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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.311 by root, Fri Jul 20 16:11:10 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	132	every server tick.
91		133
92	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
109		177
110	=back	178	=back
111		179
112	=cut	180	=cut
113		181
114	BEGIN {	182	BEGIN {
115	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	184	my $msg = join "", @_;
117	utf8::encode $msg;
118		185
119	$msg .= "\n"	186	$msg .= "\n"
120	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
121		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
125		195
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		203
133	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	205	# within the Safe compartment.
135	for my $pkg (qw(	206	for my $pkg (qw(
136	cf::global cf::attachable	207	cf::global cf::attachable
…		…
145		216
146	$Event::DIED = sub {	217	$Event::DIED = sub {
147	warn "error in event callback: @_";	218	warn "error in event callback: @_";
148	};	219	};
149		220
150	my %ext_pkg;	221	#############################################################################
151	my @exts;
152	my @hook;
153		222
154	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
155		224
156	=over 4	225	=over 4
157		226
158	=cut	227	=item dumpval $ref
159		228
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
161		249
162	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
163		251
164	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
165		253
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
174		255
175	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
176		257
177	=cut	258	=cut
178		259
179	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
181	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
183		264
184	=item cf::lock_wait $string	265	=item cf::lock_wait $string
185		266
186	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
187		268
…		…
193	returned.	274	returned.
194		275
195	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
197		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
198	=cut	283	=cut
199		284
200	our %LOCK;	285	our %LOCK;
201		286
202	sub lock_wait($) {	287	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
223	}	308	}
224	}	309	}
225		310
226	=item cf::async { BLOCK }	311	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	312	my ($key) = @_;
235		313
236	Coro::async {	314	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	315	}
241		316
242	sub freeze_mainloop {	317	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
244		319
245	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
246	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
247	$guard	324	$guard
248	}	325	}
249		326
		327	=item cf::async { BLOCK }
		328
		329	Currently the same as Coro::async_pool, meaning you cannot use
		330	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		331	thing you are allowed to do is call C<prio> on it.
		332
		333	=cut
		334
		335	BEGIN { *async = \&Coro::async_pool }
		336
250	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
251		338
252	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
255		343
256	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
259	fast or be very important.	347	fast or be very important.
…		…
262		350
263	sub sync_job(&) {	351	sub sync_job(&) {
264	my ($job) = @_;	352	my ($job) = @_;
265		353
266	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
267	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
269		359
270	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	361	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	362	my $freeze_guard = freeze_mainloop;
273		363
274	my $busy = 1;	364	my $busy = 1;
275	my @res;	365	my @res;
276		366
277	(Coro::async {	367	(async {
278	@res = eval { $job->() };	368	@res = eval { $job->() };
279	warn $@ if $@;	369	warn $@ if $@;
280	undef $busy;	370	undef $busy;
281	})->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
282		372
283	while ($busy) {	373	while ($busy) {
284	Coro::cede_notself;	374	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	375	}
		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
287		383
288	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
289	} else {	385	} else {
290	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
291		387
292	$job->()	388	$job->()
293	}	389	}
294	}	390	}
295		391
296	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
297		393
298	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
300		396
301	=cut	397	=cut
302		398
303	sub coro(&) {	399	sub async_ext(&) {
304	my $cb = shift;	400	my $cb = shift;
305		401
306	my $coro = &cf::async ($cb);	402	my $coro = &Coro::async ($cb);
307		403
308	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
310	});	406	});
311	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
312		408
313	$coro	409	$coro
314	}	410	}
315		411
316	sub write_runtime {	412	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		413
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
320	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
321		418
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	419	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		420
326	aio_fsync $fh	421	sub _store_scalar {
327	and return;	422	open my $fh, ">", \my $buf
328		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
329	close $fh	425	close $fh;
330	or return;
331		426
332	aio_rename "$runtime~", $runtime	427	$buf
333	and return;	428	}
334		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
335	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	599	}
337		600
338	=back	601	=back
339		602
340	=cut	603	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		604
462	#############################################################################	605	#############################################################################
463		606
464	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
465		608
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
469		612
470	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	615	Crossfire TRT).
473		616
474	=over 4	617	=over 4
475		618
476	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
477		620
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	735	our @CB_MAP = ();
593		736
594	my %attachment;	737	my %attachment;
595		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
596	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
598		747
599	use sort 'stable';	748	use sort 'stable';
600		749
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
635		784
636	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		789
641	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	791	my $pkg = shift @arg;
643		792
644	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
674	}	823	}
675		824
676	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
677	} else {	826	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	828	}
680		829
681	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
682	}	831	}
683		832
…		…
685	if (ref $_[0]) {	834	if (ref $_[0]) {
686	_object_attach @_;	835	_object_attach @_;
687	} else {	836	} else {
688	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
689	}	838	}
		839	_recalc_want;
690	};	840	};
691		841
692	# all those should be optimised	842	# all those should be optimised
693	sub cf::attachable::detach {	843	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
698	reattach ($obj);	848	reattach ($obj);
699	} else {	849	} else {
700	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
701	}	851	}
		852	_recalc_want;
702	};	853	};
703		854
704	sub cf::attachable::attached {	855	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
706		857
…		…
721	";	872	";
722	die if $@;	873	die if $@;
723	}	874	}
724		875
725	our $override;	876	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		878
728	sub override {	879	sub override {
729	$override = 1;	880	$override = 1;
730	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
731	}	882	}
732		883
733	sub do_invoke {	884	sub do_invoke {
734	my $event = shift;	885	my $event = shift;
735	my $callbacks = shift;	886	my $callbacks = shift;
736		887
737	@invoke_results = ();	888	@INVOKE_RESULTS = ();
738		889
739	local $override;	890	local $override;
740		891
741	for (@$callbacks) {	892	for (@$callbacks) {
742	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
759		910
760	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
761		912
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		916
766	=back	917	=back
767		918
768	=cut	919	=cut
769		920
…		…
771	# object support	922	# object support
772		923
773	sub reattach {	924	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	925	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	926	my ($obj) = @_;
		927
		928	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		929
777	my $registry = $obj->registry;	930	my $registry = $obj->registry;
778		931
779	@$registry = ();	932	@$registry = ();
780		933
…		…
827	$filename, length $$rdata, scalar @$objs;	980	$filename, length $$rdata, scalar @$objs;
828		981
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	984	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	985	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	986	close $fh;
834		987
835	if (@$objs) {	988	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	989	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	990	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	991	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	992	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	993	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	994	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	995	aio_rename "$filename.pst~", "$filename.pst";
843	}	996	}
844	} else {	997	} else {
845	aio_unlink "$filename.pst";	998	aio_unlink "$filename.pst";
…		…
877	or return;	1030	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1032	}
880		1033
881	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	1036	return ($data, $av);
884	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
885		1044
886	#############################################################################	1045	#############################################################################
887	# command handling &c	1046	# command handling &c
888		1047
889	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1062	}
904		1063
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1065
907	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
908		1071
909	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
910	called.	1073	called.
