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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.195 by root, Fri Jan 26 20:59:57 2007 UTC vs.
Revision 1.397 by root, Mon Nov 19 15:47:14 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
28		38	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
53		87
54	our %CFG;	88	our %CFG;
55		89
56	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	91	our $RUNTIME;
58		92
59	our %PLAYER; # all users	93	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	94	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	95	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		96
67	# used to convert map paths into valid unix filenames by replacing / by ∕	97	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
		103
70	binmode STDOUT;	104	binmode STDOUT;
71	binmode STDERR;	105	binmode STDERR;
72		106
73	# read virtual server time, if available	107	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
78	}	112	}
79		113
80	mkdir cf::localdir;	114	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		116
86	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
		118
		119	sub cf::map::normalise;
87		120
88	#############################################################################	121	#############################################################################
89		122
90	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
91		124
…		…
98	=item $cf::RUNTIME	131	=item $cf::RUNTIME
99		132
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	134	every server tick.
102		135
103	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		139
105	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
107		144
108	=item $cf::NOW	145	=item $cf::NOW
109		146
110	The time of the last (current) server tick.	147	The time of the last (current) server tick.
111		148
112	=item $cf::TICK	149	=item $cf::TICK
113		150
114	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
115		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
116	=item %cf::CFG	163	=item %cf::CFG
117		164
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	166	from wherever your confdir points to.
120		167
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	168	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		169
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	171	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
127		179
128	=back	180	=back
129		181
130	=cut	182	=cut
131		183
132	BEGIN {	184	BEGIN {
133	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	186	my $msg = join "", @_;
135	utf8::encode $msg;
136		187
137	$msg .= "\n"	188	$msg .= "\n"
138	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
139		192
140	LOG llevError, $msg;	193	LOG llevError, $msg;
141	};	194	};
142	}	195	}
143		196
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		204
151	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	206	# within the Safe compartment.
153	for my $pkg (qw(	207	for my $pkg (qw(
154	cf::global cf::attachable	208	cf::global cf::attachable
…		…
159	)) {	213	)) {
160	no strict 'refs';	214	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	216	}
163		217
164	$Event::DIED = sub {	218	$EV::DIED = sub {
165	warn "error in event callback: @_";	219	warn "error in event callback: @_";
166	};	220	};
		221
		222	#############################################################################
167		223
168	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
169		225
170	=over 4	226	=over 4
171		227
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	247	$d
192	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
193	}	249	}
194		250
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
198		252
199	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
200		254
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
209		256
210	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
211		258
212	=cut	259	=cut
213		260
214	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
216	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	264	sub from_json ($) { $json_coder->decode ($_[0]) }
218		265
219	=item cf::lock_wait $string	266	=item cf::lock_wait $string
220		267
221	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
222		269
…		…
225	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
228	returned.	275	returned.
229		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
230	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
232		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
233	=cut	287	=cut
234		288
235	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
236		291
237	sub lock_wait($) {	292	sub lock_wait($) {
238	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
239		299
240	# wait for lock, if any	300	# wait for lock, if any
241	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	303	Coro::schedule;
…		…
249		309
250	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
251	lock_wait $key;	311	lock_wait $key;
252		312
253	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
254		315
255	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
258	}	320	}
259	}	321	}
260		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
261	sub freeze_mainloop {	329	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
263		331
264	my $guard = Coro::guard {	332	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	333	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	334	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
270	$guard	336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
271	}	410	}
272		411
273	=item cf::async { BLOCK }	412	=item cf::async { BLOCK }
274		413
275	Currently the same as Coro::async_pool, meaning you cannot use	414	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		419
281	BEGIN { *async = \&Coro::async_pool }	420	BEGIN { *async = \&Coro::async_pool }
282		421
283	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
284		423
285	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
288		428
289	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
292	fast or be very important.	432	fast or be very important.
…		…
295		435
296	sub sync_job(&) {	436	sub sync_job(&) {
297	my ($job) = @_;	437	my ($job) = @_;
298		438
299	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
300	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
302		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
303	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	448	# (but this is cancel-safe)
305	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
306		450
307	my $busy = 1;	451	my $busy = 1;
308	my @res;	452	my @res;
309		453
310	(async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	456	@res = eval { $job->() };
312	warn $@ if $@;	457	warn $@ if $@;
313	undef $busy;	458	undef $busy;
314	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
315		460
316	while ($busy) {	461	while ($busy) {
317	Coro::cede or Event::one_event;	462	if (Coro::nready) {
		463	Coro::cede_notself;
		464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
318	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
319		475
320	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
321	} else {	477	} else {
322	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
323		479
…		…
343	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
344		500
345	$coro	501	$coro
346	}	502	}
347		503
348	sub write_runtime {	504	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		505
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
352	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
353		510
354	my $value = $cf::RUNTIME + 90 + 10;	511	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		512
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	513	sub fork_call(&@) {
359	and return;	514	my ($cb, @args) = @_;
360		515
361	aio_fsync $fh	516	# we seemingly have to make a local copy of the whole thing,
362	and return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
363		519
364	close $fh	520	my @res = Coro::Util::fork_eval {
365	or return;	521	reset_signals;
		522	&$cb
		523	}, @args;
366		524
367	aio_rename "$runtime~", $runtime	525	wantarray ? @res : $res[-1]
368	and return;	526	}
369		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
370	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	664	}
372		665
373	=back	666	=back
374		667
375	=cut	668	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
384		677
385	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	680	Deliantra).
