Lines Matching defs:rval
57 int rval;
66 rval = pipe(to_parent);
67 if (rval == -1) {
71 rval = pipe(to_child);
72 if (rval == -1) {
100 int rval;
108 rval = send_receive(read_pipe, write_pipe, 'a', &reply);
109 if (rval) {
110 return rval;
139 int rval;
142 rval = send_receive(read_pipe, write_pipe, 0, &reply);
143 if (rval) {
144 return rval;
155 rval = send_receive(read_pipe, write_pipe, 'b', NULL);