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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.313 by root, Sun Jul 22 14:17:58 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	132	every server tick.
93		133
94	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		203
135	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
160	=cut	227	=item dumpval $ref
161		228
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
163		249
164	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
165		251
166	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
167		253
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
176		255
177	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
178		257
179	=cut	258	=cut
180		259
181	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		261
186	=item my $guard = cf::guard { BLOCK }	262	sub to_json ($) { $json_coder->encode ($_[0]) }
187		263	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		264
208	=item cf::lock_wait $string	265	=item cf::lock_wait $string
209		266
210	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
211		268
212	=item my $lock = cf::lock_acquire $string	269	=item my $lock = cf::lock_acquire $string
213		270
214	Wait until the given lock is available and then acquires it and returns	271	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
217	returned.	274	returned.
218		275
219	Lock names should begin with a unique identifier (for example, find_map	276	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
221		282
222	=cut	283	=cut
223		284
224	our %LOCK;	285	our %LOCK;
225		286
…		…
239	# wait, to be sure we are not locked	300	# wait, to be sure we are not locked
240	lock_wait $key;	301	lock_wait $key;
241		302
242	$LOCK{$key} = [];	303	$LOCK{$key} = [];
243		304
244	cf::guard {	305	Coro::guard {
245	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
247	}	308	}
248	}	309	}
249		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::async { BLOCK }
		328
		329	Currently the same as Coro::async_pool, meaning you cannot use
		330	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		331	thing you are allowed to do is call C<prio> on it.
		332
		333	=cut
		334
		335	BEGIN { *async = \&Coro::async_pool }
		336
250	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
251		338
252	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
255		343
256	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
259	fast or be very important.	347	fast or be very important.
…		…
262		350
263	sub sync_job(&) {	351	sub sync_job(&) {
264	my ($job) = @_;	352	my ($job) = @_;
265		353
266	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
267	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
269		359
270	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	361	# (but this is cancel-safe)
272	local $FREEZE = 1;	362	my $freeze_guard = freeze_mainloop;
273		363
274	my $busy = 1;	364	my $busy = 1;
275	my @res;	365	my @res;
276		366
277	(Coro::async {	367	(async {
278	@res = eval { $job->() };	368	@res = eval { $job->() };
279	warn $@ if $@;	369	warn $@ if $@;
280	undef $busy;	370	undef $busy;
281	})->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
282		372
283	while ($busy) {	373	while ($busy) {
284	Coro::cede_notself;	374	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	375	}
		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
287		383
288	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
289	} else {	385	} else {
290	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
291		387
292	$job->()	388	$job->()
293	}	389	}
294	}	390	}
295		391
296	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
297		393
298	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
300		396
301	=cut	397	=cut
302		398
303	sub coro(&) {	399	sub async_ext(&) {
304	my $cb = shift;	400	my $cb = shift;
305		401
306	my $coro; $coro = async {	402	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		403
313	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
315	});	406	});
316	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
317		408
318	$coro	409	$coro
319	}	410	}
320		411
321	sub write_runtime {	412	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		413
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
325	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
326		418
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	419	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		420
331	aio_fsync $fh	421	sub _store_scalar {
332	and return;	422	open my $fh, ">", \my $buf
333		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
334	close $fh	425	close $fh;
335	or return;
336		426
337	aio_rename "$runtime~", $runtime	427	$buf
338	and return;	428	}
339		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
340	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	599	}
342		600
343	=back	601	=back
344		602
345	=cut	603	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		604
467	#############################################################################	605	#############################################################################
468		606
469	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
470		608
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
474		612
475	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	615	Crossfire TRT).
478		616
479	=over 4	617	=over 4
480		618
481	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
482		620
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	735	our @CB_MAP = ();
598		736
599	my %attachment;	737	my %attachment;
600		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
601	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
603		747
604	use sort 'stable';	748	use sort 'stable';
605		749
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
640		784
641	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		789
646	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	791	my $pkg = shift @arg;
648		792
649	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
679	}	823	}
680		824
681	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
682	} else {	826	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	828	}
685		829
686	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
687	}	831	}
688		832
…		…
690	if (ref $_[0]) {	834	if (ref $_[0]) {
691	_object_attach @_;	835	_object_attach @_;
692	} else {	836	} else {
693	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
694	}	838	}
		839	_recalc_want;
695	};	840	};
696		841
697	# all those should be optimised	842	# all those should be optimised
698	sub cf::attachable::detach {	843	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
703	reattach ($obj);	848	reattach ($obj);
704	} else {	849	} else {
705	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
706	}	851	}
		852	_recalc_want;
707	};	853	};
708		854
709	sub cf::attachable::attached {	855	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
711		857
…		…
726	";	872	";
727	die if $@;	873	die if $@;
728	}	874	}
729		875
730	our $override;	876	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		878
733	sub override {	879	sub override {
734	$override = 1;	880	$override = 1;
735	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
736	}	882	}
737		883
738	sub do_invoke {	884	sub do_invoke {
739	my $event = shift;	885	my $event = shift;
740	my $callbacks = shift;	886	my $callbacks = shift;
741		887
742	@invoke_results = ();	888	@INVOKE_RESULTS = ();
743		889
744	local $override;	890	local $override;
745		891
746	for (@$callbacks) {	892	for (@$callbacks) {
747	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
764		910
765	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
766		912
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		916
771	=back	917	=back
772		918
773	=cut	919	=cut
774		920
775	#############################################################################	921	#############################################################################
776	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
777		934
778	sub reattach {	935	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	937	my ($obj) = @_;
		938
		939	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		940
782	my $registry = $obj->registry;	941	my $registry = $obj->registry;
783		942
784	@$registry = ();	943	@$registry = ();
785		944
…		…
832	$filename, length $$rdata, scalar @$objs;	991	$filename, length $$rdata, scalar @$objs;
833		992
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	993	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	994	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	995	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	996	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	997	close $fh;
839		998
840	if (@$objs) {	999	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1000	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1001	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1002	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1003	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1004	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1005	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1006	aio_rename "$filename.pst~", "$filename.pst";
848	}	1007	}
849	} else {	1008	} else {
850	aio_unlink "$filename.pst";	1009	aio_unlink "$filename.pst";
…		…
882	or return;	1041	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1043	}
885		1044
886	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1047	return ($data, $av);
889	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
890		1055
891	#############################################################################	1056	#############################################################################
892	# command handling &c	1057	# command handling &c
893		1058
894	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1073	}
909		1074
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1076
912	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
913		1082
914	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
915	called.	1084	called.
