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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 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->convert_blessed->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 $fh	414	sub fork_call(&@) {
343	and return;	415	my ($cb, @args) = @_;
344		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
345	close $fh	423	close $fh2;
346	or return;
347		424
348	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
349	and return;	426	$res = Coro::Storable::thaw $res;
350		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
351	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	574	}
353		575
354	=back	576	=back
355		577
356	=cut	578	=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		579
478	#############################################################################	580	#############################################################################
479		581
480	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
481		583
…		…
483	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
484	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
485		587
486	In the following description, CLASS can be any of C<global>, C<object>	588	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	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
488	crossfire+).	590	Crossfire TRT).
489		591
490	=over 4	592	=over 4
491		593
492	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
493		595
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	710	our @CB_MAP = ();
609		711
610	my %attachment;	712	my %attachment;
611		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
612	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
614		722
615	use sort 'stable';	723	use sort 'stable';
616		724
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
651		759
652	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		764
657	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	766	my $pkg = shift @arg;
659		767
660	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
690	}	798	}
691		799
692	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
693	} else {	801	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	803	}
696		804
697	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
698	}	806	}
699		807
…		…
701	if (ref $_[0]) {	809	if (ref $_[0]) {
702	_object_attach @_;	810	_object_attach @_;
703	} else {	811	} else {
704	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
705	}	813	}
		814	_recalc_want;
706	};	815	};
707		816
708	# all those should be optimised	817	# all those should be optimised
709	sub cf::attachable::detach {	818	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
714	reattach ($obj);	823	reattach ($obj);
715	} else {	824	} else {
716	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
717	}	826	}
		827	_recalc_want;
718	};	828	};
719		829
720	sub cf::attachable::attached {	830	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
722		832
…		…
787	# object support	897	# object support
788		898
789	sub reattach {	899	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		904
793	my $registry = $obj->registry;	905	my $registry = $obj->registry;
794		906
795	@$registry = ();	907	@$registry = ();
796		908
…		…
843	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
844		956
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	961	close $fh;
850		962
851	if (@$objs) {	963	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	969	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
859	}	971	}
860	} else {	972	} else {
861	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
893	or return;	1005	or return;
894	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
895	}	1007	}
896		1008
897	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
899	return ($data, $av);	1011	return ($data, $av);
900	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
901		1019
902	#############################################################################	1020	#############################################################################
903	# command handling &c	1021	# command handling &c
904		1022
905	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1037	}
920		1038
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1040
923	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
924		1046
925	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
926	called.	1048	called.
927		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
928	=cut	1061	=cut
929		1062
930	sub register_extcmd {	1063	sub register_extcmd {
931	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
932		1065
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
937	}	1073	}
938		1074
939	cf::player->attach (	1075	cf::player->attach (
940	on_command => sub {	1076	on_command => sub {
941	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
954		1090
955	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
956		1092
957	if (ref $msg) {	1093	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	1097	}
962	}	1098	}
963	} else {	1099	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		1102
967	cf::override;	1103	cf::override;
968	},	1104	},
969	);	1105	);
970		1106
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
978	my ($path) = @_;	1453	my ($path) = @_;
979		1454
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1456
986	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
987		1458	if ($region->match && $path =~ $region->match) {
988	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1460	if $region->specificity > $specificity;
990		1461	}
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	# }	1462	}
1020		1463
1021	# remove commands	1464	$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	}	1465	}
1127		1466
1128	=back	1467	=back
1129
1130		1468
1131	=head3 cf::map	1469	=head3 cf::map
1132		1470
1133	=over 4	1471	=over 4
1134		1472
…		…
1137	package cf::map;	1475	package cf::map;
1138		1476
1139	use Fcntl;	1477	use Fcntl;
1140	use Coro::AIO;	1478	use Coro::AIO;
1141		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1142	our $MAX_RESET = 7200;	1484	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1485	our $DEFAULT_RESET = 3000;
1144		1486
1145	sub generate_random_map {	1487	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1490	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
		1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
		1527	my ($self, $merge) = @_;
		1528
		1529	# we have to keep some variables in memory intact
		1530	local $self->{path};
		1531	local $self->{load_path};
		1532
		1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
		1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
		1542
		1543	# map plan:
		1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
		1551
		1552	$path =~ s/$PATH_SEP/\//go;
		1553
		1554	# treat it as relative path if it starts with
		1555	# something that looks reasonable
		1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1558
		1559	$base =~ s{[^/]+/?$}{};
		1560	$path = "$base/$path";
		1561	}
		1562
		1563	for ($path) {
		1564	redo if s{//}{/};
		1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
		1568
		1569	$path
		1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
1162	}	1630	}
1163		1631
1164	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1165	# all maps in C++...	1633	# all maps in C++...
