Re: libpq WSACleanup is not needed

Alvaro Herrera wrote:
> Magnus Hagander wrote:
>> Andrew Chernow wrote:
>>> WSACleanup is not really needed during a PQfinish.  Its horribly slow if
>>>  the library ref count is 0 and it actually unloads the winsock library,
>>> adds 225ms to PQfinish.
>>>
>>> Solution:
>>> A) Call WSAStartup once and never clean it up.  When the app dies, so do
>>> the ref counts and winsock is automatically unloaded.
> 
>> If you want to override this behavior today, you can just call
>> WSAStartup() in your application, and it should never happen. Right?
> 
> Or perhaps use _init() and _fini() or the Win32 equivalents?
> 

The Win32 equivalent is DllMain, which I believe only works when your a 
dll.  Although, from the WSAStartup docs:

"the WSAStartup function should not be called from the DllMain function 
in a application DLL. This can potentially cause deadlocks."

That doesn't sound inviting.  C++ static intializers would probably 
work, if isolated in some small far away distant project file with an 
ugly file name.

Outside of user-land work arounds, the real fix would be to have a libpq 
library init and shutdown (shutdown only useful for those wanting to 
free resources or re-init libpq differently).  Not sure there's any 
interest in this idea.

-- 
Andrew Chernow
eSilo, LLC
every bit counts
http://www.esilo.com/