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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.326 by root, Tue Jul 31 17:33:15 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 $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	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
90	every server tick.	132	every server tick.
91		133
92	=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
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	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.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		177
110	=back	178	=back
111		179
112	=cut	180	=cut
113		181
114	BEGIN {	182	BEGIN {
115	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	184	my $msg = join "", @_;
117	utf8::encode $msg;
118		185
119	$msg .= "\n"	186	$msg .= "\n"
120	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
121		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
125		195
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		203
133	# 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
134	# within the Safe compartment.	205	# within the Safe compartment.
135	for my $pkg (qw(	206	for my $pkg (qw(
136	cf::global cf::attachable	207	cf::global cf::attachable
…		…
145		216
146	$Event::DIED = sub {	217	$Event::DIED = sub {
147	warn "error in event callback: @_";	218	warn "error in event callback: @_";
148	};	219	};
149		220
150	my %ext_pkg;	221	#############################################################################
151	my @exts;
152	my @hook;
153		222
154	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
155		224
156	=over 4	225	=over 4
157		226
158	=cut	227	=item dumpval $ref
159		228
160	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	}
161		249
162	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
163		251
164	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
165		253
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
174		255
175	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
176		257
177	=cut	258	=cut
178		259
179	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		261
184	=item my $guard = cf::guard { BLOCK }	262	sub to_json ($) { $json_coder->encode ($_[0]) }
185		263	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		264
206	=item cf::lock_wait $string	265	=item cf::lock_wait $string
207		266
208	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
209		268
210	=item my $lock = cf::lock_acquire $string	269	=item my $lock = cf::lock_acquire $string
211		270
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
215	returned.	274	returned.
216		275
217	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load 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.
219		282
220	=cut	283	=cut
221		284
222	our %LOCK;	285	our %LOCK;
223		286
…		…
237	# wait, to be sure we are not locked	300	# wait, to be sure we are not locked
238	lock_wait $key;	301	lock_wait $key;
239		302
240	$LOCK{$key} = [];	303	$LOCK{$key} = [];
241		304
242	cf::guard {	305	Coro::guard {
243	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
245	}	308	}
246	}	309	}
247		310
248	=item cf::async { BLOCK }	311	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	312	my ($key) = @_;
257		313
258	Coro::async {	314	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	315	}
263		316
264	sub freeze_mainloop {	317	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
266		319
267	my $guard = guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
268	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
269	$guard	324	$guard
270	}	325	}
271		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
		383	=item cf::async { BLOCK }
		384
		385	Currently the same as Coro::async_pool, meaning you cannot use
		386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		387	thing you are allowed to do is call C<prio> on it.
		388
		389	=cut
		390
		391	BEGIN { *async = \&Coro::async_pool }
		392
272	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
273		394
274	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)
275	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
276	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.
277		399
278	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
279	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
280	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
281	fast or be very important.	403	fast or be very important.
…		…
284		406
285	sub sync_job(&) {	407	sub sync_job(&) {
286	my ($job) = @_;	408	my ($job) = @_;
287		409
288	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
289	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
291		415
292	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	417	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	418	my $freeze_guard = freeze_mainloop;
295		419
296	my $busy = 1;	420	my $busy = 1;
297	my @res;	421	my @res;
298		422
299	(Coro::async {	423	(async {
300	@res = eval { $job->() };	424	@res = eval { $job->() };
301	warn $@ if $@;	425	warn $@ if $@;
302	undef $busy;	426	undef $busy;
303	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
304		428
305	while ($busy) {	429	while ($busy) {
306	Coro::cede_notself;	430	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	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
309		439
310	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
311	} else {	441	} else {
312	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
313		443
314	$job->()	444	$job->()
315	}	445	}
316	}	446	}
317		447
318	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
319		449
320	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
322		452
323	=cut	453	=cut
324		454
325	sub coro(&) {	455	sub async_ext(&) {
326	my $cb = shift;	456	my $cb = shift;
327		457
328	my $coro = &cf::async ($cb);	458	my $coro = &Coro::async ($cb);
329		459
330	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
332	});	462	});
333	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
334		464
335	$coro	465	$coro
336	}	466	}
337		467
338	sub write_runtime {	468	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		469
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
342	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.
343		474
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		476
348	aio_fsync $fh	477	sub _store_scalar {
349	and return;	478	open my $fh, ">", \my $buf
350		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
351	close $fh	481	close $fh;
352	or return;
353		482
354	aio_rename "$runtime~", $runtime	483	$buf
355	and return;	484	}
356		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;
357	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 => $type });
358	}	655	}
359		656
360	=back	657	=back
361		658
362	=cut	659	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		660
484	#############################################################################	661	#############################################################################
485		662
486	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
487		664
…		…
489	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")
490	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
491		668
492	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>
493	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
494	crossfire+).	671	Crossfire TRT).
495		672
496	=over 4	673	=over 4
497		674
498	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
499		676
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	791	our @CB_MAP = ();
615		792
616	my %attachment;	793	my %attachment;
617		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
618	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
620		803
621	use sort 'stable';	804	use sort 'stable';
622		805
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
657		840
658	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		845
663	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	847	my $pkg = shift @arg;
665		848
666	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
696	}	879	}
697		880
698	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
699	} else {	882	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	884	}
702		885
703	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
704	}	887	}
705		888
…		…
707	if (ref $_[0]) {	890	if (ref $_[0]) {
708	_object_attach @_;	891	_object_attach @_;
709	} else {	892	} else {
710	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
711	}	894	}
		895	_recalc_want;
712	};	896	};
713		897
714	# all those should be optimised	898	# all those should be optimised
715	sub cf::attachable::detach {	899	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
720	reattach ($obj);	904	reattach ($obj);
721	} else {	905	} else {
722	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
723	}	907	}
		908	_recalc_want;
724	};	909	};
725		910
726	sub cf::attachable::attached {	911	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
728		913
…		…
743	";	928	";
744	die if $@;	929	die if $@;
745	}	930	}
746		931
747	our $override;	932	our $override;
748	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?
