author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 01:47:50 +0200 | |
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permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the License "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Internal memory management function declarations |
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* |
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*/ |
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|
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#ifndef __M3G_MEMORY_H__ |
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#define __M3G_MEMORY_H__ |
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#if defined(__cplusplus) |
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extern "C" { |
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#endif |
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/*! |
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* \internal |
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* \file |
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* \brief Internal memory management function declarations |
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*/ |
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|
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#include "M3G/m3g_core.h" |
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#include "m3g_defs.h" |
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#if !defined(M3G_NO_STDLIB) |
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# include <string.h> |
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#endif |
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/*---------------------------------------------------------------------- |
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* Internal API |
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*--------------------------------------------------------------------*/ |
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/*! |
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* \internal |
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* \brief Fills a block of memory with a value |
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* |
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* \param ptr pointer to the block to fill |
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* \param size length of the block, in bytes |
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*/ |
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static M3G_INLINE void m3gFill(void *ptr, size_t size, M3Gbyte value)/*@modifies *ptr@*/ |
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{ |
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#if defined(M3G_NO_STDLIB) |
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M3Gbyte *pb = (M3Gbyte*) ptr; |
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while(size--) { |
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*pb++ = value; |
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} |
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#else |
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memset(ptr, (int) value, size); |
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#endif |
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} |
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/*! |
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* \internal |
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* \brief Sets a block of memory to zero |
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* |
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* \param ptr pointer to the block to zero |
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* \param size length of the block, in bytes |
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*/ |
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static M3G_INLINE void m3gZero(void *ptr, size_t size)/*@modifies *ptr@*/ |
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{ |
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m3gFill(ptr, size, (M3Gbyte) 0); |
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} |
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/*! |
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* \internal |
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* \brief Copies a block of memory |
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* |
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* \param ptr pointer to the block to zero |
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* \param size length of the block, in bytes |
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*/ |
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static M3G_INLINE void m3gCopy( |
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/*@unique@*/ void *dst, |
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/*@unique@*/ const void *src, |
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size_t size)/*@modifies *dst@*/ |
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{ |
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#if defined(M3G_NO_STDLIB) |
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M3Gbyte *dst = (M3Gbyte *) dst; |
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const M3Gbyte *src = (const M3Gbyte *) src; |
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while(size--) { |
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*dst++ = *src++; |
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} |
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#else |
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memcpy(dst, src, size); |
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#endif |
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} |
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/*! |
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* \internal |
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* \brief Moves a block of memory |
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* |
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* \param ptr pointer to the block to zero |
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* \param size length of the block, in bytes |
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*/ |
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static M3G_INLINE void m3gMove( |
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/*@unique@*/ void *dst, |
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/*@unique@*/ const void *src, |
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size_t size)/*@modifies *dst@*/ |
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107 |
{ |
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108 |
#if defined(M3G_NO_STDLIB) |
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M3Gbyte *dst = (M3Gbyte *) dst; |
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const M3Gbyte *src = (const M3Gbyte *) src; |
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if(dst <= src || (src + size) >= dst) { |
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while(size--) { |
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*dst++ = *src++; |
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114 |
} |
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115 |
} |
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116 |
else { |
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src += size - 1; |
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dst += size - 1; |
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while(size--) { |
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*dst-- = *src--; |
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121 |
} |
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122 |
} |
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123 |
#else |
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memmove(dst, src, size); |
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#endif |
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126 |
} |
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127 |
|
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#if defined(__cplusplus) |
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} /* extern "C" */ |
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130 |
#endif |
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131 |
|
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#endif /*__M3G_MEMORY_H__*/ |