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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /storage/connect/filamtxt.h
parentInitial commit. (diff)
downloadmariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz
mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/connect/filamtxt.h')
-rw-r--r--storage/connect/filamtxt.h254
1 files changed, 254 insertions, 0 deletions
diff --git a/storage/connect/filamtxt.h b/storage/connect/filamtxt.h
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+/************** FilAMTxt H Declares Source Code File (.H) **************/
+/* Name: FILAMTXT.H Version 1.4 */
+/* */
+/* (C) Copyright to the author Olivier BERTRAND 2005-2020 */
+/* */
+/* This file contains the file access method classes declares. */
+/***********************************************************************/
+
+#ifndef __FILAMTXT_H
+#define __FILAMTXT_H
+
+#include "block.h"
+#include "array.h"
+
+typedef class TXTFAM *PTXF;
+typedef class DOSFAM *PDOSFAM;
+typedef class BLKFAM *PBLKFAM;
+typedef class BINFAM *PBINFAM;
+typedef class DOSDEF *PDOSDEF;
+typedef class TDBDOS *PTDBDOS;
+
+/***********************************************************************/
+/* This is the base class for all file access method classes. */
+/***********************************************************************/
+class DllExport TXTFAM : public BLOCK {
+ friend class TDBDOS;
+ friend class TDBCSV;
+ friend class TDBFIX;
+ friend class TDBVCT;
+ friend class TDBJSON;
+ friend class DOSCOL;
+ friend class BINCOL;
+ friend class VCTCOL;
+ public:
+ // Constructor
+ TXTFAM(PDOSDEF tdp);
+ TXTFAM(PTXF txfp);
+
+ // Implementation
+ virtual AMT GetAmType(void) = 0;
+ virtual int GetPos(void) = 0;
+ virtual int GetNextPos(void) = 0;
+ virtual PTXF Duplicate(PGLOBAL g) = 0;
+ virtual bool GetUseTemp(void) {return false;}
+ virtual int GetDelRows(void) {return DelRows;}
+ PFBLOCK GetTo_Fb(void) {return To_Fb;}
+ int GetCurBlk(void) {return CurBlk;}
+ void SetTdbp(PTDBDOS tdbp) {Tdbp = tdbp;}
+ int GetBlock(void) {return Block;}
+ void SetBlkPos(int *bkp) {BlkPos = bkp;}
+ void SetNrec(int n) {Nrec = n;}
+ char *GetBuf(void) {return To_Buf;}
+ int GetRows(void) {return Rows;}
+ bool IsBlocked(void) {return Blocked;}
+
+ // Methods
+ virtual void Reset(void);
+ virtual int GetFileLength(PGLOBAL g);
+ virtual int Cardinality(PGLOBAL g);
+ virtual int MaxBlkSize(PGLOBAL g, int s);
+ virtual bool AllocateBuffer(PGLOBAL) {return false;}
+ virtual void ResetBuffer(PGLOBAL) {}
+ virtual int GetNerr(void) {return 0;}
+ virtual int GetRowID(void) = 0;
+ virtual bool RecordPos(PGLOBAL g) = 0;
+ virtual bool SetPos(PGLOBAL g, int recpos) = 0;
+ virtual int SkipRecord(PGLOBAL g, bool header) = 0;
+ virtual bool OpenTableFile(PGLOBAL g) = 0;
+ virtual bool DeferReading(void) {IsRead = false; return true;}
+ virtual int ReadBuffer(PGLOBAL g) = 0;
+ virtual int WriteBuffer(PGLOBAL g) = 0;
+ virtual int DeleteRecords(PGLOBAL g, int irc) = 0;
+ virtual void CloseTableFile(PGLOBAL g, bool abort) = 0;
+ virtual void Rewind(void) = 0;
+ virtual int InitDelete(PGLOBAL g, int fpos, int spos);
+ bool AddListValue(PGLOBAL g, int type, void *val, PPARM *top);
+ int StoreValues(PGLOBAL g, bool upd);
+ int UpdateSortedRows(PGLOBAL g);