749		934
750	sub override {	935	sub override {
751	$override = 1;	936	$override = 1;
752	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
753	}	938	}
754		939
755	sub do_invoke {	940	sub do_invoke {
756	my $event = shift;	941	my $event = shift;
757	my $callbacks = shift;	942	my $callbacks = shift;
758		943
759	@invoke_results = ();	944	@INVOKE_RESULTS = ();
760		945
761	local $override;	946	local $override;
762		947
763	for (@$callbacks) {	948	for (@$callbacks) {
764	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
781		966
782	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
783		968
784	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
785	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
786	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		972
788	=back	973	=back
789		974
790	=cut	975	=cut
791		976
792	#############################################################################	977	#############################################################################
793	# 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	}
794		990
795	sub reattach {	991	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		996
799	my $registry = $obj->registry;	997	my $registry = $obj->registry;
800		998
801	@$registry = ();	999	@$registry = ();
802		1000
…		…
849	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
850		1048
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1053	close $fh;
856		1054
857	if (@$objs) {	1055	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1061	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
865	}	1063	}
866	} else {	1064	} else {
867	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
899	or return;	1097	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1099	}
902		1100
903	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1103	return ($data, $av);
906	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
907		1111
908	#############################################################################	1112	#############################################################################
909	# command handling &c	1113	# command handling &c
910		1114
911	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1129	}
926		1130
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1132
929	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.
930		1138
931	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
932	called.	1140	called.
933		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
934	=cut	1153	=cut
935		1154
936	sub register_extcmd {	1155	sub register_extcmd {
937	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
938		1157
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
943	}	1165	}
944		1166
945	cf::player->attach (	1167	cf::player->attach (
946	on_command => sub {	1168	on_command => sub {
947	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1178	cf::override;
957	},	1179	},
958	on_extcmd => sub {	1180	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
960		1182
961	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1184
963	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
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
966	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
967	}	1195	if $reply;
968	}	1196	}
969	} else {	1197	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1199	}
972		1200
973	cf::override;	1201	cf::override;
974	},	1202	},
975	);	1203	);
976		1204
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	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($) {
984	my ($path) = @_;	1573	my ($path) = @_;
985		1574
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1575	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1576
992	warn "loading '$path' into '$pkg'\n";	1577	for my $region (list) {
993		1578	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1579	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1580	if $region->specificity > $specificity;
996		1581	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1582	}
1026		1583
1027	# remove commands	1584	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1585	}
1133		1586
1134	=back	1587	=back
1135
1136		1588
1137	=head3 cf::map	1589	=head3 cf::map
1138		1590
1139	=over 4	1591	=over 4
1140		1592
…		…
1143	package cf::map;	1595	package cf::map;
1144		1596
1145	use Fcntl;	1597	use Fcntl;
1146	use Coro::AIO;	1598	use Coro::AIO;
1147		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1148	our $MAX_RESET = 3600;	1604	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1605	our $DEFAULT_RESET = 3000;
1150		1606
1151	sub generate_random_map {	1607	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1610	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$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},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(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"
1168	}	1750	}
1169		1751
1170	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1171	# all maps in C++...	1753	# all maps in C++...
1172	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1174		1756
1175	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1177	}	1759	}
1178		1760
		1761	sub decay_objects {
		1762	my ($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
1179	sub try_load_header($) {	1777	sub load_header_from($) {
1180	my ($path) = @_;	1778	my ($self, $path) = @_;
1181		1779
1182	utf8::encode $path;	1780	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1184	or return;	1785	or return;
1185		1786
1186	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
1187	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1188		1833
1189	$map->load_header ($path)	1834	$self->{deny_reset} = 1
1190	or return;	1835	if $self->no_reset;
1191		1836
1192	$map->{load_path} = $path;	1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
1193		1839
1194	$map	1840	1
1195	}	1841	}
1196		1842
1197	sub find;	1843	sub find;
1198	sub find {	1844	sub find {
1199	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1200		1846
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1848
1206	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1207		1850
1208	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1210		1853	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1854	or return;
1228		1855
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1241		1857
1242	if ($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;
1243	$map->reset;	1864	$map->reset;
1244	undef $guard;	1865	undef $guard;
1245	$map = find $path	1866	return find $path;
1246	or return;
1247	}	1867	}
1248		1868
1249	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1250	}	1870	}
1251	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1252		1875
1253	sub load {	1876	sub load {
1254	my ($self) = @_;	1877	my ($self) = @_;
1255		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1256	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1258		1885
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1887
1261	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1262		1889
1263	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1264	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1896	or return;
