public void testLookupGlobalVariable() {
NativeLibrary lib = NativeLibrary.getInstance("testlib");
Pointer global = lib.getGlobalVariableAddress("test_global");
assertNotNull("Test variable not found", global);
final int MAGIC = 0x12345678;
assertEquals("Wrong value for library global variable", MAGIC, global.getInt(0));
global.setInt(0, MAGIC + 1);
assertEquals("Library global variable not updated", MAGIC + 1, global.getInt(0));
}
@Override
public void fromNative(Runtime runtime, Pointer memory, long offset) {
switch (runtime.findType(typeAlias).getNativeType()) {
case SCHAR:
case UCHAR:
value = memory.getByte(offset);
break;
case SSHORT:
case USHORT:
value = memory.getShort(offset);
break;
case SINT:
case UINT:
value = memory.getInt(offset);
break;
case SLONG:
case ULONG:
value = memory.getLong(offset);
break;
case SLONGLONG:
case ULONGLONG:
value = memory.getLongLong(offset);
break;
case ADDRESS:
value = memory.getAddress(offset);
break;
case FLOAT:
value = memory.getFloat(offset);
break;
case DOUBLE:
value = memory.getDouble(offset);
break;
default:
throw new UnsupportedOperationException("unsupported type: " + typeAlias);
}
}
public int h_errno() {
return h_errnoPtr.getInt(0);
}