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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.314 by root, Mon Jul 23 16:53:15 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 3.5 ();	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;
87		116
88	sub cf::map::normalise;	117	sub cf::map::normalise;
89		118
…		…
100	=item $cf::RUNTIME	129	=item $cf::RUNTIME
101		130
102	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
103	every server tick.	132	every server tick.
104		133
105	=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
106		137
107	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		142
110	=item $cf::NOW	143	=item $cf::NOW
111		144
112	The time of the last (current) server tick.	145	The time of the last (current) server tick.
113		146
114	=item $cf::TICK	147	=item $cf::TICK
115		148
116	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.
117		160
118	=item %cf::CFG	161	=item %cf::CFG
119		162
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	164	from wherever your confdir points to.
122		165
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		167
125	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
126	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
127	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.
128	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
129		177
130	=back	178	=back
131		179
132	=cut	180	=cut
133		181
134	BEGIN {	182	BEGIN {
135	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	184	my $msg = join "", @_;
137	utf8::encode $msg;
138		185
139	$msg .= "\n"	186	$msg .= "\n"
140	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
141		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
142	LOG llevError, $msg;	192	LOG llevError, $msg;
143	};	193	};
144	}	194	}
145		195
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		203
153	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	205	# within the Safe compartment.
155	for my $pkg (qw(	206	for my $pkg (qw(
156	cf::global cf::attachable	207	cf::global cf::attachable
…		…
164	}	215	}
165		216
166	$Event::DIED = sub {	217	$Event::DIED = sub {
167	warn "error in event callback: @_";	218	warn "error in event callback: @_";
168	};	219	};
		220
		221	#############################################################################
169		222
170	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
171		224
172	=over 4	225	=over 4
173		226
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	246	$d
194	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
195	}	248	}
196		249
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
200		251
201	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
202		253
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
211		255
212	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
213		257
214	=cut	258	=cut
215		259
216	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
218	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
219	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
220		264
221	=item cf::lock_wait $string	265	=item cf::lock_wait $string
222		266
223	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
224		268
…		…
230	returned.	274	returned.
231		275
232	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
234		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
235	=cut	283	=cut
236		284
237	our %LOCK;	285	our %LOCK;
238		286
239	sub lock_wait($) {	287	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
260	}	308	}
261	}	309	}
262		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
263	sub freeze_mainloop {	317	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
265		319
266	my $guard = Coro::guard {	320	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	322	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
272	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	Useful for short background jobs.
		334
		335	=cut
		336
		337	our @SLOT_QUEUE;
		338	our $SLOT_QUEUE;
		339
		340	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		341	$SLOT_QUEUE = Coro::async {
		342	my $signal = new Coro::Signal;
		343
		344	while () {
		345	next_job:
		346	my $avail = cf::till_tick;
		347	if ($avail > 0.01) {
		348	for (0 .. $#SLOT_QUEUE) {
		349	if ($SLOT_QUEUE[$_][0] < $avail) {
		350	my $job = splice @SLOT_QUEUE, $_, 1, ();
		351	$job->[2]->send;
		352	Coro::cede;
		353	goto next_job;
		354	}
		355	}
		356	}
		357
		358	if (@SLOT_QUEUE) {
		359	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		360	push @cf::WAIT_FOR_TICK, $signal;
		361	$signal->wait;
		362	} else {
		363	Coro::schedule;
		364	}
		365	}
		366	};
		367
		368	sub get_slot($;$) {
		369	my ($time, $pri) = @_;
		370
		371	push @SLOT_QUEUE, [$time, $pri, my $sig = new Coro::Signal];
		372	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		373	$SLOT_QUEUE->ready;
		374	$sig->wait;
273	}	375	}
274		376
275	=item cf::async { BLOCK }	377	=item cf::async { BLOCK }
276		378
277	Currently the same as Coro::async_pool, meaning you cannot use	379	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		384
283	BEGIN { *async = \&Coro::async_pool }	385	BEGIN { *async = \&Coro::async_pool }
284		386
285	=item cf::sync_job { BLOCK }	387	=item cf::sync_job { BLOCK }
286		388
287	The design of crossfire+ requires that the main coro ($Coro::main) is	389	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	390	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	391	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		392	acceptable.
290		393
291	If it must be done, put the blocking parts into C<sync_job>. This will run	394	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	395	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	396	server will be frozen during this time, so the block should either finish
294	fast or be very important.	397	fast or be very important.
…		…
297		400
298	sub sync_job(&) {	401	sub sync_job(&) {
299	my ($job) = @_;	402	my ($job) = @_;
300		403
301	if ($Coro::current == $Coro::main) {	404	if ($Coro::current == $Coro::main) {
		405	my $time = Event::time;
		406
302	# this is the main coro, too bad, we have to block	407	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	408	# till the operation succeeds, freezing the server :/
304		409
305	# TODO: use suspend/resume instead	410	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	411	# (but this is cancel-safe)
…		…
317		422
318	while ($busy) {	423	while ($busy) {
319	Coro::cede or Event::one_event;	424	Coro::cede or Event::one_event;
320	}	425	}
321		426
		427	$time = Event::time - $time;
		428
		429	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		430	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		431
		432	$tick_start += $time; # do not account sync jobs to server load
		433
322	wantarray ? @res : $res[0]	434	wantarray ? @res : $res[0]
323	} else {	435	} else {
324	# we are in another coroutine, how wonderful, everything just works	436	# we are in another coroutine, how wonderful, everything just works
325		437
326	$job->()	438	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	457	$EXT_CORO{$coro+0} = $coro;
346		458
347	$coro	459	$coro
348	}	460	}
349		461
350	sub write_runtime {	462	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		463
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	464	Executes the given code block with the given arguments in a seperate
354	or return;	465	process, returning the results. Everything must be serialisable with
		466	Coro::Storable. May, of course, block. Note that the executed sub may
		467	never block itself or use any form of Event handling.
355		468
356	my $value = $cf::RUNTIME + 90 + 10;	469	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		470
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	471	sub _store_scalar {
361	and return;	472	open my $fh, ">", \my $buf
362		473	or die "fork_call: cannot open fh-to-buf in child : $!";
363	aio_fsync $fh	474	Storable::store_fd $_[0], $fh;
364	and return;
365
366	close $fh	475	close $fh;
367	or return;
368		476
369	aio_rename "$runtime~", $runtime	477	$buf
370	and return;	478	}
371		479
		480	sub fork_call(&@) {
		481	my ($cb, @args) = @_;
		482
		483	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		484	# or die "socketpair: $!";
		485	pipe my $fh1, my $fh2
		486	or die "pipe: $!";
		487
		488	if (my $pid = fork) {
		489	close $fh2;
		490
		491	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		492	warn "pst<$res>" unless $res =~ /^pst/;
		493	$res = Coro::Storable::thaw $res;
		494
		495	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		496
		497	Carp::confess $$res unless "ARRAY" eq ref $res;
		498
		499	return wantarray ? @$res : $res->[-1];
		500	} else {
		501	reset_signals;
		502	local $SIG{__WARN__};
		503	local $SIG{__DIE__};
		504	# just in case, this hack effectively disables event
		505	# in the child. cleaner and slower would be canceling all watchers,
		506	# but this works for the time being.
