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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.230 by root, Mon Apr 2 18:04:46 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 3.5 (); 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;
19 21
22use BDB ();
20use Data::Dumper; 23use Data::Dumper;
21use Digest::MD5; 24use Digest::MD5;
22use Fcntl; 25use Fcntl;
26use YAML::Syck ();
23use IO::AIO 2.32 (); 27use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
26 30
31# configure various modules to our taste
32#
33Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 36$Event::Eval = 1; # no idea why this is required, but it is
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 37
31# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 38# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32$YAML::Syck::ImplicitUnicode = 1; 39$YAML::Syck::ImplicitUnicode = 1;
33 40
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 41$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42
43sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 44
36our %COMMAND = (); 45our %COMMAND = ();
37our %COMMAND_TIME = (); 46our %COMMAND_TIME = ();
38 47
39our @EXTS = (); # list of extension package names 48our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 49our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 50our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 51our %EXT_MAP = (); # pluggable maps
43 52
53our $RELOAD; # number of reloads so far
44our @EVENT; 54our @EVENT;
45our $LIBDIR = datadir . "/ext"; 55our $LIBDIR = datadir . "/ext";
46 56
47our $TICK = MAX_TIME * 1e-6; 57our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 58our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 59our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 60our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 61our $NEXT_TICK;
52our $NOW; 62our $NOW;
63our $USE_FSYNC = 1; # use fsync to write maps - default off
64
65our $BDB_POLL_WATCHER;
66our $DB_ENV;
53 67
54our %CFG; 68our %CFG;
55 69
56our $UPTIME; $UPTIME ||= time; 70our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 71our $RUNTIME;
58 72
59our %PLAYER; # all users 73our %PLAYER; # all users
60our %MAP; # all maps 74our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 75our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 76our $RANDOM_MAPS = cf::localdir . "/random";
77our $BDB_ENV_DIR = cf::localdir . "/db";
63 78
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 79our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 80our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 81
67# used to convert map paths into valid unix filenames by replacing / by ∕ 82# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 95mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 96mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 97mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 98mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 99mkdir $RANDOM_MAPS;
100mkdir $BDB_ENV_DIR;
85 101
86our $EMERGENCY_POSITION; 102our $EMERGENCY_POSITION;
87 103
88sub cf::map::normalise; 104sub cf::map::normalise;
89 105
… …
192 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 208 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193 $d 209 $d
194 } || "[unable to dump $_[0]: '$@']"; 210 } || "[unable to dump $_[0]: '$@']";
195} 211}
196 212
197use JSON::Syck (); # TODO# replace by JSON::PC once working 213use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
198 214
199=item $ref = cf::from_json $json 215=item $ref = cf::from_json $json
200 216
201Converts a JSON string into the corresponding perl data structure. 217Converts a JSON string into the corresponding perl data structure.
202 218
203=cut
204
205sub from_json($) {
206 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207 JSON::Syck::Load $_[0]
208}
209
210=item $json = cf::to_json $ref 219=item $json = cf::to_json $ref
211 220
212Converts a perl data structure into its JSON representation. 221Converts a perl data structure into its JSON representation.
213
214=cut
215
216sub to_json($) {
217 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218 JSON::Syck::Dump $_[0]
219}
220 222
221=item cf::lock_wait $string 223=item cf::lock_wait $string
222 224
223Wait until the given lock is available. See cf::lock_acquire. 225Wait until the given lock is available. See cf::lock_acquire.
