| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #include "qbinaryjsonarray_p.h" |
| 5 | #include "qbinaryjson_p.h" |
| 6 | |
| 7 | #include <qjsonarray.h> |
| 8 | |
| 9 | QT_BEGIN_NAMESPACE |
| 10 | |
| 11 | QBinaryJsonArray::~QBinaryJsonArray() |
| 12 | { |
| 13 | if (d && !d->ref.deref()) |
| 14 | delete d; |
| 15 | } |
| 16 | |
| 17 | QBinaryJsonArray QBinaryJsonArray::fromJsonArray(const QJsonArray &array) |
| 18 | { |
| 19 | QBinaryJsonArray binary; |
| 20 | for (const QJsonValue value : array) |
| 21 | binary.append(value: QBinaryJsonValue::fromJsonValue(json: value)); |
| 22 | if (binary.d) // We want to compact it as it is a root item now |
| 23 | binary.d->compactionCounter++; |
| 24 | binary.compact(); |
| 25 | return binary; |
| 26 | } |
| 27 | |
| 28 | void QBinaryJsonArray::append(const QBinaryJsonValue &value) |
| 29 | { |
| 30 | const uint i = a ? a->length() : 0; |
| 31 | |
| 32 | bool compressed; |
| 33 | uint valueSize = QBinaryJsonPrivate::Value::requiredStorage(v: value, compressed: &compressed); |
| 34 | |
| 35 | if (!detach(reserve: valueSize + sizeof(QBinaryJsonPrivate::Value))) |
| 36 | return; |
| 37 | |
| 38 | if (!a->length()) |
| 39 | a->tableOffset = sizeof(QBinaryJsonPrivate::Array); |
| 40 | |
| 41 | uint valueOffset = a->reserveSpace(dataSize: valueSize, posInTable: i, numItems: 1, replace: false); |
| 42 | if (!valueOffset) |
| 43 | return; |
| 44 | |
| 45 | QBinaryJsonPrivate::Value *v = a->at(i); |
| 46 | v->setType(value.t == QJsonValue::Undefined ? QJsonValue::Null : value.t); |
| 47 | v->setIsLatinOrIntValue(compressed); |
| 48 | v->setIsLatinKey(false); |
| 49 | v->setValue(QBinaryJsonPrivate::Value::valueToStore(v: value, offset: valueOffset)); |
| 50 | if (valueSize) { |
| 51 | QBinaryJsonPrivate::Value::copyData(v: value, dest: reinterpret_cast<char *>(a) + valueOffset, |
| 52 | compressed); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | char *QBinaryJsonArray::takeRawData(uint *size) |
| 57 | { |
| 58 | if (d) |
| 59 | return d->takeRawData(size); |
| 60 | *size = 0; |
| 61 | return nullptr; |
| 62 | } |
| 63 | |
| 64 | bool QBinaryJsonArray::detach(uint reserve) |
| 65 | { |
| 66 | if (!d) { |
| 67 | if (reserve >= QBinaryJsonPrivate::Value::MaxSize) { |
| 68 | qWarning(msg: "QBinaryJson: Document too large to store in data structure"); |
| 69 | return false; |
| 70 | } |
| 71 | d = new QBinaryJsonPrivate::MutableData(reserve, QJsonValue::Array); |
| 72 | a = static_cast<QBinaryJsonPrivate::Array *>(d->header->root()); |
| 73 | d->ref.ref(); |
| 74 | return true; |
| 75 | } |
| 76 | if (reserve == 0 && d->ref.loadRelaxed() == 1) |
| 77 | return true; |
| 78 | |
| 79 | QBinaryJsonPrivate::MutableData *x = d->clone(b: a, reserve); |
| 80 | if (!x) |
| 81 | return false; |
| 82 | x->ref.ref(); |
| 83 | if (!d->ref.deref()) |
| 84 | delete d; |
| 85 | d = x; |
| 86 | a = static_cast<QBinaryJsonPrivate::Array *>(d->header->root()); |
| 87 | return true; |
| 88 | } |
| 89 | |
| 90 | void QBinaryJsonArray::compact() |
| 91 | { |
| 92 | if (!d || !d->compactionCounter) |
| 93 | return; |
| 94 | |
| 95 | detach(); |
| 96 | d->compact(); |
| 97 | a = static_cast<QBinaryJsonPrivate::Array *>(d->header->root()); |
| 98 | } |
| 99 | |
| 100 | QT_END_NAMESPACE |
| 101 | |
| 102 |