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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.314 by root, Mon Jul 23 16:53:15 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]
		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	Useful for short background jobs.
		334
		335	=cut
		336
		337	our @SLOT_QUEUE;
		338	our $SLOT_QUEUE;
		339
		340	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		341	$SLOT_QUEUE = Coro::async {
		342	my $signal = new Coro::Signal;
		343
		344	while () {
		345	next_job:
		346	my $avail = cf::till_tick;
		347	if ($avail > 0.01) {
		348	for (0 .. $#SLOT_QUEUE) {
		349	if ($SLOT_QUEUE[$_][0] < $avail) {
		350	my $job = splice @SLOT_QUEUE, $_, 1, ();
		351	$job->[2]->send;
		352	Coro::cede;
		353	goto next_job;
		354	}
		355	}
		356	}
		357
		358	if (@SLOT_QUEUE) {
		359	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		360	push @cf::WAIT_FOR_TICK, $signal;
		361	$signal->wait;
		362	} else {
		363	Coro::schedule;
		364	}
		365	}
		366	};
		367
		368	sub get_slot($;$) {
		369	my ($time, $pri) = @_;
		370
		371	push @SLOT_QUEUE, [$time, $pri, my $sig = new Coro::Signal];
		372	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		373	$SLOT_QUEUE->ready;
		374	$sig->wait;
265	}	375	}
266		376
267	=item cf::async { BLOCK }	377	=item cf::async { BLOCK }
268		378
269	Currently the same as Coro::async_pool, meaning you cannot use	379	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		384
275	BEGIN { *async = \&Coro::async_pool }	385	BEGIN { *async = \&Coro::async_pool }
276		386
277	=item cf::sync_job { BLOCK }	387	=item cf::sync_job { BLOCK }
278		388
279	The design of crossfire+ requires that the main coro ($Coro::main) is	389	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	390	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	391	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		392	acceptable.
282		393
283	If it must be done, put the blocking parts into C<sync_job>. This will run	394	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	395	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	396	server will be frozen during this time, so the block should either finish
286	fast or be very important.	397	fast or be very important.
…		…
289		400
290	sub sync_job(&) {	401	sub sync_job(&) {
291	my ($job) = @_;	402	my ($job) = @_;
292		403
293	if ($Coro::current == $Coro::main) {	404	if ($Coro::current == $Coro::main) {
		405	my $time = Event::time;
		406
294	# this is the main coro, too bad, we have to block	407	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	408	# till the operation succeeds, freezing the server :/
296		409
297	# TODO: use suspend/resume instead	410	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	411	# (but this is cancel-safe)
…		…
309		422
310	while ($busy) {	423	while ($busy) {
311	Coro::cede or Event::one_event;	424	Coro::cede or Event::one_event;
312	}	425	}
313		426
		427	$time = Event::time - $time;
		428
		429	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		430	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		431
		432	$tick_start += $time; # do not account sync jobs to server load
		433
314	wantarray ? @res : $res[0]	434	wantarray ? @res : $res[0]
315	} else {	435	} else {
316	# we are in another coroutine, how wonderful, everything just works	436	# we are in another coroutine, how wonderful, everything just works
317		437
318	$job->()	438	$job->()
319	}	439	}
320	}	440	}
321		441
322	=item $coro = cf::async_ext { BLOCK }	442	=item $coro = cf::async_ext { BLOCK }
323		443
324	Like async, but this coro is automcatially being canceled when the	444	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	445	extension calling this is being unloaded.
326		446
327	=cut	447	=cut
328		448
329	sub async_ext(&) {	449	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	457	$EXT_CORO{$coro+0} = $coro;
338		458
339	$coro	459	$coro
340	}	460	}
341		461
342	sub write_runtime {	462	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		463
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	464	Executes the given code block with the given arguments in a seperate
346	or return;	465	process, returning the results. Everything must be serialisable with
		466	Coro::Storable. May, of course, block. Note that the executed sub may
		467	never block itself or use any form of Event handling.
347		468
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	469	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		470
352	aio_fsync $fh	471	sub _store_scalar {
353	and return;	472	open my $fh, ">", \my $buf
354		473	or die "fork_call: cannot open fh-to-buf in child : $!";
		474	Storable::store_fd $_[0], $fh;
355	close $fh	475	close $fh;
356	or return;
357		476
358	aio_rename "$runtime~", $runtime	477	$buf
359	and return;	478	}
360		479
		480	sub fork_call(&@) {
		481	my ($cb, @args) = @_;
		482
		483	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		484	# or die "socketpair: $!";
		485	pipe my $fh1, my $fh2
		486	or die "pipe: $!";
		487
		488	if (my $pid = fork) {
		489	close $fh2;
		490
		491	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		492	warn "pst<$res>" unless $res =~ /^pst/;
		493	$res = Coro::Storable::thaw $res;
		494
		495	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		496
		497	Carp::confess $$res unless "ARRAY" eq ref $res;
		498
		499	return wantarray ? @$res : $res->[-1];
		500	} else {
		501	reset_signals;
		502	local $SIG{__WARN__};
		503	local $SIG{__DIE__};
		504	# just in case, this hack effectively disables event
		505	# in the child. cleaner and slower would be canceling all watchers,
		506	# but this works for the time being.
		507	local $Coro::idle;
		508	$Coro::current->prio (Coro::PRIO_MAX);
		509
		510	eval {
		511	close $fh1;
		512
		513	my @res = eval { $cb->(@args) };
		514
		515	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		516	close $fh2;
		517	};
		518
		519	warn $@ if $@;
		520	_exit 0;
361	1	521	}
		522	}
		523
		524	=item $value = cf::db_get $family => $key
		525
		526	Returns a single value from the environment database.
		527
		528	=item cf::db_put $family => $key => $value
		529
		530	Stores the given C<$value> in the family. It can currently store binary
		531	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		532
		533	=cut
		534
		535	our $DB;
		536
		537	sub db_init {
		538	unless ($DB) {
		539	$DB = BDB::db_create $DB_ENV;
		540
		541	cf::sync_job {
		542	eval {
		543	$DB->set_flags (BDB::CHKSUM);
		544
		545	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		546	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		547	cf::cleanup "db_open(db): $!" if $!;
		548	};
		549	cf::cleanup "db_open(db): $@" if $@;
		550	};
		551	}
		552	}
		553
		554	sub db_get($$) {
		555	my $key = "$_[0]/$_[1]";
		556
		557	cf::sync_job {
		558	BDB::db_get $DB, undef, $key, my $data;
		559
		560	$! ? ()
		561	: $data
		562	}
		563	}
		564
		565	sub db_put($$$) {
		566	BDB::dbreq_pri 4;
		567	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		568	}
		569
		570	=item cf::cache $id => [$paths...], $processversion => $process
		571
		572	Generic caching function that returns the value of the resource $id,
		573	caching and regenerating as required.
		574
		575	This function can block.
		576
		577	=cut
		578
		579	sub cache {
		580	my ($id, $src, $processversion, $process) = @_;
		581
		582	my $meta =
		583	join "\x00",
		584	$processversion,
		585	map {
		586	aio_stat $_
		587	and Carp::croak "$_: $!";
		588
		589	($_, (stat _)[7,9])
		590	} @$src;
		591
		592	my $dbmeta = db_get cache => "$id/meta";
		593	if ($dbmeta ne $meta) {
		594	# changed, we may need to process
		595
		596	my @data;
		597	my $md5;
		598
		599	for (0 .. $#$src) {
		600	0 <= aio_load $src->[$_], $data[$_]
		601	or Carp::croak "$src->[$_]: $!";
		602	}
		603
		604	# if processing is expensive, check
		605	# checksum first
		606	if (1) {
		607	$md5 =
		608	join "\x00",
		609	$processversion,
		610	map {
		611	Coro::cede;
		612	($src->[$_], Digest::MD5::md5_hex $data[$_])
		613	} 0.. $#$src;
		614
		615
		616	my $dbmd5 = db_get cache => "$id/md5";
		617	if ($dbmd5 eq $md5) {
		618	db_put cache => "$id/meta", $meta;
		619
		620	return db_get cache => "$id/data";
		621	}
		622	}
		623
		624	my $t1 = Time::HiRes::time;
		625	my $data = $process->(\@data);
		626	my $t2 = Time::HiRes::time;
		627
		628	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		629
		630	db_put cache => "$id/data", $data;
		631	db_put cache => "$id/md5" , $md5;
		632	db_put cache => "$id/meta", $meta;
		633
		634	return $data;
		635	}
		636
		637	db_get cache => "$id/data"
		638	}
		639
		640	=item cf::datalog type => key => value, ...
		641
		642	Log a datalog packet of the given type with the given key-value pairs.
		643
		644	=cut
		645
		646	sub datalog($@) {
		647	my ($type, %kv) = @_;
		648	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	649	}
363		650
364	=back	651	=back
365		652
366	=cut	653	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494		654
495	#############################################################################	655	#############################################################################
496		656
497	=head2 ATTACHABLE OBJECTS	657	=head2 ATTACHABLE OBJECTS
498		658
…		…
500	attach callbacks/event handlers (a collection of which is called an "attachment")	660	attach callbacks/event handlers (a collection of which is called an "attachment")
501	to it. All such attachable objects support the following methods.	661	to it. All such attachable objects support the following methods.
502		662
503	In the following description, CLASS can be any of C<global>, C<object>	663	In the following description, CLASS can be any of C<global>, C<object>
504	C<player>, C<client> or C<map> (i.e. the attachable objects in	664	C<player>, C<client> or C<map> (i.e. the attachable objects in
505	crossfire+).	665	Crossfire TRT).
506		666
507	=over 4	667	=over 4
508		668
509	=item $attachable->attach ($attachment, key => $value...)	669	=item $attachable->attach ($attachment, key => $value...)
