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list: Use virConnectListAllStoragePools in virsh

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tools/virsh-pool.c:
  * vshStoragePoolSorter to sort the pool list by pool name.

  * struct vshStoragePoolList to present the pool list, pool info
    is collected by list->poolinfo if 'details' is specified by
    user.

  * vshStoragePoolListFree to free the pool list

  * vshStoragePoolListCollect to collect the pool list, new API
    virStorageListAllPools is tried first, if it's not supported,
    fall back to older APIs.

  * New options --persistent, --transient, --autostart, --no-autostart
    and --type for pool-list. --persistent or --transient is to filter
    the returned pool list by whether the pool is persistent or not.
    --autostart or --no-autostart is to filter the returned pool list
    by whether the pool is autostarting or not. --type is to filter
    the pools by pool types. E.g.

    % virsh pool-list --all --persistent --type dir,disk

tools/virsh.pod:
   * Add documentations for the new options.
This commit is contained in:
Osier Yang 2012-09-05 14:36:33 +08:00
parent fc122e1a40
commit 93a346d353
2 changed files with 361 additions and 103 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

440
tools/virsh-pool.c
View File

@ -36,6 +36,7 @@
#include "memory.h"
#include "util.h"
#include "xml.h"
#include "conf/storage_conf.h"
virStoragePoolPtr
vshCommandOptPoolBy(vshControl *ctl, const vshCmd *cmd, const char *optname,
@ -551,6 +552,232 @@ cmdPoolDumpXML(vshControl *ctl, const vshCmd *cmd)
return ret;
}
static int
vshStoragePoolSorter(const void *a, const void *b)
{
virStoragePoolPtr *pa = (virStoragePoolPtr *) a;
virStoragePoolPtr *pb = (virStoragePoolPtr *) b;
if (*pa && !*pb)
return -1;
if (!*pa)
return *pb != NULL;
return vshStrcasecmp(virStoragePoolGetName(*pa),
virStoragePoolGetName(*pb));
}
struct vshStoragePoolList {
virStoragePoolPtr *pools;
size_t npools;
};
typedef struct vshStoragePoolList *vshStoragePoolListPtr;
static void
vshStoragePoolListFree(vshStoragePoolListPtr list)
{
int i;
if (list && list->pools) {
for (i = 0; i < list->npools; i++) {
if (list->pools[i])
virStoragePoolFree(list->pools[i]);
}
VIR_FREE(list->pools);
}
VIR_FREE(list);
}
static vshStoragePoolListPtr
vshStoragePoolListCollect(vshControl *ctl,
unsigned int flags)
{
vshStoragePoolListPtr list = vshMalloc(ctl, sizeof(*list));
int i;
int ret;
char **names = NULL;
virStoragePoolPtr pool;
bool success = false;
size_t deleted = 0;
int persistent;
int autostart;
int nActivePools = 0;
int nInactivePools = 0;
int nAllPools = 0;
/* try the list with flags support (0.10.0 and later) */
if ((ret = virConnectListAllStoragePools(ctl->conn,
&list->pools,
flags)) >= 0) {
list->npools = ret;
goto finished;
}
/* check if the command is actually supported */
if (last_error && last_error->code == VIR_ERR_NO_SUPPORT) {
vshResetLibvirtError();
goto fallback;
}
if (last_error && last_error->code == VIR_ERR_INVALID_ARG) {
/* try the new API again but mask non-guaranteed flags */
unsigned int newflags = flags & (VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE |
VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE);
vshResetLibvirtError();
if ((ret = virConnectListAllStoragePools(ctl->conn, &list->pools,
newflags)) >= 0) {
list->npools = ret;
goto filter;
}
}
/* there was an error during the first or second call */
vshError(ctl, "%s", _("Failed to list pools"));
goto cleanup;
fallback:
/* fall back to old method (0.9.13 and older) */
vshResetLibvirtError();
/* There is no way to get the pool type */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_POOL_TYPE)) {
vshError(ctl, "%s", _("Filtering using --type is not supported "
"by this libvirt"));
goto cleanup;
}
/* Get the number of active pools */
if (!MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) ||
MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE)) {
if ((nActivePools = virConnectNumOfStoragePools(ctl->conn)) < 0) {
vshError(ctl, "%s", _("Failed to get the number of active pools "));
goto cleanup;
}
}
/* Get the number of inactive pools */
if (!MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) ||
MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE)) {
if ((nInactivePools = virConnectNumOfDefinedStoragePools(ctl->conn)) < 0) {
vshError(ctl, "%s", _("Failed to get the number of inactive pools"));
goto cleanup;
}
}
nAllPools = nActivePools + nInactivePools;
