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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.378 by root, Thu Oct 4 11:36:54 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	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
265	}	397	}
266		398
267	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
268		400
269	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		406
275	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
276		408
277	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
278		410
279	The design of crossfire+ requires that the main coro ($Coro::main) is	411	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	412	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.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
282		415
283	If it must be done, put the blocking parts into C<sync_job>. This will run	416	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	417	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	418	server will be frozen during this time, so the block should either finish
286	fast or be very important.	419	fast or be very important.
…		…
289		422
290	sub sync_job(&) {	423	sub sync_job(&) {
291	my ($job) = @_;	424	my ($job) = @_;
292		425
293	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
294	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
296		431
297	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	433	# (but this is cancel-safe)
…		…
300		435
301	my $busy = 1;	436	my $busy = 1;
302	my @res;	437	my @res;
303		438
304	(async {	439	(async {
		440	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	441	@res = eval { $job->() };
306	warn $@ if $@;	442	warn $@ if $@;
307	undef $busy;	443	undef $busy;
308	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
309		445
310	while ($busy) {	446	while ($busy) {
311	Coro::cede or Event::one_event;	447	Coro::cede or Event::one_event;
312	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
313		456
314	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
315	} else {	458	} else {
316	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
317		460
…		…
319	}	462	}
320	}	463	}
321		464
322	=item $coro = cf::async_ext { BLOCK }	465	=item $coro = cf::async_ext { BLOCK }
323		466
324	Like async, but this coro is automcatially being canceled when the	467	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	468	extension calling this is being unloaded.
326		469
327	=cut	470	=cut
328		471
329	sub async_ext(&) {	472	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
338		481
339	$coro	482	$coro
340	}	483	}
341		484
342	sub write_runtime {	485	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		486
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	487	Executes the given code block with the given arguments in a seperate
346	or return;	488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
347		491
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	492	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		493
352	aio_fsync $fh	494	sub fork_call(&@) {
353	and return;	495	my ($cb, @args) = @_;
354		496
355	close $fh	497	# we seemingly have to make a local copy of the whole thing,
356	or return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
357		500
358	aio_rename "$runtime~", $runtime	501	my @res = Coro::Util::fork_eval {
359	and return;	502	reset_signals;
		503	&$cb
		504	}, @args;
360		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
361	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	645	}
363		646
364	=back	647	=back
365		648
366	=cut	649	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494		650
495	#############################################################################	651	#############################################################################
496		652
497	=head2 ATTACHABLE OBJECTS	653	=head2 ATTACHABLE OBJECTS
498		654
…		…
500	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
501	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
502		658
503	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
504	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
505	crossfire+).	661	Crossfire TRT).
506		662
507	=over 4	663	=over 4
508		664
509	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
510		666
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	781	our @CB_MAP = ();
626		782
627	my %attachment;	783	my %attachment;
628		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
		790
629	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
631		793
632	use sort 'stable';	794	use sort 'stable';
633		795
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
668		830
669	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		835
674	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	837	my $pkg = shift @arg;
676		838
677	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
706	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
707	}	869	}
708		870
709	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
710	} else {	872	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
712	}	874	}
713		875
714	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
715	}	877	}
716		878
…		…
718	if (ref $_[0]) {	880	if (ref $_[0]) {
719	_object_attach @_;	881	_object_attach @_;
720	} else {	882	} else {
721	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
722	}	884	}
		885	_recalc_want;
723	};	886	};
724		887
725	# all those should be optimised	888	# all those should be optimised
726	sub cf::attachable::detach {	889	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
731	reattach ($obj);	894	reattach ($obj);
732	} else {	895	} else {
733	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
734	}	897	}
		898	_recalc_want;
735	};	899	};
736		900
737	sub cf::attachable::attached {	901	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
739		903
…		…
754	";	918	";
755	die if $@;	919	die if $@;
756	}	920	}
757		921
758	our $override;	922	our $override;
759	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
760		924
761	sub override {	925	sub override {
762	$override = 1;	926	$override = 1;
763	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
764	}	928	}
765		929
766	sub do_invoke {	930	sub do_invoke {
767	my $event = shift;	931	my $event = shift;
768	my $callbacks = shift;	932	my $callbacks = shift;
769		933
770	@invoke_results = ();	934	@INVOKE_RESULTS = ();
771		935
772	local $override;	936	local $override;
773		937
774	for (@$callbacks) {	938	for (@$callbacks) {
775	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
792		956
793	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
794		958
795	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
796	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
797	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		962
799	=back	963	=back
800		964
801	=cut	965	=cut
802		966
803	#############################################################################	967	#############################################################################
804	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
805		980
806	sub reattach {	981	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		986
810	my $registry = $obj->registry;	987	my $registry = $obj->registry;
811		988
812	@$registry = ();	989	@$registry = ();
813		990
…		…
854	sub object_freezer_save {	1031	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
856		1033
857	sync_job {	1034	sync_job {
858	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
861		1039
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
865	aio_fsync $fh;	1043	aio_fsync $fh if $cf::USE_FSYNC;
866	close $fh;	1044	close $fh;
867		1045
868	if (@$objs) {	1046	if (@$objs) {
869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
870	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1050	aio_write $fh, 0, (length $data), $data, 0;
873	aio_fsync $fh;	1051	aio_fsync $fh if $cf::USE_FSYNC;
874	close $fh;	1052	close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1053	aio_rename "$filename.pst~", "$filename.pst";
876	}	1054	}
877	} else {	1055	} else {
878	aio_unlink "$filename.pst";	1056	aio_unlink "$filename.pst";
…		…
884	}	1062	}
885	} else {	1063	} else {
886	aio_unlink $filename;	1064	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
888	}	1066	}
889	}	1067	};
890	}	1068	}
891		1069
892	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
894		1072
…		…
906	or return;	1084	or return;
907		1085
908	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
910	or return;	1088	or return;
		1089
911	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
912	}	1091	}
913		1092
		1093	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1094	warn sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1095	$decname, length $data, scalar @{$av || []};
		1096
916	return ($data, $av);	1097	($data, $av)
917	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
918		1105
919	#############################################################################	1106	#############################################################################
920	# command handling &c	1107	# command handling &c
921		1108
922	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1123	}
937		1124
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
939		1126
940	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
941		1132
942	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
943	called.	1134	called.
944		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
945	=cut	1147	=cut
946		1148
947	sub register_extcmd {	1149	sub register_extcmd {
948	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
949		1151
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
954	}	1159	}
955		1160
956	cf::player->attach (	1161	cf::player->attach (
957	on_command => sub {	1162	on_command => sub {
958	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
967	cf::override;	1172	cf::override;
968	},	1173	},
969	on_extcmd => sub {	1174	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
971		1176
972	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1178
974	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
977	$pl->ext_reply ($msg->{msgid}, %reply);
978	}
979	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
980	} else {	1194	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1196	}
983		1197
984	cf::override;	1198	cf::override;
985	},	1199	},
986	);	1200	);
987		1201
988	sub register {
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {
995	my ($path) = @_;
996
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
998	my $base = $1;
999	my $pkg = $1;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}
1047	}
1048
1049	# remove extcmds
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1051	delete $EXTCMD{$name};
1052	}
1053
1054	if (my $cb = $pkg->can ("unload")) {
1055	eval {
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060
1061	Symbol::delete_package $pkg;
1062	}
1063
1064	sub load_extensions {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
1065	for my $ext (<$LIBDIR/*.ext>) {	1206	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1207	next unless -r $path;
1067	eval {	1208
1068	load_extension $ext;	1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
1069	1	1266	}
1070	} or warn "$ext not loaded: $@";	1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
1071	}	1272	};
1072	}	1273	}
1073		1274
1074	#############################################################################	1275	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1276
1077	*cf::mapsupport::on_clean = sub {	1277	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1278
1090	=head2 CORE EXTENSIONS	1279	=head2 CORE EXTENSIONS
1091		1280
1092	Functions and methods that extend core crossfire objects.	1281	Functions and methods that extend core crossfire objects.
1093		1282
…		…
1099		1288
1100	=head3 cf::player	1289	=head3 cf::player
1101		1290
1102	=over 4	1291	=over 4
1103		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
1104	=item cf::player::find $login	1307	=item cf::player::find $login
1105		1308
1106	Returns the given player object, loading it if necessary (might block).	1309	Returns the given player object, loading it if necessary (might block).
