33     std::string content;  in ReadFile()  local
36         if (content.size() - count < DEFAULT_READ_SIZE) {  in ReadFile()
37             content.resize(content.size() + DEFAULT_READ_SIZE);  in ReadFile()
39         ssize_t nBytes = TEMP_FAILURE_RETRY(read(fd, &content[count], content.size() - count));  in ReadFile()
48     content.resize(count);  in ReadFile()
49     return content;  in ReadFile()
65     std::string content = ReadFile(fd);  in ReadFile()  local
66     CHECK_TRUE(close(fd) != -1, content, "close %s failed, %d", path.c_str(), errno);  in ReadFile()
67     return content;  in ReadFile()
70 int FileUtils::WriteFile(const std::string& path, const std::string& content)  in WriteFile()  argument
72     return WriteFile(path, content, O_WRONLY);  in WriteFile()
75 int FileUtils::WriteFile(const std::string& path, const std::string& content, int flags)  in WriteFile()  argument
77     return WriteFile(path, content, flags, 0);  in WriteFile()
80 int FileUtils::WriteFile(const std::string& path, const std::string& content, int flags, int mode)  in WriteFile()  argument
101     int retval = write(fd, content.data(), content.size());  in WriteFile()