dom/asmjscache/AsmJSCache.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_asmjscache_asmjscache_h
   8 #define mozilla_dom_asmjscache_asmjscache_h
   9
  10 #include "ipc/IPCMessageUtils.h"
  11 #include "js/TypeDecls.h"
  12 #include "js/Vector.h"
  13
  14 class nsIPrincipal;
  15
  16 namespace mozilla {
  17 namespace dom {
  18
  19 namespace quota {
  20 class Client;
  21 }
  22
  23 namespace asmjscache {
  24
  25 class PAsmJSCacheEntryChild;
  26 class PAsmJSCacheEntryParent;
  27
  28 enum OpenMode
  29 {
  30   eOpenForRead,
  31   eOpenForWrite,
  32   NUM_OPEN_MODES
  33 };
  34
  35 // Implementation of AsmJSCacheOps, installed by nsJSEnvironment:
  36
  37 bool
  38 OpenEntryForRead(JS::Handle<JSObject*> aGlobal,
  39                  const jschar* aBegin,
  40                  const jschar* aLimit,
  41                  size_t* aSize,
  42                  const uint8_t** aMemory,
  43                  intptr_t *aHandle);
  44 void
  45 CloseEntryForRead(JS::Handle<JSObject*> aGlobal,
  46                   size_t aSize,
  47                   const uint8_t* aMemory,
  48                   intptr_t aHandle);
  49 bool
  50 OpenEntryForWrite(JS::Handle<JSObject*> aGlobal,
  51                   const jschar* aBegin,
  52                   const jschar* aEnd,
  53                   size_t aSize,
  54                   uint8_t** aMemory,
  55                   intptr_t* aHandle);
  56 void
  57 CloseEntryForWrite(JS::Handle<JSObject*> aGlobal,
  58                    size_t aSize,
  59                    uint8_t* aMemory,
  60                    intptr_t aHandle);
  61 bool
  62 GetBuildId(js::Vector<char>* aBuildId);
  63
  64 // Called from QuotaManager.cpp:
  65
  66 quota::Client*
  67 CreateClient();
  68
  69 // Called from ipc/ContentParent.cpp:
  70
  71 PAsmJSCacheEntryParent*
  72 AllocEntryParent(OpenMode aOpenMode, uint32_t aSizeToWrite,
  73                  nsIPrincipal* aPrincipal);
  74
  75 void
  76 DeallocEntryParent(PAsmJSCacheEntryParent* aActor);
  77
  78 // Called from ipc/ContentChild.cpp:
  79
  80 void
  81 DeallocEntryChild(PAsmJSCacheEntryChild* aActor);
  82
  83 } // namespace asmjscache
  84 } // namespace dom
  85 } // namespace mozilla
  86
  87 namespace IPC {
  88
  89 template <>
  90 struct ParamTraits<mozilla::dom::asmjscache::OpenMode> :
  91   public EnumSerializer<mozilla::dom::asmjscache::OpenMode,
  92                         mozilla::dom::asmjscache::eOpenForRead,
  93                         mozilla::dom::asmjscache::NUM_OPEN_MODES>
  94 { };
  95
  96 } // namespace IPC
  97
  98 #endif  // mozilla_dom_asmjscache_asmjscache_h