snapshot: rename an enum

The name 'virDomainDiskSnapshot' didn't fit in with our normal
conventions of using a prefix hinting that it is related to a
virDomainSnapshotPtr.  Also, a future patch will reuse the
enum for declaring where the VM memory is stored.

* src/conf/snapshot_conf.h (virDomainDiskSnapshot): Rename...
(virDomainSnapshotLocation): ...to this.
(_virDomainSnapshotDiskDef): Update clients.
* src/conf/domain_conf.h (_virDomainDiskDef): Likewise.
* src/libvirt_private.syms (domain_conf.h): Likewise.
* src/conf/domain_conf.c (virDomainDiskDefParseXML)
(virDomainDiskDefFormat): Likewise.
* src/conf/snapshot_conf.c: (virDomainSnapshotDiskDefParseXML)
(virDomainSnapshotAlignDisks, virDomainSnapshotDefFormat):
Likewise.
* src/qemu/qemu_driver.c (qemuDomainSnapshotDiskPrepare)
(qemuDomainSnapshotCreateSingleDiskActive)
(qemuDomainSnapshotCreateDiskActive, qemuDomainSnapshotCreateXML):
Likewise.

src/conf/domain_conf.c

@@ -3768,7 +3768,7 @@ virDomainDiskDefParseXML(virCapsPtr caps,
     }
 
     if (snapshot) {
-        def->snapshot = virDomainDiskSnapshotTypeFromString(snapshot);
+        def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
         if (def->snapshot <= 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("unknown disk snapshot setting '%s'"),
@@ -3776,7 +3776,7 @@ virDomainDiskDefParseXML(virCapsPtr caps,
             goto error;
         }
     } else if (def->readonly) {
-        def->snapshot = VIR_DOMAIN_DISK_SNAPSHOT_NO;
+        def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_NONE;
     }
 
     if (rawio) {
@@ -11369,9 +11369,9 @@ virDomainDiskDefFormat(virBufferPtr buf,
         }
     }
     if (def->snapshot &&
-        !(def->snapshot == VIR_DOMAIN_DISK_SNAPSHOT_NO && def->readonly))
+        !(def->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE && def->readonly))
         virBufferAsprintf(buf, " snapshot='%s'",
-                          virDomainDiskSnapshotTypeToString(def->snapshot));
+                          virDomainSnapshotLocationTypeToString(def->snapshot));
     virBufferAddLit(buf, ">\n");
 
     if (def->driverName || def->driverType || def->cachemode ||

src/conf/domain_conf.h

@@ -578,7 +578,7 @@ struct _virDomainDiskDef {
     int ioeventfd;
     int event_idx;
     int copy_on_read;
-    int snapshot; /* enum virDomainDiskSnapshot, snapshot_conf.h */
+    int snapshot; /* enum virDomainSnapshotLocation, snapshot_conf.h */
     int startupPolicy; /* enum virDomainStartupPolicy */
     unsigned int readonly : 1;
     unsigned int shared : 1;

src/conf/snapshot_conf.c

@@ -50,7 +50,7 @@
 
 #define VIR_FROM_THIS VIR_FROM_DOMAIN_SNAPSHOT
 
-VIR_ENUM_IMPL(virDomainDiskSnapshot, VIR_DOMAIN_DISK_SNAPSHOT_LAST,
+VIR_ENUM_IMPL(virDomainSnapshotLocation, VIR_DOMAIN_SNAPSHOT_LOCATION_LAST,
               "default",
               "no",
               "internal",
@@ -119,7 +119,7 @@ virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
 
     snapshot = virXMLPropString(node, "snapshot");
     if (snapshot) {
-        def->snapshot = virDomainDiskSnapshotTypeFromString(snapshot);
+        def->snapshot = virDomainSnapshotLocationTypeFromString(snapshot);
         if (def->snapshot <= 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR,
                            _("unknown disk snapshot setting '%s'"),
@@ -143,7 +143,7 @@ virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
     }
 
     if (!def->snapshot && (def->file || def->driverType))
-        def->snapshot = VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL;
+        def->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
 