510		670
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	784	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	785	our @CB_MAP = ();
626		786
627	my %attachment;	787	my %attachment;
628		788
		789	sub cf::attachable::thawer_merge {
		790	# simply override everything except _meta
		791	local $_[0]{_meta};
		792	%{$_[0]} = %{$_[1]};
		793	}
		794
629	sub _attach_cb($$$$) {	795	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	796	my ($registry, $event, $prio, $cb) = @_;
631		797
632	use sort 'stable';	798	use sort 'stable';
633		799
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	833	$registry = $CB_TYPE[$object_type] ||= [];
668		834
669	} elsif ($type eq "subtype") {	835	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	836	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	837	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	838	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		839
674	} elsif ($type eq "package") {	840	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	841	my $pkg = shift @arg;
676		842
677	while (my ($name, $id) = each %cb_id) {	843	while (my ($name, $id) = each %cb_id) {
…		…
706	_attach $registry, $klass, @attach;	872	_attach $registry, $klass, @attach;
707	}	873	}
708		874
709	$obj->{$name} = \%arg;	875	$obj->{$name} = \%arg;
710	} else {	876	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	877	warn "object uses attachment '$name' which is not available, postponing.\n";
712	}	878	}
713		879
714	$obj->{_attachment}{$name} = undef;	880	$obj->{_attachment}{$name} = undef;
715	}	881	}
716		882
…		…
718	if (ref $_[0]) {	884	if (ref $_[0]) {
719	_object_attach @_;	885	_object_attach @_;
720	} else {	886	} else {
721	_attach shift->_attach_registry, @_;	887	_attach shift->_attach_registry, @_;
722	}	888	}
		889	_recalc_want;
723	};	890	};
724		891
725	# all those should be optimised	892	# all those should be optimised
726	sub cf::attachable::detach {	893	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	894	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	897	delete $obj->{_attachment}{$name};
731	reattach ($obj);	898	reattach ($obj);
732	} else {	899	} else {
733	Carp::croak "cannot, currently, detach class attachments";	900	Carp::croak "cannot, currently, detach class attachments";
734	}	901	}
		902	_recalc_want;
735	};	903	};
736		904
737	sub cf::attachable::attached {	905	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	906	my ($obj, $name) = @_;
739		907
…		…
754	";	922	";
755	die if $@;	923	die if $@;
756	}	924	}
757		925
758	our $override;	926	our $override;
759	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	927	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
760		928
761	sub override {	929	sub override {
762	$override = 1;	930	$override = 1;
763	@invoke_results = ();	931	@INVOKE_RESULTS = (@_);
764	}	932	}
765		933
766	sub do_invoke {	934	sub do_invoke {
767	my $event = shift;	935	my $event = shift;
768	my $callbacks = shift;	936	my $callbacks = shift;
769		937
770	@invoke_results = ();	938	@INVOKE_RESULTS = ();
771		939
772	local $override;	940	local $override;
773		941
774	for (@$callbacks) {	942	for (@$callbacks) {
775	eval { &{$_->[1]} };	943	eval { &{$_->[1]} };
…		…
792		960
793	Generate an object-specific event with the given arguments.	961	Generate an object-specific event with the given arguments.
794		962
795	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	963	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
796	removed in future versions), and there is no public API to access override	964	removed in future versions), and there is no public API to access override
797	results (if you must, access C<@cf::invoke_results> directly).	965	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		966
799	=back	967	=back
800		968
801	=cut	969	=cut
802		970
803	#############################################################################	971	#############################################################################
804	# object support	972	# object support
		973	#
		974
		975	sub _can_merge {
		976	my ($ob1, $ob2) = @_;
		977
		978	local $Storable::canonical = 1;
		979	my $fob1 = Storable::freeze $ob1;
		980	my $fob2 = Storable::freeze $ob2;
		981
		982	$fob1 eq $fob2
		983	}
805		984
806	sub reattach {	985	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	986	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	987	my ($obj) = @_;
		988
		989	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		990
810	my $registry = $obj->registry;	991	my $registry = $obj->registry;
811		992
812	@$registry = ();	993	@$registry = ();
813		994
…		…
860	$filename, length $$rdata, scalar @$objs;	1041	$filename, length $$rdata, scalar @$objs;
861		1042
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1043	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1044	chmod SAVE_MODE, $fh;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1045	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
865	aio_fsync $fh;	1046	aio_fsync $fh if $cf::USE_FSYNC;
866	close $fh;	1047	close $fh;
867		1048
868	if (@$objs) {	1049	if (@$objs) {
869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1050	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
870	chmod SAVE_MODE, $fh;	1051	chmod SAVE_MODE, $fh;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1052	my $data = Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1053	aio_write $fh, 0, (length $data), $data, 0;
873	aio_fsync $fh;	1054	aio_fsync $fh if $cf::USE_FSYNC;
874	close $fh;	1055	close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1056	aio_rename "$filename.pst~", "$filename.pst";
876	}	1057	}
877	} else {	1058	} else {
878	aio_unlink "$filename.pst";	1059	aio_unlink "$filename.pst";
…		…
910	or return;	1091	or return;
911	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
912	}	1093	}
913		1094
914	warn sprintf "loading %s (%d)\n",	1095	warn sprintf "loading %s (%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1096	$filename, length $data, scalar @{$av || []};
916	return ($data, $av);	1097	return ($data, $av);
917	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
918		1105
919	#############################################################################	1106	#############################################################################
920	# command handling &c	1107	# command handling &c
921		1108
922	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1123	}
937		1124
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
939		1126
940	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
941		1132
942	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
943	called.	1134	called.
944		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
945	=cut	1147	=cut
946		1148
947	sub register_extcmd {	1149	sub register_extcmd {
948	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
949		1151
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
954	}	1159	}
955		1160
956	cf::player->attach (	1161	cf::player->attach (
957	on_command => sub {	1162	on_command => sub {
958	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
967	cf::override;	1172	cf::override;
968	},	1173	},
969	on_extcmd => sub {	1174	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
971		1176
972	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1178
974	if (ref $msg) {	1179	if (ref $msg) {
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1180	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1181	if (my %reply = $cb->($pl, $msg)) {
977	$pl->ext_reply ($msg->{msgid}, %reply);	1182	$pl->ext_reply ($msg->{msgid}, %reply);
978	}	1183	}
979	}	1184	}
980	} else {	1185	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1186	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
983		1188
984	cf::override;	1189	cf::override;
985	},	1190	},
986	);	1191	);
987		1192
988	sub register {
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {
995	my ($path) = @_;
996
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
998	my $base = $1;
999	my $pkg = $1;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}
1047	}
1048
1049	# remove extcmds
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1051	delete $EXTCMD{$name};
1052	}
1053
1054	if (my $cb = $pkg->can ("unload")) {
1055	eval {
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060
1061	Symbol::delete_package $pkg;
1062	}
1063
1064	sub load_extensions {	1193	sub load_extensions {
		1194	cf::sync_job {
		1195	my %todo;
		1196
1065	for my $ext (<$LIBDIR/*.ext>) {	1197	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1198	next unless -r $path;
1067	eval {	1199
1068	load_extension $ext;	1200	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1201	my $base = $1;
		1202	my $pkg = $1;
		1203	$pkg =~ s/[^[:word:]]/_/g;
		1204	$pkg = "ext::$pkg";
		1205
		1206	open my $fh, "<:utf8", $path
		1207	or die "$path: $!";
		1208
		1209	my $source = do { local $/; <$fh> };
		1210
		1211	my %ext = (
		1212	path => $path,
		1213	base => $base,
		1214	pkg => $pkg,
		1215	);
		1216
		1217	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1218	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1219
		1220	$ext{source} =
		1221	"package $pkg; use strict; use utf8;\n"
		1222	. "#line 1 \"$path\"\n{\n"
		1223	. $source
		1224	. "\n};\n1";
		1225
		1226	$todo{$base} = \%ext;
		1227	}
		1228
		1229	my %done;
		1230	while (%todo) {
		1231	my $progress;
		1232
		1233	while (my ($k, $v) = each %todo) {
		1234	for (split /,\s*/, $v->{meta}{depends}) {
		1235	goto skip
		1236	unless exists $done{$_};
		1237	}
		1238
		1239	warn "... loading '$k' into '$v->{pkg}'\n";
		1240
		1241	unless (eval $v->{source}) {
		1242	my $msg = $@ ? "$v->{path}: $@\n"
		1243	: "$v->{base}: extension inactive.\n";
		1244
		1245	if (exists $v->{meta}{mandatory}) {
		1246	warn $msg;
		1247	warn "mandatory extension failed to load, exiting.\n";
		1248	exit 1;
		1249	}
		1250
		1251	warn $msg;
		1252	}
		1253
		1254	$done{$k} = delete $todo{$k};
		1255	push @EXTS, $v->{pkg};
		1256	$progress = 1;
1069	1	1257	}
1070	} or warn "$ext not loaded: $@";	1258
		1259	skip:
		1260	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1261	unless $progress;
		1262	}
1071	}	1263	};
1072	}	1264	}
1073		1265
1074	#############################################################################	1266	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1267
1077	*cf::mapsupport::on_clean = sub {	1268	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1269
1090	=head2 CORE EXTENSIONS	1270	=head2 CORE EXTENSIONS
1091		1271
1092	Functions and methods that extend core crossfire objects.	1272	Functions and methods that extend core crossfire objects.
1093		1273
…		…
1106	Returns the given player object, loading it if necessary (might block).	1286	Returns the given player object, loading it if necessary (might block).
