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123 lines
3.5 KiB
C++
123 lines
3.5 KiB
C++
/**
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* @file Recursive_Thread_Mutex.cpp
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*
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* $Id: Recursive_Thread_Mutex.cpp 91688 2010-09-09 11:21:50Z johnnyw $
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*
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* Originally in Synch.cpp
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*
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* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
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*/
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#include "ace/Recursive_Thread_Mutex.h"
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#if defined (ACE_HAS_THREADS)
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#if !defined (__ACE_INLINE__)
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#include "ace/Recursive_Thread_Mutex.inl"
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#endif /* __ACE_INLINE__ */
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#include "ace/Log_Msg.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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ACE_ALLOC_HOOK_DEFINE(ACE_Recursive_Thread_Mutex)
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ACE_Recursive_Thread_Mutex::ACE_Recursive_Thread_Mutex (const ACE_TCHAR *name,
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ACE_mutexattr_t *arg)
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: removed_ (false)
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{
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::ACE_Recursive_Thread_Mutex");
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if (ACE_OS::recursive_mutex_init (&this->lock_,
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name,
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arg) == -1)
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ACE_ERROR ((LM_ERROR,
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ACE_TEXT ("%p\n"),
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ACE_TEXT ("recursive_mutex_init")));
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}
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ACE_Recursive_Thread_Mutex::~ACE_Recursive_Thread_Mutex (void)
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{
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::~ACE_Recursive_Thread_Mutex");
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this->remove ();
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}
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int
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ACE_Recursive_Thread_Mutex::remove (void)
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{
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::remove");
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int result = 0;
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if (this->removed_ == false)
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{
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this->removed_ = true;
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result = ACE_OS::recursive_mutex_destroy (&this->lock_);
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}
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return result;
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}
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// The counter part of the following two functions for Win32 are
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// located in file Synch.i
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ACE_thread_t
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ACE_Recursive_Thread_Mutex::get_thread_id (void)
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{
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::get_thread_id");
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#if defined (ACE_HAS_RECURSIVE_MUTEXES)
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// @@ The structure CriticalSection in Win32 doesn't hold the thread
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// handle of the thread that owns the lock. However it is still not
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// clear at this point how to translate a thread handle to its
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// corresponding thread id.
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errno = ENOTSUP;
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return ACE_OS::NULL_thread;
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#else
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ACE_thread_t owner_id;
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ACE_OS::mutex_lock (&this->lock_.nesting_mutex_);
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owner_id = this->lock_.owner_id_;
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ACE_OS::mutex_unlock (&this->lock_.nesting_mutex_);
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return owner_id;
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#endif /* ACE_WIN32 */
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}
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int
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ACE_Recursive_Thread_Mutex::get_nesting_level (void)
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{
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::get_nesting_level");
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#if defined (ACE_HAS_VXTHREADS) || defined (ACE_HAS_PHARLAP) || defined (ACE_HAS_WINCE)
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ACE_NOTSUP_RETURN (-1);
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#elif defined (ACE_HAS_RECURSIVE_MUTEXES)
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# if defined (ACE_WIN32)
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// This is really a Win32-ism...
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// Nothing inside of a CRITICAL_SECTION object should ever be
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// accessed directly. It is documented to change at any time.
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//
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// It has been reported that this this works for all three
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// architectures. However, this does not work on Win64 before SP1.
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return this->lock_.RecursionCount;
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# else
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ACE_NOTSUP_RETURN (-1);
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# endif /* ACE_WIN32 */
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#else
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int nesting_level = 0;
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ACE_OS::mutex_lock (&this->lock_.nesting_mutex_);
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nesting_level = this->lock_.nesting_level_;
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ACE_OS::mutex_unlock (&this->lock_.nesting_mutex_);
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return nesting_level;
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#endif /* !ACE_HAS_WINCE */
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}
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ACE_Recursive_Thread_Mutex::ACE_Recursive_Thread_Mutex (const ACE_Recursive_Thread_Mutex &)
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{
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}
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void
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ACE_Recursive_Thread_Mutex::dump (void) const
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{
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#if defined (ACE_HAS_DUMP)
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// ACE_TRACE ("ACE_Recursive_Thread_Mutex::dump");
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ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
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ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP));
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#endif /* ACE_HAS_DUMP */
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}
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ACE_END_VERSIONED_NAMESPACE_DECL
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#endif /* ACE_HAS_THREADS */
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