		507	local $Coro::idle;
		508	$Coro::current->prio (Coro::PRIO_MAX);
		509
		510	eval {
		511	close $fh1;
		512
		513	my @res = eval { $cb->(@args) };
		514
		515	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		516	close $fh2;
		517	};
		518
		519	warn $@ if $@;
		520	_exit 0;
372	1	521	}
		522	}
		523
		524	=item $value = cf::db_get $family => $key
		525
		526	Returns a single value from the environment database.
		527
		528	=item cf::db_put $family => $key => $value
		529
		530	Stores the given C<$value> in the family. It can currently store binary
		531	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		532
		533	=cut
		534
		535	our $DB;
		536
		537	sub db_init {
		538	unless ($DB) {
		539	$DB = BDB::db_create $DB_ENV;
		540
		541	cf::sync_job {
		542	eval {
		543	$DB->set_flags (BDB::CHKSUM);
		544
		545	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		546	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		547	cf::cleanup "db_open(db): $!" if $!;
		548	};
		549	cf::cleanup "db_open(db): $@" if $@;
		550	};
		551	}
		552	}
		553
		554	sub db_get($$) {
		555	my $key = "$_[0]/$_[1]";
		556
		557	cf::sync_job {
		558	BDB::db_get $DB, undef, $key, my $data;
		559
		560	$! ? ()
		561	: $data
		562	}
		563	}
		564
		565	sub db_put($$$) {
		566	BDB::dbreq_pri 4;
		567	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		568	}
		569
		570	=item cf::cache $id => [$paths...], $processversion => $process
		571
		572	Generic caching function that returns the value of the resource $id,
		573	caching and regenerating as required.
		574
		575	This function can block.
		576
		577	=cut
		578
		579	sub cache {
		580	my ($id, $src, $processversion, $process) = @_;
		581
		582	my $meta =
		583	join "\x00",
		584	$processversion,
		585	map {
		586	aio_stat $_
		587	and Carp::croak "$_: $!";
		588
		589	($_, (stat _)[7,9])
		590	} @$src;
		591
		592	my $dbmeta = db_get cache => "$id/meta";
		593	if ($dbmeta ne $meta) {
		594	# changed, we may need to process
		595
		596	my @data;
		597	my $md5;
		598
		599	for (0 .. $#$src) {
		600	0 <= aio_load $src->[$_], $data[$_]
		601	or Carp::croak "$src->[$_]: $!";
		602	}
		603
		604	# if processing is expensive, check
		605	# checksum first
		606	if (1) {
		607	$md5 =
		608	join "\x00",
		609	$processversion,
		610	map {
		611	Coro::cede;
		612	($src->[$_], Digest::MD5::md5_hex $data[$_])
		613	} 0.. $#$src;
		614
		615
		616	my $dbmd5 = db_get cache => "$id/md5";
		617	if ($dbmd5 eq $md5) {
		618	db_put cache => "$id/meta", $meta;
		619
		620	return db_get cache => "$id/data";
		621	}
		622	}
		623
		624	my $t1 = Time::HiRes::time;
		625	my $data = $process->(\@data);
		626	my $t2 = Time::HiRes::time;
		627
		628	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		629
		630	db_put cache => "$id/data", $data;
		631	db_put cache => "$id/md5" , $md5;
		632	db_put cache => "$id/meta", $meta;
		633
		634	return $data;
		635	}
		636
		637	db_get cache => "$id/data"
		638	}
		639
		640	=item cf::datalog type => key => value, ...
		641
		642	Log a datalog packet of the given type with the given key-value pairs.
		643
		644	=cut
		645
		646	sub datalog($@) {
		647	my ($type, %kv) = @_;
		648	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	649	}
374		650
375	=back	651	=back
376		652
377	=cut	653	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	660	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	661	to it. All such attachable objects support the following methods.
386		662
387	In the following description, CLASS can be any of C<global>, C<object>	663	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	664	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	665	Crossfire TRT).
390		666
391	=over 4	667	=over 4
392		668
393	=item $attachable->attach ($attachment, key => $value...)	669	=item $attachable->attach ($attachment, key => $value...)
394		670
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	833	$registry = $CB_TYPE[$object_type] ||= [];
558		834
559	} elsif ($type eq "subtype") {	835	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	836	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	837	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	838	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		839
564	} elsif ($type eq "package") {	840	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	841	my $pkg = shift @arg;
566		842
567	while (my ($name, $id) = each %cb_id) {	843	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	872	_attach $registry, $klass, @attach;
597	}	873	}
598		874
599	$obj->{$name} = \%arg;	875	$obj->{$name} = \%arg;
600	} else {	876	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	877	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	878	}
603		879
604	$obj->{_attachment}{$name} = undef;	880	$obj->{_attachment}{$name} = undef;
605	}	881	}
606		882
…		…
608	if (ref $_[0]) {	884	if (ref $_[0]) {
609	_object_attach @_;	885	_object_attach @_;
610	} else {	886	} else {
611	_attach shift->_attach_registry, @_;	887	_attach shift->_attach_registry, @_;
612	}	888	}
		889	_recalc_want;
613	};	890	};
614		891
615	# all those should be optimised	892	# all those should be optimised
616	sub cf::attachable::detach {	893	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	894	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	897	delete $obj->{_attachment}{$name};
621	reattach ($obj);	898	reattach ($obj);
622	} else {	899	} else {
623	Carp::croak "cannot, currently, detach class attachments";	900	Carp::croak "cannot, currently, detach class attachments";
624	}	901	}
		902	_recalc_want;
625	};	903	};
626		904
627	sub cf::attachable::attached {	905	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	906	my ($obj, $name) = @_;
629		907
…		…
644	";	922	";
645	die if $@;	923	die if $@;
646	}	924	}
647		925
648	our $override;	926	our $override;
649	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	927	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
650		928
651	sub override {	929	sub override {
652	$override = 1;	930	$override = 1;
653	@invoke_results = ();	931	@INVOKE_RESULTS = (@_);
654	}	932	}
655		933
656	sub do_invoke {	934	sub do_invoke {
657	my $event = shift;	935	my $event = shift;
658	my $callbacks = shift;	936	my $callbacks = shift;
659		937
660	@invoke_results = ();	938	@INVOKE_RESULTS = ();
661		939
662	local $override;	940	local $override;
663		941
664	for (@$callbacks) {	942	for (@$callbacks) {
665	eval { &{$_->[1]} };	943	eval { &{$_->[1]} };
…		…
682		960
683	Generate an object-specific event with the given arguments.	961	Generate an object-specific event with the given arguments.
684		962
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	963	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	964	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	965	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		966
689	=back	967	=back
690		968
691	=cut	969	=cut
692		970
693	#############################################################################	971	#############################################################################
694	# object support	972	# object support
		973	#
		974
		975	sub _can_merge {
		976	my ($ob1, $ob2) = @_;
		977
		978	local $Storable::canonical = 1;
		979	my $fob1 = Storable::freeze $ob1;
		980	my $fob2 = Storable::freeze $ob2;
		981
		982	$fob1 eq $fob2
		983	}
695		984
696	sub reattach {	985	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	986	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	987	my ($obj) = @_;
699		988
…		…
752	$filename, length $$rdata, scalar @$objs;	1041	$filename, length $$rdata, scalar @$objs;
753		1042
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1043	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1044	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1045	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1046	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1047	close $fh;
759		1048
760	if (@$objs) {	1049	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1050	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1051	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1052	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1053	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1054	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1055	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1056	aio_rename "$filename.pst~", "$filename.pst";
768	}	1057	}
769	} else {	1058	} else {
770	aio_unlink "$filename.pst";	1059	aio_unlink "$filename.pst";
…		…
802	or return;	1091	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1093	}
805		1094
806	warn sprintf "loading %s (%d)\n",	1095	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1096	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	1097	return ($data, $av);
809	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
810		1105
811	#############################################################################	1106	#############################################################################
812	# command handling &c	1107	# command handling &c
813		1108
814	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1123	}
829		1124
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1126
832	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
833		1132
834	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
835	called.	1134	called.
