wimfs_write(), dentry_to_stbuf()

[wimlib] / src / dentry.h

diff --git a/src/dentry.h b/src/dentry.h
index 2aabf02e9899a674dccfea67cf674645af2254d0..3a3432eadbeafe36a41839235404b53b33884d2f 100644 (file)
--- a/src/dentry.h
+++ b/src/dentry.h
@@ -3,8 +3,10 @@
 
 #include "util.h"
 #include "config.h"
+#include "list.h"
 #include <string.h>
 
+
 struct stat;
 struct lookup_table;
 typedef struct WIMStruct WIMStruct;
@@ -59,7 +61,7 @@ struct ads_entry {
        u16 stream_name_len;
 
        /* Length of stream name (UTF-8) */
-       u16 stream_name_len_utf8;
+       u16 stream_name_utf8_len;
 
        /* Stream name (UTF-16) */
        char *stream_name;
@@ -74,6 +76,22 @@ static inline u64 ads_entry_length(const struct ads_entry *entry)
        return (len + 7) & ~7;
 }
 
+static inline void destroy_ads_entry(struct ads_entry *entry)
+{
+       FREE(entry->stream_name);
+       FREE(entry->stream_name_utf8);
+       memset(entry, 0, sizeof(entry));
+}
+
+static inline bool ads_entry_has_name(const struct ads_entry *entry,
+                                     const char *name, size_t name_len)
+{
+       if (entry->stream_name_utf8_len != name_len)
+               return false;
+       return memcmp(entry->stream_name_utf8, name, name_len) == 0;
+}
+
+
 /* In-memory structure for a directory entry.  There is a directory tree for
  * each image in the WIM.  */
 struct dentry {
@@ -174,9 +192,23 @@ struct dentry {
        /* Alternate stream entries for this dentry. */
        struct ads_entry *ads_entries;
 
-       /* Number of references to the dentry tree itself, as in multiple
-        * WIMStructs */
-       int refcnt;
+       union {
+               /* Number of references to the dentry tree itself, as in multiple
+                * WIMStructs */
+               int refcnt;
+
+               /* Number of times this dentry has been opened (only for
+                * directories!) */
+               u32 num_times_opened;
+       };
+
+       /* List of dentries in the hard link set */
+       enum {
+               GROUP_INDEPENDENT,
+               GROUP_MASTER,
+               GROUP_SLAVE
+       } link_group_master_status;
+       struct list_head link_group_list;
 };
 
 /* Return hash of the "unnamed" (default) data stream. */
@@ -192,12 +224,33 @@ static inline const u8 *dentry_hash(const struct dentry *dentry)
        return dentry->hash;
 }
 
+static inline size_t dentry_link_group_size(const struct dentry *dentry)
+{
+       const struct list_head *cur = &dentry->link_group_list;
+       size_t size = 0;
+       do {
+               size++;
+               cur = cur->next;
+       } while (cur != &dentry->link_group_list);
+       return size;
+}
+
+extern struct ads_entry *dentry_get_ads_entry(struct dentry *dentry,
+                                             const char *stream_name);
+
+extern struct ads_entry *dentry_add_ads(struct dentry *dentry,
+                                       const char *stream_name);
+
+extern void dentry_remove_ads(struct dentry *dentry, struct ads_entry *entry);
+
+extern const char *path_stream_name(const char *path);
+
 extern u64 dentry_total_length(const struct dentry *dentry);
 
 extern void stbuf_to_dentry(const struct stat *stbuf, struct dentry *dentry);
 
-extern void dentry_to_stbuf(const struct dentry *dentry, struct stat *stbuf, 
-                           const struct lookup_table *table);
+extern int dentry_to_stbuf(const struct dentry *dentry, struct stat *stbuf, 
+                          const struct lookup_table *table);
 
 extern int for_dentry_in_tree(struct dentry *root, 
                              int (*visitor)(struct dentry*, void*), 
@@ -209,7 +262,11 @@ extern int for_dentry_in_tree_depth(struct dentry *root,
 
 extern int calculate_dentry_full_path(struct dentry *dentry, void *ignore);
 extern void calculate_subdir_offsets(struct dentry *dentry, u64 *subdir_offset_p);
+extern int get_names(char **name_utf16_ret, char **name_utf8_ret,
+                    u16 *name_utf16_len_ret, u16 *name_utf8_len_ret,
+                    const char *name);
 extern int change_dentry_name(struct dentry *dentry, const char *new_name);
+extern int change_ads_name(struct ads_entry *entry, const char *new_name);
 
 extern void unlink_dentry(struct dentry *dentry);
 extern void link_dentry(struct dentry *dentry, struct dentry *parent);
@@ -225,7 +282,12 @@ extern void dentry_update_all_timestamps(struct dentry *dentry);
 extern void init_dentry(struct dentry *dentry, const char *name);
 extern struct dentry *new_dentry(const char *name);
 
+extern void dentry_free_ads_entries(struct dentry *dentry);
 extern void free_dentry(struct dentry *dentry);
+extern void put_dentry(struct dentry *dentry);
+extern int share_dentry_ads(struct dentry *master,
+                           struct dentry *slave);
+extern struct dentry *clone_dentry(struct dentry *old);
 extern void free_dentry_tree(struct dentry *root,
                             struct lookup_table *lookup_table, 
                             bool lt_decrement_refcnt);
@@ -247,22 +309,9 @@ extern int read_dentry_tree(const u8 metadata_resource[],
 
 extern u8 *write_dentry_tree(const struct dentry *tree, u8 *p);
 
-extern int dentry_set_symlink_buf(struct dentry *dentry,
-                                 const u8 symlink_buf_hash[]);
 
 /* Inline utility functions for WIMDentries */
 
-/*
- * Returns true if @dentry has the UTF-8 file name @name that has length
- * @name_len.
- */
-static inline bool dentry_has_name(const struct dentry *dentry, const char *name, 
-                                  size_t name_len)
-{
-       if (dentry->file_name_utf8_len != name_len)
-               return false;
-       return memcmp(dentry->file_name_utf8, name, name_len) == 0;
-}
 
 static inline bool dentry_is_root(const struct dentry *dentry)
 {
@@ -281,7 +330,8 @@ static inline bool dentry_is_only_child(const struct dentry *dentry)
 
 static inline bool dentry_is_directory(const struct dentry *dentry)
 {
-       return (dentry->attributes & FILE_ATTRIBUTE_DIRECTORY) != 0;
+       return (dentry->attributes & FILE_ATTRIBUTE_DIRECTORY)
+               && !(dentry->attributes & FILE_ATTRIBUTE_REPARSE_POINT);
 }
 
 /* For our purposes, we consider "real" symlinks and "junction points" to both