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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.439 by root, Mon Jul 14 16:42:49 2008 UTC vs.
Revision 1.478 by root, Thu Sep 17 01:57:31 2009 UTC

… …
19# The authors can be reached via e-mail to <support@deliantra.net> 19# The authors can be reached via e-mail to <support@deliantra.net>
20# 20#
21 21
22package cf; 22package cf;
23 23
24use 5.10.0;
24use utf8; 25use utf8;
25use strict; 26use strict qw(vars subs);
26 27
27use Symbol; 28use Symbol;
28use List::Util; 29use List::Util;
29use Socket; 30use Socket;
30use EV; 31use EV;
31use Opcode; 32use Opcode;
32use Safe; 33use Safe;
33use Safe::Hole; 34use Safe::Hole;
34use Storable (); 35use Storable ();
35 36
37use Guard ();
36use Coro (); 38use Coro ();
37use Coro::State; 39use Coro::State;
38use Coro::Handle; 40use Coro::Handle;
41use Coro::EV;
39use Coro::AnyEvent; 42use Coro::AnyEvent;
40use Coro::Timer; 43use Coro::Timer;
41use Coro::Signal; 44use Coro::Signal;
42use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
43use Coro::AnyEvent; 47use Coro::AnyEvent;
44use Coro::AIO; 48use Coro::AIO;
45use Coro::BDB 1.6; 49use Coro::BDB 1.6;
46use Coro::Storable; 50use Coro::Storable;
47use Coro::Util (); 51use Coro::Util ();
… …
61 65
62# configure various modules to our taste 66# configure various modules to our taste
63# 67#
64$Storable::canonical = 1; # reduce rsync transfers 68$Storable::canonical = 1; # reduce rsync transfers
65Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 69Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
70
71$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
72
73# make sure c-lzf reinitialises itself
74Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
66Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 75Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
67 76
68$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 77# strictly for debugging
78$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
69 79
70sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 80sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
71 81
72our %COMMAND = (); 82our %COMMAND = ();
73our %COMMAND_TIME = (); 83our %COMMAND_TIME = ();
… …
76our %EXTCMD = (); 86our %EXTCMD = ();
77our %EXTICMD = (); 87our %EXTICMD = ();
78our %EXT_CORO = (); # coroutines bound to extensions 88our %EXT_CORO = (); # coroutines bound to extensions
79our %EXT_MAP = (); # pluggable maps 89our %EXT_MAP = (); # pluggable maps
80 90
81our $RELOAD; # number of reloads so far 91our $RELOAD; # number of reloads so far, non-zero while in reload
82our @EVENT; 92our @EVENT;
83 93
84our $CONFDIR = confdir; 94our $CONFDIR = confdir;
85our $DATADIR = datadir; 95our $DATADIR = datadir;
86our $LIBDIR = "$DATADIR/ext"; 96our $LIBDIR = "$DATADIR/ext";
87our $PODDIR = "$DATADIR/pod"; 97our $PODDIR = "$DATADIR/pod";
88our $MAPDIR = "$DATADIR/" . mapdir; 98our $MAPDIR = "$DATADIR/" . mapdir;
89our $LOCALDIR = localdir; 99our $LOCALDIR = localdir;
90our $TMPDIR = "$LOCALDIR/" . tmpdir; 100our $TMPDIR = "$LOCALDIR/" . tmpdir;
91our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 101our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
92our $PLAYERDIR = "$LOCALDIR/" . playerdir; 102our $PLAYERDIR = "$LOCALDIR/" . playerdir;
93our $RANDOMDIR = "$LOCALDIR/random"; 103our $RANDOMDIR = "$LOCALDIR/random";
94our $BDBDIR = "$LOCALDIR/db"; 104our $BDBDIR = "$LOCALDIR/db";
105our $PIDFILE = "$LOCALDIR/pid";
106our $RUNTIMEFILE = "$LOCALDIR/runtime";
107
95our %RESOURCE; 108our %RESOURCE;
96 109
97our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 110our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
98our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 111our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
99our $NEXT_TICK; 112our $NEXT_TICK;
100our $USE_FSYNC = 1; # use fsync to write maps - default off 113our $USE_FSYNC = 1; # use fsync to write maps - default on
101 114
102our $BDB_DEADLOCK_WATCHER; 115our $BDB_DEADLOCK_WATCHER;
103our $BDB_CHECKPOINT_WATCHER; 116our $BDB_CHECKPOINT_WATCHER;
104our $BDB_TRICKLE_WATCHER; 117our $BDB_TRICKLE_WATCHER;
105our $DB_ENV; 118our $DB_ENV;
106 119
120our @EXTRA_MODULES = qw(pod mapscript);
121
107our %CFG; 122our %CFG;
108 123
109our $UPTIME; $UPTIME ||= time; 124our $UPTIME; $UPTIME ||= time;
110our $RUNTIME; 125our $RUNTIME;
111our $NOW; 126our $NOW;
… …
120our $LOAD; # a number between 0 (idle) and 1 (too many objects) 135our $LOAD; # a number between 0 (idle) and 1 (too many objects)
121our $LOADAVG; # same thing, but with alpha-smoothing 136our $LOADAVG; # same thing, but with alpha-smoothing
122our $JITTER; # average jitter 137our $JITTER; # average jitter
123our $TICK_START; # for load detecting purposes 138our $TICK_START; # for load detecting purposes
124 139
140our @POST_INIT;
141
142our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
143our $REALLY_UNLOOP; # never set to true, please :)
144
125binmode STDOUT; 145binmode STDOUT;
126binmode STDERR; 146binmode STDERR;
127 147
128# read virtual server time, if available 148# read virtual server time, if available
129unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 149unless ($RUNTIME || !-e $RUNTIMEFILE) {
130 open my $fh, "<", "$LOCALDIR/runtime" 150 open my $fh, "<", $RUNTIMEFILE
131 or die "unable to read runtime file: $!"; 151 or die "unable to read $RUNTIMEFILE file: $!";
132 $RUNTIME = <$fh> + 0.; 152 $RUNTIME = <$fh> + 0.;
133} 153}
154
155eval "sub TICK() { $TICK } 1" or die;
134 156
135mkdir $_ 157mkdir $_
136 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 158 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
137 159
138our $EMERGENCY_POSITION; 160our $EMERGENCY_POSITION;
… …
200 222
201=back 223=back
202 224
203=cut 225=cut
204 226
205BEGIN { 227$Coro::State::WARNHOOK = sub {
206 *CORE::GLOBAL::warn = sub {
207 my $msg = join "", @_; 228 my $msg = join "", @_;
208 229
209 $msg .= "\n" 230 $msg .= "\n"
210 unless $msg =~ /\n$/; 231 unless $msg =~ /\n$/;
211 232
212 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge; 233 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
213 234
214 LOG llevError, $msg; 235 LOG llevError, $msg;
215 }; 236};
216}
217 237
218$Coro::State::DIEHOOK = sub { 238$Coro::State::DIEHOOK = sub {
219 return unless $^S eq 0; # "eq", not "==" 239 return unless $^S eq 0; # "eq", not "=="
240
241 warn Carp::longmess $_[0];
220 242
221 if ($Coro::current == $Coro::main) {#d# 243 if ($Coro::current == $Coro::main) {#d#
222 warn "DIEHOOK called in main context, Coro bug?\n";#d# 244 warn "DIEHOOK called in main context, Coro bug?\n";#d#
223 return;#d# 245 return;#d#
224 }#d# 246 }#d#
225 247
226 # kill coroutine otherwise 248 # kill coroutine otherwise
227 warn Carp::longmess $_[0];
228 Coro::terminate 249 Coro::terminate
229}; 250};
230
231$SIG{__DIE__} = sub { }; #d#?
