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// This program tests out how the various objects can be loaded
// dynamically and method calls made on them.
#include "Magazine.h"
#include "ace/DLL.h"
#include "ace/Log_Msg.h"
#include <memory>
typedef Magazine* (*Magazine_Creator) ();
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
ACE_UNUSED_ARG (argc);
ACE_UNUSED_ARG (argv);
ACE_DLL dll;
int retval = dll.open (ACE_DLL_PREFIX ACE_TEXT("DLL_Today"));
if (retval != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.open"),
-1);
Magazine_Creator mc;
// Cast the void* to non-pointer type first - it's not legal to
// cast a pointer-to-object directly to a pointer-to-function.
void *void_ptr = dll.symbol (ACE_TEXT ("create_magazine"));
ptrdiff_t tmp = reinterpret_cast<ptrdiff_t> (void_ptr);
mc = reinterpret_cast<Magazine_Creator> (tmp);
if (mc == 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.symbol"),
-1);
}
{
std::unique_ptr<Magazine> magazine (mc ());
magazine->title ();
}
dll.close ();
// The other library is now loaded on demand.
retval = dll.open (ACE_DLL_PREFIX ACE_TEXT ("DLL_Newsweek"));
if (retval != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.open"),
-1);
}
// Cast the void* to non-pointer type first - it's not legal to
// cast a pointer-to-object directly to a pointer-to-function.
void_ptr = dll.symbol (ACE_TEXT ("create_magazine"));
tmp = reinterpret_cast<ptrdiff_t> (void_ptr);
mc = reinterpret_cast<Magazine_Creator> (tmp);
if (mc == 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.symbol"),
-1);
}
{
std::unique_ptr<Magazine> magazine (mc ());
magazine->title ();
}
dll.close ();
return 0;
}
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