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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.329 by root, Fri Aug 10 05:38:16 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	79	our $NEXT_TICK;
46	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
47		85
48	our %CFG;	86	our %CFG;
49		87
50	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	89	our $RUNTIME;
52		90
53	our %PLAYER; # all users	91	our %PLAYER; # all users
54	our %MAP; # all maps	92	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		94
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
61		101
62	binmode STDOUT;	102	binmode STDOUT;
63	binmode STDERR;	103	binmode STDERR;
64		104
65	# read virtual server time, if available	105	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
70	}	110	}
71		111
72	mkdir cf::localdir;	112	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		114
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
81		118
82	#############################################################################	119	#############################################################################
83		120
84	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
85		122
…		…
92	=item $cf::RUNTIME	129	=item $cf::RUNTIME
93		130
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	132	every server tick.
96		133
97	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		137
99	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
101		142
102	=item $cf::NOW	143	=item $cf::NOW
103		144
104	The time of the last (current) server tick.	145	The time of the last (current) server tick.
105		146
106	=item $cf::TICK	147	=item $cf::TICK
107		148
108	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
109		160
110	=item %cf::CFG	161	=item %cf::CFG
111		162
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	164	from wherever your confdir points to.
114		165
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		167
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
121		177
122	=back	178	=back
123		179
124	=cut	180	=cut
125		181
126	BEGIN {	182	BEGIN {
127	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	184	my $msg = join "", @_;
129	utf8::encode $msg;
130		185
131	$msg .= "\n"	186	$msg .= "\n"
132	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
133		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
134	LOG llevError, $msg;	192	LOG llevError, $msg;
135	};	193	};
136	}	194	}
137		195
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		203
145	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	205	# within the Safe compartment.
147	for my $pkg (qw(	206	for my $pkg (qw(
148	cf::global cf::attachable	207	cf::global cf::attachable
…		…
157		216
158	$Event::DIED = sub {	217	$Event::DIED = sub {
159	warn "error in event callback: @_";	218	warn "error in event callback: @_";
160	};	219	};
161		220
162	my %ext_pkg;	221	#############################################################################
163	my @exts;
164	my @hook;
165		222
166	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
167		224
168	=over 4	225	=over 4
169		226
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	246	$d
190	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
191	}	248	}
192		249
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
196		251
197	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
198		253
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
207		255
208	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
209		257
210	=cut	258	=cut
211		259
212	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
214	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
215	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
216		264
217	=item cf::lock_wait $string	265	=item cf::lock_wait $string
218		266
219	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
220		268
…		…
226	returned.	274	returned.
227		275
228	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
230		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
231	=cut	283	=cut
232		284
233	our %LOCK;	285	our %LOCK;
234		286
235	sub lock_wait($) {	287	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
256	}	308	}
257	}	309	}
258		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
259	sub freeze_mainloop {	317	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
261		319
262	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
263	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
264	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
265	}	381	}
266		382
267	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
268		384
269	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		390
275	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
276		392
277	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
278		394
279	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
282		399
283	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
286	fast or be very important.	403	fast or be very important.
…		…
289		406
290	sub sync_job(&) {	407	sub sync_job(&) {
291	my ($job) = @_;	408	my ($job) = @_;
292		409
293	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
294	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
296		415
297	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
309		428
310	while ($busy) {	429	while ($busy) {
311	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
312	}	431	}
313		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
314	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
315	} else {	441	} else {
316	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
317		443
318	$job->()	444	$job->()
319	}	445	}
320	}	446	}
321		447
322	=item $coro = cf::async_ext { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
323		449
324	Like async, but this coro is automcatially being canceled when the	450	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	451	extension calling this is being unloaded.
326		452
327	=cut	453	=cut
328		454
329	sub async_ext(&) {	455	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
338		464
339	$coro	465	$coro
340	}	466	}
341		467
342	sub write_runtime {	468	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		469
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
346	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
347		474
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		476
352	aio_fsync $fh	477	sub _store_scalar {
353	and return;	478	open my $fh, ">", \my $buf
354		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
355	close $fh	481	close $fh;
356	or return;
357		482
358	aio_rename "$runtime~", $runtime	483	$buf
359	and return;	484	}
360		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
361	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	655	}
363		656
364	=back	657	=back
365		658
366	=cut	659	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		660
490	#############################################################################	661	#############################################################################
491		662
492	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
493		664
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
497		668
498	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	671	Crossfire TRT).
501		672
502	=over 4	673	=over 4
503		674
504	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
505		676
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	791	our @CB_MAP = ();
621		792
622	my %attachment;	793	my %attachment;
623		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
624	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
626		803
627	use sort 'stable';	804	use sort 'stable';
628		805
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
663		840
664	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		845
669	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	847	my $pkg = shift @arg;
671		848
672	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
702	}	879	}
703		880
704	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
705	} else {	882	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	884	}
708		885
709	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
710	}	887	}
711		888
…		…
713	if (ref $_[0]) {	890	if (ref $_[0]) {
714	_object_attach @_;	891	_object_attach @_;
715	} else {	892	} else {
716	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
717	}	894	}
		895	_recalc_want;
718	};	896	};
719		897
720	# all those should be optimised	898	# all those should be optimised
721	sub cf::attachable::detach {	899	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
726	reattach ($obj);	904	reattach ($obj);
727	} else {	905	} else {
728	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
729	}	907	}
		908	_recalc_want;
730	};	909	};
731		910
732	sub cf::attachable::attached {	911	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
734		913
…		…
749	";	928	";
750	die if $@;	929	die if $@;
751	}	930	}
752		931
753	our $override;	932	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		934
756	sub override {	935	sub override {
757	$override = 1;	936	$override = 1;
758	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
759	}	938	}
760		939
761	sub do_invoke {	940	sub do_invoke {
762	my $event = shift;	941	my $event = shift;
763	my $callbacks = shift;	942	my $callbacks = shift;
764		943
765	@invoke_results = ();	944	@INVOKE_RESULTS = ();
766		945
767	local $override;	946	local $override;
768		947
769	for (@$callbacks) {	948	for (@$callbacks) {
770	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
787		966
788	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
789		968
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		972
794	=back	973	=back
795		974
796	=cut	975	=cut
797		976
798	#############################################################################	977	#############################################################################
799	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
800		990
801	sub reattach {	991	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		996
805	my $registry = $obj->registry;	997	my $registry = $obj->registry;
806		998
807	@$registry = ();	999	@$registry = ();
808		1000
…		…
855	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
856		1048
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1053	close $fh;
862		1054
863	if (@$objs) {	1055	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1061	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
871	}	1063	}
872	} else {	1064	} else {
873	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
905	or return;	1097	or return;
906	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
907	}	1099	}
908		1100
909	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
911	return ($data, $av);	1103	return ($data, $av);
912	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
913		1111
914	#############################################################################	1112	#############################################################################
915	# command handling &c	1113	# command handling &c
916		1114
917	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1129	}
932		1130
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1132
935	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
936		1138
937	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
938	called.	1140	called.
939		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
940	=cut	1153	=cut
941		1154
942	sub register_extcmd {	1155	sub register_extcmd {
943	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
944		1157
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
949	}	1165	}
950		1166
951	cf::player->attach (	1167	cf::player->attach (
952	on_command => sub {	1168	on_command => sub {
953	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1178	cf::override;
963	},	1179	},
964	on_extcmd => sub {	1180	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
966		1182
967	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1184
969	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
972	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
973	}	1195	if $reply;
974	}	1196	}
975	} else {	1197	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1199	}
978		1200
979	cf::override;	1201	cf::override;
980	},	1202	},
981	);	1203	);
982		1204
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1060	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1210	next unless -r $path;
1062	eval {	1211
1063	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
1064	1	1269	}
1065	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1066	}	1275	};
1067	}	1276	}
1068		1277
1069	#############################################################################	1278	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1279
1072	*cf::mapsupport::on_clean = sub {	1280	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1281
1085	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1086		1283
1087	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1088		1285
…		…
1101	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
1102		1299
1103	=cut	1300	=cut
1104		1301
1105	sub playerdir($) {	1302	sub playerdir($) {
1106	cf::localdir	1303	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1305	}
1112		1306
1113	sub path($) {	1307	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1309
1116	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
1117	}	1311	}
1118		1312
1119	sub find_active($) {	1313	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
1124		1318
1125	sub exists($) {	1319	sub exists($) {
1126	my ($login) = @_;	1320	my ($login) = @_;
1127		1321
1128	$cf::PLAYER{$login}	1322	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1323	or cf::sync_job { !aio_stat path $login }
1130	}	1324	}
1131		1325
1132	sub find($) {	1326	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1327	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1328	my $login = $_[0];
1135		1329
1136	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
1137		1331
1138	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
1139	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
1140	or return;	1341	or return;
1141	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
1142	}	1343	}
1143	}	1344	}
…		…
1171	$cf::PLAYER{$login} = $self;	1372	$cf::PLAYER{$login} = $self;
1172		1373
1173	$self	1374	$self
1174	}	1375	}
1175		1376
		1377	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1378
		1379	=cut
		1380
		1381	sub send_msg {
		1382	my $ns = shift->ns
		1383	or return;
		1384	$ns->send_msg (@_);
		1385	}
		1386
1176	=item $pl->quit_character	1387	=item $pl->quit_character
1177		1388
1178	Nukes the player without looking back. If logged in, the connection will	1389	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1390	be destroyed. May block for a long time.
