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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.212 by root, Tue Feb 13 19:25:44 2007 UTC vs.
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
20	use BDB ();	28	use BDB ();
21	use Data::Dumper;	29	use Data::Dumper;
22	use Digest::MD5;	30	use Digest::MD5;
23	use Fcntl;	31	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
26	use Time::HiRes;	34	use Time::HiRes;
27	use Compress::LZF;	35	use Compress::LZF;
		36	use Digest::MD5 ();
28		37
		38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		43
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
37		46
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
40	our %COMMAND = ();	51	our %COMMAND = ();
41	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
42		53
43	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
47		59
		60	our $RELOAD; # number of reloads so far
48	our @EVENT;	61	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		62
51	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	77	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
54	our $WRITE_RUNTIME_WATCHER;	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	80	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		82
59	our $BDB_POLL_WATCHER;	83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	87	our $DB_ENV;
61		88
62	our %CFG;	89	our %CFG;
63		90
64	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
66		94
67	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		98
76	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
		105
79	binmode STDOUT;	106	binmode STDOUT;
80	binmode STDERR;	107	binmode STDERR;
81		108
82	# read virtual server time, if available	109	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
87	}	114	}
88		115
89	mkdir cf::localdir;	116	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		118
96	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
97		120
98	sub cf::map::normalise;	121	sub cf::map::normalise;
99		122
…		…
110	=item $cf::RUNTIME	133	=item $cf::RUNTIME
111		134
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	136	every server tick.
114		137
115	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		141
117	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
119		146
120	=item $cf::NOW	147	=item $cf::NOW
121		148
122	The time of the last (current) server tick.	149	The time of the last (current) server tick.
123		150
124	=item $cf::TICK	151	=item $cf::TICK
125		152
126	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
127		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
128	=item %cf::CFG	165	=item %cf::CFG
129		166
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	168	from wherever your confdir points to.
132		169
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		171
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
139		181
140	=back	182	=back
141		183
142	=cut	184	=cut
143		185
144	BEGIN {	186	BEGIN {
145	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	188	my $msg = join "", @_;
147	utf8::encode $msg;
148		189
149	$msg .= "\n"	190	$msg .= "\n"
150	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
151		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
152	LOG llevError, $msg;	195	LOG llevError, $msg;
153	};	196	};
154	}	197	}
		198
		199	$Coro::State::DIEHOOK = sub {
		200	warn Carp::longmess $_[0];
		201	Coro::terminate;
		202	};
155		203
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	204	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	205	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	206	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	207	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	208	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		209	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	210	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		211
163	# we bless all objects into (empty) derived classes to force a method lookup	212	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	213	# within the Safe compartment.
165	for my $pkg (qw(	214	for my $pkg (qw(
166	cf::global cf::attachable	215	cf::global cf::attachable
…		…
171	)) {	220	)) {
172	no strict 'refs';	221	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	222	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	223	}
175		224
176	$Event::DIED = sub {	225	$EV::DIED = sub {
177	warn "error in event callback: @_";	226	warn "error in event callback: @_";
178	};	227	};
		228
		229	#############################################################################
179		230
180	=head2 UTILITY FUNCTIONS	231	=head2 UTILITY FUNCTIONS
181		232
182	=over 4	233	=over 4
183		234
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	253	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	254	$d
204	} || "[unable to dump $_[0]: '$@']";	255	} || "[unable to dump $_[0]: '$@']";
205	}	256	}
206		257
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	258	=item $ref = cf::decode_json $json
210		259
211	Converts a JSON string into the corresponding perl data structure.	260	Converts a JSON string into the corresponding perl data structure.
212		261
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	262	=item $json = cf::encode_json $ref
221		263
222	Converts a perl data structure into its JSON representation.	264	Converts a perl data structure into its JSON representation.
223		265
224	=cut	266	=cut
225		267
226	sub to_json($) {	268	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	269
228	JSON::Syck::Dump $_[0]	270	sub encode_json($) { $json_coder->encode ($_[0]) }
229	}	271	sub decode_json($) { $json_coder->decode ($_[0]) }
230		272
231	=item cf::lock_wait $string	273	=item cf::lock_wait $string
232		274
233	Wait until the given lock is available. See cf::lock_acquire.	275	Wait until the given lock is available. See cf::lock_acquire.
234		276
…		…
237	Wait until the given lock is available and then acquires it and returns	279	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	280	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	281	for example when the coroutine gets canceled), the lock is automatically
240	returned.	282	returned.
241		283
		284	Locks are *not* recursive, locking from the same coro twice results in a
		285	deadlocked coro.
		286
242	Lock names should begin with a unique identifier (for example, cf::map::find	287	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	288	uses map_find and cf::map::load uses map_load).
244		289
		290	=item $locked = cf::lock_active $string
		291
		292	Return true if the lock is currently active, i.e. somebody has locked it.
		293
245	=cut	294	=cut
246		295
247	our %LOCK;	296	our %LOCK;
		297	our %LOCKER;#d#
248		298
249	sub lock_wait($) {	299	sub lock_wait($) {
250	my ($key) = @_;	300	my ($key) = @_;
		301
		302	if ($LOCKER{$key} == $Coro::current) {#d#
		303	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		304	return;#d#
		305	}#d#
251		306
252	# wait for lock, if any	307	# wait for lock, if any
253	while ($LOCK{$key}) {	308	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;	309	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	310	Coro::schedule;
…		…
261		316
262	# wait, to be sure we are not locked	317	# wait, to be sure we are not locked
263	lock_wait $key;	318	lock_wait $key;
264		319
265	$LOCK{$key} = [];	320	$LOCK{$key} = [];
		321	$LOCKER{$key} = $Coro::current;#d#
266		322
267	Coro::guard {	323	Coro::guard {
		324	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	325	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	326	$_->ready for @{ delete $LOCK{$key} };
270	}	327	}
271	}	328	}
272		329
		330	sub lock_active($) {
		331	my ($key) = @_;
		332
		333	! ! $LOCK{$key}
		334	}
		335
273	sub freeze_mainloop {	336	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	337	return unless $TICK_WATCHER->is_active;
275		338
276	my $guard = Coro::guard {	339	my $guard = Coro::guard {
277	$TICK_WATCHER->start;	340	$TICK_WATCHER->start;
278	$WRITE_RUNTIME_WATCHER->start;
279	};	341	};
280	$WRITE_RUNTIME_WATCHER->stop;
281	$TICK_WATCHER->stop;	342	$TICK_WATCHER->stop;
282	$guard	343	$guard
		344	}
		345
		346	=item cf::periodic $interval, $cb
		347
		348	Like EV::periodic, but randomly selects a starting point so that the actions
		349	get spread over timer.
		350
		351	=cut
		352
		353	sub periodic($$) {
		354	my ($interval, $cb) = @_;
		355
		356	my $start = rand List::Util::min 180, $interval;
		357
		358	EV::periodic $start, $interval, 0, $cb
		359	}
		360
		361	=item cf::get_slot $time[, $priority[, $name]]
		362
		363	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		364	This call blocks and returns only when you have at least C<$time> seconds
		365	of cpu time till the next tick. The slot is only valid till the next cede.
		366
		367	The optional C<$name> can be used to identify the job to run. It might be
		368	used for statistical purposes and should identify the same time-class.
		369
		370	Useful for short background jobs.
		371
		372	=cut
		373
		374	our @SLOT_QUEUE;
		375	our $SLOT_QUEUE;
		376
		377	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		378	$SLOT_QUEUE = Coro::async {
		379	$Coro::current->desc ("timeslot manager");
		380
		381	my $signal = new Coro::Signal;
		382
		383	while () {
		384	next_job:
		385	my $avail = cf::till_tick;
		386	if ($avail > 0.01) {
		387	for (0 .. $#SLOT_QUEUE) {
		388	if ($SLOT_QUEUE[$_][0] < $avail) {
		389	my $job = splice @SLOT_QUEUE, $_, 1, ();
		390	$job->[2]->send;
		391	Coro::cede;
		392	goto next_job;
		393	}
		394	}
		395	}
		396
		397	if (@SLOT_QUEUE) {
		398	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		399	push @cf::WAIT_FOR_TICK, $signal;
		400	$signal->wait;
		401	} else {
		402	Coro::schedule;
		403	}
		404	}
		405	};
		406
		407	sub get_slot($;$$) {
		408	my ($time, $pri, $name) = @_;
		409
		410	$time = $TICK * .6 if $time > $TICK * .6;
		411	my $sig = new Coro::Signal;
		412
		413	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		414	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		415	$SLOT_QUEUE->ready;
		416	$sig->wait;
283	}	417	}
284		418
285	=item cf::async { BLOCK }	419	=item cf::async { BLOCK }
286		420
287	Currently the same as Coro::async_pool, meaning you cannot use	421	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		426
293	BEGIN { *async = \&Coro::async_pool }	427	BEGIN { *async = \&Coro::async_pool }
294		428
295	=item cf::sync_job { BLOCK }	429	=item cf::sync_job { BLOCK }
296		430
297	The design of crossfire+ requires that the main coro ($Coro::main) is	431	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	432	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	433	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		434	acceptable.
300		435
301	If it must be done, put the blocking parts into C<sync_job>. This will run	436	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	437	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	438	server will be frozen during this time, so the block should either finish
304	fast or be very important.	439	fast or be very important.
…		…
307		442
308	sub sync_job(&) {	443	sub sync_job(&) {
309	my ($job) = @_;	444	my ($job) = @_;
310		445
311	if ($Coro::current == $Coro::main) {	446	if ($Coro::current == $Coro::main) {
		447	my $time = EV::time;
		448
312	# this is the main coro, too bad, we have to block	449	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	450	# till the operation succeeds, freezing the server :/
314		451
		452	LOG llevError, Carp::longmess "sync job";#d#
		453
315	# TODO: use suspend/resume instead	454	# TODO: use suspend/resume instead
316	# (but this is cancel-safe)	455	# (but this is cancel-safe)
317	my $freeze_guard = freeze_mainloop;	456	my $freeze_guard = freeze_mainloop;
318		457
319	my $busy = 1;	458	my $busy = 1;
320	my @res;	459	my @res;
321		460
322	(async {	461	(async {
		462	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	463	@res = eval { $job->() };
324	warn $@ if $@;	464	warn $@ if $@;
325	undef $busy;	465	undef $busy;
326	})->prio (Coro::PRIO_MAX);	466	})->prio (Coro::PRIO_MAX);
327		467
328	while ($busy) {	468	while ($busy) {
329	Coro::cede or Event::one_event;	469	if (Coro::nready) {
		470	Coro::cede_notself;
		471	} else {
		472	EV::loop EV::LOOP_ONESHOT;
330	}	473	}
		474	}
		475
		476	$time = EV::time - $time;
		477
		478	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		479	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		480
		481	$tick_start += $time; # do not account sync jobs to server load
331		482
332	wantarray ? @res : $res[0]	483	wantarray ? @res : $res[0]
333	} else {	484	} else {
334	# we are in another coroutine, how wonderful, everything just works	485	# we are in another coroutine, how wonderful, everything just works
335		486
…		…
355	$EXT_CORO{$coro+0} = $coro;	506	$EXT_CORO{$coro+0} = $coro;
356		507
357	$coro	508	$coro
358	}	509	}
359		510
360	sub write_runtime {	511	=item fork_call { }, $args
361	my $runtime = cf::localdir . "/runtime";
362		512
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	513	Executes the given code block with the given arguments in a seperate
364	or return;	514	process, returning the results. Everything must be serialisable with
		515	Coro::Storable. May, of course, block. Note that the executed sub may
		516	never block itself or use any form of event handling.
365		517
366	my $value = $cf::RUNTIME + 90 + 10;	518	=cut
367	# 10 is the runtime save interval, for a monotonic clock
368	# 60 allows for the watchdog to kill the server.
369		519
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	520	sub fork_call(&@) {
371	and return;	521	my ($cb, @args) = @_;
372		522
373	# always fsync - this file is important	523	# we seemingly have to make a local copy of the whole thing,
374	aio_fsync $fh	524	# otherwise perl prematurely frees the stuff :/
375	and return;	525	# TODO: investigate and fix (likely this will be rather laborious)
376		526
377	close $fh	527	my @res = Coro::Util::fork_eval {
378	or return;	528	reset_signals;
		529	&$cb
		530	}, @args;
379		531
380	aio_rename "$runtime~", $runtime	532	wantarray ? @res : $res[-1]
381	and return;	533	}
382		534
		535	=item $value = cf::db_get $family => $key
		536
		537	Returns a single value from the environment database.
		538
		539	=item cf::db_put $family => $key => $value
		540
		541	Stores the given C<$value> in the family. It can currently store binary
		542	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		543
		544	=item $db = cf::db_table "name"
		545
		546	Create and/or open a new database table. The string must not be "db" and must be unique
		547	within each server.