if (nAllPools == 0)
return list;
names = vshMalloc(ctl, sizeof(char *) * nAllPools);
/* Retrieve a list of active storage pool names */
if (!MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) ||
MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE)) {
if (virConnectListStoragePools(ctl->conn,
names, nActivePools) < 0) {
vshError(ctl, "%s", _("Failed to list active pools"));
goto cleanup;
}
}
/* Add the inactive storage pools to the end of the name list */
if (!MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_ACTIVE) ||
MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE)) {
if (virConnectListDefinedStoragePools(ctl->conn,
&names[nActivePools],
nInactivePools) < 0) {
vshError(ctl, "%s", _("Failed to list inactive pools"));
goto cleanup;
}
}
list->pools = vshMalloc(ctl, sizeof(virStoragePoolPtr) * (nAllPools));
list->npools = 0;
/* get active pools */
for (i = 0; i < nActivePools; i++) {
if (!(pool = virStoragePoolLookupByName(ctl->conn, names[i])))
continue;
list->pools[list->npools++] = pool;
}
/* get inactive pools */
for (i = 0; i < nInactivePools; i++) {
if (!(pool = virStoragePoolLookupByName(ctl->conn, names[i])))
continue;
list->pools[list->npools++] = pool;
}
/* truncate pools that weren't found */
deleted = nAllPools - list->npools;
filter:
/* filter list the list if the list was acquired by fallback means */
for (i = 0; i < list->npools; i++) {
pool = list->pools[i];
/* persistence filter */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_PERSISTENT)) {
if ((persistent = virStoragePoolIsPersistent(pool)) < 0) {
vshError(ctl, "%s", _("Failed to get pool persistence info"));
goto cleanup;
}
if (!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT) && persistent) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_TRANSIENT) && !persistent)))
goto remove_entry;
}
/* autostart filter */
if (MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_FILTERS_AUTOSTART)) {
if (virStoragePoolGetAutostart(pool, &autostart) < 0) {
vshError(ctl, "%s", _("Failed to get pool autostart state"));
goto cleanup;
}
if (!((MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_AUTOSTART) && autostart) ||
(MATCH(VIR_CONNECT_LIST_STORAGE_POOLS_NO_AUTOSTART) && !autostart)))
goto remove_entry;
}
/* the pool matched all filters, it may stay */
continue;
remove_entry:
/* the pool has to be removed as it failed one of the filters */
virStoragePoolFree(list->pools[i]);
list->pools[i] = NULL;
deleted++;
}
finished:
/* sort the list */
if (list->pools && list->npools)
qsort(list->pools, list->npools,
sizeof(*list->pools), vshStoragePoolSorter);
/* truncate the list if filter simulation deleted entries */
if (deleted)
VIR_SHRINK_N(list->pools, list->npools, deleted);
success = true;
cleanup:
for (i = 0; i < nAllPools; i++)
VIR_FREE(names[i]);
if (!success) {
vshStoragePoolListFree(list);
list = NULL;
}
VIR_FREE(names);
return list;
}
/*
* "pool-list" command
*/
@ -563,6 +790,11 @@ static const vshCmdInfo info_pool_list[] = {
static const vshCmdOptDef opts_pool_list[] = {
{"inactive", VSH_OT_BOOL, 0, N_("list inactive pools")},
{"all", VSH_OT_BOOL, 0, N_("list inactive & active pools")},
{"transient", VSH_OT_BOOL, 0, N_("list transient pools")},
{"persistent", VSH_OT_BOOL, 0, N_("list persistent pools")},
{"autostart", VSH_OT_BOOL, 0, N_("list pools with autostart enabled")},
{"no-autostart", VSH_OT_BOOL, 0, N_("list pools with autostart disabled")},
{"type", VSH_OT_STRING, 0, N_("only list pool of specified type(s) (if supported)")},
{"details", VSH_OT_BOOL, 0, N_("display extended details for pools")},
{NULL, 0, 0, NULL}
};
@ -571,10 +803,8 @@ static bool
cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
virStoragePoolInfo info;
char **poolNames = NULL;
int i, ret;
bool functionReturn;
int numActivePools = 0, numInactivePools = 0, numAllPools = 0;
bool functionReturn = false;
size_t stringLength = 0, nameStrLength = 0;
size_t autostartStrLength = 0, persistStrLength = 0;
size_t stateStrLength = 0, capStrLength = 0;
@ -588,80 +818,99 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
char *available;
};
struct poolInfoText *poolInfoTexts = NULL;
/* Determine the options passed by the user */
bool all = vshCommandOptBool(cmd, "all");
unsigned int flags = VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE;
vshStoragePoolListPtr list = NULL;
const char *type = NULL;
bool details = vshCommandOptBool(cmd, "details");
bool inactive = vshCommandOptBool(cmd, "inactive");
