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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.397 by root, Mon Nov 19 15:47:14 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
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 4.1 ();
		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::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
46		87
47	our %CFG;	88	our %CFG;
48		89
49	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	91	our $RUNTIME;
51		92
52	our %MAP; # all maps	93	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	94	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	95	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	96
56	our %EXT_CORO;	97	# used to convert map paths into valid unix filenames by replacing / by ∕
		98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
57		103
58	binmode STDOUT;	104	binmode STDOUT;
59	binmode STDERR;	105	binmode STDERR;
60		106
61	# read virtual server time, if available	107	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
66	}	112	}
67		113
68	mkdir cf::localdir;	114	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		116
74	# a special map that is always available	117	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		118
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	119	sub cf::map::normalise;
78		120
79	#############################################################################	121	#############################################################################
80		122
81	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
82		124
…		…
89	=item $cf::RUNTIME	131	=item $cf::RUNTIME
90		132
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	134	every server tick.
93		135
94	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		139
96	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
98		144
99	=item $cf::NOW	145	=item $cf::NOW
100		146
101	The time of the last (current) server tick.	147	The time of the last (current) server tick.
102		148
103	=item $cf::TICK	149	=item $cf::TICK
104		150
105	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
106		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
107	=item %cf::CFG	163	=item %cf::CFG
108		164
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	166	from wherever your confdir points to.
		167
		168	=item cf::wait_for_tick, cf::wait_for_tick_begin
		169
		170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		171	returns directly I<after> the tick processing (and consequently, can only wake one process
		172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
111		179
112	=back	180	=back
113		181
114	=cut	182	=cut
115		183
116	BEGIN {	184	BEGIN {
117	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	186	my $msg = join "", @_;
119	utf8::encode $msg;
120		187
121	$msg .= "\n"	188	$msg .= "\n"
122	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
123		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		192
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
143	)) {	213	)) {
144	no strict 'refs';	214	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	216	}
147		217
148	$Event::DIED = sub {	218	$EV::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
163		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
183	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
		280	Lock names should begin with a unique identifier (for example, cf::map::find
		281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
		287	=cut
		288
		289	our %LOCK;
		290	our %LOCKER;#d#
		291
		292	sub lock_wait($) {
		293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
		299
		300	# wait for lock, if any
		301	while ($LOCK{$key}) {
		302	push @{ $LOCK{$key} }, $Coro::current;
		303	Coro::schedule;
		304	}
184	}	305	}
		306
		307	sub lock_acquire($) {
		308	my ($key) = @_;
		309
		310	# wait, to be sure we are not locked
		311	lock_wait $key;
		312
		313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
		315
		316	Coro::guard {
		317	delete $LOCKER{$key};#d#
		318	# wake up all waiters, to be on the safe side
		319	$_->ready for @{ delete $LOCK{$key} };
		320	}
		321	}
		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
		329	sub freeze_mainloop {
		330	return unless $TICK_WATCHER->is_active;
		331
		332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
		335	$TICK_WATCHER->stop;
		336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
		410	}
		411
		412	=item cf::async { BLOCK }
		413
		414	Currently the same as Coro::async_pool, meaning you cannot use
		415	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		416	thing you are allowed to do is call C<prio> on it.
		417
		418	=cut
		419
		420	BEGIN { *async = \&Coro::async_pool }
185		421
186	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
187		423
188	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
191		428
192	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
195	fast or be very important.	432	fast or be very important.
…		…
198		435
199	sub sync_job(&) {	436	sub sync_job(&) {
200	my ($job) = @_;	437	my ($job) = @_;
201		438
202	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
203	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
205		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
206	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	448	# (but this is cancel-safe)
208	local $FREEZE = 1;	449	my $freeze_guard = freeze_mainloop;
209		450
210	my $busy = 1;	451	my $busy = 1;
211	my @res;	452	my @res;
212		453
213	(Coro::async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	456	@res = eval { $job->() };
215	warn $@ if $@;	457	warn $@ if $@;
216	undef $busy;	458	undef $busy;
217	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
218		460
219	while ($busy) {	461	while ($busy) {
		462	if (Coro::nready) {
220	Coro::cede_notself;	463	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
222	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
223		475
224	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
225	} else {	477	} else {
226	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
227		479
228	$job->()	480	$job->()
229	}	481	}
230	}	482	}
231		483
232	=item $coro = cf::coro { BLOCK }	484	=item $coro = cf::async_ext { BLOCK }
233		485
234	Creates and returns a new coro. This coro is automcatially being canceled	486	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	487	extension calling this is being unloaded.
236		488
237	=cut	489	=cut
238		490
239	sub coro(&) {	491	sub async_ext(&) {
240	my $cb = shift;	492	my $cb = shift;
241		493
242	my $coro; $coro = async {	494	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		495
249	$coro->on_destroy (sub {	496	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	497	delete $EXT_CORO{$coro+0};
251	});	498	});
252	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
253		500
254	$coro	501	$coro
255	}	502	}
256		503
257	sub write_runtime {	504	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		505
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
261	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
262		510
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	511	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		512
267	aio_fsync $fh	513	sub fork_call(&@) {
268	and return;	514	my ($cb, @args) = @_;
269		515
270	close $fh	516	# we seemingly have to make a local copy of the whole thing,
271	or return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
272		519
273	aio_rename "$runtime~", $runtime	520	my @res = Coro::Util::fork_eval {
274	and return;	521	reset_signals;
		522	&$cb
		523	}, @args;
275		524
		525	wantarray ? @res : $res[-1]
		526	}
		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
276	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	664	}
278		665
279	=back	666	=back
280		667
281	=cut	668	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		669
403	#############################################################################	670	#############################################################################
404		671
405	=head2 ATTACHABLE OBJECTS	672	=head2 ATTACHABLE OBJECTS
406		673
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
410		677
411	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
412	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	680	Deliantra).
