304 lines
10 KiB
Go
304 lines
10 KiB
Go
package main
|
||
|
||
import (
|
||
"context"
|
||
"fmt"
|
||
"log"
|
||
"path/filepath"
|
||
"runtime"
|
||
|
||
"git.fsdpf.net/go/gobridge"
|
||
)
|
||
|
||
type User struct {
|
||
ID int `json:"id"`
|
||
Name string `json:"name"`
|
||
Score float64 `json:"score"`
|
||
Level string `json:"level,omitempty"`
|
||
}
|
||
|
||
func main() {
|
||
_, file, _, _ := runtime.Caller(0)
|
||
script := filepath.Join(filepath.Dir(file), "worker.py")
|
||
|
||
pool, err := gobridge.NewPool(script,
|
||
gobridge.WithWorkers(2),
|
||
gobridge.WithMaxConns(4),
|
||
)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
defer pool.Close()
|
||
|
||
ctx := context.Background()
|
||
|
||
demoPool(ctx, pool)
|
||
demoServer(ctx, script)
|
||
demoSession(ctx, script)
|
||
}
|
||
|
||
func demoPool(ctx context.Context, pool gobridge.Pool) {
|
||
|
||
// ── 普通调用 ──────────────────────────────────────────────────────────
|
||
sum, err := gobridge.Invoke[int](ctx, pool, "add", 3, 4)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("add(3, 4) =", sum) // 7
|
||
|
||
// ── 流式输出：Python yield → Go channel ──────────────────────────────
|
||
ch, err := gobridge.Invoke[chan int](ctx, pool, "range_gen", 1, 6)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Print("range_gen(1, 6) =")
|
||
for v := range ch {
|
||
fmt.Print(" ", v)
|
||
}
|
||
fmt.Println() // 1 2 3 4 5
|
||
|
||
// ── 流式输入：Go channel → Python Iterator ───────────────────────────
|
||
inputCh := make(chan int, 10)
|
||
go func() {
|
||
for i := 1; i <= 5; i++ {
|
||
inputCh <- i
|
||
}
|
||
close(inputCh)
|
||
}()
|
||
total, err := gobridge.Invoke[int](ctx, pool, "sum_stream", inputCh)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("sum_stream(1..5) =", total) // 15
|
||
|
||
// ── 双向流：Go channel 输入 + Go channel 输出 ────────────────────────
|
||
inputCh2 := make(chan int, 10)
|
||
go func() {
|
||
for i := 1; i <= 5; i++ {
|
||
inputCh2 <- i
|
||
}
|
||
close(inputCh2)
|
||
}()
|
||
outCh, err := gobridge.Invoke[chan int](ctx, pool, "double_stream", inputCh2)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Print("double_stream(1..5) =")
|
||
for v := range outCh {
|
||
fmt.Print(" ", v)
|
||
}
|
||
fmt.Println() // 1 4 9 16 25
|
||
|
||
// ── struct 普通调用 ───────────────────────────────────────────────────
|
||
user, err := gobridge.Invoke[User](ctx, pool, "get_user", 42)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Printf("get_user(42) = %+v\n", user)
|
||
|
||
// ── slice 输入，返回标量 ───────────────────────────────────────────────
|
||
users := []User{
|
||
{ID: 1, Name: "alice", Score: 5.0},
|
||
{ID: 2, Name: "bob", Score: 8.0},
|
||
{ID: 3, Name: "carol", Score: 12.0},
|
||
}
|
||
scoreSum, err := gobridge.Invoke[float64](ctx, pool, "total_score", users)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Printf("total_score([alice,bob,carol]) = %.1f\n", scoreSum)
|
||
|
||
// ── slice 输入输出 ─────────────────────────────────────────────────────
|
||
enriched, err := gobridge.Invoke[[]User](ctx, pool, "enrich_users", users)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("enrich_users:")
|
||
for _, u := range enriched {
|
||
fmt.Printf(" %+v\n", u)
|
||
}
|
||
|
||
// ── 流式输出 struct：Python yield User → Go chan User ─────────────────
