private void LoadLastTermAndIndex()
{
using (var tx = _env.BeginReadOnlyTransaction())
{
LoadLastTermAndIndex(tx);
}
}
public void CanSaveAndReadString()
{
string key = "jam!";
string value = "jim!";
using (var db = _env.OpenDatabase(DatabaseName, new DatabaseConfig(DbFlags.Create)))
{
using (var tx = _env.BeginTransaction())
{
tx.Put(db, key, value);
tx.Commit();
}
using (var tx = _env.BeginReadOnlyTransaction())
{
Bufferable b = default;
var success = tx.TryGet(db, key, out b);
Assert.True(success);
Assert.Equal(value, b);
}
}
}
public long GetTotalAllocated(int bucketIndex = -1)
{
using (var txn = _env.BeginReadOnlyTransaction())
using (var aC = _allocatedDb.OpenReadOnlyCursor(txn))
{
BufferRef lastAllocated = default;
var totalAllocated = 0L;
if (bucketIndex == -1)
{
byte bucketIndexByte = 0;
if (aC.TryGet(ref bucketIndexByte, ref lastAllocated, CursorGetOption.First))
{
var dataSize = SharedMemoryPool.BucketIndexToBufferSize(bucketIndexByte, _pageSize);
totalAllocated += dataSize * (long)aC.Count();
while (aC.TryGet(ref bucketIndexByte, ref lastAllocated, CursorGetOption.NextNoDuplicate))
{
dataSize = SharedMemoryPool.BucketIndexToBufferSize(bucketIndex, _pageSize);
totalAllocated += dataSize * (long)aC.Count();
}
}
}
else
{
BufferRef.EnsureBucketIndexInRange(bucketIndex);
var bucketIndexByte = (byte)bucketIndex;
if (aC.TryGet(ref bucketIndexByte, ref lastAllocated, CursorGetOption.Set))
{
var dataSize = SharedMemoryPool.BucketIndexToBufferSize(bucketIndex, _pageSize);
totalAllocated += dataSize * (long)aC.Count();
}
}
_lastTotalSize = totalAllocated;
return(totalAllocated);
}
}
private void ReadOffsetPosition()
{
using (var txn = env.BeginReadOnlyTransaction())
using (var cursor = db.OpenReadOnlyCursor(txn))
{
var key = OffsetKey;
var buffer = ArrayPool <byte> .Shared.Rent(8);
var value = new DirectBuffer(buffer);
if (cursor.TryGet(ref key, ref value, CursorGetOption.Last))
{
this.offset = BinaryPrimitives.ReadUInt64LittleEndian(value.Span);
}
}
}
public ReadOnlyTransaction OpenReadOnlyTransaction()
{
ThrowIfDisposed();
return(new ReadOnlyTransaction(environment.BeginReadOnlyTransaction(), databasesHolder, indexesHolder));
}