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Allow setting of idle or realtime processing priorities per

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login class.

PR:		6636
Submitted by:	Jason Young <doogie@forbidden-donut.anet-stl.com>
This commit is contained in:
Steve Price 1998-05-25 03:55:23 +00:00
parent a39f52db0f
commit e172f0e587
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=36351
1 changed files with 22 additions and 5 deletions
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27
lib/libutil/login_class.c
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@ -21,7 +21,7 @@
*
* High-level routines relating to use of the user capabilities database
*
* $Id: login_class.c,v 1.5 1997/02/22 15:08:22 peter Exp $
* $Id: login_class.c,v 1.6 1997/05/10 18:55:38 davidn Exp $
*/
#include <stdio.h>
@ -38,6 +38,7 @@
#include <syslog.h>
#include <login_cap.h>
#include <paths.h>
#include <sys/rtprio.h>
#undef UNKNOWN
@ -315,6 +316,7 @@ setusercontext(login_cap_t *lc, const struct passwd *pwd, uid_t uid, unsigned in
quad_t p;
mode_t mymask;
login_cap_t *llc = NULL;
struct rtprio rtp;
if (lc == NULL) {
if (pwd != NULL && (lc = login_getpwclass(pwd)) != NULL)
@ -332,10 +334,25 @@ setusercontext(login_cap_t *lc, const struct passwd *pwd, uid_t uid, unsigned in
if (flags & LOGIN_SETPRIORITY) {
p = login_getcapnum(lc, "priority", LOGIN_DEFPRI, LOGIN_DEFPRI);
p = (p < PRIO_MIN || p > PRIO_MAX) ? LOGIN_DEFPRI : p;
if (setpriority(PRIO_PROCESS, 0, (int)p) != 0)
syslog(LOG_WARNING, "setpriority '%s' (%s): %m",
pwd->pw_name, lc ? lc->lc_class : LOGIN_DEFCLASS);
if(p > PRIO_MAX) {
rtp.type = RTP_PRIO_IDLE;
rtp.prio = p - PRIO_MAX - 1;
p = (rtp.prio > RTP_PRIO_MAX) ? 31 : p;
if(rtprio(RTP_SET, 0, &rtp))
syslog(LOG_WARNING, "rtprio '%s' (%s): %m",
pwd->pw_name, lc ? lc->lc_class : LOGIN_DEFCLASS);
} else if(p < PRIO_MIN) {
rtp.type = RTP_PRIO_REALTIME;
rtp.prio = abs(p - PRIO_MIN + RTP_PRIO_MAX);
p = (rtp.prio > RTP_PRIO_MAX) ? 1 : p;
if(rtprio(RTP_SET, 0, &rtp))
syslog(LOG_WARNING, "rtprio '%s' (%s): %m",
pwd->pw_name, lc ? lc->lc_class : LOGIN_DEFCLASS);
} else {
if (setpriority(PRIO_PROCESS, 0, (int)p) != 0)
syslog(LOG_WARNING, "setpriority '%s' (%s): %m",
pwd->pw_name, lc ? lc->lc_class : LOGIN_DEFCLASS);
}
}
/* Setup the user's group permissions */