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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.190 by root, Mon Jan 22 03:44:41 2007 UTC vs.
Revision 1.302 by root, Tue Jul 10 16:23:59 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.4 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	132	every server tick.
102		133
103	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.
127		171
128	=back	172	=back
129		173
130	=cut	174	=cut
131		175
132	BEGIN {	176	BEGIN {
133	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	178	my $msg = join "", @_;
135	utf8::encode $msg;
136		179
137	$msg .= "\n"	180	$msg .= "\n"
138	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
139		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
140	LOG llevError, $msg;	186	LOG llevError, $msg;
141	};	187	};
142	}	188	}
143		189
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		197
151	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	199	# within the Safe compartment.
153	for my $pkg (qw(	200	for my $pkg (qw(
154	cf::global cf::attachable	201	cf::global cf::attachable
…		…
162	}	209	}
163		210
164	$Event::DIED = sub {	211	$Event::DIED = sub {
165	warn "error in event callback: @_";	212	warn "error in event callback: @_";
166	};	213	};
		214
		215	#############################################################################
167		216
168	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
169		218
170	=over 4	219	=over 4
171		220
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	240	$d
192	} || "[unable to dump $_[0]: '$@']";	241	} || "[unable to dump $_[0]: '$@']";
193	}	242	}
194		243
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
198		245
199	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
200		247
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
209		249
210	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
211		251
212	=cut	252	=cut
213		253
214	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
216	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
218		258
219	=item cf::lock_wait $string	259	=item cf::lock_wait $string
220		260
221	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
222		262
…		…
228	returned.	268	returned.
229		269
230	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
232		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
233	=cut	277	=cut
234		278
235	our %LOCK;	279	our %LOCK;
236		280
237	sub lock_wait($) {	281	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
258	}	302	}
259	}	303	}
260		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
261	sub freeze_mainloop {	311	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
263		313
264	my $guard = Coro::guard {	314	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	316	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
270	$guard	318	$guard
271	}	319	}
272		320
273	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
280		328
281	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
282		330
283	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
284		332
285	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
288		337
289	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
292	fast or be very important.	341	fast or be very important.
…		…
295		344
296	sub sync_job(&) {	345	sub sync_job(&) {
297	my ($job) = @_;	346	my ($job) = @_;
298		347
299	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
300	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
302		353
303	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
315		366
316	while ($busy) {	367	while ($busy) {
317	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
318	}	369	}
319		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
320	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
321	} else {	379	} else {
322	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
323		381
324	$job->()	382	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
344		402
345	$coro	403	$coro
346	}	404	}
347		405
348	sub write_runtime {	406	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		407
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
352	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
353		412
354	my $value = $cf::RUNTIME + 90 + 10;	413	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		414
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	415	sub _store_scalar {
359	and return;	416	open my $fh, ">", \my $buf
360		417	or die "fork_call: cannot open fh-to-buf in child : $!";
361	aio_fsync $fh	418	Storable::store_fd $_[0], $fh;
362	and return;
363
364	close $fh	419	close $fh;
365	or return;
366		420
367	aio_rename "$runtime~", $runtime	421	$buf
368	and return;	422	}
369		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
370	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	593	}
372		594
373	=back	595	=back
374		596
375	=cut	597	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
384		606
385	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	609	Crossfire TRT).
388		610
389	=over 4	611	=over 4
390		612
391	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
392		614
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
556		778
557	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		783
562	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	785	my $pkg = shift @arg;
564		786
565	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
595	}	817	}
596		818
597	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
598	} else {	820	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	822	}
601		823
602	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
603	}	825	}
604		826
…		…
606	if (ref $_[0]) {	828	if (ref $_[0]) {
607	_object_attach @_;	829	_object_attach @_;
608	} else {	830	} else {
609	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
610	}	832	}
		833	_recalc_want;
611	};	834	};
612		835
613	# all those should be optimised	836	# all those should be optimised
614	sub cf::attachable::detach {	837	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
619	reattach ($obj);	842	reattach ($obj);
620	} else {	843	} else {
621	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
622	}	845	}
		846	_recalc_want;
623	};	847	};
624		848
625	sub cf::attachable::attached {	849	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
627		851
…		…
750	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
751		975
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	980	close $fh;
757		981
758	if (@$objs) {	982	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	983	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	988	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
766	}	990	}
767	} else {	991	} else {
768	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
800	or return;	1024	or return;
801	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
802	}	1026	}
803		1027
804	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1030	return ($data, $av);
807	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
808		1038
809	#############################################################################	1039	#############################################################################
810	# command handling &c	1040	# command handling &c
811		1041
812	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1056	}
827		1057
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1059
830	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
831		1065
832	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
833	called.	1067	called.