224 226
… …
263sub freeze_mainloop { 265sub freeze_mainloop {
264 return unless $TICK_WATCHER->is_active; 266 return unless $TICK_WATCHER->is_active;
265 267
266 my $guard = Coro::guard { 268 my $guard = Coro::guard {
267 $TICK_WATCHER->start; 269 $TICK_WATCHER->start;
268 $WRITE_RUNTIME_WATCHER->start;
269 }; 270 };
270 $WRITE_RUNTIME_WATCHER->stop;
271 $TICK_WATCHER->stop; 271 $TICK_WATCHER->stop;
272 $guard 272 $guard
273} 273}
274 274
275=item cf::async { BLOCK } 275=item cf::async { BLOCK }
… …
346 346
347 $coro 347 $coro
348} 348}
349 349
350sub write_runtime { 350sub write_runtime {
351 my $guard = cf::lock_acquire "write_runtime";
352
351 my $runtime = cf::localdir . "/runtime"; 353 my $runtime = cf::localdir . "/runtime";
352 354
353 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 355 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354 or return; 356 or return;
355 357
… …
358 # 60 allows for the watchdog to kill the server. 360 # 60 allows for the watchdog to kill the server.
359 361
360 (aio_write $fh, 0, (length $value), $value, 0) <= 0 362 (aio_write $fh, 0, (length $value), $value, 0) <= 0
361 and return; 363 and return;
362 364
365 # always fsync - this file is important
363 aio_fsync $fh 366 aio_fsync $fh
364 and return; 367 and return;
365 368
366 close $fh 369 close $fh
367 or return; 370 or return;
368 371
369 aio_rename "$runtime~", $runtime 372 aio_rename "$runtime~", $runtime
370 and return; 373 and return;
371 374
372 1 375 1
376}
377
378=item cf::datalog type => key => value, ...
379
380Log a datalog packet of the given type with the given key-value pairs.
381
382=cut
383
384sub datalog($@) {
385 my ($type, %kv) = @_;
386 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373} 387}
374 388
375=back 389=back
376 390
377=cut 391=cut
… …
752 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
753 767
754 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
756 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
758 close $fh; 772 close $fh;
759 773
760 if (@$objs) { 774 if (@$objs) {
761 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
763 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
764 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
765 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
766 close $fh; 780 close $fh;
767 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
768 } 782 }
769 } else { 783 } else {
770 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
… …
776 } 790 }
777 } else { 791 } else {
778 aio_unlink $filename; 792 aio_unlink $filename;
779 aio_unlink "$filename.pst"; 793 aio_unlink "$filename.pst";
780 } 794 }
781
782 #d##TODO# nuke non .map-files if exist
783 if ($filename =~ s/\.map$//) {
784 aio_unlink $filename;
785 aio_unlink "$filename.pst";
786 }
787 } 795 }
788} 796}
789 797
790sub object_freezer_as_string { 798sub object_freezer_as_string {
791 my ($rdata, $objs) = @_; 799 my ($rdata, $objs) = @_;
… …
797 805
798sub object_thawer_load { 806sub object_thawer_load {
799 my ($filename) = @_; 807 my ($filename) = @_;
800 808
801 my ($data, $av); 809 my ($data, $av);
802
803 #d#TODO remove .map if file does not exist
804 aio_stat $filename and $filename =~ s/\.map$//;
805 810
806 (aio_load $filename, $data) >= 0 811 (aio_load $filename, $data) >= 0
807 or return; 812 or return;
808 813
809 unless (aio_stat "$filename.pst") { 814 unless (aio_stat "$filename.pst") {
… …
1028=cut 1033=cut
1029 1034
1030sub quit_character { 1035sub quit_character {
1031 my ($pl) = @_; 1036 my ($pl) = @_;
1032 1037
1038 my $name = $pl->ob->name;
1039
1033 $pl->{deny_save} = 1; 1040 $pl->{deny_save} = 1;
1034 $pl->password ("*"); # this should lock out the player until we nuked the dir 1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1035 1042
