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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 1.479 by root, Thu Oct 8 05:04:27 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;
93our @REFLECT; # set by XS
94our %REFLECT; # set by us
83 95
84our $CONFDIR = confdir; 96our $CONFDIR = confdir;
85our $DATADIR = datadir; 97our $DATADIR = datadir;
86our $LIBDIR = "$DATADIR/ext"; 98our $LIBDIR = "$DATADIR/ext";
87our $PODDIR = "$DATADIR/pod"; 99our $PODDIR = "$DATADIR/pod";
88our $MAPDIR = "$DATADIR/" . mapdir; 100our $MAPDIR = "$DATADIR/" . mapdir;
89our $LOCALDIR = localdir; 101our $LOCALDIR = localdir;
90our $TMPDIR = "$LOCALDIR/" . tmpdir; 102our $TMPDIR = "$LOCALDIR/" . tmpdir;
91our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 103our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
92our $PLAYERDIR = "$LOCALDIR/" . playerdir; 104our $PLAYERDIR = "$LOCALDIR/" . playerdir;
93our $RANDOMDIR = "$LOCALDIR/random"; 105our $RANDOMDIR = "$LOCALDIR/random";
94our $BDBDIR = "$LOCALDIR/db"; 106our $BDBDIR = "$LOCALDIR/db";
107our $PIDFILE = "$LOCALDIR/pid";
108our $RUNTIMEFILE = "$LOCALDIR/runtime";
109
95our %RESOURCE; 110our %RESOURCE;
96 111
97our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 112our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
98our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 113our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
99our $NEXT_TICK; 114our $NEXT_TICK;
100our $USE_FSYNC = 1; # use fsync to write maps - default off 115our $USE_FSYNC = 1; # use fsync to write maps - default on
101 116
102our $BDB_DEADLOCK_WATCHER; 117our $BDB_DEADLOCK_WATCHER;
103our $BDB_CHECKPOINT_WATCHER; 118our $BDB_CHECKPOINT_WATCHER;
104our $BDB_TRICKLE_WATCHER; 119our $BDB_TRICKLE_WATCHER;
105our $DB_ENV; 120our $DB_ENV;
106 121
122our @EXTRA_MODULES = qw(pod mapscript);
123
107our %CFG; 124our %CFG;
108 125
109our $UPTIME; $UPTIME ||= time; 126our $UPTIME; $UPTIME ||= time;
110our $RUNTIME; 127our $RUNTIME;
111our $NOW; 128our $NOW;
… …
120our $LOAD; # a number between 0 (idle) and 1 (too many objects) 137our $LOAD; # a number between 0 (idle) and 1 (too many objects)
121our $LOADAVG; # same thing, but with alpha-smoothing 138our $LOADAVG; # same thing, but with alpha-smoothing
122our $JITTER; # average jitter 139our $JITTER; # average jitter
123our $TICK_START; # for load detecting purposes 140our $TICK_START; # for load detecting purposes
124 141
142our @POST_INIT;
143
144our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
145our $REALLY_UNLOOP; # never set to true, please :)
146
125binmode STDOUT; 147binmode STDOUT;
126binmode STDERR; 148binmode STDERR;
127 149
128# read virtual server time, if available 150# read virtual server time, if available
129unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 151unless ($RUNTIME || !-e $RUNTIMEFILE) {
130 open my $fh, "<", "$LOCALDIR/runtime" 152 open my $fh, "<", $RUNTIMEFILE
131 or die "unable to read runtime file: $!"; 153 or die "unable to read $RUNTIMEFILE file: $!";
132 $RUNTIME = <$fh> + 0.; 154 $RUNTIME = <$fh> + 0.;
133} 155}
156
157eval "sub TICK() { $TICK } 1" or die;
134 158
135mkdir $_ 159mkdir $_
136 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 160 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
137 161
138our $EMERGENCY_POSITION; 162our $EMERGENCY_POSITION;
139 163
140sub cf::map::normalise; 164sub cf::map::normalise;
165
166#############################################################################
167
168%REFLECT = ();
169for (@REFLECT) {
170 my $reflect = JSON::XS::decode_json $_;
171 $REFLECT{$reflect->{class}} = $reflect;
172}
141 173
142############################################################################# 174#############################################################################
143 175
144=head2 GLOBAL VARIABLES 176=head2 GLOBAL VARIABLES
145 177
… …
196 228
197This array contains the results of the last C<invoke ()> call. When 229This array contains the results of the last C<invoke ()> call. When
198C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of 230C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
199that call. 231that call.
200 232
233=item %cf::REFLECT
234
235Contains, for each (C++) class name, a hash reference with information
236about object members (methods, scalars and arrays) and other metadata,
237which is useful for introspection.
238
201=back 239=back
202 240
203=cut 241=cut
204 242
205BEGIN { 243$Coro::State::WARNHOOK = sub {
206 *CORE::GLOBAL::warn = sub {
207 my $msg = join "", @_; 244 my $msg = join "", @_;
208 245
209 $msg .= "\n" 246 $msg .= "\n"
210 unless $msg =~ /\n$/; 247 unless $msg =~ /\n$/;
211 248
212 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge; 249 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
213 250
214 LOG llevError, $msg; 251 LOG llevError, $msg;
215 }; 252};
216}
217 253
218$Coro::State::DIEHOOK = sub { 254$Coro::State::DIEHOOK = sub {
219 return unless $^S eq 0; # "eq", not "==" 255 return unless $^S eq 0; # "eq", not "=="
256
257 warn Carp::longmess $_[0];
220 258
221 if ($Coro::current == $Coro::main) {#d# 259 if ($Coro::current == $Coro::main) {#d#
222 warn "DIEHOOK called in main context, Coro bug?\n";#d# 260 warn "DIEHOOK called in main context, Coro bug?\n";#d#
223 return;#d# 261 return;#d#
224 }#d# 262 }#d#
225 263
226 # kill coroutine otherwise 264 # kill coroutine otherwise
227 warn Carp::longmess $_[0];
228 Coro::terminate 265 Coro::terminate
229}; 266};
230
231$SIG{__DIE__} = sub { }; #d#?
