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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.372 by root, Sat Sep 15 13:25:33 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.64 ();
		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 ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$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
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	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(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	80	our $NEXT_TICK;
52	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;
53		89
54	our %CFG;	90	our %CFG;
55		91
56	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	93	our $RUNTIME;
58		94
59	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		98
67	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		105
70	binmode STDOUT;	106	binmode STDOUT;
71	binmode STDERR;	107	binmode STDERR;
72		108
73	# read virtual server time, if available	109	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
78	}	114	}
79		115
80	mkdir cf::localdir;	116	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		118
86	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
87		122
88	#############################################################################	123	#############################################################################
89		124
90	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
91		126
…		…
98	=item $cf::RUNTIME	133	=item $cf::RUNTIME
99		134
100	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
101	every server tick.	136	every server tick.
102		137
103	=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
104		141
105	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		146
108	=item $cf::NOW	147	=item $cf::NOW
109		148
110	The time of the last (current) server tick.	149	The time of the last (current) server tick.
111		150
112	=item $cf::TICK	151	=item $cf::TICK
113		152
114	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.
115		164
116	=item %cf::CFG	165	=item %cf::CFG
117		166
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	168	from wherever your confdir points to.
120		169
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		171
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	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.
127		181
128	=back	182	=back
129		183
130	=cut	184	=cut
131		185
132	BEGIN {	186	BEGIN {
133	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	188	my $msg = join "", @_;
135	utf8::encode $msg;
136		189
137	$msg .= "\n"	190	$msg .= "\n"
138	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
139		194
140	LOG llevError, $msg;	195	LOG llevError, $msg;
141	};	196	};
142	}	197	}
143		198
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		206
151	# 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
152	# within the Safe compartment.	208	# within the Safe compartment.
153	for my $pkg (qw(	209	for my $pkg (qw(
154	cf::global cf::attachable	210	cf::global cf::attachable
…		…
162	}	218	}
163		219
164	$Event::DIED = sub {	220	$Event::DIED = sub {
165	warn "error in event callback: @_";	221	warn "error in event callback: @_";
166	};	222	};
		223
		224	#############################################################################
167		225
168	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
169		227
170	=over 4	228	=over 4
171		229
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	249	$d
192	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
193	}	251	}
194		252
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
198		254
199	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
200		256
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
209		258
210	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
211		260
212	=cut	261	=cut
213		262
214	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
216	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
218		267
219	=item cf::lock_wait $string	268	=item cf::lock_wait $string
220		269
221	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
222		271
…		…
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
228	returned.	277	returned.
229		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
230	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
231	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
232		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
233	=cut	289	=cut
234		290
235	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
236		293
237	sub lock_wait($) {	294	sub lock_wait($) {
238	my ($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#
239		301
240	# wait for lock, if any	302	# wait for lock, if any
241	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	305	Coro::schedule;
…		…
249		311
250	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
251	lock_wait $key;	313	lock_wait $key;
252		314
253	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
254		317
255	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
258	}	322	}
259	}	323	}
260		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
261	sub freeze_mainloop {	331	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
263		333
264	my $guard = Coro::guard {	334	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	335	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	336	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
270	$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	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
271	}	395	}
272		396
273	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
274		398
275	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		404
281	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
282		406
283	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
284		408
285	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
288		413
289	If it must be done, put the blocking parts into C<sync_job>. This will run	414	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	415	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	416	server will be frozen during this time, so the block should either finish
292	fast or be very important.	417	fast or be very important.
…		…
295		420
296	sub sync_job(&) {	421	sub sync_job(&) {
297	my ($job) = @_;	422	my ($job) = @_;
298		423
299	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
300	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
302		429
303	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
315		442
316	while ($busy) {	443	while ($busy) {
317	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
318	}	445	}
319		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
320	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
321	} else {	455	} else {
322	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
323		457
324	$job->()	458	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
344		478
345	$coro	479	$coro
346	}	480	}
347		481
348	sub write_runtime {	482	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		483
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
352	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
353		488
354	my $value = $cf::RUNTIME + 90 + 10;	489	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		490
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	491	sub fork_call(&@) {
359	and return;	492	my ($cb, @args) = @_;
360		493
361	aio_fsync $fh	494	# we seemingly have to make a local copy of the whole thing,
362	and return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
363		497
364	close $fh	498	my @res = Coro::Util::fork_eval {
365	or return;	499	reset_signals;
		500	&$cb
		501	}, @args;
366		502
367	aio_rename "$runtime~", $runtime	503	wantarray ? @res : $res[-1]
368	and return;	504	}
369		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
370	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	642	}
372		643
373	=back	644	=back
374		645
375	=cut	646	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
384		655
385	In the following description, CLASS can be any of C<global>, C<object>	656	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	658	Crossfire TRT).
