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Diffstat (limited to 'ACE/tests/Reactor_Dispatch_Order_Test.cpp')
-rw-r--r-- | ACE/tests/Reactor_Dispatch_Order_Test.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/ACE/tests/Reactor_Dispatch_Order_Test.cpp b/ACE/tests/Reactor_Dispatch_Order_Test.cpp new file mode 100644 index 00000000000..d6263f091d3 --- /dev/null +++ b/ACE/tests/Reactor_Dispatch_Order_Test.cpp @@ -0,0 +1,206 @@ +// $Id$ + +// ============================================================================ +// +// = 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; +} |