1 /* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /*
3 * Copyright 2017 Couchbase, Inc
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 #include "blob.h"
19
20 #include "objectregistry.h"
21
22 #include <cstring>
23
New(const char* start, const size_t len)24 Blob* Blob::New(const char* start, const size_t len) {
25 size_t total_len = getAllocationSize(len);
26 Blob* t = new (::operator new(total_len)) Blob(start, len);
27 return t;
28 }
29
New(const size_t len)30 Blob* Blob::New(const size_t len) {
31 size_t total_len = getAllocationSize(len);
32 Blob* t = new (::operator new(total_len)) Blob(len);
33 return t;
34 }
35
Copy(const Blob& other)36 Blob* Blob::Copy(const Blob& other) {
37 Blob* t = new (::operator new(Blob::getAllocationSize(other.valueSize())))
38 Blob(other);
39 return t;
40 }
41
Blob(const char* start, const size_t len)42 Blob::Blob(const char* start, const size_t len)
43 : size(static_cast<uint32_t>(len)), age(0) {
44 if (start != NULL) {
45 std::memcpy(data, start, len);
46 #ifdef VALGRIND
47 } else {
48 memset(data, 0, len);
49 #endif
50 }
51 ObjectRegistry::onCreateBlob(this);
52 }
53
Blob(const size_t len)54 Blob::Blob(const size_t len) : Blob(nullptr, len) {
55 }
56
Blob(const Blob& other)57 Blob::Blob(const Blob& other)
58 : size(other.size.load()),
59 // While this is a copy, it is a new allocation therefore reset age.
60 age(0) {
61 std::memcpy(data, other.data, other.valueSize());
62 ObjectRegistry::onCreateBlob(this);
63 }
64
to_s() const65 const std::string Blob::to_s() const {
66 return std::string(data, valueSize());
67 }
68
~Blob()69 Blob::~Blob() {
70 ObjectRegistry::onDeleteBlob(this);
71 }
72