Struct solana_rbpf::memory_region::AlignedMemoryMapping

pub struct AlignedMemoryMapping<'a> { /* private fields */ }

Memory mapping that uses the upper half of an address to identify the underlying memory region.

Implementations

impl<'a> AlignedMemoryMapping<'a>

pub fn new( regions: Vec<MemoryRegion>, config: &'a Config, sbpf_version: &'a SBPFVersion, ) -> Result<Self, EbpfError>

Creates a new MemoryMapping structure from the given regions

pub fn new_with_cow( regions: Vec<MemoryRegion>, cow_cb: MemoryCowCallback, config: &'a Config, sbpf_version: &'a SBPFVersion, ) -> Result<Self, EbpfError>

Creates a new MemoryMapping structure from the given regions.

cow_cb is used to copy CoW regions on the first write access.

pub fn map( &self, access_type: AccessType, vm_addr: u64, len: u64, ) -> ProgramResult

Given a list of regions translate from virtual machine to host address

pub fn load<T: Pod + Into<u64>>(&self, vm_addr: u64) -> ProgramResult

Loads size_of::<T>() bytes from the given address.

See MemoryMapping::load.

pub fn store<T: Pod>(&self, value: T, vm_addr: u64) -> ProgramResult

Store value at the given address.

See MemoryMapping::store.

pub fn region( &self, access_type: AccessType, vm_addr: u64, ) -> Result<&MemoryRegion, EbpfError>

Returns the MemoryRegion corresponding to the given address.

pub fn get_regions(&self) -> &[MemoryRegion]

Returns the MemoryRegions in this mapping

pub fn replace_region( &mut self, index: usize, region: MemoryRegion, ) -> Result<(), EbpfError>

Replaces the MemoryRegion at the given index

Trait Implementations

impl<'a> Debug for AlignedMemoryMapping<'a>

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

Formats the value using the given formatter.