232 267
233@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 268@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
234@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 269@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
235@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 270@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
236@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 271@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
… …
243for my $pkg (qw( 278for my $pkg (qw(
244 cf::global cf::attachable 279 cf::global cf::attachable
245 cf::object cf::object::player 280 cf::object cf::object::player
246 cf::client cf::player 281 cf::client cf::player
247 cf::arch cf::living 282 cf::arch cf::living
283 cf::map cf::mapspace
248 cf::map cf::party cf::region 284 cf::party cf::region
249)) { 285)) {
250 no strict 'refs';
251 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 286 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
252} 287}
253 288
254$EV::DIED = sub { 289$EV::DIED = sub {
255 warn "error in event callback: @_"; 290 warn "error in event callback: @_";
… …
297our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 332our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
298 333
299sub encode_json($) { $json_coder->encode ($_[0]) } 334sub encode_json($) { $json_coder->encode ($_[0]) }
300sub decode_json($) { $json_coder->decode ($_[0]) } 335sub decode_json($) { $json_coder->decode ($_[0]) }
301 336
337=item cf::post_init { BLOCK }
338
339Execute the given codeblock, I<after> all extensions have been (re-)loaded,
340but I<before> the server starts ticking again.
341
342The cdoeblock will have a single boolean argument to indicate whether this
343is a reload or not.
344
345=cut
346
347sub post_init(&) {
348 push @POST_INIT, shift;
349}
350
302=item cf::lock_wait $string 351=item cf::lock_wait $string
303 352
304Wait until the given lock is available. See cf::lock_acquire. 353Wait until the given lock is available. See cf::lock_acquire.
305 354
306=item my $lock = cf::lock_acquire $string 355=item my $lock = cf::lock_acquire $string
307 356
308Wait until the given lock is available and then acquires it and returns 357Wait 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, 358a L<Guard> object. If the guard object gets destroyed (goes out of scope,
310for example when the coroutine gets canceled), the lock is automatically 359for example when the coroutine gets canceled), the lock is automatically
311returned. 360returned.
312 361
313Locks are *not* recursive, locking from the same coro twice results in a 362Locks are *not* recursive, locking from the same coro twice results in a
314deadlocked coro. 363deadlocked coro.
… …
320 369
321Return true if the lock is currently active, i.e. somebody has locked it. 370Return true if the lock is currently active, i.e. somebody has locked it.
322 371
323=cut 372=cut
324 373
325our %LOCK; 374our $LOCKS = new Coro::SemaphoreSet;
326our %LOCKER;#d#
327 375
328sub lock_wait($) { 376sub lock_wait($) {
329 my ($key) = @_; 377 $LOCKS->wait ($_[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} }, $Coro::current;
339 Coro::schedule;
340 }
341} 378}
342 379
343sub lock_acquire($) { 380sub lock_acquire($) {
344 my ($key) = @_; 381 $LOCKS->guard ($_[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} 382}
358 383
359sub lock_active($) { 384sub lock_active($) {
360 my ($key) = @_; 385 $LOCKS->count ($_[0]) < 1
361
362 ! ! $LOCK{$key}
363} 386}
364 387
365sub freeze_mainloop { 388sub freeze_mainloop {
366 tick_inhibit_inc; 389 tick_inhibit_inc;
367 390
368 Coro::guard \&tick_inhibit_dec; 391 &Guard::guard (\&tick_inhibit_dec);
369} 392}
370 393
371=item cf::periodic $interval, $cb 394=item cf::periodic $interval, $cb
372 395
373Like EV::periodic, but randomly selects a starting point so that the actions 396Like EV::periodic, but randomly selects a starting point so that the actions
… …
725 748
726############################################################################# 749#############################################################################
727 750
728=head2 ATTACHABLE OBJECTS 751=head2 ATTACHABLE OBJECTS
729 752
730Many objects in crossfire are so-called attachable objects. That means you can 753Many objects in deliantra are so-called attachable objects. That means you can
731attach callbacks/event handlers (a collection of which is called an "attachment") 754attach callbacks/event handlers (a collection of which is called an "attachment")
732to it. All such attachable objects support the following methods. 755to it. All such attachable objects support the following methods.
733 756
734In the following description, CLASS can be any of C<global>, C<object> 757In 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 758C<player>, C<client> or C<map> (i.e. the attachable objects in
… …
785=item cf::CLASS::attachment $name, ... 808=item cf::CLASS::attachment $name, ...
786 809
787Register an attachment by C<$name> through which attachable objects of the 810Register an attachment by C<$name> through which attachable objects of the
788given CLASS can refer to this attachment. 811given CLASS can refer to this attachment.
789 812
790Some classes such as crossfire maps and objects can specify attachments 813Some classes such as deliantra maps and objects can specify attachments
791that are attached at load/instantiate time, thus the need for a name. 814that are attached at load/instantiate time, thus the need for a name.
792 815
793These calls expect any number of the following handler/hook descriptions: 816These calls expect any number of the following handler/hook descriptions:
794 817
795=over 4 818=over 4
… …
1086 1109
1087sub reattach { 1110sub reattach {
1088 # basically do the same as instantiate, without calling instantiate 1111 # basically do the same as instantiate, without calling instantiate
1089 my ($obj) = @_; 1112 my ($obj) = @_;
1090 1113
1114 # no longer needed after getting rid of delete_package?
