fsdev/qemu-fsdev-throttle.h

   1 /*
   2  * Fsdev Throttle
   3  *
   4  * Copyright (C) 2016 Huawei Technologies Duesseldorf GmbH
   5  *
   6  * Author: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
   7  *
   8  * This work is licensed under the terms of the GNU GPL, version 2 or
   9  * (at your option) any later version.
  10  *
  11  * See the COPYING file in the top-level directory for details.
  12  *
  13  */
  14
  15 #ifndef QEMU_FSDEV_THROTTLE_H
  16 #define QEMU_FSDEV_THROTTLE_H
  17
  18 #include "block/aio.h"
  19 #include "qemu/coroutine.h"
  20 #include "qemu/throttle.h"
  21
  22 typedef struct FsThrottle {
  23     ThrottleState ts;
  24     ThrottleTimers tt;
  25     ThrottleConfig cfg;
  26     CoQueue      throttled_reqs[THROTTLE_MAX];
  27 } FsThrottle;
  28
  29 int fsdev_throttle_parse_opts(QemuOpts *, FsThrottle *, Error **);
  30
  31 void fsdev_throttle_init(FsThrottle *);
  32
  33 void coroutine_fn fsdev_co_throttle_request(FsThrottle *, ThrottleDirection ,
  34                                             struct iovec *, int);
  35
  36 void fsdev_throttle_cleanup(FsThrottle *);
  37
  38 #endif /* QEMU_FSDEV_THROTTLE_H */