[XEND] Add more API implementations, add sched_id_get to xc.

Signed-off-by: Alastair Tse <atse@xensource.com>

tools/python/xen/lowlevel/xc/xc.c

@@ -647,6 +647,15 @@ static PyObject *pyxc_shadow_mem_control(PyObject *self,
     return Py_BuildValue("i", mbarg);
 }
 
+static PyObject *pyxc_sched_id_get(XcObject *self) {
+    
+    int sched_id;
+    if (xc_sched_id(self->xc_handle, &sched_id) != 0)
+        return PyErr_SetFromErrno(xc_error);
+
+    return Py_BuildValue("i", sched_id);
+}
+
 static PyObject *pyxc_sched_credit_domain_set(XcObject *self,
                                               PyObject *args,
                                               PyObject *kwds)
@@ -976,6 +985,12 @@ static PyMethodDef pyxc_methods[] = {
       " vcpus   [int, 1]:   Number of Virtual CPUS in domain.\n\n"
       "Returns: [int] 0 on success; -1 on error.\n" },
 
+    { "sched_id_get",
+      (PyCFunction)pyxc_sched_id_get,
+      METH_NOARGS, "\n"
+      "Get the current scheduler type in use.\n"
+      "Returns: [int] sched_id.\n" },    
+
     { "sedf_domain_set",
       (PyCFunction)pyxc_sedf_domain_set,
       METH_KEYWORDS, "\n"
@@ -1242,6 +1257,11 @@ PyMODINIT_FUNC initxc(void)
 
     Py_INCREF(xc_error);
     PyModule_AddObject(m, "Error", xc_error);
+
+    /* Expose some libxc constants to Python */
+    PyModule_AddIntConstant(m, "XEN_SCHEDULER_SEDF", XEN_SCHEDULER_SEDF);
+    PyModule_AddIntConstant(m, "XEN_SCHEDULER_CREDIT", XEN_SCHEDULER_CREDIT);
+
 }
 
 

tools/python/xen/xend/XendAPI.py

@@ -701,23 +701,23 @@ class XendAPI:
     
     def vm_get_actions_after_shutdown(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
-        return xen_api_success('')
+        return xen_api_success(dom.get_on_shutdown())
     
     def vm_get_actions_after_reboot(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
-        return xen_api_success('')
+        return xen_api_success(dom.get_on_reboot())
     
     def vm_get_actions_after_suspend(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
-        return xen_api_success('')
+        return xen_api_success(dom.get_on_suspend())
     
     def vm_get_actions_after_crash(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
-        return xen_api_success('')
+        return xen_api_success(dom.get_on_crash())
     
     def vm_get_bios_boot(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)
-        return xen_api_success('')
+        return xen_api_success(dom.get_bios_boot())
     
     def vm_get_platform_std_vga(self, session, vm_ref):
         dom = XendDomain.instance().get_vm_by_uuid(vm_ref)

tools/python/xen/xend/XendDomainInfo.py

@@ -1655,7 +1655,13 @@ class XendDomainInfo:
     def get_memory_static_min(self):
         return self.info['memory']
     def get_vcpus_policy(self):
-        return '' # TODO
+        sched_id = xc.sched_id_get()
+        if sched_id == xen.lowlevel.xc.XEN_SCHEDULER_SEDF:
+            return 'sedf'
+        elif sched_id == xen.lowlevel.xc.XEN_SCHEDULER_CREDIT:
+            return 'credit'
+        else:
+            return 'unknown'
     def get_vcpus_params(self):
         return '' # TODO
     def get_power_state(self):

tools/python/xen/xend/XendStorageRepository.py

@@ -100,6 +100,7 @@ class XendStorageRepository:
         """
         self.lock.acquire()
         try:
+            # create directory if /var/lib/xend/storage does not exist
             if not os.path.exists(XEND_STORAGE_DIR):
                 os.makedirs(XEND_STORAGE_DIR)
                 os.chmod(XEND_STORAGE_DIR, 0700)
@@ -111,6 +112,8 @@ class XendStorageRepository:
                 if filename[-5:] == XEND_STORAGE_QCOW_FILENAME[-5:]:
                     image_uuid = filename[:-5]
                     seen_images.append(image_uuid)
+                    
+                    # add this image if we haven't seen it before
                     if image_uuid not in self.images:
                         qcow_file = XEND_STORAGE_QCOW_FILENAME % image_uuid
                         cfg_file = XEND_STORAGE_VDICFG_FILENAME % image_uuid