what
b390effd8e
- 新增 WithHandlers 选项，通过反射将 Go 结构体方法暴露给 Python - 新增 callback/callback_result 消息类型，支持 Python 在处理中回调 Go - client 侧新增 readResult，内联处理 callback，复用同一连接避免死锁 - Python 侧新增 call_go[T]() 泛型调用，支持 dataclass 自动构造 - 注入 GOBRIDGE_WORKER_ID/WORKER_COUNT 环境变量，支持多 worker 初始化分工 - 新增示例演示 Go→Python→Go→Python 四层全双工链路 - Python 包版本升至 0.1.1
141 lines
4.4 KiB
Python
141 lines
4.4 KiB
Python
import sys
|
||
import os
|
||
sys.path.insert(0, os.path.join(os.path.dirname(__file__), "..", "python"))
|
||
|
||
import dataclasses
|
||
import threading
|
||
from typing import Iterator
|
||
|
||
from gobridge import expose, call_go, run, worker_id, worker_count
|
||
|
||
# ── worker_id / worker_count ──────────────────────────────────────────────────
|
||
# 只有 worker 0 才执行一次性初始化（如监听端口、建立长连接等），
|
||
# 其余 worker 跳过，避免端口冲突 / 重复连接。
|
||
print(f"[worker {worker_id}/{worker_count}] started", flush=True)
|
||
if worker_id == 0:
|
||
def _init_shared_resource():
|
||
# 示例：此处可启动 WebSocket 客户端、监听 TCP 端口等
|
||
print(f"[worker {worker_id}] shared resource initialized", flush=True)
|
||
threading.Thread(target=_init_shared_resource, daemon=True).start()
|
||
|
||
|
||
# ── 基础类型 ─────────────────────────────────────────────────────────────────
|
||
|
||
@expose
|
||
def add(a: int, b: int) -> int:
|
||
return a + b
|
||
|
||
|
||
@expose
|
||
def range_gen(start: int, stop: int) -> Iterator[int]:
|
||
"""流式输出：对应 Go 侧 Invoke[chan int]"""
|
||
for i in range(start, stop):
|
||
yield i
|
||
|
||
|
||
@expose
|
||
def sum_stream(numbers: Iterator[int]) -> int:
|
||
"""流式输入：对应 Go 侧传入 chan int 参数"""
|
||
return sum(numbers)
|
||
|
||
|
||
@expose
|
||
def double_stream(numbers: Iterator[int]) -> Iterator[int]:
|
||
"""双向流：输入每个数，yield 其平方"""
|
||
for n in numbers:
|
||
yield n * n
|
||
|
||
|
||
# ── struct（dataclass / dict）类型 ───────────────────────────────────────────
|
||
|
||
@dataclasses.dataclass
|
||
class User:
|
||
id: int
|
||
name: str
|
||
score: float
|
||
level: str = ""
|
||
|
||
|
||
@expose
|
||
def get_user(uid: int) -> dict:
|
||
"""普通调用：返回一个 struct（Go 对应 User）"""
|
||
return {"id": uid, "name": f"user_{uid}", "score": uid * 1.5}
|
||
|
||
|
||
@expose
|
||
def total_score(users: list) -> float:
|
||
"""slice 输入：接收 []User，返回总分"""
|
||
return sum(u["score"] for u in users)
|
||
|
||
|
||
@expose
|
||
def enrich_users(users: list) -> list:
|
||
"""slice 输入输出：为每个 user 追加 level 字段"""
|
||
result = []
|
||
for u in users:
|
||
u = dict(u)
|
||
u["level"] = "gold" if u["score"] >= 10 else "silver"
|
||
result.append(u)
|
||
return result
|
||
|
||
|
||
@expose
|
||
def gen_users(count: int) -> Iterator[dict]:
|
||
"""流式输出 struct：yield 多个 User，对应 Go 侧 Invoke[chan User]"""
|
||
for i in range(1, count + 1):
|
||
yield {"id": i, "name": f"user_{i}", "score": float(i * 3)}
|
||
|
||
|
||
@expose
|
||
def process_users(users: Iterator[dict]) -> Iterator[dict]:
|
||
"""双向流 struct：输入流式 User，yield 处理后的 User"""
|
||
for u in users:
|
||
yield {"id": u["id"], "name": u["name"].upper(), "score": u["score"] * 2}
|
||
|
||
|
||
# ── Server 全双工示例 ────────────────────────────────────────────────────────
|
||
|
||
@expose
|
||
def compute_with_go_mul(a: int, b: int) -> int:
|
||
"""示例1：call_go[int] 指定返回类型"""
|
||
return call_go[int]("Multiply", a, b)
|
||
|
||
|
||
@expose
|
||
def squared_with_log(n: int) -> Iterator[int]:
|
||
"""示例2：流式输出，每次 yield 前 call_go("Log") 回调 Go"""
|
||
for i in range(1, n + 1):
|
||
call_go("Log", f"yielding {i}² = {i * i}")
|
||
yield i * i
|
||
|
||
|
||
@expose
|
||
def to_upper(s: str) -> str:
|
||
"""辅助方法：被 Go 的 EnrichName handler 内部调用"""
|
||
return s.upper()
|
||
|
||
|
||
@expose
|
||
def full_chain(name: str) -> str:
|
||
"""示例3：Go→Python→Go→Python 四层链路
|
||
|
||
full_chain("world")
|
||
→ call_go[str]("EnrichName", "world") # Python 调 Go
|
||
→ Invoke[string](ctx, serv, "to_upper", "world") # Go 再调 Python
|
||
← "WORLD"
|
||
← "Hello, WORLD!"
|
||
← "Hello, WORLD!"
|
||
"""
|
||
return call_go[str]("EnrichName", name)
|
||
|
||
|
||
@expose
|
||
def get_user_via_go(uid: int) -> dict:
|
||
"""示例4：call_go[User] 自动将 Go 返回的 dict 构造为 dataclass 实例"""
|
||
user = call_go[User]("MakeUser", uid) # Go 返回 {"id":..,"name":..,"score":..}
|
||
user.level = "gold" if user.score >= 10 else "silver"
|
||
return dataclasses.asdict(user)
|
||
|
||
|
||
run()
|