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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.188 by root, Sat Jan 20 23:30:16 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 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 3.4 ();	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 = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	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(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	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;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
87		118
88	#############################################################################	119	#############################################################################
89		120
90	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
91		122
…		…
98	=item $cf::RUNTIME	129	=item $cf::RUNTIME
99		130
100	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
101	every server tick.	132	every server tick.
102		133
103	=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
104		137
105	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		142
108	=item $cf::NOW	143	=item $cf::NOW
109		144
110	The time of the last (current) server tick.	145	The time of the last (current) server tick.
111		146
112	=item $cf::TICK	147	=item $cf::TICK
113		148
114	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.
115		160
116	=item %cf::CFG	161	=item %cf::CFG
117		162
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	164	from wherever your confdir points to.
120		165
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		167
123	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
124	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
125	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.
126	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.
127		177
128	=back	178	=back
129		179
130	=cut	180	=cut
131		181
132	BEGIN {	182	BEGIN {
133	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	184	my $msg = join "", @_;
135	utf8::encode $msg;
136		185
137	$msg .= "\n"	186	$msg .= "\n"
138	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
139		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
140	LOG llevError, $msg;	192	LOG llevError, $msg;
141	};	193	};
142	}	194	}
143		195
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		203
151	# 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
152	# within the Safe compartment.	205	# within the Safe compartment.
153	for my $pkg (qw(	206	for my $pkg (qw(
154	cf::global cf::attachable	207	cf::global cf::attachable
…		…
162	}	215	}
163		216
164	$Event::DIED = sub {	217	$Event::DIED = sub {
165	warn "error in event callback: @_";	218	warn "error in event callback: @_";
166	};	219	};
		220
		221	#############################################################################
167		222
168	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
169		224
170	=over 4	225	=over 4
171		226
…		…
190	$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;
191	$d	246	$d
192	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
193	}	248	}
194		249
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
198		251
199	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
200		253
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
209		255
210	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
211		257
212	=cut	258	=cut
213		259
214	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
216	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
217	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
218		264
219	=item cf::lock_wait $string	265	=item cf::lock_wait $string
220		266
221	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
222		268
…		…
228	returned.	274	returned.
229		275
230	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
231	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
232		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
233	=cut	283	=cut
234		284
235	our %LOCK;	285	our %LOCK;
236		286
237	sub lock_wait($) {	287	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
258	}	308	}
259	}	309	}
260		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
261	sub freeze_mainloop {	317	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
263		319
264	my $guard = Coro::guard {	320	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	322	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
270	$guard	324	$guard
271	}	325	}
272		326
273	=item cf::async { BLOCK }	327	=item cf::async { BLOCK }
…		…
280		334
281	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
282		336
283	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
284		338
285	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
288		343
289	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
292	fast or be very important.	347	fast or be very important.
…		…
295		350
296	sub sync_job(&) {	351	sub sync_job(&) {
297	my ($job) = @_;	352	my ($job) = @_;
298		353
299	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
300	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
302		359
303	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	361	# (but this is cancel-safe)
…		…
315		372
316	while ($busy) {	373	while ($busy) {
317	Coro::cede or Event::one_event;	374	Coro::cede or Event::one_event;
318	}	375	}
319		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
320	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
321	} else {	385	} else {
322	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
323		387
324	$job->()	388	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
344		408
345	$coro	409	$coro
346	}	410	}
347		411
348	sub write_runtime {	412	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		413
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
352	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
353		418
354	my $value = $cf::RUNTIME + 90 + 10;	419	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		420
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	421	sub _store_scalar {
359	and return;	422	open my $fh, ">", \my $buf
360		423	or die "fork_call: cannot open fh-to-buf in child : $!";
361	aio_fsync $fh	424	Storable::store_fd $_[0], $fh;
362	and return;
363
364	close $fh	425	close $fh;
365	or return;
366		426
367	aio_rename "$runtime~", $runtime	427	$buf
368	and return;	428	}
369		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
370	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	599	}
372		600
373	=back	601	=back
374		602
375	=cut	603	=cut
…		…
382	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
384		612
385	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	615	Crossfire TRT).
388		616
389	=over 4	617	=over 4
390		618
391	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
392		620
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
556		784
557	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		789
562	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	791	my $pkg = shift @arg;
564		792
565	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
595	}	823	}
596		824
597	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
598	} else {	826	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	828	}
601		829
602	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
603	}	831	}
604		832
…		…
606	if (ref $_[0]) {	834	if (ref $_[0]) {
607	_object_attach @_;	835	_object_attach @_;
608	} else {	836	} else {
609	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
610	}	838	}
		839	_recalc_want;
611	};	840	};
612		841
613	# all those should be optimised	842	# all those should be optimised
614	sub cf::attachable::detach {	843	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
619	reattach ($obj);	848	reattach ($obj);
620	} else {	849	} else {
621	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
622	}	851	}
		852	_recalc_want;
623	};	853	};
624		854
625	sub cf::attachable::attached {	855	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
627		857
…		…
642	";	872	";
643	die if $@;	873	die if $@;
644	}	874	}
645		875
646	our $override;	876	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		878
649	sub override {	879	sub override {
650	$override = 1;	880	$override = 1;
651	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
652	}	882	}
653		883
654	sub do_invoke {	884	sub do_invoke {
655	my $event = shift;	885	my $event = shift;
656	my $callbacks = shift;	886	my $callbacks = shift;
657		887
658	@invoke_results = ();	888	@INVOKE_RESULTS = ();
659		889
660	local $override;	890	local $override;
661		891
662	for (@$callbacks) {	892	for (@$callbacks) {
663	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
680		910
681	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
682		912
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		916
687	=back	917	=back
688		918
689	=cut	919	=cut
690		920
691	#############################################################################	921	#############################################################################
692	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
693		934
694	sub reattach {	935	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	937	my ($obj) = @_;
697		938
…		…
750	$filename, length $$rdata, scalar @$objs;	991	$filename, length $$rdata, scalar @$objs;
751		992
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	993	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	994	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	995	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	996	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	997	close $fh;
757		998
758	if (@$objs) {	999	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1000	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1001	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1002	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1003	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1004	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1005	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1006	aio_rename "$filename.pst~", "$filename.pst";
766	}	1007	}
767	} else {	1008	} else {
768	aio_unlink "$filename.pst";	1009	aio_unlink "$filename.pst";
…		…
800	or return;	1041	or return;
801	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
802	}	1043	}
803		1044
804	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1047	return ($data, $av);
807	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
808		1055
809	#############################################################################	1056	#############################################################################
810	# command handling &c	1057	# command handling &c
811		1058
812	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1073	}
827		1074
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1076
830	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
831		1082
832	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
833	called.	1084	called.
