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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// Reactor_Dispatch_Order_Test.cpp
//
// = DESCRIPTION
// This is a simple test that checks the order of dispatching of
// ACE Reactors. Order should be: timeout, output, and then input.
//
// = AUTHOR
// Irfan Pyarali <irfan@cs.wustl.edu>
//
// ============================================================================
#include "test_config.h"
#include "ace/OS_NS_string.h"
#include "ace/Reactor.h"
#include "ace/Select_Reactor.h"
#include "ace/WFMO_Reactor.h"
#include "ace/Pipe.h"
#include "ace/ACE.h"
ACE_RCSID(tests, Reactor_Dispatch_Order_Test, "$Id$")
static const char *message =
"Hello there! Hope you get this message";
class Handler : public ACE_Event_Handler
{
public:
Handler (ACE_Reactor &reactor);
~Handler();
int handle_timeout (const ACE_Time_Value &tv,
const void *arg);
int handle_input (ACE_HANDLE fd);
int handle_output (ACE_HANDLE fd);
// We need to add MSG_OOB data transfer to this test to check the
// order of when <handle_exception> gets called. I tried with
// Windows 2000 but only one byte of the message came across as
// urgent data. The rest of the data was treated as normal! There
// was some explanation of Microsoft's TCP/IP deals with out-of-band
// data in "Out-of-Band Data and Push Bit in TCP/IP" in the MSDN
// library. However, I did not comprehend that well enough. If
// someone can make this work, please check the order of
// <handle_exception> getting called.
// int handle_exception (ACE_HANDLE fd);
ACE_Pipe pipe_;
int dispatch_order_;
};
Handler::Handler (ACE_Reactor &reactor)
: ACE_Event_Handler (&reactor),
dispatch_order_ (1)
{
// Create the pipe.
bool ok = true;
if (0 != this->pipe_.open ())
{
ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("pipe")));
ok = false;
}
else
{
// Register for all events.
if (0 != this->reactor ()->register_handler
(this->pipe_.read_handle (),
this,
ACE_Event_Handler::ALL_EVENTS_MASK))
{
ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("register")));
ok = false;
}
}
ACE_ASSERT (ok);
}
Handler::~Handler (void)
{
this->pipe_.close ();
}
int
Handler::handle_timeout (const ACE_Time_Value &,
const void *)
{
int me = this->dispatch_order_++;
if (me != 1)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("handle_timeout should be #1; it's %d\n"),
me));
else
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Handler::handle_timeout\n")));
return 0;
}
int
Handler::handle_output (ACE_HANDLE)
{
int me = this->dispatch_order_++;
if (me != 2)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("handle_output should be #2; it's %d\n"),
me));
else
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Handler::handle_output\n")));
#if defined (__OpenBSD__) || defined (ACE_VXWORKS) || defined (__Lynx__)
// All that we need written has been written, so don't
// call handle_output again.
this->reactor ()->mask_ops (this->pipe_.read_handle (),
ACE_Event_Handler::WRITE_MASK,
ACE_Reactor::CLR_MASK);
#endif /* __OpenBSD__ || ACE_VXWORKS || __Lynx__ */
return 0;
}
int
Handler::handle_input (ACE_HANDLE fd)
{
int me = this->dispatch_order_++;
if (me != 3)
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("handle_timeout should be #3; it's %d\n"),
me));
char buffer[BUFSIZ];
ssize_t result = ACE::recv (fd, buffer, sizeof buffer);
ACE_ASSERT (result == ssize_t (ACE_OS::strlen (message)));
buffer[result] = '\0';
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Handler::handle_input: %C\n"), buffer));
ACE_ASSERT (ACE_OS::strcmp (buffer,
message) == 0);
this->reactor ()->end_reactor_event_loop ();
return 0;
}
static void
test_reactor_dispatch_order (ACE_Reactor &reactor)
{
Handler handler (reactor);
// This should trigger a call to <handle_input>.
ssize_t result =
ACE::send_n (handler.pipe_.write_handle (),
message,
ACE_OS::strlen (message));
ACE_ASSERT (result == ssize_t (ACE_OS::strlen (message)));
// This should trigger a call to <handle_timeout>.
long retn =
reactor.schedule_timer (&handler,
0,
ACE_Time_Value (0));
ACE_ASSERT (retn != -1);
reactor.run_reactor_event_loop ();
result =
reactor.remove_handler (handler.pipe_.read_handle (),
ACE_Event_Handler::ALL_EVENTS_MASK |
ACE_Event_Handler::DONT_CALL);
ACE_ASSERT (result == 0);
}
int
run_main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Reactor_Dispatch_Order_Test"));
ACE_Select_Reactor select_reactor_impl;
ACE_Reactor select_reactor (&select_reactor_impl);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Testing ACE_Select_Reactor\n")));
test_reactor_dispatch_order (select_reactor);
// WinCE can't do the necessary Winsock 2 things for WFMO_Reactor.
#if defined (ACE_WIN32) && !defined (ACE_HAS_WINCE)
ACE_WFMO_Reactor wfmo_reactor_impl;
ACE_Reactor wfmo_reactor (&wfmo_reactor_impl);
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Testing ACE_WFMO_Reactor\n")));
test_reactor_dispatch_order (wfmo_reactor);
#endif /* ACE_WIN32 && !ACE_HAS_WINCE */
ACE_END_TEST;
return 0;
}
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