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// $Id$
#include "ace/Thread_Exit.h"
#include "ace/OS.h"
#include "ace/Synch.h"
#include "ace/Managed_Object.h"
ACE_RCSID(ace, Thread_Exit, "$Id$")
u_int ACE_Thread_Exit::is_constructed_ = 0;
#if defined (ACE_HAS_SIG_C_FUNC)
extern "C" void
ACE_Thread_Exit_cleanup (void *instance, void *arg)
{
ACE_Thread_Exit::cleanup (instance, arg);
}
#endif
void
ACE_Thread_Exit::cleanup (void *instance, void *)
{
ACE_OS_TRACE ("ACE_Thread_Exit::cleanup");
delete (ACE_TSS_TYPE (ACE_Thread_Exit) *) instance;
ACE_Thread_Exit::is_constructed_ = 0;
// All TSS objects have been destroyed. Reset this flag so
// ACE_Thread_Exit singleton can be created again.
}
// NOTE: this preprocessor directive should match the one in
// ACE_Task_Base::svc_run () below. This prevents the two statics
// from being defined.
ACE_Thread_Exit *
ACE_Thread_Exit::instance (void)
{
#if defined (ACE_HAS_THREAD_SPECIFIC_STORAGE) || defined (ACE_HAS_TSS_EMULATION)
ACE_OS_TRACE ("ACE_Thread_Exit::instance");
// Determines if we were dynamically allocated.
static ACE_TSS_TYPE (ACE_Thread_Exit) *instance_;
// Implement the Double Check pattern.
if (ACE_Thread_Exit::is_constructed_ == 0)
{
ACE_MT (ACE_Thread_Mutex *lock =
ACE_Managed_Object<ACE_Thread_Mutex>::get_preallocated_object
(ACE_Object_Manager::ACE_THREAD_EXIT_LOCK);
ACE_GUARD_RETURN (ACE_Thread_Mutex, ace_mon, *lock, 0));
if (ACE_Thread_Exit::is_constructed_ == 0)
{
ACE_NEW_RETURN (instance_,
ACE_TSS_TYPE (ACE_Thread_Exit),
0);
ACE_Thread_Exit::is_constructed_ = 1;
// Register for destruction with ACE_Object_Manager.
#if defined ACE_HAS_SIG_C_FUNC
ACE_Object_Manager::at_exit (instance_,
ACE_Thread_Exit_cleanup,
0);
#else
ACE_Object_Manager::at_exit (instance_,
ACE_Thread_Exit::cleanup,
0);
#endif /* ACE_HAS_SIG_C_FUNC */
}
}
return ACE_TSS_GET (instance_, ACE_Thread_Exit);
#else
return 0;
#endif /* ACE_HAS_THREAD_SPECIFIC_STORAGE || ACE_HAS_TSS_EMULATION */
}
// Grab hold of the Task * so that we can close() it in the
// destructor.
ACE_Thread_Exit::ACE_Thread_Exit (void)
{
ACE_OS_TRACE ("ACE_Thread_Exit::ACE_Thread_Exit");
}
// Set the this pointer...
void
ACE_Thread_Exit::thr_mgr (ACE_Thread_Manager *tm)
{
ACE_OS_TRACE ("ACE_Thread_Exit::thr_mgr");
if (tm != 0)
this->thread_control_.insert (tm, 0);
}
// When this object is destroyed the Task is automatically closed
// down!
ACE_Thread_Exit::~ACE_Thread_Exit (void)
{
ACE_OS_TRACE ("ACE_Thread_Exit::~ACE_Thread_Exit");
}
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