lfsinit.c

Go to the documentation of this file.

/* lfsinit.c - lfsinit */

#include <xinu.h>

struct  lfdata  Lf_data;

/*------------------------------------------------------------------------
 * lfsinit  -  Initialize the local file system master device
 *------------------------------------------------------------------------
 */
devcall lfsinit (
      struct dentry *devptr     /* Entry in device switch table */
    )
{
    /* Assign ID of disk device that will be used */

    Lf_data.lf_dskdev = LF_DISK_DEV;

    /* Create a mutual exclusion semaphore */

    Lf_data.lf_mutex = semcreate(1);

    /* Zero directory area (for debugging) */

    memset((char *)&Lf_data.lf_dir, NULLCH, sizeof(struct lfdir));

    /* Initialize directory to "not present" in memory */

    Lf_data.lf_dirpresent = Lf_data.lf_dirdirty = FALSE;

    return OK;
}