diff options
Diffstat (limited to 'zen/tick_count.h')
| -rw-r--r-- | zen/tick_count.h | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/zen/tick_count.h b/zen/tick_count.h index d005a828..893d8e80 100644 --- a/zen/tick_count.h +++ b/zen/tick_count.h @@ -1,6 +1,6 @@ // ************************************************************************** -// * This file is part of the zenXML project. It is distributed under the * -// * Boost Software License: http://www.boost.org/LICENSE_1_0.txt * +// * This file is part of the FreeFileSync project. It is distributed under * +// * GNU General Public License: http://www.gnu.org/licenses/gpl.html * // * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved * // ************************************************************************** @@ -10,13 +10,13 @@ #include <cstdint> #include "type_traits.h" #include "basic_math.h" -#ifdef FFS_WIN +#ifdef ZEN_WIN #include "win.h" //includes "windows.h" -#elif defined FFS_LINUX +#elif defined ZEN_LINUX #include <time.h> //Posix ::clock_gettime() -#elif defined FFS_MAC +#elif defined ZEN_MAC #include <mach/mach_time.h> #endif //#include <algorithm> @@ -57,11 +57,11 @@ TickVal getTicks(); //return invalid value on error: !TickVal::isValid() class TickVal { public: -#ifdef FFS_WIN +#ifdef ZEN_WIN typedef LARGE_INTEGER NativeVal; -#elif defined FFS_LINUX +#elif defined ZEN_LINUX typedef timespec NativeVal; -#elif defined FFS_MAC +#elif defined ZEN_MAC typedef uint64_t NativeVal; #endif @@ -71,16 +71,16 @@ public: inline friend std::int64_t dist(const TickVal& lhs, const TickVal& rhs) { -#ifdef FFS_WIN +#ifdef ZEN_WIN return numeric::dist(lhs.val_.QuadPart, rhs.val_.QuadPart); //std::abs(a - b) can lead to overflow! -#elif defined FFS_LINUX +#elif defined ZEN_LINUX const auto distSec = numeric::dist(lhs.val_.tv_sec, rhs.val_.tv_sec); const auto distNsec = numeric::dist(lhs.val_.tv_nsec, rhs.val_.tv_nsec); if (distSec > (std::numeric_limits<std::int64_t>::max() - distNsec) / 1000000000) //truncate instead of overflow! return std::numeric_limits<std::int64_t>::max(); return distSec * 1000000000 + distNsec; -#elif defined FFS_MAC +#elif defined ZEN_MAC return numeric::dist(lhs.val_, rhs.val_); #endif } @@ -88,13 +88,13 @@ public: inline friend bool operator<(const TickVal& lhs, const TickVal& rhs) { -#ifdef FFS_WIN +#ifdef ZEN_WIN return lhs.val_.QuadPart < rhs.val_.QuadPart; -#elif defined FFS_LINUX +#elif defined ZEN_LINUX if (lhs.val_.tv_sec != rhs.val_.tv_sec) return lhs.val_.tv_sec < rhs.val_.tv_sec; return lhs.val_.tv_nsec < rhs.val_.tv_nsec; -#elif defined FFS_MAC +#elif defined ZEN_MAC return lhs.val_ < rhs.val_; #endif } @@ -109,17 +109,17 @@ private: inline std::int64_t ticksPerSec() //return 0 on error { -#ifdef FFS_WIN +#ifdef ZEN_WIN LARGE_INTEGER frequency = {}; if (!::QueryPerformanceFrequency(&frequency)) //MSDN promises: "The frequency cannot change while the system is running." return 0; static_assert(sizeof(std::int64_t) >= sizeof(frequency.QuadPart), ""); return frequency.QuadPart; -#elif defined FFS_LINUX +#elif defined ZEN_LINUX return 1000000000; //precision: nanoseconds -#elif defined FFS_MAC +#elif defined ZEN_MAC mach_timebase_info_data_t tbi = {}; if (::mach_timebase_info(&tbi) != KERN_SUCCESS) return 0; @@ -131,18 +131,18 @@ std::int64_t ticksPerSec() //return 0 on error inline TickVal getTicks() //return !isValid() on error { -#ifdef FFS_WIN +#ifdef ZEN_WIN LARGE_INTEGER now = {}; if (!::QueryPerformanceCounter(&now)) //msdn: SetThreadAffinityMask() may be required if there are bugs in BIOS or HAL" return TickVal(); -#elif defined FFS_LINUX +#elif defined ZEN_LINUX //gettimeofday() seems fine but is deprecated timespec now = {}; if (::clock_gettime(CLOCK_MONOTONIC_RAW, &now) != 0) //CLOCK_MONOTONIC measures time reliably across processors! return TickVal(); -#elif defined FFS_MAC +#elif defined ZEN_MAC uint64_t now = ::mach_absolute_time(); //can this call fail??? #endif return TickVal(now); |