tools: libxl: add libxl_domid to IDL

Language bindings would like to strongly type the domid as a separate
type so make it a defined type.

This patch only impacts the datatypes and autogenerated destructors, I
didn't think the churn of switching the uint32_t's through the code
was worth it.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>

tools/python/xen/lowlevel/xl/xl.c

@@ -155,6 +155,7 @@ int genwrap__ll_set(PyObject *v, long long *val, long long mask)
     *val = tmp;
     return 0;
 }
+
 static int fixed_bytearray_set(PyObject *v, uint8_t *ptr, size_t len)
 {
     char *tmp;
@@ -275,6 +276,11 @@ int attrib__libxl_uuid_set(PyObject *v, libxl_uuid *pptr)
     return fixed_bytearray_set(v, libxl_uuid_bytearray(pptr), 16);
 }
 
+int attrib__libxl_domid_set(PyObject *v, libxl_domid *domid) {
+    *domid = PyInt_AsLong(v);
+    return 0;
+}
+
 int attrib__struct_in_addr_set(PyObject *v, struct in_addr *pptr)
 {
     PyErr_SetString(PyExc_NotImplementedError, "Setting in_addr");
@@ -362,6 +368,10 @@ PyObject *attrib__libxl_uuid_get(libxl_uuid *pptr)
     return fixed_bytearray_get(libxl_uuid_bytearray(pptr), 16);
 }
 
+PyObject *attrib__libxl_domid_get(libxl_domid *domid) {
+    return PyInt_FromLong(*domid);
+}
+
 PyObject *attrib__struct_in_addr_get(struct in_addr *pptr)
 {
     PyErr_SetString(PyExc_NotImplementedError, "Getting in_addr");