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mutable instead of const_cast for nicer code

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git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5636 212acab6-be3b-0410-9dea-997c60f758d6
This commit is contained in:
kichik 2008-05-08 10:27:32 +00:00
parent 709ed79b5b
commit 09df47d0f2
2 changed files with 8 additions and 10 deletions
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14
Source/mmap.cpp
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@ -263,12 +263,10 @@ void *MMapFile::get(int offset, int *sizep) const
size += offset - alignedoffset;
#ifdef _WIN32
const_cast<MMapFile*>(this)->m_pView =
MapViewOfFile(m_hFileMap, m_bReadOnly ? FILE_MAP_READ : FILE_MAP_WRITE, 0, alignedoffset, size);
m_pView = MapViewOfFile(m_hFileMap, m_bReadOnly ? FILE_MAP_READ : FILE_MAP_WRITE, 0, alignedoffset, size);
#else
const_cast<MMapFile*>(this)->m_pView =
mmap(0, size, m_bReadOnly ? PROT_READ : PROT_READ | PROT_WRITE, MAP_SHARED, m_hFileDesc, alignedoffset);
const_cast<MMapFile*>(this)->m_iMappedSize = *sizep = size;
m_pView = mmap(0, size, m_bReadOnly ? PROT_READ : PROT_READ | PROT_WRITE, MAP_SHARED, m_hFileDesc, alignedoffset);
m_iMappedSize = *sizep = size;
#endif
#ifdef _WIN32
@ -297,11 +295,11 @@ void *MMapFile::getmore(int offset, int size) const
#ifndef _WIN32
int iMappedSizeBackup = m_iMappedSize;
#endif
const_cast<MMapFile*>(this)->m_pView = 0;
m_pView = 0;
pView = get(offset, size);
const_cast<MMapFile*>(this)->m_pView = pViewBackup;
m_pView = pViewBackup;
#ifndef _WIN32
const_cast<MMapFile*>(this)->m_iMappedSize = iMappedSizeBackup;
m_iMappedSize = iMappedSizeBackup;
#endif
return pView;
}