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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 2007 UTC vs.
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC

4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.3 (); 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
21use Coro::Storable;
19 22
23use BDB ();
20use Data::Dumper; 24use Data::Dumper;
21use Digest::MD5; 25use Digest::MD5;
22use Fcntl; 26use Fcntl;
27use YAML::Syck ();
23use IO::AIO 2.32 (); 28use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 29use Time::HiRes;
30use Compress::LZF;
26 31
32# configure various modules to our taste
33#
34$Storable::canonical = 1; # reduce rsync transfers
35Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
36Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
37
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 38$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 39
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 40# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 41$YAML::Syck::ImplicitUnicode = 1;
33 42
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 43$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
44
45sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 46
36our %COMMAND = (); 47our %COMMAND = ();
37our %COMMAND_TIME = (); 48our %COMMAND_TIME = ();
38 49
39our @EXTS = (); # list of extension package names 50our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 51our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 52our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 53our %EXT_MAP = (); # pluggable maps
43 54
55our $RELOAD; # number of reloads so far
44our @EVENT; 56our @EVENT;
45our $LIBDIR = datadir . "/ext"; 57our $LIBDIR = datadir . "/ext";
46 58
47our $TICK = MAX_TIME * 1e-6; 59our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 60our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 61our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 62our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 63our $NEXT_TICK;
52our $NOW; 64our $NOW;
65our $USE_FSYNC = 1; # use fsync to write maps - default off
66
67our $BDB_POLL_WATCHER;
68our $DB_ENV;
53 69
54our %CFG; 70our %CFG;
55 71
56our $UPTIME; $UPTIME ||= time; 72our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 73our $RUNTIME;
58 74
59our %PLAYER; # all users 75our %PLAYER; # all users
60our %MAP; # all maps 76our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 77our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 78our $RANDOM_MAPS = cf::localdir . "/random";
79our $BDB_ENV_DIR = cf::localdir . "/db";
63 80
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 81our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 82our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 83
67# used to convert map paths into valid unix filenames by replacing / by ∕ 84# used to convert map paths into valid unix filenames by replacing / by ∕
80mkdir cf::localdir; 97mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 98mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 99mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 100mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 101mkdir $RANDOM_MAPS;
102mkdir $BDB_ENV_DIR;
85 103
86our $EMERGENCY_POSITION; 104our $EMERGENCY_POSITION;
105
106sub cf::map::normalise;
87 107
88############################################################################# 108#############################################################################
89 109
90=head2 GLOBAL VARIABLES 110=head2 GLOBAL VARIABLES
91 111
190 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 210 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191 $d 211 $d
192 } || "[unable to dump $_[0]: '$@']"; 212 } || "[unable to dump $_[0]: '$@']";
193} 213}
194 214
195use JSON::Syck (); # TODO# replace by JSON::PC once working 215use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196 216
197=item $ref = cf::from_json $json 217=item $ref = cf::from_json $json
198 218
199Converts a JSON string into the corresponding perl data structure. 219Converts a JSON string into the corresponding perl data structure.
200 220
201=cut
202
203sub from_json($) {
204 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205 JSON::Syck::Load $_[0]
206}
207
208=item $json = cf::to_json $ref 221=item $json = cf::to_json $ref
209 222
210Converts a perl data structure into its JSON representation. 223Converts a perl data structure into its JSON representation.
211
212=cut
213
214sub to_json($) {
215 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216 JSON::Syck::Dump $_[0]
217}
218 224
219=item cf::lock_wait $string 225=item cf::lock_wait $string
220 226
221Wait until the given lock is available. See cf::lock_acquire. 227Wait until the given lock is available. See cf::lock_acquire.
222 228
261sub freeze_mainloop { 267sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 268 return unless $TICK_WATCHER->is_active;
263 269
264 my $guard = Coro::guard { 270 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 271 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 272 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 273 $TICK_WATCHER->stop;
270 $guard 274 $guard
271} 275}
272 276
273=item cf::async { BLOCK } 277=item cf::async { BLOCK }
344 348
345 $coro 349 $coro
346} 350}
347 351
348sub write_runtime { 352sub write_runtime {
353 my $guard = cf::lock_acquire "write_runtime";
354
349 my $runtime = cf::localdir . "/runtime"; 355 my $runtime = cf::localdir . "/runtime";
350 356
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 357 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 358 or return;
353 359
360 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 361 # 10 is the runtime save interval, for a monotonic clock
362 # 60 allows for the watchdog to kill the server.
363
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 364 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 365 and return;
357 366
367 # always fsync - this file is important
358 aio_fsync $fh 368 aio_fsync $fh
359 and return; 369 and return;
360 370
361 close $fh 371 close $fh
362 or return; 372 or return;
363 373
364 aio_rename "$runtime~", $runtime 374 aio_rename "$runtime~", $runtime
365 and return; 375 and return;
366 376
367 1 377 1
378}
379
380=item cf::datalog type => key => value, ...
381
382Log a datalog packet of the given type with the given key-value pairs.
383
384=cut
385
386sub datalog($@) {
387 my ($type, %kv) = @_;
388 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368} 389}
369 390
370=back 391=back
371 392
372=cut 393=cut
503our @CB_TYPE = (); # registry for type (cf-object class) based events 524our @CB_TYPE = (); # registry for type (cf-object class) based events
504our @CB_MAP = (); 525our @CB_MAP = ();
505 526
506my %attachment; 527my %attachment;
507 528
529sub cf::attachable::thawer_merge {
530 # simply override everything except _meta
531 local $_[0]{_meta};
532 %{$_[0]} = %{$_[1]};
533}
534
508sub _attach_cb($$$$) { 535sub _attach_cb($$$$) {
509 my ($registry, $event, $prio, $cb) = @_; 536 my ($registry, $event, $prio, $cb) = @_;