1266		1897
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1899	if delete $self->{load_original};
1269		1900
1270	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1902	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1904	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1275	}	1906	}
1276	}	1907	}
1277		1908
		1909	Coro::cede;
1278	# now do the right thing for maps	1910	# now do the right thing for maps
1279	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1290	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;
1291	$self->activate;	1923	$self->activate;
1292	}	1924	}
1293		1925
		1926	$self->{last_save} = $cf::RUNTIME;
		1927	$self->last_access ($cf::RUNTIME);
		1928
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1929	$self->in_memory (cf::MAP_IN_MEMORY);
		1930	}
		1931
		1932	$self->post_load;
		1933	}
		1934
		1935	sub customise_for {
		1936	my ($self, $ob) = @_;
		1937
		1938	return find "~" . $ob->name . "/" . $self->{path}
		1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
		1943
		1944	$self
		1945	}
		1946
		1947	# find and load all maps in the 3x3 area around a map
		1948	sub load_diag {
		1949	my ($map) = @_;
		1950
		1951	my @diag; # diagonal neighbours
		1952
		1953	for (0 .. 3) {
		1954	my $neigh = $map->tile_path ($_)
		1955	or next;
		1956	$neigh = find $neigh, $map
		1957	or next;
		1958	$neigh->load;
		1959
		1960	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1961	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1962	}
		1963
		1964	for (@diag) {
		1965	my $neigh = find @$_
		1966	or next;
		1967	$neigh->load;
		1968	}
1295	}	1969	}
1296		1970
1297	sub find_sync {	1971	sub find_sync {
1298	my ($path, $origin) = @_;	1972	my ($path, $origin) = @_;
1299		1973
1300	cf::sync_job { cf::map::find $path, $origin }	1974	cf::sync_job { find $path, $origin }
1301	}	1975	}
1302		1976
1303	sub do_load_sync {	1977	sub do_load_sync {
1304	my ($map) = @_;	1978	my ($map) = @_;
1305		1979
1306	cf::sync_job { $map->load };	1980	cf::sync_job { $map->load };
1307	}	1981	}
1308		1982
		1983	our %MAP_PREFETCH;
		1984	our $MAP_PREFETCHER = undef;
		1985
		1986	sub find_async {
		1987	my ($path, $origin) = @_;
		1988
		1989	$path = normalise $path, $origin && $origin->{path};
		1990
		1991	if (my $map = $cf::MAP{$path}) {
		1992	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1993	}
		1994
		1995	undef $MAP_PREFETCH{$path};
		1996	$MAP_PREFETCHER ||= cf::async {
		1997	while (%MAP_PREFETCH) {
		1998	for my $path (keys %MAP_PREFETCH) {
		1999	if (my $map = find $path) {
		2000	$map->load;
		2001	}
		2002
		2003	delete $MAP_PREFETCH{$path};
		2004	}
		2005	}
		2006	undef $MAP_PREFETCHER;
		2007	};
		2008	$MAP_PREFETCHER->prio (6);
		2009
		2010	()
		2011	}
		2012
1309	sub save {	2013	sub save {
1310	my ($self) = @_;	2014	my ($self) = @_;
1311		2015
		2016	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2017
1312	$self->{last_save} = $cf::RUNTIME;	2018	$self->{last_save} = $cf::RUNTIME;
1313		2019
1314	return unless $self->dirty;	2020	return unless $self->dirty;
1315		2021
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2022	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2023	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2024
1319	$self->{load_path} = $save;	2025	$self->{load_path} = $save;
1320		2026
1321	return if $self->{deny_save};	2027	return if $self->{deny_save};
1322		2028
1323	local $self->{last_access} = $self->last_access;#d#	2029	local $self->{last_access} = $self->last_access;#d#
1324		2030
		2031	cf::async {
		2032	$_->contr->save for $self->players;
		2033	};
		2034
1325	if ($uniq) {	2035	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2037	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2038	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2039	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2040	}
1331	}	2041	}
1332		2042
1333	sub swap_out {	2043	sub swap_out {
1334	my ($self) = @_;	2044	my ($self) = @_;
1335		2045
1336	# save first because save cedes	2046	# save first because save cedes
1337	$self->save;	2047	$self->save;
		2048
		2049	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		2050
1339	return if $self->players;	2051	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2052	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	2053	return if $self->{deny_save};
1342		2054
…		…
1346		2058
1347	sub reset_at {	2059	sub reset_at {
1348	my ($self) = @_;	2060	my ($self) = @_;
1349		2061
1350	# TODO: safety, remove and allow resettable per-player maps	2062	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2063	return 1e99 if $self->{deny_reset};
1353		2064
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2067
…		…
1361	my ($self) = @_;	2072	my ($self) = @_;
1362		2073
1363	$self->reset_at <= $cf::RUNTIME	2074	$self->reset_at <= $cf::RUNTIME
1364	}	2075	}
1365		2076
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2077	sub reset {
1388	my ($self) = @_;	2078	my ($self) = @_;
1389		2079
		2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2081
1390	return if $self->players;	2082	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2083
1393	warn "resetting map ", $self->path;#d#	2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
1394		2095
1395	delete $cf::MAP{$self->path};	2096	delete $cf::MAP{$self->path};
		2097
		2098	$self->clear;
1396		2099
1397	$_->clear_links_to ($self) for values %cf::MAP;	2100	$_->clear_links_to ($self) for values %cf::MAP;
1398		2101
1399	$self->unlink_save;	2102	$self->unlink_save;
1400	$self->destroy;	2103	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	2106	my $nuke_counter = "aaaa";
1404		2107
1405	sub nuke {	2108	sub nuke {
1406	my ($self) = @_;	2109	my ($self) = @_;
1407		2110
		2111	delete $cf::MAP{$self->path};
		2112
		2113	$self->unlink_save;
		2114
		2115	bless $self, "cf::map";
		2116	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2117	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2118	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2119	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2120
		2121	$cf::MAP{$self->path} = $self;
		2122
1411	$self->reset; # polite request, might not happen	2123	$self->reset; # polite request, might not happen
1412	}	2124	}
1413		2125
1414	sub customise_for {	2126	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2127
1417	if ($map->per_player) {	2128	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
1419	}	2134	[
1420		2135	map {
1421	$map	2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
1422	}	2142	}
1423		2143
1424	sub emergency_save {	2144	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2145
1427	warn "enter emergency map save\n";	2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
1428		2148
1429	cf::sync_job {	2149	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2150
1434	warn "end emergency map save\n";	2151	sub random_maps() {
		2152	[
		2153	map {
		2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
		2161
		2162	=item cf::map::unique_maps
		2163
		2164	Returns an arrayref of paths of all shared maps that have
		2165	instantiated unique items. May block.
