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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.316 by root, Mon Jul 23 21:02:50 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
77		118
78	#############################################################################	119	#############################################################################
79		120
80	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
81		122
…		…
88	=item $cf::RUNTIME	129	=item $cf::RUNTIME
89		130
90	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
91	every server tick.	132	every server tick.
92		133
93	=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
94		137
95	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		142
98	=item $cf::NOW	143	=item $cf::NOW
99		144
100	The time of the last (current) server tick.	145	The time of the last (current) server tick.
101		146
102	=item $cf::TICK	147	=item $cf::TICK
103		148
104	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.
105		160
106	=item %cf::CFG	161	=item %cf::CFG
107		162
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		177
111	=back	178	=back
112		179
113	=cut	180	=cut
114		181
115	BEGIN {	182	BEGIN {
116	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	184	my $msg = join "", @_;
118	utf8::encode $msg;
119		185
120	$msg .= "\n"	186	$msg .= "\n"
121	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
122		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
124	};	193	};
125	}	194	}
126		195
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		203
134	# 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
135	# within the Safe compartment.	205	# within the Safe compartment.
136	for my $pkg (qw(	206	for my $pkg (qw(
137	cf::global cf::attachable	207	cf::global cf::attachable
…		…
146		216
147	$Event::DIED = sub {	217	$Event::DIED = sub {
148	warn "error in event callback: @_";	218	warn "error in event callback: @_";
149	};	219	};
150		220
151	my %ext_pkg;	221	#############################################################################
152	my @exts;
153	my @hook;
154		222
155	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
156		224
157	=over 4	225	=over 4
158		226
159	=cut	227	=item dumpval $ref
160		228
161	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	}
162		249
163	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
164		251
165	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
166		253
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
175		255
176	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
177		257
178	=cut	258	=cut
179		259
180	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		261
185	=item my $guard = cf::guard { BLOCK }	262	sub to_json ($) { $json_coder->encode ($_[0]) }
186		263	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		264
207	=item cf::lock_wait $string	265	=item cf::lock_wait $string
208		266
209	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
210		268
211	=item my $lock = cf::lock_acquire $string	269	=item my $lock = cf::lock_acquire $string
212		270
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
216	returned.	274	returned.
217		275
218	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
219	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.
220		282
221	=cut	283	=cut
222		284
223	our %LOCK;	285	our %LOCK;
224		286
…		…
238	# wait, to be sure we are not locked	300	# wait, to be sure we are not locked
239	lock_wait $key;	301	lock_wait $key;
240		302
241	$LOCK{$key} = [];	303	$LOCK{$key} = [];
242		304
243	cf::guard {	305	Coro::guard {
244	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
246	}	308	}
247	}	309	}
248		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
249	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
250		384
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	385	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	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.
253		388
254	=cut	389	=cut
255		390
256	sub async(&) {	391	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		392
265	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
266		394
267	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)
268	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
269	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.
270		399
271	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
272	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
273	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
274	fast or be very important.	403	fast or be very important.
…		…
277		406
278	sub sync_job(&) {	407	sub sync_job(&) {
279	my ($job) = @_;	408	my ($job) = @_;
280		409
281	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
282	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
284		415
285	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	417	# (but this is cancel-safe)
287	local $FREEZE = 1;	418	my $freeze_guard = freeze_mainloop;
288		419
289	my $busy = 1;	420	my $busy = 1;
290	my @res;	421	my @res;
291		422
292	(Coro::async {	423	(async {
293	@res = eval { $job->() };	424	@res = eval { $job->() };
294	warn $@ if $@;	425	warn $@ if $@;
295	undef $busy;	426	undef $busy;
296	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
297		428
298	while ($busy) {	429	while ($busy) {
299	Coro::cede_notself;	430	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	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
302		439
303	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
304	} else {	441	} else {
305	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
306		443
307	$job->()	444	$job->()
308	}	445	}
309	}	446	}
310		447
311	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
312		449
313	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
315		452
316	=cut	453	=cut
317		454
318	sub coro(&) {	455	sub async_ext(&) {
319	my $cb = shift;	456	my $cb = shift;
320		457
321	my $coro = &cf::async ($cb);	458	my $coro = &Coro::async ($cb);
322		459
323	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
325	});	462	});
326	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
327		464
328	$coro	465	$coro
329	}	466	}
330		467
331	sub write_runtime {	468	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		469
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
335	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.
336		474
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		476
341	aio_fsync $fh	477	sub _store_scalar {
342	and return;	478	open my $fh, ">", \my $buf
343		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
344	close $fh	481	close $fh;
345	or return;
346		482
347	aio_rename "$runtime~", $runtime	483	$buf
348	and return;	484	}
349		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;
350	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 => $type });
351	}	655	}
352		656
353	=back	657	=back
354		658
355	=cut	659	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		660
477	#############################################################################	661	#############################################################################
478		662
479	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
480		664
…		…
482	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")
483	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
484		668
485	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>
486	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
487	crossfire+).	671	Crossfire TRT).
488		672
489	=over 4	673	=over 4
490		674
491	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
492		676
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	791	our @CB_MAP = ();
608		792
609	my %attachment;	793	my %attachment;
610		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
611	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
613		803
614	use sort 'stable';	804	use sort 'stable';
615		805
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
650		840
651	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		845
656	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	847	my $pkg = shift @arg;
658		848
659	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
689	}	879	}
690		880
691	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
692	} else {	882	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	884	}
695		885
696	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
697	}	887	}
698		888
…		…
700	if (ref $_[0]) {	890	if (ref $_[0]) {
701	_object_attach @_;	891	_object_attach @_;
702	} else {	892	} else {
703	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
704	}	894	}
		895	_recalc_want;
705	};	896	};
706		897
707	# all those should be optimised	898	# all those should be optimised
708	sub cf::attachable::detach {	899	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
713	reattach ($obj);	904	reattach ($obj);
714	} else {	905	} else {
715	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
716	}	907	}
		908	_recalc_want;
717	};	909	};
718		910
719	sub cf::attachable::attached {	911	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
721		913
…		…
736	";	928	";
737	die if $@;	929	die if $@;
738	}	930	}
739		931
740	our $override;	932	our $override;
741	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?
