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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.151 by root, Mon Jan 8 20:59:15 2007 UTC vs.
Revision 1.386 by root, Mon Oct 15 17:50:27 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 Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		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;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.32 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	136	every server tick.
92		137
93	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
105		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
122		194
123	LOG llevError, $msg;	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
126		198
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		206
134	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	208	# within the Safe compartment.
136	for my $pkg (qw(	209	for my $pkg (qw(
137	cf::global cf::attachable	210	cf::global cf::attachable
…		…
146		219
147	$Event::DIED = sub {	220	$Event::DIED = sub {
148	warn "error in event callback: @_";	221	warn "error in event callback: @_";
149	};	222	};
150		223
151	my %ext_pkg;	224	#############################################################################
152	my @exts;
153	my @hook;
154		225
155	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
156		227
157	=over 4	228	=over 4
158		229
159	=cut	230	=item dumpval $ref
160		231
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
162		252
163	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
164		254
165	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
166		256
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
175		258
176	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
177		260
178	=cut	261	=cut
179		262
180	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
182	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
184		267
185	=item cf::lock_wait $string	268	=item cf::lock_wait $string
186		269
187	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
188		271
…		…
191	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
194	returned.	277	returned.
195		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
196	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
198		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
199	=cut	289	=cut
200		290
201	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
202		293
203	sub lock_wait($) {	294	sub lock_wait($) {
204	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
205		301
206	# wait for lock, if any	302	# wait for lock, if any
207	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	305	Coro::schedule;
…		…
215		311
216	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
217	lock_wait $key;	313	lock_wait $key;
218		314
219	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
220		317
221	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
224	}	322	}
225	}	323	}
226		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
227	sub freeze_mainloop {	331	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
229		333
230	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
231	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
232	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
233	}	397	}
234		398
235	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
236		400
237	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		406
243	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
244		408
245	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
246		410
247	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
250		415
251	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
254	fast or be very important.	419	fast or be very important.
…		…
257		422
258	sub sync_job(&) {	423	sub sync_job(&) {
259	my ($job) = @_;	424	my ($job) = @_;
260		425
261	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
262	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
264		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
265	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	435	# (but this is cancel-safe)
267	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
268		437
269	my $busy = 1;	438	my $busy = 1;
270	my @res;	439	my @res;
271		440
272	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	443	@res = eval { $job->() };
274	warn $@ if $@;	444	warn $@ if $@;
275	undef $busy;	445	undef $busy;
276	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
277		447
278	while ($busy) {	448	while ($busy) {
279	Coro::cede or Event::one_event;	449	Coro::cede or Event::one_event;
280	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
281		458
282	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
283	} else {	460	} else {
284	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
285		462
…		…
287	}	464	}
288	}	465	}
289		466
290	=item $coro = cf::async_ext { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
291		468
292	Like async, but this coro is automcatially being canceled when the	469	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	470	extension calling this is being unloaded.
294		471
295	=cut	472	=cut
296		473
297	sub async_ext(&) {	474	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
306		483
307	$coro	484	$coro
308	}	485	}
309		486
310	sub write_runtime {	487	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		488
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
314	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
315		493
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		495
320	aio_fsync $fh	496	sub fork_call(&@) {
321	and return;	497	my ($cb, @args) = @_;
322		498
323	close $fh	499	# we seemingly have to make a local copy of the whole thing,
324	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
325		502
326	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
327	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
328		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
329	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	647	}
331		648
332	=back	649	=back
333		650
334	=cut	651	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		652
456	#############################################################################	653	#############################################################################
457		654
458	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
459		656
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
463		660
464	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	663	Crossfire TRT).
467		664
468	=over 4	665	=over 4
469		666
470	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
471		668
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	783	our @CB_MAP = ();
587		784
588	my %attachment;	785	my %attachment;
589		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
590	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
592		795
593	use sort 'stable';	796	use sort 'stable';
594		797
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
629		832
630	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		837
635	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	839	my $pkg = shift @arg;
637		840
638	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
668	}	871	}
669		872
670	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
671	} else {	874	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	876	}
674		877
675	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
676	}	879	}
677		880
…		…
679	if (ref $_[0]) {	882	if (ref $_[0]) {
680	_object_attach @_;	883	_object_attach @_;
681	} else {	884	} else {
682	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
683	}	886	}
		887	_recalc_want;
684	};	888	};
685		889
686	# all those should be optimised	890	# all those should be optimised
687	sub cf::attachable::detach {	891	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
692	reattach ($obj);	896	reattach ($obj);
693	} else {	897	} else {
694	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
695	}	899	}
		900	_recalc_want;
696	};	901	};
697		902
698	sub cf::attachable::attached {	903	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
700		905
…		…
715	";	920	";
716	die if $@;	921	die if $@;
717	}	922	}
718		923
719	our $override;	924	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		926
722	sub override {	927	sub override {
723	$override = 1;	928	$override = 1;
724	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
725	}	930	}
726		931
727	sub do_invoke {	932	sub do_invoke {
728	my $event = shift;	933	my $event = shift;
729	my $callbacks = shift;	934	my $callbacks = shift;
730		935
731	@invoke_results = ();	936	@INVOKE_RESULTS = ();
732		937
733	local $override;	938	local $override;
734		939
735	for (@$callbacks) {	940	for (@$callbacks) {
736	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
753		958
754	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
755		960
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		964
760	=back	965	=back
761		966
762	=cut	967	=cut
763		968
764	#############################################################################	969	#############################################################################
765	# object support	970	# object support
		971
		972	sub _object_equal($$);
		973	sub _object_equal($$) {
		974	my ($a, $b) = @_;
		975
		976	return 0 unless (ref $a) eq (ref $b);
		977
		978	if ("HASH" eq ref $a) {
		979	my @ka = keys %$a;
		980	my @kb = keys %$b;
		981
		982	return 0 if @ka != @kb;
		983
		984	for (0 .. $#ka) {
		985	return 0 unless $ka[$_] eq $kb[$_];
		986	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		987	}
		988
		989	} elsif ("ARRAY" eq ref $a) {
		990
		991	return 0 if @$a != @$b;
		992
		993	for (0 .. $#$a) {
		994	return 0 unless _object_equal $a->[$_], $b->[$_];
		995	}
		996
		997	} elsif ($a ne $b) {
		998	return 0;
		999	}
		1000
		1001	1
		1002	}
		1003
		1004	our $SLOW_MERGES;#d#
		1005	sub _can_merge {
		1006	my ($ob1, $ob2) = @_;
		1007
		1008	++$SLOW_MERGES;#d#
		1009
		1010	# we do the slow way here
		1011	return _object_equal $ob1, $ob2
		1012	}
766		1013
767	sub reattach {	1014	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1015	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1016	my ($obj) = @_;
		1017
		1018	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1019
771	my $registry = $obj->registry;	1020	my $registry = $obj->registry;
772		1021
773	@$registry = ();	1022	@$registry = ();
774		1023
…		…
815	sub object_freezer_save {	1064	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1065	my ($filename, $rdata, $objs) = @_;
817		1066
818	sync_job {	1067	sync_job {
819	if (length $$rdata) {	1068	if (length $$rdata) {
		1069	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1070	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1071	$decname, length $$rdata, scalar @$objs;
822		1072
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1073	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1074	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1075	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1076	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1077	close $fh;
828		1078
829	if (@$objs) {	1079	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1080	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1081	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1082	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1083	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1084	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1085	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1086	aio_rename "$filename.pst~", "$filename.pst";
837	}	1087	}
838	} else {	1088	} else {
839	aio_unlink "$filename.pst";	1089	aio_unlink "$filename.pst";
…		…
845	}	1095	}
846	} else {	1096	} else {
847	aio_unlink $filename;	1097	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1098	aio_unlink "$filename.pst";
849	}	1099	}
850	}	1100	};
851	}	1101	}
852		1102
853	sub object_freezer_as_string {	1103	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1104	my ($rdata, $objs) = @_;
855		1105
…		…
867	or return;	1117	or return;
868		1118
869	unless (aio_stat "$filename.pst") {	1119	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1120	(aio_load "$filename.pst", $av) >= 0
871	or return;	1121	or return;
872	$av = eval { (Storable::thaw $av)->{objs} };
873	}
874		1122
		1123	my $st = eval { Coro::Storable::thaw $av }
		1124	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1125	$av = $st->{objs};
		1126	}
		1127
		1128	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1129	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1130	$decname, length $data, scalar @{$av || []};
		1131
877	return ($data, $av);	1132	($data, $av)
878	}	1133	}
		1134
		1135	=head2 COMMAND CALLBACKS
		1136
		1137	=over 4
		1138
		1139	=cut
879		1140
880	#############################################################################	1141	#############################################################################
881	# command handling &c	1142	# command handling &c
882		1143
883	=item cf::register_command $name => \&callback($ob,$args);	1144	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1157	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1158	}
898		1159
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1160	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1161
901	Register a callbackf ro execution when the client sends an extcmd packet.	1162	Register a callback for execution when the client sends an (synchronous)
		1163	extcmd packet. Ext commands will be processed in the order they are
		1164	received by the server, like other user commands. The first argument is
		1165	the logged-in player. Ext commands can only be processed after a player
		1166	has logged in successfully.
902		1167
903	If the callback returns something, it is sent back as if reply was being	1168	If the callback returns something, it is sent back as if reply was being
904	called.	1169	called.
905		1170
		1171	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1172
		1173	Register a callback for execution when the client sends an (asynchronous)
		1174	exticmd packet. Exti commands are processed by the server as soon as they
		1175	are received, i.e. out of order w.r.t. other commands. The first argument
		1176	is a client socket. Exti commands can be received anytime, even before
		1177	log-in.
		1178
		1179	If the callback returns something, it is sent back as if reply was being
		1180	called.
