Files
iotlcm/internal/service/allocate/deadlock.go
T
MiFaZhan 2bec257289 chore: 初始开源发布
iotlcm-worker-svr:异步执行中枢(RabbitMQ 消费者 + 全量同步编排)。

- Go module:iotlcm-worker-svr → git.5iot.com/iotlcm-public/iotlcm-worker-svr(214 文件)
- 凭据与内部标识脱敏:MySQL/Redis 凭据、私网与生产 IP、内网域名、
  库名 xiujie_admin → iotlcm、哨兵名占位
- 159 处真实手机号 → 合法 11 位编造号(保留号段与后 4 位,维持互异,
  不破坏「校验 MSISDN 格式」等测试断言)
- 移除内部资产:CI 触发器、Jenkins 触发测试文档、预演门禁与镜像
  digest 记录
- Dockerfile 改用公共基础镜像(golang:1.25-alpine → alpine:3.23),
  移除写死的 git 凭据
- README 重写(架构/全量同步模型/配置/已知失败),补 Apache-2.0
  LICENSE,LF 行尾 + .gitattributes

已知:3 个测试包在源仓同一提交上同样失败(client/upstream、
service/allocate、service/inbound),属既有缺陷,本仓未引入亦未修复。
2026-10-22 16:37:56 +08:00

89 lines
2.0 KiB
Go

package allocate
import (
"context"
"strings"
"sync"
"time"
"github.com/gogf/gf/v2/frame/g"
)
const (
defaultAllocateDeadlockMaxRetries = 3
defaultAllocateDeadlockRetryDelay = 200 * time.Millisecond
)
type allocateParentLock struct {
mu sync.Mutex
refs int
}
var allocateParentLocks = struct {
mu sync.Mutex
values map[string]*allocateParentLock
}{values: make(map[string]*allocateParentLock)}
func acquireAllocateParentLock(batchNo string) func() {
allocateParentLocks.mu.Lock()
lock := allocateParentLocks.values[batchNo]
if lock == nil {
lock = &allocateParentLock{}
allocateParentLocks.values[batchNo] = lock
}
lock.refs++
allocateParentLocks.mu.Unlock()
lock.mu.Lock()
return func() {
lock.mu.Unlock()
allocateParentLocks.mu.Lock()
lock.refs--
if lock.refs == 0 {
delete(allocateParentLocks.values, batchNo)
}
allocateParentLocks.mu.Unlock()
}
}
func allocateDeadlockMaxRetries(ctx context.Context) int {
retries := g.Cfg().MustGet(ctx, "batch.allocate.deadlockMaxRetries", defaultAllocateDeadlockMaxRetries).Int()
if retries < 0 {
return 0
}
return retries
}
func allocateDeadlockRetryDelay(ctx context.Context, attempt int) time.Duration {
delay := g.Cfg().MustGet(ctx, "batch.allocate.deadlockRetryDelay", defaultAllocateDeadlockRetryDelay).Duration()
if delay <= 0 {
delay = defaultAllocateDeadlockRetryDelay
}
for i := 0; i < attempt; i++ {
if delay >= time.Second {
return time.Second
}
delay *= 2
}
return delay
}
func waitAllocateDeadlockRetry(ctx context.Context, attempt int) error {
timer := time.NewTimer(allocateDeadlockRetryDelay(ctx, attempt))
defer timer.Stop()
select {
case <-ctx.Done():
return ctx.Err()
case <-timer.C:
return nil
}
}
func isAllocateDeadlock(err error) bool {
if err == nil {
return false
}
message := strings.ToLower(err.Error())
return strings.Contains(message, "deadlock found") || strings.Contains(message, "error 1213") || strings.Contains(message, "1213 (40001)")
}