Archipelago » blktap-utils

/* Copyright (c) 2007, XenSource Inc.

 * All rights reserved.

 */

#ifndef TAPDISK_FILTER_H

#define TAPDISK_FILTER_H

#include <libaio.h>

#include <inttypes.h>

#include <time.h>

#define TD_INJECT_FAULTS     0x00001  /* simulate random IO failures */

#define TD_CHECK_INTEGRITY   0x00002  /* check data integrity */

#define TD_FAULT_RATE        5

struct dhash {

        uint64_t             hash;

        struct timeval       time;

};

struct fiocb {

        size_t               bytes;

        void                *data;

};

struct tfilter {

        int                  mode;

        uint64_t             secs;

        int                  iocbs;

        struct dhash        *dhash;

        int                  ffree;

        struct fiocb        *fiocbs;

        struct fiocb       **flist;

};

struct tfilter *tapdisk_init_tfilter(int mode, int iocbs, uint64_t secs);

void tapdisk_free_tfilter(struct tfilter *);

void tapdisk_filter_iocbs(struct tfilter *, struct iocb **, int);

void tapdisk_filter_events(struct tfilter *, struct io_event *, int);

#endif