Source code for trinity.buffer.utils

import time
from contextlib import contextmanager

from trinity.utils.log import get_logger




@contextmanager
def retry_session(session_maker, max_retry_times: int, max_retry_interval: float):
    """A Context manager for retrying session."""
    logger = get_logger(__name__)
    for attempt in range(max_retry_times):
        try:
            session = session_maker()
            yield session
            session.commit()
            break
        except StopIteration as e:
            raise e
        except Exception as e:
            import traceback

            trace_str = traceback.format_exc()
            session.rollback()
            logger.warning(
                f"Attempt {attempt + 1} failed, retrying in {max_retry_interval} seconds..."
            )
            logger.warning(f"trace = {trace_str}")
            if attempt < max_retry_times - 1:
                time.sleep(max_retry_interval)
            else:
                logger.error("Max retry attempts reached, raising exception.")
                raise e
        finally:
            session.close()