31 lines
676 B
Go
31 lines
676 B
Go
package worker
|
|
|
|
import (
|
|
"code.google.com/p/go.net/context"
|
|
)
|
|
|
|
const reqkey = "worker"
|
|
|
|
// NewContext returns a Context whose Value method returns the
|
|
// application's worker queue.
|
|
func NewContext(parent context.Context, worker Worker) context.Context {
|
|
return &wrapper{parent, worker}
|
|
}
|
|
|
|
type wrapper struct {
|
|
context.Context
|
|
worker Worker
|
|
}
|
|
|
|
// Value returns the named key from the context.
|
|
func (c *wrapper) Value(key interface{}) interface{} {
|
|
if key == reqkey {
|
|
return c.worker
|
|
}
|
|
return c.Context.Value(key)
|
|
}
|
|
|
|
// FromContext returns the worker queue associated with this context.
|
|
func FromContext(c context.Context) Worker {
|
|
return c.Value(reqkey).(Worker)
|
|
}
|