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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.3;
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use Digest::MD5;
		21	use Fcntl;
19	use IO::AIO 2.3;	22	use IO::AIO 2.31 ();
20	use YAML::Syck ();	23	use YAML::Syck ();
21	use Time::HiRes;	24	use Time::HiRes;
22		25
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
24		27
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
27		30
28	$Coro::main->prio (Coro::PRIO_MIN);	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
29		32
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		34
32	our %COMMAND = ();	35	our %COMMAND = ();
33	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
…		…
37	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
38		41
39	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	43	our $TICK_WATCHER;
41	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
42		46
43	our %CFG;	47	our %CFG;
44		48
45	our $UPTIME; $UPTIME \|\|= time;	49	our $UPTIME; $UPTIME \|\|= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME \|\| !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76
		77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
46		78
47	#############################################################################	79	#############################################################################
48		80
49	=head2 GLOBAL VARIABLES	81	=head2 GLOBAL VARIABLES
50		82
51	=over 4	83	=over 4
52		84
53	=item $cf::UPTIME	85	=item $cf::UPTIME
54		86
55	The timestamp of the server start (so not actually an uptime).	87	The timestamp of the server start (so not actually an uptime).
		88
		89	=item $cf::RUNTIME
		90
		91	The time this server has run, starts at 0 and is increased by $cf::TICK on
		92	every server tick.
56		93
57	=item $cf::LIBDIR	94	=item $cf::LIBDIR
58		95
59	The perl library directory, where extensions and cf-specific modules can	96	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	97	be found. It will be added to C<@INC> automatically.
		98
		99	=item $cf::NOW
		100
		101	The time of the last (current) server tick.
61		102
62	=item $cf::TICK	103	=item $cf::TICK
63		104
64	The interval between server ticks, in seconds.	105	The interval between server ticks, in seconds.
65		106
…		…
73	=cut	114	=cut
74		115
75	BEGIN {	116	BEGIN {
76	*CORE::GLOBAL::warn = sub {	117	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	118	my $msg = join "", @_;
		119	utf8::encode $msg;
		120
78	$msg .= "\n"	121	$msg .= "\n"
79	unless $msg =~ /\n$/;	122	unless $msg =~ /\n$/;
80		123
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	124	LOG llevError, "cfperl: $msg";
83	};	125	};
84	}	126	}
85		127
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
139	sub to_json($) {	181	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	183	JSON::Syck::Dump $_[0]
142	}	184	}
143		185
		186	=item my $guard = cf::guard { BLOCK }
		187
		188	Run the given callback when the guard object gets destroyed (useful for
		189	coroutine cancellations).
		190
		191	You can call C<< ->cancel >> on the guard object to stop the block from
		192	being executed.
		193
		194	=cut
		195
		196	sub guard(&) {
		197	bless \(my $cb = $_[0]), cf::guard::;
		198	}
		199
		200	sub cf::guard::cancel {
		201	${$_[0]} = sub { };
		202	}
		203
		204	sub cf::guard::DESTROY {
		205	${$_[0]}->();
		206	}
		207
		208	=item cf::lock_wait $string
		209
		210	Wait until the given lock is available. See cf::lock_acquire.
		211
		212	=item my $lock = cf::lock_acquire $string
		213
		214	Wait until the given lock is available and then acquires it and returns
		215	a guard object. If the guard object gets destroyed (goes out of scope,
		216	for example when the coroutine gets canceled), the lock is automatically
		217	returned.
		218
		219	Lock names should begin with a unique identifier (for example, find_map
		220	uses map_find and load_map uses map_load).
		221
		222	=cut
		223
		224	our %LOCK;
		225
		226	sub lock_wait($) {
		227	my ($key) = @_;
		228
		229	# wait for lock, if any
		230	while ($LOCK{$key}) {
		231	push @{ $LOCK{$key} }, $Coro::current;
		232	Coro::schedule;
		233	}
		234	}
		235
		236	sub lock_acquire($) {
		237	my ($key) = @_;
		238
		239	# wait, to be sure we are not locked
		240	lock_wait $key;
		241
		242	$LOCK{$key} = [];
		243
		244	cf::guard {
		245	# wake up all waiters, to be on the safe side
		246	$_->ready for @{ delete $LOCK{$key} };
		247	}
		248	}
		249
		250	=item cf::sync_job { BLOCK }
		251
		252	The design of crossfire+ requires that the main coro ($Coro::main) is
		253	always able to handle events or runnable, as crossfire+ is only partly
		254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		255
		256	If it must be done, put the blocking parts into C<sync_job>. This will run
		257	the given BLOCK in another coroutine while waiting for the result. The
		258	server will be frozen during this time, so the block should either finish
		259	fast or be very important.
