mirror of
https://github.com/go-micro/go-micro.git
synced 2025-10-30 23:27:41 +02:00
ebc479ef2c
The original signature accept a boolean, and it feel like a little verbose, since when people pass in this option, he/she always want to pass a `true`. Now if input `wg` is nil, it has same effect as passing `true` in original code. Furthermore, if user want's finer grained control during shutdown, one can pass in a predefined `wg`, so that server will wait against it during shutdown.
29 lines
469 B
Go
29 lines
469 B
Go
package server
|
|
|
|
import (
|
|
"context"
|
|
"sync"
|
|
)
|
|
|
|
type serverKey struct{}
|
|
|
|
func wait(ctx context.Context) *sync.WaitGroup {
|
|
if ctx == nil {
|
|
return nil
|
|
}
|
|
wg, ok := ctx.Value("wait").(*sync.WaitGroup)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
return wg
|
|
}
|
|
|
|
func FromContext(ctx context.Context) (Server, bool) {
|
|
c, ok := ctx.Value(serverKey{}).(Server)
|
|
return c, ok
|
|
}
|
|
|
|
func NewContext(ctx context.Context, s Server) context.Context {
|
|
return context.WithValue(ctx, serverKey{}, s)
|
|
}
|