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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.372 by root, Sat Sep 15 13:25:33 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$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
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
47		89
48	our %CFG;	90	our %CFG;
49		91
50	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	93	our $RUNTIME;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		98
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
61		105
62	binmode STDOUT;	106	binmode STDOUT;
63	binmode STDERR;	107	binmode STDERR;
64		108
65	# read virtual server time, if available	109	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
70	}	114	}
71		115
72	mkdir cf::localdir;	116	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		118
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
81		122
82	#############################################################################	123	#############################################################################
83		124
84	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
85		126
…		…
92	=item $cf::RUNTIME	133	=item $cf::RUNTIME
93		134
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	136	every server tick.
96		137
97	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		141
99	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
101		146
102	=item $cf::NOW	147	=item $cf::NOW
103		148
104	The time of the last (current) server tick.	149	The time of the last (current) server tick.
105		150
106	=item $cf::TICK	151	=item $cf::TICK
107		152
108	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
109		164
110	=item %cf::CFG	165	=item %cf::CFG
111		166
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	168	from wherever your confdir points to.
114		169
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		171
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
121		181
122	=back	182	=back
123		183
124	=cut	184	=cut
125		185
126	BEGIN {	186	BEGIN {
127	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	188	my $msg = join "", @_;
129	utf8::encode $msg;
130		189
131	$msg .= "\n"	190	$msg .= "\n"
132	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
133		194
134	LOG llevError, $msg;	195	LOG llevError, $msg;
135	};	196	};
136	}	197	}
137		198
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		206
145	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	208	# within the Safe compartment.
147	for my $pkg (qw(	209	for my $pkg (qw(
148	cf::global cf::attachable	210	cf::global cf::attachable
…		…
157		219
158	$Event::DIED = sub {	220	$Event::DIED = sub {
159	warn "error in event callback: @_";	221	warn "error in event callback: @_";
160	};	222	};
161		223
162	my %ext_pkg;	224	#############################################################################
163	my @exts;
164	my @hook;
165		225
166	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
167		227
168	=over 4	228	=over 4
169		229
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	249	$d
190	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
191	}	251	}
192		252
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
196		254
197	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
198		256
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
207		258
208	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
209		260
210	=cut	261	=cut
211		262
212	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
214	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
215	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
216		267
217	=item cf::lock_wait $string	268	=item cf::lock_wait $string
218		269
219	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
220		271
…		…
223	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
226	returned.	277	returned.
227		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
228	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
230		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
231	=cut	289	=cut
232		290
233	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
234		293
235	sub lock_wait($) {	294	sub lock_wait($) {
236	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
237		301
238	# wait for lock, if any	302	# wait for lock, if any
239	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	305	Coro::schedule;
…		…
247		311
248	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
249	lock_wait $key;	313	lock_wait $key;
250		314
251	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
252		317
253	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
256	}	322	}
257	}	323	}
258		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
259	sub freeze_mainloop {	331	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
261		333
262	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
263	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
264	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
265	}	395	}
266		396
267	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
268		398
269	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		404
275	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
276		406
277	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
278		408
279	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
282		413
283	If it must be done, put the blocking parts into C<sync_job>. This will run	414	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	415	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	416	server will be frozen during this time, so the block should either finish
286	fast or be very important.	417	fast or be very important.
…		…
289		420
290	sub sync_job(&) {	421	sub sync_job(&) {
291	my ($job) = @_;	422	my ($job) = @_;
292		423
293	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
294	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
296		429
297	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
309		442
310	while ($busy) {	443	while ($busy) {
311	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
312	}	445	}
313		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
314	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
315	} else {	455	} else {
316	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
317		457
318	$job->()	458	$job->()
319	}	459	}
320	}	460	}
321		461
322	=item $coro = cf::async_ext { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
323		463
324	Like async, but this coro is automcatially being canceled when the	464	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	465	extension calling this is being unloaded.
326		466
327	=cut	467	=cut
328		468
329	sub async_ext(&) {	469	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
338		478
339	$coro	479	$coro
340	}	480	}
341		481
342	sub write_runtime {	482	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		483
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
346	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
347		488
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		490
352	aio_fsync $fh	491	sub fork_call(&@) {
353	and return;	492	my ($cb, @args) = @_;
354		493
355	close $fh	494	# we seemingly have to make a local copy of the whole thing,
356	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
357		497
358	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
359	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
360		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
361	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	642	}
363		643
364	=back	644	=back
365		645
366	=cut	646	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		647
490	#############################################################################	648	#############################################################################
491		649
492	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
493		651
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
497		655
498	In the following description, CLASS can be any of C<global>, C<object>	656	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	658	Crossfire TRT).