834		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
835	=cut	1097	=cut
836		1098
837	sub register_extcmd {	1099	sub register_extcmd {
838	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
839		1101
840	$EXTCMD{$name} = $cb;	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
841	}	1109	}
842		1110
843	cf::player->attach (	1111	cf::player->attach (
844	on_command => sub {	1112	on_command => sub {
845	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1122	cf::override;
855	},	1123	},
856	on_extcmd => sub {	1124	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
858		1126
859	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1128
861	if (ref $msg) {	1129	if (ref $msg) {
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
863	if (my %reply = $cb->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
864	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
870		1138
871	cf::override;	1139	cf::override;
872	},	1140	},
873	);	1141	);
874		1142
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
910	for my $ext (<$LIBDIR/*.ext>) {	1147	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1148	next unless -r $path;
912	eval {	1149
913	load_extension $ext;	1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
914	1	1207	}
915	} or warn "$ext not loaded: $@";	1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
916	}	1213	};
917	}	1214	}
918		1215
919	#############################################################################	1216	#############################################################################
920		1217
		1218	=back
		1219
921	=head2 CORE EXTENSIONS	1220	=head2 CORE EXTENSIONS
922		1221
923	Functions and methods that extend core crossfire objects.	1222	Functions and methods that extend core crossfire objects.
924		1223
925	=cut	1224	=cut
…		…
937	Returns the given player object, loading it if necessary (might block).	1236	Returns the given player object, loading it if necessary (might block).
938		1237
939	=cut	1238	=cut
940		1239
941	sub playerdir($) {	1240	sub playerdir($) {
942	cf::localdir	1241	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1242	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1243	}
948		1244
949	sub path($) {	1245	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1246	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1247
952	(playerdir $login) . "/$login.pl"	1248	(playerdir $login) . "/playerdata"
953	}	1249	}
954		1250
955	sub find_active($) {	1251	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1252	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1253	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1266	my $login = $_[0];
971		1267
972	my $guard = cf::lock_acquire "user_find:$login";	1268	my $guard = cf::lock_acquire "user_find:$login";
973		1269
974	$cf::PLAYER{$_[0]} || do {	1270	$cf::PLAYER{$_[0]} || do {
		1271	# rename old playerfiles to new ones
		1272	#TODO: remove when no longer required
		1273	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1274	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1275	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1276	aio_unlink +(playerdir $login) . "/$login.pl";
		1277
975	my $pl = load_pl path $login	1278	my $pl = load_pl path $login
976	or return;	1279	or return;
977	$cf::PLAYER{$login} = $pl	1280	$cf::PLAYER{$login} = $pl
978	}	1281	}
979	}	1282	}
…		…
1016		1319
1017	=cut	1320	=cut
1018		1321
1019	sub quit_character {	1322	sub quit_character {
1020	my ($pl) = @_;	1323	my ($pl) = @_;
		1324
		1325	my $name = $pl->ob->name;
1021		1326
1022	$pl->{deny_save} = 1;	1327	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1328	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1329
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1330	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1335	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1336	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1337	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1338	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1339	$pl->destroy;
		1340
		1341	my $prefix = qr<^~\Q$name\E/>;
		1342
		1343	# nuke player maps
		1344	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1345
1035	IO::AIO::aio_rmtree $temp;	1346	IO::AIO::aio_rmtree $temp;
		1347	}
		1348
		1349	=item $pl->kick
		1350
		1351	Kicks a player out of the game. This destroys the connection.
		1352
		1353	=cut
		1354
		1355	sub kick {
		1356	my ($pl, $kicker) = @_;
		1357
		1358	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1359	$pl->killer ("kicked");
		1360	$pl->ns->destroy;
1036	}	1361	}
1037		1362
1038	=item cf::player::list_logins	1363	=item cf::player::list_logins
1039		1364
1040	Returns am arrayref of all valid playernames in the system, can take a	1365	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1366	while and may block, so not sync_job-capable, ever.
1042		1367
1043	=cut	1368	=cut
1044		1369
1045	sub list_logins {	1370	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1371	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1372	or return [];
1048		1373
1049	my @logins;	1374	my @logins;
1050		1375
1051	for my $login (@$dirs) {	1376	for my $login (@$dirs) {
…		…
1068	=cut	1393	=cut
1069		1394
1070	sub maps($) {	1395	sub maps($) {
1071	my ($pl) = @_;	1396	my ($pl) = @_;
1072		1397
		1398	$pl = ref $pl ? $pl->ob->name : $pl;
		1399
1073	my $files = aio_readdir playerdir $pl	1400	my $files = aio_readdir playerdir $pl
1074	or return;	1401	or return;
1075		1402
1076	my @paths;	1403	my @paths;
1077		1404
1078	for (@$files) {	1405	for (@$files) {
1079	utf8::decode $_;	1406	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1407	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1408	next unless /^$PATH_SEP/o;
1082		1409
1083	s/\.map$//;	1410	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1411	}
1086		1412
1087	\@paths	1413	\@paths
1088	}	1414	}
1089		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1466	=item $player->ext_reply ($msgid, %msg)
1091		1467
1092	Sends an ext reply to the player.	1468	Sends an ext reply to the player.
1093		1469
1094	=cut	1470	=cut
1095		1471
1096	sub ext_reply($$$%) {	1472	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1473	my ($self, $id, %msg) = @_;
1098		1474
1099	$msg{msgid} = $id;	1475	$msg{msgid} = $id;
1100		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1477	}
1103		1478
1104	package cf;	1479	=item $player->ext_event ($type, %msg)
		1480
		1481	Sends an ext event to the client.
		1482
		1483	=cut
		1484
		1485	sub ext_event($$%) {
		1486	my ($self, $type, %msg) = @_;
		1487
		1488	$self->ns->ext_event ($type, %msg);
		1489	}
		1490
		1491	=head3 cf::region
		1492
		1493	=over 4
		1494
		1495	=cut
		1496
		1497	package cf::region;
		1498
		1499	=item cf::region::find_by_path $path
		1500
		1501	Tries to decuce the likely region for a map knowing only its path.
		1502
		1503	=cut
		1504
		1505	sub find_by_path($) {
		1506	my ($path) = @_;
		1507
		1508	my ($match, $specificity);
		1509
		1510	for my $region (list) {
		1511	if ($region->{match} && $path =~ $region->{match}) {
		1512	($match, $specificity) = ($region, $region->specificity)
		1513	if $region->specificity > $specificity;
		1514	}
		1515	}
		1516
		1517	$match
		1518	}
1105		1519
1106	=back	1520	=back
1107
1108		1521
1109	=head3 cf::map	1522	=head3 cf::map
1110		1523
1111	=over 4	1524	=over 4
1112		1525
…		…
1167	my ($self, $merge) = @_;	1580	my ($self, $merge) = @_;
1168		1581
1169	# we have to keep some variables in memory intact	1582	# we have to keep some variables in memory intact
1170	local $self->{path};	1583	local $self->{path};
1171	local $self->{load_path};	1584	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1585
1175	$self->SUPER::thawer_merge ($merge);	1586	$self->SUPER::thawer_merge ($merge);
1176	}	1587	}
1177		1588
1178	sub normalise {	1589	sub normalise {
1179	my ($path, $base) = @_;	1590	my ($path, $base) = @_;
		1591
		1592	$path = "$path"; # make sure its a string
		1593
		1594	$path =~ s/\.map$//;
1180		1595
1181	# map plan:	1596	# map plan:
1182	#	1597	#
1183	# /! non-realised random map exit (special hack!)	1598	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1599	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1636	$self->init; # pass $1 etc.
