void BufferedFile::init(Buffer *data, int buffer_size,
int file_size, int buffer_count)
{
// initialize the buffer
init();
set_file_pos(buffer_count);
set_count(buffer_count);
set_data_buffer(data);
set_buffer_size(buffer_size);
set_file_size(file_size);
}
static void extract_phone_book(phone_book_t* pb, char* buffer, int buffer_len)
{
set_data_buffer(buffer);
set_read_pos(0);
set_data_pos(buffer_len * 8);
read_alpha(g_alpha_buf);
read_number_length(&pb->number_length);
read_internate_code(&pb->code);
read_number(g_number_buf, pb->number_length);
strcpy(pb->alpha, g_alpha_buf);
strcpy(pb->number, g_number_buf);
}
static void convert_phone_book(phone_book_t* pb, char* buffer)
{
int force = 0;
if (is_empty_alpha(pb->alpha)) {
int len = strlen(pb->number);
if (len > 13)
len = 13;
copy_number_to_alpha(pb->alpha, pb->number, len);
force = 1;
}
set_data_buffer(buffer);
set_data_pos(0);
write_alpha(pb->alpha, force);;
set_data_pos(28 * 8);
write_number_length((strlen(pb->number) + 1) / 2 + 1);
set_data_pos(30 * 8);
write_internat_code(pb->code);
set_data_pos(32 * 8);
write_number(pb->number);
}