1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/memory/ref_counted_memory.h"
#include <utility>
#include "base/check_op.h"
#include "base/memory/read_only_shared_memory_region.h"
namespace base {
bool RefCountedMemory::Equals(
const scoped_refptr<RefCountedMemory>& other) const {
return other && AsSpan() == other->AsSpan();
}
RefCountedMemory::RefCountedMemory() = default;
RefCountedMemory::~RefCountedMemory() = default;
RefCountedStaticMemory::RefCountedStaticMemory() = default;
RefCountedStaticMemory::~RefCountedStaticMemory() = default;
RefCountedStaticMemory::RefCountedStaticMemory(base::span<const uint8_t> bytes)
: bytes_(bytes) {}
base::span<const uint8_t> RefCountedStaticMemory::AsSpan() const {
return bytes_;
}
RefCountedBytes::RefCountedBytes() = default;
RefCountedBytes::~RefCountedBytes() = default;
RefCountedBytes::RefCountedBytes(std::vector<uint8_t> initializer)
: bytes_(std::move(initializer)) {}
RefCountedBytes::RefCountedBytes(base::span<const uint8_t> initializer)
: bytes_(initializer.begin(), initializer.end()) {}
RefCountedBytes::RefCountedBytes(size_t size) : bytes_(size, 0u) {}
base::span<const uint8_t> RefCountedBytes::AsSpan() const {
return bytes_;
}
RefCountedString::RefCountedString() = default;
RefCountedString::~RefCountedString() = default;
RefCountedString::RefCountedString(std::string str) : string_(std::move(str)) {}
base::span<const uint8_t> RefCountedString::AsSpan() const {
return base::as_byte_span(string_);
}
RefCountedString16::RefCountedString16() = default;
RefCountedString16::~RefCountedString16() = default;
RefCountedString16::RefCountedString16(std::u16string str)
: string_(std::move(str)) {}
base::span<const uint8_t> RefCountedString16::AsSpan() const {
return base::as_byte_span(string_);
}
RefCountedSharedMemoryMapping::RefCountedSharedMemoryMapping(
ReadOnlySharedMemoryMapping mapping)
: mapping_(std::move(mapping)) {
DCHECK_GT(mapping_.size(), 0u);
}
RefCountedSharedMemoryMapping::~RefCountedSharedMemoryMapping() = default;
base::span<const uint8_t> RefCountedSharedMemoryMapping::AsSpan() const {
return mapping_.GetMemoryAsSpan<const uint8_t>();
}
// static
scoped_refptr<RefCountedSharedMemoryMapping>
RefCountedSharedMemoryMapping::CreateFromWholeRegion(
const ReadOnlySharedMemoryRegion& region) {
ReadOnlySharedMemoryMapping mapping = region.Map();
if (!mapping.IsValid()) {
return nullptr;
}
return MakeRefCounted<RefCountedSharedMemoryMapping>(std::move(mapping));
}
} // namespace base
|