388		659
389	=over 4	660	=over 4
390		661
391	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
392		663
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
556		827
557	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		832
562	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	834	my $pkg = shift @arg;
564		835
565	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
595	}	866	}
596		867
597	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
598	} else {	869	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	871	}
601		872
602	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
603	}	874	}
604		875
…		…
606	if (ref $_[0]) {	877	if (ref $_[0]) {
607	_object_attach @_;	878	_object_attach @_;
608	} else {	879	} else {
609	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
610	}	881	}
		882	_recalc_want;
611	};	883	};
612		884
613	# all those should be optimised	885	# all those should be optimised
614	sub cf::attachable::detach {	886	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
619	reattach ($obj);	891	reattach ($obj);
620	} else {	892	} else {
621	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
622	}	894	}
		895	_recalc_want;
623	};	896	};
624		897
625	sub cf::attachable::attached {	898	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
627		900
…		…
642	";	915	";
643	die if $@;	916	die if $@;
644	}	917	}
645		918
646	our $override;	919	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		921
649	sub override {	922	sub override {
650	$override = 1;	923	$override = 1;
651	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
652	}	925	}
653		926
654	sub do_invoke {	927	sub do_invoke {
655	my $event = shift;	928	my $event = shift;
656	my $callbacks = shift;	929	my $callbacks = shift;
657		930
658	@invoke_results = ();	931	@INVOKE_RESULTS = ();
659		932
660	local $override;	933	local $override;
661		934
662	for (@$callbacks) {	935	for (@$callbacks) {
663	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
680		953
681	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
682		955
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	957	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		959
687	=back	960	=back
688		961
689	=cut	962	=cut
690		963
691	#############################################################################	964	#############################################################################
692	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
693		977
694	sub reattach {	978	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	980	my ($obj) = @_;
697		981
…		…
742	);	1026	);
743		1027
744	sub object_freezer_save {	1028	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
746		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
747	sync_job {	1033	sync_job {
748	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
751		1038
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1043	close $fh;
757		1044
758	if (@$objs) {	1045	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1046	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1051	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
766	}	1053	}
767	} else {	1054	} else {
768	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
774	}	1061	}
775	} else {	1062	} else {
776	aio_unlink $filename;	1063	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
778	}	1065	}
779	}	1066	};
		1067
		1068	undef $guard;
780	}	1069	}
781		1070
782	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
784		1073
…		…
789		1078
790	sub object_thawer_load {	1079	sub object_thawer_load {
791	my ($filename) = @_;	1080	my ($filename) = @_;
792		1081
793	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
794		1085
795	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
796	or return;	1087	or return;
797		1088
798	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
800	or return;	1091	or return;
		1092
		1093	undef $guard;
801	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
802	}	1095	}
803		1096
		1097	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
806	return ($data, $av);	1101	($data, $av)
807	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
808		1109
809	#############################################################################	1110	#############################################################################
810	# command handling &c	1111	# command handling &c
811		1112
812	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1127	}
827		1128
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1130
830	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.
831		1136
832	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
833	called.	1138	called.
834		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
835	=cut	1151	=cut
836		1152
837	sub register_extcmd {	1153	sub register_extcmd {
838	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
839		1155
840	$EXTCMD{$name} = $cb;	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
841	}	1163	}
842		1164
843	cf::player->attach (	1165	cf::player->attach (
844	on_command => sub {	1166	on_command => sub {
845	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1176	cf::override;
855	},	1177	},
856	on_extcmd => sub {	1178	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
858		1180
859	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1182
861	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
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
867	} else {	1198	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1200	}
870		1201
871	cf::override;	1202	cf::override;
872	},	1203	},
873	);	1204	);
874		1205
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
910	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1211	next unless -r $path;
912	eval {	1212
913	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;
914	1	1270	}
915	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
916	}	1276	};
917	}	1277	}
918		1278
919	#############################################################################	1279	#############################################################################
920		1280
		1281	=back
		1282
921	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
922		1284
923	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
924		1286
925	=cut	1287	=cut
…		…
930		1292
931	=head3 cf::player	1293	=head3 cf::player
932		1294
933	=over 4	1295	=over 4
934		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
935	=item cf::player::find $login	1311	=item cf::player::find $login
936		1312
937	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
938		1314
939	=cut	1315	=cut
940		1316
941	sub playerdir($) {	1317	sub playerdir($) {
942	cf::localdir	1318	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1320	}
948		1321
949	sub path($) {	1322	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1324
952	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
953	}	1326	}
954		1327
955	sub find_active($) {	1328	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1343	my $login = $_[0];
971		1344
972	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
973		1346
974	$cf::PLAYER{$_[0]} || do {	1347	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	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
976	or return;	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;
977	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
978	}	1363	}
979	}	1364	}
980	}	1365	}
981		1366
…		…
991		1376
992	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
994		1379