1180		1391
1181	=cut	1392	=cut
1182		1393
1183	sub quit_character {	1394	sub quit_character {
1184	my ($pl) = @_;	1395	my ($pl) = @_;
		1396
		1397	my $name = $pl->ob->name;
1185		1398
1186	$pl->{deny_save} = 1;	1399	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1400	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1401
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1402	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1407	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1408	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1409	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1410	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1411	$pl->destroy;
		1412
		1413	my $prefix = qr<^~\Q$name\E/>;
		1414
		1415	# nuke player maps
		1416	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1417
1199	IO::AIO::aio_rmtree $temp;	1418	IO::AIO::aio_rmtree $temp;
		1419	}
		1420
		1421	=item $pl->kick
		1422
		1423	Kicks a player out of the game. This destroys the connection.
		1424
		1425	=cut
		1426
		1427	sub kick {
		1428	my ($pl, $kicker) = @_;
		1429
		1430	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1431	$pl->killer ("kicked");
		1432	$pl->ns->destroy;
1200	}	1433	}
1201		1434
1202	=item cf::player::list_logins	1435	=item cf::player::list_logins
1203		1436
1204	Returns am arrayref of all valid playernames in the system, can take a	1437	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1438	while and may block, so not sync_job-capable, ever.
1206		1439
1207	=cut	1440	=cut
1208		1441
1209	sub list_logins {	1442	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1443	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1444	or return [];
1212		1445
1213	my @logins;	1446	my @logins;
1214		1447
1215	for my $login (@$dirs) {	1448	for my $login (@$dirs) {
…		…
1224	\@logins	1457	\@logins
1225	}	1458	}
1226		1459
1227	=item $player->maps	1460	=item $player->maps
1228		1461
1229	Returns an arrayref of cf::path's of all maps that are private for this	1462	Returns an arrayref of map paths that are private for this
1230	player. May block.	1463	player. May block.
1231		1464
1232	=cut	1465	=cut
1233		1466
1234	sub maps($) {	1467	sub maps($) {
1235	my ($pl) = @_;	1468	my ($pl) = @_;
		1469
		1470	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1471
1237	my $files = aio_readdir playerdir $pl	1472	my $files = aio_readdir playerdir $pl
1238	or return;	1473	or return;
1239		1474
1240	my @paths;	1475	my @paths;
1241		1476
1242	for (@$files) {	1477	for (@$files) {
1243	utf8::decode $_;	1478	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1479	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1480	next unless /^$PATH_SEP/o;
1246		1481
1247	s/$PATH_SEP/\//g;	1482	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1483	}
1250		1484
1251	\@paths	1485	\@paths
1252	}	1486	}
1253		1487
		1488	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1489
		1490	Expand crossfire pod fragments into protocol xml.
		1491
		1492	=cut
		1493
		1494	sub expand_cfpod {
		1495	((my $self), (local $_)) = @_;
		1496
		1497	# escape & and <
		1498	s/&/&amp;/g;
		1499	s/(?<![BIUGH])</&lt;/g;
		1500
		1501	# this is buggy, it needs to properly take care of nested <'s
		1502
		1503	1 while
		1504	# replace B<>, I<>, U<> etc.
		1505	s/B<([^\>]*)>/<b>$1<\/b>/
		1506	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1507	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1508	# replace G<male|female> tags
		1509	|| s{G<([^>|]*)\|([^>]*)>}{
		1510	$self->gender ? $2 : $1
		1511	}ge
		1512	# replace H<hint text>
		1513	|| s{H<([^\>]*)>}
		1514	{
		1515	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1516	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1517	"")
		1518	[$self->{hintmode}]
		1519	}ge;
		1520
		1521	# create single paragraphs (very hackish)
		1522	s/(?<=\S)\n(?=\w)/ /g;
		1523
		1524	# compress some whitespace
		1525	s/\s+\n/\n/g; # ws line-ends
		1526	s/\n\n+/\n/g; # double lines
		1527	s/^\n+//; # beginning lines
		1528	s/\n+$//; # ending lines
		1529
		1530	$_
		1531	}
		1532
		1533	sub hintmode {
		1534	$_[0]{hintmode} = $_[1] if @_ > 1;
		1535	$_[0]{hintmode}
		1536	}
		1537
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1538	=item $player->ext_reply ($msgid, @msg)
1255		1539
1256	Sends an ext reply to the player.	1540	Sends an ext reply to the player.
1257		1541
1258	=cut	1542	=cut
1259		1543
1260	sub ext_reply($$$%) {	1544	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1545	my ($self, $id, @msg) = @_;
1262		1546
1263	$msg{msgid} = $id;	1547	if ($self->ns->extcmd == 2) {
1264		1548	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1265	$self->send ("ext " . cf::to_json \%msg);	1549	} elsif ($self->ns->extcmd == 1) {
		1550	#TODO: version 1, remove
		1551	unshift @msg, msgtype => "reply", msgid => $id;
		1552	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1553	}
1266	}	1554	}
1267		1555
1268	package cf;	1556	=item $player->ext_msg ($type, @msg)
		1557
		1558	Sends an ext event to the client.
		1559
		1560	=cut
		1561
		1562	sub ext_msg($$@) {
		1563	my ($self, $type, @msg) = @_;
		1564
		1565	$self->ns->ext_msg ($type, @msg);
		1566	}
		1567
		1568	=head3 cf::region
		1569
		1570	=over 4
		1571
		1572	=cut
		1573
		1574	package cf::region;
		1575
		1576	=item cf::region::find_by_path $path
		1577
		1578	Tries to decuce the likely region for a map knowing only its path.
		1579
		1580	=cut
		1581
		1582	sub find_by_path($) {
		1583	my ($path) = @_;
		1584
		1585	my ($match, $specificity);
		1586
		1587	for my $region (list) {
		1588	if ($region->{match} && $path =~ $region->{match}) {
		1589	($match, $specificity) = ($region, $region->specificity)
		1590	if $region->specificity > $specificity;
		1591	}
		1592	}
		1593
		1594	$match
		1595	}
1269		1596
1270	=back	1597	=back
1271
1272		1598
1273	=head3 cf::map	1599	=head3 cf::map
1274		1600
1275	=over 4	1601	=over 4
1276		1602
…		…
1279	package cf::map;	1605	package cf::map;
1280		1606
1281	use Fcntl;	1607	use Fcntl;
1282	use Coro::AIO;	1608	use Coro::AIO;
1283		1609
		1610	use overload
		1611	'""' => \&as_string,
		1612	fallback => 1;
		1613
1284	our $MAX_RESET = 3600;	1614	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1615	our $DEFAULT_RESET = 3000;
1286		1616
1287	sub generate_random_map {	1617	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1618	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1619	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1620	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1621	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1622	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1623	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1624	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1625	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1626	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1627	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1628	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1629	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1630	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1631	(cf::region::find $rmp->{region}), $rmp->{custom}
		1632	)
		1633	}
		1634
		1635	=item cf::map->register ($regex, $prio)
		1636
		1637	Register a handler for the map path matching the given regex at the
		1638	givne priority (higher is better, built-in handlers have priority 0, the
		1639	default).
		1640
		1641	=cut
		1642
		1643	sub register {
		1644	my (undef, $regex, $prio) = @_;
		1645	my $pkg = caller;
		1646
		1647	no strict;
		1648	push @{"$pkg\::ISA"}, __PACKAGE__;
		1649
		1650	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1651	}
		1652
		1653	# also paths starting with '/'
		1654	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1655
		1656	sub thawer_merge {
		1657	my ($self, $merge) = @_;
		1658
		1659	# we have to keep some variables in memory intact
		1660	local $self->{path};
		1661	local $self->{load_path};
		1662
		1663	$self->SUPER::thawer_merge ($merge);
		1664	}
		1665
		1666	sub normalise {
		1667	my ($path, $base) = @_;
		1668
		1669	$path = "$path"; # make sure its a string
		1670
		1671	$path =~ s/\.map$//;
		1672
		1673	# map plan:
		1674	#
		1675	# /! non-realised random map exit (special hack!)
		1676	# {... are special paths that are not being touched
		1677	# ?xxx/... are special absolute paths
		1678	# ?random/... random maps
		1679	# /... normal maps
		1680	# ~user/... per-player map of a specific user
		1681
		1682	$path =~ s/$PATH_SEP/\//go;
		1683
		1684	# treat it as relative path if it starts with
		1685	# something that looks reasonable
		1686	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1687	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1688
		1689	$base =~ s{[^/]+/?$}{};
		1690	$path = "$base/$path";
		1691	}
		1692
		1693	for ($path) {
		1694	redo if s{//}{/};
		1695	redo if s{/\.?/}{/};
		1696	redo if s{/[^/]+/\.\./}{/};
		1697	}
		1698
		1699	$path
		1700	}
		1701
		1702	sub new_from_path {
		1703	my (undef, $path, $base) = @_;
		1704
		1705	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1706
		1707	$path = normalise $path, $base;
		1708
		1709	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1710	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1711	my $self = bless cf::map::new, $pkg;
		1712	$self->{path} = $path; $self->path ($path);
		1713	$self->init; # pass $1 etc.
