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Text File | 1990-07-27 | 24.0 KB | 735 lines

/************************************************* ** ** ** sc_base.h ** ** ** ** SoftC Database Library common header ** ** ** ** Copyright (C) 1988, 1989, 1990 by ** ** SoftC, Ltd. ** ** 16820 3rd St NE ** ** Ham Lake, MN 55304 ** ** (612) 434-6968 ** ** ** ** All rights reserved. ** *************************************************/ /********** * * Program Control Prototypes * **********/ signed int scdinit( signed int, signed int ); void scdterm( void ); #define sceclr() (sc_code = SC_SUCCESS) /********** * * Defines * **********/ /* scdikfind, scdnkfind, scdckfind definitions */ #define SC_FIRST 1 /* find first key */ #define SC_EXACT 2 /* find exact key (uses record number) */ /* sctrget, sctrput definitions */ #define SC_CRUNCHNG 0 /* leave memo buffer unchanged */ #define SC_CRDELETE 1 /* delete soft carriage returns */ /* scdcopen, scddopen, scdiopen, scdnopen, scdtopen */ #define SC_RDWR 0 /* read/write access (default) */ #define SC_RDONLY 1 /* read only access */ #define SC_BUFFER 0 /* buffer disk writes in memory (default) */ #define SC_FLUSH 2 /* force all writes to disk */ #define SC_EXCLUDE 0 /* open file for exclusive use (default) */ #define SC_SHARED 4 /* open file for shared use */ /* scdcbfrsz, scddbfrsz, scdibfrsz, scdnbfrsz */ #define SC_SETSZ 0 /* set buffer size */ #define SC_GETSZ 1 /* get current buffer size */ /* scddrget */ #define SC_UPDATE 1 /* update existing record */ #define SC_ADD 2 /* append record at end of file */ /* scdccreate, scdicreate, scdncreate */ #define SC_UNIQUE 0x80 /* unique index keys */ #define SC_CKEY 'C' /* character type key */ #define SC_DKEY 'D' /* date type key */ #define SC_LKEY 'L' /* logical key type */ #define SC_NKEY 'N' /* numeric type key */ /* scdinit */ #define SC_USEXHNDL 1 /* allow more than 20 open files */ /********** * * Type Definitions * **********/ typedef struct { /* database field description */ signed char name[11]; /* field name */ signed char type; /* field type * 'c' or 'C' - character * 'd' or 'D' - date * 'f' or 'F' - floating point (binary) * 'l' or 'L' - logical * 't' or 'T' - true * 'f' or 'F' - false * 'y' or 'Y' - yes * 'n' or 'N' - no * '?' - uninitialized * 'n' or 'N' - floating point (bcd) */ signed int len; /* field width */ signed int decpl; /* decimal count */ } SC_FIELD; typedef struct { /* file open bit fields */ unsigned int isreadonly:1; /* read only - or - read/write (default) */ unsigned int isshareable:1; /* shared - or - single (default) */ unsigned int isunbuffered:1; /* no buffering - or - auto buffer (default) */ } SC_FLAGS; typedef struct { /* dBASE data file information packet */ signed char fname[80]; /* file name */ signed char style; /* file type (dBase3 or dBase4) */ signed char memo; /* memo file required */ signed char mdx; /* dBase4 .MDX file required (true or false) */ signed char trans; /* dBase4 transaction in process (true or false) */ signed char encrypt; /* dBase4 data file encrypted (true or false) */ signed char lockt; /* record/file/no lock */ unsigned long ladrs; /* beginning address of locked area */ unsigned long lsize; /* length of locked region */ SC_FLAGS flags; /* miscellaneous flags */ } SC_DBFINFO; /* SC_DBFINFO style flag */ #define SC_DB3 0 /* dBase3 type data file */ #define SC_DB4 1 /* dBase4 type data file */ /* SC_DBFINFO memo flag */ #define SC_USEMEMO 2 /* memo file used */ #define SC_NOMEMO 0 /* no memo file required */ /* SC_DBFINFO lockt flag */ #define SC_DRECLCK 0x01 /* record lock active */ #define SC_DFILLCK 0x02 /* file lock active */ typedef struct { /* dBASE data file record information packet */ signed int reclen; /* record length in bytes */ signed int numflds; /* number of fields in record */ unsigned char *bfr; /* address of the record buffer */ } SC_DBFRINFO; typedef struct { /* dBASE memo file information packet */ signed char fname[80]; /* file name */ SC_FLAGS flags; /* miscellaneous flags */ } SC_DBTINFO; typedef struct { /* dBASE index file information packet */ signed char fname[80]; /* file name */ signed char