[PATCH v2 01/24] network_conf: Introduce virNetworkObjListForEach

[Michal Privoznik <mprivozn@xxxxxxxxxx>]

This API will be used in the future to call passed callback over
each network object in the list. It's slightly different to its
virDomainObjListForEach counterpart, because virDomainObjList
uses a hash table to store domain object, while virNetworkObjList
uses an array.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
---
 src/conf/network_conf.c  | 27 +++++++++++++++++++++++++++
 src/conf/network_conf.h  |  6 ++++++
 src/libvirt_private.syms |  1 +
 3 files changed, 34 insertions(+)

diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index d0e7e1b..cb54e56 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -4290,3 +4290,30 @@ virNetworkObjListExport(virConnectPtr conn,
     VIR_FREE(tmp_nets);
     return ret;
 }
+
+/**
+ * virNetworkObjListForEach:
+ * @nets: a list of network objects
+ * @callback: function to call over each of object in the list
+ * @opaque: pointer to pass to the @callback
+ *
+ * Function iterates over the list of network objects and calls
+ * passed callback over each one of them.
+ *
+ * Returns: 0 on success, -1 otherwise.
+ */
+int
+virNetworkObjListForEach(virNetworkObjListPtr nets,
+                         virNetworkObjListIterator callback,
+                         void *opaque)
+{
+    int ret = 0;
+    size_t i = 0;
+
+    for (i = 0; i < nets->count; i++) {
+        if (callback(nets->objs[i], opaque) < 0)
+            ret = -1;
+    }
+
+    return ret;
+}
diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h
index 16aea99..749c7fb 100644
--- a/src/conf/network_conf.h
+++ b/src/conf/network_conf.h
@@ -445,6 +445,12 @@ int virNetworkObjListExport(virConnectPtr conn,
                             virNetworkObjListFilter filter,
                             unsigned int flags);
 
+typedef int (*virNetworkObjListIterator)(virNetworkObjPtr net,
+                                         void *opaque);
+
+int virNetworkObjListForEach(virNetworkObjListPtr nets,
+                             virNetworkObjListIterator callback,
+                             void *opaque);
 /* for testing */
 int
 virNetworkDefUpdateSection(virNetworkDefPtr def,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 13e0931..a7285d8 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -569,6 +569,7 @@ virNetworkObjFree;
 virNetworkObjGetPersistentDef;
 virNetworkObjIsDuplicate;
 virNetworkObjListExport;
+virNetworkObjListForEach;
 virNetworkObjListFree;
 virNetworkObjLock;
 virNetworkObjReplacePersistentDef;
-- 
2.0.5

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