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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.145 by root, Sun Jan 7 21:54:59 2007 UTC vs.
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 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 Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
51		94
52	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	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
91	every server tick.	136	every server tick.
92		137
93	=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
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
105		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.
		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
122		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
123	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
		198
		199	$Coro::State::DIEHOOK = sub {
		200	warn Carp::longmess $_[0];
		201	Coro::terminate;
		202	};
126		203
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	204	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	205	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	206	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	207	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	208	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		209	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	210	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		211
134	# we bless all objects into (empty) derived classes to force a method lookup	212	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	213	# within the Safe compartment.
136	for my $pkg (qw(	214	for my $pkg (qw(
137	cf::global cf::attachable	215	cf::global cf::attachable
…		…
142	)) {	220	)) {
143	no strict 'refs';	221	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	222	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	223	}
146		224
147	$Event::DIED = sub {	225	$EV::DIED = sub {
148	warn "error in event callback: @_";	226	warn "error in event callback: @_";
149	};	227	};
150		228
151	my %ext_pkg;	229	#############################################################################
152	my @exts;
153	my @hook;
154		230
155	=head2 UTILITY FUNCTIONS	231	=head2 UTILITY FUNCTIONS
156		232
157	=over 4	233	=over 4
158		234
159	=cut	235	=item dumpval $ref
160		236
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	237	=cut
162		238
		239	sub dumpval {
		240	eval {
		241	local $SIG{__DIE__};
		242	my $d;
		243	if (1) {
		244	$d = new Data::Dumper([$_[0]], ["*var"]);
		245	$d->Terse(1);
		246	$d->Indent(2);
		247	$d->Quotekeys(0);
		248	$d->Useqq(1);
		249	#$d->Bless(...);
		250	$d->Seen($_[1]) if @_ > 1;
		251	$d = $d->Dump();
		252	}
		253	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		254	$d
		255	} || "[unable to dump $_[0]: '$@']";
		256	}
		257
163	=item $ref = cf::from_json $json	258	=item $ref = cf::decode_json $json
164		259
165	Converts a JSON string into the corresponding perl data structure.	260	Converts a JSON string into the corresponding perl data structure.
166		261
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	262	=item $json = cf::encode_json $ref
175		263
176	Converts a perl data structure into its JSON representation.	264	Converts a perl data structure into its JSON representation.
177		265
178	=cut	266	=cut
179		267
180	sub to_json($) {	268	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	269
182	JSON::Syck::Dump $_[0]	270	sub encode_json($) { $json_coder->encode ($_[0]) }
183	}	271	sub decode_json($) { $json_coder->decode ($_[0]) }
184		272
185	=item cf::lock_wait $string	273	=item cf::lock_wait $string
186		274
187	Wait until the given lock is available. See cf::lock_acquire.	275	Wait until the given lock is available. See cf::lock_acquire.
188		276
…		…
191	Wait until the given lock is available and then acquires it and returns	279	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	280	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	281	for example when the coroutine gets canceled), the lock is automatically
194	returned.	282	returned.
195		283
		284	Locks are *not* recursive, locking from the same coro twice results in a
		285	deadlocked coro.
		286
196	Lock names should begin with a unique identifier (for example, cf::map::find	287	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	288	uses map_find and cf::map::load uses map_load).
198		289
		290	=item $locked = cf::lock_active $string
		291
		292	Return true if the lock is currently active, i.e. somebody has locked it.
		293
199	=cut	294	=cut
200		295
201	our %LOCK;	296	our %LOCK;
		297	our %LOCKER;#d#
202		298
203	sub lock_wait($) {	299	sub lock_wait($) {
204	my ($key) = @_;	300	my ($key) = @_;
		301
		302	if ($LOCKER{$key} == $Coro::current) {#d#
		303	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		304	return;#d#
		305	}#d#
205		306
206	# wait for lock, if any	307	# wait for lock, if any
207	while ($LOCK{$key}) {	308	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	309	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	310	Coro::schedule;
…		…
215		316
216	# wait, to be sure we are not locked	317	# wait, to be sure we are not locked
217	lock_wait $key;	318	lock_wait $key;
218		319
219	$LOCK{$key} = [];	320	$LOCK{$key} = [];
		321	$LOCKER{$key} = $Coro::current;#d#
220		322
221	Coro::guard {	323	Coro::guard {
		324	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	325	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	326	$_->ready for @{ delete $LOCK{$key} };
224	}	327	}
225	}	328	}
226		329
		330	sub lock_active($) {
		331	my ($key) = @_;
		332
		333	! ! $LOCK{$key}
		334	}
		335
227	sub freeze_mainloop {	336	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	337	return unless $TICK_WATCHER->is_active;
229		338
230	my $guard = Coro::guard { $TICK_WATCHER->start };	339	my $guard = Coro::guard {
		340	$TICK_WATCHER->start;
		341	};
231	$TICK_WATCHER->stop;	342	$TICK_WATCHER->stop;
232	$guard	343	$guard
		344	}
		345
		346	=item cf::periodic $interval, $cb
		347
		348	Like EV::periodic, but randomly selects a starting point so that the actions
		349	get spread over timer.
		350
		351	=cut
		352
		353	sub periodic($$) {
		354	my ($interval, $cb) = @_;
		355
		356	my $start = rand List::Util::min 180, $interval;
		357
		358	EV::periodic $start, $interval, 0, $cb
		359	}
		360
		361	=item cf::get_slot $time[, $priority[, $name]]
		362
		363	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		364	This call blocks and returns only when you have at least C<$time> seconds
		365	of cpu time till the next tick. The slot is only valid till the next cede.
		366
		367	The optional C<$name> can be used to identify the job to run. It might be
		368	used for statistical purposes and should identify the same time-class.
		369
		370	Useful for short background jobs.
		371
		372	=cut
		373
		374	our @SLOT_QUEUE;
		375	our $SLOT_QUEUE;
		376
		377	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		378	$SLOT_QUEUE = Coro::async {
		379	$Coro::current->desc ("timeslot manager");
		380
		381	my $signal = new Coro::Signal;
		382
		383	while () {
		384	next_job:
		385	my $avail = cf::till_tick;
		386	if ($avail > 0.01) {
		387	for (0 .. $#SLOT_QUEUE) {
		388	if ($SLOT_QUEUE[$_][0] < $avail) {
		389	my $job = splice @SLOT_QUEUE, $_, 1, ();
		390	$job->[2]->send;
		391	Coro::cede;
		392	goto next_job;
		393	}
		394	}
		395	}
		396
		397	if (@SLOT_QUEUE) {
		398	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		399	push @cf::WAIT_FOR_TICK, $signal;
		400	$signal->wait;
		401	} else {
		402	Coro::schedule;
		403	}
		404	}
		405	};
		406
		407	sub get_slot($;$$) {
		408	my ($time, $pri, $name) = @_;
		409
		410	$time = $TICK * .6 if $time > $TICK * .6;
		411	my $sig = new Coro::Signal;
		412
		413	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		414	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		415	$SLOT_QUEUE->ready;
		416	$sig->wait;
233	}	417	}
234		418
235	=item cf::async { BLOCK }	419	=item cf::async { BLOCK }
236		420
237	Currently the same as Coro::async_pool, meaning you cannot use	421	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		426
243	BEGIN { *async = \&Coro::async_pool }	427	BEGIN { *async = \&Coro::async_pool }
244		428
245	=item cf::sync_job { BLOCK }	429	=item cf::sync_job { BLOCK }
246		430
247	The design of crossfire+ requires that the main coro ($Coro::main) is	431	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	432	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	433	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		434	acceptable.
250		435
251	If it must be done, put the blocking parts into C<sync_job>. This will run	436	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	437	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	438	server will be frozen during this time, so the block should either finish
254	fast or be very important.	439	fast or be very important.
…		…
257		442
258	sub sync_job(&) {	443	sub sync_job(&) {
259	my ($job) = @_;	444	my ($job) = @_;
260		445
261	if ($Coro::current == $Coro::main) {	446	if ($Coro::current == $Coro::main) {
		447	my $time = EV::time;
		448
262	# this is the main coro, too bad, we have to block	449	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	450	# till the operation succeeds, freezing the server :/
264		451
		452	LOG llevError, Carp::longmess "sync job";#d#
		453
265	# TODO: use suspend/resume instead	454	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	455	# (but this is cancel-safe)
267	my $freeze_guard = freeze_mainloop;	456	my $freeze_guard = freeze_mainloop;
268		457
269	my $busy = 1;	458	my $busy = 1;
270	my @res;	459	my @res;
271		460
272	(async {	461	(async {
		462	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	463	@res = eval { $job->() };
274	warn $@ if $@;	464	warn $@ if $@;
275	undef $busy;	465	undef $busy;
276	})->prio (Coro::PRIO_MAX);	466	})->prio (Coro::PRIO_MAX);
277		467
278	while ($busy) {	468	while ($busy) {
279	Coro::cede or Event::one_event;	469	if (Coro::nready) {
		470	Coro::cede_notself;
		471	} else {
		472	EV::loop EV::LOOP_ONESHOT;
280	}	473	}
		474	}
		475
		476	$time = EV::time - $time;
		477
		478	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		479	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		480
		481	$tick_start += $time; # do not account sync jobs to server load
281		482
282	wantarray ? @res : $res[0]	483	wantarray ? @res : $res[0]
283	} else {	484	} else {
284	# we are in another coroutine, how wonderful, everything just works	485	# we are in another coroutine, how wonderful, everything just works
285		486
…		…
287	}	488	}
288	}	489	}
289		490
290	=item $coro = cf::async_ext { BLOCK }	491	=item $coro = cf::async_ext { BLOCK }
291		492
292	Like async, but this coro is automcatially being canceled when the	493	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	494	extension calling this is being unloaded.
294		495
295	=cut	496	=cut
296		497
297	sub async_ext(&) {	498	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	506	$EXT_CORO{$coro+0} = $coro;
306		507
307	$coro	508	$coro
308	}	509	}
309		510
310	sub write_runtime {	511	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		512
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	513	Executes the given code block with the given arguments in a seperate
314	or return;	514	process, returning the results. Everything must be serialisable with
		515	Coro::Storable. May, of course, block. Note that the executed sub may
		516	never block itself or use any form of event handling.
315		517
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	518	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		519
320	aio_fsync $fh	520	sub fork_call(&@) {
321	and return;	521	my ($cb, @args) = @_;
322		522
323	close $fh	523	# we seemingly have to make a local copy of the whole thing,
324	or return;	524	# otherwise perl prematurely frees the stuff :/
		525	# TODO: investigate and fix (likely this will be rather laborious)
325		526
326	aio_rename "$runtime~", $runtime	527	my @res = Coro::Util::fork_eval {
327	and return;	528	reset_signals;
		529	&$cb
		530	}, @args;
328		531
		532	wantarray ? @res : $res[-1]
		533	}
		534
		535	=item $value = cf::db_get $family => $key
		536
		537	Returns a single value from the environment database.
		538
		539	=item cf::db_put $family => $key => $value
		540
		541	Stores the given C<$value> in the family. It can currently store binary
		542	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		543
		544	=item $db = cf::db_table "name"
		545
		546	Create and/or open a new database table. The string must not be "db" and must be unique
		547	within each server.
		548
		549	=cut
		550
		551	sub db_table($) {
		552	my ($name) = @_;
		553	my $db = BDB::db_create $DB_ENV;
		554
		555	eval {
		556	$db->set_flags (BDB::CHKSUM);
		557
		558	utf8::encode $name;
		559	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		560	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		561	cf::cleanup "db_open(db): $!" if $!;
		562	};
		563	cf::cleanup "db_open(db): $@" if $@;
		564
		565	$db
		566	}
		567
		568	our $DB;
		569
		570	sub db_init {
		571	cf::sync_job {
		572	$DB ||= db_table "db";
		573	};
		574	}
		575
		576	sub db_get($$) {
		577	my $key = "$_[0]/$_[1]";
		578
		579	cf::sync_job {
		580	BDB::db_get $DB, undef, $key, my $data;
		581
		582	$! ? ()
		583	: $data
329	1	584	}
		585	}
		586
		587	sub db_put($$$) {
		588	BDB::dbreq_pri 4;
		589	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		590	}
		591
		592	=item cf::cache $id => [$paths...], $processversion => $process
		593
		594	Generic caching function that returns the value of the resource $id,
		595	caching and regenerating as required.
