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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.290 by root, Mon Jul 2 03:15:30 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
77		117
78	#############################################################################	118	#############################################################################
79		119
80	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
81		121
…		…
88	=item $cf::RUNTIME	128	=item $cf::RUNTIME
89		129
90	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
91	every server tick.	131	every server tick.
92		132
93	=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
94		136
95	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		141
98	=item $cf::NOW	142	=item $cf::NOW
99		143
100	The time of the last (current) server tick.	144	The time of the last (current) server tick.
101		145
102	=item $cf::TICK	146	=item $cf::TICK
103		147
104	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.
105		159
106	=item %cf::CFG	160	=item %cf::CFG
107		161
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		170
111	=back	171	=back
112		172
113	=cut	173	=cut
114		174
115	BEGIN {	175	BEGIN {
116	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	177	my $msg = join "", @_;
118	utf8::encode $msg;
119		178
120	$msg .= "\n"	179	$msg .= "\n"
121	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
122		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
124	};	186	};
125	}	187	}
126		188
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		196
134	# 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
135	# within the Safe compartment.	198	# within the Safe compartment.
136	for my $pkg (qw(	199	for my $pkg (qw(
137	cf::global cf::attachable	200	cf::global cf::attachable
…		…
146		209
147	$Event::DIED = sub {	210	$Event::DIED = sub {
148	warn "error in event callback: @_";	211	warn "error in event callback: @_";
149	};	212	};
150		213
151	my %ext_pkg;	214	#############################################################################
152	my @exts;
153	my @hook;
154		215
155	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
156		217
157	=over 4	218	=over 4
158		219
159	=cut	220	=item dumpval $ref
160		221
161	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	}
162		242
163	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
164		244
165	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
166		246
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
175		248
176	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
177		250
178	=cut	251	=cut
179		252
180	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		254
185	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
186		256	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		257
207	=item cf::lock_wait $string	258	=item cf::lock_wait $string
208		259
209	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
210		261
211	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
212		263
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
216	returned.	267	returned.
217		268
218	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
219	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.
220		275
221	=cut	276	=cut
222		277
223	our %LOCK;	278	our %LOCK;
224		279
…		…
238	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
239	lock_wait $key;	294	lock_wait $key;
240		295
241	$LOCK{$key} = [];	296	$LOCK{$key} = [];
242		297
243	cf::guard {	298	Coro::guard {
244	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
246	}	301	}
247	}	302	}
248		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	$guard
		318	}
		319
249	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
250		321
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	322	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
253		325
254	=cut	326	=cut
255		327
256	sub async(&) {	328	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		329
265	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
266		331
267	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
270		336
271	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
274	fast or be very important.	340	fast or be very important.
…		…
277		343
278	sub sync_job(&) {	344	sub sync_job(&) {
279	my ($job) = @_;	345	my ($job) = @_;
280		346
281	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
282	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
284		352
285	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	354	# (but this is cancel-safe)
287	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
288		356
289	my $busy = 1;	357	my $busy = 1;
290	my @res;	358	my @res;
291		359
292	(Coro::async {	360	(async {
293	@res = eval { $job->() };	361	@res = eval { $job->() };
294	warn $@ if $@;	362	warn $@ if $@;
295	undef $busy;	363	undef $busy;
296	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
297		365
298	while ($busy) {	366	while ($busy) {
299	Coro::cede_notself;	367	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	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
302		376
303	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
304	} else {	378	} else {
305	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
306		380
307	$job->()	381	$job->()
308	}	382	}
309	}	383	}
310		384
311	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
312		386
313	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
315		389
316	=cut	390	=cut
317		391
318	sub coro(&) {	392	sub async_ext(&) {
319	my $cb = shift;	393	my $cb = shift;
320		394
321	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
322		396
323	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
325	});	399	});
326	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
327		401
328	$coro	402	$coro
329	}	403	}
330		404
331	sub write_runtime {	405	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		406
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
335	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.
336		411
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		413
341	aio_fsync $fh	414	sub fork_call(&@) {
342	and return;	415	my ($cb, @args) = @_;
343		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) {
344	close $fh	423	close $fh2;
345	or return;
346		424
347	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
348	and return;	426	$res = Coro::Storable::thaw $res;
349		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
350	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
351	}	574	}
352		575
353	=back	576	=back
354		577
355	=cut	578	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		579
477	#############################################################################	580	#############################################################################
478		581
479	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
480		583
…		…
482	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")
483	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
484		587
485	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>
486	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
487	crossfire+).	590	Crossfire TRT).
