* join.c
*
* Join split WIMs (sometimes named as .swm files) together into one WIM.
+ */
+
+/*
+ * Copyright (C) 2012, 2013 Eric Biggers
*
- * Copyright (C) 2012 Eric Biggers
- *
- * wimlib - Library for working with WIM files
+ * This file is part of wimlib, a library for working with WIM files.
*
- * This library is free software; you can redistribute it and/or modify it under
- * the terms of the GNU Lesser General Public License as published by the Free
- * Software Foundation; either version 2.1 of the License, or (at your option) any
- * later version.
+ * wimlib is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 3 of the License, or (at your option)
+ * any later version.
*
- * This library is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
- * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ * wimlib is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
*
- * You should have received a copy of the GNU Lesser General Public License along
- * with this library; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * You should have received a copy of the GNU General Public License
+ * along with wimlib; if not, see http://www.gnu.org/licenses/.
*/
-#include "wimlib.h"
-#include "lookup_table.h"
-#include "xml.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-static int join_wims(WIMStruct **swms, uint num_swms, WIMStruct *joined_wim,
- int write_flags)
+#include "wimlib.h"
+#include "wimlib/lookup_table.h"
+#include "wimlib/metadata.h"
+#include "wimlib/resource.h"
+#include "wimlib/swm.h"
+#include "wimlib/write.h"
+#include "wimlib/xml.h"
+
+#include <stdlib.h> /* for qsort() */
+
+static int
+join_wims(WIMStruct **swms, unsigned num_swms,
+ WIMStruct *joined_wim, int write_flags,
+ wimlib_progress_func_t progress_func)
{
- uint i;
int ret;
- FILE *out_fp = joined_wim->out_fp;
- u64 total_bytes = wim_info_get_total_bytes(swms[0]->wim_info);
+ unsigned i;
+ union wimlib_progress_info progress;
+ u64 total_bytes = 0;
+ u64 part_bytes;
+ u64 swm_part_sizes[num_swms];
- swms[0]->write_metadata = false;
+ /* Calculate total size of the streams in the split WIM parts. */
for (i = 0; i < num_swms; i++) {
- if (write_flags & WIMLIB_WRITE_FLAG_SHOW_PROGRESS) {
- off_t cur_offset = ftello(out_fp);
- printf("Writing resources from part %u of %u "
- "(%"PRIu64" of %"PRIu64" bytes, %.0f%% done)\n",
- i + 1, num_swms,
- cur_offset, total_bytes,
- (double)cur_offset / total_bytes * 100.0);
- }
- swms[i]->fp = fopen(swms[i]->filename, "rb");
- if (!swms[i]->fp) {
- ERROR("Failed to reopen `%s': %m\n", swms[i]->filename);
- return WIMLIB_ERR_OPEN;
- }
- swms[i]->out_fp = out_fp;
- swms[i]->hdr.part_number = 1;
- ret = for_lookup_table_entry(swms[i]->lookup_table,
- copy_resource, swms[i]);
- if (ret != 0)
- return ret;
- if (i != 0) {
- fclose(swms[i]->fp);
- swms[i]->fp = NULL;
- }
- }
- swms[0]->write_metadata = true;
- if (write_flags & WIMLIB_WRITE_FLAG_SHOW_PROGRESS)
- printf("Writing %d metadata resources\n",
- swms[0]->hdr.image_count);
-
- for (i = 0; i < swms[0]->hdr.image_count; i++) {
- ret = copy_resource(swms[0]->image_metadata[i].lookup_table_entry,
- swms[0]);
