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Add timestamp functions with --disable-realtime configure option. [AJ]

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This commit is contained in:
Alasdair Kergon 2006-09-30 20:02:02 +00:00
parent 34fadac485
commit 8b1a3214b5
7 changed files with 302 additions and 1 deletions
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1
WHATS_NEW
View File

@ -1,5 +1,6 @@
Version 2.02.11 -
=====================================
Add timestamp functions with --disable-realtime configure option.
Add %VG, %LV and %FREE suffices to lvcreate/lvresize --extents arg.
Fix two potential NULL pointer derefs in error cases in vg_read().
Separate --enable-cluster from locking lib options in lvmconf.sh.

108
configure vendored
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@ -310,7 +310,7 @@ ac_includes_default="\
#endif"
ac_default_prefix=/usr
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os AWK CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN_S SET_MAKE RANLIB ac_ct_RANLIB CFLOW_CMD CSCOPE_CMD CPP EGREP ALLOCA LIBOBJS POW_LIB MSGFMT MODPROBE_CMD JOBS STATIC_LINK LVM1 POOL SNAPSHOTS MIRRORS OWNER GROUP COPTIMISE_FLAG CLDFLAGS CLDWHOLEARCHIVE CLDNOWHOLEARCHIVE LDDEPS LIB_SUFFIX LVM_VERSION LVM1_FALLBACK DEBUG DEVMAPPER HAVE_LIBDL HAVE_SELINUX CMDLIB LOCALEDIR CONFDIR STATICDIR INTL_PACKAGE INTL CLVMD CLUSTER FSADM DMEVENTD LTLIBOBJS'
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os AWK CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA LN_S SET_MAKE RANLIB ac_ct_RANLIB CFLOW_CMD CSCOPE_CMD CPP EGREP ALLOCA LIBOBJS POW_LIB MSGFMT MODPROBE_CMD JOBS STATIC_LINK LVM1 POOL SNAPSHOTS MIRRORS OWNER GROUP COPTIMISE_FLAG CLDFLAGS CLDWHOLEARCHIVE CLDNOWHOLEARCHIVE LDDEPS LIB_SUFFIX LVM_VERSION LVM1_FALLBACK DEBUG DEVMAPPER HAVE_LIBDL HAVE_SELINUX HAVE_REALTIME CMDLIB LOCALEDIR CONFDIR STATICDIR INTL_PACKAGE INTL CLVMD CLUSTER FSADM DMEVENTD LTLIBOBJS'
ac_subst_files=''
# Initialize some variables set by options.
@ -853,6 +853,7 @@ Optional Features:
statically. Default is dynamic linking
--enable-readline Enable readline support
--disable-selinux Disable selinux support
--disable-realtime Disable realtime clock support
--enable-debug Enable debugging
--disable-devmapper Disable device-mapper interaction
--disable-o_direct Disable O_DIRECT
@ -1459,6 +1460,7 @@ case "$host_os" in
DEVMAPPER=yes
ODIRECT=yes
SELINUX=yes
REALTIME=yes
CLUSTER=internal
FSADM=no ;;
darwin*)
@ -1473,6 +1475,7 @@ case "$host_os" in
DEVMAPPER=yes
ODIRECT=no
SELINUX=no
REALTIME=no
CLUSTER=none
FSADM=no ;;
esac
@ -7431,6 +7434,17 @@ fi;
echo "$as_me:$LINENO: result: $SELINUX" >&5
echo "${ECHO_T}$SELINUX" >&6
################################################################################
echo "$as_me:$LINENO: checking whether to enable realtime support" >&5
echo $ECHO_N "checking whether to enable realtime support... $ECHO_C" >&6
# Check whether --enable-realtime or --disable-realtime was given.
if test "${enable_realtime+set}" = set; then
enableval="$enable_realtime"
REALTIME=$enableval
fi;
echo "$as_me:$LINENO: result: $REALTIME" >&5
echo "${ECHO_T}$REALTIME" >&6
################################################################################
echo "$as_me:$LINENO: checking whether to build cluster LVM daemon" >&5
echo $ECHO_N "checking whether to build cluster LVM daemon... $ECHO_C" >&6
@ -8420,6 +8434,96 @@ echo "$as_me: WARNING: Disabling selinux" >&2;}
fi
fi
################################################################################
if test x$REALTIME = xyes; then
echo "$as_me:$LINENO: checking for clock_gettime function" >&5
echo $ECHO_N "checking for clock_gettime function... $ECHO_C" >&6
echo "$as_me:$LINENO: checking for clock_gettime in -lrt" >&5
echo $ECHO_N "checking for clock_gettime in -lrt... $ECHO_C" >&6
if test "${ac_cv_lib_rt_clock_gettime+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt $LIBS"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
/* Override any gcc2 internal prototype to avoid an error. */
#ifdef __cplusplus
extern "C"
#endif
/* We use char because int might match the return type of a gcc2
builtin and then its argument prototype would still apply. */
char clock_gettime ();
int
main ()
{
clock_gettime ();
;
return 0;
}
_ACEOF
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag"
|| test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
ac_cv_lib_rt_clock_gettime=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
ac_cv_lib_rt_clock_gettime=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
echo "$as_me:$LINENO: result: $ac_cv_lib_rt_clock_gettime" >&5
echo "${ECHO_T}$ac_cv_lib_rt_clock_gettime" >&6
if test $ac_cv_lib_rt_clock_gettime = yes; then
HAVE_REALTIME=yes
else
HAVE_REALTIME=no
fi
echo "$as_me:$LINENO: result: $HAVE_REALTIME" >&5
echo "${ECHO_T}$HAVE_REALTIME" >&6
if test x$HAVE_REALTIME = xyes; then
cat >>confdefs.h <<\_ACEOF
#define HAVE_REALTIME 1
_ACEOF
LIBS="-lrt $LIBS"
else
{ echo "$as_me:$LINENO: WARNING: Disabling realtime clock" >&5
echo "$as_me: WARNING: Disabling realtime clock" >&2;}
fi
fi
################################################################################
for ac_header in getopt.h
@ -11095,6 +11199,7 @@ fi
################################################################################
@ -11789,6 +11894,7 @@ s,@DEBUG@,$DEBUG,;t t
s,@DEVMAPPER@,$DEVMAPPER,;t t
s,@HAVE_LIBDL@,$HAVE_LIBDL,;t t
s,@HAVE_SELINUX@,$HAVE_SELINUX,;t t
s,@HAVE_REALTIME@,$HAVE_REALTIME,;t t
s,@CMDLIB@,$CMDLIB,;t t
s,@LOCALEDIR@,$LOCALEDIR,;t t
s,@CONFDIR@,$CONFDIR,;t t

