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109 lines
4.6 KiB
109 lines
4.6 KiB
/**************************************************************************** |
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* graphics/nxtk/nxtk_block.c |
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* |
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* Copyright (C) 2012 Gregory Nutt. All rights reserved. |
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* Author: Gregory Nutt <gnutt@nuttx.org> |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name NuttX nor the names of its contributors may be |
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* used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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****************************************************************************/ |
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/**************************************************************************** |
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* Included Files |
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****************************************************************************/ |
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#include <nuttx/config.h> |
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#include <nuttx/nx/nx.h> |
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#include <nuttx/nx/nxtk.h> |
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#include "nxfe.h" |
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#ifdef CONFIG_NX_MULTIUSER |
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/**************************************************************************** |
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* Pre-Processor Definitions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Types |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Data |
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****************************************************************************/ |
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/**************************************************************************** |
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* Private Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Public Functions |
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****************************************************************************/ |
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/**************************************************************************** |
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* Name: nxtk_block |
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* |
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* Description: |
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* This is callback will do to things: (1) any queue a 'blocked' callback |
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* to the window and then (2) block any further window messaging. |
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* |
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* The 'blocked' callback is the response from nx_block (or nxtk_block). |
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* Those blocking interfaces are used to assure that no further messages are |
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* are directed to the window. Receipt of the blocked callback signifies |
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* that (1) there are no further pending callbacks and (2) that the |
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* window is now 'defunct' and will receive no further callbacks. |
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* |
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* This callback supports coordinated destruction of a window in multi- |
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* user mode. In multi-use mode, the client window logic must stay |
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* intact until all of the queued callbacks are processed. Then the |
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* window may be safely closed. Closing the window prior with pending |
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* callbacks can lead to bad behavior when the callback is executed. |
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* |
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* Multiple user mode only! |
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* |
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* Input Parameters: |
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* hfwnd - The window to be blocked |
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* arg - An argument that will accompany the block messages (This is arg2 |
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* in the blocked callback). |
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* |
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* Return: |
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* OK on success; ERROR on failure with errno set appropriately |
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* |
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****************************************************************************/ |
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int nxtk_block(NXTKWINDOW hfwnd, FAR void *arg) |
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{ |
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return nx_block((NXWINDOW)hfwnd, arg); |
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} |
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#endif /* CONFIG_NX_MULTIUSER */
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