Enum Outcome 

pub enum Outcome {
    Halt,
    Panic,
    PageFault {
        page: PageNum,
        num_pages: u32,
    },
    OutOfGas,
    OutputLimitReached,
    TimeLimitReached,
    WaitingForInput(InputStreams),
    InputLimitReached,
}

The result code returned by CoreVM service.

It is similar to jam_pvm_common::InvokeOutcome but does not include host-call faults because they are automatically handled by CoreVM.

Variants

Halt

Completed normally.

Panic

Completed with a panic.

PageFault

Completed with a page fault that couldn’t be handled by CoreVM.

Undhandled page fault might occur because either the max. no. of exports is reached or the corresponding page was not imported by the work package. In the former case the program needs to be resumed in the next work package without any further action from the builder. In the latter case the page with the specified address has to be imported on the next program run to continue.

Fields

page: PageNum

num_pages: u32

OutOfGas

Completed by running out of gas.

OutputLimitReached

The inner VM has reached the max. no. of exports while appending new data to the output stream.

TimeLimitReached

The program produced one time-slot worth of video frames or audio samples.

If both streams are active, then both streams need to have one time-slot worth of data to trigger this outcome.

WaitingForInput(InputStreams)

The program is waiting for the specified input streams.

InputLimitReached

The inner VM has reached max. bundle size while reading input stream or host/inter-service message or on page fault.

Trait Implementations

impl Clone for Outcome

fn clone(&self) -> Outcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Outcome

impl Debug for Outcome

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

Formats the value using the given formatter.

impl Decode for Outcome

fn decode<__CodecInputEdqy: Input>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<Self, Error>

Attempt to deserialise the value from input.

fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>

where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory.

fn skip<I>(input: &mut I) -> Result<(), Error>

where I: Input,

Attempt to skip the encoded value from input.

fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type.

impl Encode for Outcome

fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding.

fn encode_to<__CodecOutputEdqy: Output + ?Sized>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )

Convert self to a slice and append it to the destination.

fn encode(&self) -> Vec<u8>

Convert self to an owned vector.

fn using_encoded<R, F>(&self, f: F) -> R

where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.

fn encoded_size(&self) -> usize

Calculates the encoded size.

impl EncodeLike for Outcome

impl Eq for Outcome

impl MaxEncodedLen for Outcome

fn max_encoded_len() -> usize

Upper bound, in bytes, of the maximum encoded size of this item.

impl PartialEq for Outcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Outcome