742		934
743	sub override {	935	sub override {
744	$override = 1;	936	$override = 1;
745	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
746	}	938	}
747		939
748	sub do_invoke {	940	sub do_invoke {
749	my $event = shift;	941	my $event = shift;
750	my $callbacks = shift;	942	my $callbacks = shift;
751		943
752	@invoke_results = ();	944	@INVOKE_RESULTS = ();
753		945
754	local $override;	946	local $override;
755		947
756	for (@$callbacks) {	948	for (@$callbacks) {
757	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
774		966
775	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
776		968
777	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
778	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
779	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		972
781	=back	973	=back
782		974
783	=cut	975	=cut
784		976
785	#############################################################################	977	#############################################################################
786	# 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	}
787		990
788	sub reattach {	991	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		996
792	my $registry = $obj->registry;	997	my $registry = $obj->registry;
793		998
794	@$registry = ();	999	@$registry = ();
795		1000
…		…
842	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
843		1048
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1053	close $fh;
849		1054
850	if (@$objs) {	1055	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1061	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
858	}	1063	}
859	} else {	1064	} else {
860	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
892	or return;	1097	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1099	}
895		1100
896	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1103	return ($data, $av);
899	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
900		1111
901	#############################################################################	1112	#############################################################################
902	# command handling &c	1113	# command handling &c
903		1114
904	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1129	}
919		1130
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1132
922	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.
923		1138
924	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
925	called.	1140	called.
926		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
927	=cut	1153	=cut
928		1154
929	sub register_extcmd {	1155	sub register_extcmd {
930	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
931		1157
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
936	}	1165	}
937		1166
938	cf::player->attach (	1167	cf::player->attach (
939	on_command => sub {	1168	on_command => sub {
940	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1178	cf::override;
950	},	1179	},
951	on_extcmd => sub {	1180	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
953		1182
954	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1184
956	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
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
959	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
960	}	1195	if $reply;
961	}	1196	}
962	} else {	1197	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1199	}
965		1200
966	cf::override;	1201	cf::override;
967	},	1202	},
968	);	1203	);
969		1204
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	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($) {
977	my ($path) = @_;	1573	my ($path) = @_;
978		1574
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1575	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1576
985	warn "loading '$path' into '$pkg'\n";	1577	for my $region (list) {
986		1578	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1579	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1580	if $region->specificity > $specificity;
989		1581	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1582	}
1019		1583
1020	# remove commands	1584	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1585	}
1126		1586
1127	=back	1587	=back
1128
1129		1588
1130	=head3 cf::map	1589	=head3 cf::map
1131		1590
1132	=over 4	1591	=over 4
1133		1592
…		…
1136	package cf::map;	1595	package cf::map;
1137		1596
1138	use Fcntl;	1597	use Fcntl;
1139	use Coro::AIO;	1598	use Coro::AIO;
1140		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1141	our $MAX_RESET = 7200;	1604	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1605	our $DEFAULT_RESET = 3000;
1143		1606
1144	sub generate_random_map {	1607	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1610	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1750	}
1162		1751
1163	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1164	# all maps in C++...	1753	# all maps in C++...
1165	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1167		1756
1168	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1170	}	1759	}
1171		1760
		1761	sub decay_objects {
		1762	my ($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
1172	sub try_load_header($) {	1777	sub load_header_from($) {
1173	my ($path) = @_;	1778	my ($self, $path) = @_;
1174		1779
1175	utf8::encode $path;	1780	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1177	or return;	1785	or return;
1178		1786
1179	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
1180	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1181		1833
1182	$map->load_header ($path)	1834	$self->{deny_reset} = 1
1183	or return;	1835	if $self->no_reset;
1184		1836
1185	$map->{load_path} = $path;	1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
1186		1839
1187	$map	1840	1
1188	}	1841	}
1189		1842
1190	sub find_map;	1843	sub find;
1191	sub find_map {	1844	sub find {
1192	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1193		1846
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1848
1199	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1200		1850
1201	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1203		1853	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1854	or return;
1221		1855
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1234		1857
1235	if ($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;
1236	$map->reset;	1864	$map->reset;
1237	undef $guard;	1865	undef $guard;
1238	$map = find_map $path	1866	return find $path;
1239	or return;
1240	}	1867	}
1241		1868
1242	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1243	}	1870	}
1244	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1245		1875
1246	sub load {	1876	sub load {
1247	my ($self) = @_;	1877	my ($self) = @_;
1248		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1249	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1251		1885
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1887
1254	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1255		1889
