mirror of https://github.com/v2ray/v2ray-core
145 lines
2.0 KiB
Go
145 lines
2.0 KiB
Go
package mux
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import (
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"sync"
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"v2ray.com/core/transport/ray"
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)
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type SessionManager struct {
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sync.RWMutex
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sessions map[uint16]*Session
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count uint16
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closed bool
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}
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func NewSessionManager() *SessionManager {
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return &SessionManager{
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count: 0,
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sessions: make(map[uint16]*Session, 32),
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}
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}
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func (m *SessionManager) Size() int {
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m.RLock()
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defer m.RUnlock()
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return len(m.sessions)
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}
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func (m *SessionManager) Count() int {
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m.RLock()
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defer m.RUnlock()
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return int(m.count)
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}
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func (m *SessionManager) Allocate() *Session {
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m.Lock()
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defer m.Unlock()
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if m.closed {
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return nil
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}
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m.count++
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s := &Session{
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ID: m.count,
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parent: m,
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}
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m.sessions[s.ID] = s
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return s
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}
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func (m *SessionManager) Add(s *Session) {
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m.Lock()
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defer m.Unlock()
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m.sessions[s.ID] = s
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}
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func (m *SessionManager) Remove(id uint16) {
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m.Lock()
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defer m.Unlock()
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delete(m.sessions, id)
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}
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func (m *SessionManager) Get(id uint16) (*Session, bool) {
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m.RLock()
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defer m.RUnlock()
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if m.closed {
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return nil, false
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}
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s, found := m.sessions[id]
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return s, found
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}
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func (m *SessionManager) CloseIfNoSession() bool {
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m.Lock()
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defer m.Unlock()
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if m.closed {
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return true
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}
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if len(m.sessions) != 0 {
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return false
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}
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m.closed = true
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return true
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}
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func (m *SessionManager) Close() {
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m.Lock()
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defer m.Unlock()
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if m.closed {
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return
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}
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m.closed = true
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for _, s := range m.sessions {
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s.input.Close()
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s.output.Close()
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}
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m.sessions = make(map[uint16]*Session)
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}
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type Session struct {
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sync.Mutex
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input ray.InputStream
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output ray.OutputStream
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parent *SessionManager
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ID uint16
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uplinkClosed bool
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downlinkClosed bool
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}
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func (s *Session) CloseUplink() {
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var allDone bool
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s.Lock()
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s.uplinkClosed = true
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allDone = s.uplinkClosed && s.downlinkClosed
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s.Unlock()
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if allDone {
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s.parent.Remove(s.ID)
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}
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}
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func (s *Session) CloseDownlink() {
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var allDone bool
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s.Lock()
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s.downlinkClosed = true
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allDone = s.uplinkClosed && s.downlinkClosed
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s.Unlock()
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if allDone {
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s.parent.Remove(s.ID)
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}
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}
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