Encapsulate protocol_t

mmss/mmss.cpp

@@ -40,11 +40,12 @@ void main(int argc, char *argv[]) {
 		std::exit(1);
 	}
 
-	std::shared_ptr<const protocol_t> proto = load_protocol(argv[1]);
+	context_t mmss;
+
+	std::shared_ptr<const protocol_t> proto = protocol_t::load(&mmss, argv[1]);
 	if (!proto)
 		std::exit(1);
 
-	context_t mmss;
 	config_t conf = {};
 
 	//read_config(&mmss, &conf, "babel_test.mmss");

mmss/mmss.hpp

@@ -61,8 +61,6 @@ public:
 };
 
 
-std::shared_ptr<const protocol_t> load_protocol(const char *module);
-
 bool read_config(context_t *mmss, config_t *conf, const char *filename);
 
 void add_iface(const std::shared_ptr<node_t> &node, const std::shared_ptr<network_t> &net, const std::string &name, const gmrf_addr_t *address);

mmss/node.hpp

@@ -26,8 +26,8 @@
 
 #pragma once
 
-#include "types.hpp"
 #include "iface.hpp"
+#include "protocol.hpp"
 
 #include <list>
 #include <memory>

mmss/protocol.cpp

@@ -24,43 +24,36 @@
 */
 
 
+#include "protocol.hpp"
 #include "mmss.hpp"
 
 #include <dlfcn.h>
-#include <cstdio>
 
 
 namespace MMSS {
 
-class dlcloser {
-private:
-	void *handle;
+protocol_t::~protocol_t() {
+	::dlclose(handle);
+}
 
-public:
-	dlcloser(void *handle0) : handle(handle0) {}
-	void operator()(const protocol_t *ptr) const {
-		::dlclose(handle);
-	}
-};
-
-std::shared_ptr<const protocol_t> load_protocol(const char *module) {
-	void *handle = ::dlopen(module, RTLD_NOW);
+std::shared_ptr<const protocol_t> protocol_t::load(context_t *mmss, const std::string &module) {
+	void *handle = ::dlopen(module.c_str(), RTLD_NOW);
 	if (!handle) {
-		std::fprintf(stderr, "unable to load protocol from `%s': %s\n", module, dlerror());
+		mmss->logf(LOG_ERR, "unable to load protocol from `%s': %s", module.c_str(), dlerror());
 		return std::shared_ptr<const protocol_t>();
 	}
 
 	::dlerror();
-	const protocol_t *proto = reinterpret_cast<const protocol_t*>(::dlsym(handle, "mmss_protocol_info"));
+	const mmss_protocol_t *proto = reinterpret_cast<const mmss_protocol_t*>(::dlsym(handle, "mmss_protocol_info"));
 	if (!proto) {
-		std::fprintf(stderr, "unable to load protocol from `%s': %s\n", module, dlerror());
+		mmss->logf(LOG_ERR, "unable to load protocol from `%s': %s", module.c_str(), dlerror());
 		::dlclose(handle);
 		return std::shared_ptr<const protocol_t>();
 	}
 
-	std::fprintf(stderr, "loaded protocol `%s' version %s\n", proto->get_name(), proto->get_version());
+	mmss->logf(LOG_INFO, "loaded protocol `%s' version %s", proto->get_name(), proto->get_version());
 
-	return std::shared_ptr<const protocol_t>(proto, dlcloser(handle));
+	return std::shared_ptr<const protocol_t>(new protocol_t(handle, proto));
 }
 
 }

mmss/protocol.hpp

@@ -0,0 +1,75 @@
+/*
+  Copyright (c) 2013, Matthias Schiffer <mschiffer@universe-factory.net>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice,
+       this list of conditions and the following disclaimer in the documentation
+       and/or other materials provided with the distribution.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include "types.hpp"
+
+extern "C" {
+
+#include <mmss/protocol.h>
+
+}
+
+#include <memory>
+
+
+namespace MMSS {
+
+class protocol_t {
+private:
+	void *handle;
+	const mmss_protocol_t *proto;
+
+	protocol_t(void *handle0, const mmss_protocol_t *proto0) : handle(handle0), proto(proto0) {}
+
+public:
+	~protocol_t();
+
+	const char* get_name() const {
+		return proto->get_name();
+	}
+
+	const char* get_version() const {
+		return proto->get_version();
+	}
+
+	gmrf_context_t* init(gmrf_t *gmrf) const {
+		return proto->init(gmrf);
+	}
+
+	void add_iface(gmrf_t *gmrf, gmrf_context_t *ctx, gmrf_iface_t *iface) const {
+		return proto->add_iface(gmrf, ctx, iface);
+	}
+
+	void handle_packet(gmrf_t *gmrf, gmrf_context_t *ctx, gmrf_iface_t *iface, const gmrf_addr_t *source, const void *data, size_t len) const {
+		return proto->handle_packet(gmrf, ctx, iface, source, data, len);
+	}
+
+	static std::shared_ptr<const protocol_t> load(context_t *mmss, const std::string &module);
+};
+
+}

mmss/types.hpp

@@ -32,7 +32,6 @@
 
 extern "C" {
 
-#include <mmss/protocol.h>
 #include <gmrf/gmrf.h>
 
 }
@@ -50,8 +49,7 @@ class network_t;
 class node_t;
 class now_t;
 class packet_t;
+class protocol_t;
 class scheduled_t;
 
-typedef ::mmss_protocol_t protocol_t;
-
 }