		548
		549	=cut
		550
		551	sub db_table($) {
		552	my ($name) = @_;
		553	my $db = BDB::db_create $DB_ENV;
		554
		555	eval {
		556	$db->set_flags (BDB::CHKSUM);
		557
		558	utf8::encode $name;
		559	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		560	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		561	cf::cleanup "db_open(db): $!" if $!;
		562	};
		563	cf::cleanup "db_open(db): $@" if $@;
		564
		565	$db
		566	}
		567
		568	our $DB;
		569
		570	sub db_init {
		571	cf::sync_job {
		572	$DB ||= db_table "db";
		573	};
		574	}
		575
		576	sub db_get($$) {
		577	my $key = "$_[0]/$_[1]";
		578
		579	cf::sync_job {
		580	BDB::db_get $DB, undef, $key, my $data;
		581
		582	$! ? ()
		583	: $data
383	1	584	}
		585	}
		586
		587	sub db_put($$$) {
		588	BDB::dbreq_pri 4;
		589	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		590	}
		591
		592	=item cf::cache $id => [$paths...], $processversion => $process
		593
		594	Generic caching function that returns the value of the resource $id,
		595	caching and regenerating as required.
		596
		597	This function can block.
		598
		599	=cut
		600
		601	sub cache {
		602	my ($id, $src, $processversion, $process) = @_;
		603
		604	my $meta =
		605	join "\x00",
		606	$processversion,
		607	map {
		608	aio_stat $_
		609	and Carp::croak "$_: $!";
		610
		611	($_, (stat _)[7,9])
		612	} @$src;
		613
		614	my $dbmeta = db_get cache => "$id/meta";
		615	if ($dbmeta ne $meta) {
		616	# changed, we may need to process
		617
		618	my @data;
		619	my $md5;
		620
		621	for (0 .. $#$src) {
		622	0 <= aio_load $src->[$_], $data[$_]
		623	or Carp::croak "$src->[$_]: $!";
		624	}
		625
		626	# if processing is expensive, check
		627	# checksum first
		628	if (1) {
		629	$md5 =
		630	join "\x00",
		631	$processversion,
		632	map {
		633	cf::cede_to_tick;
		634	($src->[$_], Digest::MD5::md5_hex $data[$_])
		635	} 0.. $#$src;
		636
		637
		638	my $dbmd5 = db_get cache => "$id/md5";
		639	if ($dbmd5 eq $md5) {
		640	db_put cache => "$id/meta", $meta;
		641
		642	return db_get cache => "$id/data";
		643	}
		644	}
		645
		646	my $t1 = Time::HiRes::time;
		647	my $data = $process->(\@data);
		648	my $t2 = Time::HiRes::time;
		649
		650	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		651
		652	db_put cache => "$id/data", $data;
		653	db_put cache => "$id/md5" , $md5;
		654	db_put cache => "$id/meta", $meta;
		655
		656	return $data;
		657	}
		658
		659	db_get cache => "$id/data"
		660	}
		661
		662	=item cf::datalog type => key => value, ...
		663
		664	Log a datalog packet of the given type with the given key-value pairs.
		665
		666	=cut
		667
		668	sub datalog($@) {
		669	my ($type, %kv) = @_;
		670	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	671	}
385		672
386	=back	673	=back
387		674
388	=cut	675	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	682	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	683	to it. All such attachable objects support the following methods.
397		684
398	In the following description, CLASS can be any of C<global>, C<object>	685	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	686	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	687	Deliantra).
401		688
402	=over 4	689	=over 4
403		690
404	=item $attachable->attach ($attachment, key => $value...)	691	=item $attachable->attach ($attachment, key => $value...)
405		692
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	855	$registry = $CB_TYPE[$object_type] ||= [];
569		856
570	} elsif ($type eq "subtype") {	857	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	858	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	859	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	860	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		861
575	} elsif ($type eq "package") {	862	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	863	my $pkg = shift @arg;
577		864
578	while (my ($name, $id) = each %cb_id) {	865	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	894	_attach $registry, $klass, @attach;
608	}	895	}
609		896
610	$obj->{$name} = \%arg;	897	$obj->{$name} = \%arg;
611	} else {	898	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	899	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	900	}
614		901
615	$obj->{_attachment}{$name} = undef;	902	$obj->{_attachment}{$name} = undef;
616	}	903	}
617		904
…		…
619	if (ref $_[0]) {	906	if (ref $_[0]) {
620	_object_attach @_;	907	_object_attach @_;
621	} else {	908	} else {
622	_attach shift->_attach_registry, @_;	909	_attach shift->_attach_registry, @_;
623	}	910	}
		911	_recalc_want;
624	};	912	};
625		913
626	# all those should be optimised	914	# all those should be optimised
627	sub cf::attachable::detach {	915	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	916	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	919	delete $obj->{_attachment}{$name};
632	reattach ($obj);	920	reattach ($obj);
633	} else {	921	} else {
634	Carp::croak "cannot, currently, detach class attachments";	922	Carp::croak "cannot, currently, detach class attachments";
635	}	923	}
		924	_recalc_want;
636	};	925	};
637		926
638	sub cf::attachable::attached {	927	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	928	my ($obj, $name) = @_;
640		929
…		…
655	";	944	";
656	die if $@;	945	die if $@;
657	}	946	}
658		947
659	our $override;	948	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	949	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		950
662	sub override {	951	sub override {
663	$override = 1;	952	$override = 1;
664	@invoke_results = ();	953	@INVOKE_RESULTS = (@_);
665	}	954	}
666		955
667	sub do_invoke {	956	sub do_invoke {
668	my $event = shift;	957	my $event = shift;
669	my $callbacks = shift;	958	my $callbacks = shift;
670		959
671	@invoke_results = ();	960	@INVOKE_RESULTS = ();
672		961
673	local $override;	962	local $override;
674		963
675	for (@$callbacks) {	964	for (@$callbacks) {
676	eval { &{$_->[1]} };	965	eval { &{$_->[1]} };
…		…
685	}	974	}
686		975
687	0	976	0
688	}	977	}
689		978
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	979	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		980
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	981	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		982
694	Generate an object-specific event with the given arguments.	983	Generate an object-specific event with the given arguments.
695		984
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	985	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	986	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	987	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		988
700	=back	989	=back
701		990
702	=cut	991	=cut
703		992
704	#############################################################################	993	#############################################################################
705	# object support	994	# object support
		995
		996	sub _object_equal($$);
		997	sub _object_equal($$) {
		998	my ($a, $b) = @_;
		999
		1000	return 0 unless (ref $a) eq (ref $b);
		1001
		1002	if ("HASH" eq ref $a) {
		1003	my @ka = keys %$a;
		1004	my @kb = keys %$b;
		1005
		1006	return 0 if @ka != @kb;
		1007
		1008	for (0 .. $#ka) {
		1009	return 0 unless $ka[$_] eq $kb[$_];
		1010	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1011	}
		1012
		1013	} elsif ("ARRAY" eq ref $a) {
		1014
		1015	return 0 if @$a != @$b;
		1016
		1017	for (0 .. $#$a) {
		1018	return 0 unless _object_equal $a->[$_], $b->[$_];
		1019	}
		1020
		1021	} elsif ($a ne $b) {
		1022	return 0;
		1023	}
		1024
		1025	1
		1026	}
		1027
		1028	our $SLOW_MERGES;#d#
		1029	sub _can_merge {
		1030	my ($ob1, $ob2) = @_;
		1031
		1032	++$SLOW_MERGES;#d#
		1033
		1034	# we do the slow way here
		1035	return _object_equal $ob1, $ob2
		1036	}
706		1037
707	sub reattach {	1038	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1039	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1040	my ($obj) = @_;
710		1041
…		…
731	cf::attachable->attach (	1062	cf::attachable->attach (
732	prio => -1000000,	1063	prio => -1000000,
733	on_instantiate => sub {	1064	on_instantiate => sub {
734	my ($obj, $data) = @_;	1065	my ($obj, $data) = @_;
735		1066
736	$data = from_json $data;	1067	$data = decode_json $data;
737		1068
738	for (@$data) {	1069	for (@$data) {
739	my ($name, $args) = @$_;	1070	my ($name, $args) = @$_;
740		1071
741	$obj->attach ($name, %{$args || {} });	1072	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1088	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1089	my ($filename, $rdata, $objs) = @_;
759		1090
760	sync_job {	1091	sync_job {
761	if (length $$rdata) {	1092	if (length $$rdata) {
		1093	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1094	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1095	$decname, length $$rdata, scalar @$objs;
764		1096
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1099	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1100	aio_fsync $fh if $cf::USE_FSYNC;
769	close $fh;	1101	close $fh;
770		1102
771	if (@$objs) {	1103	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1106	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1107	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1108	aio_fsync $fh if $cf::USE_FSYNC;
777	close $fh;	1109	close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1110	aio_rename "$filename.pst~", "$filename.pst";
779	}	1111	}
…		…
787	}	1119	}
788	} else {	1120	} else {
789	aio_unlink $filename;	1121	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1122	aio_unlink "$filename.pst";
791	}	1123	}
792
793	#d##TODO# nuke non .map-files if exist
794	if ($filename =~ s/\.map$//) {
795	aio_unlink $filename;
796	aio_unlink "$filename.pst";
797	}
798	}	1124	};
799	}	1125	}
800		1126
801	sub object_freezer_as_string {	1127	sub object_freezer_as_string {
802	my ($rdata, $objs) = @_;	1128	my ($rdata, $objs) = @_;
803		1129
…		…
808		1134
809	sub object_thawer_load {	1135	sub object_thawer_load {
810	my ($filename) = @_;	1136	my ($filename) = @_;
811		1137
812	my ($data, $av);	1138	my ($data, $av);
813
814	#d#TODO remove .map if file does not exist
815	aio_stat $filename and $filename =~ s/\.map$//;
816		1139
817	(aio_load $filename, $data) >= 0	1140	(aio_load $filename, $data) >= 0
818	or return;	1141	or return;
819		1142
820	unless (aio_stat "$filename.pst") {	1143	unless (aio_stat "$filename.pst") {
821	(aio_load "$filename.pst", $av) >= 0	1144	(aio_load "$filename.pst", $av) >= 0
822	or return;	1145	or return;
		1146
823	$av = eval { (Storable::thaw $av)->{objs} };	1147	my $st = eval { Coro::Storable::thaw $av };
		1148	$av = $st->{objs};
824	}	1149	}
825		1150
		1151	utf8::decode (my $decname = $filename);
826	warn sprintf "loading %s (%d)\n",	1152	warn sprintf "loading %s (%d,%d)\n",
827	$filename, length $data, scalar @{$av || []};#d#	1153	$decname, length $data, scalar @{$av || []};
		1154
828	return ($data, $av);	1155	($data, $av)
829	}	1156	}
		1157
		1158	=head2 COMMAND CALLBACKS
		1159
		1160	=over 4
		1161
		1162	=cut
830		1163
831	#############################################################################	1164	#############################################################################
832	# command handling &c	1165	# command handling &c
833		1166
834	=item cf::register_command $name => \&callback($ob,$args);	1167	=item cf::register_command $name => \&callback($ob,$args);
…		…
847	push @{ $COMMAND{$name} }, [$caller, $cb];	1180	push @{ $COMMAND{$name} }, [$caller, $cb];
848	}	1181	}
849		1182
850	=item cf::register_extcmd $name => \&callback($pl,$packet);	1183	=item cf::register_extcmd $name => \&callback($pl,$packet);
851		1184
852	Register a callbackf ro execution when the client sends an extcmd packet.	1185	Register a callback for execution when the client sends an (synchronous)
		1186	extcmd packet. Ext commands will be processed in the order they are
		1187	received by the server, like other user commands. The first argument is
		1188	the logged-in player. Ext commands can only be processed after a player
		1189	has logged in successfully.
853		1190
854	If the callback returns something, it is sent back as if reply was being	1191	If the callback returns something, it is sent back as if reply was being
855	called.	1192	called.
856		1193
		1194	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1195
		1196	Register a callback for execution when the client sends an (asynchronous)
		1197	exticmd packet. Exti commands are processed by the server as soon as they
		1198	are received, i.e. out of order w.r.t. other commands. The first argument
		1199	is a client socket. Exti commands can be received anytime, even before
		1200	log-in.
		1201
		1202	If the callback returns something, it is sent back as if reply was being
		1203	called.
