Esempio n. 1
0
File: manage.c Progetto: Eelis/i3
/*
 * Do some sanity checks and then reparent the window.
 *
 */
void manage_window(xcb_window_t window, xcb_get_window_attributes_cookie_t cookie,
                   bool needs_to_be_mapped) {
    xcb_drawable_t d = { window };
    xcb_get_geometry_cookie_t geomc;
    xcb_get_geometry_reply_t *geom;
    xcb_get_window_attributes_reply_t *attr = NULL;

    xcb_get_property_cookie_t wm_type_cookie, strut_cookie, state_cookie,
                              utf8_title_cookie, title_cookie,
                              class_cookie, leader_cookie, transient_cookie,
                              role_cookie, startup_id_cookie, wm_hints_cookie;
#ifdef USE_ICONS                              
    xcb_get_property_cookie_t wm_icon_cookie;
#endif

    geomc = xcb_get_geometry(conn, d);
#define FREE_GEOMETRY() do { \
    if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) != NULL) \
        free(geom); \
} while (0)

    /* Check if the window is mapped (it could be not mapped when intializing and
       calling manage_window() for every window) */
    if ((attr = xcb_get_window_attributes_reply(conn, cookie, 0)) == NULL) {
        DLOG("Could not get attributes\n");
        FREE_GEOMETRY();
        return;
    }

    if (needs_to_be_mapped && attr->map_state != XCB_MAP_STATE_VIEWABLE) {
        FREE_GEOMETRY();
        goto out;
    }

    /* Don’t manage clients with the override_redirect flag */
    if (attr->override_redirect) {
        FREE_GEOMETRY();
        goto out;
    }

    /* Check if the window is already managed */
    if (con_by_window_id(window) != NULL) {
        DLOG("already managed (by con %p)\n", con_by_window_id(window));
        FREE_GEOMETRY();
        goto out;
    }

    /* Get the initial geometry (position, size, …) */
    if ((geom = xcb_get_geometry_reply(conn, geomc, 0)) == NULL) {
        DLOG("could not get geometry\n");
        goto out;
    }

    uint32_t values[1];

    /* Set a temporary event mask for the new window, consisting only of
     * PropertyChange and StructureNotify. We need to be notified of
     * PropertyChanges because the client can change its properties *after* we
     * requested them but *before* we actually reparented it and have set our
     * final event mask.
     * We need StructureNotify because the client may unmap the window before
     * we get to re-parent it.
     * If this request fails, we assume the client has already unmapped the
     * window between the MapRequest and our event mask change. */
    values[0] = XCB_EVENT_MASK_PROPERTY_CHANGE |
                XCB_EVENT_MASK_STRUCTURE_NOTIFY;
    xcb_void_cookie_t event_mask_cookie =
        xcb_change_window_attributes_checked(conn, window, XCB_CW_EVENT_MASK, values);
    if (xcb_request_check(conn, event_mask_cookie) != NULL) {
        LOG("Could not change event mask, the window probably already disappeared.\n");
        goto out;
    }

#define GET_PROPERTY(atom, len) xcb_get_property(conn, false, window, atom, XCB_GET_PROPERTY_TYPE_ANY, 0, len)

    wm_type_cookie = GET_PROPERTY(A__NET_WM_WINDOW_TYPE, UINT32_MAX);
    strut_cookie = GET_PROPERTY(A__NET_WM_STRUT_PARTIAL, UINT32_MAX);
    state_cookie = GET_PROPERTY(A__NET_WM_STATE, UINT32_MAX);
    utf8_title_cookie = GET_PROPERTY(A__NET_WM_NAME, 128);
    leader_cookie = GET_PROPERTY(A_WM_CLIENT_LEADER, UINT32_MAX);
    transient_cookie = GET_PROPERTY(XCB_ATOM_WM_TRANSIENT_FOR, UINT32_MAX);
    title_cookie = GET_PROPERTY(XCB_ATOM_WM_NAME, 128);
    class_cookie = GET_PROPERTY(XCB_ATOM_WM_CLASS, 128);
    role_cookie = GET_PROPERTY(A_WM_WINDOW_ROLE, 128);
    startup_id_cookie = GET_PROPERTY(A__NET_STARTUP_ID, 512);
    wm_hints_cookie = xcb_icccm_get_wm_hints(conn, window);
#ifdef USE_ICONS
    wm_icon_cookie = xcb_get_property_unchecked(conn, false, window, A__NET_WM_ICON, XCB_ATOM_CARDINAL, 0, UINT32_MAX);
#endif
    /* TODO: also get wm_normal_hints here. implement after we got rid of xcb-event */