- if (ret != 0)
- return ret;
+ part_bytes = lookup_table_total_stream_size(swms[i]->lookup_table);
+ swm_part_sizes[i] = part_bytes;
+ total_bytes += part_bytes;
}
- off_t lookup_table_offset = ftello(out_fp);
+ if (progress_func) {
+ progress.join.total_bytes = total_bytes;
+ progress.join.total_parts = swms[0]->hdr.total_parts;
+ progress.join.completed_bytes = 0;
+ progress.join.completed_parts = 0;
+ progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
+ }
- if (write_flags & WIMLIB_WRITE_FLAG_SHOW_PROGRESS)
- printf("Writing lookup tables, XML data, and header\n");
- /* Now write the lookup table for the joined wim. Since the lookup
- * table has no header, we can just concatenate the lookup tables of all
- * the SWM parts. */
+ /* Write the non-metadata resources from each SWM part */
for (i = 0; i < num_swms; i++) {
- ret = write_lookup_table(swms[i]->lookup_table, out_fp);
- if (ret != 0)
+ ret = reopen_wim(swms[i]);
+ if (ret)
return ret;
- }
- off_t xml_data_offset = ftello(out_fp);
+ swms[i]->out_fd = joined_wim->out_fd;
+ swms[i]->hdr.part_number = 1;
- if (lookup_table_offset == -1 || xml_data_offset == -1) {
- ERROR("Failed to get file offset: %m\n");
- return WIMLIB_ERR_WRITE;
+ ret = for_lookup_table_entry_pos_sorted(swms[i]->lookup_table,
+ copy_resource,
+ swms[i]);
+ swms[i]->out_fd = -1;
+ if (i != 0)
+ close_wim(swms[i]);
+
+ if (ret)
+ return ret;
+
+ if (progress_func) {
+ progress.join.completed_bytes += swm_part_sizes[i];
+ progress.join.completed_parts++;
+ progress_func(WIMLIB_PROGRESS_MSG_JOIN_STREAMS, &progress);
+ }
}
- swms[0]->hdr.lookup_table_res_entry.offset = lookup_table_offset;
- swms[0]->hdr.lookup_table_res_entry.size =
- xml_data_offset - lookup_table_offset;
+ /* Copy the metadata resources from the first SWM part */
+ joined_wim->hdr.image_count = swms[0]->hdr.image_count;
+ for (i = 0; i < joined_wim->hdr.image_count; i++) {
+ ret = copy_resource(swms[0]->image_metadata[i]->metadata_lte,
+ joined_wim);
+ if (ret)
+ return ret;
+ }
- /* finish_write is called on the first swm, not the joined_wim, because
- * the first swm is the one that has the image metadata and XML data
- * attached to it. */
- swms[0]->hdr.flags &= ~WIM_HDR_FLAG_SPANNED;
- swms[0]->hdr.total_parts = 1;
- return finish_write(swms[0], WIM_ALL_IMAGES, write_flags, 0);
+ /* Write lookup table, XML data, and optional integrity table */
+ merge_lookup_tables(joined_wim, swms, num_swms);
+ free_wim_info(joined_wim->wim_info);
+ joined_wim->wim_info = swms[0]->wim_info;
+ joined_wim->image_metadata = swms[0]->image_metadata;
+ ret = finish_write(joined_wim, WIMLIB_ALL_IMAGES, write_flags, progress_func);
+ joined_wim->wim_info = NULL;
+ joined_wim->image_metadata = NULL;
+ return ret;
}
+static int
+cmp_swms_by_part_number(const void *swm1, const void *swm2)
+{
+ u16 partno_1 = (*(const WIMStruct**)swm1)->hdr.part_number;
+ u16 partno_2 = (*(const WIMStruct**)swm2)->hdr.part_number;
+ return (int)partno_1 - (int)partno_2;
+}
-WIMLIBAPI int wimlib_join(const char **swm_names, int num_swms,
- const char *output_path, int flags)
+/*
+ * Join a set of split WIMs into a stand-alone WIM.