911		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
912	=cut	1086	=cut
913		1087
914	sub register_extcmd {	1088	sub register_extcmd {
915	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
916		1090
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
921	}	1098	}
922		1099
923	cf::player->attach (	1100	cf::player->attach (
924	on_command => sub {	1101	on_command => sub {
925	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1111	cf::override;
935	},	1112	},
936	on_extcmd => sub {	1113	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
938		1115
939	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1117
941	if (ref $msg) {	1118	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	1122	}
946	}	1123	}
947	} else {	1124	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1125	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		1127
951	cf::override;	1128	cf::override;
952	},	1129	},
953	);	1130	);
954		1131
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
		1136	for my $path (<$LIBDIR/*.ext>) {
		1137	next unless -r $path;
		1138
		1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
		1196	}
		1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
		1202	};
		1203	}
		1204
		1205	#############################################################################
		1206
		1207	=back
		1208
		1209	=head2 CORE EXTENSIONS
		1210
		1211	Functions and methods that extend core crossfire objects.
		1212
		1213	=cut
		1214
		1215	package cf::player;
		1216
		1217	use Coro::AIO;
		1218
		1219	=head3 cf::player
		1220
		1221	=over 4
		1222
		1223	=item cf::player::find $login
		1224
		1225	Returns the given player object, loading it if necessary (might block).
		1226
		1227	=cut
		1228
		1229	sub playerdir($) {
		1230	"$PLAYERDIR/"
		1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1232	}
		1233
		1234	sub path($) {
		1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1236
		1237	(playerdir $login) . "/playerdata"
		1238	}
		1239
		1240	sub find_active($) {
		1241	$cf::PLAYER{$_[0]}
		1242	and $cf::PLAYER{$_[0]}->active
		1243	and $cf::PLAYER{$_[0]}
		1244	}
		1245
		1246	sub exists($) {
		1247	my ($login) = @_;
		1248
		1249	$cf::PLAYER{$login}
		1250	or cf::sync_job { !aio_stat path $login }
		1251	}
		1252
		1253	sub find($) {
		1254	return $cf::PLAYER{$_[0]} || do {
		1255	my $login = $_[0];
		1256
		1257	my $guard = cf::lock_acquire "user_find:$login";
		1258
		1259	$cf::PLAYER{$_[0]} || do {
		1260	# rename old playerfiles to new ones
		1261	#TODO: remove when no longer required
		1262	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1263	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1264	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1265	aio_unlink +(playerdir $login) . "/$login.pl";
		1266
		1267	my $pl = load_pl path $login
		1268	or return;
		1269	$cf::PLAYER{$login} = $pl
		1270	}
		1271	}
		1272	}
		1273
		1274	sub save($) {
		1275	my ($pl) = @_;
		1276
		1277	return if $pl->{deny_save};
		1278
		1279	my $path = path $pl;
		1280	my $guard = cf::lock_acquire "user_save:$path";
		1281
		1282	return if $pl->{deny_save};
		1283
		1284	aio_mkdir playerdir $pl, 0770;
		1285	$pl->{last_save} = $cf::RUNTIME;
		1286
		1287	$pl->save_pl ($path);
		1288	Coro::cede;
		1289	}
		1290
		1291	sub new($) {
		1292	my ($login) = @_;
		1293
		1294	my $self = create;
		1295
		1296	$self->ob->name ($login);
		1297	$self->{deny_save} = 1;
		1298
		1299	$cf::PLAYER{$login} = $self;
		1300
		1301	$self
		1302	}
		1303
		1304	=item $pl->quit_character
		1305
		1306	Nukes the player without looking back. If logged in, the connection will
		1307	be destroyed. May block for a long time.
		1308
		1309	=cut
		1310
		1311	sub quit_character {
		1312	my ($pl) = @_;
		1313
		1314	my $name = $pl->ob->name;
		1315
		1316	$pl->{deny_save} = 1;
		1317	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1318
		1319	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1320	$pl->deactivate;
		1321	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1322	$pl->ns->destroy if $pl->ns;
		1323
		1324	my $path = playerdir $pl;
		1325	my $temp = "$path~$cf::RUNTIME~deleting~";
		1326	aio_rename $path, $temp;
		1327	delete $cf::PLAYER{$pl->ob->name};
		1328	$pl->destroy;
		1329
		1330	my $prefix = qr<^~\Q$name\E/>;
		1331
		1332	# nuke player maps
		1333	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1334
		1335	IO::AIO::aio_rmtree $temp;
		1336	}
		1337
		1338	=item $pl->kick
		1339
		1340	Kicks a player out of the game. This destroys the connection.
		1341
		1342	=cut
		1343
		1344	sub kick {
		1345	my ($pl, $kicker) = @_;
		1346
		1347	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1348	$pl->killer ("kicked");
		1349	$pl->ns->destroy;
		1350	}
		1351
		1352	=item cf::player::list_logins
		1353
		1354	Returns am arrayref of all valid playernames in the system, can take a
		1355	while and may block, so not sync_job-capable, ever.
		1356
		1357	=cut
		1358
		1359	sub list_logins {
		1360	my $dirs = aio_readdir $PLAYERDIR
		1361	or return [];
		1362
		1363	my @logins;
		1364
		1365	for my $login (@$dirs) {
		1366	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1367	aio_read $fh, 0, 512, my $buf, 0 or next;
		1368	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1369
		1370	utf8::decode $login;
		1371	push @logins, $login;
		1372	}
		1373
		1374	\@logins
		1375	}
		1376
		1377	=item $player->maps
		1378
		1379	Returns an arrayref of map paths that are private for this
		1380	player. May block.
		1381
		1382	=cut
		1383
		1384	sub maps($) {
		1385	my ($pl) = @_;
		1386
		1387	$pl = ref $pl ? $pl->ob->name : $pl;
		1388
		1389	my $files = aio_readdir playerdir $pl
		1390	or return;
		1391
		1392	my @paths;
		1393
		1394	for (@$files) {
		1395	utf8::decode $_;
		1396	next if /\.(?:pl|pst)$/;
		1397	next unless /^$PATH_SEP/o;
		1398
		1399	push @paths, cf::map::normalise "~$pl/$_";
		1400	}
		1401
		1402	\@paths
		1403	}
		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
		1455	=item $player->ext_reply ($msgid, %msg)
		1456
		1457	Sends an ext reply to the player.
		1458
		1459	=cut
		1460
		1461	sub ext_reply($$%) {
		1462	my ($self, $id, %msg) = @_;
		1463
		1464	$msg{msgid} = $id;
		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1466	}
		1467
		1468	=item $player->ext_event ($type, %msg)
		1469
		1470	Sends an ext event to the client.
		1471
		1472	=cut
		1473
		1474	sub ext_event($$%) {
		1475	my ($self, $type, %msg) = @_;
		1476
		1477	$self->ns->ext_event ($type, %msg);
		1478	}
		1479
		1480	=head3 cf::region
		1481
		1482	=over 4
		1483
		1484	=cut
		1485
		1486	package cf::region;
		1487
		1488	=item cf::region::find_by_path $path
		1489
		1490	Tries to decuce the likely region for a map knowing only its path.
		1491
		1492	=cut
		1493
		1494	sub find_by_path($) {
962	my ($path) = @_;	1495	my ($path) = @_;
963		1496
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1497	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1498
970	warn "loading '$path' into '$pkg'\n";	1499	for my $region (list) {
971		1500	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1501	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1502	if $region->specificity > $specificity;
974		1503	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1504	}
1004		1505
1005	# remove commands	1506	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1507	}
1111		1508
1112	=back	1509	=back
1113
1114		1510
1115	=head3 cf::map	1511	=head3 cf::map
1116		1512
1117	=over 4	1513	=over 4
1118		1514
…		…
1121	package cf::map;	1517	package cf::map;
1122		1518
1123	use Fcntl;	1519	use Fcntl;
1124	use Coro::AIO;	1520	use Coro::AIO;
1125		1521
		1522	use overload
		1523	'""' => \&as_string,
		1524	fallback => 1;
		1525
1126	our $MAX_RESET = 3600;	1526	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1527	our $DEFAULT_RESET = 3000;
1128		1528
1129	sub generate_random_map {	1529	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1530	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1531	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1532	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1533	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1534	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1535	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1536	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1537	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1538	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1539	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1540	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1541	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1542	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1543	(cf::region::find $rmp->{region}), $rmp->{custom}
		1544	)
		1545	}
		1546
		1547	=item cf::map->register ($regex, $prio)
		1548
		1549	Register a handler for the map path matching the given regex at the
		1550	givne priority (higher is better, built-in handlers have priority 0, the
		1551	default).
