[libvirt] [PATCH 1/4] Index hashes by UUID instead of name
Jiri Denemark
jdenemar at redhat.com
Thu Jun 17 14:45:26 UTC 2010
Per-connection hashes for domains, networks, storage pools and network
filter pools were indexed by names which was not the best choice. UUIDs
are better identifiers, so lets use them.
---
src/datatypes.c | 64 +++++++++++++++++++++++++++++++------------------------
1 files changed, 36 insertions(+), 28 deletions(-)
diff --git a/src/datatypes.c b/src/datatypes.c
index 88ad695..20b2d74 100644
--- a/src/datatypes.c
+++ b/src/datatypes.c
@@ -343,6 +343,7 @@ virUnrefConnect(virConnectPtr conn) {
virDomainPtr
virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virDomainPtr ret = NULL;
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) {
virLibConnError(VIR_ERR_INVALID_ARG, __FUNCTION__);
@@ -350,10 +351,9 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
}
virMutexLock(&conn->lock);
- /* TODO search by UUID first as they are better differentiators */
+ virUUIDFormat(uuid, uuidstr);
- ret = (virDomainPtr) virHashLookup(conn->domains, name);
- /* TODO check the UUID */
+ ret = (virDomainPtr) virHashLookup(conn->domains, uuidstr);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
@@ -373,7 +373,7 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
ret->snapshots = virHashCreate(20);
- if (virHashAddEntry(conn->domains, name, ret) < 0) {
+ if (virHashAddEntry(conn->domains, uuidstr, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to add domain to connection hash table"));
@@ -411,10 +411,12 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
static void
virReleaseDomain(virDomainPtr domain) {
virConnectPtr conn = domain->conn;
- DEBUG("release domain %p %s", domain, domain->name);
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
- /* TODO search by UUID first as they are better differentiators */
- if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) {
+ virUUIDFormat(domain->uuid, uuidstr);
+ DEBUG("release domain %p %s %s", domain, domain->name, uuidstr);
+
+ if (virHashRemoveEntry(conn->domains, uuidstr, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("domain missing from connection hash table"));
@@ -488,6 +490,7 @@ virUnrefDomain(virDomainPtr domain) {
virNetworkPtr
virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virNetworkPtr ret = NULL;
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) {
virLibConnError(VIR_ERR_INVALID_ARG, __FUNCTION__);
@@ -495,10 +498,9 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
}
virMutexLock(&conn->lock);
- /* TODO search by UUID first as they are better differentiators */
+ virUUIDFormat(uuid, uuidstr);
- ret = (virNetworkPtr) virHashLookup(conn->networks, name);
- /* TODO check the UUID */
+ ret = (virNetworkPtr) virHashLookup(conn->networks, uuidstr);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
@@ -516,7 +518,7 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
if (uuid != NULL)
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
- if (virHashAddEntry(conn->networks, name, ret) < 0) {
+ if (virHashAddEntry(conn->networks, uuidstr, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to add network to connection hash table"));
@@ -551,10 +553,12 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
static void
virReleaseNetwork(virNetworkPtr network) {
virConnectPtr conn = network->conn;
- DEBUG("release network %p %s", network, network->name);
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
- /* TODO search by UUID first as they are better differentiators */
- if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) {
+ virUUIDFormat(network->uuid, uuidstr);
+ DEBUG("release network %p %s %s", network, network->name, uuidstr);
+
+ if (virHashRemoveEntry(conn->networks, uuidstr, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("network missing from connection hash table"));
@@ -808,6 +812,7 @@ virUnrefInterface(virInterfacePtr iface) {
virStoragePoolPtr
virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virStoragePoolPtr ret = NULL;
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) {
virLibConnError(VIR_ERR_INVALID_ARG, __FUNCTION__);
@@ -815,10 +820,9 @@ virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uui
}
virMutexLock(&conn->lock);
- /* TODO search by UUID first as they are better differentiators */
+ virUUIDFormat(uuid, uuidstr);
- ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, name);
- /* TODO check the UUID */
+ ret = (virStoragePoolPtr) virHashLookup(conn->storagePools, uuidstr);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
@@ -836,7 +840,7 @@ virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uui
if (uuid != NULL)
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
- if (virHashAddEntry(conn->storagePools, name, ret) < 0) {
+ if (virHashAddEntry(conn->storagePools, uuidstr, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR,
"%s", _("failed to add storage pool to connection hash table"));
@@ -872,10 +876,12 @@ error:
static void
virReleaseStoragePool(virStoragePoolPtr pool) {
virConnectPtr conn = pool->conn;
- DEBUG("release pool %p %s", pool, pool->name);
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
- /* TODO search by UUID first as they are better differentiators */
- if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) {
+ virUUIDFormat(pool->uuid, uuidstr);
+ DEBUG("release pool %p %s %s", pool, pool->name, uuidstr);
+
+ if (virHashRemoveEntry(conn->storagePools, uuidstr, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pool missing from connection hash table"));
@@ -1421,6 +1427,7 @@ int virUnrefStream(virStreamPtr st) {
virNWFilterPtr
virGetNWFilter(virConnectPtr conn, const char *name, const unsigned char *uuid) {
virNWFilterPtr ret = NULL;
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
if ((!VIR_IS_CONNECT(conn)) || (name == NULL) || (uuid == NULL)) {
virLibConnError(VIR_ERR_INVALID_ARG, __FUNCTION__);
@@ -1428,10 +1435,9 @@ virGetNWFilter(virConnectPtr conn, const char *name, const unsigned char *uuid)
}
virMutexLock(&conn->lock);
- /* TODO search by UUID first as they are better differentiators */
+ virUUIDFormat(uuid, uuidstr);
- ret = (virNWFilterPtr) virHashLookup(conn->nwfilterPools, name);
- /* TODO check the UUID */
+ ret = (virNWFilterPtr) virHashLookup(conn->nwfilterPools, uuidstr);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
@@ -1449,7 +1455,7 @@ virGetNWFilter(virConnectPtr conn, const char *name, const unsigned char *uuid)
if (uuid != NULL)
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
- if (virHashAddEntry(conn->nwfilterPools, name, ret) < 0) {
+ if (virHashAddEntry(conn->nwfilterPools, uuidstr, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to add network filter pool to connection hash table"));
@@ -1485,10 +1491,12 @@ error:
static void
virReleaseNWFilterPool(virNWFilterPtr pool) {
virConnectPtr conn = pool->conn;
- DEBUG("release pool %p %s", pool, pool->name);
+ char uuidstr[VIR_UUID_STRING_BUFLEN];
- /* TODO search by UUID first as they are better differentiators */
- if (virHashRemoveEntry(conn->nwfilterPools, pool->name, NULL) < 0) {
+ virUUIDFormat(pool->uuid, uuidstr);
+ DEBUG("release pool %p %s %s", pool, pool->name, uuidstr);
+
+ if (virHashRemoveEntry(conn->nwfilterPools, uuidstr, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(VIR_ERR_INTERNAL_ERROR, "%s",
_("pool missing from connection hash table"));
--
1.7.1
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