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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.205 by root, Mon Feb 5 18:29:20 2007 UTC vs.
Revision 1.323 by root, Sat Jul 28 12:02:58 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
53	our $USE_FSYNC = 1; # use fsync to write maps - default off	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
54		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
		85
55	our %CFG;	86	our %CFG;
56		87
57	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	89	our $RUNTIME;
59		90
60	our %PLAYER; # all users	91	our %PLAYER; # all users
61	our %MAP; # all maps	92	our %MAP; # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		94
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $tick_start; # for load detecting purposes
		101
71	binmode STDOUT;	102	binmode STDOUT;
72	binmode STDERR;	103	binmode STDERR;
73		104
74	# read virtual server time, if available	105	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
76	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
77	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
78	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
79	}	110	}
80		111
81	mkdir cf::localdir;	112	mkdir $_
82	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
83	mkdir cf::localdir . "/" . cf::tmpdir;
84	mkdir cf::localdir . "/" . cf::uniquedir;
85	mkdir $RANDOM_MAPS;
86		114
87	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
88		116
89	sub cf::map::normalise;	117	sub cf::map::normalise;
90		118
…		…
101	=item $cf::RUNTIME	129	=item $cf::RUNTIME
102		130
103	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
104	every server tick.	132	every server tick.
105		133
106	=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
107		137
108	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		142
111	=item $cf::NOW	143	=item $cf::NOW
112		144
113	The time of the last (current) server tick.	145	The time of the last (current) server tick.
114		146
115	=item $cf::TICK	147	=item $cf::TICK
116		148
117	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.
118		160
119	=item %cf::CFG	161	=item %cf::CFG
120		162
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
122	from wherever your confdir points to.	164	from wherever your confdir points to.
123		165
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		167
126	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
127	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
128	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.
129	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.
130		177
131	=back	178	=back
132		179
133	=cut	180	=cut
134		181
135	BEGIN {	182	BEGIN {
136	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	184	my $msg = join "", @_;
138	utf8::encode $msg;
139		185
140	$msg .= "\n"	186	$msg .= "\n"
141	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
142		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
143	LOG llevError, $msg;	192	LOG llevError, $msg;
144	};	193	};
145	}	194	}
146		195
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		203
154	# 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
155	# within the Safe compartment.	205	# within the Safe compartment.
156	for my $pkg (qw(	206	for my $pkg (qw(
157	cf::global cf::attachable	207	cf::global cf::attachable
…		…
165	}	215	}
166		216
167	$Event::DIED = sub {	217	$Event::DIED = sub {
168	warn "error in event callback: @_";	218	warn "error in event callback: @_";
169	};	219	};
		220
		221	#############################################################################
170		222
171	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
172		224
173	=over 4	225	=over 4
174		226
…		…
193	$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;
194	$d	246	$d
195	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
196	}	248	}
197		249
198	use JSON::Syck (); # TODO# replace by JSON::PC once working
199
200	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
201		251
202	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
203		253
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
212		255
213	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
214		257
215	=cut	258	=cut
216		259
217	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
219	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
220	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
221		264
222	=item cf::lock_wait $string	265	=item cf::lock_wait $string
223		266
224	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
225		268
…		…
231	returned.	274	returned.
232		275
233	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
234	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
235		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
236	=cut	283	=cut
237		284
238	our %LOCK;	285	our %LOCK;
239		286
240	sub lock_wait($) {	287	sub lock_wait($) {
…		…
259	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
261	}	308	}
262	}	309	}
263		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
264	sub freeze_mainloop {	317	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
266		319
267	my $guard = Coro::guard {	320	my $guard = Coro::guard {
268	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
269	$WRITE_RUNTIME_WATCHER->start;
270	};	322	};
271	$WRITE_RUNTIME_WATCHER->stop;
272	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
273	$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;
274	}	381	}
275		382
276	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
277		384
278	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
283		390
284	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
285		392
286	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
287		394
288	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)
289	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
290	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.
291		399
292	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
293	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
294	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
295	fast or be very important.	403	fast or be very important.
…		…
298		406
299	sub sync_job(&) {	407	sub sync_job(&) {
300	my ($job) = @_;	408	my ($job) = @_;
301		409
302	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
303	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
305		415
306	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
307	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
318		428
319	while ($busy) {	429	while ($busy) {
320	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
321	}	431	}
322		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
323	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
324	} else {	441	} else {
325	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
326		443
327	$job->()	444	$job->()
…		…
346	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
347		464
348	$coro	465	$coro
349	}	466	}
350		467
351	sub write_runtime {	468	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		469
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
355	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.
356		474
357	my $value = $cf::RUNTIME + 90 + 10;	475	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		476
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	477	sub _store_scalar {
362	and return;	478	open my $fh, ">", \my $buf
363		479	or die "fork_call: cannot open fh-to-buf in child : $!";
364	# always fsync - this file is important	480	Storable::store_fd $_[0], $fh;
365	aio_fsync $fh
366	and return;
367
368	close $fh	481	close $fh;
369	or return;
370		482
371	aio_rename "$runtime~", $runtime	483	$buf
372	and return;	484	}
373		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;
374	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 });
375	}	655	}
376		656
377	=back	657	=back
378		658
379	=cut	659	=cut
…		…
386	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")
387	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
388		668
389	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>
390	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
391	crossfire+).	671	Crossfire TRT).
