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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.206 by root, Sun Feb 11 22:27:05 2007 UTC vs.
Revision 1.322 by root, Fri Jul 27 10:10:51 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 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
27		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
28	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
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		43
32	# 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?
33	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
34		46
35	$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
36		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
37	our %COMMAND = ();	51	our %COMMAND = ();
38	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
39		53
40	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
44		59
		60	our $RELOAD; # number of reloads so far
45	our @EVENT;	61	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		62
48	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(!)
49	our $TICK_WATCHER;	76	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	79	our $NEXT_TICK;
53	our $NOW;	80	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		82
56	our $BDB_POLL_WATCHER;	83	our $BDB_POLL_WATCHER;
…		…
62	our $RUNTIME;	89	our $RUNTIME;
63		90
64	our %PLAYER; # all users	91	our %PLAYER; # all users
65	our %MAP; # all maps	92	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		94
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $tick_start; # for load detecting purposes
		101
76	binmode STDOUT;	102	binmode STDOUT;
77	binmode STDERR;	103	binmode STDERR;
78		104
79	# read virtual server time, if available	105	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
84	}	110	}
85		111
86	mkdir cf::localdir;	112	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		114
93	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
94		116
95	sub cf::map::normalise;	117	sub cf::map::normalise;
96		118
…		…
107	=item $cf::RUNTIME	129	=item $cf::RUNTIME
108		130
109	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
110	every server tick.	132	every server tick.
111		133
112	=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
113		137
114	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		142
117	=item $cf::NOW	143	=item $cf::NOW
118		144
119	The time of the last (current) server tick.	145	The time of the last (current) server tick.
120		146
121	=item $cf::TICK	147	=item $cf::TICK
122		148
123	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.
124		160
125	=item %cf::CFG	161	=item %cf::CFG
126		162
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
128	from wherever your confdir points to.	164	from wherever your confdir points to.
129		165
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		167
132	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
133	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
134	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.
135	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.
136		177
137	=back	178	=back
138		179
139	=cut	180	=cut
140		181
141	BEGIN {	182	BEGIN {
142	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	184	my $msg = join "", @_;
144	utf8::encode $msg;
145		185
146	$msg .= "\n"	186	$msg .= "\n"
147	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
148		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
149	LOG llevError, $msg;	192	LOG llevError, $msg;
150	};	193	};
151	}	194	}
152		195
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@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';
158	@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)
159		203
160	# 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
161	# within the Safe compartment.	205	# within the Safe compartment.
162	for my $pkg (qw(	206	for my $pkg (qw(
163	cf::global cf::attachable	207	cf::global cf::attachable
…		…
171	}	215	}
172		216
173	$Event::DIED = sub {	217	$Event::DIED = sub {
174	warn "error in event callback: @_";	218	warn "error in event callback: @_";
175	};	219	};
		220
		221	#############################################################################
176		222
177	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
178		224
179	=over 4	225	=over 4
180		226
…		…
199	$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;
200	$d	246	$d
201	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
202	}	248	}
203		249
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
207		251
208	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
209		253
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
218		255
219	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
220		257
221	=cut	258	=cut
222		259
223	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
225	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
226	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
227		264
228	=item cf::lock_wait $string	265	=item cf::lock_wait $string
229		266
230	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
231		268
…		…
237	returned.	274	returned.
238		275
239	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
240	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
241		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
242	=cut	283	=cut
243		284
244	our %LOCK;	285	our %LOCK;
245		286
246	sub lock_wait($) {	287	sub lock_wait($) {
…		…
265	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
267	}	308	}
268	}	309	}
269		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
270	sub freeze_mainloop {	317	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
272		319
273	my $guard = Coro::guard {	320	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	322	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
279	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		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<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
280	}	381	}
281		382
282	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
283		384
284	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		390
290	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
291		392
292	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
293		394
294	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
297		399
298	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
301	fast or be very important.	403	fast or be very important.
…		…
304		406
305	sub sync_job(&) {	407	sub sync_job(&) {
306	my ($job) = @_;	408	my ($job) = @_;
307		409
308	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
309	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
311		415
312	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
324		428
325	while ($busy) {	429	while ($busy) {
326	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
327	}	431	}
328		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
329	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
330	} else {	441	} else {
331	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
332		443
333	$job->()	444	$job->()
…		…
352	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
353		464
354	$coro	465	$coro
355	}	466	}
356		467
357	sub write_runtime {	468	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		469
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
361	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
362		474
363	my $value = $cf::RUNTIME + 90 + 10;	475	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		476
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	477	sub _store_scalar {
368	and return;	478	open my $fh, ">", \my $buf
369		479	or die "fork_call: cannot open fh-to-buf in child : $!";
370	# always fsync - this file is important	480	Storable::store_fd $_[0], $fh;
371	aio_fsync $fh
372	and return;
373
374	close $fh	481	close $fh;
375	or return;
376		482
377	aio_rename "$runtime~", $runtime	483	$buf
378	and return;	484	}
379		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
380	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	655	}
382		656
383	=back	657	=back
384		658
385	=cut	659	=cut
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
394		668
395	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	671	Crossfire TRT).
