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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.145 by root, Sun Jan 7 21:54:59 2007 UTC vs.
Revision 1.384 by root, Fri Oct 12 18:17:16 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	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 $msg =~ /\n$/;
122		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
123	LOG llevError, "cfperl: $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 | logBacktrace, 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
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
766		982
767	sub reattach {	983	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		988
771	my $registry = $obj->registry;	989	my $registry = $obj->registry;
772		990
773	@$registry = ();	991	@$registry = ();
774		992
…		…
815	sub object_freezer_save {	1033	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
817		1035
818	sync_job {	1036	sync_job {
819	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
822		1041
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1046	close $fh;
828		1047
829	if (@$objs) {	1048	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1054	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
837	}	1056	}
838	} else {	1057	} else {
839	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
845	}	1064	}
846	} else {	1065	} else {
847	aio_unlink $filename;	1066	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
849	}	1068	}
850	}	1069	};
851	}	1070	}
852		1071
853	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
855		1074
…		…
867	or return;	1086	or return;
868		1087
869	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
871	or return;	1090	or return;
872	$av = eval { (Storable::thaw $av)->{objs} };
873	}
874		1091
		1092	my $st = eval { Coro::Storable::thaw $av }
		1093	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1094	$av = $st->{objs};
		1095	}
		1096
		1097	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
877	return ($data, $av);	1101	($data, $av)
878	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
879		1109
880	#############################################################################	1110	#############################################################################
881	# command handling &c	1111	# command handling &c
882		1112
883	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1127	}
898		1128
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1130
901	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
902		1136
903	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
904	called.	1138	called.
905		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
906	=cut	1151	=cut
907		1152
908	sub register_extcmd {	1153	sub register_extcmd {
909	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
910		1155
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
915	}	1163	}
916		1164
917	cf::player->attach (	1165	cf::player->attach (
918	on_command => sub {	1166	on_command => sub {
919	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1176	cf::override;
929	},	1177	},
930	on_extcmd => sub {	1178	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
932		1180
933	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1182
935	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
941	} else {	1198	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1200	}
944		1201
945	cf::override;	1202	cf::override;
946	},	1203	},
947	);	1204	);
948		1205
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 {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
1026	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1211	next unless -r $path;
1028	eval {	1212
1029	load_extension $ext;	1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
1030	1	1270	}
1031	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
1032	}	1276	};
1033	}	1277	}
1034		1278
1035	#############################################################################	1279	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1280
1038	*cf::mapsupport::on_clean = sub {	1281	=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		1282
1073	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1074		1284
1075	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1076		1286
1077	=cut	1287	=cut
1078		1288
1079	package cf::player;	1289	package cf::player;
1080		1290
		1291	use Coro::AIO;
		1292
1081	=head3 cf::player	1293	=head3 cf::player
1082		1294
1083	=over 4	1295	=over 4
1084		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
1085	=item cf::player::find $login	1311	=item cf::player::find $login
1086		1312
1087	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1088		1314
1089	=cut	1315	=cut
1090		1316
1091	sub playerdir($) {	1317	sub playerdir($) {
1092	cf::localdir	1318	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1320	}
1098		1321
1099	sub path($) {	1322	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1324
1102	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
1103	}	1326	}
1104		1327
1105	sub find_active($) {	1328	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
1110		1333
1111	sub exists($) {	1334	sub exists($) {
1112	my ($login) = @_;	1335	my ($login) = @_;
1113		1336
1114	$cf::PLAYER{$login}	1337	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1338	or cf::sync_job { !aio_stat path $login }
1116	}	1339	}
1117		1340
1118	sub find($) {	1341	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1342	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1343	my $login = $_[0];
1121		1344
1122	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
1123		1346
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1347	$cf::PLAYER{$_[0]} || do {
		1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
		1356	or return;
		1357
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
1125	};	1364	}
1126	}	1365	}
1127		1366
1128	sub save($) {	1367	sub save($) {
1129	my ($pl) = @_;	1368	my ($pl) = @_;
1130		1369
…		…
1132		1371
1133	my $path = path $pl;	1372	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1373	my $guard = cf::lock_acquire "user_save:$path";
1135		1374
1136	return if $pl->{deny_save};	1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1138		1379
1139	Coro::cede;
1140	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1141	Coro::cede;	1381	cf::cede_to_tick;
1142	}	1382	}
1143		1383
1144	sub new($) {	1384	sub new($) {
1145	my ($login) = @_;	1385	my ($login) = @_;
1146		1386
…		…
1152	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1153		1393
1154	$self	1394	$self
1155	}	1395	}
1156		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
1157	sub quit_character {	1414	sub quit_character {
1158	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1159		1418
1160	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1161	$pl->password ("*"); # this should lock out the player until we nuked the dir	1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
1162		1421
1163	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1165	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1166	$pl->ns->destroy if $pl->ns;	1425	$pl->ns->destroy if $pl->ns;
1167		1426
1168	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1169	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1170	IO::AIO::aio_rename $path, $temp, sub {	1429	aio_rename $path, $temp;
1171	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1172	$pl->destroy;	1431	$pl->destroy;
1173		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1174	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
1175	};	1480	}
1176	}
1177		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1178	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1179		1565
1180	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1181		1567
1182	=cut	1568	=cut
1183		1569
1184	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1185	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1186		1572
1187	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1188
1189	$self->send ("ext " . cf::to_json \%msg);
1190	}	1574	}
1191		1575
1192	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1193		1616
1194	=back	1617	=back
1195
1196		1618
1197	=head3 cf::map	1619	=head3 cf::map
1198		1620
1199	=over 4	1621	=over 4
1200		1622
…		…
1203	package cf::map;	1625	package cf::map;
1204		1626
1205	use Fcntl;	1627	use Fcntl;
1206	use Coro::AIO;	1628	use Coro::AIO;
1207		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1208	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1209	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1210		1636
1211	sub generate_random_map {	1637	sub generate_random_map {
1212	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1213
1214	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1215	cf::map::_create_random_map	1640	$self->_create_random_map (
1216	$path,
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1228	}	1780	}
1229		1781
1230	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1231	# all maps in C++...	1783	# all maps in C++...
