[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 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;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
…		…
52	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
54		56
55	our $RELOAD; # number of reloads so far	57	our $RELOAD; # number of reloads so far
56	our @EVENT;	58	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		59
59	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	73	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	76	our $NEXT_TICK;
64	our $NOW;	77	our $NOW;
…		…
73	our $RUNTIME;	86	our $RUNTIME;
74		87
75	our %PLAYER; # all users	88	our %PLAYER; # all users
76	our %MAP; # all maps	89	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK \|\|= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE \|\|= new Coro::Signal;
83		91
84	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
87	binmode STDOUT;	99	binmode STDOUT;
88	binmode STDERR;	100	binmode STDERR;
89		101
90	# read virtual server time, if available	102	# read virtual server time, if available
91	unless ($RUNTIME \|\| !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {
92	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
93	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
94	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
95	}	107	}
96		108
97	mkdir cf::localdir;	109	mkdir $_
98	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir cf::localdir . "/" . cf::tmpdir;
100	mkdir cf::localdir . "/" . cf::uniquedir;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		111
104	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
105		113
106	sub cf::map::normalise;	114	sub cf::map::normalise;
107		115
…		…
118	=item $cf::RUNTIME	126	=item $cf::RUNTIME
119		127
120	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
121	every server tick.	129	every server tick.
122		130
123	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
124		134
125	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
126	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
127		139
128	=item $cf::NOW	140	=item $cf::NOW
129		141
130	The time of the last (current) server tick.	142	The time of the last (current) server tick.
131		143
132	=item $cf::TICK	144	=item $cf::TICK
133		145
134	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
135		157
136	=item %cf::CFG	158	=item %cf::CFG
137		159
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
139	from wherever your confdir points to.	161	from wherever your confdir points to.
140		162
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		164
143	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
144	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
145	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
146	window of cpu time available, or simply to synchronise to the server tick.
147		168
148	=back	169	=back
149		170
150	=cut	171	=cut
151		172
152	BEGIN {	173	BEGIN {
153	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	175	my $msg = join "", @_;
155	utf8::encode $msg;
156		176
157	$msg .= "\n"	177	$msg .= "\n"
158	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
159		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
160	LOG llevError, $msg;	183	LOG llevError, $msg;
161	};	184	};
162	}	185	}
163		186
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
234	returned.	257	returned.
235		258
236	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
238		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
239	=cut	266	=cut
240		267
241	our %LOCK;	268	our %LOCK;
242		269
243	sub lock_wait($) {	270	sub lock_wait($) {
…		…
260		287
261	Coro::guard {	288	Coro::guard {
262	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
264	}	291	}
		292	}
		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
265	}	298	}
266		299
267	sub freeze_mainloop {	300	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
269		302
…		…
299		332
300	sub sync_job(&) {	333	sub sync_job(&) {
301	my ($job) = @_;	334	my ($job) = @_;
302		335
303	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
304	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
306		341
307	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
319		354
320	while ($busy) {	355	while ($busy) {
321	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
322	}	357	}
323		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError \| logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
324	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
325	} else {	367	} else {
326	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
327		369
328	$job->()	370	$job->()
…		…
348		390
349	$coro	391	$coro
350	}	392	}
351		393
352	sub write_runtime {	394	sub write_runtime {
		395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
353	my $guard = cf::lock_acquire "write_runtime";	404	my $guard = cf::lock_acquire "write_runtime";
354
355	my $runtime = cf::localdir . "/runtime";
356		405
357	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
358	or return;	407	or return;
359		408
360	my $value = $cf::RUNTIME + 90 + 10;	409	my $value = $cf::RUNTIME + 90 + 10;
…		…
366		415
367	# always fsync - this file is important	416	# always fsync - this file is important
368	aio_fsync $fh	417	aio_fsync $fh
369	and return;	418	and return;
370		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
371	close $fh	423	close $fh
372	or return;	424	or return;
373		425
374	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
375	and return;	427	and return;
		428
		429	warn "runtime file written.\n";#d#
376		430
377	1	431	1
378	}	432	}
379		433
380	=item cf::datalog type => key => value, ...	434	=item cf::datalog type => key => value, ...
