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/*
* Copyright (C) 2004-2011 NXP Software
* Copyright (C) 2011 The Android Open Source Project
*
* 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.
*/
/**
*************************************************************************
* @file M4PSW_MemoryInterface.c
* @brief Memory Interface
* @note Implementation of the osal memory functions
*************************************************************************
*/
#include <stdlib.h>
#include <memory.h>
#include <time.h>
#include "M4OSA_Memory.h"
#ifndef M4VPS_ADVANCED_MEMORY_MANAGER
/**
************************************************************************
* @fn M4OSA_MemAddr32 M4OSA_malloc(M4OSA_UInt32 size,
* M4OSA_CoreID coreID,
* M4OSA_Char* string)
* @brief this function allocates a memory block (at least 32 bits aligned)
* @note
* @param size (IN): size of allocated block in bytes
* @param coreID (IN): identification of the caller component
* @param string (IN): description of the allocated block (null terminated)
* @return address of the allocated block, M4OSA_NULL if no memory available
************************************************************************
*/
M4OSA_MemAddr32 M4OSA_malloc(M4OSA_UInt32 size,
M4OSA_CoreID coreID,
M4OSA_Char* string)
{
M4OSA_MemAddr32 Address = M4OSA_NULL;
/**
* If size is 0, malloc on WIN OS allocates a zero-length item in
* the heap and returns a valid pointer to that item.
* On other platforms, malloc could returns an invalid pointer
* So, DON'T allocate memory of 0 byte */
if (size == 0)
{
return Address;
}
if (size%4 != 0)
{
size = size + 4 - (size%4);
}
Address = (M4OSA_MemAddr32) malloc(size);
return Address;
}
/**
************************************************************************
* @fn M4OSA_Void M4OSA_free(M4OSA_MemAddr32 address)
* @brief this function free the provided memory block
* @note As in stlib.h, this function does nothing if address is NULL.
* @param address (IN): address of the block to free
* @return none
************************************************************************
*/
M4OSA_Void M4OSA_free (M4OSA_MemAddr32 address)
{
free(address);
}
/**
************************************************************************
* @fn M4OSA_Void M4OSA_memset(M4OSA_MemAddr8 block,
* M4OSA_UInt32 size,
* M4OSA_UInt8 value)
* @brief this function initializes the provided memory block with value
* @note
* @param block (IN): address of block to fill
* @param size (IN): size of the provided block
* @param value (IN): value used for initialization
* @return none
************************************************************************
*/
M4OSA_Void M4OSA_memset(M4OSA_MemAddr8 block,
M4OSA_UInt32 size,
M4OSA_UInt8 value)
{
memset((void*)block, value, size);
}
/**
************************************************************************
* @fn M4OSA_Void M4OSA_memcpy(M4OSA_MemAddr8 outputBlock,
* M4OSA_MemAddr8 inputBlock,
* M4OSA_UInt32 size)
* @brief this function copies 'size' bytes from inputBlock to outputBlock
* @note
* @param outputBlock (IN): address of block to fill
* @param inputBlock (IN): address of the input block
* @param size (IN): size of the block to copy (in bytes)
* @return none
************************************************************************
*/
M4OSA_Void M4OSA_memcpy(M4OSA_MemAddr8 outputBlock,
M4OSA_MemAddr8 inputBlock,
M4OSA_UInt32 size)
{
memcpy((void*)outputBlock, (void*)inputBlock, size);
}
/**
************************************************************************
* @fn M4OSA_MemAddr8 M4OSA_memmove(M4OSA_MemAddr8 outputBlock, M4OSA_MemAddr8 inputBlock, M4OSA_UInt32 size)
* @brief this function moves 'size' bytes from inputBlock to outputBlock
* unlike M4OSA_memcpy, the two buffers can have an overlap.
* @note increment memcpy byte number (François VALETTE)
* @param outputBlock (IN): address of block to fill
* @param inputBlock (IN): address of the input block
* @param size (IN): size of the block to copy (in bytes)
* @return address of the output block, i.e. the first parameter
************************************************************************
*/
M4OSA_MemAddr8 M4OSA_memmove(M4OSA_MemAddr8 outputBlock,
M4OSA_MemAddr8 inputBlock,
M4OSA_UInt32 size)
{
return memmove((void*)outputBlock, (void*)inputBlock, size);
}
/**
************************************************************************
* @fn M4OSA_Int32 M4OSA_memcmp(M4OSA_MemAddr8 address1, M4OSA_MemAddr8 address2, M4OSA_UInt32 size)
* @brief this function compares the first 'size' bytes of address1 and
'address2' and return a value indicating their relationship.
* @note
* @param address1 (IN): memory address 1
* @param address2 (IN): memory address 2
* @param size (IN): size of the block to compare (in bytes)
* @return +1, if first bytes of adress1 are smaller than those of address2
* @return 0, if both blocks are identical
* @return -1, if first bytes of address1 are bigger than those of address2
************************************************************************
*/
M4OSA_Int32 M4OSA_memcmp(M4OSA_MemAddr8 address1,
M4OSA_MemAddr8 address2,
M4OSA_UInt32 size)
{
M4OSA_Int32 i32_result = memcmp(address1, address2, size);
if (i32_result > 0) {
return 1;
}
else if (i32_result < 0) {
return((M4OSA_Int32)-1);
}
return 0;
}
#endif
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