		596
		597	This function can block.
		598
		599	=cut
		600
		601	sub cache {
		602	my ($id, $src, $processversion, $process) = @_;
		603
		604	my $meta =
		605	join "\x00",
		606	$processversion,
		607	map {
		608	aio_stat $_
		609	and Carp::croak "$_: $!";
		610
		611	($_, (stat _)[7,9])
		612	} @$src;
		613
		614	my $dbmeta = db_get cache => "$id/meta";
		615	if ($dbmeta ne $meta) {
		616	# changed, we may need to process
		617
		618	my @data;
		619	my $md5;
		620
		621	for (0 .. $#$src) {
		622	0 <= aio_load $src->[$_], $data[$_]
		623	or Carp::croak "$src->[$_]: $!";
		624	}
		625
		626	# if processing is expensive, check
		627	# checksum first
		628	if (1) {
		629	$md5 =
		630	join "\x00",
		631	$processversion,
		632	map {
		633	cf::cede_to_tick;
		634	($src->[$_], Digest::MD5::md5_hex $data[$_])
		635	} 0.. $#$src;
		636
		637
		638	my $dbmd5 = db_get cache => "$id/md5";
		639	if ($dbmd5 eq $md5) {
		640	db_put cache => "$id/meta", $meta;
		641
		642	return db_get cache => "$id/data";
		643	}
		644	}
		645
		646	my $t1 = Time::HiRes::time;
		647	my $data = $process->(\@data);
		648	my $t2 = Time::HiRes::time;
		649
		650	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		651
		652	db_put cache => "$id/data", $data;
		653	db_put cache => "$id/md5" , $md5;
		654	db_put cache => "$id/meta", $meta;
		655
		656	return $data;
		657	}
		658
		659	db_get cache => "$id/data"
		660	}
		661
		662	=item cf::datalog type => key => value, ...
		663
		664	Log a datalog packet of the given type with the given key-value pairs.
		665
		666	=cut
		667
		668	sub datalog($@) {
		669	my ($type, %kv) = @_;
		670	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	671	}
331		672
332	=back	673	=back
333		674
334	=cut	675	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		676
456	#############################################################################	677	#############################################################################
457		678
458	=head2 ATTACHABLE OBJECTS	679	=head2 ATTACHABLE OBJECTS
459		680
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	682	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	683	to it. All such attachable objects support the following methods.
463		684
464	In the following description, CLASS can be any of C<global>, C<object>	685	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	686	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	687	Deliantra).
467		688
468	=over 4	689	=over 4
469		690
470	=item $attachable->attach ($attachment, key => $value...)	691	=item $attachable->attach ($attachment, key => $value...)
471		692
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	806	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	807	our @CB_MAP = ();
587		808
588	my %attachment;	809	my %attachment;
589		810
		811	sub cf::attachable::thawer_merge {
		812	# simply override everything except _meta
		813	local $_[0]{_meta};
		814	%{$_[0]} = %{$_[1]};
		815	}
		816
590	sub _attach_cb($$$$) {	817	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	818	my ($registry, $event, $prio, $cb) = @_;
592		819
593	use sort 'stable';	820	use sort 'stable';
594		821
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	855	$registry = $CB_TYPE[$object_type] ||= [];
629		856
630	} elsif ($type eq "subtype") {	857	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	858	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	859	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	860	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		861
635	} elsif ($type eq "package") {	862	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	863	my $pkg = shift @arg;
637		864
638	while (my ($name, $id) = each %cb_id) {	865	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	894	_attach $registry, $klass, @attach;
668	}	895	}
669		896
670	$obj->{$name} = \%arg;	897	$obj->{$name} = \%arg;
671	} else {	898	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	899	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	900	}
674		901
675	$obj->{_attachment}{$name} = undef;	902	$obj->{_attachment}{$name} = undef;
676	}	903	}
677		904
…		…
679	if (ref $_[0]) {	906	if (ref $_[0]) {
680	_object_attach @_;	907	_object_attach @_;
681	} else {	908	} else {
682	_attach shift->_attach_registry, @_;	909	_attach shift->_attach_registry, @_;
683	}	910	}
		911	_recalc_want;
684	};	912	};
685		913
686	# all those should be optimised	914	# all those should be optimised
687	sub cf::attachable::detach {	915	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	916	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	919	delete $obj->{_attachment}{$name};
692	reattach ($obj);	920	reattach ($obj);
693	} else {	921	} else {
694	Carp::croak "cannot, currently, detach class attachments";	922	Carp::croak "cannot, currently, detach class attachments";
695	}	923	}
		924	_recalc_want;
696	};	925	};
697		926
698	sub cf::attachable::attached {	927	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	928	my ($obj, $name) = @_;
700		929
…		…
715	";	944	";
716	die if $@;	945	die if $@;
717	}	946	}
718		947
719	our $override;	948	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	949	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		950
722	sub override {	951	sub override {
723	$override = 1;	952	$override = 1;
724	@invoke_results = ();	953	@INVOKE_RESULTS = (@_);
725	}	954	}
726		955
727	sub do_invoke {	956	sub do_invoke {
728	my $event = shift;	957	my $event = shift;
729	my $callbacks = shift;	958	my $callbacks = shift;
730		959
731	@invoke_results = ();	960	@INVOKE_RESULTS = ();
732		961
733	local $override;	962	local $override;
734		963
735	for (@$callbacks) {	964	for (@$callbacks) {
736	eval { &{$_->[1]} };	965	eval { &{$_->[1]} };
…		…
745	}	974	}
746		975
747	0	976	0
748	}	977	}
749		978
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	979	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		980
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	981	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		982
754	Generate an object-specific event with the given arguments.	983	Generate an object-specific event with the given arguments.
755		984
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	985	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	986	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	987	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		988
760	=back	989	=back
761		990
762	=cut	991	=cut
763		992
764	#############################################################################	993	#############################################################################
765	# object support	994	# object support
		995
		996	sub _object_equal($$);
		997	sub _object_equal($$) {
		998	my ($a, $b) = @_;
		999
		1000	return 0 unless (ref $a) eq (ref $b);
		1001
		1002	if ("HASH" eq ref $a) {
		1003	my @ka = keys %$a;
		1004	my @kb = keys %$b;
		1005
		1006	return 0 if @ka != @kb;
		1007
		1008	for (0 .. $#ka) {
		1009	return 0 unless $ka[$_] eq $kb[$_];
		1010	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1011	}
		1012
		1013	} elsif ("ARRAY" eq ref $a) {
		1014
		1015	return 0 if @$a != @$b;
		1016
		1017	for (0 .. $#$a) {
		1018	return 0 unless _object_equal $a->[$_], $b->[$_];
		1019	}
		1020
		1021	} elsif ($a ne $b) {
		1022	return 0;
		1023	}
		1024
		1025	1
		1026	}
		1027
		1028	our $SLOW_MERGES;#d#
		1029	sub _can_merge {
		1030	my ($ob1, $ob2) = @_;
		1031
		1032	++$SLOW_MERGES;#d#
		1033
		1034	# we do the slow way here
		1035	return _object_equal $ob1, $ob2
		1036	}
766		1037
767	sub reattach {	1038	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1039	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1040	my ($obj) = @_;
		1041
		1042	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1043
771	my $registry = $obj->registry;	1044	my $registry = $obj->registry;
772		1045
773	@$registry = ();	1046	@$registry = ();
774		1047
…		…
789	cf::attachable->attach (	1062	cf::attachable->attach (
790	prio => -1000000,	1063	prio => -1000000,
791	on_instantiate => sub {	1064	on_instantiate => sub {
792	my ($obj, $data) = @_;	1065	my ($obj, $data) = @_;
793		1066
794	$data = from_json $data;	1067	$data = decode_json $data;
795		1068
796	for (@$data) {	1069	for (@$data) {
797	my ($name, $args) = @$_;	1070	my ($name, $args) = @$_;
798		1071
799	$obj->attach ($name, %{$args || {} });	1072	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1088	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1089	my ($filename, $rdata, $objs) = @_;
817		1090
818	sync_job {	1091	sync_job {
819	if (length $$rdata) {	1092	if (length $$rdata) {
		1093	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1094	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1095	$decname, length $$rdata, scalar @$objs;
822		1096
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1099	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1100	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1101	close $fh;
828		1102
829	if (@$objs) {	1103	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1106	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1107	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1108	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1109	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1110	aio_rename "$filename.pst~", "$filename.pst";
837	}	1111	}
838	} else {	1112	} else {
839	aio_unlink "$filename.pst";	1113	aio_unlink "$filename.pst";
…		…
845	}	1119	}
846	} else {	1120	} else {
847	aio_unlink $filename;	1121	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1122	aio_unlink "$filename.pst";
849	}	1123	}
850	}	1124	};
851	}	1125	}
852		1126
853	sub object_freezer_as_string {	1127	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1128	my ($rdata, $objs) = @_;
855		1129
…		…
867	or return;	1141	or return;
868		1142
869	unless (aio_stat "$filename.pst") {	1143	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1144	(aio_load "$filename.pst", $av) >= 0
871	or return;	1145	or return;
		1146
872	$av = eval { (Storable::thaw $av)->{objs} };	1147	my $st = eval { Coro::Storable::thaw $av };
		1148	$av = $st->{objs};
873	}	1149	}
874		1150
		1151	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1152	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1153	$decname, length $data, scalar @{$av || []};
		1154
877	return ($data, $av);	1155	($data, $av)
878	}	1156	}
		1157
		1158	=head2 COMMAND CALLBACKS
		1159
		1160	=over 4
		1161
		1162	=cut
879		1163
880	#############################################################################	1164	#############################################################################
881	# command handling &c	1165	# command handling &c
882		1166
883	=item cf::register_command $name => \&callback($ob,$args);	1167	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1180	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1181	}
898		1182
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1183	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1184
901	Register a callbackf ro execution when the client sends an extcmd packet.	1185	Register a callback for execution when the client sends an (synchronous)
		1186	extcmd packet. Ext commands will be processed in the order they are
		1187	received by the server, like other user commands. The first argument is
		1188	the logged-in player. Ext commands can only be processed after a player
		1189	has logged in successfully.
902		1190
903	If the callback returns something, it is sent back as if reply was being	1191	If the callback returns something, it is sent back as if reply was being
904	called.	1192	called.
905		1193
		1194	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1195
		1196	Register a callback for execution when the client sends an (asynchronous)
		1197	exticmd packet. Exti commands are processed by the server as soon as they
		1198	are received, i.e. out of order w.r.t. other commands. The first argument
		1199	is a client socket. Exti commands can be received anytime, even before
		1200	log-in.
		1201
		1202	If the callback returns something, it is sent back as if reply was being
		1203	called.
		1204
906	=cut	1205	=cut
907		1206
908	sub register_extcmd {	1207	sub register_extcmd {
909	my ($name, $cb) = @_;	1208	my ($name, $cb) = @_;
910		1209
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1210	$EXTCMD{$name} = $cb;
		1211	}
		1212
		1213	sub register_exticmd {
		1214	my ($name, $cb) = @_;
		1215
		1216	$EXTICMD{$name} = $cb;
915	}	1217	}
916		1218
917	cf::player->attach (	1219	cf::player->attach (
918	on_command => sub {	1220	on_command => sub {
919	my ($pl, $name, $params) = @_;	1221	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1230	cf::override;
929	},	1231	},
930	on_extcmd => sub {	1232	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1233	my ($pl, $buf) = @_;
932		1234
933	my $msg = eval { from_json $buf };	1235	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1236
935	if (ref $msg) {	1237	if (ref $msg) {
		1238	my ($type, $reply, @payload) =
		1239	"ARRAY" eq ref $msg
		1240	? @$msg
		1241	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1242
		1243	my @reply;
		1244
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1245	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1246	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1247	}
		1248
		1249	$pl->ext_reply ($reply, @reply)
		1250	if $reply;
		1251
941	} else {	1252	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1253	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1254	}
944		1255
945	cf::override;	1256	cf::override;
946	},	1257	},
947	);	1258	);
948		1259
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1260	sub load_extensions {
		1261	cf::sync_job {
		1262	my %todo;
		1263
1026	for my $ext (<$LIBDIR/*.ext>) {	1264	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1265	next unless -r $path;
1028	eval {	1266
1029	load_extension $ext;	1267	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1268	my $base = $1;
		1269	my $pkg = $1;
		1270	$pkg =~ s/[^[:word:]]/_/g;
		1271	$pkg = "ext::$pkg";
		1272
		1273	open my $fh, "<:utf8", $path
		1274	or die "$path: $!";
		1275
		1276	my $source = do { local $/; <$fh> };
		1277
		1278	my %ext = (
		1279	path => $path,
		1280	base => $base,
		1281	pkg => $pkg,
		1282	);
		1283
		1284	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1285	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1286
		1287	$ext{source} =
		1288	"package $pkg; use strict; use utf8;\n"
		1289	. "#line 1 \"$path\"\n{\n"
		1290	. $source
		1291	. "\n};\n1";
		1292
		1293	$todo{$base} = \%ext;
		1294	}
		1295
		1296	my %done;
		1297	while (%todo) {
		1298	my $progress;
		1299
		1300	while (my ($k, $v) = each %todo) {
		1301	for (split /,\s*/, $v->{meta}{depends}) {
		1302	goto skip
		1303	unless exists $done{$_};
		1304	}
		1305
		1306	warn "... loading '$k' into '$v->{pkg}'\n";
		1307
		1308	unless (eval $v->{source}) {
		1309	my $msg = $@ ? "$v->{path}: $@\n"
		1310	: "$v->{base}: extension inactive.\n";
		1311
		1312	if (exists $v->{meta}{mandatory}) {
		1313	warn $msg;
		1314	warn "mandatory extension failed to load, exiting.\n";
		1315	exit 1;
		1316	}
		1317
		1318	warn $msg;
		1319	}
		1320
		1321	$done{$k} = delete $todo{$k};
		1322	push @EXTS, $v->{pkg};
		1323	$progress = 1;
1030	1	1324	}
1031	} or warn "$ext not loaded: $@";	1325
		1326	skip:
		1327	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1328	unless $progress;
		1329	}
1032	}	1330	};
1033	}	1331	}
1034		1332
1035	#############################################################################	1333	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1334
1038	*cf::mapsupport::on_clean = sub {	1335	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1336
1073	=head2 CORE EXTENSIONS	1337	=head2 CORE EXTENSIONS
1074		1338
1075	Functions and methods that extend core crossfire objects.	1339	Functions and methods that extend core crossfire objects.