		1714	return $self;
		1715	}
		1716	}
		1717
		1718	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1719	()
		1720	}
		1721
		1722	sub init {
		1723	my ($self) = @_;
		1724
		1725	$self
		1726	}
		1727
		1728	sub as_string {
		1729	my ($self) = @_;
		1730
		1731	"$self->{path}"
		1732	}
		1733
		1734	# the displayed name, this is a one way mapping
		1735	sub visible_name {
		1736	&as_string
		1737	}
		1738
		1739	# the original (read-only) location
		1740	sub load_path {
		1741	my ($self) = @_;
		1742
		1743	"$MAPDIR/$self->{path}.map"
		1744	}
		1745
		1746	# the temporary/swap location
		1747	sub save_path {
		1748	my ($self) = @_;
		1749
		1750	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1751	"$TMPDIR/$path.map"
		1752	}
		1753
		1754	# the unique path, undef == no special unique path
		1755	sub uniq_path {
		1756	my ($self) = @_;
		1757
		1758	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1759	"$UNIQUEDIR/$path"
1304	}	1760	}
1305		1761
1306	# and all this just because we cannot iterate over	1762	# and all this just because we cannot iterate over
1307	# all maps in C++...	1763	# all maps in C++...
1308	sub change_all_map_light {	1764	sub change_all_map_light {
…		…
1310		1766
1311	$_->change_map_light ($change)	1767	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1768	for grep $_->outdoor, values %cf::MAP;
1313	}	1769	}
1314		1770
		1771	sub decay_objects {
		1772	my ($self) = @_;
		1773
		1774	return if $self->{deny_reset};
		1775
		1776	$self->do_decay_objects;
		1777	}
		1778
		1779	sub unlink_save {
		1780	my ($self) = @_;
		1781
		1782	utf8::encode (my $save = $self->save_path);
		1783	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1784	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1785	}
		1786
1315	sub try_load_header($) {	1787	sub load_header_from($) {
1316	my ($path) = @_;	1788	my ($self, $path) = @_;
1317		1789
1318	utf8::encode $path;	1790	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1791	#aio_open $path, O_RDONLY, 0
		1792	# or return;
		1793
		1794	$self->_load_header ($path)
1320	or return;	1795	or return;
1321		1796
1322	my $map = cf::map::new	1797	$self->{load_path} = $path;
		1798
		1799	1
		1800	}
		1801
		1802	sub load_header_orig {
		1803	my ($self) = @_;
		1804
		1805	$self->load_header_from ($self->load_path)
		1806	}
		1807
		1808	sub load_header_temp {
		1809	my ($self) = @_;
		1810
		1811	$self->load_header_from ($self->save_path)
		1812	}
		1813
		1814	sub prepare_temp {
		1815	my ($self) = @_;
		1816
		1817	$self->last_access ((delete $self->{last_access})
		1818	|| $cf::RUNTIME); #d#
		1819	# safety
		1820	$self->{instantiate_time} = $cf::RUNTIME
		1821	if $self->{instantiate_time} > $cf::RUNTIME;
		1822	}
		1823
		1824	sub prepare_orig {
		1825	my ($self) = @_;
		1826
		1827	$self->{load_original} = 1;
		1828	$self->{instantiate_time} = $cf::RUNTIME;
		1829	$self->last_access ($cf::RUNTIME);
		1830	$self->instantiate;
		1831	}
		1832
		1833	sub load_header {
		1834	my ($self) = @_;
		1835
		1836	if ($self->load_header_temp) {
		1837	$self->prepare_temp;
		1838	} else {
		1839	$self->load_header_orig
1323	or return;	1840	or return;
		1841	$self->prepare_orig;
		1842	}
1324		1843
1325	# for better error messages only, will be overwritten	1844	$self->{deny_reset} = 1
1326	$map->path ($path);	1845	if $self->no_reset;
1327		1846
1328	$map->load_header ($path)	1847	$self->default_region (cf::region::find_by_path $self->{path})
1329	or return;	1848	unless $self->default_region;
1330		1849
1331	$map->{load_path} = $path;	1850	1
1332
1333	$map
1334	}	1851	}
1335		1852
1336	sub find;	1853	sub find;
1337	sub find {	1854	sub find {
1338	my ($path, $origin) = @_;	1855	my ($path, $origin) = @_;
1339		1856
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1857	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1858
1345	cf::lock_wait "map_find:$key";	1859	cf::lock_wait "map_find:$path";
1346		1860
1347	$cf::MAP{$key} || do {	1861	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1862	my $guard = cf::lock_acquire "map_find:$path";
1349		1863	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1864	or return;
1369		1865
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1866	$map->{last_save} = $cf::RUNTIME;
1382		1867
1383	Coro::cede;	1868	$map->load_header
		1869	or return;
1384		1870
1385	if ($map->should_reset) {	1871	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1872	# doing this can freeze the server in a sync job, obviously
		1873	#$cf::WAIT_FOR_TICK->wait;
1386	$map->reset;	1874	$map->reset;
1387	undef $guard;	1875	undef $guard;
1388	$map = find $path	1876	return find $path;
1389	or return;
1390	}	1877	}
1391		1878
1392	$cf::MAP{$key} = $map	1879	$cf::MAP{$path} = $map
1393	}	1880	}
1394	}	1881	}
		1882
		1883	sub pre_load { }
		1884	sub post_load { }
1395		1885
1396	sub load {	1886	sub load {
1397	my ($self) = @_;	1887	my ($self) = @_;
1398		1888
		1889	local $self->{deny_reset} = 1; # loading can take a long time
		1890
1399	my $path = $self->{path};	1891	my $path = $self->{path};
		1892
		1893	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1894	my $guard = cf::lock_acquire "map_load:$path";
1401		1895
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1896	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1897
1404	$self->in_memory (cf::MAP_LOADING);	1898	$self->in_memory (cf::MAP_LOADING);
1405		1899
1406	$self->alloc;	1900	$self->alloc;
		1901
		1902	$self->pre_load;
		1903	Coro::cede;
		1904
1407	$self->load_objects ($self->{load_path}, 1)	1905	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1906	or return;
1409		1907
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1908	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1909	if delete $self->{load_original};
1412		1910
1413	if (my $uniq = $path->uniq_path) {	1911	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1912	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1913	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1914	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1915	$self->_load_objects ($uniq, 0);
1418	}	1916	}
1419	}	1917	}
1420		1918
1421	Coro::cede;	1919	Coro::cede;
1422
1423	# now do the right thing for maps	1920	# now do the right thing for maps
1424	$self->link_multipart_objects;	1921	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1922	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	1923	unless $self->difficulty;
		1924	Coro::cede;
		1925
		1926	unless ($self->{deny_activate}) {
		1927	$self->decay_objects;
		1928	$self->fix_auto_apply;
		1929	$self->update_buttons;
		1930	Coro::cede;
		1931	$self->set_darkness_map;
		1932	Coro::cede;
1436	$self->activate;	1933	$self->activate;
1437	}	1934	}
1438		1935
1439	Coro::cede;	1936	$self->{last_save} = $cf::RUNTIME;
		1937	$self->last_access ($cf::RUNTIME);
1440		1938
1441	$self->in_memory (cf::MAP_IN_MEMORY);	1939	$self->in_memory (cf::MAP_IN_MEMORY);
		1940	}
		1941
		1942	$self->post_load;
		1943	}
		1944
		1945	sub customise_for {
		1946	my ($self, $ob) = @_;
		1947
		1948	return find "~" . $ob->name . "/" . $self->{path}
		1949	if $self->per_player;
		1950
		1951	# return find "?party/" . $ob->name . "/" . $self->{path}
		1952	# if $self->per_party;
		1953
		1954	$self
1442	}	1955	}
1443		1956
1444	# find and load all maps in the 3x3 area around a map	1957	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	1958	sub load_diag {
1446	my ($map) = @_;	1959	my ($map) = @_;
…		…
1476		1989
1477	cf::sync_job { $map->load };	1990	cf::sync_job { $map->load };
1478	}	1991	}
1479		1992
1480	our %MAP_PREFETCH;	1993	our %MAP_PREFETCH;
1481	our $MAP_PREFETCHER = Coro::async {	1994	our $MAP_PREFETCHER = undef;
1482	while () {
1483	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH
1485	or next;