    DLOG("Managing window 0x%08x\n", window);

    i3Window *cwindow = scalloc(sizeof(i3Window));
    cwindow->id = window;
    cwindow->depth = get_visual_depth(attr->visual);

    /* We need to grab the mouse buttons for click to focus */
    xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
                    XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
                    1 /* left mouse button */,
                    XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);

    xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
                    XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
                    2 /* middle mouse button */,
                    XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);

    xcb_grab_button(conn, false, window, XCB_EVENT_MASK_BUTTON_PRESS,
                    XCB_GRAB_MODE_SYNC, XCB_GRAB_MODE_ASYNC, root, XCB_NONE,
                    3 /* right mouse button */,
                    XCB_BUTTON_MASK_ANY /* don’t filter for any modifiers */);

    /* update as much information as possible so far (some replies may be NULL) */
    window_update_class(cwindow, xcb_get_property_reply(conn, class_cookie, NULL), true);
    window_update_name_legacy(cwindow, xcb_get_property_reply(conn, title_cookie, NULL), true);
    window_update_name(cwindow, xcb_get_property_reply(conn, utf8_title_cookie, NULL), true);
    window_update_leader(cwindow, xcb_get_property_reply(conn, leader_cookie, NULL));
    window_update_transient_for(cwindow, xcb_get_property_reply(conn, transient_cookie, NULL));
    window_update_strut_partial(cwindow, xcb_get_property_reply(conn, strut_cookie, NULL));
    window_update_role(cwindow, xcb_get_property_reply(conn, role_cookie, NULL), true);
    window_update_hints(cwindow, xcb_get_property_reply(conn, wm_hints_cookie, NULL));
#ifdef USE_ICONS
    window_update_icon(cwindow, xcb_get_property_reply(conn, wm_icon_cookie, NULL));
#endif

    xcb_get_property_reply_t *startup_id_reply;
    startup_id_reply = xcb_get_property_reply(conn, startup_id_cookie, NULL);
    char *startup_ws = startup_workspace_for_window(cwindow, startup_id_reply);
    DLOG("startup workspace = %s\n", startup_ws);

    /* check if the window needs WM_TAKE_FOCUS */
    cwindow->needs_take_focus = window_supports_protocol(cwindow->id, A_WM_TAKE_FOCUS);

    /* Where to start searching for a container that swallows the new one? */
    Con *search_at = croot;

    xcb_get_property_reply_t *reply = xcb_get_property_reply(conn, wm_type_cookie, NULL);
    if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DOCK)) {
        LOG("This window is of type dock\n");
        Output *output = get_output_containing(geom->x, geom->y);
        if (output != NULL) {
            DLOG("Starting search at output %s\n", output->name);
            search_at = output->con;
        }

        /* find out the desired position of this dock window */
        if (cwindow->reserved.top > 0 && cwindow->reserved.bottom == 0) {
            DLOG("Top dock client\n");
            cwindow->dock = W_DOCK_TOP;
        } else if (cwindow->reserved.top == 0 && cwindow->reserved.bottom > 0) {
            DLOG("Bottom dock client\n");
            cwindow->dock = W_DOCK_BOTTOM;
        } else {
            DLOG("Ignoring invalid reserved edges (_NET_WM_STRUT_PARTIAL), using position as fallback:\n");
            if (geom->y < (search_at->rect.height / 2)) {
                DLOG("geom->y = %d < rect.height / 2 = %d, it is a top dock client\n",
                     geom->y, (search_at->rect.height / 2));
                cwindow->dock = W_DOCK_TOP;
            } else {
                DLOG("geom->y = %d >= rect.height / 2 = %d, it is a bottom dock client\n",
                     geom->y, (search_at->rect.height / 2));
                cwindow->dock = W_DOCK_BOTTOM;
            }
        }
    }

