1dnl Copyright 2012 The Kyua Authors. 2dnl All rights reserved. 3dnl 4dnl Redistribution and use in source and binary forms, with or without 5dnl modification, are permitted provided that the following conditions are 6dnl met: 7dnl 8dnl * Redistributions of source code must retain the above copyright 9dnl notice, this list of conditions and the following disclaimer. 10dnl * Redistributions in binary form must reproduce the above copyright 11dnl notice, this list of conditions and the following disclaimer in the 12dnl documentation and/or other materials provided with the distribution. 13dnl * Neither the name of Google Inc. nor the names of its contributors 14dnl may be used to endorse or promote products derived from this software 15dnl without specific prior written permission. 16dnl 17dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20dnl A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21dnl OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22dnl SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23dnl LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24dnl DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25dnl THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27dnl OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29dnl \file m4/memory.m4 30dnl 31dnl Macros to configure the utils::memory module. 32 33 34dnl Entry point to detect all features needed by utils::memory. 35dnl 36dnl This looks for a mechanism to check the available physical memory in the 37dnl system. 38AC_DEFUN([KYUA_MEMORY], [ 39 memory_query=unknown 40 memory_mib=none 41 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"], []) 49 fi 50 if test "${memory_mib}" != none; then 51 memory_query=sysctlbyname 52 fi 53 fi 54 55 if test "${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]) 58 fi 59 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]) 64]) 65 66 67dnl Detects the availability of the sysctlbyname(3) function. 68dnl 69dnl \param action_if_found Code to run if the function is found. 70dnl \param action_if_not_found Code to run if the function is not found. 71AC_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 74 75 AC_CHECK_FUNCS([sysctlbyname], [$1], [$2]) 76]) 77 78 79dnl Looks for a specific sysctl MIB. 80dnl 81dnl \pre sysctlbyname(3) must be present in the system. 82dnl 83dnl \param mib_name The name of the MIB to check for. 84dnl \param flat_mib_name The name of the MIB as a shell variable, for use in 85dnl cache variable names. This should be automatically computed with 86dnl m4_bpatsubst or similar, but my inability to make the code readable 87dnl made me add this parameter instead. 88dnl \param action_if_found Code to run if the MIB is found. 89dnl \param action_if_not_found Code to run if the MIB is not found. 90AC_DEFUN([_KYUA_SYSCTL_MIB], [ 91 AC_CACHE_CHECK( 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> 97#endif 98#if defined(HAVE_SYS_PARAM_H) 99# include <sys/param.h> 100#endif 101#if defined(HAVE_SYS_SYSCTL_H) 102# include <sys/sysctl.h> 103#endif 104#include <stdint.h> 105#include <stdlib.h> 106], [ 107 int64_t memory; 108 size_t memory_length = sizeof(memory); 109 if (sysctlbyname("$1", &memory, &memory_length, NULL, 0) == -1) 110 return EXIT_FAILURE; 111 else 112 return EXIT_SUCCESS; 113])], 114 [kyua_cv_sysctl_$2=yes], 115 [kyua_cv_sysctl_$2=no]) 116 ]) 117 if test "${kyua_cv_sysctl_$2}" = yes; then 118 m4_default([$3], [:]) 119 else 120 m4_default([$4], [:]) 121 fi 122]) 123