From 2aa4a82499d4becd2284cdb482213d541b8804dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 16:29:10 +0200 Subject: Adding upstream version 86.0.1. Signed-off-by: Daniel Baumann --- tools/profiler/core/PageInformation.h | 65 +++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 tools/profiler/core/PageInformation.h (limited to 'tools/profiler/core/PageInformation.h') diff --git a/tools/profiler/core/PageInformation.h b/tools/profiler/core/PageInformation.h new file mode 100644 index 0000000000..0f10c6e99d --- /dev/null +++ b/tools/profiler/core/PageInformation.h @@ -0,0 +1,65 @@ +/* -*- Mode: C++; tab-width: 2; 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 PageInformation_h +#define PageInformation_h + +#include "mozilla/Maybe.h" +#include "mozilla/MemoryReporting.h" +#include "nsISupportsImpl.h" +#include "nsString.h" + +namespace mozilla { +namespace baseprofiler { +class SpliceableJSONWriter; +} // namespace baseprofiler +} // namespace mozilla + +// This class contains information that's relevant to a single page only +// while the page information is important and registered with the profiler, +// but regardless of whether the profiler is running. All accesses to it are +// protected by the profiler state lock. +// When the page gets unregistered, we keep the profiler buffer position +// to determine if we are still using this page. If not, we unregister +// it in the next page registration. +class PageInformation final { + public: + NS_INLINE_DECL_THREADSAFE_REFCOUNTING(PageInformation) + PageInformation(uint64_t aBrowsingContextID, uint64_t aInnerWindowID, + const nsCString& aUrl, uint64_t aEmbedderInnerWindowID); + + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; + bool Equals(PageInformation* aOtherPageInfo) const; + void StreamJSON(mozilla::baseprofiler::SpliceableJSONWriter& aWriter) const; + + uint64_t InnerWindowID() const { return mInnerWindowID; } + uint64_t BrowsingContextID() const { return mBrowsingContextID; } + const nsCString& Url() const { return mUrl; } + uint64_t EmbedderInnerWindowID() const { return mEmbedderInnerWindowID; } + + mozilla::Maybe BufferPositionWhenUnregistered() const { + return mBufferPositionWhenUnregistered; + } + + void NotifyUnregistered(uint64_t aBufferPosition) { + mBufferPositionWhenUnregistered = mozilla::Some(aBufferPosition); + } + + private: + const uint64_t mBrowsingContextID; + const uint64_t mInnerWindowID; + const nsCString mUrl; + const uint64_t mEmbedderInnerWindowID; + + // Holds the buffer position when page is unregistered. + // It's used to determine if we still use this page in the profiler or + // not. + mozilla::Maybe mBufferPositionWhenUnregistered; + + virtual ~PageInformation() = default; +}; + +#endif // PageInformation_h -- cgit v1.2.3