510 537
511 use sort 'stable'; 538 use sort 'stable';
512 539
741 $filename, length $$rdata, scalar @$objs; 768 $filename, length $$rdata, scalar @$objs;
742 769
743 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 770 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744 chmod SAVE_MODE, $fh; 771 chmod SAVE_MODE, $fh;
745 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 772 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746 aio_fsync $fh; 773 aio_fsync $fh if $cf::USE_FSYNC;
747 close $fh; 774 close $fh;
748 775
749 if (@$objs) { 776 if (@$objs) {
750 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 777 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
751 chmod SAVE_MODE, $fh; 778 chmod SAVE_MODE, $fh;
752 my $data = Storable::nfreeze { version => 1, objs => $objs }; 779 my $data = Storable::nfreeze { version => 1, objs => $objs };
753 aio_write $fh, 0, (length $data), $data, 0; 780 aio_write $fh, 0, (length $data), $data, 0;
754 aio_fsync $fh; 781 aio_fsync $fh if $cf::USE_FSYNC;
755 close $fh; 782 close $fh;
756 aio_rename "$filename.pst~", "$filename.pst"; 783 aio_rename "$filename.pst~", "$filename.pst";
757 } 784 }
758 } else { 785 } else {
759 aio_unlink "$filename.pst"; 786 aio_unlink "$filename.pst";
938} 965}
939 966
940sub path($) { 967sub path($) {
941 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 968 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942 969
943 (playerdir $login) . "/$login.pl" 970 (playerdir $login) . "/playerdata"
944} 971}
945 972
946sub find_active($) { 973sub find_active($) {
947 $cf::PLAYER{$_[0]} 974 $cf::PLAYER{$_[0]}
948 and $cf::PLAYER{$_[0]}->active 975 and $cf::PLAYER{$_[0]}->active
951 978
952sub exists($) { 979sub exists($) {
953 my ($login) = @_; 980 my ($login) = @_;
954 981
955 $cf::PLAYER{$login} 982 $cf::PLAYER{$login}
956 or cf::sync_job { !aio_stat $login } 983 or cf::sync_job { !aio_stat path $login }
957} 984}
958 985
959sub find($) { 986sub find($) {
960 return $cf::PLAYER{$_[0]} || do { 987 return $cf::PLAYER{$_[0]} || do {
961 my $login = $_[0]; 988 my $login = $_[0];
962 989
963 my $guard = cf::lock_acquire "user_find:$login"; 990 my $guard = cf::lock_acquire "user_find:$login";
964 991
965 $cf::PLAYER{$_[0]} || do { 992 $cf::PLAYER{$_[0]} || do {
993 # rename old playerfiles to new ones
994 #TODO: remove when no longer required
995 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997 aio_unlink +(playerdir $login) . "/$login.pl.pst";
998 aio_unlink +(playerdir $login) . "/$login.pl";
999
966 my $pl = load_pl path $login 1000 my $pl = load_pl path $login
967 or return; 1001 or return;
968 $cf::PLAYER{$login} = $pl 1002 $cf::PLAYER{$login} = $pl
969 } 1003 }
970 } 1004 }
1007 1041
1008=cut 1042=cut
1009 1043
1010sub quit_character { 1044sub quit_character {
1011 my ($pl) = @_; 1045 my ($pl) = @_;
1046
1047 my $name = $pl->ob->name;
1012 1048
1013 $pl->{deny_save} = 1; 1049 $pl->{deny_save} = 1;
1014 $pl->password ("*"); # this should lock out the player until we nuked the dir 1050 $pl->password ("*"); # this should lock out the player until we nuked the dir
1015 1051
1016 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1052 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1021 my $path = playerdir $pl; 1057 my $path = playerdir $pl;
1022 my $temp = "$path~$cf::RUNTIME~deleting~"; 1058 my $temp = "$path~$cf::RUNTIME~deleting~";
1023 aio_rename $path, $temp; 1059 aio_rename $path, $temp;
1024 delete $cf::PLAYER{$pl->ob->name}; 1060 delete $cf::PLAYER{$pl->ob->name};
1025 $pl->destroy; 1061 $pl->destroy;
1062
1063 my $prefix = qr<^~\Q$name\E/>;
1064
1065 # nuke player maps
1066 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1067
1026 IO::AIO::aio_rmtree $temp; 1068 IO::AIO::aio_rmtree $temp;
1069}
1070
1071=item $pl->kick
1072
1073Kicks a player out of the game. This destroys the connection.
1074
1075=cut
1076
1077sub kick {
1078 my ($pl, $kicker) = @_;
1079
1080 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1081 $pl->killer ("kicked");
1082 $pl->ns->destroy;
1027} 1083}
1028 1084
1029=item cf::player::list_logins 1085=item cf::player::list_logins
1030 1086
1031Returns am arrayref of all valid playernames in the system, can take a 1087Returns am arrayref of all valid playernames in the system, can take a
1059=cut 1115=cut
1060 1116
1061sub maps($) { 1117sub maps($) {
1062 my ($pl) = @_; 1118 my ($pl) = @_;
1063 1119
1120 $pl = ref $pl ? $pl->ob->name : $pl;
1121
1064 my $files = aio_readdir playerdir $pl 1122 my $files = aio_readdir playerdir $pl
1065 or return; 1123 or return;
1066 1124
1067 my @paths; 1125 my @paths;
1068 1126
1069 for (@$files) { 1127 for (@$files) {
1070 utf8::decode $_; 1128 utf8::decode $_;
1071 next if /\.(?:pl|pst)$/; 1129 next if /\.(?:pl|pst)$/;
1072 next unless /^$PATH_SEP/o; 1130 next unless /^$PATH_SEP/o;
1073 1131
1074 s/\.map$//; 1132 push @paths, cf::map::normalise "~$pl/$_";
1075 push @paths, "~" . $pl->ob->name . "/" . $_;
1076 } 1133 }
1077 1134
1078 \@paths 1135 \@paths
1079} 1136}
1080 1137
1081=item $player->ext_reply ($msgid, $msgtype, %msg) 1138=item $player->ext_reply ($msgid, %msg)
1082 1139
1083Sends an ext reply to the player. 1140Sends an ext reply to the player.
1084 1141
1085=cut 1142=cut
1086 1143
1087sub ext_reply($$$%) { 1144sub ext_reply($$%) {
1088 my ($self, $id, %msg) = @_; 1145 my ($self, $id, %msg) = @_;
1089 1146
1090 $msg{msgid} = $id; 1147 $msg{msgid} = $id;
1091 1148
1092 $self->send ("ext " . cf::to_json \%msg); 1149 $self->send ("ext " . cf::to_json \%msg);
1150}
1151
1152=item $player->ext_event ($type, %msg)
1153
1154Sends an ext event to the client.
1155
1156=cut
1157
1158sub ext_event($$%) {
1159 my ($self, $type, %msg) = @_;
1160
1161 $self->ns->ext_event ($type, %msg);
1093} 1162}
1094 1163
1095package cf; 1164package cf;
1096 1165
1097=back 1166=back
1107 1176
1108use Fcntl; 1177use Fcntl;
1109use Coro::AIO; 1178use Coro::AIO;
1110 1179
1111use overload 1180use overload
1112 '""' => \&as_string; 1181 '""' => \&as_string,
1182 fallback => 1;
1113 1183
1114our $MAX_RESET = 3600; 1184our $MAX_RESET = 3600;
1115our $DEFAULT_RESET = 3000; 1185our $DEFAULT_RESET = 3000;
1116 1186
1117sub generate_random_map { 1187sub generate_random_map {
1118 my ($self, $rmp) = @_; 1188 my ($self, $rmp) = @_;
1119
1120 # mit "rum" bekleckern, nicht 1189 # mit "rum" bekleckern, nicht
1121 $self->_create_random_map ( 1190 $self->_create_random_map (
1122 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1191 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1192 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1124 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1193 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1200 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132 (cf::region::find $rmp->{region}), $rmp->{custom} 1201 (cf::region::find $rmp->{region}), $rmp->{custom}
1133 ) 1202 )
1134} 1203}
1135 1204
1205=item cf::map->register ($regex, $prio)
1206
1207Register a handler for the map path matching the given regex at the
1208givne priority (higher is better, built-in handlers have priority 0, the
1209default).
