Я пытаюсь использовать лицензию RLM (Reprise License Manager) с python 3.5.Использовал RLM с Python 2.7, но столкнулся с проблемами с 3.5.Когда я запускаю пример кода, предоставленного RLM, он работает с python 3.5 на Windows 7, но не работает на Windows 8, 10. Тот же код работает с той же DLL RLM с python 2.7 на всех версиях Windows.
сообщение об ошибке
stat = rlm.rlm_stat(rh)
OSError: exception: access violation reading 0x00000000311E1908
Ниже приведен пример кода из RLM.
#
# Example of calling RLM functions from Python. This example uses Python 3.
# This is not a complete Python language interface for RLM - instead it shows
# how to pass the essential data types back and forth between Python and RLM.
#
#
# Use Python ctypes library to call RLM functions
# There is a good writeup here: https://docs.python.org/3.4/library/ctypes.html
from ctypes import *
import sys
# This loads rlm1122.dll from the current working directory
rlm = cdll.rlm1222
# This loads librlm1122.so from the current working directory - note that on
# Windows ctypes adds the .dll but on Linux, etc we need to explicitly call
# LoadLibrary and supply the suffix
# rlm=cdll.LoadLibrary("librlm1122.so")
# Specify the argument types and return type of the RLM functions to be used.
# In C, rlm_init()'s prototype is
# RLM_HANDLE *rlm_init(const char *, const char *, const char *)
# Pass the const char* as c_char_p. RLM_HANDLE is an opaque pointer - use an
# unsigned long to represent this and other RLM handle types in Python.
rlm.rlm_init.argtypes = [c_char_p, c_char_p, c_char_p]
rlm.rlm_init.restype = c_ulong
# Argument and return types for rlm_checkout, rlm_stat, rlm_license_stat,
# rlm_checkin, and rlm_close. Use an unsigned long for the
# license handle, as we do for the RLM handle returned from rlm_init
rlm.rlm_checkout.argtypes = [c_ulong, c_char_p, c_char_p, c_int]
rlm.rlm_checkout.restype = c_ulong
rlm.rlm_stat.argtypes = [c_ulong]
rlm.rlm_stat.restype = c_int
rlm.rlm_license_stat.argtypes = [c_ulong]
rlm.rlm_license_stat.restype = c_int
rlm.rlm_checkin.argtypes = [c_ulong]
rlm.rlm_checkin.restype = c_int
rlm.rlm_close.argtypes = [c_ulong]
rlm.rlm_close.restype = c_int
# Create a string buffer to pass to rlm_errstring if we need it
errbuf = create_string_buffer(512)
lic = c_ulong(0)
rh = rlm.rlm_init(b"5053@192.168.1.102", b"", b"")
stat = rlm.rlm_stat(rh)
if stat != 0:
errstring = create_string_buffer(1000)
rlm.rlm_errstring_num(stat, errstring)
errMessage = str(errstring.value, 'utf-8')
print("rlm_init error" + str(stat))
print(errMessage)
sys.exit()
product = b"baseApp"
version = b"1.0"
lic = rlm.rlm_checkout(rh, product, version, 1)
stat = rlm.rlm_license_stat(lic)
if stat != 0:
rlm.rlm_errstring(lic, rh, errbuf)
print(errbuf.value)
sys.exit()
print("checkout OK")
rlm.rlm_checkin(lic)
rlm.rlm_close(rh)