#!/bin/bash -

if [ "$1" = "-h" -o "$1" = "--help" ]; then
    printf "Usage: $0 number_of_runs time_limit_in_seconds\n";
    exit;
fi

PWD=`pwd`;
DIR=`basename $PWD`;

if [ "_$DIR" != "_userprog" ] ; then
    printf "You must be in userprog directory\n";
    exit;
fi

if expr $(uname -s) : 'Linux.*' > /dev/null; then
    MAKE=make
else
    MAKE=gmake
fi

$MAKE
$MAKE -C ../examples
TIMES=$(grep TIMES ../examples/pfs.h)
EXECS=$(grep -c '^.*exec.*pfs_reader.*$' ../examples/pfs.c)

declare -i COUNT=${1:-1}

TIMEOUT=${2:-180}

declare -i i=0;

while (( i < ${COUNT} )); do
    
    \rm -f messages;
    
    pintos -v -k --fs-disk=2 -T ${TIMEOUT} --qemu -p ../examples/pfs -a pfs -p ../examples/pfs_writer -a pfs_writer -p ../examples/pfs_reader -a pfs_reader -g messages -- -f -q run pfs
    
    COOL=$(grep -c '^cool$' messages)
    HOT=$(grep -v '^cool$' messages | grep -v -c '^\0*$')
    
    grep -v '^cool$' messages

    printf "\nSUMMARY ------------------------------------------------------\n"
    printf "The 'messages' file have ${COOL} lines with the word 'cool'.\n"
    printf "The 'messages' file have ${HOT} lines with other content.\n"
    printf "pfs.c executes ${EXECS} 'pfs_reader' processes concurrently.\n"
    printf "pfs.h contain: ${TIMES}\n"
    printf "What should be in 'messages' when everything is correct?\n"
    printf "%s\n" "--------------------------------------------------------------"

    sleep 5

    let ++i;
done