Re: [boost] Checking interest in DynamicLoad/DLL/DSO/Plugin library

Subject: Re: [boost] Checking interest in DynamicLoad/DLL/DSO/Plugin library
From: Niall Douglas (s_sourceforge_at_[hidden])
Date: 2014-09-02 05:49:53

On 2 Sep 2014 at 11:14, Antony Polukhin wrote:

> > 1) Notification of shared library unloading and loading.
> 
> Well, in DLL/DSO you can track loads unloads using some global variables:

I think he meant that he wants the ability to hook into the 
load/unload of some arbitrary DLL/DSO, so like a DLL/DSO local 
atexit() as it were.

This is trivial to implement, simply a static object defined per 
DLL/DSO which accepts a list of bound functions to call when it gets 
destructed.

Something kinda cool would be combining that hook with the 
pointer-to-DLL/DSO code I sent you, so you could have code like:

// Tell me when the DLL/DSO owning this string gets unloaded so I can
// delete my use of it
dll_from_ptr(str)->on_unload(std::bind(this, &remove_string, str));

Niall

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