836		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
837	=cut	1147	=cut
838		1148
839	sub register_extcmd {	1149	sub register_extcmd {
840	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
841		1151
842	$EXTCMD{$name} = $cb;	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
843	}	1159	}
844		1160
845	cf::player->attach (	1161	cf::player->attach (
846	on_command => sub {	1162	on_command => sub {
847	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
856	cf::override;	1172	cf::override;
857	},	1173	},
858	on_extcmd => sub {	1174	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
860		1176
861	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1178
863	if (ref $msg) {	1179	if (ref $msg) {
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1180	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
865	if (my %reply = $cb->($pl, $msg)) {	1181	if (my %reply = $cb->($pl, $msg)) {
866	$pl->ext_reply ($msg->{msgid}, %reply);	1182	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
872		1188
873	cf::override;	1189	cf::override;
874	},	1190	},
875	);	1191	);
876		1192
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1193	sub load_extensions {
		1194	cf::sync_job {
		1195	my %todo;
		1196
912	for my $ext (<$LIBDIR/*.ext>) {	1197	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1198	next unless -r $path;
914	eval {	1199
915	load_extension $ext;	1200	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1201	my $base = $1;
		1202	my $pkg = $1;
		1203	$pkg =~ s/[^[:word:]]/_/g;
		1204	$pkg = "ext::$pkg";
		1205
		1206	open my $fh, "<:utf8", $path
		1207	or die "$path: $!";
		1208
		1209	my $source = do { local $/; <$fh> };
		1210
		1211	my %ext = (
		1212	path => $path,
		1213	base => $base,
		1214	pkg => $pkg,
		1215	);
		1216
		1217	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1218	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1219
		1220	$ext{source} =
		1221	"package $pkg; use strict; use utf8;\n"
		1222	. "#line 1 \"$path\"\n{\n"
		1223	. $source
		1224	. "\n};\n1";
		1225
		1226	$todo{$base} = \%ext;
		1227	}
		1228
		1229	my %done;
		1230	while (%todo) {
		1231	my $progress;
		1232
		1233	while (my ($k, $v) = each %todo) {
		1234	for (split /,\s*/, $v->{meta}{depends}) {
		1235	goto skip
		1236	unless exists $done{$_};
		1237	}
		1238
		1239	warn "... loading '$k' into '$v->{pkg}'\n";
		1240
		1241	unless (eval $v->{source}) {
		1242	my $msg = $@ ? "$v->{path}: $@\n"
		1243	: "$v->{base}: extension inactive.\n";
		1244
		1245	if (exists $v->{meta}{mandatory}) {
		1246	warn $msg;
		1247	warn "mandatory extension failed to load, exiting.\n";
		1248	exit 1;
		1249	}
		1250
		1251	warn $msg;
		1252	}
		1253
		1254	$done{$k} = delete $todo{$k};
		1255	push @EXTS, $v->{pkg};
		1256	$progress = 1;
916	1	1257	}
917	} or warn "$ext not loaded: $@";	1258
		1259	skip:
		1260	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1261	unless $progress;
		1262	}
918	}	1263	};
919	}	1264	}
920		1265
921	#############################################################################	1266	#############################################################################
922		1267
		1268	=back
		1269
923	=head2 CORE EXTENSIONS	1270	=head2 CORE EXTENSIONS
924		1271
925	Functions and methods that extend core crossfire objects.	1272	Functions and methods that extend core crossfire objects.
926		1273
927	=cut	1274	=cut
…		…
939	Returns the given player object, loading it if necessary (might block).	1286	Returns the given player object, loading it if necessary (might block).
940		1287
941	=cut	1288	=cut
942		1289
943	sub playerdir($) {	1290	sub playerdir($) {
944	cf::localdir	1291	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1292	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1293	}
950		1294
951	sub path($) {	1295	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1296	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1297
954	(playerdir $login) . "/$login.pl"	1298	(playerdir $login) . "/playerdata"
955	}	1299	}
956		1300
957	sub find_active($) {	1301	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1302	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1303	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1316	my $login = $_[0];
973		1317
974	my $guard = cf::lock_acquire "user_find:$login";	1318	my $guard = cf::lock_acquire "user_find:$login";
975		1319
976	$cf::PLAYER{$_[0]} || do {	1320	$cf::PLAYER{$_[0]} || do {
		1321	# rename old playerfiles to new ones
		1322	#TODO: remove when no longer required
		1323	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1324	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1325	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1326	aio_unlink +(playerdir $login) . "/$login.pl";
		1327
977	my $pl = load_pl path $login	1328	my $pl = load_pl path $login
978	or return;	1329	or return;
979	$cf::PLAYER{$login} = $pl	1330	$cf::PLAYER{$login} = $pl
980	}	1331	}
981	}	1332	}
…		…
1018		1369
1019	=cut	1370	=cut
1020		1371
1021	sub quit_character {	1372	sub quit_character {
1022	my ($pl) = @_;	1373	my ($pl) = @_;
		1374
		1375	my $name = $pl->ob->name;
1023		1376
1024	$pl->{deny_save} = 1;	1377	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1378	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1379
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1380	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1385	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1386	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1387	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1388	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1389	$pl->destroy;
		1390
		1391	my $prefix = qr<^~\Q$name\E/>;
		1392
		1393	# nuke player maps
		1394	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1395
1037	IO::AIO::aio_rmtree $temp;	1396	IO::AIO::aio_rmtree $temp;
		1397	}
		1398
		1399	=item $pl->kick
		1400
		1401	Kicks a player out of the game. This destroys the connection.
		1402
		1403	=cut
		1404
		1405	sub kick {
		1406	my ($pl, $kicker) = @_;
		1407
		1408	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1409	$pl->killer ("kicked");
		1410	$pl->ns->destroy;
1038	}	1411	}
1039		1412
1040	=item cf::player::list_logins	1413	=item cf::player::list_logins
1041		1414
1042	Returns am arrayref of all valid playernames in the system, can take a	1415	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1416	while and may block, so not sync_job-capable, ever.
1044		1417
1045	=cut	1418	=cut
1046		1419
1047	sub list_logins {	1420	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1421	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1422	or return [];
1050		1423
1051	my @logins;	1424	my @logins;
1052		1425
1053	for my $login (@$dirs) {	1426	for my $login (@$dirs) {
…		…
1070	=cut	1443	=cut
1071		1444
1072	sub maps($) {	1445	sub maps($) {
1073	my ($pl) = @_;	1446	my ($pl) = @_;
1074		1447
		1448	$pl = ref $pl ? $pl->ob->name : $pl;
		1449
1075	my $files = aio_readdir playerdir $pl	1450	my $files = aio_readdir playerdir $pl
1076	or return;	1451	or return;
1077		1452
1078	my @paths;	1453	my @paths;
1079		1454
1080	for (@$files) {	1455	for (@$files) {
1081	utf8::decode $_;	1456	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1457	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1458	next unless /^$PATH_SEP/o;
1084		1459
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1460	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1461	}
1087		1462
1088	\@paths	1463	\@paths
1089	}	1464	}
1090		1465
		1466	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1467
		1468	Expand crossfire pod fragments into protocol xml.
		1469
		1470	=cut
		1471
		1472	sub expand_cfpod {
		1473	((my $self), (local $_)) = @_;
		1474
		1475	# escape & and <
		1476	s/&/&amp;/g;
		1477	s/(?<![BIUGH])</&lt;/g;
		1478
		1479	# this is buggy, it needs to properly take care of nested <'s
		1480
		1481	1 while
		1482	# replace B<>, I<>, U<> etc.