414		681
415	=over 4	682	=over 4
416		683
417	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
418		685
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	799	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	800	our @CB_MAP = ();
534		801
535	my %attachment;	802	my %attachment;
536		803
		804	sub cf::attachable::thawer_merge {
		805	# simply override everything except _meta
		806	local $_[0]{_meta};
		807	%{$_[0]} = %{$_[1]};
		808	}
		809
537	sub _attach_cb($$$$) {	810	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	811	my ($registry, $event, $prio, $cb) = @_;
539		812
540	use sort 'stable';	813	use sort 'stable';
541		814
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
576		849
577	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		854
582	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	856	my $pkg = shift @arg;
584		857
585	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
615	}	888	}
616		889
617	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
618	} else {	891	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	893	}
621		894
622	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
623	}	896	}
624		897
…		…
626	if (ref $_[0]) {	899	if (ref $_[0]) {
627	_object_attach @_;	900	_object_attach @_;
628	} else {	901	} else {
629	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
630	}	903	}
		904	_recalc_want;
631	};	905	};
632		906
633	# all those should be optimised	907	# all those should be optimised
634	sub cf::attachable::detach {	908	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
639	reattach ($obj);	913	reattach ($obj);
640	} else {	914	} else {
641	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
642	}	916	}
		917	_recalc_want;
643	};	918	};
644		919
645	sub cf::attachable::attached {	920	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
647		922
…		…
662	";	937	";
663	die if $@;	938	die if $@;
664	}	939	}
665		940
666	our $override;	941	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		943
669	sub override {	944	sub override {
670	$override = 1;	945	$override = 1;
671	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
672	}	947	}
673		948
674	sub do_invoke {	949	sub do_invoke {
675	my $event = shift;	950	my $event = shift;
676	my $callbacks = shift;	951	my $callbacks = shift;
677		952
678	@invoke_results = ();	953	@INVOKE_RESULTS = ();
679		954
680	local $override;	955	local $override;
681		956
682	for (@$callbacks) {	957	for (@$callbacks) {
683	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
700		975
701	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
702		977
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
704	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		981
707	=back	982	=back
708		983
709	=cut	984	=cut
710		985
711	#############################################################################	986	#############################################################################
712	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
713		1030
714	sub reattach {	1031	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1033	my ($obj) = @_;
		1034
		1035	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1036
718	my $registry = $obj->registry;	1037	my $registry = $obj->registry;
719		1038
720	@$registry = ();	1039	@$registry = ();
721		1040
…		…
762	sub object_freezer_save {	1081	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
764		1083
765	sync_job {	1084	sync_job {
766	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
769		1089
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1094	close $fh;
775		1095
776	if (@$objs) {	1096	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1102	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
784	}	1104	}
785	} else {	1105	} else {
786	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
792	}	1112	}
793	} else {	1113	} else {
794	aio_unlink $filename;	1114	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
796	}	1116	}
797	}	1117	};
798	}	1118	}
799		1119
800	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
802		1122
…		…
814	or return;	1134	or return;
815		1135
816	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
818	or return;	1138	or return;
		1139
819	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
820	}	1142	}
821		1143
		1144	utf8::decode (my $decname = $filename);
		1145	warn sprintf "loading %s (%d,%d)\n",
		1146	$decname, length $data, scalar @{$av || []};
		1147
822	return ($data, $av);	1148	($data, $av)
823	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
824		1156
825	#############################################################################	1157	#############################################################################
826	# command handling &c	1158	# command handling &c
827		1159
828	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1174	}
843		1175
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1177
846	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
847		1183
848	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
849	called.	1185	called.
850		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
851	=cut	1198	=cut
852		1199
853	sub register_extcmd {	1200	sub register_extcmd {
854	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
855		1202
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
860	}	1210	}
861		1211
862	cf::player->attach (	1212	cf::player->attach (
863	on_command => sub {	1213	on_command => sub {
864	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1223	cf::override;
874	},	1224	},
875	on_extcmd => sub {	1225	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
877		1227
878	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1229
880	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
886	} else {	1245	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1247	}
889		1248
890	cf::override;	1249	cf::override;
891	},	1250	},
892	);	1251	);
893		1252
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
		1257	for my $path (<$LIBDIR/*.ext>) {
		1258	next unless -r $path;
		1259
		1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
		1317	}
		1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
		1323	};
		1324	}
		1325
		1326	#############################################################################
		1327
		1328	=back
		1329
		1330	=head2 CORE EXTENSIONS
		1331
		1332	Functions and methods that extend core crossfire objects.
		1333
		1334	=cut
		1335
		1336	package cf::player;
		1337
		1338	use Coro::AIO;
		1339
		1340	=head3 cf::player
		1341
		1342	=over 4
		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
		1358	=item cf::player::find $login
		1359
		1360	Returns the given player object, loading it if necessary (might block).
		1361
		1362	=cut
		1363
		1364	sub playerdir($) {
		1365	"$PLAYERDIR/"
		1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1367	}
		1368
		1369	sub path($) {
		1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1371
		1372	(playerdir $login) . "/playerdata"
		1373	}
		1374
		1375	sub find_active($) {
		1376	$cf::PLAYER{$_[0]}
		1377	and $cf::PLAYER{$_[0]}->active
		1378	and $cf::PLAYER{$_[0]}
		1379	}
		1380
		1381	sub exists($) {
		1382	my ($login) = @_;
		1383
		1384	$cf::PLAYER{$login}
		1385	or cf::sync_job { !aio_stat path $login }
		1386	}
		1387
		1388	sub find($) {
		1389	return $cf::PLAYER{$_[0]} || do {
		1390	my $login = $_[0];
		1391
		1392	my $guard = cf::lock_acquire "user_find:$login";
		1393
		1394	$cf::PLAYER{$_[0]} || do {
		1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
		1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
		1409	$cf::PLAYER{$login} = $pl
		1410	}
		1411	}
		1412	}
		1413
		1414	sub save($) {
		1415	my ($pl) = @_;
		1416
		1417	return if $pl->{deny_save};
		1418
		1419	my $path = path $pl;
		1420	my $guard = cf::lock_acquire "user_save:$path";
		1421
		1422	return if $pl->{deny_save};
		1423
		1424	aio_mkdir playerdir $pl, 0770;
		1425	$pl->{last_save} = $cf::RUNTIME;
		1426
		1427	$pl->save_pl ($path);
		1428	cf::cede_to_tick;
		1429	}
		1430
		1431	sub new($) {
		1432	my ($login) = @_;
		1433
		1434	my $self = create;
		1435
		1436	$self->ob->name ($login);
		1437	$self->{deny_save} = 1;
		1438
		1439	$cf::PLAYER{$login} = $self;
		1440
		1441	$self
		1442	}
		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
		1454	=item $pl->quit_character
		1455
		1456	Nukes the player without looking back. If logged in, the connection will
		1457	be destroyed. May block for a long time.
		1458
		1459	=cut
		1460
		1461	sub quit_character {
		1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
		1465
		1466	$pl->{deny_save} = 1;
		1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1468
		1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1470	$pl->deactivate;
		1471	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1472	$pl->ns->destroy if $pl->ns;
		1473
		1474	my $path = playerdir $pl;
		1475	my $temp = "$path~$cf::RUNTIME~deleting~";
		1476	aio_rename $path, $temp;
		1477	delete $cf::PLAYER{$pl->ob->name};
		1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
		1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
		1500	}
		1501
		1502	=item cf::player::list_logins
		1503
		1504	Returns am arrayref of all valid playernames in the system, can take a
		1505	while and may block, so not sync_job-capable, ever.
		1506
		1507	=cut
		1508
		1509	sub list_logins {
		1510	my $dirs = aio_readdir $PLAYERDIR
		1511	or return [];
		1512
		1513	my @logins;
		1514
		1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
		1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1521	aio_read $fh, 0, 512, my $buf, 0 or next;
		1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
		1524
		1525	utf8::decode $login;
		1526	push @logins, $login;
		1527	}
		1528
		1529	\@logins
		1530	}
		1531
		1532	=item $player->maps
		1533
		1534	Returns an arrayref of map paths that are private for this
		1535	player. May block.
