s64 iTime_getLocalMs(void)
{
SYSTEMTIME time;
GetLocalTime(&time);
return(iTime_computeMilliseconds(&time));
}
s64 iTime_getSystemMs(void)
{
SYSTEMTIME time;
GetSystemTime(&time);
return(iTime_computeMilliseconds(&time));
}
//////////
//
// Called to potentially retry so long as the callback returns true.
//
//////
SDiskLock* iDisk_lock_range_retryCallback(SThisCode* thisCode, SBuilder* lockRoot, s32 tnFile, s64 tnOffset, s32 tnLength, uptr tnCallbackFunction, uptr tnExtra)
{
s32 lnAttempts, lnMillisecondsDelta;
s64 lnMillisecondsStart;
SDiskLock* dl;
SDiskLockCallback dcb;
//////////
// Initialize
//////
memset(&dcb, 0, sizeof(dcb));
dcb._diskRetryLockCallback = tnCallbackFunction;
dcb.extra = tnExtra;
lnAttempts = 0;
//////////
// Begin the trial
//////
GetLocalTime(&dcb.timeStart);
lnMillisecondsStart = iTime_computeMilliseconds(&dcb.timeStart);
while (1)
{
//////////
// Try to lock
//////
++lnAttempts;
dl = iDisk_lock_range(thisCode, lockRoot, tnFile, tnOffset, tnLength, tnExtra);
//////////
// Were we successful?
//////
if (dl && dl->nLength == tnLength)
return(dl); // Yes
//////////
// When we get here, we need to see if they want to continue waiting or not
//////
GetLocalTime(&dcb.timeNow);
lnMillisecondsDelta = (s32)iTime_computeMillisecondsBetween(&dcb.timeNow, lnMillisecondsStart);
//////////
// Inquire politely about our retry
//////
if (!dcb._diskRetryLockCallback || !dcb.diskRetryLockCallback(thisCode, &dcb, lnAttempts, lnMillisecondsDelta))
{
// They inform us: "No more waiting!"
return(dl); // Failure
}
// If we get here, try again
}
}
//////////
//
// Time functions
//
//////
// Computes time1 - time2
s64 iTime_computeMillisecondsBetween(SYSTEMTIME* time1, SYSTEMTIME* time2)
{
s64 lnMs1, lnMs2;
// Compute the times together
if (time1 && time2)
{
// Grab each
lnMs1 = iTime_computeMilliseconds(time1);
lnMs2 = iTime_computeMilliseconds(time2);
// Return the result
return(lnMs1 - lnMs2);
} else {
//
return(0);
}
}
