back_comm         522 src/background.c     int back_comm[2];  // back connection
back_comm         528 src/background.c     if (pipe (back_comm) == -1)
back_comm         543 src/background.c         (void) close (back_comm[0]);
back_comm         544 src/background.c         (void) close (back_comm[1]);
back_comm         557 src/background.c         (void) close (back_comm[1]);
back_comm         558 src/background.c         from_parent_fd = back_comm[0];
back_comm         585 src/background.c         (void) close (back_comm[0]);
back_comm         587 src/background.c         register_task_running (ctx, pid, comm[0], back_comm[1], info);