Xray-core/common/interfaces.go

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2020-11-25 13:01:53 +02:00
package common
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import "github.com/xtls/xray-core/common/errors"
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// Closable is the interface for objects that can release its resources.
//
// xray:api:beta
type Closable interface {
// Close release all resources used by this object, including goroutines.
Close() error
}
// Interruptible is an interface for objects that can be stopped before its completion.
//
// xray:api:beta
type Interruptible interface {
Interrupt()
}
// Close closes the obj if it is a Closable.
//
// xray:api:beta
func Close(obj interface{}) error {
if c, ok := obj.(Closable); ok {
return c.Close()
}
return nil
}
// Interrupt calls Interrupt() if object implements Interruptible interface, or Close() if the object implements Closable interface.
//
// xray:api:beta
func Interrupt(obj interface{}) error {
if c, ok := obj.(Interruptible); ok {
c.Interrupt()
return nil
}
return Close(obj)
}
// Runnable is the interface for objects that can start to work and stop on demand.
type Runnable interface {
// Start starts the runnable object. Upon the method returning nil, the object begins to function properly.
Start() error
Closable
}
// HasType is the interface for objects that knows its type.
type HasType interface {
// Type returns the type of the object.
// Usually it returns (*Type)(nil) of the object.
Type() interface{}
}
// ChainedClosable is a Closable that consists of multiple Closable objects.
type ChainedClosable []Closable
// Close implements Closable.
func (cc ChainedClosable) Close() error {
var errs []error
for _, c := range cc {
if err := c.Close(); err != nil {
errs = append(errs, err)
}
}
return errors.Combine(errs...)
}