398		672
399	=over 4	673	=over 4
400		674
401	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
402		676
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
566		840
567	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		845
572	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	847	my $pkg = shift @arg;
574		848
575	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
605	}	879	}
606		880
607	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
608	} else {	882	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	884	}
611		885
612	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
613	}	887	}
614		888
…		…
616	if (ref $_[0]) {	890	if (ref $_[0]) {
617	_object_attach @_;	891	_object_attach @_;
618	} else {	892	} else {
619	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
620	}	894	}
		895	_recalc_want;
621	};	896	};
622		897
623	# all those should be optimised	898	# all those should be optimised
624	sub cf::attachable::detach {	899	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
629	reattach ($obj);	904	reattach ($obj);
630	} else {	905	} else {
631	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
632	}	907	}
		908	_recalc_want;
633	};	909	};
634		910
635	sub cf::attachable::attached {	911	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
637		913
…		…
652	";	928	";
653	die if $@;	929	die if $@;
654	}	930	}
655		931
656	our $override;	932	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		934
659	sub override {	935	sub override {
660	$override = 1;	936	$override = 1;
661	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
662	}	938	}
663		939
664	sub do_invoke {	940	sub do_invoke {
665	my $event = shift;	941	my $event = shift;
666	my $callbacks = shift;	942	my $callbacks = shift;
667		943
668	@invoke_results = ();	944	@INVOKE_RESULTS = ();
669		945
670	local $override;	946	local $override;
671		947
672	for (@$callbacks) {	948	for (@$callbacks) {
673	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
690		966
691	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
692		968
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		972
697	=back	973	=back
698		974
699	=cut	975	=cut
700		976
701	#############################################################################	977	#############################################################################
702	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
703		990
704	sub reattach {	991	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	993	my ($obj) = @_;
707		994
…		…
784	}	1071	}
785	} else {	1072	} else {
786	aio_unlink $filename;	1073	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1074	aio_unlink "$filename.pst";
788	}	1075	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1076	}
796	}	1077	}
797		1078
798	sub object_freezer_as_string {	1079	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1080	my ($rdata, $objs) = @_;
…		…
805		1086
806	sub object_thawer_load {	1087	sub object_thawer_load {
807	my ($filename) = @_;	1088	my ($filename) = @_;
808		1089
809	my ($data, $av);	1090	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1091
814	(aio_load $filename, $data) >= 0	1092	(aio_load $filename, $data) >= 0
815	or return;	1093	or return;
816		1094
817	unless (aio_stat "$filename.pst") {	1095	unless (aio_stat "$filename.pst") {
…		…
819	or return;	1097	or return;
820	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
821	}	1099	}
822		1100
823	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
825	return ($data, $av);	1103	return ($data, $av);
826	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
827		1111
828	#############################################################################	1112	#############################################################################
829	# command handling &c	1113	# command handling &c
830		1114
831	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1129	}
846		1130
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1132
849	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
850		1138
851	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
852	called.	1140	called.
853		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
854	=cut	1153	=cut
855		1154
856	sub register_extcmd {	1155	sub register_extcmd {
857	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
858		1157
859	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
860	}	1165	}
861		1166
862	cf::player->attach (	1167	cf::player->attach (
863	on_command => sub {	1168	on_command => sub {
864	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1178	cf::override;
874	},	1179	},
875	on_extcmd => sub {	1180	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
877		1182
878	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1184
880	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
883	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
884	}	1195	if $reply;
885	}	1196	}
886	} else {	1197	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1199	}
889		1200
890	cf::override;	1201	cf::override;
891	},	1202	},
892	);	1203	);
893		1204
894	sub load_extension {
895	my ($path) = @_;
896
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
898	my $base = $1;
899	my $pkg = $1;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}
922	die $@;
923	}
924
925	push @EXTS, $pkg;
926	}
927
928	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
929	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1210	next unless -r $path;
931	eval {	1211
932	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
933	1	1269	}
934	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
935	}	1275	};
936	}	1276	}
937		1277
938	#############################################################################	1278	#############################################################################
939		1279
		1280	=back
		1281
940	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
941		1283
942	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
943		1285
944	=cut	1286	=cut
…		…
956	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
957		1299
958	=cut	1300	=cut
959		1301
960	sub playerdir($) {	1302	sub playerdir($) {
961	cf::localdir	1303	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1305	}
967		1306
968	sub path($) {	1307	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1309
971	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
972	}	1311	}
973		1312
974	sub find_active($) {	1313	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1328	my $login = $_[0];
990		1329
991	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
992		1331
993	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
994	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
995	or return;	1341	or return;
996	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
997	}	1343	}
998	}	1344	}
…		…
1035		1381
1036	=cut	1382	=cut