1036 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1037 $pl->deactivate; 1044 $pl->deactivate;
… …
1041 my $path = playerdir $pl; 1048 my $path = playerdir $pl;
1042 my $temp = "$path~$cf::RUNTIME~deleting~"; 1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1043 aio_rename $path, $temp; 1050 aio_rename $path, $temp;
1044 delete $cf::PLAYER{$pl->ob->name}; 1051 delete $cf::PLAYER{$pl->ob->name};
1045 $pl->destroy; 1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1046 IO::AIO::aio_rmtree $temp; 1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1047} 1074}
1048 1075
1049=item cf::player::list_logins 1076=item cf::player::list_logins
1050 1077
1051Returns am arrayref of all valid playernames in the system, can take a 1078Returns am arrayref of all valid playernames in the system, can take a
… …
1079=cut 1106=cut
1080 1107
1081sub maps($) { 1108sub maps($) {
1082 my ($pl) = @_; 1109 my ($pl) = @_;
1083 1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1084 my $files = aio_readdir playerdir $pl 1113 my $files = aio_readdir playerdir $pl
1085 or return; 1114 or return;
1086 1115
1087 my @paths; 1116 my @paths;
1088 1117
1089 for (@$files) { 1118 for (@$files) {
1090 utf8::decode $_; 1119 utf8::decode $_;
1091 next if /\.(?:pl|pst)$/; 1120 next if /\.(?:pl|pst)$/;
1092 next unless /^$PATH_SEP/o; 1121 next unless /^$PATH_SEP/o;
1093 1122
1094 push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_; 1123 push @paths, cf::map::normalise "~$pl/$_";
1095 } 1124 }
1096 1125
1097 \@paths 1126 \@paths
1098} 1127}
1099 1128
… …
1294 my ($self) = @_; 1323 my ($self) = @_;
1295 1324
1296 utf8::encode (my $save = $self->save_path); 1325 utf8::encode (my $save = $self->save_path);
1297 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 1326 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 1327 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300 #d#TODO remove .map and also nuke
1301 $save =~ s/\.map// or return;#d#
1302 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304} 1328}
1305 1329
1306sub load_header_from($) { 1330sub load_header_from($) {
1307 my ($self, $path) = @_; 1331 my ($self, $path) = @_;
1308 1332
… …
1596 return if $self->players; 1620 return if $self->players;
1597 return if $self->isa ("ext::map_per_player");#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1598 1622
1599 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1600 1624
1625 $self->in_memory (cf::MAP_SWAPPED);
1626
1627 # need to save uniques path
1628 unless ($self->{deny_save}) {
1629 my $uniq = $self->uniq_path; utf8::encode $uniq;
1630
1631 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1632 if $uniq;
1633 }
1634
1601 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1602 1636
1603 $self->in_memory (cf::MAP_SWAPPED);
1604 $self->clear; 1637 $self->clear;
1605 1638
1606 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1607 1640
1608 $self->unlink_save; 1641 $self->unlink_save;
… …
1798 $map->load; 1831 $map->load;
1799 $map->load_diag; 1832 $map->load_diag;
1800 1833
1801 return unless $self->contr->active; 1834 return unless $self->contr->active;
1802 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1804} 1839}
1805 1840
1806cf::player->attach ( 1841cf::player->attach (
1807 on_logout => sub { 1842 on_logout => sub {
… …
1820 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1821 # should happen only on crashes 1856 # should happen only on crashes
1822 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1823 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1824 (async { 1859 (async {
1825 # we need this sleep as the login has a concurrent enter_exit running
1826 # and this sleep increases chances of the player not ending up in scorn