		2166
		2167	=cut
		2168
		2169	sub unique_maps() {
		2170	[
		2171	map {
		2172	utf8::decode $_;
		2173	/\.map$/
		2174	? normalise $_
		2175	: ()
		2176	} @{ aio_readdir $UNIQUEDIR or [] }
		2177	]
1435	}	2178	}
1436		2179
1437	package cf;	2180	package cf;
1438		2181
1439	=back	2182	=back
1440		2183
		2184	=head3 cf::object
		2185
		2186	=cut
		2187
		2188	package cf::object;
		2189
		2190	=over 4
		2191
		2192	=item $ob->inv_recursive
		2193
		2194	Returns the inventory of the object _and_ their inventories, recursively.
		2195
		2196	=cut
		2197
		2198	sub inv_recursive_;
		2199	sub inv_recursive_ {
		2200	map { $_, inv_recursive_ $_->inv } @_
		2201	}
		2202
		2203	sub inv_recursive {
		2204	inv_recursive_ inv $_[0]
		2205	}
		2206
		2207	package cf;
		2208
		2209	=back
1441		2210
1442	=head3 cf::object::player	2211	=head3 cf::object::player
1443		2212
1444	=over 4	2213	=over 4
1445		2214
…		…
1459		2228
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2230
1462	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
1464	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
1467	}	2245	}
1468	}	2246	}
1469		2247
1470	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1471		2249
…		…
1485		2263
1486	=item $player_object->enter_link	2264	=item $player_object->enter_link
1487		2265
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2266	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2267
1490	The player should be reaosnably safe there for short amounts of time. You	2268	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1492		2270
		2271	Will never block.
		2272
1493	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1494		2274
1495	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2278	fails, to the emergency map position.
1499		2279
1500	Might block.	2280	Might block.
1501		2281
1502	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
1503		2293
1504	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2295	my ($self) = @_;
1506		2296
1507	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1508		2298
1509	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2300
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1513		2303
1514	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2305	}
1516		2306
1517	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1519		2311
1520	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1521		2313
1522	unless ($map) {	2314	unless ($map) {
1523	# restore original map position	2315	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1540		2332
1541	$map->load;	2333	$map->load;
		2334	$map->load_diag;
1542		2335
		2336	return unless $self->contr->active;
1543	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1545	}	2341	}
1546		2342
1547	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2344
1551	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1555	};	2349	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2350
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2351	=cut
1578		2352
		2353	our $GOTOGEN;
		2354
1579	sub cf::object::player::goto_map {	2355	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2360
1582	$self->enter_link;	2361	$self->enter_link;
1583		2362
1584	(cf::async {	2363	(async {
1585	$path = new cf::path $path;	2364	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
1589		2369	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2370	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
1594		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1596	})->prio (1);	2388	})->prio (1);
1597	}	2389	}
1598		2390
1599	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1600		2392
…		…
1602		2394
1603	sub parse_random_map_params {	2395	sub parse_random_map_params {
1604	my ($spec) = @_;	2396	my ($spec) = @_;
1605		2397
1606	my $rmp = { # defaults	2398	my $rmp = { # defaults
1607	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1609	};	2403	};
1610		2404
1611	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1613		2407
…		…
1617	$rmp	2411	$rmp
1618	}	2412	}
1619		2413
1620	sub prepare_random_map {	2414	sub prepare_random_map {
1621	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2418
1623	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2421	# that depends on the exit object
1626		2422
1627	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1628		2424
1629	if ($exit->map) {	2425	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1634	}	2430	}
1635		2431
1636	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1637		2433
1638	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1640		2437
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
1643		2442
1644	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2444	$exit->msg (undef);
1646	}	2445	}
1647	}	2446	}
…		…
1649	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1651		2450
1652	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1653		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
1654	$self->enter_link;	2464	$self->enter_link;
1655		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
1656	(cf::async {	2470	(async {
1657	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2472	unless (eval {
1659	prepare_random_map $exit	2473	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2474
1665	1;	2475	1;
1666	}) {	2476	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2479	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2481
1672	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2483	$self->leave_link;
1674	}	2484	}
1675	})->prio (1);	2485	})->prio (1);
…		…
1688		2498
1689	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1691		2501
1692	utf8::encode $text;	2502	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2504	}
1695		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	if (0 && $msg =~ /\[/) {
		2556	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2557	} else {
		2558	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2559	$self->send_packet ("drawinfo $color $msg")
		2560	}
		2561	}
		2562	}
		2563	}
		2564
		2565	=item $client->ext_msg ($type, @msg)
		2566
		2567	Sends an ext event to the client.
		2568
		2569	=cut
		2570
		2571	sub cf::client::ext_msg($$@) {
		2572	my ($self, $type, @msg) = @_;
		2573
		2574	my $extcmd = $self->extcmd;
		2575
		2576	if ($extcmd == 2) {
		2577	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2578	} elsif ($extcmd == 1) { # TODO: remove
		2579	push @msg, msgtype => "event_$type";
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
		2582	}
1696		2583
1697	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
1698		2585
1699	Queues a query to the client, calling the given callback with	2586	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2587	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2589
1703	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2591	become reliable at some point in the future.
1705		2592
1706	=cut	2593	=cut
1707		2594
1708	sub cf::client::query {	2595	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2604	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2606
1720	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
1722	}	2611	}
1723		2612
1724	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
1725	on_reply => sub {	2619	on_reply => sub {
1726	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
1727		2621
1728	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
1729	# get handled first	2623	# get handled first
1730	my $queue = delete $ns->{query_queue}	2624	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2625	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2626
1733	(shift @$queue)->[1]->($msg);	2627	(shift @$queue)->[1]->($msg);
		2628	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2629
1735	push @{ $ns->{query_queue} }, @$queue;	2630	push @{ $ns->{query_queue} }, @$queue;
1736		2631
1737	if (@{ $ns->{query_queue} } == @$queue) {	2632	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2633	if (@$queue) {
…		…
1740	} else {	2635	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2637	}
1743	}	2638	}
1744	},	2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
		2662	},
1745	);	2663	);
1746		2664
1747	=item $client->coro (\&cb)	2665	=item $client->async (\&cb)
1748		2666
1749	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2668	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2669	or loss of connection).
