用c的写python模块的演示
不说话,贴代码uuxx/test.py
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#!/usr/bin/env python
import uuxx
for i in range(111):
filename=uuxx.uufilename()
print filename,len(filename)
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uuxx/setup.py
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#!/usr/bin/python
from distutils.core import setup, Extension
setup(
name = "uuxx",
version = "1.1",
author = "zsp",
author_email = "zsp007@gmail.com",
url = "http://zsp.iteye.com",
description = "uuid for more things",
license = "GPL",
classifiers = [
"License :: GPL",
"Programming Language :: C++"],
ext_modules = [
Extension(
"uuxx",
["uuxx.cpp"],
include_dirs = ["/usr/include/"],
libraries = ["uuid","util"]
)
]
)
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uuxx.cpp
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extern "C"{
#include <uuid/uuid.h>
#include <Python.h>
}
void base64_encode(const void* pdata,const unsigned long data_size, void* out_pcode)
{
static const unsigned char base64char[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_!";
if (data_size <=0) return;
const unsigned char* pS = (const unsigned char*)pdata;
const unsigned char* pSEnd = &pS;
unsigned char* pD =(unsigned char*)out_pcode;
for(;pS <pSEnd-2;pS+=3,pD+=4)
{
pD[0] = base64char0]>> 2];
pD[1] = base64char[0x3F & (pS[0] <<4 | pS[1]>> 4)];
pD[2] = base64char[0x3F & (pS[1] <<2 | pS[2]>> 6)];
pD[3] = base64char[0x3F & pS[2]];
}
//static const unsigned char BASE64_PADDING='=';
switch (pSEnd-pS)
{
case 1:
pD[0]=base64char0]>> 2];
pD[1]=base64char[0x3F & (pS[0] <<4)];
//pD = BASE64_PADDING;
//pD = BASE64_PADDING ;
break;
case 2:
pD[0]=base64char0]>> 2];
pD[1]=base64char[0x3F & (pS[0] <<4 | pS[1]>> 4)];
pD[2]=base64char[0x3F & (pS[1] <<2)];
//pD = BASE64_PADDING ;
break;
}
};
PyObject * uufilename(PyObject * args,PyObject *kwds){
uuid_t uu;
uuid_generate( uu );
//用的改造过的base64的编码+改造的uuid
static const unsigned data_size=16;
static const int b64_length = (data_size+2)/3*4-2;
char b64uu;
base64_encode(uu,data_size,b64uu);
PyObject *value = PyString_FromStringAndSize(b64uu,b64_length);
return value;
};
PyDoc_STRVAR(uufilename__doc__,
"uufilename"
);
static PyMethodDef uuxx_methods[] = {
{
"uufilename",
uufilename,
METH_VARARGS,
uufilename__doc__
},
{NULL, NULL, 0, NULL}
};
PyMODINIT_FUNC inituuxx(){
Py_InitModule("uuxx", uuxx_methods);
}
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