388		681
389	=over 4	682	=over 4
390		683
391	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
392		685
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
556		849
557	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		854
562	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	856	my $pkg = shift @arg;
564		857
565	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
595	}	888	}
596		889
597	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
598	} else {	891	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	893	}
601		894
602	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
603	}	896	}
604		897
…		…
606	if (ref $_[0]) {	899	if (ref $_[0]) {
607	_object_attach @_;	900	_object_attach @_;
608	} else {	901	} else {
609	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
610	}	903	}
		904	_recalc_want;
611	};	905	};
612		906
613	# all those should be optimised	907	# all those should be optimised
614	sub cf::attachable::detach {	908	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
619	reattach ($obj);	913	reattach ($obj);
620	} else {	914	} else {
621	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
622	}	916	}
		917	_recalc_want;
623	};	918	};
624		919
625	sub cf::attachable::attached {	920	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
627		922
…		…
642	";	937	";
643	die if $@;	938	die if $@;
644	}	939	}
645		940
646	our $override;	941	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		943
649	sub override {	944	sub override {
650	$override = 1;	945	$override = 1;
651	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
652	}	947	}
653		948
654	sub do_invoke {	949	sub do_invoke {
655	my $event = shift;	950	my $event = shift;
656	my $callbacks = shift;	951	my $callbacks = shift;
657		952
658	@invoke_results = ();	953	@INVOKE_RESULTS = ();
659		954
660	local $override;	955	local $override;
661		956
662	for (@$callbacks) {	957	for (@$callbacks) {
663	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
680		975
681	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
682		977
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		981
687	=back	982	=back
688		983
689	=cut	984	=cut
690		985
691	#############################################################################	986	#############################################################################
692	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
693		1030
694	sub reattach {	1031	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1033	my ($obj) = @_;
697		1034
…		…
744	sub object_freezer_save {	1081	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
746		1083
747	sync_job {	1084	sync_job {
748	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
751		1089
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1094	close $fh;
757		1095
758	if (@$objs) {	1096	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1102	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
766	}	1104	}
767	} else {	1105	} else {
768	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
774	}	1112	}
775	} else {	1113	} else {
776	aio_unlink $filename;	1114	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
778	}	1116	}
779	}	1117	};
780	}	1118	}
781		1119
782	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
784		1122
…		…
796	or return;	1134	or return;
797		1135
798	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
800	or return;	1138	or return;
		1139
801	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
802	}	1142	}
803		1143
		1144	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
806	return ($data, $av);	1148	($data, $av)
807	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
808		1156
809	#############################################################################	1157	#############################################################################
810	# command handling &c	1158	# command handling &c
811		1159
812	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1174	}
827		1175
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1177
830	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
831		1183
832	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
833	called.	1185	called.
834		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
835	=cut	1198	=cut
836		1199
837	sub register_extcmd {	1200	sub register_extcmd {
838	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
839		1202
840	$EXTCMD{$name} = $cb;	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
841	}	1210	}
842		1211
843	cf::player->attach (	1212	cf::player->attach (
844	on_command => sub {	1213	on_command => sub {
845	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1223	cf::override;
855	},	1224	},
856	on_extcmd => sub {	1225	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
858		1227
859	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1229
861	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
867	} else {	1245	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1247	}
870		1248
871	cf::override;	1249	cf::override;
872	},	1250	},
873	);	1251	);
874		1252
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
910	for my $ext (<$LIBDIR/*.ext>) {	1257	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1258	next unless -r $path;
912	eval {	1259
913	load_extension $ext;	1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
914	1	1317	}
915	} or warn "$ext not loaded: $@";	1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
916	}	1323	};
917	}	1324	}
918		1325
919	#############################################################################	1326	#############################################################################
920		1327
		1328	=back
		1329
921	=head2 CORE EXTENSIONS	1330	=head2 CORE EXTENSIONS
922		1331
923	Functions and methods that extend core crossfire objects.	1332	Functions and methods that extend core crossfire objects.
924		1333
925	=cut	1334	=cut
…		…
930		1339
931	=head3 cf::player	1340	=head3 cf::player
932		1341
933	=over 4	1342	=over 4
934		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
935	=item cf::player::find $login	1358	=item cf::player::find $login
936		1359
937	Returns the given player object, loading it if necessary (might block).	1360	Returns the given player object, loading it if necessary (might block).
938		1361
939	=cut	1362	=cut
940		1363
941	sub playerdir($) {	1364	sub playerdir($) {
942	cf::localdir	1365	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1367	}
948		1368
949	sub path($) {	1369	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1371
952	(playerdir $login) . "/$login.pl"	1372	(playerdir $login) . "/playerdata"
953	}	1373	}
954		1374
955	sub find_active($) {	1375	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1376	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1377	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1390	my $login = $_[0];
971		1391
972	my $guard = cf::lock_acquire "user_find:$login";	1392	my $guard = cf::lock_acquire "user_find:$login";
973		1393
974	$cf::PLAYER{$_[0]} || do {	1394	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
976	or return;	1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1409	$cf::PLAYER{$login} = $pl
978	}	1410	}
979	}	1411	}
980	}	1412	}
981		1413
…		…
991		1423
992	aio_mkdir playerdir $pl, 0770;	1424	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1425	$pl->{last_save} = $cf::RUNTIME;
994		1426
995	$pl->save_pl ($path);	1427	$pl->save_pl ($path);
996	Coro::cede;	1428	cf::cede_to_tick;
997	}	1429	}
998		1430
999	sub new($) {	1431	sub new($) {
1000	my ($login) = @_;	1432	my ($login) = @_;
1001		1433
…		…
1007	$cf::PLAYER{$login} = $self;	1439	$cf::PLAYER{$login} = $self;
1008		1440
1009	$self	1441	$self
1010	}	1442	}
1011		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
1012	=item $pl->quit_character	1454	=item $pl->quit_character
1013		1455
1014	Nukes the player without looking back. If logged in, the connection will	1456	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1457	be destroyed. May block for a long time.
