ioutls.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 95 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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*    NON-INFRINGEMENT. Please see the License for the specific language
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*  ========================================================================
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
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****************************************************************************/


//
// IOUTLS    : utilities for io processing
//

#include "ftnstd.h"
#include "iodefs.h"
#include "iortncon.h"
#include "global.h"

extern  void            GSetIOCB(void);
extern  bool            Already(int);


void    InitIO(void) {
//================

    IOData = 0;
    GSetIOCB();
}


void    FiniIO(void) {
//================

}


uint    IOIndex(void) {
//=================

    switch( StmtProc ) {
    case PR_READ:       return( EX_READ );
    case PR_PRINT:      return( EX_WRITE );
    case PR_WRITE:      return( EX_WRITE );
    case PR_OPEN:       return( EX_OPEN );
    case PR_CLOSE:      return( EX_CLOSE );
    case PR_BKSP:       return( EX_BK_SPACE );
    case PR_EFILE:      return( EX_END_FILE );
    case PR_REW:        return( EX_REWIND );
    }
    return( EX_INQUIRE );
}


uint    AuxIOStmt(void) {
//===================

    switch( StmtProc ) {
    case PR_READ:
    case PR_PRINT:
    case PR_WRITE:
        return( FALSE );
    }
    return( TRUE );
}


bool    NotFormatted(void) {
//======================

    return( !Already( IO_FMT ) );
}