|
||
userCh, err := gobridge.Invoke[chan User](ctx, pool, "gen_users", 3)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Print("gen_users(3) =")
|
||
for u := range userCh {
|
||
fmt.Printf(" {%d %s %.0f}", u.ID, u.Name, u.Score)
|
||
}
|
||
fmt.Println()
|
||
|
||
// ── 双向流 struct：Go chan User 输入 → Python 处理 → Go chan User 输出 ─
|
||
inCh := make(chan User, 5)
|
||
go func() {
|
||
for _, u := range users {
|
||
inCh <- u
|
||
}
|
||
close(inCh)
|
||
}()
|
||
procCh, err := gobridge.Invoke[chan User](ctx, pool, "process_users", inCh)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("process_users:")
|
||
for u := range procCh {
|
||
fmt.Printf(" %+v\n", u)
|
||
}
|
||
}
|
||
|
||
// goService 实现 Handler 接口，公开方法自动暴露给 Python 通过 call_go() 调用
|
||
type goService struct {
|
||
pool gobridge.Pool // 用于 EnrichName 内部再调 Python
|
||
}
|
||
|
||
func (s *goService) Multiply(ctx context.Context, a, b int) (int, error) {
|
||
return a * b, nil
|
||
}
|
||
|
||
func (s *goService) Log(msg string) {
|
||
fmt.Println("[Go Log]", msg)
|
||
}
|
||
|
||
// EnrichName 内部通过 Invoke 调用 Python 的 to_upper，演示 Go→Python→Go→Python 四层链路
|
||
func (s *goService) EnrichName(ctx context.Context, name string) (string, error) {
|
||
upper, err := gobridge.Invoke[string](ctx, s.pool, "to_upper", name)
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
return "Hello, " + upper + "!", nil
|
||
}
|
||
|
||
func (s *goService) MakeUser(ctx context.Context, uid int) (User, error) {
|
||
return User{ID: uid, Name: fmt.Sprintf("user_%d", uid), Score: float64(uid) * 1.5}, nil
|
||
}
|
||
|
||
func demoSession(ctx context.Context, script string) {
|
||
fmt.Println("\n── Session 亲和示例（workers=2）─────────────────────────────────")
|
||
|
||
pool, err := gobridge.NewPool(script, gobridge.WithWorkers(2))
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
defer pool.Close()
|
||
|
||
// ── NewSession：三个 session，C 与 A 落在同一 worker，验证互不干扰 ───────
|
||
sessA := gobridge.NewSession(pool) // worker 1
|
||
sessB := gobridge.NewSession(pool) // worker 0
|
||
sessC := gobridge.NewSession(pool) // worker 1（与 A 同进程，不同 session_id）
|
||
|
||
msgA, err := gobridge.Invoke[string](ctx, sessA, "session_init", "A", 100)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("A init:", msgA)
|
||
|
||
msgB, err := gobridge.Invoke[string](ctx, sessB, "session_init", "B", 200)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("B init:", msgB)
|
||
|
||
msgC, err := gobridge.Invoke[string](ctx, sessC, "session_init", "C", 300)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("C init:", msgC) // 应与 A 在同一 worker
|
||
|
||
// 对 A/B/C 各自做 step，验证三者状态完全独立
|
||
v, _ := gobridge.Invoke[int](ctx, sessA, "session_step", "A", 10)
|
||
fmt.Println("A step(+10) =", v) // 110
|
||
v, _ = gobridge.Invoke[int](ctx, sessA, "session_step", "A", 5)
|
||
fmt.Println("A step(+5) =", v) // 115
|
||
|
||
v, _ = gobridge.Invoke[int](ctx, sessB, "session_step", "B", 50)
|
||
fmt.Println("B step(+50) =", v) // 250
|
||
|
||
v, _ = gobridge.Invoke[int](ctx, sessC, "session_step", "C", 99)
|
||
fmt.Println("C step(+99) =", v) // 399（与 A 同 worker 但不受影响）
|
||
|
||
rA, _ := gobridge.Invoke[map[string]any](ctx, sessA, "session_result", "A")
|
||
rB, _ := gobridge.Invoke[map[string]any](ctx, sessB, "session_result", "B")