488		591
489	=over 4	592	=over 4
490		593
491	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
492		595
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	710	our @CB_MAP = ();
608		711
609	my %attachment;	712	my %attachment;
610		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
611	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
613		722
614	use sort 'stable';	723	use sort 'stable';
615		724
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
650		759
651	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		764
656	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	766	my $pkg = shift @arg;
658		767
659	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
689	}	798	}
690		799
691	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
692	} else {	801	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	803	}
695		804
696	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
697	}	806	}
698		807
…		…
700	if (ref $_[0]) {	809	if (ref $_[0]) {
701	_object_attach @_;	810	_object_attach @_;
702	} else {	811	} else {
703	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
704	}	813	}
		814	_recalc_want;
705	};	815	};
706		816
707	# all those should be optimised	817	# all those should be optimised
708	sub cf::attachable::detach {	818	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
713	reattach ($obj);	823	reattach ($obj);
714	} else {	824	} else {
715	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
716	}	826	}
		827	_recalc_want;
717	};	828	};
718		829
719	sub cf::attachable::attached {	830	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
721		832
…		…
786	# object support	897	# object support
787		898
788	sub reattach {	899	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		904
792	my $registry = $obj->registry;	905	my $registry = $obj->registry;
793		906
794	@$registry = ();	907	@$registry = ();
795		908
…		…
842	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
843		956
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	961	close $fh;
849		962
850	if (@$objs) {	963	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	969	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
858	}	971	}
859	} else {	972	} else {
860	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
892	or return;	1005	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1007	}
895		1008
896	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1011	return ($data, $av);
899	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
900		1019
901	#############################################################################	1020	#############################################################################
902	# command handling &c	1021	# command handling &c
903		1022
904	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1037	}
919		1038
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1040
922	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.
923		1046
924	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
925	called.	1048	called.
926		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
927	=cut	1061	=cut
928		1062
929	sub register_extcmd {	1063	sub register_extcmd {
930	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
931		1065
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
936	}	1073	}
937		1074
938	cf::player->attach (	1075	cf::player->attach (
939	on_command => sub {	1076	on_command => sub {
940	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1086	cf::override;
950	},	1087	},
951	on_extcmd => sub {	1088	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
953		1090
954	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1092
956	if (ref $msg) {	1093	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	1097	}
961	}	1098	}
962	} else {	1099	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		1102
966	cf::override;	1103	cf::override;
967	},	1104	},
968	);	1105	);
969		1106
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	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 " . $self->ns->{json_coder}->encode (\%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($) {
977	my ($path) = @_;	1453	my ($path) = @_;
978		1454
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1456
985	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
986		1458	if ($region->match && $path =~ $region->match) {
987	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1460	if $region->specificity > $specificity;
989		1461	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1462	}
1019		1463
1020	# remove commands	1464	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1465	}
1126		1466
1127	=back	1467	=back
1128
1129		1468
1130	=head3 cf::map	1469	=head3 cf::map
1131		1470
1132	=over 4	1471	=over 4
1133		1472
…		…
1136	package cf::map;	1475	package cf::map;
1137		1476
1138	use Fcntl;	1477	use Fcntl;
1139	use Coro::AIO;	1478	use Coro::AIO;
1140		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1141	our $MAX_RESET = 7200;	1484	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1485	our $DEFAULT_RESET = 3000;
1143		1486
1144	sub generate_random_map {	1487	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1490	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1630	}
1162		1631
1163	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1164	# all maps in C++...	1633	# all maps in C++...
