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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.179 by root, Thu Jan 18 20:39:00 2007 UTC vs.
Revision 1.305 by root, Thu Jul 12 08:40:14 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 3.4 ();	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 ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # 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
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	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(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	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;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	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
101	every server tick.	132	every server tick.
102		133
103	=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
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	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.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.
127		171
128	=back	172	=back
129		173
130	=cut	174	=cut
131		175
132	BEGIN {	176	BEGIN {
133	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	178	my $msg = join "", @_;
135	utf8::encode $msg;
136		179
137	$msg .= "\n"	180	$msg .= "\n"
138	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
139		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
140	LOG llevError, $msg;	186	LOG llevError, $msg;
141	};	187	};
142	}	188	}
143		189
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		197
151	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	199	# within the Safe compartment.
153	for my $pkg (qw(	200	for my $pkg (qw(
154	cf::global cf::attachable	201	cf::global cf::attachable
…		…
162	}	209	}
163		210
164	$Event::DIED = sub {	211	$Event::DIED = sub {
165	warn "error in event callback: @_";	212	warn "error in event callback: @_";
166	};	213	};
		214
		215	#############################################################################
167		216
168	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
169		218
170	=over 4	219	=over 4
171		220
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	240	$d
192	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
193	}	242	}
194		243
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
198		245
199	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
200		247
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
209		249
210	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
211		251
212	=cut	252	=cut
213		253
214	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
216	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
218		258
219	=item cf::lock_wait $string	259	=item cf::lock_wait $string
220		260
221	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
222		262
…		…
228	returned.	268	returned.
229		269
230	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
232		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
233	=cut	277	=cut
234		278
235	our %LOCK;	279	our %LOCK;
236		280
237	sub lock_wait($) {	281	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
258	}	302	}
259	}	303	}
260		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
261	sub freeze_mainloop {	311	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
263		313
264	my $guard = Coro::guard {	314	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	316	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
270	$guard	318	$guard
271	}	319	}
272		320
273	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
280		328
281	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
282		330
283	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
284		332
285	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
288		337
289	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
292	fast or be very important.	341	fast or be very important.
…		…
295		344
296	sub sync_job(&) {	345	sub sync_job(&) {
297	my ($job) = @_;	346	my ($job) = @_;
298		347
299	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
300	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
302		353
303	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
315		366
316	while ($busy) {	367	while ($busy) {
317	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
318	}	369	}
319		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
320	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
321	} else {	379	} else {
322	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
323		381
324	$job->()	382	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
344		402
345	$coro	403	$coro
346	}	404	}
347		405
348	sub write_runtime {	406	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		407
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
352	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
353		412
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		414
358	aio_fsync $fh	415	sub _store_scalar {
359	and return;	416	open my $fh, ">", \my $buf
360		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
361	close $fh	419	close $fh;
362	or return;
363		420
364	aio_rename "$runtime~", $runtime	421	$buf
365	and return;	422	}
366		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
367	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	593	}
369		594
370	=back	595	=back
371		596
372	=cut	597	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
381		606
382	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	609	Crossfire TRT).
385		610
386	=over 4	611	=over 4
387		612
388	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
389		614
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
553		778
554	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		783
559	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	785	my $pkg = shift @arg;
561		786
562	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
592	}	817	}
593		818
594	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
595	} else {	820	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	822	}
598		823
599	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
600	}	825	}
601		826
…		…
603	if (ref $_[0]) {	828	if (ref $_[0]) {
604	_object_attach @_;	829	_object_attach @_;
605	} else {	830	} else {
606	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
607	}	832	}
		833	_recalc_want;
608	};	834	};
609		835
610	# all those should be optimised	836	# all those should be optimised
611	sub cf::attachable::detach {	837	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
616	reattach ($obj);	842	reattach ($obj);
617	} else {	843	} else {
618	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
619	}	845	}
		846	_recalc_want;
620	};	847	};
621		848
622	sub cf::attachable::attached {	849	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
624		851
…		…
747	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
748		975
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	980	close $fh;
754		981
755	if (@$objs) {	982	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	983	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	988	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
763	}	990	}
764	} else {	991	} else {
765	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
797	or return;	1024	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1026	}
800		1027
801	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1030	return ($data, $av);
804	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
805		1038
806	#############################################################################	1039	#############################################################################
807	# command handling &c	1040	# command handling &c
808		1041
809	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1056	}
824		1057
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1059
827	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
828		1065
829	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
830	called.	1067	called.
831		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
832	=cut	1080	=cut
833		1081
834	sub register_extcmd {	1082	sub register_extcmd {
835	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
836		1084
837	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
838	}	1092	}
839		1093
840	cf::player->attach (	1094	cf::player->attach (
841	on_command => sub {	1095	on_command => sub {
842	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1105	cf::override;
852	},	1106	},
853	on_extcmd => sub {	1107	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
855		1109
856	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1111
858	if (ref $msg) {	1112	if (ref $msg) {
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
860	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
861	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
867		1121
868	cf::override;	1122	cf::override;
869	},	1123	},
870	);	1124	);
871		1125
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
907	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1131	next unless -r $path;
909	eval {	1132
910	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
911	1	1190	}
912	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
913	}	1196	};
914	}	1197	}
915		1198
916	#############################################################################	1199	#############################################################################
917		1200
		1201	=back
		1202
918	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
919		1204
920	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
921		1206
922	=cut	1207	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
935		1220
936	=cut	1221	=cut
937		1222
938	sub playerdir($) {	1223	sub playerdir($) {
939	cf::localdir	1224	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1226	}
945		1227
946	sub path($) {	1228	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1230
949	(playerdir $login) . "/$login.pl"	1231	(playerdir $login) . "/playerdata"
950	}	1232	}
951		1233
952	sub find_active($) {	1234	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1235	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1236	and $cf::PLAYER{$_[0]}->active
…		…
957		1239
958	sub exists($) {	1240	sub exists($) {
959	my ($login) = @_;	1241	my ($login) = @_;
960		1242
961	$cf::PLAYER{$login}	1243	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1244	or cf::sync_job { !aio_stat path $login }
963	}	1245	}
964		1246
965	sub find($) {	1247	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1248	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1249	my $login = $_[0];
968		1250
969	my $guard = cf::lock_acquire "user_find:$login";	1251	my $guard = cf::lock_acquire "user_find:$login";
970		1252
971	$cf::PLAYER{$_[0]} || do {	1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
972	my $pl = load_pl path $login	1261	my $pl = load_pl path $login
973	or return;	1262	or return;
974	$cf::PLAYER{$login} = $pl	1263	$cf::PLAYER{$login} = $pl
975	}	1264	}
976	}	1265	}
…		…
1013		1302
1014	=cut	1303	=cut
1015		1304
1016	sub quit_character {	1305	sub quit_character {
1017	my ($pl) = @_;	1306	my ($pl) = @_;
		1307
		1308	my $name = $pl->ob->name;
1018		1309
1019	$pl->{deny_save} = 1;	1310	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1311	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1312
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1313	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1318	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1319	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1320	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1321	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1322	$pl->destroy;
		1323
		1324	my $prefix = qr<^~\Q$name\E/>;