		1204
857	=cut	1205	=cut
858		1206
859	sub register_extcmd {	1207	sub register_extcmd {
860	my ($name, $cb) = @_;	1208	my ($name, $cb) = @_;
861		1209
862	$EXTCMD{$name} = $cb;	1210	$EXTCMD{$name} = $cb;
		1211	}
		1212
		1213	sub register_exticmd {
		1214	my ($name, $cb) = @_;
		1215
		1216	$EXTICMD{$name} = $cb;
863	}	1217	}
864		1218
865	cf::player->attach (	1219	cf::player->attach (
866	on_command => sub {	1220	on_command => sub {
867	my ($pl, $name, $params) = @_;	1221	my ($pl, $name, $params) = @_;
…		…
876	cf::override;	1230	cf::override;
877	},	1231	},
878	on_extcmd => sub {	1232	on_extcmd => sub {
879	my ($pl, $buf) = @_;	1233	my ($pl, $buf) = @_;
880		1234
881	my $msg = eval { from_json $buf };	1235	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882		1236
883	if (ref $msg) {	1237	if (ref $msg) {
		1238	my ($type, $reply, @payload) =
		1239	"ARRAY" eq ref $msg
		1240	? @$msg
		1241	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1242
		1243	my @reply;
		1244
884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1245	if (my $cb = $EXTCMD{$type}) {
885	if (my %reply = $cb->($pl, $msg)) {	1246	@reply = $cb->($pl, @payload);
886	$pl->ext_reply ($msg->{msgid}, %reply);
887	}
888	}	1247	}
		1248
		1249	$pl->ext_reply ($reply, @reply)
		1250	if $reply;
		1251
889	} else {	1252	} else {
890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1253	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891	}	1254	}
892		1255
893	cf::override;	1256	cf::override;
894	},	1257	},
895	);	1258	);
896		1259
897	sub load_extension {
898	my ($path) = @_;
899
900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
901	my $base = $1;
902	my $pkg = $1;
903	$pkg =~ s/[^[:word:]]/_/g;
904	$pkg = "ext::$pkg";
905
906	warn "... loading '$path' into '$pkg'\n";
907
908	open my $fh, "<:utf8", $path
909	or die "$path: $!";
910
911	my $source =
912	"package $pkg; use strict; use utf8;\n"
913	. "#line 1 \"$path\"\n{\n"
914	. (do { local $/; <$fh> })
915	. "\n};\n1";
916
917	unless (eval $source) {
918	my $msg = $@ ? "$path: $@\n"
919	: "extension disabled.\n";
920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921	warn $@;
922	warn "mandatory extension failed to load, exiting.\n";
923	exit 1;
924	}
925	die $@;
926	}
927
928	push @EXTS, $pkg;
929	}
930
931	sub load_extensions {	1260	sub load_extensions {
		1261	cf::sync_job {
		1262	my %todo;
		1263
932	for my $ext (<$LIBDIR/*.ext>) {	1264	for my $path (<$LIBDIR/*.ext>) {
933	next unless -r $ext;	1265	next unless -r $path;
934	eval {	1266
935	load_extension $ext;	1267	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1268	my $base = $1;
		1269	my $pkg = $1;
		1270	$pkg =~ s/[^[:word:]]/_/g;
		1271	$pkg = "ext::$pkg";
		1272
		1273	open my $fh, "<:utf8", $path
		1274	or die "$path: $!";
		1275
		1276	my $source = do { local $/; <$fh> };
		1277
		1278	my %ext = (
		1279	path => $path,
		1280	base => $base,
		1281	pkg => $pkg,
		1282	);
		1283
		1284	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1285	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1286
		1287	$ext{source} =
		1288	"package $pkg; use strict; use utf8;\n"
		1289	. "#line 1 \"$path\"\n{\n"
		1290	. $source
		1291	. "\n};\n1";
		1292
		1293	$todo{$base} = \%ext;
		1294	}
		1295
		1296	my %done;
		1297	while (%todo) {
		1298	my $progress;
		1299
		1300	while (my ($k, $v) = each %todo) {
		1301	for (split /,\s*/, $v->{meta}{depends}) {
		1302	goto skip
		1303	unless exists $done{$_};
		1304	}
		1305
		1306	warn "... loading '$k' into '$v->{pkg}'\n";
		1307
		1308	unless (eval $v->{source}) {
		1309	my $msg = $@ ? "$v->{path}: $@\n"
		1310	: "$v->{base}: extension inactive.\n";
		1311
		1312	if (exists $v->{meta}{mandatory}) {
		1313	warn $msg;
		1314	warn "mandatory extension failed to load, exiting.\n";
		1315	exit 1;
		1316	}
		1317
		1318	warn $msg;
		1319	}
		1320
		1321	$done{$k} = delete $todo{$k};
		1322	push @EXTS, $v->{pkg};
		1323	$progress = 1;
936	1	1324	}
937	} or warn "$ext not loaded: $@";	1325
		1326	skip:
		1327	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1328	unless $progress;
		1329	}
938	}	1330	};
939	}	1331	}
940		1332
941	#############################################################################	1333	#############################################################################
942		1334
		1335	=back
		1336
943	=head2 CORE EXTENSIONS	1337	=head2 CORE EXTENSIONS
944		1338
945	Functions and methods that extend core crossfire objects.	1339	Functions and methods that extend core crossfire objects.
946		1340
947	=cut	1341	=cut
…		…
952		1346
953	=head3 cf::player	1347	=head3 cf::player
954		1348
955	=over 4	1349	=over 4
956		1350
		1351	=item cf::player::num_playing
		1352
		1353	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1354
		1355	=cut
		1356
		1357	sub num_playing {
		1358	scalar grep
		1359	$_->ob->map
		1360	&& !$_->hidden
		1361	&& !$_->ob->flag (cf::FLAG_WIZ),
		1362	cf::player::list
		1363	}
		1364
957	=item cf::player::find $login	1365	=item cf::player::find $login
958		1366
959	Returns the given player object, loading it if necessary (might block).	1367	Returns the given player object, loading it if necessary (might block).
960		1368
961	=cut	1369	=cut
962		1370
963	sub playerdir($) {	1371	sub playerdir($) {
964	cf::localdir	1372	"$PLAYERDIR/"
965	. "/"
966	. cf::playerdir
967	. "/"
968	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1373	. (ref $_[0] ? $_[0]->ob->name : $_[0])
969	}	1374	}
970		1375
971	sub path($) {	1376	sub path($) {
972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1377	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973		1378
974	(playerdir $login) . "/$login.pl"	1379	(playerdir $login) . "/playerdata"
975	}	1380	}
976		1381
977	sub find_active($) {	1382	sub find_active($) {
978	$cf::PLAYER{$_[0]}	1383	$cf::PLAYER{$_[0]}
979	and $cf::PLAYER{$_[0]}->active	1384	and $cf::PLAYER{$_[0]}->active
…		…
992	my $login = $_[0];	1397	my $login = $_[0];
993		1398
994	my $guard = cf::lock_acquire "user_find:$login";	1399	my $guard = cf::lock_acquire "user_find:$login";
995		1400
996	$cf::PLAYER{$_[0]} || do {	1401	$cf::PLAYER{$_[0]} || do {
997	my $pl = load_pl path $login	1402	# rename old playerfiles to new ones
		1403	#TODO: remove when no longer required
		1404	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1405	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1406	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1407	aio_unlink +(playerdir $login) . "/$login.pl";
		1408
		1409	my $f = new_from_file cf::object::thawer path $login
998	or return;	1410	or return;
		1411
		1412	my $pl = cf::player::load_pl $f
		1413	or return;
		1414	local $cf::PLAYER_LOADING{$login} = $pl;
		1415	$f->resolve_delayed_derefs;
999	$cf::PLAYER{$login} = $pl	1416	$cf::PLAYER{$login} = $pl
1000	}	1417	}
1001	}	1418	}
1002	}	1419	}
1003		1420
…		…
1013		1430
1014	aio_mkdir playerdir $pl, 0770;	1431	aio_mkdir playerdir $pl, 0770;
1015	$pl->{last_save} = $cf::RUNTIME;	1432	$pl->{last_save} = $cf::RUNTIME;
1016		1433
1017	$pl->save_pl ($path);	1434	$pl->save_pl ($path);
1018	Coro::cede;	1435	cf::cede_to_tick;
1019	}	1436	}
1020		1437
1021	sub new($) {	1438	sub new($) {
1022	my ($login) = @_;	1439	my ($login) = @_;
1023		1440
…		…
1029	$cf::PLAYER{$login} = $self;	1446	$cf::PLAYER{$login} = $self;
1030		1447
1031	$self	1448	$self
1032	}	1449	}
1033		1450
		1451	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1452
		1453	=cut
		1454
		1455	sub send_msg {
		1456	my $ns = shift->ns
		1457	or return;
		1458	$ns->send_msg (@_);
		1459	}
		1460
1034	=item $pl->quit_character	1461	=item $pl->quit_character
1035		1462
1036	Nukes the player without looking back. If logged in, the connection will	1463	Nukes the player without looking back. If logged in, the connection will
1037	be destroyed. May block for a long time.	1464	be destroyed. May block for a long time.
1038		1465
1039	=cut	1466	=cut
1040		1467
1041	sub quit_character {	1468	sub quit_character {
1042	my ($pl) = @_;	1469	my ($pl) = @_;
		1470
		1471	my $name = $pl->ob->name;
1043		1472
1044	$pl->{deny_save} = 1;	1473	$pl->{deny_save} = 1;
1045	$pl->password ("*"); # this should lock out the player until we nuked the dir	1474	$pl->password ("*"); # this should lock out the player until we nuked the dir
1046		1475
1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1476	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1052	my $path = playerdir $pl;	1481	my $path = playerdir $pl;
1053	my $temp = "$path~$cf::RUNTIME~deleting~";	1482	my $temp = "$path~$cf::RUNTIME~deleting~";
1054	aio_rename $path, $temp;	1483	aio_rename $path, $temp;
1055	delete $cf::PLAYER{$pl->ob->name};	1484	delete $cf::PLAYER{$pl->ob->name};
1056	$pl->destroy;	1485	$pl->destroy;
		1486
		1487	my $prefix = qr<^~\Q$name\E/>;
		1488
		1489	# nuke player maps
		1490	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1491
1057	IO::AIO::aio_rmtree $temp;	1492	IO::AIO::aio_rmtree $temp;
		1493	}
		1494
		1495	=item $pl->kick
		1496
		1497	Kicks a player out of the game. This destroys the connection.
		1498
		1499	=cut
		1500
		1501	sub kick {
		1502	my ($pl, $kicker) = @_;
		1503
		1504	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1505	$pl->killer ("kicked");
		1506	$pl->ns->destroy;
1058	}	1507	}
1059		1508
1060	=item cf::player::list_logins	1509	=item cf::player::list_logins
1061		1510
1062	Returns am arrayref of all valid playernames in the system, can take a	1511	Returns am arrayref of all valid playernames in the system, can take a
1063	while and may block, so not sync_job-capable, ever.	1512	while and may block, so not sync_job-capable, ever.