    DLOG("Initial geometry: (%d, %d, %d, %d)\n", geom->x, geom->y, geom->width, geom->height);

    Con *nc = NULL;
    Match *match = NULL;
    Assignment *assignment;

    /* TODO: two matches for one container */

    /* See if any container swallows this new window */
    nc = con_for_window(search_at, cwindow, &match);
    if (nc == NULL) {
        /* If not, check if it is assigned to a specific workspace / output */
        if ((assignment = assignment_for(cwindow, A_TO_WORKSPACE | A_TO_OUTPUT))) {
            DLOG("Assignment matches (%p)\n", match);
            if (assignment->type == A_TO_WORKSPACE) {
                nc = con_descend_tiling_focused(workspace_get(assignment->dest.workspace, NULL));
                DLOG("focused on ws %s: %p / %s\n", assignment->dest.workspace, nc, nc->name);
                if (nc->type == CT_WORKSPACE)
                    nc = tree_open_con(nc, cwindow);
                else nc = tree_open_con(nc->parent, cwindow);
            }
        /* TODO: handle assignments with type == A_TO_OUTPUT */
        } else if (startup_ws) {
            /* If it’s not assigned, but was started on a specific workspace,
             * we want to open it there */
            DLOG("Using workspace on which this application was started (%s)\n", startup_ws);
            nc = con_descend_tiling_focused(workspace_get(startup_ws, NULL));
            DLOG("focused on ws %s: %p / %s\n", startup_ws, nc, nc->name);
            if (nc->type == CT_WORKSPACE)
                nc = tree_open_con(nc, cwindow);
            else nc = tree_open_con(nc->parent, cwindow);
        } else {
            /* If not, insert it at the currently focused position */
            if (focused->type == CT_CON && con_accepts_window(focused)) {
                LOG("using current container, focused = %p, focused->name = %s\n",
                                focused, focused->name);
                nc = focused;
            } else nc = tree_open_con(NULL, cwindow);
        }
    } else {
        /* M_BELOW inserts the new window as a child of the one which was
         * matched (e.g. dock areas) */
        if (match != NULL && match->insert_where == M_BELOW) {
            nc = tree_open_con(nc, cwindow);
        }
    }

    DLOG("new container = %p\n", nc);
    nc->window = cwindow;
    x_reinit(nc);

    nc->border_width = geom->border_width;

    char *name;
    sasprintf(&name, "[i3 con] container around %p", cwindow);
    x_set_name(nc, name);
    free(name);

    Con *ws = con_get_workspace(nc);
    Con *fs = (ws ? con_get_fullscreen_con(ws, CF_OUTPUT) : NULL);
    if (fs == NULL)
        fs = con_get_fullscreen_con(croot, CF_GLOBAL);

    if (fs == NULL) {
        DLOG("Not in fullscreen mode, focusing\n");
        if (!cwindow->dock) {
            /* Check that the workspace is visible and on the same output as
             * the current focused container. If the window was assigned to an
             * invisible workspace, we should not steal focus. */
            Con *current_output = con_get_output(focused);
            Con *target_output = con_get_output(ws);

            if (workspace_is_visible(ws) && current_output == target_output) {
                if (!match || !match->restart_mode) {
                    con_focus(nc);
                } else DLOG("not focusing, matched with restart_mode == true\n");
            } else DLOG("workspace not visible, not focusing\n");
        } else DLOG("dock, not focusing\n");
    } else {
        DLOG("fs = %p, ws = %p, not focusing\n", fs, ws);
        /* Insert the new container in focus stack *after* the currently
         * focused (fullscreen) con. This way, the new container will be
         * focused after we return from fullscreen mode */
        Con *first = TAILQ_FIRST(&(nc->parent->focus_head));
        if (first != nc) {
            /* We only modify the focus stack if the container is not already
             * the first one. This can happen when existing containers swallow
             * new windows, for example when restarting. */
            TAILQ_REMOVE(&(nc->parent->focus_head), nc, focused);
            TAILQ_INSERT_AFTER(&(nc->parent->focus_head), first, nc, focused);
        }
    }

