netwerk/protocol/http/SpdyZlibReporter.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/netwerk/protocol/http/SpdyZlibReporter.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,50 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set sw=2 ts=8 et tw=80 : */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +/* A memory allocator for zlib use in SPDY that reports to about:memory. */
    1.11 +
    1.12 +#include "mozilla/Assertions.h"
    1.13 +#include "mozilla/Atomics.h"
    1.14 +#include "mozilla/Attributes.h"
    1.15 +#include "nsIMemoryReporter.h"
    1.16 +#include "zlib.h"
    1.17 +
    1.18 +namespace mozilla {
    1.19 +
    1.20 +class SpdyZlibReporter MOZ_FINAL : public nsIMemoryReporter
    1.21 +{
    1.22 +public:
    1.23 +  NS_DECL_ISUPPORTS
    1.24 +
    1.25 +  SpdyZlibReporter()
    1.26 +  {
    1.27 +#ifdef DEBUG
    1.28 +    // There must be only one instance of this class, due to |sAmount|
    1.29 +    // being static.
    1.30 +    static bool hasRun = false;
    1.31 +    MOZ_ASSERT(!hasRun);
    1.32 +    hasRun = true;
    1.33 +#endif
    1.34 +    sAmount = 0;
    1.35 +  }
    1.36 +
    1.37 +  static void* Alloc(void*, uInt items, uInt size);
    1.38 +  static void Free(void*, void* p);
    1.39 +
    1.40 +private:
    1.41 +  // |sAmount| can be (implicitly) accessed by multiple threads, so it
    1.42 +  // must be thread-safe.
    1.43 +  static Atomic<size_t> sAmount;
    1.44 +
    1.45 +  MOZ_DEFINE_MALLOC_SIZE_OF(MallocSizeOf)
    1.46 +  MOZ_DEFINE_MALLOC_SIZE_OF_ON_ALLOC(MallocSizeOfOnAlloc)
    1.47 +  MOZ_DEFINE_MALLOC_SIZE_OF_ON_FREE(MallocSizeOfOnFree)
    1.48 +
    1.49 +  NS_IMETHODIMP
    1.50 +  CollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData);
    1.51 +};
    1.52 +
    1.53 +} // namespace mozilla

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