1037		1383
1038	sub quit_character {	1384	sub quit_character {
1039	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1040		1388
1041	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
1043		1391
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
1054	IO::AIO::aio_rmtree $temp;	1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
1055	}	1423	}
1056		1424
1057	=item cf::player::list_logins	1425	=item cf::player::list_logins
1058		1426
1059	Returns am arrayref of all valid playernames in the system, can take a	1427	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1061		1429
1062	=cut	1430	=cut
1063		1431
1064	sub list_logins {	1432	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1434	or return [];
1067		1435
1068	my @logins;	1436	my @logins;
1069		1437
1070	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
…		…
1105	}	1473	}
1106		1474
1107	\@paths	1475	\@paths
1108	}	1476	}
1109		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1111		1529
1112	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1113		1531
1114	=cut	1532	=cut
1115		1533
1116	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1118		1536
1119	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1120		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1121	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1122	}	1544	}
1123		1545
1124	package cf;	1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
1125		1586
1126	=back	1587	=back
1127
1128		1588
1129	=head3 cf::map	1589	=head3 cf::map
1130		1590
1131	=over 4	1591	=over 4
1132		1592
…		…
1187	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1188		1648
1189	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1190	local $self->{path};	1650	local $self->{path};
1191	local $self->{load_path};	1651	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1652
1195	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1196	}	1654	}
1197		1655
1198	sub normalise {	1656	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1246	return $self;	1704	return $self;
1247	}	1705	}
1248	}	1706	}
1249		1707
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1709	()
1252	}	1710	}
1253		1711
1254	sub init {	1712	sub init {
1255	my ($self) = @_;	1713	my ($self) = @_;
…		…
1270		1728
1271	# the original (read-only) location	1729	# the original (read-only) location
1272	sub load_path {	1730	sub load_path {
1273	my ($self) = @_;	1731	my ($self) = @_;
1274		1732
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1733	"$MAPDIR/$self->{path}.map"
1276	}	1734	}
1277		1735
1278	# the temporary/swap location	1736	# the temporary/swap location
1279	sub save_path {	1737	sub save_path {
1280	my ($self) = @_;	1738	my ($self) = @_;
1281		1739
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1741	"$TMPDIR/$path.map"
1284	}	1742	}
1285		1743
1286	# the unique path, undef == no special unique path	1744	# the unique path, undef == no special unique path
1287	sub uniq_path {	1745	sub uniq_path {
1288	my ($self) = @_;	1746	my ($self) = @_;
1289		1747
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1749	"$UNIQUEDIR/$path"
1292	}	1750	}
1293		1751
1294	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1295	# all maps in C++...	1753	# all maps in C++...
1296	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1298		1756
1299	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1301	}	1759	}
1302		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
1303	sub unlink_save {	1769	sub unlink_save {
1304	my ($self) = @_;	1770	my ($self) = @_;
1305		1771
1306	utf8::encode (my $save = $self->save_path);	1772	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1775	}
1315		1776
1316	sub load_header_from($) {	1777	sub load_header_from($) {
1317	my ($self, $path) = @_;	1778	my ($self, $path) = @_;
1318		1779
…		…
1368	$self->load_header_orig	1829	$self->load_header_orig
1369	or return;	1830	or return;
1370	$self->prepare_orig;	1831	$self->prepare_orig;
1371	}	1832	}
1372		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
		1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
		1839
1373	1	1840	1
1374	}	1841	}
1375		1842
1376	sub find;	1843	sub find;
1377	sub find {	1844	sub find {
…		…
1389	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1390		1857
1391	$map->load_header	1858	$map->load_header
1392	or return;	1859	or return;
1393		1860
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1862	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1397	$map->reset;	1864	$map->reset;
1398	undef $guard;	1865	undef $guard;
1399	return find $path;	1866	return find $path;
…		…
1410	my ($self) = @_;	1877	my ($self) = @_;
1411		1878
1412	local $self->{deny_reset} = 1; # loading can take a long time	1879	local $self->{deny_reset} = 1; # loading can take a long time
1413		1880
1414	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1415	my $guard = cf::lock_acquire "map_load:$path";	1884	my $guard = cf::lock_acquire "map_load:$path";
1416		1885
1417	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1418		1887
1419	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1420		1889
1421	$self->alloc;	1890	$self->alloc;
1422		1891
1423	$self->pre_load;	1892	$self->pre_load;
1424
1425	$self->_load_objects ($self->{load_path}, 1)
1426	or return;
1427
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1429	if delete $self->{load_original};
1430
1431	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {
1434	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);
1436	}
1437	}
1438
1439	Coro::cede;
1440
1441	# now do the right thing for maps
1442	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;	1893	Coro::cede;
1449	$self->set_darkness_map;	1894
		1895	$self->_load_objects ($self->{load_path}, 1)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	if (aio_open $uniq, O_RDONLY, 0) {
		1904	$self->clear_unique_items;
		1905	$self->_load_objects ($uniq, 0);
		1906	}
		1907	}
		1908
		1909	Coro::cede;
		1910	# now do the right thing for maps
		1911	$self->link_multipart_objects;
1450	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	1913	unless $self->difficulty;
1452	Coro::cede;	1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1453	$self->activate;	1923	$self->activate;
		1924	}
		1925
		1926	$self->in_memory (cf::MAP_IN_MEMORY);
1454	}	1927	}
1455		1928
1456	$self->post_load;	1929	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1930	}
1460		1931
1461	sub customise_for {	1932	sub customise_for {
1462	my ($self, $ob) = @_;	1933	my ($self, $ob) = @_;
1463		1934
1464	return find "~" . $ob->name . "/" . $self->{path}	1935	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
1466		1940
1467	$self	1941	$self
1468	}	1942	}
1469		1943
1470	# find and load all maps in the 3x3 area around a map	1944	# find and load all maps in the 3x3 area around a map
…		…
1517		1991
