internal ReadOnlySequenceSource(FileBufferingWriter writer, int segmentLength)
{
var buffer = writer.buffer;
tail = buffer.Memory.Slice(0, writer.position);
accessor = writer.fileBackend is null ?
null :
new ReadOnlySequenceAccessor(writer.fileBackend, segmentLength);
session = writer.EnterReadMode(this);
}
internal MemoryMappedFileManager(FileBufferingWriter writer, long offset, long length)
{
Debug.Assert(length <= int.MaxValue);
Debug.Assert(writer.fileBackend != null);
mappedFile = CreateMemoryMappedFile(writer.fileBackend);
accessor = mappedFile.CreateViewAccessor(offset, length, MemoryMappedFileAccess.ReadWrite);
accessor.SafeMemoryMappedViewHandle.AcquirePointer(ref ptr);
Debug.Assert(ptr != default);
session = writer.EnterReadMode(this);
Debug.Assert(writer.IsReading);
}
internal ReaderStream(FileBufferingWriter writer, bool useAsyncIO)
{
writer.GetWrittenContentAsStream(out source, useAsyncIO);
session = writer.EnterReadMode(this);
}
internal ReaderStream(FileBufferingWriter writer)
{
writer.GetWrittenContentAsStream(out source);
session = writer.EnterReadMode(this);
}