+++ /dev/null
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-// -*- c++ -*-
-// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
-
-// O S C L _ M E M P O O L _ A L L O C A T O R
-
-// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
-
-/*! \addtogroup osclerror OSCL Error
- *
- * @{
- */
-
-
-/*! \file oscl_mempool_allocator.cpp
- \brief This file contains the implementation of memory pool allocator for leave/trap
-*/
-
-/***************************************************************************************
-File Name : oscl_mempool_allocator.cpp
-Description : File containing implementation of class OsclMemPoolAllocator that provides
- methods for creating, deleting memory pool.
-Coding History :
- Achint Kaur April 11, 2006 Initial Draft
-***************************************************************************************/
-
-#include "oscl_mempool_allocator.h"
-
-#include "oscl_exception.h"
-
-#include "oscl_mem_basic_functions.h"
-
-/***************************************************************************************
-Description : Constructor method for memory pool allocation. Sets iCustomAllocator
- to the passed allocator pointer. Also initializes iBaseAddress to NULL.
-Arguments : gen_alloc - Custom allocator for memory. This is an input argument.
-Return Values : None
-Assumptions : None
-Known Issues : None
-***************************************************************************************/
-OsclMemPoolAllocator::OsclMemPoolAllocator(Oscl_DefAlloc* gen_alloc)
- : iBaseAddress(0)
-{
- iAlloc = (gen_alloc) ? gen_alloc : &iDefAlloc;
-}
-
-/***************************************************************************************
-Description : Virtual destructor for memory pool allocation. Calls DestroyMemPool, if
- iBaseAddress is not NULL i.e. memory pool exists.
-Arguments : None
-Return Values : None
-Assumptions : None
-Known Issues : None
-***************************************************************************************/
-OsclMemPoolAllocator::~OsclMemPoolAllocator()
-{
- if (iBaseAddress)
- {
- DestroyMemPool();
- }
-}
-
-/***************************************************************************************
-Description : Method for creating memory pool given the number of chunks and chunk size.
-Arguments : aNumChunk - Default number of chunks in a memory pool is 2.
- aChunkSize - Default size of each chunk is 4.
-Return Values : OsclAny* - Base address for the memory pool
-Assumptions : It is assumed that memory audit is not required so, _oscl_malloc used directly.
- Client can pass its custom allocator for memory.
- Malloc will be used if custom allocator is not set.
- Memory alignment is taken from osclmemory.
- uint32 and int32 are assumed to be oscl compliant.
-Known Issues : Is there a naming convention for leaving methods in oscl ?
- Is there a need for memory alignment as done ?
- Is OSCL_MEM_FILL_WITH_PATTERN required ?
-***************************************************************************************/
-OsclAny* OsclMemPoolAllocator::CreateMemPool(const uint32 aNumChunk, const uint32 aChunkSize)
-{
- if (aNumChunk == 0 || aChunkSize == 0)
- {
- OSCL_LEAVE(OsclErrArgument);
-
- // OSCL_UNUSED_RETURN(NULL); This statement was removed to avoid compiler warning for Unreachable Code
- }
-
- // Heap memory alligned chunk size
- uint32 lChunkSizeMemAligned;
-
- lChunkSizeMemAligned = oscl_mem_aligned_size(aChunkSize);
-
- iBaseAddress = iAlloc->ALLOCATE(aNumChunk * lChunkSizeMemAligned);
-
- if (iBaseAddress == NULL)
- {
- OSCL_LEAVE(OsclErrNoMemory);
-
- // OSCL_UNUSED_RETURN(NULL); This statement was removed to avoid compiler warning for Unreachable Code
-
- }
-
-#if OSCL_MEM_FILL_WITH_PATTERN
-
- oscl_memset(iMemPool, 0x55, aNumChunk*lChunkSizeMemAligned);
-
-#endif
-
- return iBaseAddress;
-
-}
-
-/***************************************************************************************
-Description : Performs memory alignment for the passed size argument.
-Arguments : x - uint representing the size to be memory aligned
-Return Values : uint - Memory aligned size
-Assumptions : None
-Known Issues : None
-***************************************************************************************/
-uint OsclMemPoolAllocator::oscl_mem_aligned_size(uint x)
-{
-
- uint y;
-
- if (x & 0x7)
- {
- y = x & (~0x7);
- y += 8;
- }
- else
- {
- y = x;
- }
-
- return y;
-}
-
-/***************************************************************************************
-Description : Method for destroying memory pool
-Arguments : None
-Return Values : None
-Assumptions : It is assumed that memory audit is not required so, _oscl_free used directly.
-Known Issues : None
-Condition : Is there any naming convention for leaving methods in oscl ?
-***************************************************************************************/
-void OsclMemPoolAllocator::DestroyMemPool()
-{
- // If client class calls DestroyMemPool without CreateMemPool i.e iBaseAddress is NULL then leave
- if (!iBaseAddress)
- {
- OSCL_LEAVE(OsclErrArgument);
-
- }
-
- iAlloc->deallocate(iBaseAddress);
- iAlloc = 0;
-
- iBaseAddress = 0;
-
- return;
-}
-
-
-
+++ /dev/null
-/* ------------------------------------------------------------------
- * Copyright (C) 1998-2009 PacketVideo
- *
- * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
- * express or implied.
- * See the License for the specific language governing permissions
- * and limitations under the License.
- * -------------------------------------------------------------------
- */
-// -*- c++ -*-
-// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
-
-// O S C L _ M E M P O O L _ A L L O C A T O R
-
-// = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
-
-/*! \addtogroup osclerror OSCL Error
- *
- * @{
- */
-
-
-/*! \file oscl_mempool_allocator.h
- \brief This file contains the definition of memory pool allocator for leave/trap
-*/
-
-/***************************************************************************************
-File Name : oscl_mempool_allocator.h
-Description : File containing definition of class OsclMemPoolAllocator that provides
- methods for creating, deleting memory pool.
-Coding History :
- Achint Kaur April 11, 2006 Initial Draft
-***************************************************************************************/
-#ifndef OSCL_MEMPOOL_ALLOCATOR_H_INCLUDED
-#define OSCL_MEMPOOL_ALLOCATOR_H_INCLUDED
-
-#ifndef OSCL_DEFALLOC_H_INCLUDED
-// For custom allocator Oscl_DefAlloc object
-#include "oscl_defalloc.h"
-#endif
-
-#ifndef OSCL_MEM_H_INCLUDED
-#include "oscl_mem.h"
-#endif
-
-class OsclMemPoolAllocator
-{
- public:
- // Constructor
- OsclMemPoolAllocator(Oscl_DefAlloc* gen_alloc = NULL);
-
- // Virtual destructor
- virtual ~OsclMemPoolAllocator();
-
- // Create memory pool
- OsclAny* CreateMemPool(const uint32 aNumChunk = 2, const uint32 aChunkSize = 4);
-
- // Delete memory pool
- void DestroyMemPool();
-
- // Memory alignment
- uint oscl_mem_aligned_size(uint size);
-
- private:
- Oscl_DefAlloc *iAlloc;//allocator for mempool.
- OsclMemAllocator iDefAlloc;//default allocator
-
- // Base address for memory pool
- OsclAny* iBaseAddress;
-
-};
-
-#endif
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