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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.327 by root, Wed Aug 1 17:22:51 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	132	every server tick.
93		133
94	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		203
135	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
160	=cut	227	=item dumpval $ref
161		228
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
163		249
164	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
165		251
166	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
167		253
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
176		255
177	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
178		257
179	=cut	258	=cut
180		259
181	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		261
186	=item my $guard = cf::guard { BLOCK }	262	sub to_json ($) { $json_coder->encode ($_[0]) }
187		263	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		264
208	=item cf::lock_wait $string	265	=item cf::lock_wait $string
209		266
210	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
211		268
212	=item my $lock = cf::lock_acquire $string	269	=item my $lock = cf::lock_acquire $string
213		270
214	Wait until the given lock is available and then acquires it and returns	271	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
217	returned.	274	returned.
218		275
219	Lock names should begin with a unique identifier (for example, find_map	276	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
221		282
222	=cut	283	=cut
223		284
224	our %LOCK;	285	our %LOCK;
225		286
…		…
239	# wait, to be sure we are not locked	300	# wait, to be sure we are not locked
240	lock_wait $key;	301	lock_wait $key;
241		302
242	$LOCK{$key} = [];	303	$LOCK{$key} = [];
243		304
244	cf::guard {	305	Coro::guard {
245	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
247	}	308	}
248	}	309	}
249		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
		383	=item cf::async { BLOCK }
		384
		385	Currently the same as Coro::async_pool, meaning you cannot use
		386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		387	thing you are allowed to do is call C<prio> on it.
		388
		389	=cut
		390
		391	BEGIN { *async = \&Coro::async_pool }
		392
250	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
251		394
252	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
255		399
256	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
259	fast or be very important.	403	fast or be very important.
…		…
262		406
263	sub sync_job(&) {	407	sub sync_job(&) {
264	my ($job) = @_;	408	my ($job) = @_;
265		409
266	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
267	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
269		415
270	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	417	# (but this is cancel-safe)
272	local $FREEZE = 1;	418	my $freeze_guard = freeze_mainloop;
273		419
274	my $busy = 1;	420	my $busy = 1;
275	my @res;	421	my @res;
276		422
277	(Coro::async {	423	(async {
278	@res = eval { $job->() };	424	@res = eval { $job->() };
279	warn $@ if $@;	425	warn $@ if $@;
280	undef $busy;	426	undef $busy;
281	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
282		428
283	while ($busy) {	429	while ($busy) {
284	Coro::cede_notself;	430	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	431	}
		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
287		439
288	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
289	} else {	441	} else {
290	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
291		443
292	$job->()	444	$job->()
293	}	445	}
294	}	446	}
295		447
296	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
297		449
298	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
300		452
301	=cut	453	=cut
302		454
303	sub coro(&) {	455	sub async_ext(&) {
304	my $cb = shift;	456	my $cb = shift;
305		457
306	my $coro; $coro = async {	458	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		459
313	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
315	});	462	});
316	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
317		464
318	$coro	465	$coro
319	}	466	}
320		467
321	sub write_runtime {	468	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		469
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
325	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
326		474
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		476
331	aio_fsync $fh	477	sub _store_scalar {
332	and return;	478	open my $fh, ">", \my $buf
333		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
334	close $fh	481	close $fh;
335	or return;
336		482
337	aio_rename "$runtime~", $runtime	483	$buf
338	and return;	484	}
339		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
340	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	655	}
342		656
343	=back	657	=back
344		658
345	=cut	659	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		660
467	#############################################################################	661	#############################################################################
468		662
469	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
470		664
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
474		668
475	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	671	Crossfire TRT).
478		672
479	=over 4	673	=over 4
480		674
481	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
482		676
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	791	our @CB_MAP = ();
598		792
599	my %attachment;	793	my %attachment;
600		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
601	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
603		803
604	use sort 'stable';	804	use sort 'stable';
605		805
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
640		840
641	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		845
646	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	847	my $pkg = shift @arg;
648		848
649	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
679	}	879	}
680		880
681	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
682	} else {	882	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	884	}
685		885
686	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
687	}	887	}
688		888
…		…
690	if (ref $_[0]) {	890	if (ref $_[0]) {
691	_object_attach @_;	891	_object_attach @_;
692	} else {	892	} else {
693	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
694	}	894	}
		895	_recalc_want;
695	};	896	};
696		897
697	# all those should be optimised	898	# all those should be optimised
698	sub cf::attachable::detach {	899	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
703	reattach ($obj);	904	reattach ($obj);
704	} else {	905	} else {
705	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
706	}	907	}
		908	_recalc_want;
707	};	909	};
708		910
709	sub cf::attachable::attached {	911	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
711		913
…		…
726	";	928	";
727	die if $@;	929	die if $@;
728	}	930	}
729		931
730	our $override;	932	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		934
733	sub override {	935	sub override {
734	$override = 1;	936	$override = 1;
735	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
736	}	938	}
737		939
738	sub do_invoke {	940	sub do_invoke {
739	my $event = shift;	941	my $event = shift;
740	my $callbacks = shift;	942	my $callbacks = shift;
741		943
742	@invoke_results = ();	944	@INVOKE_RESULTS = ();
743		945
744	local $override;	946	local $override;
745		947
746	for (@$callbacks) {	948	for (@$callbacks) {
747	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
764		966
765	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
766		968
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		972
771	=back	973	=back
772		974
773	=cut	975	=cut
774		976
775	#############################################################################	977	#############################################################################
776	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
777		990
778	sub reattach {	991	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		996
782	my $registry = $obj->registry;	997	my $registry = $obj->registry;
783		998
784	@$registry = ();	999	@$registry = ();
785		1000
…		…
832	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
833		1048
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1053	close $fh;
839		1054
840	if (@$objs) {	1055	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1061	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
848	}	1063	}
849	} else {	1064	} else {
850	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
882	or return;	1097	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1099	}
885		1100
886	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1103	return ($data, $av);
889	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
890		1111
891	#############################################################################	1112	#############################################################################
892	# command handling &c	1113	# command handling &c
893		1114
894	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1129	}
909		1130
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1132
912	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
913		1138
914	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
915	called.	1140	called.
