I have a problem when i pass variable arguments to ctypes function from HTML/JS->python in pyramid f/w -->C++
For example my http Get Call wil be as below:
PHP Code:
type: "GET",
async: false,
url: "/web/NewModel/getValues?count=2¶meters=Param1,Param2",
success: function(data){
alert(data.GetValue)
python base code
Code:
def get_Multiple_Xpaths(request):
count = int(request.params['count'])
requests=[]
requests = request.params['parameters'].split(',')
print 'count:%s' % (count)
data=wrapperClass.getMultipleValues(count , *requests)
print 'Final Data:%s' % (data)
return {'Get':data}
I/F Python between python and C++
Code:
from ctypes import *
so = cdll.LoadLibrary(***)
funcHandle = so.CallC++Function
funcHandle.restype = c_char_p
def getMultipleValues(cls, count, *args):
print 'count:%s' % (count)
print 'Length of tuple:%s' %str(len(args))
for a in args:
print 'Wrapper Param:%s' % (a)
value=funcHandle(count, "Find" , *args) -->C++ debug prints parameters as empty. I tried to use str(*args) but it works only if *args actually has 1 argument. For multiple, it throws a type error.
print 'Wrapper Value:%s' % (value) ---->Returns Empty
return value
The problem seems to be when i pass *args between 2 python functions, it is getting the values fine(when i print the values in getMultipleValues Function it prints fine). However the funcHandle Call which i use, the C++ doesnt get any value for *args which is being passed.
If i run a test program with funcHandle(count, "Find" , "parameter1" , "parameter2"), it gets the values fine.
Please advice me on what i am doing wrong here. My requirement is to pass the function with variable number of arguments as mentioned in the previous line so that C++ functions can access and process whatever it needs to. Thanks in advance. Cheers.