1107		1287
1108	=cut	1288	=cut
1109		1289
1110	sub playerdir($) {	1290	sub playerdir($) {
1111	cf::localdir	1291	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1292	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1293	}
1117		1294
1118	sub path($) {	1295	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1296	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1297
1121	(playerdir $login) . "/$login.pl"	1298	(playerdir $login) . "/playerdata"
1122	}	1299	}
1123		1300
1124	sub find_active($) {	1301	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1302	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1303	and $cf::PLAYER{$_[0]}->active
…		…
1129		1306
1130	sub exists($) {	1307	sub exists($) {
1131	my ($login) = @_;	1308	my ($login) = @_;
1132		1309
1133	$cf::PLAYER{$login}	1310	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1311	or cf::sync_job { !aio_stat path $login }
1135	}	1312	}
1136		1313
1137	sub find($) {	1314	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1315	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1316	my $login = $_[0];
1140		1317
1141	my $guard = cf::lock_acquire "user_find:$login";	1318	my $guard = cf::lock_acquire "user_find:$login";
1142		1319
1143	$cf::PLAYER{$_[0]} || do {	1320	$cf::PLAYER{$_[0]} || do {
		1321	# rename old playerfiles to new ones
		1322	#TODO: remove when no longer required
		1323	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1324	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1325	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1326	aio_unlink +(playerdir $login) . "/$login.pl";
		1327
1144	my $pl = load_pl path $login	1328	my $pl = load_pl path $login
1145	or return;	1329	or return;
1146	$cf::PLAYER{$login} = $pl	1330	$cf::PLAYER{$login} = $pl
1147	}	1331	}
1148	}	1332	}
…		…
1185		1369
1186	=cut	1370	=cut
1187		1371
1188	sub quit_character {	1372	sub quit_character {
1189	my ($pl) = @_;	1373	my ($pl) = @_;
		1374
		1375	my $name = $pl->ob->name;
1190		1376
1191	$pl->{deny_save} = 1;	1377	$pl->{deny_save} = 1;
1192	$pl->password ("*"); # this should lock out the player until we nuked the dir	1378	$pl->password ("*"); # this should lock out the player until we nuked the dir
1193		1379
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1380	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1199	my $path = playerdir $pl;	1385	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1386	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1387	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1388	delete $cf::PLAYER{$pl->ob->name};
1203	$pl->destroy;	1389	$pl->destroy;
		1390
		1391	my $prefix = qr<^~\Q$name\E/>;
		1392
		1393	# nuke player maps
		1394	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1395
1204	IO::AIO::aio_rmtree $temp;	1396	IO::AIO::aio_rmtree $temp;
		1397	}
		1398
		1399	=item $pl->kick
		1400
		1401	Kicks a player out of the game. This destroys the connection.
		1402
		1403	=cut
		1404
		1405	sub kick {
		1406	my ($pl, $kicker) = @_;
		1407
		1408	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1409	$pl->killer ("kicked");
		1410	$pl->ns->destroy;
1205	}	1411	}
1206		1412
1207	=item cf::player::list_logins	1413	=item cf::player::list_logins
1208		1414
1209	Returns am arrayref of all valid playernames in the system, can take a	1415	Returns am arrayref of all valid playernames in the system, can take a
1210	while and may block, so not sync_job-capable, ever.	1416	while and may block, so not sync_job-capable, ever.
1211		1417
1212	=cut	1418	=cut
1213		1419
1214	sub list_logins {	1420	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1421	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1422	or return [];
1217		1423
1218	my @logins;	1424	my @logins;
1219		1425
1220	for my $login (@$dirs) {	1426	for my $login (@$dirs) {
…		…
1229	\@logins	1435	\@logins
1230	}	1436	}
1231		1437
1232	=item $player->maps	1438	=item $player->maps
1233		1439
1234	Returns an arrayref of cf::path's of all maps that are private for this	1440	Returns an arrayref of map paths that are private for this
1235	player. May block.	1441	player. May block.
1236		1442
1237	=cut	1443	=cut
1238		1444
1239	sub maps($) {	1445	sub maps($) {
1240	my ($pl) = @_;	1446	my ($pl) = @_;
		1447
		1448	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1449
1242	my $files = aio_readdir playerdir $pl	1450	my $files = aio_readdir playerdir $pl
1243	or return;	1451	or return;
1244		1452
1245	my @paths;	1453	my @paths;
…		…
1247	for (@$files) {	1455	for (@$files) {
1248	utf8::decode $_;	1456	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1457	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1458	next unless /^$PATH_SEP/o;
1251		1459
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1460	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1461	}
1254		1462
1255	\@paths	1463	\@paths
1256	}	1464	}
1257		1465
		1466	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1467
		1468	Expand crossfire pod fragments into protocol xml.
		1469
		1470	=cut
		1471
		1472	sub expand_cfpod {
		1473	((my $self), (local $_)) = @_;
		1474
		1475	# escape & and <
		1476	s/&/&amp;/g;
		1477	s/(?<![BIUGH])</&lt;/g;
		1478
		1479	# this is buggy, it needs to properly take care of nested <'s
		1480
		1481	1 while
		1482	# replace B<>, I<>, U<> etc.
		1483	s/B<([^\>]*)>/<b>$1<\/b>/
		1484	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1485	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1486	# replace G<male|female> tags
		1487	|| s{G<([^>|]*)\|([^>]*)>}{
		1488	$self->gender ? $2 : $1
		1489	}ge
		1490	# replace H<hint text>
		1491	|| s{H<([^\>]*)>}
		1492	{
		1493	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1494	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1495	"")
		1496	[$self->{hintmode}]
		1497	}ge;
		1498
		1499	# create single paragraphs (very hackish)
		1500	s/(?<=\S)\n(?=\w)/ /g;
		1501
		1502	# compress some whitespace
		1503	s/\s+\n/\n/g; # ws line-ends
		1504	s/\n\n+/\n/g; # double lines
		1505	s/^\n+//; # beginning lines
		1506	s/\n+$//; # ending lines
		1507
		1508	$_
		1509	}
		1510
		1511	sub hintmode {
		1512	$_[0]{hintmode} = $_[1] if @_ > 1;
		1513	$_[0]{hintmode}
		1514	}
		1515
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1516	=item $player->ext_reply ($msgid, %msg)
1259		1517
1260	Sends an ext reply to the player.	1518	Sends an ext reply to the player.
1261		1519
1262	=cut	1520	=cut
1263		1521
1264	sub ext_reply($$$%) {	1522	sub ext_reply($$%) {
1265	my ($self, $id, %msg) = @_;	1523	my ($self, $id, %msg) = @_;
1266		1524
1267	$msg{msgid} = $id;	1525	$msg{msgid} = $id;
1268		1526	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1527	}
1271		1528
1272	package cf;	1529	=item $player->ext_event ($type, %msg)
		1530
		1531	Sends an ext event to the client.
		1532
		1533	=cut
		1534
		1535	sub ext_event($$%) {
		1536	my ($self, $type, %msg) = @_;
		1537
		1538	$self->ns->ext_event ($type, %msg);
		1539	}
		1540
		1541	=head3 cf::region
		1542
		1543	=over 4
		1544
		1545	=cut
		1546
		1547	package cf::region;
		1548
		1549	=item cf::region::find_by_path $path
		1550
		1551	Tries to decuce the likely region for a map knowing only its path.
		1552
		1553	=cut
		1554
		1555	sub find_by_path($) {
		1556	my ($path) = @_;
		1557
		1558	my ($match, $specificity);
		1559
		1560	for my $region (list) {
		1561	if ($region->{match} && $path =~ $region->{match}) {
		1562	($match, $specificity) = ($region, $region->specificity)
		1563	if $region->specificity > $specificity;
		1564	}
		1565	}
		1566
		1567	$match
		1568	}
1273		1569
1274	=back	1570	=back
1275
1276		1571
1277	=head3 cf::map	1572	=head3 cf::map
1278		1573
1279	=over 4	1574	=over 4
1280		1575
…		…
1283	package cf::map;	1578	package cf::map;
1284		1579
1285	use Fcntl;	1580	use Fcntl;
1286	use Coro::AIO;	1581	use Coro::AIO;
1287		1582
		1583	use overload
		1584	'""' => \&as_string,
		1585	fallback => 1;
		1586
1288	our $MAX_RESET = 3600;	1587	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1588	our $DEFAULT_RESET = 3000;
1290		1589
1291	sub generate_random_map {	1590	sub generate_random_map {
1292	my ($path, $rmp) = @_;	1591	my ($self, $rmp) = @_;
1293
1294	# mit "rum" bekleckern, nicht	1592	# mit "rum" bekleckern, nicht
1295	cf::map::_create_random_map	1593	$self->_create_random_map (
1296	$path,
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1594	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1595	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1596	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},	1597	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},	1598	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1599	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1600	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1601	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1602	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1603	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region})	1604	(cf::region::find $rmp->{region}), $rmp->{custom}
		1605	)
		1606	}
		1607
		1608	=item cf::map->register ($regex, $prio)
		1609
		1610	Register a handler for the map path matching the given regex at the
		1611	givne priority (higher is better, built-in handlers have priority 0, the
		1612	default).
		1613
		1614	=cut
		1615
		1616	sub register {
		1617	my (undef, $regex, $prio) = @_;
		1618	my $pkg = caller;
		1619
		1620	no strict;
		1621	push @{"$pkg\::ISA"}, __PACKAGE__;
		1622
		1623	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1624	}
		1625
		1626	# also paths starting with '/'
		1627	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1628
		1629	sub thawer_merge {
		1630	my ($self, $merge) = @_;
		1631
		1632	# we have to keep some variables in memory intact
		1633	local $self->{path};
		1634	local $self->{load_path};
		1635
		1636	$self->SUPER::thawer_merge ($merge);
		1637	}
		1638
		1639	sub normalise {
		1640	my ($path, $base) = @_;
		1641
		1642	$path = "$path"; # make sure its a string
		1643
		1644	$path =~ s/\.map$//;
		1645
		1646	# map plan:
		1647	#
		1648	# /! non-realised random map exit (special hack!)