834		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
835	=cut	1080	=cut
836		1081
837	sub register_extcmd {	1082	sub register_extcmd {
838	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
839		1084
840	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
841	}	1092	}
842		1093
843	cf::player->attach (	1094	cf::player->attach (
844	on_command => sub {	1095	on_command => sub {
845	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1105	cf::override;
855	},	1106	},
856	on_extcmd => sub {	1107	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
858		1109
859	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1111
861	if (ref $msg) {	1112	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
870		1121
871	cf::override;	1122	cf::override;
872	},	1123	},
873	);	1124	);
874		1125
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 {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
910	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1131	next unless -r $path;
912	eval {	1132
913	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
914	1	1190	}
915	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
916	}	1196	};
917	}	1197	}
918		1198
919	#############################################################################	1199	#############################################################################
920		1200
		1201	=back
		1202
921	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
922		1204
923	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
924		1206
925	=cut	1207	=cut
…		…
937	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
938		1220
939	=cut	1221	=cut
940		1222
941	sub playerdir($) {	1223	sub playerdir($) {
942	cf::localdir	1224	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1226	}
948		1227
949	sub path($) {	1228	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1230
952	(playerdir $login) . "/$login.pl"	1231	(playerdir $login) . "/playerdata"
953	}	1232	}
954		1233
955	sub find_active($) {	1234	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1235	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1236	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1249	my $login = $_[0];
971		1250
972	my $guard = cf::lock_acquire "user_find:$login";	1251	my $guard = cf::lock_acquire "user_find:$login";
973		1252
974	$cf::PLAYER{$_[0]} || do {	1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
975	my $pl = load_pl path $login	1261	my $pl = load_pl path $login
976	or return;	1262	or return;
977	$cf::PLAYER{$login} = $pl	1263	$cf::PLAYER{$login} = $pl
978	}	1264	}
979	}	1265	}
…		…
1016		1302
1017	=cut	1303	=cut
1018		1304
1019	sub quit_character {	1305	sub quit_character {
1020	my ($pl) = @_;	1306	my ($pl) = @_;
		1307
		1308	my $name = $pl->ob->name;
1021		1309
1022	$pl->{deny_save} = 1;	1310	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1311	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1312
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1313	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1318	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1319	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1320	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1321	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1322	$pl->destroy;
		1323
		1324	my $prefix = qr<^~\Q$name\E/>;
		1325
		1326	# nuke player maps
		1327	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1328
1035	IO::AIO::aio_rmtree $temp;	1329	IO::AIO::aio_rmtree $temp;
		1330	}
		1331
		1332	=item $pl->kick
		1333
		1334	Kicks a player out of the game. This destroys the connection.
		1335
		1336	=cut
		1337
		1338	sub kick {
		1339	my ($pl, $kicker) = @_;
		1340
		1341	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1342	$pl->killer ("kicked");
		1343	$pl->ns->destroy;
1036	}	1344	}
1037		1345
1038	=item cf::player::list_logins	1346	=item cf::player::list_logins
1039		1347
1040	Returns am arrayref of all valid playernames in the system, can take a	1348	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1349	while and may block, so not sync_job-capable, ever.
1042		1350
1043	=cut	1351	=cut
1044		1352
1045	sub list_logins {	1353	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1354	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1355	or return [];
1048		1356
1049	my @logins;	1357	my @logins;
1050		1358
1051	for my $login (@$dirs) {	1359	for my $login (@$dirs) {
…		…
1068	=cut	1376	=cut
1069		1377
1070	sub maps($) {	1378	sub maps($) {
1071	my ($pl) = @_;	1379	my ($pl) = @_;
1072		1380
		1381	$pl = ref $pl ? $pl->ob->name : $pl;
		1382
1073	my $files = aio_readdir playerdir $pl	1383	my $files = aio_readdir playerdir $pl
1074	or return;	1384	or return;
1075		1385
1076	my @paths;	1386	my @paths;
1077		1387
1078	for (@$files) {	1388	for (@$files) {
1079	utf8::decode $_;	1389	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1390	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1391	next unless /^$PATH_SEP/o;
1082		1392
1083	s/\.map$//;	1393	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1394	}
1086		1395
1087	\@paths	1396	\@paths
1088	}	1397	}
1089		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1091		1450
1092	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1093		1452
1094	=cut	1453	=cut
1095		1454
1096	sub ext_reply($$$%) {	1455	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1098		1457
1099	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1100		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1460	}
1103		1461
1104	package cf;	1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
		1489	my ($path) = @_;
		1490
		1491	my ($match, $specificity);
		1492
		1493	for my $region (list) {
		1494	if ($region->match && $path =~ $region->match) {
		1495	($match, $specificity) = ($region, $region->specificity)
		1496	if $region->specificity > $specificity;
		1497	}
		1498	}
		1499
		1500	$match
		1501	}
1105		1502
1106	=back	1503	=back
1107
1108		1504
1109	=head3 cf::map	1505	=head3 cf::map
1110		1506
1111	=over 4	1507	=over 4
1112		1508
…		…
1167	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1168		1564
1169	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1170	local $self->{path};	1566	local $self->{path};
1171	local $self->{load_path};	1567	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1568
1175	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1176	}	1570	}
1177		1571
1178	sub normalise {	1572	sub normalise {
1179	my ($path, $base) = @_;	1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
1180		1578
1181	# map plan:	1579	# map plan:
1182	#	1580	#
1183	# /! non-realised random map exit (special hack!)	1581	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1582	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1619	$self->init; # pass $1 etc.
1222	return $self;	1620	return $self;
1223	}	1621	}
1224	}	1622	}
1225		1623
1226	Carp::carp "unable to resolve path '$path'.";	1624	Carp::carp "unable to resolve path '$path' (base '$base').";
1227	()	1625	()
1228	}	1626	}
1229		1627
1230	sub init {	1628	sub init {
1231	my ($self) = @_;	1629	my ($self) = @_;
…		…
1246		1644
1247	# the original (read-only) location	1645	# the original (read-only) location
1248	sub load_path {	1646	sub load_path {
1249	my ($self) = @_;	1647	my ($self) = @_;
1250		1648
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1649	"$MAPDIR/$self->{path}.map"
1252	}	1650	}
1253		1651
1254	# the temporary/swap location	1652	# the temporary/swap location
1255	sub save_path {	1653	sub save_path {
1256	my ($self) = @_;	1654	my ($self) = @_;
1257		1655
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1657	"$TMPDIR/$path.map"
1260	}	1658	}
1261		1659
1262	# the unique path, undef == no special unique path	1660	# the unique path, undef == no special unique path
1263	sub uniq_path {	1661	sub uniq_path {
1264	my ($self) = @_;	1662	my ($self) = @_;
1265		1663
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1665	"$UNIQUEDIR/$path"
1268	}	1666	}
1269		1667
1270	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1271	# all maps in C++...	1669	# all maps in C++...