1166	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1168		1636
1169	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1171	}	1639	}
1172		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
1173	sub try_load_header($) {	1657	sub load_header_from($) {
1174	my ($path) = @_;	1658	my ($self, $path) = @_;
1175		1659
1176	utf8::encode $path;	1660	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1178	or return;	1665	or return;
1179		1666
1180	my $map = cf::map::new	1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
		1708	} else {
		1709	$self->load_header_orig
1181	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1182		1713
1183	$map->load_header ($path)	1714	$self->{deny_reset} = 1
1184	or return;	1715	if $self->no_reset;
1185		1716
1186	$map->{load_path} = $path;	1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
1187		1719
1188	$map	1720	1
1189	}	1721	}
1190		1722
1191	sub find_map;	1723	sub find;
1192	sub find_map {	1724	sub find {
1193	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1194		1726
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1728
1200	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1201		1730
1202	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1204		1733	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;	1734	or return;
1220		1735
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;	1736	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1737
1234	if ($map->should_reset) {	1738	$map->load_header
		1739	or return;
		1740
		1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1744	$map->reset;
1236	undef $guard;	1745	undef $guard;
1237	$map = find_map $path	1746	return find $path;
1238	or return;
1239	}	1747	}
1240		1748
1241	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1242	}	1750	}
1243	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1244		1755
1245	sub load {	1756	sub load {
1246	my ($self) = @_;	1757	my ($self) = @_;
1247		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1248	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1250		1765
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1767
1253	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1254		1769
1255	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1256	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1776	or return;
1258		1777
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1779	if delete $self->{load_original};
1261		1780
1262	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1782	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1784	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1267	}	1786	}
1268	}	1787	}
1269		1788
		1789	Coro::cede;
1270	# now do the right thing for maps	1790	# now do the right thing for maps
1271	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1272
1273	if ($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)	1792	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1793	unless $self->difficulty;
		1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1283	$self->activate;	1803	$self->activate;
1284	}	1804	}
1285		1805
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1807	}
1288		1808
1289	sub load_map_sync {	1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
		1826	my ($map) = @_;
		1827
		1828	my @diag; # diagonal neighbours
		1829
		1830	for (0 .. 3) {
		1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
		1836
		1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
		1840
		1841	for (@diag) {
		1842	my $neigh = find @$_
		1843	or next;
		1844	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1290	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1291		1850
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1293		1853
1294	cf::sync_job {	1854	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1296	or return;	1856
		1857	cf::sync_job { $map->load };
		1858	}
		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
1297	$map->load;	1878	$map->load;
1298	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1299	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1300	}	1888	}
1301		1889
1302	sub save {	1890	sub save {
1303	my ($self) = @_;	1891	my ($self) = @_;
1304		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
1305	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1306		1896
1307	return unless $self->dirty;	1897	return unless $self->dirty;
1308		1898
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1901
1312	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1313		1903
1314	return if $self->{deny_save};	1904	return if $self->{deny_save};
1315		1905
		1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1316	if ($uniq) {	1912	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1915	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1917	}
1322	}	1918	}
1323		1919
1324	sub swap_out {	1920	sub swap_out {
1325	my ($self) = @_;	1921	my ($self) = @_;
1326		1922
1327	# save first because save cedes	1923	# save first because save cedes
1328	$self->save;	1924	$self->save;
		1925
		1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
1329		1927
1330	return if $self->players;	1928	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	1930	return if $self->{deny_save};
