Merge pull request #201 from Bytom/v0.1

[bytom/vapor.git] / vendor / github.com / btcsuite / btcd / wire / msgfilterload.go

diff --git a/vendor/github.com/btcsuite/btcd/wire/msgfilterload.go b/vendor/github.com/btcsuite/btcd/wire/msgfilterload.go
deleted file mode 100644 (file)
index dbda737..0000000
--- a/vendor/github.com/btcsuite/btcd/wire/msgfilterload.go
+++ /dev/null
@@ -1,136 +0,0 @@
-// Copyright (c) 2014-2015 The btcsuite developers
-// Use of this source code is governed by an ISC
-// license that can be found in the LICENSE file.
-
-package wire
-
-import (
-       "fmt"
-       "io"
-)
-
-// BloomUpdateType specifies how the filter is updated when a match is found
-type BloomUpdateType uint8
-
-const (
-       // BloomUpdateNone indicates the filter is not adjusted when a match is
-       // found.
-       BloomUpdateNone BloomUpdateType = 0
-
-       // BloomUpdateAll indicates if the filter matches any data element in a
-       // public key script, the outpoint is serialized and inserted into the
-       // filter.
-       BloomUpdateAll BloomUpdateType = 1
-
-       // BloomUpdateP2PubkeyOnly indicates if the filter matches a data
-       // element in a public key script and the script is of the standard
-       // pay-to-pubkey or multisig, the outpoint is serialized and inserted
-       // into the filter.
-       BloomUpdateP2PubkeyOnly BloomUpdateType = 2
-)
-
-const (
-       // MaxFilterLoadHashFuncs is the maximum number of hash functions to
-       // load into the Bloom filter.
-       MaxFilterLoadHashFuncs = 50
-
-       // MaxFilterLoadFilterSize is the maximum size in bytes a filter may be.
-       MaxFilterLoadFilterSize = 36000
-)
-
-// MsgFilterLoad implements the Message interface and represents a bitcoin
-// filterload message which is used to reset a Bloom filter.
-//
-// This message was not added until protocol version BIP0037Version.
-type MsgFilterLoad struct {
-       Filter    []byte
-       HashFuncs uint32
-       Tweak     uint32
-       Flags     BloomUpdateType
-}
-
-// BtcDecode decodes r using the bitcoin protocol encoding into the receiver.
-// This is part of the Message interface implementation.
-func (msg *MsgFilterLoad) BtcDecode(r io.Reader, pver uint32, enc MessageEncoding) error {
-       if pver < BIP0037Version {
-               str := fmt.Sprintf("filterload message invalid for protocol "+
-                       "version %d", pver)
-               return messageError("MsgFilterLoad.BtcDecode", str)
-       }
-
-       var err error
-       msg.Filter, err = ReadVarBytes(r, pver, MaxFilterLoadFilterSize,
-               "filterload filter size")
-       if err != nil {
-               return err
-       }
-
-       err = readElements(r, &msg.HashFuncs, &msg.Tweak, &msg.Flags)
-       if err != nil {
-               return err
-       }
-
-       if msg.HashFuncs > MaxFilterLoadHashFuncs {
-               str := fmt.Sprintf("too many filter hash functions for message "+
-                       "[count %v, max %v]", msg.HashFuncs, MaxFilterLoadHashFuncs)
-               return messageError("MsgFilterLoad.BtcDecode", str)
-       }
-
-       return nil
-}
-
-// BtcEncode encodes the receiver to w using the bitcoin protocol encoding.
-// This is part of the Message interface implementation.
-func (msg *MsgFilterLoad) BtcEncode(w io.Writer, pver uint32, enc MessageEncoding) error {
-       if pver < BIP0037Version {
-               str := fmt.Sprintf("filterload message invalid for protocol "+
-                       "version %d", pver)
-               return messageError("MsgFilterLoad.BtcEncode", str)
-       }
-
-       size := len(msg.Filter)
-       if size > MaxFilterLoadFilterSize {
-               str := fmt.Sprintf("filterload filter size too large for message "+
-                       "[size %v, max %v]", size, MaxFilterLoadFilterSize)
-               return messageError("MsgFilterLoad.BtcEncode", str)
-       }
-
-       if msg.HashFuncs > MaxFilterLoadHashFuncs {
-               str := fmt.Sprintf("too many filter hash functions for message "+
-                       "[count %v, max %v]", msg.HashFuncs, MaxFilterLoadHashFuncs)
-               return messageError("MsgFilterLoad.BtcEncode", str)
-       }
-
-       err := WriteVarBytes(w, pver, msg.Filter)
-       if err != nil {
-               return err
-       }
-
-       return writeElements(w, msg.HashFuncs, msg.Tweak, msg.Flags)
-}
-
-// Command returns the protocol command string for the message.  This is part
-// of the Message interface implementation.
-func (msg *MsgFilterLoad) Command() string {
-       return CmdFilterLoad
-}
-
-// MaxPayloadLength returns the maximum length the payload can be for the
-// receiver.  This is part of the Message interface implementation.
-func (msg *MsgFilterLoad) MaxPayloadLength(pver uint32) uint32 {
-       // Num filter bytes (varInt) + filter + 4 bytes hash funcs +
-       // 4 bytes tweak + 1 byte flags.
-       return uint32(VarIntSerializeSize(MaxFilterLoadFilterSize)) +
-               MaxFilterLoadFilterSize + 9
-}
-
-// NewMsgFilterLoad returns a new bitcoin filterload message that conforms to
-// the Message interface.  See MsgFilterLoad for details.
-func NewMsgFilterLoad(filter []byte, hashFuncs uint32, tweak uint32, flags BloomUpdateType) *MsgFilterLoad {
-       return &MsgFilterLoad{
-               Filter:    filter,
-               HashFuncs: hashFuncs,
-               Tweak:     tweak,
-               Flags:     flags,
-       }
-}