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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC

… …
15use Coro::Timer; 15use Coro::Timer;
16use Coro::Signal; 16use Coro::Signal;
17use Coro::Semaphore; 17use Coro::Semaphore;
18use Coro::AIO; 18use Coro::AIO;
19 19
20use BDB ();
20use Data::Dumper; 21use Data::Dumper;
21use Digest::MD5; 22use Digest::MD5;
22use Fcntl; 23use Fcntl;
23use IO::AIO 2.32 (); 24use IO::AIO 2.32 ();
24use YAML::Syck (); 25use YAML::Syck ();
25use Time::HiRes; 26use Time::HiRes;
27use Compress::LZF;
28
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
26 30
27use Event; $Event::Eval = 1; # no idea why this is required, but it is 31use Event; $Event::Eval = 1; # no idea why this is required, but it is
28 32
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 34
… …
45our $LIBDIR = datadir . "/ext"; 49our $LIBDIR = datadir . "/ext";
46 50
47our $TICK = MAX_TIME * 1e-6; 51our $TICK = MAX_TIME * 1e-6;
48our $TICK_WATCHER; 52our $TICK_WATCHER;
49our $AIO_POLL_WATCHER; 53our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 55our $NEXT_TICK;
52our $NOW; 56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off
58
59our $BDB_POLL_WATCHER;
60our $DB_ENV;
53 61
54our %CFG; 62our %CFG;
55 63
56our $UPTIME; $UPTIME ||= time; 64our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 65our $RUNTIME;
58 66
59our %PLAYER; # all users 67our %PLAYER; # all users
60our %MAP; # all maps 68our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 69our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random"; 70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
63 72
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal; 73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal; 74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 75
67# used to convert map paths into valid unix filenames by replacing / by ∕ 76# used to convert map paths into valid unix filenames by replacing / by ∕
… …
80mkdir cf::localdir; 89mkdir cf::localdir;
81mkdir cf::localdir . "/" . cf::playerdir; 90mkdir cf::localdir . "/" . cf::playerdir;
82mkdir cf::localdir . "/" . cf::tmpdir; 91mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir; 92mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS; 93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
85 95
86our $EMERGENCY_POSITION; 96our $EMERGENCY_POSITION;
97
98sub cf::map::normalise;
87 99
88############################################################################# 100#############################################################################
89 101
90=head2 GLOBAL VARIABLES 102=head2 GLOBAL VARIABLES
91 103
… …
261sub freeze_mainloop { 273sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 274 return unless $TICK_WATCHER->is_active;
263 275
264 my $guard = Coro::guard { 276 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 277 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 278 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 279 $TICK_WATCHER->stop;
270 $guard 280 $guard
271} 281}
272 282
273=item cf::async { BLOCK } 283=item cf::async { BLOCK }
… …
344 354
345 $coro 355 $coro
346} 356}
347 357
348sub write_runtime { 358sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime";
360
349 my $runtime = cf::localdir . "/runtime"; 361 my $runtime = cf::localdir . "/runtime";
350 362
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 364 or return;
353 365
… …
356 # 60 allows for the watchdog to kill the server. 368 # 60 allows for the watchdog to kill the server.
