Exiting entire bash script from subshell

I'm a bit new to bash scripting, I have a C++ program communicating back and forth with this bash script through some named pipes. I used inotifywait to watch a folder for new files and when a new file is added (ending in .job) sending it to through the pipe.

I'm having the C++ program pipe back the result, and if the result is 'quit', I want to bash script to quit execution.

I was trying to accomplish this with exit 1 as seen below, but that doesn't seem to exit the entire script. Instead after that exit is ran, when I drop another file in the watch folder the script ends.

I read a bit about subshells, and am wondering if this has something to do with them and any suggestions on how to exit the entire script.

DROP_FOLDER="$1"
DATA_FOLDER="$2"
OUTPUT_FOLDER="$3"
PATH_TO_EXECS="./tmp/"
PATH_TO_COMPLETED="../completed/"

# create pipes
read_pipe=/tmp/c_to_bash
write_pipe=/tmp/bash_to_c

if [[ ! -p $read_pipe ]]; then
    mkfifo $read_pipe
fi

if [[ ! -p $write_pipe ]]; then
    mkfifo $write_pipe
fi

# start c++ program 
./tmp/v2 $DATA_FOLDER $OUTPUT_FOLDER $PATH_TO_EXECS "${write_pipe}" "${read_pipe}" &


# watch drop folder
inotifywait -m $DROP_FOLDER -e create -e moved_to |
    while read path action file; do
        # ends in .tga
        if [[ "$file" =~ .*tga$ ]]; then 

            # move to image dir
            mv "${DROP_FOLDER}${file}" "${DATA_FOLDER}${file}" 
        fi
        
        # ends in .job
        if [[ "$file" =~ .*job$ ]]; then
            # pipe to dispatcher 
            echo "${DROP_FOLDER}${file}" > $write_pipe

            # wait for result from pipe
            if read line <$read_pipe; then
                echo $line
                # check for quit result
                if [[ "$line" == 'quit' ]]; then
                    # move job file to completed
                    mv "${DROP_FOLDER}${file}" "${PATH_TO_COMPLETED}${file}"
                    # exit
                    exit 1
                fi

                # check for continue result
                if [[ "$line" == 'continue' ]]; then
                    # move job file to completed
                    mv "${DROP_FOLDER}${file}" "${PATH_TO_COMPLETED}${file}"
                fi
            fi
        fi
    done