100 lines
2.5 KiB
C++
100 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsArenaMemoryStats_h
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#define nsArenaMemoryStats_h
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#include "mozilla/Assertions.h"
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#include "mozilla/PodOperations.h"
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class nsTabSizes {
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public:
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enum Kind {
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DOM, // DOM stuff.
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Style, // Style stuff.
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Other // Everything else.
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};
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nsTabSizes()
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: mDom(0)
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, mStyle(0)
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, mOther(0)
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{
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}
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void add(Kind kind, size_t n)
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{
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switch (kind) {
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case DOM: mDom += n; break;
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case Style: mStyle += n; break;
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case Other: mOther += n; break;
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default: MOZ_CRASH("bad nsTabSizes kind");
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}
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}
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size_t mDom;
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size_t mStyle;
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size_t mOther;
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};
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#define FRAME_ID_STAT_FIELD(classname) mArena##classname
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struct nsArenaMemoryStats {
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#define FOR_EACH_SIZE(macro) \
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macro(Other, mLineBoxes) \
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macro(Style, mRuleNodes) \
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macro(Style, mStyleContexts) \
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macro(Style, mStyleStructs) \
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macro(Other, mOther)
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nsArenaMemoryStats()
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:
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#define ZERO_SIZE(kind, mSize) mSize(0),
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FOR_EACH_SIZE(ZERO_SIZE)
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#undef ZERO_SIZE
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#define FRAME_ID(classname) FRAME_ID_STAT_FIELD(classname)(),
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#include "nsFrameIdList.h"
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#undef FRAME_ID
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dummy()
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{}
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void addToTabSizes(nsTabSizes *sizes) const
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{
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#define ADD_TO_TAB_SIZES(kind, mSize) sizes->add(nsTabSizes::kind, mSize);
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FOR_EACH_SIZE(ADD_TO_TAB_SIZES)
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#undef ADD_TO_TAB_SIZES
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#define FRAME_ID(classname) \
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sizes->add(nsTabSizes::Other, FRAME_ID_STAT_FIELD(classname));
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#include "nsFrameIdList.h"
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#undef FRAME_ID
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}
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size_t getTotalSize() const
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{
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size_t total = 0;
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#define ADD_TO_TOTAL_SIZE(kind, mSize) total += mSize;
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FOR_EACH_SIZE(ADD_TO_TOTAL_SIZE)
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#undef ADD_TO_TOTAL_SIZE
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#define FRAME_ID(classname) \
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total += FRAME_ID_STAT_FIELD(classname);
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#include "nsFrameIdList.h"
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#undef FRAME_ID
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return total;
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}
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#define DECL_SIZE(kind, mSize) size_t mSize;
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FOR_EACH_SIZE(DECL_SIZE)
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#undef DECL_SIZE
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#define FRAME_ID(classname) size_t FRAME_ID_STAT_FIELD(classname);
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#include "nsFrameIdList.h"
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#undef FRAME_ID
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int dummy; // present just to absorb the trailing comma from FRAME_ID in the
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// constructor
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#undef FOR_EACH_SIZE
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};
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#endif // nsArenaMemoryStats_h
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