1222	return $self;	1637	return $self;
1223	}	1638	}
1224	}	1639	}
1225		1640
1226	Carp::carp "unable to resolve path '$path'.";	1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
1227	()	1642	()
1228	}	1643	}
1229		1644
1230	sub init {	1645	sub init {
1231	my ($self) = @_;	1646	my ($self) = @_;
…		…
1246		1661
1247	# the original (read-only) location	1662	# the original (read-only) location
1248	sub load_path {	1663	sub load_path {
1249	my ($self) = @_;	1664	my ($self) = @_;
1250		1665
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1666	"$MAPDIR/$self->{path}.map"
1252	}	1667	}
1253		1668
1254	# the temporary/swap location	1669	# the temporary/swap location
1255	sub save_path {	1670	sub save_path {
1256	my ($self) = @_;	1671	my ($self) = @_;
1257		1672
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1673	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1674	"$TMPDIR/$path.map"
1260	}	1675	}
1261		1676
1262	# the unique path, undef == no special unique path	1677	# the unique path, undef == no special unique path
1263	sub uniq_path {	1678	sub uniq_path {
1264	my ($self) = @_;	1679	my ($self) = @_;
1265		1680
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1681	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1682	"$UNIQUEDIR/$path"
1268	}	1683	}
1269		1684
1270	# and all this just because we cannot iterate over	1685	# and all this just because we cannot iterate over
1271	# all maps in C++...	1686	# all maps in C++...
1272	sub change_all_map_light {	1687	sub change_all_map_light {
…		…
1274		1689
1275	$_->change_map_light ($change)	1690	$_->change_map_light ($change)
1276	for grep $_->outdoor, values %cf::MAP;	1691	for grep $_->outdoor, values %cf::MAP;
1277	}	1692	}
1278		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
		1700	}
		1701
1279	sub unlink_save {	1702	sub unlink_save {
1280	my ($self) = @_;	1703	my ($self) = @_;
1281		1704
1282	utf8::encode (my $save = $self->save_path);	1705	utf8::encode (my $save = $self->save_path);
1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1706	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1286		1709
1287	sub load_header_from($) {	1710	sub load_header_from($) {
1288	my ($self, $path) = @_;	1711	my ($self, $path) = @_;
1289		1712
1290	utf8::encode $path;	1713	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1714	#aio_open $path, O_RDONLY, 0
1292	or return;	1715	# or return;
1293		1716
1294	$self->_load_header ($path)	1717	$self->_load_header ($path)
1295	or return;	1718	or return;
1296		1719
1297	$self->{load_path} = $path;	1720	$self->{load_path} = $path;
…		…
1339	$self->load_header_orig	1762	$self->load_header_orig
1340	or return;	1763	or return;
1341	$self->prepare_orig;	1764	$self->prepare_orig;
1342	}	1765	}
1343		1766
		1767	$self->{deny_reset} = 1
		1768	if $self->no_reset;
		1769
		1770	$self->default_region (cf::region::find_by_path $self->{path})
		1771	unless $self->default_region;
		1772
1344	1	1773	1
1345	}	1774	}
1346		1775
1347	sub find;	1776	sub find;
1348	sub find {	1777	sub find {
…		…
1360	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1361		1790
1362	$map->load_header	1791	$map->load_header
1363	or return;	1792	or return;
1364		1793
1365	if ($map->should_reset) {	1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1795	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1796	#$cf::WAIT_FOR_TICK->wait;
1368	$map->reset;	1797	$map->reset;
1369	undef $guard;	1798	undef $guard;
1370	$map = find $path	1799	return find $path;
1371	or return;
1372	}	1800	}
1373		1801
1374	$cf::MAP{$path} = $map	1802	$cf::MAP{$path} = $map
1375	}	1803	}
1376	}	1804	}
…		…
1379	sub post_load { }	1807	sub post_load { }
1380		1808
1381	sub load {	1809	sub load {
1382	my ($self) = @_;	1810	my ($self) = @_;
1383		1811
		1812	local $self->{deny_reset} = 1; # loading can take a long time
		1813
1384	my $path = $self->{path};	1814	my $path = $self->{path};
		1815
		1816	{
1385	my $guard = cf::lock_acquire "map_load:$path";	1817	my $guard = cf::lock_acquire "map_load:$path";
1386		1818
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1819	return if $self->in_memory != cf::MAP_SWAPPED;
1388		1820
1389	$self->in_memory (cf::MAP_LOADING);	1821	$self->in_memory (cf::MAP_LOADING);
1390		1822
1391	$self->alloc;	1823	$self->alloc;
1392		1824
1393	$self->pre_load;	1825	$self->pre_load;
1394
1395	$self->_load_objects ($self->{load_path}, 1)
1396	or return;
1397
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1399	if delete $self->{load_original};
1400
1401	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {
1404	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);
1406	}
1407	}
1408
1409	Coro::cede;
1410
1411	# now do the right thing for maps
1412	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;	1826	Coro::cede;
1419	$self->set_darkness_map;	1827
		1828	$self->_load_objects ($self->{load_path}, 1)
		1829	or return;
		1830
		1831	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1832	if delete $self->{load_original};
		1833
		1834	if (my $uniq = $self->uniq_path) {
		1835	utf8::encode $uniq;
		1836	if (aio_open $uniq, O_RDONLY, 0) {
		1837	$self->clear_unique_items;
		1838	$self->_load_objects ($uniq, 0);
		1839	}
		1840	}
		1841
		1842	Coro::cede;
		1843	# now do the right thing for maps
		1844	$self->link_multipart_objects;
1420	$self->difficulty ($self->estimate_difficulty)	1845	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	1846	unless $self->difficulty;
1422	Coro::cede;	1847	Coro::cede;
		1848
		1849	unless ($self->{deny_activate}) {
		1850	$self->decay_objects;
		1851	$self->fix_auto_apply;
		1852	$self->update_buttons;
		1853	Coro::cede;
		1854	$self->set_darkness_map;
		1855	Coro::cede;
1423	$self->activate;	1856	$self->activate;
		1857	}
		1858
		1859	$self->in_memory (cf::MAP_IN_MEMORY);
1424	}	1860	}
1425		1861
1426	$self->post_load;	1862	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	1863	}
1430		1864
1431	sub customise_for {	1865	sub customise_for {
1432	my ($self, $ob) = @_;	1866	my ($self, $ob) = @_;
1433		1867
1434	return find "~" . $ob->name . "/" . $self->{path}	1868	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	1869	if $self->per_player;
