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//=============================================================================
/**
* @file Handle_Gobbler.h
*
* $Id$
*
* @author Kirthika Parameswaran <kirthika@cs.wustl.edu>
* @author Irfan Pyarali <irfan@cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_HANDLE_GOBBLER_H
#define ACE_HANDLE_GOBBLER_H
#include "ace/pre.h"
#include "ace/OS.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Unbounded_Set.h"
/**
* @class ACE_Handle_Gobbler
*
* @brief This class gobbles up handles.
*
* This is useful when we need to control the number of handles
* available for a process. This class is mostly used for
* testing purposes.
*/
class ACE_Handle_Gobbler
{
public:
/// Destructor. Cleans up any remaining handles.
inline ~ACE_Handle_Gobbler (void);
/**
* Handles are opened continously until the process runs out of
* them, and then <n_handles_to_keep_available> handles are closed
* (freed) thereby making them usable in the future.
*/
inline int consume_handles (size_t n_handles_to_keep_available);
/// Free up <n_handles>.
inline int free_handles (size_t n_handles);
/// All remaining handles are closed.
inline void close_remaining_handles (void);
private:
typedef ACE_Unbounded_Set<ACE_HANDLE> HANDLE_SET;
/// The container which holds the open descriptors.
HANDLE_SET handle_set_;
};
#include "ace/Handle_Gobbler.i"
#include "ace/post.h"
#endif /* ACE_HANDLE_GOBBLER_H */
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