    /* set floating if necessary */
    bool want_floating = false;
    if (xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_DIALOG) ||
        xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_UTILITY) ||
        xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_TOOLBAR) ||
        xcb_reply_contains_atom(reply, A__NET_WM_WINDOW_TYPE_SPLASH)) {
        LOG("This window is a dialog window, setting floating\n");
        want_floating = true;
    }

    FREE(reply);

    if (cwindow->transient_for != XCB_NONE ||
        (cwindow->leader != XCB_NONE &&
         cwindow->leader != cwindow->id &&
         con_by_window_id(cwindow->leader) != NULL)) {
        LOG("This window is transient for another window, setting floating\n");
        want_floating = true;

        if (config.popup_during_fullscreen == PDF_LEAVE_FULLSCREEN &&
            fs != NULL) {
            LOG("There is a fullscreen window, leaving fullscreen mode\n");
            con_toggle_fullscreen(fs, CF_OUTPUT);
        } else if (config.popup_during_fullscreen == PDF_SMART &&
                   fs != NULL &&
                   fs->window != NULL) {
            i3Window *transient_win = cwindow;
            while (transient_win != NULL &&
                   transient_win->transient_for != XCB_NONE) {
                if (transient_win->transient_for == fs->window->id) {
                    LOG("This floating window belongs to the fullscreen window (popup_during_fullscreen == smart)\n");
                    con_focus(nc);
                    break;
                }
                Con *next_transient = con_by_window_id(transient_win->transient_for);
                if (next_transient == NULL)
                    break;
                transient_win = next_transient->window;
            }
        }
    }

    /* dock clients cannot be floating, that makes no sense */
    if (cwindow->dock)
        want_floating = false;

    /* Store the requested geometry. The width/height gets raised to at least
     * 75x50 when entering floating mode, which is the minimum size for a
     * window to be useful (smaller windows are usually overlays/toolbars/…
     * which are not managed by the wm anyways). We store the original geometry
     * here because it’s used for dock clients. */
    nc->geometry = (Rect){ geom->x, geom->y, geom->width, geom->height };

    if (want_floating) {
        DLOG("geometry = %d x %d\n", nc->geometry.width, nc->geometry.height);
        floating_enable(nc, true);
    }

    /* to avoid getting an UnmapNotify event due to reparenting, we temporarily
     * declare no interest in any state change event of this window */
    values[0] = XCB_NONE;
    xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);

    xcb_void_cookie_t rcookie = xcb_reparent_window_checked(conn, window, nc->frame, 0, 0);
    if (xcb_request_check(conn, rcookie) != NULL) {
        LOG("Could not reparent the window, aborting\n");
        goto geom_out;
    }

    values[0] = CHILD_EVENT_MASK & ~XCB_EVENT_MASK_ENTER_WINDOW;
    xcb_change_window_attributes(conn, window, XCB_CW_EVENT_MASK, values);
    xcb_flush(conn);

    reply = xcb_get_property_reply(conn, state_cookie, NULL);
    if (xcb_reply_contains_atom(reply, A__NET_WM_STATE_FULLSCREEN))
        con_toggle_fullscreen(nc, CF_OUTPUT);

    FREE(reply);

    /* Put the client inside the save set. Upon termination (whether killed or
     * normal exit does not matter) of the window manager, these clients will
     * be correctly reparented to their most closest living ancestor (=
     * cleanup) */
    xcb_change_save_set(conn, XCB_SET_MODE_INSERT, window);

    /* Check if any assignments match */
    run_assignments(cwindow);

    /* 'ws' may be invalid because of the assignments, e.g. when the user uses
     * "move window to workspace 1", but had it assigned to workspace 2. */
    ws = con_get_workspace(nc);

    /* If this window was put onto an invisible workspace (via assignments), we
     * render this workspace. It wouldn’t be rendered in our normal code path
     * because only the visible workspaces get rendered.
     *
     * By rendering the workspace, we assign proper coordinates (read: not
     * width=0, height=0) to the window, which is important for windows who
     * actually use them to position their GUI elements, e.g. rhythmbox. */
    if (ws && !workspace_is_visible(ws)) {
        /* This is a bit hackish: we need to copy the content container’s rect
         * to the workspace, because calling render_con() on the content
         * container would also take the shortcut and not render the invisible
         * workspace at all. However, just calling render_con() on the
         * workspace isn’t enough either — it needs the rect. */
        ws->rect = ws->parent->rect;
        render_con(ws, true);
    }
    tree_render();