392		672
393	=over 4	673	=over 4
394		674
395	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
396		676
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
560		840
561	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		845
566	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	847	my $pkg = shift @arg;
568		848
569	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
599	}	879	}
600		880
601	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
602	} else {	882	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	884	}
605		885
606	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
607	}	887	}
608		888
…		…
610	if (ref $_[0]) {	890	if (ref $_[0]) {
611	_object_attach @_;	891	_object_attach @_;
612	} else {	892	} else {
613	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
614	}	894	}
		895	_recalc_want;
615	};	896	};
616		897
617	# all those should be optimised	898	# all those should be optimised
618	sub cf::attachable::detach {	899	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
623	reattach ($obj);	904	reattach ($obj);
624	} else {	905	} else {
625	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
626	}	907	}
		908	_recalc_want;
627	};	909	};
628		910
629	sub cf::attachable::attached {	911	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
631		913
…		…
646	";	928	";
647	die if $@;	929	die if $@;
648	}	930	}
649		931
650	our $override;	932	our $override;
651	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?
652		934
653	sub override {	935	sub override {
654	$override = 1;	936	$override = 1;
655	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
656	}	938	}
657		939
658	sub do_invoke {	940	sub do_invoke {
659	my $event = shift;	941	my $event = shift;
660	my $callbacks = shift;	942	my $callbacks = shift;
661		943
662	@invoke_results = ();	944	@INVOKE_RESULTS = ();
663		945
664	local $override;	946	local $override;
665		947
666	for (@$callbacks) {	948	for (@$callbacks) {
667	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
684		966
685	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
686		968
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		972
691	=back	973	=back
692		974
693	=cut	975	=cut
694		976
695	#############################################################################	977	#############################################################################
696	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
697		990
698	sub reattach {	991	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	993	my ($obj) = @_;
701		994
…		…
778	}	1071	}
779	} else {	1072	} else {
780	aio_unlink $filename;	1073	aio_unlink $filename;
781	aio_unlink "$filename.pst";	1074	aio_unlink "$filename.pst";
782	}	1075	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	1076	}
790	}	1077	}
791		1078
792	sub object_freezer_as_string {	1079	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	1080	my ($rdata, $objs) = @_;
…		…
799		1086
800	sub object_thawer_load {	1087	sub object_thawer_load {
801	my ($filename) = @_;	1088	my ($filename) = @_;
802		1089
803	my ($data, $av);	1090	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1091
808	(aio_load $filename, $data) >= 0	1092	(aio_load $filename, $data) >= 0
809	or return;	1093	or return;
810		1094
811	unless (aio_stat "$filename.pst") {	1095	unless (aio_stat "$filename.pst") {
…		…
813	or return;	1097	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1099	}
816		1100
817	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1103	return ($data, $av);
820	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
821		1111
822	#############################################################################	1112	#############################################################################
823	# command handling &c	1113	# command handling &c
824		1114
825	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1129	}
840		1130
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1132
843	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.
844		1138
845	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
846	called.	1140	called.
847		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
848	=cut	1153	=cut
849		1154
850	sub register_extcmd {	1155	sub register_extcmd {
851	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
852		1157
853	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
854	}	1165	}
855		1166
856	cf::player->attach (	1167	cf::player->attach (
857	on_command => sub {	1168	on_command => sub {
858	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1178	cf::override;
868	},	1179	},
869	on_extcmd => sub {	1180	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
871		1182
872	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1184
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
877	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
878	}	1195	if $reply;
879	}	1196	}
880	} else {	1197	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1199	}
883		1200
884	cf::override;	1201	cf::override;
885	},	1202	},
886	);	1203	);
887		1204
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
923	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1210	next unless -r $path;
925	eval {	1211
926	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	$progress = 1;
927	1	1269	}
928	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
929	}	1275	};
930	}	1276	}
931		1277
932	#############################################################################	1278	#############################################################################
933		1279
		1280	=back
		1281
934	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
935		1283
936	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
937		1285
938	=cut	1286	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
951		1299
952	=cut	1300	=cut
953		1301
954	sub playerdir($) {	1302	sub playerdir($) {
955	cf::localdir	1303	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1305	}
961		1306
962	sub path($) {	1307	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1309
965	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
966	}	1311	}
967		1312
968	sub find_active($) {	1313	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1328	my $login = $_[0];
984		1329
985	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
986		1331
987	$cf::PLAYER{$_[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
988	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
989	or return;	1341	or return;
990	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
991	}	1343	}
992	}	1344	}
…		…
1029		1381
1030	=cut	1382	=cut
1031		1383
1032	sub quit_character {	1384	sub quit_character {
1033	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1034		1388
1035	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1036	$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
1037		1391
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1423	}
1050		1424
1051	=item cf::player::list_logins	1425	=item cf::player::list_logins
1052		1426
1053	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
1054	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1055		1429
1056	=cut	1430	=cut
1057		1431
1058	sub list_logins {	1432	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1434	or return [];
1061		1435
1062	my @logins;	1436	my @logins;
1063		1437
1064	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
…		…
1099	}	1473	}
1100		1474
1101	\@paths	1475	\@paths
1102	}	1476	}
1103		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
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1105		1529
1106	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1107		1531
1108	=cut	1532	=cut
1109		1533
1110	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1112		1536
1113	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1114		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1115	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($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	}
1116	}	1544	}
1117		1545
1118	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	$match
		1585	}
1119		1586
1120	=back	1587	=back
1121
1122		1588
1123	=head3 cf::map	1589	=head3 cf::map
1124		1590
1125	=over 4	1591	=over 4
1126		1592
…		…
1181	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1182		1648
1183	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1184	local $self->{path};	1650	local $self->{path};
1185	local $self->{load_path};	1651	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1652
1189	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1190	}	1654	}
1191		1655
1192	sub normalise {	1656	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1240	return $self;	1704	return $self;
1241	}	1705	}
1242	}	1706	}
1243		1707
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1709	()
1246	}	1710	}
1247		1711
1248	sub init {	1712	sub init {
1249	my ($self) = @_;	1713	my ($self) = @_;
…		…
1264		1728
1265	# the original (read-only) location	1729	# the original (read-only) location
1266	sub load_path {	1730	sub load_path {
1267	my ($self) = @_;	1731	my ($self) = @_;
1268		1732
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1733	"$MAPDIR/$self->{path}.map"
1270	}	1734	}
1271		1735
1272	# the temporary/swap location	1736	# the temporary/swap location
1273	sub save_path {	1737	sub save_path {
1274	my ($self) = @_;	1738	my ($self) = @_;
1275		1739
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1741	"$TMPDIR/$path.map"
1278	}	1742	}
1279		1743
1280	# the unique path, undef == no special unique path	1744	# the unique path, undef == no special unique path
1281	sub uniq_path {	1745	sub uniq_path {
1282	my ($self) = @_;	1746	my ($self) = @_;
1283		1747
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1749	"$UNIQUEDIR/$path"
1286	}	1750	}
1287		1751
1288	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1289	# all maps in C++...	1753	# all maps in C++...
