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#include "tao/LF_CH_Event.h"
#include "tao/LF_Follower.h"
#include "tao/debug.h"
#include "tao/Connection_Handler.h"
#include "tao/Transport.h"
ACE_RCSID(tao,
LF_Invocation_Event,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
TAO_LF_CH_Event::TAO_LF_CH_Event (void)
: TAO_LF_Event (),
prev_state_ (TAO_LF_Event::LFS_IDLE)
{
}
TAO_LF_CH_Event::~TAO_LF_CH_Event (void)
{
}
int
TAO_LF_CH_Event::bind (TAO_LF_Follower *follower)
{
return this->followers_.bind (follower, 0);
}
int
TAO_LF_CH_Event::unbind (TAO_LF_Follower *follower)
{
return this->followers_.unbind (follower);
}
void
TAO_LF_CH_Event::state_changed_i (int new_state)
{
if (this->state_ != new_state)
{
this->validate_state_change (new_state);
if (TAO_debug_level > 9)
{
size_t id = 0;
TAO_Connection_Handler *ch = 0;
if ((ch = dynamic_cast<TAO_Connection_Handler *> (this))
&& ch->transport ())
{
id = ch->transport ()->id ();
}
ACE_DEBUG ((LM_DEBUG, "TAO (%P|%t) - TAO_LF_CH_Event[%d]::"
"state_changed_i, state %C->%C\n",
id,
TAO_LF_Event::state_name(prev_state_),
TAO_LF_Event::state_name(state_)));
}
}
ACE_MT (ACE_GUARD (TAO_SYNCH_MUTEX, guard, this->followers_.mutex ()));
HASH_MAP::iterator end_it = this->followers_.end ();
for (HASH_MAP::iterator it = this->followers_.begin (); it != end_it ; ++it)
{
it->ext_id_->signal ();
}
}
void
TAO_LF_CH_Event::validate_state_change (int new_state)
{
if (this->state_ == TAO_LF_Event::LFS_IDLE)
{
// From the LFS_IDLE state we can only become active.
if (new_state == TAO_LF_Event::LFS_CONNECTION_WAIT)
{
this->prev_state_ = this->state_;
this->state_ = new_state;
}
return;
}
else if (this->state_ == TAO_LF_Event::LFS_CONNECTION_WAIT)
{
// Only a few states are possible from CONNECTION_WAIT states
if (new_state == TAO_LF_Event::LFS_CONNECTION_CLOSED
|| new_state == TAO_LF_Event::LFS_SUCCESS)
{
this->prev_state_ = this->state_;
this->state_ = new_state;
}
return;
}
else if (this->state_ == TAO_LF_Event::LFS_SUCCESS)
{
if (new_state == TAO_LF_Event::LFS_CONNECTION_CLOSED)
{
this->prev_state_ = this->state_;
this->state_ = new_state;
}
return;
}
else if (this->state_ == TAO_LF_Event::LFS_TIMEOUT)
{
if (new_state == TAO_LF_Event::LFS_CONNECTION_CLOSED)
{
// Dont reset the previous state
this->state_ = new_state;
}
}
return;
}
int
TAO_LF_CH_Event::successful (void) const
{
if (this->prev_state_ == TAO_LF_Event::LFS_CONNECTION_WAIT)
return this->state_ == TAO_LF_Event::LFS_SUCCESS;
return this->state_ == TAO_LF_Event::LFS_CONNECTION_CLOSED;
}
int
TAO_LF_CH_Event::error_detected (void) const
{
if (this->prev_state_ == TAO_LF_Event::LFS_CONNECTION_WAIT)
return this->state_ == TAO_LF_Event::LFS_CONNECTION_CLOSED;
return this->state_ == TAO_LF_Event::LFS_TIMEOUT;
}
void
TAO_LF_CH_Event::set_state (int new_state)
{
// @@ NOTE: Is this still required?
if (this->is_state_final () == 0
&& new_state == TAO_LF_Event::LFS_TIMEOUT)
{
this->state_ = new_state;
if (TAO_debug_level > 9)
{
size_t id = 0;
TAO_Connection_Handler *ch = 0;
if ((ch = dynamic_cast<TAO_Connection_Handler *> (this)) &&
ch->transport ())
{
id = ch->transport ()->id ();
}
ACE_DEBUG ((LM_DEBUG, "TAO (%P|%t) - TAO_LF_CH_Event[%d]::set_state, "
"state_ is LFS_TIMEOUT\n", id));
}
}
}
int
TAO_LF_CH_Event::is_state_final (void)
{
return this->state_ == TAO_LF_Event::LFS_CONNECTION_CLOSED;
}
TAO_END_VERSIONED_NAMESPACE_DECL
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