keytype; /* key type ('C' Character, 'N' Date/Numeric) */ signed char keylen; /* key length */ signed int exprlen; /* key expression length */ SC_FLAGS flags; /* miscellaneous flags */ } SC_NDXINFO; typedef struct { /* Clipper index file information packet */ signed char fname[80]; /* file name */ signed int keylen; /* key length */ signed int keydpl; /* number of decimal places in numeric keys */ signed int exprlen; /* key expression length */ SC_FLAGS flags; /* miscellaneous flags */ } SC_NTXINFO; typedef struct { /* FoxBASE index file information packet */ signed char fname[80]; /* file name */ signed char keytype; /* key type ('C' Character, 'N' Date/Numeric) */ signed char keylen; /* key length */ signed int exprlen; /* key expression length */ SC_FLAGS flags; /* miscellaneous flags */ } SC_IDXINFO; /********** * * dBASE Database File Manipulator Prototypes * **********/ signed int scddbfrsz( signed int, /* data file handle */ signed int *, /* I/O buffer length in records */ signed int ); /* set or get buffer length */ signed int scddbof( signed int ); /* file handle */ signed int scddclose( signed int ); /* file handle */ signed int scddcreate(signed char *, /* filename */ signed int, /* number of data fields */ SC_FIELD *, /* field description array */ signed int ); /* dBase version (3 or 4) */ signed int scddeof( signed int ); /* file handle */ signed int scddflush( signed int ); /* file handle */ signed int scddinfo( signed int, /* file handle */ SC_DBFINFO * ); /* file information & status */ signed int scddlock( signed int ); /* file handle */ signed int scddlud( signed int, /* file handle */ signed char *, /* last update date string */ signed int ); /* date string format */ signed int scddopenx( signed int *, /* file handle */ signed char *, /* filename */ signed int ); /* open mode & characteristics */ signed int scddpack( signed int *); /* data file handle */ signed int scddsize( signed int, /* file handle */ signed long * ); /* number of data records */ signed int scddunlock(signed int ); /* file handle */ /********** * * dBASE Database Field Manipulator Prototypes * **********/ signed int scddfgets( signed int, /* file handle */ signed int, /* field number */ char * ); /* buffer for field data */ signed int scddfget( signed int, /* file handle */ signed int, /* field number */ void * ); /* buffer for field data */ signed int scddfinfo( signed int, /* file handle */ signed int *, /* length of longest field */ SC_FIELD * ); /* field description array */ signed int scddfnam2no(signed int, /* file handle */ signed int *, /* field number */ signed char *); /* field name */ signed int scddfputs( signed int, /* file handle */ signed int, /* field number */ char * ); /* buffer for field data */ signed int scddfput( signed int, /* file handle */ signed int, /* field number */ void * ); /* buffer for field data */ /********** * * dBASE Database Record Manipulator Prototypes * **********/ signed int scddrclear(signed int ); /* file handle */ signed int scddrdel( signed int, /* file handle */ signed long ); /* record number to delete */ signed int scddrget( signed int, /* file handle */ signed long ); /* record number to read */ signed int scddrinfo( signed int, /* file handle */ SC_DBFRINFO * ); /* record info structure */ signed int scddrlock( signed int, /* file handle */ signed long ); /* record number to lock */ signed int scddrnum( signed int, /* file handle */ signed long * ); /* current data record number */ signed int scddrput( signed int, /* file handle */ signed long *, /* record number */ signed int ); /* append or update record */ signed int scddrstat( signed int ); /* file handle */ signed int scddrundel(signed int, /* fiel handle */ signed long ); /* record number */ /********** * * dBASE Index File Manipulators Prototypes * **********/ signed int scdnbfrsz( signed int, /* index file handle */ signed int *, /* buffer length in pages */ signed int ); /* set or get buffer length */ signed int scdnclose( signed int ); /* file handle */ signed int scdncreate(signed char *, /* filename */ signed int, /* index key type */ signed char *, /* key expression */ signed