232 251
233@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 252@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
234@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 253@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
235@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 254@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
236@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 255@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
… …
243for my $pkg (qw( 262for my $pkg (qw(
244 cf::global cf::attachable 263 cf::global cf::attachable
245 cf::object cf::object::player 264 cf::object cf::object::player
246 cf::client cf::player 265 cf::client cf::player
247 cf::arch cf::living 266 cf::arch cf::living
267 cf::map cf::mapspace
248 cf::map cf::party cf::region 268 cf::party cf::region
249)) { 269)) {
250 no strict 'refs';
251 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 270 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
252} 271}
253 272
254$EV::DIED = sub { 273$EV::DIED = sub {
255 warn "error in event callback: @_"; 274 warn "error in event callback: @_";
… …
297our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 316our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
298 317
299sub encode_json($) { $json_coder->encode ($_[0]) } 318sub encode_json($) { $json_coder->encode ($_[0]) }
300sub decode_json($) { $json_coder->decode ($_[0]) } 319sub decode_json($) { $json_coder->decode ($_[0]) }
301 320
321=item cf::post_init { BLOCK }
322
323Execute the given codeblock, I<after> all extensions have been (re-)loaded,
324but I<before> the server starts ticking again.
325
326The cdoeblock will have a single boolean argument to indicate whether this
327is a reload or not.
328
329=cut
330
331sub post_init(&) {
332 push @POST_INIT, shift;
333}
334
302=item cf::lock_wait $string 335=item cf::lock_wait $string
303 336
304Wait until the given lock is available. See cf::lock_acquire. 337Wait until the given lock is available. See cf::lock_acquire.
305 338
306=item my $lock = cf::lock_acquire $string 339=item my $lock = cf::lock_acquire $string
307 340
308Wait until the given lock is available and then acquires it and returns 341Wait until the given lock is available and then acquires it and returns
309a Coro::guard object. If the guard object gets destroyed (goes out of scope, 342a L<Guard> object. If the guard object gets destroyed (goes out of scope,
310for example when the coroutine gets canceled), the lock is automatically 343for example when the coroutine gets canceled), the lock is automatically
311returned. 344returned.
312 345
313Locks are *not* recursive, locking from the same coro twice results in a 346Locks are *not* recursive, locking from the same coro twice results in a
314deadlocked coro. 347deadlocked coro.
… …
320 353
321Return true if the lock is currently active, i.e. somebody has locked it. 354Return true if the lock is currently active, i.e. somebody has locked it.
322 355
323=cut 356=cut
324 357
325our %LOCK; 358our $LOCKS = new Coro::SemaphoreSet;
326our %LOCKER;#d#
327 359
328sub lock_wait($) { 360sub lock_wait($) {
329 my ($key) = @_; 361 $LOCKS->wait ($_[0]);
330
331 if ($LOCKER{$key} == $Coro::current) {#d#
332 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
333 return;#d#
334 }#d#
335
336 # wait for lock, if any
337 while ($LOCK{$key}) {
338 push @{ $LOCK{$key} }, $Coro::current;
339 Coro::schedule;
340 }
341} 362}
342 363
343sub lock_acquire($) { 364sub lock_acquire($) {
344 my ($key) = @_; 365 $LOCKS->guard ($_[0])
345
346 # wait, to be sure we are not locked
347 lock_wait $key;
348
349 $LOCK{$key} = [];
350 $LOCKER{$key} = $Coro::current;#d#
351
352 Coro::guard {
353 delete $LOCKER{$key};#d#
354 # wake up all waiters, to be on the safe side
355 $_->ready for @{ delete $LOCK{$key} };
356 }
357} 366}
358 367
359sub lock_active($) { 368sub lock_active($) {
360 my ($key) = @_; 369 $LOCKS->count ($_[0]) < 1
361
362 ! ! $LOCK{$key}
363} 370}
364 371
365sub freeze_mainloop { 372sub freeze_mainloop {
366 tick_inhibit_inc; 373 tick_inhibit_inc;
367 374
368 Coro::guard \&tick_inhibit_dec; 375 &Guard::guard (\&tick_inhibit_dec);
369} 376}
370 377
371=item cf::periodic $interval, $cb 378=item cf::periodic $interval, $cb
372 379
373Like EV::periodic, but randomly selects a starting point so that the actions 380Like EV::periodic, but randomly selects a starting point so that the actions
… …
725 732
726############################################################################# 733#############################################################################
727 734
728=head2 ATTACHABLE OBJECTS 735=head2 ATTACHABLE OBJECTS
729 736
730Many objects in crossfire are so-called attachable objects. That means you can 737Many objects in deliantra are so-called attachable objects. That means you can
731attach callbacks/event handlers (a collection of which is called an "attachment") 738attach callbacks/event handlers (a collection of which is called an "attachment")
732to it. All such attachable objects support the following methods. 739to it. All such attachable objects support the following methods.
733 740
734In the following description, CLASS can be any of C<global>, C<object> 741In the following description, CLASS can be any of C<global>, C<object>
735C<player>, C<client> or C<map> (i.e. the attachable objects in 742C<player>, C<client> or C<map> (i.e. the attachable objects in
… …
785=item cf::CLASS::attachment $name, ... 792=item cf::CLASS::attachment $name, ...
786 793
787Register an attachment by C<$name> through which attachable objects of the 794Register an attachment by C<$name> through which attachable objects of the
788given CLASS can refer to this attachment. 795given CLASS can refer to this attachment.
789 796
790Some classes such as crossfire maps and objects can specify attachments 797Some classes such as deliantra maps and objects can specify attachments
791that are attached at load/instantiate time, thus the need for a name. 798that are attached at load/instantiate time, thus the need for a name.
792 799
793These calls expect any number of the following handler/hook descriptions: 800These calls expect any number of the following handler/hook descriptions:
794 801
795=over 4 802=over 4
… …
1086 1093
1087sub reattach { 1094sub reattach {
1088 # basically do the same as instantiate, without calling instantiate 1095 # basically do the same as instantiate, without calling instantiate
1089 my ($obj) = @_; 1096 my ($obj) = @_;
1090 1097
1098 # no longer needed after getting rid of delete_package?
