diff options
Diffstat (limited to 'ACE/examples/Reactor/WFMO_Reactor/Abandoned.cpp')
-rw-r--r-- | ACE/examples/Reactor/WFMO_Reactor/Abandoned.cpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/ACE/examples/Reactor/WFMO_Reactor/Abandoned.cpp b/ACE/examples/Reactor/WFMO_Reactor/Abandoned.cpp new file mode 100644 index 00000000000..c860fc2810c --- /dev/null +++ b/ACE/examples/Reactor/WFMO_Reactor/Abandoned.cpp @@ -0,0 +1,141 @@ +// $Id$ + +// ============================================================================ +// +// = LIBRARY +// examples +// +// = FILENAME +// Abandoned.cpp +// +// = DESCRIPTION +// +// Tests the WFMO_Reactor's ability to handle abandoned mutexes. +// +// = AUTHOR +// +// Irfan Pyarali <irfan@cs.wustl.edu> +// +// ============================================================================ + +#include "ace/OS_main.h" + +#if defined (ACE_WIN32) + +#include "ace/Reactor.h" +#include "ace/Thread_Manager.h" +#include "ace/Process_Mutex.h" +#include "ace/Auto_Event.h" + +ACE_RCSID(WFMO_Reactor, Abandoned, "$Id$") + +class Event_Handler : public ACE_Event_Handler +{ +public: + int handle_signal (int signum, + siginfo_t * = 0, + ucontext_t * = 0); + + int handle_timeout (const ACE_Time_Value &tv, + const void *arg = 0); + + ACE_Auto_Event handle_; + ACE_Process_Mutex *mutex_; + int iterations_; +}; + +static int abandon = 1; + +static ACE_THR_FUNC_RETURN +worker (void *data) +{ + Event_Handler *handler = (Event_Handler *) data; + + handler->handle_.signal (); + handler->mutex_->acquire (); + + if (!abandon) + handler->mutex_->release (); + + return 0; +} + +int +Event_Handler::handle_signal (int, + siginfo_t *s, + ucontext_t *) +{ + ACE_HANDLE handle = s->si_handle_; + if (handle == this->handle_.handle ()) + ACE_Reactor::instance ()->register_handler (this, + this->mutex_->lock ().proc_mutex_); + else + { + ACE_Reactor::instance ()->remove_handler (this->mutex_->lock ().proc_mutex_, + ACE_Event_Handler::DONT_CALL); + delete this->mutex_; + } + + return 0; +} + +int +Event_Handler::handle_timeout (const ACE_Time_Value &, + const void *) +{ + --this->iterations_; + ACE_DEBUG ((LM_DEBUG, + "(%t) timeout occured @ %T, iterations left %d\n", + this->iterations_)); + + if (this->iterations_ == 0) + { + ACE_Reactor::instance ()->remove_handler (this->handle_.handle (), + ACE_Event_Handler::DONT_CALL); + + ACE_Reactor::instance ()->cancel_timer (this); + + ACE_Reactor::end_event_loop (); + } + else + { + ACE_NEW_RETURN (this->mutex_, + ACE_Process_Mutex, + -1); + int result = ACE_Thread_Manager::instance ()->spawn (&worker, this); + ACE_ASSERT (result != -1); + ACE_UNUSED_ARG (result); + } + + return 0; +} + +int +ACE_TMAIN (int , ACE_TCHAR *[]) +{ + Event_Handler event_handler; + + event_handler.iterations_ = 5; + int result = ACE_Reactor::instance ()->register_handler + (&event_handler, + event_handler.handle_.handle ()); + ACE_ASSERT (result == 0); + + ACE_Time_Value timeout (2); + result = ACE_Reactor::instance ()->schedule_timer (&event_handler, + 0, + timeout, + timeout); + ACE_ASSERT (result != -1); + + ACE_Reactor::run_event_loop (); + + return 0; +} +#else /* !ACE_WIN32 */ +int +ACE_TMAIN (int , ACE_TCHAR *[]) +{ + return 0; +} +#endif /* ACE_WIN32 */ |