		1536
		1537	=cut
		1538
		1539	sub maps($) {
		1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
		1543
		1544	my $files = aio_readdir playerdir $pl
		1545	or return;
		1546
		1547	my @paths;
		1548
		1549	for (@$files) {
		1550	utf8::decode $_;
		1551	next if /\.(?:pl|pst)$/;
		1552	next unless /^$PATH_SEP/o;
		1553
		1554	push @paths, cf::map::normalise "~$pl/$_";
		1555	}
		1556
		1557	\@paths
		1558	}
		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
		1653	=item $player->ext_reply ($msgid, @msg)
		1654
		1655	Sends an ext reply to the player.
		1656
		1657	=cut
		1658
		1659	sub ext_reply($$@) {
		1660	my ($self, $id, @msg) = @_;
		1661
		1662	$self->ns->ext_reply ($id, @msg)
		1663	}
		1664
		1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
901	my ($path) = @_;	1692	my ($path) = @_;
902		1693
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1694	my ($match, $specificity);
904	my $base = $1;
905	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";
908		1695
909	warn "loading '$path' into '$pkg'\n";	1696	for my $region (list) {
910		1697	if ($region->{match} && $path =~ $region->{match}) {
911	open my $fh, "<:utf8", $path	1698	($match, $specificity) = ($region, $region->specificity)
912	or die "$path: $!";	1699	if $region->specificity > $specificity;
913		1700	}
914	my $source =
915	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })
918	. "\n};\n1";
919
920	eval $source
921	or die $@ ? "$path: $@\n"
922	: "extension disabled.\n";
923
924	push @exts, $pkg;
925	$ext_pkg{$base} = $pkg;
926
927	# no strict 'refs';
928	# @{"$pkg\::ISA"} = ext::;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	1701	}
943		1702
944	# remove commands	1703	$match
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}
969
970	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;
973	eval {
974	load_extension $ext;
975	1
976	} or warn "$ext not loaded: $@";
977	}
978	}
979
980	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017
1018	=head2 CORE EXTENSIONS
1019
1020	Functions and methods that extend core crossfire objects.
1021
1022	=head3 cf::player
1023
1024	=over 4
1025
1026	=item cf::player::exists $login
1027
1028	Returns true when the given account exists.
1029
1030	=cut
1031
1032	sub cf::player::exists($) {
1033	cf::player::find $_[0]
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1035	}
1036
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038
1039	Sends an ext reply to the player.
1040
1041	=cut
1042
1043	sub cf::player::ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;
1045
1046	$msg{msgid} = $id;
1047
1048	$self->send ("ext " . to_json \%msg);
1049	}	1704	}
1050		1705
1051	=back	1706	=back
1052
1053		1707
1054	=head3 cf::map	1708	=head3 cf::map
1055		1709
1056	=over 4	1710	=over 4
1057		1711
…		…
1060	package cf::map;	1714	package cf::map;
1061		1715
1062	use Fcntl;	1716	use Fcntl;
1063	use Coro::AIO;	1717	use Coro::AIO;
1064		1718
		1719	use overload
		1720	'""' => \&as_string,
		1721	fallback => 1;
		1722
1065	our $MAX_RESET = 7200;	1723	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1724	our $DEFAULT_RESET = 3000;
1067		1725
1068	sub generate_random_map {	1726	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1727	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1729	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
		1742	}
		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
		1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1868	"$UNIQUEDIR/$path"
1085	}	1869	}
1086		1870
1087	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1088	# all maps in C++...	1872	# all maps in C++...
1089	sub change_all_map_light {	1873	sub change_all_map_light {
1090	my ($change) = @_;	1874	my ($change) = @_;
1091		1875
1092	$_->change_map_light ($change) for values %cf::MAP;	1876	$_->change_map_light ($change)
		1877	for grep $_->outdoor, values %cf::MAP;
1093	}	1878	}
1094		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
		1888	sub unlink_save {
		1889	my ($self) = @_;
		1890
		1891	utf8::encode (my $save = $self->save_path);
		1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1894	}
		1895
1095	sub try_load_header($) {	1896	sub load_header_from($) {
1096	my ($path) = @_;	1897	my ($self, $path) = @_;
1097		1898
1098	utf8::encode $path;	1899	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1100	or return;	1901	or return;
1101		1902
1102	my $map = cf::map::new	1903	$self->_load_header ($f)
1103	or return;	1904	or return;
1104		1905
1105	$map->load_header ($path)	1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
		1908
		1909	$self->{load_path} = $path;
		1910
		1911	1
		1912	}
		1913
		1914	sub load_header_orig {
		1915	my ($self) = @_;
		1916
		1917	$self->load_header_from ($self->load_path)
		1918	}
		1919
		1920	sub load_header_temp {
		1921	my ($self) = @_;
		1922
		1923	$self->load_header_from ($self->save_path)
		1924	}
		1925
		1926	sub prepare_temp {
		1927	my ($self) = @_;
		1928
		1929	$self->last_access ((delete $self->{last_access})
		1930	|| $cf::RUNTIME); #d#
		1931	# safety
		1932	$self->{instantiate_time} = $cf::RUNTIME
		1933	if $self->{instantiate_time} > $cf::RUNTIME;
		1934	}
		1935
		1936	sub prepare_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->{load_original} = 1;
		1940	$self->{instantiate_time} = $cf::RUNTIME;
		1941	$self->last_access ($cf::RUNTIME);
		1942	$self->instantiate;
		1943	}
		1944
		1945	sub load_header {
		1946	my ($self) = @_;
		1947
		1948	if ($self->load_header_temp) {
		1949	$self->prepare_temp;
		1950	} else {
		1951	$self->load_header_orig
1106	or return;	1952	or return;
		1953	$self->prepare_orig;
		1954	}
1107		1955
1108	$map->{load_path} = $path;	1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
1109		1958
1110	$map	1959	$self->default_region (cf::region::find_by_path $self->{path})
1111	}	1960	unless $self->default_region;
1112		1961
		1962	1
		1963	}
		1964
		1965	sub find;
1113	sub find_map {	1966	sub find {
1114	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1115		1968
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
		1972	cf::lock_wait "map_find:$path";
		1973
1121	$cf::MAP{$key} || do {	1974	$cf::MAP{$path} || do {
1122	# do it the slow way	1975	my $guard1 = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1124		1977
1125	if ($map) {	1978	my $map = new_from_path cf::map $path
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1979	or return;
1137		1980
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->last_access ($cf::RUNTIME);	1981	$map->{last_save} = $cf::RUNTIME;
1149		1982
1150	if ($map->should_reset) {	1983	$map->load_header
		1984	or return;
		1985
		1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1987	# doing this can freeze the server in a sync job, obviously
		1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1151	$map->reset;	1991	$map->reset;
1152	$map = find_map $path;	1992	return find $path;
1153	}	1993	}
1154		1994
1155	$cf::MAP{$key} = $map	1995	$cf::MAP{$path} = $map
1156	}	1996	}
1157	}	1997	}
		1998
		1999	sub pre_load { }
		2000	sub post_load { }
1158		2001
1159	sub load {	2002	sub load {
1160	my ($self) = @_;	2003	my ($self) = @_;
1161		2004
1162	return if $self->in_memory != cf::MAP_SWAPPED;	2005	local $self->{deny_reset} = 1; # loading can take a long time