1486	my $path = delete $MAP_PREFETCH{$key};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}
1492	Coro::schedule;
1493	}
1494	};
1495		1995
1496	sub find_async {	1996	sub find_async {
1497	my ($path, $origin) = @_;	1997	my ($path, $origin) = @_;
1498		1998
1499	$path = new cf::path $path, $origin && $origin->path;	1999	$path = normalise $path, $origin && $origin->{path};
1500	my $key = $path->as_string;
1501		2000
1502	if (my $map = $cf::MAP{$key}) {	2001	if (my $map = $cf::MAP{$path}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2002	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}	2003	}
1505		2004
1506	$MAP_PREFETCH{$key} = $path;	2005	undef $MAP_PREFETCH{$path};
		2006	$MAP_PREFETCHER ||= cf::async {
		2007	while (%MAP_PREFETCH) {
		2008	for my $path (keys %MAP_PREFETCH) {
		2009	if (my $map = find $path) {
		2010	$map->load;
		2011	}
		2012
		2013	delete $MAP_PREFETCH{$path};
		2014	}
		2015	}
		2016	undef $MAP_PREFETCHER;
		2017	};
1507	$MAP_PREFETCHER->ready;	2018	$MAP_PREFETCHER->prio (6);
1508		2019
1509	()	2020	()
1510	}	2021	}
1511		2022
1512	sub save {	2023	sub save {
…		…
1516		2027
1517	$self->{last_save} = $cf::RUNTIME;	2028	$self->{last_save} = $cf::RUNTIME;
1518		2029
1519	return unless $self->dirty;	2030	return unless $self->dirty;
1520		2031
1521	my $save = $self->{path}->save_path; utf8::encode $save;	2032	my $save = $self->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2033	my $uniq = $self->uniq_path; utf8::encode $uniq;
1523		2034
1524	$self->{load_path} = $save;	2035	$self->{load_path} = $save;
1525		2036
1526	return if $self->{deny_save};	2037	return if $self->{deny_save};
1527		2038
…		…
1530	cf::async {	2041	cf::async {
1531	$_->contr->save for $self->players;	2042	$_->contr->save for $self->players;
1532	};	2043	};
1533		2044
1534	if ($uniq) {	2045	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2046	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);	2047	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	2048	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2049	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}	2050	}
1540	}	2051	}
1541		2052
1542	sub swap_out {	2053	sub swap_out {
1543	my ($self) = @_;	2054	my ($self) = @_;
…		…
1557		2068
1558	sub reset_at {	2069	sub reset_at {
1559	my ($self) = @_;	2070	my ($self) = @_;
1560		2071
1561	# TODO: safety, remove and allow resettable per-player maps	2072	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2073	return 1e99 if $self->{deny_reset};
1564		2074
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2075	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2076	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2077
…		…
1572	my ($self) = @_;	2082	my ($self) = @_;
1573		2083
1574	$self->reset_at <= $cf::RUNTIME	2084	$self->reset_at <= $cf::RUNTIME
1575	}	2085	}
1576		2086
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2087	sub reset {
1599	my ($self) = @_;	2088	my ($self) = @_;
1600		2089
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2090	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2091
1603	return if $self->players;	2092	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2093
1606	warn "resetting map ", $self->path;#d#	2094	warn "resetting map ", $self->path;
		2095
		2096	$self->in_memory (cf::MAP_SWAPPED);
		2097
		2098	# need to save uniques path
		2099	unless ($self->{deny_save}) {
		2100	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2101
		2102	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2103	if $uniq;
		2104	}
1607		2105
1608	delete $cf::MAP{$self->path};	2106	delete $cf::MAP{$self->path};
		2107
		2108	$self->clear;
1609		2109
1610	$_->clear_links_to ($self) for values %cf::MAP;	2110	$_->clear_links_to ($self) for values %cf::MAP;
1611		2111
1612	$self->unlink_save;	2112	$self->unlink_save;
1613	$self->destroy;	2113	$self->destroy;
…		…
1616	my $nuke_counter = "aaaa";	2116	my $nuke_counter = "aaaa";
1617		2117
1618	sub nuke {	2118	sub nuke {
1619	my ($self) = @_;	2119	my ($self) = @_;
1620		2120
		2121	delete $cf::MAP{$self->path};
		2122
		2123	$self->unlink_save;
		2124
		2125	bless $self, "cf::map";
		2126	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2127	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2128	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2129	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2130
		2131	$cf::MAP{$self->path} = $self;
		2132
1624	$self->reset; # polite request, might not happen	2133	$self->reset; # polite request, might not happen
1625	}	2134	}
1626		2135
1627	sub customise_for {	2136	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2137
1630	if ($map->per_player) {	2138	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2139	maps. May block.
		2140
		2141	=cut
		2142
		2143	sub tmp_maps() {
1632	}	2144	[
		2145	map {
		2146	utf8::decode $_;
		2147	/\.map$/
		2148	? normalise $_
		2149	: ()
		2150	} @{ aio_readdir $TMPDIR or [] }
		2151	]
		2152	}
1633		2153
1634	$map	2154	=item $maps = cf::map::random_maps
		2155
		2156	Returns an arrayref with all map paths of currently instantiated and saved
		2157	random maps. May block.
		2158
		2159	=cut
		2160
		2161	sub random_maps() {
		2162	[
		2163	map {
		2164	utf8::decode $_;
		2165	/\.map$/
		2166	? normalise "?random/$_"
		2167	: ()
		2168	} @{ aio_readdir $RANDOMDIR or [] }
		2169	]
		2170	}
		2171
		2172	=item cf::map::unique_maps
		2173
		2174	Returns an arrayref of paths of all shared maps that have
		2175	instantiated unique items. May block.
		2176
		2177	=cut
		2178
		2179	sub unique_maps() {
		2180	[
		2181	map {
		2182	utf8::decode $_;
		2183	/\.map$/
		2184	? normalise $_
		2185	: ()
		2186	} @{ aio_readdir $UNIQUEDIR or [] }
		2187	]
1635	}	2188	}
1636		2189
1637	package cf;	2190	package cf;
1638		2191
1639	=back	2192	=back
…		…
1685		2238
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2239	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2240
1688	if ($self->{record_replies}) {	2241	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2242	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2243
1690	} else {	2244	} else {
		2245	my $pl = $self->contr;
		2246
		2247	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2248	my $dialog = $pl->{npc_dialog};
		2249	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2250
		2251	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2252	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2253	$self->message ($msg, $flags);
		2254	}
1693	}	2255	}
		2256	}
		2257
		2258	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2259
		2260	=cut
		2261
		2262	sub cf::object::send_msg {
		2263	my $pl = shift->contr
		2264	or return;
		2265	$pl->send_msg (@_);
1694	}	2266	}
1695		2267
1696	=item $player_object->may ("access")	2268	=item $player_object->may ("access")
1697		2269
1698	Returns wether the given player is authorized to access resource "access"	2270	Returns wether the given player is authorized to access resource "access"
…		…
1711		2283
1712	=item $player_object->enter_link	2284	=item $player_object->enter_link
1713		2285
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2286	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2287
1716	The player should be reaosnably safe there for short amounts of time. You	2288	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2289	I<MUST> call C<leave_link> as soon as possible, though.
1718		2290
		2291	Will never block.
		2292
1719	=item $player_object->leave_link ($map, $x, $y)	2293	=item $player_object->leave_link ($map, $x, $y)
1720		2294
1721	Moves the player out of the specila link map onto the given map. If the	2295	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2296	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2297	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2298	fails, to the emergency map position.