501		659
502	=over 4	660	=over 4
503		661
504	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
505		663
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	778	our @CB_MAP = ();
621		779
622	my %attachment;	780	my %attachment;
623		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
624	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
626		790
627	use sort 'stable';	791	use sort 'stable';
628		792
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
663		827
664	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		832
669	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	834	my $pkg = shift @arg;
671		835
672	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
702	}	866	}
703		867
704	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
705	} else {	869	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	871	}
708		872
709	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
710	}	874	}
711		875
…		…
713	if (ref $_[0]) {	877	if (ref $_[0]) {
714	_object_attach @_;	878	_object_attach @_;
715	} else {	879	} else {
716	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
717	}	881	}
		882	_recalc_want;
718	};	883	};
719		884
720	# all those should be optimised	885	# all those should be optimised
721	sub cf::attachable::detach {	886	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
726	reattach ($obj);	891	reattach ($obj);
727	} else {	892	} else {
728	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
729	}	894	}
		895	_recalc_want;
730	};	896	};
731		897
732	sub cf::attachable::attached {	898	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
734		900
…		…
749	";	915	";
750	die if $@;	916	die if $@;
751	}	917	}
752		918
753	our $override;	919	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		921
756	sub override {	922	sub override {
757	$override = 1;	923	$override = 1;
758	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
759	}	925	}
760		926
761	sub do_invoke {	927	sub do_invoke {
762	my $event = shift;	928	my $event = shift;
763	my $callbacks = shift;	929	my $callbacks = shift;
764		930
765	@invoke_results = ();	931	@INVOKE_RESULTS = ();
766		932
767	local $override;	933	local $override;
768		934
769	for (@$callbacks) {	935	for (@$callbacks) {
770	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
787		953
788	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
789		955
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	957	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		959
794	=back	960	=back
795		961
796	=cut	962	=cut
797		963
798	#############################################################################	964	#############################################################################
799	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
800		977
801	sub reattach {	978	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		983
805	my $registry = $obj->registry;	984	my $registry = $obj->registry;
806		985
807	@$registry = ();	986	@$registry = ();
808		987
…		…
847	);	1026	);
848		1027
849	sub object_freezer_save {	1028	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
851		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
852	sync_job {	1033	sync_job {
853	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
856		1038
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1043	close $fh;
862		1044
863	if (@$objs) {	1045	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1046	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1051	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
871	}	1053	}
872	} else {	1054	} else {
873	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
879	}	1061	}
880	} else {	1062	} else {
881	aio_unlink $filename;	1063	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
883	}	1065	}
884	}	1066	};
		1067
		1068	undef $guard;
885	}	1069	}
886		1070
887	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
889		1073
…		…
894		1078
895	sub object_thawer_load {	1079	sub object_thawer_load {
896	my ($filename) = @_;	1080	my ($filename) = @_;
897		1081
898	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
899		1085
900	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
901	or return;	1087	or return;
902		1088
903	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
905	or return;	1091	or return;
		1092
		1093	undef $guard;
906	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
907	}	1095	}
908		1096
		1097	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
911	return ($data, $av);	1101	($data, $av)
912	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
913		1109
914	#############################################################################	1110	#############################################################################
915	# command handling &c	1111	# command handling &c
916		1112
917	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1127	}
932		1128
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1130
935	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
936		1136
937	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
938	called.	1138	called.
