public static ChacheManager Instence()
{
if (_instance == null)
{
lock (syncLock)
{
if (_instance == null)
{
_instance = new ChacheManager();
IsStopDic = new ConcurrentDictionary <string, bool>();
ReferenceCount = new Dictionary <string, int>();
_lockDic = new Dictionary <string, object>();
}
}
}
return(_instance);
}
public byte[] OutItemchache(string taskId)
{
_customSemphore[taskId].WaitOne();
//手动抛出异常，结束过本次任务
ChacheManager.Instence().ThrowException(taskId, ExceptionEnum.STOPEX.ToString());
byte[] bytes = null;
if (_itemTaskChache.ContainsKey(taskId))
{
bool result = _itemTaskChache[taskId].TryDequeue(out bytes);
}
try
{
_productSemaphore[taskId].Release();
}
catch (Exception ex)
{
Log.WriteLog("Release ProductSemEx:" + ex.Message);
}
return(bytes);
}
public void InputItemTaskChache(string taskId, byte[] tmpbytes, int len, UploadInfo uploadInfo)
{
//手动抛出异常，结束过本次任务
ChacheManager.Instence().ThrowException(taskId, ExceptionEnum.STOPEX.ToString());
int blockSize = uploadInfo.BlockSize;
long fileSize = uploadInfo.FileSize;
int NUMBLOCKS = uploadInfo.NumBlocks;
int LastBlockSize = uploadInfo.LastBlockSize;
//构建块
try
{
if (!_chache.ContainsKey(taskId))
{
byte[] _chacheBytes = new byte[blockSize];
_chache.Add(taskId, _chacheBytes);
_offset.Add(taskId, 0);
_numBlocks.Add(taskId, 0);
}
if (_offset.ContainsKey(taskId))
{
//剩余的字节
int needSize = blockSize - _offset[taskId];
if (len < needSize)
{
Array.Copy(tmpbytes, 0, _chache[taskId], _offset[taskId], len);
_offset[taskId] += len;
}
else
{
int leftSize = len - needSize;
//第一块
Array.Copy(tmpbytes, 0, _chache[taskId], _offset[taskId], needSize);
internalEnqueue(taskId, _chache[taskId], blockSize);
_chache[taskId] = new byte[blockSize];
_offset[taskId] = 0;
//剩余的整块数
int countBlock = leftSize / blockSize;
int fanilSize = leftSize % blockSize;
for (int i = 0; i < countBlock; i++)
{
//多余的块
byte[] newBlockBytes = new byte[blockSize];
Array.Copy(tmpbytes, needSize + i * blockSize, newBlockBytes, 0, blockSize);
internalEnqueue(taskId, newBlockBytes, blockSize);
}
//最后剩余的块
int newoffset = needSize + countBlock * blockSize;
Array.Copy(tmpbytes, newoffset, _chache[taskId], 0, leftSize - countBlock * blockSize);
_offset[taskId] = len - newoffset;
}
//如果是最后一块
if (_numBlocks.ContainsKey(taskId) && _numBlocks[taskId] == NUMBLOCKS - 1)
{
Log.WriteLog("last block-------------" + "m:" + _offset[taskId] + "n:" + LastBlockSize);
if (_offset[taskId] == LastBlockSize)
{
Log.WriteLog("finished-------------");
byte[] newBytes = new byte[LastBlockSize];
Array.Copy(_chache[taskId], newBytes, LastBlockSize);
internalEnqueue(taskId, newBytes, LastBlockSize);
_chache.Remove(taskId);
_offset.Remove(taskId);
_numBlocks.Remove(taskId);
Log.WriteLog("download finished .....");
}
}
}
}
catch (Exception ex)
{
Log.WriteLog("build block:" + ex.ToString());
}
}