1725		2299
1726	Might block.	2300	Might block.
1727		2301
1728	=cut	2302	=cut
		2303
		2304	sub link_map {
		2305	unless ($LINK_MAP) {
		2306	$LINK_MAP = cf::map::find "{link}"
		2307	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2308	$LINK_MAP->load;
		2309	}
		2310
		2311	$LINK_MAP
		2312	}
1729		2313
1730	sub cf::object::player::enter_link {	2314	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2315	my ($self) = @_;
1732		2316
1733	$self->deactivate_recursive;	2317	$self->deactivate_recursive;
1734		2318
1735	return if $self->map == $LINK_MAP;	2319	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2320
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2321	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2322	if $self->map && $self->map->{path} ne "{link}";
1739		2323
1740	$self->enter_map ($LINK_MAP, 20, 20);	2324	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2325	}
1742		2326
1743	sub cf::object::player::leave_link {	2327	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2328	my ($self, $map, $x, $y) = @_;
		2329
		2330	return unless $self->contr->active;
1745		2331
1746	my $link_pos = delete $self->{_link_pos};	2332	my $link_pos = delete $self->{_link_pos};
1747		2333
1748	unless ($map) {	2334	unless ($map) {
1749	# restore original map position	2335	# restore original map position
…		…
1767	$map->load;	2353	$map->load;
1768	$map->load_diag;	2354	$map->load_diag;
1769		2355
1770	return unless $self->contr->active;	2356	return unless $self->contr->active;
1771	$self->activate_recursive;	2357	$self->activate_recursive;
		2358
		2359	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2360	$self->enter_map ($map, $x, $y);
1773	}	2361	}
1774		2362
1775	cf::player->attach (	2363	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2364
1779	# abort map switching before logout	2365	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2366	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2367	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2368	the new (success) or old (failed) map position. In either case, $done will
1783	};	2369	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2370
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2371	=cut
		2372
		2373	our $GOTOGEN;
1810		2374
1811	sub cf::object::player::goto {	2375	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2376	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2377
1814	$path = new cf::path $path;	2378	# do generation counting so two concurrent goto's will be executed in-order
1815	$path ne "/" or Carp::cluck ("oy");#d#	2379	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2380
1817	$self->enter_link;	2381	$self->enter_link;
1818		2382
1819	(async {	2383	(async {
		2384	my $map = eval {
1820	my $map = cf::map::find $path->as_string;	2385	my $map = cf::map::find $path;
		2386
		2387	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2388	$map = $map->customise_for ($self);
1822		2389	$map = $check->($map) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2390	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2391	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2392	}
1827		2393
		2394	$map
		2395	};
		2396
		2397	if ($@) {
		2398	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2399	LOG llevError | logBacktrace, Carp::longmess $@;
		2400	}
		2401
		2402	if ($gen == $self->{_goto_generation}) {
		2403	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2404	$self->leave_link ($map, $x, $y);
		2405	}
		2406
		2407	$done->() if $done;
1829	})->prio (1);	2408	})->prio (1);
1830	}	2409	}
1831		2410
1832	=item $player_object->enter_exit ($exit_object)	2411	=item $player_object->enter_exit ($exit_object)
1833		2412
…		…
1835		2414
1836	sub parse_random_map_params {	2415	sub parse_random_map_params {
1837	my ($spec) = @_;	2416	my ($spec) = @_;
1838		2417
1839	my $rmp = { # defaults	2418	my $rmp = { # defaults
1840	xsize => 10,	2419	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2420	ysize => (cf::rndm 15, 40),
		2421	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2422	#layout => string,
1842	};	2423	};
1843		2424
1844	for (split /\n/, $spec) {	2425	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2426	my ($k, $v) = split /\s+/, $_, 2;
1846		2427
…		…
1850	$rmp	2431	$rmp
1851	}	2432	}
1852		2433
1853	sub prepare_random_map {	2434	sub prepare_random_map {
1854	my ($exit) = @_;	2435	my ($exit) = @_;
		2436
		2437	my $guard = cf::lock_acquire "exit_prepare:$exit";
1855		2438
1856	# all this does is basically replace the /! path by	2439	# all this does is basically replace the /! path by
1857	# a new random map path (?random/...) with a seed	2440	# a new random map path (?random/...) with a seed
1858	# that depends on the exit object	2441	# that depends on the exit object
1859		2442
1860	my $rmp = parse_random_map_params $exit->msg;	2443	my $rmp = parse_random_map_params $exit->msg;
1861		2444
1862	if ($exit->map) {	2445	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2446	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2447	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2448	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2449	$rmp->{origin_y} = $exit->y;
1867	}	2450	}
1868		2451
1869	$rmp->{random_seed} ||= $exit->random_seed;	2452	$rmp->{random_seed} ||= $exit->random_seed;
1870		2453
1871	my $data = cf::to_json $rmp;	2454	my $data = cf::to_json $rmp;
1872	my $md5 = Digest::MD5::md5_hex $data;	2455	my $md5 = Digest::MD5::md5_hex $data;
		2456	my $meta = "$RANDOMDIR/$md5.meta";
1873		2457
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2458	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2459	aio_write $fh, 0, (length $data), $data, 0;
		2460	undef $fh;
		2461	aio_rename "$meta~", $meta;
1876		2462
1877	$exit->slaying ("?random/$md5");	2463	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2464	$exit->msg (undef);
1879	}	2465	}
1880	}	2466	}
…		…
1882	sub cf::object::player::enter_exit {	2468	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2469	my ($self, $exit) = @_;
1884		2470
1885	return unless $self->type == cf::PLAYER;	2471	return unless $self->type == cf::PLAYER;
1886		2472
		2473	if ($exit->slaying eq "/!") {
		2474	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2475	# the problem is that $exit might not survive long enough
		2476	# so it needs to be done right now, right here
		2477	cf::sync_job { prepare_random_map $exit };
		2478	}
		2479
		2480	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2481	my $hp = $exit->stats->hp;
		2482	my $sp = $exit->stats->sp;
		2483
1887	$self->enter_link;	2484	$self->enter_link;
		2485
		2486	# if exit is damned, update players death & WoR home-position
		2487	$self->contr->savebed ($slaying, $hp, $sp)
		2488	if $exit->flag (FLAG_DAMNED);
1888		2489
1889	(async {	2490	(async {
1890	$self->deactivate_recursive; # just to be sure	2491	$self->deactivate_recursive; # just to be sure
1891	unless (eval {	2492	unless (eval {
1892	prepare_random_map $exit	2493	$self->goto ($slaying, $hp, $sp);
1893	if $exit->slaying eq "/!";
1894
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1897		2494
1898	1;	2495	1;
1899	}) {	2496	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2497	$self->message ("Something went wrong deep within the crossfire server. "
1901	. "I'll try to bring you back to the map you were before. "	2498	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2499	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2500	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2501
1905	warn "ERROR in enter_exit: $@";	2502	warn "ERROR in enter_exit: $@";
1906	$self->leave_link;	2503	$self->leave_link;
1907	}	2504	}
1908	})->prio (1);	2505	})->prio (1);
…		…
1921		2518
1922	sub cf::client::send_drawinfo {	2519	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2520	my ($self, $text, $flags) = @_;
1924		2521
1925	utf8::encode $text;	2522	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2523	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2524	}
1928		2525
		2526	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2527
		2528	Send a drawinfo or msg packet to the client, formatting the msg for the
		2529	client if neccessary. C<$type> should be a string identifying the type of
		2530	the message, with C<log> being the default. If C<$color> is negative, suppress
		2531	the message unless the client supports the msg packet.
		2532
		2533	=cut
		2534
		2535	sub cf::client::send_msg {
		2536	my ($self, $channel, $msg, $color, @extra) = @_;
		2537
		2538	$msg = $self->pl->expand_cfpod ($msg);
		2539
		2540	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2541
		2542	if (ref $channel) {
		2543	# send meta info to client, if not yet sent
		2544	unless (exists $self->{channel}{$channel->{id}}) {
		2545	$self->{channel}{$channel->{id}} = $channel;
		2546	$self->ext_msg (channel_info => $channel);
		2547	}
		2548
		2549	$channel = $channel->{id};
		2550	}
		2551
		2552	return unless @extra || length $msg;
		2553
		2554	if ($self->can_msg) {
		2555	# default colour, mask it out
		2556	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2557	if $color & cf::NDI_DEF;
		2558
		2559	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2560	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2561	} else {
		2562	if ($color >= 0) {
		2563	# replace some tags by gcfclient-compatible ones
		2564	for ($msg) {
		2565	1 while
		2566	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2567	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2568	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2569	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2570	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2571	}
		2572
		2573	$color &= cf::NDI_COLOR_MASK;
		2574
		2575	utf8::encode $msg;
		2576
		2577	if (0 && $msg =~ /\[/) {
		2578	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2579	} else {
		2580	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2581	$self->send_packet ("drawinfo $color $msg")
		2582	}
		2583	}
		2584	}
		2585	}
		2586
		2587	=item $client->ext_msg ($type, @msg)
		2588
		2589	Sends an ext event to the client.
		2590
		2591	=cut
		2592
		2593	sub cf::client::ext_msg($$@) {
		2594	my ($self, $type, @msg) = @_;
		2595
		2596	my $extcmd = $self->extcmd;
		2597
		2598	if ($extcmd == 2) {
		2599	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2600	} elsif ($extcmd == 1) { # TODO: remove
		2601	push @msg, msgtype => "event_$type";
		2602	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2603	}
		2604	}
1929		2605
1930	=item $success = $client->query ($flags, "text", \&cb)	2606	=item $success = $client->query ($flags, "text", \&cb)
1931		2607
1932	Queues a query to the client, calling the given callback with	2608	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2609	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2610	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		2611
1936	Queries can fail, so check the return code. Or don't, as queries will become	2612	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	2613	become reliable at some point in the future.
