while IFS= read -r pid ; do
# /proc/pid/cmdline is null separated.
- if full_command_no_argument=$(cut -d '' -f 1 2>/dev/null < /proc/"$pid"/cmdline); then
+ if full_command_no_argument=$(tr '\0' '\n' < /proc/"$pid"/cmdline 2>/dev/null | head -n1); then
command_basename=$(basename "$full_command_no_argument")
if grep -q "$pattern" <<< "$command_basename"; then
echo "$pid"
echo
}
+# Helpers for get_possible_cpus.
+function get_possible_cpus_count_from_sysfs_possible_mask()
+{
+ local max_possible_cpu_id=$(cut -d '-' -f 2 < /sys/devices/system/cpu/possible)
+ echo $((max_possible_cpu_id+1))
+}
+
+function get_max_cpus_count_from_sysfs_cpu_directories()
+{
+ local max_possible_cpu_id= \
+ $(find /sys/devices/system/cpu/ -mindepth 1 -maxdepth 1 -regex ".+cpu[0-9]+" | \
+ sed -e 's/cpu//g' | \
+ awk -F '/' '{ if ($NF > N) N = $NF } END { print N }')
+ echo $((max_possible_cpu_id+1))
+}
+
+# Return the number of possible CPUs.
+function get_possible_cpus_count()
+{
+ local possible_cpus_count=$(get_possible_cpus_count_from_sysfs_possible_mask)
+
+ if [ $? -ne 0 ]; then
+ possible_cpus_count=$(get_max_cpus_count_from_sysfs_cpu_directories)
+ local configured_cpus_count=$(getconf _NPROCESSORS_CONF)
+ possible_cpus_count=$(($configured_cpus_count > $possible_cpus_count \
+ ? $configured_cpus_count \
+ : $possible_cpus_count))
+ fi
+
+ echo $possible_cpus_count
+}
+
# Return the number of _configured_ CPUs.
function conf_proc_count()
{