1232	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1234		1786
1235	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1236	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1237	}	1789	}
1238		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1239	sub try_load_header($) {	1807	sub load_header_from($) {
1240	my ($path) = @_;	1808	my ($self, $path) = @_;
1241		1809
1242	utf8::encode $path;	1810	utf8::encode $path;
1243	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1244	or return;	1812	or return;
1245		1813
1246	my $map = cf::map::new	1814	$self->_load_header ($f)
1247	or return;	1815	or return;
1248		1816
1249	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1250	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1251		1819
1252	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1253	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1254		1866
1255	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1256		1869
1257	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1258	}	1874	}
1259		1875
1260	sub find;	1876	sub find;
1261	sub find {	1877	sub find {
1262	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1263		1879
1264	#warn "find<$path,$origin>\n";#d#
1265
1266	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1267	my $key = $path->as_string;
1268		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1269	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1270		1884
1271	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1272	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1273		1888
1274	# do it the slow way	1889	my $map = new_from_path cf::map $path
1275	my $map = try_load_header $path->save_path;
1276
1277	Coro::cede;
1278
1279	if ($map) {
1280	$map->last_access ((delete $map->{last_access})
1281	|| $cf::RUNTIME); #d#
1282	# safety
1283	$map->{instantiate_time} = $cf::RUNTIME
1284	if $map->{instantiate_time} > $cf::RUNTIME;
1285	} else {
1286	if (my $rmp = $path->random_map_params) {
1287	$map = generate_random_map $key, $rmp;
1288	} else {
1289	$map = try_load_header $path->load_path;
1290	}
1291
1292	$map or return;	1890	or return;
1293		1891
1294	$map->{load_original} = 1;
1295	$map->{instantiate_time} = $cf::RUNTIME;
1296	$map->last_access ($cf::RUNTIME);
1297	$map->instantiate;
1298
1299	# per-player maps become, after loading, normal maps
1300	$map->per_player (0) if $path->{user_rel};
1301	}
1302
1303	$map->path ($key);
1304	$map->{path} = $path;
1305	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1306		1893
1307	Coro::cede;	1894	$map->load_header
		1895	or return;
1308		1896
1309	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1310	$map->reset;	1902	$map->reset;
1311	undef $guard;
1312	$map = find $path	1903	return find $path;
1313	or return;
1314	}	1904	}
1315		1905
1316	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1317	}	1907	}
1318	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1319		1912
1320	sub load {	1913	sub load {
1321	my ($self) = @_;	1914	my ($self) = @_;
1322		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1323	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1324	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1325		1922
		1923	return unless $self->valid;
1326	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1327		1925
1328	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1329		1927
1330	$self->alloc;	1928	$self->alloc;
1331	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1332	or return;	1936	or return;
1333		1937
1334	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1335	if delete $self->{load_original};	1939	if delete $self->{load_original};
1336		1940
1337	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1338	utf8::encode $uniq;	1942	utf8::encode $uniq;
1339	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1340	$self->clear_unique_items;	1945	$self->clear_unique_items;
1341	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1342	}	1949	}
1343	}	1950	}
1344		1951
1345	Coro::cede;	1952	$f->resolve_delayed_derefs;
1346		1953
		1954	cf::cede_to_tick;
1347	# now do the right thing for maps	1955	# now do the right thing for maps
1348	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1349
1350	if ($self->{path}->is_style_map) {
1351	$self->{deny_save} = 1;
1352	$self->{deny_reset} = 1;
1353	} else {
1354	$self->fix_auto_apply;
1355	$self->decay_objects;
1356	$self->update_buttons;
1357	$self->set_darkness_map;
1358	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1359	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1360	$self->activate;	1968	$self->activate;
1361	}	1969	}
1362		1970
1363	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1364		1973
1365	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
1366	}	2016	}
1367		2017
1368	sub find_sync {	2018	sub find_sync {
1369	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1370		2020
1371	cf::sync_job { cf::map::find $path, $origin }	2021	cf::sync_job { find $path, $origin }
1372	}	2022	}
1373		2023
1374	sub do_load_sync {	2024	sub do_load_sync {
1375	my ($map) = @_;	2025	my ($map) = @_;
1376		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1377	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	$Coro::current->{desc} = "map prefetcher";
		2049
		2050	while (%MAP_PREFETCH) {
		2051	while (my ($k, $v) = each %MAP_PREFETCH) {
		2052	if (my $map = find $k) {
		2053	$map->load if $v;
		2054	}
		2055
		2056	delete $MAP_PREFETCH{$k};
		2057	}
		2058	}
		2059	undef $MAP_PREFETCHER;
		2060	};
		2061	$MAP_PREFETCHER->prio (6);
		2062
		2063	()
1378	}	2064	}
1379		2065
1380	sub save {	2066	sub save {
1381	my ($self) = @_;	2067	my ($self) = @_;
1382		2068
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2069	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2070
1385	$self->{last_save} = $cf::RUNTIME;	2071	$self->{last_save} = $cf::RUNTIME;
1386		2072
1387	return unless $self->dirty;	2073	return unless $self->dirty;
1388		2074
1389	my $save = $self->{path}->save_path; utf8::encode $save;	2075	my $save = $self->save_path; utf8::encode $save;
1390	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
1391		2077
1392	$self->{load_path} = $save;	2078	$self->{load_path} = $save;
1393		2079
1394	return if $self->{deny_save};	2080	return if $self->{deny_save};
1395		2081
1396	local $self->{last_access} = $self->last_access;#d#	2082	local $self->{last_access} = $self->last_access;#d#
1397		2083
1398	cf::async {	2084	cf::async {
		2085	$Coro::current->{desc} = "map player save";
1399	$_->contr->save for $self->players;	2086	$_->contr->save for $self->players;
1400	};	2087	};
1401		2088
1402	if ($uniq) {	2089	if ($uniq) {
1403	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1404	$self->save_objects ($uniq, cf::IO_UNIQUES);	2091	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1405	} else {	2092	} else {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2093	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1407	}	2094	}
1408	}	2095	}
1409		2096
1410	sub swap_out {	2097	sub swap_out {
1411	my ($self) = @_;	2098	my ($self) = @_;
1412		2099
1413	# save first because save cedes	2100	# save first because save cedes
1414	$self->save;	2101	$self->save;
1415		2102
1416	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1417		2104
1418	return if $self->players;	2105	return if $self->players;
1419	return if $self->in_memory != cf::MAP_IN_MEMORY;	2106	return if $self->in_memory != cf::MAP_IN_MEMORY;
1420	return if $self->{deny_save};	2107	return if $self->{deny_save};
1421		2108
		2109	$self->in_memory (cf::MAP_SWAPPED);
		2110
		2111	$self->deactivate;
		2112	$_->clear_links_to ($self) for values %cf::MAP;
1422	$self->clear;	2113	$self->clear;
1423	$self->in_memory (cf::MAP_SWAPPED);
1424	}	2114	}
1425		2115
1426	sub reset_at {	2116	sub reset_at {
1427	my ($self) = @_;	2117	my ($self) = @_;
1428		2118
1429	# TODO: safety, remove and allow resettable per-player maps	2119	# TODO: safety, remove and allow resettable per-player maps
1430	return 1e99 if $self->{path}{user_rel};
1431	return 1e99 if $self->{deny_reset};	2120	return 1e99 if $self->{deny_reset};
1432		2121
1433	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2122	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1434	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2123	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1435		2124
…		…
1440	my ($self) = @_;	2129	my ($self) = @_;
1441		2130
1442	$self->reset_at <= $cf::RUNTIME	2131	$self->reset_at <= $cf::RUNTIME
1443	}	2132	}
1444		2133
1445	sub unlink_save {
1446	my ($self) = @_;
1447
1448	utf8::encode (my $save = $self->{path}->save_path);
1449	aioreq_pri 3; IO::AIO::aio_unlink $save;
1450	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1451	}
1452
1453	sub rename {
1454	my ($self, $new_path) = @_;
1455
1456	$self->unlink_save;
1457
1458	delete $cf::MAP{$self->path};
1459	$self->{path} = new cf::path $new_path;
1460	$self->path ($self->{path}->as_string);
1461	$cf::MAP{$self->path} = $self;
1462
1463	$self->save;
1464	}
1465
1466	sub reset {	2134	sub reset {
1467	my ($self) = @_;	2135	my ($self) = @_;
1468		2136
1469	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1470		2138
1471	return if $self->players;	2139	return if $self->players;
1472	return if $self->{path}{user_rel};#d#
1473		2140
1474	warn "resetting map ", $self->path;#d#	2141	warn "resetting map ", $self->path;
		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	# need to save uniques path
		2146	unless ($self->{deny_save}) {
		2147	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2148
		2149	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2150	if $uniq;
		2151	}
1475		2152
1476	delete $cf::MAP{$self->path};	2153	delete $cf::MAP{$self->path};
1477		2154
		2155	$self->deactivate;
1478	$_->clear_links_to ($self) for values %cf::MAP;	2156	$_->clear_links_to ($self) for values %cf::MAP;
		2157	$self->clear;
1479		2158
1480	$self->unlink_save;	2159	$self->unlink_save;
1481	$self->destroy;	2160	$self->destroy;
1482	}	2161	}
1483		2162
1484	my $nuke_counter = "aaaa";	2163	my $nuke_counter = "aaaa";
1485		2164
1486	sub nuke {	2165	sub nuke {
1487	my ($self) = @_;	2166	my ($self) = @_;
1488		2167
		2168	{
		2169	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2170
		2171	delete $cf::MAP{$self->path};
		2172
		2173	$self->unlink_save;
		2174
		2175	bless $self, "cf::map";
		2176	delete $self->{deny_reset};
1489	$self->{deny_save} = 1;	2177	$self->{deny_save} = 1;
1490	$self->reset_timeout (1);	2178	$self->reset_timeout (1);
1491	$self->rename ("{nuke}/" . ($nuke_counter++));	2179	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2180
		2181	$cf::MAP{$self->path} = $self;
		2182	}
		2183
1492	$self->reset; # polite request, might not happen	2184	$self->reset; # polite request, might not happen
1493	}	2185	}
1494		2186
1495	sub customise_for {	2187	=item $maps = cf::map::tmp_maps
1496	my ($map, $ob) = @_;
1497		2188
1498	if ($map->per_player) {	2189	Returns an arrayref with all map paths of currently instantiated and saved
1499	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2190	maps. May block.
		2191
		2192	=cut
		2193
		2194	sub tmp_maps() {
1500	}	2195	[
1501		2196	map {
1502	$map	2197	utf8::decode $_;
		2198	/\.map$/
		2199	? normalise $_
		2200	: ()
		2201	} @{ aio_readdir $TMPDIR or [] }
		2202	]
1503	}	2203	}
1504		2204
1505	sub emergency_save {	2205	=item $maps = cf::map::random_maps
1506	my $freeze_guard = cf::freeze_mainloop;
1507		2206
1508	warn "enter emergency perl save\n";	2207	Returns an arrayref with all map paths of currently instantiated and saved
		2208	random maps. May block.
1509		2209
1510	cf::sync_job {	2210	=cut
1511	warn "begin emergency player save\n";
1512	$_->save for values %cf::PLAYER;
1513	warn "end emergency player save\n";
1514		2211
1515	warn "begin emergency map save\n";	2212	sub random_maps() {
1516	$_->save for values %cf::MAP;	2213	[
1517	warn "end emergency map save\n";	2214	map {
1518	};	2215	utf8::decode $_;
		2216	/\.map$/
		2217	? normalise "?random/$_"
		2218	: ()
		2219	} @{ aio_readdir $RANDOMDIR or [] }
		2220	]
		2221	}
1519		2222
1520	warn "leave emergency perl save\n";	2223	=item cf::map::unique_maps
		2224
		2225	Returns an arrayref of paths of all shared maps that have
		2226	instantiated unique items. May block.
		2227
		2228	=cut
		2229
		2230	sub unique_maps() {
		2231	[
		2232	map {
		2233	utf8::decode $_;
		2234	/\.map$/
		2235	? normalise $_
		2236	: ()
		2237	} @{ aio_readdir $UNIQUEDIR or [] }
		2238	]
1521	}	2239	}
1522		2240
1523	package cf;	2241	package cf;
1524		2242
1525	=back	2243	=back
1526		2244
		2245	=head3 cf::object
		2246
		2247	=cut
		2248
		2249	package cf::object;
		2250
		2251	=over 4
		2252
		2253	=item $ob->inv_recursive
		2254
		2255	Returns the inventory of the object _and_ their inventories, recursively.
		2256
		2257	=cut
		2258
		2259	sub inv_recursive_;
		2260	sub inv_recursive_ {
		2261	map { $_, inv_recursive_ $_->inv } @_
		2262	}
		2263
		2264	sub inv_recursive {
		2265	inv_recursive_ inv $_[0]
		2266	}
		2267
		2268	=item $ref = $ob->ref
		2269
		2270	creates and returns a persistent reference to an objetc that can be stored as a string.
		2271
		2272	=item $ob = cf::object::deref ($refstring)
		2273
		2274	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2275	even if the object actually exists. May block.
		2276
		2277	=cut
		2278
		2279	sub deref {
		2280	my ($ref) = @_;
		2281
		2282	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1527		2299
1528	=head3 cf::object::player	2300	=head3 cf::object::player
1529		2301
1530	=over 4	2302	=over 4
1531		2303
…		…
1545		2317
1546	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1547		2319
1548	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1549	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1550	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1551	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1552	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1553	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1554	}	2345	}
1555		2346
1556	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1557		2348
1558	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1571		2362
1572	=item $player_object->enter_link	2363	=item $player_object->enter_link
1573		2364
1574	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1575		2366
1576	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1577	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1578		2369
		2370	Will never block.
		2371
1579	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1580		2373
1581	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1582	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1583	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1584	to the emergency map position.	2377	fails, to the emergency map position.
1585		2378
1586	Might block.	2379	Might block.
1587		2380
1588	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1589		2392
1590	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1591	my ($self) = @_;	2394	my ($self) = @_;
1592		2395
1593	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1594		2397
1595	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1596		2399
1597	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1598	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1599		2402
1600	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1601	}	2404	}
1602		2405
1603	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1604	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1605		2410
1606	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1607		2412
1608	unless ($map) {	2413	unless ($map) {
1609	# restore original map position	2414	# restore original map position
…		…
1623	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1624	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1625	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1626		2431
1627	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1628		2434
1629	return unless $self->contr->active;	2435	return unless $self->contr->active;
1630	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1631	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1632	}	2440	}
1633		2441
1634	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1635	on_logout => sub {
1636	my ($pl) = @_;
1637		2443
1638	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1639	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1640	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1641	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1642	};	2448	be called at the end of this process.
