Hello.
Recently I was working with std.zlib and experienced error. After
few hours I realized it was uncompress issue. I've made simple
example that shows the issue:
import std.stdio,
std.zlib,
std.array,
std.file,
std.conv;
void main()
{
createFile();
loadFile();
}
void createFile()
{
auto file = new File("test.txt", "wb");
scope(exit) file.close;
auto cpr = new Compress(9);
string str = "abcdef";
for(int i = 0; i < 500; i++)
{
file.write(cast(string)cpr.compress(str~to!string(i)));
}
file.write(cast(string)cpr.flush);
}
void loadFile()
{
auto file = new File("test.txt", "rb");
scope(exit) file.close;
auto target = new File("test2.txt", "wb");
scope(exit) target.close;
auto ucpr = new UnCompress();
// Making chunk size bigger than file size will (dirty)fix it.
foreach(chunk; file.byChunk(64))
{
target.write(cast(string)ucpr.uncompress(chunk));
}
target.write(cast(string)ucpr.flush);
}
The code creates file with compressed data, then tries to
uncompress it. That's where the issue is.
UnCompress.uncompress(src) works only if the src is complete. If
I pass half of it, I get exception (data error). I don't know how
to fix it except increasing buffer size to incredible high
values(some files may be pretty big).