1091 bless $obj, ref $obj; # re-bless in case extensions have been reloaded 1099 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1092 1100
1093 my $registry = $obj->registry; 1101 my $registry = $obj->registry;
1094 1102
1095 @$registry = (); 1103 @$registry = ();
1096 1104
… …
1144 $decname, length $$rdata, scalar @$objs; 1152 $decname, length $$rdata, scalar @$objs;
1145 1153
1146 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1154 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1147 aio_chmod $fh, SAVE_MODE; 1155 aio_chmod $fh, SAVE_MODE;
1148 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1156 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1149 aio_fsync $fh if $cf::USE_FSYNC; 1157 if ($cf::USE_FSYNC) {
1158 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1159 aio_fsync $fh;
1160 }
1150 aio_close $fh; 1161 aio_close $fh;
1151 1162
1152 if (@$objs) { 1163 if (@$objs) {
1153 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1164 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1154 aio_chmod $fh, SAVE_MODE; 1165 aio_chmod $fh, SAVE_MODE;
1155 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs }; 1166 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1156 aio_write $fh, 0, (length $data), $data, 0; 1167 aio_write $fh, 0, (length $data), $data, 0;
1157 aio_fsync $fh if $cf::USE_FSYNC; 1168 if ($cf::USE_FSYNC) {
1169 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1170 aio_fsync $fh;
1171 }
1158 aio_close $fh; 1172 aio_close $fh;
1159 aio_rename "$filename.pst~", "$filename.pst"; 1173 aio_rename "$filename.pst~", "$filename.pst";
1160 } 1174 }
1161 } else { 1175 } else {
1162 aio_unlink "$filename.pst"; 1176 aio_unlink "$filename.pst";
1163 } 1177 }
1164 1178
1165 aio_rename "$filename~", $filename; 1179 aio_rename "$filename~", $filename;
1180
1181 $filename =~ s%/[^/]+$%%;
1182 aio_pathsync $filename if $cf::USE_FSYNC;
1166 } else { 1183 } else {
1167 warn "FATAL: $filename~: $!\n"; 1184 warn "unable to save objects: $filename~: $!\n";
1168 } 1185 }
1169 } else { 1186 } else {
1170 aio_unlink $filename; 1187 aio_unlink $filename;
1171 aio_unlink "$filename.pst"; 1188 aio_unlink "$filename.pst";
1172 } 1189 }
… …
1263 my ($name, $cb) = @_; 1280 my ($name, $cb) = @_;
1264 1281
1265 $EXTICMD{$name} = $cb; 1282 $EXTICMD{$name} = $cb;
1266} 1283}
1267 1284
1285use File::Glob ();
1286
1268cf::player->attach ( 1287cf::player->attach (
1269 on_command => sub { 1288 on_command => sub {
1270 my ($pl, $name, $params) = @_; 1289 my ($pl, $name, $params) = @_;
1271 1290
1272 my $cb = $COMMAND{$name} 1291 my $cb = $COMMAND{$name}
… …
1304 1323
1305 cf::override; 1324 cf::override;
1306 }, 1325 },
1307); 1326);
1308 1327
1328# "readahead" all extensions
1329sub cache_extensions {
1330 my $grp = IO::AIO::aio_group;
1331
1332 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1333 for (grep /\.ext$/, @{$_[0]}) {
1334 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1335 }
1336 };
1337
1338 $grp
1339}
1340
1309sub load_extensions { 1341sub load_extensions {
1310 cf::sync_job { 1342 cf::sync_job {
1311 my %todo; 1343 my %todo;
1312 1344
1313 for my $path (<$LIBDIR/*.ext>) { 1345 for my $path (<$LIBDIR/*.ext>) {
… …
1332 1364
1333 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 } 1365 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1334 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m; 1366 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1335 1367
1336 $ext{source} = 1368 $ext{source} =
1337 "package $pkg; use strict; use utf8;\n" 1369 "package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
1338 . "#line 1 \"$path\"\n{\n" 1370 . "#line 1 \"$path\"\n{\n"
1339 . $source 1371 . $source
1340 . "\n};\n1"; 1372 . "\n};\n1";
1341 1373
1342 $todo{$base} = \%ext; 1374 $todo{$base} = \%ext;
… …
1382 1414
1383=back 1415=back
1384 1416
1385=head2 CORE EXTENSIONS 1417=head2 CORE EXTENSIONS
1386 1418
1387Functions and methods that extend core crossfire objects. 1419Functions and methods that extend core deliantra objects.
1388 1420
1389=cut 1421=cut
1390 1422
1391package cf::player; 1423package cf::player;
1392 1424
… …
1435 1467
1436sub exists($) { 1468sub exists($) {
1437 my ($login) = @_; 1469 my ($login) = @_;
1438 1470
1439 $cf::PLAYER{$login} 1471 $cf::PLAYER{$login}
1440 or cf::sync_job { !aio_stat path $login } 1472 or !aio_stat path $login
1441} 1473}
1442 1474
1443sub find($) { 1475sub find($) {
1444 return $cf::PLAYER{$_[0]} || do { 1476 return $cf::PLAYER{$_[0]} || do {
1445 my $login = $_[0]; 1477 my $login = $_[0];
… …
1520 my ($pl) = @_; 1552 my ($pl) = @_;
1521 1553
1522 my $name = $pl->ob->name; 1554 my $name = $pl->ob->name;
1523 1555
1524 $pl->{deny_save} = 1; 1556 $pl->{deny_save} = 1;
1525 $pl->password ("*"); # this should lock out the player until we nuked the dir 1557 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1526 1558
1527 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1559 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1528 $pl->deactivate; 1560 $pl->deactivate;
1529 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy; 1561 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1530 $pl->ob->check_score; 1562 $pl->ob->check_score;
… …
1616 } 1648 }
1617 1649
1618 \@paths 1650 \@paths
1619} 1651}
1620 1652
1621=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1653=item $protocol_xml = $player->expand_cfpod ($cfpod)
1622 1654
1623Expand crossfire pod fragments into protocol xml. 1655Expand deliantra pod fragments into protocol xml.
1624
1625=cut
1626
1627use re 'eval';
1628
1629my $group;
1630my $interior; $interior = qr{
1631 # match a pod interior sequence sans C<< >>
1632 (?:
1633 \ (.*?)\ (?{ $group = $^N })
1634 | < (??{$interior}) >
1635 )
1636}x;
1637
1638sub expand_cfpod {
1639 my ($self, $pod) = @_;
1640
1641 my $xml;
1642
1643 while () {
1644 if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
1645 $group = $1;
1646
1647 $group =~ s/&/&amp;/g;
1648 $group =~ s/</&lt;/g;
1649
1650 $xml .= $group;
1651 } elsif ($pod =~ m%\G
1652 ([BCGHITU])
1653 <
1654 (?:
1655 ([^<>]*) (?{ $group = $^N })
1656 | < $interior >
1657 )
1658 >
1659 %gcsx
1660 ) {
1661 my ($code, $data) = ($1, $group);
1662
1663 if ($code eq "B") {
1664 $xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
1665 } elsif ($code eq "I") {
1666 $xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
1667 } elsif ($code eq "U") {
1668 $xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
1669 } elsif ($code eq "C") {
1670 $xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
1671 } elsif ($code eq "T") {
1672 $xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
1673 } elsif ($code eq "G") {
1674 my ($male, $female) = split /\|/, $data;
1675 $data = $self->gender ? $female : $male;
1676 $xml .= expand_cfpod ($self, $data);
1677 } elsif ($code eq "H") {
1678 $xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
1679 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1680 "")
1681 [$self->{hintmode}];
1682 } else {
1683 $xml .= "error processing '$code($data)' directive";
1684 }
1685 } else {
1686 if ($pod =~ /\G(.+)/) {
1687 warn "parse error while expanding $pod (at $1)";
1688 }
1689 last;
1690 }
1691 }
1692
1693 for ($xml) {
1694 # create single paragraphs (very hackish)
1695 s/(?<=\S)\n(?=\w)/ /g;
1696
1697 # compress some whitespace
1698 s/\s+\n/\n/g; # ws line-ends
1699 s/\n\n+/\n/g; # double lines
1700 s/^\n+//; # beginning lines
1701 s/\n+$//; # ending lines
1702 }
1703
1704 $xml
1705}
1706
1707no re 'eval';
1708
1709sub hintmode {
1710 $_[0]{hintmode} = $_[1] if @_ > 1;
1711 $_[0]{hintmode}
1712}
1713 1656
1714=item $player->ext_reply ($msgid, @msg) 1657=item $player->ext_reply ($msgid, @msg)
1715 1658
1716Sends an ext reply to the player. 1659Sends an ext reply to the player.
