gfapi binary file test

gfapi_binary.py

#!/usr/bin/env python

from ctypes import *
from gluster.gfapi import Volume
from array import array


class Point(Structure):
    _fields_ = [('name', c_char_p),
                ('x', c_double), ('y', c_double), ('z', c_double)]

v = Volume("localhost", "test")
v.mount()

buf = bytearray(100)

with v.fopen("xyz", 'wb') as f:
    p1 = Point("corner1", 1.6, 2.8, 3)
    p2 = Point("center point", 1.1, -2, 0)
    f.write(p1)
    f.write(p2)
    a = array('i', [1, 2, 3])
    f.write(a)
    f.fsync()

with v.fopen("xyz", 'rb') as f:
    p = Point()
    for i in xrange(0, 2):
        # Read directly into the object
        f.readinto(p)
        print p.name
        print p.x
        print p.y
        print p.z

    # Reading the array
    s = f.read()  # Returns a string
    a = array('i')
    a.fromstring(s)
    print a