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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// Reactor_Exceptions_Test.cpp
//
// = DESCRIPTION
// This is a test that makes sure the <ACE_Reactor> works
// correctly in the face of C++ exceptions and threads.
//
// = AUTHOR
// Luca Priorelli <lucapri@mbox.vol.it> and Douglas C. Schmidt <schmidt@cs.wustl.edu>
//
// ============================================================================
#include "ace/Reactor.h"
#include "ace/SOCK_Dgram.h"
#include "ace/INET_Addr.h"
#include "ace/Thread_Manager.h"
#include "test_config.h"
ACE_RCSID(tests, Reactor_Exceptions_Test, "$Id$")
#if defined (ACE_HAS_EXCEPTIONS)
#if defined (ACE_WIN32) && defined (ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS)
static void
throw_exception (void)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) throw exception\n")));
// Cause a Win32 structured exception.
*(char *) 0 = 0;
}
#else
// Just need a simple exception class.
class Except {};
static void
throw_exception (void)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) throw exception\n")));
throw Except ();
}
#endif /* ACE_WIN32 && ACE_HAS_WIN32_STRUCTURAL_EXCEPTIONS */
class My_Handler : public ACE_Event_Handler, public ACE_SOCK_Dgram
{
public:
My_Handler (const ACE_INET_Addr &local_addr);
virtual ACE_HANDLE get_handle (void) const;
virtual int handle_input (ACE_HANDLE handle);
};
My_Handler::My_Handler (const ACE_INET_Addr &local_addr)
: ACE_SOCK_Dgram (local_addr)
{
}
ACE_HANDLE
My_Handler::get_handle (void) const
{
return ACE_SOCK_Dgram::get_handle ();
}
int
My_Handler::handle_input (ACE_HANDLE)
{
ACE_TCHAR buf[BUFSIZ];
ACE_INET_Addr from_addr;
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("Activity occurred on handle %d!\n"),
ACE_SOCK_Dgram::get_handle ()));
ssize_t n = ACE_SOCK_Dgram::recv (buf,
sizeof buf,
from_addr);
if (n == -1)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("handle_input")));
else
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("got buf = %s\n"),
buf));
throw_exception ();
return 0;
}
class My_Reactor : public ACE_Reactor
{
public:
virtual int handle_events (ACE_Time_Value *max_wait_time)
{
int ret = 0;
try
{
# if defined (__BORLANDC__)
// BCB does not catch structured exceptions with catch (...).
// Actually, the ANSI spec says that system exceptions are not
// supposed to be caught with catch. Borland may add this, and
// make it "switchable" in the future...
try
{
# endif /* defined (__BORLANDC__) */
ret = ACE_Reactor::handle_events (max_wait_time);
# if defined (__BORLANDC__)
}
__except (EXCEPTION_EXECUTE_HANDLER)
{
// Probably should handle the details of the exception
// and throw something that represents the structured exception
throw "Win32 Structured Exception";
}
# endif /* defined (__BORLANDC__) */
}
catch (...)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT (" (%t) catch exception\n")));
ret = -1;
// do your thing, etc.
}
//}
return ret;
}
virtual int handle_events (ACE_Time_Value &max_wait_time)
{
return this->handle_events (&max_wait_time);
}
};
#if defined (ACE_HAS_THREADS)
static int
worker (void)
{
ACE_Reactor::instance ()->owner (ACE_OS::thr_self ());
for (;;)
if (ACE_Reactor::instance ()->handle_events () == -1)
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT (" (%t) exception return\n")));
break;
}
return 0;
}
#endif /* ACE_HAS_THREADS */
#endif /* ACE_HAS_EXCEPTIONS */
int
run_main (int argc, ACE_TCHAR *argv[])
{
ACE_START_TEST (ACE_TEXT ("Reactor_Exceptions_Test"));
#if defined (ACE_HAS_EXCEPTIONS)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("Starting tracing\n")));
u_short port = argc > 1 ? ACE_OS::atoi (argv[1]) : ACE_DEFAULT_SERVER_PORT;
ACE_INET_Addr local_addr (port);
ACE_INET_Addr remote_addr (port,
ACE_DEFAULT_SERVER_HOST);
My_Reactor reactor;
ACE_Reactor::instance (&reactor);
ACE_Thread_Manager *thr_mgr = ACE_Thread_Manager::instance ();
{
// Make sure handler gets cleaned up before reactor by putting it in its
// own scope
My_Handler handler (local_addr);
if (ACE_Reactor::instance ()->register_handler
(&handler,
ACE_Event_Handler::READ_MASK) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("register_handler")),
-1);
#if defined (ACE_HAS_THREADS)
thr_mgr->spawn (ACE_THR_FUNC (worker));
#else
// Need to figure out how to implement this test.
ACE_ERROR ((LM_INFO,
ACE_TEXT ("threads not supported on this platform\n")));
#endif /* ACE_HAS_THREADS */
ACE_SOCK_Dgram dgram (ACE_sap_any_cast (ACE_INET_Addr &));
for (size_t i = 0; i < ACE_MAX_ITERATIONS; i++)
dgram.send (ACE_TEXT ("Hello"),
sizeof (ACE_TEXT ("Hello")),
remote_addr);
// Barrier to wait for the other thread to return.
thr_mgr->wait ();
handler.close ();
dgram.close ();
}
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT (" (%t) exiting main\n")));
#else
ACE_UNUSED_ARG (argc);
ACE_UNUSED_ARG (argv);
ACE_ERROR ((LM_INFO,
ACE_TEXT ("C++ exception support not enabled on this platform\n")));
#endif /* ACE_HAS_EXCEPTIONS */
ACE_END_TEST;
return 0;
}
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