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f67539c2 TL |
1 | /* |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, | |
13 | * software distributed under the License is distributed on an | |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
15 | * KIND, either express or implied. See the License for the | |
16 | * specific language governing permissions and limitations | |
17 | * under the License. | |
18 | */ | |
19 | ||
20 | package thrift | |
21 | ||
22 | import ( | |
23 | "context" | |
24 | "errors" | |
25 | "io" | |
26 | ) | |
27 | ||
28 | var errTransportInterrupted = errors.New("Transport Interrupted") | |
29 | ||
30 | type Flusher interface { | |
31 | Flush() (err error) | |
32 | } | |
33 | ||
34 | type ContextFlusher interface { | |
35 | Flush(ctx context.Context) (err error) | |
36 | } | |
37 | ||
38 | type ReadSizeProvider interface { | |
39 | RemainingBytes() (num_bytes uint64) | |
40 | } | |
41 | ||
42 | // Encapsulates the I/O layer | |
43 | type TTransport interface { | |
44 | io.ReadWriteCloser | |
45 | ContextFlusher | |
46 | ReadSizeProvider | |
47 | ||
48 | // Opens the transport for communication | |
49 | Open() error | |
50 | ||
51 | // Returns true if the transport is open | |
52 | IsOpen() bool | |
53 | } | |
54 | ||
55 | type stringWriter interface { | |
56 | WriteString(s string) (n int, err error) | |
57 | } | |
58 | ||
59 | // This is "enchanced" transport with extra capabilities. You need to use one of these | |
60 | // to construct protocol. | |
61 | // Notably, TSocket does not implement this interface, and it is always a mistake to use | |
62 | // TSocket directly in protocol. | |
63 | type TRichTransport interface { | |
64 | io.ReadWriter | |
65 | io.ByteReader | |
66 | io.ByteWriter | |
67 | stringWriter | |
68 | ContextFlusher | |
69 | ReadSizeProvider | |
70 | } |