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1205 lines
37 KiB
C++
1205 lines
37 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "UbaCacheServer.h"
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#include "UbaCacheEntry.h"
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#include "UbaCompactTables.h"
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#include "UbaBinaryReaderWriter.h"
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#include "UbaFileAccessor.h"
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#include "UbaNetworkServer.h"
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#include "UbaStorageServer.h"
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//#include <oodle2.h>
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namespace uba
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{
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static constexpr u32 CacheFileVersion = 4;
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static constexpr u32 CacheFileCompatibilityVersion = 3;
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bool IsCaseInsensitive(u64 id) { return (id & (1ull << 32)) == 0; }
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struct CacheServer::ConnectionBucket
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{
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ConnectionBucket(u64 i) : pathTable(CachePathTableMaxSize, CompactPathTable::V1, IsCaseInsensitive(i)), casKeyTable(CacheCasKeyTableMaxSize), id(i) {}
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CompactPathTable pathTable;
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CompactCasKeyTable casKeyTable;
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ReaderWriterLock cacheEntryLookupLock;
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UnorderedMap<CasKey, CacheEntry> cacheEntryLookup;
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u64 id;
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};
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struct CacheServer::Connection
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{
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u32 clientVersion;
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UnorderedMap<u64, ConnectionBucket> buckets;
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};
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struct CacheServer::Bucket
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{
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Bucket(u64 id) : m_pathTable(CachePathTableMaxSize, CompactPathTable::V1, IsCaseInsensitive(id)), m_casKeyTable(CacheCasKeyTableMaxSize) {}
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ReaderWriterLock m_cacheEntryLookupLock;
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UnorderedMap<CasKey, CacheEntries> m_cacheEntryLookup;
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CompactPathTable m_pathTable;
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CompactCasKeyTable m_casKeyTable;
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u64 totalEntryCount = 0;
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u64 totalEntrySize = 0;
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};
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const tchar* ToString(CacheMessageType type)
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{
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switch (type)
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{
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#define UBA_CACHE_MESSAGE(x) case CacheMessageType_##x: return TC("")#x;
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UBA_CACHE_MESSAGES
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#undef UBA_CACHE_MESSAGE
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default:
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return TC("Unknown"); // Should never happen
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}
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}
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CacheServer::CacheServer(LogWriter& writer, const tchar* rootDir, NetworkServer& server, StorageServer& storage)
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: m_logger(writer, TC("UbaCacheServer"))
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, m_server(server)
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, m_storage(storage)
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{
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m_startTime = GetTime();
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m_rootDir.count = GetFullPathNameW(rootDir, m_rootDir.capacity, m_rootDir.data, NULL);
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m_rootDir.Replace('/', PathSeparator).EnsureEndsWithSlash();
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m_server.RegisterService(CacheServiceId,
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[this](const ConnectionInfo& connectionInfo, MessageInfo& messageInfo, BinaryReader& reader, BinaryWriter& writer)
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{
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return HandleMessage(connectionInfo, messageInfo.type, reader, writer);
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},
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[](u8 messageType)
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{
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return ToString(CacheMessageType(messageType));
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}
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);
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m_server.RegisterOnClientDisconnected(CacheServiceId, [this](const Guid& clientUid, u32 clientId)
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{
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OnDisconnected(clientId);
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});
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}
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CacheServer::~CacheServer()
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{
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}
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bool CacheServer::Load()
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{
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u64 startTime = GetTime();
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StringBuffer<> fileName(m_rootDir);
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fileName.EnsureEndsWithSlash().Append(TC("cachedb"));
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FileAccessor file(m_logger, fileName.data);
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if (!file.OpenMemoryRead(0, false))
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{
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m_logger.Detail(TC("No database found. Starting a new one at %s"), fileName.data);
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m_creationTime = GetSystemTimeAsFileTime();
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return true;
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}
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BinaryReader reader(file.GetData(), 0, file.GetSize());
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u32 databaseVersion = reader.ReadU32();
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if (databaseVersion < CacheFileCompatibilityVersion || databaseVersion > CacheFileVersion)
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{
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m_logger.Detail(TC("Can't load database of version %u. Starting a new one at %s"), databaseVersion, fileName.data);
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return true;
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}
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if (databaseVersion == 3)
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m_creationTime = GetSystemTimeAsFileTime() - 1;
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else
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m_creationTime = reader.ReadU64();
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u32 totalPathTableSize = 0;
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u32 totalCasKeyTableSize = 0;
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u64 totalCacheEntryCount = 0;
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u32 bucketCount = reader.ReadU32();
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while (bucketCount--)
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{
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u64 id = reader.ReadU64();
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Bucket& bucket = m_buckets.try_emplace(id, id).first->second;
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u32 pathTableSize = reader.ReadU32();
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if (pathTableSize)
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{
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BinaryReader pathTableReader(reader.GetPositionData(), 0, pathTableSize);
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bucket.m_pathTable.ReadMem(pathTableReader, true);
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reader.Skip(pathTableSize);
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}
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totalPathTableSize += pathTableSize;
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u32 casKeyTableSize = reader.ReadU32();
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if (casKeyTableSize)
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{
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BinaryReader casKeyTableReader(reader.GetPositionData(), 0, casKeyTableSize);
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bucket.m_casKeyTable.ReadMem(casKeyTableReader, true);
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reader.Skip(casKeyTableSize);
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}
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totalCasKeyTableSize += casKeyTableSize;
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u32 entryLookupCount = reader.ReadU32();
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bucket.m_cacheEntryLookup.reserve(entryLookupCount);
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while (entryLookupCount--)
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{
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auto insres = bucket.m_cacheEntryLookup.try_emplace(reader.ReadCasKey());
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UBA_ASSERT(insres.second);
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auto& cacheEntries = insres.first->second;
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cacheEntries.Read(m_logger, reader, databaseVersion);
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totalCacheEntryCount += cacheEntries.entries.size();
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}
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}
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u64 duration = GetTime() - startTime;
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m_logger.Detail(TC("Database loaded from %s in %s (%llu bucket(s) containing %s paths, %s keys, %llu cache entries)"), fileName.data, TimeToText(duration).str, m_buckets.size(), BytesToText(totalPathTableSize).str, BytesToText(totalCasKeyTableSize).str, totalCacheEntryCount);
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return true;
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}
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bool CacheServer::Save()
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{
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if (m_addsSinceMaintenance == 0)
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return true;
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SCOPED_WRITE_LOCK(m_connectionsLock, lock);
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return SaveNoLock();
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}
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bool CacheServer::SaveNoLock()
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{
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StringBuffer<MaxPath> fileName(m_rootDir);
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fileName.EnsureEndsWithSlash().Append(TC("cachedb"));
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StringBuffer<MaxPath> tempFileName;
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tempFileName.Append(fileName).Append(TC(".tmp"));
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FileAccessor file(m_logger, tempFileName.data);
