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| author | Roland McGrath <roland@gnu.org> | 2004-06-29 00:33:10 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2004-06-29 00:33:10 +0000 |
| commit | e1be0bc5657984906bb6885623d348914e135223 (patch) | |
| tree | 15395d7fa4a4bd574e8f46744a01b56609980d1d /sysdeps/posix/waitid.c | |
| parent | 433006673a9b2ae73803965356db22cc7464e6b9 (diff) | |
| download | glibc-e1be0bc5657984906bb6885623d348914e135223.tar.gz | |
* inet/bug-if1.c: Include <string.h>.
2004-06-19 Roland McGrath <roland@redhat.com>
* sysdeps/posix/waitid.c (do_waitid) [DO_WAITID]: Define function
under this macro name instead.
[NO_DO_WAITID]: Don't define it at all.
(do_waitid) [WNOWAIT, WEXITED]: If these POSIX.1 waitid flag bits are
defined, then return ENOTSUP for combinations of selection bits other
than WEXITED and WEXITED|WSTOPPED, which this version cannot support.
* posix/tst-waitid.c: New file.
* posix/Makefile (tests): Add it.
2004-06-28 Jakub Jelinek <jakub@redhat.com>
Diffstat (limited to 'sysdeps/posix/waitid.c')
| -rw-r--r-- | sysdeps/posix/waitid.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/sysdeps/posix/waitid.c b/sysdeps/posix/waitid.c index e388d173f4..76a3b1d660 100644 --- a/sysdeps/posix/waitid.c +++ b/sysdeps/posix/waitid.c @@ -1,5 +1,5 @@ /* Pseudo implementation of waitid. - Copyright (C) 1997, 1998, 2002, 2003 Free Software Foundation, Inc. + Copyright (C) 1997, 1998, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997. @@ -28,8 +28,15 @@ #include <sysdep-cancel.h> +#ifdef DO_WAITID +# define OUR_WAITID DO_WAITID +#elif !defined NO_DO_WAITID +# define OUR_WAITID do_waitid +#endif + +#ifdef OUR_WAITID static int -do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options) +OUR_WAITID (idtype_t idtype, id_t id, siginfo_t *infop, int options) { pid_t pid, child; int status; @@ -66,6 +73,22 @@ do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options) return -1; } + /* This emulation using waitpid cannot support the waitid modes in which + we do not reap the child, or match only stopped and not dead children. */ + if (0 +#ifdef WNOWAIT + || (options & WNOWAIT) +#endif +#ifdef WEXITED + || ((options & (WEXITED|WSTOPPED|WCONTINUED)) + != (WEXITED | (options & WUNTRACED))) +#endif + ) + { + __set_errno (ENOTSUP); + return -1; + } + /* Note the waitid() is a cancellation point. But since we call waitpid() which itself is a cancellation point we do not have to do anything here. */ @@ -118,6 +141,7 @@ do_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options) return 0; } +#endif int |