939		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
940	=cut	1151	=cut
941		1152
942	sub register_extcmd {	1153	sub register_extcmd {
943	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
944		1155
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
949	}	1163	}
950		1164
951	cf::player->attach (	1165	cf::player->attach (
952	on_command => sub {	1166	on_command => sub {
953	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1176	cf::override;
963	},	1177	},
964	on_extcmd => sub {	1178	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
966		1180
967	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1182
969	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
975	} else {	1198	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1200	}
978		1201
979	cf::override;	1202	cf::override;
980	},	1203	},
981	);	1204	);
982		1205
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
1060	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1211	next unless -r $path;
1062	eval {	1212
1063	load_extension $ext;	1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
1064	1	1270	}
1065	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
1066	}	1276	};
1067	}	1277	}
1068		1278
1069	#############################################################################	1279	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1280
1072	*cf::mapsupport::on_clean = sub {	1281	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1282
1085	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1086		1284
1087	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1088		1286
…		…
1094		1292
1095	=head3 cf::player	1293	=head3 cf::player
1096		1294
1097	=over 4	1295	=over 4
1098		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
1099	=item cf::player::find $login	1311	=item cf::player::find $login
1100		1312
1101	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1102		1314
1103	=cut	1315	=cut
1104		1316
1105	sub playerdir($) {	1317	sub playerdir($) {
1106	cf::localdir	1318	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1320	}
1112		1321
1113	sub path($) {	1322	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1324
1116	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
1117	}	1326	}
1118		1327
1119	sub find_active($) {	1328	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
1124		1333
1125	sub exists($) {	1334	sub exists($) {
1126	my ($login) = @_;	1335	my ($login) = @_;
1127		1336
1128	$cf::PLAYER{$login}	1337	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1338	or cf::sync_job { !aio_stat path $login }
1130	}	1339	}
1131		1340
1132	sub find($) {	1341	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1342	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1343	my $login = $_[0];
1135		1344
1136	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
1137		1346
1138	$cf::PLAYER{$_[0]} || do {	1347	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1356	or return;
		1357
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1142	}	1363	}
1143	}	1364	}
1144	}	1365	}
1145		1366
…		…
1155		1376
1156	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1158		1379
1159	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1160	Coro::cede;	1381	cf::cede_to_tick;
1161	}	1382	}
1162		1383
1163	sub new($) {	1384	sub new($) {
1164	my ($login) = @_;	1385	my ($login) = @_;
1165		1386
…		…
1171	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1172		1393
1173	$self	1394	$self
1174	}	1395	}
1175		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
1176	=item $pl->quit_character	1407	=item $pl->quit_character
1177		1408
1178	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1180		1411
1181	=cut	1412	=cut
1182		1413
1183	sub quit_character {	1414	sub quit_character {
1184	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1185		1418
1186	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1187	$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
1188		1421
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1198	$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
1199	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
1200	}	1453	}
1201		1454
1202	=item cf::player::list_logins	1455	=item cf::player::list_logins
1203		1456
1204	Returns am arrayref of all valid playernames in the system, can take a	1457	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1206		1459
1207	=cut	1460	=cut
1208		1461
1209	sub list_logins {	1462	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1464	or return [];
1212		1465
1213	my @logins;	1466	my @logins;
1214		1467
1215	for my $login (@$dirs) {	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") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1219		1477
1220	utf8::decode $login;	1478	utf8::decode $login;
1221	push @logins, $login;	1479	push @logins, $login;
1222	}	1480	}
1223		1481
1224	\@logins	1482	\@logins
1225	}	1483	}
1226		1484
1227	=item $player->maps	1485	=item $player->maps
1228		1486
1229	Returns an arrayref of cf::path's of all maps that are private for this	1487	Returns an arrayref of map paths that are private for this
1230	player. May block.	1488	player. May block.
1231		1489
1232	=cut	1490	=cut
1233		1491
1234	sub maps($) {	1492	sub maps($) {
1235	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1496
1237	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1238	or return;	1498	or return;
1239		1499
1240	my @paths;	1500	my @paths;
1241		1501
1242	for (@$files) {	1502	for (@$files) {
1243	utf8::decode $_;	1503	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1505	next unless /^$PATH_SEP/o;
1246		1506
1247	s/$PATH_SEP/\//g;	1507	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1508	}
1250		1509
1251	\@paths	1510	\@paths
1252	}	1511	}
1253		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
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1255		1565
1256	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1257		1567
1258	=cut	1568	=cut
1259		1569
1260	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1262		1572
1263	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1574	}
1267		1575
1268	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		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	}
1269		1616
1270	=back	1617	=back
1271
1272		1618
1273	=head3 cf::map	1619	=head3 cf::map
1274		1620
1275	=over 4	1621	=over 4
1276		1622
…		…
1279	package cf::map;	1625	package cf::map;
1280		1626
1281	use Fcntl;	1627	use Fcntl;
1282	use Coro::AIO;	1628	use Coro::AIO;
1283		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1284	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1286		1636
1287	sub generate_random_map {	1637	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1640	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$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},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(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"
1304	}	1780	}
1305		1781
1306	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1307	# all maps in C++...	1783	# all maps in C++...