357 369
358 (aio_write $fh, 0, (length $value), $value, 0) <= 0 370 (aio_write $fh, 0, (length $value), $value, 0) <= 0
359 and return; 371 and return;
360 372
373 # always fsync - this file is important
361 aio_fsync $fh 374 aio_fsync $fh
362 and return; 375 and return;
363 376
364 close $fh 377 close $fh
365 or return; 378 or return;
… …
750 $filename, length $$rdata, scalar @$objs; 763 $filename, length $$rdata, scalar @$objs;
751 764
752 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753 chmod SAVE_MODE, $fh; 766 chmod SAVE_MODE, $fh;
754 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 767 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755 aio_fsync $fh; 768 aio_fsync $fh if $cf::USE_FSYNC;
756 close $fh; 769 close $fh;
757 770
758 if (@$objs) { 771 if (@$objs) {
759 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760 chmod SAVE_MODE, $fh; 773 chmod SAVE_MODE, $fh;
761 my $data = Storable::nfreeze { version => 1, objs => $objs }; 774 my $data = Storable::nfreeze { version => 1, objs => $objs };
762 aio_write $fh, 0, (length $data), $data, 0; 775 aio_write $fh, 0, (length $data), $data, 0;
763 aio_fsync $fh; 776 aio_fsync $fh if $cf::USE_FSYNC;
764 close $fh; 777 close $fh;
765 aio_rename "$filename.pst~", "$filename.pst"; 778 aio_rename "$filename.pst~", "$filename.pst";
766 } 779 }
767 } else { 780 } else {
768 aio_unlink "$filename.pst"; 781 aio_unlink "$filename.pst";
… …
1017=cut 1030=cut
1018 1031
1019sub quit_character { 1032sub quit_character {
1020 my ($pl) = @_; 1033 my ($pl) = @_;
1021 1034
1035 my $name = $pl->ob->name;
1036
1022 $pl->{deny_save} = 1; 1037 $pl->{deny_save} = 1;
1023 $pl->password ("*"); # this should lock out the player until we nuked the dir 1038 $pl->password ("*"); # this should lock out the player until we nuked the dir
1024 1039
1025 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1040 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026 $pl->deactivate; 1041 $pl->deactivate;
… …
1030 my $path = playerdir $pl; 1045 my $path = playerdir $pl;
1031 my $temp = "$path~$cf::RUNTIME~deleting~"; 1046 my $temp = "$path~$cf::RUNTIME~deleting~";
1032 aio_rename $path, $temp; 1047 aio_rename $path, $temp;
1033 delete $cf::PLAYER{$pl->ob->name}; 1048 delete $cf::PLAYER{$pl->ob->name};
1034 $pl->destroy; 1049 $pl->destroy;
1050
1051 my $prefix = qr<^~\Q$name\E/>;
1052
1053 # nuke player maps
1054 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1055
1035 IO::AIO::aio_rmtree $temp; 1056 IO::AIO::aio_rmtree $temp;
1057}
1058
1059=item $pl->kick
1060
1061Kicks a player out of the game. This destroys the connection.
1062
1063=cut
1064
1065sub kick {
1066 my ($pl, $kicker) = @_;
1067
1068 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1069 $pl->killer ("kicked");
1070 $pl->ns->destroy;
1036} 1071}
1037 1072
1038=item cf::player::list_logins 1073=item cf::player::list_logins
1039 1074
1040Returns am arrayref of all valid playernames in the system, can take a 1075Returns am arrayref of all valid playernames in the system, can take a
… …
1068=cut 1103=cut
1069 1104
1070sub maps($) { 1105sub maps($) {
1071 my ($pl) = @_; 1106 my ($pl) = @_;
1072 1107
1108 $pl = ref $pl ? $pl->ob->name : $pl;
1109
1073 my $files = aio_readdir playerdir $pl 1110 my $files = aio_readdir playerdir $pl
1074 or return; 1111 or return;
1075 1112
1076 my @paths; 1113 my @paths;
1077 1114
1078 for (@$files) { 1115 for (@$files) {
1079 utf8::decode $_; 1116 utf8::decode $_;
1080 next if /\.(?:pl|pst)$/; 1117 next if /\.(?:pl|pst)$/;
1081 next unless /^$PATH_SEP/o; 1118 next unless /^$PATH_SEP/o;
1082 1119
1083 s/\.map$//; 1120 push @paths, cf::map::normalise "~$pl/$_";
1084 push @paths, "~" . $pl->ob->name . "/" . $_;
1085 } 1121 }
1086 1122
1087 \@paths 1123 \@paths
1088} 1124}
1089 1125
… …
1178sub normalise { 1214sub normalise {
1179 my ($path, $base) = @_; 1215 my ($path, $base) = @_;
1180 1216
1181 $path = "$path"; # make sure its a string 1217 $path = "$path"; # make sure its a string
1182 1218
1219 $path =~ s/\.map$//;
1220
1183 # map plan: 1221 # map plan:
1184 # 1222 #
1185 # /! non-realised random map exit (special hack!) 1223 # /! non-realised random map exit (special hack!)