		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
1436		1873
1437	$self	1874	$self
1438	}	1875	}
1439		1876
1440	# find and load all maps in the 3x3 area around a map	1877	# find and load all maps in the 3x3 area around a map
…		…
1487		1924
1488	undef $MAP_PREFETCH{$path};	1925	undef $MAP_PREFETCH{$path};
1489	$MAP_PREFETCHER ||= cf::async {	1926	$MAP_PREFETCHER ||= cf::async {
1490	while (%MAP_PREFETCH) {	1927	while (%MAP_PREFETCH) {
1491	for my $path (keys %MAP_PREFETCH) {	1928	for my $path (keys %MAP_PREFETCH) {
1492	my $map = find $path	1929	if (my $map = find $path) {
1493	or next;
1494	$map->load;	1930	$map->load;
		1931	}
1495		1932
1496	delete $MAP_PREFETCH{$path};	1933	delete $MAP_PREFETCH{$path};
1497	}	1934	}
1498	}	1935	}
1499	undef $MAP_PREFETCHER;	1936	undef $MAP_PREFETCHER;
1500	};	1937	};
		1938	$MAP_PREFETCHER->prio (6);
1501		1939
1502	()	1940	()
1503	}	1941	}
1504		1942
1505	sub save {	1943	sub save {
…		…
1550		1988
1551	sub reset_at {	1989	sub reset_at {
1552	my ($self) = @_;	1990	my ($self) = @_;
1553		1991
1554	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1555	return 1e99 if $self->isa ("ext::map_per_player");#d#
1556	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1557		1994
1558	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1559	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1560		1997
…		…
1571	my ($self) = @_;	2008	my ($self) = @_;
1572		2009
1573	my $lock = cf::lock_acquire "map_data:$self->{path}";	2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		2011
1575	return if $self->players;	2012	return if $self->players;
1576	return if $self->isa ("ext::map_per_player");#d#
1577		2013
1578	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
		2015
		2016	$self->in_memory (cf::MAP_SWAPPED);
		2017
		2018	# need to save uniques path
		2019	unless ($self->{deny_save}) {
		2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2021
		2022	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2023	if $uniq;
		2024	}
1579		2025
1580	delete $cf::MAP{$self->path};	2026	delete $cf::MAP{$self->path};
1581		2027
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	$self->clear;	2028	$self->clear;
1584		2029
1585	$_->clear_links_to ($self) for values %cf::MAP;	2030	$_->clear_links_to ($self) for values %cf::MAP;
1586		2031
1587	$self->unlink_save;	2032	$self->unlink_save;
…		…
1606	$cf::MAP{$self->path} = $self;	2051	$cf::MAP{$self->path} = $self;
1607		2052
1608	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1609	}	2054	}
1610		2055
		2056	=item $maps = cf::map::tmp_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item $maps = cf::map::random_maps
		2075
		2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
		2078
		2079	=cut
		2080
		2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
1611	=item cf::map::unique_maps	2092	=item cf::map::unique_maps
1612		2093
1613	Returns an arrayref of paths of all shared maps that have	2094	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2095	instantiated unique items. May block.
1615		2096
1616	=cut	2097	=cut
1617		2098
1618	sub unique_maps() {	2099	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2100	[
1620	or return;	2101	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2102	utf8::decode $_;
1626	next if /\.pst$/;
1627	next unless /^$PATH_SEP/o;
1628
1629	s/\.map$//;	2103	/\.map$/
1630	push @paths, $_;	2104	? normalise $_
		2105	: ()
		2106	} @{ aio_readdir $UNIQUEDIR or [] }
1631	}	2107	]
1632
1633	\@paths
1634	}	2108	}
1635		2109
1636	package cf;	2110	package cf;
1637		2111
1638	=back	2112	=back
…		…
1684		2158
1685	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1686		2160
1687	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1688	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1689	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1690	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1691	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1692	}	2180	}
1693	}	2181	}
1694		2182
1695	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1696		2184
…		…
1729	=cut	2217	=cut
1730		2218
1731	sub link_map {	2219	sub link_map {
1732	unless ($LINK_MAP) {	2220	unless ($LINK_MAP) {
1733	$LINK_MAP = cf::map::find "{link}"	2221	$LINK_MAP = cf::map::find "{link}"
1734	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2222	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1735	$LINK_MAP->load;	2223	$LINK_MAP->load;
1736	}	2224	}
1737		2225
1738	$LINK_MAP	2226	$LINK_MAP
1739	}	2227	}
…		…
1744	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
1745		2233
1746	return if UNIVERSAL::isa $self->map, "ext::map_link";	2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
1747		2235
1748	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1749	if $self->map;	2237	if $self->map && $self->map->{path} ne "{link}";
1750		2238
1751	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1752	}	2240	}
1753		2241
1754	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1755	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1756		2246
1757	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1758		2248
1759	unless ($map) {	2249	unless ($map) {
1760	# restore original map position	2250	# restore original map position
…		…
1778	$map->load;	2268	$map->load;
1779	$map->load_diag;	2269	$map->load_diag;
1780		2270
1781	return unless $self->contr->active;	2271	return unless $self->contr->active;
1782	$self->activate_recursive;	2272	$self->activate_recursive;
		2273
		2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1783	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1784	}	2276	}
1785		2277
1786	cf::player->attach (	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1787	on_logout => sub {
1788	my ($pl) = @_;
1789		2279
1790	# abort map switching before logout	2280	Moves the player to the given map-path and coordinates by first freezing
1791	if ($pl->ob->{_link_pos}) {	2281	her, loading and preparing them map, calling the provided $check callback
1792	cf::sync_job {	2282	that has to return the map if sucecssful, and then unfreezes the player on
1793	$pl->ob->leave_link	2283	the new (success) or old (failed) map position. In either case, $done will
1794	};	2284	be called at the end of this process.
