[Firebug-cvs] fireboard/tools/src/xlisten genpgsql.pm,NONE,1.1

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Update of /cvsroot/firebug/fireboard/tools/src/xlisten
In directory sc8-pr-cvs5.sourceforge.net:/tmp/cvs-serv20795

Added Files:
	genpgsql.pm 
Log Message:
updating from beta.

--- NEW FILE: genpgsql.pm ---
# This file is part of the nesC compiler.
#    Copyright (C) 2002 Intel Corporation
# 
# The attached "nesC" software is provided to you under the terms and
# conditions of the GNU General Public License Version 2 as published by the
# Free Software Foundation.
# 
# nesC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with nesC; see the file COPYING.  If not, write to
# the Free Software Foundation, 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.

## TODO for autogenerating postgres sql code.
## ----------------------------------------------------------
## Several things need to be done to make this viable for the
## kinds of messages we want to process.  The first part is
## to get rid of the java type conversions, and preserve the
## structure as defined the tinyos header file.  We can do this
## because nesc native types are identical to c native types.
##

## Parts of this code were written for the NSF_ITR funded 
## firebug project.
##
## Code based on genjava.pm written by David Gay (?)
## authors David Gay (? + others?),  Dave Doolin

true;

sub gen() {
    my ($classname, @spec) = @_;

    require migdecode;
    &decode(@spec);

    &usage("no classname name specified") if !defined($java_classname);

    $java_extends = "net.tinyos.message.Message" if !defined($java_extends);
    # See if name has a package specifier
    if ($java_classname =~ /(.*)\.([^.]*)$/) {
	$package = $1;
	$java_classname = $2."P";
    }

    $I = "   ";
    $smallskip = "\n\n";
    $medskip   = "\n\n\n\n";
    $bigskip   = "\n\n\n\n\n\n";

    print "/**\n";
    print " * This class is automatically generated by mig. DO NOT EDIT THIS FILE.\n";
    print " * This code provides postgres table  to the '$java_classname'\n";
    print " * message type.\n";
    print " */\n\n";

    &gen_sql_table();

    print $medskip;

}

sub gen_sql_table() {

    print "CREATE TABLE $java_classname (\n";

    print "   result_time timestamp without time zone,\n";

    # Get the size of the array.
    $numfields = $#fields;
    $i = 0;
    for (@fields) {
	($field, $type, $bitlength, $offset, $amax, $abitsize, $aoffset) = @{$_};

        ($ctype, $java_access, $arrayspec) = &cbasetype($type, $bitlength, 0);

        # This is clunky but will work. A better way to do it would be to store
	# the nested struct internally in the field array somehow.
	# Maybe a perl guru can figure that out.
	# What needs to be done is to find one of these, then
	# store it until all the members written out,
	# then print it.
        if ($field =~ /(.*)\.([^.]*)$/) {
	   $struct = $1;
	   $member = $2;
           #print STDERR $struct;#.", "$member."\n";
        }

	##  Gets an array of format specifiers useful in *print* functions
	## in libc.  the @format array can be passed
        push(@format, &formatstring($type, $bitlength, 0));
	$field =~  s/\./_/g;
	printf "$I$field $ctype";
        if ($i < $numfields) {
	  print ",\n";
	}
	$i++;
      }
    print ");";
}

sub gen_struct() {

    print "struct _$java_classname {\n";

    ## todo move this to sub print_msg_struct().
    for (@fields) {
	($field, $type, $bitlength, $offset, $amax, $abitsize, $aoffset) = @{$_};

        ($ctype, $java_access, $arrayspec) = &cbasetype($type, $bitlength, 0);

        # This is clunky but will work. A better way to do it would be to store
	# the nested struct internally in the field array somehow.
	# Maybe a perl guru can figure that out.
	# What needs to be done is to find one of these, then
	# store it until all the members written out,
	# then print it.
        if ($field =~ /(.*)\.([^.]*)$/) {
	   $struct = $1;
	   $member = $2;
           #print STDERR $struct;#.", "$member."\n";
        }

	##  Gets an array of format specifiers useful in *print* functions
	## in libc.  the @format array can be passed
        push(@format, &formatstring($type, $bitlength, 0));
	$field =~  s/\./_/g;
	printf "$I$field $ctype,\n";
      }
    print "};";
}

## TODO Change all these back to the base types available in c, which are
## the same as in nesc.  Probably need to add a "bitfield" handler to 
## do it right.
sub cbasetype() 
{
    my ($basetype, $bitlength, $arraydims) = @_;
    my $jtype, $acc;

    # Pick the java type whose range is closest to the corresponding C type
    if ($basetype eq "U") {
      $acc = "UIntElement";
      if ($bitlength < 8) { $jtype = "smallint"; }
      elsif ($bitlength < 16) { $jtype = "integer"; }
      elsif ($bitlength < 32) { $jtype = "integer"; }
      else { $jtype = "integer"; }
    }
    elsif ($basetype eq "I") {
      $acc = "SIntElement";
      if ($bitlength <= 8) { $jtype = "smallint"; }
      elsif ($bitlength <= 16) { $jtype = "smallint"; }
      elsif ($bitlength <= 32) { $jtype = "integer"; }
      else { $jtype = "long"; }
    }
    elsif ($basetype eq "F" || $basetype eq "D" || $basetype eq "LD") {
      $acc = "FloatElement";
      $jtype = "float";
    }

    if ($arraydims > 0) {
      # For array types
      $arrayspec = "";
      for ($i = 0; $i < $arraydims; $i++) {
	$arrayspec = "[]" . $arrayspec;
      }
    } 

    return ($jtype, $acc, $arrayspec);
}

## TODO Get rid of all the superfluous code, 
## or move the functionality into cbasetype.
sub formatstring() 
{
    my ($basetype, $bitlength, $arraydims) = @_;
    my $jtype, $acc, $formatstring;