		1483	s/B<([^\>]*)>/<b>$1<\/b>/
		1484	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1485	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1486	# replace G<male|female> tags
		1487	|| s{G<([^>|]*)\|([^>]*)>}{
		1488	$self->gender ? $2 : $1
		1489	}ge
		1490	# replace H<hint text>
		1491	|| s{H<([^\>]*)>}
		1492	{
		1493	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1494	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1495	"")
		1496	[$self->{hintmode}]
		1497	}ge;
		1498
		1499	# create single paragraphs (very hackish)
		1500	s/(?<=\S)\n(?=\w)/ /g;
		1501
		1502	# compress some whitespace
		1503	s/\s+\n/\n/g; # ws line-ends
		1504	s/\n\n+/\n/g; # double lines
		1505	s/^\n+//; # beginning lines
		1506	s/\n+$//; # ending lines
		1507
		1508	$_
		1509	}
		1510
		1511	sub hintmode {
		1512	$_[0]{hintmode} = $_[1] if @_ > 1;
		1513	$_[0]{hintmode}
		1514	}
		1515
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1516	=item $player->ext_reply ($msgid, %msg)
1092		1517
1093	Sends an ext reply to the player.	1518	Sends an ext reply to the player.
1094		1519
1095	=cut	1520	=cut
1096		1521
1097	sub ext_reply($$$%) {	1522	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1523	my ($self, $id, %msg) = @_;
1099		1524
1100	$msg{msgid} = $id;	1525	$msg{msgid} = $id;
1101		1526	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1102	$self->send ("ext " . cf::to_json \%msg);
1103	}	1527	}
1104		1528
1105	package cf;	1529	=item $player->ext_event ($type, %msg)
		1530
		1531	Sends an ext event to the client.
		1532
		1533	=cut
		1534
		1535	sub ext_event($$%) {
		1536	my ($self, $type, %msg) = @_;
		1537
		1538	$self->ns->ext_event ($type, %msg);
		1539	}
		1540
		1541	=head3 cf::region
		1542
		1543	=over 4
		1544
		1545	=cut
		1546
		1547	package cf::region;
		1548
		1549	=item cf::region::find_by_path $path
		1550
		1551	Tries to decuce the likely region for a map knowing only its path.
		1552
		1553	=cut
		1554
		1555	sub find_by_path($) {
		1556	my ($path) = @_;
		1557
		1558	my ($match, $specificity);
		1559
		1560	for my $region (list) {
		1561	if ($region->{match} && $path =~ $region->{match}) {
		1562	($match, $specificity) = ($region, $region->specificity)
		1563	if $region->specificity > $specificity;
		1564	}
		1565	}
		1566
		1567	$match
		1568	}
1106		1569
1107	=back	1570	=back
1108
1109		1571
1110	=head3 cf::map	1572	=head3 cf::map
1111		1573
1112	=over 4	1574	=over 4
1113		1575
…		…
1168	my ($self, $merge) = @_;	1630	my ($self, $merge) = @_;
1169		1631
1170	# we have to keep some variables in memory intact	1632	# we have to keep some variables in memory intact
1171	local $self->{path};	1633	local $self->{path};
1172	local $self->{load_path};	1634	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1635
1176	$self->SUPER::thawer_merge ($merge);	1636	$self->SUPER::thawer_merge ($merge);
1177	}	1637	}
1178		1638
1179	sub normalise {	1639	sub normalise {
…		…
1226	$self->init; # pass $1 etc.	1686	$self->init; # pass $1 etc.
1227	return $self;	1687	return $self;
1228	}	1688	}
1229	}	1689	}
1230		1690
1231	Carp::carp "unable to resolve path '$path' (base '$base').";	1691	Carp::cluck "unable to resolve path '$path' (base '$base').";
1232	()	1692	()
1233	}	1693	}
1234		1694
1235	sub init {	1695	sub init {
1236	my ($self) = @_;	1696	my ($self) = @_;
…		…
1251		1711
1252	# the original (read-only) location	1712	# the original (read-only) location
1253	sub load_path {	1713	sub load_path {
1254	my ($self) = @_;	1714	my ($self) = @_;
1255		1715
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1716	"$MAPDIR/$self->{path}.map"
1257	}	1717	}
1258		1718
1259	# the temporary/swap location	1719	# the temporary/swap location
1260	sub save_path {	1720	sub save_path {
1261	my ($self) = @_;	1721	my ($self) = @_;
1262		1722
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1723	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1724	"$TMPDIR/$path.map"
1265	}	1725	}
1266		1726
1267	# the unique path, undef == no special unique path	1727	# the unique path, undef == no special unique path
1268	sub uniq_path {	1728	sub uniq_path {
1269	my ($self) = @_;	1729	my ($self) = @_;
1270		1730
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1731	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1732	"$UNIQUEDIR/$path"
1273	}	1733	}
1274		1734
1275	# and all this just because we cannot iterate over	1735	# and all this just because we cannot iterate over
1276	# all maps in C++...	1736	# all maps in C++...
1277	sub change_all_map_light {	1737	sub change_all_map_light {
…		…
1279		1739
1280	$_->change_map_light ($change)	1740	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1741	for grep $_->outdoor, values %cf::MAP;
1282	}	1742	}
1283		1743
		1744	sub decay_objects {
		1745	my ($self) = @_;
		1746
		1747	return if $self->{deny_reset};
		1748
		1749	$self->do_decay_objects;
		1750	}
		1751
1284	sub unlink_save {	1752	sub unlink_save {
1285	my ($self) = @_;	1753	my ($self) = @_;
1286		1754
1287	utf8::encode (my $save = $self->save_path);	1755	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1756	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1759
1292	sub load_header_from($) {	1760	sub load_header_from($) {
1293	my ($self, $path) = @_;	1761	my ($self, $path) = @_;
1294		1762
1295	utf8::encode $path;	1763	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1764	#aio_open $path, O_RDONLY, 0
1297	or return;	1765	# or return;
1298		1766
1299	$self->_load_header ($path)	1767	$self->_load_header ($path)
1300	or return;	1768	or return;
1301		1769
1302	$self->{load_path} = $path;	1770	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1812	$self->load_header_orig
1345	or return;	1813	or return;
1346	$self->prepare_orig;	1814	$self->prepare_orig;
1347	}	1815	}
1348		1816
		1817	$self->{deny_reset} = 1
		1818	if $self->no_reset;
		1819
		1820	$self->default_region (cf::region::find_by_path $self->{path})
		1821	unless $self->default_region;
		1822
1349	1	1823	1
1350	}	1824	}
1351		1825
1352	sub find;	1826	sub find;
1353	sub find {	1827	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1839	$map->{last_save} = $cf::RUNTIME;
1366		1840
1367	$map->load_header	1841	$map->load_header
1368	or return;	1842	or return;
1369		1843
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1844	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1845	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1846	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1847	$map->reset;
1374	undef $guard;	1848	undef $guard;
1375	return find $path;	1849	return find $path;
…		…
1386	my ($self) = @_;	1860	my ($self) = @_;
1387		1861
1388	local $self->{deny_reset} = 1; # loading can take a long time	1862	local $self->{deny_reset} = 1; # loading can take a long time
1389		1863
1390	my $path = $self->{path};	1864	my $path = $self->{path};
		1865
		1866	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1867	my $guard = cf::lock_acquire "map_load:$path";
1392		1868
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1869	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1870
1395	$self->in_memory (cf::MAP_LOADING);	1871	$self->in_memory (cf::MAP_LOADING);
1396		1872
1397	$self->alloc;	1873	$self->alloc;
1398		1874
1399	$self->pre_load;	1875	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1876	Coro::cede;
1425	$self->set_darkness_map;	1877
		1878	$self->_load_objects ($self->{load_path}, 1)
		1879	or return;
		1880
		1881	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1882	if delete $self->{load_original};
		1883
		1884	if (my $uniq = $self->uniq_path) {
		1885	utf8::encode $uniq;
		1886	if (aio_open $uniq, O_RDONLY, 0) {
		1887	$self->clear_unique_items;
		1888	$self->_load_objects ($uniq, 0);
		1889	}
		1890	}
		1891
		1892	Coro::cede;
		1893	# now do the right thing for maps
		1894	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1895	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1896	unless $self->difficulty;
1428	Coro::cede;	1897	Coro::cede;
		1898
		1899	unless ($self->{deny_activate}) {
		1900	$self->decay_objects;
		1901	$self->fix_auto_apply;
		1902	$self->update_buttons;
		1903	Coro::cede;
		1904	$self->set_darkness_map;
		1905	Coro::cede;
1429	$self->activate;	1906	$self->activate;
		1907	}
		1908
		1909	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1910	}
1431		1911
1432	$self->post_load;	1912	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1913	}
1436		1914
1437	sub customise_for {	1915	sub customise_for {
1438	my ($self, $ob) = @_;	1916	my ($self, $ob) = @_;
1439		1917
1440	return find "~" . $ob->name . "/" . $self->{path}	1918	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
1442		1923
1443	$self	1924	$self
1444	}	1925	}
1445		1926
1446	# find and load all maps in the 3x3 area around a map	1927	# find and load all maps in the 3x3 area around a map
