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| author | Thomas Habets <thomas@habets.pp.se> | 2010-09-05 00:30:46 +0200 |
|---|---|---|
| committer | Thomas Habets <thomas@habets.pp.se> | 2010-09-05 00:33:53 +0200 |
| commit | 3bff1171e661bfbb3a53bda202a7a43f6fff4e20 (patch) | |
| tree | 695eef42f332078b6b65661f1850857484ade788 /configure.ac | |
| parent | 86112ba1232dda9ec8cc2bb57269ac2f4584e8cb (diff) | |
| download | arping-3bff1171e661bfbb3a53bda202a7a43f6fff4e20.tar.gz | |
Use monotonic clock to time out waiting for a reply
If clock_gettime(CLOCK_MONOTONIC,) is supported then use that and all should
be well. If it's not then at least work around hanging until next ping.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 2b42253..e653723 100644 --- a/configure.ac +++ b/configure.ac @@ -22,6 +22,7 @@ AC_CHECK_LIB([net], [libnet_name_resolve], [AC_MSG_ERROR([libnet 1.0.x found. Arping 2.x requires libnet 1.1.x])]) AC_CHECK_LIB([net], [libnet_init], ,[AC_MSG_ERROR([libnet 1.1.x not found])]) AC_CHECK_LIB([pcap], [pcap_open_live], ,[AC_MSG_ERROR([libpcap not found])]) +AC_SEARCH_LIBS([clock_gettime], [rt]) # Checks for header files. AC_HEADER_STDC @@ -30,6 +31,7 @@ arpa/inet.h \ netinet/in.h \ stdlib.h \ sys/socket.h \ +time.h \ sys/time.h \ sys/types.h \ stdint.h \ @@ -70,6 +72,29 @@ case "$target_os" in AC_LIBOBJ([findif_other]) ;; esac + + + +# check for CLOCK_MONOTONIC +AC_CACHE_CHECK([for CLOCK_MONOTONIC], + ac_cv_have_clock_monotonic, [ + AC_TRY_RUN( + [ +#include <time.h> +int main() { +struct timespec ts; +exit(!!clock_gettime(CLOCK_MONOTONIC, &ts)); +} + ], + [ ac_cv_have_clock_monotonic="yes" ], + [ ac_cv_have_clock_monotonic="no" ] + ) +]) +AM_CONDITIONAL(HAVE_CLOCK_MONOTONIC, test x$ac_cv_have_clock_monotonic = xyes) +if test x$ac_cv_have_clock_monotonic = xyes; then + AC_DEFINE([HAVE_CLOCK_MONOTONIC], [1], [Monotonic clock]) +fi + AC_CONFIG_FILES([Makefile]) AC_CONFIG_FILES([src/Makefile]) AC_CONFIG_FILES([doc/Makefile]) |