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if (!file.CreateWrite())
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return false;
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constexpr u64 tempBufferSize = 1024*1024;
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u8* tempBuffer = (u8*)malloc(tempBufferSize);
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auto g = MakeGuard([tempBuffer](){ free(tempBuffer); });
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u64 tempBufferPos = 0;
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bool success = true;
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auto WriteBytes = [&](const void* data, u64 size)
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{
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u8* readPos = (u8*)data;
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u64 left = size;
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while (left)
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{
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if (tempBufferPos != tempBufferSize)
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{
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u64 toWrite = Min(tempBufferSize - tempBufferPos, left);
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memcpy(tempBuffer+tempBufferPos, readPos, toWrite);
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tempBufferPos += toWrite;
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left -= toWrite;
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readPos += toWrite;
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}
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else
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{
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success &= file.Write(tempBuffer, tempBufferPos);
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tempBufferPos = 0;
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}
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}
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};
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auto Write = [&](auto v) { WriteBytes(&v, sizeof(v)); };
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Write(CacheFileVersion);
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Write(m_creationTime);
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Write(u32(m_buckets.size()));
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Vector<u8> temp;
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for (auto& kv : m_buckets)
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{
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Bucket& bucket = kv.second;
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Write(kv.first);
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u32 pathTableSize = bucket.m_pathTable.GetSize();
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Write(pathTableSize);
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WriteBytes(bucket.m_pathTable.GetMemory(), pathTableSize);
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u32 casKeyTableSize = bucket.m_casKeyTable.GetSize();
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Write(casKeyTableSize);
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WriteBytes(bucket.m_casKeyTable.GetMemory(), casKeyTableSize);
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u32 entryLookupCount = u32(bucket.m_cacheEntryLookup.size());
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Write(entryLookupCount);
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for (auto& kv2 : bucket.m_cacheEntryLookup)
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{
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Write(kv2.first);
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#if UBA_USE_OLD
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if (CacheFileVersion == 3)
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{
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u32 cacheEntryCount = u32(kv2.second.entries.size());
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Write(cacheEntryCount);
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for (CacheEntry& entry : kv2.second.entries)
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{
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WriteBytes(&entry.creationTime, sizeof(entry.creationTime));
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u32 inputSize = u32(entry.inputCasKeyOffsets.size());
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Write(inputSize);
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WriteBytes(entry.inputCasKeyOffsets.data(), inputSize);
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u32 outputSize = u32(entry.outputCasKeyOffsets.size());
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Write(outputSize);
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WriteBytes(entry.outputCasKeyOffsets.data(), outputSize);
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}
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}
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else
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#else
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{
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temp.resize(kv2.second.GetTotalSize(true));
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BinaryWriter writer(temp.data(), 0, temp.size());
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kv2.second.Write(writer, CacheNetworkVersion, true);
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UBA_ASSERT(writer.GetPosition() == temp.size());
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WriteBytes(temp.data(), temp.size());
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}
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#endif
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}
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}
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success &= file.Write(tempBuffer, tempBufferPos);
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if (!success)
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return false;
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if (!file.Close())
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return false;
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if (!MoveFileExW(tempFileName.data, fileName.data, MOVEFILE_REPLACE_EXISTING))
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return m_logger.Error(TC("Can't move file from %s to %s (%s)"), tempFileName.data, fileName.data, LastErrorToText().data);
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return true;
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}
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bool CacheServer::RunMaintenance(bool force, const Function<bool()>& shouldExit)
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{
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if (m_addsSinceMaintenance == 0 && !force)
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return true;
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SCOPED_WRITE_LOCK(m_connectionsLock, lock2);
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if (!m_connections.empty())
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return true;
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m_isRunningMaintenance = true;
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lock2.Leave();
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auto g = MakeGuard([&]()
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{
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SCOPED_WRITE_LOCK(m_connectionsLock, lock2);
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m_isRunningMaintenance = false;
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});
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bool forceAllSteps = true;
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m_logger.Info(TC("Maintenance started after %u added cache entries"), m_addsSinceMaintenance.load());
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u64 startTime = GetTime();
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bool entriesAdded = m_addsSinceMaintenance != 0;
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m_addsSinceMaintenance = 0;
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Set<CasKey> deletedCasFiles;
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m_storage.HandleOverflow(&deletedCasFiles);
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u64 deletedCasCount = deletedCasFiles.size();
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struct CasFileInfo { u64 size; u64 refCount; };
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Map<CasKey, CasFileInfo> existingCas;
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u64 totalCasSize = 0;
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{
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u64 traverseStartTime = GetTime();
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m_storage.TraverseAllCasFiles([&](const CasKey& casKey, u64 size) { totalCasSize += size; existingCas.try_emplace(casKey, CasFileInfo{size, 0ull}); });
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m_logger.Detail(TC(" Found %llu cas files (%s)"), existingCas.size(), TimeToText(GetTime() - traverseStartTime).str);
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}
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u64 totalCasCount = existingCas.size() + deletedCasCount;
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if (shouldExit())
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return true;
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u64 now = GetSystemTimeAsFileTime();
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u64 oldest = now;
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u32 workerCount = m_server.GetWorkerCount();
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u32 workerCountToUse = workerCount > 0 ? workerCount - 1 : 0;
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Atomic<u64> deleteEntryCount;
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u64 deleteCacheEntriesStartTime = GetTime();
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do
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{
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oldest = now;
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ReaderWriterLock existingCasLock;
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m_server.ParallelFor(workerCountToUse, m_buckets, [&](auto& it)
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{
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Vector<u64*> touchedCas;
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Bucket& bucket = it->second;
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bucket.totalEntryCount = 0;
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bucket.totalEntrySize = 0;
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for (auto li=bucket.m_cacheEntryLookup.begin(), le=bucket.m_cacheEntryLookup.end(); li!=le;)
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{
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CacheEntries& entries = li->second;
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// There is currently no idea saving more than 256kb worth of entries per lookup key (because that is what fetch max returns).. so let's wipe out
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// all the entries that overflow that number
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u64 capacityLeft = SendMaxSize - 32 - entries.GetSharedSize();
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for (auto i=entries.entries.begin(), e=entries.entries.end(); i!=e;)
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{
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auto& entry = *i;
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auto& outputs = entry.outputCasKeyOffsets;
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bool deleteEntry = false;
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u64 neededSize = entries.GetEntrySize(entry, false);
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if (neededSize > capacityLeft)
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{
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deleteEntry = true;
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capacityLeft = 0;
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}
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else
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{
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// Traverse outputs and check if cas files exists for each output, if not, delete entry.
