Changes in / [45330ed:4416868] in sasmodels

File:

• sasmodels/kerneldll.py (modified) (6 diffs)

sasmodels/kerneldll.py

@@ -51 +51 @@
 import ctypes as ct
 from ctypes import c_void_p, c_int, c_longdouble, c_double, c_float
+import _ctypes
 
 import numpy as np
@@ -125 +126 @@
     if callable(model_info.get('Iq', None)):
         return PyModel(model_info)
-
+    
     dtype = np.dtype(dtype)
     if dtype == generate.F16:
@@ -138 +139 @@
     else:
         tempfile_prefix = 'sas_' + model_info['name'] + '128_'
-
+ 
     source = generate.convert_type(source, dtype)
     source_files = generate.model_sources(model_info) + [model_info['filename']]
@@ -188 +189 @@
     Call :meth:`release` when done with the kernel.
     """
+    
     def __init__(self, dllpath, model_info, dtype=generate.F32):
         self.info = model_info
@@ -217 +219 @@
         self.Iqxy = self.dll[generate.kernel_name(self.info, True)]
         self.Iqxy.argtypes = IQXY_ARGS + pd_args_2d + [fp]*Nfixed2d
+        
+        self.release()
 
     def __getstate__(self):
@@ -230 +234 @@
         kernel = self.Iqxy if q_input.is_2d else self.Iq
         return DllKernel(kernel, self.info, q_input)
-
+    
     def release(self):
         """
         Release any resources associated with the model.
         """
-        pass # TODO: should release the dll
+        if os.name == 'nt':
+            #dll = ct.cdll.LoadLibrary(self.dllpath)
+            dll = ct.CDLL(self.dllpath)
+            libHandle = dll._handle
+            #libHandle = ct.c_void_p(dll._handle)
+            del dll, self.dll
+            self.dll = None
+            #_ctypes.FreeLibrary(libHandle)
+            ct.windll.kernel32.FreeLibrary(libHandle)
+        else:    
+            pass