…		…
573	$registry = $CB_TYPE[$object_type] \|\|= [];	627	$registry = $CB_TYPE[$object_type] \|\|= [];
574		628
575	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
579		633
580	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	635	my $pkg = shift @arg;
582		636
583	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
624	if (ref $_[0]) {	678	if (ref $_[0]) {
625	_object_attach @_;	679	_object_attach @_;
626	} else {	680	} else {
627	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
628	}	682	}
		683	_recalc_want;
629	};	684	};
630		685
631	# all those should be optimised	686	# all those should be optimised
632	sub cf::attachable::detach {	687	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
637	reattach ($obj);	692	reattach ($obj);
638	} else {	693	} else {
639	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
640	}	695	}
		696	_recalc_want;
641	};	697	};
642		698
643	sub cf::attachable::attached {	699	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
645		701
…		…
955	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
956		1012
957	=cut	1013	=cut
958		1014
959	sub playerdir($) {	1015	sub playerdir($) {
960	cf::localdir	1016	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1018	}
966		1019
967	sub path($) {	1020	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1141	while and may block, so not sync_job-capable, ever.
1089		1142
1090	=cut	1143	=cut
1091		1144
1092	sub list_logins {	1145	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1146	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1147	or return [];
1095		1148
1096	my @logins;	1149	my @logins;
1097		1150
1098	for my $login (@$dirs) {	1151	for my $login (@$dirs) {
…		…
1336		1389
1337	# the original (read-only) location	1390	# the original (read-only) location
1338	sub load_path {	1391	sub load_path {
1339	my ($self) = @_;	1392	my ($self) = @_;
1340		1393
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1394	"$MAPDIR/$self->{path}.map"
1342	}	1395	}
1343		1396
1344	# the temporary/swap location	1397	# the temporary/swap location
1345	sub save_path {	1398	sub save_path {
1346	my ($self) = @_;	1399	my ($self) = @_;
1347		1400
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1402	"$TMPDIR/$path.map"
1350	}	1403	}
1351		1404
1352	# the unique path, undef == no special unique path	1405	# the unique path, undef == no special unique path
1353	sub uniq_path {	1406	sub uniq_path {
1354	my ($self) = @_;	1407	my ($self) = @_;
1355		1408
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1410	"$UNIQUEDIR/$path"
1358	}	1411	}
1359		1412
1360	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1361	# all maps in C++...	1414	# all maps in C++...
1362	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1474	my ($self) = @_;	1527	my ($self) = @_;
1475		1528
1476	local $self->{deny_reset} = 1; # loading can take a long time	1529	local $self->{deny_reset} = 1; # loading can take a long time
1477		1530
1478	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1534	my $guard = cf::lock_acquire "map_load:$path";
1480		1535
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1537
1483	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1484		1539
1485	$self->alloc;	1540	$self->alloc;
1486		1541
1487	$self->pre_load;	1542	$self->pre_load;
1488
1489	$self->_load_objects ($self->{load_path}, 1)
1490	or return;
1491
1492	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1493	if delete $self->{load_original};
1494
1495	if (my $uniq = $self->uniq_path) {
1496	utf8::encode $uniq;
1497	if (aio_open $uniq, O_RDONLY, 0) {
1498	$self->clear_unique_items;
1499	$self->_load_objects ($uniq, 0);
1500	}
1501	}
1502
1503	Coro::cede;
1504
1505	# now do the right thing for maps
1506	$self->link_multipart_objects;
1507
1508	unless ($self->{deny_activate}) {
1509	$self->decay_objects;
1510	$self->fix_auto_apply;
1511	$self->update_buttons;
1512	Coro::cede;	1543	Coro::cede;
1513	$self->set_darkness_map;	1544
		1545	$self->_load_objects ($self->{load_path}, 1)
		1546	or return;
		1547
		1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1549	if delete $self->{load_original};
