103 lines
2.9 KiB
Go
103 lines
2.9 KiB
Go
package seckill
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import (
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"fmt"
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"sync"
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"time"
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"douyu_go/internal/logger"
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"douyu_go/internal/types"
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"douyu_go/internal/utils"
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)
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func warmupKey(attempt types.ExchangeAttempt) string {
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return fmt.Sprintf("%s|%s", attempt.Account.Name, attempt.Product.CommodityID)
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}
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func (s *Scheduler) setWarmup(key string, data types.WarmupData) {
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s.warmupsMu.Lock()
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defer s.warmupsMu.Unlock()
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if s.warmups == nil {
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s.warmups = make(map[string]types.WarmupData)
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}
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s.warmups[key] = data
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}
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func (s *Scheduler) warmupFor(attempt types.ExchangeAttempt) (types.WarmupData, bool) {
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s.warmupsMu.RLock()
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data, ok := s.warmups[warmupKey(attempt)]
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s.warmupsMu.RUnlock()
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if !ok || data.CreatedAt.IsZero() || time.Since(data.CreatedAt) > warmupMaxAge {
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return types.WarmupData{}, false
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}
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return data, true
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}
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func (s *Scheduler) clearWarmups() {
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s.warmupsMu.Lock()
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defer s.warmupsMu.Unlock()
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s.warmups = make(map[string]types.WarmupData)
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}
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func (s *Scheduler) warmupAttempts(attempts []types.ExchangeAttempt) {
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s.warmupRunMu.Lock()
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defer s.warmupRunMu.Unlock()
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attempts = uniqueWarmupAttempts(attempts)
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if len(attempts) == 0 {
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return
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}
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s.clearWarmups()
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logger.LogEvent("预热", "info", "开始预热: %d 个请求", len(attempts))
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settings := s.settingsSnapshot()
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cli := s.clientSnapshot()
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limit := make(chan struct{}, settings.concurrency)
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var wg sync.WaitGroup
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for _, attempt := range attempts {
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wg.Add(1)
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go func(attempt types.ExchangeAttempt) {
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defer wg.Done()
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limit <- struct{}{}
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defer func() { <-limit }()
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start := time.Now()
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csrf, err := cli.GenerateCSRF(attempt.Account.Cookie)
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if err != nil {
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logger.LogAccountEvent("预热", "warn", attempt.Account.Name, "鉴权token预热失败: 账号=%s 商品=%s err=%v", attempt.Account.Name, attempt.Product.CommodityName, err)
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return
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}
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roleName, err := cli.RoleName(attempt.Account.Cookie)
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if err != nil {
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logger.LogAccountEvent("预热", "warn", attempt.Account.Name, "角色预热失败: 账号=%s err=%v", attempt.Account.Name, err)
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}
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s.setWarmup(warmupKey(attempt), types.WarmupData{
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CSRF: csrf,
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RoleName: roleName,
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Qualified: true,
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CreatedAt: time.Now(),
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})
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logger.LogAccountEvent("预热", "success", attempt.Account.Name, "预热完成: 账号=%s 商品=%s 耗时=%s", attempt.Account.Name, attempt.Product.CommodityName, utils.RoundDuration(time.Since(start)))
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}(attempt)
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}
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wg.Wait()
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logger.LogEvent("预热", "info", "预热任务结束")
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}
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func uniqueWarmupAttempts(attempts []types.ExchangeAttempt) []types.ExchangeAttempt {
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if len(attempts) <= 1 {
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return attempts
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}
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seen := make(map[string]struct{}, len(attempts))
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out := make([]types.ExchangeAttempt, 0, len(attempts))
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for _, attempt := range attempts {
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key := warmupKey(attempt)
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if _, ok := seen[key]; ok {
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continue
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}
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seen[key] = struct{}{}
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out = append(out, attempt)
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}
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return out
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}
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