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touchedCas.clear();
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BinaryReader reader2(outputs.data(), 0, outputs.size());
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while (reader2.GetLeft())
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{
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u64 offset = reader2.Read7BitEncoded();
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CasKey casKey;
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bucket.m_casKeyTable.GetKey(casKey, offset);
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UBA_ASSERT(IsCompressed(casKey));
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auto findIt = existingCas.find(casKey);
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if (findIt == existingCas.end())
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deleteEntry = true;
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else
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touchedCas.push_back(&findIt->second.refCount);
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}
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}
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// This is an attempt at removing entries that has inputs that depends on other entries outputs.
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// and that there is no point keeping them if the other entry is removed
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// Example would be that there is no idea keeping entries that uses a pch if the entry producing the pch is gone
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#if 0
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// Check if there are keys that use removed caskey as input and delete those too
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auto& inputs = entry.inputCasKeyOffsets;
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if (!deleteEntry && !deletedCasFiles.empty())
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{
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BinaryReader reader2(inputs.data(), 0, inputs.size());
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while (reader2.GetLeft())
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{
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u64 offset = reader2.Read7BitEncoded();
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CasKey casKey;
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bucket.m_casKeyTable.GetKey(casKey, offset);
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if (deletedCasFiles.find(casKey) != deletedCasFiles.end())
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{
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deleteEntry = true;
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break;
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}
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}
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}
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#endif
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// Remove entry from entries list and skip increasing ref count of cas files
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if (deleteEntry)
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{
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++deleteEntryCount;
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i = entries.entries.erase(i);
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e = entries.entries.end();
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continue;
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}
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++bucket.totalEntryCount;
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capacityLeft -= neededSize;
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SCOPED_WRITE_LOCK(existingCasLock, l);
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if (!oldest || entry.creationTime < oldest)
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oldest = entry.creationTime;
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for (u64* v : touchedCas)
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++(*v);
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l.Leave();
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++i;
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}
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if (!entries.entries.empty())
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{
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//entries.UpdateEntries(); // Not needed..
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bucket.totalEntrySize += entries.GetTotalSize(false);
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++li;
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continue;
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}
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li = bucket.m_cacheEntryLookup.erase(li);
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le = bucket.m_cacheEntryLookup.end();
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}
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});
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// Reset deleted cas files and update it again..
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deletedCasFiles.clear();
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for (auto i=existingCas.begin(), e=existingCas.end(); i!=e;)
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{
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if (i->second.refCount != 0)
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{
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i->second.refCount = 0;
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++i;
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continue;
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}
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deletedCasFiles.insert(i->first);
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++deletedCasCount;
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totalCasSize -= i->second.size;
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i = existingCas.erase(i);
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e = existingCas.end();
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}
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for (auto& casKey : deletedCasFiles)
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m_storage.DropCasFile(casKey, true, TC(""));
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}
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while (!deletedCasFiles.empty()); // if cas files are deleted we need to do another loop and check cache entry inputs to see if files were inputs
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m_logger.Detail(TC(" Deleted %llu cas files and %llu cache entries (%s)"), deletedCasCount, deleteEntryCount.load(), TimeToText(GetTime() - deleteCacheEntriesStartTime).str);
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if (shouldExit())
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return true;
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Atomic<u32> bucketCounter;
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m_server.ParallelFor(workerCountToUse, m_buckets, [&](auto& it)
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{
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u64 bucketStartTime = GetTime();
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Bucket& bucket = it->second;
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u32 bucketIndex = bucketCounter++;
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if (!deleteEntryCount && !forceAllSteps)
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{
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m_logger.Detail(TC(" Bucket %u skipped updating. No entries deleted"), bucketIndex);
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return;
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}
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MemoryBlock memoryBlock(128*1024*1024);
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GrowingNoLockUnorderedSet<u32> usedCasKeyOffsets(&memoryBlock);
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usedCasKeyOffsets.reserve(bucket.m_casKeyTable.GetKeyCount());
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u64 collectUsedCasKeysStart = GetTime();
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// Collect all caskeys that are used by cache entries.
