[Libvir] RFC: PATCH 4/5: make test driver thread safe
Daniel P. Berrange
berrange at redhat.com
Sat Jan 5 01:10:57 UTC 2008
The current test driver keeps all its state in memory and is
not thread safe. Since background jobs will need to access
state from a thread periodically we need to make the test
driver thread safe. This is done with 2 levels of locking
- A global driver lock.
- A per-connection lock
Before taking the per-connection lock, the global driver lock
must be acquired. The driver lock can be released the moment
the connection lock is acquired. The connection lock must be
held for the duration of all driver methods which are accessing
the 'struct testConn' or 'struct testDom' or 'struct testNet'
data.
To keep this reasonably unobtrusive, the GET_CONNECT, and
GET_DOMAIN / GET_NETWORK macros have been altered to do the
neccessary lock acquisition. The RELEASE_DOMAIN and RELEASE_NETWORL
macros are new, and must be used prior to returning from any
driver method so that mutex are released.
This is a fairly coarse level of locking, but effective enough
for the test driver which is not performance critical - merely
safety critical.
This model should apply reasonably safely to the QEMU driver
too, though we may wish to make it finer grained.
test.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------
1 file changed, 214 insertions(+), 31 deletions(-)
Dan
diff -r d56f1d6ccb4a src/test.c
--- a/src/test.c Fri Jan 04 17:48:15 2008 -0500
+++ b/src/test.c Fri Jan 04 17:52:09 2008 -0500
@@ -37,12 +37,31 @@
#include <unistd.h>
#include <net/if.h>
#include <netinet/in.h>
+#include <pthread.h>
#include "internal.h"
#include "test.h"
#include "xml.h"
#include "buf.h"
#include "uuid.h"
+#include "job.h"
+
+
+/**
+ * Description of thread locking requirements:
+ *
+ * Locks on objects:
+ *
+ * - Global driver lock
+ * - Per connection lock
+ *
+ * If we wanted better granularity we could lock per-domain but
+ * that's overkill for now
+ *
+ * The driver lock must be held before acquiring a connection lock
+ *
+ * The GET / RELEASE macros should be used for this
+ */
/* Flags that determine the action to take on a shutdown or crash of a domain
*/
@@ -106,6 +125,7 @@ typedef struct _testNet *testNetPtr;
#define MAX_NETWORKS 20
struct _testConn {
+ pthread_mutex_t lock;
char path[PATH_MAX];
int nextDomID;
virNodeInfo nodeInfo;
@@ -117,6 +137,8 @@ typedef struct _testConn testConn;
typedef struct _testConn testConn;
typedef struct _testConn *testConnPtr;
+static pthread_mutex_t driverLock = PTHREAD_MUTEX_INITIALIZER;
+
#define TEST_MODEL "i686"
#define TEST_MODEL_WORDSIZE "32"
@@ -131,36 +153,62 @@ static const virNodeInfo defaultNodeInfo
2,
};
+/* Must call RELEASE_DOMAIN after this before returning */
#define GET_DOMAIN(dom, ret) \
int domidx; \
testConnPtr privconn; \
testDomPtr privdom; \
\
+ pthread_mutex_lock(&driverLock); \
privconn = (testConnPtr)dom->conn->privateData; \
- if ((domidx = getDomainIndex(dom)) < 0) { \
+ pthread_mutex_lock(&privconn->lock); \
+ pthread_mutex_unlock(&driverLock); \
+ if ((domidx = getDomainIndex(privconn, dom)) < 0) { \
testError((dom)->conn, (dom), NULL, VIR_ERR_INVALID_ARG, \
__FUNCTION__); \
+ pthread_mutex_unlock(&privconn->lock); \
return (ret); \
} \
privdom = &privconn->domains[domidx];
+/* Must call RELEASE_NETWORK after this before returning */
#define GET_NETWORK(net, ret) \
int netidx; \
testConnPtr privconn; \
testNetPtr privnet; \
\
+ pthread_mutex_lock(&driverLock); \
privconn = (testConnPtr)net->conn->privateData; \
- if ((netidx = getNetworkIndex(net)) < 0) { \
+ pthread_mutex_lock(&privconn->lock); \