		1325
		1326	# nuke player maps
		1327	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1328
1032	IO::AIO::aio_rmtree $temp;	1329	IO::AIO::aio_rmtree $temp;
		1330	}
		1331
		1332	=item $pl->kick
		1333
		1334	Kicks a player out of the game. This destroys the connection.
		1335
		1336	=cut
		1337
		1338	sub kick {
		1339	my ($pl, $kicker) = @_;
		1340
		1341	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1342	$pl->killer ("kicked");
		1343	$pl->ns->destroy;
1033	}	1344	}
1034		1345
1035	=item cf::player::list_logins	1346	=item cf::player::list_logins
1036		1347
1037	Returns am arrayref of all valid playernames in the system, can take a	1348	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1039		1350
1040	=cut	1351	=cut
1041		1352
1042	sub list_logins {	1353	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1355	or return [];
1045		1356
1046	my @logins;	1357	my @logins;
1047		1358
1048	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1065	=cut	1376	=cut
1066		1377
1067	sub maps($) {	1378	sub maps($) {
1068	my ($pl) = @_;	1379	my ($pl) = @_;
1069		1380
		1381	$pl = ref $pl ? $pl->ob->name : $pl;
		1382
1070	my $files = aio_readdir playerdir $pl	1383	my $files = aio_readdir playerdir $pl
1071	or return;	1384	or return;
1072		1385
1073	my @paths;	1386	my @paths;
1074		1387
1075	for (@$files) {	1388	for (@$files) {
1076	utf8::decode $_;	1389	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1390	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1391	next unless /^$PATH_SEP/o;
1079		1392
1080	s/\.map$//;	1393	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1394	}
1083		1395
1084	\@paths	1396	\@paths
1085	}	1397	}
1086		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1088		1450
1089	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1090		1452
1091	=cut	1453	=cut
1092		1454
1093	sub ext_reply($$$%) {	1455	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1095		1457
1096	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1097		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1460	}
1100		1461
1101	package cf;	1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
		1489	my ($path) = @_;
		1490
		1491	my ($match, $specificity);
		1492
		1493	for my $region (list) {
		1494	if ($region->{match} && $path =~ $region->{match}) {
		1495	($match, $specificity) = ($region, $region->specificity)
		1496	if $region->specificity > $specificity;
		1497	}
		1498	}
		1499
		1500	$match
		1501	}
1102		1502
1103	=back	1503	=back
1104
1105		1504
1106	=head3 cf::map	1505	=head3 cf::map
1107		1506
1108	=over 4	1507	=over 4
1109		1508
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1538	)
1140	}	1539	}
1141		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
1142	sub register {	1549	sub register {
1143	my (undef, $regex) = @_;	1550	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1551	my $pkg = caller;
1145		1552
1146	no strict;	1553	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1554	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1555
1149	$EXT_MAP{$pkg} = qr<$regex>;	1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1557	}
1151		1558
1152	# also paths starting with '/'	1559	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1561
1155	sub thawer_merge {	1562	sub thawer_merge {
1156	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1157		1564
1158	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1159	local $self->{path};	1566	local $self->{path};
1160	local $self->{load_path};	1567	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1568
1164	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1165	}	1570	}
1166		1571
1167	sub normalise {	1572	sub normalise {
1168	my ($path, $base) = @_;	1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
1169		1578
1170	# map plan:	1579	# map plan:
1171	#	1580	#
1172	# /! non-realised random map exit (special hack!)	1581	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1582	# {... are special paths that are not being touched
…		…
1201		1610
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1612
1204	$path = normalise $path, $base;	1613	$path = normalise $path, $base;
1205		1614
1206	for my $pkg (keys %EXT_MAP) {	1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1617	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1618	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1619	$self->init; # pass $1 etc.
1211	return $self;	1620	return $self;
1212	}	1621	}
1213	}	1622	}
1214		1623
1215	Carp::carp "unable to resolve path '$path'.";	1624	Carp::carp "unable to resolve path '$path' (base '$base').";
1216	()	1625	()
1217	}	1626	}
1218		1627
1219	sub init {	1628	sub init {
1220	my ($self) = @_;	1629	my ($self) = @_;
…		…
1235		1644
1236	# the original (read-only) location	1645	# the original (read-only) location
1237	sub load_path {	1646	sub load_path {
1238	my ($self) = @_;	1647	my ($self) = @_;
1239		1648
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1241	}	1650	}
1242		1651
1243	# the temporary/swap location	1652	# the temporary/swap location
1244	sub save_path {	1653	sub save_path {
1245	my ($self) = @_;	1654	my ($self) = @_;
1246		1655
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1249	}	1658	}
1250		1659
1251	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1252	sub uniq_path {	1661	sub uniq_path {
1253	my ($self) = @_;	1662	my ($self) = @_;
1254		1663
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1257	}	1666	}
1258		1667
1259	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1260	# all maps in C++...	1669	# all maps in C++...
