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1 | # |
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2 | # This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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3 | # |
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4 | # Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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5 | # |
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6 | # Deliantra is free software: you can redistribute it and/or modify |
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7 | # it under the terms of the GNU General Public License as published by |
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8 | # the Free Software Foundation, either version 3 of the License, or |
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9 | # (at your option) any later version. |
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10 | # |
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11 | # This program is distributed in the hope that it will be useful, |
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12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | # GNU General Public License for more details. |
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15 | # |
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16 | # You should have received a copy of the GNU General Public License |
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17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 | # |
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19 | # The authors can be reached via e-mail to <support@deliantra.net> |
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20 | # |
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21 | |
1 | package cf; |
22 | package cf; |
2 | |
23 | |
3 | use utf8; |
24 | use utf8; |
4 | use strict; |
25 | use strict; |
5 | |
26 | |
… | |
… | |
27 | use JSON::XS 2.01 (); |
48 | use JSON::XS 2.01 (); |
28 | use BDB (); |
49 | use BDB (); |
29 | use Data::Dumper; |
50 | use Data::Dumper; |
30 | use Digest::MD5; |
51 | use Digest::MD5; |
31 | use Fcntl; |
52 | use Fcntl; |
32 | use YAML::Syck (); |
53 | use YAML (); |
33 | use IO::AIO 2.51 (); |
54 | use IO::AIO 2.51 (); |
34 | use Time::HiRes; |
55 | use Time::HiRes; |
35 | use Compress::LZF; |
56 | use Compress::LZF; |
36 | use Digest::MD5 (); |
57 | use Digest::MD5 (); |
37 | |
58 | |
38 | # configure various modules to our taste |
59 | # configure various modules to our taste |
39 | # |
60 | # |
40 | $Storable::canonical = 1; # reduce rsync transfers |
61 | $Storable::canonical = 1; # reduce rsync transfers |
41 | Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator |
62 | Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator |
42 | Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later |
63 | Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later |
43 | |
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44 | # work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
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45 | $YAML::Syck::ImplicitUnicode = 1; |
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46 | |
64 | |
47 | $Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority |
65 | $Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority |
48 | |
66 | |
49 | sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
67 | sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
50 | |
68 | |
… | |
… | |
72 | our $RANDOMDIR = "$LOCALDIR/random"; |
90 | our $RANDOMDIR = "$LOCALDIR/random"; |
73 | our $BDBDIR = "$LOCALDIR/db"; |
91 | our $BDBDIR = "$LOCALDIR/db"; |
74 | our %RESOURCE; |
92 | our %RESOURCE; |
75 | |
93 | |
76 | our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) |
94 | our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) |
77 | our $TICK_WATCHER; |
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78 | our $AIO_POLL_WATCHER; |
95 | our $AIO_POLL_WATCHER; |
79 | our $NEXT_RUNTIME_WRITE; # when should the runtime file be written |
96 | our $NEXT_RUNTIME_WRITE; # when should the runtime file be written |
80 | our $NEXT_TICK; |
97 | our $NEXT_TICK; |
81 | our $USE_FSYNC = 1; # use fsync to write maps - default off |
98 | our $USE_FSYNC = 1; # use fsync to write maps - default off |