1518	undef $MAP_PREFETCH{$path};	1992	undef $MAP_PREFETCH{$path};
1519	$MAP_PREFETCHER ||= cf::async {	1993	$MAP_PREFETCHER ||= cf::async {
1520	while (%MAP_PREFETCH) {	1994	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	1995	for my $path (keys %MAP_PREFETCH) {
1522	my $map = find $path	1996	if (my $map = find $path) {
1523	or next;
1524	$map->load;	1997	$map->load;
		1998	}
1525		1999
1526	delete $MAP_PREFETCH{$path};	2000	delete $MAP_PREFETCH{$path};
1527	}	2001	}
1528	}	2002	}
1529	undef $MAP_PREFETCHER;	2003	undef $MAP_PREFETCHER;
…		…
1581		2055
1582	sub reset_at {	2056	sub reset_at {
1583	my ($self) = @_;	2057	my ($self) = @_;
1584		2058
1585	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1588		2061
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2064
…		…
1602	my ($self) = @_;	2075	my ($self) = @_;
1603		2076
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2078
1606	return if $self->players;	2079	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2080
1609	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
1610		2092
1611	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
1612		2094
1613	$self->in_memory (cf::MAP_SWAPPED);
1614	$self->clear;	2095	$self->clear;
1615		2096
1616	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1617		2098
1618	$self->unlink_save;	2099	$self->unlink_save;
…		…
1637	$cf::MAP{$self->path} = $self;	2118	$cf::MAP{$self->path} = $self;
1638		2119
1639	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1640	}	2121	}
1641		2122
		2123	=item $maps = cf::map::tmp_maps
		2124
		2125	Returns an arrayref with all map paths of currently instantiated and saved
		2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
		2131	[
		2132	map {
		2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
		2139	}
		2140
		2141	=item $maps = cf::map::random_maps
		2142
		2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
		2145
		2146	=cut
		2147
		2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
1642	=item cf::map::unique_maps	2159	=item cf::map::unique_maps
1643		2160
1644	Returns an arrayref of paths of all shared maps that have	2161	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2162	instantiated unique items. May block.
1646		2163
1647	=cut	2164	=cut
1648		2165
1649	sub unique_maps() {	2166	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2167	[
1651	or return;	2168	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2169	utf8::decode $_;
1657	next if /\.pst$/;	2170	/\.map$/
1658	next unless /^$PATH_SEP/o;	2171	? normalise $_
1659		2172	: ()
1660	push @paths, cf::map::normalise $_;	2173	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2174	]
1662
1663	\@paths
1664	}	2175	}
1665		2176
1666	package cf;	2177	package cf;
1667		2178
1668	=back	2179	=back
…		…
1714		2225
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2227
1717	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1719	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1722	}	2242	}
1723	}	2243	}
1724		2244
1725	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1726		2246
…		…
1774	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1775		2295
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2297
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1780		2300
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2302	}
1783		2303
1784	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1786		2308
1787	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1788		2310
1789	unless ($map) {	2311	unless ($map) {
1790	# restore original map position	2312	# restore original map position
…		…
1808	$map->load;	2330	$map->load;
1809	$map->load_diag;	2331	$map->load_diag;
1810		2332
1811	return unless $self->contr->active;	2333	return unless $self->contr->active;
1812	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1814	}	2338	}
1815		2339
1816	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2341
1820	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1824	};	2346	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2347
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2348	=cut
		2349
		2350	our $GOTOGEN;
1851		2351
1852	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2357
1855	$self->enter_link;	2358	$self->enter_link;
1856		2359
1857	(async {	2360	(async {
1858	my $map = eval {	2361	my $map = eval {
1859	my $map = cf::map::find $path;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
		2366	$map = $check->($map) if $check && $map;
		2367	} else {
		2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
		2370
1861	$map	2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2377	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1866	})->prio (1);	2385	})->prio (1);
1867	}	2386	}
1868		2387
1869	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1870		2389
…		…
1909		2428
1910	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1911		2430
1912	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2433	my $meta = "$RANDOMDIR/$md5.meta";
1915		2434
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2437	undef $fh;
1919	aio_rename "$meta~", $meta;	2438	aio_rename "$meta~", $meta;
…		…
1928		2447
1929	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1930		2449
1931	if ($exit->slaying eq "/!") {	2450	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2454	cf::sync_job { prepare_random_map $exit };
1934	}	2455	}
1935		2456
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2458	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;	2459	my $sp = $exit->stats->sp;
1939		2460
1940	$self->enter_link;	2461	$self->enter_link;
		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
1941		2466
1942	(async {	2467	(async {
1943	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
1944	unless (eval {	2469	unless (eval {
1945	$self->goto ($slaying, $hp, $sp);	2470	$self->goto ($slaying, $hp, $sp);
1946		2471
1947	1;	2472	1;
1948	}) {	2473	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2475	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2476	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2478
1954	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2480	$self->leave_link;
1956	}	2481	}
1957	})->prio (1);	2482	})->prio (1);
…		…
1970		2495
1971	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1973		2498
1974	utf8::encode $text;	2499	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2501	}
1977		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => $channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
1978		2573
1979	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
1980		2575
1981	Queues a query to the client, calling the given callback with	2576	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2579
1985	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2581	become reliable at some point in the future.
