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Reorganize source file hierarchy:
* Rename unity files * Move some modules to new subdirectories * Remove obsolete Visual Studio project files * Remove obsolete coding style and TODO list
This commit is contained in:
Vinnie Falco
248
src/ripple/module/app/node/SqliteFactory.cpp
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248
src/ripple/module/app/node/SqliteFactory.cpp
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//------------------------------------------------------------------------------
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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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namespace ripple {
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static const char* s_nodeStoreDBInit [] =
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{
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"PRAGMA synchronous=NORMAL;",
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"PRAGMA journal_mode=WAL;",
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"PRAGMA journal_size_limit=1582080;",
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#if (ULONG_MAX > UINT_MAX) && !defined (NO_SQLITE_MMAP)
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"PRAGMA mmap_size=171798691840;",
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#endif
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"BEGIN TRANSACTION;",
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"CREATE TABLE CommittedObjects ( \
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Hash CHARACTER(64) PRIMARY KEY, \
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ObjType CHAR(1) NOT NULL, \
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LedgerIndex BIGINT UNSIGNED, \
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Object BLOB \
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);",
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"END TRANSACTION;"
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};
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static int s_nodeStoreDBCount = RIPPLE_ARRAYSIZE (s_nodeStoreDBInit);
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//------------------------------------------------------------------------------
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class SqliteBackend : public NodeStore::Backend
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{
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public:
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explicit SqliteBackend (std::string const& path)
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: m_name (path)
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, m_db (new DatabaseCon(path, s_nodeStoreDBInit, s_nodeStoreDBCount))
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{
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beast::String s;
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// VFALCO TODO Remove this dependency on theConfig
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//
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s << "PRAGMA cache_size=-" << beast::String (getConfig ().getSize(siHashNodeDBCache) * 1024);
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m_db->getDB()->executeSQL (s.toStdString ().c_str ());
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}
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~SqliteBackend()
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{
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}
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std::string getName()
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{
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return m_name;
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}
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//--------------------------------------------------------------------------
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NodeStore::Status fetch (void const* key, NodeObject::Ptr* pObject)
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{
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NodeStore::Status result = NodeStore::ok;
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pObject->reset ();
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{
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DeprecatedScopedLock sl (m_db->getDBLock());
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uint256 const hash (uint256::fromVoid (key));
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static SqliteStatement pSt (m_db->getDB()->getSqliteDB(),
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"SELECT ObjType,LedgerIndex,Object FROM CommittedObjects WHERE Hash = ?;");
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pSt.bind (1, to_string (hash));
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if (pSt.isRow (pSt.step()))
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{
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// VFALCO NOTE This is unfortunately needed,
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// the DatabaseCon creates the blob?
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Blob data (pSt.getBlob (2));
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*pObject = NodeObject::createObject (
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getTypeFromString (pSt.peekString (0)),
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pSt.getUInt32 (1),
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std::move(data),
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hash);
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}
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else
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{
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result = NodeStore::notFound;
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}
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pSt.reset();
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}
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return result;
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}
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void store (NodeObject::ref object)
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{
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NodeStore::Batch batch;
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batch.push_back (object);
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storeBatch (batch);
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}
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void storeBatch (NodeStore::Batch const& batch)
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{
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// VFALCO TODO Rewrite this to use Beast::db
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DeprecatedScopedLock sl (m_db->getDBLock());
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static SqliteStatement pStB (m_db->getDB()->getSqliteDB(), "BEGIN TRANSACTION;");
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static SqliteStatement pStE (m_db->getDB()->getSqliteDB(), "END TRANSACTION;");
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static SqliteStatement pSt (m_db->getDB()->getSqliteDB(),
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"INSERT OR IGNORE INTO CommittedObjects "
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"(Hash,ObjType,LedgerIndex,Object) VALUES (?, ?, ?, ?);");
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pStB.step();
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pStB.reset();
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BOOST_FOREACH (NodeObject::Ptr const& object, batch)
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{
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doBind (pSt, object);
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pSt.step();
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pSt.reset();
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}
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pStE.step();
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pStE.reset();
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}
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void for_each (std::function <void(NodeObject::Ptr)> f)
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{
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// No lock needed as per the for_each() API
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uint256 hash;
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static SqliteStatement pSt(m_db->getDB()->getSqliteDB(),
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"SELECT ObjType,LedgerIndex,Object,Hash FROM CommittedObjects;");
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while (pSt.isRow (pSt.step()))
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{
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hash.SetHexExact(pSt.getString(3));
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// VFALCO NOTE This is unfortunately needed,
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// the DatabaseCon creates the blob?
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Blob data (pSt.getBlob (2));
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NodeObject::Ptr const object (NodeObject::createObject (
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getTypeFromString (pSt.peekString (0)),
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pSt.getUInt32 (1),
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std::move(data),
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hash));
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f (object);
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}
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pSt.reset ();
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}
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int getWriteLoad ()
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{
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return 0;
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}
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//--------------------------------------------------------------------------
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void doBind (SqliteStatement& statement, NodeObject::ref object)
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{
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char const* type;
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switch (object->getType())
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{
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case hotLEDGER: type = "L"; break;
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case hotTRANSACTION: type = "T"; break;
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case hotACCOUNT_NODE: type = "A"; break;
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case hotTRANSACTION_NODE: type = "N"; break;
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default: type = "U";
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}
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statement.bind(1, to_string (object->getHash()));
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statement.bind(2, type);
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statement.bind(3, object->getLedgerIndex());
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statement.bindStatic(4, object->getData());
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}
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NodeObjectType getTypeFromString (std::string const& s)
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{
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NodeObjectType type = hotUNKNOWN;
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if (!s.empty ())
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{
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switch (s [0])
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{
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case 'L': type = hotLEDGER; break;
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case 'T': type = hotTRANSACTION; break;
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case 'A': type = hotACCOUNT_NODE; break;
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case 'N': type = hotTRANSACTION_NODE; break;
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}
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}
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return type;
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}
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private:
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std::string const m_name;
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std::unique_ptr <DatabaseCon> m_db;
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};
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//------------------------------------------------------------------------------
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class SqliteFactory : public NodeStore::Factory
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{
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public:
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beast::String getName () const
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{
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return "Sqlite";
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}
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std::unique_ptr <NodeStore::Backend> createInstance (
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size_t, NodeStore::Parameters const& keyValues,
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NodeStore::Scheduler&, beast::Journal)
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{
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return std::make_unique <SqliteBackend> (keyValues ["path"].toStdString ());
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}
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};
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//------------------------------------------------------------------------------
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std::unique_ptr <NodeStore::Factory> make_SqliteFactory ()
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{
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return std::make_unique <SqliteFactory> ();
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}
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}
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