9bb89ab323* Improve const correctness and adhere to 'const' specifier positioning style Co-authored-by: Mario Ortiz Manero <marioortizmanero@gmail.com>
66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
#pragma once
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#include <nano/lib/lmdbconfig.hpp>
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#include <nano/node/lmdb/lmdb_txn.hpp>
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#include <nano/secure/store.hpp>
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namespace nano
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{
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/**
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* RAII wrapper for MDB_env
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*/
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class mdb_env final
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{
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public:
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/** Environment options, most of which originates from the config file. */
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class options final
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{
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friend class mdb_env;
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public:
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static options make ()
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{
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return options ();
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}
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options & set_config (nano::lmdb_config config_a)
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{
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config = config_a;
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return *this;
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}
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options & set_use_no_mem_init (int use_no_mem_init_a)
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{
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use_no_mem_init = use_no_mem_init_a;
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return *this;
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}
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/** Used by the wallet to override the config map size */
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options & override_config_map_size (std::size_t map_size_a)
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{
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config.map_size = map_size_a;
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return *this;
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}
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/** Used by the wallet to override the sync strategy */
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options & override_config_sync (nano::lmdb_config::sync_strategy sync_a)
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{
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config.sync = sync_a;
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return *this;
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}
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private:
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bool use_no_mem_init{ false };
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nano::lmdb_config config;
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};
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mdb_env (bool &, boost::filesystem::path const &, nano::mdb_env::options options_a = nano::mdb_env::options::make ());
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void init (bool &, boost::filesystem::path const &, nano::mdb_env::options options_a = nano::mdb_env::options::make ());
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~mdb_env ();
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operator MDB_env * () const;
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nano::read_transaction tx_begin_read (mdb_txn_callbacks txn_callbacks = mdb_txn_callbacks{}) const;
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nano::write_transaction tx_begin_write (mdb_txn_callbacks txn_callbacks = mdb_txn_callbacks{}) const;
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MDB_txn * tx (nano::transaction const & transaction_a) const;
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MDB_env * environment;
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};
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}
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