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Release conn lock before reporting errors (end)

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* src/datatypes.c: more cleanup, where lock must be released before
  calling error handling which tries to get it.
This commit is contained in:
Laine Stump 2009-07-22 19:22:41 +02:00 committed by Daniel Veillard
parent 335f6bc251
commit 647247740f
1 changed files with 82 additions and 51 deletions
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133
src/datatypes.c
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@ -270,11 +270,13 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
/* TODO check the UUID */
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
ret->name = strdup(name);
if (ret->name == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
@ -285,6 +287,7 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
if (virHashAddEntry(conn->domains, name, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("failed to add domain to connection hash table"));
goto error;
@ -299,7 +302,6 @@ virGetDomain(virConnectPtr conn, const char *name, const unsigned char *uuid) {
return(ret);
error:
virMutexUnlock(&conn->lock);
if (ret != NULL) {
VIR_FREE(ret->name);
VIR_FREE(ret);
@ -325,24 +327,28 @@ virReleaseDomain(virDomainPtr domain) {
DEBUG("release domain %p %s", domain, domain->name);
/* TODO search by UUID first as they are better differenciators */
if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0)
if (virHashRemoveEntry(conn->domains, domain->name, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("domain missing from connection hash table"));
conn = NULL;
}
domain->magic = -1;
domain->id = -1;
VIR_FREE(domain->name);
VIR_FREE(domain);
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
if (conn) {
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
}
virMutexUnlock(&conn->lock);
}
virMutexUnlock(&conn->lock);
}
@ -406,11 +412,13 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
/* TODO check the UUID */
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
ret->name = strdup(name);
if (ret->name == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
@ -420,6 +428,7 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
if (virHashAddEntry(conn->networks, name, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("failed to add network to connection hash table"));
goto error;
@ -431,7 +440,6 @@ virGetNetwork(virConnectPtr conn, const char *name, const unsigned char *uuid) {
return(ret);
error:
virMutexUnlock(&conn->lock);
if (ret != NULL) {
VIR_FREE(ret->name);
VIR_FREE(ret);
@ -457,23 +465,27 @@ virReleaseNetwork(virNetworkPtr network) {
DEBUG("release network %p %s", network, network->name);
/* TODO search by UUID first as they are better differenciators */
if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0)
if (virHashRemoveEntry(conn->networks, network->name, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("network missing from connection hash table"));
conn = NULL;
}
network->magic = -1;
VIR_FREE(network->name);
VIR_FREE(network);
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
if (conn) {
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
}
virMutexUnlock(&conn->lock);
}
virMutexUnlock(&conn->lock);
}
@ -714,11 +726,13 @@ virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uui
/* TODO check the UUID */
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
ret->name = strdup(name);
if (ret->name == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
@ -728,6 +742,7 @@ virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uui
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
if (virHashAddEntry(conn->storagePools, name, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("failed to add storage pool to connection hash table"));
goto error;
@ -739,7 +754,6 @@ virGetStoragePool(virConnectPtr conn, const char *name, const unsigned char *uui
return(ret);
error:
virMutexUnlock(&conn->lock);
if (ret != NULL) {
VIR_FREE(ret->name);
VIR_FREE(ret);
@ -766,23 +780,27 @@ virReleaseStoragePool(virStoragePoolPtr pool) {
DEBUG("release pool %p %s", pool, pool->name);
/* TODO search by UUID first as they are better differenciators */
if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0)
if (virHashRemoveEntry(conn->storagePools, pool->name, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("pool missing from connection hash table"));
conn = NULL;
}
pool->magic = -1;
VIR_FREE(pool->name);
VIR_FREE(pool);
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
if (conn) {
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
}
virMutexUnlock(&conn->lock);
}
virMutexUnlock(&conn->lock);
}
@ -845,16 +863,19 @@ virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const c
ret = (virStorageVolPtr) virHashLookup(conn->storageVols, key);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
ret->pool = strdup(pool);
if (ret->pool == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
ret->name = strdup(name);
if (ret->name == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
@ -864,6 +885,7 @@ virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const c
ret->conn = conn;
if (virHashAddEntry(conn->storageVols, key, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("failed to add storage vol to connection hash table"));
goto error;
@ -875,7 +897,6 @@ virGetStorageVol(virConnectPtr conn, const char *pool, const char *name, const c
return(ret);
error:
virMutexUnlock(&conn->lock);
if (ret != NULL) {
VIR_FREE(ret->name);
VIR_FREE(ret->pool);
@ -903,24 +924,28 @@ virReleaseStorageVol(virStorageVolPtr vol) {
DEBUG("release vol %p %s", vol, vol->name);
/* TODO search by UUID first as they are better differenciators */
if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0)
if (virHashRemoveEntry(conn->storageVols, vol->key, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("vol missing from connection hash table"));
conn = NULL;
}
vol->magic = -1;
VIR_FREE(vol->name);
VIR_FREE(vol->pool);
VIR_FREE(vol);
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
if (conn) {
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
}
virMutexUnlock(&conn->lock);
}
virMutexUnlock(&conn->lock);
}
@ -981,7 +1006,8 @@ virGetNodeDevice(virConnectPtr conn, const char *name)
ret = (virNodeDevicePtr) virHashLookup(conn->nodeDevices, name);
if (ret == NULL) {
if (VIR_ALLOC(ret) < 0) {
if (VIR_ALLOC(ret) < 0) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
@ -989,11 +1015,13 @@ virGetNodeDevice(virConnectPtr conn, const char *name)
ret->conn = conn;
ret->name = strdup(name);
if (ret->name == NULL) {
virMutexUnlock(&conn->lock);
virReportOOMError(conn);
goto error;
}
if (virHashAddEntry(conn->nodeDevices, name, ret) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("failed to add node dev to conn hash table"));
goto error;
@ -1005,7 +1033,6 @@ virGetNodeDevice(virConnectPtr conn, const char *name)
return(ret);
error:
virMutexUnlock(&conn->lock);
if (ret != NULL) {
VIR_FREE(ret->name);
VIR_FREE(ret);
@ -1031,24 +1058,28 @@ virReleaseNodeDevice(virNodeDevicePtr dev) {
virConnectPtr conn = dev->conn;
DEBUG("release dev %p %s", dev, dev->name);
if (virHashRemoveEntry(conn->nodeDevices, dev->name, NULL) < 0)
if (virHashRemoveEntry(conn->nodeDevices, dev->name, NULL) < 0) {
virMutexUnlock(&conn->lock);
virLibConnError(conn, VIR_ERR_INTERNAL_ERROR,
_("dev missing from connection hash table"));
conn = NULL;
}
dev->magic = -1;
VIR_FREE(dev->name);
VIR_FREE(dev->parent);
VIR_FREE(dev);
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
if (conn) {
DEBUG("unref connection %p %d", conn, conn->refs);
conn->refs--;
if (conn->refs == 0) {
virReleaseConnect(conn);
/* Already unlocked mutex */
return;
}
virMutexUnlock(&conn->lock);
}
virMutexUnlock(&conn->lock);
}