diff options
author | Ulrich Drepper <drepper@redhat.com> | 1997-12-14 22:24:57 +0000 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 1997-12-14 22:24:57 +0000 |
commit | bd355af04fc1df69d4ebb6733be170b9baf0dfb5 (patch) | |
tree | 7c003a29de4031db7de6ddd8e86c43bd746891a0 /sysdeps/posix/waitid.c | |
parent | afe93c0bb33ca7f45b9b60c30067e7b84827e900 (diff) | |
download | glibc-bd355af04fc1df69d4ebb6733be170b9baf0dfb5.tar glibc-bd355af04fc1df69d4ebb6733be170b9baf0dfb5.tar.gz glibc-bd355af04fc1df69d4ebb6733be170b9baf0dfb5.tar.bz2 glibc-bd355af04fc1df69d4ebb6733be170b9baf0dfb5.zip |
Update.cvs/libc-ud-971214
1997-12-14 21:33 Ulrich Drepper <drepper@cygnus.com>
* version.h (VERSION): Bump to 2.0.91.
* db2/makedb.c (process_input): Fix typo in message.
* sunrpc/rpcinfo.c (pmapdump): Unify messages.
* elf/dynamic-link.h: Pretty print.
* elf/rtld.c: Allow multiple preloading of a shared object.
* include/limits.h: Prevent multiple inclusion.
* malloc/Makefile (headers): Add mcheck.h.
(distribute): Remove it here.
* malloc/mcheck.h: Pretty print.
* malloc/mtrace.c (mallenv): Make `const'.
* malloc/mtrace.pl: Don't print table head for memory leaks if there
are none.
* manual/memory.texi: Update descriptor of malloc hooks.
* posix/Makefile (routines): Add waitid.
* posix/sys/types.h [__USE_SVID || __USE_POSIX]: Define id_t based
on __id_t.
* posix/sys/wait.h: Define idtype_t type.
Add prototype for waitid.
* signal/signal.h: Move definition of sigval_t to <bits/siginfo.h>.
* sysdeps/generic/waitid.c: Stub for waitid.
* sysdeps/generic/bits/siginfo.h: Define sigval_t. Arrange to work
the __need_siginfo_t defined.
* sysdeps/unix/sysv/linux/bits/siginfo: Likewise.
* sysdeps/generic/bits/types.h: Define __id_t.
Correct definition of __FDMASK.
* sysdeps/unix/sysv/linux/alpha/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Likewise.
* sysdeps/posix/waitid.c: New file.
Provided by Zack Weinberg.
* rt/aio_misc.c: Rename __aio_free_req to __aio_free_request.
* sysdeps/alpha/dl-machine.h (ELF_MACHINE_RUNTIME_TRAMPOLINE):
Add missing parameters.
* sysdeps/generic/dl-sysdep.c: Don't call __libc_init_secure.
* sysdeps/generic/enbl-secure.c: Don't define __libc_uid.
* sysdeps/unix/sysv/linux/init-first.c: Define __libc_uid.
* sysdeps/unix/sysv/linux/sigqueue.c: Make sure __libc_uid is
initialized.
* sysdeps/i386/dl-machine.h: Little cleanup.
* sysdeps/i386/fpu/bits/mathinline.h: Use __signbit* inline functions.
(__finite): Mark function as const.
Add inline code for __ieee754_atan2.
* sysdeps/libm-ieee754/s_cacoshf.c: Add alternate implementation
(but don't use it now).
* sysdeps/libm-ieee754/s_catan.c: Use __ieee754_atan2 instead of
__atan.
* sysdeps/libm-ieee754/s_catanf.c: Likewise.
* sysdeps/libm-ieee754/s_catanl.c: Likewise.
* sysdeps/libm-ieee754/s_catanh.c: Likewise. Correct sign of
real part.
* sysdeps/libm-ieee754/s_catanhf.c: Likewise.
* sysdeps/libm-ieee754/s_catanhl.c: Likewise.
