Mercurial > flash_v2
diff packages/language/c/libc/stdio/current/src/output/fwrite.cxx @ 115:6ed91473a1cd ecos-sw-2000-08-21
Merge from eCos master repository on 2000-08-21-22:40:54-BST
| author | jlarmour |
|---|---|
| date | Fri, 25 Aug 2000 17:32:38 +0000 |
| parents | |
| children | e0c0827131d1 |
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new file mode 100644 --- /dev/null +++ b/packages/language/c/libc/stdio/current/src/output/fwrite.cxx @@ -0,0 +1,94 @@ +//======================================================================== +// +// fwrite.cxx +// +// ANSI Stdio fwrite() function +// +//======================================================================== +//####COPYRIGHTBEGIN#### +// +// ------------------------------------------- +// The contents of this file are subject to the Red Hat eCos Public License +// Version 1.1 (the "License"); you may not use this file except in +// compliance with the License. You may obtain a copy of the License at +// http://www.redhat.com/ +// +// Software distributed under the License is distributed on an "AS IS" +// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the +// License for the specific language governing rights and limitations under +// the License. +// +// The Original Code is eCos - Embedded Configurable Operating System, +// released September 30, 1998. +// +// The Initial Developer of the Original Code is Red Hat. +// Portions created by Red Hat are +// Copyright (C) 1998, 1999, 2000 Red Hat, Inc. +// All Rights Reserved. +// ------------------------------------------- +// +//####COPYRIGHTEND#### +//======================================================================== +//#####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 ) +{ + 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
