#

# set -o errexit -o noglob are assumed.

#

ex_pkg_dispatch() {

	local _tgt_name="${1}" _pkg_name="${2}"			\

		_restart="${3}" _restart_at="${4}"		\

		_stdout_path _stderr_path			\

		_pipe_path _pipe_msg _script_rc=1;

	if ex_pkg_state_test "${_pkg_name}" finish		\

	&& [ -z "${_restart}" ]					\

	&& [ "${_tgt_name}" != "INVARIANTS" ]; then

		return 0;

	else

		_pipe_path="${WORKDIR}/${_pkg_name}_build.fifo";

		ex_build_fileop rm "${_pipe_path}"; mkfifo "${_pipe_path}";

		_stderr_path="${WORKDIR}/${_pkg_name}_stderr.log";

		_stdout_path="${WORKDIR}/${_pkg_name}_stdout.log";

		ex_build_fileop rm "${_stderr_path}" "${_stdout_path}";

	fi;

	(set -o errexit -o noglob;

	trap "if [ \${?} -eq 0 ]; then				\

		echo \"done ${PKG_NAME}\" >&3;			\

	      else						\

		echo \"fail ${PKG_NAME}\" >&3;			\

	      fi;" EXIT HUP INT TERM USR1 USR2;

	if [ "${ARG_XTRACE:-0}" -eq 1 ]; then

		set -o xtrace;

	fi;

	ex_pkg_vars;

	if [ "${PKG_DISABLED:-0}" -eq 1 ]; then

		ex_log_msg vnfo "Skipping disabled package \`${PKG_NAME}.'";

	else

		ex_pkg_env;

		ex_pkg_steps "${_tgt_name}" "${_pkg_name}"	\

			"${_restart}" "${_restart_at}";

	fi;)	1>"${_stdout_path}" 2>"${_stderr_path}"		\

		3>"${_pipe_path}" &

	while read _pipe_msg; do

	case "${_pipe_msg%% *}" in

	done)	_script_rc=0; break; ;;

	fail)	_script_rc=1; break; ;;

	*)	_script_rc=1; break; ;;

	esac; done <"${_pipe_path}";

	ex_build_fileop rm "${_pipe_path}";

	return "${_script_rc:-1}";

};

# vim:filetype=sh