1186 # {... are special paths that are not being touched 1224 # {... are special paths that are not being touched
1187 # ?xxx/... are special absolute paths 1225 # ?xxx/... are special absolute paths
… …
1248 1286
1249# the original (read-only) location 1287# the original (read-only) location
1250sub load_path { 1288sub load_path {
1251 my ($self) = @_; 1289 my ($self) = @_;
1252 1290
1253 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1291 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1254} 1292}
1255 1293
1256# the temporary/swap location 1294# the temporary/swap location
1257sub save_path { 1295sub save_path {
1258 my ($self) = @_; 1296 my ($self) = @_;
1259 1297
1260 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1299 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1262} 1300}
1263 1301
1264# the unique path, undef == no special unique path 1302# the unique path, undef == no special unique path
1265sub uniq_path { 1303sub uniq_path {
1266 my ($self) = @_; 1304 my ($self) = @_;
… …
1288 1326
1289sub load_header_from($) { 1327sub load_header_from($) {
1290 my ($self, $path) = @_; 1328 my ($self, $path) = @_;
1291 1329
1292 utf8::encode $path; 1330 utf8::encode $path;
1293 aio_open $path, O_RDONLY, 0 1331 #aio_open $path, O_RDONLY, 0
1294 or return; 1332 # or return;
1295 1333
1296 $self->_load_header ($path) 1334 $self->_load_header ($path)
1297 or return; 1335 or return;
1298 1336
1299 $self->{load_path} = $path; 1337 $self->{load_path} = $path;
… …
1579 return if $self->players; 1617 return if $self->players;
1580 return if $self->isa ("ext::map_per_player");#d# 1618 return if $self->isa ("ext::map_per_player");#d#
1581 1619
1582 warn "resetting map ", $self->path;#d# 1620 warn "resetting map ", $self->path;#d#
1583 1621
1622 $self->in_memory (cf::MAP_SWAPPED);
1623
1624 # need to save uniques path
1625 unless ($self->{deny_save}) {
1626 my $uniq = $self->uniq_path; utf8::encode $uniq;
1627
1628 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1629 if $uniq;
1630 }
1631
1584 delete $cf::MAP{$self->path}; 1632 delete $cf::MAP{$self->path};
1585 1633
1586 $self->in_memory (cf::MAP_SWAPPED);
1587 $self->clear; 1634 $self->clear;
1588 1635
1589 $_->clear_links_to ($self) for values %cf::MAP; 1636 $_->clear_links_to ($self) for values %cf::MAP;
1590 1637
1591 $self->unlink_save; 1638 $self->unlink_save;
… …
1628 for (@$files) { 1675 for (@$files) {
1629 utf8::decode $_; 1676 utf8::decode $_;
1630 next if /\.pst$/; 1677 next if /\.pst$/;
1631 next unless /^$PATH_SEP/o; 1678 next unless /^$PATH_SEP/o;
1632 1679
1633 s/\.map$//; 1680 push @paths, cf::map::normalise $_;
1634 push @paths, $_;
1635 } 1681 }
1636 1682
1637 \@paths 1683 \@paths
1638} 1684}
1639 1685
… …
1782 $map->load; 1828 $map->load;
1783 $map->load_diag; 1829 $map->load_diag;
1784 1830
1785 return unless $self->contr->active; 1831 return unless $self->contr->active;
1786 $self->activate_recursive; 1832 $self->activate_recursive;
1833
1834 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787 $self->enter_map ($map, $x, $y); 1835 $self->enter_map ($map, $x, $y);
1788} 1836}
1789 1837
1790cf::player->attach ( 1838cf::player->attach (
1791 on_logout => sub { 1839 on_logout => sub {
… …