1016		1458
1017	=cut	1459	=cut
1018		1460
1019	sub quit_character {	1461	sub quit_character {
1020	my ($pl) = @_;	1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
1021		1465
1022	$pl->{deny_save} = 1;	1466	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1468
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1474	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1475	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1476	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1477	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
1035	IO::AIO::aio_rmtree $temp;	1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
1036	}	1500	}
1037		1501
1038	=item cf::player::list_logins	1502	=item cf::player::list_logins
1039		1503
1040	Returns am arrayref of all valid playernames in the system, can take a	1504	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1505	while and may block, so not sync_job-capable, ever.
1042		1506
1043	=cut	1507	=cut
1044		1508
1045	sub list_logins {	1509	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1510	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1511	or return [];
1048		1512
1049	my @logins;	1513	my @logins;
1050		1514
1051	for my $login (@$dirs) {	1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1521	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
1055		1524
1056	utf8::decode $login;	1525	utf8::decode $login;
1057	push @logins, $login;	1526	push @logins, $login;
1058	}	1527	}
1059		1528
…		…
1067		1536
1068	=cut	1537	=cut
1069		1538
1070	sub maps($) {	1539	sub maps($) {
1071	my ($pl) = @_;	1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1543
1073	my $files = aio_readdir playerdir $pl	1544	my $files = aio_readdir playerdir $pl
1074	or return;	1545	or return;
1075		1546
1076	my @paths;	1547	my @paths;
…		…
1078	for (@$files) {	1549	for (@$files) {
1079	utf8::decode $_;	1550	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1551	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1552	next unless /^$PATH_SEP/o;
1082		1553
1083	s/\.map$//;	1554	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1555	}
1086		1556
1087	\@paths	1557	\@paths
1088	}	1558	}
1089		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1653	=item $player->ext_reply ($msgid, @msg)
1091		1654
1092	Sends an ext reply to the player.	1655	Sends an ext reply to the player.
1093		1656
1094	=cut	1657	=cut
1095		1658
1096	sub ext_reply($$$%) {	1659	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1660	my ($self, $id, @msg) = @_;
1098		1661
1099	$msg{msgid} = $id;	1662	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1663	}
1103		1664
1104	package cf;	1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
		1692	my ($path) = @_;
		1693
		1694	my ($match, $specificity);
		1695
		1696	for my $region (list) {
		1697	if ($region->{match} && $path =~ $region->{match}) {
		1698	($match, $specificity) = ($region, $region->specificity)
		1699	if $region->specificity > $specificity;
		1700	}
		1701	}
		1702
		1703	$match
		1704	}
1105		1705
1106	=back	1706	=back
1107
1108		1707
1109	=head3 cf::map	1708	=head3 cf::map
1110		1709
1111	=over 4	1710	=over 4
1112		1711
…		…
1167	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1168		1767
1169	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1170	local $self->{path};	1769	local $self->{path};
1171	local $self->{load_path};	1770	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1771
1175	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1176	}	1773	}
1177		1774
1178	sub normalise {	1775	sub normalise {
1179	my ($path, $base) = @_;	1776	my ($path, $base) = @_;
1180		1777
1181	$path = "$path"; # make sure its a string	1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
1182		1781
1183	# map plan:	1782	# map plan:
1184	#	1783	#
1185	# /! non-realised random map exit (special hack!)	1784	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1785	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1224	return $self;	1823	return $self;
1225	}	1824	}
1226	}	1825	}
1227		1826
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1828	()
1230	}	1829	}
1231		1830
1232	sub init {	1831	sub init {
1233	my ($self) = @_;	1832	my ($self) = @_;
…		…
1248		1847
1249	# the original (read-only) location	1848	# the original (read-only) location
1250	sub load_path {	1849	sub load_path {
1251	my ($self) = @_;	1850	my ($self) = @_;
1252		1851
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1254	}	1853	}
1255		1854
1256	# the temporary/swap location	1855	# the temporary/swap location
1257	sub save_path {	1856	sub save_path {
1258	my ($self) = @_;	1857	my ($self) = @_;
1259		1858
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1262	}	1861	}
1263		1862
1264	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1265	sub uniq_path {	1864	sub uniq_path {
1266	my ($self) = @_;	1865	my ($self) = @_;
1267		1866
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1270	}	1869	}
1271		1870
1272	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1273	# all maps in C++...	1872	# all maps in C++...
