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LSSYNC.C
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1989-08-30
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/* Copyright (c) 1989 Citadel */
/* All Rights Reserved */
/* #ident "lssync.c 1.1 - 89/07/03" */
#include <blkio.h>
#include <errno.h>
#include "lseq_.h"
/*man---------------------------------------------------------------------------
NAME
lssync - lseq synchronize
SYNOPSIS
#include <lseq.h>
int lssync(lsp);
lseq_t *lsp;
DESCRIPTION
The lssync function causes any buffered data for the named lseq to
be written to the file. The lseq remains open and the buffer contents
remain intact.
lssync will fail if one or more of the following is true:
[EINVAL] lsp is not a valid lseq pointer.
[LSENOPEN] lsp is not open.
SEE ALSO
lsclose, lslock, lssetbuf, lssetvbuf.
DIAGNOSTICS
Upon successful completion, a value of 0 is returned. Otherwise, a
value of -1 is returned, and errno set to indicate the error.
------------------------------------------------------------------------------*/
int lssync(lsp)
lseq_t *lsp;
{
int rs = 0;
errno = 0;
/* validate arguments */
if (!ls_valid(lsp)) {
errno = EINVAL;
return -1;
}
/* check if not open */
if (!(lsp->flags & LSOPEN)) {
errno = LSENOPEN;
return -1;
}
/* synchronize file with buffers */
rs = bsync(lsp->bp);
if (rs == -1) {
LSEPRINT;
return -1;
}
errno = 0;
return 0;
}