X-Git-Url: https://wimlib.net/git/?a=blobdiff_plain;f=src%2Flookup_table.h;h=dbcf55543254fc18ca48e78d7b18ff11a493b87e;hb=213d64619675a59db71fed619bf47c1870b0e2e2;hp=cbf5daf36b091c8a1d82ebac4e9084f15e80abb2;hpb=140c0920af14b19292e8b7694bb91864c8f52f3c;p=wimlib diff --git a/src/lookup_table.h b/src/lookup_table.h index cbf5daf3..dbcf5554 100644 --- a/src/lookup_table.h +++ b/src/lookup_table.h @@ -36,21 +36,24 @@ struct ntfs_location { }; #endif -/* - * An entry in the lookup table in the WIM file. +/* + * An entry in the lookup table in the WIM file. * - * It is used to find data streams for files in the WIM. + * It is used to find data streams for files in the WIM. * * Metadata resources and reparse point data buffers will also have lookup table * entries associated with the data. * * The lookup_table_entry for a given dentry or alternate stream entry in the - * WIM is found using the SHA1 message digest field. + * WIM is found using the SHA1 message digest field. */ struct lookup_table_entry { /* List of lookup table entries in this hash bucket */ - struct hlist_node hash_list; + union { + struct hlist_node hash_list; + struct list_head list; + }; /* Location and size of the stream in the WIM, whether it is compressed * or not, and whether it's a metadata resource or not. This is an @@ -177,7 +180,10 @@ struct lookup_table_entry { * - The stream may have a different compressed size in the * new WIM if the compression type changed */ - struct resource_entry output_resource_entry; + union { + struct resource_entry output_resource_entry; + struct list_head msg_list; + }; /* This field is used for the special hardlink or symlink image * extraction mode. In these mode, all identical files are linked @@ -201,6 +207,11 @@ static inline u64 wim_resource_size(const struct lookup_table_entry *lte) return lte->resource_entry.original_size; } +static inline u64 wim_resource_chunks(const struct lookup_table_entry *lte) +{ + return (wim_resource_size(lte) + WIM_CHUNK_SIZE - 1) / WIM_CHUNK_SIZE; +} + static inline u64 wim_resource_compressed_size(const struct lookup_table_entry *lte) { @@ -223,36 +234,24 @@ wim_resource_compression_type(const struct lookup_table_entry *lte) extern struct lookup_table *new_lookup_table(size_t capacity); -extern void lookup_table_insert(struct lookup_table *table, +extern void lookup_table_insert(struct lookup_table *table, struct lookup_table_entry *lte); /* Unlinks a lookup table entry from the table; does not free it. */ -static inline void lookup_table_unlink(struct lookup_table *table, +static inline void lookup_table_unlink(struct lookup_table *table, struct lookup_table_entry *lte) { hlist_del(<e->hash_list); table->num_entries--; } +extern struct lookup_table_entry *new_lookup_table_entry(); extern struct lookup_table_entry * -lookup_table_decrement_refcnt(struct lookup_table* table, const u8 hash[]); - -#ifdef WITH_FUSE -extern struct lookup_table_entry * -lte_decrement_num_opened_fds(struct lookup_table_entry *lte, - struct lookup_table *table); -#endif - -extern struct lookup_table_entry * -lte_decrement_refcnt(struct lookup_table_entry *lte, - struct lookup_table *table); - - -extern struct lookup_table_entry *new_lookup_table_entry(); +clone_lookup_table_entry(const struct lookup_table_entry *lte); -extern int for_lookup_table_entry(struct lookup_table *table, - int (*visitor)(struct lookup_table_entry *, void *), +extern int for_lookup_table_entry(struct lookup_table *table, + int (*visitor)(struct lookup_table_entry *, void *), void *arg); extern struct lookup_table_entry * @@ -263,6 +262,12 @@ extern int lookup_resource(WIMStruct *w, const char *path, struct lookup_table_entry **lte_ret, u16 *stream_idx_ret); +extern void lte_decrement_refcnt(struct lookup_table_entry *lte, + struct lookup_table *table); +#ifdef WITH_FUSE +extern void lte_decrement_num_opened_fds(struct lookup_table_entry *lte); +#endif + extern int lte_zero_out_refcnt(struct lookup_table_entry *entry, void *ignore); extern int lte_zero_real_refcnt(struct lookup_table_entry *entry, void *ignore); extern int lte_free_extracted_file(struct lookup_table_entry *lte, void *ignone); @@ -278,6 +283,7 @@ extern int write_lookup_table_entry(struct lookup_table_entry *lte, void *__out) extern void free_lookup_table_entry(struct lookup_table_entry *lte); extern int dentry_resolve_ltes(struct dentry *dentry, void *__table); +extern int dentry_unresolve_ltes(struct dentry *dentry, void *ignore); /* Writes the lookup table to the output file. */ static inline int write_lookup_table(struct lookup_table *table, FILE *out) @@ -286,7 +292,7 @@ static inline int write_lookup_table(struct lookup_table *table, FILE *out) } /* Unlinks and frees an entry from a lookup table. */ -static inline void lookup_table_remove(struct lookup_table *table, +static inline void lookup_table_remove(struct lookup_table *table, struct lookup_table_entry *lte) { lookup_table_unlink(table, lte); @@ -312,7 +318,7 @@ inode_stream_lte_resolved(const struct inode *inode, unsigned stream_idx) static inline struct lookup_table_entry * inode_stream_lte_unresolved(const struct inode *inode, unsigned stream_idx, - const struct lookup_table *table) + const struct lookup_table *table) { wimlib_assert(!inode->resolved); wimlib_assert(stream_idx <= inode->num_ads); @@ -325,7 +331,7 @@ inode_stream_lte_unresolved(const struct inode *inode, unsigned stream_idx, inode->ads_entries[ stream_idx - 1].hash); } -/* +/* * Returns the lookup table entry for stream @stream_idx of the inode, where * stream_idx = 0 means the default un-named file stream, and stream_idx >= 1 * corresponds to an alternate data stream. @@ -366,7 +372,7 @@ static inline const u8 *inode_stream_hash_resolved(const struct inode *inode, return zero_hash; } -/* +/* * Returns the hash for stream @stream_idx of the inode, where stream_idx = 0 * means the default un-named file stream, and stream_idx >= 1 corresponds to an * alternate data stream.