Adding VM edition and screenshot

functions/fedit.py

@@ -0,0 +1,33 @@
+from config import *
+import base64
+
+#memory = Memory in Mo
+def set_memory(vm_name,memory_new):
+  dom = conn.lookupByName(vm_name)
+  dom.setMemory(memory_new)
+
+def set_vcpu(vm_name,vcpu_new):
+  dom = conn.lookupByName(vm_name)
+  dom.setVcpus(vcpu_new)
+
+def get_info_vm(vm_name):
+  dom = conn.lookupByName(vm_name)
+  state, maxmem, mem, cpus, cput = dom.info()
+  return state, maxmem, mem, cpus, cput
+
+def get_screenshot(vm_name):
+  dom = conn.lookupByName(vm_name)
+  stream = conn.newStream()
+  imageType = dom.screenshot(stream,0)
+  file = "tmp_screen_" + dom.name()
+  fileHandler = open(file, 'wb')
+  streamBytes = stream.recv(262120)
+  while streamBytes != b'':
+    fileHandler.write(streamBytes)
+    streamBytes = stream.recv(262120)
+  fileHandler.close()
+  stream.finish()
+  with open(file, "rb") as f:
+    data = base64.b64encode(f.read())
+  os.remove(file)
+  return data