a node in a linked list of operation_history_objectsAccount history is important for users and wallets even though it is not part of "core validation". Account history is maintained as a linked list stored on disk in a stack. Each account will point to the most recent account history object by ID. When a new operation relativent to that account is processed a new account history object is allcoated at the end of the stack and intialized to point to the prior object. More...

#include <operation_history_object.hpp>

Inheritance diagram for golos::chain::account_transaction_history_object:

Public Member Functions
	account_transaction_history_object ()=delete

template<typename Constructor , typename Allocator >
	account_transaction_history_object (Constructor &&c, allocator< Allocator > a)

Public Attributes
id_type	id

account_name_type	account

operation_history_object::id_type	operation_id
	the account this operation applies to More...

uint32_t	sequence = 0

account_transaction_history_object::id_type	next
	the operation position within the given account More...

Detailed Description

a node in a linked list of operation_history_objects

Account history is important for users and wallets even though it is not part of "core validation". Account history is maintained as a linked list stored on disk in a stack. Each account will point to the most recent account history object by ID. When a new operation relativent to that account is processed a new account history object is allcoated at the end of the stack and intialized to point to the prior object.

This data is never accessed as part of chain validation and therefore can be kept on disk as a memory mapped file. Using a memory mapped file will help the operating system better manage / cache / page files and also accelerates load time.

When the transaction history for a particular account is requested the linked list can be traversed with relatively effecient disk access because of the use of a memory mapped stack.

Definition at line 69 of file operation_history_object.hpp.