1274	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1276		1875
1277	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1278	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1279	}	1878	}
1280		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
1281	sub unlink_save {	1888	sub unlink_save {
1282	my ($self) = @_;	1889	my ($self) = @_;
1283		1890
1284	utf8::encode (my $save = $self->save_path);	1891	utf8::encode (my $save = $self->save_path);
1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1288		1895
1289	sub load_header_from($) {	1896	sub load_header_from($) {
1290	my ($self, $path) = @_;	1897	my ($self, $path) = @_;
1291		1898
1292	utf8::encode $path;	1899	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1294	or return;	1901	or return;
1295		1902
1296	$self->_load_header ($path)	1903	$self->_load_header ($f)
1297	or return;	1904	or return;
		1905
		1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
1298		1908
1299	$self->{load_path} = $path;	1909	$self->{load_path} = $path;
1300		1910
1301	1	1911	1
1302	}	1912	}
…		…
1341	$self->load_header_orig	1951	$self->load_header_orig
1342	or return;	1952	or return;
1343	$self->prepare_orig;	1953	$self->prepare_orig;
1344	}	1954	}
1345		1955
		1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
		1958
		1959	$self->default_region (cf::region::find_by_path $self->{path})
		1960	unless $self->default_region;
		1961
1346	1	1962	1
1347	}	1963	}
1348		1964
1349	sub find;	1965	sub find;
1350	sub find {	1966	sub find {
1351	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1352		1968
1353	$path = normalise $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1354		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1972	cf::lock_wait "map_find:$path";
1356		1973
1357	$cf::MAP{$path} || do {	1974	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1977
1359	my $map = new_from_path cf::map $path	1978	my $map = new_from_path cf::map $path
1360	or return;	1979	or return;
1361		1980
1362	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1363		1982
1364	$map->load_header	1983	$map->load_header
1365	or return;	1984	or return;
1366		1985
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1987	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1370	$map->reset;	1991	$map->reset;
1371	undef $guard;
1372	return find $path;	1992	return find $path;
1373	}	1993	}
1374		1994
1375	$cf::MAP{$path} = $map	1995	$cf::MAP{$path} = $map
1376	}	1996	}
…		…
1380	sub post_load { }	2000	sub post_load { }
1381		2001
1382	sub load {	2002	sub load {
1383	my ($self) = @_;	2003	my ($self) = @_;
1384		2004
		2005	local $self->{deny_reset} = 1; # loading can take a long time
		2006
1385	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1386	my $guard = cf::lock_acquire "map_load:$path";	2010	my $guard = cf::lock_acquire "map_data:$path";
1387		2011
		2012	return unless $self->valid;
1388	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1389		2014
1390	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1391		2016
1392	$self->alloc;	2017	$self->alloc;
1393		2018
1394	$self->pre_load;	2019	$self->pre_load;
		2020	cf::cede_to_tick;
1395		2021
1396	$self->_load_objects ($self->{load_path}, 1)	2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1397	or return;	2025	or return;
1398		2026
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1400	if delete $self->{load_original};	2028	if delete $self->{load_original};
1401		2029
1402	if (my $uniq = $self->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;	2031	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1405	$self->clear_unique_items;	2034	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1407	}	2038	}
1408	}	2039	}
1409		2040
1410	Coro::cede;	2041	$f->resolve_delayed_derefs;
1411		2042
		2043	cf::cede_to_tick;
1412	# now do the right thing for maps	2044	# now do the right thing for maps
1413	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;
1420	$self->set_darkness_map;
1421	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	2047	unless $self->difficulty;
1423	Coro::cede;	2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1424	$self->activate;	2057	$self->activate;
		2058	}
		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
		2063	$self->in_memory (cf::MAP_IN_MEMORY);
1425	}	2064	}
1426		2065
1427	$self->post_load;	2066	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2067	}
1431		2068
1432	sub customise_for {	2069	sub customise_for {
1433	my ($self, $ob) = @_;	2070	my ($self, $ob) = @_;
1434		2071
1435	return find "~" . $ob->name . "/" . $self->{path}	2072	return find "~" . $ob->name . "/" . $self->{path}
1436	if $self->per_player;	2073	if $self->per_player;
1437		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
1438	$self	2078	$self
1439	}	2079	}
1440		2080
1441	# find and load all maps in the 3x3 area around a map	2081	# find and load all maps in the 3x3 area around a map
1442	sub load_diag {	2082	sub load_neighbours {
1443	my ($map) = @_;	2083	my ($map) = @_;
1444		2084
1445	my @diag; # diagonal neighbours	2085	my @neigh; # diagonal neighbours
1446		2086
1447	for (0 .. 3) {	2087	for (0 .. 3) {
1448	my $neigh = $map->tile_path ($_)	2088	my $neigh = $map->tile_path ($_)
1449	or next;	2089	or next;
1450	$neigh = find $neigh, $map	2090	$neigh = find $neigh, $map
1451	or next;	2091	or next;
1452	$neigh->load;	2092	$neigh->load;
1453		2093
		2094	push @neigh,
1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1456	}	2097	}
1457		2098
1458	for (@diag) {	2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
1459	my $neigh = find @$_	2101	my $neigh = find $path, $origin
1460	or next;	2102	or next;
1461	$neigh->load;	2103	$neigh->load;
1462	}	2104	}
1463	}	2105	}
1464		2106
…		…
1469	}	2111	}
1470		2112
1471	sub do_load_sync {	2113	sub do_load_sync {
1472	my ($map) = @_;	2114	my ($map) = @_;
1473		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1474	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
1475	}	2120	}
1476		2121
1477	our %MAP_PREFETCH;	2122	our %MAP_PREFETCH;
1478	our $MAP_PREFETCHER = undef;	2123	our $MAP_PREFETCHER = undef;
1479		2124
1480	sub find_async {	2125	sub find_async {
1481	my ($path, $origin) = @_;	2126	my ($path, $origin, $load) = @_;
1482		2127
1483	$path = normalise $path, $origin && $origin->{path};	2128	$path = normalise $path, $origin && $origin->{path};
1484		2129
1485	if (my $map = $cf::MAP{$path}) {	2130	if (my $map = $cf::MAP{$path}) {
1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1487	}	2132	}
1488		2133
1489	undef $MAP_PREFETCH{$path};	2134	$MAP_PREFETCH{$path} |= $load;
		2135
1490	$MAP_PREFETCHER ||= cf::async {	2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
1491	while (%MAP_PREFETCH) {	2139	while (%MAP_PREFETCH) {
1492	for my $path (keys %MAP_PREFETCH) {	2140	while (my ($k, $v) = each %MAP_PREFETCH) {
1493	my $map = find $path	2141	if (my $map = find $k) {
1494	or next;
1495	$map->load;	2142	$map->load if $v;
		2143	}
1496		2144
1497	delete $MAP_PREFETCH{$path};	2145	delete $MAP_PREFETCH{$k};
1498	}	2146	}
1499	}	2147	}
1500	undef $MAP_PREFETCHER;	2148	undef $MAP_PREFETCHER;
