Hello,
I'm using nim to make a dynamic link library (dll) to be used by a python
program on Windows, and having a trouble.
I want to reuse the nim program, and I have to use not `ptr object` type but
`ref object` type it will be managed by GC.
(below is an example to the last.)
type
Hoge = ref object
val: int
var hoge: Hoge
Run
The python program call the dll's functions many time and `hoge` has to be
constructed then.
In the python program, a memory shortage problem is occurred. I think it is
caused because the dll doesn't free the memory.
Traceback (most recent call last):
...
OSError: exception: access violation writing ...
Run
So I tried the below code it is run at the end of the function so that GC
collects `hoge` object.
hoge = nil
Run
but there are no improvement...
There are a possibility that the cause isn't the memory occupied by dll, but
please leave that aside for now.
I want to know two points below:
* Is `hoge` object freed by above code ?
* If not, what is the equivalent code to `deallocate hoge` (`hoge` is `ptr
object`) for `ref object`?
# environment
* nim version : 0.18.0 [Windows: amd64]
Compiling is executed by the below code:
nim c --app:lib test.nim
Run
and functions which will be called by the python program have the below pragma:
{.cdecl, exportc, dynlib.}
Run
I'm Japanese so when my English is strange please excuse me. If you know
anything about this, Could you give me your advice?
Thank you.
