Originally committed to SVN as r4409.
This commit is contained in:
Amar Takhar 2010-06-03 01:09:41 +00:00
parent b40d709924
commit 61ee7ce92d

View file

@ -24,9 +24,14 @@
#include <string>
#include <fstream>
#include <time.h>
#include <windows.h>
#endif
#include <string.h>
//#include <string.h>
#include "libaegisub/types.h"
#include "libaegisub/util.h"
#include "libaegisub/util_win.h"
@ -70,6 +75,44 @@ std::string ErrorString(DWORD error) {
return str;
}
/// @brief Get seconds and microseconds.
/// @param tv[out] timeval struct
/// This code is from http://www.suacommunity.com/dictionary/gettimeofday-entry.php
void time_log(timeval &tv) {
#if defined(_MSC_VER) || defined(_MSC_EXTENSIONS)
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000Ui64
#else
#define DELTA_EPOCH_IN_MICROSECS 11644473600000000ULL
#endif
// Define a structure to receive the current Windows filetime
FILETIME ft;
// Initialize the present time to 0 and the timezone to UTC
unsigned __int64 tmpres = 0;
static int tzflag = 0;
GetSystemTimeAsFileTime(&ft);
// The GetSystemTimeAsFileTime returns the number of 100 nanosecond
// intervals since Jan 1, 1601 in a structure. Copy the high bits to
// the 64 bit tmpres, shift it left by 32 then or in the low 32 bits.
tmpres |= ft.dwHighDateTime;
tmpres <<= 32;
tmpres |= ft.dwLowDateTime;
// Convert to microseconds by dividing by 10
tmpres /= 10;
// The Unix epoch starts on Jan 1 1970. Need to subtract the difference
// in seconds from Jan 1 1601.
tmpres -= DELTA_EPOCH_IN_MICROSECS;
// Finally change microseconds to seconds and place in the seconds value.
// The modulus picks up the microseconds.
tv.tv_sec = (long)(tmpres / 1000000UL);
tv.tv_usec = (long)(tmpres % 1000000UL);
}
} // namespace io
} // namespace agi