1643	}
1644	},
1645	on_login => sub {
1646	my ($pl) = @_;
1647		2449
1648	# try to abort aborted map switching on player login :)
1649	# should happen only on crashes
1650	if ($pl->ob->{_link_pos}) {
1651	$pl->ob->enter_link;
1652	(async {
1653	# we need this sleep as the login has a concurrent enter_exit running
1654	# and this sleep increases chances of the player not ending up in scorn
1655	$pl->ob->reply (undef,
1656	"There was an internal problem at your last logout, "
1657	. "the server will try to bring you to your intended destination in a second.",
1658	cf::NDI_RED);
1659	Coro::Timer::sleep 1;
1660	$pl->ob->leave_link;
1661	})->prio (2);
1662	}
1663	},
1664	);
1665
1666	=item $player_object->goto ($path, $x, $y)
1667
1668	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1669		2453
1670	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1671	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1672		2459
1673	$self->enter_link;	2460	$self->enter_link;
1674		2461
1675	(async {	2462	(async {
1676	$path = new cf::path $path;	2463	$Coro::current->{desc} = "player::goto $path $x $y";
1677		2464
1678	my $map = cf::map::find $path->as_string;	2465	# *tag paths override both path and x|y
		2466	if ($path =~ /^\*(.*)$/) {
		2467	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2468	my $ob = $obs[rand @obs];
		2469
		2470	# see if we actually can go there
		2471	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2472	$ob = $obs[rand @obs];
		2473	} else {
		2474	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2475	}
		2476	# else put us there anyways for now #d#
		2477
		2478	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2479	} else {
		2480	($path, $x, $y) = (undef, undef, undef);
		2481	}
		2482	}
		2483
		2484	my $map = eval {
		2485	my $map = defined $path ? cf::map::find $path : undef;
		2486
		2487	if ($map) {
1679	$map = $map->customise_for ($self) if $map;	2488	$map = $map->customise_for ($self);
1680		2489	$map = $check->($map) if $check && $map;
1681	# warn "entering ", $map->path, " at ($x, $y)\n"	2490	} else {
1682	# if $map;
1683
1684	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2491	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2492	}
1685		2493
		2494	$map
		2495	};
		2496
		2497	if ($@) {
		2498	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2499	LOG llevError | logBacktrace, Carp::longmess $@;
		2500	}
		2501
		2502	if ($gen == $self->{_goto_generation}) {
		2503	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2504	$self->leave_link ($map, $x, $y);
		2505	}
		2506
		2507	$done->() if $done;
1687	})->prio (1);	2508	})->prio (1);
1688	}	2509	}
1689		2510
1690	=item $player_object->enter_exit ($exit_object)	2511	=item $player_object->enter_exit ($exit_object)
1691		2512
…		…
1693		2514
1694	sub parse_random_map_params {	2515	sub parse_random_map_params {
1695	my ($spec) = @_;	2516	my ($spec) = @_;
1696		2517
1697	my $rmp = { # defaults	2518	my $rmp = { # defaults
1698	xsize => 10,	2519	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2520	ysize => (cf::rndm 15, 40),
		2521	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2522	#layout => string,
1700	};	2523	};
1701		2524
1702	for (split /\n/, $spec) {	2525	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2526	my ($k, $v) = split /\s+/, $_, 2;
1704		2527
…		…
1708	$rmp	2531	$rmp
1709	}	2532	}
1710		2533
1711	sub prepare_random_map {	2534	sub prepare_random_map {
1712	my ($exit) = @_;	2535	my ($exit) = @_;
		2536
		2537	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2538
1714	# all this does is basically replace the /! path by	2539	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2540	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2541	# that depends on the exit object
1717		2542
1718	my $rmp = parse_random_map_params $exit->msg;	2543	my $rmp = parse_random_map_params $exit->msg;
1719		2544
1720	if ($exit->map) {	2545	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2546	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2547	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2548	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2549	$rmp->{origin_y} = $exit->y;
1725	}	2550	}
1726		2551
1727	$rmp->{random_seed} ||= $exit->random_seed;	2552	$rmp->{random_seed} ||= $exit->random_seed;
1728		2553
1729	my $data = cf::to_json $rmp;	2554	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2555	my $md5 = Digest::MD5::md5_hex $data;
		2556	my $meta = "$RANDOMDIR/$md5.meta";
1731		2557
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2558	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2559	aio_write $fh, 0, (length $data), $data, 0;
		2560	undef $fh;
		2561	aio_rename "$meta~", $meta;
1734		2562
1735	$exit->slaying ("?random/$md5");	2563	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2564	$exit->msg (undef);
1737	}	2565	}
1738	}	2566	}
…		…
1740	sub cf::object::player::enter_exit {	2568	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2569	my ($self, $exit) = @_;
1742		2570
1743	return unless $self->type == cf::PLAYER;	2571	return unless $self->type == cf::PLAYER;
1744		2572
		2573	if ($exit->slaying eq "/!") {
		2574	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2575	# the problem is that $exit might not survive long enough
		2576	# so it needs to be done right now, right here
		2577	cf::sync_job { prepare_random_map $exit };
		2578	}
		2579
		2580	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2581	my $hp = $exit->stats->hp;
		2582	my $sp = $exit->stats->sp;
		2583
1745	$self->enter_link;	2584	$self->enter_link;
1746		2585
		2586	# if exit is damned, update players death & WoR home-position
		2587	$self->contr->savebed ($slaying, $hp, $sp)
		2588	if $exit->flag (FLAG_DAMNED);
		2589
1747	(async {	2590	(async {
		2591	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2592
1748	$self->deactivate_recursive; # just to be sure	2593	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2594	unless (eval {
1750	prepare_random_map $exit	2595	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2596
1756	1;	2597	1;
1757	}) {	2598	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2599	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2600	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2601	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2602	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2603
1763	warn "ERROR in enter_exit: $@";	2604	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2605	$self->leave_link;
1765	}	2606	}
1766	})->prio (1);	2607	})->prio (1);
…		…
1779		2620
1780	sub cf::client::send_drawinfo {	2621	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2622	my ($self, $text, $flags) = @_;
1782		2623
1783	utf8::encode $text;	2624	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2625	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2626	}
1786		2627
		2628	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2629
		2630	Send a drawinfo or msg packet to the client, formatting the msg for the
		2631	client if neccessary. C<$type> should be a string identifying the type of
		2632	the message, with C<log> being the default. If C<$color> is negative, suppress
		2633	the message unless the client supports the msg packet.
		2634
		2635	=cut
		2636
		2637	our %CHANNEL = (
		2638	"c/identify" => {
		2639	id => "infobox",
		2640	title => "Identify",
		2641	reply => undef,
		2642	tooltip => "Items recently identified",
		2643	},
		2644	"c/examine" => {
		2645	id => "infobox",
		2646	title => "Examine",
		2647	reply => undef,
		2648	tooltip => "Signs and other items you examined",
		2649	},
		2650	"c/lookat" => {
		2651	id => "infobox",
		2652	title => "Look",
		2653	reply => undef,
		2654	tooltip => "What you saw there",
		2655	},
		2656	);
		2657
		2658	sub cf::client::send_msg {
		2659	my ($self, $channel, $msg, $color, @extra) = @_;
		2660
		2661	$msg = $self->pl->expand_cfpod ($msg);
		2662
		2663	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2664
		2665	# check predefined channels, for the benefit of C
		2666	if ($CHANNEL{$channel}) {
		2667	$channel = $CHANNEL{$channel};
		2668
		2669	$self->ext_msg (channel_info => $channel)
		2670	if $self->can_msg;
		2671
		2672	$channel = $channel->{id};
		2673
		2674	} elsif (ref $channel) {
		2675	# send meta info to client, if not yet sent
		2676	unless (exists $self->{channel}{$channel->{id}}) {
		2677	$self->{channel}{$channel->{id}} = $channel;
		2678	$self->ext_msg (channel_info => $channel)
		2679	if $self->can_msg;
		2680	}
		2681
		2682	$channel = $channel->{id};
		2683	}
		2684
		2685	return unless @extra || length $msg;
		2686
		2687	if ($self->can_msg) {
		2688	# default colour, mask it out
		2689	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2690	if $color & cf::NDI_DEF;
		2691
		2692	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2693	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2694	} else {
		2695	if ($color >= 0) {
		2696	# replace some tags by gcfclient-compatible ones
		2697	for ($msg) {
		2698	1 while
		2699	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2700	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2701	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2702	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2703	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2704	}
		2705
		2706	$color &= cf::NDI_COLOR_MASK;
		2707
		2708	utf8::encode $msg;
		2709
		2710	if (0 && $msg =~ /\[/) {
		2711	# COMMAND/INFO
		2712	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2713	} else {
		2714	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2715	$self->send_packet ("drawinfo $color $msg")
		2716	}
		2717	}
		2718	}
		2719	}
		2720
		2721	=item $client->ext_msg ($type, @msg)