1987		2582
1988	=cut	2583	=cut
1989		2584
1990	sub cf::client::query {	2585	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2594	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2596
2002	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
2004	}	2601	}
2005		2602
2006	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
2007	on_reply => sub {	2609	on_reply => sub {
2008	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
2009		2611
2010	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
2011	# get handled first	2613	# get handled first
…		…
2023	} else {	2625	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2627	}
2026	}	2628	}
2027	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
2028	);	2653	);
2029		2654
2030	=item $client->async (\&cb)	2655	=item $client->async (\&cb)
2031		2656
2032	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
…		…
2079		2704
2080	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
2081		2706
2082	=pod	2707	=pod
2083		2708
2084	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
2085		2710
2086	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
2087	cf::object::player player	2715	cf::object::player
2088	cf::player peaceful	2716	player
2089	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
2090		2723
2091	=cut	2724	=cut
2092		2725
2093	for (	2726	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
2095	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
2098	) {	2732	) {
2099	no strict 'refs';	2733	no strict 'refs';
…		…
2170	=back	2804	=back
2171		2805
2172	=cut	2806	=cut
2173		2807
2174	#############################################################################	2808	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	2809	# the server's init and main functions
2284		2810
2285	sub load_resources {	2811	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2812	my ($path) = @_;
		2813
		2814	warn "loading facedata from $path\n";
		2815
		2816	my $facedata;
		2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
		2819
		2820	$facedata = Coro::Storable::thaw $facedata;
		2821
		2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2824
		2825	{
		2826	my $faces = $facedata->{faceinfo};
		2827
		2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2834
		2835	cf::cede_to_tick;
		2836	}
		2837
		2838	while (my ($face, $info) = each %$faces) {
		2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	my $soundconf = delete $res->{"res/sound.conf"};
		2871
		2872	while (my ($name, $info) = each %$res) {
		2873	my $meta = $enc->encode ({
		2874	name => $name,
		2875	%{ $info->{meta} || {} },
		2876	});
		2877
		2878	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2879
		2880	if ($info->{type} & 1) {
		2881	# prepend meta info
		2882
		2883	my $data = pack "(w/a*)*", $meta, $info->{data};
		2884	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2885
		2886	cf::face::set_data $idx, 0, $data, $chk;
		2887	} else {
		2888	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2889	}
		2890
		2891	cf::face::set_type $idx, $info->{type};
		2892
		2893	cf::cede_to_tick;
		2894	}
		2895
		2896	if ($soundconf) {
		2897	$soundconf = $enc->decode (delete $soundconf->{data});
		2898
		2899	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2900	my $sound = $soundconf->{compat}[$_]
		2901	or next;
		2902
		2903	my $face = cf::face::find "sound/$sound->[1]";
		2904
		2905	cf::sound::set $sound->[0] => $face;
		2906	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2907	}
		2908
		2909	#TODO
		2910	}
		2911	}
		2912
		2913	1
		2914	}
		2915
		2916	register_exticmd fx_want => sub {
		2917	my ($ns, $want) = @_;
		2918
		2919	while (my ($k, $v) = each %$want) {
		2920	$ns->fx_want ($k, $v);
		2921	}
		2922	};
		2923
		2924	sub reload_regions {
		2925	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	2926	or die "unable to load regions file\n";
		2927
		2928	for (cf::region::list) {
		2929	$_->{match} = qr/$_->{match}/
		2930	if exists $_->{match};
		2931	}
		2932	}
		2933
		2934	sub reload_facedata {
		2935	load_facedata "$DATADIR/facedata"
		2936	or die "unable to load facedata\n";
		2937	}
		2938
		2939	sub reload_archetypes {
		2940	load_resource_file "$DATADIR/archetypes"
		2941	or die "unable to load archetypes\n";
		2942	#d# NEED to laod twice to resolve forward references
		2943	# this really needs to be done in an extra post-pass
		2944	# (which needs to be synchronous, so solve it differently)
		2945	load_resource_file "$DATADIR/archetypes"
		2946	or die "unable to load archetypes\n";
		2947	}
		2948
		2949	sub reload_treasures {
		2950	load_resource_file "$DATADIR/treasures"
		2951	or die "unable to load treasurelists\n";
		2952	}
		2953
		2954	sub reload_resources {
		2955	warn "reloading resource files...\n";
		2956
		2957	reload_regions;
		2958	reload_facedata;
		2959	#reload_archetypes;#d#
		2960	reload_archetypes;
		2961	reload_treasures;
		2962
		2963	warn "finished reloading resource files\n";
		2964	}
		2965
		2966	sub init {
		2967	reload_resources;
2288	}	2968	}
2289		2969
2290	sub cfg_load {	2970	sub cfg_load {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	2971	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	2972	or return;
2293		2973
2294	local $/;	2974	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	2975	*CFG = YAML::Syck::Load <$fh>;
2296		2976
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2984	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	2985	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	2986	};
2307	warn $@ if $@;	2987	warn $@ if $@;
2308	}	2988	}
2309	}
2310
2311	sub init {
2312	load_resources;
2313	}	2989	}
2314		2990
2315	sub main {	2991	sub main {
2316	# we must not ever block the main coroutine	2992	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	2993	local $Coro::idle = sub {
…		…
2320	Event::one_event;	2996	Event::one_event;
2321	})->prio (Coro::PRIO_MAX);	2997	})->prio (Coro::PRIO_MAX);
2322	};	2998	};
2323		2999
2324	cfg_load;	3000	cfg_load;
2325	db_load;	3001	db_init;
2326	load_extensions;	3002	load_extensions;
2327		3003
2328	$TICK_WATCHER->start;	3004	$TICK_WATCHER->start;
2329	Event::loop;	3005	Event::loop;
2330	}	3006	}
…		…
2345	},	3021	},
2346	);	3022	);
2347	}	3023	}
2348	}	3024	}
2349		3025
		3026	sub write_runtime {
		3027	my $runtime = "$LOCALDIR/runtime";
		3028
		3029	# first touch the runtime file to show we are still running:
		3030	# the fsync below can take a very very long time.