916		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
917	=cut	1153	=cut
918		1154
919	sub register_extcmd {	1155	sub register_extcmd {
920	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
921		1157
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
926	}	1165	}
927		1166
928	cf::player->attach (	1167	cf::player->attach (
929	on_command => sub {	1168	on_command => sub {
930	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1178	cf::override;
940	},	1179	},
941	on_extcmd => sub {	1180	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
943		1182
944	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1184
946	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
949	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
950	}	1195	if $reply;
951	}	1196	}
952	} else {	1197	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1199	}
955		1200
956	cf::override;	1201	cf::override;
957	},	1202	},
958	);	1203	);
959		1204
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $pl = load_pl path $login
		1341	or return;
		1342	$cf::PLAYER{$login} = $pl
		1343	}
		1344	}
		1345	}
		1346
		1347	sub save($) {
		1348	my ($pl) = @_;
		1349
		1350	return if $pl->{deny_save};
		1351
		1352	my $path = path $pl;
		1353	my $guard = cf::lock_acquire "user_save:$path";
		1354
		1355	return if $pl->{deny_save};
		1356
		1357	aio_mkdir playerdir $pl, 0770;
		1358	$pl->{last_save} = $cf::RUNTIME;
		1359
		1360	$pl->save_pl ($path);
		1361	Coro::cede;
		1362	}
		1363
		1364	sub new($) {
		1365	my ($login) = @_;
		1366
		1367	my $self = create;
		1368
		1369	$self->ob->name ($login);
		1370	$self->{deny_save} = 1;
		1371
		1372	$cf::PLAYER{$login} = $self;
		1373
		1374	$self
		1375	}
		1376
		1377	=item $pl->quit_character
		1378
		1379	Nukes the player without looking back. If logged in, the connection will
		1380	be destroyed. May block for a long time.
		1381
		1382	=cut
		1383
		1384	sub quit_character {
		1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
		1388
		1389	$pl->{deny_save} = 1;
		1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1391
		1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1393	$pl->deactivate;
		1394	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1395	$pl->ns->destroy if $pl->ns;
		1396
		1397	my $path = playerdir $pl;
		1398	my $temp = "$path~$cf::RUNTIME~deleting~";
		1399	aio_rename $path, $temp;
		1400	delete $cf::PLAYER{$pl->ob->name};
		1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
		1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
		1423	}
		1424
		1425	=item cf::player::list_logins
		1426
		1427	Returns am arrayref of all valid playernames in the system, can take a
		1428	while and may block, so not sync_job-capable, ever.
		1429
		1430	=cut
		1431
		1432	sub list_logins {
		1433	my $dirs = aio_readdir $PLAYERDIR
		1434	or return [];
		1435
		1436	my @logins;
		1437
		1438	for my $login (@$dirs) {
		1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1440	aio_read $fh, 0, 512, my $buf, 0 or next;
		1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1442
		1443	utf8::decode $login;
		1444	push @logins, $login;
		1445	}
		1446
		1447	\@logins
		1448	}
		1449
		1450	=item $player->maps
		1451
		1452	Returns an arrayref of map paths that are private for this
		1453	player. May block.
		1454
		1455	=cut
		1456
		1457	sub maps($) {
		1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
		1462	my $files = aio_readdir playerdir $pl
		1463	or return;
		1464
		1465	my @paths;
		1466
		1467	for (@$files) {
		1468	utf8::decode $_;
		1469	next if /\.(?:pl|pst)$/;
		1470	next unless /^$PATH_SEP/o;
		1471
		1472	push @paths, cf::map::normalise "~$pl/$_";
		1473	}
		1474
		1475	\@paths
		1476	}
		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	if ($self->ns->extcmd == 2) {
		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
		1544	}
		1545
		1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
967	my ($path) = @_;	1573	my ($path) = @_;
968		1574
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1575	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1576
975	warn "loading '$path' into '$pkg'\n";	1577	for my $region (list) {
976		1578	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1579	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1580	if $region->specificity > $specificity;
979		1581	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1582	}
1009		1583
1010	# remove commands	1584	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1585	}
1116		1586
1117	=back	1587	=back
1118
1119		1588
1120	=head3 cf::map	1589	=head3 cf::map
1121		1590
1122	=over 4	1591	=over 4
1123		1592
…		…
1126	package cf::map;	1595	package cf::map;
1127		1596
1128	use Fcntl;	1597	use Fcntl;
1129	use Coro::AIO;	1598	use Coro::AIO;
1130		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1131	our $MAX_RESET = 7200;	1604	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1605	our $DEFAULT_RESET = 3000;
1133		1606
1134	sub generate_random_map {	1607	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1610	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
		1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
		1647	my ($self, $merge) = @_;
		1648
		1649	# we have to keep some variables in memory intact
		1650	local $self->{path};
		1651	local $self->{load_path};
		1652
		1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
		1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
		1662
		1663	# map plan:
		1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
		1671
		1672	$path =~ s/$PATH_SEP/\//go;
		1673
		1674	# treat it as relative path if it starts with
		1675	# something that looks reasonable
		1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1678
		1679	$base =~ s{[^/]+/?$}{};
		1680	$path = "$base/$path";
		1681	}
		1682
		1683	for ($path) {
		1684	redo if s{//}{/};
		1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
		1688
		1689	$path
		1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
1151	}	1750	}
1152		1751
1153	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1154	# all maps in C++...	1753	# all maps in C++...
1155	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1157		1756
1158	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1160	}	1759	}
1161		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
1162	sub try_load_header($) {	1777	sub load_header_from($) {
1163	my ($path) = @_;	1778	my ($self, $path) = @_;
1164		1779
1165	utf8::encode $path;	1780	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1167	or return;	1785	or return;
1168		1786
1169	my $map = cf::map::new	1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
		1828	} else {
		1829	$self->load_header_orig
1170	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1171		1833
1172	$map->load_header ($path)	1834	$self->{deny_reset} = 1
1173	or return;	1835	if $self->no_reset;
1174		1836
1175	$map->{load_path} = $path;	1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
1176		1839
1177	$map	1840	1
1178	}	1841	}
1179		1842
		1843	sub find;
1180	sub find_map {	1844	sub find {
1181	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1182		1846
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1848
1188	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1189		1850
1190	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1192		1853	my $map = new_from_path cf::map $path
1193	# do it the slow way
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1854	or return;
1208		1855
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1857
1222	if ($map->should_reset) {	1858	$map->load_header
		1859	or return;
		1860
		1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1864	$map->reset;
1224	undef $guard;	1865	undef $guard;
1225	$map = find_map $path;	1866	return find $path;
1226	}	1867	}
1227		1868
1228	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1229	}	1870	}
1230	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1231		1875
1232	sub load {	1876	sub load {
1233	my ($self) = @_;	1877	my ($self) = @_;
1234		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1235	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1237		1885
1238	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1239		1887
1240	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1241		1889
1242	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1243	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1244	or return;	1896	or return;
1245		1897
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1247	if delete $self->{load_original};	1899	if delete $self->{load_original};
1248		1900
1249	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	1902	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1252	$self->clear_unique_items;	1904	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1254	}	1906	}
1255	}	1907	}
1256		1908
		1909	Coro::cede;
1257	# now do the right thing for maps	1910	# now do the right thing for maps
1258	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	1913	unless $self->difficulty;
		1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1270	$self->activate;	1923	$self->activate;
1271	}	1924	}
1272		1925
		1926	$self->{last_save} = $cf::RUNTIME;
		1927	$self->last_access ($cf::RUNTIME);
		1928
1273	$self->in_memory (cf::MAP_IN_MEMORY);	1929	$self->in_memory (cf::MAP_IN_MEMORY);
1274	}	1930	}
1275		1931
1276	sub load_map_sync {	1932	$self->post_load;
		1933	}
		1934
		1935	sub customise_for {
		1936	my ($self, $ob) = @_;
		1937
		1938	return find "~" . $ob->name . "/" . $self->{path}
		1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
		1943
		1944	$self
		1945	}
		1946
		1947	# find and load all maps in the 3x3 area around a map
		1948	sub load_diag {
		1949	my ($map) = @_;
		1950
		1951	my @diag; # diagonal neighbours
		1952
		1953	for (0 .. 3) {
		1954	my $neigh = $map->tile_path ($_)
		1955	or next;
		1956	$neigh = find $neigh, $map
		1957	or next;
		1958	$neigh->load;
		1959
		1960	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1961	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1962	}
		1963
		1964	for (@diag) {
		1965	my $neigh = find @$_
		1966	or next;
		1967	$neigh->load;
		1968	}
		1969	}
		1970
		1971	sub find_sync {
1277	my ($path, $origin) = @_;	1972	my ($path, $origin) = @_;
1278		1973
1279	#warn "load_map_sync<$path, $origin>\n";#d#	1974	cf::sync_job { find $path, $origin }
		1975	}
1280		1976
1281	cf::sync_job {	1977	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	1978	my ($map) = @_;
1283	or return;	1979
		1980	cf::sync_job { $map->load };
		1981	}
		1982
		1983	our %MAP_PREFETCH;
		1984	our $MAP_PREFETCHER = undef;
		1985
		1986	sub find_async {
		1987	my ($path, $origin) = @_;
		1988
		1989	$path = normalise $path, $origin && $origin->{path};
		1990
		1991	if (my $map = $cf::MAP{$path}) {
		1992	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1993	}
		1994
		1995	undef $MAP_PREFETCH{$path};
		1996	$MAP_PREFETCHER ||= cf::async {
		1997	while (%MAP_PREFETCH) {
		1998	for my $path (keys %MAP_PREFETCH) {
		1999	if (my $map = find $path) {
1284	$map->load;	2000	$map->load;
1285	$map	2001	}
		2002
		2003	delete $MAP_PREFETCH{$path};
		2004	}
		2005	}
		2006	undef $MAP_PREFETCHER;
1286	}	2007	};
		2008	$MAP_PREFETCHER->prio (6);
		2009
		2010	()
1287	}	2011	}
1288		2012
1289	sub save {	2013	sub save {
1290	my ($self) = @_;	2014	my ($self) = @_;
1291		2015
		2016	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2017
1292	$self->{last_save} = $cf::RUNTIME;	2018	$self->{last_save} = $cf::RUNTIME;
1293		2019
1294	return unless $self->dirty;	2020	return unless $self->dirty;
1295		2021
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2022	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2023	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2024
1299	$self->{load_path} = $save;	2025	$self->{load_path} = $save;
1300		2026
1301	return if $self->{deny_save};	2027	return if $self->{deny_save};
1302		2028
		2029	local $self->{last_access} = $self->last_access;#d#
		2030
		2031	cf::async {
		2032	$_->contr->save for $self->players;
		2033	};
		2034
1303	if ($uniq) {	2035	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	2037	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	2038	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2039	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	2040	}
1309	}	2041	}
1310		2042
1311	sub swap_out {	2043	sub swap_out {
1312	my ($self) = @_;	2044	my ($self) = @_;
		2045
		2046	# save first because save cedes
		2047	$self->save;
		2048
		2049	my $lock = cf::lock_acquire "map_data:" . $self->path;
1313		2050
1314	return if $self->players;	2051	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	2052	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};	2053	return if $self->{deny_save};
1317		2054
1318	$self->save;
1319	$self->clear;	2055	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);	2056	$self->in_memory (cf::MAP_SWAPPED);
1321	}	2057	}
1322		2058
1323	sub reset_at {	2059	sub reset_at {
1324	my ($self) = @_;	2060	my ($self) = @_;
1325		2061
1326	# TODO: safety, remove and allow resettable per-player maps	2062	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	2063	return 1e99 if $self->{deny_reset};
1329		2064
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		2067
…		…
1337	my ($self) = @_;	2072	my ($self) = @_;
1338		2073
1339	$self->reset_at <= $cf::RUNTIME	2074	$self->reset_at <= $cf::RUNTIME
1340	}	2075	}
1341		2076
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	2077	sub reset {
1364	my ($self) = @_;	2078	my ($self) = @_;
1365		2079
		2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2081
1366	return if $self->players;	2082	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		2083
1369	warn "resetting map ", $self->path;#d#	2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
1370		2095
1371	delete $cf::MAP{$self->path};	2096	delete $cf::MAP{$self->path};
		2097
		2098	$self->clear;
1372		2099
1373	$_->clear_links_to ($self) for values %cf::MAP;	2100	$_->clear_links_to ($self) for values %cf::MAP;
1374		2101
1375	$self->unlink_save;	2102	$self->unlink_save;
1376	$self->destroy;	2103	$self->destroy;
…		…
1379	my $nuke_counter = "aaaa";	2106	my $nuke_counter = "aaaa";
1380		2107
1381	sub nuke {	2108	sub nuke {
1382	my ($self) = @_;	2109	my ($self) = @_;
1383		2110
		2111	delete $cf::MAP{$self->path};
		2112
		2113	$self->unlink_save;
		2114
		2115	bless $self, "cf::map";
		2116	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	2117	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2118	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2119	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2120
		2121	$cf::MAP{$self->path} = $self;
		2122
1387	$self->reset; # polite request, might not happen	2123	$self->reset; # polite request, might not happen
1388	}	2124	}
1389		2125
1390	sub customise_for {	2126	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2127
1393	if ($map->per_player) {	2128	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
1395	}	2134	[
1396		2135	map {
1397	$map	2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
1398	}	2142	}
1399		2143
1400	sub emergency_save {	2144	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2145
1403	warn "enter emergency map save\n";	2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
1404		2148
1405	cf::sync_job {	2149	=cut
1406	warn "begin emergency map save\n";
1407	$_->save for values %cf::MAP;
1408	};
1409		2150
1410	warn "end emergency map save\n";	2151	sub random_maps() {
		2152	[
		2153	map {
		2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
		2161
		2162	=item cf::map::unique_maps
		2163
		2164	Returns an arrayref of paths of all shared maps that have
		2165	instantiated unique items. May block.