1717 1660
… …
1930 1873
1931 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go; 1874 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1932 "$UNIQUEDIR/$path" 1875 "$UNIQUEDIR/$path"
1933} 1876}
1934 1877
1935# and all this just because we cannot iterate over
1936# all maps in C++...
1937sub change_all_map_light {
1938 my ($change) = @_;
1939
1940 $_->change_map_light ($change)
1941 for grep $_->outdoor, values %cf::MAP;
1942}
1943
1944sub decay_objects { 1878sub decay_objects {
1945 my ($self) = @_; 1879 my ($self) = @_;
1946 1880
1947 return if $self->{deny_reset}; 1881 return if $self->{deny_reset};
1948 1882
… …
2030sub find { 1964sub find {
2031 my ($path, $origin) = @_; 1965 my ($path, $origin) = @_;
2032 1966
2033 $path = normalise $path, $origin && $origin->path; 1967 $path = normalise $path, $origin && $origin->path;
2034 1968
2035 cf::lock_wait "map_data:$path";#d#remove 1969 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2036 cf::lock_wait "map_find:$path"; 1970 my $guard2 = cf::lock_acquire "map_find:$path";
2037 1971
2038 $cf::MAP{$path} || do { 1972 $cf::MAP{$path} || do {
2039 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
2040 my $guard2 = cf::lock_acquire "map_find:$path";
2041
2042 my $map = new_from_path cf::map $path 1973 my $map = new_from_path cf::map $path
2043 or return; 1974 or return;
2044 1975
2045 $map->{last_save} = $cf::RUNTIME; 1976 $map->{last_save} = $cf::RUNTIME;
2046 1977
… …
2114 unless ($self->{deny_activate}) { 2045 unless ($self->{deny_activate}) {
2115 $self->decay_objects; 2046 $self->decay_objects;
2116 $self->fix_auto_apply; 2047 $self->fix_auto_apply;
2117 $self->update_buttons; 2048 $self->update_buttons;
2118 cf::cede_to_tick; 2049 cf::cede_to_tick;
2119 $self->set_darkness_map;
2120 cf::cede_to_tick;
2121 $self->activate; 2050 $self->activate;
2122 } 2051 }
2123 2052
2124 $self->{last_save} = $cf::RUNTIME; 2053 $self->{last_save} = $cf::RUNTIME;
2125 $self->last_access ($cf::RUNTIME); 2054 $self->last_access ($cf::RUNTIME);
… …
2291 2220
2292 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2221 my $lock = cf::lock_acquire "map_data:$self->{path}";
2293 2222
2294 return if $self->players; 2223 return if $self->players;
2295 2224
2296 warn "resetting map ", $self->path; 2225 warn "resetting map ", $self->path, "\n";
2297 2226
2298 $self->in_memory (cf::MAP_SWAPPED); 2227 $self->in_memory (cf::MAP_SWAPPED);
2299 2228
2300 # need to save uniques path 2229 # need to save uniques path
2301 unless ($self->{deny_save}) { 2230 unless ($self->{deny_save}) {
… …
2466 2395
2467our $SAY_CHANNEL = { 2396our $SAY_CHANNEL = {
2468 id => "say", 2397 id => "say",
2469 title => "Map", 2398 title => "Map",
2470 reply => "say ", 2399 reply => "say ",
2471 tooltip => "Things said to and replied from npcs near you and other players on the same map only.", 2400 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2472}; 2401};
2473 2402
2474our $CHAT_CHANNEL = { 2403our $CHAT_CHANNEL = {
2475 id => "chat", 2404 id => "chat",
2476 title => "Chat", 2405 title => "Chat",
… …
2531 2460
2532=item $player_object->enter_link 2461=item $player_object->enter_link
2533 2462
2534Freezes the player and moves him/her to a special map (C<{link}>). 2463Freezes the player and moves him/her to a special map (C<{link}>).
2535 2464
2536The player should be reasonably safe there for short amounts of time. You 2465The player should be reasonably safe there for short amounts of time (e.g.
2537I<MUST> call C<leave_link> as soon as possible, though. 2466for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2467though, as the palyer cannot control the character while it is on the link
2468map.
2538 2469
2539Will never block. 2470Will never block.
