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configure: allow building without getrusage

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Measuring the resource usage of threads is moderately expensive
since it requires doing an additional system call everytime a
thread context switches. Make it possible to disable this with
a configuration option.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
Stephen Hemminger 2013-01-04 22:29:22 +00:00 committed by David Lamparter
parent 07ff4dc4d2
commit 47f6aef02b
1 changed files with 9 additions and 6 deletions
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15
configure.ac
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@ -266,6 +266,8 @@ AC_ARG_ENABLE(isis_topology,
[ --enable-isis-topology enable IS-IS topology generator])
AC_ARG_ENABLE(capabilities,
[ --disable-capabilities disable using POSIX capabilities])
AC_ARG_ENABLE(rusage,
[ --disable-rusage disable using getrusage])
AC_ARG_ENABLE(gcc_ultra_verbose,
[ --enable-gcc-ultra-verbose enable ultra verbose GCC warnings])
AC_ARG_ENABLE(linux24_tcp_md5,
@ -1486,12 +1488,13 @@ AC_CHECK_TYPES([struct in_pktinfo],
dnl --------------------------------------
dnl checking for getrusage struct and call
dnl --------------------------------------
AC_MSG_CHECKING(whether getrusage is available)
AC_TRY_COMPILE([#include <sys/resource.h>
],[struct rusage ac_x; getrusage (RUSAGE_SELF, &ac_x);],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RUSAGE,,rusage)],
AC_MSG_RESULT(no))
if test "${enable_rusage}" != "no"; then
AC_MSG_CHECKING(whether getrusage is available)
AC_TRY_COMPILE([#include <sys/resource.h>],[struct rusage ac_x; getrusage (RUSAGE_SELF, &ac_x);],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RUSAGE,,rusage)],
AC_MSG_RESULT(no))
fi
dnl --------------------------------------
dnl checking for clock_time monotonic struct and call