1107		1310
1108	=cut	1311	=cut
1109		1312
1110	sub playerdir($) {	1313	sub playerdir($) {
1111	cf::localdir	1314	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1316	}
1117		1317
1118	sub path($) {	1318	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1320
1121	(playerdir $login) . "/$login.pl"	1321	(playerdir $login) . "/playerdata"
1122	}	1322	}
1123		1323
1124	sub find_active($) {	1324	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1325	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1326	and $cf::PLAYER{$_[0]}->active
…		…
1129		1329
1130	sub exists($) {	1330	sub exists($) {
1131	my ($login) = @_;	1331	my ($login) = @_;
1132		1332
1133	$cf::PLAYER{$login}	1333	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1334	or cf::sync_job { !aio_stat path $login }
1135	}	1335	}
1136		1336
1137	sub find($) {	1337	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1338	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1339	my $login = $_[0];
1140		1340
1141	my $guard = cf::lock_acquire "user_find:$login";	1341	my $guard = cf::lock_acquire "user_find:$login";
1142		1342
1143	$cf::PLAYER{$_[0]} || do {	1343	$cf::PLAYER{$_[0]} || do {
1144	my $pl = load_pl path $login	1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
1145	or return;	1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
1146	$cf::PLAYER{$login} = $pl	1358	$cf::PLAYER{$login} = $pl
1147	}	1359	}
1148	}	1360	}
1149	}	1361	}
1150		1362
…		…
1160		1372
1161	aio_mkdir playerdir $pl, 0770;	1373	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1374	$pl->{last_save} = $cf::RUNTIME;
1163		1375
1164	$pl->save_pl ($path);	1376	$pl->save_pl ($path);
1165	Coro::cede;	1377	cf::cede_to_tick;
1166	}	1378	}
1167		1379
1168	sub new($) {	1380	sub new($) {
1169	my ($login) = @_;	1381	my ($login) = @_;
1170		1382
…		…
1176	$cf::PLAYER{$login} = $self;	1388	$cf::PLAYER{$login} = $self;
1177		1389
1178	$self	1390	$self
1179	}	1391	}
1180		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
1181	=item $pl->quit_character	1403	=item $pl->quit_character
1182		1404
1183	Nukes the player without looking back. If logged in, the connection will	1405	Nukes the player without looking back. If logged in, the connection will
1184	be destroyed. May block for a long time.	1406	be destroyed. May block for a long time.
1185		1407
1186	=cut	1408	=cut
1187		1409
1188	sub quit_character {	1410	sub quit_character {
1189	my ($pl) = @_;	1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
1190		1414
1191	$pl->{deny_save} = 1;	1415	$pl->{deny_save} = 1;
1192	$pl->password ("*"); # this should lock out the player until we nuked the dir	1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
1193		1417
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1199	my $path = playerdir $pl;	1423	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1424	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1425	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1426	delete $cf::PLAYER{$pl->ob->name};
1203	$pl->destroy;	1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
1204	IO::AIO::aio_rmtree $temp;	1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
1205	}	1449	}
1206		1450
1207	=item cf::player::list_logins	1451	=item cf::player::list_logins
1208		1452
1209	Returns am arrayref of all valid playernames in the system, can take a	1453	Returns am arrayref of all valid playernames in the system, can take a
1210	while and may block, so not sync_job-capable, ever.	1454	while and may block, so not sync_job-capable, ever.
1211		1455
1212	=cut	1456	=cut
1213		1457
1214	sub list_logins {	1458	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1459	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1460	or return [];
1217		1461
1218	my @logins;	1462	my @logins;
1219		1463
1220	for my $login (@$dirs) {	1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1470	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
1224		1473
1225	utf8::decode $login;	1474	utf8::decode $login;
1226	push @logins, $login;	1475	push @logins, $login;
1227	}	1476	}
1228		1477
1229	\@logins	1478	\@logins
1230	}	1479	}
1231		1480
1232	=item $player->maps	1481	=item $player->maps
1233		1482
1234	Returns an arrayref of cf::path's of all maps that are private for this	1483	Returns an arrayref of map paths that are private for this
1235	player. May block.	1484	player. May block.
1236		1485
1237	=cut	1486	=cut
1238		1487
1239	sub maps($) {	1488	sub maps($) {
1240	my ($pl) = @_;	1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1492
1242	my $files = aio_readdir playerdir $pl	1493	my $files = aio_readdir playerdir $pl
1243	or return;	1494	or return;
1244		1495
1245	my @paths;	1496	my @paths;
…		…
1247	for (@$files) {	1498	for (@$files) {
1248	utf8::decode $_;	1499	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1500	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1501	next unless /^$PATH_SEP/o;
1251		1502
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1503	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1504	}
1254		1505
1255	\@paths	1506	\@paths
1256	}	1507	}
1257		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1560	=item $player->ext_reply ($msgid, @msg)
1259		1561
1260	Sends an ext reply to the player.	1562	Sends an ext reply to the player.
1261		1563
1262	=cut	1564	=cut
1263		1565
1264	sub ext_reply($$$%) {	1566	sub ext_reply($$@) {
1265	my ($self, $id, %msg) = @_;	1567	my ($self, $id, @msg) = @_;
1266		1568
1267	$msg{msgid} = $id;	1569	$self->ns->ext_reply ($id, @msg)
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1570	}
1271		1571
1272	package cf;	1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
		1599	my ($path) = @_;
		1600
		1601	my ($match, $specificity);
		1602
		1603	for my $region (list) {
		1604	if ($region->{match} && $path =~ $region->{match}) {
		1605	($match, $specificity) = ($region, $region->specificity)
		1606	if $region->specificity > $specificity;
		1607	}
		1608	}
		1609
		1610	$match
		1611	}
1273		1612
1274	=back	1613	=back
1275
1276		1614
1277	=head3 cf::map	1615	=head3 cf::map
1278		1616
1279	=over 4	1617	=over 4
1280		1618
…		…
1283	package cf::map;	1621	package cf::map;
1284		1622
1285	use Fcntl;	1623	use Fcntl;
1286	use Coro::AIO;	1624	use Coro::AIO;
1287		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
1288	our $MAX_RESET = 3600;	1630	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1631	our $DEFAULT_RESET = 3000;
1290		1632
1291	sub generate_random_map {	1633	sub generate_random_map {
1292	my ($path, $rmp) = @_;	1634	my ($self, $rmp) = @_;
1293
1294	# mit "rum" bekleckern, nicht	1635	# mit "rum" bekleckern, nicht
1295	cf::map::_create_random_map	1636	$self->_create_random_map (
1296	$path,
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},	1640	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},	1641	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1642	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1643	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1644	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1645	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region})	1647	(cf::region::find $rmp->{region}), $rmp->{custom}
		1648	)
		1649	}
		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
		1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
		1673	my ($self, $merge) = @_;
		1674
		1675	# we have to keep some variables in memory intact
		1676	local $self->{path};
		1677	local $self->{load_path};
		1678
		1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
		1683	my ($path, $base) = @_;
		1684
		1685	$path = "$path"; # make sure its a string
		1686
		1687	$path =~ s/\.map$//;
		1688
		1689	# map plan:
		1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
		1697
		1698	$path =~ s/$PATH_SEP/\//go;
		1699
		1700	# treat it as relative path if it starts with
		1701	# something that looks reasonable
		1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1704
		1705	$base =~ s{[^/]+/?$}{};
		1706	$path = "$base/$path";
		1707	}
		1708
		1709	for ($path) {
		1710	redo if s{//}{/};
		1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
		1714
		1715	$path
		1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
1308	}	1776	}
1309		1777
1310	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1311	# all maps in C++...	1779	# all maps in C++...
