//========================================================================////      fread.cxx////      ANSI Stdio fread() 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:  jlarmour// Date:          1998-02-13// Purpose:     // Description: // Usage:       ////####DESCRIPTIONEND####////=======================================================================// CONFIGURATION#include <pkgconf/libc.h>   // Configuration header// Include the C library? And do we want the stdio stuff?#if defined(CYGPKG_LIBC) && defined(CYGPKG_LIBC_STDIO)// 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 "clibincl/stdiosupp.hxx"   // Support functions for stdio#include "clibincl/stream.hxx"      // Cyg_StdioStream// EXPORTED SYMBOLSexternC size_tfread( void *, size_t, size_t, FILE * ) CYGPRI_LIBC_WEAK_ALIAS("_fread");// FUNCTIONSexternC size_t_fread( void *ptr, size_t object_size, size_t num_objects, FILE *stream ){    Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;    cyg_ucount32 bytes_read;    Cyg_ErrNo err;        CYG_REPORT_FUNCNAMETYPE( "_fread", "read %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->read( (cyg_uint8 *)ptr, object_size*num_objects,                             &bytes_read );    if (!err && !bytes_read) { // if no err, but nothing to read, try again        real_stream->refill_read_buffer();        err = real_stream->read( (cyg_uint8 *)ptr, object_size*num_objects,                                 &bytes_read );    } // if    if (err) {        real_stream->set_error( err );        errno = err;    } // if        // we return the number of _objects_ read. Simple division is    // sufficient as this returns the quotient rather than rounding    CYG_REPORT_RETVAL( bytes_read/object_size );    return bytes_read/object_size;} // _fread()#endif // if defined(CYGPKG_LIBC) && defined(CYGPKG_LIBC_STDIO)// EOF fread.cxx