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for (auto& kv2 : bucket.m_cacheEntryLookup)
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{
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auto collectUsedCasKeyOffsets = [&](const Vector<u8>& offsets)
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{
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BinaryReader reader2(offsets.data(), 0, offsets.size());
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while (reader2.GetLeft())
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usedCasKeyOffsets.insert(u32(reader2.Read7BitEncoded()));
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};
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collectUsedCasKeyOffsets(kv2.second.sharedInputCasKeyOffsets);
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for (auto& entry : kv2.second.entries)
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{
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collectUsedCasKeyOffsets(entry.extraInputCasKeyOffsets);
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collectUsedCasKeyOffsets(entry.outputCasKeyOffsets);
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}
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}
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m_logger.Detail(TC(" Bucket %u Collected %llu used caskeys. (%s)"), bucketIndex, usedCasKeyOffsets.size(), TimeToText(GetTime() - collectUsedCasKeysStart).str);
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u64 recreatePathTableStart = GetTime();
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// Traverse all caskeys in caskey table and figure out which ones we can delete
|
|
GrowingNoLockUnorderedSet<u32> usedPathOffsets(&memoryBlock);
|
|
usedPathOffsets.reserve(usedCasKeyOffsets.size());
|
|
|
|
for (u32 casKeyOffset : usedCasKeyOffsets)
|
|
{
|
|
BinaryReader reader2(bucket.m_casKeyTable.GetMemory(), casKeyOffset, bucket.m_casKeyTable.GetSize());
|
|
u32 pathOffset = u32(reader2.Read7BitEncoded());
|
|
usedPathOffsets.insert(pathOffset);
|
|
}
|
|
|
|
// Build new path table based on used offsets
|
|
GrowingNoLockUnorderedMap<u32, u32> oldToNewPathOffset(&memoryBlock);
|
|
u32 oldSize = bucket.m_pathTable.GetSize();
|
|
{
|
|
CompactPathTable newPathTable(CachePathTableMaxSize, CompactPathTable::V1, bucket.m_pathTable.GetPathCount(), bucket.m_pathTable.GetSegmentCount());
|
|
oldToNewPathOffset.reserve(usedPathOffsets.size());
|
|
|
|
for (u32 pathOffset : usedPathOffsets)
|
|
{
|
|
StringBuffer<> temp;
|
|
bucket.m_pathTable.GetString(temp, pathOffset);
|
|
u32 newOffset = newPathTable.AddNoLock(temp.data, temp.count);
|
|
|
|
#if 0
|
|
StringBuffer<> test;
|
|
newPathTable.GetString(test, newOffset);
|
|
UBA_ASSERT(test.Equals(temp.data));
|
|
#endif
|
|
|
|
auto res = oldToNewPathOffset.try_emplace(pathOffset, newOffset);
|
|
UBA_ASSERT(res.second);(void)res;
|
|
}
|
|
bucket.m_pathTable.Swap(newPathTable);
|
|
}
|
|
m_logger.Detail(TC(" Bucket %u Recreated path table. %s -> %s (%s)"), bucketIndex, BytesToText(oldSize).str, BytesToText(bucket.m_pathTable.GetSize()).str, TimeToText(GetTime() - recreatePathTableStart).str);
|
|
|
|
|
|
// Build new caskey table based on used offsets
|
|
u64 recreateCasKeyTableStart = GetTime();
|
|
GrowingNoLockUnorderedMap<u32, u32> oldToNewCasKeyOffset(&memoryBlock);
|
|
oldSize = bucket.m_casKeyTable.GetSize();
|
|
{
|
|
oldToNewCasKeyOffset.reserve(usedCasKeyOffsets.size());
|
|
CompactCasKeyTable newCasKeyTable(CacheCasKeyTableMaxSize, usedCasKeyOffsets.size());
|
|
for (u32 casKeyOffset : usedCasKeyOffsets)
|
|
{
|
|
BinaryReader reader2(bucket.m_casKeyTable.GetMemory(), casKeyOffset, bucket.m_casKeyTable.GetSize());
|
|
u32 oldPathOffset = u32(reader2.Read7BitEncoded());
|
|
CasKey casKey = reader2.ReadCasKey();
|
|
auto findIt = oldToNewPathOffset.find(oldPathOffset);
|
|
UBA_ASSERT(findIt != oldToNewPathOffset.end());
|
|
u32 newCasKeyOffset = newCasKeyTable.Add(casKey, findIt->second);
|
|
if (casKeyOffset == newCasKeyOffset)
|
|
continue;
|
|
auto res = oldToNewCasKeyOffset.try_emplace(casKeyOffset, newCasKeyOffset);
|
|
UBA_ASSERT(res.second);(void)res;
|
|
}
|
|
bucket.m_casKeyTable.Swap(newCasKeyTable);
|
|
}
|
|
m_logger.Detail(TC(" Bucket %u Recreated caskey table. %s -> %s (%s)"), bucketIndex, BytesToText(oldSize).str, BytesToText(bucket.m_casKeyTable.GetSize()).str, TimeToText(GetTime() - recreateCasKeyTableStart).str);
|
|
|
|
|
|
if (!oldToNewCasKeyOffset.empty())
|
|
{
|
|
// Update all casKeyOffsets
|
|
u64 updateEntriesStart = GetTime();
|
|
|
|
m_server.ParallelFor(workerCountToUse, bucket.m_cacheEntryLookup, [&](auto& it)
|
|
{
|
|
it->second.UpdateEntries(m_logger, oldToNewCasKeyOffset);
|
|
});
|
|
|
|
#if 0
|
|
u8* mem = bucket.m_pathTable.GetMemory();
|
|
u64 memLeft = bucket.m_pathTable.GetSize();
|
|
while (memLeft)
|
|
{
|
|
u8 buffer[256*1024];
|
|
auto compressor = OodleLZ_Compressor_Kraken;
