Function odb_source_loose_map_object

odb/source-loose.c:249–275

}

static void *odb_source_loose_map_object(struct odb_source_loose *loose,
					 const struct object_id *oid,
					 unsigned long *size)
{
	const char *p;
	int fd = open_loose_object(loose, oid, &p);
	void *map = NULL;
	struct stat st;

	if (fd < 0)
		return NULL;

	if (!fstat(fd, &st)) {
		*size = xsize_t(st.st_size);
		if (!*size) {
			/* mmap() is forbidden on empty files */
			error(_("object file %s is empty"), p);
			goto out;
		}

		map = xmmap(NULL, *size, PROT_READ, MAP_PRIVATE, fd, 0);
	}

out:
	close(fd);
	return map;
}

struct odb_loose_read_stream {
	struct odb_read_stream base;