1272	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1274		1672
1275	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1276	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1277	}	1675	}
1278		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1279	sub unlink_save {	1685	sub unlink_save {
1280	my ($self) = @_;	1686	my ($self) = @_;
1281		1687
1282	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1286		1692
1287	sub load_header_from($) {	1693	sub load_header_from($) {
1288	my ($self, $path) = @_;	1694	my ($self, $path) = @_;
1289		1695
1290	utf8::encode $path;	1696	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
1292	or return;	1698	# or return;
1293		1699
1294	$self->_load_header ($path)	1700	$self->_load_header ($path)
1295	or return;	1701	or return;
1296		1702
1297	$self->{load_path} = $path;	1703	$self->{load_path} = $path;
…		…
1339	$self->load_header_orig	1745	$self->load_header_orig
1340	or return;	1746	or return;
1341	$self->prepare_orig;	1747	$self->prepare_orig;
1342	}	1748	}
1343		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
		1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
		1755
1344	1	1756	1
1345	}	1757	}
1346		1758
1347	sub find;	1759	sub find;
1348	sub find {	1760	sub find {
…		…
1360	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1361		1773
1362	$map->load_header	1774	$map->load_header
1363	or return;	1775	or return;
1364		1776
1365	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1368	$map->reset;	1780	$map->reset;
1369	undef $guard;	1781	undef $guard;
1370	$map = find $path	1782	return find $path;
1371	or return;
1372	}	1783	}
1373		1784
1374	$cf::MAP{$path} = $map	1785	$cf::MAP{$path} = $map
1375	}	1786	}
1376	}	1787	}
…		…
1379	sub post_load { }	1790	sub post_load { }
1380		1791
1381	sub load {	1792	sub load {
1382	my ($self) = @_;	1793	my ($self) = @_;
1383		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1384	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1385	my $guard = cf::lock_acquire "map_load:$path";	1800	my $guard = cf::lock_acquire "map_load:$path";
1386		1801
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1388		1803
1389	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1390		1805
1391	$self->alloc;	1806	$self->alloc;
1392		1807
1393	$self->pre_load;	1808	$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;	1809	Coro::cede;
1419	$self->set_darkness_map;	1810
		1811	$self->_load_objects ($self->{load_path}, 1)
		1812	or return;
		1813
		1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1815	if delete $self->{load_original};
		1816
		1817	if (my $uniq = $self->uniq_path) {
		1818	utf8::encode $uniq;
		1819	if (aio_open $uniq, O_RDONLY, 0) {
		1820	$self->clear_unique_items;
		1821	$self->_load_objects ($uniq, 0);
		1822	}
		1823	}
		1824
		1825	Coro::cede;
		1826	# now do the right thing for maps
		1827	$self->link_multipart_objects;
1420	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	1829	unless $self->difficulty;
1422	Coro::cede;	1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1423	$self->activate;	1839	$self->activate;
		1840	}
		1841
		1842	$self->in_memory (cf::MAP_IN_MEMORY);
1424	}	1843	}
1425		1844
1426	$self->post_load;	1845	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	1846	}
1430		1847
1431	sub customise_for {	1848	sub customise_for {
1432	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1433		1850
1434	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
1436		1856
1437	$self	1857	$self
1438	}	1858	}
1439		1859
1440	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
…		…
1551		1971
1552	sub reset_at {	1972	sub reset_at {
1553	my ($self) = @_;	1973	my ($self) = @_;
1554		1974
1555	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1557	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1558		1977
1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1561		1980
…		…
1572	my ($self) = @_;	1991	my ($self) = @_;
1573		1992
1574	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		1994
1576	return if $self->players;	1995	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#
1578		1996
1579	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1580		2008
1581	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
1582		2010
1583	$self->in_memory (cf::MAP_SWAPPED);
1584	$self->clear;	2011	$self->clear;
1585		2012
1586	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1587		2014
1588	$self->unlink_save;	2015	$self->unlink_save;
…		…
1607	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1608		2035
1609	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1610	}	2037	}
1611		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1612	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1613		2076
1614	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1615	instantiated unique items. May block.	2078	instantiated unique items. May block.
