On Tue, Jul 8, 2008 at 6:46 PM, Jeremy Pack <rostovpack@gmail.com> wrote:
Robert,
On Tue, Jul 8, 2008 at 4:12 PM, Robert Dailey <rcdailey@gmail.com> wrote:
<snip>
Yes, your explanation helps out tremendously. However, I noticed that load_single_library() simply deletes (by allowing it to fall out of scope) the shared_library object it creates as the function returns. Does this mean that it does not close the library when it is destroyed? So I will need to be responsible for calling shared_library::close() to release the DLL when I am done using it?
The load_single_library function is a convenience function designed for the simple case in which you don't need to close the shared library until program termination. For more complex usage, just use a shared_library object.
I noticed also (you mentioned this) that there's an auto_close construction parameter in shared_library, however this value does not seem to get used anywhere. In fact, shared_library does not have a destructor that I can see. Does automatic unloading of shared libraries not work on destruction of shared_library objects even when setting auto_close to true?
You're right - I must have accidentally removed the destructor when I last refactored. Thanks! I'll fix it.
I'm assuming that by closing a shared_library, any factory objects created from that shared_library will not function anymore, since it won't have access to the classes it is creating.
Yep. Your program will crash or do something worse.
Thanks again for your continued help!
PS: Do you have an online version of the trunk's documentation for Boost.Extension? I haven't been able to find this. Thank you.
Docs are available at: http://redshoelace.dlinkddns.com:9080/boost/doc/extension/index.html
Thank you, this cleared up all of my confusion. What I'm doing now is keeping a single factory_map object as a member of my class, and each time the user wants to "concatenate" factories, I simply call load_single_library() and pass in my existing factory_map member. Things seem to be working well so far. I appreciate your help! Great library!