+ pthread_mutex_unlock(&driverLock); \
+ if ((netidx = getNetworkIndex(privconn, net)) < 0) { \
testError((net)->conn, NULL, (net), VIR_ERR_INVALID_ARG, \
__FUNCTION__); \
+ pthread_mutex_unlock(&privconn->lock); \
return (ret); \
} \
privnet = &privconn->networks[netidx];
+/* Must call RELEASE_CONNECTION after this before returning */
#define GET_CONNECTION(conn, ret) \
testConnPtr privconn; \
\
- privconn = (testConnPtr)conn->privateData;
+ pthread_mutex_lock(&driverLock); \
+ privconn = (testConnPtr)conn->privateData; \
+ pthread_mutex_lock(&privconn->lock); \
+ pthread_mutex_unlock(&driverLock);
+
+/* To be called after GET_CONNECTIOn */
+#define RELEASE_CONNECTION() \
+ pthread_mutex_unlock(&privconn->lock)
+
+/* To be called after GET_NETWORK */
+#define RELEASE_NETWORK() \
+ pthread_mutex_unlock(&privconn->lock)
+
+/* To be called after GET_DOMAIN */
+#define RELEASE_DOMAIN() \
+ pthread_mutex_unlock(&privconn->lock)
static void
@@ -230,6 +278,7 @@ static int testLoadDomain(virConnectPtr
if (gettimeofday(&tv, NULL) < 0) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, _("getting time of day"));
+ RELEASE_CONNECTION();
return (-1);
}
@@ -327,7 +376,7 @@ static int testLoadDomain(virConnectPtr
}
}
if (handle < 0)
- return (-1);
+ goto error;
privconn->domains[handle].active = 1;
privconn->domains[handle].id = domid;
@@ -351,11 +400,13 @@ static int testLoadDomain(virConnectPtr
privconn->domains[handle].onPoweroff = onPoweroff;
privconn->domains[handle].onCrash = onCrash;
+ RELEASE_CONNECTION();
return (handle);
error:
if (name)
free(name);
+ RELEASE_CONNECTION();
return (-1);
}
@@ -488,7 +539,7 @@ static int testLoadNetwork(virConnectPtr
}
}
if (handle < 0)
- return (-1);
+ goto error;
privconn->networks[handle].active = 1;
privconn->networks[handle].running = 1;
@@ -522,6 +573,8 @@ static int testLoadNetwork(virConnectPtr
strncpy(privconn->networks[handle].dhcpEnd, dhcpend, sizeof(privconn->networks[handle].dhcpEnd)-1);
privconn->networks[handle].dhcpEnd[sizeof(privconn->networks[handle].dhcpEnd)-1] = '\0';
free(dhcpend);
+
+ RELEASE_CONNECTION();
return (handle);
error:
@@ -535,6 +588,7 @@ static int testLoadNetwork(virConnectPtr
free(dhcpend);
if (name)
free(name);
+ RELEASE_CONNECTION();
return (-1);
}
@@ -669,7 +723,7 @@ static int testOpenFromFile(virConnectPt
char *str;
xmlDocPtr xml = NULL;
xmlNodePtr root = NULL;
- xmlNodePtr *domains, *networks = NULL;
+ xmlNodePtr *domains = NULL, *networks = NULL;
xmlXPathContextPtr ctxt = NULL;
virNodeInfoPtr nodeInfo;
testConnPtr privconn = malloc(sizeof(testConn));
@@ -851,9 +905,8 @@ static int testOpenFromFile(virConnectPt
return VIR_DRV_OPEN_ERROR;
}
-static int getDomainIndex(virDomainPtr domain) {
+static int getDomainIndex(testConnPtr privconn, virDomainPtr domain) {
int i;
- GET_CONNECTION(domain->conn, -1);
for (i = 0 ; i < MAX_DOMAINS ; i++) {
if (domain->id >= 0) {
@@ -867,9 +920,8 @@ static int getDomainIndex(virDomainPtr d
return (-1);
}
-static int getNetworkIndex(virNetworkPtr network) {
+static int getNetworkIndex(testConnPtr privconn, virNetworkPtr network) {
int i;
- GET_CONNECTION(network->conn, -1);
for (i = 0 ; i < MAX_NETWORKS ; i++) {
if (STREQ(network->name, privconn->networks[i].name))
@@ -956,8 +1008,10 @@ static char * testGetURI (virConnectPtr
if (asprintf (&uri, "test://%s", privconn->path) == -1) {
testError (conn, NULL, NULL, VIR_ERR_SYSTEM_ERROR, strerror (errno));
+ RELEASE_CONNECTION();
return NULL;
}
+ RELEASE_CONNECTION();
return uri;
}
@@ -972,6 +1026,7 @@ static int testNodeGetInfo(virConnectPtr
{
GET_CONNECTION(conn, -1);