1091 bless $obj, ref $obj; # re-bless in case extensions have been reloaded 1115 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1092 1116
1093 my $registry = $obj->registry; 1117 my $registry = $obj->registry;
1094 1118
1095 @$registry = (); 1119 @$registry = ();
1096 1120
… …
1144 $decname, length $$rdata, scalar @$objs; 1168 $decname, length $$rdata, scalar @$objs;
1145 1169
1146 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1170 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
1147 aio_chmod $fh, SAVE_MODE; 1171 aio_chmod $fh, SAVE_MODE;
1148 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1172 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
1149 aio_fsync $fh if $cf::USE_FSYNC; 1173 if ($cf::USE_FSYNC) {
1174 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;
1175 aio_fsync $fh;
1176 }
1150 aio_close $fh; 1177 aio_close $fh;
1151 1178
1152 if (@$objs) { 1179 if (@$objs) {
1153 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1180 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
1154 aio_chmod $fh, SAVE_MODE; 1181 aio_chmod $fh, SAVE_MODE;
1155 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs }; 1182 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
1156 aio_write $fh, 0, (length $data), $data, 0; 1183 aio_write $fh, 0, (length $data), $data, 0;
1157 aio_fsync $fh if $cf::USE_FSYNC; 1184 if ($cf::USE_FSYNC) {
1185 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;
1186 aio_fsync $fh;
1187 }
1158 aio_close $fh; 1188 aio_close $fh;
1159 aio_rename "$filename.pst~", "$filename.pst"; 1189 aio_rename "$filename.pst~", "$filename.pst";
1160 } 1190 }
1161 } else { 1191 } else {
1162 aio_unlink "$filename.pst"; 1192 aio_unlink "$filename.pst";
1163 } 1193 }
1164 1194
1165 aio_rename "$filename~", $filename; 1195 aio_rename "$filename~", $filename;
1196
1197 $filename =~ s%/[^/]+$%%;
1198 aio_pathsync $filename if $cf::USE_FSYNC;
1166 } else { 1199 } else {
1167 warn "FATAL: $filename~: $!\n"; 1200 warn "unable to save objects: $filename~: $!\n";
1168 } 1201 }
1169 } else { 1202 } else {
1170 aio_unlink $filename; 1203 aio_unlink $filename;
1171 aio_unlink "$filename.pst"; 1204 aio_unlink "$filename.pst";
1172 } 1205 }
… …
1263 my ($name, $cb) = @_; 1296 my ($name, $cb) = @_;
1264 1297
1265 $EXTICMD{$name} = $cb; 1298 $EXTICMD{$name} = $cb;
1266} 1299}
1267 1300
1301use File::Glob ();
1302
1268cf::player->attach ( 1303cf::player->attach (
1269 on_command => sub { 1304 on_command => sub {
1270 my ($pl, $name, $params) = @_; 1305 my ($pl, $name, $params) = @_;
1271 1306
1272 my $cb = $COMMAND{$name} 1307 my $cb = $COMMAND{$name}
… …
1304 1339
1305 cf::override; 1340 cf::override;
1306 }, 1341 },
1307); 1342);
1308 1343
1344# "readahead" all extensions
1345sub cache_extensions {
1346 my $grp = IO::AIO::aio_group;
1347
1348 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
1349 for (grep /\.ext$/, @{$_[0]}) {
1350 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1351 }
1352 };
1353
1354 $grp
1355}
1356
1309sub load_extensions { 1357sub load_extensions {
1310 cf::sync_job { 1358 cf::sync_job {
1311 my %todo; 1359 my %todo;
1312 1360
1313 for my $path (<$LIBDIR/*.ext>) { 1361 for my $path (<$LIBDIR/*.ext>) {
… …
1332 1380
1333 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 } 1381 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1334 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m; 1382 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1335 1383
1336 $ext{source} = 1384 $ext{source} =
1337 "package $pkg; use strict; use utf8;\n" 1385 "package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
1338 . "#line 1 \"$path\"\n{\n" 1386 . "#line 1 \"$path\"\n{\n"
1339 . $source 1387 . $source
1340 . "\n};\n1"; 1388 . "\n};\n1";
1341 1389
1342 $todo{$base} = \%ext; 1390 $todo{$base} = \%ext;
… …
1382 1430
1383=back 1431=back
1384 1432
1385=head2 CORE EXTENSIONS 1433=head2 CORE EXTENSIONS
1386 1434
1387Functions and methods that extend core crossfire objects. 1435Functions and methods that extend core deliantra objects.
1388 1436
1389=cut 1437=cut
1390 1438
1391package cf::player; 1439package cf::player;
1392 1440
… …
1435 1483
1436sub exists($) { 1484sub exists($) {
1437 my ($login) = @_; 1485 my ($login) = @_;
1438 1486
1439 $cf::PLAYER{$login} 1487 $cf::PLAYER{$login}
1440 or cf::sync_job { !aio_stat path $login } 1488 or !aio_stat path $login
1441} 1489}
1442 1490
1443sub find($) { 1491sub find($) {
1444 return $cf::PLAYER{$_[0]} || do { 1492 return $cf::PLAYER{$_[0]} || do {
1445 my $login = $_[0]; 1493 my $login = $_[0];
… …
1520 my ($pl) = @_; 1568 my ($pl) = @_;
1521 1569
1522 my $name = $pl->ob->name; 1570 my $name = $pl->ob->name;
1523 1571
1524 $pl->{deny_save} = 1; 1572 $pl->{deny_save} = 1;
1525 $pl->password ("*"); # this should lock out the player until we nuked the dir 1573 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1526 1574
1527 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1575 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1528 $pl->deactivate; 1576 $pl->deactivate;
1529 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy; 1577 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1530 $pl->ob->check_score; 1578 $pl->ob->check_score;
… …
1616 } 1664 }
1617 1665
1618 \@paths 1666 \@paths
1619} 1667}
1620 1668
1621=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1669=item $protocol_xml = $player->expand_cfpod ($cfpod)
1622 1670
1623Expand crossfire pod fragments into protocol xml. 1671Expand 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 1672
1714=item $player->ext_reply ($msgid, @msg) 1673=item $player->ext_reply ($msgid, @msg)
1715 1674
1716Sends an ext reply to the player. 1675Sends an ext reply to the player.
