forked from mirrors/gecko-dev
a26eafe5c3
This patch removes the old docshell timeline and timeline markers codebase and replaces them with equivalent Gecko profiler marker. This patch also fixes Bug 1834143, which is a subset of 1421651.
Differential Revision: https://phabricator.services.mozilla.com/D184217
78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_SCRIPT_AUTOENTRYSCRIPT_H_
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#define DOM_SCRIPT_AUTOENTRYSCRIPT_H_
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#include "MainThreadUtils.h"
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#include "js/Debug.h"
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#include "js/TypeDecls.h"
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#include "jsapi.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/ProfilerLabels.h"
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#include "mozilla/dom/JSExecutionManager.h"
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#include "mozilla/dom/ScriptSettings.h"
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class nsIGlobalObject;
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class nsIPrincipal;
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namespace xpc {
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class AutoScriptActivity;
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}
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namespace mozilla::dom {
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/*
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* A class that represents a new script entry point.
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*
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* |aReason| should be a statically-allocated C string naming the reason we're
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* invoking JavaScript code: "setTimeout", "event", and so on. The devtools use
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* these strings to label JS execution in timeline and profiling displays.
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*
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*/
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class MOZ_STACK_CLASS AutoEntryScript : public AutoJSAPI {
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public:
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// Constructing the AutoEntryScript will ensure that it enters the
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// Realm of aGlobalObject's JSObject and exposes that JSObject to active JS.
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AutoEntryScript(nsIGlobalObject* aGlobalObject, const char* aReason,
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bool aIsMainThread = NS_IsMainThread());
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// aObject can be any object from the relevant global. It must not be a
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// cross-compartment wrapper because CCWs are not associated with a single
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// global.
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//
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// Constructing the AutoEntryScript will ensure that it enters the
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// Realm of aObject JSObject and exposes aObject's global to active JS.
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AutoEntryScript(JSObject* aObject, const char* aReason,
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bool aIsMainThread = NS_IsMainThread());
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~AutoEntryScript();
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void SetWebIDLCallerPrincipal(nsIPrincipal* aPrincipal) {
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mWebIDLCallerPrincipal = aPrincipal;
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}
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private:
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// It's safe to make this a weak pointer, since it's the subject principal
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// when we go on the stack, so can't go away until after we're gone. In
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// particular, this is only used from the CallSetup constructor, and only in
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// the aIsJSImplementedWebIDL case. And in that case, the subject principal
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// is the principal of the callee function that is part of the CallArgs just a
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// bit up the stack, and which will outlive us. So we know the principal
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// can't go away until then either.
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nsIPrincipal* MOZ_NON_OWNING_REF mWebIDLCallerPrincipal;
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friend nsIPrincipal* GetWebIDLCallerPrincipal();
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Maybe<xpc::AutoScriptActivity> mScriptActivity;
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JS::AutoHideScriptedCaller mCallerOverride;
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AutoProfilerLabel mAutoProfilerLabel;
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AutoRequestJSThreadExecution mJSThreadExecution;
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};
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} // namespace mozilla::dom
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#endif // DOM_SCRIPT_AUTOENTRYSCRIPT_H_
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