From: Vsevolod Stakhov <vsevolod@highsecure.ru>
Date: Sat, 15 Oct 2016 11:24:01 +0000 (+0100)
Subject: [Minor] Add function to get neural net layers
X-Git-Tag: 1.4.0~261
X-Git-Url: https://source.dussan.org/?a=commitdiff_plain;h=50ed1e6c5a60ca71fdfcf528f634ecc8cd266777;p=rspamd.git

[Minor] Add function to get neural net layers
---

diff --git a/src/lua/lua_fann.c b/src/lua/lua_fann.c
index d6dd921e7..39bcb146f 100644
--- a/src/lua/lua_fann.c
+++ b/src/lua/lua_fann.c
@@ -45,6 +45,7 @@ LUA_FUNCTION_DEF (fann, save);
 LUA_FUNCTION_DEF (fann, data);
 LUA_FUNCTION_DEF (fann, get_inputs);
 LUA_FUNCTION_DEF (fann, get_outputs);
+LUA_FUNCTION_DEF (fann, get_layers);
 LUA_FUNCTION_DEF (fann, get_mse);
 LUA_FUNCTION_DEF (fann, dtor);
 
@@ -64,6 +65,7 @@ static const struct luaL_reg fannlib_m[] = {
 		LUA_INTERFACE_DEF (fann, data),
 		LUA_INTERFACE_DEF (fann, get_inputs),
 		LUA_INTERFACE_DEF (fann, get_outputs),
+		LUA_INTERFACE_DEF (fann, get_layers),
 		LUA_INTERFACE_DEF (fann, get_mse),
 		{"__gc", lua_fann_dtor},
 		{"__tostring", rspamd_lua_class_tostring},
@@ -518,6 +520,41 @@ lua_fann_get_mse (lua_State *L)
 #endif
 }
 
+/***
+ * @method rspamd_fann:get_layers()
+ * Returns array of neurons count for each layer
+ * @return {table/number} table with number ofr neurons in each layer
+ */
+static gint
+lua_fann_get_layers (lua_State *L)
+{
+#ifndef WITH_FANN
+	return 0;
+#else
+	struct fann *f = rspamd_lua_check_fann (L, 1);
+	guint nlayers, i, *layers;
+
+	if (f != NULL) {
+		nlayers = fann_get_num_layers (f);
+		layers = g_new (guint, nlayers);
+		fann_get_layer_array (f, layers);
+		lua_createtable (L, nlayers, 0);
+
+		for (i = 0; i < nlayers; i ++) {
+			lua_pushnumber (L, layers[i]);
+			lua_rawseti (L, -1, i + 1);
+		}
+
+		g_free (layers);
+	}
+	else {
+		lua_pushnil (L);
+	}
+
+	return 1;
+#endif
+}
+
 /***
  * @method rspamd_fann:save(fname)
  * Save fann to file named 'fname'