		1552
		1553	=cut
		1554
		1555	sub register {
		1556	my (undef, $regex, $prio) = @_;
		1557	my $pkg = caller;
		1558
		1559	no strict;
		1560	push @{"$pkg\::ISA"}, __PACKAGE__;
		1561
		1562	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1563	}
		1564
		1565	# also paths starting with '/'
		1566	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1567
		1568	sub thawer_merge {
		1569	my ($self, $merge) = @_;
		1570
		1571	# we have to keep some variables in memory intact
		1572	local $self->{path};
		1573	local $self->{load_path};
		1574
		1575	$self->SUPER::thawer_merge ($merge);
		1576	}
		1577
		1578	sub normalise {
		1579	my ($path, $base) = @_;
		1580
		1581	$path = "$path"; # make sure its a string
		1582
		1583	$path =~ s/\.map$//;
		1584
		1585	# map plan:
		1586	#
		1587	# /! non-realised random map exit (special hack!)
		1588	# {... are special paths that are not being touched
		1589	# ?xxx/... are special absolute paths
		1590	# ?random/... random maps
		1591	# /... normal maps
		1592	# ~user/... per-player map of a specific user
		1593
		1594	$path =~ s/$PATH_SEP/\//go;
		1595
		1596	# treat it as relative path if it starts with
		1597	# something that looks reasonable
		1598	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1599	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1600
		1601	$base =~ s{[^/]+/?$}{};
		1602	$path = "$base/$path";
		1603	}
		1604
		1605	for ($path) {
		1606	redo if s{//}{/};
		1607	redo if s{/\.?/}{/};
		1608	redo if s{/[^/]+/\.\./}{/};
		1609	}
		1610
		1611	$path
		1612	}
		1613
		1614	sub new_from_path {
		1615	my (undef, $path, $base) = @_;
		1616
		1617	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1618
		1619	$path = normalise $path, $base;
		1620
		1621	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1622	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1623	my $self = bless cf::map::new, $pkg;
		1624	$self->{path} = $path; $self->path ($path);
		1625	$self->init; # pass $1 etc.
		1626	return $self;
		1627	}
		1628	}
		1629
		1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1631	()
		1632	}
		1633
		1634	sub init {
		1635	my ($self) = @_;
		1636
		1637	$self
		1638	}
		1639
		1640	sub as_string {
		1641	my ($self) = @_;
		1642
		1643	"$self->{path}"
		1644	}
		1645
		1646	# the displayed name, this is a one way mapping
		1647	sub visible_name {
		1648	&as_string
		1649	}
		1650
		1651	# the original (read-only) location
		1652	sub load_path {
		1653	my ($self) = @_;
		1654
		1655	"$MAPDIR/$self->{path}.map"
		1656	}
		1657
		1658	# the temporary/swap location
		1659	sub save_path {
		1660	my ($self) = @_;
		1661
		1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1663	"$TMPDIR/$path.map"
		1664	}
		1665
		1666	# the unique path, undef == no special unique path
		1667	sub uniq_path {
		1668	my ($self) = @_;
		1669
		1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1671	"$UNIQUEDIR/$path"
1146	}	1672	}
1147		1673
1148	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1149	# all maps in C++...	1675	# all maps in C++...
1150	sub change_all_map_light {	1676	sub change_all_map_light {
…		…
1152		1678
1153	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
1155	}	1681	}
1156		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
		1689	}
		1690
		1691	sub unlink_save {
		1692	my ($self) = @_;
		1693
		1694	utf8::encode (my $save = $self->save_path);
		1695	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1696	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1697	}
		1698
1157	sub try_load_header($) {	1699	sub load_header_from($) {
1158	my ($path) = @_;	1700	my ($self, $path) = @_;
1159		1701
1160	utf8::encode $path;	1702	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1703	#aio_open $path, O_RDONLY, 0
		1704	# or return;
		1705
		1706	$self->_load_header ($path)
1162	or return;	1707	or return;
1163		1708
1164	my $map = cf::map::new	1709	$self->{load_path} = $path;
		1710
		1711	1
		1712	}
		1713
		1714	sub load_header_orig {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->load_path)
		1718	}
		1719
		1720	sub load_header_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->load_header_from ($self->save_path)
		1724	}
		1725
		1726	sub prepare_temp {
		1727	my ($self) = @_;
		1728
		1729	$self->last_access ((delete $self->{last_access})
		1730	|| $cf::RUNTIME); #d#
		1731	# safety
		1732	$self->{instantiate_time} = $cf::RUNTIME
		1733	if $self->{instantiate_time} > $cf::RUNTIME;
		1734	}
		1735
		1736	sub prepare_orig {
		1737	my ($self) = @_;
		1738
		1739	$self->{load_original} = 1;
		1740	$self->{instantiate_time} = $cf::RUNTIME;
		1741	$self->last_access ($cf::RUNTIME);
		1742	$self->instantiate;
		1743	}
		1744
		1745	sub load_header {
		1746	my ($self) = @_;
		1747
		1748	if ($self->load_header_temp) {
		1749	$self->prepare_temp;
		1750	} else {
		1751	$self->load_header_orig
1165	or return;	1752	or return;
		1753	$self->prepare_orig;
		1754	}
1166		1755
1167	# for better error messages only, will be overwritten	1756	$self->{deny_reset} = 1
1168	$map->path ($path);	1757	if $self->no_reset;
1169		1758
1170	$map->load_header ($path)	1759	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1760	unless $self->default_region;
1172		1761
1173	$map->{load_path} = $path;	1762	1
1174
1175	$map
1176	}	1763	}
1177		1764
1178	sub find;	1765	sub find;
1179	sub find {	1766	sub find {
1180	my ($path, $origin) = @_;	1767	my ($path, $origin) = @_;
1181		1768
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1769	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1770
1187	cf::lock_wait "map_find:$key";	1771	cf::lock_wait "map_find:$path";
1188		1772
1189	$cf::MAP{$key} || do {	1773	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1774	my $guard = cf::lock_acquire "map_find:$path";
1191		1775	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1776	or return;
1211		1777
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1224		1779
1225	Coro::cede;	1780	$map->load_header
		1781	or return;
1226		1782
1227	if ($map->should_reset) {	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1784	# doing this can freeze the server in a sync job, obviously
		1785	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1786	$map->reset;
1229	undef $guard;	1787	undef $guard;
1230	$map = find $path	1788	return find $path;
1231	or return;
1232	}	1789	}
1233		1790
1234	$cf::MAP{$key} = $map	1791	$cf::MAP{$path} = $map
1235	}	1792	}
1236	}	1793	}
		1794
		1795	sub pre_load { }
		1796	sub post_load { }
1237		1797
1238	sub load {	1798	sub load {
1239	my ($self) = @_;	1799	my ($self) = @_;
1240		1800
		1801	local $self->{deny_reset} = 1; # loading can take a long time
		1802
1241	my $path = $self->{path};	1803	my $path = $self->{path};
		1804
		1805	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1806	my $guard = cf::lock_acquire "map_load:$path";
1243		1807
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1808	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1809
1246	$self->in_memory (cf::MAP_LOADING);	1810	$self->in_memory (cf::MAP_LOADING);
1247		1811
1248	$self->alloc;	1812	$self->alloc;
		1813
		1814	$self->pre_load;
		1815	Coro::cede;
		1816
1249	$self->load_objects ($self->{load_path}, 1)	1817	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1818	or return;
1251		1819
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1821	if delete $self->{load_original};
1254		1822
1255	if (my $uniq = $path->uniq_path) {	1823	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1824	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1825	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1826	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1827	$self->_load_objects ($uniq, 0);
1260	}	1828	}
1261	}	1829	}
1262		1830
1263	Coro::cede;	1831	Coro::cede;
1264
1265	# now do the right thing for maps	1832	# now do the right thing for maps
1266	$self->link_multipart_objects;	1833	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1834	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1835	unless $self->difficulty;
		1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1278	$self->activate;	1845	$self->activate;
1279	}	1846	}
1280		1847
