73   virtual int AddToSparseFile(struct sparse_file* s, int64_t len, unsigned int block) = 0;
102   int AddToSparseFile(struct sparse_file* s, int64_t len, unsigned int block) override {  in AddToSparseFile()  argument
103     return sparse_file_add_fd(s, fd, GetOffset(), len, block);  in AddToSparseFile()
167   int AddToSparseFile(struct sparse_file* s, int64_t len, unsigned int block) override {  in AddToSparseFile()  argument
172     return sparse_file_add_data(s, buf, len, block);  in AddToSparseFile()
212 static int process_raw_chunk(struct sparse_file* s, unsigned int chunk_size,  in process_raw_chunk()  argument
216   int64_t len = (int64_t)blocks * s->block_size;  in process_raw_chunk()
218   if (chunk_size % s->block_size != 0) {  in process_raw_chunk()
222   if (chunk_size / s->block_size != blocks) {  in process_raw_chunk()
226   ret = source->AddToSparseFile(s, len, block);  in process_raw_chunk()
246 static int process_fill_chunk(struct sparse_file* s, unsigned int chunk_size,  in process_fill_chunk()  argument
251   int64_t len = (int64_t)blocks * s->block_size;  in process_fill_chunk()
265   ret = sparse_file_add_fill(s, fill_val, len, block);  in process_fill_chunk()
287 static int process_skip_chunk(struct sparse_file* s, unsigned int chunk_size,  in process_skip_chunk()  argument
295     int64_t len = (int64_t)blocks * s->block_size;  in process_skip_chunk()
327 static int process_chunk(struct sparse_file* s, SparseFileSource* source, unsigned int chunk_hdr_sz,  in process_chunk()  argument
338           process_raw_chunk(s, chunk_data_size, source, chunk_header->chunk_sz, cur_block, crc_ptr);  in process_chunk()
340         verbose_error(s->verbose, ret, "data block at %" PRId64, offset);  in process_chunk()
345       ret = process_fill_chunk(s, chunk_data_size, source, chunk_header->chunk_sz, cur_block,  in process_chunk()
348         verbose_error(s->verbose, ret, "fill block at %" PRId64, offset);  in process_chunk()
353       ret = process_skip_chunk(s, chunk_data_size, source, chunk_header->chunk_sz, cur_block,  in process_chunk()
357           verbose_error(s->verbose, ret, "skip block at %" PRId64, offset);  in process_chunk()
365         verbose_error(s->verbose, -EINVAL, "crc block at %" PRId64, offset);  in process_chunk()
370       verbose_error(s->verbose, -EINVAL, "unknown block %04X at %" PRId64, chunk_header->chunk_type,  in process_chunk()
377 static int sparse_file_read_sparse(struct sparse_file* s, SparseFileSource* source, bool crc) {  in sparse_file_read_sparse()  argument
445     ret = process_chunk(s, source, sparse_header.chunk_hdr_sz, &chunk_header, cur_block, crc_ptr);  in sparse_file_read_sparse()
460 static int do_sparse_file_read_normal(struct sparse_file* s, int fd, uint32_t* buf, int64_t offset,  in do_sparse_file_read_normal()  argument
463   unsigned int block = offset / s->block_size;  in do_sparse_file_read_normal()
473     to_read = std::min(remain, (int64_t)(s->block_size));  in do_sparse_file_read_normal()
480     if (to_read == s->block_size) {  in do_sparse_file_read_normal()
482       for (i = 1; i < s->block_size / sizeof(uint32_t); i++) {  in do_sparse_file_read_normal()
494       sparse_file_add_fill(s, buf[0], to_read, block);  in do_sparse_file_read_normal()
496       sparse_file_add_fd(s, fd, offset, to_read, block);  in do_sparse_file_read_normal()
507 static int sparse_file_read_normal(struct sparse_file* s, int fd) {  in sparse_file_read_normal()  argument
509   uint32_t* buf = (uint32_t*)malloc(s->block_size);  in sparse_file_read_normal()
514   ret = do_sparse_file_read_normal(s, fd, buf, 0, s->len);  in sparse_file_read_normal()
520 static int sparse_file_read_hole(struct sparse_file* s, int fd) {  in sparse_file_read_hole()  argument
522   uint32_t* buf = (uint32_t*)malloc(s->block_size);  in sparse_file_read_hole()
540     } else if (start > s->len) {  in sparse_file_read_hole()
550     end = std::min(end, s->len);  in sparse_file_read_hole()
552     start = ALIGN_DOWN(start, s->block_size);  in sparse_file_read_hole()
553     end = ALIGN(end, s->block_size);  in sparse_file_read_hole()
559     ret = do_sparse_file_read_normal(s, fd, buf, start, end - start);  in sparse_file_read_hole()
564   } while (end < s->len);  in sparse_file_read_hole()
570 static int sparse_file_read_hole(struct sparse_file* s __unused, int fd __unused) {  in sparse_file_read_hole()
575 int sparse_file_read(struct sparse_file* s, int fd, enum sparse_read_mode mode, bool crc) {  in sparse_file_read()  argument
583       return sparse_file_read_sparse(s, &source, crc);  in sparse_file_read()
586       return sparse_file_read_normal(s, fd);  in sparse_file_read()
588       return sparse_file_read_hole(s, fd);  in sparse_file_read()
599   struct sparse_file* s;  in sparse_file_import_source()  local
634   s = sparse_file_new(sparse_header.blk_sz, len);  in sparse_file_import_source()
635   if (!s) {  in sparse_file_import_source()
643     sparse_file_destroy(s);  in sparse_file_import_source()
647   s->verbose = verbose;  in sparse_file_import_source()
649   ret = sparse_file_read_sparse(s, source, crc);  in sparse_file_import_source()
651     sparse_file_destroy(s);  in sparse_file_import_source()
655   return s;  in sparse_file_import_source()
669   struct sparse_file* s;  in sparse_file_import_auto()  local
673   s = sparse_file_import(fd, false, crc);  in sparse_file_import_auto()
674   if (s) {  in sparse_file_import_auto()
675     return s;  in sparse_file_import_auto()
685   s = sparse_file_new(4096, len);  in sparse_file_import_auto()
686   if (!s) {  in sparse_file_import_auto()
690     sparse_file_verbose(s);  in sparse_file_import_auto()
693   ret = sparse_file_read_normal(s, fd);  in sparse_file_import_auto()
695     sparse_file_destroy(s);  in sparse_file_import_auto()
699   return s;  in sparse_file_import_auto()