		3031
		3032	IO::AIO::aio_utime $runtime, undef, undef;
		3033
		3034	my $guard = cf::lock_acquire "write_runtime";
		3035
		3036	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3037	or return;
		3038
		3039	my $value = $cf::RUNTIME + 90 + 10;
		3040	# 10 is the runtime save interval, for a monotonic clock
		3041	# 60 allows for the watchdog to kill the server.
		3042
		3043	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3044	and return;
		3045
		3046	# always fsync - this file is important
		3047	aio_fsync $fh
		3048	and return;
		3049
		3050	# touch it again to show we are up-to-date
		3051	aio_utime $fh, undef, undef;
		3052
		3053	close $fh
		3054	or return;
		3055
		3056	aio_rename "$runtime~", $runtime
		3057	and return;
		3058
		3059	warn "runtime file written.\n";
		3060
		3061	1
		3062	}
		3063
2350	sub emergency_save() {	3064	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3065	my $freeze_guard = cf::freeze_mainloop;
2352		3066
2353	warn "enter emergency perl save\n";	3067	warn "enter emergency perl save\n";
2354		3068
…		…
2369	my $map = $cf::MAP{$path} or next;	3083	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3084	$map->valid or next;
2371	$map->save;	3085	$map->save;
2372	}	3086	}
2373	warn "end emergency map save\n";	3087	warn "end emergency map save\n";
		3088
		3089	warn "begin emergency database checkpoint\n";
		3090	BDB::db_env_txn_checkpoint $DB_ENV;
		3091	warn "end emergency database checkpoint\n";
2374	};	3092	};
2375		3093
2376	warn "leave emergency perl save\n";	3094	warn "leave emergency perl save\n";
2377	}	3095	}
2378		3096
		3097	sub post_cleanup {
		3098	my ($make_core) = @_;
		3099
		3100	warn Carp::longmess "post_cleanup backtrace"
		3101	if $make_core;
		3102	}
		3103
2379	sub reload() {	3104	sub do_reload_perl() {
2380	# can/must only be called in main	3105	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3106	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3107	warn "can only reload from main coroutine";
2383	return;	3108	return;
2384	}	3109	}
2385		3110
2386	warn "reloading...";	3111	warn "reloading...";
2387		3112
2388	warn "cancelling server ticker";	3113	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3114
		3115	cf::sync_job {
		3116	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	3117	cf::emergency_save;
		3118	cf::write_runtime; # external watchdog should not bark
2392		3119
2393	eval {	3120	warn "syncing database to disk";
		3121	BDB::db_env_txn_checkpoint $DB_ENV;
		3122
2394	# if anything goes wrong in here, we should simply crash as we already saved	3123	# if anything goes wrong in here, we should simply crash as we already saved
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398		3124
2399	warn "cancelling all WF_AUTOCANCEL watchers";	3125	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {	3126	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;	3127	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}	3128	}
2403		3129
2404	warn "flushing outstanding aio requests";	3130	warn "flushing outstanding aio requests";
2405	for (;;) {	3131	for (;;) {
		3132	BDB::flush;
2406	IO::AIO::flush;	3133	IO::AIO::flush;
2407	Coro::cede;	3134	Coro::cede;
2408	last unless IO::AIO::nreqs;	3135	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	3136	warn "iterate...";
2410	}	3137	}
		3138
		3139	++$RELOAD;
2411		3140
2412	warn "cancelling all extension coros";	3141	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	3142	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	3143	%EXT_CORO = ();
2415		3144
2416	warn "removing commands";	3145	warn "removing commands";
2417	%COMMAND = ();	3146	%COMMAND = ();
2418		3147
2419	warn "removing ext commands";	3148	warn "removing ext/exti commands";
2420	%EXTCMD = ();	3149	%EXTCMD = ();
		3150	%EXTICMD = ();
2421		3151
2422	warn "unloading/nuking all extensions";	3152	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	3153	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	3154	warn "... unloading $pkg";
2425		3155
…		…
2455	Symbol::delete_package "safe::$_"	3185	Symbol::delete_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3186	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3187
2458	warn "unloading cf.pm \"a bit\"";	3188	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3189	delete $INC{"cf.pm"};
