#include START(pid, tid, d0, d1, d2, d3) { check(pid == 0 || pid == 1, "illegal pid for init"); if (pid == 0) { printf("creating pid 2\n"); id_t id1 = sys_fork(NULL); check(id1 == 2, "unexpected pid?\n"); printf("creating pid 3\n"); id_t id2 = sys_fork(NULL); check(id2 == 3, "unexpected pid?\n"); struct sys_ret r = sys_ipc_req4(2, 1, 2, 3, 4); check(r.s == 0, "failed request?\n"); check(r.id == 2, "wrong responder?\n"); check(r.a0 == 1, "wrong a0?\n"); check(r.a1 == 2, "wrong a1?\n"); check(r.a2 == 3, "wrong a2?\n"); check(r.a3 == 4, "wrong a3?\n"); } else if (pid == 1 && d0 == 1) { printf("pid 2 caught ipc req\n"); check(pid == 1, "illegal pid source\n"); check(tid == 1, "illegal tid source\n"); check(d0 == 1, "illegal d0\n"); check(d1 == 2, "illegal d1\n"); check(d2 == 3, "illegal d2\n"); check(d3 == 4, "illegal d3\n"); printf("pid 2 forwarding\n"); struct sys_ret r = sys_ipc_fwd4(3, 5, 6, 7, 8); check(r.s == 0, "failed request?\n"); check(r.id == 3, "wrong responder?\n"); check(r.a0 == 5, "wrong a0?\n"); check(r.a1 == 6, "wrong a1?\n"); check(r.a2 == 7, "wrong a2?\n"); check(r.a3 == 8, "wrong a3?\n"); printf("pid 2 responding\n"); sys_ipc_resp4(1, 2, 3, 4); fail("pid 2 ipc_resp failed\n"); } else if (pid == 1 && d0 == 5) { printf("pid 3 caught ipc fwd\n"); check(pid == 1, "illegal pid source\n"); check(tid == 1, "illegal tid source\n"); check(d0 == 5, "illegal d0\n"); check(d1 == 6, "illegal d1\n"); check(d2 == 7, "illegal d2\n"); check(d3 == 8, "illegal d3\n"); printf("pid 3 responding\n"); sys_ipc_resp4(5, 6, 7, 8); fail("pid 3 ipc_resp failed\n"); } else { fail("weird pid: %ld\n", pid); } ok(); }