1501	};	2149	};
1502	$MAP_PREFETCHER->prio (6);	2150	$MAP_PREFETCHER->prio (6);
…		…
1505	}	2153	}
1506		2154
1507	sub save {	2155	sub save {
1508	my ($self) = @_;	2156	my ($self) = @_;
1509		2157
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2159
1512	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1513		2161
1514	return unless $self->dirty;	2162	return unless $self->dirty;
1515		2163
…		…
1521	return if $self->{deny_save};	2169	return if $self->{deny_save};
1522		2170
1523	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1524		2172
1525	cf::async {	2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
1526	$_->contr->save for $self->players;	2175	$_->contr->save for $self->players;
1527	};	2176	};
1528		2177
1529	if ($uniq) {	2178	if ($uniq) {
1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1538	my ($self) = @_;	2187	my ($self) = @_;
1539		2188
1540	# save first because save cedes	2189	# save first because save cedes
1541	$self->save;	2190	$self->save;
1542		2191
1543	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2193
1545	return if $self->players;	2194	return if $self->players;
1546	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1547	return if $self->{deny_save};	2196	return if $self->{deny_save};
1548		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1549	$self->clear;	2202	$self->clear;
1550	$self->in_memory (cf::MAP_SWAPPED);
1551	}	2203	}
1552		2204
1553	sub reset_at {	2205	sub reset_at {
1554	my ($self) = @_;	2206	my ($self) = @_;
1555		2207
1556	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1558	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1559		2210
1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1562		2213
…		…
1573	my ($self) = @_;	2224	my ($self) = @_;
1574		2225
1575	my $lock = cf::lock_acquire "map_data:$self->{path}";	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2227
1577	return if $self->players;	2228	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#
1579		2229
1580	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1581		2241
1582	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1583		2243
1584	$self->in_memory (cf::MAP_SWAPPED);	2244	$self->deactivate;
		2245	$_->clear_links_to ($self) for values %cf::MAP;
1585	$self->clear;	2246	$self->clear;
1586
1587	$_->clear_links_to ($self) for values %cf::MAP;
1588		2247
1589	$self->unlink_save;	2248	$self->unlink_save;
1590	$self->destroy;	2249	$self->destroy;
1591	}	2250	}
1592		2251
1593	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1594		2253
1595	sub nuke {	2254	sub nuke {
1596	my ($self) = @_;	2255	my ($self) = @_;
1597		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
1598	delete $cf::MAP{$self->path};	2260	delete $cf::MAP{$self->path};
1599		2261
1600	$self->unlink_save;	2262	$self->unlink_save;
1601		2263
1602	bless $self, "cf::map";	2264	bless $self, "cf::map";
1603	delete $self->{deny_reset};	2265	delete $self->{deny_reset};
1604	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1605	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1607		2269
1608	$cf::MAP{$self->path} = $self;	2270	$cf::MAP{$self->path} = $self;
		2271	}
1609		2272
1610	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
		2274	}
		2275
		2276	=item $maps = cf::map::tmp_maps
		2277
		2278	Returns an arrayref with all map paths of currently instantiated and saved
		2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
		2284	[
		2285	map {
		2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
		2292	}
		2293
		2294	=item $maps = cf::map::random_maps
		2295
		2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
		2298
		2299	=cut
		2300
		2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
1611	}	2310	}
1612		2311
1613	=item cf::map::unique_maps	2312	=item cf::map::unique_maps
1614		2313
1615	Returns an arrayref of paths of all shared maps that have	2314	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2315	instantiated unique items. May block.
1617		2316
1618	=cut	2317	=cut
1619		2318
1620	sub unique_maps() {	2319	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2320	[
1622	or return;	2321	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2322	utf8::decode $_;
1628	next if /\.pst$/;
1629	next unless /^$PATH_SEP/o;
1630
1631	s/\.map$//;	2323	/\.map$/
1632	push @paths, $_;	2324	? normalise $_
		2325	: ()
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
1633	}	2327	]
1634
1635	\@paths
1636	}	2328	}
1637		2329
1638	package cf;	2330	package cf;
1639		2331
1640	=back	2332	=back
…		…
1658	map { $_, inv_recursive_ $_->inv } @_	2350	map { $_, inv_recursive_ $_->inv } @_
1659	}	2351	}
1660		2352
1661	sub inv_recursive {	2353	sub inv_recursive {
1662	inv_recursive_ inv $_[0]	2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
1663	}	2383	}
1664		2384
1665	package cf;	2385	package cf;
1666		2386
1667	=back	2387	=back
…		…
1686		2406
1687	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1688		2408
1689	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1690	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1691	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1692	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1693	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1694	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1695	}	2434	}
1696		2435
1697	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1698		2437
1699	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1731	=cut	2470	=cut
1732		2471
1733	sub link_map {	2472	sub link_map {
1734	unless ($LINK_MAP) {	2473	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	2474	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	2476	$LINK_MAP->load;
1738	}	2477	}
1739		2478
1740	$LINK_MAP	2479	$LINK_MAP
1741	}	2480	}
…		…
1746	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1747		2486
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		2488
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1752		2491
1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	2493	}
1755		2494
1756	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1758		2499
1759	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1760		2501
1761	unless ($map) {	2502	unless ($map) {
1762	# restore original map position	2503	# restore original map position
…		…
1776	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1777	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1778	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1779		2520
1780	$map->load;	2521	$map->load;
1781	$map->load_diag;	2522	$map->load_neighbours;
1782		2523
1783	return unless $self->contr->active;	2524	return unless $self->contr->active;
1784	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1786	}	2529	}
1787		2530
1788	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1789	on_logout => sub {
1790	my ($pl) = @_;
1791		2532
1792	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1793	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1794	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1795	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1796	};	2537	be called at the end of this process.