1076		1340
1077	=cut	1341	=cut
1078		1342
1079	package cf::player;	1343	package cf::player;
1080		1344
		1345	use Coro::AIO;
		1346
1081	=head3 cf::player	1347	=head3 cf::player
1082		1348
1083	=over 4	1349	=over 4
1084		1350
		1351	=item cf::player::num_playing
		1352
		1353	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1354
		1355	=cut
		1356
		1357	sub num_playing {
		1358	scalar grep
		1359	$_->ob->map
		1360	&& !$_->hidden
		1361	&& !$_->ob->flag (cf::FLAG_WIZ),
		1362	cf::player::list
		1363	}
		1364
1085	=item cf::player::find $login	1365	=item cf::player::find $login
1086		1366
1087	Returns the given player object, loading it if necessary (might block).	1367	Returns the given player object, loading it if necessary (might block).
1088		1368
1089	=cut	1369	=cut
1090		1370
1091	sub playerdir($) {	1371	sub playerdir($) {
1092	cf::localdir	1372	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1373	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1374	}
1098		1375
1099	sub path($) {	1376	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1377	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1378
1102	(playerdir $login) . "/$login.pl"	1379	(playerdir $login) . "/playerdata"
1103	}	1380	}
1104		1381
1105	sub find_active($) {	1382	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1383	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1384	and $cf::PLAYER{$_[0]}->active
…		…
1110		1387
1111	sub exists($) {	1388	sub exists($) {
1112	my ($login) = @_;	1389	my ($login) = @_;
1113		1390
1114	$cf::PLAYER{$login}	1391	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1392	or cf::sync_job { !aio_stat path $login }
1116	}	1393	}
1117		1394
1118	sub find($) {	1395	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1396	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1397	my $login = $_[0];
1121		1398
1122	my $guard = cf::lock_acquire "user_find:$login";	1399	my $guard = cf::lock_acquire "user_find:$login";
1123		1400
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1401	$cf::PLAYER{$_[0]} || do {
		1402	# rename old playerfiles to new ones
		1403	#TODO: remove when no longer required
		1404	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1405	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1406	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1407	aio_unlink +(playerdir $login) . "/$login.pl";
		1408
		1409	my $f = new_from_file cf::object::thawer path $login
		1410	or return;
		1411
		1412	my $pl = cf::player::load_pl $f
		1413	or return;
		1414	local $cf::PLAYER_LOADING{$login} = $pl;
		1415	$f->resolve_delayed_derefs;
		1416	$cf::PLAYER{$login} = $pl
		1417	}
1125	};	1418	}
1126	}	1419	}
1127		1420
1128	sub save($) {	1421	sub save($) {
1129	my ($pl) = @_;	1422	my ($pl) = @_;
1130		1423
…		…
1132		1425
1133	my $path = path $pl;	1426	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1427	my $guard = cf::lock_acquire "user_save:$path";
1135		1428
1136	return if $pl->{deny_save};	1429	return if $pl->{deny_save};
		1430
		1431	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1432	$pl->{last_save} = $cf::RUNTIME;
1138		1433
1139	Coro::cede;
1140	$pl->save_pl ($path);	1434	$pl->save_pl ($path);
1141	Coro::cede;	1435	cf::cede_to_tick;
1142	}	1436	}
1143		1437
1144	sub new($) {	1438	sub new($) {
1145	my ($login) = @_;	1439	my ($login) = @_;
1146		1440
…		…
1152	$cf::PLAYER{$login} = $self;	1446	$cf::PLAYER{$login} = $self;
1153		1447
1154	$self	1448	$self
1155	}	1449	}
1156		1450
		1451	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1452
		1453	=cut
		1454
		1455	sub send_msg {
		1456	my $ns = shift->ns
		1457	or return;
		1458	$ns->send_msg (@_);
		1459	}
		1460
		1461	=item $pl->quit_character
		1462
		1463	Nukes the player without looking back. If logged in, the connection will
		1464	be destroyed. May block for a long time.
		1465
		1466	=cut
		1467
1157	sub quit_character {	1468	sub quit_character {
1158	my ($pl) = @_;	1469	my ($pl) = @_;
		1470
		1471	my $name = $pl->ob->name;
1159		1472
1160	$pl->{deny_save} = 1;	1473	$pl->{deny_save} = 1;
1161	$pl->password ("*"); # this should lock out the player until we nuked the dir	1474	$pl->password ("*"); # this should lock out the player until we nuked the dir
1162		1475
1163	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1476	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1165	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1478	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1166	$pl->ns->destroy if $pl->ns;	1479	$pl->ns->destroy if $pl->ns;
1167		1480
1168	my $path = playerdir $pl;	1481	my $path = playerdir $pl;
1169	my $temp = "$path~$cf::RUNTIME~deleting~";	1482	my $temp = "$path~$cf::RUNTIME~deleting~";
1170	IO::AIO::aio_rename $path, $temp, sub {	1483	aio_rename $path, $temp;
1171	delete $cf::PLAYER{$pl->ob->name};	1484	delete $cf::PLAYER{$pl->ob->name};
1172	$pl->destroy;	1485	$pl->destroy;
1173		1486
		1487	my $prefix = qr<^~\Q$name\E/>;
		1488
		1489	# nuke player maps
		1490	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1491
1174	IO::AIO::aio_rmtree $temp;	1492	IO::AIO::aio_rmtree $temp;
		1493	}
		1494
		1495	=item $pl->kick
		1496
		1497	Kicks a player out of the game. This destroys the connection.
		1498
		1499	=cut
		1500
		1501	sub kick {
		1502	my ($pl, $kicker) = @_;
		1503
		1504	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1505	$pl->killer ("kicked");
		1506	$pl->ns->destroy;
		1507	}
		1508
		1509	=item cf::player::list_logins
		1510
		1511	Returns am arrayref of all valid playernames in the system, can take a
		1512	while and may block, so not sync_job-capable, ever.
		1513
		1514	=cut
		1515
		1516	sub list_logins {
		1517	my $dirs = aio_readdir $PLAYERDIR
		1518	or return [];
		1519
		1520	my @logins;
		1521
		1522	for my $login (@$dirs) {
		1523	my $path = path $login;
		1524
		1525	# a .pst is a dead give-away for a valid player
		1526	unless (-e "$path.pst") {
		1527	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1528	aio_read $fh, 0, 512, my $buf, 0 or next;
		1529	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1530	}
		1531
		1532	utf8::decode $login;
		1533	push @logins, $login;
1175	};	1534	}
1176	}
1177		1535
		1536	\@logins
		1537	}
		1538
		1539	=item $player->maps
		1540
		1541	Returns an arrayref of map paths that are private for this
		1542	player. May block.
		1543
		1544	=cut
		1545
		1546	sub maps($) {
		1547	my ($pl) = @_;
		1548
		1549	$pl = ref $pl ? $pl->ob->name : $pl;
		1550
		1551	my $files = aio_readdir playerdir $pl
		1552	or return;
		1553
		1554	my @paths;
		1555
		1556	for (@$files) {
		1557	utf8::decode $_;
		1558	next if /\.(?:pl|pst)$/;
		1559	next unless /^$PATH_SEP/o;
		1560
		1561	push @paths, cf::map::normalise "~$pl/$_";
		1562	}
		1563
		1564	\@paths
		1565	}
		1566
		1567	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1568
		1569	Expand crossfire pod fragments into protocol xml.
		1570
		1571	=cut
		1572
		1573	use re 'eval';
		1574
		1575	my $group;
		1576	my $interior; $interior = qr{
		1577	# match a pod interior sequence sans C<< >>
		1578	(?:
		1579	\ (.*?)\ (?{ $group = $^N })
		1580	| < (??{$interior}) >
		1581	)
		1582	}x;
		1583
		1584	sub expand_cfpod {
		1585	my ($self, $pod) = @_;
		1586
		1587	my $xml;
		1588
		1589	while () {
		1590	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1591	$group = $1;
		1592
		1593	$group =~ s/&/&amp;/g;
		1594	$group =~ s/</&lt;/g;
		1595
		1596	$xml .= $group;
		1597	} elsif ($pod =~ m%\G
		1598	([BCGHITU])
		1599	<
		1600	(?:
		1601	([^<>]*) (?{ $group = $^N })
		1602	| < $interior >
		1603	)
		1604	>
		1605	%gcsx
		1606	) {
		1607	my ($code, $data) = ($1, $group);
		1608
		1609	if ($code eq "B") {
		1610	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1611	} elsif ($code eq "I") {
		1612	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1613	} elsif ($code eq "U") {
		1614	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1615	} elsif ($code eq "C") {
		1616	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1617	} elsif ($code eq "T") {
		1618	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1619	} elsif ($code eq "G") {
		1620	my ($male, $female) = split /\|/, $data;
		1621	$data = $self->gender ? $female : $male;
		1622	$xml .= expand_cfpod ($self, $data);
		1623	} elsif ($code eq "H") {
		1624	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1625	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1626	"")
		1627	[$self->{hintmode}];
		1628	} else {
		1629	$xml .= "error processing '$code($data)' directive";
		1630	}
		1631	} else {
		1632	if ($pod =~ /\G(.+)/) {
		1633	warn "parse error while expanding $pod (at $1)";
		1634	}
		1635	last;
		1636	}
		1637	}
		1638
		1639	for ($xml) {
		1640	# create single paragraphs (very hackish)
		1641	s/(?<=\S)\n(?=\w)/ /g;
		1642
		1643	# compress some whitespace
		1644	s/\s+\n/\n/g; # ws line-ends
		1645	s/\n\n+/\n/g; # double lines
		1646	s/^\n+//; # beginning lines
		1647	s/\n+$//; # ending lines
		1648	}
		1649
		1650	$xml
		1651	}
		1652
		1653	no re 'eval';
		1654
		1655	sub hintmode {
		1656	$_[0]{hintmode} = $_[1] if @_ > 1;
		1657	$_[0]{hintmode}
		1658	}
		1659
1178	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1179		1661
1180	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1181		1663
1182	=cut	1664	=cut
1183		1665
1184	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1185	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1186		1668
1187	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1188
1189	$self->send ("ext " . cf::to_json \%msg);
1190	}	1670	}
1191		1671
1192	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1193		1712
1194	=back	1713	=back
1195
1196		1714
1197	=head3 cf::map	1715	=head3 cf::map
1198		1716
1199	=over 4	1717	=over 4
1200		1718
…		…
1203	package cf::map;	1721	package cf::map;
1204		1722
1205	use Fcntl;	1723	use Fcntl;
1206	use Coro::AIO;	1724	use Coro::AIO;
1207		1725
		1726	use overload
		1727	'""' => \&as_string,
		1728	fallback => 1;
		1729
1208	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1209	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1210		1732
1211	sub generate_random_map {	1733	sub generate_random_map {
1212	my ($path, $rmp) = @_;	1734	my ($self, $rmp) = @_;
1213
1214	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1215	cf::map::_create_random_map	1736	$self->_create_random_map (
1216	$path,
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1740	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1741	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1742	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1743	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1744	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1745	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1746	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region})	1747	(cf::region::find $rmp->{region}), $rmp->{custom}
		1748	)
		1749	}
		1750
		1751	=item cf::map->register ($regex, $prio)
		1752
		1753	Register a handler for the map path matching the given regex at the
		1754	givne priority (higher is better, built-in handlers have priority 0, the
		1755	default).
