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Fix threading problems in python bindings

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* libvirt-override.c: Add many missing calls to allow threading
  when entering C code, otherwise python blocks & then deadlocks
  when we have an async event to dispatch back into python code.
  Fix return value check for virDomainPinVcpu binding.
This commit is contained in:
Daniel P. Berrange 2009-11-25 12:04:47 +00:00
parent 7ed63c5312
commit bb8d57c68a
1 changed files with 100 additions and 11 deletions
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111
python/libvirt-override.c
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@ -67,7 +67,10 @@ libvirt_virDomainBlockStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args) {
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virDomainBlockStats(domain, path, &stats, sizeof(stats));
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -96,7 +99,10 @@ libvirt_virDomainInterfaceStats(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virDomainInterfaceStats(domain, path, &stats, sizeof(stats));
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -128,7 +134,9 @@ libvirt_virDomainGetSchedulerType(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virDomainGetSchedulerType(domain, &nparams);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval == NULL)
return VIR_PY_NONE;
@ -150,6 +158,7 @@ libvirt_virDomainGetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
virDomainPtr domain;
PyObject *pyobj_domain, *info;
char *c_retval;
int i_retval;
int nparams, i;
virSchedParameterPtr params;
@ -158,7 +167,10 @@ libvirt_virDomainGetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virDomainGetSchedulerType(domain, &nparams);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval == NULL)
return VIR_PY_NONE;
free(c_retval);
@ -166,7 +178,11 @@ libvirt_virDomainGetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
if ((params = malloc(sizeof(*params)*nparams)) == NULL)
return VIR_PY_NONE;
if (virDomainGetSchedulerParameters(domain, params, &nparams) < 0) {
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainGetSchedulerParameters(domain, params, &nparams);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0) {
free(params);
return VIR_PY_NONE;
}
@ -223,6 +239,7 @@ libvirt_virDomainSetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
virDomainPtr domain;
PyObject *pyobj_domain, *info;
char *c_retval;
int i_retval;
int nparams, i;
virSchedParameterPtr params;
@ -231,7 +248,10 @@ libvirt_virDomainSetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virDomainGetSchedulerType(domain, &nparams);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval == NULL)
return VIR_PY_INT_FAIL;
free(c_retval);
@ -239,7 +259,11 @@ libvirt_virDomainSetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
if ((params = malloc(sizeof(*params)*nparams)) == NULL)
return VIR_PY_INT_FAIL;
if (virDomainGetSchedulerParameters(domain, params, &nparams) < 0) {
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainGetSchedulerParameters(domain, params, &nparams);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0) {
free(params);
return VIR_PY_INT_FAIL;
}
@ -292,7 +316,10 @@ libvirt_virDomainSetSchedulerParameters(PyObject *self ATTRIBUTE_UNUSED,
}
}
if (virDomainSetSchedulerParameters(domain, params, nparams) < 0) {
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainSetSchedulerParameters(domain, params, nparams);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0) {
free(params);
return VIR_PY_INT_FAIL;
}
@ -311,16 +338,23 @@ libvirt_virDomainGetVcpus(PyObject *self ATTRIBUTE_UNUSED,
virVcpuInfoPtr cpuinfo = NULL;
unsigned char *cpumap = NULL;
int cpumaplen, i;
int i_retval;
if (!PyArg_ParseTuple(args, (char *)"O:virDomainGetVcpus",
&pyobj_domain))
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
if (virNodeGetInfo(virDomainGetConnect(domain), &nodeinfo) != 0)
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virNodeGetInfo(virDomainGetConnect(domain), &nodeinfo);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0)
return VIR_PY_NONE;
if (virDomainGetInfo(domain, &dominfo) != 0)
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainGetInfo(domain, &dominfo);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0)
return VIR_PY_NONE;
if ((cpuinfo = malloc(sizeof(*cpuinfo)*dominfo.nrVirtCpu)) == NULL)
@ -330,9 +364,12 @@ libvirt_virDomainGetVcpus(PyObject *self ATTRIBUTE_UNUSED,
if ((cpumap = malloc(dominfo.nrVirtCpu * cpumaplen)) == NULL)
goto cleanup;
if (virDomainGetVcpus(domain,
cpuinfo, dominfo.nrVirtCpu,
cpumap, cpumaplen) < 0)
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainGetVcpus(domain,
cpuinfo, dominfo.nrVirtCpu,
cpumap, cpumaplen);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0)
goto cleanup;
/* convert to a Python tuple of long objects */
@ -395,13 +432,17 @@ libvirt_virDomainPinVcpu(PyObject *self ATTRIBUTE_UNUSED,
virNodeInfo nodeinfo;
unsigned char *cpumap;
int cpumaplen, i, vcpu;
int i_retval;
if (!PyArg_ParseTuple(args, (char *)"OiO:virDomainPinVcpu",
&pyobj_domain, &vcpu, &pycpumap))
return(NULL);
domain = (virDomainPtr) PyvirDomain_Get(pyobj_domain);