1312	sub change_all_map_light {	1780	sub change_all_map_light {
…		…
1314		1782
1315	$_->change_map_light ($change)	1783	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1784	for grep $_->outdoor, values %cf::MAP;
1317	}	1785	}
1318		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
1319	sub try_load_header($) {	1803	sub load_header_from($) {
1320	my ($path) = @_;	1804	my ($self, $path) = @_;
1321		1805
1322	utf8::encode $path;	1806	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1324	or return;	1808	or return;
1325		1809
1326	my $map = cf::map::new	1810	$self->_load_header ($f)
1327	or return;	1811	or return;
1328		1812
1329	# for better error messages only, will be overwritten	1813	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	1814	$f->resolve_delayed_derefs;
1331		1815
1332	$map->load_header ($path)	1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
		1857	} else {
		1858	$self->load_header_orig
1333	or return;	1859	or return;
		1860	$self->prepare_orig;
		1861	}
1334		1862
1335	$map->{load_path} = $path;	1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
1336		1865
1337	$map	1866	$self->default_region (cf::region::find_by_path $self->{path})
		1867	unless $self->default_region;
		1868
		1869	1
1338	}	1870	}
1339		1871
1340	sub find;	1872	sub find;
1341	sub find {	1873	sub find {
1342	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1343		1875
1344	#warn "find<$path,$origin>\n";#d#
1345
1346	$path = new cf::path $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1347	my $key = $path->as_string;
1348		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
1349	cf::lock_wait "map_find:$key";	1879	cf::lock_wait "map_find:$path";
1350		1880
1351	$cf::MAP{$key} || do {	1881	$cf::MAP{$path} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1353		1884
1354	# do it the slow way	1885	my $map = new_from_path cf::map $path
1355	my $map = try_load_header $path->save_path;
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	1886	or return;
1373		1887
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	1888	$map->{last_save} = $cf::RUNTIME;
1386		1889
1387	Coro::cede;	1890	$map->load_header
		1891	or return;
1388		1892
1389	if ($map->should_reset) {	1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1390	$map->reset;	1898	$map->reset;
1391	undef $guard;
1392	$map = find $path	1899	return find $path;
1393	or return;
1394	}	1900	}
1395		1901
1396	$cf::MAP{$key} = $map	1902	$cf::MAP{$path} = $map
1397	}	1903	}
1398	}	1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
1399		1908
1400	sub load {	1909	sub load {
1401	my ($self) = @_;	1910	my ($self) = @_;
1402		1911
		1912	local $self->{deny_reset} = 1; # loading can take a long time
		1913
1403	my $path = $self->{path};	1914	my $path = $self->{path};
		1915
		1916	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1917	my $guard = cf::lock_acquire "map_data:$path";
1405		1918
		1919	return unless $self->valid;
1406	return if $self->in_memory != cf::MAP_SWAPPED;	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
1407		1921
1408	$self->in_memory (cf::MAP_LOADING);	1922	$self->in_memory (cf::MAP_LOADING);
1409		1923
1410	$self->alloc;	1924	$self->alloc;
1411	$self->load_objects ($self->{load_path}, 1)	1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1412	or return;	1932	or return;
1413		1933
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1415	if delete $self->{load_original};	1935	if delete $self->{load_original};
1416		1936
1417	if (my $uniq = $path->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	1938	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	1941	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1422	}	1945	}
1423	}	1946	}
1424		1947
1425	Coro::cede;	1948	$f->resolve_delayed_derefs;
1426		1949
		1950	cf::cede_to_tick;
1427	# now do the right thing for maps	1951	# now do the right thing for maps
1428	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	1953	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	1954	unless $self->difficulty;
		1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1440	$self->activate;	1964	$self->activate;
1441	}	1965	}
1442		1966
1443	Coro::cede;	1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
1444		1969
1445	$self->in_memory (cf::MAP_IN_MEMORY);	1970	$self->in_memory (cf::MAP_IN_MEMORY);
		1971	}
		1972
		1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
1446	}	1986	}
1447		1987
1448	# find and load all maps in the 3x3 area around a map	1988	# find and load all maps in the 3x3 area around a map
1449	sub load_diag {	1989	sub load_neighbours {
1450	my ($map) = @_;	1990	my ($map) = @_;
1451		1991
1452	my @diag; # diagonal neighbours	1992	my @neigh; # diagonal neighbours
1453		1993
1454	for (0 .. 3) {	1994	for (0 .. 3) {
1455	my $neigh = $map->tile_path ($_)	1995	my $neigh = $map->tile_path ($_)
1456	or next;	1996	or next;
1457	$neigh = find $neigh, $map	1997	$neigh = find $neigh, $map
1458	or next;	1998	or next;
1459	$neigh->load;	1999	$neigh->load;
1460		2000
		2001	push @neigh,
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1463	}	2004	}
1464		2005
1465	for (@diag) {	2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
1466	my $neigh = find @$_	2008	my $neigh = find $path, $origin
1467	or next;	2009	or next;
1468	$neigh->load;	2010	$neigh->load;
1469	}	2011	}
1470	}	2012	}
1471		2013
…		…
1476	}	2018	}
1477		2019
1478	sub do_load_sync {	2020	sub do_load_sync {
1479	my ($map) = @_;	2021	my ($map) = @_;
1480		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
1481	cf::sync_job { $map->load };	2026	cf::sync_job { $map->load };
1482	}	2027	}
1483		2028
1484	our %MAP_PREFETCH;	2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
1485	our $MAP_PREFETCHER = Coro::async {	2043	$MAP_PREFETCHER ||= cf::async {
1486	while () {	2044	$Coro::current->{desc} = "map prefetcher";
		2045
1487	while (%MAP_PREFETCH) {	2046	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2047	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
1490	my $path = delete $MAP_PREFETCH{$key};	2052	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2053	}
1496	Coro::schedule;	2054	}
		2055	undef $MAP_PREFETCHER;
1497	}	2056	};
1498	};
1499
1500	sub find_async {
1501	my ($path, $origin) = @_;
1502
1503	$path = new cf::path $path, $origin && $origin->path;
1504	my $key = $path->as_string;
1505
1506	if (my $map = $cf::MAP{$key}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}
1509
1510	$MAP_PREFETCH{$key} = $path;
1511	$MAP_PREFETCHER->ready;	2057	$MAP_PREFETCHER->prio (6);
1512		2058
1513	()	2059	()
1514	}	2060	}
1515		2061
1516	sub save {	2062	sub save {
1517	my ($self) = @_;	2063	my ($self) = @_;
1518		2064
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2066
1521	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1522		2068
1523	return unless $self->dirty;	2069	return unless $self->dirty;
1524		2070
1525	my $save = $self->{path}->save_path; utf8::encode $save;	2071	my $save = $self->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
1527		2073
1528	$self->{load_path} = $save;	2074	$self->{load_path} = $save;
1529		2075
1530	return if $self->{deny_save};	2076	return if $self->{deny_save};
1531		2077
1532	local $self->{last_access} = $self->last_access;#d#	2078	local $self->{last_access} = $self->last_access;#d#
1533		2079
1534	cf::async {	2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
1535	$_->contr->save for $self->players;	2082	$_->contr->save for $self->players;
1536	};	2083	};
1537		2084
1538	if ($uniq) {	2085	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);	2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {	2088	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}	2090	}
1544	}	2091	}
1545		2092
1546	sub swap_out {	2093	sub swap_out {
1547	my ($self) = @_;	2094	my ($self) = @_;
1548		2095
1549	# save first because save cedes	2096	# save first because save cedes
1550	$self->save;	2097	$self->save;
1551		2098
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2100
1554	return if $self->players;	2101	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};	2103	return if $self->{deny_save};
1557		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1558	$self->clear;	2109	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2110	}
1561		2111
1562	sub reset_at {	2112	sub reset_at {
1563	my ($self) = @_;	2113	my ($self) = @_;
1564		2114
1565	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1568		2117
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2120
…		…
1576	my ($self) = @_;	2125	my ($self) = @_;
1577		2126
1578	$self->reset_at <= $cf::RUNTIME	2127	$self->reset_at <= $cf::RUNTIME
1579	}	2128	}
1580		2129
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2130	sub reset {
1603	my ($self) = @_;	2131	my ($self) = @_;
1604		2132
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2134
1607	return if $self->players;	2135	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2136
1610	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
1611		2148
1612	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1613		2150
		2151	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
1615		2154
1616	$self->unlink_save;	2155	$self->unlink_save;
1617	$self->destroy;	2156	$self->destroy;
1618	}	2157	}
1619		2158
1620	my $nuke_counter = "aaaa";	2159	my $nuke_counter = "aaaa";
1621		2160
1622	sub nuke {	2161	sub nuke {
1623	my ($self) = @_;	2162	my ($self) = @_;
1624		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
		2167	delete $cf::MAP{$self->path};
		2168
		2169	$self->unlink_save;
		2170
		2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2173	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2174	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2176
		2177	$cf::MAP{$self->path} = $self;
		2178	}
		2179
1628	$self->reset; # polite request, might not happen	2180	$self->reset; # polite request, might not happen
1629	}	2181	}
1630		2182
1631	sub customise_for {	2183	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2184
1634	if ($map->per_player) {	2185	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
1636	}	2191	[
		2192	map {
		2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
		2199	}
1637		2200
1638	$map	2201	=item $maps = cf::map::random_maps
		2202
		2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
		2205
		2206	=cut
		2207
		2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
1639	}	2217	}
1640		2218
1641	=item cf::map::unique_maps	2219	=item cf::map::unique_maps
1642		2220
1643	Returns an arrayref of cf::path's of all shared maps that have	2221	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	2222	instantiated unique items. May block.