memcpy(info, &privconn->nodeInfo, sizeof(virNodeInfo));
+ RELEASE_CONNECTION();
return (0);
}
@@ -1022,6 +1077,7 @@ static int testNumOfDomains(virConnectPt
continue;
numActive++;
}
+ RELEASE_CONNECTION();
return (numActive);
}
@@ -1035,22 +1091,30 @@ testDomainCreateLinux(virConnectPtr conn
if (xmlDesc == NULL) {
testError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ RELEASE_CONNECTION();
return (NULL);
}
if (privconn->numDomains == MAX_DOMAINS) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, _("too many domains"));
+ RELEASE_CONNECTION();
return (NULL);
}
domid = privconn->nextDomID++;
- if ((handle = testLoadDomainFromDoc(conn, domid, xmlDesc)) < 0)
+ if ((handle = testLoadDomainFromDoc(conn, domid, xmlDesc)) < 0) {
+ RELEASE_CONNECTION();
return (NULL);
+ }
privconn->domains[handle].config = 0;
dom = virGetDomain(conn, privconn->domains[handle].name, privconn->domains[handle].uuid);
- if (dom == NULL) return NULL;
+ if (dom == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
privconn->numDomains++;
+ RELEASE_CONNECTION();
return (dom);
}
@@ -1072,12 +1136,17 @@ static virDomainPtr testLookupDomainByID
if (idx < 0) {
testError (conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
+ RELEASE_CONNECTION();
return(NULL);
}
dom = virGetDomain(conn, privconn->domains[idx].name, privconn->domains[idx].uuid);
- if (dom == NULL) return NULL;
+ if (dom == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
dom->id = id;
+ RELEASE_CONNECTION();
return (dom);
}
@@ -1098,13 +1167,18 @@ static virDomainPtr testLookupDomainByUU
if (idx < 0) {
testError (conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
+ RELEASE_CONNECTION();
return NULL;
}
dom = virGetDomain(conn, privconn->domains[idx].name, privconn->domains[idx].uuid);
- if (dom == NULL) return NULL;
+ if (dom == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
dom->id = privconn->domains[idx].id;
+ RELEASE_CONNECTION();
return dom;
}
@@ -1125,13 +1199,18 @@ static virDomainPtr testLookupDomainByNa
if (idx < 0) {
testError (conn, NULL, NULL, VIR_ERR_NO_DOMAIN, NULL);
+ RELEASE_CONNECTION();
return NULL;
}
dom = virGetDomain(conn, privconn->domains[idx].name, privconn->domains[idx].uuid);
- if (dom == NULL) return NULL;
+ if (dom == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
dom->id = privconn->domains[idx].id;
+ RELEASE_CONNECTION();
return dom;
}
@@ -1148,6 +1227,7 @@ static int testListDomains (virConnectPt
ids[n++] = privconn->domains[i].id;
}
}
+ RELEASE_CONNECTION();
return (n);
}
@@ -1162,6 +1242,7 @@ static int testDestroyDomain (virDomainP
} else {
privdom->active = 0;
}
+ RELEASE_DOMAIN();
return (0);
}
@@ -1171,10 +1252,12 @@ static int testResumeDomain (virDomainPt
if (privdom->info.state != VIR_DOMAIN_PAUSED) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR, "domain not paused");
+ RELEASE_DOMAIN();
return -1;
}
privdom->info.state = VIR_DOMAIN_RUNNING;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1185,10 +1268,12 @@ static int testPauseDomain (virDomainPtr
if (privdom->info.state == VIR_DOMAIN_SHUTOFF ||
privdom->info.state == VIR_DOMAIN_PAUSED) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR, "domain not running");
+ RELEASE_DOMAIN();
return -1;
}
privdom->info.state = VIR_DOMAIN_PAUSED;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1198,13 +1283,14 @@ static int testShutdownDomain (virDomain
if (privdom->info.state == VIR_DOMAIN_SHUTOFF) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR, "domain not running");
+ RELEASE_DOMAIN();
return -1;
}
privdom->info.state = VIR_DOMAIN_SHUTOFF;
domain->id = -1;
privdom->id = -1;
-
