From 84ed68ad40c96b66f7d7c559855534c2b4f9f65a Mon Sep 17 00:00:00 2001
From: Cho Woong Suk <ws77.cho@samsung.com>
Date: Fri, 23 Jun 2017 10:29:44 +0900
Subject: [PATCH] support launcher plugin

Change-Id: Ie992819b4918e65fd733edec2e46136324c59e0e
---
 NativeLauncher/launcher/dotnet/dotnet_launcher.cc | 59 ++++++++++++++++++++++-
 NativeLauncher/launcher/dotnet/dotnet_launcher.h  | 22 +++++++++
 NativeLauncher/launcher/main.cc                   |  1 +
 3 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/NativeLauncher/launcher/dotnet/dotnet_launcher.cc b/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
index d01c155..6724558 100644
--- a/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
+++ b/NativeLauncher/launcher/dotnet/dotnet_launcher.cc
@@ -26,6 +26,8 @@
 #include "launcher.h"
 #include "dotnet_launcher.h"
 
+#define PLUGIN_PATH "/usr/share/dotnet.tizen/lib/libdotnet_plugin.so"
+
 namespace tizen {
 namespace runtime {
 namespace dotnetcore {
@@ -39,7 +41,14 @@ CoreRuntime::CoreRuntime() :
 	__hostHandle(nullptr),
 	__domainId(-1),
 	preparedFunction(nullptr),
-	launchFunction(nullptr)
+	launchFunction(nullptr),
+	__pluginLib(nullptr),
+	pluginInitialize(nullptr),
+	pluginPreload(nullptr),
+	pluginSetAppInfo(nullptr),
+	pluginGetDllPath(nullptr),
+	pluginBeforeExecute(nullptr),
+	pluginFinalize(nullptr)
 {
 #define __XSTR(x) #x
 #define __STR(x) __XSTR(x)
@@ -63,6 +72,22 @@ CoreRuntime::CoreRuntime() :
 #undef __STR
 #undef __XSTR
 
+	// support launcher plugin
+	if (!fileNotExist(PLUGIN_PATH)) {
+		__pluginLib = dlopen(PLUGIN_PATH, RTLD_NOW | RTLD_LOCAL);
+		if (__pluginLib) {
+			pluginInitialize  = (plugin_initialize_ptr)dlsym(__pluginLib, "plugin_initialize");
+			pluginPreload  = (plugin_preload_ptr)dlsym(__pluginLib, "plugin_preload");
+			pluginSetAppInfo  = (plugin_set_app_info_ptr)dlsym(__pluginLib, "plugin_set_app_info");
+			pluginGetDllPath  = (plugin_get_dll_path_ptr)dlsym(__pluginLib, "plugin_get_dll_path");
+			pluginBeforeExecute  = (plugin_before_execute_ptr)dlsym(__pluginLib, "plugin_before_execute");
+			pluginFinalize  = (plugin_finalize_ptr)dlsym(__pluginLib, "plugin_finalize");
+		}
+	}
+
+	if (pluginInitialize)
+		pluginInitialize();
+
 	_DBG("Constructor called!!");
 }
 
@@ -159,6 +184,9 @@ int CoreRuntime::initialize(bool standalone)
 	_DBG("this addr : %x", this);
 	_DBG("coreclr_initialize : %x", initializeClr);
 
+	if (!standalone && pluginPreload)
+		pluginPreload();
+
 	return 0;
 }
 
@@ -256,6 +284,22 @@ void CoreRuntime::dispose()
 
 	__coreclrLib = nullptr;
 
+	if (pluginFinalize)
+		pluginFinalize();
+
+	if (__pluginLib != nullptr) {
+		if (dlclose(__pluginLib) != 0)
+			_ERR("libdotnet_plugin.so close failed");
+
+		__pluginLib = nullptr;
+		pluginInitialize = nullptr;
+		pluginPreload = nullptr;
+		pluginSetAppInfo = nullptr;
+		pluginGetDllPath = nullptr;
+		pluginBeforeExecute = nullptr;
+		pluginFinalize = nullptr;
+	}
+
 	_DBG("Dotnet runtime disposed");
 }
 
