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-rw-r--r--xpcom/base/nsMemoryInfoDumper.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/xpcom/base/nsMemoryInfoDumper.h b/xpcom/base/nsMemoryInfoDumper.h
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+++ b/xpcom/base/nsMemoryInfoDumper.h
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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/. */
+
+#ifndef mozilla_nsMemoryInfoDumper_h
+#define mozilla_nsMemoryInfoDumper_h
+
+#include "nsIMemoryInfoDumper.h"
+#include <stdio.h>
+
+/**
+ * This class facilitates dumping information about our memory usage to disk.
+ *
+ * Its cpp file also has Linux-only code which watches various OS signals and
+ * dumps memory info upon receiving a signal. You can activate these listeners
+ * by calling Initialize().
+ */
+class nsMemoryInfoDumper : public nsIMemoryInfoDumper
+{
+ virtual ~nsMemoryInfoDumper();
+
+public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_NSIMEMORYINFODUMPER
+
+ nsMemoryInfoDumper();
+
+ static void Initialize();
+
+#ifdef MOZ_DMD
+ // Open an appropriately named file for a DMD report. If DMD is
+ // disabled, return a null FILE* instead.
+ static nsresult OpenDMDFile(const nsAString& aIdentifier, int aPid,
+ FILE** aOutFile);
+ // Write a DMD report to the given file and close it.
+ static nsresult DumpDMDToFile(FILE* aFile);
+#endif
+};
+
+#define NS_MEMORY_INFO_DUMPER_CID \
+{ 0x00bd71fb, 0x7f09, 0x4ec3, \
+{ 0x96, 0xaf, 0xa0, 0xb5, 0x22, 0xb7, 0x79, 0x69 } }
+
+#endif