X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Fexport_image.c;h=425e4a4d1c521d13140493be205b5ededd1af2d2;hp=81c66594227c77c4f0cb2a64eeb6153b9c9354fe;hb=0ac1c0afd3f1b4341409e66cb31c94053d1b8988;hpb=da295f258b60e1593de305385c0669eac4b76644 diff --git a/src/export_image.c b/src/export_image.c index 81c66594..425e4a4d 100644 --- a/src/export_image.c +++ b/src/export_image.c @@ -3,22 +3,20 @@ */ /* - * Copyright (C) 2012, 2013 Eric Biggers + * Copyright (C) 2012, 2013, 2014 Eric Biggers * - * This file is part of wimlib, a library for working with WIM files. + * This file 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 3 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. - * - * 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 + * This file 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. * - * You should have received a copy of the GNU General Public License - * along with wimlib; if not, see http://www.gnu.org/licenses/. + * You should have received a copy of the GNU Lesser General Public License + * along with this file; if not, see http://www.gnu.org/licenses/. */ #ifdef HAVE_CONFIG_H @@ -26,23 +24,44 @@ #endif #include "wimlib.h" -#include "wimlib/dentry.h" #include "wimlib/error.h" +#include "wimlib/inode.h" #include "wimlib/lookup_table.h" #include "wimlib/metadata.h" #include "wimlib/xml.h" -#include + +static int +lte_set_not_exported(struct wim_lookup_table_entry *lte, void *_ignore) +{ + lte->out_refcnt = 0; + lte->was_exported = 0; + return 0; +} + +static int +lte_rollback_export(struct wim_lookup_table_entry *lte, void *_lookup_table) +{ + struct wim_lookup_table *lookup_table = _lookup_table; + + lte->refcnt -= lte->out_refcnt; + if (lte->was_exported) { + lookup_table_unlink(lookup_table, lte); + free_lookup_table_entry(lte); + } + return 0; +} static int inode_export_streams(struct wim_inode *inode, - const struct wim_lookup_table *src_lookup_table, - struct wim_lookup_table *dest_lookup_table) + struct wim_lookup_table *src_lookup_table, + struct wim_lookup_table *dest_lookup_table, + bool gift) { unsigned i; const u8 *hash; struct wim_lookup_table_entry *src_lte, *dest_lte; - inode_unresolve_ltes(inode); + inode_unresolve_streams(inode); for (i = 0; i <= inode->i_num_ads; i++) { /* Retrieve SHA1 message digest of stream to export. */ @@ -52,20 +71,26 @@ inode_export_streams(struct wim_inode *inode, /* Search for the stream (via SHA1 message digest) in the * destination WIM. */ - dest_lte = __lookup_resource(dest_lookup_table, hash); + dest_lte = lookup_stream(dest_lookup_table, hash); if (!dest_lte) { /* Stream not yet present in destination WIM. Search * for it in the source WIM, then export it into the * destination WIM. */ - src_lte = __lookup_resource(src_lookup_table, hash); + src_lte = lookup_stream(src_lookup_table, hash); if (!src_lte) - return resource_not_found_error(inode, hash); - - dest_lte = clone_lookup_table_entry(src_lte); - if (!dest_lte) - return WIMLIB_ERR_NOMEM; + return stream_not_found_error(inode, hash); + + if (gift) { + dest_lte = src_lte; + lookup_table_unlink(src_lookup_table, src_lte); + } else { + dest_lte = clone_lookup_table_entry(src_lte); + if (!dest_lte) + return WIMLIB_ERR_NOMEM; + } dest_lte->refcnt = 0; dest_lte->out_refcnt = 0; + dest_lte->was_exported = 1; lookup_table_insert(dest_lookup_table, dest_lte); } @@ -81,19 +106,6 @@ inode_export_streams(struct wim_inode *inode, return 0; } -static int -lte_unexport(struct wim_lookup_table_entry *lte, void *_lookup_table) -{ - struct wim_lookup_table *lookup_table = _lookup_table; - - lte->refcnt -= lte->out_refcnt; - if (lte->refcnt == 0) { - lookup_table_unlink(lookup_table, lte); - free_lookup_table_entry(lte); - } - return 0; -} - /* API function documented in wimlib.h */ WIMLIBAPI int wimlib_export_image(WIMStruct *src_wim, @@ -101,29 +113,30 @@ wimlib_export_image(WIMStruct *src_wim, WIMStruct *dest_wim, const tchar *dest_name, const tchar *dest_description, - int export_flags, - wimlib_progress_func_t progress_func) + int export_flags) { int ret; - int start_image; - int end_image; + int start_src_image; + int end_src_image; + int orig_dest_image_count; int image; - u32 orig_dest_boot_idx; - u32 orig_dest_image_count; + bool all_images = (src_image == WIMLIB_ALL_IMAGES); /* Check for sane parameters. */ + if (export_flags & ~(WIMLIB_EXPORT_FLAG_BOOT | + WIMLIB_EXPORT_FLAG_NO_NAMES | + WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS | + WIMLIB_EXPORT_FLAG_GIFT | + WIMLIB_EXPORT_FLAG_WIMBOOT)) + return WIMLIB_ERR_INVALID_PARAM; + if (src_wim == NULL || dest_wim == NULL) return WIMLIB_ERR_INVALID_PARAM; if (!wim_has_metadata(src_wim) || !wim_has_metadata(dest_wim)) return WIMLIB_ERR_METADATA_NOT_FOUND; - /* Destination WIM must be writable. */ - ret = can_modify_wim(dest_wim); - if (ret) - return ret; - - if (src_image == WIMLIB_ALL_IMAGES) { + if (all_images) { /* Multi-image export. */ if ((!