netdev-dpdk: fix mbuf leaks

[cascardo/ovs.git] / lib / ovsdb-data.h

diff --git a/lib/ovsdb-data.h b/lib/ovsdb-data.h
index ced3033..2789540 100644 (file)
--- a/lib/ovsdb-data.h
+++ b/lib/ovsdb-data.h
@@ -1,4 +1,4 @@
-/* Copyright (c) 2009, 2010, 2011 Nicira Networks
+/* Copyright (c) 2009, 2010, 2011, 2012, 2015 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,10 +19,11 @@
 #include <stdlib.h>
 #include "compiler.h"
 #include "ovsdb-types.h"
+#include "shash.h"
 
 struct ds;
 struct ovsdb_symbol_table;
-struct shash;
+struct smap;
 
 /* One value of an atomic type (given by enum ovs_atomic_type). */
 union ovsdb_atom {
@@ -84,14 +85,14 @@ struct ovsdb_error *ovsdb_atom_from_json(union ovsdb_atom *,
                                          const struct ovsdb_base_type *,
                                          const struct json *,
                                          struct ovsdb_symbol_table *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 struct json *ovsdb_atom_to_json(const union ovsdb_atom *,
                                 enum ovsdb_atomic_type);
 
 char *ovsdb_atom_from_string(union ovsdb_atom *,
                              const struct ovsdb_base_type *, const char *,
                              struct ovsdb_symbol_table *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 void ovsdb_atom_to_string(const union ovsdb_atom *, enum ovsdb_atomic_type,
                           struct ds *);
 void ovsdb_atom_to_bare(const union ovsdb_atom *, enum ovsdb_atomic_type,
@@ -99,7 +100,7 @@ void ovsdb_atom_to_bare(const union ovsdb_atom *, enum ovsdb_atomic_type,
 
 struct ovsdb_error *ovsdb_atom_check_constraints(
     const union ovsdb_atom *, const struct ovsdb_base_type *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 \f
 /* An instance of an OVSDB type (given by struct ovsdb_type).
  *
@@ -141,7 +142,7 @@ void ovsdb_datum_swap(struct ovsdb_datum *, struct ovsdb_datum *);
 /* Checking and maintaining invariants. */
 struct ovsdb_error *ovsdb_datum_sort(struct ovsdb_datum *,
                                      enum ovsdb_atomic_type key_type)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 
 void ovsdb_datum_sort_assert(struct ovsdb_datum *,
                              enum ovsdb_atomic_type key_type);
@@ -152,27 +153,32 @@ size_t ovsdb_datum_sort_unique(struct ovsdb_datum *,
 
 struct ovsdb_error *ovsdb_datum_check_constraints(
     const struct ovsdb_datum *, const struct ovsdb_type *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 
 /* Type conversion. */
 struct ovsdb_error *ovsdb_datum_from_json(struct ovsdb_datum *,
                                           const struct ovsdb_type *,
                                           const struct json *,
                                           struct ovsdb_symbol_table *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
+struct ovsdb_error *ovsdb_transient_datum_from_json(
+                                          struct ovsdb_datum *,
+                                          const struct ovsdb_type *,
+                                          const struct json *)
+    OVS_WARN_UNUSED_RESULT;
 struct json *ovsdb_datum_to_json(const struct ovsdb_datum *,
                                  const struct ovsdb_type *);
 
 char *ovsdb_datum_from_string(struct ovsdb_datum *,
                               const struct ovsdb_type *, const char *,
                               struct ovsdb_symbol_table *)
-    WARN_UNUSED_RESULT;
+    OVS_WARN_UNUSED_RESULT;
 void ovsdb_datum_to_string(const struct ovsdb_datum *,
                            const struct ovsdb_type *, struct ds *);
 void ovsdb_datum_to_bare(const struct ovsdb_datum *,
                          const struct ovsdb_type *, struct ds *);
 
-void ovsdb_datum_from_shash(struct ovsdb_datum *, struct shash *);
+void ovsdb_datum_from_smap(struct ovsdb_datum *, struct smap *);
 
 /* Comparison. */
 uint32_t ovsdb_datum_hash(const struct ovsdb_datum *,
@@ -210,6 +216,18 @@ void ovsdb_datum_subtract(struct ovsdb_datum *a,
                           const struct ovsdb_datum *b,
                           const struct ovsdb_type *b_type);
 
+/* Generate and apply diffs */
+void ovsdb_datum_diff(struct ovsdb_datum *diff,
+                      const struct ovsdb_datum *old,
+                      const struct ovsdb_datum *new,
+                      const struct ovsdb_type *type);
+
+struct ovsdb_error *ovsdb_datum_apply_diff(struct ovsdb_datum *new,
+                                           const struct ovsdb_datum *old,
+                                           const struct ovsdb_datum *diff,
+                                           const struct ovsdb_type *type)
+OVS_WARN_UNUSED_RESULT;
+
 /* Raw operations that may not maintain the invariants. */
 void ovsdb_datum_remove_unsafe(struct ovsdb_datum *, size_t idx,
                                const struct ovsdb_type *);
@@ -229,9 +247,15 @@ ovsdb_datum_conforms_to_type(const struct ovsdb_datum *datum,
 /* A table mapping from names to data items.  Currently the data items are
  * always UUIDs; perhaps this will be expanded in the future. */
 
+struct ovsdb_symbol_table {
+    struct shash sh;            /* Maps from name to struct ovsdb_symbol *. */
+};
+
 struct ovsdb_symbol {
     struct uuid uuid;           /* The UUID that the symbol represents. */
-    bool used;                  /* Already used as row UUID? */
+    bool created;               /* Already used to create row? */
+    bool strong_ref;            /* Parsed a strong reference to this row? */
+    bool weak_ref;              /* Parsed a weak reference to this row? */
 };
 
 struct ovsdb_symbol_table *ovsdb_symbol_table_create(void);
@@ -243,13 +267,12 @@ struct ovsdb_symbol *ovsdb_symbol_table_put(struct ovsdb_symbol_table *,
                                             const struct uuid *, bool used);
 struct ovsdb_symbol *ovsdb_symbol_table_insert(struct ovsdb_symbol_table *,
                                                const char *name);
-const char *ovsdb_symbol_table_find_unused(const struct ovsdb_symbol_table *);
 \f
 /* Tokenization
  *
  * Used by ovsdb_atom_from_string() and ovsdb_datum_from_string(). */
 
-char *ovsdb_token_parse(const char **, char **outp) WARN_UNUSED_RESULT;
+char *ovsdb_token_parse(const char **, char **outp) OVS_WARN_UNUSED_RESULT;
 bool ovsdb_token_is_delim(unsigned char);
 
 #endif /* ovsdb-data.h */