File: trace_pipe.tc

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: trace_pipe and trace_marker
# requires: trace_marker
# flags: instance

echo "test input 1" > trace_marker

: "trace interface never consume the ring buffer"
grep -q "test input 1" trace
grep -q "test input 1" trace

: "trace interface never consume the ring buffer"
head -n 1 trace_pipe | grep -q "test input 1"
! grep -q "test input 1" trace