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author | Jim Posen <jimpo@coinbase.com> | 2018-01-23 17:27:06 -0800 |
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committer | Jim Posen <jim.posen@gmail.com> | 2018-08-25 10:02:37 -0700 |
commit | cd09c7925b5af4104834971cfe072251e3ac2bda (patch) | |
tree | c9205cf5497ba8a07b64b15738613b0133a3231e | |
parent | c1855f6052aca806fdb51be01b30dfeee8b55f40 (diff) | |
download | bitcoin-cd09c7925b5af4104834971cfe072251e3ac2bda.tar.xz |
blockfilter: Serialization methods on BlockFilter.
-rw-r--r-- | src/blockfilter.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/src/blockfilter.h b/src/blockfilter.h index afb8d7a7b7..010f868aee 100644 --- a/src/blockfilter.h +++ b/src/blockfilter.h @@ -82,7 +82,8 @@ enum BlockFilterType : uint8_t }; /** - * Complete block filter struct as defined in BIP 157. + * Complete block filter struct as defined in BIP 157. Serialization matches + * payload of "cfilter" messages. */ class BlockFilter { @@ -104,6 +105,35 @@ public: { return m_filter.GetEncoded(); } + + template <typename Stream> + void Serialize(Stream& s) const { + s << m_block_hash + << static_cast<uint8_t>(m_filter_type) + << m_filter.GetEncoded(); + } + + template <typename Stream> + void Unserialize(Stream& s) { + std::vector<unsigned char> encoded_filter; + uint8_t filter_type; + + s >> m_block_hash + >> filter_type + >> encoded_filter; + + m_filter_type = static_cast<BlockFilterType>(filter_type); + + switch (m_filter_type) { + case BlockFilterType::BASIC: + m_filter = GCSFilter(m_block_hash.GetUint64(0), m_block_hash.GetUint64(1), + BASIC_FILTER_P, BASIC_FILTER_M, std::move(encoded_filter)); + break; + + default: + throw std::ios_base::failure("unknown filter_type"); + } + } }; #endif // BITCOIN_BLOCKFILTER_H |