82 | |
99 | |
… | |
… | |
99 | # used to convert map paths into valid unix filenames by replacing / by ∕ |
116 | # used to convert map paths into valid unix filenames by replacing / by ∕ |
100 | our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons |
117 | our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons |
101 | |
118 | |
102 | our $LOAD; # a number between 0 (idle) and 1 (too many objects) |
119 | our $LOAD; # a number between 0 (idle) and 1 (too many objects) |
103 | our $LOADAVG; # same thing, but with alpha-smoothing |
120 | our $LOADAVG; # same thing, but with alpha-smoothing |
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121 | our $JITTER; # average jitter |
104 | our $tick_start; # for load detecting purposes |
122 | our $TICK_START; # for load detecting purposes |
105 | |
123 | |
106 | binmode STDOUT; |
124 | binmode STDOUT; |
107 | binmode STDERR; |
125 | binmode STDERR; |
108 | |
126 | |
109 | # read virtual server time, if available |
127 | # read virtual server time, if available |
… | |
… | |
195 | LOG llevError, $msg; |
213 | LOG llevError, $msg; |
196 | }; |
214 | }; |
197 | } |
215 | } |
198 | |
216 | |
199 | $Coro::State::DIEHOOK = sub { |
217 | $Coro::State::DIEHOOK = sub { |
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218 | return unless $^S eq 0; # "eq", not "==" |
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219 | |
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220 | if ($Coro::current == $Coro::main) {#d# |
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221 | warn "DIEHOOK called in main context, Coro bug?\n";#d# |
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222 | return;#d# |
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223 | }#d# |
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224 | |
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225 | # kill coroutine otherwise |
200 | warn Carp::longmess $_[0]; |
226 | warn Carp::longmess $_[0]; |
201 | Coro::terminate; |
227 | Coro::terminate |
202 | }; |
228 | }; |
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229 | |
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230 | $SIG{__DIE__} = sub { }; #d#? |
203 | |
231 | |
204 | @safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
232 | @safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
205 | @safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
233 | @safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
206 | @safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
234 | @safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
207 | @safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
235 | @safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
… | |
… | |
332 | |
360 | |
333 | ! ! $LOCK{$key} |
361 | ! ! $LOCK{$key} |
334 | } |
362 | } |
335 | |
363 | |
336 | sub freeze_mainloop { |
364 | sub freeze_mainloop { |
337 | return unless $TICK_WATCHER->is_active; |
365 | tick_inhibit_inc; |
338 | |
366 | |
339 | my $guard = Coro::guard { |
367 | Coro::guard \&tick_inhibit_dec; |
340 | $TICK_WATCHER->start; |
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341 | }; |
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342 | $TICK_WATCHER->stop; |
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343 | $guard |
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344 | } |
368 | } |
345 | |
369 | |
346 | =item cf::periodic $interval, $cb |
370 | =item cf::periodic $interval, $cb |
347 | |
371 | |
348 | Like EV::periodic, but randomly selects a starting point so that the actions |
372 | Like EV::periodic, but randomly selects a starting point so that the actions |
… | |
… | |
449 | # this is the main coro, too bad, we have to block |
473 | # this is the main coro, too bad, we have to block |
450 | # till the operation succeeds, freezing the server :/ |
474 | # till the operation succeeds, freezing the server :/ |
451 | |
475 | |
452 | LOG llevError, Carp::longmess "sync job";#d# |
476 | LOG llevError, Carp::longmess "sync job";#d# |
453 | |
477 | |
454 | # TODO: use suspend/resume instead |
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455 | # (but this is cancel-safe) |
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456 | my $freeze_guard = freeze_mainloop; |