995	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
996	Coro::cede;	1381	cf::cede_to_tick;
997	}	1382	}
998		1383
999	sub new($) {	1384	sub new($) {
1000	my ($login) = @_;	1385	my ($login) = @_;
1001		1386
…		…
1007	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1008		1393
1009	$self	1394	$self
1010	}	1395	}
1011		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
1012	=item $pl->quit_character	1407	=item $pl->quit_character
1013		1408
1014	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1016		1411
1017	=cut	1412	=cut
1018		1413
1019	sub quit_character {	1414	sub quit_character {
1020	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1021		1418
1022	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1023	$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
1024		1421
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1035	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;
1036	}	1453	}
1037		1454
1038	=item cf::player::list_logins	1455	=item cf::player::list_logins
1039		1456
1040	Returns am arrayref of all valid playernames in the system, can take a	1457	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1042		1459
1043	=cut	1460	=cut
1044		1461
1045	sub list_logins {	1462	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1464	or return [];
1048		1465
1049	my @logins;	1466	my @logins;
1050		1467
1051	for my $login (@$dirs) {	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") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1055		1477
1056	utf8::decode $login;	1478	utf8::decode $login;
1057	push @logins, $login;	1479	push @logins, $login;
1058	}	1480	}
1059		1481
…		…
1067		1489
1068	=cut	1490	=cut
1069		1491
1070	sub maps($) {	1492	sub maps($) {
1071	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1496
1073	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1074	or return;	1498	or return;
1075		1499
1076	my @paths;	1500	my @paths;
…		…
1078	for (@$files) {	1502	for (@$files) {
1079	utf8::decode $_;	1503	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1082		1506
1083	s/\.map$//;	1507	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1508	}
1086		1509
1087	\@paths	1510	\@paths
1088	}	1511	}
1089		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
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1091		1565
1092	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1093		1567
1094	=cut	1568	=cut
1095		1569
1096	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1098		1572
1099	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1574	}
1103		1575
1104	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		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	$match
		1615	}
1105		1616
1106	=back	1617	=back
1107
1108		1618
1109	=head3 cf::map	1619	=head3 cf::map
1110		1620
1111	=over 4	1621	=over 4
1112		1622
…		…
1167	my ($self, $merge) = @_;	1677	my ($self, $merge) = @_;
1168		1678
1169	# we have to keep some variables in memory intact	1679	# we have to keep some variables in memory intact
1170	local $self->{path};	1680	local $self->{path};
1171	local $self->{load_path};	1681	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1682
1175	$self->SUPER::thawer_merge ($merge);	1683	$self->SUPER::thawer_merge ($merge);
1176	}	1684	}
1177		1685
1178	sub normalise {	1686	sub normalise {
1179	my ($path, $base) = @_;	1687	my ($path, $base) = @_;
1180		1688
1181	$path = "$path"; # make sure its a string	1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
1182		1692
1183	# map plan:	1693	# map plan:
1184	#	1694	#
1185	# /! non-realised random map exit (special hack!)	1695	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1696	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1733	$self->init; # pass $1 etc.
1224	return $self;	1734	return $self;
1225	}	1735	}
1226	}	1736	}
1227		1737
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1739	()
1230	}	1740	}
1231		1741
1232	sub init {	1742	sub init {
1233	my ($self) = @_;	1743	my ($self) = @_;
…		…
1248		1758
1249	# the original (read-only) location	1759	# the original (read-only) location
1250	sub load_path {	1760	sub load_path {
1251	my ($self) = @_;	1761	my ($self) = @_;
1252		1762
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1763	"$MAPDIR/$self->{path}.map"
1254	}	1764	}
1255		1765
1256	# the temporary/swap location	1766	# the temporary/swap location
1257	sub save_path {	1767	sub save_path {
1258	my ($self) = @_;	1768	my ($self) = @_;
1259		1769
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1771	"$TMPDIR/$path.map"
1262	}	1772	}
1263		1773
1264	# the unique path, undef == no special unique path	1774	# the unique path, undef == no special unique path
1265	sub uniq_path {	1775	sub uniq_path {
1266	my ($self) = @_;	1776	my ($self) = @_;
1267		1777
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1779	"$UNIQUEDIR/$path"
1270	}	1780	}
1271		1781
1272	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1273	# all maps in C++...	1783	# all maps in C++...
1274	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1276		1786
1277	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1278	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1279	}	1789	}
1280		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
1281	sub unlink_save {	1799	sub unlink_save {
1282	my ($self) = @_;	1800	my ($self) = @_;
1283		1801
1284	utf8::encode (my $save = $self->save_path);	1802	utf8::encode (my $save = $self->save_path);
1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1288		1806
1289	sub load_header_from($) {	1807	sub load_header_from($) {
1290	my ($self, $path) = @_;	1808	my ($self, $path) = @_;
1291		1809
1292	utf8::encode $path;	1810	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1294	or return;	1812	or return;
1295		1813
1296	$self->_load_header ($path)	1814	$self->_load_header ($f)
1297	or return;	1815	or return;
		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
1298		1819
1299	$self->{load_path} = $path;	1820	$self->{load_path} = $path;
1300		1821
1301	1	1822	1
1302	}	1823	}
…		…
1341	$self->load_header_orig	1862	$self->load_header_orig
1342	or return;	1863	or return;
1343	$self->prepare_orig;	1864	$self->prepare_orig;
1344	}	1865	}
1345		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
		1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
1346	1	1873	1
1347	}	1874	}
1348		1875
1349	sub find;	1876	sub find;
1350	sub find {	1877	sub find {
1351	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1352		1879
1353	$path = normalise $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1354		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1883	cf::lock_wait "map_find:$path";
1356		1884
1357	$cf::MAP{$path} || do {	1885	$cf::MAP{$path} || do {
1358	my $guard = cf::lock_acquire "map_find:$path";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
1359	my $map = new_from_path cf::map $path	1889	my $map = new_from_path cf::map $path
1360	or return;	1890	or return;
1361		1891
1362	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1363		1893
1364	$map->load_header	1894	$map->load_header
1365	or return;	1895	or return;
1366		1896
1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1898	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1370	$map->reset;	1902	$map->reset;
1371	undef $guard;
1372	return find $path;	1903	return find $path;
1373	}	1904	}
1374		1905
1375	$cf::MAP{$path} = $map	1906	$cf::MAP{$path} = $map
1376	}	1907	}
…		…
1383	my ($self) = @_;	1914	my ($self) = @_;
1384		1915