		260
		261	=cut
		262
		263	sub sync_job(&) {
		264	my ($job) = @_;
		265
		266	if ($Coro::current == $Coro::main) {
		267	# this is the main coro, too bad, we have to block
		268	# till the operation succeeds, freezing the server :/
		269
		270	# TODO: use suspend/resume instead
		271	# (but this is cancel-safe)
		272	local $FREEZE = 1;
		273
		274	my $busy = 1;
		275	my @res;
		276
		277	(Coro::async {
		278	@res = eval { $job->() };
		279	warn $@ if $@;
		280	undef $busy;
		281	})->prio (Coro::PRIO_MAX);
		282
		283	while ($busy) {
		284	Coro::cede_notself;
		285	Event::one_event unless Coro::nready;
		286	}
		287
		288	wantarray ? @res : $res[0]
		289	} else {
		290	# we are in another coroutine, how wonderful, everything just works
		291
		292	$job->()
		293	}
		294	}
		295
		296	=item $coro = cf::coro { BLOCK }
		297
		298	Creates and returns a new coro. This coro is automcatially being canceled
		299	when the extension calling this is being unloaded.
		300
		301	=cut
		302
		303	sub coro(&) {
		304	my $cb = shift;
		305
		306	my $coro; $coro = async {
		307	eval {
		308	$cb->();
		309	};
		310	warn $@ if $@;
		311	};
		312
		313	$coro->on_destroy (sub {
		314	delete $EXT_CORO{$coro+0};
		315	});
		316	$EXT_CORO{$coro+0} = $coro;
		317
		318	$coro
		319	}
		320
		321	sub write_runtime {
		322	my $runtime = cf::localdir . "/runtime";
		323
		324	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		325	or return;
		326
		327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		329	and return;
		330
		331	aio_fsync $fh
		332	and return;
		333
		334	close $fh
		335	or return;
		336
		337	aio_rename "$runtime~", $runtime
		338	and return;
		339
		340	1
		341	}
		342
144	=back	343	=back
145		344
146	=cut	345	=cut
		346
		347	#############################################################################
		348
		349	package cf::path;
		350
		351	sub new {
		352	my ($class, $path, $base) = @_;
		353
		354	$path = $path->as_string if ref $path;
		355
		356	my $self = bless { }, $class;
		357
		358	# {... are special paths that are not touched
		359	# ?xxx/... are special absolute paths
		360	# ?random/... random maps
		361	# /! non-realised random map exit
		362	# /... normal maps
		363	# ~/... per-player maps without a specific player (DO NOT USE)
		364	# ~user/... per-player map of a specific user
		365
		366	if ($path =~ /^{/) {
		367	# fine as it is
		368	} elsif ($path =~ s{^\?random/}{}) {
		369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		370	$self->{random} = cf::from_json $data;
		371	} else {
		372	if ($path =~ s{^~([^/]+)?}{}) {
		373	$self->{user_rel} = 1;
		374
		375	if (defined $1) {
		376	$self->{user} = $1;
		377	} elsif ($base =~ m{^~([^/]+)/}) {
		378	$self->{user} = $1;
		379	} else {
		380	warn "cannot resolve user-relative path without user <$path,$base>\n";
		381	}
		382	} elsif ($path =~ /^\//) {
		383	# already absolute
		384	} else {
		385	$base =~ s{[^/]+/?$}{};
		386	return $class->new ("$base/$path");
		387	}
		388
		389	for ($path) {
		390	redo if s{/\.?/}{/};
		391	redo if s{/[^/]+/\.\./}{/};
		392	}
		393	}
		394
		395	$self->{path} = $path;
		396
		397	$self
		398	}
		399
		400	# the name / primary key / in-game path
		401	sub as_string {
		402	my ($self) = @_;
		403
		404	$self->{user_rel} ? "~$self->{user}$self->{path}"
		405	: $self->{random} ? "?random/$self->{path}"
		406	: $self->{path}
		407	}
		408
		409	# the displayed name, this is a one way mapping
		410	sub visible_name {
		411	my ($self) = @_;
		412
		413	# if (my $rmp = $self->{random}) {
		414	# # todo: be more intelligent about this
		415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		416	# } else {
		417	$self->as_string
		418	# }
		419	}
		420
		421	# escape the /'s in the path
		422	sub _escaped_path {
		423	# ∕ is U+2215
		424	(my $path = $_[0]{path}) =~ s/\//∕/g;
		425	$path
		426	}
		427
		428	# the original (read-only) location
		429	sub load_path {
		430	my ($self) = @_;
		431
		432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		433	}
		434
		435	# the temporary/swap location
		436	sub save_path {
		437	my ($self) = @_;
		438
		439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		442	}
