#! /bin/sh

if [ x$MXDIR = x ]; then
	MXDIR=/opt/mx
fi

# Try to figure out where EPICS is installed.

if [ x$MX_EPICS_DIR != x ]; then
	# Accept the existing value of MX_EPICS_DIR.
	true
elif [ -d /opt/epics/base ]; then
	MX_EPICS_DIR=/opt/epics/base
elif [ -d /usr/lib/epics ]; then
	MX_EPICS_DIR=/usr/lib/epics
else
	echo "Unknown EPICS Base directory!"
fi

# Try to figure out which CPU architecture this is.

uname_machine=`uname -m`

if [ x$MX_EPICS_ARCH != x ]; then
	# Accept the existing value of MX_EPICS_ARCH.
	true
elif [ ${uname_machine} = i686 ]; then
	MX_EPICS_ARCH=linux-x86
elif [ ${uname_machine} = x86_64 ]; then
	MX_EPICS_ARCH=linux-x86_64
elif [ x$EPICS_HOST_ARCH != x ]; then
	MX_EPICS_ARCH=${EPICS_HOST_ARCH}
else
	echo "Unknown EPICS architecture!"
	exit 1
fi

# Add in the MX and EPICS library directories to the library search path.

MXCA_SERVER=${MXDIR}/sbin/mxca_server

# For Linux, BSD, Solaris, etc.

if [ x$LD_LIBRARY_PATH = x ]; then
	LD_LIBRARY_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}"
else
	LD_LIBRARY_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}:${LD_LIBRARY_PATH}"
fi

# For Mac OS X

if [ x$DYLD_LIBRARY_PATH = x ]; then
	DYLD_LIBRARY_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}"
else
	DYLD_LIBRARY_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}:${DYLD_LIBRARY_PATH}"
fi

# For HP/UX

if [ x$SHLIB_PATH = x ]; then
	SHLIB_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}"
else
	SHLIB_PATH="${MXDIR}/lib:${MX_EPICS_DIR}/lib/${MX_EPICS_ARCH}:${SHLIB_PATH}"
fi

# Try to run the MX Channel Access server.

export MXDIR LD_LIBRARY_PATH DYLD_LIBRARY_PATH SHLIB_PATH

if [ -x $MXCA_SERVER ]; then
	cd ${MXDIR}/run

	echo $$ > ${MXDIR}/run/mxca_server.pid

	exec $MXCA_SERVER ${MXDIR}/etc/mxca_server.dat \
		${MXDIR}/etc/mxca_server.acl $* 
fi