Function write_data

src/test/objectstore/test_bluefs.cc:323–357

#define ALLOC_SIZE 4096

void write_data(BlueFS &fs, uint64_t rationed_bytes)
{
    int j=0, r=0;
    uint64_t written_bytes = 0;
    rationed_bytes -= ALLOC_SIZE;
    stringstream ss;
    string dir = "dir.";
    ss << std::this_thread::get_id();
    dir.append(ss.str());
    dir.append(".");
    dir.append(to_string(j));
    ASSERT_EQ(0, fs.mkdir(dir));
    while (1) {
      string file = "file.";
      file.append(to_string(j));
      BlueFS::FileWriter *h;
      ASSERT_EQ(0, fs.open_for_write(dir, file, &h, false));
      ASSERT_NE(nullptr, h);
      auto sg = make_scope_guard([&fs, h] { fs.close_writer(h); });
      bufferlist bl;
      std::unique_ptr<char[]> buf = gen_buffer(ALLOC_SIZE);
      bufferptr bp = buffer::claim_char(ALLOC_SIZE, buf.get());
      bl.push_back(bp);
      h->append(bl.c_str(), bl.length());
      r = fs.fsync(h);
      if (r < 0) {
         break;
      }
      written_bytes += g_conf()->bluefs_alloc_size;
      j++;
      if ((rationed_bytes - written_bytes) <= g_conf()->bluefs_alloc_size) {
        break;
      }
    }
}

void create_single_file(BlueFS &fs)
{