gecko-dev/dom/plugins/base/nsPluginSafety.h

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/* -*- 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 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
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* ***** END LICENSE BLOCK ***** */
#ifndef nsPluginSafety_h_
#define nsPluginSafety_h_
#include "npapi.h"
#include "nsPluginHost.h"
#include "nsIPrefBranch.h"
#include "nsIPrefService.h"
#include <prinrval.h>
#if defined(XP_WIN)
#define CALL_SAFETY_ON
#endif
void NS_NotifyPluginCall(PRIntervalTime);
#ifdef CALL_SAFETY_ON
extern bool gSkipPluginSafeCalls;
#define NS_INIT_PLUGIN_SAFE_CALLS \
PR_BEGIN_MACRO \
nsresult res; \
nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID, &res)); \
if(NS_SUCCEEDED(res) && pref) \
res = pref->GetBoolPref("plugin.dont_try_safe_calls", &gSkipPluginSafeCalls);\
PR_END_MACRO
#define NS_TRY_SAFE_CALL_RETURN(ret, fun, pluginInst) \
PR_BEGIN_MACRO \
PRIntervalTime startTime = PR_IntervalNow(); \
if(gSkipPluginSafeCalls) \
ret = fun; \
else \
{ \
MOZ_SEH_TRY \
{ \
ret = fun; \
} \
MOZ_SEH_EXCEPT(true) \
{ \
nsresult res; \
nsCOMPtr<nsIPluginHost> host(do_GetService(MOZ_PLUGIN_HOST_CONTRACTID, &res));\
if(NS_SUCCEEDED(res) && (host != nsnull)) \
static_cast<nsPluginHost*>(host.get())->HandleBadPlugin(nsnull, pluginInst); \
ret = (NPError)NS_ERROR_FAILURE; \
} \
} \
NS_NotifyPluginCall(startTime); \
PR_END_MACRO
#define NS_TRY_SAFE_CALL_VOID(fun, pluginInst) \
PR_BEGIN_MACRO \
PRIntervalTime startTime = PR_IntervalNow(); \
if(gSkipPluginSafeCalls) \
fun; \
else \
{ \
MOZ_SEH_TRY \
{ \
fun; \
} \
MOZ_SEH_EXCEPT(true) \
{ \
nsresult res; \
nsCOMPtr<nsIPluginHost> host(do_GetService(MOZ_PLUGIN_HOST_CONTRACTID, &res));\
if(NS_SUCCEEDED(res) && (host != nsnull))\
static_cast<nsPluginHost*>(host.get())->HandleBadPlugin(nsnull, pluginInst);\
} \
} \
NS_NotifyPluginCall(startTime); \
PR_END_MACRO
#else // vanilla calls
#define NS_TRY_SAFE_CALL_RETURN(ret, fun, pluginInst) \
PR_BEGIN_MACRO \
PRIntervalTime startTime = PR_IntervalNow(); \
ret = fun; \
NS_NotifyPluginCall(startTime); \
PR_END_MACRO
#define NS_TRY_SAFE_CALL_VOID(fun, pluginInst) \
PR_BEGIN_MACRO \
PRIntervalTime startTime = PR_IntervalNow(); \
fun; \
NS_NotifyPluginCall(startTime); \
PR_END_MACRO
#endif // CALL_SAFETY_ON
#endif //nsPluginSafety_h_