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1848	$self->in_memory (cf::MAP_IN_MEMORY);
		1849	}
		1850
		1851	$self->post_load;
		1852	}
		1853
		1854	sub customise_for {
		1855	my ($self, $ob) = @_;
		1856
		1857	return find "~" . $ob->name . "/" . $self->{path}
		1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
		1862
		1863	$self
		1864	}
		1865
		1866	# find and load all maps in the 3x3 area around a map
		1867	sub load_diag {
		1868	my ($map) = @_;
		1869
		1870	my @diag; # diagonal neighbours
		1871
		1872	for (0 .. 3) {
		1873	my $neigh = $map->tile_path ($_)
		1874	or next;
		1875	$neigh = find $neigh, $map
		1876	or next;
		1877	$neigh->load;
		1878
		1879	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1880	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1881	}
		1882
		1883	for (@diag) {
		1884	my $neigh = find @$_
		1885	or next;
		1886	$neigh->load;
		1887	}
1284	}	1888	}
1285		1889
1286	sub find_sync {	1890	sub find_sync {
1287	my ($path, $origin) = @_;	1891	my ($path, $origin) = @_;
1288		1892
1289	cf::sync_job { cf::map::find $path, $origin }	1893	cf::sync_job { find $path, $origin }
1290	}	1894	}
1291		1895
1292	sub do_load_sync {	1896	sub do_load_sync {
1293	my ($map) = @_;	1897	my ($map) = @_;
1294		1898
1295	cf::sync_job { $map->load };	1899	cf::sync_job { $map->load };
1296	}	1900	}
1297		1901
		1902	our %MAP_PREFETCH;
		1903	our $MAP_PREFETCHER = undef;
		1904
		1905	sub find_async {
		1906	my ($path, $origin) = @_;
		1907
		1908	$path = normalise $path, $origin && $origin->{path};
		1909
		1910	if (my $map = $cf::MAP{$path}) {
		1911	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1912	}
		1913
		1914	undef $MAP_PREFETCH{$path};
		1915	$MAP_PREFETCHER ||= cf::async {
		1916	while (%MAP_PREFETCH) {
		1917	for my $path (keys %MAP_PREFETCH) {
		1918	if (my $map = find $path) {
		1919	$map->load;
		1920	}
		1921
		1922	delete $MAP_PREFETCH{$path};
		1923	}
		1924	}
		1925	undef $MAP_PREFETCHER;
		1926	};
		1927	$MAP_PREFETCHER->prio (6);
		1928
		1929	()
		1930	}
		1931
1298	sub save {	1932	sub save {
1299	my ($self) = @_;	1933	my ($self) = @_;
1300		1934
		1935	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1936
1301	$self->{last_save} = $cf::RUNTIME;	1937	$self->{last_save} = $cf::RUNTIME;
1302		1938
1303	return unless $self->dirty;	1939	return unless $self->dirty;
1304		1940
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1941	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1942	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1943
1308	$self->{load_path} = $save;	1944	$self->{load_path} = $save;
1309		1945
1310	return if $self->{deny_save};	1946	return if $self->{deny_save};
1311		1947
1312	local $self->{last_access} = $self->last_access;#d#	1948	local $self->{last_access} = $self->last_access;#d#
1313		1949
		1950	cf::async {
		1951	$_->contr->save for $self->players;
		1952	};
		1953
1314	if ($uniq) {	1954	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1955	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1956	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1957	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1958	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1959	}
1320	}	1960	}
1321		1961
1322	sub swap_out {	1962	sub swap_out {
1323	my ($self) = @_;	1963	my ($self) = @_;
1324		1964
1325	# save first because save cedes	1965	# save first because save cedes
1326	$self->save;	1966	$self->save;
		1967
		1968	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1969
1328	return if $self->players;	1970	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1971	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1972	return if $self->{deny_save};
1331		1973
…		…
1335		1977
1336	sub reset_at {	1978	sub reset_at {
1337	my ($self) = @_;	1979	my ($self) = @_;
1338		1980
1339	# TODO: safety, remove and allow resettable per-player maps	1981	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1982	return 1e99 if $self->{deny_reset};
1342		1983
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1986
…		…
1350	my ($self) = @_;	1991	my ($self) = @_;
1351		1992
1352	$self->reset_at <= $cf::RUNTIME	1993	$self->reset_at <= $cf::RUNTIME
1353	}	1994	}
1354		1995
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1996	sub reset {
1377	my ($self) = @_;	1997	my ($self) = @_;
1378		1998
		1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2000
1379	return if $self->players;	2001	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2002
1382	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
		2004
		2005	$self->in_memory (cf::MAP_SWAPPED);
		2006
		2007	# need to save uniques path
		2008	unless ($self->{deny_save}) {
		2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2010
		2011	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2012	if $uniq;
		2013	}
1383		2014
1384	delete $cf::MAP{$self->path};	2015	delete $cf::MAP{$self->path};
		2016
		2017	$self->clear;
1385		2018
1386	$_->clear_links_to ($self) for values %cf::MAP;	2019	$_->clear_links_to ($self) for values %cf::MAP;
1387		2020
1388	$self->unlink_save;	2021	$self->unlink_save;
1389	$self->destroy;	2022	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	2025	my $nuke_counter = "aaaa";
1393		2026
1394	sub nuke {	2027	sub nuke {
1395	my ($self) = @_;	2028	my ($self) = @_;
1396		2029
		2030	delete $cf::MAP{$self->path};
		2031
		2032	$self->unlink_save;
		2033
		2034	bless $self, "cf::map";
		2035	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2036	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2037	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2038	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2039
		2040	$cf::MAP{$self->path} = $self;
		2041
1400	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1401	}	2043	}
1402		2044
1403	sub customise_for {	2045	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2046
1406	if ($map->per_player) {	2047	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
1408	}	2053	[
1409		2054	map {
1410	$map	2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
1411	}	2061	}
1412		2062
1413	sub emergency_save {	2063	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2064
1416	warn "enter emergency map save\n";	2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
1417		2067
1418	cf::sync_job {	2068	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2069
1423	warn "end emergency map save\n";	2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
		2081	=item cf::map::unique_maps
		2082
		2083	Returns an arrayref of paths of all shared maps that have
		2084	instantiated unique items. May block.
		2085
		2086	=cut
		2087
		2088	sub unique_maps() {
		2089	[
		2090	map {
		2091	utf8::decode $_;
		2092	/\.map$/
		2093	? normalise $_
		2094	: ()
		2095	} @{ aio_readdir $UNIQUEDIR or [] }
		2096	]
1424	}	2097	}
1425		2098
1426	package cf;	2099	package cf;
1427		2100
1428	=back	2101	=back
1429		2102
		2103	=head3 cf::object
		2104
		2105	=cut
		2106
		2107	package cf::object;
		2108
		2109	=over 4
		2110
		2111	=item $ob->inv_recursive
		2112
		2113	Returns the inventory of the object _and_ their inventories, recursively.
		2114
		2115	=cut
		2116
		2117	sub inv_recursive_;
		2118	sub inv_recursive_ {
		2119	map { $_, inv_recursive_ $_->inv } @_
		2120	}
		2121
		2122	sub inv_recursive {
		2123	inv_recursive_ inv $_[0]
		2124	}
		2125
		2126	package cf;
		2127
		2128	=back
1430		2129
1431	=head3 cf::object::player	2130	=head3 cf::object::player
1432		2131
1433	=over 4	2132	=over 4
1434		2133
…		…
1448		2147
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2149
1451	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1453	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1456	}	2169	}
1457	}	2170	}
1458		2171
1459	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1460		2173
…		…
1474		2187
1475	=item $player_object->enter_link	2188	=item $player_object->enter_link
1476		2189
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2190	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2191
1479	The player should be reaosnably safe there for short amounts of time. You	2192	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2193	I<MUST> call C<leave_link> as soon as possible, though.