1804 # try to abort aborted map switching on player login :) 1852 # try to abort aborted map switching on player login :)
1805 # should happen only on crashes 1853 # should happen only on crashes
1806 if ($pl->ob->{_link_pos}) { 1854 if ($pl->ob->{_link_pos}) {
1807 $pl->ob->enter_link; 1855 $pl->ob->enter_link;
1808 (async { 1856 (async {
1809 # we need this sleep as the login has a concurrent enter_exit running
1810 # and this sleep increases chances of the player not ending up in scorn
1811 $pl->ob->reply (undef, 1857 $pl->ob->reply (undef,
1812 "There was an internal problem at your last logout, " 1858 "There was an internal problem at your last logout, "
1813 . "the server will try to bring you to your intended destination in a second.", 1859 . "the server will try to bring you to your intended destination in a second.",
1814 cf::NDI_RED); 1860 cf::NDI_RED);
1861 # we need this sleep as the login has a concurrent enter_exit running
1862 # and this sleep increases chances of the player not ending up in scorn
1815 Coro::Timer::sleep 1; 1863 Coro::Timer::sleep 1;
1816 $pl->ob->leave_link; 1864 $pl->ob->leave_link;
1817 })->prio (2); 1865 })->prio (2);
1818 } 1866 }
1819 }, 1867 },
… …
1985 # get handled first 2033 # get handled first
1986 my $queue = delete $ns->{query_queue} 2034 my $queue = delete $ns->{query_queue}
1987 or return; # be conservative, not sure how that can happen, but we saw a crash here 2035 or return; # be conservative, not sure how that can happen, but we saw a crash here
1988 2036
1989 (shift @$queue)->[1]->($msg); 2037 (shift @$queue)->[1]->($msg);
2038 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990 2039
1991 push @{ $ns->{query_queue} }, @$queue; 2040 push @{ $ns->{query_queue} }, @$queue;
1992 2041
1993 if (@{ $ns->{query_queue} } == @$queue) { 2042 if (@{ $ns->{query_queue} } == @$queue) {
1994 if (@$queue) { 2043 if (@$queue) {
… …
2155The parameter C<$family> should best start with the name of the extension 2204The parameter C<$family> should best start with the name of the extension
2156using it, it should be unique. 2205using it, it should be unique.
2157 2206
2158=over 4 2207=over 4
2159 2208
2160=item $hashref = cf::db_get $family
2161
2162Return a hashref for use by the extension C<$family>, which can be
2163modified. After modifications, you have to call C<cf::db_dirty> or
2164C<cf::db_sync>.
2165
2166=item $value = cf::db_get $family => $key 2209=item $value = cf::db_get $family => $key
2167 2210
2168Returns a single value from the database 2211Returns a single value from the database.
2169
2170=item cf::db_put $family => $hashref
2171
2172Stores the given family hashref into the database. Updates are delayed, if
2173you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174 2212
2175=item cf::db_put $family => $key => $value 2213=item cf::db_put $family => $key => $value
2176 2214
2177Stores the given C<$value> in the family hash. Updates are delayed, if you 2215Stores the given C<$value> in the family.
2178want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180=item cf::db_dirty
2181
2182Marks the database as dirty, to be updated at a later time.
2183
2184=item cf::db_sync
2185
2186Immediately write the database to disk I<if it is dirty>.
