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Implement disk volume deleting.

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This commit is contained in:
Cole Robinson 2008-09-16 16:46:08 +00:00
parent a82bd0784b
commit bf26cd8ecb
2 changed files with 61 additions and 13 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Tue Sep 16 12:43:00 EST 2008 Cole Robinson <crobinso@redhat.com>
* src/storack_backend_disk.c: Implement disk volume delete
Tue Sep 9 09:50:00 EST 2008 Cole Robinson <crobinso@redhat.com>
* src/xend_internal.c: fix reading vncdisplay from xend domain

70
src/storage_backend_disk.c
View File

@ -22,12 +22,16 @@
*/
#include <config.h>
#include <string.h>
#include "internal.h"
#include "storage_backend_disk.h"
#include "util.h"
#include "memory.h"
#define DEBUG(fmt,...) VIR_DEBUG(__FILE__, fmt, __VA_ARGS__)
#define DEBUG0(msg) VIR_DEBUG(__FILE__, "%s", msg)
enum {
VIR_STORAGE_POOL_DISK_DOS = 0,
VIR_STORAGE_POOL_DISK_DVH,
@ -419,13 +423,6 @@ virStorageBackendDiskBuildPool(virConnectPtr conn,
return 0;
}
static int
virStorageBackendDiskDeleteVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol,
unsigned int flags);
static int
virStorageBackendDiskCreateVol(virConnectPtr conn,
virStoragePoolObjPtr pool,
@ -489,14 +486,61 @@ virStorageBackendDiskCreateVol(virConnectPtr conn,
static int
virStorageBackendDiskDeleteVol(virConnectPtr conn,
virStoragePoolObjPtr pool ATTRIBUTE_UNUSED,
virStorageVolDefPtr vol ATTRIBUTE_UNUSED,
virStoragePoolObjPtr pool,
virStorageVolDefPtr vol,
unsigned int flags ATTRIBUTE_UNUSED)
{
/* delete a partition */
virStorageReportError(conn, VIR_ERR_NO_SUPPORT,
_("Disk pools are not yet supported"));
return -1;
char *part_num = NULL;
int n;
char devpath[PATH_MAX];
char *devname, *srcname;
if ((n = readlink(vol->target.path, devpath, sizeof(devpath))) < 0 &&
errno != EINVAL) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("Couldn't read volume target path '%s'. %s"),
vol->target.path, strerror(errno));
return -1;
} else if (n <= 0) {
strncpy(devpath, vol->target.path, PATH_MAX);
} else {
devpath[n] = '\0';
}
devname = basename(devpath);
srcname = basename(pool->def->source.devices[0].path);
DEBUG("devname=%s, srcname=%s", devname, srcname);
if (!STRPREFIX(devname, srcname)) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("Volume path '%s' did not start with parent "
"pool source device name."), devname);
return -1;
}
part_num = devname + strlen(srcname);
if (!part_num) {
virStorageReportError(conn, VIR_ERR_INTERNAL_ERROR,
_("cannot parse partition number from target "
"'%s'"), devname);
return -1;
}
/* eg parted /dev/sda rm 2 */
const char *prog[] = {
PARTED,
pool->def->source.devices[0].path,
"rm",
"--script",
part_num,
NULL,
};
if (virRun(conn, prog, NULL) < 0)
return -1;
return 0;
}