		1550
		1551	if (my $uniq = $self->uniq_path) {
		1552	utf8::encode $uniq;
		1553	if (aio_open $uniq, O_RDONLY, 0) {
		1554	$self->clear_unique_items;
		1555	$self->_load_objects ($uniq, 0);
		1556	}
		1557	}
		1558
		1559	Coro::cede;
		1560	# now do the right thing for maps
		1561	$self->link_multipart_objects;
1514	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1515	unless $self->difficulty;	1563	unless $self->difficulty;
1516	Coro::cede;	1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1517	$self->activate;	1573	$self->activate;
		1574	}
		1575
		1576	$self->in_memory (cf::MAP_IN_MEMORY);
1518	}	1577	}
1519		1578
1520	$self->post_load;	1579	$self->post_load;
1521
1522	$self->in_memory (cf::MAP_IN_MEMORY);
1523	}	1580	}
1524		1581
1525	sub customise_for {	1582	sub customise_for {
1526	my ($self, $ob) = @_;	1583	my ($self, $ob) = @_;
1527		1584
…		…
1718	instantiated unique items. May block.	1775	instantiated unique items. May block.
1719		1776
1720	=cut	1777	=cut
1721		1778
1722	sub unique_maps() {	1779	sub unique_maps() {
1723	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1780	my $files = aio_readdir $UNIQUEDIR
1724	or return;	1781	or return;
1725		1782
1726	my @paths;	1783	my @paths;
1727		1784
1728	for (@$files) {	1785	for (@$files) {
…		…
1984		2041
1985	$rmp->{random_seed} \|\|= $exit->random_seed;	2042	$rmp->{random_seed} \|\|= $exit->random_seed;
1986		2043
1987	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1988	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
1989	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2046	my $meta = "$RANDOMDIR/$md5.meta";
1990		2047
1991	if (my $fh = aio_open "$meta~", O_WRONLY \| O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY \| O_CREAT, 0666) {
1992	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
1993	undef $fh;	2050	undef $fh;
1994	aio_rename "$meta~", $meta;	2051	aio_rename "$meta~", $meta;
…		…
2263	#############################################################################	2320	#############################################################################
2264		2321
2265	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
2266		2323
2267	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
2268	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2269	excludes objects.	2326	convert to/from binary).
2270		2327
2271	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
2272	using it, it should be unique.	2329	using it, it should be unique.
2273		2330
2274	=over 4	2331	=over 4
…		…
2297	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;	2354	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2298	cf::cleanup "db_open(db): $!" if $!;	2355	cf::cleanup "db_open(db): $!" if $!;
2299	};	2356	};
2300	cf::cleanup "db_open(db): $@" if $@;	2357	cf::cleanup "db_open(db): $@" if $@;
2301	};	2358	};
2302
2303	my $path = cf::localdir . "/database.pst";
2304	if (stat $path) {
2305	cf::sync_job {
2306	my $pst = Storable::retrieve $path;
2307
2308	cf::db_put (board => data => $pst->{board});
2309	cf::db_put (guildrules => data => $pst->{guildrules});
2310	cf::db_put (rent => balance => $pst->{rent}{balance});
2311	BDB::db_env_txn_checkpoint $DB_ENV;
2312
2313	unlink $path;
2314	};
2315	}
2316	}	2359	}
2317	}	2360	}
2318		2361
2319	sub db_get($$) {	2362	sub db_get($$) {
2320	my $key = "$_[0]/$_[1]";	2363	my $key = "$_[0]/$_[1]";
2321		2364
2322	cf::sync_job {	2365	cf::sync_job {
2323	BDB::db_get $DB, undef, $key, my $data;	2366	BDB::db_get $DB, undef, $key, my $data;
2324		2367
2325	$! ? ()	2368	$! ? ()
2326	: Compress::LZF::sthaw $data	2369	: $data
2327	}	2370	}
2328	}	2371	}
2329		2372
2330	sub db_put($$$) {	2373	sub db_put($$$) {
2331	BDB::dbreq_pri 4;	2374	BDB::dbreq_pri 4;
2332	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2333	}	2376	}
		2377
		2378	=item cf::cache $id => [$paths...], $processversion => $process
		2379
		2380	Generic caching function that returns the value of the resource $id,
		2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
		2410	}
