ING_DB
This commit is contained in:
Oliver Lehmann
parent
29b027d4f4
commit
00eeb591b4
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# define IDSIZE 6 /* size of file id */
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/* available buffer space */
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# define BATCHSIZE (PGSIZE - IDSIZE)
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struct batchbuf
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{
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char file_id[IDSIZE]; /* unique file name identifier */
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char bbuf[BATCHSIZE]; /* buffer for batch storage */
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};
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struct si_doms
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{
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int rel_off; /* offset in primary tuple */
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int tupo_off; /* offset in saved tuple-old */
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int dom_size; /* width of the domain */
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/* if zero then domain not used */
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};
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struct batchhd
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{
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char db_name[MAXNAME + 1]; /* data base name */
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char rel_name[MAXNAME + 1]; /* relation name */
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char userid[2]; /* DBS user code */
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long num_updts; /* actual number of tuples to be updated */
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short mode_up; /* type of update */
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short tido_size; /* width of old_tuple_id field */
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short tupo_size; /* width of old tuple */
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short tupn_size; /* width of new tuple */
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short tidn_size; /* width of new_tuple_id field */
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short si_dcount; /* number of sec. index domains affected */
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struct si_doms si[MAXDOM + 1]; /* entry for each domain with sec. index */
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};
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extern int Batch_fp; /* file descriptor for batch file */
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extern int Batch_cnt; /* no of bytes taken from the current buffer */
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extern int Batch_dirty; /* used during update to mark a dirty page */
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extern int Batch_lread; /* number of bytes last read in readbatch() */
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extern int Batch_recovery; /* TRUE is this is recovery, else FALSE */
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extern struct batchbuf Batchbuf;
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extern struct batchhd Batchhd;
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extern char *Fileset; /* unique id of batch maker */
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/* SCANNER.H */
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/* contains the global structures and variable declarations needed */
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/* by the lexical analyzer. This includes Manifest Constants and */
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/* certain vars for internal communication purposes. Therefore, */
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/* extreme care should be exercised when modifying this file. */
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/* MANIFEST CONSTANTS */
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# define SBUFSIZ 2000 /* max size of symbol table for */
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# define MAXSTRING 255 /* max length of strings */
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# define GOVAL -1 /* semantic value for cmd names */
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/* CHARACTER TYPES */
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# define ALPHA 1
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# define NUMBR 2
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# define OPATR 3
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# define PUNCT 4
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# define CNTRL 5
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/* Modes for input from EQL front end */
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# define CVAR_I2 '\1' /* 2 byte integer */
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# define CVAR_F8 '\4' /* 8 byte floating number */
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# define CVAR_S '\3' /* string with null byte */
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# define CVAR_I4 '\6' /* 4 byte integer */
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/* error number definitions */
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# define SYMERR 2500 /* syntactic error */
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# define STRTERM 2700 /* non term string */
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# define STRLONG 2701 /* string too long */
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# define BADOP 2702 /* can't find operator in table */
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# define NAMELONG 2703 /* name too long */
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# define SBUFOFLO 2704 /* over flow symbol table */
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# define COMMTERM 2705 /* non term comment */
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# define FCONSTERR 2707 /* float constant error */
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# define CNTRLCHR 2708 /* control char from EQL */
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# define NUMBUFOFLO 2709 /* buffer oflo in number.c */
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/* KEYWORD and OPERATOR TABLE */
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struct optab /* key word/operator tables */
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{
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char *term; /* key word/operator body */
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short token; /* associated parser token */
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short opcode; /* associated parser opcode */
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};
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/* SPECIAL TOKENS for scanner */
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struct special
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{
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short sconst;
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short bgncmnt;
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short endcmnt;
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short i2const;
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short i4const;
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# ifndef NO_F4
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short f4const;
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# endif
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short f8const;
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short name;
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};
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/* last token struct */
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struct lastok
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{
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short toktyp;
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char *tok;
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short tokop;
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};
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/* declarations */
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extern struct special Tokens; /* special tokens table */
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extern struct optab Optab[]; /* operator table */
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extern struct optab Keyword[]; /* keyword table */
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extern struct lastok Lastok;
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extern int Lcase; /* UPPER->lower conversion flag */
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extern int Pars; /* flag for call getcvar or not */
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extern int Keyent; /* # of entries in the Keyword table */
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