void Put(IChunkCache cache, int i)
{
var content = new byte[1024];
PackUnpack.PackInt32BE(content, 0, i);
cache.Put(CalcHash(content), ByteBuffer.NewAsync(content));
}
bool Get(IChunkCache cache, int i)
{
var content = new byte[1024];
PackUnpack.PackInt32BE(content, 0, i);
return(cache.Get(CalcHash(content)).Result.Length == 1024);
}
public void BigCompaction()
{
using var fileCollection = new InMemoryFileCollection();
var logger = new LoggerMock();
using var db = NewKeyValueDB(new KeyValueDBOptions
{
FileCollection = fileCollection,
Compression = new NoCompressionStrategy(),
CompactorScheduler = null,
FileSplitSize = 10000,
Logger = logger
});
using (var tr = db.StartTransaction())
{
var key = new byte[100];
var value = new byte[2000];
for (var i = 0; i < 2000; i++)
{
PackUnpack.PackInt32BE(key, 0, i);
tr.CreateOrUpdateKeyValue(key, value);
}
tr.Commit();
}
using (var tr = db.StartTransaction())
{
var key = new byte[100];
for (var i = 0; i < 2000; i += 2)
{
PackUnpack.PackInt32BE(key, 0, i);
tr.FindExactKey(key);
tr.EraseCurrent();
}
for (var i = 0; i < 2000; i += 3)
{
PackUnpack.PackInt32BE(key, 0, i);
if (tr.FindExactKey(key))
{
tr.EraseCurrent();
}
}
Assert.Equal(667, tr.GetKeyValueCount());
tr.Commit();
}
db.Compact(CancellationToken.None);
Assert.Equal(513u, logger.MarkedForDeleteCount);
}
public void WriteInt32(int value)
{
if (Pos + 4 > End)
{
FlushBuffer();
if (Pos + 4 > End)
{
var b = new byte[4];
PackUnpack.PackInt32BE(b, 0, value);
WriteBlock(b);
return;
}
}
PackUnpack.PackInt32BE(Buf, Pos, value);
Pos += 4;
}
public void WriteInt32(int value)
{
if (Pos + 4 > End)
{
FlushBuffer();
if (Pos + 4 > End)
{
Span <byte> buf = stackalloc byte[4];
BinaryPrimitives.WriteInt32BigEndian(buf, value);
WriteBlock(buf);
return;
}
}
PackUnpack.PackInt32BE(Buf, Pos, value);
Pos += 4;
}
