multi: Integrate mixpool and propagate p2p mixing messages

go.mod

@@ -25,6 +25,7 @@ require (
 	github.com/decred/dcrd/gcs/v4 v4.0.0
 	github.com/decred/dcrd/lru v1.1.2
 	github.com/decred/dcrd/math/uint256 v1.0.1
+	github.com/decred/dcrd/mixing v0.0.1
 	github.com/decred/dcrd/peer/v3 v3.0.2
 	github.com/decred/dcrd/rpc/jsonrpc/types/v4 v4.0.0
 	github.com/decred/dcrd/rpcclient/v8 v8.0.0
@@ -38,18 +39,20 @@ require (
 	github.com/jrick/bitset v1.0.0
 	github.com/jrick/logrotate v1.0.0
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
-	golang.org/x/sys v0.8.0
-	golang.org/x/term v0.5.0
+	golang.org/x/sys v0.20.0
+	golang.org/x/term v0.20.0
 	lukechampine.com/blake3 v1.3.0
 )
 
 require (
 	github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412 // indirect
+	github.com/companyzero/sntrup4591761 v0.0.0-20220309191932-9e0f3af2f07a // indirect
 	github.com/dchest/siphash v1.2.3 // indirect
 	github.com/decred/dcrd/dcrec/edwards/v2 v2.0.3 // indirect
 	github.com/decred/dcrd/hdkeychain/v3 v3.1.1 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
 )
 
 replace (
@@ -75,6 +78,7 @@ replace (
 	github.com/decred/dcrd/limits => ./limits
 	github.com/decred/dcrd/lru => ./lru
 	github.com/decred/dcrd/math/uint256 => ./math/uint256
+	github.com/decred/dcrd/mixing => ./mixing
 	github.com/decred/dcrd/peer/v3 => ./peer
 	github.com/decred/dcrd/rpc/jsonrpc/types/v4 => ./rpc/jsonrpc/types
 	github.com/decred/dcrd/rpcclient/v8 => ./rpcclient

go.sum

@@ -1,5 +1,9 @@
+decred.org/cspp/v2 v2.2.0 h1:VSOUC1w0Wo+QOGS0r1XO6TLnO16X67KuvpDmRRYyr08=
+decred.org/cspp/v2 v2.2.0/go.mod h1:9nO3bfvCheOPIFZw5f6sRQ42CjBFB5RKSaJ9Iq6G4MA=
 github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412 h1:w1UutsfOrms1J05zt7ISrnJIXKzwaspym5BTKGx93EI=
 github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412/go.mod h1:WPjqKcmVOxf0XSf3YxCJs6N6AOSrOx3obionmG7T0y0=
+github.com/companyzero/sntrup4591761 v0.0.0-20220309191932-9e0f3af2f07a h1:clYxJ3Os0EQUKDDVU8M0oipllX0EkuFNBfhVQuIfyF0=
+github.com/companyzero/sntrup4591761 v0.0.0-20220309191932-9e0f3af2f07a/go.mod h1:z/9Ck1EDixEbBbZ2KH2qNHekEmDLTOZ+FyoIPWWSVOI=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dchest/siphash v1.2.3 h1:QXwFc8cFOR2dSa/gE6o/HokBMWtLUaNDVd+22aKHeEA=
@@ -53,11 +57,13 @@ github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70
 github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7/go.mod h1:q4W45IWZaF22tdD+VEXcAWRA037jwmWEB5VWYORlTpc=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
-golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc h1:zK/HqS5bZxDptfPJNq8v7vJfXtkU7r9TLIoSr1bXaP4=
 golang.org/x/net v0.0.0-20200813134508-3edf25e44fcc/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.21.0 h1:AQyQV4dYCvJ7vGmJyKki9+PBdyvhkSd8EIx/qb0AYv4=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -69,14 +75,14 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.5.0 h1:n2a8QNdAb0sZNpU9R1ALUXBbY+w51fCQDN+7EdxNBsY=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw=
+golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=

internal/blockchain/chain.go

@@ -297,6 +297,11 @@ type BlockChain struct {
 	bulkImportMode bool
 }
 
+// ChainParams returns the chain parameters.
+func (b *BlockChain) ChainParams() *chaincfg.Params {
+	return b.chainParams
+}
+
 const (
 	// stakeMajorityCacheKeySize is comprised of the stake version and the
 	// hash size.  The stake version is a little endian uint32, hence we

internal/mempool/mempool.go

@@ -1084,6 +1084,22 @@ func (mp *TxPool) fetchInputUtxos(tx *dcrutil.Tx, isTreasuryEnabled bool) (*bloc
 	return utxoView, nil
 }
 
+// IsSpent returns whether the outpoint is spent by any transient or staged
+// transaction in the tx pool.  Outpoints that are not spent by transactions
+// in the pool may not exist or may be spent in blocks.
+func (mp *TxPool) IsSpent(outpoint wire.OutPoint) bool {
+	mp.mtx.RLock()
+	defer mp.mtx.RUnlock()
+
+	_, exists := mp.outpoints[outpoint]
+	if exists {
+		return true
+	}
+
+	_, exists = mp.stagedOutpoints[outpoint]
+	return exists
+}
+
 // FetchTransaction returns the requested transaction from the transaction pool.
 // This only fetches from the main and stage transaction pools and does not
 // include orphans.

internal/netsync/interface.go

@@ -6,6 +6,7 @@ package netsync
 
 import (
 	"github.com/decred/dcrd/dcrutil/v4"
+	"github.com/decred/dcrd/mixing"
 )
 
 // PeerNotifier provides an interface to notify peers of status changes related
@@ -14,4 +15,8 @@ type PeerNotifier interface {
 	// AnnounceNewTransactions generates and relays inventory vectors and
 	// notifies websocket clients of the passed transactions.
 	AnnounceNewTransactions(txns []*dcrutil.Tx)
+
+	// AnnounceMixMessage generates and relays inventory vectors of the
+	// passed messages.
+	AnnounceMixMessages(msgs []mixing.Message)
 }