1616		2079
1617	=cut	2080	=cut
1618		2081
1619	sub unique_maps() {	2082	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2083	[
1621	or return;	2084	map {
1622
1623	my @paths;
1624
1625	for (@$files) {
1626	utf8::decode $_;	2085	utf8::decode $_;
1627	next if /\.pst$/;
1628	next unless /^$PATH_SEP/o;
1629
1630	s/\.map$//;	2086	/\.map$/
1631	push @paths, $_;	2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2090	]
1633
1634	\@paths
1635	}	2091	}
1636		2092
1637	package cf;	2093	package cf;
1638		2094
1639	=back	2095	=back
…		…
1685		2141
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2143
1688	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1690	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1693	}	2163	}
1694	}	2164	}
1695		2165
1696	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1697		2167
…		…
1730	=cut	2200	=cut
1731		2201
1732	sub link_map {	2202	sub link_map {
1733	unless ($LINK_MAP) {	2203	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	2204	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	2206	$LINK_MAP->load;
1737	}	2207	}
1738		2208
1739	$LINK_MAP	2209	$LINK_MAP
1740	}	2210	}
…		…
1745	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1746		2216
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		2218
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1751		2221
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1753	}	2223	}
1754		2224
1755	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1757		2229
1758	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1759		2231
1760	unless ($map) {	2232	unless ($map) {
1761	# restore original map position	2233	# restore original map position
…		…
1779	$map->load;	2251	$map->load;
1780	$map->load_diag;	2252	$map->load_diag;
1781		2253
1782	return unless $self->contr->active;	2254	return unless $self->contr->active;
1783	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1784	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1785	}	2259	}
1786		2260
1787	cf::player->attach (
1788	on_logout => sub {
1789	my ($pl) = @_;
1790
1791	# abort map switching before logout
1792	if ($pl->ob->{_link_pos}) {
1793	cf::sync_job {
1794	$pl->ob->leave_link
1795	};
1796	}
1797	},
1798	on_login => sub {
1799	my ($pl) = @_;
1800
1801	# try to abort aborted map switching on player login :)
1802	# should happen only on crashes
1803	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;
1805	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);
1812	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;
1814	})->prio (2);
1815	}
1816	},
1817	);
1818
1819	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1820		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1821	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1822		2271
1823	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1824	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1825		2277
1826	$self->enter_link;	2278	$self->enter_link;
1827		2279
1828	(async {	2280	(async {
		2281	my $map = eval {
1829	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1830	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1831		2286	$map = $check->($map) if $check && $map;
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1833	# if $map;
1834
1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1836		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1837	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1838	})->prio (1);	2303	})->prio (1);
1839	}	2304	}
1840		2305
1841	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1842		2307
…		…
1871	# that depends on the exit object	2336	# that depends on the exit object
1872		2337
1873	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1874		2339
1875	if ($exit->map) {	2340	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1880	}	2345	}
1881		2346
1882	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1883		2348
1884	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1885	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2351	my $meta = "$RANDOMDIR/$md5.meta";
1887		2352
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2355	undef $fh;
1891	aio_rename "$meta~", $meta;	2356	aio_rename "$meta~", $meta;
…		…
1898	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1900		2365
1901	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1902		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1903	$self->enter_link;	2379	$self->enter_link;
		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
1904		2384
1905	(async {	2385	(async {
1906	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1907	unless (eval {	2387	unless (eval {
1908	prepare_random_map $exit	2388	$self->goto ($slaying, $hp, $sp);
1909	if $exit->slaying eq "/!";
1910
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1913		2389
1914	1;	2390	1;
1915	}) {	2391	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1917	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1918	. "Please report this to the dungeon master!",	2394	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2396
1921	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1922	$self->leave_link;	2398	$self->leave_link;
1923	}	2399	}
1924	})->prio (1);	2400	})->prio (1);
…		…
1937		2413
1938	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1940		2416
1941	utf8::encode $text;	2417	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2419	}
1944		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1945		2473
1946	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1947		2475
1948	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1950	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1951		2479
1952	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1953	reliable at some point in the future.	2481	become reliable at some point in the future.
1954		2482
1955	=cut	2483	=cut
1956		2484
1957	sub cf::client::query {	2485	sub cf::client::query {
1958	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1966	utf8::encode $text;	2494	utf8::encode $text;
1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1968		2496
1969	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1970	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1971	}	2501	}
1972		2502
1973	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1974	on_reply => sub {	2509	on_reply => sub {
1975	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1976		2511
1977	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1978	# get handled first	2513	# get handled first
1979	my $queue = delete $ns->{query_queue}	2514	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		2516
1982	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		2519
1984	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1985		2521
1986	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	2523	if (@$queue) {
…		…
1989	} else {	2525	} else {
1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1991	}	2527	}
1992	}	2528	}
1993	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1994	);	2548	);
1995		2549
1996	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
1997		2551
1998	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2045		2599
2046	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
2047		2601
2048	=pod	2602	=pod
2049		2603
2050	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2051		2605
2052	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2053	cf::object::player player	2610	cf::object::player
2054	cf::player peaceful	2611	player
2055	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2056		2618
2057	=cut	2619	=cut
2058		2620
2059	for (	2621	for (
2060	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2061	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2062	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2063	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2064	) {	2627	) {
2065	no strict 'refs';	2628	no strict 'refs';
…		…
2136	=back	2699	=back
2137		2700
2138	=cut	2701	=cut
2139		2702
2140	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
2141		2705
2142	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
2143		2708
2144	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
2145	currently store anything that can be serialised using Storable, which
2146	excludes objects.
