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/*
* segemehl - a read aligner
* Copyright (C) 2008-2017 Steve Hoffmann and Christian Otto
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
//https://codereview.stackexchange.com/questions/75339/read-file-line-by-line-with-circular-buffer
#ifndef FILEBUFFER_H
#define FILEBUFFER_H
/*
*
* filebuffer.h
*
*
* @author Steve Hoffmann, steve@bioinf.uni-leipzig.de
* @company Bioinformatics, University of Leipzig
* @date 22.11.2016 16:46:12 CET
*
*/
#define _DEFAULT_SOURCE 1
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <pthread.h>
typedef struct {
int beg; // Index of first element added to buffer.
int end; // Index of most recent element added to buffer.
size_t size; // Number of elements in circular buffer.
char *buffer;
FILE *dev;
pthread_mutex_t *mtx;
int line_beg;
char feof;
char mode;
} circbuffer_t;
char bl_circBufferRead(circbuffer_t *cb);
void bl_circBufferAddByte(circbuffer_t *cb, char c);
void bl_circBufferSaveAddByte(circbuffer_t *cb, char c);
int bl_circBufferAddSave(circbuffer_t *cb, char *data, size_t len);
void bl_circBufferInit(circbuffer_t *cb, size_t size, FILE *dev, pthread_mutex_t *mtx);
int bl_circBufferIsEmpty(circbuffer_t *cb);
void bl_circBufferDestruct(circbuffer_t *cb);
int bl_circBufferIsFull(circbuffer_t *cb);
circbuffer_t* bl_circBufferInitArray(int n, size_t size, FILE *dev, pthread_mutex_t *mtx);
void bl_circBufferDestructArray(circbuffer_t *bufarr, int n);
void bl_circBufferEmptyArray(circbuffer_t *bufarr, int n);
char* bl_circBufferReadLine(circbuffer_t *cb, uint32_t *len);
void bl_circBufferEmpty(circbuffer_t *cb) ;
#endif
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