		2166
		2167	=cut
		2168
		2169	sub unique_maps() {
		2170	[
		2171	map {
		2172	utf8::decode $_;
		2173	/\.map$/
		2174	? normalise $_
		2175	: ()
		2176	} @{ aio_readdir $UNIQUEDIR or [] }
		2177	]
1411	}	2178	}
1412		2179
1413	package cf;	2180	package cf;
1414		2181
1415	=back	2182	=back
1416		2183
		2184	=head3 cf::object
		2185
		2186	=cut
		2187
		2188	package cf::object;
		2189
		2190	=over 4
		2191
		2192	=item $ob->inv_recursive
		2193
		2194	Returns the inventory of the object _and_ their inventories, recursively.
		2195
		2196	=cut
		2197
		2198	sub inv_recursive_;
		2199	sub inv_recursive_ {
		2200	map { $_, inv_recursive_ $_->inv } @_
		2201	}
		2202
		2203	sub inv_recursive {
		2204	inv_recursive_ inv $_[0]
		2205	}
		2206
		2207	package cf;
		2208
		2209	=back
1417		2210
1418	=head3 cf::object::player	2211	=head3 cf::object::player
1419		2212
1420	=over 4	2213	=over 4
1421		2214
…		…
1435		2228
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2230
1438	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
1440	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
1443	}	2245	}
1444	}	2246	}
1445		2247
1446	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1447		2249
…		…
1461		2263
1462	=item $player_object->enter_link	2264	=item $player_object->enter_link
1463		2265
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2266	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2267
1466	The player should be reaosnably safe there for short amounts of time. You	2268	The player should be reasonably safe there for short amounts of time. You
1467	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1468		2270
		2271	Will never block.
		2272
1469	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1470		2274
1471	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2278	fails, to the emergency map position.
1475		2279
1476	Might block.	2280	Might block.
1477		2281
1478	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
1479		2293
1480	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2295	my ($self) = @_;
1482		2296
1483	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1484		2298
1485	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2300
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1489		2303
1490	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2305	}
1492		2306
1493	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1495		2311
1496	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1497		2313
1498	unless ($map) {	2314	unless ($map) {
1499	# restore original map position	2315	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2316	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2317	$map = cf::map::find $map;
1502		2318
1503	unless ($map) {	2319	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2320	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2321	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2322	or die "FATAL: cannot load emergency map\n";
1507	}	2323	}
1508	}	2324	}
1509		2325
1510	($x, $y) = (-1, -1)	2326	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1516		2332
1517	$map->load;	2333	$map->load;
		2334	$map->load_diag;
1518		2335
		2336	return unless $self->contr->active;
1519	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1521	}	2341	}
1522		2342
1523	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1524	on_logout => sub {
1525	my ($pl) = @_;
1526		2344
1527	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1528	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1529	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1530	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1531	};	2349	be called at the end of this process.
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536		2350
1537	# try to abort aborted map switching on player login :)
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550
1551	=item $player_object->goto_map ($path, $x, $y)
1552
1553	=cut	2351	=cut
1554		2352
		2353	our $GOTOGEN;
		2354
1555	sub cf::object::player::goto_map {	2355	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2360
1558	$self->enter_link;	2361	$self->enter_link;
1559		2362
1560	(Coro::async {	2363	(async {
1561	$path = new cf::path $path;	2364	my $map = eval {
1562
1563	my $map = cf::map::find_map $path->as_string;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
1565		2369	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2370	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
1570		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1572	})->prio (1);	2388	})->prio (1);
1573	}	2389	}
1574		2390
1575	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1576		2392
…		…
1578		2394
1579	sub parse_random_map_params {	2395	sub parse_random_map_params {
1580	my ($spec) = @_;	2396	my ($spec) = @_;
1581		2397
1582	my $rmp = { # defaults	2398	my $rmp = { # defaults
1583	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1585	};	2403	};
1586		2404
1587	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1589		2407
…		…
1593	$rmp	2411	$rmp
1594	}	2412	}
1595		2413
1596	sub prepare_random_map {	2414	sub prepare_random_map {
1597	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1598		2418
1599	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1600	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1601	# that depends on the exit object	2421	# that depends on the exit object
1602		2422
1603	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1604		2424
1605	if ($exit->map) {	2425	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1610	}	2430	}
1611		2431
1612	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1613		2433
1614	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1615	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1616		2437
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
1619		2442
1620	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2444	$exit->msg (undef);
1622	}	2445	}
1623	}	2446	}
…		…
1625	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1627		2450
1628	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1629		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
1630	$self->enter_link;	2464	$self->enter_link;
1631		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
1632	(Coro::async {	2470	(async {
		2471	$self->deactivate_recursive; # just to be sure
1633	unless (eval {	2472	unless (eval {
1634		2473	$self->goto ($slaying, $hp, $sp);
1635	prepare_random_map $exit
1636	if $exit->slaying eq "/!";
1637
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1640		2474
1641	1;	2475	1;
1642	}) {	2476	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1644	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2479	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2481
1648	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2483	$self->leave_link;
1650	}	2484	}
1651	})->prio (1);	2485	})->prio (1);
…		…
1664		2498
1665	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1667		2501
1668	utf8::encode $text;	2502	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2504	}
1671		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	utf8::encode $msg;
		2556
		2557	if (0 && $msg =~ /\[/) {
		2558	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2559	} else {
		2560	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2561	$self->send_packet ("drawinfo $color $msg")
		2562	}
		2563	}
		2564	}
		2565	}
		2566
		2567	=item $client->ext_msg ($type, @msg)
		2568
		2569	Sends an ext event to the client.
		2570
		2571	=cut
		2572
		2573	sub cf::client::ext_msg($$@) {
		2574	my ($self, $type, @msg) = @_;
		2575
		2576	my $extcmd = $self->extcmd;
		2577
		2578	if ($extcmd == 2) {
		2579	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2580	} elsif ($extcmd == 1) { # TODO: remove
		2581	push @msg, msgtype => "event_$type";
		2582	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2583	}
		2584	}
1672		2585
1673	=item $success = $client->query ($flags, "text", \&cb)	2586	=item $success = $client->query ($flags, "text", \&cb)
1674		2587
1675	Queues a query to the client, calling the given callback with	2588	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2589	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2590	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2591
1679	Queries can fail, so check the return code. Or don't, as queries will become	2592	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2593	become reliable at some point in the future.