1385	local $self->{deny_reset} = 1; # loading can take a long time	1916	local $self->{deny_reset} = 1; # loading can take a long time
1386		1917
1387	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1388	my $guard = cf::lock_acquire "map_load:$path";	1921	my $guard = cf::lock_acquire "map_data:$path";
1389		1922
		1923	return unless $self->valid;
1390	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1391		1925
1392	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1393		1927
1394	$self->alloc;	1928	$self->alloc;
1395		1929
1396	$self->pre_load;	1930	$self->pre_load;
		1931	cf::cede_to_tick;
1397		1932
1398	$self->_load_objects ($self->{load_path}, 1)	1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1399	or return;	1936	or return;
1400		1937
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1402	if delete $self->{load_original};	1939	if delete $self->{load_original};
1403		1940
1404	if (my $uniq = $self->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;	1942	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1407	$self->clear_unique_items;	1945	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1409	}	1949	}
1410	}	1950	}
1411		1951
1412	Coro::cede;	1952	$f->resolve_delayed_derefs;
1413		1953
		1954	cf::cede_to_tick;
1414	# now do the right thing for maps	1955	# now do the right thing for maps
1415	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;
1422	$self->set_darkness_map;
1423	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	1958	unless $self->difficulty;
1425	Coro::cede;	1959	cf::cede_to_tick;
		1960
		1961	unless ($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;
1426	$self->activate;	1968	$self->activate;
		1969	}
		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
		1974	$self->in_memory (cf::MAP_IN_MEMORY);
1427	}	1975	}
1428		1976
1429	$self->post_load;	1977	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	1978	}
1433		1979
1434	sub customise_for {	1980	sub customise_for {
1435	my ($self, $ob) = @_;	1981	my ($self, $ob) = @_;
1436		1982
1437	return find "~" . $ob->name . "/" . $self->{path}	1983	return find "~" . $ob->name . "/" . $self->{path}
1438	if $self->per_player;	1984	if $self->per_player;
1439		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
1440	$self	1989	$self
1441	}	1990	}
1442		1991
1443	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1444	sub load_diag {	1993	sub load_neighbours {
1445	my ($map) = @_;	1994	my ($map) = @_;
1446		1995
1447	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1448		1997
1449	for (0 .. 3) {	1998	for (0 .. 3) {
1450	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1451	or next;	2000	or next;
1452	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1453	or next;	2002	or next;
1454	$neigh->load;	2003	$neigh->load;
1455		2004
		2005	push @neigh,
1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1458	}	2008	}
1459		2009
1460	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1461	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1462	or next;	2013	or next;
1463	$neigh->load;	2014	$neigh->load;
1464	}	2015	}
1465	}	2016	}
1466		2017
…		…
1471	}	2022	}
1472		2023
1473	sub do_load_sync {	2024	sub do_load_sync {
1474	my ($map) = @_;	2025	my ($map) = @_;
1475		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1476	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1477	}	2031	}
1478		2032
1479	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
1480	our $MAP_PREFETCHER = undef;	2034	our $MAP_PREFETCHER = undef;
1481		2035
1482	sub find_async {	2036	sub find_async {
1483	my ($path, $origin) = @_;	2037	my ($path, $origin, $load) = @_;
1484		2038
1485	$path = normalise $path, $origin && $origin->{path};	2039	$path = normalise $path, $origin && $origin->{path};
1486		2040
1487	if (my $map = $cf::MAP{$path}) {	2041	if (my $map = $cf::MAP{$path}) {
1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1489	}	2043	}
1490		2044
1491	undef $MAP_PREFETCH{$path};	2045	$MAP_PREFETCH{$path} |= $load;
		2046
1492	$MAP_PREFETCHER ||= cf::async {	2047	$MAP_PREFETCHER ||= cf::async {
1493	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1494	for my $path (keys %MAP_PREFETCH) {	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1495	my $map = find $path	2050	if (my $map = find $k) {
1496	or next;
1497	$map->load;	2051	$map->load if $v;
		2052	}
1498		2053
1499	delete $MAP_PREFETCH{$path};	2054	delete $MAP_PREFETCH{$k};
1500	}	2055	}
1501	}	2056	}
1502	undef $MAP_PREFETCHER;	2057	undef $MAP_PREFETCHER;
1503	};	2058	};
1504	$MAP_PREFETCHER->prio (6);	2059	$MAP_PREFETCHER->prio (6);
…		…
1507	}	2062	}
1508		2063
1509	sub save {	2064	sub save {
1510	my ($self) = @_;	2065	my ($self) = @_;
1511		2066
1512	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1513		2068
1514	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1515		2070
1516	return unless $self->dirty;	2071	return unless $self->dirty;
1517		2072
…		…
1540	my ($self) = @_;	2095	my ($self) = @_;
1541		2096
1542	# save first because save cedes	2097	# save first because save cedes
1543	$self->save;	2098	$self->save;
1544		2099
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2101
1547	return if $self->players;	2102	return if $self->players;
1548	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1549	return if $self->{deny_save};	2104	return if $self->{deny_save};
1550		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1551	$self->clear;	2110	$self->clear;
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	}	2111	}
1554		2112
1555	sub reset_at {	2113	sub reset_at {
1556	my ($self) = @_;	2114	my ($self) = @_;
1557		2115
1558	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
1560	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1561		2118
1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1564		2121
…		…
1575	my ($self) = @_;	2132	my ($self) = @_;
1576		2133
1577	my $lock = cf::lock_acquire "map_data:$self->{path}";	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2135
1579	return if $self->players;	2136	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#
1581		2137
1582	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1583		2149
1584	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1585		2151
1586	$self->in_memory (cf::MAP_SWAPPED);	2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
1587	$self->clear;	2154	$self->clear;
1588
1589	$_->clear_links_to ($self) for values %cf::MAP;
1590		2155
1591	$self->unlink_save;	2156	$self->unlink_save;
1592	$self->destroy;	2157	$self->destroy;
1593	}	2158	}
1594		2159
1595	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1596		2161
1597	sub nuke {	2162	sub nuke {
1598	my ($self) = @_;	2163	my ($self) = @_;
1599		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
1600	delete $cf::MAP{$self->path};	2168	delete $cf::MAP{$self->path};
1601		2169
1602	$self->unlink_save;	2170	$self->unlink_save;
1603		2171
1604	bless $self, "cf::map";	2172	bless $self, "cf::map";
1605	delete $self->{deny_reset};	2173	delete $self->{deny_reset};
1606	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1607	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1609		2177
1610	$cf::MAP{$self->path} = $self;	2178	$cf::MAP{$self->path} = $self;
		2179	}
1611		2180
1612	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
1613	}	2218	}
1614		2219
1615	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1616		2221
1617	Returns an arrayref of paths of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2223	instantiated unique items. May block.
