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/* (C) 2006-2010 by folkert@vanheusden.com GPLv2 applies */
/* code taken from linux kernel */
#if __GNUC__ == 2 && __GNUC_MINOR__ < 96
#define __builtin_expect(x, expected_value) (x)
#endif
#ifndef __builtin_expect
#define __builtin_expect(x, expected_value) (x)
#endif
#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)
class buffered_reader
{
private:
int fd, block_size;
char *buffer;
long long int buffer_length, buffer_pointer;
char *mmap_addr, *cur_offset;
off64_t size_of_file;
int number_of_bytes_in_buffer(void);
int read_into_buffer(void);
public:
buffered_reader(int fd, int block_size=4096);
~buffered_reader();
int garbage_collect(char shrink_buffer=0);
char * read_line(void);
off64_t file_offset(void);
};
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