libfoedus-core
FOEDUS Core Library
record.hpp
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1 /*
2  * Copyright (c) 2014-2015, Hewlett-Packard Development Company, LP.
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18 #ifndef FOEDUS_STORAGE_RECORD_HPP_
19 #define FOEDUS_STORAGE_RECORD_HPP_
20 #include "foedus/cxx11.hpp"
21 #include "foedus/storage/storage_id.hpp"
22 #include "foedus/xct/xct_id.hpp"
23 namespace foedus {
24 namespace storage {
33 struct Record CXX11_FINAL {
39  xct::RwLockableXctId owner_id_;
40 
45  char payload_[8];
46 
47  Record() CXX11_FUNC_DELETE;
48  Record(const Record& other) CXX11_FUNC_DELETE;
49  Record& operator=(const Record& other) CXX11_FUNC_DELETE;
50 };
51 
56 const uint16_t kRecordOverhead = sizeof(xct::RwLockableXctId);
57 
58 CXX11_STATIC_ASSERT(kRecordOverhead == sizeof(Record) - 8, "kRecordOverhead is incorrect");
59 
60 } // namespace storage
61 } // namespace foedus
62 #endif // FOEDUS_STORAGE_RECORD_HPP_
foedus::storage::Record
Represents one record in our key-value store.
Definition: record.hpp:33
storage_id.hpp
Definitions of IDs in this package and a few related constant values.
foedus::storage::kRecordOverhead
const uint16_t kRecordOverhead
Byte size of system-managed region per each record.
Definition: record.hpp:56
foedus
Root package of FOEDUS (Fast Optimistic Engine for Data Unification Services).
Definition: assert_nd.hpp:44
foedus::xct::RwLockableXctId
The MCS reader-writer lock variant of LockableXctId.
Definition: xct_id.hpp:1132
foedus::storage::Record::payload_
char payload_[8]
Arbitrary payload given by the user.
Definition: record.hpp:45
xct_id.hpp
Definitions of IDs in this package and a few related constant values.
CXX11_FINAL
#define CXX11_FINAL
Used in public headers in place of "final" of C++11.
Definition: cxx11.hpp:131
CXX11_STATIC_ASSERT
#define CXX11_STATIC_ASSERT(expr, message)
Used in public headers in place of "static_assert" of C++11.
Definition: cxx11.hpp:135
CXX11_FUNC_DELETE
#define CXX11_FUNC_DELETE
Used in public headers in place of " = delete" of C++11.
Definition: cxx11.hpp:128
foedus::storage::Record::owner_id_
xct::RwLockableXctId owner_id_
This indicates the transaction that most recently modified this record.
Definition: record.hpp:39