1827 $pl->ob->reply (undef, 1860 $pl->ob->reply (undef,
1828 "There was an internal problem at your last logout, " 1861 "There was an internal problem at your last logout, "
1829 . "the server will try to bring you to your intended destination in a second.", 1862 . "the server will try to bring you to your intended destination in a second.",
1830 cf::NDI_RED); 1863 cf::NDI_RED);
1864 # we need this sleep as the login has a concurrent enter_exit running
1865 # and this sleep increases chances of the player not ending up in scorn
1831 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1832 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1833 })->prio (2); 1868 })->prio (2);
1834 } 1869 }
1835 }, 1870 },
… …
1960 1995
1961sub cf::client::send_drawinfo { 1996sub cf::client::send_drawinfo {
1962 my ($self, $text, $flags) = @_; 1997 my ($self, $text, $flags) = @_;
1963 1998
1964 utf8::encode $text; 1999 utf8::encode $text;
1965 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2000 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966} 2001}
1967 2002
1968 2003
1969=item $success = $client->query ($flags, "text", \&cb) 2004=item $success = $client->query ($flags, "text", \&cb)
1970 2005
… …
2001 # get handled first 2036 # get handled first
2002 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
2003 or return; # be conservative, not sure how that can happen, but we saw a crash here 2038 or return; # be conservative, not sure how that can happen, but we saw a crash here
2004 2039
2005 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006 2042
2007 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
2008 2044
2009 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
2010 if (@$queue) { 2046 if (@$queue) {
… …
2068 2104
2069# here we export the classes and methods available to script code 2105# here we export the classes and methods available to script code
2070 2106
2071=pod 2107=pod
2072 2108
2073The following fucntions and emthods are available within a safe environment: 2109The following functions and methods are available within a safe environment:
2074 2110
2075 cf::object contr pay_amount pay_player map 2111 cf::object contr pay_amount pay_player map
2076 cf::object::player player 2112 cf::object::player player
2077 cf::player peaceful 2113 cf::player peaceful
2078 cf::map trigger 2114 cf::map trigger
… …
2171The parameter C<$family> should best start with the name of the extension 2207The parameter C<$family> should best start with the name of the extension
2172using it, it should be unique. 2208using it, it should be unique.
2173 2209
2174=over 4 2210=over 4
2175 2211
2176=item $hashref = cf::db_get $family
2177
2178Return a hashref for use by the extension C<$family>, which can be
2179modified. After modifications, you have to call C<cf::db_dirty> or
2180C<cf::db_sync>.
2181
2182=item $value = cf::db_get $family => $key 2212=item $value = cf::db_get $family => $key
2183 2213
2184Returns a single value from the database 2214Returns a single value from the database.
2185
2186=item cf::db_put $family => $hashref
2187
2188Stores the given family hashref into the database. Updates are delayed, if
2189you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190 2215
2191=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
2192 2217
2193Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores the given C<$value> in the family.
2194want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196=item cf::db_dirty
2197
2198Marks the database as dirty, to be updated at a later time.
2199
2200=item cf::db_sync
2201
2202Immediately write the database to disk I<if it is dirty>.
2203 2219
2204=cut 2220=cut
2205 2221
2206our $DB; 2222our $DB;
2207 2223
