Struct Epoll

struct Epoll {
    interest_list: RefCell<BTreeMap<(FdId, i32), Rc<RefCell<EpollEventInterest>>>>,
    ready_list: Rc<ReadyList>,
    thread_id: RefCell<Vec<ThreadId>>,
}

An Epoll file descriptor connects file handles and epoll events

Fields

interest_list: RefCell<BTreeMap<(FdId, i32), Rc<RefCell<EpollEventInterest>>>>

A map of EpollEventInterests registered under this epoll instance. Each entry is differentiated using FdId and file descriptor value.

ready_list: Rc<ReadyList>

A map of EpollEventInstance that will be returned when epoll_wait is called. Similar to interest_list, the entry is also differentiated using FdId and file descriptor value.

thread_id: RefCell<Vec<ThreadId>>

A list of thread ids blocked on this epoll instance.

Implementations

impl Epoll

fn get_ready_list(&self) -> Rc<ReadyList>

Trait Implementations

impl Clone for Epoll

fn clone(&self) -> Epoll

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Epoll

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

Formats the value using the given formatter.

impl Default for Epoll

fn default() -> Epoll

Returns the “default value” for a type.

impl FileDescription for Epoll

fn name(&self) -> &'static str

fn close<'tcx>( self: Box<Self>, _communicate_allowed: bool, _ecx: &mut MiriInterpCx<'tcx>, ) -> InterpResult<'tcx, Result<()>>

fn as_unix(&self) -> &dyn UnixFileDescription

fn read<'tcx>( &self, _self_ref: &FileDescriptionRef, _communicate_allowed: bool, _ptr: Pointer, _len: usize, _dest: &MPlaceTy<'tcx>, _ecx: &mut MiriInterpCx<'tcx>, ) -> InterpResult<'tcx>

Reads as much as possible into the given buffer ptr. len indicates how many bytes we should try to read. dest is where the return value should be stored: number of bytes read, or -1 in case of error.

fn write<'tcx>( &self, _self_ref: &FileDescriptionRef, _communicate_allowed: bool, _ptr: Pointer, _len: usize, _dest: &MPlaceTy<'tcx>, _ecx: &mut MiriInterpCx<'tcx>, ) -> InterpResult<'tcx>

Writes as much as possible from the given buffer ptr. len indicates how many bytes we should try to write. dest is where the return value should be stored: number of bytes written, or -1 in case of error.

fn seek<'tcx>( &self, _communicate_allowed: bool, _offset: SeekFrom, ) -> InterpResult<'tcx, Result<u64>>

Seeks to the given offset (which can be relative to the beginning, end, or current position). Returns the new position from the start of the stream.

fn metadata<'tcx>(&self) -> InterpResult<'tcx, Result<Metadata>>

fn is_tty(&self, _communicate_allowed: bool) -> bool

impl UnixFileDescription for Epoll

fn pread<'tcx>( &self, _communicate_allowed: bool, _offset: u64, _ptr: Pointer, _len: usize, _dest: &MPlaceTy<'tcx>, _ecx: &mut MiriInterpCx<'tcx>, ) -> InterpResult<'tcx>

Reads as much as possible into the given buffer ptr from a given offset. len indicates how many bytes we should try to read. dest is where the return value should be stored: number of bytes read, or -1 in case of error.

fn pwrite<'tcx>( &self, _communicate_allowed: bool, _ptr: Pointer, _len: usize, _offset: u64, _dest: &MPlaceTy<'tcx>, _ecx: &mut MiriInterpCx<'tcx>, ) -> InterpResult<'tcx>

Writes as much as possible from the given buffer ptr starting at a given offset. ptr is the pointer to the user supplied read buffer. len indicates how many bytes we should try to write. dest is where the return value should be stored: number of bytes written, or -1 in case of error.

fn flock<'tcx>( &self, _communicate_allowed: bool, _op: FlockOp, ) -> InterpResult<'tcx, Result<()>>

fn get_epoll_ready_events<'tcx>(&self) -> InterpResult<'tcx, EpollReadyEvents>

Check the readiness of file description.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 72 bytes