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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.172 by root, Sun Jan 14 13:32:48 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
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;
26		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
53		84
54	our %CFG;	85	our %CFG;
55		86
56	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	88	our $RUNTIME;
58		89
59	our %PLAYER; # all users	90	our %PLAYER; # all users
60	our %MAP; # all maps	91	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
67	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
70	binmode STDOUT;	101	binmode STDOUT;
71	binmode STDERR;	102	binmode STDERR;
72		103
73	# read virtual server time, if available	104	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
78	}	109	}
79		110
80	mkdir cf::localdir;	111	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		113
86	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
87		117
88	#############################################################################	118	#############################################################################
89		119
90	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
91		121
…		…
98	=item $cf::RUNTIME	128	=item $cf::RUNTIME
99		129
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	131	every server tick.
102		132
103	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		136
105	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
107		141
108	=item $cf::NOW	142	=item $cf::NOW
109		143
110	The time of the last (current) server tick.	144	The time of the last (current) server tick.
111		145
112	=item $cf::TICK	146	=item $cf::TICK
113		147
114	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
115		159
116	=item %cf::CFG	160	=item %cf::CFG
117		161
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	163	from wherever your confdir points to.
120		164
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		166
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	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	168	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	169	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		170
128	=back	171	=back
129		172
130	=cut	173	=cut
131		174
132	BEGIN {	175	BEGIN {
133	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	177	my $msg = join "", @_;
135	utf8::encode $msg;
136		178
137	$msg .= "\n"	179	$msg .= "\n"
138	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
139		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
140	LOG llevError, $msg;	185	LOG llevError, $msg;
141	};	186	};
142	}	187	}
143		188
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		196
151	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	198	# within the Safe compartment.
153	for my $pkg (qw(	199	for my $pkg (qw(
154	cf::global cf::attachable	200	cf::global cf::attachable
…		…
162	}	208	}
163		209
164	$Event::DIED = sub {	210	$Event::DIED = sub {
165	warn "error in event callback: @_";	211	warn "error in event callback: @_";
166	};	212	};
		213
		214	#############################################################################
167		215
168	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
169		217
170	=over 4	218	=over 4
171		219
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	239	$d
192	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
193	}	241	}
194		242
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211		250
212	=cut	251	=cut
213		252
214	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
216	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
218		257
219	=item cf::lock_wait $string	258	=item cf::lock_wait $string
220		259
221	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
222		261
…		…
228	returned.	267	returned.
229		268
230	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
232		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
233	=cut	276	=cut
234		277
235	our %LOCK;	278	our %LOCK;
236		279
237	sub lock_wait($) {	280	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
258	}	301	}
259	}	302	}
260		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
261	sub freeze_mainloop {	310	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
263		312
264	my $guard = Coro::guard {	313	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	315	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
270	$guard	317	$guard
271	}	318	}
272		319
273	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
280		327
281	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
282		329
283	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
284		331
285	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
288		336
289	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
292	fast or be very important.	340	fast or be very important.
…		…
295		343
296	sub sync_job(&) {	344	sub sync_job(&) {
297	my ($job) = @_;	345	my ($job) = @_;
298		346
299	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
300	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
302		352
303	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
315		365
316	while ($busy) {	366	while ($busy) {
317	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
318	}	368	}
319		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
320	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
321	} else {	378	} else {
322	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
323		380
324	$job->()	381	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
344		401
345	$coro	402	$coro
346	}	403	}
347		404
348	sub write_runtime {	405	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		406
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
352	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
353		411
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		413
358	aio_fsync $fh	414	sub fork_call(&@) {
359	and return;	415	my ($cb, @args) = @_;
360		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
361	close $fh	423	close $fh2;
362	or return;
363		424
364	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	426	$res = Coro::Storable::thaw $res;
366		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
367	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	574	}
369		575
370	=back	576	=back
371		577
372	=cut	578	=cut
…		…
379	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
381		587
382	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	590	Crossfire TRT).
385		591
386	=over 4	592	=over 4
387		593
388	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
389		595
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
553		759
554	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		764
559	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	766	my $pkg = shift @arg;
561		767
562	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
592	}	798	}
593		799
594	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
595	} else {	801	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	803	}
598		804
599	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
600	}	806	}
601		807
…		…
603	if (ref $_[0]) {	809	if (ref $_[0]) {
604	_object_attach @_;	810	_object_attach @_;
605	} else {	811	} else {
606	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
607	}	813	}
		814	_recalc_want;
608	};	815	};
609		816
610	# all those should be optimised	817	# all those should be optimised
611	sub cf::attachable::detach {	818	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
616	reattach ($obj);	823	reattach ($obj);
617	} else {	824	} else {
618	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
619	}	826	}
		827	_recalc_want;
620	};	828	};
621		829
622	sub cf::attachable::attached {	830	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
624		832
…		…
747	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
748		956
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	961	close $fh;
754		962
755	if (@$objs) {	963	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	969	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
763	}	971	}
764	} else {	972	} else {
765	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
797	or return;	1005	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1007	}
800		1008
801	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1011	return ($data, $av);
804	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
805		1019
806	#############################################################################	1020	#############################################################################
807	# command handling &c	1021	# command handling &c
808		1022
809	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1037	}
824		1038
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1040
827	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
828		1046
829	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
830	called.	1048	called.
