Move literally everything out of src/or

This commit won't build yet -- it just puts everything in a slightly
more logical place.

The reasoning here is that "src/core" will hold the stuff that every (or
nearly every) tor instance will need in order to do onion routing.
Other features (including some necessary ones) will live in
"src/feature".  The "src/app" directory will hold the stuff needed
to have Tor be an application you can actually run.

This commit DOES NOT refactor the former contents of src/or into a
logical set of acyclic libraries, or change any code at all.  That
will have to come in the future.

We will continue to move things around and split them in the future,
but I hope this lays a reasonable groundwork for doing so.

1 files changed, 56 insertions, 0 deletions

diff --git a/src/feature/dircommon/fp_pair.h b/src/feature/dircommon/fp_pair.h
new file mode 100644
index 0000000000..500c7c9928
--- /dev/null
+++ b/src/feature/dircommon/fp_pair.h
@@ -0,0 +1,56 @@
+/* Copyright (c) 2013-2018, The Tor Project, Inc. */
+/* See LICENSE for licensing information */
+
+/**
+ * \file fp_pair.h
+ * \brief Header file for fp_pair.c.
+ **/
+
+#ifndef _TOR_FP_PAIR_H
+#define _TOR_FP_PAIR_H
+
+/** A pair of digests created by dir_split_resource_info_fingerprint_pairs() */
+typedef struct {
+  char first[DIGEST_LEN];
+  char second[DIGEST_LEN];
+} fp_pair_t;
+
+/*
+ * Declare fp_pair_map_t functions and structs
+ */
+
+typedef struct fp_pair_map_entry_s fp_pair_map_entry_t;
+typedef struct fp_pair_map_s fp_pair_map_t;
+typedef fp_pair_map_entry_t *fp_pair_map_iter_t;
+
+fp_pair_map_t * fp_pair_map_new(void);
+void * fp_pair_map_set(fp_pair_map_t *map, const fp_pair_t *key, void *val);
+void * fp_pair_map_set_by_digests(fp_pair_map_t *map,
+                                  const char *first, const char *second,
+                                  void *val);
+void * fp_pair_map_get(const fp_pair_map_t *map, const fp_pair_t *key);
+void * fp_pair_map_get_by_digests(const fp_pair_map_t *map,
+                                  const char *first, const char *second);
+void * fp_pair_map_remove(fp_pair_map_t *map, const fp_pair_t *key);
+void fp_pair_map_free_(fp_pair_map_t *map, void (*free_val)(void*));
+#define fp_pair_map_free(map, free_val) do {            \
+    fp_pair_map_free_((map), (free_val));               \
+    (map) = NULL;                                       \
+  } while (0)
+
+int fp_pair_map_isempty(const fp_pair_map_t *map);
+int fp_pair_map_size(const fp_pair_map_t *map);
+fp_pair_map_iter_t * fp_pair_map_iter_init(fp_pair_map_t *map);
+fp_pair_map_iter_t * fp_pair_map_iter_next(fp_pair_map_t *map,
+                                           fp_pair_map_iter_t *iter);
+fp_pair_map_iter_t * fp_pair_map_iter_next_rmv(fp_pair_map_t *map,
+                                               fp_pair_map_iter_t *iter);
+void fp_pair_map_iter_get(fp_pair_map_iter_t *iter,
+                          fp_pair_t *key_out, void **val_out);
+int fp_pair_map_iter_done(fp_pair_map_iter_t *iter);
+void fp_pair_map_assert_ok(const fp_pair_map_t *map);
+
+#undef DECLARE_MAP_FNS
+
+#endif /* !defined(_TOR_FP_PAIR_H) */
+