comm              521 src/background.c     int comm[2];       // control connection stream
comm              525 src/background.c     if (pipe (comm) == -1)
comm              530 src/background.c         (void) close (comm[0]);
comm              531 src/background.c         (void) close (comm[1]);
comm              541 src/background.c         (void) close (comm[0]);
comm              542 src/background.c         (void) close (comm[1]);
comm              554 src/background.c         (void) close (comm[0]);
comm              555 src/background.c         parent_fd = comm[1];
comm              584 src/background.c         (void) close (comm[1]);
comm              587 src/background.c         register_task_running (ctx, pid, comm[0], back_comm[1], info);