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a1d8504 62404fa a1d8504 62404fa a1d8504 62404fa a1d8504 62404fa a1d8504 62404fa a1d8504 62404fa a1d8504 62404fa a1d8504 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | """Background task utilities used by agent session lifecycle."""
from __future__ import annotations
import asyncio
from time import monotonic
from typing import Any
from livekit.agents import AgentSession, llm
from livekit.agents.types import APIConnectOptions
from src.agent.models.llm_runtime import run_startup_greeting
from src.core.logger import logger
async def monitor_startup_greeting_handle(
greeting_handle: Any,
*,
timeout_sec: float = 0.0,
) -> None:
speech_id = getattr(greeting_handle, "id", None)
wait_for_playout = getattr(greeting_handle, "wait_for_playout", None)
interrupt = getattr(greeting_handle, "interrupt", None)
if not callable(wait_for_playout):
logger.warning(
"Startup greeting handle missing wait_for_playout; speech_id=%s",
speech_id,
)
return
try:
if timeout_sec <= 0:
await wait_for_playout()
else:
await asyncio.wait_for(wait_for_playout(), timeout=timeout_sec)
except TimeoutError:
logger.warning(
"MCP startup greeting timed out after %.2fs; interrupting speech_id=%s",
timeout_sec,
speech_id,
)
if callable(interrupt):
try:
interrupt(force=True)
except Exception as exc:
logger.warning("Failed to interrupt timed out startup greeting: %s", exc)
except asyncio.CancelledError:
if callable(interrupt):
try:
interrupt(force=True)
except Exception as exc:
logger.warning("Failed to interrupt cancelled startup greeting: %s", exc)
logger.info("MCP startup greeting monitor cancelled: speech_id=%s", speech_id)
except Exception as exc:
logger.warning("MCP startup greeting monitor failed: %s", exc)
def schedule_startup_greeting_task(
session: AgentSession,
*,
mcp_runtime_active: bool,
timeout_sec: float = 0.0,
) -> asyncio.Task[Any] | None:
greeting_handle = run_startup_greeting(
session,
mcp_runtime_active=mcp_runtime_active,
)
if greeting_handle is None:
return None
speech_id = getattr(greeting_handle, "id", None)
logger.info(
"Scheduling startup greeting monitor task: mcp_runtime_active=%s speech_id=%s timeout_sec=%.2f",
mcp_runtime_active,
speech_id,
timeout_sec,
)
task = asyncio.create_task(
monitor_startup_greeting_handle(greeting_handle, timeout_sec=timeout_sec),
name="startup-greeting-monitor",
)
setattr(task, "_open_voice_startup_greeting_handle", greeting_handle)
def _on_done(completed_task: asyncio.Task[Any]) -> None:
if completed_task.cancelled():
return
try:
exc = completed_task.exception()
except asyncio.CancelledError:
return
if exc is not None:
logger.warning(f"Startup greeting monitor task failed: {exc}")
task.add_done_callback(_on_done)
return task
async def run_llm_warmup(
*,
llm_client: Any,
conn_options: APIConnectOptions,
provider: str,
model: str,
) -> None:
started = monotonic()
stream: Any | None = None
got_first_chunk = False
try:
chat_ctx = llm.ChatContext.empty()
chat_ctx.add_message(role="user", content="Reply with OK.")
stream = llm_client.chat(
chat_ctx=chat_ctx,
tools=None,
conn_options=conn_options,
)
async for _ in stream:
got_first_chunk = True
break
except asyncio.CancelledError:
logger.info("LLM warm-up cancelled: provider=%s model=%s", provider, model)
except Exception as exc:
logger.warning("LLM warm-up failed: provider=%s model=%s detail=%s", provider, model, exc)
finally:
if stream is not None:
aclose = getattr(stream, "aclose", None)
if callable(aclose):
try:
await aclose()
except Exception:
pass
elapsed_ms = max((monotonic() - started) * 1000.0, 0.0)
logger.info(
"LLM warm-up completed: provider=%s model=%s first_chunk=%s elapsed_ms=%.1f",
provider,
model,
got_first_chunk,
elapsed_ms,
)
def schedule_llm_warmup_task(
*,
llm_client: Any,
conn_options: APIConnectOptions,
provider: str,
model: str,
) -> asyncio.Task[Any]:
logger.info("Scheduling LLM warm-up task: provider=%s model=%s", provider, model)
task = asyncio.create_task(
run_llm_warmup(
llm_client=llm_client,
conn_options=conn_options,
provider=provider,
model=model,
),
name="llm-warmup",
)
def _on_done(completed_task: asyncio.Task[Any]) -> None:
if completed_task.cancelled():
return
try:
exc = completed_task.exception()
except asyncio.CancelledError:
return
if exc is not None:
logger.warning(f"LLM warm-up task failed: {exc}")
task.add_done_callback(_on_done)
return task
async def cancel_task_for_shutdown(
task: asyncio.Task[Any] | None,
*,
task_name: str,
timeout_sec: float = 0.5,
) -> None:
if task is None or task.done():
return
greeting_handle = getattr(task, "_open_voice_startup_greeting_handle", None)
if greeting_handle is not None:
interrupt = getattr(greeting_handle, "interrupt", None)
if callable(interrupt):
try:
interrupt(force=True)
except Exception as exc:
logger.warning("%s handle interrupt failed during shutdown: %s", task_name, exc)
task.cancel()
try:
await asyncio.wait_for(task, timeout=timeout_sec)
except asyncio.CancelledError:
logger.info("%s task cancelled during shutdown", task_name)
except TimeoutError:
logger.warning("%s task did not cancel within %.2fs", task_name, timeout_sec)
except Exception as exc:
logger.warning("%s task raised during shutdown cancellation: %s", task_name, exc)
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