Re: [Sablevm-user] jni: LD_LIBRARY_PATH ignored

[Prof. E. M. G. <eti...@uq...>]

David B=E9langer wrote:
> Properties are simple (key,value) pairs.  There cannot be several pairs=

> stored with the same key.  I am not sure what SableVM does if one
> is specified several times.  It might just use the last value?

All command-line properties (e.g. "--property=3D...") are passed to the c=
lass-library.

In sablevm-class-library, src/java/lang/Runtime.java:

=2E..
   private static void insertSystemProperties(Properties p)
   {
=2E..
     // get command-line passed value. These values may override
     // default values above.
     int count =3D getPropertyCount();
     for (int i =3D 0; i < count; i++)
     {
       String property =3D getProperty(i);
       int equal_position =3D property.indexOf('=3D');
       String name =3D property.substring(0, equal_position);
       String value;

       if (equal_position < property.length())
       {
         value =3D property.substring(equal_position + 1);
       }
       else
       {
         value =3D "";
       }

       p.setProperty(name, value);
     }
=2E..

So, if you pass the same property many times, p.setProperty(name, value) =
will be=20
called appropriately.  The semantics of java.util.Properties indicate tha=
t only=20
the last assigned value will be retained.

As you see, I like to keep the native code to a minimum, in SableVM.  I t=
ry to=20
do as much as I can in Java.  When you modify SableVM, try to do the same=
=2E  [I=20
know David already does this:-)]

Etienne

--=20
Etienne M. Gagnon, Ph.D.             http://www.info.uqam.ca/~egagnon/
SableVM:                                       http://www.sablevm.org/
SableCC:                                       http://www.sablecc.org/