c3b020a155
* Allows waiting until all spans are "assigned" or "unassigned" * Current implementation use a polling loop with sleep * Future implementation may block on sysfs attribute (like waitfor_xpds is blocking on sysfs Astribanks attribute) Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com> Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>
74 lines
1.2 KiB
Bash
Executable File
74 lines
1.2 KiB
Bash
Executable File
#! /bin/sh
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usage() {
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echo >&2 "Usage: $0 {assigned|unassigned}"
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echo >&2 "# wait until all spans known are assigned/unassigned"
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exit 1
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}
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TIMEOUT=5 # How much time to wait for spans
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if [ "$#" -lt 1 ]; then
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usage
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fi
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wanted_event="$1"
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shift
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case "$wanted_event" in
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assigned)
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;;
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unassigned)
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;;
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*)
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usage
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;;
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esac
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devbase='/sys/bus/dahdi_devices/devices'
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spans_of() {
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dev="$1"
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wc -l < "$dev/spantype"
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}
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assigned_spans_of() {
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dev="$1"
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ls -d "$dev/span-"* 2>/dev/null | wc -l
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}
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waitfor_span_assignments() {
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wanted_state="$1"
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device_list=`ls -d "$devbase/"* 2> /dev/null`
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finished=''
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count="$TIMEOUT"
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echo -n "Waiting for spans to become $wanted_state: "
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while [ "$count" -gt 0 ]; do
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finished='yes'
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for dev in $device_list
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do
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spans=`spans_of "$dev"`
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assigned_spans=`assigned_spans_of "$dev"`
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if [ "$wanted_state" = 'assigned' -a "$assigned_spans" -ne "$spans" ]; then
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finished='no'
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elif [ "$wanted_state" = 'unassigned' -a "$assigned_spans" -ne 0 ]; then
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finished='no'
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fi
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done
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if [ "$finished" = 'yes' ]; then
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break
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else
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sleep 1
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echo -n "."
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fi
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count=`expr "$count" - 1`
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done
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if [ "$finished" = 'yes' ]; then
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echo "done"
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else
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echo "timeout"
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fi
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}
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waitfor_span_assignments "$wanted_event"
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