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#ifndef CYGONCE_LIBC_TIME_INL
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#define CYGONCE_LIBC_TIME_INL
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//===========================================================================
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//
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// time.inl
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//
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// Inline implementations of date and time routines from
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//
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//===========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//===========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): jlarmour
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// Contributors:
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// Date: 1999-02-25
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// Purpose: Provide inline implementations for some of the date and time
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// routines declared in for ISO C section 7.12 and
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// POSIX 1003.1 8.3.4-8.3.7
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// Description:
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// Usage: Do not include this file directly. Instead include
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//
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//####DESCRIPTIONEND####
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//
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//===========================================================================
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// CONFIGURATION
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#include // C library configuration
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// INCLUDES
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#include // Common type definitions and support
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#include // Header for this file
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#include // Assertion infrastructure
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#include // Tracing infrastructure
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// DEFINES
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// The following are overriden by the libc implementation to get a non-inline
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// version to prevent duplication of code
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#ifndef CYGPRI_LIBC_TIME_ASCTIME_R_INLINE
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# define CYGPRI_LIBC_TIME_ASCTIME_R_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_CTIME_R_INLINE
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# define CYGPRI_LIBC_TIME_CTIME_R_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_GMTIME_R_INLINE
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# define CYGPRI_LIBC_TIME_GMTIME_R_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_LOCALTIME_R_INLINE
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# define CYGPRI_LIBC_TIME_LOCALTIME_R_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_DIFFTIME_INLINE
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# define CYGPRI_LIBC_TIME_DIFFTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_MKTIME_INLINE
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# define CYGPRI_LIBC_TIME_MKTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_ASCTIME_INLINE
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# define CYGPRI_LIBC_TIME_ASCTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_CTIME_INLINE
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# define CYGPRI_LIBC_TIME_CTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_GMTIME_INLINE
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# define CYGPRI_LIBC_TIME_GMTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_LOCALTIME_INLINE
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# define CYGPRI_LIBC_TIME_LOCALTIME_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_GETZONEOFFSETS_INLINE
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# define CYGPRI_LIBC_TIME_GETZONEOFFSETS_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_SETZONEOFFSETS_INLINE
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# define CYGPRI_LIBC_TIME_SETZONEOFFSETS_INLINE extern __inline__
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#endif
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#ifndef CYGPRI_LIBC_TIME_SETDST_INLINE
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# define CYGPRI_LIBC_TIME_SETDST_INLINE extern __inline__
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#endif
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#define CYGNUM_LIBC_TIME_EPOCH_WDAY 4 // Jan 1st 1970 was a Thursday
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#ifdef __cplusplus
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extern "C" {
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#endif
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// EXTERNS
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// These are used in the dst access functions below. Do not access these
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// directly - use the functions declared in time.h instead
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extern Cyg_libc_time_dst cyg_libc_time_current_dst_stat;
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extern time_t cyg_libc_time_current_std_offset;
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extern time_t cyg_libc_time_current_dst_offset;
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// INLINE FUNCTIONS
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//===========================================================================
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//
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// Utility functions
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//////////////////////////////////
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// cyg_libc_time_year_is_leap() //
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//////////////////////////////////
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//
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// This returns true if the year is a leap year.
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// The argument is of type int in line with struct tm
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//
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static __inline__ cyg_bool
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cyg_libc_time_year_is_leap( int __year )
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{
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cyg_bool _leap=false;
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if (!(__year % 400))
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_leap = true;
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else if (!(__year % 4) && (__year % 100))
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_leap = true;
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return _leap;
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} // cyg_libc_time_year_is_leap()
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////////////////////////////////////
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// cyg_libc_time_getzoneoffsets() //
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////////////////////////////////////
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//
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// This function retrieves the current state of the Daylight Savings Time
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// and the offsets of both STD and DST
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// The offsets are both in time_t's i.e. seconds
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//
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CYGPRI_LIBC_TIME_GETZONEOFFSETS_INLINE Cyg_libc_time_dst
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cyg_libc_time_getzoneoffsets( time_t *__stdoffset, time_t *__dstoffset )
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{
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CYG_REPORT_FUNCNAMETYPE("cyg_libc_time_getzoneoffsets",
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"returning DST state %d");
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CYG_REPORT_FUNCARG2("__stdoffset is at address %08x, "
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"__dstoffset is at %08x", __stdoffset, __dstoffset);
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CYG_CHECK_DATA_PTR(__stdoffset, "__stdoffset is not a valid pointer!");
