зеркало из https://github.com/mozilla/gecko-dev.git
229 строки
7.6 KiB
C++
229 строки
7.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef __nsRespository_h
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#define __nsRespository_h
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#include "prtypes.h"
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#include "prlog.h"
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#include "prmon.h"
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#include "nsCom.h"
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#include "nsID.h"
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#include "nsError.h"
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#include "nsISupports.h"
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#include "nsIFactory.h"
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#include "nsHashtable.h"
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/*
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* Prototypes for dynamic library export functions
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*/
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class nsIServiceManager;
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//***********************************************************
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//
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// NSGetFactory should take nsISupports instead of nsIServiceManager
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// as the second param. This is done on purpose!! Please don't change
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// it.
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// sudu / stanley
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//
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//***********************************************************
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extern "C" NS_EXPORT nsresult NSGetFactory(nsISupports* serviceMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory **aFactory);
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extern "C" NS_EXPORT PRBool NSCanUnload(nsISupports* serviceMgr);
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extern "C" NS_EXPORT nsresult NSRegisterSelf(nsISupports* serviceMgr, const char *fullpath);
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extern "C" NS_EXPORT nsresult NSUnregisterSelf(nsISupports* serviceMgr, const char *fullpath);
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/*
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*** Quick Registration NOT FOR PUBLIC CONSUMPTION YET ***
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*
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* Quick Registration
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*
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* For quick registration, dlls can define
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* NSQuickRegisterClassData g_NSQuickRegisterData[];
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* and export the symbol "g_NSQuickRegisterData"
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*
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* Quick registration is tried only if the symbol "NSRegisterSelf"
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* is not found. If it is found but fails registration, quick registration
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* will not kick in.
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*
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* The array is terminated by having a NULL last element. Specifically, the
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* array will be assumed to end when
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* (g_NSQuickRegisterData[i].classIdStr == NULL)
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*
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*/
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#define NS_QUICKREGISTER_DATA_SYMBOL "g_NSQuickRegisterData"
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typedef struct NSQuickRegisterClassData {
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const char *CIDString; // {98765-8776-8958758759-958785}
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const char *className; // "Layout Engine"
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const char *progID; // "Gecko.LayoutEngine.1"
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} NSQuickRegisterClassData;
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typedef NSQuickRegisterClassData* NSQuickRegisterData;
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/* Autoregistration will try only files with these extensions.
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* All extensions are case insensitive.
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".dll", // Windows
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".dso", // Unix
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".so", // Unix
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".sl", // Unix: HP
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"_dll", // Mac
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".dlm", // new for all platforms
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*/
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/*
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* Dynamic library export function types
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*/
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typedef nsresult (*nsFactoryProc)(nsISupports* serviceMgr,
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const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory **aFactory);
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typedef PRBool (*nsCanUnloadProc)(nsISupports* serviceMgr);
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typedef nsresult (*nsRegisterProc)(nsISupports* serviceMgr, const char *path);
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typedef nsresult (*nsUnregisterProc)(nsISupports* serviceMgr, const char *path);
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/*
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* Support types
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*/
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class FactoryEntry;
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class nsDllStore;
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class nsDll;
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enum NSRegistrationInstant
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{
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NS_Startup = 0,
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NS_Script = 1,
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NS_Timer = 2
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};
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/* Error codes generated by the repository methods */
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#define NS_XPCOM_ERRORCODE_IS_DIR 1
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/* The separator for each path part in the pathlist for autoregistration */
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#define NS_PATH_SEPARATOR ';'
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/*
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* nsRepository class
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*/
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class NS_COM nsRepository {
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private:
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#define NS_MAX_FILENAME_LEN 1024
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static nsHashtable *factories;
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static PRMonitor *monitor;
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static nsresult checkInitialized(void);
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static nsresult loadFactory(FactoryEntry *aEntry, nsIFactory **aFactory);
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static nsresult SelfRegisterDll(nsDll *dll);
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static nsresult SelfUnregisterDll(nsDll *dll);
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public:
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static nsDllStore *dllStore;
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static nsresult Initialize(void);
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// Finds a factory for a specific class ID
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static nsresult FindFactory(const nsCID &aClass,
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nsIFactory **aFactory);
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// Finds a class ID for a specific Program ID
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static nsresult ProgIDToCLSID(const char *aProgID,
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nsCID *aClass);
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// Finds a Program ID for a specific class ID
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// caller frees the result with delete[]
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static nsresult CLSIDToProgID(nsCID *aClass,
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char* *aClassName,
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char* *aProgID);
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// Creates a class instance for a specific class ID
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static nsresult CreateInstance(const nsCID &aClass,
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nsISupports *aDelegate,
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const nsIID &aIID,
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void **aResult);
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// Convenience routine, creates a class instance for a specific ProgID
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static nsresult CreateInstance(const char *aProgID,
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nsISupports *aDelegate,
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const nsIID &aIID,
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void **aResult);
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// Creates a class instance for a specific class ID
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/*
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static nsresult CreateInstance2(const nsCID &aClass,
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nsISupports *aDelegate,
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const nsIID &aIID,
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void *aSignature,
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void **aResult);
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*/
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// Manually registry a factory for a class
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static nsresult RegisterFactory(const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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nsIFactory *aFactory,
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PRBool aReplace);
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// Manually register a dynamically loaded component.
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static nsresult RegisterComponent(const nsCID &aClass,
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const char *aClassName,
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const char *aProgID,
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const char *aLibrary,
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PRBool aReplace,
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PRBool aPersist);
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// Manually unregister a factory for a class
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static nsresult UnregisterFactory(const nsCID &aClass,
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nsIFactory *aFactory);
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// Manually unregister a dynamically loaded factory for a class
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static nsresult UnregisterFactory(const nsCID &aClass,
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const char *aLibrary);
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// Manually unregister a dynamically loaded component
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static nsresult UnregisterComponent(const nsCID &aClass,
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const char *aLibrary);
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// Unload dynamically loaded factories that are not in use
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static nsresult FreeLibraries(void);
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// DLL registration support
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static nsresult AutoRegister(NSRegistrationInstant when,
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const char* pathlist);
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// Pathlist is a semicolon separated list of pathnames
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static nsresult AddToDefaultPathList(const char *pathlist);
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static nsresult SyncComponentsInPathList(const char *pathlist);
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static nsresult SyncComponentsInDir(const char *path);
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static nsresult SyncComponentsInFile(const char *fullname);
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};
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#endif
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