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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /gfx/2d/NativeFontResource.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/2d/NativeFontResource.cpp')
-rw-r--r-- | gfx/2d/NativeFontResource.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gfx/2d/NativeFontResource.cpp b/gfx/2d/NativeFontResource.cpp new file mode 100644 index 0000000000..1c6a9fe0af --- /dev/null +++ b/gfx/2d/NativeFontResource.cpp @@ -0,0 +1,52 @@ +/* -*- 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/. */ + +#include "2D.h" +#include "nsIMemoryReporter.h" + +namespace mozilla { +namespace gfx { + +static Atomic<size_t> gTotalNativeFontResourceData; + +NativeFontResource::NativeFontResource(size_t aDataLength) + : mDataLength(aDataLength) { + gTotalNativeFontResourceData += mDataLength; +} + +NativeFontResource::~NativeFontResource() { + gTotalNativeFontResourceData -= mDataLength; +} + +// Memory reporter that estimates the amount of memory that is currently being +// allocated internally by various native font APIs for native font resources. +// The sanest way to do this, given that NativeFontResources can be created and +// used in many different threads or processes and given that such memory is +// implicitly allocated by the native APIs, is just to maintain a global atomic +// counter and report this value as such. +class NativeFontResourceDataMemoryReporter final : public nsIMemoryReporter { + ~NativeFontResourceDataMemoryReporter() = default; + + public: + NS_DECL_ISUPPORTS + + NS_IMETHOD CollectReports(nsIHandleReportCallback* aHandleReport, + nsISupports* aData, bool aAnonymize) override { + MOZ_COLLECT_REPORT("explicit/gfx/native-font-resource-data", KIND_HEAP, + UNITS_BYTES, gTotalNativeFontResourceData, + "Total memory used by native font API resource data."); + return NS_OK; + } +}; + +NS_IMPL_ISUPPORTS(NativeFontResourceDataMemoryReporter, nsIMemoryReporter) + +void NativeFontResource::RegisterMemoryReporter() { + RegisterStrongMemoryReporter(new NativeFontResourceDataMemoryReporter); +} + +} // namespace gfx +} // namespace mozilla |