1064		1513
1065	=cut	1514	=cut
1066		1515
1067	sub list_logins {	1516	sub list_logins {
1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1517	my $dirs = aio_readdir $PLAYERDIR
1069	or return [];	1518	or return [];
1070		1519
1071	my @logins;	1520	my @logins;
1072		1521
1073	for my $login (@$dirs) {	1522	for my $login (@$dirs) {
		1523	my $path = path $login;
		1524
		1525	# a .pst is a dead give-away for a valid player
		1526	unless (-e "$path.pst") {
1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1527	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075	aio_read $fh, 0, 512, my $buf, 0 or next;	1528	aio_read $fh, 0, 512, my $buf, 0 or next;
1076	$buf !~ /^password -------------$/m or next; # official not-valid tag	1529	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1530	}
1077		1531
1078	utf8::decode $login;	1532	utf8::decode $login;
1079	push @logins, $login;	1533	push @logins, $login;
1080	}	1534	}
1081		1535
…		…
1108	}	1562	}
1109		1563
1110	\@paths	1564	\@paths
1111	}	1565	}
1112		1566
		1567	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1568
		1569	Expand crossfire pod fragments into protocol xml.
		1570
		1571	=cut
		1572
		1573	use re 'eval';
		1574
		1575	my $group;
		1576	my $interior; $interior = qr{
		1577	# match a pod interior sequence sans C<< >>
		1578	(?:
		1579	\ (.*?)\ (?{ $group = $^N })
		1580	| < (??{$interior}) >
		1581	)
		1582	}x;
		1583
		1584	sub expand_cfpod {
		1585	my ($self, $pod) = @_;
		1586
		1587	my $xml;
		1588
		1589	while () {
		1590	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1591	$group = $1;
		1592
		1593	$group =~ s/&/&amp;/g;
		1594	$group =~ s/</&lt;/g;
		1595
		1596	$xml .= $group;
		1597	} elsif ($pod =~ m%\G
		1598	([BCGHITU])
		1599	<
		1600	(?:
		1601	([^<>]*) (?{ $group = $^N })
		1602	| < $interior >
		1603	)
		1604	>
		1605	%gcsx
		1606	) {
		1607	my ($code, $data) = ($1, $group);
		1608
		1609	if ($code eq "B") {
		1610	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1611	} elsif ($code eq "I") {
		1612	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1613	} elsif ($code eq "U") {
		1614	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1615	} elsif ($code eq "C") {
		1616	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1617	} elsif ($code eq "T") {
		1618	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1619	} elsif ($code eq "G") {
		1620	my ($male, $female) = split /\|/, $data;
		1621	$data = $self->gender ? $female : $male;
		1622	$xml .= expand_cfpod ($self, $data);
		1623	} elsif ($code eq "H") {
		1624	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1625	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1626	"")
		1627	[$self->{hintmode}];
		1628	} else {
		1629	$xml .= "error processing '$code($data)' directive";
		1630	}
		1631	} else {
		1632	if ($pod =~ /\G(.+)/) {
		1633	warn "parse error while expanding $pod (at $1)";
		1634	}
		1635	last;
		1636	}
		1637	}
		1638
		1639	for ($xml) {
		1640	# create single paragraphs (very hackish)
		1641	s/(?<=\S)\n(?=\w)/ /g;
		1642
		1643	# compress some whitespace
		1644	s/\s+\n/\n/g; # ws line-ends
		1645	s/\n\n+/\n/g; # double lines
		1646	s/^\n+//; # beginning lines
		1647	s/\n+$//; # ending lines
		1648	}
		1649
		1650	$xml
		1651	}
		1652
		1653	no re 'eval';
		1654
		1655	sub hintmode {
		1656	$_[0]{hintmode} = $_[1] if @_ > 1;
		1657	$_[0]{hintmode}
		1658	}
		1659
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1114		1661
1115	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1116		1663
1117	=cut	1664	=cut
1118		1665
1119	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1120	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1121		1668
1122	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1123
1124	$self->send ("ext " . cf::to_json \%msg);
1125	}	1670	}
1126		1671
1127	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1128		1712
1129	=back	1713	=back
1130
1131		1714
1132	=head3 cf::map	1715	=head3 cf::map
1133		1716
1134	=over 4	1717	=over 4
1135		1718
…		…
1190	my ($self, $merge) = @_;	1773	my ($self, $merge) = @_;
1191		1774
1192	# we have to keep some variables in memory intact	1775	# we have to keep some variables in memory intact
1193	local $self->{path};	1776	local $self->{path};
1194	local $self->{load_path};	1777	local $self->{load_path};
1195	local $self->{deny_save};
1196	local $self->{deny_reset};
1197		1778
1198	$self->SUPER::thawer_merge ($merge);	1779	$self->SUPER::thawer_merge ($merge);
1199	}	1780	}
1200		1781
1201	sub normalise {	1782	sub normalise {
…		…
1248	$self->init; # pass $1 etc.	1829	$self->init; # pass $1 etc.
1249	return $self;	1830	return $self;
1250	}	1831	}
1251	}	1832	}
1252		1833
1253	Carp::carp "unable to resolve path '$path' (base '$base').";	1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
1254	()	1835	()
1255	}	1836	}
1256		1837
1257	sub init {	1838	sub init {
1258	my ($self) = @_;	1839	my ($self) = @_;
…		…
1273		1854
1274	# the original (read-only) location	1855	# the original (read-only) location
1275	sub load_path {	1856	sub load_path {
1276	my ($self) = @_;	1857	my ($self) = @_;
1277		1858
1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1859	"$MAPDIR/$self->{path}.map"
1279	}	1860	}
1280		1861
1281	# the temporary/swap location	1862	# the temporary/swap location
1282	sub save_path {	1863	sub save_path {
1283	my ($self) = @_;	1864	my ($self) = @_;
1284		1865
1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1867	"$TMPDIR/$path.map"
1287	}	1868	}
1288		1869
1289	# the unique path, undef == no special unique path	1870	# the unique path, undef == no special unique path
1290	sub uniq_path {	1871	sub uniq_path {
1291	my ($self) = @_;	1872	my ($self) = @_;
1292		1873
1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1875	"$UNIQUEDIR/$path"
1295	}	1876	}
1296		1877
1297	# and all this just because we cannot iterate over	1878	# and all this just because we cannot iterate over
1298	# all maps in C++...	1879	# all maps in C++...
1299	sub change_all_map_light {	1880	sub change_all_map_light {
…		…
1301		1882
1302	$_->change_map_light ($change)	1883	$_->change_map_light ($change)
1303	for grep $_->outdoor, values %cf::MAP;	1884	for grep $_->outdoor, values %cf::MAP;
1304	}	1885	}
1305		1886
		1887	sub decay_objects {
		1888	my ($self) = @_;
		1889
		1890	return if $self->{deny_reset};
		1891
		1892	$self->do_decay_objects;
		1893	}
		1894
1306	sub unlink_save {	1895	sub unlink_save {
1307	my ($self) = @_;	1896	my ($self) = @_;
1308		1897
1309	utf8::encode (my $save = $self->save_path);	1898	utf8::encode (my $save = $self->save_path);
1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1899	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1900	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313	#d#TODO remove .map and also nuke
1314	$save =~ s/\.map// or return;#d#
1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317	}	1901	}
1318		1902
1319	sub load_header_from($) {	1903	sub load_header_from($) {
1320	my ($self, $path) = @_;	1904	my ($self, $path) = @_;
1321		1905
1322	utf8::encode $path;	1906	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	1907	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	or return;	1908	or return;
		1909
		1910	$self->_load_header ($f)
		1911	or return;
		1912
		1913	local $MAP_LOADING{$self->{path}} = $self;
		1914	$f->resolve_delayed_derefs;
1328		1915
1329	$self->{load_path} = $path;	1916	$self->{load_path} = $path;
1330		1917
1331	1	1918	1
1332	}	1919	}
…		…
1371	$self->load_header_orig	1958	$self->load_header_orig
1372	or return;	1959	or return;
1373	$self->prepare_orig;	1960	$self->prepare_orig;
1374	}	1961	}
1375		1962
		1963	$self->{deny_reset} = 1
		1964	if $self->no_reset;
		1965
		1966	$self->default_region (cf::region::find_by_path $self->{path})
		1967	unless $self->default_region;
		1968
1376	1	1969	1
1377	}	1970	}
1378		1971
1379	sub find;	1972	sub find;
1380	sub find {	1973	sub find {
1381	my ($path, $origin) = @_;	1974	my ($path, $origin) = @_;
1382		1975
1383	$path = normalise $path, $origin && $origin->path;	1976	$path = normalise $path, $origin && $origin->path;
1384		1977
		1978	cf::lock_wait "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	1979	cf::lock_wait "map_find:$path";
1386		1980
1387	$cf::MAP{$path} || do {	1981	$cf::MAP{$path} || do {
1388	my $guard = cf::lock_acquire "map_find:$path";	1982	my $guard1 = cf::lock_acquire "map_find:$path";
		1983	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1984
1389	my $map = new_from_path cf::map $path	1985	my $map = new_from_path cf::map $path
1390	or return;	1986	or return;
1391		1987
1392	$map->{last_save} = $cf::RUNTIME;	1988	$map->{last_save} = $cf::RUNTIME;
1393		1989
1394	$map->load_header	1990	$map->load_header
1395	or return;	1991	or return;
1396		1992
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1993	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	1994	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	1995	#$cf::WAIT_FOR_TICK->wait;
		1996	undef $guard1;
		1997	undef $guard2;
1400	$map->reset;	1998	$map->reset;
1401	undef $guard;
1402	return find $path;	1999	return find $path;
1403	}	2000	}
1404		2001
1405	$cf::MAP{$path} = $map	2002	$cf::MAP{$path} = $map
1406	}	2003	}
…		…
1413	my ($self) = @_;	2010	my ($self) = @_;
1414		2011
1415	local $self->{deny_reset} = 1; # loading can take a long time	2012	local $self->{deny_reset} = 1; # loading can take a long time
1416		2013
1417	my $path = $self->{path};	2014	my $path = $self->{path};
		2015
		2016	{
1418	my $guard = cf::lock_acquire "map_load:$path";	2017	my $guard = cf::lock_acquire "map_data:$path";
1419		2018
		2019	return unless $self->valid;
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2020	return unless $self->in_memory == cf::MAP_SWAPPED;
1421		2021
1422	$self->in_memory (cf::MAP_LOADING);	2022	$self->in_memory (cf::MAP_LOADING);
1423		2023
1424	$self->alloc;	2024	$self->alloc;
1425		2025
1426	$self->pre_load;	2026	$self->pre_load;
		2027	cf::cede_to_tick;
1427		2028
1428	$self->_load_objects ($self->{load_path}, 1)	2029	my $f = new_from_file cf::object::thawer $self->{load_path};
		2030	$f->skip_block;
		2031	$self->_load_objects ($f)
1429	or return;	2032	or return;
1430		2033
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2034	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1432	if delete $self->{load_original};	2035	if delete $self->{load_original};
1433		2036
1434	if (my $uniq = $self->uniq_path) {	2037	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2038	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2039	unless (aio_stat $uniq) {
		2040	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2041	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2042	$self->_load_objects ($f);
		2043	$f->resolve_delayed_derefs;
		2044	}
1439	}	2045	}
1440	}	2046	}
1441		2047
1442	Coro::cede;	2048	$f->resolve_delayed_derefs;
1443		2049
		2050	cf::cede_to_tick;
1444	# now do the right thing for maps	2051	# now do the right thing for maps
1445	$self->link_multipart_objects;	2052	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2053	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2054	unless $self->difficulty;
1455	Coro::cede;	2055	cf::cede_to_tick;
		2056
		2057	unless ($self->{deny_activate}) {
		2058	$self->decay_objects;
		2059	$self->fix_auto_apply;
		2060	$self->update_buttons;
		2061	cf::cede_to_tick;
		2062	$self->set_darkness_map;
		2063	cf::cede_to_tick;
1456	$self->activate;	2064	$self->activate;
		2065	}
		2066
		2067	$self->{last_save} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
		2069
		2070	$self->in_memory (cf::MAP_IN_MEMORY);
1457	}	2071	}
1458		2072
1459	$self->post_load;	2073	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	2074	}
1463		2075
1464	sub customise_for {	2076	sub customise_for {
1465	my ($self, $ob) = @_;	2077	my ($self, $ob) = @_;
1466		2078
1467	return find "~" . $ob->name . "/" . $self->{path}	2079	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2080	if $self->per_player;
1469		2081
		2082	# return find "?party/" . $ob->name . "/" . $self->{path}
		2083	# if $self->per_party;
		2084
1470	$self	2085	$self
1471	}	2086	}
1472		2087
1473	# find and load all maps in the 3x3 area around a map	2088	# find and load all maps in the 3x3 area around a map
1474	sub load_diag {	2089	sub load_neighbours {
1475	my ($map) = @_;	2090	my ($map) = @_;
1476		2091
1477	my @diag; # diagonal neighbours	2092	my @neigh; # diagonal neighbours
1478		2093
