what
39517dc5fc
- worker.go: 为每个子进程创建 death pipe，Go 持有写端 - __init__.py: run() 中监听管道读端 EOF，Go 退出时立即终止子进程 - 解决 Ctrl+C / panic / SIGKILL 等场景下 Python worker 变成孤儿进程的问题 - Python 包版本升至 0.1.2
150 lines
4.5 KiB
Python
150 lines
4.5 KiB
Python
import sys
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import os
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "python"))
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import dataclasses
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import threading
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from typing import Iterator
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from gobridge import expose, call_go, run, worker_id, worker_count
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# ── worker_id / worker_count ──────────────────────────────────────────────────
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# 只有 worker 0 才执行一次性初始化（如监听端口、建立长连接等），
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# 其余 worker 跳过，避免端口冲突 / 重复连接。
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print(f"[worker {worker_id}/{worker_count}] started", flush=True)
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if worker_id == 0:
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def _init_shared_resource():
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# 示例：此处可启动 WebSocket 客户端、监听 TCP 端口等
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print(f"[worker {worker_id}] shared resource initialized", flush=True)
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threading.Thread(target=_init_shared_resource, daemon=True).start()
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# ── 基础类型 ─────────────────────────────────────────────────────────────────
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@expose
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def add(a: int, b: int) -> int:
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return a + b
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@expose
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def range_gen(start: int, stop: int) -> Iterator[int]:
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"""流式输出：对应 Go 侧 Invoke[chan int]"""
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for i in range(start, stop):
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yield i
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@expose
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def sum_stream(numbers: Iterator[int]) -> int:
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"""流式输入：对应 Go 侧传入 chan int 参数"""
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return sum(numbers)
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@expose
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def double_stream(numbers: Iterator[int]) -> Iterator[int]:
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"""双向流：输入每个数，yield 其平方"""
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for n in numbers:
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yield n * n
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# ── struct（dataclass / dict）类型 ───────────────────────────────────────────
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@dataclasses.dataclass
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class User:
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id: int
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name: str
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score: float
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level: str = ""
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@expose
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def get_user(uid: int) -> dict:
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"""普通调用：返回一个 struct（Go 对应 User）"""
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return {"id": uid, "name": f"user_{uid}", "score": uid * 1.5}
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@expose
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def total_score(users: list) -> float:
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"""slice 输入：接收 []User，返回总分"""
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return sum(u["score"] for u in users)
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@expose
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def enrich_users(users: list) -> list:
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"""slice 输入输出：为每个 user 追加 level 字段"""
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result = []
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for u in users:
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u = dict(u)
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u["level"] = "gold" if u["score"] >= 10 else "silver"
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result.append(u)
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return result
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@expose
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def gen_users(count: int) -> Iterator[dict]:
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"""流式输出 struct：yield 多个 User，对应 Go 侧 Invoke[chan User]"""
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for i in range(1, count + 1):
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yield {"id": i, "name": f"user_{i}", "score": float(i * 3)}
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@expose
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def process_users(users: Iterator[dict]) -> Iterator[dict]:
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"""双向流 struct：输入流式 User，yield 处理后的 User"""
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for u in users:
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yield {"id": u["id"], "name": u["name"].upper(), "score": u["score"] * 2}
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# ── Server 全双工示例 ────────────────────────────────────────────────────────
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@expose
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def compute_with_go_mul(a: int, b: int) -> int:
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"""示例1：call_go[int] 指定返回类型"""
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return call_go[int]("Multiply", a, b)
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@expose
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def squared_with_log(n: int) -> Iterator[int]:
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"""示例2：流式输出，每次 yield 前 call_go("Log") 回调 Go"""
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for i in range(1, n + 1):
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call_go("Log", f"yielding {i}² = {i * i}")
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yield i * i
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@expose
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def to_upper(s: str) -> str:
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"""辅助方法：被 Go 的 EnrichName handler 内部调用"""
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return s.upper()
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@expose
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def full_chain(name: str) -> str:
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"""示例3：Go→Python→Go→Python 四层链路
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full_chain("world")
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→ call_go[str]("EnrichName", "world") # Python 调 Go
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→ Invoke[string](ctx, serv, "to_upper", "world") # Go 再调 Python
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← "WORLD"
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← "Hello, WORLD!"
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← "Hello, WORLD!"
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"""
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return call_go[str]("EnrichName", name)
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@expose
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def get_user_via_go(uid: int) -> dict:
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"""示例4：call_go[User] 自动将 Go 返回的 dict 构造为 dataclass 实例"""
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user = call_go[User]("MakeUser", uid) # Go 返回 {"id":..,"name":..,"score":..}
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user.level = "gold" if user.score >= 10 else "silver"
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return dataclasses.asdict(user)
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if __name__ == "__main__":
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run()
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print("worker_id", worker_id)
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print("worker_count", worker_count)
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