1 | /* Copyright 2016 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | #ifndef TENSORFLOW_TSL_PLATFORM_SUBPROCESS_H_ |
17 | #define TENSORFLOW_TSL_PLATFORM_SUBPROCESS_H_ |
18 | |
19 | #include <memory> |
20 | #include <vector> |
21 | |
22 | #include "tensorflow/tsl/platform/types.h" |
23 | |
24 | namespace tsl { |
25 | |
26 | // Channel identifiers. |
27 | enum Channel { |
28 | CHAN_STDIN = 0, |
29 | CHAN_STDOUT = 1, |
30 | CHAN_STDERR = 2, |
31 | }; |
32 | |
33 | // Specify how a channel is handled. |
34 | enum ChannelAction { |
35 | // Close the file descriptor when the process starts. |
36 | // This is the default behavior. |
37 | ACTION_CLOSE, |
38 | |
39 | // Make a pipe to the channel. It is used in the Communicate() method to |
40 | // transfer data between the parent and child processes. |
41 | ACTION_PIPE, |
42 | |
43 | // Duplicate the parent's file descriptor. Useful if stdout/stderr should |
44 | // go to the same place that the parent writes it. |
45 | ACTION_DUPPARENT, |
46 | }; |
47 | |
48 | // Supports spawning and killing child processes. |
49 | class SubProcess; |
50 | |
51 | // Returns an object that represents a child process that will be |
52 | // launched with the given command-line arguments `argv`. The process |
53 | // must be explicitly started by calling the Start() method on the |
54 | // returned object. |
55 | std::unique_ptr<SubProcess> CreateSubProcess(const std::vector<string>& argv); |
56 | |
57 | } // namespace tsl |
58 | |
59 | #include "tensorflow/tsl/platform/platform.h" |
60 | |
61 | #if defined(PLATFORM_GOOGLE) |
62 | #include "tensorflow/tsl/platform/google/subprocess.h" |
63 | #elif defined(PLATFORM_POSIX) || defined(PLATFORM_POSIX_ANDROID) || \ |
64 | defined(PLATFORM_GOOGLE_ANDROID) || defined(PLATFORM_POSIX_IOS) || \ |
65 | defined(PLATFORM_GOOGLE_IOS) |
66 | #include "tensorflow/tsl/platform/default/subprocess.h" // IWYU pragma: export |
67 | #elif defined(PLATFORM_WINDOWS) |
68 | #include "tensorflow/tsl/platform/windows/subprocess.h" // IWYU pragma: export |
69 | #else |
70 | #error Define the appropriate PLATFORM_<foo> macro for this platform |
71 | #endif |
72 | |
73 | #endif // TENSORFLOW_TSL_PLATFORM_SUBPROCESS_H_ |
74 | |