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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.4 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
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->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 + 90 + 10;	412	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		413
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
359	and return;	415	my ($cb, @args) = @_;
360		416
361	aio_fsync $fh	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
362	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
363		421
		422	if (my $pid = fork) {
364	close $fh	423	close $fh2;
365	or return;
366		424
367	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
368	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
369		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
370	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
		576	}
		577
		578	=item cf::datalog type => key => value, ...
		579
		580	Log a datalog packet of the given type with the given key-value pairs.
		581
		582	=cut
		583
		584	sub datalog($@) {
		585	my ($type, %kv) = @_;
		586	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	587	}
372		588
373	=back	589	=back
374		590
375	=cut	591	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
384		600
385	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	603	Crossfire TRT).
388		604
389	=over 4	605	=over 4
390		606
391	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
392		608
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
556		772
557	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		777
562	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	779	my $pkg = shift @arg;
564		780
565	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
595	}	811	}
596		812
597	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
598	} else {	814	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	816	}
601		817
602	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
603	}	819	}
604		820
…		…
606	if (ref $_[0]) {	822	if (ref $_[0]) {
607	_object_attach @_;	823	_object_attach @_;
608	} else {	824	} else {
609	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
610	}	826	}
		827	_recalc_want;
611	};	828	};
612		829
613	# all those should be optimised	830	# all those should be optimised
614	sub cf::attachable::detach {	831	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
619	reattach ($obj);	836	reattach ($obj);
620	} else {	837	} else {
621	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
622	}	839	}
		840	_recalc_want;
623	};	841	};
624		842
625	sub cf::attachable::attached {	843	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
627		845
…		…
750	$filename, length $$rdata, scalar @$objs;	968	$filename, length $$rdata, scalar @$objs;
751		969
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	970	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	971	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	972	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	973	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	974	close $fh;
757		975
758	if (@$objs) {	976	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	977	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	978	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	979	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	980	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	981	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	982	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	983	aio_rename "$filename.pst~", "$filename.pst";
766	}	984	}
767	} else {	985	} else {
768	aio_unlink "$filename.pst";	986	aio_unlink "$filename.pst";
…		…
800	or return;	1018	or return;
801	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
802	}	1020	}
803		1021
804	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1023	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1024	return ($data, $av);
807	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
808		1032
809	#############################################################################	1033	#############################################################################
810	# command handling &c	1034	# command handling &c
811		1035
812	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1050	}
827		1051
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1053
830	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
831		1059
832	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
833	called.	1061	called.
834		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
835	=cut	1074	=cut
836		1075
837	sub register_extcmd {	1076	sub register_extcmd {
838	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
839		1078
840	$EXTCMD{$name} = $cb;	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
841	}	1086	}
842		1087
843	cf::player->attach (	1088	cf::player->attach (
844	on_command => sub {	1089	on_command => sub {
845	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1099	cf::override;
855	},	1100	},
856	on_extcmd => sub {	1101	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
858		1103
859	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1105
861	if (ref $msg) {	1106	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
870		1115
871	cf::override;	1116	cf::override;
872	},	1117	},
873	);	1118	);
874		1119
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
910	for my $ext (<$LIBDIR/*.ext>) {	1124	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1125	next unless -r $path;
912	eval {	1126
913	load_extension $ext;	1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
914	1	1184	}
915	} or warn "$ext not loaded: $@";	1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
916	}	1190	};
917	}	1191	}
918		1192
919	#############################################################################	1193	#############################################################################
920		1194
		1195	=back
		1196
921	=head2 CORE EXTENSIONS	1197	=head2 CORE EXTENSIONS
922		1198
923	Functions and methods that extend core crossfire objects.	1199	Functions and methods that extend core crossfire objects.
924		1200
925	=cut	1201	=cut
…		…
937	Returns the given player object, loading it if necessary (might block).	1213	Returns the given player object, loading it if necessary (might block).
938		1214
939	=cut	1215	=cut
940		1216
941	sub playerdir($) {	1217	sub playerdir($) {
942	cf::localdir	1218	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1220	}
948		1221
949	sub path($) {	1222	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1224
952	(playerdir $login) . "/$login.pl"	1225	(playerdir $login) . "/playerdata"
953	}	1226	}
954		1227
955	sub find_active($) {	1228	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1229	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1230	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1243	my $login = $_[0];
971		1244
972	my $guard = cf::lock_acquire "user_find:$login";	1245	my $guard = cf::lock_acquire "user_find:$login";
973		1246
974	$cf::PLAYER{$_[0]} || do {	1247	$cf::PLAYER{$_[0]} || do {
		1248	# rename old playerfiles to new ones
		1249	#TODO: remove when no longer required
		1250	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1251	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1252	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1253	aio_unlink +(playerdir $login) . "/$login.pl";
		1254
975	my $pl = load_pl path $login	1255	my $pl = load_pl path $login
976	or return;	1256	or return;
977	$cf::PLAYER{$login} = $pl	1257	$cf::PLAYER{$login} = $pl
978	}	1258	}
979	}	1259	}
…		…
1016		1296
1017	=cut	1297	=cut
1018		1298
1019	sub quit_character {	1299	sub quit_character {
1020	my ($pl) = @_;	1300	my ($pl) = @_;
		1301
		1302	my $name = $pl->ob->name;
1021		1303
1022	$pl->{deny_save} = 1;	1304	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1305	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1306
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1307	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1312	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1313	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1314	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1315	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1316	$pl->destroy;
		1317
		1318	my $prefix = qr<^~\Q$name\E/>;
		1319
		1320	# nuke player maps
		1321	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1322
1035	IO::AIO::aio_rmtree $temp;	1323	IO::AIO::aio_rmtree $temp;
		1324	}
		1325
		1326	=item $pl->kick
		1327
		1328	Kicks a player out of the game. This destroys the connection.
		1329
		1330	=cut
		1331
		1332	sub kick {
		1333	my ($pl, $kicker) = @_;
		1334
		1335	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1336	$pl->killer ("kicked");
		1337	$pl->ns->destroy;
1036	}	1338	}
1037		1339
1038	=item cf::player::list_logins	1340	=item cf::player::list_logins
1039		1341
1040	Returns am arrayref of all valid playernames in the system, can take a	1342	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1343	while and may block, so not sync_job-capable, ever.