1165	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1167		1636
1168	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1170	}	1639	}
1171		1640
		1641	sub decay_objects {
		1642	my ($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
1172	sub try_load_header($) {	1657	sub load_header_from($) {
1173	my ($path) = @_;	1658	my ($self, $path) = @_;
1174		1659
1175	utf8::encode $path;	1660	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1177	or return;	1665	or return;
1178		1666
1179	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
1180	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1181		1713
1182	$map->load_header ($path)	1714	$self->{deny_reset} = 1
1183	or return;	1715	if $self->no_reset;
1184		1716
1185	$map->{load_path} = $path;	1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
1186		1719
1187	$map	1720	1
1188	}	1721	}
1189		1722
1190	sub find_map;	1723	sub find;
1191	sub find_map {	1724	sub find {
1192	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1193		1726
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1728
1199	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1200		1730
1201	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1203		1733	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1734	or return;
1219		1735
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1737
1233	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;
1234	$map->reset;	1744	$map->reset;
1235	undef $guard;	1745	undef $guard;
1236	$map = find_map $path	1746	return find $path;
1237	or return;
1238	}	1747	}
1239		1748
1240	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1241	}	1750	}
1242	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1243		1755
1244	sub load {	1756	sub load {
1245	my ($self) = @_;	1757	my ($self) = @_;
1246		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1247	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1249		1765
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1767
1252	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1253		1769
1254	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1255	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1776	or return;
1257		1777
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1779	if delete $self->{load_original};
1260		1780
1261	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1782	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1784	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1266	}	1786	}
1267	}	1787	}
1268		1788
		1789	Coro::cede;
1269	# now do the right thing for maps	1790	# now do the right thing for maps
1270	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1281	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;
1282	$self->activate;	1803	$self->activate;
1283	}	1804	}
1284		1805
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1807	}
1287		1808
1288	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	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1289	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1290		1850
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1292		1853
1293	cf::sync_job {	1854	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1295	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;
1296	$map->load;	1878	$map->load;
1297	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1298	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1299	}	1888	}
1300		1889
1301	sub save {	1890	sub save {
1302	my ($self) = @_;	1891	my ($self) = @_;
1303		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
1304	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1305		1896
1306	return unless $self->dirty;	1897	return unless $self->dirty;
1307		1898
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1901
1311	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1312		1903
1313	return if $self->{deny_save};	1904	return if $self->{deny_save};
1314		1905
		1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1315	if ($uniq) {	1912	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1915	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1917	}
1321	}	1918	}
1322		1919
1323	sub swap_out {	1920	sub swap_out {
1324	my ($self) = @_;	1921	my ($self) = @_;
1325		1922
1326	# save first because save cedes	1923	# save first because save cedes
1327	$self->save;	1924	$self->save;
		1925
		1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1927
1329	return if $self->players;	1928	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1930	return if $self->{deny_save};
1332		1931
…		…
1336		1935
1337	sub reset_at {	1936	sub reset_at {
1338	my ($self) = @_;	1937	my ($self) = @_;
1339		1938
1340	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1343		1941
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1944
…		…
1351	my ($self) = @_;	1949	my ($self) = @_;
1352		1950
1353	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1354	}	1952	}
1355		1953
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1954	sub reset {
1378	my ($self) = @_;	1955	my ($self) = @_;
1379		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1380	return if $self->players;	1959	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		1960
1383	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	}
1384		1972
1385	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1386		1976
1387	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1388		1978
1389	$self->unlink_save;	1979	$self->unlink_save;
1390	$self->destroy;	1980	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1394		1984
1395	sub nuke {	1985	sub nuke {
1396	my ($self) = @_;	1986	my ($self) = @_;
1397		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1401	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1402	}	2001	}
1403		2002
1404	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2004
1407	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1409	}	2011	[
1410		2012	map {
1411	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1412	}	2019	}
1413		2020
1414	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2022
1417	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1418		2025
1419	cf::sync_job {	2026	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2027
1424	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	]
1425	}	2055	}
1426		2056
1427	package cf;	2057	package cf;
1428		2058
1429	=back	2059	=back
1430		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
1431		2087
1432	=head3 cf::object::player	2088	=head3 cf::object::player
1433		2089
1434	=over 4	2090	=over 4
1435		2091
…		…
1449		2105
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2107
1452	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1454	} 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 {
1455	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1457	}	2127	}
1458	}	2128	}
1459		2129
1460	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1461		2131
…		…
1475		2145
1476	=item $player_object->enter_link	2146	=item $player_object->enter_link
1477		2147
1478	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}>).
1479		2149
1480	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
1481	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1482		2152
		2153	Will never block.
		2154
1483	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1484		2156
1485	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2160	fails, to the emergency map position.
1489		2161
1490	Might block.	2162	Might block.
1491		2163
1492	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($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	$LINK_MAP
		2174	}
1493		2175
1494	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2177	my ($self) = @_;
1496		2178
1497	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1498		2180
1499	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2182
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1503		2185
1504	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2187	}
1506		2188
1507	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1509		2193
1510	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1511		2195
1512	unless ($map) {	2196	unless ($map) {
1513	# restore original map position	2197	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1516		2200
1517	unless ($map) {	2201	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1521	}	2205	}
1522	}	2206	}
1523		2207
1524	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1530		2214
1531	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1532		2217
		2218	return unless $self->contr->active;
1533	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1535	}	2223	}
1536		2224
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1566		2226
1567	=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.
