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Simba/Projects/libmml/array.py
2010-09-12 14:27:42 +02:00

82 lines
1.8 KiB
Python
Executable File

#!/usr/bin/env python
from ctypes import *
import platform
if platform.system() == 'Windows':
dll = CDLL('./libmml.dll')
else:
dll = CDLL('./libmml.so')
class PascalArray(object):
def __init__(self, pastype, ptr):
self._type = pastype
self._p = ptr
def __del__(self):
print 'Freeing now: %i' % self._p
dll.freearr(self._p)
print 'Freed'
def __len__(self):
return cast(self._p, POINTER(c_ulong))[-1] + 1
def __getitem__(self, pos):
if pos > len(self):
print 'Out of range'
return None
return cast(self._p, POINTER(self._type))[pos]
def __setitem__(self, pos, item):
if pos > len(self):
print 'Out of range'
return
if sizeof(item) != sizeof(self._type):
print 'Incorrect structure'
return
cast(self._p, POINTER(self._type))[pos] = item
class POINT(Structure):
_fields_ = [('x', c_int),
('y', c_int)]
PPOINT = POINTER(POINT)
dll.returnpoints.restype = POINTER(POINT)
dll.returnpoints.argtypes = None
dll.fpc_freemem_.restype = None
dll.fpc_freemem_.argtypes = [POINTER(c_int)]
dll.fpc_allocmem_.restype = POINTER(c_int)
dll.fpc_allocmem_.argtypes = [c_int]
mem = dll.fpc_allocmem_(8)
print 'allocated'
dll.fpc_freemem_(mem)
print 'freed'
myarr = PascalArray(POINT, dll.returnarray())
print 'Allocated array'
print len(myarr)
for i in range(len(myarr)):
print myarr[i].x, myarr[i].y
p = POINT()
p.x = 42;
p.y = 42;
myarr[0] = p
for i in range(len(myarr)):
print myarr[i].x, myarr[i].y
print 'Freeing'
del myarr
#print myarr
#print 'freeing'
#dll.freearr.argtypes = [POINTER(c_int)]
#dll.freearr.restype = None
#
#dll.freearr(cast(myarr._p, POINTER(c_int)))
#print myarr[0].x