DNF90 服务端与启动器完整源码（含 GM 工具功能增强）
服务端（Go）： - GM 塞背包/带属性装备发放：在线角色推送 op14 增量物品行，背包实时刷新，无需回角色选择界面 - GM 改金币/改等级：去掉在线拒绝，落库后推送 op14 钱包/op37 等级状态，在线实时刷新 - 等级端点统一切换到新版 GMSetCharacterLevel（自带在线刷新） - 无限/锁死疲劳模式 + 燃烧疲劳：每房间消耗 2 点、打怪与通关经验双倍 - 燃烧疲劳开关时给所有在线角色推送系统提示（op12 mode 0） - 深渊史诗掉率：GM 全局倍率 + 城镇增益药剂窗口倍率，真实接入掉落结算 启动器（Python/JS）： - 标题栏自绘、窗口 1204x717、禁止拖拽改大小、仅最小化/关闭 - GM 工具：疲劳与燃烧、深渊史诗掉率、拍卖行上架（单一定价对齐） - 拍卖行上架前端对齐服务端单一价格语义，修复 400 报错
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package hotreload
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import (
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"context"
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"sync"
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)
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// DrainBarrier 在热切换前停止接收新调用，并等待已进入的调用自然结束。
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type DrainBarrier struct {
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mu sync.Mutex
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initialized bool
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accepting bool
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active int
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drainWaiters []chan struct{}
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enterWaiters []chan struct{}
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}
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// BarrierSnapshot 描述热切换屏障当前的接入、活跃调用和等待队列状态。
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type BarrierSnapshot struct {
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Accepting bool `json:"accepting"`
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Active int `json:"active"`
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Waiters int `json:"waiters"`
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DrainWaiters int `json:"drain_waiters,omitempty"`
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EnterWaiters int `json:"enter_waiters,omitempty"`
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}
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// NewDrainBarrier 创建默认允许进入的热切换屏障。
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func NewDrainBarrier() *DrainBarrier {
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return &DrainBarrier{initialized: true, accepting: true}
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}
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// Enter 在屏障接受新调用时进入活跃区，并返回幂等的离开函数。
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func (b *DrainBarrier) Enter(ctx context.Context) (func(), error) {
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if b == nil {
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return func() {}, nil
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}
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if ctx == nil {
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ctx = context.Background()
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}
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if err := ctx.Err(); err != nil {
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return nil, err
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}
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b.mu.Lock()
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b.ensureReadyLocked()
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defer b.mu.Unlock()
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if !b.accepting {
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return nil, ErrBarrierDraining
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}
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b.active++
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once := sync.Once{}
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return func() {
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once.Do(func() {
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b.mu.Lock()
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if b.active > 0 {
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b.active--
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}
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b.notifyDrainLocked()
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b.mu.Unlock()
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})
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}, nil
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}
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// EnterWhenReady 会等待屏障恢复接受新调用后进入活跃区。
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func (b *DrainBarrier) EnterWhenReady(ctx context.Context) (func(), error) {
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if b == nil {
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return func() {}, nil
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}
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if ctx == nil {
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ctx = context.Background()
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}
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for {
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if err := ctx.Err(); err != nil {
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return nil, err
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}
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b.mu.Lock()
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b.ensureReadyLocked()
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if b.accepting {
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b.active++
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b.mu.Unlock()
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once := sync.Once{}
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return func() {
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once.Do(func() {
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b.mu.Lock()
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if b.active > 0 {
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b.active--
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}
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b.notifyDrainLocked()
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b.mu.Unlock()
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})
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}, nil
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}
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waiter := make(chan struct{})
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b.enterWaiters = append(b.enterWaiters, waiter)
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b.mu.Unlock()
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select {
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case <-waiter:
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case <-ctx.Done():
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b.mu.Lock()
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b.enterWaiters = removeWaiter(b.enterWaiters, waiter)
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b.mu.Unlock()
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return nil, ctx.Err()
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}
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}
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}
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// Drain 停止接收新调用，并等待已进入的调用全部离开。
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func (b *DrainBarrier) Drain(ctx context.Context) error {
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if b == nil {
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return nil
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}
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if ctx == nil {
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ctx = context.Background()
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}
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if err := ctx.Err(); err != nil {
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return err
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}
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b.mu.Lock()
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b.ensureReadyLocked()
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b.accepting = false
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for b.active > 0 {
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waiter := make(chan struct{})
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b.drainWaiters = append(b.drainWaiters, waiter)
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b.mu.Unlock()
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select {
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case <-waiter:
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case <-ctx.Done():
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b.mu.Lock()
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b.drainWaiters = removeWaiter(b.drainWaiters, waiter)
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b.mu.Unlock()
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return ctx.Err()
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}
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b.mu.Lock()
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}
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b.mu.Unlock()
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return nil
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}
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// Resume 重新允许调用进入，并唤醒等待恢复的调用方。
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func (b *DrainBarrier) Resume() {
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if b == nil {
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return
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}
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b.mu.Lock()
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b.ensureReadyLocked()
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b.accepting = true
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b.notifyEnterLocked()
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b.mu.Unlock()
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}
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// Snapshot 返回屏障状态快照，便于管理端观测热切换过程。
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func (b *DrainBarrier) Snapshot() BarrierSnapshot {
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if b == nil {
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return BarrierSnapshot{Accepting: true}
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}
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b.mu.Lock()
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b.ensureReadyLocked()
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snapshot := BarrierSnapshot{
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Accepting: b.accepting,
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Active: b.active,
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DrainWaiters: len(b.drainWaiters),
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EnterWaiters: len(b.enterWaiters),
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}
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snapshot.Waiters = snapshot.DrainWaiters + snapshot.EnterWaiters
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b.mu.Unlock()
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return snapshot
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}
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func (b *DrainBarrier) ensureReadyLocked() {
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if b.initialized {
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return
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}
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b.initialized = true
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b.accepting = true
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}
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func (b *DrainBarrier) notifyDrainLocked() {
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if b.active > 0 {
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return
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}
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waiters := b.drainWaiters
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b.drainWaiters = nil
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for _, waiter := range waiters {
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close(waiter)
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}
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}
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func (b *DrainBarrier) notifyEnterLocked() {
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waiters := b.enterWaiters
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b.enterWaiters = nil
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for _, waiter := range waiters {
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close(waiter)
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}
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}
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func removeWaiter(waiters []chan struct{}, target chan struct{}) []chan struct{} {
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for i, waiter := range waiters {
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if waiter != target {
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continue
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}
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copy(waiters[i:], waiters[i+1:])
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waiters[len(waiters)-1] = nil
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return waiters[:len(waiters)-1]
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}
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return waiters
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}
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