1261	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1263		1672
1264	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1266	}	1675	}
1267		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1268	sub unlink_save {	1685	sub unlink_save {
1269	my ($self) = @_;	1686	my ($self) = @_;
1270		1687
1271	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1692
1276	sub load_header_from($) {	1693	sub load_header_from($) {
1277	my ($self, $path) = @_;	1694	my ($self, $path) = @_;
1278		1695
1279	utf8::encode $path;	1696	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
1281	or return;	1698	# or return;
1282		1699
1283	$self->_load_header ($path)	1700	$self->_load_header ($path)
1284	or return;	1701	or return;
1285		1702
1286	$self->{load_path} = $path;	1703	$self->{load_path} = $path;
1287		1704
1288	1	1705	1
1289	}	1706	}
1290		1707
1291	sub load_orig {	1708	sub load_header_orig {
1292	my ($self) = @_;	1709	my ($self) = @_;
1293		1710
1294	$self->load_header_from ($self->load_path)	1711	$self->load_header_from ($self->load_path)
1295	}	1712	}
1296		1713
1297	sub load_temp {	1714	sub load_header_temp {
1298	my ($self) = @_;	1715	my ($self) = @_;
1299		1716
1300	$self->load_header_from ($self->save_path)	1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
1301	}	1737	}
1302		1738
1303	sub load_header {	1739	sub load_header {
1304	my ($self) = @_;	1740	my ($self) = @_;
1305		1741
1306	if ($self->load_temp) {	1742	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1743	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1744	} else {
1313	$self->load_orig	1745	$self->load_header_orig
1314	or return;	1746	or return;
1315		1747	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1748	}
		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
		1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
1321		1755
1322	1	1756	1
1323	}	1757	}
1324		1758
1325	sub find;	1759	sub find;
…		…
1338	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1339		1773
1340	$map->load_header	1774	$map->load_header
1341	or return;	1775	or return;
1342		1776
1343	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1345	$map->reset;	1780	$map->reset;
1346	undef $guard;	1781	undef $guard;
1347	$map = find $path	1782	return find $path;
1348	or return;
1349	}	1783	}
1350		1784
1351	$cf::MAP{$path} = $map	1785	$cf::MAP{$path} = $map
1352	}	1786	}
1353	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1354		1791
1355	sub load {	1792	sub load {
1356	my ($self) = @_;	1793	my ($self) = @_;
1357		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1358	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1359	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1360		1801
1361	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1362		1803
1363	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1364		1805
1365	$self->alloc;	1806	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)
1367	or return;
1368		1807
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1808	$self->pre_load;
1370	if delete $self->{load_original};
1371
1372	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {
1375	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);
1377	}
1378	}
1379
1380	Coro::cede;
1381
1382	# now do the right thing for maps
1383	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;	1809	Coro::cede;
1390	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1391	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	1829	unless $self->difficulty;
1393	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1394	$self->activate;	1839	$self->activate;
1395	}	1840	}
1396		1841
1397	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
1398	}	1846	}
1399		1847
1400	sub customise_for {	1848	sub customise_for {
1401	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1402		1850
1403	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1405		1856
1406	$self	1857	$self
1407	}	1858	}
1408		1859
1409	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1441		1892
1442	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1443	}	1894	}
1444		1895
1445	our %MAP_PREFETCH;	1896	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	1897	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		1898
1459	sub find_async {	1899	sub find_async {
1460	my ($path, $origin) = @_;	1900	my ($path, $origin) = @_;
1461		1901
1462	$path = normalise $path, $origin && $origin->{path};	1902	$path = normalise $path, $origin && $origin->{path};
1463		1903
1464	if (my $map = $cf::MAP{$path}) {	1904	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466	}	1906	}
1467		1907
1468	$MAP_PREFETCH{$path} = 0;	1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
1469	$MAP_PREFETCHER->ready;	1921	$MAP_PREFETCHER->prio (6);
1470		1922
1471	()	1923	()
1472	}	1924	}
1473		1925
1474	sub save {	1926	sub save {
…		…
1519		1971
1520	sub reset_at {	1972	sub reset_at {
1521	my ($self) = @_;	1973	my ($self) = @_;
1522		1974
1523	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1526		1977
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		1980
…		…
1540	my ($self) = @_;	1991	my ($self) = @_;
1541		1992
1542	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		1994
1544	return if $self->players;	1995	return if $self->players;
1545	return if $self->isa ("ext::map_per_player");#d#
1546		1996
1547	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1548		2008
1549	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
1550		2010
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	$self->clear;	2011	$self->clear;
1553		2012
1554	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1555		2014
1556	$self->unlink_save;	2015	$self->unlink_save;
…		…
1575	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1576		2035
1577	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1578	}	2037	}
1579		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1580	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1581		2076
1582	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1583	instantiated unique items. May block.	2078	instantiated unique items. May block.
1584		2079
1585	=cut	2080	=cut
1586		2081
1587	sub unique_maps() {	2082	sub unique_maps() {
1588	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1589	or return;	2084	map {
1590
1591	my @paths;
1592
1593	for (@$files) {
1594	utf8::decode $_;	2085	utf8::decode $_;
1595	next if /\.pst$/;
1596	next unless /^$PATH_SEP/o;
1597
1598	s/\.map$//;	2086	/\.map$/
1599	push @paths, $_;	2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
1600	}	2090	]
1601
1602	\@paths
1603	}	2091	}
1604		2092
1605	package cf;	2093	package cf;
1606		2094
1607	=back	2095	=back
…		…
1653		2141
1654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1655		2143
1656	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1658	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1659	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1660	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1661	}	2163	}
1662	}	2164	}
1663		2165
1664	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1665		2167
…		…
1698	=cut	2200	=cut
1699		2201
1700	sub link_map {	2202	sub link_map {
1701	unless ($LINK_MAP) {	2203	unless ($LINK_MAP) {
1702	$LINK_MAP = cf::map::find "{link}"	2204	$LINK_MAP = cf::map::find "{link}"
1703	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704	$LINK_MAP->load;	2206	$LINK_MAP->load;
1705	}	2207	}
1706		2208
1707	$LINK_MAP	2209	$LINK_MAP
1708	}	2210	}
…		…
1713	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1714		2216
1715	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1716		2218
1717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1719		2221
1720	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1721	}	2223	}
1722		2224
1723	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1724	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1725		2229
1726	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1727		2231
1728	unless ($map) {	2232	unless ($map) {
1729	# restore original map position	2233	# restore original map position
…		…
1747	$map->load;	2251	$map->load;
1748	$map->load_diag;	2252	$map->load_diag;
1749		2253
1750	return unless $self->contr->active;	2254	return unless $self->contr->active;
1751	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1752	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1753	}	2259	}
1754		2260
1755	cf::player->attach (
1756	on_logout => sub {
1757	my ($pl) = @_;
1758
1759	# abort map switching before logout
1760	if ($pl->ob->{_link_pos}) {
1761	cf::sync_job {
1762	$pl->ob->leave_link
1763	};
1764	}
1765	},
1766	on_login => sub {
1767	my ($pl) = @_;
1768
1769	# try to abort aborted map switching on player login :)
1770	# should happen only on crashes
1771	if ($pl->ob->{_link_pos}) {
1772	$pl->ob->enter_link;
1773	(async {
1774	# we need this sleep as the login has a concurrent enter_exit running
1775	# and this sleep increases chances of the player not ending up in scorn
1776	$pl->ob->reply (undef,
1777	"There was an internal problem at your last logout, "
1778	. "the server will try to bring you to your intended destination in a second.",
