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Overview of the Remote Differential Compression technology.
To develop Remote Differential Compression, you need these headers:
For programming guidance for this technology, see:
GeneratorParametersType Defines the set of supported generator parameters. |
RDC_ErrorCode Defines the set of RDC-specific error codes. |
RdcCreatedTables Defines values that describe the state of the similarity traits table, similarity file ID table, or both. |
RdcMappingAccessMode Defines the access mode values for RDC file mapping objects. |
RdcNeedType Defines the set of data chunks used to generate a remote copy. |
Append Adds the file ID and similarity data information to the tables in the similarity file. |
Append Adds the file ID to the similarity file ID table. |
Append Adds a SimilarityData structure to the similarity traits table. |
BeginDump Retrieves similarity data from the similarity traits table. |
CloseMapping Closes a file mapping object for a similarity traits table file. |
CloseTable Closes the tables in a similarity file. |
CloseTable Closes a similarity file ID table. |
CloseTable Closes a similarity traits table. |
ComputeDefaultRecursionDepth Computes the maximum level of recursion for the specified file size. |
CopyAndSwap Creates copies of an existing similarity traits table and an existing similarity file ID table, swaps the internal pointers, and deletes the existing tables. |
CreateComparator Creates a signature comparator. |
CreateGenerator Creates a signature generator that will generate the specified levels of signatures. |
CreateGeneratorParameters Returns an IRdcGeneratorParameters interface pointer initialized with the parameters necessary for a signature generator. |
CreateSignatureReader Creates a signature reader to allow an application to decode the contents of a signature file. |
CreateTable Creates or opens a similarity traits table and a similarity file ID table. |
CreateTable Creates or opens a similarity file ID table. |
CreateTable Creates or opens a similarity traits table. |
CreateTableIndirect Creates or opens a similarity traits table and a similarity file ID table using the RDC application's implementations of the ISimilarityTraitsMapping and IRdcFileWriter interfaces. |
CreateTableIndirect Creates or opens a similarity file ID table using the RDC application's implementation of the IRdcFileWriter interface. |
CreateTableIndirect Creates or opens a similarity traits table using the RDC application's implementation of the ISimilarityTraitsMapping interface. |
CreateView Maps a view of the file mapping for a similarity traits table file. |
DeleteOnClose Sets a file to be deleted (or truncated) on close. |
EnableSimilarity Enables the signature generator to generate similarity data. |
FindSimilarFileId Returns a list of files that are similar to a given file. |
FindSimilarFileIndex Returns a list of files that are similar to a given file. The results in the list are sorted in order of similarity, beginning with the most similar file. |
Flush Writes to the disk any dirty pages within a mapped view of a similarity traits table file. |
Get Returns information about the mapped view of a similarity traits table file. |
GetFilePosition Returns the current file position. |
GetFileSize Returns the size of a file. |
GetFileSize Returns the size of a similarity traits table file. |
GetGeneratorParameters Returns a copy of the parameters used to create the generator. |
GetGeneratorParametersType Returns the specific type of the parameters. |
GetHashWindowSize Returns the hash window size�the size of the sliding window used by the FilterMax generator for computing the hash used in the local maxima calculations. |
GetHorizonSize Returns the horizon size�the length over which the FilterMax generator looks for local maxima. |
GetLastIndex Retrieves the index of the last entry that was stored in the similarity traits table. |
GetNextData Retrieves one or more SimilarityDumpData structures from the similarity traits list that was returned by the ISimilarityTraitsTable::BeginDump method. |
GetNextFileId Retrieves the next valid similarity file ID in the file list that was returned by the ISimilarity::FindSimilarFileId method. |
GetPageSize Returns the page size (disk block size) for a similarity traits table file. |
GetParametersVersion Returns information about the version of RDC used to serialize the parameters. |
GetRDCVersion Retrieves the version of the installed RDC runtime and the oldest version of the RDC interfaces supported by the installed runtime. |
GetRecordCount Retrieves the number of records that are stored in the similarity file ID table in a similarity file. |
GetRecordCount Retrieves the number of records that are stored in a similarity file ID table. |
GetSerializeSize Returns the size, in bytes, of the serialized parameter data. |
GetSize Retrieves the number of entries in the file list that was returned by the ISimilarity::FindSimilarFileId method. |
