aws-crt-cpp
C++ wrapper around the aws-c-* libraries. Provides Cross-Platform Transport Protocols and SSL/TLS implementations for C++.
Types.h
Go to the documentation of this file.
1#pragma once
6#include <aws/common/common.h>
7#include <aws/crt/Exports.h>
8#include <aws/crt/Optional.h>
10#include <aws/crt/StringView.h>
11#include <aws/io/socket.h>
12#include <aws/mqtt/mqtt.h>
13#include <functional>
14#include <list>
15#include <map>
16#include <sstream>
17#include <string>
18#include <unordered_map>
19#include <utility>
20#include <vector>
21
22struct aws_allocator;
23struct aws_byte_buf;
24struct aws_byte_cursor;
25struct aws_socket_options;
26
27namespace Aws
28{
29 namespace Crt
30 {
31 using Allocator = aws_allocator;
32 using ByteBuf = aws_byte_buf;
33 using ByteCursor = aws_byte_cursor;
34
35 namespace Io
36 {
37 using IStream = std::basic_istream<char, std::char_traits<char>>;
38 } // namespace Io
39
40 namespace Mqtt
41 {
42 using QOS = aws_mqtt_qos;
43 using ReturnCode = aws_mqtt_connect_return_code;
44 } // namespace Mqtt
45
46 template <typename T> class StlAllocator;
47 using String = std::basic_string<char, std::char_traits<char>, StlAllocator<char>>;
48 using StringStream = std::basic_stringstream<char, std::char_traits<char>, StlAllocator<char>>;
49 template <typename K, typename V> using Map = std::map<K, V, std::less<K>, StlAllocator<std::pair<const K, V>>>;
50 template <typename K, typename V>
52 std::unordered_map<K, V, std::hash<K>, std::equal_to<K>, StlAllocator<std::pair<const K, V>>>;
53 template <typename K, typename V>
54 using MultiMap = std::multimap<K, V, std::less<K>, StlAllocator<std::pair<const K, V>>>;
55 template <typename T> using Vector = std::vector<T, StlAllocator<T>>;
56 template <typename T> using List = std::list<T, StlAllocator<T>>;
57
59 AWS_CRT_CPP_API ByteBuf ByteBufFromCString(const char *str) noexcept;
60 AWS_CRT_CPP_API ByteBuf ByteBufFromEmptyArray(const uint8_t *array, size_t len) noexcept;
61 AWS_CRT_CPP_API ByteBuf ByteBufFromArray(const uint8_t *array, size_t capacity) noexcept;
62 AWS_CRT_CPP_API ByteBuf ByteBufNewCopy(Allocator *alloc, const uint8_t *array, size_t len);
64
65 AWS_CRT_CPP_API ByteCursor ByteCursorFromCString(const char *str) noexcept;
66 AWS_CRT_CPP_API ByteCursor ByteCursorFromString(const Crt::String &str) noexcept;
68 AWS_CRT_CPP_API ByteCursor ByteCursorFromArray(const uint8_t *array, size_t len) noexcept;
69
70 AWS_CRT_CPP_API Vector<uint8_t> Base64Decode(const String &decode);
71 AWS_CRT_CPP_API String Base64Encode(const Vector<uint8_t> &encode);
72
73 template <typename RawType, typename TargetType> using TypeConvertor = std::function<TargetType(RawType)>;
74
79 template <typename RawType, typename TargetType>
80 Vector<TargetType> ArrayListToVector(const aws_array_list *array, TypeConvertor<RawType, TargetType> conv)
81 {
83 size_t cnt = aws_array_list_length(array);
84 for (size_t i = 0; i < cnt; i++)
85 {
86 RawType t;
87 aws_array_list_get_at(array, &t, i);
88 v.emplace_back(conv(t));
89 }
90 return v;
91 }
92
97 template <typename RawType, typename TargetType>
98 Vector<TargetType> ArrayListToVector(const aws_array_list *array)
99 {
101 size_t cnt = aws_array_list_length(array);
102 for (size_t i = 0; i < cnt; i++)
103 {
104 RawType t;
105 aws_array_list_get_at(array, &t, i);
106 v.emplace_back(TargetType(t));
107 }
108 return v;
109 }
110
114 template <typename Type> Vector<Type> ArrayListToVector(const aws_array_list *array)
115 {
116 Vector<Type> v;
117 size_t cnt = aws_array_list_length(array);
118 for (size_t i = 0; i < cnt; i++)
119 {
120 Type t;
121 aws_array_list_get_at(array, &t, i);
122 v.emplace_back(t);
123 }
124 return v;
125 }
126
128 {
129 return StringView(reinterpret_cast<char *>(bc.ptr), bc.len);
130 }
131
133 {
134 ByteCursor bc;
135 bc.ptr = (uint8_t *)(sv.data());
136 bc.len = sv.size();
137 return bc;
138 }
139
140 template <typename T> void Delete(T *t, Allocator *allocator)
141 {
142 t->~T();
143 aws_mem_release(allocator, t);
144 }
145
