]> wimlib.net Git - wimlib/blobdiff - src/split.c
Lots of changes
[wimlib] / src / split.c
index df384f82d30fdd0bddc10083f5a17e66a3ed7da7..091fa3fecf124585a4364fd051ea83ace5830724 100644 (file)
@@ -33,25 +33,22 @@ struct split_args {
        char *swm_base_name;
        size_t swm_base_name_len;
        const char *swm_suffix;
-       struct list_head *lte_list;
-       int    part_number;
+       struct list_head lte_list;
+       int    cur_part_number;
        int    write_flags;
        long   size_remaining;
        size_t part_size;
-       u64    total_bytes;
-       u64    total_bytes_written;
+       wimlib_progress_func_t progress_func;
+       union wimlib_progress_info progress;
 };
 
 static int finish_swm(WIMStruct *w, struct list_head *lte_list,
-                     int write_flags)
+                     int write_flags, wimlib_progress_func_t progress_func)
 {
        off_t lookup_table_offset = ftello(w->out_fp);
        int ret;
        struct lookup_table_entry *lte;
 
-       DEBUG("Writing lookup table for SWM (offset %"PRIu64")",
-                       lookup_table_offset);
-
        list_for_each_entry(lte, lte_list, staging_list) {
                ret = write_lookup_table_entry(lte, w->out_fp);
                if (ret != 0)
@@ -68,8 +65,9 @@ static int finish_swm(WIMStruct *w, struct list_head *lte_list,
        w->hdr.lookup_table_res_entry.original_size =
                                xml_data_offset - lookup_table_offset;
        w->hdr.lookup_table_res_entry.flags = WIM_RESHDR_FLAG_METADATA;
-       return finish_write(w, WIM_ALL_IMAGES,
-                           write_flags | WIMLIB_WRITE_FLAG_NO_LOOKUP_TABLE);
+       return finish_write(w, WIMLIB_ALL_IMAGES,
+                           write_flags | WIMLIB_WRITE_FLAG_NO_LOOKUP_TABLE,
+                           progress_func);
 }
 
 static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args)
@@ -88,24 +86,29 @@ static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args)
                /* No space for this resource.  Finish the previous swm and
                 * start a new one. */
 
-               ret = finish_swm(w, args->lte_list, args->write_flags);
+               ret = finish_swm(w, &args->lte_list, args->write_flags,
+                                args->progress_func);
                if (ret != 0)
                        return ret;
-               INIT_LIST_HEAD(args->lte_list);
+
+               if (args->progress_func) {
+                       args->progress_func(WIMLIB_PROGRESS_MSG_SPLIT_END_PART,
+                                           &args->progress);
+               }
+
+               INIT_LIST_HEAD(&args->lte_list);
+               args->cur_part_number++;
 
                sprintf(args->swm_base_name + args->swm_base_name_len, "%d%s",
-                       ++args->part_number, args->swm_suffix);
+                       args->cur_part_number, args->swm_suffix);
 
-               w->hdr.part_number = args->part_number;
+               w->hdr.part_number = args->cur_part_number;
 
-               if (args->write_flags & WIMLIB_OPEN_FLAG_SHOW_PROGRESS)
-                       printf("Writing `%s' (%"PRIu64" of %"PRIu64" bytes, "
-                              "%.0f%% done)\n",
-                              args->swm_base_name,
-                              args->total_bytes_written,
-                              args->total_bytes,
-                              (double)args->total_bytes_written /
-                                  (double)args->total_bytes * 100.0);
+               if (args->progress_func) {
+                       args->progress.split.cur_part_number = args->cur_part_number;
+                       args->progress_func(WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART,
+                                           &args->progress);
+               }
 
                ret = begin_write(w, args->swm_base_name, args->write_flags);
                if (ret != 0)
@@ -113,119 +116,120 @@ static int copy_resource_to_swm(struct lookup_table_entry *lte, void *__args)
                args->size_remaining = args->part_size;
        }
        args->size_remaining -= lte->resource_entry.size;
-       args->total_bytes_written += lte->resource_entry.size;
-       list_add(&lte->staging_list, args->lte_list);
+       args->progress.split.completed_bytes += lte->resource_entry.size;
+       list_add(&lte->staging_list, &args->lte_list);
        return copy_resource(lte, w);
 }
 