		443
		444	# the unique path, might be eq to save_path
		445	sub uniq_path {
		446	my ($self) = @_;
		447
		448	$self->{user_rel} \|\| $self->{random}
		449	? undef
		450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		451	}
		452
		453	# return random map parameters, or undef
		454	sub random_map_params {
		455	my ($self) = @_;
		456
		457	$self->{random}
		458	}
		459
		460	# this is somewhat ugly, but style maps do need special treatment
		461	sub is_style_map {
		462	$_[0]{path} =~ m{^/styles/}
		463	}
		464
		465	package cf;
147		466
148	#############################################################################	467	#############################################################################
149		468
150	=head2 ATTACHABLE OBJECTS	469	=head2 ATTACHABLE OBJECTS
151		470
…		…
505	);	824	);
506		825
507	sub object_freezer_save {	826	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	827	my ($filename, $rdata, $objs) = @_;
509		828
		829	sync_job {
510	if (length $$rdata) {	830	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	831	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	832	$filename, length $$rdata, scalar @$objs;
513		833
514	if (open my $fh, ">:raw", "$filename~") {	834	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	835	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		837	aio_fsync $fh;
522	close $fh;	838	close $fh;
		839
		840	if (@$objs) {
		841	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		842	chmod SAVE_MODE, $fh;
		843	my $data = Storable::nfreeze { version => 1, objs => $objs };
		844	aio_write $fh, 0, (length $data), $data, 0;
		845	aio_fsync $fh;
		846	close $fh;
523	rename "$filename.pst~", "$filename.pst";	847	aio_rename "$filename.pst~", "$filename.pst";
		848	}
		849	} else {
		850	aio_unlink "$filename.pst";
		851	}
		852
		853	aio_rename "$filename~", $filename;
524	} else {	854	} else {
525	unlink "$filename.pst";	855	warn "FATAL: $filename~: $!\n";
526	}	856	}
527
528	rename "$filename~", $filename;
529	} else {	857	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	858	aio_unlink $filename;
534	unlink "$filename.pst";	859	aio_unlink "$filename.pst";
		860	}
535	}	861	}
536	}	862	}
537		863
538	sub object_freezer_as_string {	864	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	865	my ($rdata, $objs) = @_;
…		…
544	}	870	}
545		871
546	sub object_thawer_load {	872	sub object_thawer_load {
547	my ($filename) = @_;	873	my ($filename) = @_;
548		874
549	local $/;	875	my ($data, $av);
550		876
551	my $av;	877	(aio_load $filename, $data) >= 0
		878	or return;
552		879
553	#TODO: use sysread etc.	880	unless (aio_stat "$filename.pst") {
554	if (open my $data, "<:raw:perlio", $filename) {	881	(aio_load "$filename.pst", $av) >= 0
555	$data = <$data>;	882	or return;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	883	$av = eval { (Storable::thaw $av)->{objs} };
558	}	884	}
		885
		886	warn sprintf "loading %s (%d)\n",
		887	$filename, length $data, scalar @{$av \|\| []};#d#
559	return ($data, $av);	888	return ($data, $av);
560	}
561
562	()
563	}	889	}
564		890
565	#############################################################################	891	#############################################################################
566	# command handling &c	892	# command handling &c
567		893
…		…
788	$self->send ("ext " . to_json \%msg);	1114	$self->send ("ext " . to_json \%msg);
789	}	1115	}
790		1116
791	=back	1117	=back
792		1118
		1119
		1120	=head3 cf::map
		1121
		1122	=over 4
		1123
		1124	=cut
		1125
		1126	package cf::map;
		1127
		1128	use Fcntl;
		1129	use Coro::AIO;
		1130
		1131	our $MAX_RESET = 7200;
		1132	our $DEFAULT_RESET = 3600;
		1133
		1134	sub generate_random_map {
		1135	my ($path, $rmp) = @_;
		1136
		1137	# mit "rum" bekleckern, nicht
		1138	cf::map::_create_random_map
		1139	$path,
		1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1143	$rmp->{exit_on_final_map},
		1144	$rmp->{xsize}, $rmp->{ysize},
		1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1150	(cf::region::find $rmp->{region})
		1151	}
		1152
		1153	# and all this just because we cannot iterate over
		1154	# all maps in C++...
