Merge pull request #34 from ava-labs/devv0.3.0-rc.5

Dev

1 files changed, 0 insertions, 135 deletions

diff --git a/node/service.go b/node/service.go
deleted file mode 100644
index 7b3a4ff..0000000
--- a/node/service.go
+++ /dev/null
@@ -1,135 +0,0 @@
-// Copyright 2015 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 <http://www.gnu.org/licenses/>.
-
-package node
-
-import (
-	"path/filepath"
-	"reflect"
-
-	"github.com/ava-labs/coreth/accounts"
-	"github.com/ava-labs/coreth/core/rawdb"
-	"github.com/ava-labs/coreth/rpc"
-	"github.com/ava-labs/go-ethereum/ethdb"
-	"github.com/ava-labs/go-ethereum/event"
-	"github.com/ava-labs/go-ethereum/p2p"
-)
-
-// ServiceContext is a collection of service independent options inherited from
-// the protocol stack, that is passed to all constructors to be optionally used;
-// as well as utility methods to operate on the service environment.
-type ServiceContext struct {
-	config         *Config
-	services       map[reflect.Type]Service // Index of the already constructed services
-	EventMux       *event.TypeMux           // Event multiplexer used for decoupled notifications
-	AccountManager *accounts.Manager        // Account manager created by the node.
-}
-
-// OpenDatabase opens an existing database with the given name (or creates one
-// if no previous can be found) from within the node's data directory. If the
-// node is an ephemeral one, a memory database is returned.
-func (ctx *ServiceContext) OpenDatabase(name string, cache int, handles int, namespace string) (ethdb.Database, error) {
-	if ctx.config.DataDir == "" {
-		return rawdb.NewMemoryDatabase(), nil
-	}
-	return rawdb.NewLevelDBDatabase(ctx.config.ResolvePath(name), cache, handles, namespace)
-}
-
-// OpenDatabaseWithFreezer opens an existing database with the given name (or
-// creates one if no previous can be found) from within the node's data directory,
-// also attaching a chain freezer to it that moves ancient chain data from the
-// database to immutable append-only files. If the node is an ephemeral one, a
-// memory database is returned.
-func (ctx *ServiceContext) OpenDatabaseWithFreezer(name string, cache int, handles int, freezer string, namespace string) (ethdb.Database, error) {
-	if ctx.config.DataDir == "" {
-		return rawdb.NewMemoryDatabase(), nil
-	}
-	root := ctx.config.ResolvePath(name)
-
-	switch {
-	case freezer == "":
-		freezer = filepath.Join(root, "ancient")
-	case !filepath.IsAbs(freezer):
-		freezer = ctx.config.ResolvePath(freezer)
-	}
-	return rawdb.NewLevelDBDatabaseWithFreezer(root, cache, handles, freezer, namespace)
-}
-
-// ResolvePath resolves a user path into the data directory if that was relative
-// and if the user actually uses persistent storage. It will return an empty string
-// for emphemeral storage and the user's own input for absolute paths.
-func (ctx *ServiceContext) ResolvePath(path string) string {
-	return ctx.config.ResolvePath(path)
-}
-
-// Service retrieves a currently running service registered of a specific type.
-func (ctx *ServiceContext) Service(service interface{}) error {
-	element := reflect.ValueOf(service).Elem()
-	if running, ok := ctx.services[element.Type()]; ok {
-		element.Set(reflect.ValueOf(running))
-		return nil
-	}
-	return ErrServiceUnknown
-}
-
-// ExtRPCEnabled returns the indicator whether node enables the external
-// RPC(http, ws or graphql).
-func (ctx *ServiceContext) ExtRPCEnabled() bool {
-	return ctx.config.ExtRPCEnabled()
-}
-
-func NewServiceContext(cfg *Config, mux *event.TypeMux) (ServiceContext, string, error) {
-	if cfg == nil {
-		cfg = &Config{}
-	}
-	am, ep, err := makeAccountManager(cfg)
-	return ServiceContext{
-		config:         cfg,
-		services:       make(map[reflect.Type]Service),
-		EventMux:       mux,
-		AccountManager: am,
-	}, ep, err
-}
-
-// ServiceConstructor is the function signature of the constructors needed to be
-// registered for service instantiation.
-type ServiceConstructor func(ctx *ServiceContext) (Service, error)
-
-// Service is an individual protocol that can be registered into a node.
-//
-// Notes:
-//
-// • Service life-cycle management is delegated to the node. The service is allowed to
-// initialize itself upon creation, but no goroutines should be spun up outside of the
-// Start method.
-//
-// • Restart logic is not required as the node will create a fresh instance
-// every time a service is started.
-type Service interface {
-	// Protocols retrieves the P2P protocols the service wishes to start.
-	Protocols() []p2p.Protocol
-
-	// APIs retrieves the list of RPC descriptors the service provides
-	APIs() []rpc.API
-
-	// Start is called after all services have been constructed and the networking
-	// layer was also initialized to spawn any goroutines required by the service.
-	Start(server *p2p.Server) error
-
-	// Stop terminates all goroutines belonging to the service, blocking until they
-	// are all terminated.
-	Stop() error
-}