831		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
832	=cut	1061	=cut
833		1062
834	sub register_extcmd {	1063	sub register_extcmd {
835	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
836		1065
837	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
838	}	1073	}
839		1074
840	cf::player->attach (	1075	cf::player->attach (
841	on_command => sub {	1076	on_command => sub {
842	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
867		1102
868	cf::override;	1103	cf::override;
869	},	1104	},
870	);	1105	);
871		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
907	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1112	next unless -r $path;
909	eval {	1113
910	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
911	1	1171	}
912	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
913	}	1177	};
914	}	1178	}
915		1179
916	#############################################################################	1180	#############################################################################
917		1181
		1182	=back
		1183
918	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
919		1185
920	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
921		1187
922	=cut	1188	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
935		1201
936	=cut	1202	=cut
937		1203
938	sub playerdir($) {	1204	sub playerdir($) {
939	cf::localdir	1205	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1207	}
945		1208
946	sub path($) {	1209	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1211
949	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
950	}	1213	}
951		1214
952	sub find_active($) {	1215	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
957		1220
958	sub exists($) {	1221	sub exists($) {
959	my ($login) = @_;	1222	my ($login) = @_;
960		1223
961	$cf::PLAYER{$login}	1224	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1225	or cf::sync_job { !aio_stat path $login }
963	}	1226	}
964		1227
965	sub find($) {	1228	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1229	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1230	my $login = $_[0];
968		1231
969	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
970		1233
971	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
972	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
973	or return;	1243	or return;
974	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
975	}	1245	}
976	}	1246	}
…		…
1013		1283
1014	=cut	1284	=cut
1015		1285
1016	sub quit_character {	1286	sub quit_character {
1017	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1018		1290
1019	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1021		1293
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1032	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1033	}	1325	}
1034		1326
1035	=item cf::player::list_logins	1327	=item cf::player::list_logins
1036		1328
1037	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1039		1331
1040	=cut	1332	=cut
1041		1333
1042	sub list_logins {	1334	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1336	or return [];
1045		1337
1046	my @logins;	1338	my @logins;
1047		1339
1048	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1065	=cut	1357	=cut
1066		1358
1067	sub maps($) {	1359	sub maps($) {
1068	my ($pl) = @_;	1360	my ($pl) = @_;
1069		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1070	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1071	or return;	1365	or return;
1072		1366
1073	my @paths;	1367	my @paths;
1074		1368
1075	for (@$files) {	1369	for (@$files) {
1076	utf8::decode $_;	1370	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1079		1373
1080	s/\.map$//;	1374	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1375	}
1083		1376
1084	\@paths	1377	\@paths
1085	}	1378	}
1086		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1088		1414
1089	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1090		1416
1091	=cut	1417	=cut
1092		1418
1093	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1095		1421
1096	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1097
1098	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1099	}	1424	}
1100		1425
1101	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
1102		1466
1103	=back	1467	=back
1104
1105		1468
1106	=head3 cf::map	1469	=head3 cf::map
1107		1470
1108	=over 4	1471	=over 4
1109		1472
…		…
1113		1476
1114	use Fcntl;	1477	use Fcntl;
1115	use Coro::AIO;	1478	use Coro::AIO;
1116		1479
1117	use overload	1480	use overload
1118	'""' => \&as_string;	1481	'""' => \&as_string,
		1482	fallback => 1;
1119		1483
1120	our $MAX_RESET = 3600;	1484	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	1485	our $DEFAULT_RESET = 3000;
1122		1486
1123	sub generate_random_map {	1487	sub generate_random_map {
1124	my ($self, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1125
1126	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1490	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1502	)
1140	}	1503	}
1141		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
1142	sub register {	1513	sub register {
1143	my (undef, $regex) = @_;	1514	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1515	my $pkg = caller;
1145		1516
1146	no strict;	1517	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1518	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1519
1149	$EXT_MAP{$pkg} = qr<$regex>;	1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1521	}
1151		1522
1152	# also paths starting with '/'	1523	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1525
1155	sub thawer_merge {	1526	sub thawer_merge {
1156	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1157		1528
1158	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1159	local $self->{path};	1530	local $self->{path};
1160	local $self->{load_path};	1531	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1532
1164	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1165	}	1534	}
1166		1535
1167	sub normalise {	1536	sub normalise {
1168	my ($path, $base) = @_;	1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
1169		1542
1170	# map plan:	1543	# map plan:
1171	#	1544	#
1172	# /! non-realised random map exit (special hack!)	1545	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1546	# {... are special paths that are not being touched
…		…
1201		1574
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1576
1204	$path = normalise $path, $base;	1577	$path = normalise $path, $base;
1205		1578
1206	for my $pkg (keys %EXT_MAP) {	1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1581	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1582	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1583	$self->init; # pass $1 etc.
