/* 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/syscall.h> #include <sys/wait.h> #include <cancel.h> #ifndef __NR_waitid # include <string.h> #endif static int __NC(waitid)(idtype_t idtype, id_t id, siginfo_t *infop, int options) { #ifdef __NR_waitid return INLINE_SYSCALL(waitid, 5, idtype, id, infop, options, NULL); #else 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 = __NC(waitpid)(id, &infop->si_status, options # ifdef WEXITED &~ WEXITED # endif ); if (infop->si_pid < 0) return infop->si_pid; return 0; #endif } CANCELLABLE_SYSCALL(int, waitid, (idtype_t idtype, id_t id, siginfo_t *infop, int options), (idtype, id, infop, options)) #endif