		1756
		1757	=cut
		1758
		1759	sub register {
		1760	my (undef, $regex, $prio) = @_;
		1761	my $pkg = caller;
		1762
		1763	no strict;
		1764	push @{"$pkg\::ISA"}, __PACKAGE__;
		1765
		1766	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1767	}
		1768
		1769	# also paths starting with '/'
		1770	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1771
		1772	sub thawer_merge {
		1773	my ($self, $merge) = @_;
		1774
		1775	# we have to keep some variables in memory intact
		1776	local $self->{path};
		1777	local $self->{load_path};
		1778
		1779	$self->SUPER::thawer_merge ($merge);
		1780	}
		1781
		1782	sub normalise {
		1783	my ($path, $base) = @_;
		1784
		1785	$path = "$path"; # make sure its a string
		1786
		1787	$path =~ s/\.map$//;
		1788
		1789	# map plan:
		1790	#
		1791	# /! non-realised random map exit (special hack!)
		1792	# {... are special paths that are not being touched
		1793	# ?xxx/... are special absolute paths
		1794	# ?random/... random maps
		1795	# /... normal maps
		1796	# ~user/... per-player map of a specific user
		1797
		1798	$path =~ s/$PATH_SEP/\//go;
		1799
		1800	# treat it as relative path if it starts with
		1801	# something that looks reasonable
		1802	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1803	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1804
		1805	$base =~ s{[^/]+/?$}{};
		1806	$path = "$base/$path";
		1807	}
		1808
		1809	for ($path) {
		1810	redo if s{//}{/};
		1811	redo if s{/\.?/}{/};
		1812	redo if s{/[^/]+/\.\./}{/};
		1813	}
		1814
		1815	$path
		1816	}
		1817
		1818	sub new_from_path {
		1819	my (undef, $path, $base) = @_;
		1820
		1821	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1822
		1823	$path = normalise $path, $base;
		1824
		1825	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1826	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1827	my $self = bless cf::map::new, $pkg;
		1828	$self->{path} = $path; $self->path ($path);
		1829	$self->init; # pass $1 etc.
		1830	return $self;
		1831	}
		1832	}
		1833
		1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1835	()
		1836	}
		1837
		1838	sub init {
		1839	my ($self) = @_;
		1840
		1841	$self
		1842	}
		1843
		1844	sub as_string {
		1845	my ($self) = @_;
		1846
		1847	"$self->{path}"
		1848	}
		1849
		1850	# the displayed name, this is a one way mapping
		1851	sub visible_name {
		1852	&as_string
		1853	}
		1854
		1855	# the original (read-only) location
		1856	sub load_path {
		1857	my ($self) = @_;
		1858
		1859	"$MAPDIR/$self->{path}.map"
		1860	}
		1861
		1862	# the temporary/swap location
		1863	sub save_path {
		1864	my ($self) = @_;
		1865
		1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1867	"$TMPDIR/$path.map"
		1868	}
		1869
		1870	# the unique path, undef == no special unique path
		1871	sub uniq_path {
		1872	my ($self) = @_;
		1873
		1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1875	"$UNIQUEDIR/$path"
1228	}	1876	}
1229		1877
1230	# and all this just because we cannot iterate over	1878	# and all this just because we cannot iterate over
1231	# all maps in C++...	1879	# all maps in C++...
1232	sub change_all_map_light {	1880	sub change_all_map_light {
…		…
1234		1882
1235	$_->change_map_light ($change)	1883	$_->change_map_light ($change)
1236	for grep $_->outdoor, values %cf::MAP;	1884	for grep $_->outdoor, values %cf::MAP;
1237	}	1885	}
1238		1886
		1887	sub decay_objects {
		1888	my ($self) = @_;
		1889
		1890	return if $self->{deny_reset};
		1891
		1892	$self->do_decay_objects;
		1893	}
		1894
		1895	sub unlink_save {
		1896	my ($self) = @_;
		1897
		1898	utf8::encode (my $save = $self->save_path);
		1899	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1900	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1901	}
		1902
1239	sub try_load_header($) {	1903	sub load_header_from($) {
1240	my ($path) = @_;	1904	my ($self, $path) = @_;
1241		1905
1242	utf8::encode $path;	1906	utf8::encode $path;
1243	aio_open $path, O_RDONLY, 0	1907	my $f = new_from_file cf::object::thawer $path
1244	or return;	1908	or return;
1245		1909
1246	my $map = cf::map::new	1910	$self->_load_header ($f)
1247	or return;	1911	or return;
1248		1912
1249	# for better error messages only, will be overwritten	1913	local $MAP_LOADING{$self->{path}} = $self;
1250	$map->path ($path);	1914	$f->resolve_delayed_derefs;
1251		1915
1252	$map->load_header ($path)	1916	$self->{load_path} = $path;
		1917
		1918	1
		1919	}
		1920
		1921	sub load_header_orig {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->load_path)
		1925	}
		1926
		1927	sub load_header_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->save_path)
		1931	}
		1932
		1933	sub prepare_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->last_access ((delete $self->{last_access})
		1937	|| $cf::RUNTIME); #d#
		1938	# safety
		1939	$self->{instantiate_time} = $cf::RUNTIME
		1940	if $self->{instantiate_time} > $cf::RUNTIME;
		1941	}
		1942
		1943	sub prepare_orig {
		1944	my ($self) = @_;
		1945
		1946	$self->{load_original} = 1;
		1947	$self->{instantiate_time} = $cf::RUNTIME;
		1948	$self->last_access ($cf::RUNTIME);
		1949	$self->instantiate;
		1950	}
		1951
		1952	sub load_header {
		1953	my ($self) = @_;
		1954
		1955	if ($self->load_header_temp) {
		1956	$self->prepare_temp;
		1957	} else {
		1958	$self->load_header_orig
1253	or return;	1959	or return;
		1960	$self->prepare_orig;
		1961	}
1254		1962
1255	$map->{load_path} = $path;	1963	$self->{deny_reset} = 1
		1964	if $self->no_reset;
1256		1965
1257	$map	1966	$self->default_region (cf::region::find_by_path $self->{path})
		1967	unless $self->default_region;
		1968
		1969	1
1258	}	1970	}
1259		1971
1260	sub find;	1972	sub find;
1261	sub find {	1973	sub find {
1262	my ($path, $origin) = @_;	1974	my ($path, $origin) = @_;
1263		1975
1264	#warn "find<$path,$origin>\n";#d#
1265
1266	$path = new cf::path $path, $origin && $origin->path;	1976	$path = normalise $path, $origin && $origin->path;
1267	my $key = $path->as_string;
1268		1977
		1978	cf::lock_wait "map_data:$path";#d#remove
1269	cf::lock_wait "map_find:$key";	1979	cf::lock_wait "map_find:$path";
1270		1980
1271	$cf::MAP{$key} || do {	1981	$cf::MAP{$path} || do {
1272	my $guard = cf::lock_acquire "map_find:$key";	1982	my $guard1 = cf::lock_acquire "map_find:$path";
		1983	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1273		1984
1274	# do it the slow way	1985	my $map = new_from_path cf::map $path
1275	my $map = try_load_header $path->save_path;
1276
1277	Coro::cede;
1278
1279	if ($map) {
1280	$map->last_access ((delete $map->{last_access})
1281	|| $cf::RUNTIME); #d#
1282	# safety
1283	$map->{instantiate_time} = $cf::RUNTIME
1284	if $map->{instantiate_time} > $cf::RUNTIME;
1285	} else {
1286	if (my $rmp = $path->random_map_params) {
1287	$map = generate_random_map $key, $rmp;
1288	} else {
1289	$map = try_load_header $path->load_path;
1290	}
1291
1292	$map or return;	1986	or return;
1293		1987
1294	$map->{load_original} = 1;
1295	$map->{instantiate_time} = $cf::RUNTIME;
1296	$map->last_access ($cf::RUNTIME);
1297	$map->instantiate;
1298
1299	# per-player maps become, after loading, normal maps
1300	$map->per_player (0) if $path->{user_rel};
1301	}
1302
1303	$map->path ($key);
1304	$map->{path} = $path;
1305	$map->{last_save} = $cf::RUNTIME;	1988	$map->{last_save} = $cf::RUNTIME;
1306		1989
1307	Coro::cede;	1990	$map->load_header
		1991	or return;
1308		1992
1309	if ($map->should_reset) {	1993	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1994	# doing this can freeze the server in a sync job, obviously
		1995	#$cf::WAIT_FOR_TICK->wait;
		1996	undef $guard1;
		1997	undef $guard2;
1310	$map->reset;	1998	$map->reset;
1311	undef $guard;
1312	$map = find $path	1999	return find $path;
1313	or return;
1314	}	2000	}
1315		2001
1316	$cf::MAP{$key} = $map	2002	$cf::MAP{$path} = $map
1317	}	2003	}
1318	}	2004	}
		2005
		2006	sub pre_load { }
		2007	sub post_load { }
1319		2008
1320	sub load {	2009	sub load {
1321	my ($self) = @_;	2010	my ($self) = @_;
1322		2011
		2012	local $self->{deny_reset} = 1; # loading can take a long time
		2013
1323	my $path = $self->{path};	2014	my $path = $self->{path};
		2015
		2016	{
1324	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2017	my $guard = cf::lock_acquire "map_data:$path";
1325		2018
		2019	return unless $self->valid;
1326	return if $self->in_memory != cf::MAP_SWAPPED;	2020	return unless $self->in_memory == cf::MAP_SWAPPED;
1327		2021
1328	$self->in_memory (cf::MAP_LOADING);	2022	$self->in_memory (cf::MAP_LOADING);
1329		2023
1330	$self->alloc;	2024	$self->alloc;
1331	$self->load_objects ($self->{load_path}, 1)	2025
		2026	$self->pre_load;
		2027	cf::cede_to_tick;
		2028
		2029	my $f = new_from_file cf::object::thawer $self->{load_path};
		2030	$f->skip_block;
		2031	$self->_load_objects ($f)
1332	or return;	2032	or return;
1333		2033
1334	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2034	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1335	if delete $self->{load_original};	2035	if delete $self->{load_original};
1336		2036
1337	if (my $uniq = $path->uniq_path) {	2037	if (my $uniq = $self->uniq_path) {
1338	utf8::encode $uniq;	2038	utf8::encode $uniq;
1339	if (aio_open $uniq, O_RDONLY, 0) {	2039	unless (aio_stat $uniq) {
		2040	if (my $f = new_from_file cf::object::thawer $uniq) {
1340	$self->clear_unique_items;	2041	$self->clear_unique_items;
1341	$self->load_objects ($uniq, 0);	2042	$self->_load_objects ($f);
		2043	$f->resolve_delayed_derefs;
		2044	}
1342	}	2045	}
1343	}	2046	}
1344		2047
1345	Coro::cede;	2048	$f->resolve_delayed_derefs;
1346		2049
		2050	cf::cede_to_tick;
1347	# now do the right thing for maps	2051	# now do the right thing for maps
1348	$self->link_multipart_objects;	2052	$self->link_multipart_objects;
1349
1350	if ($self->{path}->is_style_map) {
1351	$self->{deny_save} = 1;
1352	$self->{deny_reset} = 1;
1353	} else {
1354	$self->fix_auto_apply;
1355	$self->decay_objects;
1356	$self->update_buttons;
1357	$self->set_darkness_map;
1358	$self->difficulty ($self->estimate_difficulty)	2053	$self->difficulty ($self->estimate_difficulty)
1359	unless $self->difficulty;	2054	unless $self->difficulty;
		2055	cf::cede_to_tick;
		2056
		2057	unless ($self->{deny_activate}) {
		2058	$self->decay_objects;
		2059	$self->fix_auto_apply;
		2060	$self->update_buttons;
		2061	cf::cede_to_tick;
		2062	$self->set_darkness_map;
		2063	cf::cede_to_tick;
1360	$self->activate;	2064	$self->activate;
1361	}	2065	}
1362		2066
1363	Coro::cede;	2067	$self->{last_save} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
1364		2069
1365	$self->in_memory (cf::MAP_IN_MEMORY);	2070	$self->in_memory (cf::MAP_IN_MEMORY);
		2071	}
		2072
		2073	$self->post_load;
		2074	}
		2075
		2076	sub customise_for {
		2077	my ($self, $ob) = @_;
		2078
		2079	return find "~" . $ob->name . "/" . $self->{path}
		2080	if $self->per_player;
		2081
		2082	# return find "?party/" . $ob->name . "/" . $self->{path}
		2083	# if $self->per_party;
		2084
		2085	$self
		2086	}
		2087
		2088	# find and load all maps in the 3x3 area around a map
		2089	sub load_neighbours {
		2090	my ($map) = @_;
		2091
		2092	my @neigh; # diagonal neighbours
		2093
		2094	for (0 .. 3) {
		2095	my $neigh = $map->tile_path ($_)
		2096	or next;
		2097	$neigh = find $neigh, $map
		2098	or next;
		2099	$neigh->load;
		2100
		2101	push @neigh,
		2102	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2103	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2104	}
		2105
		2106	for (grep defined $_->[0], @neigh) {
		2107	my ($path, $origin) = @$_;