1163
1164	$self->in_memory (cf::MAP_LOADING);
1165		2006
1166	my $path = $self->{path};	2007	my $path = $self->{path};
1167		2008
		2009	{
		2010	my $guard = cf::lock_acquire "map_data:$path";
		2011
		2012	return unless $self->valid;
		2013	return unless $self->in_memory == cf::MAP_SWAPPED;
		2014
		2015	$self->in_memory (cf::MAP_LOADING);
		2016
1168	$self->alloc;	2017	$self->alloc;
1169	$self->load_objects ($self->{load_path}, 1)	2018
		2019	$self->pre_load;
		2020	cf::cede_to_tick;
		2021
		2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1170	or return;	2025	or return;
1171		2026
1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173	if delete $self->{load_original};	2028	if delete $self->{load_original};
1174		2029
1175	if (my $uniq = $path->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1176	utf8::encode $uniq;	2031	utf8::encode $uniq;
1177	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1178	$self->clear_unique_items;	2034	$self->clear_unique_items;
1179	$self->load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1180	}	2038	}
1181	}	2039	}
1182		2040
		2041	$f->resolve_delayed_derefs;
		2042
		2043	cf::cede_to_tick;
1183	# now do the right thing for maps	2044	# now do the right thing for maps
1184	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1185
1186	if ($self->{path}->is_style_map) {
1187	$self->{deny_save} = 1;
1188	$self->{deny_reset} = 1;
1189	} else {
1190	$self->fix_auto_apply;
1191	$self->decay_objects;
1192	$self->update_buttons;
1193	$self->set_darkness_map;
1194	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1195	unless $self->difficulty;	2047	unless $self->difficulty;
		2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1196	$self->activate;	2057	$self->activate;
1197	}	2058	}
1198		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
1199	$self->in_memory (cf::MAP_IN_MEMORY);	2063	$self->in_memory (cf::MAP_IN_MEMORY);
1200	}	2064	}
1201		2065
1202	sub load_map_sync {	2066	$self->post_load;
		2067	}
		2068
		2069	sub customise_for {
		2070	my ($self, $ob) = @_;
		2071
		2072	return find "~" . $ob->name . "/" . $self->{path}
		2073	if $self->per_player;
		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
		2078	$self
		2079	}
		2080
		2081	# find and load all maps in the 3x3 area around a map
		2082	sub load_neighbours {
		2083	my ($map) = @_;
		2084
		2085	my @neigh; # diagonal neighbours
		2086
		2087	for (0 .. 3) {
		2088	my $neigh = $map->tile_path ($_)
		2089	or next;
		2090	$neigh = find $neigh, $map
		2091	or next;
		2092	$neigh->load;
		2093
		2094	push @neigh,
		2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2097	}
		2098
		2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
		2101	my $neigh = find $path, $origin
		2102	or next;
		2103	$neigh->load;
		2104	}
		2105	}
		2106
		2107	sub find_sync {
1203	my ($path, $origin) = @_;	2108	my ($path, $origin) = @_;
1204		2109
1205	#warn "load_map_sync<$path, $origin>\n";#d#	2110	cf::sync_job { find $path, $origin }
		2111	}
1206		2112
1207	cf::sync_job {	2113	sub do_load_sync {
1208	my $map = cf::map::find_map $path, $origin	2114	my ($map) = @_;
1209	or return;	2115
1210	$map->load;	2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1211	$map	2117	if $Coro::current == $Coro::main;
		2118
		2119	cf::sync_job { $map->load };
		2120	}
		2121
		2122	our %MAP_PREFETCH;
		2123	our $MAP_PREFETCHER = undef;
		2124
		2125	sub find_async {
		2126	my ($path, $origin, $load) = @_;
		2127
		2128	$path = normalise $path, $origin && $origin->{path};
		2129
		2130	if (my $map = $cf::MAP{$path}) {
		2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2132	}
		2133
		2134	$MAP_PREFETCH{$path} |= $load;
		2135
		2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
		2139	while (%MAP_PREFETCH) {
		2140	while (my ($k, $v) = each %MAP_PREFETCH) {
		2141	if (my $map = find $k) {
		2142	$map->load if $v;
		2143	}
		2144
		2145	delete $MAP_PREFETCH{$k};
		2146	}
		2147	}
		2148	undef $MAP_PREFETCHER;
1212	}	2149	};
		2150	$MAP_PREFETCHER->prio (6);
		2151
		2152	()
1213	}	2153	}
1214		2154
1215	sub save {	2155	sub save {
1216	my ($self) = @_;	2156	my ($self) = @_;
1217		2157
1218	my $save = $self->{path}->save_path; utf8::encode $save;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220		2159
1221	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1222		2161
1223	return unless $self->dirty;	2162	return unless $self->dirty;
1224		2163
		2164	my $save = $self->save_path; utf8::encode $save;
		2165	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2166
1225	$self->{load_path} = $save;	2167	$self->{load_path} = $save;
1226		2168
1227	return if $self->{deny_save};	2169	return if $self->{deny_save};
1228		2170
		2171	local $self->{last_access} = $self->last_access;#d#
		2172
		2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
		2175	$_->contr->save for $self->players;
		2176	};
		2177
1229	if ($uniq) {	2178	if ($uniq) {
1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231	$self->save_objects ($uniq, cf::IO_UNIQUES);	2180	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1232	} else {	2181	} else {
1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234	}	2183	}
1235	}	2184	}
1236		2185
1237	sub swap_out {	2186	sub swap_out {
1238	my ($self) = @_;	2187	my ($self) = @_;
		2188
		2189	# save first because save cedes
		2190	$self->save;
		2191
		2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1239		2193
1240	return if $self->players;	2194	return if $self->players;
1241	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1242	return if $self->{deny_save};	2196	return if $self->{deny_save};
1243		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
1244	$self->save;	2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1245	$self->clear;	2202	$self->clear;
1246	$self->in_memory (cf::MAP_SWAPPED);
1247	}	2203	}
1248		2204
1249	sub reset_at {	2205	sub reset_at {
1250	my ($self) = @_;	2206	my ($self) = @_;
1251		2207
1252	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1253	return 1e99 if $self->{path}{user_rel};
1254	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1255		2210
1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258		2213
…		…
1263	my ($self) = @_;	2218	my ($self) = @_;
1264		2219
1265	$self->reset_at <= $cf::RUNTIME	2220	$self->reset_at <= $cf::RUNTIME
1266	}	2221	}
1267		2222
1268	sub unlink_save {
1269	my ($self) = @_;
1270
1271	utf8::encode (my $save = $self->{path}->save_path);
1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274	}
1275
1276	sub rename {
1277	my ($self, $new_path) = @_;
1278
1279	$self->unlink_save;
1280
1281	delete $cf::MAP{$self->path};
1282	$self->{path} = new cf::path $new_path;
1283	$self->path ($self->{path}->as_string);
1284	$cf::MAP{$self->path} = $self;
1285
1286	$self->save;
1287	}
1288
1289	sub reset {	2223	sub reset {
1290	my ($self) = @_;	2224	my ($self) = @_;
1291		2225
		2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2227
1292	return if $self->players;	2228	return if $self->players;
1293	return if $self->{path}{user_rel};#d#
1294		2229
1295	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1296		2241
1297	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1298		2243