		1181
906	=cut	1182	=cut
907		1183
908	sub register_extcmd {	1184	sub register_extcmd {
909	my ($name, $cb) = @_;	1185	my ($name, $cb) = @_;
910		1186
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1187	$EXTCMD{$name} = $cb;
		1188	}
		1189
		1190	sub register_exticmd {
		1191	my ($name, $cb) = @_;
		1192
		1193	$EXTICMD{$name} = $cb;
915	}	1194	}
916		1195
917	cf::player->attach (	1196	cf::player->attach (
918	on_command => sub {	1197	on_command => sub {
919	my ($pl, $name, $params) = @_;	1198	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1207	cf::override;
929	},	1208	},
930	on_extcmd => sub {	1209	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1210	my ($pl, $buf) = @_;
932		1211
933	my $msg = eval { from_json $buf };	1212	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1213
935	if (ref $msg) {	1214	if (ref $msg) {
		1215	my ($type, $reply, @payload) =
		1216	"ARRAY" eq ref $msg
		1217	? @$msg
		1218	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1219
		1220	my @reply;
		1221
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1222	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1223	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1224	}
		1225
		1226	$pl->ext_reply ($reply, @reply)
		1227	if $reply;
		1228
941	} else {	1229	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1230	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1231	}
944		1232
945	cf::override;	1233	cf::override;
946	},	1234	},
947	);	1235	);
948		1236
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1237	sub load_extensions {
		1238	cf::sync_job {
		1239	my %todo;
		1240
1026	for my $ext (<$LIBDIR/*.ext>) {	1241	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1242	next unless -r $path;
1028	eval {	1243
1029	load_extension $ext;	1244	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1245	my $base = $1;
		1246	my $pkg = $1;
		1247	$pkg =~ s/[^[:word:]]/_/g;
		1248	$pkg = "ext::$pkg";
		1249
		1250	open my $fh, "<:utf8", $path
		1251	or die "$path: $!";
		1252
		1253	my $source = do { local $/; <$fh> };
		1254
		1255	my %ext = (
		1256	path => $path,
		1257	base => $base,
		1258	pkg => $pkg,
		1259	);
		1260
		1261	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1262	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1263
		1264	$ext{source} =
		1265	"package $pkg; use strict; use utf8;\n"
		1266	. "#line 1 \"$path\"\n{\n"
		1267	. $source
		1268	. "\n};\n1";
		1269
		1270	$todo{$base} = \%ext;
		1271	}
		1272
		1273	my %done;
		1274	while (%todo) {
		1275	my $progress;
		1276
		1277	while (my ($k, $v) = each %todo) {
		1278	for (split /,\s*/, $v->{meta}{depends}) {
		1279	goto skip
		1280	unless exists $done{$_};
		1281	}
		1282
		1283	warn "... loading '$k' into '$v->{pkg}'\n";
		1284
		1285	unless (eval $v->{source}) {
		1286	my $msg = $@ ? "$v->{path}: $@\n"
		1287	: "$v->{base}: extension inactive.\n";
		1288
		1289	if (exists $v->{meta}{mandatory}) {
		1290	warn $msg;
		1291	warn "mandatory extension failed to load, exiting.\n";
		1292	exit 1;
		1293	}
		1294
		1295	warn $msg;
		1296	}
		1297
		1298	$done{$k} = delete $todo{$k};
		1299	push @EXTS, $v->{pkg};
		1300	$progress = 1;
1030	1	1301	}
1031	} or warn "$ext not loaded: $@";	1302
		1303	skip:
		1304	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1305	unless $progress;
		1306	}
1032	}	1307	};
1033	}	1308	}
1034		1309
1035	#############################################################################	1310	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1311
1038	*cf::mapsupport::on_clean = sub {	1312	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1313
1073	=head2 CORE EXTENSIONS	1314	=head2 CORE EXTENSIONS
1074		1315
1075	Functions and methods that extend core crossfire objects.	1316	Functions and methods that extend core crossfire objects.
1076		1317
1077	=cut	1318	=cut
1078		1319
1079	package cf::player;	1320	package cf::player;
1080		1321
		1322	use Coro::AIO;
		1323
1081	=head3 cf::player	1324	=head3 cf::player
1082		1325
1083	=over 4	1326	=over 4
1084		1327
		1328	=item cf::player::num_playing
		1329
		1330	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1331
		1332	=cut
		1333
		1334	sub num_playing {
		1335	scalar grep
		1336	$_->ob->map
		1337	&& !$_->hidden
		1338	&& !$_->ob->flag (cf::FLAG_WIZ),
		1339	cf::player::list
		1340	}
		1341
1085	=item cf::player::find $login	1342	=item cf::player::find $login
1086		1343
1087	Returns the given player object, loading it if necessary (might block).	1344	Returns the given player object, loading it if necessary (might block).
1088		1345
1089	=cut	1346	=cut
1090		1347
1091	sub playerdir($) {	1348	sub playerdir($) {
1092	cf::localdir	1349	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1350	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1351	}
1098		1352
1099	sub path($) {	1353	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1354	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1355
1102	(playerdir $login) . "/$login.pl"	1356	(playerdir $login) . "/playerdata"
1103	}	1357	}
1104		1358
1105	sub find_active($) {	1359	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1360	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1361	and $cf::PLAYER{$_[0]}->active
…		…
1110		1364
1111	sub exists($) {	1365	sub exists($) {
1112	my ($login) = @_;	1366	my ($login) = @_;
1113		1367
1114	$cf::PLAYER{$login}	1368	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1369	or cf::sync_job { !aio_stat path $login }
1116	}	1370	}
1117		1371
1118	sub find($) {	1372	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1373	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1374	my $login = $_[0];
1121		1375
1122	my $guard = cf::lock_acquire "user_find:$login";	1376	my $guard = cf::lock_acquire "user_find:$login";
1123		1377
1124	$cf::PLAYER{$_[0]} || do {	1378	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1379	# rename old playerfiles to new ones
		1380	#TODO: remove when no longer required
		1381	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1382	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1383	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1384	aio_unlink +(playerdir $login) . "/$login.pl";
		1385
		1386	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1387	or return;
		1388
		1389	my $pl = cf::player::load_pl $f
		1390	or return;
		1391	local $cf::PLAYER_LOADING{$login} = $pl;
		1392	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1393	$cf::PLAYER{$login} = $pl
1128	}	1394	}
1129	}	1395	}
1130	}	1396	}
1131		1397
…		…
1137	my $path = path $pl;	1403	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1404	my $guard = cf::lock_acquire "user_save:$path";
1139		1405
1140	return if $pl->{deny_save};	1406	return if $pl->{deny_save};
1141		1407
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1408	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1409	$pl->{last_save} = $cf::RUNTIME;
1144		1410
1145	$pl->save_pl ($path);	1411	$pl->save_pl ($path);
1146	Coro::cede;	1412	cf::cede_to_tick;
1147	}	1413	}
1148		1414
1149	sub new($) {	1415	sub new($) {
1150	my ($login) = @_;	1416	my ($login) = @_;
1151		1417
…		…
1157	$cf::PLAYER{$login} = $self;	1423	$cf::PLAYER{$login} = $self;
1158		1424
1159	$self	1425	$self
1160	}	1426	}
1161		1427
		1428	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1429
		1430	=cut
		1431
		1432	sub send_msg {
		1433	my $ns = shift->ns
		1434	or return;
		1435	$ns->send_msg (@_);
		1436	}
		1437
		1438	=item $pl->quit_character
		1439
		1440	Nukes the player without looking back. If logged in, the connection will
		1441	be destroyed. May block for a long time.
		1442
		1443	=cut
		1444
1162	sub quit_character {	1445	sub quit_character {
1163	my ($pl) = @_;	1446	my ($pl) = @_;
		1447
		1448	my $name = $pl->ob->name;
1164		1449
1165	$pl->{deny_save} = 1;	1450	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1451	$pl->password ("*"); # this should lock out the player until we nuked the dir
1167		1452
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1453	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1455	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1456	$pl->ns->destroy if $pl->ns;
1172		1457
1173	my $path = playerdir $pl;	1458	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1459	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1460	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1461	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1462	$pl->destroy;
		1463
		1464	my $prefix = qr<^~\Q$name\E/>;
		1465
		1466	# nuke player maps
		1467	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1468
1178	IO::AIO::aio_rmtree $temp;	1469	IO::AIO::aio_rmtree $temp;
1179	}	1470	}
1180		1471
		1472	=item $pl->kick
		1473
		1474	Kicks a player out of the game. This destroys the connection.
		1475
		1476	=cut
		1477
		1478	sub kick {
		1479	my ($pl, $kicker) = @_;
		1480
		1481	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1482	$pl->killer ("kicked");
		1483	$pl->ns->destroy;
		1484	}
		1485
		1486	=item cf::player::list_logins
		1487
		1488	Returns am arrayref of all valid playernames in the system, can take a
		1489	while and may block, so not sync_job-capable, ever.
		1490
		1491	=cut
		1492
		1493	sub list_logins {
		1494	my $dirs = aio_readdir $PLAYERDIR
		1495	or return [];
		1496
		1497	my @logins;
		1498
		1499	for my $login (@$dirs) {
		1500	my $path = path $login;
		1501
		1502	# a .pst is a dead give-away for a valid player
		1503	unless (-e "$path.pst") {
		1504	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1505	aio_read $fh, 0, 512, my $buf, 0 or next;
		1506	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1507	}
		1508
		1509	utf8::decode $login;
		1510	push @logins, $login;
		1511	}
		1512
		1513	\@logins
		1514	}
		1515
		1516	=item $player->maps
		1517
		1518	Returns an arrayref of map paths that are private for this
		1519	player. May block.
		1520
		1521	=cut
		1522
		1523	sub maps($) {
		1524	my ($pl) = @_;
		1525
		1526	$pl = ref $pl ? $pl->ob->name : $pl;
		1527
		1528	my $files = aio_readdir playerdir $pl
		1529	or return;
		1530
		1531	my @paths;
		1532
		1533	for (@$files) {
		1534	utf8::decode $_;
		1535	next if /\.(?:pl|pst)$/;
		1536	next unless /^$PATH_SEP/o;
		1537
		1538	push @paths, cf::map::normalise "~$pl/$_";
		1539	}
		1540
		1541	\@paths
		1542	}
		1543
		1544	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1545
		1546	Expand crossfire pod fragments into protocol xml.
		1547
		1548	=cut
		1549
		1550	sub expand_cfpod {
		1551	((my $self), (local $_)) = @_;
		1552
		1553	# escape & and <
		1554	s/&/&amp;/g;
		1555	s/(?<![BIUGHT])</&lt;/g;
		1556
		1557	# this is buggy, it needs to properly take care of nested <'s
		1558
		1559	1 while
		1560	# replace B<>, I<>, U<> etc.
