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add description for trace subroutine and remove useless lines

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huweihua 2015-08-18 04:24:05 -04:00
parent 4dcbe0ea48
commit f6eb1d3bb3
1 changed files with 67 additions and 32 deletions
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99
perl-xCAT/xCAT/MsgUtils.pm
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@ -741,45 +741,80 @@ sub verbose_message
}
}
#--------------------------------------------------------------------------------
=head3 trace
Display different level trace message in systemd.
Arguments:
$verbose: indicate whether current command is with -V option. 1 is yes and 0 is no.
$level: the level of trace message, can be one of "I","W","E","D","i","w","e","d".
"I" or "i": means information level.
"W" or "w": means warning level.
"E" or "e": means error level.
"D" or "d": means debug level.
As long as the trace subroutine is called, "information", "warning" and "error" level message will be displayed in systemd.
The "debug" level message is displayed in systemd noly when any one of the below two conditions is true
1. The current command with -V option. i.e. $verbose=1.
2. The xcatdebugmode, which is an attribute of site table, equals 1.
If $level is not any one of "I","W","E","D","i","w","e","d", the trace subroutine do nothing.
$logcontent: the specific message wanted to be displayed in systemd
Returns:
none
Error:
none
Note:
Label "xcat" and trace message level, such as "INFO", "ERR", "WARNING" AND "DEBUG", will be added before real trace message automatically. It's convenient to filter in systemd.
Example:
xCAT::MsgUtils->trace(1,"D","this is debug trace message");
xCAT::MsgUtils->trace(0,"i","this is information trace message");
xCAT::MsgUtils->trace(0,"E","this is error trace message");
=cut
#--------------------------------------------------------------------------------
sub trace(){
shift;
my $verbose = shift;
my $level = shift;
my $logcontent = shift;
my $prefix = "";
if(($level eq "E")||($level eq "e")){$prefix="ERR";}
if(($level eq "W")||($level eq "w")){$prefix="WARNING";}
if(($level eq "I")||($level eq "i")){$prefix="INFO";}
if(($level eq "D")||($level eq "d")){$prefix="DEBUG";}
#print "prefix = $prefix\n";
my @tmp = xCAT::TableUtils->get_site_attribute("xcatdebugmode");
my $xcatdebugmode=$tmp[0];
#print ">>>>>>>xcatdebugmode = $xcatdebugmode >>>>>>>>>>>>\n";
if (($level eq "E")
||($level eq "e")
||($level eq "I")
||($level eq "i")
||($level eq "W")
||($level eq "w")){
my $msg = $prefix." ".$logcontent;
eval {
#print "msg = $msg\n";
openlog("xCAT", "nofatal,pid", "local4");
syslog("$prefix", $msg);
closelog();
};
}
my $logcontent = shift;
my $prefix = "";
if(($level eq "E")||($level eq "e")){$prefix="ERR";}
if(($level eq "W")||($level eq "w")){$prefix="WARNING";}
if(($level eq "I")||($level eq "i")){$prefix="INFO";}
if(($level eq "D")||($level eq "d")){$prefix="DEBUG";}
my @tmp = xCAT::TableUtils->get_site_attribute("xcatdebugmode");
my $xcatdebugmode=$tmp[0];
if (($level eq "E")
||($level eq "e")
||($level eq "I")
||($level eq "i")
||($level eq "W")
||($level eq "w")){
my $msg = $prefix." ".$logcontent;
eval {
openlog("xcat", "nofatal,pid", "local4");
syslog("$prefix", $msg);
closelog();
};
}
if (($level eq "D")
||($level eq "d")){
if(($verbose == 1 )||($xcatdebugmode eq "1")){
||($level eq "d")){
if(($verbose == 1 )||($xcatdebugmode eq "1")){
my $msg = $prefix." ".$logcontent;
eval {
#print "msg = $msg\n";
openlog("xCAT", "nofatal,pid", "local4");
openlog("xcat", "nofatal,pid", "local4");
syslog("$prefix", $msg);
closelog();
}