1619		2224
1620	=cut	2225	=cut
1621		2226
1622	sub unique_maps() {	2227	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1624	or return;	2229	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2230	utf8::decode $_;
1630	next if /\.pst$/;
1631	next unless /^$PATH_SEP/o;
1632
1633	s/\.map$//;	2231	/\.map$/
1634	push @paths, $_;	2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
1635	}	2235	]
1636
1637	\@paths
1638	}	2236	}
1639		2237
1640	package cf;	2238	package cf;
1641		2239
1642	=back	2240	=back
…		…
1660	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1661	}	2259	}
1662		2260
1663	sub inv_recursive {	2261	sub inv_recursive {
1664	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($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	}
1665	}	2294	}
1666		2295
1667	package cf;	2296	package cf;
1668		2297
1669	=back	2298	=back
…		…
1688		2317
1689	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1690		2319
1691	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1692	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1693	} 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 {
1694	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1695	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1696	}	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 (@_);
1697	}	2345	}
1698		2346
1699	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1700		2348
1701	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1748	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1749		2397
1750	return if UNIVERSAL::isa $self->map, "ext::map_link";	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1751		2399
1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1753	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1754		2402
1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1756	}	2404	}
1757		2405
1758	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1759	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1760		2410
1761	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1762		2412
1763	unless ($map) {	2413	unless ($map) {
1764	# restore original map position	2414	# restore original map position
…		…
1778	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1779	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1780	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1781		2431
1782	$map->load;	2432	$map->load;
1783	$map->load_diag;	2433	$map->load_neighbours;
1784		2434
1785	return unless $self->contr->active;	2435	return unless $self->contr->active;
1786	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1788	}	2440	}
1789		2441
1790	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1791	on_logout => sub {
1792	my ($pl) = @_;
1793		2443
1794	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1795	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1796	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1797	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1798	};	2448	be called at the end of this process.
1799	}
1800	},
1801	on_login => sub {
1802	my ($pl) = @_;
1803		2449
1804	# try to abort aborted map switching on player login :)
1805	# should happen only on crashes
1806	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;
1808	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);
1815	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;
1817	})->prio (2);
1818	}
1819	},
1820	);
1821
1822	=item $player_object->goto ($path, $x, $y)
1823
1824	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1825		2453
1826	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1827	my ($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;
1828		2459
1829	$self->enter_link;	2460	$self->enter_link;
1830		2461
1831	(async {	2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
1832	my $map = eval {	2482	my $map = eval {
1833	my $map = cf::map::find $path;	2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1834	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
		2487	$map = $check->($map) if $check && $map;
		2488	} else {
		2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
		2491
1835	$map	2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
1836	} or	2498	}
1837	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1838		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1839	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1840	})->prio (1);	2506	})->prio (1);
1841	}	2507	}
1842		2508
1843	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1844		2510
…		…
1883		2549
1884	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1885		2551
1886	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1887	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2554	my $meta = "$RANDOMDIR/$md5.meta";
1889		2555
1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1891	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
1892	undef $fh;	2558	undef $fh;
1893	aio_rename "$meta~", $meta;	2559	aio_rename "$meta~", $meta;
…		…
1902		2568
1903	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1904		2570
1905	if ($exit->slaying eq "/!") {	2571	if ($exit->slaying eq "/!") {
1906	#TODO: this should de-fi-ni-te-ly not be a sync-job	2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
1907	cf::sync_job { prepare_random_map $exit };	2575	cf::sync_job { prepare_random_map $exit };
1908	}	2576	}
1909		2577
1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911	my $hp = $exit->stats->hp;	2579	my $hp = $exit->stats->hp;
1912	my $sp = $exit->stats->sp;	2580	my $sp = $exit->stats->sp;
1913		2581
1914	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
1915		2587
1916	(async {	2588	(async {
1917	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2590	unless (eval {
1919	$self->goto ($slaying, $hp, $sp);	2591	$self->goto ($slaying, $hp, $sp);
1920		2592
1921	1;	2593	1;
1922	}) {	2594	}) {
1923	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1924	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1925	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1926	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1927		2599
1928	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1929	$self->leave_link;	2601	$self->leave_link;
1930	}	2602	}
1931	})->prio (1);	2603	})->prio (1);
…		…
1944		2616
1945	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1946	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1947		2619
1948	utf8::encode $text;	2620	utf8::encode $text;
1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950	}	2622	}
1951		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1952		2739
1953	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1954		2741
1955	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1958		2745
1959	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1960	reliable at some point in the future.	2747	become reliable at some point in the future.