@@ -271,6 +315,9 @@ int CoreRuntime::launch(const char* appId, const char* root, const char* path, i
 		return 1;
 	}
 
+	if (pluginSetAppInfo)
+		pluginSetAppInfo(appId, path);
+
 	std::string tpa;
 	std::string appRoot = root;
 	std::string appBin = concatPath(appRoot, "bin");
@@ -280,6 +327,13 @@ int CoreRuntime::launch(const char* appId, const char* root, const char* path, i
 	std::vector<std::string> searchDirectories;
 	searchDirectories.push_back(appBin);
 	searchDirectories.push_back(appLib);
+	if (pluginGetDllPath) {
+		std::string pluginPath = pluginGetDllPath();
+		if (!pluginPath.empty()) {
+			probePath = probePath + ":" + pluginPath;
+			searchDirectories.push_back(pluginPath);
+		}
+	}
 	searchDirectories.push_back(__runtimeDirectory);
 	searchDirectories.push_back(__deviceAPIDirectory);
 	searchDirectories.push_back(__refAPIDirectory);
@@ -289,6 +343,9 @@ int CoreRuntime::launch(const char* appId, const char* root, const char* path, i
 
 	assembliesInDirectory(searchDirectories, tpa);
 
+	if (pluginBeforeExecute)
+		pluginBeforeExecute();
+
 #ifdef USE_MANAGED_LAUNCHER
 	runManagedLauncher(appId, probePath.c_str(), tpa.c_str());
 
diff --git a/NativeLauncher/launcher/dotnet/dotnet_launcher.h b/NativeLauncher/launcher/dotnet/dotnet_launcher.h
index 1e9bee7..931846c 100644
--- a/NativeLauncher/launcher/dotnet/dotnet_launcher.h
+++ b/NativeLauncher/launcher/dotnet/dotnet_launcher.h
@@ -49,6 +49,20 @@ extern "C"
 			const char* entryPointTypeName,
 			const char* entryPointMethodName,
 			void** delegate);
+
+	typedef void (*plugin_initialize_ptr)();
+
+	typedef void (*plugin_preload_ptr)();
+
+	typedef void (*plugin_set_app_info_ptr)(
+			const char* appId,
+			const char* hostHandle);
+
+	typedef char* (*plugin_get_dll_path_ptr)();
+
+	typedef void (*plugin_before_execute_ptr)();
+
+	typedef void (*plugin_finalize_ptr)();
 }
 
 namespace tizen {
@@ -84,6 +98,14 @@ class CoreRuntime : public tizen::runtime::LauncherInterface
 		unsigned int __domainId;
 		PreparedFunctionPtr preparedFunction;
 		LaunchFunctionPtr launchFunction;
+		// plugin function pointer
+		void* __pluginLib;
+		plugin_initialize_ptr pluginInitialize;
+		plugin_preload_ptr	pluginPreload;
+		plugin_set_app_info_ptr	pluginSetAppInfo;
+		plugin_get_dll_path_ptr	pluginGetDllPath;
+		plugin_before_execute_ptr pluginBeforeExecute;
+		plugin_finalize_ptr	pluginFinalize;
 };
 
 }  // dotnetcore
diff --git a/NativeLauncher/launcher/main.cc b/NativeLauncher/launcher/main.cc
index 7063a2d..b5fdb17 100644
--- a/NativeLauncher/launcher/main.cc
+++ b/NativeLauncher/launcher/main.cc
@@ -126,5 +126,6 @@ int main(int argc, char *argv[])
 		Launchpad.loaderMain(argc, argv);
 	}
 
+	runtime->dispose();
 	return 0;
 }
-- 
2.7.4