Module pending_requests

A Load implementation that uses the count of in-flight requests.

Structs

• Count
  Represents the number of currently-pending requests to a given service.
• Handle
  Tracks an in-flight request by reference count.
• PendingRequests
  Expresses load based on the number of currently-pending requests.
• PendingRequestsDiscover
  Wraps inner’s services with PendingRequests.