void SetCloseExec(int Fd,bool Close);
void SetNonBlock(int Fd,bool Block);
bool WaitFd(int Fd,bool write = false,unsigned long timeout = 0);
-pid_t ExecFork();
+pid_t ExecFork(int dontCloseThisFd=-1);
bool ExecWait(pid_t Pid,const char *Name,bool Reap = false);
// File string manipulators