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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 1.304 by root, Wed Jul 11 16:55:18 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.
109		171
110	=back	172	=back
111		173
112	=cut	174	=cut
113		175
114	BEGIN {	176	BEGIN {
115	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	178	my $msg = join "", @_;
117	utf8::encode $msg;
118		179
119	$msg .= "\n"	180	$msg .= "\n"
120	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
121		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	186	LOG llevError, $msg;
123	};	187	};
124	}	188	}
125		189
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		197
133	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	199	# within the Safe compartment.
135	for my $pkg (qw(	200	for my $pkg (qw(
136	cf::global cf::attachable	201	cf::global cf::attachable
…		…
145		210
146	$Event::DIED = sub {	211	$Event::DIED = sub {
147	warn "error in event callback: @_";	212	warn "error in event callback: @_";
148	};	213	};
149		214
150	my %ext_pkg;	215	#############################################################################
151	my @exts;
152	my @hook;
153		216
154	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
155		218
156	=over 4	219	=over 4
157		220
158	=cut	221	=item dumpval $ref
159		222
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	223	=cut
		224
		225	sub dumpval {
		226	eval {
		227	local $SIG{__DIE__};
		228	my $d;
		229	if (1) {
		230	$d = new Data::Dumper([$_[0]], ["*var"]);
		231	$d->Terse(1);
		232	$d->Indent(2);
		233	$d->Quotekeys(0);
		234	$d->Useqq(1);
		235	#$d->Bless(...);
		236	$d->Seen($_[1]) if @_ > 1;
		237	$d = $d->Dump();
		238	}
		239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		240	$d
		241	} || "[unable to dump $_[0]: '$@']";
		242	}
161		243
162	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
163		245
164	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
165		247
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
174		249
175	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
176		251
177	=cut	252	=cut
178		253
179	sub to_json($) {	254	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		255
184	=item my $guard = cf::guard { BLOCK }	256	sub to_json ($) { $json_coder->encode ($_[0]) }
185		257	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		258
206	=item cf::lock_wait $string	259	=item cf::lock_wait $string
207		260
208	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
209		262
210	=item my $lock = cf::lock_acquire $string	263	=item my $lock = cf::lock_acquire $string
211		264
212	Wait until the given lock is available and then acquires it and returns	265	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,	266	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	267	for example when the coroutine gets canceled), the lock is automatically
215	returned.	268	returned.
216		269
217	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
219		276
220	=cut	277	=cut
221		278
222	our %LOCK;	279	our %LOCK;
223		280
…		…
237	# wait, to be sure we are not locked	294	# wait, to be sure we are not locked
238	lock_wait $key;	295	lock_wait $key;
239		296
240	$LOCK{$key} = [];	297	$LOCK{$key} = [];
241		298
242	cf::guard {	299	Coro::guard {
243	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
245	}	302	}
246	}	303	}
247		304
248	=item cf::async { BLOCK }	305	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) = @_;	306	my ($key) = @_;
257		307
258	Coro::async {	308	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	309	}
263		310
264	sub freeze_mainloop {	311	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
266		313
267	my $guard = guard { $TICK_WATCHER->start };	314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
268	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
269	$guard	318	$guard
270	}	319	}
271		320
		321	=item cf::async { BLOCK }
		322
		323	Currently the same as Coro::async_pool, meaning you cannot use
		324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
		326
		327	=cut
		328
		329	BEGIN { *async = \&Coro::async_pool }
		330
272	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
273		332
274	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
277		337
278	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
281	fast or be very important.	341	fast or be very important.
…		…
284		344
285	sub sync_job(&) {	345	sub sync_job(&) {
286	my ($job) = @_;	346	my ($job) = @_;
287		347
288	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
289	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
291		353
292	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	355	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	356	my $freeze_guard = freeze_mainloop;
295		357
296	my $busy = 1;	358	my $busy = 1;
297	my @res;	359	my @res;
298		360
299	(Coro::async {	361	(async {
300	@res = eval { $job->() };	362	@res = eval { $job->() };
301	warn $@ if $@;	363	warn $@ if $@;
302	undef $busy;	364	undef $busy;
303	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
304		366
305	while ($busy) {	367	while ($busy) {
306	Coro::cede_notself;	368	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	369	}
		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
309		377
310	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
311	} else {	379	} else {
312	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
313		381
314	$job->()	382	$job->()
315	}	383	}
316	}	384	}
317		385
318	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
319		387
320	Creates and returns a new coro. This coro is automcatially being canceled	388	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
322		390
323	=cut	391	=cut
324		392
325	sub coro(&) {	393	sub async_ext(&) {
326	my $cb = shift;	394	my $cb = shift;
327		395
328	my $coro = &cf::async ($cb);	396	my $coro = &Coro::async ($cb);
329		397
330	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
332	});	400	});
333	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
334		402
335	$coro	403	$coro
336	}	404	}
337		405
338	sub write_runtime {	406	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		407
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
342	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
343		412
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		414
348	aio_fsync $fh	415	sub _store_scalar {
349	and return;	416	open my $fh, ">", \my $buf
350		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
351	close $fh	419	close $fh;
352	or return;
353		420
354	aio_rename "$runtime~", $runtime	421	$buf
355	and return;	422	}
356		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
357	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	593	}
359		594
360	=back	595	=back
361		596
362	=cut	597	=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		598
484	#############################################################################	599	#############################################################################
485		600
486	=head2 ATTACHABLE OBJECTS	601	=head2 ATTACHABLE OBJECTS
487		602
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
491		606
492	In the following description, CLASS can be any of C<global>, C<object>	607	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	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	609	Crossfire TRT).
