| # Copyright 2015 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| # A singleton map from platform backends to maps of uniquely-identifying |
| # remote port (which may be the same as local port) to DevToolsClientBackend. |
| # There is no guarantee that the devtools agent is still alive. |
| _platform_backends_to_devtools_clients_maps = {} |
| |
| |
| def _RemoveStaleDevToolsClient(platform_backend): |
| """Removes DevTools clients that are no longer connectable.""" |
| devtools_clients_map = _platform_backends_to_devtools_clients_maps.get( |
| platform_backend, {}) |
| devtools_clients_map = { |
| port: client |
| for port, client in devtools_clients_map.iteritems() |
| if client.IsAlive() |
| } |
| _platform_backends_to_devtools_clients_maps[platform_backend] = ( |
| devtools_clients_map) |
| |
| |
| def RegisterDevToolsClient(devtools_client_backend, platform_backend): |
| """Register DevTools client |
| |
| This should only be called from DevToolsClientBackend when it is initialized. |
| """ |
| remote_port = str(devtools_client_backend.remote_port) |
| if platform_backend not in _platform_backends_to_devtools_clients_maps: |
| _platform_backends_to_devtools_clients_maps[platform_backend] = {} |
| devtools_clients_map = ( |
| _platform_backends_to_devtools_clients_maps[platform_backend]) |
| devtools_clients_map[remote_port] = devtools_client_backend |
| |
| |
| def IsSupported(platform_backend): |
| _RemoveStaleDevToolsClient(platform_backend) |
| devtools_clients_map = _platform_backends_to_devtools_clients_maps.get( |
| platform_backend, {}) |
| for _, devtools_client in devtools_clients_map.iteritems(): |
| if devtools_client.IsChromeTracingSupported(): |
| return True |
| return False |
| |
| |
| def GetDevToolsClients(platform_backend): |
| """Get DevTools clients including the ones that are no longer connectable.""" |
| devtools_clients_map = _platform_backends_to_devtools_clients_maps.get( |
| platform_backend, {}) |
| if not devtools_clients_map: |
| return [] |
| return devtools_clients_map.values() |
| |
| def GetActiveDevToolsClients(platform_backend): |
| """Get DevTools clients that are still connectable.""" |
| _RemoveStaleDevToolsClient(platform_backend) |
| return GetDevToolsClients(platform_backend) |
