Difference between revisions of "Dbxakey()"
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| Line 12: | Line 12: | ||
<input parameters> | <input parameters> | ||
| − | char *dbx; /* Tagged index file descriptor */ | + | char *dbx; /* Tagged index file descriptor */ |
| − | long recno; /* Record number | + | long recno; /* Record number */ |
<output parameters> | <output parameters> | ||
| Line 40: | Line 40: | ||
<code lang="c"> | <code lang="c"> | ||
#include <stdio.h> | #include <stdio.h> | ||
| − | #include "dbl.h" | + | #include "dbl.h" /* Recital/Library include file */ |
| − | #include "dblproto.h" /* Recital/Library prototype file */ | + | #include "dblproto.h" /* Recital/Library prototype file */ |
static dBFIELD fields[6] = { | static dBFIELD fields[6] = { | ||
| Line 58: | Line 58: | ||
static char *text_table[] = { | static char *text_table[] = { | ||
| − | "Santa Margarita | + | "Santa Margarita 80.027.5 7000000 95/01/01 Spanish ", |
| − | "Santa Rosa | + | "Santa Rosa 81.824.8 30000000 32/01/01 Spanish ", |
| − | "Unknown galleon | + | "Unknown galleon 83.123.0 0 15/01/01 Spanish ", |
| − | "Jessie | + | "Jessie 97.127.4 100000 75/01/01 U.S. ", |
| − | "Lea | + | "Lea 96.227.8 1000000 80/01/01 U.S. ", |
| − | "S.J. Lee | + | "S.J. Lee 96.926.9 200000 75/01/01 U.S. ", |
| − | "Genovase | + | "Genovase 78.418.4 1850000 30/01/01 Spanish ", |
| − | "Unknown Vessel | + | "Unknown Vessel 77.517.9 075 /01/01 U.S. " |
}; | }; | ||
main() | main() | ||
{ | { | ||
| − | int rc; | + | int rc; /* Return Code for error handling */ |
| − | char *dbf; /* File descriptor for table | + | char *dbf; /* File descriptor for table */ |
| − | char *dbx; /* File descriptor for tagged index */ | + | char *dbx; /* File descriptor for tagged index */ |
| − | int i; | + | int i; /* Loop control variable */ |
| − | long recno; /* Table record variable | + | long recno; /* Table record variable */ |
rc = dbdcache(100); | rc = dbdcache(100); | ||
| Line 117: | Line 117: | ||
{ | { | ||
if ( rc != SUCCESS ) { | if ( rc != SUCCESS ) { | ||
| − | + | printf("\n Error performing function %s -> %d\n", func, rc); | |
| − | + | exit(1); | |
} | } | ||
| − | printf("Function: t%s, t%s - | + | printf("Function: \t%s, \t%s - Ok\n", func, str); |
return; | return; | ||
} | } | ||
Revision as of 16:16, 1 May 2009
PURPOSE
add keys to all tags in the tagged index file
SYNOPSIS
#include "dbl.h" int dbxakey(dbx, recno); <input parameters> char *dbx; /* Tagged index file descriptor */ long recno; /* Record number */ <output parameters> none
RETURN VALUE
The dbxakey() 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 dbxakey() function adds a key to each index tag in the tagged index file, .DBX for the record number specified.
EXAMPLE
The following example opens the table and tag index, locks the table and tag index, adds in records, flushes the buffers, then unlocks and closes the files.
#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); static char *text_table[] = { "Santa Margarita 80.027.5 7000000 95/01/01 Spanish ", "Santa Rosa 81.824.8 30000000 32/01/01 Spanish ", "Unknown galleon 83.123.0 0 15/01/01 Spanish ", "Jessie 97.127.4 100000 75/01/01 U.S. ", "Lea 96.227.8 1000000 80/01/01 U.S. ", "S.J. Lee 96.926.9 200000 75/01/01 U.S. ", "Genovase 78.418.4 1850000 30/01/01 Spanish ", "Unknown Vessel 77.517.9 075 /01/01 U.S. " }; main() { int rc; /* Return Code for error handling */ char *dbf; /* File descriptor for table */ char *dbx; /* File descriptor for tagged index */ int i; /* Loop control variable */ long recno; /* Table record variable */ rc = dbdcache(100); errorproc("dbdcache()","table cache specified.", rc); rc = dbicache(100); errorproc("dbicache()", "index cache specified.",rc); rc = dbfilemode(1,0); rc = dbopen("shipwreck.dbf", &dbf); errorproc("dbopen()","table opened in shared mode.", rc); rc = dbxopen(dbf, "shipwreck.dbx", &dbx); errorproc("dbxopen()","tagged index opened.", rc); for( i = 1; i <= 7; i++) { rc = dbappend(dbf, text_table[i], &recno); errorproc("dbappend()", "record appended.", rc); rc = dbxlocki(dbx); errorproc("dbxlocki()", "tagged index file locked.", rc); rc = dbxakey(dbx, recno); errorproc("dbxakey()", "key added.", rc); rc = dbxunlocki(dbx); errorproc("dbxunlocki()", "tagged index file unlocked.", rc); } rc = dbflush(dbf); errorproc("dbflush()", "table cache flushed.", rc); rc = dbxflsh(dbx); errorproc("dbxflsh()", "Tagged index cache flushed.", 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 -> %d\n", func, rc); exit(1); } printf("Function: \t%s, \t%s - Ok\n", func, str); return; }
SEE ALSO
dbappend(), dbxclose(), dbxflsh(), dbxlocki(), dbxopen(), dbxunlocki()