1290	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1292		1756
1293	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1294	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1295	}	1759	}
1296		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
1297	sub unlink_save {	1769	sub unlink_save {
1298	my ($self) = @_;	1770	my ($self) = @_;
1299		1771
1300	utf8::encode (my $save = $self->save_path);	1772	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1775	}
1309		1776
1310	sub load_header_from($) {	1777	sub load_header_from($) {
1311	my ($self, $path) = @_;	1778	my ($self, $path) = @_;
1312		1779
…		…
1362	$self->load_header_orig	1829	$self->load_header_orig
1363	or return;	1830	or return;
1364	$self->prepare_orig;	1831	$self->prepare_orig;
1365	}	1832	}
1366		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
1367	1	1840	1
1368	}	1841	}
1369		1842
1370	sub find;	1843	sub find;
1371	sub find {	1844	sub find {
…		…
1383	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1384		1857
1385	$map->load_header	1858	$map->load_header
1386	or return;	1859	or return;
1387		1860
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	1862	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1391	$map->reset;	1864	$map->reset;
1392	undef $guard;	1865	undef $guard;
1393	return find $path;	1866	return find $path;
…		…
1404	my ($self) = @_;	1877	my ($self) = @_;
1405		1878
1406	local $self->{deny_reset} = 1; # loading can take a long time	1879	local $self->{deny_reset} = 1; # loading can take a long time
1407		1880
1408	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1409	my $guard = cf::lock_acquire "map_load:$path";	1884	my $guard = cf::lock_acquire "map_load:$path";
1410		1885
1411	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1412		1887
1413	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1414		1889
1415	$self->alloc;	1890	$self->alloc;
1416		1891
1417	$self->pre_load;	1892	$self->pre_load;
1418
1419	$self->_load_objects ($self->{load_path}, 1)
1420	or return;
1421
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};
1424
1425	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);
1430	}
1431	}
1432
1433	Coro::cede;
1434
1435	# now do the right thing for maps
1436	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;	1893	Coro::cede;
1443	$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;
1444	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	1913	unless $self->difficulty;
1446	Coro::cede;	1914	Coro::cede;
		1915
		1916	unless ($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;
1447	$self->activate;	1923	$self->activate;
		1924	}
		1925
		1926	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	1927	}
1449		1928
1450	$self->post_load;	1929	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	1930	}
1454		1931
1455	sub customise_for {	1932	sub customise_for {
1456	my ($self, $ob) = @_;	1933	my ($self, $ob) = @_;
1457		1934
1458	return find "~" . $ob->name . "/" . $self->{path}	1935	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
1460		1940
1461	$self	1941	$self
1462	}	1942	}
1463		1943
1464	# 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
…		…
1511		1991
1512	undef $MAP_PREFETCH{$path};	1992	undef $MAP_PREFETCH{$path};
1513	$MAP_PREFETCHER ||= cf::async {	1993	$MAP_PREFETCHER ||= cf::async {
1514	while (%MAP_PREFETCH) {	1994	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	1995	for my $path (keys %MAP_PREFETCH) {
1516	my $map = find $path	1996	if (my $map = find $path) {
1517	or next;
1518	$map->load;	1997	$map->load;
		1998	}
1519		1999
1520	delete $MAP_PREFETCH{$path};	2000	delete $MAP_PREFETCH{$path};
1521	}	2001	}
1522	}	2002	}
1523	undef $MAP_PREFETCHER;	2003	undef $MAP_PREFETCHER;
…		…
1575		2055
1576	sub reset_at {	2056	sub reset_at {
1577	my ($self) = @_;	2057	my ($self) = @_;
1578		2058
1579	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1582		2061
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		2064
…		…
1596	my ($self) = @_;	2075	my ($self) = @_;
1597		2076
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2078
1600	return if $self->players;	2079	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2080
1603	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	}
1604		2092
1605	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
1606		2094
1607	$self->in_memory (cf::MAP_SWAPPED);
1608	$self->clear;	2095	$self->clear;
1609		2096
1610	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1611		2098
1612	$self->unlink_save;	2099	$self->unlink_save;
…		…
1631	$cf::MAP{$self->path} = $self;	2118	$cf::MAP{$self->path} = $self;
1632		2119
1633	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1634	}	2121	}
1635		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
1636	=item cf::map::unique_maps	2159	=item cf::map::unique_maps
1637		2160
1638	Returns an arrayref of paths of all shared maps that have	2161	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2162	instantiated unique items. May block.