2147		2710
2148	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
2149	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
2150		2714
2151	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
2152		2716
2153	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
2154		2719
2155	Return a hashref for use by the extension C<$family>, which can be
2156	modified. After modifications, you have to call C<cf::db_dirty> or
2157	C<cf::db_sync>.
2158
2159	=item $value = cf::db_get $family => $key
2160
2161	Returns a single value from the database
2162
2163	=item cf::db_put $family => $hashref
2164
2165	Stores the given family hashref into the database. Updates are delayed, if
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2167
2168	=item cf::db_put $family => $key => $value
2169
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180
2181	=cut
2182
2183	our $DB;
2184
2185	{
2186	my $path = cf::localdir . "/database.pst";
2187
2188	sub db_load() {
2189	$DB = stat $path ? Storable::retrieve $path : { };
2190	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
2191		2722
2192	my $pid;	2723	while (my ($face, $info) = each %$faces) {
		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
		2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2193		2729
2194	sub db_save() {	2730	cf::cede_to_tick;
2195	waitpid $pid, 0 if $pid;
2196	if (0 == ($pid = fork)) {
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}
2202	}
2203
2204	my $dirty;
2205
2206	sub db_sync() {
2207	db_save if $dirty;
2208	undef $dirty;
2209	}
2210
2211	my $idle = Event->idle (
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {
2226	@_ >= 2
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230
2231	sub db_put($$;$) {
2232	if (@_ >= 3) {
2233	$DB->{$_[0]}{$_[1]} = $_[2];
2234	} else {
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239
2240	cf::global->attach (
2241	prio => 10000,
2242	on_cleanup => sub {
2243	db_sync;
2244	},	2731	}
2245	);
2246	}
2247		2732
2248	#############################################################################	2733	while (my ($face, $info) = each %$faces) {
2249	# the server's main()	2734	next unless $info->{smooth};
		2735	my $idx = cf::face::find $face
		2736	or next;
		2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
		2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2740	} else {
		2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2742	}
		2743
		2744	cf::cede_to_tick;
		2745	}
		2746	}
		2747
		2748	{
		2749	my $anims = $facedata->{animinfo};
		2750
		2751	while (my ($anim, $info) = each %$anims) {
		2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2753	cf::cede_to_tick;
		2754	}
		2755
		2756	cf::anim::invalidate_all; # d'oh
		2757	}
		2758
		2759	{
		2760	# TODO: for gcfclient pleasure, we should give resources
		2761	# that gcfclient doesn't grok a >10000 face index.
		2762	my $res = $facedata->{resource};
		2763	my $enc = JSON::XS->new->utf8->canonical;
		2764
		2765	while (my ($name, $info) = each %$res) {
		2766	my $meta = $enc->encode ({
		2767	name => $name,
		2768	type => $info->{type},
		2769	copyright => $info->{copyright},
		2770	});
		2771	my $data = pack "(w/a*)*", $meta, $info->{data};
		2772	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2773
		2774	use Data::Dumper; warn Dumper substr $data, 0, 100;#d#
		2775
		2776	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2777	cf::face::set_type $idx, 1;
		2778	cf::face::set_data $idx, 0, $data, $chk;
		2779
		2780	# TODO
		2781	cf::cede_to_tick;
		2782	}
		2783	}
		2784
		2785	1
		2786	}
		2787
		2788	sub reload_regions {
		2789	load_resource_file "$MAPDIR/regions"
		2790	or die "unable to load regions file\n";
		2791	}
		2792
		2793	sub reload_facedata {
		2794	load_facedata "$DATADIR/facedata"
		2795	or die "unable to load facedata\n";
		2796	}
		2797
		2798	sub reload_archetypes {
		2799	load_resource_file "$DATADIR/archetypes"
		2800	or die "unable to load archetypes\n";
		2801	#d# NEED to laod twice to resolve forward references
		2802	# this really needs to be done in an extra post-pass
		2803	# (which needs to be synchronous, so solve it differently)
		2804	load_resource_file "$DATADIR/archetypes"
		2805	or die "unable to load archetypes\n";
		2806	}
		2807
		2808	sub reload_treasures {
		2809	load_resource_file "$DATADIR/treasures"
		2810	or die "unable to load treasurelists\n";
		2811	}
		2812
		2813	sub reload_resources {
		2814	warn "reloading resource files...\n";
		2815
		2816	reload_regions;
		2817	reload_facedata;
		2818	#reload_archetypes;#d#
		2819	reload_archetypes;
		2820	reload_treasures;
		2821
		2822	warn "finished reloading resource files\n";
		2823	}
		2824
		2825	sub init {
		2826	reload_resources;
		2827	}
2250		2828
2251	sub cfg_load {	2829	sub cfg_load {
2252	open my $fh, "<:utf8", cf::confdir . "/config"	2830	open my $fh, "<:utf8", "$CONFDIR/config"
2253	or return;	2831	or return;
2254		2832
2255	local $/;	2833	local $/;
2256	*CFG = YAML::Syck::Load <$fh>;	2834	*CFG = YAML::Syck::Load <$fh>;
2257		2835
…		…
2277	Event::one_event;	2855	Event::one_event;
2278	})->prio (Coro::PRIO_MAX);	2856	})->prio (Coro::PRIO_MAX);
2279	};	2857	};
2280		2858
2281	cfg_load;	2859	cfg_load;
2282	db_load;	2860	db_init;
2283	load_extensions;	2861	load_extensions;
2284		2862
2285	$TICK_WATCHER->start;	2863	$TICK_WATCHER->start;
2286	Event::loop;	2864	Event::loop;
2287	}	2865	}
…		…
2294	for my $signal (qw(INT HUP TERM)) {	2872	for my $signal (qw(INT HUP TERM)) {
2295	Event->signal (	2873	Event->signal (
2296	reentrant => 0,	2874	reentrant => 0,
2297	data => WF_AUTOCANCEL,	2875	data => WF_AUTOCANCEL,
2298	signal => $signal,	2876	signal => $signal,
		2877	prio => 0,
2299	cb => sub {	2878	cb => sub {
2300	cf::cleanup "SIG$signal";	2879	cf::cleanup "SIG$signal";
2301	},	2880	},
2302	);	2881	);
2303	}	2882	}
		2883	}
		2884
		2885	sub write_runtime {
		2886	my $runtime = "$LOCALDIR/runtime";
		2887
		2888	# first touch the runtime file to show we are still running:
		2889	# the fsync below can take a very very long time.