1479	for (0 .. 3) {	2094	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)	2095	my $neigh = $map->tile_path ($_)
1481	or next;	2096	or next;
1482	$neigh = find $neigh, $map	2097	$neigh = find $neigh, $map
1483	or next;	2098	or next;
1484	$neigh->load;	2099	$neigh->load;
1485		2100
		2101	push @neigh,
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2102	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2103	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}	2104	}
1489		2105
1490	for (@diag) {	2106	for (grep defined $_->[0], @neigh) {
		2107	my ($path, $origin) = @$_;
1491	my $neigh = find @$_	2108	my $neigh = find $path, $origin
1492	or next;	2109	or next;
1493	$neigh->load;	2110	$neigh->load;
1494	}	2111	}
1495	}	2112	}
1496		2113
…		…
1501	}	2118	}
1502		2119
1503	sub do_load_sync {	2120	sub do_load_sync {
1504	my ($map) = @_;	2121	my ($map) = @_;
1505		2122
		2123	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2124	if $Coro::current == $Coro::main;
		2125
1506	cf::sync_job { $map->load };	2126	cf::sync_job { $map->load };
1507	}	2127	}
1508		2128
1509	our %MAP_PREFETCH;	2129	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2130	our $MAP_PREFETCHER = undef;
1511		2131
1512	sub find_async {	2132	sub find_async {
1513	my ($path, $origin) = @_;	2133	my ($path, $origin, $load) = @_;
1514		2134
1515	$path = normalise $path, $origin && $origin->{path};	2135	$path = normalise $path, $origin && $origin->{path};
1516		2136
1517	if (my $map = $cf::MAP{$path}) {	2137	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2138	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1519	}	2139	}
1520		2140
1521	undef $MAP_PREFETCH{$path};	2141	$MAP_PREFETCH{$path} |= $load;
		2142
1522	$MAP_PREFETCHER ||= cf::async {	2143	$MAP_PREFETCHER ||= cf::async {
		2144	$Coro::current->{desc} = "map prefetcher";
		2145
1523	while (%MAP_PREFETCH) {	2146	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2147	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2148	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2149	$map->load if $v;
		2150	}
1528		2151
1529	delete $MAP_PREFETCH{$path};	2152	delete $MAP_PREFETCH{$k};
1530	}	2153	}
1531	}	2154	}
1532	undef $MAP_PREFETCHER;	2155	undef $MAP_PREFETCHER;
1533	};	2156	};
1534	$MAP_PREFETCHER->prio (6);	2157	$MAP_PREFETCHER->prio (6);
…		…
1537	}	2160	}
1538		2161
1539	sub save {	2162	sub save {
1540	my ($self) = @_;	2163	my ($self) = @_;
1541		2164
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2166
1544	$self->{last_save} = $cf::RUNTIME;	2167	$self->{last_save} = $cf::RUNTIME;
1545		2168
1546	return unless $self->dirty;	2169	return unless $self->dirty;
1547		2170
…		…
1553	return if $self->{deny_save};	2176	return if $self->{deny_save};
1554		2177
1555	local $self->{last_access} = $self->last_access;#d#	2178	local $self->{last_access} = $self->last_access;#d#
1556		2179
1557	cf::async {	2180	cf::async {
		2181	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2182	$_->contr->save for $self->players;
1559	};	2183	};
1560		2184
1561	if ($uniq) {	2185	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1570	my ($self) = @_;	2194	my ($self) = @_;
1571		2195
1572	# save first because save cedes	2196	# save first because save cedes
1573	$self->save;	2197	$self->save;
1574		2198
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2199	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2200
1577	return if $self->players;	2201	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;	2202	return if $self->in_memory != cf::MAP_IN_MEMORY;
1579	return if $self->{deny_save};	2203	return if $self->{deny_save};
1580		2204
		2205	$self->in_memory (cf::MAP_SWAPPED);
		2206
		2207	$self->deactivate;
		2208	$_->clear_links_to ($self) for values %cf::MAP;
1581	$self->clear;	2209	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2210	}
1584		2211
1585	sub reset_at {	2212	sub reset_at {
1586	my ($self) = @_;	2213	my ($self) = @_;
1587		2214
1588	# TODO: safety, remove and allow resettable per-player maps	2215	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2216	return 1e99 if $self->{deny_reset};
1591		2217
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2218	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2219	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594		2220
…		…
1605	my ($self) = @_;	2231	my ($self) = @_;
1606		2232
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2233	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2234
1609	return if $self->players;	2235	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2236
1612	warn "resetting map ", $self->path;#d#	2237	warn "resetting map ", $self->path;
1613		2238
1614	$self->in_memory (cf::MAP_SWAPPED);	2239	$self->in_memory (cf::MAP_SWAPPED);
1615		2240
1616	# need to save uniques path	2241	# need to save uniques path
1617	unless ($self->{deny_save}) {	2242	unless ($self->{deny_save}) {
…		…
1621	if $uniq;	2246	if $uniq;
1622	}	2247	}
1623		2248
1624	delete $cf::MAP{$self->path};	2249	delete $cf::MAP{$self->path};
1625		2250
		2251	$self->deactivate;
		2252	$_->clear_links_to ($self) for values %cf::MAP;
1626	$self->clear;	2253	$self->clear;
1627
1628	$_->clear_links_to ($self) for values %cf::MAP;
1629		2254
1630	$self->unlink_save;	2255	$self->unlink_save;
1631	$self->destroy;	2256	$self->destroy;
1632	}	2257	}
1633		2258
1634	my $nuke_counter = "aaaa";	2259	my $nuke_counter = "aaaa";
1635		2260
1636	sub nuke {	2261	sub nuke {
1637	my ($self) = @_;	2262	my ($self) = @_;
1638		2263
		2264	{
		2265	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2266
1639	delete $cf::MAP{$self->path};	2267	delete $cf::MAP{$self->path};
1640		2268
1641	$self->unlink_save;	2269	$self->unlink_save;
1642		2270
1643	bless $self, "cf::map";	2271	bless $self, "cf::map";
1644	delete $self->{deny_reset};	2272	delete $self->{deny_reset};
1645	$self->{deny_save} = 1;	2273	$self->{deny_save} = 1;
1646	$self->reset_timeout (1);	2274	$self->reset_timeout (1);
1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2275	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648		2276
1649	$cf::MAP{$self->path} = $self;	2277	$cf::MAP{$self->path} = $self;
		2278	}
1650		2279
1651	$self->reset; # polite request, might not happen	2280	$self->reset; # polite request, might not happen
		2281	}
		2282
		2283	=item $maps = cf::map::tmp_maps
		2284
		2285	Returns an arrayref with all map paths of currently instantiated and saved
		2286	maps. May block.
		2287
		2288	=cut
		2289
		2290	sub tmp_maps() {
		2291	[
		2292	map {
		2293	utf8::decode $_;
		2294	/\.map$/
		2295	? normalise $_
		2296	: ()
		2297	} @{ aio_readdir $TMPDIR or [] }
		2298	]
		2299	}
		2300
		2301	=item $maps = cf::map::random_maps
		2302
		2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	random maps. May block.
		2305
		2306	=cut
		2307
		2308	sub random_maps() {
		2309	[
		2310	map {
		2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise "?random/$_"
		2314	: ()
		2315	} @{ aio_readdir $RANDOMDIR or [] }
		2316	]
1652	}	2317	}
1653		2318
1654	=item cf::map::unique_maps	2319	=item cf::map::unique_maps
1655		2320
1656	Returns an arrayref of paths of all shared maps that have	2321	Returns an arrayref of paths of all shared maps that have
1657	instantiated unique items. May block.	2322	instantiated unique items. May block.
1658		2323
1659	=cut	2324	=cut
1660		2325
1661	sub unique_maps() {	2326	sub unique_maps() {
1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2327	[
1663	or return;	2328	map {
1664
1665	my @paths;
1666
1667	for (@$files) {
1668	utf8::decode $_;	2329	utf8::decode $_;
1669	next if /\.pst$/;	2330	/\.map$/
1670	next unless /^$PATH_SEP/o;	2331	? normalise $_
1671		2332	: ()
1672	push @paths, cf::map::normalise $_;	2333	} @{ aio_readdir $UNIQUEDIR or [] }
1673	}	2334	]
1674
1675	\@paths
1676	}	2335	}
1677		2336
1678	package cf;	2337	package cf;
1679		2338
1680	=back	2339	=back
…		…
1698	map { $_, inv_recursive_ $_->inv } @_	2357	map { $_, inv_recursive_ $_->inv } @_
1699	}	2358	}
1700		2359
1701	sub inv_recursive {	2360	sub inv_recursive {
1702	inv_recursive_ inv $_[0]	2361	inv_recursive_ inv $_[0]
		2362	}
		2363
		2364	=item $ref = $ob->ref
		2365
		2366	creates and returns a persistent reference to an objetc that can be stored as a string.
		2367
		2368	=item $ob = cf::object::deref ($refstring)
		2369
		2370	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2371	even if the object actually exists. May block.
		2372
		2373	=cut
		2374
		2375	sub deref {
		2376	my ($ref) = @_;
		2377
		2378	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2379	my ($uuid, $name) = ($1, $2);
		2380	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2381	or return;
		2382	$pl->ob->uuid eq $uuid
		2383	or return;
		2384
		2385	$pl->ob
		2386	} else {
		2387	warn "$ref: cannot resolve object reference\n";
		2388	undef
		2389	}
1703	}	2390	}
1704		2391
1705	package cf;	2392	package cf;
1706		2393
1707	=back	2394	=back
…		…
1726		2413
1727	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2414	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728		2415
1729	if ($self->{record_replies}) {	2416	if ($self->{record_replies}) {
1730	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2417	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2418
1731	} else {	2419	} else {
		2420	my $pl = $self->contr;
		2421
		2422	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2423	my $dialog = $pl->{npc_dialog};
		2424	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2425
		2426	} else {
1732	$msg = $npc->name . " says: $msg" if $npc;	2427	$msg = $npc->name . " says: $msg" if $npc;
1733	$self->message ($msg, $flags);	2428	$self->message ($msg, $flags);
		2429	}
1734	}	2430	}
		2431	}
		2432
		2433	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2434
		2435	=cut
		2436
		2437	sub cf::object::send_msg {
		2438	my $pl = shift->contr
		2439	or return;
		2440	$pl->send_msg (@_);
1735	}	2441	}
1736		2442
1737	=item $player_object->may ("access")	2443	=item $player_object->may ("access")
1738		2444
1739	Returns wether the given player is authorized to access resource "access"	2445	Returns wether the given player is authorized to access resource "access"
…		…
1786	$self->deactivate_recursive;	2492	$self->deactivate_recursive;
1787		2493
1788	return if UNIVERSAL::isa $self->map, "ext::map_link";	2494	return if UNIVERSAL::isa $self->map, "ext::map_link";
1789		2495
1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2496	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791	if $self->map;	2497	if $self->map && $self->map->{path} ne "{link}";
1792		2498
1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2499	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1794	}	2500	}
1795		2501
1796	sub cf::object::player::leave_link {	2502	sub cf::object::player::leave_link {
1797	my ($self, $map, $x, $y) = @_;	2503	my ($self, $map, $x, $y) = @_;
		2504
		2505	return unless $self->contr->active;
1798		2506
1799	my $link_pos = delete $self->{_link_pos};	2507	my $link_pos = delete $self->{_link_pos};
1800		2508
1801	unless ($map) {	2509	unless ($map) {
1802	# restore original map position	2510	# restore original map position
…		…
1816	# use -1 or undef as default coordinates, not 0, 0	2524	# use -1 or undef as default coordinates, not 0, 0
1817	($x, $y) = ($map->enter_x, $map->enter_y)	2525	($x, $y) = ($map->enter_x, $map->enter_y)
1818	if $x <=0 && $y <= 0;	2526	if $x <=0 && $y <= 0;
1819		2527
1820	$map->load;	2528	$map->load;
1821	$map->load_diag;	2529	$map->load_neighbours;
1822		2530
1823	return unless $self->contr->active;	2531	return unless $self->contr->active;
1824	$self->activate_recursive;	2532	$self->activate_recursive;
		2533
		2534	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1825	$self->enter_map ($map, $x, $y);	2535	$self->enter_map ($map, $x, $y);
1826	}	2536	}
1827		2537
1828	cf::player->attach (	2538	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1829	on_logout => sub {
1830	my ($pl) = @_;
1831		2539
1832	# abort map switching before logout	2540	Moves the player to the given map-path and coordinates by first freezing
1833	if ($pl->ob->{_link_pos}) {	2541	her, loading and preparing them map, calling the provided $check callback
1834	cf::sync_job {	2542	that has to return the map if sucecssful, and then unfreezes the player on
1835	$pl->ob->leave_link	2543	the new (success) or old (failed) map position. In either case, $done will
1836	};	2544	be called at the end of this process.
