Struct ketos::restrict::RestrictConfig

pub struct RestrictConfig {
    pub execution_time: Option<Duration>,
    pub call_stack_size: usize,
    pub value_stack_size: usize,
    pub namespace_size: usize,
    pub memory_limit: usize,
    pub max_integer_size: usize,
    pub max_syntax_nesting: usize,
}

Contains parameters configuring restrictions of runtime code execution

See module-level documentation for an example of its use.

Fields

execution_time: Option<Duration>

Limits the maximum execution time, beginning from a call into the virtual machine, until the topmost function returns.

If the user desires to limit total execution time of multiple separate function calls, the user must track execution time and adjust this limit manually.

call_stack_size: usize

Limits the call stack depth during execution to a number of nested functions calls

value_stack_size: usize

Limits the number of values that can be stored on the stack during execution

namespace_size: usize

Limits the maximum number of values that can be stored in a GlobalScope

memory_limit: usize

Memory limit during execution of code. This is not a specific measure of bytes; it's more an abstract estimate of values held during execution.

max_integer_size: usize

Maximum size, in bits, of integer and ratio values

max_syntax_nesting: usize

Maximum nested depth of syntactical elements

Methods

impl RestrictConfig

pub fn permissive() -> RestrictConfig

Returns a RestrictConfig that is most permissive.

No restrictions are placed on executing code.

pub fn strict() -> RestrictConfig

Returns a RestrictConfig that is most strict.

Small programs with short runtimes should not have a problem operating within these restrictions.

Trait Implementations

impl Clone for RestrictConfig

fn clone(&self) -> RestrictConfig

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RestrictConfig

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

Formats the value using the given formatter.