1481		2194
		2195	Will never block.
		2196
1482	=item $player_object->leave_link ($map, $x, $y)	2197	=item $player_object->leave_link ($map, $x, $y)
1483		2198
1484	Moves the player out of the specila link map onto the given map. If the	2199	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2200	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2201	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2202	fails, to the emergency map position.
1488		2203
1489	Might block.	2204	Might block.
1490		2205
1491	=cut	2206	=cut
		2207
		2208	sub link_map {
		2209	unless ($LINK_MAP) {
		2210	$LINK_MAP = cf::map::find "{link}"
		2211	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2212	$LINK_MAP->load;
		2213	}
		2214
		2215	$LINK_MAP
		2216	}
1492		2217
1493	sub cf::object::player::enter_link {	2218	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2219	my ($self) = @_;
1495		2220
1496	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1497		2222
1498	return if $self->map == $LINK_MAP;	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2224
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1502		2227
1503	$self->enter_map ($LINK_MAP, 20, 20);	2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2229	}
1505		2230
1506	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1508		2235
1509	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1510		2237
1511	unless ($map) {	2238	unless ($map) {
1512	# restore original map position	2239	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2253	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2254	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2255	if $x <=0 && $y <= 0;
1529		2256
1530	$map->load;	2257	$map->load;
		2258	$map->load_diag;
1531		2259
		2260	return unless $self->contr->active;
1532	$self->activate_recursive;	2261	$self->activate_recursive;
		2262
		2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1534	}	2265	}
1535		2266
1536	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2268
1540	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1544	};	2273	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2274
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)
1565
1566	=cut	2275	=cut
		2276
		2277	our $GOTOGEN;
1567		2278
1568	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2284
1571	$self->enter_link;	2285	$self->enter_link;
1572		2286
1573	(cf::async {	2287	(async {
1574	$path = new cf::path $path;	2288	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
1578		2293	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2294	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
1583		2297
		2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
		2304	}
		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1585	})->prio (1);	2312	})->prio (1);
1586	}	2313	}
1587		2314
1588	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1589		2316
…		…
1591		2318
1592	sub parse_random_map_params {	2319	sub parse_random_map_params {
1593	my ($spec) = @_;	2320	my ($spec) = @_;
1594		2321
1595	my $rmp = { # defaults	2322	my $rmp = { # defaults
1596	xsize => 10,	2323	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2324	ysize => (cf::rndm 15, 40),
		2325	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2326	#layout => string,
1598	};	2327	};
1599		2328
1600	for (split /\n/, $spec) {	2329	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2330	my ($k, $v) = split /\s+/, $_, 2;
1602		2331
…		…
1606	$rmp	2335	$rmp
1607	}	2336	}
1608		2337
1609	sub prepare_random_map {	2338	sub prepare_random_map {
1610	my ($exit) = @_;	2339	my ($exit) = @_;
		2340
		2341	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2342
1612	# all this does is basically replace the /! path by	2343	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2344	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2345	# that depends on the exit object
1615		2346
1616	my $rmp = parse_random_map_params $exit->msg;	2347	my $rmp = parse_random_map_params $exit->msg;
1617		2348
1618	if ($exit->map) {	2349	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2350	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2351	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2352	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2353	$rmp->{origin_y} = $exit->y;
1623	}	2354	}
1624		2355
1625	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1626		2357
1627	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
		2360	my $meta = "$RANDOMDIR/$md5.meta";
1629		2361
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
		2364	undef $fh;
		2365	aio_rename "$meta~", $meta;
1632		2366
1633	$exit->slaying ("?random/$md5");	2367	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2368	$exit->msg (undef);
1635	}	2369	}
1636	}	2370	}
…		…
1638	sub cf::object::player::enter_exit {	2372	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2373	my ($self, $exit) = @_;
1640		2374
1641	return unless $self->type == cf::PLAYER;	2375	return unless $self->type == cf::PLAYER;
1642		2376
		2377	if ($exit->slaying eq "/!") {
		2378	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2379	# the problem is that $exit might not survive long enough
		2380	# so it needs to be done right now, right here
		2381	cf::sync_job { prepare_random_map $exit };
		2382	}
		2383
		2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2385	my $hp = $exit->stats->hp;
		2386	my $sp = $exit->stats->sp;
		2387
1643	$self->enter_link;	2388	$self->enter_link;
1644		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
		2393
1645	(cf::async {	2394	(async {
1646	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2396	unless (eval {
1648	prepare_random_map $exit	2397	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2398
1654	1;	2399	1;
1655	}) {	2400	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2401	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2402	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2403	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2404	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2405
1661	warn "ERROR in enter_exit: $@";	2406	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2407	$self->leave_link;
1663	}	2408	}
1664	})->prio (1);	2409	})->prio (1);
…		…
1677		2422
1678	sub cf::client::send_drawinfo {	2423	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2424	my ($self, $text, $flags) = @_;
1680		2425
1681	utf8::encode $text;	2426	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2428	}
1684		2429
		2430	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $channel, $msg, $color, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	$color &= ~cf::NDI_UNIQUE; # just in case...
		2447
		2448	if (ref $channel) {
		2449	# send meta info to client, if not yet sent
		2450	unless (exists $self->{channel}{$channel->{id}}) {
		2451	$self->{channel}{$channel->{id}} = $channel;
		2452	$self->ext_event (channel_info => %$channel);
		2453	}
		2454
		2455	$channel = $channel->{id};
		2456	}
		2457
		2458	if ($self->can_msg) {
		2459	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2460	} else {
		2461	# replace some tags by gcfclient-compatible ones
		2462	for ($msg) {
		2463	1 while
		2464	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2465	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2466	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2467	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2468	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2469	}
		2470
		2471	if ($color >= 0) {
		2472	if (0 && $msg =~ /\[/) {
		2473	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2474	} else {
		2475	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2476	$self->send_packet ("drawinfo $color $msg")
		2477	}
		2478	}
		2479	}
		2480	}
		2481
		2482	=item $client->ext_event ($type, %msg)
		2483
		2484	Sends an ext event to the client.
		2485
		2486	=cut
		2487
		2488	sub cf::client::ext_event($$%) {
		2489	my ($self, $type, %msg) = @_;
		2490
		2491	return unless $self->extcmd;
		2492
		2493	$msg{msgtype} = "event_$type";
		2494	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2495	}
1685		2496
1686	=item $success = $client->query ($flags, "text", \&cb)	2497	=item $success = $client->query ($flags, "text", \&cb)
1687		2498
1688	Queues a query to the client, calling the given callback with	2499	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>,	2500	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>.	2501	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2502
1692	Queries can fail, so check the return code. Or don't, as queries will become	2503	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2504	become reliable at some point in the future.
