usr/src/lib/libproc/common/pr_pbind.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #include <sys/types.h>
  27 #include <sys/procset.h>
  28 #include <sys/processor.h>
  29 #include <sys/pset.h>
  30 #include <stdlib.h>
  31 #include <unistd.h>
  32 #include <errno.h>
  33 #include "libproc.h"
  34
  35 int
  36 pr_processor_bind(struct ps_prochandle *Pr, idtype_t idtype, id_t id,
  37     int processorid, int *obind)
  38 {
  39         sysret_t rval;                  /* return value */
  40         argdes_t argd[4];               /* arg descriptors */
  41         argdes_t *adp = &argd[0];       /* first argument */
  42         int error;
  43
  44         if (Pr == NULL)         /* no subject process */
  45                 return (processor_bind(idtype, id, processorid, obind));
  46
  47         adp->arg_value = idtype;        /* idtype */
  48         adp->arg_object = NULL;
  49         adp->arg_type = AT_BYVAL;
  50         adp->arg_inout = AI_INPUT;
  51         adp->arg_size = 0;
  52         adp++;
  53
  54         adp->arg_value = id;            /* id */
  55         adp->arg_object = NULL;
  56         adp->arg_type = AT_BYVAL;
  57         adp->arg_inout = AI_INPUT;
  58         adp->arg_size = 0;
  59         adp++;
  60
  61         adp->arg_value = processorid;   /* processorid */
  62         adp->arg_object = NULL;
  63         adp->arg_type = AT_BYVAL;
  64         adp->arg_inout = AI_INPUT;
  65         adp->arg_size = 0;
  66         adp++;
  67
  68         if (obind == NULL) {
  69                 adp->arg_value = 0;     /* obind */
  70                 adp->arg_object = NULL;
  71                 adp->arg_type = AT_BYVAL;
  72                 adp->arg_inout = AI_INPUT;
  73                 adp->arg_size = 0;
  74         } else {
  75                 adp->arg_value = 0;
  76                 adp->arg_object = obind;
  77                 adp->arg_type = AT_BYREF;
  78                 adp->arg_inout = AI_INOUT;
  79                 adp->arg_size = sizeof (int);
  80         }
  81
  82         error = Psyscall(Pr, &rval, SYS_processor_bind, 4, &argd[0]);
  83
  84         if (error) {
  85                 errno = (error < 0)? ENOSYS : error;
  86                 return (-1);
  87         }
  88         return (rval.sys_rval1);
  89 }