1681		2594
1682	=cut	2595	=cut
1683		2596
1684	sub cf::client::query {	2597	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2598	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2606	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2607	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2608
1696	$self->send_packet ($self->{query_queue}[0][0])	2609	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2610	if @{ $self->{query_queue} } == 1;
		2611
		2612	1
1698	}	2613	}
1699		2614
1700	cf::client->attach (	2615	cf::client->attach (
		2616	on_connect => sub {
		2617	my ($ns) = @_;
		2618
		2619	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2620	},
1701	on_reply => sub {	2621	on_reply => sub {
1702	my ($ns, $msg) = @_;	2622	my ($ns, $msg) = @_;
1703		2623
1704	# this weird shuffling is so that direct followup queries	2624	# this weird shuffling is so that direct followup queries
1705	# get handled first	2625	# get handled first
1706	my $queue = delete $ns->{query_queue};	2626	my $queue = delete $ns->{query_queue}
		2627	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2628
1708	(shift @$queue)->[1]->($msg);	2629	(shift @$queue)->[1]->($msg);
		2630	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2631
1710	push @{ $ns->{query_queue} }, @$queue;	2632	push @{ $ns->{query_queue} }, @$queue;
1711		2633
1712	if (@{ $ns->{query_queue} } == @$queue) {	2634	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2635	if (@$queue) {
…		…
1715	} else {	2637	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2638	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2639	}
1718	}	2640	}
1719	},	2641	},
		2642	on_exticmd => sub {
		2643	my ($ns, $buf) = @_;
		2644
		2645	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2646
		2647	if (ref $msg) {
		2648	my ($type, $reply, @payload) =
		2649	"ARRAY" eq ref $msg
		2650	? @$msg
		2651	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2652
		2653	if (my $cb = $EXTICMD{$type}) {
		2654	my @reply = $cb->($ns, @payload);
		2655
		2656	$ns->ext_reply ($reply, @reply)
		2657	if $reply;
		2658	}
		2659	} else {
		2660	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2661	}
		2662
		2663	cf::override;
		2664	},
1720	);	2665	);
1721		2666
1722	=item $client->coro (\&cb)	2667	=item $client->async (\&cb)
1723		2668
1724	Create a new coroutine, running the specified callback. The coroutine will	2669	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	2670	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	2671	or loss of connection).
1727		2672
1728	=cut	2673	=cut
1729		2674
1730	sub cf::client::coro {	2675	sub cf::client::async {
1731	my ($self, $cb) = @_;	2676	my ($self, $cb) = @_;
1732		2677
1733	my $coro; $coro = async {	2678	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		2679
1740	$coro->on_destroy (sub {	2680	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	2681	delete $self->{_coro}{$coro+0};
1742	});	2682	});
1743		2683
…		…
1776		2716
1777	# here we export the classes and methods available to script code	2717	# here we export the classes and methods available to script code
1778		2718
1779	=pod	2719	=pod
1780		2720
1781	The following fucntions and emthods are available within a safe environment:	2721	The following functions and methods are available within a safe environment:
1782		2722
1783	cf::object contr pay_amount pay_player map	2723	cf::object
		2724	contr pay_amount pay_player map x y force_find force_add
		2725	insert remove
		2726
1784	cf::object::player player	2727	cf::object::player
1785	cf::player peaceful	2728	player
1786	cf::map trigger	2729
		2730	cf::player
		2731	peaceful
		2732
		2733	cf::map
		2734	trigger
1787		2735
1788	=cut	2736	=cut
1789		2737
1790	for (	2738	for (
1791	["cf::object" => qw(contr pay_amount pay_player map)],	2739	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2740	insert remove)],
1792	["cf::object::player" => qw(player)],	2741	["cf::object::player" => qw(player)],
1793	["cf::player" => qw(peaceful)],	2742	["cf::player" => qw(peaceful)],
1794	["cf::map" => qw(trigger)],	2743	["cf::map" => qw(trigger)],
1795	) {	2744	) {
1796	no strict 'refs';	2745	no strict 'refs';
…		…
1867	=back	2816	=back
1868		2817
1869	=cut	2818	=cut
1870		2819
1871	#############################################################################	2820	#############################################################################
		2821	# the server's init and main functions
1872		2822
1873	=head2 EXTENSION DATABASE SUPPORT	2823	sub load_facedata($) {
		2824	my ($path) = @_;
1874		2825
1875	Crossfire maintains a very simple database for extension use. It can	2826	warn "loading facedata from $path\n";
1876	currently store anything that can be serialised using Storable, which
1877	excludes objects.
1878		2827
1879	The parameter C<$family> should best start with the name of the extension	2828	my $facedata;
1880	using it, it should be unique.	2829	0 < aio_load $path, $facedata
		2830	or die "$path: $!";
1881		2831
1882	=over 4	2832	$facedata = Coro::Storable::thaw $facedata;
1883		2833
1884	=item $hashref = cf::db_get $family	2834	$facedata->{version} == 2
		2835	or cf::cleanup "$path: version mismatch, cannot proceed.";
1885		2836
1886	Return a hashref for use by the extension C<$family>, which can be
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889
1890	=item $value = cf::db_get $family => $key
1891
1892	Returns a single value from the database
1893
1894	=item cf::db_put $family => $hashref
1895
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}	2837	{
		2838	my $faces = $facedata->{faceinfo};
1922		2839
1923	my $pid;	2840	while (my ($face, $info) = each %$faces) {
		2841	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2842	cf::face::set_visibility $idx, $info->{visibility};
		2843	cf::face::set_magicmap $idx, $info->{magicmap};
		2844	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2845	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1924		2846
1925	sub db_save() {	2847	cf::cede_to_tick;
1926	waitpid $pid, 0 if $pid;
1927	if (0 == ($pid = fork)) {
1928	$DB->{_meta}{version} = 1;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});
1945
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}
1950
1951	sub db_get($;$) {
1952	@_ >= 2
1953	? $DB->{$_[0]}{$_[1]}
1954	: ($DB->{$_[0]} ||= { })
1955	}
1956
1957	sub db_put($$;$) {
1958	if (@_ >= 3) {
1959	$DB->{$_[0]}{$_[1]} = $_[2];
1960	} else {
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965
1966	cf::global->attach (
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	2848	}
1971	);
1972	}
1973		2849
1974	#############################################################################	2850	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	2851	next unless $info->{smooth};
		2852	my $idx = cf::face::find $face
		2853	or next;
		2854	if (my $smooth = cf::face::find $info->{smooth}) {
		2855	cf::face::set_smooth $idx, $smooth;
		2856	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2857	} else {
		2858	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2859	}
		2860
		2861	cf::cede_to_tick;
		2862	}
		2863	}
		2864
		2865	{
		2866	my $anims = $facedata->{animinfo};
		2867
		2868	while (my ($anim, $info) = each %$anims) {
		2869	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2870	cf::cede_to_tick;
		2871	}
		2872
		2873	cf::anim::invalidate_all; # d'oh
		2874	}
		2875
		2876	{
		2877	# TODO: for gcfclient pleasure, we should give resources
		2878	# that gcfclient doesn't grok a >10000 face index.