1752		2670
1753	=cut	2671	=cut
1754		2672
1755	sub cf::client::coro {	2673	sub cf::client::async {
1756	my ($self, $cb) = @_;	2674	my ($self, $cb) = @_;
1757		2675
1758	my $coro = &cf::async ($cb);	2676	my $coro = &Coro::async ($cb);
1759		2677
1760	$coro->on_destroy (sub {	2678	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2679	delete $self->{_coro}{$coro+0};
1762	});	2680	});
1763		2681
…		…
1796		2714
1797	# here we export the classes and methods available to script code	2715	# here we export the classes and methods available to script code
1798		2716
1799	=pod	2717	=pod
1800		2718
1801	The following fucntions and emthods are available within a safe environment:	2719	The following functions and methods are available within a safe environment:
1802		2720
1803	cf::object contr pay_amount pay_player map	2721	cf::object
		2722	contr pay_amount pay_player map x y force_find force_add
		2723	insert remove
		2724
1804	cf::object::player player	2725	cf::object::player
1805	cf::player peaceful	2726	player
1806	cf::map trigger	2727
		2728	cf::player
		2729	peaceful
		2730
		2731	cf::map
		2732	trigger
1807		2733
1808	=cut	2734	=cut
1809		2735
1810	for (	2736	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	2737	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2738	insert remove)],
1812	["cf::object::player" => qw(player)],	2739	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	2740	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	2741	["cf::map" => qw(trigger)],
1815	) {	2742	) {
1816	no strict 'refs';	2743	no strict 'refs';
…		…
1887	=back	2814	=back
1888		2815
1889	=cut	2816	=cut
1890		2817
1891	#############################################################################	2818	#############################################################################
		2819	# the server's init and main functions
1892		2820
1893	=head2 EXTENSION DATABASE SUPPORT	2821	sub load_facedata($) {
		2822	my ($path) = @_;
1894		2823
1895	Crossfire maintains a very simple database for extension use. It can	2824	warn "loading facedata from $path\n";
1896	currently store anything that can be serialised using Storable, which
1897	excludes objects.
1898		2825
1899	The parameter C<$family> should best start with the name of the extension	2826	my $facedata;
1900	using it, it should be unique.	2827	0 < aio_load $path, $facedata
		2828	or die "$path: $!";
1901		2829
1902	=over 4	2830	$facedata = Coro::Storable::thaw $facedata;
1903		2831
1904	=item $hashref = cf::db_get $family	2832	$facedata->{version} == 2
		2833	or cf::cleanup "$path: version mismatch, cannot proceed.";
1905		2834
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key
1911
1912	Returns a single value from the database
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}	2835	{
		2836	my $faces = $facedata->{faceinfo};
1942		2837
1943	my $pid;	2838	while (my ($face, $info) = each %$faces) {
		2839	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2840	cf::face::set_visibility $idx, $info->{visibility};
		2841	cf::face::set_magicmap $idx, $info->{magicmap};
		2842	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2843	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1944		2844
1945	sub db_save() {	2845	cf::cede_to_tick;
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});
1965
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {
1972	@_ >= 2
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976
1977	sub db_put($$;$) {
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2846	}
1991	);
1992	}
1993		2847
1994	#############################################################################	2848	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	2849	next unless $info->{smooth};
		2850	my $idx = cf::face::find $face
		2851	or next;
		2852	if (my $smooth = cf::face::find $info->{smooth}) {
		2853	cf::face::set_smooth $idx, $smooth;
		2854	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2855	} else {
		2856	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2857	}
		2858
		2859	cf::cede_to_tick;
		2860	}
		2861	}
		2862
		2863	{
		2864	my $anims = $facedata->{animinfo};
		2865
		2866	while (my ($anim, $info) = each %$anims) {
		2867	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2868	cf::cede_to_tick;
		2869	}
		2870
		2871	cf::anim::invalidate_all; # d'oh
		2872	}
		2873
		2874	{
		2875	# TODO: for gcfclient pleasure, we should give resources
		2876	# that gcfclient doesn't grok a >10000 face index.
