Help added

This commit is contained in:
Ronaldo Mercado
2010-05-26 00:12:23 +01:00
+60 -78
View File
@@ -17,10 +17,6 @@ use CA;
######### Globals ##########
# Non APS users will want to modify theDbdFile default settings
my $theDbdFile = "/net/helios/iocapps/R3.13.9/ioc/linac/2/dbd/linac.dbd";
my $hostArch;
if ( defined $ENV{"EPICS_HOST_ARCH"} ) {
$hostArch = $ENV{"EPICS_HOST_ARCH"} ;
@@ -28,8 +24,9 @@ if ( defined $ENV{"EPICS_HOST_ARCH"} ) {
$hostArch="solaris-sparc";
}
our( $opt_d, $opt_f, $opt_r);
my $usage = "Usage:\n $0 [-d dbd_file] ( [-f record_type] | [-r] | [record_name] ) [interest]\n";
our( $opt_h, $opt_d, $opt_f, $opt_r);
my $theDbdFile;
my %record = (); # Empty hash to put dbd data in
my $iIdx = 0; # Array indexes for interest, data type and base
my $tIdx = 1;
@@ -58,17 +55,15 @@ my %fieldType = (
DBF_NOACCESS => "ezcaNoAccess"
);
# globals for parallel_caget
# globals for sub caget
my %callback_data;
my $callback_incomplete;
# globals for caget
my $caget_data;
my $caget_incomplete;
my $cadebug = 0;
######### Main program ############
getopts('d:f:r') or die "$usage";
HELP_MESSAGE() unless getopts('hd:f:r');
HELP_MESSAGE() if $opt_h;
# Select the dbd file to use
if($opt_d) { # command line has highest priority
@@ -77,6 +72,9 @@ if($opt_d) { # command line has highest priority
elsif (exists $ENV{CAPR_DBD_FILE}) { # Use the env var if it exists
$theDbdFile = $ENV{CAPR_DBD_FILE};
} # Otherwise use the default set above
else {
die "No dbd file defined. ('capr.pl -h' gives help)\n";
}
parseDbd($theDbdFile);
print "Using $theDbdFile\n\n";
@@ -96,13 +94,14 @@ if($opt_f) {
# Do the business
# Allow commas between arguments as in vxWorks dbpr
die "$usage" unless defined $ARGV[0];
HELP_MESSAGE() unless defined $ARGV[0];
$ARGV[0] =~ s/,/ /; # Get rid of pesky comma if it's there
if($ARGV[0] =~ m/\s+\d/) { # If we replace comma with a space,
($ARGV[0], $ARGV[1]) = split(/ /, $ARGV[0]); #split it
}
$ARGV[0] =~ s/\s+//; # Remove any spaces
$ARGV[0] =~ s/\..*//; # Get rid of field name if it's there
$ARGV[1] = 0 unless defined $ARGV[1]; # default interest level is 0
$ARGV[1] =~ s/\D//g; # Make sure we only use digits
$ARGV[1] = $ARGV[1] || 0; # interest defaults to 0
printRecord($ARGV[0], $ARGV[1]); # Do the do
@@ -217,8 +216,10 @@ sub getRecType {
my $type;
my $data;
$data = caget($name);
if ($data =~ m/Invalid channel name/) { die "Record \"$_[0]\" not found\n"; }
my $fields_read = caget( $name );
if ( $fields_read != 1 ) { die "Record \"$_[0]\" not found\n"; }
$data = $callback_data{ $name };
chomp $data;
$data =~ s/\s+//;
#print("$name is a \"$data\"type\n");
@@ -265,10 +266,10 @@ sub printField {
$outStr = sprintf("%-5s %x", $field, $fieldData);
} elsif ( $dataType eq "ezcaDouble" || $dataType eq "ezcaFloat" ) {
$outStr = sprintf("%-5s %.8f", $field, $fieldData);
} elsif ( $dataType eq "ezcaChar" ) {
} elsif ( $dataType eq "ezcaChar" ) {
$outStr = sprintf("%-5s %d", $field, ord($fieldData));
}else {
# ezcaByte, ezcaShort, ezcaLong
# ezcaByte, ezcaShort, ezcaLong
$outStr = sprintf("%-5s %d", $field, $fieldData);
}
@@ -291,14 +292,21 @@ sub printField {
return($col);
