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MCOL-987 Add LZ4 compression.

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* Adds CompressInterfaceLZ4 which uses LZ4 API for compress/uncompress.
* Adds CMake machinery to search LZ4 on running host.
* All methods which use static data and do not modify any internal data - become `static`,
  so we can use them without creation of the specific object. This is possible, because
  the header specification has not been modified. We still use 2 sections in header, first
  one with file meta data, the second one with pointers for compressed chunks.
* Methods `compress`, `uncompress`, `maxCompressedSize`, `getUncompressedSize` - become
  pure virtual, so we can override them for the other compression algos.
* Adds method `getChunkMagicNumber`, so we can verify chunk magic number
  for each compression algo.
* Renames "s/IDBCompressInterface/CompressInterface/g" according to requirement.
This commit is contained in:
Denis Khalikov
2021-04-01 17:26:38 +03:00
parent dd12bd3cd0
commit cc1c3629c5
45 changed files with 1311 additions and 549 deletions
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8
tests/shared_components_tests.cpp
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@@ -383,7 +383,7 @@ public:
BlockOp blockOp;
char fileName[20];
int rc;
char hdrs[ IDBCompressInterface::HDR_BUF_LEN * 2 ];
char hdrs[ CompressInterface::HDR_BUF_LEN * 2 ];
printf("\nRunning testCreateDeleteFile \n");
idbdatafile::IDBPolicy::init(true, false, "", 0);
@@ -966,7 +966,7 @@ public:
BlockOp blockOp;
char fileName[20];
int rc;
char hdrs[ IDBCompressInterface::HDR_BUF_LEN * 2 ];
char hdrs[ CompressInterface::HDR_BUF_LEN * 2 ];
int dbRoot = 1;
printf("\nRunning testExtensionWOPrealloc \n");
@@ -1085,7 +1085,7 @@ public:
int dbRoot = 1;
int colWidth = 65535;
DctnryCompress1 m_Dctnry;
DctnryCompress1 m_Dctnry(/*compressionType=*/1);
// This is the magic for the stub in FileOp::oid2FileName
int oId = 42;
@@ -1565,7 +1565,7 @@ public:
BlockOp blockOp;
char fileName[20];
int rc;
char hdrs[ IDBCompressInterface::HDR_BUF_LEN * 2 ];
char hdrs[ CompressInterface::HDR_BUF_LEN * 2 ];
int dbRoot = 1;
idbdatafile::IDBPolicy::init(true, false, "", 0);