glibc/sysdeps/mach/hurd/getpriority.c
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

86 lines
2.8 KiB
C

/* Copyright (C) 1994-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <limits.h>
#include <hurd.h>
#include <hurd/resource.h>
/* Return the highest priority of any process specified by WHICH and WHO
(see <sys/resource.h>); if WHO is zero, the current process, process group,
or user (as specified by WHO) is used. A lower priority number means higher
priority. Priorities range from PRIO_MIN to PRIO_MAX. */
int
__getpriority (enum __priority_which which, id_t who)
{
error_t err, onerr;
int maxpri = INT_MIN;
struct procinfo *pip; /* Just for sizeof. */
int pibuf[sizeof *pip + 2 * sizeof (pip->threadinfos[0])], *pi = pibuf;
size_t pisize = sizeof pibuf / sizeof pibuf[0];
error_t getonepriority (pid_t pid, struct procinfo *pip)
{
if (pip)
onerr = 0;
else
{
int *oldpi = pi;
size_t oldpisize = pisize;
char *tw = 0;
size_t twsz = 0;
int flags = PI_FETCH_TASKINFO;
onerr = __USEPORT (PROC, __proc_getprocinfo (port, pid, &flags,
&pi, &pisize,
&tw, &twsz));
if (twsz)
__vm_deallocate (__mach_task_self (), (vm_address_t) tw, twsz);
if (pi != oldpi && oldpi != pibuf)
/* Old buffer from last call was not reused; free it. */
__vm_deallocate (__mach_task_self (),
(vm_address_t) oldpi, oldpisize * sizeof pi[0]);
pip = (struct procinfo *) pi;
}
#ifdef TASK_SCHED_TIMESHARE_INFO
if (!onerr && pip->timeshare_base_info.base_priority > maxpri)
maxpri = pip->timeshare_base_info.base_priority;
#else
if (!onerr && pip->taskinfo.base_priority > maxpri)
maxpri = pip->taskinfo.base_priority;
#endif
return 0;
}
onerr = 0;
err = _hurd_priority_which_map (which, who,
getonepriority, PI_FETCH_TASKINFO);
if (pi != pibuf)
__vm_deallocate (__mach_task_self (),
(vm_address_t) pi, pisize * sizeof pi[0]);
if (!err && maxpri == INT_MIN)
/* No error, but no pids found. */
err = onerr ?: ESRCH;
if (err)
return __hurd_fail (err);
return MACH_PRIORITY_TO_NICE (maxpri);
}
libc_hidden_def (__getpriority)
weak_alias (__getpriority, getpriority)