1308	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1310		1786
1311	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1313	}	1789	}
1314		1790
		1791	sub decay_objects {
		1792	my ($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
1315	sub try_load_header($) {	1807	sub load_header_from($) {
1316	my ($path) = @_;	1808	my ($self, $path) = @_;
1317		1809
1318	utf8::encode $path;	1810	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1320	or return;	1812	or return;
1321		1813
1322	my $map = cf::map::new	1814	$self->_load_header ($f)
1323	or return;	1815	or return;
1324		1816
1325	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1327		1819
1328	$map->load_header ($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
1329	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1330		1866
1331	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1332		1869
1333	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1334	}	1874	}
1335		1875
1336	sub find;	1876	sub find;
1337	sub find {	1877	sub find {
1338	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1339		1879
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1346		1884
1347	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1348	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
1349		1888
1350	# do it the slow way	1889	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1890	or return;
1369		1891
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1382		1893
1383	Coro::cede;	1894	$map->load_header
		1895	or return;
1384		1896
1385	if ($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;
1386	$map->reset;	1902	$map->reset;
1387	undef $guard;
1388	$map = find $path	1903	return find $path;
1389	or return;
1390	}	1904	}
1391		1905
1392	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1393	}	1907	}
1394	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1395		1912
1396	sub load {	1913	sub load {
1397	my ($self) = @_;	1914	my ($self) = @_;
1398		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1399	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1401		1922
		1923	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		1925
1404	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1405		1927
1406	$self->alloc;	1928	$self->alloc;
1407	$self->load_objects ($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)
1408	or return;	1936	or return;
1409		1937
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1939	if delete $self->{load_original};
1412		1940
1413	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1942	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	1945	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1418	}	1949	}
1419	}	1950	}
1420		1951
1421	Coro::cede;	1952	$f->resolve_delayed_derefs;
1422		1953
		1954	cf::cede_to_tick;
1423	# now do the right thing for maps	1955	# now do the right thing for maps
1424	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	1968	$self->activate;
1437	}	1969	}
1438		1970
1439	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1440		1973
1441	$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	$self
1442	}	1990	}
1443		1991
1444	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	1993	sub load_neighbours {
1446	my ($map) = @_;	1994	my ($map) = @_;
1447		1995
1448	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1449		1997
1450	for (0 .. 3) {	1998	for (0 .. 3) {
1451	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1452	or next;	2000	or next;
1453	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1454	or next;	2002	or next;
1455	$neigh->load;	2003	$neigh->load;
1456		2004
		2005	push @neigh,
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}	2008	}
1460		2009
1461	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1462	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1463	or next;	2013	or next;
1464	$neigh->load;	2014	$neigh->load;
1465	}	2015	}
1466	}	2016	}
1467		2017
…		…
1472	}	2022	}
1473		2023
1474	sub do_load_sync {	2024	sub do_load_sync {
1475	my ($map) = @_;	2025	my ($map) = @_;
1476		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1477	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1478	}	2031	}
1479		2032
1480	our %MAP_PREFETCH;	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
1481	our $MAP_PREFETCHER = Coro::async {	2047	$MAP_PREFETCHER ||= cf::async {
1482	while () {
1483	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1485	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1486	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2055	}
1492	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1493	}	2058	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2059	$MAP_PREFETCHER->prio (6);
1508		2060
1509	()	2061	()
1510	}	2062	}
1511		2063
1512	sub save {	2064	sub save {
1513	my ($self) = @_;	2065	my ($self) = @_;
1514		2066
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2068
1517	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1518		2070
1519	return unless $self->dirty;	2071	return unless $self->dirty;
1520		2072
1521	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1523		2075
1524	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1525		2077
1526	return if $self->{deny_save};	2078	return if $self->{deny_save};
1527		2079
…		…
1530	cf::async {	2082	cf::async {
1531	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1532	};	2084	};
1533		2085
1534	if ($uniq) {	2086	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	2089	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}	2091	}
1540	}	2092	}
1541		2093
1542	sub swap_out {	2094	sub swap_out {
1543	my ($self) = @_;	2095	my ($self) = @_;
1544		2096
1545	# save first because save cedes	2097	# save first because save cedes
1546	$self->save;	2098	$self->save;
1547		2099
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2101
1550	return if $self->players;	2102	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};	2104	return if $self->{deny_save};
1553		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2110	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2111	}
1557		2112
1558	sub reset_at {	2113	sub reset_at {
1559	my ($self) = @_;	2114	my ($self) = @_;
1560		2115
1561	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1564		2118
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2121
…		…
1572	my ($self) = @_;	2126	my ($self) = @_;
1573		2127
1574	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1575	}	2129	}
1576		2130
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2131	sub reset {
1599	my ($self) = @_;	2132	my ($self) = @_;
1600		2133
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2135
1603	return if $self->players;	2136	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2137
1606	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	}
1607		2149
1608	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1609		2151
		2152	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1611		2155
1612	$self->unlink_save;	2156	$self->unlink_save;
1613	$self->destroy;	2157	$self->destroy;
1614	}	2158	}
1615		2159
1616	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1617		2161
1618	sub nuke {	2162	sub nuke {
1619	my ($self) = @_;	2163	my ($self) = @_;
1620		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};
1621	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1624	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1625	}	2182	}
1626		2183
1627	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2185
1630	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1632	}	2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
1633		2201
1634	$map	2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		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	]
1635	}	2236	}
1636		2237
1637	package cf;	2238	package cf;
1638		2239
1639	=back	2240	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1658	}	2259	}
1659		2260
1660	sub inv_recursive {	2261	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	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	}
1662	}	2294	}
1663		2295
1664	package cf;	2296	package cf;
1665		2297
1666	=back	2298	=back
…		…
1685		2317
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2319
1688	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1690	} 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 {
1691	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1693	}	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 (@_);
1694	}	2345	}
1695		2346
1696	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1697		2348
1698	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1711		2362
1712	=item $player_object->enter_link	2363	=item $player_object->enter_link
1713		2364
1714	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}>).