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CYG_CHECK_DATA_PTR(__dstoffset, "__dstoffset is not a valid pointer!");
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*__stdoffset = cyg_libc_time_current_std_offset;
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*__dstoffset = cyg_libc_time_current_dst_offset;
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CYG_REPORT_RETVAL(cyg_libc_time_current_dst_stat);
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return cyg_libc_time_current_dst_stat;
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} // cyg_libc_time_getzoneoffsets()
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////////////////////////////////////
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// cyg_libc_time_setzoneoffsets() //
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////////////////////////////////////
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//
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// This function sets the offsets used when Daylight Savings Time is enabled
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// or disabled. The offsets are in time_t's i.e. seconds
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//
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CYGPRI_LIBC_TIME_SETZONEOFFSETS_INLINE void
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cyg_libc_time_setzoneoffsets( time_t __stdoffset, time_t __dstoffset )
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{
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CYG_REPORT_FUNCNAME("cyg_libc_time_setzoneoffsets");
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CYG_REPORT_FUNCARG2DV(__stdoffset, __dstoffset);
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cyg_libc_time_current_std_offset = __stdoffset;
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cyg_libc_time_current_dst_offset = __dstoffset;
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CYG_REPORT_RETURN();
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} // cyg_libc_time_setzoneoffsets()
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////////////////////////////
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// cyg_libc_time_setdst() //
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////////////////////////////
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//
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// This function sets the state of Daylight Savings Time: on, off, or unknown
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//
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CYGPRI_LIBC_TIME_SETDST_INLINE void
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cyg_libc_time_setdst( Cyg_libc_time_dst __state )
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{
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CYG_REPORT_FUNCNAME("cyg_libc_time_setdst");
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CYG_REPORT_FUNCARG1("__state=%d", __state);
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cyg_libc_time_current_dst_stat = __state;
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CYG_REPORT_RETURN();
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} // cyg_libc_time_setdst()
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//===========================================================================
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//
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// POSIX 1003.1 functions
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/////////////////////////////////
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// asctime_r() - POSIX.1 8.3.4 //
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/////////////////////////////////
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//
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// This returns a textual representation of a struct tm, and writes
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// the string to return into __buf
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//
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#ifdef CYGFUN_LIBC_TIME_POSIX
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# define __asctime_r asctime_r
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#else
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// prototype internal function
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__externC char *
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__asctime_r( const struct tm *__timeptr, char *__buf );
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#endif
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#ifdef CYGIMP_LIBC_TIME_ASCTIME_R_INLINE
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#include // for cyg_libc_time_{day,month}_name
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// and cyg_libc_time_itoa()
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#include // for memcpy()
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CYGPRI_LIBC_TIME_ASCTIME_R_INLINE char *
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__asctime_r( const struct tm *__timeptr, char *__buf )
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{
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cyg_uint8 __i;
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// These initializers are [4] since C++ dictates you _must_ leave space
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// for the trailing '\0', even though ISO C says you don't need to!
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CYG_REPORT_FUNCNAMETYPE("asctime_r", "returning \"%s\"");
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CYG_REPORT_FUNCARG2("__timeptr = %08x, __buf = %08x", __timeptr, __buf);
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// paranoia - most of these aren't required but could be helpful to
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// a programmer debugging their own app.
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CYG_CHECK_DATA_PTR(__timeptr, "__timeptr is not a valid pointer!");
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CYG_CHECK_DATA_PTR(__buf, "__buf is not a valid pointer!");
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CYG_PRECONDITION((__timeptr->tm_sec >= 0) && (__timeptr->tm_sec < 62),
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"__timeptr->tm_sec out of range!");
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CYG_PRECONDITION((__timeptr->tm_min >= 0) && (__timeptr->tm_min < 60),
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"__timeptr->tm_min out of range!");
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CYG_PRECONDITION((__timeptr->tm_hour >= 0) && (__timeptr->tm_hour < 24),
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285 |
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"__timeptr->tm_hour out of range!");
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// Currently I don't check _actual_ numbers of days in each month here
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// FIXME: No reason why not though
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CYG_PRECONDITION((__timeptr->tm_mday >= 1) && (__timeptr->tm_mday < 32),
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289 |
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"__timeptr->tm_mday out of range!");
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CYG_PRECONDITION((__timeptr->tm_mon >= 0) && (__timeptr->tm_mon < 12),
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291 |
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"__timeptr->tm_mon out of range!");
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292 |
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CYG_PRECONDITION((__timeptr->tm_wday >= 0) && (__timeptr->tm_wday < 7),
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293 |
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"__timeptr->tm_wday out of range!");
|
294 |
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CYG_PRECONDITION((__timeptr->tm_yday >= 0) && (__timeptr->tm_yday < 366),
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295 |
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"__timeptr->tm_yday out of range!");
|
296 |
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CYG_PRECONDITION((__timeptr->tm_year > -1900) &&
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297 |
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(__timeptr->tm_year < 8100),
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298 |
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"__timeptr->tm_year out of range!");
|
299 |
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300 |
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// we can't use strftime because ISO C is stupid enough not to allow
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301 |
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// the strings in asctime() to be localized. Duh.
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302 |
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// day of the week
|
304 |
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memcpy(&__buf[0], cyg_libc_time_day_name[__timeptr->tm_wday], 3);
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305 |
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__buf[3] = ' ';
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306 |
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307 |
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// month
|
308 |
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memcpy(&__buf[4], cyg_libc_time_month_name[__timeptr->tm_mon], 3);
|
309 |
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__buf[7] = ' ';
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310 |
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311 |
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__i = 8;
|
312 |
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313 |
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// day of the month
|
314 |
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__i += cyg_libc_time_itoa( (cyg_uint8 *)&__buf[__i], __timeptr->tm_mday, 2,
|
315 |
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true);
|
316 |
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__buf[__i++] = ' ';
|
317 |
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318 |
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// hour
|
319 |
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__i += cyg_libc_time_itoa( (cyg_uint8 *)&__buf[__i], __timeptr->tm_hour, 2,
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320 |
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true);
|
321 |
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__buf[__i++] = ':';
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322 |
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323 |
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// minute
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324 |
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__i += cyg_libc_time_itoa( (cyg_uint8 *)&__buf[__i], __timeptr->tm_min, 2,
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325 |
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true);
|
326 |
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__buf[__i++] = ':';
|
327 |
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328 |
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// second
|
329 |
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__i += cyg_libc_time_itoa((cyg_uint8 *) &__buf[__i], __timeptr->tm_sec, 2,
|
330 |
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true);
|
331 |
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__buf[__i++] = ' ';
|
332 |
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333 |
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// year
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334 |
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__i += cyg_libc_time_itoa( (cyg_uint8 *)&__buf[__i],
|
335 |
|
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1900+__timeptr->tm_year, 0, true);
|
336 |
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337 |
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__buf[__i++] = '\n';
|
338 |
|
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__buf[__i++] = '\0';
|
339 |
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|
340 |
|
|
CYG_REPORT_RETVAL(__buf);
|
341 |
|
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return __buf;
|
342 |
|
|
} // asctime_r()
|
343 |
|
|
|
344 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_ASCTIME_R_INLINE
|
345 |
|
|
|
346 |
|
|
////////////////////////////////
|
347 |
|
|
// gmtime_r() - POSIX.1 8.3.6 //
|
348 |
|
|
////////////////////////////////
|
349 |
|
|
//
|
350 |
|
|
// This converts a time_t into a struct tm expressed in UTC, and stores
|
351 |
|
|
// the result in the space occupied by __result
|
352 |
|
|
//
|
353 |
|
|
|
354 |
|
|
#ifdef CYGFUN_LIBC_TIME_POSIX
|
355 |
|
|
# define __gmtime_r gmtime_r
|
356 |
|
|
#else
|
357 |
|
|
// prototype internal function
|
358 |
|
|
__externC struct tm *
|
359 |
|
|
__gmtime_r( const time_t *__timer, struct tm *__result );
|
360 |
|
|
#endif
|
361 |
|
|
|
362 |
|
|
#ifdef CYGIMP_LIBC_TIME_GMTIME_R_INLINE
|
363 |
|
|
|
364 |
|
|
#include // for cyg_libc_time_month_lengths
|
365 |
|
|
|
366 |
|
|
CYGPRI_LIBC_TIME_GMTIME_R_INLINE struct tm *
|
367 |
|
|
__gmtime_r( const time_t *__timer, struct tm *__result )
|
368 |
|
|
{
|
369 |
|
|
time_t _tim;
|
370 |
|
|
const cyg_uint8 *_months_p;
|
371 |
|
|
|
372 |
|
|
CYG_REPORT_FUNCNAMETYPE("gmtime_r", "returning %08x");
|
373 |
|
|
CYG_CHECK_DATA_PTR(__timer, "__timer is not a valid pointer!");
|
374 |
|
|
CYG_CHECK_DATA_PTR(__result, "__result is not a valid pointer!");
|
375 |
|
|
CYG_REPORT_FUNCARG2("*__timer=%d, __result is at %08x",
|
376 |
|
|
*__timer, __result);
|
377 |
|
|
|
378 |
|
|
#define CYGNUM_LIBC_TIME_SECSPERDAY (60*60*24)
|
379 |
|
|
#define CYGNUM_LIBC_TIME_SECSPERYEAR (CYGNUM_LIBC_TIME_SECSPERDAY * 365)
|
380 |
|
|
#define CYGNUM_LIBC_TIME_SECSPERLEAPYEAR (CYGNUM_LIBC_TIME_SECSPERDAY * 366)
|
381 |
|
|
|
382 |
|
|
_tim = *__timer;
|
383 |
|
|
|
384 |
|
|
// First, work out year. Start off with 1970 and work forwards or backwards
|
385 |
|
|
// depending on the sign of _tim
|
386 |
|
|
__result->tm_year = 70;
|
387 |
|
|
|
388 |
|
|
// we also work out the day of the week of the start of the year as we
|
389 |
|
|
// go along
|
390 |
|
|
__result->tm_wday = CYGNUM_LIBC_TIME_EPOCH_WDAY;
|
391 |
|
|
|
392 |
|
|
while (_tim < 0) {
|
393 |
|
|
// Work backwards
|
394 |
|
|
|
395 |
|
|
--__result->tm_year;
|
396 |
|
|
|
397 |
|
|
// Check for a leap year.
