Re: [PATCH v3 4/6] admin: Introduce virAdmServer structure

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On Mon, Nov 30, 2015 at 04:03:03PM +0100, Erik Skultety wrote:
This is the key structure of all management operations performed on the
daemon/clients. An admin client needs to be able to identify
another client (either admin or non-privileged client) to perform an
action on it. This identification includes a server the client is
connected to, thus a client-side representation of a server is needed.
---
include/libvirt/libvirt-admin.h |  4 ++++
src/admin/admin_protocol.x      |  8 ++++++++
src/datatypes.c                 | 36 ++++++++++++++++++++++++++++++++++++
src/datatypes.h                 | 34 ++++++++++++++++++++++++++++++++++
src/libvirt_admin_private.syms  |  3 +++
5 files changed, 85 insertions(+)

diff --git a/include/libvirt/libvirt-admin.h b/include/libvirt/libvirt-admin.h
index ab9df96..23420c7 100644
--- a/include/libvirt/libvirt-admin.h
+++ b/include/libvirt/libvirt-admin.h
@@ -42,6 +42,8 @@ extern "C" {
 */
typedef struct _virAdmConnect virAdmConnect;

+typedef struct _virAdmServer virAdmServer;
+
/**
 * virAdmConnectPtr:
 *
@@ -51,6 +53,8 @@ typedef struct _virAdmConnect virAdmConnect;
 */
typedef virAdmConnect *virAdmConnectPtr;

+typedef virAdmServer *virAdmServerPtr;
+

Some (even one-line) docstring would be nice since this is a public
header file.

diff --git a/src/datatypes.c b/src/datatypes.c
index c832d80..cfc0d06 100644
--- a/src/datatypes.c
+++ b/src/datatypes.c
@@ -61,10 +61,14 @@ static void virStoragePoolDispose(void *obj);

virClassPtr virAdmConnectClass;
virClassPtr virAdmConnectCloseCallbackDataClass;
+virClassPtr virAdmServerClass;

static void virAdmConnectDispose(void *obj);
static void virAdmConnectCloseCallbackDataDispose(void *obj);

+static void virAdmConnectDispose(void *obj);

Duplicated for no reason.

+static void virAdmServerDispose(void *obj);
+
static int
virDataTypesOnceInit(void)
{
@@ -92,6 +96,7 @@ virDataTypesOnceInit(void)
    DECLARE_CLASS(virStorageVol);
    DECLARE_CLASS(virStoragePool);

+    DECLARE_CLASS(virAdmServer);
    DECLARE_CLASS_LOCKABLE(virAdmConnect);
    DECLARE_CLASS_LOCKABLE(virAdmConnectCloseCallbackData);

@@ -859,3 +864,34 @@ virAdmConnectCloseCallbackDataDispose(void *obj)

    virObjectUnlock(cb_data);
}
+
+virAdmServerPtr
+virAdmGetServer(virAdmConnectPtr conn, const char *name)
+{
+    virAdmServerPtr ret = NULL;
+
+    if (virDataTypesInitialize() < 0)
+        goto error;
+
+    if (!(ret = virObjectNew(virAdmServerClass)))
+        goto error;
+    if (VIR_STRDUP(ret->name, name) < 0)
+        goto error;
+
+    ret->conn = virObjectRef(conn);
+
+    return ret;
+ error:
+    virObjectUnref(ret);
+    return NULL;
+}
+
+static void
+virAdmServerDispose(void *obj)
+{
+    virAdmServerPtr srv = obj;
+    VIR_DEBUG("release server %p %s", srv, srv->name);
+

Some labels for the values would be nice, at least single quotes.

+    VIR_FREE(srv->name);
+    virObjectUnref(srv->conn);
+}
diff --git a/src/datatypes.h b/src/datatypes.h
index 1b1777d..fc84ac6 100644
--- a/src/datatypes.h
+++ b/src/datatypes.h
@@ -42,6 +42,7 @@ extern virClassPtr virStorageVolClass;
extern virClassPtr virStoragePoolClass;

extern virClassPtr virAdmConnectClass;
+extern virClassPtr virAdmServerClass;

# define virCheckConnectReturn(obj, retval)                             \
    do {                                                                \
@@ -317,6 +318,26 @@ extern virClassPtr virAdmConnectClass;
        }                                                               \
    } while (0)

+# define virCheckAdmServerReturn(obj, retval)                           \
+    do {                                                                \
+        if (!virObjectIsClass(obj, virAdmServerClass)) {                \

You should check that obj->conn is virAdmConnectClass

+            virReportErrorHelper(VIR_FROM_THIS, VIR_ERR_INVALID_CONN,   \
+                                 __FILE__, __FUNCTION__, __LINE__,      \
+                                 __FUNCTION__);                         \
+            virDispatchError(NULL);                                     \
+            return retval;                                              \
+        }                                                               \
+    } while (0)
+# define virCheckAdmServerGoto(obj, label)                              \
+    do {                                                                \
+        if (!virObjectIsClass(obj, virAdmServerClass)) {                \

same here

But the thing I was wondering the most is, how would you call a public
function that will return virAdmServerPtr based on its name?  I hope
it's not virAdmGetServerFlags() =D  Anyway, that's just a joke.

ACK with those aforementioned things fixed.

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