…		…
1493		1974
1494	undef $MAP_PREFETCH{$path};	1975	undef $MAP_PREFETCH{$path};
1495	$MAP_PREFETCHER ||= cf::async {	1976	$MAP_PREFETCHER ||= cf::async {
1496	while (%MAP_PREFETCH) {	1977	while (%MAP_PREFETCH) {
1497	for my $path (keys %MAP_PREFETCH) {	1978	for my $path (keys %MAP_PREFETCH) {
1498	my $map = find $path	1979	if (my $map = find $path) {
1499	or next;
1500	$map->load;	1980	$map->load;
		1981	}
1501		1982
1502	delete $MAP_PREFETCH{$path};	1983	delete $MAP_PREFETCH{$path};
1503	}	1984	}
1504	}	1985	}
1505	undef $MAP_PREFETCHER;	1986	undef $MAP_PREFETCHER;
…		…
1557		2038
1558	sub reset_at {	2039	sub reset_at {
1559	my ($self) = @_;	2040	my ($self) = @_;
1560		2041
1561	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1564		2044
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2047
…		…
1578	my ($self) = @_;	2058	my ($self) = @_;
1579		2059
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		2061
1582	return if $self->players;	2062	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		2063
1585	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
		2065
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067
		2068	# need to save uniques path
		2069	unless ($self->{deny_save}) {
		2070	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2071
		2072	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2073	if $uniq;
		2074	}
1586		2075
1587	delete $cf::MAP{$self->path};	2076	delete $cf::MAP{$self->path};
1588		2077
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	2078	$self->clear;
1591		2079
1592	$_->clear_links_to ($self) for values %cf::MAP;	2080	$_->clear_links_to ($self) for values %cf::MAP;
1593		2081
1594	$self->unlink_save;	2082	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	2101	$cf::MAP{$self->path} = $self;
1614		2102
1615	$self->reset; # polite request, might not happen	2103	$self->reset; # polite request, might not happen
1616	}	2104	}
1617		2105
		2106	=item $maps = cf::map::tmp_maps
		2107
		2108	Returns an arrayref with all map paths of currently instantiated and saved
		2109	maps. May block.
		2110
		2111	=cut
		2112
		2113	sub tmp_maps() {
		2114	[
		2115	map {
		2116	utf8::decode $_;
		2117	/\.map$/
		2118	? normalise $_
		2119	: ()
		2120	} @{ aio_readdir $TMPDIR or [] }
		2121	]
		2122	}
		2123
		2124	=item $maps = cf::map::random_maps
		2125
		2126	Returns an arrayref with all map paths of currently instantiated and saved
		2127	random maps. May block.
		2128
		2129	=cut
		2130
		2131	sub random_maps() {
		2132	[
		2133	map {
		2134	utf8::decode $_;
		2135	/\.map$/
		2136	? normalise "?random/$_"
		2137	: ()
		2138	} @{ aio_readdir $RANDOMDIR or [] }
		2139	]
		2140	}
		2141
1618	=item cf::map::unique_maps	2142	=item cf::map::unique_maps
1619		2143
1620	Returns an arrayref of paths of all shared maps that have	2144	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2145	instantiated unique items. May block.
1622		2146
1623	=cut	2147	=cut
1624		2148
1625	sub unique_maps() {	2149	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2150	[
1627	or return;	2151	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2152	utf8::decode $_;
1633	next if /\.pst$/;	2153	/\.map$/
1634	next unless /^$PATH_SEP/o;	2154	? normalise $_
1635		2155	: ()
1636	push @paths, cf::map::normalise $_;	2156	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2157	]
1638
1639	\@paths
1640	}	2158	}
1641		2159
1642	package cf;	2160	package cf;
1643		2161
1644	=back	2162	=back
…		…
1690		2208
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2209	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2210
1693	if ($self->{record_replies}) {	2211	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2212	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2213
1695	} else {	2214	} else {
		2215	my $pl = $self->contr;
		2216
		2217	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2218	my $diag = $pl->{npc_dialog};
		2219	$diag->{pl}->ext_reply (
		2220	$diag->{id},
		2221	msgtype => "reply",
		2222	msg => $diag->{pl}->expand_cfpod ($msg),
		2223	add_topics => []
		2224	);
		2225
		2226	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1698	}	2230	}
1699	}	2231	}
1700		2232
1701	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1702		2234
…		…
1750	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1751		2283
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2285
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1756		2288
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2290	}
1759		2291
1760	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1762		2296
1763	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1764		2298
1765	unless ($map) {	2299	unless ($map) {
1766	# restore original map position	2300	# restore original map position
…		…
1784	$map->load;	2318	$map->load;
1785	$map->load_diag;	2319	$map->load_diag;
1786		2320
1787	return unless $self->contr->active;	2321	return unless $self->contr->active;
1788	$self->activate_recursive;	2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1790	}	2326	}
1791		2327
1792	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1793	on_logout => sub {
1794	my ($pl) = @_;
1795		2329
1796	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1797	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1798	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1799	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1800	};	2334	be called at the end of this process.
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805		2335
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)
1825
1826	=cut	2336	=cut
		2337
		2338	our $GOTOGEN;
1827		2339
1828	sub cf::object::player::goto {	2340	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2345
1831	$self->enter_link;	2346	$self->enter_link;
1832		2347
1833	(async {	2348	(async {
1834	my $map = eval {	2349	my $map = eval {
1835	my $map = cf::map::find $path;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
		2354	$map = $check->($map) if $check && $map;
		2355	} else {
		2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
		2358
1837	$map	2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2365	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1842	})->prio (1);	2373	})->prio (1);
1843	}	2374	}
1844		2375
1845	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1846		2377
…		…
1885		2416
1886	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1887		2418
1888	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2421	my $meta = "$RANDOMDIR/$md5.meta";
1891		2422
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2425	undef $fh;
1895	aio_rename "$meta~", $meta;	2426	aio_rename "$meta~", $meta;
…		…
1904		2435
1905	return unless $self->type == cf::PLAYER;	2436	return unless $self->type == cf::PLAYER;
1906		2437
1907	if ($exit->slaying eq "/!") {	2438	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2442	cf::sync_job { prepare_random_map $exit };
1910	}	2443	}
1911		2444
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2446	my $hp = $exit->stats->hp;
1914	my $sp = $exit->stats->sp;	2447	my $sp = $exit->stats->sp;
1915		2448
1916	$self->enter_link;	2449	$self->enter_link;
		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
1917		2454
1918	(async {	2455	(async {
1919	$self->deactivate_recursive; # just to be sure	2456	$self->deactivate_recursive; # just to be sure
1920	unless (eval {	2457	unless (eval {
1921	$self->goto ($slaying, $hp, $sp);	2458	$self->goto ($slaying, $hp, $sp);
1922		2459
1923	1;	2460	1;
1924	}) {	2461	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2462	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2463	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2464	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2465	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2466
1930	warn "ERROR in enter_exit: $@";	2467	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2468	$self->leave_link;
1932	}	2469	}
1933	})->prio (1);	2470	})->prio (1);
…		…
1946		2483
1947	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
1949		2486
1950	utf8::encode $text;	2487	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2489	}
1953		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= ~cf::NDI_UNIQUE; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_event (channel_info => %$channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2521	} else {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	if ($color >= 0) {
		2533	if (0 && $msg =~ /\[/) {
		2534	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2535	} else {
		2536	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2537	$self->send_packet ("drawinfo $color $msg")
		2538	}
		2539	}
		2540	}
		2541	}
		2542
		2543	=item $client->ext_event ($type, %msg)
