->w->cancel;	3425	do_reload_perl;
2235		3426	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	3427	},
2254		3428	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3429	}
2260
2261	register "<global>", __PACKAGE__;
2262		3430
2263	register_command "reload" => sub {	3431	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3432	my ($who, $arg) = @_;
2265		3433
2266	if ($who->flag (FLAG_WIZ)) {	3434	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3435	$who->message ("reloading server.");
		3436	async { reload_perl };
2270	}	3437	}
2271	};	3438	};
2272		3439
2273	unshift @INC, $LIBDIR;	3440	unshift @INC, $LIBDIR;
		3441
		3442	my $bug_warning = 0;
		3443
		3444	our @WAIT_FOR_TICK;
		3445	our @WAIT_FOR_TICK_BEGIN;
		3446
		3447	sub wait_for_tick {
		3448	return unless $TICK_WATCHER->is_active;
		3449	return if $Coro::current == $Coro::main;
		3450
		3451	my $signal = new Coro::Signal;
		3452	push @WAIT_FOR_TICK, $signal;
		3453	$signal->wait;
		3454	}
		3455
		3456	sub wait_for_tick_begin {
		3457	return unless $TICK_WATCHER->is_active;
		3458	return if $Coro::current == $Coro::main;
		3459
		3460	my $signal = new Coro::Signal;
		3461	push @WAIT_FOR_TICK_BEGIN, $signal;
		3462	$signal->wait;
		3463	}
		3464
		3465	our $stat_fh;
		3466	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2274		3467
2275	$TICK_WATCHER = Event->timer (	3468	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	3469	reentrant => 0,
		3470	parked => 1,
2277	prio => 0,	3471	prio => 0,
2278	at => $NEXT_TICK || $TICK,	3472	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	3473	data => WF_AUTOCANCEL,
2280	cb => sub {	3474	cb => sub {
		3475	if ($Coro::current != $Coro::main) {
		3476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3477	unless ++$bug_warning > 10;
		3478	return;
		3479	}
		3480
		3481	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3482
		3483	$NOW = $tick_start = Event::time;
		3484
2281	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2282	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2284		3489
		3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	# my $AFTER = Event::time;
		3499	# warn $AFTER - $NOW;#d#
		3500
		3501	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3502	$sig->send;
		3503	}
		3504	while (my $sig = shift @WAIT_FOR_TICK) {
		3505	$sig->send;
		3506	}
		3507
		3508	$NOW = Event::time;
		3509
2285	# if we are delayed by four ticks or more, skip them all	3510	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3511	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		3512
2288	$TICK_WATCHER->at ($NEXT_TICK);	3513	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	3514	$TICK_WATCHER->start;
		3515
		3516	$LOAD = ($NOW - $tick_start) / $TICK;
		3517	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3518
		3519	_post_tick;
		3520
		3521	# gather some statistics#d#
		3522	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3523	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2290	},	3524	},
2291	);	3525	);
2292		3526
		3527	{
		3528	BDB::min_parallel 8;
2293	IO::AIO::max_poll_time $TICK * 0.2;	3529	BDB::max_poll_time $TICK * 0.1;
2294		3530	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	3531	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	3532	fd => BDB::poll_fileno,
2297	poll => 'r',	3533	poll => 'r',
2298	prio => 5,	3534	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
		3536	cb => \&BDB::poll_cb,
		3537	);
		3538
		3539	BDB::set_sync_prepare {
		3540	my $status;
		3541	my $current = $Coro::current;
		3542	(
		3543	sub {
		3544	$status = $!;
		3545	$current->ready; undef $current;
		3546	},
		3547	sub {
		3548	Coro::schedule while defined $current;
		3549	$! = $status;
		3550	},
		3551	)
		3552	};
		3553
		3554	unless ($DB_ENV) {
		3555	$DB_ENV = BDB::db_env_create;
		3556
		3557	cf::sync_job {
		3558	eval {
		3559	BDB::db_env_open
		3560	$DB_ENV,
		3561	$BDBDIR,
		3562	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3563	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3564	0666;
		3565
		3566	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3567
		3568	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3569	| BDB::LOG_AUTOREMOVE, 1);
		3570	$DB_ENV->set_lk_detect;
		3571	};
		3572
		3573	cf::cleanup "db_env_open(db): $@" if $@;
		3574	};
		3575	}
		3576
		3577	$BDB_CHECKPOINT_WATCHER = Event->timer (
2305	after => 0,	3578	after => 11,
2306	interval => 10,	3579	interval => 60,
		3580	hard => 1,
		3581	prio => 0,
		3582	data => WF_AUTOCANCEL,
2307	cb => sub {	3583	cb => sub {
2308	(Coro::unblock_sub {	3584	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2309	write_runtime	3585	},
2310	or warn "ERROR: unable to write runtime file: $!";	3586	);
		3587	$BDB_TRICKLE_WATCHER = Event->timer (
		3588	after => 5,
		3589	interval => 10,
		3590	hard => 1,
		3591	prio => 0,
		3592	data => WF_AUTOCANCEL,
		3593	cb => sub {
		3594	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3595	},
		3596	);
		3597	}
		3598
		3599	{
		3600	IO::AIO::min_parallel 8;
		3601
		3602	undef $Coro::AIO::WATCHER;
		3603	IO::AIO::max_poll_time $TICK * 0.1;
		3604	$AIO_POLL_WATCHER = Event->io (
		3605	reentrant => 0,
		3606	data => WF_AUTOCANCEL,
		3607	fd => IO::AIO::poll_fileno,
		3608	poll => 'r',
		3609	prio => 6,
		3610	cb => \&IO::AIO::poll_cb,
		3611	);
		3612	}
		3613
		3614	my $_log_backtrace;
		3615
		3616	sub _log_backtrace {
		3617	my ($msg, @addr) = @_;
		3618
		3619	$msg =~ s/\n//;
		3620
		3621	# limit the # of concurrent backtraces
		3622	if ($_log_backtrace < 2) {
		3623	++$_log_backtrace;
		3624	async {
		3625	my @bt = fork_call {
		3626	@addr = map { sprintf "%x", $_ } @addr;
		3627	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3628	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3629	or die "addr2line: $!";
		3630
		3631	my @funcs;
		3632	my @res = <$fh>;
		3633	chomp for @res;
		3634	while (@res) {
		3635	my ($func, $line) = splice @res, 0, 2, ();
		3636	push @funcs, "[$func] $line";
		3637	}
		3638
		3639	@funcs
		3640	};
		3641
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] $_\n" for @bt;
		3644	--$_log_backtrace;
2311	})->();	3645	};
		3646	} else {
		3647	LOG llevInfo, "[ABT] $msg\n";
		3648	LOG llevInfo, "[ABT] [suppressed]\n";
2312	},	3649	}
2313	);	3650	}
		3651
		3652	# load additional modules
		3653	use cf::pod;
2314		3654
2315	END { cf::emergency_save }	3655	END { cf::emergency_save }
2316		3656
2317	1	3657	1
2318		3658

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