		2108	my $neigh = find $path, $origin
		2109	or next;
		2110	$neigh->load;
		2111	}
1366	}	2112	}
1367		2113
1368	sub find_sync {	2114	sub find_sync {
1369	my ($path, $origin) = @_;	2115	my ($path, $origin) = @_;
1370		2116
1371	cf::sync_job { cf::map::find $path, $origin }	2117	cf::sync_job { find $path, $origin }
1372	}	2118	}
1373		2119
1374	sub do_load_sync {	2120	sub do_load_sync {
1375	my ($map) = @_;	2121	my ($map) = @_;
1376		2122
		2123	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2124	if $Coro::current == $Coro::main;
		2125
1377	cf::sync_job { $map->load };	2126	cf::sync_job { $map->load };
		2127	}
		2128
		2129	our %MAP_PREFETCH;
		2130	our $MAP_PREFETCHER = undef;
		2131
		2132	sub find_async {
		2133	my ($path, $origin, $load) = @_;
		2134
		2135	$path = normalise $path, $origin && $origin->{path};
		2136
		2137	if (my $map = $cf::MAP{$path}) {
		2138	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2139	}
		2140
		2141	$MAP_PREFETCH{$path} |= $load;
		2142
		2143	$MAP_PREFETCHER ||= cf::async {
		2144	$Coro::current->{desc} = "map prefetcher";
		2145
		2146	while (%MAP_PREFETCH) {
		2147	while (my ($k, $v) = each %MAP_PREFETCH) {
		2148	if (my $map = find $k) {
		2149	$map->load if $v;
		2150	}
		2151
		2152	delete $MAP_PREFETCH{$k};
		2153	}
		2154	}
		2155	undef $MAP_PREFETCHER;
		2156	};
		2157	$MAP_PREFETCHER->prio (6);
		2158
		2159	()
1378	}	2160	}
1379		2161
1380	sub save {	2162	sub save {
1381	my ($self) = @_;	2163	my ($self) = @_;
1382		2164
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2166
1385	$self->{last_save} = $cf::RUNTIME;	2167	$self->{last_save} = $cf::RUNTIME;
1386		2168
1387	return unless $self->dirty;	2169	return unless $self->dirty;
1388		2170
1389	my $save = $self->{path}->save_path; utf8::encode $save;	2171	my $save = $self->save_path; utf8::encode $save;
1390	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2172	my $uniq = $self->uniq_path; utf8::encode $uniq;
1391		2173
1392	$self->{load_path} = $save;	2174	$self->{load_path} = $save;
1393		2175
1394	return if $self->{deny_save};	2176	return if $self->{deny_save};
1395		2177
1396	local $self->{last_access} = $self->last_access;#d#	2178	local $self->{last_access} = $self->last_access;#d#
1397		2179
1398	cf::async {	2180	cf::async {
		2181	$Coro::current->{desc} = "map player save";
1399	$_->contr->save for $self->players;	2182	$_->contr->save for $self->players;
1400	};	2183	};
1401		2184
1402	if ($uniq) {	2185	if ($uniq) {
1403	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1404	$self->save_objects ($uniq, cf::IO_UNIQUES);	2187	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1405	} else {	2188	} else {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2189	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1407	}	2190	}
1408	}	2191	}
1409		2192
1410	sub swap_out {	2193	sub swap_out {
1411	my ($self) = @_;	2194	my ($self) = @_;
1412		2195
1413	# save first because save cedes	2196	# save first because save cedes
1414	$self->save;	2197	$self->save;
1415		2198
1416	my $lock = cf::lock_acquire "map_data:" . $self->path;	2199	my $lock = cf::lock_acquire "map_data:$self->{path}";
1417		2200
1418	return if $self->players;	2201	return if $self->players;
1419	return if $self->in_memory != cf::MAP_IN_MEMORY;	2202	return if $self->in_memory != cf::MAP_IN_MEMORY;
1420	return if $self->{deny_save};	2203	return if $self->{deny_save};
1421		2204
		2205	$self->in_memory (cf::MAP_SWAPPED);
		2206
		2207	$self->deactivate;
		2208	$_->clear_links_to ($self) for values %cf::MAP;
1422	$self->clear;	2209	$self->clear;
1423	$self->in_memory (cf::MAP_SWAPPED);
1424	}	2210	}
1425		2211
1426	sub reset_at {	2212	sub reset_at {
1427	my ($self) = @_;	2213	my ($self) = @_;
1428		2214
1429	# TODO: safety, remove and allow resettable per-player maps	2215	# TODO: safety, remove and allow resettable per-player maps
1430	return 1e99 if $self->{path}{user_rel};
1431	return 1e99 if $self->{deny_reset};	2216	return 1e99 if $self->{deny_reset};
1432		2217
1433	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2218	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1434	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2219	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1435		2220
…		…
1440	my ($self) = @_;	2225	my ($self) = @_;
1441		2226
1442	$self->reset_at <= $cf::RUNTIME	2227	$self->reset_at <= $cf::RUNTIME
1443	}	2228	}
1444		2229
1445	sub unlink_save {
1446	my ($self) = @_;
1447
1448	utf8::encode (my $save = $self->{path}->save_path);
1449	aioreq_pri 3; IO::AIO::aio_unlink $save;
1450	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1451	}
1452
1453	sub rename {
1454	my ($self, $new_path) = @_;
1455
1456	$self->unlink_save;
1457
1458	delete $cf::MAP{$self->path};
1459	$self->{path} = new cf::path $new_path;
1460	$self->path ($self->{path}->as_string);
1461	$cf::MAP{$self->path} = $self;
1462
1463	$self->save;
1464	}
1465
1466	sub reset {	2230	sub reset {
1467	my ($self) = @_;	2231	my ($self) = @_;
1468		2232
1469	my $lock = cf::lock_acquire "map_data:" . $self->path;	2233	my $lock = cf::lock_acquire "map_data:$self->{path}";
1470		2234
1471	return if $self->players;	2235	return if $self->players;
1472	return if $self->{path}{user_rel};#d#
1473		2236
1474	warn "resetting map ", $self->path;#d#	2237	warn "resetting map ", $self->path;
		2238
		2239	$self->in_memory (cf::MAP_SWAPPED);
		2240
		2241	# need to save uniques path
		2242	unless ($self->{deny_save}) {
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2246	if $uniq;
		2247	}
1475		2248
1476	delete $cf::MAP{$self->path};	2249	delete $cf::MAP{$self->path};
1477		2250
		2251	$self->deactivate;
1478	$_->clear_links_to ($self) for values %cf::MAP;	2252	$_->clear_links_to ($self) for values %cf::MAP;
		2253	$self->clear;
1479		2254
1480	$self->unlink_save;	2255	$self->unlink_save;
1481	$self->destroy;	2256	$self->destroy;
1482	}	2257	}
1483		2258
1484	my $nuke_counter = "aaaa";	2259	my $nuke_counter = "aaaa";
1485		2260
1486	sub nuke {	2261	sub nuke {
1487	my ($self) = @_;	2262	my ($self) = @_;
1488		2263
		2264	{
		2265	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2266
		2267	delete $cf::MAP{$self->path};
		2268
		2269	$self->unlink_save;
		2270
		2271	bless $self, "cf::map";
		2272	delete $self->{deny_reset};
1489	$self->{deny_save} = 1;	2273	$self->{deny_save} = 1;
1490	$self->reset_timeout (1);	2274	$self->reset_timeout (1);
1491	$self->rename ("{nuke}/" . ($nuke_counter++));	2275	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2276
		2277	$cf::MAP{$self->path} = $self;
		2278	}
		2279
1492	$self->reset; # polite request, might not happen	2280	$self->reset; # polite request, might not happen
1493	}	2281	}
1494		2282
1495	sub customise_for {	2283	=item $maps = cf::map::tmp_maps
1496	my ($map, $ob) = @_;
1497		2284
1498	if ($map->per_player) {	2285	Returns an arrayref with all map paths of currently instantiated and saved
1499	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2286	maps. May block.
		2287
		2288	=cut
		2289
		2290	sub tmp_maps() {
1500	}	2291	[
1501		2292	map {
1502	$map	2293	utf8::decode $_;
		2294	/\.map$/
		2295	? normalise $_
		2296	: ()
		2297	} @{ aio_readdir $TMPDIR or [] }
		2298	]
1503	}	2299	}
1504		2300
1505	sub emergency_save {	2301	=item $maps = cf::map::random_maps
1506	my $freeze_guard = cf::freeze_mainloop;
1507		2302
1508	warn "enter emergency perl save\n";	2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	random maps. May block.
1509		2305
1510	cf::sync_job {	2306	=cut
1511	warn "begin emergency player save\n";
1512	$_->save for values %cf::PLAYER;
1513	warn "end emergency player save\n";
1514		2307
1515	warn "begin emergency map save\n";	2308	sub random_maps() {
1516	$_->save for values %cf::MAP;	2309	[
1517	warn "end emergency map save\n";	2310	map {
1518	};	2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise "?random/$_"
		2314	: ()
		2315	} @{ aio_readdir $RANDOMDIR or [] }
		2316	]
		2317	}
1519		2318
1520	warn "leave emergency perl save\n";	2319	=item cf::map::unique_maps
		2320
		2321	Returns an arrayref of paths of all shared maps that have
		2322	instantiated unique items. May block.
		2323
		2324	=cut
		2325
		2326	sub unique_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise $_
		2332	: ()
		2333	} @{ aio_readdir $UNIQUEDIR or [] }
		2334	]
1521	}	2335	}
1522		2336
1523	package cf;	2337	package cf;
1524		2338
1525	=back	2339	=back
1526		2340
		2341	=head3 cf::object
		2342
		2343	=cut
		2344
		2345	package cf::object;
		2346
		2347	=over 4
		2348
		2349	=item $ob->inv_recursive
		2350
		2351	Returns the inventory of the object _and_ their inventories, recursively.
		2352
		2353	=cut
		2354
		2355	sub inv_recursive_;
		2356	sub inv_recursive_ {
		2357	map { $_, inv_recursive_ $_->inv } @_
		2358	}
		2359
		2360	sub inv_recursive {
		2361	inv_recursive_ inv $_[0]
		2362	}
		2363
		2364	=item $ref = $ob->ref
		2365
		2366	creates and returns a persistent reference to an objetc that can be stored as a string.
		2367
		2368	=item $ob = cf::object::deref ($refstring)
		2369
		2370	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2371	even if the object actually exists. May block.
		2372
		2373	=cut
		2374
		2375	sub deref {
		2376	my ($ref) = @_;
		2377
		2378	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2379	my ($uuid, $name) = ($1, $2);
		2380	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2381	or return;
		2382	$pl->ob->uuid eq $uuid
		2383	or return;
		2384
		2385	$pl->ob
		2386	} else {
		2387	warn "$ref: cannot resolve object reference\n";
		2388	undef
		2389	}
		2390	}
		2391
		2392	package cf;
		2393
		2394	=back
1527		2395
1528	=head3 cf::object::player	2396	=head3 cf::object::player
1529		2397
1530	=over 4	2398	=over 4
1531		2399
…		…
1545		2413
1546	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2414	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1547		2415
1548	if ($self->{record_replies}) {	2416	if ($self->{record_replies}) {
1549	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2417	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2418
1550	} else {	2419	} else {
		2420	my $pl = $self->contr;
		2421
		2422	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2423	my $dialog = $pl->{npc_dialog};
		2424	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2425
		2426	} else {
1551	$msg = $npc->name . " says: $msg" if $npc;	2427	$msg = $npc->name . " says: $msg" if $npc;
1552	$self->message ($msg, $flags);	2428	$self->message ($msg, $flags);
		2429	}
1553	}	2430	}
		2431	}
		2432
		2433	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2434
		2435	=cut
		2436
		2437	sub cf::object::send_msg {
		2438	my $pl = shift->contr
		2439	or return;
		2440	$pl->send_msg (@_);
1554	}	2441	}
1555		2442
1556	=item $player_object->may ("access")	2443	=item $player_object->may ("access")
1557		2444
1558	Returns wether the given player is authorized to access resource "access"	2445	Returns wether the given player is authorized to access resource "access"
…		…
1571		2458
1572	=item $player_object->enter_link	2459	=item $player_object->enter_link
1573		2460
1574	Freezes the player and moves him/her to a special map (C<{link}>).	2461	Freezes the player and moves him/her to a special map (C<{link}>).
1575		2462
1576	The player should be reaosnably safe there for short amounts of time. You	2463	The player should be reasonably safe there for short amounts of time. You
1577	I<MUST> call C<leave_link> as soon as possible, though.	2464	I<MUST> call C<leave_link> as soon as possible, though.
