4:56 a.m.
From: Nikunj A. Dadhania <nikunj(a)linux.vnet.ibm.com>
This patch adds a structure virMemoryParameter, it contains the name of the
parameter and the type of the parameter along with a union.
v3:
+ Protoype for virDomainGetMemoryParameters and dummy python binding.
v2:
+ Includes dummy python bindings for the library to build cleanly.
+ Define string constants like "hard_limit", etc.
+ re-order this patch.
Signed-off-by: Nikunj A. Dadhania <nikunj(a)linux.vnet.ibm.com>
---
include/libvirt/libvirt.h.in | 68 +++++++++++++++++++++++++++++++++++++++
python/generator.py | 2 +
python/libvirt-override-api.xml | 12 +++++++
python/libvirt-override.c | 14 ++++++++
4 files changed, 96 insertions(+), 0 deletions(-)
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index b45f7ec..a528f67 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -674,6 +674,74 @@ int virDomainGetInfo (virDomainPtr
domain,
char * virDomainGetSchedulerType(virDomainPtr domain,
int *nparams);
+/**
+ * virDomainMemoryParameterType:
+ *
+ * A memory parameter field type
+ */
+typedef enum {
+ VIR_DOMAIN_MEMORY_FIELD_INT = 1, /* integer case */
+ VIR_DOMAIN_MEMORY_FIELD_UINT = 2, /* unsigned integer case */
+ VIR_DOMAIN_MEMORY_FIELD_LLONG = 3, /* long long case */
+ VIR_DOMAIN_MEMORY_FIELD_ULLONG = 4, /* unsigned long long case */
+ VIR_DOMAIN_MEMORY_FIELD_DOUBLE = 5, /* double case */
+ VIR_DOMAIN_MEMORY_FIELD_BOOLEAN = 6 /* boolean(character) case */
+} virMemoryParameterType;
+
+/**
+ * VIR_DOMAIN_MEMORY_FIELD_LENGTH:
+ *
+ * Macro providing the field length of virMemoryParameter
+ */
+
+#define VIR_DOMAIN_MEMORY_FIELD_LENGTH 80
+#define VIR_DOMAIN_MEMORY_HARD_LIMIT "hard_limit"
+#define VIR_DOMAIN_MEMORY_SOFT_LIMIT "soft_limit"
+#define VIR_DOMAIN_MEMORY_MIN_GUARANTEE "min_guarantee"
+#define VIR_DOMAIN_SWAP_HARD_LIMIT "swap_hard_limit"
+
+/**
+ * virDomainMemoryParameter:
+ *
+ * a virDomainMemoryParameter is the set of scheduler parameters
+ */
+
+typedef struct _virMemoryParameter virMemoryParameter;
+
+struct _virMemoryParameter {
+ char field[VIR_DOMAIN_MEMORY_FIELD_LENGTH]; /* parameter name */
+ int type; /* parameter type */
+ union {
+ int i; /* data for integer case */
+ unsigned int ui; /* data for unsigned integer case */
+ long long int l; /* data for long long integer case */
+ unsigned long long int ul; /* data for unsigned long long integer case */
+ double d; /* data for double case */
+ char b; /* data for char case */
+ } value; /* parameter value */
+};
+
+/**
+ * virMemoryParameterPtr:
+ *
+ * a virMemoryParameterPtr is a pointer to a virMemoryParameter structure.
+ */
+
+typedef virMemoryParameter *virMemoryParameterPtr;
+
+/* Set memory tunables for the domain*/
+int virDomainSetMemoryParameters(virDomainPtr domain,
+ virMemoryParameterPtr params,
+ int nparams);
+/* Get memory tunables for the domain, caller allocates the params if nparams
+ * is zero and params is NULL, the domain returns back number of parameters
+ * supported by the HV. This could be used by the caller to allocate the
+ * memory and call with params structure allocated.
+ */
+int virDomainGetMemoryParameters(virDomainPtr domain,
+ virMemoryParameterPtr params,
+ int *nparams);
+
/*
* Dynamic control of domains
*/
diff --git a/python/generator.py b/python/generator.py
index d876df6..68009b9 100755
--- a/python/generator.py
+++ b/python/generator.py
@@ -306,6 +306,8 @@ skip_impl = (
'virDomainGetSchedulerType',
'virDomainGetSchedulerParameters',
'virDomainSetSchedulerParameters',
+ 'virDomainSetMemoryParameters',
+ 'virDomainGetMemoryParameters',
'virDomainGetVcpus',
'virDomainPinVcpu',
'virSecretGetValue',
diff --git a/python/libvirt-override-api.xml b/python/libvirt-override-api.xml
index ca16993..f209608 100644
--- a/python/libvirt-override-api.xml
+++ b/python/libvirt-override-api.xml
@@ -162,6 +162,18 @@
<arg name='domain' type='virDomainPtr' info='pointer to
domain object'/>
<arg name='params' type='virSchedParameterPtr' info='pointer
to scheduler parameter objects'/>
</function>
+ <function name='virDomainSetMemoryParameters' file='python'>
+ <info>Change the memory tunables</info>
+ <return type='int' info='-1 in case of error, 0 in case of
success.'/>
+ <arg name='domain' type='virDomainPtr' info='pointer to
domain object'/>
+ <arg name='params' type='virMemoryParameterPtr'
info='pointer to memory tunable objects'/>
+ </function>
+ <function name='virDomainGetMemoryParameters' file='python'>
+ <info>Get the memory parameters, the @params array will be filled with the
values.</info>
+ <return type='int' info='-1 in case of error, 0 in case of
success.'/>
+ <arg name='domain' type='virDomainPtr' info='pointer to
domain object'/>
+ <arg name='params' type='virMemoryParameterPtr'
info='pointer to memory tunable objects'/>
+ </function>
<function name='virConnectListStoragePools' file='python'>
<info>list the storage pools, stores the pointers to the names in
@names</info>
<arg name='conn' type='virConnectPtr' info='pointer to the
hypervisor connection'/>
diff --git a/python/libvirt-override.c b/python/libvirt-override.c
index 54a84c2..c43ab15 100644
--- a/python/libvirt-override.c
+++ b/python/libvirt-override.c
@@ -371,6 +371,20 @@ libvirt_virDomainSetSchedulerParameters(PyObject *self
ATTRIBUTE_UNUSED,
return VIR_PY_INT_SUCCESS;
}
+/* FIXME: This is a place holder for the implementation. */
+static PyObject *
+libvirt_virDomainSetMemoryParameters(PyObject *self ATTRIBUTE_UNUSED,
+ PyObject *args) {
+ return VIR_PY_INT_FAIL;
+}
+
+/* FIXME: This is a place holder for the implementation. */
+static PyObject *
+libvirt_virDomainGetMemoryParameters(PyObject *self ATTRIBUTE_UNUSED,
+ PyObject *args) {
+ return VIR_PY_INT_FAIL;
+}
+
static PyObject *
libvirt_virDomainGetVcpus(PyObject *self ATTRIBUTE_UNUSED,
PyObject *args) {