[DEV] add v1.66.0

libs/dll/example/tutorial2/my_plugin_aggregator.cpp

@@ -0,0 +1,52 @@
+// Copyright 2014 Renato Tegon Forti, Antony Polukhin.
+// Copyright 2015 Antony Polukhin.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include <iostream>
+#include <boost/make_shared.hpp>
+
+// MinGW related workaround
+#define BOOST_DLL_FORCE_ALIAS_INSTANTIATION
+
+//[plugcpp_my_plugin_aggregator
+#include <boost/dll/alias.hpp> // for BOOST_DLL_ALIAS   
+#include "../tutorial_common/my_plugin_api.hpp"
+
+namespace my_namespace {
+
+class my_plugin_aggregator : public my_plugin_api {
+    float aggr_;
+    my_plugin_aggregator() : aggr_(0) {}
+
+public:
+    std::string name() const {
+        return "aggregator";
+    }
+
+    float calculate(float x, float y) {
+        aggr_ += x + y;
+        return aggr_;
+    }
+
+    // Factory method
+    static boost::shared_ptr<my_plugin_aggregator> create() {
+        return boost::shared_ptr<my_plugin_aggregator>(
+            new my_plugin_aggregator()
+        );
+    }
+};
+
+
+BOOST_DLL_ALIAS(
+    my_namespace::my_plugin_aggregator::create, // <-- this function is exported with...
+    create_plugin                               // <-- ...this alias name
+)
+
+} // namespace my_namespace
+//]
+
+
+

libs/dll/example/tutorial2/tutorial2.cpp

@@ -0,0 +1,36 @@
+// Copyright 2014 Renato Tegon Forti, Antony Polukhin.
+// Copyright 2015 Antony Polukhin.
+//
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#include "../b2_workarounds.hpp"
+
+//[callplugcpp_tutorial2
+#include <boost/dll/import.hpp> // for import_alias
+#include <boost/function.hpp>
+#include <iostream>
+#include "../tutorial_common/my_plugin_api.hpp"
+
+namespace dll = boost::dll;
+
+int main(int argc, char* argv[]) {
+    /*<-*/ b2_workarounds::argv_to_path_guard guard(argc, argv); /*->*/
+    boost::filesystem::path shared_library_path(argv[1]);               // argv[1] contains path to directory with our plugin library
+    shared_library_path /= "my_plugin_aggregator";
+    typedef boost::shared_ptr<my_plugin_api> (pluginapi_create_t)();
+    boost::function<pluginapi_create_t> creator;
+
+    creator = boost::dll::import_alias<pluginapi_create_t>(             // type of imported symbol must be explicitly specified
+        shared_library_path,                                            // path to library
+        "create_plugin",                                                // symbol to import
+        dll::load_mode::append_decorations                              // do append extensions and prefixes
+    );
+
+    boost::shared_ptr<my_plugin_api> plugin = creator();
+    std::cout << "plugin->calculate(1.5, 1.5) call:  " << plugin->calculate(1.5, 1.5) << std::endl;
+    std::cout << "plugin->calculate(1.5, 1.5) second call:  " << plugin->calculate(1.5, 1.5) << std::endl;
+    std::cout << "Plugin Name:  " << plugin->name() << std::endl;
+}
+//]