NFD » ndn-cxx

Scenario¶

App wants to register a more general prefix, but make use of library's dispatch mechanism to invoke different handler based on Name.

Proposed change¶

Have two methods on Face class:

• RegisteredPrefix* registerPrefix(Name, successCallback, failureCallback)
  Send a prefix registration command using NRD Prefix Registration protocol.
  The return value allows app to unregister the prefix.
• InterestFilter* setInterestFilter(Name, interestHandler)
  Cause Face to dispatch Interest under Name to interestHandler.
  The return value allows app to cancel the filter.

To get Interest into an handler, app needs to:

1. registerPrefix to get Interest into the Face
2. setInterestFilter to get Interest into the handler