		1649	# {... are special paths that are not being touched
		1650	# ?xxx/... are special absolute paths
		1651	# ?random/... random maps
		1652	# /... normal maps
		1653	# ~user/... per-player map of a specific user
		1654
		1655	$path =~ s/$PATH_SEP/\//go;
		1656
		1657	# treat it as relative path if it starts with
		1658	# something that looks reasonable
		1659	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1660	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1661
		1662	$base =~ s{[^/]+/?$}{};
		1663	$path = "$base/$path";
		1664	}
		1665
		1666	for ($path) {
		1667	redo if s{//}{/};
		1668	redo if s{/\.?/}{/};
		1669	redo if s{/[^/]+/\.\./}{/};
		1670	}
		1671
		1672	$path
		1673	}
		1674
		1675	sub new_from_path {
		1676	my (undef, $path, $base) = @_;
		1677
		1678	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1679
		1680	$path = normalise $path, $base;
		1681
		1682	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1683	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1684	my $self = bless cf::map::new, $pkg;
		1685	$self->{path} = $path; $self->path ($path);
		1686	$self->init; # pass $1 etc.
		1687	return $self;
		1688	}
		1689	}
		1690
		1691	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1692	()
		1693	}
		1694
		1695	sub init {
		1696	my ($self) = @_;
		1697
		1698	$self
		1699	}
		1700
		1701	sub as_string {
		1702	my ($self) = @_;
		1703
		1704	"$self->{path}"
		1705	}
		1706
		1707	# the displayed name, this is a one way mapping
		1708	sub visible_name {
		1709	&as_string
		1710	}
		1711
		1712	# the original (read-only) location
		1713	sub load_path {
		1714	my ($self) = @_;
		1715
		1716	"$MAPDIR/$self->{path}.map"
		1717	}
		1718
		1719	# the temporary/swap location
		1720	sub save_path {
		1721	my ($self) = @_;
		1722
		1723	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1724	"$TMPDIR/$path.map"
		1725	}
		1726
		1727	# the unique path, undef == no special unique path
		1728	sub uniq_path {
		1729	my ($self) = @_;
		1730
		1731	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1732	"$UNIQUEDIR/$path"
1308	}	1733	}
1309		1734
1310	# and all this just because we cannot iterate over	1735	# and all this just because we cannot iterate over
1311	# all maps in C++...	1736	# all maps in C++...
1312	sub change_all_map_light {	1737	sub change_all_map_light {
…		…
1314		1739
1315	$_->change_map_light ($change)	1740	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1741	for grep $_->outdoor, values %cf::MAP;
1317	}	1742	}
1318		1743
		1744	sub decay_objects {
		1745	my ($self) = @_;
		1746
		1747	return if $self->{deny_reset};
		1748
		1749	$self->do_decay_objects;
		1750	}
		1751
		1752	sub unlink_save {
		1753	my ($self) = @_;
		1754
		1755	utf8::encode (my $save = $self->save_path);
		1756	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1757	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1758	}
		1759
1319	sub try_load_header($) {	1760	sub load_header_from($) {
1320	my ($path) = @_;	1761	my ($self, $path) = @_;
1321		1762
1322	utf8::encode $path;	1763	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	1764	#aio_open $path, O_RDONLY, 0
		1765	# or return;
		1766
		1767	$self->_load_header ($path)
1324	or return;	1768	or return;
1325		1769
1326	my $map = cf::map::new	1770	$self->{load_path} = $path;
		1771
		1772	1
		1773	}
		1774
		1775	sub load_header_orig {
		1776	my ($self) = @_;
		1777
		1778	$self->load_header_from ($self->load_path)
		1779	}
		1780
		1781	sub load_header_temp {
		1782	my ($self) = @_;
		1783
		1784	$self->load_header_from ($self->save_path)
		1785	}
		1786
		1787	sub prepare_temp {
		1788	my ($self) = @_;
		1789
		1790	$self->last_access ((delete $self->{last_access})
		1791	|| $cf::RUNTIME); #d#
		1792	# safety
		1793	$self->{instantiate_time} = $cf::RUNTIME
		1794	if $self->{instantiate_time} > $cf::RUNTIME;
		1795	}
		1796
		1797	sub prepare_orig {
		1798	my ($self) = @_;
		1799
		1800	$self->{load_original} = 1;
		1801	$self->{instantiate_time} = $cf::RUNTIME;
		1802	$self->last_access ($cf::RUNTIME);
		1803	$self->instantiate;
		1804	}
		1805
		1806	sub load_header {
		1807	my ($self) = @_;
		1808
		1809	if ($self->load_header_temp) {
		1810	$self->prepare_temp;
		1811	} else {
		1812	$self->load_header_orig
1327	or return;	1813	or return;
		1814	$self->prepare_orig;
		1815	}
1328		1816
1329	# for better error messages only, will be overwritten	1817	$self->{deny_reset} = 1
1330	$map->path ($path);	1818	if $self->no_reset;
1331		1819
1332	$map->load_header ($path)	1820	$self->default_region (cf::region::find_by_path $self->{path})
1333	or return;	1821	unless $self->default_region;
1334		1822
1335	$map->{load_path} = $path;	1823	1
1336
1337	$map
1338	}	1824	}
1339		1825
1340	sub find;	1826	sub find;
1341	sub find {	1827	sub find {
1342	my ($path, $origin) = @_;	1828	my ($path, $origin) = @_;
1343		1829
1344	#warn "find<$path,$origin>\n";#d#
1345
1346	$path = new cf::path $path, $origin && $origin->path;	1830	$path = normalise $path, $origin && $origin->path;
1347	my $key = $path->as_string;
1348		1831
1349	cf::lock_wait "map_find:$key";	1832	cf::lock_wait "map_find:$path";
1350		1833
1351	$cf::MAP{$key} || do {	1834	$cf::MAP{$path} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	1835	my $guard = cf::lock_acquire "map_find:$path";
1353		1836	my $map = new_from_path cf::map $path
1354	# do it the slow way
1355	my $map = try_load_header $path->save_path;
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	1837	or return;
1373		1838
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	1839	$map->{last_save} = $cf::RUNTIME;
1386		1840
1387	Coro::cede;	1841	$map->load_header
		1842	or return;
1388		1843
1389	if ($map->should_reset) {	1844	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1845	# doing this can freeze the server in a sync job, obviously
		1846	#$cf::WAIT_FOR_TICK->wait;
1390	$map->reset;	1847	$map->reset;
1391	undef $guard;	1848	undef $guard;
1392	$map = find $path	1849	return find $path;
1393	or return;
1394	}	1850	}
1395		1851
1396	$cf::MAP{$key} = $map	1852	$cf::MAP{$path} = $map
1397	}	1853	}
1398	}	1854	}
		1855
		1856	sub pre_load { }
		1857	sub post_load { }
1399		1858
1400	sub load {	1859	sub load {
1401	my ($self) = @_;	1860	my ($self) = @_;
1402		1861
		1862	local $self->{deny_reset} = 1; # loading can take a long time
		1863
1403	my $path = $self->{path};	1864	my $path = $self->{path};
		1865
		1866	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1867	my $guard = cf::lock_acquire "map_load:$path";
1405		1868
1406	return if $self->in_memory != cf::MAP_SWAPPED;	1869	return if $self->in_memory != cf::MAP_SWAPPED;
1407		1870
1408	$self->in_memory (cf::MAP_LOADING);	1871	$self->in_memory (cf::MAP_LOADING);
1409		1872
1410	$self->alloc;	1873	$self->alloc;
		1874
		1875	$self->pre_load;
		1876	Coro::cede;
		1877
1411	$self->load_objects ($self->{load_path}, 1)	1878	$self->_load_objects ($self->{load_path}, 1)
1412	or return;	1879	or return;
1413		1880
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1881	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1415	if delete $self->{load_original};	1882	if delete $self->{load_original};
1416		1883
1417	if (my $uniq = $path->uniq_path) {	1884	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	1885	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	1886	if (aio_open $uniq, O_RDONLY, 0) {
1420	$self->clear_unique_items;	1887	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	1888	$self->_load_objects ($uniq, 0);
1422	}	1889	}
1423	}	1890	}
1424		1891
1425	Coro::cede;	1892	Coro::cede;
1426
1427	# now do the right thing for maps	1893	# now do the right thing for maps
1428	$self->link_multipart_objects;	1894	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	1895	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	1896	unless $self->difficulty;
		1897	Coro::cede;
		1898
		1899	unless ($self->{deny_activate}) {
		1900	$self->decay_objects;
		1901	$self->fix_auto_apply;
		1902	$self->update_buttons;
		1903	Coro::cede;
		1904	$self->set_darkness_map;
		1905	Coro::cede;
1440	$self->activate;	1906	$self->activate;
1441	}	1907	}
1442		1908
1443	Coro::cede;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
		1910	}
		1911
		1912	$self->post_load;
		1913	}
		1914
		1915	sub customise_for {
		1916	my ($self, $ob) = @_;
		1917
		1918	return find "~" . $ob->name . "/" . $self->{path}
		1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
		1923
		1924	$self
1446	}	1925	}
1447		1926
1448	# find and load all maps in the 3x3 area around a map	1927	# find and load all maps in the 3x3 area around a map
1449	sub load_diag {	1928	sub load_diag {
1450	my ($map) = @_;	1929	my ($map) = @_;
…		…
1480		1959
1481	cf::sync_job { $map->load };	1960	cf::sync_job { $map->load };
1482	}	1961	}
1483		1962
1484	our %MAP_PREFETCH;	1963	our %MAP_PREFETCH;
1485	our $MAP_PREFETCHER = Coro::async {	1964	our $MAP_PREFETCHER = undef;
1486	while () {
1487	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH
1489	or next;
1490	my $path = delete $MAP_PREFETCH{$key};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}
1496	Coro::schedule;
1497	}
1498	};
1499		1965
