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87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
// -*- C++ -*-
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//==========================================================================
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/**
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* @file Thread_Semaphore.h
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*
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* $Id: Thread_Semaphore.h 95807 2012-06-01 12:44:19Z johnnyw $
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*
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* Moved from Synch.h.
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*
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* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
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*/
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//==========================================================================
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#ifndef ACE_THREAD_SEMAPHORE_H
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#define ACE_THREAD_SEMAPHORE_H
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#include /**/ "ace/pre.h"
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#include /**/ "ace/ACE_export.h"
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#if !defined (ACE_LACKS_PRAGMA_ONCE)
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# pragma once
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#endif /* ACE_LACKS_PRAGMA_ONCE */
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#if !defined (ACE_HAS_THREADS)
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# include "ace/Null_Semaphore.h"
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#else /* ACE_HAS_THREADS */
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// ACE platform supports some form of threading.
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#include "ace/Semaphore.h"
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ACE_BEGIN_VERSIONED_NAMESPACE_DECL
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/**
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* @class ACE_Thread_Semaphore
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*
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* @brief Wrapper for Dijkstra style general semaphores that work
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* only within one process.
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*/
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class ACE_Export ACE_Thread_Semaphore : public ACE_Semaphore
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{
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public:
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/// Initialize the semaphore, with an initial value of @a count,
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/// maximum value of @a max, and unlocked by default.
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ACE_Thread_Semaphore (unsigned int count = 1, // By default make this unlocked.
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const ACE_TCHAR *name = 0,
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void * = 0,
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int max = 0x7FFFFFFF);
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/// Default destructor.
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~ACE_Thread_Semaphore (void);
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/// Dump the state of an object.
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void dump (void) const;
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/// Declare the dynamic allocation hooks.
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ACE_ALLOC_HOOK_DECLARE;
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};
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/*****************************************************************************/
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template <class T> class ACE_Malloc_Lock_Adapter_T;
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/**
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* @brief Template specialization of ACE_Malloc_Lock_Adapter_T for
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* ACE_Thread_Semaphore.
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*
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* This is needed since the ctor for ACE_Thread_Semaphore doesn't match
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* the standard form used by other lock strategy classes.
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*/
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template<>
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class ACE_Export ACE_Malloc_Lock_Adapter_T<ACE_Thread_Semaphore>
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{
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public:
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ACE_Thread_Semaphore * operator () (const ACE_TCHAR *name);
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};
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ACE_END_VERSIONED_NAMESPACE_DECL
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#if defined (__ACE_INLINE__)
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#include "ace/Thread_Semaphore.inl"
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#endif /* __ACE_INLINE__ */
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#endif /* !ACE_HAS_THREADS */
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#include /**/ "ace/post.h"
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#endif /* ACE_THREAD_SEMAPHORE_H */
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