util: mdev: Introduce virMediatedDeviceType structure

This is later going to replace the existing virNodeDevCapMdevType, since:
1) it's going to couple related stuff in a single module
2) util is supposed to contain helpers that are widely accessible across
the whole repository.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

src/libvirt_private.syms

@@ -2181,6 +2181,7 @@ virMediatedDeviceModelTypeFromString;
 virMediatedDeviceModelTypeToString;
 virMediatedDeviceNew;
 virMediatedDeviceSetUsedBy;
+virMediatedDeviceTypeFree;
 
 
 

src/util/virmdev.c

@@ -483,3 +483,16 @@ virMediatedDeviceListMarkDevices(virMediatedDeviceListPtr dst,
     }
     goto cleanup;
 }
+
+
+void
+virMediatedDeviceTypeFree(virMediatedDeviceTypePtr type)
+{
+    if (!type)
+        return;
+
+    VIR_FREE(type->id);
+    VIR_FREE(type->name);
+    VIR_FREE(type->device_api);
+    VIR_FREE(type);
+}

src/util/virmdev.h

@@ -37,6 +37,15 @@ typedef virMediatedDevice *virMediatedDevicePtr;
 typedef struct _virMediatedDeviceList virMediatedDeviceList;
 typedef virMediatedDeviceList *virMediatedDeviceListPtr;
 
+typedef struct _virMediatedDeviceType virMediatedDeviceType;
+typedef virMediatedDeviceType *virMediatedDeviceTypePtr;
+struct _virMediatedDeviceType {
+    char *id;
+    char *name;
+    char *device_api;
+    unsigned int available_instances;
+};
+
 typedef int (*virMediatedDeviceCallback)(virMediatedDevicePtr dev,
                                          const char *path, void *opaque);
 
@@ -117,4 +126,7 @@ virMediatedDeviceListMarkDevices(virMediatedDeviceListPtr dst,
                                  virMediatedDeviceListPtr src,
                                  const char *drvname,
                                  const char *domname);
+
+void
+virMediatedDeviceTypeFree(virMediatedDeviceTypePtr type);
 #endif /* __VIR_MDEV_H__ */