		2877	my $res = $facedata->{resource};
		2878	my $enc = JSON::XS->new->utf8->canonical;
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $meta = $enc->encode ({
		2884	name => $name,
		2885	%{ $info->{meta} || {} },
		2886	});
		2887
		2888	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2889
		2890	if ($info->{type} & 1) {
		2891	# prepend meta info
		2892
		2893	my $data = pack "(w/a*)*", $meta, $info->{data};
		2894	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2895
		2896	cf::face::set_data $idx, 0, $data, $chk;
		2897	} else {
		2898	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2899	}
		2900
		2901	cf::face::set_type $idx, $info->{type};
		2902
		2903	cf::cede_to_tick;
		2904	}
		2905
		2906	if ($soundconf) {
		2907	$soundconf = $enc->decode (delete $soundconf->{data});
		2908
		2909	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2910	my $sound = $soundconf->{compat}[$_]
		2911	or next;
		2912
		2913	my $face = cf::face::find "sound/$sound->[1]";
		2914	cf::sound::set $sound->[0] => $face;
		2915	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2916	}
		2917
		2918	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2919	my $face = cf::face::find "sound/$v";
		2920	cf::sound::set $k => $face;
		2921	}
		2922	}
		2923	}
		2924
		2925	1
		2926	}
		2927
		2928	register_exticmd fx_want => sub {
		2929	my ($ns, $want) = @_;
		2930
		2931	while (my ($k, $v) = each %$want) {
		2932	$ns->fx_want ($k, $v);
		2933	}
		2934	};
		2935
		2936	sub reload_regions {
		2937	load_resource_file "$MAPDIR/regions"
		2938	or die "unable to load regions file\n";
		2939
		2940	for (cf::region::list) {
		2941	$_->{match} = qr/$_->{match}/
		2942	if exists $_->{match};
		2943	}
		2944	}
		2945
		2946	sub reload_facedata {
		2947	load_facedata "$DATADIR/facedata"
		2948	or die "unable to load facedata\n";
		2949	}
		2950
		2951	sub reload_archetypes {
		2952	load_resource_file "$DATADIR/archetypes"
		2953	or die "unable to load archetypes\n";
		2954	#d# NEED to laod twice to resolve forward references
		2955	# this really needs to be done in an extra post-pass
		2956	# (which needs to be synchronous, so solve it differently)
		2957	load_resource_file "$DATADIR/archetypes"
		2958	or die "unable to load archetypes\n";
		2959	}
		2960
		2961	sub reload_treasures {
		2962	load_resource_file "$DATADIR/treasures"
		2963	or die "unable to load treasurelists\n";
		2964	}
		2965
		2966	sub reload_resources {
		2967	warn "reloading resource files...\n";
		2968
		2969	reload_regions;
		2970	reload_facedata;
		2971	#reload_archetypes;#d#
		2972	reload_archetypes;
		2973	reload_treasures;
		2974
		2975	warn "finished reloading resource files\n";
		2976	}
		2977
		2978	sub init {
		2979	reload_resources;
		2980	}
1996		2981
1997	sub cfg_load {	2982	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2983	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2984	or return;
2000		2985
2001	local $/;	2986	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2987	*CFG = YAML::Syck::Load <$fh>;
2003		2988
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2989	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2990
		2991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2993
2006	if (exists $CFG{mlockall}) {	2994	if (exists $CFG{mlockall}) {
2007	eval {	2995	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2996	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2997	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2998	};
2011	warn $@ if $@;	2999	warn $@ if $@;
2012	}	3000	}
2013	}	3001	}
2014		3002
2015	sub main {	3003	sub main {
2016	# we must not ever block the main coroutine	3004	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3005	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3007	(async {
2020	Event::one_event;	3008	Event::one_event;
2021	})->();	3009	})->prio (Coro::PRIO_MAX);
2022	};	3010	};
2023		3011
2024	cfg_load;	3012	cfg_load;
2025	db_load;	3013	db_init;
2026	load_extensions;	3014	load_extensions;
		3015
		3016	$TICK_WATCHER->start;
2027	Event::loop;	3017	Event::loop;
2028	}	3018	}
2029		3019
2030	#############################################################################	3020	#############################################################################
2031	# initialisation	3021	# initialisation and cleanup
2032		3022
		3023	# install some emergency cleanup handlers
		3024	BEGIN {
		3025	for my $signal (qw(INT HUP TERM)) {
		3026	Event->signal (
		3027	reentrant => 0,
		3028	data => WF_AUTOCANCEL,
		3029	signal => $signal,
		3030	prio => 0,
		3031	cb => sub {
		3032	cf::cleanup "SIG$signal";
		3033	},
		3034	);
		3035	}
		3036	}
		3037
		3038	sub write_runtime {
		3039	my $runtime = "$LOCALDIR/runtime";
		3040
		3041	# first touch the runtime file to show we are still running:
		3042	# the fsync below can take a very very long time.
		3043
		3044	IO::AIO::aio_utime $runtime, undef, undef;
		3045
		3046	my $guard = cf::lock_acquire "write_runtime";
		3047
		3048	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3049	or return;
		3050
		3051	my $value = $cf::RUNTIME + 90 + 10;
		3052	# 10 is the runtime save interval, for a monotonic clock
		3053	# 60 allows for the watchdog to kill the server.
		3054
		3055	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3056	and return;
		3057
		3058	# always fsync - this file is important
		3059	aio_fsync $fh
		3060	and return;
		3061
		3062	# touch it again to show we are up-to-date
		3063	aio_utime $fh, undef, undef;
		3064
		3065	close $fh
		3066	or return;
		3067
		3068	aio_rename "$runtime~", $runtime
		3069	and return;
		3070
		3071	warn "runtime file written.\n";
		3072
		3073	1
		3074	}
		3075
		3076	sub emergency_save() {
		3077	my $freeze_guard = cf::freeze_mainloop;
		3078
		3079	warn "enter emergency perl save\n";
		3080
		3081	cf::sync_job {
		3082	# use a peculiar iteration method to avoid tripping on perl
		3083	# refcount bugs in for. also avoids problems with players
		3084	# and maps saved/destroyed asynchronously.