1500	sub find_async {	1966	sub find_async {
1501	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1502		1968
1503	$path = new cf::path $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->{path};
1504	my $key = $path->as_string;
1505		1970
1506	if (my $map = $cf::MAP{$key}) {	1971	if (my $map = $cf::MAP{$path}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1972	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}	1973	}
1509		1974
1510	$MAP_PREFETCH{$key} = $path;	1975	undef $MAP_PREFETCH{$path};
		1976	$MAP_PREFETCHER ||= cf::async {
		1977	while (%MAP_PREFETCH) {
		1978	for my $path (keys %MAP_PREFETCH) {
		1979	if (my $map = find $path) {
		1980	$map->load;
		1981	}
		1982
		1983	delete $MAP_PREFETCH{$path};
		1984	}
		1985	}
		1986	undef $MAP_PREFETCHER;
		1987	};
1511	$MAP_PREFETCHER->ready;	1988	$MAP_PREFETCHER->prio (6);
1512		1989
1513	()	1990	()
1514	}	1991	}
1515		1992
1516	sub save {	1993	sub save {
…		…
1520		1997
1521	$self->{last_save} = $cf::RUNTIME;	1998	$self->{last_save} = $cf::RUNTIME;
1522		1999
1523	return unless $self->dirty;	2000	return unless $self->dirty;
1524		2001
1525	my $save = $self->{path}->save_path; utf8::encode $save;	2002	my $save = $self->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
1527		2004
1528	$self->{load_path} = $save;	2005	$self->{load_path} = $save;
1529		2006
1530	return if $self->{deny_save};	2007	return if $self->{deny_save};
1531		2008
…		…
1534	cf::async {	2011	cf::async {
1535	$_->contr->save for $self->players;	2012	$_->contr->save for $self->players;
1536	};	2013	};
1537		2014
1538	if ($uniq) {	2015	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2016	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);	2017	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {	2018	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2019	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}	2020	}
1544	}	2021	}
1545		2022
1546	sub swap_out {	2023	sub swap_out {
1547	my ($self) = @_;	2024	my ($self) = @_;
…		…
1561		2038
1562	sub reset_at {	2039	sub reset_at {
1563	my ($self) = @_;	2040	my ($self) = @_;
1564		2041
1565	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1568		2044
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2047
…		…
1576	my ($self) = @_;	2052	my ($self) = @_;
1577		2053
1578	$self->reset_at <= $cf::RUNTIME	2054	$self->reset_at <= $cf::RUNTIME
1579	}	2055	}
1580		2056
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2057	sub reset {
1603	my ($self) = @_;	2058	my ($self) = @_;
1604		2059
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2061
1607	return if $self->players;	2062	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2063
1610	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
		2065
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067
		2068	# need to save uniques path
		2069	unless ($self->{deny_save}) {
		2070	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2071
		2072	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2073	if $uniq;
		2074	}
1611		2075
1612	delete $cf::MAP{$self->path};	2076	delete $cf::MAP{$self->path};
		2077
		2078	$self->clear;
1613		2079
1614	$_->clear_links_to ($self) for values %cf::MAP;	2080	$_->clear_links_to ($self) for values %cf::MAP;
1615		2081
1616	$self->unlink_save;	2082	$self->unlink_save;
1617	$self->destroy;	2083	$self->destroy;
…		…
1620	my $nuke_counter = "aaaa";	2086	my $nuke_counter = "aaaa";
1621		2087
1622	sub nuke {	2088	sub nuke {
1623	my ($self) = @_;	2089	my ($self) = @_;
1624		2090
		2091	delete $cf::MAP{$self->path};
		2092
		2093	$self->unlink_save;
		2094
		2095	bless $self, "cf::map";
		2096	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2097	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2098	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2099	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2100
		2101	$cf::MAP{$self->path} = $self;
		2102
1628	$self->reset; # polite request, might not happen	2103	$self->reset; # polite request, might not happen
1629	}	2104	}
1630		2105
1631	sub customise_for {	2106	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2107
1634	if ($map->per_player) {	2108	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2109	maps. May block.
		2110
		2111	=cut
		2112
		2113	sub tmp_maps() {
1636	}	2114	[
		2115	map {
		2116	utf8::decode $_;
		2117	/\.map$/
		2118	? normalise $_
		2119	: ()
		2120	} @{ aio_readdir $TMPDIR or [] }
		2121	]
		2122	}
1637		2123
1638	$map	2124	=item $maps = cf::map::random_maps
		2125
		2126	Returns an arrayref with all map paths of currently instantiated and saved
		2127	random maps. May block.
		2128
		2129	=cut
		2130
		2131	sub random_maps() {
		2132	[
		2133	map {
		2134	utf8::decode $_;
		2135	/\.map$/
		2136	? normalise "?random/$_"
		2137	: ()
		2138	} @{ aio_readdir $RANDOMDIR or [] }
		2139	]
1639	}	2140	}
1640		2141
1641	=item cf::map::unique_maps	2142	=item cf::map::unique_maps
1642		2143
1643	Returns an arrayref of cf::path's of all shared maps that have	2144	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	2145	instantiated unique items. May block.
1645		2146
1646	=cut	2147	=cut
1647		2148
1648	sub unique_maps() {	2149	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2150	[
1650	or return;	2151	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2152	utf8::decode $_;
1656	next if /\.pst$/;	2153	/\.map$/
1657	next unless /^$PATH_SEP/o;	2154	? normalise $_
1658		2155	: ()
1659	push @paths, new cf::path $_;	2156	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2157	]
1661
1662	\@paths
1663	}	2158	}
1664		2159
1665	package cf;	2160	package cf;
1666		2161
1667	=back	2162	=back
…		…
1713		2208
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2209	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2210
1716	if ($self->{record_replies}) {	2211	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2212	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2213
1718	} else {	2214	} else {
		2215	my $pl = $self->contr;
		2216
		2217	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2218	my $diag = $pl->{npc_dialog};
		2219	$diag->{pl}->ext_reply (
		2220	$diag->{id},
		2221	msgtype => "reply",
		2222	msg => $diag->{pl}->expand_cfpod ($msg),
		2223	add_topics => []
		2224	);
		2225
		2226	} else {
1719	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1721	}	2230	}
1722	}	2231	}
1723		2232
1724	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1725		2234
…		…
1739		2248
1740	=item $player_object->enter_link	2249	=item $player_object->enter_link
1741		2250
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2251	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2252
1744	The player should be reaosnably safe there for short amounts of time. You	2253	The player should be reasonably safe there for short amounts of time. You
1745	I<MUST> call C<leave_link> as soon as possible, though.	2254	I<MUST> call C<leave_link> as soon as possible, though.
1746		2255
		2256	Will never block.
		2257
1747	=item $player_object->leave_link ($map, $x, $y)	2258	=item $player_object->leave_link ($map, $x, $y)
1748		2259
1749	Moves the player out of the specila link map onto the given map. If the	2260	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2261	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2262	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2263	fails, to the emergency map position.
1753		2264
1754	Might block.	2265	Might block.
1755		2266
1756	=cut	2267	=cut
		2268
		2269	sub link_map {
		2270	unless ($LINK_MAP) {
		2271	$LINK_MAP = cf::map::find "{link}"
		2272	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2273	$LINK_MAP->load;
		2274	}
		2275
		2276	$LINK_MAP
		2277	}
1757		2278
1758	sub cf::object::player::enter_link {	2279	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2280	my ($self) = @_;
1760		2281
1761	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1762		2283
1763	return if $self->map == $LINK_MAP;	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2285
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1767		2288
1768	$self->enter_map ($LINK_MAP, 20, 20);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1769	}	2290	}
1770		2291
1771	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1773		2296
1774	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1775		2298
1776	unless ($map) {	2299	unless ($map) {
1777	# restore original map position	2300	# restore original map position
…		…
1795	$map->load;	2318	$map->load;
1796	$map->load_diag;	2319	$map->load_diag;
1797		2320
1798	return unless $self->contr->active;	2321	return unless $self->contr->active;
1799	$self->activate_recursive;	2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1800	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1801	}	2326	}
1802		2327
1803	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1804	on_logout => sub {
1805	my ($pl) = @_;
1806		2329
1807	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1808	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1809	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1810	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1811	};	2334	be called at the end of this process.
