// be used within RemoveFile_Locked after `it` is deleted.
      RemoveFile_Locked(std::string(it->first.first));
    }
  }
}

void RamFileBlockCache::Flush() {
  absl::MutexLock lock(&mu_);
  block_map_.clear();
  lru_list_.clear();
  lra_list_.clear();
  cache_size_ = 0;
}

void RamFileBlockCache::RemoveFile(const std::string& filename) {
  absl::MutexLock lock(&mu_);

  bool ValidateAndUpdateFileSignature(const std::string& filename,
                                      int64_t file_signature)
      ABSL_LOCKS_EXCLUDED(mu_);

  /// Remove all cached blocks for `filename`.
  void RemoveFile(const std::string& filename) ABSL_LOCKS_EXCLUDED(mu_);

  /// Remove all cached data.
  void Flush() ABSL_LOCKS_EXCLUDED(mu_);

  /// Accessors for cache parameters.

  // used to satisfy the read.
  env->SetNowSeconds(365 * 24 * 60 * 60);  // ~1 year, just for fun.
  TF_EXPECT_OK(ReadCache(&cache2, "", 0, 1, &out));
  EXPECT_EQ(calls, 1);
}

TEST(RamFileBlockCacheTest, RemoveFile) {
  int calls = 0;
  auto fetcher = [&calls](const string& filename, size_t offset, size_t n,
                          char* buffer, TF_Status* status) -> int64_t {
    calls++;

    return false;
  }
  return true;
}

static void ClearFileCaches(GCSFile* gcs_file, const std::string& path) {
  absl::ReaderMutexLock l(&gcs_file->block_cache_lock);
  gcs_file->file_block_cache->RemoveFile(path);
  gcs_file->stat_cache->Delete(path);
}

void PathExists(const TF_Filesystem* filesystem, const char* path,
                TF_Status* status) {
  std::string bucket, object;

pkg go/ast, type File struct, FileEnd token.Pos #53202
pkg go/ast, type File struct, FileStart token.Pos #53202
pkg go/ast, type RangeStmt struct, Range token.Pos #50429
pkg go/token, method (*FileSet) RemoveFile(*File) #53200
pkg go/types, func Satisfies(Type, *Interface) bool #56548
pkg io/fs, var SkipAll error #47209
pkg io, func NewOffsetWriter(WriterAt, int64) *OffsetWriter #45899