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/*************************************************************************** |
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* Copyright (c) 2024 Microsoft Corporation |
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* |
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* This program and the accompanying materials are made available under the |
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* terms of the MIT License which is available at |
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* https://opensource.org/licenses/MIT. |
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* |
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* SPDX-License-Identifier: MIT |
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**************************************************************************/ |
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/**************************************************************************/ |
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/**************************************************************************/ |
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/** */ |
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/** GUIX Component */ |
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/** */ |
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/** System Management (System) */ |
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/** */ |
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/**************************************************************************/ |
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#define GX_SOURCE_CODE |
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/* Include necessary system files. */ |
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#include "gx_api.h" |
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#include "gx_system.h" |
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/**************************************************************************/ |
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/* */ |
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/* FUNCTION RELEASE */ |
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/* */ |
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/* _gx_system_unlock PORTABLE C */ |
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/* 6.1 */ |
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/* AUTHOR */ |
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/* */ |
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/* Kenneth Maxwell, Microsoft Corporation */ |
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/* */ |
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/* DESCRIPTION */ |
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/* */ |
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/* This function unlocks the GUIX system mutex */ |
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/* */ |
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/* INPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* OUTPUT */ |
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/* */ |
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/* None */ |
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/* */ |
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/* CALLS */ |
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/* */ |
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/* tx_mutex_put Release the mutex */ |
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/* _gx_system_error_process Process system error */ |
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/* */ |
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/* CALLED BY */ |
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/* */ |
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/* GUIX Internal Code */ |
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/* */ |
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/* RELEASE HISTORY */ |
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/* */ |
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/* DATE NAME DESCRIPTION */ |
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/* */ |
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/* 05-19-2020 Kenneth Maxwell Initial Version 6.0 */ |
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/* 09-30-2020 Kenneth Maxwell Modified comment(s), */ |
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/* resulting in version 6.1 */ |
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/* */ |
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/**************************************************************************/ |
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689108 |
VOID _gx_system_unlock(VOID) |
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{ |
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#ifdef GX_THREADX_BINDING |
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UINT protection_status; |
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#endif |
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✓✓ |
689108 |
if (_gx_system_lock_nesting > 0) |
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{ |
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689092 |
_gx_system_lock_nesting--; |
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✓✓ |
689092 |
if (_gx_system_lock_nesting == 0) |
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{ |
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/* no thread has GUIX locked */ |
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563954 |
_gx_system_lock_thread = GX_NULL; |
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/* Release the protection prior to blocking on the event queue. */ |
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#ifdef GX_THREADX_BINDING |
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protection_status = tx_mutex_put(&_gx_system_protect); |
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/* Determine if the protection was successfully released. */ |
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✓✓ |
563954 |
if (protection_status) |
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{ |
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/* Error releasing protection - call system error handler. */ |
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96877 |
_gx_system_error_process(GX_SYSTEM_PROTECTION_ERROR); |
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/* Return to exit the system thread. */ |
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96877 |
return; |
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} |
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#else |
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GX_SYSTEM_MUTEX_UNLOCK; |
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#endif |
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} |
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} |
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} |
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