+ RELEASE_DOMAIN();
return (0);
}
@@ -1245,6 +1331,7 @@ static int testRebootDomain (virDomainPt
break;
}
+ RELEASE_DOMAIN();
return (0);
}
@@ -1256,6 +1343,7 @@ static int testGetDomainInfo (virDomainP
if (gettimeofday(&tv, NULL) < 0) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR, _("getting time of day"));
+ RELEASE_DOMAIN();
return (-1);
}
@@ -1266,10 +1354,12 @@ static int testGetDomainInfo (virDomainP
privdom->info.cpuTime = ((tv.tv_sec * 1000ll * 1000ll * 1000ll) + (tv.tv_usec * 1000ll));
}
memcpy(info, &privdom->info, sizeof(virDomainInfo));
+
+ RELEASE_DOMAIN();
return (0);
}
-static char *testDomainDumpXML(virDomainPtr domain, int flags);
+static char *testDomainDumpXMLLocked(virDomainPtr domain, testDomPtr privdom, int flags);
#define TEST_SAVE_MAGIC "TestGuestMagic"
@@ -1280,11 +1370,12 @@ static int testDomainSave(virDomainPtr d
int fd, len;
GET_DOMAIN(domain, -1);
- xml = testDomainDumpXML(domain, 0);
+ xml = testDomainDumpXMLLocked(domain, privdom, 0);
if ((fd = open(path, O_CREAT|O_TRUNC|O_WRONLY, S_IRUSR|S_IWUSR)) < 0) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot save domain");
+ RELEASE_DOMAIN();
return (-1);
}
len = strlen(xml);
@@ -1292,24 +1383,28 @@ static int testDomainSave(virDomainPtr d
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot write header");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (write(fd, (char*)&len, sizeof(len)) != sizeof(len)) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot write metadata length");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (write(fd, xml, len) != len) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot write metadata");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (close(fd) < 0) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot save domain data");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (privdom->config) {
@@ -1319,8 +1414,10 @@ static int testDomainSave(virDomainPtr d
} else {
privdom->active = 0;
}
+ RELEASE_DOMAIN();
return 0;
}
+
static int testDomainRestore(virConnectPtr conn,
const char *path)
@@ -1333,42 +1430,49 @@ static int testDomainRestore(virConnectP
if ((fd = open(path, O_RDONLY)) < 0) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot read domain image");
+ RELEASE_CONNECTION();
return (-1);
}
if (read(fd, magic, sizeof(magic)) != sizeof(magic)) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"incomplete save header");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
if (memcmp(magic, TEST_SAVE_MAGIC, sizeof(magic))) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"mismatched header magic");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
if (read(fd, (char*)&len, sizeof(len)) != sizeof(len)) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"failed to read metadata length");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
if (len < 1 || len > 8192) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"length of metadata out of range");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
xml = malloc(len+1);
if (!xml) {
testError(conn, NULL, NULL, VIR_ERR_NO_MEMORY, "xml");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
if (read(fd, xml, len) != len) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
"incomplete metdata");
close(fd);
+ RELEASE_CONNECTION();
return (-1);
}
xml[len] = '\0';
@@ -1376,6 +1480,7 @@ static int testDomainRestore(virConnectP
domid = privconn->nextDomID++;
ret = testLoadDomainFromDoc(conn, domid, xml);
free(xml);
+ RELEASE_CONNECTION();
return ret < 0 ? -1 : 0;
}
@@ -1389,18 +1494,21 @@ static int testDomainCoreDump(virDomainP
