// WithProcessClosed returns a context.Context that is cancelled
// after Process p is Closed. It is the equivalent of:
//
// func WithProcessClosed(ctx context.Context, p goprocess.Process) context.Context {
// ctx, cancel := context.WithCancel(ctx)
// go func() {
// <-p.Closed()
// cancel()
// }()
// return ctx
// }
//
func WithProcessClosed(ctx context.Context, p goprocess.Process) context.Context {
ctx, cancel := context.WithCancel(ctx)
go func() {
<-p.Closed()
cancel()
}()
return ctx
}
// OnClosedContext derives a context from a given goprocess that will
// be 'Done' when the process is closed
func OnClosedContext(p goprocess.Process) context.Context {
return &procContext{
done: p.Closed(),
which: closed,
}
}