1042		1344
1043	=cut	1345	=cut
1044		1346
1045	sub list_logins {	1347	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1348	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1349	or return [];
1048		1350
1049	my @logins;	1351	my @logins;
1050		1352
1051	for my $login (@$dirs) {	1353	for my $login (@$dirs) {
…		…
1068	=cut	1370	=cut
1069		1371
1070	sub maps($) {	1372	sub maps($) {
1071	my ($pl) = @_;	1373	my ($pl) = @_;
1072		1374
		1375	$pl = ref $pl ? $pl->ob->name : $pl;
		1376
1073	my $files = aio_readdir playerdir $pl	1377	my $files = aio_readdir playerdir $pl
1074	or return;	1378	or return;
1075		1379
1076	my @paths;	1380	my @paths;
1077		1381
1078	for (@$files) {	1382	for (@$files) {
1079	utf8::decode $_;	1383	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1384	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1385	next unless /^$PATH_SEP/o;
1082		1386
1083	s/\.map$//;	1387	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1388	}
1086		1389
1087	\@paths	1390	\@paths
1088	}	1391	}
1089		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1443	=item $player->ext_reply ($msgid, %msg)
1091		1444
1092	Sends an ext reply to the player.	1445	Sends an ext reply to the player.
1093		1446
1094	=cut	1447	=cut
1095		1448
1096	sub ext_reply($$$%) {	1449	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1450	my ($self, $id, %msg) = @_;
1098		1451
1099	$msg{msgid} = $id;	1452	$msg{msgid} = $id;
1100		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1454	}
1103		1455
1104	package cf;	1456	=item $player->ext_event ($type, %msg)
		1457
		1458	Sends an ext event to the client.
		1459
		1460	=cut
		1461
		1462	sub ext_event($$%) {
		1463	my ($self, $type, %msg) = @_;
		1464
		1465	$self->ns->ext_event ($type, %msg);
		1466	}
		1467
		1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
		1483	my ($path) = @_;
		1484
		1485	my ($match, $specificity);
		1486
		1487	for my $region (list) {
		1488	if ($region->match && $path =~ $region->match) {
		1489	($match, $specificity) = ($region, $region->specificity)
		1490	if $region->specificity > $specificity;
		1491	}
		1492	}
		1493
		1494	$match
		1495	}
1105		1496
1106	=back	1497	=back
1107
1108		1498
1109	=head3 cf::map	1499	=head3 cf::map
1110		1500
1111	=over 4	1501	=over 4
1112		1502
…		…
1167	my ($self, $merge) = @_;	1557	my ($self, $merge) = @_;
1168		1558
1169	# we have to keep some variables in memory intact	1559	# we have to keep some variables in memory intact
1170	local $self->{path};	1560	local $self->{path};
1171	local $self->{load_path};	1561	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1562
1175	$self->SUPER::thawer_merge ($merge);	1563	$self->SUPER::thawer_merge ($merge);
1176	}	1564	}
1177		1565
1178	sub normalise {	1566	sub normalise {
1179	my ($path, $base) = @_;	1567	my ($path, $base) = @_;
		1568
		1569	$path = "$path"; # make sure its a string
		1570
		1571	$path =~ s/\.map$//;
1180		1572
1181	# map plan:	1573	# map plan:
1182	#	1574	#
1183	# /! non-realised random map exit (special hack!)	1575	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1576	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1613	$self->init; # pass $1 etc.
1222	return $self;	1614	return $self;
1223	}	1615	}
1224	}	1616	}
1225		1617
1226	Carp::carp "unable to resolve path '$path'.";	1618	Carp::carp "unable to resolve path '$path' (base '$base').";
1227	()	1619	()
1228	}	1620	}
1229		1621
1230	sub init {	1622	sub init {
1231	my ($self) = @_;	1623	my ($self) = @_;
…		…
1246		1638
1247	# the original (read-only) location	1639	# the original (read-only) location
1248	sub load_path {	1640	sub load_path {
1249	my ($self) = @_;	1641	my ($self) = @_;
1250		1642
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1643	"$MAPDIR/$self->{path}.map"
1252	}	1644	}
1253		1645
1254	# the temporary/swap location	1646	# the temporary/swap location
1255	sub save_path {	1647	sub save_path {
1256	my ($self) = @_;	1648	my ($self) = @_;
1257		1649
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1651	"$TMPDIR/$path.map"
1260	}	1652	}
1261		1653
1262	# the unique path, undef == no special unique path	1654	# the unique path, undef == no special unique path
1263	sub uniq_path {	1655	sub uniq_path {
1264	my ($self) = @_;	1656	my ($self) = @_;
1265		1657
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1659	"$UNIQUEDIR/$path"
1268	}	1660	}
1269		1661
1270	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1271	# all maps in C++...	1663	# all maps in C++...
