Re: [Boost-users] boost::bind, C++ member function and C callback function

8 May 2007


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-----Original Message-----
From: boost-users-bounces@lists.boost.org 
[mailto:boost-users-bounces@lists.boost.org] On Behalf Of Li, 
PingShan (Kansas City)
Sent: Tuesday, May 08, 2007 7:44 AM
To: boost-users@lists.boost.org
Subject: Re: [Boost-users] boost::bind,C++ member function 
and C callback function
Changing the OpenSSL API is not an option for me.
Let's assume that the callback function accepts a void* 
parameter, can you show me an example that I
can bind C++ member function to a C callback function?
Untested:

typedef boost::function<void(void)>  fn_t;

void generic_c_callback(void * data)
{
	fn_t * f(reinterpret_cast<fn_t *>(data));
	if(f) (*f)(); 
      else log_oops("...");
	// delete f; ?
}

int main()
{	
	register_c_callback(generic_c_callback,new
fn_t(bind(a,something,something,something)));
}

I think something like this could work, but have never actually tried it
:-)

Sohail

Re: [Boost-users] boost::bind, C++ member function and C callback function

Sohail Somani