Exemplos de createmempool em C++ (Cpp)

Exemplo n.º 1

Arquivo: threadsafe_mempool.cpp Projeto: sujinde168/platform_external_opencore

OSCL_EXPORT_REF OsclAny* ThreadSafeMemPoolFixedChunkAllocator::allocate(const uint32 n)
{
    // Create the memory pool if it hasn't been created yet.
    // Use the allocation size, n, as the chunk size for memory pool
    iMemPoolMutex.Lock();

    if (iChunkSize == 0)
    {
        iChunkSize = n;
        createmempool();
    }
    else if (n > iChunkSize)
    {
        OSCL_LEAVE(OsclErrArgument);

    }


    if (iFreeMemChunkList.empty())
    {
        // No free chunk is available

        iMemPoolMutex.Unlock();
        return NULL;
    }

    // Return the next available chunk from the pool
    OsclAny* freechunk = iFreeMemChunkList.back();
    // Remove the chunk from the free list
    iFreeMemChunkList.pop_back();
    addRef_internal();
    iMemPoolMutex.Unlock();

    return freechunk;
}

Exemplo n.º 2

Arquivo: oscl_mem_mempool.cpp Projeto: icblenke/platform_external_opencore

OSCL_EXPORT_REF OsclMemPoolFixedChunkAllocator::OsclMemPoolFixedChunkAllocator(const uint32 numchunk, const uint32 chunksize, Oscl_DefAlloc* gen_alloc, const uint32 chunkalignment) :
        iNumChunk(1), iChunkSize(0), iChunkSizeMemAligned(0), iChunkAlignment(chunkalignment),
        iMemPoolAllocator(gen_alloc), iMemPool(NULL), iMemPoolAligned(NULL),
        iCheckNextAvailableFreeChunk(false), iObserver(NULL),
        iNextAvailableContextData(NULL),
        iRefCount(1),
        iEnableNullPtrReturn(false)
{
    iNumChunk = numchunk;
    iChunkSize = chunksize;
    iChunkAlignment = chunkalignment;

    if (iNumChunk == 0)
    {
        iNumChunk = 1;
    }

    // if alignment paramater is used - set it to the nearest larger power of 2
    if ((iChunkAlignment > 0) && (iChunkAlignment < 0x80000000))
    {
        uint32 align = 1;
        while (align < iChunkAlignment)
        {
            align <<= 1;
        }
        iChunkAlignment = align;
    }

    // 8 byte alignment is the default. It shouldn't be larger than 1k
    if ((iChunkAlignment < 8) || (iChunkAlignment > 1024))
    {
        iChunkAlignment = 0;
    }

    if (iChunkSize > 0)
    {
        createmempool();
    }
}

Exemplo n.º 3

Arquivo: threadsafe_mempool.cpp Projeto: sujinde168/platform_external_opencore

OSCL_EXPORT_REF ThreadSafeMemPoolFixedChunkAllocator::ThreadSafeMemPoolFixedChunkAllocator(const uint32 numchunk, const uint32 chunksize, Oscl_DefAlloc* gen_alloc) :
    iNumChunk(1), iChunkSize(0), iChunkSizeMemAligned(0),
    iMemPoolAllocator(gen_alloc), iMemPool(NULL),
    iCheckNextAvailableFreeChunk(false), iObserver(NULL),
    iNextAvailableContextData(NULL),
    iRefCount(1)
{
    iNumChunk = numchunk;
    iChunkSize = chunksize;

    if (iNumChunk == 0)
    {
        iNumChunk = 1;
    }

    if (iChunkSize > 0)
    {
        createmempool();
    }

    iMemPoolMutex.Create();


}

Exemplo n.º 4

Arquivo: oscl_mem_mempool.cpp Projeto: icblenke/platform_external_opencore

OSCL_EXPORT_REF OsclAny* OsclMemPoolFixedChunkAllocator::allocate(const uint32 n)
{
    // Create the memory pool if it hasn't been created yet.
    // Use the allocation size, n, as the chunk size for memory pool
    if (iChunkSize == 0)
    {
        iChunkSize = n;
        createmempool();
    }
    else if (n > iChunkSize)
    {
        OSCL_LEAVE(OsclErrArgument);
        // OSCL_UNUSED_RETURN(NULL);    This statement was removed to avoid compiler warning for Unreachable Code

    }

    if (iFreeMemChunkList.empty())
    {
        // No free chunk is available
        if (iEnableNullPtrReturn)
        {
            return NULL;
        }
        else
        {
            OSCL_LEAVE(OsclErrNoResources);
        }
    }

    // Return the next available chunk from the pool
    OsclAny* freechunk = iFreeMemChunkList.back();
    // Remove the chunk from the free list
    iFreeMemChunkList.pop_back();
    addRef();
    return freechunk;
}