		2890
		2891	IO::AIO::aio_utime $runtime, undef, undef;
		2892
		2893	my $guard = cf::lock_acquire "write_runtime";
		2894
		2895	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2896	or return;
		2897
		2898	my $value = $cf::RUNTIME + 90 + 10;
		2899	# 10 is the runtime save interval, for a monotonic clock
		2900	# 60 allows for the watchdog to kill the server.
		2901
		2902	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2903	and return;
		2904
		2905	# always fsync - this file is important
		2906	aio_fsync $fh
		2907	and return;
		2908
		2909	# touch it again to show we are up-to-date
		2910	aio_utime $fh, undef, undef;
		2911
		2912	close $fh
		2913	or return;
		2914
		2915	aio_rename "$runtime~", $runtime
		2916	and return;
		2917
		2918	warn "runtime file written.\n";
		2919
		2920	1
2304	}	2921	}
2305		2922
2306	sub emergency_save() {	2923	sub emergency_save() {
2307	my $freeze_guard = cf::freeze_mainloop;	2924	my $freeze_guard = cf::freeze_mainloop;
2308		2925
…		…
2325	my $map = $cf::MAP{$path} or next;	2942	my $map = $cf::MAP{$path} or next;
2326	$map->valid or next;	2943	$map->valid or next;
2327	$map->save;	2944	$map->save;
2328	}	2945	}
2329	warn "end emergency map save\n";	2946	warn "end emergency map save\n";
		2947
		2948	warn "begin emergency database checkpoint\n";
		2949	BDB::db_env_txn_checkpoint $DB_ENV;
		2950	warn "end emergency database checkpoint\n";
2330	};	2951	};
2331		2952
2332	warn "leave emergency perl save\n";	2953	warn "leave emergency perl save\n";
2333	}	2954	}
2334		2955
		2956	sub post_cleanup {
		2957	my ($make_core) = @_;
		2958
		2959	warn Carp::longmess "post_cleanup backtrace"
		2960	if $make_core;
		2961	}
		2962
2335	sub reload() {	2963	sub do_reload_perl() {
2336	# can/must only be called in main	2964	# can/must only be called in main
2337	if ($Coro::current != $Coro::main) {	2965	if ($Coro::current != $Coro::main) {
2338	warn "can only reload from main coroutine";	2966	warn "can only reload from main coroutine";
2339	return;	2967	return;
2340	}	2968	}
2341		2969
2342	warn "reloading...";	2970	warn "reloading...";
2343		2971
2344	warn "cancelling server ticker";	2972	warn "entering sync_job";
2345	$TICK_WATCHER->cancel;
2346		2973
		2974	cf::sync_job {
		2975	cf::write_runtime; # external watchdog should not bark
2347	cf::emergency_save;	2976	cf::emergency_save;
		2977	cf::write_runtime; # external watchdog should not bark
2348		2978
2349	eval {	2979	warn "syncing database to disk";
		2980	BDB::db_env_txn_checkpoint $DB_ENV;
		2981
2350	# if anything goes wrong in here, we should simply crash as we already saved	2982	# if anything goes wrong in here, we should simply crash as we already saved
2351
2352	warn "syncing database to disk";
2353	cf::db_sync;
2354		2983
2355	warn "cancelling all WF_AUTOCANCEL watchers";	2984	warn "cancelling all WF_AUTOCANCEL watchers";
2356	for (Event::all_watchers) {	2985	for (Event::all_watchers) {
2357	$_->cancel if $_->data & WF_AUTOCANCEL;	2986	$_->cancel if $_->data & WF_AUTOCANCEL;
2358	}	2987	}
2359		2988
2360	warn "flushing outstanding aio requests";	2989	warn "flushing outstanding aio requests";
2361	for (;;) {	2990	for (;;) {
		2991	BDB::flush;
2362	IO::AIO::flush;	2992	IO::AIO::flush;
2363	Coro::cede;	2993	Coro::cede;
2364	last unless IO::AIO::nreqs;	2994	last unless IO::AIO::nreqs || BDB::nreqs;
2365	warn "iterate...";	2995	warn "iterate...";
2366	}	2996	}
		2997
		2998	++$RELOAD;
2367		2999
2368	warn "cancelling all extension coros";	3000	warn "cancelling all extension coros";
2369	$_->cancel for values %EXT_CORO;	3001	$_->cancel for values %EXT_CORO;
2370	%EXT_CORO = ();	3002	%EXT_CORO = ();
2371		3003
2372	warn "removing commands";	3004	warn "removing commands";
2373	%COMMAND = ();	3005	%COMMAND = ();
2374		3006
2375	warn "removing ext commands";	3007	warn "removing ext/exti commands";
2376	%EXTCMD = ();	3008	%EXTCMD = ();
		3009	%EXTICMD = ();
2377		3010
2378	warn "unloading/nuking all extensions";	3011	warn "unloading/nuking all extensions";
2379	for my $pkg (@EXTS) {	3012	for my $pkg (@EXTS) {
2380	warn "... unloading $pkg";	3013	warn "... unloading $pkg";
2381		3014
…		…
2411	Symbol::delete_package "safe::$_"	3044	Symbol::delete_package "safe::$_"
2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3045	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2413		3046
2414	warn "unloading cf.pm \"a bit\"";	3047	warn "unloading cf.pm \"a bit\"";
2415	delete $INC{"cf.pm"};	3048	delete $INC{"cf.pm"};
		3049	delete $INC{"cf/pod.pm"};
2416		3050
2417	# don't, removes xs symbols, too,	3051	# don't, removes xs symbols, too,
2418	# and global variables created in xs	3052	# and global variables created in xs
2419	#Symbol::delete_package __PACKAGE__;	3053	#Symbol::delete_package __PACKAGE__;
2420		3054
…		…
2424	require cf;	3058	require cf;
2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3059	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2426		3060
2427	warn "loading config and database again";	3061	warn "loading config and database again";
2428	cf::cfg_load;	3062	cf::cfg_load;
2429	cf::db_load;
2430		3063
2431	warn "loading extensions";	3064	warn "loading extensions";
2432	cf::load_extensions;	3065	cf::load_extensions;
2433		3066
2434	warn "reattaching attachments to objects/players";	3067	warn "reattaching attachments to objects/players";
2435	_global_reattach;	3068	_global_reattach; # objects, sockets
2436	warn "reattaching attachments to maps";	3069	warn "reattaching attachments to maps";
2437	reattach $_ for values %MAP;	3070	reattach $_ for values %MAP;
		3071	warn "reattaching attachments to players";
		3072	reattach $_ for values %PLAYER;
2438		3073
2439	warn "restarting server ticker";	3074	warn "leaving sync_job";
2440		3075
2441	$TICK_WATCHER->start;	3076	1
2442	};	3077	} or do {
2443
2444	if ($@) {
2445	warn $@;	3078	warn $@;
2446	warn "error while reloading, exiting.";	3079	warn "error while reloading, exiting.";
2447	exit 1;	3080	exit 1;
2448	}	3081	};
2449		3082
2450	warn "reloaded";	3083	warn "reloaded";
2451	};	3084	};
2452		3085
2453	our $RELOAD_WATCHER; # used only during reload	3086	our $RELOAD_WATCHER; # used only during reload
2454		3087
		3088	sub reload_perl() {
		3089	# doing reload synchronously and two reloads happen back-to-back,
		3090	# coro crashes during coro_state_free->destroy here.
		3091
		3092	$RELOAD_WATCHER ||= Event->timer (
		3093	reentrant => 0,
		3094	after => 0,
		3095	data => WF_AUTOCANCEL,
		3096	cb => sub {
		3097	do_reload_perl;
		3098	undef $RELOAD_WATCHER;
		3099	},
		3100	);
		3101	}
		3102
2455	register_command "reload" => sub {	3103	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3104	my ($who, $arg) = @_;
2457		3105
2458	if ($who->flag (FLAG_WIZ)) {	3106	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("reloading server.");	3107	$who->message ("reloading server.");
2460		3108	async { reload_perl };
2461	# doing reload synchronously and two reloads happen back-to-back,
2462	# coro crashes during coro_state_free->destroy here.
2463
2464	$RELOAD_WATCHER ||= Event->timer (
2465	reentrant => 0,
2466	after => 0,
2467	data => WF_AUTOCANCEL,
2468	cb => sub {
2469	reload;
2470	undef $RELOAD_WATCHER;
2471	},
2472	);
2473	}	3109	}
2474	};	3110	};
2475		3111
2476	unshift @INC, $LIBDIR;	3112	unshift @INC, $LIBDIR;
2477		3113
2478	my $bug_warning = 0;	3114	my $bug_warning = 0;
2479		3115
		3116	our @WAIT_FOR_TICK;
		3117	our @WAIT_FOR_TICK_BEGIN;
		3118
		3119	sub wait_for_tick {
		3120	return unless $TICK_WATCHER->is_active;
		3121	return if $Coro::current == $Coro::main;
		3122
		3123	my $signal = new Coro::Signal;
		3124	push @WAIT_FOR_TICK, $signal;
		3125	$signal->wait;
		3126	}
		3127
		3128	sub wait_for_tick_begin {
		3129	return unless $TICK_WATCHER->is_active;
		3130	return if $Coro::current == $Coro::main;
		3131
		3132	my $signal = new Coro::Signal;
		3133	push @WAIT_FOR_TICK_BEGIN, $signal;
		3134	$signal->wait;
		3135	}
		3136
		3137	my $min = 1e6;#d#
		3138	my $avg = 10;
2480	$TICK_WATCHER = Event->timer (	3139	$TICK_WATCHER = Event->timer (
2481	reentrant => 0,	3140	reentrant => 0,
2482	parked => 1,	3141	parked => 1,
2483	prio => -1,	3142	prio => 0,
2484	at => $NEXT_TICK || $TICK,	3143	at => $NEXT_TICK || $TICK,
2485	data => WF_AUTOCANCEL,	3144	data => WF_AUTOCANCEL,
2486	cb => sub {	3145	cb => sub {
2487	if ($Coro::current != $Coro::main) {	3146	if ($Coro::current != $Coro::main) {
2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3147	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2489	unless ++$bug_warning > 10;	3148	unless ++$bug_warning > 10;
2490	return;	3149	return;
2491	}	3150	}
2492		3151
2493	$NOW = Event::time;	3152	$NOW = $tick_start = Event::time;
2494		3153
2495	cf::server_tick; # one server iteration	3154	cf::server_tick; # one server iteration
		3155
		3156	0 && sync_job {#d#
		3157	for(1..10) {
		3158	my $t = Event::time;
		3159	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3160	or die;
		3161
		3162	$map->width (50);
		3163	$map->height (50);
		3164	$map->alloc;
		3165	$map->_load_objects ("/tmp/x.map", 1);
		3166	my $t = Event::time - $t;
		3167
		3168	#next unless $t < 0.0013;#d#
		3169	if ($t < $min) {
		3170	$min = $t;
		3171	}
		3172	$avg = $avg * 0.99 + $t * 0.01;
		3173	}
