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#!/bin/bash
#
# Copyright (C) 2015 by Michael Olbrich <mol@pengutronix.de>
#
# See CREDITS for details about who has contributed to this project.
#
# For further information about the PTXdist project and license conditions
# see the README file.
#
ptxd_make_serialize_take() {
local readptr="ptxd_make_serialize_${pkg_stage}_readfd"
local tmp
if [ -n "${!readptr}" ]; then
read -n 1 -u "${!readptr}" tmp
fi
}
export -f ptxd_make_serialize_take
ptxd_make_serialize_put() {
local ret=$?
local fifo="${PTXDIST_TEMPDIR}/${pkg_stage}-fifo"
if [ -e "${fifo}" ]; then
echo -n '+' > "${fifo}"
fi
return "${ret}"
}
export -f ptxd_make_serialize_put
ptxd_make_serialize_setup() {
local name="${1}"
local count="${2}"
local fifo="${PTXDIST_TEMPDIR}/${name}-fifo"
local writeptr="ptxd_make_serialize_${name}_writefd"
local readptr="ptxd_make_serialize_${name}_readfd"
local writefd readfd
mkfifo "${fifo}" || return
echo -n "$(seq -s "+" 0 ${count} | sed 's/[^+]//g')" > "${fifo}" &
exec {readfd}< "${fifo}" &&
exec {writefd}> "${fifo}" &&
eval "${readptr}"="${readfd}" &&
eval "${writeptr}"="${writefd}" &&
export "${readptr}" "${writeptr}"
}
export -f ptxd_make_serialize_setup
ptxd_make_serialize_init() {
local num="${PTXDIST_PARALLELMFLAGS#-j}"
local sync mflags jobserver
if [ -n "${num}" ]; then
ptxd_make_serialize_setup global "${num}" || return
sync="${PTXDIST_OUTPUT_SYNC:+${PTXDIST_OUTPUT_SYNC}recurse}"
jobserver="--jobserver-auth"
if ! "${PTXCONF_SETUP_HOST_MAKE}" ${jobserver}=42,43 --help >& /dev/null; then
jobserver="-j --jobserver-fds"
fi
mflags="${jobserver}=${ptxd_make_serialize_global_readfd},${ptxd_make_serialize_global_writefd}"
PTXDIST_PARALLELMFLAGS_INTERN="${sync} ${mflags}"
PTXDIST_PARALLELMFLAGS_EXTERN="${sync} ${mflags}"
PTXDIST_JOBSERVER_FLAGS="${mflags}"
PTXDIST_PARALLEL_FLAGS="${PTXDIST_PARALLELMFLAGS}"
else
PTXDIST_JOBSERVER_FLAGS=
PTXDIST_PARALLEL_FLAGS="${PTXDIST_PARALLELMFLAGS_INTERN}"
case "${PTXDIST_PARALLELMFLAGS_INTERN}" in
-j1) ;;
*)
sync="${PTXDIST_OUTPUT_SYNC:+${PTXDIST_OUTPUT_SYNC}target --no-print-directory}"
PTXDIST_PARALLELMFLAGS_INTERN="${PTXDIST_PARALLELMFLAGS_INTERN} ${sync}" ;;
esac
fi
export PTXDIST_JOBSERVER_FLAGS PTXDIST_PARALLEL_FLAGS
ptxd_make_serialize_setup get 4 &&
ptxd_make_serialize_setup extract 2
}
ptxd_make_serialize_init
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