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-rw-r--r--layout/base/nsArenaMemoryStats.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/layout/base/nsArenaMemoryStats.h b/layout/base/nsArenaMemoryStats.h
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+++ b/layout/base/nsArenaMemoryStats.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 nsArenaMemoryStats_h
+#define nsArenaMemoryStats_h
+
+#include "mozilla/Assertions.h"
+#include "mozilla/PodOperations.h"
+
+class nsTabSizes {
+public:
+ enum Kind {
+ DOM, // DOM stuff.
+ Style, // Style stuff.
+ Other // Everything else.
+ };
+
+ nsTabSizes() { mozilla::PodZero(this); }
+
+ void add(Kind kind, size_t n)
+ {
+ switch (kind) {
+ case DOM: mDom += n; break;
+ case Style: mStyle += n; break;
+ case Other: mOther += n; break;
+ default: MOZ_CRASH("bad nsTabSizes kind");
+ }
+ }
+
+ size_t mDom;
+ size_t mStyle;
+ size_t mOther;
+};
+
+#define FRAME_ID_STAT_FIELD(classname) mArena##classname
+
+struct nsArenaMemoryStats {
+#define FOR_EACH_SIZE(macro) \
+ macro(Other, mLineBoxes) \
+ macro(Style, mRuleNodes) \
+ macro(Style, mStyleContexts) \
+ macro(Style, mStyleStructs) \
+ macro(Other, mOther)
+
+ nsArenaMemoryStats()
+ :
+ #define ZERO_SIZE(kind, mSize) mSize(0),
+ FOR_EACH_SIZE(ZERO_SIZE)
+ #undef ZERO_SIZE
+ #define FRAME_ID(classname) FRAME_ID_STAT_FIELD(classname)(),
+ #include "nsFrameIdList.h"
+ #undef FRAME_ID
+ dummy()
+ {}
+
+ void addToTabSizes(nsTabSizes *sizes) const
+ {
+ #define ADD_TO_TAB_SIZES(kind, mSize) sizes->add(nsTabSizes::kind, mSize);
+ FOR_EACH_SIZE(ADD_TO_TAB_SIZES)
+ #undef ADD_TO_TAB_SIZES
+ #define FRAME_ID(classname) \
+ sizes->add(nsTabSizes::Other, FRAME_ID_STAT_FIELD(classname));
+ #include "nsFrameIdList.h"
+ #undef FRAME_ID
+ }
+
+ size_t getTotalSize() const
+ {
+ size_t total = 0;
+ #define ADD_TO_TOTAL_SIZE(kind, mSize) total += mSize;
+ FOR_EACH_SIZE(ADD_TO_TOTAL_SIZE)
+ #undef ADD_TO_TOTAL_SIZE
+ #define FRAME_ID(classname) \
+ total += FRAME_ID_STAT_FIELD(classname);
+ #include "nsFrameIdList.h"
+ #undef FRAME_ID
+ return total;
+ }
+
+ #define DECL_SIZE(kind, mSize) size_t mSize;
+ FOR_EACH_SIZE(DECL_SIZE)
+ #undef DECL_SIZE
+ #define FRAME_ID(classname) size_t FRAME_ID_STAT_FIELD(classname);
+ #include "nsFrameIdList.h"
+ #undef FRAME_ID
+ int dummy; // present just to absorb the trailing comma from FRAME_ID in the
+ // constructor
+
+#undef FOR_EACH_SIZE
+};
+
+#endif // nsArenaMemoryStats_h