916		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
917	=cut	1097	=cut
918		1098
919	sub register_extcmd {	1099	sub register_extcmd {
920	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
921		1101
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
926	}	1109	}
927		1110
928	cf::player->attach (	1111	cf::player->attach (
929	on_command => sub {	1112	on_command => sub {
930	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1122	cf::override;
940	},	1123	},
941	on_extcmd => sub {	1124	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
943		1126
944	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1128
946	if (ref $msg) {	1129	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	1133	}
951	}	1134	}
952	} else {	1135	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1136	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		1138
956	cf::override;	1139	cf::override;
957	},	1140	},
958	);	1141	);
959		1142
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
		1147	for my $path (<$LIBDIR/*.ext>) {
		1148	next unless -r $path;
		1149
		1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
		1207	}
		1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
		1213	};
		1214	}
		1215
		1216	#############################################################################
		1217
		1218	=back
		1219
		1220	=head2 CORE EXTENSIONS
		1221
		1222	Functions and methods that extend core crossfire objects.
		1223
		1224	=cut
		1225
		1226	package cf::player;
		1227
		1228	use Coro::AIO;
		1229
		1230	=head3 cf::player
		1231
		1232	=over 4
		1233
		1234	=item cf::player::find $login
		1235
		1236	Returns the given player object, loading it if necessary (might block).
		1237
		1238	=cut
		1239
		1240	sub playerdir($) {
		1241	"$PLAYERDIR/"
		1242	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1243	}
		1244
		1245	sub path($) {
		1246	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1247
		1248	(playerdir $login) . "/playerdata"
		1249	}
		1250
		1251	sub find_active($) {
		1252	$cf::PLAYER{$_[0]}
		1253	and $cf::PLAYER{$_[0]}->active
		1254	and $cf::PLAYER{$_[0]}
		1255	}
		1256
		1257	sub exists($) {
		1258	my ($login) = @_;
		1259
		1260	$cf::PLAYER{$login}
		1261	or cf::sync_job { !aio_stat path $login }
		1262	}
		1263
		1264	sub find($) {
		1265	return $cf::PLAYER{$_[0]} || do {
		1266	my $login = $_[0];
		1267
		1268	my $guard = cf::lock_acquire "user_find:$login";
		1269
		1270	$cf::PLAYER{$_[0]} || do {
		1271	# rename old playerfiles to new ones
		1272	#TODO: remove when no longer required
		1273	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1274	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1275	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1276	aio_unlink +(playerdir $login) . "/$login.pl";
		1277
		1278	my $pl = load_pl path $login
		1279	or return;
		1280	$cf::PLAYER{$login} = $pl
		1281	}
		1282	}
		1283	}
		1284
		1285	sub save($) {
		1286	my ($pl) = @_;
		1287
		1288	return if $pl->{deny_save};
		1289
		1290	my $path = path $pl;
		1291	my $guard = cf::lock_acquire "user_save:$path";
		1292
		1293	return if $pl->{deny_save};
		1294
		1295	aio_mkdir playerdir $pl, 0770;
		1296	$pl->{last_save} = $cf::RUNTIME;
		1297
		1298	$pl->save_pl ($path);
		1299	Coro::cede;
		1300	}
		1301
		1302	sub new($) {
		1303	my ($login) = @_;
		1304
		1305	my $self = create;
		1306
		1307	$self->ob->name ($login);
		1308	$self->{deny_save} = 1;
		1309
		1310	$cf::PLAYER{$login} = $self;
		1311
		1312	$self
		1313	}
		1314
		1315	=item $pl->quit_character
		1316
		1317	Nukes the player without looking back. If logged in, the connection will
		1318	be destroyed. May block for a long time.
		1319
		1320	=cut
		1321
		1322	sub quit_character {
		1323	my ($pl) = @_;
		1324
		1325	my $name = $pl->ob->name;
		1326
		1327	$pl->{deny_save} = 1;
		1328	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1329
		1330	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1331	$pl->deactivate;
		1332	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1333	$pl->ns->destroy if $pl->ns;
		1334
		1335	my $path = playerdir $pl;
		1336	my $temp = "$path~$cf::RUNTIME~deleting~";
		1337	aio_rename $path, $temp;
		1338	delete $cf::PLAYER{$pl->ob->name};
		1339	$pl->destroy;
		1340
		1341	my $prefix = qr<^~\Q$name\E/>;
		1342
		1343	# nuke player maps
		1344	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1345
		1346	IO::AIO::aio_rmtree $temp;
		1347	}
		1348
		1349	=item $pl->kick
		1350
		1351	Kicks a player out of the game. This destroys the connection.
		1352
		1353	=cut
		1354
		1355	sub kick {
		1356	my ($pl, $kicker) = @_;
		1357
		1358	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1359	$pl->killer ("kicked");
		1360	$pl->ns->destroy;
		1361	}
		1362
		1363	=item cf::player::list_logins
		1364
		1365	Returns am arrayref of all valid playernames in the system, can take a
		1366	while and may block, so not sync_job-capable, ever.
		1367
		1368	=cut
		1369
		1370	sub list_logins {
		1371	my $dirs = aio_readdir $PLAYERDIR
		1372	or return [];
		1373
		1374	my @logins;
		1375
		1376	for my $login (@$dirs) {
		1377	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1378	aio_read $fh, 0, 512, my $buf, 0 or next;
		1379	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1380
		1381	utf8::decode $login;
		1382	push @logins, $login;
		1383	}
		1384
		1385	\@logins
		1386	}
		1387
		1388	=item $player->maps
		1389
		1390	Returns an arrayref of map paths that are private for this
		1391	player. May block.
		1392
		1393	=cut
		1394
		1395	sub maps($) {
		1396	my ($pl) = @_;
		1397
		1398	$pl = ref $pl ? $pl->ob->name : $pl;
		1399
		1400	my $files = aio_readdir playerdir $pl
		1401	or return;
		1402
		1403	my @paths;
		1404
		1405	for (@$files) {
		1406	utf8::decode $_;
		1407	next if /\.(?:pl|pst)$/;
		1408	next unless /^$PATH_SEP/o;
		1409
		1410	push @paths, cf::map::normalise "~$pl/$_";
		1411	}
		1412
		1413	\@paths
		1414	}
		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
		1466	=item $player->ext_reply ($msgid, %msg)
		1467
		1468	Sends an ext reply to the player.
		1469
		1470	=cut
		1471
		1472	sub ext_reply($$%) {
		1473	my ($self, $id, %msg) = @_;
		1474
		1475	$msg{msgid} = $id;
		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1477	}
		1478
		1479	=item $player->ext_event ($type, %msg)
		1480
		1481	Sends an ext event to the client.
		1482
		1483	=cut
		1484
		1485	sub ext_event($$%) {
		1486	my ($self, $type, %msg) = @_;
		1487
		1488	$self->ns->ext_event ($type, %msg);
		1489	}
		1490
		1491	=head3 cf::region
		1492
		1493	=over 4
		1494
		1495	=cut
		1496
		1497	package cf::region;
		1498
		1499	=item cf::region::find_by_path $path
		1500
		1501	Tries to decuce the likely region for a map knowing only its path.
		1502
		1503	=cut
		1504
		1505	sub find_by_path($) {
967	my ($path) = @_;	1506	my ($path) = @_;
968		1507
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1508	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1509
975	warn "loading '$path' into '$pkg'\n";	1510	for my $region (list) {
976		1511	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1512	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1513	if $region->specificity > $specificity;
979		1514	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1515	}
1009		1516
1010	# remove commands	1517	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1518	}
1116		1519
1117	=back	1520	=back
1118
1119		1521
1120	=head3 cf::map	1522	=head3 cf::map
1121		1523
1122	=over 4	1524	=over 4
1123		1525
…		…
1126	package cf::map;	1528	package cf::map;
1127		1529
1128	use Fcntl;	1530	use Fcntl;
1129	use Coro::AIO;	1531	use Coro::AIO;
1130		1532
		1533	use overload
		1534	'""' => \&as_string,
		1535	fallback => 1;
		1536
1131	our $MAX_RESET = 7200;	1537	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1538	our $DEFAULT_RESET = 3000;
1133		1539
1134	sub generate_random_map {	1540	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1541	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1542	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1543	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1544	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1545	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1546	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1547	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1548	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1549	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1550	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1551	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1552	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1553	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1554	(cf::region::find $rmp->{region}), $rmp->{custom}
		1555	)
		1556	}
		1557
		1558	=item cf::map->register ($regex, $prio)
		1559
		1560	Register a handler for the map path matching the given regex at the
		1561	givne priority (higher is better, built-in handlers have priority 0, the
		1562	default).