		1155	sub change_all_map_light {
		1156	my ($change) = @_;
		1157
		1158	$_->change_map_light ($change)
		1159	for grep $_->outdoor, values %cf::MAP;
		1160	}
		1161
		1162	sub try_load_header($) {
		1163	my ($path) = @_;
		1164
		1165	utf8::encode $path;
		1166	aio_open $path, O_RDONLY, 0
		1167	or return;
		1168
		1169	my $map = cf::map::new
		1170	or return;
		1171
		1172	$map->load_header ($path)
		1173	or return;
		1174
		1175	$map->{load_path} = $path;
		1176
		1177	$map
		1178	}
		1179
		1180	sub find_map {
		1181	my ($path, $origin) = @_;
		1182
		1183	#warn "find_map<$path,$origin>\n";#d#
		1184
		1185	$path = new cf::path $path, $origin && $origin->path;
		1186	my $key = $path->as_string;
		1187
		1188	cf::lock_wait "map_find:$key";
		1189
		1190	$cf::MAP{$key} \|\| do {
		1191	my $guard = cf::lock_acquire "map_find:$key";
		1192
		1193	# do it the slow way
		1194	my $map = try_load_header $path->save_path;
		1195
		1196	if ($map) {
		1197	# safety
		1198	$map->{instantiate_time} = $cf::RUNTIME
		1199	if $map->{instantiate_time} > $cf::RUNTIME;
		1200	} else {
		1201	if (my $rmp = $path->random_map_params) {
		1202	$map = generate_random_map $key, $rmp;
		1203	} else {
		1204	$map = try_load_header $path->load_path;
		1205	}
		1206
		1207	$map or return;
		1208
		1209	$map->{load_original} = 1;
		1210	$map->{instantiate_time} = $cf::RUNTIME;
		1211	$map->instantiate;
		1212
		1213	# per-player maps become, after loading, normal maps
		1214	$map->per_player (0) if $path->{user_rel};
		1215	}
		1216
		1217	$map->path ($key);
		1218	$map->{path} = $path;
		1219	$map->{last_save} = $cf::RUNTIME;
		1220	$map->last_access ($cf::RUNTIME);
		1221
		1222	if ($map->should_reset) {
		1223	$map->reset;
		1224	undef $guard;
		1225	$map = cf::map::find_map ($path)
		1226	or return;
		1227	}
		1228
		1229	$cf::MAP{$key} = $map
		1230	}
		1231	}
		1232
		1233	sub load {
		1234	my ($self) = @_;
		1235
		1236	my $path = $self->{path};
		1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1238
		1239	return if $self->in_memory != cf::MAP_SWAPPED;
		1240
		1241	$self->in_memory (cf::MAP_LOADING);
		1242
		1243	$self->alloc;
		1244	$self->load_objects ($self->{load_path}, 1)
		1245	or return;
		1246
		1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1248	if delete $self->{load_original};
		1249
		1250	if (my $uniq = $path->uniq_path) {
		1251	utf8::encode $uniq;
		1252	if (aio_open $uniq, O_RDONLY, 0) {
		1253	$self->clear_unique_items;
		1254	$self->load_objects ($uniq, 0);
		1255	}
		1256	}
		1257
		1258	# now do the right thing for maps
		1259	$self->link_multipart_objects;
		1260
		1261	if ($self->{path}->is_style_map) {
		1262	$self->{deny_save} = 1;
		1263	$self->{deny_reset} = 1;
		1264	} else {
		1265	$self->fix_auto_apply;
		1266	$self->decay_objects;
		1267	$self->update_buttons;
		1268	$self->set_darkness_map;
		1269	$self->difficulty ($self->estimate_difficulty)
		1270	unless $self->difficulty;
		1271	$self->activate;
		1272	}
		1273
		1274	$self->in_memory (cf::MAP_IN_MEMORY);
		1275	}
		1276
		1277	sub load_map_sync {
		1278	my ($path, $origin) = @_;
		1279
		1280	#warn "load_map_sync<$path, $origin>\n";#d#
		1281
		1282	cf::sync_job {
		1283	my $map = cf::map::find_map $path, $origin
		1284	or return;
		1285	$map->load;
		1286	$map
		1287	}
		1288	}
		1289
		1290	sub save {
		1291	my ($self) = @_;
		1292
		1293	$self->{last_save} = $cf::RUNTIME;
		1294
		1295	return unless $self->dirty;
		1296
		1297	my $save = $self->{path}->save_path; utf8::encode $save;
		1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1299
		1300	$self->{load_path} = $save;
		1301
		1302	return if $self->{deny_save};
		1303
		1304	if ($uniq) {
		1305	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1306	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1307	} else {
		1308	$self->save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1309	}
		1310	}
		1311
		1312	sub swap_out {
		1313	my ($self) = @_;
		1314
		1315	return if $self->players;
		1316	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1317	return if $self->{deny_save};
		1318
		1319	$self->save;
		1320	$self->clear;
		1321	$self->in_memory (cf::MAP_SWAPPED);