1333		1931
…		…
1337		1935
1338	sub reset_at {	1936	sub reset_at {
1339	my ($self) = @_;	1937	my ($self) = @_;
1340		1938
1341	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};
1343	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1344		1941
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		1944
…		…
1352	my ($self) = @_;	1949	my ($self) = @_;
1353		1950
1354	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1355	}	1952	}
1356		1953
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	1954	sub reset {
1379	my ($self) = @_;	1955	my ($self) = @_;
1380		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1381	return if $self->players;	1959	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		1960
1384	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1385		1972
1386	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1387		1976
1388	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1389		1978
1390	$self->unlink_save;	1979	$self->unlink_save;
1391	$self->destroy;	1980	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1395		1984
1396	sub nuke {	1985	sub nuke {
1397	my ($self) = @_;	1986	my ($self) = @_;
1398		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1402	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1403	}	2001	}
1404		2002
1405	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2004
1408	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1410	}	2011	[
1411		2012	map {
1412	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1413	}	2019	}
1414		2020
1415	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1416	local $cf::FREEZE = 1;
1417		2022
1418	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1419		2025
1420	cf::sync_job {	2026	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2027
1425	warn "end emergency map save\n";	2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
1426	}	2055	}
1427		2056
1428	package cf;	2057	package cf;
1429		2058
1430	=back	2059	=back
1431		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
		2066
		2067	=over 4
		2068
		2069	=item $ob->inv_recursive
		2070
		2071	Returns the inventory of the object _and_ their inventories, recursively.
		2072
		2073	=cut
		2074
		2075	sub inv_recursive_;
		2076	sub inv_recursive_ {
		2077	map { $_, inv_recursive_ $_->inv } @_
		2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
1432		2087
1433	=head3 cf::object::player	2088	=head3 cf::object::player
1434		2089
1435	=over 4	2090	=over 4
1436		2091
…		…
1450		2105
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2107
1453	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1455	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1458	}	2127	}
1459	}	2128	}
1460		2129
1461	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1462		2131
…		…
1476		2145
1477	=item $player_object->enter_link	2146	=item $player_object->enter_link
1478		2147
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2148	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2149
1481	The player should be reaosnably safe there for short amounts of time. You	2150	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1483		2152
		2153	Will never block.
		2154
1484	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1485		2156
1486	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2160	fails, to the emergency map position.
1490		2161
1491	Might block.	2162	Might block.
1492		2163
1493	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
1494		2175
1495	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2177	my ($self) = @_;
1497		2178
1498	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1499		2180
1500	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2182
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1504		2185
1505	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2187	}
1507		2188
1508	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1510		2193
1511	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1512		2195
1513	unless ($map) {	2196	unless ($map) {
1514	# restore original map position	2197	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1517		2200
1518	unless ($map) {	2201	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1522	}	2205	}
1523	}	2206	}
1524		2207
1525	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1531		2214
1532	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1533		2217
		2218	return unless $self->contr->active;
1534	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1536	}	2223	}
1537		2224
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;
1556	cf::async {
1557	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;
1561	};
1562	}
1563	},
1564	);
1565
1566	=item $player_object->goto_map ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1567		2226
1568	=cut	2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
1569		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1570	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1572		2241
1573	$self->enter_link;	2242	$self->enter_link;
1574		2243
1575	(cf::async {	2244	(async {
1576	$path = new cf::path $path;	2245	my $map = eval {
1577
