71 	int (*write_data_chunk)(struct output_file *out, unsigned int len,
73 	int (*write_fill_chunk)(struct output_file *out, unsigned int len,
75 	int (*write_skip_chunk)(struct output_file *out, int64_t len);
87 	int64_t len;  member
112 	int (*write)(void *priv, const void *buf, int len);
139 static int file_pad(struct output_file *out, int64_t len)  in file_pad()  argument
144 	ret = ftruncate64(outn->fd, len);  in file_pad()
152 static int file_write(struct output_file *out, void *data, int len)  in file_write()  argument
157 	ret = write(outn->fd, data, len);  in file_write()
161 	} else if (ret < len) {  in file_write()
211 static int gz_file_pad(struct output_file *out, int64_t len)  in gz_file_pad()  argument
221 	if (ret >= len) {  in gz_file_pad()
225 	ret = gzseek(outgz->gz_fd, len - 1, SEEK_SET);  in gz_file_pad()
235 static int gz_file_write(struct output_file *out, void *data, int len)  in gz_file_write()  argument
240 	ret = gzwrite(outgz->gz_fd, data, len);  in gz_file_write()
244 	} else if (ret < len) {  in gz_file_write()
291 static int callback_file_pad(struct output_file *out __unused, int64_t len __unused)  in callback_file_pad()
296 static int callback_file_write(struct output_file *out, void *data, int len)  in callback_file_write()  argument
300 	return outc->write(outc->priv, data, len);  in callback_file_write()
318 int read_all(int fd, void *buf, size_t len)  in read_all()  argument
324 	while (total < len) {  in read_all()
325 		ret = read(fd, ptr, len - total);  in read_all()
366 static int write_sparse_fill_chunk(struct output_file *out, unsigned int len,  in write_sparse_fill_chunk()  argument
374 	rnd_up_len = ALIGN(len, out->block_size);  in write_sparse_fill_chunk()
401 static int write_sparse_data_chunk(struct output_file *out, unsigned int len,  in write_sparse_data_chunk()  argument
409 	rnd_up_len = ALIGN(len, out->block_size);  in write_sparse_data_chunk()
410 	zero_len = rnd_up_len - len;  in write_sparse_data_chunk()
421 	ret = out->ops->write(out, data, len);  in write_sparse_data_chunk()
431 		out->crc32 = sparse_crc32(out->crc32, data, len);  in write_sparse_data_chunk()
475 static int write_normal_data_chunk(struct output_file *out, unsigned int len,  in write_normal_data_chunk()  argument
479 	unsigned int rnd_up_len = ALIGN(len, out->block_size);  in write_normal_data_chunk()
481 	ret = out->ops->write(out, data, len);  in write_normal_data_chunk()
486 	if (rnd_up_len > len) {  in write_normal_data_chunk()
487 		ret = out->ops->skip(out, rnd_up_len - len);  in write_normal_data_chunk()
493 static int write_normal_fill_chunk(struct output_file *out, unsigned int len,  in write_normal_fill_chunk()  argument
505 	while (len) {  in write_normal_fill_chunk()
506 		write_len = min(len, out->block_size);  in write_normal_fill_chunk()
512 		len -= write_len;  in write_normal_fill_chunk()
518 static int write_normal_skip_chunk(struct output_file *out, int64_t len)  in write_normal_skip_chunk()  argument
520 	return out->ops->skip(out, len);  in write_normal_skip_chunk()
525 	return out->ops->pad(out, out->len);  in write_normal_end_chunk()
542 		int64_t len, bool sparse, int chunks, bool crc)  in output_file_init()  argument
546 	out->len = len;  in output_file_init()
580 				.total_blks = out->len / out->block_size,  in output_file_init()
631 		void *priv, unsigned int block_size, int64_t len,  in output_file_open_callback()  argument
647 	ret = output_file_init(&outc->out, block_size, len, sparse, chunks, crc);  in output_file_open_callback()
656 struct output_file *output_file_open_fd(int fd, unsigned int block_size, int64_t len,  in output_file_open_fd()  argument
673 	ret = output_file_init(out, block_size, len, sparse, chunks, crc);  in output_file_open_fd()
683 int write_data_chunk(struct output_file *out, unsigned int len, void *data)  in write_data_chunk()  argument
685 	return out->sparse_ops->write_data_chunk(out, len, data);  in write_data_chunk()
689 int write_fill_chunk(struct output_file *out, unsigned int len,  in write_fill_chunk()  argument
692 	return out->sparse_ops->write_fill_chunk(out, len, fill_val);  in write_fill_chunk()
695 int write_fd_chunk(struct output_file *out, unsigned int len,  in write_fd_chunk()  argument
706 	buffer_size = len + aligned_diff;  in write_fd_chunk()
717 	char *data = malloc(len);  in write_fd_chunk()
726 	ret = read_all(fd, data, len);  in write_fd_chunk()
734 	ret = out->sparse_ops->write_data_chunk(out, len, ptr);  in write_fd_chunk()
746 int write_file_chunk(struct output_file *out, unsigned int len,  in write_file_chunk()  argument
756 	ret = write_fd_chunk(out, len, file_fd, offset);  in write_file_chunk()
763 int write_skip_chunk(struct output_file *out, int64_t len)  in write_skip_chunk()  argument
765 	return out->sparse_ops->write_skip_chunk(out, len);  in write_skip_chunk()