public XZOutputStream(Stream s, int threads)
{
if (threads <= 0)
{
throw new ArgumentOutOfRangeException("threads");
}
if (threads > Environment.ProcessorCount)
{
Trace.TraceWarning("{0} threads required, but only {1} processors available", threads, Environment.ProcessorCount);
threads = Environment.ProcessorCount;
}
_mInnerStream = s;
var mt = new LzmaMT()
{
flags = 0,
block_size = 0,
timeout = 0,
preset = Preset,
filters = IntPtr.Zero,
check = LzmaCheck.LzmaCheckCrc64,
threads = (uint)threads
};
var ret = Native.lzma_stream_encoder_mt(ref _lzmaStream, ref mt);
//var ret = Native.lzma_easy_encoder(ref _lzmaStream, Preset, LzmaCheck.LzmaCheckCrc64);
_inbuf = Marshal.AllocHGlobal(BufSize);
_outbuf = Marshal.AllocHGlobal(BufSize);
_lzmaStream.avail_in = 0;
_lzmaStream.next_out = _outbuf;
_lzmaStream.avail_out = BufSize;
if (ret == LzmaReturn.LzmaOK)
{
return;
}
switch (ret)
{
case LzmaReturn.LzmaMemError:
throw new Exception("Memory allocation failed");
case LzmaReturn.LzmaOptionsError:
throw new Exception("Specified preset is not supported");
case LzmaReturn.LzmaUnsupportedCheck:
throw new Exception("Specified integrity check is not supported");
default:
throw new Exception("Unknown error, possibly a bug");
}
}
public XZOutputStream(Stream s)
{
_mInnerStream = s;
var mt = new LzmaMT()
{
flags = 0,
block_size = 0,
timeout = 0,
preset = Preset,
filters = IntPtr.Zero,
check = LzmaCheck.LzmaCheckCrc64,
threads = (uint)Environment.ProcessorCount
};
if (mt.threads > MaxThreads)
{
mt.threads = MaxThreads;
}
var ret = Native.lzma_stream_encoder_mt(ref _lzmaStream, ref mt);
//var ret = Native.lzma_easy_encoder(ref _lzmaStream, Preset, LzmaCheck.LzmaCheckCrc64);
_inbuf = Marshal.AllocHGlobal(BufSize);
_outbuf = Marshal.AllocHGlobal(BufSize);
_lzmaStream.avail_in = 0;
_lzmaStream.next_out = _outbuf;
_lzmaStream.avail_out = BufSize;
if (ret == LzmaReturn.LzmaOK)
{
return;
}
switch (ret)
{
case LzmaReturn.LzmaMemError:
throw new Exception("Memory allocation failed");
case LzmaReturn.LzmaOptionsError:
throw new Exception("Specified preset is not supported");
case LzmaReturn.LzmaUnsupportedCheck:
throw new Exception("Specified integrity check is not supported");
default:
throw new Exception("Unknown error, possibly a bug");
}
}
public XZOutputStream(Stream s)
{
_mInnerStream = s;
var mt = new LzmaMT()
{
flags = 0,
block_size = 0,
timeout = 0,
preset = Preset,
filters = IntPtr.Zero,
check = LzmaCheck.LzmaCheckCrc64,
threads = (uint)Environment.ProcessorCount
};
if (mt.threads > MaxThreads)
mt.threads = MaxThreads;
var ret = Native.lzma_stream_encoder_mt(ref _lzmaStream, ref mt);
//var ret = Native.lzma_easy_encoder(ref _lzmaStream, Preset, LzmaCheck.LzmaCheckCrc64);
_inbuf = Marshal.AllocHGlobal(BufSize);
_outbuf = Marshal.AllocHGlobal(BufSize);
_lzmaStream.avail_in = 0;
_lzmaStream.next_out = _outbuf;
_lzmaStream.avail_out = BufSize;
if (ret == LzmaReturn.LzmaOK)
return;
switch (ret)
{
case LzmaReturn.LzmaMemError:
throw new Exception("Memory allocation failed");
case LzmaReturn.LzmaOptionsError:
throw new Exception("Specified preset is not supported");
case LzmaReturn.LzmaUnsupportedCheck:
throw new Exception("Specified integrity check is not supported");
default:
throw new Exception("Unknown error, possibly a bug");
}
}
public XZOutputStream(Stream s, int threads, uint preset, bool leaveOpen)
{
_mInnerStream = s;
this.leaveOpen = leaveOpen;
LzmaReturn ret;
if (threads == 1)
{
ret = Native.lzma_easy_encoder(ref _lzmaStream, preset, LzmaCheck.LzmaCheckCrc64);
}
else
{
if (threads <= 0)
{
throw new ArgumentOutOfRangeException(nameof(threads));
}
if (threads > Environment.ProcessorCount)
{
Trace.TraceWarning("{0} threads required, but only {1} processors available", threads, Environment.ProcessorCount);
threads = Environment.ProcessorCount;
}
var mt = new LzmaMT()
{
preset = preset,
check = LzmaCheck.LzmaCheckCrc64,
threads = (uint)threads
};
ret = Native.lzma_stream_encoder_mt(ref _lzmaStream, ref mt);
}
if (ret == LzmaReturn.LzmaOK)
{
_outbuf = new byte[BufSize];
_lzmaStream.avail_out = (UIntPtr)BufSize;
return;
}
GC.SuppressFinalize(this);
throw GetError(ret);
}
internal static extern LzmaReturn lzma_stream_encoder_mt(ref LzmaStream stream, ref LzmaMT mt);
internal static extern LzmaReturn lzma_stream_encoder_mt(ref LzmaStream stream, ref LzmaMT mt);
internal static LzmaReturn lzma_stream_encoder_mt(ref LzmaStream stream, ref LzmaMT mt) => IntPtr.Size > 4 ? X64.lzma_stream_encoder_mt(ref stream, ref mt) : X86.lzma_stream_encoder_mt(ref stream, ref mt);
