static uint GetChunkCB(byte[] buffer, uint offset, out ChunkCB chunkCB)
{
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Uint(buffer, offset, out chunkCB.size);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Long(buffer, offset, out chunkCB.sha1);
chunkCB.hint = buffer[offset++];
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Long(buffer, offset, out chunkCB.fo.file);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Long(buffer, offset, out chunkCB.fo.offset);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Uint(buffer, offset, out chunkCB.ChainsListSize);
chunkCB.chains = new long[chunkCB.ChainsListSize];
return(offset);
}
static bool ChainIsPresentInChunkCB(ChunkCB chunkCB, long chain4Lookup)
{
for (int idx = 0; idx < chunkCB.ChainsListSize; idx++)
{
if (chunkCB.chains[idx] == chain4Lookup)
{
return(true);
}
}
return(false);
}
static uint GetChunkCBAndChainList(byte[] buffer, uint offset, out ChunkCB chunkCB)
{
offset = GetChunkCB(buffer, offset, out chunkCB);
long [] chains = new long[chunkCB.ChainsListSize];
for (int idx = 0; idx < chunkCB.ChainsListSize; idx++)
{
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.ByteArray2Long(buffer, offset, out chains[idx]);
ChainsLoaded++;
}
chunkCB.chains = chains;
return(offset);
}
static void GetChunkCBAsByteArray(ChunkCB chunkCB, out byte[] buffer)
{
buffer = new byte[ChunkCB.GetSize(chunkCB.ChainsListSize)];
uint offset = 0;
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Uint2ByteArray(buffer, offset, chunkCB.size);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Long2ByteArray(buffer, offset, chunkCB.sha1);
buffer[offset++] = chunkCB.hint;
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Long2ByteArray(buffer, offset, chunkCB.fo.file);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Long2ByteArray(buffer, offset, chunkCB.fo.offset);
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Uint2ByteArray(buffer, offset, chunkCB.ChainsListSize);
foreach (long l in chunkCB.chains)
{
offset += ByteArrayScalarTypeConversionLib.ByteArrayScalarTypeConversionLib.Long2ByteArray(buffer, offset, l);
}
}
static bool GetChunkCB(long chunk, out ChunkCB chunkCB)
{
//string filename = "datafiles" + "\\"+ FileManager.FileManager.LongName2StringName(chunk, (byte)FileManager.FileTypes.CHUNK_CTRL_FILE_TYPE);
try
{
byte[] buff = fileManager.ReadFile(chunk);
if (buff == null)
{
chunkCB = new ChunkCB();
return(false);
}
if (GetChunkCBAndChainList(buff, 0, out chunkCB) == buff.Length)
{
ChunkExists++;
return(true);
}
}
catch (Exception exc)
{
LogUtility.LogUtility.LogFile("EXCEPTION: " + exc.Message + " " + exc.StackTrace, LogUtility.LogLevels.LEVEL_LOG_HIGH);
}
chunkCB = new ChunkCB();
return(false);
}
static public bool SaveChain(List <long> chunkList, int chunkListIdx, int LastChunkId, byte[] data, int offset, ChunkAndChainManager chunkAndChainManager)
{
ChunkCB chunkCB;
byte[] buf;
bool presentChunks = false;
int savedChunkListIdx = chunkListIdx;
int idx;
Chain chain4Lookup;
if (chunkAndChainManager.chainId4Lookup == 0)
{
GetChainAsByteArray(new long[0], out buf);
chunkAndChainManager.chainId4Lookup = fileManager.AddUpdateChainFile(buf, chunkAndChainManager.chainId4Lookup);
// LogUtility.LogUtility.LogFile("****created new chain " + Convert.ToString(chainId4Lookup), ModuleLogLevel);
ChainsCreated++;
}
else
{
// LogUtility.LogUtility.LogFile("****updating chain " + Convert.ToString(chainId4Lookup), ModuleLogLevel);
ChainsUpdated++;
}
for (; chunkListIdx <= LastChunkId; chunkListIdx++)
{
#if false
if (chunkMap.TryGetValue(chunkId, out chunkCB))
#else
if (!GetChunkCB(chunkList[chunkListIdx], out chunkCB))
#endif
{
