コード例 #1
0
ファイル: KwsStateMachine.cs プロジェクト: tmbx/kwm-ng
        /// <summary>
        /// Process workspace rebuild if required.
        /// </summary>
        private void ProcessKwsRebuildIfNeeded()
        {
            Debug.Assert(m_rebuildStep == KwsRebuildTaskStep.None);

            if (m_cd.CurrentTask != KwsTask.Rebuild)
            {
                return;
            }

            // Sanity check.
            if (m_cd.MainStatus != KwsMainStatus.RebuildRequired)
            {
                KLogging.Log("cannot execute rebuild task, " + KwmStrings.Kws + " status is not RebuildRequired");
                RequestTaskSwitch(KwsTask.Stop);
                return;
            }

            // We cannot rebuild until the applications are stopped and we're
            // logged out.
            if (m_cd.AppStatus != KwsAppStatus.Stopped || m_ks.LoginStatus != KwsLoginStatus.LoggedOut)
            {
                return;
            }

            // Protect against spurious state changes.
            m_rebuildStep = KwsRebuildTaskStep.InProgress;

            try
            {
                // Ask the workspace to prepare for rebuild.
                m_kws.PrepareToRebuild();
                if (m_rebuildStep != KwsRebuildTaskStep.InProgress)
                {
                    return;
                }

                // Tell the applications to prepare for rebuild.
                foreach (KwsApp app in m_kws.AppTree.Values)
                {
                    app.PrepareToRebuild();
                    if (m_rebuildStep != KwsRebuildTaskStep.InProgress)
                    {
                        return;
                    }
                }
            }

            catch (Exception ex)
            {
                HandleMiscFailure(ex);
                return;
            }

            // We have "rebuilt" the workspace. Update the state.
            m_rebuildStep     = KwsRebuildTaskStep.None;
            m_cd.MainStatus   = KwsMainStatus.Good;
            m_cd.RebuildFlags = 0;
            m_cd.Uuid         = Wm.MakeUuid();
            SetLoginType(KwsLoginType.All);
            m_kws.OnStateChange(WmStateChange.Permanent);

            // Switch to the user task.
            SwitchToUserTask();
        }