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/* -*- C++ -*- */
//=============================================================================
/**
* @file FILE.h
*
* $Id$
*
* @author Gerhard Lenzer
*/
//=============================================================================
#ifndef ACE_FILE_H
#define ACE_FILE_H
#include /**/ "ace/pre.h"
#include "ace/IO_SAP.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/FILE_Addr.h"
// The following is necessary since many C++ compilers don't support
// typedef'd types inside of classes used as formal template
// arguments... ;-(. Luckily, using the C++ preprocessor I can hide
// most of this nastiness!
#if defined (ACE_HAS_TEMPLATE_TYPEDEFS)
#define ACE_FILE_CONNECTOR ACE_FILE_Connector
#define ACE_FILE_STREAM ACE_FILE_IO
#else /* TEMPLATES are broken (must be a cfront-based compiler...) */
#define ACE_FILE_CONNECTOR ACE_FILE_Connector, ACE_FILE_Addr
#define ACE_FILE_STREAM ACE_FILE_IO, ACE_FILE_Addr
#endif /* ACE_TEMPLATE_TYPEDEFS */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class ACE_FILE_Info
*
* @brief Abstracts basic OS FILE information.
*/
class ACE_Export ACE_FILE_Info
{
public:
/// Mode of file
mode_t mode_;
/// No of links
nlink_t nlink_;
/// Size of file
off_t size_;
};
/**
* @class ACE_FILE
*
* @brief Defines the core methods of the ACE_FILE abstraction.
*/
class ACE_Export ACE_FILE : public ACE_IO_SAP
{
public:
/// Close the ACE_FILE handle without removing the ACE_FILE from
/// the file system.
int close (void);
/// Close and remove the ACE_FILE from the file system.
int remove (void);
/// Remove the ACE_FILE from the file system without closing the
/// ACE_FILE handle.
int unlink (void);
/// Get information on this ACE_FILE.
int get_info (ACE_FILE_Info *finfo);
/// Get information on this <ACE_FILE>.
int get_info (ACE_FILE_Info &finfo);
/// Set filesize to length byte.
int truncate (off_t length);
/**
* Sets the file pointer as follows:
* o If <whence> is <SEEK_SET>, the pointer is set to <offset>
* bytes.
*
* o If <whence> is <SEEK_CUR>, the pointer is set to its
* current location plus <offset>.
*
* o If <whence> is <SEEK_END>, the pointer is set to the size
* of the file plus offset.
*/
off_t seek (off_t offset,
int whence = SEEK_CUR);
/// Return an offset for the file handle.
off_t tell (void);
/**
* Disable signal @a signum
* This is here to prevent Win32 from
* disabling SPIPE using socket calls
*/
int disable (int signum) const ;
/// Return the local endpoint address in the referenced ACE_Addr.
/// Returns 0 if successful, else -1.
int get_local_addr (ACE_Addr &) const;
/// Return the same thing as get_local_addr().
int get_remote_addr (ACE_Addr &) const;
/// Dump the state of an object.
void dump (void) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
protected:
/// Ensure that this class is only created by the
/// ACE_FILE_Connector.
ACE_FILE (void);
/// File we are "connected" with...
ACE_FILE_Addr addr_;
};
ACE_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
#include "ace/FILE.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* ACE_FILE_H */
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