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authorCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
committerCameron Katri <me@cameronkatri.com>2021-05-09 14:20:58 -0400
commit5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree5abf0f78f680d9837dbd93d4d4c3933bb7509599 /text_cmds/sort/file.h
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Diffstat (limited to 'text_cmds/sort/file.h')
-rw-r--r--text_cmds/sort/file.h126
1 files changed, 126 insertions, 0 deletions
diff --git a/text_cmds/sort/file.h b/text_cmds/sort/file.h
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+/* $FreeBSD$ */
+
+/*-
+ * Copyright (C) 2009 Gabor Kovesdan <gabor@FreeBSD.org>
+ * Copyright (C) 2012 Oleg Moskalenko <mom040267@gmail.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_MERGESORT
+#define DEFAULT_SORT_FUNC mergesort
+
+/*
+ * 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;
+};
+
+/* 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);
+
+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__ */