1256	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1257	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1896	or return;
1259		1897
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1899	if delete $self->{load_original};
1262		1900
1263	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1902	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1904	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1268	}	1906	}
1269	}	1907	}
1270		1908
		1909	Coro::cede;
1271	# now do the right thing for maps	1910	# now do the right thing for maps
1272	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1283	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;
1284	$self->activate;	1923	$self->activate;
1285	}	1924	}
1286		1925
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1926	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1927	}
1289		1928
1290	sub load_map_sync {	1929	$self->post_load;
		1930	}
		1931
		1932	sub customise_for {
		1933	my ($self, $ob) = @_;
		1934
		1935	return find "~" . $ob->name . "/" . $self->{path}
		1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
		1941	$self
		1942	}
		1943
		1944	# find and load all maps in the 3x3 area around a map
		1945	sub load_diag {
		1946	my ($map) = @_;
		1947
		1948	my @diag; # diagonal neighbours
		1949
		1950	for (0 .. 3) {
		1951	my $neigh = $map->tile_path ($_)
		1952	or next;
		1953	$neigh = find $neigh, $map
		1954	or next;
		1955	$neigh->load;
		1956
		1957	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1958	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1959	}
		1960
		1961	for (@diag) {
		1962	my $neigh = find @$_
		1963	or next;
		1964	$neigh->load;
		1965	}
		1966	}
		1967
		1968	sub find_sync {
1291	my ($path, $origin) = @_;	1969	my ($path, $origin) = @_;
1292		1970
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1971	cf::sync_job { find $path, $origin }
		1972	}
1294		1973
1295	cf::sync_job {	1974	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1975	my ($map) = @_;
1297	or return;	1976
		1977	cf::sync_job { $map->load };
		1978	}
		1979
		1980	our %MAP_PREFETCH;
		1981	our $MAP_PREFETCHER = undef;
		1982
		1983	sub find_async {
		1984	my ($path, $origin) = @_;
		1985
		1986	$path = normalise $path, $origin && $origin->{path};
		1987
		1988	if (my $map = $cf::MAP{$path}) {
		1989	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1990	}
		1991
		1992	undef $MAP_PREFETCH{$path};
		1993	$MAP_PREFETCHER ||= cf::async {
		1994	while (%MAP_PREFETCH) {
		1995	for my $path (keys %MAP_PREFETCH) {
		1996	if (my $map = find $path) {
1298	$map->load;	1997	$map->load;
1299	$map	1998	}
		1999
		2000	delete $MAP_PREFETCH{$path};
		2001	}
		2002	}
		2003	undef $MAP_PREFETCHER;
1300	}	2004	};
		2005	$MAP_PREFETCHER->prio (6);
		2006
		2007	()
1301	}	2008	}
1302		2009
1303	sub save {	2010	sub save {
1304	my ($self) = @_;	2011	my ($self) = @_;
1305		2012
		2013	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2014
1306	$self->{last_save} = $cf::RUNTIME;	2015	$self->{last_save} = $cf::RUNTIME;
1307		2016
1308	return unless $self->dirty;	2017	return unless $self->dirty;
1309		2018
1310	my $save = $self->{path}->save_path; utf8::encode $save;	2019	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		2021
1313	$self->{load_path} = $save;	2022	$self->{load_path} = $save;
1314		2023
1315	return if $self->{deny_save};	2024	return if $self->{deny_save};
1316		2025
1317	local $self->{last_access} = $self->last_access;#d#	2026	local $self->{last_access} = $self->last_access;#d#
1318		2027
		2028	cf::async {
		2029	$_->contr->save for $self->players;
		2030	};
		2031
1319	if ($uniq) {	2032	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2033	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	2034	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	2035	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	2037	}
1325	}	2038	}
1326		2039
1327	sub swap_out {	2040	sub swap_out {
1328	my ($self) = @_;	2041	my ($self) = @_;
1329		2042
1330	# save first because save cedes	2043	# save first because save cedes
1331	$self->save;	2044	$self->save;
		2045
		2046	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		2047
1333	return if $self->players;	2048	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	2049	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	2050	return if $self->{deny_save};
1336		2051
…		…
1340		2055
1341	sub reset_at {	2056	sub reset_at {
1342	my ($self) = @_;	2057	my ($self) = @_;
1343		2058
1344	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1347		2061
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		2064
…		…
1355	my ($self) = @_;	2069	my ($self) = @_;
1356		2070
1357	$self->reset_at <= $cf::RUNTIME	2071	$self->reset_at <= $cf::RUNTIME
1358	}	2072	}
1359		2073
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	2074	sub reset {
1382	my ($self) = @_;	2075	my ($self) = @_;
1383		2076
		2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2078
1384	return if $self->players;	2079	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		2080
1387	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
1388		2092
1389	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
		2094
		2095	$self->clear;
1390		2096
1391	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1392		2098
1393	$self->unlink_save;	2099	$self->unlink_save;
1394	$self->destroy;	2100	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	2103	my $nuke_counter = "aaaa";
1398		2104
1399	sub nuke {	2105	sub nuke {
1400	my ($self) = @_;	2106	my ($self) = @_;
1401		2107
		2108	delete $cf::MAP{$self->path};
		2109
		2110	$self->unlink_save;
		2111
		2112	bless $self, "cf::map";
		2113	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	2114	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	2115	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	2116	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2117
		2118	$cf::MAP{$self->path} = $self;
		2119
1405	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1406	}	2121	}
1407		2122
1408	sub customise_for {	2123	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2124
1411	if ($map->per_player) {	2125	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
1413	}	2131	[
1414		2132	map {
1415	$map	2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
1416	}	2139	}
1417		2140
1418	sub emergency_save {	2141	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2142
1421	warn "enter emergency map save\n";	2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
1422		2145
1423	cf::sync_job {	2146	=cut
1424	warn "begin emergency map save\n";
1425	$_->save for values %cf::MAP;
1426	};
1427		2147
1428	warn "end emergency map save\n";	2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
		2159	=item cf::map::unique_maps
		2160
		2161	Returns an arrayref of paths of all shared maps that have
		2162	instantiated unique items. May block.