		2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
		2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
2334		2493
2335	#############################################################################	2494	#############################################################################
2336	# the server's init and main functions	2495	# the server's init and main functions
2337		2496
2338	sub load_facedata {	2497	sub load_facedata($) {
2339	my $path = sprintf "%s/facedata", cf::datadir;	2498	my ($path) = @_;
2340		2499
2341	warn "loading facedata from $path\n";	2500	warn "loading facedata from $path\n";
2342		2501
2343	my $facedata;	2502	my $facedata;
2344	0 < aio_load $path, $facedata	2503	0 < aio_load $path, $facedata
…		…
2385	}	2544	}
2386		2545
2387	1	2546	1
2388	}	2547	}
2389		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
2390	sub reload_resources {	2569	sub reload_resources {
2391	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2570	warn "reloading resource files...\n";
2392	or die "unable to load regions file\n";#d#	2571
		2572	reload_regions;
2393	load_facedata	2573	reload_facedata;
2394	or die "unable to load facedata\n";#d#	2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
2395	}	2578	}
2396		2579
2397	sub init {	2580	sub init {
2398	reload_resources;	2581	reload_resources;
2399	}	2582	}
2400		2583
2401	sub cfg_load {	2584	sub cfg_load {
2402	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
2403	or return;	2586	or return;
2404		2587
2405	local $/;	2588	local $/;
2406	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
2407		2590
…		…
2492		2675
2493	warn Carp::longmess "post_cleanup backtrace"	2676	warn Carp::longmess "post_cleanup backtrace"
2494	if $make_core;	2677	if $make_core;
2495	}	2678	}
2496		2679
2497	sub reload() {	2680	sub do_reload_perl() {
2498	# can/must only be called in main	2681	# can/must only be called in main
2499	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2500	warn "can only reload from main coroutine";	2683	warn "can only reload from main coroutine";
2501	return;	2684	return;
2502	}	2685	}
…		…
2577	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2578	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2579		2762
2580	warn "unloading cf.pm \"a bit\"";	2763	warn "unloading cf.pm \"a bit\"";
2581	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2582		2766
2583	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2584	# and global variables created in xs	2768	# and global variables created in xs
2585	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2586		2770
…		…
2601	warn "reattaching attachments to maps";	2785	warn "reattaching attachments to maps";
2602	reattach $_ for values %MAP;	2786	reattach $_ for values %MAP;
2603	warn "reattaching attachments to players";	2787	warn "reattaching attachments to players";
2604	reattach $_ for values %PLAYER;	2788	reattach $_ for values %PLAYER;
2605		2789
2606	warn "loading reloadable resources";
2607	reload_resources;
2608
2609	warn "leaving sync_job";	2790	warn "leaving sync_job";
2610		2791
2611	1	2792	1
2612	} or do {	2793	} or do {
2613	warn $@;	2794	warn $@;
…		…
2618	warn "reloaded";	2799	warn "reloaded";
2619	};	2800	};
2620		2801
2621	our $RELOAD_WATCHER; # used only during reload	2802	our $RELOAD_WATCHER; # used only during reload
2622		2803
		2804	sub reload_perl() {
		2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
		2807
		2808	$RELOAD_WATCHER \|\|= Event->timer (
		2809	reentrant => 0,
		2810	after => 0,
		2811	data => WF_AUTOCANCEL,
		2812	cb => sub {
		2813	do_reload_perl;
		2814	undef $RELOAD_WATCHER;
		2815	},
		2816	);
		2817	}
		2818
2623	register_command "reload" => sub {	2819	register_command "reload" => sub {
2624	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2625		2821
2626	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2627	$who->message ("reloading server.");	2823	$who->message ("reloading server.");
2628		2824	async { reload_perl };
2629	# doing reload synchronously and two reloads happen back-to-back,
2630	# coro crashes during coro_state_free->destroy here.
