95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
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/*
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* FreeRTOS+FAT V2.3.3
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* Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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*/
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/**
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* @file ff_locking.h
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* @ingroup LOCKING
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**/
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#ifndef _FF_LOCKING_H_
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#define _FF_LOCKING_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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/*---------- PROTOTYPES (in order of appearance). */
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/* PUBLIC: */
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/* PRIVATE: */
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void FF_PendSemaphore( void * pSemaphore );
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BaseType_t FF_TrySemaphore( void * pSemaphore,
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uint32_t TimeMs );
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void FF_ReleaseSemaphore( void * pSemaphore );
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void FF_Sleep( uint32_t TimeMs );
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/* Create an event group and bind it to an I/O manager. */
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BaseType_t FF_CreateEvents( FF_IOManager_t * pxIOManager );
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/* Delete an event group. */
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void FF_DeleteEvents( FF_IOManager_t * pxIOManager );
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/* Get a lock on all DIR operations for a given I/O manager. */
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void FF_LockDirectory( FF_IOManager_t * pxIOManager );
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/* Release the lock on all DIR operations. */
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void FF_UnlockDirectory( FF_IOManager_t * pxIOManager );
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/* Get a lock on all FAT operations for a given I/O manager. */
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void FF_LockFAT( FF_IOManager_t * pxIOManager );
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/* Release the lock on all FAT operations. */
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void FF_UnlockFAT( FF_IOManager_t * pxIOManager );
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/* Called from FF_GetBuffer() as long as no buffer is available. */
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BaseType_t FF_BufferWait( FF_IOManager_t * pxIOManager,
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uint32_t xWaitMS );
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/* Called from FF_ReleaseBuffer(). */
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void FF_BufferProceed( FF_IOManager_t * pxIOManager );
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/* Check if the current task already has locked the FAT. */
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int FF_Has_Lock( FF_IOManager_t * pxIOManager,
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uint32_t aBits );
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/*
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* Throw a configASSERT() in case the FAT has not been locked
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* by this task.
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*/
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/* _HT_ This function is only necessary while testing. */
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void FF_Assert_Lock( FF_IOManager_t * pxIOManager,
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uint32_t aBits );
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* _FF_LOCKING_H_ */
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