(export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES) && dest_name) || @@ -135,12 +148,13 @@ wimlib_export_image(WIMStruct *src_wim, "multiple images"); return WIMLIB_ERR_INVALID_PARAM; } - start_image = 1; - end_image = src_wim->hdr.image_count; + start_src_image = 1; + end_src_image = src_wim->hdr.image_count; } else { - start_image = src_image; - end_image = src_image; + start_src_image = src_image; + end_src_image = src_image; } + orig_dest_image_count = dest_wim->hdr.image_count; /* Stream checksums must be known before proceeding. */ ret = wim_checksum_unhashed_streams(src_wim); @@ -150,49 +164,33 @@ wimlib_export_image(WIMStruct *src_wim, if (ret) return ret; - /* Zero 'out_refcnt' in all lookup table entries in the destination WIM; - * this tracks the number of references found from the source WIM - * image(s). */ - for_lookup_table_entry(dest_wim->lookup_table, lte_zero_out_refcnt, - NULL); - - /* Save the original count of images in the destination WIM and the boot - * index (used if rollback necessary). */ - orig_dest_image_count = dest_wim->hdr.image_count; - orig_dest_boot_idx = dest_wim->hdr.boot_idx; + /* Enable rollbacks */ + for_lookup_table_entry(dest_wim->lookup_table, lte_set_not_exported, NULL); /* Export each requested image. */ - for (image = start_image; image <= end_image; image++) { + for (src_image = start_src_image; + src_image <= end_src_image; + src_image++) + { const tchar *next_dest_name, *next_dest_description; struct wim_image_metadata *src_imd; struct wim_inode *inode; - DEBUG("Exporting image %d from \"%"TS"\"", - image, src_wim->filename); - /* Determine destination image name and description. */ - if (export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES) { - next_dest_name = NULL; - } else if (dest_name) { + if (export_flags & WIMLIB_EXPORT_FLAG_NO_NAMES) + next_dest_name = T(""); + else if (dest_name) next_dest_name = dest_name; - } else { - next_dest_name = wimlib_get_image_name(src_wim, - image); - } + else + next_dest_name = wimlib_get_image_name(src_wim, src_image); - DEBUG("Using name \"%"TS"\"", next_dest_name); - - if (export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS) { - next_dest_description = NULL; - } if (dest_description) { + if (export_flags & WIMLIB_EXPORT_FLAG_NO_DESCRIPTIONS) + next_dest_description = T(""); + else if (dest_description) next_dest_description = dest_description; - } else { - next_dest_description = wimlib_get_image_description( - src_wim, image); - } - - DEBUG("Using description \"%"TS"\"", next_dest_description); + else + next_dest_description = wimlib_get_image_description(src_wim, src_image); /* Check for name conflict. */ if (wimlib_image_name_in_use(dest_wim, next_dest_name)) { @@ -203,7 +201,7 @@ wimlib_export_image(WIMStruct *src_wim, } /* Load metadata for source image into memory. */ - ret = select_wim_image(src_wim, image); + ret = select_wim_image(src_wim, src_image); if (ret) goto out_rollback; @@ -214,13 +212,14 @@ wimlib_export_image(WIMStruct *src_wim, image_for_each_inode(inode, src_imd) { ret = inode_export_streams(inode, src_wim->lookup_table, - dest_wim->lookup_table); + dest_wim->lookup_table, + export_flags & WIMLIB_EXPORT_FLAG_GIFT); if (ret) goto out_rollback; } /* Export XML information into the destination WIM. */ - ret = xml_export_image(src_wim->wim_info, image, + ret = xml_export_image(src_wim->wim_info, src_image, &dest_wim->wim_info, next_dest_name, next_dest_description); if (ret) @@ -237,22 +236,33 @@ wimlib_export_image(WIMStruct *src_wim, * this. */ src_imd->modified = 1; - /* Set boot index in destination WIM. */ - if ((export_flags & WIMLIB_EXPORT_FLAG_BOOT) && - (src_image != WIMLIB_ALL_IMAGES || - image == src_wim->hdr.boot_idx)) - { - DEBUG("Marking destination image %u as bootable.", - dest_wim->hdr.image_count); - dest_wim->hdr.boot_idx = dest_wim->hdr.image_count; - } - } - /* Set the reparse point fixup flag on the destination WIM if the flag - * is set on the source WIM. */ + + /* Image export complete. Finish by setting any needed special metadata + * on the destination WIM. */ + if (src_wim->hdr.flags & WIM_HDR_FLAG_RP_FIX) dest_wim->hdr.flags |= WIM_HDR_FLAG_RP_FIX; - DEBUG("Export operation successful."); + + for (src_image = start_src_image; + src_image <= end_src_image; + src_image++) + { + int dst_image = orig_dest_image_count + 1 + + (src_image - start_src_image); + + if (export_flags & WIMLIB_EXPORT_FLAG_WIMBOOT) + wim_info_set_wimboot(dest_wim->wim_info, dst_image, true); + + if ((export_flags & WIMLIB_EXPORT_FLAG_BOOT) && + (!all_images || src_image == src_wim->hdr.boot_idx)) + dest_wim->hdr.boot_idx = dst_image; + } + + if (export_flags & WIMLIB_EXPORT_FLAG_GIFT) { + free_lookup_table(src_wim->lookup_table); + src_wim->lookup_table = NULL; + } return 0; out_rollback: @@ -266,8 +276,7 @@ out_rollback: put_image_metadata(dest_wim->image_metadata[ --dest_wim->hdr.image_count], NULL); } - for_lookup_table_entry(dest_wim->lookup_table, lte_unexport, + for_lookup_table_entry(dest_wim->lookup_table, lte_rollback_export, dest_wim->lookup_table); - dest_wim->hdr.boot_idx = orig_dest_boot_idx; return ret; }