#include "c.h"
#include <sysinfoapi.h>
#include <sys/time.h>

Include dependency graph for win32gettimeofday.c:

Macros
#define	FILETIME_UNITS_PER_SEC 10000000L

#define	FILETIME_UNITS_PER_USEC 10

Functions
int	gettimeofday (struct timeval tp, void tzp)

Variables
static const unsigned __int64	epoch = UINT64CONST(116444736000000000)

Macro Definition Documentation

◆ FILETIME_UNITS_PER_SEC

#define FILETIME_UNITS_PER_SEC 10000000L

Definition at line 42 of file win32gettimeofday.c.

◆ FILETIME_UNITS_PER_USEC

#define FILETIME_UNITS_PER_USEC 10

Definition at line 43 of file win32gettimeofday.c.

Function Documentation

◆ gettimeofday()

int gettimeofday	(	struct timeval *	tp,
		void *	tzp
	)

Definition at line 53 of file win32gettimeofday.c.

 {
     FILETIME    file_time;
     ULARGE_INTEGER ularge;
  
     /*
      * 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);
  
     GetSystemTimePreciseAsFileTime(&file_time);
     ularge.LowPart = file_time.dwLowDateTime;
     ularge.HighPart = file_time.dwHighDateTime;
  
     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);
  
     return 0;
 }

References Assert, epoch, FILETIME_UNITS_PER_SEC, and FILETIME_UNITS_PER_USEC.

Referenced by basic_archive_file(), BootStrapXLOG(), feGetCurrentTimestamp(), get_formatted_log_time(), GetCurrentTimestamp(), GuessControlValues(), IsCheckpointOnSchedule(), libpq_prng_init(), log_status_format(), main(), make_outputdirs(), modify_subscriber_sysid(), PerformRadiusTransaction(), pg_rusage_init(), pqTraceFormatTimestamp(), ResetUsage(), run_permutation(), ShowUsage(), timeofday(), and try_complete_step().

Variable Documentation

◆ epoch

const unsigned __int64 epoch = UINT64CONST(116444736000000000)

static

Definition at line 36 of file win32gettimeofday.c.

Referenced by AdjustToFullTransactionId(), AdvanceNextFullTransactionIdPastXid(), basic_archive_file(), FullTransactionIdFromEpochAndXid(), GetEpochTime(), gettimeofday(), timestamp_part_common(), timestamptz_part_common(), TransactionIdInRecentPast(), widen_snapshot_xid(), and XLogRecGetFullXid().

Macros

Functions