48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#include <messmer/blockstore/implementations/testfake/FakeBlock.h>
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#include <messmer/blockstore/implementations/testfake/FakeBlockStore.h>
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#include <cstring>
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using std::unique_ptr;
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using std::shared_ptr;
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using std::istream;
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using std::ostream;
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using std::ifstream;
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using std::ofstream;
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using std::ios;
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using std::string;
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namespace blockstore {
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namespace testfake {
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FakeBlock::FakeBlock(FakeBlockStore *store, const Key &key, shared_ptr<Data> data)
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: Block(key), _store(store), _data(data), _dataChanged(false) {
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}
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FakeBlock::~FakeBlock() {
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flush();
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}
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const void *FakeBlock::data() const {
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return _data->data();
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}
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void FakeBlock::write(const void *source, uint64_t offset, uint64_t size) {
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assert(offset <= _data->size() && offset + size <= _data->size()); //Also check offset < _data->size() because of possible overflow in the addition
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std::memcpy((uint8_t*)_data->data()+offset, source, size);
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_dataChanged = true;
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}
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size_t FakeBlock::size() const {
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return _data->size();
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}
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void FakeBlock::flush() {
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if(_dataChanged) {
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_store->updateData(key(), *_data);
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_dataChanged = false;
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}
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}
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}
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}
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