		2722
		2723	Sends an ext event to the client.
		2724
		2725	=cut
		2726
		2727	sub cf::client::ext_msg($$@) {
		2728	my ($self, $type, @msg) = @_;
		2729
		2730	if ($self->extcmd == 2) {
		2731	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2732	} elsif ($self->extcmd == 1) { # TODO: remove
		2733	push @msg, msgtype => "event_$type";
		2734	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2735	}
		2736	}
		2737
		2738	=item $client->ext_reply ($msgid, @msg)
		2739
		2740	Sends an ext reply to the client.
		2741
		2742	=cut
		2743
		2744	sub cf::client::ext_reply($$@) {
		2745	my ($self, $id, @msg) = @_;
		2746
		2747	if ($self->extcmd == 2) {
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2749	} elsif ($self->extcmd == 1) {
		2750	#TODO: version 1, remove
		2751	unshift @msg, msgtype => "reply", msgid => $id;
		2752	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2753	}
		2754	}
1787		2755
1788	=item $success = $client->query ($flags, "text", \&cb)	2756	=item $success = $client->query ($flags, "text", \&cb)
1789		2757
1790	Queues a query to the client, calling the given callback with	2758	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2759	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1792	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2760	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1793		2761
1794	Queries can fail, so check the return code. Or don't, as queries will become	2762	Queries can fail, so check the return code. Or don't, as queries will
1795	reliable at some point in the future.	2763	become reliable at some point in the future.
1796		2764
1797	=cut	2765	=cut
1798		2766
1799	sub cf::client::query {	2767	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	2768	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	2776	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2777	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		2778
1811	$self->send_packet ($self->{query_queue}[0][0])	2779	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	2780	if @{ $self->{query_queue} } == 1;
		2781
		2782	1
1813	}	2783	}
1814		2784
1815	cf::client->attach (	2785	cf::client->attach (
		2786	on_connect => sub {
		2787	my ($ns) = @_;
		2788
		2789	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2790	},
1816	on_reply => sub {	2791	on_reply => sub {
1817	my ($ns, $msg) = @_;	2792	my ($ns, $msg) = @_;
1818		2793
1819	# this weird shuffling is so that direct followup queries	2794	# this weird shuffling is so that direct followup queries
1820	# get handled first	2795	# get handled first
1821	my $queue = delete $ns->{query_queue}	2796	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2797	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2798
1824	(shift @$queue)->[1]->($msg);	2799	(shift @$queue)->[1]->($msg);
		2800	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2801
1826	push @{ $ns->{query_queue} }, @$queue;	2802	push @{ $ns->{query_queue} }, @$queue;
1827		2803
1828	if (@{ $ns->{query_queue} } == @$queue) {	2804	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2805	if (@$queue) {
…		…
1831	} else {	2807	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2808	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	2809	}
1834	}	2810	}
1835	},	2811	},
		2812	on_exticmd => sub {
		2813	my ($ns, $buf) = @_;
		2814
		2815	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2816
		2817	if (ref $msg) {
		2818	my ($type, $reply, @payload) =
		2819	"ARRAY" eq ref $msg
		2820	? @$msg
		2821	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2822
		2823	my @reply;
		2824
		2825	if (my $cb = $EXTICMD{$type}) {
		2826	@reply = $cb->($ns, @payload);
		2827	}
		2828
		2829	$ns->ext_reply ($reply, @reply)
		2830	if $reply;
		2831
		2832	} else {
		2833	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2834	}
		2835
		2836	cf::override;
		2837	},
1836	);	2838	);
1837		2839
1838	=item $client->async (\&cb)	2840	=item $client->async (\&cb)
1839		2841
1840	Create a new coroutine, running the specified callback. The coroutine will	2842	Create a new coroutine, running the specified callback. The coroutine will
…		…
1881	our $safe = new Safe "safe";	2883	our $safe = new Safe "safe";
1882	our $safe_hole = new Safe::Hole;	2884	our $safe_hole = new Safe::Hole;
1883		2885
1884	$SIG{FPE} = 'IGNORE';	2886	$SIG{FPE} = 'IGNORE';
1885		2887
1886	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2888	$safe->permit_only (Opcode::opset qw(
		2889	:base_core :base_mem :base_orig :base_math
		2890	grepstart grepwhile mapstart mapwhile
		2891	sort time
		2892	));
1887		2893
1888	# here we export the classes and methods available to script code	2894	# here we export the classes and methods available to script code
1889		2895
1890	=pod	2896	=pod
1891		2897
1892	The following fucntions and emthods are available within a safe environment:	2898	The following functions and methods are available within a safe environment:
1893		2899
1894	cf::object contr pay_amount pay_player map	2900	cf::object
		2901	contr pay_amount pay_player map x y force_find force_add destroy
		2902	insert remove name archname title slaying race decrease_ob_nr
		2903
1895	cf::object::player player	2904	cf::object::player
1896	cf::player peaceful	2905	player
1897	cf::map trigger	2906
		2907	cf::player
		2908	peaceful
		2909
		2910	cf::map
		2911	trigger
1898		2912
1899	=cut	2913	=cut
1900		2914
1901	for (	2915	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	2916	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2917	insert remove inv name archname title slaying race
		2918	decrease_ob_nr destroy)],
1903	["cf::object::player" => qw(player)],	2919	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	2920	["cf::player" => qw(peaceful)],
1905	["cf::map" => qw(trigger)],	2921	["cf::map" => qw(trigger)],
1906	) {	2922	) {
1907	no strict 'refs';	2923	no strict 'refs';
…		…
1978	=back	2994	=back
1979		2995
1980	=cut	2996	=cut
1981		2997
1982	#############################################################################	2998	#############################################################################
		2999	# the server's init and main functions
1983		3000
1984	=head2 EXTENSION DATABASE SUPPORT	3001	sub load_facedata($) {
		3002	my ($path) = @_;
1985		3003
1986	Crossfire maintains a very simple database for extension use. It can	3004	# HACK to clear player env face cache, we need some signal framework
1987	currently store anything that can be serialised using Storable, which	3005	# for this (global event?)
1988	excludes objects.	3006	%ext::player_env::MUSIC_FACE_CACHE = ();
1989		3007
1990	The parameter C<$family> should best start with the name of the extension	3008	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1991	using it, it should be unique.