1717 1676
… …
1930 1889
1931 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go; 1890 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1932 "$UNIQUEDIR/$path" 1891 "$UNIQUEDIR/$path"
1933} 1892}
1934 1893
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 $_->outdoor, values %cf::MAP;
1942}
1943
1944sub decay_objects { 1894sub decay_objects {
1945 my ($self) = @_; 1895 my ($self) = @_;
1946 1896
1947 return if $self->{deny_reset}; 1897 return if $self->{deny_reset};
1948 1898
… …
2030sub find { 1980sub find {
2031 my ($path, $origin) = @_; 1981 my ($path, $origin) = @_;
2032 1982
2033 $path = normalise $path, $origin && $origin->path; 1983 $path = normalise $path, $origin && $origin->path;
2034 1984
2035 cf::lock_wait "map_data:$path";#d#remove 1985 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2036 cf::lock_wait "map_find:$path"; 1986 my $guard2 = cf::lock_acquire "map_find:$path";
2037 1987
2038 $cf::MAP{$path} || do { 1988 $cf::MAP{$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 1989 my $map = new_from_path cf::map $path
2043 or return; 1990 or return;
2044 1991
2045 $map->{last_save} = $cf::RUNTIME; 1992 $map->{last_save} = $cf::RUNTIME;
2046 1993
… …
2114 unless ($self->{deny_activate}) { 2061 unless ($self->{deny_activate}) {
2115 $self->decay_objects; 2062 $self->decay_objects;
2116 $self->fix_auto_apply; 2063 $self->fix_auto_apply;
2117 $self->update_buttons; 2064 $self->update_buttons;
2118 cf::cede_to_tick; 2065 cf::cede_to_tick;
2119 $self->set_darkness_map;
2120 cf::cede_to_tick;
2121 $self->activate; 2066 $self->activate;
2122 } 2067 }
2123 2068
2124 $self->{last_save} = $cf::RUNTIME; 2069 $self->{last_save} = $cf::RUNTIME;
2125 $self->last_access ($cf::RUNTIME); 2070 $self->last_access ($cf::RUNTIME);
… …
2291 2236
2292 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2237 my $lock = cf::lock_acquire "map_data:$self->{path}";
2293 2238
2294 return if $self->players; 2239 return if $self->players;
2295 2240
2296 warn "resetting map ", $self->path; 2241 warn "resetting map ", $self->path, "\n";
2297 2242
2298 $self->in_memory (cf::MAP_SWAPPED); 2243 $self->in_memory (cf::MAP_SWAPPED);
2299 2244
2300 # need to save uniques path 2245 # need to save uniques path
2301 unless ($self->{deny_save}) { 2246 unless ($self->{deny_save}) {
… …
2466 2411
2467our $SAY_CHANNEL = { 2412our $SAY_CHANNEL = {
2468 id => "say", 2413 id => "say",
2469 title => "Map", 2414 title => "Map",
2470 reply => "say ", 2415 reply => "say ",
2471 tooltip => "Things said to and replied from npcs near you and other players on the same map only.", 2416 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2472}; 2417};
2473 2418
2474our $CHAT_CHANNEL = { 2419our $CHAT_CHANNEL = {
2475 id => "chat", 2420 id => "chat",
2476 title => "Chat", 2421 title => "Chat",
… …
2531 2476
2532=item $player_object->enter_link 2477=item $player_object->enter_link
2533 2478
2534Freezes the player and moves him/her to a special map (C<{link}>). 2479Freezes the player and moves him/her to a special map (C<{link}>).
2535 2480
2536The player should be reasonably safe there for short amounts of time. You 2481The player should be reasonably safe there for short amounts of time (e.g.
2537I<MUST> call C<leave_link> as soon as possible, though. 2482for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2483though, as the palyer cannot control the character while it is on the link
2484map.
2538 2485
2539Will never block. 2486Will never block.
2540 2487
2541=item $player_object->leave_link ($map, $x, $y) 2488=item $player_object->leave_link ($map, $x, $y)
2542 2489
… …
2600 2547
2601 $map->load; 2548 $map->load;
2602 $map->load_neighbours; 2549 $map->load_neighbours;
2603 2550
2604 return unless $self->contr->active; 2551 return unless $self->contr->active;
2605 $self->activate_recursive;
2606 2552
2607 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2553 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2608 $self->enter_map ($map, $x, $y); 2554 $self->enter_map ($map, $x, $y);
2555
2556 # only activate afterwards, to support waiting in hooks
2557 $self->activate_recursive;
2609} 2558}
2610 2559
2611=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]]) 2560=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2612 2561
2613Moves the player to the given map-path and coordinates by first freezing 2562Moves the player to the given map-path and coordinates by first freezing
… …
2772 $self->contr->savebed ($map, $x, $y) 2721 $self->contr->savebed ($map, $x, $y)
2773 if $exit->flag (cf::FLAG_DAMNED); 2722 if $exit->flag (cf::FLAG_DAMNED);
2774 2723
2775 1 2724 1
2776 }) { 2725 }) {
2777 $self->message ("Something went wrong deep within the crossfire server. " 2726 $self->message ("Something went wrong deep within the deliantra server. "
2778 . "I'll try to bring you back to the map you were before. " 2727 . "I'll try to bring you back to the map you were before. "
2779 . "Please report this to the dungeon master!", 2728 . "Please report this to the dungeon master!",
2780 cf::NDI_UNIQUE | cf::NDI_RED); 2729 cf::NDI_UNIQUE | cf::NDI_RED);
2781 2730
2782 warn "ERROR in enter_exit: $@"; 2731 warn "ERROR in enter_exit: $@";
… …
2848 id => "infobox", 2797 id => "infobox",
2849 title => "Body Parts", 2798 title => "Body Parts",
2850 reply => undef, 2799 reply => undef,
2851 tooltip => "Shows which body parts you posess and are available", 2800 tooltip => "Shows which body parts you posess and are available",
2852 }, 2801 },
2802 "c/statistics" => {
2803 id => "infobox",
2804 title => "Statistics",
2805 reply => undef,
2806 tooltip => "Shows your primary statistics",
2807 },
2808 "c/skills" => {
2809 id => "infobox",
2810 title => "Skills",
2811 reply => undef,
2812 tooltip => "Shows your experience per skill and item power",
2813 },
2814 "c/shopitems" => {
2815 id => "infobox",
2816 title => "Shop Items",
2817 reply => undef,
2818 tooltip => "Shows the items currently for sale in this shop",
2819 },
2820 "c/resistances" => {
2821 id => "infobox",
2822 title => "Resistances",
2823 reply => undef,
2824 tooltip => "Shows your resistances",
2825 },
2826 "c/pets" => {
2827 id => "infobox",
2828 title => "Pets",
2829 reply => undef,
2830 tooltip => "Shows information abotu your pets/a specific pet",
2831 },
2832 "c/perceiveself" => {
2833 id => "infobox",
2834 title => "Perceive Self",
2835 reply => undef,
2836 tooltip => "You gained detailed knowledge about yourself",
2837 },
2853 "c/uptime" => { 2838 "c/uptime" => {
2854 id => "infobox", 2839 id => "infobox",
2855 title => "Uptime", 2840 title => "Uptime",
2856 reply => undef, 2841 reply => undef,
2857 tooltip => "How long the server has been running since last restart", 2842 tooltip => "How long the server has been running since last restart",
… …
2866 id => "party", 2851 id => "party",
2867 title => "Party", 2852 title => "Party",
2868 reply => "gsay ", 2853 reply => "gsay ",
2869 tooltip => "Messages and chat related to your party", 2854 tooltip => "Messages and chat related to your party",
2870 }, 2855 },
2856 "c/death" => {
2857 id => "death",
2858 title => "Death",
2859 reply => undef,
2860 tooltip => "Reason for and more info about your most recent death",
2861 },
2862 "c/say" => $SAY_CHANNEL,
2863 "c/chat" => $CHAT_CHANNEL,
2871); 2864);
2872 2865
2873sub cf::client::send_msg { 2866sub cf::client::send_msg {
2874 my ($self, $channel, $msg, $color, @extra) = @_; 2867 my ($self, $channel, $msg, $color, @extra) = @_;
2875 2868
2876 $msg = $self->pl->expand_cfpod ($msg); 2869 $msg = $self->pl->expand_cfpod ($msg)
2870 unless $color & cf::NDI_VERBATIM;
2877 2871
2878 $color &= cf::NDI_CLIENT_MASK; # just in case... 2872 $color &= cf::NDI_CLIENT_MASK; # just in case...
