#include <string>
+#include <vector>
using std::string;
bool CopyFile(FileFd &From,FileFd &To);
int GetLock(string File,bool Errors = true);
bool FileExists(string File);
+std::vector<string> GetListOfFilesInDir(string const &Dir, string const &Ext,
+ bool const &SortList);
string SafeGetCWD();
void SetCloseExec(int Fd,bool Close);
void SetNonBlock(int Fd,bool Block);