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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
// Software Foundation; either version 2 or (at your option) any later
// version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT
// ANY 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 in accordance with section (3) of the GNU
// General Public License v2.
//
// This exception does not invalidate any other reasons why a work based
// 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
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