495		610
496	=over 4	611	=over 4
497		612
498	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
499		614
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	728	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	729	our @CB_MAP = ();
615		730
616	my %attachment;	731	my %attachment;
617		732
		733	sub cf::attachable::thawer_merge {
		734	# simply override everything except _meta
		735	local $_[0]{_meta};
		736	%{$_[0]} = %{$_[1]};
		737	}
		738
618	sub _attach_cb($$$$) {	739	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	740	my ($registry, $event, $prio, $cb) = @_;
620		741
621	use sort 'stable';	742	use sort 'stable';
622		743
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
657		778
658	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		783
663	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	785	my $pkg = shift @arg;
665		786
666	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
696	}	817	}
697		818
698	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
699	} else {	820	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	822	}
702		823
703	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
704	}	825	}
705		826
…		…
707	if (ref $_[0]) {	828	if (ref $_[0]) {
708	_object_attach @_;	829	_object_attach @_;
709	} else {	830	} else {
710	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
711	}	832	}
		833	_recalc_want;
712	};	834	};
713		835
714	# all those should be optimised	836	# all those should be optimised
715	sub cf::attachable::detach {	837	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
720	reattach ($obj);	842	reattach ($obj);
721	} else {	843	} else {
722	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
723	}	845	}
		846	_recalc_want;
724	};	847	};
725		848
726	sub cf::attachable::attached {	849	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
728		851
…		…
793	# object support	916	# object support
794		917
795	sub reattach {	918	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	919	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	920	my ($obj) = @_;
		921
		922	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		923
799	my $registry = $obj->registry;	924	my $registry = $obj->registry;
800		925
801	@$registry = ();	926	@$registry = ();
802		927
…		…
849	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
850		975
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	980	close $fh;
856		981
857	if (@$objs) {	982	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	983	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	988	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
865	}	990	}
866	} else {	991	} else {
867	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
899	or return;	1024	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1026	}
902		1027
903	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1030	return ($data, $av);
906	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
907		1038
908	#############################################################################	1039	#############################################################################
909	# command handling &c	1040	# command handling &c
910		1041
911	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1056	}
926		1057
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1059
929	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
930		1065
931	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
932	called.	1067	called.
933		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
934	=cut	1080	=cut
935		1081
936	sub register_extcmd {	1082	sub register_extcmd {
937	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
938		1084
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
943	}	1092	}
944		1093
945	cf::player->attach (	1094	cf::player->attach (
946	on_command => sub {	1095	on_command => sub {
947	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1105	cf::override;
957	},	1106	},
958	on_extcmd => sub {	1107	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
960		1109
961	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1111
963	if (ref $msg) {	1112	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	1116	}
968	}	1117	}
969	} else {	1118	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1119	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		1121
973	cf::override;	1122	cf::override;
974	},	1123	},
975	);	1124	);
976		1125
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
		1130	for my $path (<$LIBDIR/*.ext>) {
		1131	next unless -r $path;
		1132
		1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
		1190	}
		1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
		1196	};
		1197	}
		1198
		1199	#############################################################################
		1200
		1201	=back
		1202
		1203	=head2 CORE EXTENSIONS
		1204
		1205	Functions and methods that extend core crossfire objects.
		1206
		1207	=cut
		1208
		1209	package cf::player;
		1210
		1211	use Coro::AIO;
		1212
		1213	=head3 cf::player
		1214
		1215	=over 4
		1216
		1217	=item cf::player::find $login
		1218
		1219	Returns the given player object, loading it if necessary (might block).
		1220
		1221	=cut
		1222
		1223	sub playerdir($) {
		1224	"$PLAYERDIR/"
		1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1226	}
		1227
		1228	sub path($) {
		1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1230
		1231	(playerdir $login) . "/playerdata"
		1232	}
		1233
		1234	sub find_active($) {
		1235	$cf::PLAYER{$_[0]}
		1236	and $cf::PLAYER{$_[0]}->active
		1237	and $cf::PLAYER{$_[0]}
		1238	}
		1239
		1240	sub exists($) {
		1241	my ($login) = @_;
		1242
		1243	$cf::PLAYER{$login}
		1244	or cf::sync_job { !aio_stat path $login }
		1245	}
		1246
		1247	sub find($) {
		1248	return $cf::PLAYER{$_[0]} || do {
		1249	my $login = $_[0];
		1250
		1251	my $guard = cf::lock_acquire "user_find:$login";
		1252
		1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
		1261	my $pl = load_pl path $login
		1262	or return;
		1263	$cf::PLAYER{$login} = $pl
		1264	}
		1265	}
		1266	}
		1267
		1268	sub save($) {
		1269	my ($pl) = @_;
		1270
		1271	return if $pl->{deny_save};
		1272
		1273	my $path = path $pl;
		1274	my $guard = cf::lock_acquire "user_save:$path";
		1275
		1276	return if $pl->{deny_save};
		1277
		1278	aio_mkdir playerdir $pl, 0770;
		1279	$pl->{last_save} = $cf::RUNTIME;
		1280
		1281	$pl->save_pl ($path);
		1282	Coro::cede;
		1283	}
		1284
		1285	sub new($) {
		1286	my ($login) = @_;
		1287
		1288	my $self = create;
		1289
		1290	$self->ob->name ($login);
		1291	$self->{deny_save} = 1;
		1292
		1293	$cf::PLAYER{$login} = $self;
		1294
		1295	$self
		1296	}
		1297
		1298	=item $pl->quit_character
		1299
		1300	Nukes the player without looking back. If logged in, the connection will
		1301	be destroyed. May block for a long time.
