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| 1 | +/* |
| 2 | + * This file is part of the OpenKinect Project. http://www.openkinect.org |
| 3 | + * |
| 4 | + * Copyright (c) 2010 Brandyn White ([email protected]) |
| 5 | + * |
| 6 | + * This code is licensed to you under the terms of the Apache License, version |
| 7 | + * 2.0, or, at your option, the terms of the GNU General Public License, |
| 8 | + * version 2.0. See the APACHE20 and GPL2 files for the text of the licenses, |
| 9 | + * or the following URLs: |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * http://www.gnu.org/licenses/gpl-2.0.txt |
| 12 | + * |
| 13 | + * If you redistribute this file in source form, modified or unmodified, you |
| 14 | + * may: |
| 15 | + * 1) Leave this header intact and distribute it under the same terms, |
| 16 | + * accompanying it with the APACHE20 and GPL20 files, or |
| 17 | + * 2) Delete the Apache 2.0 clause and accompany it with the GPL2 file, or |
| 18 | + * 3) Delete the GPL v2 clause and accompany it with the APACHE20 file |
| 19 | + * In all cases you must keep the copyright notice intact and include a copy |
| 20 | + * of the CONTRIB file. |
| 21 | + * |
| 22 | + * Binary distributions must follow the binary distribution requirements of |
| 23 | + * either License. |
| 24 | + */ |
| 25 | +#pragma once |
| 26 | + |
| 27 | +#include <math.h> |
| 28 | +#ifdef _WIN32 |
| 29 | + #include <direct.h> |
| 30 | + #include <windows.h> |
| 31 | + #define snprintf _snprintf |
| 32 | + #define popen _popen |
| 33 | +#else |
| 34 | + #include <time.h> |
| 35 | + #include <unistd.h> |
| 36 | +#endif |
| 37 | + |
| 38 | + |
| 39 | +double get_time() |
| 40 | +{ |
| 41 | +#ifdef _WIN32 |
| 42 | + SYSTEMTIME st; |
| 43 | + GetSystemTime(&st); |
| 44 | + FILETIME ft; |
| 45 | + SystemTimeToFileTime(&st, &ft); |
| 46 | + ULARGE_INTEGER li; |
| 47 | + li.LowPart = ft.dwLowDateTime; |
| 48 | + li.HighPart = ft.dwHighDateTime; |
| 49 | + // FILETIME is given as a 64-bit value for the number of 100-nanosecond |
| 50 | + // intervals that have passed since Jan 1, 1601 (UTC). The difference between that |
| 51 | + // epoch and the POSIX epoch (Jan 1, 1970) is 116444736000000000 such ticks. |
| 52 | + uint64_t total_usecs = (li.QuadPart - 116444736000000000L) / 10L; |
| 53 | + return (total_usecs / 1000000.); |
| 54 | +#else |
| 55 | + struct timeval cur; |
| 56 | + gettimeofday(&cur, NULL); |
| 57 | + return cur.tv_sec + cur.tv_usec / 1000000.; |
| 58 | +#endif |
| 59 | +} |
| 60 | + |
| 61 | +void sleep_highres(double tm) |
| 62 | +{ |
| 63 | +#ifdef _WIN32 |
| 64 | + int msec = floor(tm * 1000); |
| 65 | + if (msec > 0) { |
| 66 | + Sleep(msec); |
| 67 | + } |
| 68 | +#else |
| 69 | + int sec = floor(tm); |
| 70 | + int usec = (tm - sec) * 1000000; |
| 71 | + if (tm > 0) { |
| 72 | + sleep(sec); |
| 73 | + usleep(usec); |
| 74 | + } |
| 75 | +#endif |
| 76 | +} |
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