1645		2223
1646	=cut	2224	=cut
1647		2225
1648	sub unique_maps() {	2226	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2227	[
1650	or return;	2228	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2229	utf8::decode $_;
1656	next if /\.pst$/;	2230	/\.map$/
1657	next unless /^$PATH_SEP/o;	2231	? normalise $_
1658		2232	: ()
1659	push @paths, new cf::path $_;	2233	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2234	]
1661
1662	\@paths
1663	}	2235	}
1664		2236
1665	package cf;	2237	package cf;
1666		2238
1667	=back	2239	=back
…		…
1685	map { $_, inv_recursive_ $_->inv } @_	2257	map { $_, inv_recursive_ $_->inv } @_
1686	}	2258	}
1687		2259
1688	sub inv_recursive {	2260	sub inv_recursive {
1689	inv_recursive_ inv $_[0]	2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2279	my ($uuid, $name) = ($1, $2);
		2280	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2281	or return;
		2282	$pl->ob->uuid eq $uuid
		2283	or return;
		2284
		2285	$pl->ob
		2286	} else {
		2287	warn "$ref: cannot resolve object reference\n";
		2288	undef
		2289	}
1690	}	2290	}
1691		2291
1692	package cf;	2292	package cf;
1693		2293
1694	=back	2294	=back
…		…
1713		2313
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2314	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2315
1716	if ($self->{record_replies}) {	2316	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2317	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2318
1718	} else {	2319	} else {
		2320	my $pl = $self->contr;
		2321
		2322	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2323	my $dialog = $pl->{npc_dialog};
		2324	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2325
		2326	} else {
1719	$msg = $npc->name . " says: $msg" if $npc;	2327	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2328	$self->message ($msg, $flags);
		2329	}
1721	}	2330	}
		2331	}
		2332
		2333	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2334
		2335	=cut
		2336
		2337	sub cf::object::send_msg {
		2338	my $pl = shift->contr
		2339	or return;
		2340	$pl->send_msg (@_);
1722	}	2341	}
1723		2342
1724	=item $player_object->may ("access")	2343	=item $player_object->may ("access")
1725		2344
1726	Returns wether the given player is authorized to access resource "access"	2345	Returns wether the given player is authorized to access resource "access"
…		…
1739		2358
1740	=item $player_object->enter_link	2359	=item $player_object->enter_link
1741		2360
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2361	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2362
1744	The player should be reaosnably safe there for short amounts of time. You	2363	The player should be reasonably safe there for short amounts of time. You
1745	I<MUST> call C<leave_link> as soon as possible, though.	2364	I<MUST> call C<leave_link> as soon as possible, though.
1746		2365
		2366	Will never block.
		2367
1747	=item $player_object->leave_link ($map, $x, $y)	2368	=item $player_object->leave_link ($map, $x, $y)
1748		2369
1749	Moves the player out of the specila link map onto the given map. If the	2370	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2371	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2372	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2373	fails, to the emergency map position.
1753		2374
1754	Might block.	2375	Might block.
1755		2376
1756	=cut	2377	=cut
		2378
		2379	sub link_map {
		2380	unless ($LINK_MAP) {
		2381	$LINK_MAP = cf::map::find "{link}"
		2382	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2383	$LINK_MAP->load;
		2384	}
		2385
		2386	$LINK_MAP
		2387	}
1757		2388
1758	sub cf::object::player::enter_link {	2389	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2390	my ($self) = @_;
1760		2391
1761	$self->deactivate_recursive;	2392	$self->deactivate_recursive;
1762		2393
1763	return if $self->map == $LINK_MAP;	2394	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2395
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2396	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2397	if $self->map && $self->map->{path} ne "{link}";
1767		2398
1768	$self->enter_map ($LINK_MAP, 20, 20);	2399	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1769	}	2400	}
1770		2401
1771	sub cf::object::player::leave_link {	2402	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2403	my ($self, $map, $x, $y) = @_;
		2404
		2405	return unless $self->contr->active;
1773		2406
1774	my $link_pos = delete $self->{_link_pos};	2407	my $link_pos = delete $self->{_link_pos};
1775		2408
1776	unless ($map) {	2409	unless ($map) {
1777	# restore original map position	2410	# restore original map position
…		…
1791	# use -1 or undef as default coordinates, not 0, 0	2424	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2425	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2426	if $x <=0 && $y <= 0;
1794		2427
1795	$map->load;	2428	$map->load;
1796	$map->load_diag;	2429	$map->load_neighbours;
1797		2430
1798	return unless $self->contr->active;	2431	return unless $self->contr->active;
1799	$self->activate_recursive;	2432	$self->activate_recursive;
		2433
		2434	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1800	$self->enter_map ($map, $x, $y);	2435	$self->enter_map ($map, $x, $y);
1801	}	2436	}
1802		2437
1803	cf::player->attach (	2438	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1804	on_logout => sub {
1805	my ($pl) = @_;
1806		2439
1807	# abort map switching before logout	2440	Moves the player to the given map-path and coordinates by first freezing
1808	if ($pl->ob->{_link_pos}) {	2441	her, loading and preparing them map, calling the provided $check callback
1809	cf::sync_job {	2442	that has to return the map if sucecssful, and then unfreezes the player on
1810	$pl->ob->leave_link	2443	the new (success) or old (failed) map position. In either case, $done will
1811	};	2444	be called at the end of this process.
1812	}
1813	},
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2445
1817	# try to abort aborted map switching on player login :)
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834
1835	=item $player_object->goto ($path, $x, $y)
1836
1837	=cut	2446	=cut
		2447
		2448	our $GOTOGEN;
1838		2449
1839	sub cf::object::player::goto {	2450	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2451	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2452
1842	$path = new cf::path $path;	2453	# do generation counting so two concurrent goto's will be executed in-order
		2454	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2455
1844	$self->enter_link;	2456	$self->enter_link;
1845		2457
1846	(async {	2458	(async {
1847	my $map = cf::map::find $path->as_string;	2459	$Coro::current->{desc} = "player::goto $path $x $y";
		2460
		2461	# *tag paths override both path and x|y
		2462	if ($path =~ /^\*(.*)$/) {
		2463	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2464	my $ob = $obs[rand @obs];
		2465
		2466	# see if we actually can go there
		2467	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2468	$ob = $obs[rand @obs];
		2469	} else {
		2470	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
		2472	# else put us there anyways for now #d#
		2473
		2474	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2475	} else {
		2476	($path, $x, $y) = (undef, undef, undef);
		2477	}
		2478	}
		2479
		2480	my $map = eval {
		2481	my $map = defined $path ? cf::map::find $path : undef;
		2482
		2483	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2484	$map = $map->customise_for ($self);
1849		2485	$map = $check->($map) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2486	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2487	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2488	}
1854		2489
		2490	$map
		2491	};
		2492
		2493	if ($@) {
		2494	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2495	LOG llevError | logBacktrace, Carp::longmess $@;
		2496	}
		2497
		2498	if ($gen == $self->{_goto_generation}) {
		2499	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2500	$self->leave_link ($map, $x, $y);
		2501	}
		2502
		2503	$done->() if $done;
1856	})->prio (1);	2504	})->prio (1);
1857	}	2505	}
1858		2506
1859	=item $player_object->enter_exit ($exit_object)	2507	=item $player_object->enter_exit ($exit_object)
1860		2508
…		…
1862		2510
1863	sub parse_random_map_params {	2511	sub parse_random_map_params {
1864	my ($spec) = @_;	2512	my ($spec) = @_;
1865		2513
1866	my $rmp = { # defaults	2514	my $rmp = { # defaults
1867	xsize => 10,	2515	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2516	ysize => (cf::rndm 15, 40),
		2517	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2518	#layout => string,
1869	};	2519	};
1870		2520
1871	for (split /\n/, $spec) {	2521	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2522	my ($k, $v) = split /\s+/, $_, 2;
1873		2523
…		…
1877	$rmp	2527	$rmp
1878	}	2528	}
1879		2529
1880	sub prepare_random_map {	2530	sub prepare_random_map {
1881	my ($exit) = @_;	2531	my ($exit) = @_;
		2532
		2533	my $guard = cf::lock_acquire "exit_prepare:$exit";
1882		2534
1883	# all this does is basically replace the /! path by	2535	# all this does is basically replace the /! path by
1884	# a new random map path (?random/...) with a seed	2536	# a new random map path (?random/...) with a seed
1885	# that depends on the exit object	2537	# that depends on the exit object
1886		2538
1887	my $rmp = parse_random_map_params $exit->msg;	2539	my $rmp = parse_random_map_params $exit->msg;
1888		2540
1889	if ($exit->map) {	2541	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2542	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2543	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2544	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2545	$rmp->{origin_y} = $exit->y;
1894	}	2546	}
1895		2547
1896	$rmp->{random_seed} ||= $exit->random_seed;	2548	$rmp->{random_seed} ||= $exit->random_seed;
1897		2549
1898	my $data = cf::to_json $rmp;	2550	my $data = cf::to_json $rmp;
1899	my $md5 = Digest::MD5::md5_hex $data;	2551	my $md5 = Digest::MD5::md5_hex $data;
		2552	my $meta = "$RANDOMDIR/$md5.meta";
1900		2553
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2554	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2555	aio_write $fh, 0, (length $data), $data, 0;
		2556	undef $fh;
		2557	aio_rename "$meta~", $meta;
1903		2558
1904	$exit->slaying ("?random/$md5");	2559	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2560	$exit->msg (undef);
1906	}	2561	}
1907	}	2562	}
…		…
