PageAccessControl Class Reference

List of all members.

Classes
class	Entry
	protection of a memory region (see mprotect(2)) More...
Public Types
typedef std::vector< Entry >	protected_t
	the list of protected pages
typedef protected_t::const_iterator	const_iterator
Public Member Functions
	PageAccessControl (size_t reservedSize=65535)
	PageAccessControl (procmaps &pmaps, size_t reservedSize=65535)
template<typename T >
bool	protectPage (T *addr, int prot)
template<typename T >
bool	forbidPage (const T *addr)
	forbid access to the page containing addr, setting its prot to PROT_NONE
bool	forbidPage (const void *addr, size_t objSize)
	forbid access to the page containing addr, setting its prot to PROT_NONE
bool	forbidPage (const void *addr)
	FIXME this will not work well for objects spanning across pages.
bool	protectPage (const void *addr, size_t objSize, int prot)
	void* version of protectPage. Used to implement all others
bool	restorePageProt (const void *addr)
void	sort ()
const protected_t &	protectedPtrs () const
const_iterator	beginProtectedPtrs () const
const_iterator	endProtectedPtrs () const
void	reset ()
bool	accessed (const void *address) const
	was the page containing address accessed?

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Member Function Documentation

template<typename T >

bool PageAccessControl::protectPage	(	T *	addr,
		int	prot
	)			[inline]

protect the page containing addr, record the amount of memory we protected NOTE To avoid SEGV, if PROT_WRITE is requested the remainder of the page containing the object at addr will be leaked with malloc before being write-locked

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The documentation for this class was generated from the following files:

• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.28/CxxUtils/CxxUtils/PageAccessControl.h
• /cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.28/CxxUtils/Root/PageAccessControl.cxx