if ((fd = open(to, O_CREAT|O_TRUNC|O_WRONLY, S_IRUSR|S_IWUSR)) < 0) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot save domain core");
+ RELEASE_DOMAIN();
return (-1);
}
if (write(fd, TEST_SAVE_MAGIC, sizeof(TEST_SAVE_MAGIC)) != sizeof(TEST_SAVE_MAGIC)) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot write header");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (close(fd) < 0) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
"cannot save domain data");
close(fd);
+ RELEASE_DOMAIN();
return (-1);
}
if (privdom->config) {
@@ -1410,6 +1518,7 @@ static int testDomainCoreDump(virDomainP
} else {
privdom->active = 0;
}
+ RELEASE_DOMAIN();
return 0;
}
@@ -1418,9 +1527,12 @@ static char *testGetOSType(virDomainPtr
}
static unsigned long testGetMaxMemory(virDomainPtr domain) {
+ unsigned long ret;
GET_DOMAIN(domain, -1);
- return privdom->info.maxMem;
+ ret = privdom->info.maxMem;
+ RELEASE_DOMAIN();
+ return ret;
}
static int testSetMaxMemory(virDomainPtr domain,
@@ -1430,6 +1542,7 @@ static int testSetMaxMemory(virDomainPtr
/* XXX validate not over host memory wrt to other domains */
privdom->info.maxMem = memory;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1440,10 +1553,12 @@ static int testSetMemory(virDomainPtr do
if (memory > privdom->info.maxMem) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ RELEASE_DOMAIN();
return (-1);
}
privdom->info.memory = memory;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1454,20 +1569,21 @@ static int testSetVcpus(virDomainPtr dom
/* We allow more cpus in guest than host */
if (nrCpus > 32) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ RELEASE_DOMAIN();
return (-1);
}
privdom->info.nrVirtCpu = nrCpus;
+ RELEASE_DOMAIN();
return (0);
}
-static char *testDomainDumpXML(virDomainPtr domain, int flags ATTRIBUTE_UNUSED)
+static char *testDomainDumpXMLLocked(virDomainPtr domain, testDomPtr privdom, int flags ATTRIBUTE_UNUSED)
{
virBufferPtr buf;
char *xml;
unsigned char *uuid;
char uuidstr[VIR_UUID_STRING_BUFLEN];
- GET_DOMAIN(domain, NULL);
if (!(buf = virBufferNew(4000))) {
testError(domain->conn, domain, NULL, VIR_ERR_NO_MEMORY, __FUNCTION__);
@@ -1489,8 +1605,17 @@ static char *testDomainDumpXML(virDomain
xml = buf->content;
free(buf);
-
return (xml);
+}
+
+static char *testDomainDumpXML(virDomainPtr domain, int flags)
+{
+ char *xml;
+ GET_DOMAIN(domain, NULL);
+
+ xml = testDomainDumpXMLLocked(domain, privdom, flags);
+ RELEASE_DOMAIN();
+ return xml;
}
static int testNumOfDefinedDomains(virConnectPtr conn) {
@@ -1503,6 +1628,7 @@ static int testNumOfDefinedDomains(virCo
continue;
numInactive++;
}
+ RELEASE_CONNECTION();
return (numInactive);
}
@@ -1518,6 +1644,7 @@ static int testListDefinedDomains(virCon
names[n++] = strdup(privconn->domains[i].name);
}
}
+ RELEASE_CONNECTION();
return (n);
}
@@ -1525,12 +1652,14 @@ static virDomainPtr testDomainDefineXML(
const char *doc) {
int handle;
xmlDocPtr xml;
+ virDomainPtr ret;
GET_CONNECTION(conn, NULL);
if (!(xml = xmlReadDoc(BAD_CAST doc, "domain.xml", NULL,
XML_PARSE_NOENT | XML_PARSE_NONET |
XML_PARSE_NOERROR | XML_PARSE_NOWARNING))) {
testError(conn, NULL, NULL, VIR_ERR_XML_ERROR, _("domain"));
+ RELEASE_CONNECTION();
return (NULL);
}
@@ -1539,10 +1668,14 @@ static virDomainPtr testDomainDefineXML(
xmlFreeDoc(xml);
- if (handle < 0)
+ if (handle < 0) {
+ RELEASE_CONNECTION();
return (NULL);
-
- return virGetDomain(conn, privconn->domains[handle].name, privconn->domains[handle].uuid);
+ }
+
+ ret = virGetDomain(conn, privconn->domains[handle].name, privconn->domains[handle].uuid);
+ RELEASE_CONNECTION();