1715		2366
1716	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
1717	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1718		2369
		2370	Will never block.
		2371
1719	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1720		2373
1721	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2377	fails, to the emergency map position.
1725		2378
1726	Might block.	2379	Might block.
1727		2380
1728	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($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	$LINK_MAP
		2391	}
1729		2392
1730	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2394	my ($self) = @_;
1732		2395
1733	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1734		2397
1735	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2399
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1739		2402
1740	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2404	}
1742		2405
1743	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1745		2410
1746	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1747		2412
1748	unless ($map) {	2413	unless ($map) {
1749	# restore original map position	2414	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1766		2431
1767	$map->load;	2432	$map->load;
1768	$map->load_diag;	2433	$map->load_neighbours;
1769		2434
1770	return unless $self->contr->active;	2435	return unless $self->contr->active;
1771	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1773	}	2440	}
1774		2441
1775	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2443
1779	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1783	};	2448	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2449
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1810		2453
1811	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2456
1814	$path = new cf::path $path;	2457	# do generation counting so two concurrent goto's will be executed in-order
1815	$path ne "/" or Carp::cluck ("oy");#d#	2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2459
1817	$self->enter_link;	2460	$self->enter_link;
1818		2461
1819	(async {	2462	(async {
1820	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1822		2487	$map = $check->($map) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1827		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1829	})->prio (1);	2506	})->prio (1);
1830	}	2507	}
1831		2508
1832	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1833		2510
…		…
1835		2512
1836	sub parse_random_map_params {	2513	sub parse_random_map_params {
1837	my ($spec) = @_;	2514	my ($spec) = @_;
1838		2515
1839	my $rmp = { # defaults	2516	my $rmp = { # defaults
1840	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1842	};	2521	};
1843		2522
1844	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1846		2525
…		…
1850	$rmp	2529	$rmp
1851	}	2530	}
1852		2531
1853	sub prepare_random_map {	2532	sub prepare_random_map {
1854	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1855		2536
1856	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1857	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1858	# that depends on the exit object	2539	# that depends on the exit object
1859		2540
1860	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1861		2542
1862	if ($exit->map) {	2543	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1867	}	2548	}
1868		2549
1869	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1870		2551
1871	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1872	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1873		2555
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1876		2560
1877	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2562	$exit->msg (undef);
1879	}	2563	}
1880	}	2564	}
…		…
1882	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1884		2568
1885	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1886		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1887	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
1888		2587
1889	(async {	2588	(async {
1890	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1891	unless (eval {	2590	unless (eval {
1892	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1893	if $exit->slaying eq "/!";
1894
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1897		2592
1898	1;	2593	1;
1899	}) {	2594	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1901	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2597	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2599
1905	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1906	$self->leave_link;	2601	$self->leave_link;
1907	}	2602	}
1908	})->prio (1);	2603	})->prio (1);
…		…
1921		2616
1922	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1924		2619
1925	utf8::encode $text;	2620	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2622	}
1928		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1929		2739
1930	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1931		2741
1932	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		2745
1936	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	2747	become reliable at some point in the future.
