test: cleanup of License Plate detection

runtime/experiments/applications/licenseplate/.gitignore

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+flower.jpg

runtime/experiments/applications/licenseplate/README.md

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+# License Plate Detection
+
+Draws a magenta bounding box around license plates located in an image.
+
+The first request seems to succeed, but subsequent requests crash out due to a socket error.
+
+```
+write: Bad file descriptor
+C: 05, T: 0x7f3412232700, F: current_sandbox_main>
+        Unable to build and send client response
+
+C: 05, T: 0x7f3412232700, F: client_socket_send>
+        Error sending to client: Bad file descriptor
+C: 05, T: 0x7f3412232700, F: sandbox_close_http> PANIC!
+        Bad file descriptor
+find: ‘result_23619.jpg’: No such file or directory
+```

runtime/experiments/applications/licenseplate/debug.sh

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+#!/bin/bash
+# Executes the runtime in GDB
+# Substitutes the absolute path from the container with a path relatively derived from the location of this script
+# This allows debugging outside of the Docker container
+# Also disables pagination and stopping on SIGUSR1
+
+experiment_directory=$(pwd)
+project_directory=$(cd ../../.. && pwd)
+binary_directory=$(cd "$project_directory"/bin && pwd)
+
+export LD_LIBRARY_PATH="$binary_directory:$LD_LIBRARY_PATH"
+export PATH="$binary_directory:$PATH"
+
+gdb --eval-command="handle SIGUSR1 nostop" \
+  --eval-command="handle SIGPIPE nostop" \
+  --eval-command="set pagination off" \
+  --eval-command="set substitute-path /sledge/runtime $project_directory" \
+  --eval-command="run $experiment_directory/spec.json" \
+  sledgert

runtime/experiments/applications/licenseplate/run.sh

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+#!/bin/bash
+# Executes the runtime in GDB
+# Substitutes the absolute path from the container with a path relatively derived from the location of this script
+# This allows debugging outside of the Docker container
+# Also disables pagination and stopping on SIGUSR1
+
+experiment_directory=$(pwd)
+project_directory=$(cd ../../.. && pwd)
+binary_directory=$(cd "$project_directory"/bin && pwd)
+
+# Copy License Plate Image if not here
+if [[ ! -f "./plate.jpg" ]]; then
+  cp ../../../tests/sod/bin/plate.jpg ./plate.jpg
+fi
+
+if [ "$1" != "-d" ]; then
+  PATH="$binary_directory:$PATH" LD_LIBRARY_PATH="$binary_directory:$LD_LIBRARY_PATH" sledgert "$experiment_directory/spec.json" &
+  sleep 1
+else
+  echo "Running under gdb"
+fi
+
+expected_size="$(find expected_result.jpg -printf "%s")"
+success_count=0
+total_count=50
+
+for ((i = 0; i < total_count; i++)); do
+  echo "$i"
+  ext="$RANDOM"
+  curl -H 'Expect:' -H "Content-Type: image/jpg" --data-binary "@plate.jpg" --output "result_$ext.jpg" localhost:10000 2>/dev/null
+  actual_size="$(find result_"$ext".jpg -printf "%s")"
+
+  # echo "$result"
+  if [[ "$expected_size" == "$actual_size" ]]; then
+    echo "SUCCESS $success_count"
+  else
+    echo "FAIL"
+    echo "Expected Size:"
+    echo "$expected_size"
+    echo "==============================================="
+    echo "Actual Size:"
+    echo "$actual_size"
+  fi
+done
+
+echo "$success_count / $total_count"
+
+if [ "$1" != "-d" ]; then
+  sleep 5
+  echo -n "Running Cleanup: "
+  rm result_*.jpg
+  pkill sledgert >/dev/null 2>/dev/null
+  echo "[DONE]"
+fi

runtime/experiments/applications/licenseplate/spec.json

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+{
+  "active": "yes",
+  "name": "lpd",
+  "path": "lpd_wasm.so",
+  "port": 10000,
+  "relative-deadline-us": 50000,
+  "argsize": 1,
+  "http-req-headers": [],
+  "http-req-content-type": "image/jpeg",
+  "http-req-size": 102400,
+  "http-resp-headers": [],
+  "http-resp-size": 1048576,
+  "http-resp-content-type": "image/jpeg"
+}