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Diffstat (limited to 'bin/bbstored/HousekeepStoreAccount.h')
| -rw-r--r-- | bin/bbstored/HousekeepStoreAccount.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/bin/bbstored/HousekeepStoreAccount.h b/bin/bbstored/HousekeepStoreAccount.h new file mode 100644 index 00000000..85180bf0 --- /dev/null +++ b/bin/bbstored/HousekeepStoreAccount.h @@ -0,0 +1,135 @@ +// distribution boxbackup-0.10 (svn version: 494) +// +// Copyright (c) 2003 - 2006 +// Ben Summers and contributors. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// 3. All use of this software and associated advertising materials must +// display the following acknowledgment: +// This product includes software developed by Ben Summers. +// 4. The names of the Authors may not be used to endorse or promote +// products derived from this software without specific prior written +// permission. +// +// [Where legally impermissible the Authors do not disclaim liability for +// direct physical injury or death caused solely by defects in the software +// unless it is modified by a third party.] +// +// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR +// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +// DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, +// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +// POSSIBILITY OF SUCH DAMAGE. +// +// +// +// -------------------------------------------------------------------------- +// +// File +// Name: HousekeepStoreAccount.h +// Purpose: Action class to perform housekeeping on a store account +// Created: 11/12/03 +// +// -------------------------------------------------------------------------- + +#ifndef HOUSEKEEPSTOREACCOUNT__H +#define HOUSEKEEPSTOREACCOUNT__H + +#include <string> +#include <set> +#include <vector> + +class BackupStoreDaemon; +class BackupStoreDirectory; + + +// -------------------------------------------------------------------------- +// +// Class +// Name: HousekeepStoreAccount +// Purpose: Action class to perform housekeeping on a store account +// Created: 11/12/03 +// +// -------------------------------------------------------------------------- +class HousekeepStoreAccount +{ +public: + HousekeepStoreAccount(int AccountID, const std::string &rStoreRoot, int StoreDiscSet, BackupStoreDaemon &rDaemon); + ~HousekeepStoreAccount(); + + void DoHousekeeping(); + + +private: + // utility functions + void MakeObjectFilename(int64_t ObjectID, std::string &rFilenameOut); + + bool ScanDirectory(int64_t ObjectID); + bool DeleteFiles(); + bool DeleteEmptyDirectories(); + void DeleteFile(int64_t InDirectory, int64_t ObjectID, BackupStoreDirectory &rDirectory, const std::string &rDirectoryFilename, int64_t OriginalDirSizeInBlocks); + +private: + typedef struct + { + int64_t mObjectID; + int64_t mInDirectory; + int64_t mSizeInBlocks; + int32_t mMarkNumber; + int32_t mVersionAgeWithinMark; // 0 == current, 1 latest old version, etc + } DelEn; + + struct DelEnCompare + { + bool operator()(const DelEn &x, const DelEn &y); + }; + + int mAccountID; + std::string mStoreRoot; + int mStoreDiscSet; + BackupStoreDaemon &mrDaemon; + + int64_t mDeletionSizeTarget; + + std::set<DelEn, DelEnCompare> mPotentialDeletions; + int64_t mPotentialDeletionsTotalSize; + int64_t mMaxSizeInPotentialDeletions; + + // List of directories which are empty, and might be good for deleting + std::vector<int64_t> mEmptyDirectories; + + // The re-calculated blocks used stats + int64_t mBlocksUsed; + int64_t mBlocksInOldFiles; + int64_t mBlocksInDeletedFiles; + int64_t mBlocksInDirectories; + + // Deltas from deletion + int64_t mBlocksUsedDelta; + int64_t mBlocksInOldFilesDelta; + int64_t mBlocksInDeletedFilesDelta; + int64_t mBlocksInDirectoriesDelta; + + // Deletion count + int64_t mFilesDeleted; + int64_t mEmptyDirectoriesDeleted; + + // Poll frequency + int mCountUntilNextInterprocessMsgCheck; +}; + +#endif // HOUSEKEEPSTOREACCOUNT__H + |