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Plug backends into NodeStore

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This commit is contained in:
Vinnie Falco
2013-07-10 11:48:31 -07:00
parent c346d4d613
commit 72769c5c40
20 changed files with 270 additions and 143 deletions
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96
modules/ripple_app/node/ripple_NodeStore.cpp
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@@ -4,16 +4,62 @@
*/
//==============================================================================
NodeStore::NodeStore (int cacheSize, int cacheAge) :
mCache ("NodeStore", cacheSize, cacheAge), mNegativeCache ("HashedObjectNegativeCache", 0, 120),
mWriteGeneration (0), mWriteLoad (0), mWritePending (false), mLevelDB (false), mEphemeralDB (false)
Array <NodeStore::BackendFactory*> NodeStore::s_factories;
NodeStore::NodeStore (String parameters, int cacheSize, int cacheAge)
: mCache ("NodeStore", cacheSize, cacheAge)
, mNegativeCache ("HashedObjectNegativeCache", 0, 120)
, mWriteGeneration (0)
, mWriteLoad (0)
, mWritePending (false)
, mLevelDB (false)
, mEphemeralDB (false)
{
StringPairArray keyValues = parseKeyValueParameters (parameters, '|');
String const& type = keyValues ["type"];
if (type.isNotEmpty ())
{
BackendFactory* factory = nullptr;
for (int i = 0; i < s_factories.size (); ++i)
{
if (s_factories [i]->getName () == type)
{
factory = s_factories [i];
break;
}
}
if (factory != nullptr)
{
m_backend = factory->createInstance (keyValues);
}
else
{
throw std::runtime_error ("unkown backend type");
}
}
else
{
throw std::runtime_error ("missing backend type");
}
mWriteSet.reserve (128);
// VFALCO TODO Eliminate usage of theConfig
// This can be done by passing required parameters through
// the backendParameters string.
//
if (theConfig.NODE_DB == "leveldb" || theConfig.NODE_DB == "LevelDB")
{
mLevelDB = true;
}
else if (theConfig.NODE_DB == "SQLite" || theConfig.NODE_DB == "sqlite")
{
mLevelDB = false;
}
else
{
WriteLog (lsFATAL, NodeObject) << "Incorrect database selection";
@@ -21,7 +67,43 @@ NodeStore::NodeStore (int cacheSize, int cacheAge) :
}
if (!theConfig.LDB_EPHEMERAL.empty ())
{
// VFALCO NOTE This is cryptic
mEphemeralDB = true;
}
}
void NodeStore::addBackendFactory (BackendFactory& factory)
{
s_factories.add (&factory);
}
// DEPRECATED
bool NodeStore::isLevelDB ()
{
return mLevelDB;
}
float NodeStore::getCacheHitRate ()
{
return mCache.getHitRate ();
}
bool NodeStore::store (NodeObjectType type, uint32 index, Blob const& data,
uint256 const& hash)
{
if (mLevelDB)
return storeLevelDB (type, index, data, hash);
return storeSQLite (type, index, data, hash);
}
NodeObject::pointer NodeStore::retrieve (uint256 const& hash)
{
if (mLevelDB)
return retrieveLevelDB (hash);
return retrieveSQLite (hash);
}
void NodeStore::tune (int size, int age)
@@ -30,6 +112,12 @@ void NodeStore::tune (int size, int age)
mCache.setTargetAge (age);
}
void NodeStore::sweep ()
{
mCache.sweep ();
mNegativeCache.sweep ();
}
void NodeStore::waitWrite ()
{
boost::mutex::scoped_lock sl (mWriteMutex);
@@ -617,5 +705,3 @@ int NodeStore::import (const std::string& file)
WriteLog (lsWARNING, NodeObject) << "Imported " << count << " nodes";
return count;
}
// vim:ts=4