src/fs/rock/RockIoRequests.h

   1 /*
   2  * Copyright (C) 1996-2020 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 #ifndef SQUID_FS_ROCK_IO_REQUESTS_H
  10 #define SQUID_FS_ROCK_IO_REQUESTS_H
  11
  12 #include "DiskIO/ReadRequest.h"
  13 #include "DiskIO/WriteRequest.h"
  14 #include "fs/rock/forward.h"
  15 #include "fs/rock/RockIoState.h"
  16
  17 class DiskFile;
  18
  19 namespace Rock
  20 {
  21
  22 class ReadRequest: public ::ReadRequest
  23 {
  24     CBDATA_CLASS(ReadRequest);
  25
  26 public:
  27     ReadRequest(const ::ReadRequest &, const IoState::Pointer &, const IoXactionId);
  28     IoState::Pointer sio;
  29
  30     /// identifies this read transaction for the requesting IoState
  31     IoXactionId id;
  32 };
  33
  34 class WriteRequest: public ::WriteRequest
  35 {
  36     CBDATA_CLASS(WriteRequest);
  37
  38 public:
  39     WriteRequest(const ::WriteRequest &, const IoState::Pointer &, const IoXactionId);
  40     IoState::Pointer sio;
  41
  42     /* We own these two reserved slots until SwapDir links them into the map. */
  43
  44     /// slot that will point to sidCurrent in the cache_dir map
  45     SlotId sidPrevious;
  46
  47     /// slot being written using this write request
  48     SlotId sidCurrent;
  49
  50     /// identifies this write transaction for the requesting IoState
  51     IoXactionId id;
  52
  53     /// whether this is the last request for the entry
  54     bool eof;
  55 };
  56
  57 } // namespace Rock
  58
  59 #endif /* SQUID_FS_ROCK_IO_REQUESTS_H */
  60