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33bb32f549
This patch was automatically generated using the following script:
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find . \
! -wholename "*/.git*" \
! -wholename "obj-ff-dbg*" \
-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
-o -iname "*.idl" \
-o -iname "*.ipdl" \
-o -iname "*.ipdlh" \
-o -iname "*.mm" \) | \
xargs -n 1 sed -i -e "s/\b$1\b/$2/g"
}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
103 lines
2.5 KiB
C++
103 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 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 nsCategoryCache_h_
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#define nsCategoryCache_h_
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#include "mozilla/Attributes.h"
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#include "nsICategoryManager.h"
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#include "nsIObserver.h"
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#include "nsISimpleEnumerator.h"
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#include "nsISupportsPrimitives.h"
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#include "nsServiceManagerUtils.h"
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsInterfaceHashtable.h"
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#include "nsXPCOM.h"
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class nsCategoryObserver final : public nsIObserver
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{
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~nsCategoryObserver();
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public:
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explicit nsCategoryObserver(const char* aCategory);
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void ListenerDied();
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nsInterfaceHashtable<nsCStringHashKey, nsISupports>& GetHash()
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{
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return mHash;
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}
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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private:
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void RemoveObservers();
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nsInterfaceHashtable<nsCStringHashKey, nsISupports> mHash;
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nsCString mCategory;
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bool mObserversRemoved;
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};
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/**
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* This is a helper class that caches services that are registered in a certain
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* category. The intended usage is that a service stores a variable of type
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* nsCategoryCache<nsIFoo> in a member variable, where nsIFoo is the interface
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* that these services should implement. The constructor of this class should
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* then get the name of the category.
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*/
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template<class T>
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class nsCategoryCache final
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{
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public:
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explicit nsCategoryCache(const char* aCategory)
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: mCategoryName(aCategory)
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{
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}
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~nsCategoryCache()
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{
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if (mObserver) {
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mObserver->ListenerDied();
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}
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}
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void GetEntries(nsCOMArray<T>& aResult)
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{
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// Lazy initialization, so that services in this category can't
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// cause reentrant getService (bug 386376)
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if (!mObserver) {
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mObserver = new nsCategoryObserver(mCategoryName.get());
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}
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mObserver->GetHash().EnumerateRead(EntriesToArray, &aResult);
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}
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private:
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// Not to be implemented
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nsCategoryCache(const nsCategoryCache<T>&);
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static PLDHashOperator EntriesToArray(const nsACString& aKey,
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nsISupports* aEntry, void* aArg)
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{
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nsCOMArray<T>& entries = *static_cast<nsCOMArray<T>*>(aArg);
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nsCOMPtr<T> service = do_QueryInterface(aEntry);
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if (service) {
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entries.AppendObject(service);
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}
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return PL_DHASH_NEXT;
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}
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nsCString mCategoryName;
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nsRefPtr<nsCategoryObserver> mObserver;
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};
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#endif
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