INNER CODE UNIT · Python

_open_file_with_retry

lebinh/ngxtop · ngxtop/ngxtop.py:204

def _open_file_with_retry(file_path, max_retries):
    """
    Open file with retry logic, handling temporary file absence during rotation.
    Returns (file_handle, inode, size) or (None, None, 0) if failed.
    """
    for attempt in range(max_retries):
        try:
            file_stat = os.stat(file_path)
            f = open(file_path, 'r')
            return f, file_stat.st_ino, file_stat.st_size
            
        except (OSError, IOError) as e:
            if attempt < max_retries - 1:
                # Wait with exponential backoff: 0.1, 0.2, 0.4, 0.8, 1.6 seconds
                wait_time = 0.1 * (2 ** attempt)
                logging.warning(f"Failed to open {file_path} (attempt {attempt + 1}/{max_retries}): {e}. Retrying in {wait_time}s...")
                time.sleep(wait_time)
            else:

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