1961		2748
1962	=cut	2749	=cut
1963		2750
1964	sub cf::client::query {	2751	sub cf::client::query {
1965	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1973	utf8::encode $text;	2760	utf8::encode $text;
1974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1975		2762
1976	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1977	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1978	}	2767	}
1979		2768
1980	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1981	on_reply => sub {	2775	on_reply => sub {
1982	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1983		2777
1984	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1985	# get handled first	2779	# get handled first
1986	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1987	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1988		2782
1989	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990		2785
1991	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1992		2787
1993	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1994	if (@$queue) {	2789	if (@$queue) {
…		…
1996	} else {	2791	} else {
1997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1998	}	2793	}
1999	}	2794	}
2000	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
2001	);	2822	);
2002		2823
2003	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
2004		2825
2005	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2046	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2047	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2048		2869
2049	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2050		2871
2051	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2052		2877
2053	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2054		2879
2055	=pod	2880	=pod
2056		2881
2057	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2058		2883
2059	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2060	cf::object::player player	2888	cf::object::player
2061	cf::player peaceful	2889	player
2062	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2063		2896
2064	=cut	2897	=cut
2065		2898
2066	for (	2899	for (
2067	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2068	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2069	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2070	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2071	) {	2906	) {
2072	no strict 'refs';	2907	no strict 'refs';
…		…
2143	=back	2978	=back
2144		2979
2145	=cut	2980	=cut
2146		2981
2147	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2148		2984
2149	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2150		2987
2151	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2152	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2153	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2154		2991
2155	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2156	using it, it should be unique.
2157		2993
2158	=over 4	2994	warn "loading facedata from $path\n";
2159		2995
2160	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2161		2999
2162	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2163	modified. After modifications, you have to call C<cf::db_dirty> or
2164	C<cf::db_sync>.
2165		3001
2166	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2167		3004
2168	Returns a single value from the database	3005	# patch in the exptable
2169		3006	$facedata->{resource}{"res/exp_table"} = {
2170	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2171		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2172	Stores the given family hashref into the database. Updates are delayed, if
2173	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174
2175	=item cf::db_put $family => $key => $value
2176
2177	Stores the given C<$value> in the family hash. Updates are delayed, if you
2178	want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180	=item cf::db_dirty
2181
2182	Marks the database as dirty, to be updated at a later time.
2183
2184	=item cf::db_sync
2185
2186	Immediately write the database to disk I<if it is dirty>.
2187
2188	=cut
2189
2190	our $DB;
2191
2192	{
2193	my $path = cf::localdir . "/database.pst";
2194
2195	sub db_load() {
2196	$DB = stat $path ? Storable::retrieve $path : { };
2197	}	3009	};
		3010	cf::cede_to_tick;
2198		3011
2199	my $pid;
2200
2201	sub db_save() {
2202	waitpid $pid, 0 if $pid;
2203	if (0 == ($pid = fork)) {
2204	$DB->{_meta}{version} = 1;
2205	Storable::nstore $DB, "$path~";
2206	rename "$path~", $path;
2207	cf::_exit 0 if defined $pid;
2208	}
2209	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2210		3014
2211	my $dirty;	3015	while (my ($face, $info) = each %$faces) {
		3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3017	cf::face::set_visibility $idx, $info->{visibility};
		3018	cf::face::set_magicmap $idx, $info->{magicmap};
		3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2212		3021
2213	sub db_sync() {	3022	cf::cede_to_tick;
2214	db_save if $dirty;
2215	undef $dirty;
2216	}
2217
2218	my $idle = Event->idle (
2219	reentrant => 0,
2220	min => 10,
2221	max => 20,
2222	repeat => 0,
2223	data => WF_AUTOCANCEL,
2224	cb => \&db_sync,
2225	);
2226
2227	sub db_dirty() {
2228	$dirty = 1;
2229	$idle->start;
2230	}
2231
2232	sub db_get($;$) {
2233	@_ >= 2
2234	? $DB->{$_[0]}{$_[1]}
2235	: ($DB->{$_[0]} ||= { })
2236	}
2237
2238	sub db_put($$;$) {
2239	if (@_ >= 3) {
2240	$DB->{$_[0]}{$_[1]} = $_[2];
2241	} else {
2242	$DB->{$_[0]} = $_[1];
2243	}
2244	db_dirty;
2245	}
2246
2247	cf::global->attach (
2248	prio => 10000,
2249	on_cleanup => sub {
2250	db_sync;
2251	},	3023	}
2252	);
2253	}
2254		3024
2255	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2256	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2257		3035
2258	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2259	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2260	or return;	3163	or return;