if (virNodeGetInfo(virDomainGetConnect(domain), &nodeinfo) != 0)
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virNodeGetInfo(virDomainGetConnect(domain), &nodeinfo);
LIBVIRT_END_ALLOW_THREADS;
if (i_retval < 0)
return VIR_PY_INT_FAIL;
cpumaplen = VIR_CPU_MAPLEN(VIR_NODEINFO_MAXCPUS(nodeinfo));
@ -418,10 +459,15 @@ libvirt_virDomainPinVcpu(PyObject *self ATTRIBUTE_UNUSED,
VIR_UNUSE_CPU(cpumap, i);
}
virDomainPinVcpu(domain, vcpu, cpumap, cpumaplen);
LIBVIRT_BEGIN_ALLOW_THREADS;
i_retval = virDomainPinVcpu(domain, vcpu, cpumap, cpumaplen);
LIBVIRT_END_ALLOW_THREADS;
Py_DECREF(truth);
free(cpumap);
if (i_retval < 0)
return VIR_PY_INT_FAIL;
return VIR_PY_INT_SUCCESS;
}
@ -471,7 +517,10 @@ libvirt_virConnGetLastError(PyObject *self ATTRIBUTE_UNUSED, PyObject *args)
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
if ((err = virConnGetLastError(conn)) == NULL)
LIBVIRT_BEGIN_ALLOW_THREADS;
err = virConnGetLastError(conn);
LIBVIRT_END_ALLOW_THREADS;
if (err == NULL)
return VIR_PY_NONE;
if ((info = PyTuple_New(9)) == NULL)
@ -793,7 +842,9 @@ libvirt_virConnectListDefinedDomains(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfDefinedDomains(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -801,7 +852,9 @@ libvirt_virConnectListDefinedDomains(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListDefinedDomains(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -966,7 +1019,9 @@ libvirt_virConnectListNetworks(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfNetworks(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -974,7 +1029,9 @@ libvirt_virConnectListNetworks(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListNetworks(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1008,7 +1065,9 @@ libvirt_virConnectListDefinedNetworks(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfDefinedNetworks(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1016,7 +1075,9 @@ libvirt_virConnectListDefinedNetworks(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListDefinedNetworks(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1211,7 +1272,9 @@ libvirt_virConnectListStoragePools(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfStoragePools(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1219,7 +1282,9 @@ libvirt_virConnectListStoragePools(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListStoragePools(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1261,7 +1326,9 @@ libvirt_virConnectListDefinedStoragePools(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfDefinedStoragePools(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1269,7 +1336,9 @@ libvirt_virConnectListDefinedStoragePools(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListDefinedStoragePools(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1311,7 +1380,9 @@ libvirt_virStoragePoolListVolumes(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
pool = (virStoragePoolPtr) PyvirStoragePool_Get(pyobj_pool);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virStoragePoolNumOfVolumes(pool);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1319,7 +1390,9 @@ libvirt_virStoragePoolListVolumes(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virStoragePoolListVolumes(pool, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1520,7 +1593,9 @@ libvirt_virNodeListDevices(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeNumOfDevices(conn, cap, flags);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1528,7 +1603,9 @@ libvirt_virNodeListDevices(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeListDevices(conn, cap, names, c_retval, flags);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1560,7 +1637,9 @@ libvirt_virNodeDeviceListCaps(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
dev = (virNodeDevicePtr) PyvirNodeDevice_Get(pyobj_dev);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeDeviceNumOfCaps(dev);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1568,7 +1647,9 @@ libvirt_virNodeDeviceListCaps(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virNodeDeviceListCaps(dev, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1775,7 +1856,9 @@ libvirt_virConnectListInterfaces(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfInterfaces(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1783,7 +1866,9 @@ libvirt_virConnectListInterfaces(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListInterfaces(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;
@ -1826,7 +1911,9 @@ libvirt_virConnectListDefinedInterfaces(PyObject *self ATTRIBUTE_UNUSED,
return(NULL);
conn = (virConnectPtr) PyvirConnect_Get(pyobj_conn);
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectNumOfDefinedInterfaces(conn);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0)
return VIR_PY_NONE;
@ -1834,7 +1921,9 @@ libvirt_virConnectListDefinedInterfaces(PyObject *self ATTRIBUTE_UNUSED,
names = malloc(sizeof(*names) * c_retval);
if (!names)
return VIR_PY_NONE;
LIBVIRT_BEGIN_ALLOW_THREADS;
c_retval = virConnectListDefinedInterfaces(conn, names, c_retval);
LIBVIRT_END_ALLOW_THREADS;
if (c_retval < 0) {
free(names);
return VIR_PY_NONE;