    /* Send an event about window creation */
    ipc_send_window_new_event(nc);

geom_out:
    free(geom);
out:
    free(attr);
    return;
}
Esempio n. 2
0
/** fmGlobalEventHandler
 * \ingroup intSwitch
 *
 * \desc            event handler for handling system events
 *
 * \param[in]       args points to the thread arguments
 *
 * \return          Nothing.
 *
 *****************************************************************************/
void *fmGlobalEventHandler(void *args)
{
    fm_thread *               thread;
    fm_event *                event;
    fm_status                 err       = FM_OK;
    fm_eventPort *            portEvent = NULL;
    fm_eventTableUpdateBurst *updateEvent;
    fm_int                    physPort;
    fm_int                    logicalPort;
    fm_eventPktRecv *         rcvPktEvent;
    fm_eventSwitchInserted *  insertEvent;
    fm_eventSwitchRemoved *   removeEvent;
    fm_int                    sw = 0;
    fm_bool                   discardEvent;
    fm_port *                 portPtr = NULL;
    fm_bool                   switchIsProtected;
    fm_switch *               switchPtr;
    fm_int                    mode;
    fm_int                    info[8];
    fm_int                    state;
    fm_int                    numLanes;
    fm_uint32                 i;
    fm_bool                   isPhysicalSwitch;
    fm_switchEventHandler     eventHandler;
    fm_bool                   distributeEvent;
    fm_eventTableUpdate *     fpUpdateEvent;

    /* grab arguments */
    thread = FM_GET_THREAD_HANDLE(args);

    /* wait for initialization to finish before processing events */
    fmCaptureSemaphore(&fmRootApi->startGlobalEventHandler, FM_WAIT_FOREVER);

    enableFramePriority = GET_PROPERTY()->priorityBufQueues;

    while (1)
    {
        /* wait forever for an event */
        err = fmGetThreadEvent(thread, &event, FM_WAIT_FOREVER);

        if (err == FM_ERR_NO_EVENTS_AVAILABLE)
        {
            /* A timeout occurred - should never happen. */
            continue;
        }

        if (event == NULL)
        {
            /* NULL event should never happen. */
            continue;
        }

        sw                = event->sw;
        discardEvent      = FALSE;
        switchIsProtected = FALSE;
        switchPtr         = NULL;

        if (sw < 0 || sw >= fmRootPlatform->cfg.numSwitches)
        {
            discardEvent      = TRUE;
            switchIsProtected = FALSE;
        }
        else if ( SWITCH_LOCK_EXISTS(sw) )
        {
            if ( ( err = PROTECT_SWITCH(sw) ) != FM_OK )
            {
                discardEvent      = TRUE;
                switchIsProtected = FALSE;
            }
            else
            {
                switchIsProtected = TRUE;
                switchPtr         = fmRootApi->fmSwitchStateTable[sw];

                if (!fmRootApi->fmSwitchStateTable[sw])
                {
                    if ((event->type != FM_EVENT_SWITCH_REMOVED) &&
                        (event->type != FM_EVENT_SWITCH_INSERTED) )
                    {
                        discardEvent = TRUE;
                    }
                }
                else if (fmRootApi->fmSwitchStateTable[sw]->state != FM_SWITCH_STATE_UP)
                {
                    if ((event->type != FM_EVENT_SWITCH_REMOVED) &&
                        (event->type != FM_EVENT_SWITCH_INSERTED) )
                    {
                        discardEvent = TRUE;
                    }
                }
            }
        }
        else if (event->type != FM_EVENT_SWITCH_INSERTED)
        {
            discardEvent = TRUE;
        }


        if (discardEvent)
        {
            switch (event->type)
            {
                case FM_EVENT_PKT_RECV:
                case FM_EVENT_SFLOW_PKT_RECV:
                    /* Only dig into the event if the switch is valid */
                    if  ( (sw >= 0) && (sw < fmRootPlatform->cfg.numSwitches) )
                    {
                        rcvPktEvent = &event->info.fpPktEvent;
                        if (enableFramePriority)
                        {
                            err = fmFreeBufferQueueNode(sw, rcvPktEvent);
                            if (err != FM_OK)
                            {
                                FM_LOG_ERROR(FM_LOG_CAT_EVENT_PKT_RX,
                                             "Freeing Buffer queue node from the queue failed"
                                             "status = %d (%s) \n",
                                              err,
                                              fmErrorMsg(err));