2261		3164
2262	local $/;	3165	local $/;
2263	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2264		3167
…		…
2283	(async {	3186	(async {
2284	Event::one_event;	3187	Event::one_event;
2285	})->prio (Coro::PRIO_MAX);	3188	})->prio (Coro::PRIO_MAX);
2286	};	3189	};
2287		3190
2288	cfg_load;	3191	reload_config;
2289	db_load;	3192	db_init;
2290	load_extensions;	3193	load_extensions;
2291		3194
2292	$TICK_WATCHER->start;	3195	$TICK_WATCHER->start;
2293	Event::loop;	3196	Event::loop;
2294	}	3197	}
…		…
2309	},	3212	},
2310	);	3213	);
2311	}	3214	}
2312	}	3215	}
2313		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2314	sub emergency_save() {	3255	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2316		3257
2317	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2318		3259
…		…
2333	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	3275	$map->valid or next;
2335	$map->save;	3276	$map->save;
2336	}	3277	}
2337	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2338	};	3283	};
2339		3284
2340	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2341	}	3286	}
2342		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2343	sub reload() {	3295	sub do_reload_perl() {
2344	# can/must only be called in main	3296	# can/must only be called in main
2345	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2346	warn "can only reload from main coroutine";	3298	warn "can only reload from main coroutine";
2347	return;	3299	return;
2348	}	3300	}
2349		3301
2350	warn "reloading...";	3302	warn "reloading...";
2351		3303
2352	warn "cancelling server ticker";	3304	warn "entering sync_job";
2353	$TICK_WATCHER->cancel;
2354		3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2355	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2356		3310
2357	eval {	3311	warn "syncing database to disk";
		3312	BDB::db_env_txn_checkpoint $DB_ENV;
		3313
2358	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2359
2360	warn "syncing database to disk";
2361	cf::db_sync;
2362		3315
2363	warn "cancelling all WF_AUTOCANCEL watchers";	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2364	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2365	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2366	}	3319	}
2367		3320
2368	warn "flushing outstanding aio requests";	3321	warn "flushing outstanding aio requests";
2369	for (;;) {	3322	for (;;) {
		3323	BDB::flush;
2370	IO::AIO::flush;	3324	IO::AIO::flush;
2371	Coro::cede;	3325	Coro::cede;
2372	last unless IO::AIO::nreqs;	3326	last unless IO::AIO::nreqs || BDB::nreqs;
2373	warn "iterate...";	3327	warn "iterate...";
2374	}	3328	}
		3329
		3330	++$RELOAD;
2375		3331
2376	warn "cancelling all extension coros";	3332	warn "cancelling all extension coros";
2377	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2378	%EXT_CORO = ();	3334	%EXT_CORO = ();
2379		3335
2380	warn "removing commands";	3336	warn "removing commands";
2381	%COMMAND = ();	3337	%COMMAND = ();
2382		3338
2383	warn "removing ext commands";	3339	warn "removing ext/exti commands";
2384	%EXTCMD = ();	3340	%EXTCMD = ();
		3341	%EXTICMD = ();
2385		3342
2386	warn "unloading/nuking all extensions";	3343	warn "unloading/nuking all extensions";
2387	for my $pkg (@EXTS) {	3344	for my $pkg (@EXTS) {
2388	warn "... unloading $pkg";	3345	warn "... unloading $pkg";
2389		3346
…		…
2419	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2421		3378
2422	warn "unloading cf.pm \"a bit\"";	3379	warn "unloading cf.pm \"a bit\"";
2423	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2424		3382
2425	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2426	# and global variables created in xs	3384	# and global variables created in xs
2427	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2428		3386
…		…
2431	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2432	require cf;	3390	require cf;
2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434		3392
2435	warn "loading config and database again";	3393	warn "loading config and database again";
2436	cf::cfg_load;	3394	cf::reload_config;
2437	cf::db_load;
2438		3395
2439	warn "loading extensions";	3396	warn "loading extensions";
2440	cf::load_extensions;	3397	cf::load_extensions;
2441		3398
2442	warn "reattaching attachments to objects/players";	3399	warn "reattaching attachments to objects/players";
2443	_global_reattach;	3400	_global_reattach; # objects, sockets
2444	warn "reattaching attachments to maps";	3401	warn "reattaching attachments to maps";
2445	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
		3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2446		3405
2447	warn "restarting server ticker";	3406	warn "leaving sync_job";
2448		3407
2449	$TICK_WATCHER->start;	3408	1
2450	};	3409	} or do {
2451
2452	if ($@) {
2453	warn $@;	3410	warn $@;
2454	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2455	exit 1;	3412	exit 1;
2456	}	3413	};
2457		3414
2458	warn "reloaded";	3415	warn "reloaded";
2459	};	3416	};
2460		3417
2461	our $RELOAD_WATCHER; # used only during reload	3418	our $RELOAD_WATCHER; # used only during reload
2462		3419
		3420	sub reload_perl() {
		3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
		3423
		3424	$RELOAD_WATCHER ||= Event->timer (
		3425	reentrant => 0,
		3426	after => 0,
		3427	data => WF_AUTOCANCEL,
		3428	cb => sub {
		3429	do_reload_perl;
		3430	undef $RELOAD_WATCHER;
		3431	},
		3432	);
		3433	}
		3434
2463	register_command "reload" => sub {	3435	register_command "reload" => sub {
2464	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2465		3437
2466	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2467	$who->message ("reloading server.");	3439	$who->message ("reloading server.");
2468		3440	async { reload_perl };
2469	# doing reload synchronously and two reloads happen back-to-back,
2470	# coro crashes during coro_state_free->destroy here.