1211	return $self;	1584	return $self;
1212	}	1585	}
1213	}	1586	}
1214		1587
1215	Carp::carp "unable to resolve path '$path'.";	1588	Carp::carp "unable to resolve path '$path' (base '$base').";
1216	()	1589	()
1217	}	1590	}
1218		1591
1219	sub init {	1592	sub init {
1220	my ($self) = @_;	1593	my ($self) = @_;
…		…
1235		1608
1236	# the original (read-only) location	1609	# the original (read-only) location
1237	sub load_path {	1610	sub load_path {
1238	my ($self) = @_;	1611	my ($self) = @_;
1239		1612
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1241	}	1614	}
1242		1615
1243	# the temporary/swap location	1616	# the temporary/swap location
1244	sub save_path {	1617	sub save_path {
1245	my ($self) = @_;	1618	my ($self) = @_;
1246		1619
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1249	}	1622	}
1250		1623
1251	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1252	sub uniq_path {	1625	sub uniq_path {
1253	my ($self) = @_;	1626	my ($self) = @_;
1254		1627
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1257	}	1630	}
1258		1631
1259	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1260	# all maps in C++...	1633	# all maps in C++...
1261	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1263		1636
1264	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1266	}	1639	}
1267		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
1268	sub unlink_save {	1649	sub unlink_save {
1269	my ($self) = @_;	1650	my ($self) = @_;
1270		1651
1271	utf8::encode (my $save = $self->save_path);	1652	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1656
1276	sub load_header_from($) {	1657	sub load_header_from($) {
1277	my ($self, $path) = @_;	1658	my ($self, $path) = @_;
1278		1659
1279	utf8::encode $path;	1660	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
1281	or return;	1662	# or return;
1282		1663
1283	$self->_load_header ($path)	1664	$self->_load_header ($path)
1284	or return;	1665	or return;
1285		1666
1286	$self->{load_path} = $path;	1667	$self->{load_path} = $path;
1287		1668
1288	1	1669	1
1289	}	1670	}
1290		1671
1291	sub load_orig {	1672	sub load_header_orig {
1292	my ($self) = @_;	1673	my ($self) = @_;
1293		1674
1294	$self->load_header_from ($self->load_path)	1675	$self->load_header_from ($self->load_path)
1295	}	1676	}
1296		1677
1297	sub load_temp {	1678	sub load_header_temp {
1298	my ($self) = @_;	1679	my ($self) = @_;
1299		1680
1300	$self->load_header_from ($self->save_path)	1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
1301	}	1701	}
1302		1702
1303	sub load_header {	1703	sub load_header {
1304	my ($self) = @_;	1704	my ($self) = @_;
1305		1705
1306	if ($self->load_temp) {	1706	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1707	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1708	} else {
1313	$self->load_orig	1709	$self->load_header_orig
1314	or return;	1710	or return;
1315		1711	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1712	}
		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
1321		1719
1322	1	1720	1
1323	}	1721	}
1324		1722
1325	sub find;	1723	sub find;
…		…
1338	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1339		1737
1340	$map->load_header	1738	$map->load_header
1341	or return;	1739	or return;
1342		1740
1343	if ($map->should_reset) {	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1345	$map->reset;	1744	$map->reset;
1346	undef $guard;	1745	undef $guard;
1347	$map = find $path	1746	return find $path;
1348	or return;
1349	}	1747	}
1350		1748
1351	$cf::MAP{$path} = $map	1749	$cf::MAP{$path} = $map
1352	}	1750	}
1353	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1354		1755
1355	sub load {	1756	sub load {
1356	my ($self) = @_;	1757	my ($self) = @_;
1357		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1358	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1359	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1360		1765
1361	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1362		1767
1363	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1364		1769
1365	$self->alloc;	1770	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)
1367	or return;
1368		1771
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1772	$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;	1773	Coro::cede;
1390	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1391	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	1793	unless $self->difficulty;
1393	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1394	$self->activate;	1803	$self->activate;
1395	}	1804	}
1396		1805
1397	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
		1807	}
		1808
		1809	$self->post_load;
1398	}	1810	}
1399		1811
1400	sub customise_for {	1812	sub customise_for {
1401	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1402		1814
1403	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1405		1820
1406	$self	1821	$self
1407	}	1822	}
1408		1823
1409	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1441		1856
1442	cf::sync_job { $map->load };	1857	cf::sync_job { $map->load };
1443	}	1858	}
1444		1859
1445	our %MAP_PREFETCH;	1860	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	1861	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		1862
1459	sub find_async {	1863	sub find_async {
1460	my ($path, $origin) = @_;	1864	my ($path, $origin) = @_;
1461		1865
1462	$path = normalise $path, $origin && $origin->{path};	1866	$path = normalise $path, $origin && $origin->{path};
1463		1867
1464	if (my $map = $cf::MAP{$path}) {	1868	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466	}	1870	}
1467		1871
1468	$MAP_PREFETCH{$path} = 0;	1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
		1878	$map->load;
		1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
		1884	};
1469	$MAP_PREFETCHER->ready;	1885	$MAP_PREFETCHER->prio (6);
1470		1886
1471	()	1887	()
1472	}	1888	}
1473		1889
1474	sub save {	1890	sub save {
