gecko/js/public/MemoryMetrics.h

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is about:memory glue.
 *
 * The Initial Developer of the Original Code is
 * Ms2ger <ms2ger@gmail.com>.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#ifndef js_MemoryMetrics_h
#define js_MemoryMetrics_h

/*
 * These declarations are not within jsapi.h because they are highly likely
 * to change in the future. Depend on them at your own risk.
 */

#include <string.h>

#include "jspubtd.h"

#include "js/Utility.h"

namespace JS {

/* Data for tracking analysis/inference memory usage. */
struct TypeInferenceMemoryStats
{
    int64_t scripts;
    int64_t objects;
    int64_t tables;
    int64_t temporary;
};

typedef void (* DestroyNameCallback)(void *string);

struct CompartmentStats
{
    CompartmentStats()
    {
        memset(this, 0, sizeof(*this));
    }

    void init(void *name_, DestroyNameCallback destroyName)
    {
        name = name_;
        destroyNameCb = destroyName;
    }

    ~CompartmentStats()
    {
        destroyNameCb(name);
    }

    // Pointer to an nsCString, which we can't use here.
    void *name;
    DestroyNameCallback destroyNameCb;

    int64_t gcHeapArenaHeaders;
    int64_t gcHeapArenaPadding;
    int64_t gcHeapArenaUnused;

    int64_t gcHeapObjectsNonFunction;
    int64_t gcHeapObjectsFunction;
    int64_t gcHeapStrings;
    int64_t gcHeapShapesTree;
    int64_t gcHeapShapesDict;
    int64_t gcHeapShapesBase;
    int64_t gcHeapScripts;
    int64_t gcHeapTypeObjects;
    int64_t gcHeapXML;

    int64_t objectSlots;
    int64_t stringChars;
    int64_t shapesExtraTreeTables;
    int64_t shapesExtraDictTables;
    int64_t shapesExtraTreeShapeKids;
    int64_t shapesCompartmentTables;
    int64_t scriptData;

#ifdef JS_METHODJIT
    int64_t mjitCode;
    int64_t mjitData;
#endif
    TypeInferenceMemoryStats typeInferenceMemory;
};

extern JS_PUBLIC_API(void)
SizeOfCompartmentTypeInferenceData(JSContext *cx, JSCompartment *compartment,
                                   TypeInferenceMemoryStats *stats,
                                   JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(void)
SizeOfObjectTypeInferenceData(/*TypeObject*/ void *object,
                              TypeInferenceMemoryStats *stats,
                              JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(size_t)
SizeOfObjectDynamicSlots(JSObject *obj, JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(size_t)
SizeOfCompartmentShapeTable(JSCompartment *c, JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(size_t)
SizeOfCompartmentMjitCode(const JSCompartment *c);

extern JS_PUBLIC_API(bool)
IsShapeInDictionary(const void *shape);

extern JS_PUBLIC_API(size_t)
SizeOfShapePropertyTable(const void *shape, JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(size_t)
SizeOfShapeKids(const void *shape, JSMallocSizeOfFun mallocSizeOf);

extern JS_PUBLIC_API(size_t)
SizeOfScriptData(JSScript *script, JSMallocSizeOfFun mallocSizeOf);

#ifdef JS_METHODJIT
extern JS_PUBLIC_API(size_t)
SizeOfScriptJitData(JSScript *script, JSMallocSizeOfFun mallocSizeOf);
#endif

extern JS_PUBLIC_API(size_t)
SystemCompartmentCount(const JSRuntime *rt);

extern JS_PUBLIC_API(size_t)
UserCompartmentCount(const JSRuntime *rt);

} // namespace JS

#endif // js_MemoryMetrics_h