bool active = !inactive || all;
inactive |= all;
bool inactive, all;
/* Retrieve the number of active storage pools */
if (active) {
numActivePools = virConnectNumOfStoragePools(ctl->conn);
if (numActivePools < 0) {
vshError(ctl, "%s", _("Failed to list active pools"));
return false;
}
inactive = vshCommandOptBool(cmd, "inactive");
all = vshCommandOptBool(cmd, "all");
if (inactive)
flags = VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE;
if (all)
flags = VIR_CONNECT_LIST_STORAGE_POOLS_ACTIVE |
VIR_CONNECT_LIST_STORAGE_POOLS_INACTIVE;
if (vshCommandOptBool(cmd, "autostart"))
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_AUTOSTART;
if (vshCommandOptBool(cmd, "no-autostart"))
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_NO_AUTOSTART;
if (vshCommandOptBool(cmd, "persistent"))
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_PERSISTENT;
if (vshCommandOptBool(cmd, "transient"))
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_TRANSIENT;
if (vshCommandOptString(cmd, "type", &type) < 0) {
vshError(ctl, "%s", _("Invalid argument for 'type'"));
return false;
}
/* Retrieve the number of inactive storage pools */
if (inactive) {
numInactivePools = virConnectNumOfDefinedStoragePools(ctl->conn);
if (numInactivePools < 0) {
vshError(ctl, "%s", _("Failed to list inactive pools"));
return false;
if (type) {
int poolType = -1;
char **poolTypes = NULL;
int npoolTypes = 0;
npoolTypes = vshStringToArray((char *)type, &poolTypes);
for (i = 0; i < npoolTypes; i++) {
if ((poolType = virStoragePoolTypeFromString(poolTypes[i])) < 0) {
vshError(ctl, "%s", _("Invalid pool type"));
VIR_FREE(poolTypes);
return false;
}
switch(poolType) {
case VIR_STORAGE_POOL_DIR:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_DIR;
break;
case VIR_STORAGE_POOL_FS:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_FS;
break;
case VIR_STORAGE_POOL_NETFS:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_NETFS;
break;
case VIR_STORAGE_POOL_LOGICAL:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_LOGICAL;
break;
case VIR_STORAGE_POOL_DISK:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_DISK;
break;
case VIR_STORAGE_POOL_ISCSI:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_ISCSI;
break;
case VIR_STORAGE_POOL_SCSI:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_SCSI;
break;
case VIR_STORAGE_POOL_MPATH:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_MPATH;
break;
case VIR_STORAGE_POOL_RBD:
flags |= VIR_CONNECT_LIST_STORAGE_POOLS_RBD;
break;
default:
break;
}
}
VIR_FREE(poolTypes);
}
/* Determine the total number of pools to list */
numAllPools = numActivePools + numInactivePools;
if (!(list = vshStoragePoolListCollect(ctl, flags)))
goto cleanup;
/* Allocate memory for arrays of storage pool names and info */
poolNames = vshCalloc(ctl, numAllPools, sizeof(*poolNames));
poolInfoTexts =
vshCalloc(ctl, numAllPools, sizeof(*poolInfoTexts));
/* Retrieve a list of active storage pool names */
if (active) {
if (virConnectListStoragePools(ctl->conn,
poolNames, numActivePools) < 0) {
vshError(ctl, "%s", _("Failed to list active pools"));
VIR_FREE(poolInfoTexts);
VIR_FREE(poolNames);
return false;
}
}
/* Add the inactive storage pools to the end of the name list */
if (inactive) {
if (virConnectListDefinedStoragePools(ctl->conn,
&poolNames[numActivePools],
numInactivePools) < 0) {
vshError(ctl, "%s", _("Failed to list inactive pools"));
VIR_FREE(poolInfoTexts);
VIR_FREE(poolNames);
return false;
}
}
/* Sort the storage pool names */
qsort(poolNames, numAllPools, sizeof(*poolNames), vshNameSorter);
poolInfoTexts = vshCalloc(ctl, list->npools, sizeof(*poolInfoTexts));
/* Collect the storage pool information for display */
for (i = 0; i < numAllPools; i++) {
for (i = 0; i < list->npools; i++) {
int autostart = 0, persistent = 0;
/* Retrieve a pool object, looking it up by name */
virStoragePoolPtr pool = virStoragePoolLookupByName(ctl->conn,
poolNames[i]);
if (!pool) {
VIR_FREE(poolNames[i]);
continue;
}
/* Retrieve the autostart status of the pool */
if (virStoragePoolGetAutostart(pool, &autostart) < 0)
if (virStoragePoolGetAutostart(list->pools[i], &autostart) < 0)
poolInfoTexts[i].autostart = vshStrdup(ctl, _("no autostart"));
else
poolInfoTexts[i].autostart = vshStrdup(ctl, autostart ?
@ -669,7 +918,7 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
/* Retrieve the persistence status of the pool */
if (details) {
persistent = virStoragePoolIsPersistent(pool);