		2879	my $res = $facedata->{resource};
		2880	my $enc = JSON::XS->new->utf8->canonical;
		2881
		2882	my $soundconf = delete $res->{"res/sound.conf"};
		2883
		2884	while (my ($name, $info) = each %$res) {
		2885	my $meta = $enc->encode ({
		2886	name => $name,
		2887	%{ $info->{meta} || {} },
		2888	});
		2889
		2890	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2891
		2892	if ($info->{type} & 1) {
		2893	# prepend meta info
		2894
		2895	my $data = pack "(w/a*)*", $meta, $info->{data};
		2896	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2897
		2898	cf::face::set_data $idx, 0, $data, $chk;
		2899	} else {
		2900	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2901	}
		2902
		2903	cf::face::set_type $idx, $info->{type};
		2904
		2905	cf::cede_to_tick;
		2906	}
		2907
		2908	if ($soundconf) {
		2909	$soundconf = $enc->decode (delete $soundconf->{data});
		2910
		2911	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2912	my $sound = $soundconf->{compat}[$_]
		2913	or next;
		2914
		2915	my $face = cf::face::find "sound/$sound->[1]";
		2916	cf::sound::set $sound->[0] => $face;
		2917	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2918	}
		2919
		2920	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2921	my $face = cf::face::find "sound/$v";
		2922	cf::sound::set $k => $face;
		2923	}
		2924	}
		2925	}
		2926
		2927	1
		2928	}
		2929
		2930	register_exticmd fx_want => sub {
		2931	my ($ns, $want) = @_;
		2932
		2933	while (my ($k, $v) = each %$want) {
		2934	$ns->fx_want ($k, $v);
		2935	}
		2936	};
		2937
		2938	sub reload_regions {
		2939	load_resource_file "$MAPDIR/regions"
		2940	or die "unable to load regions file\n";
		2941
		2942	for (cf::region::list) {
		2943	$_->{match} = qr/$_->{match}/
		2944	if exists $_->{match};
		2945	}
		2946	}
		2947
		2948	sub reload_facedata {
		2949	load_facedata "$DATADIR/facedata"
		2950	or die "unable to load facedata\n";
		2951	}
		2952
		2953	sub reload_archetypes {
		2954	load_resource_file "$DATADIR/archetypes"
		2955	or die "unable to load archetypes\n";
		2956	#d# NEED to laod twice to resolve forward references
		2957	# this really needs to be done in an extra post-pass
		2958	# (which needs to be synchronous, so solve it differently)
		2959	load_resource_file "$DATADIR/archetypes"
		2960	or die "unable to load archetypes\n";
		2961	}
		2962
		2963	sub reload_treasures {
		2964	load_resource_file "$DATADIR/treasures"
		2965	or die "unable to load treasurelists\n";
		2966	}
		2967
		2968	sub reload_resources {
		2969	warn "reloading resource files...\n";
		2970
		2971	reload_regions;
		2972	reload_facedata;
		2973	#reload_archetypes;#d#
		2974	reload_archetypes;
		2975	reload_treasures;
		2976
		2977	warn "finished reloading resource files\n";
		2978	}
		2979
		2980	sub init {
		2981	reload_resources;
		2982	}
1976		2983
1977	sub cfg_load {	2984	sub cfg_load {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	2985	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	2986	or return;
1980		2987
1981	local $/;	2988	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	2989	*CFG = YAML::Syck::Load <$fh>;
		2990
		2991	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2992
		2993	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2994	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2995
		2996	if (exists $CFG{mlockall}) {
		2997	eval {
		2998	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2999	and die "WARNING: m(un)lockall failed: $!\n";
		3000	};
		3001	warn $@ if $@;
		3002	}
1983	}	3003	}
1984		3004
1985	sub main {	3005	sub main {
1986	# we must not ever block the main coroutine	3006	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	3007	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3008	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	3009	(async {
1990	Event::one_event;	3010	Event::one_event;
1991	})->();	3011	})->prio (Coro::PRIO_MAX);
1992	};	3012	};
1993		3013
1994	cfg_load;	3014	cfg_load;
1995	db_load;	3015	db_init;
1996	load_extensions;	3016	load_extensions;
		3017
		3018	$TICK_WATCHER->start;
1997	Event::loop;	3019	Event::loop;
1998	}	3020	}
1999		3021
2000	#############################################################################	3022	#############################################################################
2001	# initialisation	3023	# initialisation and cleanup
2002		3024
		3025	# install some emergency cleanup handlers
		3026	BEGIN {
		3027	for my $signal (qw(INT HUP TERM)) {
		3028	Event->signal (
		3029	reentrant => 0,
		3030	data => WF_AUTOCANCEL,
		3031	signal => $signal,
		3032	prio => 0,
		3033	cb => sub {
		3034	cf::cleanup "SIG$signal";
		3035	},
		3036	);
		3037	}
		3038	}
		3039
		3040	sub write_runtime {
		3041	my $runtime = "$LOCALDIR/runtime";
		3042
		3043	# first touch the runtime file to show we are still running:
		3044	# the fsync below can take a very very long time.
		3045
		3046	IO::AIO::aio_utime $runtime, undef, undef;
		3047
		3048	my $guard = cf::lock_acquire "write_runtime";
		3049
		3050	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3051	or return;
		3052
		3053	my $value = $cf::RUNTIME + 90 + 10;
		3054	# 10 is the runtime save interval, for a monotonic clock
		3055	# 60 allows for the watchdog to kill the server.
		3056
		3057	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3058	and return;
		3059
		3060	# always fsync - this file is important
		3061	aio_fsync $fh
		3062	and return;
		3063
		3064	# touch it again to show we are up-to-date
		3065	aio_utime $fh, undef, undef;
		3066
		3067	close $fh
		3068	or return;
		3069
		3070	aio_rename "$runtime~", $runtime
		3071	and return;
		3072
		3073	warn "runtime file written.\n";
		3074
		3075	1
		3076	}
		3077
		3078	sub emergency_save() {
		3079	my $freeze_guard = cf::freeze_mainloop;
		3080
		3081	warn "enter emergency perl save\n";
		3082
		3083	cf::sync_job {
		3084	# use a peculiar iteration method to avoid tripping on perl
		3085	# refcount bugs in for. also avoids problems with players
		3086	# and maps saved/destroyed asynchronously.
