view packages/isoinfra/current/include/time.h @ 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 4c750ce71ae3
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#ifndef CYGONCE_ISO_TIME_H
#define CYGONCE_ISO_TIME_H
/*========================================================================
//
//      time.h
//
//      ISO time functions
//
//========================================================================
//####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:          2000-04-14
// Purpose:       This file provides the time macros, types and functions
//                required by ISO C and POSIX 1003.1.
// Description:   The real contents of this file get set from the
//                configuration (set by the implementation)
// Usage:         #include <time.h>
//
//####DESCRIPTIONEND####
//
//======================================================================
*/

/* CONFIGURATION */

#include <pkgconf/isoinfra.h>          /* Configuration header */

/* INCLUDES */

/* This is the "standard" way to get NULL and size_t from stddef.h,
 * which is the canonical location of the definitions.
 */
#define __need_NULL
#define __need_size_t
#include <stddef.h>

#ifdef CYGBLD_ISO_TIME_T_HEADER
# include CYGBLD_ISO_TIME_T_HEADER
#else

/* Define time_t as per ISO C para 7.12.1
 * It is conventionally given the meaning of seconds since the
 * Epoch (00:00:00 GMT, 1970-01-01), but don't rely on this - always use
 * the type opaquely
 */
typedef int time_t;
# define __time_t_defined

#endif

#ifdef CYGBLD_ISO_CLOCK_T_HEADER
# include CYGBLD_ISO_CLOCK_T_HEADER
#else

/* What to divide clock_t by to get seconds (para 7.12.1)
 * According to SUS3, CLOCKS_PER_SEC must be 1 million on all
 * XSI-conformant systems.
 */
#  define CLOCKS_PER_SEC 1000000

/* Define clock_t as per ISO C para 7.12.1 */

typedef long clock_t;
#  define __clock_t_defined
#endif

#ifdef CYGBLD_ISO_STRUCTTIMEVAL_HEADER
# include CYGBLD_ISO_STRUCTTIMEVAL_HEADER
#else
# ifndef _POSIX_SOURCE

/*
 * Structure returned by gettimeofday(2),
 * and used in other calls such as select(2).
 */
struct timeval {
	long	tv_sec;		/* seconds */
	long	tv_usec;	/* and microseconds */
};

# endif /* _POSIX_SOURCE */
#endif


#if CYGINT_ISO_POSIX_TIMER_TYPES
# include CYGBLD_ISO_POSIX_TIMER_TYPES_HEADER
#endif

#if CYGINT_ISO_C_TIME_TYPES
# include CYGBLD_ISO_C_TIME_TYPES_HEADER
#endif

#if CYGINT_ISO_POSIX_TIMERS
# include CYGBLD_ISO_POSIX_TIMERS_HEADER
#endif

#if CYGINT_ISO_C_CLOCK_FUNCS
# include CYGBLD_ISO_C_CLOCK_FUNCS_HEADER
#endif

#if CYGINT_ISO_TZSET
# include CYGBLD_ISO_TZSET_HEADER
#endif

#endif /* CYGONCE_ISO_TIME_H multiple inclusion protection */

/* EOF time.h */