1568		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1569	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1570	my ($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;
1571		2241
1572	$self->enter_link;	2242	$self->enter_link;
1573		2243
1574	(cf::async {	2244	(async {
1575	$path = new cf::path $path;	2245	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1579		2250	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1581	# if $map;
1582
1583	$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	}
1584		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};
1585	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1586	})->prio (1);	2267	})->prio (1);
1587	}	2268	}
1588		2269
1589	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1590		2271
…		…
1592		2273
1593	sub parse_random_map_params {	2274	sub parse_random_map_params {
1594	my ($spec) = @_;	2275	my ($spec) = @_;
1595		2276
1596	my $rmp = { # defaults	2277	my $rmp = { # defaults
1597	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1599	};	2282	};
1600		2283
1601	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1603		2286
…		…
1607	$rmp	2290	$rmp
1608	}	2291	}
1609		2292
1610	sub prepare_random_map {	2293	sub prepare_random_map {
1611	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2297
1613	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2300	# that depends on the exit object
1616		2301
1617	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1618		2303
1619	if ($exit->map) {	2304	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1624	}	2309	}
1625		2310
1626	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1627		2312
1628	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1630		2316
1631	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) {
1632	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;
1633		2321
1634	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2323	$exit->msg (undef);
1636	}	2324	}
1637	}	2325	}
…		…
1639	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1641		2329
1642	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1643		2331
		2332	if ($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
1644	$self->enter_link;	2343	$self->enter_link;
1645		2344
1646	(cf::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2347	unless (eval {
1648	prepare_random_map $exit	2348	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2349
1654	1;	2350	1;
1655	}) {	2351	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "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. "
1658	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2356
1661	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2358	$self->leave_link;
1663	}	2359	}
1664	})->prio (1);	2360	})->prio (1);
…		…
1677		2373
1678	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1680		2376
1681	utf8::encode $text;	2377	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2379	}
1684		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 " . $self->{json_coder}->encode ([$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 " . $self->{json_coder}->encode (\%msg));
		2430	}
1685		2431
1686	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1687		2433
1688	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1689	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>,
1690	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>.
1691		2437
1692	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
1693	reliable at some point in the future.	2439	become reliable at some point in the future.
1694		2440
1695	=cut	2441	=cut
1696		2442
1697	sub cf::client::query {	2443	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2452	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2454
1709	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1711	}	2459	}
1712		2460
1713	cf::client->attach (	2461	cf::client->attach (
		2462	on_connect => sub {
		2463	my ($ns) = @_;
		2464
		2465	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2466	},
1714	on_reply => sub {	2467	on_reply => sub {
1715	my ($ns, $msg) = @_;	2468	my ($ns, $msg) = @_;
1716		2469
1717	# this weird shuffling is so that direct followup queries	2470	# this weird shuffling is so that direct followup queries
1718	# get handled first	2471	# get handled first
1719	my $queue = delete $ns->{query_queue}	2472	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2473	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2474
1722	(shift @$queue)->[1]->($msg);	2475	(shift @$queue)->[1]->($msg);
		2476	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2477
1724	push @{ $ns->{query_queue} }, @$queue;	2478	push @{ $ns->{query_queue} }, @$queue;
1725		2479
1726	if (@{ $ns->{query_queue} } == @$queue) {	2480	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2481	if (@$queue) {
…		…
1729	} else {	2483	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2484	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2485	}
1732	}	2486	}
1733	},	2487	},
		2488	on_exticmd => sub {
		2489	my ($ns, $buf) = @_;
		2490
		2491	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2492
		2493	if (ref $msg) {
		2494	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2495	if (my %reply = $cb->($ns, $msg)) {
		2496	$reply{msgid} = $msg->{msgid};
		2497	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2498	}
		2499	}
		2500	} else {
		2501	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2502	}
		2503
		2504	cf::override;
		2505	},
1734	);	2506	);
1735		2507
1736	=item $client->coro (\&cb)	2508	=item $client->async (\&cb)
1737		2509
1738	Create a new coroutine, running the specified callback. The coroutine will	2510	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2511	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2512	or loss of connection).