+ return ret;
}
static int testDomainCreate(virDomainPtr domain) {
@@ -1551,12 +1684,14 @@ static int testDomainCreate(virDomainPtr
if (privdom->info.state != VIR_DOMAIN_SHUTOFF) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
_("Domain is already running"));
+ RELEASE_DOMAIN();
return (-1);
}
domain->id = privdom->id = privconn->nextDomID++;
privdom->info.state = VIR_DOMAIN_RUNNING;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1566,11 +1701,13 @@ static int testDomainUndefine(virDomainP
if (privdom->info.state != VIR_DOMAIN_SHUTOFF) {
testError(domain->conn, domain, NULL, VIR_ERR_INTERNAL_ERROR,
_("Domain is still running"));
+ RELEASE_DOMAIN();
return (-1);
}
privdom->active = 0;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1579,6 +1716,7 @@ static int testDomainGetAutostart(virDom
{
GET_DOMAIN(domain, -1);
*autostart = privdom->autostart;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1588,6 +1726,7 @@ static int testDomainSetAutostart(virDom
{
GET_DOMAIN(domain, -1);
privdom->autostart = autostart ? 1 : 0;
+ RELEASE_DOMAIN();
return (0);
}
@@ -1611,11 +1750,13 @@ static int testDomainGetSchedulerParams(
GET_DOMAIN(domain, -1);
if (*nparams != 1) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, "nparams");
+ RELEASE_DOMAIN();
return (-1);
}
strcpy(params[0].field, "weight");
params[0].type = VIR_DOMAIN_SCHED_FIELD_UINT;
params[0].value.ui = privdom->weight;
+ RELEASE_DOMAIN();
return 0;
}
@@ -1627,17 +1768,21 @@ static int testDomainSetSchedulerParams(
GET_DOMAIN(domain, -1);
if (nparams != 1) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, "nparams");
+ RELEASE_DOMAIN();
return (-1);
}
if (STRNEQ(params[0].field, "weight")) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, "field");
+ RELEASE_DOMAIN();
return (-1);
}
if (params[0].type != VIR_DOMAIN_SCHED_FIELD_UINT) {
testError(domain->conn, domain, NULL, VIR_ERR_INVALID_ARG, "type");
+ RELEASE_DOMAIN();
return (-1);
}
privdom->weight = params[0].value.ui;
+ RELEASE_DOMAIN();
return 0;
}
@@ -1662,6 +1807,7 @@ static virNetworkPtr testLookupNetworkBy
const unsigned char *uuid)
{
int i, idx = -1;
+ virNetworkPtr ret;
GET_CONNECTION(conn, NULL);
for (i = 0 ; i < MAX_NETWORKS ; i++) {
@@ -1677,13 +1823,16 @@ static virNetworkPtr testLookupNetworkBy
return NULL;
}
- return virGetNetwork(conn, privconn->networks[idx].name, privconn->networks[idx].uuid);
+ ret = virGetNetwork(conn, privconn->networks[idx].name, privconn->networks[idx].uuid);
+ RELEASE_CONNECTION();
+ return ret;
}
static virNetworkPtr testLookupNetworkByName(virConnectPtr conn,
const char *name)
{
int i, idx = -1;
+ virNetworkPtr ret;
GET_CONNECTION(conn, NULL);
for (i = 0 ; i < MAX_NETWORKS ; i++) {
@@ -1696,10 +1845,13 @@ static virNetworkPtr testLookupNetworkBy
if (idx < 0) {
testError (conn, NULL, NULL, VIR_ERR_NO_NETWORK, NULL);
+ RELEASE_CONNECTION();
return NULL;
}
- return virGetNetwork(conn, privconn->networks[idx].name, privconn->networks[idx].uuid);
+ ret = virGetNetwork(conn, privconn->networks[idx].name, privconn->networks[idx].uuid);
+ RELEASE_CONNECTION();
+ return ret;
}
@@ -1713,6 +1865,7 @@ static int testNumNetworks(virConnectPtr
continue;
numInactive++;
}
+ RELEASE_CONNECTION();
return (numInactive);
}
@@ -1726,6 +1879,7 @@ static int testListNetworks(virConnectPt
names[n++] = strdup(privconn->networks[i].name);
}
}
+ RELEASE_CONNECTION();
return (n);
}
@@ -1739,6 +1893,7 @@ static int testNumDefinedNetworks(virCon
continue;
numInactive++;
}
+ RELEASE_CONNECTION();
return (numInactive);
}
@@ -1752,6 +1907,7 @@ static int testListDefinedNetworks(virCo
