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/.
26 #include "wimlib_internal.h"
27 #include "lookup_table.h"
32 move_lte_to_table(struct wim_lookup_table_entry *lte, void *other_tab)
34 hlist_del(<e->hash_list);
35 lookup_table_insert((struct wim_lookup_table*)other_tab, lte);
40 lookup_table_join(struct wim_lookup_table *table,
41 struct wim_lookup_table *new)
43 for_lookup_table_entry(new, move_lte_to_table, table);
49 * new_joined_lookup_table: - Join lookup tables from the parts of a split WIM.
51 * @w specifies the first part, while @additional_swms and @num_additional_swms
52 * specify an array of pointers to the WIMStruct's for additional split WIM parts.
54 * The lookup table entries are *moved* to the new table.
56 * On success, 0 is returned on a pointer to the joined lookup table is returned
59 * The reason we join the lookup tables is so we only have to search one lookup
60 * table to find the location of a resource in the entire WIM.
63 new_joined_lookup_table(WIMStruct *w,
64 WIMStruct **additional_swms,
65 unsigned num_additional_swms,
66 struct wim_lookup_table **table_ret)
68 struct wim_lookup_table *table;
72 table = new_lookup_table(9001);
74 return WIMLIB_ERR_NOMEM;
77 lookup_table_join(table, w->lookup_table);
79 for (i = 0; i < num_additional_swms; i++) {
80 ret = lookup_table_join(table, additional_swms[i]->lookup_table);
87 free_lookup_table(table);
93 join_wims(WIMStruct **swms, unsigned num_swms,
94 WIMStruct *joined_wim, int write_flags,
95 wimlib_progress_func_t progress_func)
99 union wimlib_progress_info progress;
102 u64 swm_part_sizes[num_swms];
104 /* Calculate total size of the streams in the split WIM parts. */
105 for (i = 0; i < num_swms; i++) {
106 part_bytes = lookup_table_total_stream_size(swms[i]->lookup_table);
107 swm_part_sizes[i] = part_bytes;
108 total_bytes += part_bytes;
112 progress.join.total_bytes = total_bytes;
113 progress.join.total_parts = swms[0]->hdr.total_parts;
114 progress.join.completed_bytes = 0;
115 progress.join.completed_parts = 0;
116 progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
119 /* Write the non-metadata resources from each SWM part */
120 for (i = 0; i < num_swms; i++) {
121 ret = reopen_wim(swms[i]);
124 swms[i]->out_fd = joined_wim->out_fd;
125 swms[i]->hdr.part_number = 1;
127 ret = for_lookup_table_entry_pos_sorted(swms[i]->lookup_table,
130 swms[i]->out_fd = -1;
138 progress.join.completed_bytes += swm_part_sizes[i];
139 progress.join.completed_parts++;
140 progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
144 /* Copy the metadata resources from the first SWM part */
145 joined_wim->hdr.image_count = swms[0]->hdr.image_count;
146 for (i = 0; i < joined_wim->hdr.image_count; i++) {
147 ret = copy_resource(swms[0]->image_metadata[i]->metadata_lte,
153 /* Write lookup table, XML data, and optional integrity table */
154 for (i = 0; i < num_swms; i++)
155 lookup_table_join(joined_wim->lookup_table, swms[i]->lookup_table);
157 free_wim_info(joined_wim->wim_info);
158 joined_wim->wim_info = swms[0]->wim_info;
159 joined_wim->image_metadata = swms[0]->image_metadata;
160 ret = finish_write(joined_wim, WIMLIB_ALL_IMAGES, write_flags, progress_func);
161 joined_wim->wim_info = NULL;
162 joined_wim->image_metadata = NULL;
167 cmp_swms_by_part_number(const void *swm1, const void *swm2)
169 u16 partno_1 = (*(const WIMStruct**)swm1)->hdr.part_number;
170 u16 partno_2 = (*(const WIMStruct**)swm2)->hdr.part_number;
171 return (int)partno_1 - (int)partno_2;
175 * Join a set of split WIMs into a stand-alone WIM.
178 wimlib_join(const tchar * const *swm_names,
180 const tchar *output_path,
183 wimlib_progress_func_t progress_func)
186 WIMStruct *joined_wim = NULL;
189 swm_open_flags |= WIMLIB_OPEN_FLAG_SPLIT_OK;
190 wim_write_flags &= WIMLIB_WRITE_MASK_PUBLIC;
192 if (num_swms < 1 || num_swms > 0xffff)
193 return WIMLIB_ERR_INVALID_PARAM;
195 WIMStruct *swms[num_swms];
198 for (i = 0; i < num_swms; i++) {
199 ret = wimlib_open_wim(swm_names[i], swm_open_flags, &swms[i],
204 /* Don't open all the parts at the same time, in case there are
209 qsort(swms, num_swms, sizeof(swms[0]), cmp_swms_by_part_number);
211 ret = verify_swm_set(swms[0], &swms[1], num_swms - 1);
215 ret = wimlib_create_new_wim(wimlib_get_compression_type(swms[0]),
220 ret = begin_write(joined_wim, output_path, wim_write_flags);
223 ret = join_wims(swms, num_swms, joined_wim, wim_write_flags,
226 for (i = 0; i < num_swms; i++)
227 wimlib_free(swms[i]);
228 wimlib_free(joined_wim);