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// -*- C++ -*-
//=============================================================================
/**
* @file Nested_Upcall_Guard.h
*
* @author Chris Cleeland <cleeland@ociweb.com>
*/
//=============================================================================
#ifndef TAO_NESTED_UPCALL_GUARD_H
#define TAO_NESTED_UPCALL_GUARD_H
#include /**/ "ace/pre.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/Transport.h"
#include "tao/ORB_Core.h"
#include "tao/ORB_Core_TSS_Resources.h"
#include "tao/debug.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
/**
* @class Nested_Upcall_Guard
*
* @brief: Magic class that sets the status of the thread in the
* TSS.
*
* This class was originally internal to the Wait_On_LF_NoUpcall
* implementation, but now it needs to be shared with the LF
* Connect wait as well.
*/
class Nested_Upcall_Guard
{
public:
// Maybe we should instead just take in a ptr to
// TAO_ORB_Core_TSS_Resources? Or at least ORB_Core*?
explicit Nested_Upcall_Guard (TAO_Transport *t, bool enable=true)
: t_ (t),
enable_ (enable)
{
if (!this->enable_)
{
return;
}
TAO_ORB_Core_TSS_Resources *tss =
t_->orb_core ()->get_tss_resources ();
tss->upcalls_temporarily_suspended_on_this_thread_ = true;
if (TAO_debug_level > 6)
TAOLIB_DEBUG ((LM_DEBUG,
"TAO (%P|%t) - Wait_On_LF_No_Upcall[%d]::wait, "
"disabling upcalls\n", t->id ()));
}
~Nested_Upcall_Guard ()
{
if (!this->enable_)
{
return;
}
TAO_ORB_Core_TSS_Resources *tss =
this->t_->orb_core ()->get_tss_resources ();
tss->upcalls_temporarily_suspended_on_this_thread_ = false;
if (TAO_debug_level > 6)
{
TAOLIB_DEBUG ((LM_DEBUG,
"TAO (%P|%t) - Wait_On_LF_No_Upcall[%d]::wait, "
"re-enabling upcalls\n", this->t_->id ()));
}
}
private:
Nested_Upcall_Guard ();
Nested_Upcall_Guard (const Nested_Upcall_Guard&) = delete;
Nested_Upcall_Guard &operator= (const Nested_Upcall_Guard&) = delete;
Nested_Upcall_Guard (Nested_Upcall_Guard&&) = delete;
Nested_Upcall_Guard &operator= (Nested_Upcall_Guard&&) = delete;
private:
/// Pointer to the transport that we plan to use.
TAO_Transport *t_;
/// A flag to support conditional waiting in the LF_Connect_Strategy
bool enable_;
};
}
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_NESTED_UPCALL_GUARD_H */
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