Struct dpdk_unix::android_linux::page_table::PageMapEntry

pub struct PageMapEntry(_);

Bits 57-60 (zero-based) should be set to zero and currently do not have any meaning.

Methods

impl PageMapEntry

pub fn read_our_pagemap_file<HVA: HasVirtualAddress>(
    have_virtual_addresses: impl Iterator<Item = HVA>,
    page_map_entry_user: impl FnMut(HVA, VirtualAddress, PageMapEntry)
) -> Result<()>

Read the current process' pagemap file.

pub fn read_pagemap_file<HVA: HasVirtualAddress>(
    have_virtual_addresses: impl Iterator<Item = HVA>,
    page_map_entry_user: impl FnMut(HVA, VirtualAddress, PageMapEntry),
    page_map_file_path: impl AsRef<Path>
) -> Result<()>

Read the a process' pagemap file, typically at /proc/PID/pagemap, where UPID is the process' identifier ('pid').

pub fn physical_page_frame_number(self) -> PhysicalPageFrameNumber

Physical Page Frame Number (PFN).

May be zero if an user lacks the capability CAP_SYS_ADMIN.

This data is not valid if the page can be swapped out; to prevent that, lock the page using mlock(). (If swapped, the bottom 5 bits are the swap type and the bits 5 (zero-based, ie this is the 6th bit) to 54 inclusive are the swap offset; we panic if this is the case in debug).

The top 9 bits are unset (ie always zero).

pub fn is_swapped(self) -> bool

Page is swapped.

Bit 62 (zero-based).

pub fn is_present(self) -> bool

Page is present.

Bit 63 (zero-based).

pub fn is_exclusively_mapped(self) -> bool

Page is exclusively mapped.

Introduced in Linux 4.2.

Bit 56 (zero-based).

pub fn is_file_page_or_shared_anonymous(self) -> bool

Page is exclusively mapped.

Introduced in Linux 3.5.

Bit 61 (zero-based).

pub fn page_table_entry_is_soft_dirty(self) -> bool

Page Table Entry (PTE) is 'soft dirty'.

For more information, see the Linux documentation at Documentation/vm/soft-dirty.txt.

Bit 55 (zero-based).

Trait Implementations

impl Eq for PageMapEntry

impl Clone for PageMapEntry

fn clone(&self) -> PageMapEntry

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PageMapEntry

impl PartialOrd<PageMapEntry> for PageMapEntry

fn partial_cmp(&self, other: &PageMapEntry) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &PageMapEntry) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &PageMapEntry) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &PageMapEntry) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &PageMapEntry) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq<PageMapEntry> for PageMapEntry

fn eq(&self, other: &PageMapEntry) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &PageMapEntry) -> bool

This method tests for !=.

impl Default for PageMapEntry

fn default() -> PageMapEntry

Returns the "default value" for a type.

impl Ord for PageMapEntry

fn cmp(&self, other: &PageMapEntry) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl Hash for PageMapEntry

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl Debug for PageMapEntry

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.