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// $Id$
#define ACE_BUILD_DLL
#include "ace/Reactor.h"
#include "ace/Reactor_Impl.h"
#include "ace/Handle_Set.h"
#include "ace/Service_Config.h"
#include "ace/Select_Reactor.h"
#include "ace/WFMO_Reactor.h"
#include "ace/Object_Manager.h"
#if !defined (__ACE_INLINE__)
#include "ace/Reactor.i"
#endif /* __ACE_INLINE__ */
ACE_ALLOC_HOOK_DEFINE(ACE_Reactor)
ACE_Reactor::ACE_Reactor (ACE_Reactor_Impl *impl)
: implementation_ (0),
delete_implementation_ (0)
{
this->implementation (impl);
if (this->implementation () == 0)
{
#if defined (ACE_WIN32) && !defined (ACE_USE_SELECT_REACTOR_FOR_REACTOR_IMPL)
ACE_NEW (impl, ACE_WFMO_Reactor);
#else /* ACE_WIN32 && !ACE_USE_SELECT_REACTOR_AS_REACTOR */
ACE_NEW (impl, ACE_Select_Reactor);
#endif /* ACE_WIN32 && !ACE_USE_SELECT_REACTOR_AS_REACTOR */
this->implementation (impl);
this->delete_implementation_ = 1;
}
}
ACE_Reactor::~ACE_Reactor (void)
{
if (this->delete_implementation_)
delete this->implementation ();
}
// Process-wide ACE_Reactor.
ACE_Reactor *ACE_Reactor::reactor_ = 0;
// Controls whether the Reactor is deleted when we shut down (we can
// only delete it safely if we created it!)
int ACE_Reactor::delete_reactor_ = 0;
// Terminate the eventloop.
sig_atomic_t ACE_Reactor::end_event_loop_ = 0;
ACE_Reactor *
ACE_Reactor::instance (void)
{
ACE_TRACE ("ACE_Reactor::instance");
if (ACE_Reactor::reactor_ == 0)
{
// Perform Double-Checked Locking Optimization.
ACE_MT (ACE_GUARD_RETURN (ACE_Recursive_Thread_Mutex, ace_mon,
*ACE_Static_Object_Lock::instance (), 0));
if (ACE_Reactor::reactor_ == 0)
{
ACE_NEW_RETURN (ACE_Reactor::reactor_, ACE_Reactor, 0);
ACE_Reactor::delete_reactor_ = 1;
}
}
return ACE_Reactor::reactor_;
}
ACE_Reactor *
ACE_Reactor::instance (ACE_Reactor *r)
{
ACE_TRACE ("ACE_Reactor::instance");
ACE_MT (ACE_GUARD_RETURN (ACE_Recursive_Thread_Mutex, ace_mon,
*ACE_Static_Object_Lock::instance (), 0));
ACE_Reactor *t = ACE_Reactor::reactor_;
// We can't safely delete it since we don't know who created it!
ACE_Reactor::delete_reactor_ = 0;
ACE_Reactor::reactor_ = r;
return t;
}
void
ACE_Reactor::close_singleton (void)
{
ACE_TRACE ("ACE_Reactor::close_singleton");
ACE_MT (ACE_GUARD (ACE_Recursive_Thread_Mutex, ace_mon,
*ACE_Static_Object_Lock::instance ()));
if (ACE_Reactor::delete_reactor_)
{
delete ACE_Reactor::reactor_;
ACE_Reactor::reactor_ = 0;
ACE_Reactor::delete_reactor_ = 0;
}
}
// Run the event loop until the <ACE_Reactor::handle_events>
// method returns -1 or the <end_event_loop> method
// is invoked.
int
ACE_Reactor::run_event_loop (void)
{
ACE_TRACE ("ACE_Reactor::run_event_loop");
while (ACE_Reactor::end_event_loop_ == 0)
{
int result = ACE_Reactor::instance ()->handle_events ();
if (ACE_Service_Config::reconfig_occurred ())
ACE_Service_Config::reconfigure ();
else if (result == -1)
return -1;
}
/* NOTREACHED */
return 0;
}
// Run the event loop until the <ACE_Reactor::handle_events>
// method returns -1, the <end_event_loop> method
// is invoked, or the <ACE_Time_Value> expires.
int
ACE_Reactor::run_event_loop (ACE_Time_Value &tv)
{
ACE_TRACE ("ACE_Reactor::run_event_loop");
while (ACE_Reactor::end_event_loop_ == 0)
{
int result = ACE_Reactor::instance ()->handle_events (tv);
if (ACE_Service_Config::reconfig_occurred ())
ACE_Service_Config::reconfigure ();
else if (result <= 0)
return result;
}
/* NOTREACHED */
return 0;
}
int
ACE_Reactor::end_event_loop (void)
{
ACE_TRACE ("ACE_Reactor::end_event_loop");
ACE_Reactor::end_event_loop_ = 1;
// Send a notification, but don't block if there's no one to receive
// it.
return ACE_Reactor::instance ()->notify
(0, ACE_Event_Handler::NULL_MASK, (ACE_Time_Value *) &ACE_Time_Value::zero);
}
int
ACE_Reactor::event_loop_done (void)
{
ACE_TRACE ("ACE_Reactor::event_loop_done");
return ACE_Reactor::end_event_loop_ != 0;
}
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