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
line wrap: on
line diff
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