		1563
		1564	=cut
		1565
		1566	sub register {
		1567	my (undef, $regex, $prio) = @_;
		1568	my $pkg = caller;
		1569
		1570	no strict;
		1571	push @{"$pkg\::ISA"}, __PACKAGE__;
		1572
		1573	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1574	}
		1575
		1576	# also paths starting with '/'
		1577	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1578
		1579	sub thawer_merge {
		1580	my ($self, $merge) = @_;
		1581
		1582	# we have to keep some variables in memory intact
		1583	local $self->{path};
		1584	local $self->{load_path};
		1585
		1586	$self->SUPER::thawer_merge ($merge);
		1587	}
		1588
		1589	sub normalise {
		1590	my ($path, $base) = @_;
		1591
		1592	$path = "$path"; # make sure its a string
		1593
		1594	$path =~ s/\.map$//;
		1595
		1596	# map plan:
		1597	#
		1598	# /! non-realised random map exit (special hack!)
		1599	# {... are special paths that are not being touched
		1600	# ?xxx/... are special absolute paths
		1601	# ?random/... random maps
		1602	# /... normal maps
		1603	# ~user/... per-player map of a specific user
		1604
		1605	$path =~ s/$PATH_SEP/\//go;
		1606
		1607	# treat it as relative path if it starts with
		1608	# something that looks reasonable
		1609	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1610	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1611
		1612	$base =~ s{[^/]+/?$}{};
		1613	$path = "$base/$path";
		1614	}
		1615
		1616	for ($path) {
		1617	redo if s{//}{/};
		1618	redo if s{/\.?/}{/};
		1619	redo if s{/[^/]+/\.\./}{/};
		1620	}
		1621
		1622	$path
		1623	}
		1624
		1625	sub new_from_path {
		1626	my (undef, $path, $base) = @_;
		1627
		1628	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1629
		1630	$path = normalise $path, $base;
		1631
		1632	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1633	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1634	my $self = bless cf::map::new, $pkg;
		1635	$self->{path} = $path; $self->path ($path);
		1636	$self->init; # pass $1 etc.
		1637	return $self;
		1638	}
		1639	}
		1640
		1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1642	()
		1643	}
		1644
		1645	sub init {
		1646	my ($self) = @_;
		1647
		1648	$self
		1649	}
		1650
		1651	sub as_string {
		1652	my ($self) = @_;
		1653
		1654	"$self->{path}"
		1655	}
		1656
		1657	# the displayed name, this is a one way mapping
		1658	sub visible_name {
		1659	&as_string
		1660	}
		1661
		1662	# the original (read-only) location
		1663	sub load_path {
		1664	my ($self) = @_;
		1665
		1666	"$MAPDIR/$self->{path}.map"
		1667	}
		1668
		1669	# the temporary/swap location
		1670	sub save_path {
		1671	my ($self) = @_;
		1672
		1673	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1674	"$TMPDIR/$path.map"
		1675	}
		1676
		1677	# the unique path, undef == no special unique path
		1678	sub uniq_path {
		1679	my ($self) = @_;
		1680
		1681	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1682	"$UNIQUEDIR/$path"
1151	}	1683	}
1152		1684
1153	# and all this just because we cannot iterate over	1685	# and all this just because we cannot iterate over
1154	# all maps in C++...	1686	# all maps in C++...
1155	sub change_all_map_light {	1687	sub change_all_map_light {
1156	my ($change) = @_;	1688	my ($change) = @_;
1157		1689
1158	$_->change_map_light ($change) for values %cf::MAP;	1690	$_->change_map_light ($change)
		1691	for grep $_->outdoor, values %cf::MAP;
1159	}	1692	}
1160		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
		1700	}
		1701
		1702	sub unlink_save {
		1703	my ($self) = @_;
		1704
		1705	utf8::encode (my $save = $self->save_path);
		1706	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1707	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1708	}
		1709
1161	sub try_load_header($) {	1710	sub load_header_from($) {
1162	my ($path) = @_;	1711	my ($self, $path) = @_;
1163		1712
1164	utf8::encode $path;	1713	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1714	#aio_open $path, O_RDONLY, 0
		1715	# or return;
		1716
		1717	$self->_load_header ($path)
1166	or return;	1718	or return;
1167		1719
1168	my $map = cf::map::new	1720	$self->{load_path} = $path;
		1721
		1722	1
		1723	}
		1724
		1725	sub load_header_orig {
		1726	my ($self) = @_;
		1727
		1728	$self->load_header_from ($self->load_path)
		1729	}
		1730
		1731	sub load_header_temp {
		1732	my ($self) = @_;
		1733
		1734	$self->load_header_from ($self->save_path)
		1735	}
		1736
		1737	sub prepare_temp {
		1738	my ($self) = @_;
		1739
		1740	$self->last_access ((delete $self->{last_access})
		1741	|| $cf::RUNTIME); #d#
		1742	# safety
		1743	$self->{instantiate_time} = $cf::RUNTIME
		1744	if $self->{instantiate_time} > $cf::RUNTIME;
		1745	}
		1746
		1747	sub prepare_orig {
		1748	my ($self) = @_;
		1749
		1750	$self->{load_original} = 1;
		1751	$self->{instantiate_time} = $cf::RUNTIME;
		1752	$self->last_access ($cf::RUNTIME);
		1753	$self->instantiate;
		1754	}
		1755
		1756	sub load_header {
		1757	my ($self) = @_;
		1758
		1759	if ($self->load_header_temp) {
		1760	$self->prepare_temp;
		1761	} else {
		1762	$self->load_header_orig
1169	or return;	1763	or return;
		1764	$self->prepare_orig;
		1765	}
1170		1766
1171	$map->load_header ($path)	1767	$self->{deny_reset} = 1
1172	or return;	1768	if $self->no_reset;
1173		1769
1174	$map->{load_path} = $path;	1770	$self->default_region (cf::region::find_by_path $self->{path})
		1771	unless $self->default_region;
1175		1772
1176	$map	1773	1
1177	}	1774	}
1178		1775
		1776	sub find;
1179	sub find_map {	1777	sub find {
1180	my ($path, $origin) = @_;	1778	my ($path, $origin) = @_;
1181		1779
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1780	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1781
1187	cf::lock_wait "map_find:$key";	1782	cf::lock_wait "map_find:$path";
1188		1783
1189	$cf::MAP{$key} || do {	1784	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1785	my $guard = cf::lock_acquire "map_find:$path";
1191		1786	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1787	or return;
1207		1788
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1790
1221	if ($map->should_reset) {	1791	$map->load_header
		1792	or return;
		1793
		1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1795	# doing this can freeze the server in a sync job, obviously
		1796	#$cf::WAIT_FOR_TICK->wait;
1222	$map->reset;	1797	$map->reset;
1223	$map = find_map $path;	1798	undef $guard;
		1799	return find $path;
1224	}	1800	}
1225		1801
1226	$cf::MAP{$key} = $map	1802	$cf::MAP{$path} = $map
1227	}	1803	}
1228	}	1804	}
		1805
		1806	sub pre_load { }
		1807	sub post_load { }
1229		1808
1230	sub load {	1809	sub load {
1231	my ($self) = @_;	1810	my ($self) = @_;
1232		1811
		1812	local $self->{deny_reset} = 1; # loading can take a long time
		1813
1233	my $path = $self->{path};	1814	my $path = $self->{path};
		1815
		1816	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1817	my $guard = cf::lock_acquire "map_load:$path";
1235		1818
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1819	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1820
1238	$self->in_memory (cf::MAP_LOADING);	1821	$self->in_memory (cf::MAP_LOADING);
1239		1822
1240	$self->alloc;	1823	$self->alloc;
		1824
		1825	$self->pre_load;
		1826	Coro::cede;
		1827
1241	$self->load_objects ($self->{load_path}, 1)	1828	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1829	or return;
1243		1830
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1831	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1832	if delete $self->{load_original};
1246		1833