2187 2216
2188=cut 2217=cut
2189 2218
2190our $DB; 2219our $DB;
2191 2220
2192{ 2221sub db_init {
2222 unless ($DB) {
2223 $DB = BDB::db_create $DB_ENV;
2224
2225 cf::sync_job {
2226 eval {
2227 $DB->set_flags (BDB::CHKSUM);
2228
2229 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2230 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231 cf::cleanup "db_open(db): $!" if $!;
2232 };
2233 cf::cleanup "db_open(db): $@" if $@;
2234 };
2235
2193 my $path = cf::localdir . "/database.pst"; 2236 my $path = cf::localdir . "/database.pst";
2237 if (stat $path) {
2238 cf::sync_job {
2239 my $pst = Storable::retrieve $path;
2194 2240
2195 sub db_load() { 2241 cf::db_put (board => data => $pst->{board});
2196 $DB = stat $path ? Storable::retrieve $path : { }; 2242 cf::db_put (guildrules => data => $pst->{guildrules});
2197 } 2243 cf::db_put (rent => balance => $pst->{rent}{balance});
2244 BDB::db_env_txn_checkpoint $DB_ENV;
2198 2245
2199 my $pid; 2246 unlink $path;
2200
2201 sub db_save() {
2202 waitpid $pid, 0 if $pid;
2203 if (0 == ($pid = fork)) {
2204 $DB->{_meta}{version} = 1;
2205 Storable::nstore $DB, "$path~";
2206 rename "$path~", $path;
2207 cf::_exit 0 if defined $pid;
2208 } 2247 };
2209 }
2210
2211 my $dirty;
2212
2213 sub db_sync() {
2214 db_save if $dirty;
2215 undef $dirty;
2216 }
2217
2218 my $idle = Event->idle (
2219 reentrant => 0,
2220 min => 10,
2221 max => 20,
2222 repeat => 0,
2223 data => WF_AUTOCANCEL,
2224 cb => \&db_sync,
2225 );
2226
2227 sub db_dirty() {
2228 $dirty = 1;
2229 $idle->start;
2230 }
2231
2232 sub db_get($;$) {
2233 @_ >= 2
2234 ? $DB->{$_[0]}{$_[1]}
2235 : ($DB->{$_[0]} ||= { })
2236 }
2237
2238 sub db_put($$;$) {
2239 if (@_ >= 3) {
2240 $DB->{$_[0]}{$_[1]} = $_[2];
2241 } else {
2242 $DB->{$_[0]} = $_[1];
2243 }
2244 db_dirty;
2245 }
2246
2247 cf::global->attach (
2248 prio => 10000,
2249 on_cleanup => sub {
2250 db_sync;
2251 }, 2248 }
2252 ); 2249 }
2250}
2251
2252sub db_get($$) {
2253 my $key = "$_[0]/$_[1]";
2254
2255 cf::sync_job {
2256 BDB::db_get $DB, undef, $key, my $data;
2257
2258 $! ? ()
2259 : Compress::LZF::sthaw $data
2260 }
2261}
2262
2263sub db_put($$$) {
2264 BDB::dbreq_pri 4;
2265 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2253} 2266}
2254 2267
2255############################################################################# 2268#############################################################################
2256# the server's main() 2269# the server's init and main functions
2270
2271sub init_resources {
2272 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2273 or die "unable to load regions file\n";#d#
2274}
2257 2275
2258sub cfg_load { 2276sub cfg_load {
2259 open my $fh, "<:utf8", cf::confdir . "/config" 2277 open my $fh, "<:utf8", cf::confdir . "/config"
2260 or return; 2278 or return;
2261 2279
… …
2272 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2290 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2273 and die "WARNING: m(un)lockall failed: $!\n"; 2291 and die "WARNING: m(un)lockall failed: $!\n";
2274 }; 2292 };
2275 warn $@ if $@; 2293 warn $@ if $@;
2276 } 2294 }
2295}
2296
2297sub init {
2298 init_resources;
2277} 2299}
2278 2300
2279sub main { 2301sub main {
2280 # we must not ever block the main coroutine 2302 # we must not ever block the main coroutine
2281 local $Coro::idle = sub { 2303 local $Coro::idle = sub {
… …
2284 Event::one_event; 2306 Event::one_event;
2285 })->prio (Coro::PRIO_MAX); 2307 })->prio (Coro::PRIO_MAX);
2286 }; 2308 };
2287 2309
2288 cfg_load; 2310 cfg_load;
2289 db_load; 2311 db_init;
2290 load_extensions; 2312 load_extensions;
