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Code Issues Releases Wiki Activity

defect 4304 - fixed some more interprocess communication problems

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This commit is contained in:
mellor
2014-10-22 17:20:07 -04:00
parent f904ce2cc1
commit 7e8c02bf07
1 changed files with 28 additions and 3 deletions
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31
xCAT-server/sbin/xcatd
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@@ -25,6 +25,8 @@ my %supported_encodes = (
);
my $sslctl;
my $udpctl;
my $pid_UDP;
my $pid_MON;
# if AIX - make sure we include perl 5.8.2 in INC path.
# Needed to find perl dependencies shipped in deps tarball.
if ($^O =~ /^aix/i) {
@@ -198,8 +200,13 @@ $xcatdir = (($tmp and $tmp->{value}) ? $tmp->{value} : "/etc/xcat");
$sitetab->close;
my $progname;
my $pipeexpected;
my $ssl2udppipe=0;
$SIG{PIPE} = sub {
if ($pipeexpected) { return; }
if ($ssl2udppipe) {
xCAT::MsgUtils->message("S","SIGPIPE xcatd SSL listener to udp service pipe is broken. Ignore this error if you are shutting down or restarting xcatd.");
return;
}
confess "SIGPIPE $$progname encountered a broken pipe (probably Ctrl-C by client)";
};
$progname = \$0;
@@ -851,6 +858,10 @@ my %immediatechildren;
sub generic_reaper {
local($!);
while (($CHILDPID=waitpid(-1,WNOHANG)) > 0) {
if (($CHILDPID == $pid_UDP) && ($udpctl)) {
# got here because UDP child is gone
close($udpctl); $udpctl=0;
}
yield;
}
$SIG{CHLD} = \&generic_reaper;
@@ -865,9 +876,15 @@ sub ssl_reaper {
$sslclients--;
$numdone--;
}
if (($CHILDPID == $pid_UDP) && ($udpctl)) {
# got here because UDP child is gone
close($udpctl); $udpctl=0;
}
}
if ($udpctl) {
$ssl2udppipe=1;
store_fd({clientcountchange=>$numdone,sslclientcount=>$sslclients},$udpctl); #notify udp service of how many clients are active
$ssl2udppipe=0;
}
$SIG{CHLD} = \&ssl_reaper;
}
@@ -879,6 +896,10 @@ sub dispatch_reaper {
delete $dispatched_children{$CHILDPID};
$dispatch_children--;
}
if (($CHILDPID == $pid_UDP) && ($udpctl)) {
# got here because UDP child is gone
close($udpctl); $udpctl=0;
}
}
$SIG{CHLD} = \&dispatch_reaper;
}
@@ -890,14 +911,16 @@ sub plugin_reaper {
delete $plugin_children{$CHILDPID};
$plugin_numchildren--;
}
if (($CHILDPID == $pid_UDP) && ($udpctl)) {
# got here because UDP child is gone
close($udpctl); $udpctl=0;
}
}
$SIG{CHLD} = \&plugin_reaper;
}
$SIG{CHLD} = \&generic_reaper;
my $pid_UDP;
my $pid_MON;
$SIG{TERM} = $SIG{INT} = sub {
#printf("Asked to quit...\n");
$quit++;
@@ -1211,7 +1234,9 @@ if ($inet6support) {
}
$sslclients++; #THROTTLE
if ($udpctl) {
$ssl2udppipe=1;
store_fd({clientcountchange=>1,sslclientcount=>$sslclients},$udpctl); #notify udp service of how many clients are active
$ssl2udppipe=0;
}
$cnnection->close();
}
@@ -2113,7 +2138,7 @@ sub get_request {
my $request = shift;
if ($encode eq "xml") {
my $line = "";
while ($request !~ m/<\/xcatrequest>/) {
while ((!$request) || ($request !~ m/<\/xcatrequest>/)) {
my $flags=fcntl($sock,F_GETFL,0);
$flags |= O_NONBLOCK; #we want sysread to bail on us, select seems to be evil to us still..
fcntl($sock,F_SETFL,$flags);