[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC vs.
Revision 1.414 by root, Thu Apr 10 09:10:45 2008 UTC

+#
+# This file is part of Deliantra, the Roguelike Realtime MMORPG.
+#
+# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+#
+# Deliantra is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# The authors can be reached via e-mail to <support@deliantra.net>
+#
 package cf;
 use utf8;
 use strict;
 use Symbol;
 use List::Util;
 use Socket;
-use EV 1.86;
+use EV 3.2;
 use Opcode;
 use Safe;
 use Safe::Hole;
 use Storable ();
-use Coro 4.32 ();
+use Coro 4.50 ();
 use Coro::State;
 use Coro::Handle;
 use Coro::EV;
 use Coro::Timer;
 use Coro::Signal;
 use JSON::XS 2.01 ();
 use BDB ();
 use Data::Dumper;
 use Digest::MD5;
 use Fcntl;
-use YAML::Syck ();
+use YAML ();
 use IO::AIO 2.51 ();
 use Time::HiRes;
 use Compress::LZF;
 use Digest::MD5 ();
 # configure various modules to our taste
 #
 $Storable::canonical = 1; # reduce rsync transfers
 Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
 Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
-# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
-$YAML::Syck::ImplicitUnicode = 1;
 $Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
 sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
 our $RANDOMDIR = "$LOCALDIR/random";
 our $BDBDIR    = "$LOCALDIR/db";
 our %RESOURCE;
 our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
-our $TICK_WATCHER;
 our $AIO_POLL_WATCHER;
 our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
 our $NEXT_TICK;
 our $USE_FSYNC = 1; # use fsync to write maps - default off
 # used to convert map paths into valid unix filenames by replacing / by ∕
 our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
 our $LOAD;       # a number between 0 (idle) and 1 (too many objects)
 our $LOADAVG;    # same thing, but with alpha-smoothing
+our $JITTER;     # average jitter
-our $tick_start; # for load detecting purposes
+our $TICK_START; # for load detecting purposes
 binmode STDOUT;
 binmode STDERR;
 # read virtual server time, if available
       LOG llevError, $msg;
    };
 }
 $Coro::State::DIEHOOK = sub {
+   return unless $^S eq 0; # "eq", not "=="
+   if ($Coro::current == $Coro::main) {#d#
+      warn "DIEHOOK called in main context, Coro bug?\n";#d#
+      return;#d#
+   }#d#
+   # kill coroutine otherwise
    warn Carp::longmess $_[0];
-   Coro::terminate;
+   Coro::terminate
 };
+$SIG{__DIE__} = sub { }; #d#?
 @safe::cf::global::ISA         = @cf::global::ISA         = 'cf::attachable';
 @safe::cf::object::ISA         = @cf::object::ISA         = 'cf::attachable';
 @safe::cf::player::ISA         = @cf::player::ISA         = 'cf::attachable';
 @safe::cf::client::ISA         = @cf::client::ISA         = 'cf::attachable';
    ! ! $LOCK{$key}
 }
 sub freeze_mainloop {
-   return unless $TICK_WATCHER->is_active;
+   tick_inhibit_inc;
-   my $guard = Coro::guard {
+   Coro::guard \&tick_inhibit_dec;
-      $TICK_WATCHER->start;
-   };
-   $TICK_WATCHER->stop;
-   $guard
 }
 =item cf::periodic $interval, $cb
 Like EV::periodic, but randomly selects a starting point so that the actions
       # this is the main coro, too bad, we have to block
       # till the operation succeeds, freezing the server :/
       LOG llevError, Carp::longmess "sync job";#d#
-      # TODO: use suspend/resume instead
-      # (but this is cancel-safe)
       my $freeze_guard = freeze_mainloop;
       my $busy = 1;
       my @res;
          } else {
             EV::loop EV::LOOP_ONESHOT;
          }
       }
-      $time = EV::time - $time;
+      my $time = EV::time - $time;
-      LOG llevError | logBacktrace, Carp::longmess "long sync job"
-         if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