		1302
		1303	=cut
		1304
		1305	sub quit_character {
		1306	my ($pl) = @_;
		1307
		1308	my $name = $pl->ob->name;
		1309
		1310	$pl->{deny_save} = 1;
		1311	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1312
		1313	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1314	$pl->deactivate;
		1315	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1316	$pl->ns->destroy if $pl->ns;
		1317
		1318	my $path = playerdir $pl;
		1319	my $temp = "$path~$cf::RUNTIME~deleting~";
		1320	aio_rename $path, $temp;
		1321	delete $cf::PLAYER{$pl->ob->name};
		1322	$pl->destroy;
		1323
		1324	my $prefix = qr<^~\Q$name\E/>;
		1325
		1326	# nuke player maps
		1327	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1328
		1329	IO::AIO::aio_rmtree $temp;
		1330	}
		1331
		1332	=item $pl->kick
		1333
		1334	Kicks a player out of the game. This destroys the connection.
		1335
		1336	=cut
		1337
		1338	sub kick {
		1339	my ($pl, $kicker) = @_;
		1340
		1341	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1342	$pl->killer ("kicked");
		1343	$pl->ns->destroy;
		1344	}
		1345
		1346	=item cf::player::list_logins
		1347
		1348	Returns am arrayref of all valid playernames in the system, can take a
		1349	while and may block, so not sync_job-capable, ever.
		1350
		1351	=cut
		1352
		1353	sub list_logins {
		1354	my $dirs = aio_readdir $PLAYERDIR
		1355	or return [];
		1356
		1357	my @logins;
		1358
		1359	for my $login (@$dirs) {
		1360	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1361	aio_read $fh, 0, 512, my $buf, 0 or next;
		1362	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1363
		1364	utf8::decode $login;
		1365	push @logins, $login;
		1366	}
		1367
		1368	\@logins
		1369	}
		1370
		1371	=item $player->maps
		1372
		1373	Returns an arrayref of map paths that are private for this
		1374	player. May block.
		1375
		1376	=cut
		1377
		1378	sub maps($) {
		1379	my ($pl) = @_;
		1380
		1381	$pl = ref $pl ? $pl->ob->name : $pl;
		1382
		1383	my $files = aio_readdir playerdir $pl
		1384	or return;
		1385
		1386	my @paths;
		1387
		1388	for (@$files) {
		1389	utf8::decode $_;
		1390	next if /\.(?:pl|pst)$/;
		1391	next unless /^$PATH_SEP/o;
		1392
		1393	push @paths, cf::map::normalise "~$pl/$_";
		1394	}
		1395
		1396	\@paths
		1397	}
		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
		1449	=item $player->ext_reply ($msgid, %msg)
		1450
		1451	Sends an ext reply to the player.
		1452
		1453	=cut
		1454
		1455	sub ext_reply($$%) {
		1456	my ($self, $id, %msg) = @_;
		1457
		1458	$msg{msgid} = $id;
		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1460	}
		1461
		1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
984	my ($path) = @_;	1489	my ($path) = @_;
985		1490
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1492
992	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
993		1494	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1496	if $region->specificity > $specificity;
996		1497	}
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	# }	1498	}
1026		1499
1027	# remove commands	1500	$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	}	1501	}
1133		1502
1134	=back	1503	=back
1135
1136		1504
1137	=head3 cf::map	1505	=head3 cf::map
1138		1506
1139	=over 4	1507	=over 4
1140		1508
…		…
1143	package cf::map;	1511	package cf::map;
1144		1512
1145	use Fcntl;	1513	use Fcntl;
1146	use Coro::AIO;	1514	use Coro::AIO;
1147		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1148	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1150		1522
1151	sub generate_random_map {	1523	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1526	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1168	}	1666	}
1169		1667
1170	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1171	# all maps in C++...	1669	# all maps in C++...
