name-hash: retire unused index_name_exists()

[thirdparty/git.git] / cache.h

diff --git a/cache.h b/cache.h
index a47b9c03036d41e8067a843dda305bc9b6161255..353c687c19413589a95484bf7458500dc43968a5 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -3,7 +3,7 @@
 
 #include "git-compat-util.h"
 #include "strbuf.h"
-#include "hash.h"
+#include "hashmap.h"
 #include "advice.h"
 #include "gettext.h"
 #include "convert.h"
@@ -130,12 +130,12 @@ struct stat_data {
 };
 
 struct cache_entry {
+       struct hashmap_entry ent;
        struct stat_data ce_stat_data;
        unsigned int ce_mode;
        unsigned int ce_flags;
        unsigned int ce_namelen;
        unsigned char sha1[20];
-       struct cache_entry *next;
        char name[FLEX_ARRAY]; /* more */
 };
 
@@ -159,7 +159,6 @@ struct cache_entry {
 #define CE_ADDED             (1 << 19)
 
 #define CE_HASHED            (1 << 20)
-#define CE_UNHASHED          (1 << 21)
 #define CE_WT_REMOVE         (1 << 22) /* remove in work directory */
 #define CE_CONFLICTED        (1 << 23)
 
@@ -195,17 +194,18 @@ struct pathspec;
  * Copy the sha1 and stat state of a cache entry from one to
  * another. But we never change the name, or the hash state!
  */
-#define CE_STATE_MASK (CE_HASHED | CE_UNHASHED)
 static inline void copy_cache_entry(struct cache_entry *dst,
                                    const struct cache_entry *src)
 {
-       unsigned int state = dst->ce_flags & CE_STATE_MASK;
+       unsigned int state = dst->ce_flags & CE_HASHED;
 
        /* Don't copy hash chain and name */
-       memcpy(dst, src, offsetof(struct cache_entry, next));
+       memcpy(&dst->ce_stat_data, &src->ce_stat_data,
+                       offsetof(struct cache_entry, name) -
+                       offsetof(struct cache_entry, ce_stat_data));
 
        /* Restore the hash state */
-       dst->ce_flags = (dst->ce_flags & ~CE_STATE_MASK) | state;
+       dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state;
 }
 
 static inline unsigned create_ce_flags(unsigned stage)
@@ -277,8 +277,8 @@ struct index_state {
        struct cache_time timestamp;
        unsigned name_hash_initialized : 1,
                 initialized : 1;
-       struct hash_table name_hash;
-       struct hash_table dir_hash;
+       struct hashmap name_hash;
+       struct hashmap dir_hash;
 };
 
 extern struct index_state the_index;
@@ -314,7 +314,8 @@ extern void free_name_hash(struct index_state *istate);
 #define refresh_cache(flags) refresh_index(&the_index, (flags), NULL, NULL, NULL)
 #define ce_match_stat(ce, st, options) ie_match_stat(&the_index, (ce), (st), (options))
 #define ce_modified(ce, st, options) ie_modified(&the_index, (ce), (st), (options))
-#define cache_name_exists(name, namelen, igncase) index_name_exists(&the_index, (name), (namelen), (igncase))
+#define cache_dir_exists(name, namelen) index_dir_exists(&the_index, (name), (namelen))
+#define cache_file_exists(name, namelen, igncase) index_file_exists(&the_index, (name), (namelen), (igncase))
 #define cache_name_is_other(name, namelen) index_name_is_other(&the_index, (name), (namelen))
 #define resolve_undo_clear() resolve_undo_clear_index(&the_index)
 #define unmerge_cache_entry_at(at) unmerge_index_entry_at(&the_index, at)
@@ -463,7 +464,8 @@ extern int write_index(struct index_state *, int newfd);
 extern int discard_index(struct index_state *);
 extern int unmerged_index(const struct index_state *);
 extern int verify_path(const char *path);
-extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
+extern struct cache_entry *index_dir_exists(struct index_state *istate, const char *name, int namelen);
+extern struct cache_entry *index_file_exists(struct index_state *istate, const char *name, int namelen, int igncase);
 extern int index_name_pos(const struct index_state *, const char *name, int namelen);
 #define ADD_CACHE_OK_TO_ADD 1          /* Ok to add */
 #define ADD_CACHE_OK_TO_REPLACE 2      /* Ok to replace file/directory */
@@ -880,7 +882,7 @@ extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, i
 
 extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
 extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
-extern int interpret_branch_name(const char *str, struct strbuf *);
+extern int interpret_branch_name(const char *str, int len, struct strbuf *);
 extern int get_sha1_mb(const char *str, unsigned char *sha1);
 
 extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);
@@ -953,6 +955,15 @@ struct ident_split {
  */
 extern int split_ident_line(struct ident_split *, const char *, int);
 
+/*
+ * Compare split idents for equality or strict ordering. Note that we
+ * compare only the ident part of the line, ignoring any timestamp.
+ *
+ * Because there are two fields, we must choose one as the primary key; we
+ * currently arbitrarily pick the email.
+ */
+extern int ident_cmp(const struct ident_split *, const struct ident_split *);
+
 struct checkout {
        const char *base_dir;
        int base_dir_len;