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Repair parallel make in backend tree (and make it really parallel).

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Make Gen_fmgrtab.sh reasonably robust against concurrent invocation.
This commit is contained in:
Peter Eisentraut
2000-07-13 16:07:14 +00:00
parent 9191d684a7
commit 8a3cbc84ef
8 changed files with 110 additions and 160 deletions
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31
src/backend/utils/Gen_fmgrtab.sh
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@@ -9,7 +9,7 @@
#
#
# IDENTIFICATION
# $Header: /cvsroot/pgsql/src/backend/utils/Attic/Gen_fmgrtab.sh,v 1.16 2000/07/06 21:33:30 petere Exp $
# $Header: /cvsroot/pgsql/src/backend/utils/Attic/Gen_fmgrtab.sh,v 1.17 2000/07/13 16:07:06 petere Exp $
#
#-------------------------------------------------------------------------
@@ -19,7 +19,7 @@ CMDNAME=`basename $0`
: ${CPP='cc -E'}
cleanup(){
[ x"$noclean" != x"t" ] && rm -f "$CPPTMPFILE" "$RAWFILE"
[ x"$noclean" != x"t" ] && rm -f "$CPPTMPFILE" "$RAWFILE" "$$-$OIDSFILE" "$$-$TABLEFILE"
}
BKIOPTS=
@@ -71,13 +71,13 @@ if [ x"$INFILE" = x ] ; then
exit 1
fi
CPPTMPFILE=fmgrtmp.c
RAWFILE=fmgr.raw
CPPTMPFILE="$$-fmgrtmp.c"
RAWFILE="$$-fmgr.raw"
OIDSFILE=fmgroids.h
TABLEFILE=fmgrtab.c
trap 'echo "Caught signal." ; cleanup ; exit 1' 1 2 3 15
trap 'echo "Caught signal." ; cleanup ; exit 1' 1 2 15
#
@@ -124,7 +124,7 @@ cpp_define=`echo $OIDSFILE | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTU
#
# Generate fmgroids.h
#
cat > "$OIDSFILE" <<FuNkYfMgRsTuFf
cat > "$$-$OIDSFILE" <<FuNkYfMgRsTuFf
/*-------------------------------------------------------------------------
*
* $OIDSFILE
@@ -165,7 +165,7 @@ FuNkYfMgRsTuFf
tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' < $RAWFILE | \
$AWK '
BEGIN { OFS = ""; }
{ if (seenit[$(NF-1)]++ == 0) print "#define F_", $(NF-1), " ", $1; }' >> "$OIDSFILE"
{ if (seenit[$(NF-1)]++ == 0) print "#define F_", $(NF-1), " ", $1; }' >> "$$-$OIDSFILE"
if [ $? -ne 0 ]; then
cleanup
@@ -173,7 +173,7 @@ if [ $? -ne 0 ]; then
exit 1
fi
cat >> "$OIDSFILE" <<FuNkYfMgRsTuFf
cat >> "$$-$OIDSFILE" <<FuNkYfMgRsTuFf
#endif /* $cpp_define */
FuNkYfMgRsTuFf
@@ -187,7 +187,7 @@ FuNkYfMgRsTuFf
# this table definition as a separate C file that won't need to include any
# "real" declarations for those functions!
#
cat > "$TABLEFILE" <<FuNkYfMgRtAbStUfF
cat > "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
/*-------------------------------------------------------------------------
*
* $TABLEFILE
@@ -218,7 +218,7 @@ cat > "$TABLEFILE" <<FuNkYfMgRtAbStUfF
FuNkYfMgRtAbStUfF
$AWK '{ print "extern Datum", $(NF-1), "(PG_FUNCTION_ARGS);"; }' $RAWFILE >> "$TABLEFILE"
$AWK '{ print "extern Datum", $(NF-1), "(PG_FUNCTION_ARGS);"; }' $RAWFILE >> "$$-$TABLEFILE"
if [ $? -ne 0 ]; then
cleanup
@@ -227,7 +227,7 @@ if [ $? -ne 0 ]; then
fi
cat >> "$TABLEFILE" <<FuNkYfMgRtAbStUfF
cat >> "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
const FmgrBuiltin fmgr_builtins[] = {
FuNkYfMgRtAbStUfF
@@ -244,7 +244,7 @@ $AWK 'BEGIN {
}
{ printf (" { %d, \"%s\", %d, %s, %s, %s },\n"), \
$1, $(NF-1), $9, Strict[$8], OldStyle[$4], $(NF-1)
}' $RAWFILE >> "$TABLEFILE"
}' $RAWFILE >> "$$-$TABLEFILE"
if [ $? -ne 0 ]; then
cleanup
@@ -252,7 +252,7 @@ if [ $? -ne 0 ]; then
exit 1
fi
cat >> "$TABLEFILE" <<FuNkYfMgRtAbStUfF
cat >> "$$-$TABLEFILE" <<FuNkYfMgRtAbStUfF
/* dummy entry is easier than getting rid of comma after last real one */
/* (not that there has ever been anything wrong with *having* a
comma after the last field in an array initializer) */
@@ -264,5 +264,10 @@ const int fmgr_nbuiltins = (sizeof(fmgr_builtins) / sizeof(FmgrBuiltin)) - 1;
FuNkYfMgRtAbStUfF
# We use the temporary files to avoid problems with concurrent runs
# (which can happen during parallel make).
mv "$$-$OIDSFILE" $OIDSFILE
mv "$$-$TABLEFILE" $TABLEFILE
cleanup
exit 0