}
# grab a list of pvs simultaneously
# Query for a list of fields simultaneously.
# The results are filled in the the %callback_data global hash
# and the result of the operation is the number of read pvs
# Usage: $read_pvs = parallel_caget( @pvlist )
sub parallel_caget {
#
# NOTE: Not re-entrant because results are written to global hash
# %callback_data
#
# Usage: $fields_read = caget( @pvlist )
sub caget {
my @chans = map { CA->new($_); } @_;
my $wait = 1;
#clear results;
%callback_data = ();
eval { CA->pend_io($wait); };
if ($@) {
if ($@ =~ m/^ECA_TIMEOUT/) {
@@ -321,10 +329,10 @@ sub parallel_caget {
$_->get_callback(\&caget_callback, $type);
} @chans;
my $read_pvs = @chans;
my $fields_read = @chans;
$callback_incomplete = @chans;
CA->pend_event(0.1) while $callback_incomplete;
return $read_pvs;
return $fields_read;
}
sub caget_callback {
@@ -336,7 +344,7 @@ sub caget_callback {
# Given record name and interest level prints data from record fields
# that are at or below the interest level specified.
# Useage: printRecord( $recordName, $interestLevel)
# Usage: printRecord( $recordName, $interestLevel)
sub printRecord {
my $name = $_[0];
my $interest = $_[1];
@@ -347,10 +355,10 @@ sub printRecord {
$recType = getRecType($name);
print("$name is record type $recType\n");
exists($record{$recType}) || die "Record type $recType not found in dbd file --";
#capture list of fields to obtain
my @list = (); #fiels to read
my @fields_pr = (); #fields for print-out
#capture list of fields
my @readlist = (); #fields to read via CA
my @fields_pr = (); #fields for print-out
my @ftypes = (); #types, from parser
my @bases = (); #bases, from parser
foreach $field (sort keys %{$record{$recType}}) {
@@ -362,18 +370,19 @@ sub printRecord {
if( $interest >= $fInterest ) {
$fToGet = $name . "." . $field;
push @fields_pr, $field;
push @list, $fToGet;
push @readlist, $fToGet;
push @ftypes, $fType;
push @bases, $base;
}
}
}
my $read_pvs = parallel_caget( @list );
my $fields_read = caget( @readlist );
# print while iterating over lists gathered
$col = 0;
for (my $i=0; $i < scalar @list; $i++) {
for (my $i=0; $i < scalar @readlist; $i++) {
$field = $fields_pr[$i];
$fToGet = $list[$i];
$fToGet = $readlist[$i];
$data = $callback_data{$fToGet};
$fType = $ftypes[$i];
chomp $data;
@@ -422,52 +431,25 @@ sub printRecordList {
}
}
# returns a terse result of a caget operation
# using perlCA
sub caget {
my $name = $_[0];
print $name . "\n" if $cadebug;
show_call_stack() if $cadebug;
my $channel = CA->new($name);
my $wait = 1;
eval { CA->pend_io($wait); };
if ($@) {
if ($@ =~ m/^ECA_TIMEOUT/) {
my $err = "'" . $channel . "'";
print "Channel connect timed out: $err not found.\n";
}
die $@;
}
my $type = $channel->field_type;
my $count = $channel->element_count;
$channel->get_callback(\&callback_handler, $type);
$caget_incomplete = 1;
CA->pend_event(0.1) while ($caget_incomplete);
return $caget_data;
sub HELP_MESSAGE {
print STDERR "\n",
"Usage: capr.pl -h\n",
" capr.pl [-d dbd_file] -r\n",
" capr.pl [-d dbd_file] -f <record_type>\n",
" capr.pl [-d dbd_file] <record_name> <interest>\n",
"Description:\n",
" Attempts to perform a record print \"dbpr\" via channel access\n",
" for record_name at a given interest level.\n",
" The default interest level is 0.\n\n",
" If used with the f or r options, prints fields/record type lists.\n",
"\n",
"Options:\n",
" -h: Help: Prints this message\n",
" -d Dbd file: specify dbd file used to read record definitions.\n",
" If omitted, the environment variable CAPR_DBD_FILE must be defined\n",
" -r Prints the list of record types\n",
" -f Prints list of fields, interest level, type and base for the\n",
" given record type\n",
"\n";
exit 1;
}
sub callback_handler
{
my ($chan, $status, $data) = @_;
die $status if $status;
#display($chan, $type, $data);
$caget_data = $data;
$caget_incomplete=0;
}
sub show_call_stack {
my ( $path, $line, $subr );
my $max_depth = 30;
my $i = 1;
print("--- Begin stack trace ---\n");
my @call_details;
@call_details = caller($i);
while ( (@call_details) && ($i<$max_depth) ) {
print("$call_details[1] line $call_details[2] in function $call_details[3]\n");
$i = $i +1;
@call_details = caller($i);
}
print("--- End stack trace ---\n");
}