* sysdeps/libm-ieee754/s_clog10.c: Use factor to correct
__ieee754_atan2 to base 10.
* sysdeps/libm-ieee754/s_clog10f.c: Likewise.
* sysdeps/libm-ieee754/s_clog10l.c: Likewise.
* sysdeps/unix/sysv/linux/alpha/kernel_sigaction.h: Define as
old_kernel_sigaction.
* sysdeps/unix/sysv/linux/net/if_slip.h: Pretty print.
* wctype/Makefile (routines): Add wctype_l.
* wctype/wctype.h: Add declaration of __wctype_l.
* wctype/wctype_l.c: New file.
1997-12-10 00:38 Ulrich Drepper <drepper@cygnus.com>
* locale/C-ctype.c: Correct data for isw* functions.
* locale/programs/ld-ctype.c: Write 32bit char classes in correct
byte order.
* wctype/test_wctype.c: Add test for isw* functions.
* wctype/wctype.c: Return value with expected byte order.
* sysdeps/generic/_G_config.h: Define _G_HAVE_IO_FILE_OPEN.
* sysdeps/unix/sysv/linux/_G_config.h: Likewise.
Diffstat (limited to 'sysdeps/posix/waitid.c')
-rw-r--r-- | sysdeps/posix/waitid.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/sysdeps/posix/waitid.c b/sysdeps/posix/waitid.c new file mode 100644 index 0000000000..a36883a8d2 --- /dev/null +++ b/sysdeps/posix/waitid.c @@ -0,0 +1,118 @@ +/* Pseudo implementation of waitid. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Zack Weinberg <zack@rabi.phys.columbia.edu>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <errno.h> +#include <signal.h> +#include <sys/wait.h> +#include <sys/types.h> + +#include <assert.h> + +int +waitid (idtype, id, infop, options) + idtype_t idtype; + id_t id; + siginfo_t *infop; + int options; +{ + pid_t pid, child; + int status; + + switch (idtype) + { + case P_PID: + if(id <= 0) + goto invalid; + pid = (pid_t) id; + break; + case P_PGID: + if (id < 0 || id == 1) + goto invalid; + pid = (pid_t) -id; + break; + case P_ALL: + pid = -1; + break; + default: + invalid: + __set_errno (EINVAL); + return -1; + } + + /* Technically we're supposed to return EFAULT if infop is bogus, + but that would involve mucking with signals, which is + too much hassle. User will have to deal with SIGSEGV/SIGBUS. + We just check for a null pointer. */ + + if (infop == NULL) + { + __set_errno (EFAULT); + return -1; + } + + child = waitpid (pid, &status, options); + + if (child == -1) + /* `waitpid' set `errno' for us. */ + return -1; + + if (child == 0) + { + /* The WHOHANG bit in OPTIONS is set and there are children available + but none has a status for us. The XPG docs do not mention this + case so we clear the `siginfo_t' struct and return succesfully. */ + infop->si_signo = 0; + infop->si_code = 0; + return 0; + } + + /* Decode the status field and set infop members... */ + infop->si_signo = SIGCHLD; + infop->si_pid = child; + infop->si_errno = 0; + + if (WIFEXITED (status)) + { + infop->si_code = CLD_EXITED; + infop->si_status = WEXITSTATUS (status); + } + else if (WIFSIGNALED (status)) + { + infop->si_code = WCOREDUMP (status) ? CLD_DUMPED : CLD_KILLED; + infop->si_status = WTERMSIG (status); + } + else if (WIFSTOPPED (status)) + { + infop->si_code = CLD_STOPPED; + infop->si_status = WSTOPSIG (status); + } +#ifdef WIFCONTINUED + else if (WIFCONTINUED (status)) + { + infop->si_code = CLD_CONTINUED; + infop->si_status = SIGCONT; + } +#endif + else + /* Can't happen. */ + assert (! "What?"); + + return 0; +} |