LCOV - code coverage report
Current view: top level - xpcom/reflect/xptinfo - XPTInterfaceInfoManager.h (source / functions) Hit Total Coverage
Test: output.info Lines: 2 2 100.0 %
Date: 2017-07-14 16:53:18 Functions: 1 1 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* vim: set ts=4 et sw=4 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
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef mozilla_XPTInterfaceInfoManager_h_
       8             : #define mozilla_XPTInterfaceInfoManager_h_
       9             : 
      10             : #include "nsIInterfaceInfoManager.h"
      11             : #include "nsIMemoryReporter.h"
      12             : 
      13             : #include "mozilla/MemoryReporting.h"
      14             : #include "mozilla/Mutex.h"
      15             : #include "mozilla/ReentrantMonitor.h"
      16             : #include "nsDataHashtable.h"
      17             : 
      18             : template<typename T> class nsCOMArray;
      19             : class nsIMemoryReporter;
      20             : struct XPTHeader;
      21             : struct XPTInterfaceDirectoryEntry;
      22             : class xptiInterfaceEntry;
      23             : class xptiInterfaceInfo;
      24             : class xptiTypelibGuts;
      25             : 
      26             : namespace mozilla {
      27             : 
      28             : class XPTInterfaceInfoManager final
      29             :     : public nsIInterfaceInfoManager
      30             :     , public nsIMemoryReporter
      31             : {
      32             :     NS_DECL_THREADSAFE_ISUPPORTS
      33             :     NS_DECL_NSIINTERFACEINFOMANAGER
      34             :     NS_DECL_NSIMEMORYREPORTER
      35             : 
      36             : public:
      37             :     // GetSingleton() is infallible
      38             :     static XPTInterfaceInfoManager* GetSingleton();
      39             :     static void FreeInterfaceInfoManager();
      40             : 
      41             :     void GetScriptableInterfaces(nsCOMArray<nsIInterfaceInfo>& aInterfaces);
      42             : 
      43             :     void RegisterBuffer(char *buf, uint32_t length);
      44             : 
      45         386 :     static Mutex& GetResolveLock()
      46             :     {
      47         386 :         return GetSingleton()->mResolveLock;
      48             :     }
      49             : 
      50             :     xptiInterfaceEntry* GetInterfaceEntryForIID(const nsIID *iid);
      51             : 
      52             :     size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
      53             : 
      54             : private:
      55             :     XPTInterfaceInfoManager();
      56             :     ~XPTInterfaceInfoManager();
      57             : 
      58             :     void InitMemoryReporter();
      59             : 
      60             :     void RegisterXPTHeader(XPTHeader* aHeader);
      61             : 
      62             :     // idx is the index of this interface in the XPTHeader
      63             :     void VerifyAndAddEntryIfNew(XPTInterfaceDirectoryEntry* iface,
      64             :                                 uint16_t idx,
      65             :                                 xptiTypelibGuts* typelib);
      66             : 
      67             : private:
      68             : 
      69             :     class xptiWorkingSet
      70             :     {
      71             :     public:
      72             :         xptiWorkingSet();
      73             :         ~xptiWorkingSet();
      74             : 
      75             :         bool IsValid() const;
      76             : 
      77             :         void InvalidateInterfaceInfos();
      78             :         void ClearHashTables();
      79             : 
      80             :         // utility methods...
      81             : 
      82             :         enum {NOT_FOUND = 0xffffffff};
      83             : 
      84             :         // Directory stuff...
      85             : 
      86             :         uint32_t GetDirectoryCount();
      87             :         nsresult GetCloneOfDirectoryAt(uint32_t i, nsIFile** dir);
      88             :         nsresult GetDirectoryAt(uint32_t i, nsIFile** dir);
      89             :         bool     FindDirectory(nsIFile* dir, uint32_t* index);
      90             :         bool     FindDirectoryOfFile(nsIFile* file, uint32_t* index);
      91             :         bool     DirectoryAtMatchesPersistentDescriptor(uint32_t i, const char* desc);
      92             : 
      93             :     private:
      94             :         uint32_t        mFileCount;
      95             :         uint32_t        mMaxFileCount;
      96             : 
      97             :     public:
      98             :         // XXX make these private with accessors
      99             :         // mTableMonitor must be held across:
     100             :         //  * any read from or write to mIIDTable or mNameTable
     101             :         //  * any writing to the links between an xptiInterfaceEntry
     102             :         //    and its xptiInterfaceInfo (mEntry/mInfo)
     103             :         mozilla::ReentrantMonitor mTableReentrantMonitor;
     104             :         nsDataHashtable<nsIDHashKey, xptiInterfaceEntry*> mIIDTable;
     105             :         nsDataHashtable<nsDepCharHashKey, xptiInterfaceEntry*> mNameTable;
     106             :     };
     107             : 
     108             :     // XXX xptiInterfaceInfo want's to poke at the working set itself
     109             :     friend class ::xptiInterfaceInfo;
     110             :     friend class ::xptiInterfaceEntry;
     111             :     friend class ::xptiTypelibGuts;
     112             : 
     113             :     xptiWorkingSet               mWorkingSet;
     114             :     Mutex                        mResolveLock;
     115             : };
     116             : 
     117             : } // namespace mozilla
     118             : 
     119             : #endif

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