P_ALL
if (waitid(P_ALL, -1, &si,
X(P_ALL) X(P_LWPID) X(P_TASKID) X(P_PROJID) X(P_POOLID) X(P_JAILID)
idtype = P_ALL;
idtype = P_ALL;
case P_ALL:
idtype = P_ALL;
ATF_REQUIRE(wait6(P_ALL, 0, &status, WEXITED, NULL,NULL) != -1);
if (waitid(P_ALL, 0, &si, WTRAPPED | WEXITED) == -1) {