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// -*- C++ -*-
//==========================================================================
/**
* @file Pipe.h
*
* $Id$
*
* @author Doug Schmidt
*/
//==========================================================================
#ifndef ACE_PIPE_H
#define ACE_PIPE_H
#include "ace/pre.h"
#include "ace/ACE_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/OS.h"
/**
* @class ACE_Pipe
*
* @brief Provides a bidirectional "pipe" abstraction that is portable
* to Windows NT, SVR4 UNIX, and BSD UNIX.
*
* Uses "name" for lookup in the ACE service repository. Obtains
* the object and returns it as the appropriate type.
*/
class ACE_Export ACE_Pipe
{
public:
// = Initialization and termination.
/// Default constructor (does nothing...).
ACE_Pipe (void);
/// Open the pipe and initialize the handles.
ACE_Pipe (ACE_HANDLE handles[2]);
/// Initialize the <ACE_Pipe> from the <read> and <write> handles.
ACE_Pipe (ACE_HANDLE read, ACE_HANDLE write);
/// Default dtor. It doesn't close the handles for you.
~ACE_Pipe (void);
/// Open the pipe and initialize the handles.
int open (ACE_HANDLE handles[2]);
/// Open the pipe, setting the buffer size to the maximum.
int open (int buffer_size = ACE_DEFAULT_MAX_SOCKET_BUFSIZ);
/// Close down the pipe HANDLEs;
int close (void);
// = Accessors.
/**
* This is the "read" side of the pipe. Note, however, that
* processes can also write to this handle as well since pipes are
* bi-directional.
*/
ACE_HANDLE read_handle (void) const;
/**
* This is the "write" side of the pipe. Note, however, that
* processes can also read to this handle as well since pipes are
* bi-directional.
*/
ACE_HANDLE write_handle (void) const;
/// Dump the state of the object.
void dump (void) const;
private:
ACE_HANDLE handles_[2];
};
#if !defined (ACE_LACKS_INLINE_FUNCTIONS)
#include "ace/Pipe.i"
#endif /* ACE_LACKS_INLINE_FUNCTIONS */
#include "ace/post.h"
#endif /* ACE_PIPE_H */
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