…		…
1519		1935
1520	sub reset_at {	1936	sub reset_at {
1521	my ($self) = @_;	1937	my ($self) = @_;
1522		1938
1523	# TODO: safety, remove and allow resettable per-player maps	1939	# 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};	1940	return 1e99 if $self->{deny_reset};
1526		1941
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		1944
…		…
1534	my ($self) = @_;	1949	my ($self) = @_;
1535		1950
1536	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1537	}	1952	}
1538		1953
1539	sub rename {
1540	my ($self, $new_path) = @_;
1541
1542	normalise $new_path;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = $new_path; $self->path ($self->{path});
1548	$cf::MAP{$self->path} = $self;
1549
1550	$self->save;
1551	}
1552
1553	sub reset {	1954	sub reset {
1554	my ($self) = @_;	1955	my ($self) = @_;
1555		1956
1556	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1557		1958
1558	return if $self->players;	1959	return if $self->players;
1559	return if $self->isa ("ext::map_per_player");#d#
1560		1960
1561	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1562		1972
1563	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
1564		1974
1565	$self->in_memory (cf::MAP_SWAPPED);
1566	$self->clear;	1975	$self->clear;
1567		1976
1568	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1569		1978
1570	$self->unlink_save;	1979	$self->unlink_save;
…		…
1574	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1575		1984
1576	sub nuke {	1985	sub nuke {
1577	my ($self) = @_;	1986	my ($self) = @_;
1578		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1579	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1580	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1581	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1582	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
		2001	}
		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
1583	}	2037	}
1584		2038
1585	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1586		2040
1587	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1588	instantiated unique items. May block.	2042	instantiated unique items. May block.
1589		2043
1590	=cut	2044	=cut
1591		2045
1592	sub unique_maps() {	2046	sub unique_maps() {
1593	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1594	or return;	2048	map {
1595
1596	my @paths;
1597
1598	for (@$files) {
1599	utf8::decode $_;	2049	utf8::decode $_;
1600	next if /\.pst$/;
1601	next unless /^$PATH_SEP/o;
1602
1603	s/\.map$//;	2050	/\.map$/
1604	push @paths, $_;	2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
1605	}	2054	]
1606
1607	\@paths
1608	}	2055	}
1609		2056
1610	package cf;	2057	package cf;
1611		2058
1612	=back	2059	=back
…		…
1658		2105
1659	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1660		2107
1661	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1662	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1663	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1664	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1665	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1666	}	2127	}
1667	}	2128	}
1668		2129
1669	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1670		2131
…		…
1703	=cut	2164	=cut
1704		2165
1705	sub link_map {	2166	sub link_map {
1706	unless ($LINK_MAP) {	2167	unless ($LINK_MAP) {
1707	$LINK_MAP = cf::map::find "{link}"	2168	$LINK_MAP = cf::map::find "{link}"
1708	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1709	$LINK_MAP->load;	2170	$LINK_MAP->load;
1710	}	2171	}
1711		2172
1712	$LINK_MAP	2173	$LINK_MAP
1713	}	2174	}
…		…
1718	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1719		2180
1720	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1721		2182
1722	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1723	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1724		2185
1725	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1726	}	2187	}
1727		2188
1728	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1729	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1730		2193
1731	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1732		2195
1733	unless ($map) {	2196	unless ($map) {
1734	# restore original map position	2197	# restore original map position
…		…
1752	$map->load;	2215	$map->load;
1753	$map->load_diag;	2216	$map->load_diag;
1754		2217
1755	return unless $self->contr->active;	2218	return unless $self->contr->active;
1756	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1757	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1758	}	2223	}
1759		2224
1760	cf::player->attach (
1761	on_logout => sub {
1762	my ($pl) = @_;
1763
1764	# abort map switching before logout
1765	if ($pl->ob->{_link_pos}) {
1766	cf::sync_job {
1767	$pl->ob->leave_link
1768	};
1769	}
1770	},
1771	on_login => sub {
1772	my ($pl) = @_;
1773
1774	# try to abort aborted map switching on player login :)
1775	# should happen only on crashes
1776	if ($pl->ob->{_link_pos}) {
1777	$pl->ob->enter_link;
1778	(async {
1779	# we need this sleep as the login has a concurrent enter_exit running
1780	# and this sleep increases chances of the player not ending up in scorn
1781	$pl->ob->reply (undef,
1782	"There was an internal problem at your last logout, "
1783	. "the server will try to bring you to your intended destination in a second.",
1784	cf::NDI_RED);
1785	Coro::Timer::sleep 1;
1786	$pl->ob->leave_link;
1787	})->prio (2);
1788	}
1789	},
1790	);
1791
1792	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1793		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1794	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1795		2235
1796	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1797	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1798		2241
1799	$self->enter_link;	2242	$self->enter_link;
1800		2243
1801	(async {	2244	(async {
		2245	my $map = eval {
