GT_INLINE gt_status gt_buffered_input_file_add_lines_to_block(
gt_buffered_input_file* const buffered_input_file,const uint64_t num_lines) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
register gt_input_file* const input_file = buffered_input_file->input_file;
// Read lines
if (input_file->eof) return GT_BMI_EOF;
register const uint64_t current_position =
buffered_input_file->cursor - gt_vector_get_mem(buffered_input_file->block_buffer,char);
register const uint64_t lines_added =
gt_input_file_get_lines(input_file,buffered_input_file->block_buffer,
gt_expect_true(num_lines)?num_lines:GT_BMI_NUM_LINES);
buffered_input_file->lines_in_buffer += lines_added;
buffered_input_file->cursor = gt_vector_get_elm(buffered_input_file->block_buffer,current_position,char);
return lines_added;
}
GT_INLINE gt_status gt_buffered_input_file_get_block(
gt_buffered_input_file* const buffered_input_file,const uint64_t num_lines) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
register gt_input_file* const input_file = buffered_input_file->input_file;
// Read lines
if (input_file->eof) return GT_BMI_EOF;
gt_input_file_lock(input_file);
if (input_file->eof) {
gt_input_file_unlock(input_file);
return GT_BMI_EOF;
}
buffered_input_file->block_id = gt_input_file_next_id(input_file) % UINT32_MAX;
buffered_input_file->current_line_num = input_file->processed_lines+1;
buffered_input_file->lines_in_buffer =
gt_input_file_get_lines(input_file,buffered_input_file->block_buffer,
gt_expect_true(num_lines)?num_lines:GT_BMI_NUM_LINES);
gt_input_file_unlock(input_file);
// Setup the block
buffered_input_file->cursor = gt_vector_get_mem(buffered_input_file->block_buffer,char);
return buffered_input_file->lines_in_buffer;
}
/*
* Block Synchronization with Output
*/
GT_INLINE void gt_buffered_input_file_attach_buffered_output(
gt_buffered_input_file* const buffered_input_file,gt_buffered_output_file* const buffered_output_file) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
buffered_input_file->buffered_output_file = buffered_output_file;
}
GT_INLINE bool gt_buffered_input_file_eob(gt_buffered_input_file* const buffered_input_file) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
return gt_buffered_input_file_get_cursor_pos(buffered_input_file) >= gt_vector_get_used(buffered_input_file->block_buffer);
}
GT_INLINE uint64_t gt_buffered_input_file_get_cursor_pos(gt_buffered_input_file* const buffered_input_file) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
GT_NULL_CHECK(buffered_input_file->cursor);
return buffered_input_file->cursor-gt_vector_get_mem(buffered_input_file->block_buffer,char);
}
gt_status gt_buffered_input_file_close(gt_buffered_input_file* const buffered_input_file) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
gt_vector_delete(buffered_input_file->block_buffer);
free(buffered_input_file);
return GT_BMI_OK;
}
/*
* Block Synchronization with Output
* In the weird case that multiple buffers are attached,
* using more threads than output buffers (default=25)
* can cause race conditions. Sorry :( // TODO
*/
GT_INLINE void gt_buffered_input_file_attach_buffered_output(
gt_buffered_input_file* const buffered_input_file,gt_buffered_output_file* const buffered_output_file) {
GT_BUFFERED_INPUT_FILE_CHECK(buffered_input_file);
gt_vector_insert(buffered_input_file->attached_buffered_output_file,buffered_output_file,gt_buffered_output_file*);
}