1210
1211=cut
1212
1136sub register { 1213sub register {
1137 my (undef, $regex) = @_; 1214 my (undef, $regex, $prio) = @_;
1138 my $pkg = caller; 1215 my $pkg = caller;
1139 1216
1140 no strict; 1217 no strict;
1141 push @{"$pkg\::ISA"}, __PACKAGE__; 1218 push @{"$pkg\::ISA"}, __PACKAGE__;
1142 1219
1143 $EXT_MAP{$pkg} = qr<$regex>; 1220 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144} 1221}
1145 1222
1146# also paths starting with '/' 1223# also paths starting with '/'
1147$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1224$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1225
1226sub thawer_merge {
1227 my ($self, $merge) = @_;
1228
1229 # we have to keep some variables in memory intact
1230 local $self->{path};
1231 local $self->{load_path};
1232 local $self->{deny_save};
1233 local $self->{deny_reset};
1234
1235 $self->SUPER::thawer_merge ($merge);
1236}
1148 1237
1149sub normalise { 1238sub normalise {
1150 my ($path, $base) = @_; 1239 my ($path, $base) = @_;
1240
1241 $path = "$path"; # make sure its a string
1242
1243 $path =~ s/\.map$//;
1151 1244
1152 # map plan: 1245 # map plan:
1153 # 1246 #
1154 # /! non-realised random map exit (special hack!) 1247 # /! non-realised random map exit (special hack!)
1155 # {... are special paths that are not being touched 1248 # {... are special paths that are not being touched
1183 1276
1184 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1277 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185 1278
1186 $path = normalise $path, $base; 1279 $path = normalise $path, $base;
1187 1280
1188 for my $pkg (keys %EXT_MAP) { 1281 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189 if ($path =~ $EXT_MAP{$pkg}) { 1282 if ($path =~ $EXT_MAP{$pkg}[1]) {
1190 my $self = bless cf::map::new, $pkg; 1283 my $self = bless cf::map::new, $pkg;
1191 $self->{path} = $path; $self->path ($path); 1284 $self->{path} = $path; $self->path ($path);
1192 $self->init; # pass $1 etc. 1285 $self->init; # pass $1 etc.
1193 return $self; 1286 return $self;
1194 } 1287 }
1195 } 1288 }
1196 1289
1197 Carp::carp "unable to resolve path '$path'."; 1290 Carp::carp "unable to resolve path '$path' (base '$base').";
1198 () 1291 ()
1199} 1292}
1200 1293
1201sub init { 1294sub init {
1202 my ($self) = @_; 1295 my ($self) = @_;
1217 1310
1218# the original (read-only) location 1311# the original (read-only) location
1219sub load_path { 1312sub load_path {
1220 my ($self) = @_; 1313 my ($self) = @_;
1221 1314
1222 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1315 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1223} 1316}
1224 1317
1225# the temporary/swap location 1318# the temporary/swap location
1226sub save_path { 1319sub save_path {
1227 my ($self) = @_; 1320 my ($self) = @_;
1228 1321
1229 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1322 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1230 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1323 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1231} 1324}
1232 1325
1233# the unique path, undef == no special unique path 1326# the unique path, undef == no special unique path
1234sub uniq_path { 1327sub uniq_path {
1235 my ($self) = @_; 1328 my ($self) = @_;
1249 1342
1250sub unlink_save { 1343sub unlink_save {
1251 my ($self) = @_; 1344 my ($self) = @_;
1252 1345
1253 utf8::encode (my $save = $self->save_path); 1346 utf8::encode (my $save = $self->save_path);
1254 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1347 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1348 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256} 1349}
1257 1350
1258sub load_header_from($) { 1351sub load_header_from($) {
1259 my ($self, $path) = @_; 1352 my ($self, $path) = @_;
1260 1353
1261 utf8::encode $path; 1354 utf8::encode $path;
1262 aio_open $path, O_RDONLY, 0 1355 #aio_open $path, O_RDONLY, 0
1263 or return; 1356 # or return;
1264 1357
1265 $self->_load_header ($path) 1358 $self->_load_header ($path)
1266 or return; 1359 or return;
1267 1360
1268 $self->{load_path} = $path; 1361 $self->{load_path} = $path;
1269 1362
1270 1 1363 1
1271} 1364}
1272 1365
1273sub load_orig { 1366sub load_header_orig {
1274 my ($self) = @_; 1367 my ($self) = @_;
1275 1368
1276 $self->load_header_from ($self->load_path) 1369 $self->load_header_from ($self->load_path)
1277} 1370}
1278 1371
1279sub load_temp { 1372sub load_header_temp {
1280 my ($self) = @_; 1373 my ($self) = @_;
1281 1374
1282 $self->load_header_from ($self->save_path) 1375 $self->load_header_from ($self->save_path)
1376}
1377
1378sub prepare_temp {
1379 my ($self) = @_;
1380
1381 $self->last_access ((delete $self->{last_access})
1382 || $cf::RUNTIME); #d#
1383 # safety
1384 $self->{instantiate_time} = $cf::RUNTIME
1385 if $self->{instantiate_time} > $cf::RUNTIME;
1386}
1387
1388sub prepare_orig {
1389 my ($self) = @_;
1390
1391 $self->{load_original} = 1;
1392 $self->{instantiate_time} = $cf::RUNTIME;
1393 $self->last_access ($cf::RUNTIME);
1394 $self->instantiate;
1283} 1395}
1284 1396
1285sub load_header { 1397sub load_header {
1286 my ($self) = @_; 1398 my ($self) = @_;
1287 1399
1288 if ($self->load_temp) { 1400 if ($self->load_header_temp) {
1289 $self->last_access ((delete $self->{last_access}) 1401 $self->prepare_temp;
1290 || $cf::RUNTIME); #d#
1291 # safety
1292 $self->{instantiate_time} = $cf::RUNTIME
1293 if $self->{instantiate_time} > $cf::RUNTIME;
1294 } else { 1402 } else {
1295 $self->load_orig 1403 $self->load_header_orig
1296 or return; 1404 or return;
1297 1405 $self->prepare_orig;
1298 $self->{load_original} = 1;
1299 $self->{instantiate_time} = $cf::RUNTIME;
1300 $self->last_access ($cf::RUNTIME);
1301 $self->instantiate;
1302 } 1406 }
1303 1407
1304 1 1408 1
1305} 1409}
1306 1410
1320 $map->{last_save} = $cf::RUNTIME; 1424 $map->{last_save} = $cf::RUNTIME;
1321 1425
1322 $map->load_header 1426 $map->load_header
1323 or return; 1427 or return;
1324 1428
1325 if ($map->should_reset) { 1429 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1430 # doing this can freeze the server in a sync job, obviously
1431 #$cf::WAIT_FOR_TICK->wait;
1326 $map->reset; 1432 $map->reset;
1327 undef $guard; 1433 undef $guard;
1328 $map = find $path 1434 return find $path;
1329 or return;
1330 } 1435 }
1331 1436
1332 $cf::MAP{$path} = $map 1437 $cf::MAP{$path} = $map
1333 } 1438 }
1334} 1439}
1440
1441sub pre_load { }
1442sub post_load { }
1335 1443
1336sub load { 1444sub load {
1337 my ($self) = @_; 1445 my ($self) = @_;
1338 1446
1447 local $self->{deny_reset} = 1; # loading can take a long time