1797	}
1798	},
1799	on_login => sub {
1800	my ($pl) = @_;
1801		2538
1802	# try to abort aborted map switching on player login :)
1803	# should happen only on crashes
1804	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;
1806	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);
1813	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;
1815	})->prio (2);
1816	}
1817	},
1818	);
1819
1820	=item $player_object->goto ($path, $x, $y)
1821
1822	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1823		2542
1824	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1825	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1826		2548
1827	$self->enter_link;	2549	$self->enter_link;
1828		2550
1829	(async {	2551	(async {
1830	my $map = cf::map::find $path;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
		2553
		2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1831	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
1832		2578	$map = $check->($map) if $check && $map;
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	2579	} else {
1834	# if $map;
1835
1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1837		2582
		2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1838	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1839	})->prio (1);	2597	})->prio (1);
1840	}	2598	}
1841		2599
1842	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1843		2601
…		…
1872	# that depends on the exit object	2630	# that depends on the exit object
1873		2631
1874	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1875		2633
1876	if ($exit->map) {	2634	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1881	}	2639	}
1882		2640
1883	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1884		2642
1885	my $data = cf::to_json $rmp;	2643	my $data = cf::to_json $rmp;
1886	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2645	my $meta = "$RANDOMDIR/$md5.meta";
1888		2646
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2649	undef $fh;
1892	aio_rename "$meta~", $meta;	2650	aio_rename "$meta~", $meta;
…		…
1901		2659
1902	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1903		2661
1904	if ($exit->slaying eq "/!") {	2662	if ($exit->slaying eq "/!") {
1905	#TODO: this should de-fi-ni-te-ly not be a sync-job	2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
1906	cf::sync_job { prepare_random_map $exit };	2666	cf::sync_job { prepare_random_map $exit };
1907	}	2667	}
1908		2668
1909	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1910	my $hp = $exit->stats->hp;	2670	my $hp = $exit->stats->hp;
1911	my $sp = $exit->stats->sp;	2671	my $sp = $exit->stats->sp;
1912		2672
1913	$self->enter_link;	2673	$self->enter_link;
1914		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1915	(async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1916	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1917	unless (eval {	2683	unless (eval {
1918	$self->goto ($slaying, $hp, $sp);	2684	$self->goto ($slaying, $hp, $sp);
1919		2685
1920	1;	2686	1;
1921	}) {	2687	}) {
1922	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1923	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1924	. "Please report this to the dungeon master!",	2690	. "Please report this to the dungeon master!",
1925	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1926		2692
1927	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1928	$self->leave_link;	2694	$self->leave_link;
1929	}	2695	}
1930	})->prio (1);	2696	})->prio (1);
…		…
1943		2709
1944	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1945	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1946		2712
1947	utf8::encode $text;	2713	utf8::encode $text;
1948	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1949	}	2715	}
1950		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1951		2875
1952	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1953		2877
1954	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1955	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1957		2881
1958	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1959	reliable at some point in the future.	2883	become reliable at some point in the future.
1960		2884
1961	=cut	2885	=cut
1962		2886
1963	sub cf::client::query {	2887	sub cf::client::query {
1964	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1972	utf8::encode $text;	2896	utf8::encode $text;
1973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1974		2898
1975	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1976	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1977	}	2903	}
1978		2904
1979	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1980	on_reply => sub {	2911	on_reply => sub {
1981	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1982		2913
1983	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1984	# get handled first	2915	# get handled first
1985	my $queue = delete $ns->{query_queue}	2916	my $queue = delete $ns->{query_queue}
1986	or return; # be conservative, not sure how that can happen, but we saw a crash here	2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1987		2918
1988	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1989		2921
1990	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1991		2923
1992	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1993	if (@$queue) {	2925	if (@$queue) {
…		…
1995	} else {	2927	} else {
1996	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1997	}	2929	}
1998	}	2930	}
1999	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
2000	);	2958	);
2001		2959
2002	=item $client->async (\&cb)	2960	=item $client->async (\&cb)
2003		2961
2004	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
…		…
2045	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
2046	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
2047		3005
2048	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
2049		3007
2050	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
2051		3013
2052	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
2053		3015
2054	=pod	3016	=pod
2055		3017
2056	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
2057		3019
2058	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
2059	cf::object::player player	3024	cf::object::player
2060	cf::player peaceful	3025	player
2061	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
2062		3032
2063	=cut	3033	=cut
2064		3034
2065	for (	3035	for (
2066	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
2067	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
2068	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
2069	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
2070	) {	3042	) {
2071	no strict 'refs';	3043	no strict 'refs';
…		…
2142	=back	3114	=back
2143		3115
2144	=cut	3116	=cut
2145		3117
2146	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
2147		3120
2148	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
2149		3123
2150	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
2151	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
2152	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
2153		3127
2154	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2155	using it, it should be unique.
2156		3129
2157	=over 4	3130	warn "loading facedata from $path\n";
2158		3131
2159	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
2160		3135
2161	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
2162	modified. After modifications, you have to call C<cf::db_dirty> or
2163	C<cf::db_sync>.
2164		3137
2165	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
2166		3140
2167	Returns a single value from the database	3141	# patch in the exptable
2168		3142	$facedata->{resource}{"res/exp_table"} = {
2169	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
2170		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2171	Stores the given family hashref into the database. Updates are delayed, if
2172	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_put $family => $key => $value