1795	}
1796	},
1797	on_login => sub {
1798	my ($pl) = @_;
1799		2285
1800	# try to abort aborted map switching on player login :)
1801	# should happen only on crashes
1802	if ($pl->ob->{_link_pos}) {
1803	$pl->ob->enter_link;
1804	(async {
1805	# we need this sleep as the login has a concurrent enter_exit running
1806	# and this sleep increases chances of the player not ending up in scorn
1807	$pl->ob->reply (undef,
1808	"There was an internal problem at your last logout, "
1809	. "the server will try to bring you to your intended destination in a second.",
1810	cf::NDI_RED);
1811	Coro::Timer::sleep 1;
1812	$pl->ob->leave_link;
1813	})->prio (2);
1814	}
1815	},
1816	);
1817
1818	=item $player_object->goto ($path, $x, $y)
1819
1820	=cut	2286	=cut
		2287
		2288	our $GOTOGEN;
1821		2289
1822	sub cf::object::player::goto {	2290	sub cf::object::player::goto {
1823	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1824		2295
1825	$self->enter_link;	2296	$self->enter_link;
1826		2297
1827	(async {	2298	(async {
		2299	my $map = eval {
1828	my $map = cf::map::find $path;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1829	$map = $map->customise_for ($self) if $map;	2303	$map = $map->customise_for ($self);
1830		2304	$map = $check->($map) if $check && $map;
1831	# warn "entering ", $map->path, " at ($x, $y)\n"	2305	} else {
1832	# if $map;
1833
1834	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
1835		2308
		2309	$map
		2310	};
		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
		2315	}
		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1836	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1837	})->prio (1);	2323	})->prio (1);
1838	}	2324	}
1839		2325
1840	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1841		2327
…		…
1870	# that depends on the exit object	2356	# that depends on the exit object
1871		2357
1872	my $rmp = parse_random_map_params $exit->msg;	2358	my $rmp = parse_random_map_params $exit->msg;
1873		2359
1874	if ($exit->map) {	2360	if ($exit->map) {
1875	$rmp->{region} = $exit->map->region_name;	2361	$rmp->{region} = $exit->region->name;
1876	$rmp->{origin_map} = $exit->map->path;	2362	$rmp->{origin_map} = $exit->map->path;
1877	$rmp->{origin_x} = $exit->x;	2363	$rmp->{origin_x} = $exit->x;
1878	$rmp->{origin_y} = $exit->y;	2364	$rmp->{origin_y} = $exit->y;
1879	}	2365	}
1880		2366
1881	$rmp->{random_seed} ||= $exit->random_seed;	2367	$rmp->{random_seed} ||= $exit->random_seed;
1882		2368
1883	my $data = cf::to_json $rmp;	2369	my $data = cf::to_json $rmp;
1884	my $md5 = Digest::MD5::md5_hex $data;	2370	my $md5 = Digest::MD5::md5_hex $data;
1885	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2371	my $meta = "$RANDOMDIR/$md5.meta";
1886		2372
1887	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2373	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1888	aio_write $fh, 0, (length $data), $data, 0;	2374	aio_write $fh, 0, (length $data), $data, 0;
1889	undef $fh;	2375	undef $fh;
1890	aio_rename "$meta~", $meta;	2376	aio_rename "$meta~", $meta;
…		…
1897	sub cf::object::player::enter_exit {	2383	sub cf::object::player::enter_exit {
1898	my ($self, $exit) = @_;	2384	my ($self, $exit) = @_;
1899		2385
1900	return unless $self->type == cf::PLAYER;	2386	return unless $self->type == cf::PLAYER;
1901		2387
		2388	if ($exit->slaying eq "/!") {
		2389	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2390	# the problem is that $exit might not survive long enough
		2391	# so it needs to be done right now, right here
		2392	cf::sync_job { prepare_random_map $exit };
		2393	}
		2394
		2395	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2396	my $hp = $exit->stats->hp;
		2397	my $sp = $exit->stats->sp;
		2398
1902	$self->enter_link;	2399	$self->enter_link;
		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
1903		2404
1904	(async {	2405	(async {
1905	$self->deactivate_recursive; # just to be sure	2406	$self->deactivate_recursive; # just to be sure
1906	unless (eval {	2407	unless (eval {
1907	prepare_random_map $exit	2408	$self->goto ($slaying, $hp, $sp);
1908	if $exit->slaying eq "/!";
1909
1910	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1911	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1912		2409
1913	1;	2410	1;
1914	}) {	2411	}) {
1915	$self->message ("Something went wrong deep within the crossfire server. "	2412	$self->message ("Something went wrong deep within the crossfire server. "
1916	. "I'll try to bring you back to the map you were before. "	2413	. "I'll try to bring you back to the map you were before. "
1917	. "Please report this to the dungeon master!",	2414	. "Please report this to the dungeon master!",
1918	cf::NDI_UNIQUE | cf::NDI_RED);	2415	cf::NDI_UNIQUE | cf::NDI_RED);
1919		2416
1920	warn "ERROR in enter_exit: $@";	2417	warn "ERROR in enter_exit: $@";
1921	$self->leave_link;	2418	$self->leave_link;
1922	}	2419	}
1923	})->prio (1);	2420	})->prio (1);
…		…
1936		2433
1937	sub cf::client::send_drawinfo {	2434	sub cf::client::send_drawinfo {
1938	my ($self, $text, $flags) = @_;	2435	my ($self, $text, $flags) = @_;
1939		2436
1940	utf8::encode $text;	2437	utf8::encode $text;
1941	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1942	}	2439	}
1943		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	return unless @extra || length $msg;
		2456
		2457	$color &= ~cf::NDI_UNIQUE; # just in case...
		2458
		2459	if (ref $channel) {
		2460	# send meta info to client, if not yet sent
		2461	unless (exists $self->{channel}{$channel->{id}}) {
		2462	$self->{channel}{$channel->{id}} = $channel;
		2463	$self->ext_event (channel_info => %$channel);
		2464	}
		2465
		2466	$channel = $channel->{id};
		2467	}
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
		2493	=item $client->ext_event ($type, %msg)
		2494
		2495	Sends an ext event to the client.
		2496
		2497	=cut
		2498
		2499	sub cf::client::ext_event($$%) {
		2500	my ($self, $type, %msg) = @_;
		2501
		2502	return unless $self->extcmd;
		2503
		2504	$msg{msgtype} = "event_$type";
		2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2506	}
1944		2507
1945	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
1946		2509
1947	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
1948	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1949	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1950		2513
1951	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
1952	reliable at some point in the future.	2515	become reliable at some point in the future.
1953		2516
1954	=cut	2517	=cut
1955		2518
1956	sub cf::client::query {	2519	sub cf::client::query {
1957	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
1965	utf8::encode $text;	2528	utf8::encode $text;
1966	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1967		2530
1968	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
1969	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
1970	}	2535	}
1971		2536
1972	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
1973	on_reply => sub {	2543	on_reply => sub {
1974	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
1975		2545
1976	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
1977	# get handled first	2547	# get handled first
1978	my $queue = delete $ns->{query_queue}	2548	my $queue = delete $ns->{query_queue}
1979	or return; # be conservative, not sure how that can happen, but we saw a crash here	2549	or return; # be conservative, not sure how that can happen, but we saw a crash here
1980		2550
1981	(shift @$queue)->[1]->($msg);	2551	(shift @$queue)->[1]->($msg);
		2552	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1982		2553
1983	push @{ $ns->{query_queue} }, @$queue;	2554	push @{ $ns->{query_queue} }, @$queue;
1984		2555
1985	if (@{ $ns->{query_queue} } == @$queue) {	2556	if (@{ $ns->{query_queue} } == @$queue) {
1986	if (@$queue) {	2557	if (@$queue) {
…		…
1988	} else {	2559	} else {
1989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1990	}	2561	}
1991	}	2562	}
1992	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
1993	);	2582	);
1994		2583
1995	=item $client->async (\&cb)	2584	=item $client->async (\&cb)
1996		2585
1997	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
…		…
2044		2633
2045	# here we export the classes and methods available to script code	2634	# here we export the classes and methods available to script code
2046		2635
2047	=pod	2636	=pod
2048		2637
2049	The following fucntions and emthods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
2050		2639
2051	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
2052	cf::object::player player	2644	cf::object::player
2053	cf::player peaceful	2645	player
2054	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
2055		2652
2056	=cut	2653	=cut
2057		2654
2058	for (	2655	for (
2059	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
2060	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
2061	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
2062	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
2063	) {	2661	) {
2064	no strict 'refs';	2662	no strict 'refs';
…		…
2135	=back	2733	=back
2136		2734
2137	=cut	2735	=cut
2138		2736
2139	#############################################################################	2737	#############################################################################
		2738	# the server's init and main functions
2140		2739
2141	=head2 EXTENSION DATABASE SUPPORT	2740	sub load_facedata($) {
		2741	my ($path) = @_;
2142		2742
2143	Crossfire maintains a very simple database for extension use. It can	2743	warn "loading facedata from $path\n";
2144	currently store anything that can be serialised using Storable, which
2145	excludes objects.
