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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.127 by root, Wed Jan 3 00:05:26 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 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;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	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		254
186	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
187		256	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		257
208	=item cf::lock_wait $string	258	=item cf::lock_wait $string
209		259
210	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
211		261
212	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
213		263
214	Wait until the given lock is available and then acquires it and returns	264	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,	265	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	266	for example when the coroutine gets canceled), the lock is automatically
217	returned.	267	returned.
218		268
219	Lock names should begin with a unique identifier (for example, find_map	269	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
221		275
222	=cut	276	=cut
223		277
224	our %LOCK;	278	our %LOCK;
225		279
…		…
239	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
240	lock_wait $key;	294	lock_wait $key;
241		295
242	$LOCK{$key} = [];	296	$LOCK{$key} = [];
243		297
244	cf::guard {	298	Coro::guard {
245	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
247	}	301	}
248	}	302	}
249		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
250	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
251		321
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	322	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
254		325
255	=cut	326	=cut
256		327
257	sub async(&) {	328	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		329
266	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
267		331
268	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
271		336
272	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
275	fast or be very important.	340	fast or be very important.
…		…
278		343
279	sub sync_job(&) {	344	sub sync_job(&) {
280	my ($job) = @_;	345	my ($job) = @_;
281		346
282	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
283	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
285		352
286	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	354	# (but this is cancel-safe)
288	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
289		356
290	my $busy = 1;	357	my $busy = 1;
291	my @res;	358	my @res;
292		359
293	(Coro::async {	360	(async {
294	@res = eval { $job->() };	361	@res = eval { $job->() };
295	warn $@ if $@;	362	warn $@ if $@;
296	undef $busy;	363	undef $busy;
297	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
298		365
299	while ($busy) {	366	while ($busy) {
300	Coro::cede_notself;	367	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
303		376
304	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
305	} else {	378	} else {
306	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
307		380
308	$job->()	381	$job->()
309	}	382	}
310	}	383	}
311		384
312	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
313		386
314	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
316		389
317	=cut	390	=cut
318		391
319	sub coro(&) {	392	sub async_ext(&) {
320	my $cb = shift;	393	my $cb = shift;
321		394
322	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
323		396
324	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
326	});	399	});
327	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
328		401
329	$coro	402	$coro
330	}	403	}
331		404
332	sub write_runtime {	405	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		406
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
336	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
337		411
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		413
342	aio_fsync $fh	414	sub _store_scalar {
343	and return;	415	open my $fh, ">", \my $buf
344		416	or die "fork_call: cannot open fh-to-buf in child : $!";
		417	Storable::store_fd $_[0], $fh;
345	close $fh	418	close $fh;
346	or return;
347		419
348	aio_rename "$runtime~", $runtime	420	$buf
349	and return;	421	}
350		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
351	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	592	}
353		593
354	=back	594	=back
355		595
356	=cut	596	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		597
478	#############################################################################	598	#############################################################################
479		599
480	=head2 ATTACHABLE OBJECTS	600	=head2 ATTACHABLE OBJECTS
481		601
…		…
483	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
485		605
486	In the following description, CLASS can be any of C<global>, C<object>	606	In the following description, CLASS can be any of C<global>, C<object>
487	C<player>, C<client> or C<map> (i.e. the attachable objects in	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	608	Crossfire TRT).
489		609
490	=over 4	610	=over 4
491		611
492	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
493		613
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	727	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	728	our @CB_MAP = ();
609		729
610	my %attachment;	730	my %attachment;
611		731
		732	sub cf::attachable::thawer_merge {
		733	# simply override everything except _meta
		734	local $_[0]{_meta};
		735	%{$_[0]} = %{$_[1]};
		736	}
		737
612	sub _attach_cb($$$$) {	738	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	739	my ($registry, $event, $prio, $cb) = @_;
614		740
615	use sort 'stable';	741	use sort 'stable';
616		742
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
651		777
652	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		782
657	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	784	my $pkg = shift @arg;
659		785
660	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
690	}	816	}
691		817
692	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
693	} else {	819	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	821	}
696		822
697	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
698	}	824	}
699		825
…		…
701	if (ref $_[0]) {	827	if (ref $_[0]) {
702	_object_attach @_;	828	_object_attach @_;
703	} else {	829	} else {
704	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
705	}	831	}
		832	_recalc_want;
706	};	833	};
707		834
708	# all those should be optimised	835	# all those should be optimised
709	sub cf::attachable::detach {	836	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
714	reattach ($obj);	841	reattach ($obj);
715	} else {	842	} else {
716	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
717	}	844	}
		845	_recalc_want;
718	};	846	};
719		847
720	sub cf::attachable::attached {	848	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
722		850
…		…
787	# object support	915	# object support
788		916
789	sub reattach {	917	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	918	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	919	my ($obj) = @_;
		920
		921	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		922
793	my $registry = $obj->registry;	923	my $registry = $obj->registry;
794		924
795	@$registry = ();	925	@$registry = ();
796		926
…		…
843	$filename, length $$rdata, scalar @$objs;	973	$filename, length $$rdata, scalar @$objs;
844		974
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	975	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	976	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	977	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	978	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	979	close $fh;
850		980
851	if (@$objs) {	981	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	984	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	985	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	986	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	987	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	988	aio_rename "$filename.pst~", "$filename.pst";
859	}	989	}
860	} else {	990	} else {
861	aio_unlink "$filename.pst";	991	aio_unlink "$filename.pst";
…		…
893	or return;	1023	or return;
894	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
895	}	1025	}
896		1026
897	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
899	return ($data, $av);	1029	return ($data, $av);
900	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
901		1037
902	#############################################################################	1038	#############################################################################
903	# command handling &c	1039	# command handling &c
904		1040
905	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1055	}
920		1056
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1058
923	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
924		1064
925	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
926	called.	1066	called.