1172	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1174		1672
1175	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1177	}	1675	}
1178		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1179	sub try_load_header($) {	1693	sub load_header_from($) {
1180	my ($path) = @_;	1694	my ($self, $path) = @_;
1181		1695
1182	utf8::encode $path;	1696	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1184	or return;	1701	or return;
1185		1702
1186	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1187	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1188		1749
1189	$map->load_header ($path)	1750	$self->{deny_reset} = 1
1190	or return;	1751	if $self->no_reset;
1191		1752
1192	$map->{load_path} = $path;	1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
1193		1755
1194	$map	1756	1
1195	}	1757	}
1196		1758
1197	sub find;	1759	sub find;
1198	sub find {	1760	sub find {
1199	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1200		1762
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1764
1206	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1207		1766
1208	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1210		1769	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;	1770	or return;
1228		1771
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;	1772	$map->{last_save} = $cf::RUNTIME;
1241		1773
1242	if ($map->should_reset) {	1774	$map->load_header
		1775	or return;
		1776
		1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1780	$map->reset;
1244	undef $guard;	1781	undef $guard;
1245	$map = find $path	1782	return find $path;
1246	or return;
1247	}	1783	}
1248		1784
1249	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1250	}	1786	}
1251	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1252		1791
1253	sub load {	1792	sub load {
1254	my ($self) = @_;	1793	my ($self) = @_;
1255		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1256	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1258		1801
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1803
1261	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1262		1805
1263	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1264	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1812	or return;
1266		1813
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1815	if delete $self->{load_original};
1269		1816
1270	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1818	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1820	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1275	}	1822	}
1276	}	1823	}
1277		1824
		1825	Coro::cede;
1278	# now do the right thing for maps	1826	# now do the right thing for maps
1279	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1280
1281	if ($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)	1828	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1291	$self->activate;	1839	$self->activate;
1292	}	1840	}
1293		1841
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
1295	}	1882	}
1296		1883
1297	sub find_sync {	1884	sub find_sync {
1298	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1299		1886
1300	cf::sync_job { cf::map::find $path, $origin }	1887	cf::sync_job { find $path, $origin }
1301	}	1888	}
1302		1889
1303	sub do_load_sync {	1890	sub do_load_sync {
1304	my ($map) = @_;	1891	my ($map) = @_;
1305		1892
1306	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1307	}	1894	}
1308		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1309	sub save {	1926	sub save {
1310	my ($self) = @_;	1927	my ($self) = @_;
1311		1928
		1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1930
1312	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1313		1932
1314	return unless $self->dirty;	1933	return unless $self->dirty;
1315		1934
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1937
1319	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1320		1939
1321	return if $self->{deny_save};	1940	return if $self->{deny_save};
1322		1941
1323	local $self->{last_access} = $self->last_access;#d#	1942	local $self->{last_access} = $self->last_access;#d#
1324		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1325	if ($uniq) {	1948	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1951	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1953	}
1331	}	1954	}
1332		1955
1333	sub swap_out {	1956	sub swap_out {
1334	my ($self) = @_;	1957	my ($self) = @_;
1335		1958
1336	# save first because save cedes	1959	# save first because save cedes
1337	$self->save;	1960	$self->save;
		1961
		1962	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1963
1339	return if $self->players;	1964	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1965	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1966	return if $self->{deny_save};
1342		1967
…		…
1346		1971
1347	sub reset_at {	1972	sub reset_at {
1348	my ($self) = @_;	1973	my ($self) = @_;
1349		1974
1350	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1353		1977
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1980
…		…
1361	my ($self) = @_;	1985	my ($self) = @_;
1362		1986
1363	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1364	}	1988	}
1365		1989
1366	sub unlink_save {
1367	my ($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	$self->save;
1385	}
1386
1387	sub reset {	1990	sub reset {
1388	my ($self) = @_;	1991	my ($self) = @_;
1389		1992
		1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1994
1390	return if $self->players;	1995	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		1996
1393	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1394		2008
1395	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1396		2012
1397	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1398		2014
1399	$self->unlink_save;	2015	$self->unlink_save;
1400	$self->destroy;	2016	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1404		2020
1405	sub nuke {	2021	sub nuke {
1406	my ($self) = @_;	2022	my ($self) = @_;
1407		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1411	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1412	}	2037	}
1413		2038
1414	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2040
1417	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1419	}	2047	[
1420		2048	map {
1421	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1422	}	2055	}
1423		2056
1424	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2058
1427	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1428		2061
1429	cf::sync_job {	2062	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2063
1434	warn "end emergency map save\n";	2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
		2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1435	}	2091	}
1436		2092
1437	package cf;	2093	package cf;
1438		2094
1439	=back	2095	=back
1440		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1441		2123
1442	=head3 cf::object::player	2124	=head3 cf::object::player
1443		2125
1444	=over 4	2126	=over 4
1445		2127
…		…
1459		2141
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2143
1462	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1464	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1467	}	2163	}
1468	}	2164	}
1469		2165
1470	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1471		2167
…		…
1485		2181
1486	=item $player_object->enter_link	2182	=item $player_object->enter_link
1487		2183
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2185
1490	The player should be reaosnably safe there for short amounts of time. You	2186	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.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1492		2188
		2189	Will never block.
		2190
1493	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1494		2192
1495	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2196	fails, to the emergency map position.
1499		2197
1500	Might block.	2198	Might block.
1501		2199
1502	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1503		2211
1504	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2213	my ($self) = @_;
1506		2214
1507	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1508		2216
1509	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2218
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1513		2221
1514	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2223	}
1516		2224
1517	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1519		2229
1520	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1521		2231
1522	unless ($map) {	2232	unless ($map) {
1523	# restore original map position	2233	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1540		2250
1541	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1542		2253
		2254	return unless $self->contr->active;
1543	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1545	}	2259	}
1546		2260
1547	cf::player->attach (
1548	on_logout => sub {
1549	my ($pl) = @_;
1550
1551	# abort map switching before logout
1552	if ($pl->ob->{_link_pos}) {
1553	cf::sync_job {
1554	$pl->ob->leave_link
1555	};
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560
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)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1576		2262
1577	=cut	2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
1578		2267
		2268	=cut
		2269
		2270	our $GOTOGEN;
		2271
1579	sub cf::object::player::goto_map {	2272	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2277
1582	$self->enter_link;	2278	$self->enter_link;
1583		2279
1584	(cf::async {	2280	(async {
1585	$path = new cf::path $path;	2281	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1589		2286	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1594		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1596	})->prio (1);	2303	})->prio (1);
1597	}	2304	}
1598		2305
1599	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1600		2307
…		…
1602		2309
1603	sub parse_random_map_params {	2310	sub parse_random_map_params {
1604	my ($spec) = @_;	2311	my ($spec) = @_;
1605		2312
1606	my $rmp = { # defaults	2313	my $rmp = { # defaults
1607	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1609	};	2318	};
1610		2319
1611	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1613		2322
…		…
1617	$rmp	2326	$rmp
1618	}	2327	}
1619		2328
1620	sub prepare_random_map {	2329	sub prepare_random_map {
1621	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2333
1623	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2336	# that depends on the exit object
1626		2337
1627	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1628		2339
1629	if ($exit->map) {	2340	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1634	}	2345	}
1635		2346
1636	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1637		2348
1638	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1640		2352
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
		2355	undef $fh;
		2356	aio_rename "$meta~", $meta;
1643		2357
1644	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2359	$exit->msg (undef);
1646	}	2360	}
1647	}	2361	}
…		…
1649	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1651		2365
1652	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1653		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1654	$self->enter_link;	2379	$self->enter_link;
1655		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
1656	(cf::async {	2385	(async {
1657	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2387	unless (eval {
1659	prepare_random_map $exit	2388	$self->goto ($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		2389
1665	1;	2390	1;
1666	}) {	2391	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2396
1672	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2398	$self->leave_link;
1674	}	2399	}
1675	})->prio (1);	2400	})->prio (1);
…		…
1688		2413
1689	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1691		2416
1692	utf8::encode $text;	2417	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2419	}
1695		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1696		2473
1697	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1698		2475
1699	Queues a query to the client, calling the given callback with	2476	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>,	2477	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>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2479
1703	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2481	become reliable at some point in the future.
