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// $Id$
// ============================================================================
//
// = LIBRARY
// ace
//
// = FILENAME
// Thread_Exit.h
//
// = AUTHOR
// Carlos O'Ryan <coryan@uci.edu>
//
// ============================================================================
#ifndef ACE_THREAD_EXIT_H
#define ACE_THREAD_EXIT_H
#include "ace/pre.h"
#include "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/OS.h"
#include "ace/Thread_Control.h"
class ACE_Export ACE_Thread_Exit
{
// = TITLE
// Keep exit information for a Thread in thread specific storage.
// so that the thread-specific exit hooks will get called no
// matter how the thread exits (e.g., via <ACE_Thread::exit>, C++
// or Win32 exception, "falling off the end" of the thread entry
// point function, etc.).
//
// = DESCRIPTION
// This clever little helper class is stored in thread-specific
// storage using the <ACE_TSS> wrapper. When a thread exits the
// <ACE_TSS::cleanup> function deletes this object, thereby
// closing it down gracefully.
public:
ACE_Thread_Exit (void);
// Capture the Thread that will be cleaned up automatically.
void thr_mgr (ACE_Thread_Manager *tm);
// Set the <ACE_Thread_Manager>.
~ACE_Thread_Exit (void);
// Destructor calls the thread-specific exit hooks when a thread
// exits.
static ACE_Thread_Exit *instance (void);
// Singleton access point.
static void cleanup (void *instance, void *);
// Cleanup method, used by the <ACE_Object_Manager> to destroy the
// singleton.
private:
friend class ACE_OS_Object_Manager;
// Allow OS_Object_Manager to reset the status of <is_constructed_>.
ACE_Thread_Control thread_control_;
// Automatically add/remove the thread from the
// <ACE_Thread_Manager>.
static u_int is_constructed_;
// Used to detect whether we should create a new instance (or not)
// within the instance method -- we don't trust the instance_ ptr
// because the destructor may have run (if ACE::fini() was called).
// See bug #526.
// We don't follow the singleton pattern due to dependency issues.
};
#include "ace/post.h"
#endif /* ACE_THREAD_EXIT_H */
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