1992		3009
1993	=over 4	3010	warn "loading facedata from $path\n";
1994		3011
1995	=item $hashref = cf::db_get $family	3012	my $facedata;
		3013	0 < aio_load $path, $facedata
		3014	or die "$path: $!";
1996		3015
1997	Return a hashref for use by the extension C<$family>, which can be	3016	$facedata = Coro::Storable::thaw $facedata;
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000		3017
2001	=item $value = cf::db_get $family => $key	3018	$facedata->{version} == 2
		3019	or cf::cleanup "$path: version mismatch, cannot proceed.";
2002		3020
2003	Returns a single value from the database	3021	# patch in the exptable
2004		3022	$facedata->{resource}{"res/exp_table"} = {
2005	=item cf::db_put $family => $hashref	3023	type => FT_RSRC,
2006		3024	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}
2033
2034	my $pid;
2035
2036	sub db_save() {
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	3025	};
		3026	cf::cede_to_tick;
2056		3027
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}	3028	{
		3029	my $faces = $facedata->{faceinfo};
2061		3030
2062	sub db_get($;$) {	3031	while (my ($face, $info) = each %$faces) {
2063	@_ >= 2	3032	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2064	? $DB->{$_[0]}{$_[1]}	3033	cf::face::set_visibility $idx, $info->{visibility};
2065	: ($DB->{$_[0]} ||= { })	3034	cf::face::set_magicmap $idx, $info->{magicmap};
2066	}	3035	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3036	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2067		3037
2068	sub db_put($$;$) {	3038	cf::cede_to_tick;
2069	if (@_ >= 3) {
2070	$DB->{$_[0]}{$_[1]} = $_[2];
2071	} else {
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076
2077	cf::global->attach (
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	3039	}
2082	);
2083	}
2084		3040
2085	#############################################################################	3041	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	3042	next unless $info->{smooth};
		3043	my $idx = cf::face::find $face
		3044	or next;
		3045	if (my $smooth = cf::face::find $info->{smooth}) {
		3046	cf::face::set_smooth $idx, $smooth;
		3047	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3048	} else {
		3049	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3050	}
2087		3051
2088	sub cfg_load {	3052	cf::cede_to_tick;
		3053	}
		3054	}
		3055
		3056	{
		3057	my $anims = $facedata->{animinfo};
		3058
		3059	while (my ($anim, $info) = each %$anims) {
		3060	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3061	cf::cede_to_tick;
		3062	}
		3063
		3064	cf::anim::invalidate_all; # d'oh
		3065	}
		3066
		3067	{
		3068	# TODO: for gcfclient pleasure, we should give resources
		3069	# that gcfclient doesn't grok a >10000 face index.
		3070	my $res = $facedata->{resource};
		3071
		3072	my $soundconf = delete $res->{"res/sound.conf"};
		3073
		3074	while (my ($name, $info) = each %$res) {
		3075	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3076	my $data;
		3077
		3078	if ($info->{type} & 1) {
		3079	# prepend meta info
		3080
		3081	my $meta = $enc->encode ({
		3082	name => $name,
		3083	%{ $info->{meta} || {} },
		3084	});
		3085
		3086	$data = pack "(w/a*)*", $meta, $info->{data};
		3087	} else {
		3088	$data = $info->{data};
		3089	}
		3090
		3091	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3092	cf::face::set_type $idx, $info->{type};
		3093
		3094	cf::cede_to_tick;
		3095	}
		3096
		3097	if ($soundconf) {
		3098	$soundconf = $enc->decode (delete $soundconf->{data});
		3099
		3100	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3101	my $sound = $soundconf->{compat}[$_]
		3102	or next;
		3103
		3104	my $face = cf::face::find "sound/$sound->[1]";
		3105	cf::sound::set $sound->[0] => $face;
		3106	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3107	}
		3108
		3109	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3110	my $face = cf::face::find "sound/$v";
		3111	cf::sound::set $k => $face;
		3112	}
		3113	}
		3114	}
		3115
		3116	1
		3117	}
		3118
		3119	register_exticmd fx_want => sub {
		3120	my ($ns, $want) = @_;
		3121
		3122	while (my ($k, $v) = each %$want) {
		3123	$ns->fx_want ($k, $v);
		3124	}
		3125	};
		3126
		3127	sub reload_regions {
		3128	# HACK to clear player env face cache, we need some signal framework
		3129	# for this (global event?)
		3130	%ext::player_env::MUSIC_FACE_CACHE = ();
		3131
		3132	load_resource_file "$MAPDIR/regions"
		3133	or die "unable to load regions file\n";
		3134
		3135	for (cf::region::list) {
		3136	$_->{match} = qr/$_->{match}/
		3137	if exists $_->{match};
		3138	}
		3139	}
		3140
		3141	sub reload_facedata {
		3142	load_facedata "$DATADIR/facedata"
		3143	or die "unable to load facedata\n";
		3144	}
		3145
		3146	sub reload_archetypes {
		3147	load_resource_file "$DATADIR/archetypes"
		3148	or die "unable to load archetypes\n";
		3149	#d# NEED to laod twice to resolve forward references
		3150	# this really needs to be done in an extra post-pass
		3151	# (which needs to be synchronous, so solve it differently)
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	}
		3155
		3156	sub reload_treasures {
		3157	load_resource_file "$DATADIR/treasures"
		3158	or die "unable to load treasurelists\n";
		3159	}
		3160
		3161	sub reload_resources {
		3162	warn "reloading resource files...\n";
		3163
		3164	reload_regions;
		3165	reload_facedata;
		3166	#reload_archetypes;#d#
		3167	reload_archetypes;
		3168	reload_treasures;
		3169
		3170	warn "finished reloading resource files\n";
		3171	}
		3172
		3173	sub init {
		3174	reload_resources;
		3175	}
		3176
		3177	sub reload_config {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	3178	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	3179	or return;
2091		3180
2092	local $/;	3181	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	3182	*CFG = YAML::Syck::Load <$fh>;
2094		3183
…		…
2097	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2098	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2099		3188
2100	if (exists $CFG{mlockall}) {	3189	if (exists $CFG{mlockall}) {
2101	eval {	3190	eval {
2102	$CFG{mlockall} ? &mlockall : &munlockall	3191	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2103	and die "WARNING: m(un)lockall failed: $!\n";	3192	and die "WARNING: m(un)lockall failed: $!\n";
2104	};	3193	};
2105	warn $@ if $@;	3194	warn $@ if $@;
2106	}	3195	}
2107	}	3196	}
2108		3197
2109	sub main {	3198	sub main {
2110	# we must not ever block the main coroutine	3199	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	3200	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3202	(async {
		3203	$Coro::current->{desc} = "IDLE BUG HANDLER";
2113	async { Event::one_event };	3204	Event::one_event;
		3205	})->prio (Coro::PRIO_MAX);
2114	};	3206	};
2115		3207
2116	cfg_load;	3208	reload_config;
2117	db_load;	3209	db_init;
2118	load_extensions;	3210	load_extensions;
		3211
		3212	$TICK_WATCHER->start;
2119	Event::loop;	3213	Event::loop;
2120	}	3214	}
2121		3215
2122	#############################################################################	3216	#############################################################################
2123	# initialisation	3217	# initialisation and cleanup
2124		3218
		3219	# install some emergency cleanup handlers
		3220	BEGIN {
		3221	for my $signal (qw(INT HUP TERM)) {
		3222	Event->signal (
		3223	reentrant => 0,
		3224	data => WF_AUTOCANCEL,
		3225	signal => $signal,
		3226	prio => 0,
		3227	cb => sub {
		3228	cf::cleanup "SIG$signal";
		3229	},
		3230	);
		3231	}
		3232	}
		3233
		3234	sub write_runtime {
		3235	my $runtime = "$LOCALDIR/runtime";
		3236
		3237	# first touch the runtime file to show we are still running:
		3238	# the fsync below can take a very very long time.
