[libvirt] [PATCH RFC 09/40] conf: Introduce virDomainDiskByTarget

[Peter Krempa]

Introduce a simpler replacement for virDomainDiskByName when looking up
by disk target.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/conf/domain_conf.c   | 16 ++++++++++++++++
 src/conf/domain_conf.h   |  4 ++++
 src/libvirt_private.syms |  1 +
 3 files changed, 21 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 8b4e80fa8d..1fffd56a22 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -16931,6 +16931,22 @@ virDomainDiskByName(virDomainDefPtr def,
     return idx < 0 ? NULL : def->disks[idx];
 }

+
+virDomainDiskDefPtr
+virDomainDiskByTarget(virDomainDefPtr def,
+                      const char *dst)
+{
+    size_t i;
+
+    for (i = 0; i < def->ndisks; i++) {
+        if (STREQ(def->disks[i]->dst, dst))
+            return def->disks[i];
+    }
+
+    return NULL;
+}
+
+
 int virDomainDiskInsert(virDomainDefPtr def,
                         virDomainDiskDefPtr disk)
 {
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index ad8e88c2ee..690aa3c84b 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3162,6 +3162,10 @@ int virDomainDiskIndexByName(virDomainDefPtr def, const char *name,
 virDomainDiskDefPtr virDomainDiskByName(virDomainDefPtr def,
                                         const char *name,
                                         bool allow_ambiguous);
+virDomainDiskDefPtr
+virDomainDiskByTarget(virDomainDefPtr def,
+                      const char *dst);
+
 int virDomainDiskInsert(virDomainDefPtr def,
                         virDomainDiskDefPtr disk)
     G_GNUC_WARN_UNUSED_RESULT;
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index e6d40d1cbe..2379c1ed8b 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -330,6 +330,7 @@ virDomainDiskBackingStoreParse;
 virDomainDiskBusTypeToString;
 virDomainDiskByAddress;
 virDomainDiskByName;
+virDomainDiskByTarget;
 virDomainDiskCacheTypeFromString;
 virDomainDiskCacheTypeToString;
 virDomainDiskDefAssignAddress;
-- 
2.21.0