181 lines
6.8 KiB
Python
181 lines
6.8 KiB
Python
# Copyright (C) 2014 Srivats P.
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#
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# This file is part of "Ostinato"
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#
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# This is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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import os
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from rpc import OstinatoRpcChannel, OstinatoRpcController, RpcError
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import protocols.protocol_pb2 as ost_pb
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import protocols.emulproto_pb2 as emul
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from __init__ import __version__
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class DroneProxy(object):
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def __init__(self, host_name, port_number=7878):
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self.host = host_name
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self.port = port_number
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self.channel = OstinatoRpcChannel()
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self.stub = ost_pb.OstService_Stub(self.channel)
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self.void = ost_pb.Void()
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for method in self.stub.GetDescriptor().methods:
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fn = lambda request=self.void, method_name=method.name: \
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self.callRpcMethod(method_name, request)
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self.__dict__[method.name] = fn
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def hostName(self):
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return self.host
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def portNumber(self):
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return self.port
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def connect(self):
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self.channel.connect(self.host, self.port)
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ver = ost_pb.VersionInfo()
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ver.client_name = 'python-ostinato'
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ver.version = __version__
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compat = self.checkVersion(ver)
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if compat.result == ost_pb.VersionCompatibility.kIncompatible:
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raise RpcError('incompatible version %s (%s)' %
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(ver.version, compat.notes))
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def disconnect(self):
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self.channel.disconnect()
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def callRpcMethod(self, method_name, request):
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controller = OstinatoRpcController()
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ost_pb.OstService_Stub.__dict__[method_name](
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self.stub, controller, request, None)
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return controller.response
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def saveCaptureBuffer(self, buffer, file_name):
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f= open(file_name, 'wb')
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f.write(buffer)
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f.flush()
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os.fsync(f.fileno())
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f.close()
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def getStreamStatsDict(self, stream_guid_list):
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"""
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Convenience method for fetching stream stats. Returns an object
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containing port/sguid dictionaries for easier access e.g.
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stream_stats = drone.getStreamStatsDict(guid_list)
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stream_stats.sguid[101].port[1].tx_pkts
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stream_stats.port[1].sguid[101].rx_bytes
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In addition, you can also retrieve totals across ports, e.g.
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stream_stats.port[1].total.rx_pkts
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stream_stats.port[1].total.rx_bytes
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stream_stats.port[1].total.tx_pkts
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stream_stats.port[1].total.tx_bytes
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and totals across sguids -
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stream_stats.sguid[101].total.tx_pkts
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stream_stats.sguid[101].total.rx_pkts
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stream_stats.sguid[101].total.pkt_loss
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This method is a wrapper around the getStreamStats() RPC
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"""
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class StreamStatsPortTotal:
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def __init__(self):
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self.tx_pkts = 0
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self.rx_pkts = 0
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self.tx_bytes = 0
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self.rx_bytes = 0
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def __repr__(self):
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s = ' total: { \n'
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s += ' rx_pkts: ' + str(self.rx_pkts) + ' \n'
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s += ' rx_bytes: ' + str(self.rx_bytes) + ' \n'
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s += ' tx_pkts: ' + str(self.tx_pkts) + ' \n'
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s += ' tx_bytes: ' + str(self.tx_bytes) + ' \n'
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s += ' }\n'
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return s
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class StreamStatsDictPort:
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def __init__(self):
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self.sguid = dict()
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self.total = StreamStatsPortTotal()
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def __repr__(self):
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s = ' sguid: { \n'
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for k, v in self.sguid.items():
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s += ' ' + str(k) + ': {\n ' \
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+ str(v).replace('\n', '\n ') + '}\n'
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s += ' }\n'
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s += str(self.total)
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return s
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class StreamStatsGuidTotal:
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def __init__(self):
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self.tx_pkts = 0
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self.rx_pkts = 0
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self.pkt_loss = 0
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def __repr__(self):
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s = ' total: { \n'
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s += ' tx_pkts: ' + str(self.tx_pkts) + ' \n'
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s += ' rx_pkts: ' + str(self.rx_pkts) + ' \n'
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s += ' pkt_loss: ' + str(self.pkt_loss) + ' \n'
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s += ' }\n'
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return s
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class StreamStatsDictGuid:
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def __init__(self):
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self.port = dict()
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self.total = StreamStatsGuidTotal()
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def __repr__(self):
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s = ' port: { \n'
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for k, v in self.port.items():
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s += ' ' + str(k) + ': {\n ' \
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+ str(v).replace('\n', '\n ') + '}\n'
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s += ' }\n'
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s += str(self.total)
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return s
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class StreamStatsDict:
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def __init__(self):
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self.port = dict()
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self.sguid = dict()
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def __repr__(self):
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s = 'port: {\n'
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for k, v in self.port.items():
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s += str(k) + ': {\n' + str(v) + '}\n'
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s += '}\n'
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s += 'sguid: {\n'
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for k, v in self.sguid.items():
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s += str(k) + ': {\n' + str(v) + '}\n'
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s += '}\n'
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return s
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ssl = self.getStreamStats(stream_guid_list)
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ssd = StreamStatsDict()
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for ss in ssl.stream_stats:
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if ss.port_id.id not in ssd.port:
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ssd.port[ss.port_id.id] = StreamStatsDictPort()
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assert ss.stream_guid.id not in ssd.port[ss.port_id.id].sguid
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ssd.port[ss.port_id.id].sguid[ss.stream_guid.id] = ss
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ssd.port[ss.port_id.id].total.tx_pkts += ss.tx_pkts
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ssd.port[ss.port_id.id].total.rx_pkts += ss.rx_pkts
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ssd.port[ss.port_id.id].total.tx_bytes += ss.tx_bytes
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ssd.port[ss.port_id.id].total.rx_bytes += ss.rx_bytes
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if ss.stream_guid.id not in ssd.sguid:
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ssd.sguid[ss.stream_guid.id] = StreamStatsDictGuid()
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assert ss.port_id.id not in ssd.sguid[ss.stream_guid.id].port
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ssd.sguid[ss.stream_guid.id].port[ss.port_id.id] = ss
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ssd.sguid[ss.stream_guid.id].total.tx_pkts += ss.tx_pkts
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ssd.sguid[ss.stream_guid.id].total.rx_pkts += ss.rx_pkts
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ssd.sguid[ss.stream_guid.id].total.pkt_loss += \
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ss.tx_pkts - ss.rx_pkts
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return ssd
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