		3190	delete $INC{"cf/pod.pm"};
2460		3191
2461	# don't, removes xs symbols, too,	3192	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3193	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3194	#Symbol::delete_package __PACKAGE__;
2464		3195
…		…
2468	require cf;	3199	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3200	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3201
2471	warn "loading config and database again";	3202	warn "loading config and database again";
2472	cf::cfg_load;	3203	cf::cfg_load;
2473	cf::db_load;
2474		3204
2475	warn "loading extensions";	3205	warn "loading extensions";
2476	cf::load_extensions;	3206	cf::load_extensions;
2477		3207
2478	warn "reattaching attachments to objects/players";	3208	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3209	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3210	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3211	reattach $_ for values %MAP;
		3212	warn "reattaching attachments to players";
		3213	reattach $_ for values %PLAYER;
2482		3214
2483	warn "loading reloadable resources";	3215	warn "leaving sync_job";
2484	load_resources;
2485		3216
2486	warn "restarting server ticker";	3217	1
2487		3218	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	3219	warn $@;
2493	warn "error while reloading, exiting.";	3220	warn "error while reloading, exiting.";
2494	exit 1;	3221	exit 1;
2495	}	3222	};
2496		3223
2497	warn "reloaded";	3224	warn "reloaded";
2498	};	3225	};
2499		3226
2500	our $RELOAD_WATCHER; # used only during reload	3227	our $RELOAD_WATCHER; # used only during reload
2501		3228
		3229	sub reload_perl() {
		3230	# doing reload synchronously and two reloads happen back-to-back,
		3231	# coro crashes during coro_state_free->destroy here.
		3232
		3233	$RELOAD_WATCHER ||= Event->timer (
		3234	reentrant => 0,
		3235	after => 0,
		3236	data => WF_AUTOCANCEL,
		3237	cb => sub {
		3238	do_reload_perl;
		3239	undef $RELOAD_WATCHER;
		3240	},
		3241	);
		3242	}
		3243
2502	register_command "reload" => sub {	3244	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3245	my ($who, $arg) = @_;
2504		3246
2505	if ($who->flag (FLAG_WIZ)) {	3247	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3248	$who->message ("reloading server.");
2507		3249	async { reload_perl };
2508	# doing reload synchronously and two reloads happen back-to-back,
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);
2520	}	3250	}
2521	};	3251	};
2522		3252
2523	unshift @INC, $LIBDIR;	3253	unshift @INC, $LIBDIR;
2524		3254
2525	my $bug_warning = 0;	3255	my $bug_warning = 0;
2526		3256
		3257	our @WAIT_FOR_TICK;
		3258	our @WAIT_FOR_TICK_BEGIN;
		3259
		3260	sub wait_for_tick {
		3261	return unless $TICK_WATCHER->is_active;
		3262	return if $Coro::current == $Coro::main;
		3263
		3264	my $signal = new Coro::Signal;
		3265	push @WAIT_FOR_TICK, $signal;
		3266	$signal->wait;
		3267	}
		3268
		3269	sub wait_for_tick_begin {
		3270	return unless $TICK_WATCHER->is_active;
		3271	return if $Coro::current == $Coro::main;
		3272
		3273	my $signal = new Coro::Signal;
		3274	push @WAIT_FOR_TICK_BEGIN, $signal;
		3275	$signal->wait;
		3276	}
		3277
		3278	my $min = 1e6;#d#
		3279	my $avg = 10;
2527	$TICK_WATCHER = Event->timer (	3280	$TICK_WATCHER = Event->timer (
2528	reentrant => 0,	3281	reentrant => 0,
2529	parked => 1,	3282	parked => 1,
2530	prio => 0,	3283	prio => 0,
2531	at => $NEXT_TICK || $TICK,	3284	at => $NEXT_TICK || $TICK,
…		…
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3288	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3289	unless ++$bug_warning > 10;
2537	return;	3290	return;
2538	}	3291	}
2539		3292
2540	$NOW = Event::time;	3293	$NOW = $tick_start = Event::time;
2541		3294
2542	cf::server_tick; # one server iteration	3295	cf::server_tick; # one server iteration
		3296
		3297	0 && sync_job {#d#
		3298	for(1..10) {
		3299	my $t = Event::time;
		3300	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3301	or die;
		3302
		3303	$map->width (50);
		3304	$map->height (50);
		3305	$map->alloc;
		3306	$map->_load_objects ("/tmp/x.map", 1);
		3307	my $t = Event::time - $t;
		3308
		3309	#next unless $t < 0.0013;#d#
		3310	if ($t < $min) {
		3311	$min = $t;
		3312	}
		3313	$avg = $avg * 0.99 + $t * 0.01;
		3314	}
		3315	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3316	exit 0;