1938		2614
1939	=cut	2615	=cut
1940		2616
1941	sub cf::client::query {	2617	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	2618	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	2626	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2627	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		2628
1953	$self->send_packet ($self->{query_queue}[0][0])	2629	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	2630	if @{ $self->{query_queue} } == 1;
		2631
		2632	1
1955	}	2633	}
1956		2634
1957	cf::client->attach (	2635	cf::client->attach (
		2636	on_connect => sub {
		2637	my ($ns) = @_;
		2638
		2639	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2640	},
1958	on_reply => sub {	2641	on_reply => sub {
1959	my ($ns, $msg) = @_;	2642	my ($ns, $msg) = @_;
1960		2643
1961	# this weird shuffling is so that direct followup queries	2644	# this weird shuffling is so that direct followup queries
1962	# get handled first	2645	# get handled first
1963	my $queue = delete $ns->{query_queue}	2646	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	2647	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		2648
1966	(shift @$queue)->[1]->($msg);	2649	(shift @$queue)->[1]->($msg);
		2650	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		2651
1968	push @{ $ns->{query_queue} }, @$queue;	2652	push @{ $ns->{query_queue} }, @$queue;
1969		2653
1970	if (@{ $ns->{query_queue} } == @$queue) {	2654	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	2655	if (@$queue) {
…		…
1973	} else {	2657	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2658	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	2659	}
1976	}	2660	}
1977	},	2661	},
		2662	on_exticmd => sub {
		2663	my ($ns, $buf) = @_;
		2664
		2665	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2666
		2667	if (ref $msg) {
		2668	my ($type, $reply, @payload) =
		2669	"ARRAY" eq ref $msg
		2670	? @$msg
		2671	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2672
		2673	if (my $cb = $EXTICMD{$type}) {
		2674	my @reply = $cb->($ns, @payload);
		2675
		2676	$ns->ext_reply ($reply, @reply)
		2677	if $reply;
		2678	}
		2679	} else {
		2680	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2681	}
		2682
		2683	cf::override;
		2684	},
1978	);	2685	);
1979		2686
1980	=item $client->async (\&cb)	2687	=item $client->async (\&cb)
1981		2688
1982	Create a new coroutine, running the specified callback. The coroutine will	2689	Create a new coroutine, running the specified callback. The coroutine will
…		…
2023	our $safe = new Safe "safe";	2730	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	2731	our $safe_hole = new Safe::Hole;
2025		2732
2026	$SIG{FPE} = 'IGNORE';	2733	$SIG{FPE} = 'IGNORE';
2027		2734
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2735	$safe->permit_only (Opcode::opset qw(
		2736	:base_core :base_mem :base_orig :base_math
		2737	grepstart grepwhile mapstart mapwhile
		2738	sort time
		2739	));
2029		2740
2030	# here we export the classes and methods available to script code	2741	# here we export the classes and methods available to script code
2031		2742
2032	=pod	2743	=pod
2033		2744
2034	The following fucntions and emthods are available within a safe environment:	2745	The following functions and methods are available within a safe environment:
2035		2746
2036	cf::object contr pay_amount pay_player map	2747	cf::object
		2748	contr pay_amount pay_player map x y force_find force_add
		2749	insert remove
		2750
2037	cf::object::player player	2751	cf::object::player
2038	cf::player peaceful	2752	player
2039	cf::map trigger	2753
		2754	cf::player
		2755	peaceful
		2756
		2757	cf::map
		2758	trigger
2040		2759
2041	=cut	2760	=cut
2042		2761
2043	for (	2762	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	2763	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2764	insert remove inv)],
2045	["cf::object::player" => qw(player)],	2765	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	2766	["cf::player" => qw(peaceful)],
2047	["cf::map" => qw(trigger)],	2767	["cf::map" => qw(trigger)],
2048	) {	2768	) {
2049	no strict 'refs';	2769	no strict 'refs';
…		…
2120	=back	2840	=back
2121		2841
2122	=cut	2842	=cut
2123		2843
2124	#############################################################################	2844	#############################################################################
		2845	# the server's init and main functions
2125		2846
2126	=head2 EXTENSION DATABASE SUPPORT	2847	sub load_facedata($) {
		2848	my ($path) = @_;
2127		2849
2128	Crossfire maintains a very simple database for extension use. It can	2850	warn "loading facedata from $path\n";
2129	currently store anything that can be serialised using Storable, which
2130	excludes objects.
2131		2851
2132	The parameter C<$family> should best start with the name of the extension	2852	my $facedata;
2133	using it, it should be unique.	2853	0 < aio_load $path, $facedata
		2854	or die "$path: $!";
2134		2855
2135	=over 4	2856	$facedata = Coro::Storable::thaw $facedata;
2136		2857
2137	=item $hashref = cf::db_get $family	2858	$facedata->{version} == 2
		2859	or cf::cleanup "$path: version mismatch, cannot proceed.";
2138		2860
2139	Return a hashref for use by the extension C<$family>, which can be
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142
2143	=item $value = cf::db_get $family => $key
2144
2145	Returns a single value from the database
2146
2147	=item cf::db_put $family => $hashref
2148
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}	2861	{
		2862	my $faces = $facedata->{faceinfo};
2175		2863
2176	my $pid;	2864	while (my ($face, $info) = each %$faces) {
		2865	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2866	cf::face::set_visibility $idx, $info->{visibility};
		2867	cf::face::set_magicmap $idx, $info->{magicmap};
		2868	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2869	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2177		2870
2178	sub db_save() {	2871	cf::cede_to_tick;
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});
2198
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}
2203
2204	sub db_get($;$) {
2205	@_ >= 2
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209
2210	sub db_put($$;$) {
2211	if (@_ >= 3) {
2212	$DB->{$_[0]}{$_[1]} = $_[2];
2213	} else {
2214	$DB->{$_[0]} = $_[1];
2215	}
2216	db_dirty;
2217	}
2218
2219	cf::global->attach (
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	2872	}
2224	);
2225	}
2226		2873
2227	#############################################################################	2874	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	2875	next unless $info->{smooth};
		2876	my $idx = cf::face::find $face
		2877	or next;
		2878	if (my $smooth = cf::face::find $info->{smooth}) {
		2879	cf::face::set_smooth $idx, $smooth;
		2880	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2881	} else {
		2882	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2883	}
		2884
		2885	cf::cede_to_tick;
		2886	}
		2887	}
		2888
		2889	{
		2890	my $anims = $facedata->{animinfo};
		2891
		2892	while (my ($anim, $info) = each %$anims) {
		2893	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2894	cf::cede_to_tick;
		2895	}
		2896
		2897	cf::anim::invalidate_all; # d'oh
		2898	}
		2899
		2900	{
		2901	# TODO: for gcfclient pleasure, we should give resources
		2902	# that gcfclient doesn't grok a >10000 face index.
		2903	my $res = $facedata->{resource};
		2904	my $enc = JSON::XS->new->utf8->canonical;
		2905
		2906	my $soundconf = delete $res->{"res/sound.conf"};
		2907
		2908	while (my ($name, $info) = each %$res) {
		2909	my $meta = $enc->encode ({
		2910	name => $name,
		2911	%{ $info->{meta} || {} },
		2912	});
		2913
		2914	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2915
		2916	if ($info->{type} & 1) {
		2917	# prepend meta info
		2918
		2919	my $data = pack "(w/a*)*", $meta, $info->{data};
		2920	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2921
		2922	cf::face::set_data $idx, 0, $data, $chk;
		2923	} else {
		2924	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2925	}
		2926
		2927	cf::face::set_type $idx, $info->{type};
		2928
		2929	cf::cede_to_tick;
		2930	}
		2931
		2932	if ($soundconf) {
		2933	$soundconf = $enc->decode (delete $soundconf->{data});
		2934
		2935	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2936	my $sound = $soundconf->{compat}[$_]
		2937	or next;
		2938
		2939	my $face = cf::face::find "sound/$sound->[1]";
		2940	cf::sound::set $sound->[0] => $face;
		2941	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2942	}
		2943
		2944	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2945	my $face = cf::face::find "sound/$v";
		2946	cf::sound::set $k => $face;
		2947	}
		2948	}
		2949	}
		2950
		2951	1
		2952	}
		2953
		2954	register_exticmd fx_want => sub {
		2955	my ($ns, $want) = @_;
		2956
		2957	while (my ($k, $v) = each %$want) {
		2958	$ns->fx_want ($k, $v);
		2959	}
		2960	};
		2961
		2962	sub reload_regions {
		2963	load_resource_file "$MAPDIR/regions"
		2964	or die "unable to load regions file\n";
		2965
		2966	for (cf::region::list) {
		2967	$_->{match} = qr/$_->{match}/
		2968	if exists $_->{match};
		2969	}
		2970	}
		2971
		2972	sub reload_facedata {
		2973	load_facedata "$DATADIR/facedata"
		2974	or die "unable to load facedata\n";
		2975	}
		2976
		2977	sub reload_archetypes {
		2978	load_resource_file "$DATADIR/archetypes"
		2979	or die "unable to load archetypes\n";
		2980	#d# NEED to laod twice to resolve forward references
		2981	# this really needs to be done in an extra post-pass
		2982	# (which needs to be synchronous, so solve it differently)
		2983	load_resource_file "$DATADIR/archetypes"
		2984	or die "unable to load archetypes\n";
		2985	}
		2986
		2987	sub reload_treasures {
		2988	load_resource_file "$DATADIR/treasures"
		2989	or die "unable to load treasurelists\n";
		2990	}
		2991
		2992	sub reload_resources {
		2993	warn "reloading resource files...\n";
		2994
		2995	reload_regions;
		2996	reload_facedata;
		2997	#reload_archetypes;#d#
		2998	reload_archetypes;
		2999	reload_treasures;
		3000
		3001	warn "finished reloading resource files\n";
		3002	}
		3003
		3004	sub init {
		3005	reload_resources;
		3006	}
2229		3007
2230	sub cfg_load {	3008	sub cfg_load {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3009	open my $fh, "<:utf8", "$CONFDIR/config"
2232	or return;	3010	or return;
2233		3011
2234	local $/;	3012	local $/;
2235	*CFG = YAML::Syck::Load <$fh>;	3013	*CFG = YAML::Syck::Load <$fh>;
2236		3014
…		…
2250		3028
2251	sub main {	3029	sub main {
2252	# we must not ever block the main coroutine	3030	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3031	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3032	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3033	(async {
2255	async { Event::one_event };	3034	Event::one_event;
		3035	})->prio (Coro::PRIO_MAX);
2256	};	3036	};
2257		3037
2258	cfg_load;	3038	cfg_load;
2259	db_load;	3039	db_init;
2260	load_extensions;	3040	load_extensions;
		3041
		3042	$TICK_WATCHER->start;
2261	Event::loop;	3043	Event::loop;
2262	}	3044	}
2263		3045
2264	#############################################################################	3046	#############################################################################
2265	# initialisation and cleanup	3047	# initialisation and cleanup
2266		3048
2267	# install some emergency cleanup handlers	3049	# install some emergency cleanup handlers
2268	BEGIN {	3050	BEGIN {
2269	for my $signal (qw(INT HUP TERM)) {	3051	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3052	Event->signal (
		3053	reentrant => 0,
2271	data => WF_AUTOCANCEL,	3054	data => WF_AUTOCANCEL,
2272	signal => $signal,	3055	signal => $signal,
		3056	prio => 0,
2273	cb => sub {	3057	cb => sub {
2274	cf::cleanup "SIG$signal";	3058	cf::cleanup "SIG$signal";
2275	},	3059	},
2276	);	3060	);
2277	}	3061	}
2278	}	3062	}
2279		3063
		3064	sub write_runtime {
		3065	my $runtime = "$LOCALDIR/runtime";
		3066
		3067	# first touch the runtime file to show we are still running:
		3068	# the fsync below can take a very very long time.