1247	if (my $uniq = $path->uniq_path) {	1834	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1835	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1836	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1837	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1838	$self->_load_objects ($uniq, 0);
1252	}	1839	}
1253	}	1840	}
1254		1841
		1842	Coro::cede;
1255	# now do the right thing for maps	1843	# now do the right thing for maps
1256	$self->link_multipart_objects;	1844	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1845	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	1846	unless $self->difficulty;
		1847	Coro::cede;
		1848
		1849	unless ($self->{deny_activate}) {
		1850	$self->decay_objects;
		1851	$self->fix_auto_apply;
		1852	$self->update_buttons;
		1853	Coro::cede;
		1854	$self->set_darkness_map;
		1855	Coro::cede;
1268	$self->activate;	1856	$self->activate;
1269	}	1857	}
1270		1858
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1859	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1860	}
1273		1861
1274	sub load_map_sync {	1862	$self->post_load;
		1863	}
		1864
		1865	sub customise_for {
		1866	my ($self, $ob) = @_;
		1867
		1868	return find "~" . $ob->name . "/" . $self->{path}
		1869	if $self->per_player;
		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
		1874	$self
		1875	}
		1876
		1877	# find and load all maps in the 3x3 area around a map
		1878	sub load_diag {
		1879	my ($map) = @_;
		1880
		1881	my @diag; # diagonal neighbours
		1882
		1883	for (0 .. 3) {
		1884	my $neigh = $map->tile_path ($_)
		1885	or next;
		1886	$neigh = find $neigh, $map
		1887	or next;
		1888	$neigh->load;
		1889
		1890	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1891	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1892	}
		1893
		1894	for (@diag) {
		1895	my $neigh = find @$_
		1896	or next;
		1897	$neigh->load;
		1898	}
		1899	}
		1900
		1901	sub find_sync {
1275	my ($path, $origin) = @_;	1902	my ($path, $origin) = @_;
1276		1903
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1904	cf::sync_job { find $path, $origin }
		1905	}
1278		1906
1279	cf::sync_job {	1907	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1908	my ($map) = @_;
1281	or return;	1909
		1910	cf::sync_job { $map->load };
		1911	}
		1912
		1913	our %MAP_PREFETCH;
		1914	our $MAP_PREFETCHER = undef;
		1915
		1916	sub find_async {
		1917	my ($path, $origin) = @_;
		1918
		1919	$path = normalise $path, $origin && $origin->{path};
		1920
		1921	if (my $map = $cf::MAP{$path}) {
		1922	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1923	}
		1924
		1925	undef $MAP_PREFETCH{$path};
		1926	$MAP_PREFETCHER ||= cf::async {
		1927	while (%MAP_PREFETCH) {
		1928	for my $path (keys %MAP_PREFETCH) {
		1929	if (my $map = find $path) {
1282	$map->load;	1930	$map->load;
1283	$map	1931	}
		1932
		1933	delete $MAP_PREFETCH{$path};
		1934	}
		1935	}
		1936	undef $MAP_PREFETCHER;
1284	}	1937	};
		1938	$MAP_PREFETCHER->prio (6);
		1939
		1940	()
1285	}	1941	}
1286		1942
1287	sub save {	1943	sub save {
1288	my ($self) = @_;	1944	my ($self) = @_;
1289		1945
		1946	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1947
1290	$self->{last_save} = $cf::RUNTIME;	1948	$self->{last_save} = $cf::RUNTIME;
1291		1949
1292	return unless $self->dirty;	1950	return unless $self->dirty;
1293		1951
1294	my $save = $self->{path}->save_path; utf8::encode $save;	1952	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1953	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		1954
1297	$self->{load_path} = $save;	1955	$self->{load_path} = $save;
1298		1956
1299	return if $self->{deny_save};	1957	return if $self->{deny_save};
1300		1958
		1959	local $self->{last_access} = $self->last_access;#d#
		1960
		1961	cf::async {
		1962	$_->contr->save for $self->players;
		1963	};
		1964
1301	if ($uniq) {	1965	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1966	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	1967	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	1968	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1969	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	1970	}
1307	}	1971	}
1308		1972
1309	sub swap_out {	1973	sub swap_out {
1310	my ($self) = @_;	1974	my ($self) = @_;
		1975
		1976	# save first because save cedes
		1977	$self->save;
		1978
		1979	my $lock = cf::lock_acquire "map_data:" . $self->path;
1311		1980
1312	return if $self->players;	1981	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	1982	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	1983	return if $self->{deny_save};
1315		1984
1316	$self->save;
1317	$self->clear;	1985	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	1986	$self->in_memory (cf::MAP_SWAPPED);
1319	}	1987	}
1320		1988
1321	sub reset_at {	1989	sub reset_at {
1322	my ($self) = @_;	1990	my ($self) = @_;
1323		1991
1324	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1327		1994
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		1997
…		…
1335	my ($self) = @_;	2002	my ($self) = @_;
1336		2003
1337	$self->reset_at <= $cf::RUNTIME	2004	$self->reset_at <= $cf::RUNTIME
1338	}	2005	}
1339		2006
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2007	sub reset {
1362	my ($self) = @_;	2008	my ($self) = @_;
1363		2009
		2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2011
1364	return if $self->players;	2012	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2013
1367	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
		2015
		2016	$self->in_memory (cf::MAP_SWAPPED);
		2017
		2018	# need to save uniques path
		2019	unless ($self->{deny_save}) {
		2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2021
		2022	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2023	if $uniq;
		2024	}
1368		2025
1369	delete $cf::MAP{$self->path};	2026	delete $cf::MAP{$self->path};
		2027
		2028	$self->clear;
1370		2029
1371	$_->clear_links_to ($self) for values %cf::MAP;	2030	$_->clear_links_to ($self) for values %cf::MAP;
1372		2031
1373	$self->unlink_save;	2032	$self->unlink_save;
1374	$self->destroy;	2033	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	2036	my $nuke_counter = "aaaa";
1378		2037
1379	sub nuke {	2038	sub nuke {
1380	my ($self) = @_;	2039	my ($self) = @_;
1381		2040
		2041	delete $cf::MAP{$self->path};
		2042
		2043	$self->unlink_save;
		2044
		2045	bless $self, "cf::map";
		2046	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2047	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2048	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2049	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2050
		2051	$cf::MAP{$self->path} = $self;
		2052
1385	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1386	}	2054	}
1387		2055
1388	sub customise_for {	2056	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2057
1391	if ($map->per_player) {	2058	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
1393	}	2064	[
1394		2065	map {
1395	$map	2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
1396	}	2072	}
1397		2073
1398	sub emergency_save {	2074	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2075
1401	warn "enter emergency map save\n";	2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
1402		2078
1403	cf::sync_job {	2079	=cut
1404	warn "begin emergency map save\n";
1405	$_->save for values %cf::MAP;
1406	};
1407		2080
1408	warn "end emergency map save\n";	2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
		2092	=item cf::map::unique_maps
		2093
		2094	Returns an arrayref of paths of all shared maps that have
		2095	instantiated unique items. May block.
