public Boolean ReadScoop(int scoop, long totalNonces, long startNonce, Scoop target, int limit)
{
_lPosition = scoop * (64 * totalNonces) + startNonce * 64;
try {
_fs.Seek(_lPosition, SeekOrigin.Begin);
}
catch (Exception e)
{
MessageBox.Show("Scoop: " + scoop.ToString() + " " + e.Message, "I/O Error - Seek to read", MessageBoxButtons.OK);
return(false);
}
try {
//interrupt avoider 1mb read 64*16384
for (int i = 0; i < limit * 64; i += (64 * 16384))
{
_fs.Read(target.byteArrayField, i, Math.Min(64 * 16384, limit * 64 - i));
}
}
catch (Exception e)
{
MessageBox.Show("Scoop: " + scoop.ToString() + " " + e.Message, "I/O Error - Read", MessageBoxButtons.OK);
return(false);
}
_lPosition += limit * 64;
return(true);
}
public Boolean WriteScoop(int scoop, long totalNonces, long startNonce, Scoop source, int limit, Int64 offset)
{
_lPosition = scoop * (64 * totalNonces) + startNonce * 64 + offset;
try
{
llda.Seek(_lPosition);
}
catch (Exception e)
{
MessageBox.Show("Scoop: " + scoop.ToString() + " " + e.Message, "I/O Error - Seek to write", MessageBoxButtons.OK);
return(false);
}
try
{
//interrupt avoider 1mb write 64*16384
//for (int i = 0; i < limit * 64; i += (8 * 16384))
// llda.Write(source.byteArrayField, i, Math.Min(8 * 16384, limit * 64 - i));
//Justwrite
llda.Write(source.byteArrayField, 0, limit * 64);
}
catch (Exception e)
{
MessageBox.Show("Scoop: " + scoop.ToString() + " " + e.Message, "I/O Error - Write", MessageBoxButtons.OK);
return(false);
}
_lPosition += limit * 64;
return(true);
}
//Convert Poc1>Poc2 and vice versa
private static void Poc1poc2shuffle(Scoop scoop1, Scoop scoop2, int limit)
{
byte[] buffer = new byte[32];
for (int i = 0; i < limit; i++)
{
Buffer.BlockCopy(scoop1.byteArrayField, 64 * i + 32, buffer, 0, 32);
Buffer.BlockCopy(scoop2.byteArrayField, 64 * i + 32, scoop1.byteArrayField, 64 * i + 32, 32);
Buffer.BlockCopy(buffer, 0, scoop2.byteArrayField, 64 * i + 32, 32);
}
}
//upload a file to a BFS formatted drive
private void btn_upload_Click(object sender, EventArgs e)
{
String drive = drivesView.SelectedItems[0].SubItems[1].Text;
Int32 PbytesPerSector = (Int32.Parse(drivesView.SelectedItems[0].SubItems[4].Text));
halt1 = false;
halt2 = false;
Boolean shuffle = false;
PlotFile temp;
//Let user select plotfile
string filter = "PoC2 plot files | " + tb_id.Text + "_*_*.*| PoC1 plot files|" + tb_id.Text + "_*_*_*.*";
openFileDialog.Filter = filter;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
//Parse Flotfilename
temp = ParsePlotFileName(openFileDialog.FileName);
}
else
{
return;
}
//only support optimized files
if (temp.stagger > 0 && temp.stagger != temp.nonces)
{
return;
}
//always convert PoC1 files
if (temp.stagger == temp.nonces)
{
shuffle = true;
}
//check ID
if (temp.id.ToString() != tb_id.Text)
{
return;
}
//calc startoffset and endoffset for 64 nonces alignment
UInt64 startNonceR = temp.startNonce / 64 * 64;
UInt64 startOffset64 = startNonceR < temp.startNonce ? startNonceR + 64 - temp.startNonce : 0;
UInt32 endOffset64 = temp.nonces - (UInt32)startOffset64 - (temp.nonces - (UInt32)startOffset64) / 64 * 64;
//check last file and offer to insert dummy file
//Todo
//Create file in bfsTOC
int file = BFS.AddPlotFile(drive, temp.startNonce + startOffset64, temp.nonces - (UInt32)startOffset64 - endOffset64, 2, 0);
if (file > -1)
{
FillBFSView(drive);
}
else
{
return;
}
//Get offsets
startOffset = BFS.bfsTOC.plotFiles[file].startPos;
scoopOffset = BFS.bfsTOC.diskspace / 4096;
//transfer file
//open source handle
ScoopReadWriter reader;
reader = new ScoopReadWriter(openFileDialog.FileName);
reader.OpenR(true);
ScoopReadWriter writer;
writer = new ScoopReadWriter(drive);
writer.OpenW();
//Allocate memory
int limit = 4096 * 4096 / 1024; //Write cache, 1MB
Scoop scoop1 = new Scoop(Math.Min((Int32)temp.nonces, limit)); //space needed for one partial scoop
Scoop scoop2 = new Scoop(Math.Min((Int32)temp.nonces, limit)); //space needed for one partial scoop
Scoop scoop3 = new Scoop(Math.Min((Int32)temp.nonces, limit)); //space needed for one partial scoop
Scoop scoop4 = new Scoop(Math.Min((Int32)temp.nonces, limit)); //space needed for one partial scoop
//create masterplan
int loops = (int)Math.Ceiling((double)(temp.nonces) / limit);
TaskInfo[] masterplan = new TaskInfo[2048 * loops];
for (int y = 0; y < 2048; y++)
{
int zz = 0;
//loop partial scoop
for (int z = (int)startOffset64; (ulong)z < temp.nonces - endOffset64; z += limit)
{
masterplan[y * loops + zz] = new TaskInfo();
masterplan[y * loops + zz].reader = reader;
masterplan[y * loops + zz].writer = writer;
masterplan[y * loops + zz].drive = drive;
masterplan[y * loops + zz].file = file;
masterplan[y * loops + zz].y = y;
masterplan[y * loops + zz].z = z;
masterplan[y * loops + zz].x = y * loops + zz;
masterplan[y * loops + zz].limit = limit;
masterplan[y * loops + zz].src = temp;
masterplan[y * loops + zz].tar = BFS.bfsTOC.plotFiles[file];
masterplan[y * loops + zz].scoop1 = scoop1;
masterplan[y * loops + zz].scoop2 = scoop2;
masterplan[y * loops + zz].scoop3 = scoop3;
masterplan[y * loops + zz].scoop4 = scoop4;
masterplan[y * loops + zz].shuffle = shuffle;
masterplan[y * loops + zz].end = masterplan.LongLength;
masterplan[y * loops + zz].startOffset64 = (int)startOffset64;
masterplan[y * loops + zz].endOffset64 = (int)endOffset64;
zz += 1;
}
}
//enable stats
tbl_x.Visible = true;
tbl_status.Visible = true;
tbl_progress.Visible = true;
tbl_progress.Maximum = 2048;
var task1 = Task.Factory.StartNew(() => Th_copy(masterplan));
}
