diff packages/language/c/libc/stdio/current/src/common/stdin.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 d2f49caf9e38
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+//========================================================================
+//
+//      stdin.cxx
+//
+//      Initialization of stdin stream for ISO C library
+//
+//========================================================================
+//####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:       Initialization of stdin stream for ISO C library
+// Description:   We put all this in a separate file in the hope that if
+//                no-one uses stdin, then it is not included in the image
+// Usage:         
+//
+//####DESCRIPTIONEND####
+//
+//========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc_stdio.h>          // Configuration header
+
+// Don't let us get the stream definitions of stdin/out/err from stdio.h
+// since we are going to break the type safety :-(
+#define CYGPRI_LIBC_STDIO_NO_DEFAULT_STREAMS
+
+// And we don't need the stdio inlines, which will otherwise complain if
+// stdin/out/err are not available
+#ifdef CYGIMP_LIBC_STDIO_INLINES
+# undef CYGIMP_LIBC_STDIO_INLINES
+#endif
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>           // Common type definitions and support
+#include <cyg/libc/stdio/stream.hxx>      // Cyg_StdioStream class
+#include <cyg/libc/stdio/stdiofiles.hxx>  // C library files
+#include <cyg/libc/stdio/stdiosupp.hxx>   // Cyg_libc_stdio_find_filename()
+
+// STATICS
+
+Cyg_StdioStream
+cyg_libc_stdio_stdin CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_LIBC) = Cyg_StdioStream( 
+    Cyg_libc_stdio_find_filename(CYGDAT_LIBC_STDIO_DEFAULT_CONSOLE,
+                                 Cyg_StdioStream::CYG_STREAM_READ, false, false),
+    Cyg_StdioStream::CYG_STREAM_READ, false, false, _IOLBF );
+
+
+// CLASSES
+
+// This is a dummy class just so we can execute arbitrary code when
+// stdin is requested
+
+class cyg_libc_dummy_stdin_init_class {
+public:
+    cyg_libc_dummy_stdin_init_class(void) { 
+        Cyg_libc_stdio_files::set_file_stream(0, &cyg_libc_stdio_stdin);
+    }
+};
+
+// And here's an instance of the class just to make the code run
+static cyg_libc_dummy_stdin_init_class cyg_libc_dummy_stdin_init
+                                         CYGBLD_ATTRIB_INIT_PRI(CYG_INIT_LIBC);
+// EOF stdin.cxx