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deps/easy/src/util/easy_util.c

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+/**
+ * Copyright (c) 2021 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 "util/easy_util.h"
+
+static char* parray(char* buf, int64_t len, int64_t* array, int size)
+{
+  int64_t pos = 0;
+  int64_t count = 0;
+  int64_t i = 0;
+  for (i = 0; i < size; i++) {
+    count = snprintf(buf + pos, len - pos, "0x%lx ", array[i]);
+    if (count >= 0 && pos + count + 1 < len) {
+      pos += count;
+    } else {
+      break;
+    }
+  }
+  buf[pos + 1] = 0;
+  return buf;
+}
+
+const char* easy_lbt()
+{
+  static __thread void* addrs[100];
+  static __thread char buf[1024];
+  int size = backtrace(addrs, 100);
+  return parray(buf, sizeof(buf), (int64_t*)addrs, size);
+}