2879 2873
2880 # check predefined channels, for the benefit of C 2874 # check predefined channels, for the benefit of C
2881 if ($CHANNEL{$channel}) { 2875 if ($CHANNEL{$channel}) {
2882 $channel = $CHANNEL{$channel}; 2876 $channel = $CHANNEL{$channel};
2883 2877
2884 $self->ext_msg (channel_info => $channel) 2878 $self->ext_msg (channel_info => $channel);
2885 if $self->can_msg;
2886
2887 $channel = $channel->{id}; 2879 $channel = $channel->{id};
2888 2880
2889 } elsif (ref $channel) { 2881 } elsif (ref $channel) {
2890 # send meta info to client, if not yet sent 2882 # send meta info to client, if not yet sent
2891 unless (exists $self->{channel}{$channel->{id}}) { 2883 unless (exists $self->{channel}{$channel->{id}}) {
2892 $self->{channel}{$channel->{id}} = $channel; 2884 $self->{channel}{$channel->{id}} = $channel;
2893 $self->ext_msg (channel_info => $channel) 2885 $self->ext_msg (channel_info => $channel);
2894 if $self->can_msg;
2895 } 2886 }
2896 2887
2897 $channel = $channel->{id}; 2888 $channel = $channel->{id};
2898 } 2889 }
2899 2890
2900 return unless @extra || length $msg; 2891 return unless @extra || length $msg;
2901 2892
2902 if ($self->can_msg) {
2903 # default colour, mask it out 2893 # default colour, mask it out
2904 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF) 2894 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2905 if $color & cf::NDI_DEF; 2895 if $color & cf::NDI_DEF;
2906 2896
2907 $self->send_packet ("msg " . $self->{json_coder}->encode ( 2897 my $pkt = "msg "
2898 . $self->{json_coder}->encode (
2908 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra])); 2899 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2909 } else { 2900 );
2910 if ($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 2901
2921 $color &= cf::NDI_COLOR_MASK; 2902 # try lzf for large packets
2903 $pkt = "lzf " . Compress::LZF::compress $pkt
2904 if 1024 <= length $pkt and $self->{can_lzf};
2922 2905
2923 utf8::encode $msg; 2906 # split very large packets
2924 2907 if (8192 < length $pkt and $self->{can_lzf}) {
2925 if (0 && $msg =~ /\[/) { 2908 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2926 # COMMAND/INFO 2909 $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 } 2910 }
2911
2912 $self->send_packet ($pkt);
2934} 2913}
2935 2914
2936=item $client->ext_msg ($type, @msg) 2915=item $client->ext_msg ($type, @msg)
2937 2916
2938Sends an ext event to the client. 2917Sends an ext event to the client.
… …
3113The following functions and methods are available within a safe environment: 3092The following functions and methods are available within a safe environment:
3114 3093
3115 cf::object 3094 cf::object
3116 contr pay_amount pay_player map x y force_find force_add destroy 3095 contr pay_amount pay_player map x y force_find force_add destroy
3117 insert remove name archname title slaying race decrease split 3096 insert remove name archname title slaying race decrease split
3097 value
3118 3098
3119 cf::object::player 3099 cf::object::player
3120 player 3100 player
3121 3101
3122 cf::player 3102 cf::player
… …
3128=cut 3108=cut
3129 3109
3130for ( 3110for (
3131 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y 3111 ["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 3112 insert remove inv nrof name archname title slaying race
3133 decrease split destroy change_exp)], 3113 decrease split destroy change_exp value msg lore send_msg)],
3134 ["cf::object::player" => qw(player)], 3114 ["cf::object::player" => qw(player)],
3135 ["cf::player" => qw(peaceful)], 3115 ["cf::player" => qw(peaceful send_msg)],
3136 ["cf::map" => qw(trigger)], 3116 ["cf::map" => qw(trigger)],
3137) { 3117) {
3138 no strict 'refs'; 3118 no strict 'refs';
3139 my ($pkg, @funs) = @$_; 3119 my ($pkg, @funs) = @$_;
3140 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3120 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
… …
3157 my ($code, %vars) = @_; 3137 my ($code, %vars) = @_;
3158 3138
3159 my $qcode = $code; 3139 my $qcode = $code;
3160 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3140 $qcode =~ s/"/‟/g; # not allowed in #line filenames
3161 $qcode =~ s/\n/\\n/g; 3141 $qcode =~ s/\n/\\n/g;
3142
3143 %vars = (_dummy => 0) unless %vars;
3162 3144
3163 local $_; 3145 local $_;
3164 local @safe::cf::_safe_eval_args = values %vars; 3146 local @safe::cf::_safe_eval_args = values %vars;
3165 3147
3166 my $eval = 3148 my $eval =
… …
3396 reload_treasures; 3378 reload_treasures;
3397 3379
3398 warn "finished reloading resource files\n"; 3380 warn "finished reloading resource files\n";
3399} 3381}
3400 3382
3401sub init {
3402 my $guard = freeze_mainloop;
3403
3404 evthread_start IO::AIO::poll_fileno;
3405
3406 reload_resources;
3407}
3408
3409sub reload_config { 3383sub reload_config {
3410 open my $fh, "<:utf8", "$CONFDIR/config" 3384 open my $fh, "<:utf8", "$CONFDIR/config"
3411 or return; 3385 or return;
3412 3386
3413 local $/; 3387 local $/;
… …
3425 }; 3399 };
3426 warn $@ if $@; 3400 warn $@ if $@;
3427 } 3401 }
3428} 3402}
3429 3403
3404sub pidfile() {
3405 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3406 or die "$PIDFILE: $!";
3407 flock $fh, &Fcntl::LOCK_EX
3408 or die "$PIDFILE: flock: $!";
3409 $fh
3410}
3411
3412# make sure only one server instance is running at any one time
3413sub atomic {
3414 my $fh = pidfile;
3415
3416 my $pid = <$fh>;
3417 kill 9, $pid if $pid > 0;
