#! perl

# restart server when certain resource limits are exceeded

our $MAX_VMSIZE  = $cf::CFG{checkrusage}{vmsize} || 1_000_000_000;

$^O eq "linux" or die "only linux supported right now.\n";

our $TIMER = cf::periodic 10, sub {
   open my $fh, "</proc/self/stat"
      or return;

   sysread $fh, my $stat, 4096; # only a single line
   my $vmsize = (split / /, $stat)[22];

   cf::cleanup "memory usage growing high, server would run out of memory soon", 0
      if $vmsize >= $MAX_VMSIZE;
};