|
|
auto compressionLevel = OodleLZ_CompressionLevel_SuperFast;
|
|
u64 toCompress = Min(memLeft, u64(256*1024 - 128));
|
|
auto compressedBlockSize = OodleLZ_Compress(compressor, mem, (OO_SINTa)toCompress, buffer, compressionLevel);
|
|
(void)compressedBlockSize;
|
|
memLeft -= toCompress;
|
|
}
|
|
#endif
|
|
|
|
|
|
m_logger.Detail(TC(" Bucket %u Updated cache entries with new tables (%s)"), bucketIndex, TimeToText(GetTime() - updateEntriesStart).str);
|
|
}
|
|
|
|
m_logger.Info(TC(" Bucket %u Done (%s). CacheEntries: %llu (%s) PathTable: %s CasTable: %s"), bucketIndex, TimeToText(GetTime() - bucketStartTime).str, bucket.totalEntryCount, BytesToText(bucket.totalEntrySize).str, BytesToText(bucket.m_pathTable.GetSize()).str, BytesToText(bucket.m_casKeyTable.GetSize()).str);
|
|
});
|
|
|
|
if (entriesAdded || deletedCasCount || deleteEntryCount || forceAllSteps)
|
|
{
|
|
u64 saveStart = GetTime();
|
|
m_storage.SaveCasTable(false, false);
|
|
SaveNoLock();
|
|
m_logger.Detail(TC(" Saved to disk (%s)"), TimeToText(GetTime() - saveStart).str);
|
|
}
|
|
|
|
u64 oldestTime = MsToTime(GetFileTimeAsSeconds(now - oldest)*1000);
|
|
u64 duration = GetTime() - startTime;
|
|
m_logger.Info(TC("Maintenance done! (%s) CasFiles: %llu (%s) OldestEntry: %s"), TimeToText(duration).str, totalCasCount - deletedCasCount, BytesToText(totalCasSize).str, TimeToText(oldestTime, true).str);
|
|
|
|
m_longestMaintenance = Max(m_longestMaintenance, duration);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CacheServer::ShouldShutdown()
|
|
{
|
|
if (!m_shutdownRequested)
|
|
return false;
|
|
SCOPED_READ_LOCK(m_connectionsLock, lock2);
|
|
if (!m_connections.empty() || m_addsSinceMaintenance)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
void CacheServer::OnDisconnected(u32 clientId)
|
|
{
|
|
SCOPED_WRITE_LOCK(m_connectionsLock, lock);
|
|
m_connections.erase(clientId);
|
|
lock.Leave();
|
|
}
|
|
|
|
CacheServer::ConnectionBucket& CacheServer::GetConnectionBucket(const ConnectionInfo& connectionInfo, BinaryReader& reader)
|
|
{
|
|
u64 id = reader.Read7BitEncoded();
|
|
SCOPED_WRITE_LOCK(m_connectionsLock, lock);
|
|
auto& connection = m_connections[connectionInfo.GetId()];
|
|
return connection.buckets.try_emplace(id, id).first->second;
|
|
}
|
|
|
|
CacheServer::Bucket& CacheServer::GetBucket(BinaryReader& reader)
|
|
{
|
|
u64 id = reader.Read7BitEncoded();
|
|
SCOPED_WRITE_LOCK(m_bucketsLock, bucketsLock);
|
|
return m_buckets.try_emplace(id, id).first->second;
|
|
|
|
}
|
|
|
|
bool CacheServer::HandleMessage(const ConnectionInfo& connectionInfo, u8 messageType, BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
if (messageType != CacheMessageType_Connect && m_isRunningMaintenance)
|
|
return m_logger.Error(TC("Can't handle network message %s while running maintenance mode"), ToString(CacheMessageType(messageType)));
|
|
|
|
switch (messageType)
|
|
{
|
|
case CacheMessageType_Connect:
|
|
{
|
|
u32 clientVersion = reader.ReadU32();
|
|
if (clientVersion < 3 || clientVersion > CacheNetworkVersion)
|
|
return m_logger.Error(TC("Different network versions. Client: %u, Server: %u. Disconnecting"), clientVersion, CacheNetworkVersion);
|
|
|
|
SCOPED_WRITE_LOCK(m_connectionsLock, lock);
|
|
if (m_isRunningMaintenance)
|
|
{
|
|
writer.WriteBool(false);
|
|
writer.WriteString(TC("Running maintenance..."));
|
|
}
|
|
|
|
writer.WriteBool(true);
|
|
auto insres = m_connections.try_emplace(connectionInfo.GetId());
|
|
auto& connection = insres.first->second;
|
|
connection.clientVersion = clientVersion;
|
|
return true;
|
|
}
|
|
case CacheMessageType_StorePathTable:
|
|
{
|
|
GetConnectionBucket(connectionInfo, reader).pathTable.ReadMem(reader, false);
|
|
return true;
|
|
}
|
|
case CacheMessageType_StoreCasTable:
|
|
{
|
|
GetConnectionBucket(connectionInfo, reader).casKeyTable.ReadMem(reader, false);
|
|
return true;
|
|
}
|
|
case CacheMessageType_StoreEntry:
|
|
{
|
|
auto& bucket = GetConnectionBucket(connectionInfo, reader);
|
|
return HandleStoreEntry(bucket, reader, writer);
|
|
}
|
|
case CacheMessageType_StoreEntryDone:
|
|
{
|
|
auto& connectionBucket = GetConnectionBucket(connectionInfo, reader);
|
|
CasKey cmdKey = reader.ReadCasKey();
|
|
|
|
SCOPED_WRITE_LOCK(connectionBucket.cacheEntryLookupLock, lock2);
|
|
auto findIt = connectionBucket.cacheEntryLookup.find(cmdKey);
|
|
if (findIt != connectionBucket.cacheEntryLookup.end())
|
|
{
|
|
u64 id = connectionBucket.id;
|
|
SCOPED_WRITE_LOCK(m_bucketsLock, bucketsLock);
|
|
Bucket& bucket = m_buckets.try_emplace(id, id).first->second;
|
|
bucketsLock.Leave();
|
|
|
|
SCOPED_WRITE_LOCK(bucket.m_cacheEntryLookupLock, lock3);
|
|
auto insres = bucket.m_cacheEntryLookup.try_emplace(cmdKey);
|
|
auto& cacheEntries = insres.first->second;
|
|
lock2.Leave();
|
|
|
|
SCOPED_WRITE_LOCK(cacheEntries.lock, lock4);
|
|
cacheEntries.entries.emplace_front(std::move(findIt->second));
|
|
}
