1# Copyright 2015 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5# A singleton map from platform backends to maps of uniquely-identifying 6# remote port (which may be the same as local port) to DevToolsClientBackend. 7# There is no guarantee that the devtools agent is still alive. 8_platform_backends_to_devtools_clients_maps = {} 9 10 11def _RemoveStaleDevToolsClient(platform_backend): 12 """Removes DevTools clients that are no longer connectable.""" 13 devtools_clients_map = _platform_backends_to_devtools_clients_maps.get( 14 platform_backend, {}) 15 devtools_clients_map = { 16 port: client 17 for port, client in devtools_clients_map.iteritems() 18 if client.IsAlive() 19 } 20 _platform_backends_to_devtools_clients_maps[platform_backend] = ( 21 devtools_clients_map) 22 23 24def RegisterDevToolsClient(devtools_client_backend): 25 """Register DevTools client 26 27 This should only be called from DevToolsClientBackend when it is initialized. 28 """ 29 remote_port = str(devtools_client_backend.remote_port) 30 platform_clients = _platform_backends_to_devtools_clients_maps.setdefault( 31 devtools_client_backend.platform_backend, {}) 32 platform_clients[remote_port] = devtools_client_backend 33 34 35def GetDevToolsClients(platform_backend): 36 """Get DevTools clients including the ones that are no longer connectable.""" 37 devtools_clients_map = _platform_backends_to_devtools_clients_maps.get( 38 platform_backend, {}) 39 if not devtools_clients_map: 40 return [] 41 return devtools_clients_map.values() 42 43def GetActiveDevToolsClients(platform_backend): 44 """Get DevTools clients that are still connectable.""" 45 _RemoveStaleDevToolsClient(platform_backend) 46 return GetDevToolsClients(platform_backend) 47