		1322	}
		1323
		1324	sub reset_at {
		1325	my ($self) = @_;
		1326
		1327	# TODO: safety, remove and allow resettable per-player maps
		1328	return 1e99 if $self->{path}{user_rel};
		1329	return 1e99 if $self->{deny_reset};
		1330
		1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1333
		1334	$time + $to
		1335	}
		1336
		1337	sub should_reset {
		1338	my ($self) = @_;
		1339
		1340	$self->reset_at <= $cf::RUNTIME
		1341	}
		1342
		1343	sub unlink_save {
		1344	my ($self) = @_;
		1345
		1346	utf8::encode (my $save = $self->{path}->save_path);
		1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1349	}
		1350
		1351	sub rename {
		1352	my ($self, $new_path) = @_;
		1353
		1354	$self->unlink_save;
		1355
		1356	delete $cf::MAP{$self->path};
		1357	$self->{path} = new cf::path $new_path;
		1358	$self->path ($self->{path}->as_string);
		1359	$cf::MAP{$self->path} = $self;
		1360
		1361	$self->save;
		1362	}
		1363
		1364	sub reset {
		1365	my ($self) = @_;
		1366
		1367	return if $self->players;
		1368	return if $self->{path}{user_rel};#d#
		1369
		1370	warn "resetting map ", $self->path;#d#
		1371
		1372	delete $cf::MAP{$self->path};
		1373
		1374	$_->clear_links_to ($self) for values %cf::MAP;
		1375
		1376	$self->unlink_save;
		1377	$self->destroy;
		1378	}
		1379
		1380	my $nuke_counter = "aaaa";
		1381
		1382	sub nuke {
		1383	my ($self) = @_;
		1384
		1385	$self->{deny_save} = 1;
		1386	$self->reset_timeout (1);
		1387	$self->rename ("{nuke}/" . ($nuke_counter++));
		1388	$self->reset; # polite request, might not happen
		1389	}
		1390
		1391	sub customise_for {
		1392	my ($map, $ob) = @_;
		1393
		1394	if ($map->per_player) {
		1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};
		1396	}
		1397
		1398	$map
		1399	}
		1400
		1401	sub emergency_save {
		1402	local $cf::FREEZE = 1;
		1403
		1404	warn "enter emergency map save\n";
		1405
		1406	cf::sync_job {
		1407	warn "begin emergency map save\n";
		1408	$_->save for values %cf::MAP;
		1409	};
		1410
		1411	warn "end emergency map save\n";
		1412	}
		1413
		1414	package cf;
		1415
		1416	=back
		1417
		1418
793	=head3 cf::object::player	1419	=head3 cf::object::player
794		1420
795	=over 4	1421	=over 4
796		1422
797	=item $player_object->reply ($npc, $msg[, $flags])	1423	=item $player_object->reply ($npc, $msg[, $flags])
…		…
830		1456
831	$self->flag (cf::FLAG_WIZ) \|\|	1457	$self->flag (cf::FLAG_WIZ) \|\|
832	(ref $cf::CFG{"may_$access"}	1458	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1459	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1460	: $cf::CFG{"may_$access"})
		1461	}
		1462
		1463	=item $player_object->enter_link
		1464
		1465	Freezes the player and moves him/her to a special map (C<{link}>).
		1466
		1467	The player should be reaosnably safe there for short amounts of time. You
		1468	I<MUST> call C<leave_link> as soon as possible, though.
		1469
		1470	=item $player_object->leave_link ($map, $x, $y)
		1471
		1472	Moves the player out of the specila link map onto the given map. If the
		1473	map is not valid (or omitted), the player will be moved back to the
		1474	location he/she was before the call to C<enter_link>, or, if that fails,
		1475	to the emergency map position.
		1476
		1477	Might block.
		1478
		1479	=cut
		1480
		1481	sub cf::object::player::enter_link {
		1482	my ($self) = @_;
		1483
		1484	$self->deactivate_recursive;
		1485
		1486	return if $self->map == $LINK_MAP;
		1487
		1488	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1489	if $self->map;
		1490
		1491	$self->enter_map ($LINK_MAP, 20, 20);
		1492	}
		1493
		1494	sub cf::object::player::leave_link {
		1495	my ($self, $map, $x, $y) = @_;
		1496
		1497	my $link_pos = delete $self->{_link_pos};
		1498
		1499	unless ($map) {
		1500	# restore original map position
		1501	($map, $x, $y) = @{ $link_pos \|\| [] };
		1502	$map = cf::map::find_map $map;
		1503
		1504	unless ($map) {
		1505	($map, $x, $y) = @$EMERGENCY_POSITION;
		1506	$map = cf::map::find_map $map
		1507	or die "FATAL: cannot load emergency map\n";
		1508	}
		1509	}
		1510
		1511	($x, $y) = (-1, -1)
		1512	unless (defined $x) && (defined $y);
		1513