-      $tick_start += $time; # do not account sync jobs to server load
+      $TICK_START += $time; # do not account sync jobs to server load
       wantarray ? @res : $res[0]
    } else {
       # we are in another coroutine, how wonderful, everything just works
                my $msg = $@ ? "$v->{path}: $@\n"
                             : "$v->{base}: extension inactive.\n";
                if (exists $v->{meta}{mandatory}) {
                   warn $msg;
-                  warn "mandatory extension failed to load, exiting.\n";
+                  cf::cleanup "mandatory extension failed to load, exiting.";
-                  exit 1;
                }
                warn $msg;
             }
 sub reload_config {
    open my $fh, "<:utf8", "$CONFDIR/config"
       or return;
    local $/;
-   *CFG = YAML::Syck::Load <$fh>;
+   *CFG = YAML::Load <$fh>;
    $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
    $cf::map::MAX_RESET     = $CFG{map_max_reset}     if exists $CFG{map_max_reset};
    $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
    reload_config;
    db_init;
    load_extensions;
-   $TICK_WATCHER->start;
    $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
+   evthread_start IO::AIO::poll_fileno;
    EV::loop;
 }
 #############################################################################
 # initialisation and cleanup
       warn "leaving sync_job";
       1
    } or do {
       warn $@;
-      warn "error while reloading, exiting.";
+      cf::cleanup "error while reloading, exiting.";
-      exit 1;
    };
    warn "reloaded";
 };
 sub reload_perl() {
    # doing reload synchronously and two reloads happen back-to-back,
    # coro crashes during coro_state_free->destroy here.
    $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
+      do_reload_perl;
       undef $RELOAD_WATCHER;
-      do_reload_perl;
    };
 }
 register_command "reload" => sub {
    my ($who, $arg) = @_;
 our @WAIT_FOR_TICK;
 our @WAIT_FOR_TICK_BEGIN;
 sub wait_for_tick {
-   return unless $TICK_WATCHER->is_active;
+   return if tick_inhibit;
    return if $Coro::current == $Coro::main;
    my $signal = new Coro::Signal;
    push @WAIT_FOR_TICK, $signal;
    $signal->wait;
 }
 sub wait_for_tick_begin {
-   return unless $TICK_WATCHER->is_active;
+   return if tick_inhibit;
    return if $Coro::current == $Coro::main;
    my $signal = new Coro::Signal;
    push @WAIT_FOR_TICK_BEGIN, $signal;
    $signal->wait;
 }
-$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
+sub tick {
    if ($Coro::current != $Coro::main) {
       Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
          unless ++$bug_warning > 10;
       return;
    }
-   $NOW = $tick_start = EV::now;
    cf::server_tick; # one server iteration
-   $RUNTIME += $TICK;
-   $NEXT_TICK = $_[0]->at;
    if ($NOW >= $NEXT_RUNTIME_WRITE) {
       $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
       Coro::async_pool {
          $Coro::current->{desc} = "runtime saver";
    }
    while (my $sig = shift @WAIT_FOR_TICK) {
       $sig->send;
    }
-   $LOAD = ($NOW - $tick_start) / $TICK;
+   $LOAD = ($NOW - $TICK_START) / $TICK;
    $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
-   _post_tick;
+   if (0) {
-};
+      if ($NEXT_TICK) {
-$TICK_WATCHER->priority (EV::MAXPRI);
+         my $jitter = $TICK_START - $NEXT_TICK;
+         $JITTER = $JITTER * 0.75 + $jitter * 0.25;
+         warn "jitter $JITTER\n";#d#
+      }
+   }
+}
 {
    # configure BDB
    BDB::min_parallel 8;

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC vs. Revision 1.414 by root, Thu Apr 10 09:10:45 2008 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC vs.
Revision 1.414 by root, Thu Apr 10 09:10:45 2008 UTC