		2244	$self->deactivate;
1299	$_->clear_links_to ($self) for values %cf::MAP;	2245	$_->clear_links_to ($self) for values %cf::MAP;
		2246	$self->clear;
1300		2247
1301	$self->unlink_save;	2248	$self->unlink_save;
1302	$self->destroy;	2249	$self->destroy;
1303	}	2250	}
1304		2251
1305	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1306		2253
1307	sub nuke {	2254	sub nuke {
1308	my ($self) = @_;	2255	my ($self) = @_;
1309		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
		2260	delete $cf::MAP{$self->path};
		2261
		2262	$self->unlink_save;
		2263
		2264	bless $self, "cf::map";
		2265	delete $self->{deny_reset};
1310	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1311	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1312	$self->rename ("{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2269
		2270	$cf::MAP{$self->path} = $self;
		2271	}
		2272
1313	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
1314	}	2274	}
1315		2275
1316	sub customise_for {	2276	=item $maps = cf::map::tmp_maps
1317	my ($map, $ob) = @_;
1318		2277
1319	if ($map->per_player) {	2278	Returns an arrayref with all map paths of currently instantiated and saved
1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
1321	}	2284	[
1322		2285	map {
1323	$map	2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
1324	}	2292	}
1325		2293
1326	sub emergency_save {	2294	=item $maps = cf::map::random_maps
1327	local $cf::FREEZE = 1;
1328		2295
1329	warn "enter emergency map save\n";	2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
1330		2298
1331	cf::sync_job {	2299	=cut
1332	warn "begin emergency map save\n";
1333	$_->save for values %cf::MAP;
1334	};
1335		2300
1336	warn "end emergency map save\n";	2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
		2310	}
		2311
		2312	=item cf::map::unique_maps
		2313
		2314	Returns an arrayref of paths of all shared maps that have
		2315	instantiated unique items. May block.
		2316
		2317	=cut
		2318
		2319	sub unique_maps() {
		2320	[
		2321	map {
		2322	utf8::decode $_;
		2323	/\.map$/
		2324	? normalise $_
		2325	: ()
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
		2327	]
1337	}	2328	}
1338		2329
1339	package cf;	2330	package cf;
1340		2331
1341	=back	2332	=back
1342		2333
		2334	=head3 cf::object
		2335
		2336	=cut
		2337
		2338	package cf::object;
		2339
		2340	=over 4
		2341
		2342	=item $ob->inv_recursive
		2343
		2344	Returns the inventory of the object _and_ their inventories, recursively.
		2345
		2346	=cut
		2347
		2348	sub inv_recursive_;
		2349	sub inv_recursive_ {
		2350	map { $_, inv_recursive_ $_->inv } @_
		2351	}
		2352
		2353	sub inv_recursive {
		2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
		2383	}
		2384
		2385	package cf;
		2386
		2387	=back
1343		2388
1344	=head3 cf::object::player	2389	=head3 cf::object::player
1345		2390
1346	=over 4	2391	=over 4
1347		2392
…		…
1361		2406
1362	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1363		2408
1364	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1365	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1366	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1367	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1368	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1369	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1370	}	2434	}
1371		2435
1372	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1373		2437
1374	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1383	(ref $cf::CFG{"may_$access"}	2447	(ref $cf::CFG{"may_$access"}
1384	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2448	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385	: $cf::CFG{"may_$access"})	2449	: $cf::CFG{"may_$access"})
1386	}	2450	}
1387		2451
		2452	=item $player_object->enter_link
		2453
		2454	Freezes the player and moves him/her to a special map (C<{link}>).
		2455
		2456	The player should be reasonably safe there for short amounts of time. You
		2457	I<MUST> call C<leave_link> as soon as possible, though.
		2458
		2459	Will never block.
		2460
		2461	=item $player_object->leave_link ($map, $x, $y)
		2462
		2463	Moves the player out of the special C<{link}> map onto the specified
		2464	map. If the map is not valid (or omitted), the player will be moved back
		2465	to the location he/she was before the call to C<enter_link>, or, if that
		2466	fails, to the emergency map position.
		2467
		2468	Might block.
		2469
		2470	=cut
		2471
		2472	sub link_map {
		2473	unless ($LINK_MAP) {
		2474	$LINK_MAP = cf::map::find "{link}"
		2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2476	$LINK_MAP->load;
		2477	}
		2478
		2479	$LINK_MAP
		2480	}
		2481
1388	sub cf::object::player::enter_link {	2482	sub cf::object::player::enter_link {
1389	my ($self) = @_;	2483	my ($self) = @_;
1390		2484
1391	return if $self->map == $LINK_MAP;
1392
1393	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1394	if $self->map;
1395
1396	$self->enter_map ($LINK_MAP, 20, 20);
1397	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
		2486
		2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2488
		2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2490	if $self->map && $self->map->{path} ne "{link}";
		2491
		2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1398	}	2493	}
1399		2494
1400	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1401	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
1402		2497
		2498	return unless $self->contr->active;
		2499
1403	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1404		2501
1405	unless ($map) {	2502	unless ($map) {
1406	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408	# restore original map position	2503	# restore original map position
1409	($map, $x, $y) = @{ $link_pos || [] };	2504	($map, $x, $y) = @{ $link_pos || [] };
1410	$map = cf::map::find_map $map;	2505	$map = cf::map::find $map;
1411		2506
1412	unless ($map) {	2507	unless ($map) {
1413	($map, $x, $y) = @$EMERGENCY_POSITION;	2508	($map, $x, $y) = @$EMERGENCY_POSITION;
1414	$map = cf::map::find_map $map	2509	$map = cf::map::find $map
1415	or die "FATAL: cannot load emergency map\n";	2510	or die "FATAL: cannot load emergency map\n";
1416	}	2511	}
1417	}	2512	}
1418		2513
1419	($x, $y) = (-1, -1)	2514	($x, $y) = (-1, -1)
…		…
1422	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1423	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1424	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1425		2520
1426	$map->load;	2521	$map->load;
		2522	$map->load_neighbours;
1427		2523
		2524	return unless $self->contr->active;
1428	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1429	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1430	}	2529	}
1431		2530
1432	=item $player_object->goto_map ($map, $x, $y)	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1433		2532
1434	=cut	2533	Moves the player to the given map-path and coordinates by first freezing
		2534	her, loading and preparing them map, calling the provided $check callback
		2535	that has to return the map if sucecssful, and then unfreezes the player on
		2536	the new (success) or old (failed) map position. In either case, $done will
		2537	be called at the end of this process.