		1514	# use -1 or undef as default coordinates, not 0, 0
		1515	($x, $y) = ($map->enter_x, $map->enter_y)
		1516	if $x <=0 && $y <= 0;
		1517
		1518	$map->load;
		1519
		1520	$self->activate_recursive;
		1521	$self->enter_map ($map, $x, $y);
		1522	}
		1523
		1524	cf::player->attach (
		1525	on_logout => sub {
		1526	my ($pl) = @_;
		1527
		1528	# abort map switching before logout
		1529	if ($pl->ob->{_link_pos}) {
		1530	cf::sync_job {
		1531	$pl->ob->leave_link
		1532	};
		1533	}
		1534	},
		1535	on_login => sub {
		1536	my ($pl) = @_;
		1537
		1538	# try to abort aborted map switching on player login :)
		1539	# should happen only on crashes
		1540	if ($pl->ob->{_link_pos}) {
		1541	$pl->ob->enter_link;
		1542	Coro::async {
		1543	# we need this sleep as the login has a concurrent enter_exit running
		1544	# and this sleep increases chances of the player not ending up in scorn
		1545	Coro::Timer::sleep 1;
		1546	$pl->ob->leave_link;
		1547	};
		1548	}
		1549	},
		1550	);
		1551
		1552	=item $player_object->goto_map ($path, $x, $y)
		1553
		1554	=cut
		1555
		1556	sub cf::object::player::goto_map {
		1557	my ($self, $path, $x, $y) = @_;
		1558
		1559	$self->enter_link;
		1560
		1561	(Coro::async {
		1562	$path = new cf::path $path;
		1563
		1564	my $map = cf::map::find_map $path->as_string;
		1565	$map = $map->customise_for ($self) if $map;
		1566
		1567	# warn "entering ", $map->path, " at ($x, $y)\n"
		1568	# if $map;
		1569
		1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1571
		1572	$self->leave_link ($map, $x, $y);
		1573	})->prio (1);
		1574	}
		1575
		1576	=item $player_object->enter_exit ($exit_object)
		1577
		1578	=cut
		1579
		1580	sub parse_random_map_params {
		1581	my ($spec) = @_;
		1582
		1583	my $rmp = { # defaults
		1584	xsize => 10,
		1585	ysize => 10,
		1586	};
		1587
		1588	for (split /\n/, $spec) {
		1589	my ($k, $v) = split /\s+/, $_, 2;
		1590
		1591	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1592	}
		1593
		1594	$rmp
		1595	}
		1596
		1597	sub prepare_random_map {
		1598	my ($exit) = @_;
		1599
		1600	# all this does is basically replace the /! path by
		1601	# a new random map path (?random/...) with a seed
		1602	# that depends on the exit object
		1603
		1604	my $rmp = parse_random_map_params $exit->msg;
		1605
		1606	if ($exit->map) {
		1607	$rmp->{region} = $exit->map->region_name;
		1608	$rmp->{origin_map} = $exit->map->path;
		1609	$rmp->{origin_x} = $exit->x;
		1610	$rmp->{origin_y} = $exit->y;
		1611	}
		1612
		1613	$rmp->{random_seed} \|\|= $exit->random_seed;
		1614
		1615	my $data = cf::to_json $rmp;
		1616	my $md5 = Digest::MD5::md5_hex $data;
		1617
		1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1619	aio_write $fh, 0, (length $data), $data, 0;
		1620
		1621	$exit->slaying ("?random/$md5");
		1622	$exit->msg (undef);
		1623	}
		1624	}
		1625
		1626	sub cf::object::player::enter_exit {
		1627	my ($self, $exit) = @_;
		1628
		1629	return unless $self->type == cf::PLAYER;
		1630
		1631	$self->enter_link;
		1632
		1633	(Coro::async {
		1634	unless (eval {
		1635
		1636	prepare_random_map $exit
		1637	if $exit->slaying eq "/!";
		1638
		1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
		1641
		1642	1;
		1643	}) {
		1644	$self->message ("Something went wrong deep within the crossfire server. "
		1645	. "I'll try to bring you back to the map you were before. "
		1646	. "Please report this to the dungeon master",
		1647	cf::NDI_UNIQUE \| cf::NDI_RED);
		1648
		1649	warn "ERROR in enter_exit: $@";
		1650	$self->leave_link;
		1651	}
		1652	})->prio (1);
835	}	1653	}
836		1654
837	=head3 cf::client	1655	=head3 cf::client
838		1656
839	=over 4	1657	=over 4
…		…
916	my $coro; $coro = async {	1734	my $coro; $coro = async {
917	eval {	1735	eval {
918	$cb->();	1736	$cb->();
919	};	1737	};
920	warn $@ if $@;	1738	warn $@ if $@;
		1739	};
		1740
		1741	$coro->on_destroy (sub {
921	delete $self->{_coro}{$coro+0};	1742	delete $self->{_coro}{$coro+0};
922	};	1743	});
923		1744
924	$self->{_coro}{$coro+0} = $coro;	1745	$self->{_coro}{$coro+0} = $coro;
		1746
		1747	$coro
925	}	1748	}
926		1749
927	cf::client->attach (	1750	cf::client->attach (
928	on_destroy => sub {	1751	on_destroy => sub {