2208{ 2224sub db_init {
2225 unless ($DB) {
2226 $DB = BDB::db_create $DB_ENV;
2227
2228 cf::sync_job {
2229 eval {
2230 $DB->set_flags (BDB::CHKSUM);
2231
2232 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234 cf::cleanup "db_open(db): $!" if $!;
2235 };
2236 cf::cleanup "db_open(db): $@" if $@;
2237 };
2238
2209 my $path = cf::localdir . "/database.pst"; 2239 my $path = cf::localdir . "/database.pst";
2240 if (stat $path) {
2241 cf::sync_job {
2242 my $pst = Storable::retrieve $path;
2210 2243
2211 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
2212 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
2213 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
2214 2248
2215 my $pid; 2249 unlink $path;
2216
2217 sub db_save() {
2218 waitpid $pid, 0 if $pid;
2219 if (0 == ($pid = fork)) {
2220 $DB->{_meta}{version} = 1;
2221 Storable::nstore $DB, "$path~";
2222 rename "$path~", $path;
2223 cf::_exit 0 if defined $pid;
2224 } 2250 };
2251 }
2225 } 2252 }
2253}
2226 2254
2227 my $dirty;
2228
2229 sub db_sync() {
2230 db_save if $dirty;
2231 undef $dirty;
2232 }
2233
2234 my $idle = Event->idle (
2235 reentrant => 0,
2236 min => 10,
2237 max => 20,
2238 repeat => 0,
2239 data => WF_AUTOCANCEL,
2240 cb => \&db_sync,
2241 );
2242
2243 sub db_dirty() {
2244 $dirty = 1;
2245 $idle->start;
2246 }
2247
2248 sub db_get($;$) { 2255sub db_get($$) {
2249 @_ >= 2 2256 my $key = "$_[0]/$_[1]";
2250 ? $DB->{$_[0]}{$_[1]}
2251 : ($DB->{$_[0]} ||= { })
2252 }
2253 2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
2254 sub db_put($$;$) { 2266sub db_put($$$) {
2255 if (@_ >= 3) { 2267 BDB::dbreq_pri 4;
2256 $DB->{$_[0]}{$_[1]} = $_[2]; 2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269}
2270
2271#############################################################################
2272# the server's init and main functions
2273
2274sub load_facedata {
2275 my $path = sprintf "%s/facedata", cf::datadir;
2276
2277 warn "loading facedata from $path\n";
2278
2279 my $faces;
2280 0 < aio_load $path, $faces
2281 or die "$path: $!";
2282
2283 Coro::cede;
2284 $faces = Storable::thaw $faces;
2285 Coro::cede;
2286
2287 my $meta = delete $faces->{""};
2288 $meta->{version} == 1
2289 or cf::cleanup "$path: version mismatch, cannot proceed.";
2290
2291 while (my ($face, $info) = each %$faces) {
2292 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2294 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2295 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2296 Coro::cede;
2297 }
2298
2299 while (my ($face, $info) = each %$faces) {
2300 next unless $info->{smooth};
2301 my $idx = cf::face::find $face
2302 or next;
2303 if (my $smooth = cf::face::find $info->{smooth}) {
2304 cf::face::set_smooth $idx, $smooth;
2257 } else { 2305 } else {
2258 $DB->{$_[0]} = $_[1]; 2306 warn "smooth face '$info->{smooth}' not found for face '$face'";
2259 }
2260 db_dirty;
2261 }
2262
2263 cf::global->attach (
2264 prio => 10000,
2265 on_cleanup => sub {
2266 db_sync;
2267 }, 2307 }
2268 ); 2308 Coro::cede;
2269} 2309 }
2270 2310
2271############################################################################# 2311 1
2272# the server's main() 2312}
2313
2314sub reload_resources {
2315 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2316 or die "unable to load regions file\n";#d#
2317 load_facedata
2318 or die "unable to load facedata\n";#d#
2319}
2320
2321sub init {
2322 reload_resources;
2323}
2273 2324
2274sub cfg_load { 2325sub cfg_load {
2275 open my $fh, "<:utf8", cf::confdir . "/config" 2326 open my $fh, "<:utf8", cf::confdir . "/config"
2276 or return; 2327 or return;
2277 2328
… …
2300 Event::one_event; 2351 Event::one_event;
2301 })->prio (Coro::PRIO_MAX); 2352 })->prio (Coro::PRIO_MAX);