927		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
928	=cut	1079	=cut
929		1080
930	sub register_extcmd {	1081	sub register_extcmd {
931	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
932		1083
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
937	}	1091	}
938		1092
939	cf::player->attach (	1093	cf::player->attach (
940	on_command => sub {	1094	on_command => sub {
941	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1104	cf::override;
951	},	1105	},
952	on_extcmd => sub {	1106	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
954		1108
955	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1110
957	if (ref $msg) {	1111	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	1115	}
962	}	1116	}
963	} else {	1117	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1118	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		1120
967	cf::override;	1121	cf::override;
968	},	1122	},
969	);	1123	);
970		1124
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
		1129	for my $path (<$LIBDIR/*.ext>) {
		1130	next unless -r $path;
		1131
		1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
		1189	}
		1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
		1195	};
		1196	}
		1197
		1198	#############################################################################
		1199
		1200	=back
		1201
		1202	=head2 CORE EXTENSIONS
		1203
		1204	Functions and methods that extend core crossfire objects.
		1205
		1206	=cut
		1207
		1208	package cf::player;
		1209
		1210	use Coro::AIO;
		1211
		1212	=head3 cf::player
		1213
		1214	=over 4
		1215
		1216	=item cf::player::find $login
		1217
		1218	Returns the given player object, loading it if necessary (might block).
		1219
		1220	=cut
		1221
		1222	sub playerdir($) {
		1223	"$PLAYERDIR/"
		1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1225	}
		1226
		1227	sub path($) {
		1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1229
		1230	(playerdir $login) . "/playerdata"
		1231	}
		1232
		1233	sub find_active($) {
		1234	$cf::PLAYER{$_[0]}
		1235	and $cf::PLAYER{$_[0]}->active
		1236	and $cf::PLAYER{$_[0]}
		1237	}
		1238
		1239	sub exists($) {
		1240	my ($login) = @_;
		1241
		1242	$cf::PLAYER{$login}
		1243	or cf::sync_job { !aio_stat path $login }
		1244	}
		1245
		1246	sub find($) {
		1247	return $cf::PLAYER{$_[0]} || do {
		1248	my $login = $_[0];
		1249
		1250	my $guard = cf::lock_acquire "user_find:$login";
		1251
		1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
		1260	my $pl = load_pl path $login
		1261	or return;
		1262	$cf::PLAYER{$login} = $pl
		1263	}
		1264	}
		1265	}
		1266
		1267	sub save($) {
		1268	my ($pl) = @_;
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	my $path = path $pl;
		1273	my $guard = cf::lock_acquire "user_save:$path";
		1274
		1275	return if $pl->{deny_save};
		1276
		1277	aio_mkdir playerdir $pl, 0770;
		1278	$pl->{last_save} = $cf::RUNTIME;
		1279
		1280	$pl->save_pl ($path);
		1281	Coro::cede;
		1282	}
		1283
		1284	sub new($) {
		1285	my ($login) = @_;
		1286
		1287	my $self = create;
		1288
		1289	$self->ob->name ($login);
		1290	$self->{deny_save} = 1;
		1291
		1292	$cf::PLAYER{$login} = $self;
		1293
		1294	$self
		1295	}
		1296
		1297	=item $pl->quit_character
		1298
		1299	Nukes the player without looking back. If logged in, the connection will
		1300	be destroyed. May block for a long time.
		1301
		1302	=cut
		1303
		1304	sub quit_character {
		1305	my ($pl) = @_;
		1306
		1307	my $name = $pl->ob->name;
		1308
		1309	$pl->{deny_save} = 1;
		1310	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1311
		1312	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1313	$pl->deactivate;
		1314	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1315	$pl->ns->destroy if $pl->ns;
		1316
		1317	my $path = playerdir $pl;
		1318	my $temp = "$path~$cf::RUNTIME~deleting~";
		1319	aio_rename $path, $temp;
		1320	delete $cf::PLAYER{$pl->ob->name};
		1321	$pl->destroy;
		1322
		1323	my $prefix = qr<^~\Q$name\E/>;
		1324
		1325	# nuke player maps
		1326	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1327
		1328	IO::AIO::aio_rmtree $temp;
		1329	}
		1330
		1331	=item $pl->kick
		1332
		1333	Kicks a player out of the game. This destroys the connection.
		1334
		1335	=cut
		1336
		1337	sub kick {
		1338	my ($pl, $kicker) = @_;
		1339
		1340	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1341	$pl->killer ("kicked");
		1342	$pl->ns->destroy;
		1343	}
		1344
		1345	=item cf::player::list_logins
		1346
		1347	Returns am arrayref of all valid playernames in the system, can take a
		1348	while and may block, so not sync_job-capable, ever.
		1349
		1350	=cut
		1351
		1352	sub list_logins {
		1353	my $dirs = aio_readdir $PLAYERDIR
		1354	or return [];
		1355
		1356	my @logins;
		1357
		1358	for my $login (@$dirs) {
		1359	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1360	aio_read $fh, 0, 512, my $buf, 0 or next;
		1361	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1362
		1363	utf8::decode $login;
		1364	push @logins, $login;
		1365	}
		1366
		1367	\@logins
		1368	}
		1369
		1370	=item $player->maps
		1371
		1372	Returns an arrayref of map paths that are private for this
		1373	player. May block.