chunkCB = new ChunkCB();
chunkCB.sha1 = PackChunking.chunkToSha1(chunkList[chunkListIdx]);
chunkCB.size = (uint)PackChunking.chunkToLen(chunkList[chunkListIdx]);
fileManager.AddNewChunk(data, (uint)offset, chunkCB.size, chunkList[chunkListIdx], out chunkCB.fo);
#if false
{
byte[] buff2log = new byte[chunkCB.size];
for (int i = 0; i < chunkCB.size; i++)
{
buff2log[i] = data[i + offset];
}
LogUtility.LogUtility.LogBinary("_stored", buff2log);
}
#endif
chunkCB.hint = PackChunking.GetChunkHint(data, (uint)offset, chunkCB.size);
chunkCB.chains = new long[1];
chunkCB.chains[0] = chunkAndChainManager.chainId4Lookup;
chunkCB.ChainsListSize = 1;
// LogUtility.LogUtility.LogFile("****creating new chunk CB " + Convert.ToString(chunkCB.size) + " " + Convert.ToString(chunkList[chunkListIdx]) + " len " + Convert.ToString(PackChunking.chunkToLen(chunkList[chunkListIdx])) + " hint " + Convert.ToString(chunkCB.hint) + " sha1 " + Convert.ToString(chunkCB.sha1), ModuleLogLevel);
ChunksCreated++;
}
else if (!ChainIsPresentInChunkCB(chunkCB, chunkAndChainManager.chainId4Lookup))
{
presentChunks = true;
long[] newChainList = new long[chunkCB.chains.Length + 1];
chunkCB.chains.CopyTo(newChainList, 0);
newChainList[chunkCB.chains.Length] = chunkAndChainManager.chainId4Lookup;
chunkCB.chains = newChainList;
chunkCB.ChainsListSize++;
// LogUtility.LogUtility.LogFile("****updating existing chunk CB " + Convert.ToString(chunkCB.size) + " " + Convert.ToString(chunkList[chunkListIdx]) + " hint " + Convert.ToString(chunkCB.hint) + " sha1 " + Convert.ToString(chunkCB.sha1), ModuleLogLevel);
ChainAdded2ExistingChunk++;
}
else
{
// LogUtility.LogUtility.LogFile("****chain exists in chunk CB " + Convert.ToString(chunkList[chunkListIdx]) + " " + Convert.ToString(PackChunking.chunkToLen(chunkList[chunkListIdx])) + " chain " + Convert.ToString(chainId4Lookup) + " hint " + Convert.ToString(chunkCB.hint) + " sha1 " + Convert.ToString(chunkCB.sha1), ModuleLogLevel);
offset += (int)chunkCB.size;
ChainExistInChunkChainsList++;
continue;
}
offset += (int)chunkCB.size;
GetChunkCBAsByteArray(chunkCB, out buf);
fileManager.AddUpdateChunkCtrlFile(chunkList[chunkListIdx], buf, 0, (uint)buf.Length);
}
if (!GetChain(chunkAndChainManager.chainId4Lookup, out chain4Lookup))
{
LogUtility.LogUtility.LogFile("****cannot get chain!!! " + Convert.ToString(chunkAndChainManager.chainId4Lookup), ModuleLogLevel);
CannotGetChain++;
return(presentChunks);
}
// LogUtility.LogUtility.LogFile("prepare chain, now " + Convert.ToString(chain4Lookup.NumberOfEntries) + " ( " + Convert.ToString(chain4Lookup.chunkIds.Length) + ")" + " will be added " + Convert.ToString(chunkList.Count-savedChunkListIdx), ModuleLogLevel);
long[] newChunkList = new long[chain4Lookup.NumberOfEntries + ((LastChunkId + 1) - savedChunkListIdx)];
chain4Lookup.chunkIds.CopyTo(newChunkList, 0);
idx = (int)chain4Lookup.NumberOfEntries;
for (chunkListIdx = savedChunkListIdx; chunkListIdx <= LastChunkId; chunkListIdx++)
{
#if false
if (ChunkIsPresentInChain(chain4Lookup, chunkList[chunkListIdx]))
{
LogUtility.LogUtility.LogFile("SANITY CHECK: chunk " + Convert.ToString(chunkList[chunkListIdx]) + " len " + Convert.ToString(PackChunking.chunkToLen(chunkList[chunkListIdx])) + " is already in chain", ModuleLogLevel);
return(presentChunks);
}
#endif
newChunkList[idx++] = chunkList[chunkListIdx];
}
chain4Lookup.chunkIds = newChunkList;
chain4Lookup.NumberOfEntries = (uint)newChunkList.Length;
GetChainAsByteArray(chain4Lookup.chunkIds, out buf);
//save on disk
chunkAndChainManager.chainId4Lookup = fileManager.AddUpdateChainFile(buf, chunkAndChainManager.chainId4Lookup);
return(presentChunks);
}