int
TimeUtil_NtTimeToUnixTime(struct timespec *unixTime, // OUT: Time in Unix format
VmTimeType ntTime) // IN: Time in Windows NT format
{
#ifndef VM_X86_64
ASSERT(unixTime);
/* We assume that time_t is 32bit */
ASSERT(sizeof (unixTime->tv_sec) == 4);
/* Cap NT time values that are outside of Unix time's range */
if (ntTime >= UNIX_S32_MAX) {
unixTime->tv_sec = 0x7FFFFFFF;
unixTime->tv_nsec = 0;
return 1;
}
#else
ASSERT(unixTime);
#endif // VM_X86_64
if (ntTime < UNIX_EPOCH) {
unixTime->tv_sec = 0;
unixTime->tv_nsec = 0;
return -1;
}
#ifdef __i386__ // only for 32-bit x86
{
uint32 sec;
uint32 nsec;
Div643232(ntTime - UNIX_EPOCH, 10000000, &sec, &nsec);
unixTime->tv_sec = sec;
unixTime->tv_nsec = nsec * 100;
}
#else
unixTime->tv_sec = (ntTime - UNIX_EPOCH) / 10000000;
unixTime->tv_nsec = ((ntTime - UNIX_EPOCH) % 10000000) * 100;
#endif // __i386__
return 0;
}
int
HgfsConvertFromNtTimeNsec(struct timespec *unixTime, // OUT: Time in UNIX format
uint64 ntTime) // IN: Time in Windows NT format
{
#if !defined(VM_X86_64) && !defined(__arm__)
uint32 sec;
uint32 nsec;
ASSERT(unixTime);
/* We assume that time_t is 32bit */
ASSERT_ON_COMPILE(sizeof (unixTime->tv_sec) == 4);
/* Cap NT time values that are outside of Unix time's range */
if (ntTime >= UNIX_S32_MAX) {
unixTime->tv_sec = 0x7FFFFFFF;
unixTime->tv_nsec = 0;
return 1;
}
#else
ASSERT(unixTime);
#endif
if (ntTime < UNIX_EPOCH) {
unixTime->tv_sec = 0;
unixTime->tv_nsec = 0;
return -1;
}
#if !defined(VM_X86_64) && !defined(__arm__)
Div643232(ntTime - UNIX_EPOCH, 10000000, &sec, &nsec);
unixTime->tv_sec = sec;
unixTime->tv_nsec = nsec * 100;
#else
unixTime->tv_sec = (ntTime - UNIX_EPOCH) / 10000000;
unixTime->tv_nsec = ((ntTime - UNIX_EPOCH) % 10000000) * 100;
#endif
return 0;
}
