Mercurial > hg > sv-dependency-builds
comparison osx/include/kj/std/iostream.h @ 62:0994c39f1e94
Cap'n Proto v0.6 + build for OSX
author | Chris Cannam <cannam@all-day-breakfast.com> |
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date | Mon, 22 May 2017 10:01:37 +0100 |
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61:d101c4099725 | 62:0994c39f1e94 |
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1 // Copyright (c) 2014 Sandstorm Development Group, Inc. and contributors | |
2 // Licensed under the MIT License: | |
3 // | |
4 // Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 // of this software and associated documentation files (the "Software"), to deal | |
6 // in the Software without restriction, including without limitation the rights | |
7 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 // copies of the Software, and to permit persons to whom the Software is | |
9 // furnished to do so, subject to the following conditions: | |
10 // | |
11 // The above copyright notice and this permission notice shall be included in | |
12 // all copies or substantial portions of the Software. | |
13 // | |
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
20 // THE SOFTWARE. | |
21 | |
22 /* | |
23 * Compatibility layer for stdlib iostream | |
24 */ | |
25 | |
26 #ifndef KJ_STD_IOSTREAM_H_ | |
27 #define KJ_STD_IOSTREAM_H_ | |
28 | |
29 #if defined(__GNUC__) && !KJ_HEADER_WARNINGS | |
30 #pragma GCC system_header | |
31 #endif | |
32 | |
33 #include "../io.h" | |
34 #include <iostream> | |
35 | |
36 namespace kj { | |
37 namespace std { | |
38 | |
39 class StdOutputStream: public kj::OutputStream { | |
40 | |
41 public: | |
42 explicit StdOutputStream(::std::ostream& stream) : stream_(stream) {} | |
43 ~StdOutputStream() noexcept(false) {} | |
44 | |
45 virtual void write(const void* src, size_t size) override { | |
46 // Always writes the full size. | |
47 | |
48 stream_.write((char*)src, size); | |
49 } | |
50 | |
51 virtual void write(ArrayPtr<const ArrayPtr<const byte>> pieces) override { | |
52 // Equivalent to write()ing each byte array in sequence, which is what the | |
53 // default implementation does. Override if you can do something better, | |
54 // e.g. use writev() to do the write in a single syscall. | |
55 | |
56 for (auto piece : pieces) { | |
57 write(piece.begin(), piece.size()); | |
58 } | |
59 } | |
60 | |
61 private: | |
62 ::std::ostream& stream_; | |
63 | |
64 }; | |
65 | |
66 class StdInputStream: public kj::InputStream { | |
67 | |
68 public: | |
69 explicit StdInputStream(::std::istream& stream) : stream_(stream) {} | |
70 ~StdInputStream() noexcept(false) {} | |
71 | |
72 virtual size_t tryRead( | |
73 void* buffer, size_t minBytes, size_t maxBytes) override { | |
74 // Like read(), but may return fewer than minBytes on EOF. | |
75 | |
76 stream_.read((char*)buffer, maxBytes); | |
77 return stream_.gcount(); | |
78 } | |
79 | |
80 private: | |
81 ::std::istream& stream_; | |
82 | |
83 }; | |
84 | |
85 } // namespace std | |
86 } // namespace kj | |
87 | |
88 #endif // KJ_STD_IOSTREAM_H_ |