		2096
		2097	=cut
		2098
		2099	sub unique_maps() {
		2100	[
		2101	map {
		2102	utf8::decode $_;
		2103	/\.map$/
		2104	? normalise $_
		2105	: ()
		2106	} @{ aio_readdir $UNIQUEDIR or [] }
		2107	]
1409	}	2108	}
1410		2109
1411	package cf;	2110	package cf;
1412		2111
1413	=back	2112	=back
1414		2113
		2114	=head3 cf::object
		2115
		2116	=cut
		2117
		2118	package cf::object;
		2119
		2120	=over 4
		2121
		2122	=item $ob->inv_recursive
		2123
		2124	Returns the inventory of the object _and_ their inventories, recursively.
		2125
		2126	=cut
		2127
		2128	sub inv_recursive_;
		2129	sub inv_recursive_ {
		2130	map { $_, inv_recursive_ $_->inv } @_
		2131	}
		2132
		2133	sub inv_recursive {
		2134	inv_recursive_ inv $_[0]
		2135	}
		2136
		2137	package cf;
		2138
		2139	=back
1415		2140
1416	=head3 cf::object::player	2141	=head3 cf::object::player
1417		2142
1418	=over 4	2143	=over 4
1419		2144
…		…
1433		2158
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2160
1436	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1438	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1441	}	2180	}
1442	}	2181	}
1443		2182
1444	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1445		2184
…		…
1459		2198
1460	=item $player_object->enter_link	2199	=item $player_object->enter_link
1461		2200
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2201	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2202
1464	The player should be reaosnably safe there for short amounts of time. You	2203	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	2204	I<MUST> call C<leave_link> as soon as possible, though.
1466		2205
		2206	Will never block.
		2207
1467	=item $player_object->leave_link ($map, $x, $y)	2208	=item $player_object->leave_link ($map, $x, $y)
1468		2209
1469	Moves the player out of the specila link map onto the given map. If the	2210	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2211	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2212	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2213	fails, to the emergency map position.
1473		2214
1474	Might block.	2215	Might block.
1475		2216
1476	=cut	2217	=cut
		2218
		2219	sub link_map {
		2220	unless ($LINK_MAP) {
		2221	$LINK_MAP = cf::map::find "{link}"
		2222	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2223	$LINK_MAP->load;
		2224	}
		2225
		2226	$LINK_MAP
		2227	}
1477		2228
1478	sub cf::object::player::enter_link {	2229	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2230	my ($self) = @_;
1480		2231
1481	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
1482		2233
1483	return if $self->map == $LINK_MAP;	2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2235
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2237	if $self->map && $self->map->{path} ne "{link}";
1487		2238
1488	$self->enter_map ($LINK_MAP, 20, 20);	2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2240	}
1490		2241
1491	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1493		2246
1494	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1495		2248
1496	unless ($map) {	2249	unless ($map) {
1497	# restore original map position	2250	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2251	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2252	$map = cf::map::find $map;
1500		2253
1501	unless ($map) {	2254	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2255	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2256	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2257	or die "FATAL: cannot load emergency map\n";
1505	}	2258	}
1506	}	2259	}
1507		2260
1508	($x, $y) = (-1, -1)	2261	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2264	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2265	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2266	if $x <=0 && $y <= 0;
1514		2267
1515	$map->load;	2268	$map->load;
		2269	$map->load_diag;
1516		2270
		2271	return unless $self->contr->active;
1517	$self->activate_recursive;	2272	$self->activate_recursive;
		2273
		2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1519	}	2276	}
1520		2277
1521	cf::player->attach (	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2279
1525	# abort map switching before logout	2280	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2281	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2282	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2283	the new (success) or old (failed) map position. In either case, $done will
1529	};	2284	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2285
1535	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2286	=cut
1552		2287
		2288	our $GOTOGEN;
		2289
1553	sub cf::object::player::goto_map {	2290	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2295
1556	$self->enter_link;	2296	$self->enter_link;
1557		2297
1558	(Coro::async {	2298	(async {
1559	$path = new cf::path $path;	2299	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2303	$map = $map->customise_for ($self);
1563		2304	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2305	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
1568		2308
		2309	$map
		2310	};
		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
		2315	}
		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1570	})->prio (1);	2323	})->prio (1);
1571	}	2324	}
1572		2325
1573	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1574		2327
…		…
1576		2329
1577	sub parse_random_map_params {	2330	sub parse_random_map_params {
1578	my ($spec) = @_;	2331	my ($spec) = @_;
1579		2332
1580	my $rmp = { # defaults	2333	my $rmp = { # defaults
1581	xsize => 10,	2334	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2335	ysize => (cf::rndm 15, 40),
		2336	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2337	#layout => string,
1583	};	2338	};
1584		2339
1585	for (split /\n/, $spec) {	2340	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2341	my ($k, $v) = split /\s+/, $_, 2;
1587		2342
…		…
1591	$rmp	2346	$rmp
1592	}	2347	}
1593		2348
1594	sub prepare_random_map {	2349	sub prepare_random_map {
1595	my ($exit) = @_;	2350	my ($exit) = @_;
		2351
		2352	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2353
1597	# all this does is basically replace the /! path by	2354	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2355	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2356	# that depends on the exit object
1600		2357
1601	my $rmp = parse_random_map_params $exit->msg;	2358	my $rmp = parse_random_map_params $exit->msg;
1602		2359
1603	if ($exit->map) {	2360	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2361	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2362	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2363	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2364	$rmp->{origin_y} = $exit->y;
1608	}	2365	}
1609		2366
1610	$rmp->{random_seed} ||= $exit->random_seed;	2367	$rmp->{random_seed} ||= $exit->random_seed;
1611		2368
1612	my $data = cf::to_json $rmp;	2369	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2370	my $md5 = Digest::MD5::md5_hex $data;
		2371	my $meta = "$RANDOMDIR/$md5.meta";
1614		2372
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2373	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2374	aio_write $fh, 0, (length $data), $data, 0;
		2375	undef $fh;
		2376	aio_rename "$meta~", $meta;
1617		2377
1618	$exit->slaying ("?random/$md5");	2378	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2379	$exit->msg (undef);
1620	}	2380	}
1621	}	2381	}
…		…
1623	sub cf::object::player::enter_exit {	2383	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2384	my ($self, $exit) = @_;
1625		2385
1626	return unless $self->type == cf::PLAYER;	2386	return unless $self->type == cf::PLAYER;
1627		2387
		2388	if ($exit->slaying eq "/!") {
		2389	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2390	# the problem is that $exit might not survive long enough
		2391	# so it needs to be done right now, right here
		2392	cf::sync_job { prepare_random_map $exit };
		2393	}
		2394
		2395	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2396	my $hp = $exit->stats->hp;
		2397	my $sp = $exit->stats->sp;
		2398
1628	$self->enter_link;	2399	$self->enter_link;
1629		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
		2404
1630	(Coro::async {	2405	(async {
		2406	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2407	unless (eval {
1632		2408	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2409
1639	1;	2410	1;
1640	}) {	2411	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2412	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2413	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2414	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2415	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2416
1646	warn "ERROR in enter_exit: $@";	2417	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2418	$self->leave_link;
1648	}	2419	}
1649	})->prio (1);	2420	})->prio (1);
…		…
1662		2433
1663	sub cf::client::send_drawinfo {	2434	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2435	my ($self, $text, $flags) = @_;
1665		2436
1666	utf8::encode $text;	2437	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2439	}
1669		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	$color &= ~cf::NDI_UNIQUE; # just in case...
