1  // Copyright 2017 The LevelDB Authors. All rights reserved.
 2  // Use of this source code is governed by a BSD-style license that can be
 3  // found in the LICENSE file. See the AUTHORS file for names of contributors.
 4  
 5  #ifndef STORAGE_LEVELDB_UTIL_ENV_POSIX_TEST_HELPER_H_
 6  #define STORAGE_LEVELDB_UTIL_ENV_POSIX_TEST_HELPER_H_
 7  
 8  namespace leveldb {
 9  
10  class EnvPosixTest;
11  
12  // A helper for the POSIX Env to facilitate testing.
13  class EnvPosixTestHelper {
14   private:
15    friend class EnvPosixTest;
16  
17    // Set the maximum number of read-only files that will be opened.
18    // Must be called before creating an Env.
19    static void SetReadOnlyFDLimit(int limit);
20  
21    // Set the maximum number of read-only files that will be mapped via mmap.
22    // Must be called before creating an Env.
23    static void SetReadOnlyMMapLimit(int limit);
24  };
25  
26  }  // namespace leveldb
27  
28  #endif  // STORAGE_LEVELDB_UTIL_ENV_POSIX_TEST_HELPER_H_