persistent = virStoragePoolIsPersistent(list->pools[i]);
vshDebug(ctl, VSH_ERR_DEBUG, "Persistent flag value: %d\n",
persistent);
if (persistent < 0)
@ -685,7 +934,7 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
}
/* Collect further extended information about the pool */
if (virStoragePoolGetInfo(pool, &info) != 0) {
if (virStoragePoolGetInfo(list->pools[i], &info) != 0) {
/* Something went wrong retrieving pool info, cope with it */
vshError(ctl, "%s", _("Could not retrieve pool information"));
poolInfoTexts[i].state = vshStrdup(ctl, _("unknown"));
@ -727,28 +976,25 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
val = vshPrettyCapacity(info.capacity, &unit);
ret = virAsprintf(&poolInfoTexts[i].capacity,
"%.2lf %s", val, unit);
if (ret < 0) {
if (ret < 0)
/* An error occurred creating the string, return */
goto asprintf_failure;
}
/* Create the allocation output string */
val = vshPrettyCapacity(info.allocation, &unit);
ret = virAsprintf(&poolInfoTexts[i].allocation,
"%.2lf %s", val, unit);
if (ret < 0) {
if (ret < 0)
/* An error occurred creating the string, return */
goto asprintf_failure;
}
/* Create the available space output string */
val = vshPrettyCapacity(info.available, &unit);
ret = virAsprintf(&poolInfoTexts[i].available,
"%.2lf %s", val, unit);
if (ret < 0) {
if (ret < 0)
/* An error occurred creating the string, return */
goto asprintf_failure;
}
} else {
/* Capacity related information isn't available */
poolInfoTexts[i].capacity = vshStrdup(ctl, _("-"));
@ -772,16 +1018,16 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
availStrLength = stringLength;
} else {
/* --details option was not specified, only active/inactive
* state strings are used */
if (info.state == VIR_STORAGE_POOL_INACTIVE)
poolInfoTexts[i].state = vshStrdup(ctl, _("inactive"));
else
* state strings are used */
if (virStoragePoolIsActive(list->pools[i]))
poolInfoTexts[i].state = vshStrdup(ctl, _("active"));
}
else
poolInfoTexts[i].state = vshStrdup(ctl, _("inactive"));
}
}
/* Keep the length of name string if longest so far */
stringLength = strlen(poolNames[i]);
stringLength = strlen(virStoragePoolGetName(list->pools[i]));
if (stringLength > nameStrLength)
nameStrLength = stringLength;
@ -794,9 +1040,6 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
stringLength = strlen(poolInfoTexts[i].autostart);
if (stringLength > autostartStrLength)
autostartStrLength = stringLength;
/* Free the pool object */
virStoragePoolFree(pool);
}
/* If the --details option wasn't selected, we output the pool
@ -812,9 +1055,10 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
vshPrintExtra(ctl, "-----------------------------------------\n");
/* Output old style pool info */
for (i = 0; i < numAllPools; i++) {
for (i = 0; i < list->npools; i++) {
const char *name = virStoragePoolGetName(list->pools[i]);
vshPrint(ctl, "%-20s %-10s %-10s\n",
poolNames[i],
name,
poolInfoTexts[i].state,
poolInfoTexts[i].autostart);
}
@ -906,9 +1150,9 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
vshPrintExtra(ctl, "\n");
/* Display the pool info rows */
for (i = 0; i < numAllPools; i++) {
for (i = 0; i < list->npools; i++) {
vshPrint(ctl, outputStr,
poolNames[i],
virStoragePoolGetName(list->pools[i]),
poolInfoTexts[i].state,
poolInfoTexts[i].autostart,
poolInfoTexts[i].persistent,
@ -922,7 +1166,6 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
goto cleanup;
asprintf_failure:
/* Display an appropriate error message then cleanup and return */
switch (errno) {
case ENOMEM:
@ -936,24 +1179,19 @@ asprintf_failure:
functionReturn = false;
cleanup:
/* Safely free the memory allocated in this function */
for (i = 0; i < numAllPools; i++) {
/* Cleanup the memory for one pool info structure */
VIR_FREE(poolInfoTexts[i].state);
VIR_FREE(poolInfoTexts[i].autostart);
VIR_FREE(poolInfoTexts[i].persistent);
VIR_FREE(poolInfoTexts[i].capacity);
VIR_FREE(poolInfoTexts[i].allocation);
VIR_FREE(poolInfoTexts[i].available);
VIR_FREE(poolNames[i]);
if (list && list->npools) {
for (i = 0; i < list->npools; i++) {
VIR_FREE(poolInfoTexts[i].state);
VIR_FREE(poolInfoTexts[i].autostart);
VIR_FREE(poolInfoTexts[i].persistent);
VIR_FREE(poolInfoTexts[i].capacity);
VIR_FREE(poolInfoTexts[i].allocation);
VIR_FREE(poolInfoTexts[i].available);
}
}
/* Cleanup the memory for the initial arrays*/
VIR_FREE(poolInfoTexts);
VIR_FREE(poolNames);
/* Return the desired value */
vshStoragePoolListFree(list);
return functionReturn;
}

