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Merge pull request #3 from Mahesh1998/windows_conda_lib_cmake
Fixed LIBM target issue and added the missing file gettimeoftheday c
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/* | ||
* win32gettimeofday.c | ||
* Win32 gettimeofday() replacement | ||
* | ||
* src/port/win32gettimeofday.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. | ||
*/ | ||
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#include "c.h" | ||
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#include <sysinfoapi.h> | ||
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#include <sys/time.h> | ||
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/* FILETIME of Jan 1 1970 00:00:00, the PostgreSQL epoch */ | ||
static const unsigned __int64 epoch = UINT64CONST(116444736000000000); | ||
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/* | ||
* FILETIME represents the number of 100-nanosecond intervals since | ||
* January 1, 1601 (UTC). | ||
*/ | ||
#define FILETIME_UNITS_PER_SEC 10000000L | ||
#define FILETIME_UNITS_PER_USEC 10 | ||
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/* | ||
* timezone information is stored outside the kernel so tzp isn't used anymore. | ||
* | ||
* Note: this function is not for Win32 high precision timing purposes. See | ||
* elapsed_time(). | ||
*/ | ||
int | ||
gettimeofday(struct timeval *tp, void *tzp) | ||
{ | ||
FILETIME file_time; | ||
ULARGE_INTEGER ularge; | ||
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/* | ||
* POSIX declines to define what tzp points to, saying "If tzp is not a | ||
* null pointer, the behavior is unspecified". Let's take this | ||
* opportunity to verify that noplace in Postgres tries to use any | ||
* unportable behavior. | ||
*/ | ||
Assert(tzp == NULL); | ||
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GetSystemTimePreciseAsFileTime(&file_time); | ||
ularge.LowPart = file_time.dwLowDateTime; | ||
ularge.HighPart = file_time.dwHighDateTime; | ||
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tp->tv_sec = (long) ((ularge.QuadPart - epoch) / FILETIME_UNITS_PER_SEC); | ||
tp->tv_usec = (long) (((ularge.QuadPart - epoch) % FILETIME_UNITS_PER_SEC) | ||
/ FILETIME_UNITS_PER_USEC); | ||
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return 0; | ||
} |