		2456
		2457	if (ref $channel) {
		2458	# send meta info to client, if not yet sent
		2459	unless (exists $self->{channel}{$channel->{id}}) {
		2460	$self->{channel}{$channel->{id}} = $channel;
		2461	$self->ext_event (channel_info => %$channel);
		2462	}
		2463
		2464	$channel = $channel->{id};
		2465	}
		2466
		2467	return unless @extra || length $msg;
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
		2493	=item $client->ext_event ($type, %msg)
		2494
		2495	Sends an ext event to the client.
		2496
		2497	=cut
		2498
		2499	sub cf::client::ext_event($$%) {
		2500	my ($self, $type, %msg) = @_;
		2501
		2502	return unless $self->extcmd;
		2503
		2504	$msg{msgtype} = "event_$type";
		2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2506	}
1670		2507
1671	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
1672		2509
1673	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		2513
1677	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	2515	become reliable at some point in the future.
1679		2516
1680	=cut	2517	=cut
1681		2518
1682	sub cf::client::query {	2519	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	2528	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		2530
1694	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
1696	}	2535	}
1697		2536
1698	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
1699	on_reply => sub {	2543	on_reply => sub {
1700	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
1701		2545
1702	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
1703	# get handled first	2547	# get handled first
1704	my $queue = delete $ns->{query_queue};	2548	my $queue = delete $ns->{query_queue}
		2549	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2550
1706	(shift @$queue)->[1]->($msg);	2551	(shift @$queue)->[1]->($msg);
		2552	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2553
1708	push @{ $ns->{query_queue} }, @$queue;	2554	push @{ $ns->{query_queue} }, @$queue;
1709		2555
1710	if (@{ $ns->{query_queue} } == @$queue) {	2556	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2557	if (@$queue) {
…		…
1713	} else {	2559	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	2561	}
1716	}	2562	}
1717	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
1718	);	2582	);
1719		2583
1720	=item $client->coro (\&cb)	2584	=item $client->async (\&cb)
1721		2585
1722	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2587	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2588	or loss of connection).
1725		2589
1726	=cut	2590	=cut
1727		2591
1728	sub cf::client::coro {	2592	sub cf::client::async {
1729	my ($self, $cb) = @_;	2593	my ($self, $cb) = @_;
1730		2594
1731	my $coro; $coro = async {	2595	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2596
1738	$coro->on_destroy (sub {	2597	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2598	delete $self->{_coro}{$coro+0};
1740	});	2599	});
1741		2600
…		…
1774		2633
1775	# here we export the classes and methods available to script code	2634	# here we export the classes and methods available to script code
1776		2635
1777	=pod	2636	=pod
1778		2637
1779	The following fucntions and emthods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
1780		2639
1781	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
1782	cf::object::player player	2644	cf::object::player
1783	cf::player peaceful	2645	player
1784	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
1785		2652
1786	=cut	2653	=cut
1787		2654
1788	for (	2655	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
1790	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
1792	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
1793	) {	2661	) {
1794	no strict 'refs';	2662	no strict 'refs';
…		…
1865	=back	2733	=back
1866		2734
1867	=cut	2735	=cut
1868		2736
1869	#############################################################################	2737	#############################################################################
		2738	# the server's init and main functions
1870		2739
1871	=head2 EXTENSION DATABASE SUPPORT	2740	sub load_facedata($) {
		2741	my ($path) = @_;
1872		2742
1873	Crossfire maintains a very simple database for extension use. It can	2743	warn "loading facedata from $path\n";
1874	currently store anything that can be serialised using Storable, which
1875	excludes objects.
1876		2744
1877	The parameter C<$family> should best start with the name of the extension	2745	my $facedata;
1878	using it, it should be unique.	2746	0 < aio_load $path, $facedata
		2747	or die "$path: $!";
1879		2748
1880	=over 4	2749	$facedata = Coro::Storable::thaw $facedata;
1881		2750
1882	=item $hashref = cf::db_get $family	2751	$facedata->{version} == 2
		2752	or cf::cleanup "$path: version mismatch, cannot proceed.";
1883		2753
1884	Return a hashref for use by the extension C<$family>, which can be
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887
1888	=item $value = cf::db_get $family => $key
1889
1890	Returns a single value from the database
1891
1892	=item cf::db_put $family => $hashref
1893
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}	2754	{
		2755	my $faces = $facedata->{faceinfo};
1920		2756
1921	my $pid;	2757	while (my ($face, $info) = each %$faces) {
		2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
		2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1922		2763
1923	sub db_save() {	2764	cf::cede_to_tick;
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});
1943
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}
1948
1949	sub db_get($;$) {
1950	@_ >= 2
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954
1955	sub db_put($$;$) {
1956	if (@_ >= 3) {
1957	$DB->{$_[0]}{$_[1]} = $_[2];
1958	} else {
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963
1964	cf::global->attach (
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	2765	}
1969	);
1970	}
1971		2766
1972	#############################################################################	2767	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	2768	next unless $info->{smooth};
		2769	my $idx = cf::face::find $face
		2770	or next;
		2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
		2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2774	} else {
		2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2776	}
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	{
		2783	my $anims = $facedata->{animinfo};
		2784
		2785	while (my ($anim, $info) = each %$anims) {
		2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2787	cf::cede_to_tick;
		2788	}
		2789
		2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
		2821	}
		2822
		2823	1
		2824	}
		2825
		2826	sub reload_regions {
		2827	load_resource_file "$MAPDIR/regions"
		2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
		2834	}
		2835
		2836	sub reload_facedata {
		2837	load_facedata "$DATADIR/facedata"
		2838	or die "unable to load facedata\n";
		2839	}
		2840
		2841	sub reload_archetypes {
		2842	load_resource_file "$DATADIR/archetypes"
		2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
		2849	}
		2850
		2851	sub reload_treasures {
		2852	load_resource_file "$DATADIR/treasures"
		2853	or die "unable to load treasurelists\n";
		2854	}
		2855
		2856	sub reload_resources {
		2857	warn "reloading resource files...\n";
		2858
		2859	reload_regions;
		2860	reload_facedata;
		2861	#reload_archetypes;#d#
		2862	reload_archetypes;
		2863	reload_treasures;
		2864
		2865	warn "finished reloading resource files\n";
		2866	}
		2867
		2868	sub init {
		2869	reload_resources;
		2870	}
1974		2871
1975	sub cfg_load {	2872	sub cfg_load {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	2873	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	2874	or return;
1978		2875