2540 2471
2541=item $player_object->leave_link ($map, $x, $y) 2472=item $player_object->leave_link ($map, $x, $y)
2542 2473
… …
2600 2531
2601 $map->load; 2532 $map->load;
2602 $map->load_neighbours; 2533 $map->load_neighbours;
2603 2534
2604 return unless $self->contr->active; 2535 return unless $self->contr->active;
2605 $self->activate_recursive;
2606 2536
2607 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2537 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2608 $self->enter_map ($map, $x, $y); 2538 $self->enter_map ($map, $x, $y);
2539
2540 # only activate afterwards, to support waiting in hooks
2541 $self->activate_recursive;
2609} 2542}
2610 2543
2611=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]]) 2544=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2612 2545
2613Moves the player to the given map-path and coordinates by first freezing 2546Moves the player to the given map-path and coordinates by first freezing
… …
2772 $self->contr->savebed ($map, $x, $y) 2705 $self->contr->savebed ($map, $x, $y)
2773 if $exit->flag (cf::FLAG_DAMNED); 2706 if $exit->flag (cf::FLAG_DAMNED);
2774 2707
2775 1 2708 1
2776 }) { 2709 }) {
2777 $self->message ("Something went wrong deep within the crossfire server. " 2710 $self->message ("Something went wrong deep within the deliantra server. "
2778 . "I'll try to bring you back to the map you were before. " 2711 . "I'll try to bring you back to the map you were before. "
2779 . "Please report this to the dungeon master!", 2712 . "Please report this to the dungeon master!",
2780 cf::NDI_UNIQUE | cf::NDI_RED); 2713 cf::NDI_UNIQUE | cf::NDI_RED);
2781 2714
2782 warn "ERROR in enter_exit: $@"; 2715 warn "ERROR in enter_exit: $@";
… …
2848 id => "infobox", 2781 id => "infobox",
2849 title => "Body Parts", 2782 title => "Body Parts",
2850 reply => undef, 2783 reply => undef,
2851 tooltip => "Shows which body parts you posess and are available", 2784 tooltip => "Shows which body parts you posess and are available",
2852 }, 2785 },
2786 "c/statistics" => {
2787 id => "infobox",
2788 title => "Statistics",
2789 reply => undef,
2790 tooltip => "Shows your primary statistics",
2791 },
2792 "c/skills" => {
2793 id => "infobox",
2794 title => "Skills",
2795 reply => undef,
2796 tooltip => "Shows your experience per skill and item power",
2797 },
2798 "c/shopitems" => {
2799 id => "infobox",
2800 title => "Shop Items",
2801 reply => undef,
2802 tooltip => "Shows the items currently for sale in this shop",
2803 },
2804 "c/resistances" => {
2805 id => "infobox",
2806 title => "Resistances",
2807 reply => undef,
2808 tooltip => "Shows your resistances",
2809 },
2810 "c/pets" => {
2811 id => "infobox",
2812 title => "Pets",
2813 reply => undef,
2814 tooltip => "Shows information abotu your pets/a specific pet",
2815 },
2816 "c/perceiveself" => {
2817 id => "infobox",
2818 title => "Perceive Self",
2819 reply => undef,
2820 tooltip => "You gained detailed knowledge about yourself",
2821 },
2853 "c/uptime" => { 2822 "c/uptime" => {
2854 id => "infobox", 2823 id => "infobox",
2855 title => "Uptime", 2824 title => "Uptime",
2856 reply => undef, 2825 reply => undef,
2857 tooltip => "How long the server has been running since last restart", 2826 tooltip => "How long the server has been running since last restart",
… …
2866 id => "party", 2835 id => "party",
2867 title => "Party", 2836 title => "Party",
2868 reply => "gsay ", 2837 reply => "gsay ",
2869 tooltip => "Messages and chat related to your party", 2838 tooltip => "Messages and chat related to your party",
2870 }, 2839 },
2840 "c/death" => {
2841 id => "death",
2842 title => "Death",
2843 reply => undef,
2844 tooltip => "Reason for and more info about your most recent death",
2845 },
2846 "c/say" => $SAY_CHANNEL,
2847 "c/chat" => $CHAT_CHANNEL,
2871); 2848);
2872 2849
2873sub cf::client::send_msg { 2850sub cf::client::send_msg {
2874 my ($self, $channel, $msg, $color, @extra) = @_; 2851 my ($self, $channel, $msg, $color, @extra) = @_;
2875 2852
2876 $msg = $self->pl->expand_cfpod ($msg); 2853 $msg = $self->pl->expand_cfpod ($msg)
2854 unless $color & cf::NDI_VERBATIM;
2877 2855
2878 $color &= cf::NDI_CLIENT_MASK; # just in case... 2856 $color &= cf::NDI_CLIENT_MASK; # just in case...
2879 2857
2880 # check predefined channels, for the benefit of C 2858 # check predefined channels, for the benefit of C
2881 if ($CHANNEL{$channel}) { 2859 if ($CHANNEL{$channel}) {
2882 $channel = $CHANNEL{$channel}; 2860 $channel = $CHANNEL{$channel};
2883 2861
2884 $self->ext_msg (channel_info => $channel) 2862 $self->ext_msg (channel_info => $channel);
2885 if $self->can_msg;
2886
2887 $channel = $channel->{id}; 2863 $channel = $channel->{id};
2888 2864
2889 } elsif (ref $channel) { 2865 } elsif (ref $channel) {
2890 # send meta info to client, if not yet sent 2866 # send meta info to client, if not yet sent
2891 unless (exists $self->{channel}{$channel->{id}}) { 2867 unless (exists $self->{channel}{$channel->{id}}) {
2892 $self->{channel}{$channel->{id}} = $channel; 2868 $self->{channel}{$channel->{id}} = $channel;
2893 $self->ext_msg (channel_info => $channel) 2869 $self->ext_msg (channel_info => $channel);
2894 if $self->can_msg;
2895 } 2870 }
2896 2871
2897 $channel = $channel->{id}; 2872 $channel = $channel->{id};
2898 } 2873 }
2899 2874
2900 return unless @extra || length $msg; 2875 return unless @extra || length $msg;
2901 2876
2902 if ($self->can_msg) {
2903 # default colour, mask it out 2877 # default colour, mask it out
2904 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF) 2878 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2905 if $color & cf::NDI_DEF; 2879 if $color & cf::NDI_DEF;
2906 2880
2907 $self->send_packet ("msg " . $self->{json_coder}->encode ( 2881 my $pkt = "msg "
2882 . $self->{json_coder}->encode (
2908 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra])); 2883 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2909 } else { 2884 );
2910 if ($color >= 0) {
2911 # replace some tags by gcfclient-compatible ones
2912 for ($msg) {
2913 1 while
2914 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2915 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2916 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2917 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2918 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2919 }
2920 2885
2921 $color &= cf::NDI_COLOR_MASK; 2886 # try lzf for large packets
2887 $pkt = "lzf " . Compress::LZF::compress $pkt
2888 if 1024 <= length $pkt and $self->{can_lzf};
2922 2889
2923 utf8::encode $msg; 2890 # split very large packets
2924 2891 if (8192 < length $pkt and $self->{can_lzf}) {
2925 if (0 && $msg =~ /\[/) { 2892 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2926 # COMMAND/INFO 2893 $pkt = "frag";
2927 $self->send_packet ("drawextinfo $color 10 8 $msg")
2928 } else {
2929 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2930 $self->send_packet ("drawinfo $color $msg")
2931 }
2932 }
2933 } 2894 }
2895
2896 $self->send_packet ($pkt);
2934} 2897}
2935 2898
2936=item $client->ext_msg ($type, @msg) 2899=item $client->ext_msg ($type, @msg)
2937 2900
2938Sends an ext event to the client. 2901Sends an ext event to the client.
