src/store/forward.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_STORE_FORWARD_H
  10 #define SQUID_STORE_FORWARD_H
  11
  12 // bug 4610 see comments 22-38
  13 // Nasty hack, but it turns out C++ allows int32_t to be
  14 // unsigned when used as a bitmask (as sfile* are later)
  15 #if INT_MAX == INT32_MAX
  16 typedef signed int signed_int32_t;
  17 #elif SHORT_MAX == INT32_MAX
  18 typedef signed short int signed_int32_t;
  19 #else
  20 #error I do not know how to typedef a signed 32bit integer.
  21 #endif
  22 typedef signed_int32_t sfileno;
  23 typedef signed int sdirno;
  24
  25 /// maximum number of entries per cache_dir
  26 enum { SwapFilenMax = 0xFFFFFF }; // keep in sync with StoreEntry::swap_filen
  27
  28 /// Store key.
  29 typedef unsigned char cache_key;
  30
  31 class StoreSearch;
  32 class StoreClient;
  33 class StoreEntry;
  34 class MemStore;
  35 class Transients;
  36
  37 namespace Store
  38 {
  39 /// cache "I/O" direction and status
  40 enum IoStatus { ioUndecided, ioWriting, ioReading, ioDone };
  41
  42 class Storage;
  43 class Controller;
  44 class Controlled;
  45 class Disks;
  46 class Disk;
  47 class DiskConfig;
  48 class EntryGuard;
  49
  50 typedef ::StoreEntry Entry;
  51 typedef ::MemStore Memory;
  52 typedef ::Transients Transients;
  53 } // namespace Store
  54
  55 // TODO: Remove these once all code has been transitioned to Store namespace.
  56 typedef Store::Controller StoreController;
  57 typedef Store::Disks StoreHashIndex;
  58 typedef Store::Disk SwapDir;
  59 template <class C> class RefCount;
  60 typedef RefCount<Store::Disk> SwapDirPointer;
  61
  62 #endif /* SQUID_STORE_FORWARD_H */
  63