MINOR: hlua_fcn: add Patref:giveup()
If Patref:commit() was used and the new version (generation) isn't going to be committed, calling Patref:giveup() will allow allocated resources to be freed and reused. It is a good habit to call this if commit() isn't called after a prepare().
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@ -3478,7 +3478,12 @@ Patref class
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:returns: true on success and nil on failure (followed by an error message).
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See :js:func:`Patref.prepare()`
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See :js:func:`Patref.prepare()` and :js:func:`Patref.giveup()`
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.. js:function:: Patref.giveup(ref)
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Drop the pending patref version created using Patref:prepare(): get back to
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live dataset.
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.. _applethttp_class:
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@ -2694,6 +2694,28 @@ int hlua_patref_commit(lua_State *L)
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return _hlua_patref_clear(L, LUA_OK, 0);
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}
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int hlua_patref_giveup(lua_State *L)
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{
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struct hlua_patref *ref;
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ref = hlua_checkudata(L, 1, class_patref_ref);
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BUG_ON(!ref);
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if (!(ref->flags & HLUA_PATREF_FL_GEN)) {
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/* nothing to do */
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return 0;
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}
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lua_pushinteger(L, ref->curr_gen); // from
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lua_pushinteger(L, ref->curr_gen); // to
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_hlua_patref_clear(L, LUA_OK, 0);
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/* didn't make use of the generation ID, give it back to the API */
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pat_ref_giveup(ref->ptr, ref->curr_gen);
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return 0;
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}
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int hlua_patref_prepare(lua_State *L)
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{
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struct hlua_patref *ref;
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@ -2746,6 +2768,7 @@ void hlua_fcn_new_patref(lua_State *L, struct pat_ref *ref)
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hlua_class_function(L, "is_map", hlua_patref_is_map);
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hlua_class_function(L, "prepare", hlua_patref_prepare);
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hlua_class_function(L, "commit", hlua_patref_commit);
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hlua_class_function(L, "giveup", hlua_patref_giveup);
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hlua_class_function(L, "purge", hlua_patref_purge);
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}
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