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Diffstat (limited to 'Projects/USBtoSerial/Lib/RingBuff.c')
-rw-r--r-- | Projects/USBtoSerial/Lib/RingBuff.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/Projects/USBtoSerial/Lib/RingBuff.c b/Projects/USBtoSerial/Lib/RingBuff.c deleted file mode 100644 index 91c61d06b..000000000 --- a/Projects/USBtoSerial/Lib/RingBuff.c +++ /dev/null @@ -1,120 +0,0 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, distribute, and sell this - software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in - all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -#include "RingBuff.h" - -void Buffer_Initialize(RingBuff_t* const Buffer) -{ - BUFF_ATOMIC_BLOCK - { - Buffer->InPtr = (RingBuff_Data_t*)&Buffer->Buffer; - Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer; - Buffer->Elements = 0; - } -} - -void Buffer_StoreElement(RingBuff_t* const Buffer, RingBuff_Data_t Data) -{ - BUFF_ATOMIC_BLOCK - { - #if defined(BUFF_DROPOLD) - if (Buffer->Elements == BUFF_LENGTH) - { - Buffer->OutPtr++; - - if (Buffer->OutPtr == &Buffer->Buffer[BUFF_LENGTH]) - Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer; - } - else - { - Buffer->Elements++; - } - #elif defined(BUFF_DROPNEW) - if (Buffer->Elements == BUFF_LENGTH) - return; - - Buffer->Elements++; - #elif defined(BUFF_NODROPCHECK) - Buffer->Elements++; - #endif - - *(Buffer->InPtr) = Data; - Buffer->InPtr++; - - if (Buffer->InPtr == &Buffer->Buffer[BUFF_LENGTH]) - Buffer->InPtr = (RingBuff_Data_t*)&Buffer->Buffer; - } -} - -RingBuff_Data_t Buffer_GetElement(RingBuff_t* const Buffer) -{ - RingBuff_Data_t BuffData; - - BUFF_ATOMIC_BLOCK - { -#if defined(BUFF_EMPTYRETURNSZERO) - if (!(Buffer->Elements)) - return 0; -#elif !defined(BUFF_NOEMPTYCHECK) - #error No empty buffer check behavior specified. -#endif - - BuffData = *(Buffer->OutPtr); - - Buffer->OutPtr++; - Buffer->Elements--; - - if (Buffer->OutPtr == &Buffer->Buffer[BUFF_LENGTH]) - Buffer->OutPtr = (RingBuff_Data_t*)&Buffer->Buffer; - } - - return BuffData; -} - -#if defined(BUFF_USEPEEK) -RingBuff_Data_t Buffer_PeekElement(const RingBuff_t* const Buffer) -{ - RingBuff_Data_t BuffData; - - BUFF_ATOMIC_BLOCK - { -#if defined(BUFF_EMPTYRETURNSZERO) - if (!(Buffer->Elements)) - return 0; -#elif !defined(BUFF_NOEMPTYCHECK) - #error No empty buffer check behavior specified. -#endif - - BuffData = *(Buffer->OutPtr); - } - - return BuffData; -} -#endif |