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581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* Implementation of waitid. Hurd version.
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Copyright (C) 1997-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <stddef.h>
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#include <hurd.h>
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#include <hurd/port.h>
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#include <hurd/version.h>
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#include <sysdep-cancel.h>
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int
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__waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
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{
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struct rusage ignored;
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error_t err;
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pid_t pid, child;
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int sigcode;
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int status;
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int cancel_oldtype;
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switch (idtype)
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{
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case P_PID:
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if (id <= 0)
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goto invalid;
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pid = (pid_t) id;
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break;
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case P_PGID:
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if (id < 0 || id == 1)
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goto invalid;
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pid = (pid_t) -id;
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break;
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case P_ALL:
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pid = -1;
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break;
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default:
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invalid:
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__set_errno (EINVAL);
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return -1;
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}
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/* Technically we're supposed to return EFAULT if infop is bogus,
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but that would involve mucking with signals, which is
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too much hassle. User will have to deal with SIGSEGV/SIGBUS.
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We just check for a null pointer. */
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if (infop == NULL)
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{
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__set_errno (EFAULT);
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return -1;
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}
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cancel_oldtype = LIBC_CANCEL_ASYNC();
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#if HURD_INTERFACE_VERSION >= 20201227
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err = __USEPORT_CANCEL (PROC, __proc_waitid (port, pid, options,
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&status, &sigcode,
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&ignored, &child));
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if (err == MIG_BAD_ID || err == EOPNOTSUPP)
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#endif
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err = __USEPORT_CANCEL (PROC, __proc_wait (port, pid, options,
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&status, &sigcode,
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&ignored, &child));
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LIBC_CANCEL_RESET (cancel_oldtype);
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if (err == EAGAIN)
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{
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/* POSIX.1-2008, Technical Corrigendum 1 XSH/TC1-2008/0713 [153] states
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that if waitid returns because WNOHANG was specified and status is
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not available for any process specified by idtype and id, then the
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si_signo and si_pid members of the structure pointed to by infop
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shall be set to zero. */
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infop->si_signo = 0;
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infop->si_code = 0;
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return 0;
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}
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if (err != 0)
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return __hurd_fail (err);
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/* Decode the status field and set infop members... */
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infop->si_signo = SIGCHLD;
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infop->si_pid = child;
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infop->si_errno = 0;
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if (WIFEXITED (status))
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{
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infop->si_code = CLD_EXITED;
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infop->si_status = WEXITSTATUS (status);
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}
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else if (WIFSIGNALED (status))
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{
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infop->si_code = WCOREDUMP (status) ? CLD_DUMPED : CLD_KILLED;
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infop->si_status = WTERMSIG (status);
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}
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else if (WIFSTOPPED (status))
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{
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infop->si_code = CLD_STOPPED;
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infop->si_status = WSTOPSIG (status);
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}
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else if (WIFCONTINUED (status))
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{
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infop->si_code = CLD_CONTINUED;
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infop->si_status = SIGCONT;
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}
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return 0;
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}
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weak_alias (__waitid, waitid)
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strong_alias (__waitid, __libc_waitid)
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