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Add ledger account iterator for the unconfirmed ledger set.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| #include <nano/secure/account_iterator_impl.hpp> | ||
| #include <nano/secure/ledger_set_any.hpp> | ||
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| template class nano::account_iterator<nano::ledger_set_any>; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| #pragma once | ||
| #include <nano/lib/numbers.hpp> | ||
| #include <nano/secure/account_info.hpp> | ||
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| #include <optional> | ||
| #include <utility> | ||
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| namespace nano::secure | ||
| { | ||
| class transaction; | ||
| } | ||
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| namespace nano | ||
| { | ||
| // This class iterates account entries | ||
| template <typename Set> | ||
| class account_iterator | ||
| { | ||
| public: | ||
| // Creates an end () iterator | ||
| // 'transaction' and 'set' are nullptr so all end () iterators compare equal | ||
| account_iterator (); | ||
| account_iterator (secure::transaction const & transaction, Set const & set, std::optional<std::pair<nano::account, nano::account_info>> const & item); | ||
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| // Compares if these iterators hold the same 'item'. | ||
| // Undefined behavior if this and other don't hold the same 'set' and 'transaction' | ||
| bool operator== (account_iterator const & other) const; | ||
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| public: // Dereferencing, undefined behavior when called on an end () iterator | ||
| // Advances the iterator to the next greater nano::account | ||
| // If there are no more accounts, convert this to an end () iterator | ||
| account_iterator & operator++ (); | ||
| std::pair<nano::account, nano::account_info> const & operator* () const; | ||
| std::pair<nano::account, nano::account_info> const * operator->() const; | ||
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| private: | ||
| secure::transaction const * transaction; | ||
| Set const * set{ nullptr }; | ||
| // Current item at the position of the iterator | ||
| // std::nullopt if an end () iterator | ||
| std::optional<std::pair<nano::account, nano::account_info>> item; | ||
| }; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| #include <nano/secure/account_info.hpp> | ||
| #include <nano/secure/account_iterator.hpp> | ||
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| template <typename Set> | ||
| nano::account_iterator<Set>::account_iterator () | ||
| { | ||
| } | ||
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| template <typename Set> | ||
| nano::account_iterator<Set>::account_iterator (secure::transaction const & transaction, Set const & set, std::optional<std::pair<nano::account, nano::account_info>> const & item) : | ||
| transaction{ &transaction }, | ||
| set{ &set }, | ||
| item{ item } | ||
| { | ||
| } | ||
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| template <typename Set> | ||
| bool nano::account_iterator<Set>::operator== (account_iterator const & other) const | ||
| { | ||
| debug_assert (set == nullptr || other.set == nullptr || set == other.set); | ||
| return item == other.item; | ||
| } | ||
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| // Iteration is performed by calling set->account_lower_bound (tx, next) where next is one higher than the current iterator | ||
| template <typename Set> | ||
| auto nano::account_iterator<Set>::operator++ () -> account_iterator<Set> & | ||
| { | ||
| auto next = item.value ().first.number () + 1; | ||
| if (next != 0) | ||
| { | ||
| *this = set->account_lower_bound (*transaction, next); | ||
| } | ||
| else | ||
| { | ||
| // Convert to and end iterator if there are no more items | ||
| *this = account_iterator<Set>{}; | ||
| } | ||
| return *this; | ||
| } | ||
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| template <typename Set> | ||
| std::pair<nano::account, nano::account_info> const & nano::account_iterator<Set>::operator* () const | ||
| { | ||
| return item.value (); | ||
| } | ||
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| template <typename Set> | ||
| std::pair<nano::account, nano::account_info> const * nano::account_iterator<Set>::operator->() const | ||
| { | ||
| return &item.value (); | ||
| } |
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