		3239
		3240	IO::AIO::aio_utime $runtime, undef, undef;
		3241
		3242	my $guard = cf::lock_acquire "write_runtime";
		3243
		3244	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3245	or return;
		3246
		3247	my $value = $cf::RUNTIME + 90 + 10;
		3248	# 10 is the runtime save interval, for a monotonic clock
		3249	# 60 allows for the watchdog to kill the server.
		3250
		3251	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3252	and return;
		3253
		3254	# always fsync - this file is important
		3255	aio_fsync $fh
		3256	and return;
		3257
		3258	# touch it again to show we are up-to-date
		3259	aio_utime $fh, undef, undef;
		3260
		3261	close $fh
		3262	or return;
		3263
		3264	aio_rename "$runtime~", $runtime
		3265	and return;
		3266
		3267	warn "runtime file written.\n";
		3268
		3269	1
		3270	}
		3271
		3272	sub emergency_save() {
		3273	my $freeze_guard = cf::freeze_mainloop;
		3274
		3275	warn "enter emergency perl save\n";
		3276
		3277	cf::sync_job {
		3278	# use a peculiar iteration method to avoid tripping on perl
		3279	# refcount bugs in for. also avoids problems with players
		3280	# and maps saved/destroyed asynchronously.
		3281	warn "begin emergency player save\n";
		3282	for my $login (keys %cf::PLAYER) {
		3283	my $pl = $cf::PLAYER{$login} or next;
		3284	$pl->valid or next;
		3285	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3286	$pl->save;
		3287	}
		3288	warn "end emergency player save\n";
		3289
		3290	warn "begin emergency map save\n";
		3291	for my $path (keys %cf::MAP) {
		3292	my $map = $cf::MAP{$path} or next;
		3293	$map->valid or next;
		3294	$map->save;
		3295	}
		3296	warn "end emergency map save\n";
		3297
		3298	warn "begin emergency database checkpoint\n";
		3299	BDB::db_env_txn_checkpoint $DB_ENV;
		3300	warn "end emergency database checkpoint\n";
		3301	};
		3302
		3303	warn "leave emergency perl save\n";
		3304	}
		3305
		3306	sub post_cleanup {
		3307	my ($make_core) = @_;
		3308
		3309	warn Carp::longmess "post_cleanup backtrace"
		3310	if $make_core;
		3311	}
		3312
2125	sub reload() {	3313	sub do_reload_perl() {
2126	# can/must only be called in main	3314	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	3315	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	3316	warn "can only reload from main coroutine";
2129	return;	3317	return;
2130	}	3318	}
2131		3319
2132	warn "reloading...";	3320	warn "reloading...";
2133		3321
2134	my $guard = freeze_mainloop;	3322	warn "entering sync_job";
		3323
		3324	cf::sync_job {
		3325	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	3326	cf::emergency_save;
		3327	cf::write_runtime; # external watchdog should not bark
2136		3328
2137	eval {	3329	warn "syncing database to disk";
		3330	BDB::db_env_txn_checkpoint $DB_ENV;
		3331
2138	# if anything goes wrong in here, we should simply crash as we already saved	3332	# if anything goes wrong in here, we should simply crash as we already saved
2139		3333
2140	# cancel all watchers	3334	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	3335	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3336	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	3337	}
2144		3338
		3339	warn "flushing outstanding aio requests";
		3340	for (;;) {
		3341	BDB::flush;
		3342	IO::AIO::flush;
		3343	Coro::cede;
		3344	last unless IO::AIO::nreqs || BDB::nreqs;
		3345	warn "iterate...";
		3346	}
		3347
		3348	++$RELOAD;
		3349
2145	# cancel all extension coros	3350	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	3351	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	3352	%EXT_CORO = ();
2148		3353
2149	# unload all extensions	3354	warn "removing commands";
2150	for (@exts) {	3355	%COMMAND = ();
		3356
		3357	warn "removing ext/exti commands";
		3358	%EXTCMD = ();
		3359	%EXTICMD = ();
		3360
		3361	warn "unloading/nuking all extensions";
		3362	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	3363	warn "... unloading $pkg";
2152	unload_extension $_;	3364
		3365	if (my $cb = $pkg->can ("unload")) {
		3366	eval {
		3367	$cb->($pkg);
		3368	1
		3369	} or warn "$pkg unloaded, but with errors: $@";
2153	}	3370	}
2154		3371
		3372	warn "... nuking $pkg";
		3373	Symbol::delete_package $pkg;
		3374	}
		3375
2155	# unload all modules loaded from $LIBDIR	3376	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	3377	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3378	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		3379
2159	warn "removing <$k>";	3380	warn "... unloading $k";
2160	delete $INC{$k};	3381	delete $INC{$k};
2161		3382
2162	$k =~ s/\.pm$//;	3383	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	3384	$k =~ s/\//::/g;
2164		3385
…		…
2167	}	3388	}
2168		3389
2169	Symbol::delete_package $k;	3390	Symbol::delete_package $k;
2170	}	3391	}
2171		3392
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	3393	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3394	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3395	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		3396
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	3397	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	3398	delete $INC{"cf.pm"};
		3399	delete $INC{"cf/pod.pm"};
2185		3400
2186	# don't, removes xs symbols, too,	3401	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3402	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3403	#Symbol::delete_package __PACKAGE__;
2189		3404
2190	# reload cf.pm	3405	warn "unload completed, starting to reload now";
		3406
2191	warn "reloading cf.pm";	3407	warn "reloading cf.pm";
2192	require cf;	3408	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3409	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		3410
2195	# load config and database again	3411	warn "loading config and database again";
2196	cf::cfg_load;	3412	cf::reload_config;
2197	cf::db_load;
2198		3413
2199	# load extensions
2200	warn "load extensions";	3414	warn "loading extensions";
2201	cf::load_extensions;	3415	cf::load_extensions;
2202		3416
2203	# reattach attachments to objects	3417	warn "reattaching attachments to objects/players";
2204	warn "reattach";	3418	_global_reattach; # objects, sockets
2205	_global_reattach;	3419	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	3420	reattach $_ for values %MAP;
2207	};	3421	warn "reattaching attachments to players";
		3422	reattach $_ for values %PLAYER;
2208		3423
2209	if ($@) {	3424	warn "leaving sync_job";
		3425
		3426	1
		3427	} or do {
2210	warn $@;	3428	warn $@;
2211	warn "error while reloading, exiting.";	3429	warn "error while reloading, exiting.";
2212	exit 1;	3430	exit 1;
2213	}	3431	};
2214		3432
2215	warn "reloaded successfully";	3433	warn "reloaded";
2216	};	3434	};
2217		3435
2218	#############################################################################	3436	our $RELOAD_WATCHER; # used only during reload
2219		3437
2220	unless ($LINK_MAP) {	3438	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	3439	# doing reload synchronously and two reloads happen back-to-back,
		3440	# coro crashes during coro_state_free->destroy here.