		3317	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3318	};
		3319
2543	$RUNTIME += $TICK;	3320	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	3321	$NEXT_TICK += $TICK;
2545		3322
2546	$WAIT_FOR_TICK->broadcast;	3323	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3324	$NEXT_RUNTIME_WRITE = $NOW + 10;
2548		3325	Coro::async_pool {
2549	Event::sweep;	3326	write_runtime
2550	Coro::cede_notself;	3327	or warn "ERROR: unable to write runtime file: $!";
		3328	};
2551		3329	}
		3330
2552	# my $AFTER = Event::time;	3331	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#	3332	# warn $AFTER - $NOW;#d#
2554		3333
		3334	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3335	$sig->send;
		3336	}
		3337	while (my $sig = shift @WAIT_FOR_TICK) {
		3338	$sig->send;
		3339	}
		3340
		3341	$NOW = Event::time;
		3342
2555	# if we are delayed by four ticks or more, skip them all	3343	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3344	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2557		3345
2558	$TICK_WATCHER->at ($NEXT_TICK);	3346	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;	3347	$TICK_WATCHER->start;
		3348
		3349	$LOAD = ($NOW - $tick_start) / $TICK;
		3350	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3351
		3352	_post_tick;
		3353
		3354
2560	},	3355	},
2561	);	3356	);
2562		3357
2563	{	3358	{
2564	BDB::max_poll_time $TICK * 0.1;	3359	BDB::max_poll_time $TICK * 0.1;
…		…
2589		3384
2590	unless ($DB_ENV) {	3385	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3386	$DB_ENV = BDB::db_env_create;
2592		3387
2593	cf::sync_job {	3388	cf::sync_job {
		3389	eval {
2594	BDB::db_env_open	3390	BDB::db_env_open
2595	$DB_ENV,	3391	$DB_ENV,
2596	$BDB_ENV_DIR,	3392	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3393	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3394	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3395	0666;
2600		3396
2601	cf::cleanup "$!" if $!;	3397	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3398
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3399	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3400	$DB_ENV->set_lk_detect;
		3401	};
		3402
		3403	cf::cleanup "db_env_open(db): $@" if $@;
2604	};	3404	};
2605	}	3405	}
2606	}	3406	}
2607		3407
2608	{	3408	{
…		…
2610		3410
2611	undef $Coro::AIO::WATCHER;	3411	undef $Coro::AIO::WATCHER;
2612	IO::AIO::max_poll_time $TICK * 0.1;	3412	IO::AIO::max_poll_time $TICK * 0.1;
2613	$AIO_POLL_WATCHER = Event->io (	3413	$AIO_POLL_WATCHER = Event->io (
2614	reentrant => 0,	3414	reentrant => 0,
		3415	data => WF_AUTOCANCEL,
2615	fd => IO::AIO::poll_fileno,	3416	fd => IO::AIO::poll_fileno,
2616	poll => 'r',	3417	poll => 'r',
2617	prio => 6,	3418	prio => 6,
2618	data => WF_AUTOCANCEL,
2619	cb => \&IO::AIO::poll_cb,	3419	cb => \&IO::AIO::poll_cb,
2620	);	3420	);
2621	}	3421	}
2622		3422
2623	$WRITE_RUNTIME_WATCHER = Event->timer (	3423	my $_log_backtrace;
2624	reentrant => 0,	3424
2625	data => WF_AUTOCANCEL,	3425	sub _log_backtrace {
2626	after => 1,	3426	my ($msg, @addr) = @_;
2627	interval => 10,	3427
2628	prio => 6, # keep it lowest so it acts like a watchdog	3428	$msg =~ s/\n//;
2629	cb => Coro::unblock_sub {	3429
2630	write_runtime	3430	# limit the # of concurrent backtraces
2631	or warn "ERROR: unable to write runtime file: $!";	3431	if ($_log_backtrace < 2) {
		3432	++$_log_backtrace;
		3433	async {
		3434	my @bt = fork_call {
		3435	@addr = map { sprintf "%x", $_ } @addr;
		3436	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3437	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3438	or die "addr2line: $!";
		3439
		3440	my @funcs;
		3441	my @res = <$fh>;
		3442	chomp for @res;
		3443	while (@res) {
		3444	my ($func, $line) = splice @res, 0, 2, ();
		3445	push @funcs, "[$func] $line";
		3446	}
		3447
		3448	@funcs
		3449	};
		3450
		3451	LOG llevInfo, "[ABT] $msg\n";
		3452	LOG llevInfo, "[ABT] $_\n" for @bt;
		3453	--$_log_backtrace;
		3454	};
		3455	} else {
		3456	LOG llevInfo, "[ABT] $msg\n";
		3457	LOG llevInfo, "[ABT] [suppressed]\n";
2632	},	3458	}
2633	);	3459	}
		3460
		3461	# load additional modules
		3462	use cf::pod;
2634		3463
2635	END { cf::emergency_save }	3464	END { cf::emergency_save }
2636		3465
2637	1	3466	1
2638		3467

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