I am still using ghc 6.4.2 for creating my DLL and, as long as the DLL does not open a file, releasing the DLL works fine. I have not yet tried ghc 6.5. Michael SevenThunders wrote:
Michael Marte wrote:
Hello *,
before filing a bug report, I want others to comment on my problem. Maybe it's my fault, not ghc's.
I wrapped up some Haskell modules in a Win32 DLL. Loading the DLL dynamically (with LoadLibrary) works fine. However, whether I actually use the library or not, the program (an application with MFC GUI) crashes upon termination.
I was wondering if there has been any recent progress on this issue. I have a binary windows distribution of GHC 6.5. from May 02 2006.
I created a Haskell DLL that is called from a C stub, which ultimately gets called from Matlab. I'm not sure if Matlab loads and unloads the DLL everytime it's called, but it definately crashes Matlab if one tries to unload the DLL from inside Matlab (using Matlab's clear command). The crash occurs even if no Haskell code is actually called from Matlab. It suffices to simply load the Haskell DLL and then unload it.
If you do call the DLL it will work for the first few times and then eventually crash. Presumably there is some kind of memory leak as alluded to elsewhere in this thread. I'm looking for usable workarounds here.