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gaboshlib/g_calc.sh aktualisiert

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olli 2023-11-07 13:18:32 +01:00
parent 3e981f64dd
commit c335791caa
1 changed files with 18 additions and 9 deletions
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27
gaboshlib/g_calc.sh
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@ -1,6 +1,5 @@
function g_calc { function g_calc {
# Use bc in backround for multiple bc's running much faster # Use bc in backround for multiple bc's running much faster
if [ -z "${g_bc_running}" ] if [ -z "${g_bc_running}" ]
then then
@ -12,31 +11,41 @@ function g_calc {
[ -p ${g_tmp}/${g_rnd}/bc-sed-out ] || mkfifo ${g_tmp}/${g_rnd}/bc-sed-out [ -p ${g_tmp}/${g_rnd}/bc-sed-out ] || mkfifo ${g_tmp}/${g_rnd}/bc-sed-out
# bc stream channel # bc stream channel
bc -ql <${g_tmp}/${g_rnd}/bc-in >${g_tmp}/${g_rnd}/bc-out & { bc -ql <${g_tmp}/${g_rnd}/bc-in 2>&1 >${g_tmp}/${g_rnd}/bc-out & } 2>/dev/null
exec 3>${g_tmp}/${g_rnd}/bc-in 4<${g_tmp}/${g_rnd}/bc-out exec 3>${g_tmp}/${g_rnd}/bc-in 4<${g_tmp}/${g_rnd}/bc-out
# sed stream channel # sed stream channel
sed -su 's/^\./0./; s/^-\./-0./' <${g_tmp}/${g_rnd}/bc-sed-in >${g_tmp}/${g_rnd}/bc-sed-out & { sed -su 's/^\./0./; s/^-\./-0./' <${g_tmp}/${g_rnd}/bc-sed-in >${g_tmp}/${g_rnd}/bc-sed-out & } 2>/dev/null
exec 5>${g_tmp}/${g_rnd}/bc-sed-in 6<${g_tmp}/${g_rnd}/bc-sed-out exec 5>${g_tmp}/${g_rnd}/bc-sed-in 6<${g_tmp}/${g_rnd}/bc-sed-out
g_bc_running="true" g_bc_running="true"
fi 2>/dev/null fi
# do bc # do bc
echo "scale=8; $@" >&3 echo "scale=8; $@" >&3
local g_bc_out local g_bc_out
if ! read -t 0 g_bc_out <&4 if ! read -t 0.1 g_bc_out <&4
then then
g_traceback g_traceback "$@"
( exec 3<&- ) 2>/dev/null
( exec 4<&- ) 2>/dev/null
( exec 5<&- ) 2>/dev/null
( exec 6<&- ) 2>/dev/null
unset g_bc_running
return 1 return 1
fi fi
# do sed # do sed
echo ${g_bc_out} >&5 echo ${g_bc_out} >&5
local g_sed_out local g_sed_out
if ! read -t 0 g_sed_out <&6 if ! read -t 0.1 g_sed_out <&6
then then
g_traceback g_traceback "$@"
( exec 3<&- ) 2>/dev/null
( exec 4<&- ) 2>/dev/null
( exec 5<&- ) 2>/dev/null
( exec 6<&- ) 2>/dev/null
unset g_bc_running
return 1 return 1
fi fi