/// <summary>
/// Сжатие
/// </summary>
/// <param name="pDataStream"></param>
/// <param name="outBufStream"></param>
/// <returns></returns>
public static bool Deflate(MemoryTributary pDataStream, out MemoryTributary outBufStream)
{
bool result = true;
int DataSize = (int)pDataStream.Length;
outBufStream = new MemoryTributary();
pDataStream.Position = 0;
try
{
MemoryTributary srcMemStream = pDataStream;
{
using (MemoryTributary compressedMemStream = new MemoryTributary())
{
using (System.IO.Compression.DeflateStream strmDef = new System.IO.Compression.DeflateStream(compressedMemStream, System.IO.Compression.CompressionMode.Compress))
{
srcMemStream.CopyTo(strmDef);
}
outBufStream = compressedMemStream;
}
}
}
catch (Exception ex)
{
outBufStream = pDataStream;
result = false;
}
return(result);
}
public bool Save_supplier_configs(UInt32 numcon, String filename)
{
FileStream _fs = null;
Container_file f;
TableFile tf;
if (numcon >= Supplier_configs.Capacity)
{
return(false);
}
tf = Supplier_configs[(int)numcon].File;
f = new Container_file(tf, tf.Name);
if (!f.open())
{
//f = null;
return(false);
}
try
{
_fs = new FileStream(filename, FileMode.OpenOrCreate);
}
catch
{
return(false);
}
MemoryTributary out_fs = new MemoryTributary();
try
{
Inflate((MemoryTributary)f.Stream, out out_fs);
out_fs.CopyTo(_fs);
}
catch
{
/*
* msreg_m.AddError("Ошибка распаковки файла конфигурации поставщика",
* "Имя файла", _filename);
*/
_fs.Dispose();;
return(false);
}
_fs.Dispose();
return(true);
}
public bool open()
{
const int MAX_PATH = 260;
Stream ts;
string tn = "";
char[] tempfile = new char[MAX_PATH];
int i;
V8Table t;
//table_blob_file addr; // TODO: возможно это должен быть МАССИВ !!!!!!!!!!!!!!!!!!!!!!!!
table_blob_file[] addr; // TODO: возможно это должен быть МАССИВ !!!!!!!!!!!!!!!!!!!!!!!!
uint maxpartno;
if (stream != null)
{
stream.Seek(0, SeekOrigin.Begin);
return(true);
}
t = file.T;
addr = file.addr;
maxpartno = file.maxpartno;
if (maxpartno > 0)
{
tn = Path.GetTempFileName();
stream = new FileStream(tn, FileMode.CreateNew);
fname = tn;
}
else
{
stream = new MemoryStream();
}
if (packed == table_file_packed.unknown)
{
packed = isPacked() ? table_file_packed.yes : table_file_packed.no;
}
if (rstream != null)
{
if (packed == table_file_packed.yes)
{
ts = rstream;
}
else
{
stream = rstream;
stream.Seek(0, SeekOrigin.Begin);
return(true);
}
}
else
{
if (packed == table_file_packed.yes)
{
if (maxpartno > 0)
{
//GetTempFileName(temppath, L"awa", 0, tempfile);
//tn = tempfile;
//ts = new TFileStream(tn, fmCreate);
tn = Path.GetTempFileName();
ts = new FileStream(tn, FileMode.CreateNew);
fname = tn;
}
else
{
ts = new MemoryStream();
}
}
else
{
ts = stream;
}
for (i = 0; i <= maxpartno; ++i)
{
t.ReadBlob(ts, addr[i].Blob_start, addr[i].Blob_length, false);
}
}
if (packed == table_file_packed.yes)
{
ts.Seek(0, SeekOrigin.Begin);
MemoryTributary out_stream = new MemoryTributary();
Inflate((MemoryTributary)ts, out out_stream);
out_stream.CopyTo(stream);
if (rstream is null)
{
ts.Dispose();
System.IO.File.Delete(tn);
}
}
stream.Seek(0, SeekOrigin.Begin);
return(true);
}