		1561	s/B<([^\>]*)>/<b>$1<\/b>/
		1562	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1563	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1564	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1565	# replace G<male|female> tags
		1566	|| s{G<([^>|]*)\|([^>]*)>}{
		1567	$self->gender ? $2 : $1
		1568	}ge
		1569	# replace H<hint text>
		1570	|| s{H<([^\>]*)>}
		1571	{
		1572	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1573	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1574	"")
		1575	[$self->{hintmode}]
		1576	}ge;
		1577
		1578	# create single paragraphs (very hackish)
		1579	s/(?<=\S)\n(?=\w)/ /g;
		1580
		1581	# compress some whitespace
		1582	s/\s+\n/\n/g; # ws line-ends
		1583	s/\n\n+/\n/g; # double lines
		1584	s/^\n+//; # beginning lines
		1585	s/\n+$//; # ending lines
		1586
		1587	$_
		1588	}
		1589
		1590	sub hintmode {
		1591	$_[0]{hintmode} = $_[1] if @_ > 1;
		1592	$_[0]{hintmode}
		1593	}
		1594
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1595	=item $player->ext_reply ($msgid, @msg)
1182		1596
1183	Sends an ext reply to the player.	1597	Sends an ext reply to the player.
1184		1598
1185	=cut	1599	=cut
1186		1600
1187	sub ext_reply($$$%) {	1601	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1602	my ($self, $id, @msg) = @_;
1189		1603
1190	$msg{msgid} = $id;	1604	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1605	}
1194		1606
1195	package cf;	1607	=item $player->ext_msg ($type, @msg)
		1608
		1609	Sends an ext event to the client.
		1610
		1611	=cut
		1612
		1613	sub ext_msg($$@) {
		1614	my ($self, $type, @msg) = @_;
		1615
		1616	$self->ns->ext_msg ($type, @msg);
		1617	}
		1618
		1619	=head3 cf::region
		1620
		1621	=over 4
		1622
		1623	=cut
		1624
		1625	package cf::region;
		1626
		1627	=item cf::region::find_by_path $path
		1628
		1629	Tries to decuce the likely region for a map knowing only its path.
		1630
		1631	=cut
		1632
		1633	sub find_by_path($) {
		1634	my ($path) = @_;
		1635
		1636	my ($match, $specificity);
		1637
		1638	for my $region (list) {
		1639	if ($region->{match} && $path =~ $region->{match}) {
		1640	($match, $specificity) = ($region, $region->specificity)
		1641	if $region->specificity > $specificity;
		1642	}
		1643	}
		1644
		1645	$match
		1646	}
1196		1647
1197	=back	1648	=back
1198
1199		1649
1200	=head3 cf::map	1650	=head3 cf::map
1201		1651
1202	=over 4	1652	=over 4
1203		1653
…		…
1206	package cf::map;	1656	package cf::map;
1207		1657
1208	use Fcntl;	1658	use Fcntl;
1209	use Coro::AIO;	1659	use Coro::AIO;
1210		1660
		1661	use overload
		1662	'""' => \&as_string,
		1663	fallback => 1;
		1664
1211	our $MAX_RESET = 3600;	1665	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1666	our $DEFAULT_RESET = 3000;
1213		1667
1214	sub generate_random_map {	1668	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1669	my ($self, $rmp) = @_;
1216
1217	# mit "rum" bekleckern, nicht	1670	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1671	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1672	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1673	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1674	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1675	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1676	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1677	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1678	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1679	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1680	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1681	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1682	(cf::region::find $rmp->{region}), $rmp->{custom}
		1683	)
		1684	}
		1685
		1686	=item cf::map->register ($regex, $prio)
		1687
		1688	Register a handler for the map path matching the given regex at the
		1689	givne priority (higher is better, built-in handlers have priority 0, the
		1690	default).
		1691
		1692	=cut
		1693
		1694	sub register {
		1695	my (undef, $regex, $prio) = @_;
		1696	my $pkg = caller;
		1697
		1698	no strict;
		1699	push @{"$pkg\::ISA"}, __PACKAGE__;
		1700
		1701	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1702	}
		1703
		1704	# also paths starting with '/'
		1705	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1706
		1707	sub thawer_merge {
		1708	my ($self, $merge) = @_;
		1709
		1710	# we have to keep some variables in memory intact
		1711	local $self->{path};
		1712	local $self->{load_path};
		1713
		1714	$self->SUPER::thawer_merge ($merge);
		1715	}
		1716
		1717	sub normalise {
		1718	my ($path, $base) = @_;
		1719
		1720	$path = "$path"; # make sure its a string
		1721
		1722	$path =~ s/\.map$//;
		1723
		1724	# map plan:
		1725	#
		1726	# /! non-realised random map exit (special hack!)
		1727	# {... are special paths that are not being touched
		1728	# ?xxx/... are special absolute paths
		1729	# ?random/... random maps
		1730	# /... normal maps
		1731	# ~user/... per-player map of a specific user
		1732
		1733	$path =~ s/$PATH_SEP/\//go;
		1734
		1735	# treat it as relative path if it starts with
		1736	# something that looks reasonable
		1737	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1738	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1739
		1740	$base =~ s{[^/]+/?$}{};
		1741	$path = "$base/$path";
		1742	}
		1743
		1744	for ($path) {
		1745	redo if s{//}{/};
		1746	redo if s{/\.?/}{/};
		1747	redo if s{/[^/]+/\.\./}{/};
		1748	}
		1749
		1750	$path
		1751	}
		1752
		1753	sub new_from_path {
		1754	my (undef, $path, $base) = @_;
		1755
		1756	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1757
		1758	$path = normalise $path, $base;
		1759
		1760	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1761	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1762	my $self = bless cf::map::new, $pkg;
		1763	$self->{path} = $path; $self->path ($path);
		1764	$self->init; # pass $1 etc.
		1765	return $self;
		1766	}
		1767	}
		1768
		1769	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1770	()
		1771	}
		1772
		1773	sub init {
		1774	my ($self) = @_;
		1775
		1776	$self
		1777	}
		1778
		1779	sub as_string {
		1780	my ($self) = @_;
		1781
		1782	"$self->{path}"
		1783	}
		1784
		1785	# the displayed name, this is a one way mapping
		1786	sub visible_name {
		1787	&as_string
		1788	}
		1789
		1790	# the original (read-only) location
		1791	sub load_path {
		1792	my ($self) = @_;
		1793
		1794	"$MAPDIR/$self->{path}.map"
		1795	}
		1796
		1797	# the temporary/swap location
		1798	sub save_path {
		1799	my ($self) = @_;
		1800
		1801	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1802	"$TMPDIR/$path.map"
		1803	}
		1804
		1805	# the unique path, undef == no special unique path
		1806	sub uniq_path {
		1807	my ($self) = @_;
		1808
		1809	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1810	"$UNIQUEDIR/$path"
1231	}	1811	}
1232		1812
1233	# and all this just because we cannot iterate over	1813	# and all this just because we cannot iterate over
1234	# all maps in C++...	1814	# all maps in C++...
1235	sub change_all_map_light {	1815	sub change_all_map_light {
…		…
1237		1817
1238	$_->change_map_light ($change)	1818	$_->change_map_light ($change)
1239	for grep $_->outdoor, values %cf::MAP;	1819	for grep $_->outdoor, values %cf::MAP;
1240	}	1820	}
1241		1821
		1822	sub decay_objects {
		1823	my ($self) = @_;
		1824
		1825	return if $self->{deny_reset};
		1826
		1827	$self->do_decay_objects;
		1828	}
		1829
		1830	sub unlink_save {
		1831	my ($self) = @_;
		1832
		1833	utf8::encode (my $save = $self->save_path);
		1834	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1835	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1836	}
		1837
1242	sub try_load_header($) {	1838	sub load_header_from($) {
1243	my ($path) = @_;	1839	my ($self, $path) = @_;
1244		1840
1245	utf8::encode $path;	1841	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1842	my $f = new_from_file cf::object::thawer $path
1247	or return;	1843	or return;
1248		1844
1249	my $map = cf::map::new	1845	$self->_load_header ($f)
1250	or return;	1846	or return;
1251		1847
1252	# for better error messages only, will be overwritten	1848	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	1849	$f->resolve_delayed_derefs;
1254		1850
1255	$map->load_header ($path)	1851	$self->{load_path} = $path;
		1852
		1853	1
		1854	}
		1855
		1856	sub load_header_orig {
		1857	my ($self) = @_;
		1858
		1859	$self->load_header_from ($self->load_path)
		1860	}
		1861
		1862	sub load_header_temp {
		1863	my ($self) = @_;
		1864
		1865	$self->load_header_from ($self->save_path)
		1866	}
		1867
		1868	sub prepare_temp {
		1869	my ($self) = @_;
		1870
		1871	$self->last_access ((delete $self->{last_access})
		1872	|| $cf::RUNTIME); #d#
		1873	# safety
		1874	$self->{instantiate_time} = $cf::RUNTIME
		1875	if $self->{instantiate_time} > $cf::RUNTIME;
		1876	}
		1877
		1878	sub prepare_orig {
		1879	my ($self) = @_;
		1880
		1881	$self->{load_original} = 1;
		1882	$self->{instantiate_time} = $cf::RUNTIME;
		1883	$self->last_access ($cf::RUNTIME);
		1884	$self->instantiate;
		1885	}
		1886
		1887	sub load_header {
		1888	my ($self) = @_;
		1889
		1890	if ($self->load_header_temp) {
		1891	$self->prepare_temp;
		1892	} else {
		1893	$self->load_header_orig
1256	or return;	1894	or return;
		1895	$self->prepare_orig;
		1896	}
1257		1897
1258	$map->{load_path} = $path;	1898	$self->{deny_reset} = 1
		1899	if $self->no_reset;
1259		1900
1260	$map	1901	$self->default_region (cf::region::find_by_path $self->{path})
		1902	unless $self->default_region;
		1903
		1904	1
1261	}	1905	}
1262		1906
1263	sub find;	1907	sub find;
1264	sub find {	1908	sub find {
1265	my ($path, $origin) = @_;	1909	my ($path, $origin) = @_;
1266		1910
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	1911	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		1912
		1913	cf::lock_wait "map_data:$path";#d#remove
1272	cf::lock_wait "map_find:$key";	1914	cf::lock_wait "map_find:$path";
1273		1915
1274	$cf::MAP{$key} || do {	1916	$cf::MAP{$path} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	1917	my $guard1 = cf::lock_acquire "map_find:$path";
		1918	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1276		1919
1277	# do it the slow way	1920	my $map = new_from_path cf::map $path
1278	my $map = try_load_header $path->save_path;
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	1921	or return;
1296		1922
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	1923	$map->{last_save} = $cf::RUNTIME;
1309		1924
1310	Coro::cede;	1925	$map->load_header
		1926	or return;
1311		1927
1312	if ($map->should_reset) {	1928	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1929	# doing this can freeze the server in a sync job, obviously
		1930	#$cf::WAIT_FOR_TICK->wait;
		1931	undef $guard1;
		1932	undef $guard2;
1313	$map->reset;	1933	$map->reset;
1314	undef $guard;
1315	$map = find $path	1934	return find $path;
1316	or return;
1317	}	1935	}
1318		1936
1319	$cf::MAP{$key} = $map	1937	$cf::MAP{$path} = $map
1320	}	1938	}
1321	}	1939	}
		1940
		1941	sub pre_load { }
		1942	sub post_load { }
1322		1943
1323	sub load {	1944	sub load {