25
configure.in
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@ -42,6 +42,7 @@ case "$host_os" in
DEVMAPPER=yes
ODIRECT=yes
SELINUX=yes
REALTIME=yes
CLUSTER=internal
FSADM=no ;;
darwin*)
@ -56,6 +57,7 @@ case "$host_os" in
DEVMAPPER=yes
ODIRECT=no
SELINUX=no
REALTIME=no
CLUSTER=none
FSADM=no ;;
esac
@ -282,6 +284,13 @@ AC_ARG_ENABLE(selinux, [ --disable-selinux Disable selinux support],
SELINUX=$enableval)
AC_MSG_RESULT($SELINUX)
################################################################################
dnl -- Disable realtime clock support
AC_MSG_CHECKING(whether to enable realtime support)
AC_ARG_ENABLE(realtime, [ --disable-realtime Disable realtime clock support],
REALTIME=$enableval)
AC_MSG_RESULT($REALTIME)
################################################################################
dnl -- Build cluster LVM daemon
AC_MSG_CHECKING(whether to build cluster LVM daemon)
@ -449,6 +458,21 @@ if test x$SELINUX = xyes; then
fi
fi
################################################################################
dnl -- Check for realtime clock support
if test x$REALTIME = xyes; then
AC_MSG_CHECKING(for clock_gettime function)
AC_CHECK_LIB(rt, clock_gettime, HAVE_REALTIME=yes, HAVE_REALTIME=no)
AC_MSG_RESULT($HAVE_REALTIME)
if test x$HAVE_REALTIME = xyes; then
AC_DEFINE([HAVE_REALTIME], 1, [Define to 1 to include support for realtime clock.])
LIBS="-lrt $LIBS"
else
AC_MSG_WARN(Disabling realtime clock)
fi
fi
################################################################################
dnl -- Check for getopt
AC_CHECK_HEADERS(getopt.h, AC_DEFINE([HAVE_GETOPTLONG], 1, [Define to 1 to if getopt_long is available.]))
@ -578,6 +602,7 @@ AC_SUBST(DEBUG)
AC_SUBST(DEVMAPPER)
AC_SUBST(HAVE_LIBDL)
AC_SUBST(HAVE_SELINUX)
AC_SUBST(HAVE_REALTIME)
AC_SUBST(CMDLIB)
AC_SUBST(MSGFMT)
AC_SUBST(LOCALEDIR)