2146		2744
2147	The parameter C<$family> should best start with the name of the extension	2745	my $facedata;
2148	using it, it should be unique.	2746	0 < aio_load $path, $facedata
		2747	or die "$path: $!";
2149		2748
2150	=over 4	2749	$facedata = Coro::Storable::thaw $facedata;
2151		2750
2152	=item $hashref = cf::db_get $family	2751	$facedata->{version} == 2
		2752	or cf::cleanup "$path: version mismatch, cannot proceed.";
2153		2753
2154	Return a hashref for use by the extension C<$family>, which can be
2155	modified. After modifications, you have to call C<cf::db_dirty> or
2156	C<cf::db_sync>.
2157
2158	=item $value = cf::db_get $family => $key
2159
2160	Returns a single value from the database
2161
2162	=item cf::db_put $family => $hashref
2163
2164	Stores the given family hashref into the database. Updates are delayed, if
2165	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2166
2167	=item cf::db_put $family => $key => $value
2168
2169	Stores the given C<$value> in the family hash. Updates are delayed, if you
2170	want the data to be synced to disk immediately, use C<cf::db_sync>.
2171
2172	=item cf::db_dirty
2173
2174	Marks the database as dirty, to be updated at a later time.
2175
2176	=item cf::db_sync
2177
2178	Immediately write the database to disk I<if it is dirty>.
2179
2180	=cut
2181
2182	our $DB;
2183
2184	{
2185	my $path = cf::localdir . "/database.pst";
2186
2187	sub db_load() {
2188	$DB = stat $path ? Storable::retrieve $path : { };
2189	}	2754	{
		2755	my $faces = $facedata->{faceinfo};
2190		2756
2191	my $pid;	2757	while (my ($face, $info) = each %$faces) {
		2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
		2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2192		2763
2193	sub db_save() {	2764	cf::cede_to_tick;
2194	waitpid $pid, 0 if $pid;
2195	if (0 == ($pid = fork)) {
2196	$DB->{_meta}{version} = 1;
2197	Storable::nstore $DB, "$path~";
2198	rename "$path~", $path;
2199	cf::_exit 0 if defined $pid;
2200	}
2201	}
2202
2203	my $dirty;
2204
2205	sub db_sync() {
2206	db_save if $dirty;
2207	undef $dirty;
2208	}
2209
2210	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2211	db_sync;
2212	});
2213
2214	sub db_dirty() {
2215	$dirty = 1;
2216	$idle->start;
2217	}
2218
2219	sub db_get($;$) {
2220	@_ >= 2
2221	? $DB->{$_[0]}{$_[1]}
2222	: ($DB->{$_[0]} ||= { })
2223	}
2224
2225	sub db_put($$;$) {
2226	if (@_ >= 3) {
2227	$DB->{$_[0]}{$_[1]} = $_[2];
2228	} else {
2229	$DB->{$_[0]} = $_[1];
2230	}
2231	db_dirty;
2232	}
2233
2234	cf::global->attach (
2235	prio => 10000,
2236	on_cleanup => sub {
2237	db_sync;
2238	},	2765	}
2239	);
2240	}
2241		2766
2242	#############################################################################	2767	while (my ($face, $info) = each %$faces) {
2243	# the server's main()	2768	next unless $info->{smooth};
		2769	my $idx = cf::face::find $face
		2770	or next;
		2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
		2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2774	} else {
		2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2776	}
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	{
		2783	my $anims = $facedata->{animinfo};
		2784
		2785	while (my ($anim, $info) = each %$anims) {
		2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2787	cf::cede_to_tick;
		2788	}
		2789
		2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
		2821	}
		2822
		2823	1
		2824	}
		2825
		2826	sub reload_regions {
		2827	load_resource_file "$MAPDIR/regions"
		2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
		2834	}
		2835
		2836	sub reload_facedata {
		2837	load_facedata "$DATADIR/facedata"
		2838	or die "unable to load facedata\n";
		2839	}
		2840
		2841	sub reload_archetypes {
		2842	load_resource_file "$DATADIR/archetypes"
		2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
		2849	}
		2850
		2851	sub reload_treasures {
		2852	load_resource_file "$DATADIR/treasures"
		2853	or die "unable to load treasurelists\n";
		2854	}
		2855
		2856	sub reload_resources {
		2857	warn "reloading resource files...\n";
		2858
		2859	reload_regions;
		2860	reload_facedata;
		2861	#reload_archetypes;#d#
		2862	reload_archetypes;
		2863	reload_treasures;
		2864
		2865	warn "finished reloading resource files\n";
		2866	}
		2867
		2868	sub init {
		2869	reload_resources;
		2870	}
2244		2871
2245	sub cfg_load {	2872	sub cfg_load {
2246	open my $fh, "<:utf8", cf::confdir . "/config"	2873	open my $fh, "<:utf8", "$CONFDIR/config"
2247	or return;	2874	or return;
2248		2875
2249	local $/;	2876	local $/;
2250	*CFG = YAML::Syck::Load <$fh>;	2877	*CFG = YAML::Syck::Load <$fh>;
2251		2878
…		…
2271	Event::one_event;	2898	Event::one_event;
2272	})->prio (Coro::PRIO_MAX);	2899	})->prio (Coro::PRIO_MAX);
2273	};	2900	};
2274		2901
2275	cfg_load;	2902	cfg_load;
2276	db_load;	2903	db_init;
2277	load_extensions;	2904	load_extensions;
2278		2905
2279	$TICK_WATCHER->start;	2906	$TICK_WATCHER->start;
2280	Event::loop;	2907	Event::loop;
2281	}	2908	}
…		…
2285		2912
2286	# install some emergency cleanup handlers	2913	# install some emergency cleanup handlers
2287	BEGIN {	2914	BEGIN {
2288	for my $signal (qw(INT HUP TERM)) {	2915	for my $signal (qw(INT HUP TERM)) {
2289	Event->signal (	2916	Event->signal (
		2917	reentrant => 0,
2290	data => WF_AUTOCANCEL,	2918	data => WF_AUTOCANCEL,
2291	signal => $signal,	2919	signal => $signal,
		2920	prio => 0,
2292	cb => sub {	2921	cb => sub {
2293	cf::cleanup "SIG$signal";	2922	cf::cleanup "SIG$signal";
2294	},	2923	},
2295	);	2924	);
2296	}	2925	}
		2926	}
		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
2297	}	2964	}
2298		2965
2299	sub emergency_save() {	2966	sub emergency_save() {
2300	my $freeze_guard = cf::freeze_mainloop;	2967	my $freeze_guard = cf::freeze_mainloop;
2301		2968
…		…
2318	my $map = $cf::MAP{$path} or next;	2985	my $map = $cf::MAP{$path} or next;
2319	$map->valid or next;	2986	$map->valid or next;
