#define alloc_nr(x) (((x)+16)*3/2)
+/*
+ * Realloc the buffer pointed at by variable 'x' so that it can hold
+ * at least 'nr' entries; the number of entries currently allocated
+ * is 'alloc', using the standard growing factor alloc_nr() macro.
+ *
+ * DO NOT USE any expression with side-effect for 'x' or 'alloc'.
+ */
+#define ALLOC_GROW(x, nr, alloc) \
+ do { \
+ if ((nr) >= alloc) { \
+ alloc = alloc_nr(alloc); \
+ x = xrealloc((x), alloc * sizeof(*(x))); \
+ } \
+ } while(0)
+
/* Initialize and use the cache information */
extern int read_index(struct index_state *);
extern int read_index_from(struct index_state *, const char *path);
return 0;
}
-struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
-{
+static struct dir_entry *dir_entry_new(const char *pathname, int len) {
struct dir_entry *ent;
- if (cache_name_pos(pathname, len) >= 0)
- return NULL;
-
- if (dir->nr == dir->alloc) {
- int alloc = alloc_nr(dir->alloc);
- dir->alloc = alloc;
- dir->entries = xrealloc(dir->entries, alloc*sizeof(ent));
- }
ent = xmalloc(sizeof(*ent) + len + 1);
ent->ignored = ent->ignored_dir = 0;
ent->len = len;
memcpy(ent->name, pathname, len);
ent->name[len] = 0;
- dir->entries[dir->nr++] = ent;
return ent;
}
+struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len)
+{
+ if (cache_name_pos(pathname, len) >= 0)
+ return NULL;
+
+ ALLOC_GROW(dir->entries, dir->nr, dir->alloc);
+ return dir->entries[dir->nr++] = dir_entry_new(pathname, len);
+}
+
enum exist_status {
index_nonexistent = 0,
index_directory,