1741		2513
1742	=cut	2514	=cut
1743		2515
1744	sub cf::client::coro {	2516	sub cf::client::async {
1745	my ($self, $cb) = @_;	2517	my ($self, $cb) = @_;
1746		2518
1747	my $coro = &cf::async ($cb);	2519	my $coro = &Coro::async ($cb);
1748		2520
1749	$coro->on_destroy (sub {	2521	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2522	delete $self->{_coro}{$coro+0};
1751	});	2523	});
1752		2524
…		…
1785		2557
1786	# here we export the classes and methods available to script code	2558	# here we export the classes and methods available to script code
1787		2559
1788	=pod	2560	=pod
1789		2561
1790	The following fucntions and emthods are available within a safe environment:	2562	The following functions and methods are available within a safe environment:
1791		2563
1792	cf::object contr pay_amount pay_player map	2564	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2565	cf::object::player player
1794	cf::player peaceful	2566	cf::player peaceful
1795	cf::map trigger	2567	cf::map trigger
…		…
1876	=back	2648	=back
1877		2649
1878	=cut	2650	=cut
1879		2651
1880	#############################################################################	2652	#############################################################################
		2653	# the server's init and main functions
1881		2654
1882	=head2 EXTENSION DATABASE SUPPORT	2655	sub load_facedata($) {
		2656	my ($path) = @_;
1883		2657
1884	Crossfire maintains a very simple database for extension use. It can	2658	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2659
1888	The parameter C<$family> should best start with the name of the extension	2660	my $facedata;
1889	using it, it should be unique.	2661	0 < aio_load $path, $facedata
		2662	or die "$path: $!";
1890		2663
1891	=over 4	2664	$facedata = Coro::Storable::thaw $facedata;
1892		2665
1893	=item $hashref = cf::db_get $family	2666	$facedata->{version} == 2
		2667	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2668
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2669	{
		2670	my $faces = $facedata->{faceinfo};
1931		2671
1932	my $pid;	2672	while (my ($face, $info) = each %$faces) {
1933		2673	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1934	sub db_save() {	2674	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1935	waitpid $pid, 0 if $pid;	2675	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1936	if (0 == ($pid = fork)) {	2676	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937	$DB->{_meta}{version} = 1;	2677	Coro::cede;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2678	}
1980	);
1981	}
1982		2679
1983	#############################################################################	2680	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2681	next unless $info->{smooth};
		2682	my $idx = cf::face::find $face
		2683	or next;
		2684	if (my $smooth = cf::face::find $info->{smooth}) {
		2685	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2686	} else {
		2687	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2688	}
		2689	Coro::cede;
		2690	}
		2691	}
		2692
		2693	{
		2694	my $anims = $facedata->{animinfo};
		2695
		2696	while (my ($anim, $info) = each %$anims) {
		2697	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2698	Coro::cede;
		2699	}
		2700
		2701	cf::anim::invalidate_all; # d'oh
		2702	}
		2703
		2704	1
		2705	}
		2706
		2707	sub reload_regions {
		2708	load_resource_file "$MAPDIR/regions"
		2709	or die "unable to load regions file\n";
		2710	}
		2711
		2712	sub reload_facedata {
		2713	load_facedata "$DATADIR/facedata"
		2714	or die "unable to load facedata\n";
		2715	}
		2716
		2717	sub reload_archetypes {
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	#d# NEED to laod twice to resolve forward references
		2721	# this really needs to be done in an extra post-pass
		2722	# (which needs to be synchronous, so solve it differently)
		2723	load_resource_file "$DATADIR/archetypes"
		2724	or die "unable to load archetypes\n";
		2725	}
		2726
		2727	sub reload_treasures {
		2728	load_resource_file "$DATADIR/treasures"
		2729	or die "unable to load treasurelists\n";
		2730	}
		2731
		2732	sub reload_resources {
		2733	warn "reloading resource files...\n";
		2734
		2735	reload_regions;
		2736	reload_facedata;
		2737	#reload_archetypes;#d#
		2738	reload_archetypes;
		2739	reload_treasures;
		2740
		2741	warn "finished reloading resource files\n";
		2742	}
		2743
		2744	sub init {
		2745	reload_resources;
		2746	}
1985		2747
1986	sub cfg_load {	2748	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2749	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2750	or return;
1989		2751
1990	local $/;	2752	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2753	*CFG = YAML::Syck::Load <$fh>;
1992		2754
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2755	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2756
		2757	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2758	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2759
1995	if (exists $CFG{mlockall}) {	2760	if (exists $CFG{mlockall}) {
1996	eval {	2761	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2762	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2763	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2764	};
2000	warn $@ if $@;	2765	warn $@ if $@;
2001	}	2766	}
2002	}	2767	}
2003		2768
2004	sub main {	2769	sub main {
2005	# we must not ever block the main coroutine	2770	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2771	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2772	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2773	(async {
2009	Event::one_event;	2774	Event::one_event;
2010	})->();	2775	})->prio (Coro::PRIO_MAX);
2011	};	2776	};
2012		2777
2013	cfg_load;	2778	cfg_load;
2014	db_load;	2779	db_init;
2015	load_extensions;	2780	load_extensions;
		2781
		2782	$TICK_WATCHER->start;
2016	Event::loop;	2783	Event::loop;
2017	}	2784	}
2018		2785
2019	#############################################################################	2786	#############################################################################
2020	# initialisation	2787	# initialisation and cleanup
2021		2788
		2789	# install some emergency cleanup handlers
		2790	BEGIN {
		2791	for my $signal (qw(INT HUP TERM)) {
		2792	Event->signal (
		2793	reentrant => 0,
		2794	data => WF_AUTOCANCEL,
		2795	signal => $signal,
		2796	prio => 0,
		2797	cb => sub {
		2798	cf::cleanup "SIG$signal";
		2799	},
		2800	);
		2801	}
		2802	}
		2803
		2804	sub write_runtime {
		2805	my $runtime = "$LOCALDIR/runtime";
		2806
		2807	# first touch the runtime file to show we are still running:
		2808	# the fsync below can take a very very long time.