		3085	warn "begin emergency player save\n";
		3086	for my $login (keys %cf::PLAYER) {
		3087	my $pl = $cf::PLAYER{$login} or next;
		3088	$pl->valid or next;
		3089	$pl->save;
		3090	}
		3091	warn "end emergency player save\n";
		3092
		3093	warn "begin emergency map save\n";
		3094	for my $path (keys %cf::MAP) {
		3095	my $map = $cf::MAP{$path} or next;
		3096	$map->valid or next;
		3097	$map->save;
		3098	}
		3099	warn "end emergency map save\n";
		3100
		3101	warn "begin emergency database checkpoint\n";
		3102	BDB::db_env_txn_checkpoint $DB_ENV;
		3103	warn "end emergency database checkpoint\n";
		3104	};
		3105
		3106	warn "leave emergency perl save\n";
		3107	}
		3108
		3109	sub post_cleanup {
		3110	my ($make_core) = @_;
		3111
		3112	warn Carp::longmess "post_cleanup backtrace"
		3113	if $make_core;
		3114	}
		3115
2033	sub reload() {	3116	sub do_reload_perl() {
2034	# can/must only be called in main	3117	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3118	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3119	warn "can only reload from main coroutine";
2037	return;	3120	return;
2038	}	3121	}
2039		3122
2040	warn "reloading...";	3123	warn "reloading...";
2041		3124
2042	my $guard = freeze_mainloop;	3125	warn "entering sync_job";
		3126
		3127	cf::sync_job {
		3128	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	3129	cf::emergency_save;
		3130	cf::write_runtime; # external watchdog should not bark
2044		3131
2045	eval {	3132	warn "syncing database to disk";
		3133	BDB::db_env_txn_checkpoint $DB_ENV;
		3134
2046	# if anything goes wrong in here, we should simply crash as we already saved	3135	# if anything goes wrong in here, we should simply crash as we already saved
2047		3136
2048	# cancel all watchers	3137	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	3138	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3139	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	3140	}
2052		3141
		3142	warn "flushing outstanding aio requests";
		3143	for (;;) {
		3144	BDB::flush;
		3145	IO::AIO::flush;
		3146	Coro::cede;
		3147	last unless IO::AIO::nreqs || BDB::nreqs;
		3148	warn "iterate...";
		3149	}
		3150
		3151	++$RELOAD;
		3152
2053	# cancel all extension coros	3153	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	3154	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3155	%EXT_CORO = ();
2056		3156
2057	# unload all extensions	3157	warn "removing commands";
2058	for (@exts) {	3158	%COMMAND = ();
		3159
		3160	warn "removing ext/exti commands";
		3161	%EXTCMD = ();
		3162	%EXTICMD = ();
		3163
		3164	warn "unloading/nuking all extensions";
		3165	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	3166	warn "... unloading $pkg";
2060	unload_extension $_;	3167
		3168	if (my $cb = $pkg->can ("unload")) {
		3169	eval {
		3170	$cb->($pkg);
		3171	1
		3172	} or warn "$pkg unloaded, but with errors: $@";
2061	}	3173	}
2062		3174
		3175	warn "... nuking $pkg";
		3176	Symbol::delete_package $pkg;
		3177	}
		3178
2063	# unload all modules loaded from $LIBDIR	3179	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	3180	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3181	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		3182
2067	warn "removing <$k>";	3183	warn "... unloading $k";
2068	delete $INC{$k};	3184	delete $INC{$k};
2069		3185
2070	$k =~ s/\.pm$//;	3186	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	3187	$k =~ s/\//::/g;
2072		3188
…		…
2075	}	3191	}
2076		3192
2077	Symbol::delete_package $k;	3193	Symbol::delete_package $k;
2078	}	3194	}
2079		3195
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3196	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3197	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3198	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3199
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3200	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3201	delete $INC{"cf.pm"};
		3202	delete $INC{"cf/pod.pm"};
2093		3203
2094	# don't, removes xs symbols, too,	3204	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3205	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3206	#Symbol::delete_package __PACKAGE__;
2097		3207
2098	# reload cf.pm	3208	warn "unload completed, starting to reload now";
		3209
2099	warn "reloading cf.pm";	3210	warn "reloading cf.pm";
2100	require cf;	3211	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3212	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3213
2103	# load config and database again	3214	warn "loading config and database again";
2104	cf::cfg_load;	3215	cf::cfg_load;
2105	cf::db_load;
2106		3216
2107	# load extensions
2108	warn "load extensions";	3217	warn "loading extensions";
2109	cf::load_extensions;	3218	cf::load_extensions;
2110		3219
2111	# reattach attachments to objects	3220	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3221	_global_reattach; # objects, sockets
2113	_global_reattach;	3222	warn "reattaching attachments to maps";
2114	};	3223	reattach $_ for values %MAP;
		3224	warn "reattaching attachments to players";
		3225	reattach $_ for values %PLAYER;
2115		3226
2116	if ($@) {	3227	warn "leaving sync_job";
		3228
		3229	1
		3230	} or do {
2117	warn $@;	3231	warn $@;
2118	warn "error while reloading, exiting.";	3232	warn "error while reloading, exiting.";
2119	exit 1;	3233	exit 1;
2120	}	3234	};
2121		3235
2122	warn "reloaded successfully";	3236	warn "reloaded";
2123	};	3237	};
2124		3238
2125	#############################################################################	3239	our $RELOAD_WATCHER; # used only during reload
2126		3240
2127	unless ($LINK_MAP) {	3241	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3242	# doing reload synchronously and two reloads happen back-to-back,
		3243	# coro crashes during coro_state_free->destroy here.
