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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:49:04 +0000 |
commit | 16f504a9dca3fe3b70568f67b7d41241ae485288 (patch) | |
tree | c60f36ada0496ba928b7161059ba5ab1ab224f9d /src/libs/xpcom18a4/xpcom/components/xcDll.h | |
parent | Initial commit. (diff) | |
download | virtualbox-upstream.tar.xz virtualbox-upstream.zip |
Adding upstream version 7.0.6-dfsg.upstream/7.0.6-dfsgupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/libs/xpcom18a4/xpcom/components/xcDll.h')
-rw-r--r-- | src/libs/xpcom18a4/xpcom/components/xcDll.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/components/xcDll.h b/src/libs/xpcom18a4/xpcom/components/xcDll.h new file mode 100644 index 00000000..5de5b0eb --- /dev/null +++ b/src/libs/xpcom18a4/xpcom/components/xcDll.h @@ -0,0 +1,121 @@ +/* -*- Mode: C++; tab-width: 4; 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 ***** */ + +/* Dll + * + * Programmatic representation of a dll. Stores modifiedTime and size for + * easy detection of change in dll. + * + * dp Suresh <dp@netscape.com> + */ + +#ifndef xcDll_h__ +#define xcDll_h__ + +#include "prio.h" +#include "prlink.h" +#include "nsISupports.h" +#include "nsILocalFile.h" +#include "nsCOMPtr.h" +#include "nsString.h" + +class nsNativeComponentLoader; + +#if defined(DEBUG) && !defined(XP_BEOS) +#define SHOULD_IMPLEMENT_BREAKAFTERLOAD +#endif + +class nsIModule; +class nsIServiceManager; + +typedef enum nsDllStatus +{ + DLL_OK = 0, + DLL_NO_MEM = 1, + DLL_STAT_ERROR = 2, + DLL_NOT_FILE = 3, + DLL_INVALID_PARAM = 4 +} nsDllStatus; + +class nsDll +{ +private: + nsCOMPtr<nsIFile> m_dllSpec; + PRLibrary *m_instance; + nsIModule *m_moduleObject; + nsNativeComponentLoader *m_loader; + PRBool m_markForUnload; + + void Init(nsIFile *dllSpec); + +#ifdef SHOULD_IMPLEMENT_BREAKAFTERLOAD + void BreakAfterLoad(const char *nsprPath); +#endif + +public: + + nsDll(nsIFile *dllSpec, nsNativeComponentLoader* loader); + ~nsDll(void); + + // Dll Loading + PRBool Load(void); + PRBool Unload(void); + PRBool IsLoaded(void) + { + return ((m_instance != 0) ? PR_TRUE : PR_FALSE); + } + void MarkForUnload(PRBool mark) { m_markForUnload = mark; } + PRBool IsMarkedForUnload(void) { return m_markForUnload; } + + // Shutdown the dll. This will call any on unload hook for the dll. + // This wont unload the dll. Unload() implicitly calls Shutdown(). + nsresult Shutdown(void); + + void *FindSymbol(const char *symbol); + + PRBool HasChanged(void); + + void GetDisplayPath(nsACString& string); + + PRLibrary *GetInstance(void) { return (m_instance); } + + // NS_RELEASE() is required to be done on objects returned + nsresult GetDllSpec(nsIFile **dllSpec); + nsresult GetModule(nsISupports *servMgr, nsIModule **mobj); +}; + +#endif /* xcDll_h__ */ |