1705		2482
1706	=cut	2483	=cut
1707		2484
1708	sub cf::client::query {	2485	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2494	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2496
1720	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1722	}	2501	}
1723		2502
1724	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1725	on_reply => sub {	2509	on_reply => sub {
1726	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1727		2511
1728	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1729	# get handled first	2513	# get handled first
1730	my $queue = delete $ns->{query_queue}	2514	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2516
1733	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2519
1735	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1736		2521
1737	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2523	if (@$queue) {
…		…
1740	} else {	2525	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2527	}
1743	}	2528	}
1744	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1745	);	2548	);
1746		2549
1747	=item $client->coro (\&cb)	2550	=item $client->async (\&cb)
1748		2551
1749	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2553	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2554	or loss of connection).
1752		2555
1753	=cut	2556	=cut
1754		2557
1755	sub cf::client::coro {	2558	sub cf::client::async {
1756	my ($self, $cb) = @_;	2559	my ($self, $cb) = @_;
1757		2560
1758	my $coro = &cf::async ($cb);	2561	my $coro = &Coro::async ($cb);
1759		2562
1760	$coro->on_destroy (sub {	2563	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2564	delete $self->{_coro}{$coro+0};
1762	});	2565	});
1763		2566
…		…
1796		2599
1797	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
1798		2601
1799	=pod	2602	=pod
1800		2603
1801	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
1802		2605
1803	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
1804	cf::object::player player	2610	cf::object::player
1805	cf::player peaceful	2611	player
1806	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
1807		2618
1808	=cut	2619	=cut
1809		2620
1810	for (	2621	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
1812	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
1815	) {	2627	) {
1816	no strict 'refs';	2628	no strict 'refs';
…		…
1887	=back	2699	=back
1888		2700
1889	=cut	2701	=cut
1890		2702
1891	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
1892		2705
1893	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
1894		2708
1895	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
1896	currently store anything that can be serialised using Storable, which
1897	excludes objects.
1898		2710
1899	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
1900	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
1901		2714
1902	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
1903		2716
1904	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
1905		2719
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	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
1942		2722
1943	my $pid;	2723	while (my ($face, $info) = each %$faces) {
		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
		2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1944		2729
1945	sub db_save() {	2730	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]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2731	}
1991	);
1992	}
1993		2732
1994	#############################################################################	2733	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	2734	next unless $info->{smooth};
		2735	my $idx = cf::face::find $face
		2736	or next;
		2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
		2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2740	} else {
		2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2742	}
		2743
		2744	cf::cede_to_tick;
		2745	}
		2746	}
		2747
		2748	{
		2749	my $anims = $facedata->{animinfo};
		2750
		2751	while (my ($anim, $info) = each %$anims) {
		2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2753	cf::cede_to_tick;
		2754	}
		2755
		2756	cf::anim::invalidate_all; # d'oh
		2757	}
		2758
		2759	{
		2760	# TODO: for gcfclient pleasure, we should give resources
		2761	# that gcfclient doesn't grok a >10000 face index.
