mirror of https://github.com/v2ray/v2ray-core
29 lines
556 B
Go
29 lines
556 B
Go
// +build !confonly
|
|
|
|
package core
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
type key int
|
|
|
|
const v2rayKey key = 1
|
|
|
|
// FromContext returns an Instance from the given context, or nil if the context doesn't contain one.
|
|
func FromContext(ctx context.Context) *Instance {
|
|
if s, ok := ctx.Value(v2rayKey).(*Instance); ok {
|
|
return s
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// MustFromContext returns an Instance from the given context, or panics if not present.
|
|
func MustFromContext(ctx context.Context) *Instance {
|
|
v := FromContext(ctx)
|
|
if v == nil {
|
|
panic("V is not in context.")
|
|
}
|
|
return v
|
|
}
|