1324	my ($self) = @_;	1945	my ($self) = @_;
1325		1946
		1947	local $self->{deny_reset} = 1; # loading can take a long time
		1948
1326	my $path = $self->{path};	1949	my $path = $self->{path};
		1950
		1951	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1952	my $guard = cf::lock_acquire "map_data:$path";
1328		1953
		1954	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	1955	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		1956
1331	$self->in_memory (cf::MAP_LOADING);	1957	$self->in_memory (cf::MAP_LOADING);
1332		1958
1333	$self->alloc;	1959	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	1960
		1961	$self->pre_load;
		1962	cf::cede_to_tick;
		1963
		1964	my $f = new_from_file cf::object::thawer $self->{load_path};
		1965	$f->skip_block;
		1966	$self->_load_objects ($f)
1335	or return;	1967	or return;
1336		1968
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1969	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1338	if delete $self->{load_original};	1970	if delete $self->{load_original};
1339		1971
1340	if (my $uniq = $path->uniq_path) {	1972	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	1973	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	1974	unless (aio_stat $uniq) {
		1975	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	1976	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	1977	$self->_load_objects ($f);
		1978	$f->resolve_delayed_derefs;
		1979	}
1345	}	1980	}
1346	}	1981	}
1347		1982
1348	Coro::cede;	1983	$f->resolve_delayed_derefs;
1349		1984
		1985	cf::cede_to_tick;
1350	# now do the right thing for maps	1986	# now do the right thing for maps
1351	$self->link_multipart_objects;	1987	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	1988	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	1989	unless $self->difficulty;
		1990	cf::cede_to_tick;
		1991
		1992	unless ($self->{deny_activate}) {
		1993	$self->decay_objects;
		1994	$self->fix_auto_apply;
		1995	$self->update_buttons;
		1996	cf::cede_to_tick;
		1997	$self->set_darkness_map;
		1998	cf::cede_to_tick;
1363	$self->activate;	1999	$self->activate;
1364	}	2000	}
1365		2001
1366	Coro::cede;	2002	$self->{last_save} = $cf::RUNTIME;
		2003	$self->last_access ($cf::RUNTIME);
1367		2004
1368	$self->in_memory (cf::MAP_IN_MEMORY);	2005	$self->in_memory (cf::MAP_IN_MEMORY);
		2006	}
		2007
		2008	$self->post_load;
		2009	}
		2010
		2011	sub customise_for {
		2012	my ($self, $ob) = @_;
		2013
		2014	return find "~" . $ob->name . "/" . $self->{path}
		2015	if $self->per_player;
		2016
		2017	# return find "?party/" . $ob->name . "/" . $self->{path}
		2018	# if $self->per_party;
		2019
		2020	$self
		2021	}
		2022
		2023	# find and load all maps in the 3x3 area around a map
		2024	sub load_neighbours {
		2025	my ($map) = @_;
		2026
		2027	my @neigh; # diagonal neighbours
		2028
		2029	for (0 .. 3) {
		2030	my $neigh = $map->tile_path ($_)
		2031	or next;
		2032	$neigh = find $neigh, $map
		2033	or next;
		2034	$neigh->load;
		2035
		2036	push @neigh,
		2037	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2038	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2039	}
		2040
		2041	for (grep defined $_->[0], @neigh) {
		2042	my ($path, $origin) = @$_;
		2043	my $neigh = find $path, $origin
		2044	or next;
		2045	$neigh->load;
		2046	}
1369	}	2047	}
1370		2048
1371	sub find_sync {	2049	sub find_sync {
1372	my ($path, $origin) = @_;	2050	my ($path, $origin) = @_;
1373		2051
1374	cf::sync_job { cf::map::find $path, $origin }	2052	cf::sync_job { find $path, $origin }
1375	}	2053	}
1376		2054
1377	sub do_load_sync {	2055	sub do_load_sync {
1378	my ($map) = @_;	2056	my ($map) = @_;
1379		2057
		2058	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2059	if $Coro::current == $Coro::main;
		2060
1380	cf::sync_job { $map->load };	2061	cf::sync_job { $map->load };
		2062	}
		2063
		2064	our %MAP_PREFETCH;
		2065	our $MAP_PREFETCHER = undef;
		2066
		2067	sub find_async {
		2068	my ($path, $origin, $load) = @_;
		2069
		2070	$path = normalise $path, $origin && $origin->{path};
		2071
		2072	if (my $map = $cf::MAP{$path}) {
		2073	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2074	}
		2075
		2076	$MAP_PREFETCH{$path} |= $load;
		2077
		2078	$MAP_PREFETCHER ||= cf::async {
		2079	$Coro::current->{desc} = "map prefetcher";
		2080
		2081	while (%MAP_PREFETCH) {
		2082	while (my ($k, $v) = each %MAP_PREFETCH) {
		2083	if (my $map = find $k) {
		2084	$map->load if $v;
		2085	}
		2086
		2087	delete $MAP_PREFETCH{$k};
		2088	}
		2089	}
		2090	undef $MAP_PREFETCHER;
		2091	};
		2092	$MAP_PREFETCHER->prio (6);
		2093
		2094	()
1381	}	2095	}
1382		2096
1383	sub save {	2097	sub save {
1384	my ($self) = @_;	2098	my ($self) = @_;
1385		2099
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2101
1388	$self->{last_save} = $cf::RUNTIME;	2102	$self->{last_save} = $cf::RUNTIME;
1389		2103
1390	return unless $self->dirty;	2104	return unless $self->dirty;
1391		2105
1392	my $save = $self->{path}->save_path; utf8::encode $save;	2106	my $save = $self->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2107	my $uniq = $self->uniq_path; utf8::encode $uniq;
1394		2108
1395	$self->{load_path} = $save;	2109	$self->{load_path} = $save;
1396		2110
1397	return if $self->{deny_save};	2111	return if $self->{deny_save};
1398		2112
1399	local $self->{last_access} = $self->last_access;#d#	2113	local $self->{last_access} = $self->last_access;#d#
1400		2114
1401	cf::async {	2115	cf::async {
		2116	$Coro::current->{desc} = "map player save";
1402	$_->contr->save for $self->players;	2117	$_->contr->save for $self->players;
1403	};	2118	};
1404		2119
1405	if ($uniq) {	2120	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2121	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);	2122	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {	2123	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}	2125	}
1411	}	2126	}
1412		2127
1413	sub swap_out {	2128	sub swap_out {
1414	my ($self) = @_;	2129	my ($self) = @_;
1415		2130
1416	# save first because save cedes	2131	# save first because save cedes
1417	$self->save;	2132	$self->save;
1418		2133
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2135
1421	return if $self->players;	2136	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;	2137	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};	2138	return if $self->{deny_save};
1424		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	$self->deactivate;
		2143	$_->clear_links_to ($self) for values %cf::MAP;
1425	$self->clear;	2144	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2145	}
1428		2146
1429	sub reset_at {	2147	sub reset_at {
1430	my ($self) = @_;	2148	my ($self) = @_;
1431		2149
1432	# TODO: safety, remove and allow resettable per-player maps	2150	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2151	return 1e99 if $self->{deny_reset};
1435		2152
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2153	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2154	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2155
…		…
1443	my ($self) = @_;	2160	my ($self) = @_;
1444		2161
1445	$self->reset_at <= $cf::RUNTIME	2162	$self->reset_at <= $cf::RUNTIME
1446	}	2163	}
1447		2164
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2165	sub reset {
1470	my ($self) = @_;	2166	my ($self) = @_;
1471		2167
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2168	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2169
1474	return if $self->players;	2170	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2171
1477	warn "resetting map ", $self->path;#d#	2172	warn "resetting map ", $self->path;
		2173
		2174	$self->in_memory (cf::MAP_SWAPPED);
		2175
		2176	# need to save uniques path
		2177	unless ($self->{deny_save}) {
		2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2179
		2180	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2181	if $uniq;
		2182	}
1478		2183
1479	delete $cf::MAP{$self->path};	2184	delete $cf::MAP{$self->path};
1480		2185
		2186	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2187	$_->clear_links_to ($self) for values %cf::MAP;
		2188	$self->clear;
1482		2189
1483	$self->unlink_save;	2190	$self->unlink_save;
1484	$self->destroy;	2191	$self->destroy;
1485	}	2192	}
1486		2193
1487	my $nuke_counter = "aaaa";	2194	my $nuke_counter = "aaaa";
1488		2195
1489	sub nuke {	2196	sub nuke {
1490	my ($self) = @_;	2197	my ($self) = @_;
1491		2198
		2199	{
		2200	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2201
		2202	delete $cf::MAP{$self->path};
		2203
		2204	$self->unlink_save;
		2205
		2206	bless $self, "cf::map";
		2207	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2208	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2209	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2210	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2211
		2212	$cf::MAP{$self->path} = $self;
		2213	}
		2214
1495	$self->reset; # polite request, might not happen	2215	$self->reset; # polite request, might not happen
1496	}	2216	}
1497		2217
1498	sub customise_for {	2218	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2219
1501	if ($map->per_player) {	2220	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2221	maps. May block.
		2222
		2223	=cut
		2224
		2225	sub tmp_maps() {
1503	}	2226	[
1504		2227	map {
1505	$map	2228	utf8::decode $_;
		2229	/\.map$/
		2230	? normalise $_
		2231	: ()
		2232	} @{ aio_readdir $TMPDIR or [] }
		2233	]
1506	}	2234	}
1507		2235
1508	sub emergency_save {	2236	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2237
1511	warn "enter emergency perl save\n";	2238	Returns an arrayref with all map paths of currently instantiated and saved
		2239	random maps. May block.
1512		2240
1513	cf::sync_job {	2241	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2242
1518	warn "begin emergency map save\n";	2243	sub random_maps() {
1519	$_->save for values %cf::MAP;	2244	[
1520	warn "end emergency map save\n";	2245	map {
1521	};	2246	utf8::decode $_;
		2247	/\.map$/
		2248	? normalise "?random/$_"
		2249	: ()
		2250	} @{ aio_readdir $RANDOMDIR or [] }
		2251	]
		2252	}
1522		2253
1523	warn "leave emergency perl save\n";	2254	=item cf::map::unique_maps
		2255
		2256	Returns an arrayref of paths of all shared maps that have
		2257	instantiated unique items. May block.
		2258
		2259	=cut
		2260
		2261	sub unique_maps() {
		2262	[
		2263	map {
		2264	utf8::decode $_;
		2265	/\.map$/
		2266	? normalise $_
		2267	: ()
		2268	} @{ aio_readdir $UNIQUEDIR or [] }
		2269	]
1524	}	2270	}
1525		2271
1526	package cf;	2272	package cf;
1527		2273
1528	=back	2274	=back
1529		2275
		2276	=head3 cf::object
		2277
		2278	=cut
		2279
		2280	package cf::object;
		2281
		2282	=over 4
		2283
		2284	=item $ob->inv_recursive
		2285
		2286	Returns the inventory of the object _and_ their inventories, recursively.
		2287
		2288	=cut
		2289
		2290	sub inv_recursive_;
		2291	sub inv_recursive_ {
		2292	map { $_, inv_recursive_ $_->inv } @_
		2293	}
		2294
		2295	sub inv_recursive {
		2296	inv_recursive_ inv $_[0]
		2297	}
		2298
		2299	=item $ref = $ob->ref
		2300
		2301	creates and returns a persistent reference to an objetc that can be stored as a string.