1938		2748
1939	=cut	2749	=cut
1940		2750
1941	sub cf::client::query {	2751	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	2760	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		2762
1953	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1955	}	2767	}
1956		2768
1957	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1958	on_reply => sub {	2775	on_reply => sub {
1959	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1960		2777
1961	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1962	# get handled first	2779	# get handled first
1963	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		2782
1966	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		2785
1968	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1969		2787
1970	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	2789	if (@$queue) {
…		…
1973	} else {	2791	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	2793	}
1976	}	2794	}
1977	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
1978	);	2822	);
1979		2823
1980	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
1981		2825
1982	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2023	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2025		2869
2026	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2027		2871
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2029		2877
2030	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2031		2879
2032	=pod	2880	=pod
2033		2881
2034	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2035		2883
2036	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2037	cf::object::player player	2888	cf::object::player
2038	cf::player peaceful	2889	player
2039	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2040		2896
2041	=cut	2897	=cut
2042		2898
2043	for (	2899	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2045	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2047	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2048	) {	2906	) {
2049	no strict 'refs';	2907	no strict 'refs';
…		…
2120	=back	2978	=back
2121		2979
2122	=cut	2980	=cut
2123		2981
2124	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2125		2984
2126	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2127		2987
2128	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2129	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2130	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2131		2991
2132	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2133	using it, it should be unique.
2134		2993
2135	=over 4	2994	warn "loading facedata from $path\n";
2136		2995
2137	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2138		2999
2139	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142		3001
2143	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2144		3004
2145	Returns a single value from the database	3005	# patch in the exptable
2146		3006	$facedata->{resource}{"res/exp_table"} = {
2147	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2148		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}
2175
2176	my $pid;
2177
2178	sub db_save() {
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	3009	};
		3010	cf::cede_to_tick;
2198		3011
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2203		3014
2204	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
2205	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
2207	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
2208	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2209		3021
2210	sub db_put($$;$) {	3022	cf::cede_to_tick;
2211	if (@_ >= 3) {
2212	$DB->{$_[0]}{$_[1]} = $_[2];
2213	} else {
2214	$DB->{$_[0]} = $_[1];
2215	}
2216	db_dirty;
2217	}
2218
2219	cf::global->attach (
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3023	}
2224	);
2225	}
2226		3024
2227	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2229		3035
2230	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2232	or return;	3163	or return;
2233		3164
2234	local $/;	3165	local $/;
2235	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2236		3167
…		…
2250		3181
2251	sub main {	3182	sub main {
2252	# we must not ever block the main coroutine	3183	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3184	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3185	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3186	(async {
2255	async { Event::one_event };	3187	Event::one_event;
		3188	})->prio (Coro::PRIO_MAX);
2256	};	3189	};
2257		3190
2258	cfg_load;	3191	reload_config;
2259	db_load;	3192	db_init;
2260	load_extensions;	3193	load_extensions;
		3194
		3195	$TICK_WATCHER->start;
2261	Event::loop;	3196	Event::loop;
2262	}	3197	}
2263		3198
2264	#############################################################################	3199	#############################################################################
2265	# initialisation and cleanup	3200	# initialisation and cleanup
2266		3201
2267	# install some emergency cleanup handlers	3202	# install some emergency cleanup handlers
2268	BEGIN {	3203	BEGIN {
2269	for my $signal (qw(INT HUP TERM)) {	3204	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3205	Event->signal (
		3206	reentrant => 0,
2271	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2272	signal => $signal,	3208	signal => $signal,
		3209	prio => 0,
2273	cb => sub {	3210	cb => sub {
2274	cf::cleanup "SIG$signal";	3211	cf::cleanup "SIG$signal";
2275	},	3212	},
2276	);	3213	);
