From 92f9a3e5fa29e0f05c81b348b87cab4f7a94f0c8 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C3=A9ter=20Szil=C3=A1gyi?= Date: Tue, 1 Sep 2015 17:35:14 +0300 Subject: cmd, eth: support switching client modes of operation --- eth/protocol.go | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'eth/protocol.go') diff --git a/eth/protocol.go b/eth/protocol.go index 49f096a3b..0d2b5128d 100644 --- a/eth/protocol.go +++ b/eth/protocol.go @@ -26,6 +26,15 @@ import ( "github.com/ethereum/go-ethereum/rlp" ) +// Mode represents the mode of operation of the eth client. +type Mode int + +const ( + ArchiveMode Mode = iota // Maintain the entire blockchain history + FullMode // Maintain only a recent view of the blockchain + LightMode // Don't maintain any history, rather fetch on demand +) + // Constants to match up protocol versions and messages const ( eth61 = 61 @@ -34,6 +43,14 @@ const ( eth64 = 64 ) +// minimumProtocolVersion is the minimum version of the protocol eth must run to +// support the desired mode of operation. +var minimumProtocolVersion = map[Mode]uint{ + ArchiveMode: eth61, + FullMode: eth63, + LightMode: eth64, +} + // Supported versions of the eth protocol (first is primary). var ProtocolVersions = []uint{eth64, eth63, eth62, eth61} -- cgit v1.2.3