… …
3113The following functions and methods are available within a safe environment: 3076The following functions and methods are available within a safe environment:
3114 3077
3115 cf::object 3078 cf::object
3116 contr pay_amount pay_player map x y force_find force_add destroy 3079 contr pay_amount pay_player map x y force_find force_add destroy
3117 insert remove name archname title slaying race decrease split 3080 insert remove name archname title slaying race decrease split
3081 value
3118 3082
3119 cf::object::player 3083 cf::object::player
3120 player 3084 player
3121 3085
3122 cf::player 3086 cf::player
… …
3128=cut 3092=cut
3129 3093
3130for ( 3094for (
3131 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y 3095 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3132 insert remove inv nrof name archname title slaying race 3096 insert remove inv nrof name archname title slaying race
3133 decrease split destroy change_exp)], 3097 decrease split destroy change_exp value msg lore send_msg)],
3134 ["cf::object::player" => qw(player)], 3098 ["cf::object::player" => qw(player)],
3135 ["cf::player" => qw(peaceful)], 3099 ["cf::player" => qw(peaceful send_msg)],
3136 ["cf::map" => qw(trigger)], 3100 ["cf::map" => qw(trigger)],
3137) { 3101) {
3138 no strict 'refs'; 3102 no strict 'refs';
3139 my ($pkg, @funs) = @$_; 3103 my ($pkg, @funs) = @$_;
3140 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3104 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
… …
3157 my ($code, %vars) = @_; 3121 my ($code, %vars) = @_;
3158 3122
3159 my $qcode = $code; 3123 my $qcode = $code;
3160 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3124 $qcode =~ s/"/‟/g; # not allowed in #line filenames
3161 $qcode =~ s/\n/\\n/g; 3125 $qcode =~ s/\n/\\n/g;
3126
3127 %vars = (_dummy => 0) unless %vars;
3162 3128
3163 local $_; 3129 local $_;
3164 local @safe::cf::_safe_eval_args = values %vars; 3130 local @safe::cf::_safe_eval_args = values %vars;
3165 3131
3166 my $eval = 3132 my $eval =
… …
3396 reload_treasures; 3362 reload_treasures;
3397 3363
3398 warn "finished reloading resource files\n"; 3364 warn "finished reloading resource files\n";
3399} 3365}
3400 3366
3401sub init {
3402 my $guard = freeze_mainloop;
3403
3404 evthread_start IO::AIO::poll_fileno;
3405
3406 reload_resources;
3407}
3408
3409sub reload_config { 3367sub reload_config {
3410 open my $fh, "<:utf8", "$CONFDIR/config" 3368 open my $fh, "<:utf8", "$CONFDIR/config"
3411 or return; 3369 or return;
3412 3370
3413 local $/; 3371 local $/;
… …
3425 }; 3383 };
3426 warn $@ if $@; 3384 warn $@ if $@;
3427 } 3385 }
3428} 3386}
3429 3387
3388sub pidfile() {
3389 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3390 or die "$PIDFILE: $!";
3391 flock $fh, &Fcntl::LOCK_EX
3392 or die "$PIDFILE: flock: $!";
3393 $fh
3394}
3395
3396# make sure only one server instance is running at any one time
3397sub atomic {
3398 my $fh = pidfile;
3399
3400 my $pid = <$fh>;
3401 kill 9, $pid if $pid > 0;
3402
3403 seek $fh, 0, 0;
3404 print $fh $$;
3405}
3406
3407sub main_loop {
3408 warn "EV::loop starting\n";
3409 if (1) {
3410 EV::loop;
3411 }
3412 warn "EV::loop returned\n";
3413 goto &main_loop unless $REALLY_UNLOOP;
3414}
3415
3430sub main { 3416sub main {
3417 cf::init_globals; # initialise logging
3418
3419 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3420 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3421 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3422 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3423
3424 cf::init_experience;
3425 cf::init_anim;
3426 cf::init_attackmess;
3427 cf::init_dynamic;
3428
3429 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3430
3431 # we must not ever block the main coroutine 3431 # we must not ever block the main coroutine
3432 local $Coro::idle = sub { 3432 local $Coro::idle = sub {
3433 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3433 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3434 (async { 3434 (async {
3435 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3435 $Coro::current->{desc} = "IDLE BUG HANDLER";
3436 EV::loop EV::LOOP_ONESHOT; 3436 EV::loop EV::LOOP_ONESHOT;
3437 })->prio (Coro::PRIO_MAX); 3437 })->prio (Coro::PRIO_MAX);
3438 }; 3438 };
3439 3439
3440 { 3440 evthread_start IO::AIO::poll_fileno;
3441 my $guard = freeze_mainloop; 3441
3442 cf::sync_job {
3443 reload_resources;
3442 reload_config; 3444 reload_config;
3443 db_init; 3445 db_init;
3446
3447 cf::load_settings;
3448 cf::load_materials;
3449 cf::init_uuid;
3450 cf::init_signals;
3451 cf::init_commands;
3452 cf::init_skills;
3453
3454 cf::init_beforeplay;
3455
3456 atomic;
3457
3444 load_extensions; 3458 load_extensions;
3445 3459
3446 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3460 utime time, time, $RUNTIMEFILE;
3461
3462 # no (long-running) fork's whatsoever before this point(!)
3463 use POSIX ();
3464 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3465
3466 (pop @POST_INIT)->(0) while @POST_INIT;
3447 } 3467 };
3448 3468
3449 EV::loop; 3469 main_loop;
3450} 3470}
3451 3471
3452############################################################################# 3472#############################################################################
3453# initialisation and cleanup 3473# initialisation and cleanup
3454 3474
… …
3461 }; 3481 };
3462 } 3482 }
3463} 3483}
3464 3484
3465sub write_runtime_sync { 3485sub write_runtime_sync {
3466 my $runtime = "$LOCALDIR/runtime";
3467
3468 # first touch the runtime file to show we are still running: 3486 # first touch the runtime file to show we are still running:
3469 # the fsync below can take a very very long time. 3487 # the fsync below can take a very very long time.
3470 3488
3471 IO::AIO::aio_utime $runtime, undef, undef; 3489 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3472 3490
3473 my $guard = cf::lock_acquire "write_runtime"; 3491 my $guard = cf::lock_acquire "write_runtime";
3474 3492
3475 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3493 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3476 or return; 3494 or return;
3477 3495
3478 my $value = $cf::RUNTIME + 90 + 10; 3496 my $value = $cf::RUNTIME + 90 + 10;
3479 # 10 is the runtime save interval, for a monotonic clock 3497 # 10 is the runtime save interval, for a monotonic clock
3480 # 60 allows for the watchdog to kill the server. 3498 # 60 allows for the watchdog to kill the server.
… …
3490 aio_utime $fh, undef, undef; 3508 aio_utime $fh, undef, undef;
3491 3509
3492 close $fh 3510 close $fh
3493 or return; 3511 or return;
3494 3512
3495 aio_rename "$runtime~", $runtime 3513 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3496 and return; 3514 and return;
3497 3515
3498 warn "runtime file written.\n"; 3516 warn "runtime file written.\n";
3499 3517
3500 1 3518 1
… …
3512 my $uuid = "$LOCALDIR/uuid"; 3530 my $uuid = "$LOCALDIR/uuid";
3513 3531
3514 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3532 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3515 or return; 3533 or return;
3516 3534
3517 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3535 my $value = uuid_seq uuid_cur;
3536
3537 unless ($value) {
3538 warn "cowardly refusing to write zero uuid value!\n";
3539 return;
3540 }
3541
3542 my $value = uuid_str $value + $uuid_skip;
3518 $uuid_skip = 0; 3543 $uuid_skip = 0;
3519 3544
3520 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3545 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3521 and return; 3546 and return;
3522 3547
… …
3544} 3569}
3545 3570
3546sub emergency_save() { 3571sub emergency_save() {
3547 my $freeze_guard = cf::freeze_mainloop; 3572 my $freeze_guard = cf::freeze_mainloop;
3548 3573
3549 warn "enter emergency perl save\n"; 3574 warn "emergency_perl_save: enter\n";
3550 3575
3551 cf::sync_job { 3576 cf::sync_job {
3577 # this is a trade-off: we want to be very quick here, so
3578 # save all maps without fsync, and later call a global sync
3579 # (which in turn might be very very slow)
3580 local $USE_FSYNC = 0;
3581
3552 # use a peculiar iteration method to avoid tripping on perl 3582 # use a peculiar iteration method to avoid tripping on perl
3553 # refcount bugs in for. also avoids problems with players 3583 # refcount bugs in for. also avoids problems with players
3554 # and maps saved/destroyed asynchronously. 3584 # and maps saved/destroyed asynchronously.