1435		2538
		2539	=cut
		2540
		2541	our $GOTOGEN;
		2542
1436	sub cf::object::player::goto_map {	2543	sub cf::object::player::goto {
1437	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1438		2548
1439	$self->enter_link;	2549	$self->enter_link;
1440		2550
1441	(Coro::async {	2551	(async {
1442	$path = new cf::path $path;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
1443		2553
1444	my $map = cf::map::find_map $path->as_string;	2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1445	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
		2578	$map = $check->($map) if $check && $map;
		2579	} else {
		2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1446		2582
1447	warn "entering ", $map->path, " at ($x, $y)\n"
1448	if $map;	2583	$map
		2584	};
1449		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1450	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1451	})->prio (1);	2597	})->prio (1);
1452	}	2598	}
1453		2599
1454	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1455		2601
…		…
1457		2603
1458	sub parse_random_map_params {	2604	sub parse_random_map_params {
1459	my ($spec) = @_;	2605	my ($spec) = @_;
1460		2606
1461	my $rmp = { # defaults	2607	my $rmp = { # defaults
1462	xsize => 10,	2608	xsize => (cf::rndm 15, 40),
1463	ysize => 10,	2609	ysize => (cf::rndm 15, 40),
		2610	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2611	#layout => string,
1464	};	2612	};
1465		2613
1466	for (split /\n/, $spec) {	2614	for (split /\n/, $spec) {
1467	my ($k, $v) = split /\s+/, $_, 2;	2615	my ($k, $v) = split /\s+/, $_, 2;
1468		2616
…		…
1472	$rmp	2620	$rmp
1473	}	2621	}
1474		2622
1475	sub prepare_random_map {	2623	sub prepare_random_map {
1476	my ($exit) = @_;	2624	my ($exit) = @_;
		2625
		2626	my $guard = cf::lock_acquire "exit_prepare:$exit";
1477		2627
1478	# all this does is basically replace the /! path by	2628	# all this does is basically replace the /! path by
1479	# a new random map path (?random/...) with a seed	2629	# a new random map path (?random/...) with a seed
1480	# that depends on the exit object	2630	# that depends on the exit object
1481		2631
1482	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1483		2633
1484	if ($exit->map) {	2634	if ($exit->map) {
1485	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1486	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1487	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1488	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1489	}	2639	}
1490		2640
1491	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1492		2642
1493	my $data = cf::to_json $rmp;	2643	my $data = cf::to_json $rmp;
1494	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
		2645	my $meta = "$RANDOMDIR/$md5.meta";
1495		2646
1496	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1497	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
		2649	undef $fh;
		2650	aio_rename "$meta~", $meta;
1498		2651
1499	$exit->slaying ("?random/$md5");	2652	$exit->slaying ("?random/$md5");
1500	$exit->msg (undef);	2653	$exit->msg (undef);
1501	}	2654	}
1502	}	2655	}
…		…
1504	sub cf::object::player::enter_exit {	2657	sub cf::object::player::enter_exit {
1505	my ($self, $exit) = @_;	2658	my ($self, $exit) = @_;
1506		2659
1507	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1508		2661
		2662	if ($exit->slaying eq "/!") {
		2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
		2666	cf::sync_job { prepare_random_map $exit };
		2667	}
		2668
		2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2670	my $hp = $exit->stats->hp;
		2671	my $sp = $exit->stats->sp;
		2672
1509	$self->enter_link;	2673	$self->enter_link;
1510		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1511	(Coro::async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
		2682	$self->deactivate_recursive; # just to be sure
1512	unless (eval {	2683	unless (eval {
1513		2684	$self->goto ($slaying, $hp, $sp);
1514	prepare_random_map $exit
1515	if $exit->slaying eq "/!";
1516
1517	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1518	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1519		2685
1520	1;	2686	1;
1521	}) {	2687	}) {
1522	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1523	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1524	. "Please report this to the dungeon master",	2690	. "Please report this to the dungeon master!",
1525	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1526		2692
1527	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1528	$self->leave_link;	2694	$self->leave_link;
1529	}	2695	}
1530	})->prio (1);	2696	})->prio (1);
…		…
1543		2709
1544	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1545	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1546		2712
1547	utf8::encode $text;	2713	utf8::encode $text;
1548	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1549	}	2715	}
1550		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1551		2875
1552	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1553		2877
1554	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1555	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1556	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1557		2881
1558	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1559	reliable at some point in the future.	2883	become reliable at some point in the future.
1560		2884
1561	=cut	2885	=cut
1562		2886
1563	sub cf::client::query {	2887	sub cf::client::query {
1564	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1572	utf8::encode $text;	2896	utf8::encode $text;
1573	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1574		2898
1575	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1576	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1577	}	2903	}
1578		2904
1579	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1580	on_reply => sub {	2911	on_reply => sub {
1581	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1582		2913
1583	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1584	# get handled first	2915	# get handled first
1585	my $queue = delete $ns->{query_queue};	2916	my $queue = delete $ns->{query_queue}
		2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1586		2918
1587	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1588		2921
1589	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1590		2923
1591	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1592	if (@$queue) {	2925	if (@$queue) {
…		…
1594	} else {	2927	} else {
1595	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1596	}	2929	}
1597	}	2930	}
1598	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
1599	);	2958	);
1600		2959
1601	=item $client->coro (\&cb)	2960	=item $client->async (\&cb)
1602		2961
1603	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
1604	be automatically cancelled when the client gets destroyed (e.g. on logout,	2963	be automatically cancelled when the client gets destroyed (e.g. on logout,
1605	or loss of connection).	2964	or loss of connection).
1606		2965
1607	=cut	2966	=cut
1608		2967
1609	sub cf::client::coro {	2968	sub cf::client::async {
1610	my ($self, $cb) = @_;	2969	my ($self, $cb) = @_;
1611		2970
1612	my $coro; $coro = async {	2971	my $coro = &Coro::async ($cb);
1613	eval {
1614	$cb->();
1615	};
1616	warn $@ if $@;
1617	};
1618		2972
1619	$coro->on_destroy (sub {	2973	$coro->on_destroy (sub {
1620	delete $self->{_coro}{$coro+0};	2974	delete $self->{_coro}{$coro+0};
1621	});	2975	});
1622		2976
…		…
1649	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
1650	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
1651		3005
1652	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
1653		3007
1654	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
1655		3013
1656	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
1657		3015
1658	=pod	3016	=pod
1659		3017
1660	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
1661		3019
1662	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
1663	cf::object::player player	3024	cf::object::player
1664	cf::player peaceful	3025	player
1665	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
1666		3032
1667	=cut	3033	=cut
1668		3034
1669	for (	3035	for (
1670	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
1671	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
1672	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
1673	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
1674	) {	3042	) {
1675	no strict 'refs';	3043	no strict 'refs';
…		…
1746	=back	3114	=back
1747		3115
1748	=cut	3116	=cut
1749		3117
1750	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
1751		3120
1752	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
1753		3123
1754	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
1755	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
1756	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
1757		3127
1758	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1759	using it, it should be unique.