1448
1339 my $path = $self->{path}; 1449 my $path = $self->{path};
1340 my $guard = cf::lock_acquire "map_load:$path"; 1450 my $guard = cf::lock_acquire "map_load:$path";
1341 1451
1342 return if $self->in_memory != cf::MAP_SWAPPED; 1452 return if $self->in_memory != cf::MAP_SWAPPED;
1343 1453
1344 $self->in_memory (cf::MAP_LOADING); 1454 $self->in_memory (cf::MAP_LOADING);
1345 1455
1346 $self->alloc; 1456 $self->alloc;
1457
1458 $self->pre_load;
1459
1347 $self->_load_objects ($self->{load_path}, 1) 1460 $self->_load_objects ($self->{load_path}, 1)
1348 or return; 1461 or return;
1349 1462
1350 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1463 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1351 if delete $self->{load_original}; 1464 if delete $self->{load_original};
1373 unless $self->difficulty; 1486 unless $self->difficulty;
1374 Coro::cede; 1487 Coro::cede;
1375 $self->activate; 1488 $self->activate;
1376 } 1489 }
1377 1490
1491 $self->post_load;
1492
1378 $self->in_memory (cf::MAP_IN_MEMORY); 1493 $self->in_memory (cf::MAP_IN_MEMORY);
1379} 1494}
1380 1495
1381sub customise_for { 1496sub customise_for {
1382 my ($self, $ob) = @_; 1497 my ($self, $ob) = @_;
1422 1537
1423 cf::sync_job { $map->load }; 1538 cf::sync_job { $map->load };
1424} 1539}
1425 1540
1426our %MAP_PREFETCH; 1541our %MAP_PREFETCH;
1427our $MAP_PREFETCHER = Coro::async { 1542our $MAP_PREFETCHER = undef;
1428 while () {
1429 for my $path (keys %MAP_PREFETCH) {
1430 my $map = find $path
1431 or next;
1432 $map->load;
1433
1434 delete $MAP_PREFETCH{$path};
1435 }
1436 Coro::schedule;
1437 }
1438};
1439 1543
1440sub find_async { 1544sub find_async {
1441 my ($path, $origin) = @_; 1545 my ($path, $origin) = @_;
1442 1546
1443 $path = normalise $path, $origin && $origin->{path}; 1547 $path = normalise $path, $origin && $origin->{path};
1444 1548
1445 if (my $map = $cf::MAP{$path}) { 1549 if (my $map = $cf::MAP{$path}) {
1446 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1550 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1447 } 1551 }
1448 1552
1449 $MAP_PREFETCH{$path} = 0; 1553 undef $MAP_PREFETCH{$path};
1554 $MAP_PREFETCHER ||= cf::async {
1555 while (%MAP_PREFETCH) {
1556 for my $path (keys %MAP_PREFETCH) {
1557 my $map = find $path
1558 or next;
1559 $map->load;
1560
1561 delete $MAP_PREFETCH{$path};
1562 }
1563 }
1564 undef $MAP_PREFETCHER;
1565 };
1450 $MAP_PREFETCHER->ready; 1566 $MAP_PREFETCHER->prio (6);
1451 1567
1452 () 1568 ()
1453} 1569}
1454 1570
1455sub save { 1571sub save {
1515 my ($self) = @_; 1631 my ($self) = @_;
1516 1632
1517 $self->reset_at <= $cf::RUNTIME 1633 $self->reset_at <= $cf::RUNTIME
1518} 1634}
1519 1635
1520sub rename {
1521 my ($self, $new_path) = @_;
1522
1523 normalise $new_path;
1524
1525 $self->unlink_save;
1526
1527 delete $cf::MAP{$self->path};
1528 $self->{path} = $new_path; $self->path ($self->{path});
1529 $cf::MAP{$self->path} = $self;
1530
1531 $self->save;
1532}
1533
1534sub reset { 1636sub reset {
1535 my ($self) = @_; 1637 my ($self) = @_;
1536 1638
1537 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1639 my $lock = cf::lock_acquire "map_data:$self->{path}";
1538 1640
1539 return if $self->players; 1641 return if $self->players;
1540 return if $self->isa ("ext::map_per_player");#d# 1642 return if $self->isa ("ext::map_per_player");#d#
1541 1643
1542 warn "resetting map ", $self->path;#d# 1644 warn "resetting map ", $self->path;#d#
1543 1645
1646 $self->in_memory (cf::MAP_SWAPPED);
1647
1648 # need to save uniques path
1649 unless ($self->{deny_save}) {
1650 my $uniq = $self->uniq_path; utf8::encode $uniq;
1651
1652 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1653 if $uniq;
1654 }
1655
1544 delete $cf::MAP{$self->path}; 1656 delete $cf::MAP{$self->path};
1545 1657
1546 $self->in_memory (cf::MAP_SWAPPED);
1547 $self->clear; 1658 $self->clear;
1548 1659
1549 $_->clear_links_to ($self) for values %cf::MAP; 1660 $_->clear_links_to ($self) for values %cf::MAP;
1550 1661
1551 $self->unlink_save; 1662 $self->unlink_save;
1555my $nuke_counter = "aaaa"; 1666my $nuke_counter = "aaaa";
1556 1667
1557sub nuke { 1668sub nuke {
1558 my ($self) = @_; 1669 my ($self) = @_;
1559 1670
1671 delete $cf::MAP{$self->path};
1672
1673 $self->unlink_save;
1674
1675 bless $self, "cf::map";
1676 delete $self->{deny_reset};
1560 $self->{deny_save} = 1; 1677 $self->{deny_save} = 1;
1561 $self->reset_timeout (1); 1678 $self->reset_timeout (1);
1562 $self->rename ("{nuke}/" . ($nuke_counter++)); 1679 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1680
1681 $cf::MAP{$self->path} = $self;
1682
1563 $self->reset; # polite request, might not happen 1683 $self->reset; # polite request, might not happen
1564} 1684}
1565 1685
1566=item cf::map::unique_maps 1686=item cf::map::unique_maps
1567 1687
1579 for (@$files) { 1699 for (@$files) {
1580 utf8::decode $_; 1700 utf8::decode $_;
1581 next if /\.pst$/; 1701 next if /\.pst$/;
1582 next unless /^$PATH_SEP/o; 1702 next unless /^$PATH_SEP/o;
1583 1703
1584 s/\.map$//; 1704 push @paths, cf::map::normalise $_;
1585 push @paths, $_;
1586 } 1705 }
1587 1706
1588 \@paths 1707 \@paths
1589} 1708}
1590 1709
1684=cut 1803=cut
1685 1804
1686sub link_map { 1805sub link_map {
1687 unless ($LINK_MAP) { 1806 unless ($LINK_MAP) {
1688 $LINK_MAP = cf::map::find "{link}" 1807 $LINK_MAP = cf::map::find "{link}"
1689 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1808 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690 $LINK_MAP->load; 1809 $LINK_MAP->load;
1691 } 1810 }
1692 1811
1693 $LINK_MAP 1812 $LINK_MAP
1694} 1813}
1701 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1820 return if UNIVERSAL::isa $self->map, "ext::map_link";
1702 1821
1703 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1822 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704 if $self->map; 1823 if $self->map;
1705 1824
1706 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1825 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1707} 1826}
1708 1827
1709sub cf::object::player::leave_link { 1828sub cf::object::player::leave_link {
1710 my ($self, $map, $x, $y) = @_; 1829 my ($self, $map, $x, $y) = @_;
1711 1830
1733 $map->load; 1852 $map->load;
1734 $map->load_diag; 1853 $map->load_diag;
1735 1854
1736 return unless $self->contr->active; 1855 return unless $self->contr->active;
1737 $self->activate_recursive; 1856 $self->activate_recursive;
1857
1858 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738 $self->enter_map ($map, $x, $y); 1859 $self->enter_map ($map, $x, $y);
1739} 1860}
1740 1861
1741cf::player->attach ( 1862cf::player->attach (
1742 on_logout => sub { 1863 on_logout => sub {
1755 # try to abort aborted map switching on player login :) 1876 # try to abort aborted map switching on player login :)
1756 # should happen only on crashes 1877 # should happen only on crashes
1757 if ($pl->ob->{_link_pos}) { 1878 if ($pl->ob->{_link_pos}) {
1758 $pl->ob->enter_link; 1879 $pl->ob->enter_link;
1759 (async { 1880 (async {
1760 # we need this sleep as the login has a concurrent enter_exit running
1761 # and this sleep increases chances of the player not ending up in scorn
1762 $pl->ob->reply (undef, 1881 $pl->ob->reply (undef,
1763 "There was an internal problem at your last logout, " 1882 "There was an internal problem at your last logout, "
1764 . "the server will try to bring you to your intended destination in a second.", 1883 . "the server will try to bring you to your intended destination in a second.",
1765 cf::NDI_RED); 1884 cf::NDI_RED);
1885 # we need this sleep as the login has a concurrent enter_exit running
1886 # and this sleep increases chances of the player not ending up in scorn
1766 Coro::Timer::sleep 1; 1887 Coro::Timer::sleep 1;
1767 $pl->ob->leave_link; 1888 $pl->ob->leave_link;
1768 })->prio (2); 1889 })->prio (2);
1769 } 1890 }
1770 }, 1891 },
1778 my ($self, $path, $x, $y) = @_; 1899 my ($self, $path, $x, $y) = @_;
1779 1900
1780 $self->enter_link; 1901 $self->enter_link;
1781 1902
1782 (async { 1903 (async {
1904 my $map = eval {
1783 my $map = cf::map::find $path; 1905 my $map = cf::map::find $path;
1784 $map = $map->customise_for ($self) if $map; 1906 $map = $map->customise_for ($self) if $map;
1785 1907 $map
1786# warn "entering ", $map->path, " at ($x, $y)\n" 1908 } or
1787# if $map;
1788
1789 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1909 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1790 1910
1791 $self->leave_link ($map, $x, $y); 1911 $self->leave_link ($map, $x, $y);
1792 })->prio (1); 1912 })->prio (1);
1793} 1913}
1794 1914
1798 1918
1799sub parse_random_map_params { 1919sub parse_random_map_params {
1800 my ($spec) = @_; 1920 my ($spec) = @_;
1801 1921
1802 my $rmp = { # defaults 1922 my $rmp = { # defaults
1803 xsize => 10, 1923 xsize => (cf::rndm 15, 40),
1804 ysize => 10, 1924 ysize => (cf::rndm 15, 40),
1925 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1926 #layout => string,
1805 }; 1927 };
1806 1928
1807 for (split /\n/, $spec) { 1929 for (split /\n/, $spec) {
1808 my ($k, $v) = split /\s+/, $_, 2; 1930 my ($k, $v) = split /\s+/, $_, 2;
1809 1931
1813 $rmp 1935 $rmp
1814} 1936}
1815 1937
1816sub prepare_random_map { 1938sub prepare_random_map {
1817 my ($exit) = @_; 1939 my ($exit) = @_;
1940
1941 my $guard = cf::lock_acquire "exit_prepare:$exit";
1818 1942
1819 # all this does is basically replace the /! path by 1943 # all this does is basically replace the /! path by
1820 # a new random map path (?random/...) with a seed 1944 # a new random map path (?random/...) with a seed
1821 # that depends on the exit object 1945 # that depends on the exit object
1822 1946
1823 my $rmp = parse_random_map_params $exit->msg; 1947 my $rmp = parse_random_map_params $exit->msg;
1824 1948
1825 if ($exit->map) { 1949 if ($exit->map) {
1826 $rmp->{region} = $exit->map->region_name; 1950 $rmp->{region} = $exit->region->name;
1827 $rmp->{origin_map} = $exit->map->path; 1951 $rmp->{origin_map} = $exit->map->path;
1828 $rmp->{origin_x} = $exit->x; 1952 $rmp->{origin_x} = $exit->x;
1829 $rmp->{origin_y} = $exit->y; 1953 $rmp->{origin_y} = $exit->y;
1830 } 1954 }
1831 1955
1832 $rmp->{random_seed} ||= $exit->random_seed; 1956 $rmp->{random_seed} ||= $exit->random_seed;
1833 1957
1834 my $data = cf::to_json $rmp; 1958 my $data = cf::to_json $rmp;
1835 my $md5 = Digest::MD5::md5_hex $data; 1959 my $md5 = Digest::MD5::md5_hex $data;
1960 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1836 1961
1837 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1962 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1838 aio_write $fh, 0, (length $data), $data, 0; 1963 aio_write $fh, 0, (length $data), $data, 0;
1964 undef $fh;
1965 aio_rename "$meta~", $meta;
1839 1966
1840 $exit->slaying ("?random/$md5"); 1967 $exit->slaying ("?random/$md5");
1841 $exit->msg (undef); 1968 $exit->msg (undef);
1842 } 1969 }
1843} 1970}
1844 1971
1845sub cf::object::player::enter_exit { 1972sub cf::object::player::enter_exit {
1846 my ($self, $exit) = @_; 1973 my ($self, $exit) = @_;
1847 1974
1848 return unless $self->type == cf::PLAYER; 1975 return unless $self->type == cf::PLAYER;
1976
1977 if ($exit->slaying eq "/!") {
1978 #TODO: this should de-fi-ni-te-ly not be a sync-job
1979 # the problem is that $exit might not survive long enough
1980 # so it needs to be done right now, right here
1981 cf::sync_job { prepare_random_map $exit };
1982 }
1983
1984 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985 my $hp = $exit->stats->hp;
1986 my $sp = $exit->stats->sp;
1849 1987
1850 $self->enter_link; 1988 $self->enter_link;
1851 1989
1852 (async { 1990 (async {
1853 $self->deactivate_recursive; # just to be sure 1991 $self->deactivate_recursive; # just to be sure
1854 unless (eval { 1992 unless (eval {
1855 prepare_random_map $exit 1993 $self->goto ($slaying, $hp, $sp);
1856 if $exit->slaying eq "/!";
1857
1858 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1859 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1860 1994
1861 1; 1995 1;
1862 }) { 1996 }) {
1863 $self->message ("Something went wrong deep within the crossfire server. " 1997 $self->message ("Something went wrong deep within the crossfire server. "
1864 . "I'll try to bring you back to the map you were before. " 1998 . "I'll try to bring you back to the map you were before. "
1865 . "Please report this to the dungeon master!", 1999 . "Please report this to the dungeon master!",
1866 cf::NDI_UNIQUE | cf::NDI_RED); 2000 cf::NDI_UNIQUE | cf::NDI_RED);
1867 2001
1868 warn "ERROR in enter_exit: $@"; 2002 warn "ERROR in enter_exit: $@";
1869 $self->leave_link; 2003 $self->leave_link;
1870 } 2004 }
1871 })->prio (1); 2005 })->prio (1);
1884 2018
1885sub cf::client::send_drawinfo { 2019sub cf::client::send_drawinfo {
1886 my ($self, $text, $flags) = @_; 2020 my ($self, $text, $flags) = @_;
1887 2021
1888 utf8::encode $text; 2022 utf8::encode $text;
1889 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2023 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890} 2024}
1891 2025
2026=item $client->ext_event ($type, %msg)
2027
2028Sends an exti event to the client.
2029
2030=cut
2031
2032sub cf::client::ext_event($$%) {
2033 my ($self, $type, %msg) = @_;
2034
2035 $msg{msgtype} = "event_$type";
2036 $self->send_packet ("ext " . cf::to_json \%msg);
2037}
1892 2038
1893=item $success = $client->query ($flags, "text", \&cb) 2039=item $success = $client->query ($flags, "text", \&cb)
1894 2040
1895Queues a query to the client, calling the given callback with 2041Queues a query to the client, calling the given callback with
1896the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2042the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1925 # get handled first 2071 # get handled first
1926 my $queue = delete $ns->{query_queue} 2072 my $queue = delete $ns->{query_queue}
1927 or return; # be conservative, not sure how that can happen, but we saw a crash here 2073 or return; # be conservative, not sure how that can happen, but we saw a crash here
1928 2074
1929 (shift @$queue)->[1]->($msg); 2075 (shift @$queue)->[1]->($msg);
2076 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930 2077
1931 push @{ $ns->{query_queue} }, @$queue; 2078 push @{ $ns->{query_queue} }, @$queue;
1932 2079
1933 if (@{ $ns->{query_queue} } == @$queue) { 2080 if (@{ $ns->{query_queue} } == @$queue) {
1934 if (@$queue) { 2081 if (@$queue) {
1992 2139
1993# here we export the classes and methods available to script code 2140# here we export the classes and methods available to script code
1994 2141
1995=pod 2142=pod
1996 2143
1997The following fucntions and emthods are available within a safe environment: 2144The following functions and methods are available within a safe environment:
1998 2145
1999 cf::object contr pay_amount pay_player map 2146 cf::object contr pay_amount pay_player map
2000 cf::object::player player 2147 cf::object::player player
2001 cf::player peaceful 2148 cf::player peaceful
2002 cf::map trigger 2149 cf::map trigger
2095The parameter C<$family> should best start with the name of the extension 2242The parameter C<$family> should best start with the name of the extension
2096using it, it should be unique. 2243using it, it should be unique.
2097 2244
2098=over 4 2245=over 4
2099 2246
2100=item $hashref = cf::db_get $family
2101
2102Return a hashref for use by the extension C<$family>, which can be
2103modified. After modifications, you have to call C<cf::db_dirty> or
2104C<cf::db_sync>.
2105
2106=item $value = cf::db_get $family => $key 2247=item $value = cf::db_get $family => $key
2107 2248
2108Returns a single value from the database 2249Returns a single value from the database.
2109
2110=item cf::db_put $family => $hashref
2111
2112Stores the given family hashref into the database. Updates are delayed, if
2113you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114 2250
2115=item cf::db_put $family => $key => $value 2251=item cf::db_put $family => $key => $value
2116 2252
2117Stores the given C<$value> in the family hash. Updates are delayed, if you 2253Stores the given C<$value> in the family.
2118want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120=item cf::db_dirty
2121
2122Marks the database as dirty, to be updated at a later time.
2123
2124=item cf::db_sync
2125
2126Immediately write the database to disk I<if it is dirty>.
2127 2254
2128=cut 2255=cut
2129 2256
2130our $DB; 2257our $DB;
2131 2258
2132{ 2259sub db_init {
2260 unless ($DB) {
2261 $DB = BDB::db_create $DB_ENV;
2262
2263 cf::sync_job {
2264 eval {
2265 $DB->set_flags (BDB::CHKSUM);
2266
2267 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269 cf::cleanup "db_open(db): $!" if $!;
2270 };
2271 cf::cleanup "db_open(db): $@" if $@;
2272 };
2273
2133 my $path = cf::localdir . "/database.pst"; 2274 my $path = cf::localdir . "/database.pst";
2275 if (stat $path) {
2276 cf::sync_job {
2277 my $pst = Storable::retrieve $path;
2134 2278
2135 sub db_load() { 2279 cf::db_put (board => data => $pst->{board});
2136 $DB = stat $path ? Storable::retrieve $path : { }; 2280 cf::db_put (guildrules => data => $pst->{guildrules});
2137 } 2281 cf::db_put (rent => balance => $pst->{rent}{balance});
2282 BDB::db_env_txn_checkpoint $DB_ENV;
2138 2283
2139 my $pid; 2284 unlink $path;
2140
2141 sub db_save() {
2142 waitpid $pid, 0 if $pid;
2143 if (0 == ($pid = fork)) {
2144 $DB->{_meta}{version} = 1;
2145 Storable::nstore $DB, "$path~";
2146 rename "$path~", $path;
2147 cf::_exit 0 if defined $pid;
2148 } 2285 };
2149 }
2150
2151 my $dirty;
2152
2153 sub db_sync() {
2154 db_save if $dirty;
2155 undef $dirty;
2156 }
2157
2158 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159 db_sync;
2160 });
2161
2162 sub db_dirty() {
2163 $dirty = 1;
2164 $idle->start;
2165 }
2166
2167 sub db_get($;$) {
2168 @_ >= 2
2169 ? $DB->{$_[0]}{$_[1]}
2170 : ($DB->{$_[0]} ||= { })
2171 }
2172
2173 sub db_put($$;$) {
2174 if (@_ >= 3) {
2175 $DB->{$_[0]}{$_[1]} = $_[2];
2176 } else {
2177 $DB->{$_[0]} = $_[1];
2178 }
2179 db_dirty;
2180 }
2181
2182 cf::global->attach (
2183 prio => 10000,
2184 on_cleanup => sub {
2185 db_sync;
2186 }, 2286 }
2187 ); 2287 }
2288}
2289
2290sub db_get($$) {
2291 my $key = "$_[0]/$_[1]";
2292
2293 cf::sync_job {
2294 BDB::db_get $DB, undef, $key, my $data;
2295
2296 $! ? ()
2297 : Compress::LZF::sthaw $data
2298 }
2299}
2300
2301sub db_put($$$) {
2302 BDB::dbreq_pri 4;
2303 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2188} 2304}
2189 2305
2190############################################################################# 2306#############################################################################
2191# the server's main() 2307# the server's init and main functions
2308
2309sub load_facedata {
2310 my $path = sprintf "%s/facedata", cf::datadir;
2311
2312 warn "loading facedata from $path\n";
2313
2314 my $facedata;
2315 0 < aio_load $path, $facedata
2316 or die "$path: $!";
2317
2318 $facedata = Coro::Storable::thaw $facedata;
2319
2320 $facedata->{version} == 2
2321 or cf::cleanup "$path: version mismatch, cannot proceed.";
2322
2323 {
2324 my $faces = $facedata->{faceinfo};
2325
2326 while (my ($face, $info) = each %$faces) {
2327 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2328 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2329 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2330 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2331 Coro::cede;
2332 }
2333
2334 while (my ($face, $info) = each %$faces) {
