Properly split dart:_vmservice across sdk and runtime

runtime/lib/vmservice/vmservice.dart

Index: runtime/lib/vmservice/vmservice.dart
diff --git a/runtime/lib/vmservice/vmservice.dart b/runtime/lib/vmservice/vmservice.dart
deleted file mode 100644
index 3c66673731d15fd3ff931823071355d469643396..0000000000000000000000000000000000000000
--- a/runtime/lib/vmservice/vmservice.dart
+++ /dev/null
@@ -1,331 +0,0 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library vmservice;
-
-import 'dart:async';
-import 'dart:convert';
-import 'dart:isolate';
-import 'dart:typed_data';
-
-part 'client.dart';
-part 'constants.dart';
-part 'running_isolate.dart';
-part 'running_isolates.dart';
-part 'message.dart';
-part 'message_router.dart';
-
-final RawReceivePort isolateLifecyclePort = new RawReceivePort();
-final RawReceivePort scriptLoadPort = new RawReceivePort();
-
-typedef ShutdownCallback();
-
-// These must be kept in sync with the declarations in vm/json_stream.h.
-const kInvalidParams = -32602;
-const kInternalError = -32603;
-const kStreamAlreadySubscribed = 103;
-const kStreamNotSubscribed = 104;
-
-var _errorMessages = {
-  kInvalidParams: 'Invalid params',
-  kInternalError: 'Internal error',
-  kStreamAlreadySubscribed: 'Stream already subscribed',
-  kStreamNotSubscribed: 'Stream not subscribed',
-};
-
-String encodeRpcError(Message message, int code, {String details}) {
-  var response = {
-    'jsonrpc': '2.0',
-    'id' : message.serial,
-    'error' : {
-      'code': code,
-      'message': _errorMessages[code],
-    },
-  };
-  if (details != null) {
-    response['error']['data'] = {
-      'details': details,
-    };
-  }
-  return JSON.encode(response);
-}
-
-String encodeResult(Message message, Map result) {
-  var response = {
-    'jsonrpc': '2.0',
-    'id' : message.serial,
-    'result' : result,
-  };
-  return JSON.encode(response);
-}
-
-
-class VMService extends MessageRouter {
-  static VMService _instance;
-
-  /// Collection of currently connected clients.
-  final Set<Client> clients = new Set<Client>();
-
-  /// Collection of currently running isolates.
-  RunningIsolates runningIsolates = new RunningIsolates();
-
-  /// A port used to receive events from the VM.
-  final RawReceivePort eventPort;
-
-  ShutdownCallback onShutdown;
-
-  void _addClient(Client client) {
-    assert(client.streams.isEmpty);
-    clients.add(client);
-  }
-
-  void _removeClient(Client client) {
-    clients.remove(client);
-    for (var streamId in client.streams) {
-      if (!_isAnyClientSubscribed(streamId)) {
-        _vmCancelStream(streamId);
-      }
-    }
-  }
-
-  void _eventMessageHandler(List eventMessage) {
-    var streamId = eventMessage[0];
-    var event = eventMessage[1];
-    for (var client in clients) {
-      if (client.sendEvents && client.streams.contains(streamId)) {
-        client.post(event);
-      }
-    }
-  }
-
-  void _controlMessageHandler(int code,
-                              int portId,
-                              SendPort sp,
-                              String name) {
-    switch (code) {
-      case Constants.ISOLATE_STARTUP_MESSAGE_ID:
-        runningIsolates.isolateStartup(portId, sp, name);
-      break;
-      case Constants.ISOLATE_SHUTDOWN_MESSAGE_ID:
-        runningIsolates.isolateShutdown(portId, sp);
-      break;
-    }
-  }
-
-  void _exit() {
-    isolateLifecyclePort.close();
-    scriptLoadPort.close();
-    // Create a copy of the set as a list because client.disconnect() will
-    // alter the connected clients set.
-    var clientsList = clients.toList();
-    for (var client in clientsList) {
-      client.disconnect();
-    }
-    // Call embedder shutdown hook after the internal shutdown.
-    if (onShutdown != null) {
-      onShutdown();
-    }
-    _onExit();
-  }
-
-  void messageHandler(message) {
-    if (message is List) {
-      if (message.length == 2) {
-        // This is an event.
-        assert(message[0] is String);
-        assert(message[1] is String || message[1] is Uint8List);
-        _eventMessageHandler(message);
-        return;
-      }
-      if (message.length == 1) {
-        // This is a control message directing the vm service to exit.
-        assert(message[0] == Constants.SERVICE_EXIT_MESSAGE_ID);
-        _exit();
-        return;
-      }
-      if (message.length == 4) {
-        // This is a message informing us of the birth or death of an
-        // isolate.
-        _controlMessageHandler(message[0], message[1], message[2], message[3]);
-        return;
-      }
-    }
-    Logger.root.severe(
-        'Internal vm-service error: ignoring illegal message: $message');
-  }
-
-  void _notSupported(_) {
-    throw new UnimplementedError('Service script loading not supported.');
-  }
-
-  VMService._internal()
-      : eventPort = isolateLifecyclePort {
-    scriptLoadPort.handler = _notSupported;
-    eventPort.handler = messageHandler;
-  }
-
-  factory VMService() {
-    if (VMService._instance == null) {
-      VMService._instance = new VMService._internal();
-      _onStart();
-    }
-    return _instance;
-  }
-
-  void _clientCollection(Message message) {
-    var members = [];
-    var result = {};
-    clients.forEach((client) {
-      members.add(client.toJson());
-    });
-    result['type'] = 'ClientList';
-    result['members'] = members;
-    message.setResponse(JSON.encode(result));
-  }
-
-  bool _isAnyClientSubscribed(String streamId) {
-    for (var client in clients) {
-      if (client.streams.contains(streamId)) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  Future<String> _streamListen(Message message) async {
-    var client = message.client;
-    var streamId = message.params['streamId'];
-
-    if (client.streams.contains(streamId)) {
-      return encodeRpcError(message, kStreamAlreadySubscribed);
-    }
-    if (!_isAnyClientSubscribed(streamId)) {
-      if (!_vmListenStream(streamId)) {
-        return encodeRpcError(
-            message, kInvalidParams,
-            details:"streamListen: invalid 'streamId' parameter: ${streamId}");
-      }
-    }
-    client.streams.add(streamId);
-
-    var result = { 'type' : 'Success' };
-    return encodeResult(message, result);
-  }
-
-  Future<String> _streamCancel(Message message) async {
-    var client = message.client;
-    var streamId = message.params['streamId'];
-
-    if (!client.streams.contains(streamId)) {
-      return encodeRpcError(message, kStreamNotSubscribed);
-    }
-    client.streams.remove(streamId);
-    if (!_isAnyClientSubscribed(streamId)) {
-      _vmCancelStream(streamId);
-    }
-
-    var result = { 'type' : 'Success' };
-    return encodeResult(message, result);
-  }
-
-  // TODO(johnmccutchan): Turn this into a command line tool that uses the
-  // service library.
-  Future<String> _getCrashDump(Message message) async {
-    var client = message.client;
-    final perIsolateRequests = [
-        // ?isolateId=<isolate id> will be appended to each of these requests.
-        // Isolate information.
-        Uri.parse('getIsolate'),
-        // State of heap.
-        Uri.parse('_getAllocationProfile'),
-        // Call stack + local variables.
-        Uri.parse('getStack?_full=true'),
-    ];
-
-    // Snapshot of running isolates.
-    var isolates = runningIsolates.isolates.values.toList();
-
-    // Collect the mapping from request uris to responses.
-    var responses = {
-    };
-
-    // Request VM.
-    var getVM = Uri.parse('getVM');
-    var getVmResponse = JSON.decode(
-        await new Message.fromUri(client, getVM).sendToVM());
-    responses[getVM.toString()] = getVmResponse['result'];
-
-    // Request command line flags.
-    var getFlagList = Uri.parse('getFlagList');
-    var getFlagListResponse = JSON.decode(
-        await new Message.fromUri(client, getFlagList).sendToVM());
-    responses[getFlagList.toString()] = getFlagListResponse['result'];
-
-    // Make requests to each isolate.
-    for (var isolate in isolates) {
-      for (var request in perIsolateRequests) {
-        var message = new Message.forIsolate(client, request, isolate);
-        // Decode the JSON and and insert it into the map. The map key
-        // is the request Uri.
-        var response = JSON.decode(await isolate.route(message));
-        responses[message.toUri().toString()] = response['result'];
-      }
-      // Dump the object id ring requests.
-      var message =
-          new Message.forIsolate(client, Uri.parse('_dumpIdZone'), isolate);
-      var response = JSON.decode(await isolate.route(message));
-      // Insert getObject requests into responses map.
-      for (var object in response['result']['objects']) {
-        final requestUri =
-            'getObject&isolateId=${isolate.serviceId}?objectId=${object["id"]}';
-        responses[requestUri] = object;
-      }
-    }
-
-    // Encode the entire crash dump.
-    return encodeResult(message, responses);
-  }
-
-  Future<String> route(Message message) {
-    if (message.completed) {
-      return message.response;
-    }
-    // TODO(turnidge): Update to json rpc.  BEFORE SUBMIT.
-    if ((message.path.length == 1) && (message.path[0] == 'clients')) {
-      _clientCollection(message);
-      return message.response;
-    }
-    if (message.method == '_getCrashDump') {
-      return _getCrashDump(message);
-    }
-    if (message.method == 'streamListen') {
-      return _streamListen(message);
-    }
-    if (message.method == 'streamCancel') {
-      return _streamCancel(message);
-    }
-    if (message.params['isolateId'] != null) {
-      return runningIsolates.route(message);
-    }
-    return message.sendToVM();
-  }
-}
-
-RawReceivePort boot() {
-  // Return the port we expect isolate startup and shutdown messages on.
-  return isolateLifecyclePort;
-}
-
-void _registerIsolate(int port_id, SendPort sp, String name) {
-  var service = new VMService();
-  service.runningIsolates.isolateStartup(port_id, sp, name);
-}
-
-void _onStart() native "VMService_OnStart";
-
-void _onExit() native "VMService_OnExit";
-
-bool _vmListenStream(String streamId) native "VMService_ListenStream";
-
-void _vmCancelStream(String streamId) native "VMService_CancelStream";