//========================================================================
//
//      settime.cxx
//
//      Date and time support function to set time
//
//========================================================================
// ####ECOSGPLCOPYRIGHTBEGIN####                                            
// -------------------------------------------                              
// This file is part of eCos, the Embedded Configurable Operating System.   
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2007 Free Software Foundation, Inc.
// Copyright (C) 2007 eCosCentric Limited                                   
//
// eCos is free software; you can redistribute it and/or modify it under    
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// version.                                                                 
//
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or    
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License    
// for more details.                                                        
//
// You should have received a copy of the GNU General Public License        
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// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.            
//
// As a special exception, if other files instantiate templates or use      
// macros or inline functions from this file, or you compile this file      
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// this file does not by itself cause the resulting work to be covered by   
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// General Public License v2.                                               
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// ####ECOSGPLCOPYRIGHTEND####                                              
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     jlarmour
// Contributors:  jlarmour
// Date:          1999-02-26
// Purpose:       Provide support function to set the time
// Description:   The wallclock device is used to store the time in UTC
// Usage:         
//
//####DESCRIPTIONEND####
//
//========================================================================

// CONFIGURATION

#include <pkgconf/libc_time.h>          // C library configuration

// INCLUDES

#include <cyg/infra/cyg_type.h>    // Common type definitions and support
#include <time.h>                  // Main date and time definitions
#include <cyg/infra/cyg_ass.h>     // Assertion infrastructure
#include <cyg/infra/cyg_trac.h>    // Tracing infrastructure
#if defined(CYGSEM_LIBC_TIME_SETTIME_WORKING) && defined(CYGPKG_IO_WALLCLOCK)
# include <cyg/io/wallclock.hxx> // Wallclock class definitions
#endif

// FUNCTIONS

/////////////////////////////
// cyg_libc_time_settime() //
/////////////////////////////
//
// This function sets the current time for the system. The time is
// specified as a time_t in UTC. It returns non-zero on error.
//

externC cyg_bool
cyg_libc_time_settime( time_t utctime )
{
    CYG_REPORT_FUNCNAMETYPE("cyg_libc_time_settime", "returning status %d");
    CYG_REPORT_FUNCARG1DV(utctime);

#ifdef CYGSEM_LIBC_TIME_SETTIME_WORKING

# ifdef CYGPKG_POSIX_CLOCKS

    struct timespec ts;
    ts.tv_sec = utctime;
    ts.tv_nsec = 0;
    if( clock_settime( CLOCK_REALTIME, &ts ) != 0 )
    {
        CYG_REPORT_RETVAL(true);
        return true;
    }
    
# else
    
    Cyg_WallClock::wallclock->set_current_time((cyg_uint32) utctime);
    
# endif
    
    CYG_REPORT_RETVAL(false);
    return false;
#else
    CYG_REPORT_RETVAL(true);
    return true;
#endif

} // cyg_libc_time_settime()

// EOF settime.cxx
