Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 131 insertions, 0 deletions

diff --git a/src/test/erasure-code/TestErasureCodePlugin.cc b/src/test/erasure-code/TestErasureCodePlugin.cc
new file mode 100644
index 000000000..e396d9467
--- /dev/null
+++ b/src/test/erasure-code/TestErasureCodePlugin.cc
@@ -0,0 +1,131 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- 
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph distributed storage system
+ *
+ * Copyright (C) 2013,2014 Cloudwatt <libre.licensing@cloudwatt.com>
+ * Copyright (C) 2014 Red Hat <contact@redhat.com>
+ *
+ * Author: Loic Dachary <loic@dachary.org>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2.1 of the License, or (at your option) any later version.
+ * 
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <stdlib.h>
+#include "common/Thread.h"
+#include "erasure-code/ErasureCodePlugin.h"
+#include "global/global_context.h"
+#include "common/config_proxy.h"
+#include "gtest/gtest.h"
+
+using namespace std;
+
+class ErasureCodePluginRegistryTest : public ::testing::Test {};
+
+TEST_F(ErasureCodePluginRegistryTest, factory_mutex) {
+  ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
+
+  {
+    unique_lock l{instance.lock, std::try_to_lock};
+    EXPECT_TRUE(l.owns_lock());
+  }
+  // 
+  // Test that the loading of a plugin is protected by a mutex.
+
+  std::thread sleep_for_10_secs([] {
+    ErasureCodeProfile profile;
+    ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
+    ErasureCodeInterfaceRef erasure_code;
+    instance.factory("hangs",
+		     g_conf().get_val<std::string>("erasure_code_dir"),
+		     profile, &erasure_code, &cerr);
+  });
+  auto wait_until = [&instance](bool loading, unsigned max_secs) {
+    auto delay = 0ms;
+    const auto DELAY_MAX = std::chrono::seconds(max_secs);
+    for (; delay < DELAY_MAX; delay = (delay + 1ms) * 2) {
+      cout << "Trying (1) with delay " << delay << "us\n";
+      if (delay.count() > 0) {
+	std::this_thread::sleep_for(delay);
+      }
+      if (instance.loading == loading) {
+	return true;
+      }
+    }
+    return false;
+  };
+  // should be loading in 5 seconds
+  ASSERT_TRUE(wait_until(true, 5));
+  {
+    unique_lock l{instance.lock, std::try_to_lock};
+    EXPECT_TRUE(!l.owns_lock());
+  }
+  // should finish loading in 15 seconds
+  ASSERT_TRUE(wait_until(false, 15));
+  {
+    unique_lock l{instance.lock, std::try_to_lock};
+    EXPECT_TRUE(l.owns_lock());
+  }
+  sleep_for_10_secs.join();
+}
+
+TEST_F(ErasureCodePluginRegistryTest, all)
+{
+  ErasureCodeProfile profile;
+  string directory = g_conf().get_val<std::string>("erasure_code_dir");
+  ErasureCodeInterfaceRef erasure_code;
+  ErasureCodePluginRegistry &instance = ErasureCodePluginRegistry::instance();
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(-EIO, instance.factory("invalid",
+				   g_conf().get_val<std::string>("erasure_code_dir"),
+				   profile, &erasure_code, &cerr));
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(-EXDEV, instance.factory("missing_version",
+				     g_conf().get_val<std::string>("erasure_code_dir"),
+				     profile,
+				     &erasure_code, &cerr));
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(-ENOENT, instance.factory("missing_entry_point",
+				      g_conf().get_val<std::string>("erasure_code_dir"),
+				      profile,
+				      &erasure_code, &cerr));
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(-ESRCH, instance.factory("fail_to_initialize",
+				     g_conf().get_val<std::string>("erasure_code_dir"),
+				     profile,
+				     &erasure_code, &cerr));
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(-EBADF, instance.factory("fail_to_register",
+				     g_conf().get_val<std::string>("erasure_code_dir"),
+				     profile,
+				     &erasure_code, &cerr));
+  EXPECT_FALSE(erasure_code);
+  EXPECT_EQ(0, instance.factory("example",
+				g_conf().get_val<std::string>("erasure_code_dir"),
+				profile, &erasure_code, &cerr));
+  EXPECT_TRUE(erasure_code.get());
+  ErasureCodePlugin *plugin = 0;
+  {
+    std::lock_guard l{instance.lock};
+    EXPECT_EQ(-EEXIST, instance.load("example", directory, &plugin, &cerr));
+    EXPECT_EQ(-ENOENT, instance.remove("does not exist"));
+    EXPECT_EQ(0, instance.remove("example"));
+    EXPECT_EQ(0, instance.load("example", directory, &plugin, &cerr));
+  }
+}
+
+/*
+ * Local Variables:
+ * compile-command: "cd ../../../build ; make -j4 &&
+ *   make unittest_erasure_code_plugin && 
+ *   valgrind --tool=memcheck \
+ *      ./bin/unittest_erasure_code_plugin \
+ *      --gtest_filter=*.* --log-to-stderr=true --debug-osd=20"
+ * End:
+ */