3555 warn "begin emergency player save\n"; 3585 warn "emergency_perl_save: begin player save\n";
3556 for my $login (keys %cf::PLAYER) { 3586 for my $login (keys %cf::PLAYER) {
3557 my $pl = $cf::PLAYER{$login} or next; 3587 my $pl = $cf::PLAYER{$login} or next;
3558 $pl->valid or next; 3588 $pl->valid or next;
3559 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3589 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3560 $pl->save; 3590 $pl->save;
3561 } 3591 }
3562 warn "end emergency player save\n"; 3592 warn "emergency_perl_save: end player save\n";
3563 3593
3564 warn "begin emergency map save\n"; 3594 warn "emergency_perl_save: begin map save\n";
3565 for my $path (keys %cf::MAP) { 3595 for my $path (keys %cf::MAP) {
3566 my $map = $cf::MAP{$path} or next; 3596 my $map = $cf::MAP{$path} or next;
3567 $map->valid or next; 3597 $map->valid or next;
3568 $map->save; 3598 $map->save;
3569 } 3599 }
3570 warn "end emergency map save\n"; 3600 warn "emergency_perl_save: end map save\n";
3571 3601
3572 warn "begin emergency database checkpoint\n"; 3602 warn "emergency_perl_save: begin database checkpoint\n";
3573 BDB::db_env_txn_checkpoint $DB_ENV; 3603 BDB::db_env_txn_checkpoint $DB_ENV;
3574 warn "end emergency database checkpoint\n"; 3604 warn "emergency_perl_save: end database checkpoint\n";
3575 3605
3576 warn "begin write uuid\n"; 3606 warn "emergency_perl_save: begin write uuid\n";
3577 write_uuid_sync 1; 3607 write_uuid_sync 1;
3578 warn "end write uuid\n"; 3608 warn "emergency_perl_save: end write uuid\n";
3579 }; 3609 };
3580 3610
3611 warn "emergency_perl_save: starting sync()\n";
3612 IO::AIO::aio_sync sub {
3613 warn "emergency_perl_save: finished sync()\n";
3614 };
3615
3581 warn "leave emergency perl save\n"; 3616 warn "emergency_perl_save: leave\n";
3582} 3617}
3583 3618
3584sub post_cleanup { 3619sub post_cleanup {
3585 my ($make_core) = @_; 3620 my ($make_core) = @_;
3586 3621
3587 warn Carp::longmess "post_cleanup backtrace" 3622 warn Carp::longmess "post_cleanup backtrace"
3588 if $make_core; 3623 if $make_core;
3624
3625 my $fh = pidfile;
3626 unlink $PIDFILE if <$fh> == $$;
3627}
3628
3629# a safer delete_package, copied from Symbol
3630sub clear_package($) {
3631 my $pkg = shift;
3632
3633 # expand to full symbol table name if needed
3634 unless ($pkg =~ /^main::.*::$/) {
3635 $pkg = "main$pkg" if $pkg =~ /^::/;
3636 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3637 $pkg .= '::' unless $pkg =~ /::$/;
3638 }
3639
3640 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3641 my $stem_symtab = *{$stem}{HASH};
3642
3643 defined $stem_symtab and exists $stem_symtab->{$leaf}
3644 or return;
3645
3646 # clear all symbols
3647 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3648 for my $name (keys %$leaf_symtab) {
3649 _gv_clear *{"$pkg$name"};
3650# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3651 }
3652 warn "cleared package $pkg\n";#d#
3589} 3653}
3590 3654
3591sub do_reload_perl() { 3655sub do_reload_perl() {
3592 # can/must only be called in main 3656 # can/must only be called in main
3593 if ($Coro::current != $Coro::main) { 3657 if ($Coro::current != $Coro::main) {
3594 warn "can only reload from main coroutine"; 3658 warn "can only reload from main coroutine";
3595 return; 3659 return;
3596 } 3660 }
3597 3661
3662 return if $RELOAD++;
3663
3664 my $t1 = EV::time;
3665
3666 while ($RELOAD) {
3598 warn "reloading..."; 3667 warn "reloading...";
3599 3668
3600 warn "entering sync_job"; 3669 warn "entering sync_job";
3601 3670
3602 cf::sync_job { 3671 cf::sync_job {
3603 cf::write_runtime_sync; # external watchdog should not bark 3672 cf::write_runtime_sync; # external watchdog should not bark
3604 cf::emergency_save; 3673 cf::emergency_save;
3605 cf::write_runtime_sync; # external watchdog should not bark 3674 cf::write_runtime_sync; # external watchdog should not bark
3606 3675
3607 warn "syncing database to disk"; 3676 warn "syncing database to disk";
3608 BDB::db_env_txn_checkpoint $DB_ENV; 3677 BDB::db_env_txn_checkpoint $DB_ENV;
3609 3678
3610 # if anything goes wrong in here, we should simply crash as we already saved 3679 # if anything goes wrong in here, we should simply crash as we already saved
3611 3680
3612 warn "flushing outstanding aio requests"; 3681 warn "flushing outstanding aio requests";
3613 for (;;) {
3614 BDB::flush;
3615 IO::AIO::flush;
3616 Coro::cede_notself;
3617 last unless IO::AIO::nreqs || BDB::nreqs; 3682 while (IO::AIO::nreqs || BDB::nreqs) {
3618 warn "iterate..."; 3683 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3619 }
3620
3621 ++$RELOAD;
3622
3623 warn "cancelling all extension coros";
3624 $_->cancel for values %EXT_CORO;
3625 %EXT_CORO = ();
3626
3627 warn "removing commands";
3628 %COMMAND = ();
3629
3630 warn "removing ext/exti commands";
3631 %EXTCMD = ();
3632 %EXTICMD = ();
3633
3634 warn "unloading/nuking all extensions";
3635 for my $pkg (@EXTS) {
3636 warn "... unloading $pkg";
3637
3638 if (my $cb = $pkg->can ("unload")) {
3639 eval {
3640 $cb->($pkg);
3641 1
3642 } or warn "$pkg unloaded, but with errors: $@";
3643 } 3684 }
3644 3685
3645 warn "... nuking $pkg"; 3686 warn "cancelling all extension coros";
3646 Symbol::delete_package $pkg; 3687 $_->cancel for values %EXT_CORO;
3647 } 3688 %EXT_CORO = ();
3648 3689
3649 warn "unloading all perl modules loaded from $LIBDIR"; 3690 warn "removing commands";
3650 while (my ($k, $v) = each %INC) { 3691 %COMMAND = ();
3651 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3652 3692
3693 warn "removing ext/exti commands";
3694 %EXTCMD = ();
3695 %EXTICMD = ();
3696
3697 warn "unloading/nuking all extensions";
3698 for my $pkg (@EXTS) {
