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Start gruntmaster-exec alarm just before exec
[gruntmaster-daemon.git]
/
gruntmaster-exec
diff --git
a/gruntmaster-exec
b/gruntmaster-exec
index b6577f4649206fee2e1cd108b6ec62cce581d8f1..fd79d8f316c322c9008f14bbe98b402772011c77 100755
(executable)
--- a/
gruntmaster-exec
+++ b/
gruntmaster-exec
@@
-46,7
+46,13
@@
undef $mlimit if @sudo; # sudo wants a lot of address space
my $ret = fork // die 'Cannot fork';
if ($ret) {
my $ret = fork // die 'Cannot fork';
if ($ret) {
- my $tle;
+ my ($tle, $child_ready);
+ local $SIG{USR1} = sub { $child_ready = 1 };
+ sleep 3; # Wait for ready signal (SIGUSR1)
+ unless ($child_ready) {
+ kill KILL => $ret;
+ exit !say ERR, "\nNo response from gruntmaster-exec child";
+ }
local $SIG{ALRM} = sub {
if ($killuser) {
system @sudo, 'pkill', '-KILL', '-u', $killuser;
local $SIG{ALRM} = sub {
if ($killuser) {
system @sudo, 'pkill', '-KILL', '-u', $killuser;
@@
-92,6
+98,7
@@
if ($ret) {
print $adj 900;
close $adj;
unshift @ARGV, @sudo;
print $adj 900;
close $adj;
unshift @ARGV, @sudo;
+ kill USR1 => getppid; # Tell parent process that we're ready
say STDERR "Executing: ", join ' ', map { "'$_'" } @ARGV if $debug;
exec @ARGV;
}
say STDERR "Executing: ", join ' ', map { "'$_'" } @ARGV if $debug;
exec @ARGV;
}
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