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//===========================================================================

//

//      fclose.cxx

//

//      Implementation of C library file close function as per ANSI 7.9.5.1

//

//===========================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

//

// eCos is free software; you can redistribute it and/or modify it under

// the terms of the GNU General Public License as published by the Free

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// WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

// for more details.

//

// You should have received a copy of the GNU General Public License along

// with eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

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// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//===========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     jlarmour

// Contributors:  

// Date:          2000-04-20

// Purpose:       Implements ISO C fclose() function

// Description: 

// Usage:       

//

//####DESCRIPTIONEND####

//

//===========================================================================

// CONFIGURATION

#include <pkgconf/libc_stdio.h>   // Configuration header

#include <pkgconf/infra.h>

// We can't have fclose() without fopen()

#if defined(CYGPKG_LIBC_STDIO_OPEN)

// INCLUDES

#include <cyg/infra/cyg_type.h>     // Common project-wide type definitions

#include <stddef.h>                 // NULL and size_t from compiler

#include <errno.h>                  // Error codes

#include <stdio.h>                  // header for fclose()

#include <stdlib.h>                 // free()

#include <cyg/libc/stdio/stdiofiles.hxx>  // C library files

#include <cyg/libc/stdio/stream.hxx>      // C library streams

#include <cyg/libc/stdio/io.inl>     // I/O system inlines

// FUNCTIONS

externC int

fclose( FILE *stream )

{

    Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;

    int i;

    Cyg_ErrNo err;

    Cyg_libc_stdio_files::lock();

    // find the stream in the table

    for (i=0; i < FOPEN_MAX; i++)

    {

        if (real_stream == Cyg_libc_stdio_files::get_file_stream(i))

            break;

    } // for

    if (i == FOPEN_MAX) // didn't find it

    {

        errno = EBADF;

        return EOF;

    } // if

    err = real_stream->close();

    if( err != ENOERR )

    {

        errno = err;

        return EOF;

    }

#ifdef CYGFUN_INFRA_EMPTY_DELETE_FUNCTIONS

    // Explicitly call destructor - this flushes the output too

    real_stream->~Cyg_StdioStream();

    // and free it

    free(real_stream);

#else

    delete real_stream;

#endif // CYGFUN_INFRA_EMPTY_DELETE_FUNCTIONS

    // and mark the stream available for use

    Cyg_libc_stdio_files::set_file_stream(i, NULL);

    Cyg_libc_stdio_files::unlock();

    return 0;

} // fclose()

#endif // if defined(CYGPKG_LIBC_STDIO_OPEN)

// EOF fclose.cxx