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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// DLL_Test.cpp
//
// = DESCRIPTION
// This test illustrates the use of <ACE_DLL> wrapper class.
//
// = AUTHOR
// Kirthika Parameswaran <kirthika@cs.wustl.edu>
//
// ============================================================================
#include "test_config.h" /* Include first to enable ACE_ASSERT. */
#include "ace/DLL.h"
#include "ace/Auto_Ptr.h"
# if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
# endif /* ACE_LACKS_PRAGMA_ONCE */
// Considering UNIX OS to be default.
# if defined (ACE_HAS_WIN32)
# define ACE_OBJ_SUFFIX ".obj"
# else
# define ACE_OBJ_SUFFIX ".o"
#endif
class Hello
{
// = TITLE
// The Hello class in the dynamically linkable library.
//
// = DESCRIPTION
// This class is used in this example to show how a library can
// be loaded on demand and its methods called on getting the
// symbols from the library.
public:
Hello (void)
{ }
~Hello (void)
{ }
void say_hello (void)
{
ACE_DEBUG ((LM_DEBUG,
"Hello\n"));
}
void say_next (void)
{
ACE_DEBUG ((LM_DEBUG,
"How are you?\n"));
}
};
// This function returns the Hello object pointer.
extern "C"
Hello *get_hello (void)
{
Hello *hello;
ACE_NEW_RETURN (hello,
Hello,
NULL);
return hello;
}
typedef Hello *(*TC) (void);
int
main (void)
{
ACE_START_TEST ("DLL_Test");
ACE_DLL ace_dll_obj;
// *done*@@ Kirthika, the following code is incorrect since you're
// trying to do a strcat() on a string literal... Make
// sure you ALWAYS run Purify on your code to find errors
// list this.
int retval = ace_dll_obj.open ("./DLL_Test"ACE_OBJ_SUFFIX);
if (retval != 0)
ACE_ERROR_RETURN ((LM_ERROR,
ace_dll_obj.error()),
-1);
TC f = (TC) ace_dll_obj.symbol ("get_hello");
if (f == 0)
ACE_ERROR_RETURN ((LM_ERROR,
ace_dll_obj.error()),
-1);
ACE_DEBUG ((LM_DEBUG,
"callling get_hello\n"));
auto_ptr <Hello> my_hello = f ();
// Make the method calls, now that the object pointer is available.
my_hello->say_hello ();
my_hello->say_next ();
ACE_END_TEST;
return 0;
}
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
template class auto_ptr <Hello>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#pragma instantiate auto_ptr <Hello>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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