     ret = 0;
 cleanup:
@@ -389,14 +389,16 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
             disk->snapshot = disk_snapshot;
         } else if (disk_snapshot && require_match &&
                    disk->snapshot != disk_snapshot) {
-            const char *tmp = virDomainDiskSnapshotTypeToString(disk_snapshot);
+            const char *tmp;
+
+            tmp = virDomainSnapshotLocationTypeToString(disk_snapshot);
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("disk '%s' must use snapshot mode '%s'"),
                            disk->name, tmp);
             goto cleanup;
         }
         if (disk->file &&
-            disk->snapshot != VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL) {
+            disk->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("file '%s' for disk '%s' requires "
                              "use of external snapshot mode"),
@@ -444,7 +446,7 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
     for (i = 0; i < def->ndisks; i++) {
         virDomainSnapshotDiskDefPtr disk = &def->disks[i];
 
-        if (disk->snapshot == VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL &&
+        if (disk->snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL &&
             !disk->file) {
             const char *original = def->dom->disks[i]->src;
             const char *tmp;
@@ -533,7 +535,7 @@ char *virDomainSnapshotDefFormat(const char *domain_uuid,
             virBufferEscapeString(&buf, "    <disk name='%s'", disk->name);
             if (disk->snapshot)
                 virBufferAsprintf(&buf, " snapshot='%s'",
-                                  virDomainDiskSnapshotTypeToString(disk->snapshot));
+                                  virDomainSnapshotLocationTypeToString(disk->snapshot));
             if (disk->file || disk->driverType) {
                 virBufferAddLit(&buf, ">\n");
                 if (disk->driverType)

src/conf/snapshot_conf.h

@@ -29,13 +29,13 @@
 
 /* Items related to snapshot state */
 
-enum virDomainDiskSnapshot {
-    VIR_DOMAIN_DISK_SNAPSHOT_DEFAULT = 0,
-    VIR_DOMAIN_DISK_SNAPSHOT_NO,
-    VIR_DOMAIN_DISK_SNAPSHOT_INTERNAL,
-    VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL,
+enum virDomainSnapshotLocation {
+    VIR_DOMAIN_SNAPSHOT_LOCATION_DEFAULT = 0,
+    VIR_DOMAIN_SNAPSHOT_LOCATION_NONE,
+    VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL,
+    VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL,
 
-    VIR_DOMAIN_DISK_SNAPSHOT_LAST
+    VIR_DOMAIN_SNAPSHOT_LOCATION_LAST
 };
 
 enum virDomainSnapshotState {
@@ -50,7 +50,7 @@ typedef virDomainSnapshotDiskDef *virDomainSnapshotDiskDefPtr;
 struct _virDomainSnapshotDiskDef {
     char *name; /* name matching the <target dev='...' of the domain */
     int index; /* index within snapshot->dom->disks that matches name */
-    int snapshot; /* enum virDomainDiskSnapshot */
+    int snapshot; /* enum virDomainSnapshotLocation */
     char *file; /* new source file when snapshot is external */
     char *driverType; /* file format type of new file */
 };
@@ -151,7 +151,7 @@ int virDomainListSnapshots(virDomainSnapshotObjListPtr snapshots,
                            virDomainSnapshotPtr **snaps,
                            unsigned int flags);
 
-VIR_ENUM_DECL(virDomainDiskSnapshot)
+VIR_ENUM_DECL(virDomainSnapshotLocation)
 VIR_ENUM_DECL(virDomainSnapshotState)
 