|
398 |
|
|
if (cyg_libc_time_year_is_leap(1900 + __result->tm_year)) {
|
399 |
|
|
_tim += CYGNUM_LIBC_TIME_SECSPERLEAPYEAR;
|
400 |
|
|
__result->tm_wday -= 366;
|
401 |
|
|
} // if
|
402 |
|
|
else {
|
403 |
|
|
_tim += CYGNUM_LIBC_TIME_SECSPERYEAR;
|
404 |
|
|
__result->tm_wday -= 365;
|
405 |
|
|
} // else
|
406 |
|
|
|
407 |
|
|
} // while
|
408 |
|
|
|
409 |
|
|
while (_tim >= CYGNUM_LIBC_TIME_SECSPERYEAR) {
|
410 |
|
|
// Work forwards
|
411 |
|
|
|
412 |
|
|
if (cyg_libc_time_year_is_leap(1900 + __result->tm_year)) {
|
413 |
|
|
|
414 |
|
|
// But if this is a leap year, its possible that we are in the
|
415 |
|
|
// middle of the last "extra" day
|
416 |
|
|
if (_tim < CYGNUM_LIBC_TIME_SECSPERLEAPYEAR)
|
417 |
|
|
break;
|
418 |
|
|
|
419 |
|
|
_tim -= CYGNUM_LIBC_TIME_SECSPERLEAPYEAR;
|
420 |
|
|
__result->tm_wday += 366;
|
421 |
|
|
} // if
|
422 |
|
|
else {
|
423 |
|
|
_tim -= CYGNUM_LIBC_TIME_SECSPERYEAR;
|
424 |
|
|
__result->tm_wday += 365;
|
425 |
|
|
}
|
426 |
|
|
++__result->tm_year;
|
427 |
|
|
} // while
|
428 |
|
|
|
429 |
|
|
// Day of the year. We know _tim is +ve now
|
430 |
|
|
CYG_ASSERT(_tim >= 0,
|
431 |
|
|
"Number of seconds since start of year is negative!");
|
432 |
|
|
__result->tm_yday = _tim / CYGNUM_LIBC_TIME_SECSPERDAY;
|
433 |
|
|
|
434 |
|
|
// Day of the week. Normalize to be 0..6, and note that it might
|
435 |
|
|
// be negative, so we have to deal with the modulus being
|
436 |
|
|
// implementation-defined for -ve numbers (ISO C 6.3.5)
|
437 |
|
|
__result->tm_wday = (((__result->tm_wday + __result->tm_yday)%7)+7)%7;
|
438 |
|
|
|
439 |
|
|
// Month and Day of the month
|
440 |
|
|
|
441 |
|
|
_months_p = cyg_libc_time_month_lengths[
|
442 |
|
|
cyg_libc_time_year_is_leap(1900 + __result->tm_year) ? 1 : 0 ];
|
443 |
|
|
|
444 |
|
|
__result->tm_mday = __result->tm_yday+1;
|
445 |
|
|
|
446 |
|
|
for (__result->tm_mon = 0;
|
447 |
|
|
__result->tm_mday > _months_p[__result->tm_mon];
|
448 |
|
|
++__result->tm_mon) {
|
449 |
|
|
|
450 |
|
|
__result->tm_mday -= _months_p[__result->tm_mon];
|
451 |
|
|
|
452 |
|
|
} // for
|
453 |
|
|
|
454 |
|
|
_tim -= __result->tm_yday*CYGNUM_LIBC_TIME_SECSPERDAY;
|
455 |
|
|
|
456 |
|
|
// hours, mins secs
|
457 |
|
|
__result->tm_hour = (int) (_tim / 3600);
|
458 |
|
|
_tim %= 3600;
|
459 |
|
|
__result->tm_min = (int) (_tim / 60);
|
460 |
|
|
__result->tm_sec = (int) (_tim % 60);
|
461 |
|
|
|
462 |
|
|
__result->tm_isdst = 0; // gmtime always returns non-DST
|
463 |
|
|
|
464 |
|
|
CYG_REPORT_RETVAL(__result);
|
465 |
|
|
|
466 |
|
|
return __result;
|
467 |
|
|
} // gmtime_r()
|
468 |
|
|
|
469 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_GMTIME_R_INLINE
|
470 |
|
|
|
471 |
|
|
///////////////////////////////////
|
472 |
|
|
// localtime_r() - POSIX.1 8.3.7 //
|
473 |
|
|
///////////////////////////////////
|
474 |
|
|
//
|
475 |
|
|
// This converts a time_t into a struct tm expressed in local time, and
|
476 |
|
|
// stores the result in the space occupied by __result
|
477 |
|
|
//
|
478 |
|
|
|
479 |
|
|
#ifdef CYGFUN_LIBC_TIME_POSIX
|
480 |
|
|
# define __localtime_r localtime_r
|
481 |
|
|
#else
|
482 |
|
|
// prototype internal function
|
483 |
|
|
__externC struct tm *
|
484 |
|
|
__localtime_r( const time_t *__timer, struct tm *__result );
|
485 |
|
|
#endif
|
486 |
|
|
|
487 |
|
|
#ifdef CYGIMP_LIBC_TIME_LOCALTIME_R_INLINE
|
488 |
|
|
|
489 |
|
|
#include // for cyg_libc_time_normalize_structtm()
|
490 |
|
|
|
491 |
|
|
CYGPRI_LIBC_TIME_LOCALTIME_R_INLINE struct tm *
|
492 |
|
|
__localtime_r( const time_t *__timer, struct tm *__result )
|
493 |
|
|
{
|
494 |
|
|
time_t __stdoffset, __dstoffset;
|
495 |
|
|
CYG_REPORT_FUNCNAMETYPE("localtime_r", "returning %08x");
|
496 |
|
|
CYG_CHECK_DATA_PTR(__timer, "__timer is not a valid pointer!");
|
497 |
|
|
CYG_CHECK_DATA_PTR(__result, "__result is not a valid pointer!");
|
498 |
|
|
CYG_REPORT_FUNCARG2("*__timer=%d, __result is at %08x",
|
499 |
|
|
*__timer, __result);
|
500 |
|
|
|
501 |
|
|
__gmtime_r(__timer, __result);
|
502 |
|
|
|
503 |
|
|
// Adjust for STD/DST
|
504 |
|
|
__result->tm_isdst = cyg_libc_time_getzoneoffsets(&__stdoffset,
|
505 |
|
|
&__dstoffset);
|
506 |
|
|
|
507 |
|
|
if (__result->tm_isdst == 0) { // STD
|
508 |
|
|
__result->tm_sec += __stdoffset;
|
509 |
|
|
cyg_libc_time_normalize_structtm( __result );
|
510 |
|
|
} // if
|
511 |
|
|
else if (__result->tm_isdst > 0) { // DST
|
512 |
|
|
__result->tm_sec += __dstoffset;
|
513 |
|
|
cyg_libc_time_normalize_structtm( __result );
|
514 |
|
|
} // if
|
515 |
|
|
// Don't do anything for tm_isdst == -1
|
516 |
|
|
|
517 |
|
|
CYG_REPORT_RETVAL(__result);
|
518 |
|
|
|
519 |
|
|
return __result;
|
520 |
|
|
} // localtime_r()
|
521 |
|
|
|
522 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_LOCALTIME_R_INLINE
|
523 |
|
|
|
524 |
|
|
|
525 |
|
|
///////////////////////////////
|
526 |
|
|
// ctime_r() - POSIX.1 8.3.5 //
|
527 |
|
|
///////////////////////////////
|
528 |
|
|
//
|
529 |
|
|
// This returns the equivalent of ctime() but writes to __buf
|
530 |
|
|
// to store the returned string
|
531 |
|
|
//
|
532 |
|
|
|
533 |
|
|
#ifdef CYGFUN_LIBC_TIME_POSIX
|
534 |
|
|
# define __ctime_r ctime_r
|
535 |
|
|
#else
|
536 |
|
|
// prototype internal function
|
537 |
|
|
__externC char *
|
538 |
|
|
__ctime_r( const time_t *__timer, char *__buf );
|
539 |
|
|
#endif
|
540 |
|
|
|
541 |
|
|
#ifdef CYGIMP_LIBC_TIME_CTIME_R_INLINE
|
542 |
|
|
|
543 |
|
|
CYGPRI_LIBC_TIME_CTIME_R_INLINE char *
|
544 |
|
|
__ctime_r( const time_t *__timer, char *__buf )
|
545 |
|
|
{
|
546 |
|
|
struct tm _mytm;
|
547 |
|
|
|
548 |
|
|
CYG_REPORT_FUNCNAMETYPE("ctime_r", "returning \"%s\"");
|
549 |
|
|
|
550 |
|
|
CYG_CHECK_DATA_PTR(__timer, "__timer is not a valid pointer!");
|
551 |
|
|
CYG_CHECK_DATA_PTR(__buf, "__buf is not a valid pointer!");
|
552 |
|
|
|
553 |
|
|
CYG_REPORT_FUNCARG2("*__timer = %d, __buf=%08x", *__timer, __buf);
|
554 |
|
|
|
555 |
|
|
__localtime_r( __timer, &_mytm );
|
556 |
|
|
|
557 |
|
|
__asctime_r(&_mytm, __buf);
|
558 |
|
|
|
559 |
|
|
CYG_REPORT_RETVAL(__buf);
|
560 |
|
|
|
561 |
|
|
return __buf;
|
562 |
|
|
} // ctime_r()
|
563 |
|
|
|
564 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_CTIME_R_INLINE
|
565 |
|
|
|
566 |
|
|
|
567 |
|
|
//===========================================================================
|
568 |
|
|
//
|
569 |
|
|
// ISO C functions
|
570 |
|
|
|
571 |
|
|
// Time manipulation functions - ISO C 7.12.2
|
572 |
|
|
|
573 |
|
|
/////////////////////////////////
|
574 |
|
|
// difftime() - ISO C 7.12.2.2 //
|
575 |
|
|
/////////////////////////////////
|
576 |
|
|
//
|
577 |
|
|
// This returns (__time1 - __time0) in seconds
|
578 |
|
|
//
|
579 |
|
|
|
580 |
|
|
#ifdef CYGIMP_LIBC_TIME_DIFFTIME_INLINE
|
581 |
|
|
|
582 |
|
|
CYGPRI_LIBC_TIME_DIFFTIME_INLINE double
|
583 |
|
|
difftime( time_t __time1, time_t __time0 )
|
584 |
|
|
{
|
585 |
|
|
double _ret;
|
586 |
|
|
|
587 |
|
|
CYG_REPORT_FUNCNAMETYPE("difftime", "returning %f");
|
588 |
|
|
CYG_REPORT_FUNCARG2("__time1=%d, __time0=%d", __time1, __time0);
|
589 |
|
|
|
590 |
|
|
_ret = (double)(__time1 - __time0);
|
591 |
|
|
|
592 |
|
|
CYG_REPORT_RETVAL(_ret);
|
593 |
|
|
|
594 |
|
|
return _ret;
|
595 |
|
|
} // difftime()
|
596 |
|
|
|
597 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_DIFFTIME_INLINE
|
598 |
|
|
|
599 |
|
|
///////////////////////////////
|
600 |
|
|
// mktime() - ISO C 7.12.2.3 //
|
601 |
|
|
///////////////////////////////
|
602 |
|
|
//
|
603 |
|
|
// This converts a "struct tm" to a "time_t"
|
604 |
|
|
//
|
605 |
|
|
|
606 |
|
|
#ifdef CYGIMP_LIBC_TIME_MKTIME_INLINE
|
607 |
|
|
|
608 |
|
|
#include // for cyg_libc_time_normalize_structtm()
|
609 |
|
|
// and cyg_libc_time_month_lengths
|
610 |
|
|
|
611 |
|
|
CYGPRI_LIBC_TIME_MKTIME_INLINE time_t
|
612 |
|
|
mktime( struct tm *__timeptr )
|
613 |
|
|
{
|
614 |
|
|
time_t _ret;
|
615 |
|
|
cyg_count16 _i;
|
616 |
|
|
cyg_count32 _daycount;
|
617 |
|
|
cyg_bool _leap;
|
618 |
|
|
|
619 |
|
|
CYG_REPORT_FUNCNAMETYPE("mktime", "returning %d");
|
620 |
|
|
CYG_REPORT_FUNCARG1( "__timeptr is at address %08x", __timeptr);
|
621 |
|
|
|
622 |
|
|
CYG_CHECK_DATA_PTR(__timeptr, "__timeptr is not a valid pointer!");
|
623 |
|
|
|
624 |
|
|
// First deal with STD/DST. If tm_isdst==-1 (the "autodetect" value)
|
625 |
|
|
// we assume its already in UTC. FIXME: is this correct behaviour? Hmm....
