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-rw-r--r--plugins/lua2c-interface.cpp75
1 files changed, 75 insertions, 0 deletions
diff --git a/plugins/lua2c-interface.cpp b/plugins/lua2c-interface.cpp
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--- /dev/null
+++ b/plugins/lua2c-interface.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author Romain Forlot <romain.forlot@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+#include <systemd/sd-event.h>
+#include <json-c/json_object.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "signal-composer.hpp"
+#include "ctl-config.h"
+#include "wrap-json.h"
+
+extern "C"
+{
+
+CTLP_LUALOAD
+CTLP_REGISTER("lua2c-interface");
+
+typedef struct CtxS {
+ struct signalCBT* pluginHandle;
+} CtxT;
+
+static CtxT *pluginCtx = NULL;
+
+// Call at initialisation time
+CTLP_ONLOAD(plugin, handle) {
+ pluginCtx = (CtxT*)calloc (1, sizeof(CtxT));
+ pluginCtx->pluginHandle = (struct signalCBT*)handle;
+
+ AFB_NOTICE ("Low-can plugin: label='%s' version='%s' info='%s'",
+ plugin->label,
+ plugin->version,
+ plugin->info);
+
+ return (void*)pluginCtx;
+}
+
+CTLP_LUA2C (setSignalValueWrap, label, argsJ)
+{
+ const char* name = nullptr;
+ double resultNum;
+ uint64_t timestamp;
+ if(! wrap_json_unpack(argsJ, "{ss, sF, sF? !}",
+ "name", &name,
+ "value", &resultNum,
+ "timestamp", &timestamp))
+ {
+ AFB_ERROR("Fail to set value for label: %s, argsJ: %s", label, json_object_to_json_string(argsJ));
+ return -1;
+ }
+
+ struct signalValue result = {0,0,1, resultNum, 0, ""};
+ pluginCtx->pluginHandle->setSignalValue(name, timestamp, result);
+ return 0;
+}
+
+// extern "C" closure
+}