omPage.h File Reference

Go to the source code of this file.

Macros
#define	OM_SIZEOF_INDEX_PAGE   (SIZEOF_SYSTEM_PAGE << LOG_BIT_SIZEOF_LONG)
#define	omGetPageShiftOfAddr(addr)   ((((unsigned long) addr) & (OM_SIZEOF_INDEX_PAGE -1)) >> LOG_BIT_SIZEOF_SYSTEM_PAGE)
#define	omGetPageIndexOfAddr(addr)   (((unsigned long) addr) >> (LOG_BIT_SIZEOF_LONG + LOG_BIT_SIZEOF_SYSTEM_PAGE))
#define	omIsPageAddr(addr)
#define	omRegisterPageIndex(index)
#define	omRegisterExternalAddr(addr)
#define	omRegisterPageAddr(addr)
#define	omIsAddrPageAligned(addr)   (((long) (addr) & (SIZEOF_SYSTEM_PAGE -1)) == 0)
#define	omGetPageOfAddr(addr)   ((void*) ((long) (addr) & ~(SIZEOF_SYSTEM_PAGE -1)))
#define	omGetBinPageOfAddr(addr)   ((omBinPage) ((long) (addr) & ~(SIZEOF_SYSTEM_PAGE -1)))
#define	omIsAddrOnPage(addr, page)   (omGetPageOfAddr(addr) == (void*) (page))
#define	omAreAddrOnSamePage(a1, a2)   (omGetPageOfAddr(a1) == omGetPageOfAddr(a2))
#define	omIsNotAddrOnFreePage(addr)   (!omIsAddrOnFreePage(addr))

Functions
void	omPageIndexFault (unsigned long page_index)
void *	omGetPage ()
void	omFreePage (void *page)
void	omReleaseFreePages ()
int	omGetNumberOfFreePages ()
int	omGetNumberOfUsedPages ()
int	omGetNumberOfAllocatedPages ()
int	omIsAddrOnFreePage (void *addr)
int	omIsAddrOnRegisteredPage (void *addr)

Variables
unsigned long	omMaxPageIndex
unsigned long	omMinPageIndex
unsigned long *	omPageIndicies

Macro Definition Documentation

#define OM_SIZEOF_INDEX_PAGE   (SIZEOF_SYSTEM_PAGE << LOG_BIT_SIZEOF_LONG)

Definition at line 36 of file omPage.h.

#define omAreAddrOnSamePage	(		a1,
			a2
	)		(omGetPageOfAddr(a1) == omGetPageOfAddr(a2))

Definition at line 114 of file omPage.h.

#define omGetBinPageOfAddr

(

addr

)

((omBinPage) ((long) (addr) & ~(SIZEOF_SYSTEM_PAGE -1)))

Definition at line 109 of file omPage.h.

#define omGetPageIndexOfAddr

(

addr

)

(((unsigned long) addr) >> (LOG_BIT_SIZEOF_LONG + LOG_BIT_SIZEOF_SYSTEM_PAGE))

Definition at line 41 of file omPage.h.

#define omGetPageOfAddr

(

addr

)

((void*) ((long) (addr) & ~(SIZEOF_SYSTEM_PAGE -1)))

Definition at line 106 of file omPage.h.

#define omGetPageShiftOfAddr

(

addr

)

((((unsigned long) addr) & (OM_SIZEOF_INDEX_PAGE -1)) >> LOG_BIT_SIZEOF_SYSTEM_PAGE)

Definition at line 38 of file omPage.h.

#define omIsAddrOnPage	(		addr,
			page
	)		(omGetPageOfAddr(addr) == (void*) (page))

Definition at line 112 of file omPage.h.

#define omIsAddrPageAligned

(

addr

)

(((long) (addr) & (SIZEOF_SYSTEM_PAGE -1)) == 0)

Definition at line 103 of file omPage.h.

#define omIsNotAddrOnFreePage

(

addr

)

(!omIsAddrOnFreePage(addr))

Definition at line 120 of file omPage.h.

#define omIsPageAddr

(

addr

)

Value:

((omPageIndicies[omGetPageIndexOfAddr(addr) - omMinPageIndex] & \
    (((unsigned long)1) << omGetPageShiftOfAddr(addr))) != 0)

Definition at line 44 of file omPage.h.

#define omRegisterExternalAddr

(

addr

)

Value:

do                                                          \
{                                                           \
  unsigned long _omPageIndex = omGetPageIndexOfAddr(addr);  \
  omRegisterPageIndex(_omPageIndex);                        \
  omPageIndicies[_omPageIndex - omMinPageIndex] &=          \
    ~ (((unsigned long) 1) << omGetPageShiftOfAddr(addr));  \
}                                                           \
while (0)

Definition at line 63 of file omPage.h.

#define omRegisterPageAddr

(

addr

)

Value:

do                                                          \
{                                                           \
  unsigned long _omPageIndex = omGetPageIndexOfAddr(addr);  \
  omRegisterPageIndex(_omPageIndex);                        \
  omPageIndicies[_omPageIndex - omMinPageIndex] |=          \
      (((unsigned long) 1) << omGetPageShiftOfAddr(addr));  \
}                                                           \
while (0)

Definition at line 73 of file omPage.h.

#define omRegisterPageIndex

(

index

)

Value:

do                                                      \
{                                                       \
  if (index < omMinPageIndex || index > omMaxPageIndex) \
  {                                                     \
    omPageIndexFault(index);                            \
  }                                                     \
}                                                       \
while (0)

Definition at line 53 of file omPage.h.

Function Documentation

void omFreePage

(

void *

page

)

int omGetNumberOfAllocatedPages

(

)

int omGetNumberOfFreePages

(

)

int omGetNumberOfUsedPages

(

)

void* omGetPage

(

)

int omIsAddrOnFreePage

(

void *

addr

)

int omIsAddrOnRegisteredPage

(

void *

addr

)

void omPageIndexFault

(

unsigned long

page_index

)

void omReleaseFreePages

(

)

Variable Documentation

unsigned long omMaxPageIndex

unsigned long omMinPageIndex

unsigned long* omPageIndicies