Hi!
I wrote some python modules for Ganglia 3.1.2, I have one question.
In my python code:
"value_type": "uint",
see output of gmond:
$ nc TARGETHOST 8649
...
<METRIC NAME="XXX" VAL="136" TYPE="uint32" ...
so I understand that "uint" in python code is treated as "uint32" in gmond.
I sent very big number (just like over 2147483648 (2G)) by my python
modules, but I got another number (rounded?) from gmond.
hmm.. so I read source code of Ganglia 3.1.2 and found cast from
unsigned long to unsigned int.
code from "ganglia-3.1.2/gmond/modules/python/mod_python.c":
...
case GANGLIA_VALUE_UNSIGNED_INT:
{
unsigned int v = 0;
get_python_uint_value(pobj, &v); // HERE
val.uint32 = v;
break;
}
...
...
int
get_python_uint_value(PyObject* dv, unsigned int* pint)
{
int cc = 1;
if (PyInt_Check(dv) || PyLong_Check(dv)) {
unsigned long v = PyInt_AsUnsignedLongMask(dv);
*pint = (unsigned int)v; // HERE
}
..
Why not return unsigned long straight insted of casted unsigned int?
Thanks.
--
HIROSE, Masaaki
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