1e9dc0393c
* stdio/vfscanf.c (%n): Use READ_IN - 1, so as not to count the read-ahead character. * hurd/dtable.c, hurd/getdport.c, hurd/hurd.h, hurd/hurdexec.c, hurd/hurdinit.c, hurd/hurdprio.c, hurd/hurdsock.c, hurd/ports-get.c, hurd/ports-set.c, hurd/setauth.c, hurd/setuids.c, sysdeps/mach/hurd/i386/trampoline.c: Get anal with unsigned to pacify compiler.
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* Support code for dealing with priorities in the Hurd.
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Copyright (C) 1994 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <hurd/resource.h>
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#include <hurd.h>
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error_t
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_hurd_priority_which_map (enum __priority_which which, int who,
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error_t (*function) (pid_t, struct procinfo *))
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{
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mach_msg_type_number_t npids = 64, i;
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pid_t pidbuf[npids], *pids;
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error_t err;
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struct procinfo *pip;
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int pibuf[sizeof *pip + 5 * sizeof (pip->threadinfos[0])], *pi = pibuf;
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mach_msg_type_number_t pisize = sizeof (pibuf) / sizeof (int);
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switch (which)
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{
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case PRIO_PROCESS:
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npids = 1;
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pids[0] = who;
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err = 0;
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break;
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case PRIO_PGRP:
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err = __USEPORT (PROC, __proc_getpgrppids (port, who, &pids, &npids));
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break;
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case PRIO_USER:
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err = __USEPORT (PROC, __proc_getallpids (port, &pids, &npids));
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break;
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default:
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return EINVAL;
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}
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for (i = 0; !err && i < npids; ++i)
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{
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if (which == PRIO_USER)
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{
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/* Get procinfo to check the owner. */
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int *oldpi = pi;
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mach_msg_type_number_t oldpisize = pisize;
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if (err = __USEPORT (PROC, __proc_getprocinfo (port, pids[i],
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&pi, &pisize)))
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continue;
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if (pi != oldpi && oldpi != pibuf)
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/* Old buffer from last call was not reused; free it. */
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__vm_deallocate (__mach_task_self (),
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(vm_address_t) oldpi, oldpisize * sizeof pi[0]);
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pip = (struct procinfo *) pi;
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if (pip->owner != (uid_t) who)
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continue;
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}
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else
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pip = NULL;
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err = (*function) (pids[i], pip);
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}
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if (pids != pidbuf)
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__vm_deallocate (__mach_task_self (),
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(vm_address_t) pids, npids * sizeof pids[0]);
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if (pi != pibuf)
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__vm_deallocate (__mach_task_self (),
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(vm_address_t) pi, pisize * sizeof pi[0]);
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return err;
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}
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