2302 }; 2353 };
2303 2354
2304 cfg_load; 2355 cfg_load;
2305 db_load; 2356 db_init;
2306 load_extensions; 2357 load_extensions;
2307 2358
2308 $TICK_WATCHER->start; 2359 $TICK_WATCHER->start;
2309 Event::loop; 2360 Event::loop;
2310} 2361}
… …
2349 my $map = $cf::MAP{$path} or next; 2400 my $map = $cf::MAP{$path} or next;
2350 $map->valid or next; 2401 $map->valid or next;
2351 $map->save; 2402 $map->save;
2352 } 2403 }
2353 warn "end emergency map save\n"; 2404 warn "end emergency map save\n";
2405
2406 warn "begin emergency database checkpoint\n";
2407 BDB::db_env_txn_checkpoint $DB_ENV;
2408 warn "end emergency database checkpoint\n";
2354 }; 2409 };
2355 2410
2356 warn "leave emergency perl save\n"; 2411 warn "leave emergency perl save\n";
2412}
2413
2414sub post_cleanup {
2415 my ($make_core) = @_;
2416
2417 warn Carp::longmess "post_cleanup backtrace"
2418 if $make_core;
2357} 2419}
2358 2420
2359sub reload() { 2421sub reload() {
2360 # can/must only be called in main 2422 # can/must only be called in main
2361 if ($Coro::current != $Coro::main) { 2423 if ($Coro::current != $Coro::main) {
… …
2363 return; 2425 return;
2364 } 2426 }
2365 2427
2366 warn "reloading..."; 2428 warn "reloading...";
2367 2429
2368 warn "cancelling server ticker"; 2430 warn "entering sync_job";
2369 $TICK_WATCHER->cancel;
2370 2431
2432 cf::sync_job {
2433 cf::write_runtime; # external watchdog should not bark
2371 cf::emergency_save; 2434 cf::emergency_save;
2435 cf::write_runtime; # external watchdog should not bark
2372 2436
2373 eval { 2437 warn "syncing database to disk";
2438 BDB::db_env_txn_checkpoint $DB_ENV;
2439
2374 # if anything goes wrong in here, we should simply crash as we already saved 2440 # if anything goes wrong in here, we should simply crash as we already saved
2375
2376 warn "syncing database to disk";
2377 cf::db_sync;
2378 2441
2379 warn "cancelling all WF_AUTOCANCEL watchers"; 2442 warn "cancelling all WF_AUTOCANCEL watchers";
2380 for (Event::all_watchers) { 2443 for (Event::all_watchers) {
2381 $_->cancel if $_->data & WF_AUTOCANCEL; 2444 $_->cancel if $_->data & WF_AUTOCANCEL;
2382 } 2445 }
2383 2446
2384 warn "flushing outstanding aio requests"; 2447 warn "flushing outstanding aio requests";
2385 for (;;) { 2448 for (;;) {
2449 BDB::flush;
2386 IO::AIO::flush; 2450 IO::AIO::flush;
2387 Coro::cede; 2451 Coro::cede;
2388 last unless IO::AIO::nreqs; 2452 last unless IO::AIO::nreqs || BDB::nreqs;
2389 warn "iterate..."; 2453 warn "iterate...";
2390 } 2454 }
2455
2456 ++$RELOAD;
2391 2457
2392 warn "cancelling all extension coros"; 2458 warn "cancelling all extension coros";
2393 $_->cancel for values %EXT_CORO; 2459 $_->cancel for values %EXT_CORO;
2394 %EXT_CORO = (); 2460 %EXT_CORO = ();
2395 2461
… …
2448 require cf; 2514 require cf;
2449 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2515 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450 2516
2451 warn "loading config and database again"; 2517 warn "loading config and database again";
2452 cf::cfg_load; 2518 cf::cfg_load;
2453 cf::db_load;
2454 2519
2455 warn "loading extensions"; 2520 warn "loading extensions";
2456 cf::load_extensions; 2521 cf::load_extensions;
2457 2522
2458 warn "reattaching attachments to objects/players"; 2523 warn "reattaching attachments to objects/players";
2459 _global_reattach; 2524 _global_reattach; # objects, sockets
2460 warn "reattaching attachments to maps"; 2525 warn "reattaching attachments to maps";
2461 reattach $_ for values %MAP; 2526 reattach $_ for values %MAP;
2527 warn "reattaching attachments to players";
2528 reattach $_ for values %PLAYER;
2462 2529
2463 warn "restarting server ticker"; 2530 warn "loading reloadable resources";
2531 reload_resources;
2464 2532