2335 next unless $info->{smooth};
2336 my $idx = cf::face::find $face
2337 or next;
2338 if (my $smooth = cf::face::find $info->{smooth}) {
2339 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2340 } else {
2341 warn "smooth face '$info->{smooth}' not found for face '$face'";
2342 }
2343 Coro::cede;
2344 }
2345 }
2346
2347 {
2348 my $anims = $facedata->{animinfo};
2349
2350 while (my ($anim, $info) = each %$anims) {
2351 cf::anim::set $anim, $info->{frames}, $info->{facings};
2352 Coro::cede;
2353 }
2354
2355 cf::anim::invalidate_all; # d'oh
2356 }
2357
2358 1
2359}
2360
2361sub reload_resources {
2362 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2363 or die "unable to load regions file\n";#d#
2364 load_facedata
2365 or die "unable to load facedata\n";#d#
2366}
2367
2368sub init {
2369 reload_resources;
2370}
2192 2371
2193sub cfg_load { 2372sub cfg_load {
2194 open my $fh, "<:utf8", cf::confdir . "/config" 2373 open my $fh, "<:utf8", cf::confdir . "/config"
2195 or return; 2374 or return;
2196 2375
2213 2392
2214sub main { 2393sub main {
2215 # we must not ever block the main coroutine 2394 # we must not ever block the main coroutine
2216 local $Coro::idle = sub { 2395 local $Coro::idle = sub {
2217 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2396 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2397 (async {
2218 async { Event::one_event }; 2398 Event::one_event;
2399 })->prio (Coro::PRIO_MAX);
2219 }; 2400 };
2220 2401
2221 cfg_load; 2402 cfg_load;
2222 db_load; 2403 db_init;
2223 load_extensions; 2404 load_extensions;
2405
2406 $TICK_WATCHER->start;
2224 Event::loop; 2407 Event::loop;
2225} 2408}
2226 2409
2227############################################################################# 2410#############################################################################
2228# initialisation and cleanup 2411# initialisation and cleanup
2229 2412
2230# install some emergency cleanup handlers 2413# install some emergency cleanup handlers
2231BEGIN { 2414BEGIN {
2232 for my $signal (qw(INT HUP TERM)) { 2415 for my $signal (qw(INT HUP TERM)) {
2233 Event->signal ( 2416 Event->signal (
2417 reentrant => 0,
2234 data => WF_AUTOCANCEL, 2418 data => WF_AUTOCANCEL,
2235 signal => $signal, 2419 signal => $signal,
2420 prio => 0,
2236 cb => sub { 2421 cb => sub {
2237 cf::cleanup "SIG$signal"; 2422 cf::cleanup "SIG$signal";
2238 }, 2423 },
2239 ); 2424 );
2240 } 2425 }
2241} 2426}
2262 my $map = $cf::MAP{$path} or next; 2447 my $map = $cf::MAP{$path} or next;
2263 $map->valid or next; 2448 $map->valid or next;
2264 $map->save; 2449 $map->save;
2265 } 2450 }
2266 warn "end emergency map save\n"; 2451 warn "end emergency map save\n";
2452
2453 warn "begin emergency database checkpoint\n";
2454 BDB::db_env_txn_checkpoint $DB_ENV;
2455 warn "end emergency database checkpoint\n";
2267 }; 2456 };
2268 2457
2269 warn "leave emergency perl save\n"; 2458 warn "leave emergency perl save\n";
2459}
2460
2461sub post_cleanup {
2462 my ($make_core) = @_;
2463
2464 warn Carp::longmess "post_cleanup backtrace"
2465 if $make_core;
2270} 2466}
2271 2467
2272sub reload() { 2468sub reload() {
2273 # can/must only be called in main 2469 # can/must only be called in main
2274 if ($Coro::current != $Coro::main) { 2470 if ($Coro::current != $Coro::main) {
2275 warn "can only reload from main coroutine\n"; 2471 warn "can only reload from main coroutine";
2276 return; 2472 return;
2277 } 2473 }
2278 2474
2279 warn "reloading..."; 2475 warn "reloading...";
2280 2476
2281 warn "freezing server"; 2477 warn "entering sync_job";
2282 my $guard = freeze_mainloop; 2478
2479 cf::sync_job {
2480 cf::write_runtime; # external watchdog should not bark
2283 cf::emergency_save; 2481 cf::emergency_save;
2482 cf::write_runtime; # external watchdog should not bark
2284 2483
2285 warn "sync database to disk"; 2484 warn "syncing database to disk";
2286 cf::db_sync; 2485 BDB::db_env_txn_checkpoint $DB_ENV;
2287 IO::AIO::flush;
2288 2486
2289 eval {
2290 # if anything goes wrong in here, we should simply crash as we already saved 2487 # if anything goes wrong in here, we should simply crash as we already saved
2291 2488
2292 warn "cancel all watchers"; 2489 warn "cancelling all WF_AUTOCANCEL watchers";
2293 for (Event::all_watchers) { 2490 for (Event::all_watchers) {
2294 $_->cancel if $_->data & WF_AUTOCANCEL; 2491 $_->cancel if $_->data & WF_AUTOCANCEL;
2295 } 2492 }
2296 2493
2494 warn "flushing outstanding aio requests";
2495 for (;;) {
2496 BDB::flush;
2497 IO::AIO::flush;
2498 Coro::cede;
2499 last unless IO::AIO::nreqs || BDB::nreqs;
2500 warn "iterate...";
2501 }
2502
2503 ++$RELOAD;
2504
2297 warn "cancel all extension coros"; 2505 warn "cancelling all extension coros";
2298 $_->cancel for values %EXT_CORO; 2506 $_->cancel for values %EXT_CORO;
2299 %EXT_CORO = (); 2507 %EXT_CORO = ();
2300 2508
2301 warn "remove commands"; 2509 warn "removing commands";
2302 %COMMAND = (); 2510 %COMMAND = ();
2303 2511
2304 warn "remove ext commands"; 2512 warn "removing ext commands";
2305 %EXTCMD = (); 2513 %EXTCMD = ();
2306 2514
2307 warn "unload/nuke all extensions"; 2515 warn "unloading/nuking all extensions";
2308 for my $pkg (@EXTS) { 2516 for my $pkg (@EXTS) {
2309 warn "... unloading $pkg"; 2517 warn "... unloading $pkg";
2310 2518
2311 if (my $cb = $pkg->can ("unload")) { 2519 if (my $cb = $pkg->can ("unload")) {
2312 eval { 2520 eval {
2317 2525
2318 warn "... nuking $pkg"; 2526 warn "... nuking $pkg";
2319 Symbol::delete_package $pkg; 2527 Symbol::delete_package $pkg;
2320 } 2528 }
2321 2529
2322 warn "unload all perl modules loaded from $LIBDIR"; 2530 warn "unloading all perl modules loaded from $LIBDIR";
2323 while (my ($k, $v) = each %INC) { 2531 while (my ($k, $v) = each %INC) {
2324 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2532 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325 2533
2326 warn "removing <$k>"; 2534 warn "... unloading $k";
2327 delete $INC{$k}; 2535 delete $INC{$k};
2328 2536
2329 $k =~ s/\.pm$//; 2537 $k =~ s/\.pm$//;
2330 $k =~ s/\//::/g; 2538 $k =~ s/\//::/g;
2331 2539
2334 } 2542 }
2335 2543
2336 Symbol::delete_package $k; 2544 Symbol::delete_package $k;
2337 } 2545 }
2338 2546
2339 warn "get rid of safe::, as good as possible"; 2547 warn "getting rid of safe::, as good as possible";
