1 files changed, 214 insertions, 0 deletions
diff --git a/fluent-bit/lib/librdkafka-2.1.0/tests/0116-kafkaconsumer_close.cpp b/fluent-bit/lib/librdkafka-2.1.0/tests/0116-kafkaconsumer_close.cpp
new file mode 100644
index 00000000..c674d444
--- /dev/null
+++ b/fluent-bit/lib/librdkafka-2.1.0/tests/0116-kafkaconsumer_close.cpp
@@ -0,0 +1,214 @@
+/*
+ * librdkafka - Apache Kafka C library
+ *
+ * Copyright (c) 2020, Magnus Edenhill
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <iostream>
+#include <map>
+#include <cstring>
+#include <cstdlib>
+#include "testcpp.h"
+extern "C" {
+#include "test.h"
+#include "tinycthread.h"
+#include "rdatomic.h"
+}
+
+/**
+ * Test KafkaConsumer close and destructor behaviour.
+ */
+
+
+struct args {
+  RdKafka::Queue *queue;
+  RdKafka::KafkaConsumer *c;
+};
+
+static int run_polling_thread(void *p) {
+  struct args *args = (struct args *)p;
+
+  while (!args->c->closed()) {
+    RdKafka::Message *msg;
+
+    /* We use a long timeout to also verify that the
+     * consume() call is yielded/woken by librdkafka
+     * when consumer_close_queue() finishes. */
+    msg = args->queue->consume(60 * 1000 /*60s*/);
+    if (msg)
+      delete msg;
+  }
+
+  return 0;
+}
+
+
+static void start_polling_thread(thrd_t *thrd, struct args *args) {
+  if (thrd_create(thrd, run_polling_thread, (void *)args) != thrd_success)
+    Test::Fail("Failed to create thread");
+}
+
+static void stop_polling_thread(thrd_t thrd, struct args *args) {
+  int ret;
+  if (thrd_join(thrd, &ret) != thrd_success)
+    Test::Fail("Thread join failed");
+}
+
+
+static void do_test_consumer_close(bool do_subscribe,
+                                   bool do_unsubscribe,
+                                   bool do_close,
+                                   bool with_queue) {
+  std::string testname = tostr()
+                         << "Test C++ KafkaConsumer close "
+                         << "subscribe=" << do_subscribe
+                         << ", unsubscribe=" << do_unsubscribe
+                         << ", close=" << do_close << ", queue=" << with_queue;
+  SUB_TEST("%s", testname.c_str());
+
+  rd_kafka_mock_cluster_t *mcluster;
+  const char *bootstraps;
+
+  mcluster = test_mock_cluster_new(3, &bootstraps);
+
+  std::string errstr;
+
+  /*
+   * Produce messages to topics
+   */
+  const int msgs_per_partition = 10;
+  RdKafka::Conf *pconf;
+  Test::conf_init(&pconf, NULL, 10);
+  Test::conf_set(pconf, "bootstrap.servers", bootstraps);
+  RdKafka::Producer *p = RdKafka::Producer::create(pconf, errstr);
+  if (!p)
+    Test::Fail(tostr() << __FUNCTION__
+                       << ": Failed to create producer: " << errstr);
+  delete pconf;
+  Test::produce_msgs(p, "some_topic", 0, msgs_per_partition, 10,
+                     true /*flush*/);
+  delete p;
+
+  /* Create consumer */
+  RdKafka::Conf *conf;
+  Test::conf_init(&conf, NULL, 0);
+  Test::conf_set(conf, "bootstrap.servers", bootstraps);
+  Test::conf_set(conf, "group.id", "mygroup");
+  Test::conf_set(conf, "auto.offset.reset", "beginning");
+
+  RdKafka::KafkaConsumer *c = RdKafka::KafkaConsumer::create(conf, errstr);
+  if (!c)
+    Test::Fail("Failed to create KafkaConsumer: " + errstr);
+  delete conf;
+
+  if (do_subscribe) {
+    std::vector<std::string> topics;
+    topics.push_back("some_topic");
+    RdKafka::ErrorCode err;
+    if ((err = c->subscribe(topics)))
+      Test::Fail("subscribe failed: " + RdKafka::err2str(err));
+  }
+
+  int received = 0;
+  while (received < msgs_per_partition) {
+    RdKafka::Message *msg = c->consume(500);
+    if (msg) {
+      ++received;
+      delete msg;
+    }
+  }
+
+  RdKafka::ErrorCode err;
+  if (do_unsubscribe)
+    if ((err = c->unsubscribe()))
+      Test::Fail("unsubscribe failed: " + RdKafka::err2str(err));
+
+  if (do_close) {
+    if (with_queue) {
+      RdKafka::Queue *queue = RdKafka::Queue::create(c);
+      struct args args      = {queue, c};
+      thrd_t thrd;
+
+      /* Serve queue in background thread until close() is done */
+      start_polling_thread(&thrd, &args);
+
+      RdKafka::Error *error;
+
+      Test::Say("Closing with queue\n");
+      if ((error = c->close(queue)))
+        Test::Fail("close(queue) failed: " + error->str());
+
+      stop_polling_thread(thrd, &args);
+
+      Test::Say("Attempting second close\n");
+      /* A second call should fail */
+      if (!(error = c->close(queue)))
+        Test::Fail("Expected second close(queue) to fail");
+      if (error->code() != RdKafka::ERR__DESTROY)
+        Test::Fail("Expected second close(queue) to fail with DESTROY, not " +
+                   error->str());
+      delete error;
+
+      delete queue;
+
+    } else {
+      if ((err = c->close()))
+        Test::Fail("close failed: " + RdKafka::err2str(err));
+
+      /* A second call should fail */
+      if ((err = c->close()) != RdKafka::ERR__DESTROY)
+        Test::Fail("Expected second close to fail with DESTROY, not " +
+                   RdKafka::err2str(err));
+    }
+  }
+
+  /* Call an async method that will do nothing but verify that we're not
+   * crashing due to use-after-free. */
+  if ((err = c->commitAsync()))
+    Test::Fail("Expected commitAsync close to succeed, got " +
+               RdKafka::err2str(err));
+
+  delete c;
+
+  test_mock_cluster_destroy(mcluster);
+
+  SUB_TEST_PASS();
+}
+
+extern "C" {
+int main_0116_kafkaconsumer_close(int argc, char **argv) {
+  /* Parameters:
+   *  subscribe, unsubscribe, close, with_queue */
+  for (int i = 0; i < 1 << 4; i++) {
+    bool subscribe   = i & (1 << 0);
+    bool unsubscribe = i & (1 << 1);
+    bool do_close    = i & (1 << 2);
+    bool with_queue  = i & (1 << 3);
+    do_test_consumer_close(subscribe, unsubscribe, do_close, with_queue);
+  }
+
+  return 0;
+}
+}