#!/bin/sh -
#	$Id$
#
# Build the automatically generated function prototype files.

msgc="/* DO NOT EDIT: automatically built by dist/s_include. */"

. ./RELEASE

AWK=${AWK:-awk}
head()
{
	defonly=0
	while :
		do case "$1" in
		space)
			echo ""; shift;;
		defonly)
			defonly=1; shift;;
		*)
			name="$1"; break;;
		esac
	done

	echo "$msgc"
	echo "#ifndef	$name"
	echo "#define	$name"
	echo ""
	if [ $defonly -eq 0 ]; then
		echo "#if defined(__cplusplus)"
		echo "extern \"C\" {"
		echo "#endif"
		echo ""
	fi
}

tail()
{
	defonly=0
	while :
		do case "$1" in
		defonly)
			defonly=1; shift;;
		*)
			name="$1"; break;;
		esac
	done

	echo ""
	if [ $defonly -eq 0 ]; then
		echo "#if defined(__cplusplus)"
		echo "}"
		echo "#endif"
	fi
	echo "#endif /* !$name */"
}

# This script is run on a variety of systems.  To avoid spurious changes, fix
# some variables that affect sort order of ls(1).
unset LANG
export LANG
LC_ALL="C"
export LC_ALL

# We are building several files:
#	1 external #define file
#	1 external prototype file
#	1 internal #define file
#	N internal prototype files
e_dfile=/tmp/__db_c.$$
e_pfile=/tmp/__db_a.$$
i_dfile=/tmp/__db_d.$$
i_pfile=/tmp/__db_b.$$
trap 'rm -f $e_dfile $e_pfile $i_dfile $i_pfile; exit 0' 0 1 2 3 13 15

head defonly space _DB_EXT_DEF_IN_ > $e_dfile
head space _DB_EXT_PROT_IN_ > $e_pfile
head defonly _DB_INT_DEF_IN_ > $i_dfile

# Process the standard directories, creating per-directory prototype
# files and adding to the external prototype and #define files.
for i in db btree clib common crypto dbreg env fileops hash heap \
    hmac lock log mp mutex os qam rep repmgr sequence tcl txn xa; do
	head "_${i}_ext_h_" > $i_pfile

	if [ $i = os ] ; then
		f=`ls ../src/$i/*.c \
	    ../src/os_qnx/*.c ../src/os_vxworks/*.c ../src/os_windows/*.c`
	elif [ $i = crypto ] ; then
		f=`ls ../src/$i/*.c ../src/$i/*/*.c`
	elif [ $i = env ] ; then
		f=`ls ../src/$i/*.c ../src/repmgr/repmgr_stub.c`
	elif [ $i = tcl ] ; then
		f=`ls ../lang/$i/*.c`
	else
		f=`ls ../src/$i/*.c`
	fi
	$AWK -f gen_inc.awk \
	    -v db_version_unique_name=$DB_VERSION_UNIQUE_NAME \
	    -v e_dfile=$e_dfile \
	    -v e_pfile=$e_pfile \
	    -v i_dfile=$i_dfile \
	    -v i_pfile=$i_pfile $f

	tail "_${i}_ext_h_" >> $i_pfile

	f=../src/dbinc_auto/${i}_ext.h
	cmp $i_pfile $f > /dev/null 2>&1 ||
	    (echo "Building $f" && rm -f $f && cp $i_pfile $f)
done

# Process directories which only add to the external prototype and #define
# files.
for i in dbm hsearch; do
	f=`ls ../lang/$i/*.c`
	$AWK -f gen_inc.awk \
	    -v db_version_unique_name=$DB_VERSION_UNIQUE_NAME \
	    -v e_dfile=$e_dfile \
	    -v e_pfile=$e_pfile \
	    -v i_dfile="" \
	    -v i_pfile="" $f
done

# There are a few global variables in DB -- add them to the external/internal
# #define files.
(echo "#define	__db_global_values __db_global_values@DB_VERSION_UNIQUE_NAME@";
 echo "#define	__repmgr_guesstimated_max __repmgr_guesstimated_max@DB_VERSION_UNIQUE_NAME@";
 echo "#define	db_xa_switch db_xa_switch@DB_VERSION_UNIQUE_NAME@"
 ) >> $i_dfile

# Wrap up the external #defines/prototypes, and internal #defines.
tail defonly _DB_EXT_DEF_IN_ >> $e_dfile
f=../src/dbinc_auto/ext_def.in
cmp $e_dfile $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $e_dfile $f)

tail _DB_EXT_PROT_IN_ >> $e_pfile
f=../src/dbinc_auto/ext_prot.in
cmp $e_pfile $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $e_pfile $f)

tail defonly _DB_INT_DEF_IN_ >> $i_dfile
f=../src/dbinc_auto/int_def.in
cmp $i_dfile $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $i_dfile $f)

# DB185 compatibility support.
head space defonly _DB_EXT_185_DEF_IN_ > $e_dfile
head space _DB_EXT_185_PROT_IN_ > $e_pfile

f=`ls ../lang/db185/*.c`
$AWK -f gen_inc.awk \
    -v db_version_unique_name=$DB_VERSION_UNIQUE_NAME \
    -v e_dfile=$e_dfile \
    -v e_pfile=$e_pfile \
    -v i_dfile="" \
    -v i_pfile="" $f

tail defonly _DB_EXT_185_DEF_IN_ >> $e_dfile
f=../src/dbinc_auto/ext_185_def.in
cmp $e_dfile $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $e_dfile $f)

tail _DB_EXT_185_PROT_IN_ >> $e_pfile
f=../src/dbinc_auto/ext_185_prot.in
cmp $e_pfile $f > /dev/null 2>&1 ||
    (echo "Building $f" && rm -f $f && cp $e_pfile $f)

# Make the DTrace provider description file from events.in
rm -f db_provider.d
(echo "/*"; \
 echo " * DO NOT EDIT: automatically built by dist/s_include."; \
 echo " * Oracle Berkeley DB DTrace Provider"; \
 echo " */"; \
perl gen_provider.pl events.in)  > db_provider.d