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120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set ts=4 et sw=4 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_XPTInterfaceInfoManager_h_
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#define mozilla_XPTInterfaceInfoManager_h_
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#include "nsIInterfaceInfoManager.h"
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#include "nsIMemoryReporter.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/Mutex.h"
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#include "mozilla/ReentrantMonitor.h"
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#include "nsDataHashtable.h"
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template<typename T> class nsCOMArray;
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class nsIMemoryReporter;
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struct XPTHeader;
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struct XPTInterfaceDirectoryEntry;
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class xptiInterfaceEntry;
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class xptiInterfaceInfo;
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class xptiTypelibGuts;
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namespace mozilla {
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class XPTInterfaceInfoManager final
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: public nsIInterfaceInfoManager
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, public nsIMemoryReporter
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{
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NS_DECL_THREADSAFE_ISUPPORTS
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NS_DECL_NSIINTERFACEINFOMANAGER
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NS_DECL_NSIMEMORYREPORTER
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public:
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// GetSingleton() is infallible
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static XPTInterfaceInfoManager* GetSingleton();
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static void FreeInterfaceInfoManager();
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void GetScriptableInterfaces(nsCOMArray<nsIInterfaceInfo>& aInterfaces);
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void RegisterBuffer(char *buf, uint32_t length);
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static Mutex& GetResolveLock()
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{
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return GetSingleton()->mResolveLock;
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}
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xptiInterfaceEntry* GetInterfaceEntryForIID(const nsIID *iid);
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf);
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private:
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XPTInterfaceInfoManager();
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~XPTInterfaceInfoManager();
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void InitMemoryReporter();
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void RegisterXPTHeader(XPTHeader* aHeader);
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// idx is the index of this interface in the XPTHeader
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void VerifyAndAddEntryIfNew(XPTInterfaceDirectoryEntry* iface,
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uint16_t idx,
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xptiTypelibGuts* typelib);
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private:
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class xptiWorkingSet
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{
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public:
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xptiWorkingSet();
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~xptiWorkingSet();
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bool IsValid() const;
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void InvalidateInterfaceInfos();
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void ClearHashTables();
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// utility methods...
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enum {NOT_FOUND = 0xffffffff};
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// Directory stuff...
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uint32_t GetDirectoryCount();
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nsresult GetCloneOfDirectoryAt(uint32_t i, nsIFile** dir);
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nsresult GetDirectoryAt(uint32_t i, nsIFile** dir);
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bool FindDirectory(nsIFile* dir, uint32_t* index);
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bool FindDirectoryOfFile(nsIFile* file, uint32_t* index);
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bool DirectoryAtMatchesPersistentDescriptor(uint32_t i, const char* desc);
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private:
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uint32_t mFileCount;
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uint32_t mMaxFileCount;
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public:
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// XXX make these private with accessors
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// mTableMonitor must be held across:
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// * any read from or write to mIIDTable or mNameTable
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// * any writing to the links between an xptiInterfaceEntry
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// and its xptiInterfaceInfo (mEntry/mInfo)
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mozilla::ReentrantMonitor mTableReentrantMonitor;
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nsDataHashtable<nsIDHashKey, xptiInterfaceEntry*> mIIDTable;
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nsDataHashtable<nsDepCharHashKey, xptiInterfaceEntry*> mNameTable;
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};
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// XXX xptiInterfaceInfo want's to poke at the working set itself
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friend class ::xptiInterfaceInfo;
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friend class ::xptiInterfaceEntry;
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friend class ::xptiTypelibGuts;
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xptiWorkingSet mWorkingSet;
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Mutex mResolveLock;
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};
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} // namespace mozilla
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#endif
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