Added `--no-cache` command line parameter

src/main.cpp

@@ -37,6 +37,7 @@ static void usage()
 		"--config             Name of the p2pool config file\n"
 		"--data-api           Path to the p2pool JSON data (use it in tandem with an external web-server)\n"
 		"--stratum-api        Enable /local/ path in api path for Stratum Server statistics\n"
+		"--no-cache           Disable p2pool.cache\n"
 		"--help               Show this help message\n\n"
 		"Example command line:\n\n"
 		"%s --host 127.0.0.1 --rpc-port 18081 --zmq-port 18083 --wallet YOUR_WALLET_ADDRESS --stratum 0.0.0.0:%d --p2p 0.0.0.0:%d\n\n",

src/p2p_server.cpp

@@ -42,7 +42,7 @@ namespace p2pool {
 P2PServer::P2PServer(p2pool* pool)
 	: TCPServer(P2PClient::allocate)
 	, m_pool(pool)
-	, m_cache(new BlockCache())
+	, m_cache(pool->params().m_blockCache ? new BlockCache() : nullptr)
 	, m_cacheLoaded(false)
 	, m_initialPeerList(pool->params().m_p2pPeerList)
 	, m_rd{}

src/params.cpp

@@ -73,6 +73,10 @@ Params::Params(int argc, char* argv[])
 		if (strcmp(argv[i], "--stratum-api") == 0) {
 			m_localStats = true;
 		}
+
+		if (strcmp(argv[i], "--no-cache") == 0) {
+			m_blockCache = false;
+		}
 	}
 
 	if (m_stratumAddresses.empty()) {

src/params.h

@@ -38,6 +38,7 @@ struct Params
 	std::string m_config;
 	std::string m_apiPath;
 	bool m_localStats = false;
+	bool m_blockCache = true;
 };
 
 } // namespace p2pool