author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:54:36 +0300 | |
branch | RCL_3 |
changeset 56 | acd3cd4aaceb |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005-2009 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 "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: Implementation of mmap/munmap/msync. |
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* |
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*/ |
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// INCLUDE FILES |
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#include <sys/mman.h> |
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#include "mmap.h" |
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extern "C" |
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{ |
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// ----------------------------------------------------------------------------- |
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// Funcation name: mmap |
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// Description: Provides mmap functionality. |
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// Returns: valid address : On success |
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// -1 : On error |
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// In case of error, errno value set |
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// |
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// ----------------------------------------------------------------------------- |
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EXPORT_C void* mmap(void */*addr*/, size_t len, int prot, int flags, int fildes, off_t offset) |
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{ |
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//TODO;To validate addr for page boundry and sharedmemory |
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return _mmap_r(_REENT, len, prot, flags, fildes, offset); |
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} |
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// ----------------------------------------------------------------------------- |
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// Funcation name: munmap |
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// Description: Provides munmap functionality. |
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// Returns: 0 : On success |
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// -1 : On error |
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// In case of error, errno value set |
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// Remark: support for unmapping part of the mapped pages is not supported |
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// Unmap will remove all mappings those were mapped starting from the offset |
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// to offset + len (refer to mmap signature) |
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// ----------------------------------------------------------------------------- |
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EXPORT_C int munmap(void *addr, size_t len) |
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{ |
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//TODO;To validate addr for page boundry and sharedmemory |
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return _munmap_r(_REENT, addr, len); |
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} |
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// ----------------------------------------------------------------------------- |
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// Funcation name: msync |
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// Description: Provides msync functionality. |
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// Returns: 0 : On success |
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// -1 : On error |
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// In case of error, errno value set |
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// |
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// ----------------------------------------------------------------------------- |
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EXPORT_C int msync(void *addr, size_t len, int flags) |
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{ |
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return _msync_r(_REENT, addr, len, flags); |
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} |
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// ----------------------------------------------------------------------------- |
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// Funcation name: mprotect |
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// Description: Provides msync functionality. |
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// Returns: 0 : On success |
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// -1 : On error |
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// In case of error, errno value set |
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// Remark: mprotect is only build enabled and not functional |
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// ----------------------------------------------------------------------------- |
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EXPORT_C int mprotect(const void *addr, size_t len, int prot) |
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{ |
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return _mprotect_r(_REENT, addr, len, prot); |
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} |
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} // extern "C" |
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// End of File |