C++ (Cpp) SharedBuffer::get Examples

Example #1

File: wiredtiger_record_store.cpp Project: MrChen2015/mongo

// Retrieve the value from a positioned cursor.
RecordData WiredTigerRecordStore::_getData(const WiredTigerCursor& cursor) const {
    WT_ITEM value;
    int ret = cursor->get_value(cursor.get(), &value);
    invariantWTOK(ret);

    SharedBuffer data = SharedBuffer::allocate(value.size);
    memcpy(data.get(), value.data, value.size);
    return RecordData(data, value.size);
}

Example #2

File: terarkdb_record_store.cpp Project: Crixalis2013/terark-db

bool TerarkDbRecordStore::findRecord(OperationContext* txn,
								   const RecordId& id,
								   RecordData* out) const {
	if (id.isNull())
		return false;
    llong recIdx = id.repr() - 1;
	CompositeTable* tab = m_table->m_tab.get();
    auto& td = m_table->getMyThreadData();
    tab->getValue(recIdx, &td.m_buf, &*td.m_dbCtx);
    SharedBuffer bson = td.m_coder.decode(&tab->rowSchema(), td.m_buf);

//  size_t bufsize = sizeof(SharedBuffer::Holder) + bson.objsize();
    int bufsize = ConstDataView(bson.get()).read<LittleEndian<int>>();
    *out = RecordData(bson, bufsize);
    return true;
}