		2762	my $res = $facedata->{resource};
		2763	my $enc = JSON::XS->new->utf8->canonical;
		2764
		2765	while (my ($name, $info) = each %$res) {
		2766	my $meta = $enc->encode ({
		2767	name => $name,
		2768	type => $info->{type},
		2769	copyright => $info->{copyright}, #TODO#
		2770	});
		2771	my $data = pack "(w/a*)*", $meta, $info->{data};
		2772	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2773
		2774	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2775	cf::face::set_type $idx, 1;
		2776	cf::face::set_data $idx, 0, $data, $chk;
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	1
		2783	}
		2784
		2785	sub reload_regions {
		2786	load_resource_file "$MAPDIR/regions"
		2787	or die "unable to load regions file\n";
		2788
		2789	for (cf::region::list) {
		2790	$_->{match} = qr/$_->{match}/
		2791	if exists $_->{match};
		2792	}
		2793	}
		2794
		2795	sub reload_facedata {
		2796	load_facedata "$DATADIR/facedata"
		2797	or die "unable to load facedata\n";
		2798	}
		2799
		2800	sub reload_archetypes {
		2801	load_resource_file "$DATADIR/archetypes"
		2802	or die "unable to load archetypes\n";
		2803	#d# NEED to laod twice to resolve forward references
		2804	# this really needs to be done in an extra post-pass
		2805	# (which needs to be synchronous, so solve it differently)
		2806	load_resource_file "$DATADIR/archetypes"
		2807	or die "unable to load archetypes\n";
		2808	}
		2809
		2810	sub reload_treasures {
		2811	load_resource_file "$DATADIR/treasures"
		2812	or die "unable to load treasurelists\n";
		2813	}
		2814
		2815	sub reload_resources {
		2816	warn "reloading resource files...\n";
		2817
		2818	reload_regions;
		2819	reload_facedata;
		2820	#reload_archetypes;#d#
		2821	reload_archetypes;
		2822	reload_treasures;
		2823
		2824	warn "finished reloading resource files\n";
		2825	}
		2826
		2827	sub init {
		2828	reload_resources;
		2829	}
1996		2830
1997	sub cfg_load {	2831	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2832	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2833	or return;
2000		2834
2001	local $/;	2835	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2836	*CFG = YAML::Syck::Load <$fh>;
2003		2837
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2838	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2839
		2840	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2841	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2842
2006	if (exists $CFG{mlockall}) {	2843	if (exists $CFG{mlockall}) {
2007	eval {	2844	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2845	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2846	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2847	};
2011	warn $@ if $@;	2848	warn $@ if $@;
2012	}	2849	}
2013	}	2850	}
2014		2851
2015	sub main {	2852	sub main {
2016	# we must not ever block the main coroutine	2853	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2854	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2855	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2856	(async {
2020	Event::one_event;	2857	Event::one_event;
2021	})->();	2858	})->prio (Coro::PRIO_MAX);
2022	};	2859	};
2023		2860
2024	cfg_load;	2861	cfg_load;
2025	db_load;	2862	db_init;
2026	load_extensions;	2863	load_extensions;
		2864
		2865	$TICK_WATCHER->start;
2027	Event::loop;	2866	Event::loop;
2028	}	2867	}
2029		2868
2030	#############################################################################	2869	#############################################################################
2031	# initialisation	2870	# initialisation and cleanup
2032		2871
		2872	# install some emergency cleanup handlers
		2873	BEGIN {
		2874	for my $signal (qw(INT HUP TERM)) {
		2875	Event->signal (
		2876	reentrant => 0,
		2877	data => WF_AUTOCANCEL,
		2878	signal => $signal,
		2879	prio => 0,
		2880	cb => sub {
		2881	cf::cleanup "SIG$signal";
		2882	},
		2883	);
		2884	}
		2885	}
		2886
		2887	sub write_runtime {
		2888	my $runtime = "$LOCALDIR/runtime";
		2889
		2890	# first touch the runtime file to show we are still running:
		2891	# the fsync below can take a very very long time.
		2892
		2893	IO::AIO::aio_utime $runtime, undef, undef;
		2894
		2895	my $guard = cf::lock_acquire "write_runtime";
		2896
		2897	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2898	or return;
		2899
		2900	my $value = $cf::RUNTIME + 90 + 10;
		2901	# 10 is the runtime save interval, for a monotonic clock
		2902	# 60 allows for the watchdog to kill the server.
		2903
		2904	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2905	and return;
		2906
		2907	# always fsync - this file is important
		2908	aio_fsync $fh
		2909	and return;
		2910
		2911	# touch it again to show we are up-to-date
		2912	aio_utime $fh, undef, undef;
		2913
		2914	close $fh
		2915	or return;
		2916
		2917	aio_rename "$runtime~", $runtime
		2918	and return;
		2919
		2920	warn "runtime file written.\n";
		2921
		2922	1
		2923	}
		2924
		2925	sub emergency_save() {
		2926	my $freeze_guard = cf::freeze_mainloop;
		2927
		2928	warn "enter emergency perl save\n";
		2929
		2930	cf::sync_job {
		2931	# use a peculiar iteration method to avoid tripping on perl
		2932	# refcount bugs in for. also avoids problems with players
		2933	# and maps saved/destroyed asynchronously.
		2934	warn "begin emergency player save\n";
		2935	for my $login (keys %cf::PLAYER) {
		2936	my $pl = $cf::PLAYER{$login} or next;
		2937	$pl->valid or next;
		2938	$pl->save;
		2939	}
		2940	warn "end emergency player save\n";
		2941
		2942	warn "begin emergency map save\n";
		2943	for my $path (keys %cf::MAP) {
		2944	my $map = $cf::MAP{$path} or next;
		2945	$map->valid or next;
		2946	$map->save;
		2947	}
		2948	warn "end emergency map save\n";
		2949
		2950	warn "begin emergency database checkpoint\n";
		2951	BDB::db_env_txn_checkpoint $DB_ENV;
		2952	warn "end emergency database checkpoint\n";
		2953	};
		2954
		2955	warn "leave emergency perl save\n";
		2956	}
		2957
		2958	sub post_cleanup {