                            }
                        }
                        fmFreeBufferChain(sw, rcvPktEvent->pkt);
                        fmDbgDiagCountIncr(sw, FM_CTR_RX_API_PKT_DROPS, 1);
                    }
                    break;

                default:
                    break;
            }

            goto FINISHED;
        }

        eventHandler     = NULL;

        if (switchPtr != NULL)
        {
            /* If the switch state table has an eventHandler pointer,
             * it overrides the global handler.  Call the switch-specific
             * function to handle the event.  This is intended to be used
             * for switches in a switch aggregate (and potentially
             * nested switch aggregates inside other switch aggregates?).
             */
            eventHandler = switchPtr->eventHandler;

            switch (switchPtr->switchModel)
            {
                case FM_SWITCH_MODEL_SWAG:
                    isPhysicalSwitch = FALSE;
                    break;

                default:
                    isPhysicalSwitch = TRUE;
                    break;
            }
        }
        else
        {
            /* Only physical switches should ever get here with a NULL pointer
             * because logical switches such as switch aggregates are always
             * created by application code before any events related to
             * the switch are possible.
             */
            isPhysicalSwitch = TRUE;
        }

        distributeEvent = FALSE;

        switch (event->type)
        {
            case FM_EVENT_SWITCH_INSERTED:
                insertEvent = &event->info.fpSwitchInsertedEvent;
                
                if (switchIsProtected)
                {
                    UNPROTECT_SWITCH(sw);
                    switchIsProtected = FALSE;
                }

                if (switchPtr == NULL)
                {
                    if (fmHandleSwitchInserted(sw, insertEvent) != FM_OK)
                    {
                        /* Don't generate an insert event if there error */
                        goto FINISHED;
                    }
                }

                distributeEvent = TRUE;

                break;

            case FM_EVENT_SWITCH_REMOVED:
                removeEvent = &event->info.fpSwitchRemovedEvent;

                if (switchIsProtected)
                {
                    UNPROTECT_SWITCH(sw);
                    switchIsProtected = FALSE;
                }

                if (switchPtr != NULL)
                {
                    fmHandleSwitchRemoved(sw, removeEvent);
                }

                distributeEvent = TRUE;
                break;

            case FM_EVENT_PORT:
                portEvent = &event->info.fpPortEvent;

                if (isPhysicalSwitch && portEvent->activeMac)
                {
                    logicalPort = portEvent->port;

                    if (switchPtr != NULL)
                    {
                        fmMapLogicalPortToPhysical(switchPtr,
                                                   logicalPort,
                                                   &physPort);

                        portPtr = switchPtr->portTable[logicalPort];
                    }
                    else
                    {
                        portPtr = NULL;
                    }

                    if (portPtr == NULL)
                    {
                        FM_LOG_ERROR(FM_LOG_CAT_EVENT_PORT,
                                     "Unexpected NULL port pointer for logical"
                                     " port %d\n",
                                     logicalPort);
                        break;
                    }

                    /* This attribute indicate whether the API should flush
                     * all the addresses on a port down event or not. */
                    if (GET_PROPERTY()->maFlushOnPortDown)
                    {
                        /* If a link goes down for a non-LAG port, remove any
                         * addresses associated with the port from the MA Table. */
                        if (portEvent->linkStatus == FM_PORT_STATUS_LINK_DOWN)
                        {
                            if (portPtr->portType != FM_PORT_TYPE_LAG)
                            {
                                err = fmFlushPortAddresses(sw, portEvent->port);