3653 warn "... unloading $k"; 3699 warn "... unloading $pkg";
3654 delete $INC{$k};
3655 3700
3656 $k =~ s/\.pm$//;
3657 $k =~ s/\//::/g;
3658
3659 if (my $cb = $k->can ("unload_module")) { 3701 if (my $cb = $pkg->can ("unload")) {
3702 eval {
3660 $cb->(); 3703 $cb->($pkg);
3704 1
3705 } or warn "$pkg unloaded, but with errors: $@";
3706 }
3707
3708 warn "... clearing $pkg";
3709 clear_package $pkg;
3661 } 3710 }
3662 3711
3663 Symbol::delete_package $k; 3712 warn "unloading all perl modules loaded from $LIBDIR";
3713 while (my ($k, $v) = each %INC) {
3714 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3715
3716 warn "... unloading $k";
3717 delete $INC{$k};
3718
3719 $k =~ s/\.pm$//;
3720 $k =~ s/\//::/g;
3721
3722 if (my $cb = $k->can ("unload_module")) {
3723 $cb->();
3724 }
3725
3726 clear_package $k;
3664 } 3727 }
3665 3728
3666 warn "getting rid of safe::, as good as possible"; 3729 warn "getting rid of safe::, as good as possible";
3667 Symbol::delete_package "safe::$_" 3730 clear_package "safe::$_"
3668 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3731 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3669 3732
3670 warn "unloading cf.pm \"a bit\""; 3733 warn "unloading cf.pm \"a bit\"";
3671 delete $INC{"cf.pm"}; 3734 delete $INC{"cf.pm"};
3672 delete $INC{"cf/pod.pm"}; 3735 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3673 3736
3674 # don't, removes xs symbols, too, 3737 # don't, removes xs symbols, too,
3675 # and global variables created in xs 3738 # and global variables created in xs
3676 #Symbol::delete_package __PACKAGE__; 3739 #clear_package __PACKAGE__;
3677 3740
3678 warn "unload completed, starting to reload now"; 3741 warn "unload completed, starting to reload now";
3679 3742
3680 warn "reloading cf.pm"; 3743 warn "reloading cf.pm";
3681 require cf; 3744 require cf;
3682 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3745 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
3683 3746
3684 warn "loading config and database again"; 3747 warn "loading config and database again";
3685 cf::reload_config; 3748 cf::reload_config;
3686 3749
3687 warn "loading extensions"; 3750 warn "loading extensions";
3688 cf::load_extensions; 3751 cf::load_extensions;
3689 3752
3753 if ($REATTACH_ON_RELOAD) {
3690 warn "reattaching attachments to objects/players"; 3754 warn "reattaching attachments to objects/players";
3691 _global_reattach; # objects, sockets 3755 _global_reattach; # objects, sockets
3692 warn "reattaching attachments to maps"; 3756 warn "reattaching attachments to maps";
3693 reattach $_ for values %MAP; 3757 reattach $_ for values %MAP;
3694 warn "reattaching attachments to players"; 3758 warn "reattaching attachments to players";
3695 reattach $_ for values %PLAYER; 3759 reattach $_ for values %PLAYER;
3760 }
3696 3761
3762 warn "running post_init jobs";
3763 (pop @POST_INIT)->(1) while @POST_INIT;
3764
3697 warn "leaving sync_job"; 3765 warn "leaving sync_job";
3698 3766
3699 1 3767 1
3700 } or do { 3768 } or do {
3701 warn $@; 3769 warn $@;
3702 cf::cleanup "error while reloading, exiting."; 3770 cf::cleanup "error while reloading, exiting.";
3703 }; 3771 };
3704 3772
3705 warn "reloaded"; 3773 warn "reloaded";
3774 --$RELOAD;
3775 }
3776
3777 $t1 = EV::time - $t1;
3778 warn "reload completed in ${t1}s\n";
3706}; 3779};
3707 3780
3708our $RELOAD_WATCHER; # used only during reload 3781our $RELOAD_WATCHER; # used only during reload
3709 3782
3710sub reload_perl() { 3783sub reload_perl() {
3711 # doing reload synchronously and two reloads happen back-to-back, 3784 # doing reload synchronously and two reloads happen back-to-back,
3712 # coro crashes during coro_state_free->destroy here. 3785 # coro crashes during coro_state_free->destroy here.
3713 3786
3787 $RELOAD_WATCHER ||= cf::async {
3788 Coro::AIO::aio_wait cache_extensions;
3789
3714 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3790 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3715 do_reload_perl; 3791 do_reload_perl;
3716 undef $RELOAD_WATCHER; 3792 undef $RELOAD_WATCHER;
3793 };
3717 }; 3794 };
3718} 3795}
3719 3796
3720register_command "reload" => sub { 3797register_command "reload" => sub {
3721 my ($who, $arg) = @_; 3798 my ($who, $arg) = @_;
… …
3847 $msg =~ s/\n//; 3924 $msg =~ s/\n//;
3848 3925
3849 # limit the # of concurrent backtraces 3926 # limit the # of concurrent backtraces
3850 if ($_log_backtrace < 2) { 3927 if ($_log_backtrace < 2) {
3851 ++$_log_backtrace; 3928 ++$_log_backtrace;
3929 my $perl_bt = Carp::longmess $msg;
3852 async { 3930 async {
3853 $Coro::current->{desc} = "abt $msg"; 3931 $Coro::current->{desc} = "abt $msg";
3854 3932
3855 my @bt = fork_call { 3933 my @bt = fork_call {
3856 @addr = map { sprintf "%x", $_ } @addr; 3934 @addr = map { sprintf "%x", $_ } @addr;
… …
3867 } 3945 }
3868 3946
3869 @funcs 3947 @funcs
3870 }; 3948 };
3871 3949
3872 LOG llevInfo, "[ABT] $msg\n"; 3950 LOG llevInfo, "[ABT] $perl_bt\n";
3951 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3873 LOG llevInfo, "[ABT] $_\n" for @bt; 3952 LOG llevInfo, "[ABT] $_\n" for @bt;
3874 --$_log_backtrace; 3953 --$_log_backtrace;
3875 }; 3954 };
3876 } else { 3955 } else {
3877 LOG llevInfo, "[ABT] $msg\n"; 3956 LOG llevInfo, "[ABT] $msg\n";
3878 LOG llevInfo, "[ABT] [suppressed]\n"; 3957 LOG llevInfo, "[ABT] [suppressed]\n";
3879 } 3958 }
3880} 3959}
3881 3960
3882# load additional modules 3961# load additional modules
3883use cf::pod; 3962require "cf/$_.pm" for @EXTRA_MODULES;
3884 3963
3885END { cf::emergency_save } 3964END { cf::emergency_save }
3886 3965
38871 39661
3888 3967

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