1802	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1803	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1804		2250	$map = $check->($map) if $check && $map;
1805	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1806	# if $map;
1807
1808	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1809		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1810	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1811	})->prio (1);	2267	})->prio (1);
1812	}	2268	}
1813		2269
1814	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1815		2271
…		…
1817		2273
1818	sub parse_random_map_params {	2274	sub parse_random_map_params {
1819	my ($spec) = @_;	2275	my ($spec) = @_;
1820		2276
1821	my $rmp = { # defaults	2277	my $rmp = { # defaults
1822	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1823	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1824	};	2282	};
1825		2283
1826	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1827	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1828		2286
…		…
1832	$rmp	2290	$rmp
1833	}	2291	}
1834		2292
1835	sub prepare_random_map {	2293	sub prepare_random_map {
1836	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1837		2297
1838	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1839	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1840	# that depends on the exit object	2300	# that depends on the exit object
1841		2301
1842	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1843		2303
1844	if ($exit->map) {	2304	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1849	}	2309	}
1850		2310
1851	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1852		2312
1853	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1854	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1855		2316
1856	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1857	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1858		2321
1859	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1860	$exit->msg (undef);	2323	$exit->msg (undef);
1861	}	2324	}
1862	}	2325	}
1863		2326
1864	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1865	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1866		2329
1867	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
1868		2342
1869	$self->enter_link;	2343	$self->enter_link;
1870		2344
1871	(async {	2345	(async {
1872	$self->deactivate_recursive; # just to be sure	2346	$self->deactivate_recursive; # just to be sure
1873	unless (eval {	2347	unless (eval {
1874	prepare_random_map $exit	2348	$self->goto ($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		2349
1880	1;	2350	1;
1881	}) {	2351	}) {
1882	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1883	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1884	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1885	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1886		2356
1887	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1888	$self->leave_link;	2358	$self->leave_link;
1889	}	2359	}
1890	})->prio (1);	2360	})->prio (1);
…		…
1903		2373
1904	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1905	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1906		2376
1907	utf8::encode $text;	2377	utf8::encode $text;
1908	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909	}	2379	}
1910		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1911		2431
1912	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1913		2433
1914	Queues a query to the client, calling the given callback with	2434	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>,	2435	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>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1917		2437
1918	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1919	reliable at some point in the future.	2439	become reliable at some point in the future.
1920		2440
1921	=cut	2441	=cut
1922		2442
1923	sub cf::client::query {	2443	sub cf::client::query {
1924	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1932	utf8::encode $text;	2452	utf8::encode $text;
1933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1934		2454
1935	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1936	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1937	}	2459	}
1938		2460
1939	cf::client->attach (	2461	cf::client->attach (
1940	on_reply => sub {	2462	on_reply => sub {
1941	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1944	# get handled first	2466	# get handled first
1945	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1946	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1947		2469
1948	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949		2472
1950	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1951		2474
1952	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1953	if (@$queue) {	2476	if (@$queue) {
…		…
1955	} else {	2478	} else {
1956	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1957	}	2480	}
1958	}	2481	}
1959	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1960	);	2501	);
1961		2502
1962	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
1963		2504
1964	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
…		…
2011		2552
2012	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
2013		2554
2014	=pod	2555	=pod
2015		2556
2016	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
2017		2558
2018	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
2019	cf::object::player player	2560	cf::object::player player
2020	cf::player peaceful	2561	cf::player peaceful
2021	cf::map trigger	2562	cf::map trigger
…		…
2102	=back	2643	=back
2103		2644
2104	=cut	2645	=cut
2105		2646
2106	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
2107		2649
2108	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
2109		2652
2110	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
2111	currently store anything that can be serialised using Storable, which
2112	excludes objects.