int ); /* key length */ signed int scdnexpr( signed int, /* file handle */ signed char * ); /* key expression */ signed int scdnflush( signed int ); /* file handle */ signed int scdnindex( signed int, /* data file handle */ signed char *, /* new file name */ signed int, /* index key type */ signed char *, /* key expression */ signed int ); /* key length */ signed int scdninfo( signed int, /* file handle */ SC_NDXINFO * ); /* file information and status */ signed int scdnopenx( signed int *, /* file handle */ signed char *, /* filename */ signed int ); /* open mode and characteristics */ /********** * * dBASE Index Key Building Prototypes * **********/ signed int scdnkdate( double *, /* numeric date */ signed char *, /* date string */ signed int ); /* date string format type */ signed int scdnkmake( signed int, /* .DBF file handle */ signed int, /* .NDX file handle */ void ** ); /* index key */ /********** * * dBASE Index Key Manipulator Prototypes * **********/ signed int scdnkadd( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdnkbot( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdnkcur( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdnkdel( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdnkfind( signed int, /* file handle */ void *, /* key string */ signed long *, /* data record number */ signed int); /* exact match or first */ signed int scdnknext( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdnkprev( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdnktop( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ /********** * * Clipper Index File Manipulators Prototypes * **********/ signed int scdcbfrsz( signed int, /* index file handle */ signed int *, /* buffer length in pages */ signed int ); /* set or get buffer length */ signed int scdcclose( signed int ); /* file handle */ signed int scdccreate(signed char *, /* filename */ signed int, /* index key type */ signed char *, /* key expression */ signed int, /* key length */ signed int ); /* number of decimal places */ signed int scdcexpr( signed int, /* file handle */ signed char * ); /* key expression */ signed int scdcflush( signed int ); /* file handle */ signed int scdcindex( signed int, /* data file handle */ signed char *, /* new file name */ signed int, /* index key type */ signed char *, /* key expression */ signed int, /* key length */ signed int ); /* number of decimal places */ signed int scdcinfo( signed int, /* file handle */ SC_NTXINFO * ); /* file information and status */ signed int scdcopenx( signed int *, /* file handle */ signed char *, /* filename */ signed int ); /* open mode and characteristics */ /********** * * Clipper Index Key Building Prototypes * **********/ signed int scdckmake( signed int, /* .DBF file handle */ signed int, /* .NTX file handle */ void ** ); /* index key */ /********** * * Clipper Index Key Manipulator Prototypes * **********/ signed int scdckadd( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdckbot( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdckcur( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdckdel( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdckfind( signed int, /* file handle */ void *, /* key string */ signed long *, /* data record number */ signed int); /* exact match or first */ signed int scdcknext( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdckprev( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdcktop( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ /********** * * FoxBASE+ Index File Manipulators Prototypes * **********/ signed int scdibfrsz( signed int, /* index file handle */ signed int *, /* buffer length in pages */ signed int ); /* set or get buffer length */ signed int scdiclose( signed int ); /* file handle */ signed int scdicreate(signed char *, /* filename */ signed int, /* index key type */ signed char *, /* key expression */ signed int ); /* key length */ signed int scdiexpr( signed int, /* file handle */ signed char * ); /* key expression */ signed int scdiflush( signed int ); /* file handle */ signed int scdiindex( signed int, /* data file handle */ signed char *, /* new