libcryfs/implementations/inmemory/InMemoryBlock.cpp

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#include "InMemoryBlock.h"
#include "InMemoryBlockStore.h"
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#include <cstring>
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#include <messmer/cpp-utils/data/DataUtils.h>
#include <messmer/cpp-utils/assert/assert.h>
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using std::make_shared;
using std::istream;
using std::ostream;
using std::ifstream;
using std::ofstream;
using std::ios;
using cpputils::Data;
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namespace blockstore {
namespace inmemory {
InMemoryBlock::InMemoryBlock(const Key &key, Data data)
: Block(key), _data(make_shared<Data>(std::move(data))) {
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}
InMemoryBlock::InMemoryBlock(const InMemoryBlock &rhs)
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: Block(rhs), _data(rhs._data) {
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}
InMemoryBlock::~InMemoryBlock() {
}
const void *InMemoryBlock::data() const {
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return _data->data();
}
void InMemoryBlock::write(const void *source, uint64_t offset, uint64_t size) {
ASSERT(offset <= _data->size() && offset + size <= _data->size(), "Write outside of valid area"); //Also check offset < _data->size() because of possible overflow in the addition
std::memcpy((uint8_t*)_data->data()+offset, source, size);
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}
size_t InMemoryBlock::size() const {
return _data->size();
}
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void InMemoryBlock::resize(size_t newSize) {
*_data = cpputils::DataUtils::resize(std::move(*_data), newSize);
}
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void InMemoryBlock::flush() {
}
}
}