diff options
Diffstat (limited to 'Projects/Benito/Lib/RingBuff.c')
| -rw-r--r-- | Projects/Benito/Lib/RingBuff.c | 240 |
1 files changed, 120 insertions, 120 deletions
diff --git a/Projects/Benito/Lib/RingBuff.c b/Projects/Benito/Lib/RingBuff.c index 2109f8cc0..91c61d06b 100644 --- a/Projects/Benito/Lib/RingBuff.c +++ b/Projects/Benito/Lib/RingBuff.c @@ -1,120 +1,120 @@ -/*
- 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
+/* + 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 |