    # Pick the java type whose range is closest to the corresponding C type
    if ($basetype eq "U") {
      $acc = "UIntElement";
      if ($bitlength < 8) { $jtype = "byte"; $formatstring = "c";}
      elsif ($bitlength < 16) { $jtype = "short"; $formatstring = "i";}
      elsif ($bitlength < 32) { $jtype = "int"; $formatstring = "i";}
      else { $jtype = "long"; $formatstring = "%i"}
    }
    elsif ($basetype eq "I") {
      $acc = "SIntElement";
      if ($bitlength <= 8) { $jtype = "byte"; $formatstring = "c";}
      elsif ($bitlength <= 16) { $jtype = "short"; $formatstring = "i";}
      elsif ($bitlength <= 32) { $jtype = "int"; $formatstring = "i";}
      else { $jtype = "long"; }
    }
    elsif ($basetype eq "F" || $basetype eq "D" || $basetype eq "LD") {
      $acc = "FloatElement";
      $jtype = "float";
      $formatstring = "f";
    }

    if ($arraydims > 0) {
      # For array types
      $arrayspec = "";
      for ($i = 0; $i < $arraydims; $i++) {
	$arrayspec = "[]" . $arrayspec;
      }
    } 

    #return ($jtype, $acc, $arrayspec, $formatstring);
    return ($formatstring);
}

sub printoffset()
{
    my ($offset, $max, $bitsize, $aoffset, $inbits) = @_;

    print "        int offset = $offset;\n";
    for ($i = 1; $i <= @$max; $i++) {
	# check index bounds. 0-sized arrays don't get an upper-bound check
	# (they represent variable size arrays. Normally they should only
	# occur as the first-dimension of the last element of the structure)
	if ($$max[$i - 1] != 0) {
	    print "        if (index$i < 0 || index$i >= $$max[$i - 1]) throw new ArrayIndexOutOfBoundsException();\n";
	}
	else {
	    print "        if (index$i < 0) throw new ArrayIndexOutOfBoundsException();\n";
	}
	print "        offset += $$aoffset[$i - 1] + index$i * $$bitsize[$i - 1];\n";
    }
    if ($inbits) {
      print "        return offset;\n";
    } else {
      print "        return (offset / 8);\n";
    }
}

sub printarrayget() {
  my ($javafield, $javatype, $arrayspec, $bitlength, $amax, $abitsize) = @_;

  # Check whether array has known size
  for ($i = 0; $i < @$amax; $i++) {
    if ($$amax[$i] == 0) {
      print "        throw new IllegalArgumentException(\"Cannot get field as array - unknown size\");\n";
      return;
    }
  }

  print "        $javatype$arrayspec tmp = new $javatype";
  for ($i = 0; $i < @$amax; $i++) {
    print "[$$amax[$i]]";
  }
  print ";\n";

  $indent = " ";
  for ($i = 0; $i < @$amax; $i++) {
    print "      $indent for (int index$i = 0; index$i < numElements_$javafield($i); index$i++) {\n";
    $indent = $indent . "  ";
  }
  $indent = $indent . "  ";
  print "      $indent tmp";
  for ($i = 0; $i < @$amax; $i++) {
    print "[index$i]";
  }
  print " = getElement_$javafield(";
  for ($i = 0; $i < @$amax; $i++) {
    print "index$i";
    if ($i != @$amax-1) { print ","; }
  }
  print ");\n";

  $indent = substr($indent, 0, length($indent)-2);
  for ($i = 0; $i < @$amax; $i++) {
    $indent = substr($indent, 0, length($indent)-2);
    print "      $indent }\n";
  }
  print "        return tmp;\n";
}

sub printarrayset() {
  my ($javafield, $javatype, $arrayspec, $bitlength, $amax, $abitsize) = @_;

  $indent = " ";
  $val = "";
  for ($i = 0; $i < @$amax; $i++) {
    print "      $indent for (int index$i = 0; index$i < value$val.length; index$i++) {\n";
    $val = $val . "[index$i]";
    $indent = $indent . "  ";
  }
  $indent = $indent . "  ";
  print "      $indent setElement_$javafield(";
  for ($i = 0; $i < @$amax; $i++) {
    print "index$i";
    if ($i != @$amax-1) { print ","; }
  }
  print ", value";
  for ($i = 0; $i < @$amax; $i++) {
    print "[index$i]";
  }
  print ");\n";

  $indent = substr($indent, 0, length($indent)-2);
  for ($i = 0; $i < @$amax; $i++) {
    $indent = substr($indent, 0, length($indent)-2);
    print "      $indent }\n";
  }
}