internal SSTableBuilder(Stream stream, PlaneDBOptions options)
{
writer = new BlockWriteOnceStream(stream, options.BlockTransformer);
comparer = options.Comparer;
fullySync = options.MaxJournalActions < 0;
dictionary = new SortedList <byte[], byte[]?>(comparer);
}
private static void BlockStreamWriterOnceTest(IBlockTransformer transformer, IBlockCache cache)
{
using var ms = new KeepOpenMemoryStream();
const int COUNT = 100_000;
long expectedLength;
using (var writer = new BlockWriteOnceStream(ms, transformer)) {
using var binaryWriter = new BinaryWriter(writer, Encoding.ASCII, true);
for (var i = 0; i < COUNT; ++i)
{
binaryWriter.Write(i);
}
writer.Write(new byte[1 << 22]);
expectedLength = writer.Length;
}
using (var writer = new BlockReadOnlyStream(ms, transformer, cache: cache)) {
Assert.AreEqual(expectedLength, writer.Length);
using var binaryReader = new BinaryReader(writer, Encoding.ASCII, true);
using var binaryCursorReader = new BinaryReader(writer.CreateCursor(), Encoding.ASCII, true);
for (var i = 0; i < COUNT; ++i)
{
Assert.AreEqual(i, binaryReader.ReadInt32());
Assert.AreEqual(i, binaryCursorReader.ReadInt32());
}
var buf = new byte[1 << 22];
Assert.AreEqual(buf.Length, writer.Read(buf));
Assert.IsTrue(buf.All(i => i == 0));
}
}