		2163
		2164	=cut
		2165
		2166	sub unique_maps() {
		2167	[
		2168	map {
		2169	utf8::decode $_;
		2170	/\.map$/
		2171	? normalise $_
		2172	: ()
		2173	} @{ aio_readdir $UNIQUEDIR or [] }
		2174	]
1429	}	2175	}
1430		2176
1431	package cf;	2177	package cf;
1432		2178
1433	=back	2179	=back
1434		2180
		2181	=head3 cf::object
		2182
		2183	=cut
		2184
		2185	package cf::object;
		2186
		2187	=over 4
		2188
		2189	=item $ob->inv_recursive
		2190
		2191	Returns the inventory of the object _and_ their inventories, recursively.
		2192
		2193	=cut
		2194
		2195	sub inv_recursive_;
		2196	sub inv_recursive_ {
		2197	map { $_, inv_recursive_ $_->inv } @_
		2198	}
		2199
		2200	sub inv_recursive {
		2201	inv_recursive_ inv $_[0]
		2202	}
		2203
		2204	package cf;
		2205
		2206	=back
1435		2207
1436	=head3 cf::object::player	2208	=head3 cf::object::player
1437		2209
1438	=over 4	2210	=over 4
1439		2211
…		…
1453		2225
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2227
1456	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1458	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1461	}	2242	}
1462	}	2243	}
1463		2244
1464	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1465		2246
…		…
1479		2260
1480	=item $player_object->enter_link	2261	=item $player_object->enter_link
1481		2262
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2263	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2264
1484	The player should be reaosnably safe there for short amounts of time. You	2265	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	2266	I<MUST> call C<leave_link> as soon as possible, though.
1486		2267
		2268	Will never block.
		2269
1487	=item $player_object->leave_link ($map, $x, $y)	2270	=item $player_object->leave_link ($map, $x, $y)
1488		2271
1489	Moves the player out of the specila link map onto the given map. If the	2272	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2273	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2274	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2275	fails, to the emergency map position.
1493		2276
1494	Might block.	2277	Might block.
1495		2278
1496	=cut	2279	=cut
		2280
		2281	sub link_map {
		2282	unless ($LINK_MAP) {
		2283	$LINK_MAP = cf::map::find "{link}"
		2284	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2285	$LINK_MAP->load;
		2286	}
		2287
		2288	$LINK_MAP
		2289	}
1497		2290
1498	sub cf::object::player::enter_link {	2291	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2292	my ($self) = @_;
1500		2293
1501	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1502		2295
1503	return if $self->map == $LINK_MAP;	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2297
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1507		2300
1508	$self->enter_map ($LINK_MAP, 20, 20);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	2302	}
1510		2303
1511	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1513		2308
1514	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1515		2310
1516	unless ($map) {	2311	unless ($map) {
1517	# restore original map position	2312	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2313	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2314	$map = cf::map::find $map;
1520		2315
1521	unless ($map) {	2316	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2317	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2318	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2319	or die "FATAL: cannot load emergency map\n";
1525	}	2320	}
1526	}	2321	}
1527		2322
1528	($x, $y) = (-1, -1)	2323	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	2326	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2327	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2328	if $x <=0 && $y <= 0;
1534		2329
1535	$map->load;	2330	$map->load;
		2331	$map->load_diag;
1536		2332
		2333	return unless $self->contr->active;
1537	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1539	}	2338	}
1540		2339
1541	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1542	on_logout => sub {
1543	my ($pl) = @_;
1544		2341
1545	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1546	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1547	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1548	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1549	};	2346	be called at the end of this process.
1550	}
1551	},
1552	on_login => sub {
1553	my ($pl) = @_;
1554		2347
1555	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568
1569	=item $player_object->goto_map ($path, $x, $y)
1570
1571	=cut	2348	=cut
1572		2349
		2350	our $GOTOGEN;
		2351
1573	sub cf::object::player::goto_map {	2352	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2357
1576	$self->enter_link;	2358	$self->enter_link;
1577		2359
1578	(cf::async {	2360	(async {
1579	$path = new cf::path $path;	2361	my $map = eval {
1580
1581	my $map = cf::map::find_map $path->as_string;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
1583		2366	$map = $check->($map) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2367	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
1588		2370
		2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
		2377	}
		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1590	})->prio (1);	2385	})->prio (1);
1591	}	2386	}
1592		2387
1593	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1594		2389
…		…
1596		2391
1597	sub parse_random_map_params {	2392	sub parse_random_map_params {
1598	my ($spec) = @_;	2393	my ($spec) = @_;
1599		2394
1600	my $rmp = { # defaults	2395	my $rmp = { # defaults
1601	xsize => 10,	2396	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2397	ysize => (cf::rndm 15, 40),
		2398	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2399	#layout => string,
1603	};	2400	};
1604		2401
1605	for (split /\n/, $spec) {	2402	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2403	my ($k, $v) = split /\s+/, $_, 2;
1607		2404
…		…
1611	$rmp	2408	$rmp
1612	}	2409	}
1613		2410
1614	sub prepare_random_map {	2411	sub prepare_random_map {
1615	my ($exit) = @_;	2412	my ($exit) = @_;
		2413
		2414	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		2415
1617	# all this does is basically replace the /! path by	2416	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	2417	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	2418	# that depends on the exit object
1620		2419
1621	my $rmp = parse_random_map_params $exit->msg;	2420	my $rmp = parse_random_map_params $exit->msg;
1622		2421
1623	if ($exit->map) {	2422	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2423	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2424	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2425	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2426	$rmp->{origin_y} = $exit->y;
1628	}	2427	}
1629		2428
1630	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1631		2430
1632	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
		2433	my $meta = "$RANDOMDIR/$md5.meta";
1634		2434
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
		2437	undef $fh;
		2438	aio_rename "$meta~", $meta;
1637		2439
1638	$exit->slaying ("?random/$md5");	2440	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2441	$exit->msg (undef);
1640	}	2442	}
1641	}	2443	}
…		…
1643	sub cf::object::player::enter_exit {	2445	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2446	my ($self, $exit) = @_;
1645		2447
1646	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1647		2449
		2450	if ($exit->slaying eq "/!") {
		2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
		2454	cf::sync_job { prepare_random_map $exit };
		2455	}
		2456
		2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2458	my $hp = $exit->stats->hp;
		2459	my $sp = $exit->stats->sp;
		2460
1648	$self->enter_link;	2461	$self->enter_link;
1649		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
		2466
1650	(cf::async {	2467	(async {
		2468	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2469	unless (eval {
1652	prepare_random_map $exit	2470	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2471
1658	1;	2472	1;
1659	}) {	2473	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2475	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2476	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2478
1665	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2480	$self->leave_link;
1667	}	2481	}
1668	})->prio (1);	2482	})->prio (1);
…		…
1681		2495
1682	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1684		2498
1685	utf8::encode $text;	2499	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2501	}
1688		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => %$channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
1689		2573
1690	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
1691		2575
1692	Queues a query to the client, calling the given callback with	2576	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2579
1696	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2581	become reliable at some point in the future.