2222		3441
2223	$LINK_MAP->width (41);	3442	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	3443	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	3444	after => 0,
		3445	data => WF_AUTOCANCEL,
2233	cb => sub {	3446	cb => sub {
2234	$_[0]->w->cancel;	3447	do_reload_perl;
2235		3448	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	3449	},
2254		3450	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3451	}
2260
2261	register "<global>", __PACKAGE__;
2262		3452
2263	register_command "reload" => sub {	3453	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3454	my ($who, $arg) = @_;
2265		3455
2266	if ($who->flag (FLAG_WIZ)) {	3456	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3457	$who->message ("reloading server.");
		3458	async {
		3459	$Coro::current->{desc} = "perl_reload";
		3460	reload_perl;
		3461	};
2270	}	3462	}
2271	};	3463	};
2272		3464
2273	unshift @INC, $LIBDIR;	3465	unshift @INC, $LIBDIR;
		3466
		3467	my $bug_warning = 0;
		3468
		3469	our @WAIT_FOR_TICK;
		3470	our @WAIT_FOR_TICK_BEGIN;
		3471
		3472	sub wait_for_tick {
		3473	return unless $TICK_WATCHER->is_active;
		3474	return if $Coro::current == $Coro::main;
		3475
		3476	my $signal = new Coro::Signal;
		3477	push @WAIT_FOR_TICK, $signal;
		3478	$signal->wait;
		3479	}
		3480
		3481	sub wait_for_tick_begin {
		3482	return unless $TICK_WATCHER->is_active;
		3483	return if $Coro::current == $Coro::main;
		3484
		3485	my $signal = new Coro::Signal;
		3486	push @WAIT_FOR_TICK_BEGIN, $signal;
		3487	$signal->wait;
		3488	}
2274		3489
2275	$TICK_WATCHER = Event->timer (	3490	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	3491	reentrant => 0,
		3492	parked => 1,
2277	prio => 0,	3493	prio => 0,
2278	at => $NEXT_TICK || $TICK,	3494	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	3495	data => WF_AUTOCANCEL,
2280	cb => sub {	3496	cb => sub {
		3497	if ($Coro::current != $Coro::main) {
		3498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3499	unless ++$bug_warning > 10;
		3500	return;
		3501	}
		3502
		3503	$NOW = $tick_start = Event::time;
		3504
2281	cf::server_tick; # one server iteration	3505	cf::server_tick; # one server iteration
		3506
2282	$RUNTIME += $TICK;	3507	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	3508	$NEXT_TICK += $TICK;
2284		3509
		3510	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3511	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3512	Coro::async_pool {
		3513	$Coro::current->{desc} = "runtime saver";
		3514	write_runtime
		3515	or warn "ERROR: unable to write runtime file: $!";
		3516	};
		3517	}
		3518
		3519	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3520	$sig->send;
		3521	}
		3522	while (my $sig = shift @WAIT_FOR_TICK) {
		3523	$sig->send;
		3524	}
		3525
		3526	$NOW = Event::time;
		3527
2285	# if we are delayed by four ticks or more, skip them all	3528	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3529	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		3530
2288	$TICK_WATCHER->at ($NEXT_TICK);	3531	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	3532	$TICK_WATCHER->start;
		3533
		3534	$LOAD = ($NOW - $tick_start) / $TICK;
		3535	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3536
		3537	_post_tick;
2290	},	3538	},
2291	);	3539	);
2292		3540
		3541	{
		3542	BDB::min_parallel 8;
2293	IO::AIO::max_poll_time $TICK * 0.2;	3543	BDB::max_poll_time $TICK * 0.1;
2294		3544	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	3545	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	3546	fd => BDB::poll_fileno,
2297	poll => 'r',	3547	poll => 'r',
2298	prio => 5,	3548	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	3549	data => WF_AUTOCANCEL,
		3550	cb => \&BDB::poll_cb,
		3551	);
		3552
		3553	BDB::set_sync_prepare {
		3554	my $status;
		3555	my $current = $Coro::current;
		3556	(
		3557	sub {
		3558	$status = $!;
		3559	$current->ready; undef $current;
		3560	},
		3561	sub {
		3562	Coro::schedule while defined $current;
		3563	$! = $status;
		3564	},
		3565	)
		3566	};
		3567
		3568	unless ($DB_ENV) {
		3569	$DB_ENV = BDB::db_env_create;
		3570	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3571	| BDB::LOG_AUTOREMOVE, 1);
		3572	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3573	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3574
		3575	cf::sync_job {
		3576	eval {
		3577	BDB::db_env_open
		3578	$DB_ENV,
		3579	$BDBDIR,
		3580	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3581	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3582	0666;
		3583
		3584	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3585	};
		3586
		3587	cf::cleanup "db_env_open(db): $@" if $@;
		3588	};
		3589	}
		3590
		3591	$BDB_DEADLOCK_WATCHER = Event->timer (
2305	after => 0,	3592	after => 3,
2306	interval => 10,	3593	interval => 1,
		3594	hard => 1,
		3595	prio => 0,
		3596	data => WF_AUTOCANCEL,
2307	cb => sub {	3597	cb => sub {
2308	(Coro::unblock_sub {	3598	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2309	write_runtime	3599	},
2310	or warn "ERROR: unable to write runtime file: $!";	3600	);
		3601	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3602	after => 11,
		3603	interval => 60,
		3604	hard => 1,
		3605	prio => 0,
		3606	data => WF_AUTOCANCEL,
		3607	cb => sub {
		3608	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3609	},
		3610	);
		3611	$BDB_TRICKLE_WATCHER = Event->timer (
		3612	after => 5,
		3613	interval => 10,
		3614	hard => 1,
		3615	prio => 0,
		3616	data => WF_AUTOCANCEL,
		3617	cb => sub {
		3618	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3619	},
		3620	);
		3621	}
		3622
		3623	{
		3624	IO::AIO::min_parallel 8;
		3625
		3626	undef $Coro::AIO::WATCHER;
		3627	IO::AIO::max_poll_time $TICK * 0.1;
		3628	$AIO_POLL_WATCHER = Event->io (
		3629	reentrant => 0,
		3630	data => WF_AUTOCANCEL,
		3631	fd => IO::AIO::poll_fileno,
		3632	poll => 'r',
		3633	prio => 0,
		3634	cb => \&IO::AIO::poll_cb,
		3635	);
		3636	}
		3637
		3638	my $_log_backtrace;
		3639
		3640	sub _log_backtrace {
		3641	my ($msg, @addr) = @_;
		3642
		3643	$msg =~ s/\n//;
		3644
		3645	# limit the # of concurrent backtraces
		3646	if ($_log_backtrace < 2) {
		3647	++$_log_backtrace;
		3648	async {
		3649	$Coro::current->{desc} = "abt $msg";
		3650
		3651	my @bt = fork_call {
		3652	@addr = map { sprintf "%x", $_ } @addr;
		3653	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3654	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3655	or die "addr2line: $!";
		3656
		3657	my @funcs;
		3658	my @res = <$fh>;
		3659	chomp for @res;
		3660	while (@res) {
		3661	my ($func, $line) = splice @res, 0, 2, ();
		3662	push @funcs, "[$func] $line";
		3663	}
		3664
		3665	@funcs
		3666	};
		3667
		3668	LOG llevInfo, "[ABT] $msg\n";
		3669	LOG llevInfo, "[ABT] $_\n" for @bt;
		3670	--$_log_backtrace;
2311	})->();	3671	};
		3672	} else {
		3673	LOG llevInfo, "[ABT] $msg\n";
		3674	LOG llevInfo, "[ABT] [suppressed]\n";
2312	},	3675	}
2313	);	3676	}
		3677
		3678	# load additional modules
		3679	use cf::pod;
2314		3680
2315	END { cf::emergency_save }	3681	END { cf::emergency_save }
2316		3682
2317	1	3683	1
2318		3684

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