2340 Symbol::delete_package "safe::$_" 2548 Symbol::delete_package "safe::$_"
2341 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2549 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2342 2550
2343 warn "unload cf.pm \"a bit\""; 2551 warn "unloading cf.pm \"a bit\"";
2344 delete $INC{"cf.pm"}; 2552 delete $INC{"cf.pm"};
2345 2553
2346 # don't, removes xs symbols, too, 2554 # don't, removes xs symbols, too,
2347 # and global variables created in xs 2555 # and global variables created in xs
2348 #Symbol::delete_package __PACKAGE__; 2556 #Symbol::delete_package __PACKAGE__;
2349 2557
2558 warn "unload completed, starting to reload now";
2559
2350 warn "reloading cf.pm"; 2560 warn "reloading cf.pm";
2351 require cf; 2561 require cf;
2352 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2562 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353 2563
2354 warn "load config and database again"; 2564 warn "loading config and database again";
2355 cf::cfg_load; 2565 cf::cfg_load;
2356 cf::db_load;
2357 2566
2358 warn "load extensions"; 2567 warn "loading extensions";
2359 cf::load_extensions; 2568 cf::load_extensions;
2360 2569
2361 warn "reattach attachments to objects/players"; 2570 warn "reattaching attachments to objects/players";
2362 _global_reattach; 2571 _global_reattach; # objects, sockets
2363 warn "reattach attachments to maps"; 2572 warn "reattaching attachments to maps";
2364 reattach $_ for values %MAP; 2573 reattach $_ for values %MAP;
2365 }; 2574 warn "reattaching attachments to players";
2575 reattach $_ for values %PLAYER;
2366 2576
2367 if ($@) { 2577 warn "loading reloadable resources";
2578 reload_resources;
2579
2580 warn "leaving sync_job";
2581
2582 1
2583 } or do {
2368 warn $@; 2584 warn $@;
2369 warn "error while reloading, exiting."; 2585 warn "error while reloading, exiting.";
2370 exit 1; 2586 exit 1;
2371 } 2587 };
2372 2588
2373 warn "reloaded"; 2589 warn "reloaded";
2374}; 2590};
2375 2591
2592our $RELOAD_WATCHER; # used only during reload
2593
2376register_command "reload" => sub { 2594register_command "reload" => sub {
2377 my ($who, $arg) = @_; 2595 my ($who, $arg) = @_;
2378 2596
2379 if ($who->flag (FLAG_WIZ)) { 2597 if ($who->flag (FLAG_WIZ)) {
2380 $who->message ("start of reload."); 2598 $who->message ("reloading server.");
2599
2600 # doing reload synchronously and two reloads happen back-to-back,
2601 # coro crashes during coro_state_free->destroy here.
2602
2603 $RELOAD_WATCHER ||= Event->timer (
2604 reentrant => 0,
2605 after => 0,
2606 data => WF_AUTOCANCEL,
2607 cb => sub {
2381 reload; 2608 reload;
2382 $who->message ("end of reload."); 2609 undef $RELOAD_WATCHER;
2610 },
2611 );
2383 } 2612 }
2384}; 2613};
2385 2614
2386unshift @INC, $LIBDIR; 2615unshift @INC, $LIBDIR;
2616
2617my $bug_warning = 0;
2387 2618
2388$TICK_WATCHER = Event->timer ( 2619$TICK_WATCHER = Event->timer (
2389 reentrant => 0, 2620 reentrant => 0,
2621 parked => 1,
2390 prio => 0, 2622 prio => 0,
2391 at => $NEXT_TICK || $TICK, 2623 at => $NEXT_TICK || $TICK,
2392 data => WF_AUTOCANCEL, 2624 data => WF_AUTOCANCEL,
2393 cb => sub { 2625 cb => sub {
2626 if ($Coro::current != $Coro::main) {
2627 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628 unless ++$bug_warning > 10;
2629 return;
2630 }
2631
2394 $NOW = Event::time; 2632 $NOW = Event::time;
2395 2633
2396 cf::server_tick; # one server iteration 2634 cf::server_tick; # one server iteration
2397 $RUNTIME += $TICK; 2635 $RUNTIME += $TICK;
2398 $NEXT_TICK += $TICK; 2636 $NEXT_TICK += $TICK;
2399 2637
2638 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639 $NEXT_RUNTIME_WRITE = $NOW + 10;
2640 Coro::async_pool {
2641 write_runtime
2642 or warn "ERROR: unable to write runtime file: $!";
2643 };
2644 }
2645
2400 $WAIT_FOR_TICK->broadcast; 2646 $WAIT_FOR_TICK->broadcast;
2401 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2647 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649# my $AFTER = Event::time;
2650# warn $AFTER - $NOW;#d#
2402 2651
2403 # if we are delayed by four ticks or more, skip them all 2652 # if we are delayed by four ticks or more, skip them all
2404 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2653 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2405 2654
2406 $TICK_WATCHER->at ($NEXT_TICK); 2655 $TICK_WATCHER->at ($NEXT_TICK);
2407 $TICK_WATCHER->start; 2656 $TICK_WATCHER->start;
2408 }, 2657 },
2409); 2658);
2410 2659
2660{
2661 BDB::max_poll_time $TICK * 0.1;
2662 $BDB_POLL_WATCHER = Event->io (
2663 reentrant => 0,
2664 fd => BDB::poll_fileno,
2665 poll => 'r',
2666 prio => 0,
2667 data => WF_AUTOCANCEL,
2668 cb => \&BDB::poll_cb,
2669 );
2670 BDB::min_parallel 8;
2671
2672 BDB::set_sync_prepare {
2673 my $status;
2674 my $current = $Coro::current;
2675 (
2676 sub {
2677 $status = $!;
2678 $current->ready; undef $current;
2679 },
2680 sub {
2681 Coro::schedule while defined $current;
2682 $! = $status;
2683 },
2684 )
2685 };
2686
2687 unless ($DB_ENV) {
2688 $DB_ENV = BDB::db_env_create;
2689
2690 cf::sync_job {
2691 eval {
2692 BDB::db_env_open
2693 $DB_ENV,
2694 $BDB_ENV_DIR,
2695 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697 0666;
2698
2699 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2700
2701 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2702 $DB_ENV->set_lk_detect;
2703 };
2704
2705 cf::cleanup "db_env_open(db): $@" if $@;
2706 };
2707 }
2708}
2709
2710{
2711 IO::AIO::min_parallel 8;
2712
2713 undef $Coro::AIO::WATCHER;
2411IO::AIO::max_poll_time $TICK * 0.2; 2714 IO::AIO::max_poll_time $TICK * 0.1;
2412
2413$AIO_POLL_WATCHER = Event->io ( 2715 $AIO_POLL_WATCHER = Event->io (
2414 fd => IO::AIO::poll_fileno, 2716 reentrant => 0,
2415 poll => 'r',
2416 prio => 5,
2417 data => WF_AUTOCANCEL,
2418 cb => \&IO::AIO::poll_cb,
2419);
2420
2421$WRITE_RUNTIME_WATCHER = Event->timer (
2422 data => WF_AUTOCANCEL, 2717 data => WF_AUTOCANCEL,
2423 after => 0, 2718 fd => IO::AIO::poll_fileno,
2424 interval => 10, 2719 poll => 'r',
2425 cb => sub { 2720 prio => 6,
2426 (Coro::unblock_sub { 2721 cb => \&IO::AIO::poll_cb,
2427 write_runtime 2722 );
2428 or warn "ERROR: unable to write runtime file: $!"; 2723}
2429 })->();
2430 },
2431);
2432 2724
2433END { cf::emergency_save } 2725END { cf::emergency_save }
2434 2726
24351 27271
2436 2728

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