1698		2582
1699	=cut	2583	=cut
1700		2584
1701	sub cf::client::query {	2585	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2594	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2596
1713	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
1715	}	2601	}
1716		2602
1717	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
1718	on_reply => sub {	2609	on_reply => sub {
1719	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
1720		2611
1721	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
1722	# get handled first	2613	# get handled first
1723	my $queue = delete $ns->{query_queue}	2614	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2615	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2616
1726	(shift @$queue)->[1]->($msg);	2617	(shift @$queue)->[1]->($msg);
		2618	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2619
1728	push @{ $ns->{query_queue} }, @$queue;	2620	push @{ $ns->{query_queue} }, @$queue;
1729		2621
1730	if (@{ $ns->{query_queue} } == @$queue) {	2622	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2623	if (@$queue) {
…		…
1733	} else {	2625	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2627	}
1736	}	2628	}
1737	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
1738	);	2653	);
1739		2654
1740	=item $client->coro (\&cb)	2655	=item $client->async (\&cb)
1741		2656
1742	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2658	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2659	or loss of connection).
1745		2660
1746	=cut	2661	=cut
1747		2662
1748	sub cf::client::coro {	2663	sub cf::client::async {
1749	my ($self, $cb) = @_;	2664	my ($self, $cb) = @_;
1750		2665
1751	my $coro = &cf::async ($cb);	2666	my $coro = &Coro::async ($cb);
1752		2667
1753	$coro->on_destroy (sub {	2668	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2669	delete $self->{_coro}{$coro+0};
1755	});	2670	});
1756		2671
…		…
1789		2704
1790	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
1791		2706
1792	=pod	2707	=pod
1793		2708
1794	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
1795		2710
1796	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
1797	cf::object::player player	2715	cf::object::player
1798	cf::player peaceful	2716	player
1799	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
1800		2723
1801	=cut	2724	=cut
1802		2725
1803	for (	2726	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
1805	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
1808	) {	2732	) {
1809	no strict 'refs';	2733	no strict 'refs';
…		…
1880	=back	2804	=back
1881		2805
1882	=cut	2806	=cut
1883		2807
1884	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
1885		2810
1886	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
1887		2813
1888	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
1889	currently store anything that can be serialised using Storable, which
1890	excludes objects.
1891		2815
1892	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
1893	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
1894		2819
1895	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
1896		2821
1897	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
1898		2824
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key
1904
1905	Returns a single value from the database
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
1935		2827
1936	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937		2834
1938	sub db_save() {	2835	cf::cede_to_tick;
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});
1958
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {
1965	@_ >= 2
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969
1970	sub db_put($$;$) {
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	2836	}
1984	);
1985	}
1986		2837
1987	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	while (my ($name, $info) = each %$res) {
		2871	my $meta = $enc->encode ({
		2872	name => $name,
		2873	type => $info->{type},
		2874	copyright => $info->{copyright}, #TODO#
		2875	});
		2876
		2877	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2878
		2879	if ($name =~ /\.jpg$/) {
		2880	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2881	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2882	} else {
		2883	my $data = pack "(w/a*)*", $meta, $info->{data};
		2884	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2885
		2886	cf::face::set_type $idx, 1;
		2887	cf::face::set_data $idx, 0, $data, $chk;
		2888	}
		2889
		2890	cf::cede_to_tick;
		2891	}
		2892	}
		2893
		2894	1
		2895	}
		2896
		2897	sub reload_regions {
		2898	load_resource_file "$MAPDIR/regions"
		2899	or die "unable to load regions file\n";
		2900
		2901	for (cf::region::list) {
		2902	$_->{match} = qr/$_->{match}/
		2903	if exists $_->{match};
		2904	}
		2905	}
		2906
		2907	sub reload_facedata {
		2908	load_facedata "$DATADIR/facedata"
		2909	or die "unable to load facedata\n";
		2910	}
		2911
		2912	sub reload_archetypes {
		2913	load_resource_file "$DATADIR/archetypes"
		2914	or die "unable to load archetypes\n";
		2915	#d# NEED to laod twice to resolve forward references
		2916	# this really needs to be done in an extra post-pass
		2917	# (which needs to be synchronous, so solve it differently)
		2918	load_resource_file "$DATADIR/archetypes"
		2919	or die "unable to load archetypes\n";
		2920	}
		2921
		2922	sub reload_treasures {
		2923	load_resource_file "$DATADIR/treasures"
		2924	or die "unable to load treasurelists\n";
		2925	}
		2926
		2927	sub reload_resources {