		1374
		1375	=cut
		1376
		1377	sub maps($) {
		1378	my ($pl) = @_;
		1379
		1380	$pl = ref $pl ? $pl->ob->name : $pl;
		1381
		1382	my $files = aio_readdir playerdir $pl
		1383	or return;
		1384
		1385	my @paths;
		1386
		1387	for (@$files) {
		1388	utf8::decode $_;
		1389	next if /\.(?:pl|pst)$/;
		1390	next unless /^$PATH_SEP/o;
		1391
		1392	push @paths, cf::map::normalise "~$pl/$_";
		1393	}
		1394
		1395	\@paths
		1396	}
		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
		1449	=item $player->ext_reply ($msgid, %msg)
		1450
		1451	Sends an ext reply to the player.
		1452
		1453	=cut
		1454
		1455	sub ext_reply($$%) {
		1456	my ($self, $id, %msg) = @_;
		1457
		1458	$msg{msgid} = $id;
		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1460	}
		1461
		1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
978	my ($path) = @_;	1489	my ($path) = @_;
979		1490
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1492
986	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
987		1494	if ($region->match && $path =~ $region->match) {
988	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1496	if $region->specificity > $specificity;
990		1497	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1498	}
1020		1499
1021	# remove commands	1500	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1501	}
1127		1502
1128	=back	1503	=back
1129
1130		1504
1131	=head3 cf::map	1505	=head3 cf::map
1132		1506
1133	=over 4	1507	=over 4
1134		1508
…		…
1137	package cf::map;	1511	package cf::map;
1138		1512
1139	use Fcntl;	1513	use Fcntl;
1140	use Coro::AIO;	1514	use Coro::AIO;
1141		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1142	our $MAX_RESET = 7200;	1520	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1521	our $DEFAULT_RESET = 3000;
1144		1522
1145	sub generate_random_map {	1523	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1526	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1162	}	1666	}
1163		1667
1164	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1165	# all maps in C++...	1669	# all maps in C++...
1166	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1168		1672
1169	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1171	}	1675	}
1172		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1173	sub try_load_header($) {	1693	sub load_header_from($) {
1174	my ($path) = @_;	1694	my ($self, $path) = @_;
1175		1695
1176	utf8::encode $path;	1696	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1178	or return;	1701	or return;
1179		1702
1180	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1181	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1182		1749
1183	$map->load_header ($path)	1750	$self->{deny_reset} = 1
1184	or return;	1751	if $self->no_reset;
1185		1752
1186	$map->{load_path} = $path;	1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
1187		1755
1188	$map	1756	1
1189	}	1757	}
1190		1758
1191	sub find_map;	1759	sub find;
1192	sub find_map {	1760	sub find {
1193	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1194		1762
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1764
1200	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1201		1766
1202	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1204		1769	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1770	or return;
1220		1771
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1773
1234	if ($map->should_reset) {	1774	$map->load_header
		1775	or return;
		1776
		1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1780	$map->reset;
1236	undef $guard;	1781	undef $guard;
1237	$map = find_map $path	1782	return find $path;
1238	or return;
1239	}	1783	}
1240		1784
1241	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1242	}	1786	}
1243	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1244		1791
1245	sub load {	1792	sub load {
1246	my ($self) = @_;	1793	my ($self) = @_;
1247		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1248	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1250		1801
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1803
1253	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1254		1805
1255	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1256	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1812	or return;
1258		1813
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1815	if delete $self->{load_original};
1261		1816
1262	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1818	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1820	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1267	}	1822	}
1268	}	1823	}
1269		1824
		1825	Coro::cede;
1270	# now do the right thing for maps	1826	# now do the right thing for maps
1271	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1283	$self->activate;	1839	$self->activate;
1284	}	1840	}
1285		1841
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1843	}
1288		1844
1289	sub load_map_sync {	1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
		1882	}
		1883
		1884	sub find_sync {
1290	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1291		1886
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1887	cf::sync_job { find $path, $origin }
		1888	}
1293		1889
1294	cf::sync_job {	1890	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1891	my ($map) = @_;
1296	or return;	1892
		1893	cf::sync_job { $map->load };
		1894	}
		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
1297	$map->load;	1914	$map->load;
1298	$map	1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
1299	}	1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
1300	}	1924	}
1301		1925
1302	sub save {	1926	sub save {
1303	my ($self) = @_;	1927	my ($self) = @_;
1304		1928
		1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1930
1305	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1306		1932
1307	return unless $self->dirty;	1933	return unless $self->dirty;
1308		1934
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1937
1312	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1313		1939
1314	return if $self->{deny_save};	1940	return if $self->{deny_save};
1315		1941
		1942	local $self->{last_access} = $self->last_access;#d#
		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1316	if ($uniq) {	1948	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1951	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1953	}
1322	}	1954	}
1323		1955
1324	sub swap_out {	1956	sub swap_out {
1325	my ($self) = @_;	1957	my ($self) = @_;
		1958
		1959	# save first because save cedes
		1960	$self->save;
		1961
		1962	my $lock = cf::lock_acquire "map_data:" . $self->path;
1326		1963
1327	return if $self->players;	1964	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	1965	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	1966	return if $self->{deny_save};
1330		1967
1331	$self->save;
1332	$self->clear;	1968	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	1969	$self->in_memory (cf::MAP_SWAPPED);
1334	}	1970	}
1335		1971
1336	sub reset_at {	1972	sub reset_at {
1337	my ($self) = @_;	1973	my ($self) = @_;
1338		1974
1339	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1342		1977
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1980
…		…
1350	my ($self) = @_;	1985	my ($self) = @_;
1351		1986
1352	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1353	}	1988	}
1354		1989
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1990	sub reset {
1377	my ($self) = @_;	1991	my ($self) = @_;
1378		1992
		1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1994
1379	return if $self->players;	1995	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		1996
1382	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1383		2008
1384	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1385		2012
1386	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1387		2014
1388	$self->unlink_save;	2015	$self->unlink_save;
1389	$self->destroy;	2016	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1393		2020
1394	sub nuke {	2021	sub nuke {
1395	my ($self) = @_;	2022	my ($self) = @_;
1396		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1400	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1401	}	2037	}
1402		2038
1403	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2040
1406	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1408	}	2047	[
1409		2048	map {
1410	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1411	}	2055	}
1412		2056
1413	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1414	local $cf::FREEZE = 1;
1415		2058
1416	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1417		2061
1418	cf::sync_job {	2062	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2063
1423	warn "end emergency map save\n";	2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
		2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1424	}	2091	}
1425		2092
1426	package cf;	2093	package cf;
1427		2094
1428	=back	2095	=back
1429		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1430		2123
1431	=head3 cf::object::player	2124	=head3 cf::object::player
1432		2125
1433	=over 4	2126	=over 4
1434		2127
…		…
1448		2141
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2143
1451	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1453	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1456	}	2163	}
1457	}	2164	}
1458		2165
1459	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1460		2167
…		…
1474		2181
1475	=item $player_object->enter_link	2182	=item $player_object->enter_link
1476		2183
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2185
1479	The player should be reaosnably safe there for short amounts of time. You	2186	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1481		2188