1909	sub cf::object::player::enter_exit {	2564	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2565	my ($self, $exit) = @_;
1911		2566
1912	return unless $self->type == cf::PLAYER;	2567	return unless $self->type == cf::PLAYER;
1913		2568
		2569	if ($exit->slaying eq "/!") {
		2570	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2571	# the problem is that $exit might not survive long enough
		2572	# so it needs to be done right now, right here
		2573	cf::sync_job { prepare_random_map $exit };
		2574	}
		2575
		2576	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2577	my $hp = $exit->stats->hp;
		2578	my $sp = $exit->stats->sp;
		2579
1914	$self->enter_link;	2580	$self->enter_link;
1915		2581
		2582	# if exit is damned, update players death & WoR home-position
		2583	$self->contr->savebed ($slaying, $hp, $sp)
		2584	if $exit->flag (FLAG_DAMNED);
		2585
1916	(async {	2586	(async {
		2587	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2588
1917	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2590	unless (eval {
1919	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1920	if $exit->slaying eq "/!";
1921
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1924		2592
1925	1;	2593	1;
1926	}) {	2594	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1928	. "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. "
1929	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1931		2599
1932	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1933	$self->leave_link;	2601	$self->leave_link;
1934	}	2602	}
1935	})->prio (1);	2603	})->prio (1);
…		…
1948		2616
1949	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1951		2619
1952	utf8::encode $text;	2620	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	2622	}
1955		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<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "infobox",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "infobox",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	"c/lookat" => {
		2647	id => "infobox",
		2648	title => "Look",
		2649	reply => undef,
		2650	tooltip => "What you saw there",
		2651	},
		2652	);
		2653
		2654	sub cf::client::send_msg {
		2655	my ($self, $channel, $msg, $color, @extra) = @_;
		2656
		2657	$msg = $self->pl->expand_cfpod ($msg);
		2658
		2659	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2660
		2661	# check predefined channels, for the benefit of C
		2662	if ($CHANNEL{$channel}) {
		2663	$channel = $CHANNEL{$channel};
		2664
		2665	$self->ext_msg (channel_info => $channel)
		2666	if $self->can_msg;
		2667
		2668	$channel = $channel->{id};
		2669
		2670	} elsif (ref $channel) {
		2671	# send meta info to client, if not yet sent
		2672	unless (exists $self->{channel}{$channel->{id}}) {
		2673	$self->{channel}{$channel->{id}} = $channel;
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676	}
		2677
		2678	$channel = $channel->{id};
		2679	}
		2680
		2681	return unless @extra || length $msg;
		2682
		2683	if ($self->can_msg) {
		2684	# default colour, mask it out
		2685	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2686	if $color & cf::NDI_DEF;
		2687
		2688	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2689	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2690	} else {
		2691	if ($color >= 0) {
		2692	# replace some tags by gcfclient-compatible ones
		2693	for ($msg) {
		2694	1 while
		2695	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2696	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2697	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2698	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2699	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2700	}
		2701
		2702	$color &= cf::NDI_COLOR_MASK;
		2703
		2704	utf8::encode $msg;
		2705
		2706	if (0 && $msg =~ /\[/) {
		2707	# COMMAND/INFO
		2708	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2709	} else {
		2710	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2711	$self->send_packet ("drawinfo $color $msg")
		2712	}
		2713	}
		2714	}
		2715	}
		2716
		2717	=item $client->ext_msg ($type, @msg)
		2718
		2719	Sends an ext event to the client.
		2720
		2721	=cut
		2722
		2723	sub cf::client::ext_msg($$@) {
		2724	my ($self, $type, @msg) = @_;
		2725
		2726	if ($self->extcmd == 2) {
		2727	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2728	} elsif ($self->extcmd == 1) { # TODO: remove
		2729	push @msg, msgtype => "event_$type";
		2730	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2731	}
		2732	}
		2733
		2734	=item $client->ext_reply ($msgid, @msg)
		2735
		2736	Sends an ext reply to the client.
		2737
		2738	=cut
		2739
		2740	sub cf::client::ext_reply($$@) {
		2741	my ($self, $id, @msg) = @_;
		2742
		2743	if ($self->extcmd == 2) {
		2744	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2745	} elsif ($self->extcmd == 1) {
		2746	#TODO: version 1, remove
		2747	unshift @msg, msgtype => "reply", msgid => $id;
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2749	}
		2750	}
1956		2751
1957	=item $success = $client->query ($flags, "text", \&cb)	2752	=item $success = $client->query ($flags, "text", \&cb)
1958		2753
1959	Queues a query to the client, calling the given callback with	2754	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2755	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2756	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		2757
1963	Queries can fail, so check the return code. Or don't, as queries will become	2758	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	2759	become reliable at some point in the future.
1965		2760
1966	=cut	2761	=cut
1967		2762
1968	sub cf::client::query {	2763	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	2764	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	2772	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2773	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		2774
1980	$self->send_packet ($self->{query_queue}[0][0])	2775	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	2776	if @{ $self->{query_queue} } == 1;
		2777
		2778	1
1982	}	2779	}
1983		2780
1984	cf::client->attach (	2781	cf::client->attach (
		2782	on_connect => sub {
		2783	my ($ns) = @_;
		2784
		2785	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2786	},
1985	on_reply => sub {	2787	on_reply => sub {
1986	my ($ns, $msg) = @_;	2788	my ($ns, $msg) = @_;
1987		2789
1988	# this weird shuffling is so that direct followup queries	2790	# this weird shuffling is so that direct followup queries
1989	# get handled first	2791	# get handled first
1990	my $queue = delete $ns->{query_queue}	2792	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	2793	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		2794
1993	(shift @$queue)->[1]->($msg);	2795	(shift @$queue)->[1]->($msg);
		2796	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		2797
1995	push @{ $ns->{query_queue} }, @$queue;	2798	push @{ $ns->{query_queue} }, @$queue;
1996		2799
1997	if (@{ $ns->{query_queue} } == @$queue) {	2800	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	2801	if (@$queue) {
…		…
2000	} else {	2803	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2804	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	2805	}
2003	}	2806	}
2004	},	2807	},
		2808	on_exticmd => sub {
		2809	my ($ns, $buf) = @_;
		2810
		2811	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2812
		2813	if (ref $msg) {
		2814	my ($type, $reply, @payload) =
		2815	"ARRAY" eq ref $msg
		2816	? @$msg
		2817	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2818
		2819	my @reply;
		2820
		2821	if (my $cb = $EXTICMD{$type}) {
		2822	@reply = $cb->($ns, @payload);
		2823	}
		2824
		2825	$ns->ext_reply ($reply, @reply)
		2826	if $reply;
		2827
		2828	} else {
		2829	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2830	}
		2831
		2832	cf::override;
		2833	},
2005	);	2834	);
2006		2835
2007	=item $client->async (\&cb)	2836	=item $client->async (\&cb)
2008		2837
2009	Create a new coroutine, running the specified callback. The coroutine will	2838	Create a new coroutine, running the specified callback. The coroutine will
…		…
2050	our $safe = new Safe "safe";	2879	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	2880	our $safe_hole = new Safe::Hole;
2052		2881
2053	$SIG{FPE} = 'IGNORE';	2882	$SIG{FPE} = 'IGNORE';
2054		2883
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2884	$safe->permit_only (Opcode::opset qw(
		2885	:base_core :base_mem :base_orig :base_math
		2886	grepstart grepwhile mapstart mapwhile
		2887	sort time
		2888	));
2056		2889
2057	# here we export the classes and methods available to script code	2890	# here we export the classes and methods available to script code
2058		2891
2059	=pod	2892	=pod
2060		2893
2061	The following fucntions and emthods are available within a safe environment:	2894	The following functions and methods are available within a safe environment:
2062		2895
2063	cf::object contr pay_amount pay_player map	2896	cf::object
		2897	contr pay_amount pay_player map x y force_find force_add
		2898	insert remove name archname title slaying race decrease_ob_nr
		2899
2064	cf::object::player player	2900	cf::object::player
2065	cf::player peaceful	2901	player
2066	cf::map trigger	2902
		2903	cf::player
		2904	peaceful
		2905
		2906	cf::map
		2907	trigger
2067		2908
2068	=cut	2909	=cut
2069		2910
2070	for (	2911	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	2912	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2913	insert remove inv name archname title slaying race
		2914	decrease_ob_nr)],
2072	["cf::object::player" => qw(player)],	2915	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	2916	["cf::player" => qw(peaceful)],
2074	["cf::map" => qw(trigger)],	2917	["cf::map" => qw(trigger)],
2075	) {	2918	) {
2076	no strict 'refs';	2919	no strict 'refs';
…		…
2147	=back	2990	=back
2148		2991
2149	=cut	2992	=cut
2150		2993
2151	#############################################################################	2994	#############################################################################
		2995	# the server's init and main functions
2152		2996
2153	=head2 EXTENSION DATABASE SUPPORT	2997	sub load_facedata($) {
		2998	my ($path) = @_;
2154		2999
2155	Crossfire maintains a very simple database for extension use. It can	3000	# HACK to clear player env face cache, we need some signal framework
2156	currently store anything that can be serialised using Storable, which	3001	# for this (global event?)