1640		2163
1641	=cut	2164	=cut
1642		2165
1643	sub unique_maps() {	2166	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2167	[
1645	or return;	2168	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2169	utf8::decode $_;
1651	next if /\.pst$/;	2170	/\.map$/
1652	next unless /^$PATH_SEP/o;	2171	? normalise $_
1653		2172	: ()
1654	push @paths, cf::map::normalise $_;	2173	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2174	]
1656
1657	\@paths
1658	}	2175	}
1659		2176
1660	package cf;	2177	package cf;
1661		2178
1662	=back	2179	=back
…		…
1708		2225
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2227
1711	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1716	}	2242	}
1717	}	2243	}
1718		2244
1719	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1720		2246
…		…
1768	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1769		2295
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2297
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1774		2300
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	2302	}
1777		2303
1778	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1780		2308
1781	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1782		2310
1783	unless ($map) {	2311	unless ($map) {
1784	# restore original map position	2312	# restore original map position
…		…
1802	$map->load;	2330	$map->load;
1803	$map->load_diag;	2331	$map->load_diag;
1804		2332
1805	return unless $self->contr->active;	2333	return unless $self->contr->active;
1806	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1807	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1808	}	2338	}
1809		2339
1810	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1811	on_logout => sub {
1812	my ($pl) = @_;
1813		2341
1814	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1815	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1816	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1817	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1818	};	2346	be called at the end of this process.
1819	}
1820	},
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2347
1824	# try to abort aborted map switching on player login :)
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841
1842	=item $player_object->goto ($path, $x, $y)
1843
1844	=cut	2348	=cut
		2349
		2350	our $GOTOGEN;
1845		2351
1846	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1847	my ($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;
1848		2357
1849	$self->enter_link;	2358	$self->enter_link;
1850		2359
1851	(async {	2360	(async {
1852	my $map = eval {	2361	my $map = eval {
1853	my $map = cf::map::find $path;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1854	$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
1855	$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 $@;
1856	} or	2377	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1860	})->prio (1);	2385	})->prio (1);
1861	}	2386	}
1862		2387
1863	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1864		2389
…		…
1903		2428
1904	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1905		2430
1906	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1907	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2433	my $meta = "$RANDOMDIR/$md5.meta";
1909		2434
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2437	undef $fh;
1913	aio_rename "$meta~", $meta;	2438	aio_rename "$meta~", $meta;
…		…
1922		2447
1923	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1924		2449
1925	if ($exit->slaying eq "/!") {	2450	if ($exit->slaying eq "/!") {
1926	#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
1927	cf::sync_job { prepare_random_map $exit };	2454	cf::sync_job { prepare_random_map $exit };
1928	}	2455	}
1929		2456
1930	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;
1931	my $hp = $exit->stats->hp;	2458	my $hp = $exit->stats->hp;
1932	my $sp = $exit->stats->sp;	2459	my $sp = $exit->stats->sp;
1933		2460
1934	$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);
1935		2466
1936	(async {	2467	(async {
1937	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
1938	unless (eval {	2469	unless (eval {
1939	$self->goto ($slaying, $hp, $sp);	2470	$self->goto ($slaying, $hp, $sp);
1940		2471
1941	1;	2472	1;
1942	}) {	2473	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	2476	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2478
1948	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2480	$self->leave_link;
1950	}	2481	}
1951	})->prio (1);	2482	})->prio (1);
…		…
1964		2495
1965	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1967		2498
1968	utf8::encode $text;	2499	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2501	}
1971		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_CLIENT_MASK; # 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	# default colour, mask it out
		2533	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2534	if $color & cf::NDI_DEF;
		2535
		2536	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2537	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2538	} else {
		2539	if ($color >= 0) {
		2540	# replace some tags by gcfclient-compatible ones
		2541	for ($msg) {
		2542	1 while
		2543	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2544	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2545	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2546	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2547	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2548	}
		2549
		2550	$color &= cf::NDI_COLOR_MASK;
		2551
		2552	if (0 && $msg =~ /\[/) {
		2553	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2554	} else {
		2555	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2556	$self->send_packet ("drawinfo $color $msg")
		2557	}
		2558	}
		2559	}
		2560	}
		2561
		2562	=item $client->ext_msg ($type, @msg)
		2563
		2564	Sends an ext event to the client.
		2565
		2566	=cut
		2567
		2568	sub cf::client::ext_msg($$@) {
		2569	my ($self, $type, @msg) = @_;
		2570
		2571	my $extcmd = $self->extcmd;
		2572
		2573	if ($extcmd == 2) {
		2574	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2575	} elsif ($extcmd == 1) { # TODO: remove
		2576	push @msg, msgtype => "event_$type";
		2577	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2578	}
		2579	}
1972		2580
1973	=item $success = $client->query ($flags, "text", \&cb)	2581	=item $success = $client->query ($flags, "text", \&cb)
1974		2582
1975	Queues a query to the client, calling the given callback with	2583	Queues a query to the client, calling the given callback with
1976	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2584	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1977	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2585	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1978		2586
1979	Queries can fail, so check the return code. Or don't, as queries will become	2587	Queries can fail, so check the return code. Or don't, as queries will
1980	reliable at some point in the future.	2588	become reliable at some point in the future.
