/Users/deen/code/yugabyte-db/src/yb/rpc/rpc_util.cc
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1 | | // Copyright (c) YugaByte, Inc. |
2 | | // |
3 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
4 | | // in compliance with the License. You may obtain a copy of the License at |
5 | | // |
6 | | // http://www.apache.org/licenses/LICENSE-2.0 |
7 | | // |
8 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
9 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
10 | | // or implied. See the License for the specific language governing permissions and limitations |
11 | | // under the License. |
12 | | // |
13 | | |
14 | | #include "yb/rpc/rpc_util.h" |
15 | | |
16 | | #include "yb/util/size_literals.h" |
17 | | |
18 | | namespace yb { |
19 | | namespace rpc { |
20 | | |
21 | 24.5k | Slice GetGlobalSkipBuffer() { |
22 | 24.5k | #if (!defined(THREAD_SANITIZER)) |
23 | | // It is OK to write concurrently into this buffer, since we use it for skipping data in case of |
24 | | // hitting memory limits and never read from it. |
25 | 24.5k | static uint8_t global_skip_buffer[1_MB]; |
26 | | #else |
27 | | // But for TSAN we use thread_local variant to avoid false positives. We don't use TSAN |
28 | | // suppression here because of significant slowdown due to detecting race, preparing report and |
29 | | // then suppressing it. |
30 | | static thread_local uint8_t global_skip_buffer[1_MB]; |
31 | | #endif // (!defined(THREAD_SANITIZER)) |
32 | | |
33 | 24.5k | return Slice(global_skip_buffer, sizeof(global_skip_buffer)); |
34 | 24.5k | } |
35 | | |
36 | | } // namespace rpc |
37 | | } // namespace yb |