file.h

   1 /*
   2  * Copyright 2005 Timo Hirvonen
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License as
   6  * published by the Free Software Foundation; either version 2 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17  * 02111-1307, USA.
  18  */
  19
  20 #ifndef _FILE_H
  21 #define _FILE_H
  22
  23 #include <unistd.h>
  24 #include <sys/mman.h>
  25
  26 ssize_t read_all(int fd, void *buf, size_t count);
  27 ssize_t write_all(int fd, const void *buf, size_t count);
  28
  29 /* @filename  file to mmap for reading
  30  * @size      returned size of the file or -1 if failed
  31  *
  32  * returns buffer or NULL if empty file or failed
  33  */
  34 char *mmap_file(const char *filename, int *size);
  35
  36 void buffer_for_each_line(const char *buf, int size,
  37                 int (*cb)(void *data, const char *line),
  38                 void *data);
  39 void buffer_for_each_line_reverse(const char *buf, int size,
  40                 int (*cb)(void *data, const char *line),
  41                 void *data);
  42 int file_for_each_line(const char *filename,
  43                 int (*cb)(void *data, const char *line),
  44                 void *data);
  45
  46 #endif