1837	}
1838	},
1839	on_login => sub {
1840	my ($pl) = @_;
1841		2545
1842	# try to abort aborted map switching on player login :)
1843	# should happen only on crashes
1844	if ($pl->ob->{_link_pos}) {
1845	$pl->ob->enter_link;
1846	(async {
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	$pl->ob->reply (undef,
1850	"There was an internal problem at your last logout, "
1851	. "the server will try to bring you to your intended destination in a second.",
1852	cf::NDI_RED);
1853	Coro::Timer::sleep 1;
1854	$pl->ob->leave_link;
1855	})->prio (2);
1856	}
1857	},
1858	);
1859
1860	=item $player_object->goto ($path, $x, $y)
1861
1862	=cut	2546	=cut
		2547
		2548	our $GOTOGEN;
1863		2549
1864	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1865	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
		2552
		2553	# do generation counting so two concurrent goto's will be executed in-order
		2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1866		2555
1867	$self->enter_link;	2556	$self->enter_link;
1868		2557
1869	(async {	2558	(async {
		2559	$Coro::current->{desc} = "player::goto $path $x $y";
		2560
		2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
1870	my $map = eval {	2580	my $map = eval {
1871	my $map = cf::map::find $path;	2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1872	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
		2585	$map = $check->($map) if $check && $map;
		2586	} else {
		2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
		2589
1873	$map	2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
1874	} or	2596	}
1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1876		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1877	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1878	})->prio (1);	2604	})->prio (1);
1879	}	2605	}
1880		2606
1881	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1882		2608
…		…
1919	$rmp->{origin_y} = $exit->y;	2645	$rmp->{origin_y} = $exit->y;
1920	}	2646	}
1921		2647
1922	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1923		2649
1924	my $data = cf::to_json $rmp;	2650	my $data = cf::encode_json $rmp;
1925	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2652	my $meta = "$RANDOMDIR/$md5.meta";
1927		2653
1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1929	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
1930	undef $fh;	2656	undef $fh;
1931	aio_rename "$meta~", $meta;	2657	aio_rename "$meta~", $meta;
…		…
1940		2666
1941	return unless $self->type == cf::PLAYER;	2667	return unless $self->type == cf::PLAYER;
1942		2668
1943	if ($exit->slaying eq "/!") {	2669	if ($exit->slaying eq "/!") {
1944	#TODO: this should de-fi-ni-te-ly not be a sync-job	2670	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2671	# the problem is that $exit might not survive long enough
		2672	# so it needs to be done right now, right here
1945	cf::sync_job { prepare_random_map $exit };	2673	cf::sync_job { prepare_random_map $exit };
1946	}	2674	}
1947		2675
1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2676	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949	my $hp = $exit->stats->hp;	2677	my $hp = $exit->stats->hp;
1950	my $sp = $exit->stats->sp;	2678	my $sp = $exit->stats->sp;
1951		2679
1952	$self->enter_link;	2680	$self->enter_link;
1953		2681
		2682	# if exit is damned, update players death & WoR home-position
		2683	$self->contr->savebed ($slaying, $hp, $sp)
		2684	if $exit->flag (FLAG_DAMNED);
		2685
1954	(async {	2686	(async {
		2687	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2688
1955	$self->deactivate_recursive; # just to be sure	2689	$self->deactivate_recursive; # just to be sure
1956	unless (eval {	2690	unless (eval {
1957	$self->goto ($slaying, $hp, $sp);	2691	$self->goto ($slaying, $hp, $sp);
1958		2692
1959	1;	2693	1;
1960	}) {	2694	}) {
1961	$self->message ("Something went wrong deep within the crossfire server. "	2695	$self->message ("Something went wrong deep within the crossfire server. "
1962	. "I'll try to bring you back to the map you were before. "	2696	. "I'll try to bring you back to the map you were before. "
1963	. "Please report this to the dungeon master!",	2697	. "Please report this to the dungeon master!",
1964	cf::NDI_UNIQUE | cf::NDI_RED);	2698	cf::NDI_UNIQUE | cf::NDI_RED);
1965		2699
1966	warn "ERROR in enter_exit: $@";	2700	warn "ERROR in enter_exit: $@";
1967	$self->leave_link;	2701	$self->leave_link;
1968	}	2702	}
1969	})->prio (1);	2703	})->prio (1);
…		…
1982		2716
1983	sub cf::client::send_drawinfo {	2717	sub cf::client::send_drawinfo {
1984	my ($self, $text, $flags) = @_;	2718	my ($self, $text, $flags) = @_;
1985		2719
1986	utf8::encode $text;	2720	utf8::encode $text;
1987	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2721	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1988	}	2722	}
1989		2723
		2724	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2725
		2726	Send a drawinfo or msg packet to the client, formatting the msg for the
		2727	client if neccessary. C<$type> should be a string identifying the type of
		2728	the message, with C<log> being the default. If C<$color> is negative, suppress
		2729	the message unless the client supports the msg packet.
		2730
		2731	=cut
		2732
		2733	# non-persistent channels (usually the info channel)
		2734	our %CHANNEL = (
		2735	"c/identify" => {
		2736	id => "infobox",
		2737	title => "Identify",
		2738	reply => undef,
		2739	tooltip => "Items recently identified",
		2740	},
		2741	"c/examine" => {
		2742	id => "infobox",
		2743	title => "Examine",
		2744	reply => undef,
		2745	tooltip => "Signs and other items you examined",
		2746	},
		2747	"c/book" => {
		2748	id => "infobox",
		2749	title => "Book",
		2750	reply => undef,
		2751	tooltip => "The contents of a note or book",
		2752	},
		2753	"c/lookat" => {
		2754	id => "infobox",
		2755	title => "Look",
		2756	reply => undef,
		2757	tooltip => "What you saw there",
		2758	},
		2759	"c/who" => {
		2760	id => "infobox",
		2761	title => "Players",
		2762	reply => undef,
		2763	tooltip => "Shows players who are currently online",
		2764	},
		2765	"c/body" => {
		2766	id => "infobox",
		2767	title => "Body Parts",
		2768	reply => undef,
		2769	tooltip => "Shows which body parts you posess and are available",
		2770	},
		2771	"c/uptime" => {
		2772	id => "infobox",
		2773	title => "Uptime",
		2774	reply => undef,
		2775	tooltip => "How long the server has been running since last restart",
		2776	},
		2777	"c/mapinfo" => {
		2778	id => "infobox",
		2779	title => "Map Info",
		2780	reply => undef,
		2781	tooltip => "Information related to the maps",
		2782	},
		2783	);
		2784
		2785	sub cf::client::send_msg {
		2786	my ($self, $channel, $msg, $color, @extra) = @_;
		2787
		2788	$msg = $self->pl->expand_cfpod ($msg);
		2789
		2790	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2791
		2792	# check predefined channels, for the benefit of C
		2793	if ($CHANNEL{$channel}) {
		2794	$channel = $CHANNEL{$channel};
		2795
		2796	$self->ext_msg (channel_info => $channel)
		2797	if $self->can_msg;
		2798
		2799	$channel = $channel->{id};
		2800
		2801	} elsif (ref $channel) {
		2802	# send meta info to client, if not yet sent
		2803	unless (exists $self->{channel}{$channel->{id}}) {
		2804	$self->{channel}{$channel->{id}} = $channel;
		2805	$self->ext_msg (channel_info => $channel)
		2806	if $self->can_msg;
		2807	}
		2808
		2809	$channel = $channel->{id};
		2810	}
		2811
		2812	return unless @extra || length $msg;
		2813
		2814	if ($self->can_msg) {
		2815	# default colour, mask it out
		2816	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2817	if $color & cf::NDI_DEF;
		2818
		2819	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2820	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2821	} else {
		2822	if ($color >= 0) {
		2823	# replace some tags by gcfclient-compatible ones
		2824	for ($msg) {
		2825	1 while
		2826	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2827	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2828	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2829	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2830	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2831	}
		2832
		2833	$color &= cf::NDI_COLOR_MASK;
		2834
		2835	utf8::encode $msg;
		2836
		2837	if (0 && $msg =~ /\[/) {
		2838	# COMMAND/INFO
		2839	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2840	} else {
		2841	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2842	$self->send_packet ("drawinfo $color $msg")
		2843	}
		2844	}
		2845	}
		2846	}
		2847
		2848	=item $client->ext_msg ($type, @msg)
		2849
		2850	Sends an ext event to the client.
		2851
		2852	=cut
		2853
		2854	sub cf::client::ext_msg($$@) {
		2855	my ($self, $type, @msg) = @_;
		2856
		2857	if ($self->extcmd == 2) {
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2859	} elsif ($self->extcmd == 1) { # TODO: remove
		2860	push @msg, msgtype => "event_$type";
		2861	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2862	}
		2863	}
		2864
		2865	=item $client->ext_reply ($msgid, @msg)
		2866
		2867	Sends an ext reply to the client.
		2868
		2869	=cut
		2870
		2871	sub cf::client::ext_reply($$@) {
		2872	my ($self, $id, @msg) = @_;
		2873
		2874	if ($self->extcmd == 2) {
		2875	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2876	} elsif ($self->extcmd == 1) {
		2877	#TODO: version 1, remove
		2878	unshift @msg, msgtype => "reply", msgid => $id;
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
1990		2882
1991	=item $success = $client->query ($flags, "text", \&cb)	2883	=item $success = $client->query ($flags, "text", \&cb)
1992		2884
1993	Queues a query to the client, calling the given callback with	2885	Queues a query to the client, calling the given callback with
1994	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2886	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1995	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2887	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1996		2888
1997	Queries can fail, so check the return code. Or don't, as queries will become	2889	Queries can fail, so check the return code. Or don't, as queries will
1998	reliable at some point in the future.	2890	become reliable at some point in the future.
1999		2891
2000	=cut	2892	=cut
2001		2893
2002	sub cf::client::query {	2894	sub cf::client::query {
2003	my ($self, $flags, $text, $cb) = @_;	2895	my ($self, $flags, $text, $cb) = @_;
…		…
2011	utf8::encode $text;	2903	utf8::encode $text;
2012	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2904	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2013		2905
2014	$self->send_packet ($self->{query_queue}[0][0])	2906	$self->send_packet ($self->{query_queue}[0][0])
2015	if @{ $self->{query_queue} } == 1;	2907	if @{ $self->{query_queue} } == 1;
		2908
		2909	1
2016	}	2910	}
2017		2911
2018	cf::client->attach (	2912	cf::client->attach (
		2913	on_connect => sub {
		2914	my ($ns) = @_;
		2915
		2916	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2917	},
2019	on_reply => sub {	2918	on_reply => sub {
2020	my ($ns, $msg) = @_;	2919	my ($ns, $msg) = @_;
2021		2920
2022	# this weird shuffling is so that direct followup queries	2921	# this weird shuffling is so that direct followup queries
2023	# get handled first	2922	# get handled first
…		…
2035	} else {	2934	} else {
2036	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2037	}	2936	}
2038	}	2937	}
2039	},	2938	},
		2939	on_exticmd => sub {
		2940	my ($ns, $buf) = @_;
		2941
		2942	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2943
		2944	if (ref $msg) {
		2945	my ($type, $reply, @payload) =
		2946	"ARRAY" eq ref $msg
		2947	? @$msg
		2948	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2949
		2950	my @reply;
		2951
		2952	if (my $cb = $EXTICMD{$type}) {
		2953	@reply = $cb->($ns, @payload);
		2954	}
		2955
		2956	$ns->ext_reply ($reply, @reply)
		2957	if $reply;
		2958
		2959	} else {
		2960	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2961	}
		2962
		2963	cf::override;
		2964	},
2040	);	2965	);
2041		2966
2042	=item $client->async (\&cb)	2967	=item $client->async (\&cb)
2043		2968
2044	Create a new coroutine, running the specified callback. The coroutine will	2969	Create a new coroutine, running the specified callback. The coroutine will
…		…
2085	our $safe = new Safe "safe";	3010	our $safe = new Safe "safe";
2086	our $safe_hole = new Safe::Hole;	3011	our $safe_hole = new Safe::Hole;
2087		3012
2088	$SIG{FPE} = 'IGNORE';	3013	$SIG{FPE} = 'IGNORE';
2089		3014
2090	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3015	$safe->permit_only (Opcode::opset qw(
		3016	:base_core :base_mem :base_orig :base_math
		3017	grepstart grepwhile mapstart mapwhile
		3018	sort time
		3019	));
2091		3020
2092	# here we export the classes and methods available to script code	3021	# here we export the classes and methods available to script code
2093		3022
2094	=pod	3023	=pod
2095		3024
2096	The following fucntions and emthods are available within a safe environment:	3025	The following functions and methods are available within a safe environment:
2097		3026
2098	cf::object contr pay_amount pay_player map	3027	cf::object
		3028	contr pay_amount pay_player map x y force_find force_add destroy
		3029	insert remove name archname title slaying race decrease_ob_nr
		3030
2099	cf::object::player player	3031	cf::object::player
2100	cf::player peaceful	3032	player
2101	cf::map trigger	3033
		3034	cf::player
		3035	peaceful
		3036
		3037	cf::map
		3038	trigger
2102		3039
2103	=cut	3040	=cut
2104		3041
2105	for (	3042	for (
2106	["cf::object" => qw(contr pay_amount pay_player map)],	3043	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3044	insert remove inv name archname title slaying race
		3045	decrease_ob_nr destroy)],
2107	["cf::object::player" => qw(player)],	3046	["cf::object::player" => qw(player)],
2108	["cf::player" => qw(peaceful)],	3047	["cf::player" => qw(peaceful)],
2109	["cf::map" => qw(trigger)],	3048	["cf::map" => qw(trigger)],
2110	) {	3049	) {
2111	no strict 'refs';	3050	no strict 'refs';
…		…
2182	=back	3121	=back
2183		3122
2184	=cut	3123	=cut
2185		3124
2186	#############################################################################	3125	#############################################################################
2187
2188	=head2 EXTENSION DATABASE SUPPORT
2189
2190	Crossfire maintains a very simple database for extension use. It can
2191	currently store anything that can be serialised using Storable, which
2192	excludes objects.