1779	cf::NDI_RED);
1780	Coro::Timer::sleep 1;
1781	$pl->ob->leave_link;
1782	})->prio (2);
1783	}
1784	},
1785	);
1786
1787	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1788		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1789	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1790		2271
1791	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1792	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1793		2277
1794	$self->enter_link;	2278	$self->enter_link;
1795		2279
1796	(async {	2280	(async {
		2281	my $map = eval {
1797	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1798	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1799		2286	$map = $check->($map) if $check && $map;
1800	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1801	# if $map;
1802
1803	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1804		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1805	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1806	})->prio (1);	2303	})->prio (1);
1807	}	2304	}
1808		2305
1809	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1810		2307
…		…
1812		2309
1813	sub parse_random_map_params {	2310	sub parse_random_map_params {
1814	my ($spec) = @_;	2311	my ($spec) = @_;
1815		2312
1816	my $rmp = { # defaults	2313	my $rmp = { # defaults
1817	xsize => -1,	2314	xsize => (cf::rndm 15, 40),
1818	ysize => -1,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1819	};	2318	};
1820		2319
1821	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1822	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1823		2322
…		…
1837	# that depends on the exit object	2336	# that depends on the exit object
1838		2337
1839	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1840		2339
1841	if ($exit->map) {	2340	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1846	}	2345	}
1847		2346
1848	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1849		2348
1850	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1851	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
1852	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2351	my $meta = "$RANDOMDIR/$md5.meta";
1853		2352
1854	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1855	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
1856	undef $fh;	2355	undef $fh;
1857	aio_rename "$meta~", $meta;	2356	aio_rename "$meta~", $meta;
…		…
1864	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1865	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1866		2365
1867	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1868		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1869	$self->enter_link;	2379	$self->enter_link;
		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
1870		2384
1871	(async {	2385	(async {
1872	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1873	unless (eval {	2387	unless (eval {
1874	prepare_random_map $exit	2388	$self->goto ($slaying, $hp, $sp);
1875	if $exit->slaying eq "/!";
1876
1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1879		2389
1880	1;	2390	1;
1881	}) {	2391	}) {
1882	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1883	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1884	. "Please report this to the dungeon master!",	2394	. "Please report this to the dungeon master!",
1885	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1886		2396
1887	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1888	$self->leave_link;	2398	$self->leave_link;
1889	}	2399	}
1890	})->prio (1);	2400	})->prio (1);
…		…
1903		2413
1904	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1905	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1906		2416
1907	utf8::encode $text;	2417	utf8::encode $text;
1908	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909	}	2419	}
1910		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	return unless $self->extcmd;
		2471
		2472	$msg{msgtype} = "event_$type";
		2473	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2474	}
1911		2475
1912	=item $success = $client->query ($flags, "text", \&cb)	2476	=item $success = $client->query ($flags, "text", \&cb)
1913		2477
1914	Queues a query to the client, calling the given callback with	2478	Queues a query to the client, calling the given callback with
1915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2479	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2480	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1917		2481
1918	Queries can fail, so check the return code. Or don't, as queries will become	2482	Queries can fail, so check the return code. Or don't, as queries will
1919	reliable at some point in the future.	2483	become reliable at some point in the future.
1920		2484
1921	=cut	2485	=cut
1922		2486
1923	sub cf::client::query {	2487	sub cf::client::query {
1924	my ($self, $flags, $text, $cb) = @_;	2488	my ($self, $flags, $text, $cb) = @_;
…		…
1932	utf8::encode $text;	2496	utf8::encode $text;
1933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2497	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1934		2498
1935	$self->send_packet ($self->{query_queue}[0][0])	2499	$self->send_packet ($self->{query_queue}[0][0])
1936	if @{ $self->{query_queue} } == 1;	2500	if @{ $self->{query_queue} } == 1;
		2501
		2502	1
1937	}	2503	}
1938		2504
1939	cf::client->attach (	2505	cf::client->attach (
		2506	on_connect => sub {
		2507	my ($ns) = @_;
		2508
		2509	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2510	},
1940	on_reply => sub {	2511	on_reply => sub {
1941	my ($ns, $msg) = @_;	2512	my ($ns, $msg) = @_;
1942		2513
1943	# this weird shuffling is so that direct followup queries	2514	# this weird shuffling is so that direct followup queries
1944	# get handled first	2515	# get handled first
1945	my $queue = delete $ns->{query_queue}	2516	my $queue = delete $ns->{query_queue}
1946	or return; # be conservative, not sure how that can happen, but we saw a crash here	2517	or return; # be conservative, not sure how that can happen, but we saw a crash here
1947		2518
1948	(shift @$queue)->[1]->($msg);	2519	(shift @$queue)->[1]->($msg);
		2520	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949		2521
1950	push @{ $ns->{query_queue} }, @$queue;	2522	push @{ $ns->{query_queue} }, @$queue;
1951		2523
1952	if (@{ $ns->{query_queue} } == @$queue) {	2524	if (@{ $ns->{query_queue} } == @$queue) {
1953	if (@$queue) {	2525	if (@$queue) {
…		…
1955	} else {	2527	} else {
1956	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2528	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1957	}	2529	}
1958	}	2530	}
1959	},	2531	},
		2532	on_exticmd => sub {
		2533	my ($ns, $buf) = @_;
		2534
		2535	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2536
		2537	if (ref $msg) {
		2538	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2539	if (my %reply = $cb->($ns, $msg)) {
		2540	$reply{msgid} = $msg->{msgid};
		2541	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2542	}
		2543	}
		2544	} else {
		2545	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2546	}
		2547
		2548	cf::override;
		2549	},
1960	);	2550	);
1961		2551
1962	=item $client->async (\&cb)	2552	=item $client->async (\&cb)
1963		2553
1964	Create a new coroutine, running the specified callback. The coroutine will	2554	Create a new coroutine, running the specified callback. The coroutine will
…		…
2011		2601
2012	# here we export the classes and methods available to script code	2602	# here we export the classes and methods available to script code
2013		2603
2014	=pod	2604	=pod
2015		2605
2016	The following fucntions and emthods are available within a safe environment:	2606	The following functions and methods are available within a safe environment:
2017		2607
2018	cf::object contr pay_amount pay_player map	2608	cf::object
		2609	contr pay_amount pay_player map x y force_find force_add
		2610	insert remove
		2611
2019	cf::object::player player	2612	cf::object::player
2020	cf::player peaceful	2613	player
2021	cf::map trigger	2614
		2615	cf::player
		2616	peaceful
		2617
		2618	cf::map
		2619	trigger
2022		2620
2023	=cut	2621	=cut
2024		2622
2025	for (	2623	for (
2026	["cf::object" => qw(contr pay_amount pay_player map)],	2624	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2625	insert remove)],
2027	["cf::object::player" => qw(player)],	2626	["cf::object::player" => qw(player)],
2028	["cf::player" => qw(peaceful)],	2627	["cf::player" => qw(peaceful)],
2029	["cf::map" => qw(trigger)],	2628	["cf::map" => qw(trigger)],
2030	) {	2629	) {
2031	no strict 'refs';	2630	no strict 'refs';
…		…
2102	=back	2701	=back
2103		2702
2104	=cut	2703	=cut
2105		2704
2106	#############################################################################	2705	#############################################################################
		2706	# the server's init and main functions
2107		2707
2108	=head2 EXTENSION DATABASE SUPPORT	2708	sub load_facedata($) {
		2709	my ($path) = @_;
2109		2710
2110	Crossfire maintains a very simple database for extension use. It can	2711	warn "loading facedata from $path\n";
2111	currently store anything that can be serialised using Storable, which
2112	excludes objects.
