open-jfr.sh

open-jfr.sh

#!/bin/bash

mkdir -p /tmp/lock/
LOCKFILE="/tmp/lock/`basename $0`"
LOCKFD=99

_lock()             { flock -$1 $LOCKFD; }
_no_more_locking()  { _lock u; _lock xn && rm -f $LOCKFILE; }
_prepare_locking()  { eval "exec $LOCKFD>\"$LOCKFILE\""; trap _no_more_locking EXIT; }

_prepare_locking

exlock()            { _lock x; }   # obtain an exclusive lock
unlock()            { _lock u; }   # drop a lock

if [ "$#" -eq 0 ]; then
    echo "Usage: $0 <filename>"
    exit 1
fi

converter_path="/tmp/converter.jar"
exlock # Locking in order to wait for converter download.
if ! [ -f "$converter_path" ]; then
    curl "https://github.com/jvm-profiling-tools/async-profiler/releases/download/v3.0/converter.jar" -L > $converter_path
fi
unlock

path=$1

echo "$path.itimer.html"
java -cp $converter_path jfr2flame --input $path --output $path.itimer.html
echo "$path.lock.html"
java -cp $converter_path jfr2flame --input $path --output $path.lock.html --lock
echo "$path.alloc.html"
java -cp $converter_path jfr2flame --input $path --output $path.alloc.html --alloc