callback

sins.py

@@ -8,24 +8,32 @@ import ctypes
 class Sins:
     def __init__(self):
         self.seed = open('./build/scrap.asm.2.o', 'rb').read()
-        self.pic = self.pic_load()
+        self.pic = self.pic_load(self.seed)
+        self.callback = ctypes.PYFUNCTYPE(None, ctypes.py_object)(self.callme)
 
-    def pic_load(self):
+    def pic_load(self, seedling):
+        size = len(seedling)
         prot = (mmap.PROT_READ | mmap.PROT_WRITE | mmap.PROT_EXEC)
-        page = mmap.mmap(-1, len(self.seed), prot=prot)
-        page.write(self.seed)
-        addr = ctypes.addressof((ctypes.c_char * len(self.seed)).from_buffer(page))
+        page = mmap.mmap(-1, size, prot=prot)
+        page.write(seedling)
+        addr = ctypes.addressof((ctypes.c_char * size).from_buffer(page))
+
         func = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_void_p, ctypes.c_uint)(addr)
         func.page = page
+        func.addr = addr
+        func.size = size
 
-        return func(addr, len(self.seed))
+        return func
+
+    def callme(self):
+        print('So Happy.')
 
 if __name__ == '__main__':
     import pprint
     pp = pprint.PrettyPrinter()
 
     sins = Sins()
-    print('Seed')
-    pp.pprint(sins.seed)
+
     print('pic_load')
-    pp.pprint(sins.pic_load())
+
+    pp.pprint(sins.pic(sins.callback, sins.pic.size))