		2302
		2303	=item $ob = cf::object::deref ($refstring)
		2304
		2305	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2306	even if the object actually exists. May block.
		2307
		2308	=cut
		2309
		2310	sub deref {
		2311	my ($ref) = @_;
		2312
		2313	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2314	my ($uuid, $name) = ($1, $2);
		2315	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2316	or return;
		2317	$pl->ob->uuid eq $uuid
		2318	or return;
		2319
		2320	$pl->ob
		2321	} else {
		2322	warn "$ref: cannot resolve object reference\n";
		2323	undef
		2324	}
		2325	}
		2326
		2327	package cf;
		2328
		2329	=back
1530		2330
1531	=head3 cf::object::player	2331	=head3 cf::object::player
1532		2332
1533	=over 4	2333	=over 4
1534		2334
…		…
1548		2348
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2349	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2350
1551	if ($self->{record_replies}) {	2351	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2352	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2353
1553	} else {	2354	} else {
		2355	my $pl = $self->contr;
		2356
		2357	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2358	my $dialog = $pl->{npc_dialog};
		2359	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2360
		2361	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2362	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2363	$self->message ($msg, $flags);
		2364	}
1556	}	2365	}
		2366	}
		2367
		2368	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2369
		2370	=cut
		2371
		2372	sub cf::object::send_msg {
		2373	my $pl = shift->contr
		2374	or return;
		2375	$pl->send_msg (@_);
1557	}	2376	}
1558		2377
1559	=item $player_object->may ("access")	2378	=item $player_object->may ("access")
1560		2379
1561	Returns wether the given player is authorized to access resource "access"	2380	Returns wether the given player is authorized to access resource "access"
…		…
1574		2393
1575	=item $player_object->enter_link	2394	=item $player_object->enter_link
1576		2395
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2396	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2397
1579	The player should be reaosnably safe there for short amounts of time. You	2398	The player should be reasonably safe there for short amounts of time. You
1580	I<MUST> call C<leave_link> as soon as possible, though.	2399	I<MUST> call C<leave_link> as soon as possible, though.
1581		2400
		2401	Will never block.
		2402
1582	=item $player_object->leave_link ($map, $x, $y)	2403	=item $player_object->leave_link ($map, $x, $y)
1583		2404
1584	Moves the player out of the specila link map onto the given map. If the	2405	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2406	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2407	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2408	fails, to the emergency map position.
1588		2409
1589	Might block.	2410	Might block.
1590		2411
1591	=cut	2412	=cut
		2413
		2414	sub link_map {
		2415	unless ($LINK_MAP) {
		2416	$LINK_MAP = cf::map::find "{link}"
		2417	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2418	$LINK_MAP->load;
		2419	}
		2420
		2421	$LINK_MAP
		2422	}
1592		2423
1593	sub cf::object::player::enter_link {	2424	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2425	my ($self) = @_;
1595		2426
1596	$self->deactivate_recursive;	2427	$self->deactivate_recursive;
1597		2428
1598	return if $self->map == $LINK_MAP;	2429	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2430
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2431	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2432	if $self->map && $self->map->{path} ne "{link}";
1602		2433
1603	$self->enter_map ($LINK_MAP, 20, 20);	2434	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1604	}	2435	}
1605		2436
1606	sub cf::object::player::leave_link {	2437	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2438	my ($self, $map, $x, $y) = @_;
		2439
		2440	return unless $self->contr->active;
1608		2441
1609	my $link_pos = delete $self->{_link_pos};	2442	my $link_pos = delete $self->{_link_pos};
1610		2443
1611	unless ($map) {	2444	unless ($map) {
1612	# restore original map position	2445	# restore original map position
…		…
1626	# use -1 or undef as default coordinates, not 0, 0	2459	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2460	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2461	if $x <=0 && $y <= 0;
1629		2462
1630	$map->load;	2463	$map->load;
		2464	$map->load_neighbours;
1631		2465
1632	return unless $self->contr->active;	2466	return unless $self->contr->active;
1633	$self->activate_recursive;	2467	$self->activate_recursive;
		2468
		2469	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1634	$self->enter_map ($map, $x, $y);	2470	$self->enter_map ($map, $x, $y);
1635	}	2471	}
1636		2472
1637	cf::player->attach (	2473	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1638	on_logout => sub {
1639	my ($pl) = @_;
1640		2474
1641	# abort map switching before logout	2475	Moves the player to the given map-path and coordinates by first freezing
1642	if ($pl->ob->{_link_pos}) {	2476	her, loading and preparing them map, calling the provided $check callback
1643	cf::sync_job {	2477	that has to return the map if sucecssful, and then unfreezes the player on
1644	$pl->ob->leave_link	2478	the new (success) or old (failed) map position. In either case, $done will
1645	};	2479	be called at the end of this process.
1646	}
1647	},
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2480
1651	# try to abort aborted map switching on player login :)
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668
1669	=item $player_object->goto ($path, $x, $y)
1670
1671	=cut	2481	=cut
		2482
		2483	our $GOTOGEN;
1672		2484
1673	sub cf::object::player::goto {	2485	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2486	my ($self, $path, $x, $y, $check, $done) = @_;
		2487
		2488	# do generation counting so two concurrent goto's will be executed in-order
		2489	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2490
1676	$self->enter_link;	2491	$self->enter_link;
1677		2492
1678	(async {	2493	(async {
1679	$path = new cf::path $path;	2494	$Coro::current->{desc} = "player::goto $path $x $y";
1680		2495
1681	my $map = cf::map::find $path->as_string;	2496	# *tag paths override both path and x|y
		2497	if ($path =~ /^\*(.*)$/) {
		2498	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2499	my $ob = $obs[rand @obs];
		2500
		2501	# see if we actually can go there
		2502	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2503	$ob = $obs[rand @obs];
		2504	} else {
		2505	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2506	}
		2507	# else put us there anyways for now #d#
		2508
		2509	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2510	} else {
		2511	($path, $x, $y) = (undef, undef, undef);
		2512	}
		2513	}
		2514
		2515	my $map = eval {
		2516	my $map = defined $path ? cf::map::find $path : undef;
		2517
		2518	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2519	$map = $map->customise_for ($self);
1683		2520	$map = $check->($map) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2521	} else {
1685	# if $map;
1686
1687	$map or $map->cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2522	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2523	}
1689		2524
		2525	$map
		2526	};
		2527
		2528	if ($@) {
		2529	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2530	LOG llevError | logBacktrace, Carp::longmess $@;
		2531	}
		2532
		2533	if ($gen == $self->{_goto_generation}) {
		2534	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2535	$self->leave_link ($map, $x, $y);
		2536	}
		2537
		2538	$done->() if $done;
1691	})->prio (1);	2539	})->prio (1);
1692	}	2540	}
1693		2541
1694	=item $player_object->enter_exit ($exit_object)	2542	=item $player_object->enter_exit ($exit_object)
1695		2543
…		…
1697		2545
1698	sub parse_random_map_params {	2546	sub parse_random_map_params {
1699	my ($spec) = @_;	2547	my ($spec) = @_;
1700		2548
1701	my $rmp = { # defaults	2549	my $rmp = { # defaults
1702	xsize => 10,	2550	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2551	ysize => (cf::rndm 15, 40),
		2552	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2553	#layout => string,
1704	};	2554	};
1705		2555
1706	for (split /\n/, $spec) {	2556	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2557	my ($k, $v) = split /\s+/, $_, 2;
1708		2558
…		…
1712	$rmp	2562	$rmp
1713	}	2563	}
1714		2564
1715	sub prepare_random_map {	2565	sub prepare_random_map {
1716	my ($exit) = @_;	2566	my ($exit) = @_;
		2567
		2568	my $guard = cf::lock_acquire "exit_prepare:$exit";
1717		2569
1718	# all this does is basically replace the /! path by	2570	# all this does is basically replace the /! path by
1719	# a new random map path (?random/...) with a seed	2571	# a new random map path (?random/...) with a seed
1720	# that depends on the exit object	2572	# that depends on the exit object
1721		2573
1722	my $rmp = parse_random_map_params $exit->msg;	2574	my $rmp = parse_random_map_params $exit->msg;
1723		2575
1724	if ($exit->map) {	2576	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2577	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2578	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2579	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2580	$rmp->{origin_y} = $exit->y;
1729	}	2581	}
1730		2582
1731	$rmp->{random_seed} ||= $exit->random_seed;	2583	$rmp->{random_seed} ||= $exit->random_seed;
1732		2584
1733	my $data = cf::to_json $rmp;	2585	my $data = cf::to_json $rmp;
1734	my $md5 = Digest::MD5::md5_hex $data;	2586	my $md5 = Digest::MD5::md5_hex $data;
		2587	my $meta = "$RANDOMDIR/$md5.meta";
1735		2588
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2589	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2590	aio_write $fh, 0, (length $data), $data, 0;
		2591	undef $fh;
		2592	aio_rename "$meta~", $meta;
1738		2593
1739	$exit->slaying ("?random/$md5");	2594	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2595	$exit->msg (undef);
1741	}	2596	}
1742	}	2597	}
…		…
1744	sub cf::object::player::enter_exit {	2599	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2600	my ($self, $exit) = @_;
1746		2601
1747	return unless $self->type == cf::PLAYER;	2602	return unless $self->type == cf::PLAYER;
1748		2603
		2604	if ($exit->slaying eq "/!") {
		2605	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2606	# the problem is that $exit might not survive long enough
		2607	# so it needs to be done right now, right here
		2608	cf::sync_job { prepare_random_map $exit };
		2609	}
		2610
		2611	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2612	my $hp = $exit->stats->hp;
		2613	my $sp = $exit->stats->sp;
		2614
1749	$self->enter_link;	2615	$self->enter_link;
1750		2616
		2617	# if exit is damned, update players death & WoR home-position
		2618	$self->contr->savebed ($slaying, $hp, $sp)
		2619	if $exit->flag (FLAG_DAMNED);
		2620
1751	(async {	2621	(async {
		2622	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2623
1752	$self->deactivate_recursive; # just to be sure	2624	$self->deactivate_recursive; # just to be sure
1753	unless (eval {	2625	unless (eval {
1754	prepare_random_map $exit	2626	$self->goto ($slaying, $hp, $sp);
1755	if $exit->slaying eq "/!";
1756
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1759		2627
1760	1;	2628	1;
1761	}) {	2629	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2630	$self->message ("Something went wrong deep within the crossfire server. "
1763	. "I'll try to bring you back to the map you were before. "	2631	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2632	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2633	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2634
1767	warn "ERROR in enter_exit: $@";	2635	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2636	$self->leave_link;
1769	}	2637	}
1770	})->prio (1);	2638	})->prio (1);
…		…
1783		2651
1784	sub cf::client::send_drawinfo {	2652	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2653	my ($self, $text, $flags) = @_;
1786		2654
1787	utf8::encode $text;	2655	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2656	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2657	}
1790		2658
		2659	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2660
		2661	Send a drawinfo or msg packet to the client, formatting the msg for the
		2662	client if neccessary. C<$type> should be a string identifying the type of
		2663	the message, with C<log> being the default. If C<$color> is negative, suppress
		2664	the message unless the client supports the msg packet.
