166 lines
4.1 KiB
Go
166 lines
4.1 KiB
Go
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package ragflow
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import (
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"context"
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"gitee.com/red-future---jilin-g/common/redis"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/os/glog"
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"github.com/gogf/gf/v2/os/grpool"
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)
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// WorkerPool RAGFlow 请求处理协程池
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type WorkerPool struct {
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pool *grpool.Pool
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size int
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}
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// NewWorkerPool 创建协程池
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// 参数:
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// - size: 协程池大小,建议设置为 CPU 核心数的 2-4 倍
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//
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// 返回:
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// - *WorkerPool: 协程池实例
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// - error: 创建失败时返回错误
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func NewWorkerPool(size int) (*WorkerPool, error) {
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if size <= 0 {
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return nil, gerror.New("协程池大小必须大于0")
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}
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pool := grpool.New(size)
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return &WorkerPool{
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pool: pool,
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size: size,
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}, nil
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}
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// Submit 提交任务到协程池
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// 参数:
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// - ctx: 上下文
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// - task: 要执行的任务函数
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//
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// 返回:error 提交失败时返回错误
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func (w *WorkerPool) Submit(ctx context.Context, task func(ctx context.Context)) error {
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return w.pool.Add(ctx, func(ctx context.Context) {
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defer func() {
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if r := recover(); r != nil {
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glog.Errorf(ctx, "协程池任务执行 panic: %v", r)
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}
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}()
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task(ctx)
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})
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}
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// Size 获取协程池大小
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func (w *WorkerPool) Size() int {
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return w.size
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}
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// Jobs 获取当前等待执行的任务数量
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func (w *WorkerPool) Jobs() int {
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return w.pool.Jobs()
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}
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// Close 关闭协程池
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func (w *WorkerPool) Close() {
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w.pool.Close()
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}
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// WorkerStats 协程池统计信息
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type WorkerStats struct {
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PoolSize int // 协程池大小
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Jobs int // 等待执行的任务数
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}
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// Stats 获取协程池统计信息
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func (w *WorkerPool) Stats() WorkerStats {
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return WorkerStats{
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PoolSize: w.size,
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Jobs: w.pool.Jobs(),
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}
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}
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// PrintStats 打印协程池统计信息
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func (w *WorkerPool) PrintStats(ctx context.Context) {
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stats := w.Stats()
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glog.Infof(ctx, "协程池统计 - 池大小: %d, 等待任务: %d", stats.PoolSize, stats.Jobs)
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}
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// QueueProcessor 队列处理器,从 Redis 队列中取出任务并提交到协程池
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type QueueProcessor struct {
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pool *WorkerPool
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queueKey string
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timeout int
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stopChan chan struct{}
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handleFunc func(ctx context.Context, message string) error
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}
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// NewQueueProcessor 创建队列处理器
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// 参数:
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// - pool: 协程池
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// - queueKey: Redis 队列键名
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// - timeout: 从队列取消息的超时时间(秒)
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// - handleFunc: 消息处理函数
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func NewQueueProcessor(pool *WorkerPool, queueKey string, timeout int, handleFunc func(ctx context.Context, message string) error) *QueueProcessor {
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return &QueueProcessor{
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pool: pool,
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queueKey: queueKey,
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timeout: timeout,
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stopChan: make(chan struct{}),
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handleFunc: handleFunc,
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}
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}
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// Start 启动队列处理器
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// 会阻塞运行,持续从 Redis 队列中取出消息并提交到协程池处理
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func (q *QueueProcessor) Start(ctx context.Context) error {
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glog.Infof(ctx, "队列处理器启动 - 队列: %s, 超时: %ds", q.queueKey, q.timeout)
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for {
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select {
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case <-q.stopChan:
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glog.Info(ctx, "队列处理器收到停止信号")
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return nil
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default:
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// 从 Redis 队列中取出消息
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message, err := q.fetchMessage(ctx)
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if err != nil {
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glog.Errorf(ctx, "从队列取消息失败: %v", err)
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continue
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}
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// 队列为空,继续等待
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if message == "" {
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continue
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}
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// 提交到协程池处理
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if err := q.submitTask(ctx, message); err != nil {
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glog.Errorf(ctx, "提交任务到协程池失败: %v", err)
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}
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}
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}
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}
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// Stop 停止队列处理器
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func (q *QueueProcessor) Stop() {
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close(q.stopChan)
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}
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// fetchMessage 从 Redis 队列中取出消息
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func (q *QueueProcessor) fetchMessage(ctx context.Context) (string, error) {
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// 调用 Redis 队列的 PopFromQueue 方法从队列中取出消息
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return redis.PopFromQueue(ctx, q.queueKey, q.timeout)
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}
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// submitTask 将消息处理任务提交到协程池
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func (q *QueueProcessor) submitTask(ctx context.Context, message string) error {
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return q.pool.Submit(ctx, func(ctx context.Context) {
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if err := q.handleFunc(ctx, message); err != nil {
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glog.Errorf(ctx, "处理消息失败: %v, 消息: %s", err, message)
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}
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})
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}
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