private AnalogStoreBlock GetBlock(int timeout)
{
AnalogStoreBlock block = null;
lock (((ICollection)queueBlock).SyncRoot)
{
if (queueBlock.Count > 0)
{
block = queueBlock.Dequeue();
}
else
{
blockFinishedEvent.Reset();
}
}
if (block != null || timeout == 0)
{
return(block);
}
if (timeout > 0)
{
blockFinishedEvent.WaitOne(timeout, false);
}
else
{
blockFinishedEvent.WaitOne();
}
return(GetBlock(0));
}
public AnalogFile(AnalogDataManager manager, int type, int index)
{
this.dataManager = manager;
this.Type = type;
this.Index = index;
if (type == 0x42) //半自动电压和电流
{
this.MaxFileSize = 100 * 10 * 1024 * 1024; //每天大约10M文件 按100天计算
}
else
{
this.MaxFileSize = 100 * 1024 * 1024; //每天大约1M文件
}
fileIndex = new AnalogIndexFile(this);
fileData = new AnalogRecordFile(this);
for (int i = 0; i < BlockNum; i++)
{
queueBlock.Enqueue(new AnalogStoreBlock(i, this));
}
Random rnd = new Random();
this.reserveCount = rnd.Next(AnalogStoreBlock.MaxPoint);
currentBlock = NewBlock(null, false);
currentBlock.AddPrevNULL();
}
public AnalogFile(AnalogDataManager manager, int type,int index)
{
this.dataManager = manager;
this.Type = type;
this.Index = index;
if (type == 0x42) //半自动电压和电流
{
this.MaxFileSize =100 * 10 * 1024 * 1024; //每天大约10M文件 按100天计算
}
else
{
this.MaxFileSize = 100 * 1024 * 1024; //每天大约1M文件
}
fileIndex = new AnalogIndexFile(this);
fileData = new AnalogRecordFile(this);
for (int i = 0; i < BlockNum; i++)
{
queueBlock.Enqueue(new AnalogStoreBlock(i, this));
}
Random rnd = new Random();
this.reserveCount = rnd.Next(AnalogStoreBlock.MaxPoint);
currentBlock = NewBlock(null, false);
currentBlock.AddPrevNULL();
}
public void PutBlock(AnalogStoreBlock block)
{
lock (((ICollection)queueBlock).SyncRoot)
{
queueBlock.Enqueue(block);
blockFinishedEvent.Set();
}
}
public void Stop()
{
FinishAll();
AnalogStoreBlock blockStop = new AnalogStoreBlock();
PutDataBlock(blockStop);
blockStop.Wait(10000);
}
public void Flush(bool newOrder)
{
this.dataManager.PutDataBlock(currentBlock);
currentBlock = NewBlock(currentBlock, false);
reserveCount = 0;
if (newOrder)
{
Random rand = new Random();
reserveCount = rand.Next(AnalogStoreBlock.MaxPoint);
}
}
private AnalogStoreBlock NewBlock(AnalogStoreBlock oldBlock, bool newIndex)
{
AnalogStoreBlock newBlock = GetBlock(-1);
if ((oldBlock == null) && (!newIndex))
{
newBlock.IndexRecord = fileIndex.LastIndex;
}
else if (newIndex)
{
newBlock.IndexRecord = fileIndex.NewIndex();
}
else
{
newBlock.IndexRecord = oldBlock.IndexRecord;
}
newBlock.Clear();
return(newBlock);
}
public void AddAnalog(DateTime time, float value, byte digit)
{
if (currentBlock == null)
{
currentBlock = NewBlock(null, false);
}
int pointNum = currentBlock.AddAnalog(time, value, digit);
if (pointNum >= 0)
{
if (pointNum + reserveCount >= AnalogStoreBlock.MaxPoint)
{
Flush(false);
}
}
else
{
this.dataManager.PutDataBlock(currentBlock);
currentBlock = NewBlock(currentBlock, true);
currentBlock.IndexRecord.Type = (pointNum == -2) ? FallbackType.Fallback : FallbackType.Normal;
currentBlock.AddAnalog(time, value, digit);
}
}
public void AddAnalog(DateTime time, float value, byte digit)
{
if (currentBlock == null)
{
currentBlock = NewBlock(null,false);
}
int pointNum = currentBlock.AddAnalog(time, value, digit);
if (pointNum >= 0)
{
if (pointNum + reserveCount >= AnalogStoreBlock.MaxPoint)
{
Flush(false);
}
}
else
{
this.dataManager.PutDataBlock(currentBlock);
currentBlock = NewBlock(currentBlock, true);
currentBlock.IndexRecord.Type = (pointNum == -2) ? FallbackType.Fallback : FallbackType.Normal;
currentBlock.AddAnalog(time, value, digit);
}
}
private AnalogStoreBlock NewBlock(AnalogStoreBlock oldBlock,bool newIndex)
{
AnalogStoreBlock newBlock = GetBlock(-1);
if ((oldBlock == null) && (!newIndex))
{
newBlock.IndexRecord = fileIndex.LastIndex;
}
else if (newIndex)
{
newBlock.IndexRecord = fileIndex.NewIndex();
}
else
{
newBlock.IndexRecord = oldBlock.IndexRecord;
}
newBlock.Clear();
return newBlock;
}
public void PutBlock(AnalogStoreBlock block)
{
lock (((ICollection)queueBlock).SyncRoot)
{
queueBlock.Enqueue(block);
blockFinishedEvent.Set();
}
}
public void Flush(bool newOrder)
{
this.dataManager.PutDataBlock(currentBlock);
currentBlock = NewBlock(currentBlock, false);
reserveCount = 0;
if (newOrder)
{
Random rand = new Random();
reserveCount = rand.Next(AnalogStoreBlock.MaxPoint);
}
}
public void Stop()
{
FinishAll();
AnalogStoreBlock blockStop = new AnalogStoreBlock();
PutDataBlock(blockStop);
blockStop.Wait(10000);
}