		2189	Will never block.
		2190
1482	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1483		2192
1484	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2196	fails, to the emergency map position.
1488		2197
1489	Might block.	2198	Might block.
1490		2199
1491	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1492		2211
1493	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2213	my ($self) = @_;
1495		2214
1496	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1497		2216
1498	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2218
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1502		2221
1503	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2223	}
1505		2224
1506	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1508		2229
1509	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1510		2231
1511	unless ($map) {	2232	unless ($map) {
1512	# restore original map position	2233	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	2234	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	2235	$map = cf::map::find $map;
1515		2236
1516	unless ($map) {	2237	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	2238	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	2239	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	2240	or die "FATAL: cannot load emergency map\n";
1520	}	2241	}
1521	}	2242	}
1522		2243
1523	($x, $y) = (-1, -1)	2244	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1529		2250
1530	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1531		2253
		2254	return unless $self->contr->active;
1532	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1534	}	2259	}
1535		2260
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto_map ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1565		2262
1566	=cut	2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
1567		2267
		2268	=cut
		2269
		2270	our $GOTOGEN;
		2271
1568	sub cf::object::player::goto_map {	2272	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2277
1571	$self->enter_link;	2278	$self->enter_link;
1572		2279
1573	(cf::async {	2280	(async {
1574	$path = new cf::path $path;	2281	my $map = eval {
1575
1576	my $map = cf::map::find_map $path->as_string;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1578		2286	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1583		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1585	})->prio (1);	2303	})->prio (1);
1586	}	2304	}
1587		2305
1588	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1589		2307
…		…
1591		2309
1592	sub parse_random_map_params {	2310	sub parse_random_map_params {
1593	my ($spec) = @_;	2311	my ($spec) = @_;
1594		2312
1595	my $rmp = { # defaults	2313	my $rmp = { # defaults
1596	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1598	};	2318	};
1599		2319
1600	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1602		2322
…		…
1606	$rmp	2326	$rmp
1607	}	2327	}
1608		2328
1609	sub prepare_random_map {	2329	sub prepare_random_map {
1610	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2333
1612	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2336	# that depends on the exit object
1615		2337
1616	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1617		2339
1618	if ($exit->map) {	2340	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1623	}	2345	}
1624		2346
1625	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1626		2348
1627	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1629		2352
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
		2355	undef $fh;
		2356	aio_rename "$meta~", $meta;
1632		2357
1633	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2359	$exit->msg (undef);
1635	}	2360	}
1636	}	2361	}
…		…
1638	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1640		2365
1641	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1642		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1643	$self->enter_link;	2379	$self->enter_link;
1644		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
1645	(cf::async {	2385	(async {
		2386	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2387	unless (eval {
1647	prepare_random_map $exit	2388	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2389
1653	1;	2390	1;
1654	}) {	2391	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2396
1660	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2398	$self->leave_link;
1662	}	2399	}
1663	})->prio (1);	2400	})->prio (1);
…		…
1676		2413
1677	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1679		2416
1680	utf8::encode $text;	2417	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2419	}
1683		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1684		2473
1685	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1686		2475
1687	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1689	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1690		2479
1691	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1692	reliable at some point in the future.	2481	become reliable at some point in the future.
1693		2482
1694	=cut	2483	=cut
1695		2484
1696	sub cf::client::query {	2485	sub cf::client::query {
1697	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1705	utf8::encode $text;	2494	utf8::encode $text;
1706	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1707		2496
1708	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1709	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1710	}	2501	}
1711		2502
1712	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1713	on_reply => sub {	2509	on_reply => sub {
1714	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1715		2511
1716	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1717	# get handled first	2513	# get handled first
1718	my $queue = delete $ns->{query_queue};	2514	my $queue = delete $ns->{query_queue}
		2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1719		2516
1720	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1721		2519
1722	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1723		2521
1724	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1725	if (@$queue) {	2523	if (@$queue) {
…		…
1727	} else {	2525	} else {
1728	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1729	}	2527	}
1730	}	2528	}
1731	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1732	);	2548	);
1733		2549
1734	=item $client->coro (\&cb)	2550	=item $client->async (\&cb)
1735		2551
1736	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
1737	be automatically cancelled when the client gets destroyed (e.g. on logout,	2553	be automatically cancelled when the client gets destroyed (e.g. on logout,
1738	or loss of connection).	2554	or loss of connection).
