4 * Join split WIMs (sometimes named as .swm files) together into one WIM.
8 * Copyright (C) 2012, 2013 Eric Biggers
10 * This file is part of wimlib, a library for working with WIM files.
12 * wimlib is free software; you can redistribute it and/or modify it under the
13 * terms of the GNU General Public License as published by the Free
14 * Software Foundation; either version 3 of the License, or (at your option)
17 * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
18 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
19 * A PARTICULAR PURPOSE. See the GNU General Public License for more
22 * You should have received a copy of the GNU General Public License
23 * along with wimlib; if not, see http://www.gnu.org/licenses/.
31 #include "wimlib/lookup_table.h"
32 #include "wimlib/metadata.h"
33 #include "wimlib/resource.h"
34 #include "wimlib/swm.h"
35 #include "wimlib/write.h"
36 #include "wimlib/xml.h"
38 #include <stdlib.h> /* for qsort() */
41 join_wims(WIMStruct **swms, unsigned num_swms,
42 WIMStruct *joined_wim, int write_flags,
43 wimlib_progress_func_t progress_func)
47 union wimlib_progress_info progress;
50 u64 swm_part_sizes[num_swms];
52 /* Calculate total size of the streams in the split WIM parts. */
53 for (i = 0; i < num_swms; i++) {
54 part_bytes = lookup_table_total_stream_size(swms[i]->lookup_table);
55 swm_part_sizes[i] = part_bytes;
56 total_bytes += part_bytes;
60 progress.join.total_bytes = total_bytes;
61 progress.join.total_parts = swms[0]->hdr.total_parts;
62 progress.join.completed_bytes = 0;
63 progress.join.completed_parts = 0;
64 progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
67 /* Write the non-metadata resources from each SWM part */
68 for (i = 0; i < num_swms; i++) {
69 ret = reopen_wim(swms[i]);
72 swms[i]->out_fd = joined_wim->out_fd;
73 swms[i]->hdr.part_number = 1;
75 ret = for_lookup_table_entry_pos_sorted(swms[i]->lookup_table,
86 progress.join.completed_bytes += swm_part_sizes[i];
87 progress.join.completed_parts++;
88 progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
92 /* Copy the metadata resources from the first SWM part */
93 joined_wim->hdr.image_count = swms[0]->hdr.image_count;
94 for (i = 0; i < joined_wim->hdr.image_count; i++) {
95 ret = copy_resource(swms[0]->image_metadata[i]->metadata_lte,
101 /* Write lookup table, XML data, and optional integrity table */
102 merge_lookup_tables(joined_wim, swms, num_swms);
103 free_wim_info(joined_wim->wim_info);
104 joined_wim->wim_info = swms[0]->wim_info;
105 joined_wim->image_metadata = swms[0]->image_metadata;
106 ret = finish_write(joined_wim, WIMLIB_ALL_IMAGES, write_flags, progress_func);
107 joined_wim->wim_info = NULL;
108 joined_wim->image_metadata = NULL;
113 cmp_swms_by_part_number(const void *swm1, const void *swm2)
115 u16 partno_1 = (*(const WIMStruct**)swm1)->hdr.part_number;
116 u16 partno_2 = (*(const WIMStruct**)swm2)->hdr.part_number;
117 return (int)partno_1 - (int)partno_2;
121 * Join a set of split WIMs into a stand-alone WIM.
124 wimlib_join(const tchar * const *swm_names,
126 const tchar *output_path,
129 wimlib_progress_func_t progress_func)
132 WIMStruct *joined_wim = NULL;
135 swm_open_flags |= WIMLIB_OPEN_FLAG_SPLIT_OK;
136 wim_write_flags &= WIMLIB_WRITE_MASK_PUBLIC;
138 if (num_swms < 1 || num_swms > 0xffff)
139 return WIMLIB_ERR_INVALID_PARAM;
141 WIMStruct *swms[num_swms];
144 for (i = 0; i < num_swms; i++) {
145 ret = wimlib_open_wim(swm_names[i], swm_open_flags, &swms[i],
150 /* Don't open all the parts at the same time, in case there are
155 qsort(swms, num_swms, sizeof(swms[0]), cmp_swms_by_part_number);
157 ret = verify_swm_set(swms[0], &swms[1], num_swms - 1);
161 ret = wimlib_create_new_wim(wimlib_get_compression_type(swms[0]),
166 ret = begin_write(joined_wim, output_path, wim_write_flags);
169 ret = join_wims(swms, num_swms, joined_wim, wim_write_flags,
172 for (i = 0; i < num_swms; i++)
173 wimlib_free(swms[i]);
174 wimlib_free(joined_wim);