2277	}	3214	}
2278	}	3215	}
2279		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2280	sub emergency_save() {	3255	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2282		3257
2283	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2284		3259
2285	cf::sync_job {	3260	cf::sync_job {
2286	# use a peculiar iteration method to avoid tripping on perl	3261	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3262	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3263	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3264	warn "begin emergency player save\n";
2290	for my $login (keys %cf::PLAYER) {	3265	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3266	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3267	$pl->valid or next;
2293	$pl->save;	3268	$pl->save;
…		…
2299	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3275	$map->valid or next;
2301	$map->save;	3276	$map->save;
2302	}	3277	}
2303	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2304	};	3283	};
2305		3284
2306	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2307	}	3286	}
2308		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2309	sub reload() {	3295	sub do_reload_perl() {
2310	# can/must only be called in main	3296	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine\n";	3298	warn "can only reload from main coroutine";
2313	return;	3299	return;
2314	}	3300	}
2315		3301
2316	warn "reloading...";	3302	warn "reloading...";
2317		3303
2318	my $guard = freeze_mainloop;	3304	warn "entering sync_job";
		3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2320		3310
2321	eval {	3311	warn "syncing database to disk";
		3312	BDB::db_env_txn_checkpoint $DB_ENV;
		3313
2322	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2323		3315
2324	# cancel all watchers	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2325	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}	3319	}
2328		3320
		3321	warn "flushing outstanding aio requests";
		3322	for (;;) {
		3323	BDB::flush;
		3324	IO::AIO::flush;
		3325	Coro::cede;
		3326	last unless IO::AIO::nreqs || BDB::nreqs;
		3327	warn "iterate...";
		3328	}
		3329
		3330	++$RELOAD;
		3331
2329	# cancel all extension coros	3332	warn "cancelling all extension coros";
2330	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3334	%EXT_CORO = ();
2332		3335
2333	# unload all extensions	3336	warn "removing commands";
2334	for (@exts) {	3337	%COMMAND = ();
		3338
		3339	warn "removing ext/exti commands";
		3340	%EXTCMD = ();
		3341	%EXTICMD = ();
		3342
		3343	warn "unloading/nuking all extensions";
		3344	for my $pkg (@EXTS) {
2335	warn "unloading <$_>";	3345	warn "... unloading $pkg";
2336	unload_extension $_;	3346
		3347	if (my $cb = $pkg->can ("unload")) {
		3348	eval {
		3349	$cb->($pkg);
		3350	1
		3351	} or warn "$pkg unloaded, but with errors: $@";
2337	}	3352	}
2338		3353
		3354	warn "... nuking $pkg";
		3355	Symbol::delete_package $pkg;
		3356	}
		3357
2339	# unload all modules loaded from $LIBDIR	3358	warn "unloading all perl modules loaded from $LIBDIR";
2340	while (my ($k, $v) = each %INC) {	3359	while (my ($k, $v) = each %INC) {
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342		3361
2343	warn "removing <$k>";	3362	warn "... unloading $k";
2344	delete $INC{$k};	3363	delete $INC{$k};
2345		3364
2346	$k =~ s/\.pm$//;	3365	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;	3366	$k =~ s/\//::/g;
2348		3367
…		…
2351	}	3370	}
2352		3371
2353	Symbol::delete_package $k;	3372	Symbol::delete_package $k;
2354	}	3373	}
2355		3374
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	3375	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3378
2364	# remove register_script_function callbacks
2365	# TODO
2366
2367	# unload cf.pm "a bit"	3379	warn "unloading cf.pm \"a bit\"";
2368	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2369		3382
2370	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2371	# and global variables created in xs	3384	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2373		3386
2374	# reload cf.pm	3387	warn "unload completed, starting to reload now";
		3388
2375	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2376	require cf;	3390	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2378		3392
2379	# load config and database again	3393	warn "loading config and database again";
2380	cf::cfg_load;	3394	cf::reload_config;
2381	cf::db_load;
2382		3395
2383	# load extensions
2384	warn "load extensions";	3396	warn "loading extensions";
2385	cf::load_extensions;	3397	cf::load_extensions;
2386		3398
2387	# reattach attachments to objects	3399	warn "reattaching attachments to objects/players";
2388	warn "reattach";	3400	_global_reattach; # objects, sockets
2389	_global_reattach;	3401	warn "reattaching attachments to maps";
2390	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
2391	};	3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2392		3405
2393	if ($@) {	3406	warn "leaving sync_job";
		3407
		3408	1
		3409	} or do {
2394	warn $@;	3410	warn $@;
2395	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2396	exit 1;	3412	exit 1;
2397	}	3413	};
2398		3414
2399	warn "reloaded successfully";	3415	warn "reloaded";
2400	};	3416	};
2401		3417
2402	#############################################################################	3418	our $RELOAD_WATCHER; # used only during reload
2403		3419
2404	unless ($LINK_MAP) {	3420	sub reload_perl() {