2175
2176	Stores the given C<$value> in the family hash. Updates are delayed, if you
2177	want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_dirty
2180
2181	Marks the database as dirty, to be updated at a later time.
2182
2183	=item cf::db_sync
2184
2185	Immediately write the database to disk I<if it is dirty>.
2186
2187	=cut
2188
2189	our $DB;
2190
2191	{
2192	my $path = cf::localdir . "/database.pst";
2193
2194	sub db_load() {
2195	$DB = stat $path ? Storable::retrieve $path : { };
2196	}	3145	};
		3146	cf::cede_to_tick;
2197		3147
2198	my $pid;
2199
2200	sub db_save() {
2201	waitpid $pid, 0 if $pid;
2202	if (0 == ($pid = fork)) {
2203	$DB->{_meta}{version} = 1;
2204	Storable::nstore $DB, "$path~";
2205	rename "$path~", $path;
2206	cf::_exit 0 if defined $pid;
2207	}
2208	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
2209		3150
2210	my $dirty;	3151	while (my ($face, $info) = each %$faces) {
		3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3153	cf::face::set_visibility $idx, $info->{visibility};
		3154	cf::face::set_magicmap $idx, $info->{magicmap};
		3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2211		3157
2212	sub db_sync() {	3158	cf::cede_to_tick;
2213	db_save if $dirty;
2214	undef $dirty;
2215	}
2216
2217	my $idle = Event->idle (
2218	reentrant => 0,
2219	min => 10,
2220	max => 20,
2221	repeat => 0,
2222	data => WF_AUTOCANCEL,
2223	cb => \&db_sync,
2224	);
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3159	}
2251	);
2252	}
2253		3160
2254	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
2256		3171
2257	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3299	or return;
2260		3300
2261	local $/;	3301	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
2263		3303
…		…
2278	sub main {	3318	sub main {
2279	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2282	(async {	3322	(async {
2283	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3324	EV::loop EV::LOOP_ONESHOT;
2284	})->prio (Coro::PRIO_MAX);	3325	})->prio (Coro::PRIO_MAX);
2285	};	3326	};
2286		3327
2287	cfg_load;	3328	reload_config;
2288	db_load;	3329	db_init;
2289	load_extensions;	3330	load_extensions;
2290		3331
2291	$TICK_WATCHER->start;	3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2292	Event::loop;	3334	EV::loop;
2293	}	3335	}
2294		3336
2295	#############################################################################	3337	#############################################################################
2296	# initialisation and cleanup	3338	# initialisation and cleanup
2297		3339
2298	# install some emergency cleanup handlers	3340	# install some emergency cleanup handlers
2299	BEGIN {	3341	BEGIN {
		3342	our %SIGWATCHER = ();
2300	for my $signal (qw(INT HUP TERM)) {	3343	for my $signal (qw(INT HUP TERM)) {
2301	Event->signal (	3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2302	reentrant => 0,
2303	data => WF_AUTOCANCEL,
2304	signal => $signal,
2305	prio => 0,
2306	cb => sub {
2307	cf::cleanup "SIG$signal";	3345	cf::cleanup "SIG$signal";
2308	},
2309	);	3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
2310	}	3385	1
2311	}	3386	}
2312		3387
2313	sub emergency_save() {	3388	sub emergency_save() {
2314	my $freeze_guard = cf::freeze_mainloop;	3389	my $freeze_guard = cf::freeze_mainloop;
2315		3390
…		…
2321	# and maps saved/destroyed asynchronously.	3396	# and maps saved/destroyed asynchronously.
2322	warn "begin emergency player save\n";	3397	warn "begin emergency player save\n";
2323	for my $login (keys %cf::PLAYER) {	3398	for my $login (keys %cf::PLAYER) {
2324	my $pl = $cf::PLAYER{$login} or next;	3399	my $pl = $cf::PLAYER{$login} or next;
2325	$pl->valid or next;	3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2326	$pl->save;	3402	$pl->save;
2327	}	3403	}
2328	warn "end emergency player save\n";	3404	warn "end emergency player save\n";
2329		3405
2330	warn "begin emergency map save\n";	3406	warn "begin emergency map save\n";
…		…
2332	my $map = $cf::MAP{$path} or next;	3408	my $map = $cf::MAP{$path} or next;
2333	$map->valid or next;	3409	$map->valid or next;
2334	$map->save;	3410	$map->save;
2335	}	3411	}
2336	warn "end emergency map save\n";	3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
2337	};	3417	};
2338		3418
2339	warn "leave emergency perl save\n";	3419	warn "leave emergency perl save\n";
2340	}	3420	}
2341		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2342	sub reload() {	3429	sub do_reload_perl() {
2343	# can/must only be called in main	3430	# can/must only be called in main
2344	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2345	warn "can only reload from main coroutine";	3432	warn "can only reload from main coroutine";
2346	return;	3433	return;
2347	}	3434	}
2348		3435
2349	warn "reloading...";	3436	warn "reloading...";
2350		3437
2351	warn "cancelling server ticker";	3438	warn "entering sync_job";
2352	$TICK_WATCHER->cancel;
2353		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2354	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2355		3444
2356	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
2357	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
2358
2359	warn "syncing database to disk";
2360	cf::db_sync;
2361
2362	warn "cancelling all WF_AUTOCANCEL watchers";
2363	for (Event::all_watchers) {
2364	$_->cancel if $_->data & WF_AUTOCANCEL;
2365	}
2366		3449
2367	warn "flushing outstanding aio requests";	3450	warn "flushing outstanding aio requests";
2368	for (;;) {	3451	for (;;) {
		3452	BDB::flush;
2369	IO::AIO::flush;	3453	IO::AIO::flush;
2370	Coro::cede;	3454	Coro::cede_notself;
2371	last unless IO::AIO::nreqs;	3455	last unless IO::AIO::nreqs || BDB::nreqs;
2372	warn "iterate...";	3456	warn "iterate...";
2373	}	3457	}
		3458
		3459	++$RELOAD;
2374		3460
2375	warn "cancelling all extension coros";	3461	warn "cancelling all extension coros";
2376	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2377	%EXT_CORO = ();	3463	%EXT_CORO = ();
2378		3464
2379	warn "removing commands";	3465	warn "removing commands";
2380	%COMMAND = ();	3466	%COMMAND = ();
2381		3467
2382	warn "removing ext commands";	3468	warn "removing ext/exti commands";