+ int DeleteSortedRows(PGLOBAL g);
+
+ protected:
+ // Members
+ PTDBDOS Tdbp; // To table class
+ PCSZ To_File; // Points to table file name
+ PFBLOCK To_Fb; // Pointer to file block
+ PPARM To_Pos; // Pointer to position list
+ PPARM To_Sos; // Pointer to start position list
+ PPARM To_Upd; // Pointer to udated line list
+ PARRAY Posar; // Pointer to position array
+ PARRAY Sosar; // Pointer to start position array
+ PARRAY Updar; // Pointer to udated lines array
+ bool Placed; // true if Recpos was externally set
+ bool IsRead; // false for deferred reading
+ bool Blocked; // true if using blocked I/O
+ char *To_Buf; // Points to I/O buffer
+ void *DelBuf; // Buffer used to move lines in Delete
+ int *BlkPos; // To array of block positions
+ int BlkLen; // Current block length
+ int Buflen; // Buffer length
+ int Dbflen; // Delete buffer length
+ int Rows; // Number of rows read so far
+ int DelRows; // Number of deleted rows
+ int Headlen; // Number of bytes in header
+ int Lrecl; // Logical Record Length
+ int Block; // Number of blocks in table
+ int Last; // Number of elements of last block
+ int Nrec; // Number of records in buffer
+ int OldBlk; // Index of last read block
+ int CurBlk; // Index of current block
+ int CurNum; // Current buffer line number
+ int ReadBlks; // Number of blocks read (selected)
+ int Rbuf; // Number of lines read in buffer
+ int Modif; // Number of modified lines in block
+ int Blksize; // Size of padded blocks
+ int Ending; // Length of line end
+ int Fpos; // Position of last read record
+ int Spos; // Start position for update/delete move
+ int Tpos; // Target Position for delete move
+ bool Padded; // true if fixed size blocks are padded
+ bool Eof; // true if an EOF (0xA) character exists
+ bool Abort; // To abort on error
+ char *CrLf; // End of line character(s)
+ }; // end of class TXTFAM
+
+/***********************************************************************/
+/* This is the DOS/UNIX Access Method class declaration for standard */
+/* text files with variable record format (DOS, CSV, FMT) */
+/***********************************************************************/
+class DllExport DOSFAM : public TXTFAM {
+ public:
+ // Constructor
+ DOSFAM(PDOSDEF tdp);
+ DOSFAM(PDOSFAM txfp);
+ DOSFAM(PBLKFAM tdfp, PDOSDEF tdp);
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_DOS;}
+ virtual bool GetUseTemp(void) {return UseTemp;}
+ virtual int GetPos(void);
+ virtual int GetNextPos(void);
+ virtual PTXF Duplicate(PGLOBAL g)
+ {return (PTXF)new(g) DOSFAM(this);}
+
+ // Methods
+ virtual void Reset(void);
+ virtual int GetFileLength(PGLOBAL g);
+ virtual int Cardinality(PGLOBAL g);
+ virtual int MaxBlkSize(PGLOBAL g, int s);
+ virtual bool AllocateBuffer(PGLOBAL g);
+ virtual int GetRowID(void);
+ virtual bool RecordPos(PGLOBAL g);
+ virtual bool SetPos(PGLOBAL g, int recpos);
+ virtual int SkipRecord(PGLOBAL g, bool header);
+ virtual bool OpenTableFile(PGLOBAL g);
+ virtual int ReadBuffer(PGLOBAL g);
+ virtual int WriteBuffer(PGLOBAL g);
+ virtual int DeleteRecords(PGLOBAL g, int irc);
+ virtual void CloseTableFile(PGLOBAL g, bool abort);
+ virtual void Rewind(void);
+
+ protected:
+ virtual bool OpenTempFile(PGLOBAL g);
+ virtual bool MoveIntermediateLines(PGLOBAL g, bool *b);
