diff options
| author | Paul Ollis <paul@cleversheep.org> | 2022-06-05 16:55:54 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2022-06-05 16:55:54 +0100 |
| commit | 6574577cacd393ab7591fc776ea060eebc939e55 (patch) | |
| tree | f583ca9957280e7086b8d14ef44127302829fd40 /src/configure.ac | |
| parent | 1d97db3d987c05af88c30ad20f537bcf3024f9c1 (diff) | |
patch 8.2.5057: using gettimeofday() for timeout is very inefficientv8.2.5057
Problem: Using gettimeofday() for timeout is very inefficient.
Solution: Set a platform dependent timer. (Paul Ollis, closes #10505)
Diffstat (limited to 'src/configure.ac')
| -rw-r--r-- | src/configure.ac | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/src/configure.ac b/src/configure.ac index 913129f665..a6a926e681 100644 --- a/src/configure.ac +++ b/src/configure.ac @@ -1,7 +1,8 @@ dnl configure.ac: autoconf script for Vim -dnl Process this file with autoconf 2.12 or 2.13 to produce "configure". -dnl Should also work with autoconf 2.54 and later. +dnl Process this file with autoconf 2.69 to produce "configure". +dnl This should also work with other versions of autoconf, but 2.70 and later +dnl generate lots of hard to fix "obsolete" warnings. AC_INIT(vim.h) AC_CONFIG_HEADER(auto/config.h:config.h.in) @@ -3812,6 +3813,41 @@ AC_TRY_COMPILE( AC_MSG_RESULT(yes); AC_DEFINE(HAVE_ST_BLKSIZE), AC_MSG_RESULT(no)) +dnl Check for timer_create. It probably requires the 'rt' library. +AC_MSG_CHECKING([for timer_create]) +save_LIBS="$LIBS" +LIBS="$LIBS -lrt" +AC_TRY_LINK([ +#include<signal.h> +#include<time.h> +static void set_flag(union sigval) {} +], [ + struct timespec ts; + struct sigevent action = {0}; + timer_t timer_id; + + action.sigev_notify = SIGEV_THREAD; + action.sigev_notify_function = set_flag; + timer_create(CLOCK_REALTIME, &action, &timer_id); + ], + AC_MSG_RESULT(yes; with -lrt); AC_DEFINE(HAVE_TIMER_CREATE), + LIBS="$save_LIBS" + AC_TRY_LINK([ +#include<signal.h> +#include<time.h> +static void set_flag(union sigval) {} + ], [ + struct timespec ts; + struct sigevent action = {0}; + timer_t timer_id; + + action.sigev_notify = SIGEV_THREAD; + action.sigev_notify_function = set_flag; + timer_create(CLOCK_REALTIME, &action, &timer_id); + ], + AC_MSG_RESULT(yes); AC_DEFINE(HAVE_TIMER_CREATE), + AC_MSG_RESULT(no))) + AC_CACHE_CHECK([whether stat() ignores a trailing slash], [vim_cv_stat_ignores_slash], [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ |