wimlib.h: document receiving "unmount begin" progress message

[wimlib] / src / reference.c

diff --git a/src/reference.c b/src/reference.c
index 013b285d504f73148d1e91186522cb16c9abdc28..a380d4eeff1dd89715a4993e04aa6c5d21477e34 100644 (file)
--- a/src/reference.c
+++ b/src/reference.c
@@ -1,11 +1,11 @@
 /*
  * reference.c
  *
- * Reference resources from external WIM file(s).
+ * Reference blobs from external WIM file(s).
  */
 
 /*
- * Copyright (C) 2013, 2014 Eric Biggers
+ * Copyright (C) 2013, 2014, 2015 Eric Biggers
  *
  * 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
@@ -26,9 +26,9 @@
 #endif
 
 #include "wimlib.h"
+#include "wimlib/blob_table.h"
 #include "wimlib/error.h"
 #include "wimlib/glob.h"
-#include "wimlib/lookup_table.h"
 #include "wimlib/wim.h"
 
 #define WIMLIB_REF_MASK_PUBLIC (WIMLIB_REF_FLAG_GLOB_ENABLE | \
@@ -36,10 +36,9 @@
 
 struct reference_info {
        WIMStruct *dest_wim;
-       struct list_head new_streams;
-       struct list_head new_subwims;
+       struct list_head new_blobs;
        int ref_flags;
-       struct wim_lookup_table *src_table;
+       struct blob_table *src_table;
 };
 
 static void
@@ -47,81 +46,47 @@ init_reference_info(struct reference_info *info, WIMStruct *dest_wim,
                    int ref_flags)
 {
        info->dest_wim = dest_wim;
-       INIT_LIST_HEAD(&info->new_streams);
-       INIT_LIST_HEAD(&info->new_subwims);
+       INIT_LIST_HEAD(&info->new_blobs);
        info->ref_flags = ref_flags;
 }
 
-static void
-commit_reference_info(struct reference_info *info)
-{
-       list_splice(&info->new_subwims, &info->dest_wim->subwims);
-}
-
 static void
 rollback_reference_info(struct reference_info *info)
 {
-       WIMStruct *subwim;
-       struct wim_lookup_table_entry *lte;
-
-       while (!list_empty(&info->new_subwims)) {
-               subwim = list_first_entry(&info->new_subwims,
-                                         WIMStruct, subwim_node);
-               list_del(&subwim->subwim_node);
-               wimlib_free(subwim);
-       }
-
-       while (!list_empty(&info->new_streams)) {
-               lte = list_first_entry(&info->new_streams,
-                                      struct wim_lookup_table_entry,
-                                      lookup_table_list);
-               list_del(&lte->lookup_table_list);
-               lookup_table_unlink(info->dest_wim->lookup_table, lte);
-               free_lookup_table_entry(lte);
+       struct blob_descriptor *blob;
+
+       while (!list_empty(&info->new_blobs)) {
+               blob = list_first_entry(&info->new_blobs,
+                                       struct blob_descriptor, blob_table_list);
+               list_del(&blob->blob_table_list);
+               blob_table_unlink(info->dest_wim->blob_table, blob);
+               free_blob_descriptor(blob);
        }
 }
 
-static int
-commit_or_rollback_reference_info(struct reference_info *info, int ret)
-{
-       if (unlikely(ret))
-               rollback_reference_info(info);
-       else
-               commit_reference_info(info);
-       return ret;
-}
-
 static bool
-need_stream(const struct reference_info *info,
-           const struct wim_lookup_table_entry *lte)
-{
-       return !lookup_stream(info->dest_wim->lookup_table, lte->hash);
-}
-
-static void
-reference_stream(struct reference_info *info,
-                struct wim_lookup_table_entry *lte)
+need_blob(const struct reference_info *info, const struct blob_descriptor *blob)
 {
-       lookup_table_insert(info->dest_wim->lookup_table, lte);
-       list_add(&lte->lookup_table_list, &info->new_streams);
+       return !lookup_blob(info->dest_wim->blob_table, blob->hash);
 }
 
 static void
-reference_subwim(struct reference_info *info, WIMStruct *subwim)
+reference_blob(struct reference_info *info, struct blob_descriptor *blob)
 {
-       list_add(&subwim->subwim_node, &info->new_subwims);
+       blob_table_insert(info->dest_wim->blob_table, blob);
+       list_add(&blob->blob_table_list, &info->new_blobs);
 }
 
 static int
-lte_clone_if_new(struct wim_lookup_table_entry *lte, void *_info)
+blob_clone_if_new(struct blob_descriptor *blob, void *_info)
 {
        struct reference_info *info = _info;
 
-       if (need_stream(info, lte)) {
-               lte = clone_lookup_table_entry(lte);
-               if (unlikely(!lte))
+       if (need_blob(info, blob)) {
+               blob = clone_blob_descriptor(blob);
+               if (unlikely(!blob))
                        return WIMLIB_ERR_NOMEM;
-               reference_stream(info, lte);
+               reference_blob(info, blob);
        }
        return 0;
 }
@@ -151,25 +116,27 @@ wimlib_reference_resources(WIMStruct *wim, WIMStruct **resource_wims,
        init_reference_info(&info, wim, ref_flags);
 
        for (i = 0; i < num_resource_wims; i++) {
-               ret = for_lookup_table_entry(resource_wims[i]->lookup_table,
-                                            lte_clone_if_new, &info);
+               ret = for_blob_in_table(resource_wims[i]->blob_table,
+                                       blob_clone_if_new, &info);
                if (ret)
                        break;
        }
 
-       return commit_or_rollback_reference_info(&info, ret);
+       if (unlikely(ret))
+               rollback_reference_info(&info);
+       return ret;
 }
 
 static int
-lte_gift(struct wim_lookup_table_entry *lte, void *_info)
+blob_gift(struct blob_descriptor *blob, void *_info)
 {
        struct reference_info *info = _info;
 
-       lookup_table_unlink(info->src_table, lte);
-       if (need_stream(info, lte))
-               reference_stream(info, lte);
+       blob_table_unlink(info->src_table, blob);
+       if (need_blob(info, blob))
+               reference_blob(info, blob);
        else
-               free_lookup_table_entry(lte);
+               free_blob_descriptor(blob);
        return 0;
 }
 
@@ -186,9 +153,9 @@ reference_resource_path(struct reference_info *info, const tchar *path,
        if (ret)
                return ret;
 
-       info->src_table = src_wim->lookup_table;
-       for_lookup_table_entry(src_wim->lookup_table, lte_gift, info);
-       reference_subwim(info, src_wim);
+       info->src_table = src_wim->blob_table;
+       for_blob_in_table(src_wim->blob_table, blob_gift, info);
+       wimlib_free(src_wim);
        return 0;
 }
 
@@ -272,5 +239,7 @@ wimlib_reference_resource_files(WIMStruct *wim,
        else
                ret = reference_resource_paths(&info, paths_or_globs, count, open_flags);
 
-       return commit_or_rollback_reference_info(&info, ret);
+       if (unlikely(ret))
+               rollback_reference_info(&info);
+       return ret;
 }