1760		3129
1761	=over 4	3130	warn "loading facedata from $path\n";
1762		3131
1763	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
1764		3135
1765	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
1766	modified. After modifications, you have to call C<cf::db_dirty> or
1767	C<cf::db_sync>.
1768		3137
1769	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
1770		3140
1771	Returns a single value from the database	3141	# patch in the exptable
1772		3142	$facedata->{resource}{"res/exp_table"} = {
1773	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
1774		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1775	Stores the given family hashref into the database. Updates are delayed, if
1776	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1777
1778	=item cf::db_put $family => $key => $value
1779
1780	Stores the given C<$value> in the family hash. Updates are delayed, if you
1781	want the data to be synced to disk immediately, use C<cf::db_sync>.
1782
1783	=item cf::db_dirty
1784
1785	Marks the database as dirty, to be updated at a later time.
1786
1787	=item cf::db_sync
1788
1789	Immediately write the database to disk I<if it is dirty>.
1790
1791	=cut
1792
1793	our $DB;
1794
1795	{
1796	my $path = cf::localdir . "/database.pst";
1797
1798	sub db_load() {
1799	warn "loading database $path\n";#d# remove later
1800	$DB = stat $path ? Storable::retrieve $path : { };
1801	}
1802
1803	my $pid;
1804
1805	sub db_save() {
1806	warn "saving database $path\n";#d# remove later
1807	waitpid $pid, 0 if $pid;
1808	if (0 == ($pid = fork)) {
1809	$DB->{_meta}{version} = 1;
1810	Storable::nstore $DB, "$path~";
1811	rename "$path~", $path;
1812	cf::_exit 0 if defined $pid;
1813	}
1814	}
1815
1816	my $dirty;
1817
1818	sub db_sync() {
1819	db_save if $dirty;
1820	undef $dirty;
1821	}
1822
1823	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1824	db_sync;
1825	});	3145	};
		3146	cf::cede_to_tick;
1826		3147
1827	sub db_dirty() {
1828	$dirty = 1;
1829	$idle->start;
1830	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
1831		3150
1832	sub db_get($;$) {	3151	while (my ($face, $info) = each %$faces) {
1833	@_ >= 2	3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1834	? $DB->{$_[0]}{$_[1]}	3153	cf::face::set_visibility $idx, $info->{visibility};
1835	: ($DB->{$_[0]} ||= { })	3154	cf::face::set_magicmap $idx, $info->{magicmap};
1836	}	3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1837		3157
1838	sub db_put($$;$) {	3158	cf::cede_to_tick;
1839	if (@_ >= 3) {
1840	$DB->{$_[0]}{$_[1]} = $_[2];
1841	} else {
1842	$DB->{$_[0]} = $_[1];
1843	}
1844	db_dirty;
1845	}
1846
1847	cf::global->attach (
1848	prio => 10000,
1849	on_cleanup => sub {
1850	db_sync;
1851	},	3159	}
1852	);
1853	}
1854		3160
1855	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
1856	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
1857		3171
1858	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
1859	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
1860	or return;	3299	or return;
1861		3300
1862	local $/;	3301	local $/;
1863	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
		3303
		3304	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3305
		3306	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3307	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3308
		3309	if (exists $CFG{mlockall}) {
		3310	eval {
		3311	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3312	and die "WARNING: m(un)lockall failed: $!\n";
		3313	};
		3314	warn $@ if $@;
		3315	}
1864	}	3316	}
1865		3317
1866	sub main {	3318	sub main {
1867	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
1868	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
1869	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870	(Coro::unblock_sub {	3322	(async {
1871	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
1872	})->();	3324	EV::loop EV::LOOP_ONESHOT;
		3325	})->prio (Coro::PRIO_MAX);
1873	};	3326	};
1874		3327
1875	cfg_load;	3328	reload_config;
1876	db_load;	3329	db_init;
1877	load_extensions;	3330	load_extensions;
		3331
		3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1878	Event::loop;	3334	EV::loop;
1879	}	3335	}
1880		3336
1881	#############################################################################	3337	#############################################################################
1882	# initialisation	3338	# initialisation and cleanup
1883		3339
		3340	# install some emergency cleanup handlers
		3341	BEGIN {
		3342	our %SIGWATCHER = ();
		3343	for my $signal (qw(INT HUP TERM)) {
		3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3345	cf::cleanup "SIG$signal";
		3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
		3385	1
		3386	}
		3387
		3388	sub emergency_save() {
		3389	my $freeze_guard = cf::freeze_mainloop;
		3390
		3391	warn "enter emergency perl save\n";
		3392
		3393	cf::sync_job {
		3394	# use a peculiar iteration method to avoid tripping on perl
		3395	# refcount bugs in for. also avoids problems with players
		3396	# and maps saved/destroyed asynchronously.
		3397	warn "begin emergency player save\n";
		3398	for my $login (keys %cf::PLAYER) {
		3399	my $pl = $cf::PLAYER{$login} or next;
		3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3402	$pl->save;
		3403	}
		3404	warn "end emergency player save\n";
		3405
		3406	warn "begin emergency map save\n";
		3407	for my $path (keys %cf::MAP) {
		3408	my $map = $cf::MAP{$path} or next;
		3409	$map->valid or next;
		3410	$map->save;
		3411	}
		3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
		3417	};
		3418
		3419	warn "leave emergency perl save\n";
		3420	}
		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
1884	sub reload() {	3429	sub do_reload_perl() {
1885	# can/must only be called in main	3430	# can/must only be called in main
1886	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
1887	warn "can only reload from main coroutine\n";	3432	warn "can only reload from main coroutine";
1888	return;	3433	return;
1889	}	3434	}
1890		3435
1891	warn "reloading...";	3436	warn "reloading...";
1892		3437
1893	local $FREEZE = 1;	3438	warn "entering sync_job";
		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
1894	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
1895		3444
1896	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
1897	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
1898		3449
1899	# cancel all watchers	3450	warn "flushing outstanding aio requests";
1900	for (Event::all_watchers) {	3451	for (;;) {
1901	$_->cancel if $_->data & WF_AUTOCANCEL;	3452	BDB::flush;
		3453	IO::AIO::flush;
		3454	Coro::cede_notself;
		3455	last unless IO::AIO::nreqs || BDB::nreqs;
		3456	warn "iterate...";
1902	}	3457	}
1903		3458
		3459	++$RELOAD;
		3460
1904	# cancel all extension coros	3461	warn "cancelling all extension coros";
1905	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
1906	%EXT_CORO = ();	3463	%EXT_CORO = ();
1907		3464
1908	# unload all extensions	3465	warn "removing commands";