		2928	warn "reloading resource files...\n";
		2929
		2930	reload_regions;
		2931	reload_facedata;
		2932	#reload_archetypes;#d#
		2933	reload_archetypes;
		2934	reload_treasures;
		2935
		2936	warn "finished reloading resource files\n";
		2937	}
		2938
		2939	sub init {
		2940	reload_resources;
		2941	}
1989		2942
1990	sub cfg_load {	2943	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2944	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2945	or return;
1993		2946
1994	local $/;	2947	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2948	*CFG = YAML::Syck::Load <$fh>;
1996		2949
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2950	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		2951
		2952	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2953	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2954
1999	if (exists $CFG{mlockall}) {	2955	if (exists $CFG{mlockall}) {
2000	eval {	2956	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2957	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2958	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2959	};
2004	warn $@ if $@;	2960	warn $@ if $@;
2005	}	2961	}
2006	}	2962	}
2007		2963
2008	sub main {	2964	sub main {
2009	# we must not ever block the main coroutine	2965	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2966	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2967	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2968	(async {
2013	Event::one_event;	2969	Event::one_event;
2014	})->();	2970	})->prio (Coro::PRIO_MAX);
2015	};	2971	};
2016		2972
2017	cfg_load;	2973	cfg_load;
2018	db_load;	2974	db_init;
2019	load_extensions;	2975	load_extensions;
		2976
		2977	$TICK_WATCHER->start;
2020	Event::loop;	2978	Event::loop;
2021	}	2979	}
2022		2980
2023	#############################################################################	2981	#############################################################################
2024	# initialisation	2982	# initialisation and cleanup
2025		2983
		2984	# install some emergency cleanup handlers
		2985	BEGIN {
		2986	for my $signal (qw(INT HUP TERM)) {
		2987	Event->signal (
		2988	reentrant => 0,
		2989	data => WF_AUTOCANCEL,
		2990	signal => $signal,
		2991	prio => 0,
		2992	cb => sub {
		2993	cf::cleanup "SIG$signal";
		2994	},
		2995	);
		2996	}
		2997	}
		2998
		2999	sub write_runtime {
		3000	my $runtime = "$LOCALDIR/runtime";
		3001
		3002	# first touch the runtime file to show we are still running:
		3003	# the fsync below can take a very very long time.
		3004
		3005	IO::AIO::aio_utime $runtime, undef, undef;
		3006
		3007	my $guard = cf::lock_acquire "write_runtime";
		3008
		3009	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3010	or return;
		3011
		3012	my $value = $cf::RUNTIME + 90 + 10;
		3013	# 10 is the runtime save interval, for a monotonic clock
		3014	# 60 allows for the watchdog to kill the server.
		3015
		3016	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3017	and return;
		3018
		3019	# always fsync - this file is important
		3020	aio_fsync $fh
		3021	and return;
		3022
		3023	# touch it again to show we are up-to-date
		3024	aio_utime $fh, undef, undef;
		3025
		3026	close $fh
		3027	or return;
		3028
		3029	aio_rename "$runtime~", $runtime
		3030	and return;
		3031
		3032	warn "runtime file written.\n";
		3033
		3034	1
		3035	}
		3036
		3037	sub emergency_save() {
		3038	my $freeze_guard = cf::freeze_mainloop;
		3039
		3040	warn "enter emergency perl save\n";
		3041
		3042	cf::sync_job {
		3043	# use a peculiar iteration method to avoid tripping on perl
		3044	# refcount bugs in for. also avoids problems with players
		3045	# and maps saved/destroyed asynchronously.
		3046	warn "begin emergency player save\n";
		3047	for my $login (keys %cf::PLAYER) {
		3048	my $pl = $cf::PLAYER{$login} or next;
		3049	$pl->valid or next;
		3050	$pl->save;
		3051	}
		3052	warn "end emergency player save\n";
		3053
		3054	warn "begin emergency map save\n";
		3055	for my $path (keys %cf::MAP) {
		3056	my $map = $cf::MAP{$path} or next;
		3057	$map->valid or next;
		3058	$map->save;
		3059	}
		3060	warn "end emergency map save\n";
		3061
		3062	warn "begin emergency database checkpoint\n";
		3063	BDB::db_env_txn_checkpoint $DB_ENV;
		3064	warn "end emergency database checkpoint\n";
		3065	};
		3066
		3067	warn "leave emergency perl save\n";
		3068	}
		3069
		3070	sub post_cleanup {
		3071	my ($make_core) = @_;
		3072
		3073	warn Carp::longmess "post_cleanup backtrace"
		3074	if $make_core;
		3075	}
		3076
2026	sub reload() {	3077	sub do_reload_perl() {
2027	# can/must only be called in main	3078	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	3079	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	3080	warn "can only reload from main coroutine";
2030	return;	3081	return;
2031	}	3082	}
2032		3083
2033	warn "reloading...";	3084	warn "reloading...";
2034		3085
2035	local $FREEZE = 1;	3086	warn "entering sync_job";
		3087
		3088	cf::sync_job {
		3089	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	3090	cf::emergency_save;
		3091	cf::write_runtime; # external watchdog should not bark
2037		3092
2038	eval {	3093	warn "syncing database to disk";
		3094	BDB::db_env_txn_checkpoint $DB_ENV;
		3095
2039	# if anything goes wrong in here, we should simply crash as we already saved	3096	# if anything goes wrong in here, we should simply crash as we already saved
2040		3097
