Add example of a faulty distlock

Author: csuarez

cli.php

@@ -43,7 +43,7 @@
 $app->command('simple:lock', function (OutputInterface $output, Factory $factory) {
     $resource = new UnsafeSharedResource('very-important-thing');
 
-    $lock = $factory->createLock('simple:lock');
+    $lock = $factory->createLock('simple:lock', 10);
 
     do {
         $lock->acquire(true);
@@ -57,6 +57,29 @@
 });
 
 
+
+$app->command('simple:distlockerror', function (OutputInterface $output, Factory $factory) {
+    $resource = new UnsafeSharedResource('very-important-thing');
+
+    $lock = $factory->createLock('simple:lock', 10);
+
+    do {
+        $lock->acquire(true);
+
+        if ((rand(0, 1000) % 1000) === 0) {
+            throw new \Exception('bye bye!');
+        }
+
+        try {
+            $value = $resource->increase();
+            $output->writeln($value);
+        } finally {
+            $lock->release();
+        }
+    } while(true);
+});
+
+
 $app->command('barrier', function (OutputInterface $output, Factory $factory) {
     $processes = new UnsafeSharedResource('processes');
     $barrierFlag = new UnsafeSharedResource('barrier');

composer.json

@@ -18,17 +18,26 @@
         ],
         "run:simple-lock": [
             "docker-compose exec -T app pm2 delete all || true",
+            "docker-compose exec -T redis redis-cli flushall",
             "docker-compose exec -T app php /app/cli.php resource:reset very-important-thing",
             "docker-compose exec -T app pm2 start /app/pm2/simple-lock.yml"
         ],
+        "run:faulty-lock": [
+            "docker-compose exec -T app pm2 delete all || true",
+            "docker-compose exec -T redis redis-cli flushall",
+            "docker-compose exec -T app php /app/cli.php resource:reset very-important-thing",
+            "docker-compose exec -T app pm2 start /app/pm2/simple-distlockerror.yml"
+        ],
         "run:barrier": [
             "docker-compose exec -T app pm2 delete all || true",
+            "docker-compose exec -T redis redis-cli flushall",
             "docker-compose exec -T app php /app/cli.php resource:reset barrier",
             "docker-compose exec -T app php /app/cli.php resource:reset processes",
             "docker-compose exec -T app pm2 start /app/pm2/barrier.yml"
         ],
         "run:rw": [
             "docker-compose exec -T app pm2 delete all || true",
+            "docker-compose exec -T redis redis-cli flushall",
             "docker-compose exec -T app php /app/cli.php resource:reset very-important-thing",
             "docker-compose exec -T app php /app/cli.php resource:reset readers",
             "docker-compose exec -T app pm2 start /app/pm2/read-write.yml"