2157	excludes objects.	3002	%ext::player_env::MUSIC_FACE_CACHE = ();
2158		3003
2159	The parameter C<$family> should best start with the name of the extension	3004	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2160	using it, it should be unique.
2161		3005
2162	=over 4	3006	warn "loading facedata from $path\n";
2163		3007
2164	=item $hashref = cf::db_get $family	3008	my $facedata;
		3009	0 < aio_load $path, $facedata
		3010	or die "$path: $!";
2165		3011
2166	Return a hashref for use by the extension C<$family>, which can be	3012	$facedata = Coro::Storable::thaw $facedata;
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169		3013
2170	=item $value = cf::db_get $family => $key	3014	$facedata->{version} == 2
		3015	or cf::cleanup "$path: version mismatch, cannot proceed.";
2171		3016
2172	Returns a single value from the database	3017	# patch in the exptable
2173		3018	$facedata->{resource}{"res/exp_table"} = {
2174	=item cf::db_put $family => $hashref	3019	type => FT_RSRC,
2175		3020	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195
2196	{
2197	my $path = cf::localdir . "/database.pst";
2198
2199	sub db_load() {
2200	$DB = stat $path ? Storable::retrieve $path : { };
2201	}
2202
2203	my $pid;
2204
2205	sub db_save() {
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});	3021	};
		3022	cf::cede_to_tick;
2225		3023
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}	3024	{
		3025	my $faces = $facedata->{faceinfo};
2230		3026
2231	sub db_get($;$) {	3027	while (my ($face, $info) = each %$faces) {
2232	@_ >= 2	3028	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2233	? $DB->{$_[0]}{$_[1]}	3029	cf::face::set_visibility $idx, $info->{visibility};
2234	: ($DB->{$_[0]} ||= { })	3030	cf::face::set_magicmap $idx, $info->{magicmap};
2235	}	3031	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3032	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2236		3033
2237	sub db_put($$;$) {	3034	cf::cede_to_tick;
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3035	}
2251	);
2252	}
2253		3036
2254	#############################################################################	3037	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3038	next unless $info->{smooth};
		3039	my $idx = cf::face::find $face
		3040	or next;
		3041	if (my $smooth = cf::face::find $info->{smooth}) {
		3042	cf::face::set_smooth $idx, $smooth;
		3043	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3044	} else {
		3045	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3046	}
2256		3047
2257	sub cfg_load {	3048	cf::cede_to_tick;
		3049	}
		3050	}
		3051
		3052	{
		3053	my $anims = $facedata->{animinfo};
		3054
		3055	while (my ($anim, $info) = each %$anims) {
		3056	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3057	cf::cede_to_tick;
		3058	}
		3059
		3060	cf::anim::invalidate_all; # d'oh
		3061	}
		3062
		3063	{
		3064	# TODO: for gcfclient pleasure, we should give resources
		3065	# that gcfclient doesn't grok a >10000 face index.
		3066	my $res = $facedata->{resource};
		3067
		3068	my $soundconf = delete $res->{"res/sound.conf"};
		3069
		3070	while (my ($name, $info) = each %$res) {
		3071	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3072	my $data;
		3073
		3074	if ($info->{type} & 1) {
		3075	# prepend meta info
		3076
		3077	my $meta = $enc->encode ({
		3078	name => $name,
		3079	%{ $info->{meta} || {} },
		3080	});
		3081
		3082	$data = pack "(w/a*)*", $meta, $info->{data};
		3083	} else {
		3084	$data = $info->{data};
		3085	}
		3086
		3087	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3088	cf::face::set_type $idx, $info->{type};
		3089
		3090	cf::cede_to_tick;
		3091	}
		3092
		3093	if ($soundconf) {
		3094	$soundconf = $enc->decode (delete $soundconf->{data});
		3095
		3096	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3097	my $sound = $soundconf->{compat}[$_]
		3098	or next;
		3099
		3100	my $face = cf::face::find "sound/$sound->[1]";
		3101	cf::sound::set $sound->[0] => $face;
		3102	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3103	}
		3104
		3105	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3106	my $face = cf::face::find "sound/$v";
		3107	cf::sound::set $k => $face;
		3108	}
		3109	}
		3110	}
		3111
		3112	1
		3113	}
		3114
		3115	register_exticmd fx_want => sub {
		3116	my ($ns, $want) = @_;
		3117
		3118	while (my ($k, $v) = each %$want) {
		3119	$ns->fx_want ($k, $v);
		3120	}
		3121	};
		3122
		3123	sub reload_regions {
		3124	# HACK to clear player env face cache, we need some signal framework
		3125	# for this (global event?)
		3126	%ext::player_env::MUSIC_FACE_CACHE = ();
		3127
		3128	load_resource_file "$MAPDIR/regions"
		3129	or die "unable to load regions file\n";
		3130
		3131	for (cf::region::list) {
		3132	$_->{match} = qr/$_->{match}/
		3133	if exists $_->{match};
		3134	}
		3135	}
		3136
		3137	sub reload_facedata {
		3138	load_facedata "$DATADIR/facedata"
		3139	or die "unable to load facedata\n";
		3140	}
		3141
		3142	sub reload_archetypes {
		3143	load_resource_file "$DATADIR/archetypes"
		3144	or die "unable to load archetypes\n";
		3145	#d# NEED to laod twice to resolve forward references
		3146	# this really needs to be done in an extra post-pass
		3147	# (which needs to be synchronous, so solve it differently)
		3148	load_resource_file "$DATADIR/archetypes"
		3149	or die "unable to load archetypes\n";
		3150	}
		3151
		3152	sub reload_treasures {
		3153	load_resource_file "$DATADIR/treasures"
		3154	or die "unable to load treasurelists\n";
		3155	}
		3156
		3157	sub reload_resources {
		3158	warn "reloading resource files...\n";
		3159
		3160	reload_regions;
		3161	reload_facedata;
		3162	#reload_archetypes;#d#
		3163	reload_archetypes;
		3164	reload_treasures;
		3165
		3166	warn "finished reloading resource files\n";
		3167	}
		3168
		3169	sub init {
		3170	reload_resources;
		3171	}
		3172
		3173	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3174	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3175	or return;
2260		3176
2261	local $/;	3177	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3178	*CFG = YAML::Syck::Load <$fh>;
2263		3179
…		…
2277		3193
2278	sub main {	3194	sub main {
2279	# we must not ever block the main coroutine	3195	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3196	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3198	(async {
		3199	$Coro::current->{desc} = "IDLE BUG HANDLER";
2282	async { Event::one_event };	3200	Event::one_event;
		3201	})->prio (Coro::PRIO_MAX);
2283	};	3202	};
2284		3203
2285	cfg_load;	3204	reload_config;
2286	db_load;	3205	db_init;
2287	load_extensions;	3206	load_extensions;
		3207
		3208	$TICK_WATCHER->start;
2288	Event::loop;	3209	Event::loop;
2289	}	3210	}
2290		3211
2291	#############################################################################	3212	#############################################################################
2292	# initialisation and cleanup	3213	# initialisation and cleanup
2293		3214
2294	# install some emergency cleanup handlers	3215	# install some emergency cleanup handlers
2295	BEGIN {	3216	BEGIN {
2296	for my $signal (qw(INT HUP TERM)) {	3217	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3218	Event->signal (
		3219	reentrant => 0,
2298	data => WF_AUTOCANCEL,	3220	data => WF_AUTOCANCEL,
2299	signal => $signal,	3221	signal => $signal,
		3222	prio => 0,
2300	cb => sub {	3223	cb => sub {
2301	cf::cleanup "SIG$signal";	3224	cf::cleanup "SIG$signal";
2302	},	3225	},
2303	);	3226	);
2304	}	3227	}
2305	}	3228	}
2306		3229
		3230	sub write_runtime {
		3231	my $runtime = "$LOCALDIR/runtime";
		3232
		3233	# first touch the runtime file to show we are still running:
		3234	# the fsync below can take a very very long time.