1578	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1579	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1580		2250	$map = $check->($map) if $check && $map;
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1585		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1586	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1587	})->prio (1);	2267	})->prio (1);
1588	}	2268	}
1589		2269
1590	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1591		2271
…		…
1593		2273
1594	sub parse_random_map_params {	2274	sub parse_random_map_params {
1595	my ($spec) = @_;	2275	my ($spec) = @_;
1596		2276
1597	my $rmp = { # defaults	2277	my $rmp = { # defaults
1598	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1600	};	2282	};
1601		2283
1602	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1604		2286
…		…
1608	$rmp	2290	$rmp
1609	}	2291	}
1610		2292
1611	sub prepare_random_map {	2293	sub prepare_random_map {
1612	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		2297
1614	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	2300	# that depends on the exit object
1617		2301
1618	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1619		2303
1620	if ($exit->map) {	2304	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1625	}	2309	}
1626		2310
1627	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1628		2312
1629	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1631		2316
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1634		2321
1635	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2323	$exit->msg (undef);
1637	}	2324	}
1638	}	2325	}
…		…
1640	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1642		2329
1643	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1644		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1645	$self->enter_link;	2343	$self->enter_link;
1646		2344
1647	(cf::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2347	unless (eval {
1649	prepare_random_map $exit	2348	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2349
1655	1;	2350	1;
1656	}) {	2351	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2356
1662	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2358	$self->leave_link;
1664	}	2359	}
1665	})->prio (1);	2360	})->prio (1);
…		…
1678		2373
1679	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1681		2376
1682	utf8::encode $text;	2377	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2379	}
1685		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1686		2431
1687	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1688		2433
1689	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1691	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1692		2437
1693	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1694	reliable at some point in the future.	2439	become reliable at some point in the future.
1695		2440
1696	=cut	2441	=cut
1697		2442
1698	sub cf::client::query {	2443	sub cf::client::query {
1699	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1707	utf8::encode $text;	2452	utf8::encode $text;
1708	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1709		2454
1710	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1711	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1712	}	2459	}
1713		2460
1714	cf::client->attach (	2461	cf::client->attach (
1715	on_reply => sub {	2462	on_reply => sub {
1716	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1719	# get handled first	2466	# get handled first
1720	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2469
1723	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2472
1725	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1726		2474
1727	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2476	if (@$queue) {
…		…
1730	} else {	2478	} else {
1731	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1732	}	2480	}
1733	}	2481	}
1734	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1735	);	2501	);
1736		2502
1737	=item $client->coro (\&cb)	2503	=item $client->async (\&cb)
1738		2504
1739	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2507	or loss of connection).
1742		2508
1743	=cut	2509	=cut
1744		2510
1745	sub cf::client::coro {	2511	sub cf::client::async {
1746	my ($self, $cb) = @_;	2512	my ($self, $cb) = @_;
1747		2513
1748	my $coro = &cf::async ($cb);	2514	my $coro = &Coro::async ($cb);
1749		2515
1750	$coro->on_destroy (sub {	2516	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2517	delete $self->{_coro}{$coro+0};
1752	});	2518	});
1753		2519
…		…
1786		2552
1787	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
1788		2554
1789	=pod	2555	=pod
1790		2556
1791	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
1792		2558
1793	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
1794	cf::object::player player	2560	cf::object::player player
1795	cf::player peaceful	2561	cf::player peaceful
1796	cf::map trigger	2562	cf::map trigger
…		…
1877	=back	2643	=back
1878		2644
1879	=cut	2645	=cut
1880		2646
1881	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
1882		2649
1883	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
1884		2652
1885	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
1886	currently store anything that can be serialised using Storable, which
1887	excludes objects.
