mirror of
https://github.com/theroyallab/tabbyAPI.git
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2961c5f3f9
Works the same way as streaming gens. If the request is cancelled, it will log an error to the user and release the semaphore if it's holding anything. Signed-off-by: kingbri <bdashore3@proton.me>
121 lines
2.9 KiB
Python
121 lines
2.9 KiB
Python
"""Common utility functions"""
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import asyncio
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import socket
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import traceback
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from fastapi import Request
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from loguru import logger
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from pydantic import BaseModel
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from typing import Optional
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from common.concurrency import release_semaphore
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def load_progress(module, modules):
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"""Wrapper callback for load progress."""
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yield module, modules
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class TabbyRequestErrorMessage(BaseModel):
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"""Common request error type."""
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message: str
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trace: Optional[str] = None
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class TabbyRequestError(BaseModel):
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"""Common request error type."""
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error: TabbyRequestErrorMessage
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def get_generator_error(message: str, exc_info: bool = True):
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"""Get a generator error."""
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generator_error = handle_request_error(message)
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return generator_error.model_dump_json()
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def handle_request_error(message: str, exc_info: bool = True):
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"""Log a request error to the console."""
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error_message = TabbyRequestErrorMessage(
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message=message, trace=traceback.format_exc()
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)
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request_error = TabbyRequestError(error=error_message)
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# Log the error and provided message to the console
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if error_message.trace and exc_info:
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logger.error(error_message.trace)
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logger.error(f"Sent to request: {message}")
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return request_error
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def handle_request_disconnect(message: str):
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"""Wrapper for handling for request disconnection."""
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release_semaphore()
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logger.error(message)
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async def request_disconnect_loop(request: Request):
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"""Polls for a starlette request disconnect."""
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while not await request.is_disconnected():
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await asyncio.sleep(0.5)
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async def run_with_request_disconnect(
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request: Request, call_task: asyncio.Task, disconnect_message: str
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):
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"""Utility function to cancel if a request is disconnected."""
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_, unfinished = await asyncio.wait(
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[
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call_task,
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asyncio.create_task(request_disconnect_loop(request)),
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],
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return_when=asyncio.FIRST_COMPLETED,
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)
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for task in unfinished:
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task.cancel()
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try:
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return call_task.result()
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except (asyncio.CancelledError, asyncio.InvalidStateError):
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handle_request_disconnect(disconnect_message)
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def unwrap(wrapped, default=None):
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"""Unwrap function for Optionals."""
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if wrapped is None:
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return default
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return wrapped
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def coalesce(*args):
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"""Coalesce function for multiple unwraps."""
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return next((arg for arg in args if arg is not None), None)
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def prune_dict(input_dict):
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"""Trim out instances of None from a dictionary"""
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return {k: v for k, v in input_dict.items() if v is not None}
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def is_port_in_use(port: int) -> bool:
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"""
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Checks if a port is in use
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From https://stackoverflow.com/questions/2470971/fast-way-to-test-if-a-port-is-in-use-using-python
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"""
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with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
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return s.connect_ex(("localhost", port)) == 0
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