Files
2025-11-24 14:19:51 +05:30

111 lines
6.3 KiB
C++

/*
* Original work: Copyright (c) 2014, Oculus VR, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* RakNet License.txt file in the licenses directory of this source tree. An additional grant
* of patent rights can be found in the RakNet Patents.txt file in the same directory.
*
*
* Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
*
* This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
* license found in the license.txt file in the root directory of this source tree.
*/
/// \file
/// \brief An implementation of the AutopatcherRepositoryInterface to use MySQL to store the relevant data
///
#ifndef __MYSQL_REPOSITORY_H
#define __MYSQL_REPOSITORY_H
#include "slikenet/AutopatcherRepositoryInterface.h"
#include "MySQLInterface.h"
#include "slikenet/Export.h"
namespace SLNet
{
class FileListProgress;
/// \ingroup Autopatcher
/// An implementation of the AutopatcherRepositoryInterface to use MySQL to store the relevant data
class RAK_DLL_EXPORT AutopatcherMySQLRepository : public AutopatcherRepositoryInterface, public MySQLInterface
{
public:
AutopatcherMySQLRepository();
~AutopatcherMySQLRepository();
/// Create the tables used by the autopatcher, for all applications. Call this first.
/// \return True on success, false on failure.
bool CreateAutopatcherTables(void);
/// Destroy the tables used by the autopatcher. Don't call this unless you don't want to use the autopatcher anymore, or are testing.
/// \return True on success, false on failure.
bool DestroyAutopatcherTables(void);
/// Add an application for use by files. Call this second.
/// \param[in] applicationName A null terminated string.
/// \param[in] userName Stored in the database, but otherwise unused. Useful to track who added this application.
/// \return True on success, false on failure.
bool AddApplication(const char *applicationName, const char *userName);
/// Remove an application and files used by that application.
/// \param[in] applicationName A null terminated string previously passed to AddApplication
/// \return True on success, false on failure.
bool RemoveApplication(const char *applicationName);
/// Update all the files for an application to match what is at the specified directory. Call this third.
/// Be careful not to call this with the wrong directory.
/// This is implemented in a Begin and Rollback block so you won't a messed up database from get partial updates.
/// \param[in] applicationName A null terminated string previously passed to AddApplication
/// \param[in] applicationDirectory The base directory of your application. All files in this directory and subdirectories are added.
/// \param[in] userName Stored in the database, but otherwise unused. Useful to track who added this revision
/// \param[in] cb Callback to get progress updates. Pass 0 to not use.
/// \return True on success, false on failure.
bool UpdateApplicationFiles(const char *applicationName, const char *applicationDirectory, const char *userName, FileListProgress *cb);
/// Get list of files added and deleted since a certain date. This is used by AutopatcherServer and not usually explicitly called.
/// \param[in] applicationName A null terminated string previously passed to AddApplication
/// \param[out] addedFiles A list of the current versions of filenames with SHA1_LENGTH byte hashes as their data that were created after \a sinceData
/// \param[out] deletedFiles A list of the current versions of filenames that were deleted after \a sinceData
/// \param[in] An input date, in the string format of a timestamp.
/// \return True on success, false on failure.
virtual bool GetChangelistSinceDate(const char *applicationName, FileList *addedOrModifiedFilesWithHashData, FileList *deletedFiles, double sinceDate);
/// Get patches (or files) for every file in input, assuming that input has a hash for each of those files. This is used by AutopatcherServer and not usually explicitly called.
/// \param[in] applicationName A null terminated string previously passed to AddApplication
/// \param[in] input A list of files with hashes to get from the database. If this hash exists, a patch to the current version is returned if this file is not the current version. Otherwise the current version is returned.
/// \param[out] patchList A list of files with either the filedata or the patch. This is a subset of \a input. The context data for each file will be either PC_WRITE_FILE (to just write the file) or PC_HASH_WITH_PATCH (to patch). If PC_HASH_WITH_PATCH, then the file contains a SHA1_LENGTH byte patch followed by the hash. The datalength is patchlength + SHA1_LENGTH
/// \return 1 on success, 0 on database failure, -1 on tried to download original unmodified file
virtual int GetPatches(const char *applicationName, FileList *input, bool allowDownloadOfOriginalUnmodifiedFiles, FileList *patchList);
// Not yet implemented
virtual bool GetMostRecentChangelistWithPatches(SLNet::RakString &applicationName, FileList *patchedFiles, FileList *addedFiles, FileList *addedOrModifiedFileHashes, FileList *deletedFiles, double *priorRowPatchTime, double *mostRecentRowPatchTime);
/// If any of the above functions fail, the error string is stored internally. Call this to get it.
virtual const char *GetLastError(void) const;
/// Read part of a file into \a destination
/// Return the number of bytes written. Return 0 when file is done.
/// \param[in] filename Filename to read
/// \param[in] startReadBytes What offset from the start of the file to read from
/// \param[in] numBytesToRead How many bytes to read. This is also how many bytes have been allocated to preallocatedDestination
/// \param[out] preallocatedDestination Write your data here
/// \return The number of bytes read, or 0 if none
virtual unsigned int GetFilePart( const char *filename, unsigned int startReadBytes, unsigned int numBytesToRead, void *preallocatedDestination, FileListNodeContext context);
/// \return Passed to FileListTransfer::Send() as the _chunkSize parameter.
virtual const int GetIncrementalReadChunkSize(void) const;
st_mysql *filePartConnection;
SimpleMutex filePartConnectionMutex;
};
} // namespace SLNet
#endif