Fix-sized slot for each record, which is placed at the end of data region. More...

Detailed Description

Fix-sized slot for each record, which is placed at the end of data region.

Definition at line 161 of file hash_page_impl.hpp.

#include <hash_page_impl.hpp>

Collaboration diagram for foedus::storage::hash::HashDataPage::Slot:

Public Member Functions
uint16_t	get_aligned_key_length () const

uint16_t	get_max_payload () const

Public Attributes
xct::RwLockableXctId	tid_
	TID of the record. More...

uint16_t	offset_
	Byte offset in data_ where this record starts. More...

uint16_t	physical_record_length_
	Byte count this record occupies. More...

uint16_t	key_length_
	Byte length of key of the record. More...

uint16_t	payload_length_
	Byte length of the payload. More...

HashValue	hash_
	Full hash of the key of the record. More...

Member Function Documentation

uint16_t foedus::storage::hash::HashDataPage::Slot::get_aligned_key_length ( ) const

inline

Definition at line 196 of file hash_page_impl.hpp.

References foedus::assorted::align8().

Referenced by foedus::storage::hash::HashDataPage::assert_entries_impl(), get_max_payload(), and foedus::storage::hash::operator<<().

196 { return assorted::align8(key_length_); }

foedus::assorted::align8

T align8(T value)

8-alignment.

Definition: assorted_func.hpp:58

foedus::storage::hash::HashDataPage::Slot::key_length_

uint16_t key_length_

Byte length of key of the record.

Definition: hash_page_impl.hpp:184

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uint16_t foedus::storage::hash::HashDataPage::Slot::get_max_payload ( ) const

inline

Definition at line 197 of file hash_page_impl.hpp.

References get_aligned_key_length().

Referenced by foedus::storage::hash::ReserveRecords::find_or_create_or_expand().

                                             {
       return physical_record_length_ - get_aligned_key_length();
     }

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Member Data Documentation

HashValue foedus::storage::hash::HashDataPage::Slot::hash_

Full hash of the key of the record.

This is immutable once the record is allocated.

Definition at line 194 of file hash_page_impl.hpp.

Referenced by foedus::storage::hash::HashDataPage::assert_entries_impl(), foedus::storage::hash::HashDataPage::compare_slot_key(), foedus::storage::hash::HashDataPage::create_record_in_snapshot(), foedus::storage::hash::operator<<(), foedus::storage::hash::HashDataPage::reserve_record(), and foedus::storage::hash::HashDataPage::search_key_physical().

uint16_t foedus::storage::hash::HashDataPage::Slot::key_length_

Byte length of key of the record.

Padding is not included. This is immutable once the record is allocated.

Definition at line 184 of file hash_page_impl.hpp.

Referenced by foedus::storage::hash::HashDataPage::assert_entries_impl(), foedus::storage::hash::HashDataPage::compare_slot_key(), foedus::storage::hash::HashDataPage::create_record_in_snapshot(), foedus::storage::hash::operator<<(), foedus::storage::hash::RecordLocation::populate_logical(), foedus::storage::hash::RecordLocation::populate_physical(), foedus::storage::hash::HashDataPage::reserve_record(), and foedus::storage::hash::HashDataPage::search_key_physical().

uint16_t foedus::storage::hash::HashDataPage::Slot::offset_

Byte offset in data_ where this record starts.

This is immutable once the record is allocated.

Definition at line 171 of file hash_page_impl.hpp.

uint16_t foedus::storage::hash::HashDataPage::Slot::payload_length_

Byte length of the payload.

Padding is not included. This is mutable. Only changed with update. If the updated payload is too large for physical_record_length_, we move the record, leaving the deleted and moved flags in this old record.

Definition at line 191 of file hash_page_impl.hpp.

Referenced by foedus::storage::hash::HashDataPage::assert_entries_impl(), foedus::storage::hash::HashDataPage::create_record_in_snapshot(), foedus::storage::hash::operator<<(), foedus::storage::hash::RecordLocation::populate_logical(), foedus::storage::hash::RecordLocation::populate_physical(), and foedus::storage::hash::HashDataPage::reserve_record().

uint16_t foedus::storage::hash::HashDataPage::Slot::physical_record_length_

Byte count this record occupies.

This is immutable once the record is allocated.

Invariant: physical_record_length_ % 8 == 0; physical_record_length_ >= align8(key_length_) + align8(payload_length_); offset_ + physical_record_length_ == next record's offset_

Definition at line 179 of file hash_page_impl.hpp.

Referenced by foedus::storage::hash::HashDataPage::assert_entries_impl(), foedus::storage::hash::HashDataPage::create_record_in_snapshot(), foedus::storage::hash::HashDataPage::next_offset(), foedus::storage::hash::operator<<(), foedus::storage::hash::RecordLocation::populate_logical(), foedus::storage::hash::RecordLocation::populate_physical(), and foedus::storage::hash::HashDataPage::reserve_record().

xct::RwLockableXctId foedus::storage::hash::HashDataPage::Slot::tid_

TID of the record.

Definition at line 165 of file hash_page_impl.hpp.

Referenced by foedus::storage::hash::HashDataPage::create_record_in_snapshot(), foedus::storage::hash::ReserveRecords::expand_record(), foedus::storage::hash::operator<<(), foedus::storage::hash::RecordLocation::populate_logical(), foedus::storage::hash::RecordLocation::populate_physical(), foedus::storage::hash::HashDataPage::reserve_record(), foedus::storage::hash::HashDataPage::search_key_physical(), foedus::storage::hash::HashStoragePimpl::track_moved_record_search(), and foedus::storage::hash::HashStoragePimpl::verify_single_thread_data().

The documentation for this struct was generated from the following file:

/home/shino/foedus_code/foedus-core/include/foedus/storage/hash/hash_page_impl.hpp

Detailed Description

Public Member Functions

Public Attributes

Member Function Documentation

Member Data Documentation