                                if (err != FM_OK)
                                {
                                    FM_LOG_WARNING(FM_LOG_CAT_EVENT_PORT,
                                                   "%s\n",
                                                   fmErrorMsg(err));
                                }
                            }
                        }
                    }

                    FM_LOG_DEBUG( FM_LOG_CAT_EVENT_PORT,
                                  "Port %s event reported on port %d.\n",
                                  (portPtr != NULL )
                                    ? ( (portPtr->linkUp) ? "UP  " : "DOWN" )
                                    : "UNKN",
                                  portEvent->port );

                    /* inform LAG module of port state changes */
                    if (portEvent->linkStatus == FM_PORT_STATUS_LINK_UP)
                    {
                        fmInformLAGPortUp(sw, portEvent->port);
                        
                        /* Inform LBGs of port link state change. */
                        FM_API_CALL_FAMILY_VOID(switchPtr->InformLBGLinkChange,
                                                sw, 
                                                portEvent->port, 
                                                FM_PORT_STATUS_LINK_UP);
                    }
                    else if (portEvent->linkStatus == FM_PORT_STATUS_LINK_DOWN)
                    {
                        fmInformLAGPortDown(sw, portEvent->port);
                        
                        /* Inform LBGs of port link state change. */
                        FM_API_CALL_FAMILY_VOID(switchPtr->InformLBGLinkChange,
                                                sw, 
                                                portEvent->port, 
                                                FM_PORT_STATUS_LINK_DOWN);
                    }

                    /* now update all the source masks */
                    fmUpdateSwitchPortMasks(sw);

                    if (switchPtr->UpdateRemoveDownPortsTrigger != NULL)
                    {
                        /**************************************************** 
                         * Update the switchExt->removeDownPortsTrigger
                         * used to drop routed/multicast/special delivery 
                         * frames which can not be handled by the PORT_CFG_2. 
                         * See Bugzilla 11387.
                         ***************************************************/
                        if (portEvent->linkStatus == FM_PORT_STATUS_LINK_UP)
                        {
                            switchPtr->UpdateRemoveDownPortsTrigger(sw, 
                                                                    physPort,
                                                                    FALSE);
                        }
                        else if (portEvent->linkStatus == FM_PORT_STATUS_LINK_DOWN)
                        {
                            if (!portPtr->isPortForceUp)
                            {
                                switchPtr->UpdateRemoveDownPortsTrigger(sw, 
                                                                        physPort,
                                                                        TRUE);
                            }
                        }
                    }

                    if (switchPtr->UpdateMirrorGroups != NULL)
                    {
                        /**************************************************** 
                         * Enable/Disable mirror groups based on the link
                         * status of the mirror port.
                         * See Bugzilla 11387.
                         ***************************************************/
                        if (portEvent->linkStatus == FM_PORT_STATUS_LINK_UP)
                        {
                            switchPtr->UpdateMirrorGroups(sw, 
                                                          logicalPort,
                                                          TRUE);
                        }
                        else if (portEvent->linkStatus == FM_PORT_STATUS_LINK_DOWN)
                        {
                            switchPtr->UpdateMirrorGroups(sw, 
                                                          logicalPort,
                                                          FALSE);
                        }
                    }

                    /* notify anyone else who needs to know */
                    if (portPtr && portPtr->NotifyLinkEvent)
                    {
                        err = portPtr->NotifyLinkEvent(sw, portEvent->port);

                        if (err != FM_OK)
                        {
                            FM_LOG_WARNING(FM_LOG_CAT_EVENT_PORT,
                                           "%s\n",
                                           fmErrorMsg(err));
                        }
                    }

                    /* Get port state and notify platform */

                    err = fmGetPortStateV3( sw,
                                            portEvent->port,
                                            portEvent->mac,
                                            8,
                                            &numLanes,
                                            &mode,
                                            &state,
                                            info );

                    if (err != FM_OK)
                    {
                        FM_LOG_WARNING(FM_LOG_CAT_EVENT_PORT,
                                       "fmGetPortState(%d,%u) failed: %s\n",
                                       sw,
                                       portEvent->port,
                                       fmErrorMsg(err));
                    }

                    fmPlatformNotifyPortState(sw,
                                              portEvent->port,
                                              portEvent->mac,
                                              FALSE,
                                              state);

                    if (switchIsProtected)
                    {
                        UNPROTECT_SWITCH(sw);
                        switchIsProtected = FALSE;
                    }

