gno/sys/fileport/support/SetEOF.c

1 line
2.4 KiB
C

/*
* Copyright (c) Kopriha Software, 1990-1991
* All Rights Reserved
*
* SetEOF.CC
*
* Description:
* This module exists to abstract the data of the file I/O
* primitives of GS/OS.
*
*
* History:Oct 13, 1990 Dave Created this file
*
* Feb 25, 1991 Dave Added I/O buffering
*
* May 26, 1991 Dave Added set EOF
*
* Jun 07, 1991 Dave Broke the single source into lots
* of small sources so we can build
* a library to use...
*
*/
/*
* define DEBUG_CODE
* - add # to define to create the local
* debug code (IE:module)
*/
#ifndef _KS_FILEIO_
#include "ks.fileio.h"
#endif
#pragma noroot
/* ****************************************************************** *
* ks_file_set_eof - Set the end of file of an open file *
* *
* History: May 27, 1991 Dave Created this routine *
* ****************************************************************** */
#undef ROUTINE_NAME
#define ROUTINE_NAME "ks_file_set_eof"
KS_E_ERROR ks_file_set_eof(KS_FILE_PTR file_ptr,
LongWord new_eof)
{
/* ************************************************************** *
* Local declarations: *
* ************************************************************** */
KS_E_ERROR error; /* Holds error codes for subroutines */
ROUTINE_ENTER();
/* ************************************************************** *
* Setup the packet then make the set EOF call... *
* ************************************************************** */
KSf_pkts.position.pCount = 3;
KSf_pkts.position.refNum = file_ptr->refNum;
KSf_pkts.position.base = startPlus;
KSf_pkts.position.displacement = new_eof;
SetEOFGS(&KSf_pkts.position);
/* ************************************************************** *
* Return to our caller. *
* ************************************************************** */
if ((error = GET_ERROR()) != KS_E_SUCCESS)
{
KS_ERROR(error, KS_FILE_ID);
};
KS_SUCCESS();
} /* End of ks_file_set_eof() */