gecko/dom/plugins/base/nsPluginSafety.h
2012-07-30 17:20:58 +03:00

96 lines
3.7 KiB
C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsPluginSafety_h_
#define nsPluginSafety_h_
#include "npapi.h"
#include "nsPluginHost.h"
#include <prinrval.h>
#if defined(XP_WIN)
#define CALL_SAFETY_ON
#endif
void NS_NotifyPluginCall(PRIntervalTime);
#ifdef CALL_SAFETY_ON
#include "mozilla/Preferences.h"
extern bool gSkipPluginSafeCalls;
#define NS_INIT_PLUGIN_SAFE_CALLS \
PR_BEGIN_MACRO \
gSkipPluginSafeCalls = \
::mozilla::Preferences::GetBool("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 != nullptr)) \
static_cast<nsPluginHost*>(host.get())->HandleBadPlugin(nullptr, 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 != nullptr))\
static_cast<nsPluginHost*>(host.get())->HandleBadPlugin(nullptr, 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_