//iterates the predicate over each page up to the page where the predicate paramenter returns true,
//this method works for dependent operations that need to be executed in increasing order.
//it is somewhat slower than the above as the predicate function is executed outside the task.
static void IterateUntil(Func <ulong, ushort[], bool> prdct)
{
PrcsSpc[] ps = new PrcsSpc[NUMPRCSPCS];
for (var s = 0u; s < NUMPRCSPCS; ++s)
{
var buf = new ushort[BFSZ];
ps[s] = new PrcsSpc {
buf = buf, tsk = cullbftsk(s * BFRNG, buf, (bfr) => { })
};
}
for (var ndx = 0UL; ; ndx += BFRNG)
{
ps[0].tsk.Wait(); var buf = ps[0].buf; var lowi = ndx; if (prdct(lowi, buf))
{
break;
}
for (var s = 0u; s < NUMPRCSPCS - 1; ++s)
{
ps[s] = ps[s + 1];
}
ps[NUMPRCSPCS - 1] = new PrcsSpc {
buf = buf,
tsk = cullbftsk(ndx + NUMPRCSPCS * BFRNG, buf, (bfr) => { })
};
}
}
//iterates the action over each page up to the page including the top_number,
//making an adjustment to the top limit for the last page.
//this method works for non-dependent actions that can be executed in any order.
static void IterateTo(ulong top_number, Action <ulong, uint, ushort[]> actn)
{
PrcsSpc[] ps = new PrcsSpc[NUMPRCSPCS]; for (var s = 0u; s < NUMPRCSPCS; ++s)
{
ps[s] = new PrcsSpc {
buf = new ushort[BFSZ],
tsk = Task.Factory.StartNew(() => { })
}
}
;
var topndx = (top_number - FSTBP) >> 1; for (ulong ndx = 0; ndx <= topndx;)
{
ps[0].tsk.Wait(); var buf = ps[0].buf; for (var s = 0u; s < NUMPRCSPCS - 1; ++s)
{
ps[s] = ps[s + 1];
}
var lowi = ndx; var nxtndx = ndx + BFRNG; var lim = topndx < nxtndx ? (uint)(topndx - ndx + 1) : BFRNG;
ps[NUMPRCSPCS - 1] = new PrcsSpc {
buf = buf, tsk = cullbftsk(ndx, buf, (b) => actn(lowi, lim, b))
};
ndx = nxtndx;
}
for (var s = 0u; s < NUMPRCSPCS; ++s)
{
ps[s].tsk.Wait();
}
}
public nmrtr()
{
for (var s = 0u; s < NUMPRCSPCS; ++s)
{
ps[s] = new PrcsSpc {
buf = new ushort[BFSZ]
}
}
;
for (var s = 1u; s < NUMPRCSPCS; ++s)
{
ps[s].tsk = cullbftsk((s - 1u) * BFRNG, ps[s].buf, (bfr) => { });
}
buf = ps[0].buf;
}
ulong _curr, i = (ulong)-WHLPTRN[WHTS - 1]; int b = -BWHLPRMS.Length - 1; uint wi = WHTS - 1; ushort v, msk = 0;