929	my ($ns) = @_;	1752	my ($ns) = @_;
…		…
1093		1916
1094	{	1917	{
1095	my $path = cf::localdir . "/database.pst";	1918	my $path = cf::localdir . "/database.pst";
1096		1919
1097	sub db_load() {	1920	sub db_load() {
1098	warn "loading database $path\n";#d# remove later
1099	$DB = stat $path ? Storable::retrieve $path : { };	1921	$DB = stat $path ? Storable::retrieve $path : { };
1100	}	1922	}
1101		1923
1102	my $pid;	1924	my $pid;
1103		1925
1104	sub db_save() {	1926	sub db_save() {
1105	warn "saving database $path\n";#d# remove later
1106	waitpid $pid, 0 if $pid;	1927	waitpid $pid, 0 if $pid;
1107	if (0 == ($pid = fork)) {	1928	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;	1929	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";	1930	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;	1931	rename "$path~", $path;
…		…
1161	local $/;	1982	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	1983	*CFG = YAML::Syck::Load <$fh>;
1163	}	1984	}
1164		1985
1165	sub main {	1986	sub main {
		1987	# we must not ever block the main coroutine
		1988	local $Coro::idle = sub {
		1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		1990	(Coro::unblock_sub {
		1991	Event::one_event;
		1992	})->();
		1993	};
		1994
1166	cfg_load;	1995	cfg_load;
1167	db_load;	1996	db_load;
1168	load_extensions;	1997	load_extensions;
1169	Event::loop;	1998	Event::loop;
1170	}	1999	}
1171		2000
1172	#############################################################################	2001	#############################################################################
1173	# initialisation	2002	# initialisation
1174		2003
1175	sub _perl_reload(&) {	2004	sub reload() {
1176	my ($msg) = @_;	2005	# can/must only be called in main
		2006	if ($Coro::current != $Coro::main) {
		2007	warn "can only reload from main coroutine\n";
		2008	return;
		2009	}
1177		2010
1178	$msg->("reloading...");	2011	warn "reloading...";
		2012
		2013	local $FREEZE = 1;
		2014	cf::emergency_save;
1179		2015
1180	eval {	2016	eval {
		2017	# if anything goes wrong in here, we should simply crash as we already saved
		2018
1181	# cancel all watchers	2019	# cancel all watchers
1182	for (Event::all_watchers) {	2020	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2021	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2022	}
1185		2023
		2024	# cancel all extension coros
		2025	$_->cancel for values %EXT_CORO;
		2026	%EXT_CORO = ();
		2027
1186	# unload all extensions	2028	# unload all extensions
1187	for (@exts) {	2029	for (@exts) {
1188	$msg->("unloading <$_>");	2030	warn "unloading <$_>";
1189	unload_extension $_;	2031	unload_extension $_;
1190	}	2032	}
1191		2033
1192	# unload all modules loaded from $LIBDIR	2034	# unload all modules loaded from $LIBDIR
1193	while (my ($k, $v) = each %INC) {	2035	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2037
1196	$msg->("removing <$k>");	2038	warn "removing <$k>";
1197	delete $INC{$k};	2039	delete $INC{$k};
1198		2040
1199	$k =~ s/\.pm$//;	2041	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2042	$k =~ s/\//::/g;
1201		2043
…		…
1206	Symbol::delete_package $k;	2048	Symbol::delete_package $k;
1207	}	2049	}
1208		2050
1209	# sync database to disk	2051	# sync database to disk
1210	cf::db_sync;	2052	cf::db_sync;
		2053	IO::AIO::flush;
1211		2054
1212	# get rid of safe::, as good as possible	2055	# get rid of safe::, as good as possible
1213	Symbol::delete_package "safe::$_"	2056	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2058
1216	# remove register_script_function callbacks	2059	# remove register_script_function callbacks
1217	# TODO	2060	# TODO
1218		2061
1219	# unload cf.pm "a bit"	2062	# unload cf.pm "a bit"
…		…
1222	# don't, removes xs symbols, too,	2065	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2066	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2067	#Symbol::delete_package __PACKAGE__;
1225		2068
1226	# reload cf.pm	2069	# reload cf.pm
1227	$msg->("reloading cf.pm");	2070	warn "reloading cf.pm";
1228	require cf;	2071	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2073
1231	# load config and database again	2074	# load config and database again
