gecko-dev/xpcom/glue/nsMemory.cpp

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */

#include "nsXPCOM.h"
#include "nsMemory.h"
#include "nsIMemory.h"
#include "nsXPCOMPrivate.h"
#include "nsDebug.h"
#include "nsISupportsUtils.h"
#include "nsCOMPtr.h"

////////////////////////////////////////////////////////////////////////////////
// nsMemory static helper routines

NS_COM_GLUE nsresult
nsMemory::HeapMinimize(bool aImmediate)
{
    nsCOMPtr<nsIMemory> mem;
    nsresult rv = NS_GetMemoryManager(getter_AddRefs(mem));
    if (NS_WARN_IF(NS_FAILED(rv)))
        return rv;

    return mem->HeapMinimize(aImmediate);
}

NS_COM_GLUE void*
nsMemory::Clone(const void* ptr, size_t size)
{
    void* newPtr = NS_Alloc(size);
    if (newPtr)
        memcpy(newPtr, ptr, size);
    return newPtr;
}

NS_COM_GLUE nsIMemory*
nsMemory::GetGlobalMemoryService()
{
    nsIMemory* mem;
    nsresult rv = NS_GetMemoryManager(&mem);
    if (NS_FAILED(rv)) return nullptr;
   
    return mem;
}

//----------------------------------------------------------------------