146 template <typename T, typename... Args> T *New(Allocator *allocator, Args &&... args)
147 {
148 T *t = reinterpret_cast<T *>(aws_mem_acquire(allocator, sizeof(T)));
149 if (!t)
150 return nullptr;
151 return new (t) T(std::forward<Args>(args)...);
152 }
153
154 template <typename T, typename... Args> std::shared_ptr<T> MakeShared(Allocator *allocator, Args &&... args)
155 {
156 T *t = reinterpret_cast<T *>(aws_mem_acquire(allocator, sizeof(T)));
157 if (!t)
158 return nullptr;
159 new (t) T(std::forward<Args>(args)...);
160
161 return std::shared_ptr<T>(t, [allocator](T *obj) { Delete(obj, allocator); });
162 }
163
164 template <typename T> using ScopedResource = std::unique_ptr<T, std::function<void(T *)>>;
165
166 } // namespace Crt
167} // namespace Aws
#define AWS_CRT_CPP_API
Definition: Exports.h:37
Definition: StlAllocator.h:21
Definition: StringView.h:27
constexpr size_type size() const noexcept
Definition: StringView.h:87
constexpr const_pointer data() const noexcept
Definition: StringView.h:121
std::basic_istream< char, std::char_traits< char > > IStream
Definition: Types.h:37
aws_mqtt_qos QOS
Definition: Types.h:42
aws_mqtt_connect_return_code ReturnCode
Definition: Types.h:43
AWS_CRT_CPP_API ByteCursor StringViewToByteCursor(const StringView &sv)
Definition: Types.h:132
aws_byte_cursor ByteCursor
Definition: Types.h:33
AWS_CRT_CPP_API ByteBuf ByteBufNewCopy(Allocator *alloc, const uint8_t *array, size_t len)
Definition: Types.cpp:27
std::map< K, V, std::less< K >, StlAllocator< std::pair< const K, V > > > Map
Definition: Types.h:49
AWS_CRT_CPP_API ByteCursor ByteCursorFromCString(const char *str) noexcept
Definition: Types.cpp:37
Vector< TargetType > ArrayListToVector(const aws_array_list *array, TypeConvertor< RawType, TargetType > conv)
Definition: Types.h:80
aws_allocator Allocator
Definition: StlAllocator.h:17
T * New(Allocator *allocator, Args &&... args)
Definition: Types.h:146
std::basic_stringstream< char, std::char_traits< char >, StlAllocator< char > > StringStream
Definition: Types.h:48
AWS_CRT_CPP_API ByteCursor ByteCursorFromArray(const uint8_t *array, size_t len) noexcept
Definition: Types.cpp:46
AWS_CRT_CPP_API String Base64Encode(const Vector< uint8_t > &encode)
Definition: Types.cpp:72
void Delete(T *t, Allocator *allocator)
Definition: Types.h:140
std::unordered_map< K, V, std::hash< K >, std::equal_to< K >, StlAllocator< std::pair< const K, V > > > UnorderedMap
Definition: Types.h:52
std::list< T, StlAllocator< T > > List
Definition: Types.h:56
AWS_CRT_CPP_API Allocator * DefaultAllocator() noexcept
Definition: Types.cpp:13
AWS_CRT_CPP_API ByteBuf ByteBufFromEmptyArray(const uint8_t *array, size_t len) noexcept
Definition: Types.cpp:17
std::function< TargetType(RawType)> TypeConvertor
Definition: Types.h:73
std::basic_string< char, std::char_traits< char >, StlAllocator< char > > String
Definition: Types.h:47
AWS_CRT_CPP_API StringView ByteCursorToStringView(const ByteCursor &bc)
Definition: Types.h:127
string_view StringView
Definition: StringView.h:840
AWS_CRT_CPP_API ByteCursor ByteCursorFromString(const Crt::String &str) noexcept
Definition: Types.cpp:39
aws_byte_buf ByteBuf
Definition: Types.h:32
std::unique_ptr< T, std::function< void(T *)> > ScopedResource
Definition: Types.h:164
std::shared_ptr< T > MakeShared(Allocator *allocator, Args &&... args)
Definition: Types.h:154
AWS_CRT_CPP_API ByteBuf ByteBufFromCString(const char *str) noexcept
Definition: Types.cpp:15
std::vector< T, StlAllocator< T > > Vector
Definition: Types.h:55
AWS_CRT_CPP_API Vector< uint8_t > Base64Decode(const String &decode)
Definition: Types.cpp:51
AWS_CRT_CPP_API void ByteBufDelete(ByteBuf &)
Definition: Types.cpp:35
AWS_CRT_CPP_API ByteCursor ByteCursorFromByteBuf(const ByteBuf &) noexcept
Definition: Types.cpp:44
AWS_CRT_CPP_API ByteBuf ByteBufFromArray(const uint8_t *array, size_t capacity) noexcept
Definition: Types.cpp:22
std::multimap< K, V, std::less< K >, StlAllocator< std::pair< const K, V > > > MultiMap
Definition: Types.h:54
Definition: Api.h:17
Definition: StringView.h:846