|
|
return true;
|
|
}
|
|
case CacheMessageType_FetchPathTable:
|
|
return HandleFetchPathTable(reader, writer);
|
|
|
|
case CacheMessageType_FetchCasTable:
|
|
return HandleFetchCasTable(reader, writer);
|
|
|
|
case CacheMessageType_FetchEntries:
|
|
{
|
|
SCOPED_READ_LOCK(m_connectionsLock, lock);
|
|
u32 clientVersion = m_connections[connectionInfo.GetId()].clientVersion;
|
|
lock.Leave();
|
|
return HandleFetchEntries(reader, writer, clientVersion);
|
|
}
|
|
case CacheMessageType_ExecuteCommand:
|
|
return HandleExecuteCommand(reader, writer);
|
|
|
|
case CacheMessageType_ReportUsedEntry:
|
|
return HandleReportUsedEntry(reader, writer);
|
|
|
|
case CacheMessageType_RequestShutdown:
|
|
{
|
|
TString reason = reader.ReadString();
|
|
m_logger.Info(TC("Shutdown requested. Reason: %s"), reason.empty() ? TC("Unknown") : reason.c_str());
|
|
m_shutdownRequested = true;
|
|
writer.WriteBool(true);
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool CacheServer::HandleStoreEntry(ConnectionBucket& connectionBucket, BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
CasKey cmdKey = reader.ReadCasKey();
|
|
|
|
u64 outputCount = reader.Read7BitEncoded();
|
|
u64 index = 0;
|
|
|
|
Set<u32> inputs;
|
|
u64 bytesForInput = 0;
|
|
|
|
u64 outputStartOffset = reader.GetPosition();
|
|
u64 id = connectionBucket.id;
|
|
SCOPED_WRITE_LOCK(m_bucketsLock, bucketsLock);
|
|
Bucket& bucket = m_buckets.try_emplace(id, id).first->second;
|
|
bucketsLock.Leave();
|
|
|
|
while (reader.GetLeft())
|
|
{
|
|
u32 offset = u32(reader.Read7BitEncoded());
|
|
bool isInput = index++ >= outputCount;
|
|
if (!isInput)
|
|
continue;
|
|
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
connectionBucket.casKeyTable.GetPathAndKey(path, casKey, connectionBucket.pathTable, offset);
|
|
UBA_ASSERT(path.count);
|
|
|
|
u32 pathOffset = bucket.m_pathTable.Add(path.data, path.count);
|
|
|
|
#if 0
|
|
StringBuffer<> test;
|
|
bucket.m_pathTable.GetString(test, pathOffset);
|
|
UBA_ASSERT(test.Equals(path.data));
|
|
#endif
|
|
|
|
u32 casKeyOffset = bucket.m_casKeyTable.Add(casKey, pathOffset);
|
|
auto insres = inputs.insert(casKeyOffset);
|
|
if (!insres.second)
|
|
{
|
|
m_logger.Warning(TC("Input file %s exists more than once in cache entry"), path.data);
|
|
continue;
|
|
}
|
|
bytesForInput += Get7BitEncodedCount(casKeyOffset);
|
|
|
|
//m_logger.Info(TC("%s - %s"), path.data, CasKeyString(casKey).str);
|
|
}
|
|
|
|
Vector<u8> inputCasKeyOffsets;
|
|
{
|
|
inputCasKeyOffsets.resize(bytesForInput);
|
|
BinaryWriter w2(inputCasKeyOffsets.data(), 0, inputCasKeyOffsets.size());
|
|
for (u32 input : inputs)
|
|
w2.Write7BitEncoded(input);
|
|
}
|
|
|
|
SCOPED_WRITE_LOCK(bucket.m_cacheEntryLookupLock, lock);
|
|
auto insres = bucket.m_cacheEntryLookup.try_emplace(cmdKey);
|
|
auto& cacheEntries = insres.first->second;
|
|
lock.Leave();
|
|
|
|
SCOPED_WRITE_LOCK(cacheEntries.lock, lock2);
|
|
|
|
|
|
// Create entry based on existing entry
|
|
CacheEntry newEntry;
|
|
cacheEntries.BuildInputs(newEntry, inputs);
|
|
|
|
List<CacheEntry>::iterator matchingEntry = cacheEntries.entries.end();
|
|
for (auto i=cacheEntries.entries.begin(), e=cacheEntries.entries.end(); i!=e; ++i)
|
|
{
|
|
if (i->sharedInputCasKeyOffsetRanges != newEntry.sharedInputCasKeyOffsetRanges || i->extraInputCasKeyOffsets != newEntry.extraInputCasKeyOffsets)
|
|
continue;
|
|
matchingEntry = i;
|
|
break;
|
|
}
|
|
|
|
#if UBA_USE_OLD
|
|
List<CacheEntry>::iterator matchingEntry2 = cacheEntries.entries.end();
|
|
for (auto i=cacheEntries.entries.begin(), e=cacheEntries.entries.end(); i!=e; ++i)
|
|
{
|
|
if (i->inputCasKeyOffsets != inputCasKeyOffsets)
|
|
continue;
|
|
matchingEntry2 = i;
|
|
break;
|
|
}
|
|
if (matchingEntry2 != matchingEntry)
|
|
m_logger.Warning(L"CODE MISMATCH!!!");
|
|
#endif
|
|
|
|
|
|
// Already exists
|
|
if (matchingEntry != cacheEntries.entries.end())
|
|
{
|
|
bool shouldOverwrite = false;
|
|
Map<TString, CasKey> existing;
|
|
|
|
BinaryReader r2(matchingEntry->outputCasKeyOffsets.data(), 0, matchingEntry->outputCasKeyOffsets.size());
|
|
while (r2.GetLeft())
|
|
{
|
|
u32 existingOffset = u32(r2.Read7BitEncoded());
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
bucket.m_casKeyTable.GetPathAndKey(path, casKey, bucket.m_pathTable, existingOffset);
|
|
existing.try_emplace(path.data, casKey);
|
|
}
|
|
|
|
reader.SetPosition(outputStartOffset);
|
|
u64 left = outputCount;
|
|
while (left--)
|
|
{
|
|
u32 outputOffset = u32(reader.Read7BitEncoded());
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
connectionBucket.casKeyTable.GetPathAndKey(path, casKey, connectionBucket.pathTable, outputOffset);
|
|
|
|
auto findIt = existing.find(path.data);
|
|
if (findIt == existing.end())
|
|
{
|
|
m_logger.Warning(TC("Existing cache entry matches input but does not match output (output file %s did not exist in existing cache entry)"), path.data);
|
|
