Method DestroyAllSessions

controlplane/session_mgr.go:731–746

DestroyAllSessions destroys every active session without holding the manager lock while running per-session cleanup.

()

// naturally before invoking DestroyAllSessions for final teardown.
func (sm *SessionManager) BeginDrain() {
	sm.lifecycle.close()
	sm.mu.Lock()
	sm.failWaitersLocked(ErrSessionManagerDraining)
	sm.mu.Unlock()
}

// DestroyAllSessions destroys every active session without holding the manager
// lock while running per-session cleanup.
func (sm *SessionManager) DestroyAllSessions() {
	for {
		sm.BeginDrain()
		sm.mu.Lock()
		pids := sm.sessionPIDsLocked()
		sm.mu.Unlock()
		if len(pids) == 0 {
			sm.lifecycle.closeAndWait()
			return
		}
		for _, pid := range pids {