2113		2712
2114	The parameter C<$family> should best start with the name of the extension	2713	my $facedata;
2115	using it, it should be unique.	2714	0 < aio_load $path, $facedata
		2715	or die "$path: $!";
2116		2716
2117	=over 4	2717	$facedata = Coro::Storable::thaw $facedata;
2118		2718
2119	=item $hashref = cf::db_get $family	2719	$facedata->{version} == 2
		2720	or cf::cleanup "$path: version mismatch, cannot proceed.";
2120		2721
2121	Return a hashref for use by the extension C<$family>, which can be
2122	modified. After modifications, you have to call C<cf::db_dirty> or
2123	C<cf::db_sync>.
2124
2125	=item $value = cf::db_get $family => $key
2126
2127	Returns a single value from the database
2128
2129	=item cf::db_put $family => $hashref
2130
2131	Stores the given family hashref into the database. Updates are delayed, if
2132	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2133
2134	=item cf::db_put $family => $key => $value
2135
2136	Stores the given C<$value> in the family hash. Updates are delayed, if you
2137	want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139	=item cf::db_dirty
2140
2141	Marks the database as dirty, to be updated at a later time.
2142
2143	=item cf::db_sync
2144
2145	Immediately write the database to disk I<if it is dirty>.
2146
2147	=cut
2148
2149	our $DB;
2150
2151	{
2152	my $path = cf::localdir . "/database.pst";
2153
2154	sub db_load() {
2155	$DB = stat $path ? Storable::retrieve $path : { };
2156	}	2722	{
		2723	my $faces = $facedata->{faceinfo};
2157		2724
2158	my $pid;	2725	while (my ($face, $info) = each %$faces) {
		2726	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2727	cf::face::set_visibility $idx, $info->{visibility};
		2728	cf::face::set_magicmap $idx, $info->{magicmap};
		2729	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2730	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2159		2731
2160	sub db_save() {	2732	cf::cede_to_tick;
2161	waitpid $pid, 0 if $pid;
2162	if (0 == ($pid = fork)) {
2163	$DB->{_meta}{version} = 1;
2164	Storable::nstore $DB, "$path~";
2165	rename "$path~", $path;
2166	cf::_exit 0 if defined $pid;
2167	}
2168	}
2169
2170	my $dirty;
2171
2172	sub db_sync() {
2173	db_save if $dirty;
2174	undef $dirty;
2175	}
2176
2177	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178	db_sync;
2179	});
2180
2181	sub db_dirty() {
2182	$dirty = 1;
2183	$idle->start;
2184	}
2185
2186	sub db_get($;$) {
2187	@_ >= 2
2188	? $DB->{$_[0]}{$_[1]}
2189	: ($DB->{$_[0]} ||= { })
2190	}
2191
2192	sub db_put($$;$) {
2193	if (@_ >= 3) {
2194	$DB->{$_[0]}{$_[1]} = $_[2];
2195	} else {
2196	$DB->{$_[0]} = $_[1];
2197	}
2198	db_dirty;
2199	}
2200
2201	cf::global->attach (
2202	prio => 10000,
2203	on_cleanup => sub {
2204	db_sync;
2205	},	2733	}
2206	);
2207	}
2208		2734
2209	#############################################################################	2735	while (my ($face, $info) = each %$faces) {
2210	# the server's main()	2736	next unless $info->{smooth};
		2737	my $idx = cf::face::find $face
		2738	or next;
		2739	if (my $smooth = cf::face::find $info->{smooth}) {
		2740	cf::face::set_smooth $idx, $smooth;
		2741	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2742	} else {
		2743	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2744	}
		2745
		2746	cf::cede_to_tick;
		2747	}
		2748	}
		2749
		2750	{
		2751	my $anims = $facedata->{animinfo};
		2752
		2753	while (my ($anim, $info) = each %$anims) {
		2754	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2755	cf::cede_to_tick;
		2756	}
		2757
		2758	cf::anim::invalidate_all; # d'oh
		2759	}
		2760
		2761	{
		2762	# TODO: for gcfclient pleasure, we should give resources
		2763	# that gcfclient doesn't grok a >10000 face index.
