… | |
… | |
90 | our $LINK_MAP; # the special {link} map, which is always available |
90 | our $LINK_MAP; # the special {link} map, which is always available |
91 | |
91 | |
92 | # used to convert map paths into valid unix filenames by replacing / by ∕ |
92 | # used to convert map paths into valid unix filenames by replacing / by ∕ |
93 | our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons |
93 | our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons |
94 | |
94 | |
|
|
95 | our $LOAD; # a number between 0 (idle) and 1 (too many objects) |
|
|
96 | our $LOADAVG; # same thing, but with alpha-smoothing |
|
|
97 | our $tick_start; # for load detecting purposes |
|
|
98 | |
95 | binmode STDOUT; |
99 | binmode STDOUT; |
96 | binmode STDERR; |
100 | binmode STDERR; |
97 | |
101 | |
98 | # read virtual server time, if available |
102 | # read virtual server time, if available |
99 | unless ($RUNTIME || !-e "$LOCALDIR/runtime") { |
103 | unless ($RUNTIME || !-e "$LOCALDIR/runtime") { |
… | |
… | |
138 | The time of the last (current) server tick. |
142 | The time of the last (current) server tick. |
139 | |
143 | |
140 | =item $cf::TICK |
144 | =item $cf::TICK |
141 | |
145 | |
142 | The interval between server ticks, in seconds. |
146 | The interval between server ticks, in seconds. |
|
|
147 | |
|
|
148 | =item $cf::LOADAVG |
|
|
149 | |
|
|
150 | The current CPU load on the server (alpha-smoothed), as a value between 0 |
|
|
151 | (none) and 1 (overloaded), indicating how much time is spent on processing |
|
|
152 | objects per tick. Healthy values are < 0.5. |
|
|
153 | |
|
|
154 | =item $cf::LOAD |
|
|
155 | |
|
|
156 | The raw value load value from the last tick. |
143 | |
157 | |
144 | =item %cf::CFG |
158 | =item %cf::CFG |
145 | |
159 | |
146 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
160 | Configuration for the server, loaded from C</etc/crossfire/config>, or |
147 | from wherever your confdir points to. |
161 | from wherever your confdir points to. |
… | |
… | |
318 | |
332 | |
319 | sub sync_job(&) { |
333 | sub sync_job(&) { |
320 | my ($job) = @_; |
334 | my ($job) = @_; |
321 | |
335 | |
322 | if ($Coro::current == $Coro::main) { |
336 | if ($Coro::current == $Coro::main) { |
|
|
337 | my $time = Event::time; |
|
|
338 | |
323 | # this is the main coro, too bad, we have to block |
339 | # this is the main coro, too bad, we have to block |
324 | # till the operation succeeds, freezing the server :/ |
340 | # till the operation succeeds, freezing the server :/ |
325 | |
341 | |
326 | # TODO: use suspend/resume instead |
342 | # TODO: use suspend/resume instead |
327 | # (but this is cancel-safe) |
343 | # (but this is cancel-safe) |
… | |
… | |
338 | |
354 | |
339 | while ($busy) { |
355 | while ($busy) { |
340 | Coro::cede or Event::one_event; |
356 | Coro::cede or Event::one_event; |
341 | } |
357 | } |
342 | |
358 | |
|
|
359 | $time = Event::time - $time; |
|
|
360 | |
|
|
361 | LOG llevError | logBacktrace, "long sync job\n" |
|
|
362 | if $time > $TICK * 0.5; |
|
|
363 | |
|
|
364 | $tick_start += $time; # do not account sync jobs to server load |
|
|
365 | |
343 | wantarray ? @res : $res[0] |
366 | wantarray ? @res : $res[0] |
344 | } else { |
367 | } else { |
345 | # we are in another coroutine, how wonderful, everything just works |
368 | # we are in another coroutine, how wonderful, everything just works |
346 | |
369 | |
347 | $job->() |
370 | $job->() |
… | |
… | |
372 | my $runtime = "$LOCALDIR/runtime"; |
395 | my $runtime = "$LOCALDIR/runtime"; |
373 | |
396 | |
374 | # first touch the runtime file to show we are still running: |