478 | my $freeze_guard = freeze_mainloop; |
457 | |
479 | |
458 | my $busy = 1; |
480 | my $busy = 1; |
459 | my @res; |
481 | my @res; |
460 | |
482 | |
… | |
… | |
471 | } else { |
493 | } else { |
472 | EV::loop EV::LOOP_ONESHOT; |
494 | EV::loop EV::LOOP_ONESHOT; |
473 | } |
495 | } |
474 | } |
496 | } |
475 | |
497 | |
476 | $time = EV::time - $time; |
498 | my $time = EV::time - $time; |
477 | |
499 | |
478 | LOG llevError | logBacktrace, Carp::longmess "long sync job" |
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479 | if $time > $TICK * 0.5 && $TICK_WATCHER->is_active; |
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480 | |
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481 | $tick_start += $time; # do not account sync jobs to server load |
500 | $TICK_START += $time; # do not account sync jobs to server load |
482 | |
501 | |
483 | wantarray ? @res : $res[0] |
502 | wantarray ? @res : $res[0] |
484 | } else { |
503 | } else { |
485 | # we are in another coroutine, how wonderful, everything just works |
504 | # we are in another coroutine, how wonderful, everything just works |
486 | |
505 | |
… | |
… | |
1309 | my $msg = $@ ? "$v->{path}: $@\n" |
1328 | my $msg = $@ ? "$v->{path}: $@\n" |
1310 | : "$v->{base}: extension inactive.\n"; |
1329 | : "$v->{base}: extension inactive.\n"; |
1311 | |
1330 | |
1312 | if (exists $v->{meta}{mandatory}) { |
1331 | if (exists $v->{meta}{mandatory}) { |
1313 | warn $msg; |
1332 | warn $msg; |
1314 | warn "mandatory extension failed to load, exiting.\n"; |
1333 | cf::cleanup "mandatory extension failed to load, exiting."; |
1315 | exit 1; |
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1316 | } |
1334 | } |
1317 | |
1335 | |
1318 | warn $msg; |
1336 | warn $msg; |
1319 | } |
1337 | } |
1320 | |
1338 | |
… | |
… | |
3313 | sub reload_config { |
3331 | sub reload_config { |
3314 | open my $fh, "<:utf8", "$CONFDIR/config" |
3332 | open my $fh, "<:utf8", "$CONFDIR/config" |
3315 | or return; |
3333 | or return; |
3316 | |
3334 | |
3317 | local $/; |
3335 | local $/; |
3318 | *CFG = YAML::Syck::Load <$fh>; |
3336 | *CFG = YAML::Load <$fh>; |
3319 | |
3337 | |
3320 | $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; |
3338 | $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; |
3321 | |
3339 | |
3322 | $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; |
3340 | $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; |
3323 | $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; |
3341 | $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; |
… | |
… | |
3343 | |
3361 | |
3344 | reload_config; |
3362 | reload_config; |
3345 | db_init; |
3363 | db_init; |
3346 | load_extensions; |
3364 | load_extensions; |
3347 | |
3365 | |
3348 | $TICK_WATCHER->start; |
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3349 | $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority |
3366 | $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority |
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3367 | evthread_start; |
3350 | EV::loop; |
3368 | EV::loop; |
3351 | } |
3369 | } |
3352 | |
3370 | |
3353 | ############################################################################# |
3371 | ############################################################################# |
3354 | # initialisation and cleanup |
3372 | # initialisation and cleanup |
… | |
… | |
3551 | warn "leaving sync_job"; |
3569 | warn "leaving sync_job"; |
3552 | |
3570 | |
3553 | 1 |
3571 | 1 |
3554 | } or do { |
3572 | } or do { |
3555 | warn $@; |
3573 | warn $@; |
3556 | warn "error while reloading, exiting."; |
3574 | cf::cleanup "error while reloading, exiting."; |
3557 | exit 1; |
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3558 | }; |
3575 | }; |
3559 | |
3576 | |
3560 | warn "reloaded"; |
3577 | warn "reloaded"; |
3561 | }; |
3578 | }; |
3562 | |
3579 | |
… | |
… | |
3565 | sub reload_perl() { |
3582 | sub reload_perl() { |
3566 | # doing reload synchronously and two reloads happen back-to-back, |
3583 | # doing reload synchronously and two reloads happen back-to-back, |
3567 | # coro crashes during coro_state_free->destroy here. |
3584 | # coro crashes during coro_state_free->destroy here. |
3568 | |
3585 | |