1232	cf::cfg_load;	2075	cf::cfg_load;
1233	cf::db_load;	2076	cf::db_load;
1234		2077
1235	# load extensions	2078	# load extensions
1236	$msg->("load extensions");	2079	warn "load extensions";
1237	cf::load_extensions;	2080	cf::load_extensions;
1238		2081
1239	# reattach attachments to objects	2082	# reattach attachments to objects
1240	$msg->("reattach");	2083	warn "reattach";
1241	_global_reattach;	2084	_global_reattach;
1242	};	2085	};
1243	$msg->($@) if $@;
1244		2086
1245	$msg->("reloaded");	2087	if ($@) {
		2088	warn $@;
		2089	warn "error while reloading, exiting.";
		2090	exit 1;
		2091	}
		2092
		2093	warn "reloaded successfully";
1246	};	2094	};
1247		2095
1248	sub perl_reload() {	2096	#############################################################################
1249	_perl_reload {	2097
1250	warn $_[0];	2098	unless ($LINK_MAP) {
1251	print "$_[0]\n";	2099	$LINK_MAP = cf::map::new;
1252	};	2100
		2101	$LINK_MAP->width (41);
		2102	$LINK_MAP->height (41);
		2103	$LINK_MAP->alloc;
		2104	$LINK_MAP->path ("{link}");
		2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2107
		2108	# dirty hack because... archetypes are not yet loaded
		2109	Event->timer (
		2110	after => 2,
		2111	cb => sub {
		2112	$_[0]->w->cancel;
		2113
		2114	# provide some exits "home"
		2115	my $exit = cf::object::new "exit";
		2116
		2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2120
		2121	$LINK_MAP->insert ($exit->clone, 19, 19);
		2122	$LINK_MAP->insert ($exit->clone, 19, 20);
		2123	$LINK_MAP->insert ($exit->clone, 19, 21);
		2124	$LINK_MAP->insert ($exit->clone, 20, 19);
		2125	$LINK_MAP->insert ($exit->clone, 20, 21);
		2126	$LINK_MAP->insert ($exit->clone, 21, 19);
		2127	$LINK_MAP->insert ($exit->clone, 21, 20);
		2128	$LINK_MAP->insert ($exit->clone, 21, 21);
		2129
		2130	$exit->destroy;
		2131	});
		2132
		2133	$LINK_MAP->{deny_save} = 1;
		2134	$LINK_MAP->{deny_reset} = 1;
		2135
		2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1253	}	2137	}
1254		2138
1255	register "<global>", __PACKAGE__;	2139	register "<global>", __PACKAGE__;
1256		2140
1257	register_command "perl-reload" => sub {	2141	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2142	my ($who, $arg) = @_;
1259		2143
1260	if ($who->flag (FLAG_WIZ)) {	2144	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2145	$who->message ("start of reload.");
1262	warn $_[0];	2146	reload;
1263	$who->message ($_[0]);	2147	$who->message ("end of reload.");
1264	};
1265	}	2148	}
1266	};	2149	};
1267		2150
1268	unshift @INC, $LIBDIR;	2151	unshift @INC, $LIBDIR;
1269		2152
1270	$TICK_WATCHER = Event->timer (	2153	$TICK_WATCHER = Event->timer (
		2154	reentrant => 0,
1271	prio => 0,	2155	prio => 0,
1272	at => $NEXT_TICK \|\| 1,	2156	at => $NEXT_TICK \|\| $TICK,
1273	data => WF_AUTOCANCEL,	2157	data => WF_AUTOCANCEL,
1274	cb => sub {	2158	cb => sub {
		2159	unless ($FREEZE) {
1275	cf::server_tick; # one server iteration	2160	cf::server_tick; # one server iteration
		2161	$RUNTIME += $TICK;
		2162	}
1276		2163
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2164	$NEXT_TICK += $TICK;
1279		2165
1280	# if we are delayed by four ticks or more, skip them all	2166	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2168
1283	$TICK_WATCHER->at ($NEXT_TICK);	2169	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2170	$TICK_WATCHER->start;
1285	},	2171	},
1286	);	2172	);
1287		2173
1288	IO::AIO::max_poll_time $TICK * 0.2;	2174	IO::AIO::max_poll_time $TICK * 0.2;
1289		2175
		2176	Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	2177	fd => IO::AIO::poll_fileno,
1291	poll => 'r',	2178	poll => 'r',
1292	prio => 5,	2179	prio => 5,
1293	data => WF_AUTOCANCEL,	2180	data => WF_AUTOCANCEL,
1294	cb => \&IO::AIO::poll_cb);	2181	cb => \&IO::AIO::poll_cb,
		2182	);
		2183
		2184	Event->timer (
		2185	data => WF_AUTOCANCEL,
		2186	after => 0,
		2187	interval => 10,
		2188	cb => sub {
		2189	(Coro::unblock_sub {
		2190	write_runtime
		2191	or warn "ERROR: unable to write runtime file: $!";
		2192	})->();
		2193	},
		2194	);
1295		2195
1296	1	2196	1
1297		2197

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs. Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC