open62541/arch/wec7/ua_clock.c

/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
 * See http://creativecommons.org/publicdomain/zero/1.0/ for more information.
 *
 *    Copyright 2018 (c) Stephan Kantelberg
 */

#ifdef UA_ARCHITECTURE_WEC7

#ifndef _BSD_SOURCE
# define _BSD_SOURCE
#endif

#include <open62541/types.h>
#include <time.h>
/* Backup definition of SLIST_ENTRY on mingw winnt.h */
# ifdef SLIST_ENTRY
#  pragma push_macro("SLIST_ENTRY")
#  undef SLIST_ENTRY
#  define POP_SLIST_ENTRY
# endif
# include <windows.h>
/* restore definition */
# ifdef POP_SLIST_ENTRY
#  undef SLIST_ENTRY
#  undef POP_SLIST_ENTRY
#  pragma pop_macro("SLIST_ENTRY")
# endif

UA_DateTime UA_DateTime_now(void) {
    /* Windows filetime has the same definition as UA_DateTime */
    FILETIME ft;
    SYSTEMTIME st;
    GetSystemTime(&st);
    SystemTimeToFileTime(&st, &ft);
    ULARGE_INTEGER ul;
    ul.LowPart = ft.dwLowDateTime;
    ul.HighPart = ft.dwHighDateTime;
    return (UA_DateTime)ul.QuadPart;
}

UA_Int64 UA_DateTime_localTimeUtcOffset(void) {
    return 0;
}

UA_DateTime UA_DateTime_nowMonotonic(void) {
    LARGE_INTEGER freq, ticks;
    QueryPerformanceFrequency(&freq);
    QueryPerformanceCounter(&ticks);
    UA_Double ticks2dt = UA_DATETIME_SEC / (UA_Double)freq.QuadPart;
    return (UA_DateTime)(ticks.QuadPart * ticks2dt);
}

#endif /* UA_ARCHITECTURE_WEC7 */