2113		2654
2114	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
2115	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
2116		2658
2117	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
2118		2660
2119	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
2120		2663
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	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
2157		2666
2158	my $pid;	2667	while (my ($face, $info) = each %$faces) {
2159		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2160	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2161	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2162	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2163	$DB->{_meta}{version} = 1;	2672	Coro::cede;
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]} = $_[1];
2197	}
2198	db_dirty;
2199	}
2200
2201	cf::global->attach (
2202	prio => 10000,
2203	on_cleanup => sub {
2204	db_sync;
2205	},	2673	}
2206	);
2207	}
2208		2674
2209	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
2210	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
		2722	sub reload_resources {
		2723	warn "reloading resource files...\n";
		2724
		2725	reload_regions;
		2726	reload_facedata;
		2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
		2732	}
		2733
		2734	sub init {
		2735	reload_resources;
		2736	}
2211		2737
2212	sub cfg_load {	2738	sub cfg_load {
2213	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
2214	or return;	2740	or return;
2215		2741
2216	local $/;	2742	local $/;
2217	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
2218		2744
…		…
2232		2758
2233	sub main {	2759	sub main {
2234	# we must not ever block the main coroutine	2760	# we must not ever block the main coroutine
2235	local $Coro::idle = sub {	2761	local $Coro::idle = sub {
2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2762	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2763	(async {
2237	async { Event::one_event };	2764	Event::one_event;
		2765	})->prio (Coro::PRIO_MAX);
2238	};	2766	};
2239		2767
2240	cfg_load;	2768	cfg_load;
2241	db_load;	2769	db_init;
2242	load_extensions;	2770	load_extensions;
		2771
		2772	$TICK_WATCHER->start;
2243	Event::loop;	2773	Event::loop;
2244	}	2774	}
2245		2775
2246	#############################################################################	2776	#############################################################################
2247	# initialisation and cleanup	2777	# initialisation and cleanup
2248		2778
2249	# install some emergency cleanup handlers	2779	# install some emergency cleanup handlers
2250	BEGIN {	2780	BEGIN {
2251	for my $signal (qw(INT HUP TERM)) {	2781	for my $signal (qw(INT HUP TERM)) {
2252	Event->signal (	2782	Event->signal (
		2783	reentrant => 0,
2253	data => WF_AUTOCANCEL,	2784	data => WF_AUTOCANCEL,
2254	signal => $signal,	2785	signal => $signal,
		2786	prio => 0,
2255	cb => sub {	2787	cb => sub {
2256	cf::cleanup "SIG$signal";	2788	cf::cleanup "SIG$signal";
2257	},	2789	},
2258	);	2790	);
2259	}	2791	}
		2792	}
		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
2260	}	2830	}
2261		2831
2262	sub emergency_save() {	2832	sub emergency_save() {
2263	my $freeze_guard = cf::freeze_mainloop;	2833	my $freeze_guard = cf::freeze_mainloop;
2264		2834
…		…
2281	my $map = $cf::MAP{$path} or next;	2851	my $map = $cf::MAP{$path} or next;
2282	$map->valid or next;	2852	$map->valid or next;
2283	$map->save;	2853	$map->save;
2284	}	2854	}
2285	warn "end emergency map save\n";	2855	warn "end emergency map save\n";
		2856
		2857	warn "begin emergency database checkpoint\n";
		2858	BDB::db_env_txn_checkpoint $DB_ENV;
		2859	warn "end emergency database checkpoint\n";
2286	};	2860	};
2287		2861
2288	warn "leave emergency perl save\n";	2862	warn "leave emergency perl save\n";
2289	}	2863	}
2290		2864
		2865	sub post_cleanup {
		2866	my ($make_core) = @_;
		2867
		2868	warn Carp::longmess "post_cleanup backtrace"
		2869	if $make_core;
		2870	}
		2871
2291	sub reload() {	2872	sub do_reload_perl() {
2292	# can/must only be called in main	2873	# can/must only be called in main
2293	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
2294	warn "can only reload from main coroutine\n";	2875	warn "can only reload from main coroutine";
2295	return;	2876	return;
2296	}	2877	}
2297		2878
2298	warn "reloading...";	2879	warn "reloading...";
2299		2880
2300	warn "freezing server";	2881	warn "entering sync_job";
2301	my $guard = freeze_mainloop;	2882
		2883	cf::sync_job {
		2884	cf::write_runtime; # external watchdog should not bark