1272	sub change_all_map_light {	1664	sub change_all_map_light {
…		…
1274		1666
1275	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1276	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1277	}	1669	}
1278		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
1279	sub unlink_save {	1679	sub unlink_save {
1280	my ($self) = @_;	1680	my ($self) = @_;
1281		1681
1282	utf8::encode (my $save = $self->save_path);	1682	utf8::encode (my $save = $self->save_path);
1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1286		1686
1287	sub load_header_from($) {	1687	sub load_header_from($) {
1288	my ($self, $path) = @_;	1688	my ($self, $path) = @_;
1289		1689
1290	utf8::encode $path;	1690	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1691	#aio_open $path, O_RDONLY, 0
1292	or return;	1692	# or return;
1293		1693
1294	$self->_load_header ($path)	1694	$self->_load_header ($path)
1295	or return;	1695	or return;
1296		1696
1297	$self->{load_path} = $path;	1697	$self->{load_path} = $path;
…		…
1339	$self->load_header_orig	1739	$self->load_header_orig
1340	or return;	1740	or return;
1341	$self->prepare_orig;	1741	$self->prepare_orig;
1342	}	1742	}
1343		1743
		1744	$self->{deny_reset} = 1
		1745	if $self->no_reset;
		1746
		1747	$self->default_region (cf::region::find_by_path $self->{path})
		1748	unless $self->default_region;
		1749
1344	1	1750	1
1345	}	1751	}
1346		1752
1347	sub find;	1753	sub find;
1348	sub find {	1754	sub find {
…		…
1360	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1361		1767
1362	$map->load_header	1768	$map->load_header
1363	or return;	1769	or return;
1364		1770
1365	if ($map->should_reset) {	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1772	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1773	#$cf::WAIT_FOR_TICK->wait;
1368	$map->reset;	1774	$map->reset;
1369	undef $guard;	1775	undef $guard;
1370	$map = find $path	1776	return find $path;
1371	or return;
1372	}	1777	}
1373		1778
1374	$cf::MAP{$path} = $map	1779	$cf::MAP{$path} = $map
1375	}	1780	}
1376	}	1781	}
…		…
1379	sub post_load { }	1784	sub post_load { }
1380		1785
1381	sub load {	1786	sub load {
1382	my ($self) = @_;	1787	my ($self) = @_;
1383		1788
		1789	local $self->{deny_reset} = 1; # loading can take a long time
		1790
1384	my $path = $self->{path};	1791	my $path = $self->{path};
		1792
		1793	{
1385	my $guard = cf::lock_acquire "map_load:$path";	1794	my $guard = cf::lock_acquire "map_load:$path";
1386		1795
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1796	return if $self->in_memory != cf::MAP_SWAPPED;
1388		1797
1389	$self->in_memory (cf::MAP_LOADING);	1798	$self->in_memory (cf::MAP_LOADING);
1390		1799
1391	$self->alloc;	1800	$self->alloc;
1392		1801
1393	$self->pre_load;	1802	$self->pre_load;
1394
1395	$self->_load_objects ($self->{load_path}, 1)
1396	or return;
1397
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1399	if delete $self->{load_original};
1400
1401	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {
1404	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);
1406	}
1407	}
1408
1409	Coro::cede;
1410
1411	# now do the right thing for maps
1412	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;	1803	Coro::cede;
1419	$self->set_darkness_map;	1804
		1805	$self->_load_objects ($self->{load_path}, 1)
		1806	or return;
		1807
		1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1809	if delete $self->{load_original};
		1810
		1811	if (my $uniq = $self->uniq_path) {
		1812	utf8::encode $uniq;
		1813	if (aio_open $uniq, O_RDONLY, 0) {
		1814	$self->clear_unique_items;
		1815	$self->_load_objects ($uniq, 0);
		1816	}
		1817	}
		1818
		1819	Coro::cede;
		1820	# now do the right thing for maps
		1821	$self->link_multipart_objects;
1420	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	1823	unless $self->difficulty;
1422	Coro::cede;	1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1423	$self->activate;	1833	$self->activate;
		1834	}
		1835
		1836	$self->in_memory (cf::MAP_IN_MEMORY);
1424	}	1837	}
1425		1838
1426	$self->post_load;	1839	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	1840	}
1430		1841
1431	sub customise_for {	1842	sub customise_for {
1432	my ($self, $ob) = @_;	1843	my ($self, $ob) = @_;
1433		1844
1434	return find "~" . $ob->name . "/" . $self->{path}	1845	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
1436		1850
1437	$self	1851	$self
1438	}	1852	}
1439		1853
1440	# find and load all maps in the 3x3 area around a map	1854	# find and load all maps in the 3x3 area around a map
…		…
1496	delete $MAP_PREFETCH{$path};	1910	delete $MAP_PREFETCH{$path};
1497	}	1911	}
1498	}	1912	}
1499	undef $MAP_PREFETCHER;	1913	undef $MAP_PREFETCHER;
1500	};	1914	};
		1915	$MAP_PREFETCHER->prio (6);
1501		1916
1502	()	1917	()
1503	}	1918	}
1504		1919
1505	sub save {	1920	sub save {
…		…
1550		1965
1551	sub reset_at {	1966	sub reset_at {
1552	my ($self) = @_;	1967	my ($self) = @_;
1553		1968
1554	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1555	return 1e99 if $self->isa ("ext::map_per_player");#d#
1556	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1557		1971
1558	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1559	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1560		1974
…		…
1571	my ($self) = @_;	1985	my ($self) = @_;
1572		1986
1573	my $lock = cf::lock_acquire "map_data:$self->{path}";	1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		1988
1575	return if $self->players;	1989	return if $self->players;
1576	return if $self->isa ("ext::map_per_player");#d#
1577		1990
1578	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
		1992
		1993	$self->in_memory (cf::MAP_SWAPPED);
		1994
		1995	# need to save uniques path
		1996	unless ($self->{deny_save}) {
		1997	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1998
		1999	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2000	if $uniq;
		2001	}
1579		2002
1580	delete $cf::MAP{$self->path};	2003	delete $cf::MAP{$self->path};
1581		2004
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	$self->clear;	2005	$self->clear;
1584		2006
1585	$_->clear_links_to ($self) for values %cf::MAP;	2007	$_->clear_links_to ($self) for values %cf::MAP;
1586		2008
1587	$self->unlink_save;	2009	$self->unlink_save;
…		…
1606	$cf::MAP{$self->path} = $self;	2028	$cf::MAP{$self->path} = $self;
1607		2029
1608	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1609	}	2031	}
1610		2032
		2033	=item $maps = cf::map::tmp_maps
		2034
		2035	Returns an arrayref with all map paths of currently instantiated and saved
		2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
		2041	[
		2042	map {
		2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
		2049	}
		2050
		2051	=item $maps = cf::map::random_maps
		2052
		2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
		2055
		2056	=cut
		2057
		2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
1611	=item cf::map::unique_maps	2069	=item cf::map::unique_maps
1612		2070
1613	Returns an arrayref of paths of all shared maps that have	2071	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2072	instantiated unique items. May block.
