mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-18 02:50:09 +00:00
3a2832a07f
* sysdeps/mach/hurd/setpriority.c [POLICY_TIMESHARE_BASE_COUNT]: Use task_policy in place of task_priority. * sysdeps/generic/bits/mman.h (MS_ASYNC, MS_SYNC, MS_INVALIDATE): New macros. * sysdeps/mach/msync.c: New file. * sysdeps/mach/powerpc/syscall.S: New file. * mach/msg.c [MACH_MSG_OVERWRITE] (__mach_msg_trap, __mach_msg_overwrite): New functions. * mach/Versions (libc: GLIBC_2.0): Add mach_msg_overwrite and __ name. * sysdeps/mach/configure.in: Check for clock.defs to put into mach_interface_list. * sysdeps/mach/configure: Regenerated. * mach/Makefile (mach-machine): New variable, set from $(base-machine). ($(objpfx)mach-syscalls.mk): Use it in place of $(base-machine). ($(mach-syscalls:%=$(objpfx)%.S) static pattern rule): Use <mach/machine/syscall_sw.h> instead of <sysdep.h>. (mach-shortcuts): Add device_read_overwrite_request, device_read_overwrite, vm_read_overwrite, thread_switch. * configure.in (base_machine): Set to $machine by default. * configure: Regenerated.
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
/* Copyright (C) 1994,95,97,2000,02 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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <hurd.h>
|
|
#include <hurd/resource.h>
|
|
|
|
/* Set the priority of all processes specified by WHICH and WHO
|
|
to PRIO. Returns 0 on success, -1 on errors. */
|
|
int
|
|
setpriority (enum __priority_which which, id_t who, int prio)
|
|
{
|
|
error_t err;
|
|
error_t pidloser, priloser;
|
|
unsigned int npids, ntasks, nwin, nperm, nacces;
|
|
|
|
error_t setonepriority (pid_t pid, struct procinfo *pi)
|
|
{
|
|
task_t task;
|
|
error_t piderr = __USEPORT (PROC, __proc_pid2task (port, pid, &task));
|
|
if (piderr == EPERM)
|
|
++nperm;
|
|
if (piderr != ESRCH)
|
|
{
|
|
++npids;
|
|
if (piderr && piderr != EPERM)
|
|
pidloser = piderr;
|
|
}
|
|
if (! piderr)
|
|
{
|
|
error_t prierr;
|
|
++ntasks;
|
|
#ifdef POLICY_TIMESHARE_BASE_COUNT
|
|
{
|
|
/* XXX This assumes timeshare policy. */
|
|
struct policy_timeshare_base base
|
|
= { NICE_TO_MACH_PRIORITY (prio) };
|
|
prierr = __task_policy (task, POLICY_TIMESHARE,
|
|
(policy_base_t) &base,
|
|
POLICY_TIMESHARE_BASE_COUNT,
|
|
0, 1);
|
|
}
|
|
#else
|
|
prierr = __task_priority (task, NICE_TO_MACH_PRIORITY (prio), 1);
|
|
#endif
|
|
__mach_port_deallocate (__mach_task_self (), task);
|
|
switch (prierr)
|
|
{
|
|
case KERN_FAILURE:
|
|
++nacces;
|
|
break;
|
|
case KERN_SUCCESS:
|
|
++nwin;
|
|
break;
|
|
case KERN_INVALID_ARGUMENT: /* Task died. */
|
|
--npids;
|
|
--ntasks;
|
|
break;
|
|
default:
|
|
priloser = prierr;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
npids = ntasks = nwin = nperm = nacces = 0;
|
|
pidloser = priloser = 0;
|
|
err = _hurd_priority_which_map (which, who, setonepriority, 0);
|
|
|
|
if (!err && npids == 0)
|
|
/* No error, but no pids found. */
|
|
err = ESRCH;
|
|
else if (nperm == npids)
|
|
/* Got EPERM from proc_task2pid for every process. */
|
|
err = EPERM;
|
|
else if (nacces == ntasks)
|
|
/* Got KERN_FAILURE from task_priority for every task. */
|
|
err = EACCES;
|
|
else if (nwin == 0)
|
|
err = pidloser ?: priloser;
|
|
|
|
return err ? __hurd_fail (err) : 0;
|
|
}
|