From 16f504a9dca3fe3b70568f67b7d41241ae485288 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:49:04 +0200 Subject: Adding upstream version 7.0.6-dfsg. Signed-off-by: Daniel Baumann --- .../xpcom18a4/xpcom/components/nsCategoryManager.h | 159 +++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 src/libs/xpcom18a4/xpcom/components/nsCategoryManager.h (limited to 'src/libs/xpcom18a4/xpcom/components/nsCategoryManager.h') diff --git a/src/libs/xpcom18a4/xpcom/components/nsCategoryManager.h b/src/libs/xpcom18a4/xpcom/components/nsCategoryManager.h new file mode 100644 index 00000000..a5cdb59a --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/components/nsCategoryManager.h @@ -0,0 +1,159 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is mozilla.org code. + * + * The Initial Developer of the Original Code is + * Netscape Communications Corporation. + * Portions created by the Initial Developer are Copyright (C) 1998 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * + * Alternatively, the contents of this file may be used under the terms of + * either of the GNU General Public License Version 2 or later (the "GPL"), + * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ + + +#ifndef NSCATEGORYMANAGER_H +#define NSCATEGORYMANAGER_H + +#include "prio.h" +#include "prlock.h" +#include "plarena.h" +#include "nsClassHashtable.h" +#include "nsICategoryManager.h" + +#define NS_CATEGORYMANAGER_CLASSNAME "Category Manager" + +/* 16d222a6-1dd2-11b2-b693-f38b02c021b2 */ +#define NS_CATEGORYMANAGER_CID \ +{ 0x16d222a6, 0x1dd2, 0x11b2, \ + {0xb6, 0x93, 0xf3, 0x8b, 0x02, 0xc0, 0x21, 0xb2} } + +/** + * a "leaf-node", managed by the nsCategoryNode hashtable. + * + * we need to keep a "persistent value" (which will be written to the registry) + * and a non-persistent value (for the current runtime): these are usually + * the same, except when aPersist==PR_FALSE. The strings are permanently arena- + * allocated, and will never go away. + */ +class CategoryLeaf : public nsDepCharHashKey +{ +public: + CategoryLeaf(const char* aKey) + : nsDepCharHashKey(aKey), + pValue(nsnull), + nonpValue(nsnull) { } + const char* pValue; + const char* nonpValue; +}; + + +/** + * CategoryNode keeps a hashtable of it's entries. + * the CategoryNode itself is permanently allocated in + * the arena. + */ +class CategoryNode +{ +public: + NS_METHOD GetLeaf(const char* aEntryName, + char** _retval); + + NS_METHOD AddLeaf(const char* aEntryName, + const char* aValue, + PRBool aPersist, + PRBool aReplace, + char** _retval, + PLArenaPool* aArena); + + NS_METHOD DeleteLeaf(const char* aEntryName, + PRBool aDontPersist); + + void Clear() { + PR_Lock(mLock); + mTable.Clear(); + PR_Unlock(mLock); + } + + PRUint32 Count() { + PR_Lock(mLock); + PRUint32 tCount = mTable.Count(); + PR_Unlock(mLock); + return tCount; + } + + NS_METHOD Enumerate(nsISimpleEnumerator** _retval); + + PRBool WritePersistentEntries(PRFileDesc* fd, const char* aCategoryName); + + // CategoryNode is arena-allocated, with the strings + static CategoryNode* Create(PLArenaPool* aArena); + ~CategoryNode(); + void operator delete(void*) { } + +private: + CategoryNode() : mLock(nsnull) { } + void* operator new(size_t aSize, PLArenaPool* aArena); + + nsTHashtable mTable; + PRLock* mLock; +}; + + +/** + * The main implementation of nsICategoryManager. + * + * This implementation is thread-safe. + */ +class nsCategoryManager + : public nsICategoryManager +{ +public: + NS_DECL_ISUPPORTS + NS_DECL_NSICATEGORYMANAGER + + /** + * Write the categories to the XPCOM persistent registry. + * This is to be used by nsComponentManagerImpl (and NO ONE ELSE). + */ + NS_METHOD WriteCategoryManagerToRegistry(PRFileDesc* fd); + + nsCategoryManager() : mLock(nsnull) { } +private: + friend class nsCategoryManagerFactory; + static nsCategoryManager* Create(); + + ~nsCategoryManager(); + + CategoryNode* get_category(const char* aName); + + PLArenaPool mArena; + nsClassHashtable mTable; + PRLock* mLock; +}; + +#endif -- cgit v1.2.3