1615		2073
1616	=cut	2074	=cut
1617		2075
1618	sub unique_maps() {	2076	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2077	[
1620	or return;	2078	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2079	utf8::decode $_;
1626	next if /\.pst$/;
1627	next unless /^$PATH_SEP/o;
1628
1629	s/\.map$//;	2080	/\.map$/
1630	push @paths, $_;	2081	? normalise $_
		2082	: ()
		2083	} @{ aio_readdir $UNIQUEDIR or [] }
1631	}	2084	]
1632
1633	\@paths
1634	}	2085	}
1635		2086
1636	package cf;	2087	package cf;
1637		2088
1638	=back	2089	=back
…		…
1684		2135
1685	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1686		2137
1687	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1688	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1689	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1690	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1691	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1692	}	2157	}
1693	}	2158	}
1694		2159
1695	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1696		2161
…		…
1729	=cut	2194	=cut
1730		2195
1731	sub link_map {	2196	sub link_map {
1732	unless ($LINK_MAP) {	2197	unless ($LINK_MAP) {
1733	$LINK_MAP = cf::map::find "{link}"	2198	$LINK_MAP = cf::map::find "{link}"
1734	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2199	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735	$LINK_MAP->load;	2200	$LINK_MAP->load;
1736	}	2201	}
1737		2202
1738	$LINK_MAP	2203	$LINK_MAP
1739	}	2204	}
…		…
1744	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1745		2210
1746	return if UNIVERSAL::isa $self->map, "ext::map_link";	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1747		2212
1748	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1750		2215
1751	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1752	}	2217	}
1753		2218
1754	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1755	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1756		2223
1757	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1758		2225
1759	unless ($map) {	2226	unless ($map) {
1760	# restore original map position	2227	# restore original map position
…		…
1778	$map->load;	2245	$map->load;
1779	$map->load_diag;	2246	$map->load_diag;
1780		2247
1781	return unless $self->contr->active;	2248	return unless $self->contr->active;
1782	$self->activate_recursive;	2249	$self->activate_recursive;
		2250
		2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1783	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1784	}	2253	}
1785		2254
1786	cf::player->attach (
1787	on_logout => sub {
1788	my ($pl) = @_;
1789
1790	# abort map switching before logout
1791	if ($pl->ob->{_link_pos}) {
1792	cf::sync_job {
1793	$pl->ob->leave_link
1794	};
1795	}
1796	},
1797	on_login => sub {
1798	my ($pl) = @_;
1799
1800	# try to abort aborted map switching on player login :)
1801	# should happen only on crashes
1802	if ($pl->ob->{_link_pos}) {
1803	$pl->ob->enter_link;
1804	(async {
1805	# we need this sleep as the login has a concurrent enter_exit running
1806	# and this sleep increases chances of the player not ending up in scorn
1807	$pl->ob->reply (undef,
1808	"There was an internal problem at your last logout, "
1809	. "the server will try to bring you to your intended destination in a second.",
1810	cf::NDI_RED);
1811	Coro::Timer::sleep 1;
1812	$pl->ob->leave_link;
1813	})->prio (2);
1814	}
1815	},
1816	);
1817
1818	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1819		2256
		2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
		2261
1820	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1821		2265
1822	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1823	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1824		2271
1825	$self->enter_link;	2272	$self->enter_link;
1826		2273
1827	(async {	2274	(async {
		2275	my $map = eval {
1828	my $map = cf::map::find $path;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1829	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
1830		2280	$map = $check->($map) if $check && $map;
1831	# warn "entering ", $map->path, " at ($x, $y)\n"	2281	} else {
1832	# if $map;
1833
1834	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
1835		2284
		2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
		2291	}
		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1836	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1837	})->prio (1);	2297	})->prio (1);
1838	}	2298	}
1839		2299
1840	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1841		2301
…		…
1870	# that depends on the exit object	2330	# that depends on the exit object
1871		2331
1872	my $rmp = parse_random_map_params $exit->msg;	2332	my $rmp = parse_random_map_params $exit->msg;
1873		2333
1874	if ($exit->map) {	2334	if ($exit->map) {
1875	$rmp->{region} = $exit->map->region_name;	2335	$rmp->{region} = $exit->region->name;
1876	$rmp->{origin_map} = $exit->map->path;	2336	$rmp->{origin_map} = $exit->map->path;
1877	$rmp->{origin_x} = $exit->x;	2337	$rmp->{origin_x} = $exit->x;
1878	$rmp->{origin_y} = $exit->y;	2338	$rmp->{origin_y} = $exit->y;
1879	}	2339	}
1880		2340
1881	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1882		2342
1883	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1884	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
1885	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2345	my $meta = "$RANDOMDIR/$md5.meta";
1886		2346
1887	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1888	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
1889	undef $fh;	2349	undef $fh;
1890	aio_rename "$meta~", $meta;	2350	aio_rename "$meta~", $meta;
…		…
1897	sub cf::object::player::enter_exit {	2357	sub cf::object::player::enter_exit {
1898	my ($self, $exit) = @_;	2358	my ($self, $exit) = @_;
1899		2359
1900	return unless $self->type == cf::PLAYER;	2360	return unless $self->type == cf::PLAYER;
