diff options
Diffstat (limited to 'src/leveldb/helpers')
-rw-r--r-- | src/leveldb/helpers/memenv/memenv.cc | 13 | ||||
-rw-r--r-- | src/leveldb/helpers/memenv/memenv_test.cc | 13 |
2 files changed, 24 insertions, 2 deletions
diff --git a/src/leveldb/helpers/memenv/memenv.cc b/src/leveldb/helpers/memenv/memenv.cc index 43ef2e0729..9a98884daf 100644 --- a/src/leveldb/helpers/memenv/memenv.cc +++ b/src/leveldb/helpers/memenv/memenv.cc @@ -277,6 +277,19 @@ class InMemoryEnv : public EnvWrapper { return Status::OK(); } + virtual Status NewAppendableFile(const std::string& fname, + WritableFile** result) { + MutexLock lock(&mutex_); + FileState** sptr = &file_map_[fname]; + FileState* file = *sptr; + if (file == NULL) { + file = new FileState(); + file->Ref(); + } + *result = new WritableFileImpl(file); + return Status::OK(); + } + virtual bool FileExists(const std::string& fname) { MutexLock lock(&mutex_); return file_map_.find(fname) != file_map_.end(); diff --git a/src/leveldb/helpers/memenv/memenv_test.cc b/src/leveldb/helpers/memenv/memenv_test.cc index a44310fed8..5cff77613f 100644 --- a/src/leveldb/helpers/memenv/memenv_test.cc +++ b/src/leveldb/helpers/memenv/memenv_test.cc @@ -40,6 +40,8 @@ TEST(MemEnvTest, Basics) { // Create a file. ASSERT_OK(env_->NewWritableFile("/dir/f", &writable_file)); + ASSERT_OK(env_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(0, file_size); delete writable_file; // Check that the file exists. @@ -55,9 +57,16 @@ TEST(MemEnvTest, Basics) { ASSERT_OK(writable_file->Append("abc")); delete writable_file; - // Check for expected size. + // Check that append works. + ASSERT_OK(env_->NewAppendableFile("/dir/f", &writable_file)); ASSERT_OK(env_->GetFileSize("/dir/f", &file_size)); ASSERT_EQ(3, file_size); + ASSERT_OK(writable_file->Append("hello")); + delete writable_file; + + // Check for expected size. + ASSERT_OK(env_->GetFileSize("/dir/f", &file_size)); + ASSERT_EQ(8, file_size); // Check that renaming works. ASSERT_TRUE(!env_->RenameFile("/dir/non_existent", "/dir/g").ok()); @@ -65,7 +74,7 @@ TEST(MemEnvTest, Basics) { ASSERT_TRUE(!env_->FileExists("/dir/f")); ASSERT_TRUE(env_->FileExists("/dir/g")); ASSERT_OK(env_->GetFileSize("/dir/g", &file_size)); - ASSERT_EQ(3, file_size); + ASSERT_EQ(8, file_size); // Check that opening non-existent file fails. SequentialFile* seq_file; |