diff options
Diffstat (limited to 'ares')
| -rw-r--r-- | ares/acinclude.m4 | 144 | ||||
| -rw-r--r-- | ares/ares__timeval.c | 2 | ||||
| -rw-r--r-- | ares/configure.ac | 5 |
3 files changed, 97 insertions, 54 deletions
diff --git a/ares/acinclude.m4 b/ares/acinclude.m4 index 2a7bc02f6..fb00d0981 100644 --- a/ares/acinclude.m4 +++ b/ares/acinclude.m4 @@ -1283,29 +1283,16 @@ AC_DEFUN([TYPE_IN_ADDR_T], ]) dnl AC_CHECK_TYPE ]) dnl AC_DEFUN -dnl CURL_CHECK_LIBS_CLOCK_GETTIME +dnl CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC dnl ------------------------------------------------- -dnl Check for libraries needed for clock_gettime, -dnl and prepended to LIBS any needed libraries. +dnl Check if monotonic clock_gettime is available. -AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME], [ +AC_DEFUN([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC], [ AC_REQUIRE([AC_HEADER_TIME])dnl AC_CHECK_HEADERS(sys/types.h sys/time.h time.h) - # - AC_MSG_CHECKING([for clock_gettime in libraries]) - # - curl_cv_save_LIBS="$LIBS" - curl_cv_gclk_LIBS="unknown" - # - for x_xlibs in '' '-lrt' '-lposix4' ; do - if test -z "$x_xlibs"; then - LIBS="$curl_cv_save_LIBS" - else - LIBS="$x_xlibs $curl_cv_save_LIBS" - fi - AC_LINK_IFELSE([ - AC_LANG_PROGRAM([ -#undef inline + AC_MSG_CHECKING([for monotonic clock_gettime]) + AC_COMPILE_IFELSE([ + AC_LANG_PROGRAM([ #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif @@ -1319,43 +1306,98 @@ AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME], [ #include <time.h> #endif #endif - ],[ - (void)clock_gettime(0, 0); - ]) ],[ - curl_cv_gclk_LIBS="$x_xlibs" - break + struct timespec ts; + (void)clock_gettime(CLOCK_MONOTONIC, &ts); ]) - done - # - LIBS="$curl_cv_save_LIBS" + ],[ + AC_MSG_RESULT([yes]) + ac_cv_func_clock_gettime="yes" + ],[ + AC_MSG_RESULT([no]) + ac_cv_func_clock_gettime="no" + ]) + dnl Definition of HAVE_CLOCK_GETTIME_MONOTONIC is intentionally + dnl postponed until library linking checks for clock_gettime pass. +]) dnl AC_DEFUN + +dnl CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC +dnl ------------------------------------------------- +dnl If monotonic clock_gettime is available then, +dnl check and prepended to LIBS any needed libraries. + +AC_DEFUN([CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC], [ + AC_REQUIRE([CURL_CHECK_FUNC_CLOCK_GETTIME_MONOTONIC])dnl # - case X-"$curl_cv_gclk_LIBS" in - X-unknown) - AC_MSG_RESULT([cannot find clock_gettime]) - ac_cv_func_clock_gettime="no" - ;; - X-) - AC_MSG_RESULT([no additional lib required]) - ac_cv_func_clock_gettime="yes" - ;; - *) - if test -z "$curl_cv_save_LIBS"; then - LIBS="$curl_cv_gclk_LIBS" + if test "$ac_cv_func_clock_gettime" = "yes"; then + # + AC_MSG_CHECKING([for clock_gettime in libraries]) + # + curl_cv_save_LIBS="$LIBS" + curl_cv_gclk_LIBS="unknown" + # + for x_xlibs in '' '-lrt' '-lposix4' ; do + if test -z "$x_xlibs"; then + LIBS="$curl_cv_save_LIBS" else - LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS" + LIBS="$x_xlibs $curl_cv_save_LIBS" fi - AC_MSG_RESULT([$curl_cv_gclk_LIBS]) - ac_cv_func_clock_gettime="yes" - ;; - esac - # - case "$ac_cv_func_clock_gettime" in - yes) - AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME, 1, - [Define to 1 if you have the clock_gettime function.]) - ;; - esac + AC_LINK_IFELSE([ + AC_LANG_PROGRAM([ +#ifdef HAVE_SYS_TYPES_H +#include <sys/types.h> +#endif +#ifdef HAVE_SYS_TIME_H +#include <sys/time.h> +#ifdef TIME_WITH_SYS_TIME +#include <time.h> +#endif +#else +#ifdef HAVE_TIME_H +#include <time.h> +#endif +#endif + ],[ + struct timespec ts; + (void)clock_gettime(CLOCK_MONOTONIC, &ts); + ]) + ],[ + curl_cv_gclk_LIBS="$x_xlibs" + break + ]) + done + # + LIBS="$curl_cv_save_LIBS" + # + case X-"$curl_cv_gclk_LIBS" in + X-unknown) + AC_MSG_RESULT([cannot find clock_gettime]) + AC_MSG_WARN([HAVE_CLOCK_GETTIME_MONOTONIC will not be defined]) + ac_cv_func_clock_gettime="no" + ;; + X-) + AC_MSG_RESULT([no additional lib required]) + ac_cv_func_clock_gettime="yes" + ;; + *) + if test -z "$curl_cv_save_LIBS"; then + LIBS="$curl_cv_gclk_LIBS" + else + LIBS="$curl_cv_gclk_LIBS $curl_cv_save_LIBS" + fi + AC_MSG_RESULT([$curl_cv_gclk_LIBS]) + ac_cv_func_clock_gettime="yes" + ;; + esac + # + case "$ac_cv_func_clock_gettime" in + yes) + AC_DEFINE_UNQUOTED(HAVE_CLOCK_GETTIME_MONOTONIC, 1, + [Define to 1 if you have the clock_gettime function and monotonic timer.]) + ;; + esac + # + fi # ]) dnl AC_DEFUN diff --git a/ares/ares__timeval.c b/ares/ares__timeval.c index 2fbf1688c..6de6c6552 100644 --- a/ares/ares__timeval.c +++ b/ares/ares__timeval.c @@ -33,7 +33,7 @@ struct timeval ares__tvnow(void) return now; } -#elif defined(HAVE_CLOCK_GETTIME) && defined(CLOCK_MONOTONIC) +#elif defined(HAVE_CLOCK_GETTIME_MONOTONIC) struct timeval ares__tvnow(void) { diff --git a/ares/configure.ac b/ares/configure.ac index 28f90c8ab..70dbcce18 100644 --- a/ares/configure.ac +++ b/ares/configure.ac @@ -261,9 +261,10 @@ dnl socket lib? AC_CHECK_FUNC(connect, , [ AC_CHECK_LIB(socket, connect) ]) dnl ********************************************************************** -dnl Check for libraries needed for function clock_gettime +dnl In case that function clock_gettime with monotonic timer is available, +dnl check for additional required libraries. dnl ********************************************************************** -CURL_CHECK_LIBS_CLOCK_GETTIME +CURL_CHECK_LIBS_CLOCK_GETTIME_MONOTONIC AC_MSG_CHECKING([whether to use libgcc]) AC_ARG_ENABLE(libgcc, |