! , - . - 1, .
, dll , , JSON , 2 . , . web- , ctypes, .
:
import ctypes
def callback_recv(*args):
print(args)
lib = ctypes.cdll.LoadLibrary('test.dll')
Callback = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
my_func = getattr(lib, '_ZN7GtTools4testEPKcPFviS1_E')
cb_func = Callback(callback_recv)
my_func(ctypes.c_char_p('some data'), cb_func)
, . , .lib objdump -D, .
- , (mangle ) , . MinGW
1 . dll , Native API, . , . , - gcc. Visual Studio , , .
. , , . - 34, Python. !
python win32com Python , COM . , COM , 1.
pypiwin32 pip, , .. - pip'.
, . COM-
class GtAlgoWrapper():
# com spec
_public_methods_ = ['solve','resultCallback', 'progressCallback',] #
_public_attrs_ = ['version',] #
_readonly_attr_ = []
_reg_clsid_ = '{2234314F-F3F1-2341-5BA9-5FD1E58F1526}' # uuid
_reg_progid_= 'GtAlgoWrapper' # id
_reg_desc_ = 'COM Wrapper For GTAlgo' #
def __init__(self):
self.version = '0.0.1'
self.progressOuterCb = None
# ...
def solve(self, data):
# ...
return ''
def resultCallback(self, obj):
# ...
return obj
def progressCallback(self, obj):
# 1 ,
#
if str(type(obj)) == "":
com_obj = win32com.client.Dispatch(obj)
try:
# 1 (progressCallback)
self.progressOuterCb = com_obj.progressCallback1C;
except AttributeError:
raise Exception('"progressCallback" ')
return obj
def main():
import win32com.server.register
win32com.server.register.UseCommandLine(GtAlgoWrapper)
print('registred')
if __name__ == '__main__':
main()
GtAlgoWrapper. 1 :
progressCallback1C(, )
(" = " + );
(" = " + );
//...
1()
//
= COM("GtAlgoWrapper");
//
.progressCalback();
//...
= ...; // JSON
.solve();
, . , dll 1C:
_dependencies = ['libwinpthread-1.dll',
'libgcc_s_dw2-1.dll',
# ...,
'GtRouting0-0-1.dll']
def solve(self, data):
prefix_path = 'C:/release'
#
try:
for dep in self._dependencies:
ctypes.cdll.LoadLibrary(os.path.join(prefix_path, dep))
#
lib = ctypes.cdll.LoadLibrary(os.path.join(prefix_path, 'GtAlgo0-0-1.dll'))
except WindowsError:
raise Exception('cant load' + dep)
solve_func = getattr(lib, '_ZN6GtAlgo5solveEPKcPFviS1_ES3_')
#
StatusCallback = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
ResultCallback = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
scb_func = StatusCallback(self.progressOuterCb)
rcb_func = ResultCallback(self.resultOuterCb)
# 1C DLL. Magic!
if self.resultOuterCb is None:
raise Exception('resultCallback function is not Set')
if self.progressOuterCb is None:
raise Exception('progressCallback function is not Set')
#
solve_func(ctypes.c_char_p(data), scb_func, rcb_func)
, python-, GtAlgoWrapper, 1.
dll 1C , .
!
https://habrahabr.ru/post/332082/