		2809
		2810	IO::AIO::aio_utime $runtime, undef, undef;
		2811
		2812	my $guard = cf::lock_acquire "write_runtime";
		2813
		2814	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2815	or return;
		2816
		2817	my $value = $cf::RUNTIME + 90 + 10;
		2818	# 10 is the runtime save interval, for a monotonic clock
		2819	# 60 allows for the watchdog to kill the server.
		2820
		2821	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2822	and return;
		2823
		2824	# always fsync - this file is important
		2825	aio_fsync $fh
		2826	and return;
		2827
		2828	# touch it again to show we are up-to-date
		2829	aio_utime $fh, undef, undef;
		2830
		2831	close $fh
		2832	or return;
		2833
		2834	aio_rename "$runtime~", $runtime
		2835	and return;
		2836
		2837	warn "runtime file written.\n";
		2838
		2839	1
		2840	}
		2841
		2842	sub emergency_save() {
		2843	my $freeze_guard = cf::freeze_mainloop;
		2844
		2845	warn "enter emergency perl save\n";
		2846
		2847	cf::sync_job {
		2848	# use a peculiar iteration method to avoid tripping on perl
		2849	# refcount bugs in for. also avoids problems with players
		2850	# and maps saved/destroyed asynchronously.
		2851	warn "begin emergency player save\n";
		2852	for my $login (keys %cf::PLAYER) {
		2853	my $pl = $cf::PLAYER{$login} or next;
		2854	$pl->valid or next;
		2855	$pl->save;
		2856	}
		2857	warn "end emergency player save\n";
		2858
		2859	warn "begin emergency map save\n";
		2860	for my $path (keys %cf::MAP) {
		2861	my $map = $cf::MAP{$path} or next;
		2862	$map->valid or next;
		2863	$map->save;
		2864	}
		2865	warn "end emergency map save\n";
		2866
		2867	warn "begin emergency database checkpoint\n";
		2868	BDB::db_env_txn_checkpoint $DB_ENV;
		2869	warn "end emergency database checkpoint\n";
		2870	};
		2871
		2872	warn "leave emergency perl save\n";
		2873	}
		2874
		2875	sub post_cleanup {
		2876	my ($make_core) = @_;
		2877
		2878	warn Carp::longmess "post_cleanup backtrace"
		2879	if $make_core;
		2880	}
		2881
2022	sub reload() {	2882	sub do_reload_perl() {
2023	# can/must only be called in main	2883	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2884	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2885	warn "can only reload from main coroutine";
2026	return;	2886	return;
2027	}	2887	}
2028		2888
2029	warn "reloading...";	2889	warn "reloading...";
2030		2890
2031	local $FREEZE = 1;	2891	warn "entering sync_job";
		2892
		2893	cf::sync_job {
		2894	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2895	cf::emergency_save;
		2896	cf::write_runtime; # external watchdog should not bark
2033		2897
2034	eval {	2898	warn "syncing database to disk";
		2899	BDB::db_env_txn_checkpoint $DB_ENV;
		2900
2035	# if anything goes wrong in here, we should simply crash as we already saved	2901	# if anything goes wrong in here, we should simply crash as we already saved
2036		2902
2037	# cancel all watchers	2903	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2904	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2905	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2906	}
2041		2907
		2908	warn "flushing outstanding aio requests";
		2909	for (;;) {
		2910	BDB::flush;
		2911	IO::AIO::flush;
		2912	Coro::cede;
		2913	last unless IO::AIO::nreqs || BDB::nreqs;
		2914	warn "iterate...";
		2915	}
		2916
		2917	++$RELOAD;
		2918
2042	# cancel all extension coros	2919	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2920	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2921	%EXT_CORO = ();
2045		2922
2046	# unload all extensions	2923	warn "removing commands";
2047	for (@exts) {	2924	%COMMAND = ();
		2925
		2926	warn "removing ext/exti commands";
		2927	%EXTCMD = ();
		2928	%EXTICMD = ();
		2929
		2930	warn "unloading/nuking all extensions";
		2931	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2932	warn "... unloading $pkg";
2049	unload_extension $_;	2933
		2934	if (my $cb = $pkg->can ("unload")) {
		2935	eval {
		2936	$cb->($pkg);
		2937	1
		2938	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2939	}
2051		2940
		2941	warn "... nuking $pkg";
		2942	Symbol::delete_package $pkg;
		2943	}
		2944
2052	# unload all modules loaded from $LIBDIR	2945	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2946	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2947	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2948
2056	warn "removing <$k>";	2949	warn "... unloading $k";
2057	delete $INC{$k};	2950	delete $INC{$k};
2058		2951
2059	$k =~ s/\.pm$//;	2952	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2953	$k =~ s/\//::/g;
