Merge pull request #3120 from pipecat-ai/aleix/function-calls-wait-for-all

allow waiting for all function calls to complete
This commit is contained in:
Aleix Conchillo Flaqué
2025-12-01 18:35:53 -08:00
committed by GitHub
5 changed files with 76 additions and 42 deletions

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@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
## [Unreleased]
### Added
- Added `wait_for_all` argument to the base `LLMService`. When enabled, this
ensures all function calls complete before returning results to the LLM (i.e.,
before running a new inference with those results).
### Changed
- Updated `AICFilter` to use Quail STT as the default model

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@@ -14,20 +14,13 @@ from loguru import logger
from pipecat.adapters.schemas.function_schema import FunctionSchema
from pipecat.adapters.schemas.tools_schema import ToolsSchema
from pipecat.adapters.services.open_ai_realtime_adapter import OpenAIRealtimeLLMAdapter
from pipecat.audio.vad.silero import SileroVADAnalyzer
from pipecat.frames.frames import (
LLMRunFrame,
LLMSetToolsFrame,
LLMUpdateSettingsFrame,
TranscriptionMessage,
)
from pipecat.frames.frames import LLMRunFrame, LLMSetToolsFrame, TranscriptionMessage
from pipecat.observers.loggers.transcription_log_observer import TranscriptionLogObserver
from pipecat.pipeline.pipeline import Pipeline
from pipecat.pipeline.runner import PipelineRunner
from pipecat.pipeline.task import PipelineParams, PipelineTask
from pipecat.processors.aggregators.llm_context import LLMContext
from pipecat.processors.aggregators.llm_response import LLMAssistantAggregatorParams
from pipecat.processors.aggregators.llm_response_universal import LLMContextAggregatorPair
from pipecat.processors.transcript_processor import TranscriptProcessor
from pipecat.runner.types import RunnerArguments

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@@ -19,7 +19,6 @@ from pipecat.pipeline.pipeline import Pipeline
from pipecat.pipeline.runner import PipelineRunner
from pipecat.pipeline.task import PipelineParams, PipelineTask
from pipecat.processors.aggregators.llm_context import LLMContext
from pipecat.processors.aggregators.llm_response import LLMAssistantAggregatorParams
from pipecat.processors.aggregators.llm_response_universal import LLMContextAggregatorPair
from pipecat.runner.types import RunnerArguments
from pipecat.runner.utils import create_transport

