diff options
Diffstat (limited to 'serd')
-rw-r--r-- | serd/serd.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/serd/serd.h b/serd/serd.h index f0d72774..2c40eba6 100644 --- a/serd/serd.h +++ b/serd/serd.h @@ -61,6 +61,14 @@ extern "C" { typedef struct SerdWorldImpl SerdWorld; /** + Nodes. + + A hashing container for nodes that can be used for interning and simplified + memory management. +*/ +typedef struct SerdNodesImpl SerdNodes; + +/** Statement. A subject, predicate, and object, with optional graph context. @@ -1334,6 +1342,63 @@ serd_writer_finish(SerdWriter* writer); /** @} + @name Nodes + @{ +*/ + +/** + Create a new node set. +*/ +SERD_API +SerdNodes* +serd_nodes_new(void); + +/** + Free `nodes` and all nodes that are stored in it. + + Note that this invalidates any pointers previously returned from + `serd_nodes_intern()` or `serd_nodes_manage()` calls on `nodes`. +*/ +SERD_API +void +serd_nodes_free(SerdNodes* nodes); + +/** + Intern `node`. + + Multiple calls with equivalent nodes will return the same pointer. + + @return A node that is different than, but equivalent to, `node`. +*/ +SERD_API +const SerdNode* +serd_nodes_intern(SerdNodes* nodes, const SerdNode* node); + +/** + Manage `node`. + + Like `serd_nodes_intern`, but takes ownership of `node`, freeing it and + returning a previously interned/managed equivalent node if necessary. + + @return A node that is equivalent to `node`. +*/ +SERD_API +const SerdNode* +serd_nodes_manage(SerdNodes* nodes, SerdNode* node); + +/** + Dereference `node`. + + Decrements the reference count of `node`, and frees the internally stored + equivalent node if this was the last reference. Does nothing if no node + equivalent to `node` is stored in `nodes`. +*/ +SERD_API +void +serd_nodes_deref(SerdNodes* nodes, const SerdNode* node); + +/** + @} @name Statement @{ */ |