*Is it safe to just `finish` a pipeline without wo...

# ktor

[okarm]

Is it safe to just finish a pipeline without worrying about resources?

Simplified use case (Authenticator):

I'm intercepting the HttpReceivePipeline.Before phase.
For that pipeline the subject is HttpResponse and the context is HttpClientCall

1. If the subject is Unauthorized, the interceptor refreshes API token under a Mutex.
2. If the token refresh was successful, the interceptor calls finish and executes a new HttpStatement, taking the current subject.request as its base.

val retry: HttpRequestBuilder? = mutex.withLock { 
    // Build a new request with refreshed credentials
    // or return null to proceed normally
}
if (scope.isActive && retry != null) {
    finish()
    val newResponse = HttpStatement(retry, scope).execute()
    proceedWith(newResponse)
}