2193
2194	The parameter C<$family> should best start with the name of the extension
2195	using it, it should be unique.
2196
2197	=over 4
2198
2199	=item $value = cf::db_get $family => $key
2200
2201	Returns a single value from the database.
2202
2203	=item cf::db_put $family => $key => $value
2204
2205	Stores the given C<$value> in the family.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	sub db_init {
2212	unless ($DB) {
2213	$DB = BDB::db_create $DB_ENV;
2214
2215	cf::sync_job {
2216	eval {
2217	$DB->set_flags (BDB::CHKSUM);
2218
2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221	cf::cleanup "db_open(db): $!" if $!;
2222	};
2223	cf::cleanup "db_open(db): $@" if $@;
2224	};
2225
2226	my $path = cf::localdir . "/database.pst";
2227	if (stat $path) {
2228	cf::sync_job {
2229	my $pst = Storable::retrieve $path;
2230
2231	cf::db_put (board => data => $pst->{board});
2232	cf::db_put (guildrules => data => $pst->{guildrules});
2233	cf::db_put (rent => balance => $pst->{rent}{balance});
2234	BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236	unlink $path;
2237	};
2238	}
2239	}
2240	}
2241
2242	sub db_get($$) {
2243	my $key = "$_[0]/$_[1]";
2244
2245	cf::sync_job {
2246	BDB::db_get $DB, undef, $key, my $data;
2247
2248	$! ? ()
2249	: Compress::LZF::sthaw $data
2250	}
2251	}
2252
2253	sub db_put($$$) {
2254	BDB::dbreq_pri 4;
2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2256	}
2257
2258	#############################################################################
2259	# the server's init and main functions	3126	# the server's init and main functions
2260		3127
2261	sub load_resources {	3128	sub load_facedata($) {
2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3129	my ($path) = @_;
		3130
		3131	# HACK to clear player env face cache, we need some signal framework
		3132	# for this (global event?)
		3133	%ext::player_env::MUSIC_FACE_CACHE = ();
		3134
		3135	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3136
		3137	warn "loading facedata from $path\n";
		3138
		3139	my $facedata;
		3140	0 < aio_load $path, $facedata
		3141	or die "$path: $!";
		3142
		3143	$facedata = Coro::Storable::thaw $facedata;
		3144
		3145	$facedata->{version} == 2
		3146	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3147
		3148	# patch in the exptable
		3149	$facedata->{resource}{"res/exp_table"} = {
		3150	type => FT_RSRC,
		3151	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3152	};
		3153	cf::cede_to_tick;
		3154
		3155	{
		3156	my $faces = $facedata->{faceinfo};
		3157
		3158	while (my ($face, $info) = each %$faces) {
		3159	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3160
		3161	cf::face::set_visibility $idx, $info->{visibility};
		3162	cf::face::set_magicmap $idx, $info->{magicmap};
		3163	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3164	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3165
		3166	cf::cede_to_tick;
		3167	}
		3168
		3169	while (my ($face, $info) = each %$faces) {
		3170	next unless $info->{smooth};
		3171
		3172	my $idx = cf::face::find $face
		3173	or next;
		3174
		3175	if (my $smooth = cf::face::find $info->{smooth}) {
		3176	cf::face::set_smooth $idx, $smooth;
		3177	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3178	} else {
		3179	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3180	}
		3181
		3182	cf::cede_to_tick;
		3183	}
		3184	}
		3185
		3186	{
		3187	my $anims = $facedata->{animinfo};
		3188
		3189	while (my ($anim, $info) = each %$anims) {
		3190	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3191	cf::cede_to_tick;
		3192	}
		3193
		3194	cf::anim::invalidate_all; # d'oh
		3195	}
		3196
		3197	{
		3198	# TODO: for gcfclient pleasure, we should give resources
		3199	# that gcfclient doesn't grok a >10000 face index.
		3200	my $res = $facedata->{resource};
		3201
		3202	while (my ($name, $info) = each %$res) {
		3203	if (defined $info->{type}) {
		3204	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3205	my $data;
		3206
		3207	if ($info->{type} & 1) {
		3208	# prepend meta info
		3209
		3210	my $meta = $enc->encode ({
		3211	name => $name,
		3212	%{ $info->{meta} || {} },
		3213	});
		3214
		3215	$data = pack "(w/a*)*", $meta, $info->{data};
		3216	} else {
		3217	$data = $info->{data};
		3218	}
		3219
		3220	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3221	cf::face::set_type $idx, $info->{type};
		3222	} else {
		3223	$RESOURCE{$name} = $info;
		3224	}
		3225
		3226	cf::cede_to_tick;
		3227	}
		3228	}
		3229
		3230	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3231
		3232	1
		3233	}
		3234
		3235	cf::global->attach (on_resource_update => sub {
		3236	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3237	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3238
		3239	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3240	my $sound = $soundconf->{compat}[$_]
		3241	or next;
		3242
		3243	my $face = cf::face::find "sound/$sound->[1]";
		3244	cf::sound::set $sound->[0] => $face;
		3245	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3246	}
		3247
		3248	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3249	my $face = cf::face::find "sound/$v";
		3250	cf::sound::set $k => $face;
		3251	}
		3252	}
		3253	});
		3254
		3255	register_exticmd fx_want => sub {
		3256	my ($ns, $want) = @_;
		3257
		3258	while (my ($k, $v) = each %$want) {
		3259	$ns->fx_want ($k, $v);
		3260	}
		3261	};
		3262
		3263	sub reload_regions {
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	load_resource_file "$MAPDIR/regions"
2263	or die "unable to load regions file\n";#d#	3269	or die "unable to load regions file\n";
2264	}
2265		3270
2266	sub cfg_load {	3271	for (cf::region::list) {
		3272	$_->{match} = qr/$_->{match}/
		3273	if exists $_->{match};
		3274	}
		3275	}
		3276
		3277	sub reload_facedata {
		3278	load_facedata "$DATADIR/facedata"
		3279	or die "unable to load facedata\n";
		3280	}
		3281
		3282	sub reload_archetypes {
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	#d# NEED to laod twice to resolve forward references
		3286	# this really needs to be done in an extra post-pass
		3287	# (which needs to be synchronous, so solve it differently)
		3288	load_resource_file "$DATADIR/archetypes"
		3289	or die "unable to load archetypes\n";
		3290	}
		3291
		3292	sub reload_treasures {
		3293	load_resource_file "$DATADIR/treasures"
		3294	or die "unable to load treasurelists\n";
		3295	}
		3296
		3297	sub reload_resources {
		3298	warn "reloading resource files...\n";
		3299
		3300	reload_regions;
		3301	reload_facedata;
		3302	#reload_archetypes;#d#
		3303	reload_archetypes;
		3304	reload_treasures;
		3305
		3306	warn "finished reloading resource files\n";
		3307	}
		3308
		3309	sub init {
		3310	reload_resources;
		3311	}
		3312
		3313	sub reload_config {
2267	open my $fh, "<:utf8", cf::confdir . "/config"	3314	open my $fh, "<:utf8", "$CONFDIR/config"
2268	or return;	3315	or return;
2269		3316
2270	local $/;	3317	local $/;
2271	*CFG = YAML::Syck::Load <$fh>;	3318	*CFG = YAML::Syck::Load <$fh>;
2272		3319
…		…
2282	};	3329	};
2283	warn $@ if $@;	3330	warn $@ if $@;
2284	}	3331	}
2285	}	3332	}
2286		3333
2287	sub init {
2288	load_resources;
2289	}
2290
2291	sub main {	3334	sub main {
2292	# we must not ever block the main coroutine	3335	# we must not ever block the main coroutine
2293	local $Coro::idle = sub {	3336	local $Coro::idle = sub {
2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3337	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2295	(async {	3338	(async {
2296	Event::one_event;	3339	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3340	EV::loop EV::LOOP_ONESHOT;
2297	})->prio (Coro::PRIO_MAX);	3341	})->prio (Coro::PRIO_MAX);
2298	};	3342	};
2299		3343
2300	cfg_load;	3344	reload_config;
2301	db_init;	3345	db_init;
2302	load_extensions;	3346	load_extensions;
2303		3347
2304	$TICK_WATCHER->start;	3348	$TICK_WATCHER->start;
		3349	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2305	Event::loop;	3350	EV::loop;
2306	}	3351	}
2307		3352
2308	#############################################################################	3353	#############################################################################
2309	# initialisation and cleanup	3354	# initialisation and cleanup
2310		3355
2311	# install some emergency cleanup handlers	3356	# install some emergency cleanup handlers
2312	BEGIN {	3357	BEGIN {
		3358	our %SIGWATCHER = ();
2313	for my $signal (qw(INT HUP TERM)) {	3359	for my $signal (qw(INT HUP TERM)) {
2314	Event->signal (	3360	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2315	reentrant => 0,
2316	data => WF_AUTOCANCEL,
2317	signal => $signal,
2318	prio => 0,
2319	cb => sub {
2320	cf::cleanup "SIG$signal";	3361	cf::cleanup "SIG$signal";
2321	},
2322	);	3362	};
		3363	}
		3364	}
		3365
		3366	sub write_runtime {
		3367	my $runtime = "$LOCALDIR/runtime";
		3368
		3369	# first touch the runtime file to show we are still running:
		3370	# the fsync below can take a very very long time.
		3371
		3372	IO::AIO::aio_utime $runtime, undef, undef;
		3373
		3374	my $guard = cf::lock_acquire "write_runtime";
		3375
		3376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3377	or return;
		3378
		3379	my $value = $cf::RUNTIME + 90 + 10;
		3380	# 10 is the runtime save interval, for a monotonic clock
		3381	# 60 allows for the watchdog to kill the server.
		3382
		3383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3384	and return;
		3385
		3386	# always fsync - this file is important
		3387	aio_fsync $fh
		3388	and return;
		3389
		3390	# touch it again to show we are up-to-date
		3391	aio_utime $fh, undef, undef;
		3392
		3393	close $fh
		3394	or return;
		3395
		3396	aio_rename "$runtime~", $runtime
		3397	and return;
		3398
		3399	warn "runtime file written.\n";
		3400
2323	}	3401	1
2324	}	3402	}
2325		3403
2326	sub emergency_save() {	3404	sub emergency_save() {
2327	my $freeze_guard = cf::freeze_mainloop;	3405	my $freeze_guard = cf::freeze_mainloop;
2328		3406
…		…
2334	# and maps saved/destroyed asynchronously.	3412	# and maps saved/destroyed asynchronously.
