sandbox

Documentation

Overview

Creates sandboxes according to the configuration.

Package sandbox provides a registry of sandboxes for code execution.

Index

• Variables
• func ApplyConfig(cfg *config.Config) error
• func Exec(in engine.Request) engine.Execution
• func Validate(in engine.Request) error
• type Semaphore
  • func NewSemaphore(size int) *Semaphore
  • func (q *Semaphore) Acquire() error
  • func (q *Semaphore) Release()
  • func (q *Semaphore) Size() int

Variables

var ErrBusy = errors.New("busy")

var ErrEmptyRequest = errors.New("empty request")

var ErrUnknownCommand = errors.New("unknown command")

var ErrUnknownSandbox = errors.New("unknown sandbox")

Functions

func ApplyConfig

func ApplyConfig(cfg *config.Config) error

ApplyConfig fills engine registry according to the configuration.

func Exec

func Exec(in engine.Request) engine.Execution

Exec executes the code using the appropriate sandbox. Allows no more than pool.Size() concurrent workers at any given time. The request must already be validated by Validate().

func Validate

func Validate(in engine.Request) error

Validate checks if the code execution request is valid.

Types

type Semaphore

type Semaphore struct {
	// contains filtered or unexported fields
}

A Semaphore manages a limited number of tokens that can be acquired or released.

func NewSemaphore

func NewSemaphore(size int) *Semaphore

NewSemaphore creates a new semaphore of the specified size.

func (*Semaphore) Acquire

func (q *Semaphore) Acquire() error

Acquire acquires a token. Returns ErrBusy if no tokens are available.

func (*Semaphore) Release

func (q *Semaphore) Release()

Release releases a token.

func (*Semaphore) Size

func (q *Semaphore) Size() int

Size returns the size of the semaphore.