2405	$LINK_MAP = cf::map::new;	3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
2406		3423
2407	$LINK_MAP->width (41);	3424	$RELOAD_WATCHER ||= Event->timer (
2408	$LINK_MAP->height (41);	3425	reentrant => 0,
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,	3426	after => 0,
		3427	data => WF_AUTOCANCEL,
2417	cb => sub {	3428	cb => sub {
2418	$_[0]->w->cancel;	3429	do_reload_perl;
2419		3430	undef $RELOAD_WATCHER;
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});	3431	},
2438		3432	);
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	3433	}
2444
2445	register "<global>", __PACKAGE__;
2446		3434
2447	register_command "reload" => sub {	3435	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2449		3437
2450	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	3439	$who->message ("reloading server.");
		3440	async { reload_perl };
2454	}	3441	}
2455	};	3442	};
2456		3443
2457	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
		3445
		3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
2458		3468
2459	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
2460	reentrant => 0,	3470	reentrant => 0,
		3471	parked => 1,
2461	prio => 0,	3472	prio => 0,
2462	at => $NEXT_TICK || $TICK,	3473	at => $NEXT_TICK || $TICK,
2463	data => WF_AUTOCANCEL,	3474	data => WF_AUTOCANCEL,
2464	cb => sub {	3475	cb => sub {
		3476	if ($Coro::current != $Coro::main) {
		3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3478	unless ++$bug_warning > 10;
		3479	return;
		3480	}
		3481
		3482	$NOW = $tick_start = Event::time;
		3483
2465	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
2466	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
2468		3488
2469	$WAIT_FOR_TICK->broadcast;	3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3491	Coro::async_pool {
		3492	write_runtime
		3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
		3495	}
		3496
		3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2471		3505
2472	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2474		3508
2475	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2476	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
2477	},	3516	},
2478	);	3517	);
2479		3518
		3519	{
		3520	BDB::min_parallel 8;
2480	IO::AIO::max_poll_time $TICK * 0.2;	3521	BDB::max_poll_time $TICK * 0.1;
2481		3522	$BDB_POLL_WATCHER = Event->io (
2482	Event->io (	3523	reentrant => 0,
2483	fd => IO::AIO::poll_fileno,	3524	fd => BDB::poll_fileno,
2484	poll => 'r',	3525	poll => 'r',
2485	prio => 5,	3526	prio => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,	3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3549	| BDB::LOG_AUTOREMOVE, 1);
		3550	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3551	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3552
		3553	cf::sync_job {
		3554	eval {
		3555	BDB::db_env_open
		3556	$DB_ENV,
		3557	$BDBDIR,
		3558	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3559	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3560	0666;
		3561
		3562	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_DEADLOCK_WATCHER = Event->timer (
2492	after => 0,	3570	after => 3,
2493	interval => 10,	3571	interval => 1,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
2494	cb => sub {	3575	cb => sub {
2495	(Coro::unblock_sub {	3576	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2496	write_runtime	3577	},
2497	or warn "ERROR: unable to write runtime file: $!";	3578	);
		3579	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3580	after => 11,
		3581	interval => 60,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3587	},
		3588	);
		3589	$BDB_TRICKLE_WATCHER = Event->timer (
		3590	after => 5,
		3591	interval => 10,
		3592	hard => 1,
		3593	prio => 0,
		3594	data => WF_AUTOCANCEL,
		3595	cb => sub {
		3596	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3597	},
		3598	);
		3599	}
		3600
		3601	{
		3602	IO::AIO::min_parallel 8;
		3603
		3604	undef $Coro::AIO::WATCHER;
		3605	IO::AIO::max_poll_time $TICK * 0.1;
		3606	$AIO_POLL_WATCHER = Event->io (
		3607	reentrant => 0,
		3608	data => WF_AUTOCANCEL,
		3609	fd => IO::AIO::poll_fileno,
		3610	poll => 'r',
		3611	prio => 6,
		3612	cb => \&IO::AIO::poll_cb,
		3613	);
		3614	}
		3615
		3616	my $_log_backtrace;
		3617
		3618	sub _log_backtrace {
		3619	my ($msg, @addr) = @_;
		3620
		3621	$msg =~ s/\n//;
		3622
		3623	# limit the # of concurrent backtraces
		3624	if ($_log_backtrace < 2) {
		3625	++$_log_backtrace;
		3626	async {
		3627	my @bt = fork_call {
		3628	@addr = map { sprintf "%x", $_ } @addr;
		3629	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3630	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3631	or die "addr2line: $!";
		3632
		3633	my @funcs;
		3634	my @res = <$fh>;
		3635	chomp for @res;
		3636	while (@res) {
		3637	my ($func, $line) = splice @res, 0, 2, ();
		3638	push @funcs, "[$func] $line";
		3639	}
		3640
		3641	@funcs
		3642	};
		3643
		3644	LOG llevInfo, "[ABT] $msg\n";
		3645	LOG llevInfo, "[ABT] $_\n" for @bt;
		3646	--$_log_backtrace;
2498	})->();	3647	};
		3648	} else {
		3649	LOG llevInfo, "[ABT] $msg\n";
		3650	LOG llevInfo, "[ABT] [suppressed]\n";
2499	},	3651	}
2500	);	3652	}
		3653
		3654	# load additional modules
		3655	use cf::pod;
2501		3656
2502	END { cf::emergency_save }	3657	END { cf::emergency_save }
2503		3658
2504	1	3659	1
2505		3660

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