2061		2954
…		…
2064	}	2957	}
2065		2958
2066	Symbol::delete_package $k;	2959	Symbol::delete_package $k;
2067	}	2960	}
2068		2961
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2962	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2963	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2964	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2965
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2966	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2967	delete $INC{"cf.pm"};
		2968	delete $INC{"cf/pod.pm"};
2082		2969
2083	# don't, removes xs symbols, too,	2970	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2971	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2972	#Symbol::delete_package __PACKAGE__;
2086		2973
2087	# reload cf.pm	2974	warn "unload completed, starting to reload now";
		2975
2088	warn "reloading cf.pm";	2976	warn "reloading cf.pm";
2089	require cf;	2977	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2978	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2979
2092	# load config and database again	2980	warn "loading config and database again";
2093	cf::cfg_load;	2981	cf::cfg_load;
2094	cf::db_load;
2095		2982
2096	# load extensions
2097	warn "load extensions";	2983	warn "loading extensions";
2098	cf::load_extensions;	2984	cf::load_extensions;
2099		2985
2100	# reattach attachments to objects	2986	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2987	_global_reattach; # objects, sockets
2102	_global_reattach;	2988	warn "reattaching attachments to maps";
2103	};	2989	reattach $_ for values %MAP;
		2990	warn "reattaching attachments to players";
		2991	reattach $_ for values %PLAYER;
2104		2992
2105	if ($@) {	2993	warn "leaving sync_job";
		2994
		2995	1
		2996	} or do {
2106	warn $@;	2997	warn $@;
2107	warn "error while reloading, exiting.";	2998	warn "error while reloading, exiting.";
2108	exit 1;	2999	exit 1;
2109	}	3000	};
2110		3001
2111	warn "reloaded successfully";	3002	warn "reloaded";
2112	};	3003	};
2113		3004
2114	#############################################################################	3005	our $RELOAD_WATCHER; # used only during reload
2115		3006
2116	unless ($LINK_MAP) {	3007	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3008	# doing reload synchronously and two reloads happen back-to-back,
		3009	# coro crashes during coro_state_free->destroy here.
2118		3010
2119	$LINK_MAP->width (41);	3011	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3012	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3013	after => 0,
		3014	data => WF_AUTOCANCEL,
2129	cb => sub {	3015	cb => sub {
2130	$_[0]->w->cancel;	3016	do_reload_perl;
2131		3017	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3018	},
2150		3019	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3020	}
2156
2157	register "<global>", __PACKAGE__;
2158		3021
2159	register_command "reload" => sub {	3022	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3023	my ($who, $arg) = @_;
2161		3024
2162	if ($who->flag (FLAG_WIZ)) {	3025	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3026	$who->message ("reloading server.");
		3027	async { reload_perl };
2166	}	3028	}
2167	};	3029	};
2168		3030
2169	unshift @INC, $LIBDIR;	3031	unshift @INC, $LIBDIR;
2170		3032
		3033	my $bug_warning = 0;
		3034
		3035	our @WAIT_FOR_TICK;
		3036	our @WAIT_FOR_TICK_BEGIN;
		3037
		3038	sub wait_for_tick {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	sub wait_for_tick_begin {
		3048	return unless $TICK_WATCHER->is_active;
		3049	return if $Coro::current == $Coro::main;
		3050
		3051	my $signal = new Coro::Signal;
		3052	push @WAIT_FOR_TICK_BEGIN, $signal;
		3053	$signal->wait;
		3054	}
		3055
		3056	my $min = 1e6;#d#
		3057	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3058	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3059	reentrant => 0,
		3060	parked => 1,
2173	prio => 0,	3061	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3062	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3063	data => WF_AUTOCANCEL,
2176	cb => sub {	3064	cb => sub {
2177	unless ($FREEZE) {	3065	if ($Coro::current != $Coro::main) {
		3066	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3067	unless ++$bug_warning > 10;
		3068	return;
		3069	}
		3070
		3071	$NOW = $tick_start = Event::time;
		3072
2178	cf::server_tick; # one server iteration	3073	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	3074
		3075	0 && sync_job {#d#
		3076	for(1..10) {
		3077	my $t = Event::time;
		3078	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3079	or die;
