/src/qpdf/libqpdf/Buffer.cc

Source
#include <qpdf/assert_test.h>

#include <qpdf/Buffer.hh>

class Buffer::Members
{
    friend class Buffer;

  public:
    Members() = default;
    // Constructor for Buffers that don't own the memory.
    Members(size_t size, char* buf) :
        size(size),
        buf(buf)
    {
    }
    Members(std::string&& content) :
        str(std::move(content)),
        size(str.size()),
        buf(str.data())
    {
    }
    Members(Members const&) = delete;
    ~Members() = default;

  private:
    std::string str;
    size_t size;
    char* buf;
};

Buffer::Buffer() :
    m(std::make_unique<Members>())
{
}

Buffer::Buffer(size_t size) :
    m(std::make_unique<Members>(std::string(size, '\0')))
{
}

Buffer::Buffer(std::string&& content) :
    m(std::make_unique<Members>(std::move(content)))
{
}

Buffer::Buffer(unsigned char* buf, size_t size) :
    m(std::make_unique<Members>(size, reinterpret_cast<char*>(buf)))
{
}

Buffer::Buffer(std::string& content) :
    m(std::make_unique<Members>(content.size(), content.data()))
{
}

Buffer::Buffer(Buffer&& rhs) noexcept :
    m(std::move(rhs.m))
{
}

Buffer&
Buffer::operator=(Buffer&& rhs) noexcept
{
    std::swap(m, rhs.m);
    return *this;
}

Buffer::~Buffer() = default;

size_t
Buffer::getSize() const
{
    return m->size;
}

unsigned char const*
Buffer::getBuffer() const
{
    return reinterpret_cast<unsigned char*>(m->buf);
}

unsigned char*
Buffer::getBuffer()
{
    return reinterpret_cast<unsigned char*>(m->buf);
}

Buffer
Buffer::copy() const
{
    if (m->size == 0) {
        return {};
    }
    return {std::string(m->buf, m->size)};
}

std::string
Buffer::move()
{
    if (m->size == 0) {
        return {};
    }
    if (!m->str.empty()) {
        m->size = 0;
        m->buf = nullptr;
        return std::move(m->str);
    }
    return {m->buf, m->size};
}

std::string_view
Buffer::view() const
{
    if (!m->buf) {
        return {};
    }
    return {m->buf, m->size};
}

char const*
Buffer::data() const
{
    return m->buf ? m->buf : m->str.data();
}

char*
Buffer::data()
{
    return m->buf ? m->buf : m->str.data();
}

bool
Buffer::empty() const
{
    return m->size == 0;
}

size_t
Buffer::size() const
{
    return m->size;
}

Line	Count	Source
1		#include <qpdf/assert_test.h>
2
3		#include <qpdf/Buffer.hh>
4
5		class Buffer::Members
6		{
7		friend class Buffer;
8
9		public:
10	0	Members() = default;
11		// Constructor for Buffers that don't own the memory.
12		Members(size_t size, char* buf) :
13	290k	size(size),
14	290k	buf(buf)
15	290k	{
16	290k	}
17		Members(std::string&& content) :
18	15.8M	str(std::move(content)),
19	15.8M	size(str.size()),
20	15.8M	buf(str.data())
21	15.8M	{
22	15.8M	}
23		Members(Members const&) = delete;
24	16.1M	~Members() = default;
25
26		private:
27		std::string str;
28		size_t size;
29		char* buf;
30		};
31
32		Buffer::Buffer() :
33	0	m(std::make_unique<Members>())
34	0	{
35	0	}
36
37		Buffer::Buffer(size_t size) :
38	15.7M	m(std::make_unique<Members>(std::string(size, '\0')))
39	15.7M	{
40	15.7M	}
41
42		Buffer::Buffer(std::string&& content) :
43	81.3k	m(std::make_unique<Members>(std::move(content)))
44	81.3k	{
45	81.3k	}
46
47		Buffer::Buffer(unsigned char* buf, size_t size) :
48	290k	m(std::make_unique<Members>(size, reinterpret_cast<char*>(buf)))
49	290k	{
50	290k	}
51
52		Buffer::Buffer(std::string& content) :
53	0	m(std::make_unique<Members>(content.size(), content.data()))
54	0	{
55	0	}
56
57		Buffer::Buffer(Buffer&& rhs) noexcept :
58	21.6M	m(std::move(rhs.m))
59	21.6M	{
60	21.6M	}
61
62		Buffer&
63		Buffer::operator=(Buffer&& rhs) noexcept
64	0	{
65	0	std::swap(m, rhs.m);
66	0	return *this;
67	0	}
68
69	37.8M	Buffer::~Buffer() = default;
70
71		size_t
72		Buffer::getSize() const
73	857k	{
74	857k	return m->size;
75	857k	}
76
77		unsigned char const*
78		Buffer::getBuffer() const
79	0	{
80	0	return reinterpret_cast<unsigned char*>(m->buf);
81	0	}
82
83		unsigned char*
84		Buffer::getBuffer()
85	39.8M	{
86	39.8M	return reinterpret_cast<unsigned char*>(m->buf);
87	39.8M	}
88
89		Buffer
90		Buffer::copy() const
91	0	{
92	0	if (m->size == 0) {
93	0	return {};
94	0	}
95	0	return {std::string(m->buf, m->size)};
96	0	}
97
98		std::string
99		Buffer::move()
100	0	{
101	0	if (m->size == 0) {
102	0	return {};
103	0	}
104	0	if (!m->str.empty()) {
105	0	m->size = 0;
106	0	m->buf = nullptr;
107	0	return std::move(m->str);
108	0	}
109	0	return {m->buf, m->size};
110	0	}
111
112		std::string_view
113		Buffer::view() const
114	0	{
115	0	if (!m->buf) {
116	0	return {};
117	0	}
118	0	return {m->buf, m->size};
119	0	}
120
121		char const*
122		Buffer::data() const
123	0	{
124	0	return m->buf ? m->buf : m->str.data();
125	0	}
126
127		char*
128		Buffer::data()
129	0	{
130	0	return m->buf ? m->buf : m->str.data();
131	0	}
132
133		bool
134		Buffer::empty() const
135	0	{
136	0	return m->size == 0;
137	0	}
138
139		size_t
140		Buffer::size() const
141	0	{
142	0	return m->size;
143	0	}

Coverage Report

Created: 2025-10-10 06:21