1901		2361
		2362	if ($exit->slaying eq "/!") {
		2363	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2364	# the problem is that $exit might not survive long enough
		2365	# so it needs to be done right now, right here
		2366	cf::sync_job { prepare_random_map $exit };
		2367	}
		2368
		2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2370	my $hp = $exit->stats->hp;
		2371	my $sp = $exit->stats->sp;
		2372
1902	$self->enter_link;	2373	$self->enter_link;
		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
1903		2378
1904	(async {	2379	(async {
1905	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
1906	unless (eval {	2381	unless (eval {
1907	prepare_random_map $exit	2382	$self->goto ($slaying, $hp, $sp);
1908	if $exit->slaying eq "/!";
1909
1910	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1911	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1912		2383
1913	1;	2384	1;
1914	}) {	2385	}) {
1915	$self->message ("Something went wrong deep within the crossfire server. "	2386	$self->message ("Something went wrong deep within the crossfire server. "
1916	. "I'll try to bring you back to the map you were before. "	2387	. "I'll try to bring you back to the map you were before. "
1917	. "Please report this to the dungeon master!",	2388	. "Please report this to the dungeon master!",
1918	cf::NDI_UNIQUE | cf::NDI_RED);	2389	cf::NDI_UNIQUE | cf::NDI_RED);
1919		2390
1920	warn "ERROR in enter_exit: $@";	2391	warn "ERROR in enter_exit: $@";
1921	$self->leave_link;	2392	$self->leave_link;
1922	}	2393	}
1923	})->prio (1);	2394	})->prio (1);
…		…
1936		2407
1937	sub cf::client::send_drawinfo {	2408	sub cf::client::send_drawinfo {
1938	my ($self, $text, $flags) = @_;	2409	my ($self, $text, $flags) = @_;
1939		2410
1940	utf8::encode $text;	2411	utf8::encode $text;
1941	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1942	}	2413	}
1943		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
		2455	=item $client->ext_event ($type, %msg)
		2456
		2457	Sends an ext event to the client.
		2458
		2459	=cut
		2460
		2461	sub cf::client::ext_event($$%) {
		2462	my ($self, $type, %msg) = @_;
		2463
		2464	$msg{msgtype} = "event_$type";
		2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2466	}
1944		2467
1945	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
1946		2469
1947	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
1948	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1949	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1950		2473
1951	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
1952	reliable at some point in the future.	2475	become reliable at some point in the future.
1953		2476
1954	=cut	2477	=cut
1955		2478
1956	sub cf::client::query {	2479	sub cf::client::query {
1957	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
1965	utf8::encode $text;	2488	utf8::encode $text;
1966	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1967		2490
1968	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
1969	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
1970	}	2495	}
1971		2496
1972	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
1973	on_reply => sub {	2503	on_reply => sub {
1974	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
1975		2505
1976	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
1977	# get handled first	2507	# get handled first
1978	my $queue = delete $ns->{query_queue}	2508	my $queue = delete $ns->{query_queue}
1979	or return; # be conservative, not sure how that can happen, but we saw a crash here	2509	or return; # be conservative, not sure how that can happen, but we saw a crash here
1980		2510
1981	(shift @$queue)->[1]->($msg);	2511	(shift @$queue)->[1]->($msg);
		2512	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982		2513
1983	push @{ $ns->{query_queue} }, @$queue;	2514	push @{ $ns->{query_queue} }, @$queue;
1984		2515
1985	if (@{ $ns->{query_queue} } == @$queue) {	2516	if (@{ $ns->{query_queue} } == @$queue) {
1986	if (@$queue) {	2517	if (@$queue) {
…		…
1988	} else {	2519	} else {
1989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1990	}	2521	}
1991	}	2522	}
1992	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
1993	);	2542	);
1994		2543
1995	=item $client->async (\&cb)	2544	=item $client->async (\&cb)
1996		2545
1997	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
…		…
2044		2593
2045	# here we export the classes and methods available to script code	2594	# here we export the classes and methods available to script code
2046		2595
2047	=pod	2596	=pod
2048		2597
2049	The following fucntions and emthods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
2050		2599
2051	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
2052	cf::object::player player	2604	cf::object::player
2053	cf::player peaceful	2605	player
2054	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
2055		2612
2056	=cut	2613	=cut
2057		2614
2058	for (	2615	for (
2059	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
2060	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
2061	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
2062	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
2063	) {	2621	) {
2064	no strict 'refs';	2622	no strict 'refs';
…		…
2135	=back	2693	=back
2136		2694
2137	=cut	2695	=cut
2138		2696
2139	#############################################################################	2697	#############################################################################
		2698	# the server's init and main functions
2140		2699
2141	=head2 EXTENSION DATABASE SUPPORT	2700	sub load_facedata($) {
		2701	my ($path) = @_;
2142		2702
2143	Crossfire maintains a very simple database for extension use. It can	2703	warn "loading facedata from $path\n";
2144	currently store anything that can be serialised using Storable, which
2145	excludes objects.