		2665
		2666	=cut
		2667
		2668	our %CHANNEL = (
		2669	"c/identify" => {
		2670	id => "infobox",
		2671	title => "Identify",
		2672	reply => undef,
		2673	tooltip => "Items recently identified",
		2674	},
		2675	"c/examine" => {
		2676	id => "infobox",
		2677	title => "Examine",
		2678	reply => undef,
		2679	tooltip => "Signs and other items you examined",
		2680	},
		2681	"c/lookat" => {
		2682	id => "infobox",
		2683	title => "Look",
		2684	reply => undef,
		2685	tooltip => "What you saw there",
		2686	},
		2687	);
		2688
		2689	sub cf::client::send_msg {
		2690	my ($self, $channel, $msg, $color, @extra) = @_;
		2691
		2692	$msg = $self->pl->expand_cfpod ($msg);
		2693
		2694	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2695
		2696	# check predefined channels, for the benefit of C
		2697	if ($CHANNEL{$channel}) {
		2698	$channel = $CHANNEL{$channel};
		2699
		2700	$self->ext_msg (channel_info => $channel)
		2701	if $self->can_msg;
		2702
		2703	$channel = $channel->{id};
		2704
		2705	} elsif (ref $channel) {
		2706	# send meta info to client, if not yet sent
		2707	unless (exists $self->{channel}{$channel->{id}}) {
		2708	$self->{channel}{$channel->{id}} = $channel;
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711	}
		2712
		2713	$channel = $channel->{id};
		2714	}
		2715
		2716	return unless @extra || length $msg;
		2717
		2718	if ($self->can_msg) {
		2719	# default colour, mask it out
		2720	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2721	if $color & cf::NDI_DEF;
		2722
		2723	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2724	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2725	} else {
		2726	if ($color >= 0) {
		2727	# replace some tags by gcfclient-compatible ones
		2728	for ($msg) {
		2729	1 while
		2730	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2731	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2732	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2733	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2734	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2735	}
		2736
		2737	$color &= cf::NDI_COLOR_MASK;
		2738
		2739	utf8::encode $msg;
		2740
		2741	if (0 && $msg =~ /\[/) {
		2742	# COMMAND/INFO
		2743	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2744	} else {
		2745	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2746	$self->send_packet ("drawinfo $color $msg")
		2747	}
		2748	}
		2749	}
		2750	}
		2751
		2752	=item $client->ext_msg ($type, @msg)
		2753
		2754	Sends an ext event to the client.
		2755
		2756	=cut
		2757
		2758	sub cf::client::ext_msg($$@) {
		2759	my ($self, $type, @msg) = @_;
		2760
		2761	if ($self->extcmd == 2) {
		2762	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2763	} elsif ($self->extcmd == 1) { # TODO: remove
		2764	push @msg, msgtype => "event_$type";
		2765	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2766	}
		2767	}
		2768
		2769	=item $client->ext_reply ($msgid, @msg)
		2770
		2771	Sends an ext reply to the client.
		2772
		2773	=cut
		2774
		2775	sub cf::client::ext_reply($$@) {
		2776	my ($self, $id, @msg) = @_;
		2777
		2778	if ($self->extcmd == 2) {
		2779	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2780	} elsif ($self->extcmd == 1) {
		2781	#TODO: version 1, remove
		2782	unshift @msg, msgtype => "reply", msgid => $id;
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2784	}
		2785	}
1791		2786
1792	=item $success = $client->query ($flags, "text", \&cb)	2787	=item $success = $client->query ($flags, "text", \&cb)
1793		2788
1794	Queues a query to the client, calling the given callback with	2789	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2790	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2791	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		2792
1798	Queries can fail, so check the return code. Or don't, as queries will become	2793	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	2794	become reliable at some point in the future.
1800		2795
1801	=cut	2796	=cut
1802		2797
1803	sub cf::client::query {	2798	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	2799	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	2807	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2808	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		2809
1815	$self->send_packet ($self->{query_queue}[0][0])	2810	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	2811	if @{ $self->{query_queue} } == 1;
		2812
		2813	1
1817	}	2814	}
1818		2815
1819	cf::client->attach (	2816	cf::client->attach (
		2817	on_connect => sub {
		2818	my ($ns) = @_;
		2819
		2820	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2821	},
1820	on_reply => sub {	2822	on_reply => sub {
1821	my ($ns, $msg) = @_;	2823	my ($ns, $msg) = @_;
1822		2824
1823	# this weird shuffling is so that direct followup queries	2825	# this weird shuffling is so that direct followup queries
1824	# get handled first	2826	# get handled first
1825	my $queue = delete $ns->{query_queue}	2827	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	2828	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		2829
1828	(shift @$queue)->[1]->($msg);	2830	(shift @$queue)->[1]->($msg);
		2831	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		2832
1830	push @{ $ns->{query_queue} }, @$queue;	2833	push @{ $ns->{query_queue} }, @$queue;
1831		2834
1832	if (@{ $ns->{query_queue} } == @$queue) {	2835	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	2836	if (@$queue) {
…		…
1835	} else {	2838	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2839	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	2840	}
1838	}	2841	}
1839	},	2842	},
		2843	on_exticmd => sub {
		2844	my ($ns, $buf) = @_;
		2845
		2846	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2847
		2848	if (ref $msg) {
		2849	my ($type, $reply, @payload) =
		2850	"ARRAY" eq ref $msg
		2851	? @$msg
		2852	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2853
		2854	my @reply;
		2855
		2856	if (my $cb = $EXTICMD{$type}) {
		2857	@reply = $cb->($ns, @payload);
		2858	}
		2859
		2860	$ns->ext_reply ($reply, @reply)
		2861	if $reply;
		2862
		2863	} else {
		2864	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2865	}
		2866
		2867	cf::override;
		2868	},
1840	);	2869	);
1841		2870
1842	=item $client->async (\&cb)	2871	=item $client->async (\&cb)
1843		2872
1844	Create a new coroutine, running the specified callback. The coroutine will	2873	Create a new coroutine, running the specified callback. The coroutine will
…		…
1885	our $safe = new Safe "safe";	2914	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	2915	our $safe_hole = new Safe::Hole;
1887		2916
1888	$SIG{FPE} = 'IGNORE';	2917	$SIG{FPE} = 'IGNORE';
1889		2918
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2919	$safe->permit_only (Opcode::opset qw(
		2920	:base_core :base_mem :base_orig :base_math
		2921	grepstart grepwhile mapstart mapwhile
		2922	sort time
		2923	));
1891		2924
1892	# here we export the classes and methods available to script code	2925	# here we export the classes and methods available to script code
1893		2926
1894	=pod	2927	=pod
1895		2928
1896	The following fucntions and emthods are available within a safe environment:	2929	The following functions and methods are available within a safe environment:
1897		2930
1898	cf::object contr pay_amount pay_player map	2931	cf::object
		2932	contr pay_amount pay_player map x y force_find force_add destroy
		2933	insert remove name archname title slaying race decrease_ob_nr
		2934
1899	cf::object::player player	2935	cf::object::player
1900	cf::player peaceful	2936	player
1901	cf::map trigger	2937
		2938	cf::player
		2939	peaceful
		2940
		2941	cf::map
		2942	trigger
1902		2943
1903	=cut	2944	=cut
1904		2945
1905	for (	2946	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	2947	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2948	insert remove inv name archname title slaying race
		2949	decrease_ob_nr destroy)],
1907	["cf::object::player" => qw(player)],	2950	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	2951	["cf::player" => qw(peaceful)],
1909	["cf::map" => qw(trigger)],	2952	["cf::map" => qw(trigger)],
1910	) {	2953	) {
1911	no strict 'refs';	2954	no strict 'refs';
…		…
1982	=back	3025	=back
1983		3026
1984	=cut	3027	=cut
1985		3028
1986	#############################################################################	3029	#############################################################################
		3030	# the server's init and main functions
1987		3031
1988	=head2 EXTENSION DATABASE SUPPORT	3032	sub load_facedata($) {
		3033	my ($path) = @_;
1989		3034
1990	Crossfire maintains a very simple database for extension use. It can	3035	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	3036	# for this (global event?)
1992	excludes objects.	3037	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		3038
1994	The parameter C<$family> should best start with the name of the extension	3039	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		3040
1997	=over 4	3041	warn "loading facedata from $path\n";
1998		3042
1999	=item $hashref = cf::db_get $family	3043	my $facedata;
		3044	0 < aio_load $path, $facedata
		3045	or die "$path: $!";
2000		3046
2001	Return a hashref for use by the extension C<$family>, which can be	3047	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		3048
2005	=item $value = cf::db_get $family => $key	3049	$facedata->{version} == 2
		3050	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		3051
2007	Returns a single value from the database	3052	# patch in the exptable
2008		3053	$facedata->{resource}{"res/exp_table"} = {
2009	=item cf::db_put $family => $hashref	3054	type => FT_RSRC,
2010		3055	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	3056	};
		3057	cf::cede_to_tick;
2060		3058
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	3059	{
		3060	my $faces = $facedata->{faceinfo};
2065		3061
2066	sub db_get($;$) {	3062	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	3063	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}	3064	cf::face::set_visibility $idx, $info->{visibility};
2069	: ($DB->{$_[0]} ||= { })	3065	cf::face::set_magicmap $idx, $info->{magicmap};
2070	}	3066	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3067	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2071		3068
2072	sub db_put($$;$) {	3069	cf::cede_to_tick;
2073	if (@_ >= 3) {
2074	$DB->{$_[0]}{$_[1]} = $_[2];
2075	} else {
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080
2081	cf::global->attach (
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	3070	}
2086	);
2087	}
2088		3071
2089	#############################################################################	3072	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	3073	next unless $info->{smooth};
		3074	my $idx = cf::face::find $face
		3075	or next;
		3076	if (my $smooth = cf::face::find $info->{smooth}) {
		3077	cf::face::set_smooth $idx, $smooth;
		3078	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3079	} else {
		3080	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3081	}
2091		3082
2092	sub cfg_load {	3083	cf::cede_to_tick;
		3084	}
		3085	}
		3086
		3087	{
		3088	my $anims = $facedata->{animinfo};
		3089
		3090	while (my ($anim, $info) = each %$anims) {
		3091	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	cf::anim::invalidate_all; # d'oh
		3096	}
		3097
		3098	{
		3099	# TODO: for gcfclient pleasure, we should give resources
		3100	# that gcfclient doesn't grok a >10000 face index.