1812	}
1813	},
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2335
1817	# try to abort aborted map switching on player login :)
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834
1835	=item $player_object->goto ($path, $x, $y)
1836
1837	=cut	2336	=cut
		2337
		2338	our $GOTOGEN;
1838		2339
1839	sub cf::object::player::goto {	2340	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2342
1842	$path = new cf::path $path;	2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2345
1844	$self->enter_link;	2346	$self->enter_link;
1845		2347
1846	(async {	2348	(async {
		2349	my $map = eval {
1847	my $map = cf::map::find $path->as_string;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
1849		2354	$map = $check->($map) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2355	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
1854		2358
		2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
		2365	}
		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1856	})->prio (1);	2373	})->prio (1);
1857	}	2374	}
1858		2375
1859	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1860		2377
…		…
1862		2379
1863	sub parse_random_map_params {	2380	sub parse_random_map_params {
1864	my ($spec) = @_;	2381	my ($spec) = @_;
1865		2382
1866	my $rmp = { # defaults	2383	my $rmp = { # defaults
1867	xsize => 10,	2384	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2385	ysize => (cf::rndm 15, 40),
		2386	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2387	#layout => string,
1869	};	2388	};
1870		2389
1871	for (split /\n/, $spec) {	2390	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2391	my ($k, $v) = split /\s+/, $_, 2;
1873		2392
…		…
1877	$rmp	2396	$rmp
1878	}	2397	}
1879		2398
1880	sub prepare_random_map {	2399	sub prepare_random_map {
1881	my ($exit) = @_;	2400	my ($exit) = @_;
		2401
		2402	my $guard = cf::lock_acquire "exit_prepare:$exit";
1882		2403
1883	# all this does is basically replace the /! path by	2404	# all this does is basically replace the /! path by
1884	# a new random map path (?random/...) with a seed	2405	# a new random map path (?random/...) with a seed
1885	# that depends on the exit object	2406	# that depends on the exit object
1886		2407
1887	my $rmp = parse_random_map_params $exit->msg;	2408	my $rmp = parse_random_map_params $exit->msg;
1888		2409
1889	if ($exit->map) {	2410	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2411	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2412	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2413	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2414	$rmp->{origin_y} = $exit->y;
1894	}	2415	}
1895		2416
1896	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1897		2418
1898	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1899	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
		2421	my $meta = "$RANDOMDIR/$md5.meta";
1900		2422
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
		2425	undef $fh;
		2426	aio_rename "$meta~", $meta;
1903		2427
1904	$exit->slaying ("?random/$md5");	2428	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2429	$exit->msg (undef);
1906	}	2430	}
1907	}	2431	}
…		…
1909	sub cf::object::player::enter_exit {	2433	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2434	my ($self, $exit) = @_;
1911		2435
1912	return unless $self->type == cf::PLAYER;	2436	return unless $self->type == cf::PLAYER;
1913		2437
		2438	if ($exit->slaying eq "/!") {
		2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
		2442	cf::sync_job { prepare_random_map $exit };
		2443	}
		2444
		2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2446	my $hp = $exit->stats->hp;
		2447	my $sp = $exit->stats->sp;
		2448
1914	$self->enter_link;	2449	$self->enter_link;
		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
1915		2454
1916	(async {	2455	(async {
1917	$self->deactivate_recursive; # just to be sure	2456	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2457	unless (eval {
1919	prepare_random_map $exit	2458	$self->goto ($slaying, $hp, $sp);
1920	if $exit->slaying eq "/!";
1921
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1924		2459
1925	1;	2460	1;
1926	}) {	2461	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	2462	$self->message ("Something went wrong deep within the crossfire server. "
1928	. "I'll try to bring you back to the map you were before. "	2463	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	2464	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	2465	cf::NDI_UNIQUE | cf::NDI_RED);
1931		2466
1932	warn "ERROR in enter_exit: $@";	2467	warn "ERROR in enter_exit: $@";
1933	$self->leave_link;	2468	$self->leave_link;
1934	}	2469	}
1935	})->prio (1);	2470	})->prio (1);
…		…
1948		2483
1949	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
1951		2486
1952	utf8::encode $text;	2487	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	2489	}
1955		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= ~cf::NDI_UNIQUE; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_event (channel_info => %$channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2521	} else {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	if ($color >= 0) {
		2533	if (0 && $msg =~ /\[/) {
		2534	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2535	} else {
		2536	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2537	$self->send_packet ("drawinfo $color $msg")
		2538	}
		2539	}
		2540	}
		2541	}
		2542
		2543	=item $client->ext_event ($type, %msg)
		2544
		2545	Sends an ext event to the client.
		2546
		2547	=cut
		2548
		2549	sub cf::client::ext_event($$%) {
		2550	my ($self, $type, %msg) = @_;
		2551
		2552	return unless $self->extcmd;
		2553
		2554	$msg{msgtype} = "event_$type";
		2555	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2556	}
1956		2557
1957	=item $success = $client->query ($flags, "text", \&cb)	2558	=item $success = $client->query ($flags, "text", \&cb)
1958		2559
1959	Queues a query to the client, calling the given callback with	2560	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2561	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2562	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		2563
1963	Queries can fail, so check the return code. Or don't, as queries will become	2564	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	2565	become reliable at some point in the future.
1965		2566
1966	=cut	2567	=cut
1967		2568
1968	sub cf::client::query {	2569	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	2570	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	2578	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2579	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		2580
1980	$self->send_packet ($self->{query_queue}[0][0])	2581	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	2582	if @{ $self->{query_queue} } == 1;
		2583
		2584	1
1982	}	2585	}
1983		2586
1984	cf::client->attach (	2587	cf::client->attach (
		2588	on_connect => sub {
		2589	my ($ns) = @_;
		2590
		2591	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2592	},
1985	on_reply => sub {	2593	on_reply => sub {
1986	my ($ns, $msg) = @_;	2594	my ($ns, $msg) = @_;
1987		2595
1988	# this weird shuffling is so that direct followup queries	2596	# this weird shuffling is so that direct followup queries
1989	# get handled first	2597	# get handled first
1990	my $queue = delete $ns->{query_queue}	2598	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	2599	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		2600
1993	(shift @$queue)->[1]->($msg);	2601	(shift @$queue)->[1]->($msg);
		2602	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		2603
1995	push @{ $ns->{query_queue} }, @$queue;	2604	push @{ $ns->{query_queue} }, @$queue;
1996		2605
1997	if (@{ $ns->{query_queue} } == @$queue) {	2606	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	2607	if (@$queue) {
…		…
2000	} else {	2609	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2610	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	2611	}
2003	}	2612	}
2004	},	2613	},
		2614	on_exticmd => sub {
		2615	my ($ns, $buf) = @_;
		2616
		2617	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2618
		2619	if (ref $msg) {
		2620	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2621	if (my %reply = $cb->($ns, $msg)) {
		2622	$reply{msgid} = $msg->{msgid};
		2623	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2624	}
		2625	}
		2626	} else {
		2627	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2628	}
		2629
		2630	cf::override;
		2631	},
2005	);	2632	);
2006		2633
2007	=item $client->async (\&cb)	2634	=item $client->async (\&cb)
2008		2635
2009	Create a new coroutine, running the specified callback. The coroutine will	2636	Create a new coroutine, running the specified callback. The coroutine will
…		…
2056		2683
2057	# here we export the classes and methods available to script code	2684	# here we export the classes and methods available to script code
2058		2685
2059	=pod	2686	=pod
2060		2687
2061	The following fucntions and emthods are available within a safe environment:	2688	The following functions and methods are available within a safe environment:
2062		2689
2063	cf::object contr pay_amount pay_player map	2690	cf::object
		2691	contr pay_amount pay_player map x y force_find force_add
		2692	insert remove
		2693
2064	cf::object::player player	2694	cf::object::player
2065	cf::player peaceful	2695	player
2066	cf::map trigger	2696
		2697	cf::player
		2698	peaceful
		2699
		2700	cf::map
		2701	trigger
2067		2702
2068	=cut	2703	=cut
2069		2704
2070	for (	2705	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	2706	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2707	insert remove)],
2072	["cf::object::player" => qw(player)],	2708	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	2709	["cf::player" => qw(peaceful)],
2074	["cf::map" => qw(trigger)],	2710	["cf::map" => qw(trigger)],
2075	) {	2711	) {
2076	no strict 'refs';	2712	no strict 'refs';
…		…
2147	=back	2783	=back
2148		2784
2149	=cut	2785	=cut
2150		2786
2151	#############################################################################	2787	#############################################################################
		2788	# the server's init and main functions
2152		2789
2153	=head2 EXTENSION DATABASE SUPPORT	2790	sub load_facedata($) {
		2791	my ($path) = @_;
2154		2792
2155	Crossfire maintains a very simple database for extension use. It can	2793	warn "loading facedata from $path\n";
2156	currently store anything that can be serialised using Storable, which
2157	excludes objects.
2158		2794
2159	The parameter C<$family> should best start with the name of the extension	2795	my $facedata;
2160	using it, it should be unique.	2796	0 < aio_load $path, $facedata
		2797	or die "$path: $!";
2161		2798
2162	=over 4	2799	$facedata = Coro::Storable::thaw $facedata;
2163		2800
2164	=item $hashref = cf::db_get $family	2801	$facedata->{version} == 2
		2802	or cf::cleanup "$path: version mismatch, cannot proceed.";
2165		2803
2166	Return a hashref for use by the extension C<$family>, which can be
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169
2170	=item $value = cf::db_get $family => $key
2171
2172	Returns a single value from the database
2173
2174	=item cf::db_put $family => $hashref
2175
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195
2196	{
2197	my $path = cf::localdir . "/database.pst";
2198
2199	sub db_load() {
2200	$DB = stat $path ? Storable::retrieve $path : { };
2201	}	2804	{
		2805	my $faces = $facedata->{faceinfo};
2202		2806
2203	my $pid;	2807	while (my ($face, $info) = each %$faces) {
		2808	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2809	cf::face::set_visibility $idx, $info->{visibility};
		2810	cf::face::set_magicmap $idx, $info->{magicmap};
		2811	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2812	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2204		2813
2205	sub db_save() {	2814	cf::cede_to_tick;
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	2815	}
2251	);
2252	}
2253		2816
2254	#############################################################################	2817	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	2818	next unless $info->{smooth};
		2819	my $idx = cf::face::find $face
		2820	or next;
		2821	if (my $smooth = cf::face::find $info->{smooth}) {
		2822	cf::face::set_smooth $idx, $smooth;
		2823	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2824	} else {
		2825	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2826	}
		2827
		2828	cf::cede_to_tick;
		2829	}
		2830	}
		2831
		2832	{
		2833	my $anims = $facedata->{animinfo};
		2834
		2835	while (my ($anim, $info) = each %$anims) {
		2836	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2837	cf::cede_to_tick;
		2838	}
		2839
		2840	cf::anim::invalidate_all; # d'oh
		2841	}
		2842
		2843	{
		2844	# TODO: for gcfclient pleasure, we should give resources
		2845	# that gcfclient doesn't grok a >10000 face index.