2302	cf::emergency_save;	2885	cf::emergency_save;
		2886	cf::write_runtime; # external watchdog should not bark
2303		2887
2304	warn "sync database to disk";	2888	warn "syncing database to disk";
2305	cf::db_sync;	2889	BDB::db_env_txn_checkpoint $DB_ENV;
2306	IO::AIO::flush;
2307		2890
2308	eval {
2309	# if anything goes wrong in here, we should simply crash as we already saved	2891	# if anything goes wrong in here, we should simply crash as we already saved
2310		2892
2311	warn "cancel all watchers";	2893	warn "cancelling all WF_AUTOCANCEL watchers";
2312	for (Event::all_watchers) {	2894	for (Event::all_watchers) {
2313	$_->cancel if $_->data & WF_AUTOCANCEL;	2895	$_->cancel if $_->data & WF_AUTOCANCEL;
2314	}	2896	}
2315		2897
		2898	warn "flushing outstanding aio requests";
		2899	for (;;) {
		2900	BDB::flush;
		2901	IO::AIO::flush;
		2902	Coro::cede;
		2903	last unless IO::AIO::nreqs || BDB::nreqs;
		2904	warn "iterate...";
		2905	}
		2906
		2907	++$RELOAD;
		2908
2316	warn "cancel all extension coros";	2909	warn "cancelling all extension coros";
2317	$_->cancel for values %EXT_CORO;	2910	$_->cancel for values %EXT_CORO;
2318	%EXT_CORO = ();	2911	%EXT_CORO = ();
2319		2912
2320	warn "remove commands";	2913	warn "removing commands";
2321	%COMMAND = ();	2914	%COMMAND = ();
2322		2915
2323	warn "remove ext commands";	2916	warn "removing ext/exti commands";
2324	%EXTCMD = ();	2917	%EXTCMD = ();
		2918	%EXTICMD = ();
2325		2919
2326	warn "unload/nuke all extensions";	2920	warn "unloading/nuking all extensions";
2327	for my $pkg (@EXTS) {	2921	for my $pkg (@EXTS) {
2328	warn "... unloading $pkg";	2922	warn "... unloading $pkg";
2329		2923
2330	if (my $cb = $pkg->can ("unload")) {	2924	if (my $cb = $pkg->can ("unload")) {
2331	eval {	2925	eval {
…		…
2336		2930
2337	warn "... nuking $pkg";	2931	warn "... nuking $pkg";
2338	Symbol::delete_package $pkg;	2932	Symbol::delete_package $pkg;
2339	}	2933	}
2340		2934
2341	warn "unload all perl modules loaded from $LIBDIR";	2935	warn "unloading all perl modules loaded from $LIBDIR";
2342	while (my ($k, $v) = each %INC) {	2936	while (my ($k, $v) = each %INC) {
2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2937	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344		2938
2345	warn "removing <$k>";	2939	warn "... unloading $k";
2346	delete $INC{$k};	2940	delete $INC{$k};
2347		2941
2348	$k =~ s/\.pm$//;	2942	$k =~ s/\.pm$//;
2349	$k =~ s/\//::/g;	2943	$k =~ s/\//::/g;
2350		2944
…		…
2353	}	2947	}
2354		2948
2355	Symbol::delete_package $k;	2949	Symbol::delete_package $k;
2356	}	2950	}
2357		2951
2358	warn "get rid of safe::, as good as possible";	2952	warn "getting rid of safe::, as good as possible";
2359	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361		2955
2362	warn "unload cf.pm \"a bit\"";	2956	warn "unloading cf.pm \"a bit\"";
2363	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2364		2959
2365	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2366	# and global variables created in xs	2961	# and global variables created in xs
2367	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2368		2963
		2964	warn "unload completed, starting to reload now";
		2965
2369	warn "reloading cf.pm";	2966	warn "reloading cf.pm";
2370	require cf;	2967	require cf;
2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2968	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372		2969
2373	warn "load config and database again";	2970	warn "loading config and database again";
2374	cf::cfg_load;	2971	cf::cfg_load;
2375	cf::db_load;
2376		2972
2377	warn "load extensions";	2973	warn "loading extensions";
2378	cf::load_extensions;	2974	cf::load_extensions;
2379		2975
2380	warn "reattach attachments to objects/players";	2976	warn "reattaching attachments to objects/players";
2381	_global_reattach;	2977	_global_reattach; # objects, sockets
2382	warn "reattach attachments to maps";	2978	warn "reattaching attachments to maps";
2383	reattach $_ for values %MAP;	2979	reattach $_ for values %MAP;
2384	};	2980	warn "reattaching attachments to players";
		2981	reattach $_ for values %PLAYER;
2385		2982
2386	if ($@) {	2983	warn "leaving sync_job";
		2984
		2985	1
		2986	} or do {
2387	warn $@;	2987	warn $@;
2388	warn "error while reloading, exiting.";	2988	warn "error while reloading, exiting.";
2389	exit 1;	2989	exit 1;
2390	}	2990	};
2391		2991
2392	warn "reloaded";	2992	warn "reloaded";
2393	};	2993	};
2394		2994
		2995	our $RELOAD_WATCHER; # used only during reload
		2996
		2997	sub reload_perl() {
