[GitHub] [arrow] kou commented on a diff in pull request #13373: ARROW-16717: [C++] Add support for system jemalloc

[GitBox <gi...@apache.org>]

kou commented on code in PR #13373:
URL: https://github.com/apache/arrow/pull/13373#discussion_r898564677


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cpp/src/arrow/memory_pool_jemalloc.cc:
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@@ -0,0 +1,154 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+#include "arrow/memory_pool_internal.h"
+#include "arrow/util/logging.h"  // IWYU pragma: keep
+
+// We can't put the jemalloc memory pool implementation into
+// memory_pool.c because jemalloc.h may redefine malloc() and its
+// family by macros. It malloc() and its family are redefined by
+// jemalloc, our system memory pool also uses jemalloc's malloc() and
+// its family.

Review Comment:
   Thanks!



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