patch 4.0

2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
--- a/src/sql/engine/expr/ob_expr_random_bytes.cpp
+++ b/src/sql/engine/expr/ob_expr_random_bytes.cpp
@ -0,0 +1,137 @@
+/**
+ * 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.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+
+#include "sql/engine/expr/ob_expr_random_bytes.h"
+
+#include <openssl/rand.h>
+
+namespace oceanbase
+{
+using namespace common;
+
+namespace sql
+{
+
+ObExprRandomBytes::ObExprRandomBytes(ObIAllocator &alloc)
+    : ObFuncExprOperator(alloc, T_FUN_SYS_RANDOM_BYTES, N_RANDOM_BYTES, 1, NOT_ROW_DIMENSION)
+{
+}
+
+ObExprRandomBytes::~ObExprRandomBytes()
+{
+}
+
+int ObExprRandomBytes::calc_result_type1(ObExprResType &type, 
+                                         ObExprResType &len,
+                                         ObExprTypeCtx &type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(type_ctx);
+  len.set_calc_type(ObInt32Type);
+  static const int64_t MAX_RAND_BYTES = 1024;
+  type.set_varbinary();
+  type.set_collation_type(CS_TYPE_BINARY);
+  type.set_length(MAX_RAND_BYTES);
+  return ret;
+}
+
+int ObExprRandomBytes::calc_result1(ObObj &result, const ObObj &len,
+                                    ObExprCtx &expr_ctx) const
+{
+  int ret = OB_SUCCESS;
+  if (len.is_null()) {
+    result.set_null();
+  } else if (len.is_int32()) {
+    ObString::obstr_size_t length = len.get_int32(); 
+    if (length >= 1 && length <= 1024) {
+      char *buf = (char *)expr_ctx.calc_buf_->alloc(length);
+      if (OB_ISNULL(buf)) {
+        ret = OB_ALLOCATE_MEMORY_FAILED;
+        LOG_WARN("allocate memory failed", K(ret), K(length));
+      } else {
+        RAND_bytes((unsigned char*)buf, length);
+        ObString rand_str(length, length, buf);
+        result.set_binary(rand_str);
+      }
+    } else {
+      ret = OB_ERR_ARGUMENT_OUT_OF_RANGE;
+      LOG_WARN("length value is out of range in random_bytes", 
+                K(ret), K(length));
+    }
+  } else {
+    ret = OB_OBJ_TYPE_ERROR;
+    LOG_WARN("invalid argument type for random_bytes", 
+             K(ret));
+  }
+  return ret;
+}
+
+int ObExprRandomBytes::generate_random_bytes(const ObExpr &expr, ObEvalCtx &ctx, 
+                                             ObDatum &expr_datum)
+{
+  int ret = OB_SUCCESS;
+  if (ObInt32Type == expr.args_[0]->datum_meta_.type_) {
+    ObDatum *num_datum = NULL;
+    if (OB_FAIL(expr.args_[0]->eval(ctx, num_datum))) {
+      LOG_WARN("eval param value failed", K(ret));
+    } else if (num_datum->is_null()) {
+      expr_datum.set_null();
+    } else {
+      ObString::obstr_size_t length = num_datum->get_int32();
+      if (length >= 1 && length <= 1024) {
+        char *buf = (char *)expr.get_str_res_mem(ctx, length);
+        if (OB_ISNULL(buf)) {
+          ret = OB_ALLOCATE_MEMORY_FAILED;
+          LOG_WARN("allocate memory failed", K(ret), K(length));
+        } else {
+          RAND_bytes((unsigned char*)buf, length);
+          ObString rand_str(length, length, buf);
+          expr_datum.set_string(rand_str);
+        }
+      } else { 
+        ret = OB_ERR_ARGUMENT_OUT_OF_RANGE;
+        LOG_WARN("length value is out of range in random_bytes", 
+                  K(ret), K(length));
+      }
+    }
+  } else {
+    ret  = OB_OBJ_TYPE_ERROR;
+    LOG_WARN("invalid argument type for random_bytes", 
+                K(ret));
+  }
+  
+  return ret;
+}
+
+int ObExprRandomBytes::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
+                               ObExpr &rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  if (rt_expr.arg_cnt_ != 1) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("Incorrect parameter count in the call to native function random_bytes", 
+              K(ret), K(rt_expr.arg_cnt_));
+  } else if (OB_ISNULL(rt_expr.args_) || OB_ISNULL(rt_expr.args_[0])) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("children of random_bytes expr is null", K(ret), K(rt_expr.args_));
+  } else {
+    rt_expr.eval_func_ = ObExprRandomBytes::generate_random_bytes;
+  }
+  return ret;
+}
+
+} // sql
+} // oceanbase