1739		2555
1740	=cut	2556	=cut
1741		2557
1742	sub cf::client::coro {	2558	sub cf::client::async {
1743	my ($self, $cb) = @_;	2559	my ($self, $cb) = @_;
1744		2560
1745	my $coro = &cf::async ($cb);	2561	my $coro = &Coro::async ($cb);
1746		2562
1747	$coro->on_destroy (sub {	2563	$coro->on_destroy (sub {
1748	delete $self->{_coro}{$coro+0};	2564	delete $self->{_coro}{$coro+0};
1749	});	2565	});
1750		2566
…		…
1783		2599
1784	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
1785		2601
1786	=pod	2602	=pod
1787		2603
1788	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
1789		2605
1790	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
1791	cf::object::player player	2610	cf::object::player
1792	cf::player peaceful	2611	player
1793	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
1794		2618
1795	=cut	2619	=cut
1796		2620
1797	for (	2621	for (
1798	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
1799	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
1800	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
1801	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
1802	) {	2627	) {
1803	no strict 'refs';	2628	no strict 'refs';
…		…
1874	=back	2699	=back
1875		2700
1876	=cut	2701	=cut
1877		2702
1878	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
1879		2705
1880	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
1881		2708
1882	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
1883	currently store anything that can be serialised using Storable, which
1884	excludes objects.
1885		2710
1886	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
1887	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
1888		2714
1889	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
1890		2716
1891	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
1892		2719
1893	Return a hashref for use by the extension C<$family>, which can be
1894	modified. After modifications, you have to call C<cf::db_dirty> or
1895	C<cf::db_sync>.
1896
1897	=item $value = cf::db_get $family => $key
1898
1899	Returns a single value from the database
1900
1901	=item cf::db_put $family => $hashref
1902
1903	Stores the given family hashref into the database. Updates are delayed, if
1904	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_put $family => $key => $value
1907
1908	Stores the given C<$value> in the family hash. Updates are delayed, if you
1909	want the data to be synced to disk immediately, use C<cf::db_sync>.
1910
1911	=item cf::db_dirty
1912
1913	Marks the database as dirty, to be updated at a later time.
1914
1915	=item cf::db_sync
1916
1917	Immediately write the database to disk I<if it is dirty>.
1918
1919	=cut
1920
1921	our $DB;
1922
1923	{
1924	my $path = cf::localdir . "/database.pst";
1925
1926	sub db_load() {
1927	$DB = stat $path ? Storable::retrieve $path : { };
1928	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
1929		2722
1930	my $pid;	2723	while (my ($face, $info) = each %$faces) {
1931		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1932	sub db_save() {	2725	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1933	waitpid $pid, 0 if $pid;	2726	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1934	if (0 == ($pid = fork)) {	2727	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1935	$DB->{_meta}{version} = 1;	2728	Coro::cede;
1936	Storable::nstore $DB, "$path~";
1937	rename "$path~", $path;
1938	cf::_exit 0 if defined $pid;
1939	}
1940	}
1941
1942	my $dirty;
1943
1944	sub db_sync() {
1945	db_save if $dirty;
1946	undef $dirty;
1947	}
1948
1949	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1950	db_sync;
1951	});
1952
1953	sub db_dirty() {
1954	$dirty = 1;
1955	$idle->start;
1956	}
1957
1958	sub db_get($;$) {
1959	@_ >= 2
1960	? $DB->{$_[0]}{$_[1]}
1961	: ($DB->{$_[0]} ||= { })
1962	}
1963
1964	sub db_put($$;$) {
1965	if (@_ >= 3) {
1966	$DB->{$_[0]}{$_[1]} = $_[2];
1967	} else {
1968	$DB->{$_[0]} = $_[1];
1969	}
1970	db_dirty;
1971	}
1972
1973	cf::global->attach (
1974	prio => 10000,
1975	on_cleanup => sub {
1976	db_sync;
1977	},	2729	}
1978	);
1979	}
1980		2730
1981	#############################################################################	2731	while (my ($face, $info) = each %$faces) {
1982	# the server's main()	2732	next unless $info->{smooth};
		2733	my $idx = cf::face::find $face
		2734	or next;
		2735	if (my $smooth = cf::face::find $info->{smooth}) {
		2736	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2737	} else {
		2738	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2739	}
		2740	Coro::cede;
		2741	}
		2742	}
		2743
		2744	{
		2745	my $anims = $facedata->{animinfo};
		2746
		2747	while (my ($anim, $info) = each %$anims) {
		2748	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2749	Coro::cede;
		2750	}
		2751
		2752	cf::anim::invalidate_all; # d'oh
		2753	}
		2754
		2755	1
		2756	}
		2757
		2758	sub reload_regions {
		2759	load_resource_file "$MAPDIR/regions"
		2760	or die "unable to load regions file\n";
		2761	}
		2762
		2763	sub reload_facedata {
		2764	load_facedata "$DATADIR/facedata"
		2765	or die "unable to load facedata\n";
		2766	}
		2767
		2768	sub reload_archetypes {
		2769	load_resource_file "$DATADIR/archetypes"
		2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
		2776	}
		2777
		2778	sub reload_treasures {
		2779	load_resource_file "$DATADIR/treasures"
