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//========================================================================
//
//      fwrite.cxx
//
//      ANSI Stdio fwrite() function
//
//========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, 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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// version.                                                                 
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// 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.,    
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//
// 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,       
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// must still be made available in accordance with section (3) of the GNU   
// General Public License v2.                                               
//
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// on this file might be covered by the GNU General Public License.         
// -------------------------------------------                              
// ####ECOSGPLCOPYRIGHTEND####                                              
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     jlarmour
// Contributors:  
// Date:          2000-04-20
// Purpose:     
// Description: 
// Usage:       
//
//####DESCRIPTIONEND####
//
//========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h>   // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h>     // Common project-wide type definitions
#include <cyg/infra/cyg_ass.h>      // Assertion support
#include <cyg/infra/cyg_trac.h>     // Tracing support
#include <stddef.h>                 // NULL and size_t from compiler
#include <stdio.h>                  // header for this file
#include <errno.h>                  // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
externC size_t
fwrite( const void *ptr, size_t object_size, size_t num_objects,
         FILE *stream ) __THROW
{
    Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
    cyg_ucount32 written;
    Cyg_ErrNo err;
 
    CYG_REPORT_FUNCNAMETYPE( "fwrite", "wrote %d objects" );
    CYG_REPORT_FUNCARG4( "ptr=%08x, object_size=%d, num_objects=%d, "
                         "stream=%08x", ptr, object_size, num_objects,
                         stream );
 
    if ( (object_size==0) || (num_objects==0) ) {
        CYG_REPORT_RETVAL(0);
        return 0;
    } // if
 
    err = real_stream->write( (cyg_uint8 *)ptr, num_objects*object_size,
                              &written );
 
    if (err) {
        real_stream->set_error( err );
        errno = err;
    } // if
 
    // we return the number of _objects_ written. Simple division is
    // sufficient as this returns the quotient rather than rounding
 
    CYG_REPORT_RETVAL( written/object_size );
    return written/object_size;
} // fwrite()
 
// EOF fwrite.cxx