usr/src/lib/libc/port/sys/tasksys.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 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #pragma weak _settaskid = settaskid
  30 #pragma weak _gettaskid = gettaskid
  31 #pragma weak _getprojid = getprojid
  32
  33 #include "lint.h"
  34 #include <sys/types.h>
  35 #include <sys/syscall.h>
  36 #include <sys/task.h>
  37 #include <errno.h>
  38 #include <project.h>
  39
  40 taskid_t
  41 settaskid(projid_t project, uint_t flags)
  42 {
  43         taskid_t newtaskid;
  44
  45         while ((newtaskid = syscall(SYS_tasksys, 0, project, flags, NULL, 0))
  46             == -1 && errno == EINTR)
  47                 continue;
  48
  49         return (newtaskid);
  50 }
  51
  52 taskid_t
  53 gettaskid(void)
  54 {
  55         return ((taskid_t)syscall(SYS_tasksys, 1, 0, 0, NULL, 0));
  56 }
  57
  58 projid_t
  59 getprojid(void)
  60 {
  61         return ((projid_t)syscall(SYS_tasksys, 2, 0, 0, NULL, 0));
  62 }