2320	$map->save;	2987	$map->save;
2321	}	2988	}
2322	warn "end emergency map save\n";	2989	warn "end emergency map save\n";
		2990
		2991	warn "begin emergency database checkpoint\n";
		2992	BDB::db_env_txn_checkpoint $DB_ENV;
		2993	warn "end emergency database checkpoint\n";
2323	};	2994	};
2324		2995
2325	warn "leave emergency perl save\n";	2996	warn "leave emergency perl save\n";
2326	}	2997	}
2327		2998
		2999	sub post_cleanup {
		3000	my ($make_core) = @_;
		3001
		3002	warn Carp::longmess "post_cleanup backtrace"
		3003	if $make_core;
		3004	}
		3005
2328	sub reload() {	3006	sub do_reload_perl() {
2329	# can/must only be called in main	3007	# can/must only be called in main
2330	if ($Coro::current != $Coro::main) {	3008	if ($Coro::current != $Coro::main) {
2331	warn "can only reload from main coroutine";	3009	warn "can only reload from main coroutine";
2332	return;	3010	return;
2333	}	3011	}
2334		3012
2335	warn "reloading...";	3013	warn "reloading...";
2336		3014
2337	warn "cancelling server ticker";	3015	warn "entering sync_job";
2338	$TICK_WATCHER->cancel;
2339		3016
		3017	cf::sync_job {
		3018	cf::write_runtime; # external watchdog should not bark
2340	cf::emergency_save;	3019	cf::emergency_save;
		3020	cf::write_runtime; # external watchdog should not bark
2341		3021
2342	eval {	3022	warn "syncing database to disk";
		3023	BDB::db_env_txn_checkpoint $DB_ENV;
		3024
2343	# if anything goes wrong in here, we should simply crash as we already saved	3025	# if anything goes wrong in here, we should simply crash as we already saved
2344
2345	warn "syncing database to disk";
2346	cf::db_sync;
2347		3026
2348	warn "cancelling all WF_AUTOCANCEL watchers";	3027	warn "cancelling all WF_AUTOCANCEL watchers";
2349	for (Event::all_watchers) {	3028	for (Event::all_watchers) {
2350	$_->cancel if $_->data & WF_AUTOCANCEL;	3029	$_->cancel if $_->data & WF_AUTOCANCEL;
2351	}	3030	}
2352		3031
2353	warn "flushing outstanding aio requests";	3032	warn "flushing outstanding aio requests";
2354	for (;;) {	3033	for (;;) {
		3034	BDB::flush;
2355	IO::AIO::flush;	3035	IO::AIO::flush;
2356	Coro::cede;	3036	Coro::cede;
2357	last unless IO::AIO::nreqs;	3037	last unless IO::AIO::nreqs || BDB::nreqs;
2358	warn "iterate...";	3038	warn "iterate...";
2359	}	3039	}
		3040
		3041	++$RELOAD;
2360		3042
2361	warn "cancelling all extension coros";	3043	warn "cancelling all extension coros";
2362	$_->cancel for values %EXT_CORO;	3044	$_->cancel for values %EXT_CORO;
2363	%EXT_CORO = ();	3045	%EXT_CORO = ();
2364		3046
2365	warn "removing commands";	3047	warn "removing commands";
2366	%COMMAND = ();	3048	%COMMAND = ();
2367		3049
2368	warn "removing ext commands";	3050	warn "removing ext/exti commands";
2369	%EXTCMD = ();	3051	%EXTCMD = ();
		3052	%EXTICMD = ();
2370		3053
2371	warn "unloading/nuking all extensions";	3054	warn "unloading/nuking all extensions";
2372	for my $pkg (@EXTS) {	3055	for my $pkg (@EXTS) {
2373	warn "... unloading $pkg";	3056	warn "... unloading $pkg";
2374		3057
…		…
2404	Symbol::delete_package "safe::$_"	3087	Symbol::delete_package "safe::$_"
2405	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3088	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2406		3089
2407	warn "unloading cf.pm \"a bit\"";	3090	warn "unloading cf.pm \"a bit\"";
2408	delete $INC{"cf.pm"};	3091	delete $INC{"cf.pm"};
		3092	delete $INC{"cf/pod.pm"};
2409		3093
2410	# don't, removes xs symbols, too,	3094	# don't, removes xs symbols, too,
2411	# and global variables created in xs	3095	# and global variables created in xs
2412	#Symbol::delete_package __PACKAGE__;	3096	#Symbol::delete_package __PACKAGE__;
2413		3097
…		…
2417	require cf;	3101	require cf;
2418	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3102	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2419		3103
2420	warn "loading config and database again";	3104	warn "loading config and database again";
2421	cf::cfg_load;	3105	cf::cfg_load;
2422	cf::db_load;
2423		3106
2424	warn "loading extensions";	3107	warn "loading extensions";
2425	cf::load_extensions;	3108	cf::load_extensions;
2426		3109
2427	warn "reattaching attachments to objects/players";	3110	warn "reattaching attachments to objects/players";
2428	_global_reattach;	3111	_global_reattach; # objects, sockets
2429	warn "reattaching attachments to maps";	3112	warn "reattaching attachments to maps";
2430	reattach $_ for values %MAP;	3113	reattach $_ for values %MAP;
		3114	warn "reattaching attachments to players";
		3115	reattach $_ for values %PLAYER;
2431		3116
2432	warn "restarting server ticker";	3117	warn "leaving sync_job";
2433		3118
2434	$TICK_WATCHER->start;	3119	1
2435	};	3120	} or do {
2436
2437	if ($@) {
2438	warn $@;	3121	warn $@;
2439	warn "error while reloading, exiting.";	3122	warn "error while reloading, exiting.";
2440	exit 1;	3123	exit 1;
2441	}	3124	};
2442		3125
2443	warn "reloaded";	3126	warn "reloaded";
2444	};	3127	};
2445		3128
2446	our $RELOAD_WATCHER; # used only during reload	3129	our $RELOAD_WATCHER; # used only during reload
2447		3130
		3131	sub reload_perl() {
		3132	# doing reload synchronously and two reloads happen back-to-back,
		3133	# coro crashes during coro_state_free->destroy here.
		3134
		3135	$RELOAD_WATCHER ||= Event->timer (
		3136	reentrant => 0,
		3137	after => 0,
		3138	data => WF_AUTOCANCEL,
		3139	cb => sub {
		3140	do_reload_perl;
		3141	undef $RELOAD_WATCHER;
		3142	},
		3143	);
		3144	}
		3145
2448	register_command "reload" => sub {	3146	register_command "reload" => sub {
2449	my ($who, $arg) = @_;	3147	my ($who, $arg) = @_;
2450		3148
2451	if ($who->flag (FLAG_WIZ)) {	3149	if ($who->flag (FLAG_WIZ)) {
2452	$who->message ("reloading server.");	3150	$who->message ("reloading server.");
2453		3151	async { reload_perl };
2454	# doing reload synchronously and two reloads happen back-to-back,
2455	# coro crashes during coro_state_free->destroy here.