		3101	my $res = $facedata->{resource};
		3102
		3103	my $soundconf = delete $res->{"res/sound.conf"};
		3104
		3105	while (my ($name, $info) = each %$res) {
		3106	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3107	my $data;
		3108
		3109	if ($info->{type} & 1) {
		3110	# prepend meta info
		3111
		3112	my $meta = $enc->encode ({
		3113	name => $name,
		3114	%{ $info->{meta} || {} },
		3115	});
		3116
		3117	$data = pack "(w/a*)*", $meta, $info->{data};
		3118	} else {
		3119	$data = $info->{data};
		3120	}
		3121
		3122	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3123	cf::face::set_type $idx, $info->{type};
		3124
		3125	cf::cede_to_tick;
		3126	}
		3127
		3128	if ($soundconf) {
		3129	$soundconf = $enc->decode (delete $soundconf->{data});
		3130
		3131	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3132	my $sound = $soundconf->{compat}[$_]
		3133	or next;
		3134
		3135	my $face = cf::face::find "sound/$sound->[1]";
		3136	cf::sound::set $sound->[0] => $face;
		3137	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3138	}
		3139
		3140	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3141	my $face = cf::face::find "sound/$v";
		3142	cf::sound::set $k => $face;
		3143	}
		3144	}
		3145	}
		3146
		3147	1
		3148	}
		3149
		3150	register_exticmd fx_want => sub {
		3151	my ($ns, $want) = @_;
		3152
		3153	while (my ($k, $v) = each %$want) {
		3154	$ns->fx_want ($k, $v);
		3155	}
		3156	};
		3157
		3158	sub reload_regions {
		3159	# HACK to clear player env face cache, we need some signal framework
		3160	# for this (global event?)
		3161	%ext::player_env::MUSIC_FACE_CACHE = ();
		3162
		3163	load_resource_file "$MAPDIR/regions"
		3164	or die "unable to load regions file\n";
		3165
		3166	for (cf::region::list) {
		3167	$_->{match} = qr/$_->{match}/
		3168	if exists $_->{match};
		3169	}
		3170	}
		3171
		3172	sub reload_facedata {
		3173	load_facedata "$DATADIR/facedata"
		3174	or die "unable to load facedata\n";
		3175	}
		3176
		3177	sub reload_archetypes {
		3178	load_resource_file "$DATADIR/archetypes"
		3179	or die "unable to load archetypes\n";
		3180	#d# NEED to laod twice to resolve forward references
		3181	# this really needs to be done in an extra post-pass
		3182	# (which needs to be synchronous, so solve it differently)
		3183	load_resource_file "$DATADIR/archetypes"
		3184	or die "unable to load archetypes\n";
		3185	}
		3186
		3187	sub reload_treasures {
		3188	load_resource_file "$DATADIR/treasures"
		3189	or die "unable to load treasurelists\n";
		3190	}
		3191
		3192	sub reload_resources {
		3193	warn "reloading resource files...\n";
		3194
		3195	reload_regions;
		3196	reload_facedata;
		3197	#reload_archetypes;#d#
		3198	reload_archetypes;
		3199	reload_treasures;
		3200
		3201	warn "finished reloading resource files\n";
		3202	}
		3203
		3204	sub init {
		3205	reload_resources;
		3206	}
		3207
		3208	sub reload_config {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3209	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	3210	or return;
2095		3211
2096	local $/;	3212	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	3213	*CFG = YAML::Syck::Load <$fh>;
2098		3214
…		…
2112		3228
2113	sub main {	3229	sub main {
2114	# we must not ever block the main coroutine	3230	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3231	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3233	(async {
		3234	$Coro::current->{desc} = "IDLE BUG HANDLER";
2117	async { Event::one_event };	3235	Event::one_event;
		3236	})->prio (Coro::PRIO_MAX);
2118	};	3237	};
2119		3238
2120	cfg_load;	3239	reload_config;
2121	db_load;	3240	db_init;
2122	load_extensions;	3241	load_extensions;
		3242
		3243	$TICK_WATCHER->start;
2123	Event::loop;	3244	Event::loop;
2124	}	3245	}
2125		3246
2126	#############################################################################	3247	#############################################################################
2127	# initialisation	3248	# initialisation and cleanup
2128		3249
		3250	# install some emergency cleanup handlers
		3251	BEGIN {
		3252	for my $signal (qw(INT HUP TERM)) {
		3253	Event->signal (
		3254	reentrant => 0,
		3255	data => WF_AUTOCANCEL,
		3256	signal => $signal,
		3257	prio => 0,
		3258	cb => sub {
		3259	cf::cleanup "SIG$signal";
		3260	},
		3261	);
		3262	}
		3263	}
		3264
		3265	sub write_runtime {
		3266	my $runtime = "$LOCALDIR/runtime";
		3267
		3268	# first touch the runtime file to show we are still running:
		3269	# the fsync below can take a very very long time.
		3270
		3271	IO::AIO::aio_utime $runtime, undef, undef;
		3272
		3273	my $guard = cf::lock_acquire "write_runtime";
		3274
		3275	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3276	or return;
		3277
		3278	my $value = $cf::RUNTIME + 90 + 10;
		3279	# 10 is the runtime save interval, for a monotonic clock
		3280	# 60 allows for the watchdog to kill the server.
		3281
		3282	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3283	and return;
		3284
		3285	# always fsync - this file is important
		3286	aio_fsync $fh
		3287	and return;
		3288
		3289	# touch it again to show we are up-to-date
		3290	aio_utime $fh, undef, undef;
		3291
		3292	close $fh
		3293	or return;
		3294
		3295	aio_rename "$runtime~", $runtime
		3296	and return;
		3297
		3298	warn "runtime file written.\n";
		3299
		3300	1
		3301	}
		3302
		3303	sub emergency_save() {
		3304	my $freeze_guard = cf::freeze_mainloop;
		3305
		3306	warn "enter emergency perl save\n";
		3307
		3308	cf::sync_job {
		3309	# use a peculiar iteration method to avoid tripping on perl
		3310	# refcount bugs in for. also avoids problems with players
		3311	# and maps saved/destroyed asynchronously.
		3312	warn "begin emergency player save\n";
		3313	for my $login (keys %cf::PLAYER) {
		3314	my $pl = $cf::PLAYER{$login} or next;
		3315	$pl->valid or next;
		3316	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3317	$pl->save;
		3318	}
		3319	warn "end emergency player save\n";
		3320
		3321	warn "begin emergency map save\n";
		3322	for my $path (keys %cf::MAP) {
		3323	my $map = $cf::MAP{$path} or next;
		3324	$map->valid or next;
		3325	$map->save;
		3326	}
		3327	warn "end emergency map save\n";
		3328
		3329	warn "begin emergency database checkpoint\n";
		3330	BDB::db_env_txn_checkpoint $DB_ENV;
		3331	warn "end emergency database checkpoint\n";
		3332	};
		3333
		3334	warn "leave emergency perl save\n";
		3335	}
		3336
		3337	sub post_cleanup {
		3338	my ($make_core) = @_;
		3339
		3340	warn Carp::longmess "post_cleanup backtrace"
		3341	if $make_core;
		3342	}
		3343
2129	sub reload() {	3344	sub do_reload_perl() {
2130	# can/must only be called in main	3345	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3346	if ($Coro::current != $Coro::main) {
2132	warn "can only reload from main coroutine\n";	3347	warn "can only reload from main coroutine";
2133	return;	3348	return;
2134	}	3349	}
2135		3350
2136	warn "reloading...";	3351	warn "reloading...";
2137		3352
2138	my $guard = freeze_mainloop;	3353	warn "entering sync_job";
		3354
		3355	cf::sync_job {
		3356	cf::write_runtime; # external watchdog should not bark
2139	cf::emergency_save;	3357	cf::emergency_save;
		3358	cf::write_runtime; # external watchdog should not bark
2140		3359
2141	eval {	3360	warn "syncing database to disk";
		3361	BDB::db_env_txn_checkpoint $DB_ENV;
		3362
2142	# if anything goes wrong in here, we should simply crash as we already saved	3363	# if anything goes wrong in here, we should simply crash as we already saved
2143		3364
2144	# cancel all watchers	3365	warn "cancelling all WF_AUTOCANCEL watchers";
2145	for (Event::all_watchers) {	3366	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	3367	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}	3368	}
2148		3369
		3370	warn "flushing outstanding aio requests";
		3371	for (;;) {
		3372	BDB::flush;
		3373	IO::AIO::flush;
		3374	Coro::cede;
		3375	last unless IO::AIO::nreqs || BDB::nreqs;
		3376	warn "iterate...";
		3377	}
		3378
		3379	++$RELOAD;
		3380
2149	# cancel all extension coros	3381	warn "cancelling all extension coros";
2150	$_->cancel for values %EXT_CORO;	3382	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	3383	%EXT_CORO = ();
2152		3384
2153	# unload all extensions	3385	warn "removing commands";
2154	for (@exts) {	3386	%COMMAND = ();
		3387
		3388	warn "removing ext/exti commands";
		3389	%EXTCMD = ();
		3390	%EXTICMD = ();
		3391
		3392	warn "unloading/nuking all extensions";
		3393	for my $pkg (@EXTS) {
2155	warn "unloading <$_>";	3394	warn "... unloading $pkg";
2156	unload_extension $_;	3395
		3396	if (my $cb = $pkg->can ("unload")) {
		3397	eval {
		3398	$cb->($pkg);
		3399	1
		3400	} or warn "$pkg unloaded, but with errors: $@";
2157	}	3401	}
2158		3402
		3403	warn "... nuking $pkg";
		3404	Symbol::delete_package $pkg;
		3405	}
		3406
2159	# unload all modules loaded from $LIBDIR	3407	warn "unloading all perl modules loaded from $LIBDIR";
2160	while (my ($k, $v) = each %INC) {	3408	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3409	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162		3410
2163	warn "removing <$k>";	3411	warn "... unloading $k";
2164	delete $INC{$k};	3412	delete $INC{$k};
2165		3413
2166	$k =~ s/\.pm$//;	3414	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;	3415	$k =~ s/\//::/g;
2168		3416
…		…
2171	}	3419	}
2172		3420
2173	Symbol::delete_package $k;	3421	Symbol::delete_package $k;
2174	}	3422	}
2175		3423
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	3424	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3425	Symbol::delete_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3426	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		3427
2184	# remove register_script_function callbacks
2185	# TODO
2186
2187	# unload cf.pm "a bit"	3428	warn "unloading cf.pm \"a bit\"";
2188	delete $INC{"cf.pm"};	3429	delete $INC{"cf.pm"};
		3430	delete $INC{"cf/pod.pm"};
2189		3431
2190	# don't, removes xs symbols, too,	3432	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3433	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3434	#Symbol::delete_package __PACKAGE__;
2193		3435
2194	# reload cf.pm	3436	warn "unload completed, starting to reload now";
		3437
2195	warn "reloading cf.pm";	3438	warn "reloading cf.pm";
2196	require cf;	3439	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3440	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2198		3441
2199	# load config and database again	3442	warn "loading config and database again";
2200	cf::cfg_load;	3443	cf::reload_config;
2201	cf::db_load;
2202		3444
2203	# load extensions
2204	warn "load extensions";	3445	warn "loading extensions";
2205	cf::load_extensions;	3446	cf::load_extensions;
2206		3447
2207	# reattach attachments to objects	3448	warn "reattaching attachments to objects/players";
2208	warn "reattach";	3449	_global_reattach; # objects, sockets
2209	_global_reattach;	3450	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	3451	reattach $_ for values %MAP;
2211	};	3452	warn "reattaching attachments to players";
		3453	reattach $_ for values %PLAYER;
2212		3454
2213	if ($@) {	3455	warn "leaving sync_job";
		3456
		3457	1
		3458	} or do {
2214	warn $@;	3459	warn $@;
2215	warn "error while reloading, exiting.";	3460	warn "error while reloading, exiting.";
2216	exit 1;	3461	exit 1;
2217	}	3462	};
2218		3463
2219	warn "reloaded successfully";	3464	warn "reloaded";
2220	};	3465	};
2221		3466
2222	#############################################################################	3467	our $RELOAD_WATCHER; # used only during reload
2223		3468
2224	unless ($LINK_MAP) {	3469	sub reload_perl() {
2225	$LINK_MAP = cf::map::new;	3470	# doing reload synchronously and two reloads happen back-to-back,
		3471	# coro crashes during coro_state_free->destroy here.