		3080
		3081	$map->width (50);
		3082	$map->height (50);
		3083	$map->alloc;
		3084	$map->_load_objects ("/tmp/x.map", 1);
		3085	my $t = Event::time - $t;
		3086
		3087	#next unless $t < 0.0013;#d#
		3088	if ($t < $min) {
		3089	$min = $t;
		3090	}
		3091	$avg = $avg * 0.99 + $t * 0.01;
		3092	}
		3093	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3094	exit 0;
		3095	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	3096	};
2181		3097
		3098	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	3099	$NEXT_TICK += $TICK;
2183		3100
		3101	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3102	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3103	Coro::async_pool {
		3104	write_runtime
		3105	or warn "ERROR: unable to write runtime file: $!";
		3106	};
		3107	}
		3108
		3109	# my $AFTER = Event::time;
		3110	# warn $AFTER - $NOW;#d#
		3111
		3112	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3113	$sig->send;
		3114	}
		3115	while (my $sig = shift @WAIT_FOR_TICK) {
		3116	$sig->send;
		3117	}
		3118
		3119	$NOW = Event::time;
		3120
2184	# if we are delayed by four ticks or more, skip them all	3121	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3122	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3123
2187	$TICK_WATCHER->at ($NEXT_TICK);	3124	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3125	$TICK_WATCHER->start;
		3126
		3127	$LOAD = ($NOW - $tick_start) / $TICK;
		3128	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3129
		3130	_post_tick;
		3131
		3132
2189	},	3133	},
2190	);	3134	);
2191		3135
		3136	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	3137	BDB::max_poll_time $TICK * 0.1;
2193		3138	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3139	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3140	fd => BDB::poll_fileno,
2196	poll => 'r',	3141	poll => 'r',
2197	prio => 5,	3142	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3143	data => WF_AUTOCANCEL,
2204	after => 0,	3144	cb => \&BDB::poll_cb,
2205	interval => 10,	3145	);
2206	cb => sub {	3146	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	3147
2208	write_runtime	3148	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	3149	my $status;
		3150	my $current = $Coro::current;
		3151	(
		3152	sub {
		3153	$status = $!;
		3154	$current->ready; undef $current;
		3155	},
		3156	sub {
		3157	Coro::schedule while defined $current;
		3158	$! = $status;
		3159	},
		3160	)
		3161	};
		3162
		3163	unless ($DB_ENV) {
		3164	$DB_ENV = BDB::db_env_create;
		3165
		3166	cf::sync_job {
		3167	eval {
		3168	BDB::db_env_open
		3169	$DB_ENV,
		3170	$BDBDIR,
		3171	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3172	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3173	0666;
		3174
		3175	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3176
		3177	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3178	$DB_ENV->set_lk_detect;
		3179	};
		3180
		3181	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	3182	};
2211	},	3183	}
2212	);	3184	}
		3185
		3186	{
		3187	IO::AIO::min_parallel 8;
		3188
		3189	undef $Coro::AIO::WATCHER;
		3190	IO::AIO::max_poll_time $TICK * 0.1;
		3191	$AIO_POLL_WATCHER = Event->io (
		3192	reentrant => 0,
		3193	data => WF_AUTOCANCEL,
		3194	fd => IO::AIO::poll_fileno,
		3195	poll => 'r',
		3196	prio => 6,
		3197	cb => \&IO::AIO::poll_cb,
		3198	);
		3199	}
		3200
		3201	my $_log_backtrace;
		3202
		3203	sub _log_backtrace {
		3204	my ($msg, @addr) = @_;
		3205
		3206	$msg =~ s/\n//;
		3207
		3208	# limit the # of concurrent backtraces
		3209	if ($_log_backtrace < 2) {
		3210	++$_log_backtrace;
		3211	async {
		3212	my @bt = fork_call {
		3213	@addr = map { sprintf "%x", $_ } @addr;
		3214	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3215	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3216	or die "addr2line: $!";
		3217
		3218	my @funcs;
		3219	my @res = <$fh>;
		3220	chomp for @res;
		3221	while (@res) {
		3222	my ($func, $line) = splice @res, 0, 2, ();
		3223	push @funcs, "[$func] $line";
		3224	}
		3225
		3226	@funcs
		3227	};
		3228
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] $_\n" for @bt;
		3231	--$_log_backtrace;
		3232	};
		3233	} else {
		3234	LOG llevInfo, "[ABT] $msg\n";
		3235	LOG llevInfo, "[ABT] [suppressed]\n";
		3236	}
		3237	}
		3238
		3239	# load additional modules
		3240	use cf::pod;
2213		3241
2214	END { cf::emergency_save }	3242	END { cf::emergency_save }
2215		3243
2216	1	3244	1
2217		3245

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