+ */
+WIMLIBAPI int
+wimlib_join(const tchar * const *swm_names,
+ unsigned num_swms,
+ const tchar *output_path,
+ int swm_open_flags,
+ int wim_write_flags,
+ wimlib_progress_func_t progress_func)
{
- int i;
int ret;
- int part_idx;
- int write_flags = 0;
- WIMStruct *w;
WIMStruct *joined_wim = NULL;
- WIMStruct *swms[num_swms];
-
- /* keep track of ctype and guid just to make sure they are the same for
- * all the WIMs. */
- int ctype;
- u8 *guid;
+ unsigned i;
- ZERO_ARRAY(swms);
- for (i = 0; i < num_swms; i++) {
- ret = wimlib_open_wim(swm_names[i],
- flags | WIMLIB_OPEN_FLAG_SPLIT_OK, &w);
- if (ret != 0)
- goto err;
-
- /* don't open all the parts at the same time, in case there are
- * a lot af them */
- fclose(w->fp);
- w->fp = NULL;
-
- if (i == 0) {
- ctype = wimlib_get_compression_type(w);
- guid = w->hdr.guid;
- } else {
- if (wimlib_get_compression_type(w) != ctype) {
- ERROR("The split WIMs do not all have the same "
- "compression type!\n");
- ret = WIMLIB_ERR_SPLIT_INVALID;
- goto err;
- }
- if (memcmp(guid, w->hdr.guid, WIM_GID_LEN) != 0) {
- ERROR("The split WIMs do not all have the "
- "same GUID!\n");
- ret = WIMLIB_ERR_SPLIT_INVALID;
- goto err;
- }
- }
- if (w->hdr.total_parts != num_swms) {
- ERROR("`%s' (part %d) says there are %d total parts, "
- "but %d parts were specified!\n",
- swm_names[i], w->hdr.part_number,
- w->hdr.total_parts, num_swms);
- ret = WIMLIB_ERR_SPLIT_INVALID;
- goto err;
- }
- if (w->hdr.part_number == 0 || w->hdr.part_number > num_swms) {
- ERROR("`%s' says it is part %d, but expected a number\n"
- "between 1 and %d!\n",
- swm_names[i], w->hdr.part_number, num_swms);
- ret = WIMLIB_ERR_SPLIT_INVALID;
- goto err;
- }
- part_idx = w->hdr.part_number - 1;
- if (swms[part_idx] != NULL) {
- ERROR("`%s' and `%s' both say they are part %d of %d!\n",
- swm_names[i], swms[part_idx]->filename,
- w->hdr.part_number, num_swms);
- ret = WIMLIB_ERR_SPLIT_INVALID;
- goto err;
- }
- swms[part_idx] = w;
+ swm_open_flags |= WIMLIB_OPEN_FLAG_SPLIT_OK;
+ wim_write_flags &= WIMLIB_WRITE_MASK_PUBLIC;
- }
- joined_wim = new_wim_struct();
- if (!joined_wim) {
- ret = WIMLIB_ERR_NOMEM;
- goto err;
- }
+ if (num_swms < 1 || num_swms > 0xffff)
+ return WIMLIB_ERR_INVALID_PARAM;
- if (flags & WIMLIB_OPEN_FLAG_CHECK_INTEGRITY)
- write_flags |= WIMLIB_WRITE_FLAG_CHECK_INTEGRITY;
- if (flags & WIMLIB_OPEN_FLAG_SHOW_PROGRESS)
- write_flags |= WIMLIB_WRITE_FLAG_SHOW_PROGRESS;
+ WIMStruct *swms[num_swms];
+ ZERO_ARRAY(swms);
- ret = begin_write(joined_wim, output_path, write_flags);
- if (ret != 0)
- goto err;
- ret = join_wims(swms, num_swms, joined_wim, write_flags);
-err:
for (i = 0; i < num_swms; i++) {
- /* out_fp is the same in all the swms and joined_wim; only close
- * it one time, when freeing joined_wim. */
- if (swms[i]) {
- swms[i]->out_fp = NULL;
- wimlib_free(swms[i]);
- }
+ ret = wimlib_open_wim(swm_names[i], swm_open_flags, &swms[i],
+ progress_func);
+ if (ret)
+ goto out_free_wims;
+
+ /* Don't open all the parts at the same time, in case there are
+ * a lot of them */
+ close_wim(swms[i]);
}
+
+ qsort(swms, num_swms, sizeof(swms[0]), cmp_swms_by_part_number);
+
+ ret = verify_swm_set(swms[0], &swms[1], num_swms - 1);
+ if (ret)
+ goto out_free_wims;
+
+ ret = wimlib_create_new_wim(wimlib_get_compression_type(swms[0]),
+ &joined_wim);
+ if (ret)
+ goto out_free_wims;
+
+ ret = begin_write(joined_wim, output_path, wim_write_flags);
+ if (ret)
+ goto out_free_wims;
+ ret = join_wims(swms, num_swms, joined_wim, wim_write_flags,
+ progress_func);
+out_free_wims:
+ for (i = 0; i < num_swms; i++)
+ wimlib_free(swms[i]);
wimlib_free(joined_wim);
return ret;
}
git://wimlib.net / wimlib / blobdiff