mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-04 16:01:14 -05:00
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#if (defined _WIN32_) || (defined _MSC_VER)
|
|
|
|
/*
|
|
* missing gettimeofday implementation
|
|
* for windows; based on postgresql
|
|
*/
|
|
|
|
#ifndef CUSTOM_WINDOWS_TIME_H_
|
|
#define CUSTOM_WINDOWS_TIME_H_
|
|
|
|
#define _WINSOCKAPI_ // stops windows.h including winsock.h; timeval redefine
|
|
#include <Windows.h>
|
|
#include <stdint.h> // portable: uint64_t MSVC: __int64
|
|
|
|
// MSVC defines this in winsock2.h!?
|
|
typedef struct timeval {
|
|
long tv_sec;
|
|
long tv_usec;
|
|
} timeval;
|
|
|
|
int gettimeofday(struct timeval * tp, struct timezone * tzp)
|
|
{
|
|
// Note: some broken versions only have 8 trailing zero's, the correct epoch has 9 trailing zero's
|
|
// This magic number is the number of 100 nanosecond intervals since January 1, 1601 (UTC)
|
|
// until 00:00:00 January 1, 1970
|
|
static const uint64_t EPOCH = ((uint64_t) 116444736000000000ULL);
|
|
|
|
SYSTEMTIME system_time;
|
|
FILETIME file_time;
|
|
uint64_t time;
|
|
|
|
GetSystemTime( &system_time );
|
|
SystemTimeToFileTime( &system_time, &file_time );
|
|
time = ((uint64_t)file_time.dwLowDateTime ) ;
|
|
time += ((uint64_t)file_time.dwHighDateTime) << 32;
|
|
|
|
tp->tv_sec = (long) ((time - EPOCH) / 10000000L);
|
|
tp->tv_usec = (long) (system_time.wMilliseconds * 1000);
|
|
return 0;
|
|
}
|
|
|
|
|
|
#endif // CUSTOM_WINDOWS_TIME_H_
|
|
#endif // _WIN32_
|