		2764	my $res = $facedata->{resource};
		2765	my $enc = JSON::XS->new->utf8->canonical;
		2766
		2767	while (my ($name, $info) = each %$res) {
		2768	my $meta = $enc->encode ({
		2769	name => $name,
		2770	type => $info->{type},
		2771	copyright => $info->{copyright}, #TODO#
		2772	});
		2773	my $data = pack "(w/a*)*", $meta, $info->{data};
		2774	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2775
		2776	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2777	cf::face::set_type $idx, 1;
		2778	cf::face::set_data $idx, 0, $data, $chk;
		2779
		2780	cf::cede_to_tick;
		2781	}
		2782	}
		2783
		2784	1
		2785	}
		2786
		2787	sub reload_regions {
		2788	load_resource_file "$MAPDIR/regions"
		2789	or die "unable to load regions file\n";
		2790
		2791	for (cf::region::list) {
		2792	$_->{match} = qr/$_->{match}/
		2793	if exists $_->{match};
		2794	}
		2795	}
		2796
		2797	sub reload_facedata {
		2798	load_facedata "$DATADIR/facedata"
		2799	or die "unable to load facedata\n";
		2800	}
		2801
		2802	sub reload_archetypes {
		2803	load_resource_file "$DATADIR/archetypes"
		2804	or die "unable to load archetypes\n";
		2805	#d# NEED to laod twice to resolve forward references
		2806	# this really needs to be done in an extra post-pass
		2807	# (which needs to be synchronous, so solve it differently)
		2808	load_resource_file "$DATADIR/archetypes"
		2809	or die "unable to load archetypes\n";
		2810	}
		2811
		2812	sub reload_treasures {
		2813	load_resource_file "$DATADIR/treasures"
		2814	or die "unable to load treasurelists\n";
		2815	}
		2816
		2817	sub reload_resources {
		2818	warn "reloading resource files...\n";
		2819
		2820	reload_regions;
		2821	reload_facedata;
		2822	#reload_archetypes;#d#
		2823	reload_archetypes;
		2824	reload_treasures;
		2825
		2826	warn "finished reloading resource files\n";
		2827	}
		2828
		2829	sub init {
		2830	reload_resources;
		2831	}
2211		2832
2212	sub cfg_load {	2833	sub cfg_load {
2213	open my $fh, "<:utf8", cf::confdir . "/config"	2834	open my $fh, "<:utf8", "$CONFDIR/config"
2214	or return;	2835	or return;
2215		2836
2216	local $/;	2837	local $/;
2217	*CFG = YAML::Syck::Load <$fh>;	2838	*CFG = YAML::Syck::Load <$fh>;
2218		2839
…		…
2238	Event::one_event;	2859	Event::one_event;
2239	})->prio (Coro::PRIO_MAX);	2860	})->prio (Coro::PRIO_MAX);
2240	};	2861	};
2241		2862
2242	cfg_load;	2863	cfg_load;
2243	db_load;	2864	db_init;
2244	load_extensions;	2865	load_extensions;
		2866
		2867	$TICK_WATCHER->start;
2245	Event::loop;	2868	Event::loop;
2246	}	2869	}
2247		2870
2248	#############################################################################	2871	#############################################################################
2249	# initialisation and cleanup	2872	# initialisation and cleanup
2250		2873
2251	# install some emergency cleanup handlers	2874	# install some emergency cleanup handlers
2252	BEGIN {	2875	BEGIN {
2253	for my $signal (qw(INT HUP TERM)) {	2876	for my $signal (qw(INT HUP TERM)) {
2254	Event->signal (	2877	Event->signal (
		2878	reentrant => 0,
2255	data => WF_AUTOCANCEL,	2879	data => WF_AUTOCANCEL,
2256	signal => $signal,	2880	signal => $signal,
		2881	prio => 0,
2257	cb => sub {	2882	cb => sub {
2258	cf::cleanup "SIG$signal";	2883	cf::cleanup "SIG$signal";
2259	},	2884	},
2260	);	2885	);
2261	}	2886	}
		2887	}
		2888
		2889	sub write_runtime {
		2890	my $runtime = "$LOCALDIR/runtime";
		2891
		2892	# first touch the runtime file to show we are still running:
		2893	# the fsync below can take a very very long time.
		2894
		2895	IO::AIO::aio_utime $runtime, undef, undef;
		2896
		2897	my $guard = cf::lock_acquire "write_runtime";
		2898
		2899	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2900	or return;
		2901
		2902	my $value = $cf::RUNTIME + 90 + 10;
		2903	# 10 is the runtime save interval, for a monotonic clock
		2904	# 60 allows for the watchdog to kill the server.
		2905
		2906	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2907	and return;
		2908
		2909	# always fsync - this file is important
		2910	aio_fsync $fh
		2911	and return;
		2912
		2913	# touch it again to show we are up-to-date
		2914	aio_utime $fh, undef, undef;
		2915
		2916	close $fh
		2917	or return;
		2918
		2919	aio_rename "$runtime~", $runtime
		2920	and return;
		2921
		2922	warn "runtime file written.\n";
		2923
		2924	1
2262	}	2925	}
2263		2926
2264	sub emergency_save() {	2927	sub emergency_save() {
2265	my $freeze_guard = cf::freeze_mainloop;	2928	my $freeze_guard = cf::freeze_mainloop;
2266		2929
…		…
2283	my $map = $cf::MAP{$path} or next;	2946	my $map = $cf::MAP{$path} or next;
2284	$map->valid or next;	2947	$map->valid or next;
2285	$map->save;	2948	$map->save;
2286	}	2949	}
2287	warn "end emergency map save\n";	2950	warn "end emergency map save\n";
		2951
		2952	warn "begin emergency database checkpoint\n";
		2953	BDB::db_env_txn_checkpoint $DB_ENV;
		2954	warn "end emergency database checkpoint\n";
2288	};	2955	};
2289		2956
2290	warn "leave emergency perl save\n";	2957	warn "leave emergency perl save\n";
2291	}	2958	}
2292		2959
		2960	sub post_cleanup {
		2961	my ($make_core) = @_;
		2962
		2963	warn Carp::longmess "post_cleanup backtrace"
		2964	if $make_core;
		2965	}
		2966
2293	sub reload() {	2967	sub do_reload_perl() {
2294	# can/must only be called in main	2968	# can/must only be called in main
2295	if ($Coro::current != $Coro::main) {	2969	if ($Coro::current != $Coro::main) {
2296	warn "can only reload from main coroutine\n";	2970	warn "can only reload from main coroutine";
2297	return;	2971	return;
2298	}	2972	}
2299		2973
2300	warn "reloading...";	2974	warn "reloading...";
2301		2975
2302	warn "freezing server";	2976	warn "entering sync_job";