		2780	or die "unable to load treasurelists\n";
		2781	}
		2782
		2783	sub reload_resources {
		2784	warn "reloading resource files...\n";
		2785
		2786	reload_regions;
		2787	reload_facedata;
		2788	#reload_archetypes;#d#
		2789	reload_archetypes;
		2790	reload_treasures;
		2791
		2792	warn "finished reloading resource files\n";
		2793	}
		2794
		2795	sub init {
		2796	reload_resources;
		2797	}
1983		2798
1984	sub cfg_load {	2799	sub cfg_load {
1985	open my $fh, "<:utf8", cf::confdir . "/config"	2800	open my $fh, "<:utf8", "$CONFDIR/config"
1986	or return;	2801	or return;
1987		2802
1988	local $/;	2803	local $/;
1989	*CFG = YAML::Syck::Load <$fh>;	2804	*CFG = YAML::Syck::Load <$fh>;
		2805
		2806	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2807
		2808	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2809	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2810
		2811	if (exists $CFG{mlockall}) {
		2812	eval {
		2813	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2814	and die "WARNING: m(un)lockall failed: $!\n";
		2815	};
		2816	warn $@ if $@;
		2817	}
1990	}	2818	}
1991		2819
1992	sub main {	2820	sub main {
1993	# we must not ever block the main coroutine	2821	# we must not ever block the main coroutine
1994	local $Coro::idle = sub {	2822	local $Coro::idle = sub {
1995	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2823	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1996	(Coro::unblock_sub {	2824	(async {
1997	Event::one_event;	2825	Event::one_event;
1998	})->();	2826	})->prio (Coro::PRIO_MAX);
1999	};	2827	};
2000		2828
2001	cfg_load;	2829	cfg_load;
2002	db_load;	2830	db_init;
2003	load_extensions;	2831	load_extensions;
		2832
		2833	$TICK_WATCHER->start;
2004	Event::loop;	2834	Event::loop;
2005	}	2835	}
2006		2836
2007	#############################################################################	2837	#############################################################################
2008	# initialisation	2838	# initialisation and cleanup
2009		2839
		2840	# install some emergency cleanup handlers
		2841	BEGIN {
		2842	for my $signal (qw(INT HUP TERM)) {
		2843	Event->signal (
		2844	reentrant => 0,
		2845	data => WF_AUTOCANCEL,
		2846	signal => $signal,
		2847	prio => 0,
		2848	cb => sub {
		2849	cf::cleanup "SIG$signal";
		2850	},
		2851	);
		2852	}
		2853	}
		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
		2893	sub emergency_save() {
		2894	my $freeze_guard = cf::freeze_mainloop;
		2895
		2896	warn "enter emergency perl save\n";
		2897
		2898	cf::sync_job {
		2899	# use a peculiar iteration method to avoid tripping on perl
		2900	# refcount bugs in for. also avoids problems with players
		2901	# and maps saved/destroyed asynchronously.
		2902	warn "begin emergency player save\n";
		2903	for my $login (keys %cf::PLAYER) {
		2904	my $pl = $cf::PLAYER{$login} or next;
		2905	$pl->valid or next;
		2906	$pl->save;
		2907	}
		2908	warn "end emergency player save\n";
		2909
		2910	warn "begin emergency map save\n";
		2911	for my $path (keys %cf::MAP) {
		2912	my $map = $cf::MAP{$path} or next;
		2913	$map->valid or next;
		2914	$map->save;
		2915	}
		2916	warn "end emergency map save\n";
		2917
		2918	warn "begin emergency database checkpoint\n";
		2919	BDB::db_env_txn_checkpoint $DB_ENV;
		2920	warn "end emergency database checkpoint\n";
		2921	};
		2922
		2923	warn "leave emergency perl save\n";
		2924	}
		2925
		2926	sub post_cleanup {
		2927	my ($make_core) = @_;
		2928
		2929	warn Carp::longmess "post_cleanup backtrace"
		2930	if $make_core;
		2931	}
		2932
2010	sub reload() {	2933	sub do_reload_perl() {
2011	# can/must only be called in main	2934	# can/must only be called in main
2012	if ($Coro::current != $Coro::main) {	2935	if ($Coro::current != $Coro::main) {
2013	warn "can only reload from main coroutine\n";	2936	warn "can only reload from main coroutine";
2014	return;	2937	return;
2015	}	2938	}
2016		2939
2017	warn "reloading...";	2940	warn "reloading...";
2018		2941
2019	local $FREEZE = 1;	2942	warn "entering sync_job";
		2943
		2944	cf::sync_job {
		2945	cf::write_runtime; # external watchdog should not bark
2020	cf::emergency_save;	2946	cf::emergency_save;
		2947	cf::write_runtime; # external watchdog should not bark
2021		2948
2022	eval {	2949	warn "syncing database to disk";
		2950	BDB::db_env_txn_checkpoint $DB_ENV;
		2951
2023	# if anything goes wrong in here, we should simply crash as we already saved	2952	# if anything goes wrong in here, we should simply crash as we already saved
2024		2953
2025	# cancel all watchers	2954	warn "cancelling all WF_AUTOCANCEL watchers";
2026	for (Event::all_watchers) {	2955	for (Event::all_watchers) {
2027	$_->cancel if $_->data & WF_AUTOCANCEL;	2956	$_->cancel if $_->data & WF_AUTOCANCEL;
2028	}	2957	}
2029		2958
		2959	warn "flushing outstanding aio requests";
		2960	for (;;) {
		2961	BDB::flush;
		2962	IO::AIO::flush;
		2963	Coro::cede;
		2964	last unless IO::AIO::nreqs || BDB::nreqs;
		2965	warn "iterate...";
		2966	}
		2967
		2968	++$RELOAD;
		2969
2030	# cancel all extension coros	2970	warn "cancelling all extension coros";
2031	$_->cancel for values %EXT_CORO;	2971	$_->cancel for values %EXT_CORO;
2032	%EXT_CORO = ();	2972	%EXT_CORO = ();
2033		2973
2034	# unload all extensions	2974	warn "removing commands";
