[PATCH 22/36] conf: storage_source: Introduce type for storing FDs associated for storage
For FD-passing of disk sources we'll need to keep the FDs around.
Introduce a data type helper based on a g_object so that we get
reference counting.
One instance will (due to security labelling) will need to be part of
the virStorageSource struct thus it's declared in the storage_source_conf
module.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/conf/storage_source_conf.c | 41 ++++++++++++++++++++++++++++++++++
src/conf/storage_source_conf.h | 17 ++++++++++++++
src/libvirt_private.syms | 1 +
3 files changed, 59 insertions(+)
diff --git a/src/conf/storage_source_conf.c b/src/conf/storage_source_conf.c
index 84df8d28fa..3fe8c4a900 100644
--- a/src/conf/storage_source_conf.c
+++ b/src/conf/storage_source_conf.c
@@ -28,6 +28,7 @@
#include "virerror.h"
#include "virlog.h"
#include "virstring.h"
+#include "virfile.h"
#define VIR_FROM_THIS VIR_FROM_STORAGE
@@ -1361,3 +1362,43 @@ virStorageSourceInitiatorClear(virStorageSourceInitiatorDef
*initiator)
{
VIR_FREE(initiator->iqn);
}
+
+G_DEFINE_TYPE(virStorageSourceFDTuple, vir_storage_source_fd_tuple, G_TYPE_OBJECT);
+
+static void
+vir_storage_source_fd_tuple_init(virStorageSourceFDTuple *fdt G_GNUC_UNUSED)
+{
+}
+
+
+static void
+virStorageSourceFDTupleFinalize(GObject *object)
+{
+ virStorageSourceFDTuple *fdt = VIR_STORAGE_SOURCE_FD_TUPLE(object);
+ size_t i;
+
+ if (!fdt)
+ return;
+
+ for (i = 0; i < fdt->nfds; i++)
+ VIR_FORCE_CLOSE(fdt->fds[i]);
+
+ g_free(fdt->fds);
+ G_OBJECT_CLASS(vir_storage_source_fd_tuple_parent_class)->finalize(object);
+}
+
+
+static void
+vir_storage_source_fd_tuple_class_init(virStorageSourceFDTupleClass *klass)
+{
+ GObjectClass *obj = G_OBJECT_CLASS(klass);
+
+ obj->finalize = virStorageSourceFDTupleFinalize;
+}
+
+
+virStorageSourceFDTuple *
+virStorageSourceFDTupleNew(void)
+{
+ return g_object_new(vir_storage_source_fd_tuple_get_type(), NULL);
+}
diff --git a/src/conf/storage_source_conf.h b/src/conf/storage_source_conf.h
index f2440cec6a..9cd1a0c137 100644
--- a/src/conf/storage_source_conf.h
+++ b/src/conf/storage_source_conf.h
@@ -258,6 +258,23 @@ struct _virStorageSourceSlice {
};
+struct _virStorageSourceFDTuple {
+ GObject parent;
+ int *fds;
+ size_t nfds;
+
+ bool writable;
+ bool tryRestoreLabel;
+
+ /* connection this FD tuple is associated with for auto-closing */
+ virConnect *conn;
+};
+G_DECLARE_FINAL_TYPE(virStorageSourceFDTuple, vir_storage_source_fd_tuple, VIR,
STORAGE_SOURCE_FD_TUPLE, GObject);
+
+virStorageSourceFDTuple *
+virStorageSourceFDTupleNew(void);
+
+
typedef struct _virStorageSource virStorageSource;
/* Stores information related to a host resource. In the case of backing
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index b81c2cc7da..ef88e2b49f 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1117,6 +1117,7 @@ virStorageSourceChainHasManagedPR;
virStorageSourceChainHasNVMe;
virStorageSourceClear;
virStorageSourceCopy;
+virStorageSourceFDTupleNew;
virStorageSourceGetActualType;
virStorageSourceGetSecurityLabelDef;
virStorageSourceHasBacking;
--
2.38.1