gecko-dev/dom/base/nsJSEnvironment.h
Nathan Froyd 01583602a9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi

--HG--
rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 01:24:48 -04:00

234 lines
7.1 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 nsJSEnvironment_h
#define nsJSEnvironment_h
#include "nsIScriptContext.h"
#include "nsIScriptGlobalObject.h"
#include "nsCOMPtr.h"
#include "nsIObserver.h"
#include "prtime.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIXPConnect.h"
#include "nsIArray.h"
#include "mozilla/Attributes.h"
#include "nsPIDOMWindow.h"
#include "nsThreadUtils.h"
#include "xpcpublic.h"
class nsICycleCollectorListener;
class nsScriptNameSpaceManager;
namespace JS {
template <typename T>
class AutoVectorRooter;
typedef AutoVectorRooter<Value> AutoValueVector;
} // namespace JS
namespace mozilla {
template <class> class Maybe;
struct CycleCollectorResults;
} // namespace mozilla
// The amount of time we wait between a request to GC (due to leaving
// a page) and doing the actual GC.
#define NS_GC_DELAY 4000 // ms
#define NS_MAJOR_FORGET_SKIPPABLE_CALLS 5
class nsJSContext : public nsIScriptContext
{
public:
nsJSContext(bool aGCOnDestruction, nsIScriptGlobalObject* aGlobalObject);
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsJSContext,
nsIScriptContext)
virtual nsIScriptGlobalObject *GetGlobalObject() override;
inline nsIScriptGlobalObject *GetGlobalObjectRef() { return mGlobalObjectRef; }
virtual JSContext* GetNativeContext() override;
virtual nsresult InitContext() override;
virtual bool IsContextInitialized() override;
virtual nsresult SetProperty(JS::Handle<JSObject*> aTarget, const char* aPropName, nsISupports* aVal) override;
virtual bool GetProcessingScriptTag() override;
virtual void SetProcessingScriptTag(bool aResult) override;
virtual nsresult InitClasses(JS::Handle<JSObject*> aGlobalObj) override;
virtual void WillInitializeContext() override;
virtual void DidInitializeContext() override;
virtual void SetWindowProxy(JS::Handle<JSObject*> aWindowProxy) override;
virtual JSObject* GetWindowProxy() override;
virtual JSObject* GetWindowProxyPreserveColor() override;
static void LoadStart();
static void LoadEnd();
enum IsShrinking {
ShrinkingGC,
NonShrinkingGC
};
enum IsIncremental {
IncrementalGC,
NonIncrementalGC
};
// Setup all the statics etc - safe to call multiple times after Startup().
void EnsureStatics();
static void GarbageCollectNow(JS::gcreason::Reason reason,
IsIncremental aIncremental = NonIncrementalGC,
IsShrinking aShrinking = NonShrinkingGC,
int64_t aSliceMillis = 0);
static void ShrinkGCBuffersNow();
// If aExtraForgetSkippableCalls is -1, forgetSkippable won't be
// called even if the previous collection was GC.
static void CycleCollectNow(nsICycleCollectorListener *aListener = nullptr,
int32_t aExtraForgetSkippableCalls = 0);
// Run a cycle collector slice, using a heuristic to decide how long to run it.
static void RunCycleCollectorSlice();
// Run a cycle collector slice, using the given work budget.
static void RunCycleCollectorWorkSlice(int64_t aWorkBudget);
static void BeginCycleCollectionCallback();
static void EndCycleCollectionCallback(mozilla::CycleCollectorResults &aResults);
// Return the longest CC slice time since ClearMaxCCSliceTime() was last called.
static uint32_t GetMaxCCSliceTimeSinceClear();
static void ClearMaxCCSliceTime();
static void RunNextCollectorTimer();
static void PokeGC(JS::gcreason::Reason aReason, int aDelay = 0);
static void KillGCTimer();
static void PokeShrinkGCBuffers();
static void KillShrinkGCBuffersTimer();
static void PokeShrinkingGC();
static void KillShrinkingGCTimer();
static void MaybePokeCC();
static void KillCCTimer();
static void KillICCTimer();
static void KillFullGCTimer();
static void KillInterSliceGCTimer();
// Calling LikelyShortLivingObjectCreated() makes a GC more likely.
static void LikelyShortLivingObjectCreated();
static uint32_t CleanupsSinceLastGC();
nsIScriptGlobalObject* GetCachedGlobalObject()
{
// Verify that we have a global so that this
// does always return a null when GetGlobalObject() is null.
JSObject* global = GetWindowProxy();
return global ? mGlobalObjectRef.get() : nullptr;
}
static void NotifyDidPaint();
protected:
virtual ~nsJSContext();
// Helper to convert xpcom datatypes to jsvals.
nsresult ConvertSupportsTojsvals(nsISupports *aArgs,
JS::Handle<JSObject*> aScope,
JS::AutoValueVector &aArgsOut);
nsresult AddSupportsPrimitiveTojsvals(nsISupports *aArg, JS::Value *aArgv);
private:
void DestroyJSContext();
nsrefcnt GetCCRefcnt();
JSContext *mContext;
JS::Heap<JSObject*> mWindowProxy;
bool mIsInitialized;
bool mGCOnDestruction;
bool mProcessingScriptTag;
PRTime mModalStateTime;
uint32_t mModalStateDepth;
// mGlobalObjectRef ensures that the outer window stays alive as long as the
// context does. It is eventually collected by the cycle collector.
nsCOMPtr<nsIScriptGlobalObject> mGlobalObjectRef;
static void JSOptionChangedCallback(const char *pref, void *data);
static bool DOMOperationCallback(JSContext *cx);
};
class nsPIDOMWindow;
namespace mozilla {
namespace dom {
void StartupJSEnvironment();
void ShutdownJSEnvironment();
// Get the NameSpaceManager, creating if necessary
nsScriptNameSpaceManager* GetNameSpaceManager();
// Peek the NameSpaceManager, without creating it.
nsScriptNameSpaceManager* PeekNameSpaceManager();
// Runnable that's used to do async error reporting
class AsyncErrorReporter final : public nsRunnable
{
public:
// aWindow may be null if this error report is not associated with a window
explicit AsyncErrorReporter(xpc::ErrorReport* aReport)
: mReport(aReport)
{}
NS_IMETHOD Run() override
{
mReport->LogToConsole();
return NS_OK;
}
protected:
RefPtr<xpc::ErrorReport> mReport;
};
} // namespace dom
} // namespace mozilla
// An interface for fast and native conversion to/from nsIArray. If an object
// supports this interface, JS can reach directly in for the argv, and avoid
// nsISupports conversion. If this interface is not supported, the object will
// be queried for nsIArray, and everything converted via xpcom objects.
#define NS_IJSARGARRAY_IID \
{ 0xb6acdac8, 0xf5c6, 0x432c, \
{ 0xa8, 0x6e, 0x33, 0xee, 0xb1, 0xb0, 0xcd, 0xdc } }
class nsIJSArgArray : public nsIArray
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IJSARGARRAY_IID)
// Bug 312003 describes why this must be "void **", but after calling argv
// may be cast to JS::Value* and the args found at:
// ((JS::Value*)argv)[0], ..., ((JS::Value*)argv)[argc - 1]
virtual nsresult GetArgs(uint32_t *argc, void **argv) = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIJSArgArray, NS_IJSARGARRAY_IID)
#endif /* nsJSEnvironment_h */