 /* Splits the WIM file @wimfile into multiple parts prefixed by @swm_name with
  * size at most @part_size. */
-WIMLIBAPI int wimlib_split(const char *wimfile, const char *swm_name,
-                          size_t part_size, int flags)
+WIMLIBAPI int wimlib_split(WIMStruct *w, const char *swm_name,
+                          size_t part_size, int write_flags,
+                          wimlib_progress_func_t progress_func)
 {
        int ret;
-       WIMStruct *w;
-       int write_flags = 0;
-       size_t swm_name_len = strlen(swm_name);
+       struct wim_header hdr_save;
+       struct split_args args;
+       const char *swm_suffix;
+       size_t swm_name_len;
        size_t swm_base_name_len;
-       char name[swm_name_len + 20];
-       char *swm_suffix;
 
-       long size_remaining = part_size;
-       u64 total_bytes_written = 0;
-       u64 total_bytes;
+       if (!w || !swm_name || part_size == 0)
+               return WIMLIB_ERR_INVALID_PARAM;
 
-       ret = wimlib_open_wim(wimfile, flags, &w);
-       if (ret != 0)
-               return ret;
+       if (w->hdr.total_parts != 1)
+               return WIMLIB_ERR_SPLIT_UNSUPPORTED;
 
-       total_bytes = wim_info_get_total_bytes(w->wim_info);
+       write_flags &= WIMLIB_WRITE_MASK_PUBLIC;
 
-       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;
+       swm_name_len = strlen(swm_name);
+       char swm_base_name[swm_name_len + 20];
 
+       memcpy(&hdr_save, &w->hdr, sizeof(struct wim_header));
        w->hdr.flags |= WIM_HDR_FLAG_SPANNED;
        w->hdr.boot_idx = 0;
        randomize_byte_array(w->hdr.guid, WIM_GID_LEN);
        ret = begin_write(w, swm_name, write_flags);
        if (ret != 0)
-               return ret;
+               goto out;
+
+       memcpy(swm_base_name, swm_name, swm_name_len + 1);
 
        swm_suffix = strchr(swm_name, '.');
-       memcpy(name, swm_name, swm_name_len + 1);
        if (swm_suffix) {
                swm_base_name_len = swm_suffix - swm_name;
        } else {
                swm_base_name_len = swm_name_len;
-               name[sizeof(name) - 1] = '\0';
-               swm_suffix = &name[sizeof(name) - 1];
+               swm_base_name[sizeof(swm_base_name) - 1] = '\0';
+               swm_suffix = &swm_base_name[sizeof(swm_base_name) - 1];
        }
 
-       if (write_flags & WIMLIB_OPEN_FLAG_SHOW_PROGRESS)
-               printf("Writing `%s' (%.2f %% done)\n",
-                       swm_name,
-                       (double)total_bytes_written /
-                               (double)total_bytes * 100.0);
+       args.w                              = w;
+       args.swm_base_name                  = swm_base_name;
+       args.swm_base_name_len              = swm_base_name_len;
+       args.swm_suffix                     = swm_suffix;
+       INIT_LIST_HEAD(&args.lte_list);
+       args.cur_part_number                = 1;
+       args.write_flags                    = write_flags;
+       args.size_remaining                 = part_size;
+       args.part_size                      = part_size;
+       args.progress_func                  = progress_func;
+       args.progress.split.total_bytes     = lookup_table_total_stream_size(w->lookup_table);
+       args.progress.split.cur_part_number = 1;
+       args.progress.split.completed_bytes = 0;
+       args.progress.split.part_name       = swm_base_name;
+
+       if (progress_func) {
+               progress_func(WIMLIB_PROGRESS_MSG_SPLIT_BEGIN_PART,
+                             &args.progress);
+       }
 