24
tools/virsh.pod
View File

@ -2186,13 +2186,33 @@ variables, and defaults to C<vi>.
Returns basic information about the I<pool> object.
=item B<pool-list> [I<--inactive> | I<--all>] [I<--details>]
=item B<pool-list> [I<--inactive>] [I<--all>]
[I<--persistent>] [I<--transient>]
[I<--autostart>] [I<--no-autostart>]
[[I<--details>] [<type>]
List pool objects known to libvirt. By default, only active pools
are listed; I<--inactive> lists just the inactive pools, and I<--all>
lists all pools. The I<--details> option instructs virsh to additionally
lists all pools.
Except the default, I<--inactive>, and I<--all>, you may want to specify more
filtering flags. I<--persistent> is to list the persistent pools, I<--transient>
is to list the transient pools. I<--autostart> is to list the autostarting pools,
I<--no-autostart> is to list the pools with autostarting disabled.
You may also want to list pools with specified types using I<type>, the
pool types must be separated by comma, e.g. --type dir,disk. The valid pool
types include 'dir', 'fs', 'netfs', 'logical', 'disk', 'iscsi', 'scsi',
'mpath', 'rbd', and 'sheepdog'.
The I<--details> option instructs virsh to additionally
display pool persistence and capacity related information where available.
NOTE: When talking to older servers, this command is forced to use a series of
API calls with an inherent race, where a pool might not be listed or might appear
more than once if it changed state between calls while the list was being
collected. Newer servers do not have this problem.
=item B<pool-name> I<uuid>
Convert the I<uuid> to a pool name.