2041	# cancel all watchers	3098	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	3099	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	3100	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	3101	}
2045		3102
		3103	warn "flushing outstanding aio requests";
		3104	for (;;) {
		3105	BDB::flush;
		3106	IO::AIO::flush;
		3107	Coro::cede;
		3108	last unless IO::AIO::nreqs || BDB::nreqs;
		3109	warn "iterate...";
		3110	}
		3111
		3112	++$RELOAD;
		3113
2046	# cancel all extension coros	3114	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	3115	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	3116	%EXT_CORO = ();
2049		3117
2050	# unload all extensions	3118	warn "removing commands";
2051	for (@exts) {	3119	%COMMAND = ();
		3120
		3121	warn "removing ext/exti commands";
		3122	%EXTCMD = ();
		3123	%EXTICMD = ();
		3124
		3125	warn "unloading/nuking all extensions";
		3126	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	3127	warn "... unloading $pkg";
2053	unload_extension $_;	3128
		3129	if (my $cb = $pkg->can ("unload")) {
		3130	eval {
		3131	$cb->($pkg);
		3132	1
		3133	} or warn "$pkg unloaded, but with errors: $@";
2054	}	3134	}
2055		3135
		3136	warn "... nuking $pkg";
		3137	Symbol::delete_package $pkg;
		3138	}
		3139
2056	# unload all modules loaded from $LIBDIR	3140	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	3141	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3142	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		3143
2060	warn "removing <$k>";	3144	warn "... unloading $k";
2061	delete $INC{$k};	3145	delete $INC{$k};
2062		3146
2063	$k =~ s/\.pm$//;	3147	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	3148	$k =~ s/\//::/g;
2065		3149
…		…
2068	}	3152	}
2069		3153
2070	Symbol::delete_package $k;	3154	Symbol::delete_package $k;
2071	}	3155	}
2072		3156
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	3157	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	3158	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3159	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		3160
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	3161	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	3162	delete $INC{"cf.pm"};
		3163	delete $INC{"cf/pod.pm"};
2086		3164
2087	# don't, removes xs symbols, too,	3165	# don't, removes xs symbols, too,
2088	# and global variables created in xs	3166	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	3167	#Symbol::delete_package __PACKAGE__;
2090		3168
2091	# reload cf.pm	3169	warn "unload completed, starting to reload now";
		3170
2092	warn "reloading cf.pm";	3171	warn "reloading cf.pm";
2093	require cf;	3172	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3173	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		3174
2096	# load config and database again	3175	warn "loading config and database again";
2097	cf::cfg_load;	3176	cf::cfg_load;
2098	cf::db_load;
2099		3177
2100	# load extensions
2101	warn "load extensions";	3178	warn "loading extensions";
2102	cf::load_extensions;	3179	cf::load_extensions;
2103		3180
2104	# reattach attachments to objects	3181	warn "reattaching attachments to objects/players";
2105	warn "reattach";	3182	_global_reattach; # objects, sockets
2106	_global_reattach;	3183	warn "reattaching attachments to maps";
2107	};	3184	reattach $_ for values %MAP;
		3185	warn "reattaching attachments to players";
		3186	reattach $_ for values %PLAYER;
2108		3187
2109	if ($@) {	3188	warn "leaving sync_job";
		3189
		3190	1
		3191	} or do {
2110	warn $@;	3192	warn $@;
2111	warn "error while reloading, exiting.";	3193	warn "error while reloading, exiting.";
2112	exit 1;	3194	exit 1;
2113	}	3195	};
2114		3196
2115	warn "reloaded successfully";	3197	warn "reloaded";
2116	};	3198	};
2117		3199
2118	#############################################################################	3200	our $RELOAD_WATCHER; # used only during reload
2119		3201
2120	unless ($LINK_MAP) {	3202	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	3203	# doing reload synchronously and two reloads happen back-to-back,
		3204	# coro crashes during coro_state_free->destroy here.
2122		3205
2123	$LINK_MAP->width (41);	3206	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	3207	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	3208	after => 0,
		3209	data => WF_AUTOCANCEL,
2133	cb => sub {	3210	cb => sub {
2134	$_[0]->w->cancel;	3211	do_reload_perl;
2135		3212	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	3213	},
2154		3214	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	3215	}
2160
2161	register "<global>", __PACKAGE__;
2162		3216
2163	register_command "reload" => sub {	3217	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	3218	my ($who, $arg) = @_;
2165		3219
2166	if ($who->flag (FLAG_WIZ)) {	3220	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	3221	$who->message ("reloading server.");
		3222	async { reload_perl };
2170	}	3223	}
2171	};	3224	};
2172		3225
2173	unshift @INC, $LIBDIR;	3226	unshift @INC, $LIBDIR;
2174		3227
		3228	my $bug_warning = 0;
		3229
		3230	our @WAIT_FOR_TICK;
		3231	our @WAIT_FOR_TICK_BEGIN;
		3232
		3233	sub wait_for_tick {
		3234	return unless $TICK_WATCHER->is_active;
		3235	return if $Coro::current == $Coro::main;
		3236
		3237	my $signal = new Coro::Signal;
		3238	push @WAIT_FOR_TICK, $signal;
		3239	$signal->wait;
		3240	}
		3241
		3242	sub wait_for_tick_begin {
		3243	return unless $TICK_WATCHER->is_active;
		3244	return if $Coro::current == $Coro::main;
		3245
		3246	my $signal = new Coro::Signal;