2146		2704
2147	The parameter C<$family> should best start with the name of the extension	2705	my $facedata;
2148	using it, it should be unique.	2706	0 < aio_load $path, $facedata
		2707	or die "$path: $!";
2149		2708
2150	=over 4	2709	$facedata = Coro::Storable::thaw $facedata;
2151		2710
2152	=item $hashref = cf::db_get $family	2711	$facedata->{version} == 2
		2712	or cf::cleanup "$path: version mismatch, cannot proceed.";
2153		2713
2154	Return a hashref for use by the extension C<$family>, which can be
2155	modified. After modifications, you have to call C<cf::db_dirty> or
2156	C<cf::db_sync>.
2157
2158	=item $value = cf::db_get $family => $key
2159
2160	Returns a single value from the database
2161
2162	=item cf::db_put $family => $hashref
2163
2164	Stores the given family hashref into the database. Updates are delayed, if
2165	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2166
2167	=item cf::db_put $family => $key => $value
2168
2169	Stores the given C<$value> in the family hash. Updates are delayed, if you
2170	want the data to be synced to disk immediately, use C<cf::db_sync>.
2171
2172	=item cf::db_dirty
2173
2174	Marks the database as dirty, to be updated at a later time.
2175
2176	=item cf::db_sync
2177
2178	Immediately write the database to disk I<if it is dirty>.
2179
2180	=cut
2181
2182	our $DB;
2183
2184	{
2185	my $path = cf::localdir . "/database.pst";
2186
2187	sub db_load() {
2188	$DB = stat $path ? Storable::retrieve $path : { };
2189	}	2714	{
		2715	my $faces = $facedata->{faceinfo};
2190		2716
2191	my $pid;	2717	while (my ($face, $info) = each %$faces) {
2192		2718	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2193	sub db_save() {	2719	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2194	waitpid $pid, 0 if $pid;	2720	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2195	if (0 == ($pid = fork)) {	2721	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2196	$DB->{_meta}{version} = 1;	2722	Coro::cede;
2197	Storable::nstore $DB, "$path~";
2198	rename "$path~", $path;
2199	cf::_exit 0 if defined $pid;
2200	}
2201	}
2202
2203	my $dirty;
2204
2205	sub db_sync() {
2206	db_save if $dirty;
2207	undef $dirty;
2208	}
2209
2210	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2211	db_sync;
2212	});
2213
2214	sub db_dirty() {
2215	$dirty = 1;
2216	$idle->start;
2217	}
2218
2219	sub db_get($;$) {
2220	@_ >= 2
2221	? $DB->{$_[0]}{$_[1]}
2222	: ($DB->{$_[0]} ||= { })
2223	}
2224
2225	sub db_put($$;$) {
2226	if (@_ >= 3) {
2227	$DB->{$_[0]}{$_[1]} = $_[2];
2228	} else {
2229	$DB->{$_[0]} = $_[1];
2230	}
2231	db_dirty;
2232	}
2233
2234	cf::global->attach (
2235	prio => 10000,
2236	on_cleanup => sub {
2237	db_sync;
2238	},	2723	}
2239	);
2240	}
2241		2724
2242	#############################################################################	2725	while (my ($face, $info) = each %$faces) {
2243	# the server's main()	2726	next unless $info->{smooth};
		2727	my $idx = cf::face::find $face
		2728	or next;
		2729	if (my $smooth = cf::face::find $info->{smooth}) {
		2730	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2731	} else {
		2732	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2733	}
		2734	Coro::cede;
		2735	}
		2736	}
		2737
		2738	{
		2739	my $anims = $facedata->{animinfo};
		2740
		2741	while (my ($anim, $info) = each %$anims) {
		2742	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2743	Coro::cede;
		2744	}
		2745
		2746	cf::anim::invalidate_all; # d'oh
		2747	}
		2748
		2749	1
		2750	}
		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
		2777	sub reload_resources {
		2778	warn "reloading resource files...\n";
		2779
		2780	reload_regions;
		2781	reload_facedata;
		2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
		2787	}
		2788
		2789	sub init {
		2790	reload_resources;
		2791	}
2244		2792
2245	sub cfg_load {	2793	sub cfg_load {
2246	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
2247	or return;	2795	or return;
2248		2796
2249	local $/;	2797	local $/;
2250	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
2251		2799
…		…
2271	Event::one_event;	2819	Event::one_event;
2272	})->prio (Coro::PRIO_MAX);	2820	})->prio (Coro::PRIO_MAX);
2273	};	2821	};
2274		2822
2275	cfg_load;	2823	cfg_load;
2276	db_load;	2824	db_init;
2277	load_extensions;	2825	load_extensions;
2278		2826
2279	$TICK_WATCHER->start;	2827	$TICK_WATCHER->start;
2280	Event::loop;	2828	Event::loop;
2281	}	2829	}
…		…
2285		2833
2286	# install some emergency cleanup handlers	2834	# install some emergency cleanup handlers
2287	BEGIN {	2835	BEGIN {
2288	for my $signal (qw(INT HUP TERM)) {	2836	for my $signal (qw(INT HUP TERM)) {
2289	Event->signal (	2837	Event->signal (
		2838	reentrant => 0,
2290	data => WF_AUTOCANCEL,	2839	data => WF_AUTOCANCEL,
2291	signal => $signal,	2840	signal => $signal,
		2841	prio => 0,
2292	cb => sub {	2842	cb => sub {
2293	cf::cleanup "SIG$signal";	2843	cf::cleanup "SIG$signal";
2294	},	2844	},
2295	);	2845	);
2296	}	2846	}
		2847	}
		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
2297	}	2885	}
2298		2886
2299	sub emergency_save() {	2887	sub emergency_save() {
2300	my $freeze_guard = cf::freeze_mainloop;	2888	my $freeze_guard = cf::freeze_mainloop;
2301		2889
…		…
2318	my $map = $cf::MAP{$path} or next;	2906	my $map = $cf::MAP{$path} or next;
2319	$map->valid or next;	2907	$map->valid or next;
2320	$map->save;	2908	$map->save;
2321	}	2909	}
2322	warn "end emergency map save\n";	2910	warn "end emergency map save\n";
		2911