2303	my $guard = freeze_mainloop;	2977
		2978	cf::sync_job {
		2979	cf::write_runtime; # external watchdog should not bark
2304	cf::emergency_save;	2980	cf::emergency_save;
		2981	cf::write_runtime; # external watchdog should not bark
2305		2982
2306	warn "sync database to disk";	2983	warn "syncing database to disk";
2307	cf::db_sync;	2984	BDB::db_env_txn_checkpoint $DB_ENV;
2308	IO::AIO::flush;
2309		2985
2310	eval {
2311	# if anything goes wrong in here, we should simply crash as we already saved	2986	# if anything goes wrong in here, we should simply crash as we already saved
2312		2987
2313	warn "cancel all watchers";	2988	warn "cancelling all WF_AUTOCANCEL watchers";
2314	for (Event::all_watchers) {	2989	for (Event::all_watchers) {
2315	$_->cancel if $_->data & WF_AUTOCANCEL;	2990	$_->cancel if $_->data & WF_AUTOCANCEL;
2316	}	2991	}
2317		2992
		2993	warn "flushing outstanding aio requests";
		2994	for (;;) {
		2995	BDB::flush;
		2996	IO::AIO::flush;
		2997	Coro::cede;
		2998	last unless IO::AIO::nreqs || BDB::nreqs;
		2999	warn "iterate...";
		3000	}
		3001
		3002	++$RELOAD;
		3003
2318	warn "cancel all extension coros";	3004	warn "cancelling all extension coros";
2319	$_->cancel for values %EXT_CORO;	3005	$_->cancel for values %EXT_CORO;
2320	%EXT_CORO = ();	3006	%EXT_CORO = ();
2321		3007
2322	warn "remove commands";	3008	warn "removing commands";
2323	%COMMAND = ();	3009	%COMMAND = ();
2324		3010
2325	warn "remove ext commands";	3011	warn "removing ext/exti commands";
2326	%EXTCMD = ();	3012	%EXTCMD = ();
		3013	%EXTICMD = ();
2327		3014
2328	warn "unload/nuke all extensions";	3015	warn "unloading/nuking all extensions";
2329	for my $pkg (@EXTS) {	3016	for my $pkg (@EXTS) {
2330	warn "... unloading $pkg";	3017	warn "... unloading $pkg";
2331		3018
2332	if (my $cb = $pkg->can ("unload")) {	3019	if (my $cb = $pkg->can ("unload")) {
2333	eval {	3020	eval {
…		…
2338		3025
2339	warn "... nuking $pkg";	3026	warn "... nuking $pkg";
2340	Symbol::delete_package $pkg;	3027	Symbol::delete_package $pkg;
2341	}	3028	}
2342		3029
2343	warn "unload all perl modules loaded from $LIBDIR";	3030	warn "unloading all perl modules loaded from $LIBDIR";
2344	while (my ($k, $v) = each %INC) {	3031	while (my ($k, $v) = each %INC) {
2345	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3032	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2346		3033
2347	warn "removing <$k>";	3034	warn "... unloading $k";
2348	delete $INC{$k};	3035	delete $INC{$k};
2349		3036
2350	$k =~ s/\.pm$//;	3037	$k =~ s/\.pm$//;
2351	$k =~ s/\//::/g;	3038	$k =~ s/\//::/g;
2352		3039
…		…
2355	}	3042	}
2356		3043
2357	Symbol::delete_package $k;	3044	Symbol::delete_package $k;
2358	}	3045	}
2359		3046
2360	warn "get rid of safe::, as good as possible";	3047	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3048	Symbol::delete_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3049	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3050
2364	warn "unload cf.pm \"a bit\"";	3051	warn "unloading cf.pm \"a bit\"";
2365	delete $INC{"cf.pm"};	3052	delete $INC{"cf.pm"};
		3053	delete $INC{"cf/pod.pm"};
2366		3054
2367	# don't, removes xs symbols, too,	3055	# don't, removes xs symbols, too,
2368	# and global variables created in xs	3056	# and global variables created in xs
2369	#Symbol::delete_package __PACKAGE__;	3057	#Symbol::delete_package __PACKAGE__;
2370		3058
		3059	warn "unload completed, starting to reload now";
		3060
2371	warn "reloading cf.pm";	3061	warn "reloading cf.pm";
2372	require cf;	3062	require cf;
2373	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3063	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2374		3064
2375	warn "load config and database again";	3065	warn "loading config and database again";
2376	cf::cfg_load;	3066	cf::cfg_load;
2377	cf::db_load;
2378		3067
2379	warn "load extensions";	3068	warn "loading extensions";
2380	cf::load_extensions;	3069	cf::load_extensions;
2381		3070
2382	warn "reattach attachments to objects/players";	3071	warn "reattaching attachments to objects/players";
2383	_global_reattach;	3072	_global_reattach; # objects, sockets
2384	warn "reattach attachments to maps";	3073	warn "reattaching attachments to maps";
2385	reattach $_ for values %MAP;	3074	reattach $_ for values %MAP;
2386	};	3075	warn "reattaching attachments to players";
		3076	reattach $_ for values %PLAYER;
2387		3077
2388	if ($@) {	3078	warn "leaving sync_job";
		3079
		3080	1
		3081	} or do {
2389	warn $@;	3082	warn $@;
2390	warn "error while reloading, exiting.";	3083	warn "error while reloading, exiting.";
2391	exit 1;	3084	exit 1;
2392	}	3085	};
2393		3086
2394	warn "reloaded";	3087	warn "reloaded";
2395	};	3088	};
2396		3089
2397	our $RELOAD_WATCHER; # used only during reload	3090	our $RELOAD_WATCHER; # used only during reload
2398		3091
		3092	sub reload_perl() {
		3093	# doing reload synchronously and two reloads happen back-to-back,
		3094	# coro crashes during coro_state_free->destroy here.
		3095
		3096	$RELOAD_WATCHER ||= Event->timer (
		3097	reentrant => 0,
		3098	after => 0,
		3099	data => WF_AUTOCANCEL,
		3100	cb => sub {
		3101	do_reload_perl;
		3102	undef $RELOAD_WATCHER;
		3103	},
		3104	);
		3105	}
		3106
2399	register_command "reload" => sub {	3107	register_command "reload" => sub {
2400	my ($who, $arg) = @_;	3108	my ($who, $arg) = @_;
2401		3109
2402	if ($who->flag (FLAG_WIZ)) {	3110	if ($who->flag (FLAG_WIZ)) {
2403	$who->message ("reloading server.");	3111	$who->message ("reloading server.");
2404		3112	async { reload_perl };
2405	# doing reload synchronously and two reloads happen back-to-back,
2406	# coro crashes during coro_state_free->destroy here.
