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Diffstat (limited to 'tinySAK/src/tsk_time.c')
| -rw-r--r-- | tinySAK/src/tsk_time.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/tinySAK/src/tsk_time.c b/tinySAK/src/tsk_time.c new file mode 100644 index 0000000..5d2d66b --- /dev/null +++ b/tinySAK/src/tsk_time.c @@ -0,0 +1,154 @@ +/* +* Copyright (C) 2009-2010 Mamadou Diop. +* +* Contact: Mamadou Diop <diopmamadou(at)doubango.org> +* +* This file is part of Open Source Doubango Framework. +* +* DOUBANGO is free software: you can redistribute it and/or modify +* it under the terms of the GNU General Public License as published by +* the Free Software Foundation, either version 3 of the License, or +* (at your option) any later version. +* +* DOUBANGO is distributed in the hope that it will be useful, +* but WITHOUT 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 +* along with DOUBANGO. +* +*/ + +/**@file tsk_time.c +* @brief Datetime functions. +* +* @author Mamadou Diop <diopmamadou(at)doubango.org> +* +* @date Created: Sat Nov 8 16:54:58 2009 mdiop +*/ +#include "tsk_time.h" + +#include "tsk_debug.h" + +#if TSK_UNDER_WINDOWS +//# ifdef _WIN32_WCE +# include <Winsock2.h> // timeval +//# endif +# include <windows.h> +#elif defined(__SYMBIAN32__) +# include <_timeval.h> +#else +# include <sys/time.h> +#endif + +#include <time.h> + +/**@defgroup tsk_time_group Datetime functions. +*/ + +#if !HAVE_GETTIMEOFDAY +#if TSK_UNDER_WINDOWS + +/* Thanks to "http://www.cpp-programming.net/c-tidbits/gettimeofday-function-for-windows" */ +#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS) +#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64 +#else +#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL +#endif + +struct timezone +{ + int tz_minuteswest; /* minutes W of Greenwich */ + int tz_dsttime; /* type of dst correction */ +}; + +int gettimeofday(struct timeval *tv, struct timezone *tz) +{ + FILETIME ft; + uint64_t tmpres = 0; + static int tzflag = 0; + + if(tv) + { +#ifdef _WIN32_WCE + SYSTEMTIME st; + GetSystemTime(&st); + SystemTimeToFileTime(&st, &ft); +#else + GetSystemTimeAsFileTime(&ft); +#endif + + tmpres |= ft.dwHighDateTime; + tmpres <<= 32; + tmpres |= ft.dwLowDateTime; + + /*converting file time to unix epoch*/ + tmpres /= 10; /*convert into microseconds*/ + tmpres -= DELTA_EPOCH_IN_MICROSECS; + tv->tv_sec = (long)(tmpres / 1000000UL); + tv->tv_usec = (long)(tmpres % 1000000UL); + } + + if (tz){ + if (!tzflag){ + _tzset(); + tzflag++; + } + tz->tz_minuteswest = _timezone / 60; + tz->tz_dsttime = _daylight; + } + + return 0; +} + +#else +#pragma error "You MUST provide an implement for 'gettimeofday'" +#endif /* WIN32 */ + +#endif /* !HAVE_GETTIMEOFDAY */ + +/**@ingroup tsk_time_group +* The tsk_gettimeofday() function shall obtain the current time, expressed as seconds and microseconds since EPOCH (00:00:00 UTC on 1 January 1970). +* The resolution of the system clock is unspecified. +* @param tv The current time, expressed as seconds and microseconds since EPOCH(00:00:00 UTC on 1 January 1970). +* @param tz The timezone. +* @retval The tsk_gettimeofday() function shall return 0 and no value shall be reserved to indicate an error. +*/ +int tsk_gettimeofday(struct timeval *tv, struct timezone *tz) +{ + return gettimeofday(tv, tz); +} + +/**@ingroup tsk_time_group +* Gets the number of milliseconds in @a tv +* @retval The number of milliseconds +*/ +uint64_t tsk_time_get_ms(struct timeval* tv) +{ + if(!tv){ + TSK_DEBUG_ERROR("Invalid parameter"); + return 0; + } + return (((uint64_t)tv->tv_sec)*(uint64_t)1000) + (((uint64_t)tv->tv_usec)/(uint64_t)1000); +} + +/**@ingroup tsk_time_group +* Gets the number of milliseconds since the EPOCH. +* @retval The number of milliseconds since EPOCH. +*/ +uint64_t tsk_time_epoch() +{ +#if TSK_UNDER_WINDOWS + return (uint64_t)timeGetTime(); +#elif HAVE_CLOCK_GETTIME + struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts); + return (((uint64_t)ts.tv_sec)*(uint64_t)1000) + (((uint64_t)ts.tv_nsec)/(uint64_t)1000000); +#else + struct timeval tv; + gettimeofday(&tv, 0); + return (((uint64_t)tv.tv_sec)*(uint64_t)1000) + (((uint64_t)tv.tv_usec)/(uint64_t)1000); +#endif +} + |