|
626 |
|
|
|
627 |
|
|
#if 0
|
628 |
|
|
// FIXME: This doesn't seem to be the way to go
|
629 |
|
|
if (__timeptr->tm_isdst == 0) { // STD
|
630 |
|
|
// take _off_ the std offset to get us back to UTC from localtime
|
631 |
|
|
__timeptr->tm_sec -= (int)cyg_libc_time_current_std_offset;
|
632 |
|
|
} // if
|
633 |
|
|
else if (__timeptr->tm_isdst > 0) { // DST
|
634 |
|
|
// take _off_ the dst offset to get us back to UTC from localtime
|
635 |
|
|
__timeptr->tm_sec -= (int)cyg_libc_time_current_dst_offset;
|
636 |
|
|
} // if
|
637 |
|
|
#endif
|
638 |
|
|
|
639 |
|
|
cyg_libc_time_normalize_structtm(__timeptr);
|
640 |
|
|
|
641 |
|
|
// check if a time_t can hold the year. FIXME: we assume it is
|
642 |
|
|
// 32 bits which gives the year range 1902 - 2038
|
643 |
|
|
if ( (__timeptr->tm_year <= 2) || (__timeptr->tm_year >= 138) ) {
|
644 |
|
|
CYG_REPORT_RETVAL(-1);
|
645 |
|
|
return (time_t)-1;
|
646 |
|
|
}
|
647 |
|
|
|
648 |
|
|
// fill in the rest of the struct tm i.e. tm_wday and tm_yday
|
649 |
|
|
|
650 |
|
|
_leap = cyg_libc_time_year_is_leap(1900 + __timeptr->tm_year);
|
651 |
|
|
|
652 |
|
|
for (_i=0, _daycount=0; _i<12; ++_i) {
|
653 |
|
|
if (_i == __timeptr->tm_mon) {
|
654 |
|
|
_daycount += __timeptr->tm_mday - 1;
|
655 |
|
|
break;
|
656 |
|
|
} // if
|
657 |
|
|
else {
|
658 |
|
|
_daycount += cyg_libc_time_month_lengths[_leap][_i];
|
659 |
|
|
} // else
|
660 |
|
|
} // for
|
661 |
|
|
|
662 |
|
|
CYG_ASSERT(_i<12, "Reached end of year. __timeptr->tm_mon must be bad");
|
663 |
|
|
|
664 |
|
|
__timeptr->tm_yday = _daycount;
|
665 |
|
|
|
666 |
|
|
// now tm_wday
|
667 |
|
|
|
668 |
|
|
if (__timeptr->tm_year > 70) {
|
669 |
|
|
for (_i=70; _i < __timeptr->tm_year; ++_i)
|
670 |
|
|
_daycount += (cyg_libc_time_year_is_leap(1900 + _i) ? 366 : 365);
|
671 |
|
|
} // if
|
672 |
|
|
else if (__timeptr->tm_year < 70) {
|
673 |
|
|
for (_i=70; _i > __timeptr->tm_year; --_i)
|
674 |
|
|
_daycount -= (cyg_libc_time_year_is_leap(1900 + _i-1) ? 366 : 365);
|
675 |
|
|
} // else if
|
676 |
|
|
|
677 |
|
|
__timeptr->tm_wday = (_daycount + CYGNUM_LIBC_TIME_EPOCH_WDAY) % 7;
|
678 |
|
|
|
679 |
|
|
// if _daycount was negative, on some targets the modulo operator will
|
680 |
|
|
// return negative, so we adjust for that
|
681 |
|
|
|
682 |
|
|
if (__timeptr->tm_wday < 0)
|
683 |
|
|
__timeptr->tm_wday += 7;
|
684 |
|
|
|
685 |
|
|
// now finally work out return value
|
686 |
|
|
|
687 |
|
|
_ret = __timeptr->tm_sec + 60*__timeptr->tm_min + 60*60*__timeptr->tm_hour;
|
688 |
|
|
_ret += _daycount*24*60*60;
|
689 |
|
|
|
690 |
|
|
CYG_REPORT_RETVAL(_ret);
|
691 |
|
|
|
692 |
|
|
return _ret;
|
693 |
|
|
} // mktime()
|
694 |
|
|
|
695 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_MKTIME_INLINE
|
696 |
|
|
|
697 |
|
|
|
698 |
|
|
// Time conversion functions - ISO C 7.12.3
|
699 |
|
|
|
700 |
|
|
////////////////////////////////
|
701 |
|
|
// asctime() - ISO C 7.12.3.1 //
|
702 |
|
|
////////////////////////////////
|
703 |
|
|
//
|
704 |
|
|
// This returns a textual representation of a struct tm
|
705 |
|
|
//
|
706 |
|
|
|
707 |
|
|
#ifdef CYGIMP_LIBC_TIME_ASCTIME_INLINE
|
708 |
|
|
|
709 |
|
|
extern char cyg_libc_time_asctime_buf[];
|
710 |
|
|
|
711 |
|
|
CYGPRI_LIBC_TIME_ASCTIME_INLINE char *
|
712 |
|
|
asctime( const struct tm *__timeptr )
|
713 |
|
|
{
|
714 |
|
|
CYG_REPORT_FUNCNAMETYPE("__asctime", "returning \"%s\"");
|
715 |
|
|
CYG_REPORT_FUNCARG1("__timeptr = %08x", __timeptr);
|
716 |
|
|
|
717 |
|
|
// paranoia
|
718 |
|
|
CYG_CHECK_DATA_PTR(__timeptr, "__timeptr is not a valid pointer!");