		3087	warn "begin emergency player save\n";
		3088	for my $login (keys %cf::PLAYER) {
		3089	my $pl = $cf::PLAYER{$login} or next;
		3090	$pl->valid or next;
		3091	$pl->save;
		3092	}
		3093	warn "end emergency player save\n";
		3094
		3095	warn "begin emergency map save\n";
		3096	for my $path (keys %cf::MAP) {
		3097	my $map = $cf::MAP{$path} or next;
		3098	$map->valid or next;
		3099	$map->save;
		3100	}
		3101	warn "end emergency map save\n";
		3102
		3103	warn "begin emergency database checkpoint\n";
		3104	BDB::db_env_txn_checkpoint $DB_ENV;
		3105	warn "end emergency database checkpoint\n";
		3106	};
		3107
		3108	warn "leave emergency perl save\n";
		3109	}
		3110
		3111	sub post_cleanup {
		3112	my ($make_core) = @_;
		3113
		3114	warn Carp::longmess "post_cleanup backtrace"
		3115	if $make_core;
		3116	}
		3117
2003	sub reload() {	3118	sub do_reload_perl() {
2004	# can/must only be called in main	3119	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	3120	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	3121	warn "can only reload from main coroutine";
2007	return;	3122	return;
2008	}	3123	}
2009		3124
2010	warn "reloading...";	3125	warn "reloading...";
2011		3126
2012	local $FREEZE = 1;	3127	warn "entering sync_job";
		3128
		3129	cf::sync_job {
		3130	cf::write_runtime; # external watchdog should not bark
2013	cf::emergency_save;	3131	cf::emergency_save;
		3132	cf::write_runtime; # external watchdog should not bark
2014		3133
2015	eval {	3134	warn "syncing database to disk";
		3135	BDB::db_env_txn_checkpoint $DB_ENV;
		3136
2016	# if anything goes wrong in here, we should simply crash as we already saved	3137	# if anything goes wrong in here, we should simply crash as we already saved
2017		3138
2018	# cancel all watchers	3139	warn "cancelling all WF_AUTOCANCEL watchers";
2019	for (Event::all_watchers) {	3140	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	3141	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}	3142	}
2022		3143
		3144	warn "flushing outstanding aio requests";
		3145	for (;;) {
		3146	BDB::flush;
		3147	IO::AIO::flush;
		3148	Coro::cede;
		3149	last unless IO::AIO::nreqs || BDB::nreqs;
		3150	warn "iterate...";
		3151	}
		3152
		3153	++$RELOAD;
		3154
2023	# cancel all extension coros	3155	warn "cancelling all extension coros";
2024	$_->cancel for values %EXT_CORO;	3156	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	3157	%EXT_CORO = ();
2026		3158
2027	# unload all extensions	3159	warn "removing commands";
2028	for (@exts) {	3160	%COMMAND = ();
		3161
		3162	warn "removing ext/exti commands";
		3163	%EXTCMD = ();
		3164	%EXTICMD = ();
		3165
		3166	warn "unloading/nuking all extensions";
		3167	for my $pkg (@EXTS) {
2029	warn "unloading <$_>";	3168	warn "... unloading $pkg";
2030	unload_extension $_;	3169
		3170	if (my $cb = $pkg->can ("unload")) {
		3171	eval {
		3172	$cb->($pkg);
		3173	1
		3174	} or warn "$pkg unloaded, but with errors: $@";
2031	}	3175	}
2032		3176
		3177	warn "... nuking $pkg";
		3178	Symbol::delete_package $pkg;
		3179	}
		3180
2033	# unload all modules loaded from $LIBDIR	3181	warn "unloading all perl modules loaded from $LIBDIR";
2034	while (my ($k, $v) = each %INC) {	3182	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3183	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036		3184
2037	warn "removing <$k>";	3185	warn "... unloading $k";
2038	delete $INC{$k};	3186	delete $INC{$k};
2039		3187
2040	$k =~ s/\.pm$//;	3188	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;	3189	$k =~ s/\//::/g;
2042		3190
…		…
2045	}	3193	}
2046		3194
2047	Symbol::delete_package $k;	3195	Symbol::delete_package $k;
2048	}	3196	}
2049		3197
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	3198	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	3199	Symbol::delete_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3200	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		3201
2058	# remove register_script_function callbacks
2059	# TODO
2060
2061	# unload cf.pm "a bit"	3202	warn "unloading cf.pm \"a bit\"";
2062	delete $INC{"cf.pm"};	3203	delete $INC{"cf.pm"};
		3204	delete $INC{"cf/pod.pm"};
2063		3205
2064	# don't, removes xs symbols, too,	3206	# don't, removes xs symbols, too,
2065	# and global variables created in xs	3207	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	3208	#Symbol::delete_package __PACKAGE__;
2067		3209
2068	# reload cf.pm	3210	warn "unload completed, starting to reload now";
		3211
2069	warn "reloading cf.pm";	3212	warn "reloading cf.pm";
2070	require cf;	3213	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3214	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		3215
2073	# load config and database again	3216	warn "loading config and database again";
2074	cf::cfg_load;	3217	cf::cfg_load;
2075	cf::db_load;
2076		3218
2077	# load extensions
2078	warn "load extensions";	3219	warn "loading extensions";
2079	cf::load_extensions;	3220	cf::load_extensions;
2080		3221
2081	# reattach attachments to objects	3222	warn "reattaching attachments to objects/players";
2082	warn "reattach";	3223	_global_reattach; # objects, sockets
2083	_global_reattach;	3224	warn "reattaching attachments to maps";
2084	};	3225	reattach $_ for values %MAP;
		3226	warn "reattaching attachments to players";
		3227	reattach $_ for values %PLAYER;
2085		3228
2086	if ($@) {	3229	warn "leaving sync_job";
		3230
		3231	1
		3232	} or do {
2087	warn $@;	3233	warn $@;
2088	warn "error while reloading, exiting.";	3234	warn "error while reloading, exiting.";
2089	exit 1;	3235	exit 1;
2090	}	3236	};
2091		3237
2092	warn "reloaded successfully";	3238	warn "reloaded";
2093	};	3239	};
2094		3240
2095	#############################################################################	3241	our $RELOAD_WATCHER; # used only during reload
2096		3242
2097	unless ($LINK_MAP) {	3243	sub reload_perl() {
2098	$LINK_MAP = cf::map::new;	3244	# doing reload synchronously and two reloads happen back-to-back,
		3245	# coro crashes during coro_state_free->destroy here.
