1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 * Ceph - scalable distributed file system
6 * Copyright (C) 2015 Red Hat
8 * This is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License version 2.1, as published by the Free Software
11 * Foundation. See file COPYING.
15 #include "RadosDump.h"
17 int RadosDump::read_super()
20 bufferlist::iterator ebliter = ebl.begin();
23 bytes = ebl.read_fd(file_fd, super_header::FIXED_LENGTH);
24 if ((size_t)bytes != super_header::FIXED_LENGTH) {
25 cerr << "Unexpected EOF" << std::endl;
35 int RadosDump::get_header(header *h)
40 bufferlist::iterator ebliter = ebl.begin();
43 bytes = ebl.read_fd(file_fd, sh.header_size);
44 if ((size_t)bytes != sh.header_size) {
45 cerr << "Unexpected EOF" << std::endl;
54 int RadosDump::get_footer(footer *f)
59 bufferlist::iterator ebliter = ebl.begin();
62 bytes = ebl.read_fd(file_fd, sh.footer_size);
63 if ((size_t)bytes != sh.footer_size) {
64 cerr << "Unexpected EOF" << std::endl;
70 if (f->magic != endmagic) {
71 cerr << "Bad footer magic" << std::endl;
78 int RadosDump::read_section(sectiontype_t *type, bufferlist *bl)
83 int ret = get_header(&hdr);
90 bytes = bl->read_fd(file_fd, hdr.size);
91 if (bytes != hdr.size) {
92 cerr << "Unexpected EOF" << std::endl;
98 ret = get_footer(&ft);
107 int RadosDump::skip_object(bufferlist &bl)
109 bufferlist::iterator ebliter = bl.begin();
114 int ret = read_section(&type, &ebl);
118 ebliter = ebl.begin();
119 if (type >= END_OF_TYPES) {
120 cout << "Skipping unknown object section type" << std::endl;
129 cerr << "Skip type " << (int)type << std::endl;
132 case TYPE_OBJECT_END:
136 cerr << "Can't skip unknown type: " << type << std::endl;
143 //Write super_header with its fixed 16 byte length
144 void RadosDump::write_super()
154 header hdr(TYPE_NONE, 0);
157 sh.magic = super_header::super_magic;
158 sh.version = super_header::super_ver;
159 sh.header_size = superbl.length();
162 sh.footer_size = superbl.length();
166 assert(super_header::FIXED_LENGTH == superbl.length());
167 superbl.write_fd(file_fd);