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1999-09-19 Roland McGrath <roland@baalperazim.frob.com> 

* hurd/hurdprio.c (_hurd_priority_which_map): Rearrange the code a bit.
	Use __munmap instead of __vm_deallocate.
This commit is contained in:
Roland McGrath 1999-09-19 05:42:05 +00:00
parent 8a386ec186
commit aefc5849d2
1 changed files with 27 additions and 36 deletions
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63
hurd/hurdprio.c
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@ -17,8 +17,9 @@
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <hurd/resource.h>
#include <hurd.h>
#include <hurd/resource.h>
#include <sys/mman.h>
#include <unistd.h>
error_t
@ -35,64 +36,54 @@ _hurd_priority_which_map (enum __priority_which which, int who,
switch (which)
{
default:
return EINVAL;
case PRIO_PROCESS:
npids = 1;
pids[0] = who ?: getpid (); /* XXX function could special-case self? */
err = 0;
err = (*function) (who ?: getpid (), 0); /* XXX special-case self? */
break;
case PRIO_PGRP:
err = __USEPORT (PROC, __proc_getpgrppids (port, who, &pids, &npids));
for (i = 0; !err && i < npids; ++i)
err = (*function) (pids[i], 0);
break;
case PRIO_USER:
if (who == 0)
who = geteuid ();
err = __USEPORT (PROC, __proc_getallpids (port, &pids, &npids));
break;
default:
return EINVAL;
}
for (i = 0; !err && i < npids; ++i)
{
if (which == PRIO_USER)
for (i = 0; !err && i < npids; ++i)
{
/* Get procinfo to check the owner. */
int *oldpi = pi;
mach_msg_type_number_t oldpisize = pisize;
char *tw = 0;
size_t twsz = 0;
if (err = __USEPORT (PROC, __proc_getprocinfo (port, pids[i],
&pi_flags,
&pi, &pisize,
&tw, &twsz)))
continue;
if (twsz)
/* Gratuitous. */
__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]);
err = __USEPORT (PROC, __proc_getprocinfo (port, pids[i],
&pi_flags,
&pi, &pisize,
&tw, &twsz));
if (!err)
{
if (twsz) /* Gratuitous. */
__munmap (tw, twsz);
if (pi != oldpi && oldpi != pibuf)
/* Old buffer from last call was not reused; free it. */
__munmap (oldpi, oldpisize * sizeof pi[0]);
pip = (struct procinfo *) pi;
if (pip->owner != (uid_t) who)
continue;
pip = (struct procinfo *) pi;
if (pip->owner == (uid_t) who)
err = (*function) (pids[i], pip);
}
}
else
pip = NULL;
err = (*function) (pids[i], pip);
break;
}
if (pids != pidbuf)
__vm_deallocate (__mach_task_self (),
(vm_address_t) pids, npids * sizeof pids[0]);
__munmap (pids, npids * sizeof pids[0]);
if (pi != pibuf)
__vm_deallocate (__mach_task_self (),
(vm_address_t) pi, pisize * sizeof pi[0]);
__munmap (pi, pisize * sizeof pi[0]);
return err;
}