2291 2313
2292 $TICK_WATCHER->start; 2314 $TICK_WATCHER->start;
2293 Event::loop; 2315 Event::loop;
2294} 2316}
… …
2333 my $map = $cf::MAP{$path} or next; 2355 my $map = $cf::MAP{$path} or next;
2334 $map->valid or next; 2356 $map->valid or next;
2335 $map->save; 2357 $map->save;
2336 } 2358 }
2337 warn "end emergency map save\n"; 2359 warn "end emergency map save\n";
2360
2361 warn "begin emergency database checkpoint\n";
2362 BDB::db_env_txn_checkpoint $DB_ENV;
2363 warn "end emergency database checkpoint\n";
2338 }; 2364 };
2339 2365
2340 warn "leave emergency perl save\n"; 2366 warn "leave emergency perl save\n";
2367}
2368
2369sub post_cleanup {
2370 my ($make_core) = @_;
2371
2372 warn Carp::longmess "post_cleanup backtrace"
2373 if $make_core;
2341} 2374}
2342 2375
2343sub reload() { 2376sub reload() {
2344 # can/must only be called in main 2377 # can/must only be called in main
2345 if ($Coro::current != $Coro::main) { 2378 if ($Coro::current != $Coro::main) {
… …
2347 return; 2380 return;
2348 } 2381 }
2349 2382
2350 warn "reloading..."; 2383 warn "reloading...";
2351 2384
2352 warn "cancelling server ticker"; 2385 warn "entering sync_job";
2353 $TICK_WATCHER->cancel;
2354 2386
2387 cf::sync_job {
2388 cf::write_runtime; # external watchdog should not bark
2355 cf::emergency_save; 2389 cf::emergency_save;
2390 cf::write_runtime; # external watchdog should not bark
2356 2391
2357 eval { 2392 warn "syncing database to disk";
2393 BDB::db_env_txn_checkpoint $DB_ENV;
2394
2358 # if anything goes wrong in here, we should simply crash as we already saved 2395 # if anything goes wrong in here, we should simply crash as we already saved
2359
2360 warn "syncing database to disk";
2361 cf::db_sync;
2362 2396
2363 warn "cancelling all WF_AUTOCANCEL watchers"; 2397 warn "cancelling all WF_AUTOCANCEL watchers";
2364 for (Event::all_watchers) { 2398 for (Event::all_watchers) {
2365 $_->cancel if $_->data & WF_AUTOCANCEL; 2399 $_->cancel if $_->data & WF_AUTOCANCEL;
2366 } 2400 }
2367 2401
2368 warn "flushing outstanding aio requests"; 2402 warn "flushing outstanding aio requests";
2369 for (;;) { 2403 for (;;) {
2404 BDB::flush;
2370 IO::AIO::flush; 2405 IO::AIO::flush;
2371 Coro::cede; 2406 Coro::cede;
2372 last unless IO::AIO::nreqs; 2407 last unless IO::AIO::nreqs || BDB::nreqs;
2373 warn "iterate..."; 2408 warn "iterate...";
2374 } 2409 }
2375 2410
2376 warn "cancelling all extension coros"; 2411 warn "cancelling all extension coros";
2377 $_->cancel for values %EXT_CORO; 2412 $_->cancel for values %EXT_CORO;
… …
2432 require cf; 2467 require cf;
2433 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2468 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434 2469
2435 warn "loading config and database again"; 2470 warn "loading config and database again";
2436 cf::cfg_load; 2471 cf::cfg_load;
2437 cf::db_load;
2438 2472
2439 warn "loading extensions"; 2473 warn "loading extensions";
2440 cf::load_extensions; 2474 cf::load_extensions;
2441 2475
2442 warn "reattaching attachments to objects/players"; 2476 warn "reattaching attachments to objects/players";
2443 _global_reattach; 2477 _global_reattach;
2444 warn "reattaching attachments to maps"; 2478 warn "reattaching attachments to maps";
2445 reattach $_ for values %MAP; 2479 reattach $_ for values %MAP;
2446 2480
2447 warn "restarting server ticker"; 2481 warn "loading reloadable resources";
2482 init_resources;
2448 2483
2449 $TICK_WATCHER->start; 2484 warn "leaving sync_job";
2450 };
2451 2485
2452 if ($@) { 2486 1
2487 } or do {
2453 warn $@; 2488 warn $@;