		3069
		3070	IO::AIO::aio_utime $runtime, undef, undef;
		3071
		3072	my $guard = cf::lock_acquire "write_runtime";
		3073
		3074	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3075	or return;
		3076
		3077	my $value = $cf::RUNTIME + 90 + 10;
		3078	# 10 is the runtime save interval, for a monotonic clock
		3079	# 60 allows for the watchdog to kill the server.
		3080
		3081	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3082	and return;
		3083
		3084	# always fsync - this file is important
		3085	aio_fsync $fh
		3086	and return;
		3087
		3088	# touch it again to show we are up-to-date
		3089	aio_utime $fh, undef, undef;
		3090
		3091	close $fh
		3092	or return;
		3093
		3094	aio_rename "$runtime~", $runtime
		3095	and return;
		3096
		3097	warn "runtime file written.\n";
		3098
		3099	1
		3100	}
		3101
2280	sub emergency_save() {	3102	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3103	my $freeze_guard = cf::freeze_mainloop;
2282		3104
2283	warn "enter emergency perl save\n";	3105	warn "enter emergency perl save\n";
2284		3106
2285	cf::sync_job {	3107	cf::sync_job {
2286	# use a peculiar iteration method to avoid tripping on perl	3108	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3109	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3110	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3111	warn "begin emergency player save\n";
2290	for my $login (keys %cf::PLAYER) {	3112	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3113	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3114	$pl->valid or next;
2293	$pl->save;	3115	$pl->save;
…		…
2299	my $map = $cf::MAP{$path} or next;	3121	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3122	$map->valid or next;
2301	$map->save;	3123	$map->save;
2302	}	3124	}
2303	warn "end emergency map save\n";	3125	warn "end emergency map save\n";
		3126
		3127	warn "begin emergency database checkpoint\n";
		3128	BDB::db_env_txn_checkpoint $DB_ENV;
		3129	warn "end emergency database checkpoint\n";
2304	};	3130	};
2305		3131
2306	warn "leave emergency perl save\n";	3132	warn "leave emergency perl save\n";
2307	}	3133	}
2308		3134
		3135	sub post_cleanup {
		3136	my ($make_core) = @_;
		3137
		3138	warn Carp::longmess "post_cleanup backtrace"
		3139	if $make_core;
		3140	}
		3141
2309	sub reload() {	3142	sub do_reload_perl() {
2310	# can/must only be called in main	3143	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3144	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine\n";	3145	warn "can only reload from main coroutine";
2313	return;	3146	return;
2314	}	3147	}
2315		3148
2316	warn "reloading...";	3149	warn "reloading...";
2317		3150
2318	my $guard = freeze_mainloop;	3151	warn "entering sync_job";
		3152
		3153	cf::sync_job {
		3154	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3155	cf::emergency_save;
		3156	cf::write_runtime; # external watchdog should not bark
2320		3157
2321	eval {	3158	warn "syncing database to disk";
		3159	BDB::db_env_txn_checkpoint $DB_ENV;
		3160
2322	# if anything goes wrong in here, we should simply crash as we already saved	3161	# if anything goes wrong in here, we should simply crash as we already saved
2323		3162
2324	# cancel all watchers	3163	warn "cancelling all WF_AUTOCANCEL watchers";
2325	for (Event::all_watchers) {	3164	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;	3165	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}	3166	}
2328		3167
		3168	warn "flushing outstanding aio requests";
		3169	for (;;) {
		3170	BDB::flush;
		3171	IO::AIO::flush;
		3172	Coro::cede;
		3173	last unless IO::AIO::nreqs || BDB::nreqs;
		3174	warn "iterate...";
		3175	}
		3176
		3177	++$RELOAD;
		3178
2329	# cancel all extension coros	3179	warn "cancelling all extension coros";
2330	$_->cancel for values %EXT_CORO;	3180	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3181	%EXT_CORO = ();
2332		3182
2333	# unload all extensions	3183	warn "removing commands";
2334	for (@exts) {	3184	%COMMAND = ();
		3185
		3186	warn "removing ext/exti commands";
		3187	%EXTCMD = ();
		3188	%EXTICMD = ();
		3189
		3190	warn "unloading/nuking all extensions";
		3191	for my $pkg (@EXTS) {
2335	warn "unloading <$_>";	3192	warn "... unloading $pkg";
2336	unload_extension $_;	3193
		3194	if (my $cb = $pkg->can ("unload")) {
		3195	eval {
		3196	$cb->($pkg);
		3197	1
		3198	} or warn "$pkg unloaded, but with errors: $@";
2337	}	3199	}
2338		3200
		3201	warn "... nuking $pkg";
		3202	Symbol::delete_package $pkg;
		3203	}
		3204
2339	# unload all modules loaded from $LIBDIR	3205	warn "unloading all perl modules loaded from $LIBDIR";
2340	while (my ($k, $v) = each %INC) {	3206	while (my ($k, $v) = each %INC) {
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3207	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342		3208
2343	warn "removing <$k>";	3209	warn "... unloading $k";
2344	delete $INC{$k};	3210	delete $INC{$k};
2345		3211
2346	$k =~ s/\.pm$//;	3212	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;	3213	$k =~ s/\//::/g;
2348		3214
…		…
2351	}	3217	}
2352		3218
2353	Symbol::delete_package $k;	3219	Symbol::delete_package $k;
2354	}	3220	}
2355		3221
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	3222	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3223	Symbol::delete_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3224	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3225
2364	# remove register_script_function callbacks
2365	# TODO
2366
2367	# unload cf.pm "a bit"	3226	warn "unloading cf.pm \"a bit\"";
2368	delete $INC{"cf.pm"};	3227	delete $INC{"cf.pm"};
		3228	delete $INC{"cf/pod.pm"};
2369		3229
2370	# don't, removes xs symbols, too,	3230	# don't, removes xs symbols, too,
2371	# and global variables created in xs	3231	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	3232	#Symbol::delete_package __PACKAGE__;
2373		3233
2374	# reload cf.pm	3234	warn "unload completed, starting to reload now";
		3235
2375	warn "reloading cf.pm";	3236	warn "reloading cf.pm";
2376	require cf;	3237	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3238	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2378		3239
2379	# load config and database again	3240	warn "loading config and database again";
2380	cf::cfg_load;	3241	cf::cfg_load;
2381	cf::db_load;
2382		3242
2383	# load extensions
2384	warn "load extensions";	3243	warn "loading extensions";
2385	cf::load_extensions;	3244	cf::load_extensions;
2386		3245
2387	# reattach attachments to objects	3246	warn "reattaching attachments to objects/players";
2388	warn "reattach";	3247	_global_reattach; # objects, sockets
2389	_global_reattach;	3248	warn "reattaching attachments to maps";
2390	reattach $_ for values %MAP;	3249	reattach $_ for values %MAP;
2391	};	3250	warn "reattaching attachments to players";
		3251	reattach $_ for values %PLAYER;
2392		3252
2393	if ($@) {	3253	warn "leaving sync_job";
		3254
		3255	1
		3256	} or do {
2394	warn $@;	3257	warn $@;
2395	warn "error while reloading, exiting.";	3258	warn "error while reloading, exiting.";
2396	exit 1;	3259	exit 1;
2397	}	3260	};
2398		3261
2399	warn "reloaded successfully";	3262	warn "reloaded";
2400	};	3263	};
2401		3264
2402	#############################################################################	3265	our $RELOAD_WATCHER; # used only during reload
2403		3266
2404	unless ($LINK_MAP) {	3267	sub reload_perl() {
2405	$LINK_MAP = cf::map::new;	3268	# doing reload synchronously and two reloads happen back-to-back,
		3269	# coro crashes during coro_state_free->destroy here.
