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https://github.com/XRPLF/rippled.git
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137 lines
3.3 KiB
C++
137 lines
3.3 KiB
C++
#include <xrpl/nodestore/detail/ManagerImp.h>
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#include <xrpl/basics/BasicConfig.h>
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#include <xrpl/basics/contract.h>
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#include <xrpl/beast/utility/Journal.h>
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#include <xrpl/beast/utility/instrumentation.h>
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#include <xrpl/nodestore/Backend.h>
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#include <xrpl/nodestore/Database.h>
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#include <xrpl/nodestore/Manager.h>
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#include <xrpl/nodestore/NodeObject.h>
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#include <xrpl/nodestore/Scheduler.h>
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#include <xrpl/nodestore/detail/DatabaseNodeImp.h>
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#include <boost/algorithm/string/predicate.hpp>
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#include <algorithm>
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#include <cstddef>
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#include <memory>
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#include <mutex>
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#include <stdexcept>
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#include <string>
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#include <utility>
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namespace xrpl {
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namespace NodeStore {
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ManagerImp&
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ManagerImp::instance()
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{
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static ManagerImp _;
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return _;
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}
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void
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ManagerImp::missing_backend()
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{
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Throw<std::runtime_error>(
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"Your xrpld.cfg is missing a [node_db] entry, "
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"please see the xrpld-example.cfg file!");
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}
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// We shouldn't rely on global variables for lifetime management because their
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// lifetime is not well-defined. ManagerImp may get destroyed before the Factory
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// classes, and then, calling Manager::instance().erase() in the destructors of
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// the Factory classes is an undefined behaviour.
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void
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registerNuDBFactory(Manager& manager);
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void
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registerRocksDBFactory(Manager& manager);
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void
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registerNullFactory(Manager& manager);
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void
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registerMemoryFactory(Manager& manager);
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ManagerImp::ManagerImp()
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{
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registerNuDBFactory(*this);
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registerRocksDBFactory(*this);
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registerNullFactory(*this);
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registerMemoryFactory(*this);
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}
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std::unique_ptr<Backend>
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ManagerImp::make_Backend(
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Section const& parameters,
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std::size_t burstSize,
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Scheduler& scheduler,
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beast::Journal journal)
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{
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std::string const type{get(parameters, "type")};
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if (type.empty())
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missing_backend();
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auto factory{find(type)};
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if (factory == nullptr)
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{
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missing_backend();
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}
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return factory->createInstance(NodeObject::keyBytes, parameters, burstSize, scheduler, journal);
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}
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std::unique_ptr<Database>
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ManagerImp::make_Database(
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std::size_t burstSize,
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Scheduler& scheduler,
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int readThreads,
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Section const& config,
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beast::Journal journal)
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{
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auto backend{make_Backend(config, burstSize, scheduler, journal)};
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backend->open();
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return std::make_unique<DatabaseNodeImp>(
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scheduler, readThreads, std::move(backend), config, journal);
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}
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void
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ManagerImp::insert(Factory& factory)
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{
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std::lock_guard const _(mutex_);
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list_.push_back(&factory);
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}
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void
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ManagerImp::erase(Factory& factory)
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{
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std::lock_guard const _(mutex_);
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auto const iter = std::find_if(
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list_.begin(), list_.end(), [&factory](Factory* other) { return other == &factory; });
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XRPL_ASSERT(iter != list_.end(), "xrpl::NodeStore::ManagerImp::erase : valid input");
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list_.erase(iter);
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}
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Factory*
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ManagerImp::find(std::string const& name)
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{
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std::lock_guard const _(mutex_);
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auto const iter = std::find_if(list_.begin(), list_.end(), [&name](Factory* other) {
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return boost::iequals(name, other->getName());
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});
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if (iter == list_.end())
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return nullptr;
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return *iter;
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}
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//------------------------------------------------------------------------------
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Manager&
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Manager::instance()
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{
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return ManagerImp::instance();
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}
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} // namespace NodeStore
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} // namespace xrpl
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