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117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_APP_DATA_DATABASECON_H_INCLUDED
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#define RIPPLE_APP_DATA_DATABASECON_H_INCLUDED
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#include <ripple/core/Config.h>
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#include <ripple/app/data/SociDB.h>
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#include <boost/filesystem/path.hpp>
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#include <mutex>
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#include <string>
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namespace soci {
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class session;
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}
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namespace ripple {
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template<class T, class TMutex>
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class LockedPointer
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{
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public:
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using mutex = TMutex;
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private:
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T* it_;
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std::unique_lock<mutex> lock_;
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public:
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LockedPointer (T* it, mutex& m) : it_ (it), lock_ (m)
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{
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}
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LockedPointer (LockedPointer&& rhs) noexcept
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: it_ (rhs.it_), lock_ (std::move (rhs.lock_))
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{
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}
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LockedPointer () = delete;
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LockedPointer (LockedPointer const& rhs) = delete;
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LockedPointer& operator=(LockedPointer const& rhs) = delete;
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T* get ()
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{
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return it_;
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}
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T& operator*()
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{
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return *it_;
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}
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T* operator->()
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{
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return it_;
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}
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explicit operator bool() const
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{
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return bool(it_);
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}
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};
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using LockedSociSession = LockedPointer<soci::session, std::recursive_mutex>;
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class DatabaseCon
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{
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public:
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struct Setup
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{
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Config::StartUpType startUp = Config::NORMAL;
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bool standAlone = false;
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boost::filesystem::path dataDir;
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};
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DatabaseCon (Setup const& setup,
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std::string const& name,
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const char* initString[],
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int countInit);
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soci::session& getSession()
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{
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return *session_;
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}
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LockedSociSession checkoutDb()
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{
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return LockedSociSession(session_.get (), lock_);
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}
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void setupCheckpointing (JobQueue*);
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private:
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std::unique_ptr<WALCheckpointer> walCheckpointer_;
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// shared_ptr to handle lifetime issues with walCheckpointer_
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// never null.
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std::shared_ptr<soci::session> session_;
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LockedSociSession::mutex lock_;
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};
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DatabaseCon::Setup
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setup_DatabaseCon (Config const& c);
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} // ripple
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#endif
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