3418
3419 seek $fh, 0, 0;
3420 print $fh $$;
3421}
3422
3423sub main_loop {
3424 warn "EV::loop starting\n";
3425 if (1) {
3426 EV::loop;
3427 }
3428 warn "EV::loop returned\n";
3429 goto &main_loop unless $REALLY_UNLOOP;
3430}
3431
3430sub main { 3432sub main {
3433 cf::init_globals; # initialise logging
3434
3435 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3436 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3437 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3438 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3439
3440 cf::init_experience;
3441 cf::init_anim;
3442 cf::init_attackmess;
3443 cf::init_dynamic;
3444
3445 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3446
3431 # we must not ever block the main coroutine 3447 # we must not ever block the main coroutine
3432 local $Coro::idle = sub { 3448 local $Coro::idle = sub {
3433 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3449 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3434 (async { 3450 (async {
3435 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3451 $Coro::current->{desc} = "IDLE BUG HANDLER";
3436 EV::loop EV::LOOP_ONESHOT; 3452 EV::loop EV::LOOP_ONESHOT;
3437 })->prio (Coro::PRIO_MAX); 3453 })->prio (Coro::PRIO_MAX);
3438 }; 3454 };
3439 3455
3440 { 3456 evthread_start IO::AIO::poll_fileno;
3441 my $guard = freeze_mainloop; 3457
3458 cf::sync_job {
3459 reload_resources;
3442 reload_config; 3460 reload_config;
3443 db_init; 3461 db_init;
3462
3463 cf::load_settings;
3464 cf::load_materials;
3465 cf::init_uuid;
3466 cf::init_signals;
3467 cf::init_commands;
3468 cf::init_skills;
3469
3470 cf::init_beforeplay;
3471
3472 atomic;
3473
3444 load_extensions; 3474 load_extensions;
3445 3475
3446 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3476 utime time, time, $RUNTIMEFILE;
3477
3478 # no (long-running) fork's whatsoever before this point(!)
3479 use POSIX ();
3480 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3481
3482 (pop @POST_INIT)->(0) while @POST_INIT;
3447 } 3483 };
3448 3484
3449 EV::loop; 3485 main_loop;
3450} 3486}
3451 3487
3452############################################################################# 3488#############################################################################
3453# initialisation and cleanup 3489# initialisation and cleanup
3454 3490
… …
3461 }; 3497 };
3462 } 3498 }
3463} 3499}
3464 3500
3465sub write_runtime_sync { 3501sub write_runtime_sync {
3466 my $runtime = "$LOCALDIR/runtime";
3467
3468 # first touch the runtime file to show we are still running: 3502 # first touch the runtime file to show we are still running:
3469 # the fsync below can take a very very long time. 3503 # the fsync below can take a very very long time.
3470 3504
3471 IO::AIO::aio_utime $runtime, undef, undef; 3505 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3472 3506
3473 my $guard = cf::lock_acquire "write_runtime"; 3507 my $guard = cf::lock_acquire "write_runtime";
3474 3508
3475 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3509 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3476 or return; 3510 or return;
3477 3511
3478 my $value = $cf::RUNTIME + 90 + 10; 3512 my $value = $cf::RUNTIME + 90 + 10;
3479 # 10 is the runtime save interval, for a monotonic clock 3513 # 10 is the runtime save interval, for a monotonic clock
3480 # 60 allows for the watchdog to kill the server. 3514 # 60 allows for the watchdog to kill the server.
… …
3490 aio_utime $fh, undef, undef; 3524 aio_utime $fh, undef, undef;
3491 3525
3492 close $fh 3526 close $fh
3493 or return; 3527 or return;
3494 3528
3495 aio_rename "$runtime~", $runtime 3529 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3496 and return; 3530 and return;
3497 3531
3498 warn "runtime file written.\n"; 3532 warn "runtime file written.\n";
3499 3533
3500 1 3534 1
… …
3512 my $uuid = "$LOCALDIR/uuid"; 3546 my $uuid = "$LOCALDIR/uuid";
3513 3547
3514 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3548 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3515 or return; 3549 or return;
3516 3550
3517 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3551 my $value = uuid_seq uuid_cur;
3552
3553 unless ($value) {
3554 warn "cowardly refusing to write zero uuid value!\n";
3555 return;
3556 }
3557
3558 my $value = uuid_str $value + $uuid_skip;
3518 $uuid_skip = 0; 3559 $uuid_skip = 0;
3519 3560
3520 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3561 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3521 and return; 3562 and return;
3522 3563
… …
3544} 3585}
3545 3586
3546sub emergency_save() { 3587sub emergency_save() {
3547 my $freeze_guard = cf::freeze_mainloop; 3588 my $freeze_guard = cf::freeze_mainloop;
3548 3589
3549 warn "enter emergency perl save\n"; 3590 warn "emergency_perl_save: enter\n";
3550 3591
3551 cf::sync_job { 3592 cf::sync_job {
3593 # this is a trade-off: we want to be very quick here, so
3594 # save all maps without fsync, and later call a global sync
3595 # (which in turn might be very very slow)
3596 local $USE_FSYNC = 0;
3597
3552 # use a peculiar iteration method to avoid tripping on perl 3598 # use a peculiar iteration method to avoid tripping on perl
3553 # refcount bugs in for. also avoids problems with players 3599 # refcount bugs in for. also avoids problems with players
3554 # and maps saved/destroyed asynchronously. 3600 # and maps saved/destroyed asynchronously.