		2544
		2545	Sends an ext event to the client.
		2546
		2547	=cut
		2548
		2549	sub cf::client::ext_event($$%) {
		2550	my ($self, $type, %msg) = @_;
		2551
		2552	return unless $self->extcmd;
		2553
		2554	$msg{msgtype} = "event_$type";
		2555	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2556	}
1954		2557
1955	=item $success = $client->query ($flags, "text", \&cb)	2558	=item $success = $client->query ($flags, "text", \&cb)
1956		2559
1957	Queues a query to the client, calling the given callback with	2560	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2561	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2562	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2563
1961	Queries can fail, so check the return code. Or don't, as queries will become	2564	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2565	become reliable at some point in the future.
1963		2566
1964	=cut	2567	=cut
1965		2568
1966	sub cf::client::query {	2569	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2570	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2578	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2579	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2580
1978	$self->send_packet ($self->{query_queue}[0][0])	2581	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2582	if @{ $self->{query_queue} } == 1;
		2583
		2584	1
1980	}	2585	}
1981		2586
1982	cf::client->attach (	2587	cf::client->attach (
		2588	on_connect => sub {
		2589	my ($ns) = @_;
		2590
		2591	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2592	},
1983	on_reply => sub {	2593	on_reply => sub {
1984	my ($ns, $msg) = @_;	2594	my ($ns, $msg) = @_;
1985		2595
1986	# this weird shuffling is so that direct followup queries	2596	# this weird shuffling is so that direct followup queries
1987	# get handled first	2597	# get handled first
1988	my $queue = delete $ns->{query_queue}	2598	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2599	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2600
1991	(shift @$queue)->[1]->($msg);	2601	(shift @$queue)->[1]->($msg);
		2602	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2603
1993	push @{ $ns->{query_queue} }, @$queue;	2604	push @{ $ns->{query_queue} }, @$queue;
1994		2605
1995	if (@{ $ns->{query_queue} } == @$queue) {	2606	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2607	if (@$queue) {
…		…
1998	} else {	2609	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2610	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2611	}
2001	}	2612	}
2002	},	2613	},
		2614	on_exticmd => sub {
		2615	my ($ns, $buf) = @_;
		2616
		2617	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2618
		2619	if (ref $msg) {
		2620	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2621	if (my %reply = $cb->($ns, $msg)) {
		2622	$reply{msgid} = $msg->{msgid};
		2623	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2624	}
		2625	}
		2626	} else {
		2627	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2628	}
		2629
		2630	cf::override;
		2631	},
2003	);	2632	);
2004		2633
2005	=item $client->async (\&cb)	2634	=item $client->async (\&cb)
2006		2635
2007	Create a new coroutine, running the specified callback. The coroutine will	2636	Create a new coroutine, running the specified callback. The coroutine will
…		…
2054		2683
2055	# here we export the classes and methods available to script code	2684	# here we export the classes and methods available to script code
2056		2685
2057	=pod	2686	=pod
2058		2687
2059	The following fucntions and emthods are available within a safe environment:	2688	The following functions and methods are available within a safe environment:
2060		2689
2061	cf::object contr pay_amount pay_player map	2690	cf::object
		2691	contr pay_amount pay_player map x y force_find force_add
		2692	insert remove
		2693
2062	cf::object::player player	2694	cf::object::player
2063	cf::player peaceful	2695	player
2064	cf::map trigger	2696
		2697	cf::player
		2698	peaceful
		2699
		2700	cf::map
		2701	trigger
2065		2702
2066	=cut	2703	=cut
2067		2704
2068	for (	2705	for (
2069	["cf::object" => qw(contr pay_amount pay_player map)],	2706	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2707	insert remove)],
2070	["cf::object::player" => qw(player)],	2708	["cf::object::player" => qw(player)],
2071	["cf::player" => qw(peaceful)],	2709	["cf::player" => qw(peaceful)],
2072	["cf::map" => qw(trigger)],	2710	["cf::map" => qw(trigger)],
2073	) {	2711	) {
2074	no strict 'refs';	2712	no strict 'refs';
…		…
2145	=back	2783	=back
2146		2784
2147	=cut	2785	=cut
2148		2786
2149	#############################################################################	2787	#############################################################################
		2788	# the server's init and main functions
2150		2789
2151	=head2 EXTENSION DATABASE SUPPORT	2790	sub load_facedata($) {
		2791	my ($path) = @_;
2152		2792
2153	Crossfire maintains a very simple database for extension use. It can	2793	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2794
2157	The parameter C<$family> should best start with the name of the extension	2795	my $facedata;
2158	using it, it should be unique.	2796	0 < aio_load $path, $facedata
		2797	or die "$path: $!";
2159		2798
2160	=over 4	2799	$facedata = Coro::Storable::thaw $facedata;
2161		2800
2162	=item $hashref = cf::db_get $family	2801	$facedata->{version} == 2
		2802	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2803
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key
2169
2170	Returns a single value from the database
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	2804	{
		2805	my $faces = $facedata->{faceinfo};
2200		2806
2201	my $pid;	2807	while (my ($face, $info) = each %$faces) {
		2808	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2809	cf::face::set_visibility $idx, $info->{visibility};
		2810	cf::face::set_magicmap $idx, $info->{magicmap};
		2811	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2812	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2202		2813
2203	sub db_save() {	2814	cf::cede_to_tick;
2204	waitpid $pid, 0 if $pid;
2205	if (0 == ($pid = fork)) {
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}
2212
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2815	}
2254	);
2255	}
2256		2816
2257	#############################################################################	2817	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2818	next unless $info->{smooth};
		2819	my $idx = cf::face::find $face
		2820	or next;
		2821	if (my $smooth = cf::face::find $info->{smooth}) {
		2822	cf::face::set_smooth $idx, $smooth;
		2823	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2824	} else {
		2825	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2826	}
		2827
		2828	cf::cede_to_tick;
		2829	}
		2830	}
		2831
		2832	{
		2833	my $anims = $facedata->{animinfo};
		2834
		2835	while (my ($anim, $info) = each %$anims) {
		2836	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2837	cf::cede_to_tick;
		2838	}
		2839
		2840	cf::anim::invalidate_all; # d'oh
		2841	}
		2842
		2843	{
		2844	# TODO: for gcfclient pleasure, we should give resources
		2845	# that gcfclient doesn't grok a >10000 face index.