1578		2465
		2466	Will never block.
		2467
1579	=item $player_object->leave_link ($map, $x, $y)	2468	=item $player_object->leave_link ($map, $x, $y)
1580		2469
1581	Moves the player out of the specila link map onto the given map. If the	2470	Moves the player out of the special C<{link}> map onto the specified
1582	map is not valid (or omitted), the player will be moved back to the	2471	map. If the map is not valid (or omitted), the player will be moved back
1583	location he/she was before the call to C<enter_link>, or, if that fails,	2472	to the location he/she was before the call to C<enter_link>, or, if that
1584	to the emergency map position.	2473	fails, to the emergency map position.
1585		2474
1586	Might block.	2475	Might block.
1587		2476
1588	=cut	2477	=cut
		2478
		2479	sub link_map {
		2480	unless ($LINK_MAP) {
		2481	$LINK_MAP = cf::map::find "{link}"
		2482	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2483	$LINK_MAP->load;
		2484	}
		2485
		2486	$LINK_MAP
		2487	}
1589		2488
1590	sub cf::object::player::enter_link {	2489	sub cf::object::player::enter_link {
1591	my ($self) = @_;	2490	my ($self) = @_;
1592		2491
1593	$self->deactivate_recursive;	2492	$self->deactivate_recursive;
1594		2493
1595	return if $self->map == $LINK_MAP;	2494	return if UNIVERSAL::isa $self->map, "ext::map_link";
1596		2495
1597	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2496	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1598	if $self->map;	2497	if $self->map && $self->map->{path} ne "{link}";
1599		2498
1600	$self->enter_map ($LINK_MAP, 20, 20);	2499	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1601	}	2500	}
1602		2501
1603	sub cf::object::player::leave_link {	2502	sub cf::object::player::leave_link {
1604	my ($self, $map, $x, $y) = @_;	2503	my ($self, $map, $x, $y) = @_;
		2504
		2505	return unless $self->contr->active;
1605		2506
1606	my $link_pos = delete $self->{_link_pos};	2507	my $link_pos = delete $self->{_link_pos};
1607		2508
1608	unless ($map) {	2509	unless ($map) {
1609	# restore original map position	2510	# restore original map position
…		…
1623	# use -1 or undef as default coordinates, not 0, 0	2524	# use -1 or undef as default coordinates, not 0, 0
1624	($x, $y) = ($map->enter_x, $map->enter_y)	2525	($x, $y) = ($map->enter_x, $map->enter_y)
1625	if $x <=0 && $y <= 0;	2526	if $x <=0 && $y <= 0;
1626		2527
1627	$map->load;	2528	$map->load;
		2529	$map->load_neighbours;
1628		2530
1629	return unless $self->contr->active;	2531	return unless $self->contr->active;
1630	$self->activate_recursive;	2532	$self->activate_recursive;
		2533
		2534	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1631	$self->enter_map ($map, $x, $y);	2535	$self->enter_map ($map, $x, $y);
1632	}	2536	}
1633		2537
1634	cf::player->attach (	2538	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1635	on_logout => sub {
1636	my ($pl) = @_;
1637		2539
1638	# abort map switching before logout	2540	Moves the player to the given map-path and coordinates by first freezing
1639	if ($pl->ob->{_link_pos}) {	2541	her, loading and preparing them map, calling the provided $check callback
1640	cf::sync_job {	2542	that has to return the map if sucecssful, and then unfreezes the player on
1641	$pl->ob->leave_link	2543	the new (success) or old (failed) map position. In either case, $done will
1642	};	2544	be called at the end of this process.
1643	}
1644	},
1645	on_login => sub {
1646	my ($pl) = @_;
1647		2545
1648	# try to abort aborted map switching on player login :)
1649	# should happen only on crashes
1650	if ($pl->ob->{_link_pos}) {
1651	$pl->ob->enter_link;
1652	(async {
1653	# we need this sleep as the login has a concurrent enter_exit running
1654	# and this sleep increases chances of the player not ending up in scorn
1655	$pl->ob->reply (undef,
1656	"There was an internal problem at your last logout, "
1657	. "the server will try to bring you to your intended destination in a second.",
1658	cf::NDI_RED);
1659	Coro::Timer::sleep 1;
1660	$pl->ob->leave_link;
1661	})->prio (2);
1662	}
1663	},
1664	);
1665
1666	=item $player_object->goto ($path, $x, $y)
1667
1668	=cut	2546	=cut
		2547
		2548	our $GOTOGEN;
1669		2549
1670	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1671	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
		2552
		2553	# do generation counting so two concurrent goto's will be executed in-order
		2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1672		2555
1673	$self->enter_link;	2556	$self->enter_link;
1674		2557
1675	(async {	2558	(async {
1676	$path = new cf::path $path;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
1677		2560
1678	my $map = cf::map::find $path->as_string;	2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1679	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
1680		2585	$map = $check->($map) if $check && $map;
1681	# warn "entering ", $map->path, " at ($x, $y)\n"	2586	} else {
1682	# if $map;
1683
1684	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1685		2589
		2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1687	})->prio (1);	2604	})->prio (1);
1688	}	2605	}
1689		2606
1690	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1691		2608
…		…
1693		2610
1694	sub parse_random_map_params {	2611	sub parse_random_map_params {
1695	my ($spec) = @_;	2612	my ($spec) = @_;
1696		2613
1697	my $rmp = { # defaults	2614	my $rmp = { # defaults
1698	xsize => 10,	2615	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2616	ysize => (cf::rndm 15, 40),
		2617	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2618	#layout => string,
1700	};	2619	};
1701		2620
1702	for (split /\n/, $spec) {	2621	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2622	my ($k, $v) = split /\s+/, $_, 2;
1704		2623
…		…
1708	$rmp	2627	$rmp
1709	}	2628	}
1710		2629
1711	sub prepare_random_map {	2630	sub prepare_random_map {
1712	my ($exit) = @_;	2631	my ($exit) = @_;
		2632
		2633	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2634
1714	# all this does is basically replace the /! path by	2635	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2636	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2637	# that depends on the exit object
1717		2638
1718	my $rmp = parse_random_map_params $exit->msg;	2639	my $rmp = parse_random_map_params $exit->msg;
1719		2640
1720	if ($exit->map) {	2641	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2642	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2643	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2644	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2645	$rmp->{origin_y} = $exit->y;
1725	}	2646	}
1726		2647
1727	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1728		2649
1729	my $data = cf::to_json $rmp;	2650	my $data = cf::encode_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
		2652	my $meta = "$RANDOMDIR/$md5.meta";
1731		2653
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
		2656	undef $fh;
		2657	aio_rename "$meta~", $meta;
1734		2658
1735	$exit->slaying ("?random/$md5");	2659	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2660	$exit->msg (undef);
1737	}	2661	}
1738	}	2662	}
…		…
1740	sub cf::object::player::enter_exit {	2664	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2665	my ($self, $exit) = @_;
1742		2666
1743	return unless $self->type == cf::PLAYER;	2667	return unless $self->type == cf::PLAYER;
1744		2668
		2669	if ($exit->slaying eq "/!") {
		2670	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2671	# the problem is that $exit might not survive long enough
		2672	# so it needs to be done right now, right here
		2673	cf::sync_job { prepare_random_map $exit };
		2674	}
		2675
		2676	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2677	my $hp = $exit->stats->hp;
		2678	my $sp = $exit->stats->sp;
		2679
1745	$self->enter_link;	2680	$self->enter_link;
1746		2681
		2682	# if exit is damned, update players death & WoR home-position
		2683	$self->contr->savebed ($slaying, $hp, $sp)
		2684	if $exit->flag (FLAG_DAMNED);
		2685
1747	(async {	2686	(async {
		2687	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2688
1748	$self->deactivate_recursive; # just to be sure	2689	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2690	unless (eval {
1750	prepare_random_map $exit	2691	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2692
1756	1;	2693	1;
1757	}) {	2694	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2695	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2696	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2697	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2698	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2699
1763	warn "ERROR in enter_exit: $@";	2700	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2701	$self->leave_link;
1765	}	2702	}
1766	})->prio (1);	2703	})->prio (1);
…		…
1779		2716
1780	sub cf::client::send_drawinfo {	2717	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2718	my ($self, $text, $flags) = @_;
1782		2719
1783	utf8::encode $text;	2720	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2721	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2722	}
1786		2723
		2724	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2725
		2726	Send a drawinfo or msg packet to the client, formatting the msg for the
		2727	client if neccessary. C<$type> should be a string identifying the type of
		2728	the message, with C<log> being the default. If C<$color> is negative, suppress
		2729	the message unless the client supports the msg packet.
		2730
		2731	=cut
		2732
		2733	# non-persistent channels (usually the info channel)
		2734	our %CHANNEL = (
		2735	"c/identify" => {
		2736	id => "infobox",
		2737	title => "Identify",
		2738	reply => undef,
		2739	tooltip => "Items recently identified",
		2740	},
		2741	"c/examine" => {
		2742	id => "infobox",
		2743	title => "Examine",
		2744	reply => undef,
		2745	tooltip => "Signs and other items you examined",
		2746	},
		2747	"c/book" => {
		2748	id => "infobox",
		2749	title => "Book",
		2750	reply => undef,
		2751	tooltip => "The contents of a note or book",
		2752	},
		2753	"c/lookat" => {
		2754	id => "infobox",
		2755	title => "Look",
		2756	reply => undef,
		2757	tooltip => "What you saw there",
		2758	},
		2759	"c/who" => {
		2760	id => "infobox",
		2761	title => "Players",
		2762	reply => undef,
		2763	tooltip => "Shows players who are currently online",
		2764	},
		2765	"c/body" => {
		2766	id => "infobox",
		2767	title => "Body Parts",
		2768	reply => undef,
		2769	tooltip => "Shows which body parts you posess and are available",
		2770	},
		2771	"c/uptime" => {
		2772	id => "infobox",
		2773	title => "Uptime",
		2774	reply => undef,
		2775	tooltip => "How long the server has been running since last restart",
		2776	},
		2777	"c/mapinfo" => {
		2778	id => "infobox",
		2779	title => "Map Info",
		2780	reply => undef,
		2781	tooltip => "Information related to the maps",
		2782	},
		2783	);
		2784
		2785	sub cf::client::send_msg {
		2786	my ($self, $channel, $msg, $color, @extra) = @_;
		2787
		2788	$msg = $self->pl->expand_cfpod ($msg);
		2789
		2790	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2791
		2792	# check predefined channels, for the benefit of C
		2793	if ($CHANNEL{$channel}) {
		2794	$channel = $CHANNEL{$channel};
		2795
		2796	$self->ext_msg (channel_info => $channel)
		2797	if $self->can_msg;
		2798
		2799	$channel = $channel->{id};
		2800
		2801	} elsif (ref $channel) {
		2802	# send meta info to client, if not yet sent
		2803	unless (exists $self->{channel}{$channel->{id}}) {
		2804	$self->{channel}{$channel->{id}} = $channel;
		2805	$self->ext_msg (channel_info => $channel)
		2806	if $self->can_msg;
		2807	}
		2808
		2809	$channel = $channel->{id};
		2810	}
		2811
		2812	return unless @extra || length $msg;
		2813
		2814	if ($self->can_msg) {
		2815	# default colour, mask it out
		2816	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2817	if $color & cf::NDI_DEF;
		2818
		2819	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2820	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2821	} else {
		2822	if ($color >= 0) {
		2823	# replace some tags by gcfclient-compatible ones
		2824	for ($msg) {
		2825	1 while
		2826	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2827	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2828	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2829	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2830	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2831	}
		2832
		2833	$color &= cf::NDI_COLOR_MASK;
		2834
		2835	utf8::encode $msg;
		2836
		2837	if (0 && $msg =~ /\[/) {
		2838	# COMMAND/INFO
		2839	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2840	} else {
		2841	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2842	$self->send_packet ("drawinfo $color $msg")
		2843	}
		2844	}
		2845	}
		2846	}
		2847
		2848	=item $client->ext_msg ($type, @msg)
		2849
		2850	Sends an ext event to the client.
		2851
		2852	=cut
		2853
		2854	sub cf::client::ext_msg($$@) {
		2855	my ($self, $type, @msg) = @_;
		2856
		2857	if ($self->extcmd == 2) {
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2859	} elsif ($self->extcmd == 1) { # TODO: remove
		2860	push @msg, msgtype => "event_$type";
		2861	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2862	}
		2863	}
		2864
		2865	=item $client->ext_reply ($msgid, @msg)
		2866
		2867	Sends an ext reply to the client.
		2868
		2869	=cut
		2870
		2871	sub cf::client::ext_reply($$@) {
		2872	my ($self, $id, @msg) = @_;
		2873
		2874	if ($self->extcmd == 2) {
		2875	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2876	} elsif ($self->extcmd == 1) {
		2877	#TODO: version 1, remove
		2878	unshift @msg, msgtype => "reply", msgid => $id;
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
1787		2882
1788	=item $success = $client->query ($flags, "text", \&cb)	2883	=item $success = $client->query ($flags, "text", \&cb)
1789		2884
1790	Queues a query to the client, calling the given callback with	2885	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2886	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1792	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2887	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1793		2888
1794	Queries can fail, so check the return code. Or don't, as queries will become	2889	Queries can fail, so check the return code. Or don't, as queries will
1795	reliable at some point in the future.	2890	become reliable at some point in the future.