1694		2505
1695	=cut	2506	=cut
1696		2507
1697	sub cf::client::query {	2508	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2509	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2517	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2518	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2519
1709	$self->send_packet ($self->{query_queue}[0][0])	2520	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2521	if @{ $self->{query_queue} } == 1;
		2522
		2523	1
1711	}	2524	}
1712		2525
1713	cf::client->attach (	2526	cf::client->attach (
		2527	on_connect => sub {
		2528	my ($ns) = @_;
		2529
		2530	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2531	},
1714	on_reply => sub {	2532	on_reply => sub {
1715	my ($ns, $msg) = @_;	2533	my ($ns, $msg) = @_;
1716		2534
1717	# this weird shuffling is so that direct followup queries	2535	# this weird shuffling is so that direct followup queries
1718	# get handled first	2536	# get handled first
1719	my $queue = delete $ns->{query_queue}	2537	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2538	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2539
1722	(shift @$queue)->[1]->($msg);	2540	(shift @$queue)->[1]->($msg);
		2541	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2542
1724	push @{ $ns->{query_queue} }, @$queue;	2543	push @{ $ns->{query_queue} }, @$queue;
1725		2544
1726	if (@{ $ns->{query_queue} } == @$queue) {	2545	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2546	if (@$queue) {
…		…
1729	} else {	2548	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2549	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2550	}
1732	}	2551	}
1733	},	2552	},
		2553	on_exticmd => sub {
		2554	my ($ns, $buf) = @_;
		2555
		2556	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2557
		2558	if (ref $msg) {
		2559	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2560	if (my %reply = $cb->($ns, $msg)) {
		2561	$reply{msgid} = $msg->{msgid};
		2562	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2563	}
		2564	}
		2565	} else {
		2566	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2567	}
		2568
		2569	cf::override;
		2570	},
1734	);	2571	);
1735		2572
1736	=item $client->coro (\&cb)	2573	=item $client->async (\&cb)
1737		2574
1738	Create a new coroutine, running the specified callback. The coroutine will	2575	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2576	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2577	or loss of connection).
1741		2578
1742	=cut	2579	=cut
1743		2580
1744	sub cf::client::coro {	2581	sub cf::client::async {
1745	my ($self, $cb) = @_;	2582	my ($self, $cb) = @_;
1746		2583
1747	my $coro = &cf::async ($cb);	2584	my $coro = &Coro::async ($cb);
1748		2585
1749	$coro->on_destroy (sub {	2586	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2587	delete $self->{_coro}{$coro+0};
1751	});	2588	});
1752		2589
…		…
1785		2622
1786	# here we export the classes and methods available to script code	2623	# here we export the classes and methods available to script code
1787		2624
1788	=pod	2625	=pod
1789		2626
1790	The following fucntions and emthods are available within a safe environment:	2627	The following functions and methods are available within a safe environment:
1791		2628
1792	cf::object contr pay_amount pay_player map	2629	cf::object
		2630	contr pay_amount pay_player map x y force_find force_add
		2631	insert remove
		2632
1793	cf::object::player player	2633	cf::object::player
1794	cf::player peaceful	2634	player
1795	cf::map trigger	2635
		2636	cf::player
		2637	peaceful
		2638
		2639	cf::map
		2640	trigger
1796		2641
1797	=cut	2642	=cut
1798		2643
1799	for (	2644	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2645	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2646	insert remove)],
1801	["cf::object::player" => qw(player)],	2647	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2648	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2649	["cf::map" => qw(trigger)],
1804	) {	2650	) {
1805	no strict 'refs';	2651	no strict 'refs';
…		…
1876	=back	2722	=back
1877		2723
1878	=cut	2724	=cut
1879		2725
1880	#############################################################################	2726	#############################################################################
		2727	# the server's init and main functions
1881		2728
1882	=head2 EXTENSION DATABASE SUPPORT	2729	sub load_facedata($) {
		2730	my ($path) = @_;
1883		2731
1884	Crossfire maintains a very simple database for extension use. It can	2732	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2733
1888	The parameter C<$family> should best start with the name of the extension	2734	my $facedata;
1889	using it, it should be unique.	2735	0 < aio_load $path, $facedata
		2736	or die "$path: $!";
1890		2737
1891	=over 4	2738	$facedata = Coro::Storable::thaw $facedata;
1892		2739
1893	=item $hashref = cf::db_get $family	2740	$facedata->{version} == 2
		2741	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2742
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	}	2743	{
		2744	my $faces = $facedata->{faceinfo};
1931		2745
1932	my $pid;	2746	while (my ($face, $info) = each %$faces) {
		2747	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2748	cf::face::set_visibility $idx, $info->{visibility};
		2749	cf::face::set_magicmap $idx, $info->{magicmap};
		2750	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2751	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933		2752
1934	sub db_save() {	2753	cf::cede_to_tick;
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
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]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2754	}
1980	);
1981	}
1982		2755
1983	#############################################################################	2756	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2757	next unless $info->{smooth};
		2758	my $idx = cf::face::find $face
		2759	or next;
		2760	if (my $smooth = cf::face::find $info->{smooth}) {
		2761	cf::face::set_smooth $idx, $smooth;
		2762	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2763	} else {
		2764	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2765	}
		2766
		2767	cf::cede_to_tick;
		2768	}
		2769	}
		2770
		2771	{
		2772	my $anims = $facedata->{animinfo};
		2773
		2774	while (my ($anim, $info) = each %$anims) {
		2775	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2776	cf::cede_to_tick;
		2777	}
		2778
		2779	cf::anim::invalidate_all; # d'oh
		2780	}
		2781
		2782	{
		2783	# TODO: for gcfclient pleasure, we should give resources
		2784	# that gcfclient doesn't grok a >10000 face index.
		2785	my $res = $facedata->{resource};
		2786	my $enc = JSON::XS->new->utf8->canonical;
		2787
		2788	while (my ($name, $info) = each %$res) {
		2789	my $meta = $enc->encode ({
		2790	name => $name,
		2791	type => $info->{type},
		2792	copyright => $info->{copyright}, #TODO#
		2793	});
		2794
		2795	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2796
		2797	if ($name =~ /\.jpg$/) {
		2798	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2799	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2800	} else {
		2801	my $data = pack "(w/a*)*", $meta, $info->{data};
		2802	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2803
		2804	cf::face::set_type $idx, 1;
		2805	cf::face::set_data $idx, 0, $data, $chk;
		2806	}
		2807
		2808	cf::cede_to_tick;
		2809	}
		2810	}
		2811
		2812	1
		2813	}
		2814
		2815	sub reload_regions {
		2816	load_resource_file "$MAPDIR/regions"
		2817	or die "unable to load regions file\n";
		2818
		2819	for (cf::region::list) {
		2820	$_->{match} = qr/$_->{match}/
		2821	if exists $_->{match};
		2822	}
		2823	}
		2824
		2825	sub reload_facedata {
		2826	load_facedata "$DATADIR/facedata"
		2827	or die "unable to load facedata\n";
		2828	}
		2829
		2830	sub reload_archetypes {
		2831	load_resource_file "$DATADIR/archetypes"
		2832	or die "unable to load archetypes\n";
		2833	#d# NEED to laod twice to resolve forward references
		2834	# this really needs to be done in an extra post-pass
		2835	# (which needs to be synchronous, so solve it differently)
		2836	load_resource_file "$DATADIR/archetypes"
		2837	or die "unable to load archetypes\n";
		2838	}
		2839
		2840	sub reload_treasures {
		2841	load_resource_file "$DATADIR/treasures"
		2842	or die "unable to load treasurelists\n";
		2843	}
		2844
		2845	sub reload_resources {
		2846	warn "reloading resource files...\n";
		2847
		2848	reload_regions;
		2849	reload_facedata;
		2850	#reload_archetypes;#d#
		2851	reload_archetypes;
		2852	reload_treasures;
		2853
		2854	warn "finished reloading resource files\n";
		2855	}
		2856
		2857	sub init {
		2858	reload_resources;
		2859	}
1985		2860
1986	sub cfg_load {	2861	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2862	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2863	or return;
1989		2864
1990	local $/;	2865	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2866	*CFG = YAML::Syck::Load <$fh>;
1992		2867
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2868	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2869
		2870	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2871	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2872
1995	if (exists $CFG{mlockall}) {	2873	if (exists $CFG{mlockall}) {
1996	eval {	2874	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2875	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2876	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2877	};
2000	warn $@ if $@;	2878	warn $@ if $@;
2001	}	2879	}
2002	}	2880	}
2003		2881
2004	sub main {	2882	sub main {
2005	# we must not ever block the main coroutine	2883	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2884	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2885	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2886	(async {
2009	Event::one_event;	2887	Event::one_event;
2010	})->();	2888	})->prio (Coro::PRIO_MAX);
2011	};	2889	};
2012		2890
2013	cfg_load;	2891	cfg_load;
2014	db_load;	2892	db_init;
2015	load_extensions;	2893	load_extensions;
		2894
		2895	$TICK_WATCHER->start;
2016	Event::loop;	2896	Event::loop;
2017	}	2897	}
2018		2898
2019	#############################################################################	2899	#############################################################################
2020	# initialisation	2900	# initialisation and cleanup
2021		2901
		2902	# install some emergency cleanup handlers
		2903	BEGIN {
		2904	for my $signal (qw(INT HUP TERM)) {
		2905	Event->signal (
		2906	reentrant => 0,
		2907	data => WF_AUTOCANCEL,
		2908	signal => $signal,
		2909	prio => 0,
		2910	cb => sub {
		2911	cf::cleanup "SIG$signal";
		2912	},
		2913	);
		2914	}
		2915	}
		2916
		2917	sub write_runtime {
		2918	my $runtime = "$LOCALDIR/runtime";
		2919
		2920	# first touch the runtime file to show we are still running:
		2921	# the fsync below can take a very very long time.
