public DB GetDB(string filePath, Dictionary <string, string> options = null)
{
DB db = null;
if (dbCache.ContainsKey(filePath))
{
DBLock lockObj = dbCache[filePath];
// inc the lockcount
lockObj.lockCount = lockObj.lockCount + 1;
// save it back in the list
dbCache[filePath] = lockObj;
// store the db obj for return
db = lockObj.DB;
}
else
{
// create the new DB
Options levelDBOptions = new Options();
levelDBOptions.CreateIfMissing = true;
db = DB.Open(filePath, levelDBOptions);
// create the new lock object
DBLock lockObj = new DBLock();
lockObj.DB = db;
// store the new lock obj
dbCache[filePath] = lockObj;
}
return(db);
}
public void Close(string filePath)
{
if (dbCache.ContainsKey(filePath))
{
DBLock lockObj = dbCache[filePath];
lockObj.lockCount -= 1;
if (lockObj.lockCount > 0)
{
dbCache[filePath] = lockObj;
}
else
{
dbCache.Remove(filePath);
lockObj.DB.Dispose();
}
}
else
{
throw new DBNotFoundException("Requested DB not found or already closed: " + filePath);
}
}
public DB GetDB(string filePath, Dictionary<string, string> options = null)
{
DB db = null;
if (dbCache.ContainsKey(filePath))
{
DBLock lockObj = dbCache[filePath];
// inc the lockcount
lockObj.lockCount = lockObj.lockCount + 1;
// save it back in the list
dbCache[filePath] = lockObj;
// store the db obj for return
db = lockObj.DB;
}
else
{
// create the new DB
Options levelDBOptions = new Options();
levelDBOptions.CreateIfMissing = true;
db = DB.Open(filePath, levelDBOptions);
// create the new lock object
DBLock lockObj = new DBLock();
lockObj.DB = db;
// store the new lock obj
dbCache[filePath] = lockObj;
}
return db;
}
