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Cream of the Crop 1
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Cream of the Crop 1.iso
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PROGRAM
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CBASE102.ARJ
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CBCLOSE.C
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1991-09-23
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/* Copyright (c) 1989 Citadel */
/* All Rights Reserved */
/* #ident "@(#)cbclose.c 1.5 - 91/09/23" */
#include <ansi.h>
/* ansi headers */
#include <errno.h>
#ifdef AC_STRING
#include <string.h>
#endif
/* library headers */
#include <btree.h>
#include <lseq.h>
/* local headers */
#include "cbase_.h"
/*man---------------------------------------------------------------------------
NAME
cbclose - close cbase
SYNOPSIS
#include <cbase.h>
int cbclose(cbp)
cbase_t *cbp;
DESCRIPTION
The cbclose function causes any buffered data for cbase cbp to be
written out and the cbase to be unlocked and closed.
cbclose will fail if one or more of the following is true:
[EINVAL] cbp is not a valid cbase pointer.
[CBENOPEN] cbp is not open.
SEE ALSO
cbcreate, cbopen, cbsync.
DIAGNOSTICS
Upon successful completion, a value of 0 is returned. Otherwise,
a value of -1 is returned, and errno set to indicate the error.
------------------------------------------------------------------------------*/
#ifdef AC_PROTO
int cbclose(cbase_t *cbp)
#else
int cbclose(cbp)
cbase_t *cbp;
#endif
{
int i = 0;
/* validate arguments */
if (!cb_valid(cbp)) {
errno = EINVAL;
return -1;
}
/* check if not open */
if (!(cbp->flags & CBOPEN)) {
errno = CBENOPEN;
return -1;
}
/* flush buffers and unlock file */
if (cblock(cbp, CB_UNLCK) == -1) {
CBEPRINT;
return -1;
}
/* close record file */
if (lsclose(cbp->lsp) == -1) {
CBEPRINT;
return -1;
}
/* close key files */
for (i = 0; i < cbp->fldc; ++i) {
if (cbp->fldv[i].flags & CB_FKEY) {
if (btclose(cbp->btpv[i]) == -1) {
CBEPRINT;
return -1;
}
}
}
/* free memory allocated for cbase */
cb_freemem(cbp);
/* scrub slot in cbb table then free it */
memset(cbp, 0, sizeof(*cbb));
cbp->flags = 0;
return 0;
}