diff options
Diffstat (limited to 'node/node.go')
| -rw-r--r-- | node/node.go | 55 |
1 files changed, 54 insertions, 1 deletions
diff --git a/node/node.go b/node/node.go index 6d9290034..7d3a10874 100644 --- a/node/node.go +++ b/node/node.go @@ -55,7 +55,9 @@ type Node struct { serviceFuncs []ServiceConstructor // Service constructors (in dependency order) services map[reflect.Type]Service // Currently running services - rpcAPIs []rpc.API // List of APIs currently provided by the node + rpcAPIs []rpc.API // List of APIs currently provided by the node + inprocHandler *rpc.Server // In-process RPC request handler to process the API requests + ipcEndpoint string // IPC endpoint to listen at (empty = IPC disabled) ipcListener net.Listener // IPC RPC listener socket to serve API requests ipcHandler *rpc.Server // IPC RPC request handler to process the API requests @@ -217,16 +219,22 @@ func (n *Node) startRPC(services map[reflect.Type]Service) error { apis = append(apis, service.APIs()...) } // Start the various API endpoints, terminating all in case of errors + if err := n.startInProc(apis); err != nil { + return err + } if err := n.startIPC(apis); err != nil { + n.stopInProc() return err } if err := n.startHTTP(n.httpEndpoint, apis, n.httpWhitelist, n.httpCors); err != nil { n.stopIPC() + n.stopInProc() return err } if err := n.startWS(n.wsEndpoint, apis, n.wsWhitelist, n.wsDomains); err != nil { n.stopHTTP() n.stopIPC() + n.stopInProc() return err } // All API endpoints started successfully @@ -234,6 +242,28 @@ func (n *Node) startRPC(services map[reflect.Type]Service) error { return nil } +// startInProc initializes an in-process RPC endpoint. +func (n *Node) startInProc(apis []rpc.API) error { + // Register all the APIs exposed by the services + handler := rpc.NewServer() + for _, api := range apis { + if err := handler.RegisterName(api.Namespace, api.Service); err != nil { + return err + } + glog.V(logger.Debug).Infof("InProc registered %T under '%s'", api.Service, api.Namespace) + } + n.inprocHandler = handler + return nil +} + +// stopInProc terminates the in-process RPC endpoint. +func (n *Node) stopInProc() { + if n.inprocHandler != nil { + n.inprocHandler.Stop() + n.inprocHandler = nil + } +} + // startIPC initializes and starts the IPC RPC endpoint. func (n *Node) startIPC(apis []rpc.API) error { // Short circuit if the IPC endpoint isn't being exposed @@ -468,6 +498,19 @@ func (n *Node) Restart() error { return nil } +// Attach creates an RPC client attached to an in-process API handler. +func (n *Node) Attach() (rpc.Client, error) { + n.lock.RLock() + defer n.lock.RUnlock() + + // Short circuit if the node's not running + if n.server == nil { + return nil, ErrNodeStopped + } + // Otherwise attach to the API and return + return rpc.NewInProcRPCClient(n.inprocHandler), nil +} + // Server retrieves the currently running P2P network layer. This method is meant // only to inspect fields of the currently running server, life cycle management // should be left to this Node entity. @@ -506,6 +549,16 @@ func (n *Node) IPCEndpoint() string { return n.ipcEndpoint } +// HTTPEndpoint retrieves the current HTTP endpoint used by the protocol stack. +func (n *Node) HTTPEndpoint() string { + return n.httpEndpoint +} + +// WSEndpoint retrieves the current WS endpoint used by the protocol stack. +func (n *Node) WSEndpoint() string { + return n.wsEndpoint +} + // EventMux retrieves the event multiplexer used by all the network services in // the current protocol stack. func (n *Node) EventMux() *event.TypeMux { |