+ virtual int RenameTempFile(PGLOBAL g);
+ virtual int InitDelete(PGLOBAL g, int fpos, int spos);
+
+ // Members
+ FILE *Stream; // Points to Dos file structure
+ FILE *T_Stream; // Points to temporary file structure
+ PFBLOCK To_Fbt; // Pointer to temp file block
+ bool UseTemp; // True to use a temporary file in Upd/Del
+ bool Bin; // True to force binary mode
+ }; // end of class DOSFAM
+
+/***********************************************************************/
+/* This is the DOS/UNIX Access Method class declaration for standard */
+/* text files with variable record format (DOS, CSV, FMT) */
+/***********************************************************************/
+class DllExport BLKFAM : public DOSFAM {
+ public:
+ // Constructor
+ BLKFAM(PDOSDEF tdp);
+ BLKFAM(PBLKFAM txfp);
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_BLK;}
+ virtual int GetPos(void);
+ virtual int GetNextPos(void);
+ virtual PTXF Duplicate(PGLOBAL g)
+ {return (PTXF)new(g) BLKFAM(this);}
+
+ // Methods
+ virtual void Reset(void);
+ virtual int Cardinality(PGLOBAL g);
+ virtual int MaxBlkSize(PGLOBAL g, int s);
+ virtual bool AllocateBuffer(PGLOBAL g);
+ virtual int GetRowID(void);
+ virtual bool RecordPos(PGLOBAL g);
+ virtual bool SetPos(PGLOBAL g, int recpos);
+ virtual int SkipRecord(PGLOBAL g, bool header);
+ virtual int ReadBuffer(PGLOBAL g);
+ virtual int WriteBuffer(PGLOBAL g);
+ virtual void CloseTableFile(PGLOBAL g, bool abort);
+ virtual void Rewind(void);
+
+ protected:
+ // Members
+ char *CurLine; // Position of current line in buffer
+ char *NxtLine; // Position of Next line in buffer
+ char *OutBuf; // Buffer to write in temporary file
+ bool Closing; // True when closing on Update
+ }; // end of class BLKFAM
+
+/***********************************************************************/
+/* This is the DOS/UNIX Access Method class declaration for binary */
+/* files with variable record format (BJSON) */
+/***********************************************************************/
+class DllExport BINFAM : public DOSFAM {
+public:
+ // Constructor
+ BINFAM(PDOSDEF tdp) : DOSFAM(tdp) {Recsize = 0;}
+ BINFAM(PBINFAM txfp) : DOSFAM(txfp) {Recsize = txfp->Recsize;}
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_BIN;}
+//virtual int GetPos(void);
+//virtual int GetNextPos(void);
+ virtual PTXF Duplicate(PGLOBAL g) { return (PTXF)new(g) BINFAM(this); }
+
+ // Methods
+//virtual void Reset(void) {TXTFAM::Reset();}
+//virtual int GetFileLength(PGLOBAL g);
+//virtual int Cardinality(PGLOBAL g);
+ virtual int MaxBlkSize(PGLOBAL g, int s) {return s;}
+ virtual bool AllocateBuffer(PGLOBAL g);
+//virtual int GetRowID(void);
+//virtual bool RecordPos(PGLOBAL g);
+//virtual bool SetPos(PGLOBAL g, int recpos);
+ virtual int SkipRecord(PGLOBAL g, bool header) {return RC_OK;}
+//virtual bool OpenTableFile(PGLOBAL g);
+ virtual int ReadBuffer(PGLOBAL g);
+ virtual int WriteBuffer(PGLOBAL g);
+//virtual int DeleteRecords(PGLOBAL g, int irc);
+//virtual void CloseTableFile(PGLOBAL g, bool abort);
+//virtual void Rewind(void);
+
+//protected:
+//virtual int InitDelete(PGLOBAL g, int fpos, int spos);
+
+ // Members
+ size_t Recsize; // Length of last read or next written record
+}; // end of class BINFAM
+
+#endif // __FILAMTXT_H