3555 warn "begin emergency player save\n"; 3601 warn "emergency_perl_save: begin player save\n";
3556 for my $login (keys %cf::PLAYER) { 3602 for my $login (keys %cf::PLAYER) {
3557 my $pl = $cf::PLAYER{$login} or next; 3603 my $pl = $cf::PLAYER{$login} or next;
3558 $pl->valid or next; 3604 $pl->valid or next;
3559 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3605 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3560 $pl->save; 3606 $pl->save;
3561 } 3607 }
3562 warn "end emergency player save\n"; 3608 warn "emergency_perl_save: end player save\n";
3563 3609
3564 warn "begin emergency map save\n"; 3610 warn "emergency_perl_save: begin map save\n";
3565 for my $path (keys %cf::MAP) { 3611 for my $path (keys %cf::MAP) {
3566 my $map = $cf::MAP{$path} or next; 3612 my $map = $cf::MAP{$path} or next;
3567 $map->valid or next; 3613 $map->valid or next;
3568 $map->save; 3614 $map->save;
3569 } 3615 }
3570 warn "end emergency map save\n"; 3616 warn "emergency_perl_save: end map save\n";
3571 3617
3572 warn "begin emergency database checkpoint\n"; 3618 warn "emergency_perl_save: begin database checkpoint\n";
3573 BDB::db_env_txn_checkpoint $DB_ENV; 3619 BDB::db_env_txn_checkpoint $DB_ENV;
3574 warn "end emergency database checkpoint\n"; 3620 warn "emergency_perl_save: end database checkpoint\n";
3575 3621
3576 warn "begin write uuid\n"; 3622 warn "emergency_perl_save: begin write uuid\n";
3577 write_uuid_sync 1; 3623 write_uuid_sync 1;
3578 warn "end write uuid\n"; 3624 warn "emergency_perl_save: end write uuid\n";
3579 }; 3625 };
3580 3626
3627 warn "emergency_perl_save: starting sync()\n";
3628 IO::AIO::aio_sync sub {
3629 warn "emergency_perl_save: finished sync()\n";
3630 };
3631
3581 warn "leave emergency perl save\n"; 3632 warn "emergency_perl_save: leave\n";
3582} 3633}
3583 3634
3584sub post_cleanup { 3635sub post_cleanup {
3585 my ($make_core) = @_; 3636 my ($make_core) = @_;
3586 3637
3587 warn Carp::longmess "post_cleanup backtrace" 3638 warn Carp::longmess "post_cleanup backtrace"
3588 if $make_core; 3639 if $make_core;
3640
3641 my $fh = pidfile;
3642 unlink $PIDFILE if <$fh> == $$;
3643}
3644
3645# a safer delete_package, copied from Symbol
3646sub clear_package($) {
3647 my $pkg = shift;
3648
3649 # expand to full symbol table name if needed
3650 unless ($pkg =~ /^main::.*::$/) {
3651 $pkg = "main$pkg" if $pkg =~ /^::/;
3652 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3653 $pkg .= '::' unless $pkg =~ /::$/;
3654 }
3655
3656 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3657 my $stem_symtab = *{$stem}{HASH};
3658
3659 defined $stem_symtab and exists $stem_symtab->{$leaf}
3660 or return;
3661
3662 # clear all symbols
3663 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3664 for my $name (keys %$leaf_symtab) {
3665 _gv_clear *{"$pkg$name"};
3666# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3667 }
3668 warn "cleared package $pkg\n";#d#
3589} 3669}
3590 3670
3591sub do_reload_perl() { 3671sub do_reload_perl() {
3592 # can/must only be called in main 3672 # can/must only be called in main
3593 if ($Coro::current != $Coro::main) { 3673 if ($Coro::current != $Coro::main) {
3594 warn "can only reload from main coroutine"; 3674 warn "can only reload from main coroutine";
3595 return; 3675 return;
3596 } 3676 }
3597 3677
3678 return if $RELOAD++;
3679
3680 my $t1 = EV::time;
3681
3682 while ($RELOAD) {
3598 warn "reloading..."; 3683 warn "reloading...";
3599 3684
3600 warn "entering sync_job"; 3685 warn "entering sync_job";
3601 3686
3602 cf::sync_job { 3687 cf::sync_job {
3603 cf::write_runtime_sync; # external watchdog should not bark 3688 cf::write_runtime_sync; # external watchdog should not bark
3604 cf::emergency_save; 3689 cf::emergency_save;
3605 cf::write_runtime_sync; # external watchdog should not bark 3690 cf::write_runtime_sync; # external watchdog should not bark
3606 3691
3607 warn "syncing database to disk"; 3692 warn "syncing database to disk";
3608 BDB::db_env_txn_checkpoint $DB_ENV; 3693 BDB::db_env_txn_checkpoint $DB_ENV;
3609 3694
3610 # if anything goes wrong in here, we should simply crash as we already saved 3695 # if anything goes wrong in here, we should simply crash as we already saved
3611 3696
3612 warn "flushing outstanding aio requests"; 3697 warn "flushing outstanding aio requests";
3613 for (;;) {
3614 BDB::flush;
3615 IO::AIO::flush;
3616 Coro::cede_notself;
3617 last unless IO::AIO::nreqs || BDB::nreqs; 3698 while (IO::AIO::nreqs || BDB::nreqs) {
3618 warn "iterate..."; 3699 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3619 }
3620
3621 ++$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 } 3700 }
3644 3701
3645 warn "... nuking $pkg"; 3702 warn "cancelling all extension coros";
3646 Symbol::delete_package $pkg; 3703 $_->cancel for values %EXT_CORO;
3647 } 3704 %EXT_CORO = ();
3648 3705
3649 warn "unloading all perl modules loaded from $LIBDIR"; 3706 warn "removing commands";
3650 while (my ($k, $v) = each %INC) { 3707 %COMMAND = ();
3651 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3652 3708
3709 warn "removing ext/exti commands";
3710 %EXTCMD = ();
3711 %EXTICMD = ();
3712
3713 warn "unloading/nuking all extensions";
3714 for my $pkg (@EXTS) {
3653 warn "... unloading $k"; 3715 warn "... unloading $pkg";
3654 delete $INC{$k};
3655 3716
3656 $k =~ s/\.pm$//;
3657 $k =~ s/\//::/g;
3658
3659 if (my $cb = $k->can ("unload_module")) { 3717 if (my $cb = $pkg->can ("unload")) {
