fcbdup.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 85 行

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*                            Open Watcom Project
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*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
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*    This file contains Original Code and/or Modifications of Original
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#include <stdio.h>
#include <string.h>
#include "vi.h"

/*
 * duplicateFcb - do just that
 */
static void duplicateFcb( fcb *cfcb, fcb **dfcb )
{
    line        *cline,*nline;

    /*
     * get fcb and create a new one
     */
    FetchFcb( cfcb );
    cfcb->non_swappable = TRUE;
    *dfcb = FcbAlloc( NULL );
    (*dfcb)->start_line = cfcb->start_line;
    (*dfcb)->end_line = cfcb->end_line;
    (*dfcb)->byte_cnt = cfcb->byte_cnt;
    (*dfcb)->line_head = (*dfcb)->line_tail = NULL;

    /*
     * copy all lines
     */
    cline = cfcb->line_head;
    while( cline != NULL ) {
        nline = LineAlloc( cline->data, cline->len );
        AddLLItemAtEnd( (ss**)&((*dfcb)->line_head), (ss**)&((*dfcb)->line_tail), (ss*)nline );
        cline = cline->next;
    }

    cfcb->non_swappable = FALSE;
    (*dfcb)->non_swappable = FALSE;

} /* duplicateFcb */

/*
 * CreateDuplicateFcbList - duplicate a list of fcb's
 */
void CreateDuplicateFcbList( fcb *sfcb, fcb **head, fcb **tail )
{
    fcb *cfcb,*xfcb;

    cfcb = sfcb;
    while( cfcb != NULL ) {
        duplicateFcb( cfcb, &xfcb );
        AddLLItemAtEnd( (ss**)head, (ss**)tail, (ss*)xfcb );
        cfcb = cfcb->next;
    }

} /* CreateDuplicateFcbList */