		2846	my $res = $facedata->{resource};
		2847	my $enc = JSON::XS->new->utf8->canonical;
		2848
		2849	while (my ($name, $info) = each %$res) {
		2850	my $meta = $enc->encode ({
		2851	name => $name,
		2852	type => $info->{type},
		2853	copyright => $info->{copyright}, #TODO#
		2854	});
		2855
		2856	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2857
		2858	if ($name =~ /\.jpg$/) {
		2859	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2860	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2861	} else {
		2862	my $data = pack "(w/a*)*", $meta, $info->{data};
		2863	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2864
		2865	cf::face::set_type $idx, 1;
		2866	cf::face::set_data $idx, 0, $data, $chk;
		2867	}
		2868
		2869	cf::cede_to_tick;
		2870	}
		2871	}
		2872
		2873	1
		2874	}
		2875
		2876	sub reload_regions {
		2877	load_resource_file "$MAPDIR/regions"
		2878	or die "unable to load regions file\n";
		2879
		2880	for (cf::region::list) {
		2881	$_->{match} = qr/$_->{match}/
		2882	if exists $_->{match};
		2883	}
		2884	}
		2885
		2886	sub reload_facedata {
		2887	load_facedata "$DATADIR/facedata"
		2888	or die "unable to load facedata\n";
		2889	}
		2890
		2891	sub reload_archetypes {
		2892	load_resource_file "$DATADIR/archetypes"
		2893	or die "unable to load archetypes\n";
		2894	#d# NEED to laod twice to resolve forward references
		2895	# this really needs to be done in an extra post-pass
		2896	# (which needs to be synchronous, so solve it differently)
		2897	load_resource_file "$DATADIR/archetypes"
		2898	or die "unable to load archetypes\n";
		2899	}
		2900
		2901	sub reload_treasures {
		2902	load_resource_file "$DATADIR/treasures"
		2903	or die "unable to load treasurelists\n";
		2904	}
		2905
		2906	sub reload_resources {
		2907	warn "reloading resource files...\n";
		2908
		2909	reload_regions;
		2910	reload_facedata;
		2911	#reload_archetypes;#d#
		2912	reload_archetypes;
		2913	reload_treasures;
		2914
		2915	warn "finished reloading resource files\n";
		2916	}
		2917
		2918	sub init {
		2919	reload_resources;
		2920	}
2256		2921
2257	sub cfg_load {	2922	sub cfg_load {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	2923	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	2924	or return;
2260		2925
2261	local $/;	2926	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	2927	*CFG = YAML::Syck::Load <$fh>;
2263		2928
…		…
2277		2942
2278	sub main {	2943	sub main {
2279	# we must not ever block the main coroutine	2944	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	2945	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2946	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2947	(async {
2282	async { Event::one_event };	2948	Event::one_event;
		2949	})->prio (Coro::PRIO_MAX);
2283	};	2950	};
2284		2951
2285	cfg_load;	2952	cfg_load;
2286	db_load;	2953	db_init;
2287	load_extensions;	2954	load_extensions;
		2955
		2956	$TICK_WATCHER->start;
2288	Event::loop;	2957	Event::loop;
2289	}	2958	}
2290		2959
2291	#############################################################################	2960	#############################################################################
2292	# initialisation and cleanup	2961	# initialisation and cleanup
2293		2962
2294	# install some emergency cleanup handlers	2963	# install some emergency cleanup handlers
2295	BEGIN {	2964	BEGIN {
2296	for my $signal (qw(INT HUP TERM)) {	2965	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	2966	Event->signal (
		2967	reentrant => 0,
2298	data => WF_AUTOCANCEL,	2968	data => WF_AUTOCANCEL,
2299	signal => $signal,	2969	signal => $signal,
		2970	prio => 0,
2300	cb => sub {	2971	cb => sub {
2301	cf::cleanup "SIG$signal";	2972	cf::cleanup "SIG$signal";
2302	},	2973	},
2303	);	2974	);
2304	}	2975	}
2305	}	2976	}
2306		2977
		2978	sub write_runtime {
		2979	my $runtime = "$LOCALDIR/runtime";
		2980
		2981	# first touch the runtime file to show we are still running:
		2982	# the fsync below can take a very very long time.
		2983
		2984	IO::AIO::aio_utime $runtime, undef, undef;
		2985
		2986	my $guard = cf::lock_acquire "write_runtime";
		2987
		2988	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2989	or return;
		2990
		2991	my $value = $cf::RUNTIME + 90 + 10;
		2992	# 10 is the runtime save interval, for a monotonic clock
		2993	# 60 allows for the watchdog to kill the server.
		2994
		2995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2996	and return;
		2997
		2998	# always fsync - this file is important
		2999	aio_fsync $fh
		3000	and return;
		3001
		3002	# touch it again to show we are up-to-date
		3003	aio_utime $fh, undef, undef;
		3004
		3005	close $fh
		3006	or return;
		3007
		3008	aio_rename "$runtime~", $runtime
		3009	and return;
		3010
		3011	warn "runtime file written.\n";
		3012
		3013	1
		3014	}
		3015
2307	sub emergency_save() {	3016	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3017	my $freeze_guard = cf::freeze_mainloop;
2309		3018
2310	warn "enter emergency perl save\n";	3019	warn "enter emergency perl save\n";
2311		3020
2312	cf::sync_job {	3021	cf::sync_job {
2313	# use a peculiar iteration method to avoid tripping on perl	3022	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3023	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3024	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3025	warn "begin emergency player save\n";
2317	for my $login (keys %cf::PLAYER) {	3026	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3027	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3028	$pl->valid or next;
2320	$pl->save;	3029	$pl->save;
…		…
2326	my $map = $cf::MAP{$path} or next;	3035	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3036	$map->valid or next;
2328	$map->save;	3037	$map->save;
2329	}	3038	}
2330	warn "end emergency map save\n";	3039	warn "end emergency map save\n";
		3040
		3041	warn "begin emergency database checkpoint\n";
		3042	BDB::db_env_txn_checkpoint $DB_ENV;
		3043	warn "end emergency database checkpoint\n";
2331	};	3044	};
2332		3045
2333	warn "leave emergency perl save\n";	3046	warn "leave emergency perl save\n";
2334	}	3047	}
2335		3048
		3049	sub post_cleanup {
		3050	my ($make_core) = @_;
		3051
		3052	warn Carp::longmess "post_cleanup backtrace"
		3053	if $make_core;
		3054	}
		3055
2336	sub reload() {	3056	sub do_reload_perl() {
2337	# can/must only be called in main	3057	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3058	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine\n";	3059	warn "can only reload from main coroutine";
2340	return;	3060	return;
2341	}	3061	}
2342		3062
2343	warn "reloading...";	3063	warn "reloading...";
2344		3064
2345	my $guard = freeze_mainloop;	3065	warn "entering sync_job";
		3066
		3067	cf::sync_job {
		3068	cf::write_runtime; # external watchdog should not bark
2346	cf::emergency_save;	3069	cf::emergency_save;
		3070	cf::write_runtime; # external watchdog should not bark
2347		3071
2348	eval {	3072	warn "syncing database to disk";
		3073	BDB::db_env_txn_checkpoint $DB_ENV;
		3074
2349	# if anything goes wrong in here, we should simply crash as we already saved	3075	# if anything goes wrong in here, we should simply crash as we already saved
2350		3076
2351	# cancel all watchers	3077	warn "cancelling all WF_AUTOCANCEL watchers";
2352	for (Event::all_watchers) {	3078	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;	3079	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}	3080	}
2355		3081
		3082	warn "flushing outstanding aio requests";
		3083	for (;;) {
		3084	BDB::flush;
		3085	IO::AIO::flush;
		3086	Coro::cede;
		3087	last unless IO::AIO::nreqs || BDB::nreqs;
		3088	warn "iterate...";
		3089	}
		3090
		3091	++$RELOAD;
		3092
2356	# cancel all extension coros	3093	warn "cancelling all extension coros";
2357	$_->cancel for values %EXT_CORO;	3094	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	3095	%EXT_CORO = ();
2359		3096
2360	# unload all extensions	3097	warn "removing commands";
2361	for (@exts) {	3098	%COMMAND = ();
		3099
		3100	warn "removing ext/exti commands";
		3101	%EXTCMD = ();
		3102	%EXTICMD = ();
		3103
		3104	warn "unloading/nuking all extensions";
		3105	for my $pkg (@EXTS) {
2362	warn "unloading <$_>";	3106	warn "... unloading $pkg";
2363	unload_extension $_;	3107
		3108	if (my $cb = $pkg->can ("unload")) {
		3109	eval {
		3110	$cb->($pkg);
		3111	1
		3112	} or warn "$pkg unloaded, but with errors: $@";
2364	}	3113	}
2365		3114
		3115	warn "... nuking $pkg";
		3116	Symbol::delete_package $pkg;
		3117	}
		3118
2366	# unload all modules loaded from $LIBDIR	3119	warn "unloading all perl modules loaded from $LIBDIR";
2367	while (my ($k, $v) = each %INC) {	3120	while (my ($k, $v) = each %INC) {
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3121	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2369		3122
2370	warn "removing <$k>";	3123	warn "... unloading $k";
2371	delete $INC{$k};	3124	delete $INC{$k};
2372		3125
2373	$k =~ s/\.pm$//;	3126	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;	3127	$k =~ s/\//::/g;
2375		3128
…		…
2378	}	3131	}
2379		3132
2380	Symbol::delete_package $k;	3133	Symbol::delete_package $k;
2381	}	3134	}
2382		3135
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	3136	warn "getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	3137	Symbol::delete_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3138	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		3139
2391	# remove register_script_function callbacks
2392	# TODO
2393
2394	# unload cf.pm "a bit"	3140	warn "unloading cf.pm \"a bit\"";
2395	delete $INC{"cf.pm"};	3141	delete $INC{"cf.pm"};
		3142	delete $INC{"cf/pod.pm"};
2396		3143
2397	# don't, removes xs symbols, too,	3144	# don't, removes xs symbols, too,
2398	# and global variables created in xs	3145	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	3146	#Symbol::delete_package __PACKAGE__;
2400		3147
2401	# reload cf.pm	3148	warn "unload completed, starting to reload now";
		3149
2402	warn "reloading cf.pm";	3150	warn "reloading cf.pm";
2403	require cf;	3151	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3152	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2405		3153
2406	# load config and database again	3154	warn "loading config and database again";
2407	cf::cfg_load;	3155	cf::cfg_load;
2408	cf::db_load;
2409		3156
2410	# load extensions
2411	warn "load extensions";	3157	warn "loading extensions";
2412	cf::load_extensions;	3158	cf::load_extensions;
2413		3159
2414	# reattach attachments to objects	3160	warn "reattaching attachments to objects/players";
2415	warn "reattach";	3161	_global_reattach; # objects, sockets
2416	_global_reattach;	3162	warn "reattaching attachments to maps";
2417	reattach $_ for values %MAP;	3163	reattach $_ for values %MAP;
2418	};	3164	warn "reattaching attachments to players";
		3165	reattach $_ for values %PLAYER;
2419		3166
2420	if ($@) {	3167	warn "leaving sync_job";
		3168
		3169	1
		3170	} or do {
2421	warn $@;	3171	warn $@;
2422	warn "error while reloading, exiting.";	3172	warn "error while reloading, exiting.";
2423	exit 1;	3173	exit 1;
2424	}	3174	};
2425		3175
2426	warn "reloaded successfully";	3176	warn "reloaded";
2427	};	3177	};
2428		3178
2429	#############################################################################	3179	our $RELOAD_WATCHER; # used only during reload
2430		3180
2431	unless ($LINK_MAP) {	3181	sub reload_perl() {
2432	$LINK_MAP = cf::map::new;	3182	# doing reload synchronously and two reloads happen back-to-back,
		3183	# coro crashes during coro_state_free->destroy here.
