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//==========================================================================

//

//        wallclock2.cxx

//

//        WallClock battery backed up test

//

//==========================================================================

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// This file is part of eCos, the Embedded Configurable Operating System.   

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//

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// for more details.                                                        

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//

// 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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//==========================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):     jskov

// Contributors:  jskov

// Date:          2000-03-29

// Description:   Tests the WallClock device.

//                Prints wallclock setting (for human verification that time

//                matches the expected value). Then tries to set/restore

//                clock value, and verifies that the WallClock epoch matches

//                that of the libc.

//####DESCRIPTIONEND####

// -------------------------------------------------------------------------

#include <pkgconf/system.h>

#include <cyg/infra/testcase.h>

#include <cyg/infra/diag.h>

#ifdef CYGPKG_LIBC_TIME

#include <pkgconf/libc_time.h>

#endif

#ifdef CYGPKG_LIBC_STARTUP

#include <pkgconf/libc_startup.h>

#endif

#if !defined(CYGSEM_LIBC_TIME_CLOCK_WORKING)

# define NA_MSG "Requires libc time functions"

#elif !defined(CYGPKG_LIBC_STARTUP)

# define NA_MSG "Requires libc startup package"

#endif

#ifndef NA_MSG

#include <time.h>

#include <string.h>                     // strcmp

#include <cyg/io/wallclock.hxx>         // The WallClock API

// -------------------------------------------------------------------------

externC int

main (void )

{

    time_t now, test, test2;

    CYG_TEST_INIT();

    // make this predictable - independent of the user option

    cyg_libc_time_setzoneoffsets(0, 3600);

    cyg_libc_time_setdst( CYG_LIBC_TIME_DSTOFF );

    // Print out current setting so a human can verify that clock state

    // was valid.

    now = (time_t) Cyg_WallClock::wallclock->get_current_time();

    diag_printf("WallClock is set to: %s", ctime(&now));

    // Check that set/get works

    Cyg_WallClock::wallclock->set_current_time( 0 );

    test = (time_t) Cyg_WallClock::wallclock->get_current_time();

    // 2000.03.01 00:00:00 UTC

    Cyg_WallClock::wallclock->set_current_time( 951868800 );

    test2 = (time_t) Cyg_WallClock::wallclock->get_current_time();

    // Should test 2100 and 2400 leap year calculations as well, but 

    // these would overflow with today's time_t.

    Cyg_WallClock::wallclock->set_current_time( now );

    CYG_TEST_PASS_FAIL(2 >= test,  // each operation can take one second

                       "Can set WallClock to epoch");

    CYG_TEST_PASS_FAIL(951868800+2 > test2 &&

                       951868800 <= test2,

                       "WallClock date conversion Y2K safe");

    // Test that the wallclock and libc use same epoch.

    test = (time_t) 0;

    CYG_TEST_PASS_FAIL(!strcmp(ctime(&test), "Thu Jan 01 00:00:00 1970\n"),

                       "WallClock epoch matches libc epoch");

    CYG_TEST_FINISH("Finished wallclock battery test");

}

#else 

externC void

cyg_start( void )

{

    CYG_TEST_INIT();

    CYG_TEST_PASS_FINISH(NA_MSG);

}

#endif // NA_MSG

// -------------------------------------------------------------------------

// EOF wallclock2.cxx