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Pawan Dhananjay 61f4ed9800 Optimized broadcast #309 (#405) 
* Added extra message types

* Add send functions for new message types

* Store original value message received from proposer

* Modify handle_value for optimized broadcast

* Modify handle_echo for optimized broadcast

* Add handle_echo_hash function for optimized broadcast

* Add handle_can_decode function for optimized broadcast

* Fixes handle_ready and send_echo functions:
1) Modify handle_ready function for optimized broadcast
2) Modify send_echo function to send `Echo` messages to different subset of nodes from
handle_value and handle_ready functions

* Remove value_message and fix typos

* Add functions for filtering all_ids

* Separate send_echo to send_echo_left and send_echo_remaining

* Rename pessimism_factor to fault_estimate

* Remove redundant bools from Broadcast struct

* Fix multiple counting of nodes who sent both `Echo` and `EchoHash` by changing
`echos` map structure

* Allow conflicting `CanDecode`s from same node

* Fix left and right iterators for `Echo` and `EchoHash` messages

* Fixes bugs in left and right iterators and adds additional checks in handle
functions

* Change can_decodes to BTreeMap<Digest, BTreeSet<N>> and fix send_can_decode

* Minor fixes

* Modify send_echo_remaining to take a hash parameter

* Fix bug in left and right iterators.

* Excluding proposer in iterator led to infinite loop when our_id == proposer_id

* Fix bug in handle_echo and compute_output
* send_can_decode call in handle_echo returned early
* compute_output needed `N - f` full `Echo`s to decode

* Refactor `echos` map to take an EchoContent Enum for `Echo` and `EchoHash` messages

* Run rustfmt

* Refactor to avoid index access and multiple map lookups

* Fix comments and minor refactorings.

* Add an`AllExcept(BTreeSet<N>)` type to `Target` enum to enable sending messages
to non-validators from Broadcast.
* Use `Target::AllExcept` in Broadcast to send `Echo` messages to all non-validator nodes.
* Add `AllExcept(_)` match arms for `Target` match expressions.

* Rename `AllExcept` parameter from `known` to `exclude`.

* Modify send_can_decode to send to all nodes who haven't sent an `Echo`.

* Update docs for broadcast

* Improve formatting and add comments for broadcast docs.

* Fix formatting.

* Allow for sending multiple `CanDecode` messages with different hashes.

* Fix comments.

* Fix bug in sending `Echo`s when node has not received `CanDecode`.
 		2019-06-12 16:02:39 +01:00
..
network Optimized broadcast #309 (#405) 2019-06-12 16:02:39 +01:00
README.md added example of intended use of Node and a draft of value encryption 2018-03-27 21:59:38 +01:00
consensus-node.rs Fix consensus-node --help. 2018-12-12 09:55:28 +01:00
run-consensus-nodes.sh Remove protobuf support. 2018-07-31 11:58:44 +02:00
simulation.rs Optimized broadcast #309 (#405) 2019-06-12 16:02:39 +01:00

README.md

Examples for the hbbft library

  • Consensus node - Example of a consensus node that uses the hbbft::node::Node struct for running the distributed consensus state machine.