3718 eval {
3660 $cb->(); 3719 $cb->($pkg);
3720 1
3721 } or warn "$pkg unloaded, but with errors: $@";
3722 }
3723
3724 warn "... clearing $pkg";
3725 clear_package $pkg;
3661 } 3726 }
3662 3727
3663 Symbol::delete_package $k; 3728 warn "unloading all perl modules loaded from $LIBDIR";
3729 while (my ($k, $v) = each %INC) {
3730 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3731
3732 warn "... unloading $k";
3733 delete $INC{$k};
3734
3735 $k =~ s/\.pm$//;
3736 $k =~ s/\//::/g;
3737
3738 if (my $cb = $k->can ("unload_module")) {
3739 $cb->();
3740 }
3741
3742 clear_package $k;
3664 } 3743 }
3665 3744
3666 warn "getting rid of safe::, as good as possible"; 3745 warn "getting rid of safe::, as good as possible";
3667 Symbol::delete_package "safe::$_" 3746 clear_package "safe::$_"
3668 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3747 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3669 3748
3670 warn "unloading cf.pm \"a bit\""; 3749 warn "unloading cf.pm \"a bit\"";
3671 delete $INC{"cf.pm"}; 3750 delete $INC{"cf.pm"};
3672 delete $INC{"cf/pod.pm"}; 3751 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3673 3752
3674 # don't, removes xs symbols, too, 3753 # don't, removes xs symbols, too,
3675 # and global variables created in xs 3754 # and global variables created in xs
3676 #Symbol::delete_package __PACKAGE__; 3755 #clear_package __PACKAGE__;
3677 3756
3678 warn "unload completed, starting to reload now"; 3757 warn "unload completed, starting to reload now";
3679 3758
3680 warn "reloading cf.pm"; 3759 warn "reloading cf.pm";
3681 require cf; 3760 require cf;
3682 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3761 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
3683 3762
3684 warn "loading config and database again"; 3763 warn "loading config and database again";
3685 cf::reload_config; 3764 cf::reload_config;
3686 3765
3687 warn "loading extensions"; 3766 warn "loading extensions";
3688 cf::load_extensions; 3767 cf::load_extensions;
3689 3768
3769 if ($REATTACH_ON_RELOAD) {
3690 warn "reattaching attachments to objects/players"; 3770 warn "reattaching attachments to objects/players";
3691 _global_reattach; # objects, sockets 3771 _global_reattach; # objects, sockets
3692 warn "reattaching attachments to maps"; 3772 warn "reattaching attachments to maps";
3693 reattach $_ for values %MAP; 3773 reattach $_ for values %MAP;
3694 warn "reattaching attachments to players"; 3774 warn "reattaching attachments to players";
3695 reattach $_ for values %PLAYER; 3775 reattach $_ for values %PLAYER;
3776 }
3696 3777
3778 warn "running post_init jobs";
3779 (pop @POST_INIT)->(1) while @POST_INIT;
3780
3697 warn "leaving sync_job"; 3781 warn "leaving sync_job";
3698 3782
3699 1 3783 1
3700 } or do { 3784 } or do {
3701 warn $@; 3785 warn $@;
3702 cf::cleanup "error while reloading, exiting."; 3786 cf::cleanup "error while reloading, exiting.";
3703 }; 3787 };
3704 3788
3705 warn "reloaded"; 3789 warn "reloaded";
3790 --$RELOAD;
3791 }
3792
3793 $t1 = EV::time - $t1;
3794 warn "reload completed in ${t1}s\n";
3706}; 3795};
3707 3796
3708our $RELOAD_WATCHER; # used only during reload 3797our $RELOAD_WATCHER; # used only during reload
3709 3798
3710sub reload_perl() { 3799sub reload_perl() {
3711 # doing reload synchronously and two reloads happen back-to-back, 3800 # doing reload synchronously and two reloads happen back-to-back,
3712 # coro crashes during coro_state_free->destroy here. 3801 # coro crashes during coro_state_free->destroy here.
3713 3802
3803 $RELOAD_WATCHER ||= cf::async {
3804 Coro::AIO::aio_wait cache_extensions;
3805
3714 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3806 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3715 do_reload_perl; 3807 do_reload_perl;
3716 undef $RELOAD_WATCHER; 3808 undef $RELOAD_WATCHER;
3809 };
3717 }; 3810 };
3718} 3811}
3719 3812
3720register_command "reload" => sub { 3813register_command "reload" => sub {
3721 my ($who, $arg) = @_; 3814 my ($who, $arg) = @_;
… …
3847 $msg =~ s/\n//; 3940 $msg =~ s/\n//;
3848 3941
3849 # limit the # of concurrent backtraces 3942 # limit the # of concurrent backtraces
3850 if ($_log_backtrace < 2) { 3943 if ($_log_backtrace < 2) {
3851 ++$_log_backtrace; 3944 ++$_log_backtrace;
3945 my $perl_bt = Carp::longmess $msg;
3852 async { 3946 async {
3853 $Coro::current->{desc} = "abt $msg"; 3947 $Coro::current->{desc} = "abt $msg";
3854 3948
3855 my @bt = fork_call { 3949 my @bt = fork_call {
3856 @addr = map { sprintf "%x", $_ } @addr; 3950 @addr = map { sprintf "%x", $_ } @addr;
… …
3867 } 3961 }
3868 3962
3869 @funcs 3963 @funcs
3870 }; 3964 };
3871 3965
3872 LOG llevInfo, "[ABT] $msg\n"; 3966 LOG llevInfo, "[ABT] $perl_bt\n";
3967 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3873 LOG llevInfo, "[ABT] $_\n" for @bt; 3968 LOG llevInfo, "[ABT] $_\n" for @bt;
3874 --$_log_backtrace; 3969 --$_log_backtrace;
3875 }; 3970 };
3876 } else { 3971 } else {
3877 LOG llevInfo, "[ABT] $msg\n"; 3972 LOG llevInfo, "[ABT] $msg\n";
3878 LOG llevInfo, "[ABT] [suppressed]\n"; 3973 LOG llevInfo, "[ABT] [suppressed]\n";
3879 } 3974 }
3880} 3975}
3881 3976
3882# load additional modules 3977# load additional modules
3883use cf::pod; 3978require "cf/$_.pm" for @EXTRA_MODULES;
3884 3979
3885END { cf::emergency_save } 3980END { cf::emergency_save }
3886 3981
38871 39821
3888 3983

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