2406		3270
2407	$LINK_MAP->width (41);	3271	$RELOAD_WATCHER ||= Event->timer (
2408	$LINK_MAP->height (41);	3272	reentrant => 0,
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,	3273	after => 0,
		3274	data => WF_AUTOCANCEL,
2417	cb => sub {	3275	cb => sub {
2418	$_[0]->w->cancel;	3276	do_reload_perl;
2419		3277	undef $RELOAD_WATCHER;
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});	3278	},
2438		3279	);
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	3280	}
2444
2445	register "<global>", __PACKAGE__;
2446		3281
2447	register_command "reload" => sub {	3282	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	3283	my ($who, $arg) = @_;
2449		3284
2450	if ($who->flag (FLAG_WIZ)) {	3285	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	3286	$who->message ("reloading server.");
		3287	async { reload_perl };
2454	}	3288	}
2455	};	3289	};
2456		3290
2457	unshift @INC, $LIBDIR;	3291	unshift @INC, $LIBDIR;
2458		3292
		3293	my $bug_warning = 0;
		3294
		3295	our @WAIT_FOR_TICK;
		3296	our @WAIT_FOR_TICK_BEGIN;
		3297
		3298	sub wait_for_tick {
		3299	return unless $TICK_WATCHER->is_active;
		3300	return if $Coro::current == $Coro::main;
		3301
		3302	my $signal = new Coro::Signal;
		3303	push @WAIT_FOR_TICK, $signal;
		3304	$signal->wait;
		3305	}
		3306
		3307	sub wait_for_tick_begin {
		3308	return unless $TICK_WATCHER->is_active;
		3309	return if $Coro::current == $Coro::main;
		3310
		3311	my $signal = new Coro::Signal;
		3312	push @WAIT_FOR_TICK_BEGIN, $signal;
		3313	$signal->wait;
		3314	}
		3315
		3316	my $min = 1e6;#d#
		3317	my $avg = 10;
2459	$TICK_WATCHER = Event->timer (	3318	$TICK_WATCHER = Event->timer (
2460	reentrant => 0,	3319	reentrant => 0,
		3320	parked => 1,
2461	prio => 0,	3321	prio => 0,
2462	at => $NEXT_TICK || $TICK,	3322	at => $NEXT_TICK || $TICK,
2463	data => WF_AUTOCANCEL,	3323	data => WF_AUTOCANCEL,
2464	cb => sub {	3324	cb => sub {
		3325	if ($Coro::current != $Coro::main) {
		3326	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3327	unless ++$bug_warning > 10;
		3328	return;
		3329	}
		3330
		3331	$NOW = $tick_start = Event::time;
		3332
2465	cf::server_tick; # one server iteration	3333	cf::server_tick; # one server iteration
		3334
		3335	0 && sync_job {#d#
		3336	for(1..10) {
		3337	my $t = Event::time;
		3338	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3339	or die;
		3340
		3341	$map->width (50);
		3342	$map->height (50);
		3343	$map->alloc;
		3344	$map->_load_objects ("/tmp/x.map", 1);
		3345	my $t = Event::time - $t;
		3346
		3347	#next unless $t < 0.0013;#d#
		3348	if ($t < $min) {
		3349	$min = $t;
		3350	}
		3351	$avg = $avg * 0.99 + $t * 0.01;
		3352	}
		3353	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3354	exit 0;
		3355	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3356	};
		3357
2466	$RUNTIME += $TICK;	3358	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;	3359	$NEXT_TICK += $TICK;
2468		3360
2469	$WAIT_FOR_TICK->broadcast;	3361	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3362	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3363	Coro::async_pool {
		3364	write_runtime
		3365	or warn "ERROR: unable to write runtime file: $!";
		3366	};
		3367	}
		3368
		3369	# my $AFTER = Event::time;
		3370	# warn $AFTER - $NOW;#d#
		3371
		3372	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3373	$sig->send;
		3374	}
		3375	while (my $sig = shift @WAIT_FOR_TICK) {
		3376	$sig->send;
		3377	}
		3378
		3379	$NOW = Event::time;
2471		3380
2472	# if we are delayed by four ticks or more, skip them all	3381	# if we are delayed by four ticks or more, skip them all
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3382	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2474		3383
2475	$TICK_WATCHER->at ($NEXT_TICK);	3384	$TICK_WATCHER->at ($NEXT_TICK);
2476	$TICK_WATCHER->start;	3385	$TICK_WATCHER->start;
		3386
		3387	$LOAD = ($NOW - $tick_start) / $TICK;
		3388	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3389
		3390	_post_tick;
		3391
		3392
2477	},	3393	},
2478	);	3394	);
2479		3395
		3396	{
2480	IO::AIO::max_poll_time $TICK * 0.2;	3397	BDB::max_poll_time $TICK * 0.1;
2481		3398	$BDB_POLL_WATCHER = Event->io (
2482	Event->io (	3399	reentrant => 0,
2483	fd => IO::AIO::poll_fileno,	3400	fd => BDB::poll_fileno,
2484	poll => 'r',	3401	poll => 'r',
2485	prio => 5,	3402	prio => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,	3403	data => WF_AUTOCANCEL,
2492	after => 0,	3404	cb => \&BDB::poll_cb,
2493	interval => 10,	3405	);
2494	cb => sub {	3406	BDB::min_parallel 8;
2495	(Coro::unblock_sub {	3407
2496	write_runtime	3408	BDB::set_sync_prepare {
2497	or warn "ERROR: unable to write runtime file: $!";	3409	my $status;
		3410	my $current = $Coro::current;
		3411	(
		3412	sub {
		3413	$status = $!;
		3414	$current->ready; undef $current;
		3415	},
		3416	sub {
		3417	Coro::schedule while defined $current;
		3418	$! = $status;
		3419	},
		3420	)
		3421	};
		3422
		3423	unless ($DB_ENV) {
		3424	$DB_ENV = BDB::db_env_create;
		3425
		3426	cf::sync_job {
		3427	eval {
		3428	BDB::db_env_open
		3429	$DB_ENV,
		3430	$BDBDIR,
		3431	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3432	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3433	0666;
		3434
		3435	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3436
		3437	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3438	$DB_ENV->set_lk_detect;
		3439	};
		3440
		3441	cf::cleanup "db_env_open(db): $@" if $@;
2498	})->();	3442	};
2499	},	3443	}
2500	);	3444	}
		3445
		3446	{
		3447	IO::AIO::min_parallel 8;
		3448
		3449	undef $Coro::AIO::WATCHER;
		3450	IO::AIO::max_poll_time $TICK * 0.1;
		3451	$AIO_POLL_WATCHER = Event->io (
		3452	reentrant => 0,
		3453	data => WF_AUTOCANCEL,
		3454	fd => IO::AIO::poll_fileno,
		3455	poll => 'r',
		3456	prio => 6,
		3457	cb => \&IO::AIO::poll_cb,
		3458	);
		3459	}
		3460
		3461	my $_log_backtrace;
		3462
		3463	sub _log_backtrace {
		3464	my ($msg, @addr) = @_;
		3465
		3466	$msg =~ s/\n//;
		3467
		3468	# limit the # of concurrent backtraces
		3469	if ($_log_backtrace < 2) {
		3470	++$_log_backtrace;
		3471	async {
		3472	my @bt = fork_call {
		3473	@addr = map { sprintf "%x", $_ } @addr;
		3474	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3475	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3476	or die "addr2line: $!";
		3477
		3478	my @funcs;
		3479	my @res = <$fh>;
		3480	chomp for @res;
		3481	while (@res) {
		3482	my ($func, $line) = splice @res, 0, 2, ();
		3483	push @funcs, "[$func] $line";
		3484	}
		3485
		3486	@funcs
		3487	};
		3488
		3489	LOG llevInfo, "[ABT] $msg\n";
		3490	LOG llevInfo, "[ABT] $_\n" for @bt;
		3491	--$_log_backtrace;
		3492	};
		3493	} else {
		3494	LOG llevInfo, "[ABT] $msg\n";
		3495	LOG llevInfo, "[ABT] [suppressed]\n";
		3496	}
		3497	}
		3498
		3499	# load additional modules
		3500	use cf::pod;
2501		3501
2502	END { cf::emergency_save }	3502	END { cf::emergency_save }
2503		3503
2504	1	3504	1
2505		3505

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