		3235
		3236	IO::AIO::aio_utime $runtime, undef, undef;
		3237
		3238	my $guard = cf::lock_acquire "write_runtime";
		3239
		3240	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3241	or return;
		3242
		3243	my $value = $cf::RUNTIME + 90 + 10;
		3244	# 10 is the runtime save interval, for a monotonic clock
		3245	# 60 allows for the watchdog to kill the server.
		3246
		3247	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3248	and return;
		3249
		3250	# always fsync - this file is important
		3251	aio_fsync $fh
		3252	and return;
		3253
		3254	# touch it again to show we are up-to-date
		3255	aio_utime $fh, undef, undef;
		3256
		3257	close $fh
		3258	or return;
		3259
		3260	aio_rename "$runtime~", $runtime
		3261	and return;
		3262
		3263	warn "runtime file written.\n";
		3264
		3265	1
		3266	}
		3267
2307	sub emergency_save() {	3268	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3269	my $freeze_guard = cf::freeze_mainloop;
2309		3270
2310	warn "enter emergency perl save\n";	3271	warn "enter emergency perl save\n";
2311		3272
2312	cf::sync_job {	3273	cf::sync_job {
2313	# use a peculiar iteration method to avoid tripping on perl	3274	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3275	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3276	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3277	warn "begin emergency player save\n";
2317	for my $login (keys %cf::PLAYER) {	3278	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3279	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3280	$pl->valid or next;
2320	$pl->save;	3281	$pl->save;
…		…
2326	my $map = $cf::MAP{$path} or next;	3287	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3288	$map->valid or next;
2328	$map->save;	3289	$map->save;
2329	}	3290	}
2330	warn "end emergency map save\n";	3291	warn "end emergency map save\n";
		3292
		3293	warn "begin emergency database checkpoint\n";
		3294	BDB::db_env_txn_checkpoint $DB_ENV;
		3295	warn "end emergency database checkpoint\n";
2331	};	3296	};
2332		3297
2333	warn "leave emergency perl save\n";	3298	warn "leave emergency perl save\n";
2334	}	3299	}
2335		3300
		3301	sub post_cleanup {
		3302	my ($make_core) = @_;
		3303
		3304	warn Carp::longmess "post_cleanup backtrace"
		3305	if $make_core;
		3306	}
		3307
2336	sub reload() {	3308	sub do_reload_perl() {
2337	# can/must only be called in main	3309	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3310	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine\n";	3311	warn "can only reload from main coroutine";
2340	return;	3312	return;
2341	}	3313	}
2342		3314
2343	warn "reloading...";	3315	warn "reloading...";
2344		3316
2345	my $guard = freeze_mainloop;	3317	warn "entering sync_job";
		3318
		3319	cf::sync_job {
		3320	cf::write_runtime; # external watchdog should not bark
2346	cf::emergency_save;	3321	cf::emergency_save;
		3322	cf::write_runtime; # external watchdog should not bark
2347		3323
2348	eval {	3324	warn "syncing database to disk";
		3325	BDB::db_env_txn_checkpoint $DB_ENV;
		3326
2349	# if anything goes wrong in here, we should simply crash as we already saved	3327	# if anything goes wrong in here, we should simply crash as we already saved
2350		3328
2351	# cancel all watchers	3329	warn "cancelling all WF_AUTOCANCEL watchers";
2352	for (Event::all_watchers) {	3330	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;	3331	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}	3332	}
2355		3333
		3334	warn "flushing outstanding aio requests";
		3335	for (;;) {
		3336	BDB::flush;
		3337	IO::AIO::flush;
		3338	Coro::cede;
		3339	last unless IO::AIO::nreqs || BDB::nreqs;
		3340	warn "iterate...";
		3341	}
		3342
		3343	++$RELOAD;
		3344
2356	# cancel all extension coros	3345	warn "cancelling all extension coros";
2357	$_->cancel for values %EXT_CORO;	3346	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	3347	%EXT_CORO = ();
2359		3348
2360	# unload all extensions	3349	warn "removing commands";
2361	for (@exts) {	3350	%COMMAND = ();
		3351
		3352	warn "removing ext/exti commands";
		3353	%EXTCMD = ();
		3354	%EXTICMD = ();
		3355
		3356	warn "unloading/nuking all extensions";
		3357	for my $pkg (@EXTS) {
2362	warn "unloading <$_>";	3358	warn "... unloading $pkg";
2363	unload_extension $_;	3359
		3360	if (my $cb = $pkg->can ("unload")) {
		3361	eval {
		3362	$cb->($pkg);
		3363	1
		3364	} or warn "$pkg unloaded, but with errors: $@";
2364	}	3365	}
2365		3366
		3367	warn "... nuking $pkg";
		3368	Symbol::delete_package $pkg;
		3369	}
		3370
2366	# unload all modules loaded from $LIBDIR	3371	warn "unloading all perl modules loaded from $LIBDIR";
2367	while (my ($k, $v) = each %INC) {	3372	while (my ($k, $v) = each %INC) {
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3373	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2369		3374
2370	warn "removing <$k>";	3375	warn "... unloading $k";
2371	delete $INC{$k};	3376	delete $INC{$k};
2372		3377
2373	$k =~ s/\.pm$//;	3378	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;	3379	$k =~ s/\//::/g;
2375		3380
…		…
2378	}	3383	}
2379		3384
2380	Symbol::delete_package $k;	3385	Symbol::delete_package $k;
2381	}	3386	}
2382		3387
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	3388	warn "getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	3389	Symbol::delete_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3390	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		3391
2391	# remove register_script_function callbacks
2392	# TODO
2393
2394	# unload cf.pm "a bit"	3392	warn "unloading cf.pm \"a bit\"";
2395	delete $INC{"cf.pm"};	3393	delete $INC{"cf.pm"};
		3394	delete $INC{"cf/pod.pm"};
2396		3395
2397	# don't, removes xs symbols, too,	3396	# don't, removes xs symbols, too,
2398	# and global variables created in xs	3397	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	3398	#Symbol::delete_package __PACKAGE__;
2400		3399
2401	# reload cf.pm	3400	warn "unload completed, starting to reload now";
		3401
2402	warn "reloading cf.pm";	3402	warn "reloading cf.pm";
2403	require cf;	3403	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2405		3405
2406	# load config and database again	3406	warn "loading config and database again";
2407	cf::cfg_load;	3407	cf::reload_config;
2408	cf::db_load;
2409		3408
2410	# load extensions
2411	warn "load extensions";	3409	warn "loading extensions";
2412	cf::load_extensions;	3410	cf::load_extensions;
2413		3411
2414	# reattach attachments to objects	3412	warn "reattaching attachments to objects/players";
2415	warn "reattach";	3413	_global_reattach; # objects, sockets
2416	_global_reattach;	3414	warn "reattaching attachments to maps";
2417	reattach $_ for values %MAP;	3415	reattach $_ for values %MAP;
2418	};	3416	warn "reattaching attachments to players";
		3417	reattach $_ for values %PLAYER;
2419		3418
2420	if ($@) {	3419	warn "leaving sync_job";
		3420
		3421	1
		3422	} or do {
2421	warn $@;	3423	warn $@;
2422	warn "error while reloading, exiting.";	3424	warn "error while reloading, exiting.";
2423	exit 1;	3425	exit 1;
2424	}	3426	};
2425		3427
2426	warn "reloaded successfully";	3428	warn "reloaded";
2427	};	3429	};
2428		3430
2429	#############################################################################	3431	our $RELOAD_WATCHER; # used only during reload
2430		3432
2431	unless ($LINK_MAP) {	3433	sub reload_perl() {
2432	$LINK_MAP = cf::map::new;	3434	# doing reload synchronously and two reloads happen back-to-back,
		3435	# coro crashes during coro_state_free->destroy here.