1796		2891
1797	=cut	2892	=cut
1798		2893
1799	sub cf::client::query {	2894	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	2895	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	2903	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2904	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		2905
1811	$self->send_packet ($self->{query_queue}[0][0])	2906	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	2907	if @{ $self->{query_queue} } == 1;
		2908
		2909	1
1813	}	2910	}
1814		2911
1815	cf::client->attach (	2912	cf::client->attach (
		2913	on_connect => sub {
		2914	my ($ns) = @_;
		2915
		2916	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2917	},
1816	on_reply => sub {	2918	on_reply => sub {
1817	my ($ns, $msg) = @_;	2919	my ($ns, $msg) = @_;
1818		2920
1819	# this weird shuffling is so that direct followup queries	2921	# this weird shuffling is so that direct followup queries
1820	# get handled first	2922	# get handled first
1821	my $queue = delete $ns->{query_queue}	2923	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2924	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2925
1824	(shift @$queue)->[1]->($msg);	2926	(shift @$queue)->[1]->($msg);
		2927	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2928
1826	push @{ $ns->{query_queue} }, @$queue;	2929	push @{ $ns->{query_queue} }, @$queue;
1827		2930
1828	if (@{ $ns->{query_queue} } == @$queue) {	2931	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2932	if (@$queue) {
…		…
1831	} else {	2934	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	2936	}
1834	}	2937	}
1835	},	2938	},
		2939	on_exticmd => sub {
		2940	my ($ns, $buf) = @_;
		2941
		2942	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2943
		2944	if (ref $msg) {
		2945	my ($type, $reply, @payload) =
		2946	"ARRAY" eq ref $msg
		2947	? @$msg
		2948	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2949
		2950	my @reply;
		2951
		2952	if (my $cb = $EXTICMD{$type}) {
		2953	@reply = $cb->($ns, @payload);
		2954	}
		2955
		2956	$ns->ext_reply ($reply, @reply)
		2957	if $reply;
		2958
		2959	} else {
		2960	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2961	}
		2962
		2963	cf::override;
		2964	},
1836	);	2965	);
1837		2966
1838	=item $client->async (\&cb)	2967	=item $client->async (\&cb)
1839		2968
1840	Create a new coroutine, running the specified callback. The coroutine will	2969	Create a new coroutine, running the specified callback. The coroutine will
…		…
1881	our $safe = new Safe "safe";	3010	our $safe = new Safe "safe";
1882	our $safe_hole = new Safe::Hole;	3011	our $safe_hole = new Safe::Hole;
1883		3012
1884	$SIG{FPE} = 'IGNORE';	3013	$SIG{FPE} = 'IGNORE';
1885		3014
1886	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3015	$safe->permit_only (Opcode::opset qw(
		3016	:base_core :base_mem :base_orig :base_math
		3017	grepstart grepwhile mapstart mapwhile
		3018	sort time
		3019	));
1887		3020
1888	# here we export the classes and methods available to script code	3021	# here we export the classes and methods available to script code
1889		3022
1890	=pod	3023	=pod
1891		3024
1892	The following fucntions and emthods are available within a safe environment:	3025	The following functions and methods are available within a safe environment:
1893		3026
1894	cf::object contr pay_amount pay_player map	3027	cf::object
		3028	contr pay_amount pay_player map x y force_find force_add destroy
		3029	insert remove name archname title slaying race decrease_ob_nr
		3030
1895	cf::object::player player	3031	cf::object::player
1896	cf::player peaceful	3032	player
1897	cf::map trigger	3033
		3034	cf::player
		3035	peaceful
		3036
		3037	cf::map
		3038	trigger
1898		3039
1899	=cut	3040	=cut
1900		3041
1901	for (	3042	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	3043	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3044	insert remove inv name archname title slaying race
		3045	decrease_ob_nr destroy)],
1903	["cf::object::player" => qw(player)],	3046	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	3047	["cf::player" => qw(peaceful)],
1905	["cf::map" => qw(trigger)],	3048	["cf::map" => qw(trigger)],
1906	) {	3049	) {
1907	no strict 'refs';	3050	no strict 'refs';
…		…
1978	=back	3121	=back
1979		3122
1980	=cut	3123	=cut
1981		3124
1982	#############################################################################	3125	#############################################################################
		3126	# the server's init and main functions
1983		3127
1984	=head2 EXTENSION DATABASE SUPPORT	3128	sub load_facedata($) {
		3129	my ($path) = @_;
1985		3130
1986	Crossfire maintains a very simple database for extension use. It can	3131	# HACK to clear player env face cache, we need some signal framework
1987	currently store anything that can be serialised using Storable, which	3132	# for this (global event?)
1988	excludes objects.	3133	%ext::player_env::MUSIC_FACE_CACHE = ();
1989		3134
1990	The parameter C<$family> should best start with the name of the extension	3135	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1991	using it, it should be unique.
1992		3136
1993	=over 4	3137	warn "loading facedata from $path\n";
1994		3138
1995	=item $hashref = cf::db_get $family	3139	my $facedata;
		3140	0 < aio_load $path, $facedata
		3141	or die "$path: $!";
1996		3142
1997	Return a hashref for use by the extension C<$family>, which can be	3143	$facedata = Coro::Storable::thaw $facedata;
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000		3144
2001	=item $value = cf::db_get $family => $key	3145	$facedata->{version} == 2
		3146	or cf::cleanup "$path: version mismatch, cannot proceed.";
2002		3147
2003	Returns a single value from the database	3148	# patch in the exptable
2004		3149	$facedata->{resource}{"res/exp_table"} = {
2005	=item cf::db_put $family => $hashref	3150	type => FT_RSRC,
2006		3151	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}
2033
2034	my $pid;
2035
2036	sub db_save() {
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	3152	};
		3153	cf::cede_to_tick;
2056		3154
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}	3155	{
		3156	my $faces = $facedata->{faceinfo};
2061		3157
2062	sub db_get($;$) {	3158	while (my ($face, $info) = each %$faces) {
2063	@_ >= 2	3159	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067		3160
2068	sub db_put($$;$) {	3161	cf::face::set_visibility $idx, $info->{visibility};
2069	if (@_ >= 3) {	3162	cf::face::set_magicmap $idx, $info->{magicmap};
2070	$DB->{$_[0]}{$_[1]} = $_[2];	3163	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2071	} else {	3164	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076		3165
2077	cf::global->attach (	3166	cf::cede_to_tick;
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	3167	}
2082	);
2083	}
2084		3168
2085	#############################################################################	3169	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	3170	next unless $info->{smooth};
2087		3171
2088	sub cfg_load {	3172	my $idx = cf::face::find $face
		3173	or next;
		3174
		3175	if (my $smooth = cf::face::find $info->{smooth}) {
		3176	cf::face::set_smooth $idx, $smooth;
		3177	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3178	} else {
		3179	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3180	}
		3181
		3182	cf::cede_to_tick;
		3183	}
		3184	}
		3185
		3186	{
		3187	my $anims = $facedata->{animinfo};
		3188
		3189	while (my ($anim, $info) = each %$anims) {
		3190	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3191	cf::cede_to_tick;
		3192	}
		3193
		3194	cf::anim::invalidate_all; # d'oh
		3195	}
		3196
		3197	{
		3198	# TODO: for gcfclient pleasure, we should give resources
		3199	# that gcfclient doesn't grok a >10000 face index.
		3200	my $res = $facedata->{resource};
		3201
		3202	while (my ($name, $info) = each %$res) {
		3203	if (defined $info->{type}) {
		3204	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3205	my $data;
		3206
		3207	if ($info->{type} & 1) {
		3208	# prepend meta info
		3209
		3210	my $meta = $enc->encode ({
		3211	name => $name,
		3212	%{ $info->{meta} || {} },
		3213	});
		3214
		3215	$data = pack "(w/a*)*", $meta, $info->{data};
		3216	} else {
		3217	$data = $info->{data};
		3218	}
		3219
		3220	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3221	cf::face::set_type $idx, $info->{type};
		3222	} else {
		3223	$RESOURCE{$name} = $info;
		3224	}
		3225
		3226	cf::cede_to_tick;
		3227	}
		3228	}
		3229
		3230	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3231
		3232	1
		3233	}
		3234
		3235	cf::global->attach (on_resource_update => sub {
		3236	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3237	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3238
		3239	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3240	my $sound = $soundconf->{compat}[$_]
		3241	or next;
		3242
		3243	my $face = cf::face::find "sound/$sound->[1]";
		3244	cf::sound::set $sound->[0] => $face;
		3245	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3246	}
		3247
		3248	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3249	my $face = cf::face::find "sound/$v";
		3250	cf::sound::set $k => $face;
		3251	}
		3252	}
		3253	});
		3254
		3255	register_exticmd fx_want => sub {
		3256	my ($ns, $want) = @_;
		3257
		3258	while (my ($k, $v) = each %$want) {
		3259	$ns->fx_want ($k, $v);
		3260	}
		3261	};
		3262
		3263	sub reload_regions {
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	load_resource_file "$MAPDIR/regions"
		3269	or die "unable to load regions file\n";
		3270
		3271	for (cf::region::list) {
		3272	$_->{match} = qr/$_->{match}/
		3273	if exists $_->{match};
		3274	}
		3275	}
		3276
		3277	sub reload_facedata {
		3278	load_facedata "$DATADIR/facedata"
		3279	or die "unable to load facedata\n";
		3280	}
		3281
		3282	sub reload_archetypes {
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	#d# NEED to laod twice to resolve forward references
		3286	# this really needs to be done in an extra post-pass
		3287	# (which needs to be synchronous, so solve it differently)
		3288	load_resource_file "$DATADIR/archetypes"
		3289	or die "unable to load archetypes\n";
		3290	}
		3291
		3292	sub reload_treasures {
		3293	load_resource_file "$DATADIR/treasures"
		3294	or die "unable to load treasurelists\n";
		3295	}
		3296
		3297	sub reload_resources {
		3298	warn "reloading resource files...\n";
		3299
		3300	reload_regions;
		3301	reload_facedata;
		3302	#reload_archetypes;#d#
		3303	reload_archetypes;
		3304	reload_treasures;
		3305
		3306	warn "finished reloading resource files\n";
		3307	}
		3308
		3309	sub init {
		3310	reload_resources;
		3311	}
		3312
		3313	sub reload_config {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	3314	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	3315	or return;
2091		3316
2092	local $/;	3317	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	3318	*CFG = YAML::Syck::Load <$fh>;
2094		3319
…		…
2097	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3322	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2098	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3323	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2099		3324
2100	if (exists $CFG{mlockall}) {	3325	if (exists $CFG{mlockall}) {
2101	eval {	3326	eval {
2102	$CFG{mlockall} ? &mlockall : &munlockall	3327	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2103	and die "WARNING: m(un)lockall failed: $!\n";	3328	and die "WARNING: m(un)lockall failed: $!\n";
2104	};	3329	};
2105	warn $@ if $@;	3330	warn $@ if $@;
2106	}	3331	}
2107	}	3332	}
2108		3333
2109	sub main {	3334	sub main {
2110	# we must not ever block the main coroutine	3335	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	3336	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3337	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2113	async { Event::one_event };	3338	(async {
		3339	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3340	EV::loop EV::LOOP_ONESHOT;
		3341	})->prio (Coro::PRIO_MAX);
2114	};	3342	};
2115		3343
2116	cfg_load;	3344	reload_config;
2117	db_load;	3345	db_init;
2118	load_extensions;	3346	load_extensions;
		3347
		3348	$TICK_WATCHER->start;
		3349	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2119	Event::loop;	3350	EV::loop;
2120	}	3351	}
2121		3352
2122	#############################################################################	3353	#############################################################################
2123	# initialisation	3354	# initialisation and cleanup
2124		3355
		3356	# install some emergency cleanup handlers
		3357	BEGIN {
		3358	our %SIGWATCHER = ();
		3359	for my $signal (qw(INT HUP TERM)) {
		3360	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3361	cf::cleanup "SIG$signal";
		3362	};
		3363	}
		3364	}
		3365
		3366	sub write_runtime {
		3367	my $runtime = "$LOCALDIR/runtime";
		3368
		3369	# first touch the runtime file to show we are still running:
		3370	# the fsync below can take a very very long time.