		2912	warn "begin emergency database checkpoint\n";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914	warn "end emergency database checkpoint\n";
2323	};	2915	};
2324		2916
2325	warn "leave emergency perl save\n";	2917	warn "leave emergency perl save\n";
2326	}	2918	}
2327		2919
		2920	sub post_cleanup {
		2921	my ($make_core) = @_;
		2922
		2923	warn Carp::longmess "post_cleanup backtrace"
		2924	if $make_core;
		2925	}
		2926
2328	sub reload() {	2927	sub do_reload_perl() {
2329	# can/must only be called in main	2928	# can/must only be called in main
2330	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
2331	warn "can only reload from main coroutine";	2930	warn "can only reload from main coroutine";
2332	return;	2931	return;
2333	}	2932	}
2334		2933
2335	warn "reloading...";	2934	warn "reloading...";
2336		2935
2337	warn "cancelling server ticker";	2936	warn "entering sync_job";
2338	$TICK_WATCHER->cancel;
2339		2937
		2938	cf::sync_job {
		2939	cf::write_runtime; # external watchdog should not bark
2340	cf::emergency_save;	2940	cf::emergency_save;
		2941	cf::write_runtime; # external watchdog should not bark
2341		2942
2342	eval {	2943	warn "syncing database to disk";
		2944	BDB::db_env_txn_checkpoint $DB_ENV;
		2945
2343	# if anything goes wrong in here, we should simply crash as we already saved	2946	# if anything goes wrong in here, we should simply crash as we already saved
2344
2345	warn "syncing database to disk";
2346	cf::db_sync;
2347		2947
2348	warn "cancelling all WF_AUTOCANCEL watchers";	2948	warn "cancelling all WF_AUTOCANCEL watchers";
2349	for (Event::all_watchers) {	2949	for (Event::all_watchers) {
2350	$_->cancel if $_->data & WF_AUTOCANCEL;	2950	$_->cancel if $_->data & WF_AUTOCANCEL;
2351	}	2951	}
2352		2952
2353	warn "flushing outstanding aio requests";	2953	warn "flushing outstanding aio requests";
2354	for (;;) {	2954	for (;;) {
		2955	BDB::flush;
2355	IO::AIO::flush;	2956	IO::AIO::flush;
2356	Coro::cede;	2957	Coro::cede;
2357	last unless IO::AIO::nreqs;	2958	last unless IO::AIO::nreqs || BDB::nreqs;
2358	warn "iterate...";	2959	warn "iterate...";
2359	}	2960	}
		2961
		2962	++$RELOAD;
2360		2963
2361	warn "cancelling all extension coros";	2964	warn "cancelling all extension coros";
2362	$_->cancel for values %EXT_CORO;	2965	$_->cancel for values %EXT_CORO;
2363	%EXT_CORO = ();	2966	%EXT_CORO = ();
2364		2967
2365	warn "removing commands";	2968	warn "removing commands";
2366	%COMMAND = ();	2969	%COMMAND = ();
2367		2970
2368	warn "removing ext commands";	2971	warn "removing ext/exti commands";
2369	%EXTCMD = ();	2972	%EXTCMD = ();
		2973	%EXTICMD = ();
2370		2974
2371	warn "unloading/nuking all extensions";	2975	warn "unloading/nuking all extensions";
2372	for my $pkg (@EXTS) {	2976	for my $pkg (@EXTS) {
2373	warn "... unloading $pkg";	2977	warn "... unloading $pkg";
2374		2978
…		…
2404	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
2405	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2406		3010
2407	warn "unloading cf.pm \"a bit\"";	3011	warn "unloading cf.pm \"a bit\"";
2408	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
2409		3014
2410	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
2411	# and global variables created in xs	3016	# and global variables created in xs
2412	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
2413		3018
…		…
2417	require cf;	3022	require cf;
2418	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3023	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2419		3024
2420	warn "loading config and database again";	3025	warn "loading config and database again";
2421	cf::cfg_load;	3026	cf::cfg_load;
2422	cf::db_load;
2423		3027
2424	warn "loading extensions";	3028	warn "loading extensions";
2425	cf::load_extensions;	3029	cf::load_extensions;
2426		3030
2427	warn "reattaching attachments to objects/players";	3031	warn "reattaching attachments to objects/players";
2428	_global_reattach;	3032	_global_reattach; # objects, sockets
2429	warn "reattaching attachments to maps";	3033	warn "reattaching attachments to maps";
2430	reattach $_ for values %MAP;	3034	reattach $_ for values %MAP;
		3035	warn "reattaching attachments to players";
		3036	reattach $_ for values %PLAYER;
2431		3037
2432	warn "restarting server ticker";	3038	warn "leaving sync_job";
2433		3039
2434	$TICK_WATCHER->start;	3040	1
2435	};	3041	} or do {
2436
2437	if ($@) {
2438	warn $@;	3042	warn $@;
2439	warn "error while reloading, exiting.";	3043	warn "error while reloading, exiting.";
2440	exit 1;	3044	exit 1;
2441	}	3045	};
2442		3046
2443	warn "reloaded";	3047	warn "reloaded";
2444	};	3048	};
2445		3049
2446	our $RELOAD_WATCHER; # used only during reload	3050	our $RELOAD_WATCHER; # used only during reload
2447		3051
		3052	sub reload_perl() {
		3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
		3055
		3056	$RELOAD_WATCHER ||= Event->timer (
		3057	reentrant => 0,
		3058	after => 0,
		3059	data => WF_AUTOCANCEL,
		3060	cb => sub {
		3061	do_reload_perl;
		3062	undef $RELOAD_WATCHER;
		3063	},
		3064	);
		3065	}
		3066
2448	register_command "reload" => sub {	3067	register_command "reload" => sub {
2449	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
2450		3069
2451	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
2452	$who->message ("reloading server.");	3071	$who->message ("reloading server.");
2453		3072	async { reload_perl };
2454	# doing reload synchronously and two reloads happen back-to-back,
2455	# coro crashes during coro_state_free->destroy here.