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@@ -166,20 +166,24 @@ class LLMService(AIService):
# However, subclasses should override this with a more specific adapter when necessary.
adapter_class: Type[BaseLLMAdapter] = OpenAILLMAdapter
def __init__(self, run_in_parallel: bool = True, **kwargs):
def __init__(self, run_in_parallel: bool = True, wait_for_all: bool = False, **kwargs):
"""Initialize the LLM service.
Args:
run_in_parallel: Whether to run function calls in parallel or sequentially.
Defaults to True.
wait_for_all: Whether to wait for all function calls (parallel or
sequential) to complete. Defaults to False.
**kwargs: Additional arguments passed to the parent AIService.
"""
super().__init__(**kwargs)
self._run_in_parallel = run_in_parallel
self._wait_for_all = wait_for_all
self._start_callbacks = {}
self._adapter = self.adapter_class()
self._functions: Dict[Optional[str], FunctionCallRegistryItem] = {}
self._function_call_tasks: Dict[asyncio.Task, FunctionCallRunnerItem] = {}
self._function_call_tasks: Dict[Optional[asyncio.Task], FunctionCallRunnerItem] = {}
self._sequential_runner_task: Optional[asyncio.Task] = None
self._tracing_enabled: bool = False
self._skip_tts: bool = False
@@ -435,6 +439,7 @@ class LLMService(AIService):
await self.broadcast_frame(FunctionCallsStartedFrame, function_calls=function_calls)
runner_items = []
for function_call in function_calls:
if function_call.function_name in self._functions.keys():
item = self._functions[function_call.function_name]
@@ -446,28 +451,20 @@ class LLMService(AIService):
)
continue
runner_item = FunctionCallRunnerItem(
registry_item=item,
function_name=function_call.function_name,
tool_call_id=function_call.tool_call_id,
arguments=function_call.arguments,
context=function_call.context,
runner_items.append(
FunctionCallRunnerItem(
registry_item=item,
function_name=function_call.function_name,
tool_call_id=function_call.tool_call_id,
arguments=function_call.arguments,
context=function_call.context,
)
)
if self._run_in_parallel:
task = self.create_task(self._run_function_call(runner_item))
self._function_call_tasks[task] = runner_item
task.add_done_callback(self._function_call_task_finished)
else:
await self._sequential_runner_queue.put(runner_item)
async def _call_start_function(
self, context: OpenAILLMContext | LLMContext, function_name: str
):
if function_name in self._start_callbacks.keys():
await self._start_callbacks[function_name](function_name, self, context)
elif None in self._start_callbacks.keys():
return await self._start_callbacks[None](function_name, self, context)
if self._run_in_parallel:
await self._run_parallel_function_calls(runner_items)
else:
await self._run_sequential_function_calls(runner_items)
async def request_image_frame(
self,
@@ -540,6 +537,46 @@ class LLMService(AIService):
await task
del self._function_call_tasks[task]
async def _run_parallel_function_calls(self, runner_items: Sequence[FunctionCallRunnerItem]):
tasks = []
for runner_item in runner_items:
task = self.create_task(self._run_function_call(runner_item))
tasks.append(task)
self._function_call_tasks[task] = runner_item
task.add_done_callback(self._function_call_task_finished)
if self._wait_for_all:
# Protect gather from being cancelled. This will protect all tasks
# form being cancelled. That is fine, because we cancel them
# explicitly when handling the interruption (InterruptionFrame). We
# need to set `return_exceptions=True` because `asyncio.shield()`
# will get cancelled (from FrameProcessor process task), then
# `asyncio.gather()` will keep running (because it was protected by
# the shield). Then, individiaul function call tasks will be
# cancelled by us and we don't need to propagate those
# CancelledErrors at that point.
await asyncio.shield(asyncio.gather(*tasks, return_exceptions=True))
async def _run_sequential_function_calls(self, runner_items: Sequence[FunctionCallRunnerItem]):
if self._wait_for_all:
# Run each function call sequentially, waiting for each to complete.
for runner_item in runner_items:
self._function_call_tasks[None] = runner_item
await self._run_function_call(runner_item)
del self._function_call_tasks[None]
else:
# Enqueue all function calls for background execution.
for runner_item in runner_items:
await self._sequential_runner_queue.put(runner_item)
async def _call_start_function(
self, context: OpenAILLMContext | LLMContext, function_name: str
):
if function_name in self._start_callbacks.keys():
await self._start_callbacks[function_name](function_name, self, context)
elif None in self._start_callbacks.keys():
return await self._start_callbacks[None](function_name, self, context)
async def _run_function_call(self, runner_item: FunctionCallRunnerItem):
if runner_item.function_name in self._functions.keys():
item = self._functions[runner_item.function_name]
@@ -623,20 +660,19 @@ class LLMService(AIService):
name = runner_item.function_name
tool_call_id = runner_item.tool_call_id
# We remove the callback because we are going to cancel the task
# now, otherwise we will be removing it from the set while we
# are iterating.
task.remove_done_callback(self._function_call_task_finished)
logger.debug(f"{self} Cancelling function call [{name}:{tool_call_id}]...")
await self.cancel_task(task)
if task:
# We remove the callback because we are going to cancel the
# task next, otherwise we will be removing it from the set
# while we are iterating.
task.remove_done_callback(self._function_call_task_finished)
await self.cancel_task(task)
cancelled_tasks.add(task)
frame = FunctionCallCancelFrame(function_name=name, tool_call_id=tool_call_id)
await self.push_frame(frame)
cancelled_tasks.add(task)
logger.debug(f"{self} Function call [{name}:{tool_call_id}] has been cancelled")
# Remove all cancelled tasks from our set.

6
uv.lock generated
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@@ -36,12 +36,12 @@ wheels = [
[[package]]
name = "aic-sdk"
version = "1.1.0"
version = "1.2.0"
source = { registry = "https://pypi.org/simple" }
dependencies = [
{ name = "numpy" },
]
sdist = { url = "https://files.pythonhosted.org/packages/99/83/bf38b95d98c67b8ebc574fb4a4f23c07a3740b51992d7522976173d30b98/aic_sdk-1.1.0.tar.gz", hash = "sha256:04e08df695581c8cb4db8acca20e73815e9f449e7bd08e0162fd55518c727963", size = 34954, upload-time = "2025-11-11T20:45:24.25Z" }
sdist = { url = "https://files.pythonhosted.org/packages/f9/ba/3ebe31b91e03d42437ec864e9d2af3a52b7ccc73a1a0c1026275956270b0/aic_sdk-1.2.0.tar.gz", hash = "sha256:eeda9a181c679f175dbe6f0efc0c67ec98ff3d84cfe01541fef7fa12ecd505ca", size = 35606, upload-time = "2025-11-20T14:42:14.333Z" }
[[package]]
name = "aioboto3"
@@ -4666,7 +4666,7 @@ docs = [
[package.metadata]
requires-dist = [
{ name = "accelerate", marker = "extra == 'moondream'", specifier = "~=1.10.0" },
{ name = "aic-sdk", marker = "extra == 'aic'", specifier = "~=1.1.0" },
{ name = "aic-sdk", marker = "extra == 'aic'", specifier = "~=1.2.0" },
{ name = "aioboto3", marker = "extra == 'aws'", specifier = "~=15.5.0" },
{ name = "aiofiles", specifier = ">=24.1.0,<25" },
{ name = "aiohttp", specifier = ">=3.11.12,<4" },