2433		3184
2434	$LINK_MAP->width (41);	3185	$RELOAD_WATCHER ||= Event->timer (
2435	$LINK_MAP->height (41);	3186	reentrant => 0,
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,	3187	after => 0,
		3188	data => WF_AUTOCANCEL,
2444	cb => sub {	3189	cb => sub {
2445	$_[0]->w->cancel;	3190	do_reload_perl;
2446		3191	undef $RELOAD_WATCHER;
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});	3192	},
2465		3193	);
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	3194	}
2471
2472	register "<global>", __PACKAGE__;
2473		3195
2474	register_command "reload" => sub {	3196	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3197	my ($who, $arg) = @_;
2476		3198
2477	if ($who->flag (FLAG_WIZ)) {	3199	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	3200	$who->message ("reloading server.");
		3201	async { reload_perl };
2481	}	3202	}
2482	};	3203	};
2483		3204
2484	unshift @INC, $LIBDIR;	3205	unshift @INC, $LIBDIR;
2485		3206
		3207	my $bug_warning = 0;
		3208
		3209	our @WAIT_FOR_TICK;
		3210	our @WAIT_FOR_TICK_BEGIN;
		3211
		3212	sub wait_for_tick {
		3213	return unless $TICK_WATCHER->is_active;
		3214	return if $Coro::current == $Coro::main;
		3215
		3216	my $signal = new Coro::Signal;
		3217	push @WAIT_FOR_TICK, $signal;
		3218	$signal->wait;
		3219	}
		3220
		3221	sub wait_for_tick_begin {
		3222	return unless $TICK_WATCHER->is_active;
		3223	return if $Coro::current == $Coro::main;
		3224
		3225	my $signal = new Coro::Signal;
		3226	push @WAIT_FOR_TICK_BEGIN, $signal;
		3227	$signal->wait;
		3228	}
		3229
		3230	my $min = 1e6;#d#
		3231	my $avg = 10;
2486	$TICK_WATCHER = Event->timer (	3232	$TICK_WATCHER = Event->timer (
2487	reentrant => 0,	3233	reentrant => 0,
		3234	parked => 1,
2488	prio => 0,	3235	prio => 0,
2489	at => $NEXT_TICK || $TICK,	3236	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,	3237	data => WF_AUTOCANCEL,
2491	cb => sub {	3238	cb => sub {
		3239	if ($Coro::current != $Coro::main) {
		3240	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3241	unless ++$bug_warning > 10;
		3242	return;
		3243	}
		3244
		3245	$NOW = $tick_start = Event::time;
		3246
2492	cf::server_tick; # one server iteration	3247	cf::server_tick; # one server iteration
		3248
		3249	0 && sync_job {#d#
		3250	for(1..10) {
		3251	my $t = Event::time;
		3252	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3253	or die;
		3254
		3255	$map->width (50);
		3256	$map->height (50);
		3257	$map->alloc;
		3258	$map->_load_objects ("/tmp/x.map", 1);
		3259	my $t = Event::time - $t;
		3260
		3261	#next unless $t < 0.0013;#d#
		3262	if ($t < $min) {
		3263	$min = $t;
		3264	}
		3265	$avg = $avg * 0.99 + $t * 0.01;
		3266	}
		3267	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3268	exit 0;
		3269	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3270	};
		3271
2493	$RUNTIME += $TICK;	3272	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;	3273	$NEXT_TICK += $TICK;
2495		3274
2496	$WAIT_FOR_TICK->broadcast;	3275	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3276	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3277	Coro::async_pool {
		3278	write_runtime
		3279	or warn "ERROR: unable to write runtime file: $!";
		3280	};
		3281	}
		3282
		3283	# my $AFTER = Event::time;
		3284	# warn $AFTER - $NOW;#d#
		3285
		3286	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3287	$sig->send;
		3288	}
		3289	while (my $sig = shift @WAIT_FOR_TICK) {
		3290	$sig->send;
		3291	}
		3292
		3293	$NOW = Event::time;
2498		3294
2499	# if we are delayed by four ticks or more, skip them all	3295	# if we are delayed by four ticks or more, skip them all
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3296	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2501		3297
2502	$TICK_WATCHER->at ($NEXT_TICK);	3298	$TICK_WATCHER->at ($NEXT_TICK);
2503	$TICK_WATCHER->start;	3299	$TICK_WATCHER->start;
		3300
		3301	$LOAD = ($NOW - $tick_start) / $TICK;
		3302	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3303
		3304	_post_tick;
		3305
		3306
2504	},	3307	},
2505	);	3308	);
2506		3309
		3310	{
2507	IO::AIO::max_poll_time $TICK * 0.2;	3311	BDB::max_poll_time $TICK * 0.1;
2508		3312	$BDB_POLL_WATCHER = Event->io (
2509	Event->io (	3313	reentrant => 0,
2510	fd => IO::AIO::poll_fileno,	3314	fd => BDB::poll_fileno,
2511	poll => 'r',	3315	poll => 'r',
2512	prio => 5,	3316	prio => 0,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516
2517	Event->timer (
2518	data => WF_AUTOCANCEL,	3317	data => WF_AUTOCANCEL,
2519	after => 0,	3318	cb => \&BDB::poll_cb,
2520	interval => 10,	3319	);
2521	cb => sub {	3320	BDB::min_parallel 8;
2522	(Coro::unblock_sub {	3321
2523	write_runtime	3322	BDB::set_sync_prepare {
2524	or warn "ERROR: unable to write runtime file: $!";	3323	my $status;
		3324	my $current = $Coro::current;
		3325	(
		3326	sub {
		3327	$status = $!;
		3328	$current->ready; undef $current;
		3329	},
		3330	sub {
		3331	Coro::schedule while defined $current;
		3332	$! = $status;
		3333	},
		3334	)
		3335	};
		3336
		3337	unless ($DB_ENV) {
		3338	$DB_ENV = BDB::db_env_create;
		3339
		3340	cf::sync_job {
		3341	eval {
		3342	BDB::db_env_open
		3343	$DB_ENV,
		3344	$BDBDIR,
		3345	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3346	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3347	0666;
		3348
		3349	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3350
		3351	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3352	$DB_ENV->set_lk_detect;
		3353	};
		3354
		3355	cf::cleanup "db_env_open(db): $@" if $@;
2525	})->();	3356	};
2526	},	3357	}
2527	);	3358	}
		3359
		3360	{
		3361	IO::AIO::min_parallel 8;
		3362
		3363	undef $Coro::AIO::WATCHER;
		3364	IO::AIO::max_poll_time $TICK * 0.1;
		3365	$AIO_POLL_WATCHER = Event->io (
		3366	reentrant => 0,
		3367	data => WF_AUTOCANCEL,
		3368	fd => IO::AIO::poll_fileno,
		3369	poll => 'r',
		3370	prio => 6,
		3371	cb => \&IO::AIO::poll_cb,
		3372	);
		3373	}
		3374
		3375	my $_log_backtrace;
		3376
		3377	sub _log_backtrace {
		3378	my ($msg, @addr) = @_;
		3379
		3380	$msg =~ s/\n//;
		3381
		3382	# limit the # of concurrent backtraces
		3383	if ($_log_backtrace < 2) {
		3384	++$_log_backtrace;
		3385	async {
		3386	my @bt = fork_call {
		3387	@addr = map { sprintf "%x", $_ } @addr;
		3388	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3389	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3390	or die "addr2line: $!";
		3391
		3392	my @funcs;
		3393	my @res = <$fh>;
		3394	chomp for @res;
		3395	while (@res) {
		3396	my ($func, $line) = splice @res, 0, 2, ();
		3397	push @funcs, "[$func] $line";
		3398	}
		3399
		3400	@funcs
		3401	};
		3402
		3403	LOG llevInfo, "[ABT] $msg\n";
		3404	LOG llevInfo, "[ABT] $_\n" for @bt;
		3405	--$_log_backtrace;
		3406	};
		3407	} else {
		3408	LOG llevInfo, "[ABT] $msg\n";
		3409	LOG llevInfo, "[ABT] [suppressed]\n";
		3410	}
		3411	}
		3412
		3413	# load additional modules
		3414	use cf::pod;
2528		3415
2529	END { cf::emergency_save }	3416	END { cf::emergency_save }
2530		3417
2531	1	3418	1
2532		3419

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