1
lib/Makefile.in
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@ -79,6 +79,7 @@ SOURCES =\
misc/lvm-file.c \
misc/lvm-string.c \
misc/lvm-wrappers.c \
misc/timestamp.c \
mm/memlock.c \
regex/matcher.c \
regex/parse_rx.c \

3
lib/misc/configure.h.in
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@ -174,6 +174,9 @@
/* Define to 1 if you have the <selinux/selinux.h> header file. */
#undef HAVE_SELINUX_SELINUX_H
/* define to 1 to include support for realtime clock */
#undef HAVE_REALTIME
/* Define to 1 if you have the `setlocale' function. */
#undef HAVE_SETLOCALE

132
lib/misc/timestamp.c Normal file
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@ -0,0 +1,132 @@
/*
* Copyright (C) 2006 Rackable Systems All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License v.2.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Abstract out the time methods used so they can be adjusted later -
* the results of these routines should stay in-core. This implementation
* requires librt.
*/
#include "lib.h"
#include <stdlib.h>
#include "timestamp.h"
/*
* The realtime section uses clock_gettime with the CLOCK_MONOTONIC
* parameter to prevent issues with time warps
*/
#ifdef HAVE_REALTIME
#include <time.h>
#include <bits/time.h>
struct timestamp {
struct timespec t;
};
struct timestamp *get_timestamp(void)
{
struct timestamp *ts = NULL;
int err = 0;
if (!(ts = dm_malloc(sizeof(*ts))))
return_NULL;
if (clock_gettime(CLOCK_MONOTONIC, &ts->t)) {
log_sys_error("clock_gettime", "get_timestamp");
return NULL;
}
return ts;
}
/* cmp_timestamp: Compare two timestamps
*
* Return: -1 if t1 is less than t2
* 0 if t1 is equal to t2
* 1 if t1 is greater than t2
*/
int cmp_timestamp(struct timestamp *t1, struct timestamp *t2)
{
if(t1->t.tv_sec < t2->t.tv_sec)
return -1;
if(t1->t.tv_sec > t2->t.tv_sec)
return 1;
if(t1->t.tv_nsec < t2->t.tv_nsec)
return -1;
if(t1->t.tv_nsec > t2->t.tv_nsec)
return 1;
return 0;
}
#else /* ! HAVE_REALTIME */
/*
* The !realtime section just uses gettimeofday and is therefore subject
* to ntp-type time warps - not sure if should allow that.
*/
#include <sys/time.h>
struct timestamp {
struct timeval t;
};
struct timestamp *get_timestamp(void)
{
struct timestamp *ts = NULL;
int err = 0;
if (!(ts = dm_malloc(sizeof(*ts))))
return_NULL;
if ((err = gettimeofday(&ts->t, NULL))) {
log_sys_error("gettimeofday", "get_timestamp");
return NULL;
}
return ts;
}
/* cmp_timestamp: Compare two timestamps
*
* Return: -1 if t1 is less than t2
* 0 if t1 is equal to t2
* 1 if t1 is greater than t2
*/
int cmp_timestamp(struct timestamp *t1, struct timestamp *t2)
{
if(t1->t.tv_sec < t2->t.tv_sec)
return -1;
if(t1->t.tv_sec > t2->t.tv_sec)
return 1;
if(t1->t.tv_usec < t2->t.tv_usec)
return -1;
if(t1->t.tv_usec > t2->t.tv_usec)
return 1;
return 0;
}
#endif /* HAVE_REALTIME */
void destroy_timestamp(struct timestamp *t)
{
if (t)
dm_free(t);
}

33
lib/misc/timestamp.h Normal file
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@ -0,0 +1,33 @@
/*
* Copyright (C) 2006 Rackable Systems All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License v.2.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LVM_TIMESTAMP_H
#define _LVM_TIMESTAMP_H
struct timestamp;
struct timestamp *get_timestamp(void);
/* cmp_timestamp: Compare two timestamps
*
* Return: -1 if t1 is less than t2
* 0 if t1 is equal to t2
* 1 if t1 is greater than t2
*/
int cmp_timestamp(struct timestamp *t1, struct timestamp *t2);
void destroy_timestamp(struct timestamp *t);
#endif /* _LVM_TIMESTAMP_H */