1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
# Copyright 2015, Google Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
from grpc import _grpcio_metadata
from grpc._adapter import _c
from grpc._adapter import _types
_USER_AGENT = 'Python-gRPC-{}'.format(_grpcio_metadata.__version__)
ClientCredentials = _c.ClientCredentials
ServerCredentials = _c.ServerCredentials
class CompletionQueue(_types.CompletionQueue):
def __init__(self):
self.completion_queue = _c.CompletionQueue()
def next(self, deadline=float('+inf')):
raw_event = self.completion_queue.next(deadline)
if raw_event is None:
return None
event = _types.Event(*raw_event)
if event.call is not None:
event = event._replace(call=Call(event.call))
if event.call_details is not None:
event = event._replace(call_details=_types.CallDetails(*event.call_details))
if event.results is not None:
new_results = [_types.OpResult(*r) for r in event.results]
new_results = [r if r.status is None else r._replace(status=_types.Status(_types.StatusCode(r.status[0]), r.status[1])) for r in new_results]
event = event._replace(results=new_results)
return event
def shutdown(self):
self.completion_queue.shutdown()
class Call(_types.Call):
def __init__(self, call):
self.call = call
def start_batch(self, ops, tag):
return self.call.start_batch(ops, tag)
def cancel(self, code=None, details=None):
if code is None and details is None:
return self.call.cancel()
else:
return self.call.cancel(code, details)
def peer(self):
return self.call.peer()
def set_credentials(self, creds):
return self.call.set_credentials(creds)
class Channel(_types.Channel):
def __init__(self, target, args, creds=None):
args = list(args) + [(_c.PRIMARY_USER_AGENT_KEY, _USER_AGENT)]
if creds is None:
self.channel = _c.Channel(target, args)
else:
self.channel = _c.Channel(target, args, creds)
def create_call(self, completion_queue, method, host, deadline=None):
return Call(self.channel.create_call(completion_queue.completion_queue, method, host, deadline))
def check_connectivity_state(self, try_to_connect):
return self.channel.check_connectivity_state(try_to_connect)
def watch_connectivity_state(self, last_observed_state, deadline,
completion_queue, tag):
self.channel.watch_connectivity_state(
last_observed_state, deadline, completion_queue.completion_queue, tag)
def target(self):
return self.channel.target()
_NO_TAG = object()
class Server(_types.Server):
def __init__(self, completion_queue, args):
self.server = _c.Server(completion_queue.completion_queue, args)
def add_http2_port(self, addr, creds=None):
if creds is None:
return self.server.add_http2_port(addr)
else:
return self.server.add_http2_port(addr, creds)
def start(self):
return self.server.start()
def shutdown(self, tag=None):
return self.server.shutdown(tag)
def request_call(self, completion_queue, tag):
return self.server.request_call(completion_queue.completion_queue, tag)
def cancel_all_calls(self):
return self.server.cancel_all_calls()
|