file name */ signed int, /* index key type */ signed char *, /* key expression */ signed int ); /* key length */ signed int scdiinfo( signed int, /* file handle */ SC_IDXINFO * ); /* file information and status */ signed int scdiopenx( signed int *, /* file handle */ signed char *, /* filename */ signed int ); /* open mode and characteristics */ /********** * * FoxBASE+ Index Key Building Prototypes * **********/ signed int scdikdate( unsigned char *, /* FoxBASE date */ signed char *, /* date string */ signed int ); /* date string format type */ signed int scdikmake( signed int, /* .DBF file handle */ signed int, /* .NTX file handle */ void ** ); /* index key */ signed int scdiknum( unsigned char *, /* FoxBASE double */ double ); /* C double */ /********** * * FoxBASE+ Index Key Manipulator Prototypes * **********/ signed int scdikadd( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdikbot( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdikcur( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdikdel( signed int, /* file handle */ void *, /* key string */ signed long ); /* data record number */ signed int scdikfind( signed int, /* file handle */ void *, /* key string */ signed long *, /* data record number */ signed int); /* exact match or first */ signed int scdiknext( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdikprev( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ signed int scdiktop( signed int, /* file handle */ void *, /* key string */ signed long *); /* data record number */ /********** * * dBase3 Memo File Manipulator Prototypes * **********/ signed int scdtclose( signed int ); /* file handle */ signed int scdtcreate(signed char * ); /* filename */ signed int scdtinfo( signed int, /* file handle */ SC_DBTINFO * ); /* file information and status */ signed int scdtopenx( signed int *, /* file handle */ signed char *, /* filename */ signed int ); /* open mode & characteristics */ signed int scdtpack( signed int, /* data file handle */ signed int *); /* memo file handle */ signed int scdtrget( signed int, /* file handle */ signed long, /* record number */ signed char **, /* buffer for record number */ signed int ); /* remove soft carriage returns? */ signed int scdtrput( signed int, /* file handle */ signed long *, /* record number */ signed char *, /* buffer for record data */ signed int ); /* insert soft carriage returns? */ /********** * * External Variables * **********/ extern signed int sc_date_style; /* date string format for scddfget/scddfput */ /********** * * Compatibility Definitions * **********/ #define scdfget(a,b,c) scddfget(a,b,c) #define scdfgetx(a,b,c,d) scddfget(a,b,c) #define scdfgets(a,b,c) scddfgets(a,b,c) #define scdfgetsx(a,b,c,d) scddfgets(a,b,c) #define scdfput(a,b,c) scddfput(a,b,c) #define scdfputx(a,b,c,d) scddfput(a,b,c) #define scdfputs(a,b,c) scddfputs(a,b,c) #define scdfputsx(a,b,c,d) scddfputs(a,b,c) #define scdfinfo(a,b,c) scddfinfo(a,b,c) #define scdfnam2no(a,b,c) scddfnam2no(a,b,c) #define scdrclear(a,b) scddrclear(a) #define scdrdel(a,b) scddrdel(a,b) #define scdrget(a,b) scddrget(a,b) #define scdrinfo(a,b,c,d,e) scddrinfo(a,b,c,d) #define scdrput(a,b,c) scddrput(a,b,c) #define scdrundel(a,b) scddrundel(a,b) #define scdfgett(a,b,c) scdtrget(a,b,c,SC_CRDELETE) #define scdfgettx(a,b,c,d) scdtrget(a,b,c,d) #define scdfputt(a,b,c) scdtrput(a,b,c,66) #define scdfputtx(a,b,c,d) scdtrput(a,b,c,d) #define scdkadd(a,b,c) scdnkadd(a,b,c); #define scdkcur(a,b,c) scdnkcur(a,b,c); #define scdkdate(a,b) scdnkdate(a,b,SC_YMD) #define scdkdatex(a,b,c) scdnkdate(a,b,c) #define scdkdel(a,b,c) scdnkdel(a,b,c) #define scdkfind(a,b,c,d) scdnkfind(a,b,c,d) #define scdkfirst(a,b,c) scdnktop(a,b,c) #define scdklast(a,b,c) scdnkbot(a,b,c) #define scdkmake(a,b,c) scdnkmake(a,b,c) #define scdkmakex(a,b,c,d) scdnkmake(a,b,c) #define scdknext(a,b,c) scdnknext(a,b,c) #define scdkprev(a,b,c) scdnkprev(a,b,c) #define scdnopen(a,b) scdnopenx(a,b,SC_RDWR | SC_FLUSH | SC_EXCLUDE) #define scdpinfo(a,b) scdnbfrsz(a,b,SC_GETSZ) #define scdpnum(a,b) scdnbfrsz(a,b,SC_SETSZ) #define scdtopen(a,b) scdtopenx(a,b,SC_RDWR | SC_FLUSH | SC_EXCLUDE)