Dbxclose()
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Revision as of 14:17, 1 April 2009 by Yvonnemilne (Talk | contribs)
PURPOSE
close an open tagged index file
SYNOPSIS
#include "dbl.h" int dbxclose(dbx); <input parameters> char *dbx; /* Tagged index file descriptor */ <output parameters> none
RETURN VALUE
The dbxclose() function returns 0 for success, or < 0 if an error occurs. See the section on return code values for a detailed list of return codes.
DESCRIPTION
The dbxclose() function is used to close the tagged index file, .DBX specified in the file descriptor.
EXAMPLE
The following example creates a tag on the VESSEL field for the shipwreck.dbf table, then closes the index and the table.
#include <stdio.h> #include "dbl.h" /* Recital/Library include file */ #include "dblproto.h" /* Recital/Library prototype file */ static dBFIELD fields[6] = { "VESSEL", 'C', 18, 0, 0, "LAT", 'N', 4, 1, 0, "LONG", 'N', 4, 1, 0, "AMOUNT", 'N', 10, 0, 0, "DATE", 'D', 8, 0, 0, "FLAG", 'C', 9, 0, 0 }; static void errorproc( char *func, char *str, int rc); main() { int rc; /* Return Code for error handling */ char *dbf; /* File descriptor for table */ char *dbx; /* File descriptor for tagged index */ rc = dbdcache(100); errorproc("dbdcache()","table cache specified.", rc); rc = dbicache(100); errorproc("dbicache()", "index cache specified.",rc); rc = dbfilemode(0,0); rc = dbopen("shipwreck.dbf", &dbf); errorproc("dbopen()","table opened in exclusive mode.", rc); rc = dbxcreate( dbf, fields[0].fieldnm, /* "VESSEL", */ &dbx, fields[0].fieldnm, /* "VESSEL", */ NULL, 0, 0); errorproc("dbxcreate()","tag created", rc); rc = dbxclose(dbx); errorproc("dbxclose()", "tagged index closed.", rc); rc = dbclose(dbf); errorproc("dbclose()", "table closed.", rc); exit(0); } static void errorproc(func, str, rc) char *func; char *str; int rc; { if ( rc != SUCCESS ) { printf("n Error performing function %s -> %dn", func, rc); exit(1); } printf("Function: t%s, t%s - Okn", func, str); return; }