414   BufferOutputStream os(buffer, buffer_size);  in async_safe_format_buffer_va_list()  local
415   out_vformat(os, format, args);  in async_safe_format_buffer_va_list()
416   return os.total;  in async_safe_format_buffer_va_list()
428   FdOutputStream os(fd);  in async_safe_format_fd_va_list()  local
429   out_vformat(os, format, args);  in async_safe_format_fd_va_list()
430   return os.total;  in async_safe_format_fd_va_list()
526   BufferOutputStream os(buffer, sizeof(buffer));  in async_safe_format_log_va_list()  local
527   out_vformat(os, format, args);  in async_safe_format_log_va_list()
541   BufferOutputStream os(msg, sizeof(msg));  in async_safe_fatal_va_list()  local
544     os.Send(prefix, strlen(prefix));  in async_safe_fatal_va_list()
545     os.Send(": ", 2);  in async_safe_fatal_va_list()
548   out_vformat(os, format, args);  in async_safe_fatal_va_list()