2335	warn "begin emergency player save\n";	3413	warn "begin emergency player save\n";
2336	for my $login (keys %cf::PLAYER) {	3414	for my $login (keys %cf::PLAYER) {
2337	my $pl = $cf::PLAYER{$login} or next;	3415	my $pl = $cf::PLAYER{$login} or next;
2338	$pl->valid or next;	3416	$pl->valid or next;
		3417	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2339	$pl->save;	3418	$pl->save;
2340	}	3419	}
2341	warn "end emergency player save\n";	3420	warn "end emergency player save\n";
2342		3421
2343	warn "begin emergency map save\n";	3422	warn "begin emergency map save\n";
…		…
2361		3440
2362	warn Carp::longmess "post_cleanup backtrace"	3441	warn Carp::longmess "post_cleanup backtrace"
2363	if $make_core;	3442	if $make_core;
2364	}	3443	}
2365		3444
2366	sub reload() {	3445	sub do_reload_perl() {
2367	# can/must only be called in main	3446	# can/must only be called in main
2368	if ($Coro::current != $Coro::main) {	3447	if ($Coro::current != $Coro::main) {
2369	warn "can only reload from main coroutine";	3448	warn "can only reload from main coroutine";
2370	return;	3449	return;
2371	}	3450	}
2372		3451
2373	warn "reloading...";	3452	warn "reloading...";
2374		3453
2375	warn "entering sync_job";	3454	warn "entering sync_job";
2376		3455
2377	sync_job {	3456	cf::sync_job {
2378	write_runtime;	3457	cf::write_runtime; # external watchdog should not bark
2379	cf::emergency_save;	3458	cf::emergency_save;
2380	write_runtime;	3459	cf::write_runtime; # external watchdog should not bark
2381		3460
2382	warn "syncing database to disk";	3461	warn "syncing database to disk";
2383	BDB::db_env_txn_checkpoint $DB_ENV;	3462	BDB::db_env_txn_checkpoint $DB_ENV;
2384		3463
2385	# if anything goes wrong in here, we should simply crash as we already saved	3464	# if anything goes wrong in here, we should simply crash as we already saved
2386
2387	warn "cancelling all WF_AUTOCANCEL watchers";
2388	for (Event::all_watchers) {
2389	$_->cancel if $_->data & WF_AUTOCANCEL;
2390	}
2391		3465
2392	warn "flushing outstanding aio requests";	3466	warn "flushing outstanding aio requests";
2393	for (;;) {	3467	for (;;) {
2394	BDB::flush;	3468	BDB::flush;
2395	IO::AIO::flush;	3469	IO::AIO::flush;
2396	Coro::cede;	3470	Coro::cede_notself;
2397	last unless IO::AIO::nreqs || BDB::nreqs;	3471	last unless IO::AIO::nreqs || BDB::nreqs;
2398	warn "iterate...";	3472	warn "iterate...";
2399	}	3473	}
		3474
		3475	++$RELOAD;
2400		3476
2401	warn "cancelling all extension coros";	3477	warn "cancelling all extension coros";
2402	$_->cancel for values %EXT_CORO;	3478	$_->cancel for values %EXT_CORO;
2403	%EXT_CORO = ();	3479	%EXT_CORO = ();
2404		3480
2405	warn "removing commands";	3481	warn "removing commands";
2406	%COMMAND = ();	3482	%COMMAND = ();
2407		3483
2408	warn "removing ext commands";	3484	warn "removing ext/exti commands";
2409	%EXTCMD = ();	3485	%EXTCMD = ();
		3486	%EXTICMD = ();
2410		3487
2411	warn "unloading/nuking all extensions";	3488	warn "unloading/nuking all extensions";
2412	for my $pkg (@EXTS) {	3489	for my $pkg (@EXTS) {
2413	warn "... unloading $pkg";	3490	warn "... unloading $pkg";
2414		3491
…		…
2444	Symbol::delete_package "safe::$_"	3521	Symbol::delete_package "safe::$_"
2445	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3522	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2446		3523
2447	warn "unloading cf.pm \"a bit\"";	3524	warn "unloading cf.pm \"a bit\"";
2448	delete $INC{"cf.pm"};	3525	delete $INC{"cf.pm"};
		3526	delete $INC{"cf/pod.pm"};
2449		3527
2450	# don't, removes xs symbols, too,	3528	# don't, removes xs symbols, too,
2451	# and global variables created in xs	3529	# and global variables created in xs
2452	#Symbol::delete_package __PACKAGE__;	3530	#Symbol::delete_package __PACKAGE__;
2453		3531
…		…
2456	warn "reloading cf.pm";	3534	warn "reloading cf.pm";
2457	require cf;	3535	require cf;
2458	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3536	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2459		3537
2460	warn "loading config and database again";	3538	warn "loading config and database again";
2461	cf::cfg_load;	3539	cf::reload_config;
2462		3540
2463	warn "loading extensions";	3541	warn "loading extensions";
2464	cf::load_extensions;	3542	cf::load_extensions;
2465		3543
2466	warn "reattaching attachments to objects/players";	3544	warn "reattaching attachments to objects/players";
2467	_global_reattach;	3545	_global_reattach; # objects, sockets
2468	warn "reattaching attachments to maps";	3546	warn "reattaching attachments to maps";
2469	reattach $_ for values %MAP;	3547	reattach $_ for values %MAP;
2470		3548	warn "reattaching attachments to players";
2471	warn "loading reloadable resources";	3549	reattach $_ for values %PLAYER;
2472	load_resources;
2473		3550
2474	warn "leaving sync_job";	3551	warn "leaving sync_job";
2475		3552
2476	1	3553	1
2477	} or do {	3554	} or do {
…		…
2483	warn "reloaded";	3560	warn "reloaded";
2484	};	3561	};
2485		3562
2486	our $RELOAD_WATCHER; # used only during reload	3563	our $RELOAD_WATCHER; # used only during reload
2487		3564
		3565	sub reload_perl() {
		3566	# doing reload synchronously and two reloads happen back-to-back,
		3567	# coro crashes during coro_state_free->destroy here.
		3568
		3569	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3570	undef $RELOAD_WATCHER;
		3571	do_reload_perl;
		3572	};
		3573	}
		3574
2488	register_command "reload" => sub {	3575	register_command "reload" => sub {
2489	my ($who, $arg) = @_;	3576	my ($who, $arg) = @_;
2490		3577
2491	if ($who->flag (FLAG_WIZ)) {	3578	if ($who->flag (FLAG_WIZ)) {
2492	$who->message ("reloading server.");	3579	$who->message ("reloading server.");
2493		3580	async {
2494	# doing reload synchronously and two reloads happen back-to-back,	3581	$Coro::current->{desc} = "perl_reload";
2495	# coro crashes during coro_state_free->destroy here.
2496
2497	$RELOAD_WATCHER ||= Event->timer (
2498	reentrant => 0,
2499	after => 0,
2500	data => WF_AUTOCANCEL,
2501	cb => sub {
2502	reload;	3582	reload_perl;
2503	undef $RELOAD_WATCHER;
2504	},
2505	);	3583	};
2506	}	3584	}
2507	};	3585	};
2508		3586
2509	unshift @INC, $LIBDIR;	3587	unshift @INC, $LIBDIR;
2510		3588
2511	my $bug_warning = 0;	3589	my $bug_warning = 0;
2512		3590
2513	$TICK_WATCHER = Event->timer (	3591	our @WAIT_FOR_TICK;
2514	reentrant => 0,	3592	our @WAIT_FOR_TICK_BEGIN;
2515	parked => 1,	3593
2516	prio => 0,	3594	sub wait_for_tick {
2517	at => $NEXT_TICK || $TICK,	3595	return unless $TICK_WATCHER->is_active;
2518	data => WF_AUTOCANCEL,	3596	return if $Coro::current == $Coro::main;
2519	cb => sub {	3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	sub wait_for_tick_begin {
		3604	return unless $TICK_WATCHER->is_active;
		3605	return if $Coro::current == $Coro::main;
		3606
		3607	my $signal = new Coro::Signal;
		3608	push @WAIT_FOR_TICK_BEGIN, $signal;
		3609	$signal->wait;
		3610	}
		3611
		3612	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2520	if ($Coro::current != $Coro::main) {	3613	if ($Coro::current != $Coro::main) {
2521	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3614	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522	unless ++$bug_warning > 10;	3615	unless ++$bug_warning > 10;
2523	return;	3616	return;
2524	}	3617	}
2525		3618
2526	$NOW = Event::time;	3619	$NOW = $tick_start = EV::now;
2527		3620
2528	cf::server_tick; # one server iteration	3621	cf::server_tick; # one server iteration
		3622
2529	$RUNTIME += $TICK;	3623	$RUNTIME += $TICK;
2530	$NEXT_TICK += $TICK;	3624	$NEXT_TICK = $_[0]->at;
2531		3625
2532	$WAIT_FOR_TICK->broadcast;	3626	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3627	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2534		3628	Coro::async_pool {
2535	# my $AFTER = Event::time;	3629	$Coro::current->{desc} = "runtime saver";
2536	# warn $AFTER - $NOW;#d#	3630	write_runtime
2537		3631	or warn "ERROR: unable to write runtime file: $!";
2538	# if we are delayed by four ticks or more, skip them all	3632	};
2539	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2540
2541	$TICK_WATCHER->at ($NEXT_TICK);
2542	$TICK_WATCHER->start;
2543	},	3633	}
2544	);	3634
		3635	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3636	$sig->send;
		3637	}
		3638	while (my $sig = shift @WAIT_FOR_TICK) {
		3639	$sig->send;
		3640	}
		3641
		3642	$LOAD = ($NOW - $tick_start) / $TICK;
		3643	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3644
		3645	_post_tick;
		3646	};
		3647	$TICK_WATCHER->priority (EV::MAXPRI);
2545		3648
2546	{	3649	{
2547	BDB::max_poll_time $TICK * 0.1;	3650	# configure BDB
2548	$BDB_POLL_WATCHER = Event->io (	3651
2549	reentrant => 0,
2550	fd => BDB::poll_fileno,
2551	poll => 'r',
2552	prio => 0,
2553	data => WF_AUTOCANCEL,
2554	cb => \&BDB::poll_cb,
2555	);
2556	BDB::min_parallel 8;	3652	BDB::min_parallel 8;
2557		3653	BDB::max_poll_reqs $TICK * 0.1;
2558	BDB::set_sync_prepare {	3654	$Coro::BDB::WATCHER->priority (1);
2559	my $status;
2560	my $current = $Coro::current;
2561	(
2562	sub {
2563	$status = $!;
2564	$current->ready; undef $current;
2565	},
2566	sub {
2567	Coro::schedule while defined $current;
2568	$! = $status;
2569	},
2570	)
2571	};
2572		3655
2573	unless ($DB_ENV) {	3656	unless ($DB_ENV) {
2574	$DB_ENV = BDB::db_env_create;	3657	$DB_ENV = BDB::db_env_create;
		3658	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3659	| BDB::LOG_AUTOREMOVE, 1);
		3660	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3661	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2575		3662
2576	cf::sync_job {	3663	cf::sync_job {
2577	eval {	3664	eval {
2578	BDB::db_env_open	3665	BDB::db_env_open
2579	$DB_ENV,	3666	$DB_ENV,
2580	$BDB_ENV_DIR,	3667	$BDBDIR,
2581	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3668	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2582	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3669	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2583	0666;	3670	0666;
2584		3671
2585	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3672	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2586
2587	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2588	$DB_ENV->set_lk_detect;
2589	};	3673	};
2590		3674
2591	cf::cleanup "db_env_open(db): $@" if $@;	3675	cf::cleanup "db_env_open(db): $@" if $@;
2592	};	3676	};
2593	}	3677	}
		3678
		3679	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3680	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3681	};
		3682	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3683	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3684	};
		3685	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3686	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3687	};
2594	}	3688	}
2595		3689
2596	{	3690	{
		3691	# configure IO::AIO
		3692
2597	IO::AIO::min_parallel 8;	3693	IO::AIO::min_parallel 8;
2598
2599	undef $Coro::AIO::WATCHER;
2600	IO::AIO::max_poll_time $TICK * 0.1;	3694	IO::AIO::max_poll_time $TICK * 0.1;
2601	$AIO_POLL_WATCHER = Event->io (	3695	$Coro::AIO::WATCHER->priority (1);
2602	reentrant => 0,
2603	fd => IO::AIO::poll_fileno,
2604	poll => 'r',
2605	prio => 6,
2606	data => WF_AUTOCANCEL,
2607	cb => \&IO::AIO::poll_cb,
2608	);
2609	}	3696	}
2610		3697
2611	$WRITE_RUNTIME_WATCHER = Event->timer (	3698	my $_log_backtrace;
2612	reentrant => 0,
2613	data => WF_AUTOCANCEL,
2614	parked => 1,
2615	after => 1,
2616	interval => 10,
2617	prio => 6, # keep it lowest so it acts like a watchdog
2618	cb => sub {
2619	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
2620		3699
2621	Coro::async_pool {	3700	sub _log_backtrace {
2622	write_runtime	3701	my ($msg, @addr) = @_;
2623	or warn "ERROR: unable to write runtime file: $!";	3702
		3703	$msg =~ s/\n//;
		3704
		3705	# limit the # of concurrent backtraces
		3706	if ($_log_backtrace < 2) {
		3707	++$_log_backtrace;
		3708	async {
		3709	$Coro::current->{desc} = "abt $msg";
		3710
		3711	my @bt = fork_call {
		3712	@addr = map { sprintf "%x", $_ } @addr;
		3713	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3714	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3715	or die "addr2line: $!";
		3716
		3717	my @funcs;
		3718	my @res = <$fh>;
		3719	chomp for @res;
		3720	while (@res) {
		3721	my ($func, $line) = splice @res, 0, 2, ();
		3722	push @funcs, "[$func] $line";
		3723	}
		3724
		3725	@funcs
		3726	};
		3727
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] $_\n" for @bt;
		3730	--$_log_backtrace;
2624	};	3731	};
		3732	} else {
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] [suppressed]\n";
2625	},	3735	}
2626	);	3736	}
		3737
		3738	# load additional modules
		3739	use cf::pod;
2627		3740
2628	END { cf::emergency_save }	3741	END { cf::emergency_save }
2629		3742
2630	1	3743	1
2631		3744

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