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80 lines
2.2 KiB
80 lines
2.2 KiB
/* |
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* ZeroTier SDK - Network Virtualization Everywhere |
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* Copyright (C) 2011-2018 ZeroTier, Inc. https://www.zerotier.com/ |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* -- |
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* |
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* You can be released from the requirements of the license by purchasing |
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* a commercial license. Buying such a license is mandatory as soon as you |
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* develop commercial closed-source software that incorporates or links |
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* directly against ZeroTier software without disclosing the source code |
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* of your own application. |
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*/ |
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/** |
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* @file |
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* |
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* Platform-specific implementations of common functions |
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*/ |
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#ifndef LIBZT_SYSUTILS_H |
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#define LIBZT_SYSUTILS_H |
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#include <stdint.h> |
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#ifdef _WIN32 |
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#include <Windows.h> |
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#else |
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#include <sys/time.h> |
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#endif |
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/** |
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* @brief Returns the thread-id. Used in debug traces. |
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* |
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* @usage For internal use only. |
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* @return |
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*/ |
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inline unsigned int gettid(); |
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/** |
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* @brief Current time in milliseconds since epoch, platform-aware convenience function. |
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* |
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* @usage For internal use only. |
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* @return Current time in integer form |
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*/ |
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inline uint64_t time_now() |
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{ |
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#ifdef _WIN32 |
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FILETIME ft; |
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SYSTEMTIME st; |
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ULARGE_INTEGER tmp; |
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GetSystemTime(&st); |
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SystemTimeToFileTime(&st,&ft); |
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tmp.LowPart = ft.dwLowDateTime; |
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tmp.HighPart = ft.dwHighDateTime; |
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return (uint64_t)( ((tmp.QuadPart - 116444736000000000LL) / 10000L) + st.wMilliseconds ); |
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#else |
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struct timeval tv; |
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#ifdef __LINUX__ |
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syscall(SYS_gettimeofday,&tv,0); /* fix for musl libc broken gettimeofday bug */ |
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#else |
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gettimeofday(&tv,(struct timezone *)0); |
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#endif |
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return ( (1000LL * (uint64_t)tv.tv_sec) + (uint64_t)(tv.tv_usec / 1000) ); |
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#endif |
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} |
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#endif // _H
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