2035	for (@exts) {	2975	%COMMAND = ();
		2976
		2977	warn "removing ext/exti commands";
		2978	%EXTCMD = ();
		2979	%EXTICMD = ();
		2980
		2981	warn "unloading/nuking all extensions";
		2982	for my $pkg (@EXTS) {
2036	warn "unloading <$_>";	2983	warn "... unloading $pkg";
2037	unload_extension $_;	2984
		2985	if (my $cb = $pkg->can ("unload")) {
		2986	eval {
		2987	$cb->($pkg);
		2988	1
		2989	} or warn "$pkg unloaded, but with errors: $@";
2038	}	2990	}
2039		2991
		2992	warn "... nuking $pkg";
		2993	Symbol::delete_package $pkg;
		2994	}
		2995
2040	# unload all modules loaded from $LIBDIR	2996	warn "unloading all perl modules loaded from $LIBDIR";
2041	while (my ($k, $v) = each %INC) {	2997	while (my ($k, $v) = each %INC) {
2042	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2998	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2043		2999
2044	warn "removing <$k>";	3000	warn "... unloading $k";
2045	delete $INC{$k};	3001	delete $INC{$k};
2046		3002
2047	$k =~ s/\.pm$//;	3003	$k =~ s/\.pm$//;
2048	$k =~ s/\//::/g;	3004	$k =~ s/\//::/g;
2049		3005
…		…
2052	}	3008	}
2053		3009
2054	Symbol::delete_package $k;	3010	Symbol::delete_package $k;
2055	}	3011	}
2056		3012
2057	# sync database to disk
2058	cf::db_sync;
2059	IO::AIO::flush;
2060
2061	# get rid of safe::, as good as possible	3013	warn "getting rid of safe::, as good as possible";
2062	Symbol::delete_package "safe::$_"	3014	Symbol::delete_package "safe::$_"
2063	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3015	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2064		3016
2065	# remove register_script_function callbacks
2066	# TODO
2067
2068	# unload cf.pm "a bit"	3017	warn "unloading cf.pm \"a bit\"";
2069	delete $INC{"cf.pm"};	3018	delete $INC{"cf.pm"};
		3019	delete $INC{"cf/pod.pm"};
2070		3020
2071	# don't, removes xs symbols, too,	3021	# don't, removes xs symbols, too,
2072	# and global variables created in xs	3022	# and global variables created in xs
2073	#Symbol::delete_package __PACKAGE__;	3023	#Symbol::delete_package __PACKAGE__;
2074		3024
2075	# reload cf.pm	3025	warn "unload completed, starting to reload now";
		3026
2076	warn "reloading cf.pm";	3027	warn "reloading cf.pm";
2077	require cf;	3028	require cf;
2078	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3029	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2079		3030
2080	# load config and database again	3031	warn "loading config and database again";
2081	cf::cfg_load;	3032	cf::cfg_load;
2082	cf::db_load;
2083		3033
2084	# load extensions
2085	warn "load extensions";	3034	warn "loading extensions";
2086	cf::load_extensions;	3035	cf::load_extensions;
2087		3036
2088	# reattach attachments to objects	3037	warn "reattaching attachments to objects/players";
2089	warn "reattach";	3038	_global_reattach; # objects, sockets
2090	_global_reattach;	3039	warn "reattaching attachments to maps";
2091	};	3040	reattach $_ for values %MAP;
		3041	warn "reattaching attachments to players";
		3042	reattach $_ for values %PLAYER;
2092		3043
2093	if ($@) {	3044	warn "leaving sync_job";
		3045
		3046	1
		3047	} or do {
2094	warn $@;	3048	warn $@;
2095	warn "error while reloading, exiting.";	3049	warn "error while reloading, exiting.";
2096	exit 1;	3050	exit 1;
2097	}	3051	};
2098		3052
2099	warn "reloaded successfully";	3053	warn "reloaded";
2100	};	3054	};
2101		3055
2102	#############################################################################	3056	our $RELOAD_WATCHER; # used only during reload
2103		3057
2104	unless ($LINK_MAP) {	3058	sub reload_perl() {
2105	$LINK_MAP = cf::map::new;	3059	# doing reload synchronously and two reloads happen back-to-back,
		3060	# coro crashes during coro_state_free->destroy here.
2106		3061
2107	$LINK_MAP->width (41);	3062	$RELOAD_WATCHER ||= Event->timer (
2108	$LINK_MAP->height (41);	3063	reentrant => 0,
2109	$LINK_MAP->alloc;
2110	$LINK_MAP->path ("{link}");
2111	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2112	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2113
2114	# dirty hack because... archetypes are not yet loaded
2115	Event->timer (
2116	after => 2,	3064	after => 0,
		3065	data => WF_AUTOCANCEL,
2117	cb => sub {	3066	cb => sub {
2118	$_[0]->w->cancel;	3067	do_reload_perl;
2119		3068	undef $RELOAD_WATCHER;
2120	# provide some exits "home"
2121	my $exit = cf::object::new "exit";
2122
2123	$exit->slaying ($EMERGENCY_POSITION->[0]);
2124	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2125	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2126
2127	$LINK_MAP->insert ($exit->clone, 19, 19);
2128	$LINK_MAP->insert ($exit->clone, 19, 20);
2129	$LINK_MAP->insert ($exit->clone, 19, 21);
2130	$LINK_MAP->insert ($exit->clone, 20, 19);
2131	$LINK_MAP->insert ($exit->clone, 20, 21);
2132	$LINK_MAP->insert ($exit->clone, 21, 19);
2133	$LINK_MAP->insert ($exit->clone, 21, 20);
2134	$LINK_MAP->insert ($exit->clone, 21, 21);
2135
2136	$exit->destroy;
2137	});	3069	},
2138		3070	);
2139	$LINK_MAP->{deny_save} = 1;
2140	$LINK_MAP->{deny_reset} = 1;
2141
2142	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2143	}	3071	}
2144
2145	register "<global>", __PACKAGE__;
2146		3072
2147	register_command "reload" => sub {	3073	register_command "reload" => sub {
2148	my ($who, $arg) = @_;	3074	my ($who, $arg) = @_;
2149		3075
2150	if ($who->flag (FLAG_WIZ)) {	3076	if ($who->flag (FLAG_WIZ)) {