1888		2654
1889	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
1890	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
1891		2658
1892	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
1893		2660
1894	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
1895		2663
1896	Return a hashref for use by the extension C<$family>, which can be
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899
1900	=item $value = cf::db_get $family => $key
1901
1902	Returns a single value from the database
1903
1904	=item cf::db_put $family => $hashref
1905
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_put $family => $key => $value
1910
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921
1922	=cut
1923
1924	our $DB;
1925
1926	{
1927	my $path = cf::localdir . "/database.pst";
1928
1929	sub db_load() {
1930	$DB = stat $path ? Storable::retrieve $path : { };
1931	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1932		2666
1933	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1934		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1935	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1936	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1937	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1938	$DB->{_meta}{version} = 1;	2672	Coro::cede;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});
1955
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}
1960
1961	sub db_get($;$) {
1962	@_ >= 2
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966
1967	sub db_put($$;$) {
1968	if (@_ >= 3) {
1969	$DB->{$_[0]}{$_[1]} = $_[2];
1970	} else {
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975
1976	cf::global->attach (
1977	prio => 10000,
1978	on_cleanup => sub {
1979	db_sync;
1980	},	2673	}
1981	);
1982	}
1983		2674
1984	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
1985	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
		2722	sub reload_resources {
		2723	warn "reloading resource files...\n";
		2724
		2725	reload_regions;
		2726	reload_facedata;
		2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
		2732	}
		2733
		2734	sub init {
		2735	reload_resources;
		2736	}
1986		2737
1987	sub cfg_load {	2738	sub cfg_load {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	2740	or return;
1990		2741
1991	local $/;	2742	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
		2744
		2745	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2746
		2747	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2748	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2749
		2750	if (exists $CFG{mlockall}) {
		2751	eval {
		2752	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2753	and die "WARNING: m(un)lockall failed: $!\n";
		2754	};
		2755	warn $@ if $@;
		2756	}
1993	}	2757	}
1994		2758
1995	sub main {	2759	sub main {
1996	# we must not ever block the main coroutine	2760	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	2761	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2762	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	2763	(async {
2000	Event::one_event;	2764	Event::one_event;
2001	})->();	2765	})->prio (Coro::PRIO_MAX);
2002	};	2766	};
2003		2767
2004	cfg_load;	2768	cfg_load;
2005	db_load;	2769	db_init;
2006	load_extensions;	2770	load_extensions;
		2771
		2772	$TICK_WATCHER->start;
2007	Event::loop;	2773	Event::loop;
2008	}	2774	}
2009		2775
2010	#############################################################################	2776	#############################################################################
2011	# initialisation	2777	# initialisation and cleanup
2012		2778
		2779	# install some emergency cleanup handlers
		2780	BEGIN {
		2781	for my $signal (qw(INT HUP TERM)) {
		2782	Event->signal (
		2783	reentrant => 0,
		2784	data => WF_AUTOCANCEL,
		2785	signal => $signal,
		2786	prio => 0,
		2787	cb => sub {
		2788	cf::cleanup "SIG$signal";
		2789	},
		2790	);
		2791	}
		2792	}
		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
		2832	sub emergency_save() {
		2833	my $freeze_guard = cf::freeze_mainloop;
		2834
		2835	warn "enter emergency perl save\n";
		2836
		2837	cf::sync_job {
		2838	# use a peculiar iteration method to avoid tripping on perl
		2839	# refcount bugs in for. also avoids problems with players
		2840	# and maps saved/destroyed asynchronously.
		2841	warn "begin emergency player save\n";
		2842	for my $login (keys %cf::PLAYER) {
		2843	my $pl = $cf::PLAYER{$login} or next;
		2844	$pl->valid or next;
		2845	$pl->save;
		2846	}
		2847	warn "end emergency player save\n";
		2848
		2849	warn "begin emergency map save\n";
		2850	for my $path (keys %cf::MAP) {