2465 $TICK_WATCHER->start; 2533 warn "leaving sync_job";
2466 };
2467 2534
2468 if ($@) { 2535 1
2536 } or do {
2469 warn $@; 2537 warn $@;
2470 warn "error while reloading, exiting."; 2538 warn "error while reloading, exiting.";
2471 exit 1; 2539 exit 1;
2472 } 2540 };
2473 2541
2474 warn "reloaded"; 2542 warn "reloaded";
2475}; 2543};
2476 2544
2477our $RELOAD_WATCHER; # used only during reload 2545our $RELOAD_WATCHER; # used only during reload
… …
2518 2586
2519 cf::server_tick; # one server iteration 2587 cf::server_tick; # one server iteration
2520 $RUNTIME += $TICK; 2588 $RUNTIME += $TICK;
2521 $NEXT_TICK += $TICK; 2589 $NEXT_TICK += $TICK;
2522 2590
2591 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2592 $NEXT_RUNTIME_WRITE = $NOW + 10;
2593 Coro::async_pool {
2594 write_runtime
2595 or warn "ERROR: unable to write runtime file: $!";
2596 };
2597 }
2598
2523 $WAIT_FOR_TICK->broadcast; 2599 $WAIT_FOR_TICK->broadcast;
2524 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2600 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2525 2601
2526 Event::sweep;
2527 Coro::cede_notself;
2528
2529# my $AFTER = Event::time; 2602# my $AFTER = Event::time;
2530# warn $AFTER - $NOW;#d# 2603# warn $AFTER - $NOW;#d#
2531 2604
2532 # if we are delayed by four ticks or more, skip them all 2605 # if we are delayed by four ticks or more, skip them all
2533 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2606 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2535 $TICK_WATCHER->at ($NEXT_TICK); 2608 $TICK_WATCHER->at ($NEXT_TICK);
2536 $TICK_WATCHER->start; 2609 $TICK_WATCHER->start;
2537 }, 2610 },
2538); 2611);
2539 2612
2613{
2614 BDB::max_poll_time $TICK * 0.1;
2615 $BDB_POLL_WATCHER = Event->io (
2616 reentrant => 0,
2617 fd => BDB::poll_fileno,
2618 poll => 'r',
2619 prio => 0,
2620 data => WF_AUTOCANCEL,
2621 cb => \&BDB::poll_cb,
2622 );
2623 BDB::min_parallel 8;
2624
2625 BDB::set_sync_prepare {
2626 my $status;
2627 my $current = $Coro::current;
2628 (
2629 sub {
2630 $status = $!;
2631 $current->ready; undef $current;
2632 },
2633 sub {
2634 Coro::schedule while defined $current;
2635 $! = $status;
2636 },
2637 )
2638 };
2639
2640 unless ($DB_ENV) {
2641 $DB_ENV = BDB::db_env_create;
2642
2643 cf::sync_job {
2644 eval {
2645 BDB::db_env_open
2646 $DB_ENV,
2647 $BDB_ENV_DIR,
2648 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2649 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2650 0666;
2651
2652 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2653
2654 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2655 $DB_ENV->set_lk_detect;
2656 };
2657
2658 cf::cleanup "db_env_open(db): $@" if $@;
2659 };
2660 }
2661}
2662
2663{
2664 IO::AIO::min_parallel 8;
2665
2666 undef $Coro::AIO::WATCHER;
2540IO::AIO::max_poll_time $TICK * 0.1; 2667 IO::AIO::max_poll_time $TICK * 0.1;
2541
2542undef $Coro::AIO::WATCHER;
2543$AIO_POLL_WATCHER = Event->io ( 2668 $AIO_POLL_WATCHER = Event->io (
2544 reentrant => 0, 2669 reentrant => 0,
2670 data => WF_AUTOCANCEL,
2545 fd => IO::AIO::poll_fileno, 2671 fd => IO::AIO::poll_fileno,
2546 poll => 'r', 2672 poll => 'r',
2547 prio => 6, 2673 prio => 6,
2548 data => WF_AUTOCANCEL,
2549 cb => \&IO::AIO::poll_cb, 2674 cb => \&IO::AIO::poll_cb,
2550); 2675 );
2551 2676}
2552$WRITE_RUNTIME_WATCHER = Event->timer (
2553 reentrant => 0,
2554 data => WF_AUTOCANCEL,
2555 after => 1,
2556 interval => 10,
2557 prio => 6, # keep it lowest so it acts like a watchdog
2558 cb => Coro::unblock_sub {
2559 write_runtime
2560 or warn "ERROR: unable to write runtime file: $!";
2561 },
2562);
2563 2677
2564END { cf::emergency_save } 2678END { cf::emergency_save }
2565 2679
25661 26801
2567 2681

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