diff packages/language/c/libc/time/current/src/time.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
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+//========================================================================
+//
+//      time.cxx
+//
+//      ISO C date and time implementation for time()
+//
+//========================================================================
+//####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:         1999-03-04
+// Purpose:      Provide implementation of ISO C time() as defined in
+//               ISO C section 7.12.2.4
+// Description:  This file provides an implementation of time() using
+//               the "wallclock" device
+// Usage:         
+//
+//####DESCRIPTIONEND####
+//
+//========================================================================
+
+// CONFIGURATION
+
+#include <pkgconf/libc_time.h>          // C library configuration
+
+// INCLUDES
+
+#include <cyg/infra/cyg_type.h>    // Common type definitions and support
+#include <cyg/infra/cyg_ass.h>     // Assertion infrastructure
+#include <cyg/infra/cyg_trac.h>    // Tracing infrastructure
+#include <time.h>                  // Main date and time definitions
+
+#ifdef CYGSEM_LIBC_TIME_TIME_WORKING
+# include <cyg/io/wallclock.hxx> // Wallclock class definitions
+#endif
+
+// FUNCTIONS
+
+externC time_t
+time( time_t *timer )
+{
+    CYG_REPORT_FUNCNAMETYPE("time", "returning %d");
+    if (timer) // its allowed to be NULL
+        CYG_CHECK_DATA_PTR( timer, "timer is not a valid pointer!");
+    CYG_REPORT_FUNCARG1("timer = %08x", timer);
+
+#ifdef CYGSEM_LIBC_TIME_TIME_WORKING
+    time_t ret;
+
+    ret = (time_t) Cyg_WallClock::wallclock->get_current_time();
+    
+    if (timer)
+        *timer = ret;
+
+    CYG_REPORT_RETVAL(ret);
+
+    return ret;
+
+#else // i.e. ifndef CYGSEM_LIBC_TIME_TIME_WORKING
+
+    if (timer)
+        *timer = (time_t)-1;
+    CYG_REPORT_RETVAL(-1);
+    return (time_t)-1;
+
+#endif
+
+} // time()
+
+
+// EOF time.cxx