2631
2632	$RELOAD_WATCHER \|\|= Event->timer (
2633	reentrant => 0,
2634	after => 0,
2635	data => WF_AUTOCANCEL,
2636	cb => sub {
2637	reload;
2638	undef $RELOAD_WATCHER;
2639	},
2640	);
2641	}	2825	}
2642	};	2826	};
2643		2827
2644	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
2645		2829
2646	my $bug_warning = 0;	2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2647		2852
2648	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2649	reentrant => 0,	2854	reentrant => 0,
2650	parked => 1,	2855	parked => 1,
2651	prio => 0,	2856	prio => 0,
…		…
2656	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2657	unless ++$bug_warning > 10;	2862	unless ++$bug_warning > 10;
2658	return;	2863	return;
2659	}	2864	}
2660		2865
2661	$NOW = Event::time;	2866	$NOW = $tick_start = Event::time;
2662		2867
2663	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2664	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2665	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2666		2872
2667	if ($NOW >= $NEXT_RUNTIME_WRITE) {	2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2668	$NEXT_RUNTIME_WRITE = $NOW + 10;	2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2670	write_runtime	2876	write_runtime
2671	or warn "ERROR: unable to write runtime file: $!";	2877	or warn "ERROR: unable to write runtime file: $!";
2672	};	2878	};
2673	}	2879	}
2674		2880
2675	$WAIT_FOR_TICK->broadcast;
2676	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2677
2678	# my $AFTER = Event::time;	2881	# my $AFTER = Event::time;
2679	# warn $AFTER - $NOW;#d#	2882	# warn $AFTER - $NOW;#d#
2680		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
		2892
2681	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2682	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2683		2895
2684	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2685	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2686	},	2905	},
2687	);	2906	);
2688		2907
2689	{	2908	{
2690	BDB::max_poll_time $TICK * 0.1;	2909	BDB::max_poll_time $TICK * 0.1;
…		…
2718		2937
2719	cf::sync_job {	2938	cf::sync_job {
2720	eval {	2939	eval {
2721	BDB::db_env_open	2940	BDB::db_env_open
2722	$DB_ENV,	2941	$DB_ENV,
2723	$BDB_ENV_DIR,	2942	$BDBDIR,
2724	BDB::INIT_LOCK \| BDB::INIT_LOG \| BDB::INIT_MPOOL \| BDB::INIT_TXN	2943	BDB::INIT_LOCK \| BDB::INIT_LOG \| BDB::INIT_MPOOL \| BDB::INIT_TXN
2725	\| BDB::RECOVER \| BDB::REGISTER \| BDB::USE_ENVIRON \| BDB::CREATE,	2944	\| BDB::RECOVER \| BDB::REGISTER \| BDB::USE_ENVIRON \| BDB::CREATE,
2726	0666;	2945	0666;
2727		2946
2728	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2729		2948
2730	$DB_ENV->set_flags (BDB::AUTO_COMMIT \| BDB::REGION_INIT \| BDB::TXN_NOSYNC, 1);	2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT \| BDB::REGION_INIT \| BDB::TXN_NOSYNC, 1);
2731	$DB_ENV->set_lk_detect;	2950	$DB_ENV->set_lk_detect;
2732	};	2951	};
2733		2952
…		…
2749	prio => 6,	2968	prio => 6,
2750	cb => \&IO::AIO::poll_cb,	2969	cb => \&IO::AIO::poll_cb,
2751	);	2970	);
2752	}	2971	}
2753		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 \|"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
		3013
2754	END { cf::emergency_save }	3014	END { cf::emergency_save }
2755		3015
2756	1	3016	1
2757		3017

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC vs. Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.238 by root, Sat Apr 14 07:23:00 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC