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optimize: use raw udp conn to solve quic in quic problem (juicity#103)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| package server | ||
|
|
||
| import ( | ||
| "context" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/daeuniverse/softwind/protocol/juicity" | ||
| ) | ||
|
|
||
| type inFlightKey = [juicity.UnderlaySaltLen]byte | ||
|
|
||
| type ContextCancel struct { | ||
| Ctx context.Context | ||
| Cancel func() | ||
| } | ||
| type InFlightUnderlayKey struct { | ||
| ttl time.Duration | ||
| mu sync.Mutex | ||
| m map[inFlightKey]*juicity.UnderlayAuth | ||
| notify map[inFlightKey]*ContextCancel | ||
| } | ||
|
|
||
| func NewInFlightUnderlayKey(ttl time.Duration) *InFlightUnderlayKey { | ||
| return &InFlightUnderlayKey{ | ||
| ttl: ttl, | ||
| mu: sync.Mutex{}, | ||
| m: make(map[inFlightKey]*juicity.UnderlayAuth, 64), | ||
| notify: make(map[inFlightKey]*ContextCancel, 64), | ||
| } | ||
| } | ||
|
|
||
| func (i *InFlightUnderlayKey) Evict(k [juicity.UnderlaySaltLen]byte) *juicity.UnderlayAuth { | ||
| i.mu.Lock() | ||
| cc, ok := i.notify[k] | ||
| if !ok { | ||
| ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(i.ttl)) | ||
| cc = &ContextCancel{ | ||
| Ctx: ctx, | ||
| Cancel: cancel, | ||
| } | ||
| i.notify[k] = cc | ||
| i.mu.Unlock() | ||
| _ = context.AfterFunc(ctx, func() { | ||
| i.mu.Lock() | ||
| defer i.mu.Unlock() | ||
| if i.notify[k] == cc { | ||
| delete(i.notify, k) | ||
| } | ||
| }) | ||
| <-cc.Ctx.Done() | ||
| i.mu.Lock() | ||
| defer i.mu.Unlock() | ||
| } else { | ||
| delete(i.notify, k) | ||
| defer cc.Cancel() | ||
| defer i.mu.Unlock() | ||
| } | ||
| auth, ok := i.m[k] | ||
| if !ok { | ||
| return nil | ||
| } | ||
| delete(i.m, k) | ||
| return auth | ||
| } | ||
|
|
||
| func (i *InFlightUnderlayKey) Store(k [juicity.UnderlaySaltLen]byte, auth *juicity.UnderlayAuth) { | ||
| i.mu.Lock() | ||
| defer i.mu.Unlock() | ||
| cc, ok := i.notify[k] | ||
| if !ok { | ||
| ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(i.ttl)) | ||
| cc = &ContextCancel{ | ||
| Ctx: ctx, | ||
| Cancel: cancel, | ||
| } | ||
| i.notify[k] = cc | ||
| i.m[k] = auth | ||
| _ = context.AfterFunc(ctx, func() { | ||
| i.mu.Lock() | ||
| defer i.mu.Unlock() | ||
| if i.notify[k] == cc { | ||
| delete(i.notify, k) | ||
| } | ||
| }) | ||
| } else { | ||
| i.m[k] = auth | ||
| delete(i.notify, k) | ||
| cc.Cancel() | ||
| } | ||
| } |
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