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Use setproctitle_fast() to update the ps status, if available. 

FreeBSD has introduced a faster variant of setproctitle().  Use it,
where available.

Author: Thomas Munro
Discussion: https://postgr.es/m/CAEepm=1wKMTi81uodJ=1KbJAz5WedOg=cr8ewEXrUFeaxWEgww@mail.gmail.com
This commit is contained in:
Thomas Munro 2018-07-24 13:09:22 +12:00
parent 3214463228
commit 1bc180cd2a
4 changed files with 14 additions and 4 deletions
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2
configure vendored
View File

@ -14916,7 +14916,7 @@ fi
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
for ac_func in cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setsid shm_open symlink sync_file_range utime utimes wcstombs_l
for ac_func in cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l
do :
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"

2
configure.in
View File

@ -1540,7 +1540,7 @@ PGAC_FUNC_WCSTOMBS_L
LIBS_including_readline="$LIBS"
LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
AC_CHECK_FUNCS([cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
AC_CHECK_FUNCS([cbrt clock_gettime dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll posix_fallocate pstat pthread_is_threaded_np readlink setproctitle setproctitle_fast setsid shm_open symlink sync_file_range utime utimes wcstombs_l])
AC_REPLACE_FUNCS(fseeko)
case $host_os in

11
src/backend/utils/misc/ps_status.c
View File

@ -38,6 +38,9 @@ bool update_process_title = true;
/*
* Alternative ways of updating ps display:
*
* PS_USE_SETPROCTITLE_FAST
* use the function setproctitle_fast(const char *, ...)
* (newer FreeBSD systems)
* PS_USE_SETPROCTITLE
* use the function setproctitle(const char *, ...)
* (newer BSD systems)
@ -59,7 +62,9 @@ bool update_process_title = true;
* don't update ps display
* (This is the default, as it is safest.)
*/
#if defined(HAVE_SETPROCTITLE)
#if defined(HAVE_SETPROCTITLE_FAST)
#define PS_USE_SETPROCTITLE_FAST
#elif defined(HAVE_SETPROCTITLE)
#define PS_USE_SETPROCTITLE
#elif defined(HAVE_PSTAT) && defined(PSTAT_SETCMD)
#define PS_USE_PSTAT
@ -286,7 +291,7 @@ init_ps_display(const char *username, const char *dbname,
* Make fixed prefix of ps display.
*/
#ifdef PS_USE_SETPROCTITLE
#if defined(PS_USE_SETPROCTITLE) || defined(PS_USE_SETPROCTITLE_FAST)
/*
* apparently setproctitle() already adds a `progname:' prefix to the ps
@ -349,6 +354,8 @@ set_ps_display(const char *activity, bool force)
#ifdef PS_USE_SETPROCTITLE
setproctitle("%s", ps_buffer);
#elif defined(PS_USE_SETPROCTITLE_FAST)
setproctitle_fast("%s", ps_buffer);
#endif
#ifdef PS_USE_PSTAT

3
src/include/pg_config.h.in
View File

@ -489,6 +489,9 @@
/* Define to 1 if you have the `setproctitle' function. */
#undef HAVE_SETPROCTITLE
/* Define to 1 if you have the `setproctitle_fast' function. */
#undef HAVE_SETPROCTITLE_FAST
/* Define to 1 if you have the `setsid' function. */
#undef HAVE_SETSID