		2922
		2923	IO::AIO::aio_utime $runtime, undef, undef;
		2924
		2925	my $guard = cf::lock_acquire "write_runtime";
		2926
		2927	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2928	or return;
		2929
		2930	my $value = $cf::RUNTIME + 90 + 10;
		2931	# 10 is the runtime save interval, for a monotonic clock
		2932	# 60 allows for the watchdog to kill the server.
		2933
		2934	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2935	and return;
		2936
		2937	# always fsync - this file is important
		2938	aio_fsync $fh
		2939	and return;
		2940
		2941	# touch it again to show we are up-to-date
		2942	aio_utime $fh, undef, undef;
		2943
		2944	close $fh
		2945	or return;
		2946
		2947	aio_rename "$runtime~", $runtime
		2948	and return;
		2949
		2950	warn "runtime file written.\n";
		2951
		2952	1
		2953	}
		2954
		2955	sub emergency_save() {
		2956	my $freeze_guard = cf::freeze_mainloop;
		2957
		2958	warn "enter emergency perl save\n";
		2959
		2960	cf::sync_job {
		2961	# use a peculiar iteration method to avoid tripping on perl
		2962	# refcount bugs in for. also avoids problems with players
		2963	# and maps saved/destroyed asynchronously.
		2964	warn "begin emergency player save\n";
		2965	for my $login (keys %cf::PLAYER) {
		2966	my $pl = $cf::PLAYER{$login} or next;
		2967	$pl->valid or next;
		2968	$pl->save;
		2969	}
		2970	warn "end emergency player save\n";
		2971
		2972	warn "begin emergency map save\n";
		2973	for my $path (keys %cf::MAP) {
		2974	my $map = $cf::MAP{$path} or next;
		2975	$map->valid or next;
		2976	$map->save;
		2977	}
		2978	warn "end emergency map save\n";
		2979
		2980	warn "begin emergency database checkpoint\n";
		2981	BDB::db_env_txn_checkpoint $DB_ENV;
		2982	warn "end emergency database checkpoint\n";
		2983	};
		2984
		2985	warn "leave emergency perl save\n";
		2986	}
		2987
		2988	sub post_cleanup {
		2989	my ($make_core) = @_;
		2990
		2991	warn Carp::longmess "post_cleanup backtrace"
		2992	if $make_core;
		2993	}
		2994
2022	sub reload() {	2995	sub do_reload_perl() {
2023	# can/must only be called in main	2996	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2997	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2998	warn "can only reload from main coroutine";
2026	return;	2999	return;
2027	}	3000	}
2028		3001
2029	warn "reloading...";	3002	warn "reloading...";
2030		3003
2031	my $guard = freeze_mainloop;	3004	warn "entering sync_job";
		3005
		3006	cf::sync_job {
		3007	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3008	cf::emergency_save;
		3009	cf::write_runtime; # external watchdog should not bark
2033		3010
2034	eval {	3011	warn "syncing database to disk";
		3012	BDB::db_env_txn_checkpoint $DB_ENV;
		3013
2035	# if anything goes wrong in here, we should simply crash as we already saved	3014	# if anything goes wrong in here, we should simply crash as we already saved
2036		3015
2037	# cancel all watchers	3016	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3017	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3018	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3019	}
2041		3020
		3021	warn "flushing outstanding aio requests";
		3022	for (;;) {
		3023	BDB::flush;
		3024	IO::AIO::flush;
		3025	Coro::cede;
		3026	last unless IO::AIO::nreqs || BDB::nreqs;
		3027	warn "iterate...";
		3028	}
		3029
		3030	++$RELOAD;
		3031
2042	# cancel all extension coros	3032	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3033	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3034	%EXT_CORO = ();
2045		3035
2046	# unload all extensions	3036	warn "removing commands";
2047	for (@exts) {	3037	%COMMAND = ();
		3038
		3039	warn "removing ext/exti commands";
		3040	%EXTCMD = ();
		3041	%EXTICMD = ();
		3042
		3043	warn "unloading/nuking all extensions";
		3044	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3045	warn "... unloading $pkg";
2049	unload_extension $_;	3046
		3047	if (my $cb = $pkg->can ("unload")) {
		3048	eval {
		3049	$cb->($pkg);
		3050	1
		3051	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3052	}
2051		3053
		3054	warn "... nuking $pkg";
		3055	Symbol::delete_package $pkg;
		3056	}
		3057
2052	# unload all modules loaded from $LIBDIR	3058	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3059	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3061
2056	warn "removing <$k>";	3062	warn "... unloading $k";
2057	delete $INC{$k};	3063	delete $INC{$k};
2058		3064
2059	$k =~ s/\.pm$//;	3065	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3066	$k =~ s/\//::/g;
2061		3067
…		…
2064	}	3070	}
2065		3071
2066	Symbol::delete_package $k;	3072	Symbol::delete_package $k;
2067	}	3073	}
2068		3074
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3075	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3076	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3077	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3078
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3079	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3080	delete $INC{"cf.pm"};
		3081	delete $INC{"cf/pod.pm"};
2082		3082
2083	# don't, removes xs symbols, too,	3083	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3084	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3085	#Symbol::delete_package __PACKAGE__;
2086		3086
2087	# reload cf.pm	3087	warn "unload completed, starting to reload now";
		3088
2088	warn "reloading cf.pm";	3089	warn "reloading cf.pm";
2089	require cf;	3090	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3091	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3092
2092	# load config and database again	3093	warn "loading config and database again";
2093	cf::cfg_load;	3094	cf::cfg_load;
2094	cf::db_load;
2095		3095
2096	# load extensions
2097	warn "load extensions";	3096	warn "loading extensions";
2098	cf::load_extensions;	3097	cf::load_extensions;
2099		3098
2100	# reattach attachments to objects	3099	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3100	_global_reattach; # objects, sockets
2102	_global_reattach;	3101	warn "reattaching attachments to maps";
2103	};	3102	reattach $_ for values %MAP;
		3103	warn "reattaching attachments to players";
		3104	reattach $_ for values %PLAYER;
2104		3105
2105	if ($@) {	3106	warn "leaving sync_job";
		3107
		3108	1
		3109	} or do {
2106	warn $@;	3110	warn $@;
2107	warn "error while reloading, exiting.";	3111	warn "error while reloading, exiting.";
2108	exit 1;	3112	exit 1;
2109	}	3113	};
2110		3114
2111	warn "reloaded successfully";	3115	warn "reloaded";
2112	};	3116	};
2113		3117
2114	#############################################################################	3118	our $RELOAD_WATCHER; # used only during reload
2115		3119
2116	unless ($LINK_MAP) {	3120	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3121	# doing reload synchronously and two reloads happen back-to-back,
		3122	# coro crashes during coro_state_free->destroy here.
2118		3123
2119	$LINK_MAP->width (41);	3124	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3125	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,	3126	after => 0,
		3127	data => WF_AUTOCANCEL,
2129	cb => sub {	3128	cb => sub {
2130	$_[0]->w->cancel;	3129	do_reload_perl;
2131		3130	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	});	3131	},
2150		3132	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3133	}
2156
2157	register "<global>", __PACKAGE__;
2158		3134
2159	register_command "reload" => sub {	3135	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3136	my ($who, $arg) = @_;
2161		3137
2162	if ($who->flag (FLAG_WIZ)) {	3138	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3139	$who->message ("reloading server.");
		3140	async { reload_perl };
2166	}	3141	}
2167	};	3142	};
2168		3143
2169	unshift @INC, $LIBDIR;	3144	unshift @INC, $LIBDIR;
2170		3145
		3146	my $bug_warning = 0;
		3147
		3148	our @WAIT_FOR_TICK;
		3149	our @WAIT_FOR_TICK_BEGIN;
		3150
		3151	sub wait_for_tick {
		3152	return unless $TICK_WATCHER->is_active;
		3153	return if $Coro::current == $Coro::main;
		3154
		3155	my $signal = new Coro::Signal;
		3156	push @WAIT_FOR_TICK, $signal;
		3157	$signal->wait;
		3158	}
		3159
		3160	sub wait_for_tick_begin {
		3161	return unless $TICK_WATCHER->is_active;
		3162	return if $Coro::current == $Coro::main;
		3163
		3164	my $signal = new Coro::Signal;
		3165	push @WAIT_FOR_TICK_BEGIN, $signal;
		3166	$signal->wait;
		3167	}
		3168
		3169	my $min = 1e6;#d#
		3170	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3171	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3172	reentrant => 0,
		3173	parked => 1,
2173	prio => 0,	3174	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3175	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3176	data => WF_AUTOCANCEL,
2176	cb => sub {	3177	cb => sub {
		3178	if ($Coro::current != $Coro::main) {
		3179	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3180	unless ++$bug_warning > 10;
		3181	return;
		3182	}
		3183
		3184	$NOW = $tick_start = Event::time;
		3185
2177	cf::server_tick; # one server iteration	3186	cf::server_tick; # one server iteration
		3187
		3188	0 && sync_job {#d#
		3189	for(1..10) {
		3190	my $t = Event::time;
		3191	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3192	or die;
		3193
		3194	$map->width (50);
		3195	$map->height (50);
		3196	$map->alloc;
		3197	$map->_load_objects ("/tmp/x.map", 1);
		3198	my $t = Event::time - $t;
		3199
		3200	#next unless $t < 0.0013;#d#
		3201	if ($t < $min) {
		3202	$min = $t;
		3203	}
		3204	$avg = $avg * 0.99 + $t * 0.01;
		3205	}
		3206	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3207	exit 0;
		3208	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3209	};
		3210
2178	$RUNTIME += $TICK;	3211	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3212	$NEXT_TICK += $TICK;
2180		3213
		3214	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3215	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3216	Coro::async_pool {
		3217	write_runtime
		3218	or warn "ERROR: unable to write runtime file: $!";
		3219	};
		3220	}
		3221
		3222	# my $AFTER = Event::time;
		3223	# warn $AFTER - $NOW;#d#
		3224
		3225	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3226	$sig->send;
		3227	}
		3228	while (my $sig = shift @WAIT_FOR_TICK) {
		3229	$sig->send;
		3230	}
		3231
		3232	$NOW = Event::time;
		3233
2181	# if we are delayed by four ticks or more, skip them all	3234	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3235	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2183		3236
2184	$TICK_WATCHER->at ($NEXT_TICK);	3237	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	3238	$TICK_WATCHER->start;
		3239
		3240	$LOAD = ($NOW - $tick_start) / $TICK;
		3241	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3242
		3243	_post_tick;
		3244
		3245
2186	},	3246	},
2187	);	3247	);
2188		3248
		3249	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	3250	BDB::max_poll_time $TICK * 0.1;
2190		3251	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	3252	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	3253	fd => BDB::poll_fileno,
2193	poll => 'r',	3254	poll => 'r',
2194	prio => 5,	3255	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	3256	data => WF_AUTOCANCEL,
2201	after => 0,	3257	cb => \&BDB::poll_cb,
2202	interval => 10,	3258	);
2203	cb => sub {	3259	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	3260
2205	write_runtime	3261	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	3262	my $status;
		3263	my $current = $Coro::current;
		3264	(
		3265	sub {
		3266	$status = $!;
		3267	$current->ready; undef $current;
		3268	},
		3269	sub {
		3270	Coro::schedule while defined $current;
		3271	$! = $status;
		3272	},
		3273	)
		3274	};
		3275
		3276	unless ($DB_ENV) {
		3277	$DB_ENV = BDB::db_env_create;
		3278
		3279	cf::sync_job {
		3280	eval {
		3281	BDB::db_env_open
		3282	$DB_ENV,
		3283	$BDBDIR,
		3284	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3285	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3286	0666;
		3287
		3288	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3289
		3290	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3291	$DB_ENV->set_lk_detect;
		3292	};
		3293
		3294	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	3295	};
2208	},	3296	}
2209	);	3297	}
		3298
		3299	{
		3300	IO::AIO::min_parallel 8;
		3301
		3302	undef $Coro::AIO::WATCHER;
		3303	IO::AIO::max_poll_time $TICK * 0.1;
		3304	$AIO_POLL_WATCHER = Event->io (
		3305	reentrant => 0,
		3306	data => WF_AUTOCANCEL,
		3307	fd => IO::AIO::poll_fileno,
		3308	poll => 'r',
		3309	prio => 6,
		3310	cb => \&IO::AIO::poll_cb,
		3311	);
		3312	}
		3313
		3314	my $_log_backtrace;
		3315
		3316	sub _log_backtrace {
		3317	my ($msg, @addr) = @_;
		3318
		3319	$msg =~ s/\n//;
		3320
		3321	# limit the # of concurrent backtraces
		3322	if ($_log_backtrace < 2) {
		3323	++$_log_backtrace;
		3324	async {
		3325	my @bt = fork_call {
		3326	@addr = map { sprintf "%x", $_ } @addr;
		3327	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3328	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3329	or die "addr2line: $!";
		3330
		3331	my @funcs;
		3332	my @res = <$fh>;
		3333	chomp for @res;
		3334	while (@res) {
		3335	my ($func, $line) = splice @res, 0, 2, ();
		3336	push @funcs, "[$func] $line";
		3337	}
		3338
		3339	@funcs
		3340	};
		3341
		3342	LOG llevInfo, "[ABT] $msg\n";
		3343	LOG llevInfo, "[ABT] $_\n" for @bt;
		3344	--$_log_backtrace;
		3345	};
		3346	} else {
		3347	LOG llevInfo, "[ABT] $msg\n";
		3348	LOG llevInfo, "[ABT] [suppressed]\n";
		3349	}
		3350	}
		3351
		3352	# load additional modules
		3353	use cf::pod;
2210		3354
2211	END { cf::emergency_save }	3355	END { cf::emergency_save }
2212		3356
2213	1	3357	1
2214		3358

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