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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/2d/NativeFontResource.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/2d/NativeFontResource.cpp')
-rw-r--r--gfx/2d/NativeFontResource.cpp52
1 files changed, 52 insertions, 0 deletions
diff --git a/gfx/2d/NativeFontResource.cpp b/gfx/2d/NativeFontResource.cpp
new file mode 100644
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+++ b/gfx/2d/NativeFontResource.cpp
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+/* -*- 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