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/* $FreeBSD$ */
/*-
* Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org>
* Copyright (C) 2012 Oleg Moskalenko <oleg.moskalenko@citrix.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if !defined(__SORT_FILE_H__)
#define __SORT_FILE_H__
#include "coll.h"
#include "sort.h"
#define SORT_DEFAULT 0
#define SORT_QSORT 1
#define SORT_MERGESORT 2
#define SORT_HEAPSORT 3
#define SORT_RADIXSORT 4
#define DEFAULT_SORT_ALGORITHM SORT_HEAPSORT
#define DEFAULT_SORT_FUNC heapsort
/*
* List of data to be sorted.
*/
struct sort_list
{
struct sort_list_item **list;
unsigned long long memsize;
size_t count;
size_t size;
size_t sub_list_pos;
};
/*
* File reader object
*/
struct file_reader;
/*
* List of files to be sorted
*/
struct file_list
{
char **fns;
size_t count;
size_t sz;
bool tmp;
};
/*
* Structure for zero-separated file reading (for input files list)
*/
struct file0_reader
{
char *current_line;
FILE *f;
size_t current_sz;
};
/* memory */
/**/
extern unsigned long long free_memory;
extern unsigned long long available_free_memory;
/* Are we using mmap ? */
extern bool use_mmap;
/* temporary file dir */
extern const char *tmpdir;
/*
* Max number of simultaneously open files (including the output file).
*/
extern size_t max_open_files;
/*
* Compress program
*/
extern const char* compress_program;
/* funcs */
struct file_reader *file_reader_init(const char *fsrc);
struct bwstring *file_reader_readline(struct file_reader *fr);
void file_reader_free(struct file_reader *fr);
char *read_file0_line(struct file0_reader *f0r);
void init_tmp_files(void);
void clear_tmp_files(void);
char *new_tmp_file_name(void);
void tmp_file_atexit(const char *tmp_file);
void file_list_init(struct file_list *fl, bool tmp);
void file_list_add(struct file_list *fl, char *fn, bool allocate);
void file_list_populate(struct file_list *fl, int argc, char **argv, bool allocate);
void file_list_clean(struct file_list *fl);
int check(const char *);
void merge_files(struct file_list *fl, const char *fn_out);
FILE *openfile(const char *, const char *);
void closefile(FILE *, const char *);
int procfile(const char *fn, struct sort_list *list, struct file_list *fl);
void sort_list_init(struct sort_list *l);
void sort_list_add(struct sort_list *l, struct bwstring *str);
void sort_list_clean(struct sort_list *l);
void sort_list_dump(struct sort_list *l, const char *fn);
void sort_list_to_file(struct sort_list *list, const char *outfile);
#endif /* __SORT_FILE_H__ */
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