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Remove the recently added USE_SEGMENTED_FILES option, and indeed remove all
support for a nonsegmented mode from md.c. Per recent discussions, there doesn't seem to be much value in a "never segment" option as opposed to segmenting with a suitably large segment size. So instead provide a configure-time switch to set the desired segment size in units of gigabytes. While at it, expose a configure switch for BLCKSZ as well. Zdenek Kotala
This commit is contained in:
Tom Lane
110
configure
vendored
110
configure
vendored
@ -1357,7 +1357,6 @@ Optional Features:
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--enable-debug build with debugging symbols (-g)
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--enable-profiling build with profiling enabled
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--enable-dtrace build with DTrace support
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--disable-segmented-files disable data file segmentation (requires largefile support)
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--enable-depend turn on automatic dependency tracking
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--enable-cassert enable assertion checks (for debugging)
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--enable-thread-safety make client libraries thread-safe
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@ -1373,7 +1372,9 @@ Optional Packages:
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--with-includes=DIRS look for additional header files in DIRS
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--with-libraries=DIRS look for additional libraries in DIRS
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--with-libs=DIRS alternative spelling of --with-libraries
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--with-pgport=PORTNUM change default port number [5432]
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--with-pgport=PORTNUM set default port number [5432]
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--with-blocksize=BLOCKSIZE set block size in kB [8]
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--with-segsize=SEGSIZE set segment size in GB [1]
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--with-tcl build Tcl modules (PL/Tcl)
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--with-tclconfig=DIR tclConfig.sh is in DIR
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--with-perl build Perl modules (PL/Perl)
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@ -2549,34 +2550,102 @@ fi
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#
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# Data file segmentation
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# Block size
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#
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{ echo "$as_me:$LINENO: checking for block size" >&5
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echo $ECHO_N "checking for block size... $ECHO_C" >&6; }
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pgac_args="$pgac_args enable_segmented_files"
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pgac_args="$pgac_args with_blocksize"
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# Check whether --enable-segmented-files was given.
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if test "${enable_segmented_files+set}" = set; then
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enableval=$enable_segmented_files;
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case $enableval in
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# Check whether --with-blocksize was given.
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if test "${with_blocksize+set}" = set; then
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withval=$with_blocksize;
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case $withval in
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yes)
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:
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{ { echo "$as_me:$LINENO: error: argument required for --with-blocksize option" >&5
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echo "$as_me: error: argument required for --with-blocksize option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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no)
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:
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{ { echo "$as_me:$LINENO: error: argument required for --with-blocksize option" >&5
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echo "$as_me: error: argument required for --with-blocksize option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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*)
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{ { echo "$as_me:$LINENO: error: no argument expected for --enable-segmented-files option" >&5
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echo "$as_me: error: no argument expected for --enable-segmented-files option" >&2;}
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{ (exit 1); exit 1; }; }
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blocksize=$withval
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;;
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esac
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else
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enable_segmented_files=yes
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blocksize=8
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fi
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case ${blocksize} in
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1) BLCKSZ=1024;;
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2) BLCKSZ=2048;;
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4) BLCKSZ=4096;;
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8) BLCKSZ=8192;;
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16) BLCKSZ=16384;;
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32) BLCKSZ=32768;;
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*) { { echo "$as_me:$LINENO: error: Invalid block size. Allowed values are 1,2,4,8,16,32." >&5
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echo "$as_me: error: Invalid block size. Allowed values are 1,2,4,8,16,32." >&2;}
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{ (exit 1); exit 1; }; }
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esac
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{ echo "$as_me:$LINENO: result: ${blocksize}kB" >&5
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echo "${ECHO_T}${blocksize}kB" >&6; }
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cat >>confdefs.h <<_ACEOF
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#define BLCKSZ ${BLCKSZ}
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_ACEOF
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#
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# File segment size
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#
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{ echo "$as_me:$LINENO: checking for segment size" >&5
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echo $ECHO_N "checking for segment size... $ECHO_C" >&6; }
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pgac_args="$pgac_args with_segsize"
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# Check whether --with-segsize was given.
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if test "${with_segsize+set}" = set; then
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withval=$with_segsize;
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case $withval in
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yes)
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{ { echo "$as_me:$LINENO: error: argument required for --with-segsize option" >&5
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echo "$as_me: error: argument required for --with-segsize option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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no)
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{ { echo "$as_me:$LINENO: error: argument required for --with-segsize option" >&5
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echo "$as_me: error: argument required for --with-segsize option" >&2;}
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{ (exit 1); exit 1; }; }
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;;
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*)
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segsize=$withval
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;;
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esac
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else
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segsize=1
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fi
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# this expression is set up to avoid unnecessary integer overflow
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RELSEG_SIZE=`expr '(' 1024 '*' ${segsize} / ${blocksize} ')' '*' 1024`
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test $? -eq 0 || exit 1
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{ echo "$as_me:$LINENO: result: ${segsize}GB" >&5
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echo "${ECHO_T}${segsize}GB" >&6; }
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cat >>confdefs.h <<_ACEOF
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#define RELSEG_SIZE ${RELSEG_SIZE}
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_ACEOF
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#
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# C compiler
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@ -24287,12 +24356,11 @@ _ACEOF
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if test "$ac_cv_sizeof_off_t" -lt 8 -o "$enable_segmented_files" = "yes"; then
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cat >>confdefs.h <<\_ACEOF
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#define USE_SEGMENTED_FILES 1
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_ACEOF
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# If we don't have largefile support, can't handle segsize >= 2GB.
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if test "$ac_cv_sizeof_off_t" -lt 8 -a "$segsize" != "1"; then
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{ { echo "$as_me:$LINENO: error: Large file support is not enabled. Segment size cannot be larger than 1GB." >&5
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echo "$as_me: error: Large file support is not enabled. Segment size cannot be larger than 1GB." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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# SunOS doesn't handle negative byte comparisons properly with +/- return
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