/src/qpdf/libqpdf/Buffer.cc
Line | Count | Source (jump to first uncovered line) |
1 | | #include <qpdf/assert_test.h> |
2 | | |
3 | | #include <qpdf/Buffer.hh> |
4 | | |
5 | | #include <cstring> |
6 | | |
7 | | class Buffer::Members |
8 | | { |
9 | | friend class Buffer; |
10 | | |
11 | | public: |
12 | | ~Members(); |
13 | | |
14 | | private: |
15 | | Members(size_t size, unsigned char* buf, bool own_memory); |
16 | | Members(std::string&& content); |
17 | | Members(Members const&) = delete; |
18 | | |
19 | | std::string str; |
20 | | bool own_memory; |
21 | | size_t size; |
22 | | unsigned char* buf; |
23 | | }; |
24 | | |
25 | | Buffer::Members::Members(size_t size, unsigned char* buf, bool own_memory) : |
26 | 0 | own_memory(own_memory), |
27 | 0 | size(size), |
28 | 0 | buf(nullptr) |
29 | 0 | { |
30 | 0 | if (own_memory) { |
31 | 0 | this->buf = (size ? new unsigned char[size] : nullptr); |
32 | 0 | } else { |
33 | 0 | this->buf = buf; |
34 | 0 | } |
35 | 0 | } |
36 | | |
37 | | Buffer::Members::Members(std::string&& content) : |
38 | 0 | str(std::move(content)), |
39 | 0 | own_memory(false), |
40 | 0 | size(str.size()), |
41 | 0 | buf(reinterpret_cast<unsigned char*>(str.data())) |
42 | 0 | { |
43 | 0 | } |
44 | | |
45 | | Buffer::Members::~Members() |
46 | 0 | { |
47 | 0 | if (this->own_memory) { |
48 | 0 | delete[] this->buf; |
49 | 0 | } |
50 | 0 | } |
51 | | |
52 | | Buffer::Buffer() : |
53 | 0 | m(new Members(0, nullptr, true)) |
54 | 0 | { |
55 | 0 | } |
56 | | |
57 | | Buffer::Buffer(size_t size) : |
58 | 0 | m(new Members(size, nullptr, true)) |
59 | 0 | { |
60 | 0 | } |
61 | | |
62 | | Buffer::Buffer(std::string&& content) : |
63 | 0 | m(new Members(std::move(content))) |
64 | 0 | { |
65 | 0 | } |
66 | | |
67 | | Buffer::Buffer(unsigned char* buf, size_t size) : |
68 | 0 | m(new Members(size, buf, false)) |
69 | 0 | { |
70 | 0 | } |
71 | | |
72 | | Buffer::Buffer(std::string& content) : |
73 | 0 | m(new Members(content.size(), reinterpret_cast<unsigned char*>(content.data()), false)) |
74 | 0 | { |
75 | 0 | } |
76 | | |
77 | | Buffer::Buffer(Buffer&& rhs) noexcept : |
78 | 0 | m(std::move(rhs.m)) |
79 | 0 | { |
80 | 0 | } |
81 | | |
82 | | Buffer& |
83 | | Buffer::operator=(Buffer&& rhs) noexcept |
84 | 0 | { |
85 | 0 | std::swap(m, rhs.m); |
86 | 0 | return *this; |
87 | 0 | } |
88 | | |
89 | 0 | Buffer::~Buffer() = default; |
90 | | |
91 | | void |
92 | | Buffer::copy(Buffer const& rhs) |
93 | 0 | { |
94 | 0 | if (this != &rhs) { |
95 | 0 | m = std::unique_ptr<Members>(new Members(rhs.m->size, nullptr, true)); |
96 | 0 | if (m->size) { |
97 | 0 | memcpy(m->buf, rhs.m->buf, m->size); |
98 | 0 | } |
99 | 0 | } |
100 | 0 | } |
101 | | |
102 | | size_t |
103 | | Buffer::getSize() const |
104 | 0 | { |
105 | 0 | return m->size; |
106 | 0 | } |
107 | | |
108 | | unsigned char const* |
109 | | Buffer::getBuffer() const |
110 | 0 | { |
111 | 0 | return m->buf; |
112 | 0 | } |
113 | | |
114 | | unsigned char* |
115 | | Buffer::getBuffer() |
116 | 0 | { |
117 | 0 | return m->buf; |
118 | 0 | } |
119 | | |
120 | | Buffer |
121 | | Buffer::copy() const |
122 | 0 | { |
123 | 0 | auto result = Buffer(m->size); |
124 | 0 | if (m->size) { |
125 | 0 | memcpy(result.m->buf, m->buf, m->size); |
126 | 0 | } |
127 | 0 | return result; |
128 | 0 | } |