Don't init gRPC if it's not used

src/main.cpp

@@ -343,7 +343,9 @@ int main(int argc, char* argv[])
 	}
 
 #ifdef WITH_GRPC
-	grpc_init();
+	if (params.grpc_needed()) {
+		grpc_init();
+	}
 #endif
 
 #ifdef WITH_TLS
@@ -362,7 +364,9 @@ int main(int argc, char* argv[])
 	}
 
 #ifdef WITH_GRPC
-	grpc_shutdown();
+	if (params.grpc_needed()) {
+		grpc_shutdown();
+	}
 #endif
 
 	curl_global_cleanup();

src/params.cpp

@@ -21,6 +21,11 @@
 #include "p2p_server.h"
 #include <fstream>
 
+#ifdef WITH_GRPC
+#include "merge_mining_client.h"
+#include "merge_mining_client_tari.h"
+#endif
+
 LOG_CATEGORY(Params)
 
 void p2pool_usage();
@@ -476,6 +481,20 @@ bool Params::valid() const
 	return true;
 }
 
+#ifdef WITH_GRPC
+bool Params::grpc_needed() const
+{
+	for (const MergeMiningHost& h : m_mergeMiningHosts) {
+		if (h.m_host.find(MergeMiningClientTari::TARI_PREFIX) == 0) {
+			return true;
+		}
+	}
+
+	return false;
+}
+#endif
+
+
 bool Params::Host::init_display_name(const Params& p)
 {
 	m_displayName = m_address;

src/params.h

@@ -33,6 +33,10 @@ struct Params
 
 	bool valid() const;
 
+#ifdef WITH_GRPC
+	bool grpc_needed() const;
+#endif
+
 	struct Host
 	{
 		Host() : m_address("127.0.0.1"), m_rpcPort(18081), m_zmqPort(18083), m_rpcSSL(false) {}