 #endif /* __SNAPSHOT_CONF_H */

src/libvirt_private.syms

@@ -341,8 +341,6 @@ virDomainDiskIoTypeToString;
 virDomainDiskPathByName;
 virDomainDiskRemove;
 virDomainDiskRemoveByName;
-virDomainDiskSnapshotTypeFromString;
-virDomainDiskSnapshotTypeToString;
 virDomainDiskTypeFromString;
 virDomainDiskTypeToString;
 virDomainEmulatorPinAdd;
@@ -485,6 +483,8 @@ virDomainSnapshotFindByName;
 virDomainSnapshotForEach;
 virDomainSnapshotForEachChild;
 virDomainSnapshotForEachDescendant;
+virDomainSnapshotLocationTypeFromString;
+virDomainSnapshotLocationTypeToString;
 virDomainSnapshotObjListGetNames;
 virDomainSnapshotObjListNum;
 virDomainSnapshotObjListRemove;

src/qemu/qemu_driver.c

@@ -10558,7 +10558,7 @@ qemuDomainSnapshotDiskPrepare(virDomainObjPtr vm, virDomainSnapshotDefPtr def,
         virDomainSnapshotDiskDefPtr disk = &def->disks[i];
 
         switch (disk->snapshot) {
-        case VIR_DOMAIN_DISK_SNAPSHOT_INTERNAL:
+        case VIR_DOMAIN_SNAPSHOT_LOCATION_INTERNAL:
             if (active) {
                 virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                                _("active qemu domains require external disk "
@@ -10578,7 +10578,7 @@ qemuDomainSnapshotDiskPrepare(virDomainObjPtr vm, virDomainSnapshotDefPtr def,
             found = true;
             break;
 
-        case VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL:
+        case VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL:
             if (!disk->driverType) {
                 if (!(disk->driverType = strdup("qcow2"))) {
                     virReportOOMError();
@@ -10610,10 +10610,10 @@ qemuDomainSnapshotDiskPrepare(virDomainObjPtr vm, virDomainSnapshotDefPtr def,
             external++;
             break;
 
-        case VIR_DOMAIN_DISK_SNAPSHOT_NO:
+        case VIR_DOMAIN_SNAPSHOT_LOCATION_NONE:
             break;
 
-        case VIR_DOMAIN_DISK_SNAPSHOT_DEFAULT:
+        case VIR_DOMAIN_SNAPSHOT_LOCATION_DEFAULT:
         default:
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("unexpected code path"));
@@ -10668,7 +10668,7 @@ qemuDomainSnapshotCreateSingleDiskActive(struct qemud_driver *driver,
     char *origdriver = NULL;
     bool need_unlink = false;
 
-    if (snap->snapshot != VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL) {
+    if (snap->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("unexpected code path"));
         return -1;
@@ -10919,7 +10919,7 @@ qemuDomainSnapshotCreateDiskActive(virConnectPtr conn,
     for (i = 0; i < snap->def->ndisks; i++) {
         virDomainDiskDefPtr persistDisk = NULL;
 
-        if (snap->def->disks[i].snapshot == VIR_DOMAIN_DISK_SNAPSHOT_NO)
+        if (snap->def->disks[i].snapshot == VIR_DOMAIN_SNAPSHOT_LOCATION_NONE)
             continue;
         if (vm->newDef) {
             int indx = virDomainDiskIndexByName(vm->newDef,
@@ -10949,7 +10949,8 @@ qemuDomainSnapshotCreateDiskActive(virConnectPtr conn,
             while (--i >= 0) {
                 virDomainDiskDefPtr persistDisk = NULL;
 
-                if (snap->def->disks[i].snapshot == VIR_DOMAIN_DISK_SNAPSHOT_NO)
+                if (snap->def->disks[i].snapshot ==
+                    VIR_DOMAIN_SNAPSHOT_LOCATION_NONE)
                     continue;
                 if (vm->newDef) {
                     int indx = virDomainDiskIndexByName(vm->newDef,
@@ -11178,7 +11179,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
         }
         if (def->state == VIR_DOMAIN_DISK_SNAPSHOT && def->dom) {
             if (virDomainSnapshotAlignDisks(def,
-                                            VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL,
+                                            VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL,
                                             false) < 0)
                 goto cleanup;
         }
@@ -11199,7 +11200,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
                 goto cleanup;
             }
             if (virDomainSnapshotAlignDisks(def,
-                                            VIR_DOMAIN_DISK_SNAPSHOT_EXTERNAL,
+                                            VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL,
                                             false) < 0)
                 goto cleanup;
             if (qemuDomainSnapshotDiskPrepare(vm, def, &flags) < 0)