names[n++] = strdup(privconn->networks[i].name);
}
}
+ RELEASE_CONNECTION();
return (n);
}
@@ -1762,21 +1918,29 @@ static virNetworkPtr testNetworkCreate(v
if (xml == NULL) {
testError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ RELEASE_CONNECTION();
return (NULL);
}
if (privconn->numNetworks == MAX_NETWORKS) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, _("too many networks"));
+ RELEASE_CONNECTION();
return (NULL);
}
- if ((handle = testLoadNetworkFromDoc(conn, xml)) < 0)
+ if ((handle = testLoadNetworkFromDoc(conn, xml)) < 0) {
+ RELEASE_CONNECTION();
return (NULL);
+ }
privconn->networks[handle].config = 0;
net = virGetNetwork(conn, privconn->networks[handle].name, privconn->networks[handle].uuid);
- if (net == NULL) return NULL;
+ if (net == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
privconn->numNetworks++;
+ RELEASE_CONNECTION();
return (net);
}
@@ -1787,21 +1951,29 @@ static virNetworkPtr testNetworkDefine(v
if (xml == NULL) {
testError(conn, NULL, NULL, VIR_ERR_INVALID_ARG, __FUNCTION__);
+ RELEASE_CONNECTION();
return (NULL);
}
if (privconn->numNetworks == MAX_NETWORKS) {
testError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, _("too many networks"));
+ RELEASE_CONNECTION();
return (NULL);
}
- if ((handle = testLoadNetworkFromDoc(conn, xml)) < 0)
+ if ((handle = testLoadNetworkFromDoc(conn, xml)) < 0) {
+ RELEASE_CONNECTION();
return (NULL);
+ }
net = virGetNetwork(conn, privconn->networks[handle].name, privconn->networks[handle].uuid);
privconn->networks[handle].config = 1;
- if (net == NULL) return NULL;
+ if (net == NULL) {
+ RELEASE_CONNECTION();
+ return NULL;
+ }
privconn->numNetworks++;
+ RELEASE_CONNECTION();
return (net);
}
@@ -1811,11 +1983,13 @@ static int testNetworkUndefine(virNetwor
if (privnet->running) {
testError(network->conn, NULL, network, VIR_ERR_INTERNAL_ERROR,
_("Network is still running"));
+ RELEASE_NETWORK();
return (-1);
}
privnet->active = 0;
+ RELEASE_NETWORK();
return (0);
}
@@ -1825,11 +1999,13 @@ static int testNetworkStart(virNetworkPt
if (privnet->running) {
testError(network->conn, NULL, network, VIR_ERR_INTERNAL_ERROR,
_("Network is already running"));
+ RELEASE_NETWORK();
return (-1);
}
privnet->running = 1;
+ RELEASE_NETWORK();
return (0);
}
@@ -1841,6 +2017,7 @@ static int testNetworkDestroy(virNetwork
} else {
privnet->active = 0;
}
+ RELEASE_NETWORK();
return (0);
}
@@ -1853,6 +2030,7 @@ static char *testNetworkDumpXML(virNetwo
if (!(buf = virBufferNew(4000))) {
testError(network->conn, NULL, network, VIR_ERR_NO_MEMORY, __FUNCTION__);
+ RELEASE_NETWORK();
return (NULL);
}
@@ -1882,6 +2060,7 @@ static char *testNetworkDumpXML(virNetwo
xml = buf->content;
free(buf);
+ RELEASE_NETWORK();
return (xml);
}
@@ -1891,8 +2070,10 @@ static char *testNetworkGetBridgeName(vi
bridge = strdup(privnet->bridge);
if (!bridge) {
testError(network->conn, NULL, network, VIR_ERR_NO_MEMORY, "network");
+ RELEASE_NETWORK();
return NULL;
}
+ RELEASE_NETWORK();
return bridge;
}
@@ -1900,6 +2081,7 @@ static int testNetworkGetAutostart(virNe
int *autostart) {
GET_NETWORK(network, -1);
*autostart = privnet->autostart;
+ RELEASE_NETWORK();
return (0);
}
@@ -1907,6 +2089,7 @@ static int testNetworkSetAutostart(virNe
int autostart) {
GET_NETWORK(network, -1);
privnet->autostart = autostart ? 1 : 0;
+ RELEASE_NETWORK();
return (0);
}
--
|=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=|
|=- Perl modules: http://search.cpan.org/~danberr/ -=|
|=- Projects: http://freshmeat.net/~danielpb/ -=|
|=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|
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