2099		3246
2100	$LINK_MAP->width (41);	3247	$RELOAD_WATCHER ||= Event->timer (
2101	$LINK_MAP->height (41);	3248	reentrant => 0,
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,	3249	after => 0,
		3250	data => WF_AUTOCANCEL,
2110	cb => sub {	3251	cb => sub {
2111	$_[0]->w->cancel;	3252	do_reload_perl;
2112		3253	undef $RELOAD_WATCHER;
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});	3254	},
2131		3255	);
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3256	}
2137
2138	register "<global>", __PACKAGE__;
2139		3257
2140	register_command "reload" => sub {	3258	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3259	my ($who, $arg) = @_;
2142		3260
2143	if ($who->flag (FLAG_WIZ)) {	3261	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3262	$who->message ("reloading server.");
		3263	async { reload_perl };
2147	}	3264	}
2148	};	3265	};
2149		3266
2150	unshift @INC, $LIBDIR;	3267	unshift @INC, $LIBDIR;
2151		3268
		3269	my $bug_warning = 0;
		3270
		3271	our @WAIT_FOR_TICK;
		3272	our @WAIT_FOR_TICK_BEGIN;
		3273
		3274	sub wait_for_tick {
		3275	return unless $TICK_WATCHER->is_active;
		3276	return if $Coro::current == $Coro::main;
		3277
		3278	my $signal = new Coro::Signal;
		3279	push @WAIT_FOR_TICK, $signal;
		3280	$signal->wait;
		3281	}
		3282
		3283	sub wait_for_tick_begin {
		3284	return unless $TICK_WATCHER->is_active;
		3285	return if $Coro::current == $Coro::main;
		3286
		3287	my $signal = new Coro::Signal;
		3288	push @WAIT_FOR_TICK_BEGIN, $signal;
		3289	$signal->wait;
		3290	}
		3291
		3292	my $min = 1e6;#d#
		3293	my $avg = 10;
2152	$TICK_WATCHER = Event->timer (	3294	$TICK_WATCHER = Event->timer (
2153	reentrant => 0,	3295	reentrant => 0,
		3296	parked => 1,
2154	prio => 0,	3297	prio => 0,
2155	at => $NEXT_TICK || $TICK,	3298	at => $NEXT_TICK || $TICK,
2156	data => WF_AUTOCANCEL,	3299	data => WF_AUTOCANCEL,
2157	cb => sub {	3300	cb => sub {
2158	unless ($FREEZE) {	3301	if ($Coro::current != $Coro::main) {
		3302	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3303	unless ++$bug_warning > 10;
		3304	return;
		3305	}
		3306
		3307	$NOW = $tick_start = Event::time;
		3308
2159	cf::server_tick; # one server iteration	3309	cf::server_tick; # one server iteration
2160	$RUNTIME += $TICK;	3310
		3311	0 && sync_job {#d#
		3312	for(1..10) {
		3313	my $t = Event::time;
		3314	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3315	or die;
		3316
		3317	$map->width (50);
		3318	$map->height (50);
		3319	$map->alloc;
		3320	$map->_load_objects ("/tmp/x.map", 1);
		3321	my $t = Event::time - $t;
		3322
		3323	#next unless $t < 0.0013;#d#
		3324	if ($t < $min) {
		3325	$min = $t;
		3326	}
		3327	$avg = $avg * 0.99 + $t * 0.01;
		3328	}
		3329	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3330	exit 0;
		3331	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2161	}	3332	};
2162		3333
		3334	$RUNTIME += $TICK;
2163	$NEXT_TICK += $TICK;	3335	$NEXT_TICK += $TICK;
2164		3336
		3337	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3338	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3339	Coro::async_pool {
		3340	write_runtime
		3341	or warn "ERROR: unable to write runtime file: $!";
		3342	};
		3343	}
		3344
		3345	# my $AFTER = Event::time;
		3346	# warn $AFTER - $NOW;#d#
		3347
		3348	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3349	$sig->send;
		3350	}
		3351	while (my $sig = shift @WAIT_FOR_TICK) {
		3352	$sig->send;
		3353	}
		3354
		3355	$NOW = Event::time;
		3356
2165	# if we are delayed by four ticks or more, skip them all	3357	# if we are delayed by four ticks or more, skip them all
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3358	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2167		3359
2168	$TICK_WATCHER->at ($NEXT_TICK);	3360	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;	3361	$TICK_WATCHER->start;
		3362
		3363	$LOAD = ($NOW - $tick_start) / $TICK;
		3364	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3365
		3366	_post_tick;
		3367
		3368
2170	},	3369	},
2171	);	3370	);
2172		3371
		3372	{
2173	IO::AIO::max_poll_time $TICK * 0.2;	3373	BDB::max_poll_time $TICK * 0.1;
2174		3374	$BDB_POLL_WATCHER = Event->io (
2175	Event->io (	3375	reentrant => 0,
2176	fd => IO::AIO::poll_fileno,	3376	fd => BDB::poll_fileno,
2177	poll => 'r',	3377	poll => 'r',
2178	prio => 5,	3378	prio => 0,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,	3379	data => WF_AUTOCANCEL,
2185	after => 0,	3380	cb => \&BDB::poll_cb,
2186	interval => 10,	3381	);
2187	cb => sub {	3382	BDB::min_parallel 8;
2188	(Coro::unblock_sub {	3383
2189	write_runtime	3384	BDB::set_sync_prepare {
2190	or warn "ERROR: unable to write runtime file: $!";	3385	my $status;
		3386	my $current = $Coro::current;
		3387	(
		3388	sub {
		3389	$status = $!;
		3390	$current->ready; undef $current;
		3391	},
		3392	sub {
		3393	Coro::schedule while defined $current;
		3394	$! = $status;
		3395	},
		3396	)
		3397	};
		3398
		3399	unless ($DB_ENV) {
		3400	$DB_ENV = BDB::db_env_create;
		3401
		3402	cf::sync_job {
		3403	eval {
		3404	BDB::db_env_open
		3405	$DB_ENV,
		3406	$BDBDIR,
		3407	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3408	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3409	0666;
		3410
		3411	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3412
		3413	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3414	$DB_ENV->set_lk_detect;
		3415	};
		3416
		3417	cf::cleanup "db_env_open(db): $@" if $@;
2191	})->();	3418	};
2192	},	3419	}
2193	);	3420	}
		3421
		3422	{
		3423	IO::AIO::min_parallel 8;
		3424
		3425	undef $Coro::AIO::WATCHER;
		3426	IO::AIO::max_poll_time $TICK * 0.1;
		3427	$AIO_POLL_WATCHER = Event->io (
		3428	reentrant => 0,
		3429	data => WF_AUTOCANCEL,
		3430	fd => IO::AIO::poll_fileno,
		3431	poll => 'r',
		3432	prio => 6,
		3433	cb => \&IO::AIO::poll_cb,
		3434	);
		3435	}
		3436
		3437	my $_log_backtrace;
		3438
		3439	sub _log_backtrace {
		3440	my ($msg, @addr) = @_;
		3441
		3442	$msg =~ s/\n//;
		3443
		3444	# limit the # of concurrent backtraces
		3445	if ($_log_backtrace < 2) {
		3446	++$_log_backtrace;
		3447	async {
		3448	my @bt = fork_call {
		3449	@addr = map { sprintf "%x", $_ } @addr;
		3450	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3451	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3452	or die "addr2line: $!";
		3453
		3454	my @funcs;
		3455	my @res = <$fh>;
		3456	chomp for @res;
		3457	while (@res) {
		3458	my ($func, $line) = splice @res, 0, 2, ();
		3459	push @funcs, "[$func] $line";
		3460	}
		3461
		3462	@funcs
		3463	};
		3464
		3465	LOG llevInfo, "[ABT] $msg\n";
		3466	LOG llevInfo, "[ABT] $_\n" for @bt;
		3467	--$_log_backtrace;
		3468	};
		3469	} else {
		3470	LOG llevInfo, "[ABT] $msg\n";
		3471	LOG llevInfo, "[ABT] [suppressed]\n";
		3472	}
		3473	}
		3474
		3475	# load additional modules
		3476	use cf::pod;
		3477
		3478	END { cf::emergency_save }
2194		3479
2195	1	3480	1
2196		3481

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