/* vi: set sw=4 ts=4: */ /* * Copyright (C) 2007 Erik Andersen <andersen@uclibc.org> * * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ #include <features.h> #if defined __USE_SVID || defined __USE_XOPEN # include <sys/types.h> # include <sys/wait.h> # include <sys/syscall.h> # ifdef __NR_waitid _syscall4(int, waitid, idtype_t, idtype, id_t, id, siginfo_t*, infop, int, options) # else # include <string.h> /* libc_hidden_proto(waitpid) */ int waitid(idtype_t idtype, id_t id, siginfo_t *infop, int options) { switch (idtype) { case P_PID: if (id <= 0) goto invalid; break; case P_PGID: if (id < 0 || id == 1) goto invalid; id = -id; break; case P_ALL: id = -1; break; default: invalid: __set_errno(EINVAL); return -1; } memset(infop, 0, sizeof *infop); infop->si_pid = waitpid(id, &infop->si_status, options # ifdef WEXITED &~ WEXITED # endif ); if (infop->si_pid < 0) return infop->si_pid; return 0; } # endif #endif