[OBCDC] various bug fix

unittest/libobcdc/CMakeLists.txt

@@ -29,3 +29,4 @@ libobcdc_unittest(test_ob_seq_thread)
 libobcdc_unittest(test_ob_cdc_part_trans_resolver)
 libobcdc_unittest(test_log_svr_blacklist)
 libobcdc_unittest(test_ob_cdc_sorted_list)
+libobcdc_unittest(test_ob_log_safe_arena)

unittest/libobcdc/test_ob_log_safe_arena.cpp

@@ -0,0 +1,70 @@
+/**
+ * Copyright (c) 2023 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ */
+
+#include "lib/oblog/ob_log.h"
+#include <gtest/gtest.h>
+#include "ob_log_safe_arena.h"
+#include <thread>
+
+namespace oceanbase
+{
+namespace libobcdc
+{
+
+bool check_memset(const void *ptr, const char c, const int64_t size) {
+  bool bret = true;
+  const char *cptr = static_cast<const char*>(ptr);
+  for (int i = 0; bret && i < size; i++) {
+    if (cptr[i] != c) {
+      bret = false;
+    }
+  }
+  return bret;
+}
+
+TEST(ObLogSafeArena, test_ob_log_safe_arena)
+{
+  ObCdcSafeArena safe_arena;
+  const int64_t THREAD_NUM = 32;
+  std::vector<std::thread> threads;
+  auto alloc_test_func = [&](int idx) {
+    constexpr int64_t ALLOC_CNT = 1024;
+    constexpr int64_t ALLOC_SIZE = 1024;
+    ObRandom rand;
+    char c = static_cast<char>(idx & 0xFF);
+    for (int i = 0; i < ALLOC_CNT; i++) {
+      int64_t alloc_size = rand.get(1, ALLOC_SIZE);
+      void *ptr = safe_arena.alloc(alloc_size);
+      EXPECT_TRUE(NULL != ptr);
+      MEMSET(ptr, c, alloc_size);
+      EXPECT_TRUE(check_memset(ptr, c, alloc_size));
+    }
+  };
+  for (int i = 0; i < THREAD_NUM; i++) {
+    threads.emplace_back(std::thread(alloc_test_func, i));
+  }
+  for (int i = 0; i < THREAD_NUM; i++) {
+    threads[i].join();
+  }
+  safe_arena.clear();
+}
+
+} // namespace libobcdc
+} // ns oceanbase
+
+int main(int argc, char **argv)
+{
+  oceanbase::common::ObLogger::get_logger().set_log_level("DEBUG");
+  OB_LOGGER.set_log_level("DEBUG");
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}