Interface

#Interface for encoding/decoding modules

###For the encoding modules on the upstream side Send()

• Returns errors
• takes in a buffer that is to be encoded
• takes in size of data to be encoded
• Sends all the data that's requested, either in one or many outbound packets (many URLs for instance)

###For the encoding modules on the downstream side Receive()

• Returns errors
• Takes a buffer that is to be decoded
• Takes in size of data to be decoded

###For the decision part of HTPT on the upstream side Register()

• Called by each of the encoding modules at initialization
• Provides decision module information it needs to decide
• Takes in:
  • Minimum size - likely to be 1 byte for URLs and ~4-30k for an image
  • Maximum size - likely to be 1000 bytes for URLs and MBs for an image

ReceiveCallback()

• Takes a list of decoded data
• passes it up to Tor

GetSequenceAndIncrement()

• Returns sequence number and increments
• Used by the various encode/decode modules that implement Send()

###For the decision part of HTPT on the downstream side SendData()

• Sends data
• Called by the various encode/decode modules