1981		2589
1982	=cut	2590	=cut
1983		2591
1984	sub cf::client::query {	2592	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	2593	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	2601	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2602	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		2603
1996	$self->send_packet ($self->{query_queue}[0][0])	2604	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	2605	if @{ $self->{query_queue} } == 1;
		2606
		2607	1
1998	}	2608	}
1999		2609
2000	cf::client->attach (	2610	cf::client->attach (
		2611	on_connect => sub {
		2612	my ($ns) = @_;
		2613
		2614	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2615	},
2001	on_reply => sub {	2616	on_reply => sub {
2002	my ($ns, $msg) = @_;	2617	my ($ns, $msg) = @_;
2003		2618
2004	# this weird shuffling is so that direct followup queries	2619	# this weird shuffling is so that direct followup queries
2005	# get handled first	2620	# get handled first
…		…
2017	} else {	2632	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2633	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	2634	}
2020	}	2635	}
2021	},	2636	},
		2637	on_exticmd => sub {
		2638	my ($ns, $buf) = @_;
		2639
		2640	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2641
		2642	if (ref $msg) {
		2643	my ($type, $reply, @payload) =
		2644	"ARRAY" eq ref $msg
		2645	? @$msg
		2646	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2647
		2648	if (my $cb = $EXTICMD{$type}) {
		2649	my @reply = $cb->($ns, @payload);
		2650
		2651	$ns->ext_reply ($reply, @reply)
		2652	if $reply;
		2653	}
		2654	} else {
		2655	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2656	}
		2657
		2658	cf::override;
		2659	},
2022	);	2660	);
2023		2661
2024	=item $client->async (\&cb)	2662	=item $client->async (\&cb)
2025		2663
2026	Create a new coroutine, running the specified callback. The coroutine will	2664	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073		2711
2074	# here we export the classes and methods available to script code	2712	# here we export the classes and methods available to script code
2075		2713
2076	=pod	2714	=pod
2077		2715
2078	The following fucntions and emthods are available within a safe environment:	2716	The following functions and methods are available within a safe environment:
2079		2717
2080	cf::object contr pay_amount pay_player map	2718	cf::object
		2719	contr pay_amount pay_player map x y force_find force_add
		2720	insert remove
		2721
2081	cf::object::player player	2722	cf::object::player
2082	cf::player peaceful	2723	player
2083	cf::map trigger	2724
		2725	cf::player
		2726	peaceful
		2727
		2728	cf::map
		2729	trigger
2084		2730
2085	=cut	2731	=cut
2086		2732
2087	for (	2733	for (
2088	["cf::object" => qw(contr pay_amount pay_player map)],	2734	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2735	insert remove)],
2089	["cf::object::player" => qw(player)],	2736	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	2737	["cf::player" => qw(peaceful)],
2091	["cf::map" => qw(trigger)],	2738	["cf::map" => qw(trigger)],
2092	) {	2739	) {
2093	no strict 'refs';	2740	no strict 'refs';
…		…
2164	=back	2811	=back
2165		2812
2166	=cut	2813	=cut
2167		2814
2168	#############################################################################	2815	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275
2276	#############################################################################
2277	# the server's init and main functions	2816	# the server's init and main functions
2278		2817
2279	sub load_resources {	2818	sub load_facedata($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2819	my ($path) = @_;
		2820
		2821	warn "loading facedata from $path\n";
		2822
		2823	my $facedata;
		2824	0 < aio_load $path, $facedata
		2825	or die "$path: $!";
		2826
		2827	$facedata = Coro::Storable::thaw $facedata;
		2828
		2829	$facedata->{version} == 2
		2830	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2831
		2832	{
		2833	my $faces = $facedata->{faceinfo};
		2834
		2835	while (my ($face, $info) = each %$faces) {
		2836	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2837	cf::face::set_visibility $idx, $info->{visibility};
		2838	cf::face::set_magicmap $idx, $info->{magicmap};
		2839	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2840	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2841
		2842	cf::cede_to_tick;
		2843	}
		2844
		2845	while (my ($face, $info) = each %$faces) {
		2846	next unless $info->{smooth};
		2847	my $idx = cf::face::find $face
		2848	or next;
		2849	if (my $smooth = cf::face::find $info->{smooth}) {
		2850	cf::face::set_smooth $idx, $smooth;
		2851	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2852	} else {
		2853	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2854	}
		2855
		2856	cf::cede_to_tick;
		2857	}
		2858	}
		2859
		2860	{
		2861	my $anims = $facedata->{animinfo};
		2862
		2863	while (my ($anim, $info) = each %$anims) {
		2864	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2865	cf::cede_to_tick;
		2866	}
		2867
		2868	cf::anim::invalidate_all; # d'oh
		2869	}
		2870
		2871	{
		2872	# TODO: for gcfclient pleasure, we should give resources
		2873	# that gcfclient doesn't grok a >10000 face index.
		2874	my $res = $facedata->{resource};
		2875	my $enc = JSON::XS->new->utf8->canonical;
		2876
		2877	my $soundconf = delete $res->{"res/sound.conf"};
		2878
		2879	while (my ($name, $info) = each %$res) {
		2880	my $meta = $enc->encode ({
		2881	name => $name,
		2882	%{ $info->{meta} || {} },
		2883	});
		2884
		2885	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2886
		2887	if ($info->{type} & 1) {
		2888	# prepend meta info
