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feat(miniprotocols): Add Tx-Mempool-Monitoring mini-Protocol (#150)
* implement txmonitor mini-protocol * update README * add Protocol Version V11,V12 and function V10_and_above for handshake protocol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| use super::{Message, MsgRequest, MsgResponse, MempoolSizeAndCapacity}; | ||
| use pallas_codec::minicbor::{decode, encode, Decode, Encode, Encoder}; | ||
|
|
||
| impl Encode<()> for Message | ||
| { | ||
|
|
||
| fn encode<W: encode::Write>( | ||
| &self, | ||
| e: &mut Encoder<W>, | ||
| ctx: &mut (), | ||
| ) -> Result<(), encode::Error<W::Error>> { | ||
| match self { | ||
| Message::MsgDone => { | ||
| e.array(1)?.u16(0)?; | ||
| }, | ||
| Message::MsgAcquire => { | ||
| e.array(1)?.u16(1)?; | ||
|
|
||
| }, | ||
| Message::MsgAcquired(slot) => { | ||
| e.array(2)?.u16(2)?; | ||
| e.encode(slot)?; | ||
| }, | ||
| Message::MsgQuery(query) => { | ||
| query.encode(e, ctx)?; | ||
| }, | ||
| Message::MsgResponse(response) => { | ||
| response.encode(e, ctx)?; | ||
| } | ||
| } | ||
| log::debug!("encode message: {:?}",self); | ||
| Ok(()) | ||
| } | ||
| } | ||
|
|
||
| impl<'b> Decode<'b,()> for Message { | ||
| fn decode(d: &mut pallas_codec::minicbor::Decoder<'b>, _ctx: &mut ()) -> Result<Self, decode::Error> { | ||
| d.array()?; | ||
| let label = d.u16()?; | ||
| log::debug!("decode message: {:?}",label); | ||
| match label { | ||
| 0 => { | ||
| Ok(Message::MsgDone) | ||
| }, | ||
| 1 => { | ||
| Ok(Message::MsgAcquire) | ||
| }, | ||
| 2 => { | ||
| let slot = d.decode()?; | ||
| Ok(Message::MsgAcquired(slot)) | ||
| }, | ||
| 3 => { | ||
| Ok(Message::MsgQuery(MsgRequest::MsgRelease)) | ||
| }, | ||
| 5 => { | ||
| Ok(Message::MsgQuery(MsgRequest::MsgNextTx)) | ||
| }, | ||
| 6 => { | ||
| log::trace!("Decoding 6, 1. Array: {:?}",d); | ||
| let de : Result<Option<u64>,pallas_codec::minicbor::decode::Error> = d.array(); | ||
| log::trace!("Decoding 6, 2. Array: {:?}",de); | ||
| let tag : Result<u8,pallas_codec::minicbor::decode::Error> = d.u8(); | ||
| let mut tx = None; | ||
| if let Ok(_) = tag { | ||
| log::trace!("Decoding 6, Tag: {:?}",tag); | ||
| let det = d.tag(); | ||
| log::trace!("Decoding 6, Bytes: {:?}",det); | ||
| let cbor = d.bytes()?; | ||
| tx = Some(hex::encode(cbor)); | ||
| log::trace!("Decoding 6, Tx: {:?}",tx); | ||
|
|
||
| } | ||
| Ok(Message::MsgResponse(MsgResponse::MsgReplyNextTx(tx))) | ||
| }, | ||
| 7 => { | ||
| let txid = d.decode()?; | ||
| Ok(Message::MsgQuery(MsgRequest::MsgHasTx(txid))) | ||
| } | ||
| 8 => { | ||
| let has = d.decode()?; | ||
| Ok(Message::MsgResponse(MsgResponse::MsgReplyHasTx(has))) | ||
| } | ||
| 9 => { | ||
| Ok(Message::MsgQuery(MsgRequest::MsgGetSizes)) | ||
| } | ||
| 10 => { | ||
| d.array()?; | ||
| let capacity = d.decode()?; | ||
| let size_in_bytes = d.decode()?; | ||
| let number_of_tx = d.decode()?; | ||
| Ok( | ||
| Message::MsgResponse(MsgResponse::MsgReplyGetSizes(MempoolSizeAndCapacity { | ||
| capacity_in_bytes : capacity, | ||
| size_in_bytes : size_in_bytes, | ||
| number_of_txs : number_of_tx, | ||
| })) | ||
| ) | ||
| } | ||
| _ => Err(decode::Error::message( | ||
| "can't decode Message", | ||
| )) | ||
| } | ||
| } | ||
|
|
||
| fn nil() -> Option<Self> { | ||
| None | ||
| } | ||
| } | ||
|
|
||
| impl Encode<()> for MsgRequest { | ||
| fn encode<W: encode::Write>( | ||
| &self, | ||
| e: &mut Encoder<W>, | ||
| _ctx: &mut (), | ||
| ) -> Result<(), encode::Error<W::Error>> { | ||
| match self { | ||
| MsgRequest::MsgAwaitAcquire => { | ||
| e.array(1)?.u16(1)?; | ||
| }, | ||
| MsgRequest::MsgGetSizes => { | ||
| e.array(1)?.u16(9)?; | ||
| }, | ||
| MsgRequest::MsgHasTx(tx) => { | ||
| e.array(2)?.u16(7)?; | ||
| e.encode(tx)?; | ||
| }, | ||
| MsgRequest::MsgNextTx => { | ||
| e.array(1)?.u16(5)?; | ||
| }, | ||
| MsgRequest::MsgRelease => { | ||
| e.array(1)?.u16(3)?; | ||
| }, | ||
|
|
||
| } | ||
| log::debug!("encode message: {:?}",self); | ||
| Ok(()) | ||
| } | ||
| } | ||
|
|
||
| impl Encode<()> for MsgResponse { | ||
| fn encode<W: encode::Write>( | ||
| &self, | ||
| e: &mut Encoder<W>, | ||
| _ctx: &mut (), | ||
| ) -> Result<(), encode::Error<W::Error>> { | ||
| match self { | ||
| MsgResponse::MsgReplyGetSizes(sz) => { | ||
| e.array(2)?.u16(10)?; | ||
| e.array(3)?; | ||
| e.encode(sz.capacity_in_bytes)?; | ||
| e.encode(sz.size_in_bytes)?; | ||
| e.encode(sz.number_of_txs)?; | ||
| }, | ||
| MsgResponse::MsgReplyHasTx(tx) => { | ||
| e.array(2)?.u16(8)?; | ||
| e.encode(tx)?; | ||
| }, | ||
| MsgResponse::MsgReplyNextTx(None) => { | ||
| e.array(1)?.u16(6)?; | ||
| }, | ||
| MsgResponse::MsgReplyNextTx(Some(tx)) => { | ||
| e.array(2)?.u16(6)?; | ||
| e.encode(tx.to_string())?; | ||
| }, | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| fn is_nil(&self) -> bool { | ||
| false | ||
| } | ||
| } |
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