2151	$who->message ("start of reload.");
2152	reload;
2153	$who->message ("end of reload.");	3077	$who->message ("reloading server.");
		3078	async { reload_perl };
2154	}	3079	}
2155	};	3080	};
2156		3081
2157	unshift @INC, $LIBDIR;	3082	unshift @INC, $LIBDIR;
2158		3083
		3084	my $bug_warning = 0;
		3085
		3086	our @WAIT_FOR_TICK;
		3087	our @WAIT_FOR_TICK_BEGIN;
		3088
		3089	sub wait_for_tick {
		3090	return unless $TICK_WATCHER->is_active;
		3091	return if $Coro::current == $Coro::main;
		3092
		3093	my $signal = new Coro::Signal;
		3094	push @WAIT_FOR_TICK, $signal;
		3095	$signal->wait;
		3096	}
		3097
		3098	sub wait_for_tick_begin {
		3099	return unless $TICK_WATCHER->is_active;
		3100	return if $Coro::current == $Coro::main;
		3101
		3102	my $signal = new Coro::Signal;
		3103	push @WAIT_FOR_TICK_BEGIN, $signal;
		3104	$signal->wait;
		3105	}
		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2159	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2160	reentrant => 0,	3110	reentrant => 0,
		3111	parked => 1,
2161	prio => 0,	3112	prio => 0,
2162	at => $NEXT_TICK || $TICK,	3113	at => $NEXT_TICK || $TICK,
2163	data => WF_AUTOCANCEL,	3114	data => WF_AUTOCANCEL,
2164	cb => sub {	3115	cb => sub {
2165	unless ($FREEZE) {	3116	if ($Coro::current != $Coro::main) {
		3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3118	unless ++$bug_warning > 10;
		3119	return;
		3120	}
		3121
		3122	$NOW = $tick_start = Event::time;
		3123
2166	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
2167	$RUNTIME += $TICK;	3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2168	}	3147	};
2169		3148
		3149	$RUNTIME += $TICK;
2170	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2171		3151
		3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3153	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3154	Coro::async_pool {
		3155	write_runtime
		3156	or warn "ERROR: unable to write runtime file: $!";
		3157	};
		3158	}
		3159
		3160	# my $AFTER = Event::time;
		3161	# warn $AFTER - $NOW;#d#
		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2172	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2173	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2174		3174
2175	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2176	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
		3177
		3178	$LOAD = ($NOW - $tick_start) / $TICK;
		3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3180
		3181	_post_tick;
		3182
		3183
2177	},	3184	},
2178	);	3185	);
2179		3186
		3187	{
2180	IO::AIO::max_poll_time $TICK * 0.2;	3188	BDB::max_poll_time $TICK * 0.1;
2181		3189	$BDB_POLL_WATCHER = Event->io (
2182	Event->io (	3190	reentrant => 0,
2183	fd => IO::AIO::poll_fileno,	3191	fd => BDB::poll_fileno,
2184	poll => 'r',	3192	poll => 'r',
2185	prio => 5,	3193	prio => 0,
2186	data => WF_AUTOCANCEL,
2187	cb => \&IO::AIO::poll_cb,
2188	);
2189
2190	Event->timer (
2191	data => WF_AUTOCANCEL,	3194	data => WF_AUTOCANCEL,
2192	after => 0,	3195	cb => \&BDB::poll_cb,
2193	interval => 10,	3196	);
2194	cb => sub {	3197	BDB::min_parallel 8;
2195	(Coro::unblock_sub {	3198
2196	write_runtime	3199	BDB::set_sync_prepare {
2197	or warn "ERROR: unable to write runtime file: $!";	3200	my $status;
		3201	my $current = $Coro::current;
		3202	(
		3203	sub {
		3204	$status = $!;
		3205	$current->ready; undef $current;
		3206	},
		3207	sub {
		3208	Coro::schedule while defined $current;
		3209	$! = $status;
		3210	},
		3211	)
		3212	};
		3213
		3214	unless ($DB_ENV) {
		3215	$DB_ENV = BDB::db_env_create;
		3216
		3217	cf::sync_job {
		3218	eval {
		3219	BDB::db_env_open
		3220	$DB_ENV,
		3221	$BDBDIR,
		3222	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3223	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3224	0666;
		3225
		3226	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3227
		3228	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3229	$DB_ENV->set_lk_detect;
		3230	};
		3231
		3232	cf::cleanup "db_env_open(db): $@" if $@;
2198	})->();	3233	};
2199	},	3234	}
2200	);	3235	}
		3236
		3237	{
		3238	IO::AIO::min_parallel 8;
		3239
		3240	undef $Coro::AIO::WATCHER;
		3241	IO::AIO::max_poll_time $TICK * 0.1;
		3242	$AIO_POLL_WATCHER = Event->io (
		3243	reentrant => 0,
		3244	data => WF_AUTOCANCEL,
		3245	fd => IO::AIO::poll_fileno,
		3246	poll => 'r',
		3247	prio => 6,
		3248	cb => \&IO::AIO::poll_cb,
		3249	);
		3250	}
		3251
		3252	my $_log_backtrace;
		3253
		3254	sub _log_backtrace {
		3255	my ($msg, @addr) = @_;
		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
		3262	async {
		3263	my @bt = fork_call {
		3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3267	or die "addr2line: $!";
		3268
		3269	my @funcs;
		3270	my @res = <$fh>;
		3271	chomp for @res;
		3272	while (@res) {
		3273	my ($func, $line) = splice @res, 0, 2, ();
		3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
		3278	};
		3279
		3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
		3283	};
		3284	} else {
		3285	LOG llevInfo, "[ABT] $msg\n";
		3286	LOG llevInfo, "[ABT] [suppressed]\n";
		3287	}
		3288	}
		3289
		3290	# load additional modules
		3291	use cf::pod;
2201		3292
2202	END { cf::emergency_save }	3293	END { cf::emergency_save }
2203		3294
2204	1	3295	1
2205		3296

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