2454 warn "error while reloading, exiting."; 2489 warn "error while reloading, exiting.";
2455 exit 1; 2490 exit 1;
2456 } 2491 };
2457 2492
2458 warn "reloaded"; 2493 warn "reloaded";
2459}; 2494};
2460 2495
2461our $RELOAD_WATCHER; # used only during reload 2496our $RELOAD_WATCHER; # used only during reload
… …
2502 2537
2503 cf::server_tick; # one server iteration 2538 cf::server_tick; # one server iteration
2504 $RUNTIME += $TICK; 2539 $RUNTIME += $TICK;
2505 $NEXT_TICK += $TICK; 2540 $NEXT_TICK += $TICK;
2506 2541
2542 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2543 $NEXT_RUNTIME_WRITE = $NOW + 10;
2544 Coro::async_pool {
2545 write_runtime
2546 or warn "ERROR: unable to write runtime file: $!";
2547 };
2548 }
2549
2507 $WAIT_FOR_TICK->broadcast; 2550 $WAIT_FOR_TICK->broadcast;
2508 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2551 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2509 2552
2510 Event::sweep;
2511 Coro::cede_notself;
2512
2513# my $AFTER = Event::time; 2553# my $AFTER = Event::time;
2514# warn $AFTER - $NOW;#d# 2554# warn $AFTER - $NOW;#d#
2515 2555
2516 # if we are delayed by four ticks or more, skip them all 2556 # if we are delayed by four ticks or more, skip them all
2517 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2557 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
… …
2519 $TICK_WATCHER->at ($NEXT_TICK); 2559 $TICK_WATCHER->at ($NEXT_TICK);
2520 $TICK_WATCHER->start; 2560 $TICK_WATCHER->start;
2521 }, 2561 },
2522); 2562);
2523 2563
2564{
2565 BDB::max_poll_time $TICK * 0.1;
2566 $BDB_POLL_WATCHER = Event->io (
2567 reentrant => 0,
2568 fd => BDB::poll_fileno,
2569 poll => 'r',
2570 prio => 0,
2571 data => WF_AUTOCANCEL,
2572 cb => \&BDB::poll_cb,
2573 );
2574 BDB::min_parallel 8;
2575
2576 BDB::set_sync_prepare {
2577 my $status;
2578 my $current = $Coro::current;
2579 (
2580 sub {
2581 $status = $!;
2582 $current->ready; undef $current;
2583 },
2584 sub {
2585 Coro::schedule while defined $current;
2586 $! = $status;
2587 },
2588 )
2589 };
2590
2591 unless ($DB_ENV) {
2592 $DB_ENV = BDB::db_env_create;
2593
2594 cf::sync_job {
2595 eval {
2596 BDB::db_env_open
2597 $DB_ENV,
2598 $BDB_ENV_DIR,
2599 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2600 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2601 0666;
2602
2603 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2604
2605 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2606 $DB_ENV->set_lk_detect;
2607 };
2608
2609 cf::cleanup "db_env_open(db): $@" if $@;
2610 };
2611 }
2612}
2613
2614{
2615 IO::AIO::min_parallel 8;
2616
2617 undef $Coro::AIO::WATCHER;
2524IO::AIO::max_poll_time $TICK * 0.1; 2618 IO::AIO::max_poll_time $TICK * 0.1;
2525
2526undef $Coro::AIO::WATCHER;
2527$AIO_POLL_WATCHER = Event->io ( 2619 $AIO_POLL_WATCHER = Event->io (
2528 reentrant => 0, 2620 reentrant => 0,
2621 data => WF_AUTOCANCEL,
2529 fd => IO::AIO::poll_fileno, 2622 fd => IO::AIO::poll_fileno,
2530 poll => 'r', 2623 poll => 'r',
2531 prio => 6, 2624 prio => 6,
2532 data => WF_AUTOCANCEL,
2533 cb => \&IO::AIO::poll_cb, 2625 cb => \&IO::AIO::poll_cb,
2534); 2626 );
2535 2627}
2536$WRITE_RUNTIME_WATCHER = Event->timer (
2537 reentrant => 0,
2538 data => WF_AUTOCANCEL,
2539 after => 1,
2540 interval => 10,
2541 prio => 6, # keep it lowest so it acts like a watchdog
2542 cb => Coro::unblock_sub {
2543 write_runtime
2544 or warn "ERROR: unable to write runtime file: $!";
2545 },
2546);
2547 2628
2548END { cf::emergency_save } 2629END { cf::emergency_save }
2549 2630
25501 26311
2551 2632

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