|
||
rC, _ := gobridge.Invoke[map[string]any](ctx, sessC, "session_result", "C")
|
||
fmt.Printf("A result = %v\n", rA) // map[steps:[10 5] value:115]
|
||
fmt.Printf("B result = %v\n", rB) // map[steps:[50] value:250]
|
||
fmt.Printf("C result = %v\n", rC) // map[steps:[99] value:399]
|
||
|
||
// ── 全局变量测试：sessA 和 sessC 同 worker，共享进程级 counter ──────────
|
||
fmt.Println()
|
||
r, _ := gobridge.Invoke[string](ctx, sessA, "global_increment", 10)
|
||
fmt.Println("sessA +10:", r) // worker 1 counter = 10
|
||
r, _ = gobridge.Invoke[string](ctx, sessC, "global_increment", 5)
|
||
fmt.Println("sessC +5 :", r) // worker 1 counter = 15（与 sessA 共享）
|
||
r, _ = gobridge.Invoke[string](ctx, sessB, "global_increment", 99)
|
||
fmt.Println("sessB +99:", r) // worker 0 counter = 99（独立进程，从 0 开始）
|
||
r, _ = gobridge.Invoke[string](ctx, sessA, "global_get")
|
||
fmt.Println("sessA get:", r) // worker 1 counter = 15（不受 sessB 影响）
|
||
|
||
// ── StickyCtx：相同 key 跨调用始终路由同一 worker ────────────────────
|
||
fmt.Println()
|
||
for i := range 4 {
|
||
affinityCtx := gobridge.StickyCtx(ctx, "sticky-key")
|
||
msg, _ := gobridge.Invoke[string](affinityCtx, pool, "session_init",
|
||
fmt.Sprintf("aff-%d", i), i)
|
||
fmt.Printf("StickyCtx(sticky-key) #%d → %s\n", i, msg)
|
||
}
|
||
|
||
// ── 对照组：不带亲和，轮询分配给两个 worker ─────────────────────────────
|
||
fmt.Println()
|
||
for i := range 4 {
|
||
msg, _ := gobridge.Invoke[string](ctx, pool, "session_init",
|
||
fmt.Sprintf("rr-%d", i), i)
|
||
fmt.Printf("round-robin #%d → %s\n", i, msg)
|
||
}
|
||
}
|
||
|
||
func demoServer(ctx context.Context, script string) {
|
||
fmt.Println("\n── Server 全双工示例 ─────────────────────────────────────────────")
|
||
|
||
svc := &goService{}
|
||
serv, err := gobridge.NewPool(script,
|
||
gobridge.WithWorkers(1),
|
||
gobridge.WithHandlers(svc),
|
||
)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
defer serv.Close()
|
||
svc.pool = serv // 注入 pool 供 EnrichName 内部调用
|
||
|
||
// ── 示例1：Python 调用 Go Multiply ───────────────────────────────────────
|
||
result, err := gobridge.Invoke[int](ctx, serv, "compute_with_go_mul", 6, 7)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("compute_with_go_mul(6, 7) =", result) // 42
|
||
|
||
// ── 示例2：流式输出 + Go Log 回调 ────────────────────────────────────────
|
||
ch, err := gobridge.Invoke[chan int](ctx, serv, "squared_with_log", 4)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Print("squared_with_log(4) =")
|
||
for v := range ch {
|
||
fmt.Print(" ", v)
|
||
}
|
||
fmt.Println() // 1 4 9 16
|
||
|
||
// ── 示例3：Go→Python→Go→Python 四层全双工链路 ───────────────────────────
|
||
// full_chain("world") → call_go[str]("EnrichName","world") → Invoke to_upper("world") → "WORLD"
|
||
// ← "Hello, WORLD!" ← "Hello, WORLD!"
|
||
greeting, err := gobridge.Invoke[string](ctx, serv, "full_chain", "world")
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Println("full_chain(world) =", greeting) // Hello, WORLD!
|
||
|
||
// ── 示例4：call_go[User] 将 Go 返回的 dict 自动构造为 dataclass ──────────
|
||
enriched, err := gobridge.Invoke[User](ctx, serv, "get_user_via_go", 12)
|
||
if err != nil {
|
||
log.Fatal(err)
|
||
}
|
||
fmt.Printf("get_user_via_go(12) = %+v\n", enriched) // {ID:12 Name:user_12 Score:18 Level:gold}
|
||
}
|