comm              522 src/background.c     int comm[2];                /* control connection stream */
comm              526 src/background.c     if (pipe (comm) == -1)
comm              531 src/background.c         (void) close (comm[0]);
comm              532 src/background.c         (void) close (comm[1]);
comm              542 src/background.c         (void) close (comm[0]);
comm              543 src/background.c         (void) close (comm[1]);
comm              555 src/background.c         (void) close (comm[0]);
comm              556 src/background.c         parent_fd = comm[1];
comm              585 src/background.c         (void) close (comm[1]);
comm              588 src/background.c         register_task_running (ctx, pid, comm[0], back_comm[1], info);