Make callback from plugin work

Can't shared C++ symbol easily with plugin so workaround
with a separate static function that handle the job

Change-Id: I1208b51bc47c2daa5f08e10b25260cf206f90aed
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

2 files changed, 19 insertions, 1 deletions

diff --git a/signal-composer-binding/signal-composer.cpp b/signal-composer-binding/signal-composer.cpp
index 8ad8c3b..b29df22 100644
--- a/signal-composer-binding/signal-composer.cpp
+++ b/signal-composer-binding/signal-composer.cpp
@@ -19,10 +19,21 @@
 
 #include "signal-composer.hpp"
 
+extern "C" void setSignalValueHandle(const char* aName, long long int timestamp, struct SignalValue value)
+{
+	std::shared_ptr<Signal> sig = bindingApp::instance().searchSignal(aName);
+	if(sig)
+		{sig->set(timestamp, value);}
+}
+
+static struct pluginCBT pluginHandle = {
+	.setSignalValue = setSignalValueHandle,
+};
+
 CtlSectionT bindingApp::ctlSections_[] = {
 	[0]={.key="plugins" ,.label = "plugins", .info=nullptr,
 		.loadCB=PluginConfig,
-		.handle=&bindingApp::instance()},
+		.handle=&pluginHandle},
 	[1]={.key="sources" ,.label = "sources", .info=nullptr,
 		 .loadCB=loadSourcesAPI,
 		 .handle=nullptr},
diff --git a/signal-composer-binding/signal-composer.hpp b/signal-composer-binding/signal-composer.hpp
index 2c7c2e2..341eaab 100644
--- a/signal-composer-binding/signal-composer.hpp
+++ b/signal-composer-binding/signal-composer.hpp
@@ -55,3 +55,10 @@ public:
 
 	int execSubscription() const;
 };
+
+struct pluginCBT
+{
+	void (*setSignalValue)(const char* aName, long long int timestamp, struct SignalValue value);
+};
+
+extern "C" void setSignalValueHandle(const char* aName, long long int timestamp, struct SignalValue value);