        w->write_metadata = true;
-       LIST_HEAD(lte_list);
        for (int i = 0; i < w->hdr.image_count; i++) {
                struct lookup_table_entry *metadata_lte;
-
-               DEBUG("Writing metadata resource %d", i);
-
                metadata_lte = w->image_metadata[i].metadata_lte;
                ret = copy_resource(metadata_lte, w);
                if (ret != 0)
-                       return ret;
-               size_remaining -= metadata_lte->resource_entry.size;
-               total_bytes_written += metadata_lte->resource_entry.size;
-               list_add(&metadata_lte->staging_list, &lte_list);
+                       goto out;
+               args.size_remaining -= metadata_lte->resource_entry.size;
+               args.progress.split.completed_bytes += metadata_lte->resource_entry.size;
+               list_add(&metadata_lte->staging_list, &args.lte_list);
        }
        w->write_metadata = false;
 
-       struct split_args args = {
-               .w                 = w,
-               .swm_base_name     = name,
-               .swm_base_name_len = swm_base_name_len,
-               .swm_suffix        = swm_suffix,
-               .lte_list          = &lte_list,
-               .part_number       = 1,
-               .write_flags       = write_flags,
-               .size_remaining    = size_remaining,
-               .part_size         = part_size,
-               .total_bytes        = total_bytes,
-               .total_bytes_written = total_bytes_written,
-       };
-
-       ret = for_lookup_table_entry(w->lookup_table, copy_resource_to_swm, &args);
+       ret = for_lookup_table_entry(w->lookup_table,
+                                    copy_resource_to_swm, &args);
        if (ret != 0)
-               return ret;
+               goto out;
 
-       ret = finish_swm(w, &lte_list, write_flags);
+       ret = finish_swm(w, &args.lte_list, write_flags, progress_func);
        if (ret != 0)
-               return ret;
+               goto out;
 
+       if (progress_func) {
+               progress_func(WIMLIB_PROGRESS_MSG_SPLIT_END_PART,
+                             &args.progress);
+       }
 
        /* The swms are all ready now, except the total_parts and part_number
         * fields in their headers are wrong (we don't know the total parts
         * until they are all written).  Fix them. */
-       int total_parts = args.part_number;
+       int total_parts = args.cur_part_number;
        for (int i = 1; i <= total_parts; i++) {
-               const char *p;
+               const char *part_name;
                if (i == 1) {
-                       p = swm_name;
+                       part_name = swm_name;
                } else {
-                       sprintf(name + swm_base_name_len, "%d", i);
-                       p = strcat(name, swm_suffix);
+                       sprintf(swm_base_name + swm_base_name_len, "%d%s",
+                               i, swm_suffix);
+                       part_name = swm_base_name;
                }
 
-               FILE *fp = fopen(p, "r+b");
+               FILE *fp = fopen(part_name, "r+b");
                if (!fp) {
-                       ERROR_WITH_ERRNO("Failed to open `%s'", p);
-                       return WIMLIB_ERR_OPEN;
+                       ERROR_WITH_ERRNO("Failed to open `%s'", part_name);
+                       ret = WIMLIB_ERR_OPEN;
+                       goto out;
                }
                u8 buf[4];
                put_u16(&buf[0], i);
@@ -235,12 +239,12 @@ WIMLIBAPI int wimlib_split(const char *wimfile, const char *swm_name,
                                fwrite(buf, 1, sizeof(buf), fp) != sizeof(buf)
                                || fclose(fp) != 0) {
                        ERROR_WITH_ERRNO("Error overwriting header of `%s'",
-                                        name);
-                       return WIMLIB_ERR_WRITE;
+                                        part_name);
+                       ret = WIMLIB_ERR_WRITE;
+                       break;
                }
        }
-       if (write_flags & WIMLIB_OPEN_FLAG_SHOW_PROGRESS)
-               puts("Done!");
-       wimlib_free(w);
-       return 0;
+out:
+       memcpy(&w->hdr, &hdr_save, sizeof(struct wim_header));
+       return ret;
 }