2129		3244
2130	$LINK_MAP->width (41);	3245	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3246	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	3247	after => 0,
		3248	data => WF_AUTOCANCEL,
2140	cb => sub {	3249	cb => sub {
2141	$_[0]->w->cancel;	3250	do_reload_perl;
2142		3251	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	3252	},
2161		3253	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3254	}
2167
2168	register "<global>", __PACKAGE__;
2169		3255
2170	register_command "reload" => sub {	3256	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3257	my ($who, $arg) = @_;
2172		3258
2173	if ($who->flag (FLAG_WIZ)) {	3259	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3260	$who->message ("reloading server.");
		3261	async { reload_perl };
2177	}	3262	}
2178	};	3263	};
2179		3264
2180	unshift @INC, $LIBDIR;	3265	unshift @INC, $LIBDIR;
2181		3266
		3267	my $bug_warning = 0;
		3268
		3269	our @WAIT_FOR_TICK;
		3270	our @WAIT_FOR_TICK_BEGIN;
		3271
		3272	sub wait_for_tick {
		3273	return unless $TICK_WATCHER->is_active;
		3274	return if $Coro::current == $Coro::main;
		3275
		3276	my $signal = new Coro::Signal;
		3277	push @WAIT_FOR_TICK, $signal;
		3278	$signal->wait;
		3279	}
		3280
		3281	sub wait_for_tick_begin {
		3282	return unless $TICK_WATCHER->is_active;
		3283	return if $Coro::current == $Coro::main;
		3284
		3285	my $signal = new Coro::Signal;
		3286	push @WAIT_FOR_TICK_BEGIN, $signal;
		3287	$signal->wait;
		3288	}
		3289
		3290	my $min = 1e6;#d#
		3291	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	3292	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3293	reentrant => 0,
		3294	parked => 1,
2184	prio => 0,	3295	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3296	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3297	data => WF_AUTOCANCEL,
2187	cb => sub {	3298	cb => sub {
		3299	if ($Coro::current != $Coro::main) {
		3300	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3301	unless ++$bug_warning > 10;
		3302	return;
		3303	}
		3304
		3305	$NOW = $tick_start = Event::time;
		3306
2188	cf::server_tick; # one server iteration	3307	cf::server_tick; # one server iteration
		3308
		3309	0 && sync_job {#d#
		3310	for(1..10) {
		3311	my $t = Event::time;
		3312	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3313	or die;
		3314
		3315	$map->width (50);
		3316	$map->height (50);
		3317	$map->alloc;
		3318	$map->_load_objects ("/tmp/x.map", 1);
		3319	my $t = Event::time - $t;
		3320
		3321	#next unless $t < 0.0013;#d#
		3322	if ($t < $min) {
		3323	$min = $t;
		3324	}
		3325	$avg = $avg * 0.99 + $t * 0.01;
		3326	}
		3327	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3328	exit 0;
		3329	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3330	};
		3331
2189	$RUNTIME += $TICK;	3332	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3333	$NEXT_TICK += $TICK;
2191		3334
		3335	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3336	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3337	Coro::async_pool {
		3338	write_runtime
		3339	or warn "ERROR: unable to write runtime file: $!";
		3340	};
		3341	}
		3342
		3343	# my $AFTER = Event::time;
		3344	# warn $AFTER - $NOW;#d#
		3345
		3346	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3347	$sig->send;
		3348	}
		3349	while (my $sig = shift @WAIT_FOR_TICK) {
		3350	$sig->send;
		3351	}
		3352
		3353	$NOW = Event::time;
		3354
2192	# if we are delayed by four ticks or more, skip them all	3355	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3356	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3357
2195	$TICK_WATCHER->at ($NEXT_TICK);	3358	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3359	$TICK_WATCHER->start;
		3360
		3361	$LOAD = ($NOW - $tick_start) / $TICK;
		3362	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3363
		3364	_post_tick;
		3365
		3366
2197	},	3367	},
2198	);	3368	);
2199		3369
		3370	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	3371	BDB::max_poll_time $TICK * 0.1;
2201		3372	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3373	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3374	fd => BDB::poll_fileno,
2204	poll => 'r',	3375	poll => 'r',
2205	prio => 5,	3376	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3377	data => WF_AUTOCANCEL,
2212	after => 0,	3378	cb => \&BDB::poll_cb,
2213	interval => 10,	3379	);
2214	cb => sub {	3380	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3381
2216	write_runtime	3382	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3383	my $status;
		3384	my $current = $Coro::current;
		3385	(
		3386	sub {
		3387	$status = $!;
		3388	$current->ready; undef $current;
		3389	},
		3390	sub {
		3391	Coro::schedule while defined $current;
		3392	$! = $status;
		3393	},
		3394	)
		3395	};
		3396
		3397	unless ($DB_ENV) {
		3398	$DB_ENV = BDB::db_env_create;
		3399
		3400	cf::sync_job {
		3401	eval {
		3402	BDB::db_env_open
		3403	$DB_ENV,
		3404	$BDBDIR,
		3405	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3406	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3407	0666;
		3408
		3409	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3410
		3411	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3412	$DB_ENV->set_lk_detect;
		3413	};
		3414
		3415	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3416	};
2219	},	3417	}
2220	);	3418	}
		3419
		3420	{
		3421	IO::AIO::min_parallel 8;
		3422
		3423	undef $Coro::AIO::WATCHER;
		3424	IO::AIO::max_poll_time $TICK * 0.1;
		3425	$AIO_POLL_WATCHER = Event->io (
		3426	reentrant => 0,
		3427	data => WF_AUTOCANCEL,
		3428	fd => IO::AIO::poll_fileno,
		3429	poll => 'r',
		3430	prio => 6,
		3431	cb => \&IO::AIO::poll_cb,
		3432	);
		3433	}
		3434
		3435	my $_log_backtrace;
		3436
		3437	sub _log_backtrace {
		3438	my ($msg, @addr) = @_;
		3439
		3440	$msg =~ s/\n//;
		3441
		3442	# limit the # of concurrent backtraces
		3443	if ($_log_backtrace < 2) {
		3444	++$_log_backtrace;
		3445	async {
		3446	my @bt = fork_call {
		3447	@addr = map { sprintf "%x", $_ } @addr;
		3448	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3449	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3450	or die "addr2line: $!";
		3451
		3452	my @funcs;
		3453	my @res = <$fh>;
		3454	chomp for @res;
		3455	while (@res) {
		3456	my ($func, $line) = splice @res, 0, 2, ();
		3457	push @funcs, "[$func] $line";
		3458	}
		3459
		3460	@funcs
		3461	};
		3462
		3463	LOG llevInfo, "[ABT] $msg\n";
		3464	LOG llevInfo, "[ABT] $_\n" for @bt;
		3465	--$_log_backtrace;
		3466	};
		3467	} else {
		3468	LOG llevInfo, "[ABT] $msg\n";
		3469	LOG llevInfo, "[ABT] [suppressed]\n";
		3470	}
		3471	}
		3472
		3473	# load additional modules
		3474	use cf::pod;
2221		3475
2222	END { cf::emergency_save }	3476	END { cf::emergency_save }
2223		3477
2224	1	3478	1
2225		3479

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