2383	%EXTCMD = ();	3469	%EXTCMD = ();
		3470	%EXTICMD = ();
2384		3471
2385	warn "unloading/nuking all extensions";	3472	warn "unloading/nuking all extensions";
2386	for my $pkg (@EXTS) {	3473	for my $pkg (@EXTS) {
2387	warn "... unloading $pkg";	3474	warn "... unloading $pkg";
2388		3475
…		…
2418	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2419	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2420		3507
2421	warn "unloading cf.pm \"a bit\"";	3508	warn "unloading cf.pm \"a bit\"";
2422	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2423		3511
2424	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2425	# and global variables created in xs	3513	# and global variables created in xs
2426	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2427		3515
…		…
2430	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2431	require cf;	3519	require cf;
2432	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2433		3521
2434	warn "loading config and database again";	3522	warn "loading config and database again";
2435	cf::cfg_load;	3523	cf::reload_config;
2436	cf::db_load;
2437		3524
2438	warn "loading extensions";	3525	warn "loading extensions";
2439	cf::load_extensions;	3526	cf::load_extensions;
2440		3527
2441	warn "reattaching attachments to objects/players";	3528	warn "reattaching attachments to objects/players";
2442	_global_reattach;	3529	_global_reattach; # objects, sockets
2443	warn "reattaching attachments to maps";	3530	warn "reattaching attachments to maps";
2444	reattach $_ for values %MAP;	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2445		3534
2446	warn "restarting server ticker";	3535	warn "leaving sync_job";
2447		3536
2448	$TICK_WATCHER->start;	3537	1
2449	};	3538	} or do {
2450
2451	if ($@) {
2452	warn $@;	3539	warn $@;
2453	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2454	exit 1;	3541	exit 1;
2455	}	3542	};
2456		3543
2457	warn "reloaded";	3544	warn "reloaded";
2458	};	3545	};
2459		3546
2460	our $RELOAD_WATCHER; # used only during reload	3547	our $RELOAD_WATCHER; # used only during reload
2461		3548
		3549	sub reload_perl() {
		3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
		3552
		3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3554	undef $RELOAD_WATCHER;
		3555	do_reload_perl;
		3556	};
		3557	}
		3558
2462	register_command "reload" => sub {	3559	register_command "reload" => sub {
2463	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2464		3561
2465	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2466	$who->message ("reloading server.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
		3568	}
		3569	};
2467		3570
2468	# doing reload synchronously and two reloads happen back-to-back,	3571	unshift @INC, $LIBDIR;
2469	# coro crashes during coro_state_free->destroy here.
2470		3572
2471	$RELOAD_WATCHER ||= Event->timer (	3573	my $bug_warning = 0;
2472	reentrant => 0,	3574
2473	after => 0,	3575	our @WAIT_FOR_TICK;
2474	data => WF_AUTOCANCEL,	3576	our @WAIT_FOR_TICK_BEGIN;
		3577
		3578	sub wait_for_tick {
		3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
		3605	cf::server_tick; # one server iteration
		3606
		3607	$RUNTIME += $TICK;
		3608	$NEXT_TICK += $TICK;
		3609
		3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3612	Coro::async_pool {
		3613	$Coro::current->{desc} = "runtime saver";
		3614	write_runtime
		3615	or warn "ERROR: unable to write runtime file: $!";
		3616	};
		3617	}
		3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
2475	cb => sub {	3642	sub {
2476	reload;	3643	$status = $!;
2477	undef $RELOAD_WATCHER;	3644	$current->ready; undef $current;
2478	},	3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
2479	);	3650	)
2480	}	3651	};
2481	};
2482		3652
2483	unshift @INC, $LIBDIR;	3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2484		3659
2485	my $bug_warning = 0;	3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
2486		3668
2487	$TICK_WATCHER = Event->timer (	3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2488	reentrant => 0,	3670	};
2489	parked => 1,	3671
2490	prio => 0,	3672	cf::cleanup "db_env_open(db): $@" if $@;
2491	at => $NEXT_TICK || $TICK,
2492	data => WF_AUTOCANCEL,
2493	cb => sub {
2494	if ($Coro::current != $Coro::main) {
2495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2496	unless ++$bug_warning > 10;
2497	return;
2498	}	3673	};
2499
2500	$NOW = Event::time;
2501
2502	cf::server_tick; # one server iteration
2503	$RUNTIME += $TICK;
2504	$NEXT_TICK += $TICK;
2505
2506	$WAIT_FOR_TICK->broadcast;
2507	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2508
2509	Event::sweep;
2510	Coro::cede_notself;
2511
2512	# my $AFTER = Event::time;
2513	# warn $AFTER - $NOW;#d#
2514
2515	# if we are delayed by four ticks or more, skip them all
2516	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2517
2518	$TICK_WATCHER->at ($NEXT_TICK);
2519	$TICK_WATCHER->start;
2520	},	3674	}
2521	);
2522		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
2523	IO::AIO::max_poll_time $TICK * 0.1;	3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3693	}
2524		3694
2525	undef $Coro::AIO::WATCHER;	3695	my $_log_backtrace;
2526	$AIO_POLL_WATCHER = Event->io (
2527	reentrant => 0,
2528	fd => IO::AIO::poll_fileno,
2529	poll => 'r',
2530	prio => 6,
2531	data => WF_AUTOCANCEL,
2532	cb => \&IO::AIO::poll_cb,
2533	);
2534		3696
2535	$WRITE_RUNTIME_WATCHER = Event->timer (	3697	sub _log_backtrace {
2536	reentrant => 0,	3698	my ($msg, @addr) = @_;
2537	data => WF_AUTOCANCEL,	3699
2538	after => 1,	3700	$msg =~ s/\n//;
2539	interval => 10,	3701
2540	prio => 6, # keep it lowest so it acts like a watchdog	3702	# limit the # of concurrent backtraces
2541	cb => Coro::unblock_sub {	3703	if ($_log_backtrace < 2) {
2542	write_runtime	3704	++$_log_backtrace;
2543	or warn "ERROR: unable to write runtime file: $!";	3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
2544	},	3732	}
2545	);	3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2546		3737
2547	END { cf::emergency_save }	3738	END { cf::emergency_save }
2548		3739
2549	1	3740	1
2550		3741

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