		3174	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3175	exit 0;
		3176	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3177	};
		3178
2496	$RUNTIME += $TICK;	3179	$RUNTIME += $TICK;
2497	$NEXT_TICK += $TICK;	3180	$NEXT_TICK += $TICK;
2498		3181
2499	$WAIT_FOR_TICK->broadcast;	3182	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3183	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3184	Coro::async_pool {
		3185	write_runtime
		3186	or warn "ERROR: unable to write runtime file: $!";
		3187	};
		3188	}
2501		3189
2502	my $AFTER = Event::time;	3190	# my $AFTER = Event::time;
2503	warn $AFTER - $NOW;#d#	3191	# warn $AFTER - $NOW;#d#
		3192
		3193	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3194	$sig->send;
		3195	}
		3196	while (my $sig = shift @WAIT_FOR_TICK) {
		3197	$sig->send;
		3198	}
		3199
		3200	$NOW = Event::time;
2504		3201
2505	# if we are delayed by four ticks or more, skip them all	3202	# if we are delayed by four ticks or more, skip them all
2506	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3203	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2507		3204
2508	$TICK_WATCHER->at ($NEXT_TICK);	3205	$TICK_WATCHER->at ($NEXT_TICK);
2509	$TICK_WATCHER->start;	3206	$TICK_WATCHER->start;
		3207
		3208	$LOAD = ($NOW - $tick_start) / $TICK;
		3209	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3210
		3211	_post_tick;
		3212
		3213
2510	},	3214	},
2511	);	3215	);
2512		3216
		3217	{
2513	IO::AIO::max_poll_time $TICK * 0.2;	3218	BDB::max_poll_time $TICK * 0.1;
		3219	$BDB_POLL_WATCHER = Event->io (
		3220	reentrant => 0,
		3221	fd => BDB::poll_fileno,
		3222	poll => 'r',
		3223	prio => 0,
		3224	data => WF_AUTOCANCEL,
		3225	cb => \&BDB::poll_cb,
		3226	);
		3227	BDB::min_parallel 8;
2514		3228
		3229	BDB::set_sync_prepare {
		3230	my $status;
		3231	my $current = $Coro::current;
		3232	(
		3233	sub {
		3234	$status = $!;
		3235	$current->ready; undef $current;
		3236	},
		3237	sub {
		3238	Coro::schedule while defined $current;
		3239	$! = $status;
		3240	},
		3241	)
		3242	};
		3243
		3244	unless ($DB_ENV) {
		3245	$DB_ENV = BDB::db_env_create;
		3246
		3247	cf::sync_job {
		3248	eval {
		3249	BDB::db_env_open
		3250	$DB_ENV,
		3251	$BDBDIR,
		3252	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3253	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3254	0666;
		3255
		3256	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3257
		3258	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3259	$DB_ENV->set_lk_detect;
		3260	};
		3261
		3262	cf::cleanup "db_env_open(db): $@" if $@;
		3263	};
		3264	}
		3265	}
		3266
		3267	{
		3268	IO::AIO::min_parallel 8;
		3269
2515	undef $Coro::AIO::WATCHER;	3270	undef $Coro::AIO::WATCHER;
		3271	IO::AIO::max_poll_time $TICK * 0.1;
2516	$AIO_POLL_WATCHER = Event->io (	3272	$AIO_POLL_WATCHER = Event->io (
2517	reentrant => 0,	3273	reentrant => 0,
		3274	data => WF_AUTOCANCEL,
2518	fd => IO::AIO::poll_fileno,	3275	fd => IO::AIO::poll_fileno,
2519	poll => 'r',	3276	poll => 'r',
2520	prio => 6,	3277	prio => 6,
2521	data => WF_AUTOCANCEL,
2522	cb => \&IO::AIO::poll_cb,	3278	cb => \&IO::AIO::poll_cb,
2523	);	3279	);
		3280	}
2524		3281
2525	$WRITE_RUNTIME_WATCHER = Event->timer (	3282	my $_log_backtrace;
2526	reentrant => 0,	3283
2527	data => WF_AUTOCANCEL,	3284	sub _log_backtrace {
2528	after => 1,	3285	my ($msg, @addr) = @_;
2529	interval => 10,	3286
2530	prio => 6, # keep it lowest so it acts like a watchdog	3287	$msg =~ s/\n//;
2531	cb => Coro::unblock_sub {	3288
2532	write_runtime	3289	# limit the # of concurrent backtraces
2533	or warn "ERROR: unable to write runtime file: $!";	3290	if ($_log_backtrace < 2) {
		3291	++$_log_backtrace;
		3292	async {
		3293	my @bt = fork_call {
		3294	@addr = map { sprintf "%x", $_ } @addr;
		3295	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3296	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3297	or die "addr2line: $!";
		3298
		3299	my @funcs;
		3300	my @res = <$fh>;
		3301	chomp for @res;
		3302	while (@res) {
		3303	my ($func, $line) = splice @res, 0, 2, ();
		3304	push @funcs, "[$func] $line";
		3305	}
		3306
		3307	@funcs
		3308	};
		3309
		3310	LOG llevInfo, "[ABT] $msg\n";
		3311	LOG llevInfo, "[ABT] $_\n" for @bt;
		3312	--$_log_backtrace;
		3313	};
		3314	} else {
		3315	LOG llevInfo, "[ABT] $msg\n";
		3316	LOG llevInfo, "[ABT] [suppressed]\n";
2534	},	3317	}
2535	);	3318	}
		3319
		3320	# load additional modules
		3321	use cf::pod;
2536		3322
2537	END { cf::emergency_save }	3323	END { cf::emergency_save }
2538		3324
2539	1	3325	1
2540		3326

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