2433		3436
2434	$LINK_MAP->width (41);	3437	$RELOAD_WATCHER ||= Event->timer (
2435	$LINK_MAP->height (41);	3438	reentrant => 0,
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,	3439	after => 0,
		3440	data => WF_AUTOCANCEL,
2444	cb => sub {	3441	cb => sub {
2445	$_[0]->w->cancel;	3442	do_reload_perl;
2446		3443	undef $RELOAD_WATCHER;
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});	3444	},
2465		3445	);
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	3446	}
2471
2472	register "<global>", __PACKAGE__;
2473		3447
2474	register_command "reload" => sub {	3448	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3449	my ($who, $arg) = @_;
2476		3450
2477	if ($who->flag (FLAG_WIZ)) {	3451	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	3452	$who->message ("reloading server.");
		3453	async {
		3454	$Coro::current->{desc} = "perl_reload";
		3455	reload_perl;
		3456	};
2481	}	3457	}
2482	};	3458	};
2483		3459
2484	unshift @INC, $LIBDIR;	3460	unshift @INC, $LIBDIR;
		3461
		3462	my $bug_warning = 0;
		3463
		3464	our @WAIT_FOR_TICK;
		3465	our @WAIT_FOR_TICK_BEGIN;
		3466
		3467	sub wait_for_tick {
		3468	return unless $TICK_WATCHER->is_active;
		3469	return if $Coro::current == $Coro::main;
		3470
		3471	my $signal = new Coro::Signal;
		3472	push @WAIT_FOR_TICK, $signal;
		3473	$signal->wait;
		3474	}
		3475
		3476	sub wait_for_tick_begin {
		3477	return unless $TICK_WATCHER->is_active;
		3478	return if $Coro::current == $Coro::main;
		3479
		3480	my $signal = new Coro::Signal;
		3481	push @WAIT_FOR_TICK_BEGIN, $signal;
		3482	$signal->wait;
		3483	}
2485		3484
2486	$TICK_WATCHER = Event->timer (	3485	$TICK_WATCHER = Event->timer (
2487	reentrant => 0,	3486	reentrant => 0,
		3487	parked => 1,
2488	prio => 0,	3488	prio => 0,
2489	at => $NEXT_TICK || $TICK,	3489	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,	3490	data => WF_AUTOCANCEL,
2491	cb => sub {	3491	cb => sub {
		3492	if ($Coro::current != $Coro::main) {
		3493	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3494	unless ++$bug_warning > 10;
		3495	return;
		3496	}
		3497
		3498	$NOW = $tick_start = Event::time;
		3499
2492	cf::server_tick; # one server iteration	3500	cf::server_tick; # one server iteration
		3501
2493	$RUNTIME += $TICK;	3502	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;	3503	$NEXT_TICK += $TICK;
2495		3504
2496	$WAIT_FOR_TICK->broadcast;	3505	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3506	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3507	Coro::async_pool {
		3508	$Coro::current->{desc} = "runtime saver";
		3509	write_runtime
		3510	or warn "ERROR: unable to write runtime file: $!";
		3511	};
		3512	}
		3513
		3514	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3515	$sig->send;
		3516	}
		3517	while (my $sig = shift @WAIT_FOR_TICK) {
		3518	$sig->send;
		3519	}
		3520
		3521	$NOW = Event::time;
2498		3522
2499	# if we are delayed by four ticks or more, skip them all	3523	# if we are delayed by four ticks or more, skip them all
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3524	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2501		3525
2502	$TICK_WATCHER->at ($NEXT_TICK);	3526	$TICK_WATCHER->at ($NEXT_TICK);
2503	$TICK_WATCHER->start;	3527	$TICK_WATCHER->start;
		3528
		3529	$LOAD = ($NOW - $tick_start) / $TICK;
		3530	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3531
		3532	_post_tick;
2504	},	3533	},
2505	);	3534	);
2506		3535
		3536	{
		3537	BDB::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	3538	BDB::max_poll_time $TICK * 0.1;
2508		3539	$BDB_POLL_WATCHER = Event->io (
2509	Event->io (	3540	reentrant => 0,
2510	fd => IO::AIO::poll_fileno,	3541	fd => BDB::poll_fileno,
2511	poll => 'r',	3542	poll => 'r',
2512	prio => 5,	3543	prio => 0,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516
2517	Event->timer (
2518	data => WF_AUTOCANCEL,	3544	data => WF_AUTOCANCEL,
		3545	cb => \&BDB::poll_cb,
		3546	);
		3547
		3548	BDB::set_sync_prepare {
		3549	my $status;
		3550	my $current = $Coro::current;
		3551	(
		3552	sub {
		3553	$status = $!;
		3554	$current->ready; undef $current;
		3555	},
		3556	sub {
		3557	Coro::schedule while defined $current;
		3558	$! = $status;
		3559	},
		3560	)
		3561	};
		3562
		3563	unless ($DB_ENV) {
		3564	$DB_ENV = BDB::db_env_create;
		3565	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3566	| BDB::LOG_AUTOREMOVE, 1);
		3567	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3568	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3569
		3570	cf::sync_job {
		3571	eval {
		3572	BDB::db_env_open
		3573	$DB_ENV,
		3574	$BDBDIR,
		3575	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3576	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3577	0666;
		3578
		3579	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3580	};
		3581
		3582	cf::cleanup "db_env_open(db): $@" if $@;
		3583	};
		3584	}
		3585
		3586	$BDB_DEADLOCK_WATCHER = Event->timer (
2519	after => 0,	3587	after => 3,
2520	interval => 10,	3588	interval => 1,
		3589	hard => 1,
		3590	prio => 0,
		3591	data => WF_AUTOCANCEL,
2521	cb => sub {	3592	cb => sub {
2522	(Coro::unblock_sub {	3593	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2523	write_runtime	3594	},
2524	or warn "ERROR: unable to write runtime file: $!";	3595	);
		3596	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3597	after => 11,
		3598	interval => 60,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
		3602	cb => sub {
		3603	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3604	},
		3605	);
		3606	$BDB_TRICKLE_WATCHER = Event->timer (
		3607	after => 5,
		3608	interval => 10,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3614	},
		3615	);
		3616	}
		3617
		3618	{
		3619	IO::AIO::min_parallel 8;
		3620
		3621	undef $Coro::AIO::WATCHER;
		3622	IO::AIO::max_poll_time $TICK * 0.1;
		3623	$AIO_POLL_WATCHER = Event->io (
		3624	reentrant => 0,
		3625	data => WF_AUTOCANCEL,
		3626	fd => IO::AIO::poll_fileno,
		3627	poll => 'r',
		3628	prio => 0,
		3629	cb => \&IO::AIO::poll_cb,
		3630	);
		3631	}
		3632
		3633	my $_log_backtrace;
		3634
		3635	sub _log_backtrace {
		3636	my ($msg, @addr) = @_;
		3637
		3638	$msg =~ s/\n//;
		3639
		3640	# limit the # of concurrent backtraces
		3641	if ($_log_backtrace < 2) {
		3642	++$_log_backtrace;
		3643	async {
		3644	$Coro::current->{desc} = "abt $msg";
		3645
		3646	my @bt = fork_call {
		3647	@addr = map { sprintf "%x", $_ } @addr;
		3648	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3649	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3650	or die "addr2line: $!";
		3651
		3652	my @funcs;
		3653	my @res = <$fh>;
		3654	chomp for @res;
		3655	while (@res) {
		3656	my ($func, $line) = splice @res, 0, 2, ();
		3657	push @funcs, "[$func] $line";
		3658	}
		3659
		3660	@funcs
		3661	};
		3662
		3663	LOG llevInfo, "[ABT] $msg\n";
		3664	LOG llevInfo, "[ABT] $_\n" for @bt;
		3665	--$_log_backtrace;
2525	})->();	3666	};
		3667	} else {
		3668	LOG llevInfo, "[ABT] $msg\n";
		3669	LOG llevInfo, "[ABT] [suppressed]\n";
2526	},	3670	}
2527	);	3671	}
		3672
		3673	# load additional modules
		3674	use cf::pod;
2528		3675
2529	END { cf::emergency_save }	3676	END { cf::emergency_save }
2530		3677
2531	1	3678	1
2532		3679

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