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virPyDictToTypedParams: packing lists of values

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Pack a list or a tuple of values passed to a Python method to the
multi-value parameter.
This commit is contained in:
Pavel Boldin
2015-06-16 04:39:11 +03:00
committed by Michal Privoznik
parent 7acf1422c5
commit 9896626b82
1 changed files with 129 additions and 99 deletions
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228
libvirt-override.c
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@ -278,6 +278,126 @@ typedef virPyTypedParamsHint *virPyTypedParamsHintPtr;
# define libvirt_PyString_Check PyString_Check
# endif
static int
virPyDictToTypedParamOne(virTypedParameterPtr *params,
int *n,
int *max,
virPyTypedParamsHintPtr hints,
int nhints,
const char *keystr,
PyObject *value)
{
int rv = -1, type = -1;
size_t i;
for (i = 0; i < nhints; i++) {
if (STREQ(hints[i].name, keystr)) {
type = hints[i].type;
break;
}
}
if (type == -1) {
if (libvirt_PyString_Check(value)) {
type = VIR_TYPED_PARAM_STRING;
} else if (PyBool_Check(value)) {
type = VIR_TYPED_PARAM_BOOLEAN;
} else if (PyLong_Check(value)) {
unsigned long long ull = PyLong_AsUnsignedLongLong(value);
if (ull == (unsigned long long) -1 && PyErr_Occurred())
type = VIR_TYPED_PARAM_LLONG;
else
type = VIR_TYPED_PARAM_ULLONG;
#if PY_MAJOR_VERSION < 3
} else if (PyInt_Check(value)) {
if (PyInt_AS_LONG(value) < 0)
type = VIR_TYPED_PARAM_LLONG;
else
type = VIR_TYPED_PARAM_ULLONG;
#endif
} else if (PyFloat_Check(value)) {
type = VIR_TYPED_PARAM_DOUBLE;
}
}
if (type == -1) {
PyErr_Format(PyExc_TypeError,
"Unknown type of \"%s\" field", keystr);
goto cleanup;
}
switch ((virTypedParameterType) type) {
case VIR_TYPED_PARAM_INT:
{
int val;
if (libvirt_intUnwrap(value, &val) < 0 ||
virTypedParamsAddInt(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_UINT:
{
unsigned int val;
if (libvirt_uintUnwrap(value, &val) < 0 ||
virTypedParamsAddUInt(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_LLONG:
{
long long val;
if (libvirt_longlongUnwrap(value, &val) < 0 ||
virTypedParamsAddLLong(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_ULLONG:
{
unsigned long long val;
if (libvirt_ulonglongUnwrap(value, &val) < 0 ||
virTypedParamsAddULLong(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_DOUBLE:
{
double val;
if (libvirt_doubleUnwrap(value, &val) < 0 ||
virTypedParamsAddDouble(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_BOOLEAN:
{
bool val;
if (libvirt_boolUnwrap(value, &val) < 0 ||
virTypedParamsAddBoolean(params, n, max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_STRING:
{
char *val;;
if (libvirt_charPtrUnwrap(value, &val) < 0 ||
!val ||
virTypedParamsAddString(params, n, max, keystr, val) < 0) {
VIR_FREE(val);
goto cleanup;
}
VIR_FREE(val);
break;
}
case VIR_TYPED_PARAM_LAST:
break; /* unreachable */
}
rv = 0;
cleanup:
return rv;
}
/* Automatically convert dict into type parameters based on types reported
* by python. All integer types are converted into LLONG (in case of a negative
* value) or ULLONG (in case of a positive value). If you need different
@ -300,7 +420,6 @@ virPyDictToTypedParams(PyObject *dict,
Py_ssize_t pos = 0;
#endif
virTypedParameterPtr params = NULL;
size_t i;
int n = 0;
int max = 0;
int ret = -1;
@ -313,112 +432,23 @@ virPyDictToTypedParams(PyObject *dict,
return -1;
while (PyDict_Next(dict, &pos, &key, &value)) {
int type = -1;
if (libvirt_charPtrUnwrap(key, &keystr) < 0 ||
!keystr)
goto cleanup;
for (i = 0; i < nhints; i++) {
if (STREQ(hints[i].name, keystr)) {
type = hints[i].type;
break;
}
}
if (PyList_Check(value) || PyTuple_Check(value)) {
Py_ssize_t i, size = PySequence_Size(value);
if (type == -1) {
if (libvirt_PyString_Check(value)) {
type = VIR_TYPED_PARAM_STRING;
} else if (PyBool_Check(value)) {
type = VIR_TYPED_PARAM_BOOLEAN;
} else if (PyLong_Check(value)) {
unsigned long long ull = PyLong_AsUnsignedLongLong(value);
if (ull == (unsigned long long) -1 && PyErr_Occurred())
type = VIR_TYPED_PARAM_LLONG;
else
type = VIR_TYPED_PARAM_ULLONG;
#if PY_MAJOR_VERSION < 3
} else if (PyInt_Check(value)) {
if (PyInt_AS_LONG(value) < 0)
type = VIR_TYPED_PARAM_LLONG;
else
type = VIR_TYPED_PARAM_ULLONG;
#endif
} else if (PyFloat_Check(value)) {
type = VIR_TYPED_PARAM_DOUBLE;
for (i = 0; i < size; i++) {
PyObject *v = PySequence_ITEM(value, i);
if (virPyDictToTypedParamOne(&params, &n, &max,
hints, nhints, keystr, v) < 0)
goto cleanup;
}
}
if (type == -1) {
PyErr_Format(PyExc_TypeError,
"Unknown type of \"%s\" field", keystr);
} else if (virPyDictToTypedParamOne(&params, &n, &max,
hints, nhints, keystr, value) < 0)
goto cleanup;
}
switch ((virTypedParameterType) type) {
case VIR_TYPED_PARAM_INT:
{
int val;
if (libvirt_intUnwrap(value, &val) < 0 ||
virTypedParamsAddInt(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_UINT:
{
unsigned int val;
if (libvirt_uintUnwrap(value, &val) < 0 ||
virTypedParamsAddUInt(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_LLONG:
{
long long val;
if (libvirt_longlongUnwrap(value, &val) < 0 ||
virTypedParamsAddLLong(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_ULLONG:
{
unsigned long long val;
if (libvirt_ulonglongUnwrap(value, &val) < 0 ||
virTypedParamsAddULLong(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_DOUBLE:
{
double val;
if (libvirt_doubleUnwrap(value, &val) < 0 ||
virTypedParamsAddDouble(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_BOOLEAN:
{
bool val;
if (libvirt_boolUnwrap(value, &val) < 0 ||
virTypedParamsAddBoolean(&params, &n, &max, keystr, val) < 0)
goto cleanup;
break;
}
case VIR_TYPED_PARAM_STRING:
{
char *val;;
if (libvirt_charPtrUnwrap(value, &val) < 0 ||
!val ||
virTypedParamsAddString(&params, &n, &max, keystr, val) < 0) {
VIR_FREE(val);
goto cleanup;
}
VIR_FREE(val);
break;
}
case VIR_TYPED_PARAM_LAST:
break; /* unreachable */
}
VIR_FREE(keystr);
}