database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-11 20:28:21 +03:00
Code Activity

Allow dynamic allocation of shared memory segments.

Browse Source 
Patch by myself and Amit Kapila.  Design help from Noah Misch.  Review
by Andres Freund.
This commit is contained in:
Robert Haas
2013-10-09 21:05:02 -04:00
parent f566515192
commit 0ac5e5a7e1
18 changed files with 2470 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

177
configure vendored
View File

@ -8384,6 +8384,180 @@ if test "$ac_res" != no; then
fi
{ $as_echo "$as_me:$LINENO: checking for library containing shm_open" >&5
$as_echo_n "checking for library containing shm_open... " >&6; }
if test "${ac_cv_search_shm_open+set}" = set; then
$as_echo_n "(cached) " >&6
else
ac_func_search_save_LIBS=$LIBS
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char shm_open ();
int
main ()
{
return shm_open ();
;
return 0;
}
_ACEOF
for ac_lib in '' rt; do
if test -z "$ac_lib"; then
ac_res="none required"
else
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
$as_echo "$ac_try_echo") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && {
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest$ac_exeext && {
test "$cross_compiling" = yes ||
$as_test_x conftest$ac_exeext
}; then
ac_cv_search_shm_open=$ac_res
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi
rm -rf conftest.dSYM
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext
if test "${ac_cv_search_shm_open+set}" = set; then
break
fi
done
if test "${ac_cv_search_shm_open+set}" = set; then
:
else
ac_cv_search_shm_open=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:$LINENO: result: $ac_cv_search_shm_open" >&5
$as_echo "$ac_cv_search_shm_open" >&6; }
ac_res=$ac_cv_search_shm_open
if test "$ac_res" != no; then
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
fi
{ $as_echo "$as_me:$LINENO: checking for library containing shm_unlink" >&5
$as_echo_n "checking for library containing shm_unlink... " >&6; }
if test "${ac_cv_search_shm_unlink+set}" = set; then
$as_echo_n "(cached) " >&6
else
ac_func_search_save_LIBS=$LIBS
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
#ifdef __cplusplus
extern "C"
#endif
char shm_unlink ();
int
main ()
{
return shm_unlink ();
;
return 0;
}
_ACEOF
for ac_lib in '' rt; do
if test -z "$ac_lib"; then
ac_res="none required"
else
ac_res=-l$ac_lib
LIBS="-l$ac_lib $ac_func_search_save_LIBS"
fi
rm -f conftest.$ac_objext conftest$ac_exeext
if { (ac_try="$ac_link"
case "(($ac_try" in
*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
*) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
$as_echo "$ac_try_echo") >&5
(eval "$ac_link") 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
$as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && {
test -z "$ac_c_werror_flag" ||
test ! -s conftest.err
} && test -s conftest$ac_exeext && {
test "$cross_compiling" = yes ||
$as_test_x conftest$ac_exeext
}; then
ac_cv_search_shm_unlink=$ac_res
else
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
fi
rm -rf conftest.dSYM
rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
conftest$ac_exeext
if test "${ac_cv_search_shm_unlink+set}" = set; then
break
fi
done
if test "${ac_cv_search_shm_unlink+set}" = set; then
:
else
ac_cv_search_shm_unlink=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:$LINENO: result: $ac_cv_search_shm_unlink" >&5
$as_echo "$ac_cv_search_shm_unlink" >&6; }
ac_res=$ac_cv_search_shm_unlink
if test "$ac_res" != no; then
test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
fi
# Solaris:
{ $as_echo "$as_me:$LINENO: checking for library containing fdatasync" >&5
$as_echo_n "checking for library containing fdatasync... " >&6; }
@ -19763,7 +19937,8 @@ LIBS=`echo "$LIBS" | sed -e 's/-ledit//g' -e 's/-lreadline//g'`
for ac_func in cbrt dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll pstat readlink setproctitle setsid sigprocmask symlink sync_file_range towlower utime utimes wcstombs wcstombs_l
for ac_func in cbrt dlopen fdatasync getifaddrs getpeerucred getrlimit mbstowcs_l memmove poll pstat readlink setproctitle setsid shm_open sigprocmask symlink sync_file_range towlower utime utimes wcstombs wcstombs_l
do
as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
{ $as_echo "$as_me:$LINENO: checking for $ac_func" >&5