		2846	my $res = $facedata->{resource};
		2847	my $enc = JSON::XS->new->utf8->canonical;
		2848
		2849	while (my ($name, $info) = each %$res) {
		2850	my $meta = $enc->encode ({
		2851	name => $name,
		2852	type => $info->{type},
		2853	copyright => $info->{copyright}, #TODO#
		2854	});
		2855
		2856	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2857
		2858	if ($name =~ /\.jpg$/) {
		2859	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2860	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2861	} else {
		2862	my $data = pack "(w/a*)*", $meta, $info->{data};
		2863	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2864
		2865	cf::face::set_type $idx, 1;
		2866	cf::face::set_data $idx, 0, $data, $chk;
		2867	}
		2868
		2869	cf::cede_to_tick;
		2870	}
		2871	}
		2872
		2873	1
		2874	}
		2875
		2876	sub reload_regions {
		2877	load_resource_file "$MAPDIR/regions"
		2878	or die "unable to load regions file\n";
		2879
		2880	for (cf::region::list) {
		2881	$_->{match} = qr/$_->{match}/
		2882	if exists $_->{match};
		2883	}
		2884	}
		2885
		2886	sub reload_facedata {
		2887	load_facedata "$DATADIR/facedata"
		2888	or die "unable to load facedata\n";
		2889	}
		2890
		2891	sub reload_archetypes {
		2892	load_resource_file "$DATADIR/archetypes"
		2893	or die "unable to load archetypes\n";
		2894	#d# NEED to laod twice to resolve forward references
		2895	# this really needs to be done in an extra post-pass
		2896	# (which needs to be synchronous, so solve it differently)
		2897	load_resource_file "$DATADIR/archetypes"
		2898	or die "unable to load archetypes\n";
		2899	}
		2900
		2901	sub reload_treasures {
		2902	load_resource_file "$DATADIR/treasures"
		2903	or die "unable to load treasurelists\n";
		2904	}
		2905
		2906	sub reload_resources {
		2907	warn "reloading resource files...\n";
		2908
		2909	reload_regions;
		2910	reload_facedata;
		2911	#reload_archetypes;#d#
		2912	reload_archetypes;
		2913	reload_treasures;
		2914
		2915	warn "finished reloading resource files\n";
		2916	}
		2917
		2918	sub init {
		2919	reload_resources;
		2920	}
2259		2921
2260	sub cfg_load {	2922	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2923	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2924	or return;
2263		2925
2264	local $/;	2926	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2927	*CFG = YAML::Syck::Load <$fh>;
2266		2928
…		…
2286	Event::one_event;	2948	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2949	})->prio (Coro::PRIO_MAX);
2288	};	2950	};
2289		2951
2290	cfg_load;	2952	cfg_load;
2291	db_load;	2953	db_init;
2292	load_extensions;	2954	load_extensions;
2293		2955
2294	$TICK_WATCHER->start;	2956	$TICK_WATCHER->start;
2295	Event::loop;	2957	Event::loop;
2296	}	2958	}
…		…
2311	},	2973	},
2312	);	2974	);
2313	}	2975	}
2314	}	2976	}
2315		2977
		2978	sub write_runtime {
		2979	my $runtime = "$LOCALDIR/runtime";
		2980
		2981	# first touch the runtime file to show we are still running:
		2982	# the fsync below can take a very very long time.
		2983
		2984	IO::AIO::aio_utime $runtime, undef, undef;
		2985
		2986	my $guard = cf::lock_acquire "write_runtime";
		2987
		2988	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2989	or return;
		2990
		2991	my $value = $cf::RUNTIME + 90 + 10;
		2992	# 10 is the runtime save interval, for a monotonic clock
		2993	# 60 allows for the watchdog to kill the server.
		2994
		2995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2996	and return;
		2997
		2998	# always fsync - this file is important
		2999	aio_fsync $fh
		3000	and return;
		3001
		3002	# touch it again to show we are up-to-date
		3003	aio_utime $fh, undef, undef;
		3004
		3005	close $fh
		3006	or return;
		3007
		3008	aio_rename "$runtime~", $runtime
		3009	and return;
		3010
		3011	warn "runtime file written.\n";
		3012
		3013	1
		3014	}
		3015
2316	sub emergency_save() {	3016	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	3017	my $freeze_guard = cf::freeze_mainloop;
2318		3018
2319	warn "enter emergency perl save\n";	3019	warn "enter emergency perl save\n";
2320		3020
…		…
2335	my $map = $cf::MAP{$path} or next;	3035	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	3036	$map->valid or next;
2337	$map->save;	3037	$map->save;
2338	}	3038	}
2339	warn "end emergency map save\n";	3039	warn "end emergency map save\n";
		3040
		3041	warn "begin emergency database checkpoint\n";
		3042	BDB::db_env_txn_checkpoint $DB_ENV;
		3043	warn "end emergency database checkpoint\n";
2340	};	3044	};
2341		3045
2342	warn "leave emergency perl save\n";	3046	warn "leave emergency perl save\n";
2343	}	3047	}
2344		3048
		3049	sub post_cleanup {
		3050	my ($make_core) = @_;
		3051
		3052	warn Carp::longmess "post_cleanup backtrace"
		3053	if $make_core;
		3054	}
		3055
2345	sub reload() {	3056	sub do_reload_perl() {
2346	# can/must only be called in main	3057	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	3058	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	3059	warn "can only reload from main coroutine";
2349	return;	3060	return;
2350	}	3061	}
2351		3062
2352	warn "reloading...";	3063	warn "reloading...";
2353		3064
2354	warn "cancelling server ticker";	3065	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		3066
		3067	cf::sync_job {
		3068	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	3069	cf::emergency_save;
		3070	cf::write_runtime; # external watchdog should not bark
2358		3071
2359	eval {	3072	warn "syncing database to disk";
		3073	BDB::db_env_txn_checkpoint $DB_ENV;
		3074
2360	# if anything goes wrong in here, we should simply crash as we already saved	3075	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		3076
2365	warn "cancelling all WF_AUTOCANCEL watchers";	3077	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	3078	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	3079	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	3080	}
2369		3081
2370	warn "flushing outstanding aio requests";	3082	warn "flushing outstanding aio requests";
2371	for (;;) {	3083	for (;;) {
		3084	BDB::flush;
2372	IO::AIO::flush;	3085	IO::AIO::flush;
2373	Coro::cede;	3086	Coro::cede;
2374	last unless IO::AIO::nreqs;	3087	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	3088	warn "iterate...";
2376	}	3089	}
		3090
		3091	++$RELOAD;
2377		3092
2378	warn "cancelling all extension coros";	3093	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	3094	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	3095	%EXT_CORO = ();
2381		3096
2382	warn "removing commands";	3097	warn "removing commands";
2383	%COMMAND = ();	3098	%COMMAND = ();
2384		3099
2385	warn "removing ext commands";	3100	warn "removing ext/exti commands";
2386	%EXTCMD = ();	3101	%EXTCMD = ();
		3102	%EXTICMD = ();
2387		3103
2388	warn "unloading/nuking all extensions";	3104	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	3105	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	3106	warn "... unloading $pkg";
2391		3107
…		…
2421	Symbol::delete_package "safe::$_"	3137	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3138	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		3139
2424	warn "unloading cf.pm \"a bit\"";	3140	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	3141	delete $INC{"cf.pm"};
		3142	delete $INC{"cf/pod.pm"};
2426		3143
2427	# don't, removes xs symbols, too,	3144	# don't, removes xs symbols, too,
2428	# and global variables created in xs	3145	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	3146	#Symbol::delete_package __PACKAGE__;
2430		3147
…		…
2434	require cf;	3151	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3152	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		3153
2437	warn "loading config and database again";	3154	warn "loading config and database again";
2438	cf::cfg_load;	3155	cf::cfg_load;
2439	cf::db_load;
2440		3156
2441	warn "loading extensions";	3157	warn "loading extensions";
2442	cf::load_extensions;	3158	cf::load_extensions;
2443		3159
2444	warn "reattaching attachments to objects/players";	3160	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3161	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3162	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3163	reattach $_ for values %MAP;
		3164	warn "reattaching attachments to players";
		3165	reattach $_ for values %PLAYER;
2448		3166
2449	warn "restarting server ticker";	3167	warn "leaving sync_job";
2450		3168
2451	$TICK_WATCHER->start;	3169	1
2452	};	3170	} or do {
2453
2454	if ($@) {
2455	warn $@;	3171	warn $@;
2456	warn "error while reloading, exiting.";	3172	warn "error while reloading, exiting.";
2457	exit 1;	3173	exit 1;
2458	}	3174	};
2459		3175
2460	warn "reloaded";	3176	warn "reloaded";
2461	};	3177	};
2462		3178
2463	our $RELOAD_WATCHER; # used only during reload	3179	our $RELOAD_WATCHER; # used only during reload
2464		3180
		3181	sub reload_perl() {
		3182	# doing reload synchronously and two reloads happen back-to-back,
		3183	# coro crashes during coro_state_free->destroy here.