cacheEntries.entries.erase(matchingEntry);
|
|
shouldOverwrite = true;
|
|
break;
|
|
}
|
|
if (findIt->second != casKey)
|
|
{
|
|
//m_logger.Warning(TC("Existing cache entry matches input but does not match output (%s has different caskey)"), path.data);
|
|
cacheEntries.entries.erase(matchingEntry);
|
|
shouldOverwrite = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!shouldOverwrite)
|
|
return true;
|
|
}
|
|
|
|
#if UBA_USE_OLD
|
|
// Add new entry
|
|
newEntry.inputCasKeyOffsets.swap(inputCasKeyOffsets);
|
|
#endif
|
|
|
|
Set<u32> outputs;
|
|
u64 bytesForOutput = 0;
|
|
|
|
bool hasAllContent = true;
|
|
reader.SetPosition(outputStartOffset);
|
|
u64 left = outputCount;
|
|
while (left--)
|
|
{
|
|
u32 outputOffset = u32(reader.Read7BitEncoded());
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
connectionBucket.casKeyTable.GetPathAndKey(path, casKey, connectionBucket.pathTable, outputOffset);
|
|
u32 pathOffset = bucket.m_pathTable.Add(path.data, path.count);
|
|
|
|
#if 0
|
|
StringBuffer<> test;
|
|
bucket.m_pathTable.GetString(test, pathOffset);
|
|
UBA_ASSERT(test.Equals(path.data));
|
|
#endif
|
|
|
|
u32 casKeyOffset = bucket.m_casKeyTable.Add(casKey, pathOffset);
|
|
outputs.insert(casKeyOffset);
|
|
bytesForOutput += Get7BitEncodedCount(casKeyOffset);
|
|
|
|
if (!m_storage.EnsureCasFile(casKey, nullptr))
|
|
{
|
|
writer.Write7BitEncoded(outputOffset);
|
|
hasAllContent = false;
|
|
}
|
|
}
|
|
|
|
newEntry.outputCasKeyOffsets.resize(bytesForOutput);
|
|
BinaryWriter w2(newEntry.outputCasKeyOffsets.data(), 0, newEntry.outputCasKeyOffsets.size());
|
|
for (u32 output : outputs)
|
|
w2.Write7BitEncoded(output);
|
|
|
|
|
|
newEntry.creationTime = GetSystemTimeAsFileTime() - m_creationTime;
|
|
newEntry.id = cacheEntries.idCounter++;
|
|
|
|
// If cache server has all content we can put the new cache entry directly in the lookup.. otherwise we'll have to wait until client has uploaded content
|
|
if (hasAllContent)
|
|
{
|
|
cacheEntries.entries.emplace_front(std::move(newEntry));
|
|
}
|
|
else
|
|
{
|
|
SCOPED_WRITE_LOCK(connectionBucket.cacheEntryLookupLock, lock3);
|
|
bool res = connectionBucket.cacheEntryLookup.try_emplace(cmdKey, std::move(newEntry)).second;
|
|
UBA_ASSERT(res);(void)res;
|
|
}
|
|
|
|
//m_logger.Info(TC("Added new cache entry (%u inputs and %u outputs)"), u32(inputs.size()), outputCount);
|
|
|
|
++m_addsSinceMaintenance;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CacheServer::HandleFetchPathTable(BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
Bucket& bucket = GetBucket(reader);
|
|
u32 haveSize = reader.ReadU32();
|
|
u32 size = bucket.m_pathTable.GetSize();
|
|
writer.WriteU32(size);
|
|
u32 toSend = Min(u32(writer.GetCapacityLeft()), size - haveSize);
|
|
writer.WriteBytes(bucket.m_pathTable.GetMemory() + haveSize, toSend);
|
|
return true;
|
|
}
|
|
|
|
bool CacheServer::HandleFetchCasTable(BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
Bucket& bucket = GetBucket(reader);
|
|
u32 haveSize = reader.ReadU32();
|
|
u32 size = bucket.m_casKeyTable.GetSize();
|
|
writer.WriteU32(size);
|
|
u32 toSend = Min(u32(writer.GetCapacityLeft()), size - haveSize);
|
|
writer.WriteBytes(bucket.m_casKeyTable.GetMemory() + haveSize, toSend);
|
|
return true;
|
|
}
|
|
|
|
bool CacheServer::HandleFetchEntries(BinaryReader& reader, BinaryWriter& writer, u32 clientVersion)
|
|
{
|
|
Bucket& bucket = GetBucket(reader);
|
|
CasKey cmdKey = reader.ReadCasKey();
|
|
|
|
SCOPED_READ_LOCK(bucket.m_cacheEntryLookupLock, lock);
|
|
auto findIt = bucket.m_cacheEntryLookup.find(cmdKey);
|
|
if (findIt == bucket.m_cacheEntryLookup.end())
|
|
{
|
|
writer.WriteU16(0);
|
|
return true;
|
|
}
|
|
auto& cacheEntries = findIt->second;
|
|
lock.Leave();
|
|
|
|
SCOPED_READ_LOCK(cacheEntries.lock, lock2);
|
|
return cacheEntries.Write(writer, clientVersion, false);
|
|
}
|
|
|
|
bool CacheServer::HandleReportUsedEntry(BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
Bucket& bucket = GetBucket(reader);
|
|
CasKey cmdKey = reader.ReadCasKey();
|
|
u64 entryId = reader.Read7BitEncoded();
|
|
|
|
SCOPED_READ_LOCK(bucket.m_cacheEntryLookupLock, lock);
|
|
auto findIt = bucket.m_cacheEntryLookup.find(cmdKey);
|
|
if (findIt == bucket.m_cacheEntryLookup.end())
|
|
return true;
|
|
auto& cacheEntries = findIt->second;
|
|
lock.Leave();
|
|
|
|
SCOPED_WRITE_LOCK(cacheEntries.lock, lock2);
|
|
for (auto& entry : cacheEntries.entries)
|
|
{
|
|
if (entryId != entry.id)
|
|
continue;
|
|
entry.lastUsedTime = GetSystemTimeAsFileTime() - m_creationTime;
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool CacheServer::HandleExecuteCommand(BinaryReader& reader, BinaryWriter& writer)
|
|
{
|
|
StringBuffer<> command;
|
|
reader.ReadString(command);
|
|
|
|
StringBuffer<> additionalInfo;
|
|
reader.ReadString(additionalInfo);
|
|
|
|
StringBuffer<> tempFile(m_storage.GetTempPath());
|
|
Guid guid;
|
|
CreateGuid(guid);
|
|
