rocksdb/test_util/testharness.cc
Jay Zhuang 9418403c4b Unittest uses unique test db name (#8124)
Summary:
thread_id is only unique within a process. If we run the same test-set with multiple processes, it could cause db path collision between 2 runs, error message will be like:
```
...
IO error: While lock file: /tmp/rocksdbtest-501//deletefile_test_8093137327721791717/LOCK: Resource temporarily unavailable
...
```
This is could be likely reproduced by:
```
gtest-parallel ./deletefile_test --gtest_filter=DeleteFileTest.BackgroundPurgeCFDropTest -r 1000 -w 1000
```

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8124

Reviewed By: ajkr

Differential Revision: D27435195

Pulled By: jay-zhuang

fbshipit-source-id: 850fc72cdb660edf93be9a1ca9327008c16dd720
2021-03-30 16:51:26 -07:00

65 lines
1.8 KiB
C++

// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "test_util/testharness.h"
#include <string>
#include <thread>
namespace ROCKSDB_NAMESPACE {
namespace test {
#ifdef OS_WIN
#include <windows.h>
std::string GetPidStr() { return std::to_string(GetCurrentProcessId()); }
#else
std::string GetPidStr() { return std::to_string(getpid()); }
#endif
::testing::AssertionResult AssertStatus(const char* s_expr, const Status& s) {
if (s.ok()) {
return ::testing::AssertionSuccess();
} else {
return ::testing::AssertionFailure() << s_expr << std::endl
<< s.ToString();
}
}
std::string TmpDir(Env* env) {
std::string dir;
Status s = env->GetTestDirectory(&dir);
EXPECT_OK(s);
return dir;
}
std::string PerThreadDBPath(std::string dir, std::string name) {
size_t tid = std::hash<std::thread::id>()(std::this_thread::get_id());
return dir + "/" + name + "_" + GetPidStr() + "_" + std::to_string(tid);
}
std::string PerThreadDBPath(std::string name) {
return PerThreadDBPath(test::TmpDir(), name);
}
std::string PerThreadDBPath(Env* env, std::string name) {
return PerThreadDBPath(test::TmpDir(env), name);
}
int RandomSeed() {
const char* env = getenv("TEST_RANDOM_SEED");
int result = (env != nullptr ? atoi(env) : 301);
if (result <= 0) {
result = 301;
}
return result;
}
} // namespace test
} // namespace ROCKSDB_NAMESPACE