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Diffstat (limited to 'fifo.h')
-rw-r--r-- | fifo.h | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/fifo.h b/fifo.h deleted file mode 100644 index 4b775b0b..00000000 --- a/fifo.h +++ /dev/null @@ -1,47 +0,0 @@ -#ifndef FIO_FIFO_H -#define FIO_FIFO_H -/* - * A simple FIFO implementation. - * - * Copyright (C) 2004 Stelian Pop <stelian@popies.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ -#include "minmax.h" - -struct fifo { - unsigned char *buffer; /* the buffer holding the data */ - unsigned int size; /* the size of the allocated buffer */ - unsigned int in; /* data is added at offset (in % size) */ - unsigned int out; /* data is extracted from off. (out % size) */ -}; - -struct fifo *fifo_alloc(unsigned int); -unsigned int fifo_put(struct fifo *, void *, unsigned int); -unsigned int fifo_get(struct fifo *, void *, unsigned int); -void fifo_free(struct fifo *); - -static inline unsigned int fifo_len(struct fifo *fifo) -{ - return fifo->in - fifo->out; -} - -static inline unsigned int fifo_room(struct fifo *fifo) -{ - return fifo->size - fifo->in + fifo->out; -} - -#endif |