1979	local $/;	2876	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	2877	*CFG = YAML::Syck::Load <$fh>;
		2878
		2879	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2880
		2881	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2882	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2883
		2884	if (exists $CFG{mlockall}) {
		2885	eval {
		2886	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2887	and die "WARNING: m(un)lockall failed: $!\n";
		2888	};
		2889	warn $@ if $@;
		2890	}
1981	}	2891	}
1982		2892
1983	sub main {	2893	sub main {
1984	# we must not ever block the main coroutine	2894	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	2895	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2896	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	2897	(async {
1988	Event::one_event;	2898	Event::one_event;
1989	})->();	2899	})->prio (Coro::PRIO_MAX);
1990	};	2900	};
1991		2901
1992	cfg_load;	2902	cfg_load;
1993	db_load;	2903	db_init;
1994	load_extensions;	2904	load_extensions;
		2905
		2906	$TICK_WATCHER->start;
1995	Event::loop;	2907	Event::loop;
1996	}	2908	}
1997		2909
1998	#############################################################################	2910	#############################################################################
1999	# initialisation	2911	# initialisation and cleanup
2000		2912
		2913	# install some emergency cleanup handlers
		2914	BEGIN {
		2915	for my $signal (qw(INT HUP TERM)) {
		2916	Event->signal (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	signal => $signal,
		2920	prio => 0,
		2921	cb => sub {
		2922	cf::cleanup "SIG$signal";
		2923	},
		2924	);
		2925	}
		2926	}
		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
		2966	sub emergency_save() {
		2967	my $freeze_guard = cf::freeze_mainloop;
		2968
		2969	warn "enter emergency perl save\n";
		2970
		2971	cf::sync_job {
		2972	# use a peculiar iteration method to avoid tripping on perl
		2973	# refcount bugs in for. also avoids problems with players
		2974	# and maps saved/destroyed asynchronously.
		2975	warn "begin emergency player save\n";
		2976	for my $login (keys %cf::PLAYER) {
		2977	my $pl = $cf::PLAYER{$login} or next;
		2978	$pl->valid or next;
		2979	$pl->save;
		2980	}
		2981	warn "end emergency player save\n";
		2982
		2983	warn "begin emergency map save\n";
		2984	for my $path (keys %cf::MAP) {
		2985	my $map = $cf::MAP{$path} or next;
		2986	$map->valid or next;
		2987	$map->save;
		2988	}
		2989	warn "end emergency map save\n";
		2990
		2991	warn "begin emergency database checkpoint\n";
		2992	BDB::db_env_txn_checkpoint $DB_ENV;
		2993	warn "end emergency database checkpoint\n";
		2994	};
		2995
		2996	warn "leave emergency perl save\n";
		2997	}
		2998
		2999	sub post_cleanup {
		3000	my ($make_core) = @_;
		3001
		3002	warn Carp::longmess "post_cleanup backtrace"
		3003	if $make_core;
		3004	}
		3005
2001	sub reload() {	3006	sub do_reload_perl() {
2002	# can/must only be called in main	3007	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3008	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3009	warn "can only reload from main coroutine";
2005	return;	3010	return;
2006	}	3011	}
2007		3012
2008	warn "reloading...";	3013	warn "reloading...";
2009		3014
2010	local $FREEZE = 1;	3015	warn "entering sync_job";
		3016
		3017	cf::sync_job {
		3018	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	3019	cf::emergency_save;
		3020	cf::write_runtime; # external watchdog should not bark
2012		3021
2013	eval {	3022	warn "syncing database to disk";
		3023	BDB::db_env_txn_checkpoint $DB_ENV;
		3024
2014	# if anything goes wrong in here, we should simply crash as we already saved	3025	# if anything goes wrong in here, we should simply crash as we already saved
2015		3026
2016	# cancel all watchers	3027	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	3028	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3029	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	3030	}
2020		3031
		3032	warn "flushing outstanding aio requests";
		3033	for (;;) {
		3034	BDB::flush;
		3035	IO::AIO::flush;
		3036	Coro::cede;
		3037	last unless IO::AIO::nreqs || BDB::nreqs;
		3038	warn "iterate...";
		3039	}
		3040
		3041	++$RELOAD;
		3042
2021	# cancel all extension coros	3043	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	3044	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	3045	%EXT_CORO = ();
2024		3046
2025	# unload all extensions	3047	warn "removing commands";
2026	for (@exts) {	3048	%COMMAND = ();
		3049
		3050	warn "removing ext/exti commands";
		3051	%EXTCMD = ();
		3052	%EXTICMD = ();
		3053
		3054	warn "unloading/nuking all extensions";
		3055	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	3056	warn "... unloading $pkg";
2028	unload_extension $_;	3057
		3058	if (my $cb = $pkg->can ("unload")) {
		3059	eval {
		3060	$cb->($pkg);
		3061	1
		3062	} or warn "$pkg unloaded, but with errors: $@";
2029	}	3063	}
2030		3064
		3065	warn "... nuking $pkg";
		3066	Symbol::delete_package $pkg;
		3067	}
		3068
2031	# unload all modules loaded from $LIBDIR	3069	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	3070	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		3072
2035	warn "removing <$k>";	3073	warn "... unloading $k";
2036	delete $INC{$k};	3074	delete $INC{$k};
2037		3075
2038	$k =~ s/\.pm$//;	3076	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	3077	$k =~ s/\//::/g;
2040		3078
…		…
2043	}	3081	}
2044		3082
2045	Symbol::delete_package $k;	3083	Symbol::delete_package $k;
2046	}	3084	}
2047		3085
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	3086	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3087	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3088	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3089
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	3090	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	3091	delete $INC{"cf.pm"};
		3092	delete $INC{"cf/pod.pm"};
2061		3093
2062	# don't, removes xs symbols, too,	3094	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3095	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3096	#Symbol::delete_package __PACKAGE__;
2065		3097
2066	# reload cf.pm	3098	warn "unload completed, starting to reload now";
		3099
2067	warn "reloading cf.pm";	3100	warn "reloading cf.pm";
2068	require cf;	3101	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3102	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		3103
2071	# load config and database again	3104	warn "loading config and database again";
2072	cf::cfg_load;	3105	cf::cfg_load;
2073	cf::db_load;
2074		3106
2075	# load extensions
2076	warn "load extensions";	3107	warn "loading extensions";
2077	cf::load_extensions;	3108	cf::load_extensions;
2078		3109
2079	# reattach attachments to objects	3110	warn "reattaching attachments to objects/players";
2080	warn "reattach";	3111	_global_reattach; # objects, sockets
2081	_global_reattach;	3112	warn "reattaching attachments to maps";
2082	};	3113	reattach $_ for values %MAP;
		3114	warn "reattaching attachments to players";
		3115	reattach $_ for values %PLAYER;
2083		3116
2084	if ($@) {	3117	warn "leaving sync_job";
		3118
		3119	1
		3120	} or do {
2085	warn $@;	3121	warn $@;
2086	warn "error while reloading, exiting.";	3122	warn "error while reloading, exiting.";
2087	exit 1;	3123	exit 1;
2088	}	3124	};
2089		3125
2090	warn "reloaded successfully";	3126	warn "reloaded";
2091	};	3127	};
2092		3128
2093	#############################################################################	3129	our $RELOAD_WATCHER; # used only during reload
2094		3130
2095	unless ($LINK_MAP) {	3131	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	3132	# doing reload synchronously and two reloads happen back-to-back,
		3133	# coro crashes during coro_state_free->destroy here.