GetView Returns the beginning and ending addresses for the mapped view of a similarity traits table file. |
Invalidate Marks a file ID as not valid in the similarity file ID table. |
Lookup Retrieves the file ID that corresponds to a given file index in the similarity file ID table. |
OpenGeneratorParameters Opens an existing serialized parameter block and returns an IRdcGeneratorParameters interface pointer initialized with the data. |
OpenMapping Opens the file mapping object for a similarity traits table file. |
Process Compares two signature streams (seed and source) and produces a needs list, which describes the chunks of file data needed to create the target file. |
Process Processes the input data and produces 0 or more output bytes. |
Read Reads the specified amount of data starting at the specified position. |
ReadHeader Reads the signature header and returns a copy of the parameters used to generate the signatures. |
ReadSignatures Reads a block of signatures from the current position. |
ReportProgress Reports the current completion percentage of a similarity operation in progress. |
ResizeMapping Resizes the file mapping object for a similarity traits table file. |
Results Retrieves the similarity data that was generated for a file by the signature generator. |
Serialize Serializes the parameter data into a block of memory. |
SetFileSize Sets the size of a similarity traits table file. |
SetHashWindowSize Sets the hash window size�the size of the sliding window used by the FilterMax generator for computing the hash used in the local maxima calculations. |
SetHorizonSize Sets the horizon size�the length over which the FilterMax generator looks for local maxima. |
Truncate Truncates a file to zero length. |
Unmap Unmaps a mapped view of a similarity traits table file. |
Write Write bytes to a file starting at a given offset. |
IFindSimilarResults Provides methods for retrieving information from the file list returned by the ISimilarity::FindSimilarFileId method. |
IRdcComparator Used to compare two signature streams (seed and source) and produce the list of source and seed file data chunks needed to create the target file. |
IRdcFileReader The IRdcFileReader interface is used to provide the equivalent of a file handle, because the data being synchronized may not exist as a file on disk. |
IRdcFileWriter Abstract interface to read from and write to a file. |
IRdcGenerator Used to process the input data and read the parameters used by the generator. |
IRdcGeneratorFilterMaxParameters Sets and retrieves parameters used by the FilterMax generator. |
IRdcGeneratorParameters Is the generic interface for all types of generator parameters. All generator parameter objects must support this interface. |
IRdcLibrary Is the primary interface for using RDC. |
IRdcSignatureReader Reads the signatures and the parameters used to generate the signatures. |
IRdcSimilarityGenerator Defines methods for enabling the signature generator to generate similarity data and for retrieving the similarity data after it is generated. |
ISimilarity Defines methods for storing and retrieving per-file similarity data and file IDs in a similarity file. |
ISimilarityFileIdTable Defines methods for storing and retrieving similarity file ID information. |
ISimilarityReportProgress Defines a method for RDC to report the current completion percentage of a similarity operation. |
ISimilarityTableDumpState Provides a method for retrieving information from the similarity traits list that was returned by the ISimilarityTraitsTable::BeginDump method. |
ISimilarityTraitsMappedView Provides methods that an RDC application can implement for manipulating a mapped view of a similarity traits table file. |
ISimilarityTraitsMapping Provides methods that an RDC application can implement for creating and manipulating a file mapping object for a similarity traits table file. |
ISimilarityTraitsTable Defines methods for storing per-file similarity data and performing similarity lookups. |
FindSimilarFileIndexResults Contains the file index information that the ISimilarityTraitsTable::FindSimilarFileIndex method returned for a matching file. |
RdcBufferPointer Describes a buffer. |
RdcNeed Contains information about a chunk that is required to synchronize two sets of data. |
RdcNeedPointer Describes an array of RdcNeed structures. |
RdcSignature Contains a single signature and the length of the chunk used to generate it. |
RdcSignaturePointer Describes an array of RdcSignature structures. |
SimilarityData Contains the similarity data for a file. |
SimilarityDumpData Contains the similarity information that was returned for a file by the ISimilarityTableDumpState::GetNextData method. |
SimilarityFileId Contains the similarity file ID for a file. |
SimilarityMappedViewInfo Contains information about a similarity mapped view. |
Training
Learning path
Implement finance and operations apps - Training
Plan and design your project methodology to successfully implement finance and operations apps with FastTrack services, data management and more.