		2851	my $map = $cf::MAP{$path} or next;
		2852	$map->valid or next;
		2853	$map->save;
		2854	}
		2855	warn "end emergency map save\n";
		2856
		2857	warn "begin emergency database checkpoint\n";
		2858	BDB::db_env_txn_checkpoint $DB_ENV;
		2859	warn "end emergency database checkpoint\n";
		2860	};
		2861
		2862	warn "leave emergency perl save\n";
		2863	}
		2864
		2865	sub post_cleanup {
		2866	my ($make_core) = @_;
		2867
		2868	warn Carp::longmess "post_cleanup backtrace"
		2869	if $make_core;
		2870	}
		2871
2013	sub reload() {	2872	sub do_reload_perl() {
2014	# can/must only be called in main	2873	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	2875	warn "can only reload from main coroutine";
2017	return;	2876	return;
2018	}	2877	}
2019		2878
2020	warn "reloading...";	2879	warn "reloading...";
2021		2880
2022	local $FREEZE = 1;	2881	warn "entering sync_job";
		2882
		2883	cf::sync_job {
		2884	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	2885	cf::emergency_save;
		2886	cf::write_runtime; # external watchdog should not bark
2024		2887
2025	eval {	2888	warn "syncing database to disk";
		2889	BDB::db_env_txn_checkpoint $DB_ENV;
		2890
2026	# if anything goes wrong in here, we should simply crash as we already saved	2891	# if anything goes wrong in here, we should simply crash as we already saved
2027		2892
2028	# cancel all watchers	2893	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	2894	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	2895	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	2896	}
2032		2897
		2898	warn "flushing outstanding aio requests";
		2899	for (;;) {
		2900	BDB::flush;
		2901	IO::AIO::flush;
		2902	Coro::cede;
		2903	last unless IO::AIO::nreqs || BDB::nreqs;
		2904	warn "iterate...";
		2905	}
		2906
		2907	++$RELOAD;
		2908
2033	# cancel all extension coros	2909	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	2910	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	2911	%EXT_CORO = ();
2036		2912
2037	# unload all extensions	2913	warn "removing commands";
2038	for (@exts) {	2914	%COMMAND = ();
		2915
		2916	warn "removing ext/exti commands";
		2917	%EXTCMD = ();
		2918	%EXTICMD = ();
		2919
		2920	warn "unloading/nuking all extensions";
		2921	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	2922	warn "... unloading $pkg";
2040	unload_extension $_;	2923
		2924	if (my $cb = $pkg->can ("unload")) {
		2925	eval {
		2926	$cb->($pkg);
		2927	1
		2928	} or warn "$pkg unloaded, but with errors: $@";
2041	}	2929	}
2042		2930
		2931	warn "... nuking $pkg";
		2932	Symbol::delete_package $pkg;
		2933	}
		2934
2043	# unload all modules loaded from $LIBDIR	2935	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	2936	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2937	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		2938
2047	warn "removing <$k>";	2939	warn "... unloading $k";
2048	delete $INC{$k};	2940	delete $INC{$k};
2049		2941
2050	$k =~ s/\.pm$//;	2942	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	2943	$k =~ s/\//::/g;
2052		2944
…		…
2055	}	2947	}
2056		2948
2057	Symbol::delete_package $k;	2949	Symbol::delete_package $k;
2058	}	2950	}
2059		2951
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	2952	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		2955
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	2956	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2073		2959
2074	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2075	# and global variables created in xs	2961	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2077		2963
2078	# reload cf.pm	2964	warn "unload completed, starting to reload now";
		2965
2079	warn "reloading cf.pm";	2966	warn "reloading cf.pm";
2080	require cf;	2967	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2968	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		2969
2083	# load config and database again	2970	warn "loading config and database again";
2084	cf::cfg_load;	2971	cf::cfg_load;
2085	cf::db_load;
2086		2972
2087	# load extensions
2088	warn "load extensions";	2973	warn "loading extensions";
2089	cf::load_extensions;	2974	cf::load_extensions;
2090		2975
2091	# reattach attachments to objects	2976	warn "reattaching attachments to objects/players";
2092	warn "reattach";	2977	_global_reattach; # objects, sockets
2093	_global_reattach;	2978	warn "reattaching attachments to maps";
2094	};	2979	reattach $_ for values %MAP;
		2980	warn "reattaching attachments to players";
		2981	reattach $_ for values %PLAYER;
2095		2982
2096	if ($@) {	2983	warn "leaving sync_job";
		2984
		2985	1
		2986	} or do {
2097	warn $@;	2987	warn $@;