		2889
		2890	my $data = pack "(w/a*)*", $meta, $info->{data};
		2891	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2892
		2893	cf::face::set_data $idx, 0, $data, $chk;
		2894	} else {
		2895	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2896	}
		2897
		2898	cf::face::set_type $idx, $info->{type};
		2899
		2900	cf::cede_to_tick;
		2901	}
		2902
		2903	if ($soundconf) {
		2904	$soundconf = $enc->decode (delete $soundconf->{data});
		2905
		2906	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2907	my $sound = $soundconf->{compat}[$_]
		2908	or next;
		2909
		2910	my $face = cf::face::find "sound/$sound->[1]";
		2911
		2912	cf::sound::set $sound->[0] => $face;
		2913	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2914	}
		2915
		2916	#TODO
		2917	}
		2918	}
		2919
		2920	1
		2921	}
		2922
		2923	register_exticmd fx_want => sub {
		2924	my ($ns, $want) = @_;
		2925
		2926	while (my ($k, $v) = each %$want) {
		2927	$ns->fx_want ($k, $v);
		2928	}
		2929	};
		2930
		2931	sub reload_regions {
		2932	load_resource_file "$MAPDIR/regions"
2281	or die "unable to load regions file\n";#d#	2933	or die "unable to load regions file\n";
		2934
		2935	for (cf::region::list) {
		2936	$_->{match} = qr/$_->{match}/
		2937	if exists $_->{match};
		2938	}
		2939	}
		2940
		2941	sub reload_facedata {
		2942	load_facedata "$DATADIR/facedata"
		2943	or die "unable to load facedata\n";
		2944	}
		2945
		2946	sub reload_archetypes {
		2947	load_resource_file "$DATADIR/archetypes"
		2948	or die "unable to load archetypes\n";
		2949	#d# NEED to laod twice to resolve forward references
		2950	# this really needs to be done in an extra post-pass
		2951	# (which needs to be synchronous, so solve it differently)
		2952	load_resource_file "$DATADIR/archetypes"
		2953	or die "unable to load archetypes\n";
		2954	}
		2955
		2956	sub reload_treasures {
		2957	load_resource_file "$DATADIR/treasures"
		2958	or die "unable to load treasurelists\n";
		2959	}
		2960
		2961	sub reload_resources {
		2962	warn "reloading resource files...\n";
		2963
		2964	reload_regions;
		2965	reload_facedata;
		2966	#reload_archetypes;#d#
		2967	reload_archetypes;
		2968	reload_treasures;
		2969
		2970	warn "finished reloading resource files\n";
		2971	}
		2972
		2973	sub init {
		2974	reload_resources;
2282	}	2975	}
2283		2976
2284	sub cfg_load {	2977	sub cfg_load {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	2978	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	2979	or return;
2287		2980
2288	local $/;	2981	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	2982	*CFG = YAML::Syck::Load <$fh>;
2290		2983
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2991	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	2992	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	2993	};
2301	warn $@ if $@;	2994	warn $@ if $@;
2302	}	2995	}
2303	}
2304
2305	sub init {
2306	load_resources;
2307	}	2996	}
2308		2997
2309	sub main {	2998	sub main {
2310	# we must not ever block the main coroutine	2999	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3000	local $Coro::idle = sub {
…		…
2314	Event::one_event;	3003	Event::one_event;
2315	})->prio (Coro::PRIO_MAX);	3004	})->prio (Coro::PRIO_MAX);
2316	};	3005	};
2317		3006
2318	cfg_load;	3007	cfg_load;
2319	db_load;	3008	db_init;
2320	load_extensions;	3009	load_extensions;
2321		3010
2322	$TICK_WATCHER->start;	3011	$TICK_WATCHER->start;
2323	Event::loop;	3012	Event::loop;
2324	}	3013	}
…		…
2339	},	3028	},
2340	);	3029	);
2341	}	3030	}
2342	}	3031	}
2343		3032
		3033	sub write_runtime {
		3034	my $runtime = "$LOCALDIR/runtime";
		3035
		3036	# first touch the runtime file to show we are still running:
		3037	# the fsync below can take a very very long time.
		3038
		3039	IO::AIO::aio_utime $runtime, undef, undef;
		3040
		3041	my $guard = cf::lock_acquire "write_runtime";
		3042
		3043	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3044	or return;
		3045
		3046	my $value = $cf::RUNTIME + 90 + 10;
		3047	# 10 is the runtime save interval, for a monotonic clock
		3048	# 60 allows for the watchdog to kill the server.
		3049
		3050	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3051	and return;
		3052
		3053	# always fsync - this file is important
		3054	aio_fsync $fh
		3055	and return;
		3056
		3057	# touch it again to show we are up-to-date
		3058	aio_utime $fh, undef, undef;
		3059
		3060	close $fh
		3061	or return;
		3062
		3063	aio_rename "$runtime~", $runtime
		3064	and return;
		3065
		3066	warn "runtime file written.\n";
		3067
		3068	1
		3069	}
		3070
2344	sub emergency_save() {	3071	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3072	my $freeze_guard = cf::freeze_mainloop;
2346		3073
2347	warn "enter emergency perl save\n";	3074	warn "enter emergency perl save\n";
2348		3075
…		…
2363	my $map = $cf::MAP{$path} or next;	3090	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3091	$map->valid or next;
2365	$map->save;	3092	$map->save;
2366	}	3093	}
2367	warn "end emergency map save\n";	3094	warn "end emergency map save\n";
		3095
		3096	warn "begin emergency database checkpoint\n";
		3097	BDB::db_env_txn_checkpoint $DB_ENV;
		3098	warn "end emergency database checkpoint\n";
2368	};	3099	};
2369		3100
2370	warn "leave emergency perl save\n";	3101	warn "leave emergency perl save\n";
2371	}	3102	}
2372		3103
		3104	sub post_cleanup {
		3105	my ($make_core) = @_;
		3106
		3107	warn Carp::longmess "post_cleanup backtrace"
		3108	if $make_core;
		3109	}
		3110
2373	sub reload() {	3111	sub do_reload_perl() {
2374	# can/must only be called in main	3112	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	3113	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	3114	warn "can only reload from main coroutine";
