From 1d7d1a3499d2901d02085cacf9bae5fb76b678f8 Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Mon, 29 Aug 2016 19:22:34 +0200 Subject: contracts/release: move package release to contracts/ This change also deletes generator.go, moving the only interesting line in it into release.go. The binding has been regenerated with abigen from develop and solc v0.3.6. --- release/release.go | 150 ----------------------------------------------------- 1 file changed, 150 deletions(-) delete mode 100644 release/release.go (limited to 'release/release.go') diff --git a/release/release.go b/release/release.go deleted file mode 100644 index 21b5e2ce2..000000000 --- a/release/release.go +++ /dev/null @@ -1,150 +0,0 @@ -// Copyright 2016 The go-ethereum Authors -// This file is part of the go-ethereum library. -// -// The go-ethereum library is free software: you can redistribute it and/or modify -// it under the terms of the GNU Lesser General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// The go-ethereum library is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU Lesser General Public License for more details. -// -// You should have received a copy of the GNU Lesser General Public License -// along with the go-ethereum library. If not, see . - -// Package release contains the node service that tracks client releases. -package release - -import ( - "fmt" - "strings" - "time" - - "github.com/ethereum/go-ethereum/accounts/abi/bind" - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/eth" - "github.com/ethereum/go-ethereum/logger" - "github.com/ethereum/go-ethereum/logger/glog" - "github.com/ethereum/go-ethereum/node" - "github.com/ethereum/go-ethereum/p2p" - "github.com/ethereum/go-ethereum/rpc" - "golang.org/x/net/context" -) - -// Interval to check for new releases -const releaseRecheckInterval = time.Hour - -// Config contains the configurations of the release service. -type Config struct { - Oracle common.Address // Ethereum address of the release oracle - Major uint32 // Major version component of the release - Minor uint32 // Minor version component of the release - Patch uint32 // Patch version component of the release - Commit [20]byte // Git SHA1 commit hash of the release -} - -// ReleaseService is a node service that periodically checks the blockchain for -// newly released versions of the client being run and issues a warning to the -// user about it. -type ReleaseService struct { - config Config // Current version to check releases against - oracle *ReleaseOracle // Native binding to the release oracle contract - quit chan chan error // Quit channel to terminate the version checker -} - -// NewReleaseService creates a new service to periodically check for new client -// releases and notify the user of such. -func NewReleaseService(ctx *node.ServiceContext, config Config) (node.Service, error) { - // Retrieve the Ethereum service dependency to access the blockchain - var ethereum *eth.Ethereum - if err := ctx.Service(ðereum); err != nil { - return nil, err - } - // Construct the release service - contract, err := NewReleaseOracle(config.Oracle, eth.NewContractBackend(ethereum)) - if err != nil { - return nil, err - } - return &ReleaseService{ - config: config, - oracle: contract, - quit: make(chan chan error), - }, nil -} - -// Protocols returns an empty list of P2P protocols as the release service does -// not have a networking component. -func (r *ReleaseService) Protocols() []p2p.Protocol { return nil } - -// APIs returns an empty list of RPC descriptors as the release service does not -// expose any functioanlity to the outside world. -func (r *ReleaseService) APIs() []rpc.API { return nil } - -// Start spawns the periodic version checker goroutine -func (r *ReleaseService) Start(server *p2p.Server) error { - go r.checker() - return nil -} - -// Stop terminates all goroutines belonging to the service, blocking until they -// are all terminated. -func (r *ReleaseService) Stop() error { - errc := make(chan error) - r.quit <- errc - return <-errc -} - -// checker runs indefinitely in the background, periodically checking for new -// client releases. -func (r *ReleaseService) checker() { - // Set up the timers to periodically check for releases - timer := time.NewTimer(0) // Immediately fire a version check - defer timer.Stop() - - for { - select { - // If the time arrived, check for a new release - case <-timer.C: - // Rechedule the timer before continuing - timer.Reset(releaseRecheckInterval) - - // Retrieve the current version, and handle missing contracts gracefully - ctx, _ := context.WithTimeout(context.Background(), time.Second*5) - opts := &bind.CallOpts{Context: ctx} - version, err := r.oracle.CurrentVersion(opts) - if err != nil { - if err == bind.ErrNoCode { - glog.V(logger.Debug).Infof("Release oracle not found at %x", r.config.Oracle) - continue - } - glog.V(logger.Error).Infof("Failed to retrieve current release: %v", err) - continue - } - // Version was successfully retrieved, notify if newer than ours - if version.Major > r.config.Major || - (version.Major == r.config.Major && version.Minor > r.config.Minor) || - (version.Major == r.config.Major && version.Minor == r.config.Minor && version.Patch > r.config.Patch) { - - warning := fmt.Sprintf("Client v%d.%d.%d-%x seems older than the latest upstream release v%d.%d.%d-%x", - r.config.Major, r.config.Minor, r.config.Patch, r.config.Commit[:4], version.Major, version.Minor, version.Patch, version.Commit[:4]) - howtofix := fmt.Sprintf("Please check https://github.com/ethereum/go-ethereum/releases for new releases") - separator := strings.Repeat("-", len(warning)) - - glog.V(logger.Warn).Info(separator) - glog.V(logger.Warn).Info(warning) - glog.V(logger.Warn).Info(howtofix) - glog.V(logger.Warn).Info(separator) - } else { - glog.V(logger.Debug).Infof("Client v%d.%d.%d-%x seems up to date with upstream v%d.%d.%d-%x", - r.config.Major, r.config.Minor, r.config.Patch, r.config.Commit[:4], version.Major, version.Minor, version.Patch, version.Commit[:4]) - } - - // If termination was requested, return - case errc := <-r.quit: - errc <- nil - return - } - } -} -- cgit v1.2.3