397 | # first touch the runtime file to show we are still running: |
375 | # the fsync below can take a very very long time. |
398 | # the fsync below can take a very very long time. |
376 | |
399 | |
377 | warn "touching runtime...\n";#d# |
|
|
378 | if (my $fh = aio_open $runtime, O_WRONLY, 0) { |
400 | if (my $fh = aio_open $runtime, O_WRONLY, 0) { |
379 | utime undef, undef, $fh; |
401 | utime undef, undef, $fh; |
380 | } |
402 | } |
381 | |
403 | |
382 | my $guard = cf::lock_acquire "write_runtime"; |
404 | my $guard = cf::lock_acquire "write_runtime"; |
383 | |
405 | |
384 | warn "starting to write runtime...\n";#d# |
|
|
385 | my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
406 | my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
386 | or return; |
407 | or return; |
387 | |
408 | |
388 | my $value = $cf::RUNTIME + 90 + 10; |
409 | my $value = $cf::RUNTIME + 90 + 10; |
389 | # 10 is the runtime save interval, for a monotonic clock |
410 | # 10 is the runtime save interval, for a monotonic clock |
… | |
… | |
403 | or return; |
424 | or return; |
404 | |
425 | |
405 | aio_rename "$runtime~", $runtime |
426 | aio_rename "$runtime~", $runtime |
406 | and return; |
427 | and return; |
407 | |
428 | |
408 | warn "... done writing runtime.\n";#d# |
429 | warn "runtime file written.\n";#d# |
409 | |
430 | |
410 | 1 |
431 | 1 |
411 | } |
432 | } |
412 | |
433 | |
413 | =item cf::datalog type => key => value, ... |
434 | =item cf::datalog type => key => value, ... |
… | |
… | |
2838 | Carp::cluck "major BUG: server tick called outside of main coro, skipping it" |
2859 | Carp::cluck "major BUG: server tick called outside of main coro, skipping it" |
2839 | unless ++$bug_warning > 10; |
2860 | unless ++$bug_warning > 10; |
2840 | return; |
2861 | return; |
2841 | } |
2862 | } |
2842 | |
2863 | |
2843 | $NOW = Event::time; |
2864 | $NOW = $tick_start = Event::time; |
2844 | |
2865 | |
2845 | cf::server_tick; # one server iteration |
2866 | cf::server_tick; # one server iteration |
2846 | |
2867 | |
2847 | $RUNTIME += $TICK; |
2868 | $RUNTIME += $TICK; |
2848 | $NEXT_TICK += $TICK; |
2869 | $NEXT_TICK += $TICK; |
… | |
… | |
2856 | } |
2877 | } |
2857 | |
2878 | |
2858 | # my $AFTER = Event::time; |
2879 | # my $AFTER = Event::time; |
2859 | # warn $AFTER - $NOW;#d# |
2880 | # warn $AFTER - $NOW;#d# |
2860 | |
2881 | |
|
|
2882 | if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { |
|
|
2883 | $sig->send; |
|
|
2884 | } |
|
|
2885 | while (my $sig = shift @WAIT_FOR_TICK) { |
|
|
2886 | $sig->send; |
|
|
2887 | } |
|
|
2888 | |
|
|
2889 | $NOW = Event::time; |
|
|
2890 | |
2861 | # if we are delayed by four ticks or more, skip them all |
2891 | # if we are delayed by four ticks or more, skip them all |
2862 | $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; |
2892 | $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
2863 | |
2893 | |
2864 | $TICK_WATCHER->at ($NEXT_TICK); |
2894 | $TICK_WATCHER->at ($NEXT_TICK); |
2865 | $TICK_WATCHER->start; |
2895 | $TICK_WATCHER->start; |
2866 | |
2896 | |
2867 | if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { |
2897 | $LOAD = ($NOW - $tick_start) / $TICK; |
2868 | $sig->send; |
2898 | $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; |
2869 | } |
|
|
2870 | while (my $sig = shift @WAIT_FOR_TICK) { |
|
|
2871 | $sig->send; |
|
|
2872 | } |
|
|
2873 | |
2899 | |
2874 | _post_tick; |
2900 | _post_tick; |
|
|
2901 | |
|
|
2902 | |
2875 | }, |
2903 | }, |
2876 | ); |
2904 | ); |
2877 | |
2905 | |
2878 | { |
2906 | { |
2879 | BDB::max_poll_time $TICK * 0.1; |
2907 | BDB::max_poll_time $TICK * 0.1; |