2377	return;	3115	return;
2378	}	3116	}
2379		3117
2380	warn "reloading...";	3118	warn "reloading...";
2381		3119
2382	warn "cancelling server ticker";	3120	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		3121
		3122	cf::sync_job {
		3123	cf::write_runtime; # external watchdog should not bark
2385	cf::emergency_save;	3124	cf::emergency_save;
		3125	cf::write_runtime; # external watchdog should not bark
2386		3126
2387	eval {	3127	warn "syncing database to disk";
		3128	BDB::db_env_txn_checkpoint $DB_ENV;
		3129
2388	# if anything goes wrong in here, we should simply crash as we already saved	3130	# if anything goes wrong in here, we should simply crash as we already saved
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392		3131
2393	warn "cancelling all WF_AUTOCANCEL watchers";	3132	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {	3133	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;	3134	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}	3135	}
2397		3136
2398	warn "flushing outstanding aio requests";	3137	warn "flushing outstanding aio requests";
2399	for (;;) {	3138	for (;;) {
		3139	BDB::flush;
2400	IO::AIO::flush;	3140	IO::AIO::flush;
2401	Coro::cede;	3141	Coro::cede;
2402	last unless IO::AIO::nreqs;	3142	last unless IO::AIO::nreqs || BDB::nreqs;
2403	warn "iterate...";	3143	warn "iterate...";
2404	}	3144	}
		3145
		3146	++$RELOAD;
2405		3147
2406	warn "cancelling all extension coros";	3148	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	3149	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	3150	%EXT_CORO = ();
2409		3151
2410	warn "removing commands";	3152	warn "removing commands";
2411	%COMMAND = ();	3153	%COMMAND = ();
2412		3154
2413	warn "removing ext commands";	3155	warn "removing ext/exti commands";
2414	%EXTCMD = ();	3156	%EXTCMD = ();
		3157	%EXTICMD = ();
2415		3158
2416	warn "unloading/nuking all extensions";	3159	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {	3160	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";	3161	warn "... unloading $pkg";
2419		3162
…		…
2449	Symbol::delete_package "safe::$_"	3192	Symbol::delete_package "safe::$_"
2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3193	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2451		3194
2452	warn "unloading cf.pm \"a bit\"";	3195	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	3196	delete $INC{"cf.pm"};
		3197	delete $INC{"cf/pod.pm"};
2454		3198
2455	# don't, removes xs symbols, too,	3199	# don't, removes xs symbols, too,
2456	# and global variables created in xs	3200	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	3201	#Symbol::delete_package __PACKAGE__;
2458		3202
…		…
2462	require cf;	3206	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3207	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2464		3208
2465	warn "loading config and database again";	3209	warn "loading config and database again";
2466	cf::cfg_load;	3210	cf::cfg_load;
2467	cf::db_load;
2468		3211
2469	warn "loading extensions";	3212	warn "loading extensions";
2470	cf::load_extensions;	3213	cf::load_extensions;
2471		3214
2472	warn "reattaching attachments to objects/players";	3215	warn "reattaching attachments to objects/players";
2473	_global_reattach;	3216	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	3217	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	3218	reattach $_ for values %MAP;
		3219	warn "reattaching attachments to players";
		3220	reattach $_ for values %PLAYER;
2476		3221
2477	warn "loading reloadable resources";	3222	warn "leaving sync_job";
2478	load_resources;
2479		3223
2480	warn "restarting server ticker";	3224	1
2481		3225	} or do {
2482	$TICK_WATCHER->start;
2483	};
2484
2485	if ($@) {
2486	warn $@;	3226	warn $@;
2487	warn "error while reloading, exiting.";	3227	warn "error while reloading, exiting.";
2488	exit 1;	3228	exit 1;
2489	}	3229	};
2490		3230
2491	warn "reloaded";	3231	warn "reloaded";
2492	};	3232	};
2493		3233
2494	our $RELOAD_WATCHER; # used only during reload	3234	our $RELOAD_WATCHER; # used only during reload
2495		3235
		3236	sub reload_perl() {
		3237	# doing reload synchronously and two reloads happen back-to-back,
		3238	# coro crashes during coro_state_free->destroy here.
		3239
		3240	$RELOAD_WATCHER ||= Event->timer (
		3241	reentrant => 0,
		3242	after => 0,
		3243	data => WF_AUTOCANCEL,
		3244	cb => sub {
		3245	do_reload_perl;
		3246	undef $RELOAD_WATCHER;
		3247	},
		3248	);
		3249	}
		3250
2496	register_command "reload" => sub {	3251	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3252	my ($who, $arg) = @_;
2498		3253
2499	if ($who->flag (FLAG_WIZ)) {	3254	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3255	$who->message ("reloading server.");
2501		3256	async { reload_perl };
2502	# doing reload synchronously and two reloads happen back-to-back,
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);
2514	}	3257	}
2515	};	3258	};
2516		3259
2517	unshift @INC, $LIBDIR;	3260	unshift @INC, $LIBDIR;
2518		3261
2519	my $bug_warning = 0;	3262	my $bug_warning = 0;
2520		3263
		3264	our @WAIT_FOR_TICK;
		3265	our @WAIT_FOR_TICK_BEGIN;
		3266
		3267	sub wait_for_tick {
		3268	return unless $TICK_WATCHER->is_active;
		3269	return if $Coro::current == $Coro::main;
		3270
		3271	my $signal = new Coro::Signal;
		3272	push @WAIT_FOR_TICK, $signal;
		3273	$signal->wait;
		3274	}
		3275
		3276	sub wait_for_tick_begin {
		3277	return unless $TICK_WATCHER->is_active;
		3278	return if $Coro::current == $Coro::main;
		3279
		3280	my $signal = new Coro::Signal;
		3281	push @WAIT_FOR_TICK_BEGIN, $signal;
		3282	$signal->wait;