2471
2472	$RELOAD_WATCHER ||= Event->timer (
2473	reentrant => 0,
2474	after => 0,
2475	data => WF_AUTOCANCEL,
2476	cb => sub {
2477	reload;
2478	undef $RELOAD_WATCHER;
2479	},
2480	);
2481	}	3441	}
2482	};	3442	};
2483		3443
2484	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
2485		3445
2486	my $bug_warning = 0;	3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
2487		3468
2488	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
2489	reentrant => 0,	3470	reentrant => 0,
2490	parked => 1,	3471	parked => 1,
2491	prio => 0,	3472	prio => 0,
…		…
2496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2497	unless ++$bug_warning > 10;	3478	unless ++$bug_warning > 10;
2498	return;	3479	return;
2499	}	3480	}
2500		3481
2501	$NOW = Event::time;	3482	$NOW = $tick_start = Event::time;
2502		3483
2503	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
2504	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2505	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
2506		3488
2507	$WAIT_FOR_TICK->broadcast;	3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
2509		3491	Coro::async_pool {
2510	Event::sweep;	3492	write_runtime
2511	Coro::cede_notself;	3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
2512		3495	}
2513	# my $AFTER = Event::time;	3496
2514	# warn $AFTER - $NOW;#d#	3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2515		3505
2516	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2518		3508
2519	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2520	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
2521	},	3516	},
2522	);	3517	);
2523		3518
		3519	{
		3520	BDB::min_parallel 8;
		3521	BDB::max_poll_time $TICK * 0.1;
		3522	$BDB_POLL_WATCHER = Event->io (
		3523	reentrant => 0,
		3524	fd => BDB::poll_fileno,
		3525	poll => 'r',
		3526	prio => 0,
		3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3549	| BDB::LOG_AUTOREMOVE, 1);
		3550	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3551	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3552
		3553	cf::sync_job {
		3554	eval {
		3555	BDB::db_env_open
		3556	$DB_ENV,
		3557	$BDBDIR,
		3558	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3559	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3560	0666;
		3561
		3562	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_DEADLOCK_WATCHER = Event->timer (
		3570	after => 3,
		3571	interval => 1,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
		3575	cb => sub {
		3576	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3577	},
		3578	);
		3579	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3580	after => 11,
		3581	interval => 60,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3587	},
		3588	);
		3589	$BDB_TRICKLE_WATCHER = Event->timer (
		3590	after => 5,
		3591	interval => 10,
		3592	hard => 1,
		3593	prio => 0,
		3594	data => WF_AUTOCANCEL,
		3595	cb => sub {
		3596	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3597	},
		3598	);
		3599	}
		3600
		3601	{
		3602	IO::AIO::min_parallel 8;
		3603
		3604	undef $Coro::AIO::WATCHER;
2524	IO::AIO::max_poll_time $TICK * 0.1;	3605	IO::AIO::max_poll_time $TICK * 0.1;
2525
2526	undef $Coro::AIO::WATCHER;
2527	$AIO_POLL_WATCHER = Event->io (	3606	$AIO_POLL_WATCHER = Event->io (
2528	reentrant => 0,	3607	reentrant => 0,
		3608	data => WF_AUTOCANCEL,
2529	fd => IO::AIO::poll_fileno,	3609	fd => IO::AIO::poll_fileno,
2530	poll => 'r',	3610	poll => 'r',
2531	prio => 6,	3611	prio => 6,
2532	data => WF_AUTOCANCEL,
2533	cb => \&IO::AIO::poll_cb,	3612	cb => \&IO::AIO::poll_cb,
2534	);	3613	);
		3614	}
2535		3615
2536	$WRITE_RUNTIME_WATCHER = Event->timer (	3616	my $_log_backtrace;
2537	reentrant => 0,	3617
2538	data => WF_AUTOCANCEL,	3618	sub _log_backtrace {
2539	after => 1,	3619	my ($msg, @addr) = @_;
2540	interval => 10,	3620
2541	prio => 6, # keep it lowest so it acts like a watchdog	3621	$msg =~ s/\n//;
2542	cb => Coro::unblock_sub {	3622
2543	write_runtime	3623	# limit the # of concurrent backtraces
2544	or warn "ERROR: unable to write runtime file: $!";	3624	if ($_log_backtrace < 2) {
		3625	++$_log_backtrace;
		3626	async {
		3627	my @bt = fork_call {
		3628	@addr = map { sprintf "%x", $_ } @addr;
		3629	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3630	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3631	or die "addr2line: $!";
		3632
		3633	my @funcs;
		3634	my @res = <$fh>;
		3635	chomp for @res;
		3636	while (@res) {
		3637	my ($func, $line) = splice @res, 0, 2, ();
		3638	push @funcs, "[$func] $line";
		3639	}
		3640
		3641	@funcs
		3642	};
		3643
		3644	LOG llevInfo, "[ABT] $msg\n";
		3645	LOG llevInfo, "[ABT] $_\n" for @bt;
		3646	--$_log_backtrace;
		3647	};
		3648	} else {
		3649	LOG llevInfo, "[ABT] $msg\n";
		3650	LOG llevInfo, "[ABT] [suppressed]\n";
2545	},	3651	}
2546	);	3652	}
		3653
		3654	# load additional modules
		3655	use cf::pod;
2547		3656
2548	END { cf::emergency_save }	3657	END { cf::emergency_save }
2549		3658
2550	1	3659	1
2551		3660

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