External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2025-01-09 06:25:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove use of interfacePrivateData from udev driver

Browse Source 
The udev driver can be implemented using global state instead
of the connect private data.
This commit is contained in:
Daniel P. Berrange 2014-11-17 17:09:00 +00:00
parent 60b966b378
commit d85f9f1a7e
1 changed files with 58 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
src/interface/interface_backend_udev.c
View File

@ -48,6 +48,8 @@ typedef enum {
VIR_UDEV_IFACE_ALL
} virUdevStatus;
static struct udev_iface_driver *driver;
static virInterfaceDef *udevGetIfaceDef(struct udev *udev, const char *name);
static const char *
@ -134,48 +136,21 @@ udevGetDevices(struct udev *udev, virUdevStatus status)
}
static virDrvOpenStatus
udevInterfaceOpen(virConnectPtr conn,
udevInterfaceOpen(virConnectPtr conn ATTRIBUTE_UNUSED,
virConnectAuthPtr auth ATTRIBUTE_UNUSED,
unsigned int flags)
{
struct udev_iface_driver *driverState = NULL;
virCheckFlags(VIR_CONNECT_RO, VIR_DRV_OPEN_ERROR);
if (VIR_ALLOC(driverState) < 0)
goto cleanup;
driverState->udev = udev_new();
if (!driverState->udev) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to create udev context"));
goto cleanup;
}
conn->interfacePrivateData = driverState;
if (!driver)
return VIR_DRV_OPEN_ERROR;
return VIR_DRV_OPEN_SUCCESS;
cleanup:
VIR_FREE(driverState);
return VIR_DRV_OPEN_ERROR;
}
static int
udevInterfaceClose(virConnectPtr conn)
udevInterfaceClose(virConnectPtr conn ATTRIBUTE_UNUSED)
{
struct udev_iface_driver *driverState;
if (conn->interfacePrivateData != NULL) {
driverState = conn->interfacePrivateData;
udev_unref(driverState->udev);
VIR_FREE(driverState);
}
conn->interfacePrivateData = NULL;
return 0;
}
@ -183,8 +158,7 @@ static int
udevNumOfInterfacesByStatus(virConnectPtr conn, virUdevStatus status,
virInterfaceObjListFilter filter)
{
struct udev_iface_driver *driverState = conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
struct udev_enumerate *enumerate = NULL;
struct udev_list_entry *devices;
struct udev_list_entry *dev_entry;
@ -237,8 +211,7 @@ udevListInterfacesByStatus(virConnectPtr conn,
virUdevStatus status,
virInterfaceObjListFilter filter)
{
struct udev_iface_driver *driverState = conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
struct udev_enumerate *enumerate = NULL;
struct udev_list_entry *devices;
struct udev_list_entry *dev_entry;
@ -353,7 +326,6 @@ udevConnectListAllInterfaces(virConnectPtr conn,
virInterfacePtr **ifaces,
unsigned int flags)
{
struct udev_iface_driver *driverState = conn->interfacePrivateData;
struct udev *udev;
struct udev_enumerate *enumerate = NULL;
struct udev_list_entry *devices;
@ -371,7 +343,7 @@ udevConnectListAllInterfaces(virConnectPtr conn,
return -1;
/* Grab a udev reference */
udev = udev_ref(driverState->udev);
udev = udev_ref(driver->udev);
/* List all interfaces in case we support more filter flags in the future */
enumerate = udevGetDevices(udev, VIR_UDEV_IFACE_ALL);
@ -483,8 +455,7 @@ udevConnectListAllInterfaces(virConnectPtr conn,
static virInterfacePtr
udevInterfaceLookupByName(virConnectPtr conn, const char *name)
{
struct udev_iface_driver *driverState = conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
struct udev_device *dev;
virInterfacePtr ret = NULL;
virInterfaceDefPtr def = NULL;
@ -517,8 +488,7 @@ udevInterfaceLookupByName(virConnectPtr conn, const char *name)
static virInterfacePtr
udevInterfaceLookupByMACString(virConnectPtr conn, const char *macstr)
{
struct udev_iface_driver *driverState = conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
struct udev_enumerate *enumerate = NULL;
struct udev_list_entry *dev_entry;
struct udev_device *dev;
@ -1141,8 +1111,7 @@ static char *
udevInterfaceGetXMLDesc(virInterfacePtr ifinfo,
unsigned int flags)
{
struct udev_iface_driver *driverState = ifinfo->conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
virInterfaceDef *ifacedef;
char *xmlstr = NULL;
@ -1173,8 +1142,7 @@ udevInterfaceGetXMLDesc(virInterfacePtr ifinfo,
static int
udevInterfaceIsActive(virInterfacePtr ifinfo)
{
struct udev_iface_driver *driverState = ifinfo->conn->interfacePrivateData;
struct udev *udev = udev_ref(driverState->udev);
struct udev *udev = udev_ref(driver->udev);
struct udev_device *dev;
virInterfaceDefPtr def = NULL;
int status = -1;
@ -1206,6 +1174,43 @@ udevInterfaceIsActive(virInterfacePtr ifinfo)
return status;
}
static int
udevStateInitialize(bool privileged ATTRIBUTE_UNUSED,
virStateInhibitCallback callback ATTRIBUTE_UNUSED,
void *opaque ATTRIBUTE_UNUSED)
{
int ret = -1;
if (VIR_ALLOC(driver) < 0)
goto cleanup;
driver->udev = udev_new();
if (!driver->udev) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to create udev context"));
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
static int
udevStateCleanup(void)
{
if (!driver)
return -1;
udev_unref(driver->udev);
VIR_FREE(driver);
return 0;
}
static virInterfaceDriver udevIfaceDriver = {
"udev",
.interfaceOpen = udevInterfaceOpen, /* 1.0.0 */
@ -1221,6 +1226,12 @@ static virInterfaceDriver udevIfaceDriver = {
.interfaceGetXMLDesc = udevInterfaceGetXMLDesc, /* 1.0.0 */
};
static virStateDriver interfaceStateDriver = {
.name = "udev",
.stateInitialize = udevStateInitialize,
.stateCleanup = udevStateCleanup,
};
int
udevIfaceRegister(void)
{
@ -1229,5 +1240,7 @@ udevIfaceRegister(void)
_("failed to register udev interface driver"));
return -1;
}
if (virRegisterStateDriver(&interfaceStateDriver) < 0)
return -1;
return 0;
}