2097		3134
2098	$LINK_MAP->width (41);	3135	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	3136	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	3137	after => 0,
		3138	data => WF_AUTOCANCEL,
2108	cb => sub {	3139	cb => sub {
2109	$_[0]->w->cancel;	3140	do_reload_perl;
2110		3141	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	3142	},
2129		3143	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3144	}
2135
2136	register "<global>", __PACKAGE__;
2137		3145
2138	register_command "reload" => sub {	3146	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3147	my ($who, $arg) = @_;
2140		3148
2141	if ($who->flag (FLAG_WIZ)) {	3149	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3150	$who->message ("reloading server.");
		3151	async { reload_perl };
2145	}	3152	}
2146	};	3153	};
2147		3154
2148	unshift @INC, $LIBDIR;	3155	unshift @INC, $LIBDIR;
2149		3156
		3157	my $bug_warning = 0;
		3158
		3159	our @WAIT_FOR_TICK;
		3160	our @WAIT_FOR_TICK_BEGIN;
		3161
		3162	sub wait_for_tick {
		3163	return unless $TICK_WATCHER->is_active;
		3164	return if $Coro::current == $Coro::main;
		3165
		3166	my $signal = new Coro::Signal;
		3167	push @WAIT_FOR_TICK, $signal;
		3168	$signal->wait;
		3169	}
		3170
		3171	sub wait_for_tick_begin {
		3172	return unless $TICK_WATCHER->is_active;
		3173	return if $Coro::current == $Coro::main;
		3174
		3175	my $signal = new Coro::Signal;
		3176	push @WAIT_FOR_TICK_BEGIN, $signal;
		3177	$signal->wait;
		3178	}
		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2150	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	3183	reentrant => 0,
		3184	parked => 1,
2152	prio => 0,	3185	prio => 0,
2153	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	3187	data => WF_AUTOCANCEL,
2155	cb => sub {	3188	cb => sub {
2156	unless ($FREEZE) {	3189	if ($Coro::current != $Coro::main) {
		3190	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3191	unless ++$bug_warning > 10;
		3192	return;
		3193	}
		3194
		3195	$NOW = $tick_start = Event::time;
		3196
2157	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;	3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2159	}	3220	};
2160		3221
		3222	$RUNTIME += $TICK;
2161	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2162		3224
		3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3226	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3227	Coro::async_pool {
		3228	write_runtime
		3229	or warn "ERROR: unable to write runtime file: $!";
		3230	};
		3231	}
		3232
		3233	# my $AFTER = Event::time;
		3234	# warn $AFTER - $NOW;#d#
		3235
		3236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3237	$sig->send;
		3238	}
		3239	while (my $sig = shift @WAIT_FOR_TICK) {
		3240	$sig->send;
		3241	}
		3242
		3243	$NOW = Event::time;
		3244
2163	# if we are delayed by four ticks or more, skip them all	3245	# if we are delayed by four ticks or more, skip them all
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3246	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		3247
2166	$TICK_WATCHER->at ($NEXT_TICK);	3248	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;	3249	$TICK_WATCHER->start;
		3250
		3251	$LOAD = ($NOW - $tick_start) / $TICK;
		3252	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3253
		3254	_post_tick;
		3255
		3256
2168	},	3257	},
2169	);	3258	);
2170		3259
		3260	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	3261	BDB::max_poll_time $TICK * 0.1;
2172		3262	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	3263	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	3264	fd => BDB::poll_fileno,
2175	poll => 'r',	3265	poll => 'r',
2176	prio => 5,	3266	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	3267	data => WF_AUTOCANCEL,
2183	after => 0,	3268	cb => \&BDB::poll_cb,
2184	interval => 10,	3269	);
2185	cb => sub {	3270	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	3271
2187	write_runtime	3272	BDB::set_sync_prepare {
2188	or warn "ERROR: unable to write runtime file: $!";	3273	my $status;
		3274	my $current = $Coro::current;
		3275	(
		3276	sub {
		3277	$status = $!;
		3278	$current->ready; undef $current;
		3279	},
		3280	sub {
		3281	Coro::schedule while defined $current;
		3282	$! = $status;
		3283	},
		3284	)
		3285	};
		3286
		3287	unless ($DB_ENV) {
		3288	$DB_ENV = BDB::db_env_create;
		3289
		3290	cf::sync_job {
		3291	eval {
		3292	BDB::db_env_open
		3293	$DB_ENV,
		3294	$BDBDIR,
		3295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3297	0666;
		3298
		3299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3300
		3301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3302	$DB_ENV->set_lk_detect;
		3303	};
		3304
		3305	cf::cleanup "db_env_open(db): $@" if $@;
2189	})->();	3306	};
2190	},	3307	}
2191	);	3308	}
		3309
		3310	{
		3311	IO::AIO::min_parallel 8;
		3312
		3313	undef $Coro::AIO::WATCHER;
		3314	IO::AIO::max_poll_time $TICK * 0.1;
		3315	$AIO_POLL_WATCHER = Event->io (
		3316	reentrant => 0,
		3317	data => WF_AUTOCANCEL,
		3318	fd => IO::AIO::poll_fileno,
		3319	poll => 'r',
		3320	prio => 6,
		3321	cb => \&IO::AIO::poll_cb,
		3322	);
		3323	}
		3324
		3325	my $_log_backtrace;
		3326
		3327	sub _log_backtrace {
		3328	my ($msg, @addr) = @_;
		3329
		3330	$msg =~ s/\n//;
		3331
		3332	# limit the # of concurrent backtraces
		3333	if ($_log_backtrace < 2) {
		3334	++$_log_backtrace;
		3335	async {
		3336	my @bt = fork_call {
		3337	@addr = map { sprintf "%x", $_ } @addr;
		3338	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3339	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3340	or die "addr2line: $!";
		3341
		3342	my @funcs;
		3343	my @res = <$fh>;
		3344	chomp for @res;
		3345	while (@res) {
		3346	my ($func, $line) = splice @res, 0, 2, ();
		3347	push @funcs, "[$func] $line";
		3348	}
		3349
		3350	@funcs
		3351	};
		3352
		3353	LOG llevInfo, "[ABT] $msg\n";
		3354	LOG llevInfo, "[ABT] $_\n" for @bt;
		3355	--$_log_backtrace;
		3356	};
		3357	} else {
		3358	LOG llevInfo, "[ABT] $msg\n";
		3359	LOG llevInfo, "[ABT] [suppressed]\n";
		3360	}
		3361	}
		3362
		3363	# load additional modules
		3364	use cf::pod;
		3365
		3366	END { cf::emergency_save }
2192		3367
2193	1	3368	1
2194		3369

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