		3247	push @WAIT_FOR_TICK_BEGIN, $signal;
		3248	$signal->wait;
		3249	}
		3250
		3251	my $min = 1e6;#d#
		3252	my $avg = 10;
2175	$TICK_WATCHER = Event->timer (	3253	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	3254	reentrant => 0,
		3255	parked => 1,
2177	prio => 0,	3256	prio => 0,
2178	at => $NEXT_TICK || $TICK,	3257	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	3258	data => WF_AUTOCANCEL,
2180	cb => sub {	3259	cb => sub {
2181	unless ($FREEZE) {	3260	if ($Coro::current != $Coro::main) {
		3261	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3262	unless ++$bug_warning > 10;
		3263	return;
		3264	}
		3265
		3266	$NOW = $tick_start = Event::time;
		3267
2182	cf::server_tick; # one server iteration	3268	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;	3269
		3270	0 && sync_job {#d#
		3271	for(1..10) {
		3272	my $t = Event::time;
		3273	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3274	or die;
		3275
		3276	$map->width (50);
		3277	$map->height (50);
		3278	$map->alloc;
		3279	$map->_load_objects ("/tmp/x.map", 1);
		3280	my $t = Event::time - $t;
		3281
		3282	#next unless $t < 0.0013;#d#
		3283	if ($t < $min) {
		3284	$min = $t;
		3285	}
		3286	$avg = $avg * 0.99 + $t * 0.01;
		3287	}
		3288	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3289	exit 0;
		3290	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2184	}	3291	};
2185		3292
		3293	$RUNTIME += $TICK;
2186	$NEXT_TICK += $TICK;	3294	$NEXT_TICK += $TICK;
2187		3295
		3296	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3297	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3298	Coro::async_pool {
		3299	write_runtime
		3300	or warn "ERROR: unable to write runtime file: $!";
		3301	};
		3302	}
		3303
		3304	# my $AFTER = Event::time;
		3305	# warn $AFTER - $NOW;#d#
		3306
		3307	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3308	$sig->send;
		3309	}
		3310	while (my $sig = shift @WAIT_FOR_TICK) {
		3311	$sig->send;
		3312	}
		3313
		3314	$NOW = Event::time;
		3315
2188	# if we are delayed by four ticks or more, skip them all	3316	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3317	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2190		3318
2191	$TICK_WATCHER->at ($NEXT_TICK);	3319	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;	3320	$TICK_WATCHER->start;
		3321
		3322	$LOAD = ($NOW - $tick_start) / $TICK;
		3323	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3324
		3325	_post_tick;
		3326
		3327
2193	},	3328	},
2194	);	3329	);
2195		3330
		3331	{
2196	IO::AIO::max_poll_time $TICK * 0.2;	3332	BDB::max_poll_time $TICK * 0.1;
2197		3333	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	3334	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	3335	fd => BDB::poll_fileno,
2200	poll => 'r',	3336	poll => 'r',
2201	prio => 5,	3337	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	3338	data => WF_AUTOCANCEL,
2208	after => 0,	3339	cb => \&BDB::poll_cb,
2209	interval => 10,	3340	);
2210	cb => sub {	3341	BDB::min_parallel 8;
2211	(Coro::unblock_sub {	3342
2212	write_runtime	3343	BDB::set_sync_prepare {
2213	or warn "ERROR: unable to write runtime file: $!";	3344	my $status;
		3345	my $current = $Coro::current;
		3346	(
		3347	sub {
		3348	$status = $!;
		3349	$current->ready; undef $current;
		3350	},
		3351	sub {
		3352	Coro::schedule while defined $current;
		3353	$! = $status;
		3354	},
		3355	)
		3356	};
		3357
		3358	unless ($DB_ENV) {
		3359	$DB_ENV = BDB::db_env_create;
		3360
		3361	cf::sync_job {
		3362	eval {
		3363	BDB::db_env_open
		3364	$DB_ENV,
		3365	$BDBDIR,
		3366	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3367	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3368	0666;
		3369
		3370	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3371
		3372	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3373	$DB_ENV->set_lk_detect;
		3374	};
		3375
		3376	cf::cleanup "db_env_open(db): $@" if $@;
2214	})->();	3377	};
2215	},	3378	}
2216	);	3379	}
		3380
		3381	{
		3382	IO::AIO::min_parallel 8;
		3383
		3384	undef $Coro::AIO::WATCHER;
		3385	IO::AIO::max_poll_time $TICK * 0.1;
		3386	$AIO_POLL_WATCHER = Event->io (
		3387	reentrant => 0,
		3388	data => WF_AUTOCANCEL,
		3389	fd => IO::AIO::poll_fileno,
		3390	poll => 'r',
		3391	prio => 6,
		3392	cb => \&IO::AIO::poll_cb,
		3393	);
		3394	}
		3395
		3396	my $_log_backtrace;
		3397
		3398	sub _log_backtrace {
		3399	my ($msg, @addr) = @_;
		3400
		3401	$msg =~ s/\n//;
		3402
		3403	# limit the # of concurrent backtraces
		3404	if ($_log_backtrace < 2) {
		3405	++$_log_backtrace;
		3406	async {
		3407	my @bt = fork_call {
		3408	@addr = map { sprintf "%x", $_ } @addr;
		3409	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3410	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3411	or die "addr2line: $!";
		3412
		3413	my @funcs;
		3414	my @res = <$fh>;
		3415	chomp for @res;
		3416	while (@res) {
		3417	my ($func, $line) = splice @res, 0, 2, ();
		3418	push @funcs, "[$func] $line";
		3419	}
		3420
		3421	@funcs
		3422	};
		3423
		3424	LOG llevInfo, "[ABT] $msg\n";
		3425	LOG llevInfo, "[ABT] $_\n" for @bt;
		3426	--$_log_backtrace;
		3427	};
		3428	} else {
		3429	LOG llevInfo, "[ABT] $msg\n";
		3430	LOG llevInfo, "[ABT] [suppressed]\n";
		3431	}
		3432	}
		3433
		3434	# load additional modules
		3435	use cf::pod;
2217		3436
2218	END { cf::emergency_save }	3437	END { cf::emergency_save }
2219		3438
2220	1	3439	1
2221		3440

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