Move index-related variables into a structure.

This defines a index_state structure and moves index-related
global variables into it.  Currently there is one instance of
it, the_index, and everybody accesses it, so there is no code
change.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/cache.h b/cache.h
index 89aaf0022d95dfe8ffda4031021e4d059998d28c..4841c9a16187f12e9815b81fd8283cd8fd7ead1a 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -143,9 +143,22 @@ static inline unsigned int ce_mode_from_stat(struct cache_entry *ce, unsigned in
 
 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
 
-extern struct cache_entry **active_cache;
-extern unsigned int active_nr, active_alloc, active_cache_changed;
-extern struct cache_tree *active_cache_tree;
+struct index_state {
+       struct cache_entry **cache;
+       unsigned int cache_nr, cache_alloc, cache_changed;
+       struct cache_tree *cache_tree;
+       time_t timestamp;
+       void *mmap;
+       size_t mmap_size;
+};
+
+extern struct index_state the_index;
+
+#define active_cache (the_index.cache)
+#define active_nr (the_index.cache_nr)
+#define active_alloc (the_index.cache_alloc)
+#define active_cache_changed (the_index.cache_changed)
+#define active_cache_tree (the_index.cache_tree)
 
 enum object_type {
        OBJ_BAD = -1,

diff --git a/read-cache.c b/read-cache.c
index d2f332a6222cc3543bde8fa661c54c5c904cf561..9b4385ea5cfd23ac07b460557cf296650983794d 100644 (file)
--- a/read-cache.c
+++ b/read-cache.c
@@ -19,14 +19,10 @@
 #define CACHE_EXT(s) ( (s[0]<<24)|(s[1]<<16)|(s[2]<<8)|(s[3]) )
 #define CACHE_EXT_TREE 0x54524545      /* "TREE" */
 
-struct cache_entry **active_cache;
-static time_t index_file_timestamp;
-unsigned int active_nr, active_alloc, active_cache_changed;
-
-struct cache_tree *active_cache_tree;
-
-static void *cache_mmap;
-static size_t cache_mmap_size;
+struct index_state the_index;
+#define index_file_timestamp (the_index.timestamp)
+#define cache_mmap (the_index.mmap)
+#define cache_mmap_size (the_index.mmap_size)
 
 /*
  * This only updates the "non-critical" parts of the directory