2098	warn "error while reloading, exiting.";	2988	warn "error while reloading, exiting.";
2099	exit 1;	2989	exit 1;
2100	}	2990	};
2101		2991
2102	warn "reloaded successfully";	2992	warn "reloaded";
2103	};	2993	};
2104		2994
2105	#############################################################################	2995	our $RELOAD_WATCHER; # used only during reload
2106		2996
2107	unless ($LINK_MAP) {	2997	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
2109		3000
2110	$LINK_MAP->width (41);	3001	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	3002	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	3003	after => 0,
		3004	data => WF_AUTOCANCEL,
2120	cb => sub {	3005	cb => sub {
2121	$_[0]->w->cancel;	3006	do_reload_perl;
2122		3007	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	3008	},
2141		3009	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	3010	}
2147
2148	register "<global>", __PACKAGE__;
2149		3011
2150	register_command "reload" => sub {	3012	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
2152		3014
2153	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	3016	$who->message ("reloading server.");
		3017	async { reload_perl };
2157	}	3018	}
2158	};	3019	};
2159		3020
2160	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
2161		3022
		3023	my $bug_warning = 0;
		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2162	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	3049	reentrant => 0,
		3050	parked => 1,
2164	prio => 0,	3051	prio => 0,
2165	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	3053	data => WF_AUTOCANCEL,
2167	cb => sub {	3054	cb => sub {
2168	unless ($FREEZE) {	3055	if ($Coro::current != $Coro::main) {
		3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3057	unless ++$bug_warning > 10;
		3058	return;
		3059	}
		3060
		3061	$NOW = $tick_start = Event::time;
		3062
2169	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
2170	$RUNTIME += $TICK;	3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2171	}	3086	};
2172		3087
		3088	$RUNTIME += $TICK;
2173	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2174		3090
		3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3093	Coro::async_pool {
		3094	write_runtime
		3095	or warn "ERROR: unable to write runtime file: $!";
		3096	};
		3097	}
		3098
		3099	# my $AFTER = Event::time;
		3100	# warn $AFTER - $NOW;#d#
		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2175	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2177		3113
2178	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2180	},	3123	},
2181	);	3124	);
2182		3125
		3126	{
2183	IO::AIO::max_poll_time $TICK * 0.2;	3127	BDB::max_poll_time $TICK * 0.1;
2184		3128	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	3129	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	3130	fd => BDB::poll_fileno,
2187	poll => 'r',	3131	poll => 'r',
2188	prio => 5,	3132	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	3133	data => WF_AUTOCANCEL,
2195	after => 0,	3134	cb => \&BDB::poll_cb,
2196	interval => 10,	3135	);
2197	cb => sub {	3136	BDB::min_parallel 8;
2198	(Coro::unblock_sub {	3137
2199	write_runtime	3138	BDB::set_sync_prepare {
2200	or warn "ERROR: unable to write runtime file: $!";	3139	my $status;
		3140	my $current = $Coro::current;
		3141	(
		3142	sub {
		3143	$status = $!;
		3144	$current->ready; undef $current;
		3145	},
		3146	sub {
		3147	Coro::schedule while defined $current;
		3148	$! = $status;
		3149	},
		3150	)
		3151	};
		3152
		3153	unless ($DB_ENV) {
		3154	$DB_ENV = BDB::db_env_create;
		3155
		3156	cf::sync_job {
		3157	eval {
		3158	BDB::db_env_open
		3159	$DB_ENV,
		3160	$BDBDIR,
		3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3163	0666;
		3164
		3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3166
		3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3168	$DB_ENV->set_lk_detect;
		3169	};
		3170
		3171	cf::cleanup "db_env_open(db): $@" if $@;
2201	})->();	3172	};
2202	},	3173	}
2203	);	3174	}
		3175
		3176	{
		3177	IO::AIO::min_parallel 8;
		3178
		3179	undef $Coro::AIO::WATCHER;
		3180	IO::AIO::max_poll_time $TICK * 0.1;
		3181	$AIO_POLL_WATCHER = Event->io (
		3182	reentrant => 0,
		3183	data => WF_AUTOCANCEL,
		3184	fd => IO::AIO::poll_fileno,
		3185	poll => 'r',
		3186	prio => 6,
		3187	cb => \&IO::AIO::poll_cb,
		3188	);
		3189	}
		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
		3226	}
		3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
2204		3231
2205	END { cf::emergency_save }	3232	END { cf::emergency_save }
2206		3233
2207	1	3234	1
2208		3235

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