* limitations under the License.
*/
+#include <string>
+#include <vector>
+
#ifndef __DLL_PATH_MANAGER_H__
#define __DLL_PATH_MANAGER_H__
-int initializePathManager(const std::string& runtimeDir, const std::string& tizenFXDir, const std::string& extraDir);
-void finalizePathManager();
+/**
+ * This class helps to easily obtain paths that are frequently used in the implementation.
+ * The following paths are the major paths managed by this class.
+ *
+ * 1. Platform Assemblies Path
+ * - Paths where the platform assemblies exist
+ * - Installation directory of coreclr and tizenfx are included by default
+ *
+ * 2. Application Root Path
+ * - Installation directory of a Tizen application associated with the current process
+ * - bin, lib, data, res directories are under Application Root Path
+ *
+ * 3. AppPaths
+ * - The ":" separated paths where applications's managed assemblies exist
+ * - Returns the bin, lib, and .tac_symlink under AppRootPath
+ * - ":" separated path list
+ *
+ * 4. AppNIPaths
+ * - Paths where applications's native image files exist
+ * - Returns bin/.native_image, lib/.native_image, and .tac_symlink under AppRootPath
+ * - ":" separated path list
+ *
+ * 5. Native Dll Searching Path
+ * - Path to find native libraries required by coreclr
+ *
+ * Platform Assemblies Path can be expanded through the addPlatformAssembliesPath () function.
+ * For example, middleware library path which is passed through plugin can be added to platform assemblies path.
+ *
+ * Application related path (AppPath / AppNIPaths / Native Dll Searching Path) is created based on AppRootPath.
+ * Therefore, it has a temporary location before the AppRootPath is set up,
+ * and has the actual location after the setAppRootPath() function is called.
+*/
+class PathManager
+{
+public:
+ /**
+ * @brief Platform defined path (runtime and tizenfx path) is set by default
+ * Temporal application root path is set by default, and paths which based on application root path is also set.
+ * These paths are updated by calling @setAppRootPath()
+ */
+ PathManager();
+
+ /**
+ * @brief destructor
+ */
+ ~PathManager();
+
+ /**
+ * @brief Add platform assemblies paths. The TPA(Trusted-Platform-Assembly) is generated based on this paths
+ * @param[in] paths the paths to be added
+ * @param[in] isHighPriority if true, paths are added in front of the current list, otherwise added at the end of the list
+ */
+ void addPlatformAssembliesPaths(const std::string& paths, bool isHighPriority = false);
+
+ /**
+ * @brief Add native dll searching paths.
+ * @param[in] paths the paths to be added
+ * @param[in] isHighPriority if true, paths are added in front of the current list, otherwise added at the end of the list
+ */
+ void addNativeDllSearchingPaths(const std::string& paths, bool isHighPriority = false);
+
+ /**
+ * @brief Set application root path.
+ * All application related paths ("bin", "lib", ".tac_symlink", ".native_image") are generated based on it.
+ * A temporary path (/proc/self/fd/[fd]) is used if this function is never called.
+ * @param[in] rootPath application root path
+ */
+ void setAppRootPath(const std::string& rootPath);
+
+ /**
+ * @brief Get runtime path which contains coreclr and corefx
+ * @return runtime path
+ */
+ const std::string& getRuntimePath();
+
+ /**
+ * @brief Get tizenfx path which contains tizenfx
+ * @return runtime path
+ */
+ const std::string& getTizenFXPath();
+
+ /**
+ * @brief Get platform assemblies paths
+ * @return return path vector
+ */
+ const std::vector<std::string>& getPlatformAssembliesPaths();
+
+ /**
+ * @brief Get application root path
+ * @see setAppRootPath()
+ * @return system paths
+ */
+ const std::string& getAppRootPath();
+
+ /**
+ * @brief Get the path of .tac_symlink of application
+ * @return .tac_symlink path
+ */
+ const std::string& getAppTacPath();
+
+ /**
+ * @brief Get the list of directories where the assemlies of this application exist
+ * @return the list(":" seperated) of paths to probe in for an assembly
+ */
+ const std::string& getAppPaths();
+
+ /**
+ * @brief Get the list of directories where the native image of this application exist
+ * @return the list(":" seperated) of paths to probe in for an native image
+ */
+ const std::string& getAppNIPaths();
+
+ /**
+ * @brief Set addtional dll searching path for App.
+ * @param[in] paths path
+ */
+ void setExtraDllPaths(const char* paths);
+
+ /**
+ * @brief Get the list of directories where the native libraries of this application exist
+ * @return the list(":" seperated) of paths the loader should probe when looking for native libraries
+ */
+ const std::string& getNativeDllSearchingPaths();
+
+private:
+ /**
+ * @brief Update application related path (bin, lib, tac_symlink, native_image)
+ * In most cases, appRootPath and appNIRootPath are the same.
+ * Apps installed in read-only storage may have a different appNIRootPath.
+ * @param[in] root path of application. (APP_PATH is geneated based on root path)
+ * @param[in] root path for native image (APP_NI_PATH is generated based on on ni root path )
+ */
+ void updateAppRelatedPath(const std::string& appRootPath, const std::string& appNIRootPath);
-std::string getRuntimeDir();
-std::string getTizenFXDir();
-std::string getTizenFXRefDir();
-std::string getExtraDirs();
-std::string getTPA();
+private:
+ std::vector<std::string> platformAssembliesPaths;
+ std::string systemPaths;
+ std::string appRootPath;
+ std::string appNIRootPath;
+ std::string runtimePath;
+ std::string tizenfxPath;
+ std::string appPaths;
+ std::string appNIPaths;
+ std::string nativeDllSearchingPaths;
+ std::string appTacPath;
+ std::string extraDllPaths;
+ int rootFD;
+ int niRootFD;
+};
#endif /* __DLL_PATH_MANAGER_H__ */