diff options
| author | Ethan Morgan <ethan@gweithio.com> | 2026-02-14 16:44:06 +0000 |
|---|---|---|
| committer | Ethan Morgan <ethan@gweithio.com> | 2026-02-14 16:44:06 +0000 |
| commit | 54409423f767d8b1cf30cb7d0efca6b4ca138823 (patch) | |
| tree | d915ac7828703ce4b963efdd9728a1777ba18c1e /vcpkg/ports/gettimeofday/gettimeofday.c | |
Diffstat (limited to 'vcpkg/ports/gettimeofday/gettimeofday.c')
| -rw-r--r-- | vcpkg/ports/gettimeofday/gettimeofday.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/vcpkg/ports/gettimeofday/gettimeofday.c b/vcpkg/ports/gettimeofday/gettimeofday.c new file mode 100644 index 0000000..62abf34 --- /dev/null +++ b/vcpkg/ports/gettimeofday/gettimeofday.c @@ -0,0 +1,67 @@ +/* + * Copied from PostgreSQL source: + * http://doxygen.postgresql.org/gettimeofday_8c_source.html + * + */ + +/* + * gettimeofday.c + * Win32 gettimeofday() replacement + * + * src/port/gettimeofday.c + * + * Copyright (c) 2003 SRA, Inc. + * Copyright (c) 2003 SKC, Inc. + * + * Permission to use, copy, modify, and distribute this software and + * its documentation for any purpose, without fee, and without a + * written agreement is hereby granted, provided that the above + * copyright notice and this paragraph and the following two + * paragraphs appear in all copies. + * + * IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, + * INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING + * LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS + * DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * + * THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS + * IS" BASIS, AND THE AUTHOR HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, + * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + */ + +#ifdef _MSC_VER + +#include <winsock2.h> + + +/* FILETIME of Jan 1 1970 00:00:00. */ +static const unsigned __int64 epoch = 116444736000000000Ui64; + +/* + * timezone information is stored outside the kernel so tzp isn't used anymore. + * + * Note: this function is not for Win32 high precision timing purpose. See + * elapsed_time(). + */ +int +gettimeofday(struct timeval * tp, struct timezone * tzp) +{ + FILETIME file_time; + SYSTEMTIME system_time; + ULARGE_INTEGER ularge; + + GetSystemTime(&system_time); + SystemTimeToFileTime(&system_time, &file_time); + ularge.LowPart = file_time.dwLowDateTime; + ularge.HighPart = file_time.dwHighDateTime; + + tp->tv_sec = (long) ((ularge.QuadPart - epoch) / 10000000L); + tp->tv_usec = (long) (system_time.wMilliseconds * 1000); + + return 0; +} + +#endif /* _MSC_VER */ |