Remove obsolete note about native CPU byte format

[git.git] / cache.h

diff --git a/cache.h b/cache.h
index 7a656c7..041ec0b 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -27,15 +27,19 @@
 #define DT_UNKNOWN     0
 #define DT_DIR         1
 #define DT_REG         2
+#define DT_LNK         3
 #define DTYPE(de)      DT_UNKNOWN
 #endif
 
 /*
+ * Environment variables transition.
+ * We accept older names for now but warn.
+ */
+extern char *gitenv_bc(const char *);
+#define gitenv(e) (getenv(e) ? : gitenv_bc(e))
+
+/*
  * Basic data structures for the directory cache
- *
- * NOTE NOTE NOTE! This is all in the native CPU byte format. It's
- * not even trying to be portable. It's trying to be efficient. It's
- * just a cache, after all.
  */
 
 #define CACHE_SIGNATURE 0x44495243     /* "DIRC" */
@@ -96,19 +100,18 @@ static inline unsigned int create_ce_mode(unsigned int mode)
 
 #define cache_entry_size(len) ((offsetof(struct cache_entry,name) + (len) + 8) & ~7)
 
-struct cache_entry **active_cache;
-unsigned int active_nr, active_alloc, active_cache_changed;
-
-#define DB_ENVIRONMENT "SHA1_FILE_DIRECTORY"
-#define DEFAULT_DB_ENVIRONMENT ".git/objects"
-#define ALTERNATE_DB_ENVIRONMENT "SHA1_FILE_DIRECTORIES"
-
-#define get_object_directory() (getenv(DB_ENVIRONMENT) ? : DEFAULT_DB_ENVIRONMENT)
+extern struct cache_entry **active_cache;
+extern unsigned int active_nr, active_alloc, active_cache_changed;
 
+#define GIT_DIR_ENVIRONMENT "GIT_DIR"
+#define DEFAULT_GIT_DIR_ENVIRONMENT ".git"
+#define DB_ENVIRONMENT "GIT_OBJECT_DIRECTORY"
 #define INDEX_ENVIRONMENT "GIT_INDEX_FILE"
-#define DEFAULT_INDEX_ENVIRONMENT ".git/index"
 
-#define get_index_file() (getenv(INDEX_ENVIRONMENT) ? : DEFAULT_INDEX_ENVIRONMENT)
+extern char *get_object_directory(void);
+extern char *get_index_file(void);
+
+#define ALTERNATE_DB_ENVIRONMENT "GIT_ALTERNATE_OBJECT_DIRECTORIES"
 
 #define alloc_nr(x) (((x)+16)*3/2)
 
@@ -119,10 +122,10 @@ extern int cache_name_pos(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 */
 extern int add_cache_entry(struct cache_entry *ce, int option);
-extern int remove_entry_at(int pos);
+extern int remove_cache_entry_at(int pos);
 extern int remove_file_from_cache(char *path);
-extern int same_name(struct cache_entry *a, struct cache_entry *b);
-extern int cache_match_stat(struct cache_entry *ce, struct stat *st);
+extern int ce_same_name(struct cache_entry *a, struct cache_entry *b);
+extern int ce_match_stat(struct cache_entry *ce, struct stat *st);
 extern int index_fd(unsigned char *sha1, int fd, struct stat *st);
 
 #define MTIME_CHANGED  0x0001
@@ -172,7 +175,7 @@ const char *show_date(unsigned long time, int timezone);
 void parse_date(char *date, char *buf, int bufsize);
 void datestamp(char *buf, int bufsize);
 
-static inline void *xmalloc(int size)
+static inline void *xmalloc(size_t size)
 {
        void *ret = malloc(size);
        if (!ret)
@@ -180,7 +183,7 @@ static inline void *xmalloc(int size)
        return ret;
 }
 
-static inline void *xrealloc(void *ptr, int size)
+static inline void *xrealloc(void *ptr, size_t size)
 {
        void *ret = realloc(ptr, size);
        if (!ret)
@@ -188,4 +191,12 @@ static inline void *xrealloc(void *ptr, int size)
        return ret;
 }
 
+static inline void *xcalloc(size_t nmemb, size_t size)
+{
+       void *ret = calloc(nmemb, size);
+       if (!ret)
+               die("Out of memory, calloc failed");
+       return ret;
+}
+
 #endif /* CACHE_H */