lib/libspl/include/sys/cmn_err.h

   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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or https://opensource.org/licenses/CDDL-1.0.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #ifndef _LIBSPL_SYS_CMN_ERR_H
  28 #define _LIBSPL_SYS_CMN_ERR_H
  29
  30 #include <atomic.h>
  31
  32 #define cmn_err_once(ce, ...)                           \
  33 do {                                                    \
  34         static volatile uint32_t printed = 0;           \
  35         if (atomic_cas_32(&printed, 0, 1) == 0) {       \
  36                 cmn_err(ce, __VA_ARGS__);               \
  37         }                                               \
  38 } while (0)
  39
  40 #define vcmn_err_once(ce, fmt, ap)                      \
  41 do {                                                    \
  42         static volatile uint32_t printed = 0;           \
  43         if (atomic_cas_32(&printed, 0, 1) == 0) {       \
  44                 vcmn_err(ce, fmt, ap);                  \
  45         }                                               \
  46 } while (0)
  47
  48 #define zcmn_err_once(zone, ce, ...)                    \
  49 do {                                                    \
  50         static volatile uint32_t printed = 0;           \
  51         if (atomic_cas_32(&printed, 0, 1) == 0) {       \
  52                 zcmn_err(zone, ce, __VA_ARGS__);        \
  53         }                                               \
  54 } while (0)
  55
  56 #define vzcmn_err_once(zone, ce, fmt, ap)               \
  57 do {                                                    \
  58         static volatile uint32_t printed = 0;           \
  59         if (atomic_cas_32(&printed, 0, 1) == 0) {       \
  60                 vzcmn_err(zone, ce, fmt, ap);           \
  61         }                                               \
  62 } while (0)
  63
  64 #endif