2226		3472
2227	$LINK_MAP->width (41);	3473	$RELOAD_WATCHER ||= Event->timer (
2228	$LINK_MAP->height (41);	3474	reentrant => 0,
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,	3475	after => 0,
		3476	data => WF_AUTOCANCEL,
2237	cb => sub {	3477	cb => sub {
2238	$_[0]->w->cancel;	3478	do_reload_perl;
2239		3479	undef $RELOAD_WATCHER;
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});	3480	},
2258		3481	);
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	3482	}
2264
2265	register "<global>", __PACKAGE__;
2266		3483
2267	register_command "reload" => sub {	3484	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	3485	my ($who, $arg) = @_;
2269		3486
2270	if ($who->flag (FLAG_WIZ)) {	3487	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	3488	$who->message ("reloading server.");
		3489	async {
		3490	$Coro::current->{desc} = "perl_reload";
		3491	reload_perl;
		3492	};
2274	}	3493	}
2275	};	3494	};
2276		3495
2277	unshift @INC, $LIBDIR;	3496	unshift @INC, $LIBDIR;
		3497
		3498	my $bug_warning = 0;
		3499
		3500	our @WAIT_FOR_TICK;
		3501	our @WAIT_FOR_TICK_BEGIN;
		3502
		3503	sub wait_for_tick {
		3504	return unless $TICK_WATCHER->is_active;
		3505	return if $Coro::current == $Coro::main;
		3506
		3507	my $signal = new Coro::Signal;
		3508	push @WAIT_FOR_TICK, $signal;
		3509	$signal->wait;
		3510	}
		3511
		3512	sub wait_for_tick_begin {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK_BEGIN, $signal;
		3518	$signal->wait;
		3519	}
2278		3520
2279	$TICK_WATCHER = Event->timer (	3521	$TICK_WATCHER = Event->timer (
2280	reentrant => 0,	3522	reentrant => 0,
		3523	parked => 1,
2281	prio => 0,	3524	prio => 0,
2282	at => $NEXT_TICK || $TICK,	3525	at => $NEXT_TICK || $TICK,
2283	data => WF_AUTOCANCEL,	3526	data => WF_AUTOCANCEL,
2284	cb => sub {	3527	cb => sub {
		3528	if ($Coro::current != $Coro::main) {
		3529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3530	unless ++$bug_warning > 10;
		3531	return;
		3532	}
		3533
		3534	$NOW = $tick_start = Event::time;
		3535
2285	cf::server_tick; # one server iteration	3536	cf::server_tick; # one server iteration
		3537
2286	$RUNTIME += $TICK;	3538	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;	3539	$NEXT_TICK += $TICK;
2288		3540
		3541	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3542	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3543	Coro::async_pool {
		3544	$Coro::current->{desc} = "runtime saver";
		3545	write_runtime
		3546	or warn "ERROR: unable to write runtime file: $!";
		3547	};
		3548	}
		3549
		3550	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3551	$sig->send;
		3552	}
		3553	while (my $sig = shift @WAIT_FOR_TICK) {
		3554	$sig->send;
		3555	}
		3556
		3557	$NOW = Event::time;
		3558
2289	# if we are delayed by four ticks or more, skip them all	3559	# if we are delayed by four ticks or more, skip them all
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3560	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2291		3561
2292	$TICK_WATCHER->at ($NEXT_TICK);	3562	$TICK_WATCHER->at ($NEXT_TICK);
2293	$TICK_WATCHER->start;	3563	$TICK_WATCHER->start;
		3564
		3565	$LOAD = ($NOW - $tick_start) / $TICK;
		3566	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3567
		3568	_post_tick;
2294	},	3569	},
2295	);	3570	);
2296		3571
		3572	{
		3573	BDB::min_parallel 8;
2297	IO::AIO::max_poll_time $TICK * 0.2;	3574	BDB::max_poll_time $TICK * 0.1;
2298		3575	$BDB_POLL_WATCHER = Event->io (
2299	Event->io (	3576	reentrant => 0,
2300	fd => IO::AIO::poll_fileno,	3577	fd => BDB::poll_fileno,
2301	poll => 'r',	3578	poll => 'r',
2302	prio => 5,	3579	prio => 0,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,	3580	data => WF_AUTOCANCEL,
		3581	cb => \&BDB::poll_cb,
		3582	);
		3583
		3584	BDB::set_sync_prepare {
		3585	my $status;
		3586	my $current = $Coro::current;
		3587	(
		3588	sub {
		3589	$status = $!;
		3590	$current->ready; undef $current;
		3591	},
		3592	sub {
		3593	Coro::schedule while defined $current;
		3594	$! = $status;
		3595	},
		3596	)
		3597	};
		3598
		3599	unless ($DB_ENV) {
		3600	$DB_ENV = BDB::db_env_create;
		3601	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3602	| BDB::LOG_AUTOREMOVE, 1);
		3603	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3604	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3605
		3606	cf::sync_job {
		3607	eval {
		3608	BDB::db_env_open
		3609	$DB_ENV,
		3610	$BDBDIR,
		3611	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3612	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3613	0666;
		3614
		3615	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3616	};
		3617
		3618	cf::cleanup "db_env_open(db): $@" if $@;
		3619	};
		3620	}
		3621
		3622	$BDB_DEADLOCK_WATCHER = Event->timer (
2309	after => 0,	3623	after => 3,
2310	interval => 10,	3624	interval => 1,
		3625	hard => 1,
		3626	prio => 0,
		3627	data => WF_AUTOCANCEL,
2311	cb => sub {	3628	cb => sub {
2312	(Coro::unblock_sub {	3629	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2313	write_runtime	3630	},
2314	or warn "ERROR: unable to write runtime file: $!";	3631	);
		3632	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3633	after => 11,
		3634	interval => 60,
		3635	hard => 1,
		3636	prio => 0,
		3637	data => WF_AUTOCANCEL,
		3638	cb => sub {
		3639	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3640	},
		3641	);
		3642	$BDB_TRICKLE_WATCHER = Event->timer (
		3643	after => 5,
		3644	interval => 10,
		3645	hard => 1,
		3646	prio => 0,
		3647	data => WF_AUTOCANCEL,
		3648	cb => sub {
		3649	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3650	},
		3651	);
		3652	}
		3653
		3654	{
		3655	IO::AIO::min_parallel 8;
		3656
		3657	undef $Coro::AIO::WATCHER;
		3658	IO::AIO::max_poll_time $TICK * 0.1;
		3659	$AIO_POLL_WATCHER = Event->io (
		3660	reentrant => 0,
		3661	data => WF_AUTOCANCEL,
		3662	fd => IO::AIO::poll_fileno,
		3663	poll => 'r',
		3664	prio => 0,
		3665	cb => \&IO::AIO::poll_cb,
		3666	);
		3667	}
		3668
		3669	my $_log_backtrace;
		3670
		3671	sub _log_backtrace {
		3672	my ($msg, @addr) = @_;
		3673
		3674	$msg =~ s/\n//;
		3675
		3676	# limit the # of concurrent backtraces
		3677	if ($_log_backtrace < 2) {
		3678	++$_log_backtrace;
		3679	async {
		3680	$Coro::current->{desc} = "abt $msg";
		3681
		3682	my @bt = fork_call {
		3683	@addr = map { sprintf "%x", $_ } @addr;
		3684	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3685	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3686	or die "addr2line: $!";
		3687
		3688	my @funcs;
		3689	my @res = <$fh>;
		3690	chomp for @res;
		3691	while (@res) {
		3692	my ($func, $line) = splice @res, 0, 2, ();
		3693	push @funcs, "[$func] $line";
		3694	}
		3695
		3696	@funcs
		3697	};
		3698
		3699	LOG llevInfo, "[ABT] $msg\n";
		3700	LOG llevInfo, "[ABT] $_\n" for @bt;
		3701	--$_log_backtrace;
2315	})->();	3702	};
		3703	} else {
		3704	LOG llevInfo, "[ABT] $msg\n";
		3705	LOG llevInfo, "[ABT] [suppressed]\n";
2316	},	3706	}
2317	);	3707	}
		3708
		3709	# load additional modules
		3710	use cf::pod;
2318		3711
2319	END { cf::emergency_save }	3712	END { cf::emergency_save }
2320		3713
2321	1	3714	1
2322		3715

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