2407
2408	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2409	reload;
2410	undef $RELOAD_WATCHER;
2411	});
2412	}	3113	}
2413	};	3114	};
2414		3115
2415	unshift @INC, $LIBDIR;	3116	unshift @INC, $LIBDIR;
2416		3117
		3118	my $bug_warning = 0;
		3119
		3120	our @WAIT_FOR_TICK;
		3121	our @WAIT_FOR_TICK_BEGIN;
		3122
		3123	sub wait_for_tick {
		3124	return unless $TICK_WATCHER->is_active;
		3125	return if $Coro::current == $Coro::main;
		3126
		3127	my $signal = new Coro::Signal;
		3128	push @WAIT_FOR_TICK, $signal;
		3129	$signal->wait;
		3130	}
		3131
		3132	sub wait_for_tick_begin {
		3133	return unless $TICK_WATCHER->is_active;
		3134	return if $Coro::current == $Coro::main;
		3135
		3136	my $signal = new Coro::Signal;
		3137	push @WAIT_FOR_TICK_BEGIN, $signal;
		3138	$signal->wait;
		3139	}
		3140
		3141	my $min = 1e6;#d#
		3142	my $avg = 10;
2417	$TICK_WATCHER = Event->timer (	3143	$TICK_WATCHER = Event->timer (
2418	reentrant => 0,	3144	reentrant => 0,
		3145	parked => 1,
2419	prio => 0,	3146	prio => 0,
2420	at => $NEXT_TICK || $TICK,	3147	at => $NEXT_TICK || $TICK,
2421	data => WF_AUTOCANCEL,	3148	data => WF_AUTOCANCEL,
2422	cb => sub {	3149	cb => sub {
		3150	if ($Coro::current != $Coro::main) {
		3151	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3152	unless ++$bug_warning > 10;
		3153	return;
		3154	}
		3155
2423	$NOW = Event::time;	3156	$NOW = $tick_start = Event::time;
2424		3157
2425	cf::server_tick; # one server iteration	3158	cf::server_tick; # one server iteration
		3159
		3160	0 && sync_job {#d#
		3161	for(1..10) {
		3162	my $t = Event::time;
		3163	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3164	or die;
		3165
		3166	$map->width (50);
		3167	$map->height (50);
		3168	$map->alloc;
		3169	$map->_load_objects ("/tmp/x.map", 1);
		3170	my $t = Event::time - $t;
		3171
		3172	#next unless $t < 0.0013;#d#
		3173	if ($t < $min) {
		3174	$min = $t;
		3175	}
		3176	$avg = $avg * 0.99 + $t * 0.01;
		3177	}
		3178	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3179	exit 0;
		3180	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3181	};
		3182
2426	$RUNTIME += $TICK;	3183	$RUNTIME += $TICK;
2427	$NEXT_TICK += $TICK;	3184	$NEXT_TICK += $TICK;
2428		3185
2429	$WAIT_FOR_TICK->broadcast;	3186	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2430	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3187	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3188	Coro::async_pool {
		3189	write_runtime
		3190	or warn "ERROR: unable to write runtime file: $!";
		3191	};
		3192	}
		3193
		3194	# my $AFTER = Event::time;
		3195	# warn $AFTER - $NOW;#d#
		3196
		3197	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3198	$sig->send;
		3199	}
		3200	while (my $sig = shift @WAIT_FOR_TICK) {
		3201	$sig->send;
		3202	}
		3203
		3204	$NOW = Event::time;
2431		3205
2432	# if we are delayed by four ticks or more, skip them all	3206	# if we are delayed by four ticks or more, skip them all
2433	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3207	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2434		3208
2435	$TICK_WATCHER->at ($NEXT_TICK);	3209	$TICK_WATCHER->at ($NEXT_TICK);
2436	$TICK_WATCHER->start;	3210	$TICK_WATCHER->start;
		3211
		3212	$LOAD = ($NOW - $tick_start) / $TICK;
		3213	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3214
		3215	_post_tick;
		3216
		3217
2437	},	3218	},
2438	);	3219	);
2439		3220
		3221	{
		3222	BDB::max_poll_time $TICK * 0.1;
		3223	$BDB_POLL_WATCHER = Event->io (
		3224	reentrant => 0,
		3225	fd => BDB::poll_fileno,
		3226	poll => 'r',
		3227	prio => 0,
		3228	data => WF_AUTOCANCEL,
		3229	cb => \&BDB::poll_cb,
		3230	);
		3231	BDB::min_parallel 8;
		3232
		3233	BDB::set_sync_prepare {
		3234	my $status;
		3235	my $current = $Coro::current;
		3236	(
		3237	sub {
		3238	$status = $!;
		3239	$current->ready; undef $current;
		3240	},
		3241	sub {
		3242	Coro::schedule while defined $current;
		3243	$! = $status;
		3244	},
		3245	)
		3246	};
		3247
		3248	unless ($DB_ENV) {
		3249	$DB_ENV = BDB::db_env_create;
		3250
		3251	cf::sync_job {
		3252	eval {
		3253	BDB::db_env_open
		3254	$DB_ENV,
		3255	$BDBDIR,
		3256	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3257	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3258	0666;
		3259
		3260	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3261
		3262	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3263	$DB_ENV->set_lk_detect;
		3264	};
		3265
		3266	cf::cleanup "db_env_open(db): $@" if $@;
		3267	};
		3268	}
		3269	}
		3270
		3271	{
		3272	IO::AIO::min_parallel 8;
		3273
		3274	undef $Coro::AIO::WATCHER;
2440	IO::AIO::max_poll_time $TICK * 0.2;	3275	IO::AIO::max_poll_time $TICK * 0.1;
2441
2442	$AIO_POLL_WATCHER = Event->io (	3276	$AIO_POLL_WATCHER = Event->io (
2443	fd => IO::AIO::poll_fileno,	3277	reentrant => 0,
2444	poll => 'r',
2445	prio => 5,
2446	data => WF_AUTOCANCEL,
2447	cb => \&IO::AIO::poll_cb,
2448	);
2449
2450	$WRITE_RUNTIME_WATCHER = Event->timer (
2451	data => WF_AUTOCANCEL,	3278	data => WF_AUTOCANCEL,
2452	after => 0,	3279	fd => IO::AIO::poll_fileno,
2453	interval => 10,	3280	poll => 'r',
2454	cb => sub {	3281	prio => 6,
2455	(Coro::unblock_sub {	3282	cb => \&IO::AIO::poll_cb,
2456	write_runtime	3283	);
2457	or warn "ERROR: unable to write runtime file: $!";	3284	}
		3285
		3286	my $_log_backtrace;
		3287
		3288	sub _log_backtrace {
		3289	my ($msg, @addr) = @_;
		3290
		3291	$msg =~ s/\n//;
		3292
		3293	# limit the # of concurrent backtraces
		3294	if ($_log_backtrace < 2) {
		3295	++$_log_backtrace;
		3296	async {
		3297	my @bt = fork_call {
		3298	@addr = map { sprintf "%x", $_ } @addr;
		3299	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3300	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3301	or die "addr2line: $!";
		3302
		3303	my @funcs;
		3304	my @res = <$fh>;
		3305	chomp for @res;
		3306	while (@res) {
		3307	my ($func, $line) = splice @res, 0, 2, ();
		3308	push @funcs, "[$func] $line";
		3309	}
		3310
		3311	@funcs
		3312	};
		3313
		3314	LOG llevInfo, "[ABT] $msg\n";
		3315	LOG llevInfo, "[ABT] $_\n" for @bt;
		3316	--$_log_backtrace;
2458	})->();	3317	};
		3318	} else {
		3319	LOG llevInfo, "[ABT] $msg\n";
		3320	LOG llevInfo, "[ABT] [suppressed]\n";
2459	},	3321	}
2460	);	3322	}
		3323
		3324	# load additional modules
		3325	use cf::pod;
2461		3326
2462	END { cf::emergency_save }	3327	END { cf::emergency_save }
2463		3328
2464	1	3329	1
2465		3330

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