1 dnl Copyright 2012 The Kyua Authors.
2 dnl All rights reserved.
4 dnl Redistribution and use in source and binary forms, with or without
5 dnl modification, are permitted provided that the following conditions are
8 dnl * Redistributions of source code must retain the above copyright
9 dnl notice, this list of conditions and the following disclaimer.
10 dnl * Redistributions in binary form must reproduce the above copyright
11 dnl notice, this list of conditions and the following disclaimer in the
12 dnl documentation and/or other materials provided with the distribution.
13 dnl * Neither the name of Google Inc. nor the names of its contributors
14 dnl may be used to endorse or promote products derived from this software
15 dnl without specific prior written permission.
17 dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 dnl A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 dnl OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 dnl SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 dnl LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 dnl DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 dnl THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 dnl OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 dnl \file m4/memory.m4
31 dnl Macros to configure the utils::memory module.
34 dnl Entry point to detect all features needed by utils::memory.
36 dnl This looks for a mechanism to check the available physical memory in the
38 AC_DEFUN([KYUA_MEMORY], [
42 _KYUA_SYSCTLBYNAME([have_sysctlbyname=yes], [have_sysctlbyname=no])
43 if test "${have_sysctlbyname}" = yes; then
44 _KYUA_SYSCTL_MIB([hw.usermem64], [hw_usermem64],
45 [memory_mib="hw.usermem64"], [])
46 if test "${memory_mib}" = none; then
47 _KYUA_SYSCTL_MIB([hw.usermem], [hw_usermem],
48 [memory_mib="hw.usermem"], [])
50 if test "${memory_mib}" != none; then
51 memory_query=sysctlbyname
55 if test "${memory_query}" = unknown; then
56 AC_MSG_WARN([Don't know how to query the amount of physical memory])
57 AC_MSG_WARN([The test case's require.memory property will not work])
60 AC_DEFINE_UNQUOTED([MEMORY_QUERY_TYPE], ["${memory_query}"],
61 [Define to the memory query type])
62 AC_DEFINE_UNQUOTED([MEMORY_QUERY_SYSCTL_MIB], ["${memory_mib}"],
63 [Define to the name of the sysctl MIB])
67 dnl Detects the availability of the sysctlbyname(3) function.
69 dnl \param action_if_found Code to run if the function is found.
70 dnl \param action_if_not_found Code to run if the function is not found.
71 AC_DEFUN([_KYUA_SYSCTLBYNAME], [
72 AC_CHECK_HEADERS([sys/types.h sys/sysctl.h]) dnl Darwin 11.2
73 AC_CHECK_HEADERS([sys/param.h sys/sysctl.h]) dnl NetBSD 6.0
75 AC_CHECK_FUNCS([sysctlbyname], [$1], [$2])
79 dnl Looks for a specific sysctl MIB.
81 dnl \pre sysctlbyname(3) must be present in the system.
83 dnl \param mib_name The name of the MIB to check for.
84 dnl \param flat_mib_name The name of the MIB as a shell variable, for use in
85 dnl cache variable names. This should be automatically computed with
86 dnl m4_bpatsubst or similar, but my inability to make the code readable
87 dnl made me add this parameter instead.
88 dnl \param action_if_found Code to run if the MIB is found.
89 dnl \param action_if_not_found Code to run if the MIB is not found.
90 AC_DEFUN([_KYUA_SYSCTL_MIB], [
92 [if the $1 sysctl MIB exists],
93 [kyua_cv_sysctl_$2], [
94 AC_RUN_IFELSE([AC_LANG_PROGRAM([
95 #if defined(HAVE_SYS_TYPES_H)
96 # include <sys/types.h>
98 #if defined(HAVE_SYS_PARAM_H)
99 # include <sys/param.h>
101 #if defined(HAVE_SYS_SYSCTL_H)
102 # include <sys/sysctl.h>
108 size_t memory_length = sizeof(memory);
109 if (sysctlbyname("$1", &memory, &memory_length, NULL, 0) == -1)
114 [kyua_cv_sysctl_$2=yes],
115 [kyua_cv_sysctl_$2=no])
117 if test "${kyua_cv_sysctl_$2}" = yes; then
118 m4_default([$3], [:])
120 m4_default([$4], [:])