		3283	}
		3284
		3285	my $min = 1e6;#d#
		3286	my $avg = 10;
2521	$TICK_WATCHER = Event->timer (	3287	$TICK_WATCHER = Event->timer (
2522	reentrant => 0,	3288	reentrant => 0,
2523	parked => 1,	3289	parked => 1,
2524	prio => 0,	3290	prio => 0,
2525	at => $NEXT_TICK || $TICK,	3291	at => $NEXT_TICK || $TICK,
…		…
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3295	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	3296	unless ++$bug_warning > 10;
2531	return;	3297	return;
2532	}	3298	}
2533		3299
2534	$NOW = Event::time;	3300	$NOW = $tick_start = Event::time;
2535		3301
2536	cf::server_tick; # one server iteration	3302	cf::server_tick; # one server iteration
		3303
		3304	0 && sync_job {#d#
		3305	for(1..10) {
		3306	my $t = Event::time;
		3307	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3308	or die;
		3309
		3310	$map->width (50);
		3311	$map->height (50);
		3312	$map->alloc;
		3313	$map->_load_objects ("/tmp/x.map", 1);
		3314	my $t = Event::time - $t;
		3315
		3316	#next unless $t < 0.0013;#d#
		3317	if ($t < $min) {
		3318	$min = $t;
		3319	}
		3320	$avg = $avg * 0.99 + $t * 0.01;
		3321	}
		3322	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3323	exit 0;
		3324	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3325	};
		3326
2537	$RUNTIME += $TICK;	3327	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;	3328	$NEXT_TICK += $TICK;
2539		3329
2540	$WAIT_FOR_TICK->broadcast;	3330	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3331	$NEXT_RUNTIME_WRITE = $NOW + 10;
2542		3332	Coro::async_pool {
2543	Event::sweep;	3333	write_runtime
2544	Coro::cede_notself;	3334	or warn "ERROR: unable to write runtime file: $!";
		3335	};
2545		3336	}
		3337
2546	# my $AFTER = Event::time;	3338	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#	3339	# warn $AFTER - $NOW;#d#
2548		3340
		3341	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3342	$sig->send;
		3343	}
		3344	while (my $sig = shift @WAIT_FOR_TICK) {
		3345	$sig->send;
		3346	}
		3347
		3348	$NOW = Event::time;
		3349
2549	# if we are delayed by four ticks or more, skip them all	3350	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3351	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2551		3352
2552	$TICK_WATCHER->at ($NEXT_TICK);	3353	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;	3354	$TICK_WATCHER->start;
		3355
		3356	$LOAD = ($NOW - $tick_start) / $TICK;
		3357	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3358
		3359	_post_tick;
		3360
		3361
2554	},	3362	},
2555	);	3363	);
2556		3364
		3365	{
		3366	BDB::max_poll_time $TICK * 0.1;
		3367	$BDB_POLL_WATCHER = Event->io (
		3368	reentrant => 0,
		3369	fd => BDB::poll_fileno,
		3370	poll => 'r',
		3371	prio => 0,
		3372	data => WF_AUTOCANCEL,
		3373	cb => \&BDB::poll_cb,
		3374	);
		3375	BDB::min_parallel 8;
		3376
		3377	BDB::set_sync_prepare {
		3378	my $status;
		3379	my $current = $Coro::current;
		3380	(
		3381	sub {
		3382	$status = $!;
		3383	$current->ready; undef $current;
		3384	},
		3385	sub {
		3386	Coro::schedule while defined $current;
		3387	$! = $status;
		3388	},
		3389	)
		3390	};
		3391
		3392	unless ($DB_ENV) {
		3393	$DB_ENV = BDB::db_env_create;
		3394
		3395	cf::sync_job {
		3396	eval {
		3397	BDB::db_env_open
		3398	$DB_ENV,
		3399	$BDBDIR,
		3400	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3401	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3402	0666;
		3403
		3404	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3405
		3406	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3407	$DB_ENV->set_lk_detect;
		3408	};
		3409
		3410	cf::cleanup "db_env_open(db): $@" if $@;
		3411	};
		3412	}
		3413	}
		3414
		3415	{
		3416	IO::AIO::min_parallel 8;
		3417
		3418	undef $Coro::AIO::WATCHER;
2557	IO::AIO::max_poll_time $TICK * 0.1;	3419	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (	3420	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,	3421	reentrant => 0,
		3422	data => WF_AUTOCANCEL,
2562	fd => IO::AIO::poll_fileno,	3423	fd => IO::AIO::poll_fileno,
2563	poll => 'r',	3424	poll => 'r',
2564	prio => 6,	3425	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,	3426	cb => \&IO::AIO::poll_cb,
2567	);	3427	);
		3428	}
2568		3429
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	3430	my $_log_backtrace;
2570	reentrant => 0,	3431
2571	data => WF_AUTOCANCEL,	3432	sub _log_backtrace {
2572	after => 1,	3433	my ($msg, @addr) = @_;
2573	interval => 10,	3434
2574	prio => 6, # keep it lowest so it acts like a watchdog	3435	$msg =~ s/\n//;
2575	cb => Coro::unblock_sub {	3436
2576	write_runtime	3437	# limit the # of concurrent backtraces
2577	or warn "ERROR: unable to write runtime file: $!";	3438	if ($_log_backtrace < 2) {
		3439	++$_log_backtrace;
		3440	async {
		3441	my @bt = fork_call {
		3442	@addr = map { sprintf "%x", $_ } @addr;
		3443	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3444	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3445	or die "addr2line: $!";
		3446
		3447	my @funcs;
		3448	my @res = <$fh>;
		3449	chomp for @res;
		3450	while (@res) {
		3451	my ($func, $line) = splice @res, 0, 2, ();
		3452	push @funcs, "[$func] $line";
		3453	}
		3454
		3455	@funcs
		3456	};
		3457
		3458	LOG llevInfo, "[ABT] $msg\n";
		3459	LOG llevInfo, "[ABT] $_\n" for @bt;
		3460	--$_log_backtrace;
		3461	};
		3462	} else {
		3463	LOG llevInfo, "[ABT] $msg\n";
		3464	LOG llevInfo, "[ABT] [suppressed]\n";
2578	},	3465	}
2579	);	3466	}
		3467
		3468	# load additional modules
		3469	use cf::pod;
2580		3470
2581	END { cf::emergency_save }	3471	END { cf::emergency_save }
2582		3472
2583	1	3473	1
2584		3474

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