2456
2457	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2458	reload;
2459	undef $RELOAD_WATCHER;
2460	});
2461	}	3073	}
2462	};	3074	};
2463		3075
2464	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
2465		3077
2466	my $bug_warning = 0;	3078	my $bug_warning = 0;
2467		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2468	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2469	reentrant => 0,	3104	reentrant => 0,
2470	parked => 1,	3105	parked => 1,
2471	prio => 0,	3106	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
…		…
2476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2477	unless ++$bug_warning > 10;	3112	unless ++$bug_warning > 10;
2478	return;	3113	return;
2479	}	3114	}
2480		3115
2481	$NOW = Event::time;	3116	$NOW = $tick_start = Event::time;
2482		3117
2483	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
		3142
2484	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2485	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2486		3145
2487	$WAIT_FOR_TICK->broadcast;	3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2488	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3148	Coro::async_pool {
		3149	write_runtime
		3150	or warn "ERROR: unable to write runtime file: $!";
		3151	};
		3152	}
		3153
		3154	# my $AFTER = Event::time;
		3155	# warn $AFTER - $NOW;#d#
		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
2489		3165
2490	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2491	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2492		3168
2493	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2494	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2495	},	3178	},
2496	);	3179	);
2497		3180
		3181	{
		3182	BDB::max_poll_time $TICK * 0.1;
		3183	$BDB_POLL_WATCHER = Event->io (
		3184	reentrant => 0,
		3185	fd => BDB::poll_fileno,
		3186	poll => 'r',
		3187	prio => 0,
		3188	data => WF_AUTOCANCEL,
		3189	cb => \&BDB::poll_cb,
		3190	);
		3191	BDB::min_parallel 8;
		3192
		3193	BDB::set_sync_prepare {
		3194	my $status;
		3195	my $current = $Coro::current;
		3196	(
		3197	sub {
		3198	$status = $!;
		3199	$current->ready; undef $current;
		3200	},
		3201	sub {
		3202	Coro::schedule while defined $current;
		3203	$! = $status;
		3204	},
		3205	)
		3206	};
		3207
		3208	unless ($DB_ENV) {
		3209	$DB_ENV = BDB::db_env_create;
		3210
		3211	cf::sync_job {
		3212	eval {
		3213	BDB::db_env_open
		3214	$DB_ENV,
		3215	$BDBDIR,
		3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3218	0666;
		3219
		3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3221
		3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3223	$DB_ENV->set_lk_detect;
		3224	};
		3225
		3226	cf::cleanup "db_env_open(db): $@" if $@;
		3227	};
		3228	}
		3229	}
		3230
		3231	{
		3232	IO::AIO::min_parallel 8;
		3233
		3234	undef $Coro::AIO::WATCHER;
2498	IO::AIO::max_poll_time $TICK * 0.2;	3235	IO::AIO::max_poll_time $TICK * 0.1;
2499
2500	$AIO_POLL_WATCHER = Event->io (	3236	$AIO_POLL_WATCHER = Event->io (
2501	fd => IO::AIO::poll_fileno,	3237	reentrant => 0,
2502	poll => 'r',
2503	prio => 5,
2504	data => WF_AUTOCANCEL,
2505	cb => \&IO::AIO::poll_cb,
2506	);
2507
2508	$WRITE_RUNTIME_WATCHER = Event->timer (
2509	data => WF_AUTOCANCEL,	3238	data => WF_AUTOCANCEL,
2510	after => 1,	3239	fd => IO::AIO::poll_fileno,
2511	interval => 10,	3240	poll => 'r',
2512	prio => 6, # keep it lowest so it acts like a watchdog	3241	prio => 6,
2513	cb => Coro::unblock_sub {	3242	cb => \&IO::AIO::poll_cb,
2514	write_runtime	3243	);
2515	or warn "ERROR: unable to write runtime file: $!";	3244	}
		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
2516	},	3281	}
2517	);	3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
2518		3286
2519	END { cf::emergency_save }	3287	END { cf::emergency_save }
2520		3288
2521	1	3289	1
2522		3290

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