2456
2457	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2458	reload;
2459	undef $RELOAD_WATCHER;
2460	});
2461	}	3152	}
2462	};	3153	};
2463		3154
2464	unshift @INC, $LIBDIR;	3155	unshift @INC, $LIBDIR;
2465		3156
2466	my $bug_warning = 0;	3157	my $bug_warning = 0;
2467		3158
		3159	our @WAIT_FOR_TICK;
		3160	our @WAIT_FOR_TICK_BEGIN;
		3161
		3162	sub wait_for_tick {
		3163	return unless $TICK_WATCHER->is_active;
		3164	return if $Coro::current == $Coro::main;
		3165
		3166	my $signal = new Coro::Signal;
		3167	push @WAIT_FOR_TICK, $signal;
		3168	$signal->wait;
		3169	}
		3170
		3171	sub wait_for_tick_begin {
		3172	return unless $TICK_WATCHER->is_active;
		3173	return if $Coro::current == $Coro::main;
		3174
		3175	my $signal = new Coro::Signal;
		3176	push @WAIT_FOR_TICK_BEGIN, $signal;
		3177	$signal->wait;
		3178	}
		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2468	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2469	reentrant => 0,	3183	reentrant => 0,
2470	parked => 1,	3184	parked => 1,
2471	prio => 0,	3185	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
…		…
2476	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3190	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2477	unless ++$bug_warning > 10;	3191	unless ++$bug_warning > 10;
2478	return;	3192	return;
2479	}	3193	}
2480		3194
2481	$NOW = Event::time;	3195	$NOW = $tick_start = Event::time;
2482		3196
2483	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
		3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3220	};
		3221
2484	$RUNTIME += $TICK;	3222	$RUNTIME += $TICK;
2485	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2486		3224
2487	$WAIT_FOR_TICK->broadcast;	3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2488	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3226	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3227	Coro::async_pool {
		3228	write_runtime
		3229	or warn "ERROR: unable to write runtime file: $!";
		3230	};
		3231	}
		3232
		3233	# my $AFTER = Event::time;
		3234	# warn $AFTER - $NOW;#d#
		3235
		3236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3237	$sig->send;
		3238	}
		3239	while (my $sig = shift @WAIT_FOR_TICK) {
		3240	$sig->send;
		3241	}
		3242
		3243	$NOW = Event::time;
2489		3244
2490	# if we are delayed by four ticks or more, skip them all	3245	# if we are delayed by four ticks or more, skip them all
2491	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3246	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2492		3247
2493	$TICK_WATCHER->at ($NEXT_TICK);	3248	$TICK_WATCHER->at ($NEXT_TICK);
2494	$TICK_WATCHER->start;	3249	$TICK_WATCHER->start;
		3250
		3251	$LOAD = ($NOW - $tick_start) / $TICK;
		3252	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3253
		3254	_post_tick;
		3255
		3256
2495	},	3257	},
2496	);	3258	);
2497		3259
		3260	{
		3261	BDB::max_poll_time $TICK * 0.1;
		3262	$BDB_POLL_WATCHER = Event->io (
		3263	reentrant => 0,
		3264	fd => BDB::poll_fileno,
		3265	poll => 'r',
		3266	prio => 0,
		3267	data => WF_AUTOCANCEL,
		3268	cb => \&BDB::poll_cb,
		3269	);
		3270	BDB::min_parallel 8;
		3271
		3272	BDB::set_sync_prepare {
		3273	my $status;
		3274	my $current = $Coro::current;
		3275	(
		3276	sub {
		3277	$status = $!;
		3278	$current->ready; undef $current;
		3279	},
		3280	sub {
		3281	Coro::schedule while defined $current;
		3282	$! = $status;
		3283	},
		3284	)
		3285	};
		3286
		3287	unless ($DB_ENV) {
		3288	$DB_ENV = BDB::db_env_create;
		3289
		3290	cf::sync_job {
		3291	eval {
		3292	BDB::db_env_open
		3293	$DB_ENV,
		3294	$BDBDIR,
		3295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3297	0666;
		3298
		3299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3300
		3301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3302	$DB_ENV->set_lk_detect;
		3303	};
		3304
		3305	cf::cleanup "db_env_open(db): $@" if $@;
		3306	};
		3307	}
		3308	}
		3309
		3310	{
		3311	IO::AIO::min_parallel 8;
		3312
		3313	undef $Coro::AIO::WATCHER;
2498	IO::AIO::max_poll_time $TICK * 0.2;	3314	IO::AIO::max_poll_time $TICK * 0.1;
2499
2500	$AIO_POLL_WATCHER = Event->io (	3315	$AIO_POLL_WATCHER = Event->io (
2501	fd => IO::AIO::poll_fileno,	3316	reentrant => 0,
2502	poll => 'r',
2503	prio => 5,
2504	data => WF_AUTOCANCEL,
2505	cb => \&IO::AIO::poll_cb,
2506	);
2507
2508	$WRITE_RUNTIME_WATCHER = Event->timer (
2509	data => WF_AUTOCANCEL,	3317	data => WF_AUTOCANCEL,
2510	after => 1,	3318	fd => IO::AIO::poll_fileno,
2511	interval => 10,	3319	poll => 'r',
2512	prio => 6, # keep it lowest so it acts like a watchdog	3320	prio => 6,
2513	cb => Coro::unblock_sub {	3321	cb => \&IO::AIO::poll_cb,
2514	write_runtime	3322	);
2515	or warn "ERROR: unable to write runtime file: $!";	3323	}
		3324
		3325	my $_log_backtrace;
		3326
		3327	sub _log_backtrace {
		3328	my ($msg, @addr) = @_;
		3329
		3330	$msg =~ s/\n//;
		3331
		3332	# limit the # of concurrent backtraces
		3333	if ($_log_backtrace < 2) {
		3334	++$_log_backtrace;
		3335	async {
		3336	my @bt = fork_call {
		3337	@addr = map { sprintf "%x", $_ } @addr;
		3338	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3339	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3340	or die "addr2line: $!";
		3341
		3342	my @funcs;
		3343	my @res = <$fh>;
		3344	chomp for @res;
		3345	while (@res) {
		3346	my ($func, $line) = splice @res, 0, 2, ();
		3347	push @funcs, "[$func] $line";
		3348	}
		3349
		3350	@funcs
		3351	};
		3352
		3353	LOG llevInfo, "[ABT] $msg\n";
		3354	LOG llevInfo, "[ABT] $_\n" for @bt;
		3355	--$_log_backtrace;
		3356	};
		3357	} else {
		3358	LOG llevInfo, "[ABT] $msg\n";
		3359	LOG llevInfo, "[ABT] [suppressed]\n";
2516	},	3360	}
2517	);	3361	}
		3362
		3363	# load additional modules
		3364	use cf::pod;
2518		3365
2519	END { cf::emergency_save }	3366	END { cf::emergency_save }
2520		3367
2521	1	3368	1
2522		3369

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