		2959	my ($make_core) = @_;
		2960
		2961	warn Carp::longmess "post_cleanup backtrace"
		2962	if $make_core;
		2963	}
		2964
2033	sub reload() {	2965	sub do_reload_perl() {
2034	# can/must only be called in main	2966	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2967	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2968	warn "can only reload from main coroutine";
2037	return;	2969	return;
2038	}	2970	}
2039		2971
2040	warn "reloading...";	2972	warn "reloading...";
2041		2973
2042	my $guard = freeze_mainloop;	2974	warn "entering sync_job";
		2975
		2976	cf::sync_job {
		2977	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2978	cf::emergency_save;
		2979	cf::write_runtime; # external watchdog should not bark
2044		2980
2045	eval {	2981	warn "syncing database to disk";
		2982	BDB::db_env_txn_checkpoint $DB_ENV;
		2983
2046	# if anything goes wrong in here, we should simply crash as we already saved	2984	# if anything goes wrong in here, we should simply crash as we already saved
2047		2985
2048	# cancel all watchers	2986	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2987	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2988	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2989	}
2052		2990
		2991	warn "flushing outstanding aio requests";
		2992	for (;;) {
		2993	BDB::flush;
		2994	IO::AIO::flush;
		2995	Coro::cede;
		2996	last unless IO::AIO::nreqs || BDB::nreqs;
		2997	warn "iterate...";
		2998	}
		2999
		3000	++$RELOAD;
		3001
2053	# cancel all extension coros	3002	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	3003	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3004	%EXT_CORO = ();
2056		3005
2057	# unload all extensions	3006	warn "removing commands";
2058	for (@exts) {	3007	%COMMAND = ();
		3008
		3009	warn "removing ext/exti commands";
		3010	%EXTCMD = ();
		3011	%EXTICMD = ();
		3012
		3013	warn "unloading/nuking all extensions";
		3014	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	3015	warn "... unloading $pkg";
2060	unload_extension $_;	3016
		3017	if (my $cb = $pkg->can ("unload")) {
		3018	eval {
		3019	$cb->($pkg);
		3020	1
		3021	} or warn "$pkg unloaded, but with errors: $@";
2061	}	3022	}
2062		3023
		3024	warn "... nuking $pkg";
		3025	Symbol::delete_package $pkg;
		3026	}
		3027
2063	# unload all modules loaded from $LIBDIR	3028	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	3029	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3030	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		3031
2067	warn "removing <$k>";	3032	warn "... unloading $k";
2068	delete $INC{$k};	3033	delete $INC{$k};
2069		3034
2070	$k =~ s/\.pm$//;	3035	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	3036	$k =~ s/\//::/g;
2072		3037
…		…
2075	}	3040	}
2076		3041
2077	Symbol::delete_package $k;	3042	Symbol::delete_package $k;
2078	}	3043	}
2079		3044
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3045	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3046	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3047	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3048
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3049	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3050	delete $INC{"cf.pm"};
		3051	delete $INC{"cf/pod.pm"};
2093		3052
2094	# don't, removes xs symbols, too,	3053	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3054	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3055	#Symbol::delete_package __PACKAGE__;
2097		3056
2098	# reload cf.pm	3057	warn "unload completed, starting to reload now";
		3058
2099	warn "reloading cf.pm";	3059	warn "reloading cf.pm";
2100	require cf;	3060	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3061	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3062
2103	# load config and database again	3063	warn "loading config and database again";
2104	cf::cfg_load;	3064	cf::cfg_load;
2105	cf::db_load;
2106		3065
2107	# load extensions
2108	warn "load extensions";	3066	warn "loading extensions";
2109	cf::load_extensions;	3067	cf::load_extensions;
2110		3068
2111	# reattach attachments to objects	3069	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3070	_global_reattach; # objects, sockets
2113	_global_reattach;	3071	warn "reattaching attachments to maps";
2114	};	3072	reattach $_ for values %MAP;
		3073	warn "reattaching attachments to players";
		3074	reattach $_ for values %PLAYER;
2115		3075
2116	if ($@) {	3076	warn "leaving sync_job";
		3077
		3078	1
		3079	} or do {
2117	warn $@;	3080	warn $@;
2118	warn "error while reloading, exiting.";	3081	warn "error while reloading, exiting.";
2119	exit 1;	3082	exit 1;
2120	}	3083	};
2121		3084
2122	warn "reloaded successfully";	3085	warn "reloaded";
2123	};	3086	};
2124		3087
2125	#############################################################################	3088	our $RELOAD_WATCHER; # used only during reload
2126		3089
2127	unless ($LINK_MAP) {	3090	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3091	# doing reload synchronously and two reloads happen back-to-back,
		3092	# coro crashes during coro_state_free->destroy here.
2129		3093
2130	$LINK_MAP->width (41);	3094	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3095	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,	3096	after => 0,
		3097	data => WF_AUTOCANCEL,
2140	cb => sub {	3098	cb => sub {
2141	$_[0]->w->cancel;	3099	do_reload_perl;
2142		3100	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	});	3101	},
2161		3102	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3103	}
2167
2168	register "<global>", __PACKAGE__;
2169		3104
2170	register_command "reload" => sub {	3105	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3106	my ($who, $arg) = @_;
2172		3107
2173	if ($who->flag (FLAG_WIZ)) {	3108	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3109	$who->message ("reloading server.");
		3110	async { reload_perl };
2177	}	3111	}
2178	};	3112	};
2179		3113
2180	unshift @INC, $LIBDIR;	3114	unshift @INC, $LIBDIR;
2181		3115