|
719 |
|
|
|
720 |
|
|
(void)__asctime_r( __timeptr, cyg_libc_time_asctime_buf );
|
721 |
|
|
|
722 |
|
|
CYG_REPORT_RETVAL(cyg_libc_time_asctime_buf);
|
723 |
|
|
|
724 |
|
|
return cyg_libc_time_asctime_buf;
|
725 |
|
|
} // asctime()
|
726 |
|
|
|
727 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_ASCTIME_INLINE
|
728 |
|
|
|
729 |
|
|
|
730 |
|
|
///////////////////////////////
|
731 |
|
|
// gmtime() - ISO C 7.12.3.3 //
|
732 |
|
|
///////////////////////////////
|
733 |
|
|
//
|
734 |
|
|
// This converts a time_t into a struct tm expressed in UTC
|
735 |
|
|
//
|
736 |
|
|
|
737 |
|
|
#ifdef CYGIMP_LIBC_TIME_GMTIME_INLINE
|
738 |
|
|
|
739 |
|
|
extern struct tm cyg_libc_time_gmtime_buf;
|
740 |
|
|
|
741 |
|
|
CYGPRI_LIBC_TIME_GMTIME_INLINE struct tm *
|
742 |
|
|
gmtime( const time_t *__timer )
|
743 |
|
|
{
|
744 |
|
|
CYG_REPORT_FUNCNAMETYPE("gmtime", "returning %08x");
|
745 |
|
|
CYG_CHECK_DATA_PTR(__timer, "__timer is not a valid pointer!");
|
746 |
|
|
CYG_REPORT_FUNCARG1("*__timer=%d", *__timer);
|
747 |
|
|
|
748 |
|
|
__gmtime_r(__timer, &cyg_libc_time_gmtime_buf);
|
749 |
|
|
|
750 |
|
|
CYG_REPORT_RETVAL(&cyg_libc_time_gmtime_buf);
|
751 |
|
|
|
752 |
|
|
return &cyg_libc_time_gmtime_buf;
|
753 |
|
|
} // gmtime()
|
754 |
|
|
|
755 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_GMTIME_INLINE
|
756 |
|
|
|
757 |
|
|
|
758 |
|
|
//////////////////////////////////
|
759 |
|
|
// localtime() - ISO C 7.12.3.4 //
|
760 |
|
|
//////////////////////////////////
|
761 |
|
|
//
|
762 |
|
|
// This converts a time_t into a struct tm expressed in local time
|
763 |
|
|
//
|
764 |
|
|
|
765 |
|
|
#ifdef CYGIMP_LIBC_TIME_LOCALTIME_INLINE
|
766 |
|
|
|
767 |
|
|
extern struct tm cyg_libc_time_localtime_buf;
|
768 |
|
|
|
769 |
|
|
CYGPRI_LIBC_TIME_LOCALTIME_INLINE struct tm *
|
770 |
|
|
localtime( const time_t *__timer )
|
771 |
|
|
{
|
772 |
|
|
CYG_REPORT_FUNCNAMETYPE("localtime", "returning %08x");
|
773 |
|
|
CYG_CHECK_DATA_PTR(__timer, "__timer is not a valid pointer!");
|
774 |
|
|
CYG_REPORT_FUNCARG1("*__timer=%d", *__timer);
|
775 |
|
|
|
776 |
|
|
__localtime_r(__timer, &cyg_libc_time_localtime_buf);
|
777 |
|
|
|
778 |
|
|
CYG_REPORT_RETVAL(&cyg_libc_time_localtime_buf);
|
779 |
|
|
|
780 |
|
|
return &cyg_libc_time_localtime_buf;
|
781 |
|
|
} // localtime()
|
782 |
|
|
|
783 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_LOCALTIME_INLINE
|
784 |
|
|
|
785 |
|
|
|
786 |
|
|
//////////////////////////////
|
787 |
|
|
// ctime() - ISO C 7.12.3.2 //
|
788 |
|
|
//////////////////////////////
|
789 |
|
|
//
|
790 |
|
|
// This returns asctime(localtime(__timeptr))
|
791 |
|
|
//
|
792 |
|
|
|
793 |
|
|
#ifdef CYGIMP_LIBC_TIME_CTIME_INLINE
|
794 |
|
|
|
795 |
|
|
CYGPRI_LIBC_TIME_CTIME_INLINE char *
|
796 |
|
|
ctime( const time_t *__timer )
|
797 |
|
|
{
|
798 |
|
|
char *_str;
|
799 |
|
|
|
800 |
|
|
CYG_REPORT_FUNCNAMETYPE("ctime", "returning \"%s\"");
|
801 |
|
|
CYG_CHECK_DATA_PTR( __timer, "__timer is not a valid pointer!");
|
802 |
|
|
CYG_REPORT_FUNCARG1("*__timer = %d", *__timer);
|
803 |
|
|
|
804 |
|
|
_str = asctime(localtime(__timer));
|
805 |
|
|
|
806 |
|
|
CYG_REPORT_RETVAL(_str);
|
807 |
|
|
|
808 |
|
|
return _str;
|
809 |
|
|
} // ctime()
|
810 |
|
|
|
811 |
|
|
#endif // ifdef CYGIMP_LIBC_TIME_CTIME_INLINE
|
812 |
|
|
|
813 |
|
|
|
814 |
|
|
#ifdef __cplusplus
|
815 |
|
|
} // extern "C"
|
816 |
|
|
#endif
|
817 |
|
|
|
818 |
|
|
#endif // CYGONCE_LIBC_TIME_INL multiple inclusion protection
|
819 |
|
|
|
820 |
|
|
// EOF time.inl
|