tempFile.Append(GuidToString(guid).str);
|
|
|
|
FileAccessor file(m_logger, tempFile.data);
|
|
if (!file.CreateWrite())
|
|
return false;
|
|
|
|
bool writeSuccess = true;
|
|
auto Write = [&](const void* data, u64 size) { writeSuccess &= file.Write(data, size); };
|
|
|
|
u8 bom[] = {0xEF,0xBB,0xBF};
|
|
Write(bom, sizeof(bom));
|
|
|
|
auto writeLine = [&](const tchar* text)
|
|
{
|
|
u8 buffer[1024];
|
|
BinaryWriter w(buffer, 0, sizeof(buffer));
|
|
w.WriteUtf8String(text, TStrlen(text));
|
|
w.WriteUtf8String(TC("\n"), 1);
|
|
Write(buffer, w.GetPosition());
|
|
};
|
|
|
|
StringBuffer<> line;
|
|
|
|
if (command.Equals(TC("content")))
|
|
{
|
|
writeLine(TC("UbaCache server summary"));
|
|
|
|
StringBufferBase& filterString = additionalInfo;
|
|
|
|
u64 now = GetSystemTimeAsFileTime();
|
|
|
|
Vector<u8> temp;
|
|
|
|
SCOPED_READ_LOCK(m_bucketsLock, bucketsLock);
|
|
for (auto& kv : m_buckets)
|
|
{
|
|
Bucket& bucket = kv.second;
|
|
SCOPED_READ_LOCK(bucket.m_cacheEntryLookupLock, lock2);
|
|
|
|
for (auto& kv2 : bucket.m_cacheEntryLookup)
|
|
{
|
|
CacheEntries& entries = kv2.second;
|
|
SCOPED_READ_LOCK(entries.lock, lock3);
|
|
|
|
Set<u32> visibleIndices;
|
|
if (filterString.count)
|
|
{
|
|
u32 index = 0;
|
|
auto findString = [&](const Vector<u8>& offsets)
|
|
{
|
|
BinaryReader reader2(offsets.data(), 0, offsets.size());
|
|
while (reader2.GetLeft())
|
|
{
|
|
u64 offset = reader2.Read7BitEncoded();
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
bucket.m_casKeyTable.GetPathAndKey(path, casKey, bucket.m_pathTable, offset);
|
|
if (path.Contains(filterString.data))
|
|
return true;
|
|
if (Contains(CasKeyString(casKey).str, filterString.data))
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
for (auto& entry : entries.entries)
|
|
{
|
|
entries.Flatten(temp, entry);
|
|
if (findString(temp) || findString(entry.outputCasKeyOffsets))
|
|
visibleIndices.insert(index);
|
|
++index;
|
|
}
|
|
if (visibleIndices.empty())
|
|
continue;
|
|
}
|
|
|
|
|
|
writeLine(CasKeyString(kv2.first).str);
|
|
u32 index = 0;
|
|
for (auto& entry : entries.entries)
|
|
{
|
|
if (!visibleIndices.empty() && visibleIndices.find(index) == visibleIndices.end())
|
|
{
|
|
++index;
|
|
continue;
|
|
}
|
|
|
|
u64 age = MsToTime(GetFileTimeAsSeconds(now - entry.creationTime)*1000);
|
|
writeLine(line.Clear().Appendf(TC(" #%u (%s ago)"), index, TimeToText(age, true).str).data);
|
|
|
|
auto writeOffsets = [&](const Vector<u8>& offsets)
|
|
{
|
|
BinaryReader reader2(offsets.data(), 0, offsets.size());
|
|
while (reader2.GetLeft())
|
|
{
|
|
u64 offset = reader2.Read7BitEncoded();
|
|
CasKey casKey;
|
|
StringBuffer<> path;
|
|
bucket.m_casKeyTable.GetPathAndKey(path, casKey, bucket.m_pathTable, offset);
|
|
writeLine(line.Clear().Appendf(TC(" %s - %s"), path.data, CasKeyString(casKey).str).data);
|
|
}
|
|
};
|
|
|
|
writeLine(line.Clear().Append(TC(" Inputs:")).data);
|
|
entries.Flatten(temp, entry);
|
|
writeOffsets(temp);
|
|
writeLine(line.Clear().Append(TC(" Outputs:")).data);
|
|
writeOffsets(entry.outputCasKeyOffsets);
|
|
++index;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (command.Equals(TC("status")))
|
|
{
|
|
writeLine(TC("UbaCacheServer status"));
|
|
writeLine(line.Clear().Appendf(TC(" CreationTime: %s"), TimeToText(MsToTime(1000*GetFileTimeAsSeconds(GetNowFileTime() - m_creationTime)), true).str).data);
|
|
writeLine(line.Clear().Appendf(TC(" UpTime: %s"), TimeToText(GetTime() - m_startTime, true).str).data);
|
|
writeLine(line.Clear().Appendf(TC(" Longest maintenance: %s"), TimeToText(m_longestMaintenance).str).data);
|
|
writeLine(line.Clear().Appendf(TC(" Buckets:")).data);
|
|
u32 index = 0;
|
|
for (auto& kv : m_buckets)
|
|
{
|
|
Bucket& bucket = kv.second;
|
|
writeLine(line.Clear().Appendf(TC(" #%u - %llu"), index++, kv.first).data);
|
|
writeLine(line.Clear().Appendf(TC(" PathTable: %s"), BytesToText(bucket.m_pathTable.GetSize()).str).data);
|
|
writeLine(line.Clear().Appendf(TC(" CasKeyTable: %s"), BytesToText(bucket.m_casKeyTable.GetSize()).str).data);
|
|
}
|
|
|
|
u64 totalCasSize = 0;
|
|
u64 totalCasCount = 0;
|
|
m_storage.TraverseAllCasFiles([&](const CasKey& casKey, u64 size) { ++totalCasCount; totalCasSize += size; });
|
|
writeLine(line.Clear().Appendf(TC(" CasDb:")).data);
|
|
writeLine(line.Clear().Appendf(TC(" Count: %llu"), totalCasCount).data);
|
|
writeLine(line.Clear().Appendf(TC(" Size: %s"), BytesToText(totalCasSize).str).data);
|
|
}
|
|
else
|
|
{
|
|
writeLine(line.Clear().Appendf(TC("Unknown command: %s"), command.data).data);
|
|
}
|
|
|
|
Write("", 1);
|
|
|
|
if (!writeSuccess || !file.Close())
|
|
return false;
|
|
|
|
CasKey key;
|
|
bool deferCreation = false;
|
|
bool fileIsCompressed = false;
|
|
if (!m_storage.StoreCasFile(key, tempFile.data, CasKeyZero, deferCreation, fileIsCompressed))
|
|
return false;
|
|
|
|
writer.WriteCasKey(key);
|
|
|
|
DeleteFileW(tempFile.data);
|
|
return true;
|
|
}
|
|
}
|