Dear,
they are  away to add this c interface from sys/signalfd.h :
extern (System){
    struct signalfd_siginfo{
        uint    ssi_signo;
        int     ssi_errno;
        int     ssi_code;
        uint    ssi_pid;
        uint    ssi_uid;
        int     ssi_fd;
        uint    ssi_tid;
        uint    ssi_band;
        uint    ssi_overrun;
        uint    ssi_trapno;
        int     ssi_status;
        int     ssi_int;
        ulong   ssi_ptr;
        ulong   ssi_utime;
        ulong   ssi_stime;
        ulong   ssi_addr;
        short   __pad[48];
    }
    /* Flags for signalfd.  */
    enum SFD_CLOEXEC  = octal!2000000;
    enum SFD_NONBLOCK = octal!4000;
    extern int signalfd (int __fd, const sigset_t * __mask, int __flags);
}



thanks