API: discourage usage of non-ListAll APIs

They require the caller to provide the maximum number
of array elements upfront, leading to either incomplete
results or violations of the zero-one-infinity rule.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
This commit is contained in:
Ján Tomko 2020-10-05 00:20:27 +02:00
parent c7f3a1f787
commit fb234839a7
8 changed files with 34 additions and 16 deletions

View File

@ -381,8 +381,10 @@ virDomainSnapshotNum(virDomainPtr domain, unsigned int flags)
* snapshots were listed if the return is less than @nameslen. Likewise,
* you should be prepared for virDomainSnapshotLookupByName() to fail when
* converting a name from this call into a snapshot object, if another
* connection deletes the snapshot in the meantime. For more control over
* the results, see virDomainListAllSnapshots().
* connection deletes the snapshot in the meantime.
*
* The use of this function is discouraged. Instead, use
* virDomainListAllSnapshots().
*
* Returns the number of domain snapshots found or -1 in case of error.
* The caller is responsible to call free() for each member of the array.
@ -582,8 +584,10 @@ virDomainSnapshotNumChildren(virDomainSnapshotPtr snapshot, unsigned int flags)
* snapshots were listed if the return is less than @nameslen. Likewise,
* you should be prepared for virDomainSnapshotLookupByName() to fail when
* converting a name from this call into a snapshot object, if another
* connection deletes the snapshot in the meantime. For more control over
* the results, see virDomainSnapshotListAllChildren().
* connection deletes the snapshot in the meantime.
*
* The use of this function is discouraged. Instead, use
* virDomainSnapshotListAllChildren().
*
* Returns the number of domain snapshots found or -1 in case of error.
* The caller is responsible to call free() for each member of the array.

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@ -41,8 +41,8 @@ VIR_LOG_INIT("libvirt.domain");
*
* Collect the list of active domains, and store their IDs in array @ids
*
* For inactive domains, see virConnectListDefinedDomains(). For more
* control over the results, see virConnectListAllDomains().
* The use of this function is discouraged. Instead, use
* virConnectListAllDomains().
*
* Returns the number of domains found or -1 in case of error. Note that
* this command is inherently racy; a domain can be started between a
@ -6526,8 +6526,8 @@ virConnectNumOfDefinedDomains(virConnectPtr conn)
* list the defined but inactive domains, stores the pointers to the names
* in @names
*
* For active domains, see virConnectListDomains(). For more control over
* the results, see virConnectListAllDomains().
* The use of this function is discouraged. Instead, use
* virConnectListAllDomains().
*
* Returns the number of names provided in the array or -1 in case of error.
* Note that this command is inherently racy; a domain can be defined between

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@ -150,7 +150,8 @@ virConnectNumOfInterfaces(virConnectPtr conn)
* Collect the list of active physical host interfaces,
* and store their names in @names
*
* For more control over the results, see virConnectListAllInterfaces().
* The use of this function is discouraged. Instead, use
* virConnectListAllInterfaces().
*
* Returns the number of interfaces found or -1 in case of error. Note that
* this command is inherently racy; a interface can be started between a call
@ -227,7 +228,8 @@ virConnectNumOfDefinedInterfaces(virConnectPtr conn)
* Collect the list of defined (inactive) physical host interfaces,
* and store their names in @names.
*
* For more control over the results, see virConnectListAllInterfaces().
* The use of this function is discouraged. Instead, use
* virConnectListAllInterfaces().
*
* Returns the number of names provided in the array or -1 in case of error.
* Note that this command is inherently racy; a interface can be defined between

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@ -159,7 +159,8 @@ virConnectNumOfNetworks(virConnectPtr conn)
*
* Collect the list of active networks, and store their names in @names
*
* For more control over the results, see virConnectListAllNetworks().
* The use of this function is discouraged. Instead, use
* virConnectListAllNetworks().
*
* Returns the number of networks found or -1 in case of error. Note that
* this command is inherently racy; a network can be started between a call
@ -235,7 +236,8 @@ virConnectNumOfDefinedNetworks(virConnectPtr conn)
*
* list the inactive networks, stores the pointers to the names in @names
*
* For more control over the results, see virConnectListAllNetworks().
* The use of this function is discouraged. Instead, use
* virConnectListAllNetworks().
*
* Returns the number of names provided in the array or -1 in case of error.
* Note that this command is inherently racy; a network can be defined between

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@ -128,7 +128,8 @@ virConnectListAllNodeDevices(virConnectPtr conn,
*
* Collect the list of node devices, and store their names in @names
*
* For more control over the results, see virConnectListAllNodeDevices().
* The use of this function is discouraged. Instead, use
* virConnectListAllNodeDevices().
*
* If the optional 'cap' argument is non-NULL, then the count
* will be restricted to devices with the specified capability

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@ -117,6 +117,9 @@ virConnectListAllNWFilters(virConnectPtr conn,
*
* Collect the list of network filters, and store their names in @names
*
* The use of this function is discouraged. Instead, use
* virConnectListAllNWFilters().
*
* Returns the number of network filters found or -1 in case of error
*/
int

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@ -156,6 +156,9 @@ virConnectListAllSecrets(virConnectPtr conn,
*
* List UUIDs of defined secrets, store pointers to names in uuids.
*
* The use of this function is discouraged. Instead, use
* virConnectListAllSecrets().
*
* Returns the number of UUIDs provided in the array, or -1 on failure.
*/
int

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@ -179,7 +179,8 @@ virConnectNumOfStoragePools(virConnectPtr conn)
* If there are more than maxnames, the remaining names will be silently
* ignored.
*
* For more control over the results, see virConnectListAllStoragePools().
* The use of this function is discouraged. Instead, use
* virConnectListAllStoragePools().
*
* Returns the number of pools found or -1 in case of error. Note that
* this command is inherently racy; a pool can be started between a call to
@ -259,7 +260,8 @@ virConnectNumOfDefinedStoragePools(virConnectPtr conn)
* If there are more than maxnames, the remaining names will be silently
* ignored.
*
* For more control over the results, see virConnectListAllStoragePools().
* The use of this function is discouraged. Instead, use
* virConnectListAllStoragePools().
*
* Returns the number of names provided in the array or -1 in case of error.
* Note that this command is inherently racy; a pool can be defined between
@ -1254,7 +1256,8 @@ virStoragePoolNumOfVolumes(virStoragePoolPtr pool)
* Fetch list of storage volume names, limiting to
* at most maxnames.
*
* To list the volume objects directly, see virStoragePoolListAllVolumes().
* The use of this function is discouraged. Instead, use
* virStoragePoolListAllVolumes().
*
* Returns the number of names fetched, or -1 on error
*/