3569 | $RELOAD_WATCHER ||= EV::timer 0, 0, sub { |
3586 | $RELOAD_WATCHER ||= EV::timer 0, 0, sub { |
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3587 | do_reload_perl; |
3570 | undef $RELOAD_WATCHER; |
3588 | undef $RELOAD_WATCHER; |
3571 | do_reload_perl; |
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3572 | }; |
3589 | }; |
3573 | } |
3590 | } |
3574 | |
3591 | |
3575 | register_command "reload" => sub { |
3592 | register_command "reload" => sub { |
3576 | my ($who, $arg) = @_; |
3593 | my ($who, $arg) = @_; |
… | |
… | |
3590 | |
3607 | |
3591 | our @WAIT_FOR_TICK; |
3608 | our @WAIT_FOR_TICK; |
3592 | our @WAIT_FOR_TICK_BEGIN; |
3609 | our @WAIT_FOR_TICK_BEGIN; |
3593 | |
3610 | |
3594 | sub wait_for_tick { |
3611 | sub wait_for_tick { |
3595 | return unless $TICK_WATCHER->is_active; |
3612 | return if tick_inhibit; |
3596 | return if $Coro::current == $Coro::main; |
3613 | return if $Coro::current == $Coro::main; |
3597 | |
3614 | |
3598 | my $signal = new Coro::Signal; |
3615 | my $signal = new Coro::Signal; |
3599 | push @WAIT_FOR_TICK, $signal; |
3616 | push @WAIT_FOR_TICK, $signal; |
3600 | $signal->wait; |
3617 | $signal->wait; |
3601 | } |
3618 | } |
3602 | |
3619 | |
3603 | sub wait_for_tick_begin { |
3620 | sub wait_for_tick_begin { |
3604 | return unless $TICK_WATCHER->is_active; |
3621 | return if tick_inhibit; |
3605 | return if $Coro::current == $Coro::main; |
3622 | return if $Coro::current == $Coro::main; |
3606 | |
3623 | |
3607 | my $signal = new Coro::Signal; |
3624 | my $signal = new Coro::Signal; |
3608 | push @WAIT_FOR_TICK_BEGIN, $signal; |
3625 | push @WAIT_FOR_TICK_BEGIN, $signal; |
3609 | $signal->wait; |
3626 | $signal->wait; |
3610 | } |
3627 | } |
3611 | |
3628 | |
3612 | $TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub { |
3629 | sub tick { |
3613 | if ($Coro::current != $Coro::main) { |
3630 | if ($Coro::current != $Coro::main) { |
3614 | Carp::cluck "major BUG: server tick called outside of main coro, skipping it" |
3631 | Carp::cluck "major BUG: server tick called outside of main coro, skipping it" |
3615 | unless ++$bug_warning > 10; |
3632 | unless ++$bug_warning > 10; |
3616 | return; |
3633 | return; |
3617 | } |
3634 | } |
3618 | |
3635 | |
3619 | $NOW = $tick_start = EV::now; |
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3620 | |
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3621 | cf::server_tick; # one server iteration |
3636 | cf::server_tick; # one server iteration |
3622 | |
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3623 | $RUNTIME += $TICK; |
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3624 | $NEXT_TICK = $_[0]->at; |
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3625 | |
3637 | |
3626 | if ($NOW >= $NEXT_RUNTIME_WRITE) { |
3638 | if ($NOW >= $NEXT_RUNTIME_WRITE) { |
3627 | $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.; |
3639 | $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.; |
3628 | Coro::async_pool { |
3640 | Coro::async_pool { |
3629 | $Coro::current->{desc} = "runtime saver"; |
3641 | $Coro::current->{desc} = "runtime saver"; |
… | |
… | |
3637 | } |
3649 | } |
3638 | while (my $sig = shift @WAIT_FOR_TICK) { |
3650 | while (my $sig = shift @WAIT_FOR_TICK) { |
3639 | $sig->send; |
3651 | $sig->send; |
3640 | } |
3652 | } |
3641 | |
3653 | |
3642 | $LOAD = ($NOW - $tick_start) / $TICK; |
3654 | $LOAD = ($NOW - $TICK_START) / $TICK; |
3643 | $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; |
3655 | $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; |
3644 | |
3656 | |
3645 | _post_tick; |
3657 | if (0) { |
3646 | }; |
3658 | if ($NEXT_TICK) { |
3647 | $TICK_WATCHER->priority (EV::MAXPRI); |
3659 | my $jitter = $TICK_START - $NEXT_TICK; |
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3660 | $JITTER = $JITTER * 0.75 + $jitter * 0.25; |
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3661 | warn "jitter $JITTER\n";#d# |
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3662 | } |
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3663 | } |
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3664 | } |
3648 | |
3665 | |
3649 | { |
3666 | { |
3650 | # configure BDB |
3667 | # configure BDB |
3651 | |
3668 | |
3652 | BDB::min_parallel 8; |
3669 | BDB::min_parallel 8; |