1909	for (@exts) {	3466	%COMMAND = ();
		3467
		3468	warn "removing ext/exti commands";
		3469	%EXTCMD = ();
		3470	%EXTICMD = ();
		3471
		3472	warn "unloading/nuking all extensions";
		3473	for my $pkg (@EXTS) {
1910	warn "unloading <$_>";	3474	warn "... unloading $pkg";
1911	unload_extension $_;	3475
		3476	if (my $cb = $pkg->can ("unload")) {
		3477	eval {
		3478	$cb->($pkg);
		3479	1
		3480	} or warn "$pkg unloaded, but with errors: $@";
1912	}	3481	}
1913		3482
		3483	warn "... nuking $pkg";
		3484	Symbol::delete_package $pkg;
		3485	}
		3486
1914	# unload all modules loaded from $LIBDIR	3487	warn "unloading all perl modules loaded from $LIBDIR";
1915	while (my ($k, $v) = each %INC) {	3488	while (my ($k, $v) = each %INC) {
1916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3489	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1917		3490
1918	warn "removing <$k>";	3491	warn "... unloading $k";
1919	delete $INC{$k};	3492	delete $INC{$k};
1920		3493
1921	$k =~ s/\.pm$//;	3494	$k =~ s/\.pm$//;
1922	$k =~ s/\//::/g;	3495	$k =~ s/\//::/g;
1923		3496
…		…
1926	}	3499	}
1927		3500
1928	Symbol::delete_package $k;	3501	Symbol::delete_package $k;
1929	}	3502	}
1930		3503
1931	# sync database to disk
1932	cf::db_sync;
1933	IO::AIO::flush;
1934
1935	# get rid of safe::, as good as possible	3504	warn "getting rid of safe::, as good as possible";
1936	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
1937	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1938		3507
1939	# remove register_script_function callbacks
1940	# TODO
1941
1942	# unload cf.pm "a bit"	3508	warn "unloading cf.pm \"a bit\"";
1943	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
1944		3511
1945	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
1946	# and global variables created in xs	3513	# and global variables created in xs
1947	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
1948		3515
1949	# reload cf.pm	3516	warn "unload completed, starting to reload now";
		3517
1950	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
1951	require cf;	3519	require cf;
1952	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1953		3521
1954	# load config and database again	3522	warn "loading config and database again";
1955	cf::cfg_load;	3523	cf::reload_config;
1956	cf::db_load;
1957		3524
1958	# load extensions
1959	warn "load extensions";	3525	warn "loading extensions";
1960	cf::load_extensions;	3526	cf::load_extensions;
1961		3527
1962	# reattach attachments to objects	3528	warn "reattaching attachments to objects/players";
1963	warn "reattach";	3529	_global_reattach; # objects, sockets
1964	_global_reattach;	3530	warn "reattaching attachments to maps";
1965	};	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
1966		3534
1967	if ($@) {	3535	warn "leaving sync_job";
		3536
		3537	1
		3538	} or do {
1968	warn $@;	3539	warn $@;
1969	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
1970	exit 1;	3541	exit 1;
1971	}	3542	};
1972		3543
1973	warn "reloaded successfully";	3544	warn "reloaded";
1974	};	3545	};
1975		3546
1976	#############################################################################	3547	our $RELOAD_WATCHER; # used only during reload
1977		3548
1978	unless ($LINK_MAP) {	3549	sub reload_perl() {
1979	$LINK_MAP = cf::map::new;	3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
1980		3552
1981	$LINK_MAP->width (41);	3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
1982	$LINK_MAP->height (41);	3554	undef $RELOAD_WATCHER;
1983	$LINK_MAP->alloc;	3555	do_reload_perl;
1984	$LINK_MAP->path ("{link}");	3556	};
1985	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1986	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1987
1988	# dirty hack because... archetypes are not yet loaded
1989	Event->timer (
1990	after => 2,
1991	cb => sub {
1992	$_[0]->w->cancel;
1993
1994	# provide some exits "home"
1995	my $exit = cf::object::new "exit";
1996
1997	$exit->slaying ($EMERGENCY_POSITION->[0]);
1998	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1999	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2000
2001	$LINK_MAP->insert ($exit->clone, 19, 19);
2002	$LINK_MAP->insert ($exit->clone, 19, 20);
2003	$LINK_MAP->insert ($exit->clone, 19, 21);
2004	$LINK_MAP->insert ($exit->clone, 20, 19);
2005	$LINK_MAP->insert ($exit->clone, 20, 21);
2006	$LINK_MAP->insert ($exit->clone, 21, 19);
2007	$LINK_MAP->insert ($exit->clone, 21, 20);
2008	$LINK_MAP->insert ($exit->clone, 21, 21);
2009
2010	$exit->destroy;
2011	});
2012
2013	$LINK_MAP->{deny_save} = 1;
2014	$LINK_MAP->{deny_reset} = 1;
2015
2016	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2017	}	3557	}
2018
2019	register "<global>", __PACKAGE__;
2020		3558
2021	register_command "reload" => sub {	3559	register_command "reload" => sub {
2022	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2023		3561
2024	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2025	$who->message ("start of reload.");
2026	reload;
2027	$who->message ("end of reload.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
2028	}	3568	}
2029	};	3569	};
2030		3570
2031	unshift @INC, $LIBDIR;	3571	unshift @INC, $LIBDIR;
2032		3572
2033	$TICK_WATCHER = Event->timer (	3573	my $bug_warning = 0;
2034	reentrant => 0,	3574
2035	prio => 0,	3575	our @WAIT_FOR_TICK;
2036	at => $NEXT_TICK || $TICK,	3576	our @WAIT_FOR_TICK_BEGIN;
2037	data => WF_AUTOCANCEL,	3577
2038	cb => sub {	3578	sub wait_for_tick {
2039	unless ($FREEZE) {	3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
2040	cf::server_tick; # one server iteration	3605	cf::server_tick; # one server iteration
		3606
2041	$RUNTIME += $TICK;	3607	$RUNTIME += $TICK;
2042	}
2043
2044	$NEXT_TICK += $TICK;	3608	$NEXT_TICK += $TICK;
2045		3609
2046	# if we are delayed by four ticks or more, skip them all	3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2047	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
2048		3612	Coro::async_pool {
2049	$TICK_WATCHER->at ($NEXT_TICK);	3613	$Coro::current->{desc} = "runtime saver";
2050	$TICK_WATCHER->start;
2051	},
2052	);
2053
2054	IO::AIO::max_poll_time $TICK * 0.2;
2055
2056	Event->io (
2057	fd => IO::AIO::poll_fileno,
2058	poll => 'r',
2059	prio => 5,
2060	data => WF_AUTOCANCEL,
2061	cb => \&IO::AIO::poll_cb,
2062	);
2063
2064	Event->timer (
2065	data => WF_AUTOCANCEL,
2066	after => 0,
2067	interval => 10,
2068	cb => sub {
2069	(Coro::unblock_sub {
2070	write_runtime	3614	write_runtime
2071	or warn "ERROR: unable to write runtime file: $!";	3615	or warn "ERROR: unable to write runtime file: $!";
2072	})->();	3616	};
2073	},	3617	}
2074	);	3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
		3642	sub {
		3643	$status = $!;
		3644	$current->ready; undef $current;
		3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
		3650	)
		3651	};
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
		3737
		3738	END { cf::emergency_save }
2075		3739
2076	1	3740	1
2077		3741

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