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U++ core app as DLL: memory manager problems? [message #23174]

Wed, 23 September 2009 00:19

Mindtraveller
Messages: 917
Registered: August 2007
Location: Russia, Moscow rgn.

Experienced Contributor

I'd like to use U++ as a platform for developing complex dynamic libraries for current work project.
This dynalic library will be crossplatform (Win/POSIX) and will be attached to a number of applications written in U++ (Win, POSIX) and Delphi (Win).

Provided I export functions with POD parameters, should I expect any run-time casualities/problems with U++ memory manager?

[Updated on: Wed, 23 September 2009 00:20]

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Re: U++ core app as DLL: memory manager problems? [message #23181 is a reply to message #23174]

Thu, 24 September 2009 09:51

mirek
Messages: 13975
Registered: November 2005

Ultimate Member

Mindtraveller wrote on Tue, 22 September 2009 18:19

As long as the interface does not expect that client code directly allocates or frees DLLs heap, everything should be OK.

In fact, at least in Win32, most DLLs I have seen (including good old OLE interfaces) are designed in a way that specifically avoid this problem.

Example: this inteface would make things go mad:

Client code:

DllX *x = DllCreateX();
....
delete x;

and this is correct:

DllX *x = DllCreateX();
....
DllDeleteX(x);

DllX *x = DllCreateX();
....
x->Delete();

Mirek

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