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1 // Copyright (c) 2010, Google Inc. | |
2 // All rights reserved. | |
3 // | |
4 // Redistribution and use in source and binary forms, with or without | |
5 // modification, are permitted provided that the following conditions are | |
6 // met: | |
7 // | |
8 // * Redistributions of source code must retain the above copyright | |
9 // notice, this list of conditions and the following disclaimer. | |
10 // * Redistributions in binary form must reproduce the above | |
11 // copyright notice, this list of conditions and the following disclaimer | |
12 // in the documentation and/or other materials provided with the | |
13 // distribution. | |
14 // * Neither the name of Google Inc. nor the names of its | |
15 // contributors may be used to endorse or promote products derived from | |
16 // this software without specific prior written permission. | |
17 // | |
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | |
30 // binarystream implements part of the std::iostream interface as a | |
31 // wrapper around std::stringstream to allow reading and writing strings | |
32 // and integers of known size. | |
33 | |
34 #ifndef GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ | |
35 #define GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ | |
36 | |
37 #include <sstream> | |
38 #include <string> | |
39 | |
40 #include "common/using_std_string.h" | |
41 #include "google_breakpad/common/breakpad_types.h" | |
42 | |
43 namespace google_breakpad { | |
44 using std::ios_base; | |
45 using std::ios; | |
46 | |
47 class binarystream { | |
48 public: | |
49 explicit binarystream(ios_base::openmode which = ios_base::out|ios_base::in) | |
50 : stream_(which) {} | |
51 explicit binarystream(const string &str, | |
52 ios_base::openmode which = ios_base::out|ios_base::in) | |
53 : stream_(str, which) {} | |
54 explicit binarystream(const char *str, size_t size, | |
55 ios_base::openmode which = ios_base::out|ios_base::in) | |
56 : stream_(string(str, size), which) {} | |
57 | |
58 binarystream &operator>>(string &str); | |
59 binarystream &operator>>(uint8_t &u8); | |
60 binarystream &operator>>(uint16_t &u16); | |
61 binarystream &operator>>(uint32_t &u32); | |
62 binarystream &operator>>(uint64_t &u64); | |
63 | |
64 // Note: strings are truncated at 65535 characters | |
65 binarystream &operator<<(const string &str); | |
66 binarystream &operator<<(uint8_t u8); | |
67 binarystream &operator<<(uint16_t u16); | |
68 binarystream &operator<<(uint32_t u32); | |
69 binarystream &operator<<(uint64_t u64); | |
70 | |
71 // Forward a few methods directly from the stream object | |
72 bool eof() const { return stream_.eof(); } | |
73 void clear() { stream_.clear(); } | |
74 string str() const { return stream_.str(); } | |
75 void str(const string &s) { stream_.str(s); } | |
76 | |
77 // Seek both read and write pointers to the beginning of the stream. | |
78 void rewind() { | |
79 stream_.seekg (0, ios::beg); | |
80 stream_.seekp (0, ios::beg); | |
81 // This is to clear all the error flags, since only the EOF flag is cleared | |
82 // with seekg(). | |
83 stream_.clear(); | |
84 } | |
85 | |
86 private: | |
87 std::stringstream stream_; | |
88 }; | |
89 | |
90 } // namespace google_breakpad | |
91 | |
92 #endif // GOOGLE_BREAKPAD_PROCESSOR_BINARYSTREAM_H_ | |
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