vspace::internals::Block Struct Reference

#include <vspace.h>

Public Member Functions
bool	is_free ()
int	level ()
void	mark_as_allocated (vaddr_t vaddr, int level)
void	mark_as_free (int level)

Data Fields
vaddr_t	prev
vaddr_t	next
size_t	data [1]

Detailed Description

Definition at line 1529 of file vspace.h.

Member Function Documentation

is_free()

bool vspace::internals::Block::is_free ( )

inline

Definition at line 1543 of file vspace.h.

                 {
    return (prev & 3) != 1;
  }

level()

int vspace::internals::Block::level ( )

inline

Definition at line 1546 of file vspace.h.

              {
    if (is_free())
      return (int) data[0];
    else
      return (int) (prev >> (LOG2_MAX_SEGMENTS + 2));
  }

mark_as_allocated()

void vspace::internals::Block::mark_as_allocated ( vaddr_t  vaddr, int  level  )

inline

Definition at line 1552 of file vspace.h.

                                                   {
    vaddr_t bits = level;
    bits <<= LOG2_MAX_SEGMENTS;
    bits |= vaddr >> LOG2_SEGMENT_SIZE;
    bits <<= 2;
    bits |= 1;
    prev = bits;
    next = 0;
  }

mark_as_free()

void vspace::internals::Block::mark_as_free ( int  level )

inline

Definition at line 1561 of file vspace.h.

                               {
    data[0] = level;
  }

Field Documentation

data

size_t vspace::internals::Block::data[1]

Definition at line 1542 of file vspace.h.

next

vaddr_t vspace::internals::Block::next

Definition at line 1541 of file vspace.h.

prev

vaddr_t vspace::internals::Block::prev

Definition at line 1540 of file vspace.h.

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The documentation for this struct was generated from the following file:

• kernel/oswrapper/vspace.h