                }   /* end if (isPhysicalSwitch) */

                distributeEvent = TRUE;
                break;

            case FM_EVENT_PKT_RECV:
            case FM_EVENT_SFLOW_PKT_RECV:
                fmDbgDiagCountIncr(sw, FM_CTR_RX_API_PKT_FWD, 1);
                distributeEvent = TRUE;
                break;

            case FM_EVENT_PURGE_SCAN_COMPLETE:
                distributeEvent = TRUE;
                break; 

            case FM_EVENT_TABLE_UPDATE:
                if (switchPtr == NULL)
                {
                    break;
                }

                /* Update diagnostic counters. */
                updateEvent = &event->info.fpUpdateEvent;
                i = 0;

                while (i < updateEvent->numUpdates)
                {
                    fpUpdateEvent = &updateEvent->updates[i];

                    if (fpUpdateEvent->event == FM_EVENT_ENTRY_LEARNED)
                    {
                        /* Make sure the MA Table entry matches the entry
                         * in the update event. */
                        if (switchPtr->RemoveStaleLearnEvent != NULL &&
                            switchPtr->RemoveStaleLearnEvent(sw, updateEvent, i))
                        {
                            /* The learn event has been removed.
                             * Do not update 'i', since it now contains the 
                             * following event (if any). */
                            fmDbgDiagCountIncr(sw, FM_CTR_MAC_LEARN_DISCARDED, 1);
                        }
                        else
                        {
                            fmDbgDiagCountIncr(sw, FM_CTR_MAC_ALPS_LEARN, 1);
                            i++;
                        }
                    }
                    else
                    {
                        if (fpUpdateEvent->event == FM_EVENT_ENTRY_AGED)
                        {
                            fmDbgDiagCountIncr(sw, FM_CTR_MAC_ALPS_AGE, 1);
                        }
                        i++;
                    }
                }

                /* If all updates have been removed, don't distribute the
                   event */
                if (updateEvent->numUpdates > 0)
                {
                    distributeEvent = TRUE;
                }
                break;

            case FM_EVENT_SECURITY:
            case FM_EVENT_FRAME:
            case FM_EVENT_SOFTWARE:
            case FM_EVENT_PARITY_ERROR:
            case FM_EVENT_FIBM_THRESHOLD:
            case FM_EVENT_CRM:
            case FM_EVENT_ARP:
            case FM_EVENT_EGRESS_TIMESTAMP:
            case FM_EVENT_PLATFORM:
            case FM_EVENT_LOGICAL_PORT:
                distributeEvent = TRUE;
                break;

            default:
                FM_LOG_WARNING(FM_LOG_CAT_EVENT_PORT,
                               "Received unknown event %d\n",
                               event->type);
                break;

        }   /* end switch (event->type) */

        if (distributeEvent)
        {
            if (switchIsProtected)
            {
                UNPROTECT_SWITCH(sw);
                switchIsProtected = FALSE;
            }

            if (eventHandler != NULL)
            {
                if (enableFramePriority && 
                    ( (event->type == FM_EVENT_PKT_RECV) ||
                      (event->type == FM_EVENT_SFLOW_PKT_RECV) ) )
                {
                    rcvPktEvent = &event->info.fpPktEvent;
                    err = fmFreeBufferQueueNode(sw, rcvPktEvent);
                    if (err != FM_OK)
                    {
                        FM_LOG_ERROR(FM_LOG_CAT_EVENT_PKT_RX,
                                     "Freeing Buffer queue node from the queue failed"
                                     "status = %d (%s) \n",
                                      err,
                                      fmErrorMsg(err));

                    }
                }

                eventHandler(event);
            }
            else
            {
                fmDistributeEvent(event);
            }
        }

FINISHED:

        fmReleaseEvent(event);

        /* release the switch lock if any is held */
        if (switchIsProtected)
        {
            UNPROTECT_SWITCH(sw);
        }

    }   /* end while (1) */

    fmExitThread(thread);

    return NULL;

}   /* end fmGlobalEventHandler */