lfflush.c File Reference

#include <xinu.h>

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Functions
status	lfflush (struct lflcblk *lfptr)

Function Documentation

lfflush()

status lfflush

(

struct lflcblk *

lfptr

)

Definition at line 10 of file lfflush.c.

References FALSE, LF_AREA_DIR, Lf_data, lfdata::lf_dir, lfdata::lf_dirdirty, lfdata::lf_dskdev, LF_FREE, lflcblk::lfdbdirty, lflcblk::lfdblock, lflcblk::lfdnum, lflcblk::lfibdirty, lflcblk::lfiblock, lfibput(), lflcblk::lfinum, lflcblk::lfstate, OK, SYSERR, and write().

Referenced by lflclose(), lfsetup(), and lftruncate().

{

    if (lfptr->lfstate == LF_FREE) {
        return SYSERR;
    }

    /* Write the directory if it has changed */

    if (Lf_data.lf_dirdirty) {
        write(Lf_data.lf_dskdev, (char *)&Lf_data.lf_dir,
                            LF_AREA_DIR);
        Lf_data.lf_dirdirty = FALSE;
    }

    /* Write data block if it has changed */

    if (lfptr->lfdbdirty) {
        write(Lf_data.lf_dskdev, lfptr->lfdblock, lfptr->lfdnum);
        lfptr->lfdbdirty = FALSE;
    }

    /* Write i-block if it has changed */

    if (lfptr->lfibdirty) {
        lfibput(Lf_data.lf_dskdev, lfptr->lfinum, &lfptr->lfiblock);
        lfptr->lfibdirty = FALSE;
    }
    
    return OK;
}

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