setiocb.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 72 行

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*
*                            Open Watcom Project
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*    This file contains Original Code and/or Modifications of Original
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//
// SETIOCB      : set "i/o statement" in IOCB
//

#include "ftnstd.h"
#include "rundat.h"
#include "units.h"
#include "errcod.h"
#include "rtenv.h"
#include "xfflags.h"

#include <string.h>

extern  void            RTErr(int,...);

extern  void            IOSysInit(void);
extern  void            RTSysInit(void);


void            SetIOCB(void) {
//=========================

    RTSysInit();
    _AccessFIO();
    __XcptFlags |= XF_IO_INTERRUPTABLE;
    IOSysInit();
    if( IOCB->flags & IOF_SETIOCB ) {
        _PartialReleaseFIO();
        return;
    }
    if( IOCB->flags & IOF_ACTIVE ) {
        RTErr( IO_ACTIVE_ALREADY );
    }
    IOCB->fileinfo = NULL;
    IOCB->set_flags = 0;
    IOCB->status = 0;
    IOCB->typ = 0;
    IOCB->flags = IOF_ACTIVE | IOF_SETIOCB;
}