		3371
		3372	IO::AIO::aio_utime $runtime, undef, undef;
		3373
		3374	my $guard = cf::lock_acquire "write_runtime";
		3375
		3376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3377	or return;
		3378
		3379	my $value = $cf::RUNTIME + 90 + 10;
		3380	# 10 is the runtime save interval, for a monotonic clock
		3381	# 60 allows for the watchdog to kill the server.
		3382
		3383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3384	and return;
		3385
		3386	# always fsync - this file is important
		3387	aio_fsync $fh
		3388	and return;
		3389
		3390	# touch it again to show we are up-to-date
		3391	aio_utime $fh, undef, undef;
		3392
		3393	close $fh
		3394	or return;
		3395
		3396	aio_rename "$runtime~", $runtime
		3397	and return;
		3398
		3399	warn "runtime file written.\n";
		3400
		3401	1
		3402	}
		3403
		3404	sub emergency_save() {
		3405	my $freeze_guard = cf::freeze_mainloop;
		3406
		3407	warn "enter emergency perl save\n";
		3408
		3409	cf::sync_job {
		3410	# use a peculiar iteration method to avoid tripping on perl
		3411	# refcount bugs in for. also avoids problems with players
		3412	# and maps saved/destroyed asynchronously.
		3413	warn "begin emergency player save\n";
		3414	for my $login (keys %cf::PLAYER) {
		3415	my $pl = $cf::PLAYER{$login} or next;
		3416	$pl->valid or next;
		3417	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3418	$pl->save;
		3419	}
		3420	warn "end emergency player save\n";
		3421
		3422	warn "begin emergency map save\n";
		3423	for my $path (keys %cf::MAP) {
		3424	my $map = $cf::MAP{$path} or next;
		3425	$map->valid or next;
		3426	$map->save;
		3427	}
		3428	warn "end emergency map save\n";
		3429
		3430	warn "begin emergency database checkpoint\n";
		3431	BDB::db_env_txn_checkpoint $DB_ENV;
		3432	warn "end emergency database checkpoint\n";
		3433	};
		3434
		3435	warn "leave emergency perl save\n";
		3436	}
		3437
		3438	sub post_cleanup {
		3439	my ($make_core) = @_;
		3440
		3441	warn Carp::longmess "post_cleanup backtrace"
		3442	if $make_core;
		3443	}
		3444
2125	sub reload() {	3445	sub do_reload_perl() {
2126	# can/must only be called in main	3446	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	3447	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	3448	warn "can only reload from main coroutine";
2129	return;	3449	return;
2130	}	3450	}
2131		3451
2132	warn "reloading...";	3452	warn "reloading...";
2133		3453
2134	my $guard = freeze_mainloop;	3454	warn "entering sync_job";
		3455
		3456	cf::sync_job {
		3457	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	3458	cf::emergency_save;
		3459	cf::write_runtime; # external watchdog should not bark
2136		3460
2137	eval {	3461	warn "syncing database to disk";
		3462	BDB::db_env_txn_checkpoint $DB_ENV;
		3463
2138	# if anything goes wrong in here, we should simply crash as we already saved	3464	# if anything goes wrong in here, we should simply crash as we already saved
2139		3465
2140	# cancel all watchers	3466	warn "flushing outstanding aio requests";
2141	for (Event::all_watchers) {	3467	for (;;) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3468	BDB::flush;
		3469	IO::AIO::flush;
		3470	Coro::cede_notself;
		3471	last unless IO::AIO::nreqs || BDB::nreqs;
		3472	warn "iterate...";
2143	}	3473	}
2144		3474
		3475	++$RELOAD;
		3476
2145	# cancel all extension coros	3477	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	3478	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	3479	%EXT_CORO = ();
2148		3480
2149	# unload all extensions	3481	warn "removing commands";
2150	for (@exts) {	3482	%COMMAND = ();
		3483
		3484	warn "removing ext/exti commands";
		3485	%EXTCMD = ();
		3486	%EXTICMD = ();
		3487
		3488	warn "unloading/nuking all extensions";
		3489	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	3490	warn "... unloading $pkg";
2152	unload_extension $_;	3491
		3492	if (my $cb = $pkg->can ("unload")) {
		3493	eval {
		3494	$cb->($pkg);
		3495	1
		3496	} or warn "$pkg unloaded, but with errors: $@";
2153	}	3497	}
2154		3498
		3499	warn "... nuking $pkg";
		3500	Symbol::delete_package $pkg;
		3501	}
		3502
2155	# unload all modules loaded from $LIBDIR	3503	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	3504	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3505	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		3506
2159	warn "removing <$k>";	3507	warn "... unloading $k";
2160	delete $INC{$k};	3508	delete $INC{$k};
2161		3509
2162	$k =~ s/\.pm$//;	3510	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	3511	$k =~ s/\//::/g;
2164		3512
…		…
2167	}	3515	}
2168		3516
2169	Symbol::delete_package $k;	3517	Symbol::delete_package $k;
2170	}	3518	}
2171		3519
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	3520	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3521	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3522	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		3523
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	3524	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	3525	delete $INC{"cf.pm"};
		3526	delete $INC{"cf/pod.pm"};
2185		3527
2186	# don't, removes xs symbols, too,	3528	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3529	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3530	#Symbol::delete_package __PACKAGE__;
2189		3531
2190	# reload cf.pm	3532	warn "unload completed, starting to reload now";
		3533
2191	warn "reloading cf.pm";	3534	warn "reloading cf.pm";
2192	require cf;	3535	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3536	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		3537
2195	# load config and database again	3538	warn "loading config and database again";
2196	cf::cfg_load;	3539	cf::reload_config;
2197	cf::db_load;
2198		3540
2199	# load extensions
2200	warn "load extensions";	3541	warn "loading extensions";
2201	cf::load_extensions;	3542	cf::load_extensions;
2202		3543
2203	# reattach attachments to objects	3544	warn "reattaching attachments to objects/players";
2204	warn "reattach";	3545	_global_reattach; # objects, sockets
2205	_global_reattach;	3546	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	3547	reattach $_ for values %MAP;
2207	};	3548	warn "reattaching attachments to players";
		3549	reattach $_ for values %PLAYER;
2208		3550
2209	if ($@) {	3551	warn "leaving sync_job";
		3552
		3553	1
		3554	} or do {
2210	warn $@;	3555	warn $@;
2211	warn "error while reloading, exiting.";	3556	warn "error while reloading, exiting.";
2212	exit 1;	3557	exit 1;
2213	}	3558	};
2214		3559
2215	warn "reloaded successfully";	3560	warn "reloaded";
2216	};	3561	};
2217		3562
2218	#############################################################################	3563	our $RELOAD_WATCHER; # used only during reload
2219		3564
2220	unless ($LINK_MAP) {	3565	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	3566	# doing reload synchronously and two reloads happen back-to-back,
		3567	# coro crashes during coro_state_free->destroy here.
2222		3568
2223	$LINK_MAP->width (41);	3569	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2224	$LINK_MAP->height (41);	3570	undef $RELOAD_WATCHER;
2225	$LINK_MAP->alloc;	3571	do_reload_perl;
2226	$LINK_MAP->path ("{link}");	3572	};
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,
2233	cb => sub {
2234	$_[0]->w->cancel;
2235
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});
2254
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3573	}
2260
2261	register "<global>", __PACKAGE__;
2262		3574
2263	register_command "reload" => sub {	3575	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3576	my ($who, $arg) = @_;
2265		3577
2266	if ($who->flag (FLAG_WIZ)) {	3578	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3579	$who->message ("reloading server.");
		3580	async {
		3581	$Coro::current->{desc} = "perl_reload";
		3582	reload_perl;
		3583	};
2270	}	3584	}
2271	};	3585	};
2272		3586
2273	unshift @INC, $LIBDIR;	3587	unshift @INC, $LIBDIR;
2274		3588
2275	$TICK_WATCHER = Event->timer (	3589	my $bug_warning = 0;
2276	reentrant => 0,	3590
2277	prio => 0,	3591	our @WAIT_FOR_TICK;
2278	at => $NEXT_TICK || $TICK,	3592	our @WAIT_FOR_TICK_BEGIN;
2279	data => WF_AUTOCANCEL,	3593
2280	cb => sub {	3594	sub wait_for_tick {
		3595	return unless $TICK_WATCHER->is_active;
		3596	return if $Coro::current == $Coro::main;
		3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	sub wait_for_tick_begin {
		3604	return unless $TICK_WATCHER->is_active;
		3605	return if $Coro::current == $Coro::main;
		3606
		3607	my $signal = new Coro::Signal;
		3608	push @WAIT_FOR_TICK_BEGIN, $signal;
		3609	$signal->wait;
		3610	}
		3611
		3612	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3613	if ($Coro::current != $Coro::main) {
		3614	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3615	unless ++$bug_warning > 10;
		3616	return;
		3617	}
		3618
		3619	$NOW = $tick_start = EV::now;
		3620
2281	cf::server_tick; # one server iteration	3621	cf::server_tick; # one server iteration
		3622
2282	$RUNTIME += $TICK;	3623	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	3624	$NEXT_TICK = $_[0]->at;
2284		3625
2285	# if we are delayed by four ticks or more, skip them all	3626	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3627	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2287		3628	Coro::async_pool {
2288	$TICK_WATCHER->at ($NEXT_TICK);	3629	$Coro::current->{desc} = "runtime saver";
2289	$TICK_WATCHER->start;
2290	},
2291	);
2292
2293	IO::AIO::max_poll_time $TICK * 0.2;
2294
2295	Event->io (
2296	fd => IO::AIO::poll_fileno,
2297	poll => 'r',
2298	prio => 5,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,
2305	after => 0,
2306	interval => 10,
2307	cb => sub {
2308	(Coro::unblock_sub {
2309	write_runtime	3630	write_runtime
2310	or warn "ERROR: unable to write runtime file: $!";	3631	or warn "ERROR: unable to write runtime file: $!";
2311	})->();	3632	};
2312	},	3633	}
2313	);	3634
		3635	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3636	$sig->send;
		3637	}
		3638	while (my $sig = shift @WAIT_FOR_TICK) {
		3639	$sig->send;
		3640	}
		3641
		3642	$LOAD = ($NOW - $tick_start) / $TICK;
		3643	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3644
		3645	_post_tick;
		3646	};
		3647	$TICK_WATCHER->priority (EV::MAXPRI);
		3648
		3649	{
		3650	# configure BDB
		3651
		3652	BDB::min_parallel 8;
		3653	BDB::max_poll_reqs $TICK * 0.1;
		3654	$Coro::BDB::WATCHER->priority (1);
		3655
		3656	unless ($DB_ENV) {
		3657	$DB_ENV = BDB::db_env_create;
		3658	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3659	| BDB::LOG_AUTOREMOVE, 1);
		3660	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3661	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3662
		3663	cf::sync_job {
		3664	eval {
		3665	BDB::db_env_open
		3666	$DB_ENV,
		3667	$BDBDIR,
		3668	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3669	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3670	0666;
		3671
		3672	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3673	};
		3674
		3675	cf::cleanup "db_env_open(db): $@" if $@;
		3676	};
		3677	}
		3678
		3679	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3680	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3681	};
		3682	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3683	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3684	};
		3685	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3686	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3687	};
		3688	}
		3689
		3690	{
		3691	# configure IO::AIO
		3692
		3693	IO::AIO::min_parallel 8;
		3694	IO::AIO::max_poll_time $TICK * 0.1;
		3695	$Coro::AIO::WATCHER->priority (1);
		3696	}
		3697
		3698	my $_log_backtrace;
		3699
		3700	sub _log_backtrace {
		3701	my ($msg, @addr) = @_;
		3702
		3703	$msg =~ s/\n//;
		3704
		3705	# limit the # of concurrent backtraces
		3706	if ($_log_backtrace < 2) {
		3707	++$_log_backtrace;
		3708	async {
		3709	$Coro::current->{desc} = "abt $msg";
		3710
		3711	my @bt = fork_call {
		3712	@addr = map { sprintf "%x", $_ } @addr;
		3713	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3714	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3715	or die "addr2line: $!";
		3716
		3717	my @funcs;
		3718	my @res = <$fh>;
		3719	chomp for @res;
		3720	while (@res) {
		3721	my ($func, $line) = splice @res, 0, 2, ();
		3722	push @funcs, "[$func] $line";
		3723	}
		3724
		3725	@funcs
		3726	};
		3727
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] $_\n" for @bt;
		3730	--$_log_backtrace;
		3731	};
		3732	} else {
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] [suppressed]\n";
		3735	}
		3736	}
		3737
		3738	# load additional modules
		3739	use cf::pod;
2314		3740
2315	END { cf::emergency_save }	3741	END { cf::emergency_save }
2316		3742
2317	1	3743	1
2318		3744

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