60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
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* See http://creativecommons.org/publicdomain/zero/1.0/ for more information.
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*
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* Copyright 2016-2017 (c) Fraunhofer IOSB (Author: Julius Pfrommer)
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* Copyright 2017 (c) Stefan Profanter, fortiss GmbH
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* Copyright 2017 (c) Thomas Stalder, Blue Time Concept SA
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*/
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#include <open62541/types.h>
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#ifdef UA_ARCHITECTURE_POSIX
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#include <time.h>
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#include <sys/time.h>
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#if defined(__APPLE__) || defined(__MACH__)
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# include <mach/clock.h>
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# include <mach/mach.h>
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#endif
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UA_DateTime UA_DateTime_now(void) {
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return (tv.tv_sec * UA_DATETIME_SEC) + (tv.tv_usec * UA_DATETIME_USEC) + UA_DATETIME_UNIX_EPOCH;
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}
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/* Credit to https://stackoverflow.com/questions/13804095/get-the-time-zone-gmt-offset-in-c */
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UA_Int64 UA_DateTime_localTimeUtcOffset(void) {
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time_t gmt, rawtime = time(NULL);
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struct tm *ptm;
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struct tm gbuf;
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ptm = gmtime_r(&rawtime, &gbuf);
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// Request that mktime() looksup dst in timezone database
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ptm->tm_isdst = -1;
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gmt = mktime(ptm);
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return (UA_Int64) (difftime(rawtime, gmt) * UA_DATETIME_SEC);
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}
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UA_DateTime UA_DateTime_nowMonotonic(void) {
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#if defined(__APPLE__) || defined(__MACH__)
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/* OS X does not have clock_gettime, use clock_get_time */
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clock_serv_t cclock;
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mach_timespec_t mts;
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host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock);
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clock_get_time(cclock, &mts);
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mach_port_deallocate(mach_task_self(), cclock);
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return (mts.tv_sec * UA_DATETIME_SEC) + (mts.tv_nsec / 100);
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#elif !defined(CLOCK_MONOTONIC_RAW)
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (ts.tv_sec * UA_DATETIME_SEC) + (ts.tv_nsec / 100);
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#else
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
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return (ts.tv_sec * UA_DATETIME_SEC) + (ts.tv_nsec / 100);
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#endif
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}
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#endif /* UA_ARCHITECTURE_POSIX */
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