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Refactor NodeStore

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This commit is contained in:
Vinnie Falco
2013-07-17 19:52:13 -07:00
parent 5caaea60c9
commit 8b1592e494
27 changed files with 869 additions and 508 deletions
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61
modules/ripple_app/node/ripple_KeyvaDBBackendFactory.cpp
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@@ -7,15 +7,9 @@
class KeyvaDBBackendFactory::Backend : public NodeStore::Backend
{
public:
typedef UnsignedInteger <32> Key;
enum
{
keyBytes = Key::sizeInBytes
};
explicit Backend (StringPairArray const& keyValues)
: m_path (keyValues ["path"])
Backend (size_t keyBytes, StringPairArray const& keyValues)
: m_keyBytes (keyBytes)
, m_path (keyValues ["path"])
, m_db (KeyvaDB::New (
keyBytes,
File::getCurrentWorkingDirectory().getChildFile (m_path).withFileExtension ("key"),
@@ -33,6 +27,48 @@ public:
return m_path.toStdString ();
}
//--------------------------------------------------------------------------
Status get (void const* key, GetCallback* callback)
{
Status status (ok);
struct ForwardingGetCallback : KeyvaDB::GetCallback
{
ForwardingGetCallback (Backend::GetCallback* callback)
: m_callback (callback)
{
}
void* getStorageForValue (int valueBytes)
{
return m_callback->getStorageForValue (valueBytes);
}
private:
Backend::GetCallback* const m_callback;
};
ForwardingGetCallback cb (callback);
// VFALCO TODO Can't we get KeyvaDB to provide a proper status?
//
bool const found = m_db->get (key, &cb);
if (found)
{
status = ok;
}
else
{
status = notFound;
}
return status;
}
//--------------------------------------------------------------------------
void writeObject (NodeObject::ref object)
{
Blob blob (toBlob (object));
@@ -54,7 +90,7 @@ public:
int valueBytes;
HeapBlock <char> data;
void* createStorageForValue (int valueBytes_)
void* getStorageForValue (int valueBytes_)
{
valueBytes = valueBytes_;
@@ -112,6 +148,7 @@ public:
}
private:
size_t const m_keyBytes;
String m_path;
ScopedPointer <KeyvaDB> m_db;
};
@@ -138,9 +175,9 @@ String KeyvaDBBackendFactory::getName () const
return "KeyvaDB";
}
NodeStore::Backend* KeyvaDBBackendFactory::createInstance (StringPairArray const& keyValues)
NodeStore::Backend* KeyvaDBBackendFactory::createInstance (size_t keyBytes, StringPairArray const& keyValues)
{
return new KeyvaDBBackendFactory::Backend (keyValues);
return new KeyvaDBBackendFactory::Backend (keyBytes, keyValues);
}
//------------------------------------------------------------------------------