X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/agedu/blobdiff_plain/256c29a27ba79677a78bc676a3cc73ee1aad2d68..a8a4d6d837f5029124d26483e4b3a390de69823e:/trie.h

diff --git a/trie.h b/trie.h
index ef52a08..ea24ef8 100644
--- a/trie.h
+++ b/trie.h
@@ -50,6 +50,17 @@ int triebuild_finish(triebuild *tb);
 void triebuild_free(triebuild *tb);
 
 /* ----------------------------------------------------------------------
+ * Anomalous function which modifies a trie after it's memory-mapped.
+ */
+
+/*
+ * Invent new fake atimes for each directory in the trie, by
+ * taking the maximum (latest) of the directory's previously
+ * stored atime and the atimes of everything below it.
+ */
+void trie_fake_dir_atimes(void *t);
+
+/* ----------------------------------------------------------------------
  * Functions to query a trie given a pointer to the start of the
  * memory-mapped file.
  */
@@ -80,6 +91,11 @@ unsigned long trie_before(const void *t, const char *pathname);
 void trie_getpath(const void *t, unsigned long n, char *buf);
 
 /*
+ * Return the trie_file * for the nth entry in the trie.
+ */
+const struct trie_file *trie_getfile(const void *t, unsigned long n);
+
+/*
  * Return the total number of entries in the whole trie.
  */
 unsigned long trie_count(const void *t);
@@ -99,6 +115,7 @@ unsigned long trie_count(const void *t);
 typedef struct triewalk triewalk;
 triewalk *triewalk_new(const void *t);
 const struct trie_file *triewalk_next(triewalk *tw, char *buf);
+void triewalk_rebase(triewalk *tw, const void *t);
 void triewalk_free(triewalk *tw);
 
 /* ----------------------------------------------------------------------