		3184
		3185	$RELOAD_WATCHER ||= Event->timer (
		3186	reentrant => 0,
		3187	after => 0,
		3188	data => WF_AUTOCANCEL,
		3189	cb => sub {
		3190	do_reload_perl;
		3191	undef $RELOAD_WATCHER;
		3192	},
		3193	);
		3194	}
		3195
2465	register_command "reload" => sub {	3196	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3197	my ($who, $arg) = @_;
2467		3198
2468	if ($who->flag (FLAG_WIZ)) {	3199	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3200	$who->message ("reloading server.");
2470		3201	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	3202	}
2484	};	3203	};
2485		3204
2486	unshift @INC, $LIBDIR;	3205	unshift @INC, $LIBDIR;
2487		3206
2488	my $bug_warning = 0;	3207	my $bug_warning = 0;
2489		3208
		3209	our @WAIT_FOR_TICK;
		3210	our @WAIT_FOR_TICK_BEGIN;
		3211
		3212	sub wait_for_tick {
		3213	return unless $TICK_WATCHER->is_active;
		3214	return if $Coro::current == $Coro::main;
		3215
		3216	my $signal = new Coro::Signal;
		3217	push @WAIT_FOR_TICK, $signal;
		3218	$signal->wait;
		3219	}
		3220
		3221	sub wait_for_tick_begin {
		3222	return unless $TICK_WATCHER->is_active;
		3223	return if $Coro::current == $Coro::main;
		3224
		3225	my $signal = new Coro::Signal;
		3226	push @WAIT_FOR_TICK_BEGIN, $signal;
		3227	$signal->wait;
		3228	}
		3229
		3230	my $min = 1e6;#d#
		3231	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	3232	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	3233	reentrant => 0,
2492	parked => 1,	3234	parked => 1,
2493	prio => 0,	3235	prio => 0,
2494	at => $NEXT_TICK || $TICK,	3236	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3240	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3241	unless ++$bug_warning > 10;
2500	return;	3242	return;
2501	}	3243	}
2502		3244
2503	$NOW = Event::time;	3245	$NOW = $tick_start = Event::time;
2504		3246
2505	cf::server_tick; # one server iteration	3247	cf::server_tick; # one server iteration
		3248
		3249	0 && sync_job {#d#
		3250	for(1..10) {
		3251	my $t = Event::time;
		3252	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3253	or die;
		3254
		3255	$map->width (50);
		3256	$map->height (50);
		3257	$map->alloc;
		3258	$map->_load_objects ("/tmp/x.map", 1);
		3259	my $t = Event::time - $t;
		3260
		3261	#next unless $t < 0.0013;#d#
		3262	if ($t < $min) {
		3263	$min = $t;
		3264	}
		3265	$avg = $avg * 0.99 + $t * 0.01;
		3266	}
		3267	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3268	exit 0;
		3269	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3270	};
		3271
2506	$RUNTIME += $TICK;	3272	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3273	$NEXT_TICK += $TICK;
2508		3274
2509	$WAIT_FOR_TICK->broadcast;	3275	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3276	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3277	Coro::async_pool {
2512	Event::sweep;	3278	write_runtime
2513	Coro::cede_notself;	3279	or warn "ERROR: unable to write runtime file: $!";
		3280	};
2514		3281	}
		3282
2515	# my $AFTER = Event::time;	3283	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	3284	# warn $AFTER - $NOW;#d#
2517		3285
		3286	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3287	$sig->send;
		3288	}
		3289	while (my $sig = shift @WAIT_FOR_TICK) {
		3290	$sig->send;
		3291	}
		3292
		3293	$NOW = Event::time;
		3294
2518	# if we are delayed by four ticks or more, skip them all	3295	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3296	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		3297
2521	$TICK_WATCHER->at ($NEXT_TICK);	3298	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	3299	$TICK_WATCHER->start;
		3300
		3301	$LOAD = ($NOW - $tick_start) / $TICK;
		3302	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3303
		3304	_post_tick;
		3305
		3306
2523	},	3307	},
2524	);	3308	);
2525		3309
		3310	{
		3311	BDB::max_poll_time $TICK * 0.1;
		3312	$BDB_POLL_WATCHER = Event->io (
		3313	reentrant => 0,
		3314	fd => BDB::poll_fileno,
		3315	poll => 'r',
		3316	prio => 0,
		3317	data => WF_AUTOCANCEL,
		3318	cb => \&BDB::poll_cb,
		3319	);
		3320	BDB::min_parallel 8;
		3321
		3322	BDB::set_sync_prepare {
		3323	my $status;
		3324	my $current = $Coro::current;
		3325	(
		3326	sub {
		3327	$status = $!;
		3328	$current->ready; undef $current;
		3329	},
		3330	sub {
		3331	Coro::schedule while defined $current;
		3332	$! = $status;
		3333	},
		3334	)
		3335	};
		3336
		3337	unless ($DB_ENV) {
		3338	$DB_ENV = BDB::db_env_create;
		3339
		3340	cf::sync_job {
		3341	eval {
		3342	BDB::db_env_open
		3343	$DB_ENV,
		3344	$BDBDIR,
		3345	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3346	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3347	0666;
		3348
		3349	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3350
		3351	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3352	$DB_ENV->set_lk_detect;
		3353	};
		3354
		3355	cf::cleanup "db_env_open(db): $@" if $@;
		3356	};
		3357	}
		3358	}
		3359
		3360	{
		3361	IO::AIO::min_parallel 8;
		3362
		3363	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3364	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3365	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3366	reentrant => 0,
		3367	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3368	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3369	poll => 'r',
2533	prio => 6,	3370	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3371	cb => \&IO::AIO::poll_cb,
2536	);	3372	);
		3373	}
2537		3374
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3375	my $_log_backtrace;
2539	reentrant => 0,	3376
2540	data => WF_AUTOCANCEL,	3377	sub _log_backtrace {
2541	after => 1,	3378	my ($msg, @addr) = @_;
2542	interval => 10,	3379
2543	prio => 6, # keep it lowest so it acts like a watchdog	3380	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3381
2545	write_runtime	3382	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3383	if ($_log_backtrace < 2) {
		3384	++$_log_backtrace;
		3385	async {
		3386	my @bt = fork_call {
		3387	@addr = map { sprintf "%x", $_ } @addr;
		3388	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3389	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3390	or die "addr2line: $!";
		3391
		3392	my @funcs;
		3393	my @res = <$fh>;
		3394	chomp for @res;
		3395	while (@res) {
		3396	my ($func, $line) = splice @res, 0, 2, ();
		3397	push @funcs, "[$func] $line";
		3398	}
		3399
		3400	@funcs
		3401	};
		3402
		3403	LOG llevInfo, "[ABT] $msg\n";
		3404	LOG llevInfo, "[ABT] $_\n" for @bt;
		3405	--$_log_backtrace;
		3406	};
		3407	} else {
		3408	LOG llevInfo, "[ABT] $msg\n";
		3409	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3410	}
2548	);	3411	}
		3412
		3413	# load additional modules
		3414	use cf::pod;
2549		3415
2550	END { cf::emergency_save }	3416	END { cf::emergency_save }
2551		3417
2552	1	3418	1
2553		3419

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