		2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
		3000
		3001	$RELOAD_WATCHER ||= Event->timer (
		3002	reentrant => 0,
		3003	after => 0,
		3004	data => WF_AUTOCANCEL,
		3005	cb => sub {
		3006	do_reload_perl;
		3007	undef $RELOAD_WATCHER;
		3008	},
		3009	);
		3010	}
		3011
2395	register_command "reload" => sub {	3012	register_command "reload" => sub {
2396	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
2397		3014
2398	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
2399	$who->message ("start of reload.");
2400	reload;
2401	$who->message ("end of reload.");	3016	$who->message ("reloading server.");
		3017	async { reload_perl };
2402	}	3018	}
2403	};	3019	};
2404		3020
2405	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
2406		3022
		3023	my $bug_warning = 0;
		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2407	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2408	reentrant => 0,	3049	reentrant => 0,
		3050	parked => 1,
2409	prio => 0,	3051	prio => 0,
2410	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
2411	data => WF_AUTOCANCEL,	3053	data => WF_AUTOCANCEL,
2412	cb => sub {	3054	cb => sub {
		3055	if ($Coro::current != $Coro::main) {
		3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3057	unless ++$bug_warning > 10;
		3058	return;
		3059	}
		3060
2413	$NOW = Event::time;	3061	$NOW = $tick_start = Event::time;
2414		3062
2415	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
		3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3086	};
		3087
2416	$RUNTIME += $TICK;	3088	$RUNTIME += $TICK;
2417	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2418		3090
2419	$WAIT_FOR_TICK->broadcast;	3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2420	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3093	Coro::async_pool {
		3094	write_runtime
		3095	or warn "ERROR: unable to write runtime file: $!";
		3096	};
		3097	}
		3098
		3099	# my $AFTER = Event::time;
		3100	# warn $AFTER - $NOW;#d#
		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
2421		3110
2422	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2423	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2424		3113
2425	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2426	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2427	},	3123	},
2428	);	3124	);
2429		3125
		3126	{
		3127	BDB::max_poll_time $TICK * 0.1;
		3128	$BDB_POLL_WATCHER = Event->io (
		3129	reentrant => 0,
		3130	fd => BDB::poll_fileno,
		3131	poll => 'r',
		3132	prio => 0,
		3133	data => WF_AUTOCANCEL,
		3134	cb => \&BDB::poll_cb,
		3135	);
		3136	BDB::min_parallel 8;
		3137
		3138	BDB::set_sync_prepare {
		3139	my $status;
		3140	my $current = $Coro::current;
		3141	(
		3142	sub {
		3143	$status = $!;
		3144	$current->ready; undef $current;
		3145	},
		3146	sub {
		3147	Coro::schedule while defined $current;
		3148	$! = $status;
		3149	},
		3150	)
		3151	};
		3152
		3153	unless ($DB_ENV) {
		3154	$DB_ENV = BDB::db_env_create;
		3155
		3156	cf::sync_job {
		3157	eval {
		3158	BDB::db_env_open
		3159	$DB_ENV,
		3160	$BDBDIR,
		3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3163	0666;
		3164
		3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3166
		3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3168	$DB_ENV->set_lk_detect;
		3169	};
		3170
		3171	cf::cleanup "db_env_open(db): $@" if $@;
		3172	};
		3173	}
		3174	}
		3175
		3176	{
		3177	IO::AIO::min_parallel 8;
		3178
		3179	undef $Coro::AIO::WATCHER;
2430	IO::AIO::max_poll_time $TICK * 0.2;	3180	IO::AIO::max_poll_time $TICK * 0.1;
2431
2432	$AIO_POLL_WATCHER = Event->io (	3181	$AIO_POLL_WATCHER = Event->io (
2433	fd => IO::AIO::poll_fileno,	3182	reentrant => 0,
2434	poll => 'r',
2435	prio => 5,
2436	data => WF_AUTOCANCEL,
2437	cb => \&IO::AIO::poll_cb,
2438	);
2439
2440	$WRITE_RUNTIME_WATCHER = Event->timer (
2441	data => WF_AUTOCANCEL,	3183	data => WF_AUTOCANCEL,
2442	after => 0,	3184	fd => IO::AIO::poll_fileno,
2443	interval => 10,	3185	poll => 'r',
2444	cb => sub {	3186	prio => 6,
2445	(Coro::unblock_sub {	3187	cb => \&IO::AIO::poll_cb,
2446	write_runtime	3188	);
2447	or warn "ERROR: unable to write runtime file: $!";	3189	}
		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
2448	})->();	3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
2449	},	3226	}
2450	);	3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
2451		3231
2452	END { cf::emergency_save }	3232	END { cf::emergency_save }
2453		3233
2454	1	3234	1
2455		3235

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