public override int Read(ReadOnlySpan <byte> path, ulong offset, Span <byte> buffer, ref FuseFileInfo fi, Guid fileGuid)
{
var context = FileContexts[fi.fh];
path = base.TransformPath(path);
if (debug)
{
Console.WriteLine($"NeoFS::Read()");
}
if (context.ExtAssetSha1 != null) // Asset Mode
{
return(base.AssetRead(path, offset, buffer, ref fi, fileGuid));
}
if (fi.fh == 0)
{
var newFd = LibC.open(toBp(path), fi.flags);
if (newFd > 0)
{
fi.fh = (ulong)newFd;
}
else
{
return(-LibC.errno);
}
}
ssize_t res;
fixed(void *vbuf = buffer)
{
res = LibC.pread((int)fi.fh, vbuf, buffer.Length, (long)offset);
}
if (res < 0)
{
return(-LibC.errno);
}
return((int)res);
}