		3116	my $bug_warning = 0;
		3117
		3118	our @WAIT_FOR_TICK;
		3119	our @WAIT_FOR_TICK_BEGIN;
		3120
		3121	sub wait_for_tick {
		3122	return unless $TICK_WATCHER->is_active;
		3123	return if $Coro::current == $Coro::main;
		3124
		3125	my $signal = new Coro::Signal;
		3126	push @WAIT_FOR_TICK, $signal;
		3127	$signal->wait;
		3128	}
		3129
		3130	sub wait_for_tick_begin {
		3131	return unless $TICK_WATCHER->is_active;
		3132	return if $Coro::current == $Coro::main;
		3133
		3134	my $signal = new Coro::Signal;
		3135	push @WAIT_FOR_TICK_BEGIN, $signal;
		3136	$signal->wait;
		3137	}
		3138
		3139	my $min = 1e6;#d#
		3140	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	3141	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3142	reentrant => 0,
		3143	parked => 1,
2184	prio => 0,	3144	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3145	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3146	data => WF_AUTOCANCEL,
2187	cb => sub {	3147	cb => sub {
		3148	if ($Coro::current != $Coro::main) {
		3149	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3150	unless ++$bug_warning > 10;
		3151	return;
		3152	}
		3153
		3154	$NOW = $tick_start = Event::time;
		3155
2188	cf::server_tick; # one server iteration	3156	cf::server_tick; # one server iteration
		3157
		3158	0 && sync_job {#d#
		3159	for(1..10) {
		3160	my $t = Event::time;
		3161	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3162	or die;
		3163
		3164	$map->width (50);
		3165	$map->height (50);
		3166	$map->alloc;
		3167	$map->_load_objects ("/tmp/x.map", 1);
		3168	my $t = Event::time - $t;
		3169
		3170	#next unless $t < 0.0013;#d#
		3171	if ($t < $min) {
		3172	$min = $t;
		3173	}
		3174	$avg = $avg * 0.99 + $t * 0.01;
		3175	}
		3176	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3177	exit 0;
		3178	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3179	};
		3180
2189	$RUNTIME += $TICK;	3181	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3182	$NEXT_TICK += $TICK;
2191		3183
		3184	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3185	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3186	Coro::async_pool {
		3187	write_runtime
		3188	or warn "ERROR: unable to write runtime file: $!";
		3189	};
		3190	}
		3191
		3192	# my $AFTER = Event::time;
		3193	# warn $AFTER - $NOW;#d#
		3194
		3195	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3196	$sig->send;
		3197	}
		3198	while (my $sig = shift @WAIT_FOR_TICK) {
		3199	$sig->send;
		3200	}
		3201
		3202	$NOW = Event::time;
		3203
2192	# if we are delayed by four ticks or more, skip them all	3204	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3205	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3206
2195	$TICK_WATCHER->at ($NEXT_TICK);	3207	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3208	$TICK_WATCHER->start;
		3209
		3210	$LOAD = ($NOW - $tick_start) / $TICK;
		3211	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3212
		3213	_post_tick;
		3214
		3215
2197	},	3216	},
2198	);	3217	);
2199		3218
		3219	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	3220	BDB::max_poll_time $TICK * 0.1;
2201		3221	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3222	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3223	fd => BDB::poll_fileno,
2204	poll => 'r',	3224	poll => 'r',
2205	prio => 5,	3225	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3226	data => WF_AUTOCANCEL,
2212	after => 0,	3227	cb => \&BDB::poll_cb,
2213	interval => 10,	3228	);
2214	cb => sub {	3229	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3230
2216	write_runtime	3231	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3232	my $status;
		3233	my $current = $Coro::current;
		3234	(
		3235	sub {
		3236	$status = $!;
		3237	$current->ready; undef $current;
		3238	},
		3239	sub {
		3240	Coro::schedule while defined $current;
		3241	$! = $status;
		3242	},
		3243	)
		3244	};
		3245
		3246	unless ($DB_ENV) {
		3247	$DB_ENV = BDB::db_env_create;
		3248
		3249	cf::sync_job {
		3250	eval {
		3251	BDB::db_env_open
		3252	$DB_ENV,
		3253	$BDBDIR,
		3254	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3255	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3256	0666;
		3257
		3258	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3259
		3260	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3261	$DB_ENV->set_lk_detect;
		3262	};
		3263
		3264	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3265	};
2219	},	3266	}
2220	);	3267	}
		3268
		3269	{
		3270	IO::AIO::min_parallel 8;
		3271
		3272	undef $Coro::AIO::WATCHER;
		3273	IO::AIO::max_poll_time $TICK * 0.1;
		3274	$AIO_POLL_WATCHER = Event->io (
		3275	reentrant => 0,
		3276	data => WF_AUTOCANCEL,
		3277	fd => IO::AIO::poll_fileno,
		3278	poll => 'r',
		3279	prio => 6,
		3280	cb => \&IO::AIO::poll_cb,
		3281	);
		3282	}
		3283
		3284	my $_log_backtrace;
		3285
		3286	sub _log_backtrace {
		3287	my ($msg, @addr) = @_;
		3288
		3289	$msg =~ s/\n//;
		3290
		3291	# limit the # of concurrent backtraces
		3292	if ($_log_backtrace < 2) {
		3293	++$_log_backtrace;
		3294	async {
		3295	my @bt = fork_call {
		3296	@addr = map { sprintf "%x", $_ } @addr;
		3297	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3298	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3299	or die "addr2line: $!";
		3300
		3301	my @funcs;
		3302	my @res = <$fh>;
		3303	chomp for @res;
		3304	while (@res) {
		3305	my ($func, $line) = splice @res, 0, 2, ();
		3306	push @funcs, "[$func] $line";
		3307	}
		3308
		3309	@funcs
		3310	};
		3311
		3312	LOG llevInfo, "[ABT] $msg\n";
		3313	LOG llevInfo, "[ABT] $_\n" for @bt;
		3314	--$_log_backtrace;
		3315	};
		